1// SPDX-License-Identifier: GPL-2.0-only 2/****************************************************************************** 3 * 4 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. 5 * 6 * Contact Information: 7 * Intel Linux Wireless <linuxwifi@intel.com> 8 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 9 * 10 *****************************************************************************/ 11#include <linux/etherdevice.h> 12#include <linux/kernel.h> 13#include <linux/module.h> 14#include <linux/sched.h> 15#include <net/mac80211.h> 16 17#include "iwl-io.h" 18#include "iwl-agn-hw.h" 19#include "iwl-trans.h" 20#include "iwl-modparams.h" 21 22#include "dev.h" 23#include "agn.h" 24 25int iwlagn_hw_valid_rtc_data_addr(u32 addr) 26{ 27 return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) && 28 (addr < IWLAGN_RTC_DATA_UPPER_BOUND); 29} 30 31int iwlagn_send_tx_power(struct iwl_priv *priv) 32{ 33 struct iwlagn_tx_power_dbm_cmd tx_power_cmd; 34 u8 tx_ant_cfg_cmd; 35 36 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status), 37 "TX Power requested while scanning!\n")) 38 return -EAGAIN; 39 40 /* half dBm need to multiply */ 41 tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt); 42 43 if (tx_power_cmd.global_lmt > priv->nvm_data->max_tx_pwr_half_dbm) { 44 /* 45 * For the newer devices which using enhanced/extend tx power 46 * table in EEPROM, the format is in half dBm. driver need to 47 * convert to dBm format before report to mac80211. 48 * By doing so, there is a possibility of 1/2 dBm resolution 49 * lost. driver will perform "round-up" operation before 50 * reporting, but it will cause 1/2 dBm tx power over the 51 * regulatory limit. Perform the checking here, if the 52 * "tx_power_user_lmt" is higher than EEPROM value (in 53 * half-dBm format), lower the tx power based on EEPROM 54 */ 55 tx_power_cmd.global_lmt = 56 priv->nvm_data->max_tx_pwr_half_dbm; 57 } 58 tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED; 59 tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO; 60 61 if (IWL_UCODE_API(priv->fw->ucode_ver) == 1) 62 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1; 63 else 64 tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD; 65 66 return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, 0, 67 sizeof(tx_power_cmd), &tx_power_cmd); 68} 69 70void iwlagn_temperature(struct iwl_priv *priv) 71{ 72 lockdep_assert_held(&priv->statistics.lock); 73 74 /* store temperature from correct statistics (in Celsius) */ 75 priv->temperature = le32_to_cpu(priv->statistics.common.temperature); 76 iwl_tt_handler(priv); 77} 78 79int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum nl80211_band band) 80{ 81 int idx = 0; 82 int band_offset = 0; 83 84 /* HT rate format: mac80211 wants an MCS number, which is just LSB */ 85 if (rate_n_flags & RATE_MCS_HT_MSK) { 86 idx = (rate_n_flags & 0xff); 87 return idx; 88 /* Legacy rate format, search for match in table */ 89 } else { 90 if (band == NL80211_BAND_5GHZ) 91 band_offset = IWL_FIRST_OFDM_RATE; 92 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 93 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) 94 return idx - band_offset; 95 } 96 97 return -1; 98} 99 100int iwlagn_manage_ibss_station(struct iwl_priv *priv, 101 struct ieee80211_vif *vif, bool add) 102{ 103 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; 104 105 if (add) 106 return iwlagn_add_bssid_station(priv, vif_priv->ctx, 107 vif->bss_conf.bssid, 108 &vif_priv->ibss_bssid_sta_id); 109 return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id, 110 vif->bss_conf.bssid); 111} 112 113/* 114 * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode 115 * 116 * pre-requirements: 117 * 1. acquire mutex before calling 118 * 2. make sure rf is on and not in exit state 119 */ 120int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk) 121{ 122 struct iwl_txfifo_flush_cmd_v3 flush_cmd_v3 = { 123 .flush_control = cpu_to_le16(IWL_DROP_ALL), 124 }; 125 struct iwl_txfifo_flush_cmd_v2 flush_cmd_v2 = { 126 .flush_control = cpu_to_le16(IWL_DROP_ALL), 127 }; 128 129 u32 queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK | 130 IWL_SCD_BE_MSK | IWL_SCD_BK_MSK | IWL_SCD_MGMT_MSK; 131 132 if ((priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))) 133 queue_control |= IWL_PAN_SCD_VO_MSK | IWL_PAN_SCD_VI_MSK | 134 IWL_PAN_SCD_BE_MSK | IWL_PAN_SCD_BK_MSK | 135 IWL_PAN_SCD_MGMT_MSK | 136 IWL_PAN_SCD_MULTICAST_MSK; 137 138 if (priv->nvm_data->sku_cap_11n_enable) 139 queue_control |= IWL_AGG_TX_QUEUE_MSK; 140 141 if (scd_q_msk) 142 queue_control = scd_q_msk; 143 144 IWL_DEBUG_INFO(priv, "queue control: 0x%x\n", queue_control); 145 flush_cmd_v3.queue_control = cpu_to_le32(queue_control); 146 flush_cmd_v2.queue_control = cpu_to_le16((u16)queue_control); 147 148 if (IWL_UCODE_API(priv->fw->ucode_ver) > 2) 149 return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0, 150 sizeof(flush_cmd_v3), 151 &flush_cmd_v3); 152 return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0, 153 sizeof(flush_cmd_v2), &flush_cmd_v2); 