mirror of https://gitee.com/openkylin/linux.git
650 lines
20 KiB
C
650 lines
20 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#ifndef __iwl_shared_h__
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#define __iwl_shared_h__
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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#include <linux/gfp.h>
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#include <linux/mm.h> /* for page_address */
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#include <net/mac80211.h>
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#include "iwl-commands.h"
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/**
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* DOC: shared area - role and goal
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*
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* The shared area contains all the data exported by the upper layer to the
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* other layers. Since the bus and transport layer shouldn't dereference
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* iwl_priv, all the data needed by the upper layer and the transport / bus
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* layer must be here.
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* The shared area also holds pointer to all the other layers. This allows a
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* layer to call a function from another layer.
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*
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* NOTE: All the layers hold a pointer to the shared area which must be shrd.
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* A few macros assume that (_m)->shrd points to the shared area no matter
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* what _m is.
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*
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* gets notifications about enumeration, suspend, resume.
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* For the moment, the bus layer is not a linux kernel module as itself, and
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* the module_init function of the driver must call the bus specific
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* registration functions. These functions are listed at the end of this file.
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* For the moment, there is only one implementation of this interface: PCI-e.
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* This implementation is iwl-pci.c
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*/
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struct iwl_bus;
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struct iwl_priv;
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struct iwl_trans;
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struct iwl_sensitivity_ranges;
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struct iwl_trans_ops;
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#define DRV_NAME "iwlwifi"
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#define IWLWIFI_VERSION "in-tree:"
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#define DRV_COPYRIGHT "Copyright(c) 2003-2012 Intel Corporation"
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#define DRV_AUTHOR "<ilw@linux.intel.com>"
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extern struct iwl_mod_params iwlagn_mod_params;
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#define IWL_DISABLE_HT_ALL BIT(0)
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#define IWL_DISABLE_HT_TXAGG BIT(1)
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#define IWL_DISABLE_HT_RXAGG BIT(2)
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/**
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* struct iwl_mod_params
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*
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* Holds the module parameters
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*
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* @sw_crypto: using hardware encryption, default = 0
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* @num_of_queues: number of tx queue, HW dependent
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* @disable_11n: disable 11n capabilities, default = 0,
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* use IWL_DISABLE_HT_* constants
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* @amsdu_size_8K: enable 8K amsdu size, default = 1
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* @antenna: both antennas (use diversity), default = 0
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* @restart_fw: restart firmware, default = 1
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* @plcp_check: enable plcp health check, default = true
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* @ack_check: disable ack health check, default = false
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* @wd_disable: enable stuck queue check, default = 0
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* @bt_coex_active: enable bt coex, default = true
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* @led_mode: system default, default = 0
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* @no_sleep_autoadjust: disable autoadjust, default = true
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* @power_save: disable power save, default = false
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* @power_level: power level, default = 1
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* @debug_level: levels are IWL_DL_*
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* @ant_coupling: antenna coupling in dB, default = 0
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* @bt_ch_announce: BT channel inhibition, default = enable
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* @wanted_ucode_alternative: ucode alternative to use, default = 1
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* @auto_agg: enable agg. without check, default = true
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*/
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struct iwl_mod_params {
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int sw_crypto;
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int num_of_queues;
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unsigned int disable_11n;
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int amsdu_size_8K;
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int antenna;
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int restart_fw;
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bool plcp_check;
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bool ack_check;
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int wd_disable;
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bool bt_coex_active;
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int led_mode;
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bool no_sleep_autoadjust;
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bool power_save;
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int power_level;
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u32 debug_level;
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int ant_coupling;
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bool bt_ch_announce;
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int wanted_ucode_alternative;
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bool auto_agg;
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};
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/**
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* struct iwl_hw_params
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*
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* Holds the module parameters
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*
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* @max_txq_num: Max # Tx queues supported
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* @num_ampdu_queues: num of ampdu queues
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* @tx_chains_num: Number of TX chains
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* @rx_chains_num: Number of RX chains
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* @valid_tx_ant: usable antennas for TX
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* @valid_rx_ant: usable antennas for RX
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* @ht40_channel: is 40MHz width possible: BIT(IEEE80211_BAND_XXX)
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* @sku: sku read from EEPROM
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* @rx_page_order: Rx buffer page order
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* @ct_kill_threshold: temperature threshold - in hw dependent unit
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* @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
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* relevant for 1000, 6000 and up
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* @wd_timeout: TX queues watchdog timeout
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* @struct iwl_sensitivity_ranges: range of sensitivity values
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*/
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struct iwl_hw_params {
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u8 max_txq_num;
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u8 num_ampdu_queues;
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u8 tx_chains_num;
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u8 rx_chains_num;
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u8 valid_tx_ant;
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u8 valid_rx_ant;
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u8 ht40_channel;
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bool shadow_reg_enable;
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u16 sku;
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u32 rx_page_order;
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u32 ct_kill_threshold;
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u32 ct_kill_exit_threshold;
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unsigned int wd_timeout;
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const struct iwl_sensitivity_ranges *sens;
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};
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/**
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* enum iwl_ucode_type
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*
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* The type of ucode currently loaded on the hardware.
