Commit | Line | Data |
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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
901069c7 | 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
b481de9c ZY |
29 | #include <linux/kernel.h> |
30 | #include <linux/module.h> | |
b481de9c | 31 | #include <linux/init.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
b481de9c ZY |
33 | #include <linux/dma-mapping.h> |
34 | #include <linux/delay.h> | |
d43c36dc | 35 | #include <linux/sched.h> |
b481de9c ZY |
36 | #include <linux/skbuff.h> |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
b481de9c ZY |
43 | #include <net/mac80211.h> |
44 | ||
45 | #include <asm/div64.h> | |
46 | ||
6bc913bd | 47 | #include "iwl-eeprom.h" |
3e0d4cb1 | 48 | #include "iwl-dev.h" |
fee1247a | 49 | #include "iwl-core.h" |
3395f6e9 | 50 | #include "iwl-io.h" |
b481de9c | 51 | #include "iwl-helpers.h" |
6974e363 | 52 | #include "iwl-sta.h" |
0de76736 | 53 | #include "iwl-agn-calib.h" |
a1175124 | 54 | #include "iwl-agn.h" |
d5934110 | 55 | #include "iwl-bus.h" |
c85eb619 | 56 | #include "iwl-trans.h" |
416e1438 | 57 | |
b481de9c ZY |
58 | /****************************************************************************** |
59 | * | |
60 | * module boiler plate | |
61 | * | |
62 | ******************************************************************************/ | |
63 | ||
b481de9c ZY |
64 | /* |
65 | * module name, copyright, version, etc. | |
b481de9c | 66 | */ |
d783b061 | 67 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
b481de9c | 68 | |
0a6857e7 | 69 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
70 | #define VD "d" |
71 | #else | |
72 | #define VD | |
73 | #endif | |
74 | ||
81963d68 | 75 | #define DRV_VERSION IWLWIFI_VERSION VD |
b481de9c | 76 | |
b481de9c ZY |
77 | |
78 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
79 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 80 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c ZY |
81 | MODULE_LICENSE("GPL"); |
82 | ||
bee008b7 | 83 | static int iwlagn_ant_coupling; |
f37837c9 | 84 | static bool iwlagn_bt_ch_announce = 1; |
bee008b7 | 85 | |
5b9f8cd3 | 86 | void iwl_update_chain_flags(struct iwl_priv *priv) |
5da4b55f | 87 | { |
246ed355 | 88 | struct iwl_rxon_context *ctx; |
5da4b55f | 89 | |
e3f10cea WYG |
90 | for_each_context(priv, ctx) { |
91 | iwlagn_set_rxon_chain(priv, ctx); | |
92 | if (ctx->active.rx_chain != ctx->staging.rx_chain) | |
93 | iwlagn_commit_rxon(priv, ctx); | |
246ed355 | 94 | } |
5da4b55f MA |
95 | } |
96 | ||
47ff65c4 DH |
97 | /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
98 | static void iwl_set_beacon_tim(struct iwl_priv *priv, | |
77834543 JB |
99 | struct iwl_tx_beacon_cmd *tx_beacon_cmd, |
100 | u8 *beacon, u32 frame_size) | |
47ff65c4 DH |
101 | { |
102 | u16 tim_idx; | |
103 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; | |
104 | ||
105 | /* | |
106 | * The index is relative to frame start but we start looking at the | |
107 | * variable-length part of the beacon. | |
108 | */ | |
109 | tim_idx = mgmt->u.beacon.variable - beacon; | |
110 | ||
111 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ | |
112 | while ((tim_idx < (frame_size - 2)) && | |
113 | (beacon[tim_idx] != WLAN_EID_TIM)) | |
114 | tim_idx += beacon[tim_idx+1] + 2; | |
115 | ||
116 | /* If TIM field was found, set variables */ | |
117 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { | |
118 | tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); | |
119 | tx_beacon_cmd->tim_size = beacon[tim_idx+1]; | |
120 | } else | |
121 | IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); | |
122 | } | |
123 | ||
8a98d49e | 124 | int iwlagn_send_beacon_cmd(struct iwl_priv *priv) |
4bf64efd TW |
125 | { |
126 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; | |
8a98d49e JB |
127 | struct iwl_host_cmd cmd = { |
128 | .id = REPLY_TX_BEACON, | |
e419d62d | 129 | .flags = CMD_SYNC, |
8a98d49e | 130 | }; |
0b5b3ff1 | 131 | struct ieee80211_tx_info *info; |
47ff65c4 DH |
132 | u32 frame_size; |
133 | u32 rate_flags; | |
134 | u32 rate; | |
8a98d49e | 135 | |
47ff65c4 DH |
136 | /* |
137 | * We have to set up the TX command, the TX Beacon command, and the | |
138 | * beacon contents. | |
139 | */ | |
4bf64efd | 140 | |
76d04815 JB |
141 | lockdep_assert_held(&priv->mutex); |
142 | ||
143 | if (!priv->beacon_ctx) { | |
144 | IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); | |
950094cb | 145 | return 0; |
76d04815 JB |
146 | } |
147 | ||
8a98d49e JB |
148 | if (WARN_ON(!priv->beacon_skb)) |
149 | return -EINVAL; | |
150 | ||
4ce7cc2b JB |
151 | /* Allocate beacon command */ |
152 | if (!priv->beacon_cmd) | |
153 | priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); | |
154 | tx_beacon_cmd = priv->beacon_cmd; | |
8a98d49e JB |
155 | if (!tx_beacon_cmd) |
156 | return -ENOMEM; | |
157 | ||
158 | frame_size = priv->beacon_skb->len; | |
4bf64efd | 159 | |
47ff65c4 | 160 | /* Set up TX command fields */ |
4bf64efd | 161 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
76d04815 | 162 | tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; |
47ff65c4 DH |
163 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
164 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | | |
165 | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; | |
4bf64efd | 166 | |
47ff65c4 | 167 | /* Set up TX beacon command fields */ |
4ce7cc2b | 168 | iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, |
77834543 | 169 | frame_size); |
4bf64efd | 170 | |
47ff65c4 | 171 | /* Set up packet rate and flags */ |
0b5b3ff1 JB |
172 | info = IEEE80211_SKB_CB(priv->beacon_skb); |
173 | ||
174 | /* | |
175 | * Let's set up the rate at least somewhat correctly; | |
176 | * it will currently not actually be used by the uCode, | |
177 | * it uses the broadcast station's rate instead. | |
178 | */ | |
179 | if (info->control.rates[0].idx < 0 || | |
180 | info->control.rates[0].flags & IEEE80211_TX_RC_MCS) | |
181 | rate = 0; | |
182 | else | |
183 | rate = info->control.rates[0].idx; | |
184 | ||
0e1654fa JB |
185 | priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, |
186 | priv->hw_params.valid_tx_ant); | |
47ff65c4 | 187 | rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); |
0b5b3ff1 JB |
188 | |
189 | /* In mac80211, rates for 5 GHz start at 0 */ | |
190 | if (info->band == IEEE80211_BAND_5GHZ) | |
191 | rate += IWL_FIRST_OFDM_RATE; | |
192 | else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) | |
47ff65c4 | 193 | rate_flags |= RATE_MCS_CCK_MSK; |
0b5b3ff1 JB |
194 | |
195 | tx_beacon_cmd->tx.rate_n_flags = | |
196 | iwl_hw_set_rate_n_flags(rate, rate_flags); | |
4bf64efd | 197 | |
8a98d49e | 198 | /* Submit command */ |
4ce7cc2b | 199 | cmd.len[0] = sizeof(*tx_beacon_cmd); |
3fa50738 | 200 | cmd.data[0] = tx_beacon_cmd; |
4ce7cc2b JB |
201 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
202 | cmd.len[1] = frame_size; | |
203 | cmd.data[1] = priv->beacon_skb->data; | |
204 | cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; | |
7aaa1d79 | 205 | |
41c50542 | 206 | return trans_send_cmd(&priv->trans, &cmd); |
a8e74e27 SO |
207 | } |
208 | ||
5b9f8cd3 | 209 | static void iwl_bg_beacon_update(struct work_struct *work) |
b481de9c | 210 | { |
c79dd5b5 TW |
211 | struct iwl_priv *priv = |
212 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
213 | struct sk_buff *beacon; |
214 | ||
76d04815 JB |
215 | mutex_lock(&priv->mutex); |
216 | if (!priv->beacon_ctx) { | |
217 | IWL_ERR(priv, "updating beacon w/o beacon context!\n"); | |
218 | goto out; | |
219 | } | |
b481de9c | 220 | |
60744f62 JB |
221 | if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { |
222 | /* | |
223 | * The ucode will send beacon notifications even in | |
224 | * IBSS mode, but we don't want to process them. But | |
225 | * we need to defer the type check to here due to | |
226 | * requiring locking around the beacon_ctx access. | |
227 | */ | |
228 | goto out; | |
229 | } | |
230 | ||
76d04815 JB |
231 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
232 | beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); | |
b481de9c | 233 | if (!beacon) { |
77834543 | 234 | IWL_ERR(priv, "update beacon failed -- keeping old\n"); |
76d04815 | 235 | goto out; |
b481de9c ZY |
236 | } |
237 | ||
b481de9c | 238 | /* new beacon skb is allocated every time; dispose previous.*/ |
77834543 | 239 | dev_kfree_skb(priv->beacon_skb); |
b481de9c | 240 | |
12e934dc | 241 | priv->beacon_skb = beacon; |
b481de9c | 242 | |
2295c66b | 243 | iwlagn_send_beacon_cmd(priv); |
76d04815 JB |
244 | out: |
245 | mutex_unlock(&priv->mutex); | |
b481de9c ZY |
246 | } |
247 | ||
fbba9410 WYG |
248 | static void iwl_bg_bt_runtime_config(struct work_struct *work) |
249 | { | |
250 | struct iwl_priv *priv = | |
251 | container_of(work, struct iwl_priv, bt_runtime_config); | |
252 | ||
253 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
254 | return; | |
255 | ||
256 | /* dont send host command if rf-kill is on */ | |
257 | if (!iwl_is_ready_rf(priv)) | |
258 | return; | |
e55b517c | 259 | iwlagn_send_advance_bt_config(priv); |
fbba9410 WYG |
260 | } |
261 | ||
bee008b7 WYG |
262 | static void iwl_bg_bt_full_concurrency(struct work_struct *work) |
263 | { | |
264 | struct iwl_priv *priv = | |
265 | container_of(work, struct iwl_priv, bt_full_concurrency); | |
246ed355 | 266 | struct iwl_rxon_context *ctx; |
bee008b7 | 267 | |
dc1a4068 SG |
268 | mutex_lock(&priv->mutex); |
269 | ||
bee008b7 | 270 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
dc1a4068 | 271 | goto out; |
bee008b7 WYG |
272 | |
273 | /* dont send host command if rf-kill is on */ | |
274 | if (!iwl_is_ready_rf(priv)) | |
dc1a4068 | 275 | goto out; |
bee008b7 WYG |
276 | |
277 | IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", | |
278 | priv->bt_full_concurrent ? | |
279 | "full concurrency" : "3-wire"); | |
280 | ||
281 | /* | |
282 | * LQ & RXON updated cmds must be sent before BT Config cmd | |
283 | * to avoid 3-wire collisions | |
284 | */ | |
246ed355 | 285 | for_each_context(priv, ctx) { |
e3f10cea | 286 | iwlagn_set_rxon_chain(priv, ctx); |
805a3b81 | 287 | iwlagn_commit_rxon(priv, ctx); |
246ed355 | 288 | } |
bee008b7 | 289 | |
e55b517c | 290 | iwlagn_send_advance_bt_config(priv); |
dc1a4068 SG |
291 | out: |
292 | mutex_unlock(&priv->mutex); | |
bee008b7 WYG |
293 | } |
294 | ||
4e39317d | 295 | /** |
5b9f8cd3 | 296 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
4e39317d EG |
297 | * |
298 | * This callback is provided in order to send a statistics request. | |
299 | * | |
300 | * This timer function is continually reset to execute within | |
301 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
302 | * was received. We need to ensure we receive the statistics in order | |
303 | * to update the temperature used for calibrating the TXPOWER. | |
304 | */ | |
5b9f8cd3 | 305 | static void iwl_bg_statistics_periodic(unsigned long data) |
4e39317d EG |
306 | { |
307 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
308 | ||
309 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
310 | return; | |
311 | ||
61780ee3 MA |
312 | /* dont send host command if rf-kill is on */ |
313 | if (!iwl_is_ready_rf(priv)) | |
314 | return; | |
315 | ||
ef8d5529 | 316 | iwl_send_statistics_request(priv, CMD_ASYNC, false); |
4e39317d EG |
317 | } |
318 | ||
a9e1cb6a WYG |
319 | |
320 | static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, | |
321 | u32 start_idx, u32 num_events, | |
322 | u32 mode) | |
323 | { | |
324 | u32 i; | |
325 | u32 ptr; /* SRAM byte address of log data */ | |
326 | u32 ev, time, data; /* event log data */ | |
327 | unsigned long reg_flags; | |
328 | ||
329 | if (mode == 0) | |
330 | ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); | |
331 | else | |
332 | ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); | |
333 | ||
334 | /* Make sure device is powered up for SRAM reads */ | |
335 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
336 | if (iwl_grab_nic_access(priv)) { | |
337 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
338 | return; | |
339 | } | |
340 | ||
341 | /* Set starting address; reads will auto-increment */ | |
02a7fa00 | 342 | iwl_write32(priv, HBUS_TARG_MEM_RADDR, ptr); |
a9e1cb6a WYG |
343 | rmb(); |
344 | ||
345 | /* | |
346 | * "time" is actually "data" for mode 0 (no timestamp). | |
347 | * place event id # at far right for easier visual parsing. | |
348 | */ | |
349 | for (i = 0; i < num_events; i++) { | |
02a7fa00 JB |
350 | ev = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
351 | time = iwl_read32(priv, HBUS_TARG_MEM_RDAT); | |
a9e1cb6a WYG |
352 | if (mode == 0) { |
353 | trace_iwlwifi_dev_ucode_cont_event(priv, | |
354 | 0, time, ev); | |
355 | } else { | |
02a7fa00 | 356 | data = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
a9e1cb6a WYG |
357 | trace_iwlwifi_dev_ucode_cont_event(priv, |
358 | time, data, ev); | |
359 | } | |
360 | } | |
361 | /* Allow device to power down */ | |
362 | iwl_release_nic_access(priv); | |
363 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
364 | } | |
365 | ||
875295f1 | 366 | static void iwl_continuous_event_trace(struct iwl_priv *priv) |
a9e1cb6a WYG |
367 | { |
368 | u32 capacity; /* event log capacity in # entries */ | |
369 | u32 base; /* SRAM byte address of event log header */ | |
370 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
371 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
372 | u32 next_entry; /* index of next entry to be written by uCode */ | |
373 | ||
d7d5783c | 374 | base = priv->device_pointers.error_event_table; |
4caab328 | 375 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
a9e1cb6a WYG |
376 | capacity = iwl_read_targ_mem(priv, base); |
377 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
378 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
379 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
380 | } else | |
381 | return; | |
382 | ||
383 | if (num_wraps == priv->event_log.num_wraps) { | |
384 | iwl_print_cont_event_trace(priv, | |
385 | base, priv->event_log.next_entry, | |
386 | next_entry - priv->event_log.next_entry, | |
387 | mode); | |
388 | priv->event_log.non_wraps_count++; | |
389 | } else { | |
390 | if ((num_wraps - priv->event_log.num_wraps) > 1) | |
391 | priv->event_log.wraps_more_count++; | |
392 | else | |
393 | priv->event_log.wraps_once_count++; | |
394 | trace_iwlwifi_dev_ucode_wrap_event(priv, | |
395 | num_wraps - priv->event_log.num_wraps, | |
396 | next_entry, priv->event_log.next_entry); | |
397 | if (next_entry < priv->event_log.next_entry) { | |
398 | iwl_print_cont_event_trace(priv, base, | |
399 | priv->event_log.next_entry, | |
400 | capacity - priv->event_log.next_entry, | |
401 | mode); | |
402 | ||
403 | iwl_print_cont_event_trace(priv, base, 0, | |
404 | next_entry, mode); | |
405 | } else { | |
406 | iwl_print_cont_event_trace(priv, base, | |
407 | next_entry, capacity - next_entry, | |
408 | mode); | |
409 | ||
410 | iwl_print_cont_event_trace(priv, base, 0, | |
411 | next_entry, mode); | |
412 | } | |
413 | } | |
414 | priv->event_log.num_wraps = num_wraps; | |
415 | priv->event_log.next_entry = next_entry; | |
416 | } | |
417 | ||
418 | /** | |
419 | * iwl_bg_ucode_trace - Timer callback to log ucode event | |
420 | * | |
421 | * The timer is continually set to execute every | |
422 | * UCODE_TRACE_PERIOD milliseconds after the last timer expired | |
423 | * this function is to perform continuous uCode event logging operation | |
424 | * if enabled | |
425 | */ | |
426 | static void iwl_bg_ucode_trace(unsigned long data) | |
427 | { | |
428 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
429 | ||
430 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
431 | return; | |
432 | ||
433 | if (priv->event_log.ucode_trace) { | |
434 | iwl_continuous_event_trace(priv); | |
435 | /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ | |
436 | mod_timer(&priv->ucode_trace, | |
437 | jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); | |
438 | } | |
439 | } | |
440 | ||
65550636 WYG |
441 | static void iwl_bg_tx_flush(struct work_struct *work) |
442 | { | |
443 | struct iwl_priv *priv = | |
444 | container_of(work, struct iwl_priv, tx_flush); | |
445 | ||
446 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
447 | return; | |
448 | ||
449 | /* do nothing if rf-kill is on */ | |
450 | if (!iwl_is_ready_rf(priv)) | |
451 | return; | |
452 | ||
c68744fb WYG |
453 | IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); |
454 | iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); | |
65550636 WYG |
455 | } |
456 | ||
7d47618a EG |
457 | /***************************************************************************** |
458 | * | |
459 | * sysfs attributes | |
460 | * | |
461 | *****************************************************************************/ | |
462 | ||
463 | #ifdef CONFIG_IWLWIFI_DEBUG | |
464 | ||
465 | /* | |
466 | * The following adds a new attribute to the sysfs representation | |
467 | * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) | |
468 | * used for controlling the debug level. | |
469 | * | |
470 | * See the level definitions in iwl for details. | |
471 | * | |
472 | * The debug_level being managed using sysfs below is a per device debug | |
473 | * level that is used instead of the global debug level if it (the per | |
474 | * device debug level) is set. | |
475 | */ | |
476 | static ssize_t show_debug_level(struct device *d, | |
477 | struct device_attribute *attr, char *buf) | |
478 | { | |
479 | struct iwl_priv *priv = dev_get_drvdata(d); | |
480 | return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); | |
481 | } | |
482 | static ssize_t store_debug_level(struct device *d, | |
483 | struct device_attribute *attr, | |
484 | const char *buf, size_t count) | |
485 | { | |
486 | struct iwl_priv *priv = dev_get_drvdata(d); | |
487 | unsigned long val; | |
488 | int ret; | |
489 | ||
490 | ret = strict_strtoul(buf, 0, &val); | |
491 | if (ret) | |
492 | IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); | |
493 | else { | |
494 | priv->debug_level = val; | |
495 | if (iwl_alloc_traffic_mem(priv)) | |
496 | IWL_ERR(priv, | |
497 | "Not enough memory to generate traffic log\n"); | |
498 | } | |
499 | return strnlen(buf, count); | |
500 | } | |
501 | ||
502 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
503 | show_debug_level, store_debug_level); | |
504 | ||
505 | ||
506 | #endif /* CONFIG_IWLWIFI_DEBUG */ | |
507 | ||
508 | ||
509 | static ssize_t show_temperature(struct device *d, | |
510 | struct device_attribute *attr, char *buf) | |
511 | { | |
512 | struct iwl_priv *priv = dev_get_drvdata(d); | |
513 | ||
514 | if (!iwl_is_alive(priv)) | |
515 | return -EAGAIN; | |
516 | ||
517 | return sprintf(buf, "%d\n", priv->temperature); | |
518 | } | |
519 | ||
520 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
521 | ||
522 | static ssize_t show_tx_power(struct device *d, | |
523 | struct device_attribute *attr, char *buf) | |
524 | { | |
525 | struct iwl_priv *priv = dev_get_drvdata(d); | |
526 | ||
527 | if (!iwl_is_ready_rf(priv)) | |
528 | return sprintf(buf, "off\n"); | |
529 | else | |
530 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); | |
531 | } | |
532 | ||
533 | static ssize_t store_tx_power(struct device *d, | |
534 | struct device_attribute *attr, | |
535 | const char *buf, size_t count) | |
536 | { | |
537 | struct iwl_priv *priv = dev_get_drvdata(d); | |
538 | unsigned long val; | |
539 | int ret; | |
540 | ||
