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 | ||
98d4bf0c | 382 | base = priv->shrd->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 | ||
e6dd5838 | 491 | static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) |
4d2a5d0e | 492 | { |
4d2a5d0e JB |
493 | int i; |
494 | ||
495 | /* | |
496 | * The default context is always valid, | |
497 | * the PAN context depends on uCode. | |
498 | */ | |
7a10e3e4 | 499 | priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS); |
4d2a5d0e | 500 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) |
7a10e3e4 | 501 | priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN); |
4d2a5d0e JB |
502 | |
503 | for (i = 0; i < NUM_IWL_RXON_CTX; i++) | |
504 | priv->contexts[i].ctxid = i; | |
505 | ||
506 | priv->contexts[IWL_RXON_CTX_BSS].always_active = true; | |
507 | priv->contexts[IWL_RXON_CTX_BSS].is_active = true; | |
508 | priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; | |
509 | priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; | |
510 | priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; | |
511 | priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; | |
512 | priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; | |
513 | priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; | |
87272af7 | 514 | priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; |
4d2a5d0e JB |
515 | priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = |
516 | BIT(NL80211_IFTYPE_ADHOC); | |
517 | priv->contexts[IWL_RXON_CTX_BSS].interface_modes = | |
518 | BIT(NL80211_IFTYPE_STATION); | |
519 | priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; | |
520 | priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; | |
521 | priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; | |
522 | priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; | |
523 | ||
524 | priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; | |
525 | priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = | |
526 | REPLY_WIPAN_RXON_TIMING; | |
527 | priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = | |
528 | REPLY_WIPAN_RXON_ASSOC; | |
529 | priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; | |
530 | priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; | |
531 | priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; | |
532 | priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; | |
533 | priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; | |
4d2a5d0e JB |
534 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes = |
535 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); | |
c6baf7fb JB |
536 | |
537 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P) | |
538 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= | |
539 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
540 | BIT(NL80211_IFTYPE_P2P_GO); | |
541 | ||
4d2a5d0e JB |
542 | priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; |
543 | priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; | |
544 | priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; | |
545 | ||
546 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
547 | } | |
548 | ||
0975cc8f WYG |
549 | static void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
550 | { | |
551 | struct iwl_ct_kill_config cmd; | |
552 | struct iwl_ct_kill_throttling_config adv_cmd; | |
0975cc8f WYG |
553 | int ret = 0; |
554 | ||
1042db2a | 555 | iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR, |
0975cc8f | 556 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
08ae86ac | 557 | |
0975cc8f WYG |
558 | priv->thermal_throttle.ct_kill_toggle = false; |
559 | ||
38622419 | 560 | if (cfg(priv)->base_params->support_ct_kill_exit) { |
0975cc8f | 561 | adv_cmd.critical_temperature_enter = |
d6189124 | 562 | cpu_to_le32(hw_params(priv).ct_kill_threshold); |
0975cc8f | 563 | adv_cmd.critical_temperature_exit = |
d6189124 | 564 | cpu_to_le32(hw_params(priv).ct_kill_exit_threshold); |
0975cc8f | 565 | |
e10a0533 | 566 | ret = iwl_dvm_send_cmd_pdu(priv, |
e419d62d EG |
567 | REPLY_CT_KILL_CONFIG_CMD, |
568 | CMD_SYNC, sizeof(adv_cmd), &adv_cmd); | |
0975cc8f WYG |
569 | if (ret) |
570 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
571 | else | |
572 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
d6189124 EG |
573 | "succeeded, critical temperature enter is %d," |
574 | "exit is %d\n", | |
575 | hw_params(priv).ct_kill_threshold, | |
576 | hw_params(priv).ct_kill_exit_threshold); | |
0975cc8f WYG |
577 | } else { |
578 | cmd.critical_temperature_R = | |
d6189124 | 579 | cpu_to_le32(hw_params(priv).ct_kill_threshold); |
0975cc8f | 580 | |
e10a0533 | 581 | ret = iwl_dvm_send_cmd_pdu(priv, |
e419d62d EG |
582 | REPLY_CT_KILL_CONFIG_CMD, |
583 | CMD_SYNC, sizeof(cmd), &cmd); | |
0975cc8f WYG |
584 | if (ret) |
585 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
586 | else | |
587 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
d6189124 EG |
588 | "succeeded, " |
589 | "critical temperature is %d\n", | |
590 | hw_params(priv).ct_kill_threshold); | |
0975cc8f WYG |
591 | } |
592 | } | |
593 | ||
6d6a1afd SZ |
594 | static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) |
595 | { | |
596 | struct iwl_calib_cfg_cmd calib_cfg_cmd; | |
597 | struct iwl_host_cmd cmd = { | |
598 | .id = CALIBRATION_CFG_CMD, | |
3fa50738 JB |
599 | .len = { sizeof(struct iwl_calib_cfg_cmd), }, |
600 | .data = { &calib_cfg_cmd, }, | |
6d6a1afd SZ |
601 | }; |
602 | ||
603 | memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); | |
af4dc88c | 604 | calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL; |
7cb1b088 | 605 | calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); |
6d6a1afd | 606 | |
e10a0533 | 607 | return iwl_dvm_send_cmd(priv, &cmd); |
6d6a1afd SZ |
608 | } |
609 | ||
610 | ||
e505c433 WYG |
611 | static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) |
612 | { | |
613 | struct iwl_tx_ant_config_cmd tx_ant_cmd = { | |
614 | .valid = cpu_to_le32(valid_tx_ant), | |
