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Merge branch 'linus' into timers/core
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / iwlwifi / dvm / lib.c
CommitLineData
e04ed0a5
WYG		 1/******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
128e63ef 5 * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved.
e04ed0a5
WYG		 6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
8d801080 29#include <linux/etherdevice.h>
e04ed0a5
WYG		 30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/init.h>
33#include <linux/sched.h>
dd551ab7 34#include <net/mac80211.h>
e04ed0a5 35
e04ed0a5 36#include "iwl-io.h"
e04ed0a5 37#include "iwl-agn-hw.h"
bdfbf092 38#include "iwl-trans.h"
65de7e84 39#include "iwl-modparams.h"
e04ed0a5 40
1023fdc4
JB		 41#include "dev.h"
42#include "agn.h"
43
e04ed0a5
WYG		 44int iwlagn_hw_valid_rtc_data_addr(u32 addr)
45{
46 return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) &&
47 (addr < IWLAGN_RTC_DATA_UPPER_BOUND);
48}
49
50int iwlagn_send_tx_power(struct iwl_priv *priv)
51{
ab63c68a 52 struct iwlagn_tx_power_dbm_cmd tx_power_cmd;
e04ed0a5
WYG		 53 u8 tx_ant_cfg_cmd;
54
83626404 55 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
4beeba7d
SG		 56 "TX Power requested while scanning!\n"))
57 return -EAGAIN;
58
e04ed0a5
WYG		 59 /* half dBm need to multiply */
60 tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);
61
b7998c8b 62 if (tx_power_cmd.global_lmt > priv->nvm_data->max_tx_pwr_half_dbm) {
e04ed0a5
WYG		 63 /*
64 * For the newer devices which using enhanced/extend tx power
65 * table in EEPROM, the format is in half dBm. driver need to
66 * convert to dBm format before report to mac80211.
67 * By doing so, there is a possibility of 1/2 dBm resolution
68 * lost. driver will perform "round-up" operation before
69 * reporting, but it will cause 1/2 dBm tx power over the
70 * regulatory limit. Perform the checking here, if the
71 * "tx_power_user_lmt" is higher than EEPROM value (in
72 * half-dBm format), lower the tx power based on EEPROM
73 */
26a7ca9a 74 tx_power_cmd.global_lmt =
b7998c8b 75 priv->nvm_data->max_tx_pwr_half_dbm;
e04ed0a5 76 }
ab63c68a
WYG		 77 tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED;
78 tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO;
e04ed0a5 79
0692fe41 80 if (IWL_UCODE_API(priv->fw->ucode_ver) == 1)
e04ed0a5
WYG		 81 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1;
82 else
83 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD;
84
e10a0533 85 return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, CMD_SYNC,
e419d62d 86 sizeof(tx_power_cmd), &tx_power_cmd);
e04ed0a5
WYG		 87}
88
89void iwlagn_temperature(struct iwl_priv *priv)
90{
4ff70fcd
JB		 91 lockdep_assert_held(&priv->statistics.lock);
92
f8f79a5d 93 /* store temperature from correct statistics (in Celsius) */
0da0e5bf 94 priv->temperature = le32_to_cpu(priv->statistics.common.temperature);
e04ed0a5
WYG		 95 iwl_tt_handler(priv);
96}
97
8d801080
WYG		 98int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
99{
100 int idx = 0;
101 int band_offset = 0;
102
103 /* HT rate format: mac80211 wants an MCS number, which is just LSB */
104 if (rate_n_flags & RATE_MCS_HT_MSK) {
105 idx = (rate_n_flags & 0xff);
106 return idx;
107 /* Legacy rate format, search for match in table */
108 } else {
109 if (band == IEEE80211_BAND_5GHZ)
110 band_offset = IWL_FIRST_OFDM_RATE;
111 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
112 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
113 return idx - band_offset;
114 }
115
116 return -1;
117}
118
1fa61b2e
JB		 119int iwlagn_manage_ibss_station(struct iwl_priv *priv,
120 struct ieee80211_vif *vif, bool add)
121{
fd1af15d
JB		 122 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
123
1fa61b2e 124 if (add)
a30e3112
JB		 125 return iwlagn_add_bssid_station(priv, vif_priv->ctx,
126 vif->bss_conf.bssid,
127 &vif_priv->ibss_bssid_sta_id);
fd1af15d
JB		 128 return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,
129 vif->bss_conf.bssid);
1fa61b2e 130}
1ff504e0 131
716c74b0
WYG		 132/**
133 * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode
134 *
135 * pre-requirements:
136 * 1. acquire mutex before calling
137 * 2. make sure rf is on and not in exit state
138 */
a4dece9a 139int iwlagn_txfifo_flush(struct iwl_priv *priv)
716c74b0
WYG		 140{
141 struct iwl_txfifo_flush_cmd flush_cmd;
142 struct iwl_host_cmd cmd = {
143 .id = REPLY_TXFIFO_FLUSH,
3fa50738 144 .len = { sizeof(struct iwl_txfifo_flush_cmd), },
716c74b0 145 .flags = CMD_SYNC,
3fa50738 146 .data = { &flush_cmd, },
716c74b0
WYG		 147 };
148
716c74b0 149 memset(&flush_cmd, 0, sizeof(flush_cmd));
a4dece9a
JB		 150
151 flush_cmd.queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |
152 IWL_SCD_BE_MSK | IWL_SCD_BK_MSK |
153 IWL_SCD_MGMT_MSK;
154 if ((priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)))
37c477dc 155 flush_cmd.queue_control |= IWL_PAN_SCD_VO_MSK |
a4dece9a
JB		 156 IWL_PAN_SCD_VI_MSK |
157 IWL_PAN_SCD_BE_MSK |
