2 * Copyright (c) 2012-2017 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>
24 #include "boot_loader.h"
26 #define WAIT_FOR_HALP_VOTE_MS 100
27 #define WAIT_FOR_SCAN_ABORT_MS 1000
29 bool debug_fw; /* = false; */
30 module_param(debug_fw, bool, 0444);
31 MODULE_PARM_DESC(debug_fw, " do not perform card reset. For FW debug");
34 module_param(oob_mode, byte, 0444);
35 MODULE_PARM_DESC(oob_mode,
36 " enable out of the box (OOB) mode in FW, for diagnostics and certification");
39 module_param(no_fw_recovery, bool, 0644);
40 MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery");
42 /* if not set via modparam, will be set to default value of 1/8 of
43 * rx ring size during init flow
45 unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT;
46 module_param(rx_ring_overflow_thrsh, ushort, 0444);
47 MODULE_PARM_DESC(rx_ring_overflow_thrsh,
48 " RX ring overflow threshold in descriptors.");
50 /* We allow allocation of more than 1 page buffers to support large packets.
51 * It is suboptimal behavior performance wise in case MTU above page size.
53 unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD;
54 static int mtu_max_set(const char *val, const struct kernel_param *kp)
58 /* sets mtu_max directly. no need to restore it in case of
59 * illegal value since we assume this will fail insmod
61 ret = param_set_uint(val, kp);
65 if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU)
71 static const struct kernel_param_ops mtu_max_ops = {
73 .get = param_get_uint,
76 module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, 0444);
77 MODULE_PARM_DESC(mtu_max, " Max MTU value.");
79 static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT;
80 static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT;
81 static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT;
83 static int ring_order_set(const char *val, const struct kernel_param *kp)
88 ret = kstrtouint(val, 0, &x);
92 if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX))
95 *((uint *)kp->arg) = x;
100 static const struct kernel_param_ops ring_order_ops = {
101 .set = ring_order_set,
102 .get = param_get_uint,
105 module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, 0444);
106 MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order");
107 module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, 0444);
108 MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order");
109 module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, 0444);
110 MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order");
112 #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */
113 #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */
116 * Due to a hardware issue,
117 * one has to read/write to/from NIC in 32-bit chunks;
118 * regular memcpy_fromio and siblings will
119 * not work on 64-bit platform - it uses 64-bit transactions
121 * Force 32-bit transactions to enable NIC on 64-bit platforms
123 * To avoid byte swap on big endian host, __raw_{read|write}l
124 * should be used - {read|write}l would swap bytes to provide
125 * little endian on PCI value in host endianness.
127 void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src,
131 const volatile u32 __iomem *s = src;
133 for (; count >= 4; count -= 4)
134 *d++ = __raw_readl(s++);
136 if (unlikely(count)) {
137 /* count can be 1..3 */
138 u32 tmp = __raw_readl(s);
140 memcpy(d, &tmp, count);
144 void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src,
147 volatile u32 __iomem *d = dst;
150 for (; count >= 4; count -= 4)
151 __raw_writel(*s++, d++);
153 if (unlikely(count)) {
154 /* count can be 1..3 */
157 memcpy(&tmp, s, count);
158 __raw_writel(tmp, d);
162 static void wil_disconnect_cid(struct wil6210_priv *wil, int cid,
163 u16 reason_code, bool from_event)
164 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
167 struct net_device *ndev = wil_to_ndev(wil);
168 struct wireless_dev *wdev = wil->wdev;
169 struct wil_sta_info *sta = &wil->sta[cid];
172 wil_dbg_misc(wil, "disconnect_cid: CID %d, status %d\n",
174 /* inform upper/lower layers */
175 if (sta->status != wil_sta_unused) {
177 bool del_sta = (wdev->iftype == NL80211_IFTYPE_AP) ?