154} 155 156void iwlagn_dev_txfifo_flush(struct iwl_priv *priv) 157{ 158 mutex_lock(&priv->mutex); 159 ieee80211_stop_queues(priv->hw); 160 if (iwlagn_txfifo_flush(priv, 0)) { 161 IWL_ERR(priv, "flush request fail\n"); 162 goto done; 163 } 164 IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n"); 165 iwl_trans_wait_tx_queues_empty(priv->trans, 0xffffffff); 166done: 167 ieee80211_wake_queues(priv->hw); 168 mutex_unlock(&priv->mutex); 169} 170 171/* 172 * BT coex 173 */ 174/* Notmal TDM */ 175static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = { 176 cpu_to_le32(0xaaaaaaaa), 177 cpu_to_le32(0xaaaaaaaa), 178 cpu_to_le32(0xaeaaaaaa), 179 cpu_to_le32(0xaaaaaaaa), 180 cpu_to_le32(0xcc00ff28), 181 cpu_to_le32(0x0000aaaa), 182 cpu_to_le32(0xcc00aaaa), 183 cpu_to_le32(0x0000aaaa), 184 cpu_to_le32(0xc0004000), 185 cpu_to_le32(0x00004000), 186 cpu_to_le32(0xf0005000), 187 cpu_to_le32(0xf0005000), 188}; 189 190/* Full concurrency */ 191static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = { 192 cpu_to_le32(0xaaaaaaaa), 193 cpu_to_le32(0xaaaaaaaa), 194 cpu_to_le32(0xaaaaaaaa), 195 cpu_to_le32(0xaaaaaaaa), 196 cpu_to_le32(0xaaaaaaaa), 197 cpu_to_le32(0xaaaaaaaa), 198 cpu_to_le32(0xaaaaaaaa), 199 cpu_to_le32(0xaaaaaaaa), 200 cpu_to_le32(0x00000000), 201 cpu_to_le32(0x00000000), 202 cpu_to_le32(0x00000000), 203 cpu_to_le32(0x00000000), 204}; 205 206void iwlagn_send_advance_bt_config(struct iwl_priv *priv) 207{ 208 struct iwl_basic_bt_cmd basic = { 209 .max_kill = IWLAGN_BT_MAX_KILL_DEFAULT, 210 .bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT, 211 .bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT, 212 .bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT, 213 }; 214 struct iwl_bt_cmd_v1 bt_cmd_v1; 215 struct iwl_bt_cmd_v2 bt_cmd_v2; 216 int ret; 217 218 BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) != 219 sizeof(basic.bt3_lookup_table)); 220 221 if (priv->lib->bt_params) { 222 /* 223 * newer generation of devices (2000 series and newer) 224 * use the version 2 of the bt command 225 * we need to make sure sending the host command 226 * with correct data structure to avoid uCode assert 227 */ 228 if (priv->lib->bt_params->bt_session_2) { 229 bt_cmd_v2.prio_boost = cpu_to_le32( 230 priv->lib->bt_params->bt_prio_boost); 231 bt_cmd_v2.tx_prio_boost = 0; 232 bt_cmd_v2.rx_prio_boost = 0; 233 } else { 234 /* older version only has 8 bits */ 235 WARN_ON(priv->lib->bt_params->bt_prio_boost & ~0xFF); 236 bt_cmd_v1.prio_boost = 237 priv->lib->bt_params->bt_prio_boost; 238 bt_cmd_v1.tx_prio_boost = 0; 239 bt_cmd_v1.rx_prio_boost = 0; 240 } 241 } else { 242 IWL_ERR(priv, "failed to construct BT Coex Config\n"); 243 return; 244 } 245 246 /* 247 * Possible situations when BT needs to take over for receive, 248 * at the same time where STA needs to response to AP's frame(s), 249 * reduce the tx power of the required response frames, by that, 250 * allow the concurrent BT receive & WiFi transmit 251 * (BT - ANT A, WiFi -ANT B), without interference to one another 252 * 253 * Reduced tx power apply to control frames only (ACK/Back/CTS) 254 * when indicated by the BT config command 255 */ 256 basic.kill_ack_mask = priv->kill_ack_mask; 257 basic.kill_cts_mask = priv->kill_cts_mask; 258 if (priv->reduced_txpower) 259 basic.reduce_txpower = IWLAGN_BT_REDUCED_TX_PWR; 260 basic.valid = priv->bt_valid; 261 262 /* 263 * Configure BT coex mode to "no coexistence" when the 264 * user disabled BT coexistence, we have no interface 265 * (might be in monitor mode), or the interface is in 266 * IBSS mode (no proper uCode support for coex then). 267 */ 268 if (!iwlwifi_mod_params.bt_coex_active || 269 priv->iw_mode == NL80211_IFTYPE_ADHOC) { 270 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED; 271 } else { 272 basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W << 273 IWLAGN_BT_FLAG_COEX_MODE_SHIFT; 274 275 if (!priv->bt_enable_pspoll) 276 basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE; 277 else 278 basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE; 279 280 if (priv->bt_ch_announce) 281 basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION; 282 IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags); 283 } 284 priv->bt_enable_flag = basic.flags; 285 if (priv->bt_full_concurrent) 286 memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup, 287 sizeof(iwlagn_concurrent_lookup)); 288 else 289 memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup, 290 sizeof(iwlagn_def_3w_lookup)); 291 292 IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n", 293 basic.flags ? "active" : "disabled", 294 priv->bt_full_concurrent ? 