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nl80211: support beacon report scanning
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / ath / wil6210 / main.c
CommitLineData
2be7d22f 1/*
0916d9f2 2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
2be7d22f
VK		 3 *
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.
7 *
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.
15 */
16
2be7d22f
VK		 17#include <linux/moduleparam.h>
18#include <linux/if_arp.h>
108d1eb6 19#include <linux/etherdevice.h>
2be7d22f
VK		 20
21#include "wil6210.h"
b4490f42 22#include "txrx.h"
f172b563 23#include "wmi.h"
f1ad8c93 24#include "boot_loader.h"
f172b563 25
349214c1
ME		 26#define WAIT_FOR_HALP_VOTE_MS 100
27
bfc2dc7a
VK		 28bool debug_fw; /* = false; */
29module_param(debug_fw, bool, S_IRUGO);
30MODULE_PARM_DESC(debug_fw, " do not perform card reset. For FW debug");
31
1f1a361a
LD		 32static bool oob_mode;
33module_param(oob_mode, bool, S_IRUGO);
34MODULE_PARM_DESC(oob_mode,
35 " enable out of the box (OOB) mode in FW, for diagnostics and certification");
36
c33407a8 37bool no_fw_recovery;
ed6f9dc6 38module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR);
c33407a8 39MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery");
ed6f9dc6 40
ab954628
VK		 41/* if not set via modparam, will be set to default value of 1/8 of
42 * rx ring size during init flow
43 */
44unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT;
45module_param(rx_ring_overflow_thrsh, ushort, S_IRUGO);
46MODULE_PARM_DESC(rx_ring_overflow_thrsh,
47 " RX ring overflow threshold in descriptors.");
b6b1b0ec 48
9a06bec9
VK		 49/* We allow allocation of more than 1 page buffers to support large packets.
50 * It is suboptimal behavior performance wise in case MTU above page size.
51 */
c44690a1 52unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD;
9a06bec9
VK		 53static int mtu_max_set(const char *val, const struct kernel_param *kp)
54{
55 int ret;
56
57 /* sets mtu_max directly. no need to restore it in case of
58 * illegal value since we assume this will fail insmod
59 */
60 ret = param_set_uint(val, kp);
61 if (ret)
62 return ret;
63
4590d812 64 if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU)
9a06bec9
VK		 65 ret = -EINVAL;
66
67 return ret;
68}
69
9c27847d 70static const struct kernel_param_ops mtu_max_ops = {
9a06bec9
VK		 71 .set = mtu_max_set,
72 .get = param_get_uint,
73};
74
75module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO);
76MODULE_PARM_DESC(mtu_max, " Max MTU value.");
77
d3762b40
VK		 78static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT;
79static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT;
41d6b093 80static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT;
d3762b40
VK		 81
82static int ring_order_set(const char *val, const struct kernel_param *kp)
83{
84 int ret;
85 uint x;
86
87 ret = kstrtouint(val, 0, &x);
88 if (ret)
89 return ret;
90
91 if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX))
92 return -EINVAL;
93
94 *((uint *)kp->arg) = x;
95
96 return 0;
97}
98
9c27847d 99static const struct kernel_param_ops ring_order_ops = {
d3762b40
VK		 100 .set = ring_order_set,
101 .get = param_get_uint,
102};
103
104module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, S_IRUGO);
105MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order");
106module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, S_IRUGO);
107MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order");
d507d1b7
VK		 108module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, S_IRUGO);
109MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order");
d3762b40 110
520d68e7
VK		 111#define RST_DELAY (20) /* msec, for loop in @wil_target_reset */
112#define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */
113
2be7d22f
VK		 114/*
115 * Due to a hardware issue,
116 * one has to read/write to/from NIC in 32-bit chunks;
117 * regular memcpy_fromio and siblings will
118 * not work on 64-bit platform - it uses 64-bit transactions
119 *
120 * Force 32-bit transactions to enable NIC on 64-bit platforms
121 *
122 * To avoid byte swap on big endian host, __raw_{read|write}l
123 * should be used - {read|write}l would swap bytes to provide
124 * little endian on PCI value in host endianness.
125 */
126void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src,
127 size_t count)
128{
129 u32 *d = dst;
130 const volatile u32 __iomem *s = src;
131
132 /* size_t is unsigned, if (count%4 != 0) it will wrap */
133 for (count += 4; count > 4; count -= 4)
134 *d++ = __raw_readl(s++);
135}
136
349214c1
ME		 137void wil_memcpy_fromio_halp_vote(struct wil6210_priv *wil, void *dst,
138 const volatile void __iomem *src, size_t count)
139{
140 wil_halp_vote(wil);
141 wil_memcpy_fromio_32(dst, src, count);
142 wil_halp_unvote(wil);
143}
144
2be7d22f
VK		 145void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src,
146 size_t count)
147{
148 volatile u32 __iomem *d = dst;
149 const u32 *s = src;
150
151 for (count += 4; count > 4; count -= 4)
152 __raw_writel(*s++, d++);
153}
154
349214c1
ME		 155void wil_memcpy_toio_halp_vote(struct wil6210_priv *wil,
156 volatile void __iomem *dst,
157 const void *src, size_t count)
158{
159 wil_halp_vote(wil);
