Commit | Line | Data |
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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
901069c7 | 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
c96c31e4 JP |
30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
31 | ||
b481de9c ZY |
32 | #include <linux/kernel.h> |
33 | #include <linux/module.h> | |
b481de9c | 34 | #include <linux/init.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
b481de9c ZY |
36 | #include <linux/dma-mapping.h> |
37 | #include <linux/delay.h> | |
d43c36dc | 38 | #include <linux/sched.h> |
b481de9c ZY |
39 | #include <linux/skbuff.h> |
40 | #include <linux/netdevice.h> | |
41 | #include <linux/wireless.h> | |
42 | #include <linux/firmware.h> | |
b481de9c ZY |
43 | #include <linux/etherdevice.h> |
44 | #include <linux/if_arp.h> | |
45 | ||
b481de9c ZY |
46 | #include <net/mac80211.h> |
47 | ||
48 | #include <asm/div64.h> | |
49 | ||
6bc913bd | 50 | #include "iwl-eeprom.h" |
3e0d4cb1 | 51 | #include "iwl-dev.h" |
fee1247a | 52 | #include "iwl-core.h" |
3395f6e9 | 53 | #include "iwl-io.h" |
b481de9c | 54 | #include "iwl-helpers.h" |
6974e363 | 55 | #include "iwl-sta.h" |
0de76736 | 56 | #include "iwl-agn-calib.h" |
a1175124 | 57 | #include "iwl-agn.h" |
48d1a211 | 58 | #include "iwl-pci.h" |
c85eb619 | 59 | #include "iwl-trans.h" |
416e1438 | 60 | |
b481de9c ZY |
61 | /****************************************************************************** |
62 | * | |
63 | * module boiler plate | |
64 | * | |
65 | ******************************************************************************/ | |
66 | ||
b481de9c ZY |
67 | /* |
68 | * module name, copyright, version, etc. | |
b481de9c | 69 | */ |
d783b061 | 70 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
b481de9c | 71 | |
0a6857e7 | 72 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
73 | #define VD "d" |
74 | #else | |
75 | #define VD | |
76 | #endif | |
77 | ||
81963d68 | 78 | #define DRV_VERSION IWLWIFI_VERSION VD |
b481de9c | 79 | |
b481de9c ZY |
80 | |
81 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
82 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 83 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c ZY |
84 | MODULE_LICENSE("GPL"); |
85 | ||
bee008b7 | 86 | static int iwlagn_ant_coupling; |
f37837c9 | 87 | static bool iwlagn_bt_ch_announce = 1; |
bee008b7 | 88 | |
5b9f8cd3 | 89 | void iwl_update_chain_flags(struct iwl_priv *priv) |
5da4b55f | 90 | { |
246ed355 | 91 | struct iwl_rxon_context *ctx; |
5da4b55f | 92 | |
e3f10cea WYG |
93 | for_each_context(priv, ctx) { |
94 | iwlagn_set_rxon_chain(priv, ctx); | |
95 | if (ctx->active.rx_chain != ctx->staging.rx_chain) | |
96 | iwlagn_commit_rxon(priv, ctx); | |
246ed355 | 97 | } |
5da4b55f MA |
98 | } |
99 | ||
47ff65c4 DH |
100 | /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
101 | static void iwl_set_beacon_tim(struct iwl_priv *priv, | |
77834543 JB |
102 | struct iwl_tx_beacon_cmd *tx_beacon_cmd, |
103 | u8 *beacon, u32 frame_size) | |
47ff65c4 DH |
104 | { |
105 | u16 tim_idx; | |
106 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; | |
107 | ||
108 | /* | |
109 | * The index is relative to frame start but we start looking at the | |
110 | * variable-length part of the beacon. | |
111 | */ | |
112 | tim_idx = mgmt->u.beacon.variable - beacon; | |
113 | ||
114 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ | |
115 | while ((tim_idx < (frame_size - 2)) && | |
116 | (beacon[tim_idx] != WLAN_EID_TIM)) | |
117 | tim_idx += beacon[tim_idx+1] + 2; | |
118 | ||
119 | /* If TIM field was found, set variables */ | |
120 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { | |
121 | tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); | |
122 | tx_beacon_cmd->tim_size = beacon[tim_idx+1]; | |
123 | } else | |
124 | IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); | |
125 | } | |
126 | ||
8a98d49e | 127 | int iwlagn_send_beacon_cmd(struct iwl_priv *priv) |
4bf64efd TW |
128 | { |
129 | struct iwl_tx_beacon_cmd *tx_beacon_cmd; | |
8a98d49e JB |
130 | struct iwl_host_cmd cmd = { |
131 | .id = REPLY_TX_BEACON, | |
e419d62d | 132 | .flags = CMD_SYNC, |
8a98d49e | 133 | }; |
0b5b3ff1 | 134 | struct ieee80211_tx_info *info; |
47ff65c4 DH |
135 | u32 frame_size; |
136 | u32 rate_flags; | |
137 | u32 rate; | |
8a98d49e | 138 | |
47ff65c4 DH |
139 | /* |
140 | * We have to set up the TX command, the TX Beacon command, and the | |
141 | * beacon contents. | |
142 | */ | |
4bf64efd | 143 | |
76d04815 JB |
144 | lockdep_assert_held(&priv->mutex); |
145 | ||
146 | if (!priv->beacon_ctx) { | |
147 | IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); | |
950094cb | 148 | return 0; |
76d04815 JB |
149 | } |
150 | ||
8a98d49e JB |
151 | if (WARN_ON(!priv->beacon_skb)) |
152 | return -EINVAL; | |
153 | ||
4ce7cc2b JB |
154 | /* Allocate beacon command */ |
155 | if (!priv->beacon_cmd) | |
156 | priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); | |
157 | tx_beacon_cmd = priv->beacon_cmd; | |
8a98d49e JB |
158 | if (!tx_beacon_cmd) |
159 | return -ENOMEM; | |
160 | ||
161 | frame_size = priv->beacon_skb->len; | |
4bf64efd | 162 | |
47ff65c4 | 163 | /* Set up TX command fields */ |
4bf64efd | 164 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
76d04815 | 165 | tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; |
47ff65c4 DH |
166 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
167 | tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | | |
168 | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; | |
4bf64efd | 169 | |
47ff65c4 | 170 | /* Set up TX beacon command fields */ |
4ce7cc2b | 171 | iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, |
77834543 | 172 | frame_size); |
4bf64efd | 173 | |
47ff65c4 | 174 | /* Set up packet rate and flags */ |
0b5b3ff1 JB |
175 | info = IEEE80211_SKB_CB(priv->beacon_skb); |
176 | ||
177 | /* | |
178 | * Let's set up the rate at least somewhat correctly; | |
179 | * it will currently not actually be used by the uCode, | |
180 | * it uses the broadcast station's rate instead. | |
181 | */ | |
182 | if (info->control.rates[0].idx < 0 || | |
183 | info->control.rates[0].flags & IEEE80211_TX_RC_MCS) | |
184 | rate = 0; | |
185 | else | |
186 | rate = info->control.rates[0].idx; | |
187 | ||
0e1654fa JB |
188 | priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, |
189 | priv->hw_params.valid_tx_ant); | |
47ff65c4 | 190 | rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); |
0b5b3ff1 JB |
191 | |
192 | /* In mac80211, rates for 5 GHz start at 0 */ | |
193 | if (info->band == IEEE80211_BAND_5GHZ) | |
194 | rate += IWL_FIRST_OFDM_RATE; | |
195 | else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) | |
47ff65c4 | 196 | rate_flags |= RATE_MCS_CCK_MSK; |
0b5b3ff1 JB |
197 | |
198 | tx_beacon_cmd->tx.rate_n_flags = | |
199 | iwl_hw_set_rate_n_flags(rate, rate_flags); | |
4bf64efd | 200 | |
8a98d49e | 201 | /* Submit command */ |
4ce7cc2b | 202 | cmd.len[0] = sizeof(*tx_beacon_cmd); |
3fa50738 | 203 | cmd.data[0] = tx_beacon_cmd; |
4ce7cc2b JB |
204 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
205 | cmd.len[1] = frame_size; | |
206 | cmd.data[1] = priv->beacon_skb->data; | |
207 | cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; | |
7aaa1d79 | 208 | |
bdfbf092 | 209 | return trans_send_cmd(priv, &cmd); |
a8e74e27 SO |
210 | } |
211 | ||
5b9f8cd3 | 212 | static void iwl_bg_beacon_update(struct work_struct *work) |
b481de9c | 213 | { |
c79dd5b5 TW |
214 | struct iwl_priv *priv = |
215 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
216 | struct sk_buff *beacon; |
217 | ||
76d04815 JB |
218 | mutex_lock(&priv->mutex); |
219 | if (!priv->beacon_ctx) { | |
220 | IWL_ERR(priv, "updating beacon w/o beacon context!\n"); | |
221 | goto out; | |
222 | } | |
b481de9c | 223 | |
60744f62 JB |
224 | if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { |
225 | /* | |
226 | * The ucode will send beacon notifications even in | |
227 | * IBSS mode, but we don't want to process them. But | |
228 | * we need to defer the type check to here due to | |
229 | * requiring locking around the beacon_ctx access. | |
230 | */ | |
231 | goto out; | |
232 | } | |
233 | ||
76d04815 JB |
234 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
235 | beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); | |
b481de9c | 236 | if (!beacon) { |
77834543 | 237 | IWL_ERR(priv, "update beacon failed -- keeping old\n"); |
76d04815 | 238 | goto out; |
b481de9c ZY |
239 | } |
240 | ||
b481de9c | 241 | /* new beacon skb is allocated every time; dispose previous.*/ |
77834543 | 242 | dev_kfree_skb(priv->beacon_skb); |
b481de9c | 243 | |
12e934dc | 244 | priv->beacon_skb = beacon; |
b481de9c | 245 | |
2295c66b | 246 | iwlagn_send_beacon_cmd(priv); |
76d04815 JB |
247 | out: |
248 | mutex_unlock(&priv->mutex); | |
b481de9c ZY |
249 | } |
250 | ||
fbba9410 WYG |
251 | static void iwl_bg_bt_runtime_config(struct work_struct *work) |
252 | { | |
253 | struct iwl_priv *priv = | |
254 | container_of(work, struct iwl_priv, bt_runtime_config); | |
255 | ||
256 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
257 | return; | |
258 | ||
259 | /* dont send host command if rf-kill is on */ | |
260 | if (!iwl_is_ready_rf(priv)) | |
261 | return; | |
e55b517c | 262 | iwlagn_send_advance_bt_config(priv); |
fbba9410 WYG |
263 | } |
264 | ||
bee008b7 WYG |
265 | static void iwl_bg_bt_full_concurrency(struct work_struct *work) |
266 | { | |
267 | struct iwl_priv *priv = | |
268 | container_of(work, struct iwl_priv, bt_full_concurrency); | |
246ed355 | 269 | struct iwl_rxon_context *ctx; |
bee008b7 | 270 | |
dc1a4068 SG |
271 | mutex_lock(&priv->mutex); |
272 | ||
bee008b7 | 273 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
dc1a4068 | 274 | goto out; |
bee008b7 WYG |
275 | |
276 | /* dont send host command if rf-kill is on */ | |
277 | if (!iwl_is_ready_rf(priv)) | |
dc1a4068 | 278 | goto out; |
bee008b7 WYG |
279 | |
280 | IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", | |
281 | priv->bt_full_concurrent ? | |
282 | "full concurrency" : "3-wire"); | |
283 | ||
284 | /* | |
285 | * LQ & RXON updated cmds must be sent before BT Config cmd | |
286 | * to avoid 3-wire collisions | |
287 | */ | |
246ed355 | 288 | for_each_context(priv, ctx) { |
e3f10cea | 289 | iwlagn_set_rxon_chain(priv, ctx); |
805a3b81 | 290 | iwlagn_commit_rxon(priv, ctx); |
246ed355 | 291 | } |
bee008b7 | 292 | |
e55b517c | 293 | iwlagn_send_advance_bt_config(priv); |
dc1a4068 SG |
294 | out: |
295 | mutex_unlock(&priv->mutex); | |
bee008b7 WYG |
296 | } |
297 | ||
4e39317d | 298 | /** |
5b9f8cd3 | 299 | * iwl_bg_statistics_periodic - Timer callback to queue statistics |
4e39317d EG |
300 | * |
301 | * This callback is provided in order to send a statistics request. | |
302 | * | |
303 | * This timer function is continually reset to execute within | |
304 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
305 | * was received. We need to ensure we receive the statistics in order | |
306 | * to update the temperature used for calibrating the TXPOWER. | |
307 | */ | |
5b9f8cd3 | 308 | static void iwl_bg_statistics_periodic(unsigned long data) |
4e39317d EG |
309 | { |
310 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
311 | ||
312 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
313 | return; | |
314 | ||
61780ee3 MA |
315 | /* dont send host command if rf-kill is on */ |
316 | if (!iwl_is_ready_rf(priv)) | |
317 | return; | |
318 | ||
ef8d5529 | 319 | iwl_send_statistics_request(priv, CMD_ASYNC, false); |
4e39317d EG |
320 | } |
321 | ||
a9e1cb6a WYG |
322 | |
323 | static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, | |
324 | u32 start_idx, u32 num_events, | |
325 | u32 mode) | |
326 | { | |
327 | u32 i; | |
328 | u32 ptr; /* SRAM byte address of log data */ | |
329 | u32 ev, time, data; /* event log data */ | |
330 | unsigned long reg_flags; | |
331 | ||
332 | if (mode == 0) | |
333 | ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); | |
334 | else | |
335 | ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); | |
336 | ||
337 | /* Make sure device is powered up for SRAM reads */ | |
338 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
339 | if (iwl_grab_nic_access(priv)) { | |
340 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
341 | return; | |
342 | } | |
343 | ||
344 | /* Set starting address; reads will auto-increment */ | |
02a7fa00 | 345 | iwl_write32(priv, HBUS_TARG_MEM_RADDR, ptr); |
a9e1cb6a WYG |
346 | rmb(); |
347 | ||
348 | /* | |
349 | * "time" is actually "data" for mode 0 (no timestamp). | |
350 | * place event id # at far right for easier visual parsing. | |
351 | */ | |
352 | for (i = 0; i < num_events; i++) { | |
02a7fa00 JB |
353 | ev = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
354 | time = iwl_read32(priv, HBUS_TARG_MEM_RDAT); | |
a9e1cb6a WYG |
355 | if (mode == 0) { |
356 | trace_iwlwifi_dev_ucode_cont_event(priv, | |
357 | 0, time, ev); | |
358 | } else { | |
02a7fa00 | 359 | data = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
a9e1cb6a WYG |
360 | trace_iwlwifi_dev_ucode_cont_event(priv, |
361 | time, data, ev); | |
362 | } | |
363 | } | |
364 | /* Allow device to power down */ | |
365 | iwl_release_nic_access(priv); | |
366 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
367 | } | |
368 | ||
875295f1 | 369 | static void iwl_continuous_event_trace(struct iwl_priv *priv) |
a9e1cb6a WYG |
370 | { |
371 | u32 capacity; /* event log capacity in # entries */ | |
372 | u32 base; /* SRAM byte address of event log header */ | |
373 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
374 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
375 | u32 next_entry; /* index of next entry to be written by uCode */ | |
376 | ||
d7d5783c | 377 | base = priv->device_pointers.error_event_table; |
a9e1cb6a WYG |
378 | if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
379 | capacity = iwl_read_targ_mem(priv, base); | |
380 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
381 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
382 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
383 | } else | |
384 | return; | |
385 | ||
386 | if (num_wraps == priv->event_log.num_wraps) { | |
387 | iwl_print_cont_event_trace(priv, | |
388 | base, priv->event_log.next_entry, | |
389 | next_entry - priv->event_log.next_entry, | |
390 | mode); | |
391 | priv->event_log.non_wraps_count++; | |
392 | } else { | |
393 | if ((num_wraps - priv->event_log.num_wraps) > 1) | |
394 | priv->event_log.wraps_more_count++; | |
395 | else | |
396 | priv->event_log.wraps_once_count++; | |
397 | trace_iwlwifi_dev_ucode_wrap_event(priv, | |
398 | num_wraps - priv->event_log.num_wraps, | |
399 | next_entry, priv->event_log.next_entry); | |
400 | if (next_entry < priv->event_log.next_entry) { | |
401 | iwl_print_cont_event_trace(priv, base, | |
402 | priv->event_log.next_entry, | |
403 | capacity - priv->event_log.next_entry, | |
404 | mode); | |
405 | ||
406 | iwl_print_cont_event_trace(priv, base, 0, | |
407 | next_entry, mode); | |
408 | } else { | |
409 | iwl_print_cont_event_trace(priv, base, | |
410 | next_entry, capacity - next_entry, | |
411 | mode); | |
412 | ||
413 | iwl_print_cont_event_trace(priv, base, 0, | |
414 | next_entry, mode); | |
415 | } | |
416 | } | |
417 | priv->event_log.num_wraps = num_wraps; | |
418 | priv->event_log.next_entry = next_entry; | |
419 | } | |
420 | ||
421 | /** | |
422 | * iwl_bg_ucode_trace - Timer callback to log ucode event | |
423 | * | |
424 | * The timer is continually set to execute every | |
425 | * UCODE_TRACE_PERIOD milliseconds after the last timer expired | |
426 | * this function is to perform continuous uCode event logging operation | |
427 | * if enabled | |
428 | */ | |
429 | static void iwl_bg_ucode_trace(unsigned long data) | |
430 | { | |
431 | struct iwl_priv *priv = (struct iwl_priv *)data; | |
432 | ||
433 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
434 | return; | |
435 | ||
436 | if (priv->event_log.ucode_trace) { | |
437 | iwl_continuous_event_trace(priv); | |
438 | /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ | |
439 | mod_timer(&priv->ucode_trace, | |
440 | jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); | |
441 | } | |
442 | } | |
443 | ||
65550636 WYG |
444 | static void iwl_bg_tx_flush(struct work_struct *work) |
445 | { | |
446 | struct iwl_priv *priv = | |
447 | container_of(work, struct iwl_priv, tx_flush); | |
448 | ||
449 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
450 | return; | |
451 | ||
452 | /* do nothing if rf-kill is on */ | |
453 | if (!iwl_is_ready_rf(priv)) | |
454 | return; | |
455 | ||
c68744fb WYG |
456 | IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); |
457 | iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); | |
65550636 WYG |
458 | } |
459 | ||
b481de9c | 460 | /** |
a55360e4 | 461 | * iwl_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
462 | * |
463 | * Uses the priv->rx_handlers callback function array to invoke | |
464 | * the appropriate handlers, including command responses, | |
465 | * frame-received notifications, and other notifications. | |
466 | */ | |
f945f108 | 467 | static void iwl_rx_handle(struct iwl_priv *priv) |
b481de9c | 468 | { |
a55360e4 | 469 | struct iwl_rx_mem_buffer *rxb; |
db11d634 | 470 | struct iwl_rx_packet *pkt; |
a55360e4 | 471 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
472 | u32 r, i; |
473 | int reclaim; | |
474 | unsigned long flags; | |
5c0eef96 | 475 | u8 fill_rx = 0; |
d68ab680 | 476 | u32 count = 8; |
4752c93c | 477 | int total_empty; |
b481de9c | 478 | |
6440adb5 CB |
479 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
480 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8d86422a | 481 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
482 | i = rxq->read; |
483 | ||
484 | /* Rx interrupt, but nothing sent from uCode */ | |
485 | if (i == r) | |
e1623446 | 486 | IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); |
b481de9c | 487 | |
4752c93c | 488 | /* calculate total frames need to be restock after handling RX */ |
7300515d | 489 | total_empty = r - rxq->write_actual; |
4752c93c MA |
490 | if (total_empty < 0) |
491 | total_empty += RX_QUEUE_SIZE; | |
492 | ||
493 | if (total_empty > (RX_QUEUE_SIZE / 2)) | |
5c0eef96 MA |
494 | fill_rx = 1; |
495 | ||
b481de9c | 496 | while (i != r) { |
f4989d9b JB |
497 | int len; |
498 | ||
b481de9c ZY |
499 | rxb = rxq->queue[i]; |
500 | ||
9fbab516 | 501 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
502 | * then a bug has been introduced in the queue refilling |
503 | * routines -- catch it here */ | |
3e41ace5 JB |
504 | if (WARN_ON(rxb == NULL)) { |
505 | i = (i + 1) & RX_QUEUE_MASK; | |
506 | continue; | |
507 | } | |
b481de9c ZY |
508 | |
509 | rxq->queue[i] = NULL; | |
510 | ||
795414db | 511 | dma_unmap_page(priv->bus.dev, rxb->page_dma, |
2f301227 | 512 | PAGE_SIZE << priv->hw_params.rx_page_order, |
795414db | 513 | DMA_FROM_DEVICE); |
2f301227 | 514 | pkt = rxb_addr(rxb); |
b481de9c | 515 | |
f4989d9b JB |
516 | len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; |
517 | len += sizeof(u32); /* account for status word */ | |
518 | trace_iwlwifi_dev_rx(priv, pkt, len); | |
be1a71a1 | 519 | |
b481de9c ZY |
520 | /* Reclaim a command buffer only if this packet is a response |
521 | * to a (driver-originated) command. | |
522 | * If the packet (e.g. Rx frame) originated from uCode, | |
523 | * there is no command buffer to reclaim. | |
524 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
