/****************************************************************************** * * GPL LICENSE SUMMARY * * Copyright(c) 2008 - 2012 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 LICENSE.GPL. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #include #include #include #include #include #include #include "iwl-ucode.h" #include "iwl-wifi.h" #include "iwl-dev.h" #include "iwl-core.h" #include "iwl-io.h" #include "iwl-agn-hw.h" #include "iwl-agn.h" #include "iwl-agn-calib.h" #include "iwl-trans.h" #include "iwl-fh.h" static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = { {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP, 0, COEX_UNASSOC_IDLE_FLAGS}, {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS}, {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS}, {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP, 0, COEX_CALIBRATION_FLAGS}, {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP, 0, COEX_PERIODIC_CALIBRATION_FLAGS}, {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP, 0, COEX_CONNECTION_ESTAB_FLAGS}, {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP, 0, COEX_ASSOCIATED_IDLE_FLAGS}, {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS}, {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP, 0, COEX_ASSOC_AUTO_SCAN_FLAGS}, {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS}, {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS}, {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS}, {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP, 0, COEX_STAND_ALONE_DEBUG_FLAGS}, {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS}, {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS}, {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS} }; /****************************************************************************** * * uCode download functions * ******************************************************************************/ static void iwl_free_fw_desc(struct iwl_trans *trans, struct fw_desc *desc) { if (desc->v_addr) dma_free_coherent(trans->dev, desc->len, desc->v_addr, desc->p_addr); desc->v_addr = NULL; desc->len = 0; } static void iwl_free_fw_img(struct iwl_trans *trans, struct fw_img *img) { iwl_free_fw_desc(trans, &img->code); iwl_free_fw_desc(trans, &img->data); } void iwl_dealloc_ucode(struct iwl_trans *trans) { iwl_free_fw_img(trans, &trans->ucode_rt); iwl_free_fw_img(trans, &trans->ucode_init); iwl_free_fw_img(trans, &trans->ucode_wowlan); } static int iwl_alloc_fw_desc(struct iwl_trans *trans, struct fw_desc *desc, const void *data, size_t len) { if (!len) { desc->v_addr = NULL; return -EINVAL; } desc->v_addr = dma_alloc_coherent(trans->dev, len, &desc->p_addr, GFP_KERNEL); if (!desc->v_addr) return -ENOMEM; desc->len = len; memcpy(desc->v_addr, data, len); return 0; } static inline struct fw_img *iwl_get_ucode_image(struct iwl_trans *trans, enum iwl_ucode_type ucode_type) { switch (ucode_type) { case IWL_UCODE_INIT: return &trans->ucode_init; case IWL_UCODE_WOWLAN: return &trans->ucode_wowlan; case IWL_UCODE_REGULAR: return &trans->ucode_rt; case IWL_UCODE_NONE: break; } return NULL; } /* * Calibration */ static int iwl_set_Xtal_calib(struct iwl_trans *trans) { struct iwl_calib_xtal_freq_cmd cmd; __le16 *xtal_calib = (__le16 *)iwl_eeprom_query_addr(trans->shrd, EEPROM_XTAL); iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD); cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]); cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]); return iwl_calib_set(trans, (void *)&cmd, sizeof(cmd)); } static int iwl_set_temperature_offset_calib(struct iwl_trans *trans) { struct iwl_calib_temperature_offset_cmd cmd; __le16 *offset_calib = (__le16 *)iwl_eeprom_query_addr(trans->shrd, EEPROM_RAW_TEMPERATURE); memset(&cmd, 0, sizeof(cmd)); iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD); memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(*offset_calib)); if (!