| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Wey-Yi Guy | 3819 | 71.61% | 33 | 35.11% |
| Johannes Berg | 880 | 16.50% | 29 | 30.85% |
| Meenakshi Venkataraman | 294 | 5.51% | 1 | 1.06% |
| Emmanuel Grumbach | 171 | 3.21% | 13 | 13.83% |
| Don Fry | 48 | 0.90% | 6 | 6.38% |
| Stanislaw Gruszka | 40 | 0.75% | 2 | 2.13% |
| Ilan Peer | 29 | 0.54% | 1 | 1.06% |
| Eliad Peller | 26 | 0.49% | 1 | 1.06% |
| David Spinadel | 6 | 0.11% | 1 | 1.06% |
| Sharon Dvir | 5 | 0.09% | 1 | 1.06% |
| Eytan Lifshitz | 5 | 0.09% | 1 | 1.06% |
| Joe Perches | 4 | 0.08% | 2 | 2.13% |
| Dan Carpenter | 4 | 0.08% | 1 | 1.06% |
| Luciano Coelho | 1 | 0.02% | 1 | 1.06% |
| Sara Sharon | 1 | 0.02% | 1 | 1.06% |
| Total | 5333 | 94 |
/****************************************************************************** * * GPL LICENSE SUMMARY * * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * The full GNU General Public License is included in this distribution * in the file called COPYING. * * Contact Information: * Intel Linux Wireless <linuxwifi@intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #include <linux/etherdevice.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/sched.h> #include <net/mac80211.h> #include "iwl-io.h" #include "iwl-agn-hw.h" #include "iwl-trans.h" #include "iwl-modparams.h" #include "dev.h" #include "agn.h" int iwlagn_hw_valid_rtc_data_addr(u32 addr) { return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) && (addr < IWLAGN_RTC_DATA_UPPER_BOUND); } int iwlagn_send_tx_power(struct iwl_priv *priv) { struct iwlagn_tx_power_dbm_cmd tx_power_cmd; u8 tx_ant_cfg_cmd; if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status), "TX Power requested while scanning!\n")) return -EAGAIN; /* half dBm need to multiply */ tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt); if (tx_power_cmd.global_lmt > priv->nvm_data->max_tx_pwr_half_dbm) { /* * For the newer devices which using enhanced/extend tx power * table in EEPROM, the format is in half dBm. driver need to * convert to dBm format before report to mac80211. * By doing so, there is a possibility of 1/2 dBm resolution * lost. driver will perform "round-up" operation before * reporting, but it will cause 1/2 dBm tx power over the * regulatory limit. Perform the checking here, if the * "tx_power_user_lmt" is higher than EEPROM value (in * half-dBm format), lower the tx power based on EEPROM */ tx_power_cmd.global_lmt = priv->nvm_data->max_tx_pwr_half_dbm; } tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED; tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO; if (IWL_UCODE_API(priv->fw->ucode_ver) == 1) tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1; else tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD; return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, 0, sizeof(tx_power_cmd), &tx_power_cmd); } void iwlagn_temperature(struct iwl_priv *priv) { lockdep_assert_held(&priv->statistics.lock); /* store temperature from correct statistics (in Celsius) */ priv->temperature = le32_to_cpu(priv->statistics.common.temperature); iwl_tt_handler(priv); } int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum nl80211_band band) { int idx = 0; int band_offset = 0; /* HT rate format: mac80211 wants an MCS number, which is just LSB */ if (rate_n_flags & RATE_MCS_HT_MSK) { idx = (rate_n_flags & 0xff); return idx; /* Legacy rate format, search for match in table */ } else { if (band == NL80211_BAND_5GHZ) band_offset = IWL_FIRST_OFDM_RATE; for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) return idx - band_offset; } return -1; } int iwlagn_manage_ibss_station(struct iwl_priv *priv, struct ieee80211_vif *vif, bool add) { struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; if (add) return iwlagn_add_bssid_station(priv, vif_priv->ctx, vif->bss_conf.bssid, &vif_priv->ibss_bssid_sta_id); return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id, vif->bss_conf.bssid); } /** * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode * * pre-requirements: * 1. acquire mutex before calling * 2. make sure rf is on and not in exit state */ int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk) { struct iwl_txfifo_flush_cmd_v3 flush_cmd_v3 = { .flush_control = cpu_to_le16(IWL_DROP_ALL), }; struct iwl_txfifo_flush_cmd_v2 flush_cmd_v2 = { .flush_control = cpu_to_le16(IWL_DROP_ALL), }; u32 queue_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK | IWL_SCD_BE_MSK | IWL_SCD_BK_MSK | IWL_SCD_MGMT_MSK; if ((priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))) queue_control |= IWL_PAN_SCD_VO_MSK | IWL_PAN_SCD_VI_MSK | IWL_PAN_SCD_BE_MSK | IWL_PAN_SCD_BK_MSK | IWL_PAN_SCD_MGMT_MSK | IWL_PAN_SCD_MULTICAST_MSK; if (priv->nvm_data->sku_cap_11n_enable) queue_control |= IWL_AGG_TX_QUEUE_MSK; if (scd_q_msk) queue_control = scd_q_msk; IWL_DEBUG_INFO(priv, "queue control: 0x%x\n", queue_control); flush_cmd_v3.queue_control = cpu_to_le32(queue_control); flush_cmd_v2.queue_control = cpu_to_le16((u16)queue_control); if (IWL_UCODE_API(priv->fw->ucode_ver) > 2) return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0, sizeof(flush_cmd_v3), &flush_cmd_v3); return iwl_dvm_send_cmd_pdu(priv, REPLY_TXFIFO_FLUSH, 0, sizeof(flush_cmd_v2), &flush_cmd_v2); } void iwlagn_dev_txfifo_flush(struct iwl_priv *priv) { mutex_lock(&priv->mutex); ieee80211_stop_queues(priv->hw); if (iwlagn_txfifo_flush(priv, 0)) { IWL_ERR(priv, "flush request fail\n"); goto done; } IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n"); iwl_trans_wait_tx_queues_empty(priv->trans, 0xffffffff); done: ieee80211_wake_queues(priv->hw); mutex_unlock(&priv->mutex); } /* * BT coex */ /* Notmal TDM */ static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = { cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaeaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xcc00ff28), cpu_to_le32(0x0000aaaa), cpu_to_le32(0xcc00aaaa), cpu_to_le32(0x0000aaaa), cpu_to_le32(0xc0004000), cpu_to_le32(0x00004000), cpu_to_le32(0xf0005000), cpu_to_le32(0xf0005000), }; /* Full concurrency */ static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = { cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0xaaaaaaaa), cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), }; void iwlagn_send_advance_bt_config(struct iwl_priv *priv) { struct iwl_basic_bt_cmd basic = { .max_kill = IWLAGN_BT_MAX_KILL_DEFAULT, .bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT, .bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT, .bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT, }; struct iwl_bt_cmd_v1 bt_cmd_v1; struct iwl_bt_cmd_v2 bt_cmd_v2; int ret; BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) != sizeof(basic.bt3_lookup_table)); if (priv->lib->bt_params) { /* * newer generation of devices (2000 series and newer) * use the version 2 of the bt command * we need to make sure sending the host command * with correct data structure to avoid uCode assert */ if (priv->lib->bt_params->bt_session_2) { bt_cmd_v2.prio_boost = cpu_to_le32( priv->lib->bt_params->bt_prio_boost); bt_cmd_v2.tx_prio_boost = 0; bt_cmd_v2.rx_prio_boost = 0; } else { /* older version only has 8 bits */ WARN_ON(priv->lib->bt_params->bt_prio_boost & ~0xFF); bt_cmd_v1.prio_boost = priv->lib->bt_params->bt_prio_boost; bt_cmd_v1.tx_prio_boost = 0; bt_cmd_v1.rx_prio_boost = 0; } } else { IWL_ERR(priv, "failed to construct BT Coex Config\n"); return; } /* * Possible situations when BT needs to take over for receive, * at the same time where STA needs to response to AP's frame(s), * reduce the tx power of the required response frames, by that, * allow the concurrent BT receive & WiFi transmit * (BT - ANT A, WiFi -ANT B), without interference to one another * * Reduced tx power apply to control frames only (ACK/Back/CTS) * when indicated by the BT config command */ basic.kill_ack_mask = priv->kill_ack_mask; basic.kill_cts_mask = priv->kill_cts_mask; if (priv->reduced_txpower) basic.reduce_txpower = IWLAGN_BT_REDUCED_TX_PWR; basic.valid = priv->bt_valid; /* * Configure BT coex mode to "no coexistence" when the * user disabled BT coexistence, we have no interface * (might be in monitor mode), or the interface is in * IBSS mode (no proper uCode support for coex then). */ if (!iwlwifi_mod_params.bt_coex_active || priv->iw_mode == NL80211_IFTYPE_ADHOC) { basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED; } else { basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W << IWLAGN_BT_FLAG_COEX_MODE_SHIFT; if (!priv->bt_enable_pspoll) basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE; else basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE; if (priv->bt_ch_announce) basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION; IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags); } priv->bt_enable_flag = basic.flags; if (priv->bt_full_concurrent) memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup, sizeof(iwlagn_concurrent_lookup)); else memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup, sizeof(iwlagn_def_3w_lookup)); IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n", basic.flags ? "active" : "disabled", priv->bt_full_concurrent ? "full concurrency" : "3-wire"); if (priv->lib->bt_params->bt_session_2) { memcpy(&bt_cmd_v2.basic, &basic, sizeof(basic)); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, 0, sizeof(bt_cmd_v2), &bt_cmd_v2); } else { memcpy(&bt_cmd_v1.basic, &basic, sizeof(basic)); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, 0, sizeof(bt_cmd_v1), &bt_cmd_v1); } if (ret) IWL_ERR(priv, "failed to send BT Coex Config\n"); } void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena) { struct iwl_rxon_context *ctx, *found_ctx = NULL; bool found_ap = false; lockdep_assert_held(&priv->mutex); /* Check whether AP or GO mode is active. */ if (rssi_ena) { for_each_context(priv, ctx) { if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP && iwl_is_associated_ctx(ctx)) { found_ap = true; break; } } } /* * If disable was received or If GO/AP mode, disable RSSI * measurements. */ if (!rssi_ena || found_ap) { if (priv->cur_rssi_ctx) { ctx = priv->cur_rssi_ctx; ieee80211_disable_rssi_reports(ctx->vif); priv->cur_rssi_ctx = NULL; } return; } /* * If rssi measurements need to be enabled, consider all cases now. * Figure out how many contexts are active. */ for_each_context(priv, ctx) { if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION && iwl_is_associated_ctx(ctx)) { found_ctx = ctx; break; } } /* * rssi monitor already enabled for the correct interface...nothing * to do. */ if (found_ctx == priv->cur_rssi_ctx) return; /* * Figure out if rssi monitor is currently enabled, and needs * to be changed. If rssi monitor is already enabled, disable * it first else just enable rssi measurements on the * interface found above. */ if (priv->cur_rssi_ctx) { ctx = priv->cur_rssi_ctx; if (ctx->vif) ieee80211_disable_rssi_reports(ctx->vif); } priv->cur_rssi_ctx = found_ctx; if (!found_ctx) return; ieee80211_enable_rssi_reports(found_ctx->vif, IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD, IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD); } static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg) { return (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3SCOESCO_POS; } static void iwlagn_bt_traffic_change_work(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, bt_traffic_change_work); struct iwl_rxon_context *ctx; int smps_request = -1; if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) { /* bt coex disabled */ return; } /* * Note: bt_traffic_load can be overridden by scan complete and * coex profile notifications. Ignore that since only bad consequence * can be not matching debug print with actual state. */ IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n", priv->bt_traffic_load); switch (priv->bt_traffic_load) { case IWL_BT_COEX_TRAFFIC_LOAD_NONE: if (priv->bt_status) smps_request = IEEE80211_SMPS_DYNAMIC; else smps_request = IEEE80211_SMPS_AUTOMATIC; break; case IWL_BT_COEX_TRAFFIC_LOAD_LOW: smps_request = IEEE80211_SMPS_DYNAMIC; break; case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: smps_request = IEEE80211_SMPS_STATIC; break; default: IWL_ERR(priv, "Invalid BT traffic load: %d\n", priv->bt_traffic_load); break; } mutex_lock(&priv->mutex); /* * We can not send command to firmware while scanning. When the scan * complete we will schedule this work again. We do check with mutex * locked to prevent new scan request to arrive. We do not check * STATUS_SCANNING to avoid race when queue_work two times from * different notifications, but quit and not perform any work at all. */ if (test_bit(STATUS_SCAN_HW, &priv->status)) goto out; iwl_update_chain_flags(priv); if (smps_request != -1) { priv->current_ht_config.smps = smps_request; for_each_context(priv, ctx) { if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION) ieee80211_request_smps(ctx->vif, smps_request); } } /* * Dynamic PS poll related functionality. Adjust RSSI measurements