OSCL-LXR linux-6.0.1/​drivers/​net/​wireless/​intel/​iwlwifi/​dvm/​commands.h	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
  * Copyright (C) 2005-2014 Intel Corporation
  */
 /*
  * Please use this file (commands.h) only for uCode API definitions.
  * Please use iwl-xxxx-hw.h for hardware-related definitions.
  * Please use dev.h for driver implementation definitions.
  */
 
 #ifndef __iwl_commands_h__
 #define __iwl_commands_h__
 
 #include <linux/ieee80211.h>
 #include <linux/types.h>
 
 
 enum {
     REPLY_ALIVE = 0x1,
     REPLY_ERROR = 0x2,
     REPLY_ECHO = 0x3,       /* test command */
 
     /* 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,
     REPLY_REMOVE_ALL_STA = 0x1a,    /* not used */
     REPLY_TXFIFO_FLUSH = 0x1e,
 
     /* Security */
     REPLY_WEPKEY = 0x20,
 
     /* RX, TX, LEDs */
     REPLY_TX = 0x1c,
     REPLY_LEDS_CMD = 0x48,
     REPLY_TX_LINK_QUALITY_CMD = 0x4e,
 
     /* WiMAX coexistence */
     COEX_PRIORITY_TABLE_CMD = 0x5a,
     COEX_MEDIUM_NOTIFICATION = 0x5b,
     COEX_EVENT_CMD = 0x5c,
 
     /* Calibration */
     TEMPERATURE_NOTIFICATION = 0x62,
     CALIBRATION_CFG_CMD = 0x65,
     CALIBRATION_RES_NOTIFICATION = 0x66,
     CALIBRATION_COMPLETE_NOTIFICATION = 0x67,
 
     /* 802.11h related */
     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 */
     REPLY_TX_POWER_DBM_CMD = 0x95,
     QUIET_NOTIFICATION = 0x96,      /* not used */
     REPLY_TX_PWR_TABLE_CMD = 0x97,
     REPLY_TX_POWER_DBM_CMD_V1 = 0x98,   /* old version of API */
     TX_ANT_CONFIGURATION_CMD = 0x98,
     MEASURE_ABORT_NOTIFICATION = 0x99,  /* not used */
 
     /* Bluetooth device coexistence 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,
 
     /* BT Coex */
     REPLY_BT_COEX_PRIO_TABLE = 0xcc,
     REPLY_BT_COEX_PROT_ENV = 0xcd,
     REPLY_BT_COEX_PROFILE_NOTIF = 0xce,
 
     /* PAN commands */
     REPLY_WIPAN_PARAMS = 0xb2,
     REPLY_WIPAN_RXON = 0xb3,    /* use REPLY_RXON structure */
     REPLY_WIPAN_RXON_TIMING = 0xb4, /* use REPLY_RXON_TIMING structure */
     REPLY_WIPAN_RXON_ASSOC = 0xb6,  /* use REPLY_RXON_ASSOC structure */
     REPLY_WIPAN_QOS_PARAM = 0xb7,   /* use REPLY_QOS_PARAM structure */
     REPLY_WIPAN_WEPKEY = 0xb8,  /* use REPLY_WEPKEY structure */
     REPLY_WIPAN_P2P_CHANNEL_SWITCH = 0xb9,
     REPLY_WIPAN_NOA_NOTIFICATION = 0xbc,
     REPLY_WIPAN_DEACTIVATION_COMPLETE = 0xbd,
 
     REPLY_WOWLAN_PATTERNS = 0xe0,
     REPLY_WOWLAN_WAKEUP_FILTER = 0xe1,
     REPLY_WOWLAN_TSC_RSC_PARAMS = 0xe2,
     REPLY_WOWLAN_TKIP_PARAMS = 0xe3,
     REPLY_WOWLAN_KEK_KCK_MATERIAL = 0xe4,
     REPLY_WOWLAN_GET_STATUS = 0xe5,
     REPLY_D3_CONFIG = 0xd3,
 
     REPLY_MAX = 0xff
 };
 
 /*
  * Minimum number of queues. MAX_NUM is defined in hw specific files.
  * Set the minimum to accommodate
  *  - 4 standard TX queues
  *  - the command queue
  *  - 4 PAN TX queues
  *  - the PAN multicast queue, and
  *  - the AUX (TX during scan dwell) queue.
  */
 #define IWL_MIN_NUM_QUEUES  11
 
 /*
  * Command queue depends on iPAN support.
  */
 #define IWL_DEFAULT_CMD_QUEUE_NUM   4
 #define IWL_IPAN_CMD_QUEUE_NUM      9
 
 #define IWL_TX_FIFO_BK      0   /* shared */
 #define IWL_TX_FIFO_BE      1
 #define IWL_TX_FIFO_VI      2   /* shared */
 #define IWL_TX_FIFO_VO      3
 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
 #define IWL_TX_FIFO_BE_IPAN 4
 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
 #define IWL_TX_FIFO_VO_IPAN 5
 /* re-uses the VO FIFO, uCode will properly flush/schedule */
 #define IWL_TX_FIFO_AUX     5
 #define IWL_TX_FIFO_UNUSED  255
 
 #define IWLAGN_CMD_FIFO_NUM 7
 
 /*
  * This queue number is required for proper operation
  * because the ucode will stop/start the scheduler as
  * required.
  */
 #define IWL_IPAN_MCAST_QUEUE    8
 
 /******************************************************************************
  * (0)
  * Commonly used structures and definitions:
  * Command header, rate_n_flags, txpower
  *
  *****************************************************************************/
 
 /**
  * iwlagn rate_n_flags bit fields
  *
  * rate_n_flags format is used in following iwlagn commands:
  *  REPLY_RX (response only)
  *  REPLY_RX_MPDU (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
  *
  *  4-3:  0)  Single stream (SISO)
  *        1)  Dual stream (MIMO)
  *        2)  Triple stream (MIMO)
  *
  *    5:  Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 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"):
  *  6-0:   10)  1 Mbps
  *         20)  2 Mbps
  *         55)  5.5 Mbps
  *        110)  11 Mbps
  */
 #define RATE_MCS_CODE_MSK 0x7
 #define RATE_MCS_SPATIAL_POS 3
 #define RATE_MCS_SPATIAL_MSK 0x18
 #define RATE_MCS_HT_DUP_POS 5
 #define RATE_MCS_HT_DUP_MSK 0x20
 /* Both legacy and HT use bits 7:0 as the CCK/OFDM rate or HT MCS */
 #define RATE_MCS_RATE_MSK 0xff
 
 /* 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 HT40 chnl width, (0) use 20 MHz legacy chnl width */
 #define RATE_MCS_HT40_POS 11
 #define RATE_MCS_HT40_MSK 0x800
 
 /* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (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
  * bit14:16
  */
 #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_AB_MSK (RATE_MCS_ANT_A_MSK | RATE_MCS_ANT_B_MSK)
 #define RATE_MCS_ANT_ABC_MSK    (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK)
 #define RATE_ANT_NUM 3
 
 #define POWER_TABLE_NUM_ENTRIES         33
 #define POWER_TABLE_NUM_HT_OFDM_ENTRIES     32
 #define POWER_TABLE_CCK_ENTRY           32
 
 #define IWL_PWR_NUM_HT_OFDM_ENTRIES     24
 #define IWL_PWR_CCK_ENTRIES         2
 
 /**
  * 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;
 } __packed;
 
 /**
  * Command REPLY_TX_POWER_DBM_CMD = 0x98
  * struct iwlagn_tx_power_dbm_cmd
  */
 #define IWLAGN_TX_POWER_AUTO 0x7f
 #define IWLAGN_TX_POWER_NO_CLOSED (0x1 << 6)
 
 struct iwlagn_tx_power_dbm_cmd {
     s8 global_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
     u8 flags;
     s8 srv_chan_lmt; /*in half-dBm (e.g. 30 = 15 dBm) */
     u8 reserved;
 } __packed;
 
 /**
  * Command TX_ANT_CONFIGURATION_CMD = 0x98
  * This command is used to configure valid Tx antenna.
  * By default uCode concludes the valid antenna according to the radio flavor.
  * This command enables the driver to override/modify this conclusion.
  */
 struct iwl_tx_ant_config_cmd {
     __le32 valid;
 } __packed;
 
