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iwlwifi: add loose coex lut
[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / iwl-agn-lib.c
CommitLineData
e04ed0a5
WYG		 1/******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
fb4961db 5 * Copyright(c) 2008 - 2012 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>
34
35#include "iwl-dev.h"
e04ed0a5 36#include "iwl-io.h"
e04ed0a5
WYG		 37#include "iwl-agn-hw.h"
38#include "iwl-agn.h"
bdfbf092 39#include "iwl-trans.h"
65de7e84 40#include "iwl-modparams.h"
e04ed0a5 41
e04ed0a5
WYG		 42int iwlagn_hw_valid_rtc_data_addr(u32 addr)
43{
44 return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) &&
45 (addr < IWLAGN_RTC_DATA_UPPER_BOUND);
46}
47
48int iwlagn_send_tx_power(struct iwl_priv *priv)
49{
ab63c68a 50 struct iwlagn_tx_power_dbm_cmd tx_power_cmd;
e04ed0a5
WYG		 51 u8 tx_ant_cfg_cmd;
52
83626404 53 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
4beeba7d
SG		 54 "TX Power requested while scanning!\n"))
55 return -EAGAIN;
56
e04ed0a5
WYG		 57 /* half dBm need to multiply */
58 tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);
59
60 if (priv->tx_power_lmt_in_half_dbm &&
61 priv->tx_power_lmt_in_half_dbm < tx_power_cmd.global_lmt) {
62 /*
63 * For the newer devices which using enhanced/extend tx power
64 * table in EEPROM, the format is in half dBm. driver need to
65 * convert to dBm format before report to mac80211.
66 * By doing so, there is a possibility of 1/2 dBm resolution
67 * lost. driver will perform "round-up" operation before
68 * reporting, but it will cause 1/2 dBm tx power over the
69 * regulatory limit. Perform the checking here, if the
70 * "tx_power_user_lmt" is higher than EEPROM value (in
71 * half-dBm format), lower the tx power based on EEPROM
72 */
73 tx_power_cmd.global_lmt = priv->tx_power_lmt_in_half_dbm;
74 }
ab63c68a
WYG		 75 tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED;
76 tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO;
e04ed0a5 77
0692fe41 78 if (IWL_UCODE_API(priv->fw->ucode_ver) == 1)
e04ed0a5
WYG		 79 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1;
80 else
81 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD;
82
e10a0533 83 return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, CMD_SYNC,
e419d62d 84 sizeof(tx_power_cmd), &tx_power_cmd);
e04ed0a5
WYG		 85}
86
87void iwlagn_temperature(struct iwl_priv *priv)
88{
4ff70fcd
JB		 89 lockdep_assert_held(&priv->statistics.lock);
90
f8f79a5d 91 /* store temperature from correct statistics (in Celsius) */
0da0e5bf 92 priv->temperature = le32_to_cpu(priv->statistics.common.temperature);
e04ed0a5
WYG		 93 iwl_tt_handler(priv);
94}
95
8d801080
WYG		 96int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
97{
98 int idx = 0;
99 int band_offset = 0;
100
101 /* HT rate format: mac80211 wants an MCS number, which is just LSB */
102 if (rate_n_flags & RATE_MCS_HT_MSK) {
103 idx = (rate_n_flags & 0xff);
104 return idx;
105 /* Legacy rate format, search for match in table */
106 } else {
107 if (band == IEEE80211_BAND_5GHZ)
108 band_offset = IWL_FIRST_OFDM_RATE;
109 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
110 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
111 return idx - band_offset;
112 }
113
114 return -1;
115}
116
1fa61b2e
JB		 117int iwlagn_manage_ibss_station(struct iwl_priv *priv,
118 struct ieee80211_vif *vif, bool add)
119{
fd1af15d
JB		 120 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
121
1fa61b2e 122 if (add)
a30e3112
JB		 123 return iwlagn_add_bssid_station(priv, vif_priv->ctx,
124 vif->bss_conf.bssid,
125 &vif_priv->ibss_bssid_sta_id);
fd1af15d
JB		 126 return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,
127 vif->bss_conf.bssid);
1fa61b2e 128}
1ff504e0 129
716c74b0
WYG		 130/**
131 * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode
132 *
133 * pre-requirements:
134 * 1. acquire mutex before calling
135 * 2. make sure rf is on and not in exit state
136 */
137int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control)
138{
139 struct iwl_txfifo_flush_cmd flush_cmd;
140 struct iwl_host_cmd cmd = {
141 .id = REPLY_TXFIFO_FLUSH,
3fa50738 142 .len = { sizeof(struct iwl_txfifo_flush_cmd), },
716c74b0 143 .flags = CMD_SYNC,
3fa50738 144 .data = { &flush_cmd, },
716c74b0
WYG		 145 };
146
147 might_sleep();
148
149 memset(&flush_cmd, 0, sizeof(flush_cmd));
ecdbe86e
WYG		 150 if (flush_control & BIT(IWL_RXON_CTX_BSS))
151 flush_cmd.fifo_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |
f88e0ecc