(cmd.radio_sensor_offset)) cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET; IWL_DEBUG_CALIB(trans, "Radio sensor offset: %d\n", le16_to_cpu(cmd.radio_sensor_offset)); return iwl_calib_set(trans, (void *)&cmd, sizeof(cmd)); } static int iwl_set_temperature_offset_calib_v2(struct iwl_trans *trans) { struct iwl_calib_temperature_offset_v2_cmd cmd; __le16 *offset_calib_high = (__le16 *)iwl_eeprom_query_addr(trans->shrd, EEPROM_KELVIN_TEMPERATURE); __le16 *offset_calib_low = (__le16 *)iwl_eeprom_query_addr(trans->shrd, EEPROM_RAW_TEMPERATURE); struct iwl_eeprom_calib_hdr *hdr; memset(&cmd, 0, sizeof(cmd)); iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD); hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(trans->shrd, EEPROM_CALIB_ALL); memcpy(&cmd.radio_sensor_offset_high, offset_calib_high, sizeof(*offset_calib_high)); memcpy(&cmd.radio_sensor_offset_low, offset_calib_low, sizeof(*offset_calib_low)); if (!(cmd.radio_sensor_offset_low)) { IWL_DEBUG_CALIB(trans, "no info in EEPROM, use default\n"); cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET; cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET; } memcpy(&cmd.burntVoltageRef, &hdr->voltage, sizeof(hdr->voltage)); IWL_DEBUG_CALIB(trans, "Radio sensor offset high: %d\n", le16_to_cpu(cmd.radio_sensor_offset_high)); IWL_DEBUG_CALIB(trans, "Radio sensor offset low: %d\n", le16_to_cpu(cmd.radio_sensor_offset_low)); IWL_DEBUG_CALIB(trans, "Voltage Ref: %d\n", le16_to_cpu(cmd.burntVoltageRef)); return iwl_calib_set(trans, (void *)&cmd, sizeof(cmd)); } static int iwl_send_calib_cfg(struct iwl_trans *trans) { struct iwl_calib_cfg_cmd calib_cfg_cmd; struct iwl_host_cmd cmd = { .id = CALIBRATION_CFG_CMD, .len = { sizeof(struct iwl_calib_cfg_cmd), }, .data = { &calib_cfg_cmd, }, }; memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK; return iwl_trans_send_cmd(trans, &cmd); } int iwlagn_rx_calib_result(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb, struct iwl_device_cmd *cmd) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw; int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; /* reduce the size of the length field itself */ len -= 4; if (iwl_calib_set(trans(priv), hdr, len)) IWL_ERR(priv, "Failed to record calibration data %d\n", hdr->op_code); return 0; } int iwl_init_alive_start(struct iwl_trans *trans) { int ret; if (cfg(trans)->bt_params && cfg(trans)->bt_params->advanced_bt_coexist) { /* * Tell uCode we are ready to perform calibration * need to perform this before any calibration * no need to close the envlope since we are going * to load the runtime uCode later. */ ret = iwl_send_bt_env(trans, IWL_BT_COEX_ENV_OPEN, BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; } ret = iwl_send_calib_cfg(trans); if (ret) return ret; /** * temperature offset calibration is only needed for runtime ucode, * so prepare the value now. */ if (cfg(trans)->need_temp_offset_calib) { if (cfg(trans)->temp_offset_v2) return iwl_set_temperature_offset_calib_v2(trans); else return iwl_set_temperature_offset_calib(trans); } return 0; } static int iwl_send_wimax_coex(struct iwl_trans *trans) { struct iwl_wimax_coex_cmd coex_cmd; if (cfg(trans)->base_params->support_wimax_coexist) { /* UnMask wake up src at associated sleep */ coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK; /* UnMask wake up src at unassociated sleep */ coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK; memcpy(coex_cmd.sta_prio, cu_priorities, sizeof(struct iwl_wimax_coex_event_entry) * COEX_NUM_OF_EVENTS); /* enabling the coexistence feature */ coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK; /* enabling the priorities tables */ coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK; } else { /* coexistence is disabled */ memset(&coex_cmd, 0, sizeof(coex_cmd)); } return iwl_trans_send_cmd_pdu(trans, COEX_PRIORITY_TABLE_CMD, CMD_SYNC, sizeof(coex_cmd), &coex_cmd); } static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 