1259 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/******************************************************************************3 *4 * Copyright(c) 2008 - 2014, 2022 Intel Corporation. All rights reserved.5 *****************************************************************************/6#include <linux/etherdevice.h>7#include <linux/kernel.h>8#include <linux/module.h>9#include <linux/sched.h>10#include <net/mac80211.h>11 12#include "iwl-io.h"13#include "iwl-agn-hw.h"14#include "iwl-trans.h"15#include "iwl-modparams.h"16 17#include "dev.h"18#include "agn.h"19 20int iwlagn_hw_valid_rtc_data_addr(u32 addr)21{22 return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) &&23 (addr < IWLAGN_RTC_DATA_UPPER_BOUND);24}25 26int iwlagn_send_tx_power(struct iwl_priv *priv)27{28 struct iwlagn_tx_power_dbm_cmd tx_power_cmd;29 u8 tx_ant_cfg_cmd;30 31 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),32 "TX Power requested while scanning!\n"))33 return -EAGAIN;34 35 /* half dBm need to multiply */36 tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);37 38 if (tx_power_cmd.global_lmt > priv->nvm_data->max_tx_pwr_half_dbm) {39 /*40 * For the newer devices which using enhanced/extend tx power41 * table in EEPROM, the format is in half dBm. driver need to42 * convert to dBm format before report to mac80211.43 * By doing so, there is a possibility of 1/2 dBm resolution44 * lost. driver will perform "round-up" operation before45 * reporting, but it will cause 1/2 dBm tx power over the46 * regulatory limit. Perform the checking here, if the47 * "tx_power_user_lmt" is higher than EEPROM value (in48 * half-dBm format), lower the tx power based on EEPROM49 */50 tx_power_cmd.global_lmt =51 priv->nvm_data->max_tx_pwr_half_dbm;52 }53 tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED;54 tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO;55 56 if (IWL_UCODE_API(priv->fw->ucode_ver) == 1)57 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1;58 else59 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD;60 61 return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, 0,62 sizeof(tx_power_cmd), &tx_power_cmd);63}64 65void iwlagn_temperature(struct iwl_priv *priv)66{67 lockdep_assert_held(&priv->statistics.lock);68 69 /* store temperature from correct statistics (in Celsius) */70 priv->temperature = le32_to_cpu(priv->statistics.common.temperature);71 iwl_tt_handler(priv);72}73 74int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum nl80211_band band)75{76 int idx = 0;77 int band_offset = 0;78 79 /* HT rate format: mac80211 wants an MCS number, which is just LSB */80 if (rate_n_flags & RATE_MCS_HT_MSK) {81 idx = (rate_n_flags & 0xff);82 return idx;83 /* Legacy rate format, search for match in table */84 } else {85 if (band == NL80211_BAND_5GHZ)86 band_offset = IWL_FIRST_OFDM_RATE;87 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)88 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))89 return idx - band_offset;90 }91 92 return -1;93}94 95int iwlagn_manage_ibss_station(struct iwl_priv *priv,96 struct ieee80211_vif *vif, bool add)97{98 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;99 100 if (add)101 return iwlagn_add_bssid_station(priv, vif_priv->ctx,102 vif->bss_conf.bssid,103 &vif_priv->ibss_bssid_sta_id);104 return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,105 vif->bss_conf.bssid);106}107 108/*109 * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode110 *111 * pre-requirements:112 * 1. acquire mutex before calling113 * 2. make sure rf is on and not in exit state114 */115int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk)116{117 struct iwl_txfifo_flush_cmd_v3 flush_cmd_v3 = {118 .flush_control = cpu_to_le16(IWL_DROP_ALL),119 };120 struct iwl_txfifo_flush_cmd_v2 flush_cmd_v2 = {121 .flush_control = cpu_to_le16(IWL_DROP_ALL),122 };123 124 u32 queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |125 IWL_SCD_BE_MSK | IWL_SCD_BK_MSK | IWL_SCD_MGMT_MSK;126 127 if ((priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)))128 queue_control |= IWL_PAN_SCD_VO_MSK | IWL_PAN_SCD_VI_MSK |129 IWL_PAN_SCD_BE_MSK | IWL_PAN_SCD_BK_MSK |130 IWL_PAN_SCD_MGMT_MSK |131 IWL_PAN_SCD_MULTICAST_MSK;132 133 if (priv->nvm_data->sku_cap_11n_enable)134 queue_control |= IWL_AGG_TX_QUEUE_MSK;135 136 if (scd_q_msk)137 queue_control = scd_q_msk;138 139 IWL_DEBUG_INFO(priv, "queue control: 0x%x\n", queue_control);140 flush_cmd_v3.queue_control = cpu_to_le32(queue_control);141 flush_cmd_v2.queue_control = cpu_to_le16((u16)queue_control);142 143 if (IWL_UCODE_API(priv->fw->ucode_ver) > 2)144 return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0,145 