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Merge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6

This commit is contained in:
John W. Linville 2011-02-23 16:22:36 -05:00
parent 320d6c1b56 be663ab670
commit 9077f2189e
73 changed files with 30527 additions and 2086 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/Kconfig
View File

@ -274,6 +274,7 @@ source "drivers/net/wireless/b43legacy/Kconfig"
source "drivers/net/wireless/hostap/Kconfig"
source "drivers/net/wireless/ipw2x00/Kconfig"
source "drivers/net/wireless/iwlwifi/Kconfig"
source "drivers/net/wireless/iwlegacy/Kconfig"
source "drivers/net/wireless/iwmc3200wifi/Kconfig"
source "drivers/net/wireless/libertas/Kconfig"
source "drivers/net/wireless/orinoco/Kconfig"

3
drivers/net/wireless/Makefile
View File

@ -41,7 +41,8 @@ obj-$(CONFIG_ADM8211) += adm8211.o
obj-$(CONFIG_MWL8K) += mwl8k.o
obj-$(CONFIG_IWLWIFI) += iwlwifi/
obj-$(CONFIG_IWLAGN) += iwlwifi/
obj-$(CONFIG_IWLWIFI_LEGACY) += iwlegacy/
obj-$(CONFIG_RT2X00) += rt2x00/
obj-$(CONFIG_P54_COMMON) += p54/

116
drivers/net/wireless/iwlegacy/Kconfig Normal file
View File

@ -0,0 +1,116 @@
config IWLWIFI_LEGACY
tristate "Intel Wireless Wifi legacy devices"
depends on PCI && MAC80211
select FW_LOADER
select NEW_LEDS
select LEDS_CLASS
select LEDS_TRIGGERS
select MAC80211_LEDS
menu "Debugging Options"
depends on IWLWIFI_LEGACY
config IWLWIFI_LEGACY_DEBUG
bool "Enable full debugging output in 4965 and 3945 drivers"
depends on IWLWIFI_LEGACY
---help---
This option will enable debug tracing output for the iwlwifilegacy
drivers.
This will result in the kernel module being ~100k larger. You can
control which debug output is sent to the kernel log by setting the
value in
/sys/class/net/wlan0/device/debug_level
This entry will only exist if this option is enabled.
To set a value, simply echo an 8-byte hex value to the same file:
% echo 0x43fff > /sys/class/net/wlan0/device/debug_level
You can find the list of debug mask values in:
drivers/net/wireless/iwlwifilegacy/iwl-debug.h
If this is your first time using this driver, you should say Y here
as the debug information can assist others in helping you resolve
any problems you may encounter.
config IWLWIFI_LEGACY_DEBUGFS
bool "4965 and 3945 debugfs support"
depends on IWLWIFI_LEGACY && MAC80211_DEBUGFS
---help---
Enable creation of debugfs files for the iwlwifilegacy drivers. This
is a low-impact option that allows getting insight into the
driver's state at runtime.
config IWLWIFI_LEGACY_DEVICE_TRACING
bool "iwlwifilegacy legacy device access tracing"
depends on IWLWIFI_LEGACY
depends on EVENT_TRACING
help
Say Y here to trace all commands, including TX frames and IO
accesses, sent to the device. If you say yes, iwlwifilegacy will
register with the ftrace framework for event tracing and dump
all this information to the ringbuffer, you may need to
increase the ringbuffer size. See the ftrace documentation
for more information.
When tracing is not enabled, this option still has some
(though rather small) overhead.
If unsure, say Y so we can help you better when problems
occur.
endmenu
config IWL4965
tristate "Intel Wireless WiFi 4965AGN (iwl4965)"
depends on IWLWIFI_LEGACY
---help---
This option enables support for
Select to build the driver supporting the:
Intel Wireless WiFi Link 4965AGN
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.txt>. The
module will be called iwl4965.
config IWL3945
tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)"
depends on IWLWIFI_LEGACY
---help---
Select to build the driver supporting the:
Intel PRO/Wireless 3945ABG/BG Network Connection
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.txt>. The
module will be called iwl3945.

25
drivers/net/wireless/iwlegacy/Makefile Normal file
View File

@ -0,0 +1,25 @@
obj-$(CONFIG_IWLWIFI_LEGACY) += iwl-legacy.o
iwl-legacy-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
iwl-legacy-objs += iwl-rx.o iwl-tx.o iwl-sta.o
iwl-legacy-objs += iwl-scan.o iwl-led.o
iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-debugfs.o
iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) += iwl-devtrace.o
iwl-legacy-objs += $(iwl-legacy-m)
CFLAGS_iwl-devtrace.o := -I$(src)
# 4965
obj-$(CONFIG_IWL4965) += iwl4965.o
iwl4965-objs := iwl-4965.o iwl4965-base.o iwl-4965-rs.o iwl-4965-led.o
iwl4965-objs += iwl-4965-ucode.o iwl-4965-tx.o
iwl4965-objs += iwl-4965-lib.o iwl-4965-rx.o iwl-4965-calib.o
iwl4965-objs += iwl-4965-sta.o iwl-4965-eeprom.o
iwl4965-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-4965-debugfs.o
# 3945
obj-$(CONFIG_IWL3945) += iwl3945.o
iwl3945-objs := iwl3945-base.o iwl-3945.o iwl-3945-rs.o iwl-3945-led.o
iwl3945-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-3945-debugfs.o
ccflags-y += -D__CHECK_ENDIAN__

11
drivers/net/wireless/iwlwifi/iwl-3945-debugfs.c → drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c
View File

@ -2,7 +2,7 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -60,12 +60,13 @@ ssize_t iwl3945_ucode_rx_stats_read(struct file *file,
int bufsz = sizeof(struct iwl39_statistics_rx_phy) * 40 +
sizeof(struct iwl39_statistics_rx_non_phy) * 40 + 400;
ssize_t ret;
struct iwl39_statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
struct iwl39_statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm,
*max_ofdm;
struct iwl39_statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
struct iwl39_statistics_rx_non_phy *general, *accum_general;
struct iwl39_statistics_rx_non_phy *delta_general, *max_general;
if (!iwl_is_alive(priv))
if (!iwl_legacy_is_alive(priv))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);
@ -335,7 +336,7 @@ ssize_t iwl3945_ucode_tx_stats_read(struct file *file,
ssize_t ret;
struct iwl39_statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
if (!iwl_is_alive(priv))
if (!iwl_legacy_is_alive(priv))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);
@ -434,7 +435,7 @@ ssize_t iwl3945_ucode_general_stats_read(struct file *file,
struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
struct iwl39_statistics_div *div, *accum_div, *delta_div, *max_div;
if (!iwl_is_alive(priv))
if (!iwl_legacy_is_alive(priv))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);

4
drivers/net/wireless/iwlwifi/iwl-3945-debugfs.h → drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h
View File

@ -2,7 +2,7 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -30,7 +30,7 @@
#include "iwl-core.h"
#include "iwl-debug.h"
#ifdef CONFIG_IWLWIFI_DEBUGFS
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
ssize_t iwl3945_ucode_rx_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t iwl3945_ucode_tx_stats_read(struct file *file, char __user *user_buf,

5
drivers/net/wireless/iwlwifi/iwl-3945-fh.h → drivers/net/wireless/iwlegacy/iwl-3945-fh.h
View File

@ -5,7 +5,7 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -30,7 +30,7 @@
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -185,4 +185,3 @@ struct iwl3945_tfd {
#endif /* __iwl_3945_fh_h__ */

9
drivers/net/wireless/iwlwifi/iwl-3945-hw.h → drivers/net/wireless/iwlegacy/iwl-3945-hw.h
View File

@ -5,7 +5,7 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -30,7 +30,7 @@
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -164,12 +164,11 @@ struct iwl3945_eeprom {
/*
* Per-channel regulatory data.
*
* Each channel that *might* be supported by 3945 or 4965 has a fixed location
* Each channel that *might* be supported by 3945 has a fixed location
* in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
* txpower (MSB).
*
* Entries immediately below are for 20 MHz channel width. HT40 (40 MHz)
* channels (only for 4965, not supported by 3945) appear later in the EEPROM.
* Entries immediately below are for 20 MHz channel width.
*
* 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
*/

4
drivers/net/wireless/iwlwifi/iwl-3945-led.c → drivers/net/wireless/iwlegacy/iwl-3945-led.c
View File

@ -1,6 +1,6 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@ -56,7 +56,7 @@ static int iwl3945_send_led_cmd(struct iwl_priv *priv,
.callback = NULL,
};
return iwl_send_cmd(priv, &cmd);
return iwl_legacy_send_cmd(priv, &cmd);
}
const struct iwl_led_ops iwl3945_led_ops = {

2
drivers/net/wireless/iwlwifi/iwl-3945-led.h → drivers/net/wireless/iwlegacy/iwl-3945-led.h
View File

@ -1,6 +1,6 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as

39
drivers/net/wireless/iwlwifi/iwl-3945-rs.c → drivers/net/wireless/iwlegacy/iwl-3945-rs.c
View File

@ -1,6 +1,6 @@
/******************************************************************************
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@ -89,7 +89,7 @@ static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = {
};
#define IWL_RATE_MAX_WINDOW 62
#define IWL_RATE_FLUSH (3*HZ)
#define IWL_RATE_FLUSH (3*HZ)
#define IWL_RATE_WIN_FLUSH (HZ/2)
#define IWL39_RATE_HIGH_TH 11520
#define IWL_SUCCESS_UP_TH 8960
@ -394,18 +394,18 @@ void iwl3945_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 s
IWL_DEBUG_INFO(priv, "leave\n");
}
static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
static void *iwl3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
{
return hw->priv;
}
/* rate scale requires free function to be implemented */
static void rs_free(void *priv)
static void iwl3945_rs_free(void *priv)
{
return;
}
static void *rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
static void *iwl3945_rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
{
struct iwl3945_rs_sta *rs_sta;
struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
@ -423,7 +423,7 @@ static void *rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
return rs_sta;
}
static void rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta,
static void iwl3945_rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta,
void *priv_sta)
{
struct iwl3945_rs_sta *rs_sta = priv_sta;
@ -438,12 +438,12 @@ static void rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta,
/**
* rs_tx_status - Update rate control values based on Tx results
* iwl3945_rs_tx_status - Update rate control values based on Tx results
*
* NOTE: Uses iwl_priv->retry_rate for the # of retries attempted by
* the hardware for each rate.
*/
static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband,
static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb)
{
@ -612,7 +612,7 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
}
/**
* rs_get_rate - find the rate for the requested packet
* iwl3945_rs_get_rate - find the rate for the requested packet
*
* Returns the ieee80211_rate structure allocated by the driver.
*
@ -627,7 +627,7 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
* rate table and must reference the driver allocated rate table
*
*/
static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
void *priv_sta, struct ieee80211_tx_rate_control *txrc)
{
struct ieee80211_supported_band *sband = txrc->sband;
@ -899,7 +899,8 @@ static void iwl3945_remove_debugfs(void *priv, void *priv_sta)
* the station is added. Since mac80211 calls this function before a
* station is added we ignore it.
*/
static void rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband,
static void iwl3945_rs_rate_init_stub(void *priv_r,
struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
{
}
@ -907,13 +908,13 @@ static void rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sba
static struct rate_control_ops rs_ops = {
.module = NULL,
.name = RS_NAME,
.tx_status = rs_tx_status,
.get_rate = rs_get_rate,
.rate_init = rs_rate_init_stub,
.alloc = rs_alloc,
.free = rs_free,
.alloc_sta = rs_alloc_sta,
.free_sta = rs_free_sta,
.tx_status = iwl3945_rs_tx_status,
.get_rate = iwl3945_rs_get_rate,
.rate_init = iwl3945_rs_rate_init_stub,
.alloc = iwl3945_rs_alloc,
.free = iwl3945_rs_free,
.alloc_sta = iwl3945_rs_alloc_sta,
.free_sta = iwl3945_rs_free_sta,
#ifdef CONFIG_MAC80211_DEBUGFS
.add_sta_debugfs = iwl3945_add_debugfs,
.remove_sta_debugfs = iwl3945_remove_debugfs,
@ -991,5 +992,3 @@ void iwl3945_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&rs_ops);
}

319
drivers/net/wireless/iwlwifi/iwl-3945.c → drivers/net/wireless/iwlegacy/iwl-3945.c
View File

@ -1,6 +1,6 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@ -51,7 +51,6 @@
#include "iwl-led.h"
#include "iwl-3945-led.h"
#include "iwl-3945-debugfs.h"
#include "iwl-legacy.h"
#define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
@ -172,14 +171,14 @@ void iwl3945_disable_events(struct iwl_priv *priv)
return;
}
disable_ptr = iwl_read_targ_mem(priv, base + (4 * sizeof(u32)));
array_size = iwl_read_targ_mem(priv, base + (5 * sizeof(u32)));
disable_ptr = iwl_legacy_read_targ_mem(priv, base + (4 * sizeof(u32)));
array_size = iwl_legacy_read_targ_mem(priv, base + (5 * sizeof(u32)));
if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) {
IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n",
disable_ptr);
for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++)
iwl_write_targ_mem(priv,
iwl_legacy_write_targ_mem(priv,
disable_ptr + (i * sizeof(u32)),
evt_disable[i]);
@ -202,7 +201,7 @@ static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
return -1;
}
#ifdef CONFIG_IWLWIFI_DEBUG
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
#define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x
static const char *iwl3945_get_tx_fail_reason(u32 status)
@ -255,7 +254,7 @@ int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate)
break;
case IEEE80211_BAND_2GHZ:
if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
iwl_is_associated(priv, IWL_RXON_CTX_BSS)) {
iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
if (rate == IWL_RATE_11M_INDEX)
next_rate = IWL_RATE_5M_INDEX;
}
@ -285,8 +284,9 @@ static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM);
for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
for (index = iwl_legacy_queue_inc_wrap(index, q->n_bd);
q->read_ptr != index;
q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
tx_info = &txq->txb[txq->q.read_ptr];
ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb);
@ -294,10 +294,10 @@ static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
priv->cfg->ops->lib->txq_free_tfd(priv, txq);
}
if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) &&
if (iwl_legacy_queue_space(q) > q->low_mark && (txq_id >= 0) &&
(txq_id != IWL39_CMD_QUEUE_NUM) &&
priv->mac80211_registered)
iwl_wake_queue(priv, txq);
iwl_legacy_wake_queue(priv, txq);
}
/**
@ -317,7 +317,7 @@ static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
int rate_idx;
int fail;
if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
if ((index >= txq->q.n_bd) || (iwl_legacy_queue_used(&txq->q, index) == 0)) {
IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
"is out of range [0-%d] %d %d\n", txq_id,
index, txq->q.n_bd, txq->q.write_ptr,
@ -363,12 +363,7 @@ static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
* RX handler implementations
*
*****************************************************************************/
#ifdef CONFIG_IWLWIFI_DEBUGFS
/*
* based on the assumption of all statistics counter are in DWORD
* FIXME: This function is for debugging, do not deal with
* the case of counters roll-over.
*/
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
__le32 *stats)
{
@ -402,72 +397,6 @@ static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
}
#endif
/**
* iwl3945_good_plcp_health - checks for plcp error.
*
* When the plcp error is exceeding the thresholds, reset the radio
* to improve the throughput.
*/
static bool iwl3945_good_plcp_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
bool rc = true;
struct iwl3945_notif_statistics current_stat;
int combined_plcp_delta;
unsigned int plcp_msec;
unsigned long plcp_received_jiffies;
if (priv->cfg->base_params->plcp_delta_threshold ==
IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
return rc;
}
memcpy(&current_stat, pkt->u.raw, sizeof(struct
iwl3945_notif_statistics));
/*
* check for plcp_err and trigger radio reset if it exceeds
* the plcp error threshold plcp_delta.
*/
plcp_received_jiffies = jiffies;
plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
(long) priv->plcp_jiffies);
priv->plcp_jiffies = plcp_received_jiffies;
/*
* check to make sure plcp_msec is not 0 to prevent division
* by zero.
*/
if (plcp_msec) {
combined_plcp_delta =
(le32_to_cpu(current_stat.rx.ofdm.plcp_err) -
le32_to_cpu(priv->_3945.statistics.rx.ofdm.plcp_err));
if ((combined_plcp_delta > 0) &&
((combined_plcp_delta * 100) / plcp_msec) >
priv->cfg->base_params->plcp_delta_threshold) {
/*
* if plcp_err exceed the threshold, the following
* data is printed in csv format:
* Text: plcp_err exceeded %d,
* Received ofdm.plcp_err,
* Current ofdm.plcp_err,
* combined_plcp_delta,
* plcp_msec
*/
IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
"%u, %d, %u mSecs\n",
priv->cfg->base_params->plcp_delta_threshold,
le32_to_cpu(current_stat.rx.ofdm.plcp_err),
combined_plcp_delta, plcp_msec);
/*
* Reset the RF radio due to the high plcp
* error rate
*/
rc = false;
}
}
return rc;
}
void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
@ -476,10 +405,10 @@ void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
(int)sizeof(struct iwl3945_notif_statistics),
le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
#ifdef CONFIG_IWLWIFI_DEBUGFS
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
iwl3945_accumulative_statistics(priv, (__le32 *)&pkt->u.raw);
#endif
iwl_recover_from_statistics(priv, pkt);
iwl_legacy_recover_from_statistics(priv, pkt);
memcpy(&priv->_3945.statistics, pkt->u.raw, sizeof(priv->_3945.statistics));
}
@ -491,7 +420,7 @@ void iwl3945_reply_statistics(struct iwl_priv *priv,
__le32 *flag = (__le32 *)&pkt->u.raw;
if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) {
#ifdef CONFIG_IWLWIFI_DEBUGFS
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
memset(&priv->_3945.accum_statistics, 0,
sizeof(struct iwl3945_notif_statistics));
memset(&priv->_3945.delta_statistics, 0,
@ -562,14 +491,14 @@ static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
}
if (!iwl3945_mod_params.sw_crypto)
iwl_set_decrypted_flag(priv,
iwl_legacy_set_decrypted_flag(priv,
(struct ieee80211_hdr *)rxb_addr(rxb),
le32_to_cpu(rx_end->status), stats);
skb_add_rx_frag(skb, 0, rxb->page,
(void *)rx_hdr->payload - (void *)pkt, len);
iwl_update_stats(priv, false, fc, len);
iwl_legacy_update_stats(priv, false, fc, len);
memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
ieee80211_rx(priv->hw, skb);
@ -642,7 +571,8 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
rx_status.signal, rx_status.signal,
rx_status.rate_idx);
iwl_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len), header);
iwl_legacy_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len),
header);
if (network_packet) {
priv->_3945.last_beacon_time =
@ -810,7 +740,7 @@ static u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate)
station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
station->sta.rate_n_flags = cpu_to_le16(tx_rate);
station->sta.mode = STA_CONTROL_MODIFY_MSK;
iwl_send_add_sta(priv, &station->sta, CMD_ASYNC);
iwl_legacy_send_add_sta(priv, &station->sta, CMD_ASYNC);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n",
@ -825,7 +755,7 @@ static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
* to set power to V_AUX, do
if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
~APMG_PS_CTRL_MSK_PWR_SRC);
@ -835,7 +765,7 @@ static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
}
*/
iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
~APMG_PS_CTRL_MSK_PWR_SRC);
@ -845,10 +775,11 @@ static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
{
iwl_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
iwl_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0), rxq->rb_stts_dma);
iwl_write_direct32(priv, FH39_RCSR_WPTR(0), 0);
iwl_write_direct32(priv, FH39_RCSR_CONFIG(0),
iwl_legacy_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
iwl_legacy_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0),
rxq->rb_stts_dma);
iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), 0);
iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0),
FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
@ -859,7 +790,7 @@ static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
/* fake read to flush all prev I/O */
iwl_read_direct32(priv, FH39_RSSR_CTRL);
iwl_legacy_read_direct32(priv, FH39_RSSR_CTRL);
return 0;
}
@ -868,23 +799,23 @@ static int iwl3945_tx_reset(struct iwl_priv *priv)
{
/* bypass mode */
iwl_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
/* RA 0 is active */
iwl_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
iwl_legacy_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
/* all 6 fifo are active */
iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
iwl_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
iwl_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
iwl_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
iwl_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
iwl_legacy_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
iwl_legacy_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
iwl_write_direct32(priv, FH39_TSSR_CBB_BASE,
iwl_legacy_write_direct32(priv, FH39_TSSR_CBB_BASE,
priv->_3945.shared_phys);
iwl_write_direct32(priv, FH39_TSSR_MSG_CONFIG,
iwl_legacy_write_direct32(priv, FH39_TSSR_MSG_CONFIG,
FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
@ -910,7 +841,7 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
iwl3945_hw_txq_ctx_free(priv);
/* allocate tx queue structure */
rc = iwl_alloc_txq_mem(priv);
rc = iwl_legacy_alloc_txq_mem(priv);
if (rc)
return rc;
@ -923,8 +854,8 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ?
TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
txq_id);
rc = iwl_legacy_tx_queue_init(priv, &priv->txq[txq_id],
slots_num, txq_id);
if (rc) {
IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
goto error;
@ -941,21 +872,23 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
/*
* Start up 3945's basic functionality after it has been reset
* (e.g. after platform boot, or shutdown via iwl_apm_stop())
* (e.g. after platform boot, or shutdown via iwl_legacy_apm_stop())
* NOTE: This does not load uCode nor start the embedded processor
*/
static int iwl3945_apm_init(struct iwl_priv *priv)
{
int ret = iwl_apm_init(priv);
int ret = iwl_legacy_apm_init(priv);
/* Clear APMG (NIC's internal power management) interrupts */
iwl_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
iwl_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
iwl_legacy_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
iwl_legacy_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
/* Reset radio chip */
iwl_set_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
iwl_legacy_set_bits_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_RESET_REQ);
udelay(5);
iwl_clear_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
iwl_legacy_clear_bits_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_RESET_REQ);
return ret;
}
@ -977,17 +910,17 @@ static void iwl3945_nic_config(struct iwl_priv *priv)
IWL_DEBUG_INFO(priv, "RTP type\n");
else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n");
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
} else {
IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n");
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
}
if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n");
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
} else
IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n");
@ -995,24 +928,24 @@ static void iwl3945_nic_config(struct iwl_priv *priv)
if ((eeprom->board_revision & 0xF0) == 0xD0) {
IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
eeprom->board_revision);
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
} else {
IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
eeprom->board_revision);
iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
}
if (eeprom->almgor_m_version <= 1) {
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n",
eeprom->almgor_m_version);
} else {
IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n",
eeprom->almgor_m_version);
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
}
spin_unlock_irqrestore(&priv->lock, flags);
@ -1040,7 +973,7 @@ int iwl3945_hw_nic_init(struct iwl_priv *priv)
/* Allocate the RX queue, or reset if it is already allocated */
if (!rxq->bd) {
rc = iwl_rx_queue_alloc(priv);
rc = iwl_legacy_rx_queue_alloc(priv);
if (rc) {
IWL_ERR(priv, "Unable to initialize Rx queue\n");
return -ENOMEM;
@ -1055,10 +988,10 @@ int iwl3945_hw_nic_init(struct iwl_priv *priv)
/* Look at using this instead:
rxq->need_update = 1;
iwl_rx_queue_update_write_ptr(priv, rxq);
iwl_legacy_rx_queue_update_write_ptr(priv, rxq);
*/
iwl_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7);
iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7);
rc = iwl3945_txq_ctx_reset(priv);
if (rc)
@ -1083,12 +1016,12 @@ void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv)
for (txq_id = 0; txq_id < priv->hw_params.max_txq_num;
txq_id++)
if (txq_id == IWL39_CMD_QUEUE_NUM)
iwl_cmd_queue_free(priv);
iwl_legacy_cmd_queue_free(priv);
else
iwl_tx_queue_free(priv, txq_id);
iwl_legacy_tx_queue_free(priv, txq_id);
/* free tx queue structure */
iwl_free_txq_mem(priv);
iwl_legacy_txq_mem(priv);
}
void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
@ -1096,12 +1029,12 @@ void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
int txq_id;
/* stop SCD */
iwl_write_prph(priv, ALM_SCD_MODE_REG, 0);
iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0);
iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0);
iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0);
/* reset TFD queues */
for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS,
FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
1000);
@ -1168,12 +1101,12 @@ static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
#define IWL_TEMPERATURE_LIMIT_TIMER 6
/**
* is_temp_calib_needed - determines if new calibration is needed
* iwl3945_is_temp_calib_needed - determines if new calibration is needed
*
* records new temperature in tx_mgr->temperature.
* replaces tx_mgr->last_temperature *only* if calib needed
* (assumes caller will actually do the calibration!). */
static int is_temp_calib_needed(struct iwl_priv *priv)
static int iwl3945_is_temp_calib_needed(struct iwl_priv *priv)
{
int temp_diff;
@ -1404,9 +1337,6 @@ static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_in
* based on eeprom channel data) for this channel. */
power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
/* further limit to user's max power preference.
* FIXME: Other spectrum management power limitations do not
* seem to apply?? */
power = min(power, priv->tx_power_user_lmt);
scan_power_info->requested_power = power;
@ -1460,7 +1390,7 @@ static int iwl3945_send_tx_power(struct iwl_priv *priv)
chan = le16_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.channel);
txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
ch_info = iwl_get_channel_info(priv, priv->band, chan);
ch_info = iwl_legacy_get_channel_info(priv, priv->band, chan);
if (!ch_info) {
IWL_ERR(priv,
"Failed to get channel info for channel %d [%d]\n",
@ -1468,7 +1398,7 @@ static int iwl3945_send_tx_power(struct iwl_priv *priv)
return -EINVAL;
}
if (!is_channel_valid(ch_info)) {
if (!iwl_legacy_is_channel_valid(ch_info)) {
IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on "
"non-Tx channel.\n");
return 0;
@ -1503,7 +1433,7 @@ static int iwl3945_send_tx_power(struct iwl_priv *priv)
txpower.power[i].rate);
}
return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
return iwl_legacy_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
sizeof(struct iwl3945_txpowertable_cmd),
&txpower);
@ -1637,7 +1567,7 @@ static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
/* set up new Tx power info for each and every channel, 2.4 and 5.x */
for (i = 0; i < priv->channel_count; i++) {
ch_info = &priv->channel_info[i];
a_band = is_channel_a_band(ch_info);
a_band = iwl_legacy_is_channel_a_band(ch_info);
/* Get this chnlgrp's factory calibration temperature */
ref_temp = (s16)eeprom->groups[ch_info->group_index].
@ -1703,7 +1633,7 @@ int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
for (i = 0; i < priv->channel_count; i++) {
ch_info = &priv->channel_info[i];
a_band = is_channel_a_band(ch_info);
a_band = iwl_legacy_is_channel_a_band(ch_info);
/* find minimum power of all user and regulatory constraints
* (does not consider h/w clipping limitations) */
@ -1719,7 +1649,7 @@ int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
/* update txpower settings for all channels,
* send to NIC if associated. */
is_temp_calib_needed(priv);
iwl3945_is_temp_calib_needed(priv);
iwl3945_hw_reg_comp_txpower_temp(priv);
return 0;
@ -1737,8 +1667,8 @@ static int iwl3945_send_rxon_assoc(struct iwl_priv *priv,
.flags = CMD_WANT_SKB,
.data = &rxon_assoc,
};
const struct iwl_rxon_cmd *rxon1 = &ctx->staging;
const struct iwl_rxon_cmd *rxon2 = &ctx->active;
const struct iwl_legacy_rxon_cmd *rxon1 = &ctx->staging;
const struct iwl_legacy_rxon_cmd *rxon2 = &ctx->active;
if ((rxon1->flags == rxon2->flags) &&
(rxon1->filter_flags == rxon2->filter_flags) &&
@ -1754,7 +1684,7 @@ static int iwl3945_send_rxon_assoc(struct iwl_priv *priv,
rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
rxon_assoc.reserved = 0;
rc = iwl_send_cmd_sync(priv, &cmd);
rc = iwl_legacy_send_cmd_sync(priv, &cmd);
if (rc)
return rc;
@ -1764,7 +1694,7 @@ static int iwl3945_send_rxon_assoc(struct iwl_priv *priv,
rc = -EIO;
}
iwl_free_pages(priv, cmd.reply_page);
iwl_legacy_free_pages(priv, cmd.reply_page);
return rc;
}
@ -1788,7 +1718,7 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EINVAL;
if (!iwl_is_alive(priv))
if (!iwl_legacy_is_alive(priv))
return -1;
/* always get timestamp with Rx frame */
@ -1799,7 +1729,7 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
staging_rxon->flags |= iwl3945_get_antenna_flags(priv);
rc = iwl_check_rxon_cmd(priv, ctx);
rc = iwl_legacy_check_rxon_cmd(priv, ctx);
if (rc) {
IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
return -EINVAL;
@ -1808,8 +1738,9 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
/* If we don't need to send a full RXON, we can use
* iwl3945_rxon_assoc_cmd which is used to reconfigure filter
* and other flags for the current radio configuration. */
if (!iwl_full_rxon_required(priv, &priv->contexts[IWL_RXON_CTX_BSS])) {
rc = iwl_send_rxon_assoc(priv,
if (!iwl_legacy_full_rxon_required(priv,
&priv->contexts[IWL_RXON_CTX_BSS])) {
rc = iwl_legacy_send_rxon_assoc(priv,
&priv->contexts[IWL_RXON_CTX_BSS]);
if (rc) {
IWL_ERR(priv, "Error setting RXON_ASSOC "
@ -1826,7 +1757,7 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
* an RXON_ASSOC and the new config wants the associated mask enabled,
* we must clear the associated from the active configuration
* before we apply the new config */
if (iwl_is_associated(priv, IWL_RXON_CTX_BSS) && new_assoc) {
if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS) && new_assoc) {
IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
@ -1836,7 +1767,7 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
*/
active_rxon->reserved4 = 0;
active_rxon->reserved5 = 0;
rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON,
sizeof(struct iwl3945_rxon_cmd),
&priv->contexts[IWL_RXON_CTX_BSS].active);
@ -1848,9 +1779,10 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
"configuration (%d).\n", rc);
return rc;
}
iwl_clear_ucode_stations(priv,
iwl_legacy_clear_ucode_stations(priv,
&priv->contexts[IWL_RXON_CTX_BSS]);
iwl_legacy_restore_stations(priv,
&priv->contexts[IWL_RXON_CTX_BSS]);
iwl_restore_stations(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
}
IWL_DEBUG_INFO(priv, "Sending RXON\n"
@ -1868,10 +1800,10 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
staging_rxon->reserved4 = 0;
staging_rxon->reserved5 = 0;
iwl_set_rxon_hwcrypto(priv, ctx, !iwl3945_mod_params.sw_crypto);
iwl_legacy_set_rxon_hwcrypto(priv, ctx, !iwl3945_mod_params.sw_crypto);
/* Apply the new configuration */
rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON,
sizeof(struct iwl3945_rxon_cmd),
staging_rxon);
if (rc) {
@ -1882,14 +1814,15 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
if (!new_assoc) {
iwl_clear_ucode_stations(priv,
iwl_legacy_clear_ucode_stations(priv,
&priv->contexts[IWL_RXON_CTX_BSS]);
iwl_restore_stations(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
iwl_legacy_restore_stations(priv,
&priv->contexts[IWL_RXON_CTX_BSS]);
}
/* If we issue a new RXON command which required a tune then we must
* send a new TXPOWER command or we won't be able to Tx any frames */
rc = iwl_set_tx_power(priv, priv->tx_power_next, true);
rc = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true);
if (rc) {
IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
return rc;
@ -1919,7 +1852,7 @@ void iwl3945_reg_txpower_periodic(struct iwl_priv *priv)
{
/* This will kick in the "brute force"
* iwl3945_hw_reg_comp_txpower_temp() below */
if (!is_temp_calib_needed(priv))
if (!iwl3945_is_temp_calib_needed(priv))
goto reschedule;
/* Set up a new set of temp-adjusted TxPowers, send to NIC.
@ -1966,7 +1899,7 @@ static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv,
u8 grp_channel;
/* Find the group index for the channel ... don't use index 1(?) */
if (is_channel_a_band(ch_info)) {
if (iwl_legacy_is_channel_a_band(ch_info)) {
for (group = 1; group < 5; group++) {
grp_channel = ch_grp[group].group_channel;
if (ch_info->channel <= grp_channel) {
@ -2146,8 +2079,8 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
/* initialize Tx power info for each and every channel, 2.4 and 5.x */
for (i = 0, ch_info = priv->channel_info; i < priv->channel_count;
i++, ch_info++) {
a_band = is_channel_a_band(ch_info);
if (!is_channel_valid(ch_info))
a_band = iwl_legacy_is_channel_a_band(ch_info);
if (!iwl_legacy_is_channel_valid(ch_info))
continue;
/* find this channel's channel group (*not* "band") index */
@ -2250,7 +2183,7 @@ int iwl3945_hw_rxq_stop(struct iwl_priv *priv)
{
int rc;
iwl_write_direct32(priv, FH39_RCSR_CONFIG(0), 0);
iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0), 0);
rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS,
FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
if (rc < 0)
@ -2267,10 +2200,10 @@ int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
iwl_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0);
iwl_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0);
iwl_legacy_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0);
iwl_legacy_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0);
iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id),
iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id),
FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
@ -2299,7 +2232,8 @@ static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len)
}
static u16 iwl3945_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
static u16 iwl3945_build_addsta_hcmd(const struct iwl_legacy_addsta_cmd *cmd,
u8 *data)
{
struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data;
addsta->mode = cmd->mode;
@ -2327,7 +2261,7 @@ static int iwl3945_add_bssid_station(struct iwl_priv *priv,
if (sta_id_r)
*sta_id_r = IWL_INVALID_STATION;
ret = iwl_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
if (ret) {
IWL_ERR(priv, "Unable to add station %pM\n", addr);
return ret;
@ -2362,7 +2296,7 @@ static int iwl3945_manage_ibss_station(struct iwl_priv *priv,
return 0;
}
return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,
return iwl_legacy_remove_station(priv, vif_priv->ibss_bssid_sta_id,
vif->bss_conf.bssid);
}
@ -2413,7 +2347,7 @@ int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
* 1M CCK rates */
if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
iwl_is_associated(priv, IWL_RXON_CTX_BSS)) {
iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
index = IWL_FIRST_CCK_RATE;
for (i = IWL_RATE_6M_INDEX_TABLE;
@ -2434,14 +2368,14 @@ int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
/* Update the rate scaling for control frame Tx */
rate_cmd.table_id = 0;
rc = iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
&rate_cmd);
if (rc)
return rc;
/* Update the rate scaling for data frame Tx */
rate_cmd.table_id = 1;
return iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
return iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
&rate_cmd);
}
@ -2541,11 +2475,11 @@ static int iwl3945_verify_bsm(struct iwl_priv *priv)
IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
/* verify BSM SRAM contents */
val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG);
val = iwl_legacy_read_prph(priv, BSM_WR_DWCOUNT_REG);
for (reg = BSM_SRAM_LOWER_BOUND;
reg < BSM_SRAM_LOWER_BOUND + len;
reg += sizeof(u32), image++) {
val = iwl_read_prph(priv, reg);
val = iwl_legacy_read_prph(priv, reg);
if (val != le32_to_cpu(*image)) {
IWL_ERR(priv, "BSM uCode verification failed at "
"addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
@ -2578,7 +2512,7 @@ static int iwl3945_verify_bsm(struct iwl_priv *priv)
*/
static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
{
_iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
_iwl_legacy_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
return 0;
}
@ -2649,16 +2583,16 @@ static int iwl3945_load_bsm(struct iwl_priv *priv)
inst_len = priv->ucode_init.len;
data_len = priv->ucode_init_data.len;
iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
/* Fill BSM memory with bootstrap instructions */
for (reg_offset = BSM_SRAM_LOWER_BOUND;
reg_offset < BSM_SRAM_LOWER_BOUND + len;
reg_offset += sizeof(u32), image++)
_iwl_write_prph(priv, reg_offset,
_iwl_legacy_write_prph(priv, reg_offset,
le32_to_cpu(*image));
rc = iwl3945_verify_bsm(priv);
@ -2666,19 +2600,19 @@ static int iwl3945_load_bsm(struct iwl_priv *priv)
return rc;
/* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
iwl_write_prph(priv, BSM_WR_MEM_DST_REG,
iwl_legacy_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
iwl_legacy_write_prph(priv, BSM_WR_MEM_DST_REG,
IWL39_RTC_INST_LOWER_BOUND);
iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
iwl_legacy_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
/* Load bootstrap code into instruction SRAM now,
* to prepare to load "initialize" uCode */
iwl_write_prph(priv, BSM_WR_CTRL_REG,
iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG,
BSM_WR_CTRL_REG_BIT_START);
/* Wait for load of bootstrap uCode to finish */
for (i = 0; i < 100; i++) {
done = iwl_read_prph(priv, BSM_WR_CTRL_REG);
done = iwl_legacy_read_prph(priv, BSM_WR_CTRL_REG);
if (!(done & BSM_WR_CTRL_REG_BIT_START))
break;
udelay(10);
@ -2692,7 +2626,7 @@ static int iwl3945_load_bsm(struct iwl_priv *priv)
/* Enable future boot loads whenever power management unit triggers it
* (e.g. when powering back up after power-save shutdown) */
iwl_write_prph(priv, BSM_WR_CTRL_REG,
iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG,
BSM_WR_CTRL_REG_BIT_START_EN);
return 0;
@ -2701,7 +2635,6 @@ static int iwl3945_load_bsm(struct iwl_priv *priv)
static struct iwl_hcmd_ops iwl3945_hcmd = {
.rxon_assoc = iwl3945_send_rxon_assoc,
.commit_rxon = iwl3945_commit_rxon,
.send_bt_config = iwl_send_bt_config,
};
static struct iwl_lib_ops iwl3945_lib = {
@ -2727,13 +2660,9 @@ static struct iwl_lib_ops iwl3945_lib = {
},
.acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
.release_semaphore = iwl3945_eeprom_release_semaphore,
.query_addr = iwlcore_eeprom_query_addr,
},
.send_tx_power = iwl3945_send_tx_power,
.is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr,
.isr_ops = {
.isr = iwl_isr_legacy,
},
.debugfs_ops = {
.rx_stats_read = iwl3945_ucode_rx_stats_read,
@ -2751,7 +2680,6 @@ static const struct iwl_legacy_ops iwl3945_legacy_ops = {
static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
.get_hcmd_size = iwl3945_get_hcmd_size,
.build_addsta_hcmd = iwl3945_build_addsta_hcmd,
.tx_cmd_protection = iwl_legacy_tx_cmd_protection,
.request_scan = iwl3945_request_scan,
.post_scan = iwl3945_post_scan,
};
@ -2771,13 +2699,10 @@ static struct iwl_base_params iwl3945_base_params = {
.pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
.set_l0s = false,
.use_bsm = true,
.use_isr_legacy = true,
.led_compensation = 64,
.broken_powersave = true,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 512,
.tx_power_by_driver = true,
};
static struct iwl_cfg iwl3945_bg_cfg = {

12
drivers/net/wireless/iwlwifi/iwl-3945.h → drivers/net/wireless/iwlegacy/iwl-3945.h
View File

@ -1,6 +1,6 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@ -108,7 +108,7 @@ struct iwl3945_rs_sta {
/*
* The common struct MUST be first because it is shared between
* 3945 and agn!
* 3945 and 4965!
*/
struct iwl3945_sta_priv {
struct iwl_station_priv_common common;
@ -201,7 +201,7 @@ struct iwl3945_ibss_seq {
/******************************************************************************
*
* Functions implemented in iwl-base.c which are forward declared here
* Functions implemented in iwl3945-base.c which are forward declared here
* for use by iwl-*.c
*
*****************************************************************************/
@ -209,7 +209,7 @@ extern int iwl3945_calc_db_from_ratio(int sig_ratio);
extern void iwl3945_rx_replenish(void *data);
extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
struct ieee80211_hdr *hdr,int left);
struct ieee80211_hdr *hdr, int left);
extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
char **buf, bool display);
extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
@ -217,7 +217,7 @@ extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
/******************************************************************************
*
* Functions implemented in iwl-[34]*.c which are forward declared here
* for use by iwl-base.c
* for use by iwl3945-base.c
*
* NOTE: The implementation of these functions are hardware specific
* which is why they are in the hardware specific files (vs. iwl-base.c)
@ -283,7 +283,7 @@ extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
extern struct ieee80211_ops iwl3945_hw_ops;
/*
* Forward declare iwl-3945.c functions for iwl-base.c
* Forward declare iwl-3945.c functions for iwl3945-base.c
*/
extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);

