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Merge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/luca/wl12xx

Browse source
This commit is contained in:
John W. Linville 2011-05-13 15:18:35 -04:00
commit b376704bf5
10 changed files with 728 additions and 16 deletions
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4
drivers/net/wireless/wl12xx/boot.c
View file

@ -478,7 +478,9 @@ static int wl1271_boot_run_firmware(struct wl1271 *wl)
DISCONNECT_EVENT_COMPLETE_ID |
RSSI_SNR_TRIGGER_0_EVENT_ID |
PSPOLL_DELIVERY_FAILURE_EVENT_ID |
SOFT_GEMINI_SENSE_EVENT_ID;
SOFT_GEMINI_SENSE_EVENT_ID |
PERIODIC_SCAN_REPORT_EVENT_ID |
PERIODIC_SCAN_COMPLETE_EVENT_ID;
if (wl->bss_type == BSS_TYPE_AP_BSS)
wl->event_mask |= STA_REMOVE_COMPLETE_EVENT_ID;

21
drivers/net/wireless/wl12xx/conf.h
View file

@ -1147,6 +1147,26 @@ struct conf_scan_settings {
};
struct conf_sched_scan_settings {
/* minimum time to wait on the channel for active scans (in TUs) */
u16 min_dwell_time_active;
/* maximum time to wait on the channel for active scans (in TUs) */
u16 max_dwell_time_active;
/* time to wait on the channel for passive scans (in TUs) */
u32 dwell_time_passive;
/* number of probe requests to send on each channel in active scans */
u8 num_probe_reqs;
/* RSSI threshold to be used for filtering */
s8 rssi_threshold;
/* SNR threshold to be used for filtering */
s8 snr_threshold;
};
/* these are number of channels on the band divided by two, rounded up */
#define CONF_TX_PWR_COMPENSATION_LEN_2 7
#define CONF_TX_PWR_COMPENSATION_LEN_5 18
@ -1234,6 +1254,7 @@ struct conf_drv_settings {
struct conf_pm_config_settings pm_config;
struct conf_roam_trigger_settings roam_trigger;
struct conf_scan_settings scan;
struct conf_sched_scan_settings sched_scan;
struct conf_rf_settings rf;
struct conf_ht_setting ht;
struct conf_memory_settings mem_wl127x;

1
drivers/net/wireless/wl12xx/debugfs.c
View file

@ -377,6 +377,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
DRIVER_STATE_PRINT_HEX(platform_quirks);
DRIVER_STATE_PRINT_HEX(chip.id);
DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
DRIVER_STATE_PRINT_INT(sched_scanning);
#undef DRIVER_STATE_PRINT_INT
#undef DRIVER_STATE_PRINT_LONG

23
drivers/net/wireless/wl12xx/event.c
View file

@ -135,6 +135,13 @@ static int wl1271_event_ps_report(struct wl1271 *wl,
/* enable beacon early termination */
ret = wl1271_acx_bet_enable(wl, true);
if (ret < 0)
break;
if (wl->ps_compl) {
complete(wl->ps_compl);
wl->ps_compl = NULL;
}
break;
default:
break;
@ -188,6 +195,22 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
wl1271_scan_stm(wl);
}
if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_REPORT_EVENT "
"(status 0x%0x)", mbox->scheduled_scan_status);
wl1271_scan_sched_scan_results(wl);
}
if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID) {
wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT "
"(status 0x%0x)", mbox->scheduled_scan_status);
if (wl->sched_scanning) {
wl1271_scan_sched_scan_stop(wl);
ieee80211_sched_scan_stopped(wl->hw);
}
}
/* disable dynamic PS when requested by the firmware */
if (vector & SOFT_GEMINI_SENSE_EVENT_ID &&
wl->bss_type == BSS_TYPE_STA_BSS) {