sizeof(flush_cmd_v3),146 &flush_cmd_v3);147 return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0,148 sizeof(flush_cmd_v2), &flush_cmd_v2);149}150 151void iwlagn_dev_txfifo_flush(struct iwl_priv *priv)152{153 mutex_lock(&priv->mutex);154 ieee80211_stop_queues(priv->hw);155 if (iwlagn_txfifo_flush(priv, 0)) {156 IWL_ERR(priv, "flush request fail\n");157 goto done;158 }159 IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n");160 iwl_trans_wait_tx_queues_empty(priv->trans, 0xffffffff);161done:162 ieee80211_wake_queues(priv->hw);163 mutex_unlock(&priv->mutex);164}165 166/*167 * BT coex168 */169/* Notmal TDM */170static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {171 cpu_to_le32(0xaaaaaaaa),172 cpu_to_le32(0xaaaaaaaa),173 cpu_to_le32(0xaeaaaaaa),174 cpu_to_le32(0xaaaaaaaa),175 cpu_to_le32(0xcc00ff28),176 cpu_to_le32(0x0000aaaa),177 cpu_to_le32(0xcc00aaaa),178 cpu_to_le32(0x0000aaaa),179 cpu_to_le32(0xc0004000),180 cpu_to_le32(0x00004000),181 cpu_to_le32(0xf0005000),182 cpu_to_le32(0xf0005000),183};184 185/* Full concurrency */186static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = {187 cpu_to_le32(0xaaaaaaaa),188 cpu_to_le32(0xaaaaaaaa),189 cpu_to_le32(0xaaaaaaaa),190 cpu_to_le32(0xaaaaaaaa),191 cpu_to_le32(0xaaaaaaaa),192 cpu_to_le32(0xaaaaaaaa),193 cpu_to_le32(0xaaaaaaaa),194 cpu_to_le32(0xaaaaaaaa),195 cpu_to_le32(0x00000000),196 cpu_to_le32(0x00000000),197 cpu_to_le32(0x00000000),198 cpu_to_le32(0x00000000),199};200 201void iwlagn_send_advance_bt_config(struct iwl_priv *priv)202{203 struct iwl_basic_bt_cmd basic = {204 .max_kill = IWLAGN_BT_MAX_KILL_DEFAULT,205 .bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT,206 .bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT,207 .bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT,208 };209 struct iwl_bt_cmd_v1 bt_cmd_v1;210 struct iwl_bt_cmd_v2 bt_cmd_v2;211 int ret;212 213 BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) !=214 sizeof(basic.bt3_lookup_table));215 216 if (priv->lib->bt_params) {217 /*218 * newer generation of devices (2000 series and newer)219 * use the version 2 of the bt command220 * we need to make sure sending the host command221 * with correct data structure to avoid uCode assert222 */223 if (priv->lib->bt_params->bt_session_2) {224 bt_cmd_v2.prio_boost = cpu_to_le32(225 priv->lib->bt_params->bt_prio_boost);226 bt_cmd_v2.tx_prio_boost = 0;227 bt_cmd_v2.rx_prio_boost = 0;228 } else {229 /* older version only has 8 bits */230 WARN_ON(priv->lib->bt_params->bt_prio_boost & ~0xFF);231 bt_cmd_v1.prio_boost =232 priv->lib->bt_params->bt_prio_boost;233 bt_cmd_v1.tx_prio_boost = 0;234 bt_cmd_v1.rx_prio_boost = 0;235 }236 } else {237 IWL_ERR(priv, "failed to construct BT Coex Config\n");238 return;239 }240 241 /*242 * Possible situations when BT needs to take over for receive,243 * at the same time where STA needs to response to AP's frame(s),244 * reduce the tx power of the required response frames, by that,245 * allow the concurrent BT receive & WiFi transmit246 * (BT - ANT A, WiFi -ANT B), without interference to one another247 *248 * Reduced tx power apply to control frames only (ACK/Back/CTS)249 * when indicated by the BT config command250 */251 basic.kill_ack_mask = priv->kill_ack_mask;252 basic.kill_cts_mask = priv->kill_cts_mask;253 if (priv->reduced_txpower)254 basic.reduce_txpower = IWLAGN_BT_REDUCED_TX_PWR;255 basic.valid = priv->bt_valid;256 257 /*258 * Configure BT coex mode to "no coexistence" when the259 * user disabled BT coexistence, we have no interface260 * (might be in monitor mode), or the interface is in261 * IBSS mode (no proper uCode support for coex then).262 */263 if (!iwlwifi_mod_params.bt_coex_active ||264 priv->iw_mode == NL80211_IFTYPE_ADHOC) {265 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED;266 } else {267 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<268 IWLAGN_BT_FLAG_COEX_MODE_SHIFT;269 270 if (!priv->bt_enable_pspoll)271 basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;272 else273 basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;274 275 if (priv->bt_ch_announce)276 basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;277 IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags);278 }279 priv->bt_enable_flag = basic.flags;280 if (priv->bt_full_concurrent)281 memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup,282 sizeof(iwlagn_concurrent_lookup));283 else284 memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup,285 sizeof(iwlagn_def_3w_lookup));286 287 IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n",288 basic.flags ? "active" : "disabled",289 priv->bt_full_concurrent ?290 "full concurrency" : "3-wire");291 