Commit | Line | Data |
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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
4e318262 | 3 | * Copyright(c) 2003 - 2012 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 | 33 | #include <linux/delay.h> |
d43c36dc | 34 | #include <linux/sched.h> |
b481de9c ZY |
35 | #include <linux/skbuff.h> |
36 | #include <linux/netdevice.h> | |
b481de9c ZY |
37 | #include <linux/etherdevice.h> |
38 | #include <linux/if_arp.h> | |
39 | ||
b481de9c ZY |
40 | #include <net/mac80211.h> |
41 | ||
42 | #include <asm/div64.h> | |
43 | ||
6bc913bd | 44 | #include "iwl-eeprom.h" |
3e0d4cb1 | 45 | #include "iwl-dev.h" |
fee1247a | 46 | #include "iwl-core.h" |
3395f6e9 | 47 | #include "iwl-io.h" |
0de76736 | 48 | #include "iwl-agn-calib.h" |
a1175124 | 49 | #include "iwl-agn.h" |
48f20d35 | 50 | #include "iwl-shared.h" |
c85eb619 | 51 | #include "iwl-trans.h" |
d0f76d68 | 52 | #include "iwl-op-mode.h" |
416e1438 | 53 | |
b481de9c ZY |
54 | /****************************************************************************** |
55 | * | |
56 | * module boiler plate | |
57 | * | |
58 | ******************************************************************************/ | |
59 | ||
b481de9c ZY |
60 | /* |
61 | * module name, copyright, version, etc. | |
b481de9c | 62 | */ |
d783b061 | 63 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
b481de9c | 64 | |
0a6857e7 | 65 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
66 | #define VD "d" |
67 | #else | |
68 | #define VD | |
69 | #endif | |
70 | ||
81963d68 | 71 | #define DRV_VERSION IWLWIFI_VERSION VD |
b481de9c | 72 | |
b481de9c ZY |
73 | |
74 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
75 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 76 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c | 77 | MODULE_LICENSE("GPL"); |
3c607d27 | 78 | MODULE_ALIAS("iwlagn"); |
b481de9c | 79 | |
5b9f8cd3 | 80 | void iwl_update_chain_flags(struct iwl_priv *priv) |
5da4b55f | 81 | { |
246ed355 | 82 | struct iwl_rxon_context *ctx; |
5da4b55f | 83 | |
e3f10cea WYG |
84 | for_each_context(priv, ctx) { |
85 | iwlagn_set_rxon_chain(priv, ctx); | |
86 | if (ctx->active.rx_chain != ctx->staging.rx_chain) | |
87 | iwlagn_commit_rxon(priv, ctx); | |
246ed355 | 88 | } |
5da4b55f MA |
89 | } |
90 | ||
47ff65c4 DH |
91 | /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
92 | static void iwl_set_beacon_tim(struct iwl_priv *priv, | |
77834543 JB |
93 | struct iwl_tx_beacon_cmd *tx_beacon_cmd, |
94 | u8 *beacon, u32 frame_size) | |
47ff65c4 DH |
95 | { |
96 | u16 tim_idx; | |
97 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; | |
98 | ||
99 | /* | |
100 | * The index is relative to frame start but we start looking at the | |
101 | * variable-length part of the beacon. | |
102 | */ | |
103 | tim_idx = mgmt->u.beacon.variable - beacon; | |
104 | ||
105 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ | |
106 | while ((tim_idx < (frame_size - 2)) && | |
107 | (beacon[tim_idx] != WLAN_EID_TIM)) | |
108 | tim_idx += beacon[tim_idx+1] + 2; | |
109 | ||
110 | /* If TIM field was found, set variables */ | |
111 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { | |
112 | tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); | |
113 | tx_beacon_cmd->tim_size = beacon[tim_idx+1]; | |
114 | } else | |
115 | IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); | |
116 | } | |
117 | ||
8a98d49e | 118 | int iwlagn_send_beacon_cmd(struct iwl_priv *priv) |
4bf64efd TW |
119 | { |
120 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; | |
8a98d49e JB |
121 | struct iwl_host_cmd cmd = { |
122 | .id = REPLY_TX_BEACON, | |
e419d62d | 123 | .flags = CMD_SYNC, |
8a98d49e | 124 | }; |
0b5b3ff1 | 125 | struct ieee80211_tx_info *info; |
47ff65c4 DH |
126 | u32 frame_size; |
127 | u32 rate_flags; | |
128 | u32 rate; | |
8a98d49e | 129 | |
47ff65c4 DH |
130 | /* |
131 | * We have to set up the TX command, the TX Beacon command, and the | |
132 | * beacon contents. | |
133 | */ | |
4bf64efd | 134 | |
b1eea297 | 135 | lockdep_assert_held(&priv->mutex); |
76d04815 JB |
136 | |
137 | if (!priv->beacon_ctx) { | |
138 | IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); | |
950094cb | 139 | return 0; |
76d04815 JB |
140 | } |
141 | ||
8a98d49e JB |
142 | if (WARN_ON(!priv->beacon_skb)) |
143 | return -EINVAL; | |
144 | ||
4ce7cc2b JB |
145 | /* Allocate beacon command */ |
146 | if (!priv->beacon_cmd) | |
147 | priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); | |
148 | tx_beacon_cmd = priv->beacon_cmd; | |
8a98d49e JB |
149 | if (!tx_beacon_cmd) |
150 | return -ENOMEM; | |
151 | ||
152 | frame_size = priv->beacon_skb->len; | |
4bf64efd | 153 | |
47ff65c4 | 154 | /* Set up TX command fields */ |
4bf64efd | 155 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
76d04815 | 156 | tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; |
47ff65c4 DH |
157 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
158 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | | |
159 | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; | |
4bf64efd | 160 | |
47ff65c4 | 161 | /* Set up TX beacon command fields */ |
4ce7cc2b | 162 | iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, |
77834543 | 163 | frame_size); |
4bf64efd | 164 | |
47ff65c4 | 165 | /* Set up packet rate and flags */ |
0b5b3ff1 JB |
166 | info = IEEE80211_SKB_CB(priv->beacon_skb); |
167 | ||
168 | /* | |
169 | * Let's set up the rate at least somewhat correctly; | |
170 | * it will currently not actually be used by the uCode, | |
171 | * it uses the broadcast station's rate instead. | |
172 | */ | |
173 | if (info->control.rates[0].idx < 0 || | |
174 | info->control.rates[0].flags & IEEE80211_TX_RC_MCS) | |
175 | rate = 0; | |
176 | else | |
177 | rate = info->control.rates[0].idx; | |
178 | ||
0e1654fa | 179 | priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, |
d6189124 | 180 | hw_params(priv).valid_tx_ant); |
47ff65c4 | 181 | rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); |
0b5b3ff1 JB |
182 | |
183 | /* In mac80211, rates for 5 GHz start at 0 */ | |
184 | if (info->band == IEEE80211_BAND_5GHZ) | |
185 | rate += IWL_FIRST_OFDM_RATE; | |
186 | else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) | |
47ff65c4 | 187 | rate_flags |= RATE_MCS_CCK_MSK; |
0b5b3ff1 JB |
188 | |
189 | tx_beacon_cmd->tx.rate_n_flags = | |
190 | iwl_hw_set_rate_n_flags(rate, rate_flags); | |
4bf64efd | 191 | |
8a98d49e | 192 | /* Submit command */ |
4ce7cc2b | 193 | cmd.len[0] = sizeof(*tx_beacon_cmd); |
3fa50738 | 194 | cmd.data[0] = tx_beacon_cmd; |
4ce7cc2b JB |
195 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
196 | cmd.len[1] = frame_size; | |
197 | cmd.data[1] = priv->beacon_skb->data; | |
198 | cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; | |
7aaa1d79 | 199 | |
e10a0533 | 200 | return iwl_dvm_send_cmd(priv, &cmd); |
a8e74e27 SO |
201 | } |
202 | ||
5b9f8cd3 | 203 | static void iwl_bg_beacon_update(struct work_struct *work) |
b481de9c | 204 | { |
c79dd5b5 TW |
205 | struct iwl_priv *priv = |
206 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
207 | struct sk_buff *beacon; |
208 | ||
b1eea297 | 209 | mutex_lock(&priv->mutex); |
76d04815 JB |
210 | if (!priv->beacon_ctx) { |
211 | IWL_ERR(priv, "updating beacon w/o beacon context!\n"); | |
212 | goto out; | |
213 | } | |
b481de9c | 214 | |
60744f62 JB |
215 | if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { |
216 | /* | |
217 | * The ucode will send beacon notifications even in | |
218 | * IBSS mode, but we don't want to process them. But | |
219 | * we need to defer the type check to here due to | |
220 | * requiring locking around the beacon_ctx access. | |
221 | */ | |
222 | goto out; | |
223 | } | |
224 | ||
76d04815 JB |
225 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
226 | beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); | |
b481de9c | 227 | if (!beacon) { |
77834543 | 228 | IWL_ERR(priv, "update beacon failed -- keeping old\n"); |
76d04815 | 229 | goto out; |
b481de9c ZY |
230 | } |
231 | ||
b481de9c | 232 | /* new beacon skb is allocated every time; dispose previous.*/ |
77834543 | 233 | dev_kfree_skb(priv->beacon_skb); |
b481de9c | 234 | |
12e934dc | 235 | priv->beacon_skb = beacon; |
b481de9c | 236 | |
2295c66b | 237 | iwlagn_send_beacon_cmd(priv); |
76d04815 | 238 | out: |
b1eea297 | 239 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
240 | } |
241 | ||
fbba9410 WYG |
242 | static void iwl_bg_bt_runtime_config(struct work_struct *work) |
243 | { | |
244 | struct iwl_priv *priv = | |
245 | container_of(work, struct iwl_priv, bt_runtime_config); | |
246 | ||
83626404 | 247 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
fbba9410 WYG |
248 | return; |
249 | ||
250 | /* dont send host command if rf-kill is on */ | |
83626404 | 251 | if (!iwl_is_ready_rf(priv)) |
fbba9410 | 252 | return; |
e55b517c | 253 | iwlagn_send_advance_bt_config(priv); |
fbba9410 WYG |
254 | } |
255 | ||
bee008b7 WYG |
256 | static void iwl_bg_bt_full_concurrency(struct work_struct *work) |
257 | { | |
258 | struct iwl_priv *priv = | |
259 | container_of(work, struct iwl_priv, bt_full_concurrency); | |
246ed355 | 260 | struct iwl_rxon_context *ctx; |
bee008b7 | 261 | |
b1eea297 | 262 | mutex_lock(&priv->mutex); |
dc1a4068 | 263 | |
83626404 | 264 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
dc1a4068 | 265 | goto out; |
bee008b7 WYG |
266 | |
267 | /* dont send host command if rf-kill is on */ | |
83626404 | 268 | if (!iwl_is_ready_rf(priv)) |
dc1a4068 | 269 | goto out; |
bee008b7 WYG |
270 | |
271 | IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", | |
272 | priv->bt_full_concurrent ? | |
273 | "full concurrency" : "3-wire"); | |
274 | ||
275 | /* | |
276 | * LQ & RXON updated cmds must be sent before BT Config cmd | |
277 | * to avoid 3-wire collisions | |
278 | */ | |
246ed355 | 279 | for_each_context(priv, ctx) { |
e3f10cea | 280 | iwlagn_set_rxon_chain(priv, ctx); |
805a3b81 | 281 | iwlagn_commit_rxon(priv, ctx); |
246ed355 | 282 | } |
bee008b7 | 283 | |
e55b517c | 284 | iwlagn_send_advance_bt_config(priv); |
dc1a4068 | 285 | out: |
b1eea297 | 286 | mutex_unlock(&priv->mutex); |
bee008b7 WYG |
287 | } |
288 | ||
4e39317d | 289 | /** |
5b9f8cd3 | 290 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
4e39317d EG |
291 | * |
292 | * This callback is provided in order to send a statistics request. | |
293 | * | |
294 | * This timer function is continually reset to execute within | |
295 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
296 | * was received. We need to ensure we receive the statistics in order | |
297 | * to update the temperature used for calibrating the TXPOWER. | |
298 | */ | |
5b9f8cd3 | 299 | static void iwl_bg_statistics_periodic(unsigned long data) |
4e39317d EG |
300 | { |
301 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
302 | ||
83626404 | 303 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
4e39317d EG |
304 | return; |
305 | ||
61780ee3 | 306 | /* dont send host command if rf-kill is on */ |
83626404 | 307 | if (!iwl_is_ready_rf(priv)) |
61780ee3 MA |
308 | return; |
309 | ||
ef8d5529 | 310 | iwl_send_statistics_request(priv, CMD_ASYNC, false); |
4e39317d EG |
311 | } |
312 | ||
a9e1cb6a WYG |
313 | |
314 | static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, | |
315 | u32 start_idx, u32 num_events, | |
98d4bf0c | 316 | u32 capacity, u32 mode) |
a9e1cb6a WYG |
317 | { |
318 | u32 i; | |
319 | u32 ptr; /* SRAM byte address of log data */ | |
320 | u32 ev, time, data; /* event log data */ | |
321 | unsigned long reg_flags; | |
322 | ||
323 | if (mode == 0) | |
324 | ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); | |
325 | else | |
326 | ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); | |
327 | ||