541 | ret = strict_strtoul(buf, 10, &val); | |
542 | if (ret) | |
543 | IWL_INFO(priv, "%s is not in decimal form.\n", buf); | |
544 | else { | |
545 | ret = iwl_set_tx_power(priv, val, false); | |
546 | if (ret) | |
547 | IWL_ERR(priv, "failed setting tx power (0x%d).\n", | |
548 | ret); | |
549 | else | |
550 | ret = count; | |
551 | } | |
552 | return ret; | |
553 | } | |
554 | ||
555 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
556 | ||
7d47618a EG |
557 | static struct attribute *iwl_sysfs_entries[] = { |
558 | &dev_attr_temperature.attr, | |
559 | &dev_attr_tx_power.attr, | |
7d47618a EG |
560 | #ifdef CONFIG_IWLWIFI_DEBUG |
561 | &dev_attr_debug_level.attr, | |
562 | #endif | |
563 | NULL | |
564 | }; | |
565 | ||
566 | static struct attribute_group iwl_attribute_group = { | |
567 | .name = NULL, /* put in device directory */ | |
568 | .attrs = iwl_sysfs_entries, | |
569 | }; | |
570 | ||
b481de9c ZY |
571 | /****************************************************************************** |
572 | * | |
573 | * uCode download functions | |
574 | * | |
575 | ******************************************************************************/ | |
576 | ||
3599d39a | 577 | static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc) |
dbf28e21 JB |
578 | { |
579 | if (desc->v_addr) | |
d5934110 | 580 | dma_free_coherent(priv->bus->dev, desc->len, |
dbf28e21 JB |
581 | desc->v_addr, desc->p_addr); |
582 | desc->v_addr = NULL; | |
583 | desc->len = 0; | |
584 | } | |
585 | ||
3599d39a | 586 | static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img) |
dbf28e21 | 587 | { |
3599d39a EG |
588 | iwl_free_fw_desc(priv, &img->code); |
589 | iwl_free_fw_desc(priv, &img->data); | |
dbf28e21 JB |
590 | } |
591 | ||
3599d39a EG |
592 | static void iwl_dealloc_ucode(struct iwl_priv *priv) |
593 | { | |
594 | iwl_free_fw_img(priv, &priv->ucode_rt); | |
595 | iwl_free_fw_img(priv, &priv->ucode_init); | |
c8ac61cf | 596 | iwl_free_fw_img(priv, &priv->ucode_wowlan); |
3599d39a EG |
597 | } |
598 | ||
599 | static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc, | |
dbf28e21 JB |
600 | const void *data, size_t len) |
601 | { | |
602 | if (!len) { | |
603 | desc->v_addr = NULL; | |
604 | return -EINVAL; | |
605 | } | |
606 | ||
d5934110 | 607 | desc->v_addr = dma_alloc_coherent(priv->bus->dev, len, |
dbf28e21 JB |
608 | &desc->p_addr, GFP_KERNEL); |
609 | if (!desc->v_addr) | |
610 | return -ENOMEM; | |
3599d39a | 611 | |
dbf28e21 JB |
612 | desc->len = len; |
613 | memcpy(desc->v_addr, data, len); | |
614 | return 0; | |
615 | } | |
616 | ||
dd7a2509 JB |
617 | struct iwlagn_ucode_capabilities { |
618 | u32 max_probe_length; | |
6a822d06 | 619 | u32 standard_phy_calibration_size; |
3997ff39 | 620 | u32 flags; |
dd7a2509 | 621 | }; |
edcdf8b2 | 622 | |
b08dfd04 | 623 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); |
dd7a2509 JB |
624 | static int iwl_mac_setup_register(struct iwl_priv *priv, |
625 | struct iwlagn_ucode_capabilities *capa); | |
b08dfd04 | 626 | |
39396085 JS |
627 | #define UCODE_EXPERIMENTAL_INDEX 100 |
628 | #define UCODE_EXPERIMENTAL_TAG "exp" | |
629 | ||
b08dfd04 JB |
630 | static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) |
631 | { | |
632 | const char *name_pre = priv->cfg->fw_name_pre; | |
39396085 | 633 | char tag[8]; |
b08dfd04 | 634 | |
39396085 JS |
635 | if (first) { |
636 | #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE | |
637 | priv->fw_index = UCODE_EXPERIMENTAL_INDEX; | |
638 | strcpy(tag, UCODE_EXPERIMENTAL_TAG); | |
639 | } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) { | |
640 | #endif | |
b08dfd04 | 641 | priv->fw_index = priv->cfg->ucode_api_max; |
39396085 JS |
642 | sprintf(tag, "%d", priv->fw_index); |
643 | } else { | |
b08dfd04 | 644 | priv->fw_index--; |
39396085 JS |
645 | sprintf(tag, "%d", priv->fw_index); |
646 | } | |
b08dfd04 JB |
647 | |
648 | if (priv->fw_index < priv->cfg->ucode_api_min) { | |
649 | IWL_ERR(priv, "no suitable firmware found!\n"); | |
650 | return -ENOENT; | |
651 | } | |
652 | ||
39396085 | 653 | sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); |
b08dfd04 | 654 | |
39396085 JS |
655 | IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n", |
656 | (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
657 | ? "EXPERIMENTAL " : "", | |
b08dfd04 JB |
658 | priv->firmware_name); |
659 | ||
660 | return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, | |
d5934110 | 661 | priv->bus->dev, |
3599d39a | 662 | GFP_KERNEL, priv, iwl_ucode_callback); |
b08dfd04 JB |
663 | } |
664 | ||
0e9a44dc | 665 | struct iwlagn_firmware_pieces { |
c8ac61cf JB |
666 | const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data; |
667 | size_t inst_size, data_size, init_size, init_data_size, | |
668 | wowlan_inst_size, wowlan_data_size; | |
0e9a44dc JB |
669 | |
670 | u32 build; | |
b2e640d4 JB |
671 | |
672 | u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; | |
673 | u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; | |
0e9a44dc JB |
674 | }; |
675 | ||
676 | static int iwlagn_load_legacy_firmware(struct iwl_priv *priv, | |
677 | const struct firmware *ucode_raw, | |
678 | struct iwlagn_firmware_pieces *pieces) | |
679 | { | |
680 | struct iwl_ucode_header *ucode = (void *)ucode_raw->data; | |
681 | u32 api_ver, hdr_size; | |
682 | const u8 *src; | |
683 | ||
684 | priv->ucode_ver = le32_to_cpu(ucode->ver); | |
685 | api_ver = IWL_UCODE_API(priv->ucode_ver); | |
686 | ||
687 | switch (api_ver) { | |
688 | default: | |
f7d046f9 WYG |
689 | hdr_size = 28; |
690 | if (ucode_raw->size < hdr_size) { | |
691 | IWL_ERR(priv, "File size too small!\n"); | |
692 | return -EINVAL; | |
0e9a44dc | 693 | } |
f7d046f9 WYG |
694 | pieces->build = le32_to_cpu(ucode->u.v2.build); |
695 | pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); | |
696 | pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); | |
697 | pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); | |
698 | pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); | |
f7d046f9 WYG |
699 | src = ucode->u.v2.data; |
700 | break; | |
0e9a44dc JB |
701 | case 0: |
702 | case 1: | |
703 | case 2: | |
704 | hdr_size = 24; | |
705 | if (ucode_raw->size < hdr_size) { | |
706 | IWL_ERR(priv, "File size too small!\n"); | |
707 | return -EINVAL; | |
708 | } | |
709 | pieces->build = 0; | |
710 | pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size); | |
711 | pieces->data_size = le32_to_cpu(ucode->u.v1.data_size); | |
712 | pieces->init_size = le32_to_cpu(ucode->u.v1.init_size); | |
713 | pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size); | |
0e9a44dc JB |
714 | src = ucode->u.v1.data; |
715 | break; | |
716 | } | |
717 | ||
718 | /* Verify size of file vs. image size info in file's header */ | |
719 | if (ucode_raw->size != hdr_size + pieces->inst_size + | |
720 | pieces->data_size + pieces->init_size + | |
1fc35276 | 721 | pieces->init_data_size) { |
0e9a44dc JB |
722 | |
723 | IWL_ERR(priv, | |
724 | "uCode file size %d does not match expected size\n", | |
725 | (int)ucode_raw->size); | |
726 | return -EINVAL; | |
727 | } | |
728 | ||
729 | pieces->inst = src; | |
730 | src += pieces->inst_size; | |
731 | pieces->data = src; | |
732 | src += pieces->data_size; | |
733 | pieces->init = src; | |
734 | src += pieces->init_size; | |
735 | pieces->init_data = src; | |
736 | src += pieces->init_data_size; | |
0e9a44dc JB |
737 | |
738 | return 0; | |
739 | } | |
740 | ||
dd7a2509 JB |
741 | static int iwlagn_wanted_ucode_alternative = 1; |
742 | ||
743 | static int iwlagn_load_firmware(struct iwl_priv *priv, | |
744 | const struct firmware *ucode_raw, | |
745 | struct iwlagn_firmware_pieces *pieces, | |
746 | struct iwlagn_ucode_capabilities *capa) | |
747 | { | |
748 | struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; | |
749 | struct iwl_ucode_tlv *tlv; | |
750 | size_t len = ucode_raw->size; | |
751 | const u8 *data; | |
752 | int wanted_alternative = iwlagn_wanted_ucode_alternative, tmp; | |
753 | u64 alternatives; | |
ad8d8333 WYG |
754 | u32 tlv_len; |
755 | enum iwl_ucode_tlv_type tlv_type; | |
756 | const u8 *tlv_data; | |
dd7a2509 | 757 | |
ad8d8333 WYG |
758 | if (len < sizeof(*ucode)) { |
759 | IWL_ERR(priv, "uCode has invalid length: %zd\n", len); | |
dd7a2509 | 760 | return -EINVAL; |
ad8d8333 | 761 | } |
dd7a2509 | 762 | |
ad8d8333 WYG |
763 | if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { |
764 | IWL_ERR(priv, "invalid uCode magic: 0X%x\n", | |
765 | le32_to_cpu(ucode->magic)); | |
dd7a2509 | 766 | return -EINVAL; |
ad8d8333 | 767 | } |
dd7a2509 JB |
768 | |
769 | /* | |
770 | * Check which alternatives are present, and "downgrade" | |
771 | * when the chosen alternative is not present, warning | |
772 | * the user when that happens. Some files may not have | |
773 | * any alternatives, so don't warn in that case. | |
774 | */ | |
775 | alternatives = le64_to_cpu(ucode->alternatives); | |
776 | tmp = wanted_alternative; | |
777 | if (wanted_alternative > 63) | |
778 | wanted_alternative = 63; | |
779 | while (wanted_alternative && !(alternatives & BIT(wanted_alternative))) | |
780 | wanted_alternative--; | |
781 | if (wanted_alternative && wanted_alternative != tmp) | |
782 | IWL_WARN(priv, | |
783 | "uCode alternative %d not available, choosing %d\n", | |
784 | tmp, wanted_alternative); | |
785 | ||
786 | priv->ucode_ver = le32_to_cpu(ucode->ver); | |
787 | pieces->build = le32_to_cpu(ucode->build); | |
788 | data = ucode->data; | |
789 | ||
790 | len -= sizeof(*ucode); | |
791 | ||
704da534 | 792 | while (len >= sizeof(*tlv)) { |
dd7a2509 | 793 | u16 tlv_alt; |
dd7a2509 JB |
794 | |
795 | len -= sizeof(*tlv); | |
796 | tlv = (void *)data; | |
797 | ||
798 | tlv_len = le32_to_cpu(tlv->length); | |
799 | tlv_type = le16_to_cpu(tlv->type); | |
800 | tlv_alt = le16_to_cpu(tlv->alternative); | |
801 | tlv_data = tlv->data; | |
802 | ||
ad8d8333 WYG |
803 | if (len < tlv_len) { |
804 | IWL_ERR(priv, "invalid TLV len: %zd/%u\n", | |
805 | len, tlv_len); | |
dd7a2509 | 806 | return -EINVAL; |
ad8d8333 | 807 | } |
dd7a2509 JB |
808 | len -= ALIGN(tlv_len, 4); |
809 | data += sizeof(*tlv) + ALIGN(tlv_len, 4); | |
810 | ||
811 | /* | |
812 | * Alternative 0 is always valid. | |
813 | * | |
814 | * Skip alternative TLVs that are not selected. | |
815 | */ | |
816 | if (tlv_alt != 0 && tlv_alt != wanted_alternative) | |
817 | continue; | |
818 | ||
819 | switch (tlv_type) { | |
820 | case IWL_UCODE_TLV_INST: | |
821 | pieces->inst = tlv_data; | |
822 | pieces->inst_size = tlv_len; | |
823 | break; | |
824 | case IWL_UCODE_TLV_DATA: | |
825 | pieces->data = tlv_data; | |
826 | pieces->data_size = tlv_len; | |
827 | break; | |
828 | case IWL_UCODE_TLV_INIT: | |
829 | pieces->init = tlv_data; | |
830 | pieces->init_size = tlv_len; | |
831 | break; | |
832 | case IWL_UCODE_TLV_INIT_DATA: | |
833 | pieces->init_data = tlv_data; | |
834 | pieces->init_data_size = tlv_len; | |
835 | break; | |
836 | case IWL_UCODE_TLV_BOOT: | |
1fc35276 | 837 | IWL_ERR(priv, "Found unexpected BOOT ucode\n"); |
dd7a2509 JB |
838 | break; |
839 | case IWL_UCODE_TLV_PROBE_MAX_LEN: | |
704da534 JB |
840 | if (tlv_len != sizeof(u32)) |
841 | goto invalid_tlv_len; | |
842 | capa->max_probe_length = | |
ad8d8333 | 843 | le32_to_cpup((__le32 *)tlv_data); |
dd7a2509 | 844 | break; |
ece9c4ee JB |
845 | case IWL_UCODE_TLV_PAN: |
846 | if (tlv_len) | |
847 | goto invalid_tlv_len; | |
3997ff39 JB |
848 | capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; |
849 | break; | |
850 | case IWL_UCODE_TLV_FLAGS: | |
851 | /* must be at least one u32 */ | |
852 | if (tlv_len < sizeof(u32)) | |
853 | goto invalid_tlv_len; | |
854 | /* and a proper number of u32s */ | |
855 | if (tlv_len % sizeof(u32)) | |
856 | goto invalid_tlv_len; | |
857 | /* | |
858 | * This driver only reads the first u32 as | |
859 | * right now no more features are defined, | |
860 | * if that changes then either the driver | |
861 | * will not work with the new firmware, or | |
862 | * it'll not take advantage of new features. | |
863 | */ | |
864 | capa->flags = le32_to_cpup((__le32 *)tlv_data); | |
ece9c4ee | 865 | break; |
b2e640d4 | 866 | case IWL_UCODE_TLV_INIT_EVTLOG_PTR: |
704da534 JB |
867 | if (tlv_len != sizeof(u32)) |
868 | goto invalid_tlv_len; | |
869 | pieces->init_evtlog_ptr = | |
ad8d8333 | 870 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
871 | break; |
872 | case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: | |
704da534 JB |
873 | if (tlv_len != sizeof(u32)) |
874 | goto invalid_tlv_len; | |
875 | pieces->init_evtlog_size = | |
ad8d8333 | 876 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
877 | break; |
878 | case IWL_UCODE_TLV_INIT_ERRLOG_PTR: | |
704da534 JB |
879 | if (tlv_len != sizeof(u32)) |
880 | goto invalid_tlv_len; | |
881 | pieces->init_errlog_ptr = | |
ad8d8333 | 882 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
883 | break; |
884 | case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: | |
704da534 JB |
885 | if (tlv_len != sizeof(u32)) |
886 | goto invalid_tlv_len; | |
887 | pieces->inst_evtlog_ptr = | |
ad8d8333 | 888 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
889 | break; |
890 | case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: | |
704da534 JB |
891 | if (tlv_len != sizeof(u32)) |
892 | goto invalid_tlv_len; | |
893 | pieces->inst_evtlog_size = | |
ad8d8333 | 894 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
895 | break; |
896 | case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: | |
704da534 JB |
897 | if (tlv_len != sizeof(u32)) |
898 | goto invalid_tlv_len; | |
899 | pieces->inst_errlog_ptr = | |
ad8d8333 | 900 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 | 901 | break; |
c8312fac WYG |
902 | case IWL_UCODE_TLV_ENHANCE_SENS_TBL: |
903 | if (tlv_len) | |
704da534 JB |
904 | goto invalid_tlv_len; |
905 | priv->enhance_sensitivity_table = true; | |
c8312fac | 906 | break; |
c8ac61cf JB |
907 | case IWL_UCODE_TLV_WOWLAN_INST: |
908 | pieces->wowlan_inst = tlv_data; | |
909 | pieces->wowlan_inst_size = tlv_len; | |
910 | break; | |
911 | case IWL_UCODE_TLV_WOWLAN_DATA: | |
912 | pieces->wowlan_data = tlv_data; | |
913 | pieces->wowlan_data_size = tlv_len; | |
914 | break; | |
6a822d06 | 915 | case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: |
704da534 JB |
916 | if (tlv_len != sizeof(u32)) |
917 | goto invalid_tlv_len; | |
918 | capa->standard_phy_calibration_size = | |
6a822d06 WYG |
919 | le32_to_cpup((__le32 *)tlv_data); |
920 | break; | |
dd7a2509 | 921 | default: |
6fc3ba99 | 922 | IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type); |
dd7a2509 JB |
923 | break; |
924 | } | |
925 | } | |
926 | ||
ad8d8333 WYG |
927 | if (len) { |
928 | IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len); | |
929 | iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len); | |
704da534 | 930 | return -EINVAL; |
ad8d8333 | 931 | } |
dd7a2509 | 932 | |
704da534 JB |
933 | return 0; |
934 | ||
935 | invalid_tlv_len: | |
936 | IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); | |
937 | iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len); | |
938 | ||
939 | return -EINVAL; | |
dd7a2509 JB |
940 | } |
941 | ||
b481de9c | 942 | /** |
b08dfd04 | 943 | * iwl_ucode_callback - callback when firmware was loaded |
b481de9c | 944 | * |
b08dfd04 JB |
945 | * If loaded successfully, copies the firmware into buffers |
946 | * for the card to fetch (via DMA). | |
b481de9c | 947 | */ |
b08dfd04 | 948 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) |
b481de9c | 949 | { |
b08dfd04 | 950 | struct iwl_priv *priv = context; |
cc0f555d | 951 | struct iwl_ucode_header *ucode; |
0e9a44dc JB |
952 | int err; |
953 | struct iwlagn_firmware_pieces pieces; | |
a0987a8d RC |
954 | const unsigned int api_max = priv->cfg->ucode_api_max; |
955 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
0e9a44dc | 956 | u32 api_ver; |
3e4de761 | 957 | char buildstr[25]; |
0e9a44dc | 958 | u32 build; |
dd7a2509 JB |
959 | struct iwlagn_ucode_capabilities ucode_capa = { |
960 | .max_probe_length = 200, | |
6a822d06 | 961 | .standard_phy_calibration_size = |
642454cc | 962 | IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE, |
dd7a2509 | 963 | }; |
0e9a44dc JB |
964 | |
965 | memset(&pieces, 0, sizeof(pieces)); | |
b481de9c | 966 | |
b08dfd04 | 967 | if (!ucode_raw) { |
39396085 JS |
968 | if (priv->fw_index <= priv->cfg->ucode_api_max) |
969 | IWL_ERR(priv, | |
970 | "request for firmware file '%s' failed.\n", | |
971 | priv->firmware_name); | |
b08dfd04 | 972 | goto try_again; |
b481de9c ZY |
973 | } |
974 | ||
b08dfd04 JB |
975 | IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", |
976 | priv->firmware_name, ucode_raw->size); | |
b481de9c | 977 | |
22adba2a JB |
978 | /* Make sure that we got at least the API version number */ |
979 | if (ucode_raw->size < 4) { | |
15b1687c | 980 | IWL_ERR(priv, "File size way too small!\n"); |
b08dfd04 | 981 | goto try_again; |
b481de9c ZY |
982 | } |
983 | ||
984 | /* Data from ucode file: header followed by uCode images */ | |
cc0f555d | 985 | ucode = (struct iwl_ucode_header *)ucode_raw->data; |
b481de9c | 986 | |
0e9a44dc JB |
987 | if (ucode->ver) |
988 | err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces); | |
989 | else | |
dd7a2509 JB |
990 | err = iwlagn_load_firmware(priv, ucode_raw, &pieces, |
991 | &ucode_capa); | |
22adba2a | 992 | |
0e9a44dc JB |
993 | if (err) |
994 | goto try_again; | |
b481de9c | 995 | |
a0987a8d | 996 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
0e9a44dc | 997 | build = pieces.build; |
a0987a8d | 998 | |
0e9a44dc JB |
999 | /* |
1000 | * api_ver should match the api version forming part of the | |
1001 | * firmware filename ... but we don't check for that and only rely | |
1002 | * on the API version read from firmware header from here on forward | |
1003 | */ | |
65cccfb0 WYG |
1004 | /* no api version check required for experimental uCode */ |
1005 | if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) { | |
1006 | if (api_ver < api_min || api_ver > api_max) { | |
1007 | IWL_ERR(priv, | |
1008 | "Driver unable to support your firmware API. " | |
1009 | "Driver supports v%u, firmware is v%u.\n", | |
1010 | api_max, api_ver); | |
1011 | goto try_again; | |
1012 | } | |
b08dfd04 | 1013 | |
65cccfb0 WYG |
1014 | if (api_ver != api_max) |
1015 | IWL_ERR(priv, | |
1016 | "Firmware has old API version. Expected v%u, " | |
1017 | "got v%u. New firmware can be obtained " | |
1018 | "from http://www.intellinuxwireless.org.\n", | |
1019 | api_max, api_ver); | |
1020 | } | |
a0987a8d | 1021 | |
3e4de761 | 1022 | if (build) |
39396085 JS |
1023 | sprintf(buildstr, " build %u%s", build, |
1024 | (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
1025 | ? " (EXP)" : ""); | |
3e4de761 JB |
1026 | else |
1027 | buildstr[0] = '\0'; | |
1028 | ||
1029 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n", | |
1030 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
1031 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1032 | IWL_UCODE_API(priv->ucode_ver), | |
1033 | IWL_UCODE_SERIAL(priv->ucode_ver), | |
1034 | buildstr); | |
a0987a8d | 1035 | |
5ebeb5a6 RC |
1036 | snprintf(priv->hw->wiphy->fw_version, |
1037 | sizeof(priv->hw->wiphy->fw_version), | |
3e4de761 | 1038 | "%u.%u.%u.%u%s", |
5ebeb5a6 RC |
1039 | IWL_UCODE_MAJOR(priv->ucode_ver), |
1040 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1041 | IWL_UCODE_API(priv->ucode_ver), | |
3e4de761 JB |
1042 | IWL_UCODE_SERIAL(priv->ucode_ver), |
