1735 lines
48 KiB
C
1735 lines
48 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) 2005 - 2007 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 Geeral 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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* James P. Ketrenos <ipw2100-admin@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 - 2007 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_commands_h__
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#define __iwl_commands_h__
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enum {
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REPLY_ALIVE = 0x1,
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REPLY_ERROR = 0x2,
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/* RXON and QOS commands */
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REPLY_RXON = 0x10,
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REPLY_RXON_ASSOC = 0x11,
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REPLY_QOS_PARAM = 0x13,
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REPLY_RXON_TIMING = 0x14,
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/* Multi-Station support */
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REPLY_ADD_STA = 0x18,
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REPLY_REMOVE_STA = 0x19, /* not used */
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REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
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/* RX, TX, LEDs */
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#if IWL == 3945
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REPLY_3945_RX = 0x1b, /* 3945 only */
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#endif
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REPLY_TX = 0x1c,
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REPLY_RATE_SCALE = 0x47, /* 3945 only */
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REPLY_LEDS_CMD = 0x48,
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REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
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/* 802.11h related */
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RADAR_NOTIFICATION = 0x70, /* not used */
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REPLY_QUIET_CMD = 0x71, /* not used */
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REPLY_CHANNEL_SWITCH = 0x72,
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CHANNEL_SWITCH_NOTIFICATION = 0x73,
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REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
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SPECTRUM_MEASURE_NOTIFICATION = 0x75,
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/* Power Management */
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POWER_TABLE_CMD = 0x77,
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PM_SLEEP_NOTIFICATION = 0x7A,
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PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
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/* Scan commands and notifications */
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REPLY_SCAN_CMD = 0x80,
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REPLY_SCAN_ABORT_CMD = 0x81,
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SCAN_START_NOTIFICATION = 0x82,
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SCAN_RESULTS_NOTIFICATION = 0x83,
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SCAN_COMPLETE_NOTIFICATION = 0x84,
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/* IBSS/AP commands */
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BEACON_NOTIFICATION = 0x90,
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REPLY_TX_BEACON = 0x91,
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WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
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/* Miscellaneous commands */
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QUIET_NOTIFICATION = 0x96, /* not used */
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REPLY_TX_PWR_TABLE_CMD = 0x97,
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MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
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/* BT config command */
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REPLY_BT_CONFIG = 0x9b,
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/* 4965 Statistics */
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REPLY_STATISTICS_CMD = 0x9c,
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STATISTICS_NOTIFICATION = 0x9d,
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/* RF-KILL commands and notifications */
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REPLY_CARD_STATE_CMD = 0xa0,
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CARD_STATE_NOTIFICATION = 0xa1,
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/* Missed beacons notification */
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MISSED_BEACONS_NOTIFICATION = 0xa2,
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#if IWL == 4965
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REPLY_CT_KILL_CONFIG_CMD = 0xa4,
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SENSITIVITY_CMD = 0xa8,
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REPLY_PHY_CALIBRATION_CMD = 0xb0,
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REPLY_RX_PHY_CMD = 0xc0,
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REPLY_RX_MPDU_CMD = 0xc1,
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REPLY_4965_RX = 0xc3,
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REPLY_COMPRESSED_BA = 0xc5,
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#endif
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REPLY_MAX = 0xff
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};
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/******************************************************************************
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* (0)
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* Header
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*
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*****************************************************************************/
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#define IWL_CMD_FAILED_MSK 0x40
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struct iwl_cmd_header {
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u8 cmd;
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u8 flags;
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/* We have 15 LSB to use as we please (MSB indicates
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* a frame Rx'd from the HW). We encode the following
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* information into the sequence field:
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*
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* 0:7 index in fifo
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* 8:13 fifo selection
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* 14:14 bit indicating if this packet references the 'extra'
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* storage at the end of the memory queue
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* 15:15 (Rx indication)
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*
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*/
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__le16 sequence;
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/* command data follows immediately */
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u8 data[0];
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} __attribute__ ((packed));
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/******************************************************************************
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* (0a)
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* Alive and Error Commands & Responses:
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*
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*****************************************************************************/
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#define UCODE_VALID_OK __constant_cpu_to_le32(0x1)
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#define INITIALIZE_SUBTYPE (9)
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/*
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* REPLY_ALIVE = 0x1 (response only, not a command)
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*/
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struct iwl_alive_resp {
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u8 ucode_minor;
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u8 ucode_major;
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__le16 reserved1;
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u8 sw_rev[8];
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u8 ver_type;
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u8 ver_subtype;
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__le16 reserved2;
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__le32 log_event_table_ptr;
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__le32 error_event_table_ptr;
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__le32 timestamp;
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__le32 is_valid;
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} __attribute__ ((packed));
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struct iwl_init_alive_resp {
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u8 ucode_minor;
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u8 ucode_major;
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__le16 reserved1;
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u8 sw_rev[8];
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u8 ver_type;
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u8 ver_subtype;
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__le16 reserved2;
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__le32 log_event_table_ptr;
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__le32 error_event_table_ptr;
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__le32 timestamp;
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__le32 is_valid;
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#if IWL == 4965
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/* calibration values from "initialize" uCode */
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__le32 voltage; /* signed */
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__le32 therm_r1[2]; /* signed 1st for normal, 2nd for FAT channel */
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__le32 therm_r2[2]; /* signed */
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__le32 therm_r3[2]; /* signed */
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__le32 therm_r4[2]; /* signed */