295 "full concurrency" : "3-wire"); 296 297 if (priv->lib->bt_params->bt_session_2) { 298 memcpy(&bt_cmd_v2.basic, &basic, 299 sizeof(basic)); 300 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, 301 0, sizeof(bt_cmd_v2), &bt_cmd_v2); 302 } else { 303 memcpy(&bt_cmd_v1.basic, &basic, 304 sizeof(basic)); 305 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, 306 0, sizeof(bt_cmd_v1), &bt_cmd_v1); 307 } 308 if (ret) 309 IWL_ERR(priv, "failed to send BT Coex Config\n"); 310 311} 312 313void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena) 314{ 315 struct iwl_rxon_context *ctx, *found_ctx = NULL; 316 bool found_ap = false; 317 318 lockdep_assert_held(&priv->mutex); 319 320 /* Check whether AP or GO mode is active. */ 321 if (rssi_ena) { 322 for_each_context(priv, ctx) { 323 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP && 324 iwl_is_associated_ctx(ctx)) { 325 found_ap = true; 326 break; 327 } 328 } 329 } 330 331 /* 332 * If disable was received or If GO/AP mode, disable RSSI 333 * measurements. 334 */ 335 if (!rssi_ena || found_ap) { 336 if (priv->cur_rssi_ctx) { 337 ctx = priv->cur_rssi_ctx; 338 ieee80211_disable_rssi_reports(ctx->vif); 339 priv->cur_rssi_ctx = NULL; 340 } 341 return; 342 } 343 344 /* 345 * If rssi measurements need to be enabled, consider all cases now. 346 * Figure out how many contexts are active. 347 */ 348 for_each_context(priv, ctx) { 349 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION && 350 iwl_is_associated_ctx(ctx)) { 351 found_ctx = ctx; 352 break; 353 } 354 } 355 356 /* 357 * rssi monitor already enabled for the correct interface...nothing 358 * to do. 359 */ 360 if (found_ctx == priv->cur_rssi_ctx) 361 return; 362 363 /* 364 * Figure out if rssi monitor is currently enabled, and needs 365 * to be changed. If rssi monitor is already enabled, disable 366 * it first else just enable rssi measurements on the 367 * interface found above. 368 */ 369 if (priv->cur_rssi_ctx) { 370 ctx = priv->cur_rssi_ctx; 371 if (ctx->vif) 372 ieee80211_disable_rssi_reports(ctx->vif); 373 } 374 375 priv->cur_rssi_ctx = found_ctx; 376 377 if (!found_ctx) 378 return; 379 380 ieee80211_enable_rssi_reports(found_ctx->vif, 381 IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD, 382 IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD); 383} 384 385static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg) 386{ 387 return (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >> 388 BT_UART_MSG_FRAME3SCOESCO_POS; 389} 390 391static void iwlagn_bt_traffic_change_work(struct work_struct *work) 392{ 393 struct iwl_priv *priv = 394 container_of(work, struct iwl_priv, bt_traffic_change_work); 395 struct iwl_rxon_context *ctx; 396 int smps_request = -1; 397 398 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) { 399 /* bt coex disabled */ 400 return; 401 } 402 403 /* 404 * Note: bt_traffic_load can be overridden by scan complete and 405 * coex profile notifications. Ignore that since only bad consequence 406 * can be not matching debug print with actual state. 407 */ 408 IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n", 409 priv->bt_traffic_load); 410 411 switch (priv->bt_traffic_load) { 412 case IWL_BT_COEX_TRAFFIC_LOAD_NONE: 413 if (priv->bt_status) 414 smps_request = IEEE80211_SMPS_DYNAMIC; 415 else 416 smps_request = IEEE80211_SMPS_AUTOMATIC; 417 break; 418 case IWL_BT_COEX_TRAFFIC_LOAD_LOW: 419 smps_request = IEEE80211_SMPS_DYNAMIC; 420 break; 421 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: 422 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: 423 smps_request = IEEE80211_SMPS_STATIC; 424 break; 425 default: 426 IWL_ERR(priv, "Invalid BT traffic load: %d\n", 427 priv->bt_traffic_load); 428 break; 429 } 430 431 mutex_lock(&priv->mutex); 432 433 /* 434 * We can not send command to firmware while scanning. When the scan 435 * complete we will schedule this work again. We do check with mutex 436 * locked to prevent new scan request to arrive. We do not check 437 * STATUS_SCANNING to avoid race when queue_work two times from 438 * different notifications, but quit and not perform any work at all. 439 */ 440 if (test_bit(STATUS_SCAN_HW, &priv->status)) 441 goto out; 442 443 iwl_update_chain_flags(priv); 444 445 if (smps_request != -1) { 446 priv->current_ht_config.smps = smps_request; 447 for_each_context(priv, ctx) { 448 if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION) 449 ieee80211_request_smps(ctx->vif, smps_request); 450 } 451 } 452 453 /* 454 * Dynamic PS poll related functionality. Adjust RSSI measurements if 455 * necessary. 456 */ 457 iwlagn_bt_coex_rssi_monitor(priv); 458out: 459 mutex_unlock(&priv->mutex); 460} 461 462/* 463 * If BT sco traffic, and RSSI monitor is enabled, move measurements to the 464 * correct interface or disable it if this is the last interface to be 465 * removed. 