158 IWL_PAN_SCD_BK_MSK |
159 IWL_PAN_SCD_MGMT_MSK |
160 IWL_PAN_SCD_MULTICAST_MSK;
f88e0ecc 161
b7998c8b 162 if (priv->nvm_data->sku_cap_11n_enable)
37c477dc 163 flush_cmd.queue_control |= IWL_AGG_TX_QUEUE_MSK;
716c74b0 164
37c477dc
JB		 165 IWL_DEBUG_INFO(priv, "queue control: 0x%x\n",
166 flush_cmd.queue_control);
a4dece9a 167 flush_cmd.flush_control = cpu_to_le16(IWL_DROP_ALL);
716c74b0 168
e10a0533 169 return iwl_dvm_send_cmd(priv, &cmd);
716c74b0 170}
65550636 171
a4dece9a 172void iwlagn_dev_txfifo_flush(struct iwl_priv *priv)
65550636 173{
b1eea297 174 mutex_lock(&priv->mutex);
65550636 175 ieee80211_stop_queues(priv->hw);
a4dece9a 176 if (iwlagn_txfifo_flush(priv)) {
65550636
WYG		 177 IWL_ERR(priv, "flush request fail\n");
178 goto done;
179 }
180 IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n");
68e8dfda 181 iwl_trans_wait_tx_queue_empty(priv->trans);
65550636
WYG		 182done:
183 ieee80211_wake_queues(priv->hw);
b1eea297 184 mutex_unlock(&priv->mutex);
65550636 185}
b6e116e8
WYG		 186
187/*
188 * BT coex
189 */
4d5ba61c
WYG		 190/* Notmal TDM */
191static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
b6e116e8
WYG		 192 cpu_to_le32(0xaaaaaaaa),
193 cpu_to_le32(0xaaaaaaaa),
194 cpu_to_le32(0xaeaaaaaa),
195 cpu_to_le32(0xaaaaaaaa),
196 cpu_to_le32(0xcc00ff28),
197 cpu_to_le32(0x0000aaaa),
198 cpu_to_le32(0xcc00aaaa),
199 cpu_to_le32(0x0000aaaa),
200 cpu_to_le32(0xc0004000),
201 cpu_to_le32(0x00004000),
202 cpu_to_le32(0xf0005000),
9a67d761 203 cpu_to_le32(0xf0005000),
b6e116e8
WYG		 204};
205
4d5ba61c
WYG		 206
207/* Loose Coex */
208static const __le32 iwlagn_loose_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
209 cpu_to_le32(0xaaaaaaaa),
210 cpu_to_le32(0xaaaaaaaa),
211 cpu_to_le32(0xaeaaaaaa),
212 cpu_to_le32(0xaaaaaaaa),
213 cpu_to_le32(0xcc00ff28),
214 cpu_to_le32(0x0000aaaa),
215 cpu_to_le32(0xcc00aaaa),
216 cpu_to_le32(0x0000aaaa),
217 cpu_to_le32(0x00000000),
218 cpu_to_le32(0x00000000),
219 cpu_to_le32(0xf0005000),
220 cpu_to_le32(0xf0005000),
221};
222
223/* Full concurrency */
224static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
b6e116e8
WYG		 225 cpu_to_le32(0xaaaaaaaa),
226 cpu_to_le32(0xaaaaaaaa),
227 cpu_to_le32(0xaaaaaaaa),
228 cpu_to_le32(0xaaaaaaaa),
229 cpu_to_le32(0xaaaaaaaa),
230 cpu_to_le32(0xaaaaaaaa),
231 cpu_to_le32(0xaaaaaaaa),
232 cpu_to_le32(0xaaaaaaaa),
233 cpu_to_le32(0x00000000),
234 cpu_to_le32(0x00000000),
235 cpu_to_le32(0x00000000),
236 cpu_to_le32(0x00000000),
237};
238
239void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
240{
6013270a 241 struct iwl_basic_bt_cmd basic = {
b6e116e8
WYG		 242 .max_kill = IWLAGN_BT_MAX_KILL_DEFAULT,
243 .bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT,
244 .bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT,
245 .bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT,
246 };
8347deb3
WYG		 247 struct iwl_bt_cmd_v1 bt_cmd_v1;
248 struct iwl_bt_cmd_v2 bt_cmd_v2;
6013270a 249 int ret;
b6e116e8
WYG		 250
251 BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) !=
6013270a
WYG		 252 sizeof(basic.bt3_lookup_table));
253
2152268f 254 if (priv->cfg->bt_params) {
8347deb3
WYG		 255 /*
256 * newer generation of devices (2000 series and newer)
257 * use the version 2 of the bt command
258 * we need to make sure sending the host command
259 * with correct data structure to avoid uCode assert
260 */
2152268f 261 if (priv->cfg->bt_params->bt_session_2) {
8347deb3 262 bt_cmd_v2.prio_boost = cpu_to_le32(
2152268f 263 priv->cfg->bt_params->bt_prio_boost);
8347deb3
WYG		 264 bt_cmd_v2.tx_prio_boost = 0;
265 bt_cmd_v2.rx_prio_boost = 0;
6013270a 266 } else {
e911ede7
WYG		 267 /* older version only has 8 bits */
268 WARN_ON(priv->cfg->bt_params->bt_prio_boost & ~0xFF);
8347deb3 269 bt_cmd_v1.prio_boost =
2152268f 270 priv->cfg->bt_params->bt_prio_boost;
8347deb3
WYG		 271 bt_cmd_v1.tx_prio_boost = 0;
272 bt_cmd_v1.rx_prio_boost = 0;
6013270a
WYG		 273 }
274 } else {
275 IWL_ERR(priv, "failed to construct BT Coex Config\n");
276 return;
277 }
506aa156 278
83ce21de
WYG		 279 /*
280 * Possible situations when BT needs to take over for receive,
281 * at the same time where STA needs to response to AP's frame(s),
282 * reduce the tx power of the required response frames, by that,
283 * allow the concurrent BT receive & WiFi transmit
284 * (BT - ANT A, WiFi -ANT B), without interference to one another
285 *
286 * Reduced tx power apply to control frames only (ACK/Back/CTS)
287 * when indicated by the BT config command
288 */
6013270a
WYG		 289 basic.kill_ack_mask = priv->kill_ack_mask;
290 basic.kill_cts_mask = priv->kill_cts_mask;
83ce21de
WYG		 291 if (priv->reduced_txpower)
292 basic.reduce_txpower = IWLAGN_BT_REDUCED_TX_PWR;
6013270a 293 basic.valid = priv->bt_valid;
b6e116e8
WYG		 294
295 /*
296 * Configure BT coex mode to "no coexistence" when the
297 * user disabled BT coexistence, we have no interface
298 * (might be in monitor mode), or the interface is in
299 * IBSS mode (no proper uCode support for coex then).