178 disable_ap_sme : false;
179 wmi_disconnect_sta(wil, sta->addr, reason_code,
183 switch (wdev->iftype) {
184 case NL80211_IFTYPE_AP:
185 case NL80211_IFTYPE_P2P_GO:
186 /* AP-like interface */
187 cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL);
192 sta->status = wil_sta_unused;
194 /* reorder buffers */
195 for (i = 0; i < WIL_STA_TID_NUM; i++) {
196 struct wil_tid_ampdu_rx *r;
198 spin_lock_bh(&sta->tid_rx_lock);
201 sta->tid_rx[i] = NULL;
202 wil_tid_ampdu_rx_free(wil, r);
204 spin_unlock_bh(&sta->tid_rx_lock);
207 memset(sta->tid_crypto_rx, 0, sizeof(sta->tid_crypto_rx));
208 memset(&sta->group_crypto_rx, 0, sizeof(sta->group_crypto_rx));
210 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
211 if (wil->vring2cid_tid[i][0] == cid)
212 wil_vring_fini_tx(wil, i);
215 memset(&sta->stats, 0, sizeof(sta->stats));
218 static bool wil_is_connected(struct wil6210_priv *wil)
222 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
223 if (wil->sta[i].status == wil_sta_connected)
230 static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
231 u16 reason_code, bool from_event)
234 struct net_device *ndev = wil_to_ndev(wil);
235 struct wireless_dev *wdev = wil->wdev;
241 wil_info(wil, "bssid=%pM, reason=%d, ev%s\n", bssid,
242 reason_code, from_event ? "+" : "-");
245 * - disconnect single STA, still connected
246 * - disconnect single STA, already disconnected
249 * For "disconnect all", there are 3 options:
251 * - bssid is broadcast address (ff:ff:ff:ff:ff:ff)
252 * - bssid is our MAC address
254 if (bssid && !is_broadcast_ether_addr(bssid) &&
255 !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) {
256 cid = wil_find_cid(wil, bssid);
257 wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n",
258 bssid, cid, reason_code);
259 if (cid >= 0) /* disconnect 1 peer */
260 wil_disconnect_cid(wil, cid, reason_code, from_event);
262 wil_dbg_misc(wil, "Disconnect all\n");
263 for (cid = 0; cid < WIL6210_MAX_CID; cid++)
264 wil_disconnect_cid(wil, cid, reason_code, from_event);
268 switch (wdev->iftype) {
269 case NL80211_IFTYPE_STATION:
270 case NL80211_IFTYPE_P2P_CLIENT:
272 wil_update_net_queues_bh(wil, NULL, true);
273 netif_carrier_off(ndev);
274 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS);
276 if (test_bit(wil_status_fwconnected, wil->status)) {
277 clear_bit(wil_status_fwconnected, wil->status);
278 cfg80211_disconnected(ndev, reason_code,
280 wil->locally_generated_disc,
282 wil->locally_generated_disc = false;
283 } else if (test_bit(wil_status_fwconnecting, wil->status)) {
284 cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
285 WLAN_STATUS_UNSPECIFIED_FAILURE,
289 clear_bit(wil_status_fwconnecting, wil->status);
291 case NL80211_IFTYPE_AP:
292 case NL80211_IFTYPE_P2P_GO:
293 if (!wil_is_connected(wil)) {
294 wil_update_net_queues_bh(wil, NULL, true);
295 clear_bit(wil_status_fwconnected, wil->status);
297 wil_update_net_queues_bh(wil, NULL, false);
305 static void wil_disconnect_worker(struct work_struct *work)
307 struct wil6210_priv *wil = container_of(work,
308 struct wil6210_priv, disconnect_worker);
309 struct net_device *ndev = wil_to_ndev(wil);
312 struct wmi_cmd_hdr wmi;
313 struct wmi_disconnect_event evt;
316 if (test_bit(wil_status_fwconnected, wil->status))
317 /* connect succeeded after all */
320 if (!test_bit(wil_status_fwconnecting, wil->status))
321 /* already disconnected */
324 rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
325 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply),
326 WIL6210_DISCONNECT_TO_MS);
328 wil_err(wil, "disconnect error %d\n", rc);
332 wil_update_net_queues_bh(wil, NULL, true);
333 netif_carrier_off(ndev);
334 cfg80211_connect_result(ndev, NULL, NULL, 0, NULL, 0,
335 WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL);
336 clear_bit(wil_status_fwconnecting, wil->status);
339 static void wil_connect_timer_fn(ulong x)
341 struct wil6210_priv *wil = (void *)x;
344 wil_err(wil, "Connect timeout detected, disconnect station\n");
346 /* reschedule to thread context - disconnect won't
347 * run from atomic context.
348 * queue on wmi_wq to prevent race with connect event.