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__le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
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* 2 Tx chains */
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#endif
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} __attribute__ ((packed));
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union tsf {
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u8 byte[8];
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__le16 word[4];
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__le32 dw[2];
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};
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/*
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* REPLY_ERROR = 0x2 (response only, not a command)
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*/
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struct iwl_error_resp {
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__le32 error_type;
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u8 cmd_id;
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u8 reserved1;
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__le16 bad_cmd_seq_num;
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#if IWL == 3945
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__le16 reserved2;
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#endif
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__le32 error_info;
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union tsf timestamp;
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} __attribute__ ((packed));
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/******************************************************************************
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* (1)
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* RXON Commands & Responses:
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*
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*****************************************************************************/
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/*
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* Rx config defines & structure
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*/
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/* rx_config device types */
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enum {
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RXON_DEV_TYPE_AP = 1,
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RXON_DEV_TYPE_ESS = 3,
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RXON_DEV_TYPE_IBSS = 4,
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RXON_DEV_TYPE_SNIFFER = 6,
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};
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/* rx_config flags */
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/* band & modulation selection */
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#define RXON_FLG_BAND_24G_MSK __constant_cpu_to_le32(1 << 0)
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#define RXON_FLG_CCK_MSK __constant_cpu_to_le32(1 << 1)
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/* auto detection enable */
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#define RXON_FLG_AUTO_DETECT_MSK __constant_cpu_to_le32(1 << 2)
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/* TGg protection when tx */
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#define RXON_FLG_TGG_PROTECT_MSK __constant_cpu_to_le32(1 << 3)
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/* cck short slot & preamble */
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#define RXON_FLG_SHORT_SLOT_MSK __constant_cpu_to_le32(1 << 4)
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#define RXON_FLG_SHORT_PREAMBLE_MSK __constant_cpu_to_le32(1 << 5)
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/* antenna selection */
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#define RXON_FLG_DIS_DIV_MSK __constant_cpu_to_le32(1 << 7)
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#define RXON_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0x0f00)
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#define RXON_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
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#define RXON_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
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/* radar detection enable */
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#define RXON_FLG_RADAR_DETECT_MSK __constant_cpu_to_le32(1 << 12)
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#define RXON_FLG_TGJ_NARROW_BAND_MSK __constant_cpu_to_le32(1 << 13)
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/* rx response to host with 8-byte TSF
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* (according to ON_AIR deassertion) */
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#define RXON_FLG_TSF2HOST_MSK __constant_cpu_to_le32(1 << 15)
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/* rx_config filter flags */
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/* accept all data frames */
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#define RXON_FILTER_PROMISC_MSK __constant_cpu_to_le32(1 << 0)
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/* pass control & management to host */
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#define RXON_FILTER_CTL2HOST_MSK __constant_cpu_to_le32(1 << 1)
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/* accept multi-cast */
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#define RXON_FILTER_ACCEPT_GRP_MSK __constant_cpu_to_le32(1 << 2)
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/* don't decrypt uni-cast frames */
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#define RXON_FILTER_DIS_DECRYPT_MSK __constant_cpu_to_le32(1 << 3)
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/* don't decrypt multi-cast frames */
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#define RXON_FILTER_DIS_GRP_DECRYPT_MSK __constant_cpu_to_le32(1 << 4)
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/* STA is associated */
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#define RXON_FILTER_ASSOC_MSK __constant_cpu_to_le32(1 << 5)
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/* transfer to host non bssid beacons in associated state */
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#define RXON_FILTER_BCON_AWARE_MSK __constant_cpu_to_le32(1 << 6)
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/*
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* REPLY_RXON = 0x10 (command, has simple generic response)
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*/
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struct iwl_rxon_cmd {
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u8 node_addr[6];
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__le16 reserved1;
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u8 bssid_addr[6];
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__le16 reserved2;
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u8 wlap_bssid_addr[6];
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__le16 reserved3;
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u8 dev_type;
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u8 air_propagation;
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#if IWL == 3945
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__le16 reserved4;
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#elif IWL == 4965
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__le16 rx_chain;
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#endif
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u8 ofdm_basic_rates;
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u8 cck_basic_rates;
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__le16 assoc_id;
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__le32 flags;
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__le32 filter_flags;
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__le16 channel;
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#if IWL == 3945
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__le16 reserved5;
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#elif IWL == 4965
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u8 ofdm_ht_single_stream_basic_rates;
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u8 ofdm_ht_dual_stream_basic_rates;
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#endif
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} __attribute__ ((packed));
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/*
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* REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
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*/
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struct iwl_rxon_assoc_cmd {
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__le32 flags;
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__le32 filter_flags;
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u8 ofdm_basic_rates;
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u8 cck_basic_rates;
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#if IWL == 4965
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u8 ofdm_ht_single_stream_basic_rates;
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u8 ofdm_ht_dual_stream_basic_rates;
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__le16 rx_chain_select_flags;
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#endif
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__le16 reserved;
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} __attribute__ ((packed));
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/*
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* REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
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*/
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struct iwl_rxon_time_cmd {
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union tsf timestamp;
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__le16 beacon_interval;
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__le16 atim_window;
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__le32 beacon_init_val;
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__le16 listen_interval;
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__le16 reserved;
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} __attribute__ ((packed));
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struct iwl_tx_power {
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u8 tx_gain; /* gain for analog radio */
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u8 dsp_atten; /* gain for DSP */
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} __attribute__ ((packed));
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#if IWL == 3945
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struct iwl_power_per_rate {