615 | }; | |
616 | ||
0692fe41 | 617 | if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) { |
e505c433 | 618 | IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); |
e10a0533 | 619 | return iwl_dvm_send_cmd_pdu(priv, |
e505c433 WYG |
620 | TX_ANT_CONFIGURATION_CMD, |
621 | CMD_SYNC, | |
622 | sizeof(struct iwl_tx_ant_config_cmd), | |
623 | &tx_ant_cmd); | |
624 | } else { | |
625 | IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); | |
626 | return -EOPNOTSUPP; | |
627 | } | |
628 | } | |
629 | ||
b481de9c | 630 | /** |
4a4a9e81 | 631 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 632 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 633 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 634 | */ |
4613e72d | 635 | int iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 636 | { |
57aab75a | 637 | int ret = 0; |
246ed355 | 638 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
b481de9c | 639 | |
ca7966c8 | 640 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
6d6a1afd | 641 | |
5b9f8cd3 | 642 | /* After the ALIVE response, we can send host commands to the uCode */ |
83626404 | 643 | set_bit(STATUS_ALIVE, &priv->status); |
b481de9c | 644 | |
22de94de SG |
645 | /* Enable watchdog to monitor the driver tx queues */ |
646 | iwl_setup_watchdog(priv); | |
b74e31a9 | 647 | |
83626404 | 648 | if (iwl_is_rfkill(priv)) |
ca7966c8 | 649 | return -ERFKILL; |
b481de9c | 650 | |
98d4bf0c JB |
651 | if (priv->event_log.ucode_trace) { |
652 | /* start collecting data now */ | |
653 | mod_timer(&priv->ucode_trace, jiffies); | |
654 | } | |
655 | ||
bc795df1 | 656 | /* download priority table before any calibration request */ |
38622419 DF |
657 | if (cfg(priv)->bt_params && |
658 | cfg(priv)->bt_params->advanced_bt_coexist) { | |
f7322f8f | 659 | /* Configure Bluetooth device coexistence support */ |
38622419 | 660 | if (cfg(priv)->bt_params->bt_sco_disable) |
207ecc5e MV |
661 | priv->bt_enable_pspoll = false; |
662 | else | |
663 | priv->bt_enable_pspoll = true; | |
664 | ||
f7322f8f WYG |
665 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
666 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; | |
667 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
e55b517c | 668 | iwlagn_send_advance_bt_config(priv); |
f7322f8f | 669 | priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; |
207ecc5e MV |
670 | priv->cur_rssi_ctx = NULL; |
671 | ||
e1991885 | 672 | iwl_send_prio_tbl(priv); |
f7322f8f WYG |
673 | |
674 | /* FIXME: w/a to force change uCode BT state machine */ | |
e1991885 | 675 | ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, |
ca7966c8 JB |
676 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
677 | if (ret) | |
678 | return ret; | |
e1991885 | 679 | ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE, |
ca7966c8 JB |
680 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
681 | if (ret) | |
682 | return ret; | |
e55b517c WYG |
683 | } else { |
684 | /* | |
685 | * default is 2-wire BT coexexistence support | |
686 | */ | |
687 | iwl_send_bt_config(priv); | |
f7322f8f | 688 | } |
e55b517c | 689 | |
885765f1 VM |
690 | /* |
691 | * Perform runtime calibrations, including DC calibration. | |
692 | */ | |
693 | iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX); | |
bc795df1 | 694 | |
36d6825b | 695 | ieee80211_wake_queues(priv->hw); |
b481de9c | 696 | |
470ab2dd | 697 | priv->active_rate = IWL_RATES_MASK; |
b481de9c | 698 | |
2f748dec | 699 | /* Configure Tx antenna selection based on H/W config */ |
7e79a393 | 700 | iwlagn_send_tx_ant_config(priv, hw_params(priv).valid_tx_ant); |
2f748dec | 701 | |
15b86bff | 702 | if (iwl_is_associated_ctx(ctx) && !priv->wowlan) { |
c1adf9fb | 703 | struct iwl_rxon_cmd *active_rxon = |
246ed355 | 704 | (struct iwl_rxon_cmd *)&ctx->active; |
019fb97d | 705 | /* apply any changes in staging */ |
246ed355 | 706 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c ZY |
707 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
708 | } else { | |
d0fe478c | 709 | struct iwl_rxon_context *tmp; |
b481de9c | 710 | /* Initialize our rx_config data */ |
d0fe478c JB |
711 | for_each_context(priv, tmp) |
712 | iwl_connection_init_rx_config(priv, tmp); | |
45823531 | 713 | |
e3f10cea | 714 | iwlagn_set_rxon_chain(priv, ctx); |
b481de9c ZY |
715 | } |
716 | ||
15b86bff | 717 | if (!priv->wowlan) { |
c8ac61cf JB |
718 | /* WoWLAN ucode will not reply in the same way, skip it */ |
719 | iwl_reset_run_time_calib(priv); | |
720 | } | |
4a4a9e81 | 721 | |
83626404 | 722 | set_bit(STATUS_READY, &priv->status); |
9e2e7422 | 723 | |
b481de9c | 724 | /* Configure the adapter for unassociated operation */ |
805a3b81 | 725 | ret = iwlagn_commit_rxon(priv, ctx); |
ca7966c8 JB |
726 | if (ret) |
727 | return ret; | |
b481de9c ZY |
728 | |
729 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 730 | iwl_rf_kill_ct_config(priv); |
5a66926a | 731 | |
e1623446 | 732 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
c46fbefa | 733 | |
ca7966c8 | 734 | return iwl_power_update_mode(priv, true); |
b481de9c ZY |
735 | } |
736 | ||
d316383d JB |
737 | /** |
738 | * iwl_clear_driver_stations - clear knowledge of all stations from driver | |
739 | * @priv: iwl priv struct | |
740 | * | |
741 | * This is called during iwl_down() to make sure that in the case | |
742 | * we're coming there from a hardware restart mac80211 will be | |
743 | * able to reconfigure stations -- if we're getting there in the | |
744 | * normal down flow then the stations will already be cleared. | |
745 | */ | |
746 | static void iwl_clear_driver_stations(struct iwl_priv *priv) | |
747 | { | |
d316383d JB |
748 | struct iwl_rxon_context *ctx; |
749 | ||
fa23cb04 | 750 | spin_lock_bh(&priv->sta_lock); |
d316383d JB |
751 | memset(priv->stations, 0, sizeof(priv->stations)); |
752 | priv->num_stations = 0; | |
753 | ||
754 | priv->ucode_key_table = 0; | |
755 | ||
756 | for_each_context(priv, ctx) { | |
757 | /* | |
758 | * Remove all key information that is not stored as part | |
