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2168 lines
60 KiB
2168 lines
60 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/****************************************************************************** |
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* |
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* Copyright(c) 2003 - 2014, 2018 - 2020 Intel Corporation. All rights reserved. |
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* Copyright(c) 2015 Intel Deutschland GmbH |
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* |
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* Portions of this file are derived from the ipw3945 project, as well |
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* as portions of the ieee80211 subsystem header files. |
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* |
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* Contact Information: |
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* Intel Linux Wireless <[email protected]> |
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
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* |
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*****************************************************************************/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/delay.h> |
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#include <linux/sched.h> |
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#include <linux/skbuff.h> |
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#include <linux/netdevice.h> |
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#include <linux/etherdevice.h> |
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#include <linux/if_arp.h> |
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#include <net/mac80211.h> |
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#include <asm/div64.h> |
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#include "iwl-eeprom-read.h" |
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#include "iwl-eeprom-parse.h" |
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#include "iwl-io.h" |
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#include "iwl-trans.h" |
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#include "iwl-op-mode.h" |
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#include "iwl-drv.h" |
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#include "iwl-modparams.h" |
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#include "iwl-prph.h" |
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#include "dev.h" |
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#include "calib.h" |
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#include "agn.h" |
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/****************************************************************************** |
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* |
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* module boiler plate |
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* |
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******************************************************************************/ |
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#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
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MODULE_DESCRIPTION(DRV_DESCRIPTION); |
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MODULE_AUTHOR(DRV_AUTHOR); |
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MODULE_LICENSE("GPL"); |
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/* Please keep this array *SORTED* by hex value. |
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* Access is done through binary search. |
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* A warning will be triggered on violation. |
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*/ |
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static const struct iwl_hcmd_names iwl_dvm_cmd_names[] = { |
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HCMD_NAME(REPLY_ALIVE), |
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HCMD_NAME(REPLY_ERROR), |
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HCMD_NAME(REPLY_ECHO), |
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HCMD_NAME(REPLY_RXON), |
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HCMD_NAME(REPLY_RXON_ASSOC), |
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HCMD_NAME(REPLY_QOS_PARAM), |
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HCMD_NAME(REPLY_RXON_TIMING), |
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HCMD_NAME(REPLY_ADD_STA), |
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HCMD_NAME(REPLY_REMOVE_STA), |
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HCMD_NAME(REPLY_REMOVE_ALL_STA), |
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HCMD_NAME(REPLY_TX), |
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HCMD_NAME(REPLY_TXFIFO_FLUSH), |
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HCMD_NAME(REPLY_WEPKEY), |
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HCMD_NAME(REPLY_LEDS_CMD), |
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HCMD_NAME(REPLY_TX_LINK_QUALITY_CMD), |
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HCMD_NAME(COEX_PRIORITY_TABLE_CMD), |
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HCMD_NAME(COEX_MEDIUM_NOTIFICATION), |
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HCMD_NAME(COEX_EVENT_CMD), |
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HCMD_NAME(TEMPERATURE_NOTIFICATION), |
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HCMD_NAME(CALIBRATION_CFG_CMD), |
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HCMD_NAME(CALIBRATION_RES_NOTIFICATION), |
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HCMD_NAME(CALIBRATION_COMPLETE_NOTIFICATION), |
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HCMD_NAME(REPLY_QUIET_CMD), |
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HCMD_NAME(REPLY_CHANNEL_SWITCH), |
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HCMD_NAME(CHANNEL_SWITCH_NOTIFICATION), |
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HCMD_NAME(REPLY_SPECTRUM_MEASUREMENT_CMD), |
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HCMD_NAME(SPECTRUM_MEASURE_NOTIFICATION), |
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HCMD_NAME(POWER_TABLE_CMD), |
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HCMD_NAME(PM_SLEEP_NOTIFICATION), |
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HCMD_NAME(PM_DEBUG_STATISTIC_NOTIFIC), |
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HCMD_NAME(REPLY_SCAN_CMD), |
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HCMD_NAME(REPLY_SCAN_ABORT_CMD), |
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HCMD_NAME(SCAN_START_NOTIFICATION), |
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HCMD_NAME(SCAN_RESULTS_NOTIFICATION), |
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HCMD_NAME(SCAN_COMPLETE_NOTIFICATION), |
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HCMD_NAME(BEACON_NOTIFICATION), |
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HCMD_NAME(REPLY_TX_BEACON), |
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HCMD_NAME(WHO_IS_AWAKE_NOTIFICATION), |
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HCMD_NAME(REPLY_TX_POWER_DBM_CMD), |
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HCMD_NAME(QUIET_NOTIFICATION), |
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HCMD_NAME(REPLY_TX_PWR_TABLE_CMD), |
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HCMD_NAME(REPLY_TX_POWER_DBM_CMD_V1), |
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HCMD_NAME(TX_ANT_CONFIGURATION_CMD), |
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HCMD_NAME(MEASURE_ABORT_NOTIFICATION), |
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HCMD_NAME(REPLY_BT_CONFIG), |
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HCMD_NAME(REPLY_STATISTICS_CMD), |
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HCMD_NAME(STATISTICS_NOTIFICATION), |
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HCMD_NAME(REPLY_CARD_STATE_CMD), |
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HCMD_NAME(CARD_STATE_NOTIFICATION), |
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HCMD_NAME(MISSED_BEACONS_NOTIFICATION), |
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HCMD_NAME(REPLY_CT_KILL_CONFIG_CMD), |
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HCMD_NAME(SENSITIVITY_CMD), |
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HCMD_NAME(REPLY_PHY_CALIBRATION_CMD), |
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HCMD_NAME(REPLY_WIPAN_PARAMS), |
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HCMD_NAME(REPLY_WIPAN_RXON), |
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HCMD_NAME(REPLY_WIPAN_RXON_TIMING), |
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HCMD_NAME(REPLY_WIPAN_RXON_ASSOC), |
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HCMD_NAME(REPLY_WIPAN_QOS_PARAM), |
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HCMD_NAME(REPLY_WIPAN_WEPKEY), |