260
drivers/net/wireless/wl12xx/main.c
View file

@ -257,12 +257,16 @@ static struct conf_drv_settings default_conf = {
.wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
.listen_interval = 1,
.bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
.bcn_filt_ie_count = 1,
.bcn_filt_ie_count = 2,
.bcn_filt_ie = {
[0] = {
.ie = WLAN_EID_CHANNEL_SWITCH,
.rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
}
},
[1] = {
.ie = WLAN_EID_HT_INFORMATION,
.rule = CONF_BCN_RULE_PASS_ON_CHANGE,
},
},
.synch_fail_thold = 10,
.bss_lose_timeout = 100,
@ -302,6 +306,15 @@ static struct conf_drv_settings default_conf = {
.max_dwell_time_passive = 100000,
.num_probe_reqs = 2,
},
.sched_scan = {
/* sched_scan requires dwell times in TU instead of TU/1000 */
.min_dwell_time_active = 8,
.max_dwell_time_active = 30,
.dwell_time_passive = 100,
.num_probe_reqs = 2,
.rssi_threshold = -90,
.snr_threshold = 0,
},
.rf = {
.tx_per_channel_power_compensation_2 = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@ -975,6 +988,11 @@ static void wl1271_recovery_work(struct work_struct *work)
/* Prevent spurious TX during FW restart */
ieee80211_stop_queues(wl->hw);
if (wl->sched_scanning) {
ieee80211_sched_scan_stopped(wl->hw);
wl->sched_scanning = false;
}
/* reboot the chipset */
__wl1271_op_remove_interface(wl, false);
ieee80211_restart_hw(wl->hw);
@ -1332,6 +1350,150 @@ static struct notifier_block wl1271_dev_notifier = {
.notifier_call = wl1271_dev_notify,
};
static int wl1271_configure_suspend(struct wl1271 *wl)
{
int ret;
if (wl->bss_type != BSS_TYPE_STA_BSS)
return 0;
mutex_lock(&wl->mutex);
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
goto out_unlock;
/* enter psm if needed*/
if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
DECLARE_COMPLETION_ONSTACK(compl);
wl->ps_compl = &compl;
ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
wl->basic_rate, true);
if (ret < 0)
goto out_sleep;
/* we must unlock here so we will be able to get events */
wl1271_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
ret = wait_for_completion_timeout(
&compl, msecs_to_jiffies(WL1271_PS_COMPLETE_TIMEOUT));
if (ret <= 0) {
wl1271_warning("couldn't enter ps mode!");
ret = -EBUSY;
goto out;
}
/* take mutex again, and wakeup */
mutex_lock(&wl->mutex);
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
goto out_unlock;
}
out_sleep:
wl1271_ps_elp_sleep(wl);
out_unlock:
mutex_unlock(&wl->mutex);
out:
return ret;
}
static void wl1271_configure_resume(struct wl1271 *wl)
{
int ret;
if (wl->bss_type != BSS_TYPE_STA_BSS)
return;
mutex_lock(&wl->mutex);
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
goto out;
/* exit psm if it wasn't configured */
if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
wl->basic_rate, true);
wl1271_ps_elp_sleep(wl);
out:
mutex_unlock(&wl->mutex);
}
static int wl1271_op_suspend(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wow)
{
struct wl1271 *wl = hw->priv;
wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
wl->wow_enabled = !!wow;
if (wl->wow_enabled) {
int ret;
ret = wl1271_configure_suspend(wl);
if (ret < 0) {
wl1271_warning("couldn't prepare device to suspend");
return ret;
}
/* flush any remaining work */
wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
flush_delayed_work(&wl->scan_complete_work);
/*
* disable and re-enable interrupts in order to flush
* the threaded_irq
*/
wl1271_disable_interrupts(wl);
/*
* set suspended flag to avoid triggering a new threaded_irq
* work. no need for spinlock as interrupts are disabled.
*/
set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
wl1271_enable_interrupts(wl);
flush_work(&wl->tx_work);
flush_delayed_work(&wl->pspoll_work);
flush_delayed_work(&wl->elp_work);
}
return 0;
}
static int wl1271_op_resume(struct ieee80211_hw *hw)
{
struct wl1271 *wl = hw->priv;
wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
wl->wow_enabled);
/*
* re-enable irq_work enqueuing, and call irq_work directly if
* there is a pending work.
*/
if (wl->wow_enabled) {
struct wl1271 *wl = hw->priv;
unsigned long flags;
bool run_irq_work = false;
spin_lock_irqsave(&wl->wl_lock, flags);
clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
run_irq_work = true;
spin_unlock_irqrestore(&wl->wl_lock, flags);
if (run_irq_work) {
wl1271_debug(DEBUG_MAC80211,
"run postponed irq_work directly");
wl1271_irq(0, wl);
wl1271_enable_interrupts(wl);
}
wl1271_configure_resume(wl);
}
return 0;
}
static int wl1271_op_start(struct ieee80211_hw *hw)
{
wl1271_debug(DEBUG_MAC80211, "mac80211 start");
@ -1563,6 +1725,7 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
memset(wl->ap_hlid_map, 0, sizeof(wl->ap_hlid_map));
wl->ap_fw_ps_map = 0;
wl->ap_ps_map = 0;
wl->sched_scanning = false;
/*
* this is performed after the cancel_work calls and the associated
@ -1765,6 +1928,13 @@ static int wl1271_sta_handle_idle(struct wl1271 *wl, bool idle)
wl->session_counter++;
if (wl->session_counter >= SESSION_COUNTER_MAX)
wl->session_counter = 0;
/* The current firmware only supports sched_scan in idle */
if (wl->sched_scanning) {
wl1271_scan_sched_scan_stop(wl);
ieee80211_sched_scan_stopped(wl->hw);
}
ret = wl1271_dummy_join(wl);
if (ret < 0)
goto out;
@ -2317,6 +2487,60 @@ out:
return ret;
}
static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_sched_scan_request *req,
struct ieee80211_sched_scan_ies *ies)
{
struct wl1271 *wl = hw->priv;
int ret;
wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
mutex_lock(&wl->mutex);
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
goto out;
ret = wl1271_scan_sched_scan_config(wl, req, ies);
if (ret < 0)
goto out_sleep;
ret = wl1271_scan_sched_scan_start(wl);
if (ret < 0)
goto out_sleep;
wl->sched_scanning = true;
out_sleep:
wl1271_ps_elp_sleep(wl);
out:
mutex_unlock(&wl->mutex);
return ret;
}
static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct wl1271 *wl = hw->priv;
int ret;
wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
mutex_lock(&wl->mutex);
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
goto out;
wl1271_scan_sched_scan_stop(wl);
wl1271_ps_elp_sleep(wl);
out:
mutex_unlock(&wl->mutex);
}
static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
{
struct wl1271 *wl = hw->priv;
@ -2376,20 +2600,24 @@ out:
static int wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb,
int offset)
{
u8 *ptr = skb->data + offset;
u8 ssid_len;
const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
skb->len - offset);
/* find the location of the ssid in the beacon */
while (ptr < skb->data + skb->len) {
if (ptr[0] == WLAN_EID_SSID) {
wl->ssid_len = ptr[1];
memcpy(wl->ssid, ptr+2, wl->ssid_len);
return 0;
}
ptr += (ptr[1] + 2);
if (!ptr) {
wl1271_error("No SSID in IEs!");
return -ENOENT;
}
wl1271_error("No SSID in IEs!\n");
return -ENOENT;
ssid_len = ptr[1];
if (ssid_len > IEEE80211_MAX_SSID_LEN) {
wl1271_error("SSID is too long!");
return -EINVAL;
}
wl->ssid_len = ssid_len;
memcpy(wl->ssid, ptr+2, ssid_len);
return 0;
}
static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
@ -3422,12 +3650,16 @@ static const struct ieee80211_ops wl1271_ops = {
.stop = wl1271_op_stop,
.add_interface = wl1271_op_add_interface,
.remove_interface = wl1271_op_remove_interface,
.suspend = wl1271_op_suspend,
.resume = wl1271_op_resume,
.config = wl1271_op_config,
.prepare_multicast = wl1271_op_prepare_multicast,
.configure_filter = wl1271_op_configure_filter,
.tx = wl1271_op_tx,
.set_key = wl1271_op_set_key,
.hw_scan = wl1271_op_hw_scan,
.sched_scan_start = wl1271_op_sched_scan_start,
.sched_scan_stop = wl1271_op_sched_scan_stop,
.bss_info_changed = wl1271_op_bss_info_changed,
.set_frag_threshold = wl1271_op_set_frag_threshold,
.set_rts_threshold = wl1271_op_set_rts_threshold,
@ -3626,6 +3858,7 @@ int wl1271_init_ieee80211(struct wl1271 *wl)
IEEE80211_HW_CONNECTION_MONITOR |
IEEE80211_HW_SUPPORTS_CQM_RSSI |
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_AP_LINK_PS;
wl->hw->wiphy->cipher_suites = cipher_suites;
@ -3747,6 +3980,7 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
wl->ap_fw_ps_map = 0;
wl->quirks = 0;
wl->platform_quirks = 0;
wl->sched_scanning = false;
memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
for (i = 0; i < ACX_TX_DESCRIPTORS; i++)