759 | * of station information since mac80211 may not have had | |
760 | * a chance to remove all the keys. When device is | |
761 | * reconfigured by mac80211 after an error all keys will | |
762 | * be reconfigured. | |
763 | */ | |
764 | memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); | |
765 | ctx->key_mapping_keys = 0; | |
766 | } | |
767 | ||
fa23cb04 | 768 | spin_unlock_bh(&priv->sta_lock); |
d316383d JB |
769 | } |
770 | ||
78e5a464 | 771 | void iwl_down(struct iwl_priv *priv) |
b481de9c | 772 | { |
22dd2fd2 | 773 | int exit_pending; |
b481de9c | 774 | |
e1623446 | 775 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c | 776 | |
b1eea297 | 777 | lockdep_assert_held(&priv->mutex); |
78e5a464 | 778 | |
d745d472 SG |
779 | iwl_scan_cancel_timeout(priv, 200); |
780 | ||
c6baf7fb JB |
781 | /* |
782 | * If active, scanning won't cancel it, so say it expired. | |
783 | * No race since we hold the mutex here and a new one | |
784 | * can't come in at this time. | |
785 | */ | |
786 | ieee80211_remain_on_channel_expired(priv->hw); | |
787 | ||
63013ae3 | 788 | exit_pending = |
83626404 | 789 | test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c | 790 | |
b62177a0 SG |
791 | /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set |
792 | * to prevent rearm timer */ | |
22de94de | 793 | del_timer_sync(&priv->watchdog); |
b62177a0 | 794 | |
dcef732c | 795 | iwl_clear_ucode_stations(priv, NULL); |
a194e324 | 796 | iwl_dealloc_bcast_stations(priv); |
db125c78 | 797 | iwl_clear_driver_stations(priv); |
b481de9c | 798 | |
a1174138 | 799 | /* reset BT coex data */ |
da5dbb97 | 800 | priv->bt_status = 0; |
207ecc5e MV |
801 | priv->cur_rssi_ctx = NULL; |
802 | priv->bt_is_sco = 0; | |
38622419 | 803 | if (cfg(priv)->bt_params) |
7cb1b088 | 804 | priv->bt_traffic_load = |
38622419 | 805 | cfg(priv)->bt_params->bt_init_traffic_load; |
7cb1b088 WYG |
806 | else |
807 | priv->bt_traffic_load = 0; | |
bee008b7 WYG |
808 | priv->bt_full_concurrent = false; |
809 | priv->bt_ci_compliance = 0; | |
a1174138 | 810 | |
b481de9c ZY |
811 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
812 | * exiting the module */ | |
813 | if (!exit_pending) | |
83626404 | 814 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c | 815 | |
859cfb0a | 816 | if (priv->mac80211_registered) |
b481de9c ZY |
817 | ieee80211_stop_queues(priv->hw); |
818 | ||
8f7ffbe2 | 819 | priv->ucode_loaded = false; |
909e9b23 EG |
820 | iwl_trans_stop_device(trans(priv)); |
821 | ||
1a10f433 | 822 | /* Clear out all status bits but a few that are stable across reset */ |
1353a7ba | 823 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
b481de9c | 824 | STATUS_RF_KILL_HW | |
83626404 | 825 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
9788864e | 826 | STATUS_GEO_CONFIGURED | |
83626404 | 827 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
052ec3f1 | 828 | STATUS_EXIT_PENDING; |
1353a7ba DF |
829 | priv->shrd->status &= |
830 | test_bit(STATUS_FW_ERROR, &priv->shrd->status) << | |
831 | STATUS_FW_ERROR; | |
b481de9c | 832 | |
77834543 | 833 | dev_kfree_skb(priv->beacon_skb); |
12e934dc | 834 | priv->beacon_skb = NULL; |
b481de9c ZY |
835 | } |
836 | ||
b481de9c ZY |
837 | /***************************************************************************** |
838 | * | |
839 | * Workqueue callbacks | |
840 | * | |
841 | *****************************************************************************/ | |
842 | ||
16e727e8 EG |
843 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
844 | { | |
845 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
846 | run_time_calib_work); | |
847 | ||
b1eea297 | 848 | mutex_lock(&priv->mutex); |
16e727e8 | 849 | |
83626404 DF |
850 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
851 | test_bit(STATUS_SCANNING, &priv->status)) { | |
b1eea297 | 852 | mutex_unlock(&priv->mutex); |
16e727e8 EG |
853 | return; |
854 | } | |
855 | ||
856 | if (priv->start_calib) { | |
0da0e5bf JB |
857 | iwl_chain_noise_calibration(priv); |
858 | iwl_sensitivity_calibration(priv); | |
16e727e8 EG |
859 | } |
860 | ||
b1eea297 | 861 | mutex_unlock(&priv->mutex); |
16e727e8 EG |
862 | } |
863 | ||
7335613a | 864 | void iwlagn_prepare_restart(struct iwl_priv *priv) |
e43e85c4 | 865 | { |
e43e85c4 JB |
866 | bool bt_full_concurrent; |
867 | u8 bt_ci_compliance; | |
868 | u8 bt_load; | |
869 | u8 bt_status; | |
207ecc5e | 870 | bool bt_is_sco; |
e43e85c4 | 871 | |
b1eea297 | 872 | lockdep_assert_held(&priv->mutex); |
e43e85c4 | 873 | |
e43e85c4 JB |
874 | priv->is_open = 0; |
875 | ||
876 | /* | |
877 | * __iwl_down() will clear the BT status variables, | |
878 | * which is correct, but when we restart we really | |
879 | * want to keep them so restore them afterwards. | |
880 | * | |
881 | * The restart process will later pick them up and | |
882 | * re-configure the hw when we reconfigure the BT | |
883 | * command. | |
884 | */ | |
885 | bt_full_concurrent = priv->bt_full_concurrent; | |
886 | bt_ci_compliance = priv->bt_ci_compliance; | |
887 | bt_load = priv->bt_traffic_load; | |
888 | bt_status = priv->bt_status; | |
207ecc5e | 889 | bt_is_sco = priv->bt_is_sco; |
e43e85c4 | 890 | |
78e5a464 | 891 | iwl_down(priv); |
e43e85c4 JB |
892 | |
893 | priv->bt_full_concurrent = bt_full_concurrent; | |
894 | priv->bt_ci_compliance = bt_ci_compliance; | |
895 | priv->bt_traffic_load = bt_load; | |
896 | priv->bt_status = bt_status; | |
207ecc5e | 897 | priv->bt_is_sco = bt_is_sco; |
e43e85c4 JB |
898 | } |
899 | ||
5b9f8cd3 | 900 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 901 | { |
c79dd5b5 | 902 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c | 903 | |
83626404 | 904 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
905 | return; |
906 | ||
63013ae3 | 907 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) { |
b1eea297 | 908 | mutex_lock(&priv->mutex); |
e43e85c4 | 909 | iwlagn_prepare_restart(priv); |
b1eea297 | 910 | mutex_unlock(&priv->mutex); |
a1174138 | 911 | iwl_cancel_deferred_work(priv); |
19cc1087 JB |