WYG		 152 IWL_SCD_BE_MSK | IWL_SCD_BK_MSK |
153 IWL_SCD_MGMT_MSK;
ecdbe86e 154 if ((flush_control & BIT(IWL_RXON_CTX_PAN)) &&
a18f61bc 155 (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)))
f88e0ecc
WYG		 156 flush_cmd.fifo_control |= IWL_PAN_SCD_VO_MSK |
157 IWL_PAN_SCD_VI_MSK | IWL_PAN_SCD_BE_MSK |
158 IWL_PAN_SCD_BK_MSK | IWL_PAN_SCD_MGMT_MSK |
159 IWL_PAN_SCD_MULTICAST_MSK;
160
9e295116 161 if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)
716c74b0
WYG		 162 flush_cmd.fifo_control |= IWL_AGG_TX_QUEUE_MSK;
163
164 IWL_DEBUG_INFO(priv, "fifo queue control: 0X%x\n",
165 flush_cmd.fifo_control);
166 flush_cmd.flush_control = cpu_to_le16(flush_control);
167
e10a0533 168 return iwl_dvm_send_cmd(priv, &cmd);
716c74b0 169}
65550636
WYG		 170
171void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control)
172{
b1eea297 173 mutex_lock(&priv->mutex);
65550636 174 ieee80211_stop_queues(priv->hw);
c68744fb 175 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
65550636
WYG		 176 IWL_ERR(priv, "flush request fail\n");
177 goto done;
178 }
179 IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n");
68e8dfda 180 iwl_trans_wait_tx_queue_empty(priv->trans);
65550636
WYG		 181done:
182 ieee80211_wake_queues(priv->hw);
b1eea297 183 mutex_unlock(&priv->mutex);
65550636 184}
b6e116e8
WYG		 185
186/*
187 * BT coex
188 */
4d5ba61c
WYG		 189/* Notmal TDM */
190static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
b6e116e8
WYG		 191 cpu_to_le32(0xaaaaaaaa),
192 cpu_to_le32(0xaaaaaaaa),
193 cpu_to_le32(0xaeaaaaaa),
194 cpu_to_le32(0xaaaaaaaa),
195 cpu_to_le32(0xcc00ff28),
196 cpu_to_le32(0x0000aaaa),
197 cpu_to_le32(0xcc00aaaa),
198 cpu_to_le32(0x0000aaaa),
199 cpu_to_le32(0xc0004000),
200 cpu_to_le32(0x00004000),
201 cpu_to_le32(0xf0005000),
9a67d761 202 cpu_to_le32(0xf0005000),
b6e116e8
WYG		 203};
204
4d5ba61c
WYG		 205
206/* Loose Coex */
207static const __le32 iwlagn_loose_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
208 cpu_to_le32(0xaaaaaaaa),
209 cpu_to_le32(0xaaaaaaaa),
210 cpu_to_le32(0xaeaaaaaa),
211 cpu_to_le32(0xaaaaaaaa),
212 cpu_to_le32(0xcc00ff28),
213 cpu_to_le32(0x0000aaaa),
214 cpu_to_le32(0xcc00aaaa),
215 cpu_to_le32(0x0000aaaa),
216 cpu_to_le32(0x00000000),
217 cpu_to_le32(0x00000000),
218 cpu_to_le32(0xf0005000),
219 cpu_to_le32(0xf0005000),
220};
221
222/* Full concurrency */
223static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {
b6e116e8
WYG		 224 cpu_to_le32(0xaaaaaaaa),
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(0x00000000),
233 cpu_to_le32(0x00000000),
234 cpu_to_le32(0x00000000),
235 cpu_to_le32(0x00000000),
236};
237
238void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
239{
6013270a 240 struct iwl_basic_bt_cmd basic = {
b6e116e8
WYG		 241 .max_kill = IWLAGN_BT_MAX_KILL_DEFAULT,
242 .bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT,
243 .bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT,
244 .bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT,
245 };
8347deb3
WYG		 246 struct iwl_bt_cmd_v1 bt_cmd_v1;
247 struct iwl_bt_cmd_v2 bt_cmd_v2;
6013270a 248 int ret;
b6e116e8
WYG		 249
250 BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) !=
6013270a
WYG		 251 sizeof(basic.bt3_lookup_table));
252
2152268f 253 if (priv->cfg->bt_params) {
8347deb3
WYG		 254 /*
255 * newer generation of devices (2000 series and newer)
256 * use the version 2 of the bt command
257 * we need to make sure sending the host command
258 * with correct data structure to avoid uCode assert
259 */
2152268f 260 if (priv->cfg->bt_params->bt_session_2) {
8347deb3 261 bt_cmd_v2.prio_boost = cpu_to_le32(
2152268f 262 priv->cfg->bt_params->bt_prio_boost);
8347deb3
WYG		 263 bt_cmd_v2.tx_prio_boost = 0;
264 bt_cmd_v2.rx_prio_boost = 0;
6013270a 265 } else {
8347deb3 266 bt_cmd_v1.prio_boost =
2152268f 267 priv->cfg->bt_params->bt_prio_boost;
8347deb3
WYG		 268 bt_cmd_v1.tx_prio_boost = 0;
269 bt_cmd_v1.rx_prio_boost = 0;
6013270a
WYG		 270 }
271 } else {
272 IWL_ERR(priv, "failed to construct BT Coex Config\n");
273 return;
274 }
506aa156 275
6013270a
WYG		 276 basic.kill_ack_mask = priv->kill_ack_mask;
277 basic.kill_cts_mask = priv->kill_cts_mask;
310fbfd9 278 basic.reduce_txpower = priv->reduced_txpower;
6013270a 279 basic.valid = priv->bt_valid;
b6e116e8
WYG		 280
281 /*
282 * Configure BT coex mode to "no coexistence" when the
283 * user disabled BT coexistence, we have no interface
284 * (might be in monitor mode), or the interface is in
285 * IBSS mode (no proper uCode support for coex then).