1043 | buildstr); | |
b481de9c | 1044 | |
b08dfd04 JB |
1045 | /* |
1046 | * For any of the failures below (before allocating pci memory) | |
1047 | * we will try to load a version with a smaller API -- maybe the | |
1048 | * user just got a corrupted version of the latest API. | |
1049 | */ | |
1050 | ||
0e9a44dc JB |
1051 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
1052 | priv->ucode_ver); | |
1053 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n", | |
1054 | pieces.inst_size); | |
1055 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n", | |
1056 | pieces.data_size); | |
1057 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n", | |
1058 | pieces.init_size); | |
1059 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n", | |
1060 | pieces.init_data_size); | |
b481de9c ZY |
1061 | |
1062 | /* Verify that uCode images will fit in card's SRAM */ | |
0e9a44dc JB |
1063 | if (pieces.inst_size > priv->hw_params.max_inst_size) { |
1064 | IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n", | |
1065 | pieces.inst_size); | |
b08dfd04 | 1066 | goto try_again; |
b481de9c ZY |
1067 | } |
1068 | ||
0e9a44dc JB |
1069 | if (pieces.data_size > priv->hw_params.max_data_size) { |
1070 | IWL_ERR(priv, "uCode data len %Zd too large to fit in\n", | |
1071 | pieces.data_size); | |
b08dfd04 | 1072 | goto try_again; |
b481de9c | 1073 | } |
0e9a44dc JB |
1074 | |
1075 | if (pieces.init_size > priv->hw_params.max_inst_size) { | |
1076 | IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n", | |
1077 | pieces.init_size); | |
b08dfd04 | 1078 | goto try_again; |
b481de9c | 1079 | } |
0e9a44dc JB |
1080 | |
1081 | if (pieces.init_data_size > priv->hw_params.max_data_size) { | |
1082 | IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n", | |
1083 | pieces.init_data_size); | |
b08dfd04 | 1084 | goto try_again; |
b481de9c | 1085 | } |
0e9a44dc | 1086 | |
b481de9c ZY |
1087 | /* Allocate ucode buffers for card's bus-master loading ... */ |
1088 | ||
1089 | /* Runtime instructions and 2 copies of data: | |
1090 | * 1) unmodified from disk | |
1091 | * 2) backup cache for save/restore during power-downs */ | |
3599d39a | 1092 | if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code, |
dbf28e21 JB |
1093 | pieces.inst, pieces.inst_size)) |
1094 | goto err_pci_alloc; | |
3599d39a | 1095 | if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data, |
dbf28e21 | 1096 | pieces.data, pieces.data_size)) |
1f304e4e ZY |
1097 | goto err_pci_alloc; |
1098 | ||
b481de9c | 1099 | /* Initialization instructions and data */ |
0e9a44dc | 1100 | if (pieces.init_size && pieces.init_data_size) { |
3599d39a | 1101 | if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code, |
dbf28e21 JB |
1102 | pieces.init, pieces.init_size)) |
1103 | goto err_pci_alloc; | |
3599d39a | 1104 | if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data, |
dbf28e21 | 1105 | pieces.init_data, pieces.init_data_size)) |
90e759d1 TW |
1106 | goto err_pci_alloc; |
1107 | } | |
b481de9c | 1108 | |
c8ac61cf JB |
1109 | /* WoWLAN instructions and data */ |
1110 | if (pieces.wowlan_inst_size && pieces.wowlan_data_size) { | |
1111 | if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code, | |
1112 | pieces.wowlan_inst, | |
1113 | pieces.wowlan_inst_size)) | |
1114 | goto err_pci_alloc; | |
1115 | if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data, | |
1116 | pieces.wowlan_data, | |
1117 | pieces.wowlan_data_size)) | |
1118 | goto err_pci_alloc; | |
1119 | } | |
1120 | ||
b2e640d4 JB |
1121 | /* Now that we can no longer fail, copy information */ |
1122 | ||
1123 | /* | |
1124 | * The (size - 16) / 12 formula is based on the information recorded | |
1125 | * for each event, which is of mode 1 (including timestamp) for all | |
1126 | * new microcodes that include this information. | |
1127 | */ | |
898ed67b | 1128 | priv->init_evtlog_ptr = pieces.init_evtlog_ptr; |
b2e640d4 | 1129 | if (pieces.init_evtlog_size) |
898ed67b | 1130 | priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; |
b2e640d4 | 1131 | else |
898ed67b | 1132 | priv->init_evtlog_size = |
7cb1b088 | 1133 | priv->cfg->base_params->max_event_log_size; |
898ed67b WYG |
1134 | priv->init_errlog_ptr = pieces.init_errlog_ptr; |
1135 | priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr; | |
b2e640d4 | 1136 | if (pieces.inst_evtlog_size) |
898ed67b | 1137 | priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; |
b2e640d4 | 1138 | else |
898ed67b | 1139 | priv->inst_evtlog_size = |
7cb1b088 | 1140 | priv->cfg->base_params->max_event_log_size; |
898ed67b | 1141 | priv->inst_errlog_ptr = pieces.inst_errlog_ptr; |
b2e640d4 | 1142 | |
d2690c0d JB |
1143 | priv->new_scan_threshold_behaviour = |
1144 | !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); | |
1145 | ||
b2ea345e WYG |
1146 | if ((priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE) && |
1147 | (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN)) { | |
ece9c4ee | 1148 | priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN); |
c10afb6e | 1149 | priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; |
ece9c4ee JB |
1150 | } else |
1151 | priv->sta_key_max_num = STA_KEY_MAX_NUM; | |
c10afb6e | 1152 | |
17445b8c JB |
1153 | if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)) |
1154 | priv->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; | |
1155 | else | |
1156 | priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; | |
1157 | ||
6a822d06 WYG |
1158 | /* |
1159 | * figure out the offset of chain noise reset and gain commands | |
1160 | * base on the size of standard phy calibration commands table size | |
1161 | */ | |
1162 | if (ucode_capa.standard_phy_calibration_size > | |
1163 | IWL_MAX_PHY_CALIBRATE_TBL_SIZE) | |
1164 | ucode_capa.standard_phy_calibration_size = | |
1165 | IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
1166 | ||
898ed67b | 1167 | priv->phy_calib_chain_noise_reset_cmd = |
6a822d06 | 1168 | ucode_capa.standard_phy_calibration_size; |
898ed67b | 1169 | priv->phy_calib_chain_noise_gain_cmd = |
6a822d06 WYG |
1170 | ucode_capa.standard_phy_calibration_size + 1; |
1171 | ||
b08dfd04 JB |
1172 | /************************************************** |
1173 | * This is still part of probe() in a sense... | |
1174 | * | |
1175 | * 9. Setup and register with mac80211 and debugfs | |
1176 | **************************************************/ | |
dd7a2509 | 1177 | err = iwl_mac_setup_register(priv, &ucode_capa); |
b08dfd04 JB |
1178 | if (err) |
1179 | goto out_unbind; | |
1180 | ||
1181 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
1182 | if (err) | |
1183 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); | |
1184 | ||
d5934110 | 1185 | err = sysfs_create_group(&(priv->bus->dev->kobj), |
7d47618a EG |
1186 | &iwl_attribute_group); |
1187 | if (err) { | |
1188 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); | |
1189 | goto out_unbind; | |
1190 | } | |
1191 | ||
b481de9c ZY |
1192 | /* We have our copies now, allow OS release its copies */ |
1193 | release_firmware(ucode_raw); | |
898ed67b | 1194 | complete(&priv->firmware_loading_complete); |
b08dfd04 JB |
1195 | return; |
1196 | ||
1197 | try_again: | |
1198 | /* try next, if any */ | |
1199 | if (iwl_request_firmware(priv, false)) | |
1200 | goto out_unbind; | |
1201 | release_firmware(ucode_raw); | |
1202 | return; | |
b481de9c ZY |
1203 | |
1204 | err_pci_alloc: | |
15b1687c | 1205 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
3599d39a | 1206 | iwl_dealloc_ucode(priv); |
b08dfd04 | 1207 | out_unbind: |
898ed67b | 1208 | complete(&priv->firmware_loading_complete); |
d5934110 | 1209 | device_release_driver(priv->bus->dev); |
b481de9c | 1210 | release_firmware(ucode_raw); |
b481de9c ZY |
1211 | } |
1212 | ||
2a897d41 | 1213 | static const char * const desc_lookup_text[] = { |
b7a79404 RC |
1214 | "OK", |
1215 | "FAIL", | |
1216 | "BAD_PARAM", | |
1217 | "BAD_CHECKSUM", | |
1218 | "NMI_INTERRUPT_WDG", | |
1219 | "SYSASSERT", | |
1220 | "FATAL_ERROR", | |
1221 | "BAD_COMMAND", | |
1222 | "HW_ERROR_TUNE_LOCK", | |
1223 | "HW_ERROR_TEMPERATURE", | |
1224 | "ILLEGAL_CHAN_FREQ", | |
1225 | "VCC_NOT_STABLE", | |
1226 | "FH_ERROR", | |
1227 | "NMI_INTERRUPT_HOST", | |
1228 | "NMI_INTERRUPT_ACTION_PT", | |
1229 | "NMI_INTERRUPT_UNKNOWN", | |
1230 | "UCODE_VERSION_MISMATCH", | |
1231 | "HW_ERROR_ABS_LOCK", | |
1232 | "HW_ERROR_CAL_LOCK_FAIL", | |
1233 | "NMI_INTERRUPT_INST_ACTION_PT", | |
1234 | "NMI_INTERRUPT_DATA_ACTION_PT", | |
1235 | "NMI_TRM_HW_ER", | |
1236 | "NMI_INTERRUPT_TRM", | |
2a897d41 | 1237 | "NMI_INTERRUPT_BREAK_POINT", |
b7a79404 RC |
1238 | "DEBUG_0", |
1239 | "DEBUG_1", | |
1240 | "DEBUG_2", | |
1241 | "DEBUG_3", | |
b7a79404 RC |
1242 | }; |
1243 | ||
4b58645c JS |
1244 | static struct { char *name; u8 num; } advanced_lookup[] = { |
1245 | { "NMI_INTERRUPT_WDG", 0x34 }, | |
1246 | { "SYSASSERT", 0x35 }, | |
1247 | { "UCODE_VERSION_MISMATCH", 0x37 }, | |
1248 | { "BAD_COMMAND", 0x38 }, | |
1249 | { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, | |
1250 | { "FATAL_ERROR", 0x3D }, | |
1251 | { "NMI_TRM_HW_ERR", 0x46 }, | |
1252 | { "NMI_INTERRUPT_TRM", 0x4C }, | |
1253 | { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, | |
1254 | { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, | |
1255 | { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, | |
1256 | { "NMI_INTERRUPT_HOST", 0x66 }, | |
1257 | { "NMI_INTERRUPT_ACTION_PT", 0x7C }, | |
1258 | { "NMI_INTERRUPT_UNKNOWN", 0x84 }, | |
1259 | { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, | |
1260 | { "ADVANCED_SYSASSERT", 0 }, | |
1261 | }; | |
1262 | ||
1263 | static const char *desc_lookup(u32 num) | |
b7a79404 | 1264 | { |
4b58645c JS |
1265 | int i; |
1266 | int max = ARRAY_SIZE(desc_lookup_text); | |
b7a79404 | 1267 | |
4b58645c JS |
1268 | if (num < max) |
1269 | return desc_lookup_text[num]; | |
b7a79404 | 1270 | |
4b58645c JS |
1271 | max = ARRAY_SIZE(advanced_lookup) - 1; |
1272 | for (i = 0; i < max; i++) { | |
1273 | if (advanced_lookup[i].num == num) | |
6eab04a8 | 1274 | break; |
4b58645c JS |
1275 | } |
1276 | return advanced_lookup[i].name; | |
b7a79404 RC |
1277 | } |
1278 | ||
1279 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1280 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1281 | ||
1282 | void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1283 | { | |
50650547 | 1284 | u32 base; |
e46f6538 | 1285 | struct iwl_error_event_table table; |
b7a79404 | 1286 | |
d7d5783c | 1287 | base = priv->device_pointers.error_event_table; |
872907bb | 1288 | if (priv->ucode_type == IWL_UCODE_INIT) { |
b2e640d4 | 1289 | if (!base) |
898ed67b | 1290 | base = priv->init_errlog_ptr; |
b2e640d4 | 1291 | } else { |
b2e640d4 | 1292 | if (!base) |
898ed67b | 1293 | base = priv->inst_errlog_ptr; |
b2e640d4 | 1294 | } |
b7a79404 | 1295 | |
4caab328 | 1296 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { |
212fb575 WYG |
1297 | IWL_ERR(priv, |
1298 | "Not valid error log pointer 0x%08X for %s uCode\n", | |
ca7966c8 | 1299 | base, |
872907bb | 1300 | (priv->ucode_type == IWL_UCODE_INIT) |
ca7966c8 | 1301 | ? "Init" : "RT"); |
b7a79404 RC |
1302 | return; |
1303 | } | |
1304 | ||
e46f6538 JB |
1305 | iwl_read_targ_mem_words(priv, base, &table, sizeof(table)); |
1306 | ||
50650547 | 1307 | if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { |
b7a79404 RC |
1308 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
1309 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
50650547 | 1310 | priv->status, table.valid); |
b7a79404 RC |
1311 | } |
1312 | ||
50650547 WYG |
1313 | priv->isr_stats.err_code = table.error_id; |
1314 | ||
1315 | trace_iwlwifi_dev_ucode_error(priv, table.error_id, table.tsf_low, | |
1316 | table.data1, table.data2, table.line, | |
1317 | table.blink1, table.blink2, table.ilink1, | |
1318 | table.ilink2, table.bcon_time, table.gp1, | |
1319 | table.gp2, table.gp3, table.ucode_ver, | |
1320 | table.hw_ver, table.brd_ver); | |
1321 | IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id, | |
1322 | desc_lookup(table.error_id)); | |
1323 | IWL_ERR(priv, "0x%08X | uPc\n", table.pc); | |
1324 | IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1); | |
1325 | IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2); | |
1326 | IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1); | |
1327 | IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2); | |
1328 | IWL_ERR(priv, "0x%08X | data1\n", table.data1); | |
1329 | IWL_ERR(priv, "0x%08X | data2\n", table.data2); | |
1330 | IWL_ERR(priv, "0x%08X | line\n", table.line); | |
1331 | IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time); | |
1332 | IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low); | |
1333 | IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi); | |
1334 | IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1); | |
1335 | IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2); | |
1336 | IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3); | |
1337 | IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver); | |
1338 | IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver); | |
1339 | IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver); | |
1340 | IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd); | |
b7a79404 RC |
1341 | } |
1342 | ||
1343 | #define EVENT_START_OFFSET (4 * sizeof(u32)) | |
1344 | ||
1345 | /** | |
1346 | * iwl_print_event_log - Dump error event log to syslog | |
1347 | * | |
1348 | */ | |
b03d7d0f WYG |
1349 | static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
1350 | u32 num_events, u32 mode, | |
1351 | int pos, char **buf, size_t bufsz) | |
b7a79404 RC |
1352 | { |
1353 | u32 i; | |
1354 | u32 base; /* SRAM byte address of event log header */ | |
1355 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1356 | u32 ptr; /* SRAM byte address of log data */ | |
1357 | u32 ev, time, data; /* event log data */ | |
e5854471 | 1358 | unsigned long reg_flags; |
b7a79404 RC |
1359 | |
1360 | if (num_events == 0) | |
b03d7d0f | 1361 | return pos; |
b2e640d4 | 1362 | |
d7d5783c | 1363 | base = priv->device_pointers.log_event_table; |
872907bb | 1364 | if (priv->ucode_type == IWL_UCODE_INIT) { |
b2e640d4 | 1365 | if (!base) |
898ed67b | 1366 | base = priv->init_evtlog_ptr; |
b2e640d4 | 1367 | } else { |
b2e640d4 | 1368 | if (!base) |
898ed67b | 1369 | base = priv->inst_evtlog_ptr; |
b2e640d4 | 1370 | } |
b7a79404 RC |
1371 | |
1372 | if (mode == 0) | |
1373 | event_size = 2 * sizeof(u32); | |
1374 | else | |
1375 | event_size = 3 * sizeof(u32); | |
1376 | ||
1377 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1378 | ||
e5854471 BC |
1379 | /* Make sure device is powered up for SRAM reads */ |
1380 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
1381 | iwl_grab_nic_access(priv); | |
1382 | ||
1383 | /* Set starting address; reads will auto-increment */ | |
02a7fa00 | 1384 | iwl_write32(priv, HBUS_TARG_MEM_RADDR, ptr); |
e5854471 BC |
1385 | rmb(); |
1386 | ||
b7a79404 RC |
1387 | /* "time" is actually "data" for mode 0 (no timestamp). |
1388 | * place event id # at far right for easier visual parsing. */ | |
1389 | for (i = 0; i < num_events; i++) { | |
02a7fa00 JB |
1390 | ev = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
1391 | time = iwl_read32(priv, HBUS_TARG_MEM_RDAT); | |
b7a79404 RC |
1392 | if (mode == 0) { |
1393 | /* data, ev */ | |
b03d7d0f WYG |
1394 | if (bufsz) { |
1395 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1396 | "EVT_LOG:0x%08x:%04u\n", | |
1397 | time, ev); | |
1398 | } else { | |
1399 | trace_iwlwifi_dev_ucode_event(priv, 0, | |
1400 | time, ev); | |
1401 | IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", | |
1402 | time, ev); | |
1403 | } | |
b7a79404 | 1404 | } else { |
02a7fa00 | 1405 | data = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
b03d7d0f WYG |
1406 | if (bufsz) { |
1407 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1408 | "EVT_LOGT:%010u:0x%08x:%04u\n", | |
1409 | time, data, ev); | |
1410 | } else { | |
1411 | IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", | |
b7a79404 | 1412 | time, data, ev); |
b03d7d0f WYG |
1413 | trace_iwlwifi_dev_ucode_event(priv, time, |
1414 | data, ev); | |
1415 | } | |
b7a79404 RC |
1416 | } |
1417 | } | |
e5854471 BC |
1418 | |
1419 | /* Allow device to power down */ | |
1420 | iwl_release_nic_access(priv); | |
1421 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
b03d7d0f | 1422 | return pos; |
b7a79404 RC |
1423 | } |
1424 | ||
c341ddb2 WYG |
1425 | /** |
1426 | * iwl_print_last_event_logs - Dump the newest # of event log to syslog | |
1427 | */ | |
b03d7d0f WYG |
1428 | static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity, |
1429 | u32 num_wraps, u32 next_entry, | |
1430 | u32 size, u32 mode, | |
1431 | int pos, char **buf, size_t bufsz) | |
c341ddb2 WYG |
1432 | { |
1433 | /* | |
1434 | * display the newest DEFAULT_LOG_ENTRIES entries | |
1435 | * i.e the entries just before the next ont that uCode would fill. | |
1436 | */ | |
1437 | if (num_wraps) { | |
1438 | if (next_entry < size) { | |
b03d7d0f WYG |
1439 | pos = iwl_print_event_log(priv, |
1440 | capacity - (size - next_entry), | |
1441 | size - next_entry, mode, | |
1442 | pos, buf, bufsz); | |
1443 | pos = iwl_print_event_log(priv, 0, | |
1444 | next_entry, mode, | |
1445 | pos, buf, bufsz); | |
c341ddb2 | 1446 | } else |
b03d7d0f WYG |
1447 | pos = iwl_print_event_log(priv, next_entry - size, |
1448 | size, mode, pos, buf, bufsz); | |
c341ddb2 | 1449 | } else { |
b03d7d0f WYG |
1450 | if (next_entry < size) { |
1451 | pos = iwl_print_event_log(priv, 0, next_entry, | |
1452 | mode, pos, buf, bufsz); | |
1453 | } else { | |
1454 | pos = iwl_print_event_log(priv, next_entry - size, | |
1455 | size, mode, pos, buf, bufsz); | |
1456 | } | |
c341ddb2 | 1457 | } |
b03d7d0f | 1458 | return pos; |
c341ddb2 WYG |
1459 | } |
1460 | ||
c341ddb2 WYG |
1461 | #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20) |
1462 | ||
b03d7d0f WYG |
1463 | int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, |
1464 | char **buf, bool display) | |
b7a79404 RC |
1465 | { |
1466 | u32 base; /* SRAM byte address of event log header */ | |
1467 | u32 capacity; /* event log capacity in # entries */ | |
1468 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1469 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1470 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1471 | u32 size; /* # entries that we'll print */ | |
b2e640d4 | 1472 | u32 logsize; |
b03d7d0f WYG |
1473 | int pos = 0; |
1474 | size_t bufsz = 0; | |
b7a79404 | 1475 | |
d7d5783c | 1476 | base = priv->device_pointers.log_event_table; |
872907bb | 1477 | if (priv->ucode_type == IWL_UCODE_INIT) { |
898ed67b | 1478 | logsize = priv->init_evtlog_size; |
b2e640d4 | 1479 | if (!base) |
898ed67b | 1480 | base = priv->init_evtlog_ptr; |
b2e640d4 | 1481 | } else { |
898ed67b | 1482 | logsize = priv->inst_evtlog_size; |
b2e640d4 | 1483 | if (!base) |
898ed67b | 1484 | base = priv->inst_evtlog_ptr; |
b2e640d4 | 1485 | } |
b7a79404 | 1486 | |
4caab328 | 1487 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { |
212fb575 WYG |
1488 | IWL_ERR(priv, |
1489 | "Invalid event log pointer 0x%08X for %s uCode\n", | |
ca7966c8 | 1490 | base, |
872907bb | 1491 | (priv->ucode_type == IWL_UCODE_INIT) |
ca7966c8 | 1492 | ? "Init" : "RT"); |
937c397e | 1493 | return -EINVAL; |
b7a79404 RC |
1494 | } |
1495 | ||
1496 | /* event log header */ | |
1497 | capacity = iwl_read_targ_mem(priv, base); | |
