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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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* Copyright(c) 2005 - 2009 Intel Corporation. All rights reserved.
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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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* 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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* 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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* 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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* 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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* Copyright(c) 2005 - 2009 Intel Corporation. All rights reserved.
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* All rights reserved.
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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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* * 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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* * 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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* 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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* Please use this file (iwl-commands.h) only for uCode API definitions.
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* Please use iwl-4965-hw.h for hardware-related definitions.
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* Please use iwl-dev.h for driver implementation definitions.
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#ifndef __iwl_commands_h__
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#define __iwl_commands_h__
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/* uCode version contains 4 values: Major/Minor/API/Serial */
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#define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24)
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#define IWL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16)
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#define IWL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8)
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#define IWL_UCODE_SERIAL(ver) ((ver) & 0x000000FF)
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#define IWL_CCK_RATES 4
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#define IWL_OFDM_RATES 8
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#define IWL_MAX_RATES (IWL_CCK_RATES + IWL_OFDM_RATES)
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/* RXON and QOS commands */
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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_REMOVE_STA = 0x19, /* not used */
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REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
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REPLY_3945_RX = 0x1b, /* 3945 only */
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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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/* WiMAX coexistence */
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COEX_PRIORITY_TABLE_CMD = 0x5a, /* for 5000 series and up */
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COEX_MEDIUM_NOTIFICATION = 0x5b,
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COEX_EVENT_CMD = 0x5c,
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TEMPERATURE_NOTIFICATION = 0x62,
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CALIBRATION_CFG_CMD = 0x65,
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CALIBRATION_RES_NOTIFICATION = 0x66,
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CALIBRATION_COMPLETE_NOTIFICATION = 0x67,
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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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REPLY_TX_POWER_DBM_CMD = 0x95,
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QUIET_NOTIFICATION = 0x96, /* not used */
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REPLY_TX_PWR_TABLE_CMD = 0x97,
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REPLY_TX_POWER_DBM_CMD_V1 = 0x98, /* old version of API */
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TX_ANT_CONFIGURATION_CMD = 0x98,
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MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
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/* Bluetooth device coexistence config command */
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REPLY_BT_CONFIG = 0x9b,
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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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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_COMPRESSED_BA = 0xc5,
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/******************************************************************************
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* Commonly used structures and definitions:
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* Command header, rate_n_flags, txpower
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*****************************************************************************/
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/* iwl_cmd_header flags value */
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#define IWL_CMD_FAILED_MSK 0x40
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#define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f)
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#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
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#define SEQ_TO_INDEX(s) ((s) & 0xff)
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#define INDEX_TO_SEQ(i) ((i) & 0xff)
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#define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
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#define SEQ_RX_FRAME cpu_to_le16(0x8000)
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* struct iwl_cmd_header
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* This header format appears in the beginning of each command sent from the
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* driver, and each response/notification received from uCode.
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struct iwl_cmd_header {
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u8 cmd; /* Command ID: REPLY_RXON, etc. */
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u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
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* The driver sets up the sequence number to values of its choosing.
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* uCode does not use this value, but passes it back to the driver
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* when sending the response to each driver-originated command, so
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* the driver can match the response to the command. Since the values
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* don't get used by uCode, the driver may set up an arbitrary format.
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* There is one exception: uCode sets bit 15 when it originates
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* the response/notification, i.e. when the response/notification
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* is not a direct response to a command sent by the driver. For
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* example, uCode issues REPLY_3945_RX when it sends a received frame
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* to the driver; it is not a direct response to any driver command.
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* The Linux driver uses the following format:
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* 0:7 tfd index - position within TX queue
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* 14 huge - driver sets this to indicate command is in the
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* 'huge' storage at the end of the command buffers
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* 15 unsolicited RX or uCode-originated notification
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/* command or response/notification data follows immediately */
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} __attribute__ ((packed));
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* struct iwl3945_tx_power
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* Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH
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* Each entry contains two values:
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* 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
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* linear value that multiplies the output of the digital signal processor,
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* before being sent to the analog radio.
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* 2) Radio gain. This sets the analog gain of the radio Tx path.
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* It is a coarser setting, and behaves in a logarithmic (dB) fashion.
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* Driver obtains values from struct iwl3945_tx_power power_gain_table[][].
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struct iwl3945_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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* struct iwl3945_power_per_rate
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* Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
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struct iwl3945_power_per_rate {
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struct iwl3945_tx_power tpc;
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} __attribute__ ((packed));
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* iwlagn rate_n_flags bit fields
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* rate_n_flags format is used in following iwlagn commands:
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* REPLY_RX (response only)
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* REPLY_RX_MPDU (response only)
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* REPLY_TX (both command and response)
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* REPLY_TX_LINK_QUALITY_CMD
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* High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
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* 4-3: 0) Single stream (SISO)
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* 1) Dual stream (MIMO)
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* 2) Triple stream (MIMO)
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* 5: Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data
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* Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
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* Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"):
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#define RATE_MCS_CODE_MSK 0x7
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#define RATE_MCS_SPATIAL_POS 3
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#define RATE_MCS_SPATIAL_MSK 0x18
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#define RATE_MCS_HT_DUP_POS 5
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#define RATE_MCS_HT_DUP_MSK 0x20
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/* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */
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#define RATE_MCS_FLAGS_POS 8
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#define RATE_MCS_HT_POS 8
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#define RATE_MCS_HT_MSK 0x100
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/* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
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#define RATE_MCS_CCK_POS 9
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#define RATE_MCS_CCK_MSK 0x200
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/* Bit 10: (1) Use Green Field preamble */
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#define RATE_MCS_GF_POS 10
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#define RATE_MCS_GF_MSK 0x400
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/* Bit 11: (1) Use 40Mhz HT40 chnl width, (0) use 20 MHz legacy chnl width */
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#define RATE_MCS_HT40_POS 11
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#define RATE_MCS_HT40_MSK 0x800
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/* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (bit 11) must be set. */
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#define RATE_MCS_DUP_POS 12
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#define RATE_MCS_DUP_MSK 0x1000
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/* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
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#define RATE_MCS_SGI_POS 13
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#define RATE_MCS_SGI_MSK 0x2000
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* rate_n_flags Tx antenna masks
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* 4965 has 2 transmitters
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* 5100 has 1 transmitter B
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* 5150 has 1 transmitter A
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* 5300 has 3 transmitters
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* 5350 has 3 transmitters
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#define RATE_MCS_ANT_POS 14
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#define RATE_MCS_ANT_A_MSK 0x04000
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#define RATE_MCS_ANT_B_MSK 0x08000
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#define RATE_MCS_ANT_C_MSK 0x10000
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#define RATE_MCS_ANT_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK)
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#define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK)
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#define RATE_ANT_NUM 3
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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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#define IWL_PWR_NUM_HT_OFDM_ENTRIES 24
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#define IWL_PWR_CCK_ENTRIES 2
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* union iwl4965_tx_power_dual_stream
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* Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
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* Use __le32 version (struct tx_power_dual_stream) when building command.
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* Driver provides radio gain and DSP attenuation settings to device in pairs,
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* one value for each transmitter chain. The first value is for transmitter A,
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* second for transmitter B.
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* For SISO bit rates, both values in a pair should be identical.
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* For MIMO rates, one value may be different from the other,
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* in order to balance the Tx output between the two transmitters.
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* See more details in doc for TXPOWER in iwl-4965-hw.h.
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union iwl4965_tx_power_dual_stream {
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u8 dsp_predis_atten[2];
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* struct tx_power_dual_stream
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* Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
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* Same format as iwl_tx_power_dual_stream, but __le32
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struct tx_power_dual_stream {
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} __attribute__ ((packed));
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* struct iwl4965_tx_power_db
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* Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
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struct iwl4965_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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* Command REPLY_TX_POWER_DBM_CMD = 0x98
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* struct iwl5000_tx_power_dbm_cmd
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#define IWL50_TX_POWER_AUTO 0x7f
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#define IWL50_TX_POWER_NO_CLOSED (0x1 << 6)
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struct iwl5000_tx_power_dbm_cmd {
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s8 global_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
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s8 srv_chan_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
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} __attribute__ ((packed));
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* Command TX_ANT_CONFIGURATION_CMD = 0x98
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* This command is used to configure valid Tx antenna.
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* By default uCode concludes the valid antenna according to the radio flavor.
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* This command enables the driver to override/modify this conclusion.
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struct iwl_tx_ant_config_cmd {
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} __attribute__ ((packed));
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/******************************************************************************
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* Alive and Error Commands & Responses:
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*****************************************************************************/
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#define UCODE_VALID_OK cpu_to_le32(0x1)
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#define INITIALIZE_SUBTYPE (9)
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* ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
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* uCode issues this "initialize alive" notification once the initialization
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* uCode image has completed its work, and is ready to load the runtime image.
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* This is the *first* "alive" notification that the driver will receive after
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* rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
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* See comments documenting "BSM" (bootstrap state machine).
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* For 4965, this notification contains important calibration data for
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* calculating txpower settings:
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* 1) Power supply voltage indication. The voltage sensor outputs higher
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* values for lower voltage, and vice verse.
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* 2) Temperature measurement parameters, for each of two channel widths
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* (20 MHz and 40 MHz) supported by the radios. Temperature sensing
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* is done via one of the receiver chains, and channel width influences
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* 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
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* for each of 5 frequency ranges.
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struct iwl_init_alive_resp {
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u8 ver_subtype; /* "9" for initialize alive */
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__le32 log_event_table_ptr;
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__le32 error_event_table_ptr;
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/* calibration values from "initialize" uCode */
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__le32 voltage; /* signed, higher value is lower voltage */
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__le32 therm_r1[2]; /* signed, 1st for normal, 2nd for HT40 */
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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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} __attribute__ ((packed));
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* REPLY_ALIVE = 0x1 (response only, not a command)
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* uCode issues this "alive" notification once the runtime image is ready
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* to receive commands from the driver. This is the *second* "alive"
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* notification that the driver will receive after rebooting uCode;
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* this "alive" is indicated by subtype field != 9.
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* See comments documenting "BSM" (bootstrap state machine).
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* This response includes two pointers to structures within the device's
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* data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
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* 1) log_event_table_ptr indicates base of the event log. This traces
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* a 256-entry history of uCode execution within a circular buffer.
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* Its header format is:
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* __le32 log_size; log capacity (in number of entries)
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* __le32 type; (1) timestamp with each entry, (0) no timestamp
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* __le32 wraps; # times uCode has wrapped to top of circular buffer
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* __le32 write_index; next circular buffer entry that uCode would fill
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* The header is followed by the circular buffer of log entries. Entries
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* with timestamps have the following format:
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* __le32 event_id; range 0 - 1500
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* __le32 timestamp; low 32 bits of TSF (of network, if associated)
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* __le32 data; event_id-specific data value
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* Entries without timestamps contain only event_id and data.
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* 2) error_event_table_ptr indicates base of the error log. This contains
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* information about any uCode error that occurs. For 4965, the format
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* of the error log is:
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* __le32 valid; (nonzero) valid, (0) log is empty
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* __le32 error_id; type of error
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* __le32 pc; program counter
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* __le32 blink1; branch link
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* __le32 blink2; branch link
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* __le32 ilink1; interrupt link
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* __le32 ilink2; interrupt link
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* __le32 data1; error-specific data
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* __le32 data2; error-specific data
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* __le32 line; source code line of error
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* __le32 bcon_time; beacon timer
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* __le32 tsf_low; network timestamp function timer
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* __le32 tsf_hi; network timestamp function timer
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* The Linux driver can print both logs to the system log when a uCode error
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struct iwl_alive_resp {
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u8 ver_subtype; /* not "9" for runtime alive */
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__le32 log_event_table_ptr; /* SRAM address for event log */
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__le32 error_event_table_ptr; /* SRAM address for error log */
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} __attribute__ ((packed));
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* REPLY_ERROR = 0x2 (response only, not a command)
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struct iwl_error_resp {
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__le16 bad_cmd_seq_num;
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} __attribute__ ((packed));
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/******************************************************************************
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* RXON Commands & Responses:
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*****************************************************************************/
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* Rx config defines & structure
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/* rx_config device types */
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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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#define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0)
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#define RXON_RX_CHAIN_DRIVER_FORCE_POS (0)
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#define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1)
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#define RXON_RX_CHAIN_VALID_POS (1)
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#define RXON_RX_CHAIN_FORCE_SEL_MSK cpu_to_le16(0x7 << 4)
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#define RXON_RX_CHAIN_FORCE_SEL_POS (4)
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#define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK cpu_to_le16(0x7 << 7)
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#define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
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#define RXON_RX_CHAIN_CNT_MSK cpu_to_le16(0x3 << 10)
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#define RXON_RX_CHAIN_CNT_POS (10)
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#define RXON_RX_CHAIN_MIMO_CNT_MSK cpu_to_le16(0x3 << 12)
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#define RXON_RX_CHAIN_MIMO_CNT_POS (12)
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#define RXON_RX_CHAIN_MIMO_FORCE_MSK cpu_to_le16(0x1 << 14)
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#define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
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/* rx_config flags */
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/* band & modulation selection */
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#define RXON_FLG_BAND_24G_MSK cpu_to_le32(1 << 0)
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#define RXON_FLG_CCK_MSK cpu_to_le32(1 << 1)
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/* auto detection enable */
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#define RXON_FLG_AUTO_DETECT_MSK cpu_to_le32(1 << 2)
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/* TGg protection when tx */
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#define RXON_FLG_TGG_PROTECT_MSK cpu_to_le32(1 << 3)
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/* cck short slot & preamble */
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#define RXON_FLG_SHORT_SLOT_MSK cpu_to_le32(1 << 4)
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#define RXON_FLG_SHORT_PREAMBLE_MSK cpu_to_le32(1 << 5)
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/* antenna selection */
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#define RXON_FLG_DIS_DIV_MSK cpu_to_le32(1 << 7)
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#define RXON_FLG_ANT_SEL_MSK cpu_to_le32(0x0f00)
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#define RXON_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
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#define RXON_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
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/* radar detection enable */
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#define RXON_FLG_RADAR_DETECT_MSK cpu_to_le32(1 << 12)
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#define RXON_FLG_TGJ_NARROW_BAND_MSK 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 cpu_to_le32(1 << 15)
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#define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
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#define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22)
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#define RXON_FLG_HT_OPERATING_MODE_POS (23)
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#define RXON_FLG_HT_PROT_MSK cpu_to_le32(0x1 << 23)
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#define RXON_FLG_HT40_PROT_MSK cpu_to_le32(0x2 << 23)
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#define RXON_FLG_CHANNEL_MODE_POS (25)
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#define RXON_FLG_CHANNEL_MODE_MSK cpu_to_le32(0x3 << 25)
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CHANNEL_MODE_LEGACY = 0,
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CHANNEL_MODE_PURE_40 = 1,
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CHANNEL_MODE_MIXED = 2,
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CHANNEL_MODE_RESERVED = 3,
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#define RXON_FLG_CHANNEL_MODE_LEGACY cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS)
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#define RXON_FLG_CHANNEL_MODE_PURE_40 cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS)
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#define RXON_FLG_CHANNEL_MODE_MIXED cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS)
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/* CTS to self (if spec allows) flag */
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#define RXON_FLG_SELF_CTS_EN cpu_to_le32(0x1<<30)
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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 cpu_to_le32(1 << 0)
649
/* pass control & management to host */
650
#define RXON_FILTER_CTL2HOST_MSK cpu_to_le32(1 << 1)
651
/* accept multi-cast */
652
#define RXON_FILTER_ACCEPT_GRP_MSK cpu_to_le32(1 << 2)
653
/* don't decrypt uni-cast frames */
654
#define RXON_FILTER_DIS_DECRYPT_MSK cpu_to_le32(1 << 3)
655
/* don't decrypt multi-cast frames */
656
#define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4)
657
/* STA is associated */
658
#define RXON_FILTER_ASSOC_MSK cpu_to_le32(1 << 5)
659
/* transfer to host non bssid beacons in associated state */
660
#define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6)
663
* REPLY_RXON = 0x10 (command, has simple generic response)
665
* RXON tunes the radio tuner to a service channel, and sets up a number
666
* of parameters that are used primarily for Rx, but also for Tx operations.