 /******************************************************************************
  * (0a)
  * Alive and Error Commands & Responses:
  *
  *****************************************************************************/
 
 #define UCODE_VALID_OK  cpu_to_le32(0x1)
 
 /**
  * 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 agn, the format
  *     of the error log is defined by struct iwl_error_event_table.
  *
  * The Linux driver can print both logs to the system log when a uCode error
  * occurs.
  */
 
 /*
  * Note: This structure is read from the device with IO accesses,
  * and the reading already does the endian conversion. As it is
  * read with u32-sized accesses, any members with a different size
  * need to be ordered correctly though!
  */
 struct iwl_error_event_table {
     u32 valid;      /* (nonzero) valid, (0) log is empty */
     u32 error_id;       /* type of error */
     u32 pc;         /* program counter */
     u32 blink1;     /* branch link */
     u32 blink2;     /* branch link */
     u32 ilink1;     /* interrupt link */
     u32 ilink2;     /* interrupt link */
     u32 data1;      /* error-specific data */
     u32 data2;      /* error-specific data */
     u32 line;       /* source code line of error */
     u32 bcon_time;      /* beacon timer */
     u32 tsf_low;        /* network timestamp function timer */
     u32 tsf_hi;     /* network timestamp function timer */
     u32 gp1;        /* GP1 timer register */
     u32 gp2;        /* GP2 timer register */
     u32 gp3;        /* GP3 timer register */
     u32 ucode_ver;      /* uCode version */
     u32 hw_ver;     /* HW Silicon version */
     u32 brd_ver;        /* HW board version */
     u32 log_pc;     /* log program counter */
     u32 frame_ptr;      /* frame pointer */
     u32 stack_ptr;      /* stack pointer */
     u32 hcmd;       /* last host command header */
     u32 isr0;       /* isr status register LMPM_NIC_ISR0:
                  * rxtx_flag */
     u32 isr1;       /* isr status register LMPM_NIC_ISR1:
                  * host_flag */
     u32 isr2;       /* isr status register LMPM_NIC_ISR2:
                  * enc_flag */
     u32 isr3;       /* isr status register LMPM_NIC_ISR3:
                  * time_flag */
     u32 isr4;       /* isr status register LMPM_NIC_ISR4:
                  * wico interrupt */
     u32 isr_pref;       /* isr status register LMPM_NIC_PREF_STAT */
     u32 wait_event;     /* wait event() caller address */
     u32 l2p_control;    /* L2pControlField */
     u32 l2p_duration;   /* L2pDurationField */
     u32 l2p_mhvalid;    /* L2pMhValidBits */
     u32 l2p_addr_match; /* L2pAddrMatchStat */
     u32 lmpm_pmg_sel;   /* indicate which clocks are turned on
                  * (LMPM_PMG_SEL) */
     u32 u_timestamp;    /* indicate when the date and time of the
                  * compilation */
     u32 flow_handler;   /* FH read/write pointers, RX credit */
 } __packed;
 
 struct iwl_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;
 } __packed;
 
 /*
  * REPLY_ERROR = 0x2 (response only, not a command)
  */
 struct iwl_error_resp {
     __le32 error_type;
     u8 cmd_id;
     u8 reserved1;
     __le16 bad_cmd_seq_num;
     __le32 error_info;
     __le64 timestamp;
 } __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,
     RXON_DEV_TYPE_CP = 7,
     RXON_DEV_TYPE_2STA = 8,
     RXON_DEV_TYPE_P2P = 9,
 };
 
 
 #define RXON_RX_CHAIN_DRIVER_FORCE_MSK      cpu_to_le16(0x1 << 0)
 #define RXON_RX_CHAIN_DRIVER_FORCE_POS      (0)
 #define RXON_RX_CHAIN_VALID_MSK         cpu_to_le16(0x7 << 1)
 #define RXON_RX_CHAIN_VALID_POS         (1)
 #define RXON_RX_CHAIN_FORCE_SEL_MSK     cpu_to_le16(0x7 << 4)
 #define RXON_RX_CHAIN_FORCE_SEL_POS     (4)
 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK    cpu_to_le16(0x7 << 7)
 #define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS    (7)
 #define RXON_RX_CHAIN_CNT_MSK           cpu_to_le16(0x3 << 10)
 #define RXON_RX_CHAIN_CNT_POS           (10)
 #define RXON_RX_CHAIN_MIMO_CNT_MSK      cpu_to_le16(0x3 << 12)
 #define RXON_RX_CHAIN_MIMO_CNT_POS      (12)
 #define RXON_RX_CHAIN_MIMO_FORCE_MSK        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           cpu_to_le32(1 << 0)
 #define RXON_FLG_CCK_MSK                cpu_to_le32(1 << 1)
 /* auto detection enable */
 #define RXON_FLG_AUTO_DETECT_MSK        cpu_to_le32(1 << 2)
 /* TGg protection when tx */
 #define RXON_FLG_TGG_PROTECT_MSK        cpu_to_le32(1 << 3)
 /* cck short slot & preamble */
 #define RXON_FLG_SHORT_SLOT_MSK          cpu_to_le32(1 << 4)
 #define RXON_FLG_SHORT_PREAMBLE_MSK     cpu_to_le32(1 << 5)
 /* antenna selection */
 #define RXON_FLG_DIS_DIV_MSK            cpu_to_le32(1 << 7)
 #define RXON_FLG_ANT_SEL_MSK            cpu_to_le32(0x0f00)
 #define RXON_FLG_ANT_A_MSK              cpu_to_le32(1 << 8)
 #define RXON_FLG_ANT_B_MSK              cpu_to_le32(1 << 9)
 /* radar detection enable */
 #define RXON_FLG_RADAR_DETECT_MSK       cpu_to_le32(1 << 12)
 #define RXON_FLG_TGJ_NARROW_BAND_MSK    cpu_to_le32(1 << 13)
 /* rx response to host with 8-byte TSF
 * (according to ON_AIR deassertion) */
 #define RXON_FLG_TSF2HOST_MSK           cpu_to_le32(1 << 15)
 
 
 /* HT flags */
 #define RXON_FLG_CTRL_CHANNEL_LOC_POS       (22)
 #define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK    cpu_to_le32(0x1 << 22)
 
 #define RXON_FLG_HT_OPERATING_MODE_POS      (23)
 
 #define RXON_FLG_HT_PROT_MSK            cpu_to_le32(0x1 << 23)
 #define RXON_FLG_HT40_PROT_MSK          cpu_to_le32(0x2 << 23)
 
 #define RXON_FLG_CHANNEL_MODE_POS       (25)
 #define RXON_FLG_CHANNEL_MODE_MSK       cpu_to_le32(0x3 << 25)
 
 /* channel mode */
 enum {
     CHANNEL_MODE_LEGACY = 0,
     CHANNEL_MODE_PURE_40 = 1,
     CHANNEL_MODE_MIXED = 2,
     CHANNEL_MODE_RESERVED = 3,
 };
 #define RXON_FLG_CHANNEL_MODE_LEGACY    cpu_to_le32(CHANNEL_MODE_LEGACY << RXON_FLG_CHANNEL_MODE_POS)
 #define RXON_FLG_CHANNEL_MODE_PURE_40   cpu_to_le32(CHANNEL_MODE_PURE_40 << RXON_FLG_CHANNEL_MODE_POS)
 #define RXON_FLG_CHANNEL_MODE_MIXED cpu_to_le32(CHANNEL_MODE_MIXED << RXON_FLG_CHANNEL_MODE_POS)
 
 /* CTS to self (if spec allows) flag */
 #define RXON_FLG_SELF_CTS_EN            cpu_to_le32(0x1<<30)
 