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u8 rate; /* plcp */
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struct iwl_tx_power tpc;
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u8 reserved;
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} __attribute__ ((packed));
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#elif IWL == 4965
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#define POWER_TABLE_NUM_ENTRIES 33
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#define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
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#define POWER_TABLE_CCK_ENTRY 32
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struct tx_power_dual_stream {
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__le32 dw;
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} __attribute__ ((packed));
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struct iwl_tx_power_db {
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struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
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} __attribute__ ((packed));
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#endif
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/*
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* REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
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*/
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struct iwl_channel_switch_cmd {
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u8 band;
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u8 expect_beacon;
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__le16 channel;
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__le32 rxon_flags;
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__le32 rxon_filter_flags;
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__le32 switch_time;
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#if IWL == 3945
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struct iwl_power_per_rate power[IWL_MAX_RATES];
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#elif IWL == 4965
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struct iwl_tx_power_db tx_power;
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#endif
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} __attribute__ ((packed));
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/*
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* CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
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*/
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struct iwl_csa_notification {
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__le16 band;
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__le16 channel;
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__le32 status; /* 0 - OK, 1 - fail */
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} __attribute__ ((packed));
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/******************************************************************************
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* (2)
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* Quality-of-Service (QOS) Commands & Responses:
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*
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*****************************************************************************/
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struct iwl_ac_qos {
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__le16 cw_min;
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__le16 cw_max;
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u8 aifsn;
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u8 reserved1;
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__le16 edca_txop;
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} __attribute__ ((packed));
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/* QoS flags defines */
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#define QOS_PARAM_FLG_UPDATE_EDCA_MSK __constant_cpu_to_le32(0x01)
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#define QOS_PARAM_FLG_TGN_MSK __constant_cpu_to_le32(0x02)
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#define QOS_PARAM_FLG_TXOP_TYPE_MSK __constant_cpu_to_le32(0x10)
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/*
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* TXFIFO Queue number defines
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*/
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/* number of Access categories (AC) (EDCA), queues 0..3 */
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#define AC_NUM 4
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/*
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* REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
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*/
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struct iwl_qosparam_cmd {
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__le32 qos_flags;
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struct iwl_ac_qos ac[AC_NUM];
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} __attribute__ ((packed));
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/******************************************************************************
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* (3)
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* Add/Modify Stations Commands & Responses:
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*
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*****************************************************************************/
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/*
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* Multi station support
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*/
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#define IWL_AP_ID 0
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#define IWL_MULTICAST_ID 1
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#define IWL_STA_ID 2
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#define IWL3945_BROADCAST_ID 24
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#define IWL3945_STATION_COUNT 25
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#define IWL4965_BROADCAST_ID 31
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#define IWL4965_STATION_COUNT 32
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#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
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#define IWL_INVALID_STATION 255
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#if IWL == 3945
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#define STA_FLG_TX_RATE_MSK __constant_cpu_to_le32(1<<2);
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#endif
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#define STA_FLG_PWR_SAVE_MSK __constant_cpu_to_le32(1<<8);
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#define STA_CONTROL_MODIFY_MSK 0x01
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/* key flags __le16*/
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#define STA_KEY_FLG_ENCRYPT_MSK __constant_cpu_to_le16(0x7)
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#define STA_KEY_FLG_NO_ENC __constant_cpu_to_le16(0x0)
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#define STA_KEY_FLG_WEP __constant_cpu_to_le16(0x1)
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#define STA_KEY_FLG_CCMP __constant_cpu_to_le16(0x2)
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#define STA_KEY_FLG_TKIP __constant_cpu_to_le16(0x3)
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#define STA_KEY_FLG_KEYID_POS 8
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#define STA_KEY_FLG_INVALID __constant_cpu_to_le16(0x0800)
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/* modify flags */
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#define STA_MODIFY_KEY_MASK 0x01
|
|
#define STA_MODIFY_TID_DISABLE_TX 0x02
|
|
#define STA_MODIFY_TX_RATE_MSK 0x04
|
|
#define STA_MODIFY_ADDBA_TID_MSK 0x08
|
|
#define STA_MODIFY_DELBA_TID_MSK 0x10
|
|
#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
|
|
|
|
/*
|
|
* Antenna masks:
|
|
* bit14:15 01 B inactive, A active
|
|
* 10 B active, A inactive
|
|
* 11 Both active
|
|
*/
|
|
#define RATE_MCS_ANT_A_POS 14
|
|
#define RATE_MCS_ANT_B_POS 15
|
|
#define RATE_MCS_ANT_A_MSK 0x4000
|
|
#define RATE_MCS_ANT_B_MSK 0x8000
|
|
#define RATE_MCS_ANT_AB_MSK 0xc000
|
|
|
|
struct iwl_keyinfo {
|
|
__le16 key_flags;
|
|
u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
|
|
u8 reserved1;
|
|
__le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
|
|
__le16 reserved2;
|
|
u8 key[16]; /* 16-byte unicast decryption key */
|
|
} __attribute__ ((packed));
|
|
|
|
struct sta_id_modify {
|
|
u8 addr[ETH_ALEN];
|
|
__le16 reserved1;
|
|
u8 sta_id;
|
|
u8 modify_mask;
|
|
__le16 reserved2;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_ADD_STA = 0x18 (command)
|
|
*/
|
|
struct iwl_addsta_cmd {
|
|
u8 mode;
|
|
u8 reserved[3];
|
|
struct sta_id_modify sta;
|
|
struct iwl_keyinfo key;
|
|
__le32 station_flags;
|
|
__le32 station_flags_msk;
|
|
__le16 tid_disable_tx;
|
|
#if IWL == 3945
|
|
__le16 rate_n_flags;
|
|
#else
|
|
__le16 reserved1;
|
|
#endif
|
|
u8 add_immediate_ba_tid;
|
|
u8 remove_immediate_ba_tid;
|
|
__le16 add_immediate_ba_ssn;
|
|
#if IWL == 4965
|
|
__le32 reserved2;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_ADD_STA = 0x18 (response)
|
|
*/
|
|
struct iwl_add_sta_resp {
|
|
u8 status;
|
|
} __attribute__ ((packed));
|
|
|
|
#define ADD_STA_SUCCESS_MSK 0x1
|
|
|
|
/******************************************************************************
|
|
* (4)
|
|
* Rx Responses:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
struct iwl_rx_frame_stats {
|
|
u8 phy_count;
|
|
u8 id;
|
|
u8 rssi;
|
|
u8 agc;
|
|
__le16 sig_avg;
|
|
__le16 noise_diff;
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct iwl_rx_frame_hdr {
|
|
__le16 channel;
|
|
__le16 phy_flags;
|
|
u8 reserved1;
|
|
u8 rate;
|
|
__le16 len;
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
#define RX_RES_STATUS_NO_CRC32_ERROR __constant_cpu_to_le32(1 << 0)
|
|
#define RX_RES_STATUS_NO_RXE_OVERFLOW __constant_cpu_to_le32(1 << 1)
|
|
|
|
#define RX_RES_PHY_FLAGS_BAND_24_MSK __constant_cpu_to_le16(1 << 0)
|
|
#define RX_RES_PHY_FLAGS_MOD_CCK_MSK __constant_cpu_to_le16(1 << 1)
|
|
#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK __constant_cpu_to_le16(1 << 2)
|
|
#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK __constant_cpu_to_le16(1 << 3)
|
|
#define RX_RES_PHY_FLAGS_ANTENNA_MSK __constant_cpu_to_le16(0xf0)
|
|
|
|
#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
|
|
#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
|
|
#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
|
|
#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
|
|
#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
|
|
|
|
#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