967
drivers/net/wireless/iwlegacy/iwl-4965-calib.c Normal file
View File

@ -0,0 +1,967 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-4965-calib.h"
/*****************************************************************************
* INIT calibrations framework
*****************************************************************************/
struct statistics_general_data {
u32 beacon_silence_rssi_a;
u32 beacon_silence_rssi_b;
u32 beacon_silence_rssi_c;
u32 beacon_energy_a;
u32 beacon_energy_b;
u32 beacon_energy_c;
};
void iwl4965_calib_free_results(struct iwl_priv *priv)
{
int i;
for (i = 0; i < IWL_CALIB_MAX; i++) {
kfree(priv->calib_results[i].buf);
priv->calib_results[i].buf = NULL;
priv->calib_results[i].buf_len = 0;
}
}
/*****************************************************************************
* RUNTIME calibrations framework
*****************************************************************************/
/* "false alarms" are signals that our DSP tries to lock onto,
* but then determines that they are either noise, or transmissions
* from a distant wireless network (also "noise", really) that get
* "stepped on" by stronger transmissions within our own network.
* This algorithm attempts to set a sensitivity level that is high
* enough to receive all of our own network traffic, but not so
* high that our DSP gets too busy trying to lock onto non-network
* activity/noise. */
static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
u32 norm_fa,
u32 rx_enable_time,
struct statistics_general_data *rx_info)
{
u32 max_nrg_cck = 0;
int i = 0;
u8 max_silence_rssi = 0;
u32 silence_ref = 0;
u8 silence_rssi_a = 0;
u8 silence_rssi_b = 0;
u8 silence_rssi_c = 0;
u32 val;
/* "false_alarms" values below are cross-multiplications to assess the
* numbers of false alarms within the measured period of actual Rx
* (Rx is off when we're txing), vs the min/max expected false alarms
* (some should be expected if rx is sensitive enough) in a
* hypothetical listening period of 200 time units (TU), 204.8 msec:
*
* MIN_FA/fixed-time < false_alarms/actual-rx-time < MAX_FA/beacon-time
*
* */
u32 false_alarms = norm_fa * 200 * 1024;
u32 max_false_alarms = MAX_FA_CCK * rx_enable_time;
u32 min_false_alarms = MIN_FA_CCK * rx_enable_time;
struct iwl_sensitivity_data *data = NULL;
const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
data = &(priv->sensitivity_data);
data->nrg_auto_corr_silence_diff = 0;
/* Find max silence rssi among all 3 receivers.
* This is background noise, which may include transmissions from other
* networks, measured during silence before our network's beacon */
silence_rssi_a = (u8)((rx_info->beacon_silence_rssi_a &
ALL_BAND_FILTER) >> 8);
silence_rssi_b = (u8)((rx_info->beacon_silence_rssi_b &
ALL_BAND_FILTER) >> 8);
silence_rssi_c = (u8)((rx_info->beacon_silence_rssi_c &
ALL_BAND_FILTER) >> 8);
val = max(silence_rssi_b, silence_rssi_c);
max_silence_rssi = max(silence_rssi_a, (u8) val);
/* Store silence rssi in 20-beacon history table */
data->nrg_silence_rssi[data->nrg_silence_idx] = max_silence_rssi;
data->nrg_silence_idx++;
if (data->nrg_silence_idx >= NRG_NUM_PREV_STAT_L)
data->nrg_silence_idx = 0;
/* Find max silence rssi across 20 beacon history */
for (i = 0; i < NRG_NUM_PREV_STAT_L; i++) {
val = data->nrg_silence_rssi[i];
silence_ref = max(silence_ref, val);
}
IWL_DEBUG_CALIB(priv, "silence a %u, b %u, c %u, 20-bcn max %u\n",
silence_rssi_a, silence_rssi_b, silence_rssi_c,
silence_ref);
/* Find max rx energy (min value!) among all 3 receivers,
* measured during beacon frame.
* Save it in 10-beacon history table. */
i = data->nrg_energy_idx;
val = min(rx_info->beacon_energy_b, rx_info->beacon_energy_c);
data->nrg_value[i] = min(rx_info->beacon_energy_a, val);
data->nrg_energy_idx++;
if (data->nrg_energy_idx >= 10)
data->nrg_energy_idx = 0;
/* Find min rx energy (max value) across 10 beacon history.
* This is the minimum signal level that we want to receive well.
* Add backoff (margin so we don't miss slightly lower energy frames).
* This establishes an upper bound (min value) for energy threshold. */
max_nrg_cck = data->nrg_value[0];
for (i = 1; i < 10; i++)
max_nrg_cck = (u32) max(max_nrg_cck, (data->nrg_value[i]));
max_nrg_cck += 6;
IWL_DEBUG_CALIB(priv, "rx energy a %u, b %u, c %u, 10-bcn max/min %u\n",
rx_info->beacon_energy_a, rx_info->beacon_energy_b,
rx_info->beacon_energy_c, max_nrg_cck - 6);
/* Count number of consecutive beacons with fewer-than-desired
* false alarms. */
if (false_alarms < min_false_alarms)
data->num_in_cck_no_fa++;
else
data->num_in_cck_no_fa = 0;
IWL_DEBUG_CALIB(priv, "consecutive bcns with few false alarms = %u\n",
data->num_in_cck_no_fa);
/* If we got too many false alarms this time, reduce sensitivity */
if ((false_alarms > max_false_alarms) &&
(data->auto_corr_cck > AUTO_CORR_MAX_TH_CCK)) {
IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u\n",
false_alarms, max_false_alarms);
IWL_DEBUG_CALIB(priv, "... reducing sensitivity\n");
data->nrg_curr_state = IWL_FA_TOO_MANY;
/* Store for "fewer than desired" on later beacon */
data->nrg_silence_ref = silence_ref;
/* increase energy threshold (reduce nrg value)
* to decrease sensitivity */
data->nrg_th_cck = data->nrg_th_cck - NRG_STEP_CCK;
/* Else if we got fewer than desired, increase sensitivity */
} else if (false_alarms < min_false_alarms) {
data->nrg_curr_state = IWL_FA_TOO_FEW;
/* Compare silence level with silence level for most recent
* healthy number or too many false alarms */
data->nrg_auto_corr_silence_diff = (s32)data->nrg_silence_ref -
(s32)silence_ref;
IWL_DEBUG_CALIB(priv,
"norm FA %u < min FA %u, silence diff %d\n",
false_alarms, min_false_alarms,
data->nrg_auto_corr_silence_diff);
/* Increase value to increase sensitivity, but only if:
* 1a) previous beacon did *not* have *too many* false alarms
* 1b) AND there's a significant difference in Rx levels
* from a previous beacon with too many, or healthy # FAs
* OR 2) We've seen a lot of beacons (100) with too few
* false alarms */
if ((data->nrg_prev_state != IWL_FA_TOO_MANY) &&
((data->nrg_auto_corr_silence_diff > NRG_DIFF) ||
(data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) {
IWL_DEBUG_CALIB(priv, "... increasing sensitivity\n");
/* Increase nrg value to increase sensitivity */
val = data->nrg_th_cck + NRG_STEP_CCK;
data->nrg_th_cck = min((u32)ranges->min_nrg_cck, val);
} else {
IWL_DEBUG_CALIB(priv,
"... but not changing sensitivity\n");
}
/* Else we got a healthy number of false alarms, keep status quo */
} else {
IWL_DEBUG_CALIB(priv, " FA in safe zone\n");
data->nrg_curr_state = IWL_FA_GOOD_RANGE;
/* Store for use in "fewer than desired" with later beacon */
data->nrg_silence_ref = silence_ref;
/* If previous beacon had too many false alarms,
* give it some extra margin by reducing sensitivity again
* (but don't go below measured energy of desired Rx) */
if (IWL_FA_TOO_MANY == data->nrg_prev_state) {
IWL_DEBUG_CALIB(priv, "... increasing margin\n");
if (data->nrg_th_cck > (max_nrg_cck + NRG_MARGIN))
data->nrg_th_cck -= NRG_MARGIN;
else
data->nrg_th_cck = max_nrg_cck;
}
}
/* Make sure the energy threshold does not go above the measured
* energy of the desired Rx signals (reduced by backoff margin),
* or else we might start missing Rx frames.
* Lower value is higher energy, so we use max()!
*/
data->nrg_th_cck = max(max_nrg_cck, data->nrg_th_cck);
IWL_DEBUG_CALIB(priv, "new nrg_th_cck %u\n", data->nrg_th_cck);
data->nrg_prev_state = data->nrg_curr_state;
/* Auto-correlation CCK algorithm */
if (false_alarms > min_false_alarms) {
/* increase auto_corr values to decrease sensitivity
* so the DSP won't be disturbed by the noise
*/
if (data->auto_corr_cck < AUTO_CORR_MAX_TH_CCK)
data->auto_corr_cck = AUTO_CORR_MAX_TH_CCK + 1;
else {
val = data->auto_corr_cck + AUTO_CORR_STEP_CCK;
data->auto_corr_cck =
min((u32)ranges->auto_corr_max_cck, val);
}
val = data->auto_corr_cck_mrc + AUTO_CORR_STEP_CCK;
data->auto_corr_cck_mrc =
min((u32)ranges->auto_corr_max_cck_mrc, val);
} else if ((false_alarms < min_false_alarms) &&
((data->nrg_auto_corr_silence_diff > NRG_DIFF) ||
(data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) {
/* Decrease auto_corr values to increase sensitivity */
val = data->auto_corr_cck - AUTO_CORR_STEP_CCK;
data->auto_corr_cck =
max((u32)ranges->auto_corr_min_cck, val);
val = data->auto_corr_cck_mrc - AUTO_CORR_STEP_CCK;
data->auto_corr_cck_mrc =
max((u32)ranges->auto_corr_min_cck_mrc, val);
}
return 0;
}
static int iwl4965_sens_auto_corr_ofdm(struct iwl_priv *priv,
u32 norm_fa,
u32 rx_enable_time)
{
u32 val;
u32 false_alarms = norm_fa * 200 * 1024;
u32 max_false_alarms = MAX_FA_OFDM * rx_enable_time;
u32 min_false_alarms = MIN_FA_OFDM * rx_enable_time;
struct iwl_sensitivity_data *data = NULL;
const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
data = &(priv->sensitivity_data);
/* If we got too many false alarms this time, reduce sensitivity */
if (false_alarms > max_false_alarms) {
IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u)\n",
false_alarms, max_false_alarms);
val = data->auto_corr_ofdm + AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm =
min((u32)ranges->auto_corr_max_ofdm, val);
val = data->auto_corr_ofdm_mrc + AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_mrc =
min((u32)ranges->auto_corr_max_ofdm_mrc, val);
val = data->auto_corr_ofdm_x1 + AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_x1 =
min((u32)ranges->auto_corr_max_ofdm_x1, val);
val = data->auto_corr_ofdm_mrc_x1 + AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_mrc_x1 =
min((u32)ranges->auto_corr_max_ofdm_mrc_x1, val);
}
/* Else if we got fewer than desired, increase sensitivity */
else if (false_alarms < min_false_alarms) {
IWL_DEBUG_CALIB(priv, "norm FA %u < min FA %u\n",
false_alarms, min_false_alarms);
val = data->auto_corr_ofdm - AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm =
max((u32)ranges->auto_corr_min_ofdm, val);
val = data->auto_corr_ofdm_mrc - AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_mrc =
max((u32)ranges->auto_corr_min_ofdm_mrc, val);
val = data->auto_corr_ofdm_x1 - AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_x1 =
max((u32)ranges->auto_corr_min_ofdm_x1, val);
val = data->auto_corr_ofdm_mrc_x1 - AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_mrc_x1 =
max((u32)ranges->auto_corr_min_ofdm_mrc_x1, val);
} else {
IWL_DEBUG_CALIB(priv, "min FA %u < norm FA %u < max FA %u OK\n",
min_false_alarms, false_alarms, max_false_alarms);
}
return 0;
}
static void iwl4965_prepare_legacy_sensitivity_tbl(struct iwl_priv *priv,
struct iwl_sensitivity_data *data,
__le16 *tbl)
{
tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX] =
cpu_to_le16((u16)data->auto_corr_ofdm);
tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX] =
cpu_to_le16((u16)data->auto_corr_ofdm_mrc);
tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX] =
cpu_to_le16((u16)data->auto_corr_ofdm_x1);
tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX] =
cpu_to_le16((u16)data->auto_corr_ofdm_mrc_x1);
tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX] =
cpu_to_le16((u16)data->auto_corr_cck);
tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX] =
cpu_to_le16((u16)data->auto_corr_cck_mrc);
tbl[HD_MIN_ENERGY_CCK_DET_INDEX] =
cpu_to_le16((u16)data->nrg_th_cck);
tbl[HD_MIN_ENERGY_OFDM_DET_INDEX] =
cpu_to_le16((u16)data->nrg_th_ofdm);
tbl[HD_BARKER_CORR_TH_ADD_MIN_INDEX] =
cpu_to_le16(data->barker_corr_th_min);
tbl[HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX] =
cpu_to_le16(data->barker_corr_th_min_mrc);
tbl[HD_OFDM_ENERGY_TH_IN_INDEX] =
cpu_to_le16(data->nrg_th_cca);
IWL_DEBUG_CALIB(priv, "ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n",
data->auto_corr_ofdm, data->auto_corr_ofdm_mrc,
data->auto_corr_ofdm_x1, data->auto_corr_ofdm_mrc_x1,
data->nrg_th_ofdm);
IWL_DEBUG_CALIB(priv, "cck: ac %u mrc %u thresh %u\n",
data->auto_corr_cck, data->auto_corr_cck_mrc,
data->nrg_th_cck);
}
/* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
static int iwl4965_sensitivity_write(struct iwl_priv *priv)
{
struct iwl_sensitivity_cmd cmd;
struct iwl_sensitivity_data *data = NULL;
struct iwl_host_cmd cmd_out = {
.id = SENSITIVITY_CMD,
.len = sizeof(struct iwl_sensitivity_cmd),
.flags = CMD_ASYNC,
.data = &cmd,
};
data = &(priv->sensitivity_data);
memset(&cmd, 0, sizeof(cmd));
iwl4965_prepare_legacy_sensitivity_tbl(priv, data, &cmd.table[0]);
/* Update uCode's "work" table, and copy it to DSP */
cmd.control = SENSITIVITY_CMD_CONTROL_WORK_TABLE;
/* Don't send command to uCode if nothing has changed */
if (!memcmp(&cmd.table[0], &(priv->sensitivity_tbl[0]),
sizeof(u16)*HD_TABLE_SIZE)) {
IWL_DEBUG_CALIB(priv, "No change in SENSITIVITY_CMD\n");
return 0;
}
/* Copy table for comparison next time */
memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
sizeof(u16)*HD_TABLE_SIZE);
return iwl_legacy_send_cmd(priv, &cmd_out);
}
void iwl4965_init_sensitivity(struct iwl_priv *priv)
{
int ret = 0;
int i;
struct iwl_sensitivity_data *data = NULL;
const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
if (priv->disable_sens_cal)
return;
IWL_DEBUG_CALIB(priv, "Start iwl4965_init_sensitivity\n");
/* Clear driver's sensitivity algo data */
data = &(priv->sensitivity_data);
if (ranges == NULL)
return;
memset(data, 0, sizeof(struct iwl_sensitivity_data));
data->num_in_cck_no_fa = 0;
data->nrg_curr_state = IWL_FA_TOO_MANY;
data->nrg_prev_state = IWL_FA_TOO_MANY;
data->nrg_silence_ref = 0;
data->nrg_silence_idx = 0;
data->nrg_energy_idx = 0;
for (i = 0; i < 10; i++)
data->nrg_value[i] = 0;
for (i = 0; i < NRG_NUM_PREV_STAT_L; i++)
data->nrg_silence_rssi[i] = 0;
data->auto_corr_ofdm = ranges->auto_corr_min_ofdm;
data->auto_corr_ofdm_mrc = ranges->auto_corr_min_ofdm_mrc;
data->auto_corr_ofdm_x1 = ranges->auto_corr_min_ofdm_x1;
data->auto_corr_ofdm_mrc_x1 = ranges->auto_corr_min_ofdm_mrc_x1;
data->auto_corr_cck = AUTO_CORR_CCK_MIN_VAL_DEF;
data->auto_corr_cck_mrc = ranges->auto_corr_min_cck_mrc;
data->nrg_th_cck = ranges->nrg_th_cck;
data->nrg_th_ofdm = ranges->nrg_th_ofdm;
data->barker_corr_th_min = ranges->barker_corr_th_min;
data->barker_corr_th_min_mrc = ranges->barker_corr_th_min_mrc;
data->nrg_th_cca = ranges->nrg_th_cca;
data->last_bad_plcp_cnt_ofdm = 0;
data->last_fa_cnt_ofdm = 0;
data->last_bad_plcp_cnt_cck = 0;
data->last_fa_cnt_cck = 0;
ret |= iwl4965_sensitivity_write(priv);
IWL_DEBUG_CALIB(priv, "<<return 0x%X\n", ret);
}
void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp)
{
u32 rx_enable_time;
u32 fa_cck;
u32 fa_ofdm;
u32 bad_plcp_cck;
u32 bad_plcp_ofdm;
u32 norm_fa_ofdm;
u32 norm_fa_cck;
struct iwl_sensitivity_data *data = NULL;
struct statistics_rx_non_phy *rx_info;
struct statistics_rx_phy *ofdm, *cck;
unsigned long flags;
struct statistics_general_data statis;
if (priv->disable_sens_cal)
return;
data = &(priv->sensitivity_data);
if (!iwl_legacy_is_any_associated(priv)) {
IWL_DEBUG_CALIB(priv, "<< - not associated\n");
return;
}
spin_lock_irqsave(&priv->lock, flags);
rx_info = &(((struct iwl_notif_statistics *)resp)->rx.general);
ofdm = &(((struct iwl_notif_statistics *)resp)->rx.ofdm);
cck = &(((struct iwl_notif_statistics *)resp)->rx.cck);
if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
IWL_DEBUG_CALIB(priv, "<< invalid data.\n");
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
/* Extract Statistics: */
rx_enable_time = le32_to_cpu(rx_info->channel_load);
fa_cck = le32_to_cpu(cck->false_alarm_cnt);
fa_ofdm = le32_to_cpu(ofdm->false_alarm_cnt);
bad_plcp_cck = le32_to_cpu(cck->plcp_err);
bad_plcp_ofdm = le32_to_cpu(ofdm->plcp_err);
statis.beacon_silence_rssi_a =
le32_to_cpu(rx_info->beacon_silence_rssi_a);
statis.beacon_silence_rssi_b =
le32_to_cpu(rx_info->beacon_silence_rssi_b);
statis.beacon_silence_rssi_c =
le32_to_cpu(rx_info->beacon_silence_rssi_c);
statis.beacon_energy_a =
le32_to_cpu(rx_info->beacon_energy_a);
statis.beacon_energy_b =
le32_to_cpu(rx_info->beacon_energy_b);
statis.beacon_energy_c =
le32_to_cpu(rx_info->beacon_energy_c);
spin_unlock_irqrestore(&priv->lock, flags);
IWL_DEBUG_CALIB(priv, "rx_enable_time = %u usecs\n", rx_enable_time);
if (!rx_enable_time) {
IWL_DEBUG_CALIB(priv, "<< RX Enable Time == 0!\n");
return;
}
/* These statistics increase monotonically, and do not reset
* at each beacon. Calculate difference from last value, or just
* use the new statistics value if it has reset or wrapped around. */
if (data->last_bad_plcp_cnt_cck > bad_plcp_cck)
data->last_bad_plcp_cnt_cck = bad_plcp_cck;
else {
bad_plcp_cck -= data->last_bad_plcp_cnt_cck;
data->last_bad_plcp_cnt_cck += bad_plcp_cck;
}
if (data->last_bad_plcp_cnt_ofdm > bad_plcp_ofdm)
data->last_bad_plcp_cnt_ofdm = bad_plcp_ofdm;
else {
bad_plcp_ofdm -= data->last_bad_plcp_cnt_ofdm;
data->last_bad_plcp_cnt_ofdm += bad_plcp_ofdm;
}
if (data->last_fa_cnt_ofdm > fa_ofdm)
data->last_fa_cnt_ofdm = fa_ofdm;
else {
fa_ofdm -= data->last_fa_cnt_ofdm;
data->last_fa_cnt_ofdm += fa_ofdm;
}
if (data->last_fa_cnt_cck > fa_cck)
data->last_fa_cnt_cck = fa_cck;
else {
fa_cck -= data->last_fa_cnt_cck;
data->last_fa_cnt_cck += fa_cck;
}
/* Total aborted signal locks */
norm_fa_ofdm = fa_ofdm + bad_plcp_ofdm;
norm_fa_cck = fa_cck + bad_plcp_cck;
IWL_DEBUG_CALIB(priv,
"cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck,
bad_plcp_cck, fa_ofdm, bad_plcp_ofdm);
iwl4965_sens_auto_corr_ofdm(priv, norm_fa_ofdm, rx_enable_time);
iwl4965_sens_energy_cck(priv, norm_fa_cck, rx_enable_time, &statis);
iwl4965_sensitivity_write(priv);
}
static inline u8 iwl4965_find_first_chain(u8 mask)
{
if (mask & ANT_A)
return CHAIN_A;
if (mask & ANT_B)
return CHAIN_B;
return CHAIN_C;
}
/**
* Run disconnected antenna algorithm to find out which antennas are
* disconnected.
*/
static void
iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig,
struct iwl_chain_noise_data *data)
{
u32 active_chains = 0;
u32 max_average_sig;
u16 max_average_sig_antenna_i;
u8 num_tx_chains;
u8 first_chain;
u16 i = 0;
average_sig[0] = data->chain_signal_a /
priv->cfg->base_params->chain_noise_num_beacons;
average_sig[1] = data->chain_signal_b /
priv->cfg->base_params->chain_noise_num_beacons;
average_sig[2] = data->chain_signal_c /
priv->cfg->base_params->chain_noise_num_beacons;
if (average_sig[0] >= average_sig[1]) {
max_average_sig = average_sig[0];
max_average_sig_antenna_i = 0;
active_chains = (1 << max_average_sig_antenna_i);
} else {
max_average_sig = average_sig[1];
max_average_sig_antenna_i = 1;
active_chains = (1 << max_average_sig_antenna_i);
}
if (average_sig[2] >= max_average_sig) {
max_average_sig = average_sig[2];
max_average_sig_antenna_i = 2;
active_chains = (1 << max_average_sig_antenna_i);
}
IWL_DEBUG_CALIB(priv, "average_sig: a %d b %d c %d\n",
average_sig[0], average_sig[1], average_sig[2]);
IWL_DEBUG_CALIB(priv, "max_average_sig = %d, antenna %d\n",
max_average_sig, max_average_sig_antenna_i);
/* Compare signal strengths for all 3 receivers. */
for (i = 0; i < NUM_RX_CHAINS; i++) {
if (i != max_average_sig_antenna_i) {
s32 rssi_delta = (max_average_sig - average_sig[i]);
/* If signal is very weak, compared with
* strongest, mark it as disconnected. */
if (rssi_delta > MAXIMUM_ALLOWED_PATHLOSS)
data->disconn_array[i] = 1;
else
active_chains |= (1 << i);
IWL_DEBUG_CALIB(priv, "i = %d rssiDelta = %d "
"disconn_array[i] = %d\n",
i, rssi_delta, data->disconn_array[i]);
}
}
/*
* The above algorithm sometimes fails when the ucode
* reports 0 for all chains. It's not clear why that
* happens to start with, but it is then causing trouble
* because this can make us enable more chains than the
* hardware really has.
*
* To be safe, simply mask out any chains that we know
* are not on the device.
*/
active_chains &= priv->hw_params.valid_rx_ant;
num_tx_chains = 0;
for (i = 0; i < NUM_RX_CHAINS; i++) {
/* loops on all the bits of
* priv->hw_setting.valid_tx_ant */
u8 ant_msk = (1 << i);
if (!(priv->hw_params.valid_tx_ant & ant_msk))
continue;
num_tx_chains++;
if (data->disconn_array[i] == 0)
/* there is a Tx antenna connected */
break;
if (num_tx_chains == priv->hw_params.tx_chains_num &&
data->disconn_array[i]) {
/*
* If all chains are disconnected
* connect the first valid tx chain
*/
first_chain =
iwl4965_find_first_chain(priv->cfg->valid_tx_ant);
data->disconn_array[first_chain] = 0;
active_chains |= BIT(first_chain);
IWL_DEBUG_CALIB(priv, "All Tx chains are disconnected \
W/A - declare %d as connected\n",
first_chain);
break;
}
}
if (active_chains != priv->hw_params.valid_rx_ant &&
active_chains != priv->chain_noise_data.active_chains)
IWL_DEBUG_CALIB(priv,
"Detected that not all antennas are connected! "
"Connected: %#x, valid: %#x.\n",
active_chains, priv->hw_params.valid_rx_ant);
/* Save for use within RXON, TX, SCAN commands, etc. */
data->active_chains = active_chains;
IWL_DEBUG_CALIB(priv, "active_chains (bitwise) = 0x%x\n",
active_chains);
}
static void iwl4965_gain_computation(struct iwl_priv *priv,
u32 *average_noise,
u16 min_average_noise_antenna_i,
u32 min_average_noise,
u8 default_chain)
{
int i, ret;
struct iwl_chain_noise_data *data = &priv->chain_noise_data;
data->delta_gain_code[min_average_noise_antenna_i] = 0;
for (i = default_chain; i < NUM_RX_CHAINS; i++) {
s32 delta_g = 0;
if (!(data->disconn_array[i]) &&
(data->delta_gain_code[i] ==
CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) {
delta_g = average_noise[i] - min_average_noise;
data->delta_gain_code[i] = (u8)((delta_g * 10) / 15);
data->delta_gain_code[i] =
min(data->delta_gain_code[i],
(u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
data->delta_gain_code[i] =
(data->delta_gain_code[i] | (1 << 2));
} else {
data->delta_gain_code[i] = 0;
}
}
IWL_DEBUG_CALIB(priv, "delta_gain_codes: a %d b %d c %d\n",
data->delta_gain_code[0],
data->delta_gain_code[1],
data->delta_gain_code[2]);
/* Differential gain gets sent to uCode only once */
if (!data->radio_write) {
struct iwl_calib_diff_gain_cmd cmd;
data->radio_write = 1;
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
cmd.diff_gain_a = data->delta_gain_code[0];
cmd.diff_gain_b = data->delta_gain_code[1];
cmd.diff_gain_c = data->delta_gain_code[2];
ret = iwl_legacy_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
sizeof(cmd), &cmd);
if (ret)
IWL_DEBUG_CALIB(priv, "fail sending cmd "
"REPLY_PHY_CALIBRATION_CMD\n");
/* TODO we might want recalculate
* rx_chain in rxon cmd */
/* Mark so we run this algo only once! */
data->state = IWL_CHAIN_NOISE_CALIBRATED;
}
}
/*
* Accumulate 16 beacons of signal and noise statistics for each of
* 3 receivers/antennas/rx-chains, then figure out:
* 1) Which antennas are connected.
* 2) Differential rx gain settings to balance the 3 receivers.
*/
void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp)
{
struct iwl_chain_noise_data *data = NULL;
u32 chain_noise_a;
u32 chain_noise_b;
u32 chain_noise_c;
u32 chain_sig_a;
u32 chain_sig_b;
u32 chain_sig_c;
u32 average_sig[NUM_RX_CHAINS] = {INITIALIZATION_VALUE};
u32 average_noise[NUM_RX_CHAINS] = {INITIALIZATION_VALUE};
u32 min_average_noise = MIN_AVERAGE_NOISE_MAX_VALUE;
u16 min_average_noise_antenna_i = INITIALIZATION_VALUE;
u16 i = 0;
u16 rxon_chnum = INITIALIZATION_VALUE;
u16 stat_chnum = INITIALIZATION_VALUE;
u8 rxon_band24;
u8 stat_band24;
unsigned long flags;
struct statistics_rx_non_phy *rx_info;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
if (priv->disable_chain_noise_cal)
return;
data = &(priv->chain_noise_data);
/*
* Accumulate just the first "chain_noise_num_beacons" after
* the first association, then we're done forever.
*/
if (data->state != IWL_CHAIN_NOISE_ACCUMULATE) {
if (data->state == IWL_CHAIN_NOISE_ALIVE)
IWL_DEBUG_CALIB(priv, "Wait for noise calib reset\n");
return;
}
spin_lock_irqsave(&priv->lock, flags);
rx_info = &(((struct iwl_notif_statistics *)stat_resp)->
rx.general);
if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
IWL_DEBUG_CALIB(priv, " << Interference data unavailable\n");
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
rxon_band24 = !!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK);
rxon_chnum = le16_to_cpu(ctx->staging.channel);
stat_band24 = !!(((struct iwl_notif_statistics *)
stat_resp)->flag &
STATISTICS_REPLY_FLG_BAND_24G_MSK);
stat_chnum = le32_to_cpu(((struct iwl_notif_statistics *)
stat_resp)->flag) >> 16;
/* Make sure we accumulate data for just the associated channel
* (even if scanning). */
if ((rxon_chnum != stat_chnum) || (rxon_band24 != stat_band24)) {
IWL_DEBUG_CALIB(priv, "Stats not from chan=%d, band24=%d\n",
rxon_chnum, rxon_band24);
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
/*
* Accumulate beacon statistics values across
* "chain_noise_num_beacons"
*/
chain_noise_a = le32_to_cpu(rx_info->beacon_silence_rssi_a) &
IN_BAND_FILTER;
chain_noise_b = le32_to_cpu(rx_info->beacon_silence_rssi_b) &
IN_BAND_FILTER;
chain_noise_c = le32_to_cpu(rx_info->beacon_silence_rssi_c) &
IN_BAND_FILTER;
chain_sig_a = le32_to_cpu(rx_info->beacon_rssi_a) & IN_BAND_FILTER;
chain_sig_b = le32_to_cpu(rx_info->beacon_rssi_b) & IN_BAND_FILTER;
chain_sig_c = le32_to_cpu(rx_info->beacon_rssi_c) & IN_BAND_FILTER;
spin_unlock_irqrestore(&priv->lock, flags);
data->beacon_count++;
data->chain_noise_a = (chain_noise_a + data->chain_noise_a);
data->chain_noise_b = (chain_noise_b + data->chain_noise_b);
data->chain_noise_c = (chain_noise_c + data->chain_noise_c);
data->chain_signal_a = (chain_sig_a + data->chain_signal_a);
data->chain_signal_b = (chain_sig_b + data->chain_signal_b);
data->chain_signal_c = (chain_sig_c + data->chain_signal_c);
IWL_DEBUG_CALIB(priv, "chan=%d, band24=%d, beacon=%d\n",
rxon_chnum, rxon_band24, data->beacon_count);
IWL_DEBUG_CALIB(priv, "chain_sig: a %d b %d c %d\n",
chain_sig_a, chain_sig_b, chain_sig_c);
IWL_DEBUG_CALIB(priv, "chain_noise: a %d b %d c %d\n",
chain_noise_a, chain_noise_b, chain_noise_c);
/* If this is the "chain_noise_num_beacons", determine:
* 1) Disconnected antennas (using signal strengths)
* 2) Differential gain (using silence noise) to balance receivers */
if (data->beacon_count !=
priv->cfg->base_params->chain_noise_num_beacons)
return;
/* Analyze signal for disconnected antenna */
iwl4965_find_disconn_antenna(priv, average_sig, data);
/* Analyze noise for rx balance */
average_noise[0] = data->chain_noise_a /
priv->cfg->base_params->chain_noise_num_beacons;
average_noise[1] = data->chain_noise_b /
priv->cfg->base_params->chain_noise_num_beacons;
average_noise[2] = data->chain_noise_c /
priv->cfg->base_params->chain_noise_num_beacons;
for (i = 0; i < NUM_RX_CHAINS; i++) {
if (!(data->disconn_array[i]) &&
(average_noise[i] <= min_average_noise)) {
/* This means that chain i is active and has
* lower noise values so far: */
min_average_noise = average_noise[i];
min_average_noise_antenna_i = i;
}
}
IWL_DEBUG_CALIB(priv, "average_noise: a %d b %d c %d\n",
average_noise[0], average_noise[1],
average_noise[2]);
IWL_DEBUG_CALIB(priv, "min_average_noise = %d, antenna %d\n",
min_average_noise, min_average_noise_antenna_i);
iwl4965_gain_computation(priv, average_noise,
min_average_noise_antenna_i, min_average_noise,
iwl4965_find_first_chain(priv->cfg->valid_rx_ant));
/* Some power changes may have been made during the calibration.
* Update and commit the RXON
*/
if (priv->cfg->ops->lib->update_chain_flags)
priv->cfg->ops->lib->update_chain_flags(priv);
data->state = IWL_CHAIN_NOISE_DONE;
iwl_legacy_power_update_mode(priv, false);
}
void iwl4965_reset_run_time_calib(struct iwl_priv *priv)
{
int i;
memset(&(priv->sensitivity_data), 0,
sizeof(struct iwl_sensitivity_data));
memset(&(priv->chain_noise_data), 0,
sizeof(struct iwl_chain_noise_data));
for (i = 0; i < NUM_RX_CHAINS; i++)
priv->chain_noise_data.delta_gain_code[i] =
CHAIN_NOISE_DELTA_GAIN_INIT_VAL;
/* Ask for statistics now, the uCode will send notification
* periodically after association */
iwl_legacy_send_statistics_request(priv, CMD_ASYNC, true);
}

30
drivers/net/wireless/iwlwifi/iwl-legacy.h → drivers/net/wireless/iwlegacy/iwl-4965-calib.h
View File

@ -5,7 +5,7 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -30,7 +30,7 @@
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -59,21 +59,17 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_4965_calib_h__
#define __iwl_4965_calib_h__
#ifndef __iwl_legacy_h__
#define __iwl_legacy_h__
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-commands.h"
/* mac80211 handlers */
int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed);
void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw);
void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changes);
void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
struct ieee80211_tx_info *info,
__le16 fc, __le32 *tx_flags);
void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp);
void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp);
void iwl4965_init_sensitivity(struct iwl_priv *priv);
void iwl4965_reset_run_time_calib(struct iwl_priv *priv);
void iwl4965_calib_free_results(struct iwl_priv *priv);
irqreturn_t iwl_isr_legacy(int irq, void *data);
#endif /* __iwl_legacy_h__ */
#endif /* __iwl_4965_calib_h__ */

774
drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c Normal file
View File

@ -0,0 +1,774 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include "iwl-4965.h"
#include "iwl-4965-debugfs.h"
static const char *fmt_value = " %-30s %10u\n";
static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
static const char *fmt_header =
"%-32s current cumulative delta max\n";
static int iwl4965_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
{
int p = 0;
u32 flag;
flag = le32_to_cpu(priv->_4965.statistics.flag);
p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
if (flag & UCODE_STATISTICS_CLEAR_MSK)
p += scnprintf(buf + p, bufsz - p,
"\tStatistics have been cleared\n");
p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
(flag & UCODE_STATISTICS_FREQUENCY_MSK)
? "2.4 GHz" : "5.2 GHz");
p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
(flag & UCODE_STATISTICS_NARROW_BAND_MSK)
? "enabled" : "disabled");
return p;
}
ssize_t iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
int pos = 0;
char *buf;
int bufsz = sizeof(struct statistics_rx_phy) * 40 +
sizeof(struct statistics_rx_non_phy) * 40 +
sizeof(struct statistics_rx_ht_phy) * 40 + 400;
ssize_t ret;
struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
struct statistics_rx_non_phy *general, *accum_general;
struct statistics_rx_non_phy *delta_general, *max_general;
struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
if (!iwl_legacy_is_alive(priv))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
/*
* the statistic information display here is based on
* the last statistics notification from uCode
* might not reflect the current uCode activity
*/
ofdm = &priv->_4965.statistics.rx.ofdm;
cck = &priv->_4965.statistics.rx.cck;
general = &priv->_4965.statistics.rx.general;
ht = &priv->_4965.statistics.rx.ofdm_ht;
accum_ofdm = &priv->_4965.accum_statistics.rx.ofdm;
accum_cck = &priv->_4965.accum_statistics.rx.cck;
accum_general = &priv->_4965.accum_statistics.rx.general;
accum_ht = &priv->_4965.accum_statistics.rx.ofdm_ht;
delta_ofdm = &priv->_4965.delta_statistics.rx.ofdm;
delta_cck = &priv->_4965.delta_statistics.rx.cck;
delta_general = &priv->_4965.delta_statistics.rx.general;
delta_ht = &priv->_4965.delta_statistics.rx.ofdm_ht;
max_ofdm = &priv->_4965.max_delta.rx.ofdm;
max_cck = &priv->_4965.max_delta.rx.cck;
max_general = &priv->_4965.max_delta.rx.general;
max_ht = &priv->_4965.max_delta.rx.ofdm_ht;
pos += iwl4965_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_header, "Statistics_Rx - OFDM:");
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "ina_cnt:",
le32_to_cpu(ofdm->ina_cnt),
accum_ofdm->ina_cnt,
delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "fina_cnt:",
le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "plcp_err:",
le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
delta_ofdm->plcp_err, max_ofdm->plcp_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "crc32_err:",
le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
delta_ofdm->crc32_err, max_ofdm->crc32_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "overrun_err:",
le32_to_cpu(ofdm->overrun_err),
accum_ofdm->overrun_err, delta_ofdm->overrun_err,
max_ofdm->overrun_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "early_overrun_err:",
le32_to_cpu(ofdm->early_overrun_err),
accum_ofdm->early_overrun_err,
delta_ofdm->early_overrun_err,
max_ofdm->early_overrun_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "crc32_good:",
le32_to_cpu(ofdm->crc32_good),
accum_ofdm->crc32_good, delta_ofdm->crc32_good,
max_ofdm->crc32_good);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "false_alarm_cnt:",
le32_to_cpu(ofdm->false_alarm_cnt),
accum_ofdm->false_alarm_cnt,
delta_ofdm->false_alarm_cnt,
max_ofdm->false_alarm_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "fina_sync_err_cnt:",
le32_to_cpu(ofdm->fina_sync_err_cnt),
accum_ofdm->fina_sync_err_cnt,
delta_ofdm->fina_sync_err_cnt,
max_ofdm->fina_sync_err_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sfd_timeout:",
le32_to_cpu(ofdm->sfd_timeout),
accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
max_ofdm->sfd_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "fina_timeout:",
le32_to_cpu(ofdm->fina_timeout),
accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
max_ofdm->fina_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "unresponded_rts:",
le32_to_cpu(ofdm->unresponded_rts),
accum_ofdm->unresponded_rts,
delta_ofdm->unresponded_rts,
max_ofdm->unresponded_rts);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "rxe_frame_lmt_ovrun:",
le32_to_cpu(ofdm->rxe_frame_limit_overrun),
accum_ofdm->rxe_frame_limit_overrun,
delta_ofdm->rxe_frame_limit_overrun,
max_ofdm->rxe_frame_limit_overrun);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sent_ack_cnt:",
le32_to_cpu(ofdm->sent_ack_cnt),
accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
max_ofdm->sent_ack_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sent_cts_cnt:",
le32_to_cpu(ofdm->sent_cts_cnt),
accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
max_ofdm->sent_cts_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sent_ba_rsp_cnt:",
le32_to_cpu(ofdm->sent_ba_rsp_cnt),
accum_ofdm->sent_ba_rsp_cnt,
delta_ofdm->sent_ba_rsp_cnt,
max_ofdm->sent_ba_rsp_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "dsp_self_kill:",
le32_to_cpu(ofdm->dsp_self_kill),
accum_ofdm->dsp_self_kill,
delta_ofdm->dsp_self_kill,
max_ofdm->dsp_self_kill);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "mh_format_err:",
le32_to_cpu(ofdm->mh_format_err),
accum_ofdm->mh_format_err,
delta_ofdm->mh_format_err,
max_ofdm->mh_format_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "re_acq_main_rssi_sum:",
le32_to_cpu(ofdm->re_acq_main_rssi_sum),
accum_ofdm->re_acq_main_rssi_sum,
delta_ofdm->re_acq_main_rssi_sum,
max_ofdm->re_acq_main_rssi_sum);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_header, "Statistics_Rx - CCK:");
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "ina_cnt:",
le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
delta_cck->ina_cnt, max_cck->ina_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "fina_cnt:",
le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
delta_cck->fina_cnt, max_cck->fina_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "plcp_err:",
le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
delta_cck->plcp_err, max_cck->plcp_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "crc32_err:",
le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
delta_cck->crc32_err, max_cck->crc32_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "overrun_err:",
le32_to_cpu(cck->overrun_err),
accum_cck->overrun_err, delta_cck->overrun_err,
max_cck->overrun_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "early_overrun_err:",
le32_to_cpu(cck->early_overrun_err),
accum_cck->early_overrun_err,
delta_cck->early_overrun_err,
max_cck->early_overrun_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "crc32_good:",
le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
delta_cck->crc32_good, max_cck->crc32_good);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "false_alarm_cnt:",
le32_to_cpu(cck->false_alarm_cnt),
accum_cck->false_alarm_cnt,
delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "fina_sync_err_cnt:",
le32_to_cpu(cck->fina_sync_err_cnt),
accum_cck->fina_sync_err_cnt,
delta_cck->fina_sync_err_cnt,
max_cck->fina_sync_err_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sfd_timeout:",
le32_to_cpu(cck->sfd_timeout),
accum_cck->sfd_timeout, delta_cck->sfd_timeout,
max_cck->sfd_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "fina_timeout:",
le32_to_cpu(cck->fina_timeout),
accum_cck->fina_timeout, delta_cck->fina_timeout,
max_cck->fina_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "unresponded_rts:",
le32_to_cpu(cck->unresponded_rts),
accum_cck->unresponded_rts, delta_cck->unresponded_rts,
max_cck->unresponded_rts);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "rxe_frame_lmt_ovrun:",
le32_to_cpu(cck->rxe_frame_limit_overrun),
accum_cck->rxe_frame_limit_overrun,
delta_cck->rxe_frame_limit_overrun,
max_cck->rxe_frame_limit_overrun);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sent_ack_cnt:",
le32_to_cpu(cck->sent_ack_cnt),
accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
max_cck->sent_ack_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sent_cts_cnt:",
le32_to_cpu(cck->sent_cts_cnt),
accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
max_cck->sent_cts_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sent_ba_rsp_cnt:",
le32_to_cpu(cck->sent_ba_rsp_cnt),
accum_cck->sent_ba_rsp_cnt,
delta_cck->sent_ba_rsp_cnt,
max_cck->sent_ba_rsp_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "dsp_self_kill:",
le32_to_cpu(cck->dsp_self_kill),
accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
max_cck->dsp_self_kill);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "mh_format_err:",
le32_to_cpu(cck->mh_format_err),
accum_cck->mh_format_err, delta_cck->mh_format_err,
max_cck->mh_format_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "re_acq_main_rssi_sum:",
le32_to_cpu(cck->re_acq_main_rssi_sum),
accum_cck->re_acq_main_rssi_sum,
delta_cck->re_acq_main_rssi_sum,
max_cck->re_acq_main_rssi_sum);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_header, "Statistics_Rx - GENERAL:");
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "bogus_cts:",
le32_to_cpu(general->bogus_cts),
accum_general->bogus_cts, delta_general->bogus_cts,
max_general->bogus_cts);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "bogus_ack:",
le32_to_cpu(general->bogus_ack),
accum_general->bogus_ack, delta_general->bogus_ack,
max_general->bogus_ack);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "non_bssid_frames:",
le32_to_cpu(general->non_bssid_frames),
accum_general->non_bssid_frames,
delta_general->non_bssid_frames,
max_general->non_bssid_frames);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "filtered_frames:",
le32_to_cpu(general->filtered_frames),
accum_general->filtered_frames,
delta_general->filtered_frames,
max_general->filtered_frames);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "non_channel_beacons:",
le32_to_cpu(general->non_channel_beacons),
accum_general->non_channel_beacons,
delta_general->non_channel_beacons,
max_general->non_channel_beacons);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "channel_beacons:",
le32_to_cpu(general->channel_beacons),
accum_general->channel_beacons,
delta_general->channel_beacons,
max_general->channel_beacons);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "num_missed_bcon:",
le32_to_cpu(general->num_missed_bcon),
accum_general->num_missed_bcon,
delta_general->num_missed_bcon,
max_general->num_missed_bcon);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "adc_rx_saturation_time:",
le32_to_cpu(general->adc_rx_saturation_time),
accum_general->adc_rx_saturation_time,
delta_general->adc_rx_saturation_time,
max_general->adc_rx_saturation_time);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "ina_detect_search_tm:",
le32_to_cpu(general->ina_detection_search_time),
accum_general->ina_detection_search_time,
delta_general->ina_detection_search_time,
max_general->ina_detection_search_time);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_silence_rssi_a:",
le32_to_cpu(general->beacon_silence_rssi_a),
accum_general->beacon_silence_rssi_a,
delta_general->beacon_silence_rssi_a,
max_general->beacon_silence_rssi_a);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_silence_rssi_b:",
le32_to_cpu(general->beacon_silence_rssi_b),
accum_general->beacon_silence_rssi_b,
delta_general->beacon_silence_rssi_b,
max_general->beacon_silence_rssi_b);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_silence_rssi_c:",
le32_to_cpu(general->beacon_silence_rssi_c),
accum_general->beacon_silence_rssi_c,
delta_general->beacon_silence_rssi_c,
max_general->beacon_silence_rssi_c);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "interference_data_flag:",
le32_to_cpu(general->interference_data_flag),
accum_general->interference_data_flag,
delta_general->interference_data_flag,
max_general->interference_data_flag);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "channel_load:",
le32_to_cpu(general->channel_load),
accum_general->channel_load,
delta_general->channel_load,
max_general->channel_load);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "dsp_false_alarms:",
le32_to_cpu(general->dsp_false_alarms),
accum_general->dsp_false_alarms,
delta_general->dsp_false_alarms,
max_general->dsp_false_alarms);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_rssi_a:",
le32_to_cpu(general->beacon_rssi_a),
accum_general->beacon_rssi_a,
delta_general->beacon_rssi_a,
max_general->beacon_rssi_a);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_rssi_b:",
le32_to_cpu(general->beacon_rssi_b),
accum_general->beacon_rssi_b,
delta_general->beacon_rssi_b,
max_general->beacon_rssi_b);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_rssi_c:",
le32_to_cpu(general->beacon_rssi_c),
accum_general->beacon_rssi_c,
delta_general->beacon_rssi_c,
max_general->beacon_rssi_c);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_energy_a:",
le32_to_cpu(general->beacon_energy_a),
accum_general->beacon_energy_a,
delta_general->beacon_energy_a,
max_general->beacon_energy_a);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_energy_b:",
le32_to_cpu(general->beacon_energy_b),
accum_general->beacon_energy_b,
delta_general->beacon_energy_b,
max_general->beacon_energy_b);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "beacon_energy_c:",
le32_to_cpu(general->beacon_energy_c),
accum_general->beacon_energy_c,
delta_general->beacon_energy_c,
max_general->beacon_energy_c);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_header, "Statistics_Rx - OFDM_HT:");
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "plcp_err:",
le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
delta_ht->plcp_err, max_ht->plcp_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "overrun_err:",
le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
delta_ht->overrun_err, max_ht->overrun_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "early_overrun_err:",
le32_to_cpu(ht->early_overrun_err),
accum_ht->early_overrun_err,
delta_ht->early_overrun_err,
max_ht->early_overrun_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "crc32_good:",
le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
delta_ht->crc32_good, max_ht->crc32_good);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "crc32_err:",
le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
delta_ht->crc32_err, max_ht->crc32_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "mh_format_err:",
le32_to_cpu(ht->mh_format_err),
accum_ht->mh_format_err,
delta_ht->mh_format_err, max_ht->mh_format_err);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg_crc32_good:",
le32_to_cpu(ht->agg_crc32_good),
accum_ht->agg_crc32_good,
delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg_mpdu_cnt:",
le32_to_cpu(ht->agg_mpdu_cnt),
accum_ht->agg_mpdu_cnt,
delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg_cnt:",
le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
delta_ht->agg_cnt, max_ht->agg_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "unsupport_mcs:",
le32_to_cpu(ht->unsupport_mcs),
accum_ht->unsupport_mcs,
delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
ssize_t iwl4965_ucode_tx_stats_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
int pos = 0;
char *buf;
int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
ssize_t ret;
struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
if (!iwl_legacy_is_alive(priv))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
/* the statistic information display here is based on
* the last statistics notification from uCode
* might not reflect the current uCode activity
*/
tx = &priv->_4965.statistics.tx;
accum_tx = &priv->_4965.accum_statistics.tx;
delta_tx = &priv->_4965.delta_statistics.tx;
max_tx = &priv->_4965.max_delta.tx;
pos += iwl4965_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_header, "Statistics_Tx:");
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "preamble:",
le32_to_cpu(tx->preamble_cnt),
accum_tx->preamble_cnt,
delta_tx->preamble_cnt, max_tx->preamble_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "rx_detected_cnt:",
le32_to_cpu(tx->rx_detected_cnt),
accum_tx->rx_detected_cnt,
delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "bt_prio_defer_cnt:",
le32_to_cpu(tx->bt_prio_defer_cnt),
accum_tx->bt_prio_defer_cnt,
delta_tx->bt_prio_defer_cnt,
max_tx->bt_prio_defer_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "bt_prio_kill_cnt:",
le32_to_cpu(tx->bt_prio_kill_cnt),
accum_tx->bt_prio_kill_cnt,
delta_tx->bt_prio_kill_cnt,
max_tx->bt_prio_kill_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "few_bytes_cnt:",
le32_to_cpu(tx->few_bytes_cnt),
accum_tx->few_bytes_cnt,
delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "cts_timeout:",
le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
delta_tx->cts_timeout, max_tx->cts_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "ack_timeout:",
le32_to_cpu(tx->ack_timeout),
accum_tx->ack_timeout,
delta_tx->ack_timeout, max_tx->ack_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "expected_ack_cnt:",
le32_to_cpu(tx->expected_ack_cnt),
accum_tx->expected_ack_cnt,
delta_tx->expected_ack_cnt,
max_tx->expected_ack_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "actual_ack_cnt:",
le32_to_cpu(tx->actual_ack_cnt),
accum_tx->actual_ack_cnt,
delta_tx->actual_ack_cnt,
max_tx->actual_ack_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "dump_msdu_cnt:",
le32_to_cpu(tx->dump_msdu_cnt),
accum_tx->dump_msdu_cnt,
delta_tx->dump_msdu_cnt,
max_tx->dump_msdu_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "abort_nxt_frame_mismatch:",
le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
accum_tx->burst_abort_next_frame_mismatch_cnt,
delta_tx->burst_abort_next_frame_mismatch_cnt,
max_tx->burst_abort_next_frame_mismatch_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "abort_missing_nxt_frame:",
le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
accum_tx->burst_abort_missing_next_frame_cnt,
delta_tx->burst_abort_missing_next_frame_cnt,
max_tx->burst_abort_missing_next_frame_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "cts_timeout_collision:",
le32_to_cpu(tx->cts_timeout_collision),
accum_tx->cts_timeout_collision,
delta_tx->cts_timeout_collision,
max_tx->cts_timeout_collision);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "ack_ba_timeout_collision:",
le32_to_cpu(tx->ack_or_ba_timeout_collision),
accum_tx->ack_or_ba_timeout_collision,
delta_tx->ack_or_ba_timeout_collision,
max_tx->ack_or_ba_timeout_collision);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg ba_timeout:",
le32_to_cpu(tx->agg.ba_timeout),
accum_tx->agg.ba_timeout,
delta_tx->agg.ba_timeout,
max_tx->agg.ba_timeout);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg ba_resched_frames:",
le32_to_cpu(tx->agg.ba_reschedule_frames),
accum_tx->agg.ba_reschedule_frames,
delta_tx->agg.ba_reschedule_frames,
max_tx->agg.ba_reschedule_frames);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg scd_query_agg_frame:",
le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
accum_tx->agg.scd_query_agg_frame_cnt,
delta_tx->agg.scd_query_agg_frame_cnt,
max_tx->agg.scd_query_agg_frame_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg scd_query_no_agg:",
le32_to_cpu(tx->agg.scd_query_no_agg),
accum_tx->agg.scd_query_no_agg,
delta_tx->agg.scd_query_no_agg,
max_tx->agg.scd_query_no_agg);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg scd_query_agg:",
le32_to_cpu(tx->agg.scd_query_agg),
accum_tx->agg.scd_query_agg,
delta_tx->agg.scd_query_agg,
max_tx->agg.scd_query_agg);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg scd_query_mismatch:",
le32_to_cpu(tx->agg.scd_query_mismatch),
accum_tx->agg.scd_query_mismatch,
delta_tx->agg.scd_query_mismatch,
max_tx->agg.scd_query_mismatch);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg frame_not_ready:",
le32_to_cpu(tx->agg.frame_not_ready),
accum_tx->agg.frame_not_ready,
delta_tx->agg.frame_not_ready,
max_tx->agg.frame_not_ready);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg underrun:",
le32_to_cpu(tx->agg.underrun),
accum_tx->agg.underrun,
delta_tx->agg.underrun, max_tx->agg.underrun);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg bt_prio_kill:",
le32_to_cpu(tx->agg.bt_prio_kill),
accum_tx->agg.bt_prio_kill,
delta_tx->agg.bt_prio_kill,
max_tx->agg.bt_prio_kill);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "agg rx_ba_rsp_cnt:",
le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
accum_tx->agg.rx_ba_rsp_cnt,
delta_tx->agg.rx_ba_rsp_cnt,
max_tx->agg.rx_ba_rsp_cnt);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
ssize_t
iwl4965_ucode_general_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_priv *priv = file->private_data;
int pos = 0;
char *buf;
int bufsz = sizeof(struct statistics_general) * 10 + 300;
ssize_t ret;
struct statistics_general_common *general, *accum_general;
struct statistics_general_common *delta_general, *max_general;
struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
struct statistics_div *div, *accum_div, *delta_div, *max_div;
if (!iwl_legacy_is_alive(priv))
return -EAGAIN;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
/* the statistic information display here is based on
* the last statistics notification from uCode
* might not reflect the current uCode activity
*/
general = &priv->_4965.statistics.general.common;
dbg = &priv->_4965.statistics.general.common.dbg;
div = &priv->_4965.statistics.general.common.div;
accum_general = &priv->_4965.accum_statistics.general.common;
accum_dbg = &priv->_4965.accum_statistics.general.common.dbg;
accum_div = &priv->_4965.accum_statistics.general.common.div;
delta_general = &priv->_4965.delta_statistics.general.common;
max_general = &priv->_4965.max_delta.general.common;
delta_dbg = &priv->_4965.delta_statistics.general.common.dbg;
max_dbg = &priv->_4965.max_delta.general.common.dbg;
delta_div = &priv->_4965.delta_statistics.general.common.div;
max_div = &priv->_4965.max_delta.general.common.div;
pos += iwl4965_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_header, "Statistics_General:");
pos += scnprintf(buf + pos, bufsz - pos,
fmt_value, "temperature:",
le32_to_cpu(general->temperature));
pos += scnprintf(buf + pos, bufsz - pos,
fmt_value, "ttl_timestamp:",
le32_to_cpu(general->ttl_timestamp));
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "burst_check:",
le32_to_cpu(dbg->burst_check),
accum_dbg->burst_check,
delta_dbg->burst_check, max_dbg->burst_check);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "burst_count:",
le32_to_cpu(dbg->burst_count),
accum_dbg->burst_count,
delta_dbg->burst_count, max_dbg->burst_count);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "wait_for_silence_timeout_count:",
le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
accum_dbg->wait_for_silence_timeout_cnt,
delta_dbg->wait_for_silence_timeout_cnt,
max_dbg->wait_for_silence_timeout_cnt);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "sleep_time:",
le32_to_cpu(general->sleep_time),
accum_general->sleep_time,
delta_general->sleep_time, max_general->sleep_time);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "slots_out:",
le32_to_cpu(general->slots_out),
accum_general->slots_out,
delta_general->slots_out, max_general->slots_out);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "slots_idle:",
le32_to_cpu(general->slots_idle),
accum_general->slots_idle,
delta_general->slots_idle, max_general->slots_idle);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "tx_on_a:",
le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
delta_div->tx_on_a, max_div->tx_on_a);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "tx_on_b:",
le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
delta_div->tx_on_b, max_div->tx_on_b);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "exec_time:",
le32_to_cpu(div->exec_time), accum_div->exec_time,
delta_div->exec_time, max_div->exec_time);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "probe_time:",
le32_to_cpu(div->probe_time), accum_div->probe_time,
delta_div->probe_time, max_div->probe_time);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "rx_enable_counter:",
le32_to_cpu(general->rx_enable_counter),
accum_general->rx_enable_counter,
delta_general->rx_enable_counter,
max_general->rx_enable_counter);
pos += scnprintf(buf + pos, bufsz - pos,
fmt_table, "num_of_sos_states:",
le32_to_cpu(general->num_of_sos_states),
accum_general->num_of_sos_states,
delta_general->num_of_sos_states,
max_general->num_of_sos_states);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}

59
drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h Normal file
View File

@ -0,0 +1,59 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-debug.h"
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
ssize_t iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t iwl4965_ucode_tx_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t iwl4965_ucode_general_stats_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos);
#else
static ssize_t
iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
return 0;
}
static ssize_t
iwl4965_ucode_tx_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
return 0;
}
static ssize_t
iwl4965_ucode_general_stats_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
return 0;
}
#endif

154
drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c Normal file
View File

@ -0,0 +1,154 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <net/mac80211.h>
#include "iwl-commands.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-debug.h"
#include "iwl-4965.h"
#include "iwl-io.h"
/******************************************************************************
*
* EEPROM related functions
*
******************************************************************************/
/*
* The device's EEPROM semaphore prevents conflicts between driver and uCode
* when accessing the EEPROM; each access is a series of pulses to/from the
* EEPROM chip, not a single event, so even reads could conflict if they
* weren't arbitrated by the semaphore.
*/
int iwl4965_eeprom_acquire_semaphore(struct iwl_priv *priv)
{
u16 count;
int ret;
for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) {
/* Request semaphore */
iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
/* See if we got it */
ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
EEPROM_SEM_TIMEOUT);
if (ret >= 0) {
IWL_DEBUG_IO(priv,
"Acquired semaphore after %d tries.\n",
count+1);
return ret;
}
}
return ret;
}
void iwl4965_eeprom_release_semaphore(struct iwl_priv *priv)
{
iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
}
int iwl4965_eeprom_check_version(struct iwl_priv *priv)
{
u16 eeprom_ver;
u16 calib_ver;
eeprom_ver = iwl_legacy_eeprom_query16(priv, EEPROM_VERSION);
calib_ver = iwl_legacy_eeprom_query16(priv,
EEPROM_4965_CALIB_VERSION_OFFSET);
if (eeprom_ver < priv->cfg->eeprom_ver ||
calib_ver < priv->cfg->eeprom_calib_ver)
goto err;
IWL_INFO(priv, "device EEPROM VER=0x%x, CALIB=0x%x\n",
eeprom_ver, calib_ver);
return 0;
err:
IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x "
"CALIB=0x%x < 0x%x\n",
eeprom_ver, priv->cfg->eeprom_ver,
calib_ver, priv->cfg->eeprom_calib_ver);
return -EINVAL;
}
void iwl4965_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac)
{
const u8 *addr = iwl_legacy_eeprom_query_addr(priv,
EEPROM_MAC_ADDRESS);
memcpy(mac, addr, ETH_ALEN);
}

