3 * This file is part of wl1271
5 * Copyright (C) 2008-2010 Nokia Corporation
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
25 #include <linux/module.h>
26 #include <linux/firmware.h>
27 #include <linux/delay.h>
28 #include <linux/spi/spi.h>
29 #include <linux/crc32.h>
30 #include <linux/etherdevice.h>
31 #include <linux/vmalloc.h>
32 #include <linux/platform_device.h>
33 #include <linux/slab.h>
34 #include <linux/wl12xx.h>
35 #include <linux/sched.h>
36 #include <linux/interrupt.h>
40 #include "wl12xx_80211.h"
54 #define WL1271_BOOT_RETRIES 3
56 #define WL1271_BOOT_RETRIES 3
58 static char *fwlog_param;
59 static int bug_on_recovery = -1;
60 static int no_recovery = -1;
62 static void __wl1271_op_remove_interface(struct wl1271 *wl,
63 struct ieee80211_vif *vif,
64 bool reset_tx_queues);
65 static void wlcore_op_stop_locked(struct wl1271 *wl);
66 static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif);
68 static int wl12xx_set_authorized(struct wl1271 *wl,
69 struct wl12xx_vif *wlvif)
73 if (WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS))
76 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
79 if (test_and_set_bit(WLVIF_FLAG_STA_STATE_SENT, &wlvif->flags))
82 ret = wl12xx_cmd_set_peer_state(wl, wlvif, wlvif->sta.hlid);
86 wl1271_info("Association completed.");
90 static void wl1271_reg_notify(struct wiphy *wiphy,
91 struct regulatory_request *request)
93 struct ieee80211_supported_band *band;
94 struct ieee80211_channel *ch;
96 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
97 struct wl1271 *wl = hw->priv;
99 band = wiphy->bands[IEEE80211_BAND_5GHZ];
100 for (i = 0; i < band->n_channels; i++) {
101 ch = &band->channels[i];
102 if (ch->flags & IEEE80211_CHAN_DISABLED)
105 if (ch->flags & IEEE80211_CHAN_RADAR)
106 ch->flags |= IEEE80211_CHAN_NO_IBSS |
107 IEEE80211_CHAN_PASSIVE_SCAN;
111 if (likely(wl->state == WLCORE_STATE_ON))
112 wlcore_regdomain_config(wl);
115 static int wl1271_set_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif,
120 /* we should hold wl->mutex */
121 ret = wl1271_acx_ps_rx_streaming(wl, wlvif, enable);
126 set_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags);
128 clear_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags);
134 * this function is being called when the rx_streaming interval
135 * has beed changed or rx_streaming should be disabled
137 int wl1271_recalc_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif)
140 int period = wl->conf.rx_streaming.interval;
142 /* don't reconfigure if rx_streaming is disabled */
143 if (!test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags))
146 /* reconfigure/disable according to new streaming_period */
148 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
149 (wl->conf.rx_streaming.always ||
150 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
151 ret = wl1271_set_rx_streaming(wl, wlvif, true);
153 ret = wl1271_set_rx_streaming(wl, wlvif, false);
154 /* don't cancel_work_sync since we might deadlock */
155 del_timer_sync(&wlvif->rx_streaming_timer);
161 static void wl1271_rx_streaming_enable_work(struct work_struct *work)
164 struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif,
165 rx_streaming_enable_work);
166 struct wl1271 *wl = wlvif->wl;
168 mutex_lock(&wl->mutex);
170 if (test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags) ||
171 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
172 (!wl->conf.rx_streaming.always &&
173 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
176 if (!wl->conf.rx_streaming.interval)
179 ret = wl1271_ps_elp_wakeup(wl);
183 ret = wl1271_set_rx_streaming(wl, wlvif, true);
187 /* stop it after some time of inactivity */
188 mod_timer(&wlvif->rx_streaming_timer,
189 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
192 wl1271_ps_elp_sleep(wl);
194 mutex_unlock(&wl->mutex);
197 static void wl1271_rx_streaming_disable_work(struct work_struct *work)
200 struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif,
201 rx_streaming_disable_work);
202 struct wl1271 *wl = wlvif->wl;
204 mutex_lock(&wl->mutex);
206 if (!test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags))
209 ret = wl1271_ps_elp_wakeup(wl);
213 ret = wl1271_set_rx_streaming(wl, wlvif, false);
218 wl1271_ps_elp_sleep(wl);
220 mutex_unlock(&wl->mutex);
223 static void wl1271_rx_streaming_timer(unsigned long data)
225 struct wl12xx_vif *wlvif = (struct wl12xx_vif *)data;
226 struct wl1271 *wl = wlvif->wl;
227 ieee80211_queue_work(wl->hw, &wlvif->rx_streaming_disable_work);
230 /* wl->mutex must be taken */
231 void wl12xx_rearm_tx_watchdog_locked(struct wl1271 *wl)
233 /* if the watchdog is not armed, don't do anything */
234 if (wl->tx_allocated_blocks == 0)
237 cancel_delayed_work(&wl->tx_watchdog_work);
238 ieee80211_queue_delayed_work(wl->hw, &wl->tx_watchdog_work,
239 msecs_to_jiffies(wl->conf.tx.tx_watchdog_timeout));
242 static void wl12xx_tx_watchdog_work(struct work_struct *work)
244 struct delayed_work *dwork;
247 dwork = container_of(work, struct delayed_work, work);
248 wl = container_of(dwork, struct wl1271, tx_watchdog_work);
250 mutex_lock(&wl->mutex);
252 if (unlikely(wl->state != WLCORE_STATE_ON))
255 /* Tx went out in the meantime - everything is ok */
256 if (unlikely(wl->tx_allocated_blocks == 0))
260 * if a ROC is in progress, we might not have any Tx for a long
261 * time (e.g. pending Tx on the non-ROC channels)
263 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
264 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms due to ROC",
265 wl->conf.tx.tx_watchdog_timeout);
266 wl12xx_rearm_tx_watchdog_locked(wl);
271 * if a scan is in progress, we might not have any Tx for a long
274 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
275 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms due to scan",
276 wl->conf.tx.tx_watchdog_timeout);
277 wl12xx_rearm_tx_watchdog_locked(wl);
282 * AP might cache a frame for a long time for a sleeping station,
283 * so rearm the timer if there's an AP interface with stations. If
284 * Tx is genuinely stuck we will most hopefully discover it when all
285 * stations are removed due to inactivity.
287 if (wl->active_sta_count) {
288 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms. AP has "
290 wl->conf.tx.tx_watchdog_timeout,
291 wl->active_sta_count);
292 wl12xx_rearm_tx_watchdog_locked(wl);
296 wl1271_error("Tx stuck (in FW) for %d ms. Starting recovery",
297 wl->conf.tx.tx_watchdog_timeout);
298 wl12xx_queue_recovery_work(wl);
301 mutex_unlock(&wl->mutex);
304 static void wlcore_adjust_conf(struct wl1271 *wl)
306 /* Adjust settings according to optional module parameters */
309 if (!strcmp(fwlog_param, "continuous")) {
310 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
311 } else if (!strcmp(fwlog_param, "ondemand")) {
312 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
313 } else if (!strcmp(fwlog_param, "dbgpins")) {
314 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
315 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
316 } else if (!strcmp(fwlog_param, "disable")) {
317 wl->conf.fwlog.mem_blocks = 0;
318 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
320 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
324 if (bug_on_recovery != -1)
325 wl->conf.recovery.bug_on_recovery = (u8) bug_on_recovery;
327 if (no_recovery != -1)
328 wl->conf.recovery.no_recovery = (u8) no_recovery;
331 static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl,
332 struct wl12xx_vif *wlvif,
335 bool fw_ps, single_link;
337 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
338 single_link = (wl->active_link_count == 1);
341 * Wake up from high level PS if the STA is asleep with too little
342 * packets in FW or if the STA is awake.
344 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
345 wl12xx_ps_link_end(wl, wlvif, hlid);
348 * Start high-level PS if the STA is asleep with enough blocks in FW.
349 * Make an exception if this is the only connected link. In this
350 * case FW-memory congestion is less of a problem.
352 else if (!single_link && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
353 wl12xx_ps_link_start(wl, wlvif, hlid, true);
356 static void wl12xx_irq_update_links_status(struct wl1271 *wl,
357 struct wl12xx_vif *wlvif,
358 struct wl_fw_status_2 *status)
363 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
364 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
365 wl1271_debug(DEBUG_PSM,
366 "link ps prev 0x%x cur 0x%x changed 0x%x",
367 wl->ap_fw_ps_map, cur_fw_ps_map,
368 wl->ap_fw_ps_map ^ cur_fw_ps_map);
370 wl->ap_fw_ps_map = cur_fw_ps_map;
373 for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, WL12XX_MAX_LINKS)
374 wl12xx_irq_ps_regulate_link(wl, wlvif, hlid,
375 wl->links[hlid].allocated_pkts);
378 static int wlcore_fw_status(struct wl1271 *wl,
379 struct wl_fw_status_1 *status_1,
380 struct wl_fw_status_2 *status_2)
382 struct wl12xx_vif *wlvif;
384 u32 old_tx_blk_count = wl->tx_blocks_available;
385 int avail, freed_blocks;
389 struct wl1271_link *lnk;
391 status_len = WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
392 sizeof(*status_2) + wl->fw_status_priv_len;
394 ret = wlcore_raw_read_data(wl, REG_RAW_FW_STATUS_ADDR, status_1,
399 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
400 "drv_rx_counter = %d, tx_results_counter = %d)",
402 status_1->fw_rx_counter,
403 status_1->drv_rx_counter,
404 status_1->tx_results_counter);
406 for (i = 0; i < NUM_TX_QUEUES; i++) {
407 /* prevent wrap-around in freed-packets counter */
408 wl->tx_allocated_pkts[i] -=
409 (status_2->counters.tx_released_pkts[i] -
410 wl->tx_pkts_freed[i]) & 0xff;
412 wl->tx_pkts_freed[i] = status_2->counters.tx_released_pkts[i];
416 for_each_set_bit(i, wl->links_map, WL12XX_MAX_LINKS) {
418 /* prevent wrap-around in freed-packets counter */
419 lnk->allocated_pkts -=
420 (status_2->counters.tx_lnk_free_pkts[i] -
421 lnk->prev_freed_pkts) & 0xff;
423 lnk->prev_freed_pkts = status_2->counters.tx_lnk_free_pkts[i];
426 /* prevent wrap-around in total blocks counter */
427 if (likely(wl->tx_blocks_freed <=
428 le32_to_cpu(status_2->total_released_blks)))
429 freed_blocks = le32_to_cpu(status_2->total_released_blks) -
432 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
433 le32_to_cpu(status_2->total_released_blks);
435 wl->tx_blocks_freed = le32_to_cpu(status_2->total_released_blks);
437 wl->tx_allocated_blocks -= freed_blocks;
440 * If the FW freed some blocks:
441 * If we still have allocated blocks - re-arm the timer, Tx is
442 * not stuck. Otherwise, cancel the timer (no Tx currently).
445 if (wl->tx_allocated_blocks)
446 wl12xx_rearm_tx_watchdog_locked(wl);
448 cancel_delayed_work(&wl->tx_watchdog_work);
451 avail = le32_to_cpu(status_2->tx_total) - wl->tx_allocated_blocks;
454 * The FW might change the total number of TX memblocks before
455 * we get a notification about blocks being released. Thus, the
456 * available blocks calculation might yield a temporary result
457 * which is lower than the actual available blocks. Keeping in
458 * mind that only blocks that were allocated can be moved from
459 * TX to RX, tx_blocks_available should never decrease here.
461 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
464 /* if more blocks are available now, tx work can be scheduled */
465 if (wl->tx_blocks_available > old_tx_blk_count)
466 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
468 /* for AP update num of allocated TX blocks per link and ps status */
469 wl12xx_for_each_wlvif_ap(wl, wlvif) {
470 wl12xx_irq_update_links_status(wl, wlvif, status_2);
473 /* update the host-chipset time offset */
475 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
476 (s64)le32_to_cpu(status_2->fw_localtime);
478 wl->fw_fast_lnk_map = le32_to_cpu(status_2->link_fast_bitmap);
483 static void wl1271_flush_deferred_work(struct wl1271 *wl)
487 /* Pass all received frames to the network stack */
488 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
489 ieee80211_rx_ni(wl->hw, skb);
491 /* Return sent skbs to the network stack */
492 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
493 ieee80211_tx_status_ni(wl->hw, skb);
496 static void wl1271_netstack_work(struct work_struct *work)
499 container_of(work, struct wl1271, netstack_work);
502 wl1271_flush_deferred_work(wl);
503 } while (skb_queue_len(&wl->deferred_rx_queue));
506 #define WL1271_IRQ_MAX_LOOPS 256
508 static int wlcore_irq_locked(struct wl1271 *wl)
512 int loopcount = WL1271_IRQ_MAX_LOOPS;
514 unsigned int defer_count;
518 * In case edge triggered interrupt must be used, we cannot iterate
519 * more than once without introducing race conditions with the hardirq.
521 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
524 wl1271_debug(DEBUG_IRQ, "IRQ work");
526 if (unlikely(wl->state != WLCORE_STATE_ON))
529 ret = wl1271_ps_elp_wakeup(wl);
533 while (!done && loopcount--) {
535 * In order to avoid a race with the hardirq, clear the flag
536 * before acknowledging the chip. Since the mutex is held,
537 * wl1271_ps_elp_wakeup cannot be called concurrently.
539 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
540 smp_mb__after_clear_bit();
542 ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
546 wlcore_hw_tx_immediate_compl(wl);
548 intr = le32_to_cpu(wl->fw_status_1->intr);
549 intr &= WLCORE_ALL_INTR_MASK;
555 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
556 wl1271_error("HW watchdog interrupt received! starting recovery.");
557 wl->watchdog_recovery = true;
560 /* restarting the chip. ignore any other interrupt. */
564 if (unlikely(intr & WL1271_ACX_SW_INTR_WATCHDOG)) {
565 wl1271_error("SW watchdog interrupt received! "
566 "starting recovery.");
567 wl->watchdog_recovery = true;
570 /* restarting the chip. ignore any other interrupt. */
574 if (likely(intr & WL1271_ACX_INTR_DATA)) {
575 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
577 ret = wlcore_rx(wl, wl->fw_status_1);
581 /* Check if any tx blocks were freed */
582 spin_lock_irqsave(&wl->wl_lock, flags);
583 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
584 wl1271_tx_total_queue_count(wl) > 0) {
585 spin_unlock_irqrestore(&wl->wl_lock, flags);
587 * In order to avoid starvation of the TX path,
588 * call the work function directly.
590 ret = wlcore_tx_work_locked(wl);
594 spin_unlock_irqrestore(&wl->wl_lock, flags);
597 /* check for tx results */
598 ret = wlcore_hw_tx_delayed_compl(wl);
602 /* Make sure the deferred queues don't get too long */
603 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
604 skb_queue_len(&wl->deferred_rx_queue);
605 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
606 wl1271_flush_deferred_work(wl);
609 if (intr & WL1271_ACX_INTR_EVENT_A) {
610 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
611 ret = wl1271_event_handle(wl, 0);
616 if (intr & WL1271_ACX_INTR_EVENT_B) {
617 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
618 ret = wl1271_event_handle(wl, 1);
623 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
624 wl1271_debug(DEBUG_IRQ,
625 "WL1271_ACX_INTR_INIT_COMPLETE");
627 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
628 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
631 wl1271_ps_elp_sleep(wl);
637 static irqreturn_t wlcore_irq(int irq, void *cookie)
641 struct wl1271 *wl = cookie;
643 /* TX might be handled here, avoid redundant work */
644 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
645 cancel_work_sync(&wl->tx_work);
647 mutex_lock(&wl->mutex);
649 ret = wlcore_irq_locked(wl);
651 wl12xx_queue_recovery_work(wl);
653 spin_lock_irqsave(&wl->wl_lock, flags);
654 /* In case TX was not handled here, queue TX work */
655 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
656 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
657 wl1271_tx_total_queue_count(wl) > 0)
658 ieee80211_queue_work(wl->hw, &wl->tx_work);
659 spin_unlock_irqrestore(&wl->wl_lock, flags);
661 mutex_unlock(&wl->mutex);
666 struct vif_counter_data {
669 struct ieee80211_vif *cur_vif;
670 bool cur_vif_running;
673 static void wl12xx_vif_count_iter(void *data, u8 *mac,
674 struct ieee80211_vif *vif)
676 struct vif_counter_data *counter = data;
679 if (counter->cur_vif == vif)
680 counter->cur_vif_running = true;
683 /* caller must not hold wl->mutex, as it might deadlock */
684 static void wl12xx_get_vif_count(struct ieee80211_hw *hw,
685 struct ieee80211_vif *cur_vif,
686 struct vif_counter_data *data)
688 memset(data, 0, sizeof(*data));
689 data->cur_vif = cur_vif;
691 ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL,
692 wl12xx_vif_count_iter, data);
695 static int wl12xx_fetch_firmware(struct wl1271 *wl, bool plt)
697 const struct firmware *fw;
699 enum wl12xx_fw_type fw_type;
703 fw_type = WL12XX_FW_TYPE_PLT;
704 fw_name = wl->plt_fw_name;
707 * we can't call wl12xx_get_vif_count() here because
708 * wl->mutex is taken, so use the cached last_vif_count value
710 if (wl->last_vif_count > 1 && wl->mr_fw_name) {
711 fw_type = WL12XX_FW_TYPE_MULTI;
712 fw_name = wl->mr_fw_name;
714 fw_type = WL12XX_FW_TYPE_NORMAL;
715 fw_name = wl->sr_fw_name;
719 if (wl->fw_type == fw_type)
722 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
724 ret = request_firmware(&fw, fw_name, wl->dev);
727 wl1271_error("could not get firmware %s: %d", fw_name, ret);
732 wl1271_error("firmware size is not multiple of 32 bits: %zu",
739 wl->fw_type = WL12XX_FW_TYPE_NONE;
740 wl->fw_len = fw->size;
741 wl->fw = vmalloc(wl->fw_len);
744 wl1271_error("could not allocate memory for the firmware");
749 memcpy(wl->fw, fw->data, wl->fw_len);
751 wl->fw_type = fw_type;
753 release_firmware(fw);
758 void wl12xx_queue_recovery_work(struct wl1271 *wl)
760 WARN_ON(!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
762 /* Avoid a recursive recovery */
763 if (wl->state == WLCORE_STATE_ON) {
764 wl->state = WLCORE_STATE_RESTARTING;
765 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
766 wlcore_disable_interrupts_nosync(wl);
767 ieee80211_queue_work(wl->hw, &wl->recovery_work);
771 size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
775 /* The FW log is a length-value list, find where the log end */
776 while (len < maxlen) {
777 if (memblock[len] == 0)
779 if (len + memblock[len] + 1 > maxlen)
781 len += memblock[len] + 1;
784 /* Make sure we have enough room */
785 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
787 /* Fill the FW log file, consumed by the sysfs fwlog entry */
788 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
789 wl->fwlog_size += len;
794 #define WLCORE_FW_LOG_END 0x2000000
796 static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
804 if ((wl->quirks & WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
805 (wl->conf.fwlog.mem_blocks == 0))
808 wl1271_info("Reading FW panic log");
810 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
815 * Make sure the chip is awake and the logger isn't active.