 /* rx_config filter flags */
 /* accept all data frames */
 #define RXON_FILTER_PROMISC_MSK         cpu_to_le32(1 << 0)
 /* pass control & management to host */
 #define RXON_FILTER_CTL2HOST_MSK        cpu_to_le32(1 << 1)
 /* accept multi-cast */
 #define RXON_FILTER_ACCEPT_GRP_MSK      cpu_to_le32(1 << 2)
 /* don't decrypt uni-cast frames */
 #define RXON_FILTER_DIS_DECRYPT_MSK     cpu_to_le32(1 << 3)
 /* don't decrypt multi-cast frames */
 #define RXON_FILTER_DIS_GRP_DECRYPT_MSK cpu_to_le32(1 << 4)
 /* STA is associated */
 #define RXON_FILTER_ASSOC_MSK           cpu_to_le32(1 << 5)
 /* transfer to host non bssid beacons in associated state */
 #define RXON_FILTER_BCON_AWARE_MSK      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 iwl_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;
     u8 ofdm_ht_triple_stream_basic_rates;
     u8 reserved5;
     __le16 acquisition_data;
     __le16 reserved6;
 } __packed;
 
 /*
  * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
  */
 struct iwl_rxon_assoc_cmd {
     __le32 flags;
     __le32 filter_flags;
     u8 ofdm_basic_rates;
     u8 cck_basic_rates;
     __le16 reserved1;
     u8 ofdm_ht_single_stream_basic_rates;
     u8 ofdm_ht_dual_stream_basic_rates;
     u8 ofdm_ht_triple_stream_basic_rates;
     u8 reserved2;
     __le16 rx_chain_select_flags;
     __le16 acquisition_data;
     __le32 reserved3;
 } __packed;
 
 #define IWL_CONN_MAX_LISTEN_INTERVAL    10
 #define IWL_MAX_UCODE_BEACON_INTERVAL   4 /* 4096 */
 
 /*
  * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
  */
 struct iwl_rxon_time_cmd {
     __le64 timestamp;
     __le16 beacon_interval;
     __le16 atim_window;
     __le32 beacon_init_val;
     __le16 listen_interval;
     u8 dtim_period;
     u8 delta_cp_bss_tbtts;
 } __packed;
 
 /*
  * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
  */
 /**
  * struct iwl5000_channel_switch_cmd
  * @band: 0- 5.2GHz, 1- 2.4GHz
  * @expect_beacon: 0- resume transmits after channel switch
  *         1- wait for beacon to resume transmits
  * @channel: new channel number
  * @rxon_flags: Rx on flags
  * @rxon_filter_flags: filtering parameters
  * @switch_time: switch time in extended beacon format
  * @reserved: reserved bytes
  */
 struct iwl5000_channel_switch_cmd {
     u8 band;
     u8 expect_beacon;
     __le16 channel;
     __le32 rxon_flags;
     __le32 rxon_filter_flags;
     __le32 switch_time;
     __le32 reserved[2][IWL_PWR_NUM_HT_OFDM_ENTRIES + IWL_PWR_CCK_ENTRIES];
 } __packed;
 
 /**
  * struct iwl6000_channel_switch_cmd
  * @band: 0- 5.2GHz, 1- 2.4GHz
  * @expect_beacon: 0- resume transmits after channel switch
  *         1- wait for beacon to resume transmits
  * @channel: new channel number
  * @rxon_flags: Rx on flags
  * @rxon_filter_flags: filtering parameters
  * @switch_time: switch time in extended beacon format
  * @reserved: reserved bytes
  */
 struct iwl6000_channel_switch_cmd {
     u8 band;
     u8 expect_beacon;
     __le16 channel;
     __le32 rxon_flags;
     __le32 rxon_filter_flags;
     __le32 switch_time;
     __le32 reserved[3][IWL_PWR_NUM_HT_OFDM_ENTRIES + IWL_PWR_CCK_ENTRIES];
 } __packed;
 
 /*
  * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
  */
 struct iwl_csa_notification {
     __le16 band;
     __le16 channel;
     __le32 status;      /* 0 - OK, 1 - fail */
 } __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 iwl_ac_qos {
     __le16 cw_min;
     __le16 cw_max;
     u8 aifsn;
     u8 reserved1;
     __le16 edca_txop;
 } __packed;
 
 /* QoS flags defines */
 #define QOS_PARAM_FLG_UPDATE_EDCA_MSK   cpu_to_le32(0x01)
 #define QOS_PARAM_FLG_TGN_MSK       cpu_to_le32(0x02)
 #define QOS_PARAM_FLG_TXOP_TYPE_MSK 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 iwl_qosparam_cmd {
     __le32 qos_flags;
     struct iwl_ac_qos ac[AC_NUM];
 } __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_AP_ID_PAN       1
 #define IWL_STA_ID      2
 #define IWLAGN_PAN_BCAST_ID 14
 #define IWLAGN_BROADCAST_ID 15
 #define IWLAGN_STATION_COUNT    16
 
 #define IWL_TID_NON_QOS IWL_MAX_TID_COUNT
 
 #define STA_FLG_TX_RATE_MSK     cpu_to_le32(1 << 2)
 #define STA_FLG_PWR_SAVE_MSK        cpu_to_le32(1 << 8)
 #define STA_FLG_PAN_STATION     cpu_to_le32(1 << 13)
 #define STA_FLG_RTS_MIMO_PROT_MSK   cpu_to_le32(1 << 17)
 #define STA_FLG_AGG_MPDU_8US_MSK    cpu_to_le32(1 << 18)
 #define STA_FLG_MAX_AGG_SIZE_POS    (19)
 #define STA_FLG_MAX_AGG_SIZE_MSK    cpu_to_le32(3 << 19)
 #define STA_FLG_HT40_EN_MSK     cpu_to_le32(1 << 21)
 #define STA_FLG_MIMO_DIS_MSK        cpu_to_le32(1 << 22)
 #define STA_FLG_AGG_MPDU_DENSITY_POS    (23)
 #define STA_FLG_AGG_MPDU_DENSITY_MSK    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 cpu_to_le16(0x0007)
 #define STA_KEY_FLG_NO_ENC  cpu_to_le16(0x0000)
 #define STA_KEY_FLG_WEP     cpu_to_le16(0x0001)
 #define STA_KEY_FLG_CCMP    cpu_to_le16(0x0002)
 #define STA_KEY_FLG_TKIP    cpu_to_le16(0x0003)
 
 #define STA_KEY_FLG_KEYID_POS   8
 #define STA_KEY_FLG_INVALID     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 cpu_to_le16(0x0008)
 
 /* wep key in STA: 5-bytes (0) or 13-bytes (1) */
 #define STA_KEY_FLG_KEY_SIZE_MSK     cpu_to_le16(0x1000)
 #define STA_KEY_MULTICAST_MSK        cpu_to_le16(0x4000)
 #define STA_KEY_MAX_NUM     8
 #define STA_KEY_MAX_NUM_PAN 16
 /* must not match WEP_INVALID_OFFSET */
 #define IWLAGN_HW_KEY_DEFAULT   0xfe
 
 /* 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
 #define STA_MODIFY_SLEEP_TX_COUNT_MSK   0x20
 
 /* agn */
 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;
 } __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;
 } __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 (agn devices uses
  * REPLY_TX_LINK_QUALITY_CMD,
  *
  * 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 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 legacy_reserved;
 
     /* 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;
 
     /*
      * Number of packets OK to transmit to station even though
      * it is asleep -- used to synchronise PS-poll and u-APSD
      * responses while ucode keeps track of STA sleep state.
      */
     __le16 sleep_tx_count;
 
     __le16 reserved2;
 } __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 iwl_add_sta_resp {
     u8 status;  /* ADD_STA_* */
 } __packed;
 
 #define REM_STA_SUCCESS_MSK              0x1
 /*
  *  REPLY_REM_STA = 0x19 (response)
  */
 struct iwl_rem_sta_resp {
     u8 status;
 } __packed;
 
 /*
  *  REPLY_REM_STA = 0x19 (command)
  */
 struct iwl_rem_sta_cmd {
     u8 num_sta;     /* number of removed stations */
     u8 reserved[3];
     u8 addr[ETH_ALEN]; /* MAC addr of the first station */
     u8 reserved2[2];
 } __packed;
 
 
 /* WiFi queues mask */
 #define IWL_SCD_BK_MSK          BIT(0)
 #define IWL_SCD_BE_MSK          BIT(1)
 #define IWL_SCD_VI_MSK          BIT(2)
 #define IWL_SCD_VO_MSK          BIT(3)
 #define IWL_SCD_MGMT_MSK        BIT(3)
 