26
drivers/net/wireless/iwlwifi/iwl-4965-hw.h → drivers/net/wireless/iwlegacy/iwl-4965-hw.h
View File

@ -5,7 +5,7 @@
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -30,7 +30,7 @@
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -789,4 +789,26 @@ struct iwl4965_scd_bc_tbl {
u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)];
} __packed;
#define IWL4965_RTC_INST_LOWER_BOUND (0x000000)
/* RSSI to dBm */
#define IWL4965_RSSI_OFFSET 44
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
/* PCI register values */
#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
#define IWL4965_DEFAULT_TX_RETRY 15
/* Limit range of txpower output target to be between these values */
#define IWL4965_TX_POWER_TARGET_POWER_MIN (0) /* 0 dBm: 1 milliwatt */
/* EEPROM */
#define IWL4965_FIRST_AMPDU_QUEUE 10
#endif /* !__iwl_4965_hw_h__ */

74
drivers/net/wireless/iwlegacy/iwl-4965-led.c Normal file
View File

@ -0,0 +1,74 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>
#include "iwl-commands.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-4965-led.h"
/* Send led command */
static int
iwl4965_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
{
struct iwl_host_cmd cmd = {
.id = REPLY_LEDS_CMD,
.len = sizeof(struct iwl_led_cmd),
.data = led_cmd,
.flags = CMD_ASYNC,
.callback = NULL,
};
u32 reg;
reg = iwl_read32(priv, CSR_LED_REG);
if (reg != (reg & CSR_LED_BSM_CTRL_MSK))
iwl_write32(priv, CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK);
return iwl_legacy_send_cmd(priv, &cmd);
}
/* Set led register off */
void iwl4965_led_enable(struct iwl_priv *priv)
{
iwl_write32(priv, CSR_LED_REG, CSR_LED_REG_TRUN_ON);
}
const struct iwl_led_ops iwl4965_led_ops = {
.cmd = iwl4965_send_led_cmd,
};

33
drivers/net/wireless/iwlegacy/iwl-4965-led.h Normal file
View File

@ -0,0 +1,33 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_4965_led_h__
#define __iwl_4965_led_h__
extern const struct iwl_led_ops iwl4965_led_ops;
void iwl4965_led_enable(struct iwl_priv *priv);
#endif /* __iwl_4965_led_h__ */

1260
drivers/net/wireless/iwlegacy/iwl-4965-lib.c Normal file
View File

File diff suppressed because it is too large Load Diff

2870
drivers/net/wireless/iwlegacy/iwl-4965-rs.c Normal file
View File

File diff suppressed because it is too large Load Diff

291
drivers/net/wireless/iwlegacy/iwl-4965-rx.c Normal file
View File

@ -0,0 +1,291 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-4965-calib.h"
#include "iwl-sta.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
#include "iwl-4965-hw.h"
#include "iwl-4965.h"
void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_missed_beacon_notif *missed_beacon;
missed_beacon = &pkt->u.missed_beacon;
if (le32_to_cpu(missed_beacon->consecutive_missed_beacons) >
priv->missed_beacon_threshold) {
IWL_DEBUG_CALIB(priv,
"missed bcn cnsq %d totl %d rcd %d expctd %d\n",
le32_to_cpu(missed_beacon->consecutive_missed_beacons),
le32_to_cpu(missed_beacon->total_missed_becons),
le32_to_cpu(missed_beacon->num_recvd_beacons),
le32_to_cpu(missed_beacon->num_expected_beacons));
if (!test_bit(STATUS_SCANNING, &priv->status))
iwl4965_init_sensitivity(priv);
}
}
/* Calculate noise level, based on measurements during network silence just
* before arriving beacon. This measurement can be done only if we know
* exactly when to expect beacons, therefore only when we're associated. */
static void iwl4965_rx_calc_noise(struct iwl_priv *priv)
{
struct statistics_rx_non_phy *rx_info;
int num_active_rx = 0;
int total_silence = 0;
int bcn_silence_a, bcn_silence_b, bcn_silence_c;
int last_rx_noise;
rx_info = &(priv->_4965.statistics.rx.general);
bcn_silence_a =
le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
bcn_silence_b =
le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
bcn_silence_c =
le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
if (bcn_silence_a) {
total_silence += bcn_silence_a;
num_active_rx++;
}
if (bcn_silence_b) {
total_silence += bcn_silence_b;
num_active_rx++;
}
if (bcn_silence_c) {
total_silence += bcn_silence_c;
num_active_rx++;
}
/* Average among active antennas */
if (num_active_rx)
last_rx_noise = (total_silence / num_active_rx) - 107;
else
last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
IWL_DEBUG_CALIB(priv, "inband silence a %u, b %u, c %u, dBm %d\n",
bcn_silence_a, bcn_silence_b, bcn_silence_c,
last_rx_noise);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
/*
* based on the assumption of all statistics counter are in DWORD
* FIXME: This function is for debugging, do not deal with
* the case of counters roll-over.
*/
static void iwl4965_accumulative_statistics(struct iwl_priv *priv,
__le32 *stats)
{
int i, size;
__le32 *prev_stats;
u32 *accum_stats;
u32 *delta, *max_delta;
struct statistics_general_common *general, *accum_general;
struct statistics_tx *tx, *accum_tx;
prev_stats = (__le32 *)&priv->_4965.statistics;
accum_stats = (u32 *)&priv->_4965.accum_statistics;
size = sizeof(struct iwl_notif_statistics);
general = &priv->_4965.statistics.general.common;
accum_general = &priv->_4965.accum_statistics.general.common;
tx = &priv->_4965.statistics.tx;
accum_tx = &priv->_4965.accum_statistics.tx;
delta = (u32 *)&priv->_4965.delta_statistics;
max_delta = (u32 *)&priv->_4965.max_delta;
for (i = sizeof(__le32); i < size;
i += sizeof(__le32), stats++, prev_stats++, delta++,
max_delta++, accum_stats++) {
if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
*delta = (le32_to_cpu(*stats) -
le32_to_cpu(*prev_stats));
*accum_stats += *delta;
if (*delta > *max_delta)
*max_delta = *delta;
}
}
/* reset accumulative statistics for "no-counter" type statistics */
accum_general->temperature = general->temperature;
accum_general->ttl_timestamp = general->ttl_timestamp;
}
#endif
#define REG_RECALIB_PERIOD (60)
/**
* iwl4965_good_plcp_health - checks for plcp error.
*
* When the plcp error is exceeding the thresholds, reset the radio
* to improve the throughput.
*/
bool iwl4965_good_plcp_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
bool rc = true;
int combined_plcp_delta;
unsigned int plcp_msec;
unsigned long plcp_received_jiffies;
if (priv->cfg->base_params->plcp_delta_threshold ==
IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
return rc;
}
/*
* check for plcp_err and trigger radio reset if it exceeds
* the plcp error threshold plcp_delta.
*/
plcp_received_jiffies = jiffies;
plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
(long) priv->plcp_jiffies);
priv->plcp_jiffies = plcp_received_jiffies;
/*
* check to make sure plcp_msec is not 0 to prevent division
* by zero.
*/
if (plcp_msec) {
struct statistics_rx_phy *ofdm;
struct statistics_rx_ht_phy *ofdm_ht;
ofdm = &pkt->u.stats.rx.ofdm;
ofdm_ht = &pkt->u.stats.rx.ofdm_ht;
combined_plcp_delta =
(le32_to_cpu(ofdm->plcp_err) -
le32_to_cpu(priv->_4965.statistics.
rx.ofdm.plcp_err)) +
(le32_to_cpu(ofdm_ht->plcp_err) -
le32_to_cpu(priv->_4965.statistics.
rx.ofdm_ht.plcp_err));
if ((combined_plcp_delta > 0) &&
((combined_plcp_delta * 100) / plcp_msec) >
priv->cfg->base_params->plcp_delta_threshold) {
/*
* if plcp_err exceed the threshold,
* the following data is printed in csv format:
* Text: plcp_err exceeded %d,
* Received ofdm.plcp_err,
* Current ofdm.plcp_err,
* Received ofdm_ht.plcp_err,
* Current ofdm_ht.plcp_err,
* combined_plcp_delta,
* plcp_msec
*/
IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
"%u, %u, %u, %u, %d, %u mSecs\n",
priv->cfg->base_params->plcp_delta_threshold,
le32_to_cpu(ofdm->plcp_err),
le32_to_cpu(ofdm->plcp_err),
le32_to_cpu(ofdm_ht->plcp_err),
le32_to_cpu(ofdm_ht->plcp_err),
combined_plcp_delta, plcp_msec);
rc = false;
}
}
return rc;
}
void iwl4965_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
int change;
struct iwl_rx_packet *pkt = rxb_addr(rxb);
IWL_DEBUG_RX(priv,
"Statistics notification received (%d vs %d).\n",
(int)sizeof(struct iwl_notif_statistics),
le32_to_cpu(pkt->len_n_flags) &
FH_RSCSR_FRAME_SIZE_MSK);
change = ((priv->_4965.statistics.general.common.temperature !=
pkt->u.stats.general.common.temperature) ||
((priv->_4965.statistics.flag &
STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
(pkt->u.stats.flag &
STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
iwl4965_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
#endif
iwl_legacy_recover_from_statistics(priv, pkt);
memcpy(&priv->_4965.statistics, &pkt->u.stats,
sizeof(priv->_4965.statistics));
set_bit(STATUS_STATISTICS, &priv->status);
/* Reschedule the statistics timer to occur in
* REG_RECALIB_PERIOD seconds to ensure we get a
* thermal update even if the uCode doesn't give
* us one */
mod_timer(&priv->statistics_periodic, jiffies +
msecs_to_jiffies(REG_RECALIB_PERIOD * 1000));
if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
(pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
iwl4965_rx_calc_noise(priv);
queue_work(priv->workqueue, &priv->run_time_calib_work);
}
if (priv->cfg->ops->lib->temp_ops.temperature && change)
priv->cfg->ops->lib->temp_ops.temperature(priv);
}
void iwl4965_reply_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
if (le32_to_cpu(pkt->u.stats.flag) & UCODE_STATISTICS_CLEAR_MSK) {
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
memset(&priv->_4965.accum_statistics, 0,
sizeof(struct iwl_notif_statistics));
memset(&priv->_4965.delta_statistics, 0,
sizeof(struct iwl_notif_statistics));
memset(&priv->_4965.max_delta, 0,
sizeof(struct iwl_notif_statistics));
#endif
IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
}
iwl4965_rx_statistics(priv, rxb);
}

720
drivers/net/wireless/iwlegacy/iwl-4965-sta.c Normal file
View File

@ -0,0 +1,720 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <net/mac80211.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#include "iwl-4965.h"
static struct iwl_link_quality_cmd *
iwl4965_sta_alloc_lq(struct iwl_priv *priv, u8 sta_id)
{
int i, r;
struct iwl_link_quality_cmd *link_cmd;
u32 rate_flags = 0;
__le32 rate_n_flags;
link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL);
if (!link_cmd) {
IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n");
return NULL;
}
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (priv->band == IEEE80211_BAND_5GHZ)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
rate_flags |= iwl4965_first_antenna(priv->hw_params.valid_tx_ant) <<
RATE_MCS_ANT_POS;
rate_n_flags = iwl4965_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
link_cmd->general_params.single_stream_ant_msk =
iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
link_cmd->general_params.dual_stream_ant_msk =
priv->hw_params.valid_tx_ant &
~iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
if (!link_cmd->general_params.dual_stream_ant_msk) {
link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
} else if (iwl4965_num_of_ant(priv->hw_params.valid_tx_ant) == 2) {
link_cmd->general_params.dual_stream_ant_msk =
priv->hw_params.valid_tx_ant;
}
link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
link_cmd->agg_params.agg_time_limit =
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
link_cmd->sta_id = sta_id;
return link_cmd;
}
/*
* iwl4965_add_bssid_station - Add the special IBSS BSSID station
*
* Function sleeps.
*/
int
iwl4965_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
const u8 *addr, u8 *sta_id_r)
{
int ret;
u8 sta_id;
struct iwl_link_quality_cmd *link_cmd;
unsigned long flags;
if (sta_id_r)
*sta_id_r = IWL_INVALID_STATION;
ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
if (ret) {
IWL_ERR(priv, "Unable to add station %pM\n", addr);
return ret;
}
if (sta_id_r)
*sta_id_r = sta_id;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].used |= IWL_STA_LOCAL;
spin_unlock_irqrestore(&priv->sta_lock, flags);
/* Set up default rate scaling table in device's station table */
link_cmd = iwl4965_sta_alloc_lq(priv, sta_id);
if (!link_cmd) {
IWL_ERR(priv,
"Unable to initialize rate scaling for station %pM.\n",
addr);
return -ENOMEM;
}
ret = iwl_legacy_send_lq_cmd(priv, ctx, link_cmd, CMD_SYNC, true);
if (ret)
IWL_ERR(priv, "Link quality command failed (%d)\n", ret);
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
static int iwl4965_static_wepkey_cmd(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
bool send_if_empty)
{
int i, not_empty = 0;
u8 buff[sizeof(struct iwl_wep_cmd) +
sizeof(struct iwl_wep_key) * WEP_KEYS_MAX];
struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff;
size_t cmd_size = sizeof(struct iwl_wep_cmd);
struct iwl_host_cmd cmd = {
.id = ctx->wep_key_cmd,
.data = wep_cmd,
.flags = CMD_SYNC,
};
might_sleep();
memset(wep_cmd, 0, cmd_size +
(sizeof(struct iwl_wep_key) * WEP_KEYS_MAX));
for (i = 0; i < WEP_KEYS_MAX ; i++) {
wep_cmd->key[i].key_index = i;
if (ctx->wep_keys[i].key_size) {
wep_cmd->key[i].key_offset = i;
not_empty = 1;
} else {
wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
}
wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
ctx->wep_keys[i].key_size);
}
wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
wep_cmd->num_keys = WEP_KEYS_MAX;
cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX;
cmd.len = cmd_size;
if (not_empty || send_if_empty)
return iwl_legacy_send_cmd(priv, &cmd);
else
return 0;
}
int iwl4965_restore_default_wep_keys(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
lockdep_assert_held(&priv->mutex);
return iwl4965_static_wepkey_cmd(priv, ctx, false);
}
int iwl4965_remove_default_wep_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf)
{
int ret;
lockdep_assert_held(&priv->mutex);
IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
keyconf->keyidx);
memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
if (iwl_legacy_is_rfkill(priv)) {
IWL_DEBUG_WEP(priv,
"Not sending REPLY_WEPKEY command due to RFKILL.\n");
/* but keys in device are clear anyway so return success */
return 0;
}
ret = iwl4965_static_wepkey_cmd(priv, ctx, 1);
IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
keyconf->keyidx, ret);
return ret;
}
int iwl4965_set_default_wep_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf)
{
int ret;
lockdep_assert_held(&priv->mutex);
if (keyconf->keylen != WEP_KEY_LEN_128 &&
keyconf->keylen != WEP_KEY_LEN_64) {
IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen);
return -EINVAL;
}
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->hw_key_idx = HW_KEY_DEFAULT;
priv->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
keyconf->keylen);
ret = iwl4965_static_wepkey_cmd(priv, ctx, false);
IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n",
keyconf->keylen, keyconf->keyidx, ret);
return ret;
}
static int iwl4965_set_wep_dynamic_key_info(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
__le16 key_flags = 0;
struct iwl_legacy_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (keyconf->keylen == WEP_KEY_LEN_128)
key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
memcpy(priv->stations[sta_id].keyinfo.key,
keyconf->key, keyconf->keylen);
memcpy(&priv->stations[sta_id].sta.key.key[3],
keyconf->key, keyconf->keylen);
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
priv->stations[sta_id].sta.key.key_offset =
iwl_legacy_get_free_ucode_key_index(priv);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
priv->stations[sta_id].sta.key.key_flags = key_flags;
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
static int iwl4965_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
__le16 key_flags = 0;
struct iwl_legacy_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
keyconf->keylen);
memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
keyconf->keylen);
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
priv->stations[sta_id].sta.key.key_offset =
iwl_legacy_get_free_ucode_key_index(priv);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
priv->stations[sta_id].sta.key.key_flags = key_flags;
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
static int iwl4965_set_tkip_dynamic_key_info(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
int ret = 0;
__le16 key_flags = 0;
key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
priv->stations[sta_id].keyinfo.keylen = 16;
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
priv->stations[sta_id].sta.key.key_offset =
iwl_legacy_get_free_ucode_key_index(priv);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
priv->stations[sta_id].sta.key.key_flags = key_flags;
/* This copy is acutally not needed: we get the key with each TX */
memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
void iwl4965_update_tkip_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32, u16 *phase1key)
{
u8 sta_id;
unsigned long flags;
int i;
if (iwl_legacy_scan_cancel(priv)) {
/* cancel scan failed, just live w/ bad key and rely
briefly on SW decryption */
return;
}
sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, sta);
if (sta_id == IWL_INVALID_STATION)
return;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
for (i = 0; i < 5; i++)
priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
cpu_to_le16(phase1key[i]);
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
iwl_legacy_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
int iwl4965_remove_dynamic_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
u16 key_flags;
u8 keyidx;
struct iwl_legacy_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
ctx->key_mapping_keys--;
spin_lock_irqsave(&priv->sta_lock, flags);
key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags);
keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n",
keyconf->keyidx, sta_id);
if (keyconf->keyidx != keyidx) {
/* We need to remove a key with index different that the one
* in the uCode. This means that the key we need to remove has
* been replaced by another one with different index.
* Don't do anything and return ok
*/
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
IWL_WARN(priv, "Removing wrong key %d 0x%x\n",
keyconf->keyidx, key_flags);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset,
&priv->ucode_key_table))
IWL_ERR(priv, "index %d not used in uCode key table.\n",
priv->stations[sta_id].sta.key.key_offset);
memset(&priv->stations[sta_id].keyinfo, 0,
sizeof(struct iwl_hw_key));
memset(&priv->stations[sta_id].sta.key, 0,
sizeof(struct iwl4965_keyinfo));
priv->stations[sta_id].sta.key.key_flags =
STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
if (iwl_legacy_is_rfkill(priv)) {
IWL_DEBUG_WEP(priv,
"Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
int iwl4965_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf, u8 sta_id)
{
int ret;
lockdep_assert_held(&priv->mutex);
ctx->key_mapping_keys++;
keyconf->hw_key_idx = HW_KEY_DYNAMIC;
switch (keyconf->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
ret = iwl4965_set_ccmp_dynamic_key_info(priv, ctx,
keyconf, sta_id);
break;
case WLAN_CIPHER_SUITE_TKIP:
ret = iwl4965_set_tkip_dynamic_key_info(priv, ctx,
keyconf, sta_id);
break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
ret = iwl4965_set_wep_dynamic_key_info(priv, ctx,
keyconf, sta_id);
break;
default:
IWL_ERR(priv,
"Unknown alg: %s cipher = %x\n", __func__,
keyconf->cipher);
ret = -EINVAL;
}
IWL_DEBUG_WEP(priv,
"Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
keyconf->cipher, keyconf->keylen, keyconf->keyidx,
sta_id, ret);
return ret;
}
/**
* iwl4965_alloc_bcast_station - add broadcast station into driver's station table.
*
* This adds the broadcast station into the driver's station table
* and marks it driver active, so that it will be restored to the
* device at the next best time.
*/
int iwl4965_alloc_bcast_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
struct iwl_link_quality_cmd *link_cmd;
unsigned long flags;
u8 sta_id;
spin_lock_irqsave(&priv->sta_lock, flags);
sta_id = iwl_legacy_prep_station(priv, ctx, iwl_bcast_addr,
false, NULL);
if (sta_id == IWL_INVALID_STATION) {
IWL_ERR(priv, "Unable to prepare broadcast station\n");
spin_unlock_irqrestore(&priv->sta_lock, flags);
return -EINVAL;
}
priv->stations[sta_id].used |= IWL_STA_DRIVER_ACTIVE;
priv->stations[sta_id].used |= IWL_STA_BCAST;
spin_unlock_irqrestore(&priv->sta_lock, flags);
link_cmd = iwl4965_sta_alloc_lq(priv, sta_id);
if (!link_cmd) {
IWL_ERR(priv,
"Unable to initialize rate scaling for bcast station.\n");
return -ENOMEM;
}
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
/**
* iwl4965_update_bcast_station - update broadcast station's LQ command
*
* Only used by iwl4965. Placed here to have all bcast station management
* code together.
*/
static int iwl4965_update_bcast_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
unsigned long flags;
struct iwl_link_quality_cmd *link_cmd;
u8 sta_id = ctx->bcast_sta_id;
link_cmd = iwl4965_sta_alloc_lq(priv, sta_id);
if (!link_cmd) {
IWL_ERR(priv,
"Unable to initialize rate scaling for bcast station.\n");
return -ENOMEM;
}
spin_lock_irqsave(&priv->sta_lock, flags);
if (priv->stations[sta_id].lq)
kfree(priv->stations[sta_id].lq);
else
IWL_DEBUG_INFO(priv,
"Bcast station rate scaling has not been initialized yet.\n");
priv->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&priv->sta_lock, flags);
return 0;
}
int iwl4965_update_bcast_stations(struct iwl_priv *priv)
{
struct iwl_rxon_context *ctx;
int ret = 0;
for_each_context(priv, ctx) {
ret = iwl4965_update_bcast_station(priv, ctx);
if (ret)
break;
}
return ret;
}
/**
* iwl4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
*/
int iwl4965_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid)
{
unsigned long flags;
struct iwl_legacy_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
/* Remove "disable" flag, to enable Tx for this TID */
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
int iwl4965_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
int tid, u16 ssn)
{
unsigned long flags;
int sta_id;
struct iwl_legacy_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
sta_id = iwl_legacy_sta_id(sta);
if (sta_id == IWL_INVALID_STATION)
return -ENXIO;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.station_flags_msk = 0;
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
int iwl4965_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
int tid)
{
unsigned long flags;
int sta_id;
struct iwl_legacy_addsta_cmd sta_cmd;
lockdep_assert_held(&priv->mutex);
sta_id = iwl_legacy_sta_id(sta);
if (sta_id == IWL_INVALID_STATION) {
IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
return -ENXIO;
}
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.station_flags_msk = 0;
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
}
void
iwl4965_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt)
{
unsigned long flags;
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
priv->stations[sta_id].sta.sta.modify_mask =
STA_MODIFY_SLEEP_TX_COUNT_MSK;
priv->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
iwl_legacy_send_add_sta(priv,
&priv->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&priv->sta_lock, flags);
}

1359
drivers/net/wireless/iwlegacy/iwl-4965-tx.c Normal file
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166
drivers/net/wireless/iwlegacy/iwl-4965-ucode.c Normal file
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@ -0,0 +1,166 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
#include "iwl-4965-hw.h"
#include "iwl-4965.h"
#include "iwl-4965-calib.h"
#define IWL_AC_UNSET -1
/**
* iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
* using sample data 100 bytes apart. If these sample points are good,
* it's a pretty good bet that everything between them is good, too.
*/
static int
iwl4965_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
{
u32 val;
int ret = 0;
u32 errcnt = 0;
u32 i;
IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
/* read data comes through single port, auto-incr addr */
/* NOTE: Use the debugless read so we don't flood kernel log
* if IWL_DL_IO is set */
iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR,
i + IWL4965_RTC_INST_LOWER_BOUND);
val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
if (val != le32_to_cpu(*image)) {
ret = -EIO;
errcnt++;
if (errcnt >= 3)
break;
}
}
return ret;
}
/**
* iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
* looking at all data.
*/
static int iwl4965_verify_inst_full(struct iwl_priv *priv, __le32 *image,
u32 len)
{
u32 val;
u32 save_len = len;
int ret = 0;
u32 errcnt;
IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR,
IWL4965_RTC_INST_LOWER_BOUND);
errcnt = 0;
for (; len > 0; len -= sizeof(u32), image++) {
/* read data comes through single port, auto-incr addr */
/* NOTE: Use the debugless read so we don't flood kernel log
* if IWL_DL_IO is set */
val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
if (val != le32_to_cpu(*image)) {
IWL_ERR(priv, "uCode INST section is invalid at "
"offset 0x%x, is 0x%x, s/b 0x%x\n",
save_len - len, val, le32_to_cpu(*image));
ret = -EIO;
errcnt++;
if (errcnt >= 20)
break;
}
}
if (!errcnt)
IWL_DEBUG_INFO(priv,
"ucode image in INSTRUCTION memory is good\n");
return ret;
}
/**
* iwl4965_verify_ucode - determine which instruction image is in SRAM,
* and verify its contents
*/
int iwl4965_verify_ucode(struct iwl_priv *priv)
{
__le32 *image;
u32 len;
int ret;
/* Try bootstrap */
image = (__le32 *)priv->ucode_boot.v_addr;
len = priv->ucode_boot.len;
ret = iwl4965_verify_inst_sparse(priv, image, len);
if (!ret) {
IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
return 0;
}
/* Try initialize */
image = (__le32 *)priv->ucode_init.v_addr;
len = priv->ucode_init.len;
ret = iwl4965_verify_inst_sparse(priv, image, len);
if (!ret) {
IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
return 0;
}
/* Try runtime/protocol */
image = (__le32 *)priv->ucode_code.v_addr;
len = priv->ucode_code.len;
ret = iwl4965_verify_inst_sparse(priv, image, len);
if (!ret) {
IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
return 0;
}
IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
/* Since nothing seems to match, show first several data entries in
* instruction SRAM, so maybe visual inspection will give a clue.
* Selection of bootstrap image (vs. other images) is arbitrary. */
image = (__le32 *)priv->ucode_boot.v_addr;
len = priv->ucode_boot.len;
ret = iwl4965_verify_inst_full(priv, image, len);
return ret;
}

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drivers/net/wireless/iwlwifi/iwl-4965.c → drivers/net/wireless/iwlegacy/iwl-4965.c
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drivers/net/wireless/iwlegacy/iwl-4965.h Normal file
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@ -0,0 +1,282 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_4965_h__
#define __iwl_4965_h__
#include "iwl-dev.h"
/* configuration for the _4965 devices */
extern struct iwl_cfg iwl4965_cfg;
extern struct iwl_mod_params iwl4965_mod_params;
extern struct ieee80211_ops iwl4965_hw_ops;
/* tx queue */
void iwl4965_free_tfds_in_queue(struct iwl_priv *priv,
int sta_id, int tid, int freed);
/* RXON */
void iwl4965_set_rxon_chain(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
/* uCode */
int iwl4965_verify_ucode(struct iwl_priv *priv);
/* lib */
void iwl4965_check_abort_status(struct iwl_priv *priv,
u8 frame_count, u32 status);
void iwl4965_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwl4965_hw_nic_init(struct iwl_priv *priv);
int iwl4965_dump_fh(struct iwl_priv *priv, char **buf, bool display);
/* rx */
void iwl4965_rx_queue_restock(struct iwl_priv *priv);
void iwl4965_rx_replenish(struct iwl_priv *priv);
void iwl4965_rx_replenish_now(struct iwl_priv *priv);
void iwl4965_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwl4965_rxq_stop(struct iwl_priv *priv);
int iwl4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
void iwl4965_rx_reply_rx(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl4965_rx_handle(struct iwl_priv *priv);
/* tx */
void iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len, u8 reset, u8 pad);
int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
struct ieee80211_tx_info *info);
int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
int iwl4965_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid, u16 *ssn);
int iwl4965_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid);
int iwl4965_txq_check_empty(struct iwl_priv *priv,
int sta_id, u8 tid, int txq_id);
void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
int iwl4965_txq_ctx_alloc(struct iwl_priv *priv);
void iwl4965_txq_ctx_reset(struct iwl_priv *priv);
void iwl4965_txq_ctx_stop(struct iwl_priv *priv);
void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask);
/*
* Acquire priv->lock before calling this function !
*/
void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index);
/**
* iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
* @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
* @scd_retry: (1) Indicates queue will be used in aggregation mode
*
* NOTE: Acquire priv->lock before calling this function !
*/
void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
int tx_fifo_id, int scd_retry);
static inline u32 iwl4965_tx_status_to_mac80211(u32 status)
{
status &= TX_STATUS_MSK;
switch (status) {
case TX_STATUS_SUCCESS:
case TX_STATUS_DIRECT_DONE:
return IEEE80211_TX_STAT_ACK;
case TX_STATUS_FAIL_DEST_PS:
return IEEE80211_TX_STAT_TX_FILTERED;
default:
return 0;
}
}
static inline bool iwl4965_is_tx_success(u32 status)
{
status &= TX_STATUS_MSK;
return (status == TX_STATUS_SUCCESS) ||
(status == TX_STATUS_DIRECT_DONE);
}
u8 iwl4965_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
/* rx */
void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
bool iwl4965_good_plcp_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
void iwl4965_rx_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl4965_reply_statistics(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
/* scan */
int iwl4965_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
/* station mgmt */
int iwl4965_manage_ibss_station(struct iwl_priv *priv,
struct ieee80211_vif *vif, bool add);
/* hcmd */
int iwl4965_send_beacon_cmd(struct iwl_priv *priv);
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
const char *iwl4965_get_tx_fail_reason(u32 status);
#else
static inline const char *
iwl4965_get_tx_fail_reason(u32 status) { return ""; }
#endif
/* station management */
int iwl4965_alloc_bcast_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwl4965_add_bssid_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
const u8 *addr, u8 *sta_id_r);
int iwl4965_remove_default_wep_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key);
int iwl4965_set_default_wep_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key);
int iwl4965_restore_default_wep_keys(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwl4965_set_dynamic_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key, u8 sta_id);
int iwl4965_remove_dynamic_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key, u8 sta_id);
void iwl4965_update_tkip_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
int iwl4965_sta_tx_modify_enable_tid(struct iwl_priv *priv,
int sta_id, int tid);
int iwl4965_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
int tid, u16 ssn);
int iwl4965_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
int tid);
void iwl4965_sta_modify_sleep_tx_count(struct iwl_priv *priv,
int sta_id, int cnt);
int iwl4965_update_bcast_stations(struct iwl_priv *priv);
/* rate */
static inline u32 iwl4965_ant_idx_to_flags(u8 ant_idx)
{
return BIT(ant_idx) << RATE_MCS_ANT_POS;
}
static inline u8 iwl4965_hw_get_rate(__le32 rate_n_flags)
{
return le32_to_cpu(rate_n_flags) & 0xFF;
}
static inline __le32 iwl4965_hw_set_rate_n_flags(u8 rate, u32 flags)
{
return cpu_to_le32(flags|(u32)rate);
}
/* eeprom */
void iwl4965_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac);
int iwl4965_eeprom_acquire_semaphore(struct iwl_priv *priv);
void iwl4965_eeprom_release_semaphore(struct iwl_priv *priv);
int iwl4965_eeprom_check_version(struct iwl_priv *priv);
/* mac80211 handlers (for 4965) */
int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
int iwl4965_mac_start(struct ieee80211_hw *hw);
void iwl4965_mac_stop(struct ieee80211_hw *hw);
void iwl4965_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast);
int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key);
void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta,
u32 iv32, u16 *phase1key);
int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn,
u8 buf_size);
int iwl4965_mac_sta_add(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
void iwl4965_mac_channel_switch(struct ieee80211_hw *hw,
struct ieee80211_channel_switch *ch_switch);
#endif /* __iwl_4965_h__ */

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drivers/net/wireless/iwlegacy/iwl-commands.h Normal file
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drivers/net/wireless/iwlegacy/iwl-core.c Normal file
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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_legacy_core_h__
#define __iwl_legacy_core_h__
/************************
* forward declarations *
************************/
struct iwl_host_cmd;
struct iwl_cmd;
#define IWLWIFI_VERSION "in-tree:"
#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
#define DRV_AUTHOR "<ilw@linux.intel.com>"
#define IWL_PCI_DEVICE(dev, subdev, cfg) \
.vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
.subvendor = PCI_ANY_ID, .subdevice = (subdev), \
.driver_data = (kernel_ulong_t)&(cfg)
#define TIME_UNIT 1024
#define IWL_SKU_G 0x1
#define IWL_SKU_A 0x2
#define IWL_SKU_N 0x8
#define IWL_CMD(x) case x: return #x
struct iwl_hcmd_ops {
int (*rxon_assoc)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
int (*commit_rxon)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
void (*set_rxon_chain)(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
};
struct iwl_hcmd_utils_ops {
u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
u16 (*build_addsta_hcmd)(const struct iwl_legacy_addsta_cmd *cmd,
u8 *data);
int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
void (*post_scan)(struct iwl_priv *priv);
};
struct iwl_apm_ops {
int (*init)(struct iwl_priv *priv);
void (*config)(struct iwl_priv *priv);
};
struct iwl_debugfs_ops {
ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
};
struct iwl_temp_ops {
void (*temperature)(struct iwl_priv *priv);
};
struct iwl_lib_ops {
/* set hw dependent parameters */
int (*set_hw_params)(struct iwl_priv *priv);
/* Handling TX */
void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
u16 byte_cnt);
int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr,
u16 len, u8 reset, u8 pad);
void (*txq_free_tfd)(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
int (*txq_init)(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
/* setup Rx handler */
void (*rx_handler_setup)(struct iwl_priv *priv);
/* alive notification after init uCode load */
void (*init_alive_start)(struct iwl_priv *priv);
/* check validity of rtc data address */
int (*is_valid_rtc_data_addr)(u32 addr);
/* 1st ucode load */
int (*load_ucode)(struct iwl_priv *priv);
int (*dump_nic_event_log)(struct iwl_priv *priv,
bool full_log, char **buf, bool display);
void (*dump_nic_error_log)(struct iwl_priv *priv);
int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
int (*set_channel_switch)(struct iwl_priv *priv,
struct ieee80211_channel_switch *ch_switch);
/* power management */
struct iwl_apm_ops apm_ops;
/* power */
int (*send_tx_power) (struct iwl_priv *priv);
void (*update_chain_flags)(struct iwl_priv *priv);
/* eeprom operations (as defined in iwl-eeprom.h) */
struct iwl_eeprom_ops eeprom_ops;
/* temperature */
struct iwl_temp_ops temp_ops;
/* check for plcp health */
bool (*check_plcp_health)(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
struct iwl_debugfs_ops debugfs_ops;
};
struct iwl_led_ops {
int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
};
struct iwl_legacy_ops {
void (*post_associate)(struct iwl_priv *priv);
void (*config_ap)(struct iwl_priv *priv);
/* station management */
int (*update_bcast_stations)(struct iwl_priv *priv);
int (*manage_ibss_station)(struct iwl_priv *priv,
struct ieee80211_vif *vif, bool add);
};
struct iwl_ops {
const struct iwl_lib_ops *lib;
const struct iwl_hcmd_ops *hcmd;
const struct iwl_hcmd_utils_ops *utils;
const struct iwl_led_ops *led;
const struct iwl_nic_ops *nic;
const struct iwl_legacy_ops *legacy;
const struct ieee80211_ops *ieee80211_ops;
};
struct iwl_mod_params {
int sw_crypto; /* def: 0 = using hardware encryption */
int disable_hw_scan; /* def: 0 = use h/w scan */
int num_of_queues; /* def: HW dependent */
int disable_11n; /* def: 0 = 11n capabilities enabled */
int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */
int antenna; /* def: 0 = both antennas (use diversity) */
int restart_fw; /* def: 1 = restart firmware */
};
/*
* @led_compensation: compensate on the led on/off time per HW according
* to the deviation to achieve the desired led frequency.
* The detail algorithm is described in iwl-led.c
* @chain_noise_num_beacons: number of beacons used to compute chain noise
* @plcp_delta_threshold: plcp error rate threshold used to trigger
* radio tuning when there is a high receiving plcp error rate
* @wd_timeout: TX queues watchdog timeout
* @temperature_kelvin: temperature report by uCode in kelvin
* @max_event_log_size: size of event log buffer size for ucode event logging
* @ucode_tracing: support ucode continuous tracing
* @sensitivity_calib_by_driver: driver has the capability to perform
* sensitivity calibration operation
* @chain_noise_calib_by_driver: driver has the capability to perform
* chain noise calibration operation
*/
struct iwl_base_params {
int eeprom_size;
int num_of_queues; /* def: HW dependent */
int num_of_ampdu_queues;/* def: HW dependent */
/* for iwl_legacy_apm_init() */
u32 pll_cfg_val;
bool set_l0s;
bool use_bsm;
u16 led_compensation;
int chain_noise_num_beacons;
u8 plcp_delta_threshold;
unsigned int wd_timeout;
bool temperature_kelvin;
u32 max_event_log_size;
const bool ucode_tracing;
const bool sensitivity_calib_by_driver;
const bool chain_noise_calib_by_driver;
};
/**
* struct iwl_cfg
* @fw_name_pre: Firmware filename prefix. The api version and extension
* (.ucode) will be added to filename before loading from disk. The
* filename is constructed as fw_name_pre<api>.ucode.
* @ucode_api_max: Highest version of uCode API supported by driver.
* @ucode_api_min: Lowest version of uCode API supported by driver.
* @scan_antennas: available antenna for scan operation
* @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
*
* We enable the driver to be backward compatible wrt API version. The
* driver specifies which APIs it supports (with @ucode_api_max being the
* highest and @ucode_api_min the lowest). Firmware will only be loaded if
* it has a supported API version. The firmware's API version will be
* stored in @iwl_priv, enabling the driver to make runtime changes based
* on firmware version used.
*
* For example,
* if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
* Driver interacts with Firmware API version >= 2.
* } else {
* Driver interacts with Firmware API version 1.
* }
*
* The ideal usage of this infrastructure is to treat a new ucode API
* release as a new hardware revision. That is, through utilizing the
* iwl_hcmd_utils_ops etc. we accommodate different command structures
* and flows between hardware versions as well as their API
* versions.
*
*/
struct iwl_cfg {
/* params specific to an individual device within a device family */
const char *name;
const char *fw_name_pre;
const unsigned int ucode_api_max;
const unsigned int ucode_api_min;
u8 valid_tx_ant;
u8 valid_rx_ant;
unsigned int sku;
u16 eeprom_ver;
u16 eeprom_calib_ver;
const struct iwl_ops *ops;
/* module based parameters which can be set from modprobe cmd */
const struct iwl_mod_params *mod_params;
/* params not likely to change within a device family */
struct iwl_base_params *base_params;
/* params likely to change within a device family */
u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
enum iwl_led_mode led_mode;
};
/***************************
* L i b *
***************************/
struct ieee80211_hw *iwl_legacy_alloc_all(struct iwl_cfg *cfg);
int iwl_legacy_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params);
int iwl_legacy_mac_tx_last_beacon(struct ieee80211_hw *hw);
void iwl_legacy_set_rxon_hwcrypto(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
int hw_decrypt);
int iwl_legacy_check_rxon_cmd(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwl_legacy_full_rxon_required(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwl_legacy_set_rxon_channel(struct iwl_priv *priv,
struct ieee80211_channel *ch,
struct iwl_rxon_context *ctx);
void iwl_legacy_set_flags_for_band(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
enum ieee80211_band band,
struct ieee80211_vif *vif);
u8 iwl_legacy_get_single_channel_number(struct iwl_priv *priv,
enum ieee80211_band band);
void iwl_legacy_set_rxon_ht(struct iwl_priv *priv,
struct iwl_ht_config *ht_conf);
bool iwl_legacy_is_ht40_tx_allowed(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_sta_ht_cap *ht_cap);
void iwl_legacy_connection_init_rx_config(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
void iwl_legacy_set_rate(struct iwl_priv *priv);
int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv,
struct ieee80211_hdr *hdr,
u32 decrypt_res,
struct ieee80211_rx_status *stats);
void iwl_legacy_irq_handle_error(struct iwl_priv *priv);
int iwl_legacy_mac_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
void iwl_legacy_mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
int iwl_legacy_mac_change_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum nl80211_iftype newtype, bool newp2p);
int iwl_legacy_alloc_txq_mem(struct iwl_priv *priv);
void iwl_legacy_txq_mem(struct iwl_priv *priv);
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv);
void iwl_legacy_free_traffic_mem(struct iwl_priv *priv);
void iwl_legacy_reset_traffic_log(struct iwl_priv *priv);
void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header);
void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header);
const char *iwl_legacy_get_mgmt_string(int cmd);
const char *iwl_legacy_get_ctrl_string(int cmd);
void iwl_legacy_clear_traffic_stats(struct iwl_priv *priv);
void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
u16 len);
#else
static inline int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv)
{
return 0;
}
static inline void iwl_legacy_free_traffic_mem(struct iwl_priv *priv)
{
}
static inline void iwl_legacy_reset_traffic_log(struct iwl_priv *priv)
{
}
static inline void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header)
{
}
static inline void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header)
{
}
static inline void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx,
__le16 fc, u16 len)
{
}
#endif
/*****************************************************
* RX handlers.
* **************************************************/
void iwl_legacy_rx_pm_sleep_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_legacy_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_legacy_rx_reply_error(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
/*****************************************************
* RX
******************************************************/
void iwl_legacy_cmd_queue_free(struct iwl_priv *priv);
int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv);
void iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl_rx_queue *q);
int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q);
void iwl_legacy_tx_cmd_complete(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
/* Handlers */
void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwl_legacy_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
void iwl_legacy_chswitch_done(struct iwl_priv *priv, bool is_success);
void iwl_legacy_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
/* TX helpers */
/*****************************************************
* TX
******************************************************/
void iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id);
void iwl_legacy_tx_queue_reset(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
int slots_num, u32 txq_id);
void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id);
void iwl_legacy_setup_watchdog(struct iwl_priv *priv);
/*****************************************************
* TX power
****************************************************/
int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
/*******************************************************************************
* Rate
******************************************************************************/
u8 iwl_legacy_get_lowest_plcp(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
/*******************************************************************************
* Scanning
******************************************************************************/
void iwl_legacy_init_scan_params(struct iwl_priv *priv);
int iwl_legacy_scan_cancel(struct iwl_priv *priv);
int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
void iwl_legacy_force_scan_end(struct iwl_priv *priv);
int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_scan_request *req);
void iwl_legacy_internal_short_hw_scan(struct iwl_priv *priv);
int iwl_legacy_force_reset(struct iwl_priv *priv, int mode, bool external);
u16 iwl_legacy_fill_probe_req(struct iwl_priv *priv,
struct ieee80211_mgmt *frame,
const u8 *ta, const u8 *ie, int ie_len, int left);
void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv);
u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv,
enum ieee80211_band band,
u8 n_probes);
u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv,
enum ieee80211_band band,
struct ieee80211_vif *vif);
void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv);
void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv);
/* For faster active scanning, scan will move to the next channel if fewer than
* PLCP_QUIET_THRESH packets are heard on this channel within
* ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
* time if it's a quiet channel (nothing responded to our probe, and there's
* no other traffic).
* Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
#define IWL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */
#define IWL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */
#define IWL_SCAN_CHECK_WATCHDOG (HZ * 7)
/*****************************************************
* S e n d i n g H o s t C o m m a n d s *
*****************************************************/
const char *iwl_legacy_get_cmd_string(u8 cmd);
int __must_check iwl_legacy_send_cmd_sync(struct iwl_priv *priv,
struct iwl_host_cmd *cmd);
int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
int __must_check iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id,
u16 len, const void *data);
int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
const void *data,
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt));
int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
/*****************************************************
* PCI *
*****************************************************/
static inline u16 iwl_legacy_pcie_link_ctl(struct iwl_priv *priv)
{
int pos;
u16 pci_lnk_ctl;
pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
return pci_lnk_ctl;
}
void iwl_legacy_bg_watchdog(unsigned long data);
u32 iwl_legacy_usecs_to_beacons(struct iwl_priv *priv,
u32 usec, u32 beacon_interval);
__le32 iwl_legacy_add_beacon_time(struct iwl_priv *priv, u32 base,
u32 addon, u32 beacon_interval);
#ifdef CONFIG_PM
int iwl_legacy_pci_suspend(struct device *device);
int iwl_legacy_pci_resume(struct device *device);
extern const struct dev_pm_ops iwl_legacy_pm_ops;
#define IWL_LEGACY_PM_OPS (&iwl_legacy_pm_ops)
#else /* !CONFIG_PM */
#define IWL_LEGACY_PM_OPS NULL
#endif /* !CONFIG_PM */
/*****************************************************
* Error Handling Debugging
******************************************************/
void iwl4965_dump_nic_error_log(struct iwl_priv *priv);
int iwl4965_dump_nic_event_log(struct iwl_priv *priv,
bool full_log, char **buf, bool display);
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
#else
static inline void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
}
#endif
void iwl_legacy_clear_isr_stats(struct iwl_priv *priv);
/*****************************************************
* GEOS
******************************************************/
int iwl_legacy_init_geos(struct iwl_priv *priv);
void iwl_legacy_free_geos(struct iwl_priv *priv);
/*************** DRIVER STATUS FUNCTIONS *****/
#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
/* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
#define STATUS_INT_ENABLED 2
#define STATUS_RF_KILL_HW 3
#define STATUS_CT_KILL 4
#define STATUS_INIT 5
#define STATUS_ALIVE 6
#define STATUS_READY 7
#define STATUS_TEMPERATURE 8
#define STATUS_GEO_CONFIGURED 9
#define STATUS_EXIT_PENDING 10
#define STATUS_STATISTICS 12
#define STATUS_SCANNING 13
#define STATUS_SCAN_ABORTING 14
#define STATUS_SCAN_HW 15
#define STATUS_POWER_PMI 16
#define STATUS_FW_ERROR 17
static inline int iwl_legacy_is_ready(struct iwl_priv *priv)
{
/* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
* set but EXIT_PENDING is not */
return test_bit(STATUS_READY, &priv->status) &&
test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
!test_bit(STATUS_EXIT_PENDING, &priv->status);
}
static inline int iwl_legacy_is_alive(struct iwl_priv *priv)
{
return test_bit(STATUS_ALIVE, &priv->status);
}
static inline int iwl_legacy_is_init(struct iwl_priv *priv)
{
return test_bit(STATUS_INIT, &priv->status);
}
static inline int iwl_legacy_is_rfkill_hw(struct iwl_priv *priv)
{
return test_bit(STATUS_RF_KILL_HW, &priv->status);
}
static inline int iwl_legacy_is_rfkill(struct iwl_priv *priv)
{
return iwl_legacy_is_rfkill_hw(priv);
}
static inline int iwl_legacy_is_ctkill(struct iwl_priv *priv)
{
return test_bit(STATUS_CT_KILL, &priv->status);
}
static inline int iwl_legacy_is_ready_rf(struct iwl_priv *priv)
{
if (iwl_legacy_is_rfkill(priv))
return 0;
return iwl_legacy_is_ready(priv);
}
extern void iwl_legacy_send_bt_config(struct iwl_priv *priv);
extern int iwl_legacy_send_statistics_request(struct iwl_priv *priv,
u8 flags, bool clear);
void iwl_legacy_apm_stop(struct iwl_priv *priv);
int iwl_legacy_apm_init(struct iwl_priv *priv);
int iwl_legacy_send_rxon_timing(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
static inline int iwl_legacy_send_rxon_assoc(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
}
static inline int iwl_legacy_commit_rxon(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
}
static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
struct iwl_priv *priv, enum ieee80211_band band)
{
return priv->hw->wiphy->bands[band];
}
extern bool bt_coex_active;
/* mac80211 handlers */
int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed);
void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw);
void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changes);
void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
struct ieee80211_tx_info *info,
__le16 fc, __le32 *tx_flags);
irqreturn_t iwl_legacy_isr(int irq, void *data);
#endif /* __iwl_legacy_core_h__ */