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*
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* @IWL_UCODE_NONE: No ucode loaded
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* @IWL_UCODE_REGULAR: Normal runtime ucode
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* @IWL_UCODE_INIT: Initial ucode
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* @IWL_UCODE_WOWLAN: Wake on Wireless enabled ucode
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*/
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enum iwl_ucode_type {
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IWL_UCODE_NONE,
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IWL_UCODE_REGULAR,
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IWL_UCODE_INIT,
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IWL_UCODE_WOWLAN,
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};
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/**
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* struct iwl_notification_wait - notification wait entry
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* @list: list head for global list
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* @fn: function called with the notification
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* @cmd: command ID
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*
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* This structure is not used directly, to wait for a
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* notification declare it on the stack, and call
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* iwlagn_init_notification_wait() with appropriate
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* parameters. Then do whatever will cause the ucode
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* to notify the driver, and to wait for that then
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* call iwlagn_wait_notification().
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*
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* Each notification is one-shot. If at some point we
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* need to support multi-shot notifications (which
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* can't be allocated on the stack) we need to modify
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* the code for them.
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*/
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struct iwl_notification_wait {
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struct list_head list;
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void (*fn)(struct iwl_trans *trans, struct iwl_rx_packet *pkt,
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void *data);
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void *fn_data;
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u8 cmd;
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bool triggered, aborted;
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};
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/**
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* enum iwl_pa_type - Power Amplifier type
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* @IWL_PA_SYSTEM: based on uCode configuration
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* @IWL_PA_INTERNAL: use Internal only
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*/
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enum iwl_pa_type {
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IWL_PA_SYSTEM = 0,
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IWL_PA_INTERNAL = 1,
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};
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/*
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* LED mode
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* IWL_LED_DEFAULT: use device default
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* IWL_LED_RF_STATE: turn LED on/off based on RF state
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* LED ON = RF ON
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* LED OFF = RF OFF
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* IWL_LED_BLINK: adjust led blink rate based on blink table
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* IWL_LED_DISABLE: led disabled
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*/
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enum iwl_led_mode {
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IWL_LED_DEFAULT,
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IWL_LED_RF_STATE,
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IWL_LED_BLINK,
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IWL_LED_DISABLE,
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};
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/**
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* struct iwl_cfg
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* @name: Offical name of the device
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* @fw_name_pre: Firmware filename prefix. The api version and extension
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* (.ucode) will be added to filename before loading from disk. The
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* filename is constructed as fw_name_pre<api>.ucode.
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* @ucode_api_max: Highest version of uCode API supported by driver.
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* @ucode_api_ok: oldest version of the uCode API that is OK to load
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* without a warning, for use in transitions
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* @ucode_api_min: Lowest version of uCode API supported by driver.
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* @max_inst_size: The maximal length of the fw inst section
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* @max_data_size: The maximal length of the fw data section
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* @valid_tx_ant: valid transmit antenna
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* @valid_rx_ant: valid receive antenna
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* @sku: sku information from EEPROM
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* @eeprom_ver: EEPROM version
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* @eeprom_calib_ver: EEPROM calibration version
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* @lib: pointer to the lib ops
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* @additional_nic_config: additional nic configuration
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* @base_params: pointer to basic parameters
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* @ht_params: point to ht patameters
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* @bt_params: pointer to bt parameters
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* @pa_type: used by 6000 series only to identify the type of Power Amplifier
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* @need_temp_offset_calib: need to perform temperature offset calibration
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* @no_xtal_calib: some devices do not need crystal calibration data,
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* don't send it to those
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* @scan_rx_antennas: available antenna for scan operation
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* @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
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* @adv_pm: advance power management
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* @rx_with_siso_diversity: 1x1 device with rx antenna diversity
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* @internal_wimax_coex: internal wifi/wimax combo device
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* @iq_invert: I/Q inversion
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* @temp_offset_v2: support v2 of temperature offset calibration
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*
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* We enable the driver to be backward compatible wrt API version. The
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* driver specifies which APIs it supports (with @ucode_api_max being the
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* highest and @ucode_api_min the lowest). Firmware will only be loaded if
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* it has a supported API version.