 /* PAN queues mask */
 #define IWL_PAN_SCD_BK_MSK      BIT(4)
 #define IWL_PAN_SCD_BE_MSK      BIT(5)
 #define IWL_PAN_SCD_VI_MSK      BIT(6)
 #define IWL_PAN_SCD_VO_MSK      BIT(7)
 #define IWL_PAN_SCD_MGMT_MSK        BIT(7)
 #define IWL_PAN_SCD_MULTICAST_MSK   BIT(8)
 
 #define IWL_AGG_TX_QUEUE_MSK        0xffc00
 
 #define IWL_DROP_ALL            BIT(1)
 
 /*
  * REPLY_TXFIFO_FLUSH = 0x1e(command and response)
  *
  * When using full FIFO flush this command checks the scheduler HW block WR/RD
  * pointers to check if all the frames were transferred by DMA into the
  * relevant TX FIFO queue. Only when the DMA is finished and the queue is
  * empty the command can finish.
  * This command is used to flush the TXFIFO from transmit commands, it may
  * operate on single or multiple queues, the command queue can't be flushed by
  * this command. The command response is returned when all the queue flush
  * operations are done. Each TX command flushed return response with the FLUSH
  * status set in the TX response status. When FIFO flush operation is used,
  * the flush operation ends when both the scheduler DMA done and TXFIFO empty
  * are set.
  *
  * @queue_control: bit mask for which queues to flush
  * @flush_control: flush controls
  *  0: Dump single MSDU
  *  1: Dump multiple MSDU according to PS, INVALID STA, TTL, TID disable.
  *  2: Dump all FIFO
  */
 struct iwl_txfifo_flush_cmd_v3 {
     __le32 queue_control;
     __le16 flush_control;
     __le16 reserved;
 } __packed;
 
 struct iwl_txfifo_flush_cmd_v2 {
     __le16 queue_control;
     __le16 flush_control;
 } __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];
 } __packed;
 
 struct iwl_wep_cmd {
     u8 num_keys;
     u8 global_key_type;
     u8 flags;
     u8 reserved;
     struct iwl_wep_key key[];
 } __packed;
 
 #define WEP_KEY_WEP_TYPE 1
 #define WEP_KEYS_MAX 4
 #define WEP_INVALID_OFFSET 0xff
 #define WEP_KEY_LEN_64 5
 #define WEP_KEY_LEN_128 13
 
 /******************************************************************************
  * (4)
  * Rx Responses:
  *
  *****************************************************************************/
 
 #define RX_RES_STATUS_NO_CRC32_ERROR    cpu_to_le32(1 << 0)
 #define RX_RES_STATUS_NO_RXE_OVERFLOW   cpu_to_le32(1 << 1)
 
 #define RX_RES_PHY_FLAGS_BAND_24_MSK    cpu_to_le16(1 << 0)
 #define RX_RES_PHY_FLAGS_MOD_CCK_MSK        cpu_to_le16(1 << 1)
 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2)
 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK    cpu_to_le16(1 << 3)
 #define RX_RES_PHY_FLAGS_ANTENNA_MSK        0x70
 #define RX_RES_PHY_FLAGS_ANTENNA_POS        4
 #define RX_RES_PHY_FLAGS_AGG_MSK        cpu_to_le16(1 << 7)
 
 #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)
 
 
 #define IWLAGN_RX_RES_PHY_CNT 8
 #define IWLAGN_RX_RES_AGC_IDX     1
 #define IWLAGN_RX_RES_RSSI_AB_IDX 2
 #define IWLAGN_RX_RES_RSSI_C_IDX  3
 #define IWLAGN_OFDM_AGC_MSK 0xfe00
 #define IWLAGN_OFDM_AGC_BIT_POS 9
 #define IWLAGN_OFDM_RSSI_INBAND_A_BITMSK 0x00ff
 #define IWLAGN_OFDM_RSSI_ALLBAND_A_BITMSK 0xff00
 #define IWLAGN_OFDM_RSSI_A_BIT_POS 0
 #define IWLAGN_OFDM_RSSI_INBAND_B_BITMSK 0xff0000
 #define IWLAGN_OFDM_RSSI_ALLBAND_B_BITMSK 0xff000000
 #define IWLAGN_OFDM_RSSI_B_BIT_POS 16
 #define IWLAGN_OFDM_RSSI_INBAND_C_BITMSK 0x00ff
 #define IWLAGN_OFDM_RSSI_ALLBAND_C_BITMSK 0xff00
 #define IWLAGN_OFDM_RSSI_C_BIT_POS 0
 
 struct iwlagn_non_cfg_phy {
     __le32 non_cfg_phy[IWLAGN_RX_RES_PHY_CNT];  /* up to 8 phy entries */
 } __packed;
 
 
 /*
  * REPLY_RX = 0xc3 (response only, not a command)
  * Used only for legacy (non 11n) frames.
  */
 struct iwl_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 */
     u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
     __le32 rate_n_flags;    /* RATE_MCS_* */
     __le16 byte_count;  /* frame's byte-count */
     __le16 frame_time;  /* frame's time on the air */
 } __packed;
 
 struct iwl_rx_mpdu_res_start {
     __le16 byte_count;
     __le16 reserved;
 } __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.
  *
  * 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_TX_LINK_QUALITY_CMD (agn).
  *
  * 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 RTS/CTS protocol or CTS-to-self if spec allows it
  * before this frame. if CTS-to-self required check
  * RXON_FLG_SELF_CTS_EN status.
  */
 #define TX_CMD_FLG_PROT_REQUIRE_MSK cpu_to_le32(1 << 0)
 
 /* 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 cpu_to_le32(1 << 3)
 
 /* For agn devices:
  * 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 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  cpu_to_le32(1 << 6)
 
 /* Tx antenna selection field; reserved (0) for agn devices. */
 #define TX_CMD_FLG_ANT_SEL_MSK cpu_to_le32(0xf00)
 
 /* 1: Ignore Bluetooth priority for this frame.
  * 0: Delay Tx until Bluetooth device is done (normal usage). */
 #define TX_CMD_FLG_IGNORE_BT 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 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 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 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 cpu_to_le32(1 << 20)
 
 /* accelerate aggregation support
  * 0 - no CCMP encryption; 1 - CCMP encryption */
 #define TX_CMD_FLG_AGG_CCMP_MSK cpu_to_le32(1 << 22)
 
 /* HCCA-AP - disable duration overwriting. */
 #define TX_CMD_FLG_DUR_MSK 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
 
 /*
  * REPLY_TX = 0x1c (command)
  */
 
 /*
  * Used for managing Tx retries when expecting block-acks.
  * Driver should set these fields to 0.
  */
 struct iwl_dram_scratch {
     u8 try_cnt;     /* Tx attempts */
     u8 bt_kill_cnt;     /* Tx attempts blocked by Bluetooth device */
     __le16 reserved;
 } __packed;
 
 struct iwl_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_* */
 
     /* 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 iwl_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
      */
     union {
         DECLARE_FLEX_ARRAY(u8, payload);
         DECLARE_FLEX_ARRAY(struct ieee80211_hdr, hdr);
     };
 } __packed;
 
 /*
  * TX command response is sent after *agn* transmission attempts.
  *
  * both postpone and abort status are expected behavior from uCode. there is
  * no special operation required from driver; except for RFKILL_FLUSH,
  * which required tx flush host command to flush all the tx frames in queues
  */
 enum {
     TX_STATUS_SUCCESS = 0x01,
     TX_STATUS_DIRECT_DONE = 0x02,
     /* postpone TX */
     TX_STATUS_POSTPONE_DELAY = 0x40,
     TX_STATUS_POSTPONE_FEW_BYTES = 0x41,
     TX_STATUS_POSTPONE_BT_PRIO = 0x42,
     TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43,
     TX_STATUS_POSTPONE_CALC_TTAK = 0x44,
     /* abort TX */
     TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81,
     TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
     TX_STATUS_FAIL_LONG_LIMIT = 0x83,
     TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
     TX_STATUS_FAIL_DRAIN_FLOW = 0x85,
     TX_STATUS_FAIL_RFKILL_FLUSH = 0x86,
     TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
     TX_STATUS_FAIL_DEST_PS = 0x88,
     TX_STATUS_FAIL_HOST_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_FIFO_FLUSHED = 0x8e,
     TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
     TX_STATUS_FAIL_PASSIVE_NO_RX = 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_STATUS_MSK   0x00000fff  /* bits 0:11 */
 #define AGG_TX_TRY_MSK      0x0000f000  /* bits 12:15 */
 #define AGG_TX_TRY_POS      12
 