292 if (priv->lib->bt_params->bt_session_2) {293 memcpy(&bt_cmd_v2.basic, &basic,294 sizeof(basic));295 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,296 0, sizeof(bt_cmd_v2), &bt_cmd_v2);297 } else {298 memcpy(&bt_cmd_v1.basic, &basic,299 sizeof(basic));300 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,301 0, sizeof(bt_cmd_v1), &bt_cmd_v1);302 }303 if (ret)304 IWL_ERR(priv, "failed to send BT Coex Config\n");305 306}307 308void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)309{310 struct iwl_rxon_context *ctx, *found_ctx = NULL;311 bool found_ap = false;312 313 lockdep_assert_held(&priv->mutex);314 315 /* Check whether AP or GO mode is active. */316 if (rssi_ena) {317 for_each_context(priv, ctx) {318 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP &&319 iwl_is_associated_ctx(ctx)) {320 found_ap = true;321 break;322 }323 }324 }325 326 /*327 * If disable was received or If GO/AP mode, disable RSSI328 * measurements.329 */330 if (!rssi_ena || found_ap) {331 if (priv->cur_rssi_ctx) {332 ctx = priv->cur_rssi_ctx;333 ieee80211_disable_rssi_reports(ctx->vif);334 priv->cur_rssi_ctx = NULL;335 }336 return;337 }338 339 /*340 * If rssi measurements need to be enabled, consider all cases now.341 * Figure out how many contexts are active.342 */343 for_each_context(priv, ctx) {344 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION &&345 iwl_is_associated_ctx(ctx)) {346 found_ctx = ctx;347 break;348 }349 }350 351 /*352 * rssi monitor already enabled for the correct interface...nothing353 * to do.354 */355 if (found_ctx == priv->cur_rssi_ctx)356 return;357 358 /*359 * Figure out if rssi monitor is currently enabled, and needs360 * to be changed. If rssi monitor is already enabled, disable361 * it first else just enable rssi measurements on the362 * interface found above.363 */364 if (priv->cur_rssi_ctx) {365 ctx = priv->cur_rssi_ctx;366 if (ctx->vif)367 ieee80211_disable_rssi_reports(ctx->vif);368 }369 370 priv->cur_rssi_ctx = found_ctx;371 372 if (!found_ctx)373 return;374 375 ieee80211_enable_rssi_reports(found_ctx->vif,376 IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD,377 IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD);378}379 380static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)381{382 return (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>383 BT_UART_MSG_FRAME3SCOESCO_POS;384}385 386static void iwlagn_bt_traffic_change_work(struct work_struct *work)387{388 struct iwl_priv *priv =389 container_of(work, struct iwl_priv, bt_traffic_change_work);390 struct iwl_rxon_context *ctx;391 int smps_request = -1;392 393 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {394 /* bt coex disabled */395 return;396 }397 398 /*399 * Note: bt_traffic_load can be overridden by scan complete and400 * coex profile notifications. Ignore that since only bad consequence401 * can be not matching debug print with actual state.402 */403 IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n",404 priv->bt_traffic_load);405 406 switch (priv->bt_traffic_load) {407 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:408 if (priv->bt_status)409 smps_request = IEEE80211_SMPS_DYNAMIC;410 else411 smps_request = IEEE80211_SMPS_AUTOMATIC;412 break;413 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:414 smps_request = IEEE80211_SMPS_DYNAMIC;415 break;416 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:417 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:418 smps_request = IEEE80211_SMPS_STATIC;419 break;420 default:421 IWL_ERR(priv, "Invalid BT traffic load: %d\n",422 priv->bt_traffic_load);423 break;424 }425 426 mutex_lock(&priv->mutex);427 428 /*429 * We can not send command to firmware while scanning. When the scan430 * complete we will schedule this work again. We do check with mutex431 * locked to prevent new scan request to arrive. We do not check432 * STATUS_SCANNING to avoid race when queue_work two times from433 * different notifications, but quit and not perform any work at all.434 */435 if (test_bit(STATUS_SCAN_HW, &priv->status))436 goto out;437 438 iwl_update_chain_flags(priv);439 440 if (smps_request != -1) {441 priv->current_ht_config.smps = smps_request;442 for_each_context(priv, ctx) {443 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION)444 ieee80211_request_smps(ctx->vif, 0, smps_request);445 }446 }447 448 /*449 * Dynamic PS poll related functionality. Adjust RSSI measurements if450 * necessary.451 */452 iwlagn_bt_coex_rssi_monitor(priv);453out:454 mutex_unlock(&priv->mutex);455}456 457/*458 * If BT sco traffic, and RSSI monitor is enabled, move measurements to the459 * correct interface or disable it if