912 | ieee80211_restart_hw(priv->hw); |
913 | } else { | |
ca7966c8 | 914 | WARN_ON(1); |
19cc1087 | 915 | } |
b481de9c ZY |
916 | } |
917 | ||
0fd09502 | 918 | |
0fd09502 | 919 | |
0fd09502 | 920 | |
7335613a | 921 | void iwlagn_disable_roc(struct iwl_priv *priv) |
f0b6e2e8 | 922 | { |
7335613a | 923 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
f0b6e2e8 | 924 | |
b1eea297 | 925 | lockdep_assert_held(&priv->mutex); |
f0b6e2e8 | 926 | |
7335613a WYG |
927 | if (!priv->hw_roc_setup) |
928 | return; | |
f0b6e2e8 | 929 | |
7335613a WYG |
930 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
931 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
f0b6e2e8 | 932 | |
7335613a | 933 | priv->hw_roc_channel = NULL; |
f0b6e2e8 | 934 | |
7335613a | 935 | memset(ctx->staging.node_addr, 0, ETH_ALEN); |
5ed540ae | 936 | |
7335613a | 937 | iwlagn_commit_rxon(priv, ctx); |
f0b6e2e8 | 938 | |
7335613a WYG |
939 | ctx->is_active = false; |
940 | priv->hw_roc_setup = false; | |
f0b6e2e8 RC |
941 | } |
942 | ||
7335613a | 943 | static void iwlagn_disable_roc_work(struct work_struct *work) |
b481de9c | 944 | { |
7335613a WYG |
945 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
946 | hw_roc_disable_work.work); | |
b481de9c | 947 | |
b1eea297 | 948 | mutex_lock(&priv->mutex); |
7335613a | 949 | iwlagn_disable_roc(priv); |
b1eea297 | 950 | mutex_unlock(&priv->mutex); |
b481de9c ZY |
951 | } |
952 | ||
7335613a WYG |
953 | /***************************************************************************** |
954 | * | |
955 | * driver setup and teardown | |
956 | * | |
957 | *****************************************************************************/ | |
958 | ||
959 | static void iwl_setup_deferred_work(struct iwl_priv *priv) | |
b481de9c | 960 | { |
1ee158d8 | 961 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c | 962 | |
7335613a WYG |
963 | INIT_WORK(&priv->restart, iwl_bg_restart); |
964 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); | |
965 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); | |
966 | INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); | |
967 | INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); | |
968 | INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); | |
969 | INIT_DELAYED_WORK(&priv->hw_roc_disable_work, | |
970 | iwlagn_disable_roc_work); | |
e655b9f0 | 971 | |
7335613a | 972 | iwl_setup_scan_deferred_work(priv); |
5a66926a | 973 | |
562f08eb JB |
974 | if (cfg(priv)->bt_params) |
975 | iwlagn_bt_setup_deferred_work(priv); | |
5a66926a | 976 | |
7335613a WYG |
977 | init_timer(&priv->statistics_periodic); |
978 | priv->statistics_periodic.data = (unsigned long)priv; | |
979 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; | |
6cd0b1cb | 980 | |
7335613a WYG |
981 | init_timer(&priv->ucode_trace); |
982 | priv->ucode_trace.data = (unsigned long)priv; | |
983 | priv->ucode_trace.function = iwl_bg_ucode_trace; | |
948c171c | 984 | |
7335613a WYG |
985 | init_timer(&priv->watchdog); |
986 | priv->watchdog.data = (unsigned long)priv; | |
987 | priv->watchdog.function = iwl_bg_watchdog; | |
b481de9c ZY |
988 | } |
989 | ||
78e5a464 | 990 | void iwl_cancel_deferred_work(struct iwl_priv *priv) |
c8ac61cf | 991 | { |
562f08eb JB |
992 | if (cfg(priv)->bt_params) |
993 | iwlagn_bt_cancel_deferred_work(priv); | |
c8ac61cf | 994 | |
7335613a WYG |
995 | cancel_work_sync(&priv->run_time_calib_work); |
996 | cancel_work_sync(&priv->beacon_update); | |
c8ac61cf | 997 | |
7335613a | 998 | iwl_cancel_scan_deferred_work(priv); |
c8ac61cf | 999 | |
7335613a WYG |
1000 | cancel_work_sync(&priv->bt_full_concurrency); |
1001 | cancel_work_sync(&priv->bt_runtime_config); | |
1002 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
c8ac61cf | 1003 | |
7335613a WYG |
1004 | del_timer_sync(&priv->statistics_periodic); |
1005 | del_timer_sync(&priv->ucode_trace); | |
1006 | } | |
c8ac61cf | 1007 | |
03dadf96 | 1008 | static void iwl_init_hw_rates(struct ieee80211_rate *rates) |
7335613a WYG |
1009 | { |
1010 | int i; | |
c8ac61cf | 1011 | |
7335613a WYG |
1012 | for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { |
1013 | rates[i].bitrate = iwl_rates[i].ieee * 5; | |
1014 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
1015 | rates[i].hw_value_short = i; | |
1016 | rates[i].flags = 0; | |
1017 | if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { | |
1018 | /* | |
1019 | * If CCK != 1M then set short preamble rate flag. | |
1020 | */ | |
1021 | rates[i].flags |= | |
1022 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? | |
1023 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; | |
1024 | } | |
c8ac61cf | 1025 | } |
c8ac61cf JB |
1026 | } |
1027 | ||
7335613a | 1028 | static int iwl_init_drv(struct iwl_priv *priv) |
c8ac61cf | 1029 | { |
7335613a | 1030 | int ret; |
c8ac61cf | 1031 | |
fa23cb04 | 1032 | spin_lock_init(&priv->sta_lock); |
c8ac61cf | 1033 | |
b1eea297 | 1034 | mutex_init(&priv->mutex); |
c8ac61cf | 1035 | |
e1991885 | 1036 | INIT_LIST_HEAD(&priv->calib_results); |
80e83da7 | 1037 | |
7335613a WYG |
1038 | priv->ieee_channels = NULL; |
1039 | priv->ieee_rates = NULL; | |
1040 | priv->band = IEEE80211_BAND_2GHZ; | |
c8ac61cf | 1041 | |
ab5c0f1f JB |
1042 | priv->plcp_delta_threshold = |
1043 | cfg(priv)->base_params->plcp_delta_threshold; | |
1044 | ||
7335613a WYG |
1045 | priv->iw_mode = NL80211_IFTYPE_STATION; |
1046 | priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; | |
1047 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; | |
1048 | priv->agg_tids_count = 0; | |
c8ac61cf | 1049 | |
947a9407 JB |
1050 | priv->ucode_owner = IWL_OWNERSHIP_DRIVER; |
1051 | ||
7335613a WYG |
1052 | /* initialize force reset */ |
1053 | priv->force_reset[IWL_RF_RESET].reset_duration = | |
1054 | IWL_DELAY_NEXT_FORCE_RF_RESET; | |
1055 | priv->force_reset[IWL_FW_RESET].reset_duration = | |
1056 | IWL_DELAY_NEXT_FORCE_FW_RELOAD; | |
c8ac61cf | 1057 | |
7335613a | 1058 | priv->rx_statistics_jiffies = jiffies; |
c8ac61cf | 1059 | |
7335613a WYG |
