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linux/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c

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/*
* PS3 gelic network driver.
*
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* Copyright 2007 Sony Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#undef DEBUG
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/wireless.h>
#include <linux/ieee80211.h>
#include <linux/if_arp.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <net/iw_handler.h>
#include <linux/dma-mapping.h>
#include <net/checksum.h>
#include <asm/firmware.h>
#include <asm/ps3.h>
#include <asm/lv1call.h>
#include "ps3_gelic_net.h"
#include "ps3_gelic_wireless.h"
static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
u8 *essid, size_t essid_len);
static int gelic_wl_try_associate(struct net_device *netdev);
/*
* tables
*/
/* 802.11b/g channel to freq in MHz */
static const int channel_freq[] = {
2412, 2417, 2422, 2427, 2432,
2437, 2442, 2447, 2452, 2457,
2462, 2467, 2472, 2484
};
#define NUM_CHANNELS ARRAY_SIZE(channel_freq)
/* in bps */
static const int bitrate_list[] = {
1000000,
2000000,
5500000,
11000000,
6000000,
9000000,
12000000,
18000000,
24000000,
36000000,
48000000,
54000000
};
#define NUM_BITRATES ARRAY_SIZE(bitrate_list)
/*
* wpa2 support requires the hypervisor version 2.0 or later
*/
static inline int wpa2_capable(void)
{
return 0 <= ps3_compare_firmware_version(2, 0, 0);
}
static inline int precise_ie(void)
{
return 0 <= ps3_compare_firmware_version(2, 2, 0);
}
/*
* post_eurus_cmd helpers
*/
struct eurus_cmd_arg_info {
int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
int post_arg; /* command requires arg1, arg2 at GET_RESULT */
};
static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
[GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
[GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
[GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
[GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
[GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
};
#ifdef DEBUG
static const char *cmdstr(enum gelic_eurus_command ix)
{
switch (ix) {
case GELIC_EURUS_CMD_ASSOC:
return "ASSOC";
case GELIC_EURUS_CMD_DISASSOC:
return "DISASSOC";
case GELIC_EURUS_CMD_START_SCAN:
return "SCAN";
case GELIC_EURUS_CMD_GET_SCAN:
return "GET SCAN";
case GELIC_EURUS_CMD_SET_COMMON_CFG:
return "SET_COMMON_CFG";
case GELIC_EURUS_CMD_GET_COMMON_CFG:
return "GET_COMMON_CFG";
case GELIC_EURUS_CMD_SET_WEP_CFG:
return "SET_WEP_CFG";
case GELIC_EURUS_CMD_GET_WEP_CFG:
return "GET_WEP_CFG";
case GELIC_EURUS_CMD_SET_WPA_CFG:
return "SET_WPA_CFG";
case GELIC_EURUS_CMD_GET_WPA_CFG:
return "GET_WPA_CFG";
case GELIC_EURUS_CMD_GET_RSSI_CFG:
return "GET_RSSI";
default:
break;
}
return "";
};
#else
static inline const char *cmdstr(enum gelic_eurus_command ix)
{
return "";
}
#endif
/* synchronously do eurus commands */
static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
{
struct gelic_eurus_cmd *cmd;
struct gelic_card *card;
struct gelic_wl_info *wl;
u64 arg1, arg2;
pr_debug("%s: <-\n", __func__);
cmd = container_of(work, struct gelic_eurus_cmd, work);
BUG_ON(cmd_info[cmd->cmd].pre_arg &&
cmd_info[cmd->cmd].post_arg);
wl = cmd->wl;
card = port_to_card(wl_port(wl));
if (cmd_info[cmd->cmd].pre_arg) {
arg1 = (cmd->buffer) ?
ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
0;
arg2 = cmd->buf_size;
} else {
arg1 = 0;
arg2 = 0;
}
init_completion(&wl->cmd_done_intr);
pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
cmd->status = lv1_net_control(bus_id(card), dev_id(card),
GELIC_LV1_POST_WLAN_CMD,
cmd->cmd, arg1, arg2,
&cmd->tag, &cmd->size);
if (cmd->status) {
complete(&cmd->done);
pr_info("%s: cmd issue failed\n", __func__);
return;
}
wait_for_completion(&wl->cmd_done_intr);
if (cmd_info[cmd->cmd].post_arg) {
arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
arg2 = cmd->buf_size;
} else {
arg1 = 0;
arg2 = 0;
}
cmd->status = lv1_net_control(bus_id(card), dev_id(card),
GELIC_LV1_GET_WLAN_CMD_RESULT,
cmd->tag, arg1, arg2,
&cmd->cmd_status, &cmd->size);
#ifdef DEBUG
if (cmd->status || cmd->cmd_status) {
pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
cmd->tag, arg1, arg2);
pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
__func__, cmd->status, cmd->cmd_status, cmd->size);
}
#endif
complete(&cmd->done);
pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
}
static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
unsigned int eurus_cmd,
void *buffer,
unsigned int buf_size)
{
struct gelic_eurus_cmd *cmd;
/* allocate cmd */
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return NULL;
/* initialize members */
cmd->cmd = eurus_cmd;
cmd->buffer = buffer;
cmd->buf_size = buf_size;
cmd->wl = wl;
INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
init_completion(&cmd->done);
queue_work(wl->eurus_cmd_queue, &cmd->work);
/* wait for command completion */
wait_for_completion(&cmd->done);
return cmd;
}
static u32 gelic_wl_get_link(struct net_device *netdev)
{
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
u32 ret;
pr_debug("%s: <-\n", __func__);
mutex_lock(&wl->assoc_stat_lock);
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
ret = 1;
else
ret = 0;
mutex_unlock(&wl->assoc_stat_lock);
pr_debug("%s: ->\n", __func__);
return ret;
}
static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
{
union iwreq_data data;
memset(&data, 0, sizeof(data));
if (bssid)
memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
data.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
&data, NULL);
}
/*
* wireless extension handlers and helpers
*/
/* SIOGIWNAME */
static int gelic_wl_get_name(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *iwreq, char *extra)
{
strcpy(iwreq->name, "IEEE 802.11bg");
return 0;
}
static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
{
struct gelic_card *card = port_to_card(wl_port(wl));
u64 ch_info_raw, tmp;
int status;
if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
status = lv1_net_control(bus_id(card), dev_id(card),
GELIC_LV1_GET_CHANNEL, 0, 0, 0,
&ch_info_raw,
&tmp);
/* some fw versions may return error */
if (status) {
if (status != LV1_NO_ENTRY)
pr_info("%s: available ch unknown\n", __func__);
wl->ch_info = 0x07ff;/* 11 ch */
} else
/* 16 bits of MSB has available channels */
wl->ch_info = ch_info_raw >> 48;
}
}
/* SIOGIWRANGE */
static int gelic_wl_get_range(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *iwreq, char *extra)
{
struct iw_point *point = &iwreq->data;
struct iw_range *range = (struct iw_range *)extra;
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
unsigned int i, chs;
pr_debug("%s: <-\n", __func__);
point->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = 22;
/* available channels and frequencies */
gelic_wl_get_ch_info(wl);
for (i = 0, chs = 0;
i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
if (wl->ch_info & (1 << i)) {
range->freq[chs].i = i + 1;
range->freq[chs].m = channel_freq[i];
range->freq[chs].e = 6;
chs++;
}
range->num_frequency = chs;
range->old_num_frequency = chs;
range->num_channels = chs;
range->old_num_channels = chs;
/* bitrates */