this is the last interface to be460 * removed.461 */462void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv)463{464 if (priv->bt_is_sco &&465 priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS)466 iwlagn_bt_adjust_rssi_monitor(priv, true);467 else468 iwlagn_bt_adjust_rssi_monitor(priv, false);469}470 471static void iwlagn_print_uartmsg(struct iwl_priv *priv,472 struct iwl_bt_uart_msg *uart_msg)473{474 IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, "475 "Update Req = 0x%X\n",476 (BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >>477 BT_UART_MSG_FRAME1MSGTYPE_POS,478 (BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >>479 BT_UART_MSG_FRAME1SSN_POS,480 (BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >>481 BT_UART_MSG_FRAME1UPDATEREQ_POS);482 483 IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, "484 "Chl_SeqN = 0x%X, In band = 0x%X\n",485 (BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >>486 BT_UART_MSG_FRAME2OPENCONNECTIONS_POS,487 (BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >>488 BT_UART_MSG_FRAME2TRAFFICLOAD_POS,489 (BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >>490 BT_UART_MSG_FRAME2CHLSEQN_POS,491 (BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >>492 BT_UART_MSG_FRAME2INBAND_POS);493 494 IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "495 "ACL = 0x%X, Master = 0x%X, OBEX = 0x%X\n",496 (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>497 BT_UART_MSG_FRAME3SCOESCO_POS,498 (BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >>499 BT_UART_MSG_FRAME3SNIFF_POS,500 (BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >>501 BT_UART_MSG_FRAME3A2DP_POS,502 (BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >>503 BT_UART_MSG_FRAME3ACL_POS,504 (BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >>505 BT_UART_MSG_FRAME3MASTER_POS,506 (BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >>507 BT_UART_MSG_FRAME3OBEX_POS);508 509 IWL_DEBUG_COEX(priv, "Idle duration = 0x%X\n",510 (BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >>511 BT_UART_MSG_FRAME4IDLEDURATION_POS);512 513 IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "514 "eSCO Retransmissions = 0x%X\n",515 (BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >>516 BT_UART_MSG_FRAME5TXACTIVITY_POS,517 (BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >>518 BT_UART_MSG_FRAME5RXACTIVITY_POS,519 (BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >>520 BT_UART_MSG_FRAME5ESCORETRANSMIT_POS);521 522 IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X\n",523 (BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >>524 BT_UART_MSG_FRAME6SNIFFINTERVAL_POS,525 (BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >>526 BT_UART_MSG_FRAME6DISCOVERABLE_POS);527 528 IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = "529 "0x%X, Inquiry = 0x%X, Connectable = 0x%X\n",530 (BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >>531 BT_UART_MSG_FRAME7SNIFFACTIVITY_POS,532 (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >>533 BT_UART_MSG_FRAME7PAGE_POS,534 (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >>535 BT_UART_MSG_FRAME7INQUIRY_POS,536 (BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >>537 BT_UART_MSG_FRAME7CONNECTABLE_POS);538}539 540static bool iwlagn_set_kill_msk(struct iwl_priv *priv,541 struct iwl_bt_uart_msg *uart_msg)542{543 bool need_update = false;544 u8 kill_msk = IWL_BT_KILL_REDUCE;545 static const __le32 bt_kill_ack_msg[3] = {546 IWLAGN_BT_KILL_ACK_MASK_DEFAULT,547 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,548 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};549 static const __le32 bt_kill_cts_msg[3] = {550 IWLAGN_BT_KILL_CTS_MASK_DEFAULT,551 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO,552 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE};553 554 if (!priv->reduced_txpower)555 kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3)556 ? IWL_BT_KILL_OVERRIDE : IWL_BT_KILL_DEFAULT;557 if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] ||558 priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) {559 priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK;560 priv->kill_ack_mask = bt_kill_ack_msg[kill_msk];561 priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK;562 priv->kill_cts_mask = bt_kill_cts_msg[kill_msk];563 need_update = true;564 }565 return need_update;566}567 568/*569 * Upon RSSI changes, sends a bt config command with following changes570 * 1. enable/disable "reduced control frames tx power571 * 2. update the "kill)ack_mask" and "kill_cts_mask"572 *573 * If "reduced tx power" is enabled, uCode shall574 * 1. ACK/Back/CTS rate