816 * Do not send a stop fwlog command if the fw is hanged or if
817 * dbgpins are used (due to some fw bug).
819 if (wl1271_ps_elp_wakeup(wl))
821 if (!wl->watchdog_recovery &&
822 wl->conf.fwlog.output != WL12XX_FWLOG_OUTPUT_DBG_PINS)
823 wl12xx_cmd_stop_fwlog(wl);
825 /* Read the first memory block address */
826 ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
830 addr = le32_to_cpu(wl->fw_status_2->log_start_addr);
834 if (wl->conf.fwlog.mode == WL12XX_FWLOG_CONTINUOUS) {
835 offset = sizeof(addr) + sizeof(struct wl1271_rx_descriptor);
836 end_of_log = WLCORE_FW_LOG_END;
838 offset = sizeof(addr);
842 /* Traverse the memory blocks linked list */
844 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
845 ret = wlcore_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
851 * Memory blocks are linked to one another. The first 4 bytes
852 * of each memory block hold the hardware address of the next
853 * one. The last memory block points to the first one in
854 * on demand mode and is equal to 0x2000000 in continuous mode.
856 addr = le32_to_cpup((__le32 *)block);
857 if (!wl12xx_copy_fwlog(wl, block + offset,
858 WL12XX_HW_BLOCK_SIZE - offset))
860 } while (addr && (addr != end_of_log));
862 wake_up_interruptible(&wl->fwlog_waitq);
868 static void wlcore_print_recovery(struct wl1271 *wl)
874 wl1271_info("Hardware recovery in progress. FW ver: %s",
875 wl->chip.fw_ver_str);
877 /* change partitions momentarily so we can read the FW pc */
878 ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]);
882 ret = wlcore_read_reg(wl, REG_PC_ON_RECOVERY, &pc);
886 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &hint_sts);
890 wl1271_info("pc: 0x%x, hint_sts: 0x%08x count: %d",
891 pc, hint_sts, ++wl->recovery_count);
893 wlcore_set_partition(wl, &wl->ptable[PART_WORK]);
897 static void wl1271_recovery_work(struct work_struct *work)
900 container_of(work, struct wl1271, recovery_work);
901 struct wl12xx_vif *wlvif;
902 struct ieee80211_vif *vif;
904 mutex_lock(&wl->mutex);
906 if (wl->state == WLCORE_STATE_OFF || wl->plt)
909 if (!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags)) {
910 wl12xx_read_fwlog_panic(wl);
911 wlcore_print_recovery(wl);
914 BUG_ON(wl->conf.recovery.bug_on_recovery &&
915 !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
917 if (wl->conf.recovery.no_recovery) {
918 wl1271_info("No recovery (chosen on module load). Fw will remain stuck.");
923 * Advance security sequence number to overcome potential progress
924 * in the firmware during recovery. This doens't hurt if the network is
927 wl12xx_for_each_wlvif(wl, wlvif) {
928 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
929 test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags))
930 wlvif->tx_security_seq +=
931 WL1271_TX_SQN_POST_RECOVERY_PADDING;
934 /* Prevent spurious TX during FW restart */
935 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_FW_RESTART);
937 /* reboot the chipset */
938 while (!list_empty(&wl->wlvif_list)) {
939 wlvif = list_first_entry(&wl->wlvif_list,
940 struct wl12xx_vif, list);
941 vif = wl12xx_wlvif_to_vif(wlvif);
942 __wl1271_op_remove_interface(wl, vif, false);
945 wlcore_op_stop_locked(wl);
947 ieee80211_restart_hw(wl->hw);
950 * Its safe to enable TX now - the queues are stopped after a request
953 wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_FW_RESTART);
956 wl->watchdog_recovery = false;
957 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
958 mutex_unlock(&wl->mutex);
961 static int wlcore_fw_wakeup(struct wl1271 *wl)
963 return wlcore_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG, ELPCTRL_WAKE_UP);
966 static int wl1271_setup(struct wl1271 *wl)
968 wl->fw_status_1 = kmalloc(WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
969 sizeof(*wl->fw_status_2) +
970 wl->fw_status_priv_len, GFP_KERNEL);
971 if (!wl->fw_status_1)
974 wl->fw_status_2 = (struct wl_fw_status_2 *)
975 (((u8 *) wl->fw_status_1) +
976 WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc));
978 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
979 if (!wl->tx_res_if) {
980 kfree(wl->fw_status_1);
987 static int wl12xx_set_power_on(struct wl1271 *wl)
991 msleep(WL1271_PRE_POWER_ON_SLEEP);
992 ret = wl1271_power_on(wl);
995 msleep(WL1271_POWER_ON_SLEEP);
999 ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]);
1003 /* ELP module wake up */
1004 ret = wlcore_fw_wakeup(wl);
1012 wl1271_power_off(wl);
1016 static int wl12xx_chip_wakeup(struct wl1271 *wl, bool plt)
1020 ret = wl12xx_set_power_on(wl);
1025 * For wl127x based devices we could use the default block
1026 * size (512 bytes), but due to a bug in the sdio driver, we
1027 * need to set it explicitly after the chip is powered on. To
1028 * simplify the code and since the performance impact is
1029 * negligible, we use the same block size for all different
1032 * Check if the bus supports blocksize alignment and, if it
1033 * doesn't, make sure we don't have the quirk.
1035 if (!wl1271_set_block_size(wl))
1036 wl->quirks &= ~WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN;
1038 /* TODO: make sure the lower driver has set things up correctly */
1040 ret = wl1271_setup(wl);
1044 ret = wl12xx_fetch_firmware(wl, plt);
1052 int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode)
1054 int retries = WL1271_BOOT_RETRIES;
1055 struct wiphy *wiphy = wl->hw->wiphy;
1057 static const char* const PLT_MODE[] = {
1065 mutex_lock(&wl->mutex);
1067 wl1271_notice("power up");
1069 if (wl->state != WLCORE_STATE_OFF) {
1070 wl1271_error("cannot go into PLT state because not "
1071 "in off state: %d", wl->state);
1076 /* Indicate to lower levels that we are now in PLT mode */
1078 wl->plt_mode = plt_mode;
1082 ret = wl12xx_chip_wakeup(wl, true);
1086 ret = wl->ops->plt_init(wl);
1090 wl->state = WLCORE_STATE_ON;
1091 wl1271_notice("firmware booted in PLT mode %s (%s)",
1093 wl->chip.fw_ver_str);
1095 /* update hw/fw version info in wiphy struct */
1096 wiphy->hw_version = wl->chip.id;
1097 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
1098 sizeof(wiphy->fw_version));
1103 wl1271_power_off(wl);
1107 wl->plt_mode = PLT_OFF;
1109 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1110 WL1271_BOOT_RETRIES);
1112 mutex_unlock(&wl->mutex);
1117 int wl1271_plt_stop(struct wl1271 *wl)
1121 wl1271_notice("power down");
1124 * Interrupts must be disabled before setting the state to OFF.
1125 * Otherwise, the interrupt handler might be called and exit without
1126 * reading the interrupt status.
1128 wlcore_disable_interrupts(wl);
1129 mutex_lock(&wl->mutex);
1131 mutex_unlock(&wl->mutex);
1134 * This will not necessarily enable interrupts as interrupts
1135 * may have been disabled when op_stop was called. It will,
1136 * however, balance the above call to disable_interrupts().
1138 wlcore_enable_interrupts(wl);
1140 wl1271_error("cannot power down because not in PLT "
1141 "state: %d", wl->state);
1146 mutex_unlock(&wl->mutex);
1148 wl1271_flush_deferred_work(wl);
1149 cancel_work_sync(&wl->netstack_work);
1150 cancel_work_sync(&wl->recovery_work);
1151 cancel_delayed_work_sync(&wl->elp_work);
1152 cancel_delayed_work_sync(&wl->tx_watchdog_work);
1154 mutex_lock(&wl->mutex);
1155 wl1271_power_off(wl);
1157 wl->sleep_auth = WL1271_PSM_ILLEGAL;
1158 wl->state = WLCORE_STATE_OFF;
1160 wl->plt_mode = PLT_OFF;
1162 mutex_unlock(&wl->mutex);
1168 static void wl1271_op_tx(struct ieee80211_hw *hw,
1169 struct ieee80211_tx_control *control,
1170 struct sk_buff *skb)
1172 struct wl1271 *wl = hw->priv;
1173 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1174 struct ieee80211_vif *vif = info->control.vif;
1175 struct wl12xx_vif *wlvif = NULL;
1176 unsigned long flags;
1181 wl1271_debug(DEBUG_TX, "DROP skb with no vif");
1182 ieee80211_free_txskb(hw, skb);
1186 wlvif = wl12xx_vif_to_data(vif);
1187 mapping = skb_get_queue_mapping(skb);
1188 q = wl1271_tx_get_queue(mapping);
1190 hlid = wl12xx_tx_get_hlid(wl, wlvif, skb, control->sta);
1192 spin_lock_irqsave(&wl->wl_lock, flags);
1195 * drop the packet if the link is invalid or the queue is stopped
1196 * for any reason but watermark. Watermark is a "soft"-stop so we
1197 * allow these packets through.
1199 if (hlid == WL12XX_INVALID_LINK_ID ||
1200 (!test_bit(hlid, wlvif->links_map)) ||
1201 (wlcore_is_queue_stopped_locked(wl, wlvif, q) &&
1202 !wlcore_is_queue_stopped_by_reason_locked(wl, wlvif, q,
1203 WLCORE_QUEUE_STOP_REASON_WATERMARK))) {
1204 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d", hlid, q);
1205 ieee80211_free_txskb(hw, skb);
1209 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d len %d",
1211 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1213 wl->tx_queue_count[q]++;
1214 wlvif->tx_queue_count[q]++;
1217 * The workqueue is slow to process the tx_queue and we need stop
1218 * the queue here, otherwise the queue will get too long.
1220 if (wlvif->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK &&
1221 !wlcore_is_queue_stopped_by_reason_locked(wl, wlvif, q,
1222 WLCORE_QUEUE_STOP_REASON_WATERMARK)) {
1223 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
1224 wlcore_stop_queue_locked(wl, wlvif, q,
1225 WLCORE_QUEUE_STOP_REASON_WATERMARK);
1229 * The chip specific setup must run before the first TX packet -
1230 * before that, the tx_work will not be initialized!
1233 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1234 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
1235 ieee80211_queue_work(wl->hw, &wl->tx_work);
1238 spin_unlock_irqrestore(&wl->wl_lock, flags);
1241 int wl1271_tx_dummy_packet(struct wl1271 *wl)
1243 unsigned long flags;
1246 /* no need to queue a new dummy packet if one is already pending */
1247 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1250 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
1252 spin_lock_irqsave(&wl->wl_lock, flags);
1253 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
1254 wl->tx_queue_count[q]++;
1255 spin_unlock_irqrestore(&wl->wl_lock, flags);
1257 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1258 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
1259 return wlcore_tx_work_locked(wl);
1262 * If the FW TX is busy, TX work will be scheduled by the threaded
1263 * interrupt handler function
1269 * The size of the dummy packet should be at least 1400 bytes. However, in
1270 * order to minimize the number of bus transactions, aligning it to 512 bytes
1271 * boundaries could be beneficial, performance wise
1273 #define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1275 static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
1277 struct sk_buff *skb;
1278 struct ieee80211_hdr_3addr *hdr;
1279 unsigned int dummy_packet_size;
1281 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1282 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
1284 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
1286 wl1271_warning("Failed to allocate a dummy packet skb");
1290 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1292 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1293 memset(hdr, 0, sizeof(*hdr));
1294 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1295 IEEE80211_STYPE_NULLFUNC |
1296 IEEE80211_FCTL_TODS);
1298 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
1300 /* Dummy packets require the TID to be management */
1301 skb->priority = WL1271_TID_MGMT;
1303 /* Initialize all fields that might be used */
1304 skb_set_queue_mapping(skb, 0);
1305 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
1313 wl1271_validate_wowlan_pattern(struct cfg80211_wowlan_trig_pkt_pattern *p)
1315 int num_fields = 0, in_field = 0, fields_size = 0;
1316 int i, pattern_len = 0;
1319 wl1271_warning("No mask in WoWLAN pattern");
1324 * The pattern is broken up into segments of bytes at different offsets
1325 * that need to be checked by the FW filter. Each segment is called
1326 * a field in the FW API. We verify that the total number of fields
1327 * required for this pattern won't exceed FW limits (8)
1328 * as well as the total fields buffer won't exceed the FW limit.
1329 * Note that if there's a pattern which crosses Ethernet/IP header
1330 * boundary a new field is required.
1332 for (i = 0; i < p->pattern_len; i++) {
1333 if (test_bit(i, (unsigned long *)p->mask)) {
1338 if (i == WL1271_RX_FILTER_ETH_HEADER_SIZE) {
1340 fields_size += pattern_len +
1341 RX_FILTER_FIELD_OVERHEAD;
1349 fields_size += pattern_len +
1350 RX_FILTER_FIELD_OVERHEAD;
1357 fields_size += pattern_len + RX_FILTER_FIELD_OVERHEAD;
1361 if (num_fields > WL1271_RX_FILTER_MAX_FIELDS) {
1362 wl1271_warning("RX Filter too complex. Too many segments");
1366 if (fields_size > WL1271_RX_FILTER_MAX_FIELDS_SIZE) {
1367 wl1271_warning("RX filter pattern is too big");
1374 struct wl12xx_rx_filter *wl1271_rx_filter_alloc(void)
1376 return kzalloc(sizeof(struct wl12xx_rx_filter), GFP_KERNEL);
1379 void wl1271_rx_filter_free(struct wl12xx_rx_filter *filter)
1386 for (i = 0; i < filter->num_fields; i++)
1387 kfree(filter->fields[i].pattern);
1392 int wl1271_rx_filter_alloc_field(struct wl12xx_rx_filter *filter,
1393 u16 offset, u8 flags,
1394 u8 *pattern, u8 len)
1396 struct wl12xx_rx_filter_field *field;
1398 if (filter->num_fields == WL1271_RX_FILTER_MAX_FIELDS) {
1399 wl1271_warning("Max fields per RX filter. can't alloc another");
1403 field = &filter->fields[filter->num_fields];
1405 field->pattern = kzalloc(len, GFP_KERNEL);
1406 if (!field->pattern) {
1407 wl1271_warning("Failed to allocate RX filter pattern");
1411 filter->num_fields++;
1413 field->offset = cpu_to_le16(offset);
1414 field->flags = flags;
1416 memcpy(field->pattern, pattern, len);
1421 int wl1271_rx_filter_get_fields_size(struct wl12xx_rx_filter *filter)
1423 int i, fields_size = 0;
1425 for (i = 0; i < filter->num_fields; i++)
1426 fields_size += filter->fields[i].len +
1427 sizeof(struct wl12xx_rx_filter_field) -
1433 void wl1271_rx_filter_flatten_fields(struct wl12xx_rx_filter *filter,
1437 struct wl12xx_rx_filter_field *field;
1439 for (i = 0; i < filter->num_fields; i++) {
1440 field = (struct wl12xx_rx_filter_field *)buf;
1442 field->offset = filter->fields[i].offset;
1443 field->flags = filter->fields[i].flags;
1444 field->len = filter->fields[i].len;
1446 memcpy(&field->pattern, filter->fields[i].pattern, field->len);
1447 buf += sizeof(struct wl12xx_rx_filter_field) -
1448 sizeof(u8 *) + field->len;
1453 * Allocates an RX filter returned through f
1454 * which needs to be freed using rx_filter_free()
1456 static int wl1271_convert_wowlan_pattern_to_rx_filter(
1457 struct cfg80211_wowlan_trig_pkt_pattern *p,
1458 struct wl12xx_rx_filter **f)
1461 struct wl12xx_rx_filter *filter;
1465 filter = wl1271_rx_filter_alloc();
1467 wl1271_warning("Failed to alloc rx filter");
1473 while (i < p->pattern_len) {
1474 if (!test_bit(i, (unsigned long *)p->mask)) {
1479 for (j = i; j < p->pattern_len; j++) {
1480 if (!test_bit(j, (unsigned long *)p->mask))
1483 if (i < WL1271_RX_FILTER_ETH_HEADER_SIZE &&
1484 j >= WL1271_RX_FILTER_ETH_HEADER_SIZE)
1488 if (i < WL1271_RX_FILTER_ETH_HEADER_SIZE) {
1490 flags = WL1271_RX_FILTER_FLAG_ETHERNET_HEADER;
1492 offset = i - WL1271_RX_FILTER_ETH_HEADER_SIZE;
1493 flags = WL1271_RX_FILTER_FLAG_IP_HEADER;
1498 ret = wl1271_rx_filter_alloc_field(filter,
1501 &p->pattern[i], len);
1508 filter->action = FILTER_SIGNAL;
1514 wl1271_rx_filter_free(filter);
1520 static int wl1271_configure_wowlan(struct wl1271 *wl,
1521 struct cfg80211_wowlan *wow)
1525 if (!wow || wow->any || !wow->n_patterns) {
1526 ret = wl1271_acx_default_rx_filter_enable(wl, 0,
1531 ret = wl1271_rx_filter_clear_all(wl);
1538 if (WARN_ON(wow->n_patterns > WL1271_MAX_RX_FILTERS))
1541 /* Validate all incoming patterns before clearing current FW state */
1542 for (i = 0; i < wow->n_patterns; i++) {
1543 ret = wl1271_validate_wowlan_pattern(&wow->patterns[i]);
1545 wl1271_warning("Bad wowlan pattern %d", i);
1550 ret = wl1271_acx_default_rx_filter_enable(wl, 0, FILTER_SIGNAL);
1554 ret = wl1271_rx_filter_clear_all(wl);
1558 /* Translate WoWLAN patterns into filters */
1559 for (i = 0; i < wow->n_patterns; i++) {
1560 struct cfg80211_wowlan_trig_pkt_pattern *p;
1561 struct wl12xx_rx_filter *filter = NULL;
1563 p = &wow->patterns[i];
1565 ret = wl1271_convert_wowlan_pattern_to_rx_filter(p, &filter);
1567 wl1271_warning("Failed to create an RX filter from "
1568 "wowlan pattern %d", i);
1572 ret = wl1271_rx_filter_enable(wl, i, 1, filter);
1574 wl1271_rx_filter_free(filter);
1579 ret = wl1271_acx_default_rx_filter_enable(wl, 1, FILTER_DROP);
1585 static int wl1271_configure_suspend_sta(struct wl1271 *wl,
1586 struct wl12xx_vif *wlvif,
1587 struct cfg80211_wowlan *wow)
1591 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
1594 ret = wl1271_ps_elp_wakeup(wl);
1598 ret = wl1271_configure_wowlan(wl, wow);
1602 if ((wl->conf.conn.suspend_wake_up_event ==
1603 wl->conf.conn.wake_up_event) &&
1604 (wl->conf.conn.suspend_listen_interval ==
1605 wl->conf.conn.listen_interval))
1608 ret = wl1271_acx_wake_up_conditions(wl, wlvif,
1609 wl->conf.conn.suspend_wake_up_event,
1610 wl->conf.conn.suspend_listen_interval);
1613 wl1271_error("suspend: set wake up conditions failed: %d", ret);
1616 wl1271_ps_elp_sleep(wl);
1622 static int wl1271_configure_suspend_ap(struct wl1271 *wl,
1623 struct wl12xx_vif *wlvif)
1627 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags))
1630 ret = wl1271_ps_elp_wakeup(wl);
1634 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, true);
1636 wl1271_ps_elp_sleep(wl);
1642 static int wl1271_configure_suspend(struct wl1271 *wl,
1643 struct wl12xx_vif *wlvif,
1644 struct cfg80211_wowlan *wow)
1646 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1647 return wl1271_configure_suspend_sta(wl, wlvif, wow);
1648 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
1649 return wl1271_configure_suspend_ap(wl, wlvif);
1653 static void wl1271_configure_resume(struct wl1271 *wl,
1654 struct wl12xx_vif *wlvif)
1657 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
1658 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
1660 if ((!is_ap) && (!is_sta))
1663 if (is_sta && !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
1666 ret = wl1271_ps_elp_wakeup(wl);
1671 wl1271_configure_wowlan(wl, NULL);
1673 if ((wl->conf.conn.suspend_wake_up_event ==
1674 wl->conf.conn.wake_up_event) &&
1675 (wl->conf.conn.suspend_listen_interval ==
1676 wl->conf.conn.listen_interval))
1679 ret = wl1271_acx_wake_up_conditions(wl, wlvif,
1680 wl->conf.conn.wake_up_event,
1681 wl->conf.conn.listen_interval);
1684 wl1271_error("resume: wake up conditions failed: %d",
1688 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false);
1692 wl1271_ps_elp_sleep(wl);
1695 static int wl1271_op_suspend(struct ieee80211_hw *hw,
1696 struct cfg80211_wowlan *wow)
1698 struct wl1271 *wl = hw->priv;
1699 struct wl12xx_vif *wlvif;
1702 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
1705 /* we want to perform the recovery before suspending */
1706 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
1707 wl1271_warning("postponing suspend to perform recovery");
1711 wl1271_tx_flush(wl);
1713 mutex_lock(&wl->mutex);
1714 wl->wow_enabled = true;
1715 wl12xx_for_each_wlvif(wl, wlvif) {
1716 ret = wl1271_configure_suspend(wl, wlvif, wow);
1718 mutex_unlock(&wl->mutex);
1719 wl1271_warning("couldn't prepare device to suspend");
1723 mutex_unlock(&wl->mutex);
1724 /* flush any remaining work */
1725 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
1728 * disable and re-enable interrupts in order to flush
1731 wlcore_disable_interrupts(wl);
1734 * set suspended flag to avoid triggering a new threaded_irq
1735 * work. no need for spinlock as interrupts are disabled.
