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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> | |
5a0e3ad6 | 44 | #include <linux/slab.h> |
bb9f8692 ZY |
45 | |
46 | #include "iwm.h" | |
47 | #include "debug.h" | |
48 | #include "bus.h" | |
49 | #include "umac.h" | |
50 | #include "commands.h" | |
51 | #include "hal.h" | |
52 | #include "fw.h" | |
53 | #include "rx.h" | |
54 | ||
55 | static struct iwm_conf def_iwm_conf = { | |
56 | ||
57 | .sdio_ior_timeout = 5000, | |
d04bd628 SO |
58 | .calib_map = BIT(CALIB_CFG_DC_IDX) | |
59 | BIT(CALIB_CFG_LO_IDX) | | |
60 | BIT(CALIB_CFG_TX_IQ_IDX) | | |
61 | BIT(CALIB_CFG_RX_IQ_IDX) | | |
62 | BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD), | |
63 | .expected_calib_map = BIT(PHY_CALIBRATE_DC_CMD) | | |
bb9f8692 ZY |
64 | BIT(PHY_CALIBRATE_LO_CMD) | |
65 | BIT(PHY_CALIBRATE_TX_IQ_CMD) | | |
66 | BIT(PHY_CALIBRATE_RX_IQ_CMD) | | |
67 | BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD), | |
e85498b2 SO |
68 | .ct_kill_entry = 110, |
69 | .ct_kill_exit = 110, | |
bb9f8692 ZY |
70 | .reset_on_fatal_err = 1, |
71 | .auto_connect = 1, | |
bb9f8692 ZY |
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 | |
86 | /* IBSS */ | |
87 | .ibss_band = UMAC_BAND_2GHZ, | |
88 | .ibss_channel = 1, | |
89 | ||
90 | .mac_addr = {0x00, 0x02, 0xb3, 0x01, 0x02, 0x03}, | |
91 | }; | |
92 | ||
93 | static int modparam_reset; | |
94 | module_param_named(reset, modparam_reset, bool, 0644); | |
95 | MODULE_PARM_DESC(reset, "reset on firmware errors (default 0 [not reset])"); | |
96 | ||
159bcfeb SO |
97 | static int modparam_wimax_enable = 1; |
98 | module_param_named(wimax_enable, modparam_wimax_enable, bool, 0644); | |
99 | MODULE_PARM_DESC(wimax_enable, "Enable wimax core (default 1 [wimax enabled])"); | |
100 | ||
bb9f8692 ZY |
101 | int iwm_mode_to_nl80211_iftype(int mode) |
102 | { | |
103 | switch (mode) { | |
104 | case UMAC_MODE_BSS: | |
105 | return NL80211_IFTYPE_STATION; | |
106 | case UMAC_MODE_IBSS: | |
107 | return NL80211_IFTYPE_ADHOC; | |
108 | default: | |
109 | return NL80211_IFTYPE_UNSPECIFIED; | |
110 | } | |
111 | ||
112 | return 0; | |
113 | } | |
114 | ||
115 | static void iwm_statistics_request(struct work_struct *work) | |
116 | { | |
117 | struct iwm_priv *iwm = | |
118 | container_of(work, struct iwm_priv, stats_request.work); | |
119 | ||
120 | iwm_send_umac_stats_req(iwm, 0); | |
121 | } | |
122 | ||
c7436273 ZY |
123 | static void iwm_disconnect_work(struct work_struct *work) |
124 | { | |
125 | struct iwm_priv *iwm = | |
126 | container_of(work, struct iwm_priv, disconnect.work); | |
127 | ||
128 | if (iwm->umac_profile_active) | |
129 | iwm_invalidate_mlme_profile(iwm); | |
130 | ||
131 | clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status); | |
132 | iwm->umac_profile_active = 0; | |
133 | memset(iwm->bssid, 0, ETH_ALEN); | |
134 | iwm->channel = 0; | |
135 | ||
136 | iwm_link_off(iwm); | |
137 | ||
138 | wake_up_interruptible(&iwm->mlme_queue); | |
139 | ||
140 | cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0, GFP_KERNEL); | |
141 | } | |
142 | ||
e85498b2 SO |
143 | static void iwm_ct_kill_work(struct work_struct *work) |
144 | { | |
145 | struct iwm_priv *iwm = | |
146 | container_of(work, struct iwm_priv, ct_kill_delay.work); | |
147 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
148 | ||
149 | IWM_INFO(iwm, "CT kill delay timeout\n"); | |
150 | ||