525 | * but apparently a few don't get set; catch them here. */ | |
526 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
527 | (pkt->hdr.cmd != REPLY_RX_PHY_CMD) && | |
857485c0 | 528 | (pkt->hdr.cmd != REPLY_RX) && |
7dddaf1a | 529 | (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) && |
cfe01709 | 530 | (pkt->hdr.cmd != REPLY_COMPRESSED_BA) && |
b481de9c ZY |
531 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
532 | (pkt->hdr.cmd != REPLY_TX); | |
533 | ||
7194207c JB |
534 | /* |
535 | * Do the notification wait before RX handlers so | |
536 | * even if the RX handler consumes the RXB we have | |
537 | * access to it in the notification wait entry. | |
538 | */ | |
539 | if (!list_empty(&priv->_agn.notif_waits)) { | |
540 | struct iwl_notification_wait *w; | |
541 | ||
542 | spin_lock(&priv->_agn.notif_wait_lock); | |
543 | list_for_each_entry(w, &priv->_agn.notif_waits, list) { | |
544 | if (w->cmd == pkt->hdr.cmd) { | |
545 | w->triggered = true; | |
546 | if (w->fn) | |
09f18afe | 547 | w->fn(priv, pkt, w->fn_data); |
7194207c JB |
548 | } |
549 | } | |
550 | spin_unlock(&priv->_agn.notif_wait_lock); | |
551 | ||
552 | wake_up_all(&priv->_agn.notif_waitq); | |
553 | } | |
4613e72d CK |
554 | if (priv->pre_rx_handler) |
555 | priv->pre_rx_handler(priv, rxb); | |
7194207c | 556 | |
b481de9c ZY |
557 | /* Based on type of command response or notification, |
558 | * handle those that need handling via function in | |
5b9f8cd3 | 559 | * rx_handlers table. See iwl_setup_rx_handlers() */ |
b481de9c | 560 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
e1623446 | 561 | IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, |
f3d67999 | 562 | i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
a83b9141 | 563 | priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; |
29b1b268 | 564 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
b481de9c ZY |
565 | } else { |
566 | /* No handling needed */ | |
e1623446 | 567 | IWL_DEBUG_RX(priv, |
b481de9c ZY |
568 | "r %d i %d No handler needed for %s, 0x%02x\n", |
569 | r, i, get_cmd_string(pkt->hdr.cmd), | |
570 | pkt->hdr.cmd); | |
571 | } | |
572 | ||
29b1b268 ZY |
573 | /* |
574 | * XXX: After here, we should always check rxb->page | |
575 | * against NULL before touching it or its virtual | |
576 | * memory (pkt). Because some rx_handler might have | |
577 | * already taken or freed the pages. | |
578 | */ | |
579 | ||
b481de9c | 580 | if (reclaim) { |
2f301227 | 581 | /* Invoke any callbacks, transfer the buffer to caller, |
e419d62d | 582 | * and fire off the (possibly) blocking |
bdfbf092 | 583 | * trans_send_cmd() |
b481de9c | 584 | * as we reclaim the driver command queue */ |
29b1b268 | 585 | if (rxb->page) |
17b88929 | 586 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c | 587 | else |
39aadf8c | 588 | IWL_WARN(priv, "Claim null rxb?\n"); |
b481de9c ZY |
589 | } |
590 | ||
7300515d ZY |
591 | /* Reuse the page if possible. For notification packets and |
592 | * SKBs that fail to Rx correctly, add them back into the | |
593 | * rx_free list for reuse later. */ | |
594 | spin_lock_irqsave(&rxq->lock, flags); | |
2f301227 | 595 | if (rxb->page != NULL) { |
795414db | 596 | rxb->page_dma = dma_map_page(priv->bus.dev, rxb->page, |
7300515d | 597 | 0, PAGE_SIZE << priv->hw_params.rx_page_order, |
795414db | 598 | DMA_FROM_DEVICE); |
7300515d ZY |
599 | list_add_tail(&rxb->list, &rxq->rx_free); |
600 | rxq->free_count++; | |
601 | } else | |
602 | list_add_tail(&rxb->list, &rxq->rx_used); | |
b481de9c | 603 | |
b481de9c | 604 | spin_unlock_irqrestore(&rxq->lock, flags); |
7300515d | 605 | |
b481de9c | 606 | i = (i + 1) & RX_QUEUE_MASK; |
5c0eef96 MA |
607 | /* If there are a lot of unused frames, |
608 | * restock the Rx queue so ucode wont assert. */ | |
609 | if (fill_rx) { | |
610 | count++; | |
611 | if (count >= 8) { | |
7300515d | 612 | rxq->read = i; |
54b81550 | 613 | iwlagn_rx_replenish_now(priv); |
5c0eef96 MA |
614 | count = 0; |
615 | } | |
616 | } | |
b481de9c ZY |
617 | } |
618 | ||
619 | /* Backtrack one entry */ | |
7300515d | 620 | rxq->read = i; |
4752c93c | 621 | if (fill_rx) |
54b81550 | 622 | iwlagn_rx_replenish_now(priv); |
4752c93c | 623 | else |
54b81550 | 624 | iwlagn_rx_queue_restock(priv); |
a55360e4 | 625 | } |
a55360e4 | 626 | |
ef850d7c MA |
627 | /* tasklet for iwlagn interrupt */ |
628 | static void iwl_irq_tasklet(struct iwl_priv *priv) | |
629 | { | |
630 | u32 inta = 0; | |
631 | u32 handled = 0; | |
632 | unsigned long flags; | |
8756990f | 633 | u32 i; |
ef850d7c MA |
634 | #ifdef CONFIG_IWLWIFI_DEBUG |
635 | u32 inta_mask; | |
636 | #endif | |
637 | ||
638 | spin_lock_irqsave(&priv->lock, flags); | |
639 | ||
640 | /* Ack/clear/reset pending uCode interrupts. | |
641 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
642 | */ | |
48a6be6a SZ |
643 | /* There is a hardware bug in the interrupt mask function that some |
644 | * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if | |
645 | * they are disabled in the CSR_INT_MASK register. Furthermore the | |
646 | * ICT interrupt handling mechanism has another bug that might cause | |
647 | * these unmasked interrupts fail to be detected. We workaround the | |
648 | * hardware bugs here by ACKing all the possible interrupts so that | |
649 | * interrupt coalescing can still be achieved. | |
650 | */ | |
4a35ecf8 | 651 | iwl_write32(priv, CSR_INT, priv->_agn.inta | ~priv->inta_mask); |
ef850d7c | 652 | |
a4c8b2a6 | 653 | inta = priv->_agn.inta; |
ef850d7c MA |
654 | |
655 | #ifdef CONFIG_IWLWIFI_DEBUG | |
3d816c77 | 656 | if (iwl_get_debug_level(priv) & IWL_DL_ISR) { |
ef850d7c MA |
657 | /* just for debug */ |
658 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
659 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ", | |
660 | inta, inta_mask); | |
661 | } | |
662 | #endif | |
2f301227 ZY |
663 | |
664 | spin_unlock_irqrestore(&priv->lock, flags); | |
665 | ||
a4c8b2a6 JB |
666 | /* saved interrupt in inta variable now we can reset priv->_agn.inta */ |
667 | priv->_agn.inta = 0; | |
ef850d7c MA |
668 | |
669 | /* Now service all interrupt bits discovered above. */ | |
670 | if (inta & CSR_INT_BIT_HW_ERR) { | |
58dba728 | 671 | IWL_ERR(priv, "Hardware error detected. Restarting.\n"); |
ef850d7c MA |
672 | |
673 | /* Tell the device to stop sending interrupts */ | |
674 | iwl_disable_interrupts(priv); | |
675 | ||
676 | priv->isr_stats.hw++; | |
677 | iwl_irq_handle_error(priv); | |
678 | ||
679 | handled |= CSR_INT_BIT_HW_ERR; | |
680 | ||
ef850d7c MA |
681 | return; |
682 | } | |
683 | ||
684 | #ifdef CONFIG_IWLWIFI_DEBUG | |
3d816c77 | 685 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
ef850d7c MA |
686 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
687 | if (inta & CSR_INT_BIT_SCD) { | |
688 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " | |
689 | "the frame/frames.\n"); | |
690 | priv->isr_stats.sch++; | |
691 | } | |
692 | ||
693 | /* Alive notification via Rx interrupt will do the real work */ | |
694 | if (inta & CSR_INT_BIT_ALIVE) { | |
695 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); | |
696 | priv->isr_stats.alive++; | |
697 | } | |
698 | } | |
699 | #endif | |
700 | /* Safely ignore these bits for debug checks below */ | |
701 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); | |
702 | ||
703 | /* HW RF KILL switch toggled */ | |
704 | if (inta & CSR_INT_BIT_RF_KILL) { | |
705 | int hw_rf_kill = 0; | |
706 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & | |
707 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) | |
708 | hw_rf_kill = 1; | |
709 | ||
4c423a2b | 710 | IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", |
ef850d7c MA |
711 | hw_rf_kill ? "disable radio" : "enable radio"); |
712 | ||
713 | priv->isr_stats.rfkill++; | |
714 | ||
715 | /* driver only loads ucode once setting the interface up. | |
716 | * the driver allows loading the ucode even if the radio | |
717 | * is killed. Hence update the killswitch state here. The | |
718 | * rfkill handler will care about restarting if needed. | |
719 | */ | |
720 | if (!test_bit(STATUS_ALIVE, &priv->status)) { | |
721 | if (hw_rf_kill) | |
722 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
723 | else | |
724 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a60e77e5 | 725 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); |
ef850d7c MA |
726 | } |
727 | ||
728 | handled |= CSR_INT_BIT_RF_KILL; | |
729 | } | |
730 | ||
731 | /* Chip got too hot and stopped itself */ | |
732 | if (inta & CSR_INT_BIT_CT_KILL) { | |
733 | IWL_ERR(priv, "Microcode CT kill error detected.\n"); | |
734 | priv->isr_stats.ctkill++; | |
735 | handled |= CSR_INT_BIT_CT_KILL; | |
736 | } | |
737 | ||
738 | /* Error detected by uCode */ | |
739 | if (inta & CSR_INT_BIT_SW_ERR) { | |
740 | IWL_ERR(priv, "Microcode SW error detected. " | |
741 | " Restarting 0x%X.\n", inta); | |
742 | priv->isr_stats.sw++; | |
ef850d7c MA |
743 | iwl_irq_handle_error(priv); |
744 | handled |= CSR_INT_BIT_SW_ERR; | |
745 | } | |
746 | ||
747 | /* uCode wakes up after power-down sleep */ | |
748 | if (inta & CSR_INT_BIT_WAKEUP) { | |
749 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); | |
750 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); | |
8756990f BC |
751 | for (i = 0; i < priv->hw_params.max_txq_num; i++) |
752 | iwl_txq_update_write_ptr(priv, &priv->txq[i]); | |
ef850d7c MA |
753 | |
754 | priv->isr_stats.wakeup++; | |
755 | ||
756 | handled |= CSR_INT_BIT_WAKEUP; | |
757 | } | |
758 | ||
759 | /* All uCode command responses, including Tx command responses, | |
760 | * Rx "responses" (frame-received notification), and other | |
761 | * notifications from uCode come through here*/ | |
40cefda9 MA |
762 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX | |
763 | CSR_INT_BIT_RX_PERIODIC)) { | |
ef850d7c | 764 | IWL_DEBUG_ISR(priv, "Rx interrupt\n"); |
40cefda9 MA |
765 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
766 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); | |
767 | iwl_write32(priv, CSR_FH_INT_STATUS, | |
f7d046f9 | 768 | CSR_FH_INT_RX_MASK); |
40cefda9 MA |
769 | } |
770 | if (inta & CSR_INT_BIT_RX_PERIODIC) { | |
771 | handled |= CSR_INT_BIT_RX_PERIODIC; | |
772 | iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC); | |
773 | } | |
774 | /* Sending RX interrupt require many steps to be done in the | |
775 | * the device: | |
776 | * 1- write interrupt to current index in ICT table. | |
777 | * 2- dma RX frame. | |
778 | * 3- update RX shared data to indicate last write index. | |
779 | * 4- send interrupt. | |
780 | * This could lead to RX race, driver could receive RX interrupt | |
74ba67ed BC |
781 | * but the shared data changes does not reflect this; |
782 | * periodic interrupt will detect any dangling Rx activity. | |
40cefda9 | 783 | */ |
74ba67ed BC |
784 | |
785 | /* Disable periodic interrupt; we use it as just a one-shot. */ | |
786 | iwl_write8(priv, CSR_INT_PERIODIC_REG, | |
40cefda9 | 787 | CSR_INT_PERIODIC_DIS); |
ef850d7c | 788 | iwl_rx_handle(priv); |
74ba67ed BC |
789 | |
790 | /* | |
791 | * Enable periodic interrupt in 8 msec only if we received | |
792 | * real RX interrupt (instead of just periodic int), to catch | |
793 | * any dangling Rx interrupt. If it was just the periodic | |
794 | * interrupt, there was no dangling Rx activity, and no need | |
795 | * to extend the periodic interrupt; one-shot is enough. | |
796 | */ | |
40cefda9 | 797 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) |
74ba67ed | 798 | iwl_write8(priv, CSR_INT_PERIODIC_REG, |
40cefda9 MA |
799 | CSR_INT_PERIODIC_ENA); |
800 | ||
ef850d7c | 801 | priv->isr_stats.rx++; |
ef850d7c MA |
802 | } |
803 | ||
c72cd19f | 804 | /* This "Tx" DMA channel is used only for loading uCode */ |
ef850d7c | 805 | if (inta & CSR_INT_BIT_FH_TX) { |
f7d046f9 | 806 | iwl_write32(priv, CSR_FH_INT_STATUS, CSR_FH_INT_TX_MASK); |
c72cd19f | 807 | IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); |
ef850d7c MA |
808 | priv->isr_stats.tx++; |
809 | handled |= CSR_INT_BIT_FH_TX; | |
c72cd19f | 810 | /* Wake up uCode load routine, now that load is complete */ |
ef850d7c MA |
811 | priv->ucode_write_complete = 1; |
812 | wake_up_interruptible(&priv->wait_command_queue); | |
813 | } | |
814 | ||
815 | if (inta & ~handled) { | |
816 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); | |
817 | priv->isr_stats.unhandled++; | |
818 | } | |
819 | ||
40cefda9 | 820 | if (inta & ~(priv->inta_mask)) { |
ef850d7c | 821 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
40cefda9 | 822 | inta & ~priv->inta_mask); |
ef850d7c MA |
823 | } |
824 | ||
ef850d7c | 825 | /* Re-enable all interrupts */ |
62e45c14 | 826 | /* only Re-enable if disabled by irq */ |
ef850d7c MA |
827 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) |
828 | iwl_enable_interrupts(priv); | |
3dd823e6 DF |
829 | /* Re-enable RF_KILL if it occurred */ |
830 | else if (handled & CSR_INT_BIT_RF_KILL) | |
831 | iwl_enable_rfkill_int(priv); | |
ef850d7c MA |
832 | } |
833 | ||
7d47618a EG |
834 | /***************************************************************************** |
835 | * | |
836 | * sysfs attributes | |
837 | * | |
838 | *****************************************************************************/ | |
839 | ||
840 | #ifdef CONFIG_IWLWIFI_DEBUG | |
841 | ||
842 | /* | |
843 | * The following adds a new attribute to the sysfs representation | |
844 | * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) | |
845 | * used for controlling the debug level. | |
846 | * | |
847 | * See the level definitions in iwl for details. | |
848 | * | |
849 | * The debug_level being managed using sysfs below is a per device debug | |
850 | * level that is used instead of the global debug level if it (the per | |
851 | * device debug level) is set. | |
852 | */ | |
853 | static ssize_t show_debug_level(struct device *d, | |
854 | struct device_attribute *attr, char *buf) | |
855 | { | |
856 | struct iwl_priv *priv = dev_get_drvdata(d); | |
857 | return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); | |
858 | } | |
859 | static ssize_t store_debug_level(struct device *d, | |
860 | struct device_attribute *attr, | |
861 | const char *buf, size_t count) | |
862 | { | |
863 | struct iwl_priv *priv = dev_get_drvdata(d); | |
864 | unsigned long val; | |
865 | int ret; | |
866 | ||
867 | ret = strict_strtoul(buf, 0, &val); | |
868 | if (ret) | |
869 | IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); | |
870 | else { | |
871 | priv->debug_level = val; | |
872 | if (iwl_alloc_traffic_mem(priv)) | |
873 | IWL_ERR(priv, | |
874 | "Not enough memory to generate traffic log\n"); | |
875 | } | |
876 | return strnlen(buf, count); | |
877 | } | |
878 | ||
879 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, | |
880 | show_debug_level, store_debug_level); | |
881 | ||
882 | ||
883 | #endif /* CONFIG_IWLWIFI_DEBUG */ | |
884 | ||
885 | ||
886 | static ssize_t show_temperature(struct device *d, | |
887 | struct device_attribute *attr, char *buf) | |
888 | { | |
889 | struct iwl_priv *priv = dev_get_drvdata(d); | |
890 | ||
891 | if (!iwl_is_alive(priv)) | |
892 | return -EAGAIN; | |
893 | ||
894 | return sprintf(buf, "%d\n", priv->temperature); | |
895 | } | |
896 | ||
897 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
898 | ||
899 | static ssize_t show_tx_power(struct device *d, | |
900 | struct device_attribute *attr, char *buf) | |
901 | { | |
902 | struct iwl_priv *priv = dev_get_drvdata(d); | |
903 | ||
904 | if (!iwl_is_ready_rf(priv)) | |
905 | return sprintf(buf, "off\n"); | |
906 | else | |
907 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); | |
908 | } | |
909 | ||
910 | static ssize_t store_tx_power(struct device *d, | |
911 | struct device_attribute *attr, | |
912 | const char *buf, size_t count) | |
913 | { | |
914 | struct iwl_priv *priv = dev_get_drvdata(d); | |
915 | unsigned long val; | |
916 | int ret; | |
917 | ||
918 | ret = strict_strtoul(buf, 10, &val); | |
919 | if (ret) | |
920 | IWL_INFO(priv, "%s is not in decimal form.\n", buf); | |
921 | else { | |
922 | ret = iwl_set_tx_power(priv, val, false); | |
923 | if (ret) | |
924 | IWL_ERR(priv, "failed setting tx power (0x%d).\n", | |
925 | ret); | |
926 | else | |
927 | ret = count; | |
928 | } | |
929 | return ret; | |
930 | } | |
931 | ||
932 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
933 | ||
7d47618a EG |
934 | static struct attribute *iwl_sysfs_entries[] = { |
935 | &dev_attr_temperature.attr, | |
936 | &dev_attr_tx_power.attr, | |
7d47618a EG |
937 | #ifdef CONFIG_IWLWIFI_DEBUG |
938 | &dev_attr_debug_level.attr, | |
939 | #endif | |
940 | NULL | |
941 | }; | |
942 | ||
943 | static struct attribute_group iwl_attribute_group = { | |
944 | .name = NULL, /* put in device directory */ | |
945 | .attrs = iwl_sysfs_entries, | |
946 | }; | |
947 | ||
b481de9c ZY |
948 | /****************************************************************************** |
949 | * | |
950 | * uCode download functions | |
951 | * | |
952 | ******************************************************************************/ | |
953 | ||
3599d39a | 954 | static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc) |
dbf28e21 JB |
955 | { |
956 | if (desc->v_addr) | |
3599d39a | 957 | dma_free_coherent(priv->bus.dev, desc->len, |
dbf28e21 JB |
958 | desc->v_addr, desc->p_addr); |
959 | desc->v_addr = NULL; | |
960 | desc->len = 0; | |
961 | } | |
962 | ||
3599d39a | 963 | static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img) |
dbf28e21 | 964 | { |
3599d39a EG |
965 | iwl_free_fw_desc(priv, &img->code); |
966 | iwl_free_fw_desc(priv, &img->data); | |
dbf28e21 JB |
967 | } |
968 | ||
3599d39a EG |
969 | static void iwl_dealloc_ucode(struct iwl_priv *priv) |
970 | { | |
971 | iwl_free_fw_img(priv, &priv->ucode_rt); | |
972 | iwl_free_fw_img(priv, &priv->ucode_init); | |
973 | } | |
974 | ||
975 | static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc, | |
dbf28e21 JB |
976 | const void *data, size_t len) |
977 | { | |
978 | if (!len) { | |
979 | desc->v_addr = NULL; | |
980 | return -EINVAL; | |
981 | } | |
982 | ||
3599d39a | 983 | desc->v_addr = dma_alloc_coherent(priv->bus.dev, len, |
dbf28e21 JB |
984 | &desc->p_addr, GFP_KERNEL); |
985 | if (!desc->v_addr) | |
986 | return -ENOMEM; | |
3599d39a | 987 | |
dbf28e21 JB |
988 | desc->len = len; |
989 | memcpy(desc->v_addr, data, len); | |
990 | return 0; | |
991 | } | |
992 | ||
dd7a2509 JB |
993 | struct iwlagn_ucode_capabilities { |
994 | u32 max_probe_length; | |
6a822d06 | 995 | u32 standard_phy_calibration_size; |
3997ff39 | 996 | u32 flags; |
dd7a2509 | 997 | }; |
edcdf8b2 | 998 | |
b08dfd04 | 999 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); |
dd7a2509 JB |
1000 | static int iwl_mac_setup_register(struct iwl_priv *priv, |
1001 | struct iwlagn_ucode_capabilities *capa); | |
b08dfd04 | 1002 | |
39396085 JS |
1003 | #define UCODE_EXPERIMENTAL_INDEX 100 |
1004 | #define UCODE_EXPERIMENTAL_TAG "exp" | |
1005 | ||
b08dfd04 JB |
1006 | static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) |
1007 | { | |
1008 | const char *name_pre = priv->cfg->fw_name_pre; | |
39396085 | 1009 | char tag[8]; |
b08dfd04 | 1010 | |
39396085 JS |
1011 | if (first) { |
1012 | #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE | |
1013 | priv->fw_index = UCODE_EXPERIMENTAL_INDEX; | |
1014 | strcpy(tag, UCODE_EXPERIMENTAL_TAG); | |
1015 | } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) { | |
1016 | #endif | |
b08dfd04 | 1017 | priv->fw_index = priv->cfg->ucode_api_max; |
