mirror of https://gitee.com/openkylin/linux.git
432 lines
10 KiB
C
432 lines
10 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright(c) 2003 - 2009 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
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifdef CONFIG_IWLWIFI_LEDS
|
|
|
|
#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-3945.h"
|
|
#include "iwl-core.h"
|
|
#include "iwl-dev.h"
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
static const char *led_type_str[] = {
|
|
__stringify(IWL_LED_TRG_TX),
|
|
__stringify(IWL_LED_TRG_RX),
|
|
__stringify(IWL_LED_TRG_ASSOC),
|
|
__stringify(IWL_LED_TRG_RADIO),
|
|
NULL
|
|
};
|
|
#endif /* CONFIG_IWLWIFI_DEBUG */
|
|
|
|
static const struct {
|
|
u16 brightness;
|
|
u8 on_time;
|
|
u8 off_time;
|
|
} blink_tbl[] =
|
|
{
|
|
{300, 25, 25},
|
|
{200, 40, 40},
|
|
{100, 55, 55},
|
|
{70, 65, 65},
|
|
{50, 75, 75},
|
|
{20, 85, 85},
|
|
{15, 95, 95 },
|
|
{10, 110, 110},
|
|
{5, 130, 130},
|
|
{0, 167, 167},
|
|
/* SOLID_ON */
|
|
{-1, IWL_LED_SOLID, 0}
|
|
};
|
|
|
|
#define IWL_1MB_RATE (128 * 1024)
|
|
#define IWL_LED_THRESHOLD (16)
|
|
#define IWL_MAX_BLINK_TBL (ARRAY_SIZE(blink_tbl) - 1) /*Exclude Solid on*/
|
|
#define IWL_SOLID_BLINK_IDX (ARRAY_SIZE(blink_tbl) - 1)
|
|
|
|
static int iwl3945_led_cmd_callback(struct iwl_priv *priv,
|
|
struct iwl_cmd *cmd,
|
|
struct sk_buff *skb)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static inline int iwl3945_brightness_to_idx(enum led_brightness brightness)
|
|
{
|
|
return fls(0x000000FF & (u32)brightness);
|
|
}
|
|
|
|
/* Send led command */
|
|
static int iwl_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,
|
|
.meta.flags = CMD_ASYNC,
|
|
.meta.u.callback = iwl3945_led_cmd_callback,
|
|
};
|
|
|
|
return iwl_send_cmd(priv, &cmd);
|
|
}
|
|
|
|
|
|
|
|
/* Set led on command */
|
|
static int iwl3945_led_pattern(struct iwl_priv *priv, int led_id,
|
|
unsigned int idx)
|
|
{
|
|
struct iwl_led_cmd led_cmd = {
|
|
.id = led_id,
|
|
.interval = IWL_DEF_LED_INTRVL
|
|
};
|
|
|
|
BUG_ON(idx > IWL_MAX_BLINK_TBL);
|
|
|
|
led_cmd.on = blink_tbl[idx].on_time;
|
|
led_cmd.off = blink_tbl[idx].off_time;
|
|
|
|
return iwl_send_led_cmd(priv, &led_cmd);
|
|
}
|
|
|
|
|
|
/* Set led on command */
|
|
static int iwl3945_led_on(struct iwl_priv *priv, int led_id)
|
|
{
|
|
struct iwl_led_cmd led_cmd = {
|
|
.id = led_id,
|
|
.on = IWL_LED_SOLID,
|
|
.off = 0,
|
|
.interval = IWL_DEF_LED_INTRVL
|
|
};
|
|
return iwl_send_led_cmd(priv, &led_cmd);
|
|
}
|
|
|
|
/* Set led off command */
|
|
static int iwl3945_led_off(struct iwl_priv *priv, int led_id)
|
|
{
|
|
struct iwl_led_cmd led_cmd = {
|
|
.id = led_id,
|
|
.on = 0,
|
|
.off = 0,
|
|
.interval = IWL_DEF_LED_INTRVL
|
|
};
|
|
IWL_DEBUG_LED(priv, "led off %d\n", led_id);
|
|
return iwl_send_led_cmd(priv, &led_cmd);
|
|
}
|
|
|
|
/*
|
|
* Set led on in case of association
|
|
* */
|
|
static int iwl3945_led_associate(struct iwl_priv *priv, int led_id)
|
|
{
|
|
IWL_DEBUG_LED(priv, "Associated\n");
|
|
|
|
priv->allow_blinking = 1;
|
|
return iwl3945_led_on(priv, led_id);
|
|
}
|
|
/* Set Led off in case of disassociation */
|
|
static int iwl3945_led_disassociate(struct iwl_priv *priv, int led_id)
|
|
{
|
|
IWL_DEBUG_LED(priv, "Disassociated\n");
|
|
|
|
priv->allow_blinking = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* brightness call back function for Tx/Rx LED
|
|
*/
|
|
static int iwl3945_led_associated(struct iwl_priv *priv, int led_id)