 #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 agn device records
  *     this status.
  *     This status relates to reasons the tx might have been blocked or aborted
  *     within the sending station (this agn device), rather than whether it was
  *     received successfully by the destination station.
  */
 struct agg_tx_status {
     __le16 status;
     __le16 sequence;
 } __packed;
 
 /* refer to ra_tid */
 #define IWLAGN_TX_RES_TID_POS   0
 #define IWLAGN_TX_RES_TID_MSK   0x0f
 #define IWLAGN_TX_RES_RA_POS    4
 #define IWLAGN_TX_RES_RA_MSK    0xf0
 
 struct iwlagn_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 */
 
     u8 pa_status;       /* RF power amplifier measurement (not used) */
     u8 pa_integ_res_a[3];
     u8 pa_integ_res_b[3];
     u8 pa_integ_res_C[3];
 
     __le32 tfd_info;
     __le16 seq_ctl;
     __le16 byte_cnt;
     u8 tlc_info;
     u8 ra_tid;      /* tid (0:3), sta_id (4:7) */
     __le16 frame_ctrl;
     /*
      * 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!)
      */
     struct agg_tx_status status;    /* TX status (in aggregation -
                      * status of 1st frame) */
 } __packed;
 /*
  * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
  *
  * Reports Block-Acknowledge from recipient station
  */
 struct iwl_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;
     u8 txed;    /* number of frames sent */
     u8 txed_2_done; /* number of frames acked */
     __le16 reserved1;
 } __packed;
 
 /*
  * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
  *
  */
 
 /*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 */
     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];
 } __packed;
 
 #define LINK_QUAL_AGG_TIME_LIMIT_DEF    (4000) /* 4 milliseconds */
 #define LINK_QUAL_AGG_TIME_LIMIT_MAX    (8000)
 #define LINK_QUAL_AGG_TIME_LIMIT_MIN    (100)
 
 #define LINK_QUAL_AGG_DISABLE_START_DEF (3)
 #define LINK_QUAL_AGG_DISABLE_START_MAX (255)
 #define LINK_QUAL_AGG_DISABLE_START_MIN (0)
 
 #define LINK_QUAL_AGG_FRAME_LIMIT_DEF   (63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MAX   (63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MIN   (0)
 
 /**
  * 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.
      * default set to 4000 (4 milliseconds) if not configured in .cfg
      */
     __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;
 } __packed;
 
 /*
  * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
  *
  * For agn devices
  *
  * Each station in the agn device'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 agn device'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 HT40 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 HT40 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 agn devices, 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 agn device 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 acknowledgment 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.
      * agn devices 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;
 } __packed;
 
 /*
  * BT configuration enable flags:
  *   bit 0 - 1: BT channel announcement enabled
  *           0: disable
  *   bit 1 - 1: priority of BT device enabled
  *           0: disable
  *   bit 2 - 1: BT 2 wire support enabled
  *           0: disable
  */
 #define BT_COEX_DISABLE (0x0)
 #define BT_ENABLE_CHANNEL_ANNOUNCE BIT(0)
 #define BT_ENABLE_PRIORITY     BIT(1)
 #define BT_ENABLE_2_WIRE       BIT(2)
 
 #define BT_COEX_DISABLE (0x0)
 #define BT_COEX_ENABLE  (BT_ENABLE_CHANNEL_ANNOUNCE | BT_ENABLE_PRIORITY)
 
 #define BT_LEAD_TIME_MIN (0x0)
 #define BT_LEAD_TIME_DEF (0x1E)
 #define BT_LEAD_TIME_MAX (0xFF)
 
 #define BT_MAX_KILL_MIN (0x1)
 #define BT_MAX_KILL_DEF (0x5)
 #define BT_MAX_KILL_MAX (0xFF)
 
 #define BT_DURATION_LIMIT_DEF   625
 #define BT_DURATION_LIMIT_MAX   1250
 #define BT_DURATION_LIMIT_MIN   625
 
 #define BT_ON_THRESHOLD_DEF 4
 #define BT_ON_THRESHOLD_MAX 1000
 #define BT_ON_THRESHOLD_MIN 1
 
 #define BT_FRAG_THRESHOLD_DEF   0
 #define BT_FRAG_THRESHOLD_MAX   0
 #define BT_FRAG_THRESHOLD_MIN   0
 
 #define BT_AGG_THRESHOLD_DEF    1200
 #define BT_AGG_THRESHOLD_MAX    8000
 #define BT_AGG_THRESHOLD_MIN    400
 
 /*
  * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
  *
  * agn devices 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 accommodate.
  */
 struct iwl_bt_cmd {
     u8 flags;
     u8 lead_time;
     u8 max_kill;
     u8 reserved;
     __le32 kill_ack_mask;
     __le32 kill_cts_mask;
 } __packed;
 
 #define IWLAGN_BT_FLAG_CHANNEL_INHIBITION   BIT(0)
 
 #define IWLAGN_BT_FLAG_COEX_MODE_MASK       (BIT(3)|BIT(4)|BIT(5))
 #define IWLAGN_BT_FLAG_COEX_MODE_SHIFT      3
 #define IWLAGN_BT_FLAG_COEX_MODE_DISABLED   0
 #define IWLAGN_BT_FLAG_COEX_MODE_LEGACY_2W  1
 #define IWLAGN_BT_FLAG_COEX_MODE_3W     2
 #define IWLAGN_BT_FLAG_COEX_MODE_4W     3
 
 #define IWLAGN_BT_FLAG_UCODE_DEFAULT        BIT(6)
 /* Disable Sync PSPoll on SCO/eSCO */
 #define IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE    BIT(7)
 
 #define IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD    -75 /* dBm */
 #define IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD    -65 /* dBm */
 
 #define IWLAGN_BT_PRIO_BOOST_MAX    0xFF
 #define IWLAGN_BT_PRIO_BOOST_MIN    0x00
 #define IWLAGN_BT_PRIO_BOOST_DEFAULT    0xF0
 #define IWLAGN_BT_PRIO_BOOST_DEFAULT32  0xF0F0F0F0
 
 #define IWLAGN_BT_MAX_KILL_DEFAULT  5
 
 #define IWLAGN_BT3_T7_DEFAULT       1
 
 enum iwl_bt_kill_idx {
     IWL_BT_KILL_DEFAULT = 0,
     IWL_BT_KILL_OVERRIDE = 1,
     IWL_BT_KILL_REDUCE = 2,
 };
 
 #define IWLAGN_BT_KILL_ACK_MASK_DEFAULT cpu_to_le32(0xffff0000)
 #define IWLAGN_BT_KILL_CTS_MASK_DEFAULT cpu_to_le32(0xffff0000)
 #define IWLAGN_BT_KILL_ACK_CTS_MASK_SCO cpu_to_le32(0xffffffff)
 #define IWLAGN_BT_KILL_ACK_CTS_MASK_REDUCE  cpu_to_le32(0)
 
 #define IWLAGN_BT3_PRIO_SAMPLE_DEFAULT  2
 
 #define IWLAGN_BT3_T2_DEFAULT       0xc
 
 #define IWLAGN_BT_VALID_ENABLE_FLAGS    cpu_to_le16(BIT(0))
 #define IWLAGN_BT_VALID_BOOST       cpu_to_le16(BIT(1))
 #define IWLAGN_BT_VALID_MAX_KILL    cpu_to_le16(BIT(2))
 #define IWLAGN_BT_VALID_3W_TIMERS   cpu_to_le16(BIT(3))
 #define IWLAGN_BT_VALID_KILL_ACK_MASK   cpu_to_le16(BIT(4))
 #define IWLAGN_BT_VALID_KILL_CTS_MASK   cpu_to_le16(BIT(5))
 #define IWLAGN_BT_VALID_REDUCED_TX_PWR  cpu_to_le16(BIT(6))
 #define IWLAGN_BT_VALID_3W_LUT      cpu_to_le16(BIT(7))
 