286 */
65de7e84 287 if (!iwlwifi_mod_params.bt_coex_active ||
b60eec9b 288 priv->iw_mode == NL80211_IFTYPE_ADHOC) {
6013270a 289 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED;
b6e116e8 290 } else {
6013270a 291 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<
b6e116e8 292 IWLAGN_BT_FLAG_COEX_MODE_SHIFT;
207ecc5e
MV		 293
294 if (!priv->bt_enable_pspoll)
6013270a 295 basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
207ecc5e
MV		 296 else
297 basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
e366176e 298
b6e116e8 299 if (priv->bt_ch_announce)
6013270a 300 basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;
fa7f1413 301 IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags);
b6e116e8 302 }
6013270a 303 priv->bt_enable_flag = basic.flags;
b6e116e8 304 if (priv->bt_full_concurrent)
6013270a 305 memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup,
b6e116e8
WYG		 306 sizeof(iwlagn_concurrent_lookup));
307 else
6013270a 308 memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup,
b6e116e8
WYG		 309 sizeof(iwlagn_def_3w_lookup));
310
fa7f1413 311 IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n",
6013270a 312 basic.flags ? "active" : "disabled",
b6e116e8
WYG		 313 priv->bt_full_concurrent ?
314 "full concurrency" : "3-wire");
315
2152268f 316 if (priv->cfg->bt_params->bt_session_2) {
8347deb3 317 memcpy(&bt_cmd_v2.basic, &basic,
6013270a 318 sizeof(basic));
e10a0533 319 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
8347deb3 320 CMD_SYNC, sizeof(bt_cmd_v2), &bt_cmd_v2);
6013270a 321 } else {
8347deb3 322 memcpy(&bt_cmd_v1.basic, &basic,
6013270a 323 sizeof(basic));
e10a0533 324 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
8347deb3 325 CMD_SYNC, sizeof(bt_cmd_v1), &bt_cmd_v1);
6013270a
WYG		 326 }
327 if (ret)
b6e116e8
WYG		 328 IWL_ERR(priv, "failed to send BT Coex Config\n");
329
b6e116e8
WYG		 330}
331
207ecc5e
MV		 332void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
333{
334 struct iwl_rxon_context *ctx, *found_ctx = NULL;
335 bool found_ap = false;
336
b1eea297 337 lockdep_assert_held(&priv->mutex);
207ecc5e
MV		 338
339 /* Check whether AP or GO mode is active. */
340 if (rssi_ena) {
341 for_each_context(priv, ctx) {
342 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP &&
343 iwl_is_associated_ctx(ctx)) {
344 found_ap = true;
345 break;
346 }
347 }
348 }
349
350 /*
351 * If disable was received or If GO/AP mode, disable RSSI
352 * measurements.
353 */
354 if (!rssi_ena || found_ap) {
355 if (priv->cur_rssi_ctx) {
356 ctx = priv->cur_rssi_ctx;
357 ieee80211_disable_rssi_reports(ctx->vif);
358 priv->cur_rssi_ctx = NULL;
359 }
360 return;
361 }
362
363 /*
364 * If rssi measurements need to be enabled, consider all cases now.
365 * Figure out how many contexts are active.
366 */
367 for_each_context(priv, ctx) {
368 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION &&
369 iwl_is_associated_ctx(ctx)) {
370 found_ctx = ctx;
371 break;
372 }
373 }
374
375 /*
376 * rssi monitor already enabled for the correct interface...nothing
377 * to do.
378 */
379 if (found_ctx == priv->cur_rssi_ctx)
380 return;
381
382 /*
383 * Figure out if rssi monitor is currently enabled, and needs
384 * to be changed. If rssi monitor is already enabled, disable
385 * it first else just enable rssi measurements on the
386 * interface found above.
387 */
388 if (priv->cur_rssi_ctx) {
389 ctx = priv->cur_rssi_ctx;
390 if (ctx->vif)
391 ieee80211_disable_rssi_reports(ctx->vif);
392 }
393
394 priv->cur_rssi_ctx = found_ctx;
395
396 if (!found_ctx)
397 return;
398
399 ieee80211_enable_rssi_reports(found_ctx->vif,
400 IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD,
401 IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD);
402}
403
404static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
405{
406 return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >>
407 BT_UART_MSG_FRAME3SCOESCO_POS;
408}
409
b6e116e8
WYG		 410static void iwlagn_bt_traffic_change_work(struct work_struct *work)
411{
412 struct iwl_priv *priv =
413 container_of(work, struct iwl_priv, bt_traffic_change_work);
8bd413e6 414 struct iwl_rxon_context *ctx;
b6e116e8
WYG		 415 int smps_request = -1;
416
c4197c62
WYG		 417 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
418 /* bt coex disabled */
419 return;
420 }
421
5eda74a4
SG		 422 /*
423 * Note: bt_traffic_load can be overridden by scan complete and
424 * coex profile notifications. Ignore that since only bad consequence
425 * can be not matching debug print with actual state.
426 */
fa7f1413 427 IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n",
b6e116e8
WYG		 428 priv->bt_traffic_load);
429
430 switch (priv->bt_traffic_load) {
431 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
f5682c01
WYG		 432 if (priv->bt_status)
433 smps_request = IEEE80211_SMPS_DYNAMIC;
434 else
435 smps_request = IEEE80211_SMPS_AUTOMATIC;
b6e116e8
WYG		 436 break;
437 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
438 smps_request = IEEE80211_SMPS_DYNAMIC;
439 break;
440 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
441 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
442 smps_request = IEEE80211_SMPS_STATIC;
443 break;
444 default:
445 IWL_ERR(priv, "Invalid BT traffic load: %d\n",
446 priv->bt_traffic_load);
447 break;
448 }
449
b1eea297 450 mutex_lock(&priv->mutex);
b6e116e8 451
5eda74a4
SG		 452 /*
453 * We can not send command to firmware while scanning. When the scan
454 * complete we will schedule this work again. We do check with mutex
455 * locked to prevent new scan request to arrive. We do not check
456 * STATUS_SCANNING to avoid race when queue_work two times from
457 * different notifications, but quit and not perform any work at all.