0, 0, 0, 0, 0, 0, 0 }; void iwl_send_prio_tbl(struct iwl_trans *trans) { struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd; memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl, sizeof(iwl_bt_prio_tbl)); if (iwl_trans_send_cmd_pdu(trans, REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC, sizeof(prio_tbl_cmd), &prio_tbl_cmd)) IWL_ERR(trans, "failed to send BT prio tbl command\n"); } int iwl_send_bt_env(struct iwl_trans *trans, u8 action, u8 type) { struct iwl_bt_coex_prot_env_cmd env_cmd; int ret; env_cmd.action = action; env_cmd.type = type; ret = iwl_trans_send_cmd_pdu(trans, REPLY_BT_COEX_PROT_ENV, CMD_SYNC, sizeof(env_cmd), &env_cmd); if (ret) IWL_ERR(trans, "failed to send BT env command\n"); return ret; } static int iwl_alive_notify(struct iwl_trans *trans) { struct iwl_priv *priv = priv(trans); struct iwl_rxon_context *ctx; int ret; if (!priv->tx_cmd_pool) priv->tx_cmd_pool = kmem_cache_create("iwl_dev_cmd", sizeof(struct iwl_device_cmd), sizeof(void *), 0, NULL); if (!priv->tx_cmd_pool) return -ENOMEM; iwl_trans_fw_alive(trans); for_each_context(priv, ctx) ctx->last_tx_rejected = false; ret = iwl_send_wimax_coex(trans); if (ret) return ret; if (!cfg(priv)->no_xtal_calib) { ret = iwl_set_Xtal_calib(trans); if (ret) return ret; } return iwl_send_calib_results(trans); } /** * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, * using sample data 100 bytes apart. If these sample points are good, * it's a pretty good bet that everything between them is good, too. */ static int iwl_verify_inst_sparse(struct iwl_trans *trans, struct fw_desc *fw_desc) { __le32 *image = (__le32 *)fw_desc->v_addr; u32 len = fw_desc->len; u32 val; u32 i; IWL_DEBUG_FW(trans, "ucode inst image size is %u\n", len); for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { /* read data comes through single port, auto-incr addr */ /* NOTE: Use the debugless read so we don't flood kernel log * if IWL_DL_IO is set */ iwl_write_direct32(trans, HBUS_TARG_MEM_RADDR, i + IWLAGN_RTC_INST_LOWER_BOUND); val = iwl_read32(trans, HBUS_TARG_MEM_RDAT); if (val != le32_to_cpu(*image)) return -EIO; } return 0; } static void iwl_print_mismatch_inst(struct iwl_trans *trans, struct fw_desc *fw_desc) { __le32 *image = (__le32 *)fw_desc->v_addr; u32 len = fw_desc->len; u32 val; u32 offs; int errors = 0; IWL_DEBUG_FW(trans, "ucode inst image size is %u\n", len); iwl_write_direct32(trans, HBUS_TARG_MEM_RADDR, IWLAGN_RTC_INST_LOWER_BOUND); for (offs = 0; offs < len && errors < 20; offs += sizeof(u32), image++) { /* read data comes through single port, auto-incr addr */ val = iwl_read32(trans, HBUS_TARG_MEM_RDAT); if (val != le32_to_cpu(*image)) { IWL_ERR(trans, "uCode INST section at " "offset 0x%x, is 0x%x, s/b 0x%x\n", offs, val, le32_to_cpu(*image)); errors++; } } } /** * iwl_verify_ucode - determine which instruction image is in SRAM, * and verify its contents */ static int iwl_verify_ucode(struct iwl_trans *trans, enum iwl_ucode_type ucode_type) { struct fw_img *img = iwl_get_ucode_image(trans, ucode_type); if (!img) { IWL_ERR(trans, "Invalid ucode requested (%d)\n", ucode_type); return -EINVAL; } if (!iwl_verify_inst_sparse(trans, &img->code)) { IWL_DEBUG_FW(trans, "uCode is good in inst SRAM\n"); return 0; } IWL_ERR(trans, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n"); iwl_print_mismatch_inst(trans, &img->code); return -EIO; } struct iwl_alive_data { bool valid; u8 subtype; }; static void iwl_alive_fn(struct iwl_trans *trans, struct iwl_rx_packet *pkt, void *data) { struct iwl_alive_data *alive_data = data; struct iwl_alive_resp *palive; palive = &pkt->u.alive_frame; IWL_DEBUG_FW(trans, "Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n", palive->is_valid, palive->ver_type, palive->ver_subtype); trans->shrd->device_pointers.error_event_table = le32_to_cpu(palive->error_event_table_ptr); trans->shrd->device_pointers.log_event_table = le32_to_cpu(palive->log_event_table_ptr); alive_data->subtype = palive->ver_subtype; alive_data->valid = palive->is_valid == UCODE_VALID_OK; } /* notification wait support */ void iwl_init_notification_wait(struct iwl_shared *shrd, struct iwl_notification_wait *wait_entry, u8 cmd, void (*fn)(struct iwl_trans *trans, struct iwl_rx_packet *pkt, void *data), void *fn_data) { wait_entry->fn = fn; wait_entry->fn_data = fn_data; wait_entry->cmd = cmd; wait_entry->triggered = false; wait_entry->aborted = false; spin_lock_bh(&shrd->notif_wait_lock); list_add(&wait_entry->list, &shrd->notif_waits); spin_unlock_bh(&shrd->notif_wait_lock); } int iwl_wait_notification(struct iwl_shared *shrd, struct iwl_notification_wait *wait_entry, unsigned long timeout) { int ret; ret = wait_event_timeout(shrd->notif_waitq, wait_entry->triggered || wait_entry->aborted, timeout); spin_lock_bh(&shrd->notif_wait_lock); list_del(&wait_entry->list); spin_unlock_bh(&shrd->notif_wait_lock); if (wait_entry->aborted) return -EIO; /* return value is always >= 0 */ if (ret <= 0) return -ETIMEDOUT; return 0; } void iwl_remove_notification(struct iwl_shared *shrd, struct iwl_notification_wait *wait_entry) { spin_lock_bh(&shrd->notif_wait_lock); list_del(&wait_entry->list); spin_unlock_bh(&shrd->notif_wait_lock); } void iwl_abort_notification_waits(struct iwl_shared *shrd) { unsigned long flags; struct iwl_notification_wait *wait_entry; spin_lock_irqsave(&shrd->notif_wait_lock, flags); list_for_each_entry(wait_entry, &shrd->notif_waits, list) wait_entry->aborted = true; spin_unlock_irqrestore(&shrd->notif_wait_lock, flags); wake_up_all(&shrd->notif_waitq); } #define UCODE_ALIVE_TIMEOUT HZ #define UCODE_CALIB_TIMEOUT (2*HZ) int iwl_load_ucode_wait_alive(struct iwl_trans *trans, enum iwl_ucode_type ucode_type) { struct iwl_notification_wait alive_wait; struct iwl_alive_data alive_data; struct fw_img *fw; int ret; enum iwl_ucode_type old_type; iwl_init_notification_wait(trans->shrd, &alive_wait, REPLY_ALIVE, iwl_alive_fn, &alive_data); old_type = trans->shrd->ucode_type; trans->shrd->ucode_type = ucode_type; fw = iwl_get_ucode_image(trans, ucode_type); if (!fw) return -EINVAL; ret = iwl_trans_start_fw(trans, fw); if (ret) { trans->shrd->ucode_type = old_type; iwl_remove_notification(trans->shrd, &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(trans->shrd, &alive_wait, UCODE_ALIVE_TIMEOUT); if (ret) { trans->shrd->ucode_type = old_type; return ret; } if (!alive_data.valid) { IWL_ERR(trans, "Loaded ucode is not valid!\n"); trans->shrd->ucode_type = old_type; return -EIO; } /* * This step takes a long time (60-80ms!!) and * WoWLAN image should be loaded quickly, so * skip it for WoWLAN. */ if (ucode_type != IWL_UCODE_WOWLAN) { ret = iwl_verify_ucode(trans, ucode_type); if (ret) { trans->shrd->ucode_type = old_type; return ret; } /* delay a bit to give rfkill time to run */ msleep(5); } ret = iwl_alive_notify(trans); if (ret) { IWL_WARN(trans, "Could not complete ALIVE transition: %d\n", ret); trans->shrd->ucode_type = old_type; return ret; } return 0; } int iwl_run_init_ucode(struct iwl_trans *trans) { struct iwl_notification_wait calib_wait; int ret; lockdep_assert_held(&trans->shrd->mutex); /* No init ucode required? Curious, but maybe ok */ if (!trans->ucode_init.code.len) return 0; if (trans->shrd->ucode_type != IWL_UCODE_NONE) return 0; iwl_init_notification_wait(trans->shrd, &calib_wait, CALIBRATION_COMPLETE_NOTIFICATION, NULL, NULL); /* Will also start the device */ ret = iwl_load_ucode_wait_alive(trans, IWL_UCODE_INIT); if (ret) goto error; ret = iwl_init_alive_start(trans); if (ret) goto error; /* * Some things may run in the background now, but we * just wait for the calibration complete notification. */ ret = iwl_wait_notification(trans->shrd, &calib_wait, UCODE_CALIB_TIMEOUT); goto out; error: iwl_remove_notification(trans->shrd, &calib_wait); out: /* Whatever happened, stop the device */ iwl_trans_stop_device(trans); return