if * necessary. */ iwlagn_bt_coex_rssi_monitor(priv); out: mutex_unlock(&priv->mutex); } /* * If BT sco traffic, and RSSI monitor is enabled, move measurements to the * correct interface or disable it if this is the last interface to be * removed. */ void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv) { if (priv->bt_is_sco && priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS) iwlagn_bt_adjust_rssi_monitor(priv, true); else iwlagn_bt_adjust_rssi_monitor(priv, false); } static void iwlagn_print_uartmsg(struct iwl_priv *priv, struct iwl_bt_uart_msg *uart_msg) { IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, " "Update Req = 0x%X\n", (BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >> BT_UART_MSG_FRAME1MSGTYPE_POS, (BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >> BT_UART_MSG_FRAME1SSN_POS, (BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >> BT_UART_MSG_FRAME1UPDATEREQ_POS); IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, " "Chl_SeqN = 0x%X, In band = 0x%X\n", (BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >> BT_UART_MSG_FRAME2OPENCONNECTIONS_POS, (BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >> BT_UART_MSG_FRAME2TRAFFICLOAD_POS, (BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >> BT_UART_MSG_FRAME2CHLSEQN_POS, (BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >> BT_UART_MSG_FRAME2INBAND_POS); IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, " "ACL = 0x%X, Master = 0x%X, OBEX = 0x%X\n", (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3SCOESCO_POS, (BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3SNIFF_POS, (BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3A2DP_POS, (BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3ACL_POS, (BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3MASTER_POS, (BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >> BT_UART_MSG_FRAME3OBEX_POS); IWL_DEBUG_COEX(priv, "Idle duration = 0x%X\n", (BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >> BT_UART_MSG_FRAME4IDLEDURATION_POS); IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, " "eSCO Retransmissions = 0x%X\n", (BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >> BT_UART_MSG_FRAME5TXACTIVITY_POS, (BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >> BT_UART_MSG_FRAME5RXACTIVITY_POS, (BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >> BT_UART_MSG_FRAME5ESCORETRANSMIT_POS); IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X\n", (BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >> BT_UART_MSG_FRAME6SNIFFINTERVAL_POS, (BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >> BT_UART_MSG_FRAME6DISCOVERABLE_POS); IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = " "0x%X, Inquiry = 0x%X, Connectable = 0x%X\n", (BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >> BT_UART_MSG_FRAME7SNIFFACTIVITY_POS, (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >> BT_UART_MSG_FRAME7PAGE_POS, (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >> BT_UART_MSG_FRAME7INQUIRY_POS, (BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >> BT_UART_MSG_FRAME7CONNECTABLE_POS); } static bool iwlagn_set_kill_msk(struct iwl_priv *priv, struct iwl_bt_uart_msg *uart_msg) { bool need_update = false; u8 kill_msk = IWL_BT_KILL_REDUCE; static const __le32 bt_kill_ack_msg[3] = { IWLAGN_BT_KILL_ACK_MASK_DEFAULT, IWLAGN_BT_KILL_ACK_CTS_MASK_SCO, IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE}; static const __le32 bt_kill_cts_msg[3] = { IWLAGN_BT_KILL_CTS_MASK_DEFAULT, IWLAGN_BT_KILL_ACK_CTS_MASK_SCO, IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE}; if (!priv->reduced_txpower) kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) ? IWL_BT_KILL_OVERRIDE : IWL_BT_KILL_DEFAULT; if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] || priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) { priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK; priv->kill_ack_mask = bt_kill_ack_msg[kill_msk]; priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK; priv->kill_cts_mask = bt_kill_cts_msg[kill_msk]; need_update = true; } return need_update; } /* * Upon RSSI changes, sends a bt config command with following changes * 1. enable/disable "reduced control frames tx power * 2. update the "kill)ack_mask" and "kill_cts_mask" * * If "reduced