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drivers/net/wireless/iwlegacy/iwl-csr.h Normal file
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@ -0,0 +1,422 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#ifndef __iwl_legacy_csr_h__
#define __iwl_legacy_csr_h__
/*
* CSR (control and status registers)
*
* CSR registers are mapped directly into PCI bus space, and are accessible
* whenever platform supplies power to device, even when device is in
* low power states due to driver-invoked device resets
* (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
*
* Use iwl_write32() and iwl_read32() family to access these registers;
* these provide simple PCI bus access, without waking up the MAC.
* Do not use iwl_legacy_write_direct32() family for these registers;
* no need to "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ.
* The MAC (uCode processor, etc.) does not need to be powered up for accessing
* the CSR registers.
*
* NOTE: Device does need to be awake in order to read this memory
* via CSR_EEPROM register
*/
#define CSR_BASE (0x000)
#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */
#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */
#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack*/
#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
#define CSR_GP_CNTRL (CSR_BASE+0x024)
/* 2nd byte of CSR_INT_COALESCING, not accessible via iwl_write32()! */
#define CSR_INT_PERIODIC_REG (CSR_BASE+0x005)
/*
* Hardware revision info
* Bit fields:
* 31-8: Reserved
* 7-4: Type of device: see CSR_HW_REV_TYPE_xxx definitions
* 3-2: Revision step: 0 = A, 1 = B, 2 = C, 3 = D
* 1-0: "Dash" (-) value, as in A-1, etc.
*
* NOTE: Revision step affects calculation of CCK txpower for 4965.
* NOTE: See also CSR_HW_REV_WA_REG (work-around for bug in 4965).
*/
#define CSR_HW_REV (CSR_BASE+0x028)
/*
* EEPROM memory reads
*
* NOTE: Device must be awake, initialized via apm_ops.init(),
* in order to read.
*/
#define CSR_EEPROM_REG (CSR_BASE+0x02c)
#define CSR_EEPROM_GP (CSR_BASE+0x030)
#define CSR_GIO_REG (CSR_BASE+0x03C)
#define CSR_GP_UCODE_REG (CSR_BASE+0x048)
#define CSR_GP_DRIVER_REG (CSR_BASE+0x050)
/*
* UCODE-DRIVER GP (general purpose) mailbox registers.
* SET/CLR registers set/clear bit(s) if "1" is written.
*/
#define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054)
#define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058)
#define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c)
#define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060)
#define CSR_LED_REG (CSR_BASE+0x094)
#define CSR_DRAM_INT_TBL_REG (CSR_BASE+0x0A0)
/* GIO Chicken Bits (PCI Express bus link power management) */
#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
/* Analog phase-lock-loop configuration */
#define CSR_ANA_PLL_CFG (CSR_BASE+0x20c)
/*
* CSR Hardware Revision Workaround Register. Indicates hardware rev;
* "step" determines CCK backoff for txpower calculation. Used for 4965 only.
* See also CSR_HW_REV register.
* Bit fields:
* 3-2: 0 = A, 1 = B, 2 = C, 3 = D step
* 1-0: "Dash" (-) value, as in C-1, etc.
*/
#define CSR_HW_REV_WA_REG (CSR_BASE+0x22C)
#define CSR_DBG_HPET_MEM_REG (CSR_BASE+0x240)
#define CSR_DBG_LINK_PWR_MGMT_REG (CSR_BASE+0x250)
/* Bits for CSR_HW_IF_CONFIG_REG */
#define CSR49_HW_IF_CONFIG_REG_BIT_4965_R (0x00000010)
#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER (0x00000C00)
#define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI (0x00000100)
#define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI (0x00000200)
#define CSR39_HW_IF_CONFIG_REG_BIT_3945_MB (0x00000100)
#define CSR39_HW_IF_CONFIG_REG_BIT_3945_MM (0x00000200)
#define CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC (0x00000400)
#define CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE (0x00000800)
#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000)
#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000)
#define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A (0x00080000)
#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */
#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */
#define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */
#define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int*/
#define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec*/
/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
* acknowledged (reset) by host writing "1" to flagged bits. */
#define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
#define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */
#define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */
#define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */
#define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */
#define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */
#define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */
#define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */
#define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */
#define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */
#define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */
#define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \
CSR_INT_BIT_HW_ERR | \
CSR_INT_BIT_FH_TX | \
CSR_INT_BIT_SW_ERR | \
CSR_INT_BIT_RF_KILL | \
CSR_INT_BIT_SW_RX | \
CSR_INT_BIT_WAKEUP | \
CSR_INT_BIT_ALIVE)
/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
#define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */
#define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */
#define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */
#define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */
#define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */
#define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */
#define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */
#define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */
#define CSR39_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
CSR39_FH_INT_BIT_RX_CHNL2 | \
CSR_FH_INT_BIT_RX_CHNL1 | \
CSR_FH_INT_BIT_RX_CHNL0)
#define CSR39_FH_INT_TX_MASK (CSR39_FH_INT_BIT_TX_CHNL6 | \
CSR_FH_INT_BIT_TX_CHNL1 | \
CSR_FH_INT_BIT_TX_CHNL0)
#define CSR49_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
CSR_FH_INT_BIT_RX_CHNL1 | \
CSR_FH_INT_BIT_RX_CHNL0)
#define CSR49_FH_INT_TX_MASK (CSR_FH_INT_BIT_TX_CHNL1 | \
CSR_FH_INT_BIT_TX_CHNL0)
/* GPIO */
#define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200)
#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000)
#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC (0x00000200)
/* RESET */
#define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001)
#define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002)
#define CSR_RESET_REG_FLAG_SW_RESET (0x00000080)
#define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100)
#define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200)
#define CSR_RESET_LINK_PWR_MGMT_DISABLED (0x80000000)
/*
* GP (general purpose) CONTROL REGISTER
* Bit fields:
* 27: HW_RF_KILL_SW
* Indicates state of (platform's) hardware RF-Kill switch
* 26-24: POWER_SAVE_TYPE
* Indicates current power-saving mode:
* 000 -- No power saving
* 001 -- MAC power-down
* 010 -- PHY (radio) power-down
* 011 -- Error
* 9-6: SYS_CONFIG
* Indicates current system configuration, reflecting pins on chip
* as forced high/low by device circuit board.
* 4: GOING_TO_SLEEP
* Indicates MAC is entering a power-saving sleep power-down.
* Not a good time to access device-internal resources.
* 3: MAC_ACCESS_REQ
* Host sets this to request and maintain MAC wakeup, to allow host
* access to device-internal resources. Host must wait for
* MAC_CLOCK_READY (and !GOING_TO_SLEEP) before accessing non-CSR
* device registers.
* 2: INIT_DONE
* Host sets this to put device into fully operational D0 power mode.
* Host resets this after SW_RESET to put device into low power mode.
* 0: MAC_CLOCK_READY
* Indicates MAC (ucode processor, etc.) is powered up and can run.
* Internal resources are accessible.
* NOTE: This does not indicate that the processor is actually running.
* NOTE: This does not indicate that 4965 or 3945 has completed
* init or post-power-down restore of internal SRAM memory.
* Use CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP as indication that
* SRAM is restored and uCode is in normal operation mode.
* Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
* do not need to save/restore it.
* NOTE: After device reset, this bit remains "0" until host sets
* INIT_DONE
*/
#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001)
#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004)
#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008)
#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010)
#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001)
#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000)
#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
/* EEPROM REG */
#define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001)
#define CSR_EEPROM_REG_BIT_CMD (0x00000002)
#define CSR_EEPROM_REG_MSK_ADDR (0x0000FFFC)
#define CSR_EEPROM_REG_MSK_DATA (0xFFFF0000)
/* EEPROM GP */
#define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */
#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
#define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K (0x00000002)
#define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K (0x00000004)
/* GP REG */
#define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */
#define CSR_GP_REG_NO_POWER_SAVE (0x00000000)
#define CSR_GP_REG_MAC_POWER_SAVE (0x01000000)
#define CSR_GP_REG_PHY_POWER_SAVE (0x02000000)
#define CSR_GP_REG_POWER_SAVE_ERROR (0x03000000)
/* CSR GIO */
#define CSR_GIO_REG_VAL_L0S_ENABLED (0x00000002)
/*
* UCODE-DRIVER GP (general purpose) mailbox register 1
* Host driver and uCode write and/or read this register to communicate with
* each other.
* Bit fields:
* 4: UCODE_DISABLE
* Host sets this to request permanent halt of uCode, same as
* sending CARD_STATE command with "halt" bit set.
* 3: CT_KILL_EXIT
* Host sets this to request exit from CT_KILL state, i.e. host thinks
* device temperature is low enough to continue normal operation.
* 2: CMD_BLOCKED
* Host sets this during RF KILL power-down sequence (HW, SW, CT KILL)
* to release uCode to clear all Tx and command queues, enter
* unassociated mode, and power down.
* NOTE: Some devices also use HBUS_TARG_MBX_C register for this bit.
* 1: SW_BIT_RFKILL
* Host sets this when issuing CARD_STATE command to request
* device sleep.
* 0: MAC_SLEEP
* uCode sets this when preparing a power-saving power-down.
* uCode resets this when power-up is complete and SRAM is sane.
* NOTE: 3945/4965 saves internal SRAM data to host when powering down,
* and must restore this data after powering back up.
* MAC_SLEEP is the best indication that restore is complete.
* Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
* do not need to save/restore it.
*/
#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004)
#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008)
/* GIO Chicken Bits (PCI Express bus link power management) */
#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000)
#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000)
/* LED */
#define CSR_LED_BSM_CTRL_MSK (0xFFFFFFDF)
#define CSR_LED_REG_TRUN_ON (0x78)
#define CSR_LED_REG_TRUN_OFF (0x38)
/* ANA_PLL */
#define CSR39_ANA_PLL_CFG_VAL (0x01000000)
/* HPET MEM debug */
#define CSR_DBG_HPET_MEM_REG_VAL (0xFFFF0000)
/* DRAM INT TABLE */
#define CSR_DRAM_INT_TBL_ENABLE (1 << 31)
#define CSR_DRAM_INIT_TBL_WRAP_CHECK (1 << 27)
/*
* HBUS (Host-side Bus)
*
* HBUS registers are mapped directly into PCI bus space, but are used
* to indirectly access device's internal memory or registers that
* may be powered-down.
*
* Use iwl_legacy_write_direct32()/iwl_legacy_read_direct32() family
* for these registers;
* host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
* to make sure the MAC (uCode processor, etc.) is powered up for accessing
* internal resources.
*
* Do not use iwl_write32()/iwl_read32() family to access these registers;
* these provide only simple PCI bus access, without waking up the MAC.
*/
#define HBUS_BASE (0x400)
/*
* Registers for accessing device's internal SRAM memory (e.g. SCD SRAM
* structures, error log, event log, verifying uCode load).
* First write to address register, then read from or write to data register
* to complete the job. Once the address register is set up, accesses to
* data registers auto-increment the address by one dword.
* Bit usage for address registers (read or write):
* 0-31: memory address within device
*/
#define HBUS_TARG_MEM_RADDR (HBUS_BASE+0x00c)
#define HBUS_TARG_MEM_WADDR (HBUS_BASE+0x010)
#define HBUS_TARG_MEM_WDAT (HBUS_BASE+0x018)
#define HBUS_TARG_MEM_RDAT (HBUS_BASE+0x01c)
/* Mailbox C, used as workaround alternative to CSR_UCODE_DRV_GP1 mailbox */
#define HBUS_TARG_MBX_C (HBUS_BASE+0x030)
#define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED (0x00000004)
/*
* Registers for accessing device's internal peripheral registers
* (e.g. SCD, BSM, etc.). First write to address register,
* then read from or write to data register to complete the job.
* Bit usage for address registers (read or write):
* 0-15: register address (offset) within device
* 24-25: (# bytes - 1) to read or write (e.g. 3 for dword)
*/
#define HBUS_TARG_PRPH_WADDR (HBUS_BASE+0x044)
#define HBUS_TARG_PRPH_RADDR (HBUS_BASE+0x048)
#define HBUS_TARG_PRPH_WDAT (HBUS_BASE+0x04c)
#define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050)
/*
* Per-Tx-queue write pointer (index, really!)
* Indicates index to next TFD that driver will fill (1 past latest filled).
* Bit usage:
* 0-7: queue write index
* 11-8: queue selector
*/
#define HBUS_TARG_WRPTR (HBUS_BASE+0x060)
#endif /* !__iwl_legacy_csr_h__ */

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/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_debug_h__
#define __iwl_legacy_debug_h__
struct iwl_priv;
extern u32 iwl_debug_level;
#define IWL_ERR(p, f, a...) dev_err(&((p)->pci_dev->dev), f, ## a)
#define IWL_WARN(p, f, a...) dev_warn(&((p)->pci_dev->dev), f, ## a)
#define IWL_INFO(p, f, a...) dev_info(&((p)->pci_dev->dev), f, ## a)
#define IWL_CRIT(p, f, a...) dev_crit(&((p)->pci_dev->dev), f, ## a)
#define iwl_print_hex_error(priv, p, len) \
do { \
print_hex_dump(KERN_ERR, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
#define IWL_DEBUG(__priv, level, fmt, args...) \
do { \
if (iwl_legacy_get_debug_level(__priv) & (level)) \
dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
"%c %s " fmt, in_interrupt() ? 'I' : 'U', \
__func__ , ## args); \
} while (0)
#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) \
do { \
if ((iwl_legacy_get_debug_level(__priv) & (level)) && net_ratelimit()) \
dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
"%c %s " fmt, in_interrupt() ? 'I' : 'U', \
__func__ , ## args); \
} while (0)
#define iwl_print_hex_dump(priv, level, p, len) \
do { \
if (iwl_legacy_get_debug_level(priv) & level) \
print_hex_dump(KERN_DEBUG, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#else
#define IWL_DEBUG(__priv, level, fmt, args...)
#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
const void *p, u32 len)
{}
#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
int iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name);
void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv);
#else
static inline int
iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name)
{
return 0;
}
static inline void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv)
{
}
#endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */
/*
* To use the debug system:
*
* If you are defining a new debug classification, simply add it to the #define
* list here in the form of
*
* #define IWL_DL_xxxx VALUE
*
* where xxxx should be the name of the classification (for example, WEP).
*
* You then need to either add a IWL_xxxx_DEBUG() macro definition for your
* classification, or use IWL_DEBUG(IWL_DL_xxxx, ...) whenever you want
* to send output to that classification.
*
* The active debug levels can be accessed via files
*
* /sys/module/iwl4965/parameters/debug{50}
* /sys/module/iwl3945/parameters/debug
* /sys/class/net/wlan0/device/debug_level
*
* when CONFIG_IWLWIFI_LEGACY_DEBUG=y.
*/
/* 0x0000000F - 0x00000001 */
#define IWL_DL_INFO (1 << 0)
#define IWL_DL_MAC80211 (1 << 1)
#define IWL_DL_HCMD (1 << 2)
#define IWL_DL_STATE (1 << 3)
/* 0x000000F0 - 0x00000010 */
#define IWL_DL_MACDUMP (1 << 4)
#define IWL_DL_HCMD_DUMP (1 << 5)
#define IWL_DL_EEPROM (1 << 6)
#define IWL_DL_RADIO (1 << 7)
/* 0x00000F00 - 0x00000100 */
#define IWL_DL_POWER (1 << 8)
#define IWL_DL_TEMP (1 << 9)
#define IWL_DL_NOTIF (1 << 10)
#define IWL_DL_SCAN (1 << 11)
/* 0x0000F000 - 0x00001000 */
#define IWL_DL_ASSOC (1 << 12)
#define IWL_DL_DROP (1 << 13)
#define IWL_DL_TXPOWER (1 << 14)
#define IWL_DL_AP (1 << 15)
/* 0x000F0000 - 0x00010000 */
#define IWL_DL_FW (1 << 16)
#define IWL_DL_RF_KILL (1 << 17)
#define IWL_DL_FW_ERRORS (1 << 18)
#define IWL_DL_LED (1 << 19)
/* 0x00F00000 - 0x00100000 */
#define IWL_DL_RATE (1 << 20)
#define IWL_DL_CALIB (1 << 21)
#define IWL_DL_WEP (1 << 22)
#define IWL_DL_TX (1 << 23)
/* 0x0F000000 - 0x01000000 */
#define IWL_DL_RX (1 << 24)
#define IWL_DL_ISR (1 << 25)
#define IWL_DL_HT (1 << 26)
#define IWL_DL_IO (1 << 27)
/* 0xF0000000 - 0x10000000 */
#define IWL_DL_11H (1 << 28)
#define IWL_DL_STATS (1 << 29)
#define IWL_DL_TX_REPLY (1 << 30)
#define IWL_DL_QOS (1 << 31)
#define IWL_DEBUG_INFO(p, f, a...) IWL_DEBUG(p, IWL_DL_INFO, f, ## a)
#define IWL_DEBUG_MAC80211(p, f, a...) IWL_DEBUG(p, IWL_DL_MAC80211, f, ## a)
#define IWL_DEBUG_MACDUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_MACDUMP, f, ## a)
#define IWL_DEBUG_TEMP(p, f, a...) IWL_DEBUG(p, IWL_DL_TEMP, f, ## a)
#define IWL_DEBUG_SCAN(p, f, a...) IWL_DEBUG(p, IWL_DL_SCAN, f, ## a)
#define IWL_DEBUG_RX(p, f, a...) IWL_DEBUG(p, IWL_DL_RX, f, ## a)
#define IWL_DEBUG_TX(p, f, a...) IWL_DEBUG(p, IWL_DL_TX, f, ## a)
#define IWL_DEBUG_ISR(p, f, a...) IWL_DEBUG(p, IWL_DL_ISR, f, ## a)
#define IWL_DEBUG_LED(p, f, a...) IWL_DEBUG(p, IWL_DL_LED, f, ## a)
#define IWL_DEBUG_WEP(p, f, a...) IWL_DEBUG(p, IWL_DL_WEP, f, ## a)
#define IWL_DEBUG_HC(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD, f, ## a)
#define IWL_DEBUG_HC_DUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD_DUMP, f, ## a)
#define IWL_DEBUG_EEPROM(p, f, a...) IWL_DEBUG(p, IWL_DL_EEPROM, f, ## a)
#define IWL_DEBUG_CALIB(p, f, a...) IWL_DEBUG(p, IWL_DL_CALIB, f, ## a)
#define IWL_DEBUG_FW(p, f, a...) IWL_DEBUG(p, IWL_DL_FW, f, ## a)
#define IWL_DEBUG_RF_KILL(p, f, a...) IWL_DEBUG(p, IWL_DL_RF_KILL, f, ## a)
#define IWL_DEBUG_DROP(p, f, a...) IWL_DEBUG(p, IWL_DL_DROP, f, ## a)
#define IWL_DEBUG_DROP_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_DROP, f, ## a)
#define IWL_DEBUG_AP(p, f, a...) IWL_DEBUG(p, IWL_DL_AP, f, ## a)
#define IWL_DEBUG_TXPOWER(p, f, a...) IWL_DEBUG(p, IWL_DL_TXPOWER, f, ## a)
#define IWL_DEBUG_IO(p, f, a...) IWL_DEBUG(p, IWL_DL_IO, f, ## a)
#define IWL_DEBUG_RATE(p, f, a...) IWL_DEBUG(p, IWL_DL_RATE, f, ## a)
#define IWL_DEBUG_RATE_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_RATE, f, ## a)
#define IWL_DEBUG_NOTIF(p, f, a...) IWL_DEBUG(p, IWL_DL_NOTIF, f, ## a)
#define IWL_DEBUG_ASSOC(p, f, a...) \
IWL_DEBUG(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
#define IWL_DEBUG_ASSOC_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
#define IWL_DEBUG_HT(p, f, a...) IWL_DEBUG(p, IWL_DL_HT, f, ## a)
#define IWL_DEBUG_STATS(p, f, a...) IWL_DEBUG(p, IWL_DL_STATS, f, ## a)
#define IWL_DEBUG_STATS_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_STATS, f, ## a)
#define IWL_DEBUG_TX_REPLY(p, f, a...) IWL_DEBUG(p, IWL_DL_TX_REPLY, f, ## a)
#define IWL_DEBUG_TX_REPLY_LIMIT(p, f, a...) \
IWL_DEBUG_LIMIT(p, IWL_DL_TX_REPLY, f, ## a)
#define IWL_DEBUG_QOS(p, f, a...) IWL_DEBUG(p, IWL_DL_QOS, f, ## a)
#define IWL_DEBUG_RADIO(p, f, a...) IWL_DEBUG(p, IWL_DL_RADIO, f, ## a)
#define IWL_DEBUG_POWER(p, f, a...) IWL_DEBUG(p, IWL_DL_POWER, f, ## a)
#define IWL_DEBUG_11H(p, f, a...) IWL_DEBUG(p, IWL_DL_11H, f, ## a)
#endif

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/******************************************************************************
*
* Copyright(c) 2009 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/module.h>
/* sparse doesn't like tracepoint macros */
#ifndef __CHECKER__
#include "iwl-dev.h"
#define CREATE_TRACE_POINTS
#include "iwl-devtrace.h"
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_iowrite8);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ioread32);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_iowrite32);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_rx);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_tx);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ucode_event);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ucode_error);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ucode_cont_event);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ucode_wrap_event);
#endif

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/******************************************************************************
*
* Copyright(c) 2009 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#if !defined(__IWLWIFI_LEGACY_DEVICE_TRACE) || defined(TRACE_HEADER_MULTI_READ)
#define __IWLWIFI_LEGACY_DEVICE_TRACE
#include <linux/tracepoint.h>
#if !defined(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) || defined(__CHECKER__)
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, ...) \
static inline void trace_ ## name(proto) {}
#endif
#define PRIV_ENTRY __field(struct iwl_priv *, priv)
#define PRIV_ASSIGN (__entry->priv = priv)
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iwlwifi_legacy_io
TRACE_EVENT(iwlwifi_legacy_dev_ioread32,
TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val),
TP_ARGS(priv, offs, val),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, offs)
__field(u32, val)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->offs = offs;
__entry->val = val;
),
TP_printk("[%p] read io[%#x] = %#x", __entry->priv,
__entry->offs, __entry->val)
);
TRACE_EVENT(iwlwifi_legacy_dev_iowrite8,
TP_PROTO(struct iwl_priv *priv, u32 offs, u8 val),
TP_ARGS(priv, offs, val),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, offs)
__field(u8, val)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->offs = offs;
__entry->val = val;
),
TP_printk("[%p] write io[%#x] = %#x)", __entry->priv,
__entry->offs, __entry->val)
);
TRACE_EVENT(iwlwifi_legacy_dev_iowrite32,
TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val),
TP_ARGS(priv, offs, val),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, offs)
__field(u32, val)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->offs = offs;
__entry->val = val;
),
TP_printk("[%p] write io[%#x] = %#x)", __entry->priv,
__entry->offs, __entry->val)
);
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iwlwifi_legacy_ucode
TRACE_EVENT(iwlwifi_legacy_dev_ucode_cont_event,
TP_PROTO(struct iwl_priv *priv, u32 time, u32 data, u32 ev),
TP_ARGS(priv, time, data, ev),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, time)
__field(u32, data)
__field(u32, ev)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->time = time;
__entry->data = data;
__entry->ev = ev;
),
TP_printk("[%p] EVT_LOGT:%010u:0x%08x:%04u",
__entry->priv, __entry->time, __entry->data, __entry->ev)
);
TRACE_EVENT(iwlwifi_legacy_dev_ucode_wrap_event,
TP_PROTO(struct iwl_priv *priv, u32 wraps, u32 n_entry, u32 p_entry),
TP_ARGS(priv, wraps, n_entry, p_entry),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, wraps)
__field(u32, n_entry)
__field(u32, p_entry)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->wraps = wraps;
__entry->n_entry = n_entry;
__entry->p_entry = p_entry;
),
TP_printk("[%p] wraps=#%02d n=0x%X p=0x%X",
__entry->priv, __entry->wraps, __entry->n_entry,
__entry->p_entry)
);
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iwlwifi
TRACE_EVENT(iwlwifi_legacy_dev_hcmd,
TP_PROTO(struct iwl_priv *priv, void *hcmd, size_t len, u32 flags),
TP_ARGS(priv, hcmd, len, flags),
TP_STRUCT__entry(
PRIV_ENTRY
__dynamic_array(u8, hcmd, len)
__field(u32, flags)
),
TP_fast_assign(
PRIV_ASSIGN;
memcpy(__get_dynamic_array(hcmd), hcmd, len);
__entry->flags = flags;
),
TP_printk("[%p] hcmd %#.2x (%ssync)",
__entry->priv, ((u8 *)__get_dynamic_array(hcmd))[0],
__entry->flags & CMD_ASYNC ? "a" : "")
);
TRACE_EVENT(iwlwifi_legacy_dev_rx,
TP_PROTO(struct iwl_priv *priv, void *rxbuf, size_t len),
TP_ARGS(priv, rxbuf, len),
TP_STRUCT__entry(
PRIV_ENTRY
__dynamic_array(u8, rxbuf, len)
),
TP_fast_assign(
PRIV_ASSIGN;
memcpy(__get_dynamic_array(rxbuf), rxbuf, len);
),
TP_printk("[%p] RX cmd %#.2x",
__entry->priv, ((u8 *)__get_dynamic_array(rxbuf))[4])
);
TRACE_EVENT(iwlwifi_legacy_dev_tx,
TP_PROTO(struct iwl_priv *priv, void *tfd, size_t tfdlen,
void *buf0, size_t buf0_len,
void *buf1, size_t buf1_len),
TP_ARGS(priv, tfd, tfdlen, buf0, buf0_len, buf1, buf1_len),
TP_STRUCT__entry(
PRIV_ENTRY
__field(size_t, framelen)
__dynamic_array(u8, tfd, tfdlen)
/*
* Do not insert between or below these items,
* we want to keep the frame together (except
* for the possible padding).
*/
__dynamic_array(u8, buf0, buf0_len)
__dynamic_array(u8, buf1, buf1_len)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->framelen = buf0_len + buf1_len;
memcpy(__get_dynamic_array(tfd), tfd, tfdlen);
memcpy(__get_dynamic_array(buf0), buf0, buf0_len);
memcpy(__get_dynamic_array(buf1), buf1, buf1_len);
),
TP_printk("[%p] TX %.2x (%zu bytes)",
__entry->priv,
((u8 *)__get_dynamic_array(buf0))[0],
__entry->framelen)
);
TRACE_EVENT(iwlwifi_legacy_dev_ucode_error,
TP_PROTO(struct iwl_priv *priv, u32 desc, u32 time,
u32 data1, u32 data2, u32 line, u32 blink1,
u32 blink2, u32 ilink1, u32 ilink2),
TP_ARGS(priv, desc, time, data1, data2, line,
blink1, blink2, ilink1, ilink2),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, desc)
__field(u32, time)
__field(u32, data1)
__field(u32, data2)
__field(u32, line)
__field(u32, blink1)
__field(u32, blink2)
__field(u32, ilink1)
__field(u32, ilink2)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->desc = desc;
__entry->time = time;
__entry->data1 = data1;
__entry->data2 = data2;
__entry->line = line;
__entry->blink1 = blink1;
__entry->blink2 = blink2;
__entry->ilink1 = ilink1;
__entry->ilink2 = ilink2;
),
TP_printk("[%p] #%02d %010u data 0x%08X 0x%08X line %u, "
"blink 0x%05X 0x%05X ilink 0x%05X 0x%05X",
__entry->priv, __entry->desc, __entry->time, __entry->data1,
__entry->data2, __entry->line, __entry->blink1,
__entry->blink2, __entry->ilink1, __entry->ilink2)
);
TRACE_EVENT(iwlwifi_legacy_dev_ucode_event,
TP_PROTO(struct iwl_priv *priv, u32 time, u32 data, u32 ev),
TP_ARGS(priv, time, data, ev),
TP_STRUCT__entry(
PRIV_ENTRY
__field(u32, time)
__field(u32, data)
__field(u32, ev)
),
TP_fast_assign(
PRIV_ASSIGN;
__entry->time = time;
__entry->data = data;
__entry->ev = ev;
),
TP_printk("[%p] EVT_LOGT:%010u:0x%08x:%04u",
__entry->priv, __entry->time, __entry->data, __entry->ev)
);
#endif /* __IWLWIFI_DEVICE_TRACE */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE iwl-devtrace
#include <trace/define_trace.h>

561
drivers/net/wireless/iwlegacy/iwl-eeprom.c Normal file
View File

@ -0,0 +1,561 @@
/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <net/mac80211.h>
#include "iwl-commands.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-debug.h"
#include "iwl-eeprom.h"
#include "iwl-io.h"
/************************** EEPROM BANDS ****************************
*
* The iwl_eeprom_band definitions below provide the mapping from the
* EEPROM contents to the specific channel number supported for each
* band.
*
* For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
* definition below maps to physical channel 42 in the 5.2GHz spectrum.
* The specific geography and calibration information for that channel
* is contained in the eeprom map itself.
*
* During init, we copy the eeprom information and channel map
* information into priv->channel_info_24/52 and priv->channel_map_24/52
*
* channel_map_24/52 provides the index in the channel_info array for a
* given channel. We have to have two separate maps as there is channel
* overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
* band_2
*
* A value of 0xff stored in the channel_map indicates that the channel
* is not supported by the hardware at all.
*
* A value of 0xfe in the channel_map indicates that the channel is not
* valid for Tx with the current hardware. This means that
* while the system can tune and receive on a given channel, it may not
* be able to associate or transmit any frames on that
* channel. There is no corresponding channel information for that
* entry.
*
*********************************************************************/
/* 2.4 GHz */
const u8 iwl_eeprom_band_1[14] = {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
};
/* 5.2 GHz bands */
static const u8 iwl_eeprom_band_2[] = { /* 4915-5080MHz */
183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
};
static const u8 iwl_eeprom_band_3[] = { /* 5170-5320MHz */
34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
};
static const u8 iwl_eeprom_band_4[] = { /* 5500-5700MHz */
100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
};
static const u8 iwl_eeprom_band_5[] = { /* 5725-5825MHz */
145, 149, 153, 157, 161, 165
};
static const u8 iwl_eeprom_band_6[] = { /* 2.4 ht40 channel */
1, 2, 3, 4, 5, 6, 7
};
static const u8 iwl_eeprom_band_7[] = { /* 5.2 ht40 channel */
36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
};
/******************************************************************************
*
* EEPROM related functions
*
******************************************************************************/
static int iwl_legacy_eeprom_verify_signature(struct iwl_priv *priv)
{
u32 gp = iwl_read32(priv, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK;
int ret = 0;
IWL_DEBUG_EEPROM(priv, "EEPROM signature=0x%08x\n", gp);
switch (gp) {
case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K:
case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K:
break;
default:
IWL_ERR(priv, "bad EEPROM signature,"
"EEPROM_GP=0x%08x\n", gp);
ret = -ENOENT;
break;
}
return ret;
}
const u8
*iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv, size_t offset)
{
BUG_ON(offset >= priv->cfg->base_params->eeprom_size);
return &priv->eeprom[offset];
}
EXPORT_SYMBOL(iwl_legacy_eeprom_query_addr);
u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset)
{
if (!priv->eeprom)
return 0;
return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8);
}
EXPORT_SYMBOL(iwl_legacy_eeprom_query16);
/**
* iwl_legacy_eeprom_init - read EEPROM contents
*
* Load the EEPROM contents from adapter into priv->eeprom
*
* NOTE: This routine uses the non-debug IO access functions.
*/
int iwl_legacy_eeprom_init(struct iwl_priv *priv)
{
__le16 *e;
u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
int sz;
int ret;
u16 addr;
/* allocate eeprom */
sz = priv->cfg->base_params->eeprom_size;
IWL_DEBUG_EEPROM(priv, "NVM size = %d\n", sz);
priv->eeprom = kzalloc(sz, GFP_KERNEL);
if (!priv->eeprom) {
ret = -ENOMEM;
goto alloc_err;
}
e = (__le16 *)priv->eeprom;
priv->cfg->ops->lib->apm_ops.init(priv);
ret = iwl_legacy_eeprom_verify_signature(priv);
if (ret < 0) {
IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
ret = -ENOENT;
goto err;
}
/* Make sure driver (instead of uCode) is allowed to read EEPROM */
ret = priv->cfg->ops->lib->eeprom_ops.acquire_semaphore(priv);
if (ret < 0) {
IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
ret = -ENOENT;
goto err;
}
/* eeprom is an array of 16bit values */
for (addr = 0; addr < sz; addr += sizeof(u16)) {
u32 r;
_iwl_legacy_write32(priv, CSR_EEPROM_REG,
CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
ret = iwl_poll_bit(priv, CSR_EEPROM_REG,
CSR_EEPROM_REG_READ_VALID_MSK,
CSR_EEPROM_REG_READ_VALID_MSK,
IWL_EEPROM_ACCESS_TIMEOUT);
if (ret < 0) {
IWL_ERR(priv, "Time out reading EEPROM[%d]\n",
addr);
goto done;
}
r = _iwl_legacy_read_direct32(priv, CSR_EEPROM_REG);
e[addr / 2] = cpu_to_le16(r >> 16);
}
IWL_DEBUG_EEPROM(priv, "NVM Type: %s, version: 0x%x\n",
"EEPROM",
iwl_legacy_eeprom_query16(priv, EEPROM_VERSION));
ret = 0;
done:
priv->cfg->ops->lib->eeprom_ops.release_semaphore(priv);
err:
if (ret)
iwl_legacy_eeprom_free(priv);
/* Reset chip to save power until we load uCode during "up". */
iwl_legacy_apm_stop(priv);
alloc_err:
return ret;
}
EXPORT_SYMBOL(iwl_legacy_eeprom_init);
void iwl_legacy_eeprom_free(struct iwl_priv *priv)
{
kfree(priv->eeprom);
priv->eeprom = NULL;
}
EXPORT_SYMBOL(iwl_legacy_eeprom_free);
static void iwl_legacy_init_band_reference(const struct iwl_priv *priv,
int eep_band, int *eeprom_ch_count,
const struct iwl_eeprom_channel **eeprom_ch_info,
const u8 **eeprom_ch_index)
{
u32 offset = priv->cfg->ops->lib->
eeprom_ops.regulatory_bands[eep_band - 1];
switch (eep_band) {
case 1: /* 2.4GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_1);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_1;
break;
case 2: /* 4.9GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_2);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_2;
break;
case 3: /* 5.2GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_3);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_3;
break;
case 4: /* 5.5GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_4);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_4;
break;
case 5: /* 5.7GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_5);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_5;
break;
case 6: /* 2.4GHz ht40 channels */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_6);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_6;
break;
case 7: /* 5 GHz ht40 channels */
*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_7);
*eeprom_ch_info = (struct iwl_eeprom_channel *)
iwl_legacy_eeprom_query_addr(priv, offset);
*eeprom_ch_index = iwl_eeprom_band_7;
break;
default:
BUG();
return;
}
}
#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
? # x " " : "")
/**
* iwl_legacy_mod_ht40_chan_info - Copy ht40 channel info into driver's priv.
*
* Does not set up a command, or touch hardware.
*/
static int iwl_legacy_mod_ht40_chan_info(struct iwl_priv *priv,
enum ieee80211_band band, u16 channel,
const struct iwl_eeprom_channel *eeprom_ch,
u8 clear_ht40_extension_channel)
{
struct iwl_channel_info *ch_info;
ch_info = (struct iwl_channel_info *)
iwl_legacy_get_channel_info(priv, band, channel);
if (!iwl_legacy_is_channel_valid(ch_info))
return -1;
IWL_DEBUG_EEPROM(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
" Ad-Hoc %ssupported\n",
ch_info->channel,
iwl_legacy_is_channel_a_band(ch_info) ?
"5.2" : "2.4",
CHECK_AND_PRINT(IBSS),
CHECK_AND_PRINT(ACTIVE),
CHECK_AND_PRINT(RADAR),
CHECK_AND_PRINT(WIDE),
CHECK_AND_PRINT(DFS),
eeprom_ch->flags,
eeprom_ch->max_power_avg,
((eeprom_ch->flags & EEPROM_CHANNEL_IBSS)
&& !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
"" : "not ");
ch_info->ht40_eeprom = *eeprom_ch;
ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
ch_info->ht40_flags = eeprom_ch->flags;
if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)
ch_info->ht40_extension_channel &=
~clear_ht40_extension_channel;
return 0;
}
#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
? # x " " : "")
/**
* iwl_legacy_init_channel_map - Set up driver's info for all possible channels
*/
int iwl_legacy_init_channel_map(struct iwl_priv *priv)
{
int eeprom_ch_count = 0;
const u8 *eeprom_ch_index = NULL;
const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
int band, ch;
struct iwl_channel_info *ch_info;
if (priv->channel_count) {
IWL_DEBUG_EEPROM(priv, "Channel map already initialized.\n");
return 0;
}
IWL_DEBUG_EEPROM(priv, "Initializing regulatory info from EEPROM\n");
priv->channel_count =
ARRAY_SIZE(iwl_eeprom_band_1) +
ARRAY_SIZE(iwl_eeprom_band_2) +
ARRAY_SIZE(iwl_eeprom_band_3) +
ARRAY_SIZE(iwl_eeprom_band_4) +
ARRAY_SIZE(iwl_eeprom_band_5);
IWL_DEBUG_EEPROM(priv, "Parsing data for %d channels.\n",
priv->channel_count);
priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
priv->channel_count, GFP_KERNEL);
if (!priv->channel_info) {
IWL_ERR(priv, "Could not allocate channel_info\n");
priv->channel_count = 0;
return -ENOMEM;
}
ch_info = priv->channel_info;
/* Loop through the 5 EEPROM bands adding them in order to the
* channel map we maintain (that contains additional information than
* what just in the EEPROM) */
for (band = 1; band <= 5; band++) {
iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count,
&eeprom_ch_info, &eeprom_ch_index);
/* Loop through each band adding each of the channels */
for (ch = 0; ch < eeprom_ch_count; ch++) {
ch_info->channel = eeprom_ch_index[ch];
ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
IEEE80211_BAND_5GHZ;
/* permanently store EEPROM's channel regulatory flags
* and max power in channel info database. */
ch_info->eeprom = eeprom_ch_info[ch];
/* Copy the run-time flags so they are there even on
* invalid channels */
ch_info->flags = eeprom_ch_info[ch].flags;
/* First write that ht40 is not enabled, and then enable
* one by one */
ch_info->ht40_extension_channel =
IEEE80211_CHAN_NO_HT40;
if (!(iwl_legacy_is_channel_valid(ch_info))) {
IWL_DEBUG_EEPROM(priv,
"Ch. %d Flags %x [%sGHz] - "
"No traffic\n",
ch_info->channel,
ch_info->flags,
iwl_legacy_is_channel_a_band(ch_info) ?
"5.2" : "2.4");
ch_info++;
continue;
}
/* Initialize regulatory-based run-time data */
ch_info->max_power_avg = ch_info->curr_txpow =
eeprom_ch_info[ch].max_power_avg;
ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
ch_info->min_power = 0;
IWL_DEBUG_EEPROM(priv, "Ch. %d [%sGHz] "
"%s%s%s%s%s%s(0x%02x %ddBm):"
" Ad-Hoc %ssupported\n",
ch_info->channel,
iwl_legacy_is_channel_a_band(ch_info) ?
"5.2" : "2.4",
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(IBSS),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(WIDE),
CHECK_AND_PRINT_I(DFS),
eeprom_ch_info[ch].flags,
eeprom_ch_info[ch].max_power_avg,
((eeprom_ch_info[ch].
flags & EEPROM_CHANNEL_IBSS)
&& !(eeprom_ch_info[ch].
flags & EEPROM_CHANNEL_RADAR))
? "" : "not ");
/* Set the tx_power_user_lmt to the highest power
* supported by any channel */
if (eeprom_ch_info[ch].max_power_avg >
priv->tx_power_user_lmt)
priv->tx_power_user_lmt =
eeprom_ch_info[ch].max_power_avg;
ch_info++;
}
}
/* Check if we do have HT40 channels */
if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] ==
EEPROM_REGULATORY_BAND_NO_HT40 &&
priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] ==
EEPROM_REGULATORY_BAND_NO_HT40)
return 0;
/* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
for (band = 6; band <= 7; band++) {
enum ieee80211_band ieeeband;
iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count,
&eeprom_ch_info, &eeprom_ch_index);
/* EEPROM band 6 is 2.4, band 7 is 5 GHz */
ieeeband =
(band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
/* Loop through each band adding each of the channels */
for (ch = 0; ch < eeprom_ch_count; ch++) {
/* Set up driver's info for lower half */
iwl_legacy_mod_ht40_chan_info(priv, ieeeband,
eeprom_ch_index[ch],
&eeprom_ch_info[ch],
IEEE80211_CHAN_NO_HT40PLUS);
/* Set up driver's info for upper half */
iwl_legacy_mod_ht40_chan_info(priv, ieeeband,
eeprom_ch_index[ch] + 4,
&eeprom_ch_info[ch],
IEEE80211_CHAN_NO_HT40MINUS);
}
}
return 0;
}
EXPORT_SYMBOL(iwl_legacy_init_channel_map);
/*
* iwl_legacy_free_channel_map - undo allocations in iwl_legacy_init_channel_map
*/
void iwl_legacy_free_channel_map(struct iwl_priv *priv)
{
kfree(priv->channel_info);
priv->channel_count = 0;
}
EXPORT_SYMBOL(iwl_legacy_free_channel_map);
/**
* iwl_legacy_get_channel_info - Find driver's private channel info
*
* Based on band and channel number.
*/
const struct
iwl_channel_info *iwl_legacy_get_channel_info(const struct iwl_priv *priv,
enum ieee80211_band band, u16 channel)
{
int i;
switch (band) {
case IEEE80211_BAND_5GHZ:
for (i = 14; i < priv->channel_count; i++) {
if (priv->channel_info[i].channel == channel)
return &priv->channel_info[i];
}
break;
case IEEE80211_BAND_2GHZ:
if (channel >= 1 && channel <= 14)
return &priv->channel_info[channel - 1];
break;
default:
BUG();
}
return NULL;
}
EXPORT_SYMBOL(iwl_legacy_get_channel_info);

344
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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_legacy_eeprom_h__
#define __iwl_legacy_eeprom_h__
#include <net/mac80211.h>
struct iwl_priv;
/*
* EEPROM access time values:
*
* Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
* Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
* When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
* Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
*/
#define IWL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
#define IWL_EEPROM_SEM_TIMEOUT 10 /* microseconds */
#define IWL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
/*
* Regulatory channel usage flags in EEPROM struct iwl4965_eeprom_channel.flags.
*
* IBSS and/or AP operation is allowed *only* on those channels with
* (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
* RADAR detection is not supported by the 4965 driver, but is a
* requirement for establishing a new network for legal operation on channels
* requiring RADAR detection or restricting ACTIVE scanning.
*
* NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
* It only indicates that 20 MHz channel use is supported; HT40 channel
* usage is indicated by a separate set of regulatory flags for each
* HT40 channel pair.
*
* NOTE: Using a channel inappropriately will result in a uCode error!
*/
#define IWL_NUM_TX_CALIB_GROUPS 5
enum {
EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */
EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */
/* Bit 2 Reserved */
EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */
EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */
EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */
/* Bit 6 Reserved (was Narrow Channel) */
EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */
};
/* SKU Capabilities */
/* 3945 only */
#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
/* *regulatory* channel data format in eeprom, one for each channel.
* There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
struct iwl_eeprom_channel {
u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */
s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
} __packed;
/* 3945 Specific */
#define EEPROM_3945_EEPROM_VERSION (0x2f)
/* 4965 has two radio transmitters (and 3 radio receivers) */
#define EEPROM_TX_POWER_TX_CHAINS (2)
/* 4965 has room for up to 8 sets of txpower calibration data */
#define EEPROM_TX_POWER_BANDS (8)
/* 4965 factory calibration measures txpower gain settings for
* each of 3 target output levels */
#define EEPROM_TX_POWER_MEASUREMENTS (3)
/* 4965 Specific */
/* 4965 driver does not work with txpower calibration version < 5 */
#define EEPROM_4965_TX_POWER_VERSION (5)
#define EEPROM_4965_EEPROM_VERSION (0x2f)
#define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
#define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
/* 2.4 GHz */
extern const u8 iwl_eeprom_band_1[14];
/*
* factory calibration data for one txpower level, on one channel,
* measured on one of the 2 tx chains (radio transmitter and associated
* antenna). EEPROM contains:
*
* 1) Temperature (degrees Celsius) of device when measurement was made.
*
* 2) Gain table index used to achieve the target measurement power.
* This refers to the "well-known" gain tables (see iwl-4965-hw.h).
*
* 3) Actual measured output power, in half-dBm ("34" = 17 dBm).
*
* 4) RF power amplifier detector level measurement (not used).
*/
struct iwl_eeprom_calib_measure {
u8 temperature; /* Device temperature (Celsius) */
u8 gain_idx; /* Index into gain table */
u8 actual_pow; /* Measured RF output power, half-dBm */
s8 pa_det; /* Power amp detector level (not used) */
} __packed;
/*
* measurement set for one channel. EEPROM contains:
*
* 1) Channel number measured
*
* 2) Measurements for each of 3 power levels for each of 2 radio transmitters
* (a.k.a. "tx chains") (6 measurements altogether)
*/
struct iwl_eeprom_calib_ch_info {
u8 ch_num;
struct iwl_eeprom_calib_measure
measurements[EEPROM_TX_POWER_TX_CHAINS]
[EEPROM_TX_POWER_MEASUREMENTS];
} __packed;
/*
* txpower subband info.
*
* For each frequency subband, EEPROM contains the following:
*
* 1) First and last channels within range of the subband. "0" values
* indicate that this sample set is not being used.
*
* 2) Sample measurement sets for 2 channels close to the range endpoints.
*/
struct iwl_eeprom_calib_subband_info {
u8 ch_from; /* channel number of lowest channel in subband */
u8 ch_to; /* channel number of highest channel in subband */
struct iwl_eeprom_calib_ch_info ch1;
struct iwl_eeprom_calib_ch_info ch2;
} __packed;
/*
* txpower calibration info. EEPROM contains:
*
* 1) Factory-measured saturation power levels (maximum levels at which
* tx power amplifier can output a signal without too much distortion).
* There is one level for 2.4 GHz band and one for 5 GHz band. These
* values apply to all channels within each of the bands.
*
* 2) Factory-measured power supply voltage level. This is assumed to be
* constant (i.e. same value applies to all channels/bands) while the
* factory measurements are being made.
*
* 3) Up to 8 sets of factory-measured txpower calibration values.
* These are for different frequency ranges, since txpower gain
* characteristics of the analog radio circuitry vary with frequency.
*
* Not all sets need to be filled with data;
* struct iwl_eeprom_calib_subband_info contains range of channels
* (0 if unused) for each set of data.
*/
struct iwl_eeprom_calib_info {
u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */
u8 saturation_power52; /* half-dBm */
__le16 voltage; /* signed */
struct iwl_eeprom_calib_subband_info
band_info[EEPROM_TX_POWER_BANDS];
} __packed;
/* General */
#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
#define EEPROM_VERSION (2*0x44) /* 2 bytes */
#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */
#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */
#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */
/* The following masks are to be applied on EEPROM_RADIO_CONFIG */
#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */
#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
#define EEPROM_3945_RF_CFG_TYPE_MAX 0x0
#define EEPROM_4965_RF_CFG_TYPE_MAX 0x1
/*
* Per-channel regulatory data.
*
* Each channel that *might* be supported by iwl has a fixed location
* in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
* txpower (MSB).
*
* Entries immediately below are for 20 MHz channel width. HT40 (40 MHz)
* channels (only for 4965, not supported by 3945) appear later in the EEPROM.
*
* 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
*/
#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
/*
* 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
* 5.0 GHz channels 7, 8, 11, 12, 16
* (4915-5080MHz) (none of these is ever supported)
*/
#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
/*
* 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
* (5170-5320MHz)
*/
#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
/*
* 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
* (5500-5700MHz)
*/
#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
/*
* 5.7 GHz channels 145, 149, 153, 157, 161, 165
* (5725-5825MHz)
*/
#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
/*
* 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
*
* The channel listed is the center of the lower 20 MHz half of the channel.
* The overall center frequency is actually 2 channels (10 MHz) above that,
* and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
* from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
* and the overall HT40 channel width centers on channel 3.
*
* NOTE: The RXON command uses 20 MHz channel numbers to specify the
* control channel to which to tune. RXON also specifies whether the
* control channel is the upper or lower half of a HT40 channel.
*
* NOTE: 4965 does not support HT40 channels on 2.4 GHz.
*/
#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */
/*
* 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
* 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
*/
#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */
#define EEPROM_REGULATORY_BAND_NO_HT40 (0)
struct iwl_eeprom_ops {
const u32 regulatory_bands[7];
int (*acquire_semaphore) (struct iwl_priv *priv);
void (*release_semaphore) (struct iwl_priv *priv);
};
int iwl_legacy_eeprom_init(struct iwl_priv *priv);
void iwl_legacy_eeprom_free(struct iwl_priv *priv);
const u8 *iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv,
size_t offset);
u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset);
int iwl_legacy_init_channel_map(struct iwl_priv *priv);
void iwl_legacy_free_channel_map(struct iwl_priv *priv);
const struct iwl_channel_info *iwl_legacy_get_channel_info(
const struct iwl_priv *priv,
enum ieee80211_band band, u16 channel);
#endif /* __iwl_legacy_eeprom_h__ */