ret; } static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); #define UCODE_EXPERIMENTAL_INDEX 100 #define UCODE_EXPERIMENTAL_TAG "exp" int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) { const char *name_pre = cfg(priv)->fw_name_pre; char tag[8]; if (first) { #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE priv->fw_index = UCODE_EXPERIMENTAL_INDEX; strcpy(tag, UCODE_EXPERIMENTAL_TAG); } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) { #endif priv->fw_index = cfg(priv)->ucode_api_max; sprintf(tag, "%d", priv->fw_index); } else { priv->fw_index--; sprintf(tag, "%d", priv->fw_index); } if (priv->fw_index < cfg(priv)->ucode_api_min) { IWL_ERR(priv, "no suitable firmware found!\n"); return -ENOENT; } sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n", (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) ? "EXPERIMENTAL " : "", priv->firmware_name); return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, trans(priv)->dev, GFP_KERNEL, priv, iwl_ucode_callback); } struct iwlagn_firmware_pieces { const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data; size_t inst_size, data_size, init_size, init_data_size, wowlan_inst_size, wowlan_data_size; u32 build; u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; }; static int iwlagn_load_legacy_firmware(struct iwl_priv *priv, const struct firmware *ucode_raw, struct iwlagn_firmware_pieces *pieces) { struct iwl_nic *nic = nic(priv); struct iwl_ucode_header *ucode = (void *)ucode_raw->data; u32 api_ver, hdr_size; const u8 *src; nic->fw.ucode_ver = le32_to_cpu(ucode->ver); api_ver = IWL_UCODE_API(nic->fw.ucode_ver); switch (api_ver) { default: hdr_size = 28; if (ucode_raw->size < hdr_size) { IWL_ERR(priv, "File size too small!\n"); return -EINVAL; } pieces->build = le32_to_cpu(ucode->u.v2.build); pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); src = ucode->u.v2.data; break; case 0: case 1: case 2: hdr_size = 24; if (ucode_raw->size < hdr_size) { IWL_ERR(priv, "File size too small!\n"); return -EINVAL; } pieces->build = 0; pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size); pieces->data_size = le32_to_cpu(ucode->u.v1.data_size); pieces->init_size = le32_to_cpu(ucode->u.v1.init_size); pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size); src = ucode->u.v1.data; break; } /* Verify size of file vs. image size info in file's header */ if (ucode_raw->size != hdr_size + pieces->inst_size + pieces->data_size + pieces->init_size + pieces->init_data_size) { IWL_ERR(priv, "uCode file size %d does not match expected size\n", (int)ucode_raw->size); return -EINVAL; } pieces->inst = src; src += pieces->inst_size; pieces->data = src; src += pieces->data_size; pieces->init = src; src += pieces->init_size; pieces->init_data = src; src += pieces->init_data_size; return 0; } static int iwlagn_load_firmware(struct iwl_priv *priv, const struct firmware *ucode_raw, struct iwlagn_firmware_pieces *pieces, struct iwlagn_ucode_capabilities *capa) { struct iwl_nic *nic = nic(priv); struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; struct iwl_ucode_tlv *tlv; size_t len = ucode_raw->size; const u8 *data; int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative; int tmp; u64 alternatives; u32 tlv_len; enum iwl_ucode_tlv_type tlv_type; const u8 *tlv_data; if (len < sizeof(*ucode)) { IWL_ERR(priv, "uCode has invalid length: %zd\n", len); return -EINVAL; } if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { IWL_ERR(priv, "invalid uCode magic: 0X%x\n", le32_to_cpu(ucode->magic)); return -EINVAL; } /* * Check which alternatives are present, and "downgrade" * when the chosen alternative is not present, warning * the user when that happens. Some files may not have * any alternatives, so don't warn in that case. */ alternatives = le64_to_cpu(ucode->alternatives); tmp = wanted_alternative; if (wanted_alternative > 63) wanted_alternative = 63; while (wanted_alternative && !