2 * Copyright (c) 2012-2015 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
28 bool debug_fw; /* = false; */
29 module_param(debug_fw, bool, S_IRUGO);
30 MODULE_PARM_DESC(debug_fw, " do not perform card reset. For FW debug");
33 module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR);
34 MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery");
36 /* if not set via modparam, will be set to default value of 1/8 of
37 * rx ring size during init flow
39 unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT;
40 module_param(rx_ring_overflow_thrsh, ushort, S_IRUGO);
41 MODULE_PARM_DESC(rx_ring_overflow_thrsh,
42 " RX ring overflow threshold in descriptors.");
44 /* We allow allocation of more than 1 page buffers to support large packets.
45 * It is suboptimal behavior performance wise in case MTU above page size.
47 unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD;
48 static int mtu_max_set(const char *val, const struct kernel_param *kp)
52 /* sets mtu_max directly. no need to restore it in case of
53 * illegal value since we assume this will fail insmod
55 ret = param_set_uint(val, kp);
59 if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU)
65 static const struct kernel_param_ops mtu_max_ops = {
67 .get = param_get_uint,
70 module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO);
71 MODULE_PARM_DESC(mtu_max, " Max MTU value.");
73 static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT;
74 static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT;
75 static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT;
77 static int ring_order_set(const char *val, const struct kernel_param *kp)
82 ret = kstrtouint(val, 0, &x);
86 if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX))
89 *((uint *)kp->arg) = x;
94 static const struct kernel_param_ops ring_order_ops = {
95 .set = ring_order_set,
96 .get = param_get_uint,
99 module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, S_IRUGO);
100 MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order");
101 module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, S_IRUGO);
102 MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order");
103 module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, S_IRUGO);
104 MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order");
106 #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */
107 #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */
110 * Due to a hardware issue,
111 * one has to read/write to/from NIC in 32-bit chunks;
112 * regular memcpy_fromio and siblings will
113 * not work on 64-bit platform - it uses 64-bit transactions
115 * Force 32-bit transactions to enable NIC on 64-bit platforms
117 * To avoid byte swap on big endian host, __raw_{read|write}l
118 * should be used - {read|write}l would swap bytes to provide
119 * little endian on PCI value in host endianness.
121 void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src,
125 const volatile u32 __iomem *s = src;
127 /* size_t is unsigned, if (count%4 != 0) it will wrap */
128 for (count += 4; count > 4; count -= 4)
129 *d++ = __raw_readl(s++);
132 void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src,
135 volatile u32 __iomem *d = dst;
138 for (count += 4; count > 4; count -= 4)
139 __raw_writel(*s++, d++);
142 static void wil_disconnect_cid(struct wil6210_priv *wil, int cid,
143 u16 reason_code, bool from_event)
144 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
147 struct net_device *ndev = wil_to_ndev(wil);
148 struct wireless_dev *wdev = wil->wdev;
149 struct wil_sta_info *sta = &wil->sta[cid];
152 wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid,
155 if (sta->status != wil_sta_unused) {
157 wmi_disconnect_sta(wil, sta->addr, reason_code);
159 switch (wdev->iftype) {
160 case NL80211_IFTYPE_AP:
161 case NL80211_IFTYPE_P2P_GO:
162 /* AP-like interface */
163 cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL);
168 sta->status = wil_sta_unused;
171 for (i = 0; i < WIL_STA_TID_NUM; i++) {
172 struct wil_tid_ampdu_rx *r;
