| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2013 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 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include <net/mac80211.h> |
| |
| #include "iwl-trans.h" |
| #include "iwl-op-mode.h" |
| #include "iwl-fw.h" |
| #include "iwl-debug.h" |
| #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */ |
| #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */ |
| #include "iwl-eeprom-parse.h" |
| |
| #include "mvm.h" |
| #include "iwl-phy-db.h" |
| |
| #define MVM_UCODE_ALIVE_TIMEOUT HZ |
| #define MVM_UCODE_CALIB_TIMEOUT (2*HZ) |
| |
| #define UCODE_VALID_OK cpu_to_le32(0x1) |
| |
| /* Default calibration values for WkP - set to INIT image w/o running */ |
| static const u8 wkp_calib_values_rx_iq_skew[] = { 0x00, 0x00, 0x01, 0x00 }; |
| static const u8 wkp_calib_values_tx_iq_skew[] = { 0x01, 0x00, 0x00, 0x00 }; |
| |
| struct iwl_calib_default_data { |
| u16 size; |
| void *data; |
| }; |
| |
| #define CALIB_SIZE_N_DATA(_buf) {.size = sizeof(_buf), .data = &_buf} |
| |
| static const struct iwl_calib_default_data wkp_calib_default_data[12] = { |
| [9] = CALIB_SIZE_N_DATA(wkp_calib_values_tx_iq_skew), |
| [11] = CALIB_SIZE_N_DATA(wkp_calib_values_rx_iq_skew), |
| }; |
| |
| struct iwl_mvm_alive_data { |
| bool valid; |
| u32 scd_base_addr; |
| }; |
| |
| static inline const struct fw_img * |
| iwl_get_ucode_image(struct iwl_mvm *mvm, enum iwl_ucode_type ucode_type) |
| { |
| if (ucode_type >= IWL_UCODE_TYPE_MAX) |
| return NULL; |
| |
| return &mvm->fw->img[ucode_type]; |
| } |
| |
| static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant) |
| { |
| struct iwl_tx_ant_cfg_cmd tx_ant_cmd = { |
| .valid = cpu_to_le32(valid_tx_ant), |
| }; |
| |
| IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant); |
| return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, CMD_SYNC, |
| sizeof(tx_ant_cmd), &tx_ant_cmd); |
| } |
| |
| static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait, |
| struct iwl_rx_packet *pkt, void *data) |
| { |
| struct iwl_mvm *mvm = |
| container_of(notif_wait, struct iwl_mvm, notif_wait); |
| struct iwl_mvm_alive_data *alive_data = data; |
| struct mvm_alive_resp *palive; |
| |
| palive = (void *)pkt->data; |
| |
| mvm->error_event_table = le32_to_cpu(palive->error_event_table_ptr); |
| mvm->log_event_table = le32_to_cpu(palive->log_event_table_ptr); |
| alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr); |
| |
| alive_data->valid = le16_to_cpu(palive->status) == IWL_ALIVE_STATUS_OK; |
| IWL_DEBUG_FW(mvm, |
| "Alive ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n", |
| le16_to_cpu(palive->status), palive->ver_type, |
| palive->ver_subtype, palive->flags); |
| |
| return true; |
| } |
| |
| static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait, |
| struct iwl_rx_packet *pkt, void *data) |
| { |
| struct iwl_phy_db *phy_db = data; |
| |
| if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) { |
| WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF); |
| return true; |
| } |
| |
| WARN_ON(iwl_phy_db_set_section(phy_db, pkt, GFP_ATOMIC)); |
| |
| return false; |
| } |
| |
| static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm, |
| enum iwl_ucode_type ucode_type) |
| { |
| struct iwl_notification_wait alive_wait; |
| struct iwl_mvm_alive_data alive_data; |
| const struct fw_img *fw; |
| int ret, i; |
| enum iwl_ucode_type old_type = mvm->cur_ucode; |
| static const u8 alive_cmd[] = { MVM_ALIVE }; |
| |
| mvm->cur_ucode = ucode_type; |
| fw = iwl_get_ucode_image(mvm, ucode_type); |
| |
| mvm->ucode_loaded = false; |
| |
| if (!fw) |
| return -EINVAL; |
| |
| iwl_init_notification_wait(&mvm->notif_wait, &alive_wait, |
| alive_cmd, ARRAY_SIZE(alive_cmd), |
| iwl_alive_fn, &alive_data); |
| |
| ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT); |
| if (ret) { |
| mvm->cur_ucode = old_type; |
| iwl_remove_notification(&mvm->notif_wait, &alive_wait); |
| return ret; |
| } |
| |
| /* |
| * Some things may run in the background now, but we |
| * just wait for the ALIVE notification here. |
| */ |
| ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait, |
| MVM_UCODE_ALIVE_TIMEOUT); |
| if (ret) { |
| mvm->cur_ucode = old_type; |
| return ret; |
| } |
| |
| if (!alive_data.valid) { |
| IWL_ERR(mvm, "Loaded ucode is not valid!\n"); |