160 wil_memcpy_toio_32(dst, src, count);
161 wil_halp_unvote(wil);
162}
163
b516fcc5 164static void wil_disconnect_cid(struct wil6210_priv *wil, int cid,
4821e6d8 165 u16 reason_code, bool from_event)
bd33273b 166__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
91886b0b
VK		 167{
168 uint i;
fc58f681
VK		 169 struct net_device *ndev = wil_to_ndev(wil);
170 struct wireless_dev *wdev = wil->wdev;
91886b0b 171 struct wil_sta_info *sta = &wil->sta[cid];
8fe59627 172
bd33273b 173 might_sleep();
fc58f681
VK		 174 wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid,
175 sta->status);
58527421 176 /* inform upper/lower layers */
4d55a0a1 177 if (sta->status != wil_sta_unused) {
b516fcc5 178 if (!from_event)
0916d9f2 179 wmi_disconnect_sta(wil, sta->addr, reason_code, true);
b516fcc5 180
fc58f681
VK		 181 switch (wdev->iftype) {
182 case NL80211_IFTYPE_AP:
183 case NL80211_IFTYPE_P2P_GO:
184 /* AP-like interface */
185 cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL);
186 break;
187 default:
188 break;
189 }
4d55a0a1
VK		 190 sta->status = wil_sta_unused;
191 }
58527421 192 /* reorder buffers */
91886b0b 193 for (i = 0; i < WIL_STA_TID_NUM; i++) {
ec81b5ad 194 struct wil_tid_ampdu_rx *r;
ec81b5ad 195
bd33273b 196 spin_lock_bh(&sta->tid_rx_lock);
ec81b5ad
DL		 197
198 r = sta->tid_rx[i];
91886b0b
VK		 199 sta->tid_rx[i] = NULL;
200 wil_tid_ampdu_rx_free(wil, r);
ec81b5ad 201
bd33273b 202 spin_unlock_bh(&sta->tid_rx_lock);
91886b0b 203 }
58527421
VK		 204 /* crypto context */
205 memset(sta->tid_crypto_rx, 0, sizeof(sta->tid_crypto_rx));
206 memset(&sta->group_crypto_rx, 0, sizeof(sta->group_crypto_rx));
207 /* release vrings */
91886b0b
VK		 208 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
209 if (wil->vring2cid_tid[i][0] == cid)
210 wil_vring_fini_tx(wil, i);
211 }
58527421 212 /* statistics */
91886b0b
VK		 213 memset(&sta->stats, 0, sizeof(sta->stats));
214}
215
54eaa8c6
ME		 216static bool wil_ap_is_connected(struct wil6210_priv *wil)
217{
218 int i;
219
220 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
221 if (wil->sta[i].status == wil_sta_connected)
222 return true;
223 }
224
225 return false;
226}
227
b516fcc5 228static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
4821e6d8 229 u16 reason_code, bool from_event)
2be7d22f 230{
91886b0b 231 int cid = -ENOENT;
2be7d22f 232 struct net_device *ndev = wil_to_ndev(wil);
91886b0b
VK		 233 struct wireless_dev *wdev = wil->wdev;
234
235 might_sleep();
0916d9f2
ME		 236 wil_info(wil, "%s(bssid=%pM, reason=%d, ev%s)\n", __func__, bssid,
237 reason_code, from_event ? "+" : "-");
100106d7
VK		 238
239 /* Cases are:
240 * - disconnect single STA, still connected
241 * - disconnect single STA, already disconnected
242 * - disconnect all
243 *
68682b41 244 * For "disconnect all", there are 3 options:
100106d7 245 * - bssid == NULL
68682b41 246 * - bssid is broadcast address (ff:ff:ff:ff:ff:ff)
100106d7
VK		 247 * - bssid is our MAC address
248 */
68682b41
VK		 249 if (bssid && !is_broadcast_ether_addr(bssid) &&
250 !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) {
91886b0b 251 cid = wil_find_cid(wil, bssid);
100106d7
VK		 252 wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n",
253 bssid, cid, reason_code);
254 if (cid >= 0) /* disconnect 1 peer */
255 wil_disconnect_cid(wil, cid, reason_code, from_event);
256 } else { /* all */
257 wil_dbg_misc(wil, "Disconnect all\n");
91886b0b 258 for (cid = 0; cid < WIL6210_MAX_CID; cid++)
4821e6d8 259 wil_disconnect_cid(wil, cid, reason_code, from_event);
100106d7 260 }
91886b0b
VK		 261
262 /* link state */
263 switch (wdev->iftype) {
264 case NL80211_IFTYPE_STATION:
265 case NL80211_IFTYPE_P2P_CLIENT:
41d6b093 266 wil_bcast_fini(wil);
c5e96c91
DL		 267 netif_tx_stop_all_queues(ndev);
268 netif_carrier_off(ndev);
269
9419b6a2
VK		 270 if (test_bit(wil_status_fwconnected, wil->status)) {
271 clear_bit(wil_status_fwconnected, wil->status);
4821e6d8 272 cfg80211_disconnected(ndev, reason_code,
80279fb7 273 NULL, 0, false, GFP_KERNEL);
9419b6a2 274 } else if (test_bit(wil_status_fwconnecting, wil->status)) {
91886b0b
VK		 275 cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
276 WLAN_STATUS_UNSPECIFIED_FAILURE,
277 GFP_KERNEL);
278 }
9419b6a2 279 clear_bit(wil_status_fwconnecting, wil->status);
91886b0b 280 break;
54eaa8c6
ME		 281 case NL80211_IFTYPE_AP:
282 case NL80211_IFTYPE_P2P_GO:
283 if (!wil_ap_is_connected(wil))
284 clear_bit(wil_status_fwconnected, wil->status);
285 break;
91886b0b 286 default:
91886b0b 287 break;
2be7d22f 288 }
2be7d22f
VK		 289}
290
291static void wil_disconnect_worker(struct work_struct *work)
292{
293 struct wil6210_priv *wil = container_of(work,
294 struct wil6210_priv, disconnect_worker);
295
097638a0 296 mutex_lock(&wil->mutex);
4821e6d8 297 _wil6210_disconnect(wil, NULL, WLAN_REASON_UNSPECIFIED, false);
097638a0 298 mutex_unlock(&wil->mutex);
2be7d22f
VK		 299}
300
301static void wil_connect_timer_fn(ulong x)
302{
303 struct wil6210_priv *wil = (void *)x;
0916d9f2 304 bool q;
2be7d22f 305
0916d9f2 306 wil_err(wil, "Connect timeout detected, disconnect station\n");
2be7d22f
VK		 307
308 /* reschedule to thread context - disconnect won't
0916d9f2
ME		 309 * run from atomic context.
