| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called LICENSE.GPL. |
| * |
| * Contact Information: |
| * James P. Ketrenos <ipw2100-admin@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| /* |
| * Please use this file (iwl-commands.h) only for uCode API definitions. |
| * Please use iwl-4965-hw.h for hardware-related definitions. |
| * Please use iwl-dev.h for driver implementation definitions. |
| */ |
| |
| #ifndef __iwl4965_commands_h__ |
| #define __iwl4965_commands_h__ |
| |
| enum { |
| REPLY_ALIVE = 0x1, |
| REPLY_ERROR = 0x2, |
| |
| /* RXON and QOS commands */ |
| REPLY_RXON = 0x10, |
| REPLY_RXON_ASSOC = 0x11, |
| REPLY_QOS_PARAM = 0x13, |
| REPLY_RXON_TIMING = 0x14, |
| |
| /* Multi-Station support */ |
| REPLY_ADD_STA = 0x18, |
| REPLY_REMOVE_STA = 0x19, /* not used */ |
| REPLY_REMOVE_ALL_STA = 0x1a, /* not used */ |
| |
| /* Security */ |
| REPLY_WEPKEY = 0x20, |
| |
| /* RX, TX, LEDs */ |
| REPLY_TX = 0x1c, |
| REPLY_RATE_SCALE = 0x47, /* 3945 only */ |
| REPLY_LEDS_CMD = 0x48, |
| REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */ |
| |
| /* 802.11h related */ |
| RADAR_NOTIFICATION = 0x70, /* not used */ |
| REPLY_QUIET_CMD = 0x71, /* not used */ |
| REPLY_CHANNEL_SWITCH = 0x72, |
| CHANNEL_SWITCH_NOTIFICATION = 0x73, |
| REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74, |
| SPECTRUM_MEASURE_NOTIFICATION = 0x75, |
| |
| /* Power Management */ |
| POWER_TABLE_CMD = 0x77, |
| PM_SLEEP_NOTIFICATION = 0x7A, |
| PM_DEBUG_STATISTIC_NOTIFIC = 0x7B, |
| |
| /* Scan commands and notifications */ |
| REPLY_SCAN_CMD = 0x80, |
| REPLY_SCAN_ABORT_CMD = 0x81, |
| SCAN_START_NOTIFICATION = 0x82, |
| SCAN_RESULTS_NOTIFICATION = 0x83, |
| SCAN_COMPLETE_NOTIFICATION = 0x84, |
| |
| /* IBSS/AP commands */ |
| BEACON_NOTIFICATION = 0x90, |
| REPLY_TX_BEACON = 0x91, |
| WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */ |
| |
| /* Miscellaneous commands */ |
| QUIET_NOTIFICATION = 0x96, /* not used */ |
| REPLY_TX_PWR_TABLE_CMD = 0x97, |
| MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */ |
| |
| /* Bluetooth device coexistance config command */ |
| REPLY_BT_CONFIG = 0x9b, |
| |
| /* Statistics */ |
| REPLY_STATISTICS_CMD = 0x9c, |
| STATISTICS_NOTIFICATION = 0x9d, |
| |
| /* RF-KILL commands and notifications */ |
| REPLY_CARD_STATE_CMD = 0xa0, |
| CARD_STATE_NOTIFICATION = 0xa1, |
| |
| /* Missed beacons notification */ |
| MISSED_BEACONS_NOTIFICATION = 0xa2, |
| |
| REPLY_CT_KILL_CONFIG_CMD = 0xa4, |
| SENSITIVITY_CMD = 0xa8, |
| REPLY_PHY_CALIBRATION_CMD = 0xb0, |
| REPLY_RX_PHY_CMD = 0xc0, |
| REPLY_RX_MPDU_CMD = 0xc1, |
| REPLY_RX = 0xc3, |
| REPLY_COMPRESSED_BA = 0xc5, |
| REPLY_MAX = 0xff |
| }; |
| |
| /****************************************************************************** |
| * (0) |
| * Commonly used structures and definitions: |
| * Command header, rate_n_flags, txpower |
| * |
| *****************************************************************************/ |
| |
| /* iwl_cmd_header flags value */ |
| #define IWL_CMD_FAILED_MSK 0x40 |
| |
| /** |
| * struct iwl_cmd_header |
| * |
| * This header format appears in the beginning of each command sent from the |
| * driver, and each response/notification received from uCode. |
| */ |
| struct iwl_cmd_header { |
| u8 cmd; /* Command ID: REPLY_RXON, etc. */ |
| u8 flags; /* IWL_CMD_* */ |
| /* |
| * The driver sets up the sequence number to values of its chosing. |
| * uCode does not use this value, but passes it back to the driver |
| * when sending the response to each driver-originated command, so |
| * the driver can match the response to the command. Since the values |
| * don't get used by uCode, the driver may set up an arbitrary format. |
| * |
| * There is one exception: uCode sets bit 15 when it originates |
| * the response/notification, i.e. when the response/notification |
| * is not a direct response to a command sent by the driver. For |
| * example, uCode issues REPLY_3945_RX when it sends a received frame |
| * to the driver; it is not a direct response to any driver command. |
| * |
| * The Linux driver uses the following format: |
| * |
| * 0:7 index/position within Tx queue |
| * 8:13 Tx queue selection |
| * 14:14 driver sets this to indicate command is in the 'huge' |
| * storage at the end of the command buffers, i.e. scan cmd |
| * 15:15 uCode sets this in uCode-originated response/notification |
| */ |
| __le16 sequence; |
| |
| /* command or response/notification data follows immediately */ |
| u8 data[0]; |
| } __attribute__ ((packed)); |
| |
| /** |
| * 4965 rate_n_flags bit fields |
| * |
| * rate_n_flags format is used in following 4965 commands: |
| * REPLY_RX (response only) |
| * REPLY_TX (both command and response) |
| * REPLY_TX_LINK_QUALITY_CMD |
| * |
| * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"): |
| * 2-0: 0) 6 Mbps |
| * 1) 12 Mbps |
| * 2) 18 Mbps |
| * 3) 24 Mbps |
| * 4) 36 Mbps |
| * 5) 48 Mbps |
| * 6) 54 Mbps |
| * 7) 60 Mbps |
| * |
| * 3: 0) Single stream (SISO) |
| * 1) Dual stream (MIMO) |
| * |
| * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data |
| * |
| * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"): |
| * 3-0: 0xD) 6 Mbps |
| * 0xF) 9 Mbps |
| * 0x5) 12 Mbps |
| * 0x7) 18 Mbps |
| * 0x9) 24 Mbps |
| * 0xB) 36 Mbps |
| * 0x1) 48 Mbps |
| * 0x3) 54 Mbps |
| * |
| * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"): |
| * 3-0: 10) 1 Mbps |
| * 20) 2 Mbps |
| * 55) 5.5 Mbps |
| * 110) 11 Mbps |
| */ |
| #define RATE_MCS_CODE_MSK 0x7 |
| #define RATE_MCS_MIMO_POS 3 |
| #define RATE_MCS_MIMO_MSK 0x8 |
| #define RATE_MCS_HT_DUP_POS 5 |
| #define RATE_MCS_HT_DUP_MSK 0x20 |
| |
| /* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */ |
| #define RATE_MCS_FLAGS_POS 8 |
| #define RATE_MCS_HT_POS 8 |
| #define RATE_MCS_HT_MSK 0x100 |
| |
| /* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */ |
| #define RATE_MCS_CCK_POS 9 |
| #define RATE_MCS_CCK_MSK 0x200 |
| |
| /* Bit 10: (1) Use Green Field preamble */ |
| #define RATE_MCS_GF_POS 10 |
| #define RATE_MCS_GF_MSK 0x400 |
| |
| /* Bit 11: (1) Use 40Mhz FAT chnl width, (0) use 20 MHz legacy chnl width */ |
| #define RATE_MCS_FAT_POS 11 |
| #define RATE_MCS_FAT_MSK 0x800 |
| |
| /* Bit 12: (1) Duplicate data on both 20MHz chnls. FAT (bit 11) must be set. */ |
| #define RATE_MCS_DUP_POS 12 |
| #define RATE_MCS_DUP_MSK 0x1000 |
| |
| /* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */ |
| #define RATE_MCS_SGI_POS 13 |
| #define RATE_MCS_SGI_MSK 0x2000 |
| |
| /** |
| * rate_n_flags Tx antenna masks (4965 has 2 transmitters): |
| * bit14:15 01 B inactive, A active |
| * 10 B active, A inactive |
| * 11 Both active |
| */ |
| #define RATE_MCS_ANT_POS 14 |
| #define RATE_MCS_ANT_A_MSK 0x04000 |
| #define RATE_MCS_ANT_B_MSK 0x08000 |
| #define RATE_MCS_ANT_C_MSK 0x10000 |
| #define RATE_MCS_ANT_ABC_MSK 0x1C000 |
| |
| |
| /** |
| * struct iwl4965_tx_power - txpower format used in REPLY_SCAN_CMD |
| * |
| * Scan uses only one transmitter, so only one analog/dsp gain pair is needed. |
| */ |
| struct iwl4965_tx_power { |
| u8 tx_gain; /* gain for analog radio */ |
| u8 dsp_atten; /* gain for DSP */ |
| } __attribute__ ((packed)); |
| |
| #define POWER_TABLE_NUM_ENTRIES 33 |
| #define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32 |
| #define POWER_TABLE_CCK_ENTRY 32 |
| |
| /** |
| * union iwl4965_tx_power_dual_stream |
| * |
| * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH |
| * Use __le32 version (struct tx_power_dual_stream) when building command. |
| * |
| * Driver provides radio gain and DSP attenuation settings to device in pairs, |
| * one value for each transmitter chain. The first value is for transmitter A, |
| * second for transmitter B. |
| * |
| * For SISO bit rates, both values in a pair should be identical. |
| * For MIMO rates, one value may be different from the other, |
| * in order to balance the Tx output between the two transmitters. |
| * |
| * See more details in doc for TXPOWER in iwl-4965-hw.h. |
| */ |
| union iwl4965_tx_power_dual_stream { |
| struct { |
| u8 radio_tx_gain[2]; |
| u8 dsp_predis_atten[2]; |
| } s; |
| u32 dw; |
| }; |
| |
| /** |
| * struct tx_power_dual_stream |
| * |
| * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH |
| * |
| * Same format as iwl_tx_power_dual_stream, but __le32 |
| */ |
| struct tx_power_dual_stream { |
| __le32 dw; |
| } __attribute__ ((packed)); |
| |
| /** |
| * struct iwl4965_tx_power_db |
| * |
| * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH |
| */ |
| struct iwl4965_tx_power_db { |
| struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES]; |
| } __attribute__ ((packed)); |
| |
| |
| /****************************************************************************** |
| * (0a) |
| * Alive and Error Commands & Responses: |
| * |
| *****************************************************************************/ |
| |
| #define UCODE_VALID_OK __constant_cpu_to_le32(0x1) |
| #define INITIALIZE_SUBTYPE (9) |
| |
| /* |
| * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command) |
| * |
| * uCode issues this "initialize alive" notification once the initialization |
| * uCode image has completed its work, and is ready to load the runtime image. |
| * This is the *first* "alive" notification that the driver will receive after |
| * rebooting uCode; the "initialize" alive is indicated by subtype field == 9. |
| * |
| * See comments documenting "BSM" (bootstrap state machine). |
| * |
| * For 4965, this notification contains important calibration data for |
| * calculating txpower settings: |
| * |
| * 1) Power supply voltage indication. The voltage sensor outputs higher |
| * values for lower voltage, and vice versa. |
| * |
| * 2) Temperature measurement parameters, for each of two channel widths |
| * (20 MHz and 40 MHz) supported by the radios. Temperature sensing |
| * is done via one of the receiver chains, and channel width influences |
| * the results. |
| * |
| * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation, |
| * for each of 5 frequency ranges. |
| */ |
| struct iwl4965_init_alive_resp { |
| u8 ucode_minor; |
| u8 ucode_major; |
| __le16 reserved1; |
| u8 sw_rev[8]; |
| u8 ver_type; |
| u8 ver_subtype; /* "9" for initialize alive */ |
| __le16 reserved2; |
| __le32 log_event_table_ptr; |
| __le32 error_event_table_ptr; |
| __le32 timestamp; |
| __le32 is_valid; |
| |
| /* calibration values from "initialize" uCode */ |
| __le32 voltage; /* signed, higher value is lower voltage */ |
| __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for FAT channel*/ |
| __le32 therm_r2[2]; /* signed */ |
| __le32 therm_r3[2]; /* signed */ |
| __le32 therm_r4[2]; /* signed */ |
| __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups, |
| * 2 Tx chains */ |
| } __attribute__ ((packed)); |
| |
| |
| /** |
| * REPLY_ALIVE = 0x1 (response only, not a command) |
| * |
| * uCode issues this "alive" notification once the runtime image is ready |
| * to receive commands from the driver. This is the *second* "alive" |
| * notification that the driver will receive after rebooting uCode; |
| * this "alive" is indicated by subtype field != 9. |
| * |
| * See comments documenting "BSM" (bootstrap state machine). |
| * |
| * This response includes two pointers to structures within the device's |
| * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging: |
| * |
| * 1) log_event_table_ptr indicates base of the event log. This traces |
| * a 256-entry history of uCode execution within a circular buffer. |
| * Its header format is: |
| * |
| * __le32 log_size; log capacity (in number of entries) |
| * __le32 type; (1) timestamp with each entry, (0) no timestamp |
| * __le32 wraps; # times uCode has wrapped to top of circular buffer |
| * __le32 write_index; next circular buffer entry that uCode would fill |
| * |
| * The header is followed by the circular buffer of log entries. Entries |
| * with timestamps have the following format: |
| * |
| * __le32 event_id; range 0 - 1500 |
| * __le32 timestamp; low 32 bits of TSF (of network, if associated) |
| * __le32 data; event_id-specific data value |
| * |
| * Entries without timestamps contain only event_id and data. |
| * |
| * 2) error_event_table_ptr indicates base of the error log. This contains |
| * information about any uCode error that occurs. For 4965, the format |
| * of the error log is: |
| * |
| * __le32 valid; (nonzero) valid, (0) log is empty |
| * __le32 error_id; type of error |
| * __le32 pc; program counter |
| * __le32 blink1; branch link |
| * __le32 blink2; branch link |
| * __le32 ilink1; interrupt link |
| * __le32 ilink2; interrupt link |
| * __le32 data1; error-specific data |