39396085 JS |
1018 | sprintf(tag, "%d", priv->fw_index); |
1019 | } else { | |
b08dfd04 | 1020 | priv->fw_index--; |
39396085 JS |
1021 | sprintf(tag, "%d", priv->fw_index); |
1022 | } | |
b08dfd04 JB |
1023 | |
1024 | if (priv->fw_index < priv->cfg->ucode_api_min) { | |
1025 | IWL_ERR(priv, "no suitable firmware found!\n"); | |
1026 | return -ENOENT; | |
1027 | } | |
1028 | ||
39396085 | 1029 | sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); |
b08dfd04 | 1030 | |
39396085 JS |
1031 | IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n", |
1032 | (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
1033 | ? "EXPERIMENTAL " : "", | |
b08dfd04 JB |
1034 | priv->firmware_name); |
1035 | ||
1036 | return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, | |
3599d39a EG |
1037 | priv->bus.dev, |
1038 | GFP_KERNEL, priv, iwl_ucode_callback); | |
b08dfd04 JB |
1039 | } |
1040 | ||
0e9a44dc | 1041 | struct iwlagn_firmware_pieces { |
1fc35276 JB |
1042 | const void *inst, *data, *init, *init_data; |
1043 | size_t inst_size, data_size, init_size, init_data_size; | |
0e9a44dc JB |
1044 | |
1045 | u32 build; | |
b2e640d4 JB |
1046 | |
1047 | u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; | |
1048 | u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; | |
0e9a44dc JB |
1049 | }; |
1050 | ||
1051 | static int iwlagn_load_legacy_firmware(struct iwl_priv *priv, | |
1052 | const struct firmware *ucode_raw, | |
1053 | struct iwlagn_firmware_pieces *pieces) | |
1054 | { | |
1055 | struct iwl_ucode_header *ucode = (void *)ucode_raw->data; | |
1056 | u32 api_ver, hdr_size; | |
1057 | const u8 *src; | |
1058 | ||
1059 | priv->ucode_ver = le32_to_cpu(ucode->ver); | |
1060 | api_ver = IWL_UCODE_API(priv->ucode_ver); | |
1061 | ||
1062 | switch (api_ver) { | |
1063 | default: | |
f7d046f9 WYG |
1064 | hdr_size = 28; |
1065 | if (ucode_raw->size < hdr_size) { | |
1066 | IWL_ERR(priv, "File size too small!\n"); | |
1067 | return -EINVAL; | |
0e9a44dc | 1068 | } |
f7d046f9 WYG |
1069 | pieces->build = le32_to_cpu(ucode->u.v2.build); |
1070 | pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); | |
1071 | pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); | |
1072 | pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); | |
1073 | pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); | |
f7d046f9 WYG |
1074 | src = ucode->u.v2.data; |
1075 | break; | |
0e9a44dc JB |
1076 | case 0: |
1077 | case 1: | |
1078 | case 2: | |
1079 | hdr_size = 24; | |
1080 | if (ucode_raw->size < hdr_size) { | |
1081 | IWL_ERR(priv, "File size too small!\n"); | |
1082 | return -EINVAL; | |
1083 | } | |
1084 | pieces->build = 0; | |
1085 | pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size); | |
1086 | pieces->data_size = le32_to_cpu(ucode->u.v1.data_size); | |
1087 | pieces->init_size = le32_to_cpu(ucode->u.v1.init_size); | |
1088 | pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size); | |
0e9a44dc JB |
1089 | src = ucode->u.v1.data; |
1090 | break; | |
1091 | } | |
1092 | ||
1093 | /* Verify size of file vs. image size info in file's header */ | |
1094 | if (ucode_raw->size != hdr_size + pieces->inst_size + | |
1095 | pieces->data_size + pieces->init_size + | |
1fc35276 | 1096 | pieces->init_data_size) { |
0e9a44dc JB |
1097 | |
1098 | IWL_ERR(priv, | |
1099 | "uCode file size %d does not match expected size\n", | |
1100 | (int)ucode_raw->size); | |
1101 | return -EINVAL; | |
1102 | } | |
1103 | ||
1104 | pieces->inst = src; | |
1105 | src += pieces->inst_size; | |
1106 | pieces->data = src; | |
1107 | src += pieces->data_size; | |
1108 | pieces->init = src; | |
1109 | src += pieces->init_size; | |
1110 | pieces->init_data = src; | |
1111 | src += pieces->init_data_size; | |
0e9a44dc JB |
1112 | |
1113 | return 0; | |
1114 | } | |
1115 | ||
dd7a2509 JB |
1116 | static int iwlagn_wanted_ucode_alternative = 1; |
1117 | ||
1118 | static int iwlagn_load_firmware(struct iwl_priv *priv, | |
1119 | const struct firmware *ucode_raw, | |
1120 | struct iwlagn_firmware_pieces *pieces, | |
1121 | struct iwlagn_ucode_capabilities *capa) | |
1122 | { | |
1123 | struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; | |
1124 | struct iwl_ucode_tlv *tlv; | |
1125 | size_t len = ucode_raw->size; | |
1126 | const u8 *data; | |
1127 | int wanted_alternative = iwlagn_wanted_ucode_alternative, tmp; | |
1128 | u64 alternatives; | |
ad8d8333 WYG |
1129 | u32 tlv_len; |
1130 | enum iwl_ucode_tlv_type tlv_type; | |
1131 | const u8 *tlv_data; | |
dd7a2509 | 1132 | |
ad8d8333 WYG |
1133 | if (len < sizeof(*ucode)) { |
1134 | IWL_ERR(priv, "uCode has invalid length: %zd\n", len); | |
dd7a2509 | 1135 | return -EINVAL; |
ad8d8333 | 1136 | } |
dd7a2509 | 1137 | |
ad8d8333 WYG |
1138 | if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { |
1139 | IWL_ERR(priv, "invalid uCode magic: 0X%x\n", | |
1140 | le32_to_cpu(ucode->magic)); | |
dd7a2509 | 1141 | return -EINVAL; |
ad8d8333 | 1142 | } |
dd7a2509 JB |
1143 | |
1144 | /* | |
1145 | * Check which alternatives are present, and "downgrade" | |
1146 | * when the chosen alternative is not present, warning | |
1147 | * the user when that happens. Some files may not have | |
1148 | * any alternatives, so don't warn in that case. | |
1149 | */ | |
1150 | alternatives = le64_to_cpu(ucode->alternatives); | |
1151 | tmp = wanted_alternative; | |
1152 | if (wanted_alternative > 63) | |
1153 | wanted_alternative = 63; | |
1154 | while (wanted_alternative && !(alternatives & BIT(wanted_alternative))) | |
1155 | wanted_alternative--; | |
1156 | if (wanted_alternative && wanted_alternative != tmp) | |
1157 | IWL_WARN(priv, | |
1158 | "uCode alternative %d not available, choosing %d\n", | |
1159 | tmp, wanted_alternative); | |
1160 | ||
1161 | priv->ucode_ver = le32_to_cpu(ucode->ver); | |
1162 | pieces->build = le32_to_cpu(ucode->build); | |
1163 | data = ucode->data; | |
1164 | ||
1165 | len -= sizeof(*ucode); | |
1166 | ||
704da534 | 1167 | while (len >= sizeof(*tlv)) { |
dd7a2509 | 1168 | u16 tlv_alt; |
dd7a2509 JB |
1169 | |
1170 | len -= sizeof(*tlv); | |
1171 | tlv = (void *)data; | |
1172 | ||
1173 | tlv_len = le32_to_cpu(tlv->length); | |
1174 | tlv_type = le16_to_cpu(tlv->type); | |
1175 | tlv_alt = le16_to_cpu(tlv->alternative); | |
1176 | tlv_data = tlv->data; | |
1177 | ||
ad8d8333 WYG |
1178 | if (len < tlv_len) { |
1179 | IWL_ERR(priv, "invalid TLV len: %zd/%u\n", | |
1180 | len, tlv_len); | |
dd7a2509 | 1181 | return -EINVAL; |
ad8d8333 | 1182 | } |
dd7a2509 JB |
1183 | len -= ALIGN(tlv_len, 4); |
1184 | data += sizeof(*tlv) + ALIGN(tlv_len, 4); | |
1185 | ||
1186 | /* | |
1187 | * Alternative 0 is always valid. | |
1188 | * | |
1189 | * Skip alternative TLVs that are not selected. | |
1190 | */ | |
1191 | if (tlv_alt != 0 && tlv_alt != wanted_alternative) | |
1192 | continue; | |
1193 | ||
1194 | switch (tlv_type) { | |
1195 | case IWL_UCODE_TLV_INST: | |
1196 | pieces->inst = tlv_data; | |
1197 | pieces->inst_size = tlv_len; | |
1198 | break; | |
1199 | case IWL_UCODE_TLV_DATA: | |
1200 | pieces->data = tlv_data; | |
1201 | pieces->data_size = tlv_len; | |
1202 | break; | |
1203 | case IWL_UCODE_TLV_INIT: | |
1204 | pieces->init = tlv_data; | |
1205 | pieces->init_size = tlv_len; | |
1206 | break; | |
1207 | case IWL_UCODE_TLV_INIT_DATA: | |
1208 | pieces->init_data = tlv_data; | |
1209 | pieces->init_data_size = tlv_len; | |
1210 | break; | |
1211 | case IWL_UCODE_TLV_BOOT: | |
1fc35276 | 1212 | IWL_ERR(priv, "Found unexpected BOOT ucode\n"); |
dd7a2509 JB |
1213 | break; |
1214 | case IWL_UCODE_TLV_PROBE_MAX_LEN: | |
704da534 JB |
1215 | if (tlv_len != sizeof(u32)) |
1216 | goto invalid_tlv_len; | |
1217 | capa->max_probe_length = | |
ad8d8333 | 1218 | le32_to_cpup((__le32 *)tlv_data); |
dd7a2509 | 1219 | break; |
ece9c4ee JB |
1220 | case IWL_UCODE_TLV_PAN: |
1221 | if (tlv_len) | |
1222 | goto invalid_tlv_len; | |
3997ff39 JB |
1223 | capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; |
1224 | break; | |
1225 | case IWL_UCODE_TLV_FLAGS: | |
1226 | /* must be at least one u32 */ | |
1227 | if (tlv_len < sizeof(u32)) | |
1228 | goto invalid_tlv_len; | |
1229 | /* and a proper number of u32s */ | |
1230 | if (tlv_len % sizeof(u32)) | |
1231 | goto invalid_tlv_len; | |
1232 | /* | |
1233 | * This driver only reads the first u32 as | |
1234 | * right now no more features are defined, | |
1235 | * if that changes then either the driver | |
1236 | * will not work with the new firmware, or | |
1237 | * it'll not take advantage of new features. | |
1238 | */ | |
1239 | capa->flags = le32_to_cpup((__le32 *)tlv_data); | |
ece9c4ee | 1240 | break; |
b2e640d4 | 1241 | case IWL_UCODE_TLV_INIT_EVTLOG_PTR: |
704da534 JB |
1242 | if (tlv_len != sizeof(u32)) |
1243 | goto invalid_tlv_len; | |
1244 | pieces->init_evtlog_ptr = | |
ad8d8333 | 1245 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
1246 | break; |
1247 | case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: | |
704da534 JB |
1248 | if (tlv_len != sizeof(u32)) |
1249 | goto invalid_tlv_len; | |
1250 | pieces->init_evtlog_size = | |
ad8d8333 | 1251 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
1252 | break; |
1253 | case IWL_UCODE_TLV_INIT_ERRLOG_PTR: | |
704da534 JB |
1254 | if (tlv_len != sizeof(u32)) |
1255 | goto invalid_tlv_len; | |
1256 | pieces->init_errlog_ptr = | |
ad8d8333 | 1257 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
1258 | break; |
1259 | case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: | |
704da534 JB |
1260 | if (tlv_len != sizeof(u32)) |
1261 | goto invalid_tlv_len; | |
1262 | pieces->inst_evtlog_ptr = | |
ad8d8333 | 1263 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
1264 | break; |
1265 | case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: | |
704da534 JB |
1266 | if (tlv_len != sizeof(u32)) |
1267 | goto invalid_tlv_len; | |
1268 | pieces->inst_evtlog_size = | |
ad8d8333 | 1269 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 JB |
1270 | break; |
1271 | case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: | |
704da534 JB |
1272 | if (tlv_len != sizeof(u32)) |
1273 | goto invalid_tlv_len; | |
1274 | pieces->inst_errlog_ptr = | |
ad8d8333 | 1275 | le32_to_cpup((__le32 *)tlv_data); |
b2e640d4 | 1276 | break; |
c8312fac WYG |
1277 | case IWL_UCODE_TLV_ENHANCE_SENS_TBL: |
1278 | if (tlv_len) | |
704da534 JB |
1279 | goto invalid_tlv_len; |
1280 | priv->enhance_sensitivity_table = true; | |
c8312fac | 1281 | break; |
6a822d06 | 1282 | case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: |
704da534 JB |
1283 | if (tlv_len != sizeof(u32)) |
1284 | goto invalid_tlv_len; | |
1285 | capa->standard_phy_calibration_size = | |
6a822d06 WYG |
1286 | le32_to_cpup((__le32 *)tlv_data); |
1287 | break; | |
dd7a2509 | 1288 | default: |
6fc3ba99 | 1289 | IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type); |
dd7a2509 JB |
1290 | break; |
1291 | } | |
1292 | } | |
1293 | ||
ad8d8333 WYG |
1294 | if (len) { |
1295 | IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len); | |
1296 | iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len); | |
704da534 | 1297 | return -EINVAL; |
ad8d8333 | 1298 | } |
dd7a2509 | 1299 | |
704da534 JB |
1300 | return 0; |
1301 | ||
1302 | invalid_tlv_len: | |
1303 | IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); | |
1304 | iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len); | |
1305 | ||
1306 | return -EINVAL; | |
dd7a2509 JB |
1307 | } |
1308 | ||
b481de9c | 1309 | /** |
b08dfd04 | 1310 | * iwl_ucode_callback - callback when firmware was loaded |
b481de9c | 1311 | * |
b08dfd04 JB |
1312 | * If loaded successfully, copies the firmware into buffers |
1313 | * for the card to fetch (via DMA). | |
b481de9c | 1314 | */ |
b08dfd04 | 1315 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) |
b481de9c | 1316 | { |
b08dfd04 | 1317 | struct iwl_priv *priv = context; |
cc0f555d | 1318 | struct iwl_ucode_header *ucode; |
0e9a44dc JB |
1319 | int err; |
1320 | struct iwlagn_firmware_pieces pieces; | |
a0987a8d RC |
1321 | const unsigned int api_max = priv->cfg->ucode_api_max; |
1322 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
0e9a44dc | 1323 | u32 api_ver; |
3e4de761 | 1324 | char buildstr[25]; |
0e9a44dc | 1325 | u32 build; |
dd7a2509 JB |
1326 | struct iwlagn_ucode_capabilities ucode_capa = { |
1327 | .max_probe_length = 200, | |
6a822d06 | 1328 | .standard_phy_calibration_size = |
642454cc | 1329 | IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE, |
dd7a2509 | 1330 | }; |
0e9a44dc JB |
1331 | |
1332 | memset(&pieces, 0, sizeof(pieces)); | |
b481de9c | 1333 | |
b08dfd04 | 1334 | if (!ucode_raw) { |
39396085 JS |
1335 | if (priv->fw_index <= priv->cfg->ucode_api_max) |
1336 | IWL_ERR(priv, | |
1337 | "request for firmware file '%s' failed.\n", | |
1338 | priv->firmware_name); | |
b08dfd04 | 1339 | goto try_again; |
b481de9c ZY |
1340 | } |
1341 | ||
b08dfd04 JB |
1342 | IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", |
1343 | priv->firmware_name, ucode_raw->size); | |
b481de9c | 1344 | |
22adba2a JB |
1345 | /* Make sure that we got at least the API version number */ |
1346 | if (ucode_raw->size < 4) { | |
15b1687c | 1347 | IWL_ERR(priv, "File size way too small!\n"); |
b08dfd04 | 1348 | goto try_again; |
b481de9c ZY |
1349 | } |
1350 | ||
1351 | /* Data from ucode file: header followed by uCode images */ | |
cc0f555d | 1352 | ucode = (struct iwl_ucode_header *)ucode_raw->data; |
b481de9c | 1353 | |
0e9a44dc JB |
1354 | if (ucode->ver) |
1355 | err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces); | |
1356 | else | |
dd7a2509 JB |
1357 | err = iwlagn_load_firmware(priv, ucode_raw, &pieces, |
1358 | &ucode_capa); | |
22adba2a | 1359 | |
0e9a44dc JB |
1360 | if (err) |
1361 | goto try_again; | |
b481de9c | 1362 | |
a0987a8d | 1363 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
0e9a44dc | 1364 | build = pieces.build; |
a0987a8d | 1365 | |
0e9a44dc JB |
1366 | /* |
1367 | * api_ver should match the api version forming part of the | |
1368 | * firmware filename ... but we don't check for that and only rely | |
1369 | * on the API version read from firmware header from here on forward | |
1370 | */ | |
65cccfb0 WYG |
1371 | /* no api version check required for experimental uCode */ |
1372 | if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) { | |
1373 | if (api_ver < api_min || api_ver > api_max) { | |
1374 | IWL_ERR(priv, | |
1375 | "Driver unable to support your firmware API. " | |
1376 | "Driver supports v%u, firmware is v%u.\n", | |
1377 | api_max, api_ver); | |
1378 | goto try_again; | |
1379 | } | |
b08dfd04 | 1380 | |
65cccfb0 WYG |
1381 | if (api_ver != api_max) |
1382 | IWL_ERR(priv, | |
1383 | "Firmware has old API version. Expected v%u, " | |
1384 | "got v%u. New firmware can be obtained " | |
1385 | "from http://www.intellinuxwireless.org.\n", | |
1386 | api_max, api_ver); | |
1387 | } | |
a0987a8d | 1388 | |
3e4de761 | 1389 | if (build) |
39396085 JS |
1390 | sprintf(buildstr, " build %u%s", build, |
1391 | (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
1392 | ? " (EXP)" : ""); | |
3e4de761 JB |
1393 | else |
1394 | buildstr[0] = '\0'; | |
1395 | ||
1396 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n", | |
1397 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
1398 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1399 | IWL_UCODE_API(priv->ucode_ver), | |
1400 | IWL_UCODE_SERIAL(priv->ucode_ver), | |
1401 | buildstr); | |
a0987a8d | 1402 | |
5ebeb5a6 RC |
1403 | snprintf(priv->hw->wiphy->fw_version, |
1404 | sizeof(priv->hw->wiphy->fw_version), | |
3e4de761 | 1405 | "%u.%u.%u.%u%s", |
5ebeb5a6 RC |
1406 | IWL_UCODE_MAJOR(priv->ucode_ver), |
1407 | IWL_UCODE_MINOR(priv->ucode_ver), | |
1408 | IWL_UCODE_API(priv->ucode_ver), | |
3e4de761 JB |
1409 | IWL_UCODE_SERIAL(priv->ucode_ver), |
1410 | buildstr); | |
b481de9c | 1411 | |
b08dfd04 JB |
1412 | /* |
1413 | * For any of the failures below (before allocating pci memory) | |
1414 | * we will try to load a version with a smaller API -- maybe the | |
1415 | * user just got a corrupted version of the latest API. | |
1416 | */ | |
1417 | ||
0e9a44dc JB |
1418 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
1419 | priv->ucode_ver); | |
1420 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n", | |
1421 | pieces.inst_size); | |
1422 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n", | |
1423 | pieces.data_size); | |
1424 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n", | |
1425 | pieces.init_size); | |
1426 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n", | |
1427 | pieces.init_data_size); | |
b481de9c ZY |
1428 | |
1429 | /* Verify that uCode images will fit in card's SRAM */ | |
0e9a44dc JB |
1430 | if (pieces.inst_size > priv->hw_params.max_inst_size) { |
1431 | IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n", | |
1432 | pieces.inst_size); | |
b08dfd04 | 1433 | goto try_again; |
b481de9c ZY |
1434 | } |
1435 | ||
0e9a44dc JB |
1436 | if (pieces.data_size > priv->hw_params.max_data_size) { |
1437 | IWL_ERR(priv, "uCode data len %Zd too large to fit in\n", | |
1438 | pieces.data_size); | |
b08dfd04 | 1439 | goto try_again; |
b481de9c | 1440 | } |
0e9a44dc JB |
1441 | |
1442 | if (pieces.init_size > priv->hw_params.max_inst_size) { | |
1443 | IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n", | |
1444 | pieces.init_size); | |
b08dfd04 | 1445 | goto try_again; |
b481de9c | 1446 | } |
0e9a44dc JB |
1447 | |
1448 | if (pieces.init_data_size > priv->hw_params.max_data_size) { | |
1449 | IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n", | |
1450 | pieces.init_data_size); | |
b08dfd04 | 1451 | goto try_again; |
b481de9c | 1452 | } |
0e9a44dc | 1453 | |
b481de9c ZY |
1454 | /* Allocate ucode buffers for card's bus-master loading ... */ |
1455 | ||
1456 | /* Runtime instructions and 2 copies of data: | |
1457 | * 1) unmodified from disk | |
1458 | * 2) backup cache for save/restore during power-downs */ | |
3599d39a | 1459 | if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code, |
dbf28e21 JB |
1460 | pieces.inst, pieces.inst_size)) |
1461 | goto err_pci_alloc; | |
3599d39a | 1462 | if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data, |
dbf28e21 | 1463 | pieces.data, pieces.data_size)) |
1f304e4e ZY |
1464 | goto err_pci_alloc; |
1465 | ||
b481de9c | 1466 | /* Initialization instructions and data */ |
0e9a44dc | 1467 | if (pieces.init_size && pieces.init_data_size) { |
3599d39a | 1468 | if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code, |
dbf28e21 JB |
1469 | pieces.init, pieces.init_size)) |
1470 | goto err_pci_alloc; | |
3599d39a | 1471 | if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data, |
dbf28e21 | 1472 | pieces.init_data, pieces.init_data_size)) |
90e759d1 TW |
1473 | goto err_pci_alloc; |
1474 | } | |
b481de9c | 1475 | |
b2e640d4 JB |
1476 | /* Now that we can no longer fail, copy information */ |
1477 | ||
1478 | /* | |
1479 | * The (size - 16) / 12 formula is based on the information recorded | |
1480 | * for each event, which is of mode 1 (including timestamp) for all | |
1481 | * new microcodes that include this information. | |
1482 | */ | |
1483 | priv->_agn.init_evtlog_ptr = pieces.init_evtlog_ptr; | |
1484 | if (pieces.init_evtlog_size) | |
1485 | priv->_agn.init_evtlog_size = (pieces.init_evtlog_size - 16)/12; | |
1486 | else | |
7cb1b088 WYG |
1487 | priv->_agn.init_evtlog_size = |
1488 | priv->cfg->base_params->max_event_log_size; | |
b2e640d4 JB |
1489 | priv->_agn.init_errlog_ptr = pieces.init_errlog_ptr; |