310 * queue on wmi_wq to prevent race with connect event.
2be7d22f 311 */
0916d9f2
ME		 312 q = queue_work(wil->wmi_wq, &wil->disconnect_worker);
313 wil_dbg_wmi(wil, "queue_work of disconnect_worker -> %d\n", q);
2be7d22f
VK		 314}
315
047e5d74
VK		 316static void wil_scan_timer_fn(ulong x)
317{
318 struct wil6210_priv *wil = (void *)x;
319
9419b6a2 320 clear_bit(wil_status_fwready, wil->status);
047e5d74 321 wil_err(wil, "Scan timeout detected, start fw error recovery\n");
8ad6600f 322 wil_fw_error_recovery(wil);
047e5d74
VK		 323}
324
c33407a8
VK		 325static int wil_wait_for_recovery(struct wil6210_priv *wil)
326{
327 if (wait_event_interruptible(wil->wq, wil->recovery_state !=
328 fw_recovery_pending)) {
329 wil_err(wil, "Interrupt, canceling recovery\n");
330 return -ERESTARTSYS;
331 }
332 if (wil->recovery_state != fw_recovery_running) {
333 wil_info(wil, "Recovery cancelled\n");
334 return -EINTR;
335 }
336 wil_info(wil, "Proceed with recovery\n");
337 return 0;
338}
339
340void wil_set_recovery_state(struct wil6210_priv *wil, int state)
341{
342 wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__,
343 wil->recovery_state, state);
344
345 wil->recovery_state = state;
346 wake_up_interruptible(&wil->wq);
347}
348
375a173f
LD		 349bool wil_is_recovery_blocked(struct wil6210_priv *wil)
350{
351 return no_fw_recovery && (wil->recovery_state == fw_recovery_pending);
352}
353
ed6f9dc6
VK		 354static void wil_fw_error_worker(struct work_struct *work)
355{
c33407a8
VK		 356 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
357 fw_error_worker);
ed6f9dc6
VK		 358 struct wireless_dev *wdev = wil->wdev;
359
360 wil_dbg_misc(wil, "fw error worker\n");
361
cded9369
VK		 362 if (!netif_running(wil_to_ndev(wil))) {
363 wil_info(wil, "No recovery - interface is down\n");
364 return;
365 }
366
fc219eed
VK		 367 /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
368 * passed since last recovery attempt
369 */
370 if (time_is_after_jiffies(wil->last_fw_recovery +
371 WIL6210_FW_RECOVERY_TO))
372 wil->recovery_count++;
373 else
374 wil->recovery_count = 1; /* fw was alive for a long time */
375
376 if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) {
377 wil_err(wil, "too many recovery attempts (%d), giving up\n",
378 wil->recovery_count);
379 return;
380 }
381
382 wil->last_fw_recovery = jiffies;
383
9c3bde56 384 mutex_lock(&wil->mutex);
ed6f9dc6
VK		 385 switch (wdev->iftype) {
386 case NL80211_IFTYPE_STATION:
387 case NL80211_IFTYPE_P2P_CLIENT:
388 case NL80211_IFTYPE_MONITOR:
c33407a8 389 wil_info(wil, "fw error recovery requested (try %d)...\n",
fc219eed 390 wil->recovery_count);
c33407a8
VK		 391 if (!no_fw_recovery)
392 wil->recovery_state = fw_recovery_running;
393 if (0 != wil_wait_for_recovery(wil))
394 break;
395
73d839ae
VK		 396 __wil_down(wil);
397 __wil_up(wil);
ed6f9dc6
VK		 398 break;
399 case NL80211_IFTYPE_AP:
400 case NL80211_IFTYPE_P2P_GO:
e240537b 401 wil_info(wil, "No recovery for AP-like interface\n");
ed6f9dc6
VK		 402 /* recovery in these modes is done by upper layers */
403 break;
404 default:
e240537b
VK		 405 wil_err(wil, "No recovery - unknown interface type %d\n",
406 wdev->iftype);
ed6f9dc6
VK		 407 break;
408 }
9c3bde56 409 mutex_unlock(&wil->mutex);
ed6f9dc6
VK		 410}
411
9a177384
VK		 412static int wil_find_free_vring(struct wil6210_priv *wil)
413{
414 int i;
8fe59627 415
9a177384
VK		 416 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
417 if (!wil->vring_tx[i].va)
418 return i;
419 }
420 return -EINVAL;
421}
422
0916d9f2
ME		 423int wil_tx_init(struct wil6210_priv *wil, int cid)
424{
425 int rc = -EINVAL, ringid;
426
427 if (cid < 0) {
428 wil_err(wil, "No connection pending\n");
429 goto out;
430 }
431 ringid = wil_find_free_vring(wil);
432 if (ringid < 0) {
433 wil_err(wil, "No free vring found\n");
434 goto out;
435 }
436
437 wil_dbg_wmi(wil, "Configure for connection CID %d vring %d\n",
438 cid, ringid);
439
440 rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0);
441 if (rc)
442 wil_err(wil, "wil_vring_init_tx for CID %d vring %d failed\n",
443 cid, ringid);
444
445out:
446 return rc;
447}
448
41d6b093
VK		 449int wil_bcast_init(struct wil6210_priv *wil)
450{
451 int ri = wil->bcast_vring, rc;
452
453 if ((ri >= 0) && wil->vring_tx[ri].va)
454 return 0;
455
456 ri = wil_find_free_vring(wil);
457 if (ri < 0)
458 return ri;
459
230d8442 460 wil->bcast_vring = ri;
41d6b093 461 rc = wil_vring_init_bcast(wil, ri, 1 << bcast_ring_order);
230d8442
VK		 462 if (rc)
463 wil->bcast_vring = -1;
41d6b093
VK		 464
465 return rc;
466}
467
468void wil_bcast_fini(struct wil6210_priv *wil)