151 | wiphy_rfkill_set_hw_state(wiphy, false); | |
152 | } | |
153 | ||
31452420 ZY |
154 | static int __iwm_up(struct iwm_priv *iwm); |
155 | static int __iwm_down(struct iwm_priv *iwm); | |
68810c5d | 156 | |
bb9f8692 ZY |
157 | static void iwm_reset_worker(struct work_struct *work) |
158 | { | |
159 | struct iwm_priv *iwm; | |
160 | struct iwm_umac_profile *profile = NULL; | |
161 | int uninitialized_var(ret), retry = 0; | |
162 | ||
163 | iwm = container_of(work, struct iwm_priv, reset_worker); | |
164 | ||
68810c5d ZY |
165 | /* |
166 | * XXX: The iwm->mutex is introduced purely for this reset work, | |
167 | * because the other users for iwm_up and iwm_down are only netdev | |
168 | * ndo_open and ndo_stop which are already protected by rtnl. | |
169 | * Please remove iwm->mutex together if iwm_reset_worker() is not | |
170 | * required in the future. | |
171 | */ | |
172 | if (!mutex_trylock(&iwm->mutex)) { | |
173 | IWM_WARN(iwm, "We are in the middle of interface bringing " | |
174 | "UP/DOWN. Skip driver resetting.\n"); | |
175 | return; | |
176 | } | |
177 | ||
bb9f8692 ZY |
178 | if (iwm->umac_profile_active) { |
179 | profile = kmalloc(sizeof(struct iwm_umac_profile), GFP_KERNEL); | |
180 | if (profile) | |
181 | memcpy(profile, iwm->umac_profile, sizeof(*profile)); | |
182 | else | |
183 | IWM_ERR(iwm, "Couldn't alloc memory for profile\n"); | |
184 | } | |
185 | ||
68810c5d | 186 | __iwm_down(iwm); |
bb9f8692 ZY |
187 | |
188 | while (retry++ < 3) { | |
68810c5d | 189 | ret = __iwm_up(iwm); |
bb9f8692 ZY |
190 | if (!ret) |
191 | break; | |
192 | ||
193 | schedule_timeout_uninterruptible(10 * HZ); | |
194 | } | |
195 | ||
196 | if (ret) { | |
197 | IWM_WARN(iwm, "iwm_up() failed: %d\n", ret); | |
198 | ||
199 | kfree(profile); | |
68810c5d | 200 | goto out; |
bb9f8692 ZY |
201 | } |
202 | ||
203 | if (profile) { | |
204 | IWM_DBG_MLME(iwm, DBG, "Resend UMAC profile\n"); | |
205 | memcpy(iwm->umac_profile, profile, sizeof(*profile)); | |
206 | iwm_send_mlme_profile(iwm); | |
207 | kfree(profile); | |
d210176e SO |
208 | } else |
209 | clear_bit(IWM_STATUS_RESETTING, &iwm->status); | |
68810c5d ZY |
210 | |
211 | out: | |
212 | mutex_unlock(&iwm->mutex); | |
bb9f8692 ZY |
213 | } |
214 | ||
9829e1b5 SO |
215 | static void iwm_auth_retry_worker(struct work_struct *work) |
216 | { | |
217 | struct iwm_priv *iwm; | |
218 | int i, ret; | |
219 | ||
220 | iwm = container_of(work, struct iwm_priv, auth_retry_worker); | |
221 | if (iwm->umac_profile_active) { | |
222 | ret = iwm_invalidate_mlme_profile(iwm); | |
223 | if (ret < 0) | |
224 | return; | |
225 | } | |
226 | ||
227 | iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
228 | ||
229 | ret = iwm_send_mlme_profile(iwm); | |
230 | if (ret < 0) | |
231 | return; | |
232 | ||
233 | for (i = 0; i < IWM_NUM_KEYS; i++) | |
234 | if (iwm->keys[i].key_len) | |
235 | iwm_set_key(iwm, 0, &iwm->keys[i]); | |
236 | ||
237 | iwm_set_tx_key(iwm, iwm->default_key); | |
238 | } | |
239 | ||
240 | ||
241 | ||
bb9f8692 ZY |
242 | static void iwm_watchdog(unsigned long data) |
243 | { | |
244 | struct iwm_priv *iwm = (struct iwm_priv *)data; | |
245 | ||
246 | IWM_WARN(iwm, "Watchdog expired: UMAC stalls!\n"); | |
247 | ||
248 | if (modparam_reset) | |
d210176e | 249 | iwm_resetting(iwm); |
bb9f8692 ZY |
250 | } |
251 | ||
252 | int iwm_priv_init(struct iwm_priv *iwm) | |
253 | { | |
a7af530d | 254 | int i, j; |