300 */
65de7e84 301 if (!iwlwifi_mod_params.bt_coex_active ||
b60eec9b 302 priv->iw_mode == NL80211_IFTYPE_ADHOC) {
6013270a 303 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED;
b6e116e8 304 } else {
6013270a 305 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<
b6e116e8 306 IWLAGN_BT_FLAG_COEX_MODE_SHIFT;
207ecc5e
MV		 307
308 if (!priv->bt_enable_pspoll)
6013270a 309 basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
207ecc5e
MV		 310 else
311 basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
e366176e 312
b6e116e8 313 if (priv->bt_ch_announce)
6013270a 314 basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;
fa7f1413 315 IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags);
b6e116e8 316 }
6013270a 317 priv->bt_enable_flag = basic.flags;
b6e116e8 318 if (priv->bt_full_concurrent)
6013270a 319 memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup,
b6e116e8
WYG		 320 sizeof(iwlagn_concurrent_lookup));
321 else
6013270a 322 memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup,
b6e116e8
WYG		 323 sizeof(iwlagn_def_3w_lookup));
324
fa7f1413 325 IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n",
6013270a 326 basic.flags ? "active" : "disabled",
b6e116e8
WYG		 327 priv->bt_full_concurrent ?
328 "full concurrency" : "3-wire");
329
2152268f 330 if (priv->cfg->bt_params->bt_session_2) {
8347deb3 331 memcpy(&bt_cmd_v2.basic, &basic,
6013270a 332 sizeof(basic));
e10a0533 333 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
8347deb3 334 CMD_SYNC, sizeof(bt_cmd_v2), &bt_cmd_v2);
6013270a 335 } else {
8347deb3 336 memcpy(&bt_cmd_v1.basic, &basic,
6013270a 337 sizeof(basic));
e10a0533 338 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
8347deb3 339 CMD_SYNC, sizeof(bt_cmd_v1), &bt_cmd_v1);
6013270a
WYG		 340 }
341 if (ret)
b6e116e8
WYG		 342 IWL_ERR(priv, "failed to send BT Coex Config\n");
343
b6e116e8
WYG		 344}
345
207ecc5e
MV		 346void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
347{
348 struct iwl_rxon_context *ctx, *found_ctx = NULL;
349 bool found_ap = false;
350
b1eea297 351 lockdep_assert_held(&priv->mutex);
207ecc5e
MV		 352
353 /* Check whether AP or GO mode is active. */
354 if (rssi_ena) {
355 for_each_context(priv, ctx) {
356 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP &&
357 iwl_is_associated_ctx(ctx)) {
358 found_ap = true;
359 break;
360 }
361 }
362 }
363
364 /*
365 * If disable was received or If GO/AP mode, disable RSSI
366 * measurements.
367 */
368 if (!rssi_ena || found_ap) {
369 if (priv->cur_rssi_ctx) {
370 ctx = priv->cur_rssi_ctx;
371 ieee80211_disable_rssi_reports(ctx->vif);
372 priv->cur_rssi_ctx = NULL;
373 }
374 return;
375 }
376
377 /*
378 * If rssi measurements need to be enabled, consider all cases now.
379 * Figure out how many contexts are active.
380 */
381 for_each_context(priv, ctx) {
382 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION &&
383 iwl_is_associated_ctx(ctx)) {
384 found_ctx = ctx;
385 break;
386 }
387 }
388
389 /*
390 * rssi monitor already enabled for the correct interface...nothing
391 * to do.
392 */
393 if (found_ctx == priv->cur_rssi_ctx)
394 return;
395
396 /*
397 * Figure out if rssi monitor is currently enabled, and needs
398 * to be changed. If rssi monitor is already enabled, disable
399 * it first else just enable rssi measurements on the
400 * interface found above.
401 */
402 if (priv->cur_rssi_ctx) {
403 ctx = priv->cur_rssi_ctx;
404 if (ctx->vif)
405 ieee80211_disable_rssi_reports(ctx->vif);
406 }
407
408 priv->cur_rssi_ctx = found_ctx;
409
410 if (!found_ctx)
411 return;
412
413 ieee80211_enable_rssi_reports(found_ctx->vif,
414 IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD,
415 IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD);
416}
417
418static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
419{
420 return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >>
421 BT_UART_MSG_FRAME3SCOESCO_POS;
422}
423
b6e116e8
WYG		 424static void iwlagn_bt_traffic_change_work(struct work_struct *work)
425{
426 struct iwl_priv *priv =
427 container_of(work, struct iwl_priv, bt_traffic_change_work);
8bd413e6 428 struct iwl_rxon_context *ctx;
b6e116e8
WYG		 429 int smps_request = -1;
430
c4197c62
WYG		 431 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
432 /* bt coex disabled */
433 return;
434 }
435
5eda74a4
SG		 436 /*
437 * Note: bt_traffic_load can be overridden by scan complete and
438 * coex profile notifications. Ignore that since only bad consequence
439 * can be not matching debug print with actual state.
440 */
fa7f1413 441 IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n",
b6e116e8
WYG		 442 priv->bt_traffic_load);
443
444 switch (priv->bt_traffic_load) {
445 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
f5682c01
WYG		 446 if (priv->bt_status)
447 smps_request = IEEE80211_SMPS_DYNAMIC;
448 else
449 smps_request = IEEE80211_SMPS_AUTOMATIC;
b6e116e8
WYG		 450 break;
451 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
452 smps_request = IEEE80211_SMPS_DYNAMIC;
453 break;
454 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
455 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
456 smps_request = IEEE80211_SMPS_STATIC;
457 break;
458 default:
459 IWL_ERR(priv, "Invalid BT traffic load: %d\n",
460 priv->bt_traffic_load);
461 break;
462 }
463
b1eea297 464 mutex_lock(&priv->mutex);
b6e116e8 465
5eda74a4
SG		 466 /*
467 * We can not send command to firmware while scanning. When the scan
468 * complete we will schedule this work again. We do check with mutex
469 * locked to prevent new scan request to arrive. We do not check
470 * STATUS_SCANNING to avoid race when queue_work two times from
471 * different notifications, but quit and not perform any work at all.