328 | /* Make sure device is powered up for SRAM reads */ | |
1042db2a | 329 | spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags); |
bfe4b80e | 330 | if (unlikely(!iwl_grab_nic_access(trans(priv)))) { |
1042db2a | 331 | spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags); |
a9e1cb6a WYG |
332 | return; |
333 | } | |
334 | ||
335 | /* Set starting address; reads will auto-increment */ | |
1042db2a | 336 | iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr); |
a9e1cb6a | 337 | |
98d4bf0c JB |
338 | /* |
339 | * Refuse to read more than would have fit into the log from | |
340 | * the current start_idx. This used to happen due to the race | |
341 | * described below, but now WARN because the code below should | |
342 | * prevent it from happening here. | |
343 | */ | |
344 | if (WARN_ON(num_events > capacity - start_idx)) | |
345 | num_events = capacity - start_idx; | |
346 | ||
a9e1cb6a WYG |
347 | /* |
348 | * "time" is actually "data" for mode 0 (no timestamp). | |
349 | * place event id # at far right for easier visual parsing. | |
350 | */ | |
351 | for (i = 0; i < num_events; i++) { | |
1042db2a EG |
352 | ev = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); |
353 | time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); | |
a9e1cb6a | 354 | if (mode == 0) { |
6c1011e1 JB |
355 | trace_iwlwifi_dev_ucode_cont_event( |
356 | trans(priv)->dev, 0, time, ev); | |
a9e1cb6a | 357 | } else { |
1042db2a | 358 | data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); |
6c1011e1 JB |
359 | trace_iwlwifi_dev_ucode_cont_event( |
360 | trans(priv)->dev, time, data, ev); | |
a9e1cb6a WYG |
361 | } |
362 | } | |
363 | /* Allow device to power down */ | |
1042db2a EG |
364 | iwl_release_nic_access(trans(priv)); |
365 | spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags); | |
a9e1cb6a WYG |
366 | } |
367 | ||
875295f1 | 368 | static void iwl_continuous_event_trace(struct iwl_priv *priv) |
a9e1cb6a WYG |
369 | { |
370 | u32 capacity; /* event log capacity in # entries */ | |
98d4bf0c JB |
371 | struct { |
372 | u32 capacity; | |
373 | u32 mode; | |
374 | u32 wrap_counter; | |
375 | u32 write_counter; | |
376 | } __packed read; | |
a9e1cb6a WYG |
377 | u32 base; /* SRAM byte address of event log header */ |
378 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
379 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
380 | u32 next_entry; /* index of next entry to be written by uCode */ | |
381 | ||
2fdfc476 | 382 | base = priv->device_pointers.log_event_table; |
4caab328 | 383 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
1042db2a | 384 | iwl_read_targ_mem_words(trans(priv), base, &read, sizeof(read)); |
98d4bf0c JB |
385 | |
386 | capacity = read.capacity; | |
387 | mode = read.mode; | |
388 | num_wraps = read.wrap_counter; | |
389 | next_entry = read.write_counter; | |
a9e1cb6a WYG |
390 | } else |
391 | return; | |
392 | ||
98d4bf0c JB |
393 | /* |
394 | * Unfortunately, the uCode doesn't use temporary variables. | |
395 | * Therefore, it can happen that we read next_entry == capacity, | |
396 | * which really means next_entry == 0. | |
397 | */ | |
398 | if (unlikely(next_entry == capacity)) | |
399 | next_entry = 0; | |
400 | /* | |
401 | * Additionally, the uCode increases the write pointer before | |
402 | * the wraps counter, so if the write pointer is smaller than | |
403 | * the old write pointer (wrap occurred) but we read that no | |
404 | * wrap occurred, we actually read between the next_entry and | |
405 | * num_wraps update (this does happen in practice!!) -- take | |
406 | * that into account by increasing num_wraps. | |
407 | */ | |
408 | if (unlikely(next_entry < priv->event_log.next_entry && | |
409 | num_wraps == priv->event_log.num_wraps)) | |
410 | num_wraps++; | |
411 | ||
a9e1cb6a | 412 | if (num_wraps == priv->event_log.num_wraps) { |
98d4bf0c JB |
413 | iwl_print_cont_event_trace( |
414 | priv, base, priv->event_log.next_entry, | |
415 | next_entry - priv->event_log.next_entry, | |
416 | capacity, mode); | |
417 | ||
a9e1cb6a WYG |
418 | priv->event_log.non_wraps_count++; |
419 | } else { | |
98d4bf0c | 420 | if (num_wraps - priv->event_log.num_wraps > 1) |
a9e1cb6a WYG |
421 | priv->event_log.wraps_more_count++; |
422 | else | |
423 | priv->event_log.wraps_once_count++; | |
98d4bf0c | 424 | |
6c1011e1 | 425 | trace_iwlwifi_dev_ucode_wrap_event(trans(priv)->dev, |
a9e1cb6a WYG |
426 | num_wraps - priv->event_log.num_wraps, |
427 | next_entry, priv->event_log.next_entry); | |
98d4bf0c | 428 | |
a9e1cb6a | 429 | if (next_entry < priv->event_log.next_entry) { |
98d4bf0c JB |
430 | iwl_print_cont_event_trace( |
431 | priv, base, priv->event_log.next_entry, | |
432 | capacity - priv->event_log.next_entry, | |
433 | capacity, mode); | |
a9e1cb6a | 434 | |
98d4bf0c JB |
435 | iwl_print_cont_event_trace( |
436 | priv, base, 0, next_entry, capacity, mode); | |
a9e1cb6a | 437 | } else { |
98d4bf0c JB |
438 | iwl_print_cont_event_trace( |
439 | priv, base, next_entry, | |
440 | capacity - next_entry, | |
441 | capacity, mode); | |
a9e1cb6a | 442 | |
98d4bf0c JB |
443 | iwl_print_cont_event_trace( |
444 | priv, base, 0, next_entry, capacity, mode); | |
a9e1cb6a WYG |
445 | } |
446 | } | |
98d4bf0c | 447 | |
a9e1cb6a WYG |
448 | priv->event_log.num_wraps = num_wraps; |
449 | priv->event_log.next_entry = next_entry; | |
450 | } | |
451 | ||
452 | /** | |
453 | * iwl_bg_ucode_trace - Timer callback to log ucode event | |
454 | * | |
455 | * The timer is continually set to execute every | |
456 | * UCODE_TRACE_PERIOD milliseconds after the last timer expired | |
457 | * this function is to perform continuous uCode event logging operation | |
458 | * if enabled | |
459 | */ | |
460 | static void iwl_bg_ucode_trace(unsigned long data) | |
461 | { | |
462 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
463 | ||
83626404 | 464 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
a9e1cb6a WYG |
465 | return; |
466 | ||
467 | if (priv->event_log.ucode_trace) { | |
468 | iwl_continuous_event_trace(priv); | |
469 | /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ | |
470 | mod_timer(&priv->ucode_trace, | |
471 | jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); | |
472 | } | |
473 | } | |
474 | ||
65550636 WYG |
475 | static void iwl_bg_tx_flush(struct work_struct *work) |
476 | { | |
477 | struct iwl_priv *priv = | |
478 | container_of(work, struct iwl_priv, tx_flush); | |
479 | ||
83626404 | 480 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
65550636 WYG |
481 | return; |
482 | ||
483 | /* do nothing if rf-kill is on */ | |
83626404 | 484 | if (!iwl_is_ready_rf(priv)) |
65550636 WYG |
485 | return; |
486 | ||
c68744fb WYG |
487 | IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); |
488 | iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); | |
65550636 WYG |
489 | } |
490 | ||
9eae88fa JB |
491 | /* |
492 | * queue/FIFO/AC mapping definitions | |
493 | */ | |
494 | ||
495 | #define IWL_TX_FIFO_BK 0 /* shared */ | |
496 | #define IWL_TX_FIFO_BE 1 | |
497 | #define IWL_TX_FIFO_VI 2 /* shared */ | |
498 | #define IWL_TX_FIFO_VO 3 | |
499 | #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK | |
500 | #define IWL_TX_FIFO_BE_IPAN 4 | |
501 | #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI | |
502 | #define IWL_TX_FIFO_VO_IPAN 5 | |
503 | /* re-uses the VO FIFO, uCode will properly flush/schedule */ | |
504 | #define IWL_TX_FIFO_AUX 5 | |
505 | #define IWL_TX_FIFO_UNUSED -1 | |
506 | ||
507 | #define IWLAGN_CMD_FIFO_NUM 7 | |
508 | ||
509 | /* | |
510 | * This queue number is required for proper operation | |
511 | * because the ucode will stop/start the scheduler as | |
512 | * required. | |
513 | */ | |
514 | #define IWL_IPAN_MCAST_QUEUE 8 | |
515 | ||
516 | static const u8 iwlagn_default_queue_to_tx_fifo[] = { | |
517 | IWL_TX_FIFO_VO, | |
518 | IWL_TX_FIFO_VI, | |
519 | IWL_TX_FIFO_BE, | |
520 | IWL_TX_FIFO_BK, | |
521 | IWLAGN_CMD_FIFO_NUM, | |
522 | }; | |
523 | ||
524 | static const u8 iwlagn_ipan_queue_to_tx_fifo[] = { | |
525 | IWL_TX_FIFO_VO, | |
526 | IWL_TX_FIFO_VI, | |
527 | IWL_TX_FIFO_BE, | |
528 | IWL_TX_FIFO_BK, | |
529 | IWL_TX_FIFO_BK_IPAN, | |
530 | IWL_TX_FIFO_BE_IPAN, | |
531 | IWL_TX_FIFO_VI_IPAN, | |
532 | IWL_TX_FIFO_VO_IPAN, | |
533 | IWL_TX_FIFO_BE_IPAN, | |
534 | IWLAGN_CMD_FIFO_NUM, | |
535 | IWL_TX_FIFO_AUX, | |
536 | }; | |
537 | ||
538 | static const u8 iwlagn_bss_ac_to_fifo[] = { | |
539 | IWL_TX_FIFO_VO, | |
540 | IWL_TX_FIFO_VI, | |
541 | IWL_TX_FIFO_BE, | |
542 | IWL_TX_FIFO_BK, | |
543 | }; | |
544 | ||
545 | static const u8 iwlagn_bss_ac_to_queue[] = { | |
546 | 0, 1, 2, 3, | |
547 | }; | |
548 | ||
549 | static const u8 iwlagn_pan_ac_to_fifo[] = { | |
550 | IWL_TX_FIFO_VO_IPAN, | |
551 | IWL_TX_FIFO_VI_IPAN, | |
552 | IWL_TX_FIFO_BE_IPAN, | |
553 | IWL_TX_FIFO_BK_IPAN, | |
554 | }; | |
555 | ||
556 | static const u8 iwlagn_pan_ac_to_queue[] = { | |
557 | 7, 6, 5, 4, | |
558 | }; | |
559 | ||
560 | static const u8 iwlagn_bss_queue_to_ac[] = { | |
561 | IEEE80211_AC_VO, | |
562 | IEEE80211_AC_VI, | |
563 | IEEE80211_AC_BE, | |
564 | IEEE80211_AC_BK, | |
565 | }; | |
566 | ||
567 | static const u8 iwlagn_pan_queue_to_ac[] = { | |
568 | IEEE80211_AC_VO, | |
569 | IEEE80211_AC_VI, | |
570 | IEEE80211_AC_BE, | |
571 | IEEE80211_AC_BK, | |
572 | IEEE80211_AC_BK, | |
573 | IEEE80211_AC_BE, | |
574 | IEEE80211_AC_VI, | |
575 | IEEE80211_AC_VO, | |
576 | }; | |
577 | ||
e6dd5838 | 578 | static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) |
4d2a5d0e | 579 | { |
4d2a5d0e JB |
580 | int i; |
581 | ||
582 | /* | |
583 | * The default context is always valid, | |
584 | * the PAN context depends on uCode. | |
585 | */ | |
a18f61bc | 586 | priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); |
4d2a5d0e | 587 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) |
a18f61bc | 588 | priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN); |
4d2a5d0e JB |
589 | |
590 | for (i = 0; i < NUM_IWL_RXON_CTX; i++) | |
591 | priv->contexts[i].ctxid = i; | |
592 | ||
593 | priv->contexts[IWL_RXON_CTX_BSS].always_active = true; | |
594 | priv->contexts[IWL_RXON_CTX_BSS].is_active = true; | |
595 | priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; | |
596 | priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; | |
597 | priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; | |
598 | priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; | |
599 | priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; | |
600 | priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; | |
87272af7 | 601 | priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; |
4d2a5d0e JB |
602 | priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = |
603 | BIT(NL80211_IFTYPE_ADHOC); | |
604 | priv->contexts[IWL_RXON_CTX_BSS].interface_modes = | |
605 | BIT(NL80211_IFTYPE_STATION); | |
606 | priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; | |
607 | priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; | |
608 | priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; | |
609 | priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; | |
9eae88fa JB |
610 | memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue, |
611 | iwlagn_bss_ac_to_queue, sizeof(iwlagn_bss_ac_to_queue)); | |
612 | memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo, | |
613 | iwlagn_bss_ac_to_fifo, sizeof(iwlagn_bss_ac_to_fifo)); | |
4d2a5d0e JB |
614 | |
615 | priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; | |
616 | priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = | |
617 | REPLY_WIPAN_RXON_TIMING; | |
618 | priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = | |
619 | REPLY_WIPAN_RXON_ASSOC; | |
620 | priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; | |
621 | priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; | |