469{
470 int ri = wil->bcast_vring;
471
472 if (ri < 0)
473 return;
474
475 wil->bcast_vring = -1;
476 wil_vring_fini_tx(wil, ri);
477}
478
2be7d22f
VK		 479int wil_priv_init(struct wil6210_priv *wil)
480{
ec81b5ad
DL		 481 uint i;
482
7743882d 483 wil_dbg_misc(wil, "%s()\n", __func__);
2be7d22f 484
3df2cd36 485 memset(wil->sta, 0, sizeof(wil->sta));
ec81b5ad
DL		 486 for (i = 0; i < WIL6210_MAX_CID; i++)
487 spin_lock_init(&wil->sta[i].tid_rx_lock);
3df2cd36 488
875e9439
ME		 489 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++)
490 spin_lock_init(&wil->vring_tx_data[i].lock);
491
2be7d22f
VK		 492 mutex_init(&wil->mutex);
493 mutex_init(&wil->wmi_mutex);
40822a90 494 mutex_init(&wil->probe_client_mutex);
4332cac1 495 mutex_init(&wil->p2p_wdev_mutex);
349214c1 496 mutex_init(&wil->halp.lock);
2be7d22f
VK		 497
498 init_completion(&wil->wmi_ready);
59502647 499 init_completion(&wil->wmi_call);
349214c1 500 init_completion(&wil->halp.comp);
2be7d22f 501
41d6b093 502 wil->bcast_vring = -1;
2be7d22f 503 setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil);
047e5d74 504 setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil);
e6d68341
DL		 505 setup_timer(&wil->p2p.discovery_timer, wil_p2p_discovery_timer_fn,
506 (ulong)wil);
2be7d22f 507
2be7d22f
VK		 508 INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker);
509 INIT_WORK(&wil->wmi_event_worker, wmi_event_worker);
ed6f9dc6 510 INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker);
40822a90 511 INIT_WORK(&wil->probe_client_worker, wil_probe_client_worker);
2be7d22f
VK		 512
513 INIT_LIST_HEAD(&wil->pending_wmi_ev);
40822a90 514 INIT_LIST_HEAD(&wil->probe_client_pending);
2be7d22f 515 spin_lock_init(&wil->wmi_ev_lock);
c33407a8 516 init_waitqueue_head(&wil->wq);
2be7d22f 517
3277213f 518 wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi");
2be7d22f
VK		 519 if (!wil->wmi_wq)
520 return -EAGAIN;
521
3277213f
VK		 522 wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service");
523 if (!wil->wq_service)
524 goto out_wmi_wq;
2be7d22f 525
fc219eed 526 wil->last_fw_recovery = jiffies;
1f80af2e
VS		 527 wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT;
528 wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT;
529 wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT;
530 wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT;
fc219eed 531
ab954628
VK		 532 if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT)
533 rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT;
2be7d22f 534 return 0;
3277213f
VK		 535
536out_wmi_wq:
537 destroy_workqueue(wil->wmi_wq);
538
539 return -EAGAIN;
2be7d22f
VK		 540}
541
b516fcc5
VK		 542/**
543 * wil6210_disconnect - disconnect one connection
544 * @wil: driver context
545 * @bssid: peer to disconnect, NULL to disconnect all
4821e6d8 546 * @reason_code: Reason code for the Disassociation frame
b516fcc5
VK		 547 * @from_event: whether is invoked from FW event handler
548 *
549 * Disconnect and release associated resources. If invoked not from the
550 * FW event handler, issue WMI command(s) to trigger MAC disconnect.
551 */
552void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
4821e6d8 553 u16 reason_code, bool from_event)
2be7d22f 554{
9cf10d62
VK		 555 wil_dbg_misc(wil, "%s()\n", __func__);
556
2be7d22f 557 del_timer_sync(&wil->connect_timer);
4821e6d8 558 _wil6210_disconnect(wil, bssid, reason_code, from_event);
2be7d22f
VK		 559}
560
561void wil_priv_deinit(struct wil6210_priv *wil)
562{
9cf10d62
VK		 563 wil_dbg_misc(wil, "%s()\n", __func__);
564
c33407a8 565 wil_set_recovery_state(wil, fw_recovery_idle);
047e5d74 566 del_timer_sync(&wil->scan_timer);
e6d68341 567 del_timer_sync(&wil->p2p.discovery_timer);
2be7d22f 568 cancel_work_sync(&wil->disconnect_worker);
ed6f9dc6 569 cancel_work_sync(&wil->fw_error_worker);
e6d68341 570 cancel_work_sync(&wil->p2p.discovery_expired_work);
097638a0 571 mutex_lock(&wil->mutex);
4821e6d8 572 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
097638a0 573 mutex_unlock(&wil->mutex);
2be7d22f 574 wmi_event_flush(wil);
40822a90
VK		 575 wil_probe_client_flush(wil);
576 cancel_work_sync(&wil->probe_client_worker);
3277213f 577 destroy_workqueue(wil->wq_service);
2be7d22f
VK		 578 destroy_workqueue(wil->wmi_wq);
579}
580
151a9706
VK		 581static inline void wil_halt_cpu(struct wil6210_priv *wil)
582{
b9eeb512
VK		 583 wil_w(wil, RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST);
584 wil_w(wil, RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST);
151a9706
VK		 585}
586
587static inline void wil_release_cpu(struct wil6210_priv *wil)
588{