(alternatives & BIT(wanted_alternative))) wanted_alternative--; if (wanted_alternative && wanted_alternative != tmp) IWL_WARN(priv, "uCode alternative %d not available, choosing %d\n", tmp, wanted_alternative); nic->fw.ucode_ver = le32_to_cpu(ucode->ver); pieces->build = le32_to_cpu(ucode->build); data = ucode->data; len -= sizeof(*ucode); while (len >= sizeof(*tlv)) { u16 tlv_alt; len -= sizeof(*tlv); tlv = (void *)data; tlv_len = le32_to_cpu(tlv->length); tlv_type = le16_to_cpu(tlv->type); tlv_alt = le16_to_cpu(tlv->alternative); tlv_data = tlv->data; if (len < tlv_len) { IWL_ERR(priv, "invalid TLV len: %zd/%u\n", len, tlv_len); return -EINVAL; } len -= ALIGN(tlv_len, 4); data += sizeof(*tlv) + ALIGN(tlv_len, 4); /* * Alternative 0 is always valid. * * Skip alternative TLVs that are not selected. */ if (tlv_alt != 0 && tlv_alt != wanted_alternative) continue; switch (tlv_type) { case IWL_UCODE_TLV_INST: pieces->inst = tlv_data; pieces->inst_size = tlv_len; break; case IWL_UCODE_TLV_DATA: pieces->data = tlv_data; pieces->data_size = tlv_len; break; case IWL_UCODE_TLV_INIT: pieces->init = tlv_data; pieces->init_size = tlv_len; break; case IWL_UCODE_TLV_INIT_DATA: pieces->init_data = tlv_data; pieces->init_data_size = tlv_len; break; case IWL_UCODE_TLV_BOOT: IWL_ERR(priv, "Found unexpected BOOT ucode\n"); break; case IWL_UCODE_TLV_PROBE_MAX_LEN: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; capa->max_probe_length = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_PAN: if (tlv_len) goto invalid_tlv_len; capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; break; case IWL_UCODE_TLV_FLAGS: /* must be at least one u32 */ if (tlv_len < sizeof(u32)) goto invalid_tlv_len; /* and a proper number of u32s */ if (tlv_len % sizeof(u32)) goto invalid_tlv_len; /* * This driver only reads the first u32 as * right now no more features are defined, * if that changes then either the driver * will not work with the new firmware, or * it'll not take advantage of new features. */ capa->flags = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_INIT_EVTLOG_PTR: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; pieces->init_evtlog_ptr = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; pieces->init_evtlog_size = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_INIT_ERRLOG_PTR: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; pieces->init_errlog_ptr = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; pieces->inst_evtlog_ptr = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; pieces->inst_evtlog_size = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; pieces->inst_errlog_ptr = le32_to_cpup((__le32 *)tlv_data); break; case IWL_UCODE_TLV_ENHANCE_SENS_TBL: if (tlv_len) goto invalid_tlv_len; priv->enhance_sensitivity_table = true; break; case IWL_UCODE_TLV_WOWLAN_INST: pieces->wowlan_inst = tlv_data; pieces->wowlan_inst_size = tlv_len; break; case IWL_UCODE_TLV_WOWLAN_DATA: pieces->wowlan_data = tlv_data; pieces->wowlan_data_size = tlv_len; break; case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; capa->standard_phy_calibration_size = le32_to_cpup((__le32 *)tlv_data); break; default: IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type); break; } } if (len) { IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len); iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len); return -EINVAL; } return 0; invalid_tlv_len: IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len); return -EINVAL; } /** * iwl_ucode_callback - callback when firmware was loaded * * If loaded successfully, copies the firmware into buffers * for the card to fetch (via DMA). */ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) { struct iwl_priv *priv = context; struct iwl_nic *nic = nic(priv); struct iwl_ucode_header *ucode; int err; struct iwlagn_firmware_pieces pieces; const unsigned int api_max = cfg(priv)->ucode_api_max; unsigned int api_ok = cfg(priv)->ucode_api_ok; const unsigned int api_min = cfg(priv)->ucode_api_min; u32 api_ver; char buildstr[25]; u32 build; struct iwlagn_ucode_capabilities ucode_capa = { .max_probe_length = 200, .standard_phy_calibration_size = IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE, }; if (!api_ok) api_ok = api_max; memset(&pieces, 0, sizeof(pieces)); if (!ucode_raw) { if (priv->fw_index <= api_ok) IWL_ERR(priv, "request for firmware file '%s' failed.