466 */ 467void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv) 468{ 469 if (priv->bt_is_sco && 470 priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS) 471 iwlagn_bt_adjust_rssi_monitor(priv, true); 472 else 473 iwlagn_bt_adjust_rssi_monitor(priv, false); 474} 475 476static void iwlagn_print_uartmsg(struct iwl_priv *priv, 477 struct iwl_bt_uart_msg *uart_msg) 478{ 479 IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, " 480 "Update Req = 0x%X\n", 481 (BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >> 482 BT_UART_MSG_FRAME1MSGTYPE_POS, 483 (BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >> 484 BT_UART_MSG_FRAME1SSN_POS, 485 (BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >> 486 BT_UART_MSG_FRAME1UPDATEREQ_POS); 487 488 IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, " 489 "Chl_SeqN = 0x%X, In band = 0x%X\n", 490 (BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >> 491 BT_UART_MSG_FRAME2OPENCONNECTIONS_POS, 492 (BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >> 493 BT_UART_MSG_FRAME2TRAFFICLOAD_POS, 494 (BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >> 495 BT_UART_MSG_FRAME2CHLSEQN_POS, 496 (BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >> 497 BT_UART_MSG_FRAME2INBAND_POS); 498 499 IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, " 500 "ACL = 0x%X, Master = 0x%X, OBEX = 0x%X\n", 501 (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >> 502 BT_UART_MSG_FRAME3SCOESCO_POS, 503 (BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >> 504 BT_UART_MSG_FRAME3SNIFF_POS, 505 (BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >> 506 BT_UART_MSG_FRAME3A2DP_POS, 507 (BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >> 508 BT_UART_MSG_FRAME3ACL_POS, 509 (BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >> 510 BT_UART_MSG_FRAME3MASTER_POS, 511 (BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >> 512 BT_UART_MSG_FRAME3OBEX_POS); 513 514 IWL_DEBUG_COEX(priv, "Idle duration = 0x%X\n", 515 (BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >> 516 BT_UART_MSG_FRAME4IDLEDURATION_POS); 517 518 IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, " 519 "eSCO Retransmissions = 0x%X\n", 520 (BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >> 521 BT_UART_MSG_FRAME5TXACTIVITY_POS, 522 (BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >> 523 BT_UART_MSG_FRAME5RXACTIVITY_POS, 524 (BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >> 525 BT_UART_MSG_FRAME5ESCORETRANSMIT_POS); 526 527 IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X\n", 528 (BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >> 529 BT_UART_MSG_FRAME6SNIFFINTERVAL_POS, 530 (BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >> 531 BT_UART_MSG_FRAME6DISCOVERABLE_POS); 532 533 IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = " 534 "0x%X, Inquiry = 0x%X, Connectable = 0x%X\n", 535 (BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >> 536 BT_UART_MSG_FRAME7SNIFFACTIVITY_POS, 537 (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >> 538 BT_UART_MSG_FRAME7PAGE_POS, 539 (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >> 540 BT_UART_MSG_FRAME7INQUIRY_POS, 541 (BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >> 542 BT_UART_MSG_FRAME7CONNECTABLE_POS); 543} 544 545static bool iwlagn_set_kill_msk(struct iwl_priv *priv, 546 struct iwl_bt_uart_msg *uart_msg) 547{ 548 bool need_update = false; 549 u8 kill_msk = IWL_BT_KILL_REDUCE; 550 static const __le32 bt_kill_ack_msg[3] = { 551 IWLAGN_BT_KILL_ACK_MASK_DEFAULT, 552 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO, 553 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE}; 554 static const __le32 bt_kill_cts_msg[3] = { 555 IWLAGN_BT_KILL_CTS_MASK_DEFAULT, 556 IWLAGN_BT_KILL_ACK_CTS_MASK_SCO, 557 IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE}; 558 559 if (!priv->reduced_txpower) 560 kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) 561 ? IWL_BT_KILL_OVERRIDE : IWL_BT_KILL_DEFAULT; 562 if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] || 563 priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) { 564 priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK; 565 priv->kill_ack_mask = bt_kill_ack_msg[kill_msk]; 566 priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK; 567 priv->kill_cts_mask = bt_kill_cts_msg[kill_msk]; 568 need_update = true; 569 } 570 return need_update; 571} 572 573/* 574 * Upon RSSI changes, sends a bt config command with following changes 575 * 1. enable/disable "reduced control frames tx power 576 * 2. update the "kill)ack_mask" and "kill_cts_mask" 577 * 578 * If "reduced tx power" is enabled, uCode shall 579 * 1. ACK/Back/CTS rate shall reduced to 6Mbps 580 * 2. not use duplciate 20/40MHz mode 581 */ 582static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv, 583 struct iwl_bt_uart_msg *uart_msg) 584{ 585 bool need_update = false; 586 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; 587 int ave_rssi; 588 589 if (!ctx->vif || (ctx->vif->type != NL80211_IFTYPE_STATION)) { 590 IWL_DEBUG_INFO(priv, "BSS ctx not active or not in sta mode\n"); 591 return false; 592 } 593 594 ave_rssi = ieee80211_ave_rssi(ctx->vif); 595 if (!ave_rssi) { 596 /* no rssi data, no changes to reduce tx power */ 597 IWL_DEBUG_COEX(priv, "no rssi data available\n"); 598 return need_update; 599 } 600 if (!priv->reduced_txpower && 601 !iwl_is_associated(priv, IWL_RXON_CTX_PAN) && 602 (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) && 603 (uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK | 604 BT_UART_MSG_FRAME3OBEX_MSK)) && 605 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK | 606 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) { 607 /* enabling reduced tx power */ 608 priv->reduced_txpower = true; 609 priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR; 610 need_update = true; 611 } else if (priv->reduced_txpower && 612 (iwl_is_associated(priv, IWL_RXON_CTX_PAN) || 613 (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) || 614 (uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK | 615 BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) || 616 !