1060 | /* Choose which receivers/antennas to use */ |
1061 | iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); | |
c8ac61cf | 1062 | |
7335613a | 1063 | iwl_init_scan_params(priv); |
c8ac61cf | 1064 | |
7335613a | 1065 | /* init bt coex */ |
38622419 DF |
1066 | if (cfg(priv)->bt_params && |
1067 | cfg(priv)->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1068 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
1069 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
1070 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; | |
1071 | priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; | |
1072 | priv->bt_duration = BT_DURATION_LIMIT_DEF; | |
1073 | priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; | |
1074 | } | |
c8ac61cf | 1075 | |
7335613a | 1076 | ret = iwl_init_channel_map(priv); |
c8ac61cf | 1077 | if (ret) { |
7335613a WYG |
1078 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
1079 | goto err; | |
c8ac61cf JB |
1080 | } |
1081 | ||
7335613a WYG |
1082 | ret = iwl_init_geos(priv); |
1083 | if (ret) { | |
1084 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
1085 | goto err_free_channel_map; | |
1086 | } | |
03dadf96 | 1087 | iwl_init_hw_rates(priv->ieee_rates); |
c8ac61cf | 1088 | |
7335613a | 1089 | return 0; |
c8ac61cf | 1090 | |
7335613a WYG |
1091 | err_free_channel_map: |
1092 | iwl_free_channel_map(priv); | |
1093 | err: | |
1094 | return ret; | |
1095 | } | |
c8ac61cf | 1096 | |
7335613a WYG |
1097 | static void iwl_uninit_drv(struct iwl_priv *priv) |
1098 | { | |
7335613a WYG |
1099 | iwl_free_geos(priv); |
1100 | iwl_free_channel_map(priv); | |
7335613a WYG |
1101 | kfree(priv->scan_cmd); |
1102 | kfree(priv->beacon_cmd); | |
1103 | kfree(rcu_dereference_raw(priv->noa_data)); | |
e1991885 | 1104 | iwl_calib_free_results(priv); |
7335613a WYG |
1105 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1106 | kfree(priv->wowlan_sram); | |
1107 | #endif | |
1108 | } | |
c8ac61cf | 1109 | |
7335613a WYG |
1110 | /* Size of one Rx buffer in host DRAM */ |
1111 | #define IWL_RX_BUF_SIZE_4K (4 * 1024) | |
1112 | #define IWL_RX_BUF_SIZE_8K (8 * 1024) | |
dda61a44 | 1113 | |
6d4dec7b | 1114 | static void iwl_set_hw_params(struct iwl_priv *priv) |
07d4f1ad | 1115 | { |
b9ad70da JB |
1116 | if (cfg(priv)->ht_params) |
1117 | hw_params(priv).use_rts_for_aggregation = | |
1118 | cfg(priv)->ht_params->use_rts_for_aggregation; | |
1119 | ||
9d143e9a | 1120 | if (iwlagn_mod_params.amsdu_size_8K) |
d6189124 EG |
1121 | hw_params(priv).rx_page_order = |
1122 | get_order(IWL_RX_BUF_SIZE_8K); | |
07d4f1ad | 1123 | else |
d6189124 EG |
1124 | hw_params(priv).rx_page_order = |
1125 | get_order(IWL_RX_BUF_SIZE_4K); | |
07d4f1ad | 1126 | |
7428994d | 1127 | if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL) |
54708d8d | 1128 | hw_params(priv).sku &= ~EEPROM_SKU_CAP_11N_ENABLE; |
07d4f1ad | 1129 | |
fd656935 | 1130 | hw_params(priv).num_ampdu_queues = |
38622419 | 1131 | cfg(priv)->base_params->num_of_ampdu_queues; |
38622419 | 1132 | hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout; |
fd656935 | 1133 | |
07d4f1ad | 1134 | /* Device-specific setup */ |
6d4dec7b | 1135 | cfg(priv)->lib->set_hw_params(priv); |
07d4f1ad WYG |
1136 | } |
1137 | ||
119ea186 | 1138 | |
119ea186 | 1139 | |
ebfa867d WYG |
1140 | static void iwl_debug_config(struct iwl_priv *priv) |
1141 | { | |
1042db2a | 1142 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG " |
ebfa867d WYG |
1143 | #ifdef CONFIG_IWLWIFI_DEBUG |
1144 | "enabled\n"); | |
1145 | #else | |
1146 | "disabled\n"); | |
1147 | #endif | |
1042db2a | 1148 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS " |
ebfa867d WYG |
1149 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1150 | "enabled\n"); | |
1151 | #else | |
1152 | "disabled\n"); | |
1153 | #endif | |
1042db2a | 1154 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING " |
ebfa867d WYG |
1155 | #ifdef CONFIG_IWLWIFI_DEVICE_TRACING |
1156 | "enabled\n"); | |
1157 | #else | |
1158 | "disabled\n"); | |
1159 | #endif | |
1160 | ||
1042db2a | 1161 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE " |
5ef15ccc | 1162 | #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE |
ebfa867d WYG |
1163 | "enabled\n"); |
1164 | #else | |
1165 | "disabled\n"); | |
0cb38d65 | 1166 | #endif |
1042db2a | 1167 | dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P " |
0cb38d65 WYG |
1168 | #ifdef CONFIG_IWLWIFI_P2P |
1169 | "enabled\n"); | |
1170 | #else | |
1171 | "disabled\n"); | |
ebfa867d WYG |
1172 | #endif |
1173 | } | |
1174 | ||
0692fe41 JB |
1175 | static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, |
1176 | const struct iwl_fw *fw) | |
b2ea345e WYG |
1177 | { |
1178 | int err = 0; | |
1179 | struct iwl_priv *priv; | |
1180 | struct ieee80211_hw *hw; | |
d0f76d68 | 1181 | struct iwl_op_mode *op_mode; |
084dd791 | 1182 | u16 num_mac; |
a78be210 | 1183 | u32 ucode_flags; |
92d743ae | 1184 | struct iwl_trans_config trans_cfg; |
d663ee73 JB |
1185 | static const u8 no_reclaim_cmds[] = { |
1186 | REPLY_RX_PHY_CMD, | |
1187 | REPLY_RX, | |
1188 | REPLY_RX_MPDU_CMD, | |
1189 | REPLY_COMPRESSED_BA, | |
1190 | STATISTICS_NOTIFICATION, | |
1191 | REPLY_TX, | |
1192 | }; | |
b2ea345e WYG |
1193 | |
1194 | /************************ | |
1195 | * 1. Allocating HW data | |
1196 | ************************/ | |
fa06ec79 | 1197 | hw = iwl_alloc_all(); |
b2ea345e | 1198 | if (!hw) { |
d0f76d68 EG |
1199 | pr_err("%s: Cannot allocate network device\n", |
1200 | cfg(trans)->name); | |
b2ea345e | 1201 | err = -ENOMEM; |
807caf26 EG |
1202 | goto out; |
1203 | } | |
1204 | ||
d0f76d68 EG |
1205 | op_mode = hw->priv; |
1206 | op_mode->ops = &iwl_dvm_ops; | |
1207 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
1208 | priv->shrd = trans->shrd; | |
0692fe41 JB |
1209 | priv->fw = fw; |
1210 | /* TODO: remove fw from shared data later */ | |
1211 | priv->shrd->fw = fw; | |
a48709c5 | 1212 | |
3dc420be EG |
1213 | /* |
1214 | * Populate the state variables that the transport layer needs | |
1215 | * to know about. | |
