]>
Commit | Line | Data |
---|---|---|
bb9f8692 ZY |
1 | /* |
2 | * Intel Wireless Multicomm 3200 WiFi driver | |
3 | * | |
4 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * * Neither the name of Intel Corporation nor the names of its | |
17 | * contributors may be used to endorse or promote products derived | |
18 | * from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | * | |
32 | * | |
33 | * Intel Corporation <ilw@linux.intel.com> | |
34 | * Samuel Ortiz <samuel.ortiz@intel.com> | |
35 | * Zhu Yi <yi.zhu@intel.com> | |
36 | * | |
37 | */ | |
38 | ||
39 | #include <linux/kernel.h> | |
40 | #include <linux/netdevice.h> | |
d43c36dc | 41 | #include <linux/sched.h> |
bb9f8692 ZY |
42 | #include <linux/ieee80211.h> |
43 | #include <linux/wireless.h> | |
44 | ||
45 | #include "iwm.h" | |
46 | #include "debug.h" | |
47 | #include "bus.h" | |
48 | #include "umac.h" | |
49 | #include "commands.h" | |
50 | #include "hal.h" | |
51 | #include "fw.h" | |
52 | #include "rx.h" | |
53 | ||
54 | static struct iwm_conf def_iwm_conf = { | |
55 | ||
56 | .sdio_ior_timeout = 5000, | |
d04bd628 SO |
57 | .calib_map = BIT(CALIB_CFG_DC_IDX) | |
58 | BIT(CALIB_CFG_LO_IDX) | | |
59 | BIT(CALIB_CFG_TX_IQ_IDX) | | |
60 | BIT(CALIB_CFG_RX_IQ_IDX) | | |
61 | BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD), | |
62 | .expected_calib_map = BIT(PHY_CALIBRATE_DC_CMD) | | |
bb9f8692 ZY |
63 | BIT(PHY_CALIBRATE_LO_CMD) | |
64 | BIT(PHY_CALIBRATE_TX_IQ_CMD) | | |
65 | BIT(PHY_CALIBRATE_RX_IQ_CMD) | | |
66 | BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD), | |
e85498b2 SO |
67 | .ct_kill_entry = 110, |
68 | .ct_kill_exit = 110, | |
bb9f8692 ZY |
69 | .reset_on_fatal_err = 1, |
70 | .auto_connect = 1, | |
71 | .wimax_not_present = 0, | |
72 | .enable_qos = 1, | |
73 | .mode = UMAC_MODE_BSS, | |
74 | ||
75 | /* UMAC configuration */ | |
76 | .power_index = 0, | |
77 | .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD, | |
78 | .rts_threshold = IEEE80211_MAX_RTS_THRESHOLD, | |
79 | .cts_to_self = 0, | |
80 | ||
81 | .assoc_timeout = 2, | |
82 | .roam_timeout = 10, | |
0bed08de SO |
83 | .wireless_mode = WIRELESS_MODE_11A | WIRELESS_MODE_11G | |
84 | WIRELESS_MODE_11N, | |
bb9f8692 ZY |
85 | .coexist_mode = COEX_MODE_CM, |
86 | ||
87 | /* IBSS */ | |
88 | .ibss_band = UMAC_BAND_2GHZ, | |
89 | .ibss_channel = 1, | |
90 | ||
91 | .mac_addr = {0x00, 0x02, 0xb3, 0x01, 0x02, 0x03}, | |
92 | }; | |
93 | ||
94 | static int modparam_reset; | |
95 | module_param_named(reset, modparam_reset, bool, 0644); | |
96 | MODULE_PARM_DESC(reset, "reset on firmware errors (default 0 [not reset])"); | |
97 | ||
98 | int iwm_mode_to_nl80211_iftype(int mode) | |
99 | { | |
100 | switch (mode) { | |
101 | case UMAC_MODE_BSS: | |
102 | return NL80211_IFTYPE_STATION; | |
103 | case UMAC_MODE_IBSS: | |
104 | return NL80211_IFTYPE_ADHOC; | |
105 | default: | |
106 | return NL80211_IFTYPE_UNSPECIFIED; | |
107 | } | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | static void iwm_statistics_request(struct work_struct *work) | |
113 | { | |
114 | struct iwm_priv *iwm = | |
115 | container_of(work, struct iwm_priv, stats_request.work); | |
116 | ||
117 | iwm_send_umac_stats_req(iwm, 0); | |
118 | } | |
119 | ||
c7436273 ZY |
120 | static void iwm_disconnect_work(struct work_struct *work) |
121 | { | |
122 | struct iwm_priv *iwm = | |
123 | container_of(work, struct iwm_priv, disconnect.work); | |