| * __le32 data2; error-specific data |
| * __le32 line; source code line of error |
| * __le32 bcon_time; beacon timer |
| * __le32 tsf_low; network timestamp function timer |
| * __le32 tsf_hi; network timestamp function timer |
| * |
| * The Linux driver can print both logs to the system log when a uCode error |
| * occurs. |
| */ |
| struct iwl4965_alive_resp { |
| u8 ucode_minor; |
| u8 ucode_major; |
| __le16 reserved1; |
| u8 sw_rev[8]; |
| u8 ver_type; |
| u8 ver_subtype; /* not "9" for runtime alive */ |
| __le16 reserved2; |
| __le32 log_event_table_ptr; /* SRAM address for event log */ |
| __le32 error_event_table_ptr; /* SRAM address for error log */ |
| __le32 timestamp; |
| __le32 is_valid; |
| } __attribute__ ((packed)); |
| |
| |
| union tsf { |
| u8 byte[8]; |
| __le16 word[4]; |
| __le32 dw[2]; |
| }; |
| |
| /* |
| * REPLY_ERROR = 0x2 (response only, not a command) |
| */ |
| struct iwl4965_error_resp { |
| __le32 error_type; |
| u8 cmd_id; |
| u8 reserved1; |
| __le16 bad_cmd_seq_num; |
| __le32 error_info; |
| union tsf timestamp; |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (1) |
| * RXON Commands & Responses: |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Rx config defines & structure |
| */ |
| /* rx_config device types */ |
| enum { |
| RXON_DEV_TYPE_AP = 1, |
| RXON_DEV_TYPE_ESS = 3, |
| RXON_DEV_TYPE_IBSS = 4, |
| RXON_DEV_TYPE_SNIFFER = 6, |
| }; |
| |
| |
| #define RXON_RX_CHAIN_DRIVER_FORCE_MSK __constant_cpu_to_le16(0x1 << 0) |
| #define RXON_RX_CHAIN_VALID_MSK __constant_cpu_to_le16(0x7 << 1) |
| #define RXON_RX_CHAIN_VALID_POS (1) |
| #define RXON_RX_CHAIN_FORCE_SEL_MSK __constant_cpu_to_le16(0x7 << 4) |
| #define RXON_RX_CHAIN_FORCE_SEL_POS (4) |
| #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK __constant_cpu_to_le16(0x7 << 7) |
| #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7) |
| #define RXON_RX_CHAIN_CNT_MSK __constant_cpu_to_le16(0x3 << 10) |
| #define RXON_RX_CHAIN_CNT_POS (10) |
| #define RXON_RX_CHAIN_MIMO_CNT_MSK __constant_cpu_to_le16(0x3 << 12) |
| #define RXON_RX_CHAIN_MIMO_CNT_POS (12) |
| #define RXON_RX_CHAIN_MIMO_FORCE_MSK __constant_cpu_to_le16(0x1 << 14) |
| #define RXON_RX_CHAIN_MIMO_FORCE_POS (14) |
| |
| /* rx_config flags */ |
| /* band & modulation selection */ |
| #define RXON_FLG_BAND_24G_MSK __constant_cpu_to_le32(1 << 0) |
| #define RXON_FLG_CCK_MSK __constant_cpu_to_le32(1 << 1) |
| /* auto detection enable */ |
| #define RXON_FLG_AUTO_DETECT_MSK __constant_cpu_to_le32(1 << 2) |
| /* TGg protection when tx */ |
| #define RXON_FLG_TGG_PROTECT_MSK __constant_cpu_to_le32(1 << 3) |
| /* cck short slot & preamble */ |
| #define RXON_FLG_SHORT_SLOT_MSK __constant_cpu_to_le32(1 << 4) |
| #define RXON_FLG_SHORT_PREAMBLE_MSK __constant_cpu_to_le32(1 << 5) |
| /* antenna selection */ |
| #define RXON_FLG_DIS_DIV_MSK __constant_cpu_to_le32(1 << 7) |
| #define RXON_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0x0f00) |
| #define RXON_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8) |
| #define RXON_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9) |
| /* radar detection enable */ |
| #define RXON_FLG_RADAR_DETECT_MSK __constant_cpu_to_le32(1 << 12) |
| #define RXON_FLG_TGJ_NARROW_BAND_MSK __constant_cpu_to_le32(1 << 13) |
| /* rx response to host with 8-byte TSF |
| * (according to ON_AIR deassertion) */ |
| #define RXON_FLG_TSF2HOST_MSK __constant_cpu_to_le32(1 << 15) |
| |
| |
| /* HT flags */ |
| #define RXON_FLG_CTRL_CHANNEL_LOC_POS (22) |
| #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK __constant_cpu_to_le32(0x1 << 22) |
| |
| #define RXON_FLG_HT_OPERATING_MODE_POS (23) |
| |
| #define RXON_FLG_HT_PROT_MSK __constant_cpu_to_le32(0x1 << 23) |
| #define RXON_FLG_FAT_PROT_MSK __constant_cpu_to_le32(0x2 << 23) |
| |
| #define RXON_FLG_CHANNEL_MODE_POS (25) |
| #define RXON_FLG_CHANNEL_MODE_MSK __constant_cpu_to_le32(0x3 << 25) |
| #define RXON_FLG_CHANNEL_MODE_PURE_40_MSK __constant_cpu_to_le32(0x1 << 25) |
| #define RXON_FLG_CHANNEL_MODE_MIXED_MSK __constant_cpu_to_le32(0x2 << 25) |
| |
| /* rx_config filter flags */ |
| /* accept all data frames */ |
| #define RXON_FILTER_PROMISC_MSK __constant_cpu_to_le32(1 << 0) |
| /* pass control & management to host */ |
| #define RXON_FILTER_CTL2HOST_MSK __constant_cpu_to_le32(1 << 1) |
| /* accept multi-cast */ |
| #define RXON_FILTER_ACCEPT_GRP_MSK __constant_cpu_to_le32(1 << 2) |
| /* don't decrypt uni-cast frames */ |
| #define RXON_FILTER_DIS_DECRYPT_MSK __constant_cpu_to_le32(1 << 3) |
| /* don't decrypt multi-cast frames */ |
| #define RXON_FILTER_DIS_GRP_DECRYPT_MSK __constant_cpu_to_le32(1 << 4) |
| /* STA is associated */ |
| #define RXON_FILTER_ASSOC_MSK __constant_cpu_to_le32(1 << 5) |
| /* transfer to host non bssid beacons in associated state */ |
| #define RXON_FILTER_BCON_AWARE_MSK __constant_cpu_to_le32(1 << 6) |
| |
| /** |
| * REPLY_RXON = 0x10 (command, has simple generic response) |
| * |
| * RXON tunes the radio tuner to a service channel, and sets up a number |
| * of parameters that are used primarily for Rx, but also for Tx operations. |
| * |
| * NOTE: When tuning to a new channel, driver must set the |
| * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent |
| * info within the device, including the station tables, tx retry |
| * rate tables, and txpower tables. Driver must build a new station |
| * table and txpower table before transmitting anything on the RXON |
| * channel. |
| * |
| * NOTE: All RXONs wipe clean the internal txpower table. Driver must |
| * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10), |
| * regardless of whether RXON_FILTER_ASSOC_MSK is set. |
| */ |
| struct iwl4965_rxon_cmd { |
| u8 node_addr[6]; |
| __le16 reserved1; |
| u8 bssid_addr[6]; |
| __le16 reserved2; |
| u8 wlap_bssid_addr[6]; |
| __le16 reserved3; |
| u8 dev_type; |
| u8 air_propagation; |
| __le16 rx_chain; |
| u8 ofdm_basic_rates; |
| u8 cck_basic_rates; |
| __le16 assoc_id; |
| __le32 flags; |
| __le32 filter_flags; |
| __le16 channel; |
| u8 ofdm_ht_single_stream_basic_rates; |
| u8 ofdm_ht_dual_stream_basic_rates; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response) |
| */ |
| struct iwl4965_rxon_assoc_cmd { |
| __le32 flags; |
| __le32 filter_flags; |
| u8 ofdm_basic_rates; |
| u8 cck_basic_rates; |
| u8 ofdm_ht_single_stream_basic_rates; |
| u8 ofdm_ht_dual_stream_basic_rates; |
| __le16 rx_chain_select_flags; |
| __le16 reserved; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_RXON_TIMING = 0x14 (command, has simple generic response) |
| */ |
| struct iwl4965_rxon_time_cmd { |
| union tsf timestamp; |
| __le16 beacon_interval; |
| __le16 atim_window; |
| __le32 beacon_init_val; |
| __le16 listen_interval; |
| __le16 reserved; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response) |
| */ |
| struct iwl4965_channel_switch_cmd { |
| u8 band; |
| u8 expect_beacon; |
| __le16 channel; |
| __le32 rxon_flags; |
| __le32 rxon_filter_flags; |
| __le32 switch_time; |
| struct iwl4965_tx_power_db tx_power; |
| } __attribute__ ((packed)); |
| |
| /* |
| * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command) |
| */ |
| struct iwl4965_csa_notification { |
| __le16 band; |
| __le16 channel; |
| __le32 status; /* 0 - OK, 1 - fail */ |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (2) |
| * Quality-of-Service (QOS) Commands & Responses: |
| * |
| *****************************************************************************/ |
| |
| /** |
| * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM |
| * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd |
| * |
| * @cw_min: Contention window, start value in numbers of slots. |
| * Should be a power-of-2, minus 1. Device's default is 0x0f. |
| * @cw_max: Contention window, max value in numbers of slots. |
| * Should be a power-of-2, minus 1. Device's default is 0x3f. |
| * @aifsn: Number of slots in Arbitration Interframe Space (before |
| * performing random backoff timing prior to Tx). Device default 1. |
| * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0. |
| * |
| * Device will automatically increase contention window by (2*CW) + 1 for each |
| * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW |
| * value, to cap the CW value. |
| */ |
| struct iwl4965_ac_qos { |
| __le16 cw_min; |
| __le16 cw_max; |
| u8 aifsn; |
| u8 reserved1; |
| __le16 edca_txop; |
| } __attribute__ ((packed)); |
| |
| /* QoS flags defines */ |
| #define QOS_PARAM_FLG_UPDATE_EDCA_MSK __constant_cpu_to_le32(0x01) |
| #define QOS_PARAM_FLG_TGN_MSK __constant_cpu_to_le32(0x02) |
| #define QOS_PARAM_FLG_TXOP_TYPE_MSK __constant_cpu_to_le32(0x10) |
| |
| /* Number of Access Categories (AC) (EDCA), queues 0..3 */ |
| #define AC_NUM 4 |
| |
| /* |
| * REPLY_QOS_PARAM = 0x13 (command, has simple generic response) |
| * |
| * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs |
| * 0: Background, 1: Best Effort, 2: Video, 3: Voice. |
| */ |
| struct iwl4965_qosparam_cmd { |
| __le32 qos_flags; |
| struct iwl4965_ac_qos ac[AC_NUM]; |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (3) |
| * Add/Modify Stations Commands & Responses: |
| * |
| *****************************************************************************/ |
| /* |
| * Multi station support |
| */ |
| |
| /* Special, dedicated locations within device's station table */ |
| #define IWL_AP_ID 0 |
| #define IWL_MULTICAST_ID 1 |
| #define IWL_STA_ID 2 |
| #define IWL4965_BROADCAST_ID 31 |
| #define IWL4965_STATION_COUNT 32 |
| #define IWL5000_BROADCAST_ID 15 |
| #define IWL5000_STATION_COUNT 16 |
| |
| #define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/ |
| #define IWL_INVALID_STATION 255 |
| |
| #define STA_FLG_PWR_SAVE_MSK __constant_cpu_to_le32(1 << 8); |
| #define STA_FLG_RTS_MIMO_PROT_MSK __constant_cpu_to_le32(1 << 17) |
| #define STA_FLG_AGG_MPDU_8US_MSK __constant_cpu_to_le32(1 << 18) |
| #define STA_FLG_MAX_AGG_SIZE_POS (19) |
| #define STA_FLG_MAX_AGG_SIZE_MSK __constant_cpu_to_le32(3 << 19) |
| #define STA_FLG_FAT_EN_MSK __constant_cpu_to_le32(1 << 21) |
| #define STA_FLG_MIMO_DIS_MSK __constant_cpu_to_le32(1 << 22) |
| #define STA_FLG_AGG_MPDU_DENSITY_POS (23) |
| #define STA_FLG_AGG_MPDU_DENSITY_MSK __constant_cpu_to_le32(7 << 23) |
| |
| /* Use in mode field. 1: modify existing entry, 0: add new station entry */ |
| #define STA_CONTROL_MODIFY_MSK 0x01 |
| |
| /* key flags __le16*/ |
| #define STA_KEY_FLG_ENCRYPT_MSK __constant_cpu_to_le16(0x0007) |
| #define STA_KEY_FLG_NO_ENC __constant_cpu_to_le16(0x0000) |
| #define STA_KEY_FLG_WEP __constant_cpu_to_le16(0x0001) |
| #define STA_KEY_FLG_CCMP __constant_cpu_to_le16(0x0002) |
| #define STA_KEY_FLG_TKIP __constant_cpu_to_le16(0x0003) |
| |
| #define STA_KEY_FLG_KEYID_POS 8 |
| #define STA_KEY_FLG_INVALID __constant_cpu_to_le16(0x0800) |
| /* wep key is either from global key (0) or from station info array (1) */ |
| #define STA_KEY_FLG_MAP_KEY_MSK __constant_cpu_to_le16(0x0008) |
| |
| /* wep key in STA: 5-bytes (0) or 13-bytes (1) */ |
| #define STA_KEY_FLG_KEY_SIZE_MSK __constant_cpu_to_le16(0x1000) |
| #define STA_KEY_MULTICAST_MSK __constant_cpu_to_le16(0x4000) |
| #define STA_KEY_MAX_NUM 8 |
| |
| /* Flags indicate whether to modify vs. don't change various station params */ |
| #define STA_MODIFY_KEY_MASK 0x01 |
| #define STA_MODIFY_TID_DISABLE_TX 0x02 |
| #define STA_MODIFY_TX_RATE_MSK 0x04 |
| #define STA_MODIFY_ADDBA_TID_MSK 0x08 |
| #define STA_MODIFY_DELBA_TID_MSK 0x10 |
| |
| /* Receiver address (actually, Rx station's index into station table), |
| * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ |
| #define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) |
| |
| struct iwl4965_keyinfo { |
| __le16 key_flags; |
| u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */ |
| u8 reserved1; |
| __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */ |
| u8 key_offset; |
| u8 reserved2; |
| u8 key[16]; /* 16-byte unicast decryption key */ |
| } __attribute__ ((packed)); |
| |
| /* 5000 */ |
| struct iwl_keyinfo { |
| __le16 key_flags; |
| u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */ |
| u8 reserved1; |
| __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */ |
| u8 key_offset; |
| u8 reserved2; |
| u8 key[16]; /* 16-byte unicast decryption key */ |
| __le64 tx_secur_seq_cnt; |
| __le64 hw_tkip_mic_rx_key; |
| __le64 hw_tkip_mic_tx_key; |
| } __attribute__ ((packed)); |
| |
| /** |
| * struct sta_id_modify |
| * @addr[ETH_ALEN]: station's MAC address |
| * @sta_id: index of station in uCode's station table |
| * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change |
| * |
| * Driver selects unused table index when adding new station, |
| * or the index to a pre-existing station entry when modifying that station. |
| * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP). |
| * |
| * modify_mask flags select which parameters to modify vs. leave alone. |
| */ |
| struct sta_id_modify { |
| u8 addr[ETH_ALEN]; |
| __le16 reserved1; |
| u8 sta_id; |
| u8 modify_mask; |
| __le16 reserved2; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_ADD_STA = 0x18 (command) |
| * |
| * The device contains an internal table of per-station information, |
| * with info on security keys, aggregation parameters, and Tx rates for |
| * initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD, |
| * 3945 uses REPLY_RATE_SCALE to set up rate tables). |
| * |
| * REPLY_ADD_STA sets up the table entry for one station, either creating |
| * a new entry, or modifying a pre-existing one. |
| * |
| * NOTE: RXON command (without "associated" bit set) wipes the station table |
| * clean. Moving into RF_KILL state does this also. Driver must set up |
| * new station table before transmitting anything on the RXON channel |
| * (except active scans or active measurements; those commands carry |
| * their own txpower/rate setup data). |
| * |
| * When getting started on a new channel, driver must set up the |
| * IWL_BROADCAST_ID entry (last entry in the table). For a client |
| * station in a BSS, once an AP is selected, driver sets up the AP STA |
| * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP |
| * are all that are needed for a BSS client station. If the device is |
| * used as AP, or in an IBSS network, driver must set up station table |
| * entries for all STAs in network, starting with index IWL_STA_ID. |
| */ |
| struct iwl4965_addsta_cmd { |
| u8 mode; /* 1: modify existing, 0: add new station */ |
| u8 reserved[3]; |
| struct sta_id_modify sta; |
| struct iwl4965_keyinfo key; |
| __le32 station_flags; /* STA_FLG_* */ |
| __le32 station_flags_msk; /* STA_FLG_* */ |
| |
| /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) |
| * corresponding to bit (e.g. bit 5 controls TID 5). |
| * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ |
| __le16 tid_disable_tx; |
| |
| __le16 reserved1; |
| |
| /* TID for which to add block-ack support. |
| * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ |
| u8 add_immediate_ba_tid; |
| |
| /* TID for which to remove block-ack support. |
| * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ |
| u8 remove_immediate_ba_tid; |
| |
| /* Starting Sequence Number for added block-ack support. |
| * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ |
| __le16 add_immediate_ba_ssn; |
| |
| __le32 reserved2; |
| } __attribute__ ((packed)); |
| |
| /* 5000 */ |
| struct iwl_addsta_cmd { |
| u8 mode; /* 1: modify existing, 0: add new station */ |
| u8 reserved[3]; |
| struct sta_id_modify sta; |
| struct iwl_keyinfo key; |
| __le32 station_flags; /* STA_FLG_* */ |
| __le32 station_flags_msk; /* STA_FLG_* */ |
| |
| /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID) |
| * corresponding to bit (e.g. bit 5 controls TID 5). |
| * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */ |
| __le16 tid_disable_tx; |
| |
| __le16 reserved1; |
| |
| /* TID for which to add block-ack support. |
| * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ |
| u8 add_immediate_ba_tid; |
| |
| /* TID for which to remove block-ack support. |
| * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */ |
| u8 remove_immediate_ba_tid; |
| |
| /* Starting Sequence Number for added block-ack support. |
| * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */ |
| __le16 add_immediate_ba_ssn; |
| |
| __le32 reserved2; |
| } __attribute__ ((packed)); |
| |
| |
| #define ADD_STA_SUCCESS_MSK 0x1 |
| #define ADD_STA_NO_ROOM_IN_TABLE 0x2 |
| #define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4 |
| #define ADD_STA_MODIFY_NON_EXIST_STA 0x8 |
| /* |
| * REPLY_ADD_STA = 0x18 (response) |
| */ |
| struct iwl4965_add_sta_resp { |
| u8 status; /* ADD_STA_* */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_WEP_KEY = 0x20 |
| */ |
| struct iwl_wep_key { |
| u8 key_index; |
| u8 key_offset; |
| u8 reserved1[2]; |
| u8 key_size; |
| u8 reserved2[3]; |
| u8 key[16]; |
| } __attribute__ ((packed)); |
| |
| struct iwl_wep_cmd { |
| u8 num_keys; |
| u8 global_key_type; |
| u8 flags; |
| u8 reserved; |
| struct iwl_wep_key key[0]; |
| } __attribute__ ((packed)); |
| |
| #define WEP_KEY_WEP_TYPE 1 |
| #define WEP_KEYS_MAX 4 |
| #define WEP_INVALID_OFFSET 0xff |
| #define WEP_KEY_LEN_128 13 |
| |
| /****************************************************************************** |
| * (4) |
| * Rx Responses: |
| * |
| *****************************************************************************/ |
| |
| struct iwl4965_rx_frame_stats { |
| u8 phy_count; |
| u8 id; |
| u8 rssi; |
| u8 agc; |
| __le16 sig_avg; |
| __le16 noise_diff; |
| u8 payload[0]; |
| } __attribute__ ((packed)); |
| |
| struct iwl4965_rx_frame_hdr { |
| __le16 channel; |
| __le16 phy_flags; |
| u8 reserved1; |
| u8 rate; |
| __le16 len; |
| u8 payload[0]; |
| } __attribute__ ((packed)); |
| |
| #define RX_RES_STATUS_NO_CRC32_ERROR __constant_cpu_to_le32(1 << 0) |
| #define RX_RES_STATUS_NO_RXE_OVERFLOW __constant_cpu_to_le32(1 << 1) |
| |
| #define RX_RES_PHY_FLAGS_BAND_24_MSK __constant_cpu_to_le16(1 << 0) |
| #define RX_RES_PHY_FLAGS_MOD_CCK_MSK __constant_cpu_to_le16(1 << 1) |
| #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK __constant_cpu_to_le16(1 << 2) |
| #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK __constant_cpu_to_le16(1 << 3) |
| #define RX_RES_PHY_FLAGS_ANTENNA_MSK __constant_cpu_to_le16(0xf0) |
| |
| #define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8) |
| #define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8) |
| #define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8) |
| #define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8) |
| #define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8) |
| #define RX_RES_STATUS_SEC_TYPE_ERR (0x7 << 8) |
| |
| #define RX_RES_STATUS_STATION_FOUND (1<<6) |
| #define RX_RES_STATUS_NO_STATION_INFO_MISMATCH (1<<7) |
| |
| #define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11) |
| #define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11) |
| #define RX_RES_STATUS_DECRYPT_OK (0x3 << 11) |
| #define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11) |
| #define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11) |
| |
| #define RX_MPDU_RES_STATUS_ICV_OK (0x20) |
| #define RX_MPDU_RES_STATUS_MIC_OK (0x40) |
| #define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7) |
| #define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800) |
| |
| struct iwl4965_rx_frame_end { |
| __le32 status; |
| __le64 timestamp; |
| __le32 beacon_timestamp; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_3945_RX = 0x1b (response only, not a command) |
| * |
| * NOTE: DO NOT dereference from casts to this structure |
| * It is provided only for calculating minimum data set size. |
| * The actual offsets of the hdr and end are dynamic based on |
| * stats.phy_count |
| */ |
| struct iwl4965_rx_frame { |
| struct iwl4965_rx_frame_stats stats; |
| struct iwl4965_rx_frame_hdr hdr; |
| struct iwl4965_rx_frame_end end; |
| } __attribute__ ((packed)); |
| |
| /* Fixed (non-configurable) rx data from phy */ |
| #define RX_PHY_FLAGS_ANTENNAE_OFFSET (4) |
| #define RX_PHY_FLAGS_ANTENNAE_MASK (0x70) |
| #define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */ |
| #define IWL_AGC_DB_POS (7) |
| struct iwl4965_rx_non_cfg_phy { |
| __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */ |
| __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */ |
| u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */ |
| u8 pad[0]; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_RX = 0xc3 (response only, not a command) |
| * Used only for legacy (non 11n) frames. |
| */ |
| #define RX_RES_PHY_CNT 14 |
| struct iwl4965_rx_phy_res { |
| u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */ |
| u8 cfg_phy_cnt; /* configurable DSP phy data byte count */ |
| u8 stat_id; /* configurable DSP phy data set ID */ |
| u8 reserved1; |
| __le64 timestamp; /* TSF at on air rise */ |
| __le32 beacon_time_stamp; /* beacon at on-air rise */ |
| __le16 phy_flags; /* general phy flags: band, modulation, ... */ |
| __le16 channel; /* channel number */ |
| __le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */ |
| __le32 reserved2; |
| __le32 rate_n_flags; /* RATE_MCS_* */ |
| __le16 byte_count; /* frame's byte-count */ |
| __le16 reserved3; |
| } __attribute__ ((packed)); |
| |
| struct iwl4965_rx_mpdu_res_start { |
| __le16 byte_count; |
| __le16 reserved; |
| } __attribute__ ((packed)); |
| |
| |
| /****************************************************************************** |
| * (5) |
| * Tx Commands & Responses: |
| * |
| * Driver must place each REPLY_TX command into one of the prioritized Tx |
| * queues in host DRAM, shared between driver and device (see comments for |
| * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode |
| * are preparing to transmit, the device pulls the Tx command over the PCI |
| * bus via one of the device's Tx DMA channels, to fill an internal FIFO |
| * from which data will be transmitted. |
| * |
| * uCode handles all timing and protocol related to control frames |
| * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler |
| * handle reception of block-acks; uCode updates the host driver via |
| * REPLY_COMPRESSED_BA (4965). |
| * |
| * uCode handles retrying Tx when an ACK is expected but not received. |
| * This includes trying lower data rates than the one requested in the Tx |
| * command, as set up by the REPLY_RATE_SCALE (for 3945) or |
| * REPLY_TX_LINK_QUALITY_CMD (4965). |
| * |
| * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD. |
| * This command must be executed after every RXON command, before Tx can occur. |
| *****************************************************************************/ |
| |
| /* REPLY_TX Tx flags field */ |
| |
| /* 1: Use Request-To-Send protocol before this frame. |
| * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */ |
| #define TX_CMD_FLG_RTS_MSK __constant_cpu_to_le32(1 << 1) |
| |
| /* 1: Transmit Clear-To-Send to self before this frame. |
| * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames. |
| * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */ |
| #define TX_CMD_FLG_CTS_MSK __constant_cpu_to_le32(1 << 2) |
| |
| /* 1: Expect ACK from receiving station |
| * 0: Don't expect ACK (MAC header's duration field s/b 0) |
| * Set this for unicast frames, but not broadcast/multicast. */ |
| #define TX_CMD_FLG_ACK_MSK __constant_cpu_to_le32(1 << 3) |
| |
| /* For 4965: |
| * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD). |
| * Tx command's initial_rate_index indicates first rate to try; |
| * uCode walks through table for additional Tx attempts. |
| * 0: Use Tx rate/MCS from Tx command's rate_n_flags field. |
| * This rate will be used for all Tx attempts; it will not be scaled. */ |
| #define TX_CMD_FLG_STA_RATE_MSK __constant_cpu_to_le32(1 << 4) |
| |
| /* 1: Expect immediate block-ack. |
| * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */ |
| #define TX_CMD_FLG_IMM_BA_RSP_MASK __constant_cpu_to_le32(1 << 6) |
| |
| /* 1: Frame requires full Tx-Op protection. |
| * Set this if either RTS or CTS Tx Flag gets set. */ |
| #define TX_CMD_FLG_FULL_TXOP_PROT_MSK __constant_cpu_to_le32(1 << 7) |
| |
| /* Tx antenna selection field; used only for 3945, reserved (0) for 4965. |
| * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */ |
| #define TX_CMD_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0xf00) |
| #define TX_CMD_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8) |
| #define TX_CMD_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9) |
| |
| /* 1: Ignore Bluetooth priority for this frame. |
| * 0: Delay Tx until Bluetooth device is done (normal usage). */ |
| #define TX_CMD_FLG_BT_DIS_MSK __constant_cpu_to_le32(1 << 12) |
| |
| /* 1: uCode overrides sequence control field in MAC header. |
| * 0: Driver provides sequence control field in MAC header. |
| * Set this for management frames, non-QOS data frames, non-unicast frames, |
| * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */ |
| #define TX_CMD_FLG_SEQ_CTL_MSK __constant_cpu_to_le32(1 << 13) |
| |
| /* 1: This frame is non-last MPDU; more fragments are coming. |
| * 0: Last fragment, or not using fragmentation. */ |
| #define TX_CMD_FLG_MORE_FRAG_MSK __constant_cpu_to_le32(1 << 14) |
| |
| /* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame. |
| * 0: No TSF required in outgoing frame. |
| * Set this for transmitting beacons and probe responses. */ |