174 spin_lock_bh(&sta->tid_rx_lock);
177 sta->tid_rx[i] = NULL;
178 wil_tid_ampdu_rx_free(wil, r);
180 spin_unlock_bh(&sta->tid_rx_lock);
182 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
183 if (wil->vring2cid_tid[i][0] == cid)
184 wil_vring_fini_tx(wil, i);
186 memset(&sta->stats, 0, sizeof(sta->stats));
189 static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
190 u16 reason_code, bool from_event)
193 struct net_device *ndev = wil_to_ndev(wil);
194 struct wireless_dev *wdev = wil->wdev;
197 wil_dbg_misc(wil, "%s(bssid=%pM, reason=%d, ev%s)\n", __func__, bssid,
198 reason_code, from_event ? "+" : "-");
201 * - disconnect single STA, still connected
202 * - disconnect single STA, already disconnected
205 * For "disconnect all", there are 2 options:
207 * - bssid is our MAC address
209 if (bssid && memcmp(ndev->dev_addr, bssid, ETH_ALEN)) {
210 cid = wil_find_cid(wil, bssid);
211 wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n",
212 bssid, cid, reason_code);
213 if (cid >= 0) /* disconnect 1 peer */
214 wil_disconnect_cid(wil, cid, reason_code, from_event);
216 wil_dbg_misc(wil, "Disconnect all\n");
217 for (cid = 0; cid < WIL6210_MAX_CID; cid++)
218 wil_disconnect_cid(wil, cid, reason_code, from_event);
222 switch (wdev->iftype) {
223 case NL80211_IFTYPE_STATION:
224 case NL80211_IFTYPE_P2P_CLIENT:
226 netif_tx_stop_all_queues(ndev);
227 netif_carrier_off(ndev);
229 if (test_bit(wil_status_fwconnected, wil->status)) {
230 clear_bit(wil_status_fwconnected, wil->status);
231 cfg80211_disconnected(ndev, reason_code,
232 NULL, 0, false, GFP_KERNEL);
233 } else if (test_bit(wil_status_fwconnecting, wil->status)) {
234 cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
235 WLAN_STATUS_UNSPECIFIED_FAILURE,
238 clear_bit(wil_status_fwconnecting, wil->status);
245 static void wil_disconnect_worker(struct work_struct *work)
247 struct wil6210_priv *wil = container_of(work,
248 struct wil6210_priv, disconnect_worker);
250 mutex_lock(&wil->mutex);
251 _wil6210_disconnect(wil, NULL, WLAN_REASON_UNSPECIFIED, false);
252 mutex_unlock(&wil->mutex);
255 static void wil_connect_timer_fn(ulong x)
257 struct wil6210_priv *wil = (void *)x;
259 wil_dbg_misc(wil, "Connect timeout\n");
261 /* reschedule to thread context - disconnect won't
262 * run from atomic context
264 schedule_work(&wil->disconnect_worker);
267 static void wil_scan_timer_fn(ulong x)
269 struct wil6210_priv *wil = (void *)x;
271 clear_bit(wil_status_fwready, wil->status);
272 wil_err(wil, "Scan timeout detected, start fw error recovery\n");
273 wil->recovery_state = fw_recovery_pending;
274 schedule_work(&wil->fw_error_worker);
277 static int wil_wait_for_recovery(struct wil6210_priv *wil)
279 if (wait_event_interruptible(wil->wq, wil->recovery_state !=
280 fw_recovery_pending)) {
281 wil_err(wil, "Interrupt, canceling recovery\n");
284 if (wil->recovery_state != fw_recovery_running) {
285 wil_info(wil, "Recovery cancelled\n");
288 wil_info(wil, "Proceed with recovery\n");
292 void wil_set_recovery_state(struct wil6210_priv *wil, int state)
294 wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__,
295 wil->recovery_state, state);
297 wil->recovery_state = state;
298 wake_up_interruptible(&wil->wq);
301 static void wil_fw_error_worker(struct work_struct *work)
303 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
305 struct wireless_dev *wdev = wil->wdev;
307 wil_dbg_misc(wil, "fw error worker\n");
309 if (!netif_running(wil_to_ndev(wil))) {
310 wil_info(wil, "No recovery - interface is down\n");
314 /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
315 * passed since last recovery attempt
317 if (time_is_after_jiffies(wil->last_fw_recovery +
318 WIL6210_FW_RECOVERY_TO))
319 wil->recovery_count++;
321 wil->recovery_count = 1; /* fw was alive for a long time */
323 if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) {
324 wil_err(wil, "too many recovery attempts (%d), giving up\n",
325 wil->recovery_count);
329 wil->last_fw_recovery = jiffies;
331 mutex_lock(&wil->mutex);
332 switch (wdev->iftype) {