124 | ||
125 | if (iwm->umac_profile_active) | |
126 | iwm_invalidate_mlme_profile(iwm); | |
127 | ||
128 | clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status); | |
129 | iwm->umac_profile_active = 0; | |
130 | memset(iwm->bssid, 0, ETH_ALEN); | |
131 | iwm->channel = 0; | |
132 | ||
133 | iwm_link_off(iwm); | |
134 | ||
135 | wake_up_interruptible(&iwm->mlme_queue); | |
136 | ||
137 | cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0, GFP_KERNEL); | |
138 | } | |
139 | ||
e85498b2 SO |
140 | static void iwm_ct_kill_work(struct work_struct *work) |
141 | { | |
142 | struct iwm_priv *iwm = | |
143 | container_of(work, struct iwm_priv, ct_kill_delay.work); | |
144 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
145 | ||
146 | IWM_INFO(iwm, "CT kill delay timeout\n"); | |
147 | ||
148 | wiphy_rfkill_set_hw_state(wiphy, false); | |
149 | } | |
150 | ||
31452420 ZY |
151 | static int __iwm_up(struct iwm_priv *iwm); |
152 | static int __iwm_down(struct iwm_priv *iwm); | |
68810c5d | 153 | |
bb9f8692 ZY |
154 | static void iwm_reset_worker(struct work_struct *work) |
155 | { | |
156 | struct iwm_priv *iwm; | |
157 | struct iwm_umac_profile *profile = NULL; | |
158 | int uninitialized_var(ret), retry = 0; | |
159 | ||
160 | iwm = container_of(work, struct iwm_priv, reset_worker); | |
161 | ||
68810c5d ZY |
162 | /* |
163 | * XXX: The iwm->mutex is introduced purely for this reset work, | |
164 | * because the other users for iwm_up and iwm_down are only netdev | |
165 | * ndo_open and ndo_stop which are already protected by rtnl. | |
166 | * Please remove iwm->mutex together if iwm_reset_worker() is not | |
167 | * required in the future. | |
168 | */ | |
169 | if (!mutex_trylock(&iwm->mutex)) { | |
170 | IWM_WARN(iwm, "We are in the middle of interface bringing " | |
171 | "UP/DOWN. Skip driver resetting.\n"); | |
172 | return; | |
173 | } | |
174 | ||
bb9f8692 ZY |
175 | if (iwm->umac_profile_active) { |
176 | profile = kmalloc(sizeof(struct iwm_umac_profile), GFP_KERNEL); | |
177 | if (profile) | |
178 | memcpy(profile, iwm->umac_profile, sizeof(*profile)); | |
179 | else | |
180 | IWM_ERR(iwm, "Couldn't alloc memory for profile\n"); | |
181 | } | |
182 | ||
68810c5d | 183 | __iwm_down(iwm); |
bb9f8692 ZY |
184 | |
185 | while (retry++ < 3) { | |
68810c5d | 186 | ret = __iwm_up(iwm); |
bb9f8692 ZY |
187 | if (!ret) |
188 | break; | |
189 | ||
190 | schedule_timeout_uninterruptible(10 * HZ); | |
191 | } | |
192 | ||
193 | if (ret) { | |
194 | IWM_WARN(iwm, "iwm_up() failed: %d\n", ret); | |
195 | ||
196 | kfree(profile); | |
68810c5d | 197 | goto out; |
bb9f8692 ZY |
198 | } |
199 | ||
200 | if (profile) { | |
201 | IWM_DBG_MLME(iwm, DBG, "Resend UMAC profile\n"); | |
202 | memcpy(iwm->umac_profile, profile, sizeof(*profile)); | |
203 | iwm_send_mlme_profile(iwm); | |
204 | kfree(profile); | |
d210176e SO |
205 | } else |
206 | clear_bit(IWM_STATUS_RESETTING, &iwm->status); | |
68810c5d ZY |
207 | |
208 | out: | |
209 | mutex_unlock(&iwm->mutex); | |
bb9f8692 ZY |
210 | } |
211 | ||
9829e1b5 SO |
212 | static void iwm_auth_retry_worker(struct work_struct *work) |
213 | { | |
214 | struct iwm_priv *iwm; | |
215 | int i, ret; | |
216 | ||
217 | iwm = container_of(work, struct iwm_priv, auth_retry_worker); | |
218 | if (iwm->umac_profile_active) { | |
219 | ret = iwm_invalidate_mlme_profile(iwm); | |
220 | if (ret < 0) | |
221 | return; | |
222 | } | |