| mvm->cur_ucode = old_type; |
| return -EIO; |
| } |
| |
| iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr); |
| |
| /* |
| * Note: all the queues are enabled as part of the interface |
| * initialization, but in firmware restart scenarios they |
| * could be stopped, so wake them up. In firmware restart, |
| * mac80211 will have the queues stopped as well until the |
| * reconfiguration completes. During normal startup, they |
| * will be empty. |
| */ |
| |
| for (i = 0; i < IWL_MAX_HW_QUEUES; i++) { |
| if (i < IWL_MVM_FIRST_AGG_QUEUE && i != IWL_MVM_CMD_QUEUE) |
| mvm->queue_to_mac80211[i] = i; |
| else |
| mvm->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE; |
| atomic_set(&mvm->queue_stop_count[i], 0); |
| } |
| |
| mvm->transport_queue_stop = 0; |
| |
| mvm->ucode_loaded = true; |
| |
| return 0; |
| } |
| |
| static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm) |
| { |
| struct iwl_phy_cfg_cmd phy_cfg_cmd; |
| enum iwl_ucode_type ucode_type = mvm->cur_ucode; |
| |
| /* Set parameters */ |
| phy_cfg_cmd.phy_cfg = cpu_to_le32(mvm->fw->phy_config); |
| phy_cfg_cmd.calib_control.event_trigger = |
| mvm->fw->default_calib[ucode_type].event_trigger; |
| phy_cfg_cmd.calib_control.flow_trigger = |
| mvm->fw->default_calib[ucode_type].flow_trigger; |
| |
| IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n", |
| phy_cfg_cmd.phy_cfg); |
| |
| return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, CMD_SYNC, |
| sizeof(phy_cfg_cmd), &phy_cfg_cmd); |
| } |
| |
| static int iwl_set_default_calibrations(struct iwl_mvm *mvm) |
| { |
| u8 cmd_raw[16]; /* holds the variable size commands */ |
| struct iwl_set_calib_default_cmd *cmd = |
| (struct iwl_set_calib_default_cmd *)cmd_raw; |
| int ret, i; |
| |
| /* Setting default values for calibrations we don't run */ |
| for (i = 0; i < ARRAY_SIZE(wkp_calib_default_data); i++) { |
| u16 cmd_len; |
| |
| if (wkp_calib_default_data[i].size == 0) |
| continue; |
| |
| memset(cmd_raw, 0, sizeof(cmd_raw)); |
| cmd_len = wkp_calib_default_data[i].size + sizeof(cmd); |
| cmd->calib_index = cpu_to_le16(i); |
| cmd->length = cpu_to_le16(wkp_calib_default_data[i].size); |
| if (WARN_ONCE(cmd_len > sizeof(cmd_raw), |
| "Need to enlarge cmd_raw to %d\n", cmd_len)) |
| break; |
| memcpy(cmd->data, wkp_calib_default_data[i].data, |
| wkp_calib_default_data[i].size); |
| ret = iwl_mvm_send_cmd_pdu(mvm, SET_CALIB_DEFAULT_CMD, 0, |
| sizeof(*cmd) + |
| wkp_calib_default_data[i].size, |
| cmd); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) |
| { |
| struct iwl_notification_wait calib_wait; |
| static const u8 init_complete[] = { |
| INIT_COMPLETE_NOTIF, |
| CALIB_RES_NOTIF_PHY_DB |
| }; |
| int ret; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (mvm->init_ucode_run) |
| return 0; |
| |
| iwl_init_notification_wait(&mvm->notif_wait, |
| &calib_wait, |
| init_complete, |
| ARRAY_SIZE(init_complete), |
| iwl_wait_phy_db_entry, |
| mvm->phy_db); |
| |
| /* Will also start the device */ |
| ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret); |
| goto error; |
| } |
| |
| ret = iwl_send_bt_prio_tbl(mvm); |
| if (ret) |
| goto error; |
| |
| if (read_nvm) { |
| /* Read nvm */ |
| ret = iwl_nvm_init(mvm); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to read NVM: %d\n", ret); |
| goto error; |
| } |
| } |
| |
| ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans); |
| WARN_ON(ret); |
| |
| /* Send TX valid antennas before triggering calibrations */ |
| ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw)); |
| if (ret) |
| goto error; |
| |
| /* need to set default values */ |
| ret = iwl_set_default_calibrations(mvm); |
| if (ret) |
| goto error; |
| |
| /* |
| * Send phy configurations command to init uCode |
| * to start the 16.0 uCode init image internal calibrations. |
| */ |
| ret = iwl_send_phy_cfg_cmd(mvm); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n", |
| ret); |
| goto error; |
| } |
| |
| /* |
| * Some things may run in the background now, but we |
| * just wait for the calibration complete notification. |
| */ |
| ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait, |
| MVM_UCODE_CALIB_TIMEOUT); |
| if (!ret) |
| mvm->init_ucode_run = true; |
| goto out; |
| |
| error: |
| iwl_remove_notification(&mvm->notif_wait, &calib_wait); |