668
* NOTE: When tuning to a new channel, driver must set the
669
* RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
670
* info within the device, including the station tables, tx retry
671
* rate tables, and txpower tables. Driver must build a new station
672
* table and txpower table before transmitting anything on the RXON
675
* NOTE: All RXONs wipe clean the internal txpower table. Driver must
676
* issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
677
* regardless of whether RXON_FILTER_ASSOC_MSK is set.
680
struct iwl3945_rxon_cmd {
685
u8 wlap_bssid_addr[6];
697
} __attribute__ ((packed));
699
struct iwl4965_rxon_cmd {
704
u8 wlap_bssid_addr[6];
715
u8 ofdm_ht_single_stream_basic_rates;
716
u8 ofdm_ht_dual_stream_basic_rates;
717
} __attribute__ ((packed));
719
/* 5000 HW just extend this command */
720
struct iwl_rxon_cmd {
725
u8 wlap_bssid_addr[6];
736
u8 ofdm_ht_single_stream_basic_rates;
737
u8 ofdm_ht_dual_stream_basic_rates;
738
u8 ofdm_ht_triple_stream_basic_rates;
740
__le16 acquisition_data;
742
} __attribute__ ((packed));
745
* REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
747
struct iwl3945_rxon_assoc_cmd {
753
} __attribute__ ((packed));
755
struct iwl4965_rxon_assoc_cmd {
760
u8 ofdm_ht_single_stream_basic_rates;
761
u8 ofdm_ht_dual_stream_basic_rates;
762
__le16 rx_chain_select_flags;
764
} __attribute__ ((packed));
766
struct iwl5000_rxon_assoc_cmd {
772
u8 ofdm_ht_single_stream_basic_rates;
773
u8 ofdm_ht_dual_stream_basic_rates;
774
u8 ofdm_ht_triple_stream_basic_rates;
776
__le16 rx_chain_select_flags;
777
__le16 acquisition_data;
779
} __attribute__ ((packed));
781
#define IWL_CONN_MAX_LISTEN_INTERVAL 10
782
#define IWL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */
783
#define IWL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */
786
* REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
788
struct iwl_rxon_time_cmd {
790
__le16 beacon_interval;
792
__le32 beacon_init_val;
793
__le16 listen_interval;
795
} __attribute__ ((packed));
798
* REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
800
struct iwl3945_channel_switch_cmd {
805
__le32 rxon_filter_flags;
807
struct iwl3945_power_per_rate power[IWL_MAX_RATES];
808
} __attribute__ ((packed));
810
struct iwl4965_channel_switch_cmd {
815
__le32 rxon_filter_flags;
817
struct iwl4965_tx_power_db tx_power;
818
} __attribute__ ((packed));
821
* struct iwl5000_channel_switch_cmd
822
* @band: 0- 5.2GHz, 1- 2.4GHz
823
* @expect_beacon: 0- resume transmits after channel switch
824
* 1- wait for beacon to resume transmits
825
* @channel: new channel number
826
* @rxon_flags: Rx on flags
827
* @rxon_filter_flags: filtering parameters
828
* @switch_time: switch time in extended beacon format
829
* @reserved: reserved bytes
831
struct iwl5000_channel_switch_cmd {
836
__le32 rxon_filter_flags;
838
__le32 reserved[2][IWL_PWR_NUM_HT_OFDM_ENTRIES + IWL_PWR_CCK_ENTRIES];
839
} __attribute__ ((packed));
842
* struct iwl6000_channel_switch_cmd
843
* @band: 0- 5.2GHz, 1- 2.4GHz
844
* @expect_beacon: 0- resume transmits after channel switch
845
* 1- wait for beacon to resume transmits
846
* @channel: new channel number
847
* @rxon_flags: Rx on flags
848
* @rxon_filter_flags: filtering parameters
849
* @switch_time: switch time in extended beacon format
850
* @reserved: reserved bytes
852
struct iwl6000_channel_switch_cmd {
857
__le32 rxon_filter_flags;
859
__le32 reserved[3][IWL_PWR_NUM_HT_OFDM_ENTRIES + IWL_PWR_CCK_ENTRIES];
860
} __attribute__ ((packed));
863
* CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
865
struct iwl_csa_notification {
868
__le32 status; /* 0 - OK, 1 - fail */
869
} __attribute__ ((packed));
871
/******************************************************************************
873
* Quality-of-Service (QOS) Commands & Responses:
875
*****************************************************************************/
878
* struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
879
* One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
881
* @cw_min: Contention window, start value in numbers of slots.
882
* Should be a power-of-2, minus 1. Device's default is 0x0f.
883
* @cw_max: Contention window, max value in numbers of slots.
884
* Should be a power-of-2, minus 1. Device's default is 0x3f.
885
* @aifsn: Number of slots in Arbitration Interframe Space (before
886
* performing random backoff timing prior to Tx). Device default 1.
887
* @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
889
* Device will automatically increase contention window by (2*CW) + 1 for each
890
* transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
891
* value, to cap the CW value.
899
} __attribute__ ((packed));
901
/* QoS flags defines */
902
#define QOS_PARAM_FLG_UPDATE_EDCA_MSK cpu_to_le32(0x01)
903
#define QOS_PARAM_FLG_TGN_MSK cpu_to_le32(0x02)
904
#define QOS_PARAM_FLG_TXOP_TYPE_MSK cpu_to_le32(0x10)
906
/* Number of Access Categories (AC) (EDCA), queues 0..3 */
910
* REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
912
* This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
913
* 0: Background, 1: Best Effort, 2: Video, 3: Voice.
915
struct iwl_qosparam_cmd {
917
struct iwl_ac_qos ac[AC_NUM];
918
} __attribute__ ((packed));
920
/******************************************************************************
922
* Add/Modify Stations Commands & Responses:
924
*****************************************************************************/
926
* Multi station support
929
/* Special, dedicated locations within device's station table */
931
#define IWL_MULTICAST_ID 1
933
#define IWL3945_BROADCAST_ID 24
934
#define IWL3945_STATION_COUNT 25
935
#define IWL4965_BROADCAST_ID 31
936
#define IWL4965_STATION_COUNT 32
937
#define IWL5000_BROADCAST_ID 15
938
#define IWL5000_STATION_COUNT 16
940
#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
941
#define IWL_INVALID_STATION 255
943
#define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2);
944
#define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8);
945
#define STA_FLG_RTS_MIMO_PROT_MSK cpu_to_le32(1 << 17)
946
#define STA_FLG_AGG_MPDU_8US_MSK cpu_to_le32(1 << 18)
947
#define STA_FLG_MAX_AGG_SIZE_POS (19)
948
#define STA_FLG_MAX_AGG_SIZE_MSK cpu_to_le32(3 << 19)
949
#define STA_FLG_HT40_EN_MSK cpu_to_le32(1 << 21)
950
#define STA_FLG_MIMO_DIS_MSK cpu_to_le32(1 << 22)
951
#define STA_FLG_AGG_MPDU_DENSITY_POS (23)
952
#define STA_FLG_AGG_MPDU_DENSITY_MSK cpu_to_le32(7 << 23)
954
/* Use in mode field. 1: modify existing entry, 0: add new station entry */
955
#define STA_CONTROL_MODIFY_MSK 0x01
957
/* key flags __le16*/
958
#define STA_KEY_FLG_ENCRYPT_MSK cpu_to_le16(0x0007)
959
#define STA_KEY_FLG_NO_ENC cpu_to_le16(0x0000)
960
#define STA_KEY_FLG_WEP cpu_to_le16(0x0001)
961
#define STA_KEY_FLG_CCMP cpu_to_le16(0x0002)
962
#define STA_KEY_FLG_TKIP cpu_to_le16(0x0003)
964
#define STA_KEY_FLG_KEYID_POS 8
965
#define STA_KEY_FLG_INVALID cpu_to_le16(0x0800)
966
/* wep key is either from global key (0) or from station info array (1) */
967
#define STA_KEY_FLG_MAP_KEY_MSK cpu_to_le16(0x0008)
969
/* wep key in STA: 5-bytes (0) or 13-bytes (1) */
970
#define STA_KEY_FLG_KEY_SIZE_MSK cpu_to_le16(0x1000)
971
#define STA_KEY_MULTICAST_MSK cpu_to_le16(0x4000)
972
#define STA_KEY_MAX_NUM 8
974
/* Flags indicate whether to modify vs. don't change various station params */
975
#define STA_MODIFY_KEY_MASK 0x01
976
#define STA_MODIFY_TID_DISABLE_TX 0x02
977
#define STA_MODIFY_TX_RATE_MSK 0x04
978
#define STA_MODIFY_ADDBA_TID_MSK 0x08
979
#define STA_MODIFY_DELBA_TID_MSK 0x10
980
#define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20
982
/* Receiver address (actually, Rx station's index into station table),
983
* combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
984
#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
986
struct iwl4965_keyinfo {
988
u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
990
__le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
993
u8 key[16]; /* 16-byte unicast decryption key */
994
} __attribute__ ((packed));
999
u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
1001
__le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
1004
u8 key[16]; /* 16-byte unicast decryption key */
1005
__le64 tx_secur_seq_cnt;
1006
__le64 hw_tkip_mic_rx_key;
1007
__le64 hw_tkip_mic_tx_key;
1008
} __attribute__ ((packed));
1011
* struct sta_id_modify
1012
* @addr[ETH_ALEN]: station's MAC address
1013
* @sta_id: index of station in uCode's station table
1014
* @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
1016
* Driver selects unused table index when adding new station,
1017
* or the index to a pre-existing station entry when modifying that station.
1018
* Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
1020
* modify_mask flags select which parameters to modify vs. leave alone.
1022
struct sta_id_modify {
1028
} __attribute__ ((packed));
1031
* REPLY_ADD_STA = 0x18 (command)
1033
* The device contains an internal table of per-station information,
1034
* with info on security keys, aggregation parameters, and Tx rates for
1035
* initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD,
1036
* 3945 uses REPLY_RATE_SCALE to set up rate tables).
1038
* REPLY_ADD_STA sets up the table entry for one station, either creating
1039
* a new entry, or modifying a pre-existing one.
1041
* NOTE: RXON command (without "associated" bit set) wipes the station table
1042
* clean. Moving into RF_KILL state does this also. Driver must set up
1043
* new station table before transmitting anything on the RXON channel
1044
* (except active scans or active measurements; those commands carry
1045
* their own txpower/rate setup data).
1047
* When getting started on a new channel, driver must set up the
1048
* IWL_BROADCAST_ID entry (last entry in the table). For a client
1049
* station in a BSS, once an AP is selected, driver sets up the AP STA
1050
* in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
1051
* are all that are needed for a BSS client station. If the device is
1052
* used as AP, or in an IBSS network, driver must set up station table
1053
* entries for all STAs in network, starting with index IWL_STA_ID.
1056
struct iwl3945_addsta_cmd {
1057
u8 mode; /* 1: modify existing, 0: add new station */
1059
struct sta_id_modify sta;
1060
struct iwl4965_keyinfo key;
1061
__le32 station_flags; /* STA_FLG_* */
1062
__le32 station_flags_msk; /* STA_FLG_* */
1064
/* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
1065
* corresponding to bit (e.g. bit 5 controls TID 5).
1066
* Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
1067
__le16 tid_disable_tx;
1069
__le16 rate_n_flags;
1071
/* TID for which to add block-ack support.
1072
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1073
u8 add_immediate_ba_tid;
1075
/* TID for which to remove block-ack support.
1076
* Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1077
u8 remove_immediate_ba_tid;
1079
/* Starting Sequence Number for added block-ack support.
1080
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1081
__le16 add_immediate_ba_ssn;
1082
} __attribute__ ((packed));
1084
struct iwl4965_addsta_cmd {
1085
u8 mode; /* 1: modify existing, 0: add new station */
1087
struct sta_id_modify sta;
1088
struct iwl4965_keyinfo key;
1089
__le32 station_flags; /* STA_FLG_* */
1090
__le32 station_flags_msk; /* STA_FLG_* */
1092
/* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
1093
* corresponding to bit (e.g. bit 5 controls TID 5).
1094
* Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
1095
__le16 tid_disable_tx;
1099
/* TID for which to add block-ack support.
1100
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1101
u8 add_immediate_ba_tid;
1103
/* TID for which to remove block-ack support.
1104
* Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1105
u8 remove_immediate_ba_tid;
1107
/* Starting Sequence Number for added block-ack support.
1108
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1109
__le16 add_immediate_ba_ssn;
1112
* Number of packets OK to transmit to station even though
1113
* it is asleep -- used to synchronise PS-poll and u-APSD
1114
* responses while ucode keeps track of STA sleep state.
