2 * Copyright (c) 2012-2014 Qualcomm Atheros, Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/moduleparam.h>
18 #include <linux/if_arp.h>
19 #include <linux/etherdevice.h>
25 #define WAIT_FOR_DISCONNECT_TIMEOUT_MS 2000
26 #define WAIT_FOR_DISCONNECT_INTERVAL_MS 10
29 module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR);
30 MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery");
32 static bool no_fw_load = true;
33 module_param(no_fw_load, bool, S_IRUGO | S_IWUSR);
34 MODULE_PARM_DESC(no_fw_load, " do not download FW, use one in on-card flash.");
36 static unsigned int itr_trsh = WIL6210_ITR_TRSH_DEFAULT;
38 module_param(itr_trsh, uint, S_IRUGO);
39 MODULE_PARM_DESC(itr_trsh, " Interrupt moderation threshold, usecs.");
41 #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */
42 #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */
45 * Due to a hardware issue,
46 * one has to read/write to/from NIC in 32-bit chunks;
47 * regular memcpy_fromio and siblings will
48 * not work on 64-bit platform - it uses 64-bit transactions
50 * Force 32-bit transactions to enable NIC on 64-bit platforms
52 * To avoid byte swap on big endian host, __raw_{read|write}l
53 * should be used - {read|write}l would swap bytes to provide
54 * little endian on PCI value in host endianness.
56 void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src,
60 const volatile u32 __iomem *s = src;
62 /* size_t is unsigned, if (count%4 != 0) it will wrap */
63 for (count += 4; count > 4; count -= 4)
64 *d++ = __raw_readl(s++);
67 void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src,
70 volatile u32 __iomem *d = dst;
73 for (count += 4; count > 4; count -= 4)
74 __raw_writel(*s++, d++);
77 static void wil_disconnect_cid(struct wil6210_priv *wil, int cid,
81 struct net_device *ndev = wil_to_ndev(wil);
82 struct wireless_dev *wdev = wil->wdev;
83 struct wil_sta_info *sta = &wil->sta[cid];
85 wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid,
88 sta->data_port_open = false;
89 if (sta->status != wil_sta_unused) {
91 wmi_disconnect_sta(wil, sta->addr,
92 WLAN_REASON_DEAUTH_LEAVING);
94 switch (wdev->iftype) {
95 case NL80211_IFTYPE_AP:
96 case NL80211_IFTYPE_P2P_GO:
97 /* AP-like interface */
98 cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL);
103 sta->status = wil_sta_unused;
106 for (i = 0; i < WIL_STA_TID_NUM; i++) {
107 struct wil_tid_ampdu_rx *r;
110 spin_lock_irqsave(&sta->tid_rx_lock, flags);
113 sta->tid_rx[i] = NULL;
114 wil_tid_ampdu_rx_free(wil, r);
116 spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
118 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
119 if (wil->vring2cid_tid[i][0] == cid)
120 wil_vring_fini_tx(wil, i);
122 memset(&sta->stats, 0, sizeof(sta->stats));
125 static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
129 struct net_device *ndev = wil_to_ndev(wil);
130 struct wireless_dev *wdev = wil->wdev;
134 cid = wil_find_cid(wil, bssid);
135 wil_dbg_misc(wil, "%s(%pM, CID %d)\n", __func__, bssid, cid);
137 wil_dbg_misc(wil, "%s(all)\n", __func__);
140 if (cid >= 0) /* disconnect 1 peer */
141 wil_disconnect_cid(wil, cid, from_event);
142 else /* disconnect all */
143 for (cid = 0; cid < WIL6210_MAX_CID; cid++)
144 wil_disconnect_cid(wil, cid, from_event);
147 switch (wdev->iftype) {
148 case NL80211_IFTYPE_STATION:
149 case NL80211_IFTYPE_P2P_CLIENT:
151 if (test_bit(wil_status_fwconnected, &wil->status)) {
152 clear_bit(wil_status_fwconnected, &wil->status);
153 cfg80211_disconnected(ndev,
154 WLAN_STATUS_UNSPECIFIED_FAILURE,
155 NULL, 0, GFP_KERNEL);
156 } else if (test_bit(wil_status_fwconnecting, &wil->status)) {
157 cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
158 WLAN_STATUS_UNSPECIFIED_FAILURE,
161 clear_bit(wil_status_fwconnecting, &wil->status);
168 static void wil_disconnect_worker(struct work_struct *work)
170 struct wil6210_priv *wil = container_of(work,
171 struct wil6210_priv, disconnect_worker);
173 mutex_lock(&wil->mutex);
174 _wil6210_disconnect(wil, NULL, false);
175 mutex_unlock(&wil->mutex);
178 static void wil_connect_timer_fn(ulong x)
180 struct wil6210_priv *wil = (void *)x;
182 wil_dbg_misc(wil, "Connect timeout\n");
184 /* reschedule to thread context - disconnect won't
185 * run from atomic context
187 schedule_work(&wil->disconnect_worker);
190 static void wil_scan_timer_fn(ulong x)