for (i = 0; i < NUM_BITRATES; i++)
range->bitrate[i] = bitrate_list[i];
range->num_bitrates = i;
/* signal levels */
range->max_qual.qual = 100; /* relative value */
range->max_qual.level = 100;
range->avg_qual.qual = 50;
range->avg_qual.level = 50;
range->sensitivity = 0;
/* Event capability */
IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
/* encryption capability */
range->enc_capa = IW_ENC_CAPA_WPA |
IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
IW_ENC_CAPA_4WAY_HANDSHAKE;
if (wpa2_capable())
range->enc_capa |= IW_ENC_CAPA_WPA2;
range->encoding_size[0] = 5; /* 40bit WEP */
range->encoding_size[1] = 13; /* 104bit WEP */
range->encoding_size[2] = 32; /* WPA-PSK */
range->num_encoding_sizes = 3;
range->max_encoding_tokens = GELIC_WEP_KEYS;
/* scan capability */
range->scan_capa = IW_SCAN_CAPA_ESSID;
pr_debug("%s: ->\n", __func__);
return 0;
}
/* SIOC{G,S}IWSCAN */
static int gelic_wl_set_scan(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_scan_req *req;
u8 *essid = NULL;
size_t essid_len = 0;
if (wrqu->data.length == sizeof(struct iw_scan_req) &&
wrqu->data.flags & IW_SCAN_THIS_ESSID) {
req = (struct iw_scan_req*)extra;
essid = req->essid;
essid_len = req->essid_len;
pr_debug("%s: ESSID scan =%s\n", __func__, essid);
}
return gelic_wl_start_scan(wl, 1, essid, essid_len);
}
#define OUI_LEN 3
static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
/*
* synthesize WPA/RSN IE data
* See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
* for the format
*/
static size_t gelic_wl_synthesize_ie(u8 *buf,
struct gelic_eurus_scan_info *scan)
{
const u8 *oui_header;
u8 *start = buf;
int rsn;
int ccmp;
pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
case GELIC_EURUS_SCAN_SEC_WPA:
rsn = 0;
break;
case GELIC_EURUS_SCAN_SEC_WPA2:
rsn = 1;
break;
default:
/* WEP or none. No IE returned */
return 0;
}
switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
ccmp = 0;
break;
case GELIC_EURUS_SCAN_SEC_WPA_AES:
ccmp = 1;
break;
default:
if (rsn) {
ccmp = 1;
pr_info("%s: no cipher info. defaulted to CCMP\n",
__func__);
} else {
ccmp = 0;
pr_info("%s: no cipher info. defaulted to TKIP\n",
__func__);
}
}
if (rsn)
oui_header = rsn_oui;
else
oui_header = wpa_oui;
/* element id */
if (rsn)
*buf++ = WLAN_EID_RSN;
else
*buf++ = WLAN_EID_VENDOR_SPECIFIC;
/* length filed; set later */
buf++;
/* wpa special header */
if (!rsn) {
memcpy(buf, wpa_oui, OUI_LEN);
buf += OUI_LEN;
*buf++ = 0x01;
}
/* version */
*buf++ = 0x01; /* version 1.0 */
*buf++ = 0x00;
/* group cipher */
memcpy(buf, oui_header, OUI_LEN);
buf += OUI_LEN;
if (ccmp)
*buf++ = 0x04; /* CCMP */
else
*buf++ = 0x02; /* TKIP */
/* pairwise key count always 1 */
*buf++ = 0x01;
*buf++ = 0x00;
/* pairwise key suit */
memcpy(buf, oui_header, OUI_LEN);
buf += OUI_LEN;
if (ccmp)
*buf++ = 0x04; /* CCMP */
else
*buf++ = 0x02; /* TKIP */
/* AKM count is 1 */
*buf++ = 0x01;
*buf++ = 0x00;
/* AKM suite is assumed as PSK*/
memcpy(buf, oui_header, OUI_LEN);
buf += OUI_LEN;
*buf++ = 0x02; /* PSK */
/* RSN capabilities is 0 */
*buf++ = 0x00;
*buf++ = 0x00;
/* set length field */
start[1] = (buf - start - 2);
pr_debug("%s: ->\n", __func__);
return buf - start;
}
struct ie_item {
u8 *data;
u8 len;
};
struct ie_info {
struct ie_item wpa;
struct ie_item rsn;
};
static void gelic_wl_parse_ie(u8 *data, size_t len,
struct ie_info *ie_info)
{
size_t data_left = len;
u8 *pos = data;
u8 item_len;
u8 item_id;
pr_debug("%s: data=%p len=%ld\n", __func__,
data, len);
memset(ie_info, 0, sizeof(struct ie_info));
while (2 <= data_left) {
item_id = *pos++;
item_len = *pos++;
data_left -= 2;
if (data_left < item_len)
break;
switch (item_id) {
case WLAN_EID_VENDOR_SPECIFIC:
if ((OUI_LEN + 1 <= item_len) &&
!memcmp(pos, wpa_oui, OUI_LEN) &&
pos[OUI_LEN] == 0x01) {
ie_info->wpa.data = pos - 2;
ie_info->wpa.len = item_len + 2;
}
break;
case WLAN_EID_RSN:
ie_info->rsn.data = pos - 2;
/* length includes the header */
ie_info->rsn.len = item_len + 2;
break;
default:
pr_debug("%s: ignore %#x,%d\n", __func__,
item_id, item_len);
break;
}
pos += item_len;
data_left -= item_len;
}
pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
ie_info->wpa.data, ie_info->wpa.len,
ie_info->rsn.data, ie_info->rsn.len);
}
/*
* translate the scan informations from hypervisor to a
* independent format
*/
static char *gelic_wl_translate_scan(struct net_device *netdev,
struct iw_request_info *info,
char *ev,
char *stop,
struct gelic_wl_scan_info *network)
{
struct iw_event iwe;
struct gelic_eurus_scan_info *scan = network->hwinfo;
char *tmp;
u8 rate;
unsigned int i, j, len;
u8 buf[64]; /* arbitrary size large enough */
pr_debug("%s: <-\n", __func__);
/* first entry should be AP's mac address */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
/* ESSID */
iwe.cmd = SIOCGIWESSID;
iwe.u.data.flags = 1;
iwe.u.data.length = strnlen(scan->essid, 32);
ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
/* FREQUENCY */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = be16_to_cpu(scan->channel);
iwe.u.freq.e = 0; /* table value in MHz */
iwe.u.freq.i = 0;
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
/* RATES */
iwe.cmd = SIOCGIWRATE;
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
/* to stuff multiple values in one event */
tmp = ev + iwe_stream_lcp_len(info);
/* put them in ascendant order (older is first) */
i = 0;
j = 0;
pr_debug("%s: rates=%d rate=%d\n", __func__,
network->rate_len, network->rate_ext_len);
while (i < network->rate_len) {
if (j < network->rate_ext_len &&
((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
rate = scan->ext_rate[j++] & 0x7f;
else
rate = scan->rate[i++] & 0x7f;
iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
IW_EV_PARAM_LEN);
}
while (j < network->rate_ext_len) {
iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
IW_EV_PARAM_LEN);
}
/* Check if we added any rate */
if (iwe_stream_lcp_len(info) < (tmp - ev))
ev = tmp;
/* ENCODE */
iwe.cmd = SIOCGIWENCODE;
if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
iwe.u.data.length = 0;
ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
/* MODE */
iwe.cmd = SIOCGIWMODE;
if (be16_to_cpu(scan->capability) &
(WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
iwe.u.mode = IW_MODE_MASTER;
else
iwe.u.mode = IW_MODE_ADHOC;
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
}
/* QUAL */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
iwe.u.qual.level = be16_to_cpu(scan->rssi);
iwe.u.qual.qual = be16_to_cpu(scan->rssi);
iwe.u.qual.noise = 0;
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
/* RSN */
memset(&iwe, 0, sizeof(iwe));
if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
/* If wpa[2] capable station, synthesize IE and put it */
len = gelic_wl_synthesize_ie(buf, scan);
if (len) {
iwe.cmd = IWEVGENIE;
iwe.u.data.length = len;
ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
}
} else {
/* this scan info has IE data */
struct ie_info ie_info;
size_t data_len;
data_len = be16_to_cpu(scan->size) - sizeof(*scan);
gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = ie_info.wpa.len;
ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
}
if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