333 case NL80211_IFTYPE_STATION:
334 case NL80211_IFTYPE_P2P_CLIENT:
335 case NL80211_IFTYPE_MONITOR:
336 wil_info(wil, "fw error recovery requested (try %d)...\n",
337 wil->recovery_count);
339 wil->recovery_state = fw_recovery_running;
340 if (0 != wil_wait_for_recovery(wil))
346 case NL80211_IFTYPE_AP:
347 case NL80211_IFTYPE_P2P_GO:
348 wil_info(wil, "No recovery for AP-like interface\n");
349 /* recovery in these modes is done by upper layers */
352 wil_err(wil, "No recovery - unknown interface type %d\n",
356 mutex_unlock(&wil->mutex);
359 static int wil_find_free_vring(struct wil6210_priv *wil)
363 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
364 if (!wil->vring_tx[i].va)
370 int wil_bcast_init(struct wil6210_priv *wil)
372 int ri = wil->bcast_vring, rc;
374 if ((ri >= 0) && wil->vring_tx[ri].va)
377 ri = wil_find_free_vring(wil);
381 wil->bcast_vring = ri;
382 rc = wil_vring_init_bcast(wil, ri, 1 << bcast_ring_order);
384 wil->bcast_vring = -1;
389 void wil_bcast_fini(struct wil6210_priv *wil)
391 int ri = wil->bcast_vring;
396 wil->bcast_vring = -1;
397 wil_vring_fini_tx(wil, ri);
400 static void wil_connect_worker(struct work_struct *work)
403 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
405 struct net_device *ndev = wil_to_ndev(wil);
407 int cid = wil->pending_connect_cid;
408 int ringid = wil_find_free_vring(wil);
411 wil_err(wil, "No connection pending\n");
415 wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid);
417 rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0);
418 wil->pending_connect_cid = -1;
420 wil->sta[cid].status = wil_sta_connected;
421 netif_tx_wake_all_queues(ndev);
423 wil->sta[cid].status = wil_sta_unused;
427 int wil_priv_init(struct wil6210_priv *wil)
431 wil_dbg_misc(wil, "%s()\n", __func__);
433 memset(wil->sta, 0, sizeof(wil->sta));
434 for (i = 0; i < WIL6210_MAX_CID; i++)
435 spin_lock_init(&wil->sta[i].tid_rx_lock);
437 mutex_init(&wil->mutex);
438 mutex_init(&wil->wmi_mutex);
439 mutex_init(&wil->back_rx_mutex);
440 mutex_init(&wil->back_tx_mutex);
441 mutex_init(&wil->probe_client_mutex);
443 init_completion(&wil->wmi_ready);
444 init_completion(&wil->wmi_call);
446 wil->pending_connect_cid = -1;
447 wil->bcast_vring = -1;
448 setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil);
449 setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil);
451 INIT_WORK(&wil->connect_worker, wil_connect_worker);
452 INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker);
453 INIT_WORK(&wil->wmi_event_worker, wmi_event_worker);
454 INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker);
455 INIT_WORK(&wil->back_rx_worker, wil_back_rx_worker);
456 INIT_WORK(&wil->back_tx_worker, wil_back_tx_worker);
457 INIT_WORK(&wil->probe_client_worker, wil_probe_client_worker);
459 INIT_LIST_HEAD(&wil->pending_wmi_ev);
460 INIT_LIST_HEAD(&wil->back_rx_pending);
461 INIT_LIST_HEAD(&wil->back_tx_pending);
462 INIT_LIST_HEAD(&wil->probe_client_pending);
463 spin_lock_init(&wil->wmi_ev_lock);
464 init_waitqueue_head(&wil->wq);
466 wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi");
470 wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service");
471 if (!wil->wq_service)
474 wil->last_fw_recovery = jiffies;
475 wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT;
476 wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT;
477 wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT;
478 wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT;
480 if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT)
481 rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT;
485 destroy_workqueue(wil->wmi_wq);
491 * wil6210_disconnect - disconnect one connection
492 * @wil: driver context
493 * @bssid: peer to disconnect, NULL to disconnect all
494 * @reason_code: Reason code for the Disassociation frame
495 * @from_event: whether is invoked from FW event handler
497 * Disconnect and release associated resources. If invoked not from the
498 * FW event handler, issue WMI command(s) to trigger MAC disconnect.