|
|
#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
|
|
#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
|
|
#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
|
|
#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
|
|
|
|
struct iwl_rx_frame_end {
|
|
__le32 status;
|
|
__le64 timestamp;
|
|
__le32 beacon_timestamp;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_3945_RX = 0x1b (response only, not a command)
|
|
*
|
|
* NOTE: DO NOT dereference from casts to this structure
|
|
* It is provided only for calculating minimum data set size.
|
|
* The actual offsets of the hdr and end are dynamic based on
|
|
* stats.phy_count
|
|
*/
|
|
struct iwl_rx_frame {
|
|
struct iwl_rx_frame_stats stats;
|
|
struct iwl_rx_frame_hdr hdr;
|
|
struct iwl_rx_frame_end end;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Fixed (non-configurable) rx data from phy */
|
|
#define RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
|
|
#define RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
|
|
#define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
|
|
#define IWL_AGC_DB_POS (7)
|
|
struct iwl4965_rx_non_cfg_phy {
|
|
__le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
|
|
__le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
|
|
u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
|
|
u8 pad[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_4965_RX = 0xc3 (response only, not a command)
|
|
* Used only for legacy (non 11n) frames.
|
|
*/
|
|
#define RX_RES_PHY_CNT 14
|
|
struct iwl4965_rx_phy_res {
|
|
u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
|
|
u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
|
|
u8 stat_id; /* configurable DSP phy data set ID */
|
|
u8 reserved1;
|
|
__le64 timestamp; /* TSF at on air rise */
|
|
__le32 beacon_time_stamp; /* beacon at on-air rise */
|
|
__le16 phy_flags; /* general phy flags: band, modulation, ... */
|
|
__le16 channel; /* channel number */
|
|
__le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */
|
|
__le32 reserved2;
|
|
__le32 rate_n_flags;
|
|
__le16 byte_count; /* frame's byte-count */
|
|
__le16 reserved3;
|
|
} __attribute__ ((packed));
|
|
|
|
struct iwl4965_rx_mpdu_res_start {
|
|
__le16 byte_count;
|
|
__le16 reserved;
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
/******************************************************************************
|
|
* (5)
|
|
* Tx Commands & Responses:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/* Tx flags */
|
|
#define TX_CMD_FLG_RTS_MSK __constant_cpu_to_le32(1 << 1)
|
|
#define TX_CMD_FLG_CTS_MSK __constant_cpu_to_le32(1 << 2)
|
|
#define TX_CMD_FLG_ACK_MSK __constant_cpu_to_le32(1 << 3)
|
|
#define TX_CMD_FLG_STA_RATE_MSK __constant_cpu_to_le32(1 << 4)
|
|
#define TX_CMD_FLG_IMM_BA_RSP_MASK __constant_cpu_to_le32(1 << 6)
|
|
#define TX_CMD_FLG_FULL_TXOP_PROT_MSK __constant_cpu_to_le32(1 << 7)
|
|
#define TX_CMD_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0xf00)
|
|
#define TX_CMD_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
|
|
#define TX_CMD_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
|
|
|
|
/* ucode ignores BT priority for this frame */
|
|
#define TX_CMD_FLG_BT_DIS_MSK __constant_cpu_to_le32(1 << 12)
|
|
|
|
/* ucode overrides sequence control */
|
|
#define TX_CMD_FLG_SEQ_CTL_MSK __constant_cpu_to_le32(1 << 13)
|
|
|
|
/* signal that this frame is non-last MPDU */
|
|
#define TX_CMD_FLG_MORE_FRAG_MSK __constant_cpu_to_le32(1 << 14)
|
|
|
|
/* calculate TSF in outgoing frame */
|
|
#define TX_CMD_FLG_TSF_MSK __constant_cpu_to_le32(1 << 16)
|
|
|
|
/* activate TX calibration. */
|
|
#define TX_CMD_FLG_CALIB_MSK __constant_cpu_to_le32(1 << 17)
|
|
|
|
/* signals that 2 bytes pad was inserted
|
|
after the MAC header */
|
|
#define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20)
|
|
|
|
/* HCCA-AP - disable duration overwriting. */
|
|
#define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25)
|
|
|
|
/*
|
|
* TX command security control
|
|
*/
|
|
#define TX_CMD_SEC_WEP 0x01
|
|
#define TX_CMD_SEC_CCM 0x02
|
|
#define TX_CMD_SEC_TKIP 0x03
|
|
#define TX_CMD_SEC_MSK 0x03
|
|
#define TX_CMD_SEC_SHIFT 6
|
|
#define TX_CMD_SEC_KEY128 0x08
|
|
|
|
/*
|
|
* TX command Frame life time
|
|
*/
|
|
|
|
struct iwl_dram_scratch {
|
|
u8 try_cnt;
|
|
u8 bt_kill_cnt;
|
|
__le16 reserved;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_TX = 0x1c (command)
|
|
*/
|
|
struct iwl_tx_cmd {
|
|
__le16 len;
|
|
__le16 next_frame_len;
|
|
__le32 tx_flags;
|
|
#if IWL == 3945
|
|
u8 rate;
|
|
u8 sta_id;
|
|
u8 tid_tspec;
|
|
#elif IWL == 4965
|
|
struct iwl_dram_scratch scratch;
|
|
__le32 rate_n_flags;
|
|
u8 sta_id;
|
|
#endif
|
|
u8 sec_ctl;
|
|
#if IWL == 4965
|
|
u8 initial_rate_index;
|
|
u8 reserved;
|
|
#endif
|
|
u8 key[16];
|
|
#if IWL == 3945
|
|
union {
|
|
u8 byte[8];
|
|
__le16 word[4];
|
|
__le32 dw[2];
|
|
} tkip_mic;
|
|
__le32 next_frame_info;
|
|
#elif IWL == 4965
|
|
__le16 next_frame_flags;
|
|
__le16 reserved2;
|
|
#endif
|
|
union {
|
|
__le32 life_time;
|
|
__le32 attempt;
|
|
} stop_time;
|
|
#if IWL == 3945
|
|
u8 supp_rates[2];
|
|
#elif IWL == 4965
|
|
__le32 dram_lsb_ptr;
|
|
u8 dram_msb_ptr;
|
|
#endif
|
|
u8 rts_retry_limit; /*byte 50 */
|
|
u8 data_retry_limit; /*byte 51 */
|
|
#if IWL == 4965
|
|
u8 tid_tspec;
|
|
#endif
|
|
union {
|
|
__le16 pm_frame_timeout;
|
|
__le16 attempt_duration;
|
|
} timeout;
|
|
__le16 driver_txop;
|
|
u8 payload[0];
|
|
struct ieee80211_hdr hdr[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/* TX command response is sent after *all* transmission attempts.
|
|
*
|
|
* NOTES:
|
|
*
|
|
* TX_STATUS_FAIL_NEXT_FRAG
|
|
*
|
|
* If the fragment flag in the MAC header for the frame being transmitted
|
|
* is set and there is insufficient time to transmit the next frame, the
|
|
* TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
|
|
*
|
|
* TX_STATUS_FIFO_UNDERRUN
|
|
*
|
|
* Indicates the host did not provide bytes to the FIFO fast enough while
|
|
* a TX was in progress.
|
|
*
|
|
* TX_STATUS_FAIL_MGMNT_ABORT
|
|
*
|
|
* This status is only possible if the ABORT ON MGMT RX parameter was
|
|
* set to true with the TX command.
|
|
*
|
|
* If the MSB of the status parameter is set then an abort sequence is
|
|
* required. This sequence consists of the host activating the TX Abort
|
|
* control line, and then waiting for the TX Abort command response. This
|
|
* indicates that a the device is no longer in a transmit state, and that the
|
|
* command FIFO has been cleared. The host must then deactivate the TX Abort
|
|
* control line. Receiving is still allowed in this case.
|
|
*/
|
|
enum {
|
|
TX_STATUS_SUCCESS = 0x01,
|
|
TX_STATUS_DIRECT_DONE = 0x02,
|
|
TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
|
|
TX_STATUS_FAIL_LONG_LIMIT = 0x83,
|
|
TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
|
|
TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
|
|
TX_STATUS_FAIL_NEXT_FRAG = 0x86,
|
|
TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
|
|
TX_STATUS_FAIL_DEST_PS = 0x88,
|
|
TX_STATUS_FAIL_ABORTED = 0x89,
|
|
TX_STATUS_FAIL_BT_RETRY = 0x8a,
|
|
TX_STATUS_FAIL_STA_INVALID = 0x8b,
|
|
TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
|
|
TX_STATUS_FAIL_TID_DISABLE = 0x8d,
|
|
TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
|
|
TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
|
|
TX_STATUS_FAIL_TX_LOCKED = 0x90,
|
|
TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
|
|
};
|
|
|
|
#define TX_PACKET_MODE_REGULAR 0x0000
|
|
#define TX_PACKET_MODE_BURST_SEQ 0x0100
|
|
#define TX_PACKET_MODE_BURST_FIRST 0x0200
|
|
|
|
enum {
|
|
TX_POWER_PA_NOT_ACTIVE = 0x0,
|
|
};
|
|
|
|
enum {
|
|
TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
|
|
TX_STATUS_DELAY_MSK = 0x00000040,
|
|
TX_STATUS_ABORT_MSK = 0x00000080,
|
|
TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
|
|
TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
|
|
TX_RESERVED = 0x00780000, /* bits 19:22 */
|
|
TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
|
|
TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
|
|
};
|
|
|
|
/* *******************************
|
|
* TX aggregation state
|
|
******************************* */
|
|
|
|
enum {
|
|
AGG_TX_STATE_TRANSMITTED = 0x00,
|
|
AGG_TX_STATE_UNDERRUN_MSK = 0x01,
|
|
AGG_TX_STATE_BT_PRIO_MSK = 0x02,
|
|
AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
|
|
AGG_TX_STATE_ABORT_MSK = 0x08,
|
|
AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
|
|
AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
|
|
AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40,
|
|
AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
|
|
AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
|
|
AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
|
|
AGG_TX_STATE_DUMP_TX_MSK = 0x200,
|
|
AGG_TX_STATE_DELAY_TX_MSK = 0x400
|
|
};
|
|
|
|
#define AGG_TX_STATE_LAST_SENT_MSK \
|
|
(AGG_TX_STATE_LAST_SENT_TTL_MSK | \
|
|
AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
|
|
AGG_TX_STATE_LAST_SENT_BT_KILL_MSK)
|
|
|
|
#define AGG_TX_STATE_TRY_CNT_POS 12
|
|
#define AGG_TX_STATE_TRY_CNT_MSK 0xf000
|
|
|
|
#define AGG_TX_STATE_SEQ_NUM_POS 16
|
|
#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
|
|
|
|
/*
|
|
* REPLY_TX = 0x1c (response)
|
|
*/
|
|
#if IWL == 4965
|
|
struct iwl_tx_resp {
|
|
u8 frame_count; /* 1 no aggregation, >1 aggregation */
|
|
u8 bt_kill_count;
|
|
u8 failure_rts;
|
|
u8 failure_frame;
|
|
__le32 rate_n_flags;
|
|
__le16 wireless_media_time;
|
|
__le16 reserved;
|
|
__le32 pa_power1;
|
|
__le32 pa_power2;
|
|
__le32 status; /* TX status (for aggregation status of 1st frame) */
|
|
} __attribute__ ((packed));
|
|
|
|
#elif IWL == 3945
|
|
struct iwl_tx_resp {
|
|
u8 failure_rts;
|
|
u8 failure_frame;
|
|
u8 bt_kill_count;
|
|
u8 rate;
|
|
__le32 wireless_media_time;
|
|
__le32 status; /* TX status (for aggregation status of 1st frame) */
|
|
} __attribute__ ((packed));
|
|
#endif
|
|
|
|
/*
|
|
* REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
|
|
*/
|
|
struct iwl_compressed_ba_resp {
|
|
__le32 sta_addr_lo32;
|
|
__le16 sta_addr_hi16;
|
|
__le16 reserved;
|
|
u8 sta_id;
|
|
u8 tid;
|
|
__le16 ba_seq_ctl;
|
|
__le32 ba_bitmap0;
|
|
__le32 ba_bitmap1;
|
|
__le16 scd_flow;
|
|
__le16 scd_ssn;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
|
|
*/
|
|
struct iwl_txpowertable_cmd {
|
|
u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
|
|
u8 reserved;
|
|
__le16 channel;
|
|
#if IWL == 3945
|
|
struct iwl_power_per_rate power[IWL_MAX_RATES];
|
|
#elif IWL == 4965
|
|
struct iwl_tx_power_db tx_power;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
#if IWL == 3945
|
|
struct iwl_rate_scaling_info {
|
|
__le16 rate_n_flags;
|
|
u8 try_cnt;
|
|
u8 next_rate_index;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct iwl_rate_scaling_cmd - Rate Scaling Command & Response
|
|
*
|
|
* REPLY_RATE_SCALE = 0x47 (command, has simple generic response)
|
|
*
|
|
* NOTE: The table of rates passed to the uCode via the
|
|
* RATE_SCALE command sets up the corresponding order of
|
|
* rates used for all related commands, including rate
|
|
* masks, etc.