458 */
83626404 459 if (test_bit(STATUS_SCAN_HW, &priv->status))
5eda74a4
SG		 460 goto out;
461
6b6db91c 462 iwl_update_chain_flags(priv);
b6e116e8 463
8bd413e6 464 if (smps_request != -1) {
88e9ba76 465 priv->current_ht_config.smps = smps_request;
8bd413e6
JB		 466 for_each_context(priv, ctx) {
467 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION)
468 ieee80211_request_smps(ctx->vif, smps_request);
469 }
470 }
207ecc5e
MV		 471
472 /*
473 * Dynamic PS poll related functionality. Adjust RSSI measurements if
474 * necessary.
475 */
476 iwlagn_bt_coex_rssi_monitor(priv);
5eda74a4 477out:
b1eea297 478 mutex_unlock(&priv->mutex);
b6e116e8
WYG		 479}
480
207ecc5e
MV		 481/*
482 * If BT sco traffic, and RSSI monitor is enabled, move measurements to the
483 * correct interface or disable it if this is the last interface to be
484 * removed.
485 */
486void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv)
487{
488 if (priv->bt_is_sco &&
489 priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS)
490 iwlagn_bt_adjust_rssi_monitor(priv, true);
491 else
492 iwlagn_bt_adjust_rssi_monitor(priv, false);
493}
494
b6e116e8
WYG		 495static void iwlagn_print_uartmsg(struct iwl_priv *priv,
496 struct iwl_bt_uart_msg *uart_msg)
497{
fa7f1413 498 IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, "
0ca24daf 499 "Update Req = 0x%X\n",
b6e116e8
WYG		 500 (BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >>
501 BT_UART_MSG_FRAME1MSGTYPE_POS,
502 (BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >>
503 BT_UART_MSG_FRAME1SSN_POS,
504 (BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >>
505 BT_UART_MSG_FRAME1UPDATEREQ_POS);
506
fa7f1413 507 IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, "
0ca24daf 508 "Chl_SeqN = 0x%X, In band = 0x%X\n",
b6e116e8
WYG		 509 (BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >>
510 BT_UART_MSG_FRAME2OPENCONNECTIONS_POS,
511 (BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >>
512 BT_UART_MSG_FRAME2TRAFFICLOAD_POS,
513 (BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >>
514 BT_UART_MSG_FRAME2CHLSEQN_POS,
515 (BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >>
516 BT_UART_MSG_FRAME2INBAND_POS);
517
fa7f1413 518 IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "
0ca24daf 519 "ACL = 0x%X, Master = 0x%X, OBEX = 0x%X\n",
b6e116e8
WYG		 520 (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
521 BT_UART_MSG_FRAME3SCOESCO_POS,
522 (BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >>
523 BT_UART_MSG_FRAME3SNIFF_POS,
524 (BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >>
525 BT_UART_MSG_FRAME3A2DP_POS,
526 (BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >>
527 BT_UART_MSG_FRAME3ACL_POS,
528 (BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >>
529 BT_UART_MSG_FRAME3MASTER_POS,
530 (BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >>
531 BT_UART_MSG_FRAME3OBEX_POS);
532
0ca24daf 533 IWL_DEBUG_COEX(priv, "Idle duration = 0x%X\n",
b6e116e8
WYG		 534 (BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >>
535 BT_UART_MSG_FRAME4IDLEDURATION_POS);
536
fa7f1413 537 IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "
0ca24daf 538 "eSCO Retransmissions = 0x%X\n",
b6e116e8
WYG		 539 (BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >>
540 BT_UART_MSG_FRAME5TXACTIVITY_POS,
541 (BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >>
542 BT_UART_MSG_FRAME5RXACTIVITY_POS,
543 (BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >>
544 BT_UART_MSG_FRAME5ESCORETRANSMIT_POS);
545
0ca24daf 546 IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X\n",
b6e116e8
WYG		 547 (BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >>
548 BT_UART_MSG_FRAME6SNIFFINTERVAL_POS,
549 (BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >>
550 BT_UART_MSG_FRAME6DISCOVERABLE_POS);
551
fa7f1413 552 IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = "
0ca24daf 553 "0x%X, Inquiry = 0x%X, Connectable = 0x%X\n",
b6e116e8
WYG		 554 (BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >>
555 BT_UART_MSG_FRAME7SNIFFACTIVITY_POS,
399f66fd
WYG		 556 (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >>
557 BT_UART_MSG_FRAME7PAGE_POS,
558 (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >>
559 BT_UART_MSG_FRAME7INQUIRY_POS,
b6e116e8
WYG		 560 (BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >>
561 BT_UART_MSG_FRAME7CONNECTABLE_POS);
562}
563
354ce4a4 564static bool iwlagn_set_kill_msk(struct iwl_priv *priv,
506aa156 565 struct iwl_bt_uart_msg *uart_msg)
b6e116e8 566{
354ce4a4 567 bool need_update = false;
9dc4ca92
WYG		 568 u8 kill_msk = IWL_BT_KILL_REDUCE;
569 static const __le32 bt_kill_ack_msg[3] = {
506aa156 570 IWLAGN_BT_KILL_ACK_MASK_DEFAULT,
9dc4ca92
WYG		 571 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,
572 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};
573 static const __le32 bt_kill_cts_msg[3] = {
506aa156 574 IWLAGN_BT_KILL_CTS_MASK_DEFAULT,
9dc4ca92
WYG		 575 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,
576 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};
506aa156 577
9dc4ca92
WYG		 578 if (!priv->reduced_txpower)
579 kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3)
580 ? IWL_BT_KILL_OVERRIDE : IWL_BT_KILL_DEFAULT;
506aa156
WYG		 581 if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] ||
582 priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) {
b6e116e8 583 priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK;
506aa156
WYG		 584 priv->kill_ack_mask = bt_kill_ack_msg[kill_msk];