192 struct wil6210_priv *wil = (void *)x;
194 clear_bit(wil_status_fwready, &wil->status);
195 wil_err(wil, "Scan timeout detected, start fw error recovery\n");
196 schedule_work(&wil->fw_error_worker);
199 static int wil_wait_for_recovery(struct wil6210_priv *wil)
201 if (wait_event_interruptible(wil->wq, wil->recovery_state !=
202 fw_recovery_pending)) {
203 wil_err(wil, "Interrupt, canceling recovery\n");
206 if (wil->recovery_state != fw_recovery_running) {
207 wil_info(wil, "Recovery cancelled\n");
210 wil_info(wil, "Proceed with recovery\n");
214 void wil_set_recovery_state(struct wil6210_priv *wil, int state)
216 wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__,
217 wil->recovery_state, state);
219 wil->recovery_state = state;
220 wake_up_interruptible(&wil->wq);
223 static void wil_fw_error_worker(struct work_struct *work)
225 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
227 struct wireless_dev *wdev = wil->wdev;
229 wil_dbg_misc(wil, "fw error worker\n");
231 if (!netif_running(wil_to_ndev(wil))) {
232 wil_info(wil, "No recovery - interface is down\n");
236 /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
237 * passed since last recovery attempt
239 if (time_is_after_jiffies(wil->last_fw_recovery +
240 WIL6210_FW_RECOVERY_TO))
241 wil->recovery_count++;
243 wil->recovery_count = 1; /* fw was alive for a long time */
245 if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) {
246 wil_err(wil, "too many recovery attempts (%d), giving up\n",
247 wil->recovery_count);
251 wil->last_fw_recovery = jiffies;
253 mutex_lock(&wil->mutex);
254 switch (wdev->iftype) {
255 case NL80211_IFTYPE_STATION:
256 case NL80211_IFTYPE_P2P_CLIENT:
257 case NL80211_IFTYPE_MONITOR:
258 wil_info(wil, "fw error recovery requested (try %d)...\n",
259 wil->recovery_count);
261 wil->recovery_state = fw_recovery_running;
262 if (0 != wil_wait_for_recovery(wil))
268 case NL80211_IFTYPE_AP:
269 case NL80211_IFTYPE_P2P_GO:
270 wil_info(wil, "No recovery for AP-like interface\n");
271 /* recovery in these modes is done by upper layers */
274 wil_err(wil, "No recovery - unknown interface type %d\n",
278 mutex_unlock(&wil->mutex);
281 static int wil_find_free_vring(struct wil6210_priv *wil)
285 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
286 if (!wil->vring_tx[i].va)
292 static void wil_connect_worker(struct work_struct *work)
295 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
297 int cid = wil->pending_connect_cid;
298 int ringid = wil_find_free_vring(wil);
301 wil_err(wil, "No connection pending\n");
305 wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid);
307 rc = wil_vring_init_tx(wil, ringid, WIL6210_TX_RING_SIZE, cid, 0);
308 wil->pending_connect_cid = -1;
310 wil->sta[cid].status = wil_sta_connected;
313 wil->sta[cid].status = wil_sta_unused;
317 int wil_priv_init(struct wil6210_priv *wil)
321 wil_dbg_misc(wil, "%s()\n", __func__);
323 memset(wil->sta, 0, sizeof(wil->sta));
324 for (i = 0; i < WIL6210_MAX_CID; i++)
325 spin_lock_init(&wil->sta[i].tid_rx_lock);
327 mutex_init(&wil->mutex);
328 mutex_init(&wil->wmi_mutex);
330 init_completion(&wil->wmi_ready);
331 init_completion(&wil->wmi_call);
333 wil->pending_connect_cid = -1;
334 setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil);
335 setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil);
337 INIT_WORK(&wil->connect_worker, wil_connect_worker);
338 INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker);
339 INIT_WORK(&wil->wmi_event_worker, wmi_event_worker);
340 INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker);
342 INIT_LIST_HEAD(&wil->pending_wmi_ev);
343 spin_lock_init(&wil->wmi_ev_lock);
344 init_waitqueue_head(&wil->wq);
346 wil->wmi_wq = create_singlethread_workqueue(WIL_NAME"_wmi");
350 wil->wmi_wq_conn = create_singlethread_workqueue(WIL_NAME"_connect");
351 if (!wil->wmi_wq_conn) {
352 destroy_workqueue(wil->wmi_wq);
356 wil->last_fw_recovery = jiffies;
357 wil->itr_trsh = itr_trsh;
363 * wil6210_disconnect - disconnect one connection
364 * @wil: driver context
365 * @bssid: peer to disconnect, NULL to disconnect all
366 * @from_event: whether is invoked from FW event handler
368 * Disconnect and release associated resources. If invoked not from the
369 * FW event handler, issue WMI command(s) to trigger MAC disconnect.