memset(&iwe, 0, sizeof(iwe));
memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = ie_info.rsn.len;
ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
}
}
pr_debug("%s: ->\n", __func__);
return ev;
}
static int gelic_wl_get_scan(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct gelic_wl_scan_info *scan_info;
char *ev = extra;
char *stop = ev + wrqu->data.length;
int ret = 0;
unsigned long this_time = jiffies;
pr_debug("%s: <-\n", __func__);
if (mutex_lock_interruptible(&wl->scan_lock))
return -EAGAIN;
switch (wl->scan_stat) {
case GELIC_WL_SCAN_STAT_SCANNING:
/* If a scan in progress, caller should call me again */
ret = -EAGAIN;
goto out;
case GELIC_WL_SCAN_STAT_INIT:
/* last scan request failed or never issued */
ret = -ENODEV;
goto out;
case GELIC_WL_SCAN_STAT_GOT_LIST:
/* ok, use current list */
break;
}
list_for_each_entry(scan_info, &wl->network_list, list) {
if (wl->scan_age == 0 ||
time_after(scan_info->last_scanned + wl->scan_age,
this_time))
ev = gelic_wl_translate_scan(netdev, info,
ev, stop,
scan_info);
else
pr_debug("%s:entry too old\n", __func__);
if (stop - ev <= IW_EV_ADDR_LEN) {
ret = -E2BIG;
goto out;
}
}
wrqu->data.length = ev - extra;
wrqu->data.flags = 0;
out:
mutex_unlock(&wl->scan_lock);
pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
return ret;
}
#ifdef DEBUG
static void scan_list_dump(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *scan_info;
int i;
i = 0;
list_for_each_entry(scan_info, &wl->network_list, list) {
pr_debug("%s: item %d\n", __func__, i++);
pr_debug("valid=%d eurusindex=%d last=%lx\n",
scan_info->valid, scan_info->eurus_index,
scan_info->last_scanned);
pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
scan_info->rate_len, scan_info->rate_ext_len,
scan_info->essid_len);
/* -- */
pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
pr_debug("essid=%s\n", scan_info->hwinfo->essid);
}
}
#endif
static int gelic_wl_set_auth(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct iw_param *param = &data->param;
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
unsigned long irqflag;
int ret = 0;
pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
spin_lock_irqsave(&wl->lock, irqflag);
switch (param->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
pr_debug("%s: NO WPA selected\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
}
if (param->value & IW_AUTH_WPA_VERSION_WPA) {
pr_debug("%s: WPA version 1 selected\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
}
if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
/*
* As the hypervisor may not tell the cipher
* information of the AP if it is WPA2,
* you will not decide suitable cipher from
* its beacon.
* You should have knowledge about the AP's
* cipher information in other method prior to
* the association.
*/
if (!precise_ie())
pr_info("%s: WPA2 may not work\n", __func__);
if (wpa2_capable()) {
wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
wl->group_cipher_method = GELIC_WL_CIPHER_AES;
wl->pairwise_cipher_method =
GELIC_WL_CIPHER_AES;
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
} else
ret = -EINVAL;
}
break;
case IW_AUTH_CIPHER_PAIRWISE:
if (param->value &
(IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
pr_debug("%s: WEP selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
}
if (param->value & IW_AUTH_CIPHER_TKIP) {
pr_debug("%s: TKIP selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
}
if (param->value & IW_AUTH_CIPHER_CCMP) {
pr_debug("%s: CCMP selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
}
if (param->value & IW_AUTH_CIPHER_NONE) {
pr_debug("%s: no auth selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
}
break;
case IW_AUTH_CIPHER_GROUP:
if (param->value &
(IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
pr_debug("%s: WEP selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
}
if (param->value & IW_AUTH_CIPHER_TKIP) {
pr_debug("%s: TKIP selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
}
if (param->value & IW_AUTH_CIPHER_CCMP) {
pr_debug("%s: CCMP selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_AES;
}
if (param->value & IW_AUTH_CIPHER_NONE) {
pr_debug("%s: no auth selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
}
break;
case IW_AUTH_80211_AUTH_ALG:
if (param->value & IW_AUTH_ALG_SHARED_KEY) {
pr_debug("%s: shared key specified\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_SHARED;
} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
pr_debug("%s: open system specified\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
} else
ret = -EINVAL;
break;
case IW_AUTH_WPA_ENABLED:
if (param->value) {
pr_debug("%s: WPA enabled\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
} else {
pr_debug("%s: WPA disabled\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
}
break;
case IW_AUTH_KEY_MGMT:
if (param->value & IW_AUTH_KEY_MGMT_PSK)
break;
/* intentionally fall through */
default:
ret = -EOPNOTSUPP;
break;
}
if (!ret)
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> %d\n", __func__, ret);
return ret;
}
static int gelic_wl_get_auth(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *iwreq, char *extra)
{
struct iw_param *param = &iwreq->param;
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
unsigned long irqflag;
int ret = 0;
pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
spin_lock_irqsave(&wl->lock, irqflag);
switch (param->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_WPA:
param->value |= IW_AUTH_WPA_VERSION_WPA;
break;
case GELIC_WL_WPA_LEVEL_WPA2:
param->value |= IW_AUTH_WPA_VERSION_WPA2;
break;
default:
param->value |= IW_AUTH_WPA_VERSION_DISABLED;
}
break;
case IW_AUTH_80211_AUTH_ALG:
if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
param->value = IW_AUTH_ALG_SHARED_KEY;
else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
param->value = IW_AUTH_ALG_OPEN_SYSTEM;
break;
case IW_AUTH_WPA_ENABLED:
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_WPA:
case GELIC_WL_WPA_LEVEL_WPA2:
param->value = 1;
break;
default:
param->value = 0;
break;
}
break;
default:
ret = -EOPNOTSUPP;
}
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> %d\n", __func__, ret);
return ret;
}
/* SIOC{S,G}IWESSID */
static int gelic_wl_set_essid(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <- l=%d f=%d\n", __func__,
data->essid.length, data->essid.flags);
if (IW_ESSID_MAX_SIZE < data->essid.length)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (data->essid.flags) {
wl->essid_len = data->essid.length;
memcpy(wl->essid, extra, wl->essid_len);
pr_debug("%s: essid = '%s'\n", __func__, extra);
set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
} else {
pr_debug("%s: ESSID any\n", __func__);
clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
}
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
spin_unlock_irqrestore(&wl->lock, irqflag);
gelic_wl_try_associate(netdev); /* FIXME */
pr_debug("%s: ->\n", __func__);
return 0;
}
static int gelic_wl_get_essid(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <-\n", __func__);
mutex_lock(&wl->assoc_stat_lock);
spin_lock_irqsave(&wl->lock, irqflag);
if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