500 void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
501 u16 reason_code, bool from_event)
503 wil_dbg_misc(wil, "%s()\n", __func__);
505 del_timer_sync(&wil->connect_timer);
506 _wil6210_disconnect(wil, bssid, reason_code, from_event);
509 void wil_priv_deinit(struct wil6210_priv *wil)
511 wil_dbg_misc(wil, "%s()\n", __func__);
513 wil_set_recovery_state(wil, fw_recovery_idle);
514 del_timer_sync(&wil->scan_timer);
515 cancel_work_sync(&wil->disconnect_worker);
516 cancel_work_sync(&wil->fw_error_worker);
517 mutex_lock(&wil->mutex);
518 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
519 mutex_unlock(&wil->mutex);
520 wmi_event_flush(wil);
521 wil_back_rx_flush(wil);
522 cancel_work_sync(&wil->back_rx_worker);
523 wil_back_tx_flush(wil);
524 cancel_work_sync(&wil->back_tx_worker);
525 wil_probe_client_flush(wil);
526 cancel_work_sync(&wil->probe_client_worker);
527 destroy_workqueue(wil->wq_service);
528 destroy_workqueue(wil->wmi_wq);
531 /* target operations */
533 #define R(a) ioread32(wil->csr + HOSTADDR(a))
534 /* register write. wmb() to make sure it is completed */
535 #define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0)
536 /* register set = read, OR, write */
537 #define S(a, v) W(a, R(a) | v)
538 /* register clear = read, AND with inverted, write */
539 #define C(a, v) W(a, R(a) & ~v)
541 static inline void wil_halt_cpu(struct wil6210_priv *wil)
543 W(RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST);
544 W(RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST);
547 static inline void wil_release_cpu(struct wil6210_priv *wil)
550 W(RGF_USER_USER_CPU_0, 1);
553 static int wil_target_reset(struct wil6210_priv *wil)
558 wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name);
560 /* Clear MAC link up */
561 S(RGF_HP_CTRL, BIT(15));
562 S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD);
563 S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);
567 /* clear all boot loader "ready" bits */
568 W(RGF_USER_BL + offsetof(struct RGF_BL, ready), 0);
569 /* Clear Fw Download notification */
570 C(RGF_USER_USAGE_6, BIT(0));
572 S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN);
573 /* XTAL stabilization should take about 3ms */
574 usleep_range(5000, 7000);
575 x = R(RGF_CAF_PLL_LOCK_STATUS);
576 if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) {
577 wil_err(wil, "Xtal stabilization timeout\n"
578 "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x);
581 /* switch 10k to XTAL*/
582 C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF);
584 C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL);
586 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f);
587 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf);
589 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000);
590 W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F);
591 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x000000f0);
592 W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00);
594 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0);
595 W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0);
597 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0);
598 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0);
599 W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0);
600 W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
602 W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003);
603 W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); /* reset A2 PCIE AHB */
605 W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