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HCMD_NAME(REPLY_WIPAN_P2P_CHANNEL_SWITCH), |
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HCMD_NAME(REPLY_WIPAN_NOA_NOTIFICATION), |
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HCMD_NAME(REPLY_WIPAN_DEACTIVATION_COMPLETE), |
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HCMD_NAME(REPLY_RX_PHY_CMD), |
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HCMD_NAME(REPLY_RX_MPDU_CMD), |
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HCMD_NAME(REPLY_RX), |
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HCMD_NAME(REPLY_COMPRESSED_BA), |
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HCMD_NAME(REPLY_BT_COEX_PRIO_TABLE), |
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HCMD_NAME(REPLY_BT_COEX_PROT_ENV), |
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HCMD_NAME(REPLY_BT_COEX_PROFILE_NOTIF), |
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HCMD_NAME(REPLY_D3_CONFIG), |
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HCMD_NAME(REPLY_WOWLAN_PATTERNS), |
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HCMD_NAME(REPLY_WOWLAN_WAKEUP_FILTER), |
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HCMD_NAME(REPLY_WOWLAN_TSC_RSC_PARAMS), |
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HCMD_NAME(REPLY_WOWLAN_TKIP_PARAMS), |
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HCMD_NAME(REPLY_WOWLAN_KEK_KCK_MATERIAL), |
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HCMD_NAME(REPLY_WOWLAN_GET_STATUS), |
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}; |
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|
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static const struct iwl_hcmd_arr iwl_dvm_groups[] = { |
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[0x0] = HCMD_ARR(iwl_dvm_cmd_names), |
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}; |
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static const struct iwl_op_mode_ops iwl_dvm_ops; |
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void iwl_update_chain_flags(struct iwl_priv *priv) |
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{ |
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struct iwl_rxon_context *ctx; |
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for_each_context(priv, ctx) { |
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iwlagn_set_rxon_chain(priv, ctx); |
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if (ctx->active.rx_chain != ctx->staging.rx_chain) |
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iwlagn_commit_rxon(priv, ctx); |
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} |
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} |
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/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
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static void iwl_set_beacon_tim(struct iwl_priv *priv, |
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struct iwl_tx_beacon_cmd *tx_beacon_cmd, |
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u8 *beacon, u32 frame_size) |
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{ |
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u16 tim_idx; |
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struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; |
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|
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/* |
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* The index is relative to frame start but we start looking at the |
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* variable-length part of the beacon. |
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*/ |
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tim_idx = mgmt->u.beacon.variable - beacon; |
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|
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/* Parse variable-length elements of beacon to find WLAN_EID_TIM */ |
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while ((tim_idx < (frame_size - 2)) && |
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(beacon[tim_idx] != WLAN_EID_TIM)) |
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tim_idx += beacon[tim_idx+1] + 2; |
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|
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/* If TIM field was found, set variables */ |
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if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { |
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tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); |
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tx_beacon_cmd->tim_size = beacon[tim_idx+1]; |
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} else |
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IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); |
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} |
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int iwlagn_send_beacon_cmd(struct iwl_priv *priv) |
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{ |
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struct iwl_tx_beacon_cmd *tx_beacon_cmd; |
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struct iwl_host_cmd cmd = { |
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.id = REPLY_TX_BEACON, |
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}; |
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struct ieee80211_tx_info *info; |
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u32 frame_size; |
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u32 rate_flags; |
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u32 rate; |
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|
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/* |
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* We have to set up the TX command, the TX Beacon command, and the |
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* beacon contents. |
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*/ |
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|
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lockdep_assert_held(&priv->mutex); |
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|
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if (!priv->beacon_ctx) { |
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IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); |
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return 0; |
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} |
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if (WARN_ON(!priv->beacon_skb)) |
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return -EINVAL; |
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/* Allocate beacon command */ |
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if (!priv->beacon_cmd) |
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priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); |
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tx_beacon_cmd = priv->beacon_cmd; |
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if (!tx_beacon_cmd) |
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return -ENOMEM; |
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frame_size = priv->beacon_skb->len; |
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|
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/* Set up TX command fields */ |
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tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
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tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; |
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tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
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tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | |
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TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; |
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/* Set up TX beacon command fields */ |
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iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, |
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frame_size); |
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|
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/* Set up packet rate and flags */ |
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info = IEEE80211_SKB_CB(priv->beacon_skb); |
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|
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/* |
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* Let's set up the rate at least somewhat correctly; |
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* it will currently not actually be used by the uCode, |
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* it uses the broadcast station's rate instead. |
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*/ |
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if (info->control.rates[0].idx < 0 || |
