| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Johannes Berg | 3335 | 35.59% | 92 | 31.83% |
| Meenakshi Venkataraman | 2450 | 26.15% | 17 | 5.88% |
| Wey-Yi Guy | 1025 | 10.94% | 32 | 11.07% |
| Emmanuel Grumbach | 759 | 8.10% | 52 | 17.99% |
| Sharon Dvir | 435 | 4.64% | 1 | 0.35% |
| Yi Zhu | 255 | 2.72% | 2 | 0.69% |
| Daniel C. Halperin | 200 | 2.13% | 2 | 0.69% |
| Tomas Winkler | 157 | 1.68% | 20 | 6.92% |
| Samuel Ortiz | 127 | 1.36% | 3 | 1.04% |
| Don Fry | 124 | 1.32% | 14 | 4.84% |
| Eytan Lifshitz | 96 | 1.02% | 1 | 0.35% |
| Luciano Coelho | 95 | 1.01% | 3 | 1.04% |
| Reinette Chatre | 75 | 0.80% | 8 | 2.77% |
| Mohamed Abbas | 35 | 0.37% | 5 | 1.73% |
| Stanislaw Gruszka | 29 | 0.31% | 4 | 1.38% |
| Kees Cook | 28 | 0.30% | 1 | 0.35% |
| Assaf Krauss | 25 | 0.27% | 3 | 1.04% |
| Jay Sternberg | 16 | 0.17% | 2 | 0.69% |
| Shanyu Zhao | 15 | 0.16% | 2 | 0.69% |
| Amit Beka | 13 | 0.14% | 1 | 0.35% |
| Lilach Edelstein | 11 | 0.12% | 2 | 0.69% |
| Ilan Peer | 11 | 0.12% | 1 | 0.35% |
| Julia Lawall | 9 | 0.10% | 2 | 0.69% |
| Joe Perches | 7 | 0.07% | 1 | 0.35% |
| David Spinadel | 6 | 0.06% | 1 | 0.35% |
| Ron Rindjunsky | 5 | 0.05% | 4 | 1.38% |
| Guy Cohen | 4 | 0.04% | 1 | 0.35% |
| John W. Linville | 4 | 0.04% | 2 | 0.69% |
| Alexey Dobriyan | 3 | 0.03% | 1 | 0.35% |
| Tejun Heo | 3 | 0.03% | 1 | 0.35% |
| Eva Rachel Retuya | 3 | 0.03% | 1 | 0.35% |
| Ester Kummer | 2 | 0.02% | 2 | 0.69% |
| Dan Carpenter | 2 | 0.02% | 1 | 0.35% |
| Abhijeet Kolekar | 2 | 0.02% | 1 | 0.35% |
| Arik Nemtsov | 2 | 0.02% | 1 | 0.35% |
| Cindy H. Kao | 1 | 0.01% | 1 | 0.35% |
| Paul Bolle | 1 | 0.01% | 1 | 0.35% |
| Total | 9370 | 289 |
/****************************************************************************** * * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2015 Intel Deutschland GmbH * Copyright (C) 2018 Intel Corporation * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. * * 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 LICENSE. * * Contact Information: * Intel Linux Wireless <linuxwifi@intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/sched.h> #include <linux/skbuff.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/if_arp.h> #include <net/mac80211.h> #include <asm/div64.h> #include "iwl-eeprom-read.h" #include "iwl-eeprom-parse.h" #include "iwl-io.h" #include "iwl-trans.h" #include "iwl-op-mode.h" #include "iwl-drv.h" #include "iwl-modparams.h" #include "iwl-prph.h" #include "dev.h" #include "calib.h" #include "agn.h" /****************************************************************************** * * module boiler plate * ******************************************************************************/ #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" MODULE_DESCRIPTION(DRV_DESCRIPTION); MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); MODULE_LICENSE("GPL"); /* Please keep this array *SORTED* by hex value. * Access is done through binary search. * A warning will be triggered on violation. */ static const struct iwl_hcmd_names iwl_dvm_cmd_names[] = { HCMD_NAME(REPLY_ALIVE), HCMD_NAME(REPLY_ERROR), HCMD_NAME(REPLY_ECHO), HCMD_NAME(REPLY_RXON), HCMD_NAME(REPLY_RXON_ASSOC), HCMD_NAME(REPLY_QOS_PARAM), HCMD_NAME(REPLY_RXON_TIMING), HCMD_NAME(REPLY_ADD_STA), HCMD_NAME(REPLY_REMOVE_STA), HCMD_NAME(REPLY_REMOVE_ALL_STA), HCMD_NAME(REPLY_TX), HCMD_NAME(REPLY_TXFIFO_FLUSH), HCMD_NAME(REPLY_WEPKEY), HCMD_NAME(REPLY_LEDS_CMD), HCMD_NAME(REPLY_TX_LINK_QUALITY_CMD), HCMD_NAME(COEX_PRIORITY_TABLE_CMD), HCMD_NAME(COEX_MEDIUM_NOTIFICATION), HCMD_NAME(COEX_EVENT_CMD), HCMD_NAME(TEMPERATURE_NOTIFICATION), HCMD_NAME(CALIBRATION_CFG_CMD), HCMD_NAME(CALIBRATION_RES_NOTIFICATION), HCMD_NAME(CALIBRATION_COMPLETE_NOTIFICATION), HCMD_NAME(REPLY_QUIET_CMD), HCMD_NAME(REPLY_CHANNEL_SWITCH), HCMD_NAME(CHANNEL_SWITCH_NOTIFICATION), HCMD_NAME(REPLY_SPECTRUM_MEASUREMENT_CMD), HCMD_NAME(SPECTRUM_MEASURE_NOTIFICATION), HCMD_NAME(POWER_TABLE_CMD), HCMD_NAME(PM_SLEEP_NOTIFICATION), HCMD_NAME(PM_DEBUG_STATISTIC_NOTIFIC), HCMD_NAME(REPLY_SCAN_CMD), HCMD_NAME(REPLY_SCAN_ABORT_CMD), HCMD_NAME(SCAN_START_NOTIFICATION), HCMD_NAME(SCAN_RESULTS_NOTIFICATION), HCMD_NAME(SCAN_COMPLETE_NOTIFICATION), HCMD_NAME(BEACON_NOTIFICATION), HCMD_NAME(REPLY_TX_BEACON), HCMD_NAME(WHO_IS_AWAKE_NOTIFICATION), HCMD_NAME(REPLY_TX_POWER_DBM_CMD), HCMD_NAME(QUIET_NOTIFICATION), HCMD_NAME(REPLY_TX_PWR_TABLE_CMD), HCMD_NAME(REPLY_TX_POWER_DBM_CMD_V1), HCMD_NAME(TX_ANT_CONFIGURATION_CMD), HCMD_NAME(MEASURE_ABORT_NOTIFICATION), HCMD_NAME(REPLY_BT_CONFIG), HCMD_NAME(REPLY_STATISTICS_CMD), HCMD_NAME(STATISTICS_NOTIFICATION), HCMD_NAME(REPLY_CARD_STATE_CMD), HCMD_NAME(CARD_STATE_NOTIFICATION), HCMD_NAME(MISSED_BEACONS_NOTIFICATION), HCMD_NAME(REPLY_CT_KILL_CONFIG_CMD), HCMD_NAME(SENSITIVITY_CMD), HCMD_NAME(REPLY_PHY_CALIBRATION_CMD), HCMD_NAME(REPLY_WIPAN_PARAMS), HCMD_NAME(REPLY_WIPAN_RXON), HCMD_NAME(REPLY_WIPAN_RXON_TIMING), HCMD_NAME(REPLY_WIPAN_RXON_ASSOC), HCMD_NAME(REPLY_WIPAN_QOS_PARAM), HCMD_NAME(REPLY_WIPAN_WEPKEY), HCMD_NAME(REPLY_WIPAN_P2P_CHANNEL_SWITCH), HCMD_NAME(REPLY_WIPAN_NOA_NOTIFICATION), HCMD_NAME(REPLY_WIPAN_DEACTIVATION_COMPLETE), HCMD_NAME(REPLY_RX_PHY_CMD), HCMD_NAME(REPLY_RX_MPDU_CMD), HCMD_NAME(REPLY_RX), HCMD_NAME(REPLY_COMPRESSED_BA), HCMD_NAME(REPLY_BT_COEX_PRIO_TABLE), HCMD_NAME(REPLY_BT_COEX_PROT_ENV), HCMD_NAME(REPLY_BT_COEX_PROFILE_NOTIF), HCMD_NAME(REPLY_D3_CONFIG), HCMD_NAME(REPLY_WOWLAN_PATTERNS), HCMD_NAME(REPLY_WOWLAN_WAKEUP_FILTER), HCMD_NAME(REPLY_WOWLAN_TSC_RSC_PARAMS), HCMD_NAME(REPLY_WOWLAN_TKIP_PARAMS), HCMD_NAME(REPLY_WOWLAN_KEK_KCK_MATERIAL), HCMD_NAME(REPLY_WOWLAN_GET_STATUS), }; static const struct iwl_hcmd_arr iwl_dvm_groups[] = { [0x0] = HCMD_ARR(iwl_dvm_cmd_names), }; static const struct iwl_op_mode_ops iwl_dvm_ops; void iwl_update_chain_flags(struct iwl_priv *priv) { struct iwl_rxon_context *ctx; for_each_context(priv, ctx) { iwlagn_set_rxon_chain(priv, ctx); if (ctx->active.rx_chain != ctx->staging.rx_chain) iwlagn_commit_rxon(priv, ctx); } } /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ static void iwl_set_beacon_tim(struct iwl_priv *priv, struct iwl_tx_beacon_cmd *tx_beacon_cmd, u8 *beacon, u32 frame_size) { u16 tim_idx; struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; /* * The index is relative to frame start but we start looking at the * variable-length part of the beacon. */ tim_idx = mgmt->u.beacon.variable - beacon; /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ while ((tim_idx < (frame_size - 2)) && (beacon[tim_idx] != WLAN_EID_TIM)) tim_idx += beacon[tim_idx+1] + 2; /* If TIM field was found, set variables */ if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); tx_beacon_cmd->tim_size = beacon[tim_idx+1]; } else IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); } int iwlagn_send_beacon_cmd(struct iwl_priv *priv) { struct iwl_tx_beacon_cmd *tx_beacon_cmd; struct iwl_host_cmd cmd = { .id = REPLY_TX_BEACON, }; struct ieee80211_tx_info *info; u32 