350 q = queue_work(wil->wmi_wq, &wil->disconnect_worker);
351 wil_dbg_wmi(wil, "queue_work of disconnect_worker -> %d\n", q);
354 static void wil_scan_timer_fn(ulong x)
356 struct wil6210_priv *wil = (void *)x;
358 clear_bit(wil_status_fwready, wil->status);
359 wil_err(wil, "Scan timeout detected, start fw error recovery\n");
360 wil_fw_error_recovery(wil);
363 static int wil_wait_for_recovery(struct wil6210_priv *wil)
365 if (wait_event_interruptible(wil->wq, wil->recovery_state !=
366 fw_recovery_pending)) {
367 wil_err(wil, "Interrupt, canceling recovery\n");
370 if (wil->recovery_state != fw_recovery_running) {
371 wil_info(wil, "Recovery cancelled\n");
374 wil_info(wil, "Proceed with recovery\n");
378 void wil_set_recovery_state(struct wil6210_priv *wil, int state)
380 wil_dbg_misc(wil, "set_recovery_state: %d -> %d\n",
381 wil->recovery_state, state);
383 wil->recovery_state = state;
384 wake_up_interruptible(&wil->wq);
387 bool wil_is_recovery_blocked(struct wil6210_priv *wil)
389 return no_fw_recovery && (wil->recovery_state == fw_recovery_pending);
392 static void wil_fw_error_worker(struct work_struct *work)
394 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
396 struct wireless_dev *wdev = wil->wdev;
397 struct net_device *ndev = wil_to_ndev(wil);
399 wil_dbg_misc(wil, "fw error worker\n");
401 if (!(ndev->flags & IFF_UP)) {
402 wil_info(wil, "No recovery - interface is down\n");
406 /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
407 * passed since last recovery attempt
409 if (time_is_after_jiffies(wil->last_fw_recovery +
410 WIL6210_FW_RECOVERY_TO))
411 wil->recovery_count++;
413 wil->recovery_count = 1; /* fw was alive for a long time */
415 if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) {
416 wil_err(wil, "too many recovery attempts (%d), giving up\n",
417 wil->recovery_count);
421 wil->last_fw_recovery = jiffies;
423 wil_info(wil, "fw error recovery requested (try %d)...\n",
424 wil->recovery_count);
426 wil->recovery_state = fw_recovery_running;
427 if (wil_wait_for_recovery(wil) != 0)
430 mutex_lock(&wil->mutex);
431 switch (wdev->iftype) {
432 case NL80211_IFTYPE_STATION:
433 case NL80211_IFTYPE_P2P_CLIENT:
434 case NL80211_IFTYPE_MONITOR:
435 /* silent recovery, upper layers will see disconnect */
439 case NL80211_IFTYPE_AP:
440 case NL80211_IFTYPE_P2P_GO:
441 wil_info(wil, "No recovery for AP-like interface\n");
442 /* recovery in these modes is done by upper layers */
445 wil_err(wil, "No recovery - unknown interface type %d\n",
449 mutex_unlock(&wil->mutex);
452 static int wil_find_free_vring(struct wil6210_priv *wil)
456 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
457 if (!wil->vring_tx[i].va)
463 int wil_tx_init(struct wil6210_priv *wil, int cid)
465 int rc = -EINVAL, ringid;
468 wil_err(wil, "No connection pending\n");
471 ringid = wil_find_free_vring(wil);
473 wil_err(wil, "No free vring found\n");
477 wil_dbg_wmi(wil, "Configure for connection CID %d vring %d\n",
480 rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0);
482 wil_err(wil, "wil_vring_init_tx for CID %d vring %d failed\n",
489 int wil_bcast_init(struct wil6210_priv *wil)
491 int ri = wil->bcast_vring, rc;
493 if ((ri >= 0) && wil->vring_tx[ri].va)
496 ri = wil_find_free_vring(wil);
500 wil->bcast_vring = ri;
501 rc = wil_vring_init_bcast(wil, ri, 1 << bcast_ring_order);
503 wil->bcast_vring = -1;
508 void wil_bcast_fini(struct wil6210_priv *wil)
510 int ri = wil->bcast_vring;
515 wil->bcast_vring = -1;
516 wil_vring_fini_tx(wil, ri);
519 int wil_priv_init(struct wil6210_priv *wil)
523 wil_dbg_misc(wil, "priv_init\n");
525 memset(wil->sta, 0, sizeof(wil->sta));
526 for (i = 0; i < WIL6210_MAX_CID; i++)
527 spin_lock_init(&wil->sta[i].tid_rx_lock);
529 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++)
530 spin_lock_init(&wil->vring_tx_data[i].lock);
532 mutex_init(&wil->mutex);
533 mutex_init(&wil->wmi_mutex);