tx power" is enabled, uCode shall * 1. ACK/Back/CTS rate shall reduced to 6Mbps * 2. not use duplciate 20/40MHz mode */ static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv, struct iwl_bt_uart_msg *uart_msg) { bool need_update = false; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; int ave_rssi; if (!ctx->vif || (ctx->vif->type != NL80211_IFTYPE_STATION)) { IWL_DEBUG_INFO(priv, "BSS ctx not active or not in sta mode\n"); return false; } ave_rssi = ieee80211_ave_rssi(ctx->vif); if (!ave_rssi) { /* no rssi data, no changes to reduce tx power */ IWL_DEBUG_COEX(priv, "no rssi data available\n"); return need_update; } if (!priv->reduced_txpower && !iwl_is_associated(priv, IWL_RXON_CTX_PAN) && (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) && (uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK | BT_UART_MSG_FRAME3OBEX_MSK)) && !(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK | BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) { /* enabling reduced tx power */ priv->reduced_txpower = true; priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR; need_update = true; } else if (priv->reduced_txpower && (iwl_is_associated(priv, IWL_RXON_CTX_PAN) || (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) || (uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK | BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) || !(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK | BT_UART_MSG_FRAME3OBEX_MSK)))) { /* disable reduced tx power */ priv->reduced_txpower = false; priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR; need_update = true; } return need_update; } static void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_bt_coex_profile_notif *coex = (void *)pkt->data; struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg; if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) { /* bt coex disabled */ return; } IWL_DEBUG_COEX(priv, "BT Coex notification:\n"); IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status); IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load); IWL_DEBUG_COEX(priv, " CI compliance: %d\n", coex->bt_ci_compliance); iwlagn_print_uartmsg(priv, uart_msg); priv->last_bt_traffic_load = priv->bt_traffic_load; priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg); if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { if (priv->bt_status != coex->bt_status || priv->last_bt_traffic_load != coex->bt_traffic_load) { if (coex->bt_status) { /* BT on */ if (!priv->bt_ch_announce) priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; else priv->bt_traffic_load = coex->bt_traffic_load; } else { /* BT off */ priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE; } priv->bt_status = coex->bt_status; queue_work(priv->workqueue, &priv->bt_traffic_change_work); } } /* schedule to send runtime bt_config */ /* check reduce power before change ack/cts kill mask */ if (iwlagn_fill_txpower_mode(priv, uart_msg) || iwlagn_set_kill_msk(priv, uart_msg)) queue_work(priv->workqueue, &priv->bt_runtime_config); /* FIXME: based on notification, adjust the prio_boost */ priv->bt_ci_compliance = coex->bt_ci_compliance; } void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv) { priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] = iwlagn_bt_coex_profile_notif; } void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv) { INIT_WORK(&priv->bt_traffic_change_work, iwlagn_bt_traffic_change_work); } void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv) { cancel_work_sync(&priv->bt_traffic_change_work); } static bool is_single_rx_stream(struct iwl_priv *priv) { return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC || priv->current_ht_config.single_chain_sufficient; } #define IWL_NUM_RX_CHAINS_MULTIPLE 3 #define IWL_NUM_RX_CHAINS_SINGLE 2 #define IWL_NUM_IDLE_CHAINS_DUAL 2 #define IWL_NUM_IDLE_CHAINS_SINGLE 1 /* * Determine how many receiver/antenna chains to use. * * More provides better reception via diversity. Fewer saves power * at the expense of throughput, but only when not in powersave to * start with. * * MIMO (dual stream) requires at least 2, but works better with 3. * This does not determine *which* chains to use, just how many. */ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) { if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && (priv->bt_full_concurrent || priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { /* * only use chain 'A' in bt high traffic load or * full concurrency mode */ return IWL_NUM_RX_CHAINS_SINGLE; } /* # of Rx chains to use when expecting MIMO. */ if (is_single_rx_stream(priv)) return IWL_NUM_RX_CHAINS_SINGLE; else return IWL_NUM_RX_CHAINS_MULTIPLE; } /* * When we are in power saving mode, unless device support spatial * multiplexing power save, use the active count for rx chain count. */ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) { /* # Rx chains when idling, depending on SMPS mode */ switch (priv->current_ht_config.smps) { case IEEE80211_SMPS_STATIC: case IEEE80211_SMPS_DYNAMIC: return IWL_NUM_IDLE_CHAINS_SINGLE; case IEEE80211_SMPS_AUTOMATIC: case IEEE80211_SMPS_OFF: return active_cnt; default: WARN(1, "invalid SMPS mode %d", priv->current_ht_config.smps); return active_cnt; } } /* up to 4 chains */ static u8 iwl_count_chain_bitmap(u32 chain_bitmap) { u8 res; res = (chain_bitmap & BIT(0)) >> 0; res += (chain_bitmap & BIT(1)) >> 1; res += (chain_bitmap & BIT(2)) >> 2; res += (chain_bitmap & BIT(3)) >> 3; return res; } /** * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image * * Selects how many and which Rx receivers/antennas/chains to use. * This should not be used for scan command ... it puts data in wrong place. */ void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { bool is_single = is_single_rx_stream(priv); bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; u32 active_chains; u16 rx_chain; /* Tell uCode which antennas are actually connected. * Before first association, we assume all antennas are connected. * Just after first association, iwl_chain_noise_calibration() * checks which antennas actually *are* connected. */ if (priv->chain_noise_data.active_chains) active_chains = priv->chain_noise_data.active_chains; else active_chains = priv->nvm_data->valid_rx_ant; if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && (priv->bt_full_concurrent || priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { /* * only use chain 'A' in bt high traffic load or * full concurrency mode */ active_chains = first_antenna(active_chains); } rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; /* How many receivers should we use? */ active_rx_cnt = iwl_get_active_rx_chain_count(priv); idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); /* correct rx chain count according hw settings * and chain noise calibration */ valid_rx_cnt = iwl_count_chain_bitmap(active_chains); if (valid_rx_cnt < active_rx_cnt) active_rx_cnt = valid_rx_cnt; if (valid_rx_cnt < idle_rx_cnt) idle_rx_cnt = valid_rx_cnt; rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; ctx->staging.rx_chain = cpu_to_le16(rx_chain); if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; else ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", ctx->staging.rx_chain, active_rx_cnt, idle_rx_cnt); WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || active_rx_cnt < idle_rx_cnt); } u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid) { int i; u8 ind = ant; if (priv->band == NL80211_BAND_2GHZ && priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH) return 0; for (i = 0; i < RATE_ANT_NUM - 1; i++) { ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; if (valid & BIT(ind)) return ind; } return ant; } #ifdef CONFIG_PM_SLEEP static void iwlagn_convert_p1k(u16 *p1k, __le16 *out) { int i; for (i = 0; i < IWLAGN_P1K_SIZE; i++) out[i] = cpu_to_le16(p1k[i]); } struct wowlan_key_data { struct iwl_rxon_context *ctx; struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc; struct iwlagn_wowlan_tkip_params_cmd *tkip; const u8 *bssid; bool error, use_rsc_tsc, use_tkip; }; static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *key, void *_data) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct wowlan_key_data *data = _data; struct iwl_rxon_context *ctx = data->ctx; struct aes_sc *aes_sc, *aes_tx_sc = NULL; struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; struct iwlagn_p1k_cache *rx_p1ks; u8 *rx_mic_key; struct ieee80211_key_seq seq; u32 cur_rx_iv32 = 0; u16 p1k[IWLAGN_P1K_SIZE]; int ret, i; mutex_lock(&priv->mutex); if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta && !ctx->key_mapping_keys) ret = iwl_set_default_wep_key(priv, ctx, key); else ret = iwl_set_dynamic_key(priv, ctx, key, sta); if (ret) { IWL_ERR(priv, "Error setting key during suspend!