| /****************************************************************************** |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.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 ieee80211_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 == IEEE80211_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_queue_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), |
| }; |
| |
| |
| /* Loose Coex */ |
| static const __le32 iwlagn_loose_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(0x00000000), |
| cpu_to_le32(0x00000000), |
| 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; |
| } |
| |
| int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv, |
| struct iwl_rx_cmd_buffer *rxb, |
| struct iwl_device_cmd *cmd) |
| { |
| 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 0; |
| } |
| |
| 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; |
| return 0; |
| } |
| |
| 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 == IEEE80211_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) { |
| 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; |
| |
| ieee80211_get_key_tx_seq(key, &seq); |
| tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); |
| tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); |
| |
| 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) { |
| u8 *pn = seq.ccmp.pn; |
| |
| aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; |
| aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; |
| |
| ieee80211_get_key_tx_seq(key, &seq); |
| aes_tx_sc->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)); |
| } 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); |
| |
| 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.sw_crypto) { |
| /* 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_dvm_get_cmd_string(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); |
| } |