2
drivers/net/wireless/wl12xx/ps.h
View file

@ -35,4 +35,6 @@ void wl1271_elp_work(struct work_struct *work);
void wl1271_ps_link_start(struct wl1271 *wl, u8 hlid, bool clean_queues);
void wl1271_ps_link_end(struct wl1271 *wl, u8 hlid);
#define WL1271_PS_COMPLETE_TIMEOUT 500
#endif /* __WL1271_PS_H__ */

243
drivers/net/wireless/wl12xx/scan.c
View file

@ -320,3 +320,246 @@ int wl1271_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
return 0;
}
static int
wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct conn_scan_ch_params *channels,
u32 band, bool radar, bool passive,
int start)
{
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, j;
u32 flags;
for (i = 0, j = start;
i < req->n_channels && j < MAX_CHANNELS_ALL_BANDS;
i++) {
flags = req->channels[i]->flags;
if (!(flags & IEEE80211_CHAN_DISABLED) &&
((flags & IEEE80211_CHAN_PASSIVE_SCAN) == passive) &&
((flags & IEEE80211_CHAN_RADAR) == radar) &&
(req->channels[i]->band == band)) {
wl1271_debug(DEBUG_SCAN, "band %d, center_freq %d ",
req->channels[i]->band,
req->channels[i]->center_freq);
wl1271_debug(DEBUG_SCAN, "hw_value %d, flags %X",
req->channels[i]->hw_value,
req->channels[i]->flags);
wl1271_debug(DEBUG_SCAN, "max_power %d",
req->channels[i]->max_power);
if (flags & IEEE80211_CHAN_PASSIVE_SCAN) {
channels[j].passive_duration =
cpu_to_le16(c->dwell_time_passive);
} else {
channels[j].min_duration =
cpu_to_le16(c->min_dwell_time_active);
channels[j].max_duration =
cpu_to_le16(c->max_dwell_time_active);
}
channels[j].tx_power_att = req->channels[j]->max_power;
channels[j].channel = req->channels[i]->hw_value;
j++;
}
}
return j - start;
}
static int
wl1271_scan_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct wl1271_cmd_sched_scan_config *cfg)
{
int idx = 0;
cfg->passive[0] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_2GHZ,
false, true, idx);
idx += cfg->passive[0];
cfg->active[0] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_2GHZ,
false, false, idx);
idx += cfg->active[0];
cfg->passive[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_5GHZ,
false, true, idx);
idx += cfg->passive[1];
cfg->active[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_5GHZ,
false, false, 14);
idx += cfg->active[1];
cfg->dfs =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
IEEE80211_BAND_5GHZ,
true, false, idx);
idx += cfg->dfs;
wl1271_debug(DEBUG_SCAN, " 2.4GHz: active %d passive %d",
cfg->active[0], cfg->passive[0]);
wl1271_debug(DEBUG_SCAN, " 5GHz: active %d passive %d",
cfg->active[1], cfg->passive[1]);
return idx;
}
int wl1271_scan_sched_scan_config(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct ieee80211_sched_scan_ies *ies)
{
struct wl1271_cmd_sched_scan_config *cfg = NULL;
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, total_channels, ret;
wl1271_debug(DEBUG_CMD, "cmd sched_scan scan config");
cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
if (!cfg)
return -ENOMEM;
cfg->rssi_threshold = c->rssi_threshold;
cfg->snr_threshold = c->snr_threshold;
cfg->n_probe_reqs = c->num_probe_reqs;