frame_size; u32 rate_flags; u32 rate; /* * We have to set up the TX command, the TX Beacon command, and the * beacon contents. */ lockdep_assert_held(&priv->mutex); if (!priv->beacon_ctx) { IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); return 0; } if (WARN_ON(!priv->beacon_skb)) return -EINVAL; /* Allocate beacon command */ if (!priv->beacon_cmd) priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); tx_beacon_cmd = priv->beacon_cmd; if (!tx_beacon_cmd) return -ENOMEM; frame_size = priv->beacon_skb->len; /* Set up TX command fields */ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; /* Set up TX beacon command fields */ iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, frame_size); /* Set up packet rate and flags */ info = IEEE80211_SKB_CB(priv->beacon_skb); /* * Let's set up the rate at least somewhat correctly; * it will currently not actually be used by the uCode, * it uses the broadcast station's rate instead. */ if (info->control.rates[0].idx < 0 || info->control.rates[0].flags & IEEE80211_TX_RC_MCS) rate = 0; else rate = info->control.rates[0].idx; priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, priv->nvm_data->valid_tx_ant); rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); /* In mac80211, rates for 5 GHz start at 0 */ if (info->band == NL80211_BAND_5GHZ) rate += IWL_FIRST_OFDM_RATE; else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) rate_flags |= RATE_MCS_CCK_MSK; tx_beacon_cmd->tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate, rate_flags); /* Submit command */ cmd.len[0] = sizeof(*tx_beacon_cmd); cmd.data[0] = tx_beacon_cmd; cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; cmd.len[1] = frame_size; cmd.data[1] = priv->beacon_skb->data; cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; return iwl_dvm_send_cmd(priv, &cmd); } static void iwl_bg_beacon_update(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, beacon_update); struct sk_buff *beacon; mutex_lock(&priv->mutex); if (!priv->beacon_ctx) { IWL_ERR(priv, "updating beacon w/o beacon context!\n"); goto out; } if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { /* * The ucode will send beacon notifications even in * IBSS mode, but we don't want to process them. But * we need to defer the type check to here due to * requiring locking around the beacon_ctx access. */ goto out; } /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); if (!beacon) { IWL_ERR(priv, "update beacon failed -- keeping old\n"); goto out; } /* new beacon skb is allocated every time; dispose previous.*/ dev_kfree_skb(priv->beacon_skb); priv->beacon_skb = beacon; iwlagn_send_beacon_cmd(priv); out: mutex_unlock(&priv->mutex); } static void iwl_bg_bt_runtime_config(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, bt_runtime_config); mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) goto out; /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) goto out; iwlagn_send_advance_bt_config(priv); out: mutex_unlock(&priv->mutex); } static void iwl_bg_bt_full_concurrency(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, bt_full_concurrency); struct iwl_rxon_context *ctx; mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) goto out; /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) goto out; IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", priv->bt_full_concurrent ? "full concurrency" : "3-wire"); /* * LQ & RXON updated cmds must be sent before BT Config cmd * to avoid 3-wire collisions */ for_each_context(priv, ctx) { iwlagn_set_rxon_chain(priv, ctx); iwlagn_commit_rxon(priv, ctx); } iwlagn_send_advance_bt_config(priv); out: mutex_unlock(&priv->mutex); } int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) { struct iwl_statistics_cmd statistics_cmd = { .configuration_flags = clear ? IWL_STATS_CONF_CLEAR_STATS : 0, }; if (flags & CMD_ASYNC) return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, CMD_ASYNC, sizeof(struct iwl_statistics_cmd), &statistics_cmd); else return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, 0, sizeof(struct iwl_statistics_cmd), &statistics_cmd); } /** * iwl_bg_statistics_periodic - Timer callback to queue statistics * * This callback is provided in order to send a statistics request. * * This timer function is continually reset to execute within * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION * was received. We need to ensure we receive the statistics in order * to update the temperature used for calibrating the TXPOWER. */ static void iwl_bg_statistics_periodic(struct timer_list *t) { struct iwl_priv *priv = from_timer(priv, t, statistics_periodic); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) return; iwl_send_statistics_request(priv, CMD_ASYNC, false); } static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, u32 start_idx, u32 num_events, u32 capacity, u32 mode) { u32 i; u32 ptr; /* SRAM byte address of log data */ u32 ev, time, data; /* event log data */ unsigned long reg_flags; if (mode == 0) ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); else ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); /* Make sure device is powered up for SRAM reads */ if (!iwl_trans_grab_nic_access(priv->trans, ®_flags)) return; /* Set starting address; reads will auto-increment */ iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, ptr); /* * Refuse to read more than would have fit into the log from * the current start_idx. This used to happen due to the race * described below, but now WARN because the code below should * prevent it from happening here. */ if (WARN_ON(num_events > capacity - start_idx)) num_events = capacity - start_idx; /* * "time" is actually "data" for mode 0 (no timestamp). * place event id # at far right for easier visual parsing. */ for (i = 0; i < num_events; i++) { ev = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); time = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); if (mode == 0) { trace_iwlwifi_dev_ucode_cont_event( priv->trans->dev, 0, time, ev); } else { data = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); trace_iwlwifi_dev_ucode_cont_event( priv->trans->dev, time, data, ev); } } /* Allow device to power down */ iwl_trans_release_nic_access(priv->trans, ®_flags); } static void iwl_continuous_event_trace(struct iwl_priv *priv) { u32 capacity; /* event log capacity in # entries */ struct { u32 capacity; u32 mode; u32 wrap_counter; u32 write_counter; } __packed read; u32 base; /* SRAM byte address of event log header */ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ u32 num_wraps; /* # times uCode wrapped to top of log */ u32 next_entry; /* index of next entry to be written by uCode */ base = priv->device_pointers.log_event_table; if (iwlagn_hw_valid_rtc_data_addr(base)) { iwl_trans_read_mem_bytes(priv->trans, base, &read, sizeof(read)); capacity = read.capacity; mode = read.mode; num_wraps = read.wrap_counter; next_entry = read.write_counter; } else