607 /* wait until device ready. typical time is 20..80 msec */
610 x = R(RGF_USER_BL + offsetof(struct RGF_BL, ready));
612 wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", x1, x);
615 if (delay++ > RST_COUNT) {
616 wil_err(wil, "Reset not completed, bl.ready 0x%08x\n",
620 } while (x != BIT_BL_READY);
622 C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
624 /* enable fix for HW bug related to the SA/DA swap in AP Rx */
625 S(RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN |
626 BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC);
628 wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY);
632 void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r)
634 le32_to_cpus(&r->base);
635 le16_to_cpus(&r->entry_size);
636 le16_to_cpus(&r->size);
637 le32_to_cpus(&r->tail);
638 le32_to_cpus(&r->head);
641 static int wil_get_bl_info(struct wil6210_priv *wil)
643 struct net_device *ndev = wil_to_ndev(wil);
646 wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), sizeof(bl));
647 le32_to_cpus(&bl.ready);
648 le32_to_cpus(&bl.version);
649 le32_to_cpus(&bl.rf_type);
650 le32_to_cpus(&bl.baseband_type);
652 if (!is_valid_ether_addr(bl.mac_address)) {
653 wil_err(wil, "BL: Invalid MAC %pM\n", bl.mac_address);
657 ether_addr_copy(ndev->perm_addr, bl.mac_address);
658 if (!is_valid_ether_addr(ndev->dev_addr))
659 ether_addr_copy(ndev->dev_addr, bl.mac_address);
661 "Boot Loader: ver = %d MAC = %pM RF = 0x%08x bband = 0x%08x\n",
662 bl.version, bl.mac_address, bl.rf_type, bl.baseband_type);
667 static int wil_wait_for_fw_ready(struct wil6210_priv *wil)
669 ulong to = msecs_to_jiffies(1000);
670 ulong left = wait_for_completion_timeout(&wil->wmi_ready, to);
673 wil_err(wil, "Firmware not ready\n");
676 wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n",
677 jiffies_to_msecs(to-left), wil->hw_version);
683 * We reset all the structures, and we reset the UMAC.
684 * After calling this routine, you're expected to reload
687 int wil_reset(struct wil6210_priv *wil, bool load_fw)
691 wil_dbg_misc(wil, "%s()\n", __func__);
693 if (wil->hw_version == HW_VER_UNKNOWN)
696 WARN_ON(!mutex_is_locked(&wil->mutex));
697 WARN_ON(test_bit(wil_status_napi_en, wil->status));
700 static const u8 mac[ETH_ALEN] = {
701 0x00, 0xde, 0xad, 0x12, 0x34, 0x56,
703 struct net_device *ndev = wil_to_ndev(wil);
705 ether_addr_copy(ndev->perm_addr, mac);
706 ether_addr_copy(ndev->dev_addr, ndev->perm_addr);
710 cancel_work_sync(&wil->disconnect_worker);
711 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
714 /* prevent NAPI from being scheduled */
715 bitmap_zero(wil->status, wil_status_last);
717 if (wil->scan_request) {
718 wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
720 del_timer_sync(&wil->scan_timer);
721 cfg80211_scan_done(wil->scan_request, true);
722 wil->scan_request = NULL;
727 wmi_event_flush(wil);
729 flush_workqueue(wil->wq_service);
730 flush_workqueue(wil->wmi_wq);
732 rc = wil_target_reset(wil);
737 rc = wil_get_bl_info(wil);
742 wil_info(wil, "Use firmware <%s> + board <%s>\n", WIL_FW_NAME,
746 /* Loading f/w from the file */
747 rc = wil_request_firmware(wil, WIL_FW_NAME);
750 rc = wil_request_firmware(wil, WIL_FW2_NAME);
754 /* Mark FW as loaded from host */
755 S(RGF_USER_USAGE_6, 1);
757 /* clear any interrupts which on-card-firmware
760 wil6210_clear_irq(wil);
761 /* CAF_ICR - clear and mask */
762 /* it is W1C, clear by writing back same value */
763 S(RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0);
764 W(RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0);
766 wil_release_cpu(wil);
769 /* init after reset */