 #define IWLAGN_BT_ALL_VALID_MSK     (IWLAGN_BT_VALID_ENABLE_FLAGS | \
                     IWLAGN_BT_VALID_BOOST | \
                     IWLAGN_BT_VALID_MAX_KILL | \
                     IWLAGN_BT_VALID_3W_TIMERS | \
                     IWLAGN_BT_VALID_KILL_ACK_MASK | \
                     IWLAGN_BT_VALID_KILL_CTS_MASK | \
                     IWLAGN_BT_VALID_REDUCED_TX_PWR | \
                     IWLAGN_BT_VALID_3W_LUT)
 
 #define IWLAGN_BT_REDUCED_TX_PWR    BIT(0)
 
 #define IWLAGN_BT_DECISION_LUT_SIZE 12
 
 struct iwl_basic_bt_cmd {
     u8 flags;
     u8 ledtime; /* unused */
     u8 max_kill;
     u8 bt3_timer_t7_value;
     __le32 kill_ack_mask;
     __le32 kill_cts_mask;
     u8 bt3_prio_sample_time;
     u8 bt3_timer_t2_value;
     __le16 bt4_reaction_time; /* unused */
     __le32 bt3_lookup_table[IWLAGN_BT_DECISION_LUT_SIZE];
     /*
      * bit 0: use reduced tx power for control frame
      * bit 1 - 7: reserved
      */
     u8 reduce_txpower;
     u8 reserved;
     __le16 valid;
 };
 
 struct iwl_bt_cmd_v1 {
     struct iwl_basic_bt_cmd basic;
     u8 prio_boost;
     /*
      * set IWLAGN_BT_VALID_BOOST to "1" in "valid" bitmask
      * if configure the following patterns
      */
     u8 tx_prio_boost;   /* SW boost of WiFi tx priority */
     __le16 rx_prio_boost;   /* SW boost of WiFi rx priority */
 };
 
 struct iwl_bt_cmd_v2 {
     struct iwl_basic_bt_cmd basic;
     __le32 prio_boost;
     /*
      * set IWLAGN_BT_VALID_BOOST to "1" in "valid" bitmask
      * if configure the following patterns
      */
     u8 reserved;
     u8 tx_prio_boost;   /* SW boost of WiFi tx priority */
     __le16 rx_prio_boost;   /* SW boost of WiFi rx priority */
 };
 
 #define IWLAGN_BT_SCO_ACTIVE    cpu_to_le32(BIT(0))
 
 struct iwlagn_bt_sco_cmd {
     __le32 flags;
 };
 
 /******************************************************************************
  * (6)
  * Spectrum Management (802.11h) Commands, Responses, Notifications:
  *
  *****************************************************************************/
 
 /*
  * Spectrum Management
  */
 #define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK         | \
                  RXON_FILTER_CTL2HOST_MSK        | \
                  RXON_FILTER_ACCEPT_GRP_MSK      | \
                  RXON_FILTER_DIS_DECRYPT_MSK     | \
                  RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
                  RXON_FILTER_ASSOC_MSK           | \
                  RXON_FILTER_BCON_AWARE_MSK)
 
 struct iwl_measure_channel {
     __le32 duration;    /* measurement duration in extended beacon
                  * format */
     u8 channel;     /* channel to measure */
     u8 type;        /* see enum iwl_measure_type */
     __le16 reserved;
 } __packed;
 
 /*
  * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
  */
 struct iwl_spectrum_cmd {
     __le16 len;     /* number of bytes starting from token */
     u8 token;       /* token id */
     u8 id;          /* measurement id -- 0 or 1 */
     u8 origin;      /* 0 = TGh, 1 = other, 2 = TGk */
     u8 periodic;        /* 1 = periodic */
     __le16 path_loss_timeout;
     __le32 start_time;  /* start time in extended beacon format */
     __le32 reserved2;
     __le32 flags;       /* rxon flags */
     __le32 filter_flags;    /* rxon filter flags */
     __le16 channel_count;   /* minimum 1, maximum 10 */
     __le16 reserved3;
     struct iwl_measure_channel channels[10];
 } __packed;
 
 /*
  * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
  */
 struct iwl_spectrum_resp {
     u8 token;
     u8 id;          /* id of the prior command replaced, or 0xff */
     __le16 status;      /* 0 - command will be handled
                  * 1 - cannot handle (conflicts with another
                  *     measurement) */
 } __packed;
 
 enum iwl_measurement_state {
     IWL_MEASUREMENT_START = 0,
     IWL_MEASUREMENT_STOP = 1,
 };
 
 enum iwl_measurement_status {
     IWL_MEASUREMENT_OK = 0,
     IWL_MEASUREMENT_CONCURRENT = 1,
     IWL_MEASUREMENT_CSA_CONFLICT = 2,
     IWL_MEASUREMENT_TGH_CONFLICT = 3,
     /* 4-5 reserved */
     IWL_MEASUREMENT_STOPPED = 6,
     IWL_MEASUREMENT_TIMEOUT = 7,
     IWL_MEASUREMENT_PERIODIC_FAILED = 8,
 };
 
 #define NUM_ELEMENTS_IN_HISTOGRAM 8
 
 struct iwl_measurement_histogram {
     __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
     __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM];  /* in 1usec counts */
 } __packed;
 
 /* clear channel availability counters */
 struct iwl_measurement_cca_counters {
     __le32 ofdm;
     __le32 cck;
 } __packed;
 
 enum iwl_measure_type {
     IWL_MEASURE_BASIC = (1 << 0),
     IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
     IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
     IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
     IWL_MEASURE_FRAME = (1 << 4),
     /* bits 5:6 are reserved */
     IWL_MEASURE_IDLE = (1 << 7),
 };
 
 /*
  * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
  */
 struct iwl_spectrum_notification {
     u8 id;          /* measurement id -- 0 or 1 */
     u8 token;
     u8 channel_index;   /* index in measurement channel list */
     u8 state;       /* 0 - start, 1 - stop */
     __le32 start_time;  /* lower 32-bits of TSF */
     u8 band;        /* 0 - 5.2GHz, 1 - 2.4GHz */
     u8 channel;
     u8 type;        /* see enum iwl_measurement_type */
     u8 reserved1;
     /* NOTE:  cca_ofdm, cca_cck, basic_type, and histogram are only only
      * valid if applicable for measurement type requested. */
     __le32 cca_ofdm;    /* cca fraction time in 40Mhz clock periods */
     __le32 cca_cck;     /* cca fraction time in 44Mhz clock periods */
     __le32 cca_time;    /* channel load time in usecs */
     u8 basic_type;      /* 0 - bss, 1 - ofdm preamble, 2 -
                  * unidentified */
     u8 reserved2[3];
     struct iwl_measurement_histogram histogram;
     __le32 stop_time;   /* lower 32-bits of TSF */
     __le32 status;      /* see iwl_measurement_status */
 } __packed;
 
 /******************************************************************************
  * (7)
  * Power Management Commands, Responses, Notifications:
  *
  *****************************************************************************/
 
 /**
  * struct iwl_powertable_cmd - Power Table Command
  * @flags: See below:
  *
  * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
  *
  * PM allow:
  *   bit 0 - '0' Driver not allow power management
  *           '1' Driver allow PM (use rest of parameters)
  *
  * uCode send sleep notifications:
  *   bit 1 - '0' Don't send sleep notification
  *           '1' send sleep notification (SEND_PM_NOTIFICATION)
  *
  * Sleep over DTIM
  *   bit 2 - '0' PM have to walk up every DTIM
  *           '1' PM could sleep over DTIM till listen Interval.
  *
  * PCI power managed
  *   bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
  *           '1' !(PCI_CFG_LINK_CTRL & 0x1)
  *
  * Fast PD
  *   bit 4 - '1' Put radio to sleep when receiving frame for others
  *
  * 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 wake up
  * for every DTIM.
  */
 #define IWL_POWER_VEC_SIZE 5
 