223 | ||
224 | iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
225 | ||
226 | ret = iwm_send_mlme_profile(iwm); | |
227 | if (ret < 0) | |
228 | return; | |
229 | ||
230 | for (i = 0; i < IWM_NUM_KEYS; i++) | |
231 | if (iwm->keys[i].key_len) | |
232 | iwm_set_key(iwm, 0, &iwm->keys[i]); | |
233 | ||
234 | iwm_set_tx_key(iwm, iwm->default_key); | |
235 | } | |
236 | ||
237 | ||
238 | ||
bb9f8692 ZY |
239 | static void iwm_watchdog(unsigned long data) |
240 | { | |
241 | struct iwm_priv *iwm = (struct iwm_priv *)data; | |
242 | ||
243 | IWM_WARN(iwm, "Watchdog expired: UMAC stalls!\n"); | |
244 | ||
245 | if (modparam_reset) | |
d210176e | 246 | iwm_resetting(iwm); |
bb9f8692 ZY |
247 | } |
248 | ||
249 | int iwm_priv_init(struct iwm_priv *iwm) | |
250 | { | |
251 | int i; | |
252 | char name[32]; | |
253 | ||
254 | iwm->status = 0; | |
255 | INIT_LIST_HEAD(&iwm->pending_notif); | |
256 | init_waitqueue_head(&iwm->notif_queue); | |
257 | init_waitqueue_head(&iwm->nonwifi_queue); | |
a70742f1 | 258 | init_waitqueue_head(&iwm->wifi_ntfy_queue); |
bb9f8692 ZY |
259 | init_waitqueue_head(&iwm->mlme_queue); |
260 | memcpy(&iwm->conf, &def_iwm_conf, sizeof(struct iwm_conf)); | |
261 | spin_lock_init(&iwm->tx_credit.lock); | |
262 | INIT_LIST_HEAD(&iwm->wifi_pending_cmd); | |
263 | INIT_LIST_HEAD(&iwm->nonwifi_pending_cmd); | |
264 | iwm->wifi_seq_num = UMAC_WIFI_SEQ_NUM_BASE; | |
265 | iwm->nonwifi_seq_num = UMAC_NONWIFI_SEQ_NUM_BASE; | |
266 | spin_lock_init(&iwm->cmd_lock); | |
267 | iwm->scan_id = 1; | |
268 | INIT_DELAYED_WORK(&iwm->stats_request, iwm_statistics_request); | |
c7436273 | 269 | INIT_DELAYED_WORK(&iwm->disconnect, iwm_disconnect_work); |
e85498b2 | 270 | INIT_DELAYED_WORK(&iwm->ct_kill_delay, iwm_ct_kill_work); |
bb9f8692 | 271 | INIT_WORK(&iwm->reset_worker, iwm_reset_worker); |
9829e1b5 | 272 | INIT_WORK(&iwm->auth_retry_worker, iwm_auth_retry_worker); |
bb9f8692 ZY |
273 | INIT_LIST_HEAD(&iwm->bss_list); |
274 | ||
275 | skb_queue_head_init(&iwm->rx_list); | |
276 | INIT_LIST_HEAD(&iwm->rx_tickets); | |
277 | for (i = 0; i < IWM_RX_ID_HASH; i++) | |
278 | INIT_LIST_HEAD(&iwm->rx_packets[i]); | |
279 | ||
280 | INIT_WORK(&iwm->rx_worker, iwm_rx_worker); | |
281 | ||
282 | iwm->rx_wq = create_singlethread_workqueue(KBUILD_MODNAME "_rx"); | |
283 | if (!iwm->rx_wq) | |
284 | return -EAGAIN; | |
285 | ||
286 | for (i = 0; i < IWM_TX_QUEUES; i++) { | |
287 | INIT_WORK(&iwm->txq[i].worker, iwm_tx_worker); | |
288 | snprintf(name, 32, KBUILD_MODNAME "_tx_%d", i); | |
289 | iwm->txq[i].id = i; | |
290 | iwm->txq[i].wq = create_singlethread_workqueue(name); | |
291 | if (!iwm->txq[i].wq) | |
292 | return -EAGAIN; | |
293 | ||
294 | skb_queue_head_init(&iwm->txq[i].queue); | |
295 | } | |
296 | ||
297 | for (i = 0; i < IWM_NUM_KEYS; i++) | |
298 | memset(&iwm->keys[i], 0, sizeof(struct iwm_key)); | |
299 | ||
13e0fe70 | 300 | iwm->default_key = -1; |
bb9f8692 ZY |
301 | |
302 | init_timer(&iwm->watchdog); | |
303 | iwm->watchdog.function = iwm_watchdog; | |
304 | iwm->watchdog.data = (unsigned long)iwm; | |
68810c5d | 305 | mutex_init(&iwm->mutex); |
bb9f8692 | 306 | |
04e715cd SO |
307 | iwm->last_fw_err = kzalloc(sizeof(struct iwm_fw_error_hdr), |
308 | GFP_KERNEL); | |
309 | if (iwm->last_fw_err == NULL) | |
310 | return -ENOMEM; | |
311 | ||
bb9f8692 ZY |
312 | return 0; |
313 | } | |
314 | ||
8d96e796 ZY |
315 | void iwm_priv_deinit(struct iwm_priv *iwm) |