513
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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#ifndef __iwl_legacy_fh_h__
#define __iwl_legacy_fh_h__
/****************************/
/* Flow Handler Definitions */
/****************************/
/**
* This I/O area is directly read/writable by driver (e.g. Linux uses writel())
* Addresses are offsets from device's PCI hardware base address.
*/
#define FH_MEM_LOWER_BOUND (0x1000)
#define FH_MEM_UPPER_BOUND (0x2000)
/**
* Keep-Warm (KW) buffer base address.
*
* Driver must allocate a 4KByte buffer that is used by 4965 for keeping the
* host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
* DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host
* from going into a power-savings mode that would cause higher DRAM latency,
* and possible data over/under-runs, before all Tx/Rx is complete.
*
* Driver loads FH_KW_MEM_ADDR_REG with the physical address (bits 35:4)
* of the buffer, which must be 4K aligned. Once this is set up, the 4965
* automatically invokes keep-warm accesses when normal accesses might not
* be sufficient to maintain fast DRAM response.
*
* Bit fields:
* 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned
*/
#define FH_KW_MEM_ADDR_REG (FH_MEM_LOWER_BOUND + 0x97C)
/**
* TFD Circular Buffers Base (CBBC) addresses
*
* 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident
* circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
* (see struct iwl_tfd_frame). These 16 pointer registers are offset by 0x04
* bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
* aligned (address bits 0-7 must be 0).
*
* Bit fields in each pointer register:
* 27-0: TFD CB physical base address [35:8], must be 256-byte aligned
*/
#define FH_MEM_CBBC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
#define FH_MEM_CBBC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10)
/* Find TFD CB base pointer for given queue (range 0-15). */
#define FH_MEM_CBBC_QUEUE(x) (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4)
/**
* Rx SRAM Control and Status Registers (RSCSR)
*
* These registers provide handshake between driver and 4965 for the Rx queue
* (this queue handles *all* command responses, notifications, Rx data, etc.
* sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx
* queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can
* concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
* Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
* mapping between RBDs and RBs.
*
* Driver must allocate host DRAM memory for the following, and set the
* physical address of each into 4965 registers:
*
* 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
* entries (although any power of 2, up to 4096, is selectable by driver).
* Each entry (1 dword) points to a receive buffer (RB) of consistent size
* (typically 4K, although 8K or 16K are also selectable by driver).
* Driver sets up RB size and number of RBDs in the CB via Rx config
* register FH_MEM_RCSR_CHNL0_CONFIG_REG.
*
* Bit fields within one RBD:
* 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned
*
* Driver sets physical address [35:8] of base of RBD circular buffer
* into FH_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
*
* 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers
* (RBs) have been filled, via a "write pointer", actually the index of
* the RB's corresponding RBD within the circular buffer. Driver sets
* physical address [35:4] into FH_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
*
* Bit fields in lower dword of Rx status buffer (upper dword not used
* by driver; see struct iwl4965_shared, val0):
* 31-12: Not used by driver
* 11- 0: Index of last filled Rx buffer descriptor
* (4965 writes, driver reads this value)
*
* As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must
* enter pointers to these RBs into contiguous RBD circular buffer entries,
* and update the 4965's "write" index register,
* FH_RSCSR_CHNL0_RBDCB_WPTR_REG.
*
* This "write" index corresponds to the *next* RBD that the driver will make
* available, i.e. one RBD past the tail of the ready-to-fill RBDs within
* the circular buffer. This value should initially be 0 (before preparing any
* RBs), should be 8 after preparing the first 8 RBs (for example), and must
* wrap back to 0 at the end of the circular buffer (but don't wrap before
* "read" index has advanced past 1! See below).
* NOTE: 4965 EXPECTS THE WRITE INDEX TO BE INCREMENTED IN MULTIPLES OF 8.
*
* As the 4965 fills RBs (referenced from contiguous RBDs within the circular
* buffer), it updates the Rx status buffer in host DRAM, 2) described above,
* to tell the driver the index of the latest filled RBD. The driver must
* read this "read" index from DRAM after receiving an Rx interrupt from 4965.
*
* The driver must also internally keep track of a third index, which is the
* next RBD to process. When receiving an Rx interrupt, driver should process
* all filled but unprocessed RBs up to, but not including, the RB
* corresponding to the "read" index. For example, if "read" index becomes "1",
* driver may process the RB pointed to by RBD 0. Depending on volume of
* traffic, there may be many RBs to process.
*
* If read index == write index, 4965 thinks there is no room to put new data.
* Due to this, the maximum number of filled RBs is 255, instead of 256. To
* be safe, make sure that there is a gap of at least 2 RBDs between "write"
* and "read" indexes; that is, make sure that there are no more than 254
* buffers waiting to be filled.
*/
#define FH_MEM_RSCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xBC0)
#define FH_MEM_RSCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RSCSR_CHNL0 (FH_MEM_RSCSR_LOWER_BOUND)
/**
* Physical base address of 8-byte Rx Status buffer.
* Bit fields:
* 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
*/
#define FH_RSCSR_CHNL0_STTS_WPTR_REG (FH_MEM_RSCSR_CHNL0)
/**
* Physical base address of Rx Buffer Descriptor Circular Buffer.
* Bit fields:
* 27-0: RBD CD physical base address [35:8], must be 256-byte aligned.
*/
#define FH_RSCSR_CHNL0_RBDCB_BASE_REG (FH_MEM_RSCSR_CHNL0 + 0x004)
/**
* Rx write pointer (index, really!).
* Bit fields:
* 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1.
* NOTE: For 256-entry circular buffer, use only bits [7:0].
*/
#define FH_RSCSR_CHNL0_RBDCB_WPTR_REG (FH_MEM_RSCSR_CHNL0 + 0x008)
#define FH_RSCSR_CHNL0_WPTR (FH_RSCSR_CHNL0_RBDCB_WPTR_REG)
/**
* Rx Config/Status Registers (RCSR)
* Rx Config Reg for channel 0 (only channel used)
*
* Driver must initialize FH_MEM_RCSR_CHNL0_CONFIG_REG as follows for
* normal operation (see bit fields).
*
* Clearing FH_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
* Driver should poll FH_MEM_RSSR_RX_STATUS_REG for
* FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
*
* Bit fields:
* 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
* '10' operate normally
* 29-24: reserved
* 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
* min "5" for 32 RBDs, max "12" for 4096 RBDs.
* 19-18: reserved
* 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
* '10' 12K, '11' 16K.
* 15-14: reserved
* 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
* 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
* typical value 0x10 (about 1/2 msec)
* 3- 0: reserved
*/
#define FH_MEM_RCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xCC0)
#define FH_MEM_RCSR_CHNL0 (FH_MEM_RCSR_LOWER_BOUND)
#define FH_MEM_RCSR_CHNL0_CONFIG_REG (FH_MEM_RCSR_CHNL0)
#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK (0x00001000) /* bits 12 */
#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */
#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK (0x00030000) /* bits 16-17 */
#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */
#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31*/
#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS (20)
#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS (4)
#define RX_RB_TIMEOUT (0x10)
#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000)
#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000)
#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000)
#define FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY (0x00000004)
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
#define FH_RSCSR_FRAME_SIZE_MSK (0x00003FFF) /* bits 0-13 */
/**
* Rx Shared Status Registers (RSSR)
*
* After stopping Rx DMA channel (writing 0 to
* FH_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll
* FH_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
*
* Bit fields:
* 24: 1 = Channel 0 is idle
*
* FH_MEM_RSSR_SHARED_CTRL_REG and FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
* contain default values that should not be altered by the driver.
*/
#define FH_MEM_RSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC40)
#define FH_MEM_RSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
#define FH_MEM_RSSR_SHARED_CTRL_REG (FH_MEM_RSSR_LOWER_BOUND)
#define FH_MEM_RSSR_RX_STATUS_REG (FH_MEM_RSSR_LOWER_BOUND + 0x004)
#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\
(FH_MEM_RSSR_LOWER_BOUND + 0x008)
#define FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT 28
/* TFDB Area - TFDs buffer table */
#define FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK (0xFFFFFFFF)
#define FH_TFDIB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x900)
#define FH_TFDIB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x958)
#define FH_TFDIB_CTRL0_REG(_chnl) (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl))
#define FH_TFDIB_CTRL1_REG(_chnl) (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4)
/**
* Transmit DMA Channel Control/Status Registers (TCSR)
*
* 4965 has one configuration register for each of 8 Tx DMA/FIFO channels
* supported in hardware (don't confuse these with the 16 Tx queues in DRAM,
* which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes.
*
* To use a Tx DMA channel, driver must initialize its
* FH_TCSR_CHNL_TX_CONFIG_REG(chnl) with:
*
* FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
* FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL
*
* All other bits should be 0.
*
* Bit fields:
* 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
* '10' operate normally
* 29- 4: Reserved, set to "0"
* 3: Enable internal DMA requests (1, normal operation), disable (0)
* 2- 0: Reserved, set to "0"
*/
#define FH_TCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
#define FH_TCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xE60)
/* Find Control/Status reg for given Tx DMA/FIFO channel */
#define FH49_TCSR_CHNL_NUM (7)
#define FH50_TCSR_CHNL_NUM (8)
/* TCSR: tx_config register values */
#define FH_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
(FH_TCSR_LOWER_BOUND + 0x20 * (_chnl))
#define FH_TCSR_CHNL_TX_CREDIT_REG(_chnl) \
(FH_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x4)
#define FH_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \
(FH_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x8)
#define FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRV (0x00000001)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE (0x00000008)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000)
#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000)
#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20)
#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12)
/**
* Tx Shared Status Registers (TSSR)
*
* After stopping Tx DMA channel (writing 0 to
* FH_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll
* FH_TSSR_TX_STATUS_REG until selected Tx channel is idle
* (channel's buffers empty | no pending requests).
*
* Bit fields:
* 31-24: 1 = Channel buffers empty (channel 7:0)
* 23-16: 1 = No pending requests (channel 7:0)
*/
#define FH_TSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xEA0)
#define FH_TSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xEC0)
#define FH_TSSR_TX_STATUS_REG (FH_TSSR_LOWER_BOUND + 0x010)
/**
* Bit fields for TSSR(Tx Shared Status & Control) error status register:
* 31: Indicates an address error when accessed to internal memory
* uCode/driver must write "1" in order to clear this flag
* 30: Indicates that Host did not send the expected number of dwords to FH
* uCode/driver must write "1" in order to clear this flag
* 16-9:Each status bit is for one channel. Indicates that an (Error) ActDMA
* command was received from the scheduler while the TRB was already full
* with previous command
* uCode/driver must write "1" in order to clear this flag
* 7-0: Each status bit indicates a channel's TxCredit error. When an error
* bit is set, it indicates that the FH has received a full indication
* from the RTC TxFIFO and the current value of the TxCredit counter was
* not equal to zero. This mean that the credit mechanism was not
* synchronized to the TxFIFO status
* uCode/driver must write "1" in order to clear this flag
*/
#define FH_TSSR_TX_ERROR_REG (FH_TSSR_LOWER_BOUND + 0x018)
#define FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) ((1 << (_chnl)) << 16)
/* Tx service channels */
#define FH_SRVC_CHNL (9)
#define FH_SRVC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9C8)
#define FH_SRVC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
#define FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
(FH_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4)
#define FH_TX_CHICKEN_BITS_REG (FH_MEM_LOWER_BOUND + 0xE98)
/* Instruct FH to increment the retry count of a packet when
* it is brought from the memory to TX-FIFO
*/
#define FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN (0x00000002)
#define RX_QUEUE_SIZE 256
#define RX_QUEUE_MASK 255
#define RX_QUEUE_SIZE_LOG 8
/*
* RX related structures and functions
*/
#define RX_FREE_BUFFERS 64
#define RX_LOW_WATERMARK 8
/* Size of one Rx buffer in host DRAM */
#define IWL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */
#define IWL_RX_BUF_SIZE_4K (4 * 1024)
#define IWL_RX_BUF_SIZE_8K (8 * 1024)
/**
* struct iwl_rb_status - reseve buffer status
* host memory mapped FH registers
* @closed_rb_num [0:11] - Indicates the index of the RB which was closed
* @closed_fr_num [0:11] - Indicates the index of the RX Frame which was closed
* @finished_rb_num [0:11] - Indicates the index of the current RB
* in which the last frame was written to
* @finished_fr_num [0:11] - Indicates the index of the RX Frame
* which was transfered
*/
struct iwl_rb_status {
__le16 closed_rb_num;
__le16 closed_fr_num;
__le16 finished_rb_num;
__le16 finished_fr_nam;
__le32 __unused; /* 3945 only */
} __packed;
#define TFD_QUEUE_SIZE_MAX (256)
#define TFD_QUEUE_SIZE_BC_DUP (64)
#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)
#define IWL_TX_DMA_MASK DMA_BIT_MASK(36)
#define IWL_NUM_OF_TBS 20
static inline u8 iwl_legacy_get_dma_hi_addr(dma_addr_t addr)
{
return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF;
}
/**
* struct iwl_tfd_tb transmit buffer descriptor within transmit frame descriptor
*
* This structure contains dma address and length of transmission address
*
* @lo: low [31:0] portion of the dma address of TX buffer
* every even is unaligned on 16 bit boundary
* @hi_n_len 0-3 [35:32] portion of dma
* 4-15 length of the tx buffer
*/
struct iwl_tfd_tb {
__le32 lo;
__le16 hi_n_len;
} __packed;
/**
* struct iwl_tfd
*
* Transmit Frame Descriptor (TFD)
*
* @ __reserved1[3] reserved
* @ num_tbs 0-4 number of active tbs
* 5 reserved
* 6-7 padding (not used)
* @ tbs[20] transmit frame buffer descriptors
* @ __pad padding
*
* Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM.
* Both driver and device share these circular buffers, each of which must be
* contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes
*
* Driver must indicate the physical address of the base of each
* circular buffer via the FH_MEM_CBBC_QUEUE registers.
*
* Each TFD contains pointer/size information for up to 20 data buffers
* in host DRAM. These buffers collectively contain the (one) frame described
* by the TFD. Each buffer must be a single contiguous block of memory within
* itself, but buffers may be scattered in host DRAM. Each buffer has max size
* of (4K - 4). The concatenates all of a TFD's buffers into a single
* Tx frame, up to 8 KBytes in size.
*
* A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx.
*/
struct iwl_tfd {
u8 __reserved1[3];
u8 num_tbs;
struct iwl_tfd_tb tbs[IWL_NUM_OF_TBS];
__le32 __pad;
} __packed;
/* Keep Warm Size */
#define IWL_KW_SIZE 0x1000 /* 4k */
#endif /* !__iwl_legacy_fh_h__ */

271
drivers/net/wireless/iwlegacy/iwl-hcmd.c Normal file
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@ -0,0 +1,271 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <net/mac80211.h>
#include "iwl-dev.h"
#include "iwl-debug.h"
#include "iwl-eeprom.h"
#include "iwl-core.h"
const char *iwl_legacy_get_cmd_string(u8 cmd)
{
switch (cmd) {
IWL_CMD(REPLY_ALIVE);
IWL_CMD(REPLY_ERROR);
IWL_CMD(REPLY_RXON);
IWL_CMD(REPLY_RXON_ASSOC);
IWL_CMD(REPLY_QOS_PARAM);
IWL_CMD(REPLY_RXON_TIMING);
IWL_CMD(REPLY_ADD_STA);
IWL_CMD(REPLY_REMOVE_STA);
IWL_CMD(REPLY_WEPKEY);
IWL_CMD(REPLY_3945_RX);
IWL_CMD(REPLY_TX);
IWL_CMD(REPLY_RATE_SCALE);
IWL_CMD(REPLY_LEDS_CMD);
IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
IWL_CMD(REPLY_CHANNEL_SWITCH);
IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
IWL_CMD(POWER_TABLE_CMD);
IWL_CMD(PM_SLEEP_NOTIFICATION);
IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
IWL_CMD(REPLY_SCAN_CMD);
IWL_CMD(REPLY_SCAN_ABORT_CMD);
IWL_CMD(SCAN_START_NOTIFICATION);
IWL_CMD(SCAN_RESULTS_NOTIFICATION);
IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
IWL_CMD(BEACON_NOTIFICATION);
IWL_CMD(REPLY_TX_BEACON);
IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
IWL_CMD(REPLY_BT_CONFIG);
IWL_CMD(REPLY_STATISTICS_CMD);
IWL_CMD(STATISTICS_NOTIFICATION);
IWL_CMD(CARD_STATE_NOTIFICATION);
IWL_CMD(MISSED_BEACONS_NOTIFICATION);
IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
IWL_CMD(SENSITIVITY_CMD);
IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
IWL_CMD(REPLY_RX_PHY_CMD);
IWL_CMD(REPLY_RX_MPDU_CMD);
IWL_CMD(REPLY_RX);
IWL_CMD(REPLY_COMPRESSED_BA);
default:
return "UNKNOWN";
}
}
EXPORT_SYMBOL(iwl_legacy_get_cmd_string);
#define HOST_COMPLETE_TIMEOUT (HZ / 2)
static void iwl_legacy_generic_cmd_callback(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt)
{
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
return;
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
switch (cmd->hdr.cmd) {
case REPLY_TX_LINK_QUALITY_CMD:
case SENSITIVITY_CMD:
IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
break;
default:
IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
}
#endif
}
static int
iwl_legacy_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
int ret;
BUG_ON(!(cmd->flags & CMD_ASYNC));
/* An asynchronous command can not expect an SKB to be set. */
BUG_ON(cmd->flags & CMD_WANT_SKB);
/* Assign a generic callback if one is not provided */
if (!cmd->callback)
cmd->callback = iwl_legacy_generic_cmd_callback;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EBUSY;
ret = iwl_legacy_enqueue_hcmd(priv, cmd);
if (ret < 0) {
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
iwl_legacy_get_cmd_string(cmd->id), ret);
return ret;
}
return 0;
}
int iwl_legacy_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
int cmd_idx;
int ret;
BUG_ON(cmd->flags & CMD_ASYNC);
/* A synchronous command can not have a callback set. */
BUG_ON(cmd->callback);
IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
iwl_legacy_get_cmd_string(cmd->id));
mutex_lock(&priv->sync_cmd_mutex);
set_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
iwl_legacy_get_cmd_string(cmd->id));
cmd_idx = iwl_legacy_enqueue_hcmd(priv, cmd);
if (cmd_idx < 0) {
ret = cmd_idx;
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
iwl_legacy_get_cmd_string(cmd->id), ret);
goto out;
}
ret = wait_event_interruptible_timeout(priv->wait_command_queue,
!test_bit(STATUS_HCMD_ACTIVE, &priv->status),
HOST_COMPLETE_TIMEOUT);
if (!ret) {
if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
IWL_ERR(priv,
"Error sending %s: time out after %dms.\n",
iwl_legacy_get_cmd_string(cmd->id),
jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv,
"Clearing HCMD_ACTIVE for command %s\n",
iwl_legacy_get_cmd_string(cmd->id));
ret = -ETIMEDOUT;
goto cancel;
}
}
if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
iwl_legacy_get_cmd_string(cmd->id));
ret = -ECANCELED;
goto fail;
}
if (test_bit(STATUS_FW_ERROR, &priv->status)) {
IWL_ERR(priv, "Command %s failed: FW Error\n",
iwl_legacy_get_cmd_string(cmd->id));
ret = -EIO;
goto fail;
}
if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
IWL_ERR(priv, "Error: Response NULL in '%s'\n",
iwl_legacy_get_cmd_string(cmd->id));
ret = -EIO;
goto cancel;
}
ret = 0;
goto out;
cancel:
if (cmd->flags & CMD_WANT_SKB) {
/*
* Cancel the CMD_WANT_SKB flag for the cmd in the
* TX cmd queue. Otherwise in case the cmd comes
* in later, it will possibly set an invalid
* address (cmd->meta.source).
*/
priv->txq[priv->cmd_queue].meta[cmd_idx].flags &=
~CMD_WANT_SKB;
}
fail:
if (cmd->reply_page) {
iwl_legacy_free_pages(priv, cmd->reply_page);
cmd->reply_page = 0;
}
out:
mutex_unlock(&priv->sync_cmd_mutex);
return ret;
}
EXPORT_SYMBOL(iwl_legacy_send_cmd_sync);
int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
if (cmd->flags & CMD_ASYNC)
return iwl_legacy_send_cmd_async(priv, cmd);
return iwl_legacy_send_cmd_sync(priv, cmd);
}
EXPORT_SYMBOL(iwl_legacy_send_cmd);
int
iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
{
struct iwl_host_cmd cmd = {
.id = id,
.len = len,
.data = data,
};
return iwl_legacy_send_cmd_sync(priv, &cmd);
}
EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu);
int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv,
u8 id, u16 len, const void *data,
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt))
{
struct iwl_host_cmd cmd = {
.id = id,
.len = len,
.data = data,
};
cmd.flags |= CMD_ASYNC;
cmd.callback = callback;
return iwl_legacy_send_cmd_async(priv, &cmd);
}
EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu_async);

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/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_helpers_h__
#define __iwl_legacy_helpers_h__
#include <linux/ctype.h>
#include <net/mac80211.h>
#include "iwl-io.h"
#define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
static inline struct ieee80211_conf *iwl_legacy_ieee80211_get_hw_conf(
struct ieee80211_hw *hw)
{
return &hw->conf;
}
/**
* iwl_legacy_queue_inc_wrap - increment queue index, wrap back to beginning
* @index -- current index
* @n_bd -- total number of entries in queue (must be power of 2)
*/
static inline int iwl_legacy_queue_inc_wrap(int index, int n_bd)
{
return ++index & (n_bd - 1);
}
/**
* iwl_legacy_queue_dec_wrap - decrement queue index, wrap back to end
* @index -- current index
* @n_bd -- total number of entries in queue (must be power of 2)
*/
static inline int iwl_legacy_queue_dec_wrap(int index, int n_bd)
{
return --index & (n_bd - 1);
}
/* TODO: Move fw_desc functions to iwl-pci.ko */
static inline void iwl_legacy_free_fw_desc(struct pci_dev *pci_dev,
struct fw_desc *desc)
{
if (desc->v_addr)
dma_free_coherent(&pci_dev->dev, desc->len,
desc->v_addr, desc->p_addr);
desc->v_addr = NULL;
desc->len = 0;
}
static inline int iwl_legacy_alloc_fw_desc(struct pci_dev *pci_dev,
struct fw_desc *desc)
{
if (!desc->len) {
desc->v_addr = NULL;
return -EINVAL;
}
desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len,
&desc->p_addr, GFP_KERNEL);
return (desc->v_addr != NULL) ? 0 : -ENOMEM;
}
/*
* we have 8 bits used like this:
*
* 7 6 5 4 3 2 1 0
* | | | | | | | |
* | | | | | | +-+-------- AC queue (0-3)
* | | | | | |
* | +-+-+-+-+------------ HW queue ID
* |
* +---------------------- unused
*/
static inline void
iwl_legacy_set_swq_id(struct iwl_tx_queue *txq, u8 ac, u8 hwq)
{
BUG_ON(ac > 3); /* only have 2 bits */
BUG_ON(hwq > 31); /* only use 5 bits */
txq->swq_id = (hwq << 2) | ac;
}
static inline void iwl_legacy_wake_queue(struct iwl_priv *priv,
struct iwl_tx_queue *txq)
{
u8 queue = txq->swq_id;
u8 ac = queue & 3;
u8 hwq = (queue >> 2) & 0x1f;
if (test_and_clear_bit(hwq, priv->queue_stopped))
if (atomic_dec_return(&priv->queue_stop_count[ac]) <= 0)
ieee80211_wake_queue(priv->hw, ac);
}
static inline void iwl_legacy_stop_queue(struct iwl_priv *priv,
struct iwl_tx_queue *txq)
{
u8 queue = txq->swq_id;
u8 ac = queue & 3;
u8 hwq = (queue >> 2) & 0x1f;
if (!test_and_set_bit(hwq, priv->queue_stopped))
if (atomic_inc_return(&priv->queue_stop_count[ac]) > 0)
ieee80211_stop_queue(priv->hw, ac);
}
#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
static inline void iwl_legacy_disable_interrupts(struct iwl_priv *priv)
{
clear_bit(STATUS_INT_ENABLED, &priv->status);
/* disable interrupts from uCode/NIC to host */
iwl_write32(priv, CSR_INT_MASK, 0x00000000);
/* acknowledge/clear/reset any interrupts still pending
* from uCode or flow handler (Rx/Tx DMA) */
iwl_write32(priv, CSR_INT, 0xffffffff);
iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
IWL_DEBUG_ISR(priv, "Disabled interrupts\n");
}
static inline void iwl_legacy_enable_interrupts(struct iwl_priv *priv)
{
IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
set_bit(STATUS_INT_ENABLED, &priv->status);
iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
}
/**
* iwl_legacy_beacon_time_mask_low - mask of lower 32 bit of beacon time
* @priv -- pointer to iwl_priv data structure
* @tsf_bits -- number of bits need to shift for masking)
*/
static inline u32 iwl_legacy_beacon_time_mask_low(struct iwl_priv *priv,
u16 tsf_bits)
{
return (1 << tsf_bits) - 1;
}
/**
* iwl_legacy_beacon_time_mask_high - mask of higher 32 bit of beacon time
* @priv -- pointer to iwl_priv data structure
* @tsf_bits -- number of bits need to shift for masking)
*/
static inline u32 iwl_legacy_beacon_time_mask_high(struct iwl_priv *priv,
u16 tsf_bits)
{
return ((1 << (32 - tsf_bits)) - 1) << tsf_bits;
}
#endif /* __iwl_legacy_helpers_h__ */

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/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_io_h__
#define __iwl_legacy_io_h__
#include <linux/io.h>
#include "iwl-dev.h"
#include "iwl-debug.h"
#include "iwl-devtrace.h"
/*
* IO, register, and NIC memory access functions
*
* NOTE on naming convention and macro usage for these
*
* A single _ prefix before a an access function means that no state
* check or debug information is printed when that function is called.
*
* A double __ prefix before an access function means that state is checked
* and the current line number and caller function name are printed in addition
* to any other debug output.
*
* The non-prefixed name is the #define that maps the caller into a
* #define that provides the caller's name and __LINE__ to the double
* prefix version.
*
* If you wish to call the function without any debug or state checking,
* you should use the single _ prefix version (as is used by dependent IO
* routines, for example _iwl_legacy_read_direct32 calls the non-check version of
* _iwl_legacy_read32.)
*
* These declarations are *extremely* useful in quickly isolating code deltas
* which result in misconfiguration of the hardware I/O. In combination with
* git-bisect and the IO debug level you can quickly determine the specific
* commit which breaks the IO sequence to the hardware.
*
*/
static inline void _iwl_legacy_write8(struct iwl_priv *priv, u32 ofs, u8 val)
{
trace_iwlwifi_legacy_dev_iowrite8(priv, ofs, val);
iowrite8(val, priv->hw_base + ofs);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline void
__iwl_legacy_write8(const char *f, u32 l, struct iwl_priv *priv,
u32 ofs, u8 val)
{
IWL_DEBUG_IO(priv, "write8(0x%08X, 0x%02X) - %s %d\n", ofs, val, f, l);
_iwl_legacy_write8(priv, ofs, val);
}
#define iwl_write8(priv, ofs, val) \
__iwl_legacy_write8(__FILE__, __LINE__, priv, ofs, val)
#else
#define iwl_write8(priv, ofs, val) _iwl_legacy_write8(priv, ofs, val)
#endif
static inline void _iwl_legacy_write32(struct iwl_priv *priv, u32 ofs, u32 val)
{
trace_iwlwifi_legacy_dev_iowrite32(priv, ofs, val);
iowrite32(val, priv->hw_base + ofs);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline void
__iwl_legacy_write32(const char *f, u32 l, struct iwl_priv *priv,
u32 ofs, u32 val)
{
IWL_DEBUG_IO(priv, "write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l);
_iwl_legacy_write32(priv, ofs, val);
}
#define iwl_write32(priv, ofs, val) \
__iwl_legacy_write32(__FILE__, __LINE__, priv, ofs, val)
#else
#define iwl_write32(priv, ofs, val) _iwl_legacy_write32(priv, ofs, val)
#endif
static inline u32 _iwl_legacy_read32(struct iwl_priv *priv, u32 ofs)
{
u32 val = ioread32(priv->hw_base + ofs);
trace_iwlwifi_legacy_dev_ioread32(priv, ofs, val);
return val;
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline u32
__iwl_legacy_read32(char *f, u32 l, struct iwl_priv *priv, u32 ofs)
{
IWL_DEBUG_IO(priv, "read_direct32(0x%08X) - %s %d\n", ofs, f, l);
return _iwl_legacy_read32(priv, ofs);
}
#define iwl_read32(priv, ofs) __iwl_legacy_read32(__FILE__, __LINE__, priv, ofs)
#else
#define iwl_read32(p, o) _iwl_legacy_read32(p, o)
#endif
#define IWL_POLL_INTERVAL 10 /* microseconds */
static inline int
_iwl_legacy_poll_bit(struct iwl_priv *priv, u32 addr,
u32 bits, u32 mask, int timeout)
{
int t = 0;
do {
if ((_iwl_legacy_read32(priv, addr) & mask) == (bits & mask))
return t;
udelay(IWL_POLL_INTERVAL);
t += IWL_POLL_INTERVAL;
} while (t < timeout);
return -ETIMEDOUT;
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline int __iwl_legacy_poll_bit(const char *f, u32 l,
struct iwl_priv *priv, u32 addr,
u32 bits, u32 mask, int timeout)
{
int ret = _iwl_legacy_poll_bit(priv, addr, bits, mask, timeout);
IWL_DEBUG_IO(priv, "poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n",
addr, bits, mask,
unlikely(ret == -ETIMEDOUT) ? "timeout" : "", f, l);
return ret;
}
#define iwl_poll_bit(priv, addr, bits, mask, timeout) \
__iwl_legacy_poll_bit(__FILE__, __LINE__, priv, addr, \
bits, mask, timeout)
#else
#define iwl_poll_bit(p, a, b, m, t) _iwl_legacy_poll_bit(p, a, b, m, t)
#endif
static inline void _iwl_legacy_set_bit(struct iwl_priv *priv, u32 reg, u32 mask)
{
_iwl_legacy_write32(priv, reg, _iwl_legacy_read32(priv, reg) | mask);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline void __iwl_legacy_set_bit(const char *f, u32 l,
struct iwl_priv *priv, u32 reg, u32 mask)
{
u32 val = _iwl_legacy_read32(priv, reg) | mask;
IWL_DEBUG_IO(priv, "set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg,
mask, val);
_iwl_legacy_write32(priv, reg, val);
}
static inline void iwl_legacy_set_bit(struct iwl_priv *p, u32 r, u32 m)
{
unsigned long reg_flags;
spin_lock_irqsave(&p->reg_lock, reg_flags);
__iwl_legacy_set_bit(__FILE__, __LINE__, p, r, m);
spin_unlock_irqrestore(&p->reg_lock, reg_flags);
}
#else
static inline void iwl_legacy_set_bit(struct iwl_priv *p, u32 r, u32 m)
{
unsigned long reg_flags;
spin_lock_irqsave(&p->reg_lock, reg_flags);
_iwl_legacy_set_bit(p, r, m);
spin_unlock_irqrestore(&p->reg_lock, reg_flags);
}
#endif
static inline void
_iwl_legacy_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask)
{
_iwl_legacy_write32(priv, reg, _iwl_legacy_read32(priv, reg) & ~mask);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline void
__iwl_legacy_clear_bit(const char *f, u32 l,
struct iwl_priv *priv, u32 reg, u32 mask)
{
u32 val = _iwl_legacy_read32(priv, reg) & ~mask;
IWL_DEBUG_IO(priv, "clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
_iwl_legacy_write32(priv, reg, val);
}
static inline void iwl_legacy_clear_bit(struct iwl_priv *p, u32 r, u32 m)
{
unsigned long reg_flags;
spin_lock_irqsave(&p->reg_lock, reg_flags);
__iwl_legacy_clear_bit(__FILE__, __LINE__, p, r, m);
spin_unlock_irqrestore(&p->reg_lock, reg_flags);
}
#else
static inline void iwl_legacy_clear_bit(struct iwl_priv *p, u32 r, u32 m)
{
unsigned long reg_flags;
spin_lock_irqsave(&p->reg_lock, reg_flags);
_iwl_legacy_clear_bit(p, r, m);
spin_unlock_irqrestore(&p->reg_lock, reg_flags);
}
#endif
static inline int _iwl_legacy_grab_nic_access(struct iwl_priv *priv)
{
int ret;
u32 val;
/* this bit wakes up the NIC */
_iwl_legacy_set_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
/*
* These bits say the device is running, and should keep running for
* at least a short while (at least as long as MAC_ACCESS_REQ stays 1),
* but they do not indicate that embedded SRAM is restored yet;
* 3945 and 4965 have volatile SRAM, and must save/restore contents
* to/from host DRAM when sleeping/waking for power-saving.
* Each direction takes approximately 1/4 millisecond; with this
* overhead, it's a good idea to grab and hold MAC_ACCESS_REQUEST if a
* series of register accesses are expected (e.g. reading Event Log),
* to keep device from sleeping.
*
* CSR_UCODE_DRV_GP1 register bit MAC_SLEEP == 0 indicates that
* SRAM is okay/restored. We don't check that here because this call
* is just for hardware register access; but GP1 MAC_SLEEP check is a
* good idea before accessing 3945/4965 SRAM (e.g. reading Event Log).
*
*/
ret = _iwl_legacy_poll_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
(CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000);
if (ret < 0) {
val = _iwl_legacy_read32(priv, CSR_GP_CNTRL);
IWL_ERR(priv,
"MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
_iwl_legacy_write32(priv, CSR_RESET,
CSR_RESET_REG_FLAG_FORCE_NMI);
return -EIO;
}
return 0;
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline int __iwl_legacy_grab_nic_access(const char *f, u32 l,
struct iwl_priv *priv)
{
IWL_DEBUG_IO(priv, "grabbing nic access - %s %d\n", f, l);
return _iwl_legacy_grab_nic_access(priv);
}
#define iwl_grab_nic_access(priv) \
__iwl_legacy_grab_nic_access(__FILE__, __LINE__, priv)
#else
#define iwl_grab_nic_access(priv) \
_iwl_legacy_grab_nic_access(priv)
#endif
static inline void _iwl_legacy_release_nic_access(struct iwl_priv *priv)
{
_iwl_legacy_clear_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline void __iwl_legacy_release_nic_access(const char *f, u32 l,
struct iwl_priv *priv)
{
IWL_DEBUG_IO(priv, "releasing nic access - %s %d\n", f, l);
_iwl_legacy_release_nic_access(priv);
}
#define iwl_release_nic_access(priv) \
__iwl_legacy_release_nic_access(__FILE__, __LINE__, priv)
#else
#define iwl_release_nic_access(priv) \
_iwl_legacy_release_nic_access(priv)
#endif
static inline u32 _iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg)
{
return _iwl_legacy_read32(priv, reg);
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline u32 __iwl_legacy_read_direct32(const char *f, u32 l,
struct iwl_priv *priv, u32 reg)
{
u32 value = _iwl_legacy_read_direct32(priv, reg);
IWL_DEBUG_IO(priv,
"read_direct32(0x%4X) = 0x%08x - %s %d\n", reg, value,
f, l);
return value;
}
static inline u32 iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg)
{
u32 value;
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
value = __iwl_legacy_read_direct32(__FILE__, __LINE__, priv, reg);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
return value;
}
#else
static inline u32 iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg)
{
u32 value;
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
value = _iwl_legacy_read_direct32(priv, reg);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
return value;
}
#endif
static inline void _iwl_legacy_write_direct32(struct iwl_priv *priv,
u32 reg, u32 value)
{
_iwl_legacy_write32(priv, reg, value);
}
static inline void
iwl_legacy_write_direct32(struct iwl_priv *priv, u32 reg, u32 value)
{
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
if (!iwl_grab_nic_access(priv)) {
_iwl_legacy_write_direct32(priv, reg, value);
iwl_release_nic_access(priv);
}
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
static inline void iwl_legacy_write_reg_buf(struct iwl_priv *priv,
u32 reg, u32 len, u32 *values)
{
u32 count = sizeof(u32);
if ((priv != NULL) && (values != NULL)) {
for (; 0 < len; len -= count, reg += count, values++)
iwl_legacy_write_direct32(priv, reg, *values);
}
}
static inline int _iwl_legacy_poll_direct_bit(struct iwl_priv *priv, u32 addr,
u32 mask, int timeout)
{
int t = 0;
do {
if ((iwl_legacy_read_direct32(priv, addr) & mask) == mask)
return t;
udelay(IWL_POLL_INTERVAL);
t += IWL_POLL_INTERVAL;
} while (t < timeout);
return -ETIMEDOUT;
}
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static inline int __iwl_legacy_poll_direct_bit(const char *f, u32 l,
struct iwl_priv *priv,
u32 addr, u32 mask, int timeout)
{
int ret = _iwl_legacy_poll_direct_bit(priv, addr, mask, timeout);
if (unlikely(ret == -ETIMEDOUT))
IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) - "
"timedout - %s %d\n", addr, mask, f, l);
else
IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) = 0x%08X "
"- %s %d\n", addr, mask, ret, f, l);
return ret;
}
#define iwl_poll_direct_bit(priv, addr, mask, timeout) \
__iwl_legacy_poll_direct_bit(__FILE__, __LINE__, priv, addr, mask, timeout)
#else
#define iwl_poll_direct_bit _iwl_legacy_poll_direct_bit
#endif
static inline u32 _iwl_legacy_read_prph(struct iwl_priv *priv, u32 reg)
{
_iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
rmb();
return _iwl_legacy_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
}
static inline u32 iwl_legacy_read_prph(struct iwl_priv *priv, u32 reg)
{
unsigned long reg_flags;
u32 val;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
val = _iwl_legacy_read_prph(priv, reg);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
return val;
}
static inline void _iwl_legacy_write_prph(struct iwl_priv *priv,
u32 addr, u32 val)
{
_iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
((addr & 0x0000FFFF) | (3 << 24)));
wmb();
_iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
}
static inline void
iwl_legacy_write_prph(struct iwl_priv *priv, u32 addr, u32 val)
{
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
if (!iwl_grab_nic_access(priv)) {
_iwl_legacy_write_prph(priv, addr, val);
iwl_release_nic_access(priv);
}
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
#define _iwl_legacy_set_bits_prph(priv, reg, mask) \
_iwl_legacy_write_prph(priv, reg, (_iwl_legacy_read_prph(priv, reg) | mask))
static inline void
iwl_legacy_set_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask)
{
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
_iwl_legacy_set_bits_prph(priv, reg, mask);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
#define _iwl_legacy_set_bits_mask_prph(priv, reg, bits, mask) \
_iwl_legacy_write_prph(priv, reg, \
((_iwl_legacy_read_prph(priv, reg) & mask) | bits))
static inline void iwl_legacy_set_bits_mask_prph(struct iwl_priv *priv, u32 reg,
u32 bits, u32 mask)
{
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
_iwl_legacy_set_bits_mask_prph(priv, reg, bits, mask);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
static inline void iwl_legacy_clear_bits_prph(struct iwl_priv
*priv, u32 reg, u32 mask)
{
unsigned long reg_flags;
u32 val;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
val = _iwl_legacy_read_prph(priv, reg);
_iwl_legacy_write_prph(priv, reg, (val & ~mask));
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
static inline u32 iwl_legacy_read_targ_mem(struct iwl_priv *priv, u32 addr)
{
unsigned long reg_flags;
u32 value;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
iwl_grab_nic_access(priv);
_iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
rmb();
value = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
return value;
}
static inline void
iwl_legacy_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val)
{
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
if (!iwl_grab_nic_access(priv)) {
_iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
wmb();
_iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
iwl_release_nic_access(priv);
}
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
static inline void
iwl_legacy_write_targ_mem_buf(struct iwl_priv *priv, u32 addr,
u32 len, u32 *values)
{
unsigned long reg_flags;
spin_lock_irqsave(&priv->reg_lock, reg_flags);
if (!iwl_grab_nic_access(priv)) {
_iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
wmb();
for (; 0 < len; len -= sizeof(u32), values++)
_iwl_legacy_write_direct32(priv,
HBUS_TARG_MEM_WDAT, *values);
iwl_release_nic_access(priv);
}
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}
#endif

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drivers/net/wireless/iwlegacy/iwl-led.c Normal file
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/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
/* default: IWL_LED_BLINK(0) using blinking index table */
static int led_mode;
module_param(led_mode, int, S_IRUGO);
MODULE_PARM_DESC(led_mode, "0=system default, "
"1=On(RF On)/Off(RF Off), 2=blinking");
static const struct ieee80211_tpt_blink iwl_blink[] = {
{ .throughput = 0 * 1024 - 1, .blink_time = 334 },
{ .throughput = 1 * 1024 - 1, .blink_time = 260 },
{ .throughput = 5 * 1024 - 1, .blink_time = 220 },
{ .throughput = 10 * 1024 - 1, .blink_time = 190 },
{ .throughput = 20 * 1024 - 1, .blink_time = 170 },
{ .throughput = 50 * 1024 - 1, .blink_time = 150 },
{ .throughput = 70 * 1024 - 1, .blink_time = 130 },
{ .throughput = 100 * 1024 - 1, .blink_time = 110 },
{ .throughput = 200 * 1024 - 1, .blink_time = 80 },
{ .throughput = 300 * 1024 - 1, .blink_time = 50 },
};
/*
* Adjust led blink rate to compensate on a MAC Clock difference on every HW
* Led blink rate analysis showed an average deviation of 0% on 3945,
* 5% on 4965 HW.
* Need to compensate on the led on/off time per HW according to the deviation
* to achieve the desired led frequency
* The calculation is: (100-averageDeviation)/100 * blinkTime
* For code efficiency the calculation will be:
* compensation = (100 - averageDeviation) * 64 / 100
* NewBlinkTime = (compensation * BlinkTime) / 64
*/
static inline u8 iwl_legacy_blink_compensation(struct iwl_priv *priv,
u8 time, u16 compensation)
{
if (!compensation) {
IWL_ERR(priv, "undefined blink compensation: "
"use pre-defined blinking time\n");
return time;
}
return (u8)((time * compensation) >> 6);
}
/* Set led pattern command */
static int iwl_legacy_led_cmd(struct iwl_priv *priv,
unsigned long on,
unsigned long off)
{
struct iwl_led_cmd led_cmd = {
.id = IWL_LED_LINK,
.interval = IWL_DEF_LED_INTRVL
};
int ret;
if (!test_bit(STATUS_READY, &priv->status))
return -EBUSY;
if (priv->blink_on == on && priv->blink_off == off)
return 0;
IWL_DEBUG_LED(priv, "Led blink time compensation=%u\n",
priv->cfg->base_params->led_compensation);
led_cmd.on = iwl_legacy_blink_compensation(priv, on,
priv->cfg->base_params->led_compensation);
led_cmd.off = iwl_legacy_blink_compensation(priv, off,
priv->cfg->base_params->led_compensation);
ret = priv->cfg->ops->led->cmd(priv, &led_cmd);
if (!ret) {
priv->blink_on = on;
priv->blink_off = off;
}
return ret;
}
static void iwl_legacy_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
unsigned long on = 0;
if (brightness > 0)
on = IWL_LED_SOLID;
iwl_legacy_led_cmd(priv, on, 0);
}
static int iwl_legacy_led_blink_set(struct led_classdev *led_cdev,
unsigned long *delay_on,
unsigned long *delay_off)
{
struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
return iwl_legacy_led_cmd(priv, *delay_on, *delay_off);
}
void iwl_legacy_leds_init(struct iwl_priv *priv)
{
int mode = led_mode;
int ret;
if (mode == IWL_LED_DEFAULT)
mode = priv->cfg->led_mode;
priv->led.name = kasprintf(GFP_KERNEL, "%s-led",
wiphy_name(priv->hw->wiphy));
priv->led.brightness_set = iwl_legacy_led_brightness_set;
priv->led.blink_set = iwl_legacy_led_blink_set;
priv->led.max_brightness = 1;
switch (mode) {
case IWL_LED_DEFAULT:
WARN_ON(1);
break;
case IWL_LED_BLINK:
priv->led.default_trigger =
ieee80211_create_tpt_led_trigger(priv->hw,
IEEE80211_TPT_LEDTRIG_FL_CONNECTED,
iwl_blink, ARRAY_SIZE(iwl_blink));
break;
case IWL_LED_RF_STATE:
priv->led.default_trigger =
ieee80211_get_radio_led_name(priv->hw);
break;
}
ret = led_classdev_register(&priv->pci_dev->dev, &priv->led);
if (ret) {
kfree(priv->led.name);
return;
}
priv->led_registered = true;
}
EXPORT_SYMBOL(iwl_legacy_leds_init);
void iwl_legacy_leds_exit(struct iwl_priv *priv)
{
if (!priv->led_registered)
return;
led_classdev_unregister(&priv->led);
kfree(priv->led.name);
}
EXPORT_SYMBOL(iwl_legacy_leds_exit);

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drivers/net/wireless/iwlegacy/iwl-led.h Normal file
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/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_leds_h__
#define __iwl_legacy_leds_h__
struct iwl_priv;
#define IWL_LED_SOLID 11
#define IWL_DEF_LED_INTRVL cpu_to_le32(1000)
#define IWL_LED_ACTIVITY (0<<1)
#define IWL_LED_LINK (1<<1)
/*
* LED mode
* IWL_LED_DEFAULT: use device default
* IWL_LED_RF_STATE: turn LED on/off based on RF state
* LED ON = RF ON
* LED OFF = RF OFF
* IWL_LED_BLINK: adjust led blink rate based on blink table
*/
enum iwl_led_mode {
IWL_LED_DEFAULT,
IWL_LED_RF_STATE,
IWL_LED_BLINK,
};
void iwl_legacy_leds_init(struct iwl_priv *priv);
void iwl_legacy_leds_exit(struct iwl_priv *priv);
#endif /* __iwl_legacy_leds_h__ */