472 */
83626404 473 if (test_bit(STATUS_SCAN_HW, &priv->status))
5eda74a4
SG		 474 goto out;
475
6b6db91c 476 iwl_update_chain_flags(priv);
b6e116e8 477
8bd413e6 478 if (smps_request != -1) {
88e9ba76 479 priv->current_ht_config.smps = smps_request;
8bd413e6
JB		 480 for_each_context(priv, ctx) {
481 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION)
482 ieee80211_request_smps(ctx->vif, smps_request);
483 }
484 }
207ecc5e
MV		 485
486 /*
487 * Dynamic PS poll related functionality. Adjust RSSI measurements if
488 * necessary.
489 */
490 iwlagn_bt_coex_rssi_monitor(priv);
5eda74a4 491out:
b1eea297 492 mutex_unlock(&priv->mutex);
b6e116e8
WYG		 493}
494
207ecc5e
MV		 495/*
496 * If BT sco traffic, and RSSI monitor is enabled, move measurements to the
497 * correct interface or disable it if this is the last interface to be
498 * removed.
499 */
500void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv)
501{
502 if (priv->bt_is_sco &&
503 priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS)
504 iwlagn_bt_adjust_rssi_monitor(priv, true);
505 else
506 iwlagn_bt_adjust_rssi_monitor(priv, false);
507}
508
b6e116e8
WYG		 509static void iwlagn_print_uartmsg(struct iwl_priv *priv,
510 struct iwl_bt_uart_msg *uart_msg)
511{
fa7f1413 512 IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, "
0ca24daf 513 "Update Req = 0x%X\n",
b6e116e8
WYG		 514 (BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >>
515 BT_UART_MSG_FRAME1MSGTYPE_POS,
516 (BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >>
517 BT_UART_MSG_FRAME1SSN_POS,
518 (BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >>
519 BT_UART_MSG_FRAME1UPDATEREQ_POS);
520
fa7f1413 521 IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, "
0ca24daf 522 "Chl_SeqN = 0x%X, In band = 0x%X\n",
b6e116e8
WYG		 523 (BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >>
524 BT_UART_MSG_FRAME2OPENCONNECTIONS_POS,
525 (BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >>
526 BT_UART_MSG_FRAME2TRAFFICLOAD_POS,
527 (BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >>
528 BT_UART_MSG_FRAME2CHLSEQN_POS,
529 (BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >>
530 BT_UART_MSG_FRAME2INBAND_POS);
531
fa7f1413 532 IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "
0ca24daf 533 "ACL = 0x%X, Master = 0x%X, OBEX = 0x%X\n",
b6e116e8
WYG		 534 (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
535 BT_UART_MSG_FRAME3SCOESCO_POS,
536 (BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >>
537 BT_UART_MSG_FRAME3SNIFF_POS,
538 (BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >>
539 BT_UART_MSG_FRAME3A2DP_POS,
540 (BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >>
541 BT_UART_MSG_FRAME3ACL_POS,
542 (BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >>
543 BT_UART_MSG_FRAME3MASTER_POS,
544 (BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >>
545 BT_UART_MSG_FRAME3OBEX_POS);
546
0ca24daf 547 IWL_DEBUG_COEX(priv, "Idle duration = 0x%X\n",
b6e116e8
WYG		 548 (BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >>
549 BT_UART_MSG_FRAME4IDLEDURATION_POS);
550
fa7f1413 551 IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "
0ca24daf 552 "eSCO Retransmissions = 0x%X\n",
b6e116e8
WYG		 553 (BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >>
554 BT_UART_MSG_FRAME5TXACTIVITY_POS,
555 (BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >>
556 BT_UART_MSG_FRAME5RXACTIVITY_POS,
557 (BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >>
558 BT_UART_MSG_FRAME5ESCORETRANSMIT_POS);
559
0ca24daf 560 IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X\n",
b6e116e8
WYG		 561 (BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >>
562 BT_UART_MSG_FRAME6SNIFFINTERVAL_POS,
563 (BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >>
564 BT_UART_MSG_FRAME6DISCOVERABLE_POS);
565
fa7f1413 566 IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = "
0ca24daf 567 "0x%X, Inquiry = 0x%X, Connectable = 0x%X\n",
b6e116e8
WYG		 568 (BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >>
569 BT_UART_MSG_FRAME7SNIFFACTIVITY_POS,
399f66fd
WYG		 570 (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >>
571 BT_UART_MSG_FRAME7PAGE_POS,
572 (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >>
573 BT_UART_MSG_FRAME7INQUIRY_POS,
b6e116e8
WYG		 574 (BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >>
575 BT_UART_MSG_FRAME7CONNECTABLE_POS);
576}
577
354ce4a4 578static bool iwlagn_set_kill_msk(struct iwl_priv *priv,
506aa156 579 struct iwl_bt_uart_msg *uart_msg)
b6e116e8 580{
354ce4a4 581 bool need_update = false;
9dc4ca92
WYG		 582 u8 kill_msk = IWL_BT_KILL_REDUCE;
583 static const __le32 bt_kill_ack_msg[3] = {
506aa156 584 IWLAGN_BT_KILL_ACK_MASK_DEFAULT,
9dc4ca92
WYG		 585 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,
586 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};
587 static const __le32 bt_kill_cts_msg[3] = {
506aa156 588 IWLAGN_BT_KILL_CTS_MASK_DEFAULT,
9dc4ca92
WYG		 589 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,
590 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};
506aa156 591
9dc4ca92
WYG		 592 if (!priv->reduced_txpower)
593 kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3)
594 ? IWL_BT_KILL_OVERRIDE : IWL_BT_KILL_DEFAULT;
506aa156
WYG		 595 if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] ||
596 priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) {
b6e116e8 597 priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK;
506aa156
WYG		 598 priv->kill_ack_mask = bt_kill_ack_msg[kill_msk];
599 priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK;
600 priv->kill_cts_mask = bt_kill_cts_msg[kill_msk];
354ce4a4