316 | { | |
317 | int i; | |
318 | ||
319 | for (i = 0; i < IWM_TX_QUEUES; i++) | |
320 | destroy_workqueue(iwm->txq[i].wq); | |
321 | ||
322 | destroy_workqueue(iwm->rx_wq); | |
04e715cd | 323 | kfree(iwm->last_fw_err); |
8d96e796 ZY |
324 | } |
325 | ||
bb9f8692 ZY |
326 | /* |
327 | * We reset all the structures, and we reset the UMAC. | |
328 | * After calling this routine, you're expected to reload | |
329 | * the firmware. | |
330 | */ | |
331 | void iwm_reset(struct iwm_priv *iwm) | |
332 | { | |
333 | struct iwm_notif *notif, *next; | |
334 | ||
335 | if (test_bit(IWM_STATUS_READY, &iwm->status)) | |
336 | iwm_target_reset(iwm); | |
337 | ||
d210176e SO |
338 | if (test_bit(IWM_STATUS_RESETTING, &iwm->status)) { |
339 | iwm->status = 0; | |
340 | set_bit(IWM_STATUS_RESETTING, &iwm->status); | |
341 | } else | |
342 | iwm->status = 0; | |
bb9f8692 ZY |
343 | iwm->scan_id = 1; |
344 | ||
345 | list_for_each_entry_safe(notif, next, &iwm->pending_notif, pending) { | |
346 | list_del(¬if->pending); | |
347 | kfree(notif->buf); | |
348 | kfree(notif); | |
349 | } | |
350 | ||
351 | iwm_cmd_flush(iwm); | |
352 | ||
353 | flush_workqueue(iwm->rx_wq); | |
354 | ||
355 | iwm_link_off(iwm); | |
356 | } | |
357 | ||
d210176e SO |
358 | void iwm_resetting(struct iwm_priv *iwm) |
359 | { | |
360 | set_bit(IWM_STATUS_RESETTING, &iwm->status); | |
361 | ||
362 | schedule_work(&iwm->reset_worker); | |
363 | } | |
364 | ||
bb9f8692 ZY |
365 | /* |
366 | * Notification code: | |
367 | * | |
368 | * We're faced with the following issue: Any host command can | |
369 | * have an answer or not, and if there's an answer to expect, | |
370 | * it can be treated synchronously or asynchronously. | |
371 | * To work around the synchronous answer case, we implemented | |
372 | * our notification mechanism. | |
373 | * When a code path needs to wait for a command response | |
374 | * synchronously, it calls notif_handle(), which waits for the | |
375 | * right notification to show up, and then process it. Before | |
376 | * starting to wait, it registered as a waiter for this specific | |
377 | * answer (by toggling a bit in on of the handler_map), so that | |
378 | * the rx code knows that it needs to send a notification to the | |
379 | * waiting processes. It does so by calling iwm_notif_send(), | |
380 | * which adds the notification to the pending notifications list, | |
381 | * and then wakes the waiting processes up. | |
382 | */ | |
383 | int iwm_notif_send(struct iwm_priv *iwm, struct iwm_wifi_cmd *cmd, | |
384 | u8 cmd_id, u8 source, u8 *buf, unsigned long buf_size) | |
385 | { | |
386 | struct iwm_notif *notif; | |
387 | ||
388 | notif = kzalloc(sizeof(struct iwm_notif), GFP_KERNEL); | |
389 | if (!notif) { | |
390 | IWM_ERR(iwm, "Couldn't alloc memory for notification\n"); | |
391 | return -ENOMEM; | |
392 | } | |
393 | ||
394 | INIT_LIST_HEAD(¬if->pending); | |
395 | notif->cmd = cmd; | |
396 | notif->cmd_id = cmd_id; | |
397 | notif->src = source; | |
398 | notif->buf = kzalloc(buf_size, GFP_KERNEL); | |
399 | if (!notif->buf) { | |
400 | IWM_ERR(iwm, "Couldn't alloc notification buffer\n"); | |
401 | kfree(notif); | |
402 | return -ENOMEM; | |
403 | } | |
404 | notif->buf_size = buf_size; | |
405 | memcpy(notif->buf, buf, buf_size); | |
406 | list_add_tail(¬if->pending, &iwm->pending_notif); | |
407 | ||
408 | wake_up_interruptible(&iwm->notif_queue); | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