1116
__le16 sleep_tx_count;
1119
} __attribute__ ((packed));
1122
struct iwl_addsta_cmd {
1123
u8 mode; /* 1: modify existing, 0: add new station */
1125
struct sta_id_modify sta;
1126
struct iwl_keyinfo key;
1127
__le32 station_flags; /* STA_FLG_* */
1128
__le32 station_flags_msk; /* STA_FLG_* */
1130
/* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
1131
* corresponding to bit (e.g. bit 5 controls TID 5).
1132
* Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
1133
__le16 tid_disable_tx;
1135
__le16 rate_n_flags; /* 3945 only */
1137
/* TID for which to add block-ack support.
1138
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1139
u8 add_immediate_ba_tid;
1141
/* TID for which to remove block-ack support.
1142
* Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
1143
u8 remove_immediate_ba_tid;
1145
/* Starting Sequence Number for added block-ack support.
1146
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
1147
__le16 add_immediate_ba_ssn;
1150
* Number of packets OK to transmit to station even though
1151
* it is asleep -- used to synchronise PS-poll and u-APSD
1152
* responses while ucode keeps track of STA sleep state.
1154
__le16 sleep_tx_count;
1157
} __attribute__ ((packed));
1160
#define ADD_STA_SUCCESS_MSK 0x1
1161
#define ADD_STA_NO_ROOM_IN_TABLE 0x2
1162
#define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
1163
#define ADD_STA_MODIFY_NON_EXIST_STA 0x8
1165
* REPLY_ADD_STA = 0x18 (response)
1167
struct iwl_add_sta_resp {
1168
u8 status; /* ADD_STA_* */
1169
} __attribute__ ((packed));
1171
#define REM_STA_SUCCESS_MSK 0x1
1173
* REPLY_REM_STA = 0x19 (response)
1175
struct iwl_rem_sta_resp {
1177
} __attribute__ ((packed));
1180
* REPLY_REM_STA = 0x19 (command)
1182
struct iwl_rem_sta_cmd {
1183
u8 num_sta; /* number of removed stations */
1185
u8 addr[ETH_ALEN]; /* MAC addr of the first station */
1187
} __attribute__ ((packed));
1190
* REPLY_WEP_KEY = 0x20
1192
struct iwl_wep_key {
1199
} __attribute__ ((packed));
1201
struct iwl_wep_cmd {
1206
struct iwl_wep_key key[0];
1207
} __attribute__ ((packed));
1209
#define WEP_KEY_WEP_TYPE 1
1210
#define WEP_KEYS_MAX 4
1211
#define WEP_INVALID_OFFSET 0xff
1212
#define WEP_KEY_LEN_64 5
1213
#define WEP_KEY_LEN_128 13
1215
/******************************************************************************
1219
*****************************************************************************/
1221
#define RX_RES_STATUS_NO_CRC32_ERROR cpu_to_le32(1 << 0)
1222
#define RX_RES_STATUS_NO_RXE_OVERFLOW cpu_to_le32(1 << 1)
1224
#define RX_RES_PHY_FLAGS_BAND_24_MSK cpu_to_le16(1 << 0)
1225
#define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1)
1226
#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2)
1227
#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3)
1228
#define RX_RES_PHY_FLAGS_ANTENNA_MSK 0xf0
1229
#define RX_RES_PHY_FLAGS_ANTENNA_POS 4
1231
#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
1232
#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
1233
#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
1234
#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
1235
#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
1236
#define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8)
1238
#define RX_RES_STATUS_STATION_FOUND (1<<6)
1239
#define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7)
1241
#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
1242
#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
1243
#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
1244
#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
1245
#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
1247
#define RX_MPDU_RES_STATUS_ICV_OK (0x20)
1248
#define RX_MPDU_RES_STATUS_MIC_OK (0x40)
1249
#define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
1250
#define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)
1253
struct iwl3945_rx_frame_stats {
1261
} __attribute__ ((packed));
1263
struct iwl3945_rx_frame_hdr {
1270
} __attribute__ ((packed));
1272
struct iwl3945_rx_frame_end {
1275
__le32 beacon_timestamp;
1276
} __attribute__ ((packed));
1279
* REPLY_3945_RX = 0x1b (response only, not a command)
1281
* NOTE: DO NOT dereference from casts to this structure
1282
* It is provided only for calculating minimum data set size.
1283
* The actual offsets of the hdr and end are dynamic based on
1286
struct iwl3945_rx_frame {
1287
struct iwl3945_rx_frame_stats stats;
1288
struct iwl3945_rx_frame_hdr hdr;
1289
struct iwl3945_rx_frame_end end;
1290
} __attribute__ ((packed));
1292
#define IWL39_RX_FRAME_SIZE (4 + sizeof(struct iwl3945_rx_frame))
1294
/* Fixed (non-configurable) rx data from phy */
1296
#define IWL49_RX_RES_PHY_CNT 14
1297
#define IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
1298
#define IWL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
1299
#define IWL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
1300
#define IWL49_AGC_DB_POS (7)
1301
struct iwl4965_rx_non_cfg_phy {
1302
__le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
1303
__le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
1304
u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
1306
} __attribute__ ((packed));
1309
#define IWL50_RX_RES_PHY_CNT 8
1310
#define IWL50_RX_RES_AGC_IDX 1
1311
#define IWL50_RX_RES_RSSI_AB_IDX 2
1312
#define IWL50_RX_RES_RSSI_C_IDX 3
1313
#define IWL50_OFDM_AGC_MSK 0xfe00
1314
#define IWL50_OFDM_AGC_BIT_POS 9
1315
#define IWL50_OFDM_RSSI_A_MSK 0x00ff
1316
#define IWL50_OFDM_RSSI_A_BIT_POS 0
1317
#define IWL50_OFDM_RSSI_B_MSK 0xff0000
1318
#define IWL50_OFDM_RSSI_B_BIT_POS 16
1319
#define IWL50_OFDM_RSSI_C_MSK 0x00ff
1320
#define IWL50_OFDM_RSSI_C_BIT_POS 0
1322
struct iwl5000_non_cfg_phy {
1323
__le32 non_cfg_phy[IWL50_RX_RES_PHY_CNT]; /* up to 8 phy entries */
1324
} __attribute__ ((packed));
1328
* REPLY_RX = 0xc3 (response only, not a command)
1329
* Used only for legacy (non 11n) frames.
1331
struct iwl_rx_phy_res {
1332
u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
1333
u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
1334
u8 stat_id; /* configurable DSP phy data set ID */
1336
__le64 timestamp; /* TSF at on air rise */
1337
__le32 beacon_time_stamp; /* beacon at on-air rise */
1338
__le16 phy_flags; /* general phy flags: band, modulation, ... */
1339
__le16 channel; /* channel number */
1340
u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
1341
__le32 rate_n_flags; /* RATE_MCS_* */
1342
__le16 byte_count; /* frame's byte-count */
1344
} __attribute__ ((packed));
1346
struct iwl4965_rx_mpdu_res_start {
1349
} __attribute__ ((packed));
1352
/******************************************************************************
1354
* Tx Commands & Responses:
1356
* Driver must place each REPLY_TX command into one of the prioritized Tx
1357
* queues in host DRAM, shared between driver and device (see comments for
1358
* SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
1359
* are preparing to transmit, the device pulls the Tx command over the PCI
1360
* bus via one of the device's Tx DMA channels, to fill an internal FIFO
1361
* from which data will be transmitted.
1363
* uCode handles all timing and protocol related to control frames
1364
* (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
1365
* handle reception of block-acks; uCode updates the host driver via
1366
* REPLY_COMPRESSED_BA (4965).
1368
* uCode handles retrying Tx when an ACK is expected but not received.
1369
* This includes trying lower data rates than the one requested in the Tx
1370
* command, as set up by the REPLY_RATE_SCALE (for 3945) or
1371
* REPLY_TX_LINK_QUALITY_CMD (4965).
1373
* Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
1374
* This command must be executed after every RXON command, before Tx can occur.
1375
*****************************************************************************/
1377
/* REPLY_TX Tx flags field */
1379
/* 1: Use RTS/CTS protocol or CTS-to-self if spec allows it
1380
* before this frame. if CTS-to-self required check
1381
* RXON_FLG_SELF_CTS_EN status. */
1382
#define TX_CMD_FLG_RTS_CTS_MSK cpu_to_le32(1 << 0)
1384
/* 1: Use Request-To-Send protocol before this frame.
1385
* Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */
1386
#define TX_CMD_FLG_RTS_MSK cpu_to_le32(1 << 1)
1388
/* 1: Transmit Clear-To-Send to self before this frame.
1389
* Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
1390
* Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */
1391
#define TX_CMD_FLG_CTS_MSK cpu_to_le32(1 << 2)
1393
/* 1: Expect ACK from receiving station
1394
* 0: Don't expect ACK (MAC header's duration field s/b 0)
1395
* Set this for unicast frames, but not broadcast/multicast. */
1396
#define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3)
1399
* 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
1400
* Tx command's initial_rate_index indicates first rate to try;
1401
* uCode walks through table for additional Tx attempts.
1402
* 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
1403
* This rate will be used for all Tx attempts; it will not be scaled. */
1404
#define TX_CMD_FLG_STA_RATE_MSK cpu_to_le32(1 << 4)
1406
/* 1: Expect immediate block-ack.
1407
* Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
1408
#define TX_CMD_FLG_IMM_BA_RSP_MASK cpu_to_le32(1 << 6)
1410
/* 1: Frame requires full Tx-Op protection.
1411
* Set this if either RTS or CTS Tx Flag gets set. */
1412
#define TX_CMD_FLG_FULL_TXOP_PROT_MSK cpu_to_le32(1 << 7)
1414
/* Tx antenna selection field; used only for 3945, reserved (0) for 4965.
1415
* Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
1416
#define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00)
1417
#define TX_CMD_FLG_ANT_A_MSK cpu_to_le32(1 << 8)
1418
#define TX_CMD_FLG_ANT_B_MSK cpu_to_le32(1 << 9)
1420
/* 1: Ignore Bluetooth priority for this frame.
1421
* 0: Delay Tx until Bluetooth device is done (normal usage). */
1422
#define TX_CMD_FLG_BT_DIS_MSK cpu_to_le32(1 << 12)
1424
/* 1: uCode overrides sequence control field in MAC header.
1425
* 0: Driver provides sequence control field in MAC header.
1426
* Set this for management frames, non-QOS data frames, non-unicast frames,
1427
* and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
1428
#define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13)
1430
/* 1: This frame is non-last MPDU; more fragments are coming.
1431
* 0: Last fragment, or not using fragmentation. */
1432
#define TX_CMD_FLG_MORE_FRAG_MSK cpu_to_le32(1 << 14)
1434
/* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
1435
* 0: No TSF required in outgoing frame.
1436
* Set this for transmitting beacons and probe responses. */
1437
#define TX_CMD_FLG_TSF_MSK cpu_to_le32(1 << 16)
1439
/* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
1440
* alignment of frame's payload data field.
1442
* Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
1443
* field (but not both). Driver must align frame data (i.e. data following
1444
* MAC header) to DWORD boundary. */
1445
#define TX_CMD_FLG_MH_PAD_MSK cpu_to_le32(1 << 20)
1447
/* accelerate aggregation support
1448
* 0 - no CCMP encryption; 1 - CCMP encryption */
1449
#define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22)
1451
/* HCCA-AP - disable duration overwriting. */
1452
#define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25)
1456
* TX command security control
1458
#define TX_CMD_SEC_WEP 0x01
1459
#define TX_CMD_SEC_CCM 0x02
1460
#define TX_CMD_SEC_TKIP 0x03
1461
#define TX_CMD_SEC_MSK 0x03
1462
#define TX_CMD_SEC_SHIFT 6
1463
#define TX_CMD_SEC_KEY128 0x08
1466
* security overhead sizes
1468
#define WEP_IV_LEN 4
1469
#define WEP_ICV_LEN 4
1470
#define CCMP_MIC_LEN 8
1471
#define TKIP_ICV_LEN 4
1474
* REPLY_TX = 0x1c (command)
1477
struct iwl3945_tx_cmd {
1480
* MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1481
* + 8 byte IV for CCM or TKIP (not used for WEP)
1483
* + 8-byte MIC (not used for CCM/WEP)
1484
* NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1485
* MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1486
* Range: 14-2342 bytes.
1491
* MPDU or MSDU byte count for next frame.
1492
* Used for fragmentation and bursting, but not 11n aggregation.
1493
* Same as "len", but for next frame. Set to 0 if not applicable.
1495
__le16 next_frame_len;
1497
__le32 tx_flags; /* TX_CMD_FLG_* */
1501
/* Index of recipient station in uCode's station table */
1511
__le32 next_frame_info;
1517
u8 rts_retry_limit; /*byte 50 */
1518
u8 data_retry_limit; /*byte 51 */
1520
__le16 pm_frame_timeout;
1521
__le16 attempt_duration;
1525
* Duration of EDCA burst Tx Opportunity, in 32-usec units.
1526
* Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1531
* MAC header goes here, followed by 2 bytes padding if MAC header
1532
* length is 26 or 30 bytes, followed by payload data
1535
struct ieee80211_hdr hdr[0];
1536
} __attribute__ ((packed));
1539
* REPLY_TX = 0x1c (response)
1541
struct iwl3945_tx_resp {
1546
__le32 wireless_media_time;
1547
__le32 status; /* TX status */
1548
} __attribute__ ((packed));
1552
* 4965 uCode updates these Tx attempt count values in host DRAM.
1553
* Used for managing Tx retries when expecting block-acks.
1554
* Driver should set these fields to 0.
1556
struct iwl_dram_scratch {
1557
u8 try_cnt; /* Tx attempts */
1558
u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
1560
} __attribute__ ((packed));
1565
* MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
1566
* + 8 byte IV for CCM or TKIP (not used for WEP)
1568
* + 8-byte MIC (not used for CCM/WEP)
1569
* NOTE: Does not include Tx command bytes, post-MAC pad bytes,
1570
* MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
1571
* Range: 14-2342 bytes.
1576
* MPDU or MSDU byte count for next frame.
1577
* Used for fragmentation and bursting, but not 11n aggregation.
1578
* Same as "len", but for next frame. Set to 0 if not applicable.
1580
__le16 next_frame_len;
1582
__le32 tx_flags; /* TX_CMD_FLG_* */
1584
/* uCode may modify this field of the Tx command (in host DRAM!).