1498 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1499 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1500 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
1501 | ||
b2e640d4 | 1502 | if (capacity > logsize) { |
84c40692 | 1503 | IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n", |
b2e640d4 JB |
1504 | capacity, logsize); |
1505 | capacity = logsize; | |
84c40692 BC |
1506 | } |
1507 | ||
b2e640d4 | 1508 | if (next_entry > logsize) { |
84c40692 | 1509 | IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", |
b2e640d4 JB |
1510 | next_entry, logsize); |
1511 | next_entry = logsize; | |
84c40692 BC |
1512 | } |
1513 | ||
b7a79404 RC |
1514 | size = num_wraps ? capacity : next_entry; |
1515 | ||
1516 | /* bail out if nothing in log */ | |
1517 | if (size == 0) { | |
1518 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); | |
b03d7d0f | 1519 | return pos; |
b7a79404 RC |
1520 | } |
1521 | ||
9f28ebc3 | 1522 | /* enable/disable bt channel inhibition */ |
f37837c9 WYG |
1523 | priv->bt_ch_announce = iwlagn_bt_ch_announce; |
1524 | ||
c341ddb2 | 1525 | #ifdef CONFIG_IWLWIFI_DEBUG |
521d9bce | 1526 | if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) |
c341ddb2 WYG |
1527 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) |
1528 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
1529 | #else | |
1530 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) | |
1531 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
1532 | #endif | |
1533 | IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", | |
1534 | size); | |
b7a79404 | 1535 | |
c341ddb2 | 1536 | #ifdef CONFIG_IWLWIFI_DEBUG |
b03d7d0f WYG |
1537 | if (display) { |
1538 | if (full_log) | |
1539 | bufsz = capacity * 48; | |
1540 | else | |
1541 | bufsz = size * 48; | |
1542 | *buf = kmalloc(bufsz, GFP_KERNEL); | |
1543 | if (!*buf) | |
937c397e | 1544 | return -ENOMEM; |
b03d7d0f | 1545 | } |
c341ddb2 WYG |
1546 | if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) { |
1547 | /* | |
1548 | * if uCode has wrapped back to top of log, | |
1549 | * start at the oldest entry, | |
1550 | * i.e the next one that uCode would fill. | |
1551 | */ | |
1552 | if (num_wraps) | |
b03d7d0f WYG |
1553 | pos = iwl_print_event_log(priv, next_entry, |
1554 | capacity - next_entry, mode, | |
1555 | pos, buf, bufsz); | |
c341ddb2 | 1556 | /* (then/else) start at top of log */ |
b03d7d0f WYG |
1557 | pos = iwl_print_event_log(priv, 0, |
1558 | next_entry, mode, pos, buf, bufsz); | |
c341ddb2 | 1559 | } else |
b03d7d0f WYG |
1560 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, |
1561 | next_entry, size, mode, | |
1562 | pos, buf, bufsz); | |
c341ddb2 | 1563 | #else |
b03d7d0f WYG |
1564 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, |
1565 | next_entry, size, mode, | |
1566 | pos, buf, bufsz); | |
b7a79404 | 1567 | #endif |
b03d7d0f | 1568 | return pos; |
c341ddb2 | 1569 | } |
b7a79404 | 1570 | |
0975cc8f WYG |
1571 | static void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
1572 | { | |
1573 | struct iwl_ct_kill_config cmd; | |
1574 | struct iwl_ct_kill_throttling_config adv_cmd; | |
1575 | unsigned long flags; | |
1576 | int ret = 0; | |
1577 | ||
1578 | spin_lock_irqsave(&priv->lock, flags); | |
1579 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
1580 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); | |
1581 | spin_unlock_irqrestore(&priv->lock, flags); | |
1582 | priv->thermal_throttle.ct_kill_toggle = false; | |
1583 | ||
7cb1b088 | 1584 | if (priv->cfg->base_params->support_ct_kill_exit) { |
0975cc8f WYG |
1585 | adv_cmd.critical_temperature_enter = |
1586 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
1587 | adv_cmd.critical_temperature_exit = | |
1588 | cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); | |
1589 | ||
41c50542 | 1590 | ret = trans_send_cmd_pdu(&priv->trans, |
e419d62d EG |
1591 | REPLY_CT_KILL_CONFIG_CMD, |
1592 | CMD_SYNC, sizeof(adv_cmd), &adv_cmd); | |
0975cc8f WYG |
1593 | if (ret) |
1594 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
1595 | else | |
1596 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
1597 | "succeeded, " | |
1598 | "critical temperature enter is %d," | |
1599 | "exit is %d\n", | |
1600 | priv->hw_params.ct_kill_threshold, | |
1601 | priv->hw_params.ct_kill_exit_threshold); | |
1602 | } else { | |
1603 | cmd.critical_temperature_R = | |
1604 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
1605 | ||
41c50542 | 1606 | ret = trans_send_cmd_pdu(&priv->trans, |
e419d62d EG |
1607 | REPLY_CT_KILL_CONFIG_CMD, |
1608 | CMD_SYNC, sizeof(cmd), &cmd); | |
0975cc8f WYG |
1609 | if (ret) |
1610 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
1611 | else | |
1612 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
1613 | "succeeded, " | |
1614 | "critical temperature is %d\n", | |
1615 | priv->hw_params.ct_kill_threshold); | |
1616 | } | |
1617 | } | |
1618 | ||
6d6a1afd SZ |
1619 | static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) |
1620 | { | |
1621 | struct iwl_calib_cfg_cmd calib_cfg_cmd; | |
1622 | struct iwl_host_cmd cmd = { | |
1623 | .id = CALIBRATION_CFG_CMD, | |
3fa50738 JB |
1624 | .len = { sizeof(struct iwl_calib_cfg_cmd), }, |
1625 | .data = { &calib_cfg_cmd, }, | |
6d6a1afd SZ |
1626 | }; |
1627 | ||
1628 | memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); | |
1629 | calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; | |
7cb1b088 | 1630 | calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); |
6d6a1afd | 1631 | |
41c50542 | 1632 | return trans_send_cmd(&priv->trans, &cmd); |
6d6a1afd SZ |
1633 | } |
1634 | ||
1635 | ||
e505c433 WYG |
1636 | static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) |
1637 | { | |
1638 | struct iwl_tx_ant_config_cmd tx_ant_cmd = { | |
1639 | .valid = cpu_to_le32(valid_tx_ant), | |
1640 | }; | |
1641 | ||
1642 | if (IWL_UCODE_API(priv->ucode_ver) > 1) { | |
1643 | IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); | |
41c50542 | 1644 | return trans_send_cmd_pdu(&priv->trans, |
e505c433 WYG |
1645 | TX_ANT_CONFIGURATION_CMD, |
1646 | CMD_SYNC, | |
1647 | sizeof(struct iwl_tx_ant_config_cmd), | |
1648 | &tx_ant_cmd); | |
1649 | } else { | |
1650 | IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); | |
1651 | return -EOPNOTSUPP; | |
1652 | } | |
1653 | } | |
1654 | ||
b481de9c | 1655 | /** |
4a4a9e81 | 1656 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 1657 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 1658 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 1659 | */ |
4613e72d | 1660 | int iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 1661 | { |
57aab75a | 1662 | int ret = 0; |
246ed355 | 1663 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
b481de9c | 1664 | |
1a361cd8 | 1665 | /*TODO: this should go to the transport layer */ |
ca7966c8 | 1666 | iwl_reset_ict(priv); |
b481de9c | 1667 | |
ca7966c8 | 1668 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
6d6a1afd | 1669 | |
5b9f8cd3 | 1670 | /* After the ALIVE response, we can send host commands to the uCode */ |
b481de9c ZY |
1671 | set_bit(STATUS_ALIVE, &priv->status); |
1672 | ||
22de94de SG |
1673 | /* Enable watchdog to monitor the driver tx queues */ |
1674 | iwl_setup_watchdog(priv); | |
b74e31a9 | 1675 | |
fee1247a | 1676 | if (iwl_is_rfkill(priv)) |
ca7966c8 | 1677 | return -ERFKILL; |
b481de9c | 1678 | |
bc795df1 | 1679 | /* download priority table before any calibration request */ |
7cb1b088 WYG |
1680 | if (priv->cfg->bt_params && |
1681 | priv->cfg->bt_params->advanced_bt_coexist) { | |
f7322f8f | 1682 | /* Configure Bluetooth device coexistence support */ |
207ecc5e MV |
1683 | if (priv->cfg->bt_params->bt_sco_disable) |
1684 | priv->bt_enable_pspoll = false; | |
1685 | else | |
1686 | priv->bt_enable_pspoll = true; | |
1687 | ||
f7322f8f WYG |
1688 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
1689 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; | |
1690 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
e55b517c | 1691 | iwlagn_send_advance_bt_config(priv); |
f7322f8f | 1692 | priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; |
207ecc5e MV |
1693 | priv->cur_rssi_ctx = NULL; |
1694 | ||
a5901cbb | 1695 | iwlagn_send_prio_tbl(priv); |
f7322f8f WYG |
1696 | |
1697 | /* FIXME: w/a to force change uCode BT state machine */ | |
ca7966c8 JB |
1698 | ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, |
1699 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); | |
1700 | if (ret) | |
1701 | return ret; | |
1702 | ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE, | |
1703 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); | |
1704 | if (ret) | |
1705 | return ret; | |
e55b517c WYG |
1706 | } else { |
1707 | /* | |
1708 | * default is 2-wire BT coexexistence support | |
1709 | */ | |
1710 | iwl_send_bt_config(priv); | |
f7322f8f | 1711 | } |
e55b517c | 1712 | |
bc795df1 WYG |
1713 | if (priv->hw_params.calib_rt_cfg) |
1714 | iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg); | |
1715 | ||
36d6825b | 1716 | ieee80211_wake_queues(priv->hw); |
b481de9c | 1717 | |
470ab2dd | 1718 | priv->active_rate = IWL_RATES_MASK; |
b481de9c | 1719 | |
2f748dec | 1720 | /* Configure Tx antenna selection based on H/W config */ |
e3f10cea | 1721 | iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); |
2f748dec | 1722 | |
c8ac61cf | 1723 | if (iwl_is_associated_ctx(ctx) && !priv->wowlan) { |
c1adf9fb | 1724 | struct iwl_rxon_cmd *active_rxon = |
246ed355 | 1725 | (struct iwl_rxon_cmd *)&ctx->active; |
019fb97d | 1726 | /* apply any changes in staging */ |
246ed355 | 1727 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c ZY |
1728 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
1729 | } else { | |
d0fe478c | 1730 | struct iwl_rxon_context *tmp; |
b481de9c | 1731 | /* Initialize our rx_config data */ |
d0fe478c JB |
1732 | for_each_context(priv, tmp) |
1733 | iwl_connection_init_rx_config(priv, tmp); | |
45823531 | 1734 | |
e3f10cea | 1735 | iwlagn_set_rxon_chain(priv, ctx); |
b481de9c ZY |
1736 | } |
1737 | ||
c8ac61cf JB |
1738 | if (!priv->wowlan) { |
1739 | /* WoWLAN ucode will not reply in the same way, skip it */ | |
1740 | iwl_reset_run_time_calib(priv); | |
1741 | } | |
4a4a9e81 | 1742 | |
9e2e7422 WYG |
1743 | set_bit(STATUS_READY, &priv->status); |
1744 | ||
b481de9c | 1745 | /* Configure the adapter for unassociated operation */ |
805a3b81 | 1746 | ret = iwlagn_commit_rxon(priv, ctx); |
ca7966c8 JB |
1747 | if (ret) |
1748 | return ret; | |
b481de9c ZY |
1749 | |
1750 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 1751 | iwl_rf_kill_ct_config(priv); |
5a66926a | 1752 | |
e1623446 | 1753 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
c46fbefa | 1754 | |
ca7966c8 | 1755 | return iwl_power_update_mode(priv, true); |
b481de9c ZY |
1756 | } |
1757 | ||
4e39317d | 1758 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 1759 | |
5b9f8cd3 | 1760 | static void __iwl_down(struct iwl_priv *priv) |
b481de9c | 1761 | { |
22dd2fd2 | 1762 | int exit_pending; |
b481de9c | 1763 | |
e1623446 | 1764 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c | 1765 | |
d745d472 SG |
1766 | iwl_scan_cancel_timeout(priv, 200); |
1767 | ||
1768 | exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c | 1769 | |
b62177a0 SG |
1770 | /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set |
1771 | * to prevent rearm timer */ | |
22de94de | 1772 | del_timer_sync(&priv->watchdog); |
b62177a0 | 1773 | |
dcef732c | 1774 | iwl_clear_ucode_stations(priv, NULL); |
a194e324 | 1775 | iwl_dealloc_bcast_stations(priv); |
db125c78 | 1776 | iwl_clear_driver_stations(priv); |
b481de9c | 1777 | |
a1174138 | 1778 | /* reset BT coex data */ |
da5dbb97 | 1779 | priv->bt_status = 0; |
207ecc5e MV |
1780 | priv->cur_rssi_ctx = NULL; |
1781 | priv->bt_is_sco = 0; | |
7cb1b088 WYG |
1782 | if (priv->cfg->bt_params) |
1783 | priv->bt_traffic_load = | |
1784 | priv->cfg->bt_params->bt_init_traffic_load; | |
1785 | else | |
1786 | priv->bt_traffic_load = 0; | |
bee008b7 WYG |
1787 | priv->bt_full_concurrent = false; |
1788 | priv->bt_ci_compliance = 0; | |
a1174138 | 1789 | |
b481de9c ZY |
1790 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
1791 | * exiting the module */ | |
1792 | if (!exit_pending) | |
1793 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
1794 | ||
b481de9c ZY |
1795 | if (priv->mac80211_registered) |
1796 | ieee80211_stop_queues(priv->hw); | |
1797 | ||
1a10f433 | 1798 | /* Clear out all status bits but a few that are stable across reset */ |
b481de9c ZY |
1799 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
1800 | STATUS_RF_KILL_HW | | |
9788864e RC |
1801 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
1802 | STATUS_GEO_CONFIGURED | | |
b481de9c | 1803 | test_bit(STATUS_FW_ERROR, &priv->status) << |
052ec3f1 MA |
1804 | STATUS_FW_ERROR | |
1805 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
1806 | STATUS_EXIT_PENDING; | |
b481de9c | 1807 | |
41c50542 | 1808 | trans_stop_device(&priv->trans); |
4d2ccdb9 | 1809 | |
77834543 | 1810 | dev_kfree_skb(priv->beacon_skb); |
12e934dc | 1811 | priv->beacon_skb = NULL; |
b481de9c ZY |
1812 | } |
1813 | ||
5b9f8cd3 | 1814 | static void iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
1815 | { |
1816 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 1817 | __iwl_down(priv); |
b481de9c | 1818 | mutex_unlock(&priv->mutex); |
b24d22b1 | 1819 | |
4e39317d | 1820 | iwl_cancel_deferred_work(priv); |
b481de9c ZY |
1821 | } |
1822 | ||
1823 | #define MAX_HW_RESTARTS 5 | |
1824 | ||
5b9f8cd3 | 1825 | static int __iwl_up(struct iwl_priv *priv) |
b481de9c | 1826 | { |
a194e324 | 1827 | struct iwl_rxon_context *ctx; |
57aab75a | 1828 | int ret; |
b481de9c | 1829 | |
ca7966c8 JB |
1830 | lockdep_assert_held(&priv->mutex); |
1831 | ||
b481de9c | 1832 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
39aadf8c | 1833 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
b481de9c ZY |
1834 | return -EIO; |
1835 | } | |
1836 | ||
a194e324 | 1837 | for_each_context(priv, ctx) { |
a30e3112 | 1838 | ret = iwlagn_alloc_bcast_station(priv, ctx); |
a194e324 JB |
1839 | if (ret) { |
1840 | iwl_dealloc_bcast_stations(priv); | |
1841 | return ret; | |
1842 | } | |
1843 | } | |
2c810ccd | 1844 | |
ca7966c8 JB |
1845 | ret = iwlagn_run_init_ucode(priv); |
1846 | if (ret) { | |
1847 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
1848 | goto error; | |
1849 | } | |
b481de9c | 1850 | |
ca7966c8 | 1851 | ret = iwlagn_load_ucode_wait_alive(priv, |
dbf28e21 | 1852 | &priv->ucode_rt, |
872907bb | 1853 | IWL_UCODE_REGULAR); |
ca7966c8 JB |
1854 | if (ret) { |
1855 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
1856 | goto error; | |
b481de9c ZY |
1857 | } |
1858 | ||
ca7966c8 JB |
1859 | ret = iwl_alive_start(priv); |
1860 | if (ret) | |
1861 | goto error; | |
1862 | return 0; | |
1863 | ||
1864 | error: | |
b481de9c | 1865 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
5b9f8cd3 | 1866 | __iwl_down(priv); |
64e72c3e | 1867 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c | 1868 | |
ca7966c8 JB |
1869 | IWL_ERR(priv, "Unable to initialize device.\n"); |
1870 | return ret; | |
b481de9c ZY |
1871 | } |
1872 | ||
1873 | ||
1874 | /***************************************************************************** | |
1875 | * | |
1876 | * Workqueue callbacks | |
1877 | * | |
1878 | *****************************************************************************/ | |
1879 | ||
16e727e8 EG |
1880 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
1881 | { | |
1882 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
1883 | run_time_calib_work); | |
1884 | ||
1885 | mutex_lock(&priv->mutex); | |
1886 | ||
1887 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
1888 | test_bit(STATUS_SCANNING, &priv->status)) { | |
1889 | mutex_unlock(&priv->mutex); | |
1890 | return; | |
1891 | } | |
1892 | ||
1893 | if (priv->start_calib) { | |
0da0e5bf JB |
1894 | iwl_chain_noise_calibration(priv); |
1895 | iwl_sensitivity_calibration(priv); | |
16e727e8 EG |
1896 | } |
1897 | ||
1898 | mutex_unlock(&priv->mutex); | |
16e727e8 EG |
1899 | } |
1900 | ||
e43e85c4 JB |
1901 | static void iwlagn_prepare_restart(struct iwl_priv *priv) |
1902 | { | |
1903 | struct iwl_rxon_context *ctx; | |
1904 | bool bt_full_concurrent; | |
1905 | u8 bt_ci_compliance; | |
1906 | u8 bt_load; | |
1907 | u8 bt_status; | |
207ecc5e | 1908 | bool bt_is_sco; |
e43e85c4 JB |
1909 | |
1910 | lockdep_assert_held(&priv->mutex); | |
1911 | ||
1912 | for_each_context(priv, ctx) | |
1913 | ctx->vif = NULL; | |
1914 | priv->is_open = 0; | |
1915 | ||
1916 | /* | |
1917 | * __iwl_down() will clear the BT status variables, | |
1918 | * which is correct, but when we restart we really | |
1919 | * want to keep them so restore them afterwards. | |
1920 | * | |
1921 | * The restart process will later pick them up and | |
1922 | * re-configure the hw when we reconfigure the BT | |
1923 | * command. | |
1924 | */ | |
1925 | bt_full_concurrent = priv->bt_full_concurrent; | |
1926 | bt_ci_compliance = priv->bt_ci_compliance; | |
1927 | bt_load = priv->bt_traffic_load; | |
1928 | bt_status = priv->bt_status; | |
207ecc5e | 1929 | bt_is_sco = priv->bt_is_sco; |
e43e85c4 JB |
1930 | |
1931 | __iwl_down(priv); | |
1932 | ||
1933 | priv->bt_full_concurrent = bt_full_concurrent; | |
1934 | priv->bt_ci_compliance = bt_ci_compliance; | |
1935 | priv->bt_traffic_load = bt_load; | |
1936 | priv->bt_status = bt_status; | |
207ecc5e | 1937 | priv->bt_is_sco = bt_is_sco; |
e43e85c4 JB |
1938 | } |
1939 | ||
5b9f8cd3 | 1940 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 1941 | { |
c79dd5b5 | 1942 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
1943 | |
1944 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1945 | return; | |
1946 | ||
19cc1087 JB |
1947 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
1948 | mutex_lock(&priv->mutex); | |
e43e85c4 | 1949 | iwlagn_prepare_restart(priv); |
19cc1087 | 1950 | mutex_unlock(&priv->mutex); |
a1174138 | 1951 | iwl_cancel_deferred_work(priv); |
19cc1087 JB |
1952 | ieee80211_restart_hw(priv->hw); |
1953 | } else { | |
ca7966c8 | 1954 | WARN_ON(1); |
19cc1087 | 1955 | } |
b481de9c ZY |
1956 | } |
1957 | ||
266af4c7 JB |
1958 | static int iwl_mac_offchannel_tx(struct ieee80211_hw *hw, struct sk_buff *skb, |
1959 | struct ieee80211_channel *chan, | |
1960 | enum nl80211_channel_type channel_type, | |
1961 | unsigned int wait) | |
1962 | { | |
1963 | struct iwl_priv *priv = hw->priv; | |
1964 | int ret; | |
1965 | ||
1966 | /* Not supported if we don't have PAN */ | |
1967 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) { | |
1968 | ret = -EOPNOTSUPP; | |
1969 | goto free; | |
1970 | } | |
1971 | ||
1972 | /* Not supported on pre-P2P firmware */ | |
1973 | if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes & | |
1974 | BIT(NL80211_IFTYPE_P2P_CLIENT))) { | |
1975 | ret = -EOPNOTSUPP; | |
1976 | goto free; | |
1977 | } | |
1978 | ||
1979 | mutex_lock(&priv->mutex); | |
1980 | ||
1981 | if (!priv->contexts[IWL_RXON_CTX_PAN].is_active) { | |
1982 | /* | |
1983 | * If the PAN context is free, use the normal | |
1984 | * way of doing remain-on-channel offload + TX. | |
1985 | */ | |
1986 | ret = 1; | |
1987 | goto out; | |
1988 | } | |
1989 | ||
1990 | /* TODO: queue up if scanning? */ | |
1991 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
898ed67b | 1992 | priv->offchan_tx_skb) { |
266af4c7 JB |
1993 | ret = -EBUSY; |
1994 | goto out; | |
1995 | } | |
1996 | ||
1997 | /* | |