585 priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK;
586 priv->kill_cts_mask = bt_kill_cts_msg[kill_msk];
354ce4a4
WYG		 587 need_update = true;
588 }
589 return need_update;
590}
506aa156 591
354ce4a4
WYG		 592static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv,
593 struct iwl_bt_uart_msg *uart_msg)
594{
595 bool need_update = false;
596
597 if (!priv->reduced_txpower &&
598 !iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&
599 (uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
600 BT_UART_MSG_FRAME3OBEX_MSK)) &&
601 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
602 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) {
603 /* enabling reduced tx power */
604 priv->reduced_txpower = true;
605 priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;
606 need_update = true;
607 } else if (priv->reduced_txpower &&
608 (iwl_is_associated(priv, IWL_RXON_CTX_PAN) ||
609 (uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
610 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) ||
611 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
612 BT_UART_MSG_FRAME3OBEX_MSK)))) {
613 /* disable reduced tx power */
614 priv->reduced_txpower = false;
615 priv->bt_valid &= ~IWLAGN_BT_VALID_REDUCED_TX_PWR;
616 need_update = true;
b6e116e8 617 }
354ce4a4
WYG		 618
619 return need_update;
b6e116e8
WYG		 620}
621
247c61d6 622int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
48a2d66f 623 struct iwl_rx_cmd_buffer *rxb,
247c61d6 624 struct iwl_device_cmd *cmd)
b6e116e8 625{
b6e116e8 626 struct iwl_rx_packet *pkt = rxb_addr(rxb);
f8d7c1a1 627 struct iwl_bt_coex_profile_notif *coex = (void *)pkt->data;
b6e116e8 628 struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;
b6e116e8 629
c4197c62
WYG		 630 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
631 /* bt coex disabled */
247c61d6 632 return 0;
c4197c62
WYG		 633 }
634
fa7f1413
WYG		 635 IWL_DEBUG_COEX(priv, "BT Coex notification:\n");
636 IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status);
637 IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load);
638 IWL_DEBUG_COEX(priv, " CI compliance: %d\n",
b6e116e8
WYG		 639 coex->bt_ci_compliance);
640 iwlagn_print_uartmsg(priv, uart_msg);
641
66e863a5 642 priv->last_bt_traffic_load = priv->bt_traffic_load;
207ecc5e
MV		 643 priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg);
644
b6e116e8
WYG		 645 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
646 if (priv->bt_status != coex->bt_status ||
66e863a5 647 priv->last_bt_traffic_load != coex->bt_traffic_load) {
b6e116e8
WYG		 648 if (coex->bt_status) {
649 /* BT on */
650 if (!priv->bt_ch_announce)
651 priv->bt_traffic_load =
652 IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
653 else
654 priv->bt_traffic_load =
655 coex->bt_traffic_load;
656 } else {
657 /* BT off */
658 priv->bt_traffic_load =
659 IWL_BT_COEX_TRAFFIC_LOAD_NONE;
660 }
661 priv->bt_status = coex->bt_status;
1ee158d8 662 queue_work(priv->workqueue,
b6e116e8
WYG		 663 &priv->bt_traffic_change_work);
664 }
b6e116e8
WYG		 665 }
666
354ce4a4 667 /* schedule to send runtime bt_config */
9dc4ca92
WYG		 668 /* check reduce power before change ack/cts kill mask */
669 if (iwlagn_fill_txpower_mode(priv, uart_msg) ||
670 iwlagn_set_kill_msk(priv, uart_msg))
354ce4a4
WYG		 671 queue_work(priv->workqueue, &priv->bt_runtime_config);
672
b6e116e8
WYG		 673
674 /* FIXME: based on notification, adjust the prio_boost */
675
b6e116e8 676 priv->bt_ci_compliance = coex->bt_ci_compliance;
247c61d6 677 return 0;
b6e116e8
WYG		 678}
679
680void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv)
681{
b6e116e8
WYG		 682 priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] =
683 iwlagn_bt_coex_profile_notif;
684}
685
686void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv)
687{
b6e116e8
WYG		 688 INIT_WORK(&priv->bt_traffic_change_work,
689 iwlagn_bt_traffic_change_work);
690}
691
692void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv)
693{
694 cancel_work_sync(&priv->bt_traffic_change_work);
695}
5de33068
JB		 696
697static bool is_single_rx_stream(struct iwl_priv *priv)
698{
699 return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
700 priv->current_ht_config.single_chain_sufficient;
701}
702
703#define IWL_NUM_RX_CHAINS_MULTIPLE 3
704#define IWL_NUM_RX_CHAINS_SINGLE 2
705#define IWL_NUM_IDLE_CHAINS_DUAL 2
706#define IWL_NUM_IDLE_CHAINS_SINGLE 1
707
708/*
709 * Determine how many receiver/antenna chains to use.
710 *
711 * More provides better reception via diversity. Fewer saves power
712 * at the expense of throughput, but only when not in powersave to
713 * start with.
714 *
715 * MIMO (dual stream) requires at least 2, but works better with 3.
716 * This does not determine *which* chains to use, just how many.
717 */
718static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
719{
2152268f
EG		 720 if (priv->cfg->bt_params &&
721 priv->cfg->bt_params->advanced_bt_coexist &&
5de33068
JB		 722 (priv->bt_full_concurrent ||
723 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
724 /*
725 * only use chain 'A' in bt high traffic load or
726 * full concurrency mode
727 */
728 return IWL_NUM_RX_CHAINS_SINGLE;
729 }
730 /* # of Rx chains to use when expecting MIMO. */
731 if (is_single_rx_stream(priv))
732 return IWL_NUM_RX_CHAINS_SINGLE;
733 else
734 return IWL_NUM_RX_CHAINS_MULTIPLE;
735}
736
737/*
738 * When we are in power saving mode, unless device support spatial
739 * multiplexing power save, use the active count for rx chain count.