memcpy(extra, wl->essid, wl->essid_len);
data->essid.length = wl->essid_len;
data->essid.flags = 1;
} else
data->essid.flags = 0;
mutex_unlock(&wl->assoc_stat_lock);
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
return 0;
}
/* SIO{S,G}IWENCODE */
static int gelic_wl_set_encode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
__u16 flags;
unsigned long irqflag;
int key_index, index_specified;
int ret = 0;
pr_debug("%s: <-\n", __func__);
flags = enc->flags & IW_ENCODE_FLAGS;
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: key_index = %d\n", __func__, key_index);
pr_debug("%s: key_len = %d\n", __func__, enc->length);
pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index) {
index_specified = 1;
key_index--;
} else {
index_specified = 0;
key_index = wl->current_key;
}
if (flags & IW_ENCODE_NOKEY) {
/* if just IW_ENCODE_NOKEY, change current key index */
if (!flags && index_specified) {
wl->current_key = key_index;
goto done;
}
if (flags & IW_ENCODE_DISABLED) {
if (!index_specified) {
/* disable encryption */
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
wl->pairwise_cipher_method =
GELIC_WL_CIPHER_NONE;
/* invalidate all key */
wl->key_enabled = 0;
} else
clear_bit(key_index, &wl->key_enabled);
}
if (flags & IW_ENCODE_OPEN)
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
if (flags & IW_ENCODE_RESTRICTED) {
pr_info("%s: shared key mode enabled\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_SHARED;
}
} else {
if (IW_ENCODING_TOKEN_MAX < enc->length) {
ret = -EINVAL;
goto done;
}
wl->key_len[key_index] = enc->length;
memcpy(wl->key[key_index], extra, enc->length);
set_bit(key_index, &wl->key_enabled);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
}
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
done:
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: ->\n", __func__);
return ret;
}
static int gelic_wl_get_encode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
unsigned long irqflag;
unsigned int key_index, index_specified;
int ret = 0;
pr_debug("%s: <-\n", __func__);
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
enc->flags, enc->pointer, enc->length, extra);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index) {
index_specified = 1;
key_index--;
} else {
index_specified = 0;
key_index = wl->current_key;
}
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
switch (wl->auth_method) {
case GELIC_EURUS_AUTH_OPEN:
enc->flags = IW_ENCODE_OPEN;
break;
case GELIC_EURUS_AUTH_SHARED:
enc->flags = IW_ENCODE_RESTRICTED;
break;
}
} else
enc->flags = IW_ENCODE_DISABLED;
if (test_bit(key_index, &wl->key_enabled)) {
if (enc->length < wl->key_len[key_index]) {
ret = -EINVAL;
goto done;
}
enc->length = wl->key_len[key_index];
memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
} else {
enc->length = 0;
enc->flags |= IW_ENCODE_NOKEY;
}
enc->flags |= key_index + 1;
pr_debug("%s: -> flag=%x len=%d\n", __func__,
enc->flags, enc->length);
done:
spin_unlock_irqrestore(&wl->lock, irqflag);
return ret;
}
/* SIOC{S,G}IWAP */
static int gelic_wl_set_ap(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <-\n", __func__);
if (data->ap_addr.sa_family != ARPHRD_ETHER)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (is_valid_ether_addr(data->ap_addr.sa_data)) {
memcpy(wl->bssid, data->ap_addr.sa_data,
ETH_ALEN);
set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
} else {
pr_debug("%s: clear bssid\n", __func__);
clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
eth_zero_addr(wl->bssid);
}
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: ->\n", __func__);
return 0;
}
static int gelic_wl_get_ap(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <-\n", __func__);
mutex_lock(&wl->assoc_stat_lock);
spin_lock_irqsave(&wl->lock, irqflag);
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
data->ap_addr.sa_family = ARPHRD_ETHER;
memcpy(data->ap_addr.sa_data, wl->active_bssid,
ETH_ALEN);
} else
eth_zero_addr(data->ap_addr.sa_data);
spin_unlock_irqrestore(&wl->lock, irqflag);
mutex_unlock(&wl->assoc_stat_lock);
pr_debug("%s: ->\n", __func__);
return 0;
}
/* SIOC{S,G}IWENCODEEXT */
static int gelic_wl_set_encodeext(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
__u16 alg;
__u16 flags;
unsigned long irqflag;
int key_index;
int ret = 0;
pr_debug("%s: <-\n", __func__);
flags = enc->flags & IW_ENCODE_FLAGS;
alg = ext->alg;
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: key_index = %d\n", __func__, key_index);
pr_debug("%s: key_len = %d\n", __func__, enc->length);
pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index)
key_index--;
else
key_index = wl->current_key;
if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
/* reques to change default key index */
pr_debug("%s: request to change default key to %d\n",
__func__, key_index);
wl->current_key = key_index;
goto done;
}
if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
pr_debug("%s: alg disabled\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
} else if (alg == IW_ENCODE_ALG_WEP) {
pr_debug("%s: WEP requested\n", __func__);
if (flags & IW_ENCODE_OPEN) {
pr_debug("%s: open key mode\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
}
if (flags & IW_ENCODE_RESTRICTED) {
pr_debug("%s: shared key mode\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_SHARED;
}
if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
pr_info("%s: key is too long %d\n", __func__,
ext->key_len);
ret = -EINVAL;
goto done;
}
/* OK, update the key */
wl->key_len[key_index] = ext->key_len;
memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
memcpy(wl->key[key_index], ext->key, ext->key_len);
set_bit(key_index, &wl->key_enabled);
/* remember wep info changed */
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
} else if (alg == IW_ENCODE_ALG_PMK) {
if (ext->key_len != WPA_PSK_LEN) {
pr_err("%s: PSK length wrong %d\n", __func__,
ext->key_len);
ret = -EINVAL;
goto done;
}
memset(wl->psk, 0, sizeof(wl->psk));
memcpy(wl->psk, ext->key, ext->key_len);
wl->psk_len = ext->key_len;
wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
/* remember PSK configured */
set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
}
done:
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: ->\n", __func__);
return ret;
}
static int gelic_wl_get_encodeext(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
unsigned long irqflag;
int key_index;
int ret = 0;
int max_key_len;
pr_debug("%s: <-\n", __func__);
max_key_len = enc->length - sizeof(struct iw_encode_ext);
if (max_key_len < 0)
return -EINVAL;
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: key_index = %d\n", __func__, key_index);
pr_debug("%s: key_len = %d\n", __func__, enc->length);
pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index)
key_index--;
else
key_index = wl->current_key;
memset(ext, 0, sizeof(struct iw_encode_ext));
switch (wl->group_cipher_method) {
case GELIC_WL_CIPHER_WEP:
ext->alg = IW_ENCODE_ALG_WEP;
enc->flags |= IW_ENCODE_ENABLED;
break;
case GELIC_WL_CIPHER_TKIP:
ext->alg = IW_ENCODE_ALG_TKIP;
enc->flags |= IW_ENCODE_ENABLED;
break;
case GELIC_WL_CIPHER_AES:
ext->alg = IW_ENCODE_ALG_CCMP;