1737 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1739 wlcore_enable_interrupts(wl);
1740 flush_work(&wl->tx_work);
1741 flush_delayed_work(&wl->elp_work);
1746 static int wl1271_op_resume(struct ieee80211_hw *hw)
1748 struct wl1271 *wl = hw->priv;
1749 struct wl12xx_vif *wlvif;
1750 unsigned long flags;
1751 bool run_irq_work = false, pending_recovery;
1754 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1756 WARN_ON(!wl->wow_enabled);
1759 * re-enable irq_work enqueuing, and call irq_work directly if
1760 * there is a pending work.
1762 spin_lock_irqsave(&wl->wl_lock, flags);
1763 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1764 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1765 run_irq_work = true;
1766 spin_unlock_irqrestore(&wl->wl_lock, flags);
1768 mutex_lock(&wl->mutex);
1770 /* test the recovery flag before calling any SDIO functions */
1771 pending_recovery = test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
1775 wl1271_debug(DEBUG_MAC80211,
1776 "run postponed irq_work directly");
1778 /* don't talk to the HW if recovery is pending */
1779 if (!pending_recovery) {
1780 ret = wlcore_irq_locked(wl);
1782 wl12xx_queue_recovery_work(wl);
1785 wlcore_enable_interrupts(wl);
1788 if (pending_recovery) {
1789 wl1271_warning("queuing forgotten recovery on resume");
1790 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1794 wl12xx_for_each_wlvif(wl, wlvif) {
1795 wl1271_configure_resume(wl, wlvif);
1799 wl->wow_enabled = false;
1800 mutex_unlock(&wl->mutex);
1806 static int wl1271_op_start(struct ieee80211_hw *hw)
1808 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1811 * We have to delay the booting of the hardware because
1812 * we need to know the local MAC address before downloading and
1813 * initializing the firmware. The MAC address cannot be changed
1814 * after boot, and without the proper MAC address, the firmware
1815 * will not function properly.
1817 * The MAC address is first known when the corresponding interface
1818 * is added. That is where we will initialize the hardware.
1824 static void wlcore_op_stop_locked(struct wl1271 *wl)
1828 if (wl->state == WLCORE_STATE_OFF) {
1829 if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
1831 wlcore_enable_interrupts(wl);
1837 * this must be before the cancel_work calls below, so that the work
1838 * functions don't perform further work.
1840 wl->state = WLCORE_STATE_OFF;
1843 * Use the nosync variant to disable interrupts, so the mutex could be
1844 * held while doing so without deadlocking.
1846 wlcore_disable_interrupts_nosync(wl);
1848 mutex_unlock(&wl->mutex);
1850 wlcore_synchronize_interrupts(wl);
1851 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1852 cancel_work_sync(&wl->recovery_work);
1853 wl1271_flush_deferred_work(wl);
1854 cancel_delayed_work_sync(&wl->scan_complete_work);
1855 cancel_work_sync(&wl->netstack_work);
1856 cancel_work_sync(&wl->tx_work);
1857 cancel_delayed_work_sync(&wl->elp_work);
1858 cancel_delayed_work_sync(&wl->tx_watchdog_work);
1860 /* let's notify MAC80211 about the remaining pending TX frames */
1861 mutex_lock(&wl->mutex);
1862 wl12xx_tx_reset(wl);
1864 wl1271_power_off(wl);
1866 * In case a recovery was scheduled, interrupts were disabled to avoid
1867 * an interrupt storm. Now that the power is down, it is safe to
1868 * re-enable interrupts to balance the disable depth
1870 if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1871 wlcore_enable_interrupts(wl);
1873 wl->band = IEEE80211_BAND_2GHZ;
1876 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
1877 wl->channel_type = NL80211_CHAN_NO_HT;
1878 wl->tx_blocks_available = 0;
1879 wl->tx_allocated_blocks = 0;
1880 wl->tx_results_count = 0;
1881 wl->tx_packets_count = 0;
1882 wl->time_offset = 0;
1883 wl->ap_fw_ps_map = 0;
1885 wl->sleep_auth = WL1271_PSM_ILLEGAL;
1886 memset(wl->roles_map, 0, sizeof(wl->roles_map));
1887 memset(wl->links_map, 0, sizeof(wl->links_map));
1888 memset(wl->roc_map, 0, sizeof(wl->roc_map));
1889 memset(wl->session_ids, 0, sizeof(wl->session_ids));
1890 wl->active_sta_count = 0;
1891 wl->active_link_count = 0;
1893 /* The system link is always allocated */
1894 wl->links[WL12XX_SYSTEM_HLID].allocated_pkts = 0;
1895 wl->links[WL12XX_SYSTEM_HLID].prev_freed_pkts = 0;
1896 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
1899 * this is performed after the cancel_work calls and the associated
1900 * mutex_lock, so that wl1271_op_add_interface does not accidentally
1901 * get executed before all these vars have been reset.
1905 wl->tx_blocks_freed = 0;
1907 for (i = 0; i < NUM_TX_QUEUES; i++) {
1908 wl->tx_pkts_freed[i] = 0;
1909 wl->tx_allocated_pkts[i] = 0;
1912 wl1271_debugfs_reset(wl);
1914 kfree(wl->fw_status_1);
1915 wl->fw_status_1 = NULL;
1916 wl->fw_status_2 = NULL;
1917 kfree(wl->tx_res_if);
1918 wl->tx_res_if = NULL;
1919 kfree(wl->target_mem_map);
1920 wl->target_mem_map = NULL;
1923 * FW channels must be re-calibrated after recovery,
1924 * clear the last Reg-Domain channel configuration.
1926 memset(wl->reg_ch_conf_last, 0, sizeof(wl->reg_ch_conf_last));
1929 static void wlcore_op_stop(struct ieee80211_hw *hw)
1931 struct wl1271 *wl = hw->priv;
1933 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1935 mutex_lock(&wl->mutex);
1937 wlcore_op_stop_locked(wl);
1939 mutex_unlock(&wl->mutex);
1942 static void wlcore_channel_switch_work(struct work_struct *work)
1944 struct delayed_work *dwork;
1946 struct ieee80211_vif *vif;
1947 struct wl12xx_vif *wlvif;
1950 dwork = container_of(work, struct delayed_work, work);
1951 wlvif = container_of(dwork, struct wl12xx_vif, channel_switch_work);
1954 wl1271_info("channel switch failed (role_id: %d).", wlvif->role_id);
1956 mutex_lock(&wl->mutex);
1958 if (unlikely(wl->state != WLCORE_STATE_ON))
1961 /* check the channel switch is still ongoing */
1962 if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags))
1965 vif = wl12xx_wlvif_to_vif(wlvif);
1966 ieee80211_chswitch_done(vif, false);
1968 ret = wl1271_ps_elp_wakeup(wl);
1972 wl12xx_cmd_stop_channel_switch(wl, wlvif);
1974 wl1271_ps_elp_sleep(wl);
1976 mutex_unlock(&wl->mutex);
1979 static void wlcore_connection_loss_work(struct work_struct *work)
1981 struct delayed_work *dwork;
1983 struct ieee80211_vif *vif;
1984 struct wl12xx_vif *wlvif;
1986 dwork = container_of(work, struct delayed_work, work);
1987 wlvif = container_of(dwork, struct wl12xx_vif, connection_loss_work);
1990 wl1271_info("Connection loss work (role_id: %d).", wlvif->role_id);
1992 mutex_lock(&wl->mutex);
1994 if (unlikely(wl->state != WLCORE_STATE_ON))
1997 /* Call mac80211 connection loss */
1998 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
2001 vif = wl12xx_wlvif_to_vif(wlvif);
2002 ieee80211_connection_loss(vif);
2004 mutex_unlock(&wl->mutex);
2007 static int wl12xx_allocate_rate_policy(struct wl1271 *wl, u8 *idx)
2009 u8 policy = find_first_zero_bit(wl->rate_policies_map,
2010 WL12XX_MAX_RATE_POLICIES);
2011 if (policy >= WL12XX_MAX_RATE_POLICIES)
2014 __set_bit(policy, wl->rate_policies_map);
2019 static void wl12xx_free_rate_policy(struct wl1271 *wl, u8 *idx)
2021 if (WARN_ON(*idx >= WL12XX_MAX_RATE_POLICIES))
2024 __clear_bit(*idx, wl->rate_policies_map);
2025 *idx = WL12XX_MAX_RATE_POLICIES;
2028 static int wlcore_allocate_klv_template(struct wl1271 *wl, u8 *idx)
2030 u8 policy = find_first_zero_bit(wl->klv_templates_map,
2031 WLCORE_MAX_KLV_TEMPLATES);
2032 if (policy >= WLCORE_MAX_KLV_TEMPLATES)
2035 __set_bit(policy, wl->klv_templates_map);
2040 static void wlcore_free_klv_template(struct wl1271 *wl, u8 *idx)
2042 if (WARN_ON(*idx >= WLCORE_MAX_KLV_TEMPLATES))
2045 __clear_bit(*idx, wl->klv_templates_map);
2046 *idx = WLCORE_MAX_KLV_TEMPLATES;
2049 static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2051 switch (wlvif->bss_type) {
2052 case BSS_TYPE_AP_BSS:
2054 return WL1271_ROLE_P2P_GO;
2056 return WL1271_ROLE_AP;
2058 case BSS_TYPE_STA_BSS:
2060 return WL1271_ROLE_P2P_CL;
2062 return WL1271_ROLE_STA;
2065 return WL1271_ROLE_IBSS;
2068 wl1271_error("invalid bss_type: %d", wlvif->bss_type);
2070 return WL12XX_INVALID_ROLE_TYPE;
2073 static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif)
2075 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2078 /* clear everything but the persistent data */
2079 memset(wlvif, 0, offsetof(struct wl12xx_vif, persistent));
2081 switch (ieee80211_vif_type_p2p(vif)) {
2082 case NL80211_IFTYPE_P2P_CLIENT:
2085 case NL80211_IFTYPE_STATION:
2086 wlvif->bss_type = BSS_TYPE_STA_BSS;
2088 case NL80211_IFTYPE_ADHOC:
2089 wlvif->bss_type = BSS_TYPE_IBSS;
2091 case NL80211_IFTYPE_P2P_GO:
2094 case NL80211_IFTYPE_AP:
2095 wlvif->bss_type = BSS_TYPE_AP_BSS;
2098 wlvif->bss_type = MAX_BSS_TYPE;
2102 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
2103 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
2104 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
2106 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2107 wlvif->bss_type == BSS_TYPE_IBSS) {
2108 /* init sta/ibss data */
2109 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
2110 wl12xx_allocate_rate_policy(wl, &wlvif->sta.basic_rate_idx);
2111 wl12xx_allocate_rate_policy(wl, &wlvif->sta.ap_rate_idx);
2112 wl12xx_allocate_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
2113 wlcore_allocate_klv_template(wl, &wlvif->sta.klv_template_id);
2114 wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
2115 wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
2116 wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
2119 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2120 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
2121 wl12xx_allocate_rate_policy(wl, &wlvif->ap.mgmt_rate_idx);
2122 wl12xx_allocate_rate_policy(wl, &wlvif->ap.bcast_rate_idx);
2123 for (i = 0; i < CONF_TX_MAX_AC_COUNT; i++)
2124 wl12xx_allocate_rate_policy(wl,
2125 &wlvif->ap.ucast_rate_idx[i]);
2126 wlvif->basic_rate_set = CONF_TX_ENABLED_RATES;
2128 * TODO: check if basic_rate shouldn't be
2129 * wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2130 * instead (the same thing for STA above).
2132 wlvif->basic_rate = CONF_TX_ENABLED_RATES;
2133 /* TODO: this seems to be used only for STA, check it */
2134 wlvif->rate_set = CONF_TX_ENABLED_RATES;
2137 wlvif->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
2138 wlvif->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
2139 wlvif->beacon_int = WL1271_DEFAULT_BEACON_INT;
2142 * mac80211 configures some values globally, while we treat them
2143 * per-interface. thus, on init, we have to copy them from wl
2145 wlvif->band = wl->band;
2146 wlvif->channel = wl->channel;
2147 wlvif->power_level = wl->power_level;
2148 wlvif->channel_type = wl->channel_type;
2150 INIT_WORK(&wlvif->rx_streaming_enable_work,
2151 wl1271_rx_streaming_enable_work);
2152 INIT_WORK(&wlvif->rx_streaming_disable_work,
2153 wl1271_rx_streaming_disable_work);
2154 INIT_DELAYED_WORK(&wlvif->channel_switch_work,
2155 wlcore_channel_switch_work);
2156 INIT_DELAYED_WORK(&wlvif->connection_loss_work,
2157 wlcore_connection_loss_work);
2158 INIT_LIST_HEAD(&wlvif->list);
2160 setup_timer(&wlvif->rx_streaming_timer, wl1271_rx_streaming_timer,
2161 (unsigned long) wlvif);
2165 static int wl12xx_init_fw(struct wl1271 *wl)
2167 int retries = WL1271_BOOT_RETRIES;
2168 bool booted = false;
2169 struct wiphy *wiphy = wl->hw->wiphy;
2174 ret = wl12xx_chip_wakeup(wl, false);
2178 ret = wl->ops->boot(wl);
2182 ret = wl1271_hw_init(wl);
2190 mutex_unlock(&wl->mutex);
2191 /* Unlocking the mutex in the middle of handling is
2192 inherently unsafe. In this case we deem it safe to do,
2193 because we need to let any possibly pending IRQ out of
2194 the system (and while we are WLCORE_STATE_OFF the IRQ
2195 work function will not do anything.) Also, any other
2196 possible concurrent operations will fail due to the
2197 current state, hence the wl1271 struct should be safe. */
2198 wlcore_disable_interrupts(wl);
2199 wl1271_flush_deferred_work(wl);
2200 cancel_work_sync(&wl->netstack_work);
2201 mutex_lock(&wl->mutex);
2203 wl1271_power_off(wl);
2207 wl1271_error("firmware boot failed despite %d retries",
2208 WL1271_BOOT_RETRIES);
2212 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
2214 /* update hw/fw version info in wiphy struct */
2215 wiphy->hw_version = wl->chip.id;
2216 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
2217 sizeof(wiphy->fw_version));
2220 * Now we know if 11a is supported (info from the NVS), so disable
2221 * 11a channels if not supported
2223 if (!wl->enable_11a)
2224 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
2226 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
2227 wl->enable_11a ? "" : "not ");
2229 wl->state = WLCORE_STATE_ON;
2234 static bool wl12xx_dev_role_started(struct wl12xx_vif *wlvif)
2236 return wlvif->dev_hlid != WL12XX_INVALID_LINK_ID;
2240 * Check whether a fw switch (i.e. moving from one loaded
2241 * fw to another) is needed. This function is also responsible
2242 * for updating wl->last_vif_count, so it must be called before
2243 * loading a non-plt fw (so the correct fw (single-role/multi-role)
2246 static bool wl12xx_need_fw_change(struct wl1271 *wl,
2247 struct vif_counter_data vif_counter_data,
2250 enum wl12xx_fw_type current_fw = wl->fw_type;
2251 u8 vif_count = vif_counter_data.counter;
2253 if (test_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags))
2256 /* increase the vif count if this is a new vif */
2257 if (add && !vif_counter_data.cur_vif_running)
2260 wl->last_vif_count = vif_count;
2262 /* no need for fw change if the device is OFF */
2263 if (wl->state == WLCORE_STATE_OFF)
2266 /* no need for fw change if a single fw is used */
2267 if (!wl->mr_fw_name)
2270 if (vif_count > 1 && current_fw == WL12XX_FW_TYPE_NORMAL)
2272 if (vif_count <= 1 && current_fw == WL12XX_FW_TYPE_MULTI)
2279 * Enter "forced psm". Make sure the sta is in psm against the ap,
2280 * to make the fw switch a bit more disconnection-persistent.