770 wil->pending_connect_cid = -1;
772 reinit_completion(&wil->wmi_ready);
773 reinit_completion(&wil->wmi_call);
776 wil_configure_interrupt_moderation(wil);
779 /* we just started MAC, wait for FW ready */
780 rc = wil_wait_for_fw_ready(wil);
781 if (rc == 0) /* check FW is responsive */
793 void wil_fw_error_recovery(struct wil6210_priv *wil)
795 wil_dbg_misc(wil, "starting fw error recovery\n");
796 wil->recovery_state = fw_recovery_pending;
797 schedule_work(&wil->fw_error_worker);
800 int __wil_up(struct wil6210_priv *wil)
802 struct net_device *ndev = wil_to_ndev(wil);
803 struct wireless_dev *wdev = wil->wdev;
806 WARN_ON(!mutex_is_locked(&wil->mutex));
808 rc = wil_reset(wil, true);
812 /* Rx VRING. After MAC and beacon */
813 rc = wil_rx_init(wil, 1 << rx_ring_order);
817 switch (wdev->iftype) {
818 case NL80211_IFTYPE_STATION:
819 wil_dbg_misc(wil, "type: STATION\n");
820 ndev->type = ARPHRD_ETHER;
822 case NL80211_IFTYPE_AP:
823 wil_dbg_misc(wil, "type: AP\n");
824 ndev->type = ARPHRD_ETHER;
826 case NL80211_IFTYPE_P2P_CLIENT:
827 wil_dbg_misc(wil, "type: P2P_CLIENT\n");
828 ndev->type = ARPHRD_ETHER;
830 case NL80211_IFTYPE_P2P_GO:
831 wil_dbg_misc(wil, "type: P2P_GO\n");
832 ndev->type = ARPHRD_ETHER;
834 case NL80211_IFTYPE_MONITOR:
835 wil_dbg_misc(wil, "type: Monitor\n");
836 ndev->type = ARPHRD_IEEE80211_RADIOTAP;
837 /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
843 /* MAC address - pre-requisite for other commands */
844 wmi_set_mac_address(wil, ndev->dev_addr);
846 wil_dbg_misc(wil, "NAPI enable\n");
847 napi_enable(&wil->napi_rx);
848 napi_enable(&wil->napi_tx);
849 set_bit(wil_status_napi_en, wil->status);
851 if (wil->platform_ops.bus_request)
852 wil->platform_ops.bus_request(wil->platform_handle,
853 WIL_MAX_BUS_REQUEST_KBPS);
858 int wil_up(struct wil6210_priv *wil)
862 wil_dbg_misc(wil, "%s()\n", __func__);
864 mutex_lock(&wil->mutex);
866 mutex_unlock(&wil->mutex);
871 int __wil_down(struct wil6210_priv *wil)
873 int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS /
874 WAIT_FOR_DISCONNECT_INTERVAL_MS;
876 WARN_ON(!mutex_is_locked(&wil->mutex));
878 if (wil->platform_ops.bus_request)
879 wil->platform_ops.bus_request(wil->platform_handle, 0);
881 wil_disable_irq(wil);
882 if (test_and_clear_bit(wil_status_napi_en, wil->status)) {
883 napi_disable(&wil->napi_rx);
884 napi_disable(&wil->napi_tx);
885 wil_dbg_misc(wil, "NAPI disable\n");
889 if (wil->scan_request) {
890 wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
892 del_timer_sync(&wil->scan_timer);
893 cfg80211_scan_done(wil->scan_request, true);
894 wil->scan_request = NULL;
897 if (test_bit(wil_status_fwconnected, wil->status) ||
898 test_bit(wil_status_fwconnecting, wil->status))
899 wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
901 /* make sure wil is idle (not connected) */
902 mutex_unlock(&wil->mutex);
904 int idle = !test_bit(wil_status_fwconnected, wil->status) &&
905 !test_bit(wil_status_fwconnecting, wil->status);
908 msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS);
910 mutex_lock(&wil->mutex);
913 wil_err(wil, "timeout waiting for idle FW/HW\n");
915 wil_reset(wil, false);
920 int wil_down(struct wil6210_priv *wil)
924 wil_dbg_misc(wil, "%s()\n", __func__);
926 wil_set_recovery_state(wil, fw_recovery_idle);
927 mutex_lock(&wil->mutex);
928 rc = __wil_down(wil);
929 mutex_unlock(&wil->mutex);
934 int wil_find_cid(struct wil6210_priv *wil, const u8 *mac)
939 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
940 if ((wil->sta[i].status != wil_sta_unused) &&
941 ether_addr_equal(wil->sta[i].addr, mac)) {