bb9f8692 ZY |
255 | char name[32]; |
256 | ||
257 | iwm->status = 0; | |
258 | INIT_LIST_HEAD(&iwm->pending_notif); | |
259 | init_waitqueue_head(&iwm->notif_queue); | |
260 | init_waitqueue_head(&iwm->nonwifi_queue); | |
a70742f1 | 261 | init_waitqueue_head(&iwm->wifi_ntfy_queue); |
bb9f8692 ZY |
262 | init_waitqueue_head(&iwm->mlme_queue); |
263 | memcpy(&iwm->conf, &def_iwm_conf, sizeof(struct iwm_conf)); | |
264 | spin_lock_init(&iwm->tx_credit.lock); | |
265 | INIT_LIST_HEAD(&iwm->wifi_pending_cmd); | |
266 | INIT_LIST_HEAD(&iwm->nonwifi_pending_cmd); | |
267 | iwm->wifi_seq_num = UMAC_WIFI_SEQ_NUM_BASE; | |
268 | iwm->nonwifi_seq_num = UMAC_NONWIFI_SEQ_NUM_BASE; | |
269 | spin_lock_init(&iwm->cmd_lock); | |
270 | iwm->scan_id = 1; | |
271 | INIT_DELAYED_WORK(&iwm->stats_request, iwm_statistics_request); | |
c7436273 | 272 | INIT_DELAYED_WORK(&iwm->disconnect, iwm_disconnect_work); |
e85498b2 | 273 | INIT_DELAYED_WORK(&iwm->ct_kill_delay, iwm_ct_kill_work); |
bb9f8692 | 274 | INIT_WORK(&iwm->reset_worker, iwm_reset_worker); |
9829e1b5 | 275 | INIT_WORK(&iwm->auth_retry_worker, iwm_auth_retry_worker); |
bb9f8692 ZY |
276 | INIT_LIST_HEAD(&iwm->bss_list); |
277 | ||
278 | skb_queue_head_init(&iwm->rx_list); | |
279 | INIT_LIST_HEAD(&iwm->rx_tickets); | |
c03c6aef ZY |
280 | spin_lock_init(&iwm->ticket_lock); |
281 | for (i = 0; i < IWM_RX_ID_HASH; i++) { | |
bb9f8692 | 282 | INIT_LIST_HEAD(&iwm->rx_packets[i]); |
c03c6aef ZY |
283 | spin_lock_init(&iwm->packet_lock[i]); |
284 | } | |
bb9f8692 ZY |
285 | |
286 | INIT_WORK(&iwm->rx_worker, iwm_rx_worker); | |
287 | ||
288 | iwm->rx_wq = create_singlethread_workqueue(KBUILD_MODNAME "_rx"); | |
289 | if (!iwm->rx_wq) | |
290 | return -EAGAIN; | |
291 | ||
292 | for (i = 0; i < IWM_TX_QUEUES; i++) { | |
293 | INIT_WORK(&iwm->txq[i].worker, iwm_tx_worker); | |
294 | snprintf(name, 32, KBUILD_MODNAME "_tx_%d", i); | |
295 | iwm->txq[i].id = i; | |
296 | iwm->txq[i].wq = create_singlethread_workqueue(name); | |
297 | if (!iwm->txq[i].wq) | |
298 | return -EAGAIN; | |
299 | ||
300 | skb_queue_head_init(&iwm->txq[i].queue); | |
a7af530d SO |
301 | skb_queue_head_init(&iwm->txq[i].stopped_queue); |
302 | spin_lock_init(&iwm->txq[i].lock); | |
bb9f8692 ZY |
303 | } |
304 | ||
305 | for (i = 0; i < IWM_NUM_KEYS; i++) | |
306 | memset(&iwm->keys[i], 0, sizeof(struct iwm_key)); | |
307 | ||
13e0fe70 | 308 | iwm->default_key = -1; |
bb9f8692 | 309 | |
a7af530d SO |
310 | for (i = 0; i < IWM_STA_TABLE_NUM; i++) |
311 | for (j = 0; j < IWM_UMAC_TID_NR; j++) { | |
312 | mutex_init(&iwm->sta_table[i].tid_info[j].mutex); | |
313 | iwm->sta_table[i].tid_info[j].stopped = false; | |
314 | } | |
315 | ||
bb9f8692 ZY |
316 | init_timer(&iwm->watchdog); |
317 | iwm->watchdog.function = iwm_watchdog; | |
318 | iwm->watchdog.data = (unsigned long)iwm; | |
68810c5d | 319 | mutex_init(&iwm->mutex); |
bb9f8692 | 320 | |
04e715cd SO |
321 | iwm->last_fw_err = kzalloc(sizeof(struct iwm_fw_error_hdr), |
322 | GFP_KERNEL); | |
323 | if (iwm->last_fw_err == NULL) | |
324 | return -ENOMEM; | |
325 | ||
bb9f8692 ZY |
326 | return 0; |
327 | } | |
328 | ||
8d96e796 ZY |
329 | void iwm_priv_deinit(struct iwm_priv *iwm) |
330 | { | |
331 | int i; | |
332 | ||
333 | for (i = 0; i < IWM_TX_QUEUES; i++) | |
334 | destroy_workqueue(iwm->txq[i].wq); | |
335 | ||
336 | destroy_workqueue(iwm->rx_wq); | |
04e715cd | 337 | kfree(iwm->last_fw_err); |