371 void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
374 wil_dbg_misc(wil, "%s()\n", __func__);
376 del_timer_sync(&wil->connect_timer);
377 _wil6210_disconnect(wil, bssid, from_event);
380 void wil_priv_deinit(struct wil6210_priv *wil)
382 wil_dbg_misc(wil, "%s()\n", __func__);
384 wil_set_recovery_state(wil, fw_recovery_idle);
385 del_timer_sync(&wil->scan_timer);
386 cancel_work_sync(&wil->disconnect_worker);
387 cancel_work_sync(&wil->fw_error_worker);
388 mutex_lock(&wil->mutex);
389 wil6210_disconnect(wil, NULL, false);
390 mutex_unlock(&wil->mutex);
391 wmi_event_flush(wil);
392 destroy_workqueue(wil->wmi_wq_conn);
393 destroy_workqueue(wil->wmi_wq);
396 /* target operations */
398 #define R(a) ioread32(wil->csr + HOSTADDR(a))
399 /* register write. wmb() to make sure it is completed */
400 #define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0)
401 /* register set = read, OR, write */
402 #define S(a, v) W(a, R(a) | v)
403 /* register clear = read, AND with inverted, write */
404 #define C(a, v) W(a, R(a) & ~v)
406 static inline void wil_halt_cpu(struct wil6210_priv *wil)
408 W(RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST);
409 W(RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST);
412 static inline void wil_release_cpu(struct wil6210_priv *wil)
415 W(RGF_USER_USER_CPU_0, 1);
418 static int wil_target_reset(struct wil6210_priv *wil)
423 bool is_sparrow = (wil->board->board == WIL_BOARD_SPARROW);
425 wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->board->name);
427 wil->hw_version = R(RGF_USER_FW_REV_ID);
428 rev_id = wil->hw_version & 0xff;
430 /* Clear MAC link up */
431 S(RGF_HP_CTRL, BIT(15));
432 S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD);
433 S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);
438 S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN);
439 /* XTAL stabilization should take about 3ms */
440 usleep_range(5000, 7000);
441 x = R(RGF_CAF_PLL_LOCK_STATUS);
442 if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) {
443 wil_err(wil, "Xtal stabilization timeout\n"
444 "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x);
447 /* switch 10k to XTAL*/
448 C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF);
450 C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL);
452 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f);
453 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf);
456 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000);
457 W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F);
458 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, is_sparrow ? 0x000000f0 : 0x00000170);
459 W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00);
462 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0);
463 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0);
466 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0);
467 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0);
468 W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0);
469 W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
472 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003);
473 /* reset A2 PCIE AHB */
474 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000);
476 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001);
478 /* reset A1 BOTH PCIE AHB & PCIE RGF */
479 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080);
481 W(RGF_PCIE_LOS_COUNTER_CTL, BIT(6) | BIT(8));
482 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000);
486 /* TODO: check order here!!! Erez code is different */