\n", priv->firmware_name); goto try_again; } IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", priv->firmware_name, ucode_raw->size); /* Make sure that we got at least the API version number */ if (ucode_raw->size < 4) { IWL_ERR(priv, "File size way too small!\n"); goto try_again; } /* Data from ucode file: header followed by uCode images */ ucode = (struct iwl_ucode_header *)ucode_raw->data; if (ucode->ver) err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces); else err = iwlagn_load_firmware(priv, ucode_raw, &pieces, &ucode_capa); if (err) goto try_again; api_ver = IWL_UCODE_API(nic->fw.ucode_ver); build = pieces.build; /* * api_ver should match the api version forming part of the * firmware filename ... but we don't check for that and only rely * on the API version read from firmware header from here on forward */ /* no api version check required for experimental uCode */ if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) { if (api_ver < api_min || api_ver > api_max) { IWL_ERR(priv, "Driver unable to support your firmware API. " "Driver supports v%u, firmware is v%u.\n", api_max, api_ver); goto try_again; } if (api_ver < api_ok) { if (api_ok != api_max) IWL_ERR(priv, "Firmware has old API version, " "expected v%u through v%u, got v%u.\n", api_ok, api_max, api_ver); else IWL_ERR(priv, "Firmware has old API version, " "expected v%u, got v%u.\n", api_max, api_ver); IWL_ERR(priv, "New firmware can be obtained from " "http://www.intellinuxwireless.org/.\n"); } } if (build) sprintf(buildstr, " build %u%s", build, (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) ? " (EXP)" : ""); else buildstr[0] = '\0'; IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n", IWL_UCODE_MAJOR(nic->fw.ucode_ver), IWL_UCODE_MINOR(nic->fw.ucode_ver), IWL_UCODE_API(nic->fw.ucode_ver), IWL_UCODE_SERIAL(nic->fw.ucode_ver), buildstr); snprintf(priv->hw->wiphy->fw_version, sizeof(priv->hw->wiphy->fw_version), "%u.%u.%u.%u%s", IWL_UCODE_MAJOR(nic->fw.ucode_ver), IWL_UCODE_MINOR(nic->fw.ucode_ver), IWL_UCODE_API(nic->fw.ucode_ver), IWL_UCODE_SERIAL(nic->fw.ucode_ver), buildstr); /* * For any of the failures below (before allocating pci memory) * we will try to load a version with a smaller API -- maybe the * user just got a corrupted version of the latest API. */ IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", nic->fw.ucode_ver); IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n", pieces.inst_size); IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n", pieces.data_size); IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n", pieces.init_size); IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n", pieces.init_data_size); /* Verify that uCode images will fit in card's SRAM */ if (pieces.inst_size > hw_params(priv).max_inst_size) { IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n", pieces.inst_size); goto try_again; } if (pieces.data_size > hw_params(priv).max_data_size) { IWL_ERR(priv, "uCode data len %Zd too large to fit in\n", pieces.data_size); goto try_again; } if (pieces.init_size > hw_params(priv).max_inst_size) { IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n", pieces.init_size); goto try_again; } if (pieces.init_data_size > hw_params(priv).max_data_size) { IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n", pieces.init_data_size); goto try_again; } /* Allocate ucode buffers for card's bus-master loading ... */ /* Runtime instructions and 2 copies of data: * 1) unmodified from disk * 2) backup