/* cycles set to 0 it means infinite (until manually stopped) */
cfg->cycles = 0;
/* report APs when at least 1 is found */
cfg->report_after = 1;
/* don't stop scanning automatically when something is found */
cfg->terminate = 0;
cfg->tag = WL1271_SCAN_DEFAULT_TAG;
/* don't filter on BSS type */
cfg->bss_type = SCAN_BSS_TYPE_ANY;
/* currently NL80211 supports only a single interval */
for (i = 0; i < SCAN_MAX_CYCLE_INTERVALS; i++)
cfg->intervals[i] = cpu_to_le32(req->interval);
if (req->ssids[0].ssid_len && req->ssids[0].ssid) {
cfg->filter_type = SCAN_SSID_FILTER_SPECIFIC;
cfg->ssid_len = req->ssids[0].ssid_len;
memcpy(cfg->ssid, req->ssids[0].ssid,
req->ssids[0].ssid_len);
} else {
cfg->filter_type = SCAN_SSID_FILTER_ANY;
cfg->ssid_len = 0;
}
total_channels = wl1271_scan_sched_scan_channels(wl, req, cfg);
if (total_channels == 0) {
wl1271_error("scan channel list is empty");
ret = -EINVAL;
goto out;
}
if (cfg->active[0]) {
ret = wl1271_cmd_build_probe_req(wl, req->ssids[0].ssid,
req->ssids[0].ssid_len,
ies->ie[IEEE80211_BAND_2GHZ],
ies->len[IEEE80211_BAND_2GHZ],
IEEE80211_BAND_2GHZ);
if (ret < 0) {
wl1271_error("2.4GHz PROBE request template failed");
goto out;
}
}
if (cfg->active[1]) {
ret = wl1271_cmd_build_probe_req(wl, req->ssids[0].ssid,
req->ssids[0].ssid_len,
ies->ie[IEEE80211_BAND_5GHZ],
ies->len[IEEE80211_BAND_5GHZ],
IEEE80211_BAND_5GHZ);
if (ret < 0) {
wl1271_error("5GHz PROBE request template failed");
goto out;
}
}
wl1271_dump(DEBUG_SCAN, "SCAN_CFG: ", cfg, sizeof(*cfg));
ret = wl1271_cmd_send(wl, CMD_CONNECTION_SCAN_CFG, cfg,
sizeof(*cfg), 0);
if (ret < 0) {
wl1271_error("SCAN configuration failed");
goto out;
}
out:
kfree(cfg);
return ret;
}
int wl1271_scan_sched_scan_start(struct wl1271 *wl)
{
struct wl1271_cmd_sched_scan_start *start;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd periodic scan start");
if (wl->bss_type != BSS_TYPE_STA_BSS)
return -EOPNOTSUPP;
if (!test_bit(WL1271_FLAG_IDLE, &wl->flags))
return -EBUSY;
start = kzalloc(sizeof(*start), GFP_KERNEL);
if (!start)
return -ENOMEM;
start->tag = WL1271_SCAN_DEFAULT_TAG;
ret = wl1271_cmd_send(wl, CMD_START_PERIODIC_SCAN, start,
sizeof(*start), 0);
if (ret < 0) {
wl1271_error("failed to send scan start command");
goto out_free;
}
out_free:
kfree(start);
return ret;
}
void wl1271_scan_sched_scan_results(struct wl1271 *wl)
{
wl1271_debug(DEBUG_SCAN, "got periodic scan results");
ieee80211_sched_scan_results(wl->hw);
}
void wl1271_scan_sched_scan_stop(struct wl1271 *wl)
{
struct wl1271_cmd_sched_scan_stop *stop;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd periodic scan stop");
/* FIXME: what to do if alloc'ing to stop fails? */
stop = kzalloc(sizeof(*stop), GFP_KERNEL);
if (!stop) {
wl1271_error("failed to alloc memory to send sched scan stop");
return;
}
stop->tag = WL1271_SCAN_DEFAULT_TAG;
ret = wl1271_cmd_send(wl, CMD_STOP_PERIODIC_SCAN, stop,
sizeof(*stop), 0);
if (ret < 0) {
wl1271_error("failed to send sched scan stop command");
goto out_free;
}
wl->sched_scanning = false;
out_free:
kfree(stop);
}