589 /* Start CPU */
b9eeb512 590 wil_w(wil, RGF_USER_USER_CPU_0, 1);
151a9706
VK		 591}
592
1f1a361a
LD		 593static void wil_set_oob_mode(struct wil6210_priv *wil, bool enable)
594{
595 wil_info(wil, "%s: enable=%d\n", __func__, enable);
349214c1 596 if (enable)
1f1a361a 597 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE);
349214c1 598 else
1f1a361a 599 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE);
1f1a361a
LD		 600}
601
bbb2adc7 602static int wil_target_reset(struct wil6210_priv *wil)
2be7d22f 603{
98a65b59 604 int delay = 0;
bb6c8dcc 605 u32 x, x1 = 0;
36b10a72 606
1aeda13b 607 wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name);
6508281b
VK		 608
609 /* Clear MAC link up */
b9eeb512
VK		 610 wil_s(wil, RGF_HP_CTRL, BIT(15));
611 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD);
612 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);
151a9706
VK		 613
614 wil_halt_cpu(wil);
2be7d22f 615
2cd0f021 616 /* clear all boot loader "ready" bits */
b9eeb512
VK		 617 wil_w(wil, RGF_USER_BL +
618 offsetof(struct bl_dedicated_registers_v0, boot_loader_ready), 0);
cce47711 619 /* Clear Fw Download notification */
b9eeb512 620 wil_c(wil, RGF_USER_USAGE_6, BIT(0));
cce47711 621
b9eeb512 622 wil_s(wil, RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN);
9a5511b5
VK		 623 /* XTAL stabilization should take about 3ms */
624 usleep_range(5000, 7000);
b9eeb512 625 x = wil_r(wil, RGF_CAF_PLL_LOCK_STATUS);
9a5511b5
VK		 626 if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) {
627 wil_err(wil, "Xtal stabilization timeout\n"
628 "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x);
629 return -ETIME;
6508281b 630 }
9a5511b5 631 /* switch 10k to XTAL*/
b9eeb512 632 wil_c(wil, RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF);
9a5511b5 633 /* 40 MHz */
b9eeb512 634 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL);
9a5511b5 635
b9eeb512
VK		 636 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f);
637 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf);
6508281b 638
b9eeb512
VK		 639 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000);
640 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F);
641 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x000000f0);
642 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00);
2be7d22f 643
b9eeb512
VK		 644 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0);
645 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0);
6508281b 646
b9eeb512
VK		 647 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0);
648 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0);
649 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0);
650 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
2be7d22f 651
b9eeb512
VK		 652 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003);
653 /* reset A2 PCIE AHB */
654 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000);
6508281b 655
b9eeb512 656 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0);
2be7d22f 657
2cd0f021 658 /* wait until device ready. typical time is 20..80 msec */
36b10a72 659 do {
520d68e7 660 msleep(RST_DELAY);
b9eeb512
VK		 661 x = wil_r(wil, RGF_USER_BL +
662 offsetof(struct bl_dedicated_registers_v0,
663 boot_loader_ready));
bb6c8dcc
VK		 664 if (x1 != x) {
665 wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", x1, x);
666 x1 = x;
667 }
520d68e7 668 if (delay++ > RST_COUNT) {
2cd0f021 669 wil_err(wil, "Reset not completed, bl.ready 0x%08x\n",
48516298 670 x);
bbb2adc7 671 return -ETIME;
36b10a72 672 }
f1ad8c93 673 } while (x != BL_READY);
36b10a72 674
b9eeb512 675 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
972072aa 676
e3351277 677 /* enable fix for HW bug related to the SA/DA swap in AP Rx */
b9eeb512
VK		 678 wil_s(wil, RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN |
679 BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC);
e3351277 680
520d68e7 681 wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY);
bbb2adc7 682 return 0;
151a9706 683}
2be7d22f 684
2be7d22f
VK		 685void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r)
686{
687 le32_to_cpus(&r->base);
688 le16_to_cpus(&r->entry_size);
689 le16_to_cpus(&r->size);
690 le32_to_cpus(&r->tail);
691 le32_to_cpus(&r->head);
692}
693
2cd0f021
VK		 694static int wil_get_bl_info(struct wil6210_priv *wil)
695{
696 struct net_device *ndev = wil_to_ndev(wil);
b42f1196 697 struct wiphy *wiphy = wil_to_wiphy(wil);
f1ad8c93
VK		 698 union {
699 struct bl_dedicated_registers_v0 bl0;
700 struct bl_dedicated_registers_v1 bl1;
701 } bl;
702 u32 bl_ver;
703 u8 *mac;
704 u16 rf_status;
705
19c871ce