8d96e796 ZY |
338 | } |
339 | ||
bb9f8692 ZY |
340 | /* |
341 | * We reset all the structures, and we reset the UMAC. | |
342 | * After calling this routine, you're expected to reload | |
343 | * the firmware. | |
344 | */ | |
345 | void iwm_reset(struct iwm_priv *iwm) | |
346 | { | |
347 | struct iwm_notif *notif, *next; | |
348 | ||
349 | if (test_bit(IWM_STATUS_READY, &iwm->status)) | |
350 | iwm_target_reset(iwm); | |
351 | ||
d210176e SO |
352 | if (test_bit(IWM_STATUS_RESETTING, &iwm->status)) { |
353 | iwm->status = 0; | |
354 | set_bit(IWM_STATUS_RESETTING, &iwm->status); | |
355 | } else | |
356 | iwm->status = 0; | |
bb9f8692 ZY |
357 | iwm->scan_id = 1; |
358 | ||
359 | list_for_each_entry_safe(notif, next, &iwm->pending_notif, pending) { | |
360 | list_del(¬if->pending); | |
361 | kfree(notif->buf); | |
362 | kfree(notif); | |
363 | } | |
364 | ||
365 | iwm_cmd_flush(iwm); | |
366 | ||
367 | flush_workqueue(iwm->rx_wq); | |
368 | ||
369 | iwm_link_off(iwm); | |
370 | } | |
371 | ||
d210176e SO |
372 | void iwm_resetting(struct iwm_priv *iwm) |
373 | { | |
374 | set_bit(IWM_STATUS_RESETTING, &iwm->status); | |
375 | ||
376 | schedule_work(&iwm->reset_worker); | |
377 | } | |
378 | ||
bb9f8692 ZY |
379 | /* |
380 | * Notification code: | |
381 | * | |
382 | * We're faced with the following issue: Any host command can | |
383 | * have an answer or not, and if there's an answer to expect, | |
384 | * it can be treated synchronously or asynchronously. | |
385 | * To work around the synchronous answer case, we implemented | |
386 | * our notification mechanism. | |
387 | * When a code path needs to wait for a command response | |
388 | * synchronously, it calls notif_handle(), which waits for the | |
389 | * right notification to show up, and then process it. Before | |
390 | * starting to wait, it registered as a waiter for this specific | |
391 | * answer (by toggling a bit in on of the handler_map), so that | |
392 | * the rx code knows that it needs to send a notification to the | |
393 | * waiting processes. It does so by calling iwm_notif_send(), | |
394 | * which adds the notification to the pending notifications list, | |
395 | * and then wakes the waiting processes up. | |
396 | */ | |
397 | int iwm_notif_send(struct iwm_priv *iwm, struct iwm_wifi_cmd *cmd, | |
398 | u8 cmd_id, u8 source, u8 *buf, unsigned long buf_size) | |
399 | { | |
400 | struct iwm_notif *notif; | |
401 | ||
402 | notif = kzalloc(sizeof(struct iwm_notif), GFP_KERNEL); | |
403 | if (!notif) { | |
404 | IWM_ERR(iwm, "Couldn't alloc memory for notification\n"); | |
405 | return -ENOMEM; | |
406 | } | |
407 | ||
408 | INIT_LIST_HEAD(¬if->pending); | |
409 | notif->cmd = cmd; | |
410 | notif->cmd_id = cmd_id; | |
411 | notif->src = source; | |
412 | notif->buf = kzalloc(buf_size, GFP_KERNEL); | |
413 | if (!notif->buf) { | |
414 | IWM_ERR(iwm, "Couldn't alloc notification buffer\n"); | |
415 | kfree(notif); | |
416 | return -ENOMEM; | |
417 | } | |
418 | notif->buf_size = buf_size; | |
419 | memcpy(notif->buf, buf, buf_size); | |
420 | list_add_tail(¬if->pending, &iwm->pending_notif); | |
421 | ||
422 | wake_up_interruptible(&iwm->notif_queue); | |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
427 | static struct iwm_notif *iwm_notif_find(struct iwm_priv *iwm, u32 cmd, | |
428 | u8 source) | |
429 | { | |
04d1c227 | 430 | struct iwm_notif *notif; |
bb9f8692 | 431 | |