shall reduced to 6Mbps575 * 2. not use duplciate 20/40MHz mode576 */577static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv,578 struct iwl_bt_uart_msg *uart_msg)579{580 bool need_update = false;581 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];582 int ave_rssi;583 584 if (!ctx->vif || (ctx->vif->type != NL80211_IFTYPE_STATION)) {585 IWL_DEBUG_INFO(priv, "BSS ctx not active or not in sta mode\n");586 return false;587 }588 589 ave_rssi = ieee80211_ave_rssi(ctx->vif);590 if (!ave_rssi) {591 /* no rssi data, no changes to reduce tx power */592 IWL_DEBUG_COEX(priv, "no rssi data available\n");593 return need_update;594 }595 if (!priv->reduced_txpower &&596 !iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&597 (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) &&598 (uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |599 BT_UART_MSG_FRAME3OBEX_MSK)) &&600 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |601 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) {602 /* enabling reduced tx power */603 priv->reduced_txpower = true;604 priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;605 need_update = true;606 } else if (priv->reduced_txpower &&607 (iwl_is_associated(priv, IWL_RXON_CTX_PAN) ||608 (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) ||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;617 }618 619 return need_update;620}621 622static void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,623 struct iwl_rx_cmd_buffer *rxb)624{625 struct iwl_rx_packet *pkt = rxb_addr(rxb);626 struct iwl_bt_coex_profile_notif *coex = (void *)pkt->data;627 struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;628 629 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {630 /* bt coex disabled */631 return;632 }633 634 IWL_DEBUG_COEX(priv, "BT Coex notification:\n");635 IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status);636 IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load);637 IWL_DEBUG_COEX(priv, " CI compliance: %d\n",638 coex->bt_ci_compliance);639 iwlagn_print_uartmsg(priv, uart_msg);640 641 priv->last_bt_traffic_load = priv->bt_traffic_load;642 priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg);643 644 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {645 if (priv->bt_status != coex->bt_status ||646 priv->last_bt_traffic_load != coex->bt_traffic_load) {647 if (coex->bt_status) {648 /* BT on */649 if (!priv->bt_ch_announce)650 priv->bt_traffic_load =651 IWL_BT_COEX_TRAFFIC_LOAD_HIGH;652 else653 priv->bt_traffic_load =654 coex->bt_traffic_load;655 } else {656 /* BT off */657 priv->bt_traffic_load =658 IWL_BT_COEX_TRAFFIC_LOAD_NONE;659 }660 priv->bt_status = coex->bt_status;661 queue_work(priv->workqueue,662 &priv->bt_traffic_change_work);663 }664 }665 666 /* schedule to send runtime bt_config */667 /* check reduce power before change ack/cts kill mask */668 if (iwlagn_fill_txpower_mode(priv, uart_msg) ||669 iwlagn_set_kill_msk(priv, uart_msg))670 queue_work(priv->workqueue, &priv->bt_runtime_config);671 672 673 /* FIXME: based on notification, adjust the prio_boost */674 675 priv->bt_ci_compliance = coex->bt_ci_compliance;676}677 678void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv)679{680 priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] =681 iwlagn_bt_coex_profile_notif;682}683 684void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv)685{686 INIT_WORK(&priv->bt_traffic_change_work,687 iwlagn_bt_traffic_change_work);688}689 690void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv)691{692 cancel_work_sync(&priv->bt_traffic_change_work);693}694 695static bool is_single_rx_stream(struct iwl_priv *priv)696{697 return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||698 priv->current_ht_config.single_chain_sufficient;699}700 701#define IWL_NUM_RX_CHAINS_MULTIPLE 3702#define IWL_NUM_RX_CHAINS_SINGLE 2703#define IWL_NUM_IDLE_CHAINS_DUAL 2704#define IWL_NUM_IDLE_CHAINS_SINGLE 1705 706/*707 * Determine how many receiver/antenna chains to use.708 *709 * More provides better reception via diversity. Fewer saves power710 * at the expense of throughput, but only when not in powersave to711 * start with.712 *713 * MIMO (dual stream) requires at least 2, but works better with 3.714 * This does not determine *which* chains to use, just how many.715 */716static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)717{718 if (priv->lib->bt_params &&719 priv->lib->bt_params->advanced_bt_coexist &&720 (priv->bt_full_concurrent ||721 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {722 /*723 * only use chain 'A' in bt high traffic load or724 * full concurrency mode725 */726 return