return; /* * Unfortunately, the uCode doesn't use temporary variables. * Therefore, it can happen that we read next_entry == capacity, * which really means next_entry == 0. */ if (unlikely(next_entry == capacity)) next_entry = 0; /* * Additionally, the uCode increases the write pointer before * the wraps counter, so if the write pointer is smaller than * the old write pointer (wrap occurred) but we read that no * wrap occurred, we actually read between the next_entry and * num_wraps update (this does happen in practice!!) -- take * that into account by increasing num_wraps. */ if (unlikely(next_entry < priv->event_log.next_entry && num_wraps == priv->event_log.num_wraps)) num_wraps++; if (num_wraps == priv->event_log.num_wraps) { iwl_print_cont_event_trace( priv, base, priv->event_log.next_entry, next_entry - priv->event_log.next_entry, capacity, mode); priv->event_log.non_wraps_count++; } else { if (num_wraps - priv->event_log.num_wraps > 1) priv->event_log.wraps_more_count++; else priv->event_log.wraps_once_count++; trace_iwlwifi_dev_ucode_wrap_event(priv->trans->dev, num_wraps - priv->event_log.num_wraps, next_entry, priv->event_log.next_entry); if (next_entry < priv->event_log.next_entry) { iwl_print_cont_event_trace( priv, base, priv->event_log.next_entry, capacity - priv->event_log.next_entry, capacity, mode); iwl_print_cont_event_trace( priv, base, 0, next_entry, capacity, mode); } else { iwl_print_cont_event_trace( priv, base, next_entry, capacity - next_entry, capacity, mode); iwl_print_cont_event_trace( priv, base, 0, next_entry, capacity, mode); } } priv->event_log.num_wraps = num_wraps; priv->event_log.next_entry = next_entry; } /** * iwl_bg_ucode_trace - Timer callback to log ucode event * * The timer is continually set to execute every * UCODE_TRACE_PERIOD milliseconds after the last timer expired * this function is to perform continuous uCode event logging operation * if enabled */ static void iwl_bg_ucode_trace(struct timer_list *t) { struct iwl_priv *priv = from_timer(priv, t, ucode_trace); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; if (priv->event_log.ucode_trace) { iwl_continuous_event_trace(priv); /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ mod_timer(&priv->ucode_trace, jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); } } static void iwl_bg_tx_flush(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, tx_flush); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; /* do nothing if rf-kill is on */ if (!iwl_is_ready_rf(priv)) return; IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); iwlagn_dev_txfifo_flush(priv); } /* * queue/FIFO/AC mapping definitions */ static const u8 iwlagn_bss_ac_to_fifo[] = { IWL_TX_FIFO_VO, IWL_TX_FIFO_VI, IWL_TX_FIFO_BE, IWL_TX_FIFO_BK, }; static const u8 iwlagn_bss_ac_to_queue[] = { 0, 1, 2, 3, }; static const u8 iwlagn_pan_ac_to_fifo[] = { IWL_TX_FIFO_VO_IPAN, IWL_TX_FIFO_VI_IPAN, IWL_TX_FIFO_BE_IPAN, IWL_TX_FIFO_BK_IPAN, }; static const u8 iwlagn_pan_ac_to_queue[] = { 7, 6, 5, 4, }; static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) { int i; /* * The default context is always valid, * the PAN context depends on uCode. */ priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN); for (i = 0; i < NUM_IWL_RXON_CTX; i++) priv->contexts[i].ctxid = i; priv->contexts[IWL_RXON_CTX_BSS].always_active = true; priv->contexts[IWL_RXON_CTX_BSS].is_active = true; priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID; priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MONITOR); priv->contexts[IWL_RXON_CTX_BSS].interface_modes = BIT(NL80211_IFTYPE_STATION); priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue, iwlagn_bss_ac_to_queue, sizeof(iwlagn_bss_ac_to_queue)); memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo, iwlagn_bss_ac_to_fifo, sizeof(iwlagn_bss_ac_to_fifo)); priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = REPLY_WIPAN_RXON_TIMING; priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = REPLY_WIPAN_RXON_ASSOC; priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; priv->contexts[IWL_RXON_CTX_PAN].interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue, iwlagn_pan_ac_to_queue, sizeof(iwlagn_pan_ac_to_queue)); memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo, iwlagn_pan_ac_to_fifo, sizeof(iwlagn_pan_ac_to_fifo)); priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE; BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); } static void iwl_rf_kill_ct_config(struct iwl_priv *priv) { struct iwl_ct_kill_config cmd; struct iwl_ct_kill_throttling_config adv_cmd; int ret = 0; iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); priv->thermal_throttle.ct_kill_toggle = false; if (priv->lib->support_ct_kill_exit) { adv_cmd.critical_temperature_enter = cpu_to_le32(priv->hw_params.ct_kill_threshold); adv_cmd.critical_temperature_exit = cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, 0, sizeof(adv_cmd), &adv_cmd); if (ret) IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); else IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " "succeeded, critical temperature enter is %d," "exit is %d\n", priv->hw_params.ct_kill_threshold, priv->hw_params.ct_kill_exit_threshold); } else { cmd.critical_temperature_R = cpu_to_le32(priv->hw_params.ct_kill_threshold); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, 0, sizeof(cmd), &cmd); if (ret) IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); else IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " "succeeded, " "critical temperature is %d\n", priv->hw_params.ct_kill_threshold); } } static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) { 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_RT_CFG_ALL; calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); return iwl_dvm_send_cmd(priv, &cmd); } static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) { struct iwl_tx_ant_config_cmd tx_ant_cmd = { .valid = cpu_to_le32(valid_tx_ant), }; if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) { IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); return iwl_dvm_send_cmd_pdu(priv, TX_ANT_CONFIGURATION_CMD, 0, sizeof(struct iwl_tx_ant_config_cmd), &tx_ant_cmd); } else { IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); return -EOPNOTSUPP; } } static void iwl_send_bt_config(struct iwl_priv *priv) { struct iwl_bt_cmd bt_cmd = { .lead_time = BT_LEAD_TIME_DEF, .max_kill = BT_MAX_KILL_DEF, .kill_ack_mask = 0, .kill_cts_mask = 0, }; if (!iwlwifi_mod_params.bt_coex_active) bt_cmd.flags = BT_COEX_DISABLE; else bt_cmd.flags = BT_COEX_ENABLE; priv->bt_enable_flag = bt_cmd.flags; IWL_DEBUG_INFO(priv, "BT coex %s\n", (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); if (iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, 0, sizeof(struct iwl_bt_cmd), &bt_cmd)) IWL_ERR(priv, "failed to send BT Coex Config\n"); } /** * iwl_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's * Alive gets handled by