|
|
{
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
|
|
!test_bit(STATUS_READY, &priv->status))
|
|
return 0;
|
|
|
|
|
|
/* start counting Tx/Rx bytes */
|
|
if (!priv->last_blink_time && priv->allow_blinking)
|
|
priv->last_blink_time = jiffies;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* brightness call back for association and radio
|
|
*/
|
|
static void iwl3945_led_brightness_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
struct iwl_led *led = container_of(led_cdev,
|
|
struct iwl_led, led_dev);
|
|
struct iwl_priv *priv = led->priv;
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
IWL_DEBUG_LED(priv, "Led type = %s brightness = %d\n",
|
|
led_type_str[led->type], brightness);
|
|
|
|
switch (brightness) {
|
|
case LED_FULL:
|
|
if (led->led_on)
|
|
led->led_on(priv, IWL_LED_LINK);
|
|
break;
|
|
case LED_OFF:
|
|
if (led->led_off)
|
|
led->led_off(priv, IWL_LED_LINK);
|
|
break;
|
|
default:
|
|
if (led->led_pattern) {
|
|
int idx = iwl3945_brightness_to_idx(brightness);
|
|
led->led_pattern(priv, IWL_LED_LINK, idx);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Register led class with the system
|
|
*/
|
|
static int iwl3945_led_register_led(struct iwl_priv *priv,
|
|
struct iwl_led *led,
|
|
enum led_type type, u8 set_led,
|
|
char *trigger)
|
|
{
|
|
struct device *device = wiphy_dev(priv->hw->wiphy);
|
|
int ret;
|
|
|
|
led->led_dev.name = led->name;
|
|
led->led_dev.brightness_set = iwl3945_led_brightness_set;
|
|
led->led_dev.default_trigger = trigger;
|
|
|
|
led->priv = priv;
|
|
led->type = type;
|
|
|
|
ret = led_classdev_register(device, &led->led_dev);
|
|
if (ret) {
|
|
IWL_ERR(priv, "Error: failed to register led handler.\n");
|
|
return ret;
|
|
}
|
|
|
|
led->registered = 1;
|
|
|
|
if (set_led && led->led_on)
|
|
led->led_on(priv, IWL_LED_LINK);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* calculate blink rate according to last 2 sec Tx/Rx activities
|
|
*/
|
|
static inline u8 get_blink_rate(struct iwl_priv *priv)
|
|
{
|
|
int index;
|
|
s64 tpt = priv->rxtxpackets;
|
|
|
|
if (tpt < 0)
|
|
tpt = -tpt;
|
|
|
|
IWL_DEBUG_LED(priv, "tpt %lld \n", (long long)tpt);
|
|
|
|
if (!priv->allow_blinking)
|
|
index = IWL_MAX_BLINK_TBL;
|
|
else
|
|
for (index = 0; index < IWL_MAX_BLINK_TBL; index++)
|
|
if (tpt > (blink_tbl[index].brightness * IWL_1MB_RATE))
|
|
break;
|
|
|
|
IWL_DEBUG_LED(priv, "LED BLINK IDX=%d\n", index);
|
|
return index;
|
|
}
|
|
|
|
/*
|
|
* this function called from handler. Since setting Led command can
|
|
* happen very frequent we postpone led command to be called from
|
|
* REPLY handler so we know ucode is up
|
|
*/
|
|
void iwl3945_led_background(struct iwl_priv *priv)
|
|
{
|
|
u8 blink_idx;
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
|
|
priv->last_blink_time = 0;
|
|
return;
|
|
}
|
|
if (iwl_is_rfkill(priv)) {
|
|
priv->last_blink_time = 0;
|
|
return;
|
|
}
|
|
|
|
if (!priv->allow_blinking) {
|
|
priv->last_blink_time = 0;
|
|
if (priv->last_blink_rate != IWL_SOLID_BLINK_IDX) {
|
|
priv->last_blink_rate = IWL_SOLID_BLINK_IDX;
|
|
iwl3945_led_pattern(priv, IWL_LED_LINK,
|
|
IWL_SOLID_BLINK_IDX);
|
|
}
|
|
return;
|
|
}
|
|
if (!priv->last_blink_time ||
|
|
!time_after(jiffies, priv->last_blink_time +
|
|
msecs_to_jiffies(1000)))
|
|
return;
|
|
|
|
blink_idx = get_blink_rate(priv);
|
|
|
|
/* call only if blink rate change */
|
|
if (blink_idx != priv->last_blink_rate)