1998 | * max_scan_ie_len doesn't include the blank SSID or the header, | |
1999 | * so need to add that again here. | |
2000 | */ | |
2001 | if (skb->len > hw->wiphy->max_scan_ie_len + 24 + 2) { | |
2002 | ret = -ENOBUFS; | |
2003 | goto out; | |
2004 | } | |
2005 | ||
898ed67b WYG |
2006 | priv->offchan_tx_skb = skb; |
2007 | priv->offchan_tx_timeout = wait; | |
2008 | priv->offchan_tx_chan = chan; | |
266af4c7 JB |
2009 | |
2010 | ret = iwl_scan_initiate(priv, priv->contexts[IWL_RXON_CTX_PAN].vif, | |
2011 | IWL_SCAN_OFFCH_TX, chan->band); | |
2012 | if (ret) | |
898ed67b | 2013 | priv->offchan_tx_skb = NULL; |
266af4c7 JB |
2014 | out: |
2015 | mutex_unlock(&priv->mutex); | |
2016 | free: | |
2017 | if (ret < 0) | |
2018 | kfree_skb(skb); | |
2019 | ||
2020 | return ret; | |
2021 | } | |
2022 | ||
2023 | static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw *hw) | |
2024 | { | |
2025 | struct iwl_priv *priv = hw->priv; | |
2026 | int ret; | |
2027 | ||
2028 | mutex_lock(&priv->mutex); | |
2029 | ||
898ed67b | 2030 | if (!priv->offchan_tx_skb) { |
f8a22a2b DC |
2031 | ret = -EINVAL; |
2032 | goto unlock; | |
2033 | } | |
266af4c7 | 2034 | |
898ed67b | 2035 | priv->offchan_tx_skb = NULL; |
266af4c7 JB |
2036 | |
2037 | ret = iwl_scan_cancel_timeout(priv, 200); | |
2038 | if (ret) | |
2039 | ret = -EIO; | |
f8a22a2b | 2040 | unlock: |
266af4c7 JB |
2041 | mutex_unlock(&priv->mutex); |
2042 | ||
2043 | return ret; | |
2044 | } | |
2045 | ||
b481de9c ZY |
2046 | /***************************************************************************** |
2047 | * | |
2048 | * mac80211 entry point functions | |
2049 | * | |
2050 | *****************************************************************************/ | |
2051 | ||
0fd09502 JB |
2052 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { |
2053 | { | |
2054 | .max = 1, | |
2055 | .types = BIT(NL80211_IFTYPE_STATION), | |
2056 | }, | |
2057 | { | |
2058 | .max = 1, | |
2059 | .types = BIT(NL80211_IFTYPE_AP), | |
2060 | }, | |
2061 | }; | |
2062 | ||
2063 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
2064 | { | |
2065 | .max = 2, | |
2066 | .types = BIT(NL80211_IFTYPE_STATION), | |
2067 | }, | |
2068 | }; | |
2069 | ||
2070 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
2071 | { | |
2072 | .max = 1, | |
2073 | .types = BIT(NL80211_IFTYPE_STATION), | |
2074 | }, | |
2075 | { | |
2076 | .max = 1, | |
2077 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
2078 | BIT(NL80211_IFTYPE_AP), | |
2079 | }, | |
2080 | }; | |
2081 | ||
2082 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
2083 | { | |
2084 | .max = 2, | |
2085 | .types = BIT(NL80211_IFTYPE_STATION), | |
2086 | }, | |
2087 | { | |
2088 | .max = 1, | |
2089 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
2090 | }, | |
2091 | }; | |
2092 | ||
2093 | static const struct ieee80211_iface_combination | |
2094 | iwlagn_iface_combinations_dualmode[] = { | |
2095 | { .num_different_channels = 1, | |
2096 | .max_interfaces = 2, | |
2097 | .beacon_int_infra_match = true, | |
2098 | .limits = iwlagn_sta_ap_limits, | |
2099 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
2100 | }, | |
2101 | { .num_different_channels = 1, | |
2102 | .max_interfaces = 2, | |
2103 | .limits = iwlagn_2sta_limits, | |
2104 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
2105 | }, | |
2106 | }; | |
2107 | ||
2108 | static const struct ieee80211_iface_combination | |
2109 | iwlagn_iface_combinations_p2p[] = { | |
2110 | { .num_different_channels = 1, | |
2111 | .max_interfaces = 2, | |
2112 | .beacon_int_infra_match = true, | |
2113 | .limits = iwlagn_p2p_sta_go_limits, | |
2114 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
2115 | }, | |
2116 | { .num_different_channels = 1, | |
2117 | .max_interfaces = 2, | |
2118 | .limits = iwlagn_p2p_2sta_limits, | |
2119 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
2120 | }, | |
2121 | }; | |
2122 | ||
f0b6e2e8 RC |
2123 | /* |
2124 | * Not a mac80211 entry point function, but it fits in with all the | |
2125 | * other mac80211 functions grouped here. | |
2126 | */ | |
dd7a2509 JB |
2127 | static int iwl_mac_setup_register(struct iwl_priv *priv, |
2128 | struct iwlagn_ucode_capabilities *capa) | |
f0b6e2e8 RC |
2129 | { |
2130 | int ret; | |
2131 | struct ieee80211_hw *hw = priv->hw; | |
d0fe478c JB |
2132 | struct iwl_rxon_context *ctx; |
2133 | ||
f0b6e2e8 RC |
2134 | hw->rate_control_algorithm = "iwl-agn-rs"; |
2135 | ||
2136 | /* Tell mac80211 our characteristics */ | |
2137 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
f0b6e2e8 | 2138 | IEEE80211_HW_AMPDU_AGGREGATION | |
2491fa42 | 2139 | IEEE80211_HW_NEED_DTIM_PERIOD | |
6fb5511a JB |
2140 | IEEE80211_HW_SPECTRUM_MGMT | |
2141 | IEEE80211_HW_REPORTS_TX_ACK_STATUS; | |
f0b6e2e8 | 2142 | |
9b768832 JB |
2143 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; |
2144 | ||
23c0fcc6 WYG |
2145 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | |
2146 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
f0b6e2e8 | 2147 | |
88950758 | 2148 | if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) |
ba37a3d0 JB |
2149 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
2150 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
2151 | ||
3997ff39 JB |
2152 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
2153 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
2154 | ||
8d9698b3 | 2155 | hw->sta_data_size = sizeof(struct iwl_station_priv); |
fd1af15d JB |
2156 | hw->vif_data_size = sizeof(struct iwl_vif_priv); |
2157 | ||
d0fe478c JB |
2158 | for_each_context(priv, ctx) { |
2159 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
2160 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
2161 | } | |
f0b6e2e8 | 2162 | |
0fd09502 JB |
2163 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
2164 | ||
f35490f9 | 2165 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { |
0fd09502 JB |
2166 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; |
2167 | hw->wiphy->n_iface_combinations = | |
2168 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
f35490f9 | 2169 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
0fd09502 JB |
2170 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode; |
2171 | hw->wiphy->n_iface_combinations = | |
2172 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
2173 | } | |
2174 | ||
9b9190d9 JB |
2175 | hw->wiphy->max_remain_on_channel_duration = 1000; |
2176 | ||
f6c8f152 | 2177 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | |
274102a8 JB |
2178 | WIPHY_FLAG_DISABLE_BEACON_HINTS | |
2179 | WIPHY_FLAG_IBSS_RSN; | |
f0b6e2e8 | 2180 | |
c8ac61cf JB |
2181 | if (priv->ucode_wowlan.code.len && device_can_wakeup(priv->bus->dev)) { |
2182 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | | |
2183 | WIPHY_WOWLAN_DISCONNECT | | |
2184 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
2185 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
2186 | if (!iwlagn_mod_params.sw_crypto) | |
2187 | hw->wiphy->wowlan.flags |= | |
2188 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
2189 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
2190 | ||
2191 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
2192 | hw->wiphy->wowlan.pattern_min_len = | |
2193 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
2194 | hw->wiphy->wowlan.pattern_max_len = | |
2195 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
2196 | } | |
2197 | ||
0172b029 WYG |
2198 | if (iwlagn_mod_params.power_save) |
2199 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
2200 | else | |
2201 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
f0b6e2e8 | 2202 | |
1382c71c | 2203 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
f0b6e2e8 | 2204 | /* we create the 802.11 header and a zero-length SSID element */ |
dd7a2509 | 2205 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; |
f0b6e2e8 RC |
2206 | |
2207 | /* Default value; 4 EDCA QOS priorities */ | |
2208 | hw->queues = 4; | |
2209 | ||
2210 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
2211 | ||
2212 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
2213 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
2214 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
2215 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
2216 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
2217 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
2218 | ||
5ed540ae WYG |
2219 | iwl_leds_init(priv); |
2220 | ||
f0b6e2e8 RC |
2221 | ret = ieee80211_register_hw(priv->hw); |
2222 | if (ret) { | |
2223 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
2224 | return ret; | |
2225 | } | |
2226 | priv->mac80211_registered = 1; | |
2227 | ||
2228 | return 0; | |
2229 | } | |
2230 | ||
2231 | ||
2dedbf58 | 2232 | static int iwlagn_mac_start(struct ieee80211_hw *hw) |
b481de9c | 2233 | { |
c79dd5b5 | 2234 | struct iwl_priv *priv = hw->priv; |
5a66926a | 2235 | int ret; |
b481de9c | 2236 | |
e1623446 | 2237 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
2238 | |
2239 | /* we should be verifying the device is ready to be opened */ | |
2240 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2241 | ret = __iwl_up(priv); |
b481de9c | 2242 | mutex_unlock(&priv->mutex); |
e655b9f0 | 2243 | if (ret) |
6cd0b1cb | 2244 | return ret; |
e655b9f0 | 2245 | |
e1623446 | 2246 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); |
e655b9f0 | 2247 | |
ca7966c8 JB |
2248 | /* Now we should be done, and the READY bit should be set. */ |
2249 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) | |
2250 | ret = -EIO; | |
0a078ffa | 2251 | |
5ed540ae | 2252 | iwlagn_led_enable(priv); |
e932a609 | 2253 | |
0a078ffa | 2254 | priv->is_open = 1; |
e1623446 | 2255 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
2256 | return 0; |
2257 | } | |
2258 | ||
2dedbf58 | 2259 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 2260 | { |
c79dd5b5 | 2261 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2262 | |
e1623446 | 2263 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
948c171c | 2264 | |
19cc1087 | 2265 | if (!priv->is_open) |
e655b9f0 | 2266 | return; |
e655b9f0 | 2267 | |
b481de9c | 2268 | priv->is_open = 0; |
5a66926a | 2269 | |
5b9f8cd3 | 2270 | iwl_down(priv); |
5a66926a ZY |
2271 | |
2272 | flush_workqueue(priv->workqueue); | |
6cd0b1cb | 2273 | |
554d1d02 SG |
2274 | /* User space software may expect getting rfkill changes |
2275 | * even if interface is down */ | |
6cd0b1cb | 2276 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
554d1d02 | 2277 | iwl_enable_rfkill_int(priv); |
948c171c | 2278 | |
e1623446 | 2279 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
2280 | } |
2281 | ||
c8ac61cf JB |
2282 | static int iwlagn_send_patterns(struct iwl_priv *priv, |
2283 | struct cfg80211_wowlan *wowlan) | |
2284 | { | |
2285 | struct iwlagn_wowlan_patterns_cmd *pattern_cmd; | |
2286 | struct iwl_host_cmd cmd = { | |
2287 | .id = REPLY_WOWLAN_PATTERNS, | |
2288 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
2289 | .flags = CMD_SYNC, | |
2290 | }; | |
2291 | int i, err; | |
2292 | ||
2293 | if (!wowlan->n_patterns) | |
2294 | return 0; | |
2295 | ||
2296 | cmd.len[0] = sizeof(*pattern_cmd) + | |
2297 | wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern); | |
2298 | ||
2299 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
2300 | if (!pattern_cmd) | |
2301 | return -ENOMEM; | |
2302 | ||
2303 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
2304 | ||
2305 | for (i = 0; i < wowlan->n_patterns; i++) { | |
2306 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
2307 | ||
2308 | memcpy(&pattern_cmd->patterns[i].mask, | |
2309 | wowlan->patterns[i].mask, mask_len); | |
2310 | memcpy(&pattern_cmd->patterns[i].pattern, | |
2311 | wowlan->patterns[i].pattern, | |
2312 | wowlan->patterns[i].pattern_len); | |
2313 | pattern_cmd->patterns[i].mask_size = mask_len; | |
2314 | pattern_cmd->patterns[i].pattern_size = | |
2315 | wowlan->patterns[i].pattern_len; | |
2316 | } | |
2317 | ||
2318 | cmd.data[0] = pattern_cmd; | |
2319 | err = trans_send_cmd(&priv->trans, &cmd); | |
2320 | kfree(pattern_cmd); | |
2321 | return err; | |
2322 | } | |
2323 | ||
2324 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, | |
2325 | struct ieee80211_vif *vif, | |
2326 | struct cfg80211_gtk_rekey_data *data) | |
2327 | { | |
2328 | struct iwl_priv *priv = hw->priv; | |
2329 | ||
2330 | if (iwlagn_mod_params.sw_crypto) | |
2331 | return; | |
2332 | ||
2333 | mutex_lock(&priv->mutex); | |
2334 | ||
2335 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
2336 | goto out; | |
2337 | ||
2338 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
2339 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
2340 | priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
2341 | priv->have_rekey_data = true; | |
2342 | ||
2343 | out: | |
2344 | mutex_unlock(&priv->mutex); | |
2345 | } | |
2346 | ||
2347 | struct wowlan_key_data { | |
2348 | struct iwl_rxon_context *ctx; | |
2349 | struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc; | |
2350 | struct iwlagn_wowlan_tkip_params_cmd *tkip; | |
2351 | const u8 *bssid; | |
2352 | bool error, use_rsc_tsc, use_tkip; | |
2353 | }; | |
2354 | ||
2355 | static void iwlagn_convert_p1k(u16 *p1k, __le16 *out) | |
2356 | { | |
2357 | int i; | |
2358 | ||
2359 | for (i = 0; i < IWLAGN_P1K_SIZE; i++) | |
2360 | out[i] = cpu_to_le16(p1k[i]); | |
2361 | } | |
2362 | ||
2363 | static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw, | |
2364 | struct ieee80211_vif *vif, | |
2365 | struct ieee80211_sta *sta, | |
2366 | struct ieee80211_key_conf *key, | |
2367 | void *_data) | |
2368 | { | |
2369 | struct iwl_priv *priv = hw->priv; | |
2370 | struct wowlan_key_data *data = _data; | |
2371 | struct iwl_rxon_context *ctx = data->ctx; | |
2372 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; | |
2373 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; | |
2374 | struct iwlagn_p1k_cache *rx_p1ks; | |
2375 | u8 *rx_mic_key; | |
2376 | struct ieee80211_key_seq seq; | |
2377 | u32 cur_rx_iv32 = 0; | |
2378 | u16 p1k[IWLAGN_P1K_SIZE]; | |
2379 | int ret, i; | |
2380 | ||
2381 | mutex_lock(&priv->mutex); | |
2382 | ||
2383 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
2384 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && | |
2385 | !sta && !ctx->key_mapping_keys) | |
2386 | ret = iwl_set_default_wep_key(priv, ctx, key); | |
2387 | else | |
2388 | ret = iwl_set_dynamic_key(priv, ctx, key, sta); | |
2389 | ||
2390 | if (ret) { | |
2391 | IWL_ERR(priv, "Error setting key during suspend!\n"); | |
2392 | data->error = true; | |
2393 | } | |
2394 | ||
2395 | switch (key->cipher) { | |
2396 | case WLAN_CIPHER_SUITE_TKIP: | |
2397 | if (sta) { | |
2398 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; | |
2399 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; | |
2400 | ||
2401 | rx_p1ks = data->tkip->rx_uni; | |
2402 | ||
2403 | ieee80211_get_key_tx_seq(key, &seq); | |
2404 | tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); | |
2405 | tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); | |
2406 | ||
2407 | ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); | |
2408 | iwlagn_convert_p1k(p1k, data->tkip->tx.p1k); | |
2409 | ||
2410 | memcpy(data->tkip->mic_keys.tx, | |
2411 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], | |
2412 | IWLAGN_MIC_KEY_SIZE); | |
2413 | ||
2414 | rx_mic_key = data->tkip->mic_keys.rx_unicast; | |
2415 | } else { | |
2416 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; | |
2417 | rx_p1ks = data->tkip->rx_multi; | |
2418 | rx_mic_key = data->tkip->mic_keys.rx_mcast; | |
2419 | } | |
2420 | ||
2421 | /* | |
2422 | * For non-QoS this relies on the fact that both the uCode and | |
2423 | * mac80211 use TID 0 (as they need to to avoid replay attacks) | |
2424 | * for checking the IV in the frames. | |
2425 | */ | |
2426 | for (i = 0; i < IWLAGN_NUM_RSC; i++) { | |
2427 | ieee80211_get_key_rx_seq(key, i, &seq); | |
2428 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); | |
2429 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); | |
2430 | /* wrapping isn't allowed, AP must rekey */ | |
2431 | if (seq.tkip.iv32 > cur_rx_iv32) | |
2432 | cur_rx_iv32 = seq.tkip.iv32; | |
2433 | } | |
2434 | ||
2435 | ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k); | |
2436 | iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k); | |
2437 | ieee80211_get_tkip_rx_p1k(key, data->bssid, | |
2438 | cur_rx_iv32 + 1, p1k); | |
2439 | iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k); | |
2440 | ||
2441 | memcpy(rx_mic_key, | |
2442 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], | |
2443 | IWLAGN_MIC_KEY_SIZE); | |
2444 | ||
2445 | data->use_tkip = true; | |
2446 | data->use_rsc_tsc = true; | |
2447 | break; | |
2448 | case WLAN_CIPHER_SUITE_CCMP: | |
2449 | if (sta) { | |
2450 | u8 *pn = seq.ccmp.pn; | |
2451 | ||
2452 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; | |
2453 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; | |
2454 | ||
2455 | ieee80211_get_key_tx_seq(key, &seq); | |
2456 | aes_tx_sc->pn = cpu_to_le64( | |
2457 | (u64)pn[5] | | |
2458 | ((u64)pn[4] << 8) | | |
2459 | ((u64)pn[3] << 16) | | |
2460 | ((u64)pn[2] << 24) | | |
2461 | ((u64)pn[1] << 32) | | |
2462 | ((u64)pn[0] << 40)); | |
2463 | } else | |
2464 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; | |
2465 | ||
2466 | /* | |
2467 | * For non-QoS this relies on the fact that both the uCode and | |
2468 | * mac80211 use TID 0 for checking the IV in the frames. | |
2469 | */ | |
2470 | for (i = 0; i < IWLAGN_NUM_RSC; i++) { | |
2471 | u8 *pn = seq.ccmp.pn; | |
2472 | ||
2473 | ieee80211_get_key_rx_seq(key, i, &seq); | |
2474 | aes_sc->pn = cpu_to_le64( | |
2475 | (u64)pn[5] | | |
2476 | ((u64)pn[4] << 8) | | |
2477 | ((u64)pn[3] << 16) | | |
2478 | ((u64)pn[2] << 24) | | |
2479 | ((u64)pn[1] << 32) | | |
2480 | ((u64)pn[0] << 40)); | |
2481 | } | |
2482 | data->use_rsc_tsc = true; | |
2483 | break; | |
2484 | } | |
2485 | ||
2486 | mutex_unlock(&priv->mutex); | |
2487 | } | |
2488 | ||
2489 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, | |
2490 | struct cfg80211_wowlan *wowlan) | |
2491 | { | |
2492 | struct iwl_priv *priv = hw->priv; | |
2493 | struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd; | |
2494 | struct iwl_rxon_cmd rxon; | |
2495 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
2496 | struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd; | |
2497 | struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {}; | |
2498 | struct wowlan_key_data key_data = { | |
2499 | .ctx = ctx, | |
2500 | .bssid = ctx->active.bssid_addr, | |
2501 | .use_rsc_tsc = false, | |
2502 | .tkip = &tkip_cmd, | |
2503 | .use_tkip = false, | |
2504 | }; | |
2505 | int ret, i; | |
2506 | u16 seq; | |
2507 | ||
2508 | if (WARN_ON(!wowlan)) | |
2509 | return -EINVAL; | |
2510 | ||
2511 | mutex_lock(&priv->mutex); | |
2512 | ||
2513 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
2514 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
2515 | !iwl_is_associated_ctx(ctx)) { | |
2516 | ret = 1; | |
2517 | goto out; | |
2518 | } | |
2519 | ||
2520 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); | |
2521 | if (!key_data.rsc_tsc) { | |
2522 | ret = -ENOMEM; | |
2523 | goto out; | |
2524 | } | |
2525 | ||
2526 | memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd)); | |
2527 | ||
2528 | /* | |
2529 | * We know the last used seqno, and the uCode expects to know that | |