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info->control.rates[0].flags & IEEE80211_TX_RC_MCS) |
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rate = 0; |
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else |
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rate = info->control.rates[0].idx; |
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priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, |
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priv->nvm_data->valid_tx_ant); |
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rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); |
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|
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/* In mac80211, rates for 5 GHz start at 0 */ |
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if (info->band == NL80211_BAND_5GHZ) |
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rate += IWL_FIRST_OFDM_RATE; |
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else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) |
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rate_flags |= RATE_MCS_CCK_MSK; |
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tx_beacon_cmd->tx.rate_n_flags = |
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iwl_hw_set_rate_n_flags(rate, rate_flags); |
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/* Submit command */ |
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cmd.len[0] = sizeof(*tx_beacon_cmd); |
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cmd.data[0] = tx_beacon_cmd; |
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cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
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cmd.len[1] = frame_size; |
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cmd.data[1] = priv->beacon_skb->data; |
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cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; |
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return iwl_dvm_send_cmd(priv, &cmd); |
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} |
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static void iwl_bg_beacon_update(struct work_struct *work) |
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{ |
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struct iwl_priv *priv = |
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container_of(work, struct iwl_priv, beacon_update); |
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struct sk_buff *beacon; |
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mutex_lock(&priv->mutex); |
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if (!priv->beacon_ctx) { |
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IWL_ERR(priv, "updating beacon w/o beacon context!\n"); |
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goto out; |
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} |
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if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { |
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/* |
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* The ucode will send beacon notifications even in |
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* IBSS mode, but we don't want to process them. But |
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* we need to defer the type check to here due to |
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* requiring locking around the beacon_ctx access. |
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*/ |
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goto out; |
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} |
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|
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/* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
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beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); |
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if (!beacon) { |
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IWL_ERR(priv, "update beacon failed -- keeping old\n"); |
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goto out; |
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} |
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|
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/* new beacon skb is allocated every time; dispose previous.*/ |
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dev_kfree_skb(priv->beacon_skb); |
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priv->beacon_skb = beacon; |
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iwlagn_send_beacon_cmd(priv); |
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out: |
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mutex_unlock(&priv->mutex); |
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} |
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static void iwl_bg_bt_runtime_config(struct work_struct *work) |
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{ |
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struct iwl_priv *priv = |
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container_of(work, struct iwl_priv, bt_runtime_config); |
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|
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mutex_lock(&priv->mutex); |
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if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
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goto out; |
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|
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/* dont send host command if rf-kill is on */ |
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if (!iwl_is_ready_rf(priv)) |
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goto out; |
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iwlagn_send_advance_bt_config(priv); |
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out: |
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mutex_unlock(&priv->mutex); |
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} |
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static void iwl_bg_bt_full_concurrency(struct work_struct *work) |
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{ |
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struct iwl_priv *priv = |
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container_of(work, struct iwl_priv, bt_full_concurrency); |
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struct iwl_rxon_context *ctx; |
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|
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mutex_lock(&priv->mutex); |
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if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
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goto out; |
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|
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/* dont send host command if rf-kill is on */ |
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if (!iwl_is_ready_rf(priv)) |
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goto out; |
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IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", |
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priv->bt_full_concurrent ? |
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"full concurrency" : "3-wire"); |
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|
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/* |
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* LQ & RXON updated cmds must be sent before BT Config cmd |
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* to avoid 3-wire collisions |
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*/ |
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for_each_context(priv, ctx) { |
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iwlagn_set_rxon_chain(priv, ctx); |
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iwlagn_commit_rxon(priv, ctx); |
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} |
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|
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iwlagn_send_advance_bt_config(priv); |
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out: |
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mutex_unlock(&priv->mutex); |
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} |
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int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) |
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{ |
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struct iwl_statistics_cmd statistics_cmd = { |
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.configuration_flags = |
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clear ? IWL_STATS_CONF_CLEAR_STATS : 0, |
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}; |
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if (flags & CMD_ASYNC) |