1216 | */ | |
1217 | trans_cfg.op_mode = op_mode; | |
d663ee73 JB |
1218 | trans_cfg.no_reclaim_cmds = no_reclaim_cmds; |
1219 | trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); | |
9bdfbfad MV |
1220 | |
1221 | ucode_flags = fw->ucode_capa.flags; | |
1222 | ||
1223 | #ifndef CONFIG_IWLWIFI_P2P | |
1224 | ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN; | |
1225 | #endif | |
92d743ae | 1226 | |
c6f600fc MV |
1227 | if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) { |
1228 | priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; | |
1229 | trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; | |
1230 | } else { | |
1231 | priv->sta_key_max_num = STA_KEY_MAX_NUM; | |
1232 | trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; | |
1233 | } | |
1234 | ||
92d743ae MV |
1235 | /* Configure transport layer */ |
1236 | iwl_trans_configure(trans(priv), &trans_cfg); | |
ed277c93 | 1237 | |
b2ea345e | 1238 | /* At this point both hw and priv are allocated. */ |
8f2d3d2a | 1239 | |
d0f76d68 | 1240 | SET_IEEE80211_DEV(priv->hw, trans(priv)->dev); |
b481de9c | 1241 | |
1589c562 | 1242 | /* show what debugging capabilities we have */ |
ebfa867d WYG |
1243 | iwl_debug_config(priv); |
1244 | ||
e1623446 | 1245 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
316c30d9 | 1246 | |
bee008b7 WYG |
1247 | /* is antenna coupling more than 35dB ? */ |
1248 | priv->bt_ant_couple_ok = | |
48f20d35 EG |
1249 | (iwlagn_mod_params.ant_coupling > |
1250 | IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? | |
1251 | true : false; | |
bee008b7 | 1252 | |
9f28ebc3 | 1253 | /* enable/disable bt channel inhibition */ |
48f20d35 | 1254 | priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce; |
9f28ebc3 WYG |
1255 | IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", |
1256 | (priv->bt_ch_announce) ? "On" : "Off"); | |
f37837c9 | 1257 | |
20594eb0 WYG |
1258 | if (iwl_alloc_traffic_mem(priv)) |
1259 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 1260 | |
731a29b7 | 1261 | /* these spin locks will be used in apm_ops.init and EEPROM access |
a8b50a0a MA |
1262 | * we should init now |
1263 | */ | |
1042db2a | 1264 | spin_lock_init(&trans(priv)->reg_lock); |
4ff70fcd | 1265 | spin_lock_init(&priv->statistics.lock); |
4843b5a7 | 1266 | |
084dd791 | 1267 | /*********************** |
3dc420be | 1268 | * 2. Read REV register |
084dd791 | 1269 | ***********************/ |
c11362c0 | 1270 | IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
08079a49 | 1271 | cfg(priv)->name, trans(priv)->hw_rev); |
316c30d9 | 1272 | |
57a1dc89 | 1273 | err = iwl_trans_start_hw(trans(priv)); |
1e89cbac | 1274 | if (err) |
b52e7ea1 | 1275 | goto out_free_traffic_mem; |
1e89cbac | 1276 | |
91238714 | 1277 | /***************** |
3dc420be | 1278 | * 3. Read EEPROM |
91238714 | 1279 | *****************/ |
ca77d534 | 1280 | err = iwl_eeprom_init(trans(priv), trans(priv)->hw_rev); |
8747bb49 | 1281 | /* Reset chip to save power until we load uCode during "up". */ |
cc56feb2 | 1282 | iwl_trans_stop_hw(trans(priv)); |
316c30d9 | 1283 | if (err) { |
15b1687c | 1284 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
b52e7ea1 | 1285 | goto out_free_traffic_mem; |
316c30d9 | 1286 | } |
8614f360 TW |
1287 | err = iwl_eeprom_check_version(priv); |
1288 | if (err) | |
c8f16138 | 1289 | goto out_free_eeprom; |
8614f360 | 1290 | |
54708d8d | 1291 | err = iwl_eeprom_init_hw_params(priv); |
21a5b3c6 WYG |
1292 | if (err) |
1293 | goto out_free_eeprom; | |
1294 | ||
02883017 | 1295 | /* extract MAC Address */ |
ab36eab2 | 1296 | iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr); |
c6fa17ed WYG |
1297 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); |
1298 | priv->hw->wiphy->addresses = priv->addresses; | |
1299 | priv->hw->wiphy->n_addresses = 1; | |
ab36eab2 | 1300 | num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS); |
c6fa17ed WYG |
1301 | if (num_mac > 1) { |
1302 | memcpy(priv->addresses[1].addr, priv->addresses[0].addr, | |
1303 | ETH_ALEN); | |
1304 | priv->addresses[1].addr[5]++; | |
1305 | priv->hw->wiphy->n_addresses++; | |
1306 | } | |
316c30d9 | 1307 | |
3dc420be EG |
1308 | /************************ |
1309 | * 4. Setup HW constants | |
1310 | ************************/ | |
1311 | iwl_set_hw_params(priv); | |
1312 | ||
1313 | if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE)) { | |
1314 | IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN"); | |
1315 | ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN; | |
1316 | /* | |
1317 | * if not PAN, then don't support P2P -- might be a uCode | |
1318 | * packaging bug or due to the eeprom check above | |
1319 | */ | |
1320 | ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P; | |
1321 | priv->sta_key_max_num = STA_KEY_MAX_NUM; | |
1322 | trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; | |
1323 | ||
1324 | /* Configure transport layer again*/ | |
1325 | iwl_trans_configure(trans(priv), &trans_cfg); | |
1326 | } | |
1327 | ||
316c30d9 | 1328 | /******************* |
3dc420be | 1329 | * 5. Setup priv |
316c30d9 | 1330 | *******************/ |
b481de9c | 1331 | |
6ba87956 | 1332 | err = iwl_init_drv(priv); |
bf85ea4f | 1333 | if (err) |
399f4900 | 1334 | goto out_free_eeprom; |
bf85ea4f | 1335 | /* At this point both hw and priv are initialized. */ |
316c30d9 | 1336 | |
316c30d9 | 1337 | /******************** |
3dc420be | 1338 | * 6. Setup services |
316c30d9 | 1339 | ********************/ |
4e39317d | 1340 | iwl_setup_deferred_work(priv); |
653fa4a0 | 1341 | iwl_setup_rx_handlers(priv); |
4613e72d | 1342 | iwl_testmode_init(priv); |
316c30d9 | 1343 | |
58d0f361 | 1344 | iwl_power_initialize(priv); |
39b73fb1 | 1345 | iwl_tt_initialize(priv); |
158bea07 | 1346 | |
e211b242 EG |
1347 | snprintf(priv->hw->wiphy->fw_version, |
1348 | sizeof(priv->hw->wiphy->fw_version), | |
1349 | "%s", fw->fw_version); | |
1350 | ||
1351 | priv->new_scan_threshold_behaviour = | |
a78be210 | 1352 | !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); |