534 mutex_init(&wil->probe_client_mutex);
535 mutex_init(&wil->p2p_wdev_mutex);
536 mutex_init(&wil->halp.lock);
538 init_completion(&wil->wmi_ready);
539 init_completion(&wil->wmi_call);
540 init_completion(&wil->halp.comp);
542 wil->bcast_vring = -1;
543 setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil);
544 setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil);
545 setup_timer(&wil->p2p.discovery_timer, wil_p2p_discovery_timer_fn,
548 INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker);
549 INIT_WORK(&wil->wmi_event_worker, wmi_event_worker);
550 INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker);
551 INIT_WORK(&wil->probe_client_worker, wil_probe_client_worker);
552 INIT_WORK(&wil->p2p.delayed_listen_work, wil_p2p_delayed_listen_work);
554 INIT_LIST_HEAD(&wil->pending_wmi_ev);
555 INIT_LIST_HEAD(&wil->probe_client_pending);
556 spin_lock_init(&wil->wmi_ev_lock);
557 spin_lock_init(&wil->net_queue_lock);
558 wil->net_queue_stopped = 1;
559 init_waitqueue_head(&wil->wq);
561 wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi");
565 wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service");
566 if (!wil->wq_service)
569 wil->last_fw_recovery = jiffies;
570 wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT;
571 wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT;
572 wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT;
573 wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT;
575 if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT)
576 rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT;
578 wil->ps_profile = WMI_PS_PROFILE_TYPE_DEFAULT;
580 wil->wakeup_trigger = WMI_WAKEUP_TRIGGER_UCAST |
581 WMI_WAKEUP_TRIGGER_BCAST;
582 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats));
583 wil->suspend_stats.min_suspend_time = ULONG_MAX;
584 wil->vring_idle_trsh = 16;
589 destroy_workqueue(wil->wmi_wq);
594 void wil6210_bus_request(struct wil6210_priv *wil, u32 kbps)
596 if (wil->platform_ops.bus_request) {
597 wil->bus_request_kbps = kbps;
598 wil->platform_ops.bus_request(wil->platform_handle, kbps);
603 * wil6210_disconnect - disconnect one connection
604 * @wil: driver context
605 * @bssid: peer to disconnect, NULL to disconnect all
606 * @reason_code: Reason code for the Disassociation frame
607 * @from_event: whether is invoked from FW event handler
609 * Disconnect and release associated resources. If invoked not from the
610 * FW event handler, issue WMI command(s) to trigger MAC disconnect.
612 void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
613 u16 reason_code, bool from_event)
615 wil_dbg_misc(wil, "disconnect\n");
617 del_timer_sync(&wil->connect_timer);
618 _wil6210_disconnect(wil, bssid, reason_code, from_event);
621 void wil_priv_deinit(struct wil6210_priv *wil)
623 wil_dbg_misc(wil, "priv_deinit\n");
625 wil_set_recovery_state(wil, fw_recovery_idle);
626 del_timer_sync(&wil->scan_timer);
627 del_timer_sync(&wil->p2p.discovery_timer);
628 cancel_work_sync(&wil->disconnect_worker);
629 cancel_work_sync(&wil->fw_error_worker);
630 cancel_work_sync(&wil->p2p.discovery_expired_work);
631 cancel_work_sync(&wil->p2p.delayed_listen_work);
632 mutex_lock(&wil->mutex);
633 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
634 mutex_unlock(&wil->mutex);
635 wmi_event_flush(wil);
636 wil_probe_client_flush(wil);
637 cancel_work_sync(&wil->probe_client_worker);
638 destroy_workqueue(wil->wq_service);
639 destroy_workqueue(wil->wmi_wq);
642 static inline void wil_halt_cpu(struct wil6210_priv *wil)
644 wil_w(wil, RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST);
645 wil_w(wil, RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST);
648 static inline void wil_release_cpu(struct wil6210_priv *wil)
651 wil_w(wil, RGF_USER_USER_CPU_0, 1);
654 static void wil_set_oob_mode(struct wil6210_priv *wil, u8 mode)
656 wil_info(wil, "oob_mode to %d\n", mode);
659 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE |
660 BIT_USER_OOB_R2_MODE);
663 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE);
664 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE);
667 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE);
668 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE);
671 wil_err(wil, "invalid oob_mode: %d\n", mode);
675 static int wil_target_reset(struct wil6210_priv *wil)
680 wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name);
682 /* Clear MAC link up */
683 wil_s(wil, RGF_HP_CTRL, BIT(15));
684 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD);
685 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);
689 /* clear all boot loader "ready" bits */
690 wil_w(wil, RGF_USER_BL +
691 offsetof(struct bl_dedicated_registers_v0, boot_loader_ready), 0);
692 /* Clear Fw Download notification */
693 wil_c(wil, RGF_USER_USAGE_6, BIT(0));
695 wil_s(wil, RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN);
696 /* XTAL stabilization should take about 3ms */
697 usleep_range(5000, 7000);
698 x = wil_r(wil, RGF_CAF_PLL_LOCK_STATUS);
699 if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) {
700 wil_err(wil, "Xtal stabilization timeout\n"
701 "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x);
704 /* switch 10k to XTAL*/
705 wil_c(wil, RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF);
707 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL);
709 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f);
710 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf);
712 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000);
713 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F);
714 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x000000f0);
715 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00);
717 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0);
718 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0);
720 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0);
721 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0);
722 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0);
723 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
725 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003);
726 /* reset A2 PCIE AHB */
727 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000);
729 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
731 /* wait until device ready. typical time is 20..80 msec */
734 x = wil_r(wil, RGF_USER_BL +
735 offsetof(struct bl_dedicated_registers_v0,
738 wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", x1, x);
741 if (delay++ > RST_COUNT) {
742 wil_err(wil, "Reset not completed, bl.ready 0x%08x\n",
746 } while (x != BL_READY);
748 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
750 /* enable fix for HW bug related to the SA/DA swap in AP Rx */
751 wil_s(wil, RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN |
752 BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC);
754 wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY);
758 static void wil_collect_fw_info(struct wil6210_priv *wil)
760 struct wiphy *wiphy = wil_to_wiphy(wil);
764 rc = wmi_get_mgmt_retry(wil, &retry_short);
766 wiphy->retry_short = retry_short;
767 wil_dbg_misc(wil, "FW retry_short: %d\n", retry_short);
771 void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r)
773 le32_to_cpus(&r->base);
774 le16_to_cpus(&r->entry_size);
775 le16_to_cpus(&r->size);
776 le32_to_cpus(&r->tail);
777 le32_to_cpus(&r->head);
780 static int wil_get_bl_info(struct wil6210_priv *wil)
782 struct net_device *ndev = wil_to_ndev(wil);
783 struct wiphy *wiphy = wil_to_wiphy(wil);
785 struct bl_dedicated_registers_v0 bl0;
786 struct bl_dedicated_registers_v1 bl1;
792 wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL),
794 bl_ver = le32_to_cpu(bl.bl0.boot_loader_struct_version);
795 mac = bl.bl0.mac_address;
798 le32_to_cpus(&bl.bl0.rf_type);
799 le32_to_cpus(&bl.bl0.baseband_type);