enc->flags |= IW_ENCODE_ENABLED;
break;
case GELIC_WL_CIPHER_NONE:
default:
ext->alg = IW_ENCODE_ALG_NONE;
enc->flags |= IW_ENCODE_NOKEY;
break;
}
if (!(enc->flags & IW_ENCODE_NOKEY)) {
if (max_key_len < wl->key_len[key_index]) {
ret = -E2BIG;
goto out;
}
if (test_bit(key_index, &wl->key_enabled))
memcpy(ext->key, wl->key[key_index],
wl->key_len[key_index]);
else
pr_debug("%s: disabled key requested ix=%d\n",
__func__, key_index);
}
out:
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: ->\n", __func__);
return ret;
}
/* SIOC{S,G}IWMODE */
static int gelic_wl_set_mode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
__u32 mode = data->mode;
int ret;
pr_debug("%s: <-\n", __func__);
if (mode == IW_MODE_INFRA)
ret = 0;
else
ret = -EOPNOTSUPP;
pr_debug("%s: -> %d\n", __func__, ret);
return ret;
}
static int gelic_wl_get_mode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
__u32 *mode = &data->mode;
pr_debug("%s: <-\n", __func__);
*mode = IW_MODE_INFRA;
pr_debug("%s: ->\n", __func__);
return 0;
}
/* SIOCGIWNICKN */
static int gelic_wl_get_nick(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
strcpy(extra, "gelic_wl");
data->data.length = strlen(extra);
data->data.flags = 1;
return 0;
}
/* --- */
static struct iw_statistics *gelic_wl_get_wireless_stats(
struct net_device *netdev)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct gelic_eurus_cmd *cmd;
struct iw_statistics *is;
struct gelic_eurus_rssi_info *rssi;
void *buf;
pr_debug("%s: <-\n", __func__);
buf = (void *)__get_free_page(GFP_KERNEL);
if (!buf)
return NULL;
is = &wl->iwstat;
memset(is, 0, sizeof(*is));
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
buf, sizeof(*rssi));
if (cmd && !cmd->status && !cmd->cmd_status) {
rssi = buf;
is->qual.level = be16_to_cpu(rssi->rssi);
is->qual.updated = IW_QUAL_LEVEL_UPDATED |
IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
} else
/* not associated */
is->qual.updated = IW_QUAL_ALL_INVALID;
kfree(cmd);
free_page((unsigned long)buf);
pr_debug("%s: ->\n", __func__);
return is;
}
/*
* scanning helpers
*/
static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
u8 *essid, size_t essid_len)
{
struct gelic_eurus_cmd *cmd;
int ret = 0;
void *buf = NULL;
size_t len;
pr_debug("%s: <- always=%d\n", __func__, always_scan);
if (mutex_lock_interruptible(&wl->scan_lock))
return -ERESTARTSYS;
/*
* If already a scan in progress, do not trigger more
*/
if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
pr_debug("%s: scanning now\n", __func__);
goto out;
}
init_completion(&wl->scan_done);
/*
* If we have already a bss list, don't try to get new
* unless we are doing an ESSID scan
*/
if ((!essid_len && !always_scan)
&& wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
pr_debug("%s: already has the list\n", __func__);
complete(&wl->scan_done);
goto out;
}
/* ESSID scan ? */
if (essid_len && essid) {
buf = (void *)__get_free_page(GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto out;
}
len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
memset(buf, 0, len);
memcpy(buf, essid, essid_len);
pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
} else
len = 0;
/*
* issue start scan request
*/
wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
buf, len);
if (!cmd || cmd->status || cmd->cmd_status) {
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
complete(&wl->scan_done);
ret = -ENOMEM;
goto out;
}
kfree(cmd);
out:
free_page((unsigned long)buf);
mutex_unlock(&wl->scan_lock);
pr_debug("%s: ->\n", __func__);
return ret;
}
/*
* retrieve scan result from the chip (hypervisor)
* this function is invoked by schedule work.
*/
static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
{
struct gelic_eurus_cmd *cmd = NULL;
struct gelic_wl_scan_info *target, *tmp;
struct gelic_wl_scan_info *oldest = NULL;
struct gelic_eurus_scan_info *scan_info;
unsigned int scan_info_size;
union iwreq_data data;
unsigned long this_time = jiffies;
unsigned int data_len, i, found, r;
void *buf;
pr_debug("%s:start\n", __func__);
mutex_lock(&wl->scan_lock);
buf = (void *)__get_free_page(GFP_KERNEL);
if (!buf) {
pr_info("%s: scan buffer alloc failed\n", __func__);
goto out;
}
if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
/*
* stop() may be called while scanning, ignore result
*/
pr_debug("%s: scan complete when stat != scanning(%d)\n",
__func__, wl->scan_stat);
goto out;
}
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
buf, PAGE_SIZE);
if (!cmd || cmd->status || cmd->cmd_status) {
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
pr_info("%s:cmd failed\n", __func__);
kfree(cmd);
goto out;
}
data_len = cmd->size;
pr_debug("%s: data_len = %d\n", __func__, data_len);
kfree(cmd);
/* OK, bss list retrieved */
wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
/* mark all entries are old */
list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
target->valid = 0;
/* expire too old entries */
if (time_before(target->last_scanned + wl->scan_age,
this_time)) {
kfree(target->hwinfo);
target->hwinfo = NULL;
list_move_tail(&target->list, &wl->network_free_list);
}
}
/* put them in the network_list */
for (i = 0, scan_info_size = 0, scan_info = buf;
scan_info_size < data_len;
i++, scan_info_size += be16_to_cpu(scan_info->size),
scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
be16_to_cpu(scan_info->size),
&scan_info->bssid[2], scan_info);
/*
* The wireless firmware may return invalid channel 0 and/or
* invalid rate if the AP emits zero length SSID ie. As this
* scan information is useless, ignore it
*/
if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
pr_debug("%s: invalid scan info\n", __func__);
continue;
}
found = 0;
oldest = NULL;
list_for_each_entry(target, &wl->network_list, list) {
if (ether_addr_equal(&target->hwinfo->bssid[2],
&scan_info->bssid[2])) {
found = 1;
pr_debug("%s: same BBS found scanned list\n",
__func__);
break;
}
if (!oldest ||
(target->last_scanned < oldest->last_scanned))
oldest = target;
}
if (!found) {
/* not found in the list */
if (list_empty(&wl->network_free_list)) {
/* expire oldest */
target = oldest;
} else {
target = list_entry(wl->network_free_list.next,
struct gelic_wl_scan_info,
list);
}
}
/* update the item */
target->last_scanned = this_time;
target->valid = 1;
target->eurus_index = i;
kfree(target->hwinfo);
target->hwinfo = kmemdup(scan_info,
be16_to_cpu(scan_info->size),
GFP_KERNEL);
if (!target->hwinfo)
continue;
/* copy hw scan info */
target->essid_len = strnlen(scan_info->essid,
sizeof(scan_info->essid));
target->rate_len = 0;
for (r = 0; r < 12; r++)
if (scan_info->rate[r])
target->rate_len++;
if (8 < target->rate_len)
pr_info("%s: AP returns %d rates\n", __func__,
target->rate_len);
target->rate_ext_len = 0;
for (r = 0; r < 16; r++)
if (scan_info->ext_rate[r])
target->rate_ext_len++;
list_move_tail(&target->list, &wl->network_list);
}
memset(&data, 0, sizeof(data));
wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
NULL);
out:
free_page((unsigned long)buf);
complete(&wl->scan_done);
mutex_unlock(&wl->scan_lock);
pr_debug("%s:end\n", __func__);
}
/*
* Select an appropriate bss from current scan list regarding
* current settings from userspace.