|
|
*
|
|
* For example, if you set 9MB (PLCP 0x0f) as the first
|
|
* rate in the rate table, the bit mask for that rate
|
|
* when passed through ofdm_basic_rates on the REPLY_RXON
|
|
* command would be bit 0 (1<<0)
|
|
*/
|
|
struct iwl_rate_scaling_cmd {
|
|
u8 table_id;
|
|
u8 reserved[3];
|
|
struct iwl_rate_scaling_info table[IWL_MAX_RATES];
|
|
} __attribute__ ((packed));
|
|
|
|
#elif IWL == 4965
|
|
|
|
/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
|
|
#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1<<0)
|
|
|
|
#define LINK_QUAL_AC_NUM AC_NUM
|
|
#define LINK_QUAL_MAX_RETRY_NUM 16
|
|
|
|
#define LINK_QUAL_ANT_A_MSK (1<<0)
|
|
#define LINK_QUAL_ANT_B_MSK (1<<1)
|
|
#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
|
|
|
|
struct iwl_link_qual_general_params {
|
|
u8 flags;
|
|
u8 mimo_delimiter;
|
|
u8 single_stream_ant_msk;
|
|
u8 dual_stream_ant_msk;
|
|
u8 start_rate_index[LINK_QUAL_AC_NUM];
|
|
} __attribute__ ((packed));
|
|
|
|
struct iwl_link_qual_agg_params {
|
|
__le16 agg_time_limit;
|
|
u8 agg_dis_start_th;
|
|
u8 agg_frame_cnt_limit;
|
|
__le32 reserved;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
|
|
*/
|
|
struct iwl_link_quality_cmd {
|
|
u8 sta_id;
|
|
u8 reserved1;
|
|
__le16 control;
|
|
struct iwl_link_qual_general_params general_params;
|
|
struct iwl_link_qual_agg_params agg_params;
|
|
struct {
|
|
__le32 rate_n_flags;
|
|
} rs_table[LINK_QUAL_MAX_RETRY_NUM];
|
|
__le32 reserved2;
|
|
} __attribute__ ((packed));
|
|
#endif
|
|
|
|
/*
|
|
* REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
|
|
*/
|
|
struct iwl_bt_cmd {
|
|
u8 flags;
|
|
u8 lead_time;
|
|
u8 max_kill;
|
|
u8 reserved;
|
|
__le32 kill_ack_mask;
|
|
__le32 kill_cts_mask;
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (6)
|
|
* Spectrum Management (802.11h) Commands, Responses, Notifications:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Spectrum Management
|
|
*/
|
|
#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
|
|
RXON_FILTER_CTL2HOST_MSK | \
|
|
RXON_FILTER_ACCEPT_GRP_MSK | \
|
|
RXON_FILTER_DIS_DECRYPT_MSK | \
|
|
RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
|
|
RXON_FILTER_ASSOC_MSK | \
|
|
RXON_FILTER_BCON_AWARE_MSK)
|
|
|
|
struct iwl_measure_channel {
|
|
__le32 duration; /* measurement duration in extended beacon
|
|
* format */
|
|
u8 channel; /* channel to measure */
|
|
u8 type; /* see enum iwl_measure_type */
|
|
__le16 reserved;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
|
|
*/
|
|
struct iwl_spectrum_cmd {
|
|
__le16 len; /* number of bytes starting from token */
|
|
u8 token; /* token id */
|
|
u8 id; /* measurement id -- 0 or 1 */
|
|
u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
|
|
u8 periodic; /* 1 = periodic */
|
|
__le16 path_loss_timeout;
|
|
__le32 start_time; /* start time in extended beacon format */
|
|
__le32 reserved2;
|
|
__le32 flags; /* rxon flags */
|
|
__le32 filter_flags; /* rxon filter flags */
|
|
__le16 channel_count; /* minimum 1, maximum 10 */
|
|
__le16 reserved3;
|
|
struct iwl_measure_channel channels[10];
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
|
|
*/
|
|
struct iwl_spectrum_resp {
|
|
u8 token;
|
|
u8 id; /* id of the prior command replaced, or 0xff */
|
|
__le16 status; /* 0 - command will be handled
|
|
* 1 - cannot handle (conflicts with another
|
|
* measurement) */
|
|
} __attribute__ ((packed));
|
|
|
|
enum iwl_measurement_state {
|
|
IWL_MEASUREMENT_START = 0,
|
|
IWL_MEASUREMENT_STOP = 1,
|
|
};
|
|
|
|
enum iwl_measurement_status {
|
|
IWL_MEASUREMENT_OK = 0,
|
|
IWL_MEASUREMENT_CONCURRENT = 1,
|
|
IWL_MEASUREMENT_CSA_CONFLICT = 2,
|
|
IWL_MEASUREMENT_TGH_CONFLICT = 3,
|
|
/* 4-5 reserved */
|
|
IWL_MEASUREMENT_STOPPED = 6,
|
|
IWL_MEASUREMENT_TIMEOUT = 7,
|
|
IWL_MEASUREMENT_PERIODIC_FAILED = 8,
|
|
};
|
|
|
|
#define NUM_ELEMENTS_IN_HISTOGRAM 8
|
|
|
|
struct iwl_measurement_histogram {
|
|
__le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
|
|
__le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
|
|
} __attribute__ ((packed));
|
|
|
|
/* clear channel availability counters */
|
|
struct iwl_measurement_cca_counters {
|
|
__le32 ofdm;
|
|
__le32 cck;
|
|
} __attribute__ ((packed));
|
|
|
|
enum iwl_measure_type {
|
|
IWL_MEASURE_BASIC = (1 << 0),
|
|
IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
|
|
IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
|
|
IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
|
|
IWL_MEASURE_FRAME = (1 << 4),
|
|
/* bits 5:6 are reserved */
|
|
IWL_MEASURE_IDLE = (1 << 7),
|
|
};
|
|
|
|
/*
|
|
* SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
|
|
*/
|
|
struct iwl_spectrum_notification {
|
|
u8 id; /* measurement id -- 0 or 1 */
|
|
u8 token;
|
|
u8 channel_index; /* index in measurement channel list */
|
|
u8 state; /* 0 - start, 1 - stop */
|
|
__le32 start_time; /* lower 32-bits of TSF */
|
|
u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
|
|
u8 channel;
|
|
u8 type; /* see enum iwl_measurement_type */
|
|
u8 reserved1;
|
|
/* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
|
|
* valid if applicable for measurement type requested. */
|
|
__le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
|
|
__le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
|
|
__le32 cca_time; /* channel load time in usecs */
|
|
u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
|
|
* unidentified */
|
|
u8 reserved2[3];
|
|
struct iwl_measurement_histogram histogram;
|
|
__le32 stop_time; /* lower 32-bits of TSF */
|
|
__le32 status; /* see iwl_measurement_status */
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (7)
|
|
* Power Management Commands, Responses, Notifications:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* struct iwl_powertable_cmd - Power Table Command
|
|
* @flags: See below:
|
|
*
|
|
* POWER_TABLE_CMD = 0x77 (command, has simple generic response)
|
|
*
|
|
* PM allow:
|
|
* bit 0 - '0' Driver not allow power management
|
|
* '1' Driver allow PM (use rest of parameters)
|
|
* uCode send sleep notifications:
|
|
* bit 1 - '0' Don't send sleep notification
|
|
* '1' send sleep notification (SEND_PM_NOTIFICATION)
|
|
* Sleep over DTIM
|
|
* bit 2 - '0' PM have to walk up every DTIM
|
|
* '1' PM could sleep over DTIM till listen Interval.