1490 | priv->_agn.inst_evtlog_ptr = pieces.inst_evtlog_ptr; | |
1491 | if (pieces.inst_evtlog_size) | |
1492 | priv->_agn.inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; | |
1493 | else | |
7cb1b088 WYG |
1494 | priv->_agn.inst_evtlog_size = |
1495 | priv->cfg->base_params->max_event_log_size; | |
b2e640d4 JB |
1496 | priv->_agn.inst_errlog_ptr = pieces.inst_errlog_ptr; |
1497 | ||
d2690c0d JB |
1498 | priv->new_scan_threshold_behaviour = |
1499 | !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); | |
1500 | ||
b2ea345e WYG |
1501 | if ((priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE) && |
1502 | (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN)) { | |
ece9c4ee | 1503 | priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN); |
c10afb6e | 1504 | priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; |
ece9c4ee JB |
1505 | } else |
1506 | priv->sta_key_max_num = STA_KEY_MAX_NUM; | |
c10afb6e | 1507 | |
17445b8c JB |
1508 | if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)) |
1509 | priv->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; | |
1510 | else | |
1511 | priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; | |
1512 | ||
6a822d06 WYG |
1513 | /* |
1514 | * figure out the offset of chain noise reset and gain commands | |
1515 | * base on the size of standard phy calibration commands table size | |
1516 | */ | |
1517 | if (ucode_capa.standard_phy_calibration_size > | |
1518 | IWL_MAX_PHY_CALIBRATE_TBL_SIZE) | |
1519 | ucode_capa.standard_phy_calibration_size = | |
1520 | IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
1521 | ||
1522 | priv->_agn.phy_calib_chain_noise_reset_cmd = | |
1523 | ucode_capa.standard_phy_calibration_size; | |
1524 | priv->_agn.phy_calib_chain_noise_gain_cmd = | |
1525 | ucode_capa.standard_phy_calibration_size + 1; | |
1526 | ||
b08dfd04 JB |
1527 | /************************************************** |
1528 | * This is still part of probe() in a sense... | |
1529 | * | |
1530 | * 9. Setup and register with mac80211 and debugfs | |
1531 | **************************************************/ | |
dd7a2509 | 1532 | err = iwl_mac_setup_register(priv, &ucode_capa); |
b08dfd04 JB |
1533 | if (err) |
1534 | goto out_unbind; | |
1535 | ||
1536 | err = iwl_dbgfs_register(priv, DRV_NAME); | |
1537 | if (err) | |
1538 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); | |
1539 | ||
3599d39a | 1540 | err = sysfs_create_group(&(priv->bus.dev->kobj), |
7d47618a EG |
1541 | &iwl_attribute_group); |
1542 | if (err) { | |
1543 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); | |
1544 | goto out_unbind; | |
1545 | } | |
1546 | ||
b481de9c ZY |
1547 | /* We have our copies now, allow OS release its copies */ |
1548 | release_firmware(ucode_raw); | |
a15707d8 | 1549 | complete(&priv->_agn.firmware_loading_complete); |
b08dfd04 JB |
1550 | return; |
1551 | ||
1552 | try_again: | |
1553 | /* try next, if any */ | |
1554 | if (iwl_request_firmware(priv, false)) | |
1555 | goto out_unbind; | |
1556 | release_firmware(ucode_raw); | |
1557 | return; | |
b481de9c ZY |
1558 | |
1559 | err_pci_alloc: | |
15b1687c | 1560 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
3599d39a | 1561 | iwl_dealloc_ucode(priv); |
b08dfd04 | 1562 | out_unbind: |
a15707d8 | 1563 | complete(&priv->_agn.firmware_loading_complete); |
3599d39a | 1564 | device_release_driver(priv->bus.dev); |
b481de9c | 1565 | release_firmware(ucode_raw); |
b481de9c ZY |
1566 | } |
1567 | ||
2a897d41 | 1568 | static const char * const desc_lookup_text[] = { |
b7a79404 RC |
1569 | "OK", |
1570 | "FAIL", | |
1571 | "BAD_PARAM", | |
1572 | "BAD_CHECKSUM", | |
1573 | "NMI_INTERRUPT_WDG", | |
1574 | "SYSASSERT", | |
1575 | "FATAL_ERROR", | |
1576 | "BAD_COMMAND", | |
1577 | "HW_ERROR_TUNE_LOCK", | |
1578 | "HW_ERROR_TEMPERATURE", | |
1579 | "ILLEGAL_CHAN_FREQ", | |
1580 | "VCC_NOT_STABLE", | |
1581 | "FH_ERROR", | |
1582 | "NMI_INTERRUPT_HOST", | |
1583 | "NMI_INTERRUPT_ACTION_PT", | |
1584 | "NMI_INTERRUPT_UNKNOWN", | |
1585 | "UCODE_VERSION_MISMATCH", | |
1586 | "HW_ERROR_ABS_LOCK", | |
1587 | "HW_ERROR_CAL_LOCK_FAIL", | |
1588 | "NMI_INTERRUPT_INST_ACTION_PT", | |
1589 | "NMI_INTERRUPT_DATA_ACTION_PT", | |
1590 | "NMI_TRM_HW_ER", | |
1591 | "NMI_INTERRUPT_TRM", | |
2a897d41 | 1592 | "NMI_INTERRUPT_BREAK_POINT", |
b7a79404 RC |
1593 | "DEBUG_0", |
1594 | "DEBUG_1", | |
1595 | "DEBUG_2", | |
1596 | "DEBUG_3", | |
b7a79404 RC |
1597 | }; |
1598 | ||
4b58645c JS |
1599 | static struct { char *name; u8 num; } advanced_lookup[] = { |
1600 | { "NMI_INTERRUPT_WDG", 0x34 }, | |
1601 | { "SYSASSERT", 0x35 }, | |
1602 | { "UCODE_VERSION_MISMATCH", 0x37 }, | |
1603 | { "BAD_COMMAND", 0x38 }, | |
1604 | { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, | |
1605 | { "FATAL_ERROR", 0x3D }, | |
1606 | { "NMI_TRM_HW_ERR", 0x46 }, | |
1607 | { "NMI_INTERRUPT_TRM", 0x4C }, | |
1608 | { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, | |
1609 | { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, | |
1610 | { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, | |
1611 | { "NMI_INTERRUPT_HOST", 0x66 }, | |
1612 | { "NMI_INTERRUPT_ACTION_PT", 0x7C }, | |
1613 | { "NMI_INTERRUPT_UNKNOWN", 0x84 }, | |
1614 | { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, | |
1615 | { "ADVANCED_SYSASSERT", 0 }, | |
1616 | }; | |
1617 | ||
1618 | static const char *desc_lookup(u32 num) | |
b7a79404 | 1619 | { |
4b58645c JS |
1620 | int i; |
1621 | int max = ARRAY_SIZE(desc_lookup_text); | |
b7a79404 | 1622 | |
4b58645c JS |
1623 | if (num < max) |
1624 | return desc_lookup_text[num]; | |
b7a79404 | 1625 | |
4b58645c JS |
1626 | max = ARRAY_SIZE(advanced_lookup) - 1; |
1627 | for (i = 0; i < max; i++) { | |
1628 | if (advanced_lookup[i].num == num) | |
6eab04a8 | 1629 | break; |
4b58645c JS |
1630 | } |
1631 | return advanced_lookup[i].name; | |
b7a79404 RC |
1632 | } |
1633 | ||
1634 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1635 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1636 | ||
1637 | void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1638 | { | |
50650547 | 1639 | u32 base; |
e46f6538 | 1640 | struct iwl_error_event_table table; |
b7a79404 | 1641 | |
d7d5783c | 1642 | base = priv->device_pointers.error_event_table; |
872907bb | 1643 | if (priv->ucode_type == IWL_UCODE_INIT) { |
b2e640d4 JB |
1644 | if (!base) |
1645 | base = priv->_agn.init_errlog_ptr; | |
1646 | } else { | |
b2e640d4 JB |
1647 | if (!base) |
1648 | base = priv->_agn.inst_errlog_ptr; | |
1649 | } | |
b7a79404 RC |
1650 | |
1651 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
212fb575 WYG |
1652 | IWL_ERR(priv, |
1653 | "Not valid error log pointer 0x%08X for %s uCode\n", | |
ca7966c8 | 1654 | base, |
872907bb | 1655 | (priv->ucode_type == IWL_UCODE_INIT) |
ca7966c8 | 1656 | ? "Init" : "RT"); |
b7a79404 RC |
1657 | return; |
1658 | } | |
1659 | ||
e46f6538 JB |
1660 | iwl_read_targ_mem_words(priv, base, &table, sizeof(table)); |
1661 | ||
50650547 | 1662 | if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { |
b7a79404 RC |
1663 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
1664 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
50650547 | 1665 | priv->status, table.valid); |
b7a79404 RC |
1666 | } |
1667 | ||
50650547 WYG |
1668 | priv->isr_stats.err_code = table.error_id; |
1669 | ||
1670 | trace_iwlwifi_dev_ucode_error(priv, table.error_id, table.tsf_low, | |
1671 | table.data1, table.data2, table.line, | |
1672 | table.blink1, table.blink2, table.ilink1, | |
1673 | table.ilink2, table.bcon_time, table.gp1, | |
1674 | table.gp2, table.gp3, table.ucode_ver, | |
1675 | table.hw_ver, table.brd_ver); | |
1676 | IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id, | |
1677 | desc_lookup(table.error_id)); | |
1678 | IWL_ERR(priv, "0x%08X | uPc\n", table.pc); | |
1679 | IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1); | |
1680 | IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2); | |
1681 | IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1); | |
1682 | IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2); | |
1683 | IWL_ERR(priv, "0x%08X | data1\n", table.data1); | |
1684 | IWL_ERR(priv, "0x%08X | data2\n", table.data2); | |
1685 | IWL_ERR(priv, "0x%08X | line\n", table.line); | |
1686 | IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time); | |
1687 | IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low); | |
1688 | IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi); | |
1689 | IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1); | |
1690 | IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2); | |
1691 | IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3); | |
1692 | IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver); | |
1693 | IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver); | |
1694 | IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver); | |
1695 | IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd); | |
b7a79404 RC |
1696 | } |
1697 | ||
1698 | #define EVENT_START_OFFSET (4 * sizeof(u32)) | |
1699 | ||
1700 | /** | |
1701 | * iwl_print_event_log - Dump error event log to syslog | |
1702 | * | |
1703 | */ | |
b03d7d0f WYG |
1704 | static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
1705 | u32 num_events, u32 mode, | |
1706 | int pos, char **buf, size_t bufsz) | |
b7a79404 RC |
1707 | { |
1708 | u32 i; | |
1709 | u32 base; /* SRAM byte address of event log header */ | |
1710 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1711 | u32 ptr; /* SRAM byte address of log data */ | |
1712 | u32 ev, time, data; /* event log data */ | |
e5854471 | 1713 | unsigned long reg_flags; |
b7a79404 RC |
1714 | |
1715 | if (num_events == 0) | |
b03d7d0f | 1716 | return pos; |
b2e640d4 | 1717 | |
d7d5783c | 1718 | base = priv->device_pointers.log_event_table; |
872907bb | 1719 | if (priv->ucode_type == IWL_UCODE_INIT) { |
b2e640d4 JB |
1720 | if (!base) |
1721 | base = priv->_agn.init_evtlog_ptr; | |
1722 | } else { | |
b2e640d4 JB |
1723 | if (!base) |
1724 | base = priv->_agn.inst_evtlog_ptr; | |
1725 | } | |
b7a79404 RC |
1726 | |
1727 | if (mode == 0) | |
1728 | event_size = 2 * sizeof(u32); | |
1729 | else | |
1730 | event_size = 3 * sizeof(u32); | |
1731 | ||
1732 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1733 | ||
e5854471 BC |
1734 | /* Make sure device is powered up for SRAM reads */ |
1735 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
1736 | iwl_grab_nic_access(priv); | |
1737 | ||
1738 | /* Set starting address; reads will auto-increment */ | |
02a7fa00 | 1739 | iwl_write32(priv, HBUS_TARG_MEM_RADDR, ptr); |
e5854471 BC |
1740 | rmb(); |
1741 | ||
b7a79404 RC |
1742 | /* "time" is actually "data" for mode 0 (no timestamp). |
1743 | * place event id # at far right for easier visual parsing. */ | |
1744 | for (i = 0; i < num_events; i++) { | |
02a7fa00 JB |
1745 | ev = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
1746 | time = iwl_read32(priv, HBUS_TARG_MEM_RDAT); | |
b7a79404 RC |
1747 | if (mode == 0) { |
1748 | /* data, ev */ | |
b03d7d0f WYG |
1749 | if (bufsz) { |
1750 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1751 | "EVT_LOG:0x%08x:%04u\n", | |
1752 | time, ev); | |
1753 | } else { | |
1754 | trace_iwlwifi_dev_ucode_event(priv, 0, | |
1755 | time, ev); | |
1756 | IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", | |
1757 | time, ev); | |
1758 | } | |
b7a79404 | 1759 | } else { |
02a7fa00 | 1760 | data = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
b03d7d0f WYG |
1761 | if (bufsz) { |
1762 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1763 | "EVT_LOGT:%010u:0x%08x:%04u\n", | |
1764 | time, data, ev); | |
1765 | } else { | |
1766 | IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", | |
b7a79404 | 1767 | time, data, ev); |
b03d7d0f WYG |
1768 | trace_iwlwifi_dev_ucode_event(priv, time, |
1769 | data, ev); | |
1770 | } | |
b7a79404 RC |
1771 | } |
1772 | } | |
e5854471 BC |
1773 | |
1774 | /* Allow device to power down */ | |
1775 | iwl_release_nic_access(priv); | |
1776 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
b03d7d0f | 1777 | return pos; |
b7a79404 RC |
1778 | } |
1779 | ||
c341ddb2 WYG |
1780 | /** |
1781 | * iwl_print_last_event_logs - Dump the newest # of event log to syslog | |
1782 | */ | |
b03d7d0f WYG |
1783 | static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity, |
1784 | u32 num_wraps, u32 next_entry, | |
1785 | u32 size, u32 mode, | |
1786 | int pos, char **buf, size_t bufsz) | |
c341ddb2 WYG |
1787 | { |
1788 | /* | |
1789 | * display the newest DEFAULT_LOG_ENTRIES entries | |
1790 | * i.e the entries just before the next ont that uCode would fill. | |
1791 | */ | |
1792 | if (num_wraps) { | |
1793 | if (next_entry < size) { | |
b03d7d0f WYG |
1794 | pos = iwl_print_event_log(priv, |
1795 | capacity - (size - next_entry), | |
1796 | size - next_entry, mode, | |
1797 | pos, buf, bufsz); | |
1798 | pos = iwl_print_event_log(priv, 0, | |
1799 | next_entry, mode, | |
1800 | pos, buf, bufsz); | |
c341ddb2 | 1801 | } else |
b03d7d0f WYG |
1802 | pos = iwl_print_event_log(priv, next_entry - size, |
1803 | size, mode, pos, buf, bufsz); | |
c341ddb2 | 1804 | } else { |
b03d7d0f WYG |
1805 | if (next_entry < size) { |
1806 | pos = iwl_print_event_log(priv, 0, next_entry, | |
1807 | mode, pos, buf, bufsz); | |
1808 | } else { | |
1809 | pos = iwl_print_event_log(priv, next_entry - size, | |
1810 | size, mode, pos, buf, bufsz); | |
1811 | } | |
c341ddb2 | 1812 | } |
b03d7d0f | 1813 | return pos; |
c341ddb2 WYG |
1814 | } |
1815 | ||
c341ddb2 WYG |
1816 | #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20) |
1817 | ||
b03d7d0f WYG |
1818 | int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, |
1819 | char **buf, bool display) | |
b7a79404 RC |
1820 | { |
1821 | u32 base; /* SRAM byte address of event log header */ | |
1822 | u32 capacity; /* event log capacity in # entries */ | |
1823 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1824 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1825 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1826 | u32 size; /* # entries that we'll print */ | |
b2e640d4 | 1827 | u32 logsize; |
b03d7d0f WYG |
1828 | int pos = 0; |
1829 | size_t bufsz = 0; | |
b7a79404 | 1830 | |
d7d5783c | 1831 | base = priv->device_pointers.log_event_table; |
872907bb | 1832 | if (priv->ucode_type == IWL_UCODE_INIT) { |
b2e640d4 JB |
1833 | logsize = priv->_agn.init_evtlog_size; |
1834 | if (!base) | |
1835 | base = priv->_agn.init_evtlog_ptr; | |
1836 | } else { | |
b2e640d4 JB |
1837 | logsize = priv->_agn.inst_evtlog_size; |
1838 | if (!base) | |
1839 | base = priv->_agn.inst_evtlog_ptr; | |
1840 | } | |
b7a79404 RC |
1841 | |
1842 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
212fb575 WYG |
1843 | IWL_ERR(priv, |
1844 | "Invalid event log pointer 0x%08X for %s uCode\n", | |
ca7966c8 | 1845 | base, |
872907bb | 1846 | (priv->ucode_type == IWL_UCODE_INIT) |
ca7966c8 | 1847 | ? "Init" : "RT"); |
937c397e | 1848 | return -EINVAL; |
b7a79404 RC |
1849 | } |
1850 | ||
1851 | /* event log header */ | |
1852 | capacity = iwl_read_targ_mem(priv, base); | |
1853 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1854 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1855 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
1856 | ||
b2e640d4 | 1857 | if (capacity > logsize) { |
84c40692 | 1858 | IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n", |
b2e640d4 JB |
1859 | capacity, logsize); |
1860 | capacity = logsize; | |
84c40692 BC |
1861 | } |
1862 | ||
b2e640d4 | 1863 | if (next_entry > logsize) { |
84c40692 | 1864 | IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", |
b2e640d4 JB |
1865 | next_entry, logsize); |
1866 | next_entry = logsize; | |
84c40692 BC |
1867 | } |
1868 | ||
b7a79404 RC |
1869 | size = num_wraps ? capacity : next_entry; |
1870 | ||
1871 | /* bail out if nothing in log */ | |
1872 | if (size == 0) { | |
1873 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); | |
b03d7d0f | 1874 | return pos; |
b7a79404 RC |
1875 | } |
1876 | ||
9f28ebc3 | 1877 | /* enable/disable bt channel inhibition */ |
f37837c9 WYG |
1878 | priv->bt_ch_announce = iwlagn_bt_ch_announce; |
1879 | ||
c341ddb2 | 1880 | #ifdef CONFIG_IWLWIFI_DEBUG |
521d9bce | 1881 | if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) |
c341ddb2 WYG |
1882 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) |
1883 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
1884 | #else | |
1885 | size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) | |
1886 | ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; | |
1887 | #endif | |
1888 | IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", | |
1889 | size); | |
b7a79404 | 1890 | |
c341ddb2 | 1891 | #ifdef CONFIG_IWLWIFI_DEBUG |
b03d7d0f WYG |
1892 | if (display) { |
1893 | if (full_log) | |
1894 | bufsz = capacity * 48; | |
1895 | else | |
1896 | bufsz = size * 48; | |
1897 | *buf = kmalloc(bufsz, GFP_KERNEL); | |
1898 | if (!*buf) | |
937c397e | 1899 | return -ENOMEM; |
b03d7d0f | 1900 | } |
c341ddb2 WYG |
1901 | if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) { |
1902 | /* | |
1903 | * if uCode has wrapped back to top of log, | |
1904 | * start at the oldest entry, | |
1905 | * i.e the next one that uCode would fill. | |
1906 | */ | |
1907 | if (num_wraps) | |
b03d7d0f WYG |
1908 | pos = iwl_print_event_log(priv, next_entry, |
1909 | capacity - next_entry, mode, | |
1910 | pos, buf, bufsz); | |
c341ddb2 | 1911 | /* (then/else) start at top of log */ |
b03d7d0f WYG |
1912 | pos = iwl_print_event_log(priv, 0, |
1913 | next_entry, mode, pos, buf, bufsz); | |
c341ddb2 | 1914 | } else |
b03d7d0f WYG |
1915 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, |
1916 | next_entry, size, mode, | |
1917 | pos, buf, bufsz); | |
c341ddb2 | 1918 | #else |
b03d7d0f WYG |
1919 | pos = iwl_print_last_event_logs(priv, capacity, num_wraps, |
1920 | next_entry, size, mode, | |
1921 | pos, buf, bufsz); | |
b7a79404 | 1922 | #endif |
b03d7d0f | 1923 | return pos; |
c341ddb2 | 1924 | } |
b7a79404 | 1925 | |
0975cc8f WYG |
1926 | static void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
1927 | { | |
1928 | struct iwl_ct_kill_config cmd; | |
1929 | struct iwl_ct_kill_throttling_config adv_cmd; | |
1930 | unsigned long flags; | |
1931 | int ret = 0; | |
1932 | ||
1933 | spin_lock_irqsave(&priv->lock, flags); | |
1934 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
1935 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); | |
1936 | spin_unlock_irqrestore(&priv->lock, flags); | |
1937 | priv->thermal_throttle.ct_kill_toggle = false; | |
1938 | ||
7cb1b088 | 1939 | if (priv->cfg->base_params->support_ct_kill_exit) { |
0975cc8f WYG |
1940 | adv_cmd.critical_temperature_enter = |
1941 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
1942 | adv_cmd.critical_temperature_exit = | |
1943 | cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); | |
1944 | ||
bdfbf092 | 1945 | ret = trans_send_cmd_pdu(priv, |
e419d62d EG |
1946 | REPLY_CT_KILL_CONFIG_CMD, |
1947 | CMD_SYNC, sizeof(adv_cmd), &adv_cmd); | |
0975cc8f WYG |
1948 | if (ret) |
1949 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
1950 | else | |
1951 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
1952 | "succeeded, " | |
1953 | "critical temperature enter is %d," | |
1954 | "exit is %d\n", | |
1955 | priv->hw_params.ct_kill_threshold, | |
1956 | priv->hw_params.ct_kill_exit_threshold); | |
1957 | } else { | |
1958 | cmd.critical_temperature_R = | |