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*
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* The ideal usage of this infrastructure is to treat a new ucode API
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* release as a new hardware revision.
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*/
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struct iwl_cfg {
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/* params specific to an individual device within a device family */
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const char *name;
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const char *fw_name_pre;
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const unsigned int ucode_api_max;
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const unsigned int ucode_api_ok;
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const unsigned int ucode_api_min;
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const u32 max_data_size;
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const u32 max_inst_size;
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u8 valid_tx_ant;
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u8 valid_rx_ant;
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u16 sku;
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u16 eeprom_ver;
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u16 eeprom_calib_ver;
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const struct iwl_lib_ops *lib;
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void (*additional_nic_config)(struct iwl_priv *priv);
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/* params not likely to change within a device family */
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struct iwl_base_params *base_params;
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/* params likely to change within a device family */
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struct iwl_ht_params *ht_params;
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struct iwl_bt_params *bt_params;
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enum iwl_pa_type pa_type; /* if used set to IWL_PA_SYSTEM */
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const bool need_temp_offset_calib; /* if used set to true */
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const bool no_xtal_calib;
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u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
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enum iwl_led_mode led_mode;
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const bool adv_pm;
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const bool rx_with_siso_diversity;
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const bool internal_wimax_coex;
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const bool iq_invert;
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const bool temp_offset_v2;
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};
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/**
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* struct iwl_shared - shared fields for all the layers of the driver
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*
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* @dbg_level_dev: dbg level set per device. Prevails on
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* iwlagn_mod_params.debug_level if set (!= 0)
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* @ucode_owner: IWL_OWNERSHIP_*
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* @cmd_queue: command queue number
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* @status: STATUS_*
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* @wowlan: are we running wowlan uCode
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* @valid_contexts: microcode/device supports multiple contexts
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* @bus: pointer to the bus layer data
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* @cfg: see struct iwl_cfg
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* @priv: pointer to the upper layer data
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* @trans: pointer to the transport layer data
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* @nic: pointer to the nic data
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* @hw_params: see struct iwl_hw_params
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* @lock: protect general shared data
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* @sta_lock: protects the station table.
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* If lock and sta_lock are needed, lock must be acquired first.
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* @mutex:
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* @wait_command_queue: the wait_queue for SYNC host command nad uCode load
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* @eeprom: pointer to the eeprom/OTP image
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* @ucode_type: indicator of loaded ucode image
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* @notif_waits: things waiting for notification
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* @notif_wait_lock: lock protecting notification
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* @notif_waitq: head of notification wait queue
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* @device_pointers: pointers to ucode event tables
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*/
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struct iwl_shared {
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#ifdef CONFIG_IWLWIFI_DEBUG
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u32 dbg_level_dev;
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#endif /* CONFIG_IWLWIFI_DEBUG */
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#define IWL_OWNERSHIP_DRIVER 0
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#define IWL_OWNERSHIP_TM 1
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u8 ucode_owner;
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u8 cmd_queue;
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unsigned long status;
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bool wowlan;
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u8 valid_contexts;
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struct iwl_bus *bus;
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struct iwl_cfg *cfg;
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struct iwl_priv *priv;
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struct iwl_trans *trans;
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struct iwl_nic *nic;
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struct iwl_hw_params hw_params;
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spinlock_t lock;
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spinlock_t sta_lock;
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struct mutex mutex;
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wait_queue_head_t wait_command_queue;
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/* eeprom -- this is in the card's little endian byte order */
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u8 *eeprom;
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/* ucode related variables */
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enum iwl_ucode_type ucode_type;
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/* notification wait support */
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struct list_head notif_waits;
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spinlock_t notif_wait_lock;
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wait_queue_head_t notif_waitq;
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struct {
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u32 error_event_table;
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u32 log_event_table;
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} device_pointers;
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};
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/*Whatever _m is (iwl_trans, iwl_priv, iwl_bus, these macros will work */
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#define priv(_m) ((_m)->shrd->priv)
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#define cfg(_m) ((_m)->shrd->cfg)
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#define bus(_m) ((_m)->shrd->bus)
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#define nic(_m) ((_m)->shrd->nic)
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#define trans(_m) ((_m)->shrd->trans)
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#define hw_params(_m) ((_m)->shrd->hw_params)
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#ifdef CONFIG_IWLWIFI_DEBUG
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/*
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* iwl_get_debug_level: Return active debug level for device
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*
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* Using sysfs it is possible to set per device debug level. This debug
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* level will be used if set, otherwise the global debug level which can be
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* set via module parameter is used.