740 */
741static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
742{
743 /* # Rx chains when idling, depending on SMPS mode */
744 switch (priv->current_ht_config.smps) {
745 case IEEE80211_SMPS_STATIC:
746 case IEEE80211_SMPS_DYNAMIC:
747 return IWL_NUM_IDLE_CHAINS_SINGLE;
b2ccccdc 748 case IEEE80211_SMPS_AUTOMATIC:
5de33068
JB		 749 case IEEE80211_SMPS_OFF:
750 return active_cnt;
751 default:
752 WARN(1, "invalid SMPS mode %d",
753 priv->current_ht_config.smps);
754 return active_cnt;
755 }
756}
757
758/* up to 4 chains */
759static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
760{
761 u8 res;
762 res = (chain_bitmap & BIT(0)) >> 0;
763 res += (chain_bitmap & BIT(1)) >> 1;
764 res += (chain_bitmap & BIT(2)) >> 2;
765 res += (chain_bitmap & BIT(3)) >> 3;
766 return res;
767}
768
769/**
770 * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
771 *
772 * Selects how many and which Rx receivers/antennas/chains to use.
773 * This should not be used for scan command ... it puts data in wrong place.
774 */
775void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
776{
777 bool is_single = is_single_rx_stream(priv);
47107e84 778 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
5de33068
JB		 779 u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
780 u32 active_chains;
781 u16 rx_chain;
782
783 /* Tell uCode which antennas are actually connected.
784 * Before first association, we assume all antennas are connected.
785 * Just after first association, iwl_chain_noise_calibration()
786 * checks which antennas actually *are* connected. */
787 if (priv->chain_noise_data.active_chains)
788 active_chains = priv->chain_noise_data.active_chains;
789 else
9e295116 790 active_chains = priv->hw_params.valid_rx_ant;
5de33068 791
2152268f
EG		 792 if (priv->cfg->bt_params &&
793 priv->cfg->bt_params->advanced_bt_coexist &&
5de33068
JB		 794 (priv->bt_full_concurrent ||
795 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
796 /*
797 * only use chain 'A' in bt high traffic load or
798 * full concurrency mode
799 */
800 active_chains = first_antenna(active_chains);
801 }
802
803 rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
804
805 /* How many receivers should we use? */
806 active_rx_cnt = iwl_get_active_rx_chain_count(priv);
807 idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
808
809
810 /* correct rx chain count according hw settings
811 * and chain noise calibration
812 */
813 valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
814 if (valid_rx_cnt < active_rx_cnt)
815 active_rx_cnt = valid_rx_cnt;
816
817 if (valid_rx_cnt < idle_rx_cnt)
818 idle_rx_cnt = valid_rx_cnt;
819
820 rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
821 rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
822
823 ctx->staging.rx_chain = cpu_to_le16(rx_chain);
824
825 if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
826 ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
827 else
828 ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
829
830 IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
831 ctx->staging.rx_chain,
832 active_rx_cnt, idle_rx_cnt);
833
834 WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
835 active_rx_cnt < idle_rx_cnt);
836}
facd982e
JB		 837
838u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
839{
840 int i;
841 u8 ind = ant;
842
843 if (priv->band == IEEE80211_BAND_2GHZ &&
844 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
845 return 0;
846
847 for (i = 0; i < RATE_ANT_NUM - 1; i++) {
848 ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
849 if (valid & BIT(ind))
850 return ind;
851 }
852 return ant;
853}
fed73292 854
023ca58f
WYG		 855#ifdef CONFIG_PM_SLEEP
856static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
857{
858 int i;
859
860 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
861 out[i] = cpu_to_le16(p1k[i]);
862}
863
864struct wowlan_key_data {
865 struct iwl_rxon_context *ctx;
866 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
867 struct iwlagn_wowlan_tkip_params_cmd *tkip;
868 const u8 *bssid;
869 bool error, use_rsc_tsc, use_tkip;
870};
871
872
873static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
874 struct ieee80211_vif *vif,
875 struct ieee80211_sta *sta,
876 struct ieee80211_key_conf *key,
877 void *_data)
878{
d0f76d68 879 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
023ca58f
WYG		 880 struct wowlan_key_data *data = _data;
881 struct iwl_rxon_context *ctx = data->ctx;
882 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
883 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
884 struct iwlagn_p1k_cache *rx_p1ks;
885 u8 *rx_mic_key;
886 struct ieee80211_key_seq seq;
887 u32 cur_rx_iv32 = 0;
888 u16 p1k[IWLAGN_P1K_SIZE];
889 int ret, i;
890
b1eea297 891 mutex_lock(&priv->mutex);
023ca58f
WYG		 892
893 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
894 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
895 !sta && !ctx->key_mapping_keys)
896 ret = iwl_set_default_wep_key(priv, ctx, key);
897 else
898 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
899
900 if (ret) {
901 IWL_ERR(priv, "Error setting key during suspend!\n");
902 data->error = true;
903 }
904
905 switch (key->cipher) {
906 case WLAN_CIPHER_SUITE_TKIP:
907 if (sta) {
908 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
909 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
910
911 rx_p1ks = data->tkip->rx_uni;
912
913 ieee80211_get_key_tx_seq(key, &seq);
914 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
915 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
916
917 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
918 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
919
920 memcpy(data->tkip->mic_keys.tx,
921 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
922 IWLAGN_MIC_KEY_SIZE);
923
924 rx_mic_key = data->tkip->mic_keys.rx_unicast;
925 } else {
926 tkip_sc =
927 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
928 rx_p1ks = data->tkip->rx_multi;
929 rx_mic_key = data->tkip->mic_keys.rx_mcast;
930 }
931
932 /*
933 * For non-QoS this relies on the fact that both the uCode and
934 * mac80211 use TID 0 (as they need to to avoid replay attacks)
935 * for checking the IV in the frames.