456
drivers/net/wireless/iwlegacy/iwl-legacy-rs.h Normal file
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/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_rs_h__
#define __iwl_legacy_rs_h__
struct iwl_rate_info {
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
};
struct iwl3945_rate_info {
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
u8 table_rs_index; /* index in rate scale table cmd */
u8 prev_table_rs; /* prev in rate table cmd */
};
/*
* These serve as indexes into
* struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
*/
enum {
IWL_RATE_1M_INDEX = 0,
IWL_RATE_2M_INDEX,
IWL_RATE_5M_INDEX,
IWL_RATE_11M_INDEX,
IWL_RATE_6M_INDEX,
IWL_RATE_9M_INDEX,
IWL_RATE_12M_INDEX,
IWL_RATE_18M_INDEX,
IWL_RATE_24M_INDEX,
IWL_RATE_36M_INDEX,
IWL_RATE_48M_INDEX,
IWL_RATE_54M_INDEX,
IWL_RATE_60M_INDEX,
IWL_RATE_COUNT,
IWL_RATE_COUNT_LEGACY = IWL_RATE_COUNT - 1, /* Excluding 60M */
IWL_RATE_COUNT_3945 = IWL_RATE_COUNT - 1,
IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
IWL_RATE_INVALID = IWL_RATE_COUNT,
};
enum {
IWL_RATE_6M_INDEX_TABLE = 0,
IWL_RATE_9M_INDEX_TABLE,
IWL_RATE_12M_INDEX_TABLE,
IWL_RATE_18M_INDEX_TABLE,
IWL_RATE_24M_INDEX_TABLE,
IWL_RATE_36M_INDEX_TABLE,
IWL_RATE_48M_INDEX_TABLE,
IWL_RATE_54M_INDEX_TABLE,
IWL_RATE_1M_INDEX_TABLE,
IWL_RATE_2M_INDEX_TABLE,
IWL_RATE_5M_INDEX_TABLE,
IWL_RATE_11M_INDEX_TABLE,
IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1,
};
enum {
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
IWL39_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
};
/* #define vs. enum to keep from defaulting to 'large integer' */
#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX)
#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX)
#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX)
#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX)
#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX)
#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX)
#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX)
#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX)
#define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX)
#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX)
#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX)
#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX)
#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX)
/* uCode API values for legacy bit rates, both OFDM and CCK */
enum {
IWL_RATE_6M_PLCP = 13,
IWL_RATE_9M_PLCP = 15,
IWL_RATE_12M_PLCP = 5,
IWL_RATE_18M_PLCP = 7,
IWL_RATE_24M_PLCP = 9,
IWL_RATE_36M_PLCP = 11,
IWL_RATE_48M_PLCP = 1,
IWL_RATE_54M_PLCP = 3,
IWL_RATE_60M_PLCP = 3,/*FIXME:RS:should be removed*/
IWL_RATE_1M_PLCP = 10,
IWL_RATE_2M_PLCP = 20,
IWL_RATE_5M_PLCP = 55,
IWL_RATE_11M_PLCP = 110,
/*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/
};
/* uCode API values for OFDM high-throughput (HT) bit rates */
enum {
IWL_RATE_SISO_6M_PLCP = 0,
IWL_RATE_SISO_12M_PLCP = 1,
IWL_RATE_SISO_18M_PLCP = 2,
IWL_RATE_SISO_24M_PLCP = 3,
IWL_RATE_SISO_36M_PLCP = 4,
IWL_RATE_SISO_48M_PLCP = 5,
IWL_RATE_SISO_54M_PLCP = 6,
IWL_RATE_SISO_60M_PLCP = 7,
IWL_RATE_MIMO2_6M_PLCP = 0x8,
IWL_RATE_MIMO2_12M_PLCP = 0x9,
IWL_RATE_MIMO2_18M_PLCP = 0xa,
IWL_RATE_MIMO2_24M_PLCP = 0xb,
IWL_RATE_MIMO2_36M_PLCP = 0xc,
IWL_RATE_MIMO2_48M_PLCP = 0xd,
IWL_RATE_MIMO2_54M_PLCP = 0xe,
IWL_RATE_MIMO2_60M_PLCP = 0xf,
IWL_RATE_SISO_INVM_PLCP,
IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
};
/* MAC header values for bit rates */
enum {
IWL_RATE_6M_IEEE = 12,
IWL_RATE_9M_IEEE = 18,
IWL_RATE_12M_IEEE = 24,
IWL_RATE_18M_IEEE = 36,
IWL_RATE_24M_IEEE = 48,
IWL_RATE_36M_IEEE = 72,
IWL_RATE_48M_IEEE = 96,
IWL_RATE_54M_IEEE = 108,
IWL_RATE_60M_IEEE = 120,
IWL_RATE_1M_IEEE = 2,
IWL_RATE_2M_IEEE = 4,
IWL_RATE_5M_IEEE = 11,
IWL_RATE_11M_IEEE = 22,
};
#define IWL_CCK_BASIC_RATES_MASK \
(IWL_RATE_1M_MASK | \
IWL_RATE_2M_MASK)
#define IWL_CCK_RATES_MASK \
(IWL_CCK_BASIC_RATES_MASK | \
IWL_RATE_5M_MASK | \
IWL_RATE_11M_MASK)
#define IWL_OFDM_BASIC_RATES_MASK \
(IWL_RATE_6M_MASK | \
IWL_RATE_12M_MASK | \
IWL_RATE_24M_MASK)
#define IWL_OFDM_RATES_MASK \
(IWL_OFDM_BASIC_RATES_MASK | \
IWL_RATE_9M_MASK | \
IWL_RATE_18M_MASK | \
IWL_RATE_36M_MASK | \
IWL_RATE_48M_MASK | \
IWL_RATE_54M_MASK)
#define IWL_BASIC_RATES_MASK \
(IWL_OFDM_BASIC_RATES_MASK | \
IWL_CCK_BASIC_RATES_MASK)
#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
#define IWL_RATES_MASK_3945 ((1 << IWL_RATE_COUNT_3945) - 1)
#define IWL_INVALID_VALUE -1
#define IWL_MIN_RSSI_VAL -100
#define IWL_MAX_RSSI_VAL 0
/* These values specify how many Tx frame attempts before
* searching for a new modulation mode */
#define IWL_LEGACY_FAILURE_LIMIT 160
#define IWL_LEGACY_SUCCESS_LIMIT 480
#define IWL_LEGACY_TABLE_COUNT 160
#define IWL_NONE_LEGACY_FAILURE_LIMIT 400
#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500
#define IWL_NONE_LEGACY_TABLE_COUNT 1500
/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
#define IWL_RS_GOOD_RATIO 12800 /* 100% */
#define IWL_RATE_SCALE_SWITCH 10880 /* 85% */
#define IWL_RATE_HIGH_TH 10880 /* 85% */
#define IWL_RATE_INCREASE_TH 6400 /* 50% */
#define IWL_RATE_DECREASE_TH 1920 /* 15% */
/* possible actions when in legacy mode */
#define IWL_LEGACY_SWITCH_ANTENNA1 0
#define IWL_LEGACY_SWITCH_ANTENNA2 1
#define IWL_LEGACY_SWITCH_SISO 2
#define IWL_LEGACY_SWITCH_MIMO2_AB 3
#define IWL_LEGACY_SWITCH_MIMO2_AC 4
#define IWL_LEGACY_SWITCH_MIMO2_BC 5
/* possible actions when in siso mode */
#define IWL_SISO_SWITCH_ANTENNA1 0
#define IWL_SISO_SWITCH_ANTENNA2 1
#define IWL_SISO_SWITCH_MIMO2_AB 2
#define IWL_SISO_SWITCH_MIMO2_AC 3
#define IWL_SISO_SWITCH_MIMO2_BC 4
#define IWL_SISO_SWITCH_GI 5
/* possible actions when in mimo mode */
#define IWL_MIMO2_SWITCH_ANTENNA1 0
#define IWL_MIMO2_SWITCH_ANTENNA2 1
#define IWL_MIMO2_SWITCH_SISO_A 2
#define IWL_MIMO2_SWITCH_SISO_B 3
#define IWL_MIMO2_SWITCH_SISO_C 4
#define IWL_MIMO2_SWITCH_GI 5
#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_GI
#define IWL_ACTION_LIMIT 3 /* # possible actions */
#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
/* load per tid defines for A-MPDU activation */
#define IWL_AGG_TPT_THREHOLD 0
#define IWL_AGG_LOAD_THRESHOLD 10
#define IWL_AGG_ALL_TID 0xff
#define TID_QUEUE_CELL_SPACING 50 /*mS */
#define TID_QUEUE_MAX_SIZE 20
#define TID_ROUND_VALUE 5 /* mS */
#define TID_MAX_LOAD_COUNT 8
#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
enum iwl_table_type {
LQ_NONE,
LQ_G, /* legacy types */
LQ_A,
LQ_SISO, /* high-throughput types */
LQ_MIMO2,
LQ_MAX,
};
#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
#define is_siso(tbl) ((tbl) == LQ_SISO)
#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
#define is_mimo(tbl) (is_mimo2(tbl))
#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
#define is_a_band(tbl) ((tbl) == LQ_A)
#define is_g_and(tbl) ((tbl) == LQ_G)
#define ANT_NONE 0x0
#define ANT_A BIT(0)
#define ANT_B BIT(1)
#define ANT_AB (ANT_A | ANT_B)
#define ANT_C BIT(2)
#define ANT_AC (ANT_A | ANT_C)
#define ANT_BC (ANT_B | ANT_C)
#define ANT_ABC (ANT_AB | ANT_C)
#define IWL_MAX_MCS_DISPLAY_SIZE 12
struct iwl_rate_mcs_info {
char mbps[IWL_MAX_MCS_DISPLAY_SIZE];
char mcs[IWL_MAX_MCS_DISPLAY_SIZE];
};
/**
* struct iwl_rate_scale_data -- tx success history for one rate
*/
struct iwl_rate_scale_data {
u64 data; /* bitmap of successful frames */
s32 success_counter; /* number of frames successful */
s32 success_ratio; /* per-cent * 128 */
s32 counter; /* number of frames attempted */
s32 average_tpt; /* success ratio * expected throughput */
unsigned long stamp;
};
/**
* struct iwl_scale_tbl_info -- tx params and success history for all rates
*
* There are two of these in struct iwl_lq_sta,
* one for "active", and one for "search".
*/
struct iwl_scale_tbl_info {
enum iwl_table_type lq_type;
u8 ant_type;
u8 is_SGI; /* 1 = short guard interval */
u8 is_ht40; /* 1 = 40 MHz channel width */
u8 is_dup; /* 1 = duplicated data streams */
u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
u8 max_search; /* maximun number of tables we can search */
s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
u32 current_rate; /* rate_n_flags, uCode API format */
struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
};
struct iwl_traffic_load {
unsigned long time_stamp; /* age of the oldest statistics */
u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
* slice */
u32 total; /* total num of packets during the
* last TID_MAX_TIME_DIFF */
u8 queue_count; /* number of queues that has
* been used since the last cleanup */
u8 head; /* start of the circular buffer */
};
/**
* struct iwl_lq_sta -- driver's rate scaling private structure
*
* Pointer to this gets passed back and forth between driver and mac80211.
*/
struct iwl_lq_sta {
u8 active_tbl; /* index of active table, range 0-1 */
u8 enable_counter; /* indicates HT mode */
u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */
u8 search_better_tbl; /* 1: currently trying alternate mode */
s32 last_tpt;
/* The following determine when to search for a new mode */
u32 table_count_limit;
u32 max_failure_limit; /* # failed frames before new search */
u32 max_success_limit; /* # successful frames before new search */
u32 table_count;
u32 total_failed; /* total failed frames, any/all rates */
u32 total_success; /* total successful frames, any/all rates */
u64 flush_timer; /* time staying in mode before new search */
u8 action_counter; /* # mode-switch actions tried */
u8 is_green;
u8 is_dup;
enum ieee80211_band band;
/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
u32 supp_rates;
u16 active_legacy_rate;
u16 active_siso_rate;
u16 active_mimo2_rate;
s8 max_rate_idx; /* Max rate set by user */
u8 missed_rate_counter;
struct iwl_link_quality_cmd lq;
struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
struct iwl_traffic_load load[TID_MAX_LOAD_COUNT];
u8 tx_agg_tid_en;
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *rs_sta_dbgfs_scale_table_file;
struct dentry *rs_sta_dbgfs_stats_table_file;
struct dentry *rs_sta_dbgfs_rate_scale_data_file;
struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
u32 dbg_fixed_rate;
#endif
struct iwl_priv *drv;
/* used to be in sta_info */
int last_txrate_idx;
/* last tx rate_n_flags */
u32 last_rate_n_flags;
/* packets destined for this STA are aggregated */
u8 is_agg;
};
static inline u8 iwl4965_num_of_ant(u8 mask)
{
return !!((mask) & ANT_A) +
!!((mask) & ANT_B) +
!!((mask) & ANT_C);
}
static inline u8 iwl4965_first_antenna(u8 mask)
{
if (mask & ANT_A)
return ANT_A;
if (mask & ANT_B)
return ANT_B;
return ANT_C;
}
/**
* iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
*
* The specific throughput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/* Initialize station's rate scaling information after adding station */
extern void iwl4965_rs_rate_init(struct iwl_priv *priv,
struct ieee80211_sta *sta, u8 sta_id);
extern void iwl3945_rs_rate_init(struct iwl_priv *priv,
struct ieee80211_sta *sta, u8 sta_id);
/**
* iwl_rate_control_register - Register the rate control algorithm callbacks
*
* Since the rate control algorithm is hardware specific, there is no need
* or reason to place it as a stand alone module. The driver can call
* iwl_rate_control_register in order to register the rate control callbacks
* with the mac80211 subsystem. This should be performed prior to calling
* ieee80211_register_hw
*
*/
extern int iwl4965_rate_control_register(void);
extern int iwl3945_rate_control_register(void);
/**
* iwl_rate_control_unregister - Unregister the rate control callbacks
*
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
extern void iwl4965_rate_control_unregister(void);
extern void iwl3945_rate_control_unregister(void);
#endif /* __iwl_legacy_rs__ */

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/******************************************************************************
*
* Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-commands.h"
#include "iwl-debug.h"
#include "iwl-power.h"
/*
* Setting power level allows the card to go to sleep when not busy.
*
* We calculate a sleep command based on the required latency, which
* we get from mac80211. In order to handle thermal throttling, we can
* also use pre-defined power levels.
*/
/*
* This defines the old power levels. They are still used by default
* (level 1) and for thermal throttle (levels 3 through 5)
*/
struct iwl_power_vec_entry {
struct iwl_powertable_cmd cmd;
u8 no_dtim; /* number of skip dtim */
};
static void iwl_legacy_power_sleep_cam_cmd(struct iwl_priv *priv,
struct iwl_powertable_cmd *cmd)
{
memset(cmd, 0, sizeof(*cmd));
if (priv->power_data.pci_pm)
cmd->flags |= IWL_POWER_PCI_PM_MSK;
IWL_DEBUG_POWER(priv, "Sleep command for CAM\n");
}
static int
iwl_legacy_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd)
{
IWL_DEBUG_POWER(priv, "Sending power/sleep command\n");
IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags);
IWL_DEBUG_POWER(priv, "Tx timeout = %u\n",
le32_to_cpu(cmd->tx_data_timeout));
IWL_DEBUG_POWER(priv, "Rx timeout = %u\n",
le32_to_cpu(cmd->rx_data_timeout));
IWL_DEBUG_POWER(priv,
"Sleep interval vector = { %d , %d , %d , %d , %d }\n",
le32_to_cpu(cmd->sleep_interval[0]),
le32_to_cpu(cmd->sleep_interval[1]),
le32_to_cpu(cmd->sleep_interval[2]),
le32_to_cpu(cmd->sleep_interval[3]),
le32_to_cpu(cmd->sleep_interval[4]));
return iwl_legacy_send_cmd_pdu(priv, POWER_TABLE_CMD,
sizeof(struct iwl_powertable_cmd), cmd);
}
int
iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd,
bool force)
{
int ret;
bool update_chains;
lockdep_assert_held(&priv->mutex);
/* Don't update the RX chain when chain noise calibration is running */
update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE ||
priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE;
if (!memcmp(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force)
return 0;
if (!iwl_legacy_is_ready_rf(priv))
return -EIO;
/* scan complete use sleep_power_next, need to be updated */
memcpy(&priv->power_data.sleep_cmd_next, cmd, sizeof(*cmd));
if (test_bit(STATUS_SCANNING, &priv->status) && !force) {
IWL_DEBUG_INFO(priv, "Defer power set mode while scanning\n");
return 0;
}
if (cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)
set_bit(STATUS_POWER_PMI, &priv->status);
ret = iwl_legacy_set_power(priv, cmd);
if (!ret) {
if (!(cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK))
clear_bit(STATUS_POWER_PMI, &priv->status);
if (priv->cfg->ops->lib->update_chain_flags && update_chains)
priv->cfg->ops->lib->update_chain_flags(priv);
else if (priv->cfg->ops->lib->update_chain_flags)
IWL_DEBUG_POWER(priv,
"Cannot update the power, chain noise "
"calibration running: %d\n",
priv->chain_noise_data.state);
memcpy(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd));
} else
IWL_ERR(priv, "set power fail, ret = %d", ret);
return ret;
}
int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force)
{
struct iwl_powertable_cmd cmd;
iwl_legacy_power_sleep_cam_cmd(priv, &cmd);
return iwl_legacy_power_set_mode(priv, &cmd, force);
}
EXPORT_SYMBOL(iwl_legacy_power_update_mode);
/* initialize to default */
void iwl_legacy_power_initialize(struct iwl_priv *priv)
{
u16 lctl = iwl_legacy_pcie_link_ctl(priv);
priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
priv->power_data.debug_sleep_level_override = -1;
memset(&priv->power_data.sleep_cmd, 0,
sizeof(priv->power_data.sleep_cmd));
}
EXPORT_SYMBOL(iwl_legacy_power_initialize);

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/******************************************************************************
*
* Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#ifndef __iwl_legacy_power_setting_h__
#define __iwl_legacy_power_setting_h__
#include "iwl-commands.h"
enum iwl_power_level {
IWL_POWER_INDEX_1,
IWL_POWER_INDEX_2,
IWL_POWER_INDEX_3,
IWL_POWER_INDEX_4,
IWL_POWER_INDEX_5,
IWL_POWER_NUM
};
struct iwl_power_mgr {
struct iwl_powertable_cmd sleep_cmd;
struct iwl_powertable_cmd sleep_cmd_next;
int debug_sleep_level_override;
bool pci_pm;
};
int
iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd,
bool force);
int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force);
void iwl_legacy_power_initialize(struct iwl_priv *priv);
#endif /* __iwl_legacy_power_setting_h__ */

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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_legacy_prph_h__
#define __iwl_legacy_prph_h__
/*
* Registers in this file are internal, not PCI bus memory mapped.
* Driver accesses these via HBUS_TARG_PRPH_* registers.
*/
#define PRPH_BASE (0x00000)
#define PRPH_END (0xFFFFF)
/* APMG (power management) constants */
#define APMG_BASE (PRPH_BASE + 0x3000)
#define APMG_CLK_CTRL_REG (APMG_BASE + 0x0000)
#define APMG_CLK_EN_REG (APMG_BASE + 0x0004)
#define APMG_CLK_DIS_REG (APMG_BASE + 0x0008)
#define APMG_PS_CTRL_REG (APMG_BASE + 0x000c)
#define APMG_PCIDEV_STT_REG (APMG_BASE + 0x0010)
#define APMG_RFKILL_REG (APMG_BASE + 0x0014)
#define APMG_RTC_INT_STT_REG (APMG_BASE + 0x001c)
#define APMG_RTC_INT_MSK_REG (APMG_BASE + 0x0020)
#define APMG_DIGITAL_SVR_REG (APMG_BASE + 0x0058)
#define APMG_ANALOG_SVR_REG (APMG_BASE + 0x006C)
#define APMS_CLK_VAL_MRB_FUNC_MODE (0x00000001)
#define APMG_CLK_VAL_DMA_CLK_RQT (0x00000200)
#define APMG_CLK_VAL_BSM_CLK_RQT (0x00000800)
#define APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS (0x00400000)
#define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000)
#define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000)
#define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000)
#define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */
#define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x02000000)
#define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */
#define APMG_SVR_DIGITAL_VOLTAGE_1_32 (0x00000060)
#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800)
/**
* BSM (Bootstrap State Machine)
*
* The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
* in special SRAM that does not power down when the embedded control
* processor is sleeping (e.g. for periodic power-saving shutdowns of radio).
*
* When powering back up after sleeps (or during initial uCode load), the BSM
* internally loads the short bootstrap program from the special SRAM into the
* embedded processor's instruction SRAM, and starts the processor so it runs
* the bootstrap program.
*
* This bootstrap program loads (via PCI busmaster DMA) instructions and data
* images for a uCode program from host DRAM locations. The host driver
* indicates DRAM locations and sizes for instruction and data images via the
* four BSM_DRAM_* registers. Once the bootstrap program loads the new program,
* the new program starts automatically.
*
* The uCode used for open-source drivers includes two programs:
*
* 1) Initialization -- performs hardware calibration and sets up some
* internal data, then notifies host via "initialize alive" notification
* (struct iwl_init_alive_resp) that it has completed all of its work.
* After signal from host, it then loads and starts the runtime program.
* The initialization program must be used when initially setting up the
* NIC after loading the driver.
*
* 2) Runtime/Protocol -- performs all normal runtime operations. This
* notifies host via "alive" notification (struct iwl_alive_resp) that it
* is ready to be used.
*
* When initializing the NIC, the host driver does the following procedure:
*
* 1) Load bootstrap program (instructions only, no data image for bootstrap)
* into bootstrap memory. Use dword writes starting at BSM_SRAM_LOWER_BOUND
*
* 2) Point (via BSM_DRAM_*) to the "initialize" uCode data and instruction
* images in host DRAM.
*
* 3) Set up BSM to copy from BSM SRAM into uCode instruction SRAM when asked:
* BSM_WR_MEM_SRC_REG = 0
* BSM_WR_MEM_DST_REG = RTC_INST_LOWER_BOUND
* BSM_WR_MEM_DWCOUNT_REG = # dwords in bootstrap instruction image
*
* 4) Load bootstrap into instruction SRAM:
* BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START
*
* 5) Wait for load completion:
* Poll BSM_WR_CTRL_REG for BSM_WR_CTRL_REG_BIT_START = 0
*
* 6) Enable future boot loads whenever NIC's power management triggers it:
* BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START_EN
*
* 7) Start the NIC by removing all reset bits:
* CSR_RESET = 0
*
* The bootstrap uCode (already in instruction SRAM) loads initialization
* uCode. Initialization uCode performs data initialization, sends
* "initialize alive" notification to host, and waits for a signal from
* host to load runtime code.
*
* 4) Point (via BSM_DRAM_*) to the "runtime" uCode data and instruction
* images in host DRAM. The last register loaded must be the instruction
* byte count register ("1" in MSbit tells initialization uCode to load
* the runtime uCode):
* BSM_DRAM_INST_BYTECOUNT_REG = byte count | BSM_DRAM_INST_LOAD
*
* 5) Wait for "alive" notification, then issue normal runtime commands.
*
* Data caching during power-downs:
*
* Just before the embedded controller powers down (e.g for automatic
* power-saving modes, or for RFKILL), uCode stores (via PCI busmaster DMA)
* a current snapshot of the embedded processor's data SRAM into host DRAM.
* This caches the data while the embedded processor's memory is powered down.
* Location and size are controlled by BSM_DRAM_DATA_* registers.
*
* NOTE: Instruction SRAM does not need to be saved, since that doesn't
* change during operation; the original image (from uCode distribution
* file) can be used for reload.
*
* When powering back up, the BSM loads the bootstrap program. Bootstrap looks
* at the BSM_DRAM_* registers, which now point to the runtime instruction
* image and the cached (modified) runtime data (*not* the initialization
* uCode). Bootstrap reloads these runtime images into SRAM, and restarts the
* uCode from where it left off before the power-down.
*
* NOTE: Initialization uCode does *not* run as part of the save/restore
* procedure.
*
* This save/restore method is mostly for autonomous power management during
* normal operation (result of POWER_TABLE_CMD). Platform suspend/resume and
* RFKILL should use complete restarts (with total re-initialization) of uCode,
* allowing total shutdown (including BSM memory).
*
* Note that, during normal operation, the host DRAM that held the initial
* startup data for the runtime code is now being used as a backup data cache
* for modified data! If you need to completely re-initialize the NIC, make
* sure that you use the runtime data image from the uCode distribution file,
* not the modified/saved runtime data. You may want to store a separate
* "clean" runtime data image in DRAM to avoid disk reads of distribution file.
*/
/* BSM bit fields */
#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */
#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup*/
#define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */
/* BSM addresses */
#define BSM_BASE (PRPH_BASE + 0x3400)
#define BSM_END (PRPH_BASE + 0x3800)
#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */
#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */
#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */
#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */
#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */
/*
* Pointers and size regs for bootstrap load and data SRAM save/restore.
* NOTE: 3945 pointers use bits 31:0 of DRAM address.
* 4965 pointers use bits 35:4 of DRAM address.
*/
#define BSM_DRAM_INST_PTR_REG (BSM_BASE + 0x090)
#define BSM_DRAM_INST_BYTECOUNT_REG (BSM_BASE + 0x094)
#define BSM_DRAM_DATA_PTR_REG (BSM_BASE + 0x098)
#define BSM_DRAM_DATA_BYTECOUNT_REG (BSM_BASE + 0x09C)
/*
* BSM special memory, stays powered on during power-save sleeps.
* Read/write, address range from LOWER_BOUND to (LOWER_BOUND + SIZE -1)
*/
#define BSM_SRAM_LOWER_BOUND (PRPH_BASE + 0x3800)
#define BSM_SRAM_SIZE (1024) /* bytes */
/* 3945 Tx scheduler registers */
#define ALM_SCD_BASE (PRPH_BASE + 0x2E00)
#define ALM_SCD_MODE_REG (ALM_SCD_BASE + 0x000)
#define ALM_SCD_ARASTAT_REG (ALM_SCD_BASE + 0x004)
#define ALM_SCD_TXFACT_REG (ALM_SCD_BASE + 0x010)
#define ALM_SCD_TXF4MF_REG (ALM_SCD_BASE + 0x014)
#define ALM_SCD_TXF5MF_REG (ALM_SCD_BASE + 0x020)
#define ALM_SCD_SBYP_MODE_1_REG (ALM_SCD_BASE + 0x02C)
#define ALM_SCD_SBYP_MODE_2_REG (ALM_SCD_BASE + 0x030)
/**
* Tx Scheduler
*
* The Tx Scheduler selects the next frame to be transmitted, choosing TFDs
* (Transmit Frame Descriptors) from up to 16 circular Tx queues resident in
* host DRAM. It steers each frame's Tx command (which contains the frame
* data) into one of up to 7 prioritized Tx DMA FIFO channels within the
* device. A queue maps to only one (selectable by driver) Tx DMA channel,
* but one DMA channel may take input from several queues.
*
* Tx DMA FIFOs have dedicated purposes. For 4965, they are used as follows
* (cf. default_queue_to_tx_fifo in iwl-4965.c):
*
* 0 -- EDCA BK (background) frames, lowest priority
* 1 -- EDCA BE (best effort) frames, normal priority
* 2 -- EDCA VI (video) frames, higher priority
* 3 -- EDCA VO (voice) and management frames, highest priority
* 4 -- Commands (e.g. RXON, etc.)
* 5 -- unused (HCCA)
* 6 -- unused (HCCA)
* 7 -- not used by driver (device-internal only)
*
*
* Driver should normally map queues 0-6 to Tx DMA/FIFO channels 0-6.
* In addition, driver can map the remaining queues to Tx DMA/FIFO
* channels 0-3 to support 11n aggregation via EDCA DMA channels.
*
* The driver sets up each queue to work in one of two modes:
*
* 1) Scheduler-Ack, in which the scheduler automatically supports a
* block-ack (BA) window of up to 64 TFDs. In this mode, each queue
* contains TFDs for a unique combination of Recipient Address (RA)
* and Traffic Identifier (TID), that is, traffic of a given
* Quality-Of-Service (QOS) priority, destined for a single station.
*
* In scheduler-ack mode, the scheduler keeps track of the Tx status of
* each frame within the BA window, including whether it's been transmitted,
* and whether it's been acknowledged by the receiving station. The device
* automatically processes block-acks received from the receiving STA,
* and reschedules un-acked frames to be retransmitted (successful
* Tx completion may end up being out-of-order).
*
* The driver must maintain the queue's Byte Count table in host DRAM
* (struct iwl4965_sched_queue_byte_cnt_tbl) for this mode.
* This mode does not support fragmentation.
*
* 2) FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order.
* The device may automatically retry Tx, but will retry only one frame
* at a time, until receiving ACK from receiving station, or reaching
* retry limit and giving up.
*
* The command queue (#4/#9) must use this mode!
* This mode does not require use of the Byte Count table in host DRAM.
*
* Driver controls scheduler operation via 3 means:
* 1) Scheduler registers
* 2) Shared scheduler data base in internal 4956 SRAM
* 3) Shared data in host DRAM
*
* Initialization:
*
* When loading, driver should allocate memory for:
* 1) 16 TFD circular buffers, each with space for (typically) 256 TFDs.
* 2) 16 Byte Count circular buffers in 16 KBytes contiguous memory
* (1024 bytes for each queue).
*
* After receiving "Alive" response from uCode, driver must initialize
* the scheduler (especially for queue #4/#9, the command queue, otherwise
* the driver can't issue commands!):
*/
/**
* Max Tx window size is the max number of contiguous TFDs that the scheduler
* can keep track of at one time when creating block-ack chains of frames.
* Note that "64" matches the number of ack bits in a block-ack packet.
* Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize
* IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) values.
*/
#define SCD_WIN_SIZE 64
#define SCD_FRAME_LIMIT 64
/* SCD registers are internal, must be accessed via HBUS_TARG_PRPH regs */
#define IWL49_SCD_START_OFFSET 0xa02c00
/*
* 4965 tells driver SRAM address for internal scheduler structs via this reg.
* Value is valid only after "Alive" response from uCode.
*/
#define IWL49_SCD_SRAM_BASE_ADDR (IWL49_SCD_START_OFFSET + 0x0)
/*
* Driver may need to update queue-empty bits after changing queue's
* write and read pointers (indexes) during (re-)initialization (i.e. when
* scheduler is not tracking what's happening).
* Bit fields:
* 31-16: Write mask -- 1: update empty bit, 0: don't change empty bit
* 15-00: Empty state, one for each queue -- 1: empty, 0: non-empty
* NOTE: This register is not used by Linux driver.
*/
#define IWL49_SCD_EMPTY_BITS (IWL49_SCD_START_OFFSET + 0x4)
/*
* Physical base address of array of byte count (BC) circular buffers (CBs).
* Each Tx queue has a BC CB in host DRAM to support Scheduler-ACK mode.
* This register points to BC CB for queue 0, must be on 1024-byte boundary.
* Others are spaced by 1024 bytes.
* Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad.
* (Index into a queue's BC CB) = (index into queue's TFD CB) = (SSN & 0xff).
* Bit fields:
* 25-00: Byte Count CB physical address [35:10], must be 1024-byte aligned.
*/
#define IWL49_SCD_DRAM_BASE_ADDR (IWL49_SCD_START_OFFSET + 0x10)
/*
* Enables any/all Tx DMA/FIFO channels.
* Scheduler generates requests for only the active channels.
* Set this to 0xff to enable all 8 channels (normal usage).
* Bit fields:
* 7- 0: Enable (1), disable (0), one bit for each channel 0-7
*/
#define IWL49_SCD_TXFACT (IWL49_SCD_START_OFFSET + 0x1c)
/*
* Queue (x) Write Pointers (indexes, really!), one for each Tx queue.
* Initialized and updated by driver as new TFDs are added to queue.
* NOTE: If using Block Ack, index must correspond to frame's
* Start Sequence Number; index = (SSN & 0xff)
* NOTE: Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses?
*/
#define IWL49_SCD_QUEUE_WRPTR(x) (IWL49_SCD_START_OFFSET + 0x24 + (x) * 4)
/*
* Queue (x) Read Pointers (indexes, really!), one for each Tx queue.
* For FIFO mode, index indicates next frame to transmit.
* For Scheduler-ACK mode, index indicates first frame in Tx window.
* Initialized by driver, updated by scheduler.
*/
#define IWL49_SCD_QUEUE_RDPTR(x) (IWL49_SCD_START_OFFSET + 0x64 + (x) * 4)
/*
* Select which queues work in chain mode (1) vs. not (0).
* Use chain mode to build chains of aggregated frames.
* Bit fields:
* 31-16: Reserved
* 15-00: Mode, one bit for each queue -- 1: Chain mode, 0: one-at-a-time
* NOTE: If driver sets up queue for chain mode, it should be also set up
* Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x).
*/
#define IWL49_SCD_QUEUECHAIN_SEL (IWL49_SCD_START_OFFSET + 0xd0)
/*
* Select which queues interrupt driver when scheduler increments
* a queue's read pointer (index).
* Bit fields:
* 31-16: Reserved
* 15-00: Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled
* NOTE: This functionality is apparently a no-op; driver relies on interrupts
* from Rx queue to read Tx command responses and update Tx queues.
*/
#define IWL49_SCD_INTERRUPT_MASK (IWL49_SCD_START_OFFSET + 0xe4)
/*
* Queue search status registers. One for each queue.
* Sets up queue mode and assigns queue to Tx DMA channel.
* Bit fields:
* 19-10: Write mask/enable bits for bits 0-9
* 9: Driver should init to "0"
* 8: Scheduler-ACK mode (1), non-Scheduler-ACK (i.e. FIFO) mode (0).
* Driver should init to "1" for aggregation mode, or "0" otherwise.
* 7-6: Driver should init to "0"
* 5: Window Size Left; indicates whether scheduler can request
* another TFD, based on window size, etc. Driver should init
* this bit to "1" for aggregation mode, or "0" for non-agg.
* 4-1: Tx FIFO to use (range 0-7).
* 0: Queue is active (1), not active (0).
* Other bits should be written as "0"
*
* NOTE: If enabling Scheduler-ACK mode, chain mode should also be enabled
* via SCD_QUEUECHAIN_SEL.
*/
#define IWL49_SCD_QUEUE_STATUS_BITS(x)\
(IWL49_SCD_START_OFFSET + 0x104 + (x) * 4)
/* Bit field positions */
#define IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE (0)
#define IWL49_SCD_QUEUE_STTS_REG_POS_TXF (1)
#define IWL49_SCD_QUEUE_STTS_REG_POS_WSL (5)
#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK (8)
/* Write masks */
#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10)
#define IWL49_SCD_QUEUE_STTS_REG_MSK (0x0007FC00)
/**
* 4965 internal SRAM structures for scheduler, shared with driver ...
*
* Driver should clear and initialize the following areas after receiving
* "Alive" response from 4965 uCode, i.e. after initial
* uCode load, or after a uCode load done for error recovery:
*
* SCD_CONTEXT_DATA_OFFSET (size 128 bytes)
* SCD_TX_STTS_BITMAP_OFFSET (size 256 bytes)
* SCD_TRANSLATE_TBL_OFFSET (size 32 bytes)
*
* Driver accesses SRAM via HBUS_TARG_MEM_* registers.
* Driver reads base address of this scheduler area from SCD_SRAM_BASE_ADDR.
* All OFFSET values must be added to this base address.
*/
/*
* Queue context. One 8-byte entry for each of 16 queues.
*
* Driver should clear this entire area (size 0x80) to 0 after receiving
* "Alive" notification from uCode. Additionally, driver should init
* each queue's entry as follows:
*
* LS Dword bit fields:
* 0-06: Max Tx window size for Scheduler-ACK. Driver should init to 64.
*
* MS Dword bit fields:
* 16-22: Frame limit. Driver should init to 10 (0xa).
*
* Driver should init all other bits to 0.
*
* Init must be done after driver receives "Alive" response from 4965 uCode,
* and when setting up queue for aggregation.
*/
#define IWL49_SCD_CONTEXT_DATA_OFFSET 0x380
#define IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) \
(IWL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0)
#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F)
#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
/*
* Tx Status Bitmap
*
* Driver should clear this entire area (size 0x100) to 0 after receiving
* "Alive" notification from uCode. Area is used only by device itself;
* no other support (besides clearing) is required from driver.
*/
#define IWL49_SCD_TX_STTS_BITMAP_OFFSET 0x400
/*
* RAxTID to queue translation mapping.
*
* When queue is in Scheduler-ACK mode, frames placed in a that queue must be
* for only one combination of receiver address (RA) and traffic ID (TID), i.e.
* one QOS priority level destined for one station (for this wireless link,
* not final destination). The SCD_TRANSLATE_TABLE area provides 16 16-bit
* mappings, one for each of the 16 queues. If queue is not in Scheduler-ACK
* mode, the device ignores the mapping value.
*
* Bit fields, for each 16-bit map:
* 15-9: Reserved, set to 0
* 8-4: Index into device's station table for recipient station
* 3-0: Traffic ID (tid), range 0-15
*
* Driver should clear this entire area (size 32 bytes) to 0 after receiving
* "Alive" notification from uCode. To update a 16-bit map value, driver
* must read a dword-aligned value from device SRAM, replace the 16-bit map
* value of interest, and write the dword value back into device SRAM.
*/
#define IWL49_SCD_TRANSLATE_TBL_OFFSET 0x500
/* Find translation table dword to read/write for given queue */
#define IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
((IWL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)
#define IWL_SCD_TXFIFO_POS_TID (0)
#define IWL_SCD_TXFIFO_POS_RA (4)
#define IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
/*********************** END TX SCHEDULER *************************************/
#endif /* __iwl_legacy_prph_h__ */

302
drivers/net/wireless/iwlegacy/iwl-rx.c Normal file
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@ -0,0 +1,302 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <net/mac80211.h>
#include <asm/unaligned.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
/************************** RX-FUNCTIONS ****************************/
/*
* Rx theory of operation
*
* Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
* each of which point to Receive Buffers to be filled by the NIC. These get
* used not only for Rx frames, but for any command response or notification
* from the NIC. The driver and NIC manage the Rx buffers by means
* of indexes into the circular buffer.
*
* Rx Queue Indexes
* The host/firmware share two index registers for managing the Rx buffers.
*
* The READ index maps to the first position that the firmware may be writing
* to -- the driver can read up to (but not including) this position and get
* good data.
* The READ index is managed by the firmware once the card is enabled.
*
* The WRITE index maps to the last position the driver has read from -- the
* position preceding WRITE is the last slot the firmware can place a packet.
*
* The queue is empty (no good data) if WRITE = READ - 1, and is full if
* WRITE = READ.
*
* During initialization, the host sets up the READ queue position to the first
* INDEX position, and WRITE to the last (READ - 1 wrapped)
*
* When the firmware places a packet in a buffer, it will advance the READ index
* and fire the RX interrupt. The driver can then query the READ index and
* process as many packets as possible, moving the WRITE index forward as it
* resets the Rx queue buffers with new memory.
*
* The management in the driver is as follows:
* + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
* iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
* to replenish the iwl->rxq->rx_free.
* + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the
* iwl->rxq is replenished and the READ INDEX is updated (updating the
* 'processed' and 'read' driver indexes as well)
* + A received packet is processed and handed to the kernel network stack,
* detached from the iwl->rxq. The driver 'processed' index is updated.
* + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
* list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
* INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
* were enough free buffers and RX_STALLED is set it is cleared.
*
*
* Driver sequence:
*
* iwl_legacy_rx_queue_alloc() Allocates rx_free
* iwl_rx_replenish() Replenishes rx_free list from rx_used, and calls
* iwl_rx_queue_restock
* iwl_rx_queue_restock() Moves available buffers from rx_free into Rx
* queue, updates firmware pointers, and updates
* the WRITE index. If insufficient rx_free buffers
* are available, schedules iwl_rx_replenish
*
* -- enable interrupts --
* ISR - iwl_rx() Detach iwl_rx_mem_buffers from pool up to the
* READ INDEX, detaching the SKB from the pool.
* Moves the packet buffer from queue to rx_used.
* Calls iwl_rx_queue_restock to refill any empty
* slots.
* ...
*
*/
/**
* iwl_legacy_rx_queue_space - Return number of free slots available in queue.
*/
int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q)
{
int s = q->read - q->write;
if (s <= 0)
s += RX_QUEUE_SIZE;
/* keep some buffer to not confuse full and empty queue */
s -= 2;
if (s < 0)
s = 0;
return s;
}
EXPORT_SYMBOL(iwl_legacy_rx_queue_space);
/**
* iwl_legacy_rx_queue_update_write_ptr - Update the write pointer for the RX queue
*/
void
iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl_rx_queue *q)
{
unsigned long flags;
u32 rx_wrt_ptr_reg = priv->hw_params.rx_wrt_ptr_reg;
u32 reg;
spin_lock_irqsave(&q->lock, flags);
if (q->need_update == 0)
goto exit_unlock;
/* If power-saving is in use, make sure device is awake */
if (test_bit(STATUS_POWER_PMI, &priv->status)) {
reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
IWL_DEBUG_INFO(priv,
"Rx queue requesting wakeup,"
" GP1 = 0x%x\n", reg);
iwl_legacy_set_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
goto exit_unlock;
}
q->write_actual = (q->write & ~0x7);
iwl_legacy_write_direct32(priv, rx_wrt_ptr_reg,
q->write_actual);
/* Else device is assumed to be awake */
} else {
/* Device expects a multiple of 8 */
q->write_actual = (q->write & ~0x7);
iwl_legacy_write_direct32(priv, rx_wrt_ptr_reg,
q->write_actual);
}
q->need_update = 0;
exit_unlock:
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(iwl_legacy_rx_queue_update_write_ptr);
int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv)
{
struct iwl_rx_queue *rxq = &priv->rxq;
struct device *dev = &priv->pci_dev->dev;
int i;
spin_lock_init(&rxq->lock);
INIT_LIST_HEAD(&rxq->rx_free);
INIT_LIST_HEAD(&rxq->rx_used);
/* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma,
GFP_KERNEL);
if (!rxq->bd)
goto err_bd;
rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status),
&rxq->rb_stts_dma, GFP_KERNEL);
if (!rxq->rb_stts)
goto err_rb;
/* Fill the rx_used queue with _all_ of the Rx buffers */
for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
/* Set us so that we have processed and used all buffers, but have
* not restocked the Rx queue with fresh buffers */
rxq->read = rxq->write = 0;
rxq->write_actual = 0;
rxq->free_count = 0;
rxq->need_update = 0;
return 0;
err_rb:
dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->bd_dma);
err_bd:
return -ENOMEM;
}
EXPORT_SYMBOL(iwl_legacy_rx_queue_alloc);
void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
if (!report->state) {
IWL_DEBUG_11H(priv,
"Spectrum Measure Notification: Start\n");
return;
}
memcpy(&priv->measure_report, report, sizeof(*report));
priv->measurement_status |= MEASUREMENT_READY;
}
EXPORT_SYMBOL(iwl_legacy_rx_spectrum_measure_notif);
void iwl_legacy_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
if (iwl_legacy_is_any_associated(priv)) {
if (priv->cfg->ops->lib->check_plcp_health) {
if (!priv->cfg->ops->lib->check_plcp_health(
priv, pkt)) {
/*
* high plcp error detected
* reset Radio
*/
iwl_legacy_force_reset(priv,
IWL_RF_RESET, false);
}
}
}
}
EXPORT_SYMBOL(iwl_legacy_recover_from_statistics);
/*
* returns non-zero if packet should be dropped
*/
int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv,
struct ieee80211_hdr *hdr,
u32 decrypt_res,
struct ieee80211_rx_status *stats)
{
u16 fc = le16_to_cpu(hdr->frame_control);
/*
* All contexts have the same setting here due to it being
* a module parameter, so OK to check any context.
*/
if (priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags &
RXON_FILTER_DIS_DECRYPT_MSK)
return 0;
if (!(fc & IEEE80211_FCTL_PROTECTED))
return 0;
IWL_DEBUG_RX(priv, "decrypt_res:0x%x\n", decrypt_res);
switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
case RX_RES_STATUS_SEC_TYPE_TKIP:
/* The uCode has got a bad phase 1 Key, pushes the packet.
* Decryption will be done in SW. */
if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
RX_RES_STATUS_BAD_KEY_TTAK)
break;
case RX_RES_STATUS_SEC_TYPE_WEP:
if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
RX_RES_STATUS_BAD_ICV_MIC) {
/* bad ICV, the packet is destroyed since the
* decryption is inplace, drop it */
IWL_DEBUG_RX(priv, "Packet destroyed\n");
return -1;
}
case RX_RES_STATUS_SEC_TYPE_CCMP:
if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
RX_RES_STATUS_DECRYPT_OK) {
IWL_DEBUG_RX(priv, "hw decrypt successfully!!!\n");
stats->flag |= RX_FLAG_DECRYPTED;
}
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL(iwl_legacy_set_decrypted_flag);

625
drivers/net/wireless/iwlegacy/iwl-scan.c Normal file
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@ -0,0 +1,625 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/etherdevice.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
* sending probe req. This should be set long enough to hear probe responses
* from more than one AP. */
#define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
#define IWL_ACTIVE_DWELL_TIME_52 (20)
#define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
#define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
* Must be set longer than active dwell time.
* For the most reliable scan, set > AP beacon interval (typically 100msec). */
#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
#define IWL_PASSIVE_DWELL_TIME_52 (10)
#define IWL_PASSIVE_DWELL_BASE (100)
#define IWL_CHANNEL_TUNE_TIME 5
static int iwl_legacy_send_scan_abort(struct iwl_priv *priv)
{
int ret;
struct iwl_rx_packet *pkt;
struct iwl_host_cmd cmd = {
.id = REPLY_SCAN_ABORT_CMD,
.flags = CMD_WANT_SKB,
};
/* Exit instantly with error when device is not ready
* to receive scan abort command or it does not perform
* hardware scan currently */
if (!test_bit(STATUS_READY, &priv->status) ||
!test_bit(STATUS_GEO_CONFIGURED, &priv->status) ||
!test_bit(STATUS_SCAN_HW, &priv->status) ||
test_bit(STATUS_FW_ERROR, &priv->status) ||
test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EIO;
ret = iwl_legacy_send_cmd_sync(priv, &cmd);
if (ret)
return ret;
pkt = (struct iwl_rx_packet *)cmd.reply_page;
if (pkt->u.status != CAN_ABORT_STATUS) {
/* The scan abort will return 1 for success or
* 2 for "failure". A failure condition can be
* due to simply not being in an active scan which
* can occur if we send the scan abort before we
* the microcode has notified us that a scan is
* completed. */
IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n", pkt->u.status);
ret = -EIO;
}
iwl_legacy_free_pages(priv, cmd.reply_page);
return ret;
}
static void iwl_legacy_complete_scan(struct iwl_priv *priv, bool aborted)
{
/* check if scan was requested from mac80211 */
if (priv->scan_request) {
IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n");
ieee80211_scan_completed(priv->hw, aborted);
}
priv->is_internal_short_scan = false;
priv->scan_vif = NULL;
priv->scan_request = NULL;
}
void iwl_legacy_force_scan_end(struct iwl_priv *priv)
{
lockdep_assert_held(&priv->mutex);
if (!test_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n");
return;
}
IWL_DEBUG_SCAN(priv, "Forcing scan end\n");
clear_bit(STATUS_SCANNING, &priv->status);
clear_bit(STATUS_SCAN_HW, &priv->status);
clear_bit(STATUS_SCAN_ABORTING, &priv->status);
iwl_legacy_complete_scan(priv, true);
}
static void iwl_legacy_do_scan_abort(struct iwl_priv *priv)
{
int ret;
lockdep_assert_held(&priv->mutex);
if (!test_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Not performing scan to abort\n");
return;
}
if (test_and_set_bit(STATUS_SCAN_ABORTING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan abort in progress\n");
return;
}
ret = iwl_legacy_send_scan_abort(priv);
if (ret) {
IWL_DEBUG_SCAN(priv, "Send scan abort failed %d\n", ret);
iwl_legacy_force_scan_end(priv);
} else
IWL_DEBUG_SCAN(priv, "Sucessfully send scan abort\n");
}
/**
* iwl_scan_cancel - Cancel any currently executing HW scan
*/
int iwl_legacy_scan_cancel(struct iwl_priv *priv)
{
IWL_DEBUG_SCAN(priv, "Queuing abort scan\n");
queue_work(priv->workqueue, &priv->abort_scan);
return 0;
}
EXPORT_SYMBOL(iwl_legacy_scan_cancel);
/**
* iwl_legacy_scan_cancel_timeout - Cancel any currently executing HW scan
* @ms: amount of time to wait (in milliseconds) for scan to abort
*
*/
int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
{
unsigned long timeout = jiffies + msecs_to_jiffies(ms);
lockdep_assert_held(&priv->mutex);
IWL_DEBUG_SCAN(priv, "Scan cancel timeout\n");
iwl_legacy_do_scan_abort(priv);
while (time_before_eq(jiffies, timeout)) {
if (!test_bit(STATUS_SCAN_HW, &priv->status))
break;
msleep(20);
}
return test_bit(STATUS_SCAN_HW, &priv->status);
}
EXPORT_SYMBOL(iwl_legacy_scan_cancel_timeout);
/* Service response to REPLY_SCAN_CMD (0x80) */
static void iwl_legacy_rx_reply_scan(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scanreq_notification *notif =
(struct iwl_scanreq_notification *)pkt->u.raw;
IWL_DEBUG_SCAN(priv, "Scan request status = 0x%x\n", notif->status);
#endif
}
/* Service SCAN_START_NOTIFICATION (0x82) */
static void iwl_legacy_rx_scan_start_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scanstart_notification *notif =
(struct iwl_scanstart_notification *)pkt->u.raw;
priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
IWL_DEBUG_SCAN(priv, "Scan start: "
"%d [802.11%s] "
"(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
notif->channel,
notif->band ? "bg" : "a",
le32_to_cpu(notif->tsf_high),
le32_to_cpu(notif->tsf_low),
notif->status, notif->beacon_timer);
}
/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
static void iwl_legacy_rx_scan_results_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scanresults_notification *notif =
(struct iwl_scanresults_notification *)pkt->u.raw;
IWL_DEBUG_SCAN(priv, "Scan ch.res: "
"%d [802.11%s] "
"(TSF: 0x%08X:%08X) - %d "
"elapsed=%lu usec\n",
notif->channel,
notif->band ? "bg" : "a",
le32_to_cpu(notif->tsf_high),
le32_to_cpu(notif->tsf_low),
le32_to_cpu(notif->statistics[0]),
le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf);
#endif
}
/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
static void iwl_legacy_rx_scan_complete_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
#endif
IWL_DEBUG_SCAN(priv,
"Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
scan_notif->scanned_channels,
scan_notif->tsf_low,
scan_notif->tsf_high, scan_notif->status);
/* The HW is no longer scanning */
clear_bit(STATUS_SCAN_HW, &priv->status);
IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n",
(priv->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
jiffies_to_msecs(jiffies - priv->scan_start));
queue_work(priv->workqueue, &priv->scan_completed);
}
void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv)
{
/* scan handlers */
priv->rx_handlers[REPLY_SCAN_CMD] = iwl_legacy_rx_reply_scan;
priv->rx_handlers[SCAN_START_NOTIFICATION] =
iwl_legacy_rx_scan_start_notif;
priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
iwl_legacy_rx_scan_results_notif;
priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
iwl_legacy_rx_scan_complete_notif;
}
EXPORT_SYMBOL(iwl_legacy_setup_rx_scan_handlers);
inline u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv,
enum ieee80211_band band,
u8 n_probes)
{
if (band == IEEE80211_BAND_5GHZ)
return IWL_ACTIVE_DWELL_TIME_52 +
IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
else
return IWL_ACTIVE_DWELL_TIME_24 +
IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
}
EXPORT_SYMBOL(iwl_legacy_get_active_dwell_time);
u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv,
enum ieee80211_band band,
struct ieee80211_vif *vif)
{
struct iwl_rxon_context *ctx;
u16 passive = (band == IEEE80211_BAND_2GHZ) ?
IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
if (iwl_legacy_is_any_associated(priv)) {
/*
* If we're associated, we clamp the maximum passive
* dwell time to be 98% of the smallest beacon interval
* (minus 2 * channel tune time)
*/
for_each_context(priv, ctx) {
u16 value;
if (!iwl_legacy_is_associated_ctx(ctx))
continue;
value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0;
if ((value > IWL_PASSIVE_DWELL_BASE) || !value)
value = IWL_PASSIVE_DWELL_BASE;
value = (value * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
passive = min(value, passive);
}
}
return passive;
}
EXPORT_SYMBOL(iwl_legacy_get_passive_dwell_time);
void iwl_legacy_init_scan_params(struct iwl_priv *priv)
{
u8 ant_idx = fls(priv->hw_params.valid_tx_ant) - 1;
if (!priv->scan_tx_ant[IEEE80211_BAND_5GHZ])
priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx;
if (!priv->scan_tx_ant[IEEE80211_BAND_2GHZ])
priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
}
EXPORT_SYMBOL(iwl_legacy_init_scan_params);
static int __must_check iwl_legacy_scan_initiate(struct iwl_priv *priv,
struct ieee80211_vif *vif,
bool internal,
enum ieee80211_band band)
{
int ret;
lockdep_assert_held(&priv->mutex);
if (WARN_ON(!priv->cfg->ops->utils->request_scan))
return -EOPNOTSUPP;
cancel_delayed_work(&priv->scan_check);
if (!iwl_legacy_is_ready_rf(priv)) {
IWL_WARN(priv, "Request scan called when driver not ready.\n");
return -EIO;
}
if (test_bit(STATUS_SCAN_HW, &priv->status)) {
IWL_DEBUG_SCAN(priv,
"Multiple concurrent scan requests in parallel.\n");
return -EBUSY;
}
if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan request while abort pending.\n");
return -EBUSY;
}
IWL_DEBUG_SCAN(priv, "Starting %sscan...\n",
internal ? "internal short " : "");
set_bit(STATUS_SCANNING, &priv->status);
priv->is_internal_short_scan = internal;
priv->scan_start = jiffies;
priv->scan_band = band;
ret = priv->cfg->ops->utils->request_scan(priv, vif);
if (ret) {
clear_bit(STATUS_SCANNING, &priv->status);
priv->is_internal_short_scan = false;
return ret;
}
queue_delayed_work(priv->workqueue, &priv->scan_check,
IWL_SCAN_CHECK_WATCHDOG);
return 0;
}
int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_scan_request *req)
{
struct iwl_priv *priv = hw->priv;
int ret;
IWL_DEBUG_MAC80211(priv, "enter\n");
if (req->n_channels == 0)
return -EINVAL;
mutex_lock(&priv->mutex);
if (test_bit(STATUS_SCANNING, &priv->status) &&
!priv->is_internal_short_scan) {
IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
ret = -EAGAIN;
goto out_unlock;
}
/* mac80211 will only ask for one band at a time */
priv->scan_request = req;
priv->scan_vif = vif;
/*
* If an internal scan is in progress, just set
* up the scan_request as per above.
*/
if (priv->is_internal_short_scan) {
IWL_DEBUG_SCAN(priv, "SCAN request during internal scan\n");
ret = 0;
} else
ret = iwl_legacy_scan_initiate(priv, vif, false,
req->channels[0]->band);
IWL_DEBUG_MAC80211(priv, "leave\n");
out_unlock:
mutex_unlock(&priv->mutex);
return ret;
}
EXPORT_SYMBOL(iwl_legacy_mac_hw_scan);
/*
* internal short scan, this function should only been called while associated.
* It will reset and tune the radio to prevent possible RF related problem
*/
void iwl_legacy_internal_short_hw_scan(struct iwl_priv *priv)
{
queue_work(priv->workqueue, &priv->start_internal_scan);
}
static void iwl_legacy_bg_start_internal_scan(struct work_struct *work)
{
struct iwl_priv *priv =
container_of(work, struct iwl_priv, start_internal_scan);
IWL_DEBUG_SCAN(priv, "Start internal scan\n");
mutex_lock(&priv->mutex);
if (priv->is_internal_short_scan == true) {
IWL_DEBUG_SCAN(priv, "Internal scan already in progress\n");
goto unlock;
}
if (test_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
goto unlock;
}
if (iwl_legacy_scan_initiate(priv, NULL, true, priv->band))
IWL_DEBUG_SCAN(priv, "failed to start internal short scan\n");
unlock:
mutex_unlock(&priv->mutex);
}
static void iwl_legacy_bg_scan_check(struct work_struct *data)
{
struct iwl_priv *priv =
container_of(data, struct iwl_priv, scan_check.work);
IWL_DEBUG_SCAN(priv, "Scan check work\n");
/* Since we are here firmware does not finish scan and
* most likely is in bad shape, so we don't bother to
* send abort command, just force scan complete to mac80211 */
mutex_lock(&priv->mutex);
iwl_legacy_force_scan_end(priv);
mutex_unlock(&priv->mutex);
}
/**
* iwl_legacy_fill_probe_req - fill in all required fields and IE for probe request
*/
u16
iwl_legacy_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
const u8 *ta, const u8 *ies, int ie_len, int left)
{
int len = 0;
u8 *pos = NULL;
/* Make sure there is enough space for the probe request,
* two mandatory IEs and the data */
left -= 24;
if (left < 0)
return 0;
frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
memcpy(frame->sa, ta, ETH_ALEN);
memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
frame->seq_ctrl = 0;
len += 24;
/* ...next IE... */
pos = &frame->u.probe_req.variable[0];
/* fill in our indirect SSID IE */
left -= 2;
if (left < 0)
return 0;
*pos++ = WLAN_EID_SSID;
*pos++ = 0;
len += 2;
if (WARN_ON(left < ie_len))
return len;
if (ies && ie_len) {
memcpy(pos, ies, ie_len);
len += ie_len;
}
return (u16)len;
}
EXPORT_SYMBOL(iwl_legacy_fill_probe_req);
static void iwl_legacy_bg_abort_scan(struct work_struct *work)
{
struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
IWL_DEBUG_SCAN(priv, "Abort scan work\n");
/* We keep scan_check work queued in case when firmware will not
* report back scan completed notification */
mutex_lock(&priv->mutex);
iwl_legacy_scan_cancel_timeout(priv, 200);
mutex_unlock(&priv->mutex);
}
static void iwl_legacy_bg_scan_completed(struct work_struct *work)
{
struct iwl_priv *priv =
container_of(work, struct iwl_priv, scan_completed);
bool aborted;
IWL_DEBUG_SCAN(priv, "Completed %sscan.\n",
priv->is_internal_short_scan ? "internal short " : "");
cancel_delayed_work(&priv->scan_check);
mutex_lock(&priv->mutex);
aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);
if (aborted)
IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");
if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan already completed.\n");
goto out_settings;
}
if (priv->is_internal_short_scan && !aborted) {
int err;
/* Check if mac80211 requested scan during our internal scan */
if (priv->scan_request == NULL)
goto out_complete;
/* If so request a new scan */
err = iwl_legacy_scan_initiate(priv, priv->scan_vif, false,
priv->scan_request->channels[0]->band);
if (err) {
IWL_DEBUG_SCAN(priv,
"failed to initiate pending scan: %d\n", err);
aborted = true;
goto out_complete;
}
goto out;
}
out_complete:
iwl_legacy_complete_scan(priv, aborted);
out_settings:
/* Can we still talk to firmware ? */
if (!iwl_legacy_is_ready_rf(priv))
goto out;
/*
* We do not commit power settings while scan is pending,
* do it now if the settings changed.
*/
iwl_legacy_power_set_mode(priv, &priv->power_data.sleep_cmd_next,
false);
iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
priv->cfg->ops->utils->post_scan(priv);
out:
mutex_unlock(&priv->mutex);
}
void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv)
{
INIT_WORK(&priv->scan_completed, iwl_legacy_bg_scan_completed);
INIT_WORK(&priv->abort_scan, iwl_legacy_bg_abort_scan);
INIT_WORK(&priv->start_internal_scan,
iwl_legacy_bg_start_internal_scan);
INIT_DELAYED_WORK(&priv->scan_check, iwl_legacy_bg_scan_check);
}
EXPORT_SYMBOL(iwl_legacy_setup_scan_deferred_work);
void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv)
{
cancel_work_sync(&priv->start_internal_scan);
cancel_work_sync(&priv->abort_scan);
cancel_work_sync(&priv->scan_completed);
if (cancel_delayed_work_sync(&priv->scan_check)) {
mutex_lock(&priv->mutex);
iwl_legacy_force_scan_end(priv);
mutex_unlock(&priv->mutex);
}
}
EXPORT_SYMBOL(iwl_legacy_cancel_scan_deferred_work);