2282 static void wl12xx_force_active_psm(struct wl1271 *wl)
2284 struct wl12xx_vif *wlvif;
2286 wl12xx_for_each_wlvif_sta(wl, wlvif) {
2287 wl1271_ps_set_mode(wl, wlvif, STATION_POWER_SAVE_MODE);
2291 struct wlcore_hw_queue_iter_data {
2292 unsigned long hw_queue_map[BITS_TO_LONGS(WLCORE_NUM_MAC_ADDRESSES)];
2294 struct ieee80211_vif *vif;
2295 /* is the current vif among those iterated */
2299 static void wlcore_hw_queue_iter(void *data, u8 *mac,
2300 struct ieee80211_vif *vif)
2302 struct wlcore_hw_queue_iter_data *iter_data = data;
2304 if (WARN_ON_ONCE(vif->hw_queue[0] == IEEE80211_INVAL_HW_QUEUE))
2307 if (iter_data->cur_running || vif == iter_data->vif) {
2308 iter_data->cur_running = true;
2312 __set_bit(vif->hw_queue[0] / NUM_TX_QUEUES, iter_data->hw_queue_map);
2315 static int wlcore_allocate_hw_queue_base(struct wl1271 *wl,
2316 struct wl12xx_vif *wlvif)
2318 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2319 struct wlcore_hw_queue_iter_data iter_data = {};
2322 iter_data.vif = vif;
2324 /* mark all bits taken by active interfaces */
2325 ieee80211_iterate_active_interfaces_atomic(wl->hw,
2326 IEEE80211_IFACE_ITER_RESUME_ALL,
2327 wlcore_hw_queue_iter, &iter_data);
2329 /* the current vif is already running in mac80211 (resume/recovery) */
2330 if (iter_data.cur_running) {
2331 wlvif->hw_queue_base = vif->hw_queue[0];
2332 wl1271_debug(DEBUG_MAC80211,
2333 "using pre-allocated hw queue base %d",
2334 wlvif->hw_queue_base);
2336 /* interface type might have changed type */
2337 goto adjust_cab_queue;
2340 q_base = find_first_zero_bit(iter_data.hw_queue_map,
2341 WLCORE_NUM_MAC_ADDRESSES);
2342 if (q_base >= WLCORE_NUM_MAC_ADDRESSES)
2345 wlvif->hw_queue_base = q_base * NUM_TX_QUEUES;
2346 wl1271_debug(DEBUG_MAC80211, "allocating hw queue base: %d",
2347 wlvif->hw_queue_base);
2349 for (i = 0; i < NUM_TX_QUEUES; i++) {
2350 wl->queue_stop_reasons[wlvif->hw_queue_base + i] = 0;
2351 /* register hw queues in mac80211 */
2352 vif->hw_queue[i] = wlvif->hw_queue_base + i;
2356 /* the last places are reserved for cab queues per interface */
2357 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
2358 vif->cab_queue = NUM_TX_QUEUES * WLCORE_NUM_MAC_ADDRESSES +
2359 wlvif->hw_queue_base / NUM_TX_QUEUES;
2361 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
2366 static int wl1271_op_add_interface(struct ieee80211_hw *hw,
2367 struct ieee80211_vif *vif)
2369 struct wl1271 *wl = hw->priv;
2370 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2371 struct vif_counter_data vif_count;
2375 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
2376 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
2378 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
2379 ieee80211_vif_type_p2p(vif), vif->addr);
2381 wl12xx_get_vif_count(hw, vif, &vif_count);
2383 mutex_lock(&wl->mutex);
2384 ret = wl1271_ps_elp_wakeup(wl);
2389 * in some very corner case HW recovery scenarios its possible to
2390 * get here before __wl1271_op_remove_interface is complete, so
2391 * opt out if that is the case.
2393 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) ||
2394 test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)) {
2400 ret = wl12xx_init_vif_data(wl, vif);
2405 role_type = wl12xx_get_role_type(wl, wlvif);
2406 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
2411 ret = wlcore_allocate_hw_queue_base(wl, wlvif);
2415 if (wl12xx_need_fw_change(wl, vif_count, true)) {
2416 wl12xx_force_active_psm(wl);
2417 set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
2418 mutex_unlock(&wl->mutex);
2419 wl1271_recovery_work(&wl->recovery_work);
2424 * TODO: after the nvs issue will be solved, move this block
2425 * to start(), and make sure here the driver is ON.
2427 if (wl->state == WLCORE_STATE_OFF) {
2429 * we still need this in order to configure the fw
2430 * while uploading the nvs
2432 memcpy(wl->addresses[0].addr, vif->addr, ETH_ALEN);
2434 ret = wl12xx_init_fw(wl);
2439 ret = wl12xx_cmd_role_enable(wl, vif->addr,
2440 role_type, &wlvif->role_id);
2444 ret = wl1271_init_vif_specific(wl, vif);
2448 list_add(&wlvif->list, &wl->wlvif_list);
2449 set_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags);
2451 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
2456 wl1271_ps_elp_sleep(wl);
2458 mutex_unlock(&wl->mutex);
2463 static void __wl1271_op_remove_interface(struct wl1271 *wl,
2464 struct ieee80211_vif *vif,
2465 bool reset_tx_queues)
2467 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2469 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
2471 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
2473 if (!test_and_clear_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
2476 /* because of hardware recovery, we may get here twice */
2477 if (wl->state == WLCORE_STATE_OFF)
2480 wl1271_info("down");
2482 if (wl->scan.state != WL1271_SCAN_STATE_IDLE &&
2483 wl->scan_wlvif == wlvif) {
2485 * Rearm the tx watchdog just before idling scan. This
2486 * prevents just-finished scans from triggering the watchdog
2488 wl12xx_rearm_tx_watchdog_locked(wl);
2490 wl->scan.state = WL1271_SCAN_STATE_IDLE;
2491 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
2492 wl->scan_wlvif = NULL;
2493 wl->scan.req = NULL;
2494 ieee80211_scan_completed(wl->hw, true);
2497 if (wl->sched_vif == wlvif) {
2498 ieee80211_sched_scan_stopped(wl->hw);
2499 wl->sched_vif = NULL;
2502 if (wl->roc_vif == vif) {
2504 ieee80211_remain_on_channel_expired(wl->hw);
2507 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2508 /* disable active roles */
2509 ret = wl1271_ps_elp_wakeup(wl);
2513 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2514 wlvif->bss_type == BSS_TYPE_IBSS) {
2515 if (wl12xx_dev_role_started(wlvif))
2516 wl12xx_stop_dev(wl, wlvif);
2519 ret = wl12xx_cmd_role_disable(wl, &wlvif->role_id);
2523 wl1271_ps_elp_sleep(wl);
2526 /* clear all hlids (except system_hlid) */
2527 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
2529 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2530 wlvif->bss_type == BSS_TYPE_IBSS) {
2531 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
2532 wl12xx_free_rate_policy(wl, &wlvif->sta.basic_rate_idx);
2533 wl12xx_free_rate_policy(wl, &wlvif->sta.ap_rate_idx);
2534 wl12xx_free_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
2535 wlcore_free_klv_template(wl, &wlvif->sta.klv_template_id);
2537 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2538 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
2539 wl12xx_free_rate_policy(wl, &wlvif->ap.mgmt_rate_idx);
2540 wl12xx_free_rate_policy(wl, &wlvif->ap.bcast_rate_idx);
2541 for (i = 0; i < CONF_TX_MAX_AC_COUNT; i++)
2542 wl12xx_free_rate_policy(wl,
2543 &wlvif->ap.ucast_rate_idx[i]);
2544 wl1271_free_ap_keys(wl, wlvif);
2547 dev_kfree_skb(wlvif->probereq);
2548 wlvif->probereq = NULL;
2549 wl12xx_tx_reset_wlvif(wl, wlvif);
2550 if (wl->last_wlvif == wlvif)
2551 wl->last_wlvif = NULL;
2552 list_del(&wlvif->list);
2553 memset(wlvif->ap.sta_hlid_map, 0, sizeof(wlvif->ap.sta_hlid_map));
2554 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
2555 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
2563 * Last AP, have more stations. Configure sleep auth according to STA.
2564 * Don't do thin on unintended recovery.
2566 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) &&
2567 !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags))
2570 if (wl->ap_count == 0 && is_ap && wl->sta_count) {
2571 u8 sta_auth = wl->conf.conn.sta_sleep_auth;
2572 /* Configure for power according to debugfs */
2573 if (sta_auth != WL1271_PSM_ILLEGAL)
2574 wl1271_acx_sleep_auth(wl, sta_auth);
2575 /* Configure for ELP power saving */
2577 wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP);
2581 mutex_unlock(&wl->mutex);
2583 del_timer_sync(&wlvif->rx_streaming_timer);
2584 cancel_work_sync(&wlvif->rx_streaming_enable_work);
2585 cancel_work_sync(&wlvif->rx_streaming_disable_work);
2586 cancel_delayed_work_sync(&wlvif->connection_loss_work);
2588 mutex_lock(&wl->mutex);
2591 static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2592 struct ieee80211_vif *vif)
2594 struct wl1271 *wl = hw->priv;
2595 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2596 struct wl12xx_vif *iter;
2597 struct vif_counter_data vif_count;
2599 wl12xx_get_vif_count(hw, vif, &vif_count);
2600 mutex_lock(&wl->mutex);
2602 if (wl->state == WLCORE_STATE_OFF ||
2603 !test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
2607 * wl->vif can be null here if someone shuts down the interface
2608 * just when hardware recovery has been started.
2610 wl12xx_for_each_wlvif(wl, iter) {
2614 __wl1271_op_remove_interface(wl, vif, true);
2617 WARN_ON(iter != wlvif);
2618 if (wl12xx_need_fw_change(wl, vif_count, false)) {
2619 wl12xx_force_active_psm(wl);
2620 set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
2621 wl12xx_queue_recovery_work(wl);
2624 mutex_unlock(&wl->mutex);
2627 static int wl12xx_op_change_interface(struct ieee80211_hw *hw,
2628 struct ieee80211_vif *vif,
2629 enum nl80211_iftype new_type, bool p2p)
2631 struct wl1271 *wl = hw->priv;
2634 set_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
2635 wl1271_op_remove_interface(hw, vif);
2637 vif->type = new_type;
2639 ret = wl1271_op_add_interface(hw, vif);
2641 clear_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
2645 static int wlcore_join(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2648 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
2651 * One of the side effects of the JOIN command is that is clears
2652 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2653 * to a WPA/WPA2 access point will therefore kill the data-path.
2654 * Currently the only valid scenario for JOIN during association
2655 * is on roaming, in which case we will also be given new keys.
2656 * Keep the below message for now, unless it starts bothering
2657 * users who really like to roam a lot :)
2659 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
2660 wl1271_info("JOIN while associated.");
2662 /* clear encryption type */
2663 wlvif->encryption_type = KEY_NONE;
2666 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
2668 if (wl->quirks & WLCORE_QUIRK_START_STA_FAILS) {
2670 * TODO: this is an ugly workaround for wl12xx fw
2671 * bug - we are not able to tx/rx after the first
2672 * start_sta, so make dummy start+stop calls,
2673 * and then call start_sta again.
2674 * this should be fixed in the fw.
2676 wl12xx_cmd_role_start_sta(wl, wlvif);
2677 wl12xx_cmd_role_stop_sta(wl, wlvif);
2680 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
2686 static int wl1271_ssid_set(struct wl12xx_vif *wlvif, struct sk_buff *skb,
2690 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
2694 wl1271_error("No SSID in IEs!");
2699 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2700 wl1271_error("SSID is too long!");
2704 wlvif->ssid_len = ssid_len;
2705 memcpy(wlvif->ssid, ptr+2, ssid_len);
2709 static int wlcore_set_ssid(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2711 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2712 struct sk_buff *skb;
2715 /* we currently only support setting the ssid from the ap probe req */
2716 if (wlvif->bss_type != BSS_TYPE_STA_BSS)
2719 skb = ieee80211_ap_probereq_get(wl->hw, vif);
2723 ieoffset = offsetof(struct ieee80211_mgmt,
2724 u.probe_req.variable);
2725 wl1271_ssid_set(wlvif, skb, ieoffset);
2731 static int wlcore_set_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2732 struct ieee80211_bss_conf *bss_conf,
2738 wlvif->aid = bss_conf->aid;
2739 wlvif->channel_type = cfg80211_get_chandef_type(&bss_conf->chandef);
2740 wlvif->beacon_int = bss_conf->beacon_int;
2741 wlvif->wmm_enabled = bss_conf->qos;
2743 set_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags);
2746 * with wl1271, we don't need to update the
2747 * beacon_int and dtim_period, because the firmware
2748 * updates it by itself when the first beacon is
2749 * received after a join.
2751 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wlvif->aid);
2756 * Get a template for hardware connection maintenance
2758 dev_kfree_skb(wlvif->probereq);
2759 wlvif->probereq = wl1271_cmd_build_ap_probe_req(wl,
2762 ieoffset = offsetof(struct ieee80211_mgmt,
2763 u.probe_req.variable);
2764 wl1271_ssid_set(wlvif, wlvif->probereq, ieoffset);
2766 /* enable the connection monitoring feature */
2767 ret = wl1271_acx_conn_monit_params(wl, wlvif, true);
2772 * The join command disable the keep-alive mode, shut down its process,
2773 * and also clear the template config, so we need to reset it all after
2774 * the join. The acx_aid starts the keep-alive process, and the order
2775 * of the commands below is relevant.
2777 ret = wl1271_acx_keep_alive_mode(wl, wlvif, true);
2781 ret = wl1271_acx_aid(wl, wlvif, wlvif->aid);
2785 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
2789 ret = wl1271_acx_keep_alive_config(wl, wlvif,
2790 wlvif->sta.klv_template_id,
2791 ACX_KEEP_ALIVE_TPL_VALID);
2796 * The default fw psm configuration is AUTO, while mac80211 default
2797 * setting is off (ACTIVE), so sync the fw with the correct value.
2799 ret = wl1271_ps_set_mode(wl, wlvif, STATION_ACTIVE_MODE);
2805 wl1271_tx_enabled_rates_get(wl,
2808 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
2816 static int wlcore_unset_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2819 bool sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
2821 /* make sure we are connected (sta) joined */
2823 !test_and_clear_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
2826 /* make sure we are joined (ibss) */
2828 test_and_clear_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags))
2832 /* use defaults when not associated */
2835 /* free probe-request template */
2836 dev_kfree_skb(wlvif->probereq);
2837 wlvif->probereq = NULL;
2839 /* disable connection monitor features */
2840 ret = wl1271_acx_conn_monit_params(wl, wlvif, false);
2844 /* Disable the keep-alive feature */
2845 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
2850 if (test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags)) {
2851 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2853 wl12xx_cmd_stop_channel_switch(wl, wlvif);
2854 ieee80211_chswitch_done(vif, false);
2855 cancel_delayed_work(&wlvif->channel_switch_work);
2858 /* invalidate keep-alive template */
2859 wl1271_acx_keep_alive_config(wl, wlvif,
2860 wlvif->sta.klv_template_id,
2861 ACX_KEEP_ALIVE_TPL_INVALID);
2863 /* reset TX security counters on a clean disconnect */
2864 wlvif->tx_security_last_seq_lsb = 0;
2865 wlvif->tx_security_seq = 0;
2870 static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2872 wlvif->basic_rate_set = wlvif->bitrate_masks[wlvif->band];
2873 wlvif->rate_set = wlvif->basic_rate_set;
2876 static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2877 struct ieee80211_conf *conf, u32 changed)
2881 if (conf->power_level != wlvif->power_level) {
2882 ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
2886 wlvif->power_level = conf->power_level;
2892 static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2894 struct wl1271 *wl = hw->priv;
2895 struct wl12xx_vif *wlvif;
2896 struct ieee80211_conf *conf = &hw->conf;
2899 wl1271_debug(DEBUG_MAC80211, "mac80211 config psm %s power %d %s"
2901 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
2903 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2906 mutex_lock(&wl->mutex);
2908 if (changed & IEEE80211_CONF_CHANGE_POWER)
2909 wl->power_level = conf->power_level;
2911 if (unlikely(wl->state != WLCORE_STATE_ON))
2914 ret = wl1271_ps_elp_wakeup(wl);
2918 /* configure each interface */
2919 wl12xx_for_each_wlvif(wl, wlvif) {
2920 ret = wl12xx_config_vif(wl, wlvif, conf, changed);
2926 wl1271_ps_elp_sleep(wl);
2929 mutex_unlock(&wl->mutex);
2934 struct wl1271_filter_params {
2937 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2940 static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2941 struct netdev_hw_addr_list *mc_list)
2943 struct wl1271_filter_params *fp;
2944 struct netdev_hw_addr *ha;
2946 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
2948 wl1271_error("Out of memory setting filters.");
2952 /* update multicast filtering parameters */
2953 fp->mc_list_length = 0;
2954 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2955 fp->enabled = false;
2958 netdev_hw_addr_list_for_each(ha, mc_list) {
2959 memcpy(fp->mc_list[fp->mc_list_length],
2960 ha->addr, ETH_ALEN);
2961 fp->mc_list_length++;
2965 return (u64)(unsigned long)fp;
2968 #define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2971 FIF_BCN_PRBRESP_PROMISC | \
2975 static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2976 unsigned int changed,
2977 unsigned int *total, u64 multicast)
2979 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
2980 struct wl1271 *wl = hw->priv;
2981 struct wl12xx_vif *wlvif;
2985 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2986 " total %x", changed, *total);
2988 mutex_lock(&wl->mutex);
2990 *total &= WL1271_SUPPORTED_FILTERS;
2991 changed &= WL1271_SUPPORTED_FILTERS;
2993 if (unlikely(wl->state != WLCORE_STATE_ON))
2996 ret = wl1271_ps_elp_wakeup(wl);
3000 wl12xx_for_each_wlvif(wl, wlvif) {
3001 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
3002 if (*total & FIF_ALLMULTI)
3003 ret = wl1271_acx_group_address_tbl(wl, wlvif,
3007 ret = wl1271_acx_group_address_tbl(wl, wlvif,
3010 fp->mc_list_length);
3017 * the fw doesn't provide an api to configure the filters. instead,
3018 * the filters configuration is based on the active roles / ROC
3023 wl1271_ps_elp_sleep(wl);
3026 mutex_unlock(&wl->mutex);
3030 static int wl1271_record_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3031 u8 id, u8 key_type, u8 key_size,
3032 const u8 *key, u8 hlid, u32 tx_seq_32,
3035 struct wl1271_ap_key *ap_key;
3038 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
3040 if (key_size > MAX_KEY_SIZE)
3044 * Find next free entry in ap_keys. Also check we are not replacing
3047 for (i = 0; i < MAX_NUM_KEYS; i++) {
3048 if (wlvif->ap.recorded_keys[i] == NULL)
3051 if (wlvif->ap.recorded_keys[i]->id == id) {
3052 wl1271_warning("trying to record key replacement");
3057 if (i == MAX_NUM_KEYS)
3060 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
3065 ap_key->key_type = key_type;
3066 ap_key->key_size = key_size;
3067 memcpy(ap_key->key, key, key_size);
3068 ap_key->hlid = hlid;
3069 ap_key->tx_seq_32 = tx_seq_32;
3070 ap_key->tx_seq_16 = tx_seq_16;
3072 wlvif->ap.recorded_keys[i] = ap_key;
3076 static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif)
3080 for (i = 0; i < MAX_NUM_KEYS; i++) {
3081 kfree(wlvif->ap.recorded_keys[i]);
3082 wlvif->ap.recorded_keys[i] = NULL;
3086 static int wl1271_ap_init_hwenc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
3089 struct wl1271_ap_key *key;
3090 bool wep_key_added = false;
3092 for (i = 0; i < MAX_NUM_KEYS; i++) {
3094 if (wlvif->ap.recorded_keys[i] == NULL)
3097 key = wlvif->ap.recorded_keys[i];
3099 if (hlid == WL12XX_INVALID_LINK_ID)
3100 hlid = wlvif->ap.bcast_hlid;
3102 ret = wl1271_cmd_set_ap_key(wl, wlvif, KEY_ADD_OR_REPLACE,
3103 key->id, key->key_type,
3104 key->key_size, key->key,
3105 hlid, key->tx_seq_32,
3110 if (key->key_type == KEY_WEP)
3111 wep_key_added = true;
3114 if (wep_key_added) {
3115 ret = wl12xx_cmd_set_default_wep_key(wl, wlvif->default_key,
3116 wlvif->ap.bcast_hlid);
3122 wl1271_free_ap_keys(wl, wlvif);
3126 static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3127 u16 action, u8 id, u8 key_type,
3128 u8 key_size, const u8 *key, u32 tx_seq_32,
3129 u16 tx_seq_16, struct ieee80211_sta *sta)
3132 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
3135 struct wl1271_station *wl_sta;
3139 wl_sta = (struct wl1271_station *)sta->drv_priv;
3140 hlid = wl_sta->hlid;
3142 hlid = wlvif->ap.bcast_hlid;
3145 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
3147 * We do not support removing keys after AP shutdown.