1585
* Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
1586
struct iwl_dram_scratch scratch;
1588
/* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
1589
__le32 rate_n_flags; /* RATE_MCS_* */
1591
/* Index of destination station in uCode's station table */
1594
/* Type of security encryption: CCM or TKIP */
1595
u8 sec_ctl; /* TX_CMD_SEC_* */
1598
* Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial
1599
* Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
1600
* data frames, this field may be used to selectively reduce initial
1601
* rate (via non-0 value) for special frames (e.g. management), while
1602
* still supporting rate scaling for all frames.
1604
u8 initial_rate_index;
1607
__le16 next_frame_flags;
1614
/* Host DRAM physical address pointer to "scratch" in this command.
1615
* Must be dword aligned. "0" in dram_lsb_ptr disables usage. */
1616
__le32 dram_lsb_ptr;
1619
u8 rts_retry_limit; /*byte 50 */
1620
u8 data_retry_limit; /*byte 51 */
1623
__le16 pm_frame_timeout;
1624
__le16 attempt_duration;
1628
* Duration of EDCA burst Tx Opportunity, in 32-usec units.
1629
* Set this if txop time is not specified by HCCA protocol (e.g. by AP).
1634
* MAC header goes here, followed by 2 bytes padding if MAC header
1635
* length is 26 or 30 bytes, followed by payload data
1638
struct ieee80211_hdr hdr[0];
1639
} __attribute__ ((packed));
1641
/* TX command response is sent after *all* transmission attempts.
1645
* TX_STATUS_FAIL_NEXT_FRAG
1647
* If the fragment flag in the MAC header for the frame being transmitted
1648
* is set and there is insufficient time to transmit the next frame, the
1649
* TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
1651
* TX_STATUS_FIFO_UNDERRUN
1653
* Indicates the host did not provide bytes to the FIFO fast enough while
1654
* a TX was in progress.
1656
* TX_STATUS_FAIL_MGMNT_ABORT
1658
* This status is only possible if the ABORT ON MGMT RX parameter was
1659
* set to true with the TX command.
1661
* If the MSB of the status parameter is set then an abort sequence is
1662
* required. This sequence consists of the host activating the TX Abort
1663
* control line, and then waiting for the TX Abort command response. This
1664
* indicates that a the device is no longer in a transmit state, and that the
1665
* command FIFO has been cleared. The host must then deactivate the TX Abort
1666
* control line. Receiving is still allowed in this case.
1669
TX_STATUS_SUCCESS = 0x01,
1670
TX_STATUS_DIRECT_DONE = 0x02,
1671
TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
1672
TX_STATUS_FAIL_LONG_LIMIT = 0x83,
1673
TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
1674
TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
1675
TX_STATUS_FAIL_NEXT_FRAG = 0x86,
1676
TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
1677
TX_STATUS_FAIL_DEST_PS = 0x88,
1678
TX_STATUS_FAIL_ABORTED = 0x89,
1679
TX_STATUS_FAIL_BT_RETRY = 0x8a,
1680
TX_STATUS_FAIL_STA_INVALID = 0x8b,
1681
TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
1682
TX_STATUS_FAIL_TID_DISABLE = 0x8d,
1683
TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
1684
TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
1685
TX_STATUS_FAIL_TX_LOCKED = 0x90,
1686
TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
1689
#define TX_PACKET_MODE_REGULAR 0x0000
1690
#define TX_PACKET_MODE_BURST_SEQ 0x0100
1691
#define TX_PACKET_MODE_BURST_FIRST 0x0200
1694
TX_POWER_PA_NOT_ACTIVE = 0x0,
1698
TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
1699
TX_STATUS_DELAY_MSK = 0x00000040,
1700
TX_STATUS_ABORT_MSK = 0x00000080,
1701
TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
1702
TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
1703
TX_RESERVED = 0x00780000, /* bits 19:22 */
1704
TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
1705
TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
1708
static inline u32 iwl_tx_status_to_mac80211(u32 status)
1710
status &= TX_STATUS_MSK;
1713
case TX_STATUS_SUCCESS:
1714
case TX_STATUS_DIRECT_DONE:
1715
return IEEE80211_TX_STAT_ACK;
1716
case TX_STATUS_FAIL_DEST_PS:
1717
return IEEE80211_TX_STAT_TX_FILTERED;
1723
static inline bool iwl_is_tx_success(u32 status)
1725
status &= TX_STATUS_MSK;
1726
return (status == TX_STATUS_SUCCESS) ||
1727
(status == TX_STATUS_DIRECT_DONE);
1732
/* *******************************
1733
* TX aggregation status
1734
******************************* */
1737
AGG_TX_STATE_TRANSMITTED = 0x00,
1738
AGG_TX_STATE_UNDERRUN_MSK = 0x01,
1739
AGG_TX_STATE_BT_PRIO_MSK = 0x02,
1740
AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
1741
AGG_TX_STATE_ABORT_MSK = 0x08,
1742
AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
1743
AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
1744
AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40,
1745
AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
1746
AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
1747
AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
1748
AGG_TX_STATE_DUMP_TX_MSK = 0x200,
1749
AGG_TX_STATE_DELAY_TX_MSK = 0x400
1752
#define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL_MSK | \
1753
AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
1754
AGG_TX_STATE_LAST_SENT_BT_KILL_MSK)
1756
/* # tx attempts for first frame in aggregation */
1757
#define AGG_TX_STATE_TRY_CNT_POS 12
1758
#define AGG_TX_STATE_TRY_CNT_MSK 0xf000
1760
/* Command ID and sequence number of Tx command for this frame */
1761
#define AGG_TX_STATE_SEQ_NUM_POS 16
1762
#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
1765
* REPLY_TX = 0x1c (response)
1767
* This response may be in one of two slightly different formats, indicated
1768
* by the frame_count field:
1770
* 1) No aggregation (frame_count == 1). This reports Tx results for
1771
* a single frame. Multiple attempts, at various bit rates, may have
1772
* been made for this frame.
1774
* 2) Aggregation (frame_count > 1). This reports Tx results for
1775
* 2 or more frames that used block-acknowledge. All frames were
1776
* transmitted at same rate. Rate scaling may have been used if first
1777
* frame in this new agg block failed in previous agg block(s).
1779
* Note that, for aggregation, ACK (block-ack) status is not delivered here;
1780
* block-ack has not been received by the time the 4965 records this status.
1781
* This status relates to reasons the tx might have been blocked or aborted
1782
* within the sending station (this 4965), rather than whether it was
1783
* received successfully by the destination station.
1785
struct agg_tx_status {
1788
} __attribute__ ((packed));
1790
struct iwl4965_tx_resp {
1791
u8 frame_count; /* 1 no aggregation, >1 aggregation */
1792
u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1793
u8 failure_rts; /* # failures due to unsuccessful RTS */
1794
u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1796
/* For non-agg: Rate at which frame was successful.
1797
* For agg: Rate at which all frames were transmitted. */
1798
__le32 rate_n_flags; /* RATE_MCS_* */
1800
/* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1801
* For agg: RTS + CTS + aggregation tx time + block-ack time. */
1802
__le16 wireless_media_time; /* uSecs */
1805
__le32 pa_power1; /* RF power amplifier measurement (not used) */
1809
* For non-agg: frame status TX_STATUS_*
1810
* For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1811
* fields follow this one, up to frame_count.
1813
* 11- 0: AGG_TX_STATE_* status code
1814
* 15-12: Retry count for 1st frame in aggregation (retries
1815
* occur if tx failed for this frame when it was a
1816
* member of a previous aggregation block). If rate
1817
* scaling is used, retry count indicates the rate
1818
* table entry used for all frames in the new agg.
1819
* 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1823
struct agg_tx_status agg_status[0]; /* for each agg frame */
1825
} __attribute__ ((packed));
1828
* definitions for initial rate index field
1829
* bits [3:0] initial rate index
1830
* bits [6:4] rate table color, used for the initial rate
1831
* bit-7 invalid rate indication
1832
* i.e. rate was not chosen from rate table
1833
* or rate table color was changed during frame retries
1834
* refer tlc rate info
1837
#define IWL50_TX_RES_INIT_RATE_INDEX_POS 0
1838
#define IWL50_TX_RES_INIT_RATE_INDEX_MSK 0x0f
1839
#define IWL50_TX_RES_RATE_TABLE_COLOR_POS 4
1840
#define IWL50_TX_RES_RATE_TABLE_COLOR_MSK 0x70
1841
#define IWL50_TX_RES_INV_RATE_INDEX_MSK 0x80
1843
/* refer to ra_tid */
1844
#define IWL50_TX_RES_TID_POS 0
1845
#define IWL50_TX_RES_TID_MSK 0x0f
1846
#define IWL50_TX_RES_RA_POS 4
1847
#define IWL50_TX_RES_RA_MSK 0xf0
1849
struct iwl5000_tx_resp {
1850
u8 frame_count; /* 1 no aggregation, >1 aggregation */
1851
u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
1852
u8 failure_rts; /* # failures due to unsuccessful RTS */
1853
u8 failure_frame; /* # failures due to no ACK (unused for agg) */
1855
/* For non-agg: Rate at which frame was successful.
1856
* For agg: Rate at which all frames were transmitted. */
1857
__le32 rate_n_flags; /* RATE_MCS_* */
1859
/* For non-agg: RTS + CTS + frame tx attempts time + ACK.
1860
* For agg: RTS + CTS + aggregation tx time + block-ack time. */
1861
__le16 wireless_media_time; /* uSecs */
1863
u8 pa_status; /* RF power amplifier measurement (not used) */
1864
u8 pa_integ_res_a[3];
1865
u8 pa_integ_res_b[3];
1866
u8 pa_integ_res_C[3];
1872
u8 ra_tid; /* tid (0:3), sta_id (4:7) */
1875
* For non-agg: frame status TX_STATUS_*
1876
* For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
1877
* fields follow this one, up to frame_count.
1879
* 11- 0: AGG_TX_STATE_* status code
1880
* 15-12: Retry count for 1st frame in aggregation (retries
1881
* occur if tx failed for this frame when it was a
1882
* member of a previous aggregation block). If rate
1883
* scaling is used, retry count indicates the rate
1884
* table entry used for all frames in the new agg.
1885
* 31-16: Sequence # for this frame's Tx cmd (not SSN!)
1887
struct agg_tx_status status; /* TX status (in aggregation -
1888
* status of 1st frame) */
1889
} __attribute__ ((packed));
1891
* REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
1893
* Reports Block-Acknowledge from recipient station
1895
struct iwl_compressed_ba_resp {
1896
__le32 sta_addr_lo32;
1897
__le16 sta_addr_hi16;
1900
/* Index of recipient (BA-sending) station in uCode's station table */
1907
} __attribute__ ((packed));
1910
* REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
1912
* See details under "TXPOWER" in iwl-4965-hw.h.
1915
struct iwl3945_txpowertable_cmd {
1916
u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1919
struct iwl3945_power_per_rate power[IWL_MAX_RATES];
1920
} __attribute__ ((packed));
1922
struct iwl4965_txpowertable_cmd {
1923
u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
1926
struct iwl4965_tx_power_db tx_power;
1927
} __attribute__ ((packed));
1931
* struct iwl3945_rate_scaling_cmd - Rate Scaling Command & Response
1933
* REPLY_RATE_SCALE = 0x47 (command, has simple generic response)
1935
* NOTE: The table of rates passed to the uCode via the
1936
* RATE_SCALE command sets up the corresponding order of
1937
* rates used for all related commands, including rate
1940
* For example, if you set 9MB (PLCP 0x0f) as the first
1941
* rate in the rate table, the bit mask for that rate
1942
* when passed through ofdm_basic_rates on the REPLY_RXON
1943
* command would be bit 0 (1 << 0)
1945
struct iwl3945_rate_scaling_info {
1946
__le16 rate_n_flags;
1949
} __attribute__ ((packed));
1951
struct iwl3945_rate_scaling_cmd {
1954
struct iwl3945_rate_scaling_info table[IWL_MAX_RATES];
1955
} __attribute__ ((packed));
1958
/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
1959
#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0)
1961
/* # of EDCA prioritized tx fifos */
1962
#define LINK_QUAL_AC_NUM AC_NUM
1964
/* # entries in rate scale table to support Tx retries */
1965
#define LINK_QUAL_MAX_RETRY_NUM 16
1967
/* Tx antenna selection values */
1968
#define LINK_QUAL_ANT_A_MSK (1 << 0)
1969
#define LINK_QUAL_ANT_B_MSK (1 << 1)
1970
#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
1974
* struct iwl_link_qual_general_params
1976
* Used in REPLY_TX_LINK_QUALITY_CMD
1978
struct iwl_link_qual_general_params {
1981
/* No entries at or above this (driver chosen) index contain MIMO */
1984
/* Best single antenna to use for single stream (legacy, SISO). */
1985
u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
1987
/* Best antennas to use for MIMO (unused for 4965, assumes both). */
1988
u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
1991
* If driver needs to use different initial rates for different
1992
* EDCA QOS access categories (as implemented by tx fifos 0-3),
1993
* this table will set that up, by indicating the indexes in the
1994
* rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
1995
* Otherwise, driver should set all entries to 0.
1998
* 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
1999
* TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
2001
u8 start_rate_index[LINK_QUAL_AC_NUM];
2002
} __attribute__ ((packed));
2004
#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */
2005
#define LINK_QUAL_AGG_TIME_LIMIT_MAX (65535)
2006
#define LINK_QUAL_AGG_TIME_LIMIT_MIN (0)
2008
#define LINK_QUAL_AGG_DISABLE_START_DEF (3)
2009
#define LINK_QUAL_AGG_DISABLE_START_MAX (255)
2010
#define LINK_QUAL_AGG_DISABLE_START_MIN (0)
2012
#define LINK_QUAL_AGG_FRAME_LIMIT_DEF (31)
2013
#define LINK_QUAL_AGG_FRAME_LIMIT_MAX (63)
2014
#define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0)
2017
* struct iwl_link_qual_agg_params
2019
* Used in REPLY_TX_LINK_QUALITY_CMD
2021
struct iwl_link_qual_agg_params {
2023
/* Maximum number of uSec in aggregation.
2024
* Driver should set this to 4000 (4 milliseconds). */
2025
__le16 agg_time_limit;
2028
* Number of Tx retries allowed for a frame, before that frame will
2029
* no longer be considered for the start of an aggregation sequence
2030
* (scheduler will then try to tx it as single frame).
2031
* Driver should set this to 3.
2033
u8 agg_dis_start_th;
2036
* Maximum number of frames in aggregation.
2037
* 0 = no limit (default). 1 = no aggregation.
2038
* Other values = max # frames in aggregation.