800 rf_status = 0; /* actually, unknown */
802 "Boot Loader struct v%d: MAC = %pM RF = 0x%08x bband = 0x%08x\n",
804 bl.bl0.rf_type, bl.bl0.baseband_type);
805 wil_info(wil, "Boot Loader build unknown for struct v0\n");
807 le16_to_cpus(&bl.bl1.rf_type);
808 rf_status = le16_to_cpu(bl.bl1.rf_status);
809 le32_to_cpus(&bl.bl1.baseband_type);
810 le16_to_cpus(&bl.bl1.bl_version_subminor);
811 le16_to_cpus(&bl.bl1.bl_version_build);
813 "Boot Loader struct v%d: MAC = %pM RF = 0x%04x (status 0x%04x) bband = 0x%08x\n",
815 bl.bl1.rf_type, rf_status,
816 bl.bl1.baseband_type);
817 wil_info(wil, "Boot Loader build %d.%d.%d.%d\n",
818 bl.bl1.bl_version_major, bl.bl1.bl_version_minor,
819 bl.bl1.bl_version_subminor, bl.bl1.bl_version_build);
822 if (!is_valid_ether_addr(mac)) {
823 wil_err(wil, "BL: Invalid MAC %pM\n", mac);
827 ether_addr_copy(ndev->perm_addr, mac);
828 ether_addr_copy(wiphy->perm_addr, mac);
829 if (!is_valid_ether_addr(ndev->dev_addr))
830 ether_addr_copy(ndev->dev_addr, mac);
832 if (rf_status) {/* bad RF cable? */
833 wil_err(wil, "RF communication error 0x%04x",
841 static void wil_bl_crash_info(struct wil6210_priv *wil, bool is_err)
843 u32 bl_assert_code, bl_assert_blink, bl_magic_number;
844 u32 bl_ver = wil_r(wil, RGF_USER_BL +
845 offsetof(struct bl_dedicated_registers_v0,
846 boot_loader_struct_version));
851 bl_assert_code = wil_r(wil, RGF_USER_BL +
852 offsetof(struct bl_dedicated_registers_v1,
854 bl_assert_blink = wil_r(wil, RGF_USER_BL +
855 offsetof(struct bl_dedicated_registers_v1,
857 bl_magic_number = wil_r(wil, RGF_USER_BL +
858 offsetof(struct bl_dedicated_registers_v1,
863 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n",
864 bl_assert_code, bl_assert_blink, bl_magic_number);
867 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n",
868 bl_assert_code, bl_assert_blink, bl_magic_number);
872 static int wil_wait_for_fw_ready(struct wil6210_priv *wil)
874 ulong to = msecs_to_jiffies(2000);
875 ulong left = wait_for_completion_timeout(&wil->wmi_ready, to);
878 wil_err(wil, "Firmware not ready\n");
881 wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n",
882 jiffies_to_msecs(to-left), wil->hw_version);
887 void wil_abort_scan(struct wil6210_priv *wil, bool sync)
890 struct cfg80211_scan_info info = {
894 lockdep_assert_held(&wil->p2p_wdev_mutex);
896 if (!wil->scan_request)
899 wil_dbg_misc(wil, "Abort scan_request 0x%p\n", wil->scan_request);
900 del_timer_sync(&wil->scan_timer);
901 mutex_unlock(&wil->p2p_wdev_mutex);
902 rc = wmi_abort_scan(wil);
904 wait_event_interruptible_timeout(wil->wq, !wil->scan_request,
906 WAIT_FOR_SCAN_ABORT_MS));
908 mutex_lock(&wil->p2p_wdev_mutex);
909 if (wil->scan_request) {
910 cfg80211_scan_done(wil->scan_request, &info);
911 wil->scan_request = NULL;
915 int wil_ps_update(struct wil6210_priv *wil, enum wmi_ps_profile_type ps_profile)
919 if (!test_bit(WMI_FW_CAPABILITY_PS_CONFIG, wil->fw_capabilities)) {
920 wil_err(wil, "set_power_mgmt not supported\n");
924 rc = wmi_ps_dev_profile_cfg(wil, ps_profile);
926 wil_err(wil, "wmi_ps_dev_profile_cfg failed (%d)\n", rc);
928 wil->ps_profile = ps_profile;
933 static void wil_pre_fw_config(struct wil6210_priv *wil)
935 /* Mark FW as loaded from host */
936 wil_s(wil, RGF_USER_USAGE_6, 1);
938 /* clear any interrupts which on-card-firmware
941 wil6210_clear_irq(wil);
942 /* CAF_ICR - clear and mask */
943 /* it is W1C, clear by writing back same value */
944 wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0);
945 wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0);
946 /* clear PAL_UNIT_ICR (potential D0->D3 leftover) */
947 wil_s(wil, RGF_PAL_UNIT_ICR + offsetof(struct RGF_ICR, ICR), 0);
949 if (wil->fw_calib_result > 0) {
950 __le32 val = cpu_to_le32(wil->fw_calib_result |
951 (CALIB_RESULT_SIGNATURE << 8));
952 wil_w(wil, RGF_USER_FW_CALIB_RESULT, (u32 __force)val);
957 * We reset all the structures, and we reset the UMAC.