iwl_init_alive_start()). */ int iwl_alive_start(struct iwl_priv *priv) { int ret = 0; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); /* After the ALIVE response, we can send host commands to the uCode */ set_bit(STATUS_ALIVE, &priv->status); if (iwl_is_rfkill(priv)) return -ERFKILL; if (priv->event_log.ucode_trace) { /* start collecting data now */ mod_timer(&priv->ucode_trace, jiffies); } /* download priority table before any calibration request */ if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist) { /* Configure Bluetooth device coexistence support */ if (priv->lib->bt_params->bt_sco_disable) priv->bt_enable_pspoll = false; else priv->bt_enable_pspoll = true; priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; iwlagn_send_advance_bt_config(priv); priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; priv->cur_rssi_ctx = NULL; iwl_send_prio_tbl(priv); /* FIXME: w/a to force change uCode BT state machine */ ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE, BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; } else if (priv->lib->bt_params) { /* * default is 2-wire BT coexexistence support */ iwl_send_bt_config(priv); } /* * Perform runtime calibrations, including DC calibration. */ iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX); ieee80211_wake_queues(priv->hw); /* Configure Tx antenna selection based on H/W config */ iwlagn_send_tx_ant_config(priv, priv->nvm_data->valid_tx_ant); if (iwl_is_associated_ctx(ctx) && !priv->wowlan) { struct iwl_rxon_cmd *active_rxon = (struct iwl_rxon_cmd *)&ctx->active; /* apply any changes in staging */ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; } else { struct iwl_rxon_context *tmp; /* Initialize our rx_config data */ for_each_context(priv, tmp) iwl_connection_init_rx_config(priv, tmp); iwlagn_set_rxon_chain(priv, ctx); } if (!priv->wowlan) { /* WoWLAN ucode will not reply in the same way, skip it */ iwl_reset_run_time_calib(priv); } set_bit(STATUS_READY, &priv->status); /* Configure the adapter for unassociated operation */ ret = iwlagn_commit_rxon(priv, ctx); if (ret) return ret; /* At this point, the NIC is initialized and operational */ iwl_rf_kill_ct_config(priv); IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); return iwl_power_update_mode(priv, true); } /** * iwl_clear_driver_stations - clear knowledge of all stations from driver * @priv: iwl priv struct * * This is called during iwl_down() to make sure that in the case * we're coming there from a hardware restart mac80211 will be * able to reconfigure stations -- if we're getting there in the * normal down flow then the stations will already be cleared. */ static void iwl_clear_driver_stations(struct iwl_priv *priv) { struct iwl_rxon_context *ctx; spin_lock_bh(&priv->sta_lock); memset(priv->stations, 0, sizeof(priv->stations)); priv->num_stations = 0; priv->ucode_key_table = 0; for_each_context(priv, ctx) { /* * Remove all key information that is not stored as part * of station information since mac80211 may not have had * a chance to remove all the keys. When device is * reconfigured by mac80211 after an error all keys will * be reconfigured. */ memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); ctx->key_mapping_keys = 0; } spin_unlock_bh(&priv->sta_lock); } void iwl_down(struct iwl_priv *priv) { int exit_pending; IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); lockdep_assert_held(&priv->mutex); iwl_scan_cancel_timeout(priv, 200); exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); iwl_clear_ucode_stations(priv, NULL); iwl_dealloc_bcast_stations(priv); iwl_clear_driver_stations(priv); /* reset BT coex data */ priv->bt_status = 0; priv->cur_rssi_ctx = NULL; priv->bt_is_sco = 0; if (priv->lib->bt_params) priv->bt_traffic_load = priv->lib->bt_params->bt_init_traffic_load; else priv->bt_traffic_load = 0; priv->bt_full_concurrent = false; priv->bt_ci_compliance = 0; /* Wipe out the EXIT_PENDING status bit if we are not actually * exiting the module */ if (!exit_pending) clear_bit(STATUS_EXIT_PENDING, &priv->status); if (priv->mac80211_registered) ieee80211_stop_queues(priv->hw); priv->ucode_loaded = false; iwl_trans_stop_device(priv->trans); /* Set num_aux_in_flight must be done after the transport is stopped */ atomic_set(&priv->num_aux_in_flight, 0); /* Clear out all status bits but a few that are stable across reset */ priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << STATUS_RF_KILL_HW | test_bit(STATUS_FW_ERROR, &priv->status) << STATUS_FW_ERROR | test_bit(STATUS_EXIT_PENDING, &priv->status) << STATUS_EXIT_PENDING; dev_kfree_skb(priv->beacon_skb); priv->beacon_skb = NULL; } /***************************************************************************** * * Workqueue callbacks * *****************************************************************************/ static void iwl_bg_run_time_calib_work(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, run_time_calib_work); mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status) || test_bit(STATUS_SCANNING, &priv->status)) { mutex_unlock(&priv->mutex); return; } if (priv->start_calib) { iwl_chain_noise_calibration(priv); iwl_sensitivity_calibration(priv); } mutex_unlock(&priv->mutex); } void iwlagn_prepare_restart(struct iwl_priv *priv) { bool bt_full_concurrent; u8 bt_ci_compliance; u8 bt_load; u8 bt_status; bool bt_is_sco; int i; lockdep_assert_held(&priv->mutex); priv->is_open = 0; /* * __iwl_down() will clear the BT status variables, * which is correct, but when we restart we really * want to keep them so restore them afterwards. * * The restart process will later pick them up and * re-configure the hw when we reconfigure the BT * command. */ bt_full_concurrent = priv->bt_full_concurrent; bt_ci_compliance = priv->bt_ci_compliance; bt_load = priv->bt_traffic_load; bt_status = priv->bt_status; bt_is_sco = priv->bt_is_sco; iwl_down(priv); priv->bt_full_concurrent = bt_full_concurrent; priv->bt_ci_compliance = bt_ci_compliance; priv->bt_traffic_load = bt_load; priv->bt_status = bt_status; priv->bt_is_sco = bt_is_sco; /* reset aggregation queues */ for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++) priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE; /* and stop counts */ for (i = 0; i < IWL_MAX_HW_QUEUES; i++) atomic_set(&priv->queue_stop_count[i], 0); memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc)); } static void iwl_bg_restart(struct work_struct *data) { struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { mutex_lock(&priv->mutex); iwlagn_prepare_restart(priv); mutex_unlock(&priv->mutex); iwl_cancel_deferred_work(priv); if (priv->mac80211_registered) ieee80211_restart_hw(priv->hw); else IWL_ERR(priv, "Cannot request restart before registrating with mac80211\n"); } else { WARN_ON(1); } } /***************************************************************************** * * driver setup and teardown * *****************************************************************************/ static void iwl_setup_deferred_work(struct iwl_priv *priv) { priv->workqueue = alloc_ordered_workqueue(DRV_NAME, 0); INIT_WORK(&priv->restart, iwl_bg_restart); INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); iwl_setup_scan_deferred_work(priv); if (priv->lib->bt_params) iwlagn_bt_setup_deferred_work(priv); timer_setup(&priv->statistics_periodic, iwl_bg_statistics_periodic, 0); timer_setup(&priv->ucode_trace, iwl_bg_ucode_trace, 0); } void iwl_cancel_deferred_work(struct iwl_priv *priv) { if (priv->lib->bt_params) iwlagn_bt_cancel_deferred_work(priv); cancel_work_sync(&priv->run_time_calib_work); cancel_work_sync(&priv->beacon_update); iwl_cancel_scan_deferred_work(priv); cancel_work_sync(&priv->bt_full_concurrency); cancel_work_sync(&priv->bt_runtime_config); del_timer_sync(&priv->statistics_periodic); del_timer_sync(&priv->ucode_trace); } static int iwl_init_drv(struct iwl_priv *priv) { spin_lock_init(&priv->sta_lock); mutex_init(&priv->mutex); INIT_LIST_HEAD(&priv->calib_results); priv->band = NL80211_BAND_2GHZ; priv->plcp_delta_threshold = priv->lib->plcp_delta_threshold; priv->iw_mode = NL80211_IFTYPE_STATION; priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; priv->agg_tids_count = 0; priv->rx_statistics_jiffies = jiffies; /* Choose which receivers/antennas to use */ iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); iwl_init_scan_params(priv); /* init bt coex */ if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist) { priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; priv->bt_duration = BT_DURATION_LIMIT_DEF; priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; } return 0; } static void iwl_uninit_drv(struct iwl_priv *priv) { kfree(priv->scan_cmd); kfree(priv->beacon_cmd); kfree(rcu_dereference_raw(priv->noa_data)); iwl_calib_free_results(priv); #ifdef CONFIG_IWLWIFI_DEBUGFS kfree(priv->wowlan_sram); #endif } static void iwl_set_hw_params(struct iwl_priv *priv) { if (priv->cfg->ht_params) priv->hw_params.use_rts_for_aggregation = priv->cfg->ht_params->use_rts_for_aggregation; /* Device-specific setup */ priv->lib->set_hw_params(priv); } /* show what optional capabilities we have */ static void iwl_option_config(struct iwl_priv *priv) { #ifdef CONFIG_IWLWIFI_DEBUG IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG enabled\n"); #else IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUG disabled\n"); #endif #ifdef CONFIG_IWLWIFI_DEBUGFS IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS enabled\n"); #else IWL_INFO(priv, "CONFIG_IWLWIFI_DEBUGFS disabled\n"); #endif #ifdef CONFIG_IWLWIFI_DEVICE_TRACING IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING enabled\n"); #else IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING disabled\n"); #endif } static int iwl_eeprom_init_hw_params(struct iwl_priv *priv) { struct iwl_nvm_data *data = priv->nvm_data; if (data->sku_cap_11n_enable && !priv->cfg->ht_params) { IWL_ERR(priv, "Invalid 11n configuration\n"); return -EINVAL; } if (!data->sku_cap_11n_enable && !data->sku_cap_band_24ghz_enable && !data->sku_cap_band_52ghz_enable) { IWL_ERR(priv, "Invalid device sku\n"); return -EINVAL; } IWL_DEBUG_INFO(priv, "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n", data->sku_cap_band_24ghz_enable ? "" : "NOT", "enabled", data->sku_cap_band_52ghz_enable ? "" : "NOT", "enabled", data->sku_cap_11n_enable ? "" : "NOT", "enabled"); priv->hw_params.tx_chains_num = num_of_ant(data->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) priv->hw_params.rx_chains_num = 1; else priv->hw_params.rx_chains_num = num_of_ant(data->valid_rx_ant); IWL_DEBUG_INFO(priv, "Valid Tx ant: 0x%X, Valid Rx ant: 0x%X\n", data->valid_tx_ant, data->valid_rx_ant); return 0; } static int iwl_nvm_check_version(struct iwl_nvm_data *data, struct iwl_trans *trans) { if (data->nvm_version >= trans->cfg->nvm_ver || data->calib_version >= trans->cfg->nvm_calib_ver) { IWL_DEBUG_INFO(trans, "device EEPROM VER=0x%x, CALIB=0x%x\n", data->nvm_version, data->calib_version); return 0; } IWL_ERR(trans, "Unsupported (too old) EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", data->nvm_version, trans->cfg->nvm_ver, data->calib_version, trans->cfg->nvm_calib_ver); return -EINVAL; } static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, const struct iwl_fw *fw, struct dentry *dbgfs_dir) { struct iwl_priv *priv; struct ieee80211_hw *hw; struct iwl_op_mode *op_mode; u16 num_mac; u32 ucode_flags; struct iwl_trans_config trans_cfg = {}; static const u8 no_reclaim_cmds[] = { REPLY_RX_PHY_CMD, REPLY_RX_MPDU_CMD, REPLY_COMPRESSED_BA, STATISTICS_NOTIFICATION, REPLY_TX, }; int i; /************************ * 1. Allocating HW data ************************/ hw = iwl_alloc_all(); if (!hw) { pr_err("%s: Cannot allocate network device\n", cfg->name); goto out; } op_mode = hw->priv; op_mode->ops = &iwl_dvm_ops; priv = IWL_OP_MODE_GET_DVM(op_mode); priv->trans = trans; priv->dev = trans->dev; priv->cfg = cfg; priv->fw = fw; switch (priv->cfg->device_family) { case IWL_DEVICE_FAMILY_1000: case IWL_DEVICE_FAMILY_100: priv->lib = &iwl_dvm_1000_cfg; break; case IWL_DEVICE_FAMILY_2000: priv->lib = &iwl_dvm_2000_cfg; break; case IWL_DEVICE_FAMILY_105: priv->lib = &iwl_dvm_105_cfg; break; case IWL_DEVICE_FAMILY_2030: case IWL_DEVICE_FAMILY_135: priv->lib = &iwl_dvm_2030_cfg; break; case IWL_DEVICE_FAMILY_5000: priv->lib = &iwl_dvm_5000_cfg; break; case IWL_DEVICE_FAMILY_5150: priv->lib = &iwl_dvm_5150_cfg; break; case IWL_DEVICE_FAMILY_6000: case IWL_DEVICE_FAMILY_6000i: priv->lib = &iwl_dvm_6000_cfg; break; case IWL_DEVICE_FAMILY_6005: priv->lib = &iwl_dvm_6005_cfg; break; case IWL_DEVICE_FAMILY_6050: case IWL_DEVICE_FAMILY_6150: priv->lib = &iwl_dvm_6050_cfg; break; case IWL_DEVICE_FAMILY_6030: priv->lib = &iwl_dvm_6030_cfg; break; default: break; } if (WARN_ON(!priv->lib)) goto out_free_hw; /* * Populate the state variables that the transport layer needs * to know about. */ trans_cfg.op_mode = op_mode; trans_cfg.no_reclaim_cmds = no_reclaim_cmds; trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); switch (iwlwifi_mod_params.amsdu_size) { case IWL_AMSDU_DEF: case IWL_AMSDU_4K: trans_cfg.rx_buf_size = IWL_AMSDU_4K; break; case IWL_AMSDU_8K: trans_cfg.rx_buf_size = IWL_AMSDU_8K; break; case IWL_AMSDU_12K: default: trans_cfg.rx_buf_size = IWL_AMSDU_4K; pr_err("Unsupported amsdu_size: %d\n", iwlwifi_mod_params.amsdu_size); } trans_cfg.cmd_q_wdg_timeout = IWL_WATCHDOG_DISABLED; trans_cfg.command_groups = iwl_dvm_groups; trans_cfg.command_groups_size = ARRAY_SIZE(iwl_dvm_groups); trans_cfg.cmd_fifo = IWLAGN_CMD_FIFO_NUM; trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, driver_data[2]); WARN_ON(sizeof(priv->transport_queue_stop) * BITS_PER_BYTE < priv->cfg->base_params->num_of_queues); ucode_flags = fw->ucode_capa.flags; if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) { priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; } else { priv->sta_key_max_num = STA_KEY_MAX_NUM; trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; } /* Configure transport layer */ iwl_trans_configure(priv->trans, &trans_cfg); trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start); trans->command_groups = trans_cfg.command_groups; trans->command_groups_size = trans_cfg.command_groups_size; /* At this point both hw and priv are allocated. */ SET_IEEE80211_DEV(priv->hw, priv->trans->dev); iwl_option_config(priv); IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); /* is antenna coupling more than 35dB ? */ priv->bt_ant_couple_ok = (iwlwifi_mod_params.antenna_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? true : false; /* bt channel inhibition enabled*/ priv->bt_ch_announce = true; IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", (priv->bt_ch_announce) ? "On" : "Off"); /* these spin locks will be used in apm_ops.init and EEPROM access * we should init now */ spin_lock_init(&priv->statistics.lock); /*********************** * 2. Read REV register ***********************/ IWL_INFO(priv, "Detected %s, REV=0x%X\n", priv->cfg->name, priv->trans->hw_rev); if (iwl_trans_start_hw(priv->trans)) goto out_free_hw; /* Read the EEPROM */ if (iwl_read_eeprom(priv->trans, &priv->eeprom_blob, &priv->eeprom_blob_size)) { IWL_ERR(priv, "Unable to init EEPROM\n"); goto out_free_hw; } /* Reset chip to save power until we load uCode during "up". */ iwl_trans_stop_device(priv->trans); priv->nvm_data = iwl_parse_eeprom_data(priv->trans->dev, priv->cfg, priv->eeprom_blob, priv->eeprom_blob_size); if (!priv->nvm_data) goto out_free_eeprom_blob; if (iwl_nvm_check_version(priv->nvm_data, priv->trans)) goto out_free_eeprom; if (iwl_eeprom_init_hw_params(priv)) goto out_free_eeprom; /* extract MAC Address */ memcpy(priv->addresses[0].addr, priv->nvm_data->hw_addr, ETH_ALEN); IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); priv->hw->wiphy->addresses = priv->addresses; priv->hw->wiphy->n_addresses = 1; num_mac = priv->nvm_data->n_hw_addrs; if (num_mac > 1) { memcpy(priv->addresses[1].addr, priv->addresses[0].addr, ETH_ALEN); priv->addresses[1].addr[5]++; priv->hw->wiphy->n_addresses++; } /************************ * 4. Setup HW constants ************************/ iwl_set_hw_params(priv); if (!(priv->nvm_data->sku_cap_ipan_enable)) { IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN\n"); ucode_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 */ priv->sta_key_max_num = STA_KEY_MAX_NUM; trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; /* Configure transport layer again*/ iwl_trans_configure(priv->trans, &trans_cfg); } /******************* * 5. Setup priv *******************/ for (i = 0; i < IWL_MAX_HW_QUEUES; i++) { priv->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE; if (i < IWLAGN_FIRST_AMPDU_QUEUE && i != IWL_DEFAULT_CMD_QUEUE_NUM && i != IWL_IPAN_CMD_QUEUE_NUM) priv->queue_to_mac80211[i] = i; atomic_set(&priv->queue_stop_count[i], 0); } if (iwl_init_drv(priv)) goto out_free_eeprom; /* At this point both hw and priv are initialized. */ /******************** * 6. Setup services ********************/ iwl_setup_deferred_work(priv); iwl_setup_rx_handlers(priv); iwl_power_initialize(priv); iwl_tt_initialize(priv); snprintf(priv->hw->wiphy->fw_version, sizeof(priv->hw->wiphy->fw_version), "%s", fw->fw_version); priv->new_scan_threshold_behaviour = !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); priv->phy_calib_chain_noise_reset_cmd = fw->ucode_capa.standard_phy_calibration_size; priv->phy_calib_chain_noise_gain_cmd = fw->ucode_capa.standard_phy_calibration_size + 1; /* initialize all valid contexts */ iwl_init_context(priv, ucode_flags); /************************************************** * This is still part of probe() in a sense... * * 7. Setup and register with mac80211 and debugfs **************************************************/ if (iwlagn_mac_setup_register(priv, &fw->ucode_capa)) goto out_destroy_workqueue; if (iwl_dbgfs_register(priv, dbgfs_dir)) goto out_mac80211_unregister; return op_mode; out_mac80211_unregister: iwlagn_mac_unregister(priv); out_destroy_workqueue: iwl_tt_exit(priv); iwl_cancel_deferred_work(priv); destroy_workqueue(priv->workqueue); priv->workqueue = NULL; iwl_uninit_drv(priv); out_free_eeprom_blob: kfree(priv->eeprom_blob); out_free_eeprom: kfree(priv->nvm_data); out_free_hw: ieee80211_free_hw(priv->hw); out: op_mode = NULL; return op_mode; } static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); iwlagn_mac_unregister(priv); iwl_tt_exit(priv); kfree(priv->eeprom_blob); kfree(priv->nvm_data); /*netif_stop_queue(dev); */ flush_workqueue(priv->workqueue); /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes * priv->workqueue... so we can't take down the workqueue * until now... */ destroy_workqueue(priv->workqueue); priv->workqueue = NULL; iwl_uninit_drv(priv); dev_kfree_skb(priv->beacon_skb); iwl_trans_op_mode_leave(priv->trans); ieee80211_free_hw(priv->hw); } static const char * const desc_lookup_text[] = { "OK", "FAIL", "BAD_PARAM", "BAD_CHECKSUM", "NMI_INTERRUPT_WDG", "SYSASSERT", "FATAL_ERROR", "BAD_COMMAND", "HW_ERROR_TUNE_LOCK", "HW_ERROR_TEMPERATURE", "ILLEGAL_CHAN_FREQ", "VCC_NOT_STABLE", "FH_ERROR", "NMI_INTERRUPT_HOST", "NMI_INTERRUPT_ACTION_PT", "NMI_INTERRUPT_UNKNOWN", "UCODE_VERSION_MISMATCH", "HW_ERROR_ABS_LOCK", "HW_ERROR_CAL_LOCK_FAIL", "NMI_INTERRUPT_INST_ACTION_PT", "NMI_INTERRUPT_DATA_ACTION_PT", "NMI_TRM_HW_ER", "NMI_INTERRUPT_TRM", "NMI_INTERRUPT_BREAK_POINT", "DEBUG_0", "DEBUG_1", "DEBUG_2", "DEBUG_3", }; static struct { char *name; u8 num; } advanced_lookup[] = { { "NMI_INTERRUPT_WDG", 0x34 }, { "SYSASSERT", 0x35 }, { "UCODE_VERSION_MISMATCH", 0x37 }, { "BAD_COMMAND", 0x38 }, { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, { "FATAL_ERROR", 0x3D }, { "NMI_TRM_HW_ERR", 0x46 }, { "NMI_INTERRUPT_TRM", 0x4C }, { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, { "NMI_INTERRUPT_HOST", 0x66 }, { "NMI_INTERRUPT_ACTION_PT", 0x7C }, { "NMI_INTERRUPT_UNKNOWN", 0x84 }, { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, { "ADVANCED_SYSASSERT", 0 }, }; static const char *desc_lookup(u32 num) { int i; int max = ARRAY_SIZE(desc_lookup_text); if (num < max) return desc_lookup_text[num]; max = ARRAY_SIZE(advanced_lookup) - 1; for (i = 0; i < max; i++) { if (advanced_lookup[i].num == num) break; } return advanced_lookup[i].name; } #define ERROR_START_OFFSET (1 * sizeof(u32)) #define ERROR_ELEM_SIZE (7 * sizeof(u32)) static void iwl_dump_nic_error_log(struct iwl_priv *priv) { struct iwl_trans *trans = priv->trans; u32 base; struct iwl_error_event_table table; base = priv->device_pointers.error_event_table; if (priv->cur_ucode == IWL_UCODE_INIT) { if (!base) base = priv->fw->init_errlog_ptr; } else { if (!base) base = priv->fw->inst_errlog_ptr; } if (!iwlagn_hw_valid_rtc_data_addr(base)) { IWL_ERR(priv, "Not valid error log pointer 0x%08X for %s uCode\n", base, (priv->cur_ucode == IWL_UCODE_INIT) ? "Init" : "RT"); return; } /*TODO: Update dbgfs with ISR error stats obtained below */ iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { IWL_ERR(trans, "Start IWL Error Log Dump:\n"); IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", priv->status, table.valid); } IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id, desc_lookup(table.error_id)); IWL_ERR(priv, "0x%08X | uPc\n", table.pc); IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1); IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2); IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1); IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2); IWL_ERR(priv, "0x%08X | data1\n", table.data1); IWL_ERR(priv, "0x%08X | data2\n", table.data2); IWL_ERR(priv, "0x%08X | line\n", table.line); IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time); IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low); IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi); IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1); IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2); IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3); IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver); IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver); IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver); IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd); IWL_ERR(priv, "0x%08X | isr0\n", table.isr0); IWL_ERR(priv, "0x%08X | isr1\n", table.isr1); IWL_ERR(priv, "0x%08X | isr2\n", table.isr2); IWL_ERR(priv, "0x%08X | isr3\n", table.isr3); IWL_ERR(priv, "0x%08X | isr4\n", table.isr4); IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref); IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event); IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control); IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration); IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp); IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler); } #define EVENT_START_OFFSET (4 * sizeof(u32)) /** * iwl_print_event_log - Dump error event log to syslog * */ static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, u32 num_events, u32 mode, int pos, char **buf, size_t bufsz) { u32 i; u32 base; /* SRAM byte address of event log header */ u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ u32 ptr; /* SRAM byte address of log data */ u32 ev, time, data; /* event log data */ unsigned long reg_flags; struct iwl_trans *trans = priv->trans; if (num_events == 0) return pos; base = priv->device_pointers.log_event_table; if (priv->cur_ucode == IWL_UCODE_INIT) { if (!base) base = priv->fw->init_evtlog_ptr; } else { if (!base) base = priv->fw->inst_evtlog_ptr; } if (mode == 0) event_size = 2 * sizeof(u32); else event_size = 3 * sizeof(u32); ptr = base + EVENT_START_OFFSET + (start_idx * event_size); /* Make sure device is powered up for SRAM reads */ if (!iwl_trans_grab_nic_access(trans, ®_flags)) return pos; /* Set starting address; reads will auto-increment */ iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr); /* "time" is actually "data" for mode 0 (no timestamp). * place event id # at far right for easier visual parsing. */ for (i = 0; i < num_events; i++) { ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT); time = iwl_read32(trans, HBUS_TARG_MEM_RDAT); if (mode == 0) { /* data, ev */ if (bufsz) { pos += scnprintf(*buf + pos, bufsz - pos, "EVT_LOG:0x%08x:%04u\n", time, ev); } else { trace_iwlwifi_dev_ucode_event(trans->dev, 0, time, ev); IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev); } } else { data = iwl_read32(trans, HBUS_TARG_MEM_RDAT); if (bufsz) { pos += scnprintf(*buf + pos, bufsz - pos, "EVT_LOGT:%010u:0x%08x:%04u\n", time, data, ev); } else { IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", time, data, ev); trace_iwlwifi_dev_ucode_event(trans->dev, time, data, ev); } } } /* Allow device to power down */ iwl_trans_release_nic_access(trans, ®_flags); return pos; } /** * iwl_print_last_event_logs - Dump the newest # of event log to syslog */ static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity, u32 num_wraps, u32 next_entry, u32 size, u32 mode, int pos, char **buf, size_t bufsz) { /* * display the newest DEFAULT_LOG_ENTRIES entries * i.e the entries just before the next ont that uCode would fill. */ if (num_wraps) { if (next_entry < size) { pos = iwl_print_event_log(priv, capacity - (size - next_entry), size - next_entry, mode, pos, buf, bufsz); pos = iwl_print_event_log(priv, 0, next_entry, mode, pos, buf, bufsz); } else pos = iwl_print_event_log(priv, next_entry - size, size, mode, pos, buf, bufsz); } else { if (next_entry < size) { pos = iwl_print_event_log(priv, 0, next_entry, mode, pos, buf, bufsz); } else { pos = iwl_print_event_log(priv, next_entry - size, size, mode, pos, buf, bufsz); } } return pos; } #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20) int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, char **buf) { u32 base; /* SRAM byte address of event log header */ u32 capacity; /* event log capacity in # entries */ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ u32 num_wraps; /* # times uCode wrapped to top of log */ u32 next_entry; /* index of next entry to be written by uCode */ u32 size; /* # entries that we'll print */ u32 logsize; int pos = 0; size_t bufsz = 0; struct iwl_trans *trans = priv->trans; base = priv->device_pointers.log_event_table; if (priv->cur_ucode == IWL_UCODE_INIT) { logsize = priv->fw->init_evtlog_size; if (!base) base = priv->fw->init_evtlog_ptr; } else { logsize = priv->fw->inst_evtlog_size; if (!base) base = priv->fw->inst_evtlog_ptr; } if (!iwlagn_hw_valid_rtc_data_addr(base)) { IWL_ERR(priv, "Invalid event log pointer 0x%08X for %s uCode\n", base, (priv->cur_ucode == IWL_UCODE_INIT) ? "Init" : "RT"); return -EINVAL; } /* event log header */ capacity = iwl_trans_read_mem32(trans, base); mode = iwl_trans_read_mem32(trans, base + (1 * sizeof(u32))); num_wraps = iwl_trans_read_mem32(trans, base + (2 * sizeof(u32))); next_entry = iwl_trans_read_mem32(trans, base + (3 * sizeof(u32))); if (capacity > logsize) { IWL_ERR(priv, "Log capacity %d is bogus, limit to %d " "entries\n", capacity, logsize); capacity = logsize; } if (next_entry > logsize) { IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", next_entry, logsize); next_entry = logsize; } size = num_wraps ? capacity : next_entry; /* bail out if nothing in log */ if (size == 0) { IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n"); return pos; } if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log) size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", size); #ifdef CONFIG_IWLWIFI_DEBUG if (buf) { if (full_log) bufsz = capacity * 48; else bufsz = size * 48; *buf = kmalloc(bufsz, GFP_KERNEL); if (!