2040
u8 agg_frame_cnt_limit;
2043
} __attribute__ ((packed));
2046
* REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
2048
* For 4965 only; 3945 uses REPLY_RATE_SCALE.
2050
* Each station in the 4965's internal station table has its own table of 16
2051
* Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when
2052
* an ACK is not received. This command replaces the entire table for
2055
* NOTE: Station must already be in 4965's station table. Use REPLY_ADD_STA.
2057
* The rate scaling procedures described below work well. Of course, other
2058
* procedures are possible, and may work better for particular environments.
2061
* FILLING THE RATE TABLE
2063
* Given a particular initial rate and mode, as determined by the rate
2064
* scaling algorithm described below, the Linux driver uses the following
2065
* formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the
2066
* Link Quality command:
2069
* 1) If using High-throughput (HT) (SISO or MIMO) initial rate:
2070
* a) Use this same initial rate for first 3 entries.
2071
* b) Find next lower available rate using same mode (SISO or MIMO),
2072
* use for next 3 entries. If no lower rate available, switch to
2073
* legacy mode (no HT40 channel, no MIMO, no short guard interval).
2074
* c) If using MIMO, set command's mimo_delimiter to number of entries
2075
* using MIMO (3 or 6).
2076
* d) After trying 2 HT rates, switch to legacy mode (no HT40 channel,
2077
* no MIMO, no short guard interval), at the next lower bit rate
2078
* (e.g. if second HT bit rate was 54, try 48 legacy), and follow
2079
* legacy procedure for remaining table entries.
2081
* 2) If using legacy initial rate:
2082
* a) Use the initial rate for only one entry.
2083
* b) For each following entry, reduce the rate to next lower available
2084
* rate, until reaching the lowest available rate.
2085
* c) When reducing rate, also switch antenna selection.
2086
* d) Once lowest available rate is reached, repeat this rate until
2087
* rate table is filled (16 entries), switching antenna each entry.
2090
* ACCUMULATING HISTORY
2092
* The rate scaling algorithm for 4965, as implemented in Linux driver, uses
2093
* two sets of frame Tx success history: One for the current/active modulation
2094
* mode, and one for a speculative/search mode that is being attempted. If the
2095
* speculative mode turns out to be more effective (i.e. actual transfer
2096
* rate is better), then the driver continues to use the speculative mode
2097
* as the new current active mode.
2099
* Each history set contains, separately for each possible rate, data for a
2100
* sliding window of the 62 most recent tx attempts at that rate. The data
2101
* includes a shifting bitmap of success(1)/failure(0), and sums of successful
2102
* and attempted frames, from which the driver can additionally calculate a
2103
* success ratio (success / attempted) and number of failures
2104
* (attempted - success), and control the size of the window (attempted).
2105
* The driver uses the bit map to remove successes from the success sum, as
2106
* the oldest tx attempts fall out of the window.
2108
* When the 4965 makes multiple tx attempts for a given frame, each attempt
2109
* might be at a different rate, and have different modulation characteristics
2110
* (e.g. antenna, fat channel, short guard interval), as set up in the rate
2111
* scaling table in the Link Quality command. The driver must determine
2112
* which rate table entry was used for each tx attempt, to determine which
2113
* rate-specific history to update, and record only those attempts that
2114
* match the modulation characteristics of the history set.
2116
* When using block-ack (aggregation), all frames are transmitted at the same
2117
* rate, since there is no per-attempt acknowledgment from the destination
2118
* station. The Tx response struct iwl_tx_resp indicates the Tx rate in
2119
* rate_n_flags field. After receiving a block-ack, the driver can update
2120
* history for the entire block all at once.
2123
* FINDING BEST STARTING RATE:
2125
* When working with a selected initial modulation mode (see below), the
2126
* driver attempts to find a best initial rate. The initial rate is the
2127
* first entry in the Link Quality command's rate table.
2129
* 1) Calculate actual throughput (success ratio * expected throughput, see
2130
* table below) for current initial rate. Do this only if enough frames
2131
* have been attempted to make the value meaningful: at least 6 failed
2132
* tx attempts, or at least 8 successes. If not enough, don't try rate
2135
* 2) Find available rates adjacent to current initial rate. Available means:
2136
* a) supported by hardware &&
2137
* b) supported by association &&
2138
* c) within any constraints selected by user
2140
* 3) Gather measured throughputs for adjacent rates. These might not have
2141
* enough history to calculate a throughput. That's okay, we might try
2142
* using one of them anyway!
2144
* 4) Try decreasing rate if, for current rate:
2145
* a) success ratio is < 15% ||
2146
* b) lower adjacent rate has better measured throughput ||
2147
* c) higher adjacent rate has worse throughput, and lower is unmeasured
2149
* As a sanity check, if decrease was determined above, leave rate
2151
* a) lower rate unavailable
2152
* b) success ratio at current rate > 85% (very good)
2153
* c) current measured throughput is better than expected throughput
2154
* of lower rate (under perfect 100% tx conditions, see table below)
2156
* 5) Try increasing rate if, for current rate:
2157
* a) success ratio is < 15% ||
2158
* b) both adjacent rates' throughputs are unmeasured (try it!) ||
2159
* b) higher adjacent rate has better measured throughput ||
2160
* c) lower adjacent rate has worse throughput, and higher is unmeasured
2162
* As a sanity check, if increase was determined above, leave rate
2164
* a) success ratio at current rate < 70%. This is not particularly
2165
* good performance; higher rate is sure to have poorer success.
2167
* 6) Re-evaluate the rate after each tx frame. If working with block-
2168
* acknowledge, history and statistics may be calculated for the entire
2169
* block (including prior history that fits within the history windows),
2170
* before re-evaluation.
2172
* FINDING BEST STARTING MODULATION MODE:
2174
* After working with a modulation mode for a "while" (and doing rate scaling),
2175
* the driver searches for a new initial mode in an attempt to improve
2176
* throughput. The "while" is measured by numbers of attempted frames:
2178
* For legacy mode, search for new mode after:
2179
* 480 successful frames, or 160 failed frames
2180
* For high-throughput modes (SISO or MIMO), search for new mode after:
2181
* 4500 successful frames, or 400 failed frames
2183
* Mode switch possibilities are (3 for each mode):
2186
* Change antenna, try SISO (if HT association), try MIMO (if HT association)
2188
* Change antenna, try MIMO, try shortened guard interval (SGI)
2190
* Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI)
2192
* When trying a new mode, use the same bit rate as the old/current mode when
2193
* trying antenna switches and shortened guard interval. When switching to
2194
* SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate
2195
* for which the expected throughput (under perfect conditions) is about the
2196
* same or slightly better than the actual measured throughput delivered by
2197
* the old/current mode.
2199
* Actual throughput can be estimated by multiplying the expected throughput
2200
* by the success ratio (successful / attempted tx frames). Frame size is
2201
* not considered in this calculation; it assumes that frame size will average
2202
* out to be fairly consistent over several samples. The following are
2203
* metric values for expected throughput assuming 100% success ratio.
2204
* Only G band has support for CCK rates:
2206
* RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60
2208
* G: 7 13 35 58 40 57 72 98 121 154 177 186 186
2209
* A: 0 0 0 0 40 57 72 98 121 154 177 186 186
2210
* SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202
2211
* SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211
2212
* MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251
2213
* SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257
2214
* SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257
2215
* SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264
2216
* MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289
2217
* SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293
2219
* After the new mode has been tried for a short while (minimum of 6 failed
2220
* frames or 8 successful frames), compare success ratio and actual throughput
2221
* estimate of the new mode with the old. If either is better with the new
2222
* mode, continue to use the new mode.
2224
* Continue comparing modes until all 3 possibilities have been tried.
2225
* If moving from legacy to HT, try all 3 possibilities from the new HT
2226
* mode. After trying all 3, a best mode is found. Continue to use this mode
2227
* for the longer "while" described above (e.g. 480 successful frames for
2228
* legacy), and then repeat the search process.
2231
struct iwl_link_quality_cmd {
2233
/* Index of destination/recipient station in uCode's station table */
2236
__le16 control; /* not used */
2237
struct iwl_link_qual_general_params general_params;
2238
struct iwl_link_qual_agg_params agg_params;
2241
* Rate info; when using rate-scaling, Tx command's initial_rate_index
2242
* specifies 1st Tx rate attempted, via index into this table.
2243
* 4965 works its way through table when retrying Tx.
2246
__le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */
2247
} rs_table[LINK_QUAL_MAX_RETRY_NUM];
2249
} __attribute__ ((packed));
2251
#define BT_COEX_DISABLE (0x0)
2252
#define BT_COEX_MODE_2W (0x1)
2253
#define BT_COEX_MODE_3W (0x2)
2254
#define BT_COEX_MODE_4W (0x3)
2256
#define BT_LEAD_TIME_MIN (0x0)
2257
#define BT_LEAD_TIME_DEF (0x1E)
2258
#define BT_LEAD_TIME_MAX (0xFF)
2260
#define BT_MAX_KILL_MIN (0x1)
2261
#define BT_MAX_KILL_DEF (0x5)
2262
#define BT_MAX_KILL_MAX (0xFF)
2265
* REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
2267
* 3945 and 4965 support hardware handshake with Bluetooth device on
2268
* same platform. Bluetooth device alerts wireless device when it will Tx;
2269
* wireless device can delay or kill its own Tx to accommodate.
2276
__le32 kill_ack_mask;
2277
__le32 kill_cts_mask;
2278
} __attribute__ ((packed));
2280
/******************************************************************************
2282
* Spectrum Management (802.11h) Commands, Responses, Notifications:
2284
*****************************************************************************/
2287
* Spectrum Management
2289
#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
2290
RXON_FILTER_CTL2HOST_MSK | \
2291
RXON_FILTER_ACCEPT_GRP_MSK | \
2292
RXON_FILTER_DIS_DECRYPT_MSK | \
2293
RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
2294
RXON_FILTER_ASSOC_MSK | \
2295
RXON_FILTER_BCON_AWARE_MSK)
2297
struct iwl_measure_channel {
2298
__le32 duration; /* measurement duration in extended beacon
2300
u8 channel; /* channel to measure */
2301
u8 type; /* see enum iwl_measure_type */
2303
} __attribute__ ((packed));
2306
* REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
2308
struct iwl_spectrum_cmd {
2309
__le16 len; /* number of bytes starting from token */
2310
u8 token; /* token id */
2311
u8 id; /* measurement id -- 0 or 1 */
2312
u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
2313
u8 periodic; /* 1 = periodic */
2314
__le16 path_loss_timeout;
2315
__le32 start_time; /* start time in extended beacon format */
2317
__le32 flags; /* rxon flags */
2318
__le32 filter_flags; /* rxon filter flags */
2319
__le16 channel_count; /* minimum 1, maximum 10 */
2321
struct iwl_measure_channel channels[10];
2322
} __attribute__ ((packed));
2325
* REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
2327
struct iwl_spectrum_resp {
2329
u8 id; /* id of the prior command replaced, or 0xff */
2330
__le16 status; /* 0 - command will be handled
2331
* 1 - cannot handle (conflicts with another
2333
} __attribute__ ((packed));
2335
enum iwl_measurement_state {
2336
IWL_MEASUREMENT_START = 0,
2337
IWL_MEASUREMENT_STOP = 1,
2340
enum iwl_measurement_status {
2341
IWL_MEASUREMENT_OK = 0,
2342
IWL_MEASUREMENT_CONCURRENT = 1,
2343
IWL_MEASUREMENT_CSA_CONFLICT = 2,
2344
IWL_MEASUREMENT_TGH_CONFLICT = 3,
2346
IWL_MEASUREMENT_STOPPED = 6,
2347
IWL_MEASUREMENT_TIMEOUT = 7,
2348
IWL_MEASUREMENT_PERIODIC_FAILED = 8,
2351
#define NUM_ELEMENTS_IN_HISTOGRAM 8
2353
struct iwl_measurement_histogram {
2354
__le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
2355
__le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
2356
} __attribute__ ((packed));
2358
/* clear channel availability counters */
2359
struct iwl_measurement_cca_counters {
2362
} __attribute__ ((packed));
2364
enum iwl_measure_type {
2365
IWL_MEASURE_BASIC = (1 << 0),
2366
IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
2367
IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
2368
IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
2369
IWL_MEASURE_FRAME = (1 << 4),
2370
/* bits 5:6 are reserved */
2371
IWL_MEASURE_IDLE = (1 << 7),
2375
* SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
2377
struct iwl_spectrum_notification {
2378
u8 id; /* measurement id -- 0 or 1 */
2380
u8 channel_index; /* index in measurement channel list */
2381
u8 state; /* 0 - start, 1 - stop */
2382
__le32 start_time; /* lower 32-bits of TSF */
2383
u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
2385
u8 type; /* see enum iwl_measurement_type */
2387
/* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
2388
* valid if applicable for measurement type requested. */
2389
__le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
2390
__le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
2391
__le32 cca_time; /* channel load time in usecs */
2392
u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
2395
struct iwl_measurement_histogram histogram;
2396
__le32 stop_time; /* lower 32-bits of TSF */
2397
__le32 status; /* see iwl_measurement_status */
2398
} __attribute__ ((packed));
2400
/******************************************************************************
2402
* Power Management Commands, Responses, Notifications:
2404
*****************************************************************************/
2407
* struct iwl_powertable_cmd - Power Table Command
2408
* @flags: See below:
2410
* POWER_TABLE_CMD = 0x77 (command, has simple generic response)
2413
* bit 0 - '0' Driver not allow power management
2414
* '1' Driver allow PM (use rest of parameters)
2416
* uCode send sleep notifications:
2417
* bit 1 - '0' Don't send sleep notification
2418
* '1' send sleep notification (SEND_PM_NOTIFICATION)
2421
* bit 2 - '0' PM have to walk up every DTIM
2422
* '1' PM could sleep over DTIM till listen Interval.