2530 | * one, it will increment before TX. | |
2531 | */ | |
2532 | seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ; | |
2533 | wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq); | |
2534 | ||
2535 | /* | |
2536 | * For QoS counters, we store the one to use next, so subtract 0x10 | |
2537 | * since the uCode will add 0x10 before using the value. | |
2538 | */ | |
2539 | for (i = 0; i < 8; i++) { | |
2540 | seq = priv->stations[IWL_AP_ID].tid[i].seq_number; | |
2541 | seq -= 0x10; | |
2542 | wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq); | |
2543 | } | |
2544 | ||
2545 | if (wowlan->disconnect) | |
2546 | wakeup_filter_cmd.enabled |= | |
2547 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | | |
2548 | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE); | |
2549 | if (wowlan->magic_pkt) | |
2550 | wakeup_filter_cmd.enabled |= | |
2551 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET); | |
2552 | if (wowlan->gtk_rekey_failure) | |
2553 | wakeup_filter_cmd.enabled |= | |
2554 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL); | |
2555 | if (wowlan->eap_identity_req) | |
2556 | wakeup_filter_cmd.enabled |= | |
2557 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ); | |
2558 | if (wowlan->four_way_handshake) | |
2559 | wakeup_filter_cmd.enabled |= | |
2560 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE); | |
2561 | if (wowlan->rfkill_release) | |
2562 | wakeup_filter_cmd.enabled |= | |
2563 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL); | |
2564 | if (wowlan->n_patterns) | |
2565 | wakeup_filter_cmd.enabled |= | |
2566 | cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH); | |
2567 | ||
2568 | iwl_scan_cancel_timeout(priv, 200); | |
2569 | ||
2570 | memcpy(&rxon, &ctx->active, sizeof(rxon)); | |
2571 | ||
2572 | trans_stop_device(&priv->trans); | |
2573 | ||
2574 | priv->wowlan = true; | |
2575 | ||
2576 | ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan, | |
2577 | IWL_UCODE_WOWLAN); | |
2578 | if (ret) | |
2579 | goto error; | |
2580 | ||
2581 | /* now configure WoWLAN ucode */ | |
2582 | ret = iwl_alive_start(priv); | |
2583 | if (ret) | |
2584 | goto error; | |
2585 | ||
2586 | memcpy(&ctx->staging, &rxon, sizeof(rxon)); | |
2587 | ret = iwlagn_commit_rxon(priv, ctx); | |
2588 | if (ret) | |
2589 | goto error; | |
2590 | ||
2591 | ret = iwl_power_update_mode(priv, true); | |
2592 | if (ret) | |
2593 | goto error; | |
2594 | ||
2595 | if (!iwlagn_mod_params.sw_crypto) { | |
2596 | /* mark all keys clear */ | |
2597 | priv->ucode_key_table = 0; | |
2598 | ctx->key_mapping_keys = 0; | |
2599 | ||
2600 | /* | |
2601 | * This needs to be unlocked due to lock ordering | |
2602 | * constraints. Since we're in the suspend path | |
2603 | * that isn't really a problem though. | |
2604 | */ | |
2605 | mutex_unlock(&priv->mutex); | |
2606 | ieee80211_iter_keys(priv->hw, ctx->vif, | |
2607 | iwlagn_wowlan_program_keys, | |
2608 | &key_data); | |
2609 | mutex_lock(&priv->mutex); | |
2610 | if (key_data.error) { | |
2611 | ret = -EIO; | |
2612 | goto error; | |
2613 | } | |
2614 | ||
2615 | if (key_data.use_rsc_tsc) { | |
2616 | struct iwl_host_cmd rsc_tsc_cmd = { | |
2617 | .id = REPLY_WOWLAN_TSC_RSC_PARAMS, | |
2618 | .flags = CMD_SYNC, | |
2619 | .data[0] = key_data.rsc_tsc, | |
2620 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
2621 | .len[0] = sizeof(*key_data.rsc_tsc), | |
2622 | }; | |
2623 | ||
2624 | ret = trans_send_cmd(&priv->trans, &rsc_tsc_cmd); | |
2625 | if (ret) | |
2626 | goto error; | |
2627 | } | |
2628 | ||
2629 | if (key_data.use_tkip) { | |
2630 | ret = trans_send_cmd_pdu(&priv->trans, | |
2631 | REPLY_WOWLAN_TKIP_PARAMS, | |
2632 | CMD_SYNC, sizeof(tkip_cmd), | |
2633 | &tkip_cmd); | |
2634 | if (ret) | |
2635 | goto error; | |
2636 | } | |
2637 | ||
2638 | if (priv->have_rekey_data) { | |
2639 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); | |
2640 | memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN); | |
2641 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); | |
2642 | memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN); | |
2643 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); | |
2644 | kek_kck_cmd.replay_ctr = priv->replay_ctr; | |
2645 | ||
2646 | ret = trans_send_cmd_pdu(&priv->trans, | |
2647 | REPLY_WOWLAN_KEK_KCK_MATERIAL, | |
2648 | CMD_SYNC, sizeof(kek_kck_cmd), | |
2649 | &kek_kck_cmd); | |
2650 | if (ret) | |
2651 | goto error; | |
2652 | } | |
2653 | } | |
2654 | ||
2655 | ret = trans_send_cmd_pdu(&priv->trans, REPLY_WOWLAN_WAKEUP_FILTER, | |
2656 | CMD_SYNC, sizeof(wakeup_filter_cmd), | |
2657 | &wakeup_filter_cmd); | |
2658 | if (ret) | |
2659 | goto error; | |
2660 | ||
2661 | ret = iwlagn_send_patterns(priv, wowlan); | |
2662 | if (ret) | |
2663 | goto error; | |
2664 | ||
2665 | device_set_wakeup_enable(priv->bus->dev, true); | |
2666 | ||
2667 | /* Now let the ucode operate on its own */ | |
2668 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, | |
2669 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
2670 | ||
2671 | goto out; | |
2672 | ||
2673 | error: | |
2674 | priv->wowlan = false; | |
2675 | iwlagn_prepare_restart(priv); | |
2676 | ieee80211_restart_hw(priv->hw); | |
2677 | out: | |
2678 | mutex_unlock(&priv->mutex); | |
2679 | kfree(key_data.rsc_tsc); | |
2680 | return ret; | |
2681 | } | |
2682 | ||
2683 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
2684 | { | |
2685 | struct iwl_priv *priv = hw->priv; | |
2686 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
2687 | struct ieee80211_vif *vif; | |
2688 | unsigned long flags; | |
2689 | u32 base, status = 0xffffffff; | |
2690 | int ret = -EIO; | |
2691 | ||
2692 | mutex_lock(&priv->mutex); | |
2693 | ||
2694 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
2695 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
2696 | ||
2697 | base = priv->device_pointers.error_event_table; | |
2698 | if (iwlagn_hw_valid_rtc_data_addr(base)) { | |
2699 | spin_lock_irqsave(&priv->reg_lock, flags); | |
2700 | ret = iwl_grab_nic_access_silent(priv); | |
2701 | if (ret == 0) { | |
2702 | iwl_write32(priv, HBUS_TARG_MEM_RADDR, base); | |
2703 | status = iwl_read32(priv, HBUS_TARG_MEM_RDAT); | |
2704 | iwl_release_nic_access(priv); | |
2705 | } | |
2706 | spin_unlock_irqrestore(&priv->reg_lock, flags); | |
2707 | ||
2708 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
2709 | if (ret == 0) { | |
2710 | if (!priv->wowlan_sram) | |
2711 | priv->wowlan_sram = | |
2712 | kzalloc(priv->ucode_wowlan.data.len, | |
2713 | GFP_KERNEL); | |
2714 | ||
2715 | if (priv->wowlan_sram) | |
2716 | _iwl_read_targ_mem_words( | |
2717 | priv, 0x800000, priv->wowlan_sram, | |
2718 | priv->ucode_wowlan.data.len / 4); | |
2719 | } | |
2720 | #endif | |
2721 | } | |
2722 | ||
2723 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
2724 | vif = ctx->vif; | |
2725 | ||
2726 | priv->wowlan = false; | |
2727 | ||
2728 | device_set_wakeup_enable(priv->bus->dev, false); | |
2729 | ||
2730 | iwlagn_prepare_restart(priv); | |
2731 | ||
2732 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
2733 | iwl_connection_init_rx_config(priv, ctx); | |
2734 | iwlagn_set_rxon_chain(priv, ctx); | |
2735 | ||
2736 | mutex_unlock(&priv->mutex); | |
2737 | ||
2738 | ieee80211_resume_disconnect(vif); | |
2739 | ||
2740 | return 1; | |
2741 | } | |
2742 | ||
2dedbf58 | 2743 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 2744 | { |
c79dd5b5 | 2745 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2746 | |
e1623446 | 2747 | IWL_DEBUG_MACDUMP(priv, "enter\n"); |
b481de9c | 2748 | |
e1623446 | 2749 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 2750 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 2751 | |
74bcdb33 | 2752 | if (iwlagn_tx_skb(priv, skb)) |
b481de9c ZY |
2753 | dev_kfree_skb_any(skb); |
2754 | ||
e1623446 | 2755 | IWL_DEBUG_MACDUMP(priv, "leave\n"); |
b481de9c ZY |
2756 | } |
2757 | ||
2dedbf58 JB |
2758 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
2759 | struct ieee80211_vif *vif, | |
2760 | struct ieee80211_key_conf *keyconf, | |
2761 | struct ieee80211_sta *sta, | |
2762 | u32 iv32, u16 *phase1key) | |
ab885f8c | 2763 | { |
9f58671e | 2764 | struct iwl_priv *priv = hw->priv; |
ab885f8c | 2765 | |
5a3d9882 | 2766 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); |
ab885f8c EG |
2767 | } |
2768 | ||
2dedbf58 JB |
2769 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2770 | struct ieee80211_vif *vif, | |
2771 | struct ieee80211_sta *sta, | |
2772 | struct ieee80211_key_conf *key) | |
b481de9c | 2773 | { |
c79dd5b5 | 2774 | struct iwl_priv *priv = hw->priv; |
a194e324 | 2775 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
c10afb6e | 2776 | struct iwl_rxon_context *ctx = vif_priv->ctx; |
42986796 | 2777 | int ret; |
42986796 | 2778 | bool is_default_wep_key = false; |
b481de9c | 2779 | |
e1623446 | 2780 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 2781 | |
9d143e9a | 2782 | if (iwlagn_mod_params.sw_crypto) { |
e1623446 | 2783 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
b481de9c ZY |
2784 | return -EOPNOTSUPP; |
2785 | } | |
b481de9c | 2786 | |
274102a8 | 2787 | /* |
5a3d9882 JB |
2788 | * We could program these keys into the hardware as well, but we |
2789 | * don't expect much multicast traffic in IBSS and having keys | |
2790 | * for more stations is probably more useful. | |
2791 | * | |
2792 | * Mark key TX-only and return 0. | |
274102a8 JB |
2793 | */ |
2794 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
5a3d9882 JB |
2795 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
2796 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
2797 | return 0; | |
2798 | } | |
274102a8 | 2799 | |
5a3d9882 JB |
2800 | /* If they key was TX-only, accept deletion */ |
2801 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
2802 | return 0; | |
b481de9c | 2803 | |
6974e363 | 2804 | mutex_lock(&priv->mutex); |
2a421b91 | 2805 | iwl_scan_cancel_timeout(priv, 100); |
6974e363 | 2806 | |
5a3d9882 JB |
2807 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); |
2808 | ||
a90178fa JB |
2809 | /* |
2810 | * If we are getting WEP group key and we didn't receive any key mapping | |
6974e363 EG |
2811 | * so far, we are in legacy wep mode (group key only), otherwise we are |
2812 | * in 1X mode. | |
a90178fa JB |
2813 | * In legacy wep mode, we use another host command to the uCode. |
2814 | */ | |
97359d12 | 2815 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
5a3d9882 | 2816 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { |
6974e363 | 2817 | if (cmd == SET_KEY) |
c10afb6e | 2818 | is_default_wep_key = !ctx->key_mapping_keys; |
6974e363 | 2819 | else |
ccc038ab | 2820 | is_default_wep_key = |
5a3d9882 | 2821 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; |
6974e363 | 2822 | } |
052c4b9f | 2823 | |
5a3d9882 | 2824 | |
b481de9c | 2825 | switch (cmd) { |
deb09c43 | 2826 | case SET_KEY: |
5a3d9882 | 2827 | if (is_default_wep_key) { |
2995bafa | 2828 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); |
5a3d9882 JB |
2829 | break; |
2830 | } | |
2831 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
2832 | if (ret) { | |
2833 | /* | |
2834 | * can't add key for RX, but we don't need it | |
2835 | * in the device for TX so still return 0 | |
2836 | */ | |
2837 | ret = 0; | |
2838 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
2839 | } | |
deb09c43 | 2840 | |
e1623446 | 2841 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
b481de9c ZY |
2842 | break; |
2843 | case DISABLE_KEY: | |
6974e363 | 2844 | if (is_default_wep_key) |
c10afb6e | 2845 | ret = iwl_remove_default_wep_key(priv, ctx, key); |
deb09c43 | 2846 | else |
5a3d9882 | 2847 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); |
deb09c43 | 2848 | |
e1623446 | 2849 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
b481de9c ZY |
2850 | break; |
2851 | default: | |
deb09c43 | 2852 | ret = -EINVAL; |
b481de9c ZY |
2853 | } |
2854 | ||
72e15d71 | 2855 | mutex_unlock(&priv->mutex); |
e1623446 | 2856 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 2857 | |
deb09c43 | 2858 | return ret; |
b481de9c ZY |
2859 | } |
2860 | ||
2dedbf58 JB |
2861 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
2862 | struct ieee80211_vif *vif, | |
2863 | enum ieee80211_ampdu_mlme_action action, | |
2864 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
2865 | u8 buf_size) | |
d783b061 TW |
2866 | { |
2867 | struct iwl_priv *priv = hw->priv; | |
4620fefa | 2868 | int ret = -EINVAL; |
7b090687 | 2869 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; |
d783b061 | 2870 | |
e1623446 | 2871 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", |
e174961c | 2872 | sta->addr, tid); |
d783b061 | 2873 | |
88950758 | 2874 | if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)) |
d783b061 TW |
2875 | return -EACCES; |
2876 | ||
4620fefa JB |
2877 | mutex_lock(&priv->mutex); |
2878 | ||
d783b061 TW |
2879 | switch (action) { |
2880 | case IEEE80211_AMPDU_RX_START: | |
e1623446 | 2881 | IWL_DEBUG_HT(priv, "start Rx\n"); |
4620fefa JB |
2882 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); |
2883 | break; | |
d783b061 | 2884 | case IEEE80211_AMPDU_RX_STOP: |
e1623446 | 2885 | IWL_DEBUG_HT(priv, "stop Rx\n"); |
619753ff | 2886 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); |
5c2207c6 | 2887 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
4620fefa JB |
2888 | ret = 0; |
2889 | break; | |
d783b061 | 2890 | case IEEE80211_AMPDU_TX_START: |
e1623446 | 2891 | IWL_DEBUG_HT(priv, "start Tx\n"); |
619753ff | 2892 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); |
d5a0ffa3 | 2893 | if (ret == 0) { |
898ed67b WYG |
2894 | priv->agg_tids_count++; |
2895 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
2896 | priv->agg_tids_count); | |
d5a0ffa3 | 2897 | } |
4620fefa | 2898 | break; |
d783b061 | 2899 | case IEEE80211_AMPDU_TX_STOP: |
e1623446 | 2900 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
619753ff | 2901 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); |
898ed67b WYG |
2902 | if ((ret == 0) && (priv->agg_tids_count > 0)) { |
2903 | priv->agg_tids_count--; | |
2904 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
2905 | priv->agg_tids_count); | |
d5a0ffa3 | 2906 | } |
5c2207c6 | 2907 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
4620fefa | 2908 | ret = 0; |
7cb1b088 WYG |
2909 | if (priv->cfg->ht_params && |
2910 | priv->cfg->ht_params->use_rts_for_aggregation) { | |
94597ab2 JB |
2911 | /* |
2912 | * switch off RTS/CTS if it was previously enabled | |
2913 | */ | |
94597ab2 JB |
2914 | sta_priv->lq_sta.lq.general_params.flags &= |
2915 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
7e6a5886 JB |
2916 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), |
2917 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
94597ab2 | 2918 | } |
4620fefa | 2919 | break; |
f0527971 | 2920 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
c8823ec1 JB |
2921 | buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); |
2922 | ||
41c50542 EG |
2923 | trans_txq_agg_setup(&priv->trans, iwl_sta_id(sta), tid, |
2924 | buf_size); | |
c8823ec1 | 2925 | |
7b090687 JB |
2926 | /* |
2927 | * If the limit is 0, then it wasn't initialised yet, | |
2928 | * use the default. We can do that since we take the | |
2929 | * minimum below, and we don't want to go above our | |
2930 | * default due to hardware restrictions. | |
2931 | */ | |
2932 | if (sta_priv->max_agg_bufsize == 0) | |
2933 | sta_priv->max_agg_bufsize = | |
2934 | LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
2935 | ||
2936 | /* | |
2937 | * Even though in theory the peer could have different | |
2938 | * aggregation reorder buffer sizes for different sessions, | |
2939 | * our ucode doesn't allow for that and has a global limit | |
2940 | * for each station. Therefore, use the minimum of all the | |
2941 | * aggregation sessions and our default value. | |
2942 | */ | |
2943 | sta_priv->max_agg_bufsize = | |
2944 | min(sta_priv->max_agg_bufsize, buf_size); | |
2945 | ||
7cb1b088 WYG |
2946 | if (priv->cfg->ht_params && |
2947 | priv->cfg->ht_params->use_rts_for_aggregation) { | |
cfecc6b4 WYG |
2948 | /* |
2949 | * switch to RTS/CTS if it is the prefer protection | |
2950 | * method for HT traffic | |
2951 | */ | |
94597ab2 JB |
2952 | |
2953 | sta_priv->lq_sta.lq.general_params.flags |= | |
2954 | LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
cfecc6b4 | 2955 | } |
7b090687 JB |
2956 | |
2957 | sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit = | |
2958 | sta_priv->max_agg_bufsize; | |
2959 | ||
2960 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
2961 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
5bc9890f WYG |
2962 | |
2963 | IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n", | |
2964 | sta->addr, tid); | |
cfecc6b4 | 2965 | ret = 0; |
d783b061 TW |
2966 | break; |
2967 | } | |
4620fefa JB |
2968 | mutex_unlock(&priv->mutex); |
2969 | ||
2970 | return ret; | |
d783b061 | 2971 | } |
9f58671e | 2972 | |
2dedbf58 JB |
2973 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, |
2974 | struct ieee80211_vif *vif, | |
2975 | struct ieee80211_sta *sta) | |
fe6b23dd RC |
2976 | { |
2977 | struct iwl_priv *priv = hw->priv; | |
2978 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
a194e324 | 2979 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
eafdfbd3 | 2980 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; |
fe6b23dd RC |
2981 | int ret; |
2982 | u8 sta_id; | |
2983 | ||
2984 | IWL_DEBUG_INFO(priv, "received request to add station %pM\n", | |
2985 | sta->addr); | |
da5ae1cf RC |
2986 | mutex_lock(&priv->mutex); |
2987 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", | |
2988 | sta->addr); | |
2989 | sta_priv->common.sta_id = IWL_INVALID_STATION; | |
fe6b23dd RC |
2990 | |
2991 | atomic_set(&sta_priv->pending_frames, 0); | |
2992 | if (vif->type == NL80211_IFTYPE_AP) | |
2993 | sta_priv->client = true; | |
2994 | ||
a194e324 | 2995 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, |
238d781d | 2996 | is_ap, sta, &sta_id); |
fe6b23dd RC |
2997 | if (ret) { |
2998 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
2999 | sta->addr, ret); | |
3000 | /* Should we return success if return code is EEXIST ? */ | |
da5ae1cf | 3001 | mutex_unlock(&priv->mutex); |
fe6b23dd RC |
3002 | return ret; |
3003 | } | |
3004 | ||
fd1af15d JB |
3005 | sta_priv->common.sta_id = sta_id; |
3006 | ||
fe6b23dd | 3007 | /* Initialize rate scaling */ |
91dd6c27 | 3008 | IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", |
fe6b23dd RC |
3009 | sta->addr); |
3010 | iwl_rs_rate_init(priv, sta, sta_id); | |
da5ae1cf | 3011 | mutex_unlock(&priv->mutex); |
fe6b23dd | 3012 | |
fd1af15d | 3013 | return 0; |
fe6b23dd RC |
3014 | } |
3015 | ||
2dedbf58 JB |
3016 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
3017 | struct ieee80211_channel_switch *ch_switch) | |
79d07325 WYG |
3018 | { |
3019 | struct iwl_priv *priv = hw->priv; | |
3020 | const struct iwl_channel_info *ch_info; | |
3021 | struct ieee80211_conf *conf = &hw->conf; | |
aa2dc6b5 | 3022 | struct ieee80211_channel *channel = ch_switch->channel; |
79d07325 | 3023 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
246ed355 JB |
3024 | /* |
3025 | * MULTI-FIXME | |
3026 | * When we add support for multiple interfaces, we need to | |
3027 | * revisit this. The channel switch command in the device | |
3028 | * only affects the BSS context, but what does that really | |
3029 | * mean? And what if we get a CSA on the second interface? | |