622 | priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; | |
623 | priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; | |
624 | priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; | |
4d2a5d0e JB |
625 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes = |
626 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); | |
c6baf7fb JB |
627 | |
628 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P) | |
629 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= | |
630 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
631 | BIT(NL80211_IFTYPE_P2P_GO); | |
632 | ||
4d2a5d0e JB |
633 | priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; |
634 | priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; | |
635 | priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; | |
9eae88fa JB |
636 | memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue, |
637 | iwlagn_pan_ac_to_queue, sizeof(iwlagn_pan_ac_to_queue)); | |
638 | memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo, | |
639 | iwlagn_pan_ac_to_fifo, sizeof(iwlagn_pan_ac_to_fifo)); | |
640 | priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE; | |
4d2a5d0e JB |
641 | |
642 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
643 | } | |
644 | ||
0975cc8f WYG |
645 | static void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
646 | { | |
647 | struct iwl_ct_kill_config cmd; | |
648 | struct iwl_ct_kill_throttling_config adv_cmd; | |
0975cc8f WYG |
649 | int ret = 0; |
650 | ||
1042db2a | 651 | iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR, |
0975cc8f | 652 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
08ae86ac | 653 | |
0975cc8f WYG |
654 | priv->thermal_throttle.ct_kill_toggle = false; |
655 | ||
38622419 | 656 | if (cfg(priv)->base_params->support_ct_kill_exit) { |
0975cc8f | 657 | adv_cmd.critical_temperature_enter = |
d6189124 | 658 | cpu_to_le32(hw_params(priv).ct_kill_threshold); |
0975cc8f | 659 | adv_cmd.critical_temperature_exit = |
d6189124 | 660 | cpu_to_le32(hw_params(priv).ct_kill_exit_threshold); |
0975cc8f | 661 | |
e10a0533 | 662 | ret = iwl_dvm_send_cmd_pdu(priv, |
e419d62d EG |
663 | REPLY_CT_KILL_CONFIG_CMD, |
664 | CMD_SYNC, sizeof(adv_cmd), &adv_cmd); | |
0975cc8f WYG |
665 | if (ret) |
666 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
667 | else | |
668 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
d6189124 EG |
669 | "succeeded, critical temperature enter is %d," |
670 | "exit is %d\n", | |
671 | hw_params(priv).ct_kill_threshold, | |
672 | hw_params(priv).ct_kill_exit_threshold); | |
0975cc8f WYG |
673 | } else { |
674 | cmd.critical_temperature_R = | |
d6189124 | 675 | cpu_to_le32(hw_params(priv).ct_kill_threshold); |
0975cc8f | 676 | |
e10a0533 | 677 | ret = iwl_dvm_send_cmd_pdu(priv, |
e419d62d EG |
678 | REPLY_CT_KILL_CONFIG_CMD, |
679 | CMD_SYNC, sizeof(cmd), &cmd); | |
0975cc8f WYG |
680 | if (ret) |
681 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
682 | else | |
683 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
d6189124 EG |
684 | "succeeded, " |
685 | "critical temperature is %d\n", | |
686 | hw_params(priv).ct_kill_threshold); | |
0975cc8f WYG |
687 | } |
688 | } | |
689 | ||
6d6a1afd SZ |
690 | static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) |
691 | { | |
692 | struct iwl_calib_cfg_cmd calib_cfg_cmd; | |
693 | struct iwl_host_cmd cmd = { | |
694 | .id = CALIBRATION_CFG_CMD, | |
3fa50738 JB |
695 | .len = { sizeof(struct iwl_calib_cfg_cmd), }, |
696 | .data = { &calib_cfg_cmd, }, | |
6d6a1afd SZ |
697 | }; |
698 | ||
699 | memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); | |
af4dc88c | 700 | calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL; |
7cb1b088 | 701 | calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); |
6d6a1afd | 702 | |
e10a0533 | 703 | return iwl_dvm_send_cmd(priv, &cmd); |
6d6a1afd SZ |
704 | } |
705 | ||
706 | ||
e505c433 WYG |
707 | static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) |
708 | { | |
709 | struct iwl_tx_ant_config_cmd tx_ant_cmd = { | |
710 | .valid = cpu_to_le32(valid_tx_ant), | |
711 | }; | |
712 | ||
0692fe41 | 713 | if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) { |
e505c433 | 714 | IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); |
e10a0533 | 715 | return iwl_dvm_send_cmd_pdu(priv, |
e505c433 WYG |
716 | TX_ANT_CONFIGURATION_CMD, |
717 | CMD_SYNC, | |
718 | sizeof(struct iwl_tx_ant_config_cmd), | |
719 | &tx_ant_cmd); | |
720 | } else { | |
721 | IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); | |
722 | return -EOPNOTSUPP; | |
723 | } | |
724 | } | |
725 | ||
b481de9c | 726 | /** |
4a4a9e81 | 727 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 728 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 729 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 730 | */ |
4613e72d | 731 | int iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 732 | { |
57aab75a | 733 | int ret = 0; |
246ed355 | 734 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
b481de9c | 735 | |
ca7966c8 | 736 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
6d6a1afd | 737 | |
5b9f8cd3 | 738 | /* After the ALIVE response, we can send host commands to the uCode */ |
83626404 | 739 | set_bit(STATUS_ALIVE, &priv->status); |
b481de9c | 740 | |
22de94de SG |
741 | /* Enable watchdog to monitor the driver tx queues */ |
742 | iwl_setup_watchdog(priv); | |
b74e31a9 | 743 | |
83626404 | 744 | if (iwl_is_rfkill(priv)) |
ca7966c8 | 745 | return -ERFKILL; |
b481de9c | 746 | |
98d4bf0c JB |
747 | if (priv->event_log.ucode_trace) { |
748 | /* start collecting data now */ | |
749 | mod_timer(&priv->ucode_trace, jiffies); | |
750 | } | |
751 | ||
bc795df1 | 752 | /* download priority table before any calibration request */ |
38622419 DF |
753 | if (cfg(priv)->bt_params && |
754 | cfg(priv)->bt_params->advanced_bt_coexist) { | |
f7322f8f | 755 | /* Configure Bluetooth device coexistence support */ |
38622419 | 756 | if (cfg(priv)->bt_params->bt_sco_disable) |
207ecc5e MV |
757 | priv->bt_enable_pspoll = false; |
758 | else | |
759 | priv->bt_enable_pspoll = true; | |
760 | ||
f7322f8f WYG |
761 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
762 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; | |
763 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
e55b517c | 764 | iwlagn_send_advance_bt_config(priv); |
f7322f8f | 765 | priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; |
207ecc5e MV |
766 | priv->cur_rssi_ctx = NULL; |
767 | ||
e1991885 | 768 | iwl_send_prio_tbl(priv); |
f7322f8f WYG |
769 | |
770 | /* FIXME: w/a to force change uCode BT state machine */ | |
e1991885 | 771 | ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, |
ca7966c8 JB |
772 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
773 | if (ret) | |
774 | return ret; | |
e1991885 | 775 | ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE, |
ca7966c8 JB |
776 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
777 | if (ret) | |
778 | return ret; | |
e55b517c WYG |
779 | } else { |
780 | /* | |
781 | * default is 2-wire BT coexexistence support | |
782 | */ | |
783 | iwl_send_bt_config(priv); | |
f7322f8f | 784 | } |
e55b517c | 785 | |
885765f1 VM |
786 | /* |
787 | * Perform runtime calibrations, including DC calibration. | |
788 | */ | |
789 | iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX); | |
bc795df1 | 790 | |
36d6825b | 791 | ieee80211_wake_queues(priv->hw); |
b481de9c | 792 | |
470ab2dd | 793 | priv->active_rate = IWL_RATES_MASK; |
b481de9c | 794 | |
2f748dec | 795 | /* Configure Tx antenna selection based on H/W config */ |
7e79a393 | 796 | iwlagn_send_tx_ant_config(priv, hw_params(priv).valid_tx_ant); |
2f748dec | 797 | |
15b86bff | 798 | if (iwl_is_associated_ctx(ctx) && !priv->wowlan) { |
c1adf9fb | 799 | struct iwl_rxon_cmd *active_rxon = |
246ed355 | 800 | (struct iwl_rxon_cmd *)&ctx->active; |
019fb97d | 801 | /* apply any changes in staging */ |
246ed355 | 802 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c ZY |
803 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
804 | } else { | |
d0fe478c | 805 | struct iwl_rxon_context *tmp; |
b481de9c | 806 | /* Initialize our rx_config data */ |
d0fe478c JB |
807 | for_each_context(priv, tmp) |
808 | iwl_connection_init_rx_config(priv, tmp); | |
45823531 | 809 | |
e3f10cea | 810 | iwlagn_set_rxon_chain(priv, ctx); |
b481de9c ZY |
811 | } |
812 | ||
15b86bff | 813 | if (!priv->wowlan) { |
c8ac61cf JB |
814 | /* WoWLAN ucode will not reply in the same way, skip it */ |
815 | iwl_reset_run_time_calib(priv); | |
816 | } | |
4a4a9e81 | 817 | |
83626404 | 818 | set_bit(STATUS_READY, &priv->status); |
9e2e7422 | 819 | |
b481de9c | 820 | /* Configure the adapter for unassociated operation */ |
805a3b81 | 821 | ret = iwlagn_commit_rxon(priv, ctx); |
ca7966c8 JB |
822 | if (ret) |
823 | return ret; | |
b481de9c ZY |
824 | |
825 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 826 | iwl_rf_kill_ct_config(priv); |
5a66926a | 827 | |
e1623446 | 828 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
c46fbefa | 829 | |
ca7966c8 | 830 | return iwl_power_update_mode(priv, true); |
b481de9c ZY |
831 | } |
832 | ||
d316383d JB |
833 | /** |
834 | * iwl_clear_driver_stations - clear knowledge of all stations from driver | |
835 | * @priv: iwl priv struct | |
836 | * | |
837 | * This is called during iwl_down() to make sure that in the case | |
838 | * we're coming there from a hardware restart mac80211 will be | |
839 | * able to reconfigure stations -- if we're getting there in the | |
840 | * normal down flow then the stations will already be cleared. | |
841 | */ | |
842 | static void iwl_clear_driver_stations(struct iwl_priv *priv) | |
843 | { | |
d316383d JB |
844 | struct iwl_rxon_context *ctx; |
845 | ||
fa23cb04 | 846 | spin_lock_bh(&priv->sta_lock); |
d316383d JB |
847 | memset(priv->stations, 0, sizeof(priv->stations)); |
848 | priv->num_stations = 0; | |
849 | ||
850 | priv->ucode_key_table = 0; | |
851 | ||
852 | for_each_context(priv, ctx) { | |
853 | /* | |
854 | * Remove all key information that is not stored as part | |
855 | * of station information since mac80211 may not have had | |
856 | * a chance to remove all the keys. When device is | |
857 | * reconfigured by mac80211 after an error all keys will | |
858 | * be reconfigured. | |
859 | */ | |
860 | memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); | |
861 | ctx->key_mapping_keys = 0; | |
862 | } | |
863 | ||
fa23cb04 | 864 | spin_unlock_bh(&priv->sta_lock); |
d316383d JB |
865 | } |
866 | ||
78e5a464 | 867 | void iwl_down(struct iwl_priv *priv) |
b481de9c | 868 | { |
22dd2fd2 | 869 | int exit_pending; |
b481de9c | 870 | |
e1623446 | 871 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c | 872 | |
b1eea297 | 873 | lockdep_assert_held(&priv->mutex); |
78e5a464 | 874 | |
d745d472 SG |
875 | iwl_scan_cancel_timeout(priv, 200); |
876 | ||
c6baf7fb JB |
877 | /* |
878 | * If active, scanning won't cancel it, so say it expired. | |
879 | * No race since we hold the mutex here and a new one | |
880 | * can't come in at this time. | |
881 | */ | |
882 | ieee80211_remain_on_channel_expired(priv->hw); | |
883 | ||
63013ae3 | 884 | exit_pending = |
83626404 | 885 | test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c | 886 | |
b62177a0 SG |
887 | /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set |
888 | * to prevent rearm timer */ | |
22de94de | 889 | del_timer_sync(&priv->watchdog); |
b62177a0 | 890 | |
dcef732c | 891 | iwl_clear_ucode_stations(priv, NULL); |
a194e324 | 892 | iwl_dealloc_bcast_stations(priv); |
db125c78 | 893 | iwl_clear_driver_stations(priv); |
b481de9c | 894 | |
a1174138 | 895 | /* reset BT coex data */ |
da5dbb97 | 896 | priv->bt_status = 0; |
207ecc5e MV |
897 | priv->cur_rssi_ctx = NULL; |