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return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, |
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CMD_ASYNC, |
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sizeof(struct iwl_statistics_cmd), |
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&statistics_cmd); |
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else |
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return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, 0, |
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sizeof(struct iwl_statistics_cmd), |
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&statistics_cmd); |
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} |
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|
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/* |
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* iwl_bg_statistics_periodic - Timer callback to queue statistics |
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* |
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* This callback is provided in order to send a statistics request. |
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* |
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* This timer function is continually reset to execute within |
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* REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION |
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* was received. We need to ensure we receive the statistics in order |
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* to update the temperature used for calibrating the TXPOWER. |
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*/ |
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static void iwl_bg_statistics_periodic(struct timer_list *t) |
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{ |
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struct iwl_priv *priv = from_timer(priv, t, statistics_periodic); |
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|
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if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
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return; |
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|
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/* dont send host command if rf-kill is on */ |
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if (!iwl_is_ready_rf(priv)) |
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return; |
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|
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iwl_send_statistics_request(priv, CMD_ASYNC, false); |
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} |
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|
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static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, |
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u32 start_idx, u32 num_events, |
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u32 capacity, u32 mode) |
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{ |
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u32 i; |
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u32 ptr; /* SRAM byte address of log data */ |
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u32 ev, time, data; /* event log data */ |
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|
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if (mode == 0) |
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ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); |
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else |
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ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); |
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|
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/* Make sure device is powered up for SRAM reads */ |
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if (!iwl_trans_grab_nic_access(priv->trans)) |
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return; |
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|
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/* Set starting address; reads will auto-increment */ |
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iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, ptr); |
|
|
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/* |
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* Refuse to read more than would have fit into the log from |
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* the current start_idx. This used to happen due to the race |
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* described below, but now WARN because the code below should |
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* prevent it from happening here. |
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*/ |
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if (WARN_ON(num_events > capacity - start_idx)) |
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num_events = capacity - start_idx; |
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|
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/* |
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* "time" is actually "data" for mode 0 (no timestamp). |
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* place event id # at far right for easier visual parsing. |
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*/ |
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for (i = 0; i < num_events; i++) { |
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ev = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); |
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time = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); |
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if (mode == 0) { |
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trace_iwlwifi_dev_ucode_cont_event( |
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priv->trans->dev, 0, time, ev); |
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} else { |
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data = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); |
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trace_iwlwifi_dev_ucode_cont_event( |
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priv->trans->dev, time, data, ev); |
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} |
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} |
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/* Allow device to power down */ |
|
iwl_trans_release_nic_access(priv->trans); |
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} |
|
|
|
static void iwl_continuous_event_trace(struct iwl_priv *priv) |
|
{ |
|
u32 capacity; /* event log capacity in # entries */ |
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struct { |
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u32 capacity; |
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u32 mode; |
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u32 wrap_counter; |
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u32 write_counter; |
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} __packed read; |
|
u32 base; /* SRAM byte address of event log header */ |
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u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ |
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u32 num_wraps; /* # times uCode wrapped to top of log */ |
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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; |
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num_wraps = read.wrap_counter; |
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next_entry = read.write_counter; |
|
} else |
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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 registering 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", trans->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->trans->trans_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->trans->trans_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"); |
|
|
|
/* 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->trans->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, 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; |
|
|
|
iwl_dbgfs_register(priv, dbgfs_dir); |
|
|
|
return op_mode; |
|
|
|
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 */ |
|
|
|
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)) |
|
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); |
|
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)) && !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) || 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)) |
|
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(priv, |
|
"Restarting adapter due to uCode error.\n"); |
|
queue_work(priv->workqueue, &priv->restart); |
|
} else |
|
IWL_DEBUG_FW(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);
|
|
|