| #define TX_CMD_FLG_TSF_MSK __constant_cpu_to_le32(1 << 16) |
| |
| /* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword |
| * alignment of frame's payload data field. |
| * 0: No pad |
| * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4 |
| * field (but not both). Driver must align frame data (i.e. data following |
| * MAC header) to DWORD boundary. */ |
| #define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20) |
| |
| /* accelerate aggregation support |
| * 0 - no CCMP encryption; 1 - CCMP encryption */ |
| #define TX_CMD_FLG_AGG_CCMP_MSK __constant_cpu_to_le32(1 << 22) |
| |
| /* HCCA-AP - disable duration overwriting. */ |
| #define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25) |
| |
| |
| /* |
| * TX command security control |
| */ |
| #define TX_CMD_SEC_WEP 0x01 |
| #define TX_CMD_SEC_CCM 0x02 |
| #define TX_CMD_SEC_TKIP 0x03 |
| #define TX_CMD_SEC_MSK 0x03 |
| #define TX_CMD_SEC_SHIFT 6 |
| #define TX_CMD_SEC_KEY128 0x08 |
| |
| /* |
| * security overhead sizes |
| */ |
| #define WEP_IV_LEN 4 |
| #define WEP_ICV_LEN 4 |
| #define CCMP_MIC_LEN 8 |
| #define TKIP_ICV_LEN 4 |
| |
| /* |
| * 4965 uCode updates these Tx attempt count values in host DRAM. |
| * Used for managing Tx retries when expecting block-acks. |
| * Driver should set these fields to 0. |
| */ |
| struct iwl4965_dram_scratch { |
| u8 try_cnt; /* Tx attempts */ |
| u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */ |
| __le16 reserved; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_TX = 0x1c (command) |
| */ |
| struct iwl4965_tx_cmd { |
| /* |
| * MPDU byte count: |
| * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size, |
| * + 8 byte IV for CCM or TKIP (not used for WEP) |
| * + Data payload |
| * + 8-byte MIC (not used for CCM/WEP) |
| * NOTE: Does not include Tx command bytes, post-MAC pad bytes, |
| * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i |
| * Range: 14-2342 bytes. |
| */ |
| __le16 len; |
| |
| /* |
| * MPDU or MSDU byte count for next frame. |
| * Used for fragmentation and bursting, but not 11n aggregation. |
| * Same as "len", but for next frame. Set to 0 if not applicable. |
| */ |
| __le16 next_frame_len; |
| |
| __le32 tx_flags; /* TX_CMD_FLG_* */ |
| |
| /* 4965's uCode may modify this field of the Tx command (in host DRAM!). |
| * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */ |
| struct iwl4965_dram_scratch scratch; |
| |
| /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */ |
| __le32 rate_n_flags; /* RATE_MCS_* */ |
| |
| /* Index of destination station in uCode's station table */ |
| u8 sta_id; |
| |
| /* Type of security encryption: CCM or TKIP */ |
| u8 sec_ctl; /* TX_CMD_SEC_* */ |
| |
| /* |
| * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial |
| * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for |
| * data frames, this field may be used to selectively reduce initial |
| * rate (via non-0 value) for special frames (e.g. management), while |
| * still supporting rate scaling for all frames. |
| */ |
| u8 initial_rate_index; |
| u8 reserved; |
| u8 key[16]; |
| __le16 next_frame_flags; |
| __le16 reserved2; |
| union { |
| __le32 life_time; |
| __le32 attempt; |
| } stop_time; |
| |
| /* Host DRAM physical address pointer to "scratch" in this command. |
| * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */ |
| __le32 dram_lsb_ptr; |
| u8 dram_msb_ptr; |
| |
| u8 rts_retry_limit; /*byte 50 */ |
| u8 data_retry_limit; /*byte 51 */ |
| u8 tid_tspec; |
| union { |
| __le16 pm_frame_timeout; |
| __le16 attempt_duration; |
| } timeout; |
| |
| /* |
| * Duration of EDCA burst Tx Opportunity, in 32-usec units. |
| * Set this if txop time is not specified by HCCA protocol (e.g. by AP). |
| */ |
| __le16 driver_txop; |
| |
| /* |
| * MAC header goes here, followed by 2 bytes padding if MAC header |
| * length is 26 or 30 bytes, followed by payload data |
| */ |
| u8 payload[0]; |
| struct ieee80211_hdr hdr[0]; |
| } __attribute__ ((packed)); |
| |
| /* TX command response is sent after *all* transmission attempts. |
| * |
| * NOTES: |
| * |
| * TX_STATUS_FAIL_NEXT_FRAG |
| * |
| * If the fragment flag in the MAC header for the frame being transmitted |
| * is set and there is insufficient time to transmit the next frame, the |
| * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'. |
| * |
| * TX_STATUS_FIFO_UNDERRUN |
| * |
| * Indicates the host did not provide bytes to the FIFO fast enough while |
| * a TX was in progress. |
| * |
| * TX_STATUS_FAIL_MGMNT_ABORT |
| * |
| * This status is only possible if the ABORT ON MGMT RX parameter was |
| * set to true with the TX command. |
| * |
| * If the MSB of the status parameter is set then an abort sequence is |
| * required. This sequence consists of the host activating the TX Abort |
| * control line, and then waiting for the TX Abort command response. This |
| * indicates that a the device is no longer in a transmit state, and that the |
| * command FIFO has been cleared. The host must then deactivate the TX Abort |
| * control line. Receiving is still allowed in this case. |
| */ |
| enum { |
| TX_STATUS_SUCCESS = 0x01, |
| TX_STATUS_DIRECT_DONE = 0x02, |
| TX_STATUS_FAIL_SHORT_LIMIT = 0x82, |
| TX_STATUS_FAIL_LONG_LIMIT = 0x83, |
| TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84, |
| TX_STATUS_FAIL_MGMNT_ABORT = 0x85, |
| TX_STATUS_FAIL_NEXT_FRAG = 0x86, |
| TX_STATUS_FAIL_LIFE_EXPIRE = 0x87, |
| TX_STATUS_FAIL_DEST_PS = 0x88, |
| TX_STATUS_FAIL_ABORTED = 0x89, |
| TX_STATUS_FAIL_BT_RETRY = 0x8a, |
| TX_STATUS_FAIL_STA_INVALID = 0x8b, |
| TX_STATUS_FAIL_FRAG_DROPPED = 0x8c, |
| TX_STATUS_FAIL_TID_DISABLE = 0x8d, |
| TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e, |
| TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f, |
| TX_STATUS_FAIL_TX_LOCKED = 0x90, |
| TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91, |
| }; |
| |
| #define TX_PACKET_MODE_REGULAR 0x0000 |
| #define TX_PACKET_MODE_BURST_SEQ 0x0100 |
| #define TX_PACKET_MODE_BURST_FIRST 0x0200 |
| |
| enum { |
| TX_POWER_PA_NOT_ACTIVE = 0x0, |
| }; |
| |
| enum { |
| TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */ |
| TX_STATUS_DELAY_MSK = 0x00000040, |
| TX_STATUS_ABORT_MSK = 0x00000080, |
| TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */ |
| TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */ |
| TX_RESERVED = 0x00780000, /* bits 19:22 */ |
| TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */ |
| TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */ |
| }; |
| |
| /* ******************************* |
| * TX aggregation status |
| ******************************* */ |
| |
| enum { |
| AGG_TX_STATE_TRANSMITTED = 0x00, |
| AGG_TX_STATE_UNDERRUN_MSK = 0x01, |
| AGG_TX_STATE_BT_PRIO_MSK = 0x02, |
| AGG_TX_STATE_FEW_BYTES_MSK = 0x04, |
| AGG_TX_STATE_ABORT_MSK = 0x08, |
| AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10, |
| AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20, |
| AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40, |
| AGG_TX_STATE_SCD_QUERY_MSK = 0x80, |
| AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100, |
| AGG_TX_STATE_RESPONSE_MSK = 0x1ff, |
| AGG_TX_STATE_DUMP_TX_MSK = 0x200, |
| AGG_TX_STATE_DELAY_TX_MSK = 0x400 |
| }; |
| |
| #define AGG_TX_STATE_LAST_SENT_MSK \ |
| (AGG_TX_STATE_LAST_SENT_TTL_MSK | \ |
| AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \ |
| AGG_TX_STATE_LAST_SENT_BT_KILL_MSK) |
| |
| /* # tx attempts for first frame in aggregation */ |
| #define AGG_TX_STATE_TRY_CNT_POS 12 |
| #define AGG_TX_STATE_TRY_CNT_MSK 0xf000 |
| |
| /* Command ID and sequence number of Tx command for this frame */ |
| #define AGG_TX_STATE_SEQ_NUM_POS 16 |
| #define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000 |
| |
| /* |
| * REPLY_TX = 0x1c (response) |
| * |
| * This response may be in one of two slightly different formats, indicated |
| * by the frame_count field: |
| * |
| * 1) No aggregation (frame_count == 1). This reports Tx results for |
| * a single frame. Multiple attempts, at various bit rates, may have |
| * been made for this frame. |
| * |
| * 2) Aggregation (frame_count > 1). This reports Tx results for |
| * 2 or more frames that used block-acknowledge. All frames were |
| * transmitted at same rate. Rate scaling may have been used if first |
| * frame in this new agg block failed in previous agg block(s). |
| * |
| * Note that, for aggregation, ACK (block-ack) status is not delivered here; |
| * block-ack has not been received by the time the 4965 records this status. |
| * This status relates to reasons the tx might have been blocked or aborted |
| * within the sending station (this 4965), rather than whether it was |
| * received successfully by the destination station. |
| */ |
| struct iwl4965_tx_resp { |
| u8 frame_count; /* 1 no aggregation, >1 aggregation */ |
| u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */ |
| u8 failure_rts; /* # failures due to unsuccessful RTS */ |
| u8 failure_frame; /* # failures due to no ACK (unused for agg) */ |
| |
| /* For non-agg: Rate at which frame was successful. |
| * For agg: Rate at which all frames were transmitted. */ |
| __le32 rate_n_flags; /* RATE_MCS_* */ |
| |
| /* For non-agg: RTS + CTS + frame tx attempts time + ACK. |
| * For agg: RTS + CTS + aggregation tx time + block-ack time. */ |
| __le16 wireless_media_time; /* uSecs */ |
| |
| __le16 reserved; |
| __le32 pa_power1; /* RF power amplifier measurement (not used) */ |
| __le32 pa_power2; |
| |
| /* |
| * For non-agg: frame status TX_STATUS_* |
| * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status |
| * fields follow this one, up to frame_count. |
| * Bit fields: |
| * 11- 0: AGG_TX_STATE_* status code |
| * 15-12: Retry count for 1st frame in aggregation (retries |
| * occur if tx failed for this frame when it was a |
| * member of a previous aggregation block). If rate |
| * scaling is used, retry count indicates the rate |
| * table entry used for all frames in the new agg. |
| * 31-16: Sequence # for this frame's Tx cmd (not SSN!) |
| */ |
| __le32 status; /* TX status (for aggregation status of 1st frame) */ |
| } __attribute__ ((packed)); |
| |
| struct agg_tx_status { |
| __le16 status; |
| __le16 sequence; |
| } __attribute__ ((packed)); |
| |
| struct iwl4965_tx_resp_agg { |
| u8 frame_count; /* 1 no aggregation, >1 aggregation */ |
| u8 reserved1; |
| u8 failure_rts; |
| u8 failure_frame; |
| __le32 rate_n_flags; |
| __le16 wireless_media_time; |
| __le16 reserved3; |
| __le32 pa_power1; |
| __le32 pa_power2; |
| struct agg_tx_status status; /* TX status (for aggregation status */ |
| /* of 1st frame) */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command) |
| * |
| * Reports Block-Acknowledge from recipient station |
| */ |
| struct iwl4965_compressed_ba_resp { |
| __le32 sta_addr_lo32; |
| __le16 sta_addr_hi16; |
| __le16 reserved; |
| |
| /* Index of recipient (BA-sending) station in uCode's station table */ |
| u8 sta_id; |
| u8 tid; |
| __le16 seq_ctl; |
| __le64 bitmap; |
| __le16 scd_flow; |
| __le16 scd_ssn; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response) |
| * |
| * See details under "TXPOWER" in iwl-4965-hw.h. |
| */ |
| struct iwl4965_txpowertable_cmd { |
| u8 band; /* 0: 5 GHz, 1: 2.4 GHz */ |
| u8 reserved; |
| __le16 channel; |
| struct iwl4965_tx_power_db tx_power; |
| } __attribute__ ((packed)); |
| |
| /*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */ |
| #define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0) |
| |
| /* # of EDCA prioritized tx fifos */ |
| #define LINK_QUAL_AC_NUM AC_NUM |
| |
| /* # entries in rate scale table to support Tx retries */ |
| #define LINK_QUAL_MAX_RETRY_NUM 16 |
| |
| /* Tx antenna selection values */ |
| #define LINK_QUAL_ANT_A_MSK (1 << 0) |
| #define LINK_QUAL_ANT_B_MSK (1 << 1) |
| #define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK) |
| |
| |
| /** |
| * struct iwl_link_qual_general_params |
| * |
| * Used in REPLY_TX_LINK_QUALITY_CMD |
| */ |
| struct iwl_link_qual_general_params { |
| u8 flags; |
| |
| /* No entries at or above this (driver chosen) index contain MIMO */ |
| u8 mimo_delimiter; |
| |
| /* Best single antenna to use for single stream (legacy, SISO). */ |
| u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */ |
| |
| /* Best antennas to use for MIMO (unused for 4965, assumes both). */ |
| u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */ |
| |
| /* |
| * If driver needs to use different initial rates for different |
| * EDCA QOS access categories (as implemented by tx fifos 0-3), |
| * this table will set that up, by indicating the indexes in the |
| * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start. |
| * Otherwise, driver should set all entries to 0. |
| * |
| * Entry usage: |
| * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice |
| * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3. |
| */ |
| u8 start_rate_index[LINK_QUAL_AC_NUM]; |
| } __attribute__ ((packed)); |
| |
| /** |
| * struct iwl_link_qual_agg_params |
| * |
| * Used in REPLY_TX_LINK_QUALITY_CMD |
| */ |
| struct iwl_link_qual_agg_params { |
| |
| /* Maximum number of uSec in aggregation. |
| * Driver should set this to 4000 (4 milliseconds). */ |
| __le16 agg_time_limit; |
| |
| /* |
| * Number of Tx retries allowed for a frame, before that frame will |
| * no longer be considered for the start of an aggregation sequence |
| * (scheduler will then try to tx it as single frame). |
| * Driver should set this to 3. |
| */ |
| u8 agg_dis_start_th; |
| |
| /* |
| * Maximum number of frames in aggregation. |
| * 0 = no limit (default). 1 = no aggregation. |
| * Other values = max # frames in aggregation. |
| */ |
| u8 agg_frame_cnt_limit; |
| |
| __le32 reserved; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response) |
| * |
| * For 4965 only; 3945 uses REPLY_RATE_SCALE. |
| * |
| * Each station in the 4965's internal station table has its own table of 16 |
| * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when |
| * an ACK is not received. This command replaces the entire table for |
| * one station. |
| * |
| * NOTE: Station must already be in 4965's station table. Use REPLY_ADD_STA. |
| * |
| * The rate scaling procedures described below work well. Of course, other |
| * procedures are possible, and may work better for particular environments. |
| * |
| * |
| * FILLING THE RATE TABLE |
| * |
| * Given a particular initial rate and mode, as determined by the rate |
| * scaling algorithm described below, the Linux driver uses the following |
| * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the |
| * Link Quality command: |
| * |
| * |
| * 1) If using High-throughput (HT) (SISO or MIMO) initial rate: |
| * a) Use this same initial rate for first 3 entries. |
| * b) Find next lower available rate using same mode (SISO or MIMO), |
| * use for next 3 entries. If no lower rate available, switch to |
| * legacy mode (no FAT channel, no MIMO, no short guard interval). |
| * c) If using MIMO, set command's mimo_delimiter to number of entries |
| * using MIMO (3 or 6). |
| * d) After trying 2 HT rates, switch to legacy mode (no FAT channel, |
| * no MIMO, no short guard interval), at the next lower bit rate |
| * (e.g. if second HT bit rate was 54, try 48 legacy), and follow |
| * legacy procedure for remaining table entries. |
| * |
| * 2) If using legacy initial rate: |
| * a) Use the initial rate for only one entry. |
| * b) For each following entry, reduce the rate to next lower available |
| * rate, until reaching the lowest available rate. |
| * c) When reducing rate, also switch antenna selection. |
| * d) Once lowest available rate is reached, repeat this rate until |
| * rate table is filled (16 entries), switching antenna each entry. |
| * |
| * |
| * ACCUMULATING HISTORY |
| * |
| * The rate scaling algorithm for 4965, as implemented in Linux driver, uses |
| * two sets of frame Tx success history: One for the current/active modulation |
| * mode, and one for a speculative/search mode that is being attempted. If the |
| * speculative mode turns out to be more effective (i.e. actual transfer |
| * rate is better), then the driver continues to use the speculative mode |
| * as the new current active mode. |
| * |
| * Each history set contains, separately for each possible rate, data for a |
| * sliding window of the 62 most recent tx attempts at that rate. The data |
| * includes a shifting bitmap of success(1)/failure(0), and sums of successful |
| * and attempted frames, from which the driver can additionally calculate a |
| * success ratio (success / attempted) and number of failures |
| * (attempted - success), and control the size of the window (attempted). |
| * The driver uses the bit map to remove successes from the success sum, as |
| * the oldest tx attempts fall out of the window. |
| * |
| * When the 4965 makes multiple tx attempts for a given frame, each attempt |
| * might be at a different rate, and have different modulation characteristics |
| * (e.g. antenna, fat channel, short guard interval), as set up in the rate |
| * scaling table in the Link Quality command. The driver must determine |
| * which rate table entry was used for each tx attempt, to determine which |
| * rate-specific history to update, and record only those attempts that |
| * match the modulation characteristics of the history set. |
| * |
| * When using block-ack (aggregation), all frames are transmitted at the same |
| * rate, since there is no per-attempt acknowledgement from the destination |
| * station. The Tx response struct iwl_tx_resp indicates the Tx rate in |
| * rate_n_flags field. After receiving a block-ack, the driver can update |
| * history for the entire block all at once. |
| * |
| * |
| * FINDING BEST STARTING RATE: |
| * |
| * When working with a selected initial modulation mode (see below), the |
| * driver attempts to find a best initial rate. The initial rate is the |
| * first entry in the Link Quality command's rate table. |
| * |
| * 1) Calculate actual throughput (success ratio * expected throughput, see |
| * table below) for current initial rate. Do this only if enough frames |
| * have been attempted to make the value meaningful: at least 6 failed |
| * tx attempts, or at least 8 successes. If not enough, don't try rate |
| * scaling yet. |
| * |
| * 2) Find available rates adjacent to current initial rate. Available means: |
| * a) supported by hardware && |
| * b) supported by association && |
| * c) within any constraints selected by user |
| * |
| * 3) Gather measured throughputs for adjacent rates. These might not have |
| * enough history to calculate a throughput. That's okay, we might try |
| * using one of them anyway! |
| * |
| * 4) Try decreasing rate if, for current rate: |
| * a) success ratio is < 15% || |
| * b) lower adjacent rate has better measured throughput || |
| * c) higher adjacent rate has worse throughput, and lower is unmeasured |
| * |
| * As a sanity check, if decrease was determined above, leave rate |
| * unchanged if: |
| * a) lower rate unavailable |
| * b) success ratio at current rate > 85% (very good) |
| * c) current measured throughput is better than expected throughput |
| * of lower rate (under perfect 100% tx conditions, see table below) |
| * |
| * 5) Try increasing rate if, for current rate: |
| * a) success ratio is < 15% || |
| * b) both adjacent rates' throughputs are unmeasured (try it!) || |
| * b) higher adjacent rate has better measured throughput || |
| * c) lower adjacent rate has worse throughput, and higher is unmeasured |
| * |
| * As a sanity check, if increase was determined above, leave rate |
| * unchanged if: |
| * a) success ratio at current rate < 70%. This is not particularly |
| * good performance; higher rate is sure to have poorer success. |
| * |
| * 6) Re-evaluate the rate after each tx frame. If working with block- |
| * acknowledge, history and statistics may be calculated for the entire |
| * block (including prior history that fits within the history windows), |
| * before re-evaluation. |
| * |
| * FINDING BEST STARTING MODULATION MODE: |
| * |
| * After working with a modulation mode for a "while" (and doing rate scaling), |
| * the driver searches for a new initial mode in an attempt to improve |
| * throughput. The "while" is measured by numbers of attempted frames: |
| * |
| * For legacy mode, search for new mode after: |
| * 480 successful frames, or 160 failed frames |
| * For high-throughput modes (SISO or MIMO), search for new mode after: |
| * 4500 successful frames, or 400 failed frames |
| * |
| * Mode switch possibilities are (3 for each mode): |
| * |
| * For legacy: |
| * Change antenna, try SISO (if HT association), try MIMO (if HT association) |
| * For SISO: |
| * Change antenna, try MIMO, try shortened guard interval (SGI) |
| * For MIMO: |
| * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI) |
| * |
| * When trying a new mode, use the same bit rate as the old/current mode when |
| * trying antenna switches and shortened guard interval. When switching to |
| * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate |
| * for which the expected throughput (under perfect conditions) is about the |
| * same or slightly better than the actual measured throughput delivered by |
| * the old/current mode. |
| * |
| * Actual throughput can be estimated by multiplying the expected throughput |
| * by the success ratio (successful / attempted tx frames). Frame size is |
| * not considered in this calculation; it assumes that frame size will average |
| * out to be fairly consistent over several samples. The following are |
| * metric values for expected throughput assuming 100% success ratio. |
| * Only G band has support for CCK rates: |
| * |
| * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60 |
| * |
| * G: 7 13 35 58 40 57 72 98 121 154 177 186 186 |
| * A: 0 0 0 0 40 57 72 98 121 154 177 186 186 |
| * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202 |
| * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211 |
| * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251 |
| * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257 |
| * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257 |
| * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264 |
| * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289 |
| * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293 |
| * |
| * After the new mode has been tried for a short while (minimum of 6 failed |
| * frames or 8 successful frames), compare success ratio and actual throughput |
| * estimate of the new mode with the old. If either is better with the new |
| * mode, continue to use the new mode. |
| * |
| * Continue comparing modes until all 3 possibilities have been tried. |
| * If moving from legacy to HT, try all 3 possibilities from the new HT |
| * mode. After trying all 3, a best mode is found. Continue to use this mode |
| * for the longer "while" described above (e.g. 480 successful frames for |
| * legacy), and then repeat the search process. |
| * |
| */ |
| struct iwl_link_quality_cmd { |
| |
| /* Index of destination/recipient station in uCode's station table */ |
| u8 sta_id; |
| u8 reserved1; |
| __le16 control; /* not used */ |
| struct iwl_link_qual_general_params general_params; |
| struct iwl_link_qual_agg_params agg_params; |
| |
| /* |
| * Rate info; when using rate-scaling, Tx command's initial_rate_index |
| * specifies 1st Tx rate attempted, via index into this table. |
| * 4965 works its way through table when retrying Tx. |
| */ |
| struct { |
| __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */ |
| } rs_table[LINK_QUAL_MAX_RETRY_NUM]; |
| __le32 reserved2; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_BT_CONFIG = 0x9b (command, has simple generic response) |
| * |
| * 3945 and 4965 support hardware handshake with Bluetooth device on |
| * same platform. Bluetooth device alerts wireless device when it will Tx; |
| * wireless device can delay or kill its own Tx to accomodate. |
| */ |
| struct iwl4965_bt_cmd { |
| u8 flags; |
| u8 lead_time; |
| u8 max_kill; |
| u8 reserved; |
| __le32 kill_ack_mask; |
| __le32 kill_cts_mask; |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (6) |
| * Spectrum Management (802.11h) Commands, Responses, Notifications: |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Spectrum Management |
| */ |
| #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \ |
| RXON_FILTER_CTL2HOST_MSK | \ |
| RXON_FILTER_ACCEPT_GRP_MSK | \ |
| RXON_FILTER_DIS_DECRYPT_MSK | \ |
| RXON_FILTER_DIS_GRP_DECRYPT_MSK | \ |
| RXON_FILTER_ASSOC_MSK | \ |
| RXON_FILTER_BCON_AWARE_MSK) |
| |
| struct iwl4965_measure_channel { |
| __le32 duration; /* measurement duration in extended beacon |
| * format */ |
| u8 channel; /* channel to measure */ |
| u8 type; /* see enum iwl4965_measure_type */ |
| __le16 reserved; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command) |
| */ |
| struct iwl4965_spectrum_cmd { |
| __le16 len; /* number of bytes starting from token */ |
| u8 token; /* token id */ |
| u8 id; /* measurement id -- 0 or 1 */ |
| u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */ |
| u8 periodic; /* 1 = periodic */ |
| __le16 path_loss_timeout; |
| __le32 start_time; /* start time in extended beacon format */ |