\n"); data->error = true; } switch (key->cipher) { case WLAN_CIPHER_SUITE_TKIP: if (sta) { u64 pn64; tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; rx_p1ks = data->tkip->rx_uni; pn64 = atomic64_read(&key->tx_pn); tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); iwlagn_convert_p1k(p1k, data->tkip->tx.p1k); memcpy(data->tkip->mic_keys.tx, &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], IWLAGN_MIC_KEY_SIZE); rx_mic_key = data->tkip->mic_keys.rx_unicast; } else { tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; rx_p1ks = data->tkip->rx_multi; rx_mic_key = data->tkip->mic_keys.rx_mcast; } /* * For non-QoS this relies on the fact that both the uCode and * mac80211 use TID 0 (as they need to to avoid replay attacks) * for checking the IV in the frames. */ for (i = 0; i < IWLAGN_NUM_RSC; i++) { ieee80211_get_key_rx_seq(key, i, &seq); tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); /* wrapping isn't allowed, AP must rekey */ if (seq.tkip.iv32 > cur_rx_iv32) cur_rx_iv32 = seq.tkip.iv32; } ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k); iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k); ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32 + 1, p1k); iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k); memcpy(rx_mic_key, &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], IWLAGN_MIC_KEY_SIZE); data->use_tkip = true; data->use_rsc_tsc = true; break; case WLAN_CIPHER_SUITE_CCMP: if (sta) { u64 pn64; aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; pn64 = atomic64_read(&key->tx_pn); aes_tx_sc->pn = cpu_to_le64(pn64); } else aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; /* * For non-QoS this relies on the fact that both the uCode and * mac80211 use TID 0 for checking the IV in the frames. */ for (i = 0; i < IWLAGN_NUM_RSC; i++) { u8 *pn = seq.ccmp.pn; ieee80211_get_key_rx_seq(key, i, &seq); aes_sc[i].pn = cpu_to_le64( (u64)pn[5] | ((u64)pn[4] << 8) | ((u64)pn[3] << 16) | ((u64)pn[2] << 24) | ((u64)pn[1] << 32) | ((u64)pn[0] << 40)); } data->use_rsc_tsc = true; break; } mutex_unlock(&priv->mutex); } int iwlagn_send_patterns(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan) { struct iwlagn_wowlan_patterns_cmd *pattern_cmd; struct iwl_host_cmd cmd = { .id = REPLY_WOWLAN_PATTERNS, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, }; int i, err; if (!wowlan->n_patterns) return 0; cmd.len[0] = sizeof(*pattern_cmd) + wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern); pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); if (!pattern_cmd) return -ENOMEM; pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); for (i = 0; i < wowlan->n_patterns; i++) { int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); memcpy(&pattern_cmd->patterns[i].mask, wowlan->patterns[i].mask, mask_len); memcpy(&pattern_cmd->patterns[i].pattern, wowlan->patterns[i].pattern, wowlan->patterns[i].pattern_len); pattern_cmd->patterns[i].mask_size = mask_len; pattern_cmd->patterns[i].pattern_size = wowlan->patterns[i].pattern_len; } cmd.data[0] = pattern_cmd; err = iwl_dvm_send_cmd(priv, &cmd); kfree(pattern_cmd); return err; } int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan) { struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd; struct iwl_rxon_cmd rxon; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd; struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {}; struct iwlagn_d3_config_cmd d3_cfg_cmd = { /* * Program the minimum sleep time to 10 seconds, as many * platforms have issues processing a wakeup signal while * still being in the process of suspending. */ .