1959 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
1960 | ||
bdfbf092 | 1961 | ret = trans_send_cmd_pdu(priv, |
e419d62d EG |
1962 | REPLY_CT_KILL_CONFIG_CMD, |
1963 | CMD_SYNC, sizeof(cmd), &cmd); | |
0975cc8f WYG |
1964 | if (ret) |
1965 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
1966 | else | |
1967 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " | |
1968 | "succeeded, " | |
1969 | "critical temperature is %d\n", | |
1970 | priv->hw_params.ct_kill_threshold); | |
1971 | } | |
1972 | } | |
1973 | ||
6d6a1afd SZ |
1974 | static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) |
1975 | { | |
1976 | struct iwl_calib_cfg_cmd calib_cfg_cmd; | |
1977 | struct iwl_host_cmd cmd = { | |
1978 | .id = CALIBRATION_CFG_CMD, | |
3fa50738 JB |
1979 | .len = { sizeof(struct iwl_calib_cfg_cmd), }, |
1980 | .data = { &calib_cfg_cmd, }, | |
6d6a1afd SZ |
1981 | }; |
1982 | ||
1983 | memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); | |
1984 | calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; | |
7cb1b088 | 1985 | calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); |
6d6a1afd | 1986 | |
bdfbf092 | 1987 | return trans_send_cmd(priv, &cmd); |
6d6a1afd SZ |
1988 | } |
1989 | ||
1990 | ||
b481de9c | 1991 | /** |
4a4a9e81 | 1992 | * iwl_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 1993 | * from protocol/runtime uCode (initialization uCode's |
4a4a9e81 | 1994 | * Alive gets handled by iwl_init_alive_start()). |
b481de9c | 1995 | */ |
4613e72d | 1996 | int iwl_alive_start(struct iwl_priv *priv) |
b481de9c | 1997 | { |
57aab75a | 1998 | int ret = 0; |
246ed355 | 1999 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
b481de9c | 2000 | |
ca7966c8 | 2001 | iwl_reset_ict(priv); |
b481de9c | 2002 | |
ca7966c8 | 2003 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
6d6a1afd | 2004 | |
5b9f8cd3 | 2005 | /* After the ALIVE response, we can send host commands to the uCode */ |
b481de9c ZY |
2006 | set_bit(STATUS_ALIVE, &priv->status); |
2007 | ||
22de94de SG |
2008 | /* Enable watchdog to monitor the driver tx queues */ |
2009 | iwl_setup_watchdog(priv); | |
b74e31a9 | 2010 | |
fee1247a | 2011 | if (iwl_is_rfkill(priv)) |
ca7966c8 | 2012 | return -ERFKILL; |
b481de9c | 2013 | |
bc795df1 | 2014 | /* download priority table before any calibration request */ |
7cb1b088 WYG |
2015 | if (priv->cfg->bt_params && |
2016 | priv->cfg->bt_params->advanced_bt_coexist) { | |
f7322f8f | 2017 | /* Configure Bluetooth device coexistence support */ |
207ecc5e MV |
2018 | if (priv->cfg->bt_params->bt_sco_disable) |
2019 | priv->bt_enable_pspoll = false; | |
2020 | else | |
2021 | priv->bt_enable_pspoll = true; | |
2022 | ||
f7322f8f WYG |
2023 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
2024 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; | |
2025 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
e55b517c | 2026 | iwlagn_send_advance_bt_config(priv); |
f7322f8f | 2027 | priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; |
207ecc5e MV |
2028 | priv->cur_rssi_ctx = NULL; |
2029 | ||
a5901cbb | 2030 | iwlagn_send_prio_tbl(priv); |
f7322f8f WYG |
2031 | |
2032 | /* FIXME: w/a to force change uCode BT state machine */ | |
ca7966c8 JB |
2033 | ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, |
2034 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); | |
2035 | if (ret) | |
2036 | return ret; | |
2037 | ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE, | |
2038 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); | |
2039 | if (ret) | |
2040 | return ret; | |
e55b517c WYG |
2041 | } else { |
2042 | /* | |
2043 | * default is 2-wire BT coexexistence support | |
2044 | */ | |
2045 | iwl_send_bt_config(priv); | |
f7322f8f | 2046 | } |
e55b517c | 2047 | |
bc795df1 WYG |
2048 | if (priv->hw_params.calib_rt_cfg) |
2049 | iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg); | |
2050 | ||
36d6825b | 2051 | ieee80211_wake_queues(priv->hw); |
b481de9c | 2052 | |
470ab2dd | 2053 | priv->active_rate = IWL_RATES_MASK; |
b481de9c | 2054 | |
2f748dec | 2055 | /* Configure Tx antenna selection based on H/W config */ |
e3f10cea | 2056 | iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); |
2f748dec | 2057 | |
246ed355 | 2058 | if (iwl_is_associated_ctx(ctx)) { |
c1adf9fb | 2059 | struct iwl_rxon_cmd *active_rxon = |
246ed355 | 2060 | (struct iwl_rxon_cmd *)&ctx->active; |
019fb97d | 2061 | /* apply any changes in staging */ |
246ed355 | 2062 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c ZY |
2063 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
2064 | } else { | |
d0fe478c | 2065 | struct iwl_rxon_context *tmp; |
b481de9c | 2066 | /* Initialize our rx_config data */ |
d0fe478c JB |
2067 | for_each_context(priv, tmp) |
2068 | iwl_connection_init_rx_config(priv, tmp); | |
45823531 | 2069 | |
e3f10cea | 2070 | iwlagn_set_rxon_chain(priv, ctx); |
b481de9c ZY |
2071 | } |
2072 | ||
4a4a9e81 TW |
2073 | iwl_reset_run_time_calib(priv); |
2074 | ||
9e2e7422 WYG |
2075 | set_bit(STATUS_READY, &priv->status); |
2076 | ||
b481de9c | 2077 | /* Configure the adapter for unassociated operation */ |
805a3b81 | 2078 | ret = iwlagn_commit_rxon(priv, ctx); |
ca7966c8 JB |
2079 | if (ret) |
2080 | return ret; | |
b481de9c ZY |
2081 | |
2082 | /* At this point, the NIC is initialized and operational */ | |
47f4a587 | 2083 | iwl_rf_kill_ct_config(priv); |
5a66926a | 2084 | |
e1623446 | 2085 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
c46fbefa | 2086 | |
ca7966c8 | 2087 | return iwl_power_update_mode(priv, true); |
b481de9c ZY |
2088 | } |
2089 | ||
4e39317d | 2090 | static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2091 | |
5b9f8cd3 | 2092 | static void __iwl_down(struct iwl_priv *priv) |
b481de9c | 2093 | { |
22dd2fd2 | 2094 | int exit_pending; |
b481de9c | 2095 | |
e1623446 | 2096 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c | 2097 | |
d745d472 SG |
2098 | iwl_scan_cancel_timeout(priv, 200); |
2099 | ||
2100 | exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); | |
b481de9c | 2101 | |
b62177a0 SG |
2102 | /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set |
2103 | * to prevent rearm timer */ | |
22de94de | 2104 | del_timer_sync(&priv->watchdog); |
b62177a0 | 2105 | |
dcef732c | 2106 | iwl_clear_ucode_stations(priv, NULL); |
a194e324 | 2107 | iwl_dealloc_bcast_stations(priv); |
db125c78 | 2108 | iwl_clear_driver_stations(priv); |
b481de9c | 2109 | |
a1174138 | 2110 | /* reset BT coex data */ |
da5dbb97 | 2111 | priv->bt_status = 0; |
207ecc5e MV |
2112 | priv->cur_rssi_ctx = NULL; |
2113 | priv->bt_is_sco = 0; | |
7cb1b088 WYG |
2114 | if (priv->cfg->bt_params) |
2115 | priv->bt_traffic_load = | |
2116 | priv->cfg->bt_params->bt_init_traffic_load; | |
2117 | else | |
2118 | priv->bt_traffic_load = 0; | |
bee008b7 WYG |
2119 | priv->bt_full_concurrent = false; |
2120 | priv->bt_ci_compliance = 0; | |
a1174138 | 2121 | |
b481de9c ZY |
2122 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
2123 | * exiting the module */ | |
2124 | if (!exit_pending) | |
2125 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
2126 | ||
b481de9c ZY |
2127 | if (priv->mac80211_registered) |
2128 | ieee80211_stop_queues(priv->hw); | |
2129 | ||
1a10f433 | 2130 | /* Clear out all status bits but a few that are stable across reset */ |
b481de9c ZY |
2131 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2132 | STATUS_RF_KILL_HW | | |
9788864e RC |
2133 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2134 | STATUS_GEO_CONFIGURED | | |
b481de9c | 2135 | test_bit(STATUS_FW_ERROR, &priv->status) << |
052ec3f1 MA |
2136 | STATUS_FW_ERROR | |
2137 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2138 | STATUS_EXIT_PENDING; | |
b481de9c | 2139 | |
bc4f8ada | 2140 | iwlagn_stop_device(priv); |
4d2ccdb9 | 2141 | |
77834543 | 2142 | dev_kfree_skb(priv->beacon_skb); |
12e934dc | 2143 | priv->beacon_skb = NULL; |
b481de9c ZY |
2144 | } |
2145 | ||
5b9f8cd3 | 2146 | static void iwl_down(struct iwl_priv *priv) |
b481de9c ZY |
2147 | { |
2148 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2149 | __iwl_down(priv); |
b481de9c | 2150 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2151 | |
4e39317d | 2152 | iwl_cancel_deferred_work(priv); |
b481de9c ZY |
2153 | } |
2154 | ||
086ed117 MA |
2155 | #define HW_READY_TIMEOUT (50) |
2156 | ||
4cd2bf76 | 2157 | /* Note: returns poll_bit return value, which is >= 0 if success */ |
086ed117 MA |
2158 | static int iwl_set_hw_ready(struct iwl_priv *priv) |
2159 | { | |
4cd2bf76 | 2160 | int ret; |
086ed117 MA |
2161 | |
2162 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, | |
2163 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY); | |
2164 | ||
2165 | /* See if we got it */ | |
2166 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, | |
2167 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, | |
2168 | CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, | |
2169 | HW_READY_TIMEOUT); | |
086ed117 | 2170 | |
4cd2bf76 | 2171 | IWL_DEBUG_INFO(priv, "hardware%s ready\n", ret < 0 ? " not" : ""); |
086ed117 MA |
2172 | return ret; |
2173 | } | |
2174 | ||
4cd2bf76 | 2175 | /* Note: returns standard 0/-ERROR code */ |
3e14c1fd | 2176 | int iwl_prepare_card_hw(struct iwl_priv *priv) |
086ed117 | 2177 | { |
4cd2bf76 | 2178 | int ret; |
086ed117 | 2179 | |
91dd6c27 | 2180 | IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter\n"); |
086ed117 | 2181 | |
3354a0f6 | 2182 | ret = iwl_set_hw_ready(priv); |
4cd2bf76 JB |
2183 | if (ret >= 0) |
2184 | return 0; | |
3354a0f6 MA |
2185 | |
2186 | /* If HW is not ready, prepare the conditions to check again */ | |
086ed117 MA |
2187 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
2188 | CSR_HW_IF_CONFIG_REG_PREPARE); | |
2189 | ||
2190 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, | |
2191 | ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, | |
2192 | CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000); | |
2193 | ||
4cd2bf76 JB |
2194 | if (ret < 0) |
2195 | return ret; | |
086ed117 | 2196 | |
4cd2bf76 JB |
2197 | /* HW should be ready by now, check again. */ |
2198 | ret = iwl_set_hw_ready(priv); | |
2199 | if (ret >= 0) | |
2200 | return 0; | |
086ed117 MA |
2201 | return ret; |
2202 | } | |
2203 | ||
b481de9c ZY |
2204 | #define MAX_HW_RESTARTS 5 |
2205 | ||
5b9f8cd3 | 2206 | static int __iwl_up(struct iwl_priv *priv) |
b481de9c | 2207 | { |
a194e324 | 2208 | struct iwl_rxon_context *ctx; |
57aab75a | 2209 | int ret; |
b481de9c | 2210 | |
ca7966c8 JB |
2211 | lockdep_assert_held(&priv->mutex); |
2212 | ||
b481de9c | 2213 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
39aadf8c | 2214 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
b481de9c ZY |
2215 | return -EIO; |
2216 | } | |
2217 | ||
a194e324 | 2218 | for_each_context(priv, ctx) { |
a30e3112 | 2219 | ret = iwlagn_alloc_bcast_station(priv, ctx); |
a194e324 JB |
2220 | if (ret) { |
2221 | iwl_dealloc_bcast_stations(priv); | |
2222 | return ret; | |
2223 | } | |
2224 | } | |
2c810ccd | 2225 | |
ca7966c8 JB |
2226 | ret = iwlagn_run_init_ucode(priv); |
2227 | if (ret) { | |
2228 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
2229 | goto error; | |
2230 | } | |
b481de9c | 2231 | |
ca7966c8 | 2232 | ret = iwlagn_load_ucode_wait_alive(priv, |
dbf28e21 | 2233 | &priv->ucode_rt, |
872907bb | 2234 | IWL_UCODE_REGULAR); |
ca7966c8 JB |
2235 | if (ret) { |
2236 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
2237 | goto error; | |
b481de9c ZY |
2238 | } |
2239 | ||
ca7966c8 JB |
2240 | ret = iwl_alive_start(priv); |
2241 | if (ret) | |
2242 | goto error; | |
2243 | return 0; | |
2244 | ||
2245 | error: | |
b481de9c | 2246 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
5b9f8cd3 | 2247 | __iwl_down(priv); |
64e72c3e | 2248 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c | 2249 | |
ca7966c8 JB |
2250 | IWL_ERR(priv, "Unable to initialize device.\n"); |
2251 | return ret; | |
b481de9c ZY |
2252 | } |
2253 | ||
2254 | ||
2255 | /***************************************************************************** | |
2256 | * | |
2257 | * Workqueue callbacks | |
2258 | * | |
2259 | *****************************************************************************/ | |
2260 | ||
16e727e8 EG |
2261 | static void iwl_bg_run_time_calib_work(struct work_struct *work) |
2262 | { | |
2263 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
2264 | run_time_calib_work); | |
2265 | ||
2266 | mutex_lock(&priv->mutex); | |
2267 | ||
2268 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
2269 | test_bit(STATUS_SCANNING, &priv->status)) { | |
2270 | mutex_unlock(&priv->mutex); | |
2271 | return; | |
2272 | } | |
2273 | ||
2274 | if (priv->start_calib) { | |
0da0e5bf JB |
2275 | iwl_chain_noise_calibration(priv); |
2276 | iwl_sensitivity_calibration(priv); | |
16e727e8 EG |
2277 | } |
2278 | ||
2279 | mutex_unlock(&priv->mutex); | |
16e727e8 EG |
2280 | } |
2281 | ||
e43e85c4 JB |
2282 | static void iwlagn_prepare_restart(struct iwl_priv *priv) |
2283 | { | |
2284 | struct iwl_rxon_context *ctx; | |
2285 | bool bt_full_concurrent; | |
2286 | u8 bt_ci_compliance; | |
2287 | u8 bt_load; | |
2288 | u8 bt_status; | |
207ecc5e | 2289 | bool bt_is_sco; |
e43e85c4 JB |
2290 | |
2291 | lockdep_assert_held(&priv->mutex); | |
2292 | ||
2293 | for_each_context(priv, ctx) | |
2294 | ctx->vif = NULL; | |
2295 | priv->is_open = 0; | |
2296 | ||
2297 | /* | |
2298 | * __iwl_down() will clear the BT status variables, | |
2299 | * which is correct, but when we restart we really | |
2300 | * want to keep them so restore them afterwards. | |
2301 | * | |
2302 | * The restart process will later pick them up and | |
2303 | * re-configure the hw when we reconfigure the BT | |
2304 | * command. | |
2305 | */ | |
2306 | bt_full_concurrent = priv->bt_full_concurrent; | |
2307 | bt_ci_compliance = priv->bt_ci_compliance; | |
2308 | bt_load = priv->bt_traffic_load; | |
2309 | bt_status = priv->bt_status; | |
207ecc5e | 2310 | bt_is_sco = priv->bt_is_sco; |
e43e85c4 JB |
2311 | |
2312 | __iwl_down(priv); | |
2313 | ||
2314 | priv->bt_full_concurrent = bt_full_concurrent; | |
2315 | priv->bt_ci_compliance = bt_ci_compliance; | |
2316 | priv->bt_traffic_load = bt_load; | |
2317 | priv->bt_status = bt_status; | |
207ecc5e | 2318 | priv->bt_is_sco = bt_is_sco; |
e43e85c4 JB |
2319 | } |
2320 | ||
5b9f8cd3 | 2321 | static void iwl_bg_restart(struct work_struct *data) |
b481de9c | 2322 | { |
c79dd5b5 | 2323 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
2324 | |
2325 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2326 | return; | |
2327 | ||
19cc1087 JB |
2328 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
2329 | mutex_lock(&priv->mutex); | |
e43e85c4 | 2330 | iwlagn_prepare_restart(priv); |
19cc1087 | 2331 | mutex_unlock(&priv->mutex); |
a1174138 | 2332 | iwl_cancel_deferred_work(priv); |
19cc1087 JB |
2333 | ieee80211_restart_hw(priv->hw); |
2334 | } else { | |
ca7966c8 | 2335 | WARN_ON(1); |
19cc1087 | 2336 | } |
b481de9c ZY |
2337 | } |
2338 | ||
5b9f8cd3 | 2339 | static void iwl_bg_rx_replenish(struct work_struct *data) |
b481de9c | 2340 | { |
c79dd5b5 TW |
2341 | struct iwl_priv *priv = |
2342 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
2343 | |
2344 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2345 | return; | |
2346 | ||
2347 | mutex_lock(&priv->mutex); | |
54b81550 | 2348 | iwlagn_rx_replenish(priv); |
b481de9c ZY |
2349 | mutex_unlock(&priv->mutex); |
2350 | } | |
2351 | ||
266af4c7 JB |
2352 | static int iwl_mac_offchannel_tx(struct ieee80211_hw *hw, struct sk_buff *skb, |
2353 | struct ieee80211_channel *chan, | |
2354 | enum nl80211_channel_type channel_type, | |
2355 | unsigned int wait) | |
2356 | { | |
2357 | struct iwl_priv *priv = hw->priv; | |
2358 | int ret; | |
2359 | ||
2360 | /* Not supported if we don't have PAN */ | |
2361 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) { | |
2362 | ret = -EOPNOTSUPP; | |
2363 | goto free; | |
2364 | } | |
2365 | ||
2366 | /* Not supported on pre-P2P firmware */ | |
2367 | if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes & | |
2368 | BIT(NL80211_IFTYPE_P2P_CLIENT))) { | |
2369 | ret = -EOPNOTSUPP; | |
2370 | goto free; | |
2371 | } | |
2372 | ||
2373 | mutex_lock(&priv->mutex); | |
2374 | ||
2375 | if (!priv->contexts[IWL_RXON_CTX_PAN].is_active) { | |
2376 | /* | |
2377 | * If the PAN context is free, use the normal | |
2378 | * way of doing remain-on-channel offload + TX. | |
2379 | */ | |
2380 | ret = 1; | |
2381 | goto out; | |
2382 | } | |
2383 | ||
2384 | /* TODO: queue up if scanning? */ | |
2385 | if (test_bit(STATUS_SCANNING, &priv->status) || | |
2386 | priv->_agn.offchan_tx_skb) { | |
2387 | ret = -EBUSY; | |
2388 | goto out; | |
2389 | } | |
2390 | ||
2391 | /* | |
2392 | * max_scan_ie_len doesn't include the blank SSID or the header, | |
2393 | * so need to add that again here. | |
2394 | */ | |
2395 | if (skb->len > hw->wiphy->max_scan_ie_len + 24 + 2) { | |
2396 | ret = -ENOBUFS; | |
2397 | goto out; | |
2398 | } | |
2399 | ||
2400 | priv->_agn.offchan_tx_skb = skb; | |
2401 | priv->_agn.offchan_tx_timeout = wait; | |
2402 | priv->_agn.offchan_tx_chan = chan; | |
2403 | ||
2404 | ret = iwl_scan_initiate(priv, priv->contexts[IWL_RXON_CTX_PAN].vif, | |
2405 | IWL_SCAN_OFFCH_TX, chan->band); | |
2406 | if (ret) | |
2407 | priv->_agn.offchan_tx_skb = NULL; | |
2408 | out: | |
2409 | mutex_unlock(&priv->mutex); | |
2410 | free: | |
2411 | if (ret < 0) | |
2412 | kfree_skb(skb); | |
2413 | ||
2414 | return ret; | |
2415 | } | |
2416 | ||
2417 | static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw *hw) | |
2418 | { | |
2419 | struct iwl_priv *priv = hw->priv; | |
2420 | int ret; | |
2421 | ||
2422 | mutex_lock(&priv->mutex); | |
2423 | ||
f8a22a2b DC |
2424 | if (!priv->_agn.offchan_tx_skb) { |
2425 | ret = -EINVAL; | |
2426 | goto unlock; | |
2427 | } | |
266af4c7 JB |
2428 | |
2429 | priv->_agn.offchan_tx_skb = NULL; | |
2430 | ||
2431 | ret = iwl_scan_cancel_timeout(priv, 200); | |
2432 | if (ret) | |
2433 | ret = -EIO; | |
f8a22a2b | 2434 | unlock: |
266af4c7 JB |
2435 | mutex_unlock(&priv->mutex); |
2436 | ||
2437 | return ret; | |
2438 | } | |
2439 | ||
b481de9c ZY |
2440 | /***************************************************************************** |
2441 | * | |
2442 | * mac80211 entry point functions | |
2443 | * | |
2444 | *****************************************************************************/ | |
2445 | ||
0fd09502 JB |
2446 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { |
2447 | { | |
2448 | .max = 1, | |
2449 | .types = BIT(NL80211_IFTYPE_STATION), | |
2450 | }, | |
2451 | { | |
2452 | .max = 1, | |
2453 | .types = BIT(NL80211_IFTYPE_AP), | |
2454 | }, | |
2455 | }; | |
2456 | ||
2457 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
2458 | { | |
2459 | .max = 2, | |
2460 | .types = BIT(NL80211_IFTYPE_STATION), | |
2461 | }, | |
2462 | }; | |
2463 | ||
2464 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
2465 | { | |
2466 | .max = 1, | |
2467 | .types = BIT(NL80211_IFTYPE_STATION), | |
2468 | }, | |
2469 | { | |
2470 | .max = 1, | |
2471 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
2472 | BIT(NL80211_IFTYPE_AP), | |
2473 | }, | |
2474 | }; | |
2475 | ||
2476 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
2477 | { | |
2478 | .max = 2, | |
2479 | .types = BIT(NL80211_IFTYPE_STATION), | |
2480 | }, | |
2481 | { | |
2482 | .max = 1, | |
2483 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
2484 | }, | |
2485 | }; | |
2486 | ||
2487 | static const struct ieee80211_iface_combination | |