3148 * Pretend we do to make mac80211 happy.
3150 if (action != KEY_ADD_OR_REPLACE)
3153 ret = wl1271_record_ap_key(wl, wlvif, id,
3155 key, hlid, tx_seq_32,
3158 ret = wl1271_cmd_set_ap_key(wl, wlvif, action,
3159 id, key_type, key_size,
3160 key, hlid, tx_seq_32,
3168 static const u8 bcast_addr[ETH_ALEN] = {
3169 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
3172 addr = sta ? sta->addr : bcast_addr;
3174 if (is_zero_ether_addr(addr)) {
3175 /* We dont support TX only encryption */
3179 /* The wl1271 does not allow to remove unicast keys - they
3180 will be cleared automatically on next CMD_JOIN. Ignore the
3181 request silently, as we dont want the mac80211 to emit
3182 an error message. */
3183 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
3186 /* don't remove key if hlid was already deleted */
3187 if (action == KEY_REMOVE &&
3188 wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
3191 ret = wl1271_cmd_set_sta_key(wl, wlvif, action,
3192 id, key_type, key_size,
3193 key, addr, tx_seq_32,
3198 /* the default WEP key needs to be configured at least once */
3199 if (key_type == KEY_WEP) {
3200 ret = wl12xx_cmd_set_default_wep_key(wl,
3211 static int wlcore_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3212 struct ieee80211_vif *vif,
3213 struct ieee80211_sta *sta,
3214 struct ieee80211_key_conf *key_conf)
3216 struct wl1271 *wl = hw->priv;
3218 bool might_change_spare =
3219 key_conf->cipher == WL1271_CIPHER_SUITE_GEM ||
3220 key_conf->cipher == WLAN_CIPHER_SUITE_TKIP;
3222 if (might_change_spare) {
3224 * stop the queues and flush to ensure the next packets are
3225 * in sync with FW spare block accounting
3227 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3228 wl1271_tx_flush(wl);
3231 mutex_lock(&wl->mutex);
3233 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3235 goto out_wake_queues;
3238 ret = wl1271_ps_elp_wakeup(wl);
3240 goto out_wake_queues;
3242 ret = wlcore_hw_set_key(wl, cmd, vif, sta, key_conf);
3244 wl1271_ps_elp_sleep(wl);
3247 if (might_change_spare)
3248 wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3250 mutex_unlock(&wl->mutex);
3255 int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
3256 struct ieee80211_vif *vif,
3257 struct ieee80211_sta *sta,
3258 struct ieee80211_key_conf *key_conf)
3260 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3266 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
3268 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
3269 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
3270 key_conf->cipher, key_conf->keyidx,
3271 key_conf->keylen, key_conf->flags);
3272 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
3274 switch (key_conf->cipher) {
3275 case WLAN_CIPHER_SUITE_WEP40:
3276 case WLAN_CIPHER_SUITE_WEP104:
3279 key_conf->hw_key_idx = key_conf->keyidx;
3281 case WLAN_CIPHER_SUITE_TKIP:
3282 key_type = KEY_TKIP;
3284 key_conf->hw_key_idx = key_conf->keyidx;
3285 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3286 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
3288 case WLAN_CIPHER_SUITE_CCMP:
3291 key_conf->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3292 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3293 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
3295 case WL1271_CIPHER_SUITE_GEM:
3297 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3298 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
3301 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
3308 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
3309 key_conf->keyidx, key_type,
3310 key_conf->keylen, key_conf->key,
3311 tx_seq_32, tx_seq_16, sta);
3313 wl1271_error("Could not add or replace key");
3318 * reconfiguring arp response if the unicast (or common)
3319 * encryption key type was changed
3321 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
3322 (sta || key_type == KEY_WEP) &&
3323 wlvif->encryption_type != key_type) {
3324 wlvif->encryption_type = key_type;
3325 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
3327 wl1271_warning("build arp rsp failed: %d", ret);
3334 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
3335 key_conf->keyidx, key_type,
3336 key_conf->keylen, key_conf->key,
3339 wl1271_error("Could not remove key");
3345 wl1271_error("Unsupported key cmd 0x%x", cmd);
3351 EXPORT_SYMBOL_GPL(wlcore_set_key);
3353 void wlcore_regdomain_config(struct wl1271 *wl)
3357 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
3360 mutex_lock(&wl->mutex);
3361 ret = wl1271_ps_elp_wakeup(wl);
3365 ret = wlcore_cmd_regdomain_config_locked(wl);
3367 wl12xx_queue_recovery_work(wl);
3371 wl1271_ps_elp_sleep(wl);
3373 mutex_unlock(&wl->mutex);
3376 static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
3377 struct ieee80211_vif *vif,
3378 struct cfg80211_scan_request *req)
3380 struct wl1271 *wl = hw->priv;
3385 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
3388 ssid = req->ssids[0].ssid;
3389 len = req->ssids[0].ssid_len;
3392 mutex_lock(&wl->mutex);
3394 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3396 * We cannot return -EBUSY here because cfg80211 will expect
3397 * a call to ieee80211_scan_completed if we do - in this case
3398 * there won't be any call.
3404 ret = wl1271_ps_elp_wakeup(wl);
3408 /* fail if there is any role in ROC */
3409 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
3410 /* don't allow scanning right now */
3415 ret = wlcore_scan(hw->priv, vif, ssid, len, req);
3417 wl1271_ps_elp_sleep(wl);
3419 mutex_unlock(&wl->mutex);
3424 static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
3425 struct ieee80211_vif *vif)
3427 struct wl1271 *wl = hw->priv;
3428 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3431 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
3433 mutex_lock(&wl->mutex);
3435 if (unlikely(wl->state != WLCORE_STATE_ON))
3438 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
3441 ret = wl1271_ps_elp_wakeup(wl);
3445 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
3446 ret = wl->ops->scan_stop(wl, wlvif);
3452 * Rearm the tx watchdog just before idling scan. This
3453 * prevents just-finished scans from triggering the watchdog
3455 wl12xx_rearm_tx_watchdog_locked(wl);
3457 wl->scan.state = WL1271_SCAN_STATE_IDLE;
3458 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
3459 wl->scan_wlvif = NULL;
3460 wl->scan.req = NULL;
3461 ieee80211_scan_completed(wl->hw, true);
3464 wl1271_ps_elp_sleep(wl);
3466 mutex_unlock(&wl->mutex);
3468 cancel_delayed_work_sync(&wl->scan_complete_work);
3471 static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
3472 struct ieee80211_vif *vif,
3473 struct cfg80211_sched_scan_request *req,
3474 struct ieee80211_sched_scan_ies *ies)
3476 struct wl1271 *wl = hw->priv;
3477 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3480 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
3482 mutex_lock(&wl->mutex);
3484 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3489 ret = wl1271_ps_elp_wakeup(wl);
3493 ret = wl->ops->sched_scan_start(wl, wlvif, req, ies);
3497 wl->sched_vif = wlvif;
3500 wl1271_ps_elp_sleep(wl);
3502 mutex_unlock(&wl->mutex);
3506 static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3507 struct ieee80211_vif *vif)
3509 struct wl1271 *wl = hw->priv;
3510 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3513 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3515 mutex_lock(&wl->mutex);
3517 if (unlikely(wl->state != WLCORE_STATE_ON))
3520 ret = wl1271_ps_elp_wakeup(wl);
3524 wl->ops->sched_scan_stop(wl, wlvif);
3526 wl1271_ps_elp_sleep(wl);
3528 mutex_unlock(&wl->mutex);
3531 static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3533 struct wl1271 *wl = hw->priv;
3536 mutex_lock(&wl->mutex);
3538 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3543 ret = wl1271_ps_elp_wakeup(wl);
3547 ret = wl1271_acx_frag_threshold(wl, value);
3549 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3551 wl1271_ps_elp_sleep(wl);
3554 mutex_unlock(&wl->mutex);
3559 static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3561 struct wl1271 *wl = hw->priv;
3562 struct wl12xx_vif *wlvif;
3565 mutex_lock(&wl->mutex);
3567 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3572 ret = wl1271_ps_elp_wakeup(wl);
3576 wl12xx_for_each_wlvif(wl, wlvif) {
3577 ret = wl1271_acx_rts_threshold(wl, wlvif, value);
3579 wl1271_warning("set rts threshold failed: %d", ret);
3581 wl1271_ps_elp_sleep(wl);
3584 mutex_unlock(&wl->mutex);
3589 static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3592 const u8 *next, *end = skb->data + skb->len;
3593 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3594 skb->len - ieoffset);
3599 memmove(ie, next, end - next);
3600 skb_trim(skb, skb->len - len);
3603 static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3604 unsigned int oui, u8 oui_type,
3608 const u8 *next, *end = skb->data + skb->len;
3609 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3610 skb->data + ieoffset,
3611 skb->len - ieoffset);
3616 memmove(ie, next, end - next);
3617 skb_trim(skb, skb->len - len);
3620 static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl, u32 rates,
3621 struct ieee80211_vif *vif)
3623 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3624 struct sk_buff *skb;
3627 skb = ieee80211_proberesp_get(wl->hw, vif);
3631 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
3632 CMD_TEMPL_AP_PROBE_RESPONSE,
3641 wl1271_debug(DEBUG_AP, "probe response updated");
3642 set_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags);
3648 static int wl1271_ap_set_probe_resp_tmpl_legacy(struct wl1271 *wl,
3649 struct ieee80211_vif *vif,
3651 size_t probe_rsp_len,
3654 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3655 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3656 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3657 int ssid_ie_offset, ie_offset, templ_len;
3660 /* no need to change probe response if the SSID is set correctly */
3661 if (wlvif->ssid_len > 0)
3662 return wl1271_cmd_template_set(wl, wlvif->role_id,
3663 CMD_TEMPL_AP_PROBE_RESPONSE,
3668 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3669 wl1271_error("probe_rsp template too big");
3673 /* start searching from IE offset */
3674 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3676 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3677 probe_rsp_len - ie_offset);
3679 wl1271_error("No SSID in beacon!");
3683 ssid_ie_offset = ptr - probe_rsp_data;
3684 ptr += (ptr[1] + 2);
3686 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3688 /* insert SSID from bss_conf */
3689 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3690 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3691 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3692 bss_conf->ssid, bss_conf->ssid_len);
3693 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3695 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3696 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3697 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3699 return wl1271_cmd_template_set(wl, wlvif->role_id,
3700 CMD_TEMPL_AP_PROBE_RESPONSE,
3706 static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
3707 struct ieee80211_vif *vif,
3708 struct ieee80211_bss_conf *bss_conf,
3711 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3714 if (changed & BSS_CHANGED_ERP_SLOT) {
3715 if (bss_conf->use_short_slot)
3716 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_SHORT);
3718 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_LONG);
3720 wl1271_warning("Set slot time failed %d", ret);
3725 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3726 if (bss_conf->use_short_preamble)
3727 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_SHORT);
3729 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_LONG);
3732 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3733 if (bss_conf->use_cts_prot)
3734 ret = wl1271_acx_cts_protect(wl, wlvif,
3737 ret = wl1271_acx_cts_protect(wl, wlvif,
3738 CTSPROTECT_DISABLE);
3740 wl1271_warning("Set ctsprotect failed %d", ret);
3749 static int wlcore_set_beacon_template(struct wl1271 *wl,
3750 struct ieee80211_vif *vif,
3753 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3754 struct ieee80211_hdr *hdr;
3757 int ieoffset = offsetof(struct ieee80211_mgmt,
3759 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3767 wl1271_debug(DEBUG_MASTER, "beacon updated");
3769 ret = wl1271_ssid_set(wlvif, beacon, ieoffset);
3771 dev_kfree_skb(beacon);
3774 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3775 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3777 ret = wl1271_cmd_template_set(wl, wlvif->role_id, tmpl_id,
3782 dev_kfree_skb(beacon);
3786 wlvif->wmm_enabled =
3787 cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
3788 WLAN_OUI_TYPE_MICROSOFT_WMM,
3789 beacon->data + ieoffset,
3790 beacon->len - ieoffset);
3793 * In case we already have a probe-resp beacon set explicitly
3794 * by usermode, don't use the beacon data.
3796 if (test_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags))
3799 /* remove TIM ie from probe response */
3800 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3803 * remove p2p ie from probe response.
3804 * the fw reponds to probe requests that don't include
3805 * the p2p ie. probe requests with p2p ie will be passed,
3806 * and will be responded by the supplicant (the spec
3807 * forbids including the p2p ie when responding to probe
3808 * requests that didn't include it).
3810 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3811 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3813 hdr = (struct ieee80211_hdr *) beacon->data;
3814 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3815 IEEE80211_STYPE_PROBE_RESP);
3817 ret = wl1271_ap_set_probe_resp_tmpl_legacy(wl, vif,
3822 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
3823 CMD_TEMPL_PROBE_RESPONSE,
3828 dev_kfree_skb(beacon);
3836 static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3837 struct ieee80211_vif *vif,
3838 struct ieee80211_bss_conf *bss_conf,
3841 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3842 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
3845 if (changed & BSS_CHANGED_BEACON_INT) {
3846 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
3847 bss_conf->beacon_int);
3849 wlvif->beacon_int = bss_conf->beacon_int;
3852 if ((changed & BSS_CHANGED_AP_PROBE_RESP) && is_ap) {
3853 u32 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3855 wl1271_ap_set_probe_resp_tmpl(wl, rate, vif);
3858 if (changed & BSS_CHANGED_BEACON) {
3859 ret = wlcore_set_beacon_template(wl, vif, is_ap);
3866 wl1271_error("beacon info change failed: %d", ret);
3870 /* AP mode changes */
3871 static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3872 struct ieee80211_vif *vif,
3873 struct ieee80211_bss_conf *bss_conf,
3876 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3879 if (changed & BSS_CHANGED_BASIC_RATES) {
3880 u32 rates = bss_conf->basic_rates;
3882 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
3884 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
3885 wlvif->basic_rate_set);
3887 ret = wl1271_init_ap_rates(wl, wlvif);
3889 wl1271_error("AP rate policy change failed %d", ret);
3893 ret = wl1271_ap_init_templates(wl, vif);
3897 ret = wl1271_ap_set_probe_resp_tmpl(wl, wlvif->basic_rate, vif);
3901 ret = wlcore_set_beacon_template(wl, vif, true);
3906 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3910 if (changed & BSS_CHANGED_BEACON_ENABLED) {
3911 if (bss_conf->enable_beacon) {
3912 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
3913 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
3917 ret = wl1271_ap_init_hwenc(wl, wlvif);
3921 set_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
3922 wl1271_debug(DEBUG_AP, "started AP");
3925 if (test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
3926 ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
3930 clear_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
3931 clear_bit(WLVIF_FLAG_AP_PROBE_RESP_SET,
3933 wl1271_debug(DEBUG_AP, "stopped AP");
3938 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
3942 /* Handle HT information change */
3943 if ((changed & BSS_CHANGED_HT) &&
3944 (bss_conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT)) {
3945 ret = wl1271_acx_set_ht_information(wl, wlvif,
3946 bss_conf->ht_operation_mode);
3948 wl1271_warning("Set ht information failed %d", ret);
3957 static int wlcore_set_bssid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3958 struct ieee80211_bss_conf *bss_conf,
3964 wl1271_debug(DEBUG_MAC80211,
3965 "changed_bssid: %pM, aid: %d, bcn_int: %d, brates: 0x%x sta_rate_set: 0x%x",
3966 bss_conf->bssid, bss_conf->aid,
3967 bss_conf->beacon_int,
3968 bss_conf->basic_rates, sta_rate_set);
3970 wlvif->beacon_int = bss_conf->beacon_int;
3971 rates = bss_conf->basic_rates;
3972 wlvif->basic_rate_set =
3973 wl1271_tx_enabled_rates_get(wl, rates,
3976 wl1271_tx_min_rate_get(wl,
3977 wlvif->basic_rate_set);
3981 wl1271_tx_enabled_rates_get(wl,
3985 /* we only support sched_scan while not connected */
3986 if (wl->sched_vif == wlvif)
3987 wl->ops->sched_scan_stop(wl, wlvif);
3989 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
3993 ret = wl12xx_cmd_build_null_data(wl, wlvif);
3997 ret = wl1271_build_qos_null_data(wl, wl12xx_wlvif_to_vif(wlvif));
4001 wlcore_set_ssid(wl, wlvif);
4003 set_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
4008 static int wlcore_clear_bssid(struct wl1271 *wl, struct wl12xx_vif *wlvif)
4012 /* revert back to minimum rates for the current band */
4013 wl1271_set_band_rate(wl, wlvif);
4014 wlvif->basic_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
4016 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
4020 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
4021 test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags)) {
4022 ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
4027 clear_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
4030 /* STA/IBSS mode changes */
4031 static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
4032 struct ieee80211_vif *vif,
4033 struct ieee80211_bss_conf *bss_conf,
4036 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4037 bool do_join = false;
4038 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
4039 bool ibss_joined = false;
4040 u32 sta_rate_set = 0;
4042 struct ieee80211_sta *sta;
4043 bool sta_exists = false;
4044 struct ieee80211_sta_ht_cap sta_ht_cap;
4047 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
4053 if (changed & BSS_CHANGED_IBSS) {
4054 if (bss_conf->ibss_joined) {
4055 set_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags);
4058 wlcore_unset_assoc(wl, wlvif);
4059 wl12xx_cmd_role_stop_sta(wl, wlvif);
4063 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
4066 /* Need to update the SSID (for filtering etc) */
4067 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
4070 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
4071 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
4072 bss_conf->enable_beacon ? "enabled" : "disabled");
4077 if (changed & BSS_CHANGED_CQM) {
4078 bool enable = false;
4079 if (bss_conf->cqm_rssi_thold)
4081 ret = wl1271_acx_rssi_snr_trigger(wl, wlvif, enable,
4082 bss_conf->cqm_rssi_thold,
4083 bss_conf->cqm_rssi_hyst);
4086 wlvif->rssi_thold = bss_conf->cqm_rssi_thold;
4089 if (changed & (BSS_CHANGED_BSSID | BSS_CHANGED_HT |
4090 BSS_CHANGED_ASSOC)) {
4092 sta = ieee80211_find_sta(vif, bss_conf->bssid);
4094 u8 *rx_mask = sta->ht_cap.mcs.rx_mask;
4096 /* save the supp_rates of the ap */
4097 sta_rate_set = sta->supp_rates[wlvif->band];
4098 if (sta->ht_cap.ht_supported)
4100 (rx_mask[0] << HW_HT_RATES_OFFSET) |
4101 (rx_mask[1] << HW_MIMO_RATES_OFFSET);
4102 sta_ht_cap = sta->ht_cap;
4109 if (changed & BSS_CHANGED_BSSID) {
4110 if (!is_zero_ether_addr(bss_conf->bssid)) {
4111 ret = wlcore_set_bssid(wl, wlvif, bss_conf,
4116 /* Need to update the BSSID (for filtering etc) */
4119 ret = wlcore_clear_bssid(wl, wlvif);
4125 if (changed & BSS_CHANGED_IBSS) {
4126 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
4127 bss_conf->ibss_joined);
4129 if (bss_conf->ibss_joined) {
4130 u32 rates = bss_conf->basic_rates;
4131 wlvif->basic_rate_set =
4132 wl1271_tx_enabled_rates_get(wl, rates,
4135 wl1271_tx_min_rate_get(wl,
4136 wlvif->basic_rate_set);
4138 /* by default, use 11b + OFDM rates */
4139 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
4140 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
4146 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
4151 ret = wlcore_join(wl, wlvif);
4153 wl1271_warning("cmd join failed %d", ret);
4158 if (changed & BSS_CHANGED_ASSOC) {
4159 if (bss_conf->assoc) {
4160 ret = wlcore_set_assoc(wl, wlvif, bss_conf,
4165 if (test_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags))
4166 wl12xx_set_authorized(wl, wlvif);
4168 wlcore_unset_assoc(wl, wlvif);
4172 if (changed & BSS_CHANGED_PS) {
4173 if ((bss_conf->ps) &&
4174 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
4175 !test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
4179 if (wl->conf.conn.forced_ps) {
4180 ps_mode = STATION_POWER_SAVE_MODE;
4181 ps_mode_str = "forced";
4183 ps_mode = STATION_AUTO_PS_MODE;
4184 ps_mode_str = "auto";
4187 wl1271_debug(DEBUG_PSM, "%s ps enabled", ps_mode_str);
4189 ret = wl1271_ps_set_mode(wl, wlvif, ps_mode);
4191 wl1271_warning("enter %s ps failed %d",
4193 } else if (!bss_conf->ps &&
4194 test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
4195 wl1271_debug(DEBUG_PSM, "auto ps disabled");
4197 ret = wl1271_ps_set_mode(wl, wlvif,
4198 STATION_ACTIVE_MODE);
4200 wl1271_warning("exit auto ps failed %d", ret);
4204 /* Handle new association with HT. Do this after join. */
4206 (changed & BSS_CHANGED_HT)) {
4208 bss_conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT;
4210 ret = wlcore_hw_set_peer_cap(wl,
4216 wl1271_warning("Set ht cap failed %d", ret);
4222 ret = wl1271_acx_set_ht_information(wl, wlvif,
4223 bss_conf->ht_operation_mode);
4225 wl1271_warning("Set ht information failed %d",
4232 /* Handle arp filtering. Done after join. */
4233 if ((changed & BSS_CHANGED_ARP_FILTER) ||
4234 (!is_ibss && (changed & BSS_CHANGED_QOS))) {
4235 __be32 addr = bss_conf->arp_addr_list[0];
4236 wlvif->sta.qos = bss_conf->qos;
4237 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
4239 if (bss_conf->arp_addr_cnt == 1 && bss_conf->assoc) {
4240 wlvif->ip_addr = addr;
4242 * The template should have been configured only upon
4243 * association. however, it seems that the correct ip
4244 * isn't being set (when sending), so we have to
4245 * reconfigure the template upon every ip change.