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), }; struct wowlan_key_data key_data = { .ctx = ctx, .bssid = ctx->active.bssid_addr, .use_rsc_tsc = false, .tkip = &tkip_cmd, .use_tkip = false, }; int ret, i; u16 seq; key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); if (!key_data.rsc_tsc) return -ENOMEM; memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd)); /* * We know the last used seqno, and the uCode expects to know that * one, it will increment before TX. */ seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ; wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq); /* * For QoS counters, we store the one to use next, so subtract 0x10 * since the uCode will add 0x10 before using the value. */ for (i = 0; i < IWL_MAX_TID_COUNT; i++) { seq = priv->tid_data[IWL_AP_ID][i].seq_number; seq -= 0x10; wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq); } if (wowlan->disconnect) wakeup_filter_cmd.enabled |= cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE); if (wowlan->magic_pkt) wakeup_filter_cmd.enabled |= cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET); if (wowlan->gtk_rekey_failure) wakeup_filter_cmd.enabled |= cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL); if (wowlan->eap_identity_req) wakeup_filter_cmd.enabled |= cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ); if (wowlan->four_way_handshake) wakeup_filter_cmd.enabled |= cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE); if (wowlan->n_patterns) wakeup_filter_cmd.enabled |= cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH); if (wowlan->rfkill_release) d3_cfg_cmd.wakeup_flags |= cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL); iwl_scan_cancel_timeout(priv, 200); memcpy(&rxon, &ctx->active, sizeof(rxon)); priv->ucode_loaded = false; iwl_trans_stop_device(priv->trans); ret = iwl_trans_start_hw(priv->trans); if (ret) goto out; priv->wowlan = true; ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); if (ret) goto out; /* now configure WoWLAN ucode */ ret = iwl_alive_start(priv); if (ret) goto out; memcpy(&ctx->staging, &rxon, sizeof(rxon)); ret = iwlagn_commit_rxon(priv, ctx); if (ret) goto out; ret = iwl_power_update_mode(priv, true); if (ret) goto out; if (!iwlwifi_mod_params.swcrypto) { /* mark all keys clear */ priv->ucode_key_table = 0; ctx->key_mapping_keys = 0; /* * This needs to be unlocked due to lock ordering * constraints. Since we're in the suspend path * that isn't really a problem though. */ mutex_unlock(&priv->mutex); ieee80211_iter_keys(priv->hw, ctx->vif, iwlagn_wowlan_program_keys, &key_data); mutex_lock(&priv->mutex); if (key_data.error) { ret = -EIO; goto out; } if (key_data.use_rsc_tsc) { struct iwl_host_cmd rsc_tsc_cmd = { .id = REPLY_WOWLAN_TSC_RSC_PARAMS, .data[0] = key_data.rsc_tsc, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, .len[0] = sizeof(*key_data.rsc_tsc), }; ret = iwl_dvm_send_cmd(priv, &rsc_tsc_cmd); if (ret) goto out; } if (key_data.use_tkip) { ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_TKIP_PARAMS, 0, sizeof(tkip_cmd), &tkip_cmd); if (ret) goto out; } if (priv->have_rekey_data) { memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN); kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN); kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); kek_kck_cmd.replay_ctr = priv->replay_ctr; ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_KEK_KCK_MATERIAL, 0, sizeof(kek_kck_cmd), &kek_kck_cmd); if (ret) goto out; } } ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, 0, sizeof(d3_cfg_cmd), &d3_cfg_cmd); if (ret) goto out; ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER, 0, sizeof(wakeup_filter_cmd), &wakeup_filter_cmd); if (ret) goto out; ret = iwlagn_send_patterns(priv, wowlan); out: kfree(key_data.rsc_tsc); return ret; } #endif int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) { if (iwl_is_rfkill(priv) || iwl_is_ctkill(priv)) { IWL_WARN(priv, "Not sending command - %s KILL\n", iwl_is_rfkill(priv) ? "RF" : "CT"); return -EIO; } if (test_bit(STATUS_FW_ERROR, &priv->status)) { IWL_ERR(priv, "Command %s failed: FW Error\n", iwl_get_cmd_string(priv->trans, cmd->id)); return -EIO; } /* * This can happen upon FW ASSERT: we clear the STATUS_FW_ERROR flag * in iwl_down but cancel the workers only later. */ if (!priv->ucode_loaded) { IWL_ERR(priv, "Fw not loaded - dropping CMD: %x\n", cmd->id); return -EIO; } /* * Synchronous commands from this op-mode must hold * the mutex, this ensures we don't try to send two * (or more) synchronous commands at a time. */ if (!(cmd->flags & CMD_ASYNC)) lockdep_assert_held(&priv->mutex); return iwl_trans_send_cmd(priv->trans, cmd); } int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len, const void *data) { struct iwl_host_cmd cmd = { .id = id, .len = { len, }, .data = { data, }, .flags = flags, }; return iwl_dvm_send_cmd(priv, &cmd); }
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