413 | static struct iwm_notif *iwm_notif_find(struct iwm_priv *iwm, u32 cmd, | |
414 | u8 source) | |
415 | { | |
416 | struct iwm_notif *notif, *next; | |
417 | ||
418 | list_for_each_entry_safe(notif, next, &iwm->pending_notif, pending) { | |
419 | if ((notif->cmd_id == cmd) && (notif->src == source)) { | |
420 | list_del(¬if->pending); | |
421 | return notif; | |
422 | } | |
423 | } | |
424 | ||
425 | return NULL; | |
426 | } | |
427 | ||
428 | static struct iwm_notif *iwm_notif_wait(struct iwm_priv *iwm, u32 cmd, | |
429 | u8 source, long timeout) | |
430 | { | |
431 | int ret; | |
432 | struct iwm_notif *notif; | |
433 | unsigned long *map = NULL; | |
434 | ||
435 | switch (source) { | |
436 | case IWM_SRC_LMAC: | |
437 | map = &iwm->lmac_handler_map[0]; | |
438 | break; | |
439 | case IWM_SRC_UMAC: | |
440 | map = &iwm->umac_handler_map[0]; | |
441 | break; | |
442 | case IWM_SRC_UDMA: | |
443 | map = &iwm->udma_handler_map[0]; | |
444 | break; | |
445 | } | |
446 | ||
447 | set_bit(cmd, map); | |
448 | ||
449 | ret = wait_event_interruptible_timeout(iwm->notif_queue, | |
450 | ((notif = iwm_notif_find(iwm, cmd, source)) != NULL), | |
451 | timeout); | |
452 | clear_bit(cmd, map); | |
453 | ||
454 | if (!ret) | |
455 | return NULL; | |
456 | ||
457 | return notif; | |
458 | } | |
459 | ||
460 | int iwm_notif_handle(struct iwm_priv *iwm, u32 cmd, u8 source, long timeout) | |
461 | { | |
462 | int ret; | |
463 | struct iwm_notif *notif; | |
464 | ||
465 | notif = iwm_notif_wait(iwm, cmd, source, timeout); | |
466 | if (!notif) | |
467 | return -ETIME; | |
468 | ||
469 | ret = iwm_rx_handle_resp(iwm, notif->buf, notif->buf_size, notif->cmd); | |
470 | kfree(notif->buf); | |
471 | kfree(notif); | |
472 | ||
473 | return ret; | |
474 | } | |
475 | ||
476 | static int iwm_config_boot_params(struct iwm_priv *iwm) | |
477 | { | |
478 | struct iwm_udma_nonwifi_cmd target_cmd; | |
479 | int ret; | |
480 | ||
481 | /* check Wimax is off and config debug monitor */ | |
482 | if (iwm->conf.wimax_not_present) { | |
483 | u32 data1 = 0x1f; | |
484 | u32 addr1 = 0x606BE258; | |
485 | ||
486 | u32 data2_set = 0x0; | |
487 | u32 data2_clr = 0x1; | |
488 | u32 addr2 = 0x606BE100; | |
489 | ||
490 | u32 data3 = 0x1; | |
491 | u32 addr3 = 0x606BEC00; | |
492 | ||
493 | target_cmd.resp = 0; | |
494 | target_cmd.handle_by_hw = 0; | |
495 | target_cmd.eop = 1; | |
496 | ||
497 | target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE; | |
498 | target_cmd.addr = cpu_to_le32(addr1); | |
499 | target_cmd.op1_sz = cpu_to_le32(sizeof(u32)); | |
500 | target_cmd.op2 = 0; | |
501 | ||
502 | ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1); | |
503 | if (ret < 0) { | |
504 | IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n"); | |
505 | return ret; | |
506 | } | |
507 | ||
508 | target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ_MODIFY_WRITE; | |
509 | target_cmd.addr = cpu_to_le32(addr2); | |
510 | target_cmd.op1_sz = cpu_to_le32(data2_set); | |
511 | target_cmd.op2 = cpu_to_le32(data2_clr); | |
512 | ||
513 | ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1); | |
514 | if (ret < 0) { | |
515 | IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n"); | |
516 | return ret; | |
517 | } | |
518 | ||
519 | target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE; | |
520 | target_cmd.addr = cpu_to_le32(addr3); | |