114
drivers/net/wireless/wl12xx/scan.h
View file

@ -33,6 +33,12 @@ int wl1271_scan_build_probe_req(struct wl1271 *wl,
const u8 *ie, size_t ie_len, u8 band);
void wl1271_scan_stm(struct wl1271 *wl);
void wl1271_scan_complete_work(struct work_struct *work);
int wl1271_scan_sched_scan_config(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct ieee80211_sched_scan_ies *ies);
int wl1271_scan_sched_scan_start(struct wl1271 *wl);
void wl1271_scan_sched_scan_stop(struct wl1271 *wl);
void wl1271_scan_sched_scan_results(struct wl1271 *wl);
#define WL1271_SCAN_MAX_CHANNELS 24
#define WL1271_SCAN_DEFAULT_TAG 1
@ -106,4 +112,112 @@ struct wl1271_cmd_trigger_scan_to {
__le32 timeout;
} __packed;
#define MAX_CHANNELS_ALL_BANDS 41
#define SCAN_MAX_CYCLE_INTERVALS 16
#define SCAN_MAX_BANDS 3
enum {
SCAN_CHANNEL_TYPE_2GHZ_PASSIVE,
SCAN_CHANNEL_TYPE_2GHZ_ACTIVE,
SCAN_CHANNEL_TYPE_5GHZ_PASSIVE,
SCAN_CHANNEL_TYPE_5GHZ_ACTIVE,
SCAN_CHANNEL_TYPE_5GHZ_DFS,
};
enum {
SCAN_SSID_FILTER_ANY = 0,
SCAN_SSID_FILTER_SPECIFIC = 1,
SCAN_SSID_FILTER_LIST = 2,
SCAN_SSID_FILTER_DISABLED = 3
};
enum {
SCAN_BSS_TYPE_INDEPENDENT,
SCAN_BSS_TYPE_INFRASTRUCTURE,
SCAN_BSS_TYPE_ANY,
};
struct conn_scan_ch_params {
__le16 min_duration;
__le16 max_duration;
__le16 passive_duration;
u8 channel;
u8 tx_power_att;
/* bit 0: DFS channel; bit 1: DFS enabled */
u8 flags;
u8 padding[3];
} __packed;
struct wl1271_cmd_sched_scan_config {
struct wl1271_cmd_header header;
__le32 intervals[SCAN_MAX_CYCLE_INTERVALS];
s8 rssi_threshold; /* for filtering (in dBm) */
s8 snr_threshold; /* for filtering (in dB) */
u8 cycles; /* maximum number of scan cycles */
u8 report_after; /* report when this number of results are received */
u8 terminate; /* stop scanning after reporting */
u8 tag;
u8 bss_type; /* for filtering */
u8 filter_type;
u8 ssid_len; /* For SCAN_SSID_FILTER_SPECIFIC */
u8 ssid[IW_ESSID_MAX_SIZE];
u8 n_probe_reqs; /* Number of probes requests per channel */
u8 passive[SCAN_MAX_BANDS];
u8 active[SCAN_MAX_BANDS];
u8 dfs;
u8 padding[3];
struct conn_scan_ch_params channels[MAX_CHANNELS_ALL_BANDS];
} __packed;
#define SCHED_SCAN_MAX_SSIDS 8
enum {
SCAN_SSID_TYPE_PUBLIC = 0,
SCAN_SSID_TYPE_HIDDEN = 1,
};
struct wl1271_ssid {
u8 type;
u8 len;
u8 ssid[IW_ESSID_MAX_SIZE];
/* u8 padding[2]; */
} __packed;
struct wl1271_cmd_sched_scan_ssid_list {
struct wl1271_cmd_header header;
u8 n_ssids;
struct wl1271_ssid ssids[SCHED_SCAN_MAX_SSIDS];
u8 padding[3];
} __packed;
struct wl1271_cmd_sched_scan_start {
struct wl1271_cmd_header header;
u8 tag;
u8 padding[3];
} __packed;
struct wl1271_cmd_sched_scan_stop {
struct wl1271_cmd_header header;
u8 tag;
u8 padding[3];
} __packed;
#endif /* __WL1271_SCAN_H__ */