IWL_NUM_RX_CHAINS_SINGLE;727 }728 /* # of Rx chains to use when expecting MIMO. */729 if (is_single_rx_stream(priv))730 return IWL_NUM_RX_CHAINS_SINGLE;731 else732 return IWL_NUM_RX_CHAINS_MULTIPLE;733}734 735/*736 * When we are in power saving mode, unless device support spatial737 * multiplexing power save, use the active count for rx chain count.738 */739static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)740{741 /* # Rx chains when idling, depending on SMPS mode */742 switch (priv->current_ht_config.smps) {743 case IEEE80211_SMPS_STATIC:744 case IEEE80211_SMPS_DYNAMIC:745 return IWL_NUM_IDLE_CHAINS_SINGLE;746 case IEEE80211_SMPS_AUTOMATIC:747 case IEEE80211_SMPS_OFF:748 return active_cnt;749 default:750 WARN(1, "invalid SMPS mode %d",751 priv->current_ht_config.smps);752 return active_cnt;753 }754}755 756/* up to 4 chains */757static u8 iwl_count_chain_bitmap(u32 chain_bitmap)758{759 u8 res;760 res = (chain_bitmap & BIT(0)) >> 0;761 res += (chain_bitmap & BIT(1)) >> 1;762 res += (chain_bitmap & BIT(2)) >> 2;763 res += (chain_bitmap & BIT(3)) >> 3;764 return res;765}766 767/*768 * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image769 *770 * Selects how many and which Rx receivers/antennas/chains to use.771 * This should not be used for scan command ... it puts data in wrong place.772 */773void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)774{775 bool is_single = is_single_rx_stream(priv);776 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);777 u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;778 u32 active_chains;779 u16 rx_chain;780 781 /* Tell uCode which antennas are actually connected.782 * Before first association, we assume all antennas are connected.783 * Just after first association, iwl_chain_noise_calibration()784 * checks which antennas actually *are* connected. */785 if (priv->chain_noise_data.active_chains)786 active_chains = priv->chain_noise_data.active_chains;787 else788 active_chains = priv->nvm_data->valid_rx_ant;789 790 if (priv->lib->bt_params &&791 priv->lib->bt_params->advanced_bt_coexist &&792 (priv->bt_full_concurrent ||793 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {794 /*795 * only use chain 'A' in bt high traffic load or796 * full concurrency mode797 */798 active_chains = first_antenna(active_chains);799 }800 801 rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;802 803 /* How many receivers should we use? */804 active_rx_cnt = iwl_get_active_rx_chain_count(priv);805 idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);806 807 808 /* correct rx chain count according hw settings809 * and chain noise calibration810 */811 valid_rx_cnt = iwl_count_chain_bitmap(active_chains);812 if (valid_rx_cnt < active_rx_cnt)813 active_rx_cnt = valid_rx_cnt;814 815 if (valid_rx_cnt < idle_rx_cnt)816 idle_rx_cnt = valid_rx_cnt;817 818 rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;819 rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;820 821 ctx->staging.rx_chain = cpu_to_le16(rx_chain);822 823 if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)824 ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;825 else826 ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;827 828 IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",829 ctx->staging.rx_chain,830 active_rx_cnt, idle_rx_cnt);831 832 WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||833 active_rx_cnt < idle_rx_cnt);834}835 836u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)837{838 int i;839 u8 ind = ant;840 841 if (priv->band == NL80211_BAND_2GHZ &&842 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)843 return 0;844 845 for (i = 0; i < RATE_ANT_NUM - 1; i++) {846 ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;847 if (valid & BIT(ind))848 return ind;849 }850 return ant;851}852 853#ifdef CONFIG_PM_SLEEP854static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)855{856 int i;857 858 for (i = 0; i < IWLAGN_P1K_SIZE; i++)859 out[i] = cpu_to_le16(p1k[i]);860}861 862struct wowlan_key_data {863 struct iwl_rxon_context *ctx;864 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;865 struct iwlagn_wowlan_tkip_params_cmd *tkip;866 const u8 *bssid;867 bool error, use_rsc_tsc, use_tkip;868};869 870 871static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,872 struct ieee80211_vif *vif,873 struct ieee80211_sta *sta,874 struct ieee80211_key_conf *key,875 void *_data)876{877 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);878 struct wowlan_key_data *data = _data;879 struct iwl_rxon_context *ctx = data->ctx;880 struct aes_sc *aes_sc, *aes_tx_sc = NULL;881 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;882 struct iwlagn_p1k_cache *rx_p1ks;883 u8 *rx_mic_key;884 struct ieee80211_key_seq seq;885 u32 cur_rx_iv32 = 0;886 u16 p1k[IWLAGN_P1K_SIZE];887 int ret, i;888 889 mutex_lock(&priv->mutex);890 891 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||892 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&893 !sta && !ctx->key_mapping_keys)894 ret = iwl_set_default_wep_key(priv, ctx, key);895 else896 ret = iwl_set_dynamic_key(priv, ctx, key, sta);897 898 if (ret) {899 IWL_ERR(priv, "Error setting key during suspend!