3030 | * This needs a lot of work. | |
3031 | */ | |
3032 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
79d07325 | 3033 | u16 ch; |
79d07325 WYG |
3034 | |
3035 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
3036 | ||
dc1a4068 SG |
3037 | mutex_lock(&priv->mutex); |
3038 | ||
79d07325 | 3039 | if (iwl_is_rfkill(priv)) |
dc1a4068 | 3040 | goto out; |
79d07325 WYG |
3041 | |
3042 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
6f213ff1 SG |
3043 | test_bit(STATUS_SCANNING, &priv->status) || |
3044 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
dc1a4068 | 3045 | goto out; |
79d07325 | 3046 | |
246ed355 | 3047 | if (!iwl_is_associated_ctx(ctx)) |
dc1a4068 | 3048 | goto out; |
79d07325 | 3049 | |
90c300cb | 3050 | if (!priv->cfg->lib->set_channel_switch) |
f973f87e | 3051 | goto out; |
79d07325 | 3052 | |
f973f87e SG |
3053 | ch = channel->hw_value; |
3054 | if (le16_to_cpu(ctx->active.channel) == ch) | |
3055 | goto out; | |
3056 | ||
3057 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
3058 | if (!is_channel_valid(ch_info)) { | |
3059 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
3060 | goto out; | |
3061 | } | |
79d07325 | 3062 | |
f973f87e | 3063 | spin_lock_irq(&priv->lock); |
79d07325 | 3064 | |
f973f87e | 3065 | priv->current_ht_config.smps = conf->smps_mode; |
79d07325 | 3066 | |
f973f87e SG |
3067 | /* Configure HT40 channels */ |
3068 | ctx->ht.enabled = conf_is_ht(conf); | |
3069 | if (ctx->ht.enabled) { | |
3070 | if (conf_is_ht40_minus(conf)) { | |
3071 | ctx->ht.extension_chan_offset = | |
3072 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
3073 | ctx->ht.is_40mhz = true; | |
3074 | } else if (conf_is_ht40_plus(conf)) { | |
3075 | ctx->ht.extension_chan_offset = | |
3076 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
3077 | ctx->ht.is_40mhz = true; | |
3078 | } else { | |
3079 | ctx->ht.extension_chan_offset = | |
3080 | IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
3081 | ctx->ht.is_40mhz = false; | |
79d07325 | 3082 | } |
f973f87e SG |
3083 | } else |
3084 | ctx->ht.is_40mhz = false; | |
3085 | ||
3086 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
3087 | ctx->staging.flags = 0; | |
3088 | ||
3089 | iwl_set_rxon_channel(priv, channel, ctx); | |
3090 | iwl_set_rxon_ht(priv, ht_conf); | |
3091 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
3092 | ||
3093 | spin_unlock_irq(&priv->lock); | |
3094 | ||
3095 | iwl_set_rate(priv); | |
3096 | /* | |
3097 | * at this point, staging_rxon has the | |
3098 | * configuration for channel switch | |
3099 | */ | |
3100 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); | |
3101 | priv->switch_channel = cpu_to_le16(ch); | |
90c300cb | 3102 | if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) { |
f973f87e SG |
3103 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
3104 | priv->switch_channel = 0; | |
3105 | ieee80211_chswitch_done(ctx->vif, false); | |
79d07325 | 3106 | } |
f973f87e | 3107 | |
79d07325 WYG |
3108 | out: |
3109 | mutex_unlock(&priv->mutex); | |
79d07325 WYG |
3110 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
3111 | } | |
3112 | ||
2dedbf58 JB |
3113 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
3114 | unsigned int changed_flags, | |
3115 | unsigned int *total_flags, | |
3116 | u64 multicast) | |
8b8ab9d5 JB |
3117 | { |
3118 | struct iwl_priv *priv = hw->priv; | |
3119 | __le32 filter_or = 0, filter_nand = 0; | |
246ed355 | 3120 | struct iwl_rxon_context *ctx; |
8b8ab9d5 JB |
3121 | |
3122 | #define CHK(test, flag) do { \ | |
3123 | if (*total_flags & (test)) \ | |
3124 | filter_or |= (flag); \ | |
3125 | else \ | |
3126 | filter_nand |= (flag); \ | |
3127 | } while (0) | |
3128 | ||
3129 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
3130 | changed_flags, *total_flags); | |
3131 | ||
3132 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
bdb84fec JB |
3133 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ |
3134 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
8b8ab9d5 JB |
3135 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); |
3136 | ||
3137 | #undef CHK | |
3138 | ||
3139 | mutex_lock(&priv->mutex); | |
3140 | ||
246ed355 JB |
3141 | for_each_context(priv, ctx) { |
3142 | ctx->staging.filter_flags &= ~filter_nand; | |
3143 | ctx->staging.filter_flags |= filter_or; | |
749ff4ef SG |
3144 | |
3145 | /* | |
3146 | * Not committing directly because hardware can perform a scan, | |
3147 | * but we'll eventually commit the filter flags change anyway. | |
3148 | */ | |
246ed355 | 3149 | } |
8b8ab9d5 JB |
3150 | |
3151 | mutex_unlock(&priv->mutex); | |
3152 | ||
3153 | /* | |
3154 | * Receiving all multicast frames is always enabled by the | |
3155 | * default flags setup in iwl_connection_init_rx_config() | |
3156 | * since we currently do not support programming multicast | |
3157 | * filters into the device. | |
3158 | */ | |
3159 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
3160 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
3161 | } | |
3162 | ||
2dedbf58 | 3163 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) |
716c74b0 WYG |
3164 | { |
3165 | struct iwl_priv *priv = hw->priv; | |
3166 | ||
3167 | mutex_lock(&priv->mutex); | |
3168 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
3169 | ||
716c74b0 WYG |
3170 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
3171 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); | |
3172 | goto done; | |
3173 | } | |
3174 | if (iwl_is_rfkill(priv)) { | |
3175 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); | |
3176 | goto done; | |
3177 | } | |
3178 | ||
3179 | /* | |
3180 | * mac80211 will not push any more frames for transmit | |
3181 | * until the flush is completed | |
3182 | */ | |
3183 | if (drop) { | |
3184 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
c68744fb | 3185 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { |
716c74b0 WYG |
3186 | IWL_ERR(priv, "flush request fail\n"); |
3187 | goto done; | |
3188 | } | |
3189 | } | |
3190 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
3191 | iwlagn_wait_tx_queue_empty(priv); | |
3192 | done: | |
3193 | mutex_unlock(&priv->mutex); | |
3194 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
3195 | } | |
3196 | ||
9b9190d9 JB |
3197 | static void iwlagn_disable_roc(struct iwl_priv *priv) |
3198 | { | |
3199 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; | |
3200 | struct ieee80211_channel *chan = ACCESS_ONCE(priv->hw->conf.channel); | |
3201 | ||
3202 | lockdep_assert_held(&priv->mutex); | |
3203 | ||
3204 | if (!ctx->is_active) | |
3205 | return; | |
3206 | ||
3207 | ctx->staging.dev_type = RXON_DEV_TYPE_2STA; | |
3208 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
3209 | iwl_set_rxon_channel(priv, chan, ctx); | |
3210 | iwl_set_flags_for_band(priv, ctx, chan->band, NULL); | |
3211 | ||
898ed67b | 3212 | priv->hw_roc_channel = NULL; |
9b9190d9 | 3213 | |
805a3b81 | 3214 | iwlagn_commit_rxon(priv, ctx); |
9b9190d9 JB |
3215 | |
3216 | ctx->is_active = false; | |
3217 | } | |
3218 | ||
3219 | static void iwlagn_bg_roc_done(struct work_struct *work) | |
3220 | { | |
3221 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
898ed67b | 3222 | hw_roc_work.work); |
9b9190d9 JB |
3223 | |
3224 | mutex_lock(&priv->mutex); | |
3225 | ieee80211_remain_on_channel_expired(priv->hw); | |
3226 | iwlagn_disable_roc(priv); | |
3227 | mutex_unlock(&priv->mutex); | |
3228 | } | |
3229 | ||
3230 | static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw, | |
3231 | struct ieee80211_channel *channel, | |
3232 | enum nl80211_channel_type channel_type, | |
3233 | int duration) | |
3234 | { | |
3235 | struct iwl_priv *priv = hw->priv; | |
3236 | int err = 0; | |
3237 | ||
3238 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
3239 | return -EOPNOTSUPP; | |
3240 | ||
3241 | if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes & | |
3242 | BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
3243 | return -EOPNOTSUPP; | |
3244 | ||
3245 | mutex_lock(&priv->mutex); | |
3246 | ||
3247 | if (priv->contexts[IWL_RXON_CTX_PAN].is_active || | |
3248 | test_bit(STATUS_SCAN_HW, &priv->status)) { | |
3249 | err = -EBUSY; | |
3250 | goto out; | |
3251 | } | |
3252 | ||
3253 | priv->contexts[IWL_RXON_CTX_PAN].is_active = true; | |
898ed67b WYG |
3254 | priv->hw_roc_channel = channel; |
3255 | priv->hw_roc_chantype = channel_type; | |
3256 | priv->hw_roc_duration = DIV_ROUND_UP(duration * 1000, 1024); | |
805a3b81 | 3257 | iwlagn_commit_rxon(priv, &priv->contexts[IWL_RXON_CTX_PAN]); |
898ed67b | 3258 | queue_delayed_work(priv->workqueue, &priv->hw_roc_work, |
9b9190d9 JB |
3259 | msecs_to_jiffies(duration + 20)); |
3260 | ||
94073919 | 3261 | msleep(IWL_MIN_SLOT_TIME); /* TU is almost ms */ |
9b9190d9 JB |
3262 | ieee80211_ready_on_channel(priv->hw); |
3263 | ||
3264 | out: | |
3265 | mutex_unlock(&priv->mutex); | |
3266 | ||
3267 | return err; | |
3268 | } | |
3269 | ||
3270 | static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) | |
3271 | { | |
3272 | struct iwl_priv *priv = hw->priv; | |
3273 | ||
3274 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
3275 | return -EOPNOTSUPP; | |
3276 | ||
898ed67b | 3277 | cancel_delayed_work_sync(&priv->hw_roc_work); |
9b9190d9 JB |
3278 | |
3279 | mutex_lock(&priv->mutex); | |
3280 | iwlagn_disable_roc(priv); | |
3281 | mutex_unlock(&priv->mutex); | |
3282 | ||
3283 | return 0; | |
3284 | } | |
3285 | ||
b481de9c ZY |
3286 | /***************************************************************************** |
3287 | * | |
3288 | * driver setup and teardown | |
3289 | * | |
3290 | *****************************************************************************/ | |
3291 | ||
4e39317d | 3292 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
b481de9c | 3293 | { |
d21050c7 | 3294 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c ZY |
3295 | |
3296 | init_waitqueue_head(&priv->wait_command_queue); | |
3297 | ||
5b9f8cd3 | 3298 | INIT_WORK(&priv->restart, iwl_bg_restart); |
5b9f8cd3 | 3299 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); |
16e727e8 | 3300 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
65550636 | 3301 | INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); |
bee008b7 | 3302 | INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); |
fbba9410 | 3303 | INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); |
898ed67b | 3304 | INIT_DELAYED_WORK(&priv->hw_roc_work, iwlagn_bg_roc_done); |
2a421b91 | 3305 | |
2a421b91 | 3306 | iwl_setup_scan_deferred_work(priv); |
bb8c093b | 3307 | |
6bd4dba3 EG |
3308 | if (priv->cfg->lib->bt_setup_deferred_work) |
3309 | priv->cfg->lib->bt_setup_deferred_work(priv); | |
4e39317d EG |
3310 | |
3311 | init_timer(&priv->statistics_periodic); | |
3312 | priv->statistics_periodic.data = (unsigned long)priv; | |
5b9f8cd3 | 3313 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
b481de9c | 3314 | |
a9e1cb6a WYG |
3315 | init_timer(&priv->ucode_trace); |
3316 | priv->ucode_trace.data = (unsigned long)priv; | |
3317 | priv->ucode_trace.function = iwl_bg_ucode_trace; | |
3318 | ||
22de94de SG |
3319 | init_timer(&priv->watchdog); |
3320 | priv->watchdog.data = (unsigned long)priv; | |
3321 | priv->watchdog.function = iwl_bg_watchdog; | |
b481de9c ZY |
3322 | } |
3323 | ||
4e39317d | 3324 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3325 | { |
90c300cb WYG |
3326 | if (priv->cfg->lib->cancel_deferred_work) |
3327 | priv->cfg->lib->cancel_deferred_work(priv); | |
b481de9c | 3328 | |
815e629b | 3329 | cancel_work_sync(&priv->run_time_calib_work); |
b481de9c | 3330 | cancel_work_sync(&priv->beacon_update); |
e7e16b90 SG |
3331 | |
3332 | iwl_cancel_scan_deferred_work(priv); | |
3333 | ||
bee008b7 | 3334 | cancel_work_sync(&priv->bt_full_concurrency); |
fbba9410 | 3335 | cancel_work_sync(&priv->bt_runtime_config); |
e7e16b90 | 3336 | |
4e39317d | 3337 | del_timer_sync(&priv->statistics_periodic); |
a9e1cb6a | 3338 | del_timer_sync(&priv->ucode_trace); |
b481de9c ZY |
3339 | } |
3340 | ||
89f186a8 RC |
3341 | static void iwl_init_hw_rates(struct iwl_priv *priv, |
3342 | struct ieee80211_rate *rates) | |
3343 | { | |
3344 | int i; | |
3345 | ||
3346 | for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { | |
3347 | rates[i].bitrate = iwl_rates[i].ieee * 5; | |
3348 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
3349 | rates[i].hw_value_short = i; | |
3350 | rates[i].flags = 0; | |
3351 | if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { | |
3352 | /* | |
3353 | * If CCK != 1M then set short preamble rate flag. | |
3354 | */ | |
3355 | rates[i].flags |= | |
3356 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? | |
3357 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; | |
3358 | } | |
3359 | } | |
3360 | } | |
3361 | ||
3362 | static int iwl_init_drv(struct iwl_priv *priv) | |
3363 | { | |
3364 | int ret; | |
3365 | ||
89f186a8 RC |
3366 | spin_lock_init(&priv->sta_lock); |
3367 | spin_lock_init(&priv->hcmd_lock); | |
3368 | ||
89f186a8 RC |
3369 | mutex_init(&priv->mutex); |
3370 | ||
89f186a8 RC |
3371 | priv->ieee_channels = NULL; |
3372 | priv->ieee_rates = NULL; | |
3373 | priv->band = IEEE80211_BAND_2GHZ; | |
3374 | ||
3375 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
ba37a3d0 | 3376 | priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; |
a13d276f | 3377 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; |
898ed67b | 3378 | priv->agg_tids_count = 0; |
89f186a8 | 3379 | |
8a472da4 WYG |
3380 | /* initialize force reset */ |
3381 | priv->force_reset[IWL_RF_RESET].reset_duration = | |
3382 | IWL_DELAY_NEXT_FORCE_RF_RESET; | |
3383 | priv->force_reset[IWL_FW_RESET].reset_duration = | |
3384 | IWL_DELAY_NEXT_FORCE_FW_RELOAD; | |
89f186a8 | 3385 | |
410f2bb3 SG |
3386 | priv->rx_statistics_jiffies = jiffies; |
3387 | ||
89f186a8 | 3388 | /* Choose which receivers/antennas to use */ |
e3f10cea | 3389 | iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); |
89f186a8 RC |
3390 | |
3391 | iwl_init_scan_params(priv); | |
3392 | ||
22bf59a0 | 3393 | /* init bt coex */ |
7cb1b088 WYG |
3394 | if (priv->cfg->bt_params && |
3395 | priv->cfg->bt_params->advanced_bt_coexist) { | |
b6e116e8 WYG |
3396 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
3397 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
3398 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; | |
22bf59a0 WYG |
3399 | priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; |
3400 | priv->bt_duration = BT_DURATION_LIMIT_DEF; | |
3401 | priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; | |
22bf59a0 WYG |
3402 | } |
3403 | ||
89f186a8 RC |
3404 | ret = iwl_init_channel_map(priv); |
3405 | if (ret) { | |
3406 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); | |
3407 | goto err; | |
3408 | } | |
3409 | ||
3410 | ret = iwlcore_init_geos(priv); | |
3411 | if (ret) { | |
3412 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
3413 | goto err_free_channel_map; | |
3414 | } | |
3415 | iwl_init_hw_rates(priv, priv->ieee_rates); | |
3416 | ||
3417 | return 0; | |
3418 | ||
3419 | err_free_channel_map: | |
3420 | iwl_free_channel_map(priv); | |
3421 | err: | |
3422 | return ret; | |
3423 | } | |
3424 | ||
3425 | static void iwl_uninit_drv(struct iwl_priv *priv) | |
3426 | { | |
3427 | iwl_calib_free_results(priv); | |
3428 | iwlcore_free_geos(priv); | |
3429 | iwl_free_channel_map(priv); | |
811ecc99 | 3430 | kfree(priv->scan_cmd); |
4ce7cc2b | 3431 | kfree(priv->beacon_cmd); |
c8ac61cf JB |
3432 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
3433 | kfree(priv->wowlan_sram); | |
3434 | #endif | |
89f186a8 RC |
3435 | } |
3436 | ||
3a3b14c2 | 3437 | static void iwl_mac_rssi_callback(struct ieee80211_hw *hw, |
207ecc5e MV |
3438 | enum ieee80211_rssi_event rssi_event) |
3439 | { | |
3440 | struct iwl_priv *priv = hw->priv; | |
3441 | ||
3442 | mutex_lock(&priv->mutex); | |
3443 | ||
3444 | if (priv->cfg->bt_params && | |
3445 | priv->cfg->bt_params->advanced_bt_coexist) { | |
3446 | if (rssi_event == RSSI_EVENT_LOW) | |
3447 | priv->bt_enable_pspoll = true; | |
3448 | else if (rssi_event == RSSI_EVENT_HIGH) | |
3449 | priv->bt_enable_pspoll = false; | |
3450 | ||
3451 | iwlagn_send_advance_bt_config(priv); | |
3452 | } else { | |
3453 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
3454 | "ignoring RSSI callback\n"); | |
3455 | } | |
3456 | ||
3457 | mutex_unlock(&priv->mutex); | |
3458 | } | |
3459 | ||
dc21b545 | 3460 | struct ieee80211_ops iwlagn_hw_ops = { |
2295c66b JB |
3461 | .tx = iwlagn_mac_tx, |
3462 | .start = iwlagn_mac_start, | |
3463 | .stop = iwlagn_mac_stop, | |
c8ac61cf JB |
3464 | .suspend = iwlagn_mac_suspend, |
3465 | .resume = iwlagn_mac_resume, | |
5b9f8cd3 EG |
3466 | .add_interface = iwl_mac_add_interface, |
3467 | .remove_interface = iwl_mac_remove_interface, | |
d4daaea6 | 3468 | .change_interface = iwl_mac_change_interface, |
2295c66b | 3469 | .config = iwlagn_mac_config, |
8b8ab9d5 | 3470 | .configure_filter = iwlagn_configure_filter, |
2295c66b JB |
3471 | .set_key = iwlagn_mac_set_key, |
3472 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
c8ac61cf | 3473 | .set_rekey_data = iwlagn_mac_set_rekey_data, |
5b9f8cd3 | 3474 | .conf_tx = iwl_mac_conf_tx, |
2295c66b JB |
3475 | .bss_info_changed = iwlagn_bss_info_changed, |
3476 | .ampdu_action = iwlagn_mac_ampdu_action, | |
6ab10ff8 | 3477 | .hw_scan = iwl_mac_hw_scan, |
2295c66b | 3478 | .sta_notify = iwlagn_mac_sta_notify, |
fe6b23dd RC |
3479 | .sta_add = iwlagn_mac_sta_add, |
3480 | .sta_remove = iwl_mac_sta_remove, | |
2295c66b JB |
3481 | .channel_switch = iwlagn_mac_channel_switch, |
3482 | .flush = iwlagn_mac_flush, | |
a85d7cca | 3483 | .tx_last_beacon = iwl_mac_tx_last_beacon, |
9b9190d9 JB |
3484 | .remain_on_channel = iwl_mac_remain_on_channel, |
3485 | .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel, | |
266af4c7 JB |
3486 | .offchannel_tx = iwl_mac_offchannel_tx, |
3487 | .offchannel_tx_cancel_wait = iwl_mac_offchannel_tx_cancel_wait, | |
207ecc5e | 3488 | .rssi_callback = iwl_mac_rssi_callback, |
4613e72d | 3489 | CFG80211_TESTMODE_CMD(iwl_testmode_cmd) |
eb64dca0 | 3490 | CFG80211_TESTMODE_DUMP(iwl_testmode_dump) |
b481de9c ZY |
3491 | }; |
3492 | ||
e98a1302 | 3493 | static u32 iwl_hw_detect(struct iwl_priv *priv) |
3867fe04 | 3494 | { |
02a7fa00 | 3495 | return iwl_read32(priv, CSR_HW_REV); |
3867fe04 WYG |
3496 | } |
3497 | ||
07d4f1ad WYG |
3498 | static int iwl_set_hw_params(struct iwl_priv *priv) |
3499 | { | |
3500 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; | |
3501 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
9d143e9a | 3502 | if (iwlagn_mod_params.amsdu_size_8K) |
07d4f1ad WYG |
3503 | priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K); |
3504 | else | |
3505 | priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K); | |
3506 | ||
3507 | priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; | |
3508 | ||
9d143e9a | 3509 | if (iwlagn_mod_params.disable_11n) |
88950758 | 3510 | priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE; |
07d4f1ad WYG |
3511 | |
3512 | /* Device-specific setup */ | |
90c300cb | 3513 | return priv->cfg->lib->set_hw_params(priv); |
07d4f1ad WYG |
3514 | } |
3515 | ||
e72f368b JB |
3516 | static const u8 iwlagn_bss_ac_to_fifo[] = { |
3517 | IWL_TX_FIFO_VO, | |
3518 | IWL_TX_FIFO_VI, | |
3519 | IWL_TX_FIFO_BE, | |
3520 | IWL_TX_FIFO_BK, | |
3521 | }; | |
3522 | ||
3523 | static const u8 iwlagn_bss_ac_to_queue[] = { | |
3524 | 0, 1, 2, 3, | |
3525 | }; | |