* The caller must hold wl->scan_lock,
* and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
*/
static void update_best(struct gelic_wl_scan_info **best,
struct gelic_wl_scan_info *candid,
int *best_weight,
int *weight)
{
if (*best_weight < ++(*weight)) {
*best_weight = *weight;
*best = candid;
}
}
static
struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *scan_info;
struct gelic_wl_scan_info *best_bss;
int weight, best_weight;
u16 security;
pr_debug("%s: <-\n", __func__);
best_bss = NULL;
best_weight = 0;
list_for_each_entry(scan_info, &wl->network_list, list) {
pr_debug("%s: station %p\n", __func__, scan_info);
if (!scan_info->valid) {
pr_debug("%s: station invalid\n", __func__);
continue;
}
/* If bss specified, check it only */
if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
wl->bssid)) {
best_bss = scan_info;
pr_debug("%s: bssid matched\n", __func__);
break;
} else {
pr_debug("%s: bssid unmatched\n", __func__);
continue;
}
}
weight = 0;
/* security */
security = be16_to_cpu(scan_info->hwinfo->security) &
GELIC_EURUS_SCAN_SEC_MASK;
if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
if (security == GELIC_EURUS_SCAN_SEC_WPA2)
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
if (security == GELIC_EURUS_SCAN_SEC_WPA)
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
if (security == GELIC_EURUS_SCAN_SEC_WEP)
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
}
/* If ESSID is set, check it */
if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
if ((scan_info->essid_len == wl->essid_len) &&
!strncmp(wl->essid,
scan_info->hwinfo->essid,
scan_info->essid_len))
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
}
}
#ifdef DEBUG
pr_debug("%s: -> bss=%p\n", __func__, best_bss);
if (best_bss) {
pr_debug("%s:addr=%pM\n", __func__,
&best_bss->hwinfo->bssid[2]);
}
#endif
return best_bss;
}
/*
* Setup WEP configuration to the chip
* The caller must hold wl->scan_lock,
* and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
*/
static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
{
unsigned int i;
struct gelic_eurus_wep_cfg *wep;
struct gelic_eurus_cmd *cmd;
int wep104 = 0;
int have_key = 0;
int ret = 0;
pr_debug("%s: <-\n", __func__);
/* we can assume no one should uses the buffer */
wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
if (!wep)
return -ENOMEM;
memset(wep, 0, sizeof(*wep));
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
pr_debug("%s: WEP mode\n", __func__);
for (i = 0; i < GELIC_WEP_KEYS; i++) {
if (!test_bit(i, &wl->key_enabled))
continue;
pr_debug("%s: key#%d enabled\n", __func__, i);
have_key = 1;
if (wl->key_len[i] == 13)
wep104 = 1;
else if (wl->key_len[i] != 5) {
pr_info("%s: wrong wep key[%d]=%d\n",
__func__, i, wl->key_len[i]);
ret = -EINVAL;
goto out;
}
memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
}
if (!have_key) {
pr_info("%s: all wep key disabled\n", __func__);
ret = -EINVAL;
goto out;
}
if (wep104) {
pr_debug("%s: 104bit key\n", __func__);
wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
} else {
pr_debug("%s: 40bit key\n", __func__);
wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
}
} else {
pr_debug("%s: NO encryption\n", __func__);
wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
}
/* issue wep setup */
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
wep, sizeof(*wep));
if (!cmd)
ret = -ENOMEM;
else if (cmd->status || cmd->cmd_status)
ret = -ENXIO;
kfree(cmd);
out:
free_page((unsigned long)wep);
pr_debug("%s: ->\n", __func__);
return ret;
}
#ifdef DEBUG
static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
{
switch (sec) {
case GELIC_EURUS_WPA_SEC_NONE:
return "NONE";
case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
return "WPA_TKIP_TKIP";
case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
return "WPA_TKIP_AES";
case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
return "WPA_AES_AES";
case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
return "WPA2_TKIP_TKIP";
case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
return "WPA2_TKIP_AES";
case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
return "WPA2_AES_AES";
}
return "";
};
#endif
static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
{
struct gelic_eurus_wpa_cfg *wpa;
struct gelic_eurus_cmd *cmd;
u16 security;
int ret = 0;
pr_debug("%s: <-\n", __func__);
/* we can assume no one should uses the buffer */
wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
if (!wpa)
return -ENOMEM;
memset(wpa, 0, sizeof(*wpa));
if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
pr_info("%s: PSK not configured yet\n", __func__);
/* copy key */
memcpy(wpa->psk, wl->psk, wl->psk_len);
/* set security level */
if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
} else {
if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
precise_ie())
security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
else
security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
}
} else {
if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
} else {
if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
precise_ie())
security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
else
security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
}
}
wpa->security = cpu_to_be16(security);
/* PSK type */
wpa->psk_type = cpu_to_be16(wl->psk_type);
#ifdef DEBUG
pr_debug("%s: sec=%s psktype=%s\n", __func__,
wpasecstr(wpa->security),
(wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
"BIN" : "passphrase");
#if 0
/*
* don't enable here if you plan to submit
* the debug log because this dumps your precious
* passphrase/key.
*/
pr_debug("%s: psk=%s\n", __func__,
(wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
"N/A" : wpa->psk);
#endif
#endif
/* issue wpa setup */
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
wpa, sizeof(*wpa));
if (!cmd)
ret = -ENOMEM;
else if (cmd->status || cmd->cmd_status)
ret = -ENXIO;
kfree(cmd);
free_page((unsigned long)wpa);
pr_debug("%s: --> %d\n", __func__, ret);
return ret;
}
/*
* Start association. caller must hold assoc_stat_lock
*/
static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
struct gelic_wl_scan_info *bss)
{
struct gelic_eurus_cmd *cmd;
struct gelic_eurus_common_cfg *common;
int ret = 0;
unsigned long rc;
pr_debug("%s: <-\n", __func__);
/* do common config */
common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
if (!common)
return -ENOMEM;
memset(common, 0, sizeof(*common));
common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
common->scan_index = cpu_to_be16(bss->eurus_index);
switch (wl->auth_method) {
case GELIC_EURUS_AUTH_OPEN:
common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
break;
case GELIC_EURUS_AUTH_SHARED:
common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
break;
}
#ifdef DEBUG
scan_list_dump(wl);
#endif
pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
be16_to_cpu(common->scan_index),
be16_to_cpu(common->bss_type),
be16_to_cpu(common->auth_method));
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
common, sizeof(*common));
if (!cmd || cmd->status || cmd->cmd_status) {
ret = -ENOMEM;
kfree(cmd);
goto out;
}
kfree(cmd);
/* WEP/WPA */
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_NONE:
/* If WEP or no security, setup WEP config */
ret = gelic_wl_do_wep_setup(wl);
break;
case GELIC_WL_WPA_LEVEL_WPA:
case GELIC_WL_WPA_LEVEL_WPA2:
ret = gelic_wl_do_wpa_setup(wl);
break;
}
if (ret) {
pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
ret);
ret = -EPERM;
gelic_wl_send_iwap_event(wl, NULL);
goto out;
}
/* start association */
init_completion(&wl->assoc_done);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
NULL, 0);
if (!cmd || cmd->status || cmd->cmd_status) {
pr_debug("%s: assoc request failed\n", __func__);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
kfree(cmd);
ret = -ENOMEM;
gelic_wl_send_iwap_event(wl, NULL);
goto out;
}
kfree(cmd);
/* wait for connected event */
rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
if (!rc) {
/* timeouted. Maybe key or cyrpt mode is wrong */
pr_info("%s: connect timeout\n", __func__);
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
NULL, 0);
kfree(cmd);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
gelic_wl_send_iwap_event(wl, NULL);
ret = -ENXIO;
} else {
wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
/* copy bssid */
memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
/* send connect event */
gelic_wl_send_iwap_event(wl, wl->active_bssid);
pr_info("%s: connected\n", __func__);
}
out:
free_page((unsigned long)common);
pr_debug("%s: ->\n", __func__);
return ret;
}
/*
* connected event
*/
static void gelic_wl_connected_event(struct gelic_wl_info *wl,
u64 event)
{
u64 desired_event = 0;
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_NONE:
desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
break;
case GELIC_WL_WPA_LEVEL_WPA:
case GELIC_WL_WPA_LEVEL_WPA2:
desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
break;
}
if (desired_event == event) {
pr_debug("%s: completed\n", __func__);
complete(&wl->assoc_done);
netif_carrier_on(port_to_netdev(wl_port(wl)));
} else
pr_debug("%s: event %#llx under wpa\n",
__func__, event);
}
/*
* disconnect event
*/
static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
u64 event)
{
struct gelic_eurus_cmd *cmd;
int lock;
/*
* If we fall here in the middle of association,
* associate_bss() should be waiting for complation of
* wl->assoc_done.