|
|
* PCI power managed
|
|
* bit 3 - '0' (PCI_LINK_CTRL & 0x1)
|
|
* '1' !(PCI_LINK_CTRL & 0x1)
|
|
* Force sleep Modes
|
|
* bit 31/30- '00' use both mac/xtal sleeps
|
|
* '01' force Mac sleep
|
|
* '10' force xtal sleep
|
|
* '11' Illegal set
|
|
*
|
|
* NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
|
|
* ucode assume sleep over DTIM is allowed and we don't need to wakeup
|
|
* for every DTIM.
|
|
*/
|
|
#define IWL_POWER_VEC_SIZE 5
|
|
|
|
|
|
#if IWL == 3945
|
|
|
|
#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le32(1<<0)
|
|
#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le32(1<<2)
|
|
#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le32(1<<3)
|
|
struct iwl_powertable_cmd {
|
|
__le32 flags;
|
|
__le32 rx_data_timeout;
|
|
__le32 tx_data_timeout;
|
|
__le32 sleep_interval[IWL_POWER_VEC_SIZE];
|
|
} __attribute__((packed));
|
|
|
|
#elif IWL == 4965
|
|
|
|
#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1<<0)
|
|
#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1<<2)
|
|
#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1<<3)
|
|
|
|
struct iwl_powertable_cmd {
|
|
__le16 flags;
|
|
u8 keep_alive_seconds;
|
|
u8 debug_flags;
|
|
__le32 rx_data_timeout;
|
|
__le32 tx_data_timeout;
|
|
__le32 sleep_interval[IWL_POWER_VEC_SIZE];
|
|
__le32 keep_alive_beacons;
|
|
} __attribute__ ((packed));
|
|
#endif
|
|
|
|
/*
|
|
* PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
|
|
* 3945 and 4965 identical.
|
|
*/
|
|
struct iwl_sleep_notification {
|
|
u8 pm_sleep_mode;
|
|
u8 pm_wakeup_src;
|
|
__le16 reserved;
|
|
__le32 sleep_time;
|
|
__le32 tsf_low;
|
|
__le32 bcon_timer;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Sleep states. 3945 and 4965 identical. */
|
|
enum {
|
|
IWL_PM_NO_SLEEP = 0,
|
|
IWL_PM_SLP_MAC = 1,
|
|
IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
|
|
IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
|
|
IWL_PM_SLP_PHY = 4,
|
|
IWL_PM_SLP_REPENT = 5,
|
|
IWL_PM_WAKEUP_BY_TIMER = 6,
|
|
IWL_PM_WAKEUP_BY_DRIVER = 7,
|
|
IWL_PM_WAKEUP_BY_RFKILL = 8,
|
|
/* 3 reserved */
|
|
IWL_PM_NUM_OF_MODES = 12,
|
|
};
|
|
|
|
/*
|
|
* REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
|
|
*/
|
|
#define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
|
|
#define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
|
|
#define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
|
|
struct iwl_card_state_cmd {
|
|
__le32 status; /* CARD_STATE_CMD_* request new power state */
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
|
|
*/
|
|
struct iwl_card_state_notif {
|
|
__le32 flags;
|
|
} __attribute__ ((packed));
|
|
|
|
#define HW_CARD_DISABLED 0x01
|
|
#define SW_CARD_DISABLED 0x02
|
|
#define RF_CARD_DISABLED 0x04
|
|
#define RXON_CARD_DISABLED 0x10
|
|
|
|
struct iwl_ct_kill_config {
|
|
__le32 reserved;
|
|
__le32 critical_temperature_M;
|
|
__le32 critical_temperature_R;
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (8)
|
|
* Scan Commands, Responses, Notifications:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
struct iwl_scan_channel {
|
|
/* type is defined as:
|
|
* 0:0 active (0 - passive)
|
|
* 1:4 SSID direct
|
|
* If 1 is set then corresponding SSID IE is transmitted in probe
|
|
* 5:7 reserved
|
|
*/
|
|
u8 type;
|
|
u8 channel;
|
|
struct iwl_tx_power tpc;
|
|
__le16 active_dwell;
|
|
__le16 passive_dwell;
|
|
} __attribute__ ((packed));
|
|
|
|
struct iwl_ssid_ie {
|
|
u8 id;
|
|
u8 len;
|
|
u8 ssid[32];
|
|
} __attribute__ ((packed));
|
|
|
|
#define PROBE_OPTION_MAX 0x4
|
|
#define TX_CMD_LIFE_TIME_INFINITE __constant_cpu_to_le32(0xFFFFFFFF)
|
|
#define IWL_GOOD_CRC_TH __constant_cpu_to_le16(1)
|
|
#define IWL_MAX_SCAN_SIZE 1024
|
|
|
|
/*
|
|
* REPLY_SCAN_CMD = 0x80 (command)
|
|
*/
|
|
struct iwl_scan_cmd {
|
|
__le16 len;
|
|
u8 reserved0;
|
|
u8 channel_count;
|
|
__le16 quiet_time; /* dwell only this long on quiet chnl
|
|
* (active scan) */
|
|
__le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
|
|
__le16 good_CRC_th; /* passive -> active promotion threshold */
|
|
#if IWL == 3945
|
|
__le16 reserved1;
|
|
#elif IWL == 4965
|
|
__le16 rx_chain;
|
|
#endif
|
|
__le32 max_out_time; /* max usec to be out of associated (service)
|
|
* chnl */
|
|
__le32 suspend_time; /* pause scan this long when returning to svc
|
|
* chnl.