562db532 | 1353 | |
e211b242 EG |
1354 | priv->phy_calib_chain_noise_reset_cmd = |
1355 | fw->ucode_capa.standard_phy_calibration_size; | |
1356 | priv->phy_calib_chain_noise_gain_cmd = | |
1357 | fw->ucode_capa.standard_phy_calibration_size + 1; | |
1358 | ||
1359 | /* initialize all valid contexts */ | |
a78be210 | 1360 | iwl_init_context(priv, ucode_flags); |
e211b242 EG |
1361 | |
1362 | /************************************************** | |
1363 | * This is still part of probe() in a sense... | |
1364 | * | |
3dc420be | 1365 | * 7. Setup and register with mac80211 and debugfs |
e211b242 EG |
1366 | **************************************************/ |
1367 | err = iwlagn_mac_setup_register(priv, &fw->ucode_capa); | |
158bea07 | 1368 | if (err) |
7d47618a | 1369 | goto out_destroy_workqueue; |
158bea07 | 1370 | |
e211b242 EG |
1371 | err = iwl_dbgfs_register(priv, DRV_NAME); |
1372 | if (err) | |
1373 | IWL_ERR(priv, | |
1374 | "failed to create debugfs files. Ignoring error: %d\n", | |
1375 | err); | |
1376 | ||
d0f76d68 | 1377 | return op_mode; |
b481de9c | 1378 | |
34c1b7ba | 1379 | out_destroy_workqueue: |
1ee158d8 JB |
1380 | destroy_workqueue(priv->workqueue); |
1381 | priv->workqueue = NULL; | |
6ba87956 | 1382 | iwl_uninit_drv(priv); |
34c1b7ba | 1383 | out_free_eeprom: |
ab36eab2 | 1384 | iwl_eeprom_free(priv->shrd); |
34c1b7ba | 1385 | out_free_traffic_mem: |
20594eb0 | 1386 | iwl_free_traffic_mem(priv); |
d7c76f4c | 1387 | ieee80211_free_hw(priv->hw); |
34c1b7ba | 1388 | out: |
d0f76d68 EG |
1389 | op_mode = NULL; |
1390 | return op_mode; | |
b481de9c ZY |
1391 | } |
1392 | ||
d0f76d68 | 1393 | static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode) |
b481de9c | 1394 | { |
d0f76d68 EG |
1395 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); |
1396 | ||
e1623446 | 1397 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 1398 | |
67249625 | 1399 | iwl_dbgfs_unregister(priv); |
67249625 | 1400 | |
7a4e5281 | 1401 | iwl_testmode_cleanup(priv); |
09af1403 | 1402 | iwlagn_mac_unregister(priv); |
c4f55232 | 1403 | |
39b73fb1 WYG |
1404 | iwl_tt_exit(priv); |
1405 | ||
ae2c30bf | 1406 | /*This will stop the queues, move the device to low power state */ |
8f7ffbe2 | 1407 | priv->ucode_loaded = false; |
ae2c30bf | 1408 | iwl_trans_stop_device(trans(priv)); |
0359facc | 1409 | |
ab36eab2 | 1410 | iwl_eeprom_free(priv->shrd); |
b481de9c | 1411 | |
948c171c | 1412 | /*netif_stop_queue(dev); */ |
1ee158d8 | 1413 | flush_workqueue(priv->workqueue); |
948c171c | 1414 | |
ade4c649 | 1415 | /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes |
1ee158d8 | 1416 | * priv->workqueue... so we can't take down the workqueue |
b481de9c | 1417 | * until now... */ |
1ee158d8 JB |
1418 | destroy_workqueue(priv->workqueue); |
1419 | priv->workqueue = NULL; | |
20594eb0 | 1420 | iwl_free_traffic_mem(priv); |
b481de9c | 1421 | |
6ba87956 | 1422 | iwl_uninit_drv(priv); |
b481de9c | 1423 | |
77834543 | 1424 | dev_kfree_skb(priv->beacon_skb); |
b481de9c ZY |
1425 | |
1426 | ieee80211_free_hw(priv->hw); | |
1427 | } | |
1428 | ||
0e781842 JB |
1429 | static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode) |
1430 | { | |
1431 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
1432 | ||
1433 | if (!iwl_check_for_ct_kill(priv)) { | |
1434 | IWL_ERR(priv, "Restarting adapter queue is full\n"); | |
1435 | iwl_nic_error(op_mode); | |
1436 | } | |
1437 | } | |
1438 | ||
ecdb975c JB |
1439 | static void iwl_nic_config(struct iwl_op_mode *op_mode) |
1440 | { | |
1441 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
1442 | ||
1443 | cfg(priv)->lib->nic_config(priv); | |
1444 | } | |
1445 | ||
e755f882 JB |
1446 | static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, u8 ac) |
1447 | { | |
1448 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
1449 | ||
1450 | set_bit(ac, &priv->transport_queue_stop); | |
1451 | ieee80211_stop_queue(priv->hw, ac); | |
1452 | } | |
1453 | ||
1454 | static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, u8 ac) | |
1455 | { | |
1456 | struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); | |
1457 | ||
1458 | clear_bit(ac, &priv->transport_queue_stop); | |
1459 | ||
1460 | if (!priv->passive_no_rx) | |
1461 | ieee80211_wake_queue(priv->hw, ac); | |
1462 | } | |
1463 | ||
1464 | void iwlagn_lift_passive_no_rx(struct iwl_priv *priv) | |
1465 | { | |
1466 | int ac; | |
1467 | ||
1468 | if (!priv->passive_no_rx) | |
1469 | return; | |
1470 | ||
1471 | for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ac++) { | |
3251715d EG |
1472 | if (!test_bit(ac, &priv->transport_queue_stop)) { |
1473 | IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d"); | |
e755f882 | 1474 | ieee80211_wake_queue(priv->hw, ac); |
3251715d EG |
1475 | } else { |
1476 | IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d"); | |
1477 | } | |
e755f882 JB |
1478 | } |
1479 | ||
1480 | priv->passive_no_rx = false; | |
1481 | } | |
1482 | ||
d0f76d68 EG |
1483 | const struct iwl_op_mode_ops iwl_dvm_ops = { |
1484 | .start = iwl_op_mode_dvm_start, | |
1485 | .stop = iwl_op_mode_dvm_stop, | |
db70f290 | 1486 | .rx = iwl_rx_dispatch, |
02e38358 EG |
1487 | .queue_full = iwl_stop_sw_queue, |
1488 | .queue_not_full = iwl_wake_sw_queue, | |
7120d989 | 1489 | .hw_rf_kill = iwl_set_hw_rfkill_state, |
ed277c93 | 1490 | .free_skb = iwl_free_skb, |
bcb9321c | 1491 | .nic_error = iwl_nic_error, |
0e781842 | 1492 | .cmd_queue_full = iwl_cmd_queue_full, |
ecdb975c | 1493 | .nic_config = iwl_nic_config, |
d0f76d68 | 1494 | }; |
b481de9c ZY |
1495 | |
1496 | /***************************************************************************** | |
1497 | * | |
1498 | * driver and module entry point | |
1499 | * | |
1500 | *****************************************************************************/ | |
354928dd SG |
1501 | |
1502 | struct kmem_cache *iwl_tx_cmd_pool; | |
1503 | ||
5b9f8cd3 | 1504 | static int __init iwl_init(void) |
b481de9c ZY |
1505 | { |
1506 | ||
1507 | int ret; | |
c96c31e4 JP |