(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK | 617 BT_UART_MSG_FRAME3OBEX_MSK)))) { 618 /* disable reduced tx power */ 619 priv->reduced_txpower = false; 620 priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR; 621 need_update = true; 622 } 623 624 return need_update; 625} 626 627static void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv, 628 struct iwl_rx_cmd_buffer *rxb) 629{ 630 struct iwl_rx_packet *pkt = rxb_addr(rxb); 631 struct iwl_bt_coex_profile_notif *coex = (void *)pkt->data; 632 struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg; 633 634 if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) { 635 /* bt coex disabled */ 636 return; 637 } 638 639 IWL_DEBUG_COEX(priv, "BT Coex notification:\n"); 640 IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status); 641 IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load); 642 IWL_DEBUG_COEX(priv, " CI compliance: %d\n", 643 coex->bt_ci_compliance); 644 iwlagn_print_uartmsg(priv, uart_msg); 645 646 priv->last_bt_traffic_load = priv->bt_traffic_load; 647 priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg); 648 649 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { 650 if (priv->bt_status != coex->bt_status || 651 priv->last_bt_traffic_load != coex->bt_traffic_load) { 652 if (coex->bt_status) { 653 /* BT on */ 654 if (!priv->bt_ch_announce) 655 priv->bt_traffic_load = 656 IWL_BT_COEX_TRAFFIC_LOAD_HIGH; 657 else 658 priv->bt_traffic_load = 659 coex->bt_traffic_load; 660 } else { 661 /* BT off */ 662 priv->bt_traffic_load = 663 IWL_BT_COEX_TRAFFIC_LOAD_NONE; 664 } 665 priv->bt_status = coex->bt_status; 666 queue_work(priv->workqueue, 667 &priv->bt_traffic_change_work); 668 } 669 } 670 671 /* schedule to send runtime bt_config */ 672 /* check reduce power before change ack/cts kill mask */ 673 if (iwlagn_fill_txpower_mode(priv, uart_msg) || 674 iwlagn_set_kill_msk(priv, uart_msg)) 675 queue_work(priv->workqueue, &priv->bt_runtime_config); 676 677 678 /* FIXME: based on notification, adjust the prio_boost */ 679 680 priv->bt_ci_compliance = coex->bt_ci_compliance; 681} 682 683void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv) 684{ 685 priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] = 686 iwlagn_bt_coex_profile_notif; 687} 688 689void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv) 690{ 691 INIT_WORK(&priv->bt_traffic_change_work, 692 iwlagn_bt_traffic_change_work); 693} 694 695void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv) 696{ 697 cancel_work_sync(&priv->bt_traffic_change_work); 698} 699 700static bool is_single_rx_stream(struct iwl_priv *priv) 701{ 702 return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC || 703 priv->current_ht_config.single_chain_sufficient; 704} 705 706#define IWL_NUM_RX_CHAINS_MULTIPLE 3 707#define IWL_NUM_RX_CHAINS_SINGLE 2 708#define IWL_NUM_IDLE_CHAINS_DUAL 2 709#define IWL_NUM_IDLE_CHAINS_SINGLE 1 710 711/* 712 * Determine how many receiver/antenna chains to use. 713 * 714 * More provides better reception via diversity. Fewer saves power 715 * at the expense of throughput, but only when not in powersave to 716 * start with. 717 * 718 * MIMO (dual stream) requires at least 2, but works better with 3. 719 * This does not determine *which* chains to use, just how many. 720 */ 721static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) 722{ 723 if (priv->lib->bt_params && 724 priv->lib->bt_params->advanced_bt_coexist && 725 (priv->bt_full_concurrent || 726 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { 727 /* 728 * only use chain 'A' in bt high traffic load or 729 * full concurrency mode 730 */ 731 return IWL_NUM_RX_CHAINS_SINGLE; 732 } 733 /* # of Rx chains to use when expecting MIMO. */ 734 if (is_single_rx_stream(priv)) 735 return IWL_NUM_RX_CHAINS_SINGLE; 736 else 737 return IWL_NUM_RX_CHAINS_MULTIPLE; 738} 739 740/* 741 * When we are in power saving mode, unless device support spatial 742 * multiplexing power save, use the active count for rx chain count. 