898 | priv->bt_is_sco = 0; | |
38622419 | 899 | if (cfg(priv)->bt_params) |
7cb1b088 | 900 | priv->bt_traffic_load = |
38622419 | 901 | cfg(priv)->bt_params->bt_init_traffic_load; |
7cb1b088 WYG |
902 | else |
903 | priv->bt_traffic_load = 0; | |
bee008b7 WYG |
904 | priv->bt_full_concurrent = false; |
905 | priv->bt_ci_compliance = 0; | |
a1174138 | 906 | |
b481de9c ZY |
907 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
908 | * exiting the module */ | |
909 | if (!exit_pending) | |
83626404 | 910 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c | 911 | |
859cfb0a | 912 | if (priv->mac80211_registered) |
b481de9c ZY |
913 | ieee80211_stop_queues(priv->hw); |
914 | ||
8f7ffbe2 | 915 | priv->ucode_loaded = false; |
909e9b23 EG |
916 | iwl_trans_stop_device(trans(priv)); |
917 | ||
1a10f433 | 918 | /* Clear out all status bits but a few that are stable across reset */ |
1353a7ba | 919 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
b481de9c | 920 | STATUS_RF_KILL_HW | |
83626404 | 921 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
9788864e | 922 | STATUS_GEO_CONFIGURED | |
83626404 | 923 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
052ec3f1 | 924 | STATUS_EXIT_PENDING; |
1353a7ba DF |
925 | priv->shrd->status &= |
926 | test_bit(STATUS_FW_ERROR, &priv->shrd->status) << | |
927 | STATUS_FW_ERROR; | |
b481de9c | 928 | |
77834543 | 929 | dev_kfree_skb(priv->beacon_skb); |
12e934dc | 930 | priv->beacon_skb = NULL; |
b481de9c ZY |
931 | } |
932 | ||
b481de9c ZY |
933 | /***************************************************************************** |
934 | * | |
935 | * Workqueue callbacks | |
936 | * | |
937 | *****************************************************************************/ | |
938 | ||
16e727e8 EG |
939 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
940 | { | |
941 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
942 | run_time_calib_work); | |
943 | ||
b1eea297 | 944 | mutex_lock(&priv->mutex); |
16e727e8 | 945 | |
83626404 DF |
946 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
947 | test_bit(STATUS_SCANNING, &priv->status)) { | |
b1eea297 | 948 | mutex_unlock(&priv->mutex); |
16e727e8 EG |
949 | return; |
950 | } | |
951 | ||
952 | if (priv->start_calib) { | |
0da0e5bf JB |
953 | iwl_chain_noise_calibration(priv); |
954 | iwl_sensitivity_calibration(priv); | |
16e727e8 EG |
955 | } |
956 | ||
b1eea297 | 957 | mutex_unlock(&priv->mutex); |
16e727e8 EG |
958 | } |
959 | ||
7335613a | 960 | void iwlagn_prepare_restart(struct iwl_priv *priv) |
e43e85c4 JB |
961 | { |
962 | struct iwl_rxon_context *ctx; | |
963 | bool bt_full_concurrent; | |
964 | u8 bt_ci_compliance; | |
965 | u8 bt_load; | |
966 | u8 bt_status; | |
207ecc5e | 967 | bool bt_is_sco; |
9eae88fa | 968 | int i; |
e43e85c4 | 969 | |
b1eea297 | 970 | lockdep_assert_held(&priv->mutex); |
e43e85c4 JB |
971 | |
972 | for_each_context(priv, ctx) | |
973 | ctx->vif = NULL; | |
974 | priv->is_open = 0; | |
975 | ||
976 | /* | |
977 | * __iwl_down() will clear the BT status variables, | |
978 | * which is correct, but when we restart we really | |
979 | * want to keep them so restore them afterwards. | |
980 | * | |
981 | * The restart process will later pick them up and | |
982 | * re-configure the hw when we reconfigure the BT | |
983 | * command. | |
984 | */ | |
985 | bt_full_concurrent = priv->bt_full_concurrent; | |
986 | bt_ci_compliance = priv->bt_ci_compliance; | |
987 | bt_load = priv->bt_traffic_load; | |
988 | bt_status = priv->bt_status; | |
207ecc5e | 989 | bt_is_sco = priv->bt_is_sco; |
e43e85c4 | 990 | |
78e5a464 | 991 | iwl_down(priv); |
e43e85c4 JB |
992 | |
993 | priv->bt_full_concurrent = bt_full_concurrent; | |
994 | priv->bt_ci_compliance = bt_ci_compliance; | |
995 | priv->bt_traffic_load = bt_load; | |
996 | priv->bt_status = bt_status; | |
207ecc5e | 997 | priv->bt_is_sco = bt_is_sco; |
9eae88fa JB |
998 | |
999 | /* reset all queues */ | |
1000 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
1001 | atomic_set(&priv->ac_stop_count[i], 0); | |
1002 | ||
1003 | for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++) | |
1004 | priv->queue_to_ac[i] = IWL_INVALID_AC; | |
1005 | ||
1006 | memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc)); | |
e43e85c4 JB |
1007 | } |
1008 | ||
5b9f8cd3 | 1009 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 1010 | { |
c79dd5b5 | 1011 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c | 1012 | |
83626404 | 1013 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
1014 | return; |
1015 | ||
63013ae3 | 1016 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) { |
b1eea297 | 1017 | mutex_lock(&priv->mutex); |
e43e85c4 | 1018 | iwlagn_prepare_restart(priv); |
b1eea297 | 1019 | mutex_unlock(&priv->mutex); |
a1174138 | 1020 | iwl_cancel_deferred_work(priv); |
19cc1087 JB |
1021 | ieee80211_restart_hw(priv->hw); |
1022 | } else { | |
ca7966c8 | 1023 | WARN_ON(1); |
19cc1087 | 1024 | } |
b481de9c ZY |
1025 | } |
1026 | ||
0fd09502 | 1027 | |
0fd09502 | 1028 | |
0fd09502 | 1029 | |
7335613a | 1030 | void iwlagn_disable_roc(struct iwl_priv *priv) |
f0b6e2e8 | 1031 | { |
7335613a | 1032 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
f0b6e2e8 | 1033 | |
b1eea297 | 1034 | lockdep_assert_held(&priv->mutex); |
f0b6e2e8 | 1035 | |
7335613a WYG |
1036 | if (!priv->hw_roc_setup) |
1037 | return; | |
f0b6e2e8 | 1038 | |
7335613a WYG |
1039 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
1040 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
f0b6e2e8 | 1041 | |
7335613a | 1042 | priv->hw_roc_channel = NULL; |
f0b6e2e8 | 1043 | |
7335613a | 1044 | memset(ctx->staging.node_addr, 0, ETH_ALEN); |
5ed540ae | 1045 | |
7335613a | 1046 | iwlagn_commit_rxon(priv, ctx); |
f0b6e2e8 | 1047 | |
7335613a WYG |
1048 | ctx->is_active = false; |
1049 | priv->hw_roc_setup = false; | |
f0b6e2e8 RC |
1050 | } |
1051 | ||
7335613a | 1052 | static void iwlagn_disable_roc_work(struct work_struct *work) |
b481de9c | 1053 | { |
7335613a WYG |
1054 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
1055 | hw_roc_disable_work.work); | |
b481de9c | 1056 | |
b1eea297 | 1057 | mutex_lock(&priv->mutex); |
7335613a | 1058 | iwlagn_disable_roc(priv); |
b1eea297 | 1059 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
1060 | } |
1061 | ||
7335613a WYG |
1062 | /***************************************************************************** |
1063 | * | |
1064 | * driver setup and teardown | |
1065 | * | |
1066 | *****************************************************************************/ | |
1067 | ||
1068 | static void iwl_setup_deferred_work(struct iwl_priv *priv) | |
b481de9c | 1069 | { |
1ee158d8 | 1070 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c | 1071 | |
7335613a WYG |
1072 | INIT_WORK(&priv->restart, iwl_bg_restart); |
1073 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); | |
1074 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); | |
1075 | INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); | |
1076 | INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); | |
1077 | INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); | |
1078 | INIT_DELAYED_WORK(&priv->hw_roc_disable_work, | |
1079 | iwlagn_disable_roc_work); | |
e655b9f0 | 1080 | |
7335613a | 1081 | iwl_setup_scan_deferred_work(priv); |
5a66926a | 1082 | |
562f08eb JB |
1083 | if (cfg(priv)->bt_params) |
1084 | iwlagn_bt_setup_deferred_work(priv); | |
5a66926a | 1085 | |
7335613a WYG |
1086 | init_timer(&priv->statistics_periodic); |
1087 | priv->statistics_periodic.data = (unsigned long)priv; | |
1088 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; | |
6cd0b1cb | 1089 | |
7335613a WYG |
1090 | init_timer(&priv->ucode_trace); |
1091 | priv->ucode_trace.data = (unsigned long)priv; | |
1092 | priv->ucode_trace.function = iwl_bg_ucode_trace; | |
948c171c | 1093 | |
7335613a WYG |
1094 | init_timer(&priv->watchdog); |
1095 | priv->watchdog.data = (unsigned long)priv; | |
1096 | priv->watchdog.function = iwl_bg_watchdog; | |
b481de9c ZY |
1097 | } |
1098 | ||
78e5a464 | 1099 | void iwl_cancel_deferred_work(struct iwl_priv *priv) |
c8ac61cf | 1100 | { |
562f08eb JB |
1101 | if (cfg(priv)->bt_params) |
1102 | iwlagn_bt_cancel_deferred_work(priv); | |
c8ac61cf | 1103 | |
7335613a WYG |
1104 | cancel_work_sync(&priv->run_time_calib_work); |
1105 | cancel_work_sync(&priv->beacon_update); | |
c8ac61cf | 1106 | |
7335613a | 1107 | iwl_cancel_scan_deferred_work(priv); |
c8ac61cf | 1108 | |
7335613a WYG |
1109 | cancel_work_sync(&priv->bt_full_concurrency); |
1110 | cancel_work_sync(&priv->bt_runtime_config); | |
1111 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
c8ac61cf | 1112 | |
7335613a WYG |
1113 | del_timer_sync(&priv->statistics_periodic); |
1114 | del_timer_sync(&priv->ucode_trace); | |
1115 | } | |
c8ac61cf | 1116 | |
03dadf96 | 1117 | static void iwl_init_hw_rates(struct ieee80211_rate *rates) |
7335613a WYG |
1118 | { |
1119 | int i; | |
c8ac61cf | 1120 | |
7335613a WYG |
1121 | for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { |
1122 | rates[i].bitrate = iwl_rates[i].ieee * 5; | |
1123 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
1124 | rates[i].hw_value_short = i; | |
1125 | rates[i].flags = 0; | |
1126 | if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { | |
1127 | /* | |
1128 | * If CCK != 1M then set short preamble rate flag. | |
1129 | */ | |
1130 | rates[i].flags |= | |
1131 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? | |
1132 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; | |
1133 | } | |
c8ac61cf | 1134 | } |
c8ac61cf JB |
1135 | } |
1136 | ||
533b4265 MV |
1137 | #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
1138 | #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ | |
1139 | static void iwl_init_ht_hw_capab(const struct iwl_priv *priv, | |
1140 | struct ieee80211_sta_ht_cap *ht_info, | |
1141 | enum ieee80211_band band) | |
1142 | { | |
1143 | u16 max_bit_rate = 0; | |
1144 | u8 rx_chains_num = hw_params(priv).rx_chains_num; | |
1145 | u8 tx_chains_num = hw_params(priv).tx_chains_num; | |
1146 | ||
1147 | ht_info->cap = 0; | |
1148 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | |
1149 | ||
1150 | ht_info->ht_supported = true; | |
1151 | ||
1152 | if (cfg(priv)->ht_params && | |
1153 | cfg(priv)->ht_params->ht_greenfield_support) | |
1154 | ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; | |
1155 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; | |
1156 | max_bit_rate = MAX_BIT_RATE_20_MHZ; | |
1157 | if (hw_params(priv).ht40_channel & BIT(band)) { | |
1158 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
1159 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; | |
1160 | ht_info->mcs.rx_mask[4] = 0x01; | |
1161 | max_bit_rate = MAX_BIT_RATE_40_MHZ; | |
1162 | } | |
1163 | ||
1164 | if (iwlagn_mod_params.amsdu_size_8K) | |
1165 | ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; | |
1166 | ||
1167 | ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; | |
1168 | ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; | |
1169 | ||
1170 | ht_info->mcs.rx_mask[0] = 0xFF; | |
1171 | if (rx_chains_num >= 2) | |
1172 | ht_info->mcs.rx_mask[1] = 0xFF; | |
1173 | if (rx_chains_num >= 3) | |
1174 | ht_info->mcs.rx_mask[2] = 0xFF; | |
1175 | ||
1176 | /* Highest supported Rx data rate */ | |
1177 | max_bit_rate *= rx_chains_num; | |
1178 | WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); | |
1179 | ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); | |
1180 | ||
1181 | /* Tx MCS capabilities */ | |
1182 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
1183 | if (tx_chains_num != rx_chains_num) { | |
1184 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; | |
1185 | ht_info->mcs.tx_params |= ((tx_chains_num - 1) << | |
1186 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); | |