487 W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
489 /* wait until device ready. typical time is 200..250 msec */
492 x = R(RGF_USER_HW_MACHINE_STATE);
493 if (delay++ > RST_COUNT) {
494 wil_err(wil, "Reset not completed, hw_state 0x%08x\n",
498 } while (x != HW_MACHINE_BOOT_DONE);
500 /* TODO: Erez check rev_id != 1 */
501 if (!is_sparrow && (rev_id != 1))
502 W(RGF_PCIE_LOS_COUNTER_CTL, BIT(8));
504 C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
506 wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY);
511 * wil_set_itr_trsh: - apply interrupt coalescing params
513 void wil_set_itr_trsh(struct wil6210_priv *wil)
515 /* disable, use usec resolution */
516 W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EXT_TICK);
518 /* disable interrupt moderation for monitor
519 * to get better timestamp precision
521 if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR)
524 wil_info(wil, "set ITR_TRSH = %d usec\n", wil->itr_trsh);
525 W(RGF_DMA_ITR_CNT_TRSH, wil->itr_trsh);
526 W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EN |
527 BIT_DMA_ITR_CNT_CRL_EXT_TICK); /* start it */
535 void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r)
537 le32_to_cpus(&r->base);
538 le16_to_cpus(&r->entry_size);
539 le16_to_cpus(&r->size);
540 le32_to_cpus(&r->tail);
541 le32_to_cpus(&r->head);
544 static int wil_wait_for_fw_ready(struct wil6210_priv *wil)
546 ulong to = msecs_to_jiffies(1000);
547 ulong left = wait_for_completion_timeout(&wil->wmi_ready, to);
550 wil_err(wil, "Firmware not ready\n");
553 wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n",
554 jiffies_to_msecs(to-left), wil->hw_version);
560 * We reset all the structures, and we reset the UMAC.
561 * After calling this routine, you're expected to reload
564 int wil_reset(struct wil6210_priv *wil)
568 wil_dbg_misc(wil, "%s()\n", __func__);
570 WARN_ON(!mutex_is_locked(&wil->mutex));
571 WARN_ON(test_bit(wil_status_napi_en, &wil->status));
573 cancel_work_sync(&wil->disconnect_worker);
574 wil6210_disconnect(wil, NULL, false);
576 wil->status = 0; /* prevent NAPI from being scheduled */
578 if (wil->scan_request) {
579 wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
581 del_timer_sync(&wil->scan_timer);
582 cfg80211_scan_done(wil->scan_request, true);
583 wil->scan_request = NULL;
588 wmi_event_flush(wil);
590 flush_workqueue(wil->wmi_wq_conn);
591 flush_workqueue(wil->wmi_wq);
593 rc = wil_target_reset(wil);
599 wil_info(wil, "Use firmware <%s>\n", WIL_FW_NAME);
601 /* Loading f/w from the file */
602 rc = wil_request_firmware(wil, WIL_FW_NAME);
606 /* clear any interrupts which on-card-firmware may have set */
607 wil6210_clear_irq(wil);
608 { /* CAF_ICR - clear and mask */
609 u32 a = HOSTADDR(RGF_CAF_ICR) +
610 offsetof(struct RGF_ICR, ICR);
611 u32 m = HOSTADDR(RGF_CAF_ICR) +
612 offsetof(struct RGF_ICR, IMV);
613 u32 icr = ioread32(wil->csr + a);
615 iowrite32(icr, wil->csr + a); /* W1C */
616 iowrite32(~0, wil->csr + m);
617 wmb(); /* wait for completion */
619 wil_release_cpu(wil);
621 wil_info(wil, "Use firmware from on-card flash\n");
624 /* init after reset */
625 wil->pending_connect_cid = -1;
626 reinit_completion(&wil->wmi_ready);
627 reinit_completion(&wil->wmi_call);
631 /* we just started MAC, wait for FW ready */
632 rc = wil_wait_for_fw_ready(wil);
637 void wil_fw_error_recovery(struct wil6210_priv *wil)
639 wil_dbg_misc(wil, "starting fw error recovery\n");
640 wil->recovery_state = fw_recovery_pending;
641 schedule_work(&wil->fw_error_worker);