521 | target_cmd.op1_sz = cpu_to_le32(sizeof(u32)); | |
522 | target_cmd.op2 = 0; | |
523 | ||
524 | ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data3); | |
525 | if (ret < 0) { | |
526 | IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n"); | |
527 | return ret; | |
528 | } | |
529 | } | |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
534 | void iwm_init_default_profile(struct iwm_priv *iwm, | |
535 | struct iwm_umac_profile *profile) | |
536 | { | |
537 | memset(profile, 0, sizeof(struct iwm_umac_profile)); | |
538 | ||
539 | profile->sec.auth_type = UMAC_AUTH_TYPE_OPEN; | |
540 | profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE; | |
541 | profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_NONE; | |
542 | profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_NONE; | |
543 | ||
544 | if (iwm->conf.enable_qos) | |
545 | profile->flags |= cpu_to_le16(UMAC_PROFILE_QOS_ALLOWED); | |
546 | ||
547 | profile->wireless_mode = iwm->conf.wireless_mode; | |
548 | profile->mode = cpu_to_le32(iwm->conf.mode); | |
549 | ||
550 | profile->ibss.atim = 0; | |
551 | profile->ibss.beacon_interval = 100; | |
552 | profile->ibss.join_only = 0; | |
553 | profile->ibss.band = iwm->conf.ibss_band; | |
554 | profile->ibss.channel = iwm->conf.ibss_channel; | |
555 | } | |
556 | ||
557 | void iwm_link_on(struct iwm_priv *iwm) | |
558 | { | |
559 | netif_carrier_on(iwm_to_ndev(iwm)); | |
560 | netif_tx_wake_all_queues(iwm_to_ndev(iwm)); | |
561 | ||
562 | iwm_send_umac_stats_req(iwm, 0); | |
563 | } | |
564 | ||
565 | void iwm_link_off(struct iwm_priv *iwm) | |
566 | { | |
567 | struct iw_statistics *wstats = &iwm->wstats; | |
568 | int i; | |
569 | ||
570 | netif_tx_stop_all_queues(iwm_to_ndev(iwm)); | |
571 | netif_carrier_off(iwm_to_ndev(iwm)); | |
572 | ||
573 | for (i = 0; i < IWM_TX_QUEUES; i++) { | |
574 | skb_queue_purge(&iwm->txq[i].queue); | |
575 | ||
576 | iwm->txq[i].concat_count = 0; | |
577 | iwm->txq[i].concat_ptr = iwm->txq[i].concat_buf; | |
578 | ||
579 | flush_workqueue(iwm->txq[i].wq); | |
580 | } | |
581 | ||
582 | iwm_rx_free(iwm); | |
583 | ||
68810c5d | 584 | cancel_delayed_work_sync(&iwm->stats_request); |
bb9f8692 ZY |
585 | memset(wstats, 0, sizeof(struct iw_statistics)); |
586 | wstats->qual.updated = IW_QUAL_ALL_INVALID; | |
587 | ||
b68518fc ZY |
588 | kfree(iwm->req_ie); |
589 | iwm->req_ie = NULL; | |
590 | iwm->req_ie_len = 0; | |
591 | kfree(iwm->resp_ie); | |
592 | iwm->resp_ie = NULL; | |
593 | iwm->resp_ie_len = 0; | |
594 | ||
bb9f8692 ZY |
595 | del_timer_sync(&iwm->watchdog); |
596 | } | |
597 | ||
598 | static void iwm_bss_list_clean(struct iwm_priv *iwm) | |
599 | { | |
600 | struct iwm_bss_info *bss, *next; | |
601 | ||
602 | list_for_each_entry_safe(bss, next, &iwm->bss_list, node) { | |
603 | list_del(&bss->node); | |
604 | kfree(bss->bss); | |
605 | kfree(bss); | |
606 | } | |
607 | } | |
608 | ||
609 | static int iwm_channels_init(struct iwm_priv *iwm) | |
610 | { | |
611 | int ret; | |
612 | ||
bb9f8692 ZY |
613 | ret = iwm_send_umac_channel_list(iwm); |
614 | if (ret) { | |
615 | IWM_ERR(iwm, "Send channel list failed\n"); | |
616 | return ret; | |
617 | } | |
618 | ||
619 | ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST, | |
620 | IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT); | |
621 | if (ret) { | |
622 | IWM_ERR(iwm, "Didn't get a channel list notification\n"); | |
623 | return ret; | |