 #define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK    cpu_to_le16(BIT(0))
 #define IWL_POWER_POWER_SAVE_ENA_MSK        cpu_to_le16(BIT(0))
 #define IWL_POWER_POWER_MANAGEMENT_ENA_MSK  cpu_to_le16(BIT(1))
 #define IWL_POWER_SLEEP_OVER_DTIM_MSK       cpu_to_le16(BIT(2))
 #define IWL_POWER_PCI_PM_MSK            cpu_to_le16(BIT(3))
 #define IWL_POWER_FAST_PD           cpu_to_le16(BIT(4))
 #define IWL_POWER_BEACON_FILTERING      cpu_to_le16(BIT(5))
 #define IWL_POWER_SHADOW_REG_ENA        cpu_to_le16(BIT(6))
 #define IWL_POWER_CT_KILL_SET           cpu_to_le16(BIT(7))
 #define IWL_POWER_BT_SCO_ENA            cpu_to_le16(BIT(8))
 #define IWL_POWER_ADVANCE_PM_ENA_MSK        cpu_to_le16(BIT(9))
 
 struct iwl_powertable_cmd {
     __le16 flags;
     u8 keep_alive_seconds;
     u8 debug_flags;
     __le32 rx_data_timeout;
     __le32 tx_data_timeout;
     __le32 sleep_interval[IWL_POWER_VEC_SIZE];
     __le32 keep_alive_beacons;
 } __packed;
 
 /*
  * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
  * all devices identical.
  */
 struct iwl_sleep_notification {
     u8 pm_sleep_mode;
     u8 pm_wakeup_src;
     __le16 reserved;
     __le32 sleep_time;
     __le32 tsf_low;
     __le32 bcon_timer;
 } __packed;
 
 /* Sleep states.  all devices identical. */
 enum {
     IWL_PM_NO_SLEEP = 0,
     IWL_PM_SLP_MAC = 1,
     IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
     IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
     IWL_PM_SLP_PHY = 4,
     IWL_PM_SLP_REPENT = 5,
     IWL_PM_WAKEUP_BY_TIMER = 6,
     IWL_PM_WAKEUP_BY_DRIVER = 7,
     IWL_PM_WAKEUP_BY_RFKILL = 8,
     /* 3 reserved */
     IWL_PM_NUM_OF_MODES = 12,
 };
 
 /*
  * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
  */
 #define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
 #define CARD_STATE_CMD_ENABLE  0x01 /* Wake up card */
 #define CARD_STATE_CMD_HALT    0x02 /* Power down permanently */
 struct iwl_card_state_cmd {
     __le32 status;      /* CARD_STATE_CMD_* request new power state */
 } __packed;
 
 /*
  * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
  */
 struct iwl_card_state_notif {
     __le32 flags;
 } __packed;
 
 #define HW_CARD_DISABLED   0x01
 #define SW_CARD_DISABLED   0x02
 #define CT_CARD_DISABLED   0x04
 #define RXON_CARD_DISABLED 0x10
 
 struct iwl_ct_kill_config {
     __le32   reserved;
     __le32   critical_temperature_M;
     __le32   critical_temperature_R;
 }  __packed;
 
 /* 1000, and 6x00 */
 struct iwl_ct_kill_throttling_config {
     __le32   critical_temperature_exit;
     __le32   reserved;
     __le32   critical_temperature_enter;
 }  __packed;
 
 /******************************************************************************
  * (8)
  * Scan Commands, Responses, Notifications:
  *
  *****************************************************************************/
 
 #define SCAN_CHANNEL_TYPE_PASSIVE cpu_to_le32(0)
 #define SCAN_CHANNEL_TYPE_ACTIVE  cpu_to_le32(1)
 
 /**
  * struct iwl_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 iwl_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 iwl_scan_channel {
     /*
      * type is defined as:
      * 0:0 1 = active, 0 = passive
      * 1:20 SSID direct bit map; if a bit is set, then corresponding
      *     SSID IE is transmitted in probe request.
      * 21:31 reserved
      */
     __le32 type;
     __le16 channel; /* band is selected by iwl_scan_cmd "flags" field */
     u8 tx_gain;     /* gain for analog radio */
     u8 dsp_atten;       /* gain for DSP */
     __le16 active_dwell;    /* in 1024-uSec TU (time units), typ 5-50 */
     __le16 passive_dwell;   /* in 1024-uSec TU (time units), typ 20-500 */
 } __packed;
 
 /* set number of direct probes __le32 type */
 #define IWL_SCAN_PROBE_MASK(n)  cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
 
 /**
  * struct iwl_ssid_ie - directed scan network information element
  *
  * Up to 20 of these may appear in REPLY_SCAN_CMD,
  * selected by "type" bit field in struct iwl_scan_channel;
  * each channel may select different ssids from among the 20 entries.
  * SSID IEs get transmitted in reverse order of entry.
  */
 struct iwl_ssid_ie {
     u8 id;
     u8 len;
     u8 ssid[32];
 } __packed;
 
 #define PROBE_OPTION_MAX        20
 #define TX_CMD_LIFE_TIME_INFINITE   cpu_to_le32(0xFFFFFFFF)
 #define IWL_GOOD_CRC_TH_DISABLED    0
 #define IWL_GOOD_CRC_TH_DEFAULT     cpu_to_le16(1)
 #define IWL_GOOD_CRC_TH_NEVER       cpu_to_le16(0xffff)
 #define IWL_MAX_CMD_SIZE 4096
 
 /*
  * 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 iwl_scan_channel.
  */
 
 enum iwl_scan_flags {
     /* BIT(0) currently unused */
     IWL_SCAN_FLAGS_ACTION_FRAME_TX  = BIT(1),
     /* bits 2-7 reserved */
 };
 
 struct iwl_scan_cmd {
     __le16 len;
     u8 scan_flags;      /* scan flags: see enum iwl_scan_flags */
     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:
                  */
     __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 iwl_tx_cmd tx_cmd;
 
     /* For directed active scans (set to all-0s otherwise) */
     struct iwl_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 iwl_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[];
 } __packed;
 
 /* Can abort will notify by complete notification with abort status. */
 #define CAN_ABORT_STATUS    cpu_to_le32(0x1)
 /* complete notification statuses */
 #define ABORT_STATUS            0x2
 
 /*
  * REPLY_SCAN_CMD = 0x80 (response)
  */
 struct iwl_scanreq_notification {
     __le32 status;      /* 1: okay, 2: cannot fulfill request */
 } __packed;
 
 /*
  * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
  */
 struct iwl_scanstart_notification {
     __le32 tsf_low;
     __le32 tsf_high;
     __le32 beacon_timer;
     u8 channel;
     u8 band;
     u8 reserved[2];
     __le32 status;
 } __packed;
 
 #define  SCAN_OWNER_STATUS 0x1
 #define  MEASURE_OWNER_STATUS 0x2
 
 #define IWL_PROBE_STATUS_OK     0
 #define IWL_PROBE_STATUS_TX_FAILED  BIT(0)
 /* error statuses combined with TX_FAILED */
 #define IWL_PROBE_STATUS_FAIL_TTL   BIT(1)
 #define IWL_PROBE_STATUS_FAIL_BT    BIT(2)
 
 #define NUMBER_OF_STATISTICS 1  /* first __le32 is good CRC */
 /*
  * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
  */
 struct iwl_scanresults_notification {
     u8 channel;
     u8 band;
     u8 probe_status;
     u8 num_probe_not_sent; /* not enough time to send */
     __le32 tsf_low;
     __le32 tsf_high;
     __le32 statistics[NUMBER_OF_STATISTICS];
 } __packed;
 
 /*
  * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
  */
 struct iwl_scancomplete_notification {
     u8 scanned_channels;
     u8 status;
     u8 bt_status;   /* BT On/Off status */
     u8 last_channel;
     __le32 tsf_low;
     __le32 tsf_high;
 } __packed;
 
 
 /******************************************************************************
  * (9)
  * IBSS/AP Commands and Notifications:
  *
  *****************************************************************************/
 
 enum iwl_ibss_manager {
     IWL_NOT_IBSS_MANAGER = 0,
     IWL_IBSS_MANAGER = 1,
 };
 
 /*
  * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
  */
 
 struct iwlagn_beacon_notif {
     struct iwlagn_tx_resp beacon_notify_hdr;
     __le32 low_tsf;
     __le32 high_tsf;
     __le32 ibss_mgr_status;
 } __packed;
 