958 * After calling this routine, you're expected to reload
961 int wil_reset(struct wil6210_priv *wil, bool load_fw)
965 wil_dbg_misc(wil, "reset\n");
967 WARN_ON(!mutex_is_locked(&wil->mutex));
968 WARN_ON(test_bit(wil_status_napi_en, wil->status));
971 static const u8 mac[ETH_ALEN] = {
972 0x00, 0xde, 0xad, 0x12, 0x34, 0x56,
974 struct net_device *ndev = wil_to_ndev(wil);
976 ether_addr_copy(ndev->perm_addr, mac);
977 ether_addr_copy(ndev->dev_addr, ndev->perm_addr);
981 if (wil->hw_version == HW_VER_UNKNOWN)
984 if (wil->platform_ops.notify) {
985 rc = wil->platform_ops.notify(wil->platform_handle,
986 WIL_PLATFORM_EVT_PRE_RESET);
988 wil_err(wil, "PRE_RESET platform notify failed, rc %d\n",
992 set_bit(wil_status_resetting, wil->status);
994 cancel_work_sync(&wil->disconnect_worker);
995 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
998 /* Disable device led before reset*/
999 wmi_led_cfg(wil, false);
1001 mutex_lock(&wil->p2p_wdev_mutex);
1002 wil_abort_scan(wil, false);
1003 mutex_unlock(&wil->p2p_wdev_mutex);
1005 /* prevent NAPI from being scheduled and prevent wmi commands */
1006 mutex_lock(&wil->wmi_mutex);
1007 bitmap_zero(wil->status, wil_status_last);
1008 mutex_unlock(&wil->wmi_mutex);
1012 wmi_event_flush(wil);
1014 flush_workqueue(wil->wq_service);
1015 flush_workqueue(wil->wmi_wq);
1017 wil_bl_crash_info(wil, false);
1018 wil_disable_irq(wil);
1019 rc = wil_target_reset(wil);
1020 wil6210_clear_irq(wil);
1021 wil_enable_irq(wil);
1024 wil_bl_crash_info(wil, true);
1028 rc = wil_get_bl_info(wil);
1029 if (rc == -EAGAIN && !load_fw) /* ignore RF error if not going up */
1034 wil_set_oob_mode(wil, oob_mode);
1036 wil_info(wil, "Use firmware <%s> + board <%s>\n",
1037 wil->wil_fw_name, WIL_BOARD_FILE_NAME);
1040 memset(wil->fw_version, 0, sizeof(wil->fw_version));
1041 /* Loading f/w from the file */
1042 rc = wil_request_firmware(wil, wil->wil_fw_name, true);
1045 rc = wil_request_firmware(wil, WIL_BOARD_FILE_NAME, true);
1049 wil_pre_fw_config(wil);
1050 wil_release_cpu(wil);
1053 /* init after reset */
1054 wil->ap_isolate = 0;
1055 reinit_completion(&wil->wmi_ready);
1056 reinit_completion(&wil->wmi_call);
1057 reinit_completion(&wil->halp.comp);
1060 wil_configure_interrupt_moderation(wil);
1061 wil_unmask_irq(wil);
1063 /* we just started MAC, wait for FW ready */
1064 rc = wil_wait_for_fw_ready(wil);
1068 /* check FW is responsive */
1071 wil_err(wil, "wmi_echo failed, rc %d\n", rc);
1075 if (wil->ps_profile != WMI_PS_PROFILE_TYPE_DEFAULT)
1076 wil_ps_update(wil, wil->ps_profile);
1078 wil_collect_fw_info(wil);
1080 if (wil->platform_ops.notify) {
1081 rc = wil->platform_ops.notify(wil->platform_handle,
1082 WIL_PLATFORM_EVT_FW_RDY);
1084 wil_err(wil, "FW_RDY notify failed, rc %d\n",
1094 void wil_fw_error_recovery(struct wil6210_priv *wil)
1096 wil_dbg_misc(wil, "starting fw error recovery\n");
1098 if (test_bit(wil_status_resetting, wil->status)) {
1099 wil_info(wil, "Reset already in progress\n");
1103 wil->recovery_state = fw_recovery_pending;
1104 schedule_work(&wil->fw_error_worker);
1107 int __wil_up(struct wil6210_priv *wil)
1109 struct net_device *ndev = wil_to_ndev(wil);
1110 struct wireless_dev *wdev = wil->wdev;
1113 WARN_ON(!mutex_is_locked(&wil->mutex));
1115 rc = wil_reset(wil, true);