743 */ 744static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) 745{ 746 /* # Rx chains when idling, depending on SMPS mode */ 747 switch (priv->current_ht_config.smps) { 748 case IEEE80211_SMPS_STATIC: 749 case IEEE80211_SMPS_DYNAMIC: 750 return IWL_NUM_IDLE_CHAINS_SINGLE; 751 case IEEE80211_SMPS_AUTOMATIC: 752 case IEEE80211_SMPS_OFF: 753 return active_cnt; 754 default: 755 WARN(1, "invalid SMPS mode %d", 756 priv->current_ht_config.smps); 757 return active_cnt; 758 } 759} 760 761/* up to 4 chains */ 762static u8 iwl_count_chain_bitmap(u32 chain_bitmap) 763{ 764 u8 res; 765 res = (chain_bitmap & BIT(0)) >> 0; 766 res += (chain_bitmap & BIT(1)) >> 1; 767 res += (chain_bitmap & BIT(2)) >> 2; 768 res += (chain_bitmap & BIT(3)) >> 3; 769 return res; 770} 771 772/* 773 * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image 774 * 775 * Selects how many and which Rx receivers/antennas/chains to use. 776 * This should not be used for scan command ... it puts data in wrong place. 777 */ 778void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx) 779{ 780 bool is_single = is_single_rx_stream(priv); 781 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); 782 u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; 783 u32 active_chains; 784 u16 rx_chain; 785 786 /* Tell uCode which antennas are actually connected. 787 * Before first association, we assume all antennas are connected. 788 * Just after first association, iwl_chain_noise_calibration() 789 * checks which antennas actually *are* connected. */ 790 if (priv->chain_noise_data.active_chains) 791 active_chains = priv->chain_noise_data.active_chains; 792 else 793 active_chains = priv->nvm_data->valid_rx_ant; 794 795 if (priv->lib->bt_params && 796 priv->lib->bt_params->advanced_bt_coexist && 797 (priv->bt_full_concurrent || 798 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { 799 /* 800 * only use chain 'A' in bt high traffic load or 801 * full concurrency mode 802 */ 803 active_chains = first_antenna(active_chains); 804 } 805 806 rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; 807 808 /* How many receivers should we use? */ 809 active_rx_cnt = iwl_get_active_rx_chain_count(priv); 810 idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); 811 812 813 /* correct rx chain count according hw settings 814 * and chain noise calibration 815 */ 816 valid_rx_cnt = iwl_count_chain_bitmap(active_chains); 817 if (valid_rx_cnt < active_rx_cnt) 818 active_rx_cnt = valid_rx_cnt; 819 820 if (valid_rx_cnt < idle_rx_cnt) 821 idle_rx_cnt = valid_rx_cnt; 822 823 rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; 824 rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; 825 826 ctx->staging.rx_chain = cpu_to_le16(rx_chain); 827 828 if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) 829 ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; 830 else 831 ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; 832 833 IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", 834 ctx->staging.rx_chain, 835 active_rx_cnt, idle_rx_cnt); 836 837 WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || 838 active_rx_cnt < idle_rx_cnt); 839} 840 841u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid) 842{ 843 int i; 844 u8 ind = ant; 845 846 if (priv->band == NL80211_BAND_2GHZ && 847 priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH) 848 return 0; 849 850 for (i = 0; i < RATE_ANT_NUM - 1; i++) { 851 ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; 852 if (valid & BIT(ind)) 853 return ind; 854 } 855 return ant; 856} 857 858#ifdef CONFIG_PM_SLEEP 859static void iwlagn_convert_p1k(u16 *p1k, __le16 *out) 860{ 861 int i; 862 863 for (i = 0; i < IWLAGN_P1K_SIZE; i++) 864 out[i] = cpu_to_le16(p1k[i]); 865} 866 867struct wowlan_key_data { 868 struct iwl_rxon_context *ctx; 869 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc; 870 struct iwlagn_wowlan_tkip_params_cmd *tkip; 871 const u8 *bssid; 872 bool error, use_rsc_tsc, use_tkip; 873}; 874 875 876static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw, 877 struct ieee80211_vif *vif, 878 struct ieee80211_sta *sta, 879 struct ieee80211_key_conf *key, 880 void *_data) 881{ 882 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); 883 struct wowlan_key_data *data = _data; 884 struct iwl_rxon_context *ctx = data->ctx; 885 struct aes_sc *aes_sc, *aes_tx_sc = NULL; 886 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; 887 struct iwlagn_p1k_cache *rx_p1ks; 888 u8 *rx_mic_key; 889 struct ieee80211_key_seq seq; 890 u32 cur_rx_iv32 = 0; 891 u16 p1k[IWLAGN_P1K_SIZE]; 892 int ret, i; 893 894 mutex_lock(&priv->mutex); 895 896 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || 897 key->cipher == WLAN_CIPHER_SUITE_WEP104) && 898 !sta && !ctx->key_mapping_keys) 899 ret = iwl_set_default_wep_key(priv, ctx, key); 900 else 901 ret = iwl_set_dynamic_key(priv, ctx, key, sta); 902 903 if (ret) { 904 IWL_ERR(priv, "Error setting key during suspend!