04d1c227 | 432 | list_for_each_entry(notif, &iwm->pending_notif, pending) { |
bb9f8692 ZY |
433 | if ((notif->cmd_id == cmd) && (notif->src == source)) { |
434 | list_del(¬if->pending); | |
435 | return notif; | |
436 | } | |
437 | } | |
438 | ||
439 | return NULL; | |
440 | } | |
441 | ||
442 | static struct iwm_notif *iwm_notif_wait(struct iwm_priv *iwm, u32 cmd, | |
443 | u8 source, long timeout) | |
444 | { | |
445 | int ret; | |
446 | struct iwm_notif *notif; | |
447 | unsigned long *map = NULL; | |
448 | ||
449 | switch (source) { | |
450 | case IWM_SRC_LMAC: | |
451 | map = &iwm->lmac_handler_map[0]; | |
452 | break; | |
453 | case IWM_SRC_UMAC: | |
454 | map = &iwm->umac_handler_map[0]; | |
455 | break; | |
456 | case IWM_SRC_UDMA: | |
457 | map = &iwm->udma_handler_map[0]; | |
458 | break; | |
459 | } | |
460 | ||
461 | set_bit(cmd, map); | |
462 | ||
463 | ret = wait_event_interruptible_timeout(iwm->notif_queue, | |
464 | ((notif = iwm_notif_find(iwm, cmd, source)) != NULL), | |
465 | timeout); | |
466 | clear_bit(cmd, map); | |
467 | ||
468 | if (!ret) | |
469 | return NULL; | |
470 | ||
471 | return notif; | |
472 | } | |
473 | ||
474 | int iwm_notif_handle(struct iwm_priv *iwm, u32 cmd, u8 source, long timeout) | |
475 | { | |
476 | int ret; | |
477 | struct iwm_notif *notif; | |
478 | ||
479 | notif = iwm_notif_wait(iwm, cmd, source, timeout); | |
480 | if (!notif) | |
481 | return -ETIME; | |
482 | ||
483 | ret = iwm_rx_handle_resp(iwm, notif->buf, notif->buf_size, notif->cmd); | |
484 | kfree(notif->buf); | |
485 | kfree(notif); | |
486 | ||
487 | return ret; | |
488 | } | |
489 | ||
490 | static int iwm_config_boot_params(struct iwm_priv *iwm) | |
491 | { | |
492 | struct iwm_udma_nonwifi_cmd target_cmd; | |
493 | int ret; | |
494 | ||
495 | /* check Wimax is off and config debug monitor */ | |
159bcfeb | 496 | if (!modparam_wimax_enable) { |
bb9f8692 ZY |
497 | u32 data1 = 0x1f; |
498 | u32 addr1 = 0x606BE258; | |
499 | ||
500 | u32 data2_set = 0x0; | |
501 | u32 data2_clr = 0x1; | |
502 | u32 addr2 = 0x606BE100; | |
503 | ||
504 | u32 data3 = 0x1; | |
505 | u32 addr3 = 0x606BEC00; | |
506 | ||
507 | target_cmd.resp = 0; | |
508 | target_cmd.handle_by_hw = 0; | |
509 | target_cmd.eop = 1; | |
510 | ||
511 | target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE; | |
512 | target_cmd.addr = cpu_to_le32(addr1); | |
513 | target_cmd.op1_sz = cpu_to_le32(sizeof(u32)); | |
514 | target_cmd.op2 = 0; | |
515 | ||
516 | ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1); | |
517 | if (ret < 0) { | |
518 | IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n"); | |
519 | return ret; | |
520 | } | |
521 | ||
522 | target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ_MODIFY_WRITE; | |
523 | target_cmd.addr = cpu_to_le32(addr2); | |
524 | target_cmd.op1_sz = cpu_to_le32(data2_set); | |
525 | target_cmd.op2 = cpu_to_le32(data2_clr); | |
526 | ||
527 | ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1); | |
528 | if (ret < 0) { | |
529 | IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n"); | |
530 | return ret; | |
531 | } | |
532 | ||
533 | target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE; | |
534 | target_cmd.addr = cpu_to_le32(addr3); | |
535 | target_cmd.op1_sz = cpu_to_le32(sizeof(u32)); | |
536 | target_cmd.op2 = 0; | |
537 | ||
538 | ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data3); | |
539 | if (ret < 0) { | |