1187 | } | |
1188 | } | |
1189 | ||
1190 | /** | |
1191 | * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom | |
1192 | */ | |
1193 | static int iwl_init_geos(struct iwl_priv *priv) | |
1194 | { | |
1195 | struct iwl_channel_info *ch; | |
1196 | struct ieee80211_supported_band *sband; | |
1197 | struct ieee80211_channel *channels; | |
1198 | struct ieee80211_channel *geo_ch; | |
1199 | struct ieee80211_rate *rates; | |
1200 | int i = 0; | |
1201 | s8 max_tx_power = IWLAGN_TX_POWER_TARGET_POWER_MIN; | |
1202 | ||
1203 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || | |
1204 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
1205 | IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n"); | |
1206 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | channels = kcalloc(priv->channel_count, | |
1211 | sizeof(struct ieee80211_channel), GFP_KERNEL); | |
1212 | if (!channels) | |
1213 | return -ENOMEM; | |
1214 | ||
1215 | rates = kcalloc(IWL_RATE_COUNT_LEGACY, sizeof(struct ieee80211_rate), | |
1216 | GFP_KERNEL); | |
1217 | if (!rates) { | |
1218 | kfree(channels); | |
1219 | return -ENOMEM; | |
1220 | } | |
1221 | ||
1222 | /* 5.2GHz channels start after the 2.4GHz channels */ | |
1223 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
1224 | sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; | |
1225 | /* just OFDM */ | |
1226 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
1227 | sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE; | |
1228 | ||
1229 | if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE) | |
1230 | iwl_init_ht_hw_capab(priv, &sband->ht_cap, | |
1231 | IEEE80211_BAND_5GHZ); | |
1232 | ||
1233 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
1234 | sband->channels = channels; | |
1235 | /* OFDM & CCK */ | |
1236 | sband->bitrates = rates; | |
1237 | sband->n_bitrates = IWL_RATE_COUNT_LEGACY; | |
1238 | ||
1239 | if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE) | |
1240 | iwl_init_ht_hw_capab(priv, &sband->ht_cap, | |
1241 | IEEE80211_BAND_2GHZ); | |
1242 | ||
1243 | priv->ieee_channels = channels; | |
1244 | priv->ieee_rates = rates; | |
1245 | ||
1246 | for (i = 0; i < priv->channel_count; i++) { | |
1247 | ch = &priv->channel_info[i]; | |
1248 | ||
1249 | /* FIXME: might be removed if scan is OK */ | |
1250 | if (!is_channel_valid(ch)) | |
1251 | continue; | |
1252 | ||
1253 | sband = &priv->bands[ch->band]; | |
1254 | ||
1255 | geo_ch = &sband->channels[sband->n_channels++]; | |
1256 | ||
1257 | geo_ch->center_freq = | |
1258 | ieee80211_channel_to_frequency(ch->channel, ch->band); | |
1259 | geo_ch->max_power = ch->max_power_avg; | |
1260 | geo_ch->max_antenna_gain = 0xff; | |
1261 | geo_ch->hw_value = ch->channel; | |
1262 | ||
1263 | if (is_channel_valid(ch)) { | |
1264 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) | |
1265 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
1266 | ||
1267 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) | |
1268 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
1269 | ||
1270 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
1271 | geo_ch->flags |= IEEE80211_CHAN_RADAR; | |
1272 | ||
1273 | geo_ch->flags |= ch->ht40_extension_channel; | |
1274 | ||
1275 | if (ch->max_power_avg > max_tx_power) | |
1276 | max_tx_power = ch->max_power_avg; | |
1277 | } else { | |
1278 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; | |
1279 | } | |
1280 | ||
1281 | IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", | |
1282 | ch->channel, geo_ch->center_freq, | |
1283 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
1284 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
1285 | "restricted" : "valid", | |
1286 | geo_ch->flags); | |
1287 | } | |
1288 | ||
1289 | priv->tx_power_device_lmt = max_tx_power; | |
1290 | priv->tx_power_user_lmt = max_tx_power; | |
1291 | priv->tx_power_next = max_tx_power; | |
1292 | ||
1293 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && | |
1294 | hw_params(priv).sku & EEPROM_SKU_CAP_BAND_52GHZ) { | |
1295 | IWL_INFO(priv, "Incorrectly detected BG card as ABG. " | |
1296 | "Please send your %s to maintainer.\n", | |
1297 | trans(priv)->hw_id_str); | |
1298 | hw_params(priv).sku &= ~EEPROM_SKU_CAP_BAND_52GHZ; | |
1299 | } | |
1300 | ||
1301 | IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
1302 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, | |
1303 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
1304 | ||
1305 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
1306 | ||
1307 | return 0; | |
1308 | } | |
1309 | ||
1310 | /* | |
1311 | * iwl_free_geos - undo allocations in iwl_init_geos | |
1312 | */ | |
1313 | static void iwl_free_geos(struct iwl_priv *priv) | |
1314 | { | |
1315 | kfree(priv->ieee_channels); | |
1316 | kfree(priv->ieee_rates); | |
1317 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
1318 | } | |
1319 | ||
7335613a | 1320 | static int iwl_init_drv(struct iwl_priv *priv) |
c8ac61cf | 1321 | { |
7335613a | 1322 | int ret; |
c8ac61cf | 1323 | |
fa23cb04 | 1324 | spin_lock_init(&priv->sta_lock); |
c8ac61cf | 1325 | |
b1eea297 | 1326 | mutex_init(&priv->mutex); |
c8ac61cf | 1327 | |
e1991885 | 1328 | INIT_LIST_HEAD(&priv->calib_results); |
80e83da7 | 1329 | |
7335613a WYG |
1330 | priv->ieee_channels = NULL; |
1331 | priv->ieee_rates = NULL; | |
1332 | priv->band = IEEE80211_BAND_2GHZ; | |
c8ac61cf | 1333 | |
ab5c0f1f JB |
1334 | priv->plcp_delta_threshold = |
1335 | cfg(priv)->base_params->plcp_delta_threshold; | |
1336 | ||
7335613a WYG |
1337 | priv->iw_mode = NL80211_IFTYPE_STATION; |
1338 | priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; | |
1339 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; | |
1340 | priv->agg_tids_count = 0; | |
c8ac61cf | 1341 | |
947a9407 JB |
1342 | priv->ucode_owner = IWL_OWNERSHIP_DRIVER; |
1343 | ||
7335613a WYG |
1344 | /* initialize force reset */ |
1345 | priv->force_reset[IWL_RF_RESET].reset_duration = | |
1346 | IWL_DELAY_NEXT_FORCE_RF_RESET; | |
1347 | priv->force_reset[IWL_FW_RESET].reset_duration = | |
1348 | IWL_DELAY_NEXT_FORCE_FW_RELOAD; | |
c8ac61cf | 1349 | |
7335613a | 1350 | priv->rx_statistics_jiffies = jiffies; |
c8ac61cf | 1351 | |
7335613a WYG |
1352 | /* Choose which receivers/antennas to use */ |
1353 | iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); | |
c8ac61cf | 1354 | |
7335613a | 1355 | iwl_init_scan_params(priv); |
c8ac61cf | 1356 | |
7335613a | 1357 | /* init bt coex */ |
38622419 DF |
1358 | if (cfg(priv)->bt_params && |
1359 | cfg(priv)->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1360 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
1361 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
1362 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; | |
1363 | priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; | |
1364 | priv->bt_duration = BT_DURATION_LIMIT_DEF; | |
1365 | priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; | |
1366 | } | |
c8ac61cf | 1367 | |
7335613a | 1368 | ret = iwl_init_channel_map(priv); |
c8ac61cf | 1369 | if (ret) { |
7335613a WYG |
1370 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
1371 | goto err; | |
c8ac61cf JB |
1372 | } |
1373 | ||
7335613a WYG |
1374 | ret = iwl_init_geos(priv); |
1375 | if (ret) { | |
1376 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
1377 | goto err_free_channel_map; | |
1378 | } | |
03dadf96 | 1379 | iwl_init_hw_rates(priv->ieee_rates); |
c8ac61cf | 1380 | |
7335613a | 1381 | return 0; |
c8ac61cf | 1382 | |
7335613a WYG |
1383 | err_free_channel_map: |
1384 | iwl_free_channel_map(priv); | |
1385 | err: | |
1386 | return ret; | |
1387 | } | |
c8ac61cf | 1388 | |
7335613a WYG |
1389 | static void iwl_uninit_drv(struct iwl_priv *priv) |
1390 | { | |
7335613a WYG |
1391 | iwl_free_geos(priv); |
1392 | iwl_free_channel_map(priv); | |
7335613a WYG |
1393 | kfree(priv->scan_cmd); |
1394 | kfree(priv->beacon_cmd); | |
1395 | kfree(rcu_dereference_raw(priv->noa_data)); | |
e1991885 | 1396 | iwl_calib_free_results(priv); |
7335613a WYG |
1397 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1398 | kfree(priv->wowlan_sram); | |
1399 | #endif | |
1400 | } | |
c8ac61cf | 1401 | |
7335613a WYG |
1402 | /* Size of one Rx buffer in host DRAM */ |
1403 | #define IWL_RX_BUF_SIZE_4K (4 * 1024) | |
1404 | #define IWL_RX_BUF_SIZE_8K (8 * 1024) | |
dda61a44 | 1405 | |
6d4dec7b | 1406 | static void iwl_set_hw_params(struct iwl_priv *priv) |
07d4f1ad | 1407 | { |
b9ad70da JB |
1408 | if (cfg(priv)->ht_params) |
1409 | hw_params(priv).use_rts_for_aggregation = | |
1410 | cfg(priv)->ht_params->use_rts_for_aggregation; | |
1411 | ||
9d143e9a | 1412 | if (iwlagn_mod_params.amsdu_size_8K) |
d6189124 EG |
1413 | hw_params(priv).rx_page_order = |
1414 | get_order(IWL_RX_BUF_SIZE_8K); | |
07d4f1ad | 1415 | else |
d6189124 EG |
1416 | hw_params(priv).rx_page_order = |
1417 | get_order(IWL_RX_BUF_SIZE_4K); | |
07d4f1ad | 1418 | |
7428994d | 1419 | if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL) |
54708d8d | 1420 | hw_params(priv).sku &= ~EEPROM_SKU_CAP_11N_ENABLE; |
07d4f1ad | 1421 | |
38622419 | 1422 | hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout; |
fd656935 | 1423 | |
07d4f1ad | 1424 | /* Device-specific setup */ |
6d4dec7b | 1425 | cfg(priv)->lib->set_hw_params(priv); |
07d4f1ad WYG |
1426 | } |
1427 | ||
119ea186 | 1428 | |
119ea186 | 1429 | |
ebfa867d WYG |
1430 | static void iwl_debug_config(struct iwl_priv *priv) |
1431 | { | |
1042db2a | 1432 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG " |
ebfa867d WYG |
1433 | #ifdef CONFIG_IWLWIFI_DEBUG |
1434 | "enabled\n"); | |
1435 | #else | |
1436 | "disabled\n"); | |
1437 | #endif | |
1042db2a | 1438 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS " |
ebfa867d WYG |
1439 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1440 | "enabled\n"); | |
1441 | #else | |
1442 | "disabled\n"); | |
1443 | #endif | |
1042db2a | 1444 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING " |
ebfa867d WYG |
1445 | #ifdef CONFIG_IWLWIFI_DEVICE_TRACING |
1446 | "enabled\n"); | |
1447 | #else | |
1448 | "disabled\n"); | |
1449 | #endif | |
1450 | ||
1042db2a | 1451 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE " |
5ef15ccc | 1452 | #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE |
ebfa867d WYG |
1453 | "enabled\n"); |
1454 | #else | |
1455 | "disabled\n"); | |
0cb38d65 | 1456 | #endif |
1042db2a | 1457 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P " |
0cb38d65 WYG |
1458 | #ifdef CONFIG_IWLWIFI_P2P |
1459 | "enabled\n"); | |
1460 | #else | |
1461 | "disabled\n"); | |
ebfa867d WYG |
1462 | #endif |
1463 | } | |
1464 | ||
0692fe41 JB |
1465 | static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, |
1466 | const struct iwl_fw *fw) | |
b2ea345e | 1467 | { |
b2ea345e WYG |
1468 | struct iwl_priv *priv; |
1469 | struct ieee80211_hw *hw; | |
d0f76d68 | 1470 | struct iwl_op_mode *op_mode; |
084dd791 | 1471 | u16 num_mac; |
a78be210 | 1472 | u32 ucode_flags; |
92d743ae | 1473 | struct iwl_trans_config trans_cfg; |
d663ee73 JB |
1474 | static const u8 no_reclaim_cmds[] = { |
1475 | REPLY_RX_PHY_CMD, | |
1476 | REPLY_RX, | |
1477 | REPLY_RX_MPDU_CMD, | |
1478 | REPLY_COMPRESSED_BA, | |
1479 | STATISTICS_NOTIFICATION, | |
1480 | REPLY_TX, | |
1481 | }; | |
9eae88fa JB |
1482 | const u8 *q_to_ac; |
1483 | int n_q_to_ac; | |
1484 | int i; | |
b2ea345e WYG |
1485 | |
1486 | /************************ | |
1487 | * 1. Allocating HW data | |
1488 | ************************/ | |
fa06ec79 | 1489 | hw = iwl_alloc_all(); |
b2ea345e | 1490 | if (!hw) { |
d0f76d68 EG |
1491 | pr_err("%s: Cannot allocate network device\n", |
1492 | cfg(trans)->name); | |
807caf26 EG |
1493 | goto out; |
1494 | } | |
1495 | ||
d0f76d68 EG |
1496 | op_mode = hw->priv; |