2425
* bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
2426
* '1' !(PCI_CFG_LINK_CTRL & 0x1)
2429
* bit 4 - '1' Put radio to sleep when receiving frame for others
2432
* bit 31/30- '00' use both mac/xtal sleeps
2433
* '01' force Mac sleep
2434
* '10' force xtal sleep
2437
* NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
2438
* ucode assume sleep over DTIM is allowed and we don't need to wake up
2441
#define IWL_POWER_VEC_SIZE 5
2443
#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0))
2444
#define IWL_POWER_SLEEP_OVER_DTIM_MSK cpu_to_le16(BIT(2))
2445
#define IWL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3))
2446
#define IWL_POWER_FAST_PD cpu_to_le16(BIT(4))
2448
struct iwl3945_powertable_cmd {
2451
__le32 rx_data_timeout;
2452
__le32 tx_data_timeout;
2453
__le32 sleep_interval[IWL_POWER_VEC_SIZE];
2454
} __attribute__ ((packed));
2456
struct iwl_powertable_cmd {
2458
u8 keep_alive_seconds; /* 3945 reserved */
2459
u8 debug_flags; /* 3945 reserved */
2460
__le32 rx_data_timeout;
2461
__le32 tx_data_timeout;
2462
__le32 sleep_interval[IWL_POWER_VEC_SIZE];
2463
__le32 keep_alive_beacons;
2464
} __attribute__ ((packed));
2467
* PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
2468
* 3945 and 4965 identical.
2470
struct iwl_sleep_notification {
2477
} __attribute__ ((packed));
2479
/* Sleep states. 3945 and 4965 identical. */
2481
IWL_PM_NO_SLEEP = 0,
2483
IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
2484
IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
2486
IWL_PM_SLP_REPENT = 5,
2487
IWL_PM_WAKEUP_BY_TIMER = 6,
2488
IWL_PM_WAKEUP_BY_DRIVER = 7,
2489
IWL_PM_WAKEUP_BY_RFKILL = 8,
2491
IWL_PM_NUM_OF_MODES = 12,
2495
* REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
2497
#define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
2498
#define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
2499
#define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
2500
struct iwl_card_state_cmd {
2501
__le32 status; /* CARD_STATE_CMD_* request new power state */
2502
} __attribute__ ((packed));
2505
* CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
2507
struct iwl_card_state_notif {
2509
} __attribute__ ((packed));
2511
#define HW_CARD_DISABLED 0x01
2512
#define SW_CARD_DISABLED 0x02
2513
#define RF_CARD_DISABLED 0x04
2514
#define RXON_CARD_DISABLED 0x10
2516
struct iwl_ct_kill_config {
2518
__le32 critical_temperature_M;
2519
__le32 critical_temperature_R;
2520
} __attribute__ ((packed));
2522
/* 1000, and 6x00 */
2523
struct iwl_ct_kill_throttling_config {
2524
__le32 critical_temperature_exit;
2526
__le32 critical_temperature_enter;
2527
} __attribute__ ((packed));
2529
/******************************************************************************
2531
* Scan Commands, Responses, Notifications:
2533
*****************************************************************************/
2535
#define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0)
2536
#define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1)
2539
* struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table
2541
* One for each channel in the scan list.
2542
* Each channel can independently select:
2543
* 1) SSID for directed active scans
2544
* 2) Txpower setting (for rate specified within Tx command)
2545
* 3) How long to stay on-channel (behavior may be modified by quiet_time,
2546
* quiet_plcp_th, good_CRC_th)
2548
* To avoid uCode errors, make sure the following are true (see comments
2549
* under struct iwl_scan_cmd about max_out_time and quiet_time):
2550
* 1) If using passive_dwell (i.e. passive_dwell != 0):
2551
* active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
2552
* 2) quiet_time <= active_dwell
2553
* 3) If restricting off-channel time (i.e. max_out_time !=0):
2554
* passive_dwell < max_out_time
2555
* active_dwell < max_out_time
2558
/* FIXME: rename to AP1, remove tpc */
2559
struct iwl3945_scan_channel {
2561
* type is defined as:
2562
* 0:0 1 = active, 0 = passive
2563
* 1:4 SSID direct bit map; if a bit is set, then corresponding
2564
* SSID IE is transmitted in probe request.
2568
u8 channel; /* band is selected by iwl3945_scan_cmd "flags" field */
2569
struct iwl3945_tx_power tpc;
2570
__le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2571
__le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2572
} __attribute__ ((packed));
2574
/* set number of direct probes u8 type */
2575
#define IWL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1))))
2577
struct iwl_scan_channel {
2579
* type is defined as:
2580
* 0:0 1 = active, 0 = passive
2581
* 1:20 SSID direct bit map; if a bit is set, then corresponding
2582
* SSID IE is transmitted in probe request.
2586
__le16 channel; /* band is selected by iwl_scan_cmd "flags" field */
2587
u8 tx_gain; /* gain for analog radio */
2588
u8 dsp_atten; /* gain for DSP */
2589
__le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
2590
__le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
2591
} __attribute__ ((packed));
2593
/* set number of direct probes __le32 type */
2594
#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
2597
* struct iwl_ssid_ie - directed scan network information element
2599
* Up to 20 of these may appear in REPLY_SCAN_CMD (Note: Only 4 are in
2600
* 3945 SCAN api), selected by "type" bit field in struct iwl_scan_channel;
2601
* each channel may select different ssids from among the 20 (4) entries.
2602
* SSID IEs get transmitted in reverse order of entry.
2604
struct iwl_ssid_ie {
2608
} __attribute__ ((packed));
2610
#define PROBE_OPTION_MAX_3945 4
2611
#define PROBE_OPTION_MAX 20
2612
#define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF)
2613
#define IWL_GOOD_CRC_TH cpu_to_le16(1)
2614
#define IWL_MAX_SCAN_SIZE 1024
2615
#define IWL_MAX_PROBE_REQUEST 200
2618
* REPLY_SCAN_CMD = 0x80 (command)
2620
* The hardware scan command is very powerful; the driver can set it up to
2621
* maintain (relatively) normal network traffic while doing a scan in the
2622
* background. The max_out_time and suspend_time control the ratio of how
2623
* long the device stays on an associated network channel ("service channel")
2624
* vs. how long it's away from the service channel, i.e. tuned to other channels
2627
* max_out_time is the max time off-channel (in usec), and suspend_time
2628
* is how long (in "extended beacon" format) that the scan is "suspended"
2629
* after returning to the service channel. That is, suspend_time is the
2630
* time that we stay on the service channel, doing normal work, between
2631
* scan segments. The driver may set these parameters differently to support
2632
* scanning when associated vs. not associated, and light vs. heavy traffic
2633
* loads when associated.
2635
* After receiving this command, the device's scan engine does the following;
2637
* 1) Sends SCAN_START notification to driver
2638
* 2) Checks to see if it has time to do scan for one channel
2639
* 3) Sends NULL packet, with power-save (PS) bit set to 1,
2640
* to tell AP that we're going off-channel
2641
* 4) Tunes to first channel in scan list, does active or passive scan
2642
* 5) Sends SCAN_RESULT notification to driver
2643
* 6) Checks to see if it has time to do scan on *next* channel in list
2644
* 7) Repeats 4-6 until it no longer has time to scan the next channel
2645
* before max_out_time expires
2646
* 8) Returns to service channel
2647
* 9) Sends NULL packet with PS=0 to tell AP that we're back
2648
* 10) Stays on service channel until suspend_time expires
2649
* 11) Repeats entire process 2-10 until list is complete
2650
* 12) Sends SCAN_COMPLETE notification
2652
* For fast, efficient scans, the scan command also has support for staying on
2653
* a channel for just a short time, if doing active scanning and getting no
2654
* responses to the transmitted probe request. This time is controlled by
2655
* quiet_time, and the number of received packets below which a channel is
2656
* considered "quiet" is controlled by quiet_plcp_threshold.
2658
* For active scanning on channels that have regulatory restrictions against
2659
* blindly transmitting, the scan can listen before transmitting, to make sure
2660
* that there is already legitimate activity on the channel. If enough
2661
* packets are cleanly received on the channel (controlled by good_CRC_th,
2662
* typical value 1), the scan engine starts transmitting probe requests.
2664
* Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
2666
* To avoid uCode errors, see timing restrictions described under
2667
* struct iwl_scan_channel.
2670
struct iwl3945_scan_cmd {
2673
u8 channel_count; /* # channels in channel list */
2674
__le16 quiet_time; /* dwell only this # millisecs on quiet channel
2675
* (only for active scan) */
2676
__le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2677
__le16 good_CRC_th; /* passive -> active promotion threshold */
2679
__le32 max_out_time; /* max usec to be away from associated (service)
2681
__le32 suspend_time; /* pause scan this long (in "extended beacon
2682
* format") when returning to service channel:
2683
* 3945; 31:24 # beacons, 19:0 additional usec,
2684
* 4965; 31:22 # beacons, 21:0 additional usec.
2686
__le32 flags; /* RXON_FLG_* */
2687
__le32 filter_flags; /* RXON_FILTER_* */
2689
/* For active scans (set to all-0s for passive scans).
2690
* Does not include payload. Must specify Tx rate; no rate scaling. */
2691
struct iwl3945_tx_cmd tx_cmd;
2693
/* For directed active scans (set to all-0s otherwise) */
2694
struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX_3945];
2697
* Probe request frame, followed by channel list.
2699
* Size of probe request frame is specified by byte count in tx_cmd.
2700
* Channel list follows immediately after probe request frame.
2701
* Number of channels in list is specified by channel_count.
2702
* Each channel in list is of type:
2704
* struct iwl3945_scan_channel channels[0];
2706
* NOTE: Only one band of channels can be scanned per pass. You
2707
* must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2708
* for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
2709
* before requesting another scan.
2712
} __attribute__ ((packed));
2714
struct iwl_scan_cmd {
2717
u8 channel_count; /* # channels in channel list */
2718
__le16 quiet_time; /* dwell only this # millisecs on quiet channel
2719
* (only for active scan) */
2720
__le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
2721
__le16 good_CRC_th; /* passive -> active promotion threshold */
2722
__le16 rx_chain; /* RXON_RX_CHAIN_* */
2723
__le32 max_out_time; /* max usec to be away from associated (service)
2725
__le32 suspend_time; /* pause scan this long (in "extended beacon
2726
* format") when returning to service chnl:
2727
* 3945; 31:24 # beacons, 19:0 additional usec,
2728
* 4965; 31:22 # beacons, 21:0 additional usec.
2730
__le32 flags; /* RXON_FLG_* */
2731
__le32 filter_flags; /* RXON_FILTER_* */
2733
/* For active scans (set to all-0s for passive scans).
2734
* Does not include payload. Must specify Tx rate; no rate scaling. */
2735
struct iwl_tx_cmd tx_cmd;
2737
/* For directed active scans (set to all-0s otherwise) */
2738
struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
2741
* Probe request frame, followed by channel list.
2743
* Size of probe request frame is specified by byte count in tx_cmd.
2744
* Channel list follows immediately after probe request frame.
2745
* Number of channels in list is specified by channel_count.
2746
* Each channel in list is of type:
2748
* struct iwl_scan_channel channels[0];
2750
* NOTE: Only one band of channels can be scanned per pass. You
2751
* must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
2752
* for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
2753
* before requesting another scan.