624 | } | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
31452420 | 629 | static int __iwm_up(struct iwm_priv *iwm) |
bb9f8692 ZY |
630 | { |
631 | int ret; | |
632 | struct iwm_notif *notif_reboot, *notif_ack = NULL; | |
5dc53163 | 633 | struct wiphy *wiphy = iwm_to_wiphy(iwm); |
0bed08de | 634 | u32 wireless_mode; |
bb9f8692 ZY |
635 | |
636 | ret = iwm_bus_enable(iwm); | |
637 | if (ret) { | |
638 | IWM_ERR(iwm, "Couldn't enable function\n"); | |
639 | return ret; | |
640 | } | |
641 | ||
642 | iwm_rx_setup_handlers(iwm); | |
643 | ||
644 | /* Wait for initial BARKER_REBOOT from hardware */ | |
645 | notif_reboot = iwm_notif_wait(iwm, IWM_BARKER_REBOOT_NOTIFICATION, | |
646 | IWM_SRC_UDMA, 2 * HZ); | |
647 | if (!notif_reboot) { | |
648 | IWM_ERR(iwm, "Wait for REBOOT_BARKER timeout\n"); | |
649 | goto err_disable; | |
650 | } | |
651 | ||
652 | /* We send the barker back */ | |
653 | ret = iwm_bus_send_chunk(iwm, notif_reboot->buf, 16); | |
654 | if (ret) { | |
655 | IWM_ERR(iwm, "REBOOT barker response failed\n"); | |
656 | kfree(notif_reboot); | |
657 | goto err_disable; | |
658 | } | |
659 | ||
660 | kfree(notif_reboot->buf); | |
661 | kfree(notif_reboot); | |
662 | ||
663 | /* Wait for ACK_BARKER from hardware */ | |
664 | notif_ack = iwm_notif_wait(iwm, IWM_ACK_BARKER_NOTIFICATION, | |
665 | IWM_SRC_UDMA, 2 * HZ); | |
666 | if (!notif_ack) { | |
667 | IWM_ERR(iwm, "Wait for ACK_BARKER timeout\n"); | |
668 | goto err_disable; | |
669 | } | |
670 | ||
671 | kfree(notif_ack->buf); | |
672 | kfree(notif_ack); | |
673 | ||
674 | /* We start to config static boot parameters */ | |
675 | ret = iwm_config_boot_params(iwm); | |
676 | if (ret) { | |
677 | IWM_ERR(iwm, "Config boot parameters failed\n"); | |
678 | goto err_disable; | |
679 | } | |
680 | ||
681 | ret = iwm_read_mac(iwm, iwm_to_ndev(iwm)->dev_addr); | |
682 | if (ret) { | |
683 | IWM_ERR(iwm, "MAC reading failed\n"); | |
684 | goto err_disable; | |
685 | } | |
5b367378 JL |
686 | memcpy(iwm_to_ndev(iwm)->perm_addr, iwm_to_ndev(iwm)->dev_addr, |
687 | ETH_ALEN); | |
bb9f8692 ZY |
688 | |
689 | /* We can load the FWs */ | |
690 | ret = iwm_load_fw(iwm); | |
691 | if (ret) { | |
692 | IWM_ERR(iwm, "FW loading failed\n"); | |
693 | goto err_disable; | |
694 | } | |
695 | ||
902b6667 SO |
696 | ret = iwm_eeprom_fat_channels(iwm); |
697 | if (ret) { | |
698 | IWM_ERR(iwm, "Couldnt read HT channels EEPROM entries\n"); | |
699 | goto err_fw; | |
700 | } | |
701 | ||
0bed08de SO |
702 | /* |
703 | * Read our SKU capabilities. | |
704 | * If it's valid, we overwrite the wireless mode conf entry and the | |
705 | * current profile one. | |
706 | */ | |
707 | wireless_mode = iwm_eeprom_wireless_mode(iwm); | |
708 | if (wireless_mode) { | |
709 | iwm->conf.wireless_mode = wireless_mode; | |
710 | if (iwm->umac_profile) | |
711 | iwm->umac_profile->wireless_mode = | |
712 | iwm->conf.wireless_mode; | |
713 | } else | |
714 | IWM_ERR(iwm, "Wrong SKU capabilities: 0x%x\n", | |
715 | *((u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_SKU_CAP))); | |
716 | ||
5dc53163 SO |
717 | snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "L%s_U%s", |
718 | iwm->lmac_version, iwm->umac_version); | |
719 | ||
bb9f8692 ZY |
720 | /* We configure the UMAC and enable the wifi module */ |
721 | ret = iwm_send_umac_config(iwm, | |
722 | cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_CORE_EN) | | |