cache for save/restore during power-downs */ if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_rt.code, pieces.inst, pieces.inst_size)) goto err_pci_alloc; if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_rt.data, pieces.data, pieces.data_size)) goto err_pci_alloc; /* Initialization instructions and data */ if (pieces.init_size && pieces.init_data_size) { if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_init.code, pieces.init, pieces.init_size)) goto err_pci_alloc; if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_init.data, pieces.init_data, pieces.init_data_size)) goto err_pci_alloc; } /* WoWLAN instructions and data */ if (pieces.wowlan_inst_size && pieces.wowlan_data_size) { if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_wowlan.code, pieces.wowlan_inst, pieces.wowlan_inst_size)) goto err_pci_alloc; if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_wowlan.data, pieces.wowlan_data, pieces.wowlan_data_size)) goto err_pci_alloc; } /* Now that we can no longer fail, copy information */ /* * The (size - 16) / 12 formula is based on the information recorded * for each event, which is of mode 1 (including timestamp) for all * new microcodes that include this information. */ priv->init_evtlog_ptr = pieces.init_evtlog_ptr; if (pieces.init_evtlog_size) priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; else priv->init_evtlog_size = cfg(priv)->base_params->max_event_log_size; priv->init_errlog_ptr = pieces.init_errlog_ptr; priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr; if (pieces.inst_evtlog_size) priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; else priv->inst_evtlog_size = cfg(priv)->base_params->max_event_log_size; priv->inst_errlog_ptr = pieces.inst_errlog_ptr; #ifndef CONFIG_IWLWIFI_P2P ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN; #endif priv->new_scan_threshold_behaviour = !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); if (!(cfg(priv)->sku & EEPROM_SKU_CAP_IPAN_ENABLE)) ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN; /* * if not PAN, then don't support P2P -- might be a uCode * packaging bug or due to the eeprom check above */ if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN)) ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P; if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) { priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; } else { priv->sta_key_max_num = STA_KEY_MAX_NUM; priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; } /* * figure out the offset of chain noise reset and gain commands * base on the size of standard phy calibration commands table size */ if (ucode_capa.standard_phy_calibration_size > IWL_MAX_PHY_CALIBRATE_TBL_SIZE) ucode_capa.standard_phy_calibration_size = IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; priv->phy_calib_chain_noise_reset_cmd = ucode_capa.standard_phy_calibration_size; priv->phy_calib_chain_noise_gain_cmd = ucode_capa.standard_phy_calibration_size + 1; /* initialize all valid contexts */ iwl_init_context(priv, ucode_capa.flags); /************************************************** * This is still part of probe() in a sense... * * 9. Setup and register with mac80211 and debugfs **************************************************/ err = iwlagn_mac_setup_register(priv, &ucode_capa); if (err) goto out_unbind; err = iwl_dbgfs_register(priv, DRV_NAME); if (err) IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); /* We have our copies now, allow OS release its copies */ release_firmware(ucode_raw); complete(&priv->firmware_loading_complete); return; try_again: /* try next, if any */ if (iwl_request_firmware(priv, false)) goto out_unbind; release_firmware(ucode_raw); return; err_pci_alloc: IWL_ERR(priv, "failed to allocate pci memory\n"); iwl_dealloc_ucode(trans(priv)); out_unbind: complete(&priv->firmware_loading_complete); device_release_driver(trans(priv)->dev); release_firmware(ucode_raw); }