2756
} __attribute__ ((packed));
2758
/* Can abort will notify by complete notification with abort status. */
2759
#define CAN_ABORT_STATUS cpu_to_le32(0x1)
2760
/* complete notification statuses */
2761
#define ABORT_STATUS 0x2
2764
* REPLY_SCAN_CMD = 0x80 (response)
2766
struct iwl_scanreq_notification {
2767
__le32 status; /* 1: okay, 2: cannot fulfill request */
2768
} __attribute__ ((packed));
2771
* SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
2773
struct iwl_scanstart_notification {
2776
__le32 beacon_timer;
2781
} __attribute__ ((packed));
2783
#define SCAN_OWNER_STATUS 0x1;
2784
#define MEASURE_OWNER_STATUS 0x2;
2786
#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
2788
* SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
2790
struct iwl_scanresults_notification {
2796
__le32 statistics[NUMBER_OF_STATISTICS];
2797
} __attribute__ ((packed));
2800
* SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
2802
struct iwl_scancomplete_notification {
2803
u8 scanned_channels;
2809
} __attribute__ ((packed));
2812
/******************************************************************************
2814
* IBSS/AP Commands and Notifications:
2816
*****************************************************************************/
2819
* BEACON_NOTIFICATION = 0x90 (notification only, not a command)
2822
struct iwl3945_beacon_notif {
2823
struct iwl3945_tx_resp beacon_notify_hdr;
2826
__le32 ibss_mgr_status;
2827
} __attribute__ ((packed));
2829
struct iwl4965_beacon_notif {
2830
struct iwl4965_tx_resp beacon_notify_hdr;
2833
__le32 ibss_mgr_status;
2834
} __attribute__ ((packed));
2837
* REPLY_TX_BEACON = 0x91 (command, has simple generic response)
2840
struct iwl3945_tx_beacon_cmd {
2841
struct iwl3945_tx_cmd tx;
2845
struct ieee80211_hdr frame[0]; /* beacon frame */
2846
} __attribute__ ((packed));
2848
struct iwl_tx_beacon_cmd {
2849
struct iwl_tx_cmd tx;
2853
struct ieee80211_hdr frame[0]; /* beacon frame */
2854
} __attribute__ ((packed));
2856
/******************************************************************************
2858
* Statistics Commands and Notifications:
2860
*****************************************************************************/
2862
#define IWL_TEMP_CONVERT 260
2864
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
2865
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
2866
#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
2868
/* Used for passing to driver number of successes and failures per rate */
2869
struct rate_histogram {
2871
__le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2872
__le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2873
__le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2876
__le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
2877
__le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
2878
__le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
2880
} __attribute__ ((packed));
2882
/* statistics command response */
2884
struct iwl39_statistics_rx_phy {
2890
__le32 early_overrun_err;
2892
__le32 false_alarm_cnt;
2893
__le32 fina_sync_err_cnt;
2895
__le32 fina_timeout;
2896
__le32 unresponded_rts;
2897
__le32 rxe_frame_limit_overrun;
2898
__le32 sent_ack_cnt;
2899
__le32 sent_cts_cnt;
2900
} __attribute__ ((packed));
2902
struct iwl39_statistics_rx_non_phy {
2903
__le32 bogus_cts; /* CTS received when not expecting CTS */
2904
__le32 bogus_ack; /* ACK received when not expecting ACK */
2905
__le32 non_bssid_frames; /* number of frames with BSSID that
2906
* doesn't belong to the STA BSSID */
2907
__le32 filtered_frames; /* count frames that were dumped in the
2908
* filtering process */
2909
__le32 non_channel_beacons; /* beacons with our bss id but not on
2910
* our serving channel */
2911
} __attribute__ ((packed));
2913
struct iwl39_statistics_rx {
2914
struct iwl39_statistics_rx_phy ofdm;
2915
struct iwl39_statistics_rx_phy cck;
2916
struct iwl39_statistics_rx_non_phy general;
2917
} __attribute__ ((packed));
2919
struct iwl39_statistics_tx {
2920
__le32 preamble_cnt;
2921
__le32 rx_detected_cnt;
2922
__le32 bt_prio_defer_cnt;
2923
__le32 bt_prio_kill_cnt;
2924
__le32 few_bytes_cnt;
2927
__le32 expected_ack_cnt;
2928
__le32 actual_ack_cnt;
2929
} __attribute__ ((packed));
2931
struct statistics_dbg {
2935
} __attribute__ ((packed));
2937
struct iwl39_statistics_div {
2942
} __attribute__ ((packed));
2944
struct iwl39_statistics_general {
2946
struct statistics_dbg dbg;
2950
__le32 ttl_timestamp;
2951
struct iwl39_statistics_div div;
2952
} __attribute__ ((packed));
2954
struct statistics_rx_phy {
2960
__le32 early_overrun_err;
2962
__le32 false_alarm_cnt;
2963
__le32 fina_sync_err_cnt;
2965
__le32 fina_timeout;
2966
__le32 unresponded_rts;
2967
__le32 rxe_frame_limit_overrun;
2968
__le32 sent_ack_cnt;
2969
__le32 sent_cts_cnt;
2970
__le32 sent_ba_rsp_cnt;
2971
__le32 dsp_self_kill;
2972
__le32 mh_format_err;
2973
__le32 re_acq_main_rssi_sum;
2975
} __attribute__ ((packed));
2977
struct statistics_rx_ht_phy {
2980
__le32 early_overrun_err;
2983
__le32 mh_format_err;
2984
__le32 agg_crc32_good;
2985
__le32 agg_mpdu_cnt;
2988
} __attribute__ ((packed));
2990
#define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1)
2992
struct statistics_rx_non_phy {
2993
__le32 bogus_cts; /* CTS received when not expecting CTS */
2994
__le32 bogus_ack; /* ACK received when not expecting ACK */
2995
__le32 non_bssid_frames; /* number of frames with BSSID that
2996
* doesn't belong to the STA BSSID */
2997
__le32 filtered_frames; /* count frames that were dumped in the
2998
* filtering process */
2999
__le32 non_channel_beacons; /* beacons with our bss id but not on
3000
* our serving channel */
3001
__le32 channel_beacons; /* beacons with our bss id and in our
3002
* serving channel */
3003
__le32 num_missed_bcon; /* number of missed beacons */
3004
__le32 adc_rx_saturation_time; /* count in 0.8us units the time the
3005
* ADC was in saturation */
3006
__le32 ina_detection_search_time;/* total time (in 0.8us) searched
3008
__le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
3009
__le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
3010
__le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
3011
__le32 interference_data_flag; /* flag for interference data
3012
* availability. 1 when data is
3014
__le32 channel_load; /* counts RX Enable time in uSec */
3015
__le32 dsp_false_alarms; /* DSP false alarm (both OFDM
3016
* and CCK) counter */
3017
__le32 beacon_rssi_a;
3018
__le32 beacon_rssi_b;
3019
__le32 beacon_rssi_c;
3020
__le32 beacon_energy_a;
3021
__le32 beacon_energy_b;
3022
__le32 beacon_energy_c;
3023
} __attribute__ ((packed));
3025
struct statistics_rx {
3026
struct statistics_rx_phy ofdm;
3027
struct statistics_rx_phy cck;
3028
struct statistics_rx_non_phy general;
3029
struct statistics_rx_ht_phy ofdm_ht;
3030
} __attribute__ ((packed));
3033
* struct statistics_tx_power - current tx power
3035
* @ant_a: current tx power on chain a in 1/2 dB step
3036
* @ant_b: current tx power on chain b in 1/2 dB step
3037
* @ant_c: current tx power on chain c in 1/2 dB step
3039
struct statistics_tx_power {
3044
} __attribute__ ((packed));
3046
struct statistics_tx_non_phy_agg {
3048
__le32 ba_reschedule_frames;
3049
__le32 scd_query_agg_frame_cnt;
3050
__le32 scd_query_no_agg;
3051
__le32 scd_query_agg;
3052
__le32 scd_query_mismatch;
3053
__le32 frame_not_ready;
3055
__le32 bt_prio_kill;
3056
__le32 rx_ba_rsp_cnt;
3057
} __attribute__ ((packed));
3059
struct statistics_tx {
3060
__le32 preamble_cnt;
3061
__le32 rx_detected_cnt;
3062
__le32 bt_prio_defer_cnt;
3063
__le32 bt_prio_kill_cnt;
3064
__le32 few_bytes_cnt;
3067
__le32 expected_ack_cnt;
3068
__le32 actual_ack_cnt;
3069
__le32 dump_msdu_cnt;
3070
__le32 burst_abort_next_frame_mismatch_cnt;
3071
__le32 burst_abort_missing_next_frame_cnt;
3072
__le32 cts_timeout_collision;
3073
__le32 ack_or_ba_timeout_collision;
3074
struct statistics_tx_non_phy_agg agg;
3075
struct statistics_tx_power tx_power;
3077
} __attribute__ ((packed));
3080
struct statistics_div {
3087
} __attribute__ ((packed));
3089
struct statistics_general {
3091
__le32 temperature_m;
3092
struct statistics_dbg dbg;
3096
__le32 ttl_timestamp;
3097
struct statistics_div div;
3098
__le32 rx_enable_counter;
3102
} __attribute__ ((packed));
3104
#define UCODE_STATISTICS_CLEAR_MSK (0x1 << 0)
3105
#define UCODE_STATISTICS_FREQUENCY_MSK (0x1 << 1)
3106
#define UCODE_STATISTICS_NARROW_BAND_MSK (0x1 << 2)
3109
* REPLY_STATISTICS_CMD = 0x9c,
3110
* 3945 and 4965 identical.
3112
* This command triggers an immediate response containing uCode statistics.
3113
* The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
3115
* If the CLEAR_STATS configuration flag is set, uCode will clear its
3116
* internal copy of the statistics (counters) after issuing the response.
3117
* This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
3119
* If the DISABLE_NOTIF configuration flag is set, uCode will not issue
3120
* STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
3121
* does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
3123
#define IWL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */
3124
#define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */
3125
struct iwl_statistics_cmd {
3126
__le32 configuration_flags; /* IWL_STATS_CONF_* */
3127
} __attribute__ ((packed));
3130
* STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
3132
* By default, uCode issues this notification after receiving a beacon
3133
* while associated. To disable this behavior, set DISABLE_NOTIF flag in the
3134
* REPLY_STATISTICS_CMD 0x9c, above.
3136
* Statistics counters continue to increment beacon after beacon, but are
3137
* cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
3138
* 0x9c with CLEAR_STATS bit set (see above).
3140
* uCode also issues this notification during scans. uCode clears statistics
3141
* appropriately so that each notification contains statistics for only the
3142
* one channel that has just been scanned.
3144
#define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2)
3145
#define STATISTICS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8)
3147
struct iwl3945_notif_statistics {
3149
struct iwl39_statistics_rx rx;
3150
struct iwl39_statistics_tx tx;
3151
struct iwl39_statistics_general general;
3152
} __attribute__ ((packed));
3154
struct iwl_notif_statistics {
3156
struct statistics_rx rx;
3157
struct statistics_tx tx;
3158
struct statistics_general general;
3159
} __attribute__ ((packed));
3163
* MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
3165
/* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
3166
* then this notification will be sent. */
3167
#define CONSECUTIVE_MISSED_BCONS_TH 20
3169
struct iwl_missed_beacon_notif {
3170
__le32 consequtive_missed_beacons;
3171
__le32 total_missed_becons;
3172
__le32 num_expected_beacons;
3173
__le32 num_recvd_beacons;
3174
} __attribute__ ((packed));
3177
/******************************************************************************
3179
* Rx Calibration Commands:
3181
* With the uCode used for open source drivers, most Tx calibration (except
3182
* for Tx Power) and most Rx calibration is done by uCode during the
3183
* "initialize" phase of uCode boot. Driver must calibrate only:
3185
* 1) Tx power (depends on temperature), described elsewhere
3186
* 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas)
3187
* 3) Receiver sensitivity (to optimize signal detection)
3189
*****************************************************************************/
3192
* SENSITIVITY_CMD = 0xa8 (command, has simple generic response)
3194
* This command sets up the Rx signal detector for a sensitivity level that
3195
* is high enough to lock onto all signals within the associated network,
3196
* but low enough to ignore signals that are below a certain threshold, so as
3197
* not to have too many "false alarms". False alarms are signals that the
3198
* Rx DSP tries to lock onto, but then discards after determining that they
3201
* The optimum number of false alarms is between 5 and 50 per 200 TUs
3202
* (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
3203
* time listening, not transmitting). Driver must adjust sensitivity so that
3204
* the ratio of actual false alarms to actual Rx time falls within this range.
3206
* While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
3207
* received beacon. These provide information to the driver to analyze the
3208
* sensitivity. Don't analyze statistics that come in from scanning, or any
3209
* other non-associated-network source. Pertinent statistics include:
3211
* From "general" statistics (struct statistics_rx_non_phy):
3213
* (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
3214
* Measure of energy of desired signal. Used for establishing a level
3215
* below which the device does not detect signals.
3217
* (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
3218
* Measure of background noise in silent period after beacon.
3221
* uSecs of actual Rx time during beacon period (varies according to
3222
* how much time was spent transmitting).
3224
* From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
3227
* Signal locks abandoned early (before phy-level header).
3230
* Signal locks abandoned late (during phy-level header).
3232
* NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
3233
* beacon to beacon, i.e. each value is an accumulation of all errors
3234
* before and including the latest beacon. Values will wrap around to 0
3235
* after counting up to 2^32 - 1. Driver must differentiate vs.
3236
* previous beacon's values to determine # false alarms in the current
3239
* Total number of false alarms = false_alarms + plcp_errs
3241
* For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd
3242
* (notice that the start points for OFDM are at or close to settings for
3243
* maximum sensitivity):
3246
* HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
3247
* HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
3248
* HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
3249
* HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
3251
* If actual rate of OFDM false alarms (+ plcp_errors) is too high
3252
* (greater than 50 for each 204.8 msecs listening), reduce sensitivity
3253
* by *adding* 1 to all 4 of the table entries above, up to the max for
3254
* each entry. Conversely, if false alarm rate is too low (less than 5
3255
* for each 204.8 msecs listening), *subtract* 1 from each entry to
3256
* increase sensitivity.
3258
* For CCK sensitivity, keep track of the following:
3260
* 1). 20-beacon history of maximum background noise, indicated by
3261
* (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
3262
* 3 receivers. For any given beacon, the "silence reference" is
3263
* the maximum of last 60 samples (20 beacons * 3 receivers).
3265
* 2). 10-beacon history of strongest signal level, as indicated
3266
* by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
3267
* i.e. the strength of the signal through the best receiver at the
3268
* moment. These measurements are "upside down", with lower values
3269
* for stronger signals, so max energy will be *minimum* value.
3271
* Then for any given beacon, the driver must determine the *weakest*
3272
* of the strongest signals; this is the minimum level that needs to be
3273
* successfully detected, when using the best receiver at the moment.
3274
* "Max cck energy" is the maximum (higher value means lower energy!)
3275
* of the last 10 minima. Once this is determined, driver must add
3276
* a little margin by adding "6" to it.
3278
* 3). Number of consecutive beacon periods with too few false alarms.
3279
* Reset this to 0 at the first beacon period that falls within the
3280
* "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
3282
* Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd
3283
* (notice that the start points for CCK are at maximum sensitivity):
3286
* HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
3287
* HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
3288
* HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
3290
* If actual rate of CCK false alarms (+ plcp_errors) is too high
3291
* (greater than 50 for each 204.8 msecs listening), method for reducing
3294
* 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
3297
* 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
3298
* sensitivity has been reduced a significant amount; bring it up to
3299
* a moderate 161. Otherwise, *add* 3, up to max 200.
3301
* 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
3302
* sensitivity has been reduced only a moderate or small amount;
3303
* *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
3304
* down to min 0. Otherwise (if gain has been significantly reduced),
3305
* don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
3307
* b) Save a snapshot of the "silence reference".
3309
* If actual rate of CCK false alarms (+ plcp_errors) is too low
3310
* (less than 5 for each 204.8 msecs listening), method for increasing
3311
* sensitivity is used only if:
3313
* 1a) Previous beacon did not have too many false alarms
3314
* 1b) AND difference between previous "silence reference" and current
3315
* "silence reference" (prev - current) is 2 or more,
3316
* OR 2) 100 or more consecutive beacon periods have had rate of
3317
* less than 5 false alarms per 204.8 milliseconds rx time.
3319
* Method for increasing sensitivity:
3321
* 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
3324
* 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
3327
* 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
3329
* If actual rate of CCK false alarms (+ plcp_errors) is within good range
3330
* (between 5 and 50 for each 204.8 msecs listening):
3332
* 1) Save a snapshot of the silence reference.
3334
* 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
3335
* give some extra margin to energy threshold by *subtracting* 8
3336
* from value in HD_MIN_ENERGY_CCK_DET_INDEX.
3338
* For all cases (too few, too many, good range), make sure that the CCK
3339
* detection threshold (energy) is below the energy level for robust
3340
* detection over the past 10 beacon periods, the "Max cck energy".
3341
* Lower values mean higher energy; this means making sure that the value
3342
* in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
3347
* Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd)
3349
#define HD_TABLE_SIZE (11) /* number of entries */
3350
#define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */
3351
#define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
3352
#define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
3353
#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
3354
#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
3355
#define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
3356
#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
3357
#define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
3358
#define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
3359
#define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
3360
#define HD_OFDM_ENERGY_TH_IN_INDEX (10)
3362
/* Control field in struct iwl_sensitivity_cmd */
3363
#define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0)
3364
#define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1)
3367
* struct iwl_sensitivity_cmd
3368
* @control: (1) updates working table, (0) updates default table
3369
* @table: energy threshold values, use HD_* as index into table
3371
* Always use "1" in "control" to update uCode's working table and DSP.
3373
struct iwl_sensitivity_cmd {
3374
__le16 control; /* always use "1" */
3375
__le16 table[HD_TABLE_SIZE]; /* use HD_* as index */
3376
} __attribute__ ((packed));
3380
* REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
3382
* This command sets the relative gains of 4965's 3 radio receiver chains.