VK		 706 wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL),
707 sizeof(bl));
708 bl_ver = le32_to_cpu(bl.bl0.boot_loader_struct_version);
709 mac = bl.bl0.mac_address;
710
711 if (bl_ver == 0) {
f1ad8c93
VK		 712 le32_to_cpus(&bl.bl0.rf_type);
713 le32_to_cpus(&bl.bl0.baseband_type);
f1ad8c93
VK		 714 rf_status = 0; /* actually, unknown */
715 wil_info(wil,
716 "Boot Loader struct v%d: MAC = %pM RF = 0x%08x bband = 0x%08x\n",
717 bl_ver, mac,
718 bl.bl0.rf_type, bl.bl0.baseband_type);
719 wil_info(wil, "Boot Loader build unknown for struct v0\n");
19c871ce 720 } else {
f1ad8c93
VK		 721 le16_to_cpus(&bl.bl1.rf_type);
722 rf_status = le16_to_cpu(bl.bl1.rf_status);
723 le32_to_cpus(&bl.bl1.baseband_type);
724 le16_to_cpus(&bl.bl1.bl_version_subminor);
725 le16_to_cpus(&bl.bl1.bl_version_build);
f1ad8c93
VK		 726 wil_info(wil,
727 "Boot Loader struct v%d: MAC = %pM RF = 0x%04x (status 0x%04x) bband = 0x%08x\n",
728 bl_ver, mac,
729 bl.bl1.rf_type, rf_status,
730 bl.bl1.baseband_type);
731 wil_info(wil, "Boot Loader build %d.%d.%d.%d\n",
732 bl.bl1.bl_version_major, bl.bl1.bl_version_minor,
733 bl.bl1.bl_version_subminor, bl.bl1.bl_version_build);
f1ad8c93 734 }
2cd0f021 735
f1ad8c93
VK		 736 if (!is_valid_ether_addr(mac)) {
737 wil_err(wil, "BL: Invalid MAC %pM\n", mac);
2cd0f021
VK		 738 return -EINVAL;
739 }
740
f1ad8c93 741 ether_addr_copy(ndev->perm_addr, mac);
b42f1196 742 ether_addr_copy(wiphy->perm_addr, mac);
2cd0f021 743 if (!is_valid_ether_addr(ndev->dev_addr))
f1ad8c93
VK		 744 ether_addr_copy(ndev->dev_addr, mac);
745
746 if (rf_status) {/* bad RF cable? */
747 wil_err(wil, "RF communication error 0x%04x",
748 rf_status);
749 return -EAGAIN;
750 }
2cd0f021
VK		 751
752 return 0;
753}
754
409ead54
VK		 755static void wil_bl_crash_info(struct wil6210_priv *wil, bool is_err)
756{
757 u32 bl_assert_code, bl_assert_blink, bl_magic_number;
758 u32 bl_ver = wil_r(wil, RGF_USER_BL +
759 offsetof(struct bl_dedicated_registers_v0,
760 boot_loader_struct_version));
761
762 if (bl_ver < 2)
763 return;
764
765 bl_assert_code = wil_r(wil, RGF_USER_BL +
766 offsetof(struct bl_dedicated_registers_v1,
767 bl_assert_code));
768 bl_assert_blink = wil_r(wil, RGF_USER_BL +
769 offsetof(struct bl_dedicated_registers_v1,
770 bl_assert_blink));
771 bl_magic_number = wil_r(wil, RGF_USER_BL +
772 offsetof(struct bl_dedicated_registers_v1,
773 bl_magic_number));
774
775 if (is_err) {
776 wil_err(wil,
777 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n",
778 bl_assert_code, bl_assert_blink, bl_magic_number);
779 } else {
780 wil_dbg_misc(wil,
781 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n",
782 bl_assert_code, bl_assert_blink, bl_magic_number);
783 }
784}
785
2be7d22f
VK		 786static int wil_wait_for_fw_ready(struct wil6210_priv *wil)
787{
788 ulong to = msecs_to_jiffies(1000);
789 ulong left = wait_for_completion_timeout(&wil->wmi_ready, to);
8fe59627 790
2be7d22f
VK		 791 if (0 == left) {
792 wil_err(wil, "Firmware not ready\n");
793 return -ETIME;
794 } else {
15e23124
VK		 795 wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n",
796 jiffies_to_msecs(to-left), wil->hw_version);
2be7d22f
VK		 797 }
798 return 0;
799}
800
801/*
802 * We reset all the structures, and we reset the UMAC.
803 * After calling this routine, you're expected to reload
804 * the firmware.
805 */
2cd0f021 806int wil_reset(struct wil6210_priv *wil, bool load_fw)
2be7d22f
VK		 807{
808 int rc;
809
9cf10d62
VK		 810 wil_dbg_misc(wil, "%s()\n", __func__);
811
097638a0 812 WARN_ON(!mutex_is_locked(&wil->mutex));
9419b6a2 813 WARN_ON(test_bit(wil_status_napi_en, wil->status));
097638a0 814
bfc2dc7a
VK		 815 if (debug_fw) {
816 static const u8 mac[ETH_ALEN] = {
817 0x00, 0xde, 0xad, 0x12, 0x34, 0x56,
818 };
819 struct net_device *ndev = wil_to_ndev(wil);
820
821 ether_addr_copy(ndev->perm_addr, mac);
822 ether_addr_copy(ndev->dev_addr, ndev->perm_addr);
823 return 0;
824 }
825
67131a1d
VK		 826 if (wil->hw_version == HW_VER_UNKNOWN)
827 return -ENODEV;
828
5f0823ef
ME		 829 if (wil->platform_ops.notify) {
830 rc = wil->platform_ops.notify(wil->platform_handle,
831 WIL_PLATFORM_EVT_PRE_RESET);
832 if (rc)
833 wil_err(wil,
834 "%s: PRE_RESET platform notify failed, rc %d\n",
835 __func__, rc);
836 }
837
f13e0630
HK		 838 set_bit(wil_status_resetting, wil->status);
839
097638a0 840 cancel_work_sync(&wil->disconnect_worker);
4821e6d8 841 wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
41d6b093 842 wil_bcast_fini(wil);
097638a0 843
10d599ad
ME		 844 /* Disable device led before reset*/
845 wmi_led_cfg(wil, false);
846
452133a7