|
|
* 3945 -- 31:24 # beacons, 19:0 additional usec,
|
|
* 4965 -- 31:22 # beacons, 21:0 additional usec.
|
|
*/
|
|
__le32 flags;
|
|
__le32 filter_flags;
|
|
|
|
struct iwl_tx_cmd tx_cmd;
|
|
struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
|
|
|
|
u8 data[0];
|
|
/*
|
|
* The channels start after the probe request payload and are of type:
|
|
*
|
|
* struct iwl_scan_channel channels[0];
|
|
*
|
|
* NOTE: Only one band of channels can be scanned per pass. You
|
|
* can not mix 2.4GHz channels and 5.2GHz channels and must
|
|
* request a scan multiple times (not concurrently)
|
|
*
|
|
*/
|
|
} __attribute__ ((packed));
|
|
|
|
/* Can abort will notify by complete notification with abort status. */
|
|
#define CAN_ABORT_STATUS __constant_cpu_to_le32(0x1)
|
|
/* complete notification statuses */
|
|
#define ABORT_STATUS 0x2
|
|
|
|
/*
|
|
* REPLY_SCAN_CMD = 0x80 (response)
|
|
*/
|
|
struct iwl_scanreq_notification {
|
|
__le32 status; /* 1: okay, 2: cannot fulfill request */
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
|
|
*/
|
|
struct iwl_scanstart_notification {
|
|
__le32 tsf_low;
|
|
__le32 tsf_high;
|
|
__le32 beacon_timer;
|
|
u8 channel;
|
|
u8 band;
|
|
u8 reserved[2];
|
|
__le32 status;
|
|
} __attribute__ ((packed));
|
|
|
|
#define SCAN_OWNER_STATUS 0x1;
|
|
#define MEASURE_OWNER_STATUS 0x2;
|
|
|
|
#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
|
|
/*
|
|
* SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
|
|
*/
|
|
struct iwl_scanresults_notification {
|
|
u8 channel;
|
|
u8 band;
|
|
u8 reserved[2];
|
|
__le32 tsf_low;
|
|
__le32 tsf_high;
|
|
__le32 statistics[NUMBER_OF_STATISTICS];
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
|
|
*/
|
|
struct iwl_scancomplete_notification {
|
|
u8 scanned_channels;
|
|
u8 status;
|
|
u8 reserved;
|
|
u8 last_channel;
|
|
__le32 tsf_low;
|
|
__le32 tsf_high;
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
/******************************************************************************
|
|
* (9)
|
|
* IBSS/AP Commands and Notifications:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* BEACON_NOTIFICATION = 0x90 (notification only, not a command)
|
|
*/
|
|
struct iwl_beacon_notif {
|
|
struct iwl_tx_resp beacon_notify_hdr;
|
|
__le32 low_tsf;
|
|
__le32 high_tsf;
|
|
__le32 ibss_mgr_status;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_TX_BEACON = 0x91 (command, has simple generic response)
|
|
*/
|
|
struct iwl_tx_beacon_cmd {
|
|
struct iwl_tx_cmd tx;
|
|
__le16 tim_idx;
|
|
u8 tim_size;
|
|
u8 reserved1;
|
|
struct ieee80211_hdr frame[0]; /* beacon frame */
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (10)
|
|
* Statistics Commands and Notifications:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define IWL_TEMP_CONVERT 260
|
|
|
|
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
|
|
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
|
|
#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
|
|
|
|
/* Used for passing to driver number of successes and failures per rate */
|
|
struct rate_histogram {
|
|
union {
|
|
__le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
|
|
__le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
|
|
__le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
|
|
} success;
|
|
union {
|
|
__le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
|
|
__le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
|
|
__le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
|
|
} failed;
|
|
} __attribute__ ((packed));
|
|
|
|
/* statistics command response */
|
|
|
|
struct statistics_rx_phy {
|
|
__le32 ina_cnt;
|
|
__le32 fina_cnt;
|
|
__le32 plcp_err;
|
|
__le32 crc32_err;
|
|
__le32 overrun_err;
|
|
__le32 early_overrun_err;
|
|
__le32 crc32_good;
|
|
__le32 false_alarm_cnt;
|
|
__le32 fina_sync_err_cnt;
|
|
__le32 sfd_timeout;
|
|
__le32 fina_timeout;
|
|
__le32 unresponded_rts;
|
|
__le32 rxe_frame_limit_overrun;
|
|
__le32 sent_ack_cnt;
|
|
__le32 sent_cts_cnt;
|
|
#if IWL == 4965
|
|
__le32 sent_ba_rsp_cnt;
|
|
__le32 dsp_self_kill;
|
|
__le32 mh_format_err;
|
|
__le32 re_acq_main_rssi_sum;
|
|
__le32 reserved3;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
#if IWL == 4965
|
|
struct statistics_rx_ht_phy {
|
|
__le32 plcp_err;
|
|
__le32 overrun_err;
|
|
__le32 early_overrun_err;
|
|
__le32 crc32_good;
|
|
__le32 crc32_err;
|
|
__le32 mh_format_err;
|
|
__le32 agg_crc32_good;
|
|
__le32 agg_mpdu_cnt;
|
|
__le32 agg_cnt;
|
|
__le32 reserved2;
|
|
} __attribute__ ((packed));
|
|
#endif
|
|
|
|
struct statistics_rx_non_phy {
|
|
__le32 bogus_cts; /* CTS received when not expecting CTS */
|
|
__le32 bogus_ack; /* ACK received when not expecting ACK */
|
|
__le32 non_bssid_frames; /* number of frames with BSSID that
|
|
* doesn't belong to the STA BSSID */
|
|
__le32 filtered_frames; /* count frames that were dumped in the
|
|
* filtering process */
|
|
__le32 non_channel_beacons; /* beacons with our bss id but not on
|
|
* our serving channel */
|
|
#if IWL == 4965
|
|
__le32 channel_beacons; /* beacons with our bss id and in our
|
|
* serving channel */
|
|
__le32 num_missed_bcon; /* number of missed beacons */
|
|
__le32 adc_rx_saturation_time; /* count in 0.8us units the time the
|
|
* ADC was in saturation */
|
|
__le32 ina_detection_search_time;/* total time (in 0.8us) searched
|
|
* for INA */
|
|
__le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
|
|
__le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
|
|
__le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
|
|
__le32 interference_data_flag; /* flag for interference data
|
|
* availability. 1 when data is
|
|
* available. */
|
|
__le32 channel_load; /* counts RX Enable time */
|
|
__le32 dsp_false_alarms; /* DSP false alarm (both OFDM
|
|
* and CCK) counter */
|
|
__le32 beacon_rssi_a;
|
|
__le32 beacon_rssi_b;
|
|
__le32 beacon_rssi_c;
|
|
__le32 beacon_energy_a;
|
|
__le32 beacon_energy_b;
|
|
__le32 beacon_energy_c;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
struct statistics_rx {
|
|
struct statistics_rx_phy ofdm;
|
|
struct statistics_rx_phy cck;
|
|
struct statistics_rx_non_phy general;
|
|
#if IWL == 4965
|
|
struct statistics_rx_ht_phy ofdm_ht;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
#if IWL == 4965
|
|
struct statistics_tx_non_phy_agg {
|
|
__le32 ba_timeout;
|
|
__le32 ba_reschedule_frames;
|