1497 | op_mode->ops = &iwl_dvm_ops; | |
1498 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
1499 | priv->shrd = trans->shrd; | |
0692fe41 JB |
1500 | priv->fw = fw; |
1501 | /* TODO: remove fw from shared data later */ | |
1502 | priv->shrd->fw = fw; | |
a48709c5 | 1503 | |
3dc420be EG |
1504 | /* |
1505 | * Populate the state variables that the transport layer needs | |
1506 | * to know about. | |
1507 | */ | |
1508 | trans_cfg.op_mode = op_mode; | |
d663ee73 JB |
1509 | trans_cfg.no_reclaim_cmds = no_reclaim_cmds; |
1510 | trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); | |
9bdfbfad MV |
1511 | |
1512 | ucode_flags = fw->ucode_capa.flags; | |
1513 | ||
1514 | #ifndef CONFIG_IWLWIFI_P2P | |
1515 | ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN; | |
1516 | #endif | |
92d743ae | 1517 | |
c6f600fc MV |
1518 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) { |
1519 | priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; | |
1520 | trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; | |
9eae88fa JB |
1521 | trans_cfg.queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo; |
1522 | trans_cfg.n_queue_to_fifo = | |
1523 | ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo); | |
1524 | q_to_ac = iwlagn_pan_queue_to_ac; | |
1525 | n_q_to_ac = ARRAY_SIZE(iwlagn_pan_queue_to_ac); | |
c6f600fc MV |
1526 | } else { |
1527 | priv->sta_key_max_num = STA_KEY_MAX_NUM; | |
1528 | trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; | |
9eae88fa JB |
1529 | trans_cfg.queue_to_fifo = iwlagn_default_queue_to_tx_fifo; |
1530 | trans_cfg.n_queue_to_fifo = | |
1531 | ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo); | |
1532 | q_to_ac = iwlagn_bss_queue_to_ac; | |
1533 | n_q_to_ac = ARRAY_SIZE(iwlagn_bss_queue_to_ac); | |
c6f600fc MV |
1534 | } |
1535 | ||
92d743ae MV |
1536 | /* Configure transport layer */ |
1537 | iwl_trans_configure(trans(priv), &trans_cfg); | |
ed277c93 | 1538 | |
b2ea345e | 1539 | /* At this point both hw and priv are allocated. */ |
8f2d3d2a | 1540 | |
d0f76d68 | 1541 | SET_IEEE80211_DEV(priv->hw, trans(priv)->dev); |
b481de9c | 1542 | |
1589c562 | 1543 | /* show what debugging capabilities we have */ |
ebfa867d WYG |
1544 | iwl_debug_config(priv); |
1545 | ||
e1623446 | 1546 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
316c30d9 | 1547 | |
bee008b7 WYG |
1548 | /* is antenna coupling more than 35dB ? */ |
1549 | priv->bt_ant_couple_ok = | |
48f20d35 EG |
1550 | (iwlagn_mod_params.ant_coupling > |
1551 | IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? | |
1552 | true : false; | |
bee008b7 | 1553 | |
9f28ebc3 | 1554 | /* enable/disable bt channel inhibition */ |
48f20d35 | 1555 | priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce; |
9f28ebc3 WYG |
1556 | IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", |
1557 | (priv->bt_ch_announce) ? "On" : "Off"); | |
f37837c9 | 1558 | |
20594eb0 WYG |
1559 | if (iwl_alloc_traffic_mem(priv)) |
1560 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 1561 | |
731a29b7 | 1562 | /* these spin locks will be used in apm_ops.init and EEPROM access |
a8b50a0a MA |
1563 | * we should init now |
1564 | */ | |
1042db2a | 1565 | spin_lock_init(&trans(priv)->reg_lock); |
4ff70fcd | 1566 | spin_lock_init(&priv->statistics.lock); |
4843b5a7 | 1567 | |
084dd791 | 1568 | /*********************** |
3dc420be | 1569 | * 2. Read REV register |
084dd791 | 1570 | ***********************/ |
c11362c0 | 1571 | IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
08079a49 | 1572 | cfg(priv)->name, trans(priv)->hw_rev); |
316c30d9 | 1573 | |
88f10a17 | 1574 | if (iwl_trans_start_hw(trans(priv))) |
b52e7ea1 | 1575 | goto out_free_traffic_mem; |
1e89cbac | 1576 | |
91238714 | 1577 | /***************** |
3dc420be | 1578 | * 3. Read EEPROM |
91238714 | 1579 | *****************/ |
88f10a17 WYG |
1580 | /* Read the EEPROM */ |
1581 | if (iwl_eeprom_init(trans(priv), trans(priv)->hw_rev)) { | |
15b1687c | 1582 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
b52e7ea1 | 1583 | goto out_free_traffic_mem; |
316c30d9 | 1584 | } |
88f10a17 WYG |
1585 | /* Reset chip to save power until we load uCode during "up". */ |
1586 | iwl_trans_stop_hw(trans(priv)); | |
1587 | ||
1588 | if (iwl_eeprom_check_version(priv)) | |
c8f16138 | 1589 | goto out_free_eeprom; |
8614f360 | 1590 | |
88f10a17 | 1591 | if (iwl_eeprom_init_hw_params(priv)) |
21a5b3c6 WYG |
1592 | goto out_free_eeprom; |
1593 | ||
02883017 | 1594 | /* extract MAC Address */ |
ab36eab2 | 1595 | iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr); |
c6fa17ed WYG |
1596 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); |
1597 | priv->hw->wiphy->addresses = priv->addresses; | |
1598 | priv->hw->wiphy->n_addresses = 1; | |
ab36eab2 | 1599 | num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS); |
c6fa17ed WYG |
1600 | if (num_mac > 1) { |
1601 | memcpy(priv->addresses[1].addr, priv->addresses[0].addr, | |
1602 | ETH_ALEN); | |
1603 | priv->addresses[1].addr[5]++; | |
1604 | priv->hw->wiphy->n_addresses++; | |
1605 | } | |
316c30d9 | 1606 | |
3dc420be EG |
1607 | /************************ |
1608 | * 4. Setup HW constants | |
1609 | ************************/ | |
1610 | iwl_set_hw_params(priv); | |
1611 | ||
1612 | if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE)) { | |
1613 | IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN"); | |
1614 | ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN; | |
1615 | /* | |
1616 | * if not PAN, then don't support P2P -- might be a uCode | |
1617 | * packaging bug or due to the eeprom check above | |
1618 | */ | |
1619 | ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P; | |
1620 | priv->sta_key_max_num = STA_KEY_MAX_NUM; | |
1621 | trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; | |
9eae88fa JB |
1622 | trans_cfg.queue_to_fifo = iwlagn_default_queue_to_tx_fifo; |
1623 | trans_cfg.n_queue_to_fifo = | |
1624 | ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo); | |
1625 | q_to_ac = iwlagn_bss_queue_to_ac; | |
1626 | n_q_to_ac = ARRAY_SIZE(iwlagn_bss_queue_to_ac); | |
3dc420be EG |
1627 | |
1628 | /* Configure transport layer again*/ | |
1629 | iwl_trans_configure(trans(priv), &trans_cfg); | |
1630 | } | |
1631 | ||
316c30d9 | 1632 | /******************* |
3dc420be | 1633 | * 5. Setup priv |
316c30d9 | 1634 | *******************/ |
9eae88fa JB |
1635 | for (i = 0; i < IEEE80211_NUM_ACS; i++) |
1636 | atomic_set(&priv->ac_stop_count[i], 0); | |
1637 | ||
1638 | for (i = 0; i < IWL_MAX_HW_QUEUES; i++) { | |
1639 | if (i < n_q_to_ac) | |
1640 | priv->queue_to_ac[i] = q_to_ac[i]; | |
1641 | else | |
1642 | priv->queue_to_ac[i] = IWL_INVALID_AC; | |
1643 | } | |
1644 | ||
1645 | WARN_ON(trans_cfg.queue_to_fifo[trans_cfg.cmd_queue] != | |
1646 | IWLAGN_CMD_FIFO_NUM); | |
b481de9c | 1647 | |
88f10a17 | 1648 | if (iwl_init_drv(priv)) |
399f4900 | 1649 | goto out_free_eeprom; |
88f10a17 | 1650 | |
bf85ea4f | 1651 | /* At this point both hw and priv are initialized. */ |
316c30d9 | 1652 | |
316c30d9 | 1653 | /******************** |
3dc420be | 1654 | * 6. Setup services |
316c30d9 | 1655 | ********************/ |
4e39317d | 1656 | iwl_setup_deferred_work(priv); |
653fa4a0 | 1657 | iwl_setup_rx_handlers(priv); |
4613e72d | 1658 | iwl_testmode_init(priv); |
316c30d9 | 1659 | |
58d0f361 | 1660 | iwl_power_initialize(priv); |
39b73fb1 | 1661 | iwl_tt_initialize(priv); |
158bea07 | 1662 | |
e211b242 EG |
1663 | snprintf(priv->hw->wiphy->fw_version, |
1664 | sizeof(priv->hw->wiphy->fw_version), | |
1665 | "%s", fw->fw_version); | |
1666 | ||
1667 | priv->new_scan_threshold_behaviour = | |
a78be210 | 1668 | !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); |
562db532 | 1669 | |
e211b242 EG |
1670 | priv->phy_calib_chain_noise_reset_cmd = |
1671 | fw->ucode_capa.standard_phy_calibration_size; | |
1672 | priv->phy_calib_chain_noise_gain_cmd = | |
1673 | fw->ucode_capa.standard_phy_calibration_size + 1; | |
1674 | ||
1675 | /* initialize all valid contexts */ | |
a78be210 | 1676 | iwl_init_context(priv, ucode_flags); |
e211b242 EG |
1677 | |
1678 | /************************************************** | |
1679 | * This is still part of probe() in a sense... | |
1680 | * | |
3dc420be | 1681 | * 7. Setup and register with mac80211 and debugfs |
e211b242 | 1682 | **************************************************/ |
88f10a17 | 1683 | if (iwlagn_mac_setup_register(priv, &fw->ucode_capa)) |
7d47618a | 1684 | goto out_destroy_workqueue; |
158bea07 | 1685 | |
88f10a17 | 1686 | if (iwl_dbgfs_register(priv, DRV_NAME)) |
e211b242 | 1687 | IWL_ERR(priv, |
88f10a17 | 1688 | "failed to create debugfs files. Ignoring error\n"); |
e211b242 | 1689 | |
d0f76d68 | 1690 | return op_mode; |
b481de9c | 1691 | |
34c1b7ba | 1692 | out_destroy_workqueue: |
1ee158d8 JB |
1693 | destroy_workqueue(priv->workqueue); |
1694 | priv->workqueue = NULL; | |
6ba87956 | 1695 | iwl_uninit_drv(priv); |
34c1b7ba | 1696 | out_free_eeprom: |
ab36eab2 | 1697 | iwl_eeprom_free(priv->shrd); |
34c1b7ba | 1698 | out_free_traffic_mem: |
20594eb0 | 1699 | iwl_free_traffic_mem(priv); |
d7c76f4c | 1700 | ieee80211_free_hw(priv->hw); |
34c1b7ba | 1701 | out: |
d0f76d68 EG |
1702 | op_mode = NULL; |
1703 | return op_mode; | |
b481de9c ZY |
1704 | } |
1705 | ||
d0f76d68 | 1706 | static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode) |
b481de9c | 1707 | { |
d0f76d68 EG |
1708 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); |
1709 | ||
e1623446 | 1710 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 1711 | |
67249625 | 1712 | iwl_dbgfs_unregister(priv); |
67249625 | 1713 | |
7a4e5281 | 1714 | iwl_testmode_cleanup(priv); |
09af1403 | 1715 | iwlagn_mac_unregister(priv); |
c4f55232 | 1716 | |
39b73fb1 WYG |
1717 | iwl_tt_exit(priv); |
1718 | ||
ae2c30bf | 1719 | /*This will stop the queues, move the device to low power state */ |
8f7ffbe2 | 1720 | priv->ucode_loaded = false; |
ae2c30bf | 1721 | iwl_trans_stop_device(trans(priv)); |
0359facc | 1722 | |
ab36eab2 | 1723 | iwl_eeprom_free(priv->shrd); |
b481de9c | 1724 | |
948c171c | 1725 | /*netif_stop_queue(dev); */ |
1ee158d8 | 1726 | flush_workqueue(priv->workqueue); |
948c171c | 1727 | |
ade4c649 | 1728 | /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes |
1ee158d8 | 1729 | * priv->workqueue... so we can't take down the workqueue |
b481de9c | 1730 | * until now... */ |
1ee158d8 JB |
1731 | destroy_workqueue(priv->workqueue); |
1732 | priv->workqueue = NULL; | |
20594eb0 | 1733 | iwl_free_traffic_mem(priv); |
b481de9c | 1734 | |
6ba87956 | 1735 | iwl_uninit_drv(priv); |
b481de9c | 1736 | |
77834543 | 1737 | dev_kfree_skb(priv->beacon_skb); |
b481de9c ZY |
1738 | |
1739 | ieee80211_free_hw(priv->hw); | |
1740 | } | |
1741 | ||
2fdfc476 MV |
1742 | static const char * const desc_lookup_text[] = { |
1743 | "OK", | |
1744 | "FAIL", | |
1745 | "BAD_PARAM", | |
1746 | "BAD_CHECKSUM", | |
1747 | "NMI_INTERRUPT_WDG", | |
1748 | "SYSASSERT", | |
1749 | "FATAL_ERROR", | |
1750 | "BAD_COMMAND", | |
1751 | "HW_ERROR_TUNE_LOCK", | |
1752 | "HW_ERROR_TEMPERATURE", | |
1753 | "ILLEGAL_CHAN_FREQ", | |
1754 | "VCC_NOT_STABLE", | |
1755 | "FH_ERROR", | |
1756 | "NMI_INTERRUPT_HOST", | |
1757 | "NMI_INTERRUPT_ACTION_PT", | |
1758 | "NMI_INTERRUPT_UNKNOWN", | |
1759 | "UCODE_VERSION_MISMATCH", | |
1760 | "HW_ERROR_ABS_LOCK", | |
1761 | "HW_ERROR_CAL_LOCK_FAIL", | |
1762 | "NMI_INTERRUPT_INST_ACTION_PT", | |
1763 | "NMI_INTERRUPT_DATA_ACTION_PT", | |
1764 | "NMI_TRM_HW_ER", | |
1765 | "NMI_INTERRUPT_TRM", | |
1766 | "NMI_INTERRUPT_BREAK_POINT", | |
1767 | "DEBUG_0", | |
1768 | "DEBUG_1", | |
1769 | "DEBUG_2", | |
1770 | "DEBUG_3", | |
1771 | }; | |
1772 | ||
1773 | static struct { char *name; u8 num; } advanced_lookup[] = { | |
1774 | { "NMI_INTERRUPT_WDG", 0x34 }, | |
1775 | { "SYSASSERT", 0x35 }, | |
1776 | { "UCODE_VERSION_MISMATCH", 0x37 }, | |