92
drivers/net/wireless/iwlegacy/iwl-spectrum.h Normal file
View File

@ -0,0 +1,92 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_spectrum_h__
#define __iwl_legacy_spectrum_h__
enum { /* ieee80211_basic_report.map */
IEEE80211_BASIC_MAP_BSS = (1 << 0),
IEEE80211_BASIC_MAP_OFDM = (1 << 1),
IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
IEEE80211_BASIC_MAP_RADAR = (1 << 3),
IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
/* Bits 5-7 are reserved */
};
struct ieee80211_basic_report {
u8 channel;
__le64 start_time;
__le16 duration;
u8 map;
} __packed;
enum { /* ieee80211_measurement_request.mode */
/* Bit 0 is reserved */
IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
IEEE80211_MEASUREMENT_REPORT = (1 << 3),
/* Bits 4-7 are reserved */
};
enum {
IEEE80211_REPORT_BASIC = 0, /* required */
IEEE80211_REPORT_CCA = 1, /* optional */
IEEE80211_REPORT_RPI = 2, /* optional */
/* 3-255 reserved */
};
struct ieee80211_measurement_params {
u8 channel;
__le64 start_time;
__le16 duration;
} __packed;
struct ieee80211_info_element {
u8 id;
u8 len;
u8 data[0];
} __packed;
struct ieee80211_measurement_request {
struct ieee80211_info_element ie;
u8 token;
u8 mode;
u8 type;
struct ieee80211_measurement_params params[0];
} __packed;
struct ieee80211_measurement_report {
struct ieee80211_info_element ie;
u8 token;
u8 mode;
u8 type;
union {
struct ieee80211_basic_report basic[0];
} u;
} __packed;
#endif

816
drivers/net/wireless/iwlegacy/iwl-sta.c Normal file
View File

@ -0,0 +1,816 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <linux/sched.h>
#include <linux/lockdep.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
/* priv->sta_lock must be held */
static void iwl_legacy_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
{
if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
IWL_ERR(priv,
"ACTIVATE a non DRIVER active station id %u addr %pM\n",
sta_id, priv->stations[sta_id].sta.sta.addr);
if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) {
IWL_DEBUG_ASSOC(priv,
"STA id %u addr %pM already present"
" in uCode (according to driver)\n",
sta_id, priv->stations[sta_id].sta.sta.addr);
} else {
priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n",
sta_id, priv->stations[sta_id].sta.sta.addr);
}
}
static int iwl_legacy_process_add_sta_resp(struct iwl_priv *priv,
struct iwl_legacy_addsta_cmd *addsta,
struct iwl_rx_packet *pkt,
bool sync)
{
u8 sta_id = addsta->sta.sta_id;
unsigned long flags;
int ret = -EIO;
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
pkt->hdr.flags);
return ret;
}
IWL_DEBUG_INFO(priv, "Processing response for adding station %u\n",
sta_id);
spin_lock_irqsave(&priv->sta_lock, flags);
switch (pkt->u.add_sta.status) {
case ADD_STA_SUCCESS_MSK:
IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
iwl_legacy_sta_ucode_activate(priv, sta_id);
ret = 0;
break;
case ADD_STA_NO_ROOM_IN_TABLE:
IWL_ERR(priv, "Adding station %d failed, no room in table.\n",
sta_id);
break;
case ADD_STA_NO_BLOCK_ACK_RESOURCE:
IWL_ERR(priv,
"Adding station %d failed, no block ack resource.\n",
sta_id);
break;
case ADD_STA_MODIFY_NON_EXIST_STA:
IWL_ERR(priv, "Attempting to modify non-existing station %d\n",
sta_id);
break;
default:
IWL_DEBUG_ASSOC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
pkt->u.add_sta.status);
break;
}
IWL_DEBUG_INFO(priv, "%s station id %u addr %pM\n",
priv->stations[sta_id].sta.mode ==
STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
sta_id, priv->stations[sta_id].sta.sta.addr);
/*
* XXX: The MAC address in the command buffer is often changed from
* the original sent to the device. That is, the MAC address
* written to the command buffer often is not the same MAC adress
* read from the command buffer when the command returns. This
* issue has not yet been resolved and this debugging is left to
* observe the problem.
*/
IWL_DEBUG_INFO(priv, "%s station according to cmd buffer %pM\n",
priv->stations[sta_id].sta.mode ==
STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
addsta->sta.addr);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
static void iwl_legacy_add_sta_callback(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt)
{
struct iwl_legacy_addsta_cmd *addsta =
(struct iwl_legacy_addsta_cmd *)cmd->cmd.payload;
iwl_legacy_process_add_sta_resp(priv, addsta, pkt, false);
}
int iwl_legacy_send_add_sta(struct iwl_priv *priv,
struct iwl_legacy_addsta_cmd *sta, u8 flags)
{
struct iwl_rx_packet *pkt = NULL;
int ret = 0;
u8 data[sizeof(*sta)];
struct iwl_host_cmd cmd = {
.id = REPLY_ADD_STA,
.flags = flags,
.data = data,
};
u8 sta_id __maybe_unused = sta->sta.sta_id;
IWL_DEBUG_INFO(priv, "Adding sta %u (%pM) %ssynchronously\n",
sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : "");
if (flags & CMD_ASYNC)
cmd.callback = iwl_legacy_add_sta_callback;
else {
cmd.flags |= CMD_WANT_SKB;
might_sleep();
}
cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
ret = iwl_legacy_send_cmd(priv, &cmd);
if (ret || (flags & CMD_ASYNC))
return ret;
if (ret == 0) {
pkt = (struct iwl_rx_packet *)cmd.reply_page;
ret = iwl_legacy_process_add_sta_resp(priv, sta, pkt, true);
}
iwl_legacy_free_pages(priv, cmd.reply_page);
return ret;
}
EXPORT_SYMBOL(iwl_legacy_send_add_sta);
static void iwl_legacy_set_ht_add_station(struct iwl_priv *priv, u8 index,
struct ieee80211_sta *sta,
struct iwl_rxon_context *ctx)
{
struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap;
__le32 sta_flags;
u8 mimo_ps_mode;
if (!sta || !sta_ht_inf->ht_supported)
goto done;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n",
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
"static" :
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
"dynamic" : "disabled");
sta_flags = priv->stations[index].sta.station_flags;
sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
switch (mimo_ps_mode) {
case WLAN_HT_CAP_SM_PS_STATIC:
sta_flags |= STA_FLG_MIMO_DIS_MSK;
break;
case WLAN_HT_CAP_SM_PS_DYNAMIC:
sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
break;
case WLAN_HT_CAP_SM_PS_DISABLED:
break;
default:
IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode);
break;
}
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
sta_flags |= STA_FLG_HT40_EN_MSK;
else
sta_flags &= ~STA_FLG_HT40_EN_MSK;
priv->stations[index].sta.station_flags = sta_flags;
done:
return;
}
/**
* iwl_legacy_prep_station - Prepare station information for addition
*
* should be called with sta_lock held
*/
u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
const u8 *addr, bool is_ap, struct ieee80211_sta *sta)
{
struct iwl_station_entry *station;
int i;
u8 sta_id = IWL_INVALID_STATION;
u16 rate;
if (is_ap)
sta_id = ctx->ap_sta_id;
else if (is_broadcast_ether_addr(addr))
sta_id = ctx->bcast_sta_id;
else
for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
addr)) {
sta_id = i;
break;
}
if (!priv->stations[i].used &&
sta_id == IWL_INVALID_STATION)
sta_id = i;
}
/*
* These two conditions have the same outcome, but keep them
* separate
*/
if (unlikely(sta_id == IWL_INVALID_STATION))
return sta_id;
/*
* uCode is not able to deal with multiple requests to add a
* station. Keep track if one is in progress so that we do not send
* another.
*/
if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
IWL_DEBUG_INFO(priv,
"STA %d already in process of being added.\n",
sta_id);
return sta_id;
}
if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) &&
!compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) {
IWL_DEBUG_ASSOC(priv,
"STA %d (%pM) already added, not adding again.\n",
sta_id, addr);
return sta_id;
}
station = &priv->stations[sta_id];
station->used = IWL_STA_DRIVER_ACTIVE;
IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n",
sta_id, addr);
priv->num_stations++;
/* Set up the REPLY_ADD_STA command to send to device */
memset(&station->sta, 0, sizeof(struct iwl_legacy_addsta_cmd));
memcpy(station->sta.sta.addr, addr, ETH_ALEN);
station->sta.mode = 0;
station->sta.sta.sta_id = sta_id;
station->sta.station_flags = ctx->station_flags;
station->ctxid = ctx->ctxid;
if (sta) {
struct iwl_station_priv_common *sta_priv;
sta_priv = (void *)sta->drv_priv;
sta_priv->ctx = ctx;
}
/*
* OK to call unconditionally, since local stations (IBSS BSSID
* STA and broadcast STA) pass in a NULL sta, and mac80211
* doesn't allow HT IBSS.
*/
iwl_legacy_set_ht_add_station(priv, sta_id, sta, ctx);
/* 3945 only */
rate = (priv->band == IEEE80211_BAND_5GHZ) ?
IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP;
/* Turn on both antennas for the station... */
station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
return sta_id;
}
EXPORT_SYMBOL_GPL(iwl_legacy_prep_station);
#define STA_WAIT_TIMEOUT (HZ/2)
/**
* iwl_legacy_add_station_common -
*/
int
iwl_legacy_add_station_common(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
const u8 *addr, bool is_ap,
struct ieee80211_sta *sta, u8 *sta_id_r)
{
unsigned long flags_spin;
int ret = 0;
u8 sta_id;
struct iwl_legacy_addsta_cmd sta_cmd;
*sta_id_r = 0;
spin_lock_irqsave(&priv->sta_lock, flags_spin);
sta_id = iwl_legacy_prep_station(priv, ctx, addr, is_ap, sta);
if (sta_id == IWL_INVALID_STATION) {
IWL_ERR(priv, "Unable to prepare station %pM for addition\n",
addr);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EINVAL;
}
/*
* uCode is not able to deal with multiple requests to add a
* station. Keep track if one is in progress so that we do not send
* another.
*/
if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
IWL_DEBUG_INFO(priv,
"STA %d already in process of being added.\n",
sta_id);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EEXIST;
}
if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
IWL_DEBUG_ASSOC(priv,
"STA %d (%pM) already added, not adding again.\n",
sta_id, addr);
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EEXIST;
}
priv->stations[sta_id].used |= IWL_STA_UCODE_INPROGRESS;
memcpy(&sta_cmd, &priv->stations[sta_id].sta,
sizeof(struct iwl_legacy_addsta_cmd));
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
/* Add station to device's station table */
ret = iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
if (ret) {
spin_lock_irqsave(&priv->sta_lock, flags_spin);
IWL_ERR(priv, "Adding station %pM failed.\n",
priv->stations[sta_id].sta.sta.addr);
priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
}
*sta_id_r = sta_id;
return ret;
}
EXPORT_SYMBOL(iwl_legacy_add_station_common);
/**
* iwl_legacy_sta_ucode_deactivate - deactivate ucode status for a station
*
* priv->sta_lock must be held
*/
static void iwl_legacy_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id)
{
/* Ucode must be active and driver must be non active */
if ((priv->stations[sta_id].used &
(IWL_STA_UCODE_ACTIVE | IWL_STA_DRIVER_ACTIVE)) !=
IWL_STA_UCODE_ACTIVE)
IWL_ERR(priv, "removed non active STA %u\n", sta_id);
priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry));
IWL_DEBUG_ASSOC(priv, "Removed STA %u\n", sta_id);
}
static int iwl_legacy_send_remove_station(struct iwl_priv *priv,
const u8 *addr, int sta_id,
bool temporary)
{
struct iwl_rx_packet *pkt;
int ret;
unsigned long flags_spin;
struct iwl_rem_sta_cmd rm_sta_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_REMOVE_STA,
.len = sizeof(struct iwl_rem_sta_cmd),
.flags = CMD_SYNC,
.data = &rm_sta_cmd,
};
memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
rm_sta_cmd.num_sta = 1;
memcpy(&rm_sta_cmd.addr, addr, ETH_ALEN);
cmd.flags |= CMD_WANT_SKB;
ret = iwl_legacy_send_cmd(priv, &cmd);
if (ret)
return ret;
pkt = (struct iwl_rx_packet *)cmd.reply_page;
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
pkt->hdr.flags);
ret = -EIO;
}
if (!ret) {
switch (pkt->u.rem_sta.status) {
case REM_STA_SUCCESS_MSK:
if (!temporary) {
spin_lock_irqsave(&priv->sta_lock, flags_spin);
iwl_legacy_sta_ucode_deactivate(priv, sta_id);
spin_unlock_irqrestore(&priv->sta_lock,
flags_spin);
}
IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
break;
default:
ret = -EIO;
IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
break;
}
}
iwl_legacy_free_pages(priv, cmd.reply_page);
return ret;
}
/**
* iwl_legacy_remove_station - Remove driver's knowledge of station.
*/
int iwl_legacy_remove_station(struct iwl_priv *priv, const u8 sta_id,
const u8 *addr)
{
unsigned long flags;
if (!iwl_legacy_is_ready(priv)) {
IWL_DEBUG_INFO(priv,
"Unable to remove station %pM, device not ready.\n",
addr);
/*
* It is typical for stations to be removed when we are
* going down. Return success since device will be down
* soon anyway
*/
return 0;
}
IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n",
sta_id, addr);
if (WARN_ON(sta_id == IWL_INVALID_STATION))
return -EINVAL;
spin_lock_irqsave(&priv->sta_lock, flags);
if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
IWL_DEBUG_INFO(priv, "Removing %pM but non DRIVER active\n",
addr);
goto out_err;
}
if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
IWL_DEBUG_INFO(priv, "Removing %pM but non UCODE active\n",
addr);
goto out_err;
}
if (priv->stations[sta_id].used & IWL_STA_LOCAL) {
kfree(priv->stations[sta_id].lq);
priv->stations[sta_id].lq = NULL;
}
priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
priv->num_stations--;
BUG_ON(priv->num_stations < 0);
spin_unlock_irqrestore(&priv->sta_lock, flags);
return iwl_legacy_send_remove_station(priv, addr, sta_id, false);
out_err:
spin_unlock_irqrestore(&priv->sta_lock, flags);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(iwl_legacy_remove_station);
/**
* iwl_legacy_clear_ucode_stations - clear ucode station table bits
*
* This function clears all the bits in the driver indicating
* which stations are active in the ucode. Call when something
* other than explicit station management would cause this in
* the ucode, e.g. unassociated RXON.
*/
void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
{
int i;
unsigned long flags_spin;
bool cleared = false;
IWL_DEBUG_INFO(priv, "Clearing ucode stations in driver\n");
spin_lock_irqsave(&priv->sta_lock, flags_spin);
for (i = 0; i < priv->hw_params.max_stations; i++) {
if (ctx && ctx->ctxid != priv->stations[i].ctxid)
continue;
if (priv->stations[i].used & IWL_STA_UCODE_ACTIVE) {
IWL_DEBUG_INFO(priv,
"Clearing ucode active for station %d\n", i);
priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE;
cleared = true;
}
}
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
if (!cleared)
IWL_DEBUG_INFO(priv,
"No active stations found to be cleared\n");
}
EXPORT_SYMBOL(iwl_legacy_clear_ucode_stations);
/**
* iwl_legacy_restore_stations() - Restore driver known stations to device
*
* All stations considered active by driver, but not present in ucode, is
* restored.
*
* Function sleeps.
*/
void
iwl_legacy_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
struct iwl_legacy_addsta_cmd sta_cmd;
struct iwl_link_quality_cmd lq;
unsigned long flags_spin;
int i;
bool found = false;
int ret;
bool send_lq;
if (!iwl_legacy_is_ready(priv)) {
IWL_DEBUG_INFO(priv,
"Not ready yet, not restoring any stations.\n");
return;
}
IWL_DEBUG_ASSOC(priv, "Restoring all known stations ... start.\n");
spin_lock_irqsave(&priv->sta_lock, flags_spin);
for (i = 0; i < priv->hw_params.max_stations; i++) {
if (ctx->ctxid != priv->stations[i].ctxid)
continue;
if ((priv->stations[i].used & IWL_STA_DRIVER_ACTIVE) &&
!(priv->stations[i].used & IWL_STA_UCODE_ACTIVE)) {
IWL_DEBUG_ASSOC(priv, "Restoring sta %pM\n",
priv->stations[i].sta.sta.addr);
priv->stations[i].sta.mode = 0;
priv->stations[i].used |= IWL_STA_UCODE_INPROGRESS;
found = true;
}
}
for (i = 0; i < priv->hw_params.max_stations; i++) {
if ((priv->stations[i].used & IWL_STA_UCODE_INPROGRESS)) {
memcpy(&sta_cmd, &priv->stations[i].sta,
sizeof(struct iwl_legacy_addsta_cmd));
send_lq = false;
if (priv->stations[i].lq) {
memcpy(&lq, priv->stations[i].lq,
sizeof(struct iwl_link_quality_cmd));
send_lq = true;
}
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
ret = iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
if (ret) {
spin_lock_irqsave(&priv->sta_lock, flags_spin);
IWL_ERR(priv, "Adding station %pM failed.\n",
priv->stations[i].sta.sta.addr);
priv->stations[i].used &=
~IWL_STA_DRIVER_ACTIVE;
priv->stations[i].used &=
~IWL_STA_UCODE_INPROGRESS;
spin_unlock_irqrestore(&priv->sta_lock,
flags_spin);
}
/*
* Rate scaling has already been initialized, send
* current LQ command
*/
if (send_lq)
iwl_legacy_send_lq_cmd(priv, ctx, &lq,
CMD_SYNC, true);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS;
}
}
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
if (!found)
IWL_DEBUG_INFO(priv, "Restoring all known stations"
" .... no stations to be restored.\n");
else
IWL_DEBUG_INFO(priv, "Restoring all known stations"
" .... complete.\n");
}
EXPORT_SYMBOL(iwl_legacy_restore_stations);
int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv)
{
int i;
for (i = 0; i < priv->sta_key_max_num; i++)
if (!test_and_set_bit(i, &priv->ucode_key_table))
return i;
return WEP_INVALID_OFFSET;
}
EXPORT_SYMBOL(iwl_legacy_get_free_ucode_key_index);
void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv)
{
unsigned long flags;
int i;
spin_lock_irqsave(&priv->sta_lock, flags);
for (i = 0; i < priv->hw_params.max_stations; i++) {
if (!(priv->stations[i].used & IWL_STA_BCAST))
continue;
priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE;
priv->num_stations--;
BUG_ON(priv->num_stations < 0);
kfree(priv->stations[i].lq);
priv->stations[i].lq = NULL;
}
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
EXPORT_SYMBOL_GPL(iwl_legacy_dealloc_bcast_stations);
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
static void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv,
struct iwl_link_quality_cmd *lq)
{
int i;
IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id);
IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n",
lq->general_params.single_stream_ant_msk,
lq->general_params.dual_stream_ant_msk);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n",
i, lq->rs_table[i].rate_n_flags);
}
#else
static inline void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv,
struct iwl_link_quality_cmd *lq)
{
}
#endif
/**
* iwl_legacy_is_lq_table_valid() - Test one aspect of LQ cmd for validity
*
* It sometimes happens when a HT rate has been in use and we
* loose connectivity with AP then mac80211 will first tell us that the
* current channel is not HT anymore before removing the station. In such a
* scenario the RXON flags will be updated to indicate we are not
* communicating HT anymore, but the LQ command may still contain HT rates.
* Test for this to prevent driver from sending LQ command between the time
* RXON flags are updated and when LQ command is updated.
*/
static bool iwl_legacy_is_lq_table_valid(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct iwl_link_quality_cmd *lq)
{
int i;
if (ctx->ht.enabled)
return true;
IWL_DEBUG_INFO(priv, "Channel %u is not an HT channel\n",
ctx->active.channel);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
if (le32_to_cpu(lq->rs_table[i].rate_n_flags) &
RATE_MCS_HT_MSK) {
IWL_DEBUG_INFO(priv,
"index %d of LQ expects HT channel\n",
i);
return false;
}
}
return true;
}
/**
* iwl_legacy_send_lq_cmd() - Send link quality command
* @init: This command is sent as part of station initialization right
* after station has been added.
*
* The link quality command is sent as the last step of station creation.
* This is the special case in which init is set and we call a callback in
* this case to clear the state indicating that station creation is in
* progress.
*/
int iwl_legacy_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct iwl_link_quality_cmd *lq, u8 flags, bool init)
{
int ret = 0;
unsigned long flags_spin;
struct iwl_host_cmd cmd = {
.id = REPLY_TX_LINK_QUALITY_CMD,
.len = sizeof(struct iwl_link_quality_cmd),
.flags = flags,
.data = lq,
};
if (WARN_ON(lq->sta_id == IWL_INVALID_STATION))
return -EINVAL;
spin_lock_irqsave(&priv->sta_lock, flags_spin);
if (!(priv->stations[lq->sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
return -EINVAL;
}
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
iwl_legacy_dump_lq_cmd(priv, lq);
BUG_ON(init && (cmd.flags & CMD_ASYNC));
if (iwl_legacy_is_lq_table_valid(priv, ctx, lq))
ret = iwl_legacy_send_cmd(priv, &cmd);
else
ret = -EINVAL;
if (cmd.flags & CMD_ASYNC)
return ret;
if (init) {
IWL_DEBUG_INFO(priv, "init LQ command complete,"
" clearing sta addition status for sta %d\n",
lq->sta_id);
spin_lock_irqsave(&priv->sta_lock, flags_spin);
priv->stations[lq->sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
}
return ret;
}
EXPORT_SYMBOL(iwl_legacy_send_lq_cmd);
int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct iwl_priv *priv = hw->priv;
struct iwl_station_priv_common *sta_common = (void *)sta->drv_priv;
int ret;
IWL_DEBUG_INFO(priv, "received request to remove station %pM\n",
sta->addr);
mutex_lock(&priv->mutex);
IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n",
sta->addr);
ret = iwl_legacy_remove_station(priv, sta_common->sta_id, sta->addr);
if (ret)
IWL_ERR(priv, "Error removing station %pM\n",
sta->addr);
mutex_unlock(&priv->mutex);
return ret;
}
EXPORT_SYMBOL(iwl_legacy_mac_sta_remove);

148
drivers/net/wireless/iwlegacy/iwl-sta.h Normal file
View File

@ -0,0 +1,148 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __iwl_legacy_sta_h__
#define __iwl_legacy_sta_h__
#include "iwl-dev.h"
#define HW_KEY_DYNAMIC 0
#define HW_KEY_DEFAULT 1
#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
#define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
being activated */
#define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
(this is for the IBSS BSSID stations) */
#define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
void iwl_legacy_restore_stations(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv);
int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv);
int iwl_legacy_send_add_sta(struct iwl_priv *priv,
struct iwl_legacy_addsta_cmd *sta, u8 flags);
int iwl_legacy_add_station_common(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
const u8 *addr, bool is_ap,
struct ieee80211_sta *sta, u8 *sta_id_r);
int iwl_legacy_remove_station(struct iwl_priv *priv,
const u8 sta_id,
const u8 *addr);
int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
u8 iwl_legacy_prep_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
const u8 *addr, bool is_ap,
struct ieee80211_sta *sta);
int iwl_legacy_send_lq_cmd(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct iwl_link_quality_cmd *lq,
u8 flags, bool init);
/**
* iwl_legacy_clear_driver_stations - clear knowledge of all stations from driver
* @priv: iwl priv struct
*
* This is called during iwl_down() to make sure that in the case
* we're coming there from a hardware restart mac80211 will be
* able to reconfigure stations -- if we're getting there in the
* normal down flow then the stations will already be cleared.
*/
static inline void iwl_legacy_clear_driver_stations(struct iwl_priv *priv)
{
unsigned long flags;
struct iwl_rxon_context *ctx;
spin_lock_irqsave(&priv->sta_lock, flags);
memset(priv->stations, 0, sizeof(priv->stations));
priv->num_stations = 0;
priv->ucode_key_table = 0;
for_each_context(priv, ctx) {
/*
* Remove all key information that is not stored as part
* of station information since mac80211 may not have had
* a chance to remove all the keys. When device is
* reconfigured by mac80211 after an error all keys will
* be reconfigured.
*/
memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
ctx->key_mapping_keys = 0;
}
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
static inline int iwl_legacy_sta_id(struct ieee80211_sta *sta)
{
if (WARN_ON(!sta))
return IWL_INVALID_STATION;
return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
}
/**
* iwl_legacy_sta_id_or_broadcast - return sta_id or broadcast sta
* @priv: iwl priv
* @context: the current context
* @sta: mac80211 station
*
* In certain circumstances mac80211 passes a station pointer
* that may be %NULL, for example during TX or key setup. In
* that case, we need to use the broadcast station, so this
* inline wraps that pattern.
*/
static inline int iwl_legacy_sta_id_or_broadcast(struct iwl_priv *priv,
struct iwl_rxon_context *context,
struct ieee80211_sta *sta)
{
int sta_id;
if (!sta)
return context->bcast_sta_id;
sta_id = iwl_legacy_sta_id(sta);
/*
* mac80211 should not be passing a partially
* initialised station!
*/
WARN_ON(sta_id == IWL_INVALID_STATION);
return sta_id;
}
#endif /* __iwl_legacy_sta_h__ */

637
drivers/net/wireless/iwlegacy/iwl-tx.c Normal file
View File

@ -0,0 +1,637 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/etherdevice.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
/**
* iwl_legacy_txq_update_write_ptr - Send new write index to hardware
*/
void
iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
u32 reg = 0;
int txq_id = txq->q.id;
if (txq->need_update == 0)
return;
/* if we're trying to save power */
if (test_bit(STATUS_POWER_PMI, &priv->status)) {
/* wake up nic if it's powered down ...
* uCode will wake up, and interrupt us again, so next
* time we'll skip this part. */
reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
IWL_DEBUG_INFO(priv,
"Tx queue %d requesting wakeup,"
" GP1 = 0x%x\n", txq_id, reg);
iwl_legacy_set_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
return;
}
iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR,
txq->q.write_ptr | (txq_id << 8));
/*
* else not in power-save mode,
* uCode will never sleep when we're
* trying to tx (during RFKILL, we're not trying to tx).
*/
} else
iwl_write32(priv, HBUS_TARG_WRPTR,
txq->q.write_ptr | (txq_id << 8));
txq->need_update = 0;
}
EXPORT_SYMBOL(iwl_legacy_txq_update_write_ptr);
/**
* iwl_legacy_tx_queue_free - Deallocate DMA queue.
* @txq: Transmit queue to deallocate.
*
* Empty queue by removing and destroying all BD's.
* Free all buffers.
* 0-fill, but do not free "txq" descriptor structure.
*/
void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id)
{
struct iwl_tx_queue *txq = &priv->txq[txq_id];
struct iwl_queue *q = &txq->q;
struct device *dev = &priv->pci_dev->dev;
int i;
if (q->n_bd == 0)
return;
/* first, empty all BD's */
for (; q->write_ptr != q->read_ptr;
q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd))
priv->cfg->ops->lib->txq_free_tfd(priv, txq);
/* De-alloc array of command/tx buffers */
for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
kfree(txq->cmd[i]);
/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
dma_free_coherent(dev, priv->hw_params.tfd_size *
txq->q.n_bd, txq->tfds, txq->q.dma_addr);
/* De-alloc array of per-TFD driver data */
kfree(txq->txb);
txq->txb = NULL;
/* deallocate arrays */
kfree(txq->cmd);
kfree(txq->meta);
txq->cmd = NULL;
txq->meta = NULL;
/* 0-fill queue descriptor structure */
memset(txq, 0, sizeof(*txq));
}
EXPORT_SYMBOL(iwl_legacy_tx_queue_free);
/**
* iwl_legacy_cmd_queue_free - Deallocate DMA queue.
* @txq: Transmit queue to deallocate.
*
* Empty queue by removing and destroying all BD's.
* Free all buffers.
* 0-fill, but do not free "txq" descriptor structure.
*/
void iwl_legacy_cmd_queue_free(struct iwl_priv *priv)
{
struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
struct iwl_queue *q = &txq->q;
struct device *dev = &priv->pci_dev->dev;
int i;
bool huge = false;
if (q->n_bd == 0)
return;
for (; q->read_ptr != q->write_ptr;
q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
/* we have no way to tell if it is a huge cmd ATM */
i = iwl_legacy_get_cmd_index(q, q->read_ptr, 0);
if (txq->meta[i].flags & CMD_SIZE_HUGE) {
huge = true;
continue;
}
pci_unmap_single(priv->pci_dev,
dma_unmap_addr(&txq->meta[i], mapping),
dma_unmap_len(&txq->meta[i], len),
PCI_DMA_BIDIRECTIONAL);
}
if (huge) {
i = q->n_window;
pci_unmap_single(priv->pci_dev,
dma_unmap_addr(&txq->meta[i], mapping),
dma_unmap_len(&txq->meta[i], len),
PCI_DMA_BIDIRECTIONAL);
}
/* De-alloc array of command/tx buffers */
for (i = 0; i <= TFD_CMD_SLOTS; i++)
kfree(txq->cmd[i]);
/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
dma_free_coherent(dev, priv->hw_params.tfd_size * txq->q.n_bd,
txq->tfds, txq->q.dma_addr);
/* deallocate arrays */
kfree(txq->cmd);
kfree(txq->meta);
txq->cmd = NULL;
txq->meta = NULL;
/* 0-fill queue descriptor structure */
memset(txq, 0, sizeof(*txq));
}
EXPORT_SYMBOL(iwl_legacy_cmd_queue_free);
/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
* DMA services
*
* Theory of operation
*
* A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
* of buffer descriptors, each of which points to one or more data buffers for
* the device to read from or fill. Driver and device exchange status of each
* queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
* entries in each circular buffer, to protect against confusing empty and full
* queue states.
*
* The device reads or writes the data in the queues via the device's several
* DMA/FIFO channels. Each queue is mapped to a single DMA channel.
*
* For Tx queue, there are low mark and high mark limits. If, after queuing
* the packet for Tx, free space become < low mark, Tx queue stopped. When
* reclaiming packets (on 'tx done IRQ), if free space become > high mark,
* Tx queue resumed.
*
* See more detailed info in iwl-4965-hw.h.
***************************************************/
int iwl_legacy_queue_space(const struct iwl_queue *q)
{
int s = q->read_ptr - q->write_ptr;
if (q->read_ptr > q->write_ptr)
s -= q->n_bd;
if (s <= 0)
s += q->n_window;
/* keep some reserve to not confuse empty and full situations */
s -= 2;
if (s < 0)
s = 0;
return s;
}
EXPORT_SYMBOL(iwl_legacy_queue_space);
/**
* iwl_legacy_queue_init - Initialize queue's high/low-water and read/write indexes
*/
static int iwl_legacy_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
int count, int slots_num, u32 id)
{
q->n_bd = count;
q->n_window = slots_num;
q->id = id;
/* count must be power-of-two size, otherwise iwl_legacy_queue_inc_wrap
* and iwl_legacy_queue_dec_wrap are broken. */
BUG_ON(!is_power_of_2(count));
/* slots_num must be power-of-two size, otherwise
* iwl_legacy_get_cmd_index is broken. */
BUG_ON(!is_power_of_2(slots_num));
q->low_mark = q->n_window / 4;
if (q->low_mark < 4)
q->low_mark = 4;
q->high_mark = q->n_window / 8;
if (q->high_mark < 2)
q->high_mark = 2;
q->write_ptr = q->read_ptr = 0;
return 0;
}
/**
* iwl_legacy_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
*/
static int iwl_legacy_tx_queue_alloc(struct iwl_priv *priv,
struct iwl_tx_queue *txq, u32 id)
{
struct device *dev = &priv->pci_dev->dev;
size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
/* Driver private data, only for Tx (not command) queues,
* not shared with device. */
if (id != priv->cmd_queue) {
txq->txb = kzalloc(sizeof(txq->txb[0]) *
TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
if (!txq->txb) {
IWL_ERR(priv, "kmalloc for auxiliary BD "
"structures failed\n");
goto error;
}
} else {
txq->txb = NULL;
}
/* Circular buffer of transmit frame descriptors (TFDs),
* shared with device */
txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr,
GFP_KERNEL);
if (!txq->tfds) {
IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n", tfd_sz);
goto error;
}
txq->q.id = id;
return 0;
error:
kfree(txq->txb);
txq->txb = NULL;
return -ENOMEM;
}
/**
* iwl_legacy_tx_queue_init - Allocate and initialize one tx/cmd queue
*/
int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id)
{
int i, len;
int ret;
int actual_slots = slots_num;
/*
* Alloc buffer array for commands (Tx or other types of commands).
* For the command queue (#4/#9), allocate command space + one big
* command for scan, since scan command is very huge; the system will
* not have two scans at the same time, so only one is needed.
* For normal Tx queues (all other queues), no super-size command
* space is needed.
*/
if (txq_id == priv->cmd_queue)
actual_slots++;
txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots,
GFP_KERNEL);
txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * actual_slots,
GFP_KERNEL);
if (!txq->meta || !txq->cmd)
goto out_free_arrays;
len = sizeof(struct iwl_device_cmd);
for (i = 0; i < actual_slots; i++) {
/* only happens for cmd queue */
if (i == slots_num)
len = IWL_MAX_CMD_SIZE;
txq->cmd[i] = kmalloc(len, GFP_KERNEL);
if (!txq->cmd[i])
goto err;
}
/* Alloc driver data array and TFD circular buffer */
ret = iwl_legacy_tx_queue_alloc(priv, txq, txq_id);
if (ret)
goto err;
txq->need_update = 0;
/*
* For the default queues 0-3, set up the swq_id
* already -- all others need to get one later
* (if they need one at all).
*/
if (txq_id < 4)
iwl_legacy_set_swq_id(txq, txq_id, txq_id);
/* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
* iwl_legacy_queue_inc_wrap and iwl_legacy_queue_dec_wrap are broken. */
BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
/* Initialize queue's high/low-water marks, and head/tail indexes */
iwl_legacy_queue_init(priv, &txq->q,
TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
/* Tell device where to find queue */
priv->cfg->ops->lib->txq_init(priv, txq);
return 0;
err:
for (i = 0; i < actual_slots; i++)
kfree(txq->cmd[i]);
out_free_arrays:
kfree(txq->meta);
kfree(txq->cmd);
return -ENOMEM;
}
EXPORT_SYMBOL(iwl_legacy_tx_queue_init);
void iwl_legacy_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id)
{
int actual_slots = slots_num;
if (txq_id == priv->cmd_queue)
actual_slots++;
memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots);
txq->need_update = 0;
/* Initialize queue's high/low-water marks, and head/tail indexes */
iwl_legacy_queue_init(priv, &txq->q,
TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
/* Tell device where to find queue */
priv->cfg->ops->lib->txq_init(priv, txq);
}
EXPORT_SYMBOL(iwl_legacy_tx_queue_reset);
/*************** HOST COMMAND QUEUE FUNCTIONS *****/
/**
* iwl_legacy_enqueue_hcmd - enqueue a uCode command
* @priv: device private data point
* @cmd: a point to the ucode command structure
*
* The function returns < 0 values to indicate the operation is
* failed. On success, it turns the index (> 0) of command in the
* command queue.
*/
int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
struct iwl_queue *q = &txq->q;
struct iwl_device_cmd *out_cmd;
struct iwl_cmd_meta *out_meta;
dma_addr_t phys_addr;
unsigned long flags;
int len;
u32 idx;
u16 fix_size;
cmd->len = priv->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len);
fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
/* If any of the command structures end up being larger than
* the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
* we will need to increase the size of the TFD entries
* Also, check to see if command buffer should not exceed the size
* of device_cmd and max_cmd_size. */
BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
!(cmd->flags & CMD_SIZE_HUGE));
BUG_ON(fix_size > IWL_MAX_CMD_SIZE);
if (iwl_legacy_is_rfkill(priv) || iwl_legacy_is_ctkill(priv)) {
IWL_WARN(priv, "Not sending command - %s KILL\n",
iwl_legacy_is_rfkill(priv) ? "RF" : "CT");
return -EIO;
}
if (iwl_legacy_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
IWL_ERR(priv, "No space in command queue\n");
IWL_ERR(priv, "Restarting adapter due to queue full\n");
queue_work(priv->workqueue, &priv->restart);
return -ENOSPC;
}
spin_lock_irqsave(&priv->hcmd_lock, flags);
/* If this is a huge cmd, mark the huge flag also on the meta.flags
* of the _original_ cmd. This is used for DMA mapping clean up.
*/
if (cmd->flags & CMD_SIZE_HUGE) {
idx = iwl_legacy_get_cmd_index(q, q->write_ptr, 0);
txq->meta[idx].flags = CMD_SIZE_HUGE;
}
idx = iwl_legacy_get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
out_cmd = txq->cmd[idx];
out_meta = &txq->meta[idx];
memset(out_meta, 0, sizeof(*out_meta)); /* re-initialize to NULL */
out_meta->flags = cmd->flags;
if (cmd->flags & CMD_WANT_SKB)
out_meta->source = cmd;
if (cmd->flags & CMD_ASYNC)
out_meta->callback = cmd->callback;
out_cmd->hdr.cmd = cmd->id;
memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
/* At this point, the out_cmd now has all of the incoming cmd
* information */
out_cmd->hdr.flags = 0;
out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(priv->cmd_queue) |
INDEX_TO_SEQ(q->write_ptr));
if (cmd->flags & CMD_SIZE_HUGE)
out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
len = sizeof(struct iwl_device_cmd);
if (idx == TFD_CMD_SLOTS)
len = IWL_MAX_CMD_SIZE;
#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
switch (out_cmd->hdr.cmd) {
case REPLY_TX_LINK_QUALITY_CMD:
case SENSITIVITY_CMD:
IWL_DEBUG_HC_DUMP(priv,
"Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
iwl_legacy_get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
le16_to_cpu(out_cmd->hdr.sequence), fix_size,
q->write_ptr, idx, priv->cmd_queue);
break;
default:
IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, "
"%d bytes at %d[%d]:%d\n",
iwl_legacy_get_cmd_string(out_cmd->hdr.cmd),
out_cmd->hdr.cmd,
le16_to_cpu(out_cmd->hdr.sequence), fix_size,
q->write_ptr, idx, priv->cmd_queue);
}
#endif
txq->need_update = 1;
if (priv->cfg->ops->lib->txq_update_byte_cnt_tbl)
/* Set up entry in queue's byte count circular buffer */
priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0);
phys_addr = pci_map_single(priv->pci_dev, &out_cmd->hdr,
fix_size, PCI_DMA_BIDIRECTIONAL);
dma_unmap_addr_set(out_meta, mapping, phys_addr);
dma_unmap_len_set(out_meta, len, fix_size);
trace_iwlwifi_legacy_dev_hcmd(priv, &out_cmd->hdr,
fix_size, cmd->flags);
priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
phys_addr, fix_size, 1,
U32_PAD(cmd->len));
/* Increment and update queue's write index */
q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd);
iwl_legacy_txq_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->hcmd_lock, flags);
return idx;
}
/**
* iwl_legacy_hcmd_queue_reclaim - Reclaim TX command queue entries already Tx'd
*
* When FW advances 'R' index, all entries between old and new 'R' index
* need to be reclaimed. As result, some free space forms. If there is
* enough free space (> low mark), wake the stack that feeds us.
*/
static void iwl_legacy_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id,
int idx, int cmd_idx)
{
struct iwl_tx_queue *txq = &priv->txq[txq_id];
struct iwl_queue *q = &txq->q;
int nfreed = 0;
if ((idx >= q->n_bd) || (iwl_legacy_queue_used(q, idx) == 0)) {
IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
"is out of range [0-%d] %d %d.\n", txq_id,
idx, q->n_bd, q->write_ptr, q->read_ptr);
return;
}
for (idx = iwl_legacy_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
if (nfreed++ > 0) {
IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", idx,
q->write_ptr, q->read_ptr);
queue_work(priv->workqueue, &priv->restart);
}
}
}
/**
* iwl_legacy_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
* @rxb: Rx buffer to reclaim
*
* If an Rx buffer has an async callback associated with it the callback
* will be executed. The attached skb (if present) will only be freed
* if the callback returns 1
*/
void
iwl_legacy_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
u16 sequence = le16_to_cpu(pkt->hdr.sequence);
int txq_id = SEQ_TO_QUEUE(sequence);
int index = SEQ_TO_INDEX(sequence);
int cmd_index;
bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
struct iwl_device_cmd *cmd;
struct iwl_cmd_meta *meta;
struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
/* If a Tx command is being handled and it isn't in the actual
* command queue then there a command routing bug has been introduced
* in the queue management code. */
if (WARN(txq_id != priv->cmd_queue,
"wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n",
txq_id, priv->cmd_queue, sequence,
priv->txq[priv->cmd_queue].q.read_ptr,
priv->txq[priv->cmd_queue].q.write_ptr)) {
iwl_print_hex_error(priv, pkt, 32);
return;
}
/* If this is a huge cmd, clear the huge flag on the meta.flags
* of the _original_ cmd. So that iwl_legacy_cmd_queue_free won't unmap
* the DMA buffer for the scan (huge) command.
*/
if (huge) {
cmd_index = iwl_legacy_get_cmd_index(&txq->q, index, 0);
txq->meta[cmd_index].flags = 0;
}
cmd_index = iwl_legacy_get_cmd_index(&txq->q, index, huge);
cmd = txq->cmd[cmd_index];
meta = &txq->meta[cmd_index];
pci_unmap_single(priv->pci_dev,
dma_unmap_addr(meta, mapping),
dma_unmap_len(meta, len),
PCI_DMA_BIDIRECTIONAL);
/* Input error checking is done when commands are added to queue. */
if (meta->flags & CMD_WANT_SKB) {
meta->source->reply_page = (unsigned long)rxb_addr(rxb);
rxb->page = NULL;
} else if (meta->callback)
meta->callback(priv, cmd, pkt);
iwl_legacy_hcmd_queue_reclaim(priv, txq_id, index, cmd_index);
if (!(meta->flags & CMD_ASYNC)) {
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n",
iwl_legacy_get_cmd_string(cmd->hdr.cmd));
wake_up_interruptible(&priv->wait_command_queue);
}
meta->flags = 0;
}
EXPORT_SYMBOL(iwl_legacy_tx_cmd_complete);

536
drivers/net/wireless/iwlwifi/iwl3945-base.c → drivers/net/wireless/iwlegacy/iwl3945-base.c
View File

File diff suppressed because it is too large Load Diff

3633
drivers/net/wireless/iwlegacy/iwl4965-base.c Normal file
View File

File diff suppressed because it is too large Load Diff

124
drivers/net/wireless/iwlwifi/Kconfig
View File

@ -1,18 +1,52 @@
config IWLWIFI
tristate "Intel Wireless Wifi"
config IWLAGN
tristate "Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlagn) "
depends on PCI && MAC80211
select FW_LOADER
select NEW_LEDS
select LEDS_CLASS
select LEDS_TRIGGERS
select MAC80211_LEDS
---help---
Select to build the driver supporting the:
Intel Wireless WiFi Link Next-Gen AGN
This option enables support for use with the following hardware:
Intel Wireless WiFi Link 6250AGN Adapter
Intel 6000 Series Wi-Fi Adapters (6200AGN and 6300AGN)
Intel WiFi Link 1000BGN
Intel Wireless WiFi 5150AGN
Intel Wireless WiFi 5100AGN, 5300AGN, and 5350AGN
Intel 6005 Series Wi-Fi Adapters
Intel 6030 Series Wi-Fi Adapters
Intel Wireless WiFi Link 6150BGN 2 Adapter
Intel 100 Series Wi-Fi Adapters (100BGN and 130BGN)
Intel 2000 Series Wi-Fi Adapters
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.txt>. The
module will be called iwlagn.
menu "Debugging Options"
depends on IWLWIFI
depends on IWLAGN
config IWLWIFI_DEBUG
bool "Enable full debugging output in iwlagn and iwl3945 drivers"
depends on IWLWIFI
bool "Enable full debugging output in the iwlagn driver"
depends on IWLAGN
---help---
This option will enable debug tracing output for the iwlwifi drivers
@ -37,7 +71,7 @@ config IWLWIFI_DEBUG
config IWLWIFI_DEBUGFS
bool "iwlagn debugfs support"
depends on IWLWIFI && MAC80211_DEBUGFS
depends on IWLAGN && MAC80211_DEBUGFS
---help---
Enable creation of debugfs files for the iwlwifi drivers. This
is a low-impact option that allows getting insight into the
@ -45,13 +79,13 @@ config IWLWIFI_DEBUGFS
config IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
bool "Experimental uCode support"
depends on IWLWIFI && IWLWIFI_DEBUG
depends on IWLAGN && IWLWIFI_DEBUG
---help---
Enable use of experimental ucode for testing and debugging.
config IWLWIFI_DEVICE_TRACING
bool "iwlwifi device access tracing"
depends on IWLWIFI
depends on IWLAGN
depends on EVENT_TRACING
help
Say Y here to trace all commands, including TX frames and IO
@ -68,57 +102,9 @@ config IWLWIFI_DEVICE_TRACING
occur.
endmenu
config IWLAGN
tristate "Intel Wireless WiFi Next Gen AGN (iwlagn)"
depends on IWLWIFI
---help---
Select to build the driver supporting the:
Intel Wireless WiFi Link Next-Gen AGN
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.txt>. The
module will be called iwlagn.
config IWL4965
bool "Intel Wireless WiFi 4965AGN"
depends on IWLAGN
---help---
This option enables support for Intel Wireless WiFi Link 4965AGN
config IWL5000
bool "Intel Wireless-N/Advanced-N/Ultimate-N WiFi Link"
depends on IWLAGN
---help---
This option enables support for use with the following hardware:
Intel Wireless WiFi Link 6250AGN Adapter
Intel 6000 Series Wi-Fi Adapters (6200AGN and 6300AGN)
Intel WiFi Link 1000BGN
Intel Wireless WiFi 5150AGN
Intel Wireless WiFi 5100AGN, 5300AGN, and 5350AGN
Intel 6005 Series Wi-Fi Adapters
Intel 6030 Series Wi-Fi Adapters
Intel Wireless WiFi Link 6150BGN 2 Adapter
Intel 100 Series Wi-Fi Adapters (100BGN and 130BGN)
Intel 2000 Series Wi-Fi Adapters
config IWL_P2P
bool "iwlwifi experimental P2P support"
depends on IWL5000
depends on IWLAGN
help
This option enables experimental P2P support for some devices
based on microcode support. Since P2P support is still under
@ -132,27 +118,3 @@ config IWL_P2P
Say Y only if you want to experiment with P2P.
config IWL3945
tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)"
depends on IWLWIFI
---help---
Select to build the driver supporting the:
Intel PRO/Wireless 3945ABG/BG Network Connection
This driver uses the kernel's mac80211 subsystem.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
<http://intellinuxwireless.org/>.
The microcode is typically installed in /lib/firmware. You can
look in the hotplug script /etc/hotplug/firmware.agent to
determine which directory FIRMWARE_DIR is set to when the script
runs.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read <file:Documentation/kbuild/modules.txt>. The
module will be called iwl3945.