540 | IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n"); | |
541 | return ret; | |
542 | } | |
543 | } | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | void iwm_init_default_profile(struct iwm_priv *iwm, | |
549 | struct iwm_umac_profile *profile) | |
550 | { | |
551 | memset(profile, 0, sizeof(struct iwm_umac_profile)); | |
552 | ||
553 | profile->sec.auth_type = UMAC_AUTH_TYPE_OPEN; | |
554 | profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE; | |
555 | profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_NONE; | |
556 | profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_NONE; | |
557 | ||
558 | if (iwm->conf.enable_qos) | |
559 | profile->flags |= cpu_to_le16(UMAC_PROFILE_QOS_ALLOWED); | |
560 | ||
561 | profile->wireless_mode = iwm->conf.wireless_mode; | |
562 | profile->mode = cpu_to_le32(iwm->conf.mode); | |
563 | ||
564 | profile->ibss.atim = 0; | |
565 | profile->ibss.beacon_interval = 100; | |
566 | profile->ibss.join_only = 0; | |
567 | profile->ibss.band = iwm->conf.ibss_band; | |
568 | profile->ibss.channel = iwm->conf.ibss_channel; | |
569 | } | |
570 | ||
571 | void iwm_link_on(struct iwm_priv *iwm) | |
572 | { | |
573 | netif_carrier_on(iwm_to_ndev(iwm)); | |
574 | netif_tx_wake_all_queues(iwm_to_ndev(iwm)); | |
575 | ||
576 | iwm_send_umac_stats_req(iwm, 0); | |
577 | } | |
578 | ||
579 | void iwm_link_off(struct iwm_priv *iwm) | |
580 | { | |
581 | struct iw_statistics *wstats = &iwm->wstats; | |
582 | int i; | |
583 | ||
584 | netif_tx_stop_all_queues(iwm_to_ndev(iwm)); | |
585 | netif_carrier_off(iwm_to_ndev(iwm)); | |
586 | ||
587 | for (i = 0; i < IWM_TX_QUEUES; i++) { | |
588 | skb_queue_purge(&iwm->txq[i].queue); | |
a7af530d | 589 | skb_queue_purge(&iwm->txq[i].stopped_queue); |
bb9f8692 ZY |
590 | |
591 | iwm->txq[i].concat_count = 0; | |
592 | iwm->txq[i].concat_ptr = iwm->txq[i].concat_buf; | |
593 | ||
594 | flush_workqueue(iwm->txq[i].wq); | |
595 | } | |
596 | ||
597 | iwm_rx_free(iwm); | |
598 | ||
68810c5d | 599 | cancel_delayed_work_sync(&iwm->stats_request); |
bb9f8692 ZY |
600 | memset(wstats, 0, sizeof(struct iw_statistics)); |
601 | wstats->qual.updated = IW_QUAL_ALL_INVALID; | |
602 | ||
b68518fc ZY |
603 | kfree(iwm->req_ie); |
604 | iwm->req_ie = NULL; | |
605 | iwm->req_ie_len = 0; | |
606 | kfree(iwm->resp_ie); | |
607 | iwm->resp_ie = NULL; | |
608 | iwm->resp_ie_len = 0; | |
609 | ||
bb9f8692 ZY |
610 | del_timer_sync(&iwm->watchdog); |
611 | } | |
612 | ||
613 | static void iwm_bss_list_clean(struct iwm_priv *iwm) | |
614 | { | |
615 | struct iwm_bss_info *bss, *next; | |
616 | ||
617 | list_for_each_entry_safe(bss, next, &iwm->bss_list, node) { | |
618 | list_del(&bss->node); | |
619 | kfree(bss->bss); | |
620 | kfree(bss); | |
621 | } | |
622 | } | |
623 | ||
624 | static int iwm_channels_init(struct iwm_priv *iwm) | |
625 | { | |
626 | int ret; | |
627 | ||
bb9f8692 ZY |
628 | ret = iwm_send_umac_channel_list(iwm); |
629 | if (ret) { | |
630 | IWM_ERR(iwm, "Send channel list failed\n"); | |
631 | return ret; | |
632 | } | |
633 | ||
634 | ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST, | |
635 | IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT); | |
636 | if (ret) { | |
637 | IWM_ERR(iwm, "Didn't get a channel list notification\n"); | |
638 | return ret; | |
639 | } | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
31452420 | 644 | static int __iwm_up(struct iwm_priv *iwm) |