1508 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
1509 | pr_info(DRV_COPYRIGHT "\n"); | |
897e1cf2 | 1510 | |
354928dd SG |
1511 | iwl_tx_cmd_pool = kmem_cache_create("iwl_dev_cmd", |
1512 | sizeof(struct iwl_device_cmd), | |
1513 | sizeof(void *), 0, NULL); | |
1514 | if (!iwl_tx_cmd_pool) | |
1515 | return -ENOMEM; | |
1516 | ||
e227ceac | 1517 | ret = iwlagn_rate_control_register(); |
897e1cf2 | 1518 | if (ret) { |
c96c31e4 | 1519 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
354928dd | 1520 | goto error_rc_register; |
897e1cf2 RC |
1521 | } |
1522 | ||
48d1a211 | 1523 | ret = iwl_pci_register_driver(); |
48d1a211 | 1524 | if (ret) |
354928dd | 1525 | goto error_pci_register; |
b481de9c | 1526 | return ret; |
897e1cf2 | 1527 | |
354928dd | 1528 | error_pci_register: |
e227ceac | 1529 | iwlagn_rate_control_unregister(); |
354928dd SG |
1530 | error_rc_register: |
1531 | kmem_cache_destroy(iwl_tx_cmd_pool); | |
897e1cf2 | 1532 | return ret; |
b481de9c ZY |
1533 | } |
1534 | ||
5b9f8cd3 | 1535 | static void __exit iwl_exit(void) |
b481de9c | 1536 | { |
48d1a211 | 1537 | iwl_pci_unregister_driver(); |
e227ceac | 1538 | iwlagn_rate_control_unregister(); |
354928dd | 1539 | kmem_cache_destroy(iwl_tx_cmd_pool); |
b481de9c ZY |
1540 | } |
1541 | ||
5b9f8cd3 EG |
1542 | module_exit(iwl_exit); |
1543 | module_init(iwl_init); | |
a562a9dd RC |
1544 | |
1545 | #ifdef CONFIG_IWLWIFI_DEBUG | |
48f20d35 EG |
1546 | module_param_named(debug, iwlagn_mod_params.debug_level, uint, |
1547 | S_IRUGO | S_IWUSR); | |
a562a9dd RC |
1548 | MODULE_PARM_DESC(debug, "debug output mask"); |
1549 | #endif | |
1550 | ||
2b068618 WYG |
1551 | module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); |
1552 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); | |
7428994d JB |
1553 | module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO); |
1554 | MODULE_PARM_DESC(11n_disable, | |
1555 | "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX"); | |
2b068618 WYG |
1556 | module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, |
1557 | int, S_IRUGO); | |
1558 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); | |
2b068618 WYG |
1559 | module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); |
1560 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); | |
dd7a2509 | 1561 | |
48f20d35 EG |
1562 | module_param_named(ucode_alternative, |
1563 | iwlagn_mod_params.wanted_ucode_alternative, | |
1564 | int, S_IRUGO); | |
dd7a2509 JB |
1565 | MODULE_PARM_DESC(ucode_alternative, |
1566 | "specify ucode alternative to use from ucode file"); | |
bee008b7 | 1567 | |
48f20d35 EG |
1568 | module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling, |
1569 | int, S_IRUGO); | |
bee008b7 WYG |
1570 | MODULE_PARM_DESC(antenna_coupling, |
1571 | "specify antenna coupling in dB (defualt: 0 dB)"); | |
f37837c9 | 1572 | |
48f20d35 EG |
1573 | module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce, |
1574 | bool, S_IRUGO); | |
9f28ebc3 | 1575 | MODULE_PARM_DESC(bt_ch_inhibition, |
fee84f0d | 1576 | "Enable BT channel inhibition (default: enable)"); |
b7977ffa SG |
1577 | |
1578 | module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); | |
1579 | MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); | |
1580 | ||
1581 | module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); | |
1582 | MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); | |
b60eec9b | 1583 | |
9995ffe5 | 1584 | module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO); |
300d0834 | 1585 | MODULE_PARM_DESC(wd_disable, |
9995ffe5 WYG |
1586 | "Disable stuck queue watchdog timer 0=system default, " |
1587 | "1=disable, 2=enable (default: 0)"); | |
300d0834 | 1588 | |
b60eec9b WYG |
1589 | /* |
1590 | * set bt_coex_active to true, uCode will do kill/defer | |
1591 | * every time the priority line is asserted (BT is sending signals on the | |
1592 | * priority line in the PCIx). | |
1593 | * set bt_coex_active to false, uCode will ignore the BT activity and | |
1594 | * perform the normal operation | |
1595 | * | |
1596 | * User might experience transmit issue on some platform due to WiFi/BT | |
1597 | * co-exist problem. The possible behaviors are: | |
1598 | * Able to scan and finding all the available AP | |
1599 | * Not able to associate with any AP | |
1600 | * On those platforms, WiFi communication can be restored by set | |
1601 | * "bt_coex_active" module parameter to "false" | |
1602 | * | |
1603 | * default: bt_coex_active = true (BT_COEX_ENABLE) | |
1604 | */ | |
1605 | module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active, | |
1606 | bool, S_IRUGO); | |
1607 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); | |
6b0184c4 WYG |
1608 | |
1609 | module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO); | |
1610 | MODULE_PARM_DESC(led_mode, "0=system default, " | |
42602dd4 | 1611 | "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); |
3f1e5f4a | 1612 | |
0172b029 WYG |
1613 | module_param_named(power_save, iwlagn_mod_params.power_save, |
1614 | bool, S_IRUGO); | |
1615 | MODULE_PARM_DESC(power_save, | |
1616 | "enable WiFi power management (default: disable)"); | |
1617 | ||
f7538168 WYG |
1618 | module_param_named(power_level, iwlagn_mod_params.power_level, |
1619 | int, S_IRUGO); | |
1620 | MODULE_PARM_DESC(power_level, | |
1621 | "default power save level (range from 1 - 5, default: 1)"); | |
1622 | ||
dd5b6d0a WYG |
1623 | module_param_named(auto_agg, iwlagn_mod_params.auto_agg, |
1624 | bool, S_IRUGO); | |
1625 | MODULE_PARM_DESC(auto_agg, | |
1626 | "enable agg w/o check traffic load (default: enable)"); | |
1627 | ||
3f1e5f4a WYG |
1628 | /* |
1629 | * For now, keep using power level 1 instead of automatically | |
1630 | * adjusting ... | |
1631 | */ | |
1632 | module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust, | |
1633 | bool, S_IRUGO); | |
1634 | MODULE_PARM_DESC(no_sleep_autoadjust, | |
1635 | "don't automatically adjust sleep level " | |
1636 | "according to maximum network latency (default: true)"); |