39
drivers/net/wireless/iwlwifi/Makefile
View File

@ -1,36 +1,23 @@
obj-$(CONFIG_IWLWIFI) += iwlcore.o
iwlcore-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
iwlcore-objs += iwl-rx.o iwl-tx.o iwl-sta.o
iwlcore-objs += iwl-scan.o iwl-led.o
iwlcore-$(CONFIG_IWL3945) += iwl-legacy.o
iwlcore-$(CONFIG_IWL4965) += iwl-legacy.o
iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
iwlcore-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
# If 3945 is selected only, iwl-legacy.o will be added
# to iwlcore-m above, but it needs to be built in.
iwlcore-objs += $(iwlcore-m)
CFLAGS_iwl-devtrace.o := -I$(src)
# AGN
obj-$(CONFIG_IWLAGN) += iwlagn.o
iwlagn-objs := iwl-agn.o iwl-agn-rs.o iwl-agn-led.o
iwlagn-objs += iwl-agn-ucode.o iwl-agn-tx.o
iwlagn-objs += iwl-agn-lib.o iwl-agn-rx.o iwl-agn-calib.o
iwlagn-objs += iwl-agn-tt.o iwl-agn-sta.o iwl-agn-eeprom.o
iwlagn-objs += iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
iwlagn-objs += iwl-rx.o iwl-tx.o iwl-sta.o
iwlagn-objs += iwl-scan.o iwl-led.o
iwlagn-objs += iwl-agn-rxon.o iwl-agn-hcmd.o iwl-agn-ict.o
iwlagn-objs += iwl-5000.o
iwlagn-objs += iwl-6000.o
iwlagn-objs += iwl-1000.o
iwlagn-objs += iwl-2000.o
iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-agn-debugfs.o
iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
iwlagn-$(CONFIG_IWL4965) += iwl-4965.o
iwlagn-$(CONFIG_IWL5000) += iwl-agn-rxon.o iwl-agn-hcmd.o iwl-agn-ict.o
iwlagn-$(CONFIG_IWL5000) += iwl-5000.o
iwlagn-$(CONFIG_IWL5000) += iwl-6000.o
iwlagn-$(CONFIG_IWL5000) += iwl-1000.o
iwlagn-$(CONFIG_IWL5000) += iwl-2000.o
# 3945
obj-$(CONFIG_IWL3945) += iwl3945.o
iwl3945-objs := iwl3945-base.o iwl-3945.o iwl-3945-rs.o iwl-3945-led.o
iwl3945-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-3945-debugfs.o
CFLAGS_iwl-devtrace.o := -I$(src)
ccflags-y += -D__CHECK_ENDIAN__

35
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -86,7 +86,6 @@ MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_VERSION(DRV_VERSION);
MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
MODULE_LICENSE("GPL");
MODULE_ALIAS("iwl4965");
static int iwlagn_ant_coupling;
static bool iwlagn_bt_ch_announce = 1;
@ -466,6 +465,15 @@ static void iwl_rx_reply_alive(struct iwl_priv *priv,
IWL_WARN(priv, "%s uCode did not respond OK.\n",
(palive->ver_subtype == INITIALIZE_SUBTYPE) ?
"init" : "runtime");
/*
* If fail to load init uCode,
* let's try to load the init uCode again.
* We should not get into this situation, but if it
* does happen, we should not move on and loading "runtime"
* without proper calibrate the device.
*/
if (palive->ver_subtype == INITIALIZE_SUBTYPE)
priv->ucode_type = UCODE_NONE;
queue_work(priv->workqueue, &priv->restart);
}
}
@ -2735,9 +2743,11 @@ static void iwl_alive_start(struct iwl_priv *priv)
priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
}
if (priv->cfg->bt_params &&
!priv->cfg->bt_params->advanced_bt_coexist) {
/* Configure Bluetooth device coexistence support */
if (!priv->cfg->bt_params || (priv->cfg->bt_params &&
!priv->cfg->bt_params->advanced_bt_coexist)) {
/*
* default is 2-wire BT coexexistence support
*/
priv->cfg->ops->hcmd->send_bt_config(priv);
}
@ -3799,7 +3809,6 @@ static void iwlagn_bg_roc_done(struct work_struct *work)
mutex_unlock(&priv->mutex);
}
#ifdef CONFIG_IWL5000
static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
struct ieee80211_channel *channel,
enum nl80211_channel_type channel_type,
@ -3855,7 +3864,6 @@ static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
return 0;
}
#endif
/*****************************************************************************
*
@ -4025,7 +4033,6 @@ static void iwl_uninit_drv(struct iwl_priv *priv)
kfree(priv->scan_cmd);
}
#ifdef CONFIG_IWL5000
struct ieee80211_ops iwlagn_hw_ops = {
.tx = iwlagn_mac_tx,
.start = iwlagn_mac_start,
@ -4050,7 +4057,6 @@ struct ieee80211_ops iwlagn_hw_ops = {
.remain_on_channel = iwl_mac_remain_on_channel,
.cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel,
};
#endif
static void iwl_hw_detect(struct iwl_priv *priv)
{
@ -4118,12 +4124,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (cfg->mod_params->disable_hw_scan) {
dev_printk(KERN_DEBUG, &(pdev->dev),
"sw scan support is deprecated\n");
#ifdef CONFIG_IWL5000
iwlagn_hw_ops.hw_scan = NULL;
#endif
#ifdef CONFIG_IWL4965
iwl4965_hw_ops.hw_scan = NULL;
#endif
}
hw = iwl_alloc_all(cfg);
@ -4502,12 +4503,6 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
/* Hardware specific file defines the PCI IDs table for that hardware module */
static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
#ifdef CONFIG_IWL4965
{IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
{IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
#endif /* CONFIG_IWL4965 */
#ifdef CONFIG_IWL5000
/* 5100 Series WiFi */
{IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
{IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
{IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
@ -4693,8 +4688,6 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
{IWL_PCI_DEVICE(0x0893, 0x0266, iwl230_bg_cfg)},
{IWL_PCI_DEVICE(0x0892, 0x0466, iwl230_bg_cfg)},
#endif /* CONFIG_IWL5000 */
{0}
};
MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);

76
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@ -43,11 +43,6 @@
#include "iwl-helpers.h"
MODULE_DESCRIPTION("iwl core");
MODULE_VERSION(IWLWIFI_VERSION);
MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
MODULE_LICENSE("GPL");
/*
* set bt_coex_active to true, uCode will do kill/defer
* every time the priority line is asserted (BT is sending signals on the
@ -65,15 +60,12 @@ MODULE_LICENSE("GPL");
* default: bt_coex_active = true (BT_COEX_ENABLE)
*/
bool bt_coex_active = true;
EXPORT_SYMBOL_GPL(bt_coex_active);
module_param(bt_coex_active, bool, S_IRUGO);
MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
u32 iwl_debug_level;
EXPORT_SYMBOL(iwl_debug_level);
const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
EXPORT_SYMBOL(iwl_bcast_addr);
/* This function both allocates and initializes hw and priv. */
@ -98,7 +90,6 @@ struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg)
out:
return hw;
}
EXPORT_SYMBOL(iwl_alloc_all);
#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
@ -272,7 +263,6 @@ int iwlcore_init_geos(struct iwl_priv *priv)
return 0;
}
EXPORT_SYMBOL(iwlcore_init_geos);
/*
* iwlcore_free_geos - undo allocations in iwlcore_init_geos
@ -283,7 +273,6 @@ void iwlcore_free_geos(struct iwl_priv *priv)
kfree(priv->ieee_rates);
clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
}
EXPORT_SYMBOL(iwlcore_free_geos);
static bool iwl_is_channel_extension(struct iwl_priv *priv,
enum ieee80211_band band,
@ -328,7 +317,6 @@ bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
le16_to_cpu(ctx->staging.channel),
ctx->ht.extension_chan_offset);
}
EXPORT_SYMBOL(iwl_is_ht40_tx_allowed);
static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
{
@ -429,7 +417,6 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
return iwl_send_cmd_pdu(priv, ctx->rxon_timing_cmd,
sizeof(ctx->timing), &ctx->timing);
}
EXPORT_SYMBOL(iwl_send_rxon_timing);
void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
int hw_decrypt)
@ -442,7 +429,6 @@ void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
}
EXPORT_SYMBOL(iwl_set_rxon_hwcrypto);
/* validate RXON structure is valid */
int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
@ -515,7 +501,6 @@ int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
}
return 0;
}
EXPORT_SYMBOL(iwl_check_rxon_cmd);
/**
* iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
@ -579,7 +564,6 @@ int iwl_full_rxon_required(struct iwl_priv *priv,
return 0;
}
EXPORT_SYMBOL(iwl_full_rxon_required);
u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
struct iwl_rxon_context *ctx)
@ -593,7 +577,6 @@ u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
else
return IWL_RATE_6M_PLCP;
}
EXPORT_SYMBOL(iwl_rate_get_lowest_plcp);
static void _iwl_set_rxon_ht(struct iwl_priv *priv,
struct iwl_ht_config *ht_conf,
@ -670,7 +653,6 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
for_each_context(priv, ctx)
_iwl_set_rxon_ht(priv, ht_conf, ctx);
}
EXPORT_SYMBOL(iwl_set_rxon_ht);
/* Return valid, unused, channel for a passive scan to reset the RF */
u8 iwl_get_single_channel_number(struct iwl_priv *priv,
@ -711,7 +693,6 @@ u8 iwl_get_single_channel_number(struct iwl_priv *priv,
return channel;
}
EXPORT_SYMBOL(iwl_get_single_channel_number);
/**
* iwl_set_rxon_channel - Set the band and channel values in staging RXON
@ -742,7 +723,6 @@ int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
return 0;
}
EXPORT_SYMBOL(iwl_set_rxon_channel);
void iwl_set_flags_for_band(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
@ -766,7 +746,6 @@ void iwl_set_flags_for_band(struct iwl_priv *priv,
ctx->staging.flags &= ~RXON_FLG_CCK_MSK;
}
}
EXPORT_SYMBOL(iwl_set_flags_for_band);
/*
* initialize rxon structure with default values from eeprom
@ -838,7 +817,6 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv,
ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff;
ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff;
}
EXPORT_SYMBOL(iwl_connection_init_rx_config);
void iwl_set_rate(struct iwl_priv *priv)
{
@ -871,7 +849,6 @@ void iwl_set_rate(struct iwl_priv *priv)
(IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
}
}
EXPORT_SYMBOL(iwl_set_rate);
void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
{
@ -891,7 +868,6 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
mutex_unlock(&priv->mutex);
}
}
EXPORT_SYMBOL(iwl_chswitch_done);
void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
{
@ -919,7 +895,6 @@ void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
}
}
}
EXPORT_SYMBOL(iwl_rx_csa);
#ifdef CONFIG_IWLWIFI_DEBUG
void iwl_print_rx_config_cmd(struct iwl_priv *priv,
@ -941,13 +916,15 @@ void iwl_print_rx_config_cmd(struct iwl_priv *priv,
IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
}
EXPORT_SYMBOL(iwl_print_rx_config_cmd);
#endif
/**
* iwl_irq_handle_error - called for HW or SW error interrupt from card
*/
void iwl_irq_handle_error(struct iwl_priv *priv)
{
unsigned int reload_msec;
unsigned long reload_jiffies;
/* Set the FW error flag -- cleared on iwl_down */
set_bit(STATUS_FW_ERROR, &priv->status);
@ -991,6 +968,25 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
* commands by clearing the INIT status bit */
clear_bit(STATUS_READY, &priv->status);
/*
* If firmware keep reloading, then it indicate something
* serious wrong and firmware having problem to recover
* from it. Instead of keep trying which will fill the syslog
* and hang the system, let's just stop it
*/
reload_jiffies = jiffies;
reload_msec = jiffies_to_msecs((long) reload_jiffies -
(long) priv->reload_jiffies);
priv->reload_jiffies = reload_jiffies;
if (reload_msec <= IWL_MIN_RELOAD_DURATION) {
priv->reload_count++;
if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) {
IWL_ERR(priv, "BUG_ON, Stop restarting\n");
return;
}
} else
priv->reload_count = 0;
if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
"Restarting adapter due to uCode error.\n");
@ -999,7 +995,6 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
queue_work(priv->workqueue, &priv->restart);
}
}
EXPORT_SYMBOL(iwl_irq_handle_error);
static int iwl_apm_stop_master(struct iwl_priv *priv)
{
@ -1036,7 +1031,6 @@ void iwl_apm_stop(struct iwl_priv *priv)
*/
iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
}
EXPORT_SYMBOL(iwl_apm_stop);
/*
@ -1151,7 +1145,6 @@ int iwl_apm_init(struct iwl_priv *priv)
out:
return ret;
}
EXPORT_SYMBOL(iwl_apm_init);
int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
@ -1211,7 +1204,6 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
}
return ret;
}
EXPORT_SYMBOL(iwl_set_tx_power);
void iwl_send_bt_config(struct iwl_priv *priv)
{
@ -1235,7 +1227,6 @@ void iwl_send_bt_config(struct iwl_priv *priv)
sizeof(struct iwl_bt_cmd), &bt_cmd))
IWL_ERR(priv, "failed to send BT Coex Config\n");
}
EXPORT_SYMBOL(iwl_send_bt_config);
int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
{
@ -1253,7 +1244,6 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
sizeof(struct iwl_statistics_cmd),
&statistics_cmd);
}
EXPORT_SYMBOL(iwl_send_statistics_request);
void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
@ -1265,7 +1255,6 @@ void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
sleep->pm_sleep_mode, sleep->pm_wakeup_src);
#endif
}
EXPORT_SYMBOL(iwl_rx_pm_sleep_notif);
void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
@ -1277,7 +1266,6 @@ void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
get_cmd_string(pkt->hdr.cmd));
iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
}
EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
void iwl_rx_reply_error(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
@ -1292,7 +1280,6 @@ void iwl_rx_reply_error(struct iwl_priv *priv,
le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
le32_to_cpu(pkt->u.err_resp.error_info));
}
EXPORT_SYMBOL(iwl_rx_reply_error);
void iwl_clear_isr_stats(struct iwl_priv *priv)
{
@ -1344,7 +1331,6 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
IWL_DEBUG_MAC80211(priv, "leave\n");
return 0;
}
EXPORT_SYMBOL(iwl_mac_conf_tx);
int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw)
{
@ -1352,7 +1338,6 @@ int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw)
return priv->ibss_manager == IWL_IBSS_MANAGER;
}
EXPORT_SYMBOL_GPL(iwl_mac_tx_last_beacon);
static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
@ -1462,7 +1447,6 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
IWL_DEBUG_MAC80211(priv, "leave\n");
return err;
}
EXPORT_SYMBOL(iwl_mac_add_interface);
static void iwl_teardown_interface(struct iwl_priv *priv,
struct ieee80211_vif *vif,
@ -1515,7 +1499,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw,
IWL_DEBUG_MAC80211(priv, "leave\n");
}
EXPORT_SYMBOL(iwl_mac_remove_interface);
int iwl_alloc_txq_mem(struct iwl_priv *priv)
{
@ -1530,14 +1513,12 @@ int iwl_alloc_txq_mem(struct iwl_priv *priv)
}
return 0;
}
EXPORT_SYMBOL(iwl_alloc_txq_mem);
void iwl_free_txq_mem(struct iwl_priv *priv)
{
kfree(priv->txq);
priv->txq = NULL;
}
EXPORT_SYMBOL(iwl_free_txq_mem);
#ifdef CONFIG_IWLWIFI_DEBUGFS
@ -1576,7 +1557,6 @@ int iwl_alloc_traffic_mem(struct iwl_priv *priv)
iwl_reset_traffic_log(priv);
return 0;
}
EXPORT_SYMBOL(iwl_alloc_traffic_mem);
void iwl_free_traffic_mem(struct iwl_priv *priv)
{
@ -1586,7 +1566,6 @@ void iwl_free_traffic_mem(struct iwl_priv *priv)
kfree(priv->rx_traffic);
priv->rx_traffic = NULL;
}
EXPORT_SYMBOL(iwl_free_traffic_mem);
void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header)
@ -1611,7 +1590,6 @@ void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
(priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
}
}
EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame);
void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
u16 length, struct ieee80211_hdr *header)
@ -1636,7 +1614,6 @@ void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
(priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
}
}
EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame);
const char *get_mgmt_string(int cmd)
{
@ -1773,7 +1750,6 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
stats->data_bytes += len;
}
}
EXPORT_SYMBOL(iwl_update_stats);
#endif
static void iwl_force_rf_reset(struct iwl_priv *priv)
@ -1912,7 +1888,6 @@ int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
mutex_unlock(&priv->mutex);
return err;
}
EXPORT_SYMBOL(iwl_mac_change_interface);
/*
* On every watchdog tick we check (latest) time stamp. If it does not
@ -1984,7 +1959,6 @@ void iwl_bg_watchdog(unsigned long data)
mod_timer(&priv->watchdog, jiffies +
msecs_to_jiffies(IWL_WD_TICK(timeout)));
}
EXPORT_SYMBOL(iwl_bg_watchdog);
void iwl_setup_watchdog(struct iwl_priv *priv)
{
@ -1996,7 +1970,6 @@ void iwl_setup_watchdog(struct iwl_priv *priv)
else
del_timer(&priv->watchdog);
}
EXPORT_SYMBOL(iwl_setup_watchdog);
/*
* extended beacon time format
@ -2022,7 +1995,6 @@ u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval)
return (quot << priv->hw_params.beacon_time_tsf_bits) + rem;
}
EXPORT_SYMBOL(iwl_usecs_to_beacons);
/* base is usually what we get from ucode with each received frame,
* the same as HW timer counter counting down
@ -2050,7 +2022,6 @@ __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
return cpu_to_le32(res);
}
EXPORT_SYMBOL(iwl_add_beacon_time);
#ifdef CONFIG_PM
@ -2070,7 +2041,6 @@ int iwl_pci_suspend(struct device *device)
return 0;
}
EXPORT_SYMBOL(iwl_pci_suspend);
int iwl_pci_resume(struct device *device)
{
@ -2099,7 +2069,6 @@ int iwl_pci_resume(struct device *device)
return 0;
}
EXPORT_SYMBOL(iwl_pci_resume);
const struct dev_pm_ops iwl_pm_ops = {
.suspend = iwl_pci_suspend,
@ -2109,6 +2078,5 @@ const struct dev_pm_ops iwl_pm_ops = {
.poweroff = iwl_pci_suspend,
.restore = iwl_pci_resume,
};
EXPORT_SYMBOL(iwl_pm_ops);
#endif /* CONFIG_PM */

2
drivers/net/wireless/iwlwifi/iwl-debugfs.c
View File

@ -1788,7 +1788,6 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
iwl_dbgfs_unregister(priv);
return -ENOMEM;
}
EXPORT_SYMBOL(iwl_dbgfs_register);
/**
* Remove the debugfs files and directories
@ -1802,7 +1801,6 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
debugfs_remove_recursive(priv->debugfs_dir);
priv->debugfs_dir = NULL;
}
EXPORT_SYMBOL(iwl_dbgfs_unregister);

13
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -43,14 +43,14 @@
#include "iwl-prph.h"
#include "iwl-fh.h"
#include "iwl-debug.h"
#include "iwl-4965-hw.h"
#include "iwl-3945-hw.h"
#include "iwl-agn-hw.h"
#include "iwl-led.h"
#include "iwl-power.h"
#include "iwl-agn-rs.h"
#include "iwl-agn-tt.h"
#define U32_PAD(n) ((4-(n))&0x3)
struct iwl_tx_queue;
/* CT-KILL constants */
@ -1110,6 +1110,11 @@ struct iwl_event_log {
/* BT Antenna Coupling Threshold (dB) */
#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
/* Firmware reload counter and Timestamp */
#define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
#define IWL_MAX_CONTINUE_RELOAD_CNT 4
enum iwl_reset {
IWL_RF_RESET = 0,
IWL_FW_RESET,
@ -1262,6 +1267,10 @@ struct iwl_priv {
/* force reset */
struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
/* firmware reload counter and timestamp */
unsigned long reload_jiffies;
int reload_count;
/* we allocate array of iwl_channel_info for NIC's valid channels.
* Access via channel # using indirect index array */
struct iwl_channel_info *channel_info; /* channel info array */

8
drivers/net/wireless/iwlwifi/iwl-eeprom.c
View File

@ -222,7 +222,6 @@ const u8 *iwlcore_eeprom_query_addr(const struct iwl_priv *priv, size_t offset)
BUG_ON(offset >= priv->cfg->base_params->eeprom_size);
return &priv->eeprom[offset];
}
EXPORT_SYMBOL(iwlcore_eeprom_query_addr);
static int iwl_init_otp_access(struct iwl_priv *priv)
{
@ -382,7 +381,6 @@ const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset)
{
return priv->cfg->ops->lib->eeprom_ops.query_addr(priv, offset);
}
EXPORT_SYMBOL(iwl_eeprom_query_addr);
u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset)
{
@ -390,7 +388,6 @@ u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset)
return 0;
return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8);
}
EXPORT_SYMBOL(iwl_eeprom_query16);
/**
* iwl_eeprom_init - read EEPROM contents
@ -509,14 +506,12 @@ int iwl_eeprom_init(struct iwl_priv *priv)
alloc_err:
return ret;
}
EXPORT_SYMBOL(iwl_eeprom_init);
void iwl_eeprom_free(struct iwl_priv *priv)
{
kfree(priv->eeprom);
priv->eeprom = NULL;
}
EXPORT_SYMBOL(iwl_eeprom_free);
static void iwl_init_band_reference(const struct iwl_priv *priv,
int eep_band, int *eeprom_ch_count,
@ -779,7 +774,6 @@ int iwl_init_channel_map(struct iwl_priv *priv)
return 0;
}
EXPORT_SYMBOL(iwl_init_channel_map);
/*
* iwl_free_channel_map - undo allocations in iwl_init_channel_map
@ -789,7 +783,6 @@ void iwl_free_channel_map(struct iwl_priv *priv)
kfree(priv->channel_info);
priv->channel_count = 0;
}
EXPORT_SYMBOL(iwl_free_channel_map);
/**
* iwl_get_channel_info - Find driver's private channel info
@ -818,4 +811,3 @@ const struct iwl_channel_info *iwl_get_channel_info(const struct iwl_priv *priv,
return NULL;
}
EXPORT_SYMBOL(iwl_get_channel_info);

5
drivers/net/wireless/iwlwifi/iwl-hcmd.c
View File

@ -114,7 +114,6 @@ const char *get_cmd_string(u8 cmd)
}
}
EXPORT_SYMBOL(get_cmd_string);
#define HOST_COMPLETE_TIMEOUT (HZ / 2)
@ -253,7 +252,6 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
mutex_unlock(&priv->sync_cmd_mutex);
return ret;
}
EXPORT_SYMBOL(iwl_send_cmd_sync);
int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
@ -262,7 +260,6 @@ int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
return iwl_send_cmd_sync(priv, cmd);
}
EXPORT_SYMBOL(iwl_send_cmd);
int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
{
@ -274,7 +271,6 @@ int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
return iwl_send_cmd_sync(priv, &cmd);
}
EXPORT_SYMBOL(iwl_send_cmd_pdu);
int iwl_send_cmd_pdu_async(struct iwl_priv *priv,
u8 id, u16 len, const void *data,
@ -293,4 +289,3 @@ int iwl_send_cmd_pdu_async(struct iwl_priv *priv,
return iwl_send_cmd_async(priv, &cmd);
}
EXPORT_SYMBOL(iwl_send_cmd_pdu_async);

2
drivers/net/wireless/iwlwifi/iwl-led.c
View File

@ -175,7 +175,6 @@ void iwl_leds_init(struct iwl_priv *priv)
priv->led_registered = true;
}
EXPORT_SYMBOL(iwl_leds_init);
void iwl_leds_exit(struct iwl_priv *priv)
{
@ -185,4 +184,3 @@ void iwl_leds_exit(struct iwl_priv *priv)
led_classdev_unregister(&priv->led);
kfree(priv->led.name);
}
EXPORT_SYMBOL(iwl_leds_exit);

657
drivers/net/wireless/iwlwifi/iwl-legacy.c
View File

@ -1,657 +0,0 @@
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <net/mac80211.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-helpers.h"
#include "iwl-legacy.h"
static void iwl_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
if (!ctx->is_active)
return;
ctx->qos_data.def_qos_parm.qos_flags = 0;
if (ctx->qos_data.qos_active)
ctx->qos_data.def_qos_parm.qos_flags |=
QOS_PARAM_FLG_UPDATE_EDCA_MSK;
if (ctx->ht.enabled)
ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
ctx->qos_data.qos_active,
ctx->qos_data.def_qos_parm.qos_flags);
iwl_send_cmd_pdu_async(priv, ctx->qos_cmd,
sizeof(struct iwl_qosparam_cmd),
&ctx->qos_data.def_qos_parm, NULL);
}
/**
* iwl_legacy_mac_config - mac80211 config callback
*/
int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed)
{
struct iwl_priv *priv = hw->priv;
const struct iwl_channel_info *ch_info;
struct ieee80211_conf *conf = &hw->conf;
struct ieee80211_channel *channel = conf->channel;
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
struct iwl_rxon_context *ctx;
unsigned long flags = 0;
int ret = 0;
u16 ch;
int scan_active = 0;
bool ht_changed[NUM_IWL_RXON_CTX] = {};
if (WARN_ON(!priv->cfg->ops->legacy))
return -EOPNOTSUPP;
mutex_lock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n",
channel->hw_value, changed);
if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
scan_active = 1;
IWL_DEBUG_MAC80211(priv, "scan active\n");
}
if (changed & (IEEE80211_CONF_CHANGE_SMPS |
IEEE80211_CONF_CHANGE_CHANNEL)) {
/* mac80211 uses static for non-HT which is what we want */
priv->current_ht_config.smps = conf->smps_mode;
/*
* Recalculate chain counts.
*
* If monitor mode is enabled then mac80211 will
* set up the SM PS mode to OFF if an HT channel is
* configured.
*/
if (priv->cfg->ops->hcmd->set_rxon_chain)
for_each_context(priv, ctx)
priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
}
/* during scanning mac80211 will delay channel setting until
* scan finish with changed = 0
*/
if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
if (scan_active)
goto set_ch_out;
ch = channel->hw_value;
ch_info = iwl_get_channel_info(priv, channel->band, ch);
if (!is_channel_valid(ch_info)) {
IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
ret = -EINVAL;
goto set_ch_out;
}
spin_lock_irqsave(&priv->lock, flags);
for_each_context(priv, ctx) {
/* Configure HT40 channels */
if (ctx->ht.enabled != conf_is_ht(conf)) {
ctx->ht.enabled = conf_is_ht(conf);
ht_changed[ctx->ctxid] = true;
}
if (ctx->ht.enabled) {
if (conf_is_ht40_minus(conf)) {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_BELOW;
ctx->ht.is_40mhz = true;
} else if (conf_is_ht40_plus(conf)) {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
ctx->ht.is_40mhz = true;
} else {
ctx->ht.extension_chan_offset =
IEEE80211_HT_PARAM_CHA_SEC_NONE;
ctx->ht.is_40mhz = false;
}
} else
ctx->ht.is_40mhz = false;
/*
* Default to no protection. Protection mode will
* later be set from BSS config in iwl_ht_conf
*/
ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
/* if we are switching from ht to 2.4 clear flags
* from any ht related info since 2.4 does not
* support ht */
if ((le16_to_cpu(ctx->staging.channel) != ch))
ctx->staging.flags = 0;
iwl_set_rxon_channel(priv, channel, ctx);
iwl_set_rxon_ht(priv, ht_conf);
iwl_set_flags_for_band(priv, ctx, channel->band,
ctx->vif);
}
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->cfg->ops->legacy->update_bcast_stations)
ret = priv->cfg->ops->legacy->update_bcast_stations(priv);
set_ch_out:
/* The list of supported rates and rate mask can be different
* for each band; since the band may have changed, reset
* the rate mask to what mac80211 lists */
iwl_set_rate(priv);
}
if (changed & (IEEE80211_CONF_CHANGE_PS |
IEEE80211_CONF_CHANGE_IDLE)) {
ret = iwl_power_update_mode(priv, false);
if (ret)
IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
priv->tx_power_user_lmt, conf->power_level);
iwl_set_tx_power(priv, conf->power_level, false);
}
if (!iwl_is_ready(priv)) {
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
goto out;
}
if (scan_active)
goto out;
for_each_context(priv, ctx) {
if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)))
iwlcore_commit_rxon(priv, ctx);
else
IWL_DEBUG_INFO(priv,
"Not re-sending same RXON configuration.\n");
if (ht_changed[ctx->ctxid])
iwl_update_qos(priv, ctx);
}
out:
IWL_DEBUG_MAC80211(priv, "leave\n");
mutex_unlock(&priv->mutex);
return ret;
}
EXPORT_SYMBOL(iwl_legacy_mac_config);
void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw)
{
struct iwl_priv *priv = hw->priv;
unsigned long flags;
/* IBSS can only be the IWL_RXON_CTX_BSS context */
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
if (WARN_ON(!priv->cfg->ops->legacy))
return;
mutex_lock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "enter\n");
spin_lock_irqsave(&priv->lock, flags);
memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config));
spin_unlock_irqrestore(&priv->lock, flags);
spin_lock_irqsave(&priv->lock, flags);
/* new association get rid of ibss beacon skb */
if (priv->beacon_skb)
dev_kfree_skb(priv->beacon_skb);
priv->beacon_skb = NULL;
priv->timestamp = 0;
spin_unlock_irqrestore(&priv->lock, flags);
iwl_scan_cancel_timeout(priv, 100);
if (!iwl_is_ready_rf(priv)) {
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
mutex_unlock(&priv->mutex);
return;
}
/* we are restarting association process
* clear RXON_FILTER_ASSOC_MSK bit
*/
ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwlcore_commit_rxon(priv, ctx);
iwl_set_rate(priv);
mutex_unlock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "leave\n");
}
EXPORT_SYMBOL(iwl_legacy_mac_reset_tsf);
static void iwl_ht_conf(struct iwl_priv *priv,
struct ieee80211_vif *vif)
{
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
struct ieee80211_sta *sta;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
IWL_DEBUG_ASSOC(priv, "enter:\n");
if (!ctx->ht.enabled)
return;
ctx->ht.protection =
bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
ctx->ht.non_gf_sta_present =
!!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
ht_conf->single_chain_sufficient = false;
switch (vif->type) {
case NL80211_IFTYPE_STATION:
rcu_read_lock();
sta = ieee80211_find_sta(vif, bss_conf->bssid);
if (sta) {
struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
int maxstreams;
maxstreams = (ht_cap->mcs.tx_params &
IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
maxstreams += 1;
if ((ht_cap->mcs.rx_mask[1] == 0) &&
(ht_cap->mcs.rx_mask[2] == 0))
ht_conf->single_chain_sufficient = true;
if (maxstreams <= 1)
ht_conf->single_chain_sufficient = true;
} else {
/*
* If at all, this can only happen through a race
* when the AP disconnects us while we're still
* setting up the connection, in that case mac80211
* will soon tell us about that.
*/
ht_conf->single_chain_sufficient = true;
}
rcu_read_unlock();
break;
case NL80211_IFTYPE_ADHOC:
ht_conf->single_chain_sufficient = true;
break;
default:
break;
}
IWL_DEBUG_ASSOC(priv, "leave\n");
}
static inline void iwl_set_no_assoc(struct iwl_priv *priv,
struct ieee80211_vif *vif)
{
struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
/*
* inform the ucode that there is no longer an
* association and that no more packets should be
* sent
*/
ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
ctx->staging.assoc_id = 0;
iwlcore_commit_rxon(priv, ctx);
}
static void iwlcore_beacon_update(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct iwl_priv *priv = hw->priv;
unsigned long flags;
__le64 timestamp;
struct sk_buff *skb = ieee80211_beacon_get(hw, vif);
if (!skb)
return;
IWL_DEBUG_MAC80211(priv, "enter\n");
lockdep_assert_held(&priv->mutex);
if (!priv->beacon_ctx) {
IWL_ERR(priv, "update beacon but no beacon context!\n");
dev_kfree_skb(skb);
return;
}
spin_lock_irqsave(&priv->lock, flags);
if (priv->beacon_skb)
dev_kfree_skb(priv->beacon_skb);
priv->beacon_skb = skb;
timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
priv->timestamp = le64_to_cpu(timestamp);
IWL_DEBUG_MAC80211(priv, "leave\n");
spin_unlock_irqrestore(&priv->lock, flags);
if (!iwl_is_ready_rf(priv)) {
IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
return;
}
priv->cfg->ops->legacy->post_associate(priv);
}
void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changes)
{
struct iwl_priv *priv = hw->priv;
struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
int ret;
if (WARN_ON(!priv->cfg->ops->legacy))
return;
IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
if (!iwl_is_alive(priv))
return;
mutex_lock(&priv->mutex);
if (changes & BSS_CHANGED_QOS) {
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
ctx->qos_data.qos_active = bss_conf->qos;
iwl_update_qos(priv, ctx);
spin_unlock_irqrestore(&priv->lock, flags);
}
if (changes & BSS_CHANGED_BEACON_ENABLED) {
/*
* the add_interface code must make sure we only ever
* have a single interface that could be beaconing at
* any time.
*/
if (vif->bss_conf.enable_beacon)
priv->beacon_ctx = ctx;
else
priv->beacon_ctx = NULL;
}
if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_AP) {
dev_kfree_skb(priv->beacon_skb);
priv->beacon_skb = ieee80211_beacon_get(hw, vif);
}
if (changes & BSS_CHANGED_BEACON_INT && vif->type == NL80211_IFTYPE_AP)
iwl_send_rxon_timing(priv, ctx);
if (changes & BSS_CHANGED_BSSID) {
IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid);
/*
* If there is currently a HW scan going on in the
* background then we need to cancel it else the RXON
* below/in post_associate will fail.
*/
if (iwl_scan_cancel_timeout(priv, 100)) {
IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
mutex_unlock(&priv->mutex);
return;
}
/* mac80211 only sets assoc when in STATION mode */
if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) {
memcpy(ctx->staging.bssid_addr,
bss_conf->bssid, ETH_ALEN);
/* currently needed in a few places */
memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
} else {
ctx->staging.filter_flags &=
~RXON_FILTER_ASSOC_MSK;
}
}
/*
* This needs to be after setting the BSSID in case
* mac80211 decides to do both changes at once because
* it will invoke post_associate.
*/
if (vif->type == NL80211_IFTYPE_ADHOC && changes & BSS_CHANGED_BEACON)
iwlcore_beacon_update(hw, vif);
if (changes & BSS_CHANGED_ERP_PREAMBLE) {
IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
bss_conf->use_short_preamble);
if (bss_conf->use_short_preamble)
ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
else
ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
}
if (changes & BSS_CHANGED_ERP_CTS_PROT) {
IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot);
if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
else
ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
if (bss_conf->use_cts_prot)
ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
else
ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
}
if (changes & BSS_CHANGED_BASIC_RATES) {
/* XXX use this information
*
* To do that, remove code from iwl_set_rate() and put something
* like this here:
*
if (A-band)
ctx->staging.ofdm_basic_rates =
bss_conf->basic_rates;
else
ctx->staging.ofdm_basic_rates =
bss_conf->basic_rates >> 4;
ctx->staging.cck_basic_rates =
bss_conf->basic_rates & 0xF;
*/
}
if (changes & BSS_CHANGED_HT) {
iwl_ht_conf(priv, vif);
if (priv->cfg->ops->hcmd->set_rxon_chain)
priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
}
if (changes & BSS_CHANGED_ASSOC) {
IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
if (bss_conf->assoc) {
priv->timestamp = bss_conf->timestamp;
if (!iwl_is_rfkill(priv))
priv->cfg->ops->legacy->post_associate(priv);
} else
iwl_set_no_assoc(priv, vif);
}
if (changes && iwl_is_associated_ctx(ctx) && bss_conf->aid) {
IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n",
changes);
ret = iwl_send_rxon_assoc(priv, ctx);
if (!ret) {
/* Sync active_rxon with latest change. */
memcpy((void *)&ctx->active,
&ctx->staging,
sizeof(struct iwl_rxon_cmd));
}
}
if (changes & BSS_CHANGED_BEACON_ENABLED) {
if (vif->bss_conf.enable_beacon) {
memcpy(ctx->staging.bssid_addr,
bss_conf->bssid, ETH_ALEN);
memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
priv->cfg->ops->legacy->config_ap(priv);
} else
iwl_set_no_assoc(priv, vif);
}
if (changes & BSS_CHANGED_IBSS) {
ret = priv->cfg->ops->legacy->manage_ibss_station(priv, vif,
bss_conf->ibss_joined);
if (ret)
IWL_ERR(priv, "failed to %s IBSS station %pM\n",
bss_conf->ibss_joined ? "add" : "remove",
bss_conf->bssid);
}
mutex_unlock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "leave\n");
}
EXPORT_SYMBOL(iwl_legacy_mac_bss_info_changed);
irqreturn_t iwl_isr_legacy(int irq, void *data)
{
struct iwl_priv *priv = data;
u32 inta, inta_mask;
u32 inta_fh;
unsigned long flags;
if (!priv)
return IRQ_NONE;
spin_lock_irqsave(&priv->lock, flags);
/* Disable (but don't clear!) interrupts here to avoid
* back-to-back ISRs and sporadic interrupts from our NIC.
* If we have something to service, the tasklet will re-enable ints.
* If we *don't* have something, we'll re-enable before leaving here. */
inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
iwl_write32(priv, CSR_INT_MASK, 0x00000000);
/* Discover which interrupts are active/pending */
inta = iwl_read32(priv, CSR_INT);
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
/* Ignore interrupt if there's nothing in NIC to service.
* This may be due to IRQ shared with another device,
* or due to sporadic interrupts thrown from our NIC. */
if (!inta && !inta_fh) {
IWL_DEBUG_ISR(priv,
"Ignore interrupt, inta == 0, inta_fh == 0\n");
goto none;
}
if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
/* Hardware disappeared. It might have already raised
* an interrupt */
IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
goto unplugged;
}
IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
inta, inta_mask, inta_fh);
inta &= ~CSR_INT_BIT_SCD;
/* iwl_irq_tasklet() will service interrupts and re-enable them */
if (likely(inta || inta_fh))
tasklet_schedule(&priv->irq_tasklet);
unplugged:
spin_unlock_irqrestore(&priv->lock, flags);
return IRQ_HANDLED;
none:
/* re-enable interrupts here since we don't have anything to service. */
/* only Re-enable if disabled by irq */
if (test_bit(STATUS_INT_ENABLED, &priv->status))
iwl_enable_interrupts(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return IRQ_NONE;
}
EXPORT_SYMBOL(iwl_isr_legacy);
/*
* iwl_legacy_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
* function.
*/
void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
struct ieee80211_tx_info *info,
__le16 fc, __le32 *tx_flags)
{
if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
*tx_flags |= TX_CMD_FLG_RTS_MSK;
*tx_flags &= ~TX_CMD_FLG_CTS_MSK;
*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
if (!ieee80211_is_mgmt(fc))
return;
switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
case cpu_to_le16(IEEE80211_STYPE_AUTH):
case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
*tx_flags |= TX_CMD_FLG_CTS_MSK;
break;
}
} else if (info->control.rates[0].flags &
IEEE80211_TX_RC_USE_CTS_PROTECT) {
*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
*tx_flags |= TX_CMD_FLG_CTS_MSK;
*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
}
}
EXPORT_SYMBOL(iwl_legacy_tx_cmd_protection);

3
drivers/net/wireless/iwlwifi/iwl-power.c
View File

@ -425,7 +425,6 @@ int iwl_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd,
return ret;
}
EXPORT_SYMBOL(iwl_power_set_mode);
int iwl_power_update_mode(struct iwl_priv *priv, bool force)
{
@ -434,7 +433,6 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
iwl_power_build_cmd(priv, &cmd);
return iwl_power_set_mode(priv, &cmd, force);
}
EXPORT_SYMBOL(iwl_power_update_mode);
/* initialize to default */
void iwl_power_initialize(struct iwl_priv *priv)
@ -448,4 +446,3 @@ void iwl_power_initialize(struct iwl_priv *priv)
memset(&priv->power_data.sleep_cmd, 0,
sizeof(priv->power_data.sleep_cmd));
}
EXPORT_SYMBOL(iwl_power_initialize);

6
drivers/net/wireless/iwlwifi/iwl-rx.c
View File

@ -118,7 +118,6 @@ int iwl_rx_queue_space(const struct iwl_rx_queue *q)
s = 0;
return s;
}
EXPORT_SYMBOL(iwl_rx_queue_space);
/**
* iwl_rx_queue_update_write_ptr - Update the write pointer for the RX queue
@ -170,7 +169,6 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q
exit_unlock:
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(iwl_rx_queue_update_write_ptr);
int iwl_rx_queue_alloc(struct iwl_priv *priv)
{
@ -211,7 +209,6 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv)
err_bd:
return -ENOMEM;
}
EXPORT_SYMBOL(iwl_rx_queue_alloc);
void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
@ -229,7 +226,6 @@ void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
memcpy(&priv->measure_report, report, sizeof(*report));
priv->measurement_status |= MEASUREMENT_READY;
}
EXPORT_SYMBOL(iwl_rx_spectrum_measure_notif);
void iwl_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
@ -249,7 +245,6 @@ void iwl_recover_from_statistics(struct iwl_priv *priv,
!priv->cfg->ops->lib->check_plcp_health(priv, pkt))
iwl_force_reset(priv, IWL_RF_RESET, false);
}
EXPORT_SYMBOL(iwl_recover_from_statistics);
/*
* returns non-zero if packet should be dropped
@ -302,4 +297,3 @@ int iwl_set_decrypted_flag(struct iwl_priv *priv,
}
return 0;
}
EXPORT_SYMBOL(iwl_set_decrypted_flag);

10
drivers/net/wireless/iwlwifi/iwl-scan.c
View File

@ -155,7 +155,6 @@ int iwl_scan_cancel(struct iwl_priv *priv)
queue_work(priv->workqueue, &priv->abort_scan);
return 0;
}
EXPORT_SYMBOL(iwl_scan_cancel);
/**
* iwl_scan_cancel_timeout - Cancel any currently executing HW scan
@ -180,7 +179,6 @@ int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
return test_bit(STATUS_SCAN_HW, &priv->status);
}
EXPORT_SYMBOL(iwl_scan_cancel_timeout);
/* Service response to REPLY_SCAN_CMD (0x80) */
static void iwl_rx_reply_scan(struct iwl_priv *priv,
@ -288,7 +286,6 @@ void iwl_setup_rx_scan_handlers(struct iwl_priv *priv)
priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
iwl_rx_scan_complete_notif;
}
EXPORT_SYMBOL(iwl_setup_rx_scan_handlers);
inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
enum ieee80211_band band,
@ -301,7 +298,6 @@ inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
return IWL_ACTIVE_DWELL_TIME_24 +
IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
}
EXPORT_SYMBOL(iwl_get_active_dwell_time);
u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
enum ieee80211_band band,
@ -333,7 +329,6 @@ u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
return passive;
}
EXPORT_SYMBOL(iwl_get_passive_dwell_time);
void iwl_init_scan_params(struct iwl_priv *priv)
{
@ -343,7 +338,6 @@ void iwl_init_scan_params(struct iwl_priv *priv)
if (!priv->scan_tx_ant[IEEE80211_BAND_2GHZ])
priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
}
EXPORT_SYMBOL(iwl_init_scan_params);
static int __must_check iwl_scan_initiate(struct iwl_priv *priv,
struct ieee80211_vif *vif,
@ -439,7 +433,6 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
return ret;
}
EXPORT_SYMBOL(iwl_mac_hw_scan);
/*
* internal short scan, this function should only been called while associated.
@ -536,7 +529,6 @@ u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
return (u16)len;
}
EXPORT_SYMBOL(iwl_fill_probe_req);
static void iwl_bg_abort_scan(struct work_struct *work)
{
@ -621,7 +613,6 @@ void iwl_setup_scan_deferred_work(struct iwl_priv *priv)
INIT_WORK(&priv->start_internal_scan, iwl_bg_start_internal_scan);
INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
}
EXPORT_SYMBOL(iwl_setup_scan_deferred_work);
void iwl_cancel_scan_deferred_work(struct iwl_priv *priv)
{
@ -635,4 +626,3 @@ void iwl_cancel_scan_deferred_work(struct iwl_priv *priv)
mutex_unlock(&priv->mutex);
}
}
EXPORT_SYMBOL(iwl_cancel_scan_deferred_work);

11
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -169,7 +169,6 @@ int iwl_send_add_sta(struct iwl_priv *priv,
return ret;
}
EXPORT_SYMBOL(iwl_send_add_sta);
static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
struct ieee80211_sta *sta,
@ -316,7 +315,6 @@ u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
return sta_id;
}
EXPORT_SYMBOL_GPL(iwl_prep_station);
#define STA_WAIT_TIMEOUT (HZ/2)
@ -379,7 +377,6 @@ int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
*sta_id_r = sta_id;
return ret;
}
EXPORT_SYMBOL(iwl_add_station_common);
/**
* iwl_sta_ucode_deactivate - deactivate ucode status for a station
@ -513,7 +510,6 @@ int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
spin_unlock_irqrestore(&priv->sta_lock, flags);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(iwl_remove_station);
/**
* iwl_clear_ucode_stations - clear ucode station table bits
@ -548,7 +544,6 @@ void iwl_clear_ucode_stations(struct iwl_priv *priv,
if (!cleared)
IWL_DEBUG_INFO(priv, "No active stations found to be cleared\n");
}
EXPORT_SYMBOL(iwl_clear_ucode_stations);
/**
* iwl_restore_stations() - Restore driver known stations to device
@ -625,7 +620,6 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
else
IWL_DEBUG_INFO(priv, "Restoring all known stations .... complete.\n");
}
EXPORT_SYMBOL(iwl_restore_stations);
void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
@ -668,7 +662,6 @@ void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
priv->stations[sta_id].sta.sta.addr, ret);
iwl_send_lq_cmd(priv, ctx, &lq, CMD_SYNC, true);
}
EXPORT_SYMBOL(iwl_reprogram_ap_sta);
int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
{
@ -680,7 +673,6 @@ int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
return WEP_INVALID_OFFSET;
}
EXPORT_SYMBOL(iwl_get_free_ucode_key_index);
void iwl_dealloc_bcast_stations(struct iwl_priv *priv)
{
@ -700,7 +692,6 @@ void iwl_dealloc_bcast_stations(struct iwl_priv *priv)
}
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
EXPORT_SYMBOL_GPL(iwl_dealloc_bcast_stations);
#ifdef CONFIG_IWLWIFI_DEBUG
static void iwl_dump_lq_cmd(struct iwl_priv *priv,
@ -810,7 +801,6 @@ int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
}
return ret;
}
EXPORT_SYMBOL(iwl_send_lq_cmd);
int iwl_mac_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
@ -832,4 +822,3 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw,
mutex_unlock(&priv->mutex);
return ret;
}
EXPORT_SYMBOL(iwl_mac_sta_remove);

7
drivers/net/wireless/iwlwifi/iwl-tx.c
View File

@ -84,7 +84,6 @@ void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq)
}
txq->need_update = 0;
}
EXPORT_SYMBOL(iwl_txq_update_write_ptr);
/**
* iwl_tx_queue_free - Deallocate DMA queue.
@ -131,7 +130,6 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
/* 0-fill queue descriptor structure */
memset(txq, 0, sizeof(*txq));
}
EXPORT_SYMBOL(iwl_tx_queue_free);
/**
* iwl_cmd_queue_free - Deallocate DMA queue.
@ -193,7 +191,6 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
/* 0-fill queue descriptor structure */
memset(txq, 0, sizeof(*txq));
}
EXPORT_SYMBOL(iwl_cmd_queue_free);
/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
* DMA services
@ -233,7 +230,6 @@ int iwl_queue_space(const struct iwl_queue *q)
s = 0;
return s;
}
EXPORT_SYMBOL(iwl_queue_space);
/**
@ -384,7 +380,6 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
return -ENOMEM;
}
EXPORT_SYMBOL(iwl_tx_queue_init);
void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id)
@ -404,7 +399,6 @@ void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
/* Tell device where to find queue */
priv->cfg->ops->lib->txq_init(priv, txq);
}
EXPORT_SYMBOL(iwl_tx_queue_reset);
/*************** HOST COMMAND QUEUE FUNCTIONS *****/
@ -641,4 +635,3 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
}
meta->flags = 0;
}
EXPORT_SYMBOL(iwl_tx_cmd_complete);