723 | cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_LINK_EN) | | |
724 | cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_MLME_EN)); | |
725 | if (ret) { | |
726 | IWM_ERR(iwm, "UMAC config failed\n"); | |
727 | goto err_fw; | |
728 | } | |
729 | ||
730 | ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS, | |
731 | IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT); | |
732 | if (ret) { | |
733 | IWM_ERR(iwm, "Didn't get a wifi core status notification\n"); | |
734 | goto err_fw; | |
735 | } | |
736 | ||
737 | if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN | | |
738 | UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) { | |
739 | IWM_DBG_BOOT(iwm, DBG, "Not all cores enabled:0x%x\n", | |
740 | iwm->core_enabled); | |
741 | ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS, | |
742 | IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT); | |
743 | if (ret) { | |
744 | IWM_ERR(iwm, "Didn't get a core status notification\n"); | |
745 | goto err_fw; | |
746 | } | |
747 | ||
748 | if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN | | |
749 | UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) { | |
750 | IWM_ERR(iwm, "Not all cores enabled: 0x%x\n", | |
751 | iwm->core_enabled); | |
752 | goto err_fw; | |
753 | } else { | |
754 | IWM_INFO(iwm, "All cores enabled\n"); | |
755 | } | |
756 | } | |
757 | ||
bb9f8692 ZY |
758 | ret = iwm_channels_init(iwm); |
759 | if (ret < 0) { | |
760 | IWM_ERR(iwm, "Couldn't init channels\n"); | |
35497164 | 761 | goto err_fw; |
bb9f8692 ZY |
762 | } |
763 | ||
764 | /* Set the READY bit to indicate interface is brought up successfully */ | |
765 | set_bit(IWM_STATUS_READY, &iwm->status); | |
766 | ||
767 | return 0; | |
768 | ||
bb9f8692 ZY |
769 | err_fw: |
770 | iwm_eeprom_exit(iwm); | |
771 | ||
772 | err_disable: | |
773 | ret = iwm_bus_disable(iwm); | |
774 | if (ret < 0) | |
775 | IWM_ERR(iwm, "Couldn't disable function\n"); | |
776 | ||
777 | return -EIO; | |
778 | } | |
779 | ||
68810c5d ZY |
780 | int iwm_up(struct iwm_priv *iwm) |
781 | { | |
782 | int ret; | |
783 | ||
784 | mutex_lock(&iwm->mutex); | |
785 | ret = __iwm_up(iwm); | |
786 | mutex_unlock(&iwm->mutex); | |
787 | ||
788 | return ret; | |
789 | } | |
790 | ||
31452420 | 791 | static int __iwm_down(struct iwm_priv *iwm) |
bb9f8692 ZY |
792 | { |
793 | int ret; | |
794 | ||
795 | /* The interface is already down */ | |
796 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
797 | return 0; | |
798 | ||
799 | if (iwm->scan_request) { | |
800 | cfg80211_scan_done(iwm->scan_request, true); | |
801 | iwm->scan_request = NULL; | |
802 | } | |
803 | ||
804 | clear_bit(IWM_STATUS_READY, &iwm->status); | |
805 | ||
806 | iwm_eeprom_exit(iwm); | |
bb9f8692 | 807 | iwm_bss_list_clean(iwm); |
35497164 SO |
808 | iwm_init_default_profile(iwm, iwm->umac_profile); |
809 | iwm->umac_profile_active = false; | |
13e0fe70 | 810 | iwm->default_key = -1; |
bb9f8692 ZY |
811 | iwm->core_enabled = 0; |
812 | ||
813 | ret = iwm_bus_disable(iwm); | |
814 | if (ret < 0) { | |
815 | IWM_ERR(iwm, "Couldn't disable function\n"); | |
816 | return ret; | |
817 | } | |
818 | ||
819 | return 0; | |
820 | } | |
68810c5d ZY |
821 | |
822 | int iwm_down(struct iwm_priv *iwm) | |
823 | { | |
824 | int ret; | |
825 | ||
826 | mutex_lock(&iwm->mutex); | |
827 | ret = __iwm_down(iwm); | |
828 | mutex_unlock(&iwm->mutex); | |
829 | ||
830 | return ret; | |
831 | } |