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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 |
44 | int 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 | ||
50 | int 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 | ||
89 | void 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 |
98 | int 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 |
119 | int 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 | 139 | int 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 | 172 | void 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 |
182 | done: |
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 */ |
191 | static 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 */ | |
208 | static 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 */ | |
224 | static 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 | ||
239 | void 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 |
346 | void 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 | ||
418 | static 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 |
424 | static 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 | 491 | out: |
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 | */ | |
500 | void 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 |
509 | static 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 | 578 | static 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 |
615 | static 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 | 660 | int 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 | ||
718 | void 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 | ||
724 | void 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 | ||
730 | void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv) | |
731 | { | |
732 | cancel_work_sync(&priv->bt_traffic_change_work); | |
733 | } | |
5de33068 JB |
734 | |
735 | static 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 | */ | |
756 | static 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 | */ | |
779 | static 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 */ | |
797 | static 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 | */ | |
813 | void 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 | |
876 | u8 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 |
894 | static 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 | ||
902 | struct 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 | ||
911 | static 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 | ||
1038 | int 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 | 1080 | int 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 | |
1250 | int 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 | ||
1290 | int 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 | } |