2488 | iwlagn_iface_combinations_dualmode[] = { | |
2489 | { .num_different_channels = 1, | |
2490 | .max_interfaces = 2, | |
2491 | .beacon_int_infra_match = true, | |
2492 | .limits = iwlagn_sta_ap_limits, | |
2493 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
2494 | }, | |
2495 | { .num_different_channels = 1, | |
2496 | .max_interfaces = 2, | |
2497 | .limits = iwlagn_2sta_limits, | |
2498 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
2499 | }, | |
2500 | }; | |
2501 | ||
2502 | static const struct ieee80211_iface_combination | |
2503 | iwlagn_iface_combinations_p2p[] = { | |
2504 | { .num_different_channels = 1, | |
2505 | .max_interfaces = 2, | |
2506 | .beacon_int_infra_match = true, | |
2507 | .limits = iwlagn_p2p_sta_go_limits, | |
2508 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
2509 | }, | |
2510 | { .num_different_channels = 1, | |
2511 | .max_interfaces = 2, | |
2512 | .limits = iwlagn_p2p_2sta_limits, | |
2513 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
2514 | }, | |
2515 | }; | |
2516 | ||
f0b6e2e8 RC |
2517 | /* |
2518 | * Not a mac80211 entry point function, but it fits in with all the | |
2519 | * other mac80211 functions grouped here. | |
2520 | */ | |
dd7a2509 JB |
2521 | static int iwl_mac_setup_register(struct iwl_priv *priv, |
2522 | struct iwlagn_ucode_capabilities *capa) | |
f0b6e2e8 RC |
2523 | { |
2524 | int ret; | |
2525 | struct ieee80211_hw *hw = priv->hw; | |
d0fe478c JB |
2526 | struct iwl_rxon_context *ctx; |
2527 | ||
f0b6e2e8 RC |
2528 | hw->rate_control_algorithm = "iwl-agn-rs"; |
2529 | ||
2530 | /* Tell mac80211 our characteristics */ | |
2531 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
f0b6e2e8 | 2532 | IEEE80211_HW_AMPDU_AGGREGATION | |
2491fa42 | 2533 | IEEE80211_HW_NEED_DTIM_PERIOD | |
6fb5511a JB |
2534 | IEEE80211_HW_SPECTRUM_MGMT | |
2535 | IEEE80211_HW_REPORTS_TX_ACK_STATUS; | |
f0b6e2e8 | 2536 | |
9b768832 JB |
2537 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; |
2538 | ||
23c0fcc6 WYG |
2539 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | |
2540 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
f0b6e2e8 | 2541 | |
88950758 | 2542 | if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) |
ba37a3d0 JB |
2543 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
2544 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
2545 | ||
3997ff39 JB |
2546 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
2547 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
2548 | ||
8d9698b3 | 2549 | hw->sta_data_size = sizeof(struct iwl_station_priv); |
fd1af15d JB |
2550 | hw->vif_data_size = sizeof(struct iwl_vif_priv); |
2551 | ||
d0fe478c JB |
2552 | for_each_context(priv, ctx) { |
2553 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
2554 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
2555 | } | |
f0b6e2e8 | 2556 | |
0fd09502 JB |
2557 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
2558 | ||
f35490f9 | 2559 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { |
0fd09502 JB |
2560 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; |
2561 | hw->wiphy->n_iface_combinations = | |
2562 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
f35490f9 | 2563 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
0fd09502 JB |
2564 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode; |
2565 | hw->wiphy->n_iface_combinations = | |
2566 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
2567 | } | |
2568 | ||
9b9190d9 JB |
2569 | hw->wiphy->max_remain_on_channel_duration = 1000; |
2570 | ||
f6c8f152 | 2571 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | |
274102a8 JB |
2572 | WIPHY_FLAG_DISABLE_BEACON_HINTS | |
2573 | WIPHY_FLAG_IBSS_RSN; | |
f0b6e2e8 | 2574 | |
0172b029 WYG |
2575 | if (iwlagn_mod_params.power_save) |
2576 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
2577 | else | |
2578 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
f0b6e2e8 | 2579 | |
1382c71c | 2580 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
f0b6e2e8 | 2581 | /* we create the 802.11 header and a zero-length SSID element */ |
dd7a2509 | 2582 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; |
f0b6e2e8 RC |
2583 | |
2584 | /* Default value; 4 EDCA QOS priorities */ | |
2585 | hw->queues = 4; | |
2586 | ||
2587 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
2588 | ||
2589 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
2590 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
2591 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
2592 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
2593 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
2594 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
2595 | ||
5ed540ae WYG |
2596 | iwl_leds_init(priv); |
2597 | ||
f0b6e2e8 RC |
2598 | ret = ieee80211_register_hw(priv->hw); |
2599 | if (ret) { | |
2600 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
2601 | return ret; | |
2602 | } | |
2603 | priv->mac80211_registered = 1; | |
2604 | ||
2605 | return 0; | |
2606 | } | |
2607 | ||
2608 | ||
2dedbf58 | 2609 | static int iwlagn_mac_start(struct ieee80211_hw *hw) |
b481de9c | 2610 | { |
c79dd5b5 | 2611 | struct iwl_priv *priv = hw->priv; |
5a66926a | 2612 | int ret; |
b481de9c | 2613 | |
e1623446 | 2614 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
2615 | |
2616 | /* we should be verifying the device is ready to be opened */ | |
2617 | mutex_lock(&priv->mutex); | |
5b9f8cd3 | 2618 | ret = __iwl_up(priv); |
b481de9c | 2619 | mutex_unlock(&priv->mutex); |
e655b9f0 | 2620 | if (ret) |
6cd0b1cb | 2621 | return ret; |
e655b9f0 | 2622 | |
e1623446 | 2623 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); |
e655b9f0 | 2624 | |
ca7966c8 JB |
2625 | /* Now we should be done, and the READY bit should be set. */ |
2626 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) | |
2627 | ret = -EIO; | |
0a078ffa | 2628 | |
5ed540ae | 2629 | iwlagn_led_enable(priv); |
e932a609 | 2630 | |
0a078ffa | 2631 | priv->is_open = 1; |
e1623446 | 2632 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
2633 | return 0; |
2634 | } | |
2635 | ||
2dedbf58 | 2636 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 2637 | { |
c79dd5b5 | 2638 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2639 | |
e1623446 | 2640 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
948c171c | 2641 | |
19cc1087 | 2642 | if (!priv->is_open) |
e655b9f0 | 2643 | return; |
e655b9f0 | 2644 | |
b481de9c | 2645 | priv->is_open = 0; |
5a66926a | 2646 | |
5b9f8cd3 | 2647 | iwl_down(priv); |
5a66926a ZY |
2648 | |
2649 | flush_workqueue(priv->workqueue); | |
6cd0b1cb | 2650 | |
554d1d02 SG |
2651 | /* User space software may expect getting rfkill changes |
2652 | * even if interface is down */ | |
6cd0b1cb | 2653 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
554d1d02 | 2654 | iwl_enable_rfkill_int(priv); |
948c171c | 2655 | |
e1623446 | 2656 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
2657 | } |
2658 | ||
2dedbf58 | 2659 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 2660 | { |
c79dd5b5 | 2661 | struct iwl_priv *priv = hw->priv; |
b481de9c | 2662 | |
e1623446 | 2663 | IWL_DEBUG_MACDUMP(priv, "enter\n"); |
b481de9c | 2664 | |
e1623446 | 2665 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 2666 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 2667 | |
74bcdb33 | 2668 | if (iwlagn_tx_skb(priv, skb)) |
b481de9c ZY |
2669 | dev_kfree_skb_any(skb); |
2670 | ||
e1623446 | 2671 | IWL_DEBUG_MACDUMP(priv, "leave\n"); |
b481de9c ZY |
2672 | } |
2673 | ||
2dedbf58 JB |
2674 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
2675 | struct ieee80211_vif *vif, | |
2676 | struct ieee80211_key_conf *keyconf, | |
2677 | struct ieee80211_sta *sta, | |
2678 | u32 iv32, u16 *phase1key) | |
ab885f8c | 2679 | { |
9f58671e | 2680 | struct iwl_priv *priv = hw->priv; |
a194e324 JB |
2681 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
2682 | ||
e1623446 | 2683 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
ab885f8c | 2684 | |
a194e324 | 2685 | iwl_update_tkip_key(priv, vif_priv->ctx, keyconf, sta, |
b3fbdcf4 | 2686 | iv32, phase1key); |
ab885f8c | 2687 | |
e1623446 | 2688 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
ab885f8c EG |
2689 | } |
2690 | ||
2dedbf58 JB |
2691 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2692 | struct ieee80211_vif *vif, | |
2693 | struct ieee80211_sta *sta, | |
2694 | struct ieee80211_key_conf *key) | |
b481de9c | 2695 | { |
c79dd5b5 | 2696 | struct iwl_priv *priv = hw->priv; |
a194e324 | 2697 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
c10afb6e | 2698 | struct iwl_rxon_context *ctx = vif_priv->ctx; |
42986796 WT |
2699 | int ret; |
2700 | u8 sta_id; | |
2701 | bool is_default_wep_key = false; | |
b481de9c | 2702 | |
e1623446 | 2703 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 2704 | |
9d143e9a | 2705 | if (iwlagn_mod_params.sw_crypto) { |
e1623446 | 2706 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
b481de9c ZY |
2707 | return -EOPNOTSUPP; |
2708 | } | |
b481de9c | 2709 | |
274102a8 JB |
2710 | /* |
2711 | * To support IBSS RSN, don't program group keys in IBSS, the | |
2712 | * hardware will then not attempt to decrypt the frames. | |
2713 | */ | |
2714 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
2715 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) | |
2716 | return -EOPNOTSUPP; | |
2717 | ||
a194e324 | 2718 | sta_id = iwl_sta_id_or_broadcast(priv, vif_priv->ctx, sta); |
0af8bcae JB |
2719 | if (sta_id == IWL_INVALID_STATION) |
2720 | return -EINVAL; | |
b481de9c | 2721 | |
6974e363 | 2722 | mutex_lock(&priv->mutex); |
2a421b91 | 2723 | iwl_scan_cancel_timeout(priv, 100); |
6974e363 | 2724 | |
a90178fa JB |
2725 | /* |
2726 | * If we are getting WEP group key and we didn't receive any key mapping | |
6974e363 EG |
2727 | * so far, we are in legacy wep mode (group key only), otherwise we are |
2728 | * in 1X mode. | |
a90178fa JB |
2729 | * In legacy wep mode, we use another host command to the uCode. |
2730 | */ | |
97359d12 JB |
2731 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
2732 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && | |
54c8067a | 2733 | !sta) { |
6974e363 | 2734 | if (cmd == SET_KEY) |
c10afb6e | 2735 | is_default_wep_key = !ctx->key_mapping_keys; |
6974e363 | 2736 | else |
ccc038ab EG |
2737 | is_default_wep_key = |
2738 | (key->hw_key_idx == HW_KEY_DEFAULT); | |
6974e363 | 2739 | } |
052c4b9f | 2740 | |
b481de9c | 2741 | switch (cmd) { |
deb09c43 | 2742 | case SET_KEY: |
6974e363 | 2743 | if (is_default_wep_key) |
2995bafa | 2744 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); |
deb09c43 | 2745 | else |
a194e324 JB |
2746 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, |
2747 | key, sta_id); | |
deb09c43 | 2748 | |
e1623446 | 2749 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
b481de9c ZY |
2750 | break; |
2751 | case DISABLE_KEY: | |
6974e363 | 2752 | if (is_default_wep_key) |
c10afb6e | 2753 | ret = iwl_remove_default_wep_key(priv, ctx, key); |
deb09c43 | 2754 | else |
c10afb6e | 2755 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta_id); |
deb09c43 | 2756 | |
e1623446 | 2757 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
b481de9c ZY |
2758 | break; |
2759 | default: | |
deb09c43 | 2760 | ret = -EINVAL; |
b481de9c ZY |
2761 | } |
2762 | ||
72e15d71 | 2763 | mutex_unlock(&priv->mutex); |
e1623446 | 2764 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 2765 | |
deb09c43 | 2766 | return ret; |
b481de9c ZY |
2767 | } |
2768 | ||
2dedbf58 JB |
2769 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
2770 | struct ieee80211_vif *vif, | |
2771 | enum ieee80211_ampdu_mlme_action action, | |
2772 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
2773 | u8 buf_size) | |
d783b061 TW |
2774 | { |
2775 | struct iwl_priv *priv = hw->priv; | |
4620fefa | 2776 | int ret = -EINVAL; |
7b090687 | 2777 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; |
d783b061 | 2778 | |
e1623446 | 2779 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", |
e174961c | 2780 | sta->addr, tid); |
d783b061 | 2781 | |
88950758 | 2782 | if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)) |
d783b061 TW |
2783 | return -EACCES; |
2784 | ||
4620fefa JB |
2785 | mutex_lock(&priv->mutex); |
2786 | ||
d783b061 TW |
2787 | switch (action) { |
2788 | case IEEE80211_AMPDU_RX_START: | |
e1623446 | 2789 | IWL_DEBUG_HT(priv, "start Rx\n"); |
4620fefa JB |
2790 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); |
2791 | break; | |
d783b061 | 2792 | case IEEE80211_AMPDU_RX_STOP: |
e1623446 | 2793 | IWL_DEBUG_HT(priv, "stop Rx\n"); |
619753ff | 2794 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); |
5c2207c6 | 2795 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
4620fefa JB |
2796 | ret = 0; |
2797 | break; | |
d783b061 | 2798 | case IEEE80211_AMPDU_TX_START: |
e1623446 | 2799 | IWL_DEBUG_HT(priv, "start Tx\n"); |
619753ff | 2800 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); |
d5a0ffa3 WYG |
2801 | if (ret == 0) { |
2802 | priv->_agn.agg_tids_count++; | |
2803 | IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n", | |
2804 | priv->_agn.agg_tids_count); | |
2805 | } | |
4620fefa | 2806 | break; |
d783b061 | 2807 | case IEEE80211_AMPDU_TX_STOP: |
e1623446 | 2808 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
619753ff | 2809 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); |
d5a0ffa3 WYG |
2810 | if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) { |
2811 | priv->_agn.agg_tids_count--; | |
2812 | IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n", | |
2813 | priv->_agn.agg_tids_count); | |
2814 | } | |
5c2207c6 | 2815 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
4620fefa | 2816 | ret = 0; |
7cb1b088 WYG |
2817 | if (priv->cfg->ht_params && |
2818 | priv->cfg->ht_params->use_rts_for_aggregation) { | |
94597ab2 JB |
2819 | /* |
2820 | * switch off RTS/CTS if it was previously enabled | |
2821 | */ | |
94597ab2 JB |
2822 | sta_priv->lq_sta.lq.general_params.flags &= |
2823 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
7e6a5886 JB |
2824 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), |
2825 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
94597ab2 | 2826 | } |
4620fefa | 2827 | break; |
f0527971 | 2828 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
c8823ec1 JB |
2829 | buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); |
2830 | ||
2831 | iwlagn_txq_agg_queue_setup(priv, sta, tid, buf_size); | |
2832 | ||
7b090687 JB |
2833 | /* |
2834 | * If the limit is 0, then it wasn't initialised yet, | |
2835 | * use the default. We can do that since we take the | |
2836 | * minimum below, and we don't want to go above our | |
2837 | * default due to hardware restrictions. | |
2838 | */ | |
2839 | if (sta_priv->max_agg_bufsize == 0) | |
2840 | sta_priv->max_agg_bufsize = | |
2841 | LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
2842 | ||
2843 | /* | |
2844 | * Even though in theory the peer could have different | |
2845 | * aggregation reorder buffer sizes for different sessions, | |
2846 | * our ucode doesn't allow for that and has a global limit | |
2847 | * for each station. Therefore, use the minimum of all the | |
2848 | * aggregation sessions and our default value. | |
2849 | */ | |
2850 | sta_priv->max_agg_bufsize = | |
2851 | min(sta_priv->max_agg_bufsize, buf_size); | |
2852 | ||
7cb1b088 WYG |
2853 | if (priv->cfg->ht_params && |
2854 | priv->cfg->ht_params->use_rts_for_aggregation) { | |
cfecc6b4 WYG |
2855 | /* |
2856 | * switch to RTS/CTS if it is the prefer protection | |
2857 | * method for HT traffic | |
2858 | */ | |
94597ab2 JB |
2859 | |
2860 | sta_priv->lq_sta.lq.general_params.flags |= | |
2861 | LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
cfecc6b4 | 2862 | } |
7b090687 JB |
2863 | |
2864 | sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit = | |
2865 | sta_priv->max_agg_bufsize; | |
2866 | ||
2867 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
2868 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
5bc9890f WYG |
2869 | |
2870 | IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n", | |
2871 | sta->addr, tid); | |
cfecc6b4 | 2872 | ret = 0; |
d783b061 TW |
2873 | break; |
2874 | } | |
4620fefa JB |
2875 | mutex_unlock(&priv->mutex); |
2876 | ||
2877 | return ret; | |
d783b061 | 2878 | } |
9f58671e | 2879 | |
2dedbf58 JB |
2880 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, |
2881 | struct ieee80211_vif *vif, | |
2882 | struct ieee80211_sta *sta) | |
fe6b23dd RC |
2883 | { |
2884 | struct iwl_priv *priv = hw->priv; | |
2885 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
a194e324 | 2886 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
eafdfbd3 | 2887 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; |
fe6b23dd RC |
2888 | int ret; |
2889 | u8 sta_id; | |
2890 | ||
2891 | IWL_DEBUG_INFO(priv, "received request to add station %pM\n", | |
2892 | sta->addr); | |
da5ae1cf RC |
2893 | mutex_lock(&priv->mutex); |
2894 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", | |
2895 | sta->addr); | |
2896 | sta_priv->common.sta_id = IWL_INVALID_STATION; | |
fe6b23dd RC |
2897 | |
2898 | atomic_set(&sta_priv->pending_frames, 0); | |
2899 | if (vif->type == NL80211_IFTYPE_AP) | |
2900 | sta_priv->client = true; | |
2901 | ||
a194e324 | 2902 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, |
238d781d | 2903 | is_ap, sta, &sta_id); |
fe6b23dd RC |
2904 | if (ret) { |
2905 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
2906 | sta->addr, ret); | |
2907 | /* Should we return success if return code is EEXIST ? */ | |
da5ae1cf | 2908 | mutex_unlock(&priv->mutex); |
fe6b23dd RC |
2909 | return ret; |
2910 | } | |
2911 | ||
fd1af15d JB |
2912 | sta_priv->common.sta_id = sta_id; |
2913 | ||
fe6b23dd | 2914 | /* Initialize rate scaling */ |
91dd6c27 | 2915 | IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", |
fe6b23dd RC |
2916 | sta->addr); |
2917 | iwl_rs_rate_init(priv, sta, sta_id); | |
da5ae1cf | 2918 | mutex_unlock(&priv->mutex); |
fe6b23dd | 2919 | |
fd1af15d | 2920 | return 0; |
fe6b23dd RC |
2921 | } |
2922 | ||
2dedbf58 JB |
2923 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
2924 | struct ieee80211_channel_switch *ch_switch) | |
79d07325 WYG |
2925 | { |
2926 | struct iwl_priv *priv = hw->priv; | |
2927 | const struct iwl_channel_info *ch_info; | |
2928 | struct ieee80211_conf *conf = &hw->conf; | |
aa2dc6b5 | 2929 | struct ieee80211_channel *channel = ch_switch->channel; |
79d07325 | 2930 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
246ed355 JB |
2931 | /* |
2932 | * MULTI-FIXME | |
2933 | * When we add support for multiple interfaces, we need to | |
2934 | * revisit this. The channel switch command in the device | |
2935 | * only affects the BSS context, but what does that really | |
2936 | * mean? And what if we get a CSA on the second interface? | |
2937 | * This needs a lot of work. | |
2938 | */ | |
2939 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
79d07325 | 2940 | u16 ch; |
79d07325 WYG |
2941 | |
2942 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
2943 | ||
dc1a4068 SG |
2944 | mutex_lock(&priv->mutex); |
2945 | ||
79d07325 | 2946 | if (iwl_is_rfkill(priv)) |
dc1a4068 | 2947 | goto out; |
79d07325 WYG |
2948 | |
2949 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
6f213ff1 SG |
2950 | test_bit(STATUS_SCANNING, &priv->status) || |
2951 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