WYG		 601 need_update = true;
602 }
603 return need_update;
604}
506aa156 605
83ce21de
WYG		 606/*
607 * Upon RSSI changes, sends a bt config command with following changes
608 * 1. enable/disable "reduced control frames tx power
609 * 2. update the "kill)ack_mask" and "kill_cts_mask"
610 *
611 * If "reduced tx power" is enabled, uCode shall
612 * 1. ACK/Back/CTS rate shall reduced to 6Mbps
613 * 2. not use duplciate 20/40MHz mode
614 */
354ce4a4
WYG		 615static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv,
616 struct iwl_bt_uart_msg *uart_msg)
617{
618 bool need_update = false;
dd551ab7
WYG		 619 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
620 int ave_rssi;
621
e19ebcab
IP		 622 if (!ctx->vif || (ctx->vif->type != NL80211_IFTYPE_STATION)) {
623 IWL_DEBUG_INFO(priv, "BSS ctx not active or not in sta mode\n");
624 return false;
625 }
626
dd551ab7
WYG		 627 ave_rssi = ieee80211_ave_rssi(ctx->vif);
628 if (!ave_rssi) {
629 /* no rssi data, no changes to reduce tx power */
630 IWL_DEBUG_COEX(priv, "no rssi data available\n");
631 return need_update;
632 }
354ce4a4
WYG		 633 if (!priv->reduced_txpower &&
634 !iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&
dd551ab7 635 (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) &&
354ce4a4
WYG		 636 (uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
637 BT_UART_MSG_FRAME3OBEX_MSK)) &&
638 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
639 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) {
640 /* enabling reduced tx power */
641 priv->reduced_txpower = true;
642 priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;
643 need_update = true;
644 } else if (priv->reduced_txpower &&
645 (iwl_is_associated(priv, IWL_RXON_CTX_PAN) ||
dd551ab7 646 (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) ||
354ce4a4
WYG		 647 (uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
648 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) ||
649 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
650 BT_UART_MSG_FRAME3OBEX_MSK)))) {
651 /* disable reduced tx power */
652 priv->reduced_txpower = false;
f6be8b78 653 priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;
354ce4a4 654 need_update = true;
b6e116e8 655 }
354ce4a4
WYG		 656
657 return need_update;
b6e116e8
WYG		 658}
659
247c61d6 660int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
48a2d66f 661 struct iwl_rx_cmd_buffer *rxb,
247c61d6 662 struct iwl_device_cmd *cmd)
b6e116e8 663{
b6e116e8 664 struct iwl_rx_packet *pkt = rxb_addr(rxb);
f8d7c1a1 665 struct iwl_bt_coex_profile_notif *coex = (void *)pkt->data;
b6e116e8 666 struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;
b6e116e8 667
c4197c62
WYG		 668 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
669 /* bt coex disabled */
247c61d6 670 return 0;
c4197c62
WYG		 671 }
672
fa7f1413
WYG		 673 IWL_DEBUG_COEX(priv, "BT Coex notification:\n");
674 IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status);
675 IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load);
676 IWL_DEBUG_COEX(priv, " CI compliance: %d\n",
b6e116e8
WYG		 677 coex->bt_ci_compliance);
678 iwlagn_print_uartmsg(priv, uart_msg);
679
66e863a5 680 priv->last_bt_traffic_load = priv->bt_traffic_load;
207ecc5e
MV		 681 priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg);
682
b6e116e8
WYG		 683 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
684 if (priv->bt_status != coex->bt_status ||
66e863a5 685 priv->last_bt_traffic_load != coex->bt_traffic_load) {
b6e116e8
WYG		 686 if (coex->bt_status) {
687 /* BT on */
688 if (!priv->bt_ch_announce)
689 priv->bt_traffic_load =
690 IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
691 else
692 priv->bt_traffic_load =
693 coex->bt_traffic_load;
694 } else {
695 /* BT off */
696 priv->bt_traffic_load =
697 IWL_BT_COEX_TRAFFIC_LOAD_NONE;
698 }
699 priv->bt_status = coex->bt_status;
1ee158d8 700 queue_work(priv->workqueue,
b6e116e8
WYG		 701 &priv->bt_traffic_change_work);
702 }
b6e116e8
WYG		 703 }
704
354ce4a4 705 /* schedule to send runtime bt_config */
9dc4ca92
WYG		 706 /* check reduce power before change ack/cts kill mask */
707 if (iwlagn_fill_txpower_mode(priv, uart_msg) ||
708 iwlagn_set_kill_msk(priv, uart_msg))
354ce4a4
WYG		 709 queue_work(priv->workqueue, &priv->bt_runtime_config);
710
b6e116e8
WYG		 711
712 /* FIXME: based on notification, adjust the prio_boost */
713
b6e116e8 714 priv->bt_ci_compliance = coex->bt_ci_compliance;
247c61d6 715 return 0;
b6e116e8
WYG		 716}
717
718void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv)
719{
b6e116e8
WYG		 720 priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] =
721 iwlagn_bt_coex_profile_notif;
722}
723
724void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv)
725{
b6e116e8
WYG		 726 INIT_WORK(&priv->bt_traffic_change_work,
727 iwlagn_bt_traffic_change_work);
728}
729
730void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv)
731{
732 cancel_work_sync(&priv->bt_traffic_change_work);
733}
5de33068
JB		 734
735static bool is_single_rx_stream(struct iwl_priv *priv)
736{
737 return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
738 priv->current_ht_config.single_chain_sufficient;
739}
740
741#define IWL_NUM_RX_CHAINS_MULTIPLE 3
742#define IWL_NUM_RX_CHAINS_SINGLE 2
743#define IWL_NUM_IDLE_CHAINS_DUAL 2
744#define IWL_NUM_IDLE_CHAINS_SINGLE 1
745
746/*
747 * Determine how many receiver/antenna chains to use.
748 *
749 * More provides better reception via diversity. Fewer saves power
750 * at the expense of throughput, but only when not in powersave to
751 * start with.
752 *
753 * MIMO (dual stream) requires at least 2, but works better with 3.