*buf) return -ENOMEM; } if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) { /* * if uCode has wrapped back to top of log, * start at the oldest entry, * i.e the next one that uCode would fill. */ if (num_wraps) pos = iwl_print_event_log(priv, next_entry, capacity - next_entry, mode, pos, buf, bufsz); /* (then/else) start at top of log */ pos = iwl_print_event_log(priv, 0, next_entry, mode, pos, buf, bufsz); } else pos = iwl_print_last_event_logs(priv, capacity, num_wraps, next_entry, size, mode, pos, buf, bufsz); #else pos = iwl_print_last_event_logs(priv, capacity, num_wraps, next_entry, size, mode, pos, buf, bufsz); #endif return pos; } static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand) { unsigned int reload_msec; unsigned long reload_jiffies; if (iwl_have_debug_level(IWL_DL_FW_ERRORS)) iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS); /* uCode is no longer loaded. */ priv->ucode_loaded = false; /* Set the FW error flag -- cleared on iwl_down */ set_bit(STATUS_FW_ERROR, &priv->status); iwl_abort_notification_waits(&priv->notif_wait); /* Keep the restart process from trying to send host * commands by clearing the ready bit */ clear_bit(STATUS_READY, &priv->status); if (!ondemand) { /* * If firmware keep reloading, then it indicate something * serious wrong and firmware having problem to recover * from it. Instead of keep trying which will fill the syslog * and hang the system, let's just stop it */ reload_jiffies = jiffies; reload_msec = jiffies_to_msecs((long) reload_jiffies - (long) priv->reload_jiffies); priv->reload_jiffies = reload_jiffies; if (reload_msec <= IWL_MIN_RELOAD_DURATION) { priv->reload_count++; if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) { IWL_ERR(priv, "BUG_ON, Stop restarting\n"); return; } } else priv->reload_count = 0; } if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { if (iwlwifi_mod_params.fw_restart) { IWL_DEBUG_FW_ERRORS(priv, "Restarting adapter due to uCode error.\n"); queue_work(priv->workqueue, &priv->restart); } else IWL_DEBUG_FW_ERRORS(priv, "Detected FW error, but not restarting\n"); } } static void iwl_nic_error(struct iwl_op_mode *op_mode) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); IWL_ERR(priv, "Loaded firmware version: %s\n", priv->fw->fw_version); iwl_dump_nic_error_log(priv); iwl_dump_nic_event_log(priv, false, NULL); iwlagn_fw_error(priv, false); } static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); if (!iwl_check_for_ct_kill(priv)) { IWL_ERR(priv, "Restarting adapter queue is full\n"); iwlagn_fw_error(priv, false); } } #define EEPROM_RF_CONFIG_TYPE_MAX 0x3 static void iwl_nic_config(struct iwl_op_mode *op_mode) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); /* SKU Control */ iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP, (CSR_HW_REV_STEP(priv->trans->hw_rev) << CSR_HW_IF_CONFIG_REG_POS_MAC_STEP) | (CSR_HW_REV_DASH(priv->trans->hw_rev) << CSR_HW_IF_CONFIG_REG_POS_MAC_DASH)); /* write radio config values to register */ if (priv->nvm_data->radio_cfg_type <= EEPROM_RF_CONFIG_TYPE_MAX) { u32 reg_val = priv->nvm_data->radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE | priv->nvm_data->radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP | priv->nvm_data->radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; iwl_trans_set_bits_mask(priv->trans, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH, reg_val); IWL_INFO(priv, "Radio type=0x%x-0x%x-0x%x\n", priv->nvm_data->radio_cfg_type, priv->nvm_data->radio_cfg_step, priv->nvm_data->radio_cfg_dash); } else { WARN_ON(1); } /* set CSR_HW_CONFIG_REG for uCode use */ iwl_set_bit(priv->trans, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | CSR_HW_IF_CONFIG_REG_BIT_MAC_SI); /* W/A : NIC is stuck in a reset state after Early PCIe power off * (PCIe power is lost before PERST# is asserted), * causing ME FW to lose ownership and not being able to obtain it back. */ iwl_set_bits_mask_prph(priv->trans, APMG_PS_CTRL_REG, APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); if (priv->lib->nic_config) priv->lib->nic_config(priv); } static void iwl_wimax_active(struct iwl_op_mode *op_mode) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); clear_bit(STATUS_READY, &priv->status); IWL_ERR(priv, "RF is used by WiMAX\n"); } static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); int mq = priv->queue_to_mac80211[queue]; if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE)) return; if (atomic_inc_return(&priv->queue_stop_count[mq]) > 1) { IWL_DEBUG_TX_QUEUES(priv, "queue %d (mac80211 %d) already stopped\n", queue, mq); return; } set_bit(mq, &priv->transport_queue_stop); ieee80211_stop_queue(priv->hw, mq); } static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); int mq = priv->queue_to_mac80211[queue]; if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE)) return; if (atomic_dec_return(&priv->queue_stop_count[mq]) > 0) { IWL_DEBUG_TX_QUEUES(priv, "queue %d (mac80211 %d) already awake\n", queue, mq); return; } clear_bit(mq, &priv->transport_queue_stop); if (!priv->passive_no_rx) ieee80211_wake_queue(priv->hw, mq); } void iwlagn_lift_passive_no_rx(struct iwl_priv *priv) { int mq; if (!priv->passive_no_rx) return; for (mq = 0; mq < IWLAGN_FIRST_AMPDU_QUEUE; mq++) { if (!test_bit(mq, &priv->transport_queue_stop)) { IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d\n", mq); ieee80211_wake_queue(priv->hw, mq); } else { IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d\n", mq); } } priv->passive_no_rx = false; } static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); struct ieee80211_tx_info *info; info = IEEE80211_SKB_CB(skb); iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]); ieee80211_free_txskb(priv->hw, skb); } static bool iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); if (state) set_bit(STATUS_RF_KILL_HW, &priv->status); else clear_bit(STATUS_RF_KILL_HW, &priv->status); wiphy_rfkill_set_hw_state(priv->hw->wiphy, state); return false; } static const struct iwl_op_mode_ops iwl_dvm_ops = { .start = iwl_op_mode_dvm_start, .stop = iwl_op_mode_dvm_stop, .rx = iwl_rx_dispatch, .queue_full = iwl_stop_sw_queue, .queue_not_full = iwl_wake_sw_queue, .hw_rf_kill = iwl_set_hw_rfkill_state, .free_skb = iwl_free_skb, .nic_error = iwl_nic_error, .cmd_queue_full = iwl_cmd_queue_full, .nic_config = iwl_nic_config, .wimax_active = iwl_wimax_active, }; /***************************************************************************** * * driver and module entry point * *****************************************************************************/ static int __init iwl_init(void) { int ret; ret = iwlagn_rate_control_register(); if (ret) { pr_err("Unable to register rate control algorithm: %d\n", ret); return ret; } ret = iwl_opmode_register("iwldvm", &iwl_dvm_ops); if (ret) { pr_err("Unable to register op_mode: %d\n", ret); iwlagn_rate_control_unregister(); } return ret; } module_init(iwl_init); static void __exit iwl_exit(void) { iwl_opmode_deregister("iwldvm"); iwlagn_rate_control_unregister(); } module_exit(iwl_exit);
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