dc1a4068 | 2952 | goto out; |
79d07325 | 2953 | |
246ed355 | 2954 | if (!iwl_is_associated_ctx(ctx)) |
dc1a4068 | 2955 | goto out; |
79d07325 | 2956 | |
f973f87e SG |
2957 | if (!priv->cfg->ops->lib->set_channel_switch) |
2958 | goto out; | |
79d07325 | 2959 | |
f973f87e SG |
2960 | ch = channel->hw_value; |
2961 | if (le16_to_cpu(ctx->active.channel) == ch) | |
2962 | goto out; | |
2963 | ||
2964 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
2965 | if (!is_channel_valid(ch_info)) { | |
2966 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
2967 | goto out; | |
2968 | } | |
79d07325 | 2969 | |
f973f87e | 2970 | spin_lock_irq(&priv->lock); |
79d07325 | 2971 | |
f973f87e | 2972 | priv->current_ht_config.smps = conf->smps_mode; |
79d07325 | 2973 | |
f973f87e SG |
2974 | /* Configure HT40 channels */ |
2975 | ctx->ht.enabled = conf_is_ht(conf); | |
2976 | if (ctx->ht.enabled) { | |
2977 | if (conf_is_ht40_minus(conf)) { | |
2978 | ctx->ht.extension_chan_offset = | |
2979 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
2980 | ctx->ht.is_40mhz = true; | |
2981 | } else if (conf_is_ht40_plus(conf)) { | |
2982 | ctx->ht.extension_chan_offset = | |
2983 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
2984 | ctx->ht.is_40mhz = true; | |
2985 | } else { | |
2986 | ctx->ht.extension_chan_offset = | |
2987 | IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
2988 | ctx->ht.is_40mhz = false; | |
79d07325 | 2989 | } |
f973f87e SG |
2990 | } else |
2991 | ctx->ht.is_40mhz = false; | |
2992 | ||
2993 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
2994 | ctx->staging.flags = 0; | |
2995 | ||
2996 | iwl_set_rxon_channel(priv, channel, ctx); | |
2997 | iwl_set_rxon_ht(priv, ht_conf); | |
2998 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
2999 | ||
3000 | spin_unlock_irq(&priv->lock); | |
3001 | ||
3002 | iwl_set_rate(priv); | |
3003 | /* | |
3004 | * at this point, staging_rxon has the | |
3005 | * configuration for channel switch | |
3006 | */ | |
3007 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); | |
3008 | priv->switch_channel = cpu_to_le16(ch); | |
3009 | if (priv->cfg->ops->lib->set_channel_switch(priv, ch_switch)) { | |
3010 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); | |
3011 | priv->switch_channel = 0; | |
3012 | ieee80211_chswitch_done(ctx->vif, false); | |
79d07325 | 3013 | } |
f973f87e | 3014 | |
79d07325 WYG |
3015 | out: |
3016 | mutex_unlock(&priv->mutex); | |
79d07325 WYG |
3017 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
3018 | } | |
3019 | ||
2dedbf58 JB |
3020 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
3021 | unsigned int changed_flags, | |
3022 | unsigned int *total_flags, | |
3023 | u64 multicast) | |
8b8ab9d5 JB |
3024 | { |
3025 | struct iwl_priv *priv = hw->priv; | |
3026 | __le32 filter_or = 0, filter_nand = 0; | |
246ed355 | 3027 | struct iwl_rxon_context *ctx; |
8b8ab9d5 JB |
3028 | |
3029 | #define CHK(test, flag) do { \ | |
3030 | if (*total_flags & (test)) \ | |
3031 | filter_or |= (flag); \ | |
3032 | else \ | |
3033 | filter_nand |= (flag); \ | |
3034 | } while (0) | |
3035 | ||
3036 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
3037 | changed_flags, *total_flags); | |
3038 | ||
3039 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
bdb84fec JB |
3040 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ |
3041 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
8b8ab9d5 JB |
3042 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); |
3043 | ||
3044 | #undef CHK | |
3045 | ||
3046 | mutex_lock(&priv->mutex); | |
3047 | ||
246ed355 JB |
3048 | for_each_context(priv, ctx) { |
3049 | ctx->staging.filter_flags &= ~filter_nand; | |
3050 | ctx->staging.filter_flags |= filter_or; | |
749ff4ef SG |
3051 | |
3052 | /* | |
3053 | * Not committing directly because hardware can perform a scan, | |
3054 | * but we'll eventually commit the filter flags change anyway. | |
3055 | */ | |
246ed355 | 3056 | } |
8b8ab9d5 JB |
3057 | |
3058 | mutex_unlock(&priv->mutex); | |
3059 | ||
3060 | /* | |
3061 | * Receiving all multicast frames is always enabled by the | |
3062 | * default flags setup in iwl_connection_init_rx_config() | |
3063 | * since we currently do not support programming multicast | |
3064 | * filters into the device. | |
3065 | */ | |
3066 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
3067 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
3068 | } | |
3069 | ||
2dedbf58 | 3070 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) |
716c74b0 WYG |
3071 | { |
3072 | struct iwl_priv *priv = hw->priv; | |
3073 | ||
3074 | mutex_lock(&priv->mutex); | |
3075 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
3076 | ||
716c74b0 WYG |
3077 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
3078 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); | |
3079 | goto done; | |
3080 | } | |
3081 | if (iwl_is_rfkill(priv)) { | |
3082 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); | |
3083 | goto done; | |
3084 | } | |
3085 | ||
3086 | /* | |
3087 | * mac80211 will not push any more frames for transmit | |
3088 | * until the flush is completed | |
3089 | */ | |
3090 | if (drop) { | |
3091 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
c68744fb | 3092 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { |
716c74b0 WYG |
3093 | IWL_ERR(priv, "flush request fail\n"); |
3094 | goto done; | |
3095 | } | |
3096 | } | |
3097 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
3098 | iwlagn_wait_tx_queue_empty(priv); | |
3099 | done: | |
3100 | mutex_unlock(&priv->mutex); | |
3101 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
3102 | } | |
3103 | ||
9b9190d9 JB |
3104 | static void iwlagn_disable_roc(struct iwl_priv *priv) |
3105 | { | |
3106 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; | |
3107 | struct ieee80211_channel *chan = ACCESS_ONCE(priv->hw->conf.channel); | |
3108 | ||
3109 | lockdep_assert_held(&priv->mutex); | |
3110 | ||
3111 | if (!ctx->is_active) | |
3112 | return; | |
3113 | ||
3114 | ctx->staging.dev_type = RXON_DEV_TYPE_2STA; | |
3115 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
3116 | iwl_set_rxon_channel(priv, chan, ctx); | |
3117 | iwl_set_flags_for_band(priv, ctx, chan->band, NULL); | |
3118 | ||
3119 | priv->_agn.hw_roc_channel = NULL; | |
3120 | ||
805a3b81 | 3121 | iwlagn_commit_rxon(priv, ctx); |
9b9190d9 JB |
3122 | |
3123 | ctx->is_active = false; | |
3124 | } | |
3125 | ||
3126 | static void iwlagn_bg_roc_done(struct work_struct *work) | |
3127 | { | |
3128 | struct iwl_priv *priv = container_of(work, struct iwl_priv, | |
3129 | _agn.hw_roc_work.work); | |
3130 | ||
3131 | mutex_lock(&priv->mutex); | |
3132 | ieee80211_remain_on_channel_expired(priv->hw); | |
3133 | iwlagn_disable_roc(priv); | |
3134 | mutex_unlock(&priv->mutex); | |
3135 | } | |
3136 | ||
3137 | static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw, | |
3138 | struct ieee80211_channel *channel, | |
3139 | enum nl80211_channel_type channel_type, | |
3140 | int duration) | |
3141 | { | |
3142 | struct iwl_priv *priv = hw->priv; | |
3143 | int err = 0; | |
3144 | ||
3145 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
3146 | return -EOPNOTSUPP; | |
3147 | ||
3148 | if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes & | |
3149 | BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
3150 | return -EOPNOTSUPP; | |
3151 | ||
3152 | mutex_lock(&priv->mutex); | |
3153 | ||
3154 | if (priv->contexts[IWL_RXON_CTX_PAN].is_active || | |
3155 | test_bit(STATUS_SCAN_HW, &priv->status)) { | |
3156 | err = -EBUSY; | |
3157 | goto out; | |
3158 | } | |
3159 | ||
3160 | priv->contexts[IWL_RXON_CTX_PAN].is_active = true; | |
3161 | priv->_agn.hw_roc_channel = channel; | |
3162 | priv->_agn.hw_roc_chantype = channel_type; | |
3163 | priv->_agn.hw_roc_duration = DIV_ROUND_UP(duration * 1000, 1024); | |
805a3b81 | 3164 | iwlagn_commit_rxon(priv, &priv->contexts[IWL_RXON_CTX_PAN]); |
9b9190d9 JB |
3165 | queue_delayed_work(priv->workqueue, &priv->_agn.hw_roc_work, |
3166 | msecs_to_jiffies(duration + 20)); | |
3167 | ||
94073919 | 3168 | msleep(IWL_MIN_SLOT_TIME); /* TU is almost ms */ |
9b9190d9 JB |
3169 | ieee80211_ready_on_channel(priv->hw); |
3170 | ||
3171 | out: | |
3172 | mutex_unlock(&priv->mutex); | |
3173 | ||
3174 | return err; | |
3175 | } | |
3176 | ||
3177 | static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) | |
3178 | { | |
3179 | struct iwl_priv *priv = hw->priv; | |
3180 | ||
3181 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
3182 | return -EOPNOTSUPP; | |
3183 | ||
3184 | cancel_delayed_work_sync(&priv->_agn.hw_roc_work); | |
3185 | ||
3186 | mutex_lock(&priv->mutex); | |
3187 | iwlagn_disable_roc(priv); | |
3188 | mutex_unlock(&priv->mutex); | |
3189 | ||
3190 | return 0; | |
3191 | } | |
3192 | ||
b481de9c ZY |
3193 | /***************************************************************************** |
3194 | * | |
3195 | * driver setup and teardown | |
3196 | * | |
3197 | *****************************************************************************/ | |
3198 | ||
4e39317d | 3199 | static void iwl_setup_deferred_work(struct iwl_priv *priv) |
b481de9c | 3200 | { |
d21050c7 | 3201 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c ZY |
3202 | |
3203 | init_waitqueue_head(&priv->wait_command_queue); | |
3204 | ||
5b9f8cd3 EG |
3205 | INIT_WORK(&priv->restart, iwl_bg_restart); |
3206 | INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); | |
5b9f8cd3 | 3207 | INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); |
16e727e8 | 3208 | INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
65550636 | 3209 | INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); |
bee008b7 | 3210 | INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); |
fbba9410 | 3211 | INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); |
9b9190d9 | 3212 | INIT_DELAYED_WORK(&priv->_agn.hw_roc_work, iwlagn_bg_roc_done); |
2a421b91 | 3213 | |
2a421b91 | 3214 | iwl_setup_scan_deferred_work(priv); |
bb8c093b | 3215 | |
4e39317d EG |
3216 | if (priv->cfg->ops->lib->setup_deferred_work) |
3217 | priv->cfg->ops->lib->setup_deferred_work(priv); | |
3218 | ||
3219 | init_timer(&priv->statistics_periodic); | |
3220 | priv->statistics_periodic.data = (unsigned long)priv; | |
5b9f8cd3 | 3221 | priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
b481de9c | 3222 | |
a9e1cb6a WYG |
3223 | init_timer(&priv->ucode_trace); |
3224 | priv->ucode_trace.data = (unsigned long)priv; | |
3225 | priv->ucode_trace.function = iwl_bg_ucode_trace; | |
3226 | ||
22de94de SG |
3227 | init_timer(&priv->watchdog); |
3228 | priv->watchdog.data = (unsigned long)priv; | |
3229 | priv->watchdog.function = iwl_bg_watchdog; | |
b74e31a9 | 3230 | |
d6b80618 WYG |
3231 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) |
3232 | iwl_irq_tasklet, (unsigned long)priv); | |
b481de9c ZY |
3233 | } |
3234 | ||
4e39317d | 3235 | static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3236 | { |
4e39317d EG |
3237 | if (priv->cfg->ops->lib->cancel_deferred_work) |
3238 | priv->cfg->ops->lib->cancel_deferred_work(priv); | |
b481de9c | 3239 | |
815e629b | 3240 | cancel_work_sync(&priv->run_time_calib_work); |
b481de9c | 3241 | cancel_work_sync(&priv->beacon_update); |
e7e16b90 SG |
3242 | |
3243 | iwl_cancel_scan_deferred_work(priv); | |
3244 | ||
bee008b7 | 3245 | cancel_work_sync(&priv->bt_full_concurrency); |
fbba9410 | 3246 | cancel_work_sync(&priv->bt_runtime_config); |
e7e16b90 | 3247 | |
4e39317d | 3248 | del_timer_sync(&priv->statistics_periodic); |
a9e1cb6a | 3249 | del_timer_sync(&priv->ucode_trace); |
b481de9c ZY |
3250 | } |
3251 | ||
89f186a8 RC |
3252 | static void iwl_init_hw_rates(struct iwl_priv *priv, |
3253 | struct ieee80211_rate *rates) | |
3254 | { | |
3255 | int i; | |
3256 | ||
3257 | for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { | |
3258 | rates[i].bitrate = iwl_rates[i].ieee * 5; | |
3259 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
3260 | rates[i].hw_value_short = i; | |
3261 | rates[i].flags = 0; | |
3262 | if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { | |
3263 | /* | |
3264 | * If CCK != 1M then set short preamble rate flag. | |
3265 | */ | |
3266 | rates[i].flags |= | |
3267 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? | |
3268 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; | |
3269 | } | |
3270 | } | |
3271 | } | |
3272 | ||
3273 | static int iwl_init_drv(struct iwl_priv *priv) | |
3274 | { | |
3275 | int ret; | |
3276 | ||
89f186a8 RC |
3277 | spin_lock_init(&priv->sta_lock); |
3278 | spin_lock_init(&priv->hcmd_lock); | |
3279 | ||
89f186a8 RC |
3280 | mutex_init(&priv->mutex); |
3281 | ||
89f186a8 RC |
3282 | priv->ieee_channels = NULL; |
3283 | priv->ieee_rates = NULL; | |
3284 | priv->band = IEEE80211_BAND_2GHZ; | |
3285 | ||
3286 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
ba37a3d0 | 3287 | priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; |
a13d276f | 3288 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; |
d5a0ffa3 | 3289 | priv->_agn.agg_tids_count = 0; |
89f186a8 | 3290 | |
8a472da4 WYG |
3291 | /* initialize force reset */ |
3292 | priv->force_reset[IWL_RF_RESET].reset_duration = | |
3293 | IWL_DELAY_NEXT_FORCE_RF_RESET; | |
3294 | priv->force_reset[IWL_FW_RESET].reset_duration = | |
3295 | IWL_DELAY_NEXT_FORCE_FW_RELOAD; | |
89f186a8 | 3296 | |
410f2bb3 SG |
3297 | priv->rx_statistics_jiffies = jiffies; |
3298 | ||
89f186a8 | 3299 | /* Choose which receivers/antennas to use */ |
e3f10cea | 3300 | iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); |
89f186a8 RC |
3301 | |
3302 | iwl_init_scan_params(priv); | |
3303 | ||
22bf59a0 | 3304 | /* init bt coex */ |
7cb1b088 WYG |
3305 | if (priv->cfg->bt_params && |
3306 | priv->cfg->bt_params->advanced_bt_coexist) { | |
b6e116e8 WYG |
3307 | priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
3308 | priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; | |
3309 | priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; | |
22bf59a0 WYG |
3310 | priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; |
3311 | priv->bt_duration = BT_DURATION_LIMIT_DEF; | |
3312 | priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; | |
22bf59a0 WYG |
3313 | } |
3314 | ||
89f186a8 RC |
3315 | ret = iwl_init_channel_map(priv); |
3316 | if (ret) { | |
3317 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); | |
3318 | goto err; | |
3319 | } | |
3320 | ||
3321 | ret = iwlcore_init_geos(priv); | |
3322 | if (ret) { | |
3323 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
3324 | goto err_free_channel_map; | |
3325 | } | |
3326 | iwl_init_hw_rates(priv, priv->ieee_rates); | |
3327 | ||
3328 | return 0; | |
3329 | ||
3330 | err_free_channel_map: | |
3331 | iwl_free_channel_map(priv); | |
3332 | err: | |
3333 | return ret; | |
3334 | } | |
3335 | ||
3336 | static void iwl_uninit_drv(struct iwl_priv *priv) | |
3337 | { | |
3338 | iwl_calib_free_results(priv); | |
3339 | iwlcore_free_geos(priv); | |
3340 | iwl_free_channel_map(priv); | |
811ecc99 | 3341 | kfree(priv->scan_cmd); |
4ce7cc2b | 3342 | kfree(priv->beacon_cmd); |
89f186a8 RC |
3343 | } |
3344 | ||
3a3b14c2 | 3345 | static void iwl_mac_rssi_callback(struct ieee80211_hw *hw, |
207ecc5e MV |
3346 | enum ieee80211_rssi_event rssi_event) |
3347 | { | |
3348 | struct iwl_priv *priv = hw->priv; | |
3349 | ||
3350 | mutex_lock(&priv->mutex); | |
3351 | ||
3352 | if (priv->cfg->bt_params && | |
3353 | priv->cfg->bt_params->advanced_bt_coexist) { | |
3354 | if (rssi_event == RSSI_EVENT_LOW) | |
3355 | priv->bt_enable_pspoll = true; | |
3356 | else if (rssi_event == RSSI_EVENT_HIGH) | |
3357 | priv->bt_enable_pspoll = false; | |
3358 | ||
3359 | iwlagn_send_advance_bt_config(priv); | |
3360 | } else { | |
3361 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
3362 | "ignoring RSSI callback\n"); | |
3363 | } | |
3364 | ||
3365 | mutex_unlock(&priv->mutex); | |
3366 | } | |
3367 | ||
dc21b545 | 3368 | struct ieee80211_ops iwlagn_hw_ops = { |
2295c66b JB |
3369 | .tx = iwlagn_mac_tx, |
3370 | .start = iwlagn_mac_start, | |
3371 | .stop = iwlagn_mac_stop, | |
5b9f8cd3 EG |
3372 | .add_interface = iwl_mac_add_interface, |
3373 | .remove_interface = iwl_mac_remove_interface, | |
d4daaea6 | 3374 | .change_interface = iwl_mac_change_interface, |
2295c66b | 3375 | .config = iwlagn_mac_config, |
8b8ab9d5 | 3376 | .configure_filter = iwlagn_configure_filter, |
2295c66b JB |
3377 | .set_key = iwlagn_mac_set_key, |
3378 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
5b9f8cd3 | 3379 | .conf_tx = iwl_mac_conf_tx, |
2295c66b JB |
3380 | .bss_info_changed = iwlagn_bss_info_changed, |
3381 | .ampdu_action = iwlagn_mac_ampdu_action, | |
6ab10ff8 | 3382 | .hw_scan = iwl_mac_hw_scan, |
2295c66b | 3383 | .sta_notify = iwlagn_mac_sta_notify, |
fe6b23dd RC |
3384 | .sta_add = iwlagn_mac_sta_add, |
3385 | .sta_remove = iwl_mac_sta_remove, | |
2295c66b JB |
3386 | .channel_switch = iwlagn_mac_channel_switch, |
3387 | .flush = iwlagn_mac_flush, | |
a85d7cca | 3388 | .tx_last_beacon = iwl_mac_tx_last_beacon, |
9b9190d9 JB |
3389 | .remain_on_channel = iwl_mac_remain_on_channel, |
3390 | .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel, | |
266af4c7 JB |
3391 | .offchannel_tx = iwl_mac_offchannel_tx, |
3392 | .offchannel_tx_cancel_wait = iwl_mac_offchannel_tx_cancel_wait, | |
207ecc5e | 3393 | .rssi_callback = iwl_mac_rssi_callback, |
4613e72d | 3394 | CFG80211_TESTMODE_CMD(iwl_testmode_cmd) |
eb64dca0 | 3395 | CFG80211_TESTMODE_DUMP(iwl_testmode_dump) |
b481de9c ZY |
3396 | }; |
3397 | ||
e98a1302 | 3398 | static u32 iwl_hw_detect(struct iwl_priv *priv) |
3867fe04 | 3399 | { |
02a7fa00 | 3400 | return iwl_read32(priv, CSR_HW_REV); |
3867fe04 WYG |
3401 | } |
3402 | ||
07d4f1ad WYG |
3403 | static int iwl_set_hw_params(struct iwl_priv *priv) |
3404 | { | |
3405 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; | |
3406 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
9d143e9a | 3407 | if (iwlagn_mod_params.amsdu_size_8K) |
07d4f1ad WYG |
3408 | priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K); |
3409 | else | |
3410 | priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K); | |
3411 | ||
3412 | priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; | |
3413 | ||
9d143e9a | 3414 | if (iwlagn_mod_params.disable_11n) |
88950758 | 3415 | priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE; |
07d4f1ad WYG |
3416 | |
3417 | /* Device-specific setup */ | |
3418 | return priv->cfg->ops->lib->set_hw_params(priv); | |
3419 | } | |
3420 | ||
e72f368b JB |
3421 | static const u8 iwlagn_bss_ac_to_fifo[] = { |
3422 | IWL_TX_FIFO_VO, | |
3423 | IWL_TX_FIFO_VI, | |
3424 | IWL_TX_FIFO_BE, | |
3425 | IWL_TX_FIFO_BK, | |
3426 | }; | |
3427 | ||
3428 | static const u8 iwlagn_bss_ac_to_queue[] = { | |
3429 | 0, 1, 2, 3, | |
3430 | }; | |
3431 | ||
3432 | static const u8 iwlagn_pan_ac_to_fifo[] = { | |
3433 | IWL_TX_FIFO_VO_IPAN, | |
3434 | IWL_TX_FIFO_VI_IPAN, | |
3435 | IWL_TX_FIFO_BE_IPAN, | |
3436 | IWL_TX_FIFO_BK_IPAN, | |
3437 | }; | |
3438 | ||
3439 | static const u8 iwlagn_pan_ac_to_queue[] = { | |
3440 | 7, 6, 5, 4, | |
3441 | }; | |
3442 | ||
119ea186 WYG |
3443 | /* This function both allocates and initializes hw and priv. */ |
3444 | static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg) | |
3445 | { | |
3446 | struct iwl_priv *priv; | |
3447 | /* mac80211 allocates memory for this device instance, including | |
3448 | * space for this driver's private structure */ | |
3449 | struct ieee80211_hw *hw; | |
3450 | ||