| __le32 reserved2; |
| __le32 flags; /* rxon flags */ |
| __le32 filter_flags; /* rxon filter flags */ |
| __le16 channel_count; /* minimum 1, maximum 10 */ |
| __le16 reserved3; |
| struct iwl4965_measure_channel channels[10]; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response) |
| */ |
| struct iwl4965_spectrum_resp { |
| u8 token; |
| u8 id; /* id of the prior command replaced, or 0xff */ |
| __le16 status; /* 0 - command will be handled |
| * 1 - cannot handle (conflicts with another |
| * measurement) */ |
| } __attribute__ ((packed)); |
| |
| enum iwl4965_measurement_state { |
| IWL_MEASUREMENT_START = 0, |
| IWL_MEASUREMENT_STOP = 1, |
| }; |
| |
| enum iwl4965_measurement_status { |
| IWL_MEASUREMENT_OK = 0, |
| IWL_MEASUREMENT_CONCURRENT = 1, |
| IWL_MEASUREMENT_CSA_CONFLICT = 2, |
| IWL_MEASUREMENT_TGH_CONFLICT = 3, |
| /* 4-5 reserved */ |
| IWL_MEASUREMENT_STOPPED = 6, |
| IWL_MEASUREMENT_TIMEOUT = 7, |
| IWL_MEASUREMENT_PERIODIC_FAILED = 8, |
| }; |
| |
| #define NUM_ELEMENTS_IN_HISTOGRAM 8 |
| |
| struct iwl4965_measurement_histogram { |
| __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */ |
| __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */ |
| } __attribute__ ((packed)); |
| |
| /* clear channel availability counters */ |
| struct iwl4965_measurement_cca_counters { |
| __le32 ofdm; |
| __le32 cck; |
| } __attribute__ ((packed)); |
| |
| enum iwl4965_measure_type { |
| IWL_MEASURE_BASIC = (1 << 0), |
| IWL_MEASURE_CHANNEL_LOAD = (1 << 1), |
| IWL_MEASURE_HISTOGRAM_RPI = (1 << 2), |
| IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3), |
| IWL_MEASURE_FRAME = (1 << 4), |
| /* bits 5:6 are reserved */ |
| IWL_MEASURE_IDLE = (1 << 7), |
| }; |
| |
| /* |
| * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command) |
| */ |
| struct iwl4965_spectrum_notification { |
| u8 id; /* measurement id -- 0 or 1 */ |
| u8 token; |
| u8 channel_index; /* index in measurement channel list */ |
| u8 state; /* 0 - start, 1 - stop */ |
| __le32 start_time; /* lower 32-bits of TSF */ |
| u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */ |
| u8 channel; |
| u8 type; /* see enum iwl4965_measurement_type */ |
| u8 reserved1; |
| /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only |
| * valid if applicable for measurement type requested. */ |
| __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */ |
| __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */ |
| __le32 cca_time; /* channel load time in usecs */ |
| u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 - |
| * unidentified */ |
| u8 reserved2[3]; |
| struct iwl4965_measurement_histogram histogram; |
| __le32 stop_time; /* lower 32-bits of TSF */ |
| __le32 status; /* see iwl4965_measurement_status */ |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (7) |
| * Power Management Commands, Responses, Notifications: |
| * |
| *****************************************************************************/ |
| |
| /** |
| * struct iwl4965_powertable_cmd - Power Table Command |
| * @flags: See below: |
| * |
| * POWER_TABLE_CMD = 0x77 (command, has simple generic response) |
| * |
| * PM allow: |
| * bit 0 - '0' Driver not allow power management |
| * '1' Driver allow PM (use rest of parameters) |
| * uCode send sleep notifications: |
| * bit 1 - '0' Don't send sleep notification |
| * '1' send sleep notification (SEND_PM_NOTIFICATION) |
| * Sleep over DTIM |
| * bit 2 - '0' PM have to walk up every DTIM |
| * '1' PM could sleep over DTIM till listen Interval. |
| * PCI power managed |
| * bit 3 - '0' (PCI_LINK_CTRL & 0x1) |
| * '1' !(PCI_LINK_CTRL & 0x1) |
| * Force sleep Modes |
| * bit 31/30- '00' use both mac/xtal sleeps |
| * '01' force Mac sleep |
| * '10' force xtal sleep |
| * '11' Illegal set |
| * |
| * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then |
| * ucode assume sleep over DTIM is allowed and we don't need to wakeup |
| * for every DTIM. |
| */ |
| #define IWL_POWER_VEC_SIZE 5 |
| |
| #define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1 << 0) |
| #define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1 << 2) |
| #define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1 << 3) |
| #define IWL_POWER_FAST_PD __constant_cpu_to_le16(1 << 4) |
| |
| struct iwl4965_powertable_cmd { |
| __le16 flags; |
| u8 keep_alive_seconds; |
| u8 debug_flags; |
| __le32 rx_data_timeout; |
| __le32 tx_data_timeout; |
| __le32 sleep_interval[IWL_POWER_VEC_SIZE]; |
| __le32 keep_alive_beacons; |
| } __attribute__ ((packed)); |
| |
| /* |
| * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command) |
| * 3945 and 4965 identical. |
| */ |
| struct iwl4965_sleep_notification { |
| u8 pm_sleep_mode; |
| u8 pm_wakeup_src; |
| __le16 reserved; |
| __le32 sleep_time; |
| __le32 tsf_low; |
| __le32 bcon_timer; |
| } __attribute__ ((packed)); |
| |
| /* Sleep states. 3945 and 4965 identical. */ |
| enum { |
| IWL_PM_NO_SLEEP = 0, |
| IWL_PM_SLP_MAC = 1, |
| IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2, |
| IWL_PM_SLP_FULL_MAC_CARD_STATE = 3, |
| IWL_PM_SLP_PHY = 4, |
| IWL_PM_SLP_REPENT = 5, |
| IWL_PM_WAKEUP_BY_TIMER = 6, |
| IWL_PM_WAKEUP_BY_DRIVER = 7, |
| IWL_PM_WAKEUP_BY_RFKILL = 8, |
| /* 3 reserved */ |
| IWL_PM_NUM_OF_MODES = 12, |
| }; |
| |
| /* |
| * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response) |
| */ |
| #define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */ |
| #define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */ |
| #define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */ |
| struct iwl4965_card_state_cmd { |
| __le32 status; /* CARD_STATE_CMD_* request new power state */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command) |
| */ |
| struct iwl4965_card_state_notif { |
| __le32 flags; |
| } __attribute__ ((packed)); |
| |
| #define HW_CARD_DISABLED 0x01 |
| #define SW_CARD_DISABLED 0x02 |
| #define RF_CARD_DISABLED 0x04 |
| #define RXON_CARD_DISABLED 0x10 |
| |
| struct iwl4965_ct_kill_config { |
| __le32 reserved; |
| __le32 critical_temperature_M; |
| __le32 critical_temperature_R; |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (8) |
| * Scan Commands, Responses, Notifications: |
| * |
| *****************************************************************************/ |
| |
| /** |
| * struct iwl4965_scan_channel - entry in REPLY_SCAN_CMD channel table |
| * |
| * One for each channel in the scan list. |
| * Each channel can independently select: |
| * 1) SSID for directed active scans |
| * 2) Txpower setting (for rate specified within Tx command) |
| * 3) How long to stay on-channel (behavior may be modified by quiet_time, |
| * quiet_plcp_th, good_CRC_th) |
| * |
| * To avoid uCode errors, make sure the following are true (see comments |
| * under struct iwl4965_scan_cmd about max_out_time and quiet_time): |
| * 1) If using passive_dwell (i.e. passive_dwell != 0): |
| * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0) |
| * 2) quiet_time <= active_dwell |
| * 3) If restricting off-channel time (i.e. max_out_time !=0): |
| * passive_dwell < max_out_time |
| * active_dwell < max_out_time |
| */ |
| struct iwl4965_scan_channel { |
| /* |
| * type is defined as: |
| * 0:0 1 = active, 0 = passive |
| * 1:4 SSID direct bit map; if a bit is set, then corresponding |
| * SSID IE is transmitted in probe request. |
| * 5:7 reserved |
| */ |
| u8 type; |
| u8 channel; /* band is selected by iwl4965_scan_cmd "flags" field */ |
| struct iwl4965_tx_power tpc; |
| __le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */ |
| __le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */ |
| } __attribute__ ((packed)); |
| |
| /** |
| * struct iwl4965_ssid_ie - directed scan network information element |
| * |
| * Up to 4 of these may appear in REPLY_SCAN_CMD, selected by "type" field |
| * in struct iwl4965_scan_channel; each channel may select different ssids from |
| * among the 4 entries. SSID IEs get transmitted in reverse order of entry. |
| */ |
| struct iwl4965_ssid_ie { |
| u8 id; |
| u8 len; |
| u8 ssid[32]; |
| } __attribute__ ((packed)); |
| |
| #define PROBE_OPTION_MAX 0x4 |
| #define TX_CMD_LIFE_TIME_INFINITE __constant_cpu_to_le32(0xFFFFFFFF) |
| #define IWL_GOOD_CRC_TH __constant_cpu_to_le16(1) |
| #define IWL_MAX_SCAN_SIZE 1024 |
| |
| /* |
| * REPLY_SCAN_CMD = 0x80 (command) |
| * |
| * The hardware scan command is very powerful; the driver can set it up to |
| * maintain (relatively) normal network traffic while doing a scan in the |
| * background. The max_out_time and suspend_time control the ratio of how |
| * long the device stays on an associated network channel ("service channel") |
| * vs. how long it's away from the service channel, i.e. tuned to other channels |
| * for scanning. |
| * |
| * max_out_time is the max time off-channel (in usec), and suspend_time |
| * is how long (in "extended beacon" format) that the scan is "suspended" |
| * after returning to the service channel. That is, suspend_time is the |
| * time that we stay on the service channel, doing normal work, between |
| * scan segments. The driver may set these parameters differently to support |
| * scanning when associated vs. not associated, and light vs. heavy traffic |
| * loads when associated. |
| * |
| * After receiving this command, the device's scan engine does the following; |
| * |
| * 1) Sends SCAN_START notification to driver |
| * 2) Checks to see if it has time to do scan for one channel |
| * 3) Sends NULL packet, with power-save (PS) bit set to 1, |
| * to tell AP that we're going off-channel |
| * 4) Tunes to first channel in scan list, does active or passive scan |
| * 5) Sends SCAN_RESULT notification to driver |
| * 6) Checks to see if it has time to do scan on *next* channel in list |
| * 7) Repeats 4-6 until it no longer has time to scan the next channel |
| * before max_out_time expires |
| * 8) Returns to service channel |
| * 9) Sends NULL packet with PS=0 to tell AP that we're back |
| * 10) Stays on service channel until suspend_time expires |
| * 11) Repeats entire process 2-10 until list is complete |
| * 12) Sends SCAN_COMPLETE notification |
| * |
| * For fast, efficient scans, the scan command also has support for staying on |
| * a channel for just a short time, if doing active scanning and getting no |
| * responses to the transmitted probe request. This time is controlled by |
| * quiet_time, and the number of received packets below which a channel is |
| * considered "quiet" is controlled by quiet_plcp_threshold. |
| * |
| * For active scanning on channels that have regulatory restrictions against |
| * blindly transmitting, the scan can listen before transmitting, to make sure |
| * that there is already legitimate activity on the channel. If enough |
| * packets are cleanly received on the channel (controlled by good_CRC_th, |
| * typical value 1), the scan engine starts transmitting probe requests. |
| * |
| * Driver must use separate scan commands for 2.4 vs. 5 GHz bands. |
| * |
| * To avoid uCode errors, see timing restrictions described under |
| * struct iwl4965_scan_channel. |
| */ |
| struct iwl4965_scan_cmd { |
| __le16 len; |
| u8 reserved0; |
| u8 channel_count; /* # channels in channel list */ |
| __le16 quiet_time; /* dwell only this # millisecs on quiet channel |
| * (only for active scan) */ |
| __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */ |
| __le16 good_CRC_th; /* passive -> active promotion threshold */ |
| __le16 rx_chain; /* RXON_RX_CHAIN_* */ |
| __le32 max_out_time; /* max usec to be away from associated (service) |
| * channel */ |
| __le32 suspend_time; /* pause scan this long (in "extended beacon |
| * format") when returning to service chnl: |
| * 3945; 31:24 # beacons, 19:0 additional usec, |
| * 4965; 31:22 # beacons, 21:0 additional usec. |
| */ |
| __le32 flags; /* RXON_FLG_* */ |
| __le32 filter_flags; /* RXON_FILTER_* */ |
| |
| /* For active scans (set to all-0s for passive scans). |
| * Does not include payload. Must specify Tx rate; no rate scaling. */ |
| struct iwl4965_tx_cmd tx_cmd; |
| |
| /* For directed active scans (set to all-0s otherwise) */ |
| struct iwl4965_ssid_ie direct_scan[PROBE_OPTION_MAX]; |
| |
| /* |
| * Probe request frame, followed by channel list. |
| * |
| * Size of probe request frame is specified by byte count in tx_cmd. |
| * Channel list follows immediately after probe request frame. |
| * Number of channels in list is specified by channel_count. |
| * Each channel in list is of type: |
| * |
| * struct iwl4965_scan_channel channels[0]; |
| * |
| * NOTE: Only one band of channels can be scanned per pass. You |
| * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait |
| * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION) |
| * before requesting another scan. |
| */ |
| u8 data[0]; |
| } __attribute__ ((packed)); |
| |
| /* Can abort will notify by complete notification with abort status. */ |
| #define CAN_ABORT_STATUS __constant_cpu_to_le32(0x1) |
| /* complete notification statuses */ |
| #define ABORT_STATUS 0x2 |
| |
| /* |
| * REPLY_SCAN_CMD = 0x80 (response) |
| */ |
| struct iwl4965_scanreq_notification { |
| __le32 status; /* 1: okay, 2: cannot fulfill request */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command) |
| */ |
| struct iwl4965_scanstart_notification { |
| __le32 tsf_low; |
| __le32 tsf_high; |
| __le32 beacon_timer; |
| u8 channel; |
| u8 band; |
| u8 reserved[2]; |
| __le32 status; |
| } __attribute__ ((packed)); |
| |
| #define SCAN_OWNER_STATUS 0x1; |
| #define MEASURE_OWNER_STATUS 0x2; |
| |
| #define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */ |
| /* |
| * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command) |
| */ |
| struct iwl4965_scanresults_notification { |
| u8 channel; |
| u8 band; |
| u8 reserved[2]; |
| __le32 tsf_low; |
| __le32 tsf_high; |
| __le32 statistics[NUMBER_OF_STATISTICS]; |
| } __attribute__ ((packed)); |
| |
| /* |
| * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command) |
| */ |
| struct iwl4965_scancomplete_notification { |
| u8 scanned_channels; |
| u8 status; |
| u8 reserved; |
| u8 last_channel; |
| __le32 tsf_low; |
| __le32 tsf_high; |
| } __attribute__ ((packed)); |
| |
| |
| /****************************************************************************** |
| * (9) |
| * IBSS/AP Commands and Notifications: |
| * |
| *****************************************************************************/ |
| |
| /* |
| * BEACON_NOTIFICATION = 0x90 (notification only, not a command) |
| */ |
| struct iwl4965_beacon_notif { |
| struct iwl4965_tx_resp beacon_notify_hdr; |
| __le32 low_tsf; |
| __le32 high_tsf; |
| __le32 ibss_mgr_status; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_TX_BEACON = 0x91 (command, has simple generic response) |
| */ |
| struct iwl4965_tx_beacon_cmd { |
| struct iwl4965_tx_cmd tx; |
| __le16 tim_idx; |
| u8 tim_size; |
| u8 reserved1; |
| struct ieee80211_hdr frame[0]; /* beacon frame */ |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (10) |
| * Statistics Commands and Notifications: |
| * |
| *****************************************************************************/ |
| |
| #define IWL_TEMP_CONVERT 260 |
| |
| #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 |
| #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 |
| #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 |
| |
| /* Used for passing to driver number of successes and failures per rate */ |
| struct rate_histogram { |
| union { |
| __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; |
| __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; |
| __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; |
| } success; |
| union { |
| __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; |
| __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; |
| __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; |
| } failed; |
| } __attribute__ ((packed)); |
| |
| /* statistics command response */ |
| |
| struct statistics_rx_phy { |
| __le32 ina_cnt; |
| __le32 fina_cnt; |
| __le32 plcp_err; |
| __le32 crc32_err; |
| __le32 overrun_err; |
| __le32 early_overrun_err; |
| __le32 crc32_good; |
| __le32 false_alarm_cnt; |
| __le32 fina_sync_err_cnt; |
| __le32 sfd_timeout; |
| __le32 fina_timeout; |
| __le32 unresponded_rts; |
| __le32 rxe_frame_limit_overrun; |
| __le32 sent_ack_cnt; |
| __le32 sent_cts_cnt; |
| __le32 sent_ba_rsp_cnt; |
| __le32 dsp_self_kill; |
| __le32 mh_format_err; |
| __le32 re_acq_main_rssi_sum; |
| __le32 reserved3; |
| } __attribute__ ((packed)); |
| |
| struct statistics_rx_ht_phy { |
| __le32 plcp_err; |
| __le32 overrun_err; |
| __le32 early_overrun_err; |
| __le32 crc32_good; |
| __le32 crc32_err; |
| __le32 mh_format_err; |
| __le32 agg_crc32_good; |
| __le32 agg_mpdu_cnt; |
| __le32 agg_cnt; |
| __le32 reserved2; |
| } __attribute__ ((packed)); |
| |
| struct statistics_rx_non_phy { |
| __le32 bogus_cts; /* CTS received when not expecting CTS */ |
| __le32 bogus_ack; /* ACK received when not expecting ACK */ |
| __le32 non_bssid_frames; /* number of frames with BSSID that |
| * doesn't belong to the STA BSSID */ |
| __le32 filtered_frames; /* count frames that were dumped in the |
| * filtering process */ |
| __le32 non_channel_beacons; /* beacons with our bss id but not on |
| * our serving channel */ |
| __le32 channel_beacons; /* beacons with our bss id and in our |
| * serving channel */ |
| __le32 num_missed_bcon; /* number of missed beacons */ |
| __le32 adc_rx_saturation_time; /* count in 0.8us units the time the |
| * ADC was in saturation */ |
| __le32 ina_detection_search_time;/* total time (in 0.8us) searched |
| * for INA */ |
| __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */ |
| __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */ |
| __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */ |
| __le32 interference_data_flag; /* flag for interference data |
| * availability. 1 when data is |
| * available. */ |
| __le32 channel_load; /* counts RX Enable time in uSec */ |
| __le32 dsp_false_alarms; /* DSP false alarm (both OFDM |
| * and CCK) counter */ |
| __le32 beacon_rssi_a; |
| __le32 beacon_rssi_b; |
| __le32 beacon_rssi_c; |
| __le32 beacon_energy_a; |
| __le32 beacon_energy_b; |
| __le32 beacon_energy_c; |
| } __attribute__ ((packed)); |
| |
| struct statistics_rx { |
| struct statistics_rx_phy ofdm; |
| struct statistics_rx_phy cck; |
| struct statistics_rx_non_phy general; |
| struct statistics_rx_ht_phy ofdm_ht; |
| } __attribute__ ((packed)); |
| |
| struct statistics_tx_non_phy_agg { |
| __le32 ba_timeout; |
| __le32 ba_reschedule_frames; |
| __le32 scd_query_agg_frame_cnt; |
| __le32 scd_query_no_agg; |
| __le32 scd_query_agg; |
| __le32 scd_query_mismatch; |
| __le32 frame_not_ready; |
| __le32 underrun; |
| __le32 bt_prio_kill; |
| __le32 rx_ba_rsp_cnt; |
| __le32 reserved2; |
| __le32 reserved3; |
| } __attribute__ ((packed)); |
| |
| struct statistics_tx { |
| __le32 preamble_cnt; |
| __le32 rx_detected_cnt; |
| __le32 bt_prio_defer_cnt; |
| __le32 bt_prio_kill_cnt; |
| __le32 few_bytes_cnt; |
| __le32 cts_timeout; |
| __le32 ack_timeout; |
| __le32 expected_ack_cnt; |
| __le32 actual_ack_cnt; |
| __le32 dump_msdu_cnt; |
| __le32 burst_abort_next_frame_mismatch_cnt; |
| __le32 burst_abort_missing_next_frame_cnt; |
| __le32 cts_timeout_collision; |
| __le32 ack_or_ba_timeout_collision; |
| struct statistics_tx_non_phy_agg agg; |
| } __attribute__ ((packed)); |
| |
| struct statistics_dbg { |
| __le32 burst_check; |
| __le32 burst_count; |
| __le32 reserved[4]; |
| } __attribute__ ((packed)); |
| |
| struct statistics_div { |
| __le32 tx_on_a; |
| __le32 tx_on_b; |
| __le32 exec_time; |
| __le32 probe_time; |
| __le32 reserved1; |
| __le32 reserved2; |
| } __attribute__ ((packed)); |
| |
| struct statistics_general { |
| __le32 temperature; |
| __le32 temperature_m; |
| struct statistics_dbg dbg; |
| __le32 sleep_time; |
| __le32 slots_out; |
| __le32 slots_idle; |
| __le32 ttl_timestamp; |
| struct statistics_div div; |
| __le32 rx_enable_counter; |
| __le32 reserved1; |
| __le32 reserved2; |
| __le32 reserved3; |
| } __attribute__ ((packed)); |
| |
| /* |
| * REPLY_STATISTICS_CMD = 0x9c, |
| * 3945 and 4965 identical. |
| * |
| * This command triggers an immediate response containing uCode statistics. |
| * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below. |
| * |
| * If the CLEAR_STATS configuration flag is set, uCode will clear its |
| * internal copy of the statistics (counters) after issuing the response. |
| * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below). |
| * |
| * If the DISABLE_NOTIF configuration flag is set, uCode will not issue |
| * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag |
| * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself. |
| */ |
| #define IWL_STATS_CONF_CLEAR_STATS __constant_cpu_to_le32(0x1) /* see above */ |
| #define IWL_STATS_CONF_DISABLE_NOTIF __constant_cpu_to_le32(0x2)/* see above */ |
| struct iwl4965_statistics_cmd { |
| __le32 configuration_flags; /* IWL_STATS_CONF_* */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command) |
| * |
| * By default, uCode issues this notification after receiving a beacon |
| * while associated. To disable this behavior, set DISABLE_NOTIF flag in the |
| * REPLY_STATISTICS_CMD 0x9c, above. |
| * |
| * Statistics counters continue to increment beacon after beacon, but are |
| * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD |
| * 0x9c with CLEAR_STATS bit set (see above). |
| * |
| * uCode also issues this notification during scans. uCode clears statistics |
| * appropriately so that each notification contains statistics for only the |
| * one channel that has just been scanned. |
| */ |
| #define STATISTICS_REPLY_FLG_BAND_24G_MSK __constant_cpu_to_le32(0x2) |
| #define STATISTICS_REPLY_FLG_FAT_MODE_MSK __constant_cpu_to_le32(0x8) |
| struct iwl4965_notif_statistics { |
| __le32 flag; |
| struct statistics_rx rx; |
| struct statistics_tx tx; |
| struct statistics_general general; |
| } __attribute__ ((packed)); |
| |
| |
| /* |
| * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command) |
| */ |
| /* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row, |
| * then this notification will be sent. */ |
| #define CONSECUTIVE_MISSED_BCONS_TH 20 |
| |
| struct iwl4965_missed_beacon_notif { |
| __le32 consequtive_missed_beacons; |
| __le32 total_missed_becons; |
| __le32 num_expected_beacons; |
| __le32 num_recvd_beacons; |
| } __attribute__ ((packed)); |
| |
| |
| /****************************************************************************** |
| * (11) |
| * Rx Calibration Commands: |
| * |
| * With the uCode used for open source drivers, most Tx calibration (except |
| * for Tx Power) and most Rx calibration is done by uCode during the |
| * "initialize" phase of uCode boot. Driver must calibrate only: |
| * |
| * 1) Tx power (depends on temperature), described elsewhere |
| * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas) |
| * 3) Receiver sensitivity (to optimize signal detection) |
| * |
| *****************************************************************************/ |
| |
| /** |
| * SENSITIVITY_CMD = 0xa8 (command, has simple generic response) |
| * |
| * This command sets up the Rx signal detector for a sensitivity level that |
| * is high enough to lock onto all signals within the associated network, |
| * but low enough to ignore signals that are below a certain threshold, so as |
| * not to have too many "false alarms". False alarms are signals that the |
| * Rx DSP tries to lock onto, but then discards after determining that they |
| * are noise. |
| * |
| * The optimum number of false alarms is between 5 and 50 per 200 TUs |
| * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e. |
| * time listening, not transmitting). Driver must adjust sensitivity so that |
| * the ratio of actual false alarms to actual Rx time falls within this range. |
| * |
| * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each |
| * received beacon. These provide information to the driver to analyze the |
| * sensitivity. Don't analyze statistics that come in from scanning, or any |
| * other non-associated-network source. Pertinent statistics include: |
| * |
| * From "general" statistics (struct statistics_rx_non_phy): |
| * |
| * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level) |
| * Measure of energy of desired signal. Used for establishing a level |
| * below which the device does not detect signals. |
| * |
| * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB) |
| * Measure of background noise in silent period after beacon. |
| * |
| * channel_load |
| * uSecs of actual Rx time during beacon period (varies according to |
| * how much time was spent transmitting). |
| * |
| * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately: |
| * |
| * false_alarm_cnt |
| * Signal locks abandoned early (before phy-level header). |
| * |
| * plcp_err |
| * Signal locks abandoned late (during phy-level header). |
| * |
| * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from |
| * beacon to beacon, i.e. each value is an accumulation of all errors |
| * before and including the latest beacon. Values will wrap around to 0 |
| * after counting up to 2^32 - 1. Driver must differentiate vs. |
| * previous beacon's values to determine # false alarms in the current |
| * beacon period. |