\n"); 905 data->error = true; 906 } 907 908 switch (key->cipher) { 909 case WLAN_CIPHER_SUITE_TKIP: 910 if (sta) { 911 u64 pn64; 912 913 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; 914 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; 915 916 rx_p1ks = data->tkip->rx_uni; 917 918 pn64 = atomic64_read(&key->tx_pn); 919 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); 920 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); 921 922 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); 923 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k); 924 925 memcpy(data->tkip->mic_keys.tx, 926 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 927 IWLAGN_MIC_KEY_SIZE); 928 929 rx_mic_key = data->tkip->mic_keys.rx_unicast; 930 } else { 931 tkip_sc = 932 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; 933 rx_p1ks = data->tkip->rx_multi; 934 rx_mic_key = data->tkip->mic_keys.rx_mcast; 935 } 936 937 /* 938 * For non-QoS this relies on the fact that both the uCode and 939 * mac80211 use TID 0 (as they need to to avoid replay attacks) 940 * for checking the IV in the frames. 941 */ 942 for (i = 0; i < IWLAGN_NUM_RSC; i++) { 943 ieee80211_get_key_rx_seq(key, i, &seq); 944 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); 945 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); 946 /* wrapping isn't allowed, AP must rekey */ 947 if (seq.tkip.iv32 > cur_rx_iv32) 948 cur_rx_iv32 = seq.tkip.iv32; 949 } 950 951 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k); 952 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k); 953 ieee80211_get_tkip_rx_p1k(key, data->bssid, 954 cur_rx_iv32 + 1, p1k); 955 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k); 956 957 memcpy(rx_mic_key, 958 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 959 IWLAGN_MIC_KEY_SIZE); 960 961 data->use_tkip = true; 962 data->use_rsc_tsc = true; 963 break; 964 case WLAN_CIPHER_SUITE_CCMP: 965 if (sta) { 966 u64 pn64; 967 968 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; 969 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; 970 971 pn64 = atomic64_read(&key->tx_pn); 972 aes_tx_sc->pn = cpu_to_le64(pn64); 973 } else 974 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; 975 976 /* 977 * For non-QoS this relies on the fact that both the uCode and 978 * mac80211 use TID 0 for checking the IV in the frames. 979 */ 980 for (i = 0; i < IWLAGN_NUM_RSC; i++) { 981 u8 *pn = seq.ccmp.pn; 982 983 ieee80211_get_key_rx_seq(key, i, &seq); 984 aes_sc[i].pn = cpu_to_le64( 985 (u64)pn[5] | 986 ((u64)pn[4] << 8) | 987 ((u64)pn[3] << 16) | 988 ((u64)pn[2] << 24) | 989 ((u64)pn[1] << 32) | 990 ((u64)pn[0] << 40)); 991 } 992 data->use_rsc_tsc = true; 993 break; 994 } 995 996 mutex_unlock(&priv->mutex); 997} 998 999int iwlagn_send_patterns(struct iwl_priv *priv, 1000 struct cfg80211_wowlan *wowlan) 1001{ 1002 struct iwlagn_wowlan_patterns_cmd *pattern_cmd; 1003 struct iwl_host_cmd cmd = { 1004 .id = REPLY_WOWLAN_PATTERNS, 1005 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1006 }; 1007 int i, err; 1008 1009 if (!wowlan->n_patterns) 1010 return 0; 1011 1012 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns); 1013 1014 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); 1015 if (!pattern_cmd) 1016 return -ENOMEM; 1017 1018 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); 1019 1020 for (i = 0; i < wowlan->n_patterns; i++) { 1021 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 1022 1023 memcpy(&pattern_cmd->patterns[i].mask, 1024 wowlan->patterns[i].mask, mask_len); 1025 memcpy(&pattern_cmd->patterns[i].pattern, 1026 wowlan->patterns[i].pattern, 1027 wowlan->patterns[i].pattern_len); 1028 pattern_cmd->patterns[i].mask_size = mask_len; 1029 pattern_cmd->patterns[i].pattern_size = 1030 wowlan->patterns[i].pattern_len; 1031 } 1032 1033 cmd.data[0] = pattern_cmd; 1034 err = iwl_dvm_send_cmd(priv, &cmd); 1035 kfree(pattern_cmd); 1036 return err; 1037} 1038 1039int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan) 1040{ 1041 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd; 1042 struct iwl_rxon_cmd rxon; 1043 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; 1044 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd; 1045 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {}; 1046 struct iwlagn_d3_config_cmd d3_cfg_cmd = { 1047 /* 1048 * Program the minimum sleep time to 10 seconds, as many 1049 * platforms have issues processing a wakeup signal while 1050 * still being in the process of suspending. 1051 */ 1052 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), 1053 }; 1054 struct wowlan_key_data key_data = { 1055 .ctx = ctx, 1056 .bssid = ctx->active.bssid_addr, 1057 .use_rsc_tsc = false, 1058 .tkip = &tkip_cmd, 1059 .use_tkip = false, 1060 }; 1061 int ret, i; 1062 u16 seq; 1063 1064 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); 1065 if (!key_data.rsc_tsc) 1066 return -ENOMEM; 1067 1068 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd)); 1069 1070 /* 1071 * We know the last used seqno, and the uCode expects to know that 1072 * one, it will increment before TX. 1073 */ 1074 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ; 1075 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq); 1076 1077 /* 1078 * For QoS counters, we store the one to use next, so subtract 0x10 1079 * since the uCode will add 0x10 before using the value. 