4247 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
4249 wl1271_warning("build arp rsp failed: %d", ret);
4253 ret = wl1271_acx_arp_ip_filter(wl, wlvif,
4254 (ACX_ARP_FILTER_ARP_FILTERING |
4255 ACX_ARP_FILTER_AUTO_ARP),
4259 ret = wl1271_acx_arp_ip_filter(wl, wlvif, 0, addr);
4270 static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
4271 struct ieee80211_vif *vif,
4272 struct ieee80211_bss_conf *bss_conf,
4275 struct wl1271 *wl = hw->priv;
4276 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4277 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
4280 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info role %d changed 0x%x",
4281 wlvif->role_id, (int)changed);
4284 * make sure to cancel pending disconnections if our association
4287 if (!is_ap && (changed & BSS_CHANGED_ASSOC))
4288 cancel_delayed_work_sync(&wlvif->connection_loss_work);
4290 if (is_ap && (changed & BSS_CHANGED_BEACON_ENABLED) &&
4291 !bss_conf->enable_beacon)
4292 wl1271_tx_flush(wl);
4294 mutex_lock(&wl->mutex);
4296 if (unlikely(wl->state != WLCORE_STATE_ON))
4299 if (unlikely(!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)))
4302 ret = wl1271_ps_elp_wakeup(wl);
4307 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
4309 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
4311 wl1271_ps_elp_sleep(wl);
4314 mutex_unlock(&wl->mutex);
4317 static int wlcore_op_add_chanctx(struct ieee80211_hw *hw,
4318 struct ieee80211_chanctx_conf *ctx)
4320 wl1271_debug(DEBUG_MAC80211, "mac80211 add chanctx %d (type %d)",
4321 ieee80211_frequency_to_channel(ctx->def.chan->center_freq),
4322 cfg80211_get_chandef_type(&ctx->def));
4326 static void wlcore_op_remove_chanctx(struct ieee80211_hw *hw,
4327 struct ieee80211_chanctx_conf *ctx)
4329 wl1271_debug(DEBUG_MAC80211, "mac80211 remove chanctx %d (type %d)",
4330 ieee80211_frequency_to_channel(ctx->def.chan->center_freq),
4331 cfg80211_get_chandef_type(&ctx->def));
4334 static void wlcore_op_change_chanctx(struct ieee80211_hw *hw,
4335 struct ieee80211_chanctx_conf *ctx,
4338 wl1271_debug(DEBUG_MAC80211,
4339 "mac80211 change chanctx %d (type %d) changed 0x%x",
4340 ieee80211_frequency_to_channel(ctx->def.chan->center_freq),
4341 cfg80211_get_chandef_type(&ctx->def), changed);
4344 static int wlcore_op_assign_vif_chanctx(struct ieee80211_hw *hw,
4345 struct ieee80211_vif *vif,
4346 struct ieee80211_chanctx_conf *ctx)
4348 struct wl1271 *wl = hw->priv;
4349 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4350 int channel = ieee80211_frequency_to_channel(
4351 ctx->def.chan->center_freq);
4353 wl1271_debug(DEBUG_MAC80211,
4354 "mac80211 assign chanctx (role %d) %d (type %d)",
4355 wlvif->role_id, channel, cfg80211_get_chandef_type(&ctx->def));
4357 mutex_lock(&wl->mutex);
4359 wlvif->band = ctx->def.chan->band;
4360 wlvif->channel = channel;
4361 wlvif->channel_type = cfg80211_get_chandef_type(&ctx->def);
4363 /* update default rates according to the band */
4364 wl1271_set_band_rate(wl, wlvif);
4366 mutex_unlock(&wl->mutex);
4371 static void wlcore_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
4372 struct ieee80211_vif *vif,
4373 struct ieee80211_chanctx_conf *ctx)
4375 struct wl1271 *wl = hw->priv;
4376 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4378 wl1271_debug(DEBUG_MAC80211,
4379 "mac80211 unassign chanctx (role %d) %d (type %d)",
4381 ieee80211_frequency_to_channel(ctx->def.chan->center_freq),
4382 cfg80211_get_chandef_type(&ctx->def));
4384 wl1271_tx_flush(wl);
4387 static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
4388 struct ieee80211_vif *vif, u16 queue,
4389 const struct ieee80211_tx_queue_params *params)
4391 struct wl1271 *wl = hw->priv;
4392 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4396 mutex_lock(&wl->mutex);
4398 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
4401 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
4403 ps_scheme = CONF_PS_SCHEME_LEGACY;
4405 if (!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
4408 ret = wl1271_ps_elp_wakeup(wl);
4413 * the txop is confed in units of 32us by the mac80211,
4416 ret = wl1271_acx_ac_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
4417 params->cw_min, params->cw_max,
4418 params->aifs, params->txop << 5);
4422 ret = wl1271_acx_tid_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
4423 CONF_CHANNEL_TYPE_EDCF,
4424 wl1271_tx_get_queue(queue),
4425 ps_scheme, CONF_ACK_POLICY_LEGACY,
4429 wl1271_ps_elp_sleep(wl);
4432 mutex_unlock(&wl->mutex);
4437 static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
4438 struct ieee80211_vif *vif)
4441 struct wl1271 *wl = hw->priv;
4442 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4443 u64 mactime = ULLONG_MAX;
4446 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
4448 mutex_lock(&wl->mutex);
4450 if (unlikely(wl->state != WLCORE_STATE_ON))
4453 ret = wl1271_ps_elp_wakeup(wl);
4457 ret = wl12xx_acx_tsf_info(wl, wlvif, &mactime);
4462 wl1271_ps_elp_sleep(wl);
4465 mutex_unlock(&wl->mutex);
4469 static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
4470 struct survey_info *survey)
4472 struct ieee80211_conf *conf = &hw->conf;
4477 survey->channel = conf->channel;
4482 static int wl1271_allocate_sta(struct wl1271 *wl,
4483 struct wl12xx_vif *wlvif,
4484 struct ieee80211_sta *sta)
4486 struct wl1271_station *wl_sta;
4490 if (wl->active_sta_count >= AP_MAX_STATIONS) {
4491 wl1271_warning("could not allocate HLID - too much stations");
4495 wl_sta = (struct wl1271_station *)sta->drv_priv;
4496 ret = wl12xx_allocate_link(wl, wlvif, &wl_sta->hlid);
4498 wl1271_warning("could not allocate HLID - too many links");
4502 set_bit(wl_sta->hlid, wlvif->ap.sta_hlid_map);
4503 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
4504 wl->active_sta_count++;
4508 void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid)
4510 if (!test_bit(hlid, wlvif->ap.sta_hlid_map))
4513 clear_bit(hlid, wlvif->ap.sta_hlid_map);
4514 __clear_bit(hlid, &wl->ap_ps_map);
4515 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
4516 wl12xx_free_link(wl, wlvif, &hlid);
4517 wl->active_sta_count--;
4520 * rearm the tx watchdog when the last STA is freed - give the FW a
4521 * chance to return STA-buffered packets before complaining.
4523 if (wl->active_sta_count == 0)
4524 wl12xx_rearm_tx_watchdog_locked(wl);
4527 static int wl12xx_sta_add(struct wl1271 *wl,
4528 struct wl12xx_vif *wlvif,
4529 struct ieee80211_sta *sta)
4531 struct wl1271_station *wl_sta;
4535 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
4537 ret = wl1271_allocate_sta(wl, wlvif, sta);
4541 wl_sta = (struct wl1271_station *)sta->drv_priv;
4542 hlid = wl_sta->hlid;
4544 ret = wl12xx_cmd_add_peer(wl, wlvif, sta, hlid);
4546 wl1271_free_sta(wl, wlvif, hlid);
4551 static int wl12xx_sta_remove(struct wl1271 *wl,
4552 struct wl12xx_vif *wlvif,
4553 struct ieee80211_sta *sta)
4555 struct wl1271_station *wl_sta;
4558 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4560 wl_sta = (struct wl1271_station *)sta->drv_priv;
4562 if (WARN_ON(!test_bit(id, wlvif->ap.sta_hlid_map)))
4565 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
4569 wl1271_free_sta(wl, wlvif, wl_sta->hlid);
4573 static void wlcore_roc_if_possible(struct wl1271 *wl,
4574 struct wl12xx_vif *wlvif)
4576 if (find_first_bit(wl->roc_map,
4577 WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES)
4580 if (WARN_ON(wlvif->role_id == WL12XX_INVALID_ROLE_ID))
4583 wl12xx_roc(wl, wlvif, wlvif->role_id, wlvif->band, wlvif->channel);
4586 static void wlcore_update_inconn_sta(struct wl1271 *wl,
4587 struct wl12xx_vif *wlvif,
4588 struct wl1271_station *wl_sta,
4591 if (in_connection) {
4592 if (WARN_ON(wl_sta->in_connection))
4594 wl_sta->in_connection = true;
4595 if (!wlvif->inconn_count++)
4596 wlcore_roc_if_possible(wl, wlvif);
4598 if (!wl_sta->in_connection)
4601 wl_sta->in_connection = false;
4602 wlvif->inconn_count--;
4603 if (WARN_ON(wlvif->inconn_count < 0))
4606 if (!wlvif->inconn_count)
4607 if (test_bit(wlvif->role_id, wl->roc_map))
4608 wl12xx_croc(wl, wlvif->role_id);
4612 static int wl12xx_update_sta_state(struct wl1271 *wl,
4613 struct wl12xx_vif *wlvif,
4614 struct ieee80211_sta *sta,
4615 enum ieee80211_sta_state old_state,
4616 enum ieee80211_sta_state new_state)
4618 struct wl1271_station *wl_sta;
4620 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
4621 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
4624 wl_sta = (struct wl1271_station *)sta->drv_priv;
4625 hlid = wl_sta->hlid;
4627 /* Add station (AP mode) */
4629 old_state == IEEE80211_STA_NOTEXIST &&
4630 new_state == IEEE80211_STA_NONE) {
4631 ret = wl12xx_sta_add(wl, wlvif, sta);
4635 wlcore_update_inconn_sta(wl, wlvif, wl_sta, true);
4638 /* Remove station (AP mode) */
4640 old_state == IEEE80211_STA_NONE &&
4641 new_state == IEEE80211_STA_NOTEXIST) {
4643 wl12xx_sta_remove(wl, wlvif, sta);
4645 wlcore_update_inconn_sta(wl, wlvif, wl_sta, false);
4648 /* Authorize station (AP mode) */
4650 new_state == IEEE80211_STA_AUTHORIZED) {
4651 ret = wl12xx_cmd_set_peer_state(wl, wlvif, hlid);
4655 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true,
4660 wlcore_update_inconn_sta(wl, wlvif, wl_sta, false);
4663 /* Authorize station */
4665 new_state == IEEE80211_STA_AUTHORIZED) {
4666 set_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
4667 ret = wl12xx_set_authorized(wl, wlvif);
4673 old_state == IEEE80211_STA_AUTHORIZED &&
4674 new_state == IEEE80211_STA_ASSOC) {
4675 clear_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
4676 clear_bit(WLVIF_FLAG_STA_STATE_SENT, &wlvif->flags);
4679 /* clear ROCs on failure or authorization */
4681 (new_state == IEEE80211_STA_AUTHORIZED ||
4682 new_state == IEEE80211_STA_NOTEXIST)) {
4683 if (test_bit(wlvif->role_id, wl->roc_map))
4684 wl12xx_croc(wl, wlvif->role_id);
4688 old_state == IEEE80211_STA_NOTEXIST &&
4689 new_state == IEEE80211_STA_NONE) {
4690 if (find_first_bit(wl->roc_map,
4691 WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) {
4692 WARN_ON(wlvif->role_id == WL12XX_INVALID_ROLE_ID);
4693 wl12xx_roc(wl, wlvif, wlvif->role_id,
4694 wlvif->band, wlvif->channel);
4700 static int wl12xx_op_sta_state(struct ieee80211_hw *hw,
4701 struct ieee80211_vif *vif,
4702 struct ieee80211_sta *sta,
4703 enum ieee80211_sta_state old_state,
4704 enum ieee80211_sta_state new_state)
4706 struct wl1271 *wl = hw->priv;
4707 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4710 wl1271_debug(DEBUG_MAC80211, "mac80211 sta %d state=%d->%d",
4711 sta->aid, old_state, new_state);
4713 mutex_lock(&wl->mutex);
4715 if (unlikely(wl->state != WLCORE_STATE_ON)) {
4720 ret = wl1271_ps_elp_wakeup(wl);
4724 ret = wl12xx_update_sta_state(wl, wlvif, sta, old_state, new_state);
4726 wl1271_ps_elp_sleep(wl);
4728 mutex_unlock(&wl->mutex);
4729 if (new_state < old_state)
4734 static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4735 struct ieee80211_vif *vif,
4736 enum ieee80211_ampdu_mlme_action action,
4737 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4740 struct wl1271 *wl = hw->priv;
4741 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4743 u8 hlid, *ba_bitmap;
4745 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4748 /* sanity check - the fields in FW are only 8bits wide */
4749 if (WARN_ON(tid > 0xFF))
4752 mutex_lock(&wl->mutex);
4754 if (unlikely(wl->state != WLCORE_STATE_ON)) {
4759 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
4760 hlid = wlvif->sta.hlid;
4761 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
4762 struct wl1271_station *wl_sta;
4764 wl_sta = (struct wl1271_station *)sta->drv_priv;
4765 hlid = wl_sta->hlid;
4771 ba_bitmap = &wl->links[hlid].ba_bitmap;
4773 ret = wl1271_ps_elp_wakeup(wl);
4777 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4781 case IEEE80211_AMPDU_RX_START:
4782 if (!wlvif->ba_support || !wlvif->ba_allowed) {
4787 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4789 wl1271_error("exceeded max RX BA sessions");
4793 if (*ba_bitmap & BIT(tid)) {
4795 wl1271_error("cannot enable RX BA session on active "
4800 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4803 *ba_bitmap |= BIT(tid);
4804 wl->ba_rx_session_count++;
4808 case IEEE80211_AMPDU_RX_STOP:
4809 if (!(*ba_bitmap & BIT(tid))) {
4811 * this happens on reconfig - so only output a debug
4812 * message for now, and don't fail the function.
4814 wl1271_debug(DEBUG_MAC80211,
4815 "no active RX BA session on tid: %d",
4821 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4824 *ba_bitmap &= ~BIT(tid);
4825 wl->ba_rx_session_count--;
4830 * The BA initiator session management in FW independently.
4831 * Falling break here on purpose for all TX APDU commands.