|
|
iwl3945_led_pattern(priv, IWL_LED_LINK, blink_idx);
|
|
|
|
priv->last_blink_time = jiffies;
|
|
priv->last_blink_rate = blink_idx;
|
|
priv->rxtxpackets = 0;
|
|
}
|
|
|
|
|
|
/* Register all led handler */
|
|
int iwl3945_led_register(struct iwl_priv *priv)
|
|
{
|
|
char *trigger;
|
|
int ret;
|
|
|
|
priv->last_blink_rate = 0;
|
|
priv->rxtxpackets = 0;
|
|
priv->led_tpt = 0;
|
|
priv->last_blink_time = 0;
|
|
priv->allow_blinking = 0;
|
|
|
|
trigger = ieee80211_get_radio_led_name(priv->hw);
|
|
snprintf(priv->led[IWL_LED_TRG_RADIO].name,
|
|
sizeof(priv->led[IWL_LED_TRG_RADIO].name), "iwl-%s::radio",
|
|
wiphy_name(priv->hw->wiphy));
|
|
|
|
priv->led[IWL_LED_TRG_RADIO].led_on = iwl3945_led_on;
|
|
priv->led[IWL_LED_TRG_RADIO].led_off = iwl3945_led_off;
|
|
priv->led[IWL_LED_TRG_RADIO].led_pattern = NULL;
|
|
|
|
ret = iwl3945_led_register_led(priv,
|
|
&priv->led[IWL_LED_TRG_RADIO],
|
|
IWL_LED_TRG_RADIO, 1, trigger);
|
|
|
|
if (ret)
|
|
goto exit_fail;
|
|
|
|
trigger = ieee80211_get_assoc_led_name(priv->hw);
|
|
snprintf(priv->led[IWL_LED_TRG_ASSOC].name,
|
|
sizeof(priv->led[IWL_LED_TRG_ASSOC].name), "iwl-%s::assoc",
|
|
wiphy_name(priv->hw->wiphy));
|
|
|
|
ret = iwl3945_led_register_led(priv,
|
|
&priv->led[IWL_LED_TRG_ASSOC],
|
|
IWL_LED_TRG_ASSOC, 0, trigger);
|
|
|
|
/* for assoc always turn led on */
|
|
priv->led[IWL_LED_TRG_ASSOC].led_on = iwl3945_led_associate;
|
|
priv->led[IWL_LED_TRG_ASSOC].led_off = iwl3945_led_disassociate;
|
|
priv->led[IWL_LED_TRG_ASSOC].led_pattern = NULL;
|
|
|
|
if (ret)
|
|
goto exit_fail;
|
|
|
|
trigger = ieee80211_get_rx_led_name(priv->hw);
|
|
snprintf(priv->led[IWL_LED_TRG_RX].name,
|
|
sizeof(priv->led[IWL_LED_TRG_RX].name), "iwl-%s::RX",
|
|
wiphy_name(priv->hw->wiphy));
|
|
|
|
ret = iwl3945_led_register_led(priv,
|
|
&priv->led[IWL_LED_TRG_RX],
|
|
IWL_LED_TRG_RX, 0, trigger);
|
|
|
|
priv->led[IWL_LED_TRG_RX].led_on = iwl3945_led_associated;
|
|
priv->led[IWL_LED_TRG_RX].led_off = iwl3945_led_associated;
|
|
priv->led[IWL_LED_TRG_RX].led_pattern = iwl3945_led_pattern;
|
|
|
|
if (ret)
|
|
goto exit_fail;
|
|
|
|
trigger = ieee80211_get_tx_led_name(priv->hw);
|
|
snprintf(priv->led[IWL_LED_TRG_TX].name,
|
|
sizeof(priv->led[IWL_LED_TRG_TX].name), "iwl-%s::TX",
|
|
wiphy_name(priv->hw->wiphy));
|
|
|
|
ret = iwl3945_led_register_led(priv,
|
|
&priv->led[IWL_LED_TRG_TX],
|
|
IWL_LED_TRG_TX, 0, trigger);
|
|
|
|
priv->led[IWL_LED_TRG_TX].led_on = iwl3945_led_associated;
|
|
priv->led[IWL_LED_TRG_TX].led_off = iwl3945_led_associated;
|
|
priv->led[IWL_LED_TRG_TX].led_pattern = iwl3945_led_pattern;
|
|
|
|
if (ret)
|
|
goto exit_fail;
|
|
|
|
return 0;
|
|
|
|
exit_fail:
|
|
iwl3945_led_unregister(priv);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/* unregister led class */
|
|
static void iwl3945_led_unregister_led(struct iwl_led *led, u8 set_led)
|
|
{
|
|
if (!led->registered)
|
|
return;
|
|
|
|
led_classdev_unregister(&led->led_dev);
|
|
|
|
if (set_led)
|
|
led->led_dev.brightness_set(&led->led_dev, LED_OFF);
|
|
led->registered = 0;
|
|
}
|
|
|
|
/* Unregister all led handlers */
|
|
void iwl3945_led_unregister(struct iwl_priv *priv)
|
|
{
|
|
iwl3945_led_unregister_led(&priv->led[IWL_LED_TRG_ASSOC], 0);
|
|
iwl3945_led_unregister_led(&priv->led[IWL_LED_TRG_RX], 0);
|
|
iwl3945_led_unregister_led(&priv->led[IWL_LED_TRG_TX], 0);
|
|
iwl3945_led_unregister_led(&priv->led[IWL_LED_TRG_RADIO], 1);
|
|
}
|
|
|
|
#endif
|