3384
* After the first association, driver should accumulate signal and noise
3385
* statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
3386
* beacons from the associated network (don't collect statistics that come
3387
* in from scanning, or any other non-network source).
3389
* DISCONNECTED ANTENNA:
3391
* Driver should determine which antennas are actually connected, by comparing
3392
* average beacon signal levels for the 3 Rx chains. Accumulate (add) the
3393
* following values over 20 beacons, one accumulator for each of the chains
3394
* a/b/c, from struct statistics_rx_non_phy:
3396
* beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
3398
* Find the strongest signal from among a/b/c. Compare the other two to the
3399
* strongest. If any signal is more than 15 dB (times 20, unless you
3400
* divide the accumulated values by 20) below the strongest, the driver
3401
* considers that antenna to be disconnected, and should not try to use that
3402
* antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
3403
* driver should declare the stronger one as connected, and attempt to use it
3404
* (A and B are the only 2 Tx chains!).
3409
* Driver should balance the 3 receivers (but just the ones that are connected
3410
* to antennas, see above) for gain, by comparing the average signal levels
3411
* detected during the silence after each beacon (background noise).
3412
* Accumulate (add) the following values over 20 beacons, one accumulator for
3413
* each of the chains a/b/c, from struct statistics_rx_non_phy:
3415
* beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
3417
* Find the weakest background noise level from among a/b/c. This Rx chain
3418
* will be the reference, with 0 gain adjustment. Attenuate other channels by
3419
* finding noise difference:
3421
* (accum_noise[i] - accum_noise[reference]) / 30
3423
* The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
3424
* For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the
3425
* driver should limit the difference results to a range of 0-3 (0-4.5 dB),
3426
* and set bit 2 to indicate "reduce gain". The value for the reference
3427
* (weakest) chain should be "0".
3429
* diff_gain_[abc] bit fields:
3430
* 2: (1) reduce gain, (0) increase gain
3431
* 1-0: amount of gain, units of 1.5 dB
3434
/* Phy calibration command for series */
3437
IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7,
3438
IWL_PHY_CALIBRATE_DC_CMD = 8,
3439
IWL_PHY_CALIBRATE_LO_CMD = 9,
3440
IWL_PHY_CALIBRATE_RX_BB_CMD = 10,
3441
IWL_PHY_CALIBRATE_TX_IQ_CMD = 11,
3442
IWL_PHY_CALIBRATE_RX_IQ_CMD = 12,
3443
IWL_PHY_CALIBRATION_NOISE_CMD = 13,
3444
IWL_PHY_CALIBRATE_AGC_TABLE_CMD = 14,
3445
IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD = 15,
3446
IWL_PHY_CALIBRATE_BASE_BAND_CMD = 16,
3447
IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD = 17,
3448
IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD = 18,
3449
IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD = 19,
3453
#define IWL_CALIB_INIT_CFG_ALL cpu_to_le32(0xffffffff)
3455
struct iwl_calib_cfg_elmnt_s {
3461
} __attribute__ ((packed));
3463
struct iwl_calib_cfg_status_s {
3464
struct iwl_calib_cfg_elmnt_s once;
3465
struct iwl_calib_cfg_elmnt_s perd;
3467
} __attribute__ ((packed));
3469
struct iwl_calib_cfg_cmd {
3470
struct iwl_calib_cfg_status_s ucd_calib_cfg;
3471
struct iwl_calib_cfg_status_s drv_calib_cfg;
3473
} __attribute__ ((packed));
3475
struct iwl_calib_hdr {
3480
} __attribute__ ((packed));
3482
struct iwl_calib_cmd {
3483
struct iwl_calib_hdr hdr;
3485
} __attribute__ ((packed));
3487
/* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
3488
struct iwl_calib_diff_gain_cmd {
3489
struct iwl_calib_hdr hdr;
3490
s8 diff_gain_a; /* see above */
3494
} __attribute__ ((packed));
3496
struct iwl_calib_xtal_freq_cmd {
3497
struct iwl_calib_hdr hdr;
3501
} __attribute__ ((packed));
3503
/* IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */
3504
struct iwl_calib_chain_noise_reset_cmd {
3505
struct iwl_calib_hdr hdr;
3509
/* IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD */
3510
struct iwl_calib_chain_noise_gain_cmd {
3511
struct iwl_calib_hdr hdr;
3515
} __attribute__ ((packed));
3517
/******************************************************************************
3519
* Miscellaneous Commands:
3521
*****************************************************************************/
3524
* LEDs Command & Response
3525
* REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
3527
* For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
3528
* this command turns it on or off, or sets up a periodic blinking cycle.
3530
struct iwl_led_cmd {
3531
__le32 interval; /* "interval" in uSec */
3532
u8 id; /* 1: Activity, 2: Link, 3: Tech */
3533
u8 off; /* # intervals off while blinking;
3534
* "0", with >0 "on" value, turns LED on */
3535
u8 on; /* # intervals on while blinking;
3536
* "0", regardless of "off", turns LED off */
3538
} __attribute__ ((packed));
3541
* station priority table entries
3542
* also used as potential "events" value for both
3543
* COEX_MEDIUM_NOTIFICATION and COEX_EVENT_CMD
3547
* COEX events entry flag masks
3548
* RP - Requested Priority
3549
* WP - Win Medium Priority: priority assigned when the contention has been won
3551
#define COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG (0x1)
3552
#define COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG (0x2)
3553
#define COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG (0x4)
3555
#define COEX_CU_UNASSOC_IDLE_RP 4
3556
#define COEX_CU_UNASSOC_MANUAL_SCAN_RP 4
3557
#define COEX_CU_UNASSOC_AUTO_SCAN_RP 4
3558
#define COEX_CU_CALIBRATION_RP 4
3559
#define COEX_CU_PERIODIC_CALIBRATION_RP 4
3560
#define COEX_CU_CONNECTION_ESTAB_RP 4
3561
#define COEX_CU_ASSOCIATED_IDLE_RP 4
3562
#define COEX_CU_ASSOC_MANUAL_SCAN_RP 4
3563
#define COEX_CU_ASSOC_AUTO_SCAN_RP 4
3564
#define COEX_CU_ASSOC_ACTIVE_LEVEL_RP 4
3565
#define COEX_CU_RF_ON_RP 6
3566
#define COEX_CU_RF_OFF_RP 4
3567
#define COEX_CU_STAND_ALONE_DEBUG_RP 6
3568
#define COEX_CU_IPAN_ASSOC_LEVEL_RP 4
3569
#define COEX_CU_RSRVD1_RP 4
3570
#define COEX_CU_RSRVD2_RP 4
3572
#define COEX_CU_UNASSOC_IDLE_WP 3
3573
#define COEX_CU_UNASSOC_MANUAL_SCAN_WP 3
3574
#define COEX_CU_UNASSOC_AUTO_SCAN_WP 3
3575
#define COEX_CU_CALIBRATION_WP 3
3576
#define COEX_CU_PERIODIC_CALIBRATION_WP 3
3577
#define COEX_CU_CONNECTION_ESTAB_WP 3
3578
#define COEX_CU_ASSOCIATED_IDLE_WP 3
3579
#define COEX_CU_ASSOC_MANUAL_SCAN_WP 3
3580
#define COEX_CU_ASSOC_AUTO_SCAN_WP 3
3581
#define COEX_CU_ASSOC_ACTIVE_LEVEL_WP 3
3582
#define COEX_CU_RF_ON_WP 3
3583
#define COEX_CU_RF_OFF_WP 3
3584
#define COEX_CU_STAND_ALONE_DEBUG_WP 6
3585
#define COEX_CU_IPAN_ASSOC_LEVEL_WP 3
3586
#define COEX_CU_RSRVD1_WP 3
3587
#define COEX_CU_RSRVD2_WP 3
3589
#define COEX_UNASSOC_IDLE_FLAGS 0
3590
#define COEX_UNASSOC_MANUAL_SCAN_FLAGS \
3591
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3592
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
3593
#define COEX_UNASSOC_AUTO_SCAN_FLAGS \
3594
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3595
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
3596
#define COEX_CALIBRATION_FLAGS \
3597
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3598
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
3599
#define COEX_PERIODIC_CALIBRATION_FLAGS 0
3601
* COEX_CONNECTION_ESTAB:
3602
* we need DELAY_MEDIUM_FREE_NTFY to let WiMAX disconnect from network.
3604
#define COEX_CONNECTION_ESTAB_FLAGS \
3605
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3606
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG | \
3607
COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG)
3608
#define COEX_ASSOCIATED_IDLE_FLAGS 0
3609
#define COEX_ASSOC_MANUAL_SCAN_FLAGS \
3610
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3611
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
3612
#define COEX_ASSOC_AUTO_SCAN_FLAGS \
3613
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3614
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
3615
#define COEX_ASSOC_ACTIVE_LEVEL_FLAGS 0
3616
#define COEX_RF_ON_FLAGS 0
3617
#define COEX_RF_OFF_FLAGS 0
3618
#define COEX_STAND_ALONE_DEBUG_FLAGS \
3619
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3620
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
3621
#define COEX_IPAN_ASSOC_LEVEL_FLAGS \
3622
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3623
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG | \
3624
COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG)
3625
#define COEX_RSRVD1_FLAGS 0
3626
#define COEX_RSRVD2_FLAGS 0
3628
* COEX_CU_RF_ON is the event wrapping all radio ownership.
3629
* We need DELAY_MEDIUM_FREE_NTFY to let WiMAX disconnect from network.
3631
#define COEX_CU_RF_ON_FLAGS \
3632
(COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG | \
3633
COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG | \
3634
COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG)
3638
/* un-association part */
3639
COEX_UNASSOC_IDLE = 0,
3640
COEX_UNASSOC_MANUAL_SCAN = 1,
3641
COEX_UNASSOC_AUTO_SCAN = 2,
3643
COEX_CALIBRATION = 3,
3644
COEX_PERIODIC_CALIBRATION = 4,
3646
COEX_CONNECTION_ESTAB = 5,
3647
/* association part */
3648
COEX_ASSOCIATED_IDLE = 6,
3649
COEX_ASSOC_MANUAL_SCAN = 7,
3650
COEX_ASSOC_AUTO_SCAN = 8,
3651
COEX_ASSOC_ACTIVE_LEVEL = 9,
3655
COEX_STAND_ALONE_DEBUG = 12,
3657
COEX_IPAN_ASSOC_LEVEL = 13,
3661
COEX_NUM_OF_EVENTS = 16
3665
* Coexistence WIFI/WIMAX Command
3666
* COEX_PRIORITY_TABLE_CMD = 0x5a
3669
struct iwl_wimax_coex_event_entry {
3674
} __attribute__ ((packed));
3676
/* COEX flag masks */
3678
/* Station table is valid */
3679
#define COEX_FLAGS_STA_TABLE_VALID_MSK (0x1)
3680
/* UnMask wake up src at unassociated sleep */
3681
#define COEX_FLAGS_UNASSOC_WA_UNMASK_MSK (0x4)
3682
/* UnMask wake up src at associated sleep */
3683
#define COEX_FLAGS_ASSOC_WA_UNMASK_MSK (0x8)
3684
/* Enable CoEx feature. */
3685
#define COEX_FLAGS_COEX_ENABLE_MSK (0x80)
3687
struct iwl_wimax_coex_cmd {
3690
struct iwl_wimax_coex_event_entry sta_prio[COEX_NUM_OF_EVENTS];
3691
} __attribute__ ((packed));
3694
* Coexistence MEDIUM NOTIFICATION
3695
* COEX_MEDIUM_NOTIFICATION = 0x5b
3697
* notification from uCode to host to indicate medium changes
3702
* bit 0 - 2: medium status
3703
* bit 3: medium change indication
3704
* bit 4 - 31: reserved
3706
/* status option values, (0 - 2 bits) */
3707
#define COEX_MEDIUM_BUSY (0x0) /* radio belongs to WiMAX */
3708
#define COEX_MEDIUM_ACTIVE (0x1) /* radio belongs to WiFi */
3709
#define COEX_MEDIUM_PRE_RELEASE (0x2) /* received radio release */
3710
#define COEX_MEDIUM_MSK (0x7)
3712
/* send notification status (1 bit) */
3713
#define COEX_MEDIUM_CHANGED (0x8)
3714
#define COEX_MEDIUM_CHANGED_MSK (0x8)
3715
#define COEX_MEDIUM_SHIFT (3)
3717
struct iwl_coex_medium_notification {
3720
} __attribute__ ((packed));
3723
* Coexistence EVENT Command
3724
* COEX_EVENT_CMD = 0x5c
3726
* send from host to uCode for coex event request.
3729
#define COEX_EVENT_REQUEST_MSK (0x1)
3731
struct iwl_coex_event_cmd {
3735
} __attribute__ ((packed));
3737
struct iwl_coex_event_resp {
3739
} __attribute__ ((packed));
3742
/******************************************************************************
3744
* Union of all expected notifications/responses:
3746
*****************************************************************************/
3748
struct iwl_rx_packet {
3750
* The first 4 bytes of the RX frame header contain both the RX frame
3751
* size and some flags.
3753
* 31: flag flush RB request
3754
* 30: flag ignore TC (terminal counter) request
3755
* 29: flag fast IRQ request
3757
* 13-00: RX frame size
3760
struct iwl_cmd_header hdr;
3762
struct iwl3945_rx_frame rx_frame;
3763
struct iwl3945_tx_resp tx_resp;
3764
struct iwl3945_beacon_notif beacon_status;
3766
struct iwl_alive_resp alive_frame;
3767
struct iwl_spectrum_notification spectrum_notif;
3768
struct iwl_csa_notification csa_notif;
3769
struct iwl_error_resp err_resp;
3770
struct iwl_card_state_notif card_state_notif;
3771
struct iwl_add_sta_resp add_sta;
3772
struct iwl_rem_sta_resp rem_sta;
3773
struct iwl_sleep_notification sleep_notif;
3774
struct iwl_spectrum_resp spectrum;
3775
struct iwl_notif_statistics stats;
3776
struct iwl_compressed_ba_resp compressed_ba;
3777
struct iwl_missed_beacon_notif missed_beacon;
3778
struct iwl_coex_medium_notification coex_medium_notif;
3779
struct iwl_coex_event_resp coex_event;
3783
} __attribute__ ((packed));
3785
int iwl_agn_check_rxon_cmd(struct iwl_priv *priv);
3787
#endif /* __iwl_commands_h__ */
added
removed
updates/compat-wireless-2.6/drivers/net/wireless/iwlwifi/iwl-commands.h