ME		 847 /* prevent NAPI from being scheduled and prevent wmi commands */
848 mutex_lock(&wil->wmi_mutex);
9419b6a2 849 bitmap_zero(wil->status, wil_status_last);
452133a7 850 mutex_unlock(&wil->wmi_mutex);
0fef1818 851
ed6f9dc6 852 if (wil->scan_request) {
1d76250b
AS		 853 struct cfg80211_scan_info info = {
854 .aborted = true,
855 };
856
ed6f9dc6
VK		 857 wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
858 wil->scan_request);
047e5d74 859 del_timer_sync(&wil->scan_timer);
1d76250b 860 cfg80211_scan_done(wil->scan_request, &info);
ed6f9dc6
VK		 861 wil->scan_request = NULL;
862 }
863
e4dbb093 864 wil_mask_irq(wil);
e08b5906 865
2be7d22f
VK		 866 wmi_event_flush(wil);
867
3277213f 868 flush_workqueue(wil->wq_service);
e08b5906 869 flush_workqueue(wil->wmi_wq);
2be7d22f 870
409ead54 871 wil_bl_crash_info(wil, false);
bbb2adc7 872 rc = wil_target_reset(wil);
8bf6adb9 873 wil_rx_fini(wil);
409ead54
VK		 874 if (rc) {
875 wil_bl_crash_info(wil, true);
bbb2adc7 876 return rc;
409ead54 877 }
bbb2adc7 878
2cd0f021 879 rc = wil_get_bl_info(wil);
f1ad8c93
VK		 880 if (rc == -EAGAIN && !load_fw) /* ignore RF error if not going up */
881 rc = 0;
2cd0f021
VK		 882 if (rc)
883 return rc;
884
1f1a361a 885 wil_set_oob_mode(wil, oob_mode);
2cd0f021
VK		 886 if (load_fw) {
887 wil_info(wil, "Use firmware <%s> + board <%s>\n", WIL_FW_NAME,
888 WIL_FW2_NAME);
889
151a9706
VK		 890 wil_halt_cpu(wil);
891 /* Loading f/w from the file */
892 rc = wil_request_firmware(wil, WIL_FW_NAME);
893 if (rc)
894 return rc;
2cd0f021
VK		 895 rc = wil_request_firmware(wil, WIL_FW2_NAME);
896 if (rc)
897 return rc;
898
899 /* Mark FW as loaded from host */
b9eeb512 900 wil_s(wil, RGF_USER_USAGE_6, 1);
151a9706 901
2cd0f021
VK		 902 /* clear any interrupts which on-card-firmware
903 * may have set
904 */
151a9706 905 wil6210_clear_irq(wil);
2cd0f021
VK		 906 /* CAF_ICR - clear and mask */
907 /* it is W1C, clear by writing back same value */
b9eeb512
VK		 908 wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0);
909 wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0);
2cd0f021 910
151a9706 911 wil_release_cpu(wil);
151a9706 912 }
8bf6adb9 913
2be7d22f 914 /* init after reset */
02beaf1a 915 wil->ap_isolate = 0;
16735d02 916 reinit_completion(&wil->wmi_ready);
59502647 917 reinit_completion(&wil->wmi_call);
349214c1 918 reinit_completion(&wil->halp.comp);
2be7d22f 919
2cd0f021
VK		 920 if (load_fw) {
921 wil_configure_interrupt_moderation(wil);
922 wil_unmask_irq(wil);
2be7d22f 923
2cd0f021
VK		 924 /* we just started MAC, wait for FW ready */
925 rc = wil_wait_for_fw_ready(wil);
5f0823ef
ME		 926 if (rc)
927 return rc;
928
929 /* check FW is responsive */
930 rc = wmi_echo(wil);
931 if (rc) {
932 wil_err(wil, "%s: wmi_echo failed, rc %d\n",
933 __func__, rc);
934 return rc;
935 }
936
937 if (wil->platform_ops.notify) {
938 rc = wil->platform_ops.notify(wil->platform_handle,
939 WIL_PLATFORM_EVT_FW_RDY);
940 if (rc) {
941 wil_err(wil,
942 "%s: FW_RDY notify failed, rc %d\n",
943 __func__, rc);
944 rc = 0;
945 }
946 }
2cd0f021 947 }
2be7d22f
VK		 948
949 return rc;
950}
951
ed6f9dc6
VK		 952void wil_fw_error_recovery(struct wil6210_priv *wil)
953{
954 wil_dbg_misc(wil, "starting fw error recovery\n");
f13e0630
HK		 955
956 if (test_bit(wil_status_resetting, wil->status)) {
957 wil_info(wil, "Reset already in progress\n");
958 return;
959 }
960
c33407a8 961 wil->recovery_state = fw_recovery_pending;
ed6f9dc6
VK		 962 schedule_work(&wil->fw_error_worker);
963}
2be7d22f 964
73d839ae 965int __wil_up(struct wil6210_priv *wil)
2be7d22f
VK		 966{
967 struct net_device *ndev = wil_to_ndev(wil);
968 struct wireless_dev *wdev = wil->wdev;
2be7d22f 969 int rc;
2be7d22f 970
097638a0
VK		 971 WARN_ON(!mutex_is_locked(&wil->mutex));
972
2cd0f021 973 rc = wil_reset(wil, true);
2be7d22f
VK		 974 if (rc)
975 return rc;
976
e31b2562 977 /* Rx VRING. After MAC and beacon */
d3762b40 978 rc = wil_rx_init(wil, 1 << rx_ring_order);
e31b2562
VK		 979 if (rc)
980 return rc;
981
2be7d22f
VK		 982 switch (wdev->iftype) {
983 case NL80211_IFTYPE_STATION:
7743882d 984 wil_dbg_misc(wil, "type: STATION\n");
2be7d22f
VK		 985 ndev->type = ARPHRD_ETHER;
986 break;
987 case NL80211_IFTYPE_AP:
7743882d 988 wil_dbg_misc(wil, "type: AP\n");
2be7d22f
VK		 989 ndev->type = ARPHRD_ETHER;
990 break;
991 case NL80211_IFTYPE_P2P_CLIENT:
7743882d 992 wil_dbg_misc(wil, "type: P2P_CLIENT\n");
2be7d22f
VK		 993 ndev->type = ARPHRD_ETHER;
994 break;
995 case NL80211_IFTYPE_P2P_GO:
7743882d 996 wil_dbg_misc(wil, "type: P2P_GO\n");
2be7d22f
VK		 997 ndev->type = ARPHRD_ETHER;
998 break;
999 case NL80211_IFTYPE_MONITOR:
7743882d 1000 wil_dbg_misc(wil, "type: Monitor\n");
2be7d22f
VK		 1001 ndev->type = ARPHRD_IEEE80211_RADIOTAP;
1002 /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
1003 break;
1004 default:
1005 return -EOPNOTSUPP;
1006 }
1007
2be7d22f
VK		 1008 /* MAC address - pre-requisite for other commands */
1009 wmi_set_mac_address(wil, ndev->dev_addr);
1010
73d839ae 1011 wil_dbg_misc(wil, "NAPI enable\n");
e0287c4a
VK		 1012 napi_enable(&wil->napi_rx);
1013 napi_enable(&wil->napi_tx);
9419b6a2 1014 set_bit(wil_status_napi_en, wil->status);
e0287c4a 1015
f772ebfb
VK		 1016 if (wil->platform_ops.bus_request)
1017 wil->platform_ops.bus_request(wil->platform_handle,
1018 WIL_MAX_BUS_REQUEST_KBPS);
1019
2be7d22f
VK		 1020 return 0;
1021}
1022
1023int wil_up(struct wil6210_priv *wil)
1024{
1025 int rc;
1026
9cf10d62
VK		 1027 wil_dbg_misc(wil, "%s()\n", __func__);
1028
2be7d22f
VK		 1029 mutex_lock(&wil->mutex);
1030 rc = __wil_up(wil);
1031 mutex_unlock(&wil->mutex);
1032
1033 return rc;
1034}
1035
73d839ae 1036int __wil_down(struct wil6210_priv *wil)
2be7d22f 1037{
78771d76 1038 int rc;
f172b563 1039
097638a0
VK		 1040 WARN_ON(!mutex_is_locked(&wil->mutex));
1041
f772ebfb
VK		 1042 if (wil->platform_ops.bus_request)
1043 wil->platform_ops.bus_request(wil->platform_handle, 0);
1044
73d839ae 1045 wil_disable_irq(wil);
9419b6a2 1046 if (test_and_clear_bit(wil_status_napi_en, wil->status)) {
73d839ae
VK		 1047 napi_disable(&wil->napi_rx);
1048 napi_disable(&wil->napi_tx);
1049 wil_dbg_misc(wil, "NAPI disable\n");
1050 }
1051 wil_enable_irq(wil);
e0287c4a 1052
280ab987 1053 (void)wil_p2p_stop_discovery(wil);
e6d68341 1054
2be7d22f 1055 if (wil->scan_request) {
1d76250b
AS		 1056 struct cfg80211_scan_info info = {
1057 .aborted = true,
1058 };
1059
2a91d7d0
VK		 1060 wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
1061 wil->scan_request);
047e5d74 1062 del_timer_sync(&wil->scan_timer);
1d76250b 1063 cfg80211_scan_done(wil->scan_request, &info);
2be7d22f
VK		 1064 wil->scan_request = NULL;
1065 }
1066
9419b6a2 1067 if (test_bit(wil_status_fwconnected, wil->status) ||
78771d76 1068 test_bit(wil_status_fwconnecting, wil->status)) {
f172b563 1069
78771d76
VK		 1070 mutex_unlock(&wil->mutex);
1071 rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
1072 WMI_DISCONNECT_EVENTID, NULL, 0,
1073 WIL6210_DISCONNECT_TO_MS);
1074 mutex_lock(&wil->mutex);
1075 if (rc)
1076 wil_err(wil, "timeout waiting for disconnect\n");
f172b563 1077 }
f172b563 1078
2cd0f021 1079 wil_reset(wil, false);
2be7d22f
VK		 1080
1081 return 0;
1082}
1083
1084int wil_down(struct wil6210_priv *wil)
1085{
1086 int rc;
1087
9cf10d62
VK		 1088 wil_dbg_misc(wil, "%s()\n", __func__);
1089
c33407a8 1090 wil_set_recovery_state(wil, fw_recovery_idle);
2be7d22f
VK		 1091 mutex_lock(&wil->mutex);
1092 rc = __wil_down(wil);
1093 mutex_unlock(&wil->mutex);
1094
1095 return rc;
1096}
3df2cd36
VK		 1097
1098int wil_find_cid(struct wil6210_priv *wil, const u8 *mac)
1099{
1100 int i;
1101 int rc = -ENOENT;
1102
1103 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
1104 if ((wil->sta[i].status != wil_sta_unused) &&
108d1eb6 1105 ether_addr_equal(wil->sta[i].addr, mac)) {
3df2cd36
VK		 1106 rc = i;
1107 break;
1108 }
1109 }
1110
1111 return rc;
1112}
349214c1
ME		 1113
1114void wil_halp_vote(struct wil6210_priv *wil)
1115{
1116 unsigned long rc;
1117 unsigned long to_jiffies = msecs_to_jiffies(WAIT_FOR_HALP_VOTE_MS);
1118
1119 mutex_lock(&wil->halp.lock);
1120
1121 wil_dbg_misc(wil, "%s: start, HALP ref_cnt (%d)\n", __func__,
1122 wil->halp.ref_cnt);
1123
1124 if (++wil->halp.ref_cnt == 1) {
1125 wil6210_set_halp(wil);
1126 rc = wait_for_completion_timeout(&wil->halp.comp, to_jiffies);
1127 if (!rc)
1128 wil_err(wil, "%s: HALP vote timed out\n", __func__);
1129 else
1130 wil_dbg_misc(wil,
1131 "%s: HALP vote completed after %d ms\n",
1132 __func__,
1133 jiffies_to_msecs(to_jiffies - rc));
1134 }
1135
1136 wil_dbg_misc(wil, "%s: end, HALP ref_cnt (%d)\n", __func__,
1137 wil->halp.ref_cnt);
1138
1139 mutex_unlock(&wil->halp.lock);
1140}
1141
1142void wil_halp_unvote(struct wil6210_priv *wil)
1143{
1144 WARN_ON(wil->halp.ref_cnt == 0);
1145
1146 mutex_lock(&wil->halp.lock);
1147
1148 wil_dbg_misc(wil, "%s: start, HALP ref_cnt (%d)\n", __func__,
1149 wil->halp.ref_cnt);
1150
1151 if (--wil->halp.ref_cnt == 0) {
1152 wil6210_clear_halp(wil);
1153 wil_dbg_misc(wil, "%s: HALP unvote\n", __func__);
1154 }
1155
1156 wil_dbg_misc(wil, "%s: end, HALP ref_cnt (%d)\n", __func__,
1157 wil->halp.ref_cnt);
1158
1159 mutex_unlock(&wil->halp.lock);
1160}
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