bb9f8692 ZY |
645 | { |
646 | int ret; | |
647 | struct iwm_notif *notif_reboot, *notif_ack = NULL; | |
5dc53163 | 648 | struct wiphy *wiphy = iwm_to_wiphy(iwm); |
0bed08de | 649 | u32 wireless_mode; |
bb9f8692 ZY |
650 | |
651 | ret = iwm_bus_enable(iwm); | |
652 | if (ret) { | |
653 | IWM_ERR(iwm, "Couldn't enable function\n"); | |
654 | return ret; | |
655 | } | |
656 | ||
657 | iwm_rx_setup_handlers(iwm); | |
658 | ||
659 | /* Wait for initial BARKER_REBOOT from hardware */ | |
660 | notif_reboot = iwm_notif_wait(iwm, IWM_BARKER_REBOOT_NOTIFICATION, | |
661 | IWM_SRC_UDMA, 2 * HZ); | |
662 | if (!notif_reboot) { | |
663 | IWM_ERR(iwm, "Wait for REBOOT_BARKER timeout\n"); | |
664 | goto err_disable; | |
665 | } | |
666 | ||
667 | /* We send the barker back */ | |
668 | ret = iwm_bus_send_chunk(iwm, notif_reboot->buf, 16); | |
669 | if (ret) { | |
670 | IWM_ERR(iwm, "REBOOT barker response failed\n"); | |
671 | kfree(notif_reboot); | |
672 | goto err_disable; | |
673 | } | |
674 | ||
675 | kfree(notif_reboot->buf); | |
676 | kfree(notif_reboot); | |
677 | ||
678 | /* Wait for ACK_BARKER from hardware */ | |
679 | notif_ack = iwm_notif_wait(iwm, IWM_ACK_BARKER_NOTIFICATION, | |
680 | IWM_SRC_UDMA, 2 * HZ); | |
681 | if (!notif_ack) { | |
682 | IWM_ERR(iwm, "Wait for ACK_BARKER timeout\n"); | |
683 | goto err_disable; | |
684 | } | |
685 | ||
686 | kfree(notif_ack->buf); | |
687 | kfree(notif_ack); | |
688 | ||
689 | /* We start to config static boot parameters */ | |
690 | ret = iwm_config_boot_params(iwm); | |
691 | if (ret) { | |
692 | IWM_ERR(iwm, "Config boot parameters failed\n"); | |
693 | goto err_disable; | |
694 | } | |
695 | ||
696 | ret = iwm_read_mac(iwm, iwm_to_ndev(iwm)->dev_addr); | |
697 | if (ret) { | |
698 | IWM_ERR(iwm, "MAC reading failed\n"); | |
699 | goto err_disable; | |
700 | } | |
5b367378 JL |
701 | memcpy(iwm_to_ndev(iwm)->perm_addr, iwm_to_ndev(iwm)->dev_addr, |
702 | ETH_ALEN); | |
bb9f8692 ZY |
703 | |
704 | /* We can load the FWs */ | |
705 | ret = iwm_load_fw(iwm); | |
706 | if (ret) { | |
707 | IWM_ERR(iwm, "FW loading failed\n"); | |
708 | goto err_disable; | |
709 | } | |
710 | ||
902b6667 SO |
711 | ret = iwm_eeprom_fat_channels(iwm); |
712 | if (ret) { | |
713 | IWM_ERR(iwm, "Couldnt read HT channels EEPROM entries\n"); | |
714 | goto err_fw; | |
715 | } | |
716 | ||
0bed08de SO |
717 | /* |
718 | * Read our SKU capabilities. | |
2351178c ZY |
719 | * If it's valid, we AND the configured wireless mode with the |
720 | * device EEPROM value as the current profile wireless mode. | |
0bed08de SO |
721 | */ |
722 | wireless_mode = iwm_eeprom_wireless_mode(iwm); | |
723 | if (wireless_mode) { | |
2351178c | 724 | iwm->conf.wireless_mode &= wireless_mode; |
0bed08de SO |
725 | if (iwm->umac_profile) |
726 | iwm->umac_profile->wireless_mode = | |
727 | iwm->conf.wireless_mode; | |
728 | } else | |
729 | IWM_ERR(iwm, "Wrong SKU capabilities: 0x%x\n", | |
730 | *((u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_SKU_CAP))); | |
731 | ||
5dc53163 SO |
732 | snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "L%s_U%s", |
733 | iwm->lmac_version, iwm->umac_version); | |
734 | ||
bb9f8692 ZY |
735 | /* We configure the UMAC and enable the wifi module */ |
736 | ret = iwm_send_umac_config(iwm, | |
737 | cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_CORE_EN) | | |