754 * This does not determine *which* chains to use, just how many.
755 */
756static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
757{
2152268f
EG		 758 if (priv->cfg->bt_params &&
759 priv->cfg->bt_params->advanced_bt_coexist &&
5de33068
JB		 760 (priv->bt_full_concurrent ||
761 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
762 /*
763 * only use chain 'A' in bt high traffic load or
764 * full concurrency mode
765 */
766 return IWL_NUM_RX_CHAINS_SINGLE;
767 }
768 /* # of Rx chains to use when expecting MIMO. */
769 if (is_single_rx_stream(priv))
770 return IWL_NUM_RX_CHAINS_SINGLE;
771 else
772 return IWL_NUM_RX_CHAINS_MULTIPLE;
773}
774
775/*
776 * When we are in power saving mode, unless device support spatial
777 * multiplexing power save, use the active count for rx chain count.
778 */
779static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
780{
781 /* # Rx chains when idling, depending on SMPS mode */
782 switch (priv->current_ht_config.smps) {
783 case IEEE80211_SMPS_STATIC:
784 case IEEE80211_SMPS_DYNAMIC:
785 return IWL_NUM_IDLE_CHAINS_SINGLE;
b2ccccdc 786 case IEEE80211_SMPS_AUTOMATIC:
5de33068
JB		 787 case IEEE80211_SMPS_OFF:
788 return active_cnt;
789 default:
790 WARN(1, "invalid SMPS mode %d",
791 priv->current_ht_config.smps);
792 return active_cnt;
793 }
794}
795
796/* up to 4 chains */
797static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
798{
799 u8 res;
800 res = (chain_bitmap & BIT(0)) >> 0;
801 res += (chain_bitmap & BIT(1)) >> 1;
802 res += (chain_bitmap & BIT(2)) >> 2;
803 res += (chain_bitmap & BIT(3)) >> 3;
804 return res;
805}
806
807/**
808 * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
809 *
810 * Selects how many and which Rx receivers/antennas/chains to use.
811 * This should not be used for scan command ... it puts data in wrong place.
812 */
813void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
814{
815 bool is_single = is_single_rx_stream(priv);
47107e84 816 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
5de33068
JB		 817 u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
818 u32 active_chains;
819 u16 rx_chain;
820
821 /* Tell uCode which antennas are actually connected.
822 * Before first association, we assume all antennas are connected.
823 * Just after first association, iwl_chain_noise_calibration()
824 * checks which antennas actually *are* connected. */
825 if (priv->chain_noise_data.active_chains)
826 active_chains = priv->chain_noise_data.active_chains;
827 else
b7998c8b 828 active_chains = priv->nvm_data->valid_rx_ant;
5de33068 829
2152268f
EG		 830 if (priv->cfg->bt_params &&
831 priv->cfg->bt_params->advanced_bt_coexist &&
5de33068
JB		 832 (priv->bt_full_concurrent ||
833 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
834 /*
835 * only use chain 'A' in bt high traffic load or
836 * full concurrency mode
837 */
838 active_chains = first_antenna(active_chains);
839 }
840
841 rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
842
843 /* How many receivers should we use? */
844 active_rx_cnt = iwl_get_active_rx_chain_count(priv);
845 idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
846
847
848 /* correct rx chain count according hw settings
849 * and chain noise calibration
850 */
851 valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
852 if (valid_rx_cnt < active_rx_cnt)
853 active_rx_cnt = valid_rx_cnt;
854
855 if (valid_rx_cnt < idle_rx_cnt)
856 idle_rx_cnt = valid_rx_cnt;
857
858 rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
859 rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
860
861 ctx->staging.rx_chain = cpu_to_le16(rx_chain);
862
863 if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
864 ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
865 else
866 ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
867
868 IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
869 ctx->staging.rx_chain,
870 active_rx_cnt, idle_rx_cnt);
871
872 WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
873 active_rx_cnt < idle_rx_cnt);
874}
facd982e
JB		 875
876u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
877{
878 int i;
879 u8 ind = ant;
880
881 if (priv->band == IEEE80211_BAND_2GHZ &&
882 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
883 return 0;
884
885 for (i = 0; i < RATE_ANT_NUM - 1; i++) {
886 ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
887 if (valid & BIT(ind))
888 return ind;
889 }
890 return ant;
891}
fed73292 892
023ca58f
WYG		 893#ifdef CONFIG_PM_SLEEP
894static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
895{
896 int i;
897
898 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
899 out[i] = cpu_to_le16(p1k[i]);
900}
901
902struct wowlan_key_data {
903 struct iwl_rxon_context *ctx;
904 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
905 struct iwlagn_wowlan_tkip_params_cmd *tkip;
906 const u8 *bssid;
907 bool error, use_rsc_tsc, use_tkip;
908};
909
910
911static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
912 struct ieee80211_vif *vif,
913 struct ieee80211_sta *sta,
914 struct ieee80211_key_conf *key,
915 void *_data)
916{
d0f76d68 917 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
023ca58f
WYG		 918 struct wowlan_key_data *data = _data;
919 struct iwl_rxon_context *ctx = data->ctx;
920 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
921 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
922 struct iwlagn_p1k_cache *rx_p1ks;
923 u8 *rx_mic_key;
924 struct ieee80211_key_seq seq;
925 u32 cur_rx_iv32 = 0;
926 u16 p1k[IWLAGN_P1K_SIZE];
927 int ret, i;
928
b1eea297 929 mutex_lock(&priv->mutex);
023ca58f
WYG		 930
931 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
932 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
933 !sta && !ctx->key_mapping_keys)
934 ret = iwl_set_default_wep_key(priv, ctx, key);
935 else
936 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
937
938 if (ret) {
939 IWL_ERR(priv, "Error setting key during suspend!\n");
940 data->error = true;
941 }
942
943 switch (key->cipher) {
944 case WLAN_CIPHER_SUITE_TKIP:
945 if (sta) {
946 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
947 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
948
949 rx_p1ks = data->tkip->rx_uni;
950
951 ieee80211_get_key_tx_seq(key, &seq);
952 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
953 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
954
955 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
956 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
957
958 memcpy(data->tkip->mic_keys.tx,
959 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
960 IWLAGN_MIC_KEY_SIZE);
961
962 rx_mic_key = data->tkip->mic_keys.rx_unicast;
963 } else {
964 tkip_sc =
965 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
966 rx_p1ks = data->tkip->rx_multi;
967 rx_mic_key = data->tkip->mic_keys.rx_mcast;
968 }
969
970 /*
971 * For non-QoS this relies on the fact that both the uCode and
972 * mac80211 use TID 0 (as they need to to avoid replay attacks)
973 * for checking the IV in the frames.