* As it waits with timeout, just leave assoc_done
* uncompleted, then it terminates with timeout
*/
if (!mutex_trylock(&wl->assoc_stat_lock)) {
pr_debug("%s: already locked\n", __func__);
lock = 0;
} else {
pr_debug("%s: obtain lock\n", __func__);
lock = 1;
}
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
kfree(cmd);
/* send disconnected event to the supplicant */
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
gelic_wl_send_iwap_event(wl, NULL);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
netif_carrier_off(port_to_netdev(wl_port(wl)));
if (lock)
mutex_unlock(&wl->assoc_stat_lock);
}
/*
* event worker
*/
#ifdef DEBUG
static const char *eventstr(enum gelic_lv1_wl_event event)
{
static char buf[32];
char *ret;
if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
ret = "EURUS_READY";
else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
ret = "SCAN_COMPLETED";
else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
ret = "DEAUTH";
else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
ret = "BEACON_LOST";
else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
ret = "CONNECTED";
else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
ret = "WPA_CONNECTED";
else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
ret = "WPA_ERROR";
else {
sprintf(buf, "Unknown(%#x)", event);
ret = buf;
}
return ret;
}
#else
static const char *eventstr(enum gelic_lv1_wl_event event)
{
return NULL;
}
#endif
static void gelic_wl_event_worker(struct work_struct *work)
{
struct gelic_wl_info *wl;
struct gelic_port *port;
u64 event, tmp;
int status;
pr_debug("%s:start\n", __func__);
wl = container_of(work, struct gelic_wl_info, event_work.work);
port = wl_port(wl);
while (1) {
status = lv1_net_control(bus_id(port->card), dev_id(port->card),
GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
&event, &tmp);
if (status) {
if (status != LV1_NO_ENTRY)
pr_debug("%s:wlan event failed %d\n",
__func__, status);
/* got all events */
pr_debug("%s:end\n", __func__);
return;
}
pr_debug("%s: event=%s\n", __func__, eventstr(event));
switch (event) {
case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
gelic_wl_scan_complete_event(wl);
break;
case GELIC_LV1_WL_EVENT_BEACON_LOST:
case GELIC_LV1_WL_EVENT_DEAUTH:
gelic_wl_disconnect_event(wl, event);
break;
case GELIC_LV1_WL_EVENT_CONNECTED:
case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
gelic_wl_connected_event(wl, event);
break;
default:
break;
}
} /* while */
}
/*
* association worker
*/
static void gelic_wl_assoc_worker(struct work_struct *work)
{
struct gelic_wl_info *wl;
struct gelic_wl_scan_info *best_bss;
int ret;
unsigned long irqflag;
u8 *essid;
size_t essid_len;
wl = container_of(work, struct gelic_wl_info, assoc_work.work);
mutex_lock(&wl->assoc_stat_lock);
if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
goto out;
spin_lock_irqsave(&wl->lock, irqflag);
if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
pr_debug("%s: assoc ESSID configured %s\n", __func__,
wl->essid);
essid = wl->essid;
essid_len = wl->essid_len;
} else {
essid = NULL;
essid_len = 0;
}
spin_unlock_irqrestore(&wl->lock, irqflag);
ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
if (ret == -ERESTARTSYS) {
pr_debug("%s: scan start failed association\n", __func__);
schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
goto out;
} else if (ret) {
pr_info("%s: scan prerequisite failed\n", __func__);
goto out;
}
/*
* Wait for bss scan completion
* If we have scan list already, gelic_wl_start_scan()
* returns OK and raises the complete. Thus,
* it's ok to wait unconditionally here
*/
wait_for_completion(&wl->scan_done);
pr_debug("%s: scan done\n", __func__);
mutex_lock(&wl->scan_lock);
if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
gelic_wl_send_iwap_event(wl, NULL);
pr_info("%s: no scan list. association failed\n", __func__);
goto scan_lock_out;
}
/* find best matching bss */
best_bss = gelic_wl_find_best_bss(wl);
if (!best_bss) {
gelic_wl_send_iwap_event(wl, NULL);
pr_info("%s: no bss matched. association failed\n", __func__);
goto scan_lock_out;
}
/* ok, do association */
ret = gelic_wl_associate_bss(wl, best_bss);
if (ret)
pr_info("%s: association failed %d\n", __func__, ret);
scan_lock_out:
mutex_unlock(&wl->scan_lock);
out:
mutex_unlock(&wl->assoc_stat_lock);
}
/*
* Interrupt handler
* Called from the ethernet interrupt handler
* Processes wireless specific virtual interrupts only
*/
void gelic_wl_interrupt(struct net_device *netdev, u64 status)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
pr_debug("%s:cmd complete\n", __func__);
complete(&wl->cmd_done_intr);
}
if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
pr_debug("%s:event received\n", __func__);
queue_delayed_work(wl->event_queue, &wl->event_work, 0);
}
}
/*
* driver helpers
*/
static const iw_handler gelic_wl_wext_handler[] =
{
IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
};
static const struct iw_handler_def gelic_wl_wext_handler_def = {
.num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
.standard = gelic_wl_wext_handler,
.get_wireless_stats = gelic_wl_get_wireless_stats,
};
static struct net_device *gelic_wl_alloc(struct gelic_card *card)
{
struct net_device *netdev;
struct gelic_port *port;
struct gelic_wl_info *wl;
unsigned int i;
pr_debug("%s:start\n", __func__);
netdev = alloc_etherdev(sizeof(struct gelic_port) +
sizeof(struct gelic_wl_info));
pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
if (!netdev)
return NULL;
strcpy(netdev->name, "wlan%d");
port = netdev_priv(netdev);
port->netdev = netdev;
port->card = card;
port->type = GELIC_PORT_WIRELESS;
wl = port_wl(port);
pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
/* allocate scan list */
wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
if (!wl->networks)
goto fail_bss;
wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
if (!wl->eurus_cmd_queue)
goto fail_cmd_workqueue;
wl->event_queue = create_singlethread_workqueue("gelic_event");
if (!wl->event_queue)
goto fail_event_workqueue;
INIT_LIST_HEAD(&wl->network_free_list);
INIT_LIST_HEAD(&wl->network_list);
for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
list_add_tail(&wl->networks[i].list,
&wl->network_free_list);
init_completion(&wl->cmd_done_intr);
INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
mutex_init(&wl->scan_lock);
mutex_init(&wl->assoc_stat_lock);
init_completion(&wl->scan_done);
/* for the case that no scan request is issued and stop() is called */
complete(&wl->scan_done);
spin_lock_init(&wl->lock);
wl->scan_age = 5*HZ; /* FIXME */
/* buffer for receiving scanned list etc */
BUILD_BUG_ON(PAGE_SIZE <
sizeof(struct gelic_eurus_scan_info) *
GELIC_EURUS_MAX_SCAN);
pr_debug("%s:end\n", __func__);
return netdev;