738 | cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_LINK_EN) | | |
739 | cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_MLME_EN)); | |
740 | if (ret) { | |
741 | IWM_ERR(iwm, "UMAC config failed\n"); | |
742 | goto err_fw; | |
743 | } | |
744 | ||
745 | ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS, | |
746 | IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT); | |
747 | if (ret) { | |
748 | IWM_ERR(iwm, "Didn't get a wifi core status notification\n"); | |
749 | goto err_fw; | |
750 | } | |
751 | ||
752 | if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN | | |
753 | UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) { | |
754 | IWM_DBG_BOOT(iwm, DBG, "Not all cores enabled:0x%x\n", | |
755 | iwm->core_enabled); | |
756 | ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS, | |
757 | IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT); | |
758 | if (ret) { | |
759 | IWM_ERR(iwm, "Didn't get a core status notification\n"); | |
760 | goto err_fw; | |
761 | } | |
762 | ||
763 | if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN | | |
764 | UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) { | |
765 | IWM_ERR(iwm, "Not all cores enabled: 0x%x\n", | |
766 | iwm->core_enabled); | |
767 | goto err_fw; | |
768 | } else { | |
769 | IWM_INFO(iwm, "All cores enabled\n"); | |
770 | } | |
771 | } | |
772 | ||
bb9f8692 ZY |
773 | ret = iwm_channels_init(iwm); |
774 | if (ret < 0) { | |
775 | IWM_ERR(iwm, "Couldn't init channels\n"); | |
35497164 | 776 | goto err_fw; |
bb9f8692 ZY |
777 | } |
778 | ||
779 | /* Set the READY bit to indicate interface is brought up successfully */ | |
780 | set_bit(IWM_STATUS_READY, &iwm->status); | |
781 | ||
782 | return 0; | |
783 | ||
bb9f8692 ZY |
784 | err_fw: |
785 | iwm_eeprom_exit(iwm); | |
786 | ||
787 | err_disable: | |
788 | ret = iwm_bus_disable(iwm); | |
789 | if (ret < 0) | |
790 | IWM_ERR(iwm, "Couldn't disable function\n"); | |
791 | ||
792 | return -EIO; | |
793 | } | |
794 | ||
68810c5d ZY |
795 | int iwm_up(struct iwm_priv *iwm) |
796 | { | |
797 | int ret; | |
798 | ||
799 | mutex_lock(&iwm->mutex); | |
800 | ret = __iwm_up(iwm); | |
801 | mutex_unlock(&iwm->mutex); | |
802 | ||
803 | return ret; | |
804 | } | |
805 | ||
31452420 | 806 | static int __iwm_down(struct iwm_priv *iwm) |
bb9f8692 ZY |
807 | { |
808 | int ret; | |
809 | ||
810 | /* The interface is already down */ | |
811 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
812 | return 0; | |
813 | ||
814 | if (iwm->scan_request) { | |
815 | cfg80211_scan_done(iwm->scan_request, true); | |
816 | iwm->scan_request = NULL; | |
817 | } | |
818 | ||
819 | clear_bit(IWM_STATUS_READY, &iwm->status); | |
820 | ||
821 | iwm_eeprom_exit(iwm); | |
bb9f8692 | 822 | iwm_bss_list_clean(iwm); |
35497164 SO |
823 | iwm_init_default_profile(iwm, iwm->umac_profile); |
824 | iwm->umac_profile_active = false; | |
13e0fe70 | 825 | iwm->default_key = -1; |
bb9f8692 ZY |
826 | iwm->core_enabled = 0; |
827 | ||
828 | ret = iwm_bus_disable(iwm); | |
829 | if (ret < 0) { | |
830 | IWM_ERR(iwm, "Couldn't disable function\n"); | |
831 | return ret; | |
832 | } | |
833 | ||
834 | return 0; | |
835 | } | |
68810c5d ZY |
836 | |
837 | int iwm_down(struct iwm_priv *iwm) | |
838 | { | |
839 | int ret; | |
840 | ||
841 | mutex_lock(&iwm->mutex); | |
842 | ret = __iwm_down(iwm); | |
843 | mutex_unlock(&iwm->mutex); | |
844 | ||
845 | return ret; | |
846 | } |