974 */
975 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
976 ieee80211_get_key_rx_seq(key, i, &seq);
977 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
978 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
979 /* wrapping isn't allowed, AP must rekey */
980 if (seq.tkip.iv32 > cur_rx_iv32)
981 cur_rx_iv32 = seq.tkip.iv32;
982 }
983
984 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
985 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
986 ieee80211_get_tkip_rx_p1k(key, data->bssid,
987 cur_rx_iv32 + 1, p1k);
988 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
989
990 memcpy(rx_mic_key,
991 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
992 IWLAGN_MIC_KEY_SIZE);
993
994 data->use_tkip = true;
995 data->use_rsc_tsc = true;
996 break;
997 case WLAN_CIPHER_SUITE_CCMP:
998 if (sta) {
999 u8 *pn = seq.ccmp.pn;
1000
1001 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
1002 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
1003
1004 ieee80211_get_key_tx_seq(key, &seq);
1005 aes_tx_sc->pn = cpu_to_le64(
1006 (u64)pn[5] |
1007 ((u64)pn[4] << 8) |
1008 ((u64)pn[3] << 16) |
1009 ((u64)pn[2] << 24) |
1010 ((u64)pn[1] << 32) |
1011 ((u64)pn[0] << 40));
1012 } else
1013 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
1014
1015 /*
1016 * For non-QoS this relies on the fact that both the uCode and
1017 * mac80211 use TID 0 for checking the IV in the frames.
1018 */
1019 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1020 u8 *pn = seq.ccmp.pn;
1021
1022 ieee80211_get_key_rx_seq(key, i, &seq);
1023 aes_sc->pn = cpu_to_le64(
1024 (u64)pn[5] |
1025 ((u64)pn[4] << 8) |
1026 ((u64)pn[3] << 16) |
1027 ((u64)pn[2] << 24) |
1028 ((u64)pn[1] << 32) |
1029 ((u64)pn[0] << 40));
1030 }
1031 data->use_rsc_tsc = true;
1032 break;
1033 }
1034
b1eea297 1035 mutex_unlock(&priv->mutex);
023ca58f
WYG		 1036}
1037
1038int iwlagn_send_patterns(struct iwl_priv *priv,
1039 struct cfg80211_wowlan *wowlan)
1040{
1041 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1042 struct iwl_host_cmd cmd = {
1043 .id = REPLY_WOWLAN_PATTERNS,
1044 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1045 .flags = CMD_SYNC,
1046 };
1047 int i, err;
1048
1049 if (!wowlan->n_patterns)
1050 return 0;
1051
1052 cmd.len[0] = sizeof(*pattern_cmd) +
1053 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1054
1055 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1056 if (!pattern_cmd)
1057 return -ENOMEM;
1058
1059 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1060
1061 for (i = 0; i < wowlan->n_patterns; i++) {
1062 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1063
1064 memcpy(&pattern_cmd->patterns[i].mask,
1065 wowlan->patterns[i].mask, mask_len);
1066 memcpy(&pattern_cmd->patterns[i].pattern,
1067 wowlan->patterns[i].pattern,
1068 wowlan->patterns[i].pattern_len);
1069 pattern_cmd->patterns[i].mask_size = mask_len;
1070 pattern_cmd->patterns[i].pattern_size =
1071 wowlan->patterns[i].pattern_len;
1072 }
1073
1074 cmd.data[0] = pattern_cmd;
e10a0533 1075 err = iwl_dvm_send_cmd(priv, &cmd);
023ca58f
WYG		 1076 kfree(pattern_cmd);
1077 return err;
1078}
1079
ea886a60 1080int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan)
023ca58f
WYG		 1081{
1082 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
1083 struct iwl_rxon_cmd rxon;
1084 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1085 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
1086 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
1087 struct iwlagn_d3_config_cmd d3_cfg_cmd = {};
1088 struct wowlan_key_data key_data = {
1089 .ctx = ctx,
1090 .bssid = ctx->active.bssid_addr,
1091 .use_rsc_tsc = false,
1092 .tkip = &tkip_cmd,
1093 .use_tkip = false,
1094 };
1095 int ret, i;
1096 u16 seq;
1097
1098 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
1099 if (!key_data.rsc_tsc)
1100 return -ENOMEM;
1101
1102 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
1103
1104 /*
1105 * We know the last used seqno, and the uCode expects to know that
1106 * one, it will increment before TX.
1107 */
1108 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
1109 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
1110
1111 /*
1112 * For QoS counters, we store the one to use next, so subtract 0x10
1113 * since the uCode will add 0x10 before using the value.