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*/
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static inline u32 iwl_get_debug_level(struct iwl_shared *shrd)
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{
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if (shrd->dbg_level_dev)
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return shrd->dbg_level_dev;
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else
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return iwlagn_mod_params.debug_level;
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}
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#else
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static inline u32 iwl_get_debug_level(struct iwl_shared *shrd)
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{
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return iwlagn_mod_params.debug_level;
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}
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#endif
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static inline void iwl_free_pages(struct iwl_shared *shrd, unsigned long page)
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{
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free_pages(page, shrd->hw_params.rx_page_order);
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}
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/**
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* iwl_queue_inc_wrap - increment queue index, wrap back to beginning
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* @index -- current index
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* @n_bd -- total number of entries in queue (must be power of 2)
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*/
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static inline int iwl_queue_inc_wrap(int index, int n_bd)
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{
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return ++index & (n_bd - 1);
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}
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/**
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* iwl_queue_dec_wrap - decrement queue index, wrap back to end
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* @index -- current index
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* @n_bd -- total number of entries in queue (must be power of 2)
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*/
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static inline int iwl_queue_dec_wrap(int index, int n_bd)
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{
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return --index & (n_bd - 1);
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}
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struct iwl_rx_mem_buffer {
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dma_addr_t page_dma;
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struct page *page;
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struct list_head list;
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};
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#define rxb_addr(r) page_address(r->page)
|
|
|
|
/*
|
|
* mac80211 queues, ACs, hardware queues, FIFOs.
|
|
*
|
|
* Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
|
|
*
|
|
* Mac80211 uses the following numbers, which we get as from it
|
|
* by way of skb_get_queue_mapping(skb):
|
|
*
|
|
* VO 0
|
|
* VI 1
|
|
* BE 2
|
|
* BK 3
|
|
*
|
|
*
|
|
* Regular (not A-MPDU) frames are put into hardware queues corresponding
|
|
* to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
|
|
* own queue per aggregation session (RA/TID combination), such queues are
|
|
* set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
|
|
* order to map frames to the right queue, we also need an AC->hw queue
|
|
* mapping. This is implemented here.
|
|
*
|
|
* Due to the way hw queues are set up (by the hw specific modules like
|
|
* iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity
|
|
* mapping.
|
|
*/
|
|
|
|
static const u8 tid_to_ac[] = {
|
|
IEEE80211_AC_BE,
|
|