\n");900 data->error = true;901 }902 903 switch (key->cipher) {904 case WLAN_CIPHER_SUITE_TKIP:905 if (sta) {906 u64 pn64;907 908 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 pn64 = atomic64_read(&key->tx_pn);914 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));915 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));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 and934 * 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 u64 pn64;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 pn64 = atomic64_read(&key->tx_pn);967 aes_tx_sc->pn = cpu_to_le64(pn64);968 } else969 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;970 971 /*972 * For non-QoS this relies on the fact that both the uCode and973 * mac80211 use TID 0 for checking the IV in the frames.974 */975 for (i = 0; i < IWLAGN_NUM_RSC; i++) {976 u8 *pn = seq.ccmp.pn;977 978 ieee80211_get_key_rx_seq(key, i, &seq);979 aes_sc[i].pn = cpu_to_le64(980 (u64)pn[5] |981 ((u64)pn[4] << 8) |982 ((u64)pn[3] << 16) |983 ((u64)pn[2] << 24) |984 ((u64)pn[1] << 32) |985 ((u64)pn[0] << 40));986 }987 data->use_rsc_tsc = true;988 break;989 }990 991 mutex_unlock(&priv->mutex);992}993 994int iwlagn_send_patterns(struct iwl_priv *priv,995 struct cfg80211_wowlan *wowlan)996{997 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;998 struct iwl_host_cmd cmd = {999 .id = REPLY_WOWLAN_PATTERNS,1000 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,1001 };1002 int i, err;1003 1004 if (!wowlan->n_patterns)1005 return 0;1006 1007 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);1008 1009 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);1010 if (!pattern_cmd)1011 return -ENOMEM;1012 1013 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);1014 1015 for (i = 0; i < wowlan->n_patterns; i++) {1016 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);1017 1018 memcpy(&pattern_cmd->patterns[i].mask,1019 wowlan->patterns[i].mask, mask_len);1020 memcpy(&pattern_cmd->patterns[i].pattern,1021 wowlan->patterns[i].pattern,1022 wowlan->patterns[i].pattern_len);1023 pattern_cmd->patterns[i].mask_size = mask_len;1024 pattern_cmd->patterns[i].pattern_size =1025 wowlan->patterns[i].pattern_len;1026 }1027 1028 cmd.data[0] = pattern_cmd;1029 err = iwl_dvm_send_cmd(priv, &cmd);1030 kfree(pattern_cmd);1031 return err;1032}1033 1034int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan)1035{1036 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;1037 struct iwl_rxon_cmd rxon;1038 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];1039 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;1040 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};1041 struct iwlagn_d3_config_cmd d3_cfg_cmd = {1042 /*1043 * Program the minimum sleep time to 10 seconds, as many1044 * platforms have issues processing a wakeup signal while1045 * still being in the process of suspending.1046 */1047 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),1048 };1049 struct wowlan_key_data key_data = {1050 .ctx = ctx,1051 .bssid = ctx->active.bssid_addr,1052 .use_rsc_tsc = false,1053 .tkip = &tkip_cmd,1054 .use_tkip = false,1055 };1056 int ret, i;1057 u16 seq;1058 1059 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);1060 if (!key_data.rsc_tsc)1061 return -ENOMEM;1062 1063 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));1064 1065 /*1066 * We know the last used seqno, and the uCode expects to know that1067 * one, it will increment before TX.1068 */1069 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;1070 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);1071 1072 /*1073 * For QoS counters, we store the one to use next, so subtract 0x101074 * since the uCode will add 0x10 before using the value.1075 */1076 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {1077 seq = priv->tid_data[IWL_AP_ID][i].seq_number;1078 seq -= 0x10;1079 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);1080 }1081 1082 if (wowlan->disconnect)1083 wakeup_filter_cmd.enabled |=1084 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |1085 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);1086 if (wowlan->magic_pkt)1087 wakeup_filter_cmd.enabled |=1088 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);1089 if (wowlan->gtk_rekey_failure)1090 wakeup_filter_cmd.enabled |=1091 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);1092 if (wowlan->eap_identity_req)1093 wakeup_filter_cmd.enabled |=1094 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);1095 if (wowlan->four_way_handshake)1096 wakeup_filter_cmd.enabled |=1097 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);1098 if (wowlan->n_patterns)1099 wakeup_filter_cmd.enabled |=1100 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);1101 1102 if (wowlan->rfkill_release)1103 d3_cfg_cmd.wakeup_flags |=1104 cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL);1105 1106 iwl_scan_cancel_timeout(priv, 200);1107 1108 memcpy(&rxon, &ctx->active, sizeof(rxon));1109 1110 priv->ucode_loaded = false;1111 iwl_trans_stop_device(priv->trans);1112 ret = iwl_trans_start_hw(priv->trans);1113 if (ret)1114 goto out;1115 1116 priv->wowlan = true;1117 1118 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);1119 if (ret)1120 goto out;1121 1122 /* now configure WoWLAN ucode */1123 ret = iwl_alive_start(priv);1124 if (ret)1125 goto out;1126 1127 memcpy(&ctx->staging, &rxon, sizeof(rxon));1128 ret = iwlagn_commit_rxon(priv, ctx);1129 if (ret)1130 goto out;1131 1132 ret = iwl_power_update_mode(priv, true);1133 if (ret)1134 goto out;1135 1136 if (!iwlwifi_mod_params.swcrypto) {1137 /* mark all keys clear */1138 priv->ucode_key_table = 0;1139 ctx->key_mapping_keys = 0;1140 1141 /*1142 * This needs to be unlocked due to lock ordering1143 * constraints. Since we're in the suspend path1144 * that isn't really a problem though.1145 */1146 mutex_unlock(&priv->mutex);1147 ieee80211_iter_keys(priv->hw, ctx->vif,1148 iwlagn_wowlan_program_keys,1149 &key_data);1150 mutex_lock(&priv->mutex);1151 if (key_data.error) {1152 ret = -EIO;1153 goto out;1154 }1155 1156 if (key_data.use_rsc_tsc) {1157 struct iwl_host_cmd rsc_tsc_cmd = {1158 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,1159 .data[0] = key_data.rsc_tsc,1160 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,1161 .len[0] = sizeof(*key_data.rsc_tsc),1162 };1163 1164 ret = iwl_dvm_send_cmd(priv, &rsc_tsc_cmd);1165 if (ret)1166 goto out;1167 }1168 1169 if (key_data.use_tkip) {1170 ret = iwl_dvm_send_cmd_pdu(priv,1171 REPLY_WOWLAN_TKIP_PARAMS,1172 0, sizeof(tkip_cmd),1173 &tkip_cmd);1174 if (ret)1175 goto out;1176 }1177 1178 if (priv->have_rekey_data) {1179 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));1180 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);1181 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);1182 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);1183 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);1184 kek_kck_cmd.replay_ctr = priv->replay_ctr;1185 1186 ret = iwl_dvm_send_cmd_pdu(priv,1187 REPLY_WOWLAN_KEK_KCK_MATERIAL,1188 0, sizeof(kek_kck_cmd),1189 &kek_kck_cmd);1190 if (ret)1191 goto out;1192 }1193 }1194 1195 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, 0,1196 sizeof(d3_cfg_cmd), &d3_cfg_cmd);1197 if (ret)1198 goto out;1199 1200 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER,1201 0, sizeof(wakeup_filter_cmd),1202 &wakeup_filter_cmd);1203 if (ret)1204 goto out;1205 1206 ret = iwlagn_send_patterns(priv, wowlan);1207 out:1208 kfree(key_data.rsc_tsc);1209 return ret;1210}1211#endif1212 1213int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)1214{1215 if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) {1216 IWL_WARN(priv, "Not sending command - %s KILL\n",1217 iwl_is_rfkill(priv) ? "RF" : "CT");1218 return -EIO;1219 }1220 1221 if (test_bit(STATUS_FW_ERROR, &priv->status)) {1222 IWL_ERR(priv, "Command %s failed: FW Error\n",1223 iwl_get_cmd_string(priv->trans, cmd->id));1224 return -EIO;1225 }1226 1227 /*1228 * This can happen upon FW ASSERT: we clear the STATUS_FW_ERROR flag1229 * in iwl_down but cancel the workers only later.1230 */1231 if (!priv->ucode_loaded) {1232 IWL_ERR(priv, "Fw not loaded - dropping CMD: %x\n", cmd->id);1233 return -EIO;1234 }1235 1236 /*1237 * Synchronous commands from this op-mode must hold1238 * the mutex, this ensures we don't try to send two1239 * (or more) synchronous commands at a time.1240 */1241 if (!(cmd->flags & CMD_ASYNC))1242 lockdep_assert_held(&priv->mutex);1243 1244 return iwl_trans_send_cmd(priv->trans, cmd);1245}1246 1247int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id,1248 u32 flags, u16 len, const void *data)1249{1250 struct iwl_host_cmd cmd = {1251 .id = id,1252 .len = { len, },1253 .data = { data, },1254 .flags = flags,1255 };1256 1257 return iwl_dvm_send_cmd(priv, &cmd);1258}1259