| out: |
| if (!iwlmvm_mod_params.init_dbg) { |
| iwl_trans_stop_device(mvm->trans); |
| } else if (!mvm->nvm_data) { |
| /* we want to debug INIT and we have no NVM - fake */ |
| mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) + |
| sizeof(struct ieee80211_channel) + |
| sizeof(struct ieee80211_rate), |
| GFP_KERNEL); |
| if (!mvm->nvm_data) |
| return -ENOMEM; |
| mvm->nvm_data->valid_rx_ant = 1; |
| mvm->nvm_data->valid_tx_ant = 1; |
| mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels; |
| mvm->nvm_data->bands[0].n_channels = 1; |
| mvm->nvm_data->bands[0].n_bitrates = 1; |
| mvm->nvm_data->bands[0].bitrates = |
| (void *)mvm->nvm_data->channels + 1; |
| mvm->nvm_data->bands[0].bitrates->hw_value = 10; |
| } |
| |
| return ret; |
| } |
| |
| #define UCODE_CALIB_TIMEOUT (2*HZ) |
| |
| int iwl_mvm_up(struct iwl_mvm *mvm) |
| { |
| int ret, i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| ret = iwl_trans_start_hw(mvm->trans); |
| if (ret) |
| return ret; |
| |
| /* If we were in RFKILL during module loading, load init ucode now */ |
| if (!mvm->init_ucode_run) { |
| ret = iwl_run_init_mvm_ucode(mvm, false); |
| if (ret && !iwlmvm_mod_params.init_dbg) { |
| IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); |
| goto error; |
| } |
| } |
| |
| if (iwlmvm_mod_params.init_dbg) |
| return 0; |
| |
| ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret); |
| goto error; |
| } |
| |
| ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw)); |
| if (ret) |
| goto error; |
| |
| ret = iwl_send_bt_prio_tbl(mvm); |
| if (ret) |
| goto error; |
| |
| ret = iwl_send_bt_init_conf(mvm); |
| if (ret) |
| goto error; |
| |
| /* Send phy db control command and then phy db calibration*/ |
| ret = iwl_send_phy_db_data(mvm->phy_db); |
| if (ret) |
| goto error; |
| |
| ret = iwl_send_phy_cfg_cmd(mvm); |
| if (ret) |
| goto error; |
| |
| /* init the fw <-> mac80211 STA mapping */ |
| for (i = 0; i < IWL_MVM_STATION_COUNT; i++) |
| RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL); |
| |
| /* Add auxiliary station for scanning */ |
| ret = iwl_mvm_add_aux_sta(mvm); |
| if (ret) |
| goto error; |
| |
| IWL_DEBUG_INFO(mvm, "RT uCode started.\n"); |
| |
| return 0; |
| error: |
| iwl_trans_stop_device(mvm->trans); |
| return ret; |
| } |
| |
| int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm) |
| { |
| int ret, i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| ret = iwl_trans_start_hw(mvm->trans); |
| if (ret) |
| return ret; |
| |
| ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret); |
| goto error; |
| } |
| |
| ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw)); |
| if (ret) |
| goto error; |
| |
| /* Send phy db control command and then phy db calibration*/ |
| ret = iwl_send_phy_db_data(mvm->phy_db); |
| if (ret) |
| goto error; |
| |
| ret = iwl_send_phy_cfg_cmd(mvm); |
| if (ret) |
| goto error; |
| |
| /* init the fw <-> mac80211 STA mapping */ |
| for (i = 0; i < IWL_MVM_STATION_COUNT; i++) |
| RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL); |
| |
| /* Add auxiliary station for scanning */ |
| ret = iwl_mvm_add_aux_sta(mvm); |
| if (ret) |
| goto error; |
| |
| return 0; |
| error: |
| iwl_trans_stop_device(mvm->trans); |
| return ret; |
| } |
| |
| int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm, |
| struct iwl_rx_cmd_buffer *rxb, |
| struct iwl_device_cmd *cmd) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_card_state_notif *card_state_notif = (void *)pkt->data; |
| u32 flags = le32_to_cpu(card_state_notif->flags); |
| |
| IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n", |
| (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
| (flags & SW_CARD_DISABLED) ? "Kill" : "On", |
| (flags & CT_KILL_CARD_DISABLED) ? |
| "Reached" : "Not reached"); |
| |
| return 0; |
| } |
| |
| int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, |
| struct iwl_device_cmd *cmd) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_radio_version_notif *radio_version = (void *)pkt->data; |
| |
| /* TODO: what to do with that? */ |
| IWL_DEBUG_INFO(mvm, |
| "Radio version: flavor: 0x%08x, step 0x%08x, dash 0x%08x\n", |
| le32_to_cpu(radio_version->radio_flavor), |
| le32_to_cpu(radio_version->radio_step), |
| le32_to_cpu(radio_version->radio_dash)); |
| return 0; |
| } |