1777 | { "BAD_COMMAND", 0x38 }, | |
1778 | { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, | |
1779 | { "FATAL_ERROR", 0x3D }, | |
1780 | { "NMI_TRM_HW_ERR", 0x46 }, | |
1781 | { "NMI_INTERRUPT_TRM", 0x4C }, | |
1782 | { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, | |
1783 | { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, | |
1784 | { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, | |
1785 | { "NMI_INTERRUPT_HOST", 0x66 }, | |
1786 | { "NMI_INTERRUPT_ACTION_PT", 0x7C }, | |
1787 | { "NMI_INTERRUPT_UNKNOWN", 0x84 }, | |
1788 | { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, | |
1789 | { "ADVANCED_SYSASSERT", 0 }, | |
1790 | }; | |
1791 | ||
1792 | static const char *desc_lookup(u32 num) | |
1793 | { | |
1794 | int i; | |
1795 | int max = ARRAY_SIZE(desc_lookup_text); | |
1796 | ||
1797 | if (num < max) | |
1798 | return desc_lookup_text[num]; | |
1799 | ||
1800 | max = ARRAY_SIZE(advanced_lookup) - 1; | |
1801 | for (i = 0; i < max; i++) { | |
1802 | if (advanced_lookup[i].num == num) | |
1803 | break; | |
1804 | } | |
1805 | return advanced_lookup[i].name; | |
1806 | } | |
1807 | ||
1808 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1809 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1810 | ||
1811 | static void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1812 | { | |
1813 | struct iwl_trans *trans = trans(priv); | |
1814 | u32 base; | |
1815 | struct iwl_error_event_table table; | |
1816 | ||
1817 | base = priv->device_pointers.error_event_table; | |
a42506eb | 1818 | if (priv->cur_ucode == IWL_UCODE_INIT) { |
2fdfc476 MV |
1819 | if (!base) |
1820 | base = priv->shrd->fw->init_errlog_ptr; | |
1821 | } else { | |
1822 | if (!base) | |
1823 | base = priv->shrd->fw->inst_errlog_ptr; | |
1824 | } | |
1825 | ||
1826 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { | |
1827 | IWL_ERR(priv, | |
1828 | "Not valid error log pointer 0x%08X for %s uCode\n", | |
1829 | base, | |
a42506eb | 1830 | (priv->cur_ucode == IWL_UCODE_INIT) |
2fdfc476 MV |
1831 | ? "Init" : "RT"); |
1832 | return; | |
1833 | } | |
1834 | ||
1835 | /*TODO: Update dbgfs with ISR error stats obtained below */ | |
1836 | iwl_read_targ_mem_words(trans, base, &table, sizeof(table)); | |
1837 | ||
1838 | if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { | |
1839 | IWL_ERR(trans, "Start IWL Error Log Dump:\n"); | |
1840 | IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", | |
1841 | priv->shrd->status, table.valid); | |
1842 | } | |
1843 | ||
1844 | trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, | |
1845 | table.data1, table.data2, table.line, | |
1846 | table.blink1, table.blink2, table.ilink1, | |
1847 | table.ilink2, table.bcon_time, table.gp1, | |
1848 | table.gp2, table.gp3, table.ucode_ver, | |
1849 | table.hw_ver, table.brd_ver); | |
1850 | IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id, | |
1851 | desc_lookup(table.error_id)); | |
1852 | IWL_ERR(priv, "0x%08X | uPc\n", table.pc); | |
1853 | IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1); | |
1854 | IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2); | |
1855 | IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1); | |
1856 | IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2); | |
1857 | IWL_ERR(priv, "0x%08X | data1\n", table.data1); | |
1858 | IWL_ERR(priv, "0x%08X | data2\n", table.data2); | |
1859 | IWL_ERR(priv, "0x%08X | line\n", table.line); | |
1860 | IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time); | |
1861 | IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low); | |
1862 | IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi); | |
1863 | IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1); | |
1864 | IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2); | |
1865 | IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3); | |
1866 | IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver); | |
1867 | IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver); | |
1868 | IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver); | |
1869 | IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd); | |
1870 | IWL_ERR(priv, "0x%08X | isr0\n", table.isr0); | |
1871 | IWL_ERR(priv, "0x%08X | isr1\n", table.isr1); | |
1872 | IWL_ERR(priv, "0x%08X | isr2\n", table.isr2); | |
1873 | IWL_ERR(priv, "0x%08X | isr3\n", table.isr3); | |
1874 | IWL_ERR(priv, "0x%08X | isr4\n", table.isr4); | |
1875 | IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref); | |
1876 | IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event); | |
1877 | IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control); | |
1878 | IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration); | |
1879 | IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); | |
1880 | IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); | |
1881 | IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); | |
1882 | IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp); | |
1883 | IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler); | |
1884 | } | |
1885 | ||
1886 | #define EVENT_START_OFFSET (4 * sizeof(u32)) | |
1887 | ||
1888 | /** | |
1889 | * iwl_print_event_log - Dump error event log to syslog | |
1890 | * | |
1891 | */ | |
1892 | static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, | |
1893 | u32 num_events, u32 mode, | |
1894 | int pos, char **buf, size_t bufsz) | |
1895 | { | |
1896 | u32 i; | |
1897 | u32 base; /* SRAM byte address of event log header */ | |
1898 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1899 | u32 ptr; /* SRAM byte address of log data */ | |
1900 | u32 ev, time, data; /* event log data */ | |
1901 | unsigned long reg_flags; | |
1902 | ||
1903 | struct iwl_trans *trans = trans(priv); | |
1904 | ||
1905 | if (num_events == 0) | |
1906 | return pos; | |
1907 | ||
1908 | base = priv->device_pointers.log_event_table; | |
a42506eb | 1909 | if (priv->cur_ucode == IWL_UCODE_INIT) { |
2fdfc476 MV |
1910 | if (!base) |
1911 | base = priv->shrd->fw->init_evtlog_ptr; | |
1912 | } else { | |
1913 | if (!base) | |
1914 | base = priv->shrd->fw->inst_evtlog_ptr; | |
1915 | } | |
1916 | ||
1917 | if (mode == 0) | |
1918 | event_size = 2 * sizeof(u32); | |
1919 | else | |
1920 | event_size = 3 * sizeof(u32); | |
1921 | ||
1922 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1923 | ||
1924 | /* Make sure device is powered up for SRAM reads */ | |
1925 | spin_lock_irqsave(&trans->reg_lock, reg_flags); | |
1926 | if (unlikely(!iwl_grab_nic_access(trans))) | |
1927 | goto out_unlock; | |
1928 | ||
1929 | /* Set starting address; reads will auto-increment */ | |
1930 | iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr); | |
1931 | ||
1932 | /* "time" is actually "data" for mode 0 (no timestamp). | |
1933 | * place event id # at far right for easier visual parsing. */ | |
1934 | for (i = 0; i < num_events; i++) { | |
1935 | ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT); | |
1936 | time = iwl_read32(trans, HBUS_TARG_MEM_RDAT); | |
1937 | if (mode == 0) { | |
1938 | /* data, ev */ | |
1939 | if (bufsz) { | |
1940 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1941 | "EVT_LOG:0x%08x:%04u\n", | |
1942 | time, ev); | |
1943 | } else { | |
1944 | trace_iwlwifi_dev_ucode_event(trans->dev, 0, | |
1945 | time, ev); | |
1946 | IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", | |
1947 | time, ev); | |
1948 | } | |
1949 | } else { | |
1950 | data = iwl_read32(trans, HBUS_TARG_MEM_RDAT); | |
1951 | if (bufsz) { | |
1952 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1953 | "EVT_LOGT:%010u:0x%08x:%04u\n", | |
1954 | time, data, ev); | |
1955 | } else { | |
1956 | IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", | |
1957 | time, data, ev); | |
1958 | trace_iwlwifi_dev_ucode_event(trans->dev, time, | |
1959 | data, ev); | |
1960 | } | |
1961 | } | |
1962 | } | |
1963 | ||
1964 | /* Allow device to power down */ | |
1965 | iwl_release_nic_access(trans); | |
1966 | out_unlock: | |
1967 | spin_unlock_irqrestore(&trans->reg_lock, reg_flags); | |
1968 | return pos; | |
1969 | } | |
1970 | ||
1971 | /** | |
1972 | * iwl_print_last_event_logs - Dump the newest # of event log to syslog | |
1973 | */ | |
1974 | static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity, | |
1975 | u32 num_wraps, u32 next_entry, | |
1976 | u32 size, u32 mode, | |
1977 | int pos, char **buf, size_t bufsz) | |
1978 | { | |
1979 | /* | |
1980 | * display the newest DEFAULT_LOG_ENTRIES entries | |
1981 | * i.e the entries just before the next ont that uCode would fill. | |
1982 | */ | |
1983 | if (num_wraps) { | |
1984 | if (next_entry < size) { | |
1985 | pos = iwl_print_event_log(priv, | |
1986 | capacity - (size - next_entry), | |
1987 | size - next_entry, mode, | |
1988 | pos, buf, bufsz); | |
1989 | pos = iwl_print_event_log(priv, 0, | |
1990 | next_entry, mode, | |
1991 | pos, buf, bufsz); | |
1992 | } else | |
1993 | pos = iwl_print_event_log(priv, next_entry - size, | |
1994 | size, mode, pos, buf, bufsz); | |
1995 | } else { | |
1996 | if (next_entry < size) { | |
1997 | pos = iwl_print_event_log(priv, 0, next_entry, | |
1998 | mode, pos, buf, bufsz); | |
1999 | } else { | |
2000 | pos = iwl_print_event_log(priv, next_entry - size, | |
2001 | size, mode, pos, buf, bufsz); | |
2002 | } | |
2003 | } | |
2004 | return pos; | |
2005 | } | |
2006 | ||
2007 | #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20) | |
2008 | ||
2009 | int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, | |
2010 | char **buf, bool display) | |
2011 | { | |
2012 | u32 base; /* SRAM byte address of event log header */ | |
2013 | u32 capacity; /* event log capacity in # entries */ | |
2014 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
2015 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
2016 | u32 next_entry; /* index of next entry to be written by uCode */ | |
2017 | u32 size; /* # entries that we'll print */ | |
2018 | u32 logsize; | |
2019 | int pos = 0; | |
2020 | size_t bufsz = 0; | |
2021 | struct iwl_trans *trans = trans(priv); | |
2022 | ||
2023 | base = priv->device_pointers.log_event_table; | |
a42506eb | 2024 | if (priv->cur_ucode == IWL_UCODE_INIT) { |
2fdfc476 MV |
2025 | logsize = priv->shrd->fw->init_evtlog_size; |
2026 | if (!base) | |
2027 | base = priv->shrd->fw->init_evtlog_ptr; | |
2028 | } else { | |
2029 | logsize = priv->shrd->fw->inst_evtlog_size; | |
2030 | if (!base) | |
2031 | base = priv->shrd->fw->inst_evtlog_ptr; | |
2032 | } | |
2033 | ||
2034 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { | |
2035 | IWL_ERR(priv, | |
2036 | "Invalid event log pointer 0x%08X for %s uCode\n", | |
2037 | base, | |
a42506eb | 2038 | (priv->cur_ucode == IWL_UCODE_INIT) |
2fdfc476 MV |
2039 | ? "Init" : "RT"); |
2040 | return -EINVAL; | |
2041 | } | |
2042 | ||
2043 | /* event log header */ | |
2044 | capacity = iwl_read_targ_mem(trans, base); | |
2045 | mode = iwl_read_targ_mem(trans, base + (1 * sizeof(u32))); | |
2046 | num_wraps = iwl_read_targ_mem(trans, base + (2 * sizeof(u32))); | |
2047 | next_entry = iwl_read_targ_mem(trans, base + (3 * sizeof(u32))); | |
2048 | ||
2049 | if (capacity > logsize) { | |
2050 | IWL_ERR(priv, "Log capacity %d is bogus, limit to %d " | |
2051 | "entries\n", capacity, logsize); | |
2052 | capacity = logsize; | |
2053 | } | |
2054 | ||
2055 | if (next_entry > logsize) { | |
2056 | IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", | |
2057 | next_entry, logsize); | |
2058 | next_entry = logsize; | |
2059 | } | |
2060 | ||
2061 | size = num_wraps ? capacity : next_entry; | |
2062 | ||
2063 | /* bail out if nothing in log */ | |
2064 | if (size == 0) { | |
2065 | IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n"); | |
2066 | return pos; | |
2067 | } | |
2068 | ||
2069 | #ifdef CONFIG_IWLWIFI_DEBUG | |