fail_event_workqueue:
destroy_workqueue(wl->eurus_cmd_queue);
fail_cmd_workqueue:
kfree(wl->networks);
fail_bss:
free_netdev(netdev);
pr_debug("%s:end error\n", __func__);
return NULL;
}
static void gelic_wl_free(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *scan_info;
unsigned int i;
pr_debug("%s: <-\n", __func__);
pr_debug("%s: destroy queues\n", __func__);
destroy_workqueue(wl->eurus_cmd_queue);
destroy_workqueue(wl->event_queue);
scan_info = wl->networks;
for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
kfree(scan_info->hwinfo);
kfree(wl->networks);
free_netdev(port_to_netdev(wl_port(wl)));
pr_debug("%s: ->\n", __func__);
}
static int gelic_wl_try_associate(struct net_device *netdev)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
int ret = -1;
unsigned int i;
pr_debug("%s: <-\n", __func__);
/* check constraits for start association */
/* for no access restriction AP */
if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
if (test_bit(GELIC_WL_STAT_CONFIGURED,
&wl->stat))
goto do_associate;
else {
pr_debug("%s: no wep, not configured\n", __func__);
return ret;
}
}
/* for WEP, one of four keys should be set */
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
/* one of keys set */
for (i = 0; i < GELIC_WEP_KEYS; i++) {
if (test_bit(i, &wl->key_enabled))
goto do_associate;
}
pr_debug("%s: WEP, but no key specified\n", __func__);
return ret;
}
/* for WPA[2], psk should be set */
if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
(wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
&wl->stat))
goto do_associate;
else {
pr_debug("%s: AES/TKIP, but PSK not configured\n",
__func__);
return ret;
}
}
do_associate:
ret = schedule_delayed_work(&wl->assoc_work, 0);
pr_debug("%s: start association work %d\n", __func__, ret);
return ret;
}
/*
* netdev handlers
*/
static int gelic_wl_open(struct net_device *netdev)
{
struct gelic_card *card = netdev_card(netdev);
pr_debug("%s:->%p\n", __func__, netdev);
gelic_card_up(card);
/* try to associate */
gelic_wl_try_associate(netdev);
netif_start_queue(netdev);
pr_debug("%s:<-\n", __func__);
return 0;
}
/*
* reset state machine
*/
static int gelic_wl_reset_state(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *target;
struct gelic_wl_scan_info *tmp;
/* empty scan list */
list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
list_move_tail(&target->list, &wl->network_free_list);
}
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
/* clear configuration */
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
wl->key_enabled = 0;
wl->current_key = 0;
wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
wl->psk_len = 0;
wl->essid_len = 0;
memset(wl->essid, 0, sizeof(wl->essid));
memset(wl->bssid, 0, sizeof(wl->bssid));
memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
memset(&wl->iwstat, 0, sizeof(wl->iwstat));
/* all status bit clear */
wl->stat = 0;
return 0;
}
/*
* Tell eurus to terminate association
*/
static void gelic_wl_disconnect(struct net_device *netdev)
{
struct gelic_port *port = netdev_priv(netdev);
struct gelic_wl_info *wl = port_wl(port);
struct gelic_eurus_cmd *cmd;
/*
* If scann process is running on chip,
* further requests will be rejected
*/
if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
wait_for_completion_timeout(&wl->scan_done, HZ);
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
kfree(cmd);
gelic_wl_send_iwap_event(wl, NULL);
};
static int gelic_wl_stop(struct net_device *netdev)
{
struct gelic_port *port = netdev_priv(netdev);
struct gelic_wl_info *wl = port_wl(port);
struct gelic_card *card = netdev_card(netdev);
pr_debug("%s:<-\n", __func__);
/*
* Cancel pending association work.
* event work can run after netdev down
*/
cancel_delayed_work(&wl->assoc_work);
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
gelic_wl_disconnect(netdev);
/* reset our state machine */
gelic_wl_reset_state(wl);
netif_stop_queue(netdev);
gelic_card_down(card);
pr_debug("%s:->\n", __func__);
return 0;
}
/* -- */
static const struct net_device_ops gelic_wl_netdevice_ops = {
.ndo_open = gelic_wl_open,
.ndo_stop = gelic_wl_stop,
.ndo_start_xmit = gelic_net_xmit,
.ndo_set_rx_mode = gelic_net_set_multi,
.ndo_tx_timeout = gelic_net_tx_timeout,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = gelic_net_poll_controller,
#endif
};
static const struct ethtool_ops gelic_wl_ethtool_ops = {
.get_drvinfo = gelic_net_get_drvinfo,
.get_link = gelic_wl_get_link,
};
static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
{
struct gelic_wl_info *wl;
wl = port_wl(netdev_priv(netdev));
BUG_ON(!wl);
netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
netdev->ethtool_ops = &gelic_wl_ethtool_ops;
netdev->netdev_ops = &gelic_wl_netdevice_ops;
netdev->wireless_data = &wl->wireless_data;
netdev->wireless_handlers = &gelic_wl_wext_handler_def;
}
/*
* driver probe/remove
*/
int gelic_wl_driver_probe(struct gelic_card *card)
{
int ret;
struct net_device *netdev;
pr_debug("%s:start\n", __func__);
if (ps3_compare_firmware_version(1, 6, 0) < 0)
return 0;
if (!card->vlan[GELIC_PORT_WIRELESS].tx)
return 0;
/* alloc netdevice for wireless */
netdev = gelic_wl_alloc(card);
if (!netdev)
return -ENOMEM;
/* setup net_device structure */
SET_NETDEV_DEV(netdev, &card->dev->core);
gelic_wl_setup_netdev_ops(netdev);
/* setup some of net_device and register it */
ret = gelic_net_setup_netdev(netdev, card);
if (ret)
goto fail_setup;
card->netdev[GELIC_PORT_WIRELESS] = netdev;
/* add enable wireless interrupt */
card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED;
/* to allow wireless commands while both interfaces are down */
gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED);
pr_debug("%s:end\n", __func__);
return 0;
fail_setup:
gelic_wl_free(port_wl(netdev_port(netdev)));
return ret;
}
int gelic_wl_driver_remove(struct gelic_card *card)
{
struct gelic_wl_info *wl;
struct net_device *netdev;
pr_debug("%s:start\n", __func__);
if (ps3_compare_firmware_version(1, 6, 0) < 0)
return 0;
if (!card->vlan[GELIC_PORT_WIRELESS].tx)
return 0;
netdev = card->netdev[GELIC_PORT_WIRELESS];
wl = port_wl(netdev_priv(netdev));
/* if the interface was not up, but associated */
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
gelic_wl_disconnect(netdev);
complete(&wl->cmd_done_intr);
/* cancel all work queue */
cancel_delayed_work(&wl->assoc_work);
cancel_delayed_work(&wl->event_work);
flush_workqueue(wl->eurus_cmd_queue);
flush_workqueue(wl->event_queue);
unregister_netdev(netdev);
/* disable wireless interrupt */
pr_debug("%s: disable intr\n", __func__);
card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED);
/* free bss list, netdev*/
gelic_wl_free(wl);
pr_debug("%s:end\n", __func__);
return 0;
}
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