| * |
| * Total number of false alarms = false_alarms + plcp_errs |
| * |
| * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd |
| * (notice that the start points for OFDM are at or close to settings for |
| * maximum sensitivity): |
| * |
| * START / MIN / MAX |
| * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120 |
| * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210 |
| * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140 |
| * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270 |
| * |
| * If actual rate of OFDM false alarms (+ plcp_errors) is too high |
| * (greater than 50 for each 204.8 msecs listening), reduce sensitivity |
| * by *adding* 1 to all 4 of the table entries above, up to the max for |
| * each entry. Conversely, if false alarm rate is too low (less than 5 |
| * for each 204.8 msecs listening), *subtract* 1 from each entry to |
| * increase sensitivity. |
| * |
| * For CCK sensitivity, keep track of the following: |
| * |
| * 1). 20-beacon history of maximum background noise, indicated by |
| * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the |
| * 3 receivers. For any given beacon, the "silence reference" is |
| * the maximum of last 60 samples (20 beacons * 3 receivers). |
| * |
| * 2). 10-beacon history of strongest signal level, as indicated |
| * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers, |
| * i.e. the strength of the signal through the best receiver at the |
| * moment. These measurements are "upside down", with lower values |
| * for stronger signals, so max energy will be *minimum* value. |
| * |
| * Then for any given beacon, the driver must determine the *weakest* |
| * of the strongest signals; this is the minimum level that needs to be |
| * successfully detected, when using the best receiver at the moment. |
| * "Max cck energy" is the maximum (higher value means lower energy!) |
| * of the last 10 minima. Once this is determined, driver must add |
| * a little margin by adding "6" to it. |
| * |
| * 3). Number of consecutive beacon periods with too few false alarms. |
| * Reset this to 0 at the first beacon period that falls within the |
| * "good" range (5 to 50 false alarms per 204.8 milliseconds rx). |
| * |
| * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd |
| * (notice that the start points for CCK are at maximum sensitivity): |
| * |
| * START / MIN / MAX |
| * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200 |
| * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400 |
| * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100 |
| * |
| * If actual rate of CCK false alarms (+ plcp_errors) is too high |
| * (greater than 50 for each 204.8 msecs listening), method for reducing |
| * sensitivity is: |
| * |
| * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, |
| * up to max 400. |
| * |
| * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160, |
| * sensitivity has been reduced a significant amount; bring it up to |
| * a moderate 161. Otherwise, *add* 3, up to max 200. |
| * |
| * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160, |
| * sensitivity has been reduced only a moderate or small amount; |
| * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX, |
| * down to min 0. Otherwise (if gain has been significantly reduced), |
| * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value. |
| * |
| * b) Save a snapshot of the "silence reference". |
| * |
| * If actual rate of CCK false alarms (+ plcp_errors) is too low |
| * (less than 5 for each 204.8 msecs listening), method for increasing |
| * sensitivity is used only if: |
| * |
| * 1a) Previous beacon did not have too many false alarms |
| * 1b) AND difference between previous "silence reference" and current |
| * "silence reference" (prev - current) is 2 or more, |
| * OR 2) 100 or more consecutive beacon periods have had rate of |
| * less than 5 false alarms per 204.8 milliseconds rx time. |
| * |
| * Method for increasing sensitivity: |
| * |
| * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX, |
| * down to min 125. |
| * |
| * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX, |
| * down to min 200. |
| * |
| * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100. |
| * |
| * If actual rate of CCK false alarms (+ plcp_errors) is within good range |
| * (between 5 and 50 for each 204.8 msecs listening): |
| * |
| * 1) Save a snapshot of the silence reference. |
| * |
| * 2) If previous beacon had too many CCK false alarms (+ plcp_errors), |
| * give some extra margin to energy threshold by *subtracting* 8 |
| * from value in HD_MIN_ENERGY_CCK_DET_INDEX. |
| * |
| * For all cases (too few, too many, good range), make sure that the CCK |
| * detection threshold (energy) is below the energy level for robust |
| * detection over the past 10 beacon periods, the "Max cck energy". |
| * Lower values mean higher energy; this means making sure that the value |
| * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy". |
| * |
| * Driver should set the following entries to fixed values: |
| * |
| * HD_MIN_ENERGY_OFDM_DET_INDEX 100 |
| * HD_BARKER_CORR_TH_ADD_MIN_INDEX 190 |
| * HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX 390 |
| * HD_OFDM_ENERGY_TH_IN_INDEX 62 |
| */ |
| |
| /* |
| * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd) |
| */ |
| #define HD_TABLE_SIZE (11) /* number of entries */ |
| #define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */ |
| #define HD_MIN_ENERGY_OFDM_DET_INDEX (1) |
| #define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2) |
| #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3) |
| #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4) |
| #define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5) |
| #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6) |
| #define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7) |
| #define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8) |
| #define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9) |
| #define HD_OFDM_ENERGY_TH_IN_INDEX (10) |
| |
| /* Control field in struct iwl_sensitivity_cmd */ |
| #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE __constant_cpu_to_le16(0) |
| #define SENSITIVITY_CMD_CONTROL_WORK_TABLE __constant_cpu_to_le16(1) |
| |
| /** |
| * struct iwl_sensitivity_cmd |
| * @control: (1) updates working table, (0) updates default table |
| * @table: energy threshold values, use HD_* as index into table |
| * |
| * Always use "1" in "control" to update uCode's working table and DSP. |
| */ |
| struct iwl_sensitivity_cmd { |
| __le16 control; /* always use "1" */ |
| __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */ |
| } __attribute__ ((packed)); |
| |
| |
| /** |
| * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response) |
| * |
| * This command sets the relative gains of 4965's 3 radio receiver chains. |
| * |
| * After the first association, driver should accumulate signal and noise |
| * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20 |
| * beacons from the associated network (don't collect statistics that come |
| * in from scanning, or any other non-network source). |
| * |
| * DISCONNECTED ANTENNA: |
| * |
| * Driver should determine which antennas are actually connected, by comparing |
| * average beacon signal levels for the 3 Rx chains. Accumulate (add) the |
| * following values over 20 beacons, one accumulator for each of the chains |
| * a/b/c, from struct statistics_rx_non_phy: |
| * |
| * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB) |
| * |
| * Find the strongest signal from among a/b/c. Compare the other two to the |
| * strongest. If any signal is more than 15 dB (times 20, unless you |
| * divide the accumulated values by 20) below the strongest, the driver |
| * considers that antenna to be disconnected, and should not try to use that |
| * antenna/chain for Rx or Tx. If both A and B seem to be disconnected, |
| * driver should declare the stronger one as connected, and attempt to use it |
| * (A and B are the only 2 Tx chains!). |
| * |
| * |
| * RX BALANCE: |
| * |
| * Driver should balance the 3 receivers (but just the ones that are connected |
| * to antennas, see above) for gain, by comparing the average signal levels |
| * detected during the silence after each beacon (background noise). |
| * Accumulate (add) the following values over 20 beacons, one accumulator for |
| * each of the chains a/b/c, from struct statistics_rx_non_phy: |
| * |
| * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB) |
| * |
| * Find the weakest background noise level from among a/b/c. This Rx chain |
| * will be the reference, with 0 gain adjustment. Attenuate other channels by |
| * finding noise difference: |
| * |
| * (accum_noise[i] - accum_noise[reference]) / 30 |
| * |
| * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB. |
| * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the |
| * driver should limit the difference results to a range of 0-3 (0-4.5 dB), |
| * and set bit 2 to indicate "reduce gain". The value for the reference |
| * (weakest) chain should be "0". |
| * |
| * diff_gain_[abc] bit fields: |
| * 2: (1) reduce gain, (0) increase gain |
| * 1-0: amount of gain, units of 1.5 dB |
| */ |
| |
| /* "Differential Gain" opcode used in REPLY_PHY_CALIBRATION_CMD. */ |
| #define PHY_CALIBRATE_DIFF_GAIN_CMD (7) |
| |
| struct iwl4965_calibration_cmd { |
| u8 opCode; /* PHY_CALIBRATE_DIFF_GAIN_CMD (7) */ |
| u8 flags; /* not used */ |
| __le16 reserved; |
| s8 diff_gain_a; /* see above */ |
| s8 diff_gain_b; |
| s8 diff_gain_c; |
| u8 reserved1; |
| } __attribute__ ((packed)); |
| |
| /* Phy calibration command for 5000 series */ |
| |
| enum { |
| IWL5000_PHY_CALIBRATE_DC_CMD = 8, |
| IWL5000_PHY_CALIBRATE_LO_CMD = 9, |
| IWL5000_PHY_CALIBRATE_RX_BB_CMD = 10, |
| IWL5000_PHY_CALIBRATE_TX_IQ_CMD = 11, |
| IWL5000_PHY_CALIBRATE_RX_IQ_CMD = 12, |
| IWL5000_PHY_CALIBRATION_NOISE_CMD = 13, |
| IWL5000_PHY_CALIBRATE_AGC_TABLE_CMD = 14, |
| IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD = 15, |
| IWL5000_PHY_CALIBRATE_BASE_BAND_CMD = 16, |
| IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD = 18, |
| IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD = 19, |
| }; |
| |
| struct iwl5000_calibration_chain_noise_reset_cmd { |
| u8 op_code; /* IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */ |
| u8 flags; /* not used */ |
| __le16 reserved; |
| } __attribute__ ((packed)); |
| |
| struct iwl5000_calibration_chain_noise_gain_cmd { |
| u8 op_code; /* IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD */ |
| u8 flags; /* not used */ |
| __le16 reserved; |
| u8 delta_gain_1; |
| u8 delta_gain_2; |
| __le16 reserved1; |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (12) |
| * Miscellaneous Commands: |
| * |
| *****************************************************************************/ |
| |
| /* |
| * LEDs Command & Response |
| * REPLY_LEDS_CMD = 0x48 (command, has simple generic response) |
| * |
| * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field), |
| * this command turns it on or off, or sets up a periodic blinking cycle. |
| */ |
| struct iwl4965_led_cmd { |
| __le32 interval; /* "interval" in uSec */ |
| u8 id; /* 1: Activity, 2: Link, 3: Tech */ |
| u8 off; /* # intervals off while blinking; |
| * "0", with >0 "on" value, turns LED on */ |
| u8 on; /* # intervals on while blinking; |
| * "0", regardless of "off", turns LED off */ |
| u8 reserved; |
| } __attribute__ ((packed)); |
| |
| /****************************************************************************** |
| * (13) |
| * Union of all expected notifications/responses: |
| * |
| *****************************************************************************/ |
| |
| struct iwl_rx_packet { |
| __le32 len; |
| struct iwl_cmd_header hdr; |
| union { |
| struct iwl4965_alive_resp alive_frame; |
| struct iwl4965_rx_frame rx_frame; |
| struct iwl4965_tx_resp tx_resp; |
| struct iwl4965_spectrum_notification spectrum_notif; |
| struct iwl4965_csa_notification csa_notif; |
| struct iwl4965_error_resp err_resp; |
| struct iwl4965_card_state_notif card_state_notif; |
| struct iwl4965_beacon_notif beacon_status; |
| struct iwl4965_add_sta_resp add_sta; |
| struct iwl4965_sleep_notification sleep_notif; |
| struct iwl4965_spectrum_resp spectrum; |
| struct iwl4965_notif_statistics stats; |
| struct iwl4965_compressed_ba_resp compressed_ba; |
| struct iwl4965_missed_beacon_notif missed_beacon; |
| __le32 status; |
| u8 raw[0]; |
| } u; |
| } __attribute__ ((packed)); |
| |
| #define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl4965_rx_frame)) |
| |
| #endif /* __iwl4965_commands_h__ */ |