1080 */ 1081 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1082 seq = priv->tid_data[IWL_AP_ID][i].seq_number; 1083 seq -= 0x10; 1084 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq); 1085 } 1086 1087 if (wowlan->disconnect) 1088 wakeup_filter_cmd.enabled |= 1089 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | 1090 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE); 1091 if (wowlan->magic_pkt) 1092 wakeup_filter_cmd.enabled |= 1093 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET); 1094 if (wowlan->gtk_rekey_failure) 1095 wakeup_filter_cmd.enabled |= 1096 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL); 1097 if (wowlan->eap_identity_req) 1098 wakeup_filter_cmd.enabled |= 1099 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ); 1100 if (wowlan->four_way_handshake) 1101 wakeup_filter_cmd.enabled |= 1102 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE); 1103 if (wowlan->n_patterns) 1104 wakeup_filter_cmd.enabled |= 1105 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH); 1106 1107 if (wowlan->rfkill_release) 1108 d3_cfg_cmd.wakeup_flags |= 1109 cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL); 1110 1111 iwl_scan_cancel_timeout(priv, 200); 1112 1113 memcpy(&rxon, &ctx->active, sizeof(rxon)); 1114 1115 priv->ucode_loaded = false; 1116 iwl_trans_stop_device(priv->trans); 1117 ret = iwl_trans_start_hw(priv->trans); 1118 if (ret) 1119 goto out; 1120 1121 priv->wowlan = true; 1122 1123 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); 1124 if (ret) 1125 goto out; 1126 1127 /* now configure WoWLAN ucode */ 1128 ret = iwl_alive_start(priv); 1129 if (ret) 1130 goto out; 1131 1132 memcpy(&ctx->staging, &rxon, sizeof(rxon)); 1133 ret = iwlagn_commit_rxon(priv, ctx); 1134 if (ret) 1135 goto out; 1136 1137 ret = iwl_power_update_mode(priv, true); 1138 if (ret) 1139 goto out; 1140 1141 if (!iwlwifi_mod_params.swcrypto) { 1142 /* mark all keys clear */ 1143 priv->ucode_key_table = 0; 1144 ctx->key_mapping_keys = 0; 1145 1146 /* 1147 * This needs to be unlocked due to lock ordering 1148 * constraints. Since we're in the suspend path 1149 * that isn't really a problem though. 1150 */ 1151 mutex_unlock(&priv->mutex); 1152 ieee80211_iter_keys(priv->hw, ctx->vif, 1153 iwlagn_wowlan_program_keys, 1154 &key_data); 1155 mutex_lock(&priv->mutex); 1156 if (key_data.error) { 1157 ret = -EIO; 1158 goto out; 1159 } 1160 1161 if (key_data.use_rsc_tsc) { 1162 struct iwl_host_cmd rsc_tsc_cmd = { 1163 .id = REPLY_WOWLAN_TSC_RSC_PARAMS, 1164 .data[0] = key_data.rsc_tsc, 1165 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1166 .len[0] = sizeof(*key_data.rsc_tsc), 1167 }; 1168 1169 ret = iwl_dvm_send_cmd(priv, &rsc_tsc_cmd); 1170 if (ret) 1171 goto out; 1172 } 1173 1174 if (key_data.use_tkip) { 1175 ret = iwl_dvm_send_cmd_pdu(priv, 1176 REPLY_WOWLAN_TKIP_PARAMS, 1177 0, sizeof(tkip_cmd), 1178 &tkip_cmd); 1179 if (ret) 1180 goto out; 1181 } 1182 1183 if (priv->have_rekey_data) { 1184 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); 1185 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN); 1186 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); 1187 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN); 1188 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); 1189 kek_kck_cmd.replay_ctr = priv->replay_ctr; 1190 1191 ret = iwl_dvm_send_cmd_pdu(priv, 1192 REPLY_WOWLAN_KEK_KCK_MATERIAL, 1193 0, sizeof(kek_kck_cmd), 1194 &kek_kck_cmd); 1195 if (ret) 1196 goto out; 1197 } 1198 } 1199 1200 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, 0, 1201 sizeof(d3_cfg_cmd), &d3_cfg_cmd); 1202 if (ret) 1203 goto out; 1204 1205 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER, 1206 0, sizeof(wakeup_filter_cmd), 1207 &wakeup_filter_cmd); 1208 if (ret) 1209 goto out; 1210 1211 ret = iwlagn_send_patterns(priv, wowlan); 1212 out: 1213 kfree(key_data.rsc_tsc); 1214 return ret; 1215} 1216#endif 1217 1218int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) 1219{ 1220 if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) { 1221 IWL_WARN(priv, "Not sending command - %s KILL\n", 1222 iwl_is_rfkill(priv) ? "RF" : "CT"); 1223 return -EIO; 1224 } 1225 1226 if (test_bit(STATUS_FW_ERROR, &priv->status)) { 1227 IWL_ERR(priv, "Command %s failed: FW Error\n", 1228 iwl_get_cmd_string(priv->trans, cmd->id)); 1229 return -EIO; 1230 } 1231 1232 /* 1233 * This can happen upon FW ASSERT: we clear the STATUS_FW_ERROR flag 1234 * in iwl_down but cancel the workers only later. 1235 */ 1236 if (!priv->ucode_loaded) { 1237 IWL_ERR(priv, "Fw not loaded - dropping CMD: %x\n", cmd->id); 1238 return -EIO; 1239 } 1240 1241 /* 1242 * Synchronous commands from this op-mode must hold 1243 * the mutex, this ensures we don't try to send two 1244 * (or more) synchronous commands at a time. 1245 */ 1246 if (!(cmd->flags & CMD_ASYNC)) 1247 lockdep_assert_held(&priv->mutex); 1248 1249 return iwl_trans_send_cmd(priv->trans, cmd); 1250} 1251 1252int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id, 1253 u32 flags, u16 len, const void *data) 1254{ 1255 struct iwl_host_cmd cmd = { 1256 .id = id, 1257 .len = { len, }, 1258 .data = { data, }, 1259 .flags = flags, 1260 }; 1261 1262 return iwl_dvm_send_cmd(priv, &cmd); 1263} 1264