|
__le32 scd_query_agg_frame_cnt;
|
|
__le32 scd_query_no_agg;
|
|
__le32 scd_query_agg;
|
|
__le32 scd_query_mismatch;
|
|
__le32 frame_not_ready;
|
|
__le32 underrun;
|
|
__le32 bt_prio_kill;
|
|
__le32 rx_ba_rsp_cnt;
|
|
__le32 reserved2;
|
|
__le32 reserved3;
|
|
} __attribute__ ((packed));
|
|
#endif
|
|
|
|
struct statistics_tx {
|
|
__le32 preamble_cnt;
|
|
__le32 rx_detected_cnt;
|
|
__le32 bt_prio_defer_cnt;
|
|
__le32 bt_prio_kill_cnt;
|
|
__le32 few_bytes_cnt;
|
|
__le32 cts_timeout;
|
|
__le32 ack_timeout;
|
|
__le32 expected_ack_cnt;
|
|
__le32 actual_ack_cnt;
|
|
#if IWL == 4965
|
|
__le32 dump_msdu_cnt;
|
|
__le32 burst_abort_next_frame_mismatch_cnt;
|
|
__le32 burst_abort_missing_next_frame_cnt;
|
|
__le32 cts_timeout_collision;
|
|
__le32 ack_or_ba_timeout_collision;
|
|
struct statistics_tx_non_phy_agg agg;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
struct statistics_dbg {
|
|
__le32 burst_check;
|
|
__le32 burst_count;
|
|
__le32 reserved[4];
|
|
} __attribute__ ((packed));
|
|
|
|
struct statistics_div {
|
|
__le32 tx_on_a;
|
|
__le32 tx_on_b;
|
|
__le32 exec_time;
|
|
__le32 probe_time;
|
|
#if IWL == 4965
|
|
__le32 reserved1;
|
|
__le32 reserved2;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
struct statistics_general {
|
|
__le32 temperature;
|
|
#if IWL == 4965
|
|
__le32 temperature_m;
|
|
#endif
|
|
struct statistics_dbg dbg;
|
|
__le32 sleep_time;
|
|
__le32 slots_out;
|
|
__le32 slots_idle;
|
|
__le32 ttl_timestamp;
|
|
struct statistics_div div;
|
|
#if IWL == 4965
|
|
__le32 rx_enable_counter;
|
|
__le32 reserved1;
|
|
__le32 reserved2;
|
|
__le32 reserved3;
|
|
#endif
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* REPLY_STATISTICS_CMD = 0x9c,
|
|
* 3945 and 4965 identical.
|
|
*
|
|
* This command triggers an immediate response containing uCode statistics.
|
|
* The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
|
|
*
|
|
* If the CLEAR_STATS configuration flag is set, uCode will clear its
|
|
* internal copy of the statistics (counters) after issuing the response.
|
|
* This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
|
|
*
|
|
* If the DISABLE_NOTIF configuration flag is set, uCode will not issue
|
|
* STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
|
|
* does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
|
|
*/
|
|
#define IWL_STATS_CONF_CLEAR_STATS __constant_cpu_to_le32(0x1) /* see above */
|
|
#define IWL_STATS_CONF_DISABLE_NOTIF __constant_cpu_to_le32(0x2)/* see above */
|
|
struct iwl_statistics_cmd {
|
|
__le32 configuration_flags; /* IWL_STATS_CONF_* */
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
|
|
*
|
|
* By default, uCode issues this notification after receiving a beacon
|
|
* while associated. To disable this behavior, set DISABLE_NOTIF flag in the
|
|
* REPLY_STATISTICS_CMD 0x9c, above.
|
|
*
|
|
* Statistics counters continue to increment beacon after beacon, but are
|
|
* cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
|
|
* 0x9c with CLEAR_STATS bit set (see above).
|
|
*
|
|
* uCode also issues this notification during scans. uCode clears statistics
|
|
* appropriately so that each notification contains statistics for only the
|
|
* one channel that has just been scanned.
|
|
*/
|
|
#define STATISTICS_REPLY_FLG_BAND_24G_MSK __constant_cpu_to_le32(0x2)
|
|
#define STATISTICS_REPLY_FLG_FAT_MODE_MSK __constant_cpu_to_le32(0x8)
|
|
struct iwl_notif_statistics {
|
|
__le32 flag;
|
|
struct statistics_rx rx;
|
|
struct statistics_tx tx;
|
|
struct statistics_general general;
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
/*
|
|
* MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
|
|
*/
|
|
/* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
|
|
* then this notification will be sent. */
|
|
#define CONSECUTIVE_MISSED_BCONS_TH 20
|
|
|
|
struct iwl_missed_beacon_notif {
|
|
__le32 consequtive_missed_beacons;
|
|
__le32 total_missed_becons;
|
|
__le32 num_expected_beacons;
|
|
__le32 num_recvd_beacons;
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (11)
|
|
* Rx Calibration Commands:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define PHY_CALIBRATE_DIFF_GAIN_CMD (7)
|
|
#define HD_TABLE_SIZE (11)
|
|
|
|
struct iwl_sensitivity_cmd {
|
|
__le16 control;
|
|
__le16 table[HD_TABLE_SIZE];
|
|
} __attribute__ ((packed));
|
|
|
|
struct iwl_calibration_cmd {
|
|
u8 opCode;
|
|
u8 flags;
|
|
__le16 reserved;
|
|
s8 diff_gain_a;
|
|
s8 diff_gain_b;
|
|
s8 diff_gain_c;
|
|
u8 reserved1;
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (12)
|
|
* Miscellaneous Commands:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* LEDs Command & Response
|
|
* REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
|
|
*
|
|
* For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
|
|
* this command turns it on or off, or sets up a periodic blinking cycle.
|
|
*/
|
|
struct iwl_led_cmd {
|
|
__le32 interval; /* "interval" in uSec */
|
|
u8 id; /* 1: Activity, 2: Link, 3: Tech */
|
|
u8 off; /* # intervals off while blinking;
|
|
* "0", with >0 "on" value, turns LED on */
|
|
u8 on; /* # intervals on while blinking;
|
|
* "0", regardless of "off", turns LED off */
|
|
u8 reserved;
|
|
} __attribute__ ((packed));
|
|
|
|
/******************************************************************************
|
|
* (13)
|
|
* Union of all expected notifications/responses:
|
|
*
|
|
*****************************************************************************/
|
|
|
|
struct iwl_rx_packet {
|
|
__le32 len;
|
|
struct iwl_cmd_header hdr;
|
|
union {
|
|
struct iwl_alive_resp alive_frame;
|
|
struct iwl_rx_frame rx_frame;
|
|
struct iwl_tx_resp tx_resp;
|
|
struct iwl_spectrum_notification spectrum_notif;
|
|
struct iwl_csa_notification csa_notif;
|
|
struct iwl_error_resp err_resp;
|
|
struct iwl_card_state_notif card_state_notif;
|
|
struct iwl_beacon_notif beacon_status;
|
|
struct iwl_add_sta_resp add_sta;
|
|
struct iwl_sleep_notification sleep_notif;
|
|
struct iwl_spectrum_resp spectrum;
|
|
struct iwl_notif_statistics stats;
|
|
#if IWL == 4965
|
|
struct iwl_compressed_ba_resp compressed_ba;
|
|
struct iwl_missed_beacon_notif missed_beacon;
|
|
#endif
|
|
__le32 status;
|
|
u8 raw[0];
|
|
} u;
|
|
} __attribute__ ((packed));
|
|
|
|
#define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl_rx_frame))
|
|
|
|
#endif /* __iwl_commands_h__ */
|