936 */
937 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
938 ieee80211_get_key_rx_seq(key, i, &seq);
939 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
940 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
941 /* wrapping isn't allowed, AP must rekey */
942 if (seq.tkip.iv32 > cur_rx_iv32)
943 cur_rx_iv32 = seq.tkip.iv32;
944 }
945
946 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
947 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
948 ieee80211_get_tkip_rx_p1k(key, data->bssid,
949 cur_rx_iv32 + 1, p1k);
950 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
951
952 memcpy(rx_mic_key,
953 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
954 IWLAGN_MIC_KEY_SIZE);
955
956 data->use_tkip = true;
957 data->use_rsc_tsc = true;
958 break;
959 case WLAN_CIPHER_SUITE_CCMP:
960 if (sta) {
961 u8 *pn = seq.ccmp.pn;
962
963 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
964 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
965
966 ieee80211_get_key_tx_seq(key, &seq);
967 aes_tx_sc->pn = cpu_to_le64(
968 (u64)pn[5] |
969 ((u64)pn[4] << 8) |
970 ((u64)pn[3] << 16) |
971 ((u64)pn[2] << 24) |
972 ((u64)pn[1] << 32) |
973 ((u64)pn[0] << 40));
974 } else
975 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
976
977 /*
978 * For non-QoS this relies on the fact that both the uCode and
979 * mac80211 use TID 0 for checking the IV in the frames.
980 */
981 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
982 u8 *pn = seq.ccmp.pn;
983
984 ieee80211_get_key_rx_seq(key, i, &seq);
985 aes_sc->pn = cpu_to_le64(
986 (u64)pn[5] |
987 ((u64)pn[4] << 8) |
988 ((u64)pn[3] << 16) |
989 ((u64)pn[2] << 24) |
990 ((u64)pn[1] << 32) |
991 ((u64)pn[0] << 40));
992 }
993 data->use_rsc_tsc = true;
994 break;
995 }
996
b1eea297 997 mutex_unlock(&priv->mutex);
023ca58f
WYG		 998}
999
1000int iwlagn_send_patterns(struct iwl_priv *priv,
1001 struct cfg80211_wowlan *wowlan)
1002{
1003 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1004 struct iwl_host_cmd cmd = {
1005 .id = REPLY_WOWLAN_PATTERNS,
1006 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1007 .flags = CMD_SYNC,
1008 };
1009 int i, err;
1010
1011 if (!wowlan->n_patterns)
1012 return 0;
1013
1014 cmd.len[0] = sizeof(*pattern_cmd) +
1015 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1016
1017 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1018 if (!pattern_cmd)
1019 return -ENOMEM;
1020
1021 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1022
1023 for (i = 0; i < wowlan->n_patterns; i++) {
1024 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1025
1026 memcpy(&pattern_cmd->patterns[i].mask,
1027 wowlan->patterns[i].mask, mask_len);
1028 memcpy(&pattern_cmd->patterns[i].pattern,
1029 wowlan->patterns[i].pattern,
1030 wowlan->patterns[i].pattern_len);
1031 pattern_cmd->patterns[i].mask_size = mask_len;
1032 pattern_cmd->patterns[i].pattern_size =
1033 wowlan->patterns[i].pattern_len;
1034 }
1035
1036 cmd.data[0] = pattern_cmd;
e10a0533 1037 err = iwl_dvm_send_cmd(priv, &cmd);
023ca58f
WYG		 1038 kfree(pattern_cmd);
1039 return err;
1040}
1041
ea886a60 1042int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan)
023ca58f
WYG		 1043{
1044 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
1045 struct iwl_rxon_cmd rxon;
1046 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1047 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
1048 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
1049 struct iwlagn_d3_config_cmd d3_cfg_cmd = {};
1050 struct wowlan_key_data key_data = {
1051 .ctx = ctx,
1052 .bssid = ctx->active.bssid_addr,
1053 .use_rsc_tsc = false,
1054 .tkip = &tkip_cmd,
1055 .use_tkip = false,
1056 };
1057 int ret, i;
1058 u16 seq;
1059
1060 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
1061 if (!key_data.rsc_tsc)
1062 return -ENOMEM;
1063
1064 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
1065
1066 /*
1067 * We know the last used seqno, and the uCode expects to know that
1068 * one, it will increment before TX.
1069 */
1070 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
1071 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
1072
1073 /*
1074 * For QoS counters, we store the one to use next, so subtract 0x10
1075 * since the uCode will add 0x10 before using the value.