1114 */
e0467a30 1115 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
04cf6824 1116 seq = priv->tid_data[IWL_AP_ID][i].seq_number;
023ca58f
WYG		 1117 seq -= 0x10;
1118 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
1119 }
1120
1121 if (wowlan->disconnect)
1122 wakeup_filter_cmd.enabled |=
1123 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
1124 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
1125 if (wowlan->magic_pkt)
1126 wakeup_filter_cmd.enabled |=
1127 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
1128 if (wowlan->gtk_rekey_failure)
1129 wakeup_filter_cmd.enabled |=
1130 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
1131 if (wowlan->eap_identity_req)
1132 wakeup_filter_cmd.enabled |=
1133 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
1134 if (wowlan->four_way_handshake)
1135 wakeup_filter_cmd.enabled |=
1136 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
1137 if (wowlan->n_patterns)
1138 wakeup_filter_cmd.enabled |=
1139 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
1140
1141 if (wowlan->rfkill_release)
1142 d3_cfg_cmd.wakeup_flags |=
1143 cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL);
1144
1145 iwl_scan_cancel_timeout(priv, 200);
1146
1147 memcpy(&rxon, &ctx->active, sizeof(rxon));
1148
8f7ffbe2 1149 priv->ucode_loaded = false;
68e8dfda 1150 iwl_trans_stop_device(priv->trans);
023ca58f 1151
15b86bff 1152 priv->wowlan = true;
023ca58f 1153
e1991885 1154 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
023ca58f
WYG		 1155 if (ret)
1156 goto out;
1157
1158 /* now configure WoWLAN ucode */
1159 ret = iwl_alive_start(priv);
1160 if (ret)
1161 goto out;
1162
1163 memcpy(&ctx->staging, &rxon, sizeof(rxon));
1164 ret = iwlagn_commit_rxon(priv, ctx);
1165 if (ret)
1166 goto out;
1167
1168 ret = iwl_power_update_mode(priv, true);
1169 if (ret)
1170 goto out;
1171
65de7e84 1172 if (!iwlwifi_mod_params.sw_crypto) {
023ca58f
WYG		 1173 /* mark all keys clear */
1174 priv->ucode_key_table = 0;
1175 ctx->key_mapping_keys = 0;
1176
1177 /*
1178 * This needs to be unlocked due to lock ordering
1179 * constraints. Since we're in the suspend path
1180 * that isn't really a problem though.
1181 */
b1eea297 1182 mutex_unlock(&priv->mutex);
023ca58f
WYG		 1183 ieee80211_iter_keys(priv->hw, ctx->vif,
1184 iwlagn_wowlan_program_keys,
1185 &key_data);
b1eea297 1186 mutex_lock(&priv->mutex);
023ca58f
WYG		 1187 if (key_data.error) {
1188 ret = -EIO;
1189 goto out;
1190 }
1191
1192 if (key_data.use_rsc_tsc) {
1193 struct iwl_host_cmd rsc_tsc_cmd = {
1194 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
1195 .flags = CMD_SYNC,
1196 .data[0] = key_data.rsc_tsc,
1197 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
182ada1c 1198 .len[0] = sizeof(*key_data.rsc_tsc),
023ca58f
WYG		 1199 };
1200
e10a0533 1201 ret = iwl_dvm_send_cmd(priv, &rsc_tsc_cmd);
023ca58f
WYG		 1202 if (ret)
1203 goto out;
1204 }
1205
1206 if (key_data.use_tkip) {
e10a0533 1207 ret = iwl_dvm_send_cmd_pdu(priv,
023ca58f
WYG		 1208 REPLY_WOWLAN_TKIP_PARAMS,
1209 CMD_SYNC, sizeof(tkip_cmd),
1210 &tkip_cmd);
1211 if (ret)
1212 goto out;
1213 }
1214
1215 if (priv->have_rekey_data) {
1216 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
1217 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
1218 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
1219 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
1220 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
1221 kek_kck_cmd.replay_ctr = priv->replay_ctr;
1222
e10a0533 1223 ret = iwl_dvm_send_cmd_pdu(priv,
023ca58f
WYG		 1224 REPLY_WOWLAN_KEK_KCK_MATERIAL,
1225 CMD_SYNC, sizeof(kek_kck_cmd),
1226 &kek_kck_cmd);
1227 if (ret)
1228 goto out;
1229 }
1230 }
1231
e10a0533 1232 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, CMD_SYNC,
023ca58f
WYG		 1233 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1234 if (ret)
1235 goto out;
1236
e10a0533 1237 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER,
023ca58f
WYG		 1238 CMD_SYNC, sizeof(wakeup_filter_cmd),
1239 &wakeup_filter_cmd);
1240 if (ret)
1241 goto out;
1242
1243 ret = iwlagn_send_patterns(priv, wowlan);
1244 out:
1245 kfree(key_data.rsc_tsc);
1246 return ret;
1247}
1248#endif
e10a0533
JB		 1249
1250int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
1251{
83626404 1252 if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) {
721c32f7 1253 IWL_WARN(priv, "Not sending command - %s KILL\n",
83626404 1254 iwl_is_rfkill(priv) ? "RF" : "CT");
721c32f7
JB		 1255 return -EIO;
1256 }
1257
17acd0b6
DF		 1258 if (test_bit(STATUS_FW_ERROR, &priv->status)) {
1259 IWL_ERR(priv, "Command %s failed: FW Error\n",
d9fb6465 1260 iwl_dvm_get_cmd_string(cmd->id));
17acd0b6
DF		 1261 return -EIO;
1262 }
1263
2d5d50ee
EG		 1264 /*
1265 * This can happen upon FW ASSERT: we clear the STATUS_FW_ERROR flag
1266 * in iwl_down but cancel the workers only later.
1267 */
1268 if (!priv->ucode_loaded) {
1269 IWL_ERR(priv, "Fw not loaded - dropping CMD: %x\n", cmd->id);
1270 return -EIO;
1271 }
1272
2cc39c94
JB		 1273 /*
1274 * Synchronous commands from this op-mode must hold
1275 * the mutex, this ensures we don't try to send two
1276 * (or more) synchronous commands at a time.
1277 */
f609607c 1278 if (!(cmd->flags & CMD_ASYNC))
b1eea297 1279 lockdep_assert_held(&priv->mutex);
2cc39c94 1280
947a9407
JB		 1281 if (priv->ucode_owner == IWL_OWNERSHIP_TM &&
1282 !(cmd->flags & CMD_ON_DEMAND)) {
1283 IWL_DEBUG_HC(priv, "tm own the uCode, no regular hcmd send\n");
1284 return -EIO;
1285 }
1286
68e8dfda 1287 return iwl_trans_send_cmd(priv->trans, cmd);
e10a0533
JB		 1288}
1289
1290int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id,
1291 u32 flags, u16 len, const void *data)
1292{
1293 struct iwl_host_cmd cmd = {
1294 .id = id,
1295 .len = { len, },
1296 .data = { data, },
1297 .flags = flags,
1298 };
1299
1300 return iwl_dvm_send_cmd(priv, &cmd);
1301}
kernel source for telekom puls (alcatel/mediatek)