3451 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops); | |
3452 | if (hw == NULL) { | |
3453 | pr_err("%s: Can not allocate network device\n", | |
3454 | cfg->name); | |
3455 | goto out; | |
3456 | } | |
3457 | ||
3458 | priv = hw->priv; | |
3459 | priv->hw = hw; | |
3460 | ||
3461 | out: | |
3462 | return hw; | |
3463 | } | |
3464 | ||
b2ea345e | 3465 | static void iwl_init_context(struct iwl_priv *priv) |
b481de9c | 3466 | { |
b2ea345e | 3467 | int i; |
1d0a082d | 3468 | |
246ed355 JB |
3469 | /* |
3470 | * The default context is always valid, | |
3471 | * more may be discovered when firmware | |
3472 | * is loaded. | |
3473 | */ | |
3474 | priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); | |
3475 | ||
3476 | for (i = 0; i < NUM_IWL_RXON_CTX; i++) | |
3477 | priv->contexts[i].ctxid = i; | |
3478 | ||
763cc3bf JB |
3479 | priv->contexts[IWL_RXON_CTX_BSS].always_active = true; |
3480 | priv->contexts[IWL_RXON_CTX_BSS].is_active = true; | |
8f2d3d2a JB |
3481 | priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; |
3482 | priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; | |
3483 | priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; | |
8dfdb9d5 | 3484 | priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; |
2995bafa | 3485 | priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; |
c10afb6e | 3486 | priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; |
e72f368b JB |
3487 | priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo; |
3488 | priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue; | |
d0fe478c JB |
3489 | priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = |
3490 | BIT(NL80211_IFTYPE_ADHOC); | |
3491 | priv->contexts[IWL_RXON_CTX_BSS].interface_modes = | |
3492 | BIT(NL80211_IFTYPE_STATION); | |
2295c66b | 3493 | priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; |
d0fe478c JB |
3494 | priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; |
3495 | priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; | |
3496 | priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; | |
ece9c4ee JB |
3497 | |
3498 | priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; | |
b2ea345e WYG |
3499 | priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = |
3500 | REPLY_WIPAN_RXON_TIMING; | |
3501 | priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = | |
3502 | REPLY_WIPAN_RXON_ASSOC; | |
ece9c4ee JB |
3503 | priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; |
3504 | priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; | |
3505 | priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; | |
3506 | priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; | |
3507 | priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; | |
e72f368b JB |
3508 | priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo; |
3509 | priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue; | |
3510 | priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE; | |
d0fe478c JB |
3511 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes = |
3512 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); | |
f35c0c56 WYG |
3513 | #ifdef CONFIG_IWL_P2P |
3514 | priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= | |
3515 | BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO); | |
3516 | #endif | |
d0fe478c JB |
3517 | priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; |
3518 | priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; | |
3519 | priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; | |
ece9c4ee JB |
3520 | |
3521 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
b2ea345e WYG |
3522 | } |
3523 | ||
a48709c5 EG |
3524 | int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, |
3525 | struct iwl_cfg *cfg) | |
b2ea345e WYG |
3526 | { |
3527 | int err = 0; | |
3528 | struct iwl_priv *priv; | |
3529 | struct ieee80211_hw *hw; | |
084dd791 | 3530 | u16 num_mac; |
b2ea345e WYG |
3531 | u32 hw_rev; |
3532 | ||
3533 | /************************ | |
3534 | * 1. Allocating HW data | |
3535 | ************************/ | |
b2ea345e WYG |
3536 | hw = iwl_alloc_all(cfg); |
3537 | if (!hw) { | |
3538 | err = -ENOMEM; | |
807caf26 EG |
3539 | goto out; |
3540 | } | |
3541 | ||
b2ea345e | 3542 | priv = hw->priv; |
a48709c5 EG |
3543 | |
3544 | priv->bus.priv = priv; | |
3545 | priv->bus.bus_specific = bus_specific; | |
3546 | priv->bus.ops = bus_ops; | |
705cd451 | 3547 | priv->bus.irq = priv->bus.ops->get_irq(&priv->bus); |
a48709c5 | 3548 | priv->bus.ops->set_drv_data(&priv->bus, priv); |
3599d39a | 3549 | priv->bus.dev = priv->bus.ops->get_dev(&priv->bus); |
a48709c5 | 3550 | |
c85eb619 EG |
3551 | iwl_trans_register(&priv->trans); |
3552 | ||
b2ea345e | 3553 | /* At this point both hw and priv are allocated. */ |
8f2d3d2a | 3554 | |
3599d39a | 3555 | SET_IEEE80211_DEV(hw, priv->bus.dev); |
b481de9c | 3556 | |
e1623446 | 3557 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
82b9a121 | 3558 | priv->cfg = cfg; |
40cefda9 | 3559 | priv->inta_mask = CSR_INI_SET_MASK; |
316c30d9 | 3560 | |
bee008b7 WYG |
3561 | /* is antenna coupling more than 35dB ? */ |
3562 | priv->bt_ant_couple_ok = | |
3563 | (iwlagn_ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? | |
3564 | true : false; | |
3565 | ||
9f28ebc3 | 3566 | /* enable/disable bt channel inhibition */ |
f37837c9 | 3567 | priv->bt_ch_announce = iwlagn_bt_ch_announce; |
9f28ebc3 WYG |
3568 | IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", |
3569 | (priv->bt_ch_announce) ? "On" : "Off"); | |
f37837c9 | 3570 | |
20594eb0 WYG |
3571 | if (iwl_alloc_traffic_mem(priv)) |
3572 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 3573 | |
316c30d9 | 3574 | |
731a29b7 | 3575 | /* these spin locks will be used in apm_ops.init and EEPROM access |
a8b50a0a MA |
3576 | * we should init now |
3577 | */ | |
3578 | spin_lock_init(&priv->reg_lock); | |
731a29b7 | 3579 | spin_lock_init(&priv->lock); |
4843b5a7 RC |
3580 | |
3581 | /* | |
3582 | * stop and reset the on-board processor just in case it is in a | |
3583 | * strange state ... like being left stranded by a primary kernel | |
3584 | * and this is now the kdump kernel trying to start up | |
3585 | */ | |
3586 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); | |
3587 | ||
084dd791 EG |
3588 | /*********************** |
3589 | * 3. Read REV register | |
3590 | ***********************/ | |
e98a1302 | 3591 | hw_rev = iwl_hw_detect(priv); |
c11362c0 | 3592 | IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
e98a1302 | 3593 | priv->cfg->name, hw_rev); |
316c30d9 | 3594 | |
4cd2bf76 | 3595 | if (iwl_prepare_card_hw(priv)) { |
bcd4fe2f | 3596 | err = -EIO; |
086ed117 | 3597 | IWL_WARN(priv, "Failed, HW not ready\n"); |
084dd791 | 3598 | goto out_free_traffic_mem; |
086ed117 MA |
3599 | } |
3600 | ||
91238714 TW |
3601 | /***************** |
3602 | * 4. Read EEPROM | |
3603 | *****************/ | |
316c30d9 | 3604 | /* Read the EEPROM */ |
e98a1302 | 3605 | err = iwl_eeprom_init(priv, hw_rev); |
316c30d9 | 3606 | if (err) { |
15b1687c | 3607 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
084dd791 | 3608 | goto out_free_traffic_mem; |
316c30d9 | 3609 | } |
8614f360 TW |
3610 | err = iwl_eeprom_check_version(priv); |
3611 | if (err) | |
c8f16138 | 3612 | goto out_free_eeprom; |
8614f360 | 3613 | |
21a5b3c6 WYG |
3614 | err = iwl_eeprom_check_sku(priv); |
3615 | if (err) | |
3616 | goto out_free_eeprom; | |
3617 | ||
02883017 | 3618 | /* extract MAC Address */ |
c6fa17ed WYG |
3619 | iwl_eeprom_get_mac(priv, priv->addresses[0].addr); |
3620 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); | |
3621 | priv->hw->wiphy->addresses = priv->addresses; | |
3622 | priv->hw->wiphy->n_addresses = 1; | |
3623 | num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS); | |
3624 | if (num_mac > 1) { | |
3625 | memcpy(priv->addresses[1].addr, priv->addresses[0].addr, | |
3626 | ETH_ALEN); | |
3627 | priv->addresses[1].addr[5]++; | |
3628 | priv->hw->wiphy->n_addresses++; | |
3629 | } | |
316c30d9 | 3630 | |
b2ea345e WYG |
3631 | /* initialize all valid contexts */ |
3632 | iwl_init_context(priv); | |
3633 | ||
316c30d9 AK |
3634 | /************************ |
3635 | * 5. Setup HW constants | |
3636 | ************************/ | |
da154e30 | 3637 | if (iwl_set_hw_params(priv)) { |
084dd791 | 3638 | err = -ENOENT; |
15b1687c | 3639 | IWL_ERR(priv, "failed to set hw parameters\n"); |
073d3f5f | 3640 | goto out_free_eeprom; |
316c30d9 AK |
3641 | } |
3642 | ||
3643 | /******************* | |
6ba87956 | 3644 | * 6. Setup priv |
316c30d9 | 3645 | *******************/ |
b481de9c | 3646 | |
6ba87956 | 3647 | err = iwl_init_drv(priv); |
bf85ea4f | 3648 | if (err) |
399f4900 | 3649 | goto out_free_eeprom; |
bf85ea4f | 3650 | /* At this point both hw and priv are initialized. */ |
316c30d9 | 3651 | |
316c30d9 | 3652 | /******************** |
09f9bf79 | 3653 | * 7. Setup services |
316c30d9 | 3654 | ********************/ |
519d8abd | 3655 | iwl_alloc_isr_ict(priv); |
e39fdee1 | 3656 | |
705cd451 EG |
3657 | err = request_irq(priv->bus.irq, iwl_isr_ict, IRQF_SHARED, |
3658 | DRV_NAME, priv); | |
6cd0b1cb | 3659 | if (err) { |
705cd451 | 3660 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->bus.irq); |
084dd791 | 3661 | goto out_uninit_drv; |
6cd0b1cb | 3662 | } |
316c30d9 | 3663 | |
4e39317d | 3664 | iwl_setup_deferred_work(priv); |
653fa4a0 | 3665 | iwl_setup_rx_handlers(priv); |
4613e72d | 3666 | iwl_testmode_init(priv); |
316c30d9 | 3667 | |
158bea07 | 3668 | /********************************************* |
084dd791 | 3669 | * 8. Enable interrupts |
158bea07 | 3670 | *********************************************/ |
6ba87956 | 3671 | |
554d1d02 | 3672 | iwl_enable_rfkill_int(priv); |
6cd0b1cb | 3673 | |
6cd0b1cb HS |
3674 | /* If platform's RF_KILL switch is NOT set to KILL */ |
3675 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
3676 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3677 | else | |
3678 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6ba87956 | 3679 | |
a60e77e5 JB |
3680 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
3681 | test_bit(STATUS_RF_KILL_HW, &priv->status)); | |
6cd0b1cb | 3682 | |
58d0f361 | 3683 | iwl_power_initialize(priv); |
39b73fb1 | 3684 | iwl_tt_initialize(priv); |
158bea07 | 3685 | |
a15707d8 | 3686 | init_completion(&priv->_agn.firmware_loading_complete); |
562db532 | 3687 | |
b08dfd04 | 3688 | err = iwl_request_firmware(priv, true); |
158bea07 | 3689 | if (err) |
7d47618a | 3690 | goto out_destroy_workqueue; |
158bea07 | 3691 | |
b481de9c ZY |
3692 | return 0; |
3693 | ||
7d47618a | 3694 | out_destroy_workqueue: |
c8f16138 RC |
3695 | destroy_workqueue(priv->workqueue); |
3696 | priv->workqueue = NULL; | |
705cd451 | 3697 | free_irq(priv->bus.irq, priv); |
93cce6f0 | 3698 | iwl_free_isr_ict(priv); |
084dd791 | 3699 | out_uninit_drv: |
6ba87956 | 3700 | iwl_uninit_drv(priv); |
073d3f5f TW |
3701 | out_free_eeprom: |
3702 | iwl_eeprom_free(priv); | |
084dd791 | 3703 | out_free_traffic_mem: |
20594eb0 | 3704 | iwl_free_traffic_mem(priv); |
d7c76f4c | 3705 | ieee80211_free_hw(priv->hw); |
b481de9c ZY |
3706 | out: |
3707 | return err; | |
3708 | } | |
3709 | ||
a48709c5 | 3710 | void __devexit iwl_remove(struct iwl_priv * priv) |
b481de9c | 3711 | { |
0359facc | 3712 | unsigned long flags; |
b481de9c | 3713 | |
a15707d8 | 3714 | wait_for_completion(&priv->_agn.firmware_loading_complete); |
562db532 | 3715 | |
e1623446 | 3716 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 3717 | |
67249625 | 3718 | iwl_dbgfs_unregister(priv); |
3599d39a EG |
3719 | sysfs_remove_group(&priv->bus.dev->kobj, |
3720 | &iwl_attribute_group); | |
67249625 | 3721 | |
5b9f8cd3 EG |
3722 | /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
3723 | * to be called and iwl_down since we are removing the device | |
0b124c31 GG |
3724 | * we need to set STATUS_EXIT_PENDING bit. |
3725 | */ | |
3726 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
5ed540ae | 3727 | |
7a4e5281 | 3728 | iwl_testmode_cleanup(priv); |
5ed540ae WYG |
3729 | iwl_leds_exit(priv); |
3730 | ||
c4f55232 RR |
3731 | if (priv->mac80211_registered) { |
3732 | ieee80211_unregister_hw(priv->hw); | |
3733 | priv->mac80211_registered = 0; | |
3734 | } | |
3735 | ||
1a10f433 | 3736 | /* Reset to low power before unloading driver. */ |
14e8e4af | 3737 | iwl_apm_stop(priv); |
c166b25a | 3738 | |
39b73fb1 WYG |
3739 | iwl_tt_exit(priv); |
3740 | ||
0359facc MA |
3741 | /* make sure we flush any pending irq or |
3742 | * tasklet for the driver | |
3743 | */ | |
3744 | spin_lock_irqsave(&priv->lock, flags); | |
5b9f8cd3 | 3745 | iwl_disable_interrupts(priv); |
0359facc MA |
3746 | spin_unlock_irqrestore(&priv->lock, flags); |
3747 | ||
3748 | iwl_synchronize_irq(priv); | |
3749 | ||
3599d39a | 3750 | iwl_dealloc_ucode(priv); |
b481de9c | 3751 | |
bdfbf092 EG |
3752 | trans_rx_free(priv); |
3753 | trans_tx_free(priv); | |
b481de9c | 3754 | |
073d3f5f | 3755 | iwl_eeprom_free(priv); |
b481de9c | 3756 | |
b481de9c | 3757 | |
948c171c MA |
3758 | /*netif_stop_queue(dev); */ |
3759 | flush_workqueue(priv->workqueue); | |
3760 | ||
5b9f8cd3 | 3761 | /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
b481de9c ZY |
3762 | * priv->workqueue... so we can't take down the workqueue |
3763 | * until now... */ | |
3764 | destroy_workqueue(priv->workqueue); | |
3765 | priv->workqueue = NULL; | |
20594eb0 | 3766 | iwl_free_traffic_mem(priv); |
b481de9c | 3767 | |
705cd451 | 3768 | free_irq(priv->bus.irq, priv); |
a48709c5 | 3769 | priv->bus.ops->set_drv_data(&priv->bus, NULL); |
b481de9c | 3770 | |
6ba87956 | 3771 | iwl_uninit_drv(priv); |
b481de9c | 3772 | |
519d8abd | 3773 | iwl_free_isr_ict(priv); |
ef850d7c | 3774 | |
77834543 | 3775 | dev_kfree_skb(priv->beacon_skb); |
b481de9c ZY |
3776 | |
3777 | ieee80211_free_hw(priv->hw); | |
3778 | } | |
3779 | ||
b481de9c ZY |
3780 | |
3781 | /***************************************************************************** | |
3782 | * | |
3783 | * driver and module entry point | |
3784 | * | |
3785 | *****************************************************************************/ | |
5b9f8cd3 | 3786 | static int __init iwl_init(void) |
b481de9c ZY |
3787 | { |
3788 | ||
3789 | int ret; | |
c96c31e4 JP |
3790 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
3791 | pr_info(DRV_COPYRIGHT "\n"); | |
897e1cf2 | 3792 | |
e227ceac | 3793 | ret = iwlagn_rate_control_register(); |
897e1cf2 | 3794 | if (ret) { |
c96c31e4 | 3795 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
897e1cf2 RC |
3796 | return ret; |
3797 | } | |
3798 | ||
48d1a211 | 3799 | ret = iwl_pci_register_driver(); |
b481de9c | 3800 | |
48d1a211 EG |
3801 | if (ret) |
3802 | goto error_register; | |
b481de9c | 3803 | return ret; |
897e1cf2 | 3804 | |
897e1cf2 | 3805 | error_register: |
e227ceac | 3806 | iwlagn_rate_control_unregister(); |
897e1cf2 | 3807 | return ret; |
b481de9c ZY |
3808 | } |
3809 | ||
5b9f8cd3 | 3810 | static void __exit iwl_exit(void) |
b481de9c | 3811 | { |
48d1a211 | 3812 | iwl_pci_unregister_driver(); |
e227ceac | 3813 | iwlagn_rate_control_unregister(); |
b481de9c ZY |
3814 | } |
3815 | ||
5b9f8cd3 EG |
3816 | module_exit(iwl_exit); |
3817 | module_init(iwl_init); | |
a562a9dd RC |
3818 | |
3819 | #ifdef CONFIG_IWLWIFI_DEBUG | |
4e30cb69 | 3820 | module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); |
a562a9dd RC |
3821 | MODULE_PARM_DESC(debug, "debug output mask"); |
3822 | #endif | |
3823 | ||
2b068618 WYG |
3824 | module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); |
3825 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); | |
2b068618 WYG |
3826 | module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO); |
3827 | MODULE_PARM_DESC(queues_num, "number of hw queues."); | |
2b068618 WYG |
3828 | module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO); |
3829 | MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); | |
2b068618 WYG |
3830 | module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, |
3831 | int, S_IRUGO); | |
3832 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); | |
2b068618 WYG |
3833 | module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); |
3834 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); | |
dd7a2509 JB |
3835 | |
3836 | module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int, | |
3837 | S_IRUGO); | |
3838 | MODULE_PARM_DESC(ucode_alternative, | |
3839 | "specify ucode alternative to use from ucode file"); | |
bee008b7 WYG |
3840 | |
3841 | module_param_named(antenna_coupling, iwlagn_ant_coupling, int, S_IRUGO); | |
3842 | MODULE_PARM_DESC(antenna_coupling, | |
3843 | "specify antenna coupling in dB (defualt: 0 dB)"); | |
f37837c9 | 3844 | |
9f28ebc3 WYG |
3845 | module_param_named(bt_ch_inhibition, iwlagn_bt_ch_announce, bool, S_IRUGO); |
3846 | MODULE_PARM_DESC(bt_ch_inhibition, | |
3847 | "Disable BT channel inhibition (default: enable)"); | |
b7977ffa SG |
3848 | |
3849 | module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); | |
3850 | MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); | |
3851 | ||
3852 | module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); | |
3853 | MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); | |
b60eec9b | 3854 | |
300d0834 WYG |
3855 | module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO); |
3856 | MODULE_PARM_DESC(wd_disable, | |
3857 | "Disable stuck queue watchdog timer (default: 0 [enabled])"); | |
3858 | ||
b60eec9b WYG |
3859 | /* |
3860 | * set bt_coex_active to true, uCode will do kill/defer | |
3861 | * every time the priority line is asserted (BT is sending signals on the | |
3862 | * priority line in the PCIx). | |
3863 | * set bt_coex_active to false, uCode will ignore the BT activity and | |
3864 | * perform the normal operation | |
3865 | * | |
3866 | * User might experience transmit issue on some platform due to WiFi/BT | |
3867 | * co-exist problem. The possible behaviors are: | |
3868 | * Able to scan and finding all the available AP | |
3869 | * Not able to associate with any AP | |
3870 | * On those platforms, WiFi communication can be restored by set | |
3871 | * "bt_coex_active" module parameter to "false" | |
3872 | * | |
3873 | * default: bt_coex_active = true (BT_COEX_ENABLE) | |
3874 | */ | |
3875 | module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active, | |
3876 | bool, S_IRUGO); | |
3877 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); | |
6b0184c4 WYG |
3878 | |
3879 | module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO); | |
3880 | MODULE_PARM_DESC(led_mode, "0=system default, " | |
3881 | "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)"); | |
3f1e5f4a | 3882 | |
0172b029 WYG |
3883 | module_param_named(power_save, iwlagn_mod_params.power_save, |
3884 | bool, S_IRUGO); | |
3885 | MODULE_PARM_DESC(power_save, | |
3886 | "enable WiFi power management (default: disable)"); | |
3887 | ||
f7538168 WYG |
3888 | module_param_named(power_level, iwlagn_mod_params.power_level, |
3889 | int, S_IRUGO); | |
3890 | MODULE_PARM_DESC(power_level, | |
3891 | "default power save level (range from 1 - 5, default: 1)"); | |
3892 | ||
3f1e5f4a WYG |
3893 | /* |
3894 | * For now, keep using power level 1 instead of automatically | |
3895 | * adjusting ... | |
3896 | */ | |
3897 | module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust, | |
3898 | bool, S_IRUGO); | |
3899 | MODULE_PARM_DESC(no_sleep_autoadjust, | |
3900 | "don't automatically adjust sleep level " | |
3901 | "according to maximum network latency (default: true)"); |