3526 | ||
3527 | static const u8 iwlagn_pan_ac_to_fifo[] = { | |
3528 | IWL_TX_FIFO_VO_IPAN, | |
3529 | IWL_TX_FIFO_VI_IPAN, | |
3530 | IWL_TX_FIFO_BE_IPAN, | |
3531 | IWL_TX_FIFO_BK_IPAN, | |
3532 | }; | |
3533 | ||
3534 | static const u8 iwlagn_pan_ac_to_queue[] = { | |
3535 | 7, 6, 5, 4, | |
3536 | }; | |
3537 | ||
119ea186 WYG |
3538 | /* This function both allocates and initializes hw and priv. */ |
3539 | static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg) | |
3540 | { | |
3541 | struct iwl_priv *priv; | |
3542 | /* mac80211 allocates memory for this device instance, including | |
3543 | * space for this driver's private structure */ | |
3544 | struct ieee80211_hw *hw; | |
3545 | ||
3546 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops); | |
3547 | if (hw == NULL) { | |
3548 | pr_err("%s: Can not allocate network device\n", | |
3549 | cfg->name); | |
3550 | goto out; | |
3551 | } | |
3552 | ||
3553 | priv = hw->priv; | |
3554 | priv->hw = hw; | |
3555 | ||
3556 | out: | |
3557 | return hw; | |
3558 | } | |
3559 | ||
b2ea345e | 3560 | static void iwl_init_context(struct iwl_priv *priv) |
b481de9c | 3561 | { |
b2ea345e | 3562 | int i; |
1d0a082d | 3563 | |
246ed355 JB |
3564 | /* |
3565 | * The default context is always valid, | |
3566 | * more may be discovered when firmware | |
3567 | * is loaded. | |
3568 | */ | |
3569 | priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); | |
3570 | ||
3571 | for (i = 0; i < NUM_IWL_RXON_CTX; i++) | |
3572 | priv->contexts[i].ctxid = i; | |
3573 | ||
763cc3bf JB |
3574 | priv->contexts[IWL_RXON_CTX_BSS].always_active = true; |
3575 | priv->contexts[IWL_RXON_CTX_BSS].is_active = true; | |
8f2d3d2a JB |
3576 | priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; |
3577 | priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; | |
3578 | priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; | |
8dfdb9d5 | 3579 | priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; |
2995bafa | 3580 | priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; |
c10afb6e | 3581 | priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; |
e72f368b JB |
3582 | priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo; |
3583 | priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue; | |
d0fe478c JB |
3584 | priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = |
3585 | BIT(NL80211_IFTYPE_ADHOC); | |
3586 | priv->contexts[IWL_RXON_CTX_BSS].interface_modes = | |
3587 | BIT(NL80211_IFTYPE_STATION); | |
2295c66b | 3588 | priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; |
d0fe478c JB |
3589 | priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; |
3590 | priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; | |
3591 | priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; | |
ece9c4ee JB |
3592 | |
3593 | priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; | |
b2ea345e WYG |
3594 | priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = |
3595 | REPLY_WIPAN_RXON_TIMING; | |
3596 | priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = | |
3597 | REPLY_WIPAN_RXON_ASSOC; | |
ece9c4ee JB |
3598 | priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; |
3599 | priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; | |
3600 | priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; | |
3601 | priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; | |
3602 | priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; | |
e72f368b JB |
3603 | priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo; |
3604 | priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue; | |
3605 | priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE; | |
d0fe478c JB |
3606 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes = |
3607 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); | |
f35c0c56 WYG |
3608 | #ifdef CONFIG_IWL_P2P |
3609 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= | |
3610 | BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO); | |
3611 | #endif | |
d0fe478c JB |
3612 | priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; |
3613 | priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; | |
3614 | priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; | |
ece9c4ee JB |
3615 | |
3616 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
b2ea345e WYG |
3617 | } |
3618 | ||
d5934110 | 3619 | int iwl_probe(struct iwl_bus *bus, struct iwl_cfg *cfg) |
b2ea345e WYG |
3620 | { |
3621 | int err = 0; | |
3622 | struct iwl_priv *priv; | |
3623 | struct ieee80211_hw *hw; | |
084dd791 | 3624 | u16 num_mac; |
b2ea345e WYG |
3625 | u32 hw_rev; |
3626 | ||
3627 | /************************ | |
3628 | * 1. Allocating HW data | |
3629 | ************************/ | |
b2ea345e WYG |
3630 | hw = iwl_alloc_all(cfg); |
3631 | if (!hw) { | |
3632 | err = -ENOMEM; | |
807caf26 EG |
3633 | goto out; |
3634 | } | |
3635 | ||
b2ea345e | 3636 | priv = hw->priv; |
d5934110 EG |
3637 | priv->bus = bus; |
3638 | bus_set_drv_data(priv->bus, priv); | |
a48709c5 | 3639 | |
b2ea345e | 3640 | /* At this point both hw and priv are allocated. */ |
8f2d3d2a | 3641 | |
d5934110 | 3642 | SET_IEEE80211_DEV(hw, priv->bus->dev); |
b481de9c | 3643 | |
e1623446 | 3644 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
82b9a121 | 3645 | priv->cfg = cfg; |
40cefda9 | 3646 | priv->inta_mask = CSR_INI_SET_MASK; |
316c30d9 | 3647 | |
bee008b7 WYG |
3648 | /* is antenna coupling more than 35dB ? */ |
3649 | priv->bt_ant_couple_ok = | |
3650 | (iwlagn_ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? | |
3651 | true : false; | |
3652 | ||
9f28ebc3 | 3653 | /* enable/disable bt channel inhibition */ |
f37837c9 | 3654 | priv->bt_ch_announce = iwlagn_bt_ch_announce; |
9f28ebc3 WYG |
3655 | IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", |
3656 | (priv->bt_ch_announce) ? "On" : "Off"); | |
f37837c9 | 3657 | |
20594eb0 WYG |
3658 | if (iwl_alloc_traffic_mem(priv)) |
3659 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 3660 | |
731a29b7 | 3661 | /* these spin locks will be used in apm_ops.init and EEPROM access |
a8b50a0a MA |
3662 | * we should init now |
3663 | */ | |
3664 | spin_lock_init(&priv->reg_lock); | |
731a29b7 | 3665 | spin_lock_init(&priv->lock); |
4843b5a7 RC |
3666 | |
3667 | /* | |
3668 | * stop and reset the on-board processor just in case it is in a | |
3669 | * strange state ... like being left stranded by a primary kernel | |
3670 | * and this is now the kdump kernel trying to start up | |
3671 | */ | |
3672 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); | |
3673 | ||
084dd791 EG |
3674 | /*********************** |
3675 | * 3. Read REV register | |
3676 | ***********************/ | |
e98a1302 | 3677 | hw_rev = iwl_hw_detect(priv); |
c11362c0 | 3678 | IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
e98a1302 | 3679 | priv->cfg->name, hw_rev); |
316c30d9 | 3680 | |
1e89cbac EG |
3681 | err = iwl_trans_register(&priv->trans, priv); |
3682 | if (err) | |
3683 | goto out_free_traffic_mem; | |
3684 | ||
41c50542 | 3685 | if (trans_prepare_card_hw(&priv->trans)) { |
bcd4fe2f | 3686 | err = -EIO; |
086ed117 | 3687 | IWL_WARN(priv, "Failed, HW not ready\n"); |
1e89cbac | 3688 | goto out_free_trans; |
086ed117 MA |
3689 | } |
3690 | ||
91238714 TW |
3691 | /***************** |
3692 | * 4. Read EEPROM | |
3693 | *****************/ | |
316c30d9 | 3694 | /* Read the EEPROM */ |
e98a1302 | 3695 | err = iwl_eeprom_init(priv, hw_rev); |
316c30d9 | 3696 | if (err) { |
15b1687c | 3697 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
1e89cbac | 3698 | goto out_free_trans; |
316c30d9 | 3699 | } |
8614f360 TW |
3700 | err = iwl_eeprom_check_version(priv); |
3701 | if (err) | |
c8f16138 | 3702 | goto out_free_eeprom; |
8614f360 | 3703 | |
21a5b3c6 WYG |
3704 | err = iwl_eeprom_check_sku(priv); |
3705 | if (err) | |
3706 | goto out_free_eeprom; | |
3707 | ||
02883017 | 3708 | /* extract MAC Address */ |
c6fa17ed WYG |
3709 | iwl_eeprom_get_mac(priv, priv->addresses[0].addr); |
3710 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); | |
3711 | priv->hw->wiphy->addresses = priv->addresses; | |
3712 | priv->hw->wiphy->n_addresses = 1; | |
3713 | num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS); | |
3714 | if (num_mac > 1) { | |
3715 | memcpy(priv->addresses[1].addr, priv->addresses[0].addr, | |
3716 | ETH_ALEN); | |
3717 | priv->addresses[1].addr[5]++; | |
3718 | priv->hw->wiphy->n_addresses++; | |
3719 | } | |
316c30d9 | 3720 | |
b2ea345e WYG |
3721 | /* initialize all valid contexts */ |
3722 | iwl_init_context(priv); | |
3723 | ||
316c30d9 AK |
3724 | /************************ |
3725 | * 5. Setup HW constants | |
3726 | ************************/ | |
da154e30 | 3727 | if (iwl_set_hw_params(priv)) { |
084dd791 | 3728 | err = -ENOENT; |
15b1687c | 3729 | IWL_ERR(priv, "failed to set hw parameters\n"); |
073d3f5f | 3730 | goto out_free_eeprom; |
316c30d9 AK |
3731 | } |
3732 | ||
3733 | /******************* | |
6ba87956 | 3734 | * 6. Setup priv |
316c30d9 | 3735 | *******************/ |
b481de9c | 3736 | |
6ba87956 | 3737 | err = iwl_init_drv(priv); |
bf85ea4f | 3738 | if (err) |
399f4900 | 3739 | goto out_free_eeprom; |
bf85ea4f | 3740 | /* At this point both hw and priv are initialized. */ |
316c30d9 | 3741 | |
316c30d9 | 3742 | /******************** |
09f9bf79 | 3743 | * 7. Setup services |
316c30d9 | 3744 | ********************/ |
4e39317d | 3745 | iwl_setup_deferred_work(priv); |
653fa4a0 | 3746 | iwl_setup_rx_handlers(priv); |
4613e72d | 3747 | iwl_testmode_init(priv); |
316c30d9 | 3748 | |
158bea07 | 3749 | /********************************************* |
084dd791 | 3750 | * 8. Enable interrupts |
158bea07 | 3751 | *********************************************/ |
6ba87956 | 3752 | |
554d1d02 | 3753 | iwl_enable_rfkill_int(priv); |
6cd0b1cb | 3754 | |
6cd0b1cb HS |
3755 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3756 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
3757 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3758 | else | |
3759 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6ba87956 | 3760 | |
a60e77e5 JB |
3761 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
3762 | test_bit(STATUS_RF_KILL_HW, &priv->status)); | |
6cd0b1cb | 3763 | |
58d0f361 | 3764 | iwl_power_initialize(priv); |
39b73fb1 | 3765 | iwl_tt_initialize(priv); |
158bea07 | 3766 | |
898ed67b | 3767 | init_completion(&priv->firmware_loading_complete); |
562db532 | 3768 | |
b08dfd04 | 3769 | err = iwl_request_firmware(priv, true); |
158bea07 | 3770 | if (err) |
7d47618a | 3771 | goto out_destroy_workqueue; |
158bea07 | 3772 | |
b481de9c ZY |
3773 | return 0; |
3774 | ||
34c1b7ba | 3775 | out_destroy_workqueue: |
c8f16138 RC |
3776 | destroy_workqueue(priv->workqueue); |
3777 | priv->workqueue = NULL; | |
6ba87956 | 3778 | iwl_uninit_drv(priv); |
34c1b7ba | 3779 | out_free_eeprom: |
073d3f5f | 3780 | iwl_eeprom_free(priv); |
1e89cbac EG |
3781 | out_free_trans: |
3782 | trans_free(&priv->trans); | |
34c1b7ba | 3783 | out_free_traffic_mem: |
20594eb0 | 3784 | iwl_free_traffic_mem(priv); |
d7c76f4c | 3785 | ieee80211_free_hw(priv->hw); |
34c1b7ba | 3786 | out: |
b481de9c ZY |
3787 | return err; |
3788 | } | |
3789 | ||
a48709c5 | 3790 | void __devexit iwl_remove(struct iwl_priv * priv) |
b481de9c | 3791 | { |
0359facc | 3792 | unsigned long flags; |
b481de9c | 3793 | |
898ed67b | 3794 | wait_for_completion(&priv->firmware_loading_complete); |
562db532 | 3795 | |
e1623446 | 3796 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 3797 | |
67249625 | 3798 | iwl_dbgfs_unregister(priv); |
d5934110 | 3799 | sysfs_remove_group(&priv->bus->dev->kobj, |
3599d39a | 3800 | &iwl_attribute_group); |
67249625 | 3801 | |
5b9f8cd3 EG |
3802 | /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
3803 | * to be called and iwl_down since we are removing the device | |
0b124c31 GG |
3804 | * we need to set STATUS_EXIT_PENDING bit. |
3805 | */ | |
3806 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5ed540ae | 3807 | |
7a4e5281 | 3808 | iwl_testmode_cleanup(priv); |
5ed540ae WYG |
3809 | iwl_leds_exit(priv); |
3810 | ||
c4f55232 RR |
3811 | if (priv->mac80211_registered) { |
3812 | ieee80211_unregister_hw(priv->hw); | |
3813 | priv->mac80211_registered = 0; | |
3814 | } | |
3815 | ||
1a10f433 | 3816 | /* Reset to low power before unloading driver. */ |
14e8e4af | 3817 | iwl_apm_stop(priv); |
c166b25a | 3818 | |
39b73fb1 WYG |
3819 | iwl_tt_exit(priv); |
3820 | ||
0359facc MA |
3821 | /* make sure we flush any pending irq or |
3822 | * tasklet for the driver | |
3823 | */ | |
3824 | spin_lock_irqsave(&priv->lock, flags); | |
5b9f8cd3 | 3825 | iwl_disable_interrupts(priv); |
0359facc MA |
3826 | spin_unlock_irqrestore(&priv->lock, flags); |
3827 | ||
41c50542 | 3828 | trans_sync_irq(&priv->trans); |
0359facc | 3829 | |
3599d39a | 3830 | iwl_dealloc_ucode(priv); |
b481de9c | 3831 | |
41c50542 EG |
3832 | trans_rx_free(&priv->trans); |
3833 | trans_tx_free(&priv->trans); | |
b481de9c | 3834 | |
073d3f5f | 3835 | iwl_eeprom_free(priv); |
b481de9c | 3836 | |
948c171c MA |
3837 | /*netif_stop_queue(dev); */ |
3838 | flush_workqueue(priv->workqueue); | |
3839 | ||
5b9f8cd3 | 3840 | /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
b481de9c ZY |
3841 | * priv->workqueue... so we can't take down the workqueue |
3842 | * until now... */ | |
3843 | destroy_workqueue(priv->workqueue); | |
3844 | priv->workqueue = NULL; | |
20594eb0 | 3845 | iwl_free_traffic_mem(priv); |
b481de9c | 3846 | |
41c50542 | 3847 | trans_free(&priv->trans); |
34c1b7ba | 3848 | |
d5934110 | 3849 | bus_set_drv_data(priv->bus, NULL); |
b481de9c | 3850 | |
6ba87956 | 3851 | iwl_uninit_drv(priv); |
b481de9c | 3852 | |
77834543 | 3853 | dev_kfree_skb(priv->beacon_skb); |
b481de9c ZY |
3854 | |
3855 | ieee80211_free_hw(priv->hw); | |
3856 | } | |
3857 | ||
b481de9c ZY |
3858 | |
3859 | /***************************************************************************** | |
3860 | * | |
3861 | * driver and module entry point | |
3862 | * | |
3863 | *****************************************************************************/ | |
5b9f8cd3 | 3864 | static int __init iwl_init(void) |
b481de9c ZY |
3865 | { |
3866 | ||
3867 | int ret; | |
c96c31e4 JP |
3868 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
3869 | pr_info(DRV_COPYRIGHT "\n"); | |
897e1cf2 | 3870 | |
e227ceac | 3871 | ret = iwlagn_rate_control_register(); |
897e1cf2 | 3872 | if (ret) { |
c96c31e4 | 3873 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
897e1cf2 RC |
3874 | return ret; |
3875 | } | |
3876 | ||
48d1a211 | 3877 | ret = iwl_pci_register_driver(); |
b481de9c | 3878 | |
48d1a211 EG |
3879 | if (ret) |
3880 | goto error_register; | |
b481de9c | 3881 | return ret; |
897e1cf2 | 3882 | |
897e1cf2 | 3883 | error_register: |
e227ceac | 3884 | iwlagn_rate_control_unregister(); |
897e1cf2 | 3885 | return ret; |
b481de9c ZY |
3886 | } |
3887 | ||
5b9f8cd3 | 3888 | static void __exit iwl_exit(void) |
b481de9c | 3889 | { |
48d1a211 | 3890 | iwl_pci_unregister_driver(); |
e227ceac | 3891 | iwlagn_rate_control_unregister(); |
b481de9c ZY |
3892 | } |
3893 | ||
5b9f8cd3 EG |
3894 | module_exit(iwl_exit); |
3895 | module_init(iwl_init); | |
a562a9dd RC |
3896 | |
3897 | #ifdef CONFIG_IWLWIFI_DEBUG | |
4e30cb69 | 3898 | module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); |
a562a9dd RC |
3899 | MODULE_PARM_DESC(debug, "debug output mask"); |
3900 | #endif | |
3901 | ||
2b068618 WYG |
3902 | module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); |
3903 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); | |
2b068618 WYG |
3904 | module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO); |
3905 | MODULE_PARM_DESC(queues_num, "number of hw queues."); | |
2b068618 WYG |
3906 | module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO); |
3907 | MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); | |
2b068618 WYG |
3908 | module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, |
3909 | int, S_IRUGO); | |
3910 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); | |
2b068618 WYG |
3911 | module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); |
3912 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); | |
dd7a2509 JB |
3913 | |
3914 | module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int, | |
3915 | S_IRUGO); | |
3916 | MODULE_PARM_DESC(ucode_alternative, | |
3917 | "specify ucode alternative to use from ucode file"); | |
bee008b7 WYG |
3918 | |
3919 | module_param_named(antenna_coupling, iwlagn_ant_coupling, int, S_IRUGO); | |
3920 | MODULE_PARM_DESC(antenna_coupling, | |
3921 | "specify antenna coupling in dB (defualt: 0 dB)"); | |
f37837c9 | 3922 | |
9f28ebc3 WYG |
3923 | module_param_named(bt_ch_inhibition, iwlagn_bt_ch_announce, bool, S_IRUGO); |
3924 | MODULE_PARM_DESC(bt_ch_inhibition, | |
3925 | "Disable BT channel inhibition (default: enable)"); | |
b7977ffa SG |
3926 | |
3927 | module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); | |
3928 | MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); | |
3929 | ||
3930 | module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); | |
3931 | MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); | |
b60eec9b | 3932 | |
300d0834 WYG |
3933 | module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO); |
3934 | MODULE_PARM_DESC(wd_disable, | |
3935 | "Disable stuck queue watchdog timer (default: 0 [enabled])"); | |
3936 | ||
b60eec9b WYG |
3937 | /* |
3938 | * set bt_coex_active to true, uCode will do kill/defer | |
3939 | * every time the priority line is asserted (BT is sending signals on the | |
3940 | * priority line in the PCIx). | |
3941 | * set bt_coex_active to false, uCode will ignore the BT activity and | |
3942 | * perform the normal operation | |
3943 | * | |
3944 | * User might experience transmit issue on some platform due to WiFi/BT | |
3945 | * co-exist problem. The possible behaviors are: | |
3946 | * Able to scan and finding all the available AP | |
3947 | * Not able to associate with any AP | |
3948 | * On those platforms, WiFi communication can be restored by set | |
3949 | * "bt_coex_active" module parameter to "false" | |
3950 | * | |
3951 | * default: bt_coex_active = true (BT_COEX_ENABLE) | |
3952 | */ | |
3953 | module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active, | |
3954 | bool, S_IRUGO); | |
3955 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); | |
6b0184c4 WYG |
3956 | |
3957 | module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO); | |
3958 | MODULE_PARM_DESC(led_mode, "0=system default, " | |
3959 | "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)"); | |
3f1e5f4a | 3960 | |
0172b029 WYG |
3961 | module_param_named(power_save, iwlagn_mod_params.power_save, |
3962 | bool, S_IRUGO); | |
3963 | MODULE_PARM_DESC(power_save, | |
3964 | "enable WiFi power management (default: disable)"); | |
3965 | ||
f7538168 WYG |
3966 | module_param_named(power_level, iwlagn_mod_params.power_level, |
3967 | int, S_IRUGO); | |
3968 | MODULE_PARM_DESC(power_level, | |
3969 | "default power save level (range from 1 - 5, default: 1)"); | |
3970 | ||
3f1e5f4a WYG |
3971 | /* |
3972 | * For now, keep using power level 1 instead of automatically | |
3973 | * adjusting ... | |
3974 | */ | |
3975 | module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust, | |
3976 | bool, S_IRUGO); | |
3977 | MODULE_PARM_DESC(no_sleep_autoadjust, | |
3978 | "don't automatically adjust sleep level " | |
3979 | "according to maximum network latency (default: true)"); |