1119 /* Rx VRING. After MAC and beacon */
1120 rc = wil_rx_init(wil, 1 << rx_ring_order);
1124 switch (wdev->iftype) {
1125 case NL80211_IFTYPE_STATION:
1126 wil_dbg_misc(wil, "type: STATION\n");
1127 ndev->type = ARPHRD_ETHER;
1129 case NL80211_IFTYPE_AP:
1130 wil_dbg_misc(wil, "type: AP\n");
1131 ndev->type = ARPHRD_ETHER;
1133 case NL80211_IFTYPE_P2P_CLIENT:
1134 wil_dbg_misc(wil, "type: P2P_CLIENT\n");
1135 ndev->type = ARPHRD_ETHER;
1137 case NL80211_IFTYPE_P2P_GO:
1138 wil_dbg_misc(wil, "type: P2P_GO\n");
1139 ndev->type = ARPHRD_ETHER;
1141 case NL80211_IFTYPE_MONITOR:
1142 wil_dbg_misc(wil, "type: Monitor\n");
1143 ndev->type = ARPHRD_IEEE80211_RADIOTAP;
1144 /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
1150 /* MAC address - pre-requisite for other commands */
1151 wmi_set_mac_address(wil, ndev->dev_addr);
1153 wil_dbg_misc(wil, "NAPI enable\n");
1154 napi_enable(&wil->napi_rx);
1155 napi_enable(&wil->napi_tx);
1156 set_bit(wil_status_napi_en, wil->status);
1158 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS);
1163 int wil_up(struct wil6210_priv *wil)
1167 wil_dbg_misc(wil, "up\n");
1169 mutex_lock(&wil->mutex);
1171 mutex_unlock(&wil->mutex);
1176 int __wil_down(struct wil6210_priv *wil)
1178 WARN_ON(!mutex_is_locked(&wil->mutex));
1180 set_bit(wil_status_resetting, wil->status);
1182 wil6210_bus_request(wil, 0);
1184 wil_disable_irq(wil);
1185 if (test_and_clear_bit(wil_status_napi_en, wil->status)) {
1186 napi_disable(&wil->napi_rx);
1187 napi_disable(&wil->napi_tx);
1188 wil_dbg_misc(wil, "NAPI disable\n");
1190 wil_enable_irq(wil);
1192 mutex_lock(&wil->p2p_wdev_mutex);
1193 wil_p2p_stop_radio_operations(wil);
1194 wil_abort_scan(wil, false);
1195 mutex_unlock(&wil->p2p_wdev_mutex);
1197 wil_reset(wil, false);
1202 int wil_down(struct wil6210_priv *wil)
1206 wil_dbg_misc(wil, "down\n");
1208 wil_set_recovery_state(wil, fw_recovery_idle);
1209 mutex_lock(&wil->mutex);
1210 rc = __wil_down(wil);
1211 mutex_unlock(&wil->mutex);
1216 int wil_find_cid(struct wil6210_priv *wil, const u8 *mac)
1221 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1222 if ((wil->sta[i].status != wil_sta_unused) &&
1223 ether_addr_equal(wil->sta[i].addr, mac)) {
1232 void wil_halp_vote(struct wil6210_priv *wil)
1235 unsigned long to_jiffies = msecs_to_jiffies(WAIT_FOR_HALP_VOTE_MS);
1237 mutex_lock(&wil->halp.lock);
1239 wil_dbg_irq(wil, "halp_vote: start, HALP ref_cnt (%d)\n",
1242 if (++wil->halp.ref_cnt == 1) {
1243 reinit_completion(&wil->halp.comp);
1244 wil6210_set_halp(wil);
1245 rc = wait_for_completion_timeout(&wil->halp.comp, to_jiffies);
1247 wil_err(wil, "HALP vote timed out\n");
1248 /* Mask HALP as done in case the interrupt is raised */
1249 wil6210_mask_halp(wil);
1252 "halp_vote: HALP vote completed after %d ms\n",
1253 jiffies_to_msecs(to_jiffies - rc));
1257 wil_dbg_irq(wil, "halp_vote: end, HALP ref_cnt (%d)\n",
1260 mutex_unlock(&wil->halp.lock);
1263 void wil_halp_unvote(struct wil6210_priv *wil)
1265 WARN_ON(wil->halp.ref_cnt == 0);
1267 mutex_lock(&wil->halp.lock);
1269 wil_dbg_irq(wil, "halp_unvote: start, HALP ref_cnt (%d)\n",
1272 if (--wil->halp.ref_cnt == 0) {
1273 wil6210_clear_halp(wil);
1274 wil_dbg_irq(wil, "HALP unvote\n");
1277 wil_dbg_irq(wil, "halp_unvote:end, HALP ref_cnt (%d)\n",
1280 mutex_unlock(&wil->halp.lock);