4833 case IEEE80211_AMPDU_TX_START:
4834 case IEEE80211_AMPDU_TX_STOP_CONT:
4835 case IEEE80211_AMPDU_TX_STOP_FLUSH:
4836 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
4837 case IEEE80211_AMPDU_TX_OPERATIONAL:
4842 wl1271_error("Incorrect ampdu action id=%x\n", action);
4846 wl1271_ps_elp_sleep(wl);
4849 mutex_unlock(&wl->mutex);
4854 static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4855 struct ieee80211_vif *vif,
4856 const struct cfg80211_bitrate_mask *mask)
4858 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4859 struct wl1271 *wl = hw->priv;
4862 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4863 mask->control[NL80211_BAND_2GHZ].legacy,
4864 mask->control[NL80211_BAND_5GHZ].legacy);
4866 mutex_lock(&wl->mutex);
4868 for (i = 0; i < WLCORE_NUM_BANDS; i++)
4869 wlvif->bitrate_masks[i] =
4870 wl1271_tx_enabled_rates_get(wl,
4871 mask->control[i].legacy,
4874 if (unlikely(wl->state != WLCORE_STATE_ON))
4877 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
4878 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) {
4880 ret = wl1271_ps_elp_wakeup(wl);
4884 wl1271_set_band_rate(wl, wlvif);
4886 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
4887 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
4889 wl1271_ps_elp_sleep(wl);
4892 mutex_unlock(&wl->mutex);
4897 static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4898 struct ieee80211_channel_switch *ch_switch)
4900 struct wl1271 *wl = hw->priv;
4901 struct wl12xx_vif *wlvif;
4904 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4906 wl1271_tx_flush(wl);
4908 mutex_lock(&wl->mutex);
4910 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
4911 wl12xx_for_each_wlvif_sta(wl, wlvif) {
4912 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
4913 ieee80211_chswitch_done(vif, false);
4916 } else if (unlikely(wl->state != WLCORE_STATE_ON)) {
4920 ret = wl1271_ps_elp_wakeup(wl);
4924 /* TODO: change mac80211 to pass vif as param */
4925 wl12xx_for_each_wlvif_sta(wl, wlvif) {
4926 unsigned long delay_usec;
4928 ret = wl->ops->channel_switch(wl, wlvif, ch_switch);
4932 set_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags);
4934 /* indicate failure 5 seconds after channel switch time */
4935 delay_usec = ieee80211_tu_to_usec(wlvif->beacon_int) *
4937 ieee80211_queue_delayed_work(hw, &wlvif->channel_switch_work,
4938 usecs_to_jiffies(delay_usec) +
4939 msecs_to_jiffies(5000));
4943 wl1271_ps_elp_sleep(wl);
4946 mutex_unlock(&wl->mutex);
4949 static void wlcore_op_flush(struct ieee80211_hw *hw, bool drop)
4951 struct wl1271 *wl = hw->priv;
4953 wl1271_tx_flush(wl);
4956 static int wlcore_op_remain_on_channel(struct ieee80211_hw *hw,
4957 struct ieee80211_vif *vif,
4958 struct ieee80211_channel *chan,
4961 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4962 struct wl1271 *wl = hw->priv;
4963 int channel, ret = 0;
4965 channel = ieee80211_frequency_to_channel(chan->center_freq);
4967 wl1271_debug(DEBUG_MAC80211, "mac80211 roc %d (%d)",
4968 channel, wlvif->role_id);
4970 mutex_lock(&wl->mutex);
4972 if (unlikely(wl->state != WLCORE_STATE_ON))
4975 /* return EBUSY if we can't ROC right now */
4976 if (WARN_ON(wl->roc_vif ||
4977 find_first_bit(wl->roc_map,
4978 WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES)) {
4983 ret = wl1271_ps_elp_wakeup(wl);
4987 ret = wl12xx_start_dev(wl, wlvif, chan->band, channel);
4992 ieee80211_queue_delayed_work(hw, &wl->roc_complete_work,
4993 msecs_to_jiffies(duration));
4995 wl1271_ps_elp_sleep(wl);
4997 mutex_unlock(&wl->mutex);
5001 static int __wlcore_roc_completed(struct wl1271 *wl)
5003 struct wl12xx_vif *wlvif;
5006 /* already completed */
5007 if (unlikely(!wl->roc_vif))
5010 wlvif = wl12xx_vif_to_data(wl->roc_vif);
5012 if (!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
5015 ret = wl12xx_stop_dev(wl, wlvif);
5024 static int wlcore_roc_completed(struct wl1271 *wl)
5028 wl1271_debug(DEBUG_MAC80211, "roc complete");
5030 mutex_lock(&wl->mutex);
5032 if (unlikely(wl->state != WLCORE_STATE_ON)) {
5037 ret = wl1271_ps_elp_wakeup(wl);
5041 ret = __wlcore_roc_completed(wl);
5043 wl1271_ps_elp_sleep(wl);
5045 mutex_unlock(&wl->mutex);
5050 static void wlcore_roc_complete_work(struct work_struct *work)
5052 struct delayed_work *dwork;
5056 dwork = container_of(work, struct delayed_work, work);
5057 wl = container_of(dwork, struct wl1271, roc_complete_work);
5059 ret = wlcore_roc_completed(wl);
5061 ieee80211_remain_on_channel_expired(wl->hw);
5064 static int wlcore_op_cancel_remain_on_channel(struct ieee80211_hw *hw)
5066 struct wl1271 *wl = hw->priv;
5068 wl1271_debug(DEBUG_MAC80211, "mac80211 croc");
5071 wl1271_tx_flush(wl);
5074 * we can't just flush_work here, because it might deadlock
5075 * (as we might get called from the same workqueue)
5077 cancel_delayed_work_sync(&wl->roc_complete_work);
5078 wlcore_roc_completed(wl);
5083 static void wlcore_op_sta_rc_update(struct ieee80211_hw *hw,
5084 struct ieee80211_vif *vif,
5085 struct ieee80211_sta *sta,
5088 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
5089 struct wl1271 *wl = hw->priv;
5091 wlcore_hw_sta_rc_update(wl, wlvif, sta, changed);
5094 static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
5096 struct wl1271 *wl = hw->priv;
5099 mutex_lock(&wl->mutex);
5101 if (unlikely(wl->state != WLCORE_STATE_ON))
5104 /* packets are considered pending if in the TX queue or the FW */
5105 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
5107 mutex_unlock(&wl->mutex);
5112 /* can't be const, mac80211 writes to this */
5113 static struct ieee80211_rate wl1271_rates[] = {
5115 .hw_value = CONF_HW_BIT_RATE_1MBPS,
5116 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
5118 .hw_value = CONF_HW_BIT_RATE_2MBPS,
5119 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
5120 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
5122 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
5123 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
5124 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
5126 .hw_value = CONF_HW_BIT_RATE_11MBPS,
5127 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
5128 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
5130 .hw_value = CONF_HW_BIT_RATE_6MBPS,
5131 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
5133 .hw_value = CONF_HW_BIT_RATE_9MBPS,
5134 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
5136 .hw_value = CONF_HW_BIT_RATE_12MBPS,
5137 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
5139 .hw_value = CONF_HW_BIT_RATE_18MBPS,
5140 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
5142 .hw_value = CONF_HW_BIT_RATE_24MBPS,
5143 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
5145 .hw_value = CONF_HW_BIT_RATE_36MBPS,
5146 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
5148 .hw_value = CONF_HW_BIT_RATE_48MBPS,
5149 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
5151 .hw_value = CONF_HW_BIT_RATE_54MBPS,
5152 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
5155 /* can't be const, mac80211 writes to this */
5156 static struct ieee80211_channel wl1271_channels[] = {
5157 { .hw_value = 1, .center_freq = 2412, .max_power = WLCORE_MAX_TXPWR },
5158 { .hw_value = 2, .center_freq = 2417, .max_power = WLCORE_MAX_TXPWR },
5159 { .hw_value = 3, .center_freq = 2422, .max_power = WLCORE_MAX_TXPWR },
5160 { .hw_value = 4, .center_freq = 2427, .max_power = WLCORE_MAX_TXPWR },
5161 { .hw_value = 5, .center_freq = 2432, .max_power = WLCORE_MAX_TXPWR },
5162 { .hw_value = 6, .center_freq = 2437, .max_power = WLCORE_MAX_TXPWR },
5163 { .hw_value = 7, .center_freq = 2442, .max_power = WLCORE_MAX_TXPWR },
5164 { .hw_value = 8, .center_freq = 2447, .max_power = WLCORE_MAX_TXPWR },
5165 { .hw_value = 9, .center_freq = 2452, .max_power = WLCORE_MAX_TXPWR },
5166 { .hw_value = 10, .center_freq = 2457, .max_power = WLCORE_MAX_TXPWR },
5167 { .hw_value = 11, .center_freq = 2462, .max_power = WLCORE_MAX_TXPWR },
5168 { .hw_value = 12, .center_freq = 2467, .max_power = WLCORE_MAX_TXPWR },
5169 { .hw_value = 13, .center_freq = 2472, .max_power = WLCORE_MAX_TXPWR },
5170 { .hw_value = 14, .center_freq = 2484, .max_power = WLCORE_MAX_TXPWR },
5173 /* can't be const, mac80211 writes to this */
5174 static struct ieee80211_supported_band wl1271_band_2ghz = {
5175 .channels = wl1271_channels,
5176 .n_channels = ARRAY_SIZE(wl1271_channels),
5177 .bitrates = wl1271_rates,
5178 .n_bitrates = ARRAY_SIZE(wl1271_rates),
5181 /* 5 GHz data rates for WL1273 */
5182 static struct ieee80211_rate wl1271_rates_5ghz[] = {
5184 .hw_value = CONF_HW_BIT_RATE_6MBPS,
5185 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
5187 .hw_value = CONF_HW_BIT_RATE_9MBPS,
5188 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
5190 .hw_value = CONF_HW_BIT_RATE_12MBPS,
5191 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
5193 .hw_value = CONF_HW_BIT_RATE_18MBPS,
5194 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
5196 .hw_value = CONF_HW_BIT_RATE_24MBPS,
5197 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
5199 .hw_value = CONF_HW_BIT_RATE_36MBPS,
5200 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
5202 .hw_value = CONF_HW_BIT_RATE_48MBPS,
5203 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
5205 .hw_value = CONF_HW_BIT_RATE_54MBPS,
5206 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
5209 /* 5 GHz band channels for WL1273 */
5210 static struct ieee80211_channel wl1271_channels_5ghz[] = {
5211 { .hw_value = 7, .center_freq = 5035, .max_power = WLCORE_MAX_TXPWR },
5212 { .hw_value = 8, .center_freq = 5040, .max_power = WLCORE_MAX_TXPWR },
5213 { .hw_value = 9, .center_freq = 5045, .max_power = WLCORE_MAX_TXPWR },
5214 { .hw_value = 11, .center_freq = 5055, .max_power = WLCORE_MAX_TXPWR },
5215 { .hw_value = 12, .center_freq = 5060, .max_power = WLCORE_MAX_TXPWR },
5216 { .hw_value = 16, .center_freq = 5080, .max_power = WLCORE_MAX_TXPWR },
5217 { .hw_value = 34, .center_freq = 5170, .max_power = WLCORE_MAX_TXPWR },
5218 { .hw_value = 36, .center_freq = 5180, .max_power = WLCORE_MAX_TXPWR },
5219 { .hw_value = 38, .center_freq = 5190, .max_power = WLCORE_MAX_TXPWR },
5220 { .hw_value = 40, .center_freq = 5200, .max_power = WLCORE_MAX_TXPWR },
5221 { .hw_value = 42, .center_freq = 5210, .max_power = WLCORE_MAX_TXPWR },
5222 { .hw_value = 44, .center_freq = 5220, .max_power = WLCORE_MAX_TXPWR },
5223 { .hw_value = 46, .center_freq = 5230, .max_power = WLCORE_MAX_TXPWR },
5224 { .hw_value = 48, .center_freq = 5240, .max_power = WLCORE_MAX_TXPWR },
5225 { .hw_value = 52, .center_freq = 5260, .max_power = WLCORE_MAX_TXPWR },
5226 { .hw_value = 56, .center_freq = 5280, .max_power = WLCORE_MAX_TXPWR },
5227 { .hw_value = 60, .center_freq = 5300, .max_power = WLCORE_MAX_TXPWR },
5228 { .hw_value = 64, .center_freq = 5320, .max_power = WLCORE_MAX_TXPWR },
5229 { .hw_value = 100, .center_freq = 5500, .max_power = WLCORE_MAX_TXPWR },
5230 { .hw_value = 104, .center_freq = 5520, .max_power = WLCORE_MAX_TXPWR },
5231 { .hw_value = 108, .center_freq = 5540, .max_power = WLCORE_MAX_TXPWR },
5232 { .hw_value = 112, .center_freq = 5560, .max_power = WLCORE_MAX_TXPWR },
5233 { .hw_value = 116, .center_freq = 5580, .max_power = WLCORE_MAX_TXPWR },
5234 { .hw_value = 120, .center_freq = 5600, .max_power = WLCORE_MAX_TXPWR },
5235 { .hw_value = 124, .center_freq = 5620, .max_power = WLCORE_MAX_TXPWR },
5236 { .hw_value = 128, .center_freq = 5640, .max_power = WLCORE_MAX_TXPWR },
5237 { .hw_value = 132, .center_freq = 5660, .max_power = WLCORE_MAX_TXPWR },
5238 { .hw_value = 136, .center_freq = 5680, .max_power = WLCORE_MAX_TXPWR },
5239 { .hw_value = 140, .center_freq = 5700, .max_power = WLCORE_MAX_TXPWR },
5240 { .hw_value = 149, .center_freq = 5745, .max_power = WLCORE_MAX_TXPWR },
5241 { .hw_value = 153, .center_freq = 5765, .max_power = WLCORE_MAX_TXPWR },
5242 { .hw_value = 157, .center_freq = 5785, .max_power = WLCORE_MAX_TXPWR },
5243 { .hw_value = 161, .center_freq = 5805, .max_power = WLCORE_MAX_TXPWR },
5244 { .hw_value = 165, .center_freq = 5825, .max_power = WLCORE_MAX_TXPWR },
5247 static struct ieee80211_supported_band wl1271_band_5ghz = {
5248 .channels = wl1271_channels_5ghz,
5249 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
5250 .bitrates = wl1271_rates_5ghz,
5251 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
5254 static const struct ieee80211_ops wl1271_ops = {
5255 .start = wl1271_op_start,
5256 .stop = wlcore_op_stop,
5257 .add_interface = wl1271_op_add_interface,
5258 .remove_interface = wl1271_op_remove_interface,
5259 .change_interface = wl12xx_op_change_interface,
5261 .suspend = wl1271_op_suspend,
5262 .resume = wl1271_op_resume,
5264 .config = wl1271_op_config,
5265 .prepare_multicast = wl1271_op_prepare_multicast,
5266 .configure_filter = wl1271_op_configure_filter,
5268 .set_key = wlcore_op_set_key,
5269 .hw_scan = wl1271_op_hw_scan,
5270 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
5271 .sched_scan_start = wl1271_op_sched_scan_start,
5272 .sched_scan_stop = wl1271_op_sched_scan_stop,
5273 .bss_info_changed = wl1271_op_bss_info_changed,
5274 .set_frag_threshold = wl1271_op_set_frag_threshold,
5275 .set_rts_threshold = wl1271_op_set_rts_threshold,
5276 .conf_tx = wl1271_op_conf_tx,
5277 .get_tsf = wl1271_op_get_tsf,
5278 .get_survey = wl1271_op_get_survey,
5279 .sta_state = wl12xx_op_sta_state,
5280 .ampdu_action = wl1271_op_ampdu_action,
5281 .tx_frames_pending = wl1271_tx_frames_pending,
5282 .set_bitrate_mask = wl12xx_set_bitrate_mask,
5283 .channel_switch = wl12xx_op_channel_switch,
5284 .flush = wlcore_op_flush,
5285 .remain_on_channel = wlcore_op_remain_on_channel,
5286 .cancel_remain_on_channel = wlcore_op_cancel_remain_on_channel,
5287 .add_chanctx = wlcore_op_add_chanctx,
5288 .remove_chanctx = wlcore_op_remove_chanctx,
5289 .change_chanctx = wlcore_op_change_chanctx,
5290 .assign_vif_chanctx = wlcore_op_assign_vif_chanctx,
5291 .unassign_vif_chanctx = wlcore_op_unassign_vif_chanctx,
5292 .sta_rc_update = wlcore_op_sta_rc_update,
5293 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
5297 u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band)
5303 if (unlikely(rate >= wl->hw_tx_rate_tbl_size)) {
5304 wl1271_error("Illegal RX rate from HW: %d", rate);
5308 idx = wl->band_rate_to_idx[band][rate];
5309 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
5310 wl1271_error("Unsupported RX rate from HW: %d", rate);
5317 static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
5318 struct device_attribute *attr,
5321 struct wl1271 *wl = dev_get_drvdata(dev);
5326 mutex_lock(&wl->mutex);
5327 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
5329 mutex_unlock(&wl->mutex);
5335 static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
5336 struct device_attribute *attr,
5337 const char *buf, size_t count)
5339 struct wl1271 *wl = dev_get_drvdata(dev);
5343 ret = kstrtoul(buf, 10, &res);
5345 wl1271_warning("incorrect value written to bt_coex_mode");
5349 mutex_lock(&wl->mutex);
5353 if (res == wl->sg_enabled)
5356 wl->sg_enabled = res;
5358 if (unlikely(wl->state != WLCORE_STATE_ON))
5361 ret = wl1271_ps_elp_wakeup(wl);
5365 wl1271_acx_sg_enable(wl, wl->sg_enabled);
5366 wl1271_ps_elp_sleep(wl);
5369 mutex_unlock(&wl->mutex);
5373 static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
5374 wl1271_sysfs_show_bt_coex_state,
5375 wl1271_sysfs_store_bt_coex_state);
5377 static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
5378 struct device_attribute *attr,
5381 struct wl1271 *wl = dev_get_drvdata(dev);
5386 mutex_lock(&wl->mutex);
5387 if (wl->hw_pg_ver >= 0)
5388 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
5390 len = snprintf(buf, len, "n/a\n");
5391 mutex_unlock(&wl->mutex);
5396 static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
5397 wl1271_sysfs_show_hw_pg_ver, NULL);
5399 static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
5400 struct bin_attribute *bin_attr,
5401 char *buffer, loff_t pos, size_t count)
5403 struct device *dev = container_of(kobj, struct device, kobj);
5404 struct wl1271 *wl = dev_get_drvdata(dev);
5408 ret = mutex_lock_interruptible(&wl->mutex);
5410 return -ERESTARTSYS;
5412 /* Let only one thread read the log at a time, blocking others */
5413 while (wl->fwlog_size == 0) {
5416 prepare_to_wait_exclusive(&wl->fwlog_waitq,
5418 TASK_INTERRUPTIBLE);
5420 if (wl->fwlog_size != 0) {
5421 finish_wait(&wl->fwlog_waitq, &wait);
5425 mutex_unlock(&wl->mutex);
5428 finish_wait(&wl->fwlog_waitq, &wait);
5430 if (signal_pending(current))
5431 return -ERESTARTSYS;
5433 ret = mutex_lock_interruptible(&wl->mutex);
5435 return -ERESTARTSYS;
5438 /* Check if the fwlog is still valid */
5439 if (wl->fwlog_size < 0) {
5440 mutex_unlock(&wl->mutex);
5444 /* Seeking is not supported - old logs are not kept. Disregard pos. */
5445 len = min(count, (size_t)wl->fwlog_size);
5446 wl->fwlog_size -= len;
5447 memcpy(buffer, wl->fwlog, len);
5449 /* Make room for new messages */
5450 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
5452 mutex_unlock(&wl->mutex);
5457 static struct bin_attribute fwlog_attr = {
5458 .attr = {.name = "fwlog", .mode = S_IRUSR},
5459 .read = wl1271_sysfs_read_fwlog,
5462 static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
5466 wl1271_debug(DEBUG_PROBE, "base address: oui %06x nic %06x",
5469 if (nic + WLCORE_NUM_MAC_ADDRESSES - wl->num_mac_addr > 0xffffff)
5470 wl1271_warning("NIC part of the MAC address wraps around!");
5472 for (i = 0; i < wl->num_mac_addr; i++) {
5473 wl->addresses[i].addr[0] = (u8)(oui >> 16);
5474 wl->addresses[i].addr[1] = (u8)(oui >> 8);
5475 wl->addresses[i].addr[2] = (u8) oui;
5476 wl->addresses[i].addr[3] = (u8)(nic >> 16);
5477 wl->addresses[i].addr[4] = (u8)(nic >> 8);
5478 wl->addresses[i].addr[5] = (u8) nic;
5482 /* we may be one address short at the most */
5483 WARN_ON(wl->num_mac_addr + 1 < WLCORE_NUM_MAC_ADDRESSES);
5486 * turn on the LAA bit in the first address and use it as
5489 if (wl->num_mac_addr < WLCORE_NUM_MAC_ADDRESSES) {
5490 int idx = WLCORE_NUM_MAC_ADDRESSES - 1;
5491 memcpy(&wl->addresses[idx], &wl->addresses[0],
5492 sizeof(wl->addresses[0]));
5494 wl->addresses[idx].addr[2] |= BIT(1);
5497 wl->hw->wiphy->n_addresses = WLCORE_NUM_MAC_ADDRESSES;
5498 wl->hw->wiphy->addresses = wl->addresses;
5501 static int wl12xx_get_hw_info(struct wl1271 *wl)
5505 ret = wl12xx_set_power_on(wl);
5509 ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &wl->chip.id);
5513 wl->fuse_oui_addr = 0;
5514 wl->fuse_nic_addr = 0;
5516 ret = wl->ops->get_pg_ver(wl, &wl->hw_pg_ver);
5520 if (wl->ops->get_mac)
5521 ret = wl->ops->get_mac(wl);
5524 wl1271_power_off(wl);
5528 static int wl1271_register_hw(struct wl1271 *wl)
5531 u32 oui_addr = 0, nic_addr = 0;
5533 if (wl->mac80211_registered)
5536 if (wl->nvs_len >= 12) {
5537 /* NOTE: The wl->nvs->nvs element must be first, in
5538 * order to simplify the casting, we assume it is at
5539 * the beginning of the wl->nvs structure.