1076 */
e0467a30 1077 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
04cf6824 1078 seq = priv->tid_data[IWL_AP_ID][i].seq_number;
023ca58f
WYG		 1079 seq -= 0x10;
1080 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
1081 }
1082
1083 if (wowlan->disconnect)
1084 wakeup_filter_cmd.enabled |=
1085 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
1086 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
1087 if (wowlan->magic_pkt)
1088 wakeup_filter_cmd.enabled |=
1089 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
1090 if (wowlan->gtk_rekey_failure)
1091 wakeup_filter_cmd.enabled |=
1092 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
1093 if (wowlan->eap_identity_req)
1094 wakeup_filter_cmd.enabled |=
1095 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
1096 if (wowlan->four_way_handshake)
1097 wakeup_filter_cmd.enabled |=
1098 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
1099 if (wowlan->n_patterns)
1100 wakeup_filter_cmd.enabled |=
1101 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
1102
1103 if (wowlan->rfkill_release)
1104 d3_cfg_cmd.wakeup_flags |=
1105 cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL);
1106
1107 iwl_scan_cancel_timeout(priv, 200);
1108
1109 memcpy(&rxon, &ctx->active, sizeof(rxon));
1110
8f7ffbe2 1111 priv->ucode_loaded = false;
68e8dfda 1112 iwl_trans_stop_device(priv->trans);
023ca58f 1113
15b86bff 1114 priv->wowlan = true;
023ca58f 1115
e1991885 1116 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
023ca58f
WYG		 1117 if (ret)
1118 goto out;
1119
1120 /* now configure WoWLAN ucode */
1121 ret = iwl_alive_start(priv);
1122 if (ret)
1123 goto out;
1124
1125 memcpy(&ctx->staging, &rxon, sizeof(rxon));
1126 ret = iwlagn_commit_rxon(priv, ctx);
1127 if (ret)
1128 goto out;
1129
1130 ret = iwl_power_update_mode(priv, true);
1131 if (ret)
1132 goto out;
1133
65de7e84 1134 if (!iwlwifi_mod_params.sw_crypto) {
023ca58f
WYG		 1135 /* mark all keys clear */
1136 priv->ucode_key_table = 0;
1137 ctx->key_mapping_keys = 0;
1138
1139 /*
1140 * This needs to be unlocked due to lock ordering
1141 * constraints. Since we're in the suspend path
1142 * that isn't really a problem though.
1143 */
b1eea297 1144 mutex_unlock(&priv->mutex);
023ca58f
WYG		 1145 ieee80211_iter_keys(priv->hw, ctx->vif,
1146 iwlagn_wowlan_program_keys,
1147 &key_data);
b1eea297 1148 mutex_lock(&priv->mutex);
023ca58f
WYG		 1149 if (key_data.error) {
1150 ret = -EIO;
1151 goto out;
1152 }
1153
1154 if (key_data.use_rsc_tsc) {
1155 struct iwl_host_cmd rsc_tsc_cmd = {
1156 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
1157 .flags = CMD_SYNC,
1158 .data[0] = key_data.rsc_tsc,
1159 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
182ada1c 1160 .len[0] = sizeof(*key_data.rsc_tsc),
023ca58f
WYG		 1161 };
1162
e10a0533 1163 ret = iwl_dvm_send_cmd(priv, &rsc_tsc_cmd);
023ca58f
WYG		 1164 if (ret)
1165 goto out;
1166 }
1167
1168 if (key_data.use_tkip) {
e10a0533 1169 ret = iwl_dvm_send_cmd_pdu(priv,
023ca58f
WYG		 1170 REPLY_WOWLAN_TKIP_PARAMS,
1171 CMD_SYNC, sizeof(tkip_cmd),
1172 &tkip_cmd);
1173 if (ret)
1174 goto out;
1175 }
1176
1177 if (priv->have_rekey_data) {
1178 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
1179 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
1180 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
1181 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
1182 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
1183 kek_kck_cmd.replay_ctr = priv->replay_ctr;
1184
e10a0533 1185 ret = iwl_dvm_send_cmd_pdu(priv,
023ca58f
WYG		 1186 REPLY_WOWLAN_KEK_KCK_MATERIAL,
1187 CMD_SYNC, sizeof(kek_kck_cmd),
1188 &kek_kck_cmd);
1189 if (ret)
1190 goto out;
1191 }
1192 }
1193
e10a0533 1194 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, CMD_SYNC,
023ca58f
WYG		 1195 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1196 if (ret)
1197 goto out;
1198
e10a0533 1199 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER,
023ca58f
WYG		 1200 CMD_SYNC, sizeof(wakeup_filter_cmd),
1201 &wakeup_filter_cmd);
1202 if (ret)
1203 goto out;
1204
1205 ret = iwlagn_send_patterns(priv, wowlan);
1206 out:
1207 kfree(key_data.rsc_tsc);
1208 return ret;
1209}
1210#endif
e10a0533
JB		 1211
1212int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
1213{
83626404 1214 if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) {
721c32f7 1215 IWL_WARN(priv, "Not sending command - %s KILL\n",
83626404 1216 iwl_is_rfkill(priv) ? "RF" : "CT");
721c32f7
JB		 1217 return -EIO;
1218 }
1219
17acd0b6
DF		 1220 if (test_bit(STATUS_FW_ERROR, &priv->status)) {
1221 IWL_ERR(priv, "Command %s failed: FW Error\n",
d9fb6465 1222 iwl_dvm_get_cmd_string(cmd->id));
17acd0b6
DF		 1223 return -EIO;
1224 }
1225
2cc39c94
JB		 1226 /*
1227 * Synchronous commands from this op-mode must hold
1228 * the mutex, this ensures we don't try to send two
1229 * (or more) synchronous commands at a time.
1230 */
1231 if (cmd->flags & CMD_SYNC)
b1eea297 1232 lockdep_assert_held(&priv->mutex);
2cc39c94 1233
947a9407
JB		 1234 if (priv->ucode_owner == IWL_OWNERSHIP_TM &&
1235 !(cmd->flags & CMD_ON_DEMAND)) {
1236 IWL_DEBUG_HC(priv, "tm own the uCode, no regular hcmd send\n");
1237 return -EIO;
1238 }
1239
68e8dfda 1240 return iwl_trans_send_cmd(priv->trans, cmd);
e10a0533
JB		 1241}
1242
1243int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id,
1244 u32 flags, u16 len, const void *data)
1245{
1246 struct iwl_host_cmd cmd = {
1247 .id = id,
1248 .len = { len, },
1249 .data = { data, },
1250 .flags = flags,
1251 };
1252
1253 return iwl_dvm_send_cmd(priv, &cmd);
1254}
Linux 6.x block layer and io_uring tree(s)