644 void wil_link_on(struct wil6210_priv *wil)
646 struct net_device *ndev = wil_to_ndev(wil);
648 wil_dbg_misc(wil, "%s()\n", __func__);
650 netif_carrier_on(ndev);
651 wil_dbg_misc(wil, "netif_tx_wake : link on\n");
652 netif_tx_wake_all_queues(ndev);
655 void wil_link_off(struct wil6210_priv *wil)
657 struct net_device *ndev = wil_to_ndev(wil);
659 wil_dbg_misc(wil, "%s()\n", __func__);
661 netif_tx_stop_all_queues(ndev);
662 wil_dbg_misc(wil, "netif_tx_stop : link off\n");
663 netif_carrier_off(ndev);
666 int __wil_up(struct wil6210_priv *wil)
668 struct net_device *ndev = wil_to_ndev(wil);
669 struct wireless_dev *wdev = wil->wdev;
672 WARN_ON(!mutex_is_locked(&wil->mutex));
678 /* Rx VRING. After MAC and beacon */
679 rc = wil_rx_init(wil);
683 switch (wdev->iftype) {
684 case NL80211_IFTYPE_STATION:
685 wil_dbg_misc(wil, "type: STATION\n");
686 ndev->type = ARPHRD_ETHER;
688 case NL80211_IFTYPE_AP:
689 wil_dbg_misc(wil, "type: AP\n");
690 ndev->type = ARPHRD_ETHER;
692 case NL80211_IFTYPE_P2P_CLIENT:
693 wil_dbg_misc(wil, "type: P2P_CLIENT\n");
694 ndev->type = ARPHRD_ETHER;
696 case NL80211_IFTYPE_P2P_GO:
697 wil_dbg_misc(wil, "type: P2P_GO\n");
698 ndev->type = ARPHRD_ETHER;
700 case NL80211_IFTYPE_MONITOR:
701 wil_dbg_misc(wil, "type: Monitor\n");
702 ndev->type = ARPHRD_IEEE80211_RADIOTAP;
703 /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
709 /* MAC address - pre-requisite for other commands */
710 wmi_set_mac_address(wil, ndev->dev_addr);
712 wil_dbg_misc(wil, "NAPI enable\n");
713 napi_enable(&wil->napi_rx);
714 napi_enable(&wil->napi_tx);
715 set_bit(wil_status_napi_en, &wil->status);
717 if (wil->platform_ops.bus_request)
718 wil->platform_ops.bus_request(wil->platform_handle,
719 WIL_MAX_BUS_REQUEST_KBPS);
724 int wil_up(struct wil6210_priv *wil)
728 wil_dbg_misc(wil, "%s()\n", __func__);
730 mutex_lock(&wil->mutex);
732 mutex_unlock(&wil->mutex);
737 int __wil_down(struct wil6210_priv *wil)
739 int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS /
740 WAIT_FOR_DISCONNECT_INTERVAL_MS;
742 WARN_ON(!mutex_is_locked(&wil->mutex));
744 if (wil->platform_ops.bus_request)
745 wil->platform_ops.bus_request(wil->platform_handle, 0);
747 wil_disable_irq(wil);
748 if (test_and_clear_bit(wil_status_napi_en, &wil->status)) {
749 napi_disable(&wil->napi_rx);
750 napi_disable(&wil->napi_tx);
751 wil_dbg_misc(wil, "NAPI disable\n");
755 if (wil->scan_request) {
756 wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
758 del_timer_sync(&wil->scan_timer);
759 cfg80211_scan_done(wil->scan_request, true);
760 wil->scan_request = NULL;
763 if (test_bit(wil_status_fwconnected, &wil->status) ||
764 test_bit(wil_status_fwconnecting, &wil->status))
765 wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
767 /* make sure wil is idle (not connected) */
768 mutex_unlock(&wil->mutex);
770 int idle = !test_bit(wil_status_fwconnected, &wil->status) &&
771 !test_bit(wil_status_fwconnecting, &wil->status);
774 msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS);
776 mutex_lock(&wil->mutex);
779 wil_err(wil, "timeout waiting for idle FW/HW\n");
786 int wil_down(struct wil6210_priv *wil)
790 wil_dbg_misc(wil, "%s()\n", __func__);
792 wil_set_recovery_state(wil, fw_recovery_idle);
793 mutex_lock(&wil->mutex);
794 rc = __wil_down(wil);
795 mutex_unlock(&wil->mutex);
800 int wil_find_cid(struct wil6210_priv *wil, const u8 *mac)
805 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
806 if ((wil->sta[i].status != wil_sta_unused) &&
807 ether_addr_equal(wil->sta[i].addr, mac)) {