64
drivers/net/wireless/wl12xx/sdio.c
View file

@ -82,6 +82,16 @@ static irqreturn_t wl1271_hardirq(int irq, void *cookie)
complete(wl->elp_compl);
wl->elp_compl = NULL;
}
if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
/* don't enqueue a work right now. mark it as pending */
set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
wl1271_debug(DEBUG_IRQ, "should not enqueue work");
disable_irq_nosync(wl->irq);
pm_wakeup_event(wl1271_sdio_wl_to_dev(wl), 0);
spin_unlock_irqrestore(&wl->wl_lock, flags);
return IRQ_HANDLED;
}
spin_unlock_irqrestore(&wl->wl_lock, flags);
return IRQ_WAKE_THREAD;
@ -221,6 +231,7 @@ static int __devinit wl1271_probe(struct sdio_func *func,
const struct wl12xx_platform_data *wlan_data;
struct wl1271 *wl;
unsigned long irqflags;
mmc_pm_flag_t mmcflags;
int ret;
/* We are only able to handle the wlan function */
@ -267,8 +278,18 @@ static int __devinit wl1271_probe(struct sdio_func *func,
goto out_free;
}
enable_irq_wake(wl->irq);
device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);
disable_irq(wl->irq);
/* if sdio can keep power while host is suspended, enable wow */
mmcflags = sdio_get_host_pm_caps(func);
wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags);
if (mmcflags & MMC_PM_KEEP_POWER)
hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
ret = wl1271_init_ieee80211(wl);
if (ret)
goto out_irq;
@ -303,6 +324,8 @@ static void __devexit wl1271_remove(struct sdio_func *func)
pm_runtime_get_noresume(&func->dev);
wl1271_unregister_hw(wl);
device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0);
disable_irq_wake(wl->irq);
free_irq(wl->irq, wl);
wl1271_free_hw(wl);
}
@ -311,11 +334,50 @@ static int wl1271_suspend(struct device *dev)
{
/* Tell MMC/SDIO core it's OK to power down the card
* (if it isn't already), but not to remove it completely */
return 0;
struct sdio_func *func = dev_to_sdio_func(dev);
struct wl1271 *wl = sdio_get_drvdata(func);
mmc_pm_flag_t sdio_flags;
int ret = 0;
wl1271_debug(DEBUG_MAC80211, "wl1271 suspend. wow_enabled: %d",
wl->wow_enabled);
/* check whether sdio should keep power */
if (wl->wow_enabled) {
sdio_flags = sdio_get_host_pm_caps(func);
if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
wl1271_error("can't keep power while host "
"is suspended");
ret = -EINVAL;
goto out;
}
/* keep power while host suspended */
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
if (ret) {
wl1271_error("error while trying to keep power");
goto out;
}
/* release host */
sdio_release_host(func);
}
out:
return ret;
}
static int wl1271_resume(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
struct wl1271 *wl = sdio_get_drvdata(func);
wl1271_debug(DEBUG_MAC80211, "wl1271 resume");
if (wl->wow_enabled) {
/* claim back host */
sdio_claim_host(func);
}
return 0;
}

12
drivers/net/wireless/wl12xx/wl12xx.h
View file

@ -351,13 +351,14 @@ enum wl12xx_flags {
WL1271_FLAG_PSM_REQUESTED,
WL1271_FLAG_IRQ_RUNNING,
WL1271_FLAG_IDLE,
WL1271_FLAG_IDLE_REQUESTED,
WL1271_FLAG_PSPOLL_FAILURE,
WL1271_FLAG_STA_STATE_SENT,
WL1271_FLAG_FW_TX_BUSY,
WL1271_FLAG_AP_STARTED,
WL1271_FLAG_IF_INITIALIZED,
WL1271_FLAG_DUMMY_PACKET_PENDING,
WL1271_FLAG_SUSPENDED,
WL1271_FLAG_PENDING_WORK,
};
struct wl1271_link {
@ -480,6 +481,8 @@ struct wl1271 {
struct wl1271_scan scan;
struct delayed_work scan_complete_work;
bool sched_scanning;
/* probe-req template for the current AP */
struct sk_buff *probereq;
@ -510,6 +513,7 @@ struct wl1271 {
unsigned int rx_filter;
struct completion *elp_compl;
struct completion *ps_compl;
struct delayed_work elp_work;
struct delayed_work pspoll_work;
@ -563,6 +567,12 @@ struct wl1271 {
int tcxo_clock;
/*
* wowlan trigger was configured during suspend.
* (currently, only "ANY" trigger is supported)
*/
bool wow_enabled;
/*
* AP-mode - links indexed by HLID. The global and broadcast links
* are always active.