2070 | if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log) | |
2071 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) | |
2072 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
2073 | #else | |
2074 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) | |
2075 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
2076 | #endif | |
2077 | IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", | |
2078 | size); | |
2079 | ||
2080 | #ifdef CONFIG_IWLWIFI_DEBUG | |
2081 | if (display) { | |
2082 | if (full_log) | |
2083 | bufsz = capacity * 48; | |
2084 | else | |
2085 | bufsz = size * 48; | |
2086 | *buf = kmalloc(bufsz, GFP_KERNEL); | |
2087 | if (!*buf) | |
2088 | return -ENOMEM; | |
2089 | } | |
2090 | if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) { | |
2091 | /* | |
2092 | * if uCode has wrapped back to top of log, | |
2093 | * start at the oldest entry, | |
2094 | * i.e the next one that uCode would fill. | |
2095 | */ | |
2096 | if (num_wraps) | |
2097 | pos = iwl_print_event_log(priv, next_entry, | |
2098 | capacity - next_entry, mode, | |
2099 | pos, buf, bufsz); | |
2100 | /* (then/else) start at top of log */ | |
2101 | pos = iwl_print_event_log(priv, 0, | |
2102 | next_entry, mode, pos, buf, bufsz); | |
2103 | } else | |
2104 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, | |
2105 | next_entry, size, mode, | |
2106 | pos, buf, bufsz); | |
2107 | #else | |
2108 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, | |
2109 | next_entry, size, mode, | |
2110 | pos, buf, bufsz); | |
2111 | #endif | |
2112 | return pos; | |
2113 | } | |
2114 | ||
19469f47 MV |
2115 | static void iwl_nic_error(struct iwl_op_mode *op_mode) |
2116 | { | |
2117 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
2118 | ||
2fdfc476 MV |
2119 | IWL_ERR(priv, "Loaded firmware version: %s\n", |
2120 | priv->shrd->fw->fw_version); | |
2121 | ||
2122 | iwl_dump_nic_error_log(priv); | |
2123 | iwl_dump_nic_event_log(priv, false, NULL, false); | |
2124 | ||
19469f47 MV |
2125 | iwlagn_fw_error(priv, false); |
2126 | } | |
2127 | ||
0e781842 JB |
2128 | static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode) |
2129 | { | |
2130 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
2131 | ||
2132 | if (!iwl_check_for_ct_kill(priv)) { | |
2133 | IWL_ERR(priv, "Restarting adapter queue is full\n"); | |
b7e21bf0 | 2134 | iwlagn_fw_error(priv, false); |
0e781842 JB |
2135 | } |
2136 | } | |
2137 | ||
ecdb975c JB |
2138 | static void iwl_nic_config(struct iwl_op_mode *op_mode) |
2139 | { | |
2140 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
2141 | ||
2142 | cfg(priv)->lib->nic_config(priv); | |
2143 | } | |
2144 | ||
9eae88fa | 2145 | static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue) |
e755f882 JB |
2146 | { |
2147 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
9eae88fa JB |
2148 | int ac = priv->queue_to_ac[queue]; |
2149 | ||
2150 | if (WARN_ON_ONCE(ac == IWL_INVALID_AC)) | |
2151 | return; | |
2152 | ||
2153 | if (atomic_inc_return(&priv->ac_stop_count[ac]) > 1) { | |
2154 | IWL_DEBUG_TX_QUEUES(priv, | |
2155 | "queue %d (AC %d) already stopped\n", | |
2156 | queue, ac); | |
2157 | return; | |
2158 | } | |
e755f882 JB |
2159 | |
2160 | set_bit(ac, &priv->transport_queue_stop); | |
2161 | ieee80211_stop_queue(priv->hw, ac); | |
2162 | } | |
2163 | ||
9eae88fa | 2164 | static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue) |
e755f882 JB |
2165 | { |
2166 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
9eae88fa JB |
2167 | int ac = priv->queue_to_ac[queue]; |
2168 | ||
2169 | if (WARN_ON_ONCE(ac == IWL_INVALID_AC)) | |
2170 | return; | |
2171 | ||
2172 | if (atomic_dec_return(&priv->ac_stop_count[ac]) > 0) { | |
2173 | IWL_DEBUG_TX_QUEUES(priv, | |
2174 | "queue %d (AC %d) already awake\n", | |
2175 | queue, ac); | |
2176 | return; | |
2177 | } | |
e755f882 JB |
2178 | |
2179 | clear_bit(ac, &priv->transport_queue_stop); | |
2180 | ||
2181 | if (!priv->passive_no_rx) | |
2182 | ieee80211_wake_queue(priv->hw, ac); | |
2183 | } | |
2184 | ||
2185 | void iwlagn_lift_passive_no_rx(struct iwl_priv *priv) | |
2186 | { | |
2187 | int ac; | |
2188 | ||
2189 | if (!priv->passive_no_rx) | |
2190 | return; | |
2191 | ||
2192 | for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ac++) { | |
3251715d EG |
2193 | if (!test_bit(ac, &priv->transport_queue_stop)) { |
2194 | IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d"); | |
e755f882 | 2195 | ieee80211_wake_queue(priv->hw, ac); |
3251715d EG |
2196 | } else { |
2197 | IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d"); | |
2198 | } | |
e755f882 JB |
2199 | } |
2200 | ||
2201 | priv->passive_no_rx = false; | |
2202 | } | |
2203 | ||
d0f76d68 EG |
2204 | const struct iwl_op_mode_ops iwl_dvm_ops = { |
2205 | .start = iwl_op_mode_dvm_start, | |
2206 | .stop = iwl_op_mode_dvm_stop, | |
db70f290 | 2207 | .rx = iwl_rx_dispatch, |
02e38358 EG |
2208 | .queue_full = iwl_stop_sw_queue, |
2209 | .queue_not_full = iwl_wake_sw_queue, | |
7120d989 | 2210 | .hw_rf_kill = iwl_set_hw_rfkill_state, |
ed277c93 | 2211 | .free_skb = iwl_free_skb, |
bcb9321c | 2212 | .nic_error = iwl_nic_error, |
0e781842 | 2213 | .cmd_queue_full = iwl_cmd_queue_full, |
ecdb975c | 2214 | .nic_config = iwl_nic_config, |
d0f76d68 | 2215 | }; |
b481de9c ZY |
2216 | |
2217 | /***************************************************************************** | |
2218 | * | |
2219 | * driver and module entry point | |
2220 | * | |
2221 | *****************************************************************************/ | |
354928dd SG |
2222 | |
2223 | struct kmem_cache *iwl_tx_cmd_pool; | |
2224 | ||
5b9f8cd3 | 2225 | static int __init iwl_init(void) |
b481de9c ZY |
2226 | { |
2227 | ||
2228 | int ret; | |
c96c31e4 JP |
2229 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
2230 | pr_info(DRV_COPYRIGHT "\n"); | |
897e1cf2 | 2231 | |
354928dd SG |
2232 | iwl_tx_cmd_pool = kmem_cache_create("iwl_dev_cmd", |
2233 | sizeof(struct iwl_device_cmd), | |
2234 | sizeof(void *), 0, NULL); | |
2235 | if (!iwl_tx_cmd_pool) | |
2236 | return -ENOMEM; | |
2237 | ||
e227ceac | 2238 | ret = iwlagn_rate_control_register(); |
897e1cf2 | 2239 | if (ret) { |
c96c31e4 | 2240 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
354928dd | 2241 | goto error_rc_register; |
897e1cf2 RC |
2242 | } |
2243 | ||
48d1a211 | 2244 | ret = iwl_pci_register_driver(); |
48d1a211 | 2245 | if (ret) |
354928dd | 2246 | goto error_pci_register; |
b481de9c | 2247 | return ret; |
897e1cf2 | 2248 | |
354928dd | 2249 | error_pci_register: |
e227ceac | 2250 | iwlagn_rate_control_unregister(); |
354928dd SG |
2251 | error_rc_register: |
2252 | kmem_cache_destroy(iwl_tx_cmd_pool); | |
897e1cf2 | 2253 | return ret; |
b481de9c ZY |
2254 | } |
2255 | ||
5b9f8cd3 | 2256 | static void __exit iwl_exit(void) |
b481de9c | 2257 | { |
48d1a211 | 2258 | iwl_pci_unregister_driver(); |
e227ceac | 2259 | iwlagn_rate_control_unregister(); |
354928dd | 2260 | kmem_cache_destroy(iwl_tx_cmd_pool); |
b481de9c ZY |
2261 | } |
2262 | ||
5b9f8cd3 EG |
2263 | module_exit(iwl_exit); |
2264 | module_init(iwl_init); | |
a562a9dd RC |
2265 | |
2266 | #ifdef CONFIG_IWLWIFI_DEBUG | |
48f20d35 EG |
2267 | module_param_named(debug, iwlagn_mod_params.debug_level, uint, |
2268 | S_IRUGO | S_IWUSR); | |
a562a9dd RC |
2269 | MODULE_PARM_DESC(debug, "debug output mask"); |
2270 | #endif | |
2271 | ||
2b068618 WYG |
2272 | module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); |
2273 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); | |
7428994d JB |
2274 | module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO); |
2275 | MODULE_PARM_DESC(11n_disable, | |
2276 | "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX"); | |
2b068618 WYG |
2277 | module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, |
2278 | int, S_IRUGO); | |
2279 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); | |
2b068618 WYG |
2280 | module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); |
2281 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); | |
dd7a2509 | 2282 | |
48f20d35 EG |
2283 | module_param_named(ucode_alternative, |
2284 | iwlagn_mod_params.wanted_ucode_alternative, | |
2285 | int, S_IRUGO); | |
dd7a2509 JB |
2286 | MODULE_PARM_DESC(ucode_alternative, |
2287 | "specify ucode alternative to use from ucode file"); | |
bee008b7 | 2288 | |
48f20d35 EG |
2289 | module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling, |
2290 | int, S_IRUGO); | |
bee008b7 WYG |
2291 | MODULE_PARM_DESC(antenna_coupling, |
2292 | "specify antenna coupling in dB (defualt: 0 dB)"); | |
f37837c9 | 2293 | |
48f20d35 EG |
2294 | module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce, |
2295 | bool, S_IRUGO); | |
9f28ebc3 | 2296 | MODULE_PARM_DESC(bt_ch_inhibition, |
fee84f0d | 2297 | "Enable BT channel inhibition (default: enable)"); |
b7977ffa SG |
2298 | |
2299 | module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); | |
2300 | MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); | |
2301 | ||
2302 | module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); | |
2303 | MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); | |
b60eec9b | 2304 | |
9995ffe5 | 2305 | module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO); |
300d0834 | 2306 | MODULE_PARM_DESC(wd_disable, |
9995ffe5 WYG |
2307 | "Disable stuck queue watchdog timer 0=system default, " |
2308 | "1=disable, 2=enable (default: 0)"); | |
300d0834 | 2309 | |
b60eec9b WYG |
2310 | /* |
2311 | * set bt_coex_active to true, uCode will do kill/defer | |
2312 | * every time the priority line is asserted (BT is sending signals on the | |
2313 | * priority line in the PCIx). | |
2314 | * set bt_coex_active to false, uCode will ignore the BT activity and | |
2315 | * perform the normal operation | |
2316 | * | |
2317 | * User might experience transmit issue on some platform due to WiFi/BT | |
2318 | * co-exist problem. The possible behaviors are: | |
2319 | * Able to scan and finding all the available AP | |
2320 | * Not able to associate with any AP | |
2321 | * On those platforms, WiFi communication can be restored by set | |
2322 | * "bt_coex_active" module parameter to "false" | |
2323 | * | |
2324 | * default: bt_coex_active = true (BT_COEX_ENABLE) | |
2325 | */ | |
2326 | module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active, | |
2327 | bool, S_IRUGO); | |
2328 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); | |
6b0184c4 WYG |
2329 | |
2330 | module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO); | |
2331 | MODULE_PARM_DESC(led_mode, "0=system default, " | |
42602dd4 | 2332 | "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); |
3f1e5f4a | 2333 | |
0172b029 WYG |
2334 | module_param_named(power_save, iwlagn_mod_params.power_save, |
2335 | bool, S_IRUGO); | |
2336 | MODULE_PARM_DESC(power_save, | |
2337 | "enable WiFi power management (default: disable)"); | |
2338 | ||
f7538168 WYG |
2339 | module_param_named(power_level, iwlagn_mod_params.power_level, |
2340 | int, S_IRUGO); | |
2341 | MODULE_PARM_DESC(power_level, | |
2342 | "default power save level (range from 1 - 5, default: 1)"); | |
2343 | ||
dd5b6d0a WYG |
2344 | module_param_named(auto_agg, iwlagn_mod_params.auto_agg, |
2345 | bool, S_IRUGO); | |
2346 | MODULE_PARM_DESC(auto_agg, | |
2347 | "enable agg w/o check traffic load (default: enable)"); | |
2348 | ||
3f1e5f4a WYG |
2349 | /* |
2350 | * For now, keep using power level 1 instead of automatically | |
2351 | * adjusting ... | |
2352 | */ | |
2353 | module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust, | |
2354 | bool, S_IRUGO); | |
2355 | MODULE_PARM_DESC(no_sleep_autoadjust, | |
2356 | "don't automatically adjust sleep level " | |
2357 | "according to maximum network latency (default: true)"); |