IEEE80211_AC_BK,
|
|
IEEE80211_AC_BK,
|
|
IEEE80211_AC_BE,
|
|
IEEE80211_AC_VI,
|
|
IEEE80211_AC_VI,
|
|
IEEE80211_AC_VO,
|
|
IEEE80211_AC_VO
|
|
};
|
|
|
|
static inline int get_ac_from_tid(u16 tid)
|
|
{
|
|
if (likely(tid < ARRAY_SIZE(tid_to_ac)))
|
|
return tid_to_ac[tid];
|
|
|
|
/* no support for TIDs 8-15 yet */
|
|
return -EINVAL;
|
|
}
|
|
|
|
enum iwl_rxon_context_id {
|
|
IWL_RXON_CTX_BSS,
|
|
IWL_RXON_CTX_PAN,
|
|
|
|
NUM_IWL_RXON_CTX
|
|
};
|
|
|
|
int iwlagn_hw_valid_rtc_data_addr(u32 addr);
|
|
void iwl_set_hw_rfkill_state(struct iwl_priv *priv, bool state);
|
|
void iwl_nic_config(struct iwl_priv *priv);
|
|
void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand);
|
|
const char *get_cmd_string(u8 cmd);
|
|
bool iwl_check_for_ct_kill(struct iwl_priv *priv);
|
|
|
|
void iwl_stop_sw_queue(struct iwl_priv *priv, u8 ac);
|
|
void iwl_wake_sw_queue(struct iwl_priv *priv, u8 ac);
|
|
|
|
/* notification wait support */
|
|
void iwl_abort_notification_waits(struct iwl_shared *shrd);
|
|
void __acquires(wait_entry)
|
|
iwl_init_notification_wait(struct iwl_shared *shrd,
|
|
struct iwl_notification_wait *wait_entry,
|
|
u8 cmd,
|
|
void (*fn)(struct iwl_trans *trans,
|
|
struct iwl_rx_packet *pkt,
|
|
void *data),
|
|
void *fn_data);
|
|
int __must_check __releases(wait_entry)
|
|
iwl_wait_notification(struct iwl_shared *shrd,
|
|
struct iwl_notification_wait *wait_entry,
|
|
unsigned long timeout);
|
|
void __releases(wait_entry)
|
|
iwl_remove_notification(struct iwl_shared *shrd,
|
|
struct iwl_notification_wait *wait_entry);
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUGFS
|
|
void iwl_reset_traffic_log(struct iwl_priv *priv);
|
|
#endif /* CONFIG_IWLWIFI_DEBUGFS */
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
void iwl_print_rx_config_cmd(struct iwl_priv *priv,
|
|
enum iwl_rxon_context_id ctxid);
|
|
#else
|
|
static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
|
|
enum iwl_rxon_context_id ctxid)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#define IWL_CMD(x) case x: return #x
|
|
#define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
|
|
|
|
#define IWL_TRAFFIC_ENTRIES (256)
|
|
#define IWL_TRAFFIC_ENTRY_SIZE (64)
|
|
|
|
/*****************************************************
|
|
* DRIVER STATUS FUNCTIONS
|
|
******************************************************/
|
|
#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
|
|
/* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
|
|
#define STATUS_INT_ENABLED 2
|
|
#define STATUS_RF_KILL_HW 3
|
|
#define STATUS_CT_KILL 4
|
|
#define STATUS_INIT 5
|
|
#define STATUS_ALIVE 6
|
|
#define STATUS_READY 7
|
|
#define STATUS_TEMPERATURE 8
|
|
#define STATUS_GEO_CONFIGURED 9
|
|
#define STATUS_EXIT_PENDING 10
|
|
#define STATUS_STATISTICS 12
|
|
#define STATUS_SCANNING 13
|
|
#define STATUS_SCAN_ABORTING 14
|
|
#define STATUS_SCAN_HW 15
|
|
#define STATUS_POWER_PMI 16
|
|
#define STATUS_FW_ERROR 17
|
|
#define STATUS_DEVICE_ENABLED 18
|
|
#define STATUS_CHANNEL_SWITCH_PENDING 19
|
|
#define STATUS_SCAN_COMPLETE 20
|
|
|
|
static inline int iwl_is_ready(struct iwl_shared *shrd)
|
|
{
|
|
/* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
|
|
* set but EXIT_PENDING is not */
|
|
return test_bit(STATUS_READY, &shrd->status) &&
|
|
test_bit(STATUS_GEO_CONFIGURED, &shrd->status) &&
|
|
!test_bit(STATUS_EXIT_PENDING, &shrd->status);
|
|
}
|
|
|
|
static inline int iwl_is_alive(struct iwl_shared *shrd)
|
|
{
|
|
return test_bit(STATUS_ALIVE, &shrd->status);
|
|
}
|
|
|
|
static inline int iwl_is_init(struct iwl_shared *shrd)
|
|
{
|
|
return test_bit(STATUS_INIT, &shrd->status);
|
|
}
|
|
|
|
static inline int iwl_is_rfkill_hw(struct iwl_shared *shrd)
|
|
{
|
|
return test_bit(STATUS_RF_KILL_HW, &shrd->status);
|
|
}
|
|
|
|
static inline int iwl_is_rfkill(struct iwl_shared *shrd)
|
|
{
|
|
return iwl_is_rfkill_hw(shrd);
|
|
}
|
|
|
|
static inline int iwl_is_ctkill(struct iwl_shared *shrd)
|
|
{
|
|
return test_bit(STATUS_CT_KILL, &shrd->status);
|
|
}
|
|
|
|
static inline int iwl_is_ready_rf(struct iwl_shared *shrd)
|
|
{
|
|
if (iwl_is_rfkill(shrd))
|
|
return 0;
|
|
|
|
return iwl_is_ready(shrd);
|
|
}
|
|
|
|
#endif /* #__iwl_shared_h__ */
|