5541 u8 *nvs_ptr = (u8 *)wl->nvs;
5544 (nvs_ptr[11] << 16) + (nvs_ptr[10] << 8) + nvs_ptr[6];
5546 (nvs_ptr[5] << 16) + (nvs_ptr[4] << 8) + nvs_ptr[3];
5549 /* if the MAC address is zeroed in the NVS derive from fuse */
5550 if (oui_addr == 0 && nic_addr == 0) {
5551 oui_addr = wl->fuse_oui_addr;
5552 /* fuse has the BD_ADDR, the WLAN addresses are the next two */
5553 nic_addr = wl->fuse_nic_addr + 1;
5556 wl12xx_derive_mac_addresses(wl, oui_addr, nic_addr);
5558 ret = ieee80211_register_hw(wl->hw);
5560 wl1271_error("unable to register mac80211 hw: %d", ret);
5564 wl->mac80211_registered = true;
5566 wl1271_debugfs_init(wl);
5568 wl1271_notice("loaded");
5574 static void wl1271_unregister_hw(struct wl1271 *wl)
5577 wl1271_plt_stop(wl);
5579 ieee80211_unregister_hw(wl->hw);
5580 wl->mac80211_registered = false;
5584 static const struct ieee80211_iface_limit wlcore_iface_limits[] = {
5587 .types = BIT(NL80211_IFTYPE_STATION),
5591 .types = BIT(NL80211_IFTYPE_AP) |
5592 BIT(NL80211_IFTYPE_P2P_GO) |
5593 BIT(NL80211_IFTYPE_P2P_CLIENT),
5597 static struct ieee80211_iface_combination
5598 wlcore_iface_combinations[] = {
5600 .max_interfaces = 3,
5601 .limits = wlcore_iface_limits,
5602 .n_limits = ARRAY_SIZE(wlcore_iface_limits),
5606 static int wl1271_init_ieee80211(struct wl1271 *wl)
5609 static const u32 cipher_suites[] = {
5610 WLAN_CIPHER_SUITE_WEP40,
5611 WLAN_CIPHER_SUITE_WEP104,
5612 WLAN_CIPHER_SUITE_TKIP,
5613 WLAN_CIPHER_SUITE_CCMP,
5614 WL1271_CIPHER_SUITE_GEM,
5617 /* The tx descriptor buffer */
5618 wl->hw->extra_tx_headroom = sizeof(struct wl1271_tx_hw_descr);
5620 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
5621 wl->hw->extra_tx_headroom += WL1271_EXTRA_SPACE_TKIP;
5624 /* FIXME: find a proper value */
5625 wl->hw->channel_change_time = 10000;
5626 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
5628 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
5629 IEEE80211_HW_SUPPORTS_PS |
5630 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
5631 IEEE80211_HW_SUPPORTS_UAPSD |
5632 IEEE80211_HW_HAS_RATE_CONTROL |
5633 IEEE80211_HW_CONNECTION_MONITOR |
5634 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
5635 IEEE80211_HW_SPECTRUM_MGMT |
5636 IEEE80211_HW_AP_LINK_PS |
5637 IEEE80211_HW_AMPDU_AGGREGATION |
5638 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
5639 IEEE80211_HW_QUEUE_CONTROL;
5641 wl->hw->wiphy->cipher_suites = cipher_suites;
5642 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
5644 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5645 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
5646 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
5647 wl->hw->wiphy->max_scan_ssids = 1;
5648 wl->hw->wiphy->max_sched_scan_ssids = 16;
5649 wl->hw->wiphy->max_match_sets = 16;
5651 * Maximum length of elements in scanning probe request templates
5652 * should be the maximum length possible for a template, without
5653 * the IEEE80211 header of the template
5655 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
5656 sizeof(struct ieee80211_header);
5658 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
5659 sizeof(struct ieee80211_header);
5661 wl->hw->wiphy->max_remain_on_channel_duration = 5000;
5663 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD |
5664 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
5666 /* make sure all our channels fit in the scanned_ch bitmask */
5667 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
5668 ARRAY_SIZE(wl1271_channels_5ghz) >
5669 WL1271_MAX_CHANNELS);
5671 * clear channel flags from the previous usage
5672 * and restore max_power & max_antenna_gain values.
5674 for (i = 0; i < ARRAY_SIZE(wl1271_channels); i++) {
5675 wl1271_band_2ghz.channels[i].flags = 0;
5676 wl1271_band_2ghz.channels[i].max_power = WLCORE_MAX_TXPWR;
5677 wl1271_band_2ghz.channels[i].max_antenna_gain = 0;
5680 for (i = 0; i < ARRAY_SIZE(wl1271_channels_5ghz); i++) {
5681 wl1271_band_5ghz.channels[i].flags = 0;
5682 wl1271_band_5ghz.channels[i].max_power = WLCORE_MAX_TXPWR;
5683 wl1271_band_5ghz.channels[i].max_antenna_gain = 0;
5687 * We keep local copies of the band structs because we need to
5688 * modify them on a per-device basis.
5690 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
5691 sizeof(wl1271_band_2ghz));
5692 memcpy(&wl->bands[IEEE80211_BAND_2GHZ].ht_cap,
5693 &wl->ht_cap[IEEE80211_BAND_2GHZ],
5694 sizeof(*wl->ht_cap));
5695 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
5696 sizeof(wl1271_band_5ghz));
5697 memcpy(&wl->bands[IEEE80211_BAND_5GHZ].ht_cap,
5698 &wl->ht_cap[IEEE80211_BAND_5GHZ],
5699 sizeof(*wl->ht_cap));
5701 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
5702 &wl->bands[IEEE80211_BAND_2GHZ];
5703 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
5704 &wl->bands[IEEE80211_BAND_5GHZ];
5707 * allow 4 queues per mac address we support +
5708 * 1 cab queue per mac + one global offchannel Tx queue
5710 wl->hw->queues = (NUM_TX_QUEUES + 1) * WLCORE_NUM_MAC_ADDRESSES + 1;
5712 /* the last queue is the offchannel queue */
5713 wl->hw->offchannel_tx_hw_queue = wl->hw->queues - 1;
5714 wl->hw->max_rates = 1;
5716 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
5718 /* the FW answers probe-requests in AP-mode */
5719 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
5720 wl->hw->wiphy->probe_resp_offload =
5721 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
5722 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
5723 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
5725 /* allowed interface combinations */
5726 wlcore_iface_combinations[0].num_different_channels = wl->num_channels;
5727 wl->hw->wiphy->iface_combinations = wlcore_iface_combinations;
5728 wl->hw->wiphy->n_iface_combinations =
5729 ARRAY_SIZE(wlcore_iface_combinations);
5731 SET_IEEE80211_DEV(wl->hw, wl->dev);
5733 wl->hw->sta_data_size = sizeof(struct wl1271_station);
5734 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
5736 wl->hw->max_rx_aggregation_subframes = wl->conf.ht.rx_ba_win_size;
5741 #define WL1271_DEFAULT_CHANNEL 0
5743 struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size,
5746 struct ieee80211_hw *hw;
5751 BUILD_BUG_ON(AP_MAX_STATIONS > WL12XX_MAX_LINKS);
5753 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
5755 wl1271_error("could not alloc ieee80211_hw");
5761 memset(wl, 0, sizeof(*wl));
5763 wl->priv = kzalloc(priv_size, GFP_KERNEL);
5765 wl1271_error("could not alloc wl priv");
5767 goto err_priv_alloc;
5770 INIT_LIST_HEAD(&wl->wlvif_list);
5774 for (i = 0; i < NUM_TX_QUEUES; i++)
5775 for (j = 0; j < WL12XX_MAX_LINKS; j++)
5776 skb_queue_head_init(&wl->links[j].tx_queue[i]);
5778 skb_queue_head_init(&wl->deferred_rx_queue);
5779 skb_queue_head_init(&wl->deferred_tx_queue);
5781 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
5782 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
5783 INIT_WORK(&wl->tx_work, wl1271_tx_work);
5784 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
5785 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
5786 INIT_DELAYED_WORK(&wl->roc_complete_work, wlcore_roc_complete_work);
5787 INIT_DELAYED_WORK(&wl->tx_watchdog_work, wl12xx_tx_watchdog_work);
5789 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
5790 if (!wl->freezable_wq) {
5795 wl->channel = WL1271_DEFAULT_CHANNEL;
5797 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
5798 wl->band = IEEE80211_BAND_2GHZ;
5799 wl->channel_type = NL80211_CHAN_NO_HT;
5801 wl->sg_enabled = true;
5802 wl->sleep_auth = WL1271_PSM_ILLEGAL;
5803 wl->recovery_count = 0;
5806 wl->ap_fw_ps_map = 0;
5808 wl->platform_quirks = 0;
5809 wl->system_hlid = WL12XX_SYSTEM_HLID;
5810 wl->active_sta_count = 0;
5811 wl->active_link_count = 0;
5813 init_waitqueue_head(&wl->fwlog_waitq);
5815 /* The system link is always allocated */
5816 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
5818 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
5819 for (i = 0; i < wl->num_tx_desc; i++)
5820 wl->tx_frames[i] = NULL;
5822 spin_lock_init(&wl->wl_lock);
5824 wl->state = WLCORE_STATE_OFF;
5825 wl->fw_type = WL12XX_FW_TYPE_NONE;
5826 mutex_init(&wl->mutex);
5827 mutex_init(&wl->flush_mutex);
5828 init_completion(&wl->nvs_loading_complete);
5830 order = get_order(aggr_buf_size);
5831 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
5832 if (!wl->aggr_buf) {
5836 wl->aggr_buf_size = aggr_buf_size;
5838 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
5839 if (!wl->dummy_packet) {
5844 /* Allocate one page for the FW log */
5845 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
5848 goto err_dummy_packet;
5851 wl->mbox_size = mbox_size;
5852 wl->mbox = kmalloc(wl->mbox_size, GFP_KERNEL | GFP_DMA);
5858 wl->buffer_32 = kmalloc(sizeof(*wl->buffer_32), GFP_KERNEL);
5859 if (!wl->buffer_32) {
5870 free_page((unsigned long)wl->fwlog);
5873 dev_kfree_skb(wl->dummy_packet);
5876 free_pages((unsigned long)wl->aggr_buf, order);
5879 destroy_workqueue(wl->freezable_wq);
5882 wl1271_debugfs_exit(wl);
5886 ieee80211_free_hw(hw);
5890 return ERR_PTR(ret);
5892 EXPORT_SYMBOL_GPL(wlcore_alloc_hw);
5894 int wlcore_free_hw(struct wl1271 *wl)
5896 /* Unblock any fwlog readers */
5897 mutex_lock(&wl->mutex);
5898 wl->fwlog_size = -1;
5899 wake_up_interruptible_all(&wl->fwlog_waitq);
5900 mutex_unlock(&wl->mutex);
5902 device_remove_bin_file(wl->dev, &fwlog_attr);
5904 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
5906 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
5907 kfree(wl->buffer_32);
5909 free_page((unsigned long)wl->fwlog);
5910 dev_kfree_skb(wl->dummy_packet);
5911 free_pages((unsigned long)wl->aggr_buf, get_order(wl->aggr_buf_size));
5913 wl1271_debugfs_exit(wl);
5917 wl->fw_type = WL12XX_FW_TYPE_NONE;
5921 kfree(wl->fw_status_1);
5922 kfree(wl->tx_res_if);
5923 destroy_workqueue(wl->freezable_wq);
5926 ieee80211_free_hw(wl->hw);
5930 EXPORT_SYMBOL_GPL(wlcore_free_hw);
5932 static irqreturn_t wl12xx_hardirq(int irq, void *cookie)
5934 struct wl1271 *wl = cookie;
5935 unsigned long flags;
5937 wl1271_debug(DEBUG_IRQ, "IRQ");
5939 /* complete the ELP completion */
5940 spin_lock_irqsave(&wl->wl_lock, flags);
5941 set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
5942 if (wl->elp_compl) {
5943 complete(wl->elp_compl);
5944 wl->elp_compl = NULL;
5947 if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
5948 /* don't enqueue a work right now. mark it as pending */
5949 set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
5950 wl1271_debug(DEBUG_IRQ, "should not enqueue work");
5951 disable_irq_nosync(wl->irq);
5952 pm_wakeup_event(wl->dev, 0);
5953 spin_unlock_irqrestore(&wl->wl_lock, flags);
5956 spin_unlock_irqrestore(&wl->wl_lock, flags);
5958 return IRQ_WAKE_THREAD;
5961 static void wlcore_nvs_cb(const struct firmware *fw, void *context)
5963 struct wl1271 *wl = context;
5964 struct platform_device *pdev = wl->pdev;
5965 struct wlcore_platdev_data *pdev_data = pdev->dev.platform_data;
5966 struct wl12xx_platform_data *pdata = pdev_data->pdata;
5967 unsigned long irqflags;
5971 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
5973 wl1271_error("Could not allocate nvs data");
5976 wl->nvs_len = fw->size;
5978 wl1271_debug(DEBUG_BOOT, "Could not get nvs file %s",
5984 ret = wl->ops->setup(wl);
5988 BUG_ON(wl->num_tx_desc > WLCORE_MAX_TX_DESCRIPTORS);
5990 /* adjust some runtime configuration parameters */
5991 wlcore_adjust_conf(wl);
5993 wl->irq = platform_get_irq(pdev, 0);
5994 wl->platform_quirks = pdata->platform_quirks;
5995 wl->if_ops = pdev_data->if_ops;
5997 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
5998 irqflags = IRQF_TRIGGER_RISING;
6000 irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
6002 ret = request_threaded_irq(wl->irq, wl12xx_hardirq, wlcore_irq,
6006 wl1271_error("request_irq() failed: %d", ret);
6011 ret = enable_irq_wake(wl->irq);
6013 wl->irq_wake_enabled = true;
6014 device_init_wakeup(wl->dev, 1);
6015 if (pdata->pwr_in_suspend) {
6016 wl->hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
6017 wl->hw->wiphy->wowlan.n_patterns =
6018 WL1271_MAX_RX_FILTERS;
6019 wl->hw->wiphy->wowlan.pattern_min_len = 1;
6020 wl->hw->wiphy->wowlan.pattern_max_len =
6021 WL1271_RX_FILTER_MAX_PATTERN_SIZE;
6025 disable_irq(wl->irq);
6027 ret = wl12xx_get_hw_info(wl);
6029 wl1271_error("couldn't get hw info");
6033 ret = wl->ops->identify_chip(wl);
6037 ret = wl1271_init_ieee80211(wl);
6041 ret = wl1271_register_hw(wl);
6045 /* Create sysfs file to control bt coex state */
6046 ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
6048 wl1271_error("failed to create sysfs file bt_coex_state");
6052 /* Create sysfs file to get HW PG version */
6053 ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
6055 wl1271_error("failed to create sysfs file hw_pg_ver");
6056 goto out_bt_coex_state;
6059 /* Create sysfs file for the FW log */
6060 ret = device_create_bin_file(wl->dev, &fwlog_attr);
6062 wl1271_error("failed to create sysfs file fwlog");
6066 wl->initialized = true;
6070 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
6073 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
6076 wl1271_unregister_hw(wl);
6079 free_irq(wl->irq, wl);
6085 release_firmware(fw);
6086 complete_all(&wl->nvs_loading_complete);
6089 int wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
6093 if (!wl->ops || !wl->ptable)
6096 wl->dev = &pdev->dev;
6098 platform_set_drvdata(pdev, wl);
6100 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
6101 WL12XX_NVS_NAME, &pdev->dev, GFP_KERNEL,
6104 wl1271_error("request_firmware_nowait failed: %d", ret);
6105 complete_all(&wl->nvs_loading_complete);
6110 EXPORT_SYMBOL_GPL(wlcore_probe);
6112 int wlcore_remove(struct platform_device *pdev)
6114 struct wl1271 *wl = platform_get_drvdata(pdev);
6116 wait_for_completion(&wl->nvs_loading_complete);
6117 if (!wl->initialized)
6120 if (wl->irq_wake_enabled) {
6121 device_init_wakeup(wl->dev, 0);
6122 disable_irq_wake(wl->irq);
6124 wl1271_unregister_hw(wl);
6125 free_irq(wl->irq, wl);
6130 EXPORT_SYMBOL_GPL(wlcore_remove);
6132 u32 wl12xx_debug_level = DEBUG_NONE;
6133 EXPORT_SYMBOL_GPL(wl12xx_debug_level);
6134 module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
6135 MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
6137 module_param_named(fwlog, fwlog_param, charp, 0);
6138 MODULE_PARM_DESC(fwlog,
6139 "FW logger options: continuous, ondemand, dbgpins or disable");
6141 module_param(bug_on_recovery, int, S_IRUSR | S_IWUSR);
6142 MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
6144 module_param(no_recovery, int, S_IRUSR | S_IWUSR);
6145 MODULE_PARM_DESC(no_recovery, "Prevent HW recovery. FW will remain stuck.");
6147 MODULE_LICENSE("GPL");
6148 MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
6149 MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
6150 MODULE_FIRMWARE(WL12XX_NVS_NAME);