 /*
  * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
  */
 
 struct iwl_tx_beacon_cmd {
     struct iwl_tx_cmd tx;
     __le16 tim_idx;
     u8 tim_size;
     u8 reserved1;
     struct ieee80211_hdr frame[];   /* beacon frame */
 } __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;
 } __packed;
 
 /* statistics command response */
 
 struct statistics_dbg {
     __le32 burst_check;
     __le32 burst_count;
     __le32 wait_for_silence_timeout_cnt;
     __le32 reserved[3];
 } __packed;
 
 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;
 } __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 unsupport_mcs;
 } __packed;
 
 #define INTERFERENCE_DATA_AVAILABLE      cpu_to_le32(1)
 
 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;
 } __packed;
 
 struct statistics_rx_non_phy_bt {
     struct statistics_rx_non_phy common;
     /* additional stats for bt */
     __le32 num_bt_kills;
     __le32 reserved[2];
 } __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;
 } __packed;
 
 struct statistics_rx_bt {
     struct statistics_rx_phy ofdm;
     struct statistics_rx_phy cck;
     struct statistics_rx_non_phy_bt general;
     struct statistics_rx_ht_phy ofdm_ht;
 } __packed;
 
 /**
  * struct statistics_tx_power - current tx power
  *
  * @ant_a: current tx power on chain a in 1/2 dB step
  * @ant_b: current tx power on chain b in 1/2 dB step
  * @ant_c: current tx power on chain c in 1/2 dB step
  */
 struct statistics_tx_power {
     u8 ant_a;
     u8 ant_b;
     u8 ant_c;
     u8 reserved;
 } __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;
 } __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;
     /*
      * "tx_power" are optional parameters provided by uCode,
      * 6000 series is the only device provide the information,
      * Those are reserved fields for all the other devices
      */
     struct statistics_tx_power tx_power;
     __le32 reserved1;
 } __packed;
 
 
 struct statistics_div {
     __le32 tx_on_a;
     __le32 tx_on_b;
     __le32 exec_time;
     __le32 probe_time;
     __le32 reserved1;
     __le32 reserved2;
 } __packed;
 
 struct statistics_general_common {
     __le32 temperature;   /* radio temperature */
     __le32 temperature_m; /* radio voltage */
     struct statistics_dbg dbg;
     __le32 sleep_time;
     __le32 slots_out;
     __le32 slots_idle;
     __le32 ttl_timestamp;
     struct statistics_div div;
     __le32 rx_enable_counter;
     /*
      * num_of_sos_states:
      *  count the number of times we have to re-tune
      *  in order to get out of bad PHY status
      */
     __le32 num_of_sos_states;
 } __packed;
 
 struct statistics_bt_activity {
     /* Tx statistics */
     __le32 hi_priority_tx_req_cnt;
     __le32 hi_priority_tx_denied_cnt;
     __le32 lo_priority_tx_req_cnt;
     __le32 lo_priority_tx_denied_cnt;
     /* Rx statistics */
     __le32 hi_priority_rx_req_cnt;
     __le32 hi_priority_rx_denied_cnt;
     __le32 lo_priority_rx_req_cnt;
     __le32 lo_priority_rx_denied_cnt;
 } __packed;
 
 struct statistics_general {
     struct statistics_general_common common;
     __le32 reserved2;
     __le32 reserved3;
 } __packed;
 
 struct statistics_general_bt {
     struct statistics_general_common common;
     struct statistics_bt_activity activity;
     __le32 reserved2;
     __le32 reserved3;
 } __packed;
 
 #define UCODE_STATISTICS_CLEAR_MSK      (0x1 << 0)
 #define UCODE_STATISTICS_FREQUENCY_MSK      (0x1 << 1)
 #define UCODE_STATISTICS_NARROW_BAND_MSK    (0x1 << 2)
 
 /*
  * REPLY_STATISTICS_CMD = 0x9c,
  * all devices 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 cpu_to_le32(0x1) /* see above */
 #define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */
 struct iwl_statistics_cmd {
     __le32 configuration_flags; /* IWL_STATS_CONF_* */
 } __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         cpu_to_le32(0x2)
 #define STATISTICS_REPLY_FLG_HT40_MODE_MSK        cpu_to_le32(0x8)
 
 struct iwl_notif_statistics {
     __le32 flag;
     struct statistics_rx rx;
     struct statistics_tx tx;
     struct statistics_general general;
 } __packed;
 
 struct iwl_bt_notif_statistics {
     __le32 flag;
     struct statistics_rx_bt rx;
     struct statistics_tx tx;
     struct statistics_general_bt general;
 } __packed;
 
 /*
  * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
  *
  * uCode send MISSED_BEACONS_NOTIFICATION to driver when detect beacon missed
  * in regardless of how many missed beacons, which mean when driver receive the
  * notification, inside the command, it can find all the beacons information
  * which include number of total missed beacons, number of consecutive missed
  * beacons, number of beacons received and number of beacons expected to
  * receive.
  *
  * If uCode detected consecutive_missed_beacons > 5, it will reset the radio
  * in order to bring the radio/PHY back to working state; which has no relation
  * to when driver will perform sensitivity calibration.
  *
  * Driver should set it own missed_beacon_threshold to decide when to perform
  * sensitivity calibration based on number of consecutive missed beacons in
  * order to improve overall performance, especially in noisy environment.
  *
  */
 
 #define IWL_MISSED_BEACON_THRESHOLD_MIN (1)
 #define IWL_MISSED_BEACON_THRESHOLD_DEF (5)
 #define IWL_MISSED_BEACON_THRESHOLD_MAX IWL_MISSED_BEACON_THRESHOLD_DEF
 
 struct iwl_missed_beacon_notif {
     __le32 consecutive_missed_beacons;
     __le32 total_missed_becons;
     __le32 num_expected_beacons;
     __le32 num_recvd_beacons;
 } __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".
  *
  */
 
 /*
  * 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)
 
 /*
  * Additional table entries in enhance SENSITIVITY_CMD
  */
 #define HD_INA_NON_SQUARE_DET_OFDM_INDEX        (11)
 #define HD_INA_NON_SQUARE_DET_CCK_INDEX         (12)
 #define HD_CORR_11_INSTEAD_OF_CORR_9_EN_INDEX       (13)
 #define HD_OFDM_NON_SQUARE_DET_SLOPE_MRC_INDEX      (14)
 #define HD_OFDM_NON_SQUARE_DET_INTERCEPT_MRC_INDEX  (15)
 #define HD_OFDM_NON_SQUARE_DET_SLOPE_INDEX      (16)
 #define HD_OFDM_NON_SQUARE_DET_INTERCEPT_INDEX      (17)
 #define HD_CCK_NON_SQUARE_DET_SLOPE_MRC_INDEX       (18)
 #define HD_CCK_NON_SQUARE_DET_INTERCEPT_MRC_INDEX   (19)
 #define HD_CCK_NON_SQUARE_DET_SLOPE_INDEX       (20)
 #define HD_CCK_NON_SQUARE_DET_INTERCEPT_INDEX       (21)
 #define HD_RESERVED                 (22)
 
 /* number of entries for enhanced tbl */
 #define ENHANCE_HD_TABLE_SIZE  (23)
 
 /* number of additional entries for enhanced tbl */
 #define ENHANCE_HD_TABLE_ENTRIES  (ENHANCE_HD_TABLE_SIZE - HD_TABLE_SIZE)
 
 #define HD_INA_NON_SQUARE_DET_OFDM_DATA_V1      cpu_to_le16(0)
 #define HD_INA_NON_SQUARE_DET_CCK_DATA_V1       cpu_to_le16(0)
 #define HD_CORR_11_INSTEAD_OF_CORR_9_EN_DATA_V1     cpu_to_le16(0)
 #define HD_OFDM_NON_SQUARE_DET_SLOPE_MRC_DATA_V1    cpu_to_le16(668)
 #define HD_OFDM_NON_SQUARE_DET_INTERCEPT_MRC_DATA_V1    cpu_to_le16(4)
 #define HD_OFDM_NON_SQUARE_DET_SLOPE_DATA_V1        cpu_to_le16(486)
 #define HD_OFDM_NON_SQUARE_DET_INTERCEPT_DATA_V1    cpu_to_le16(37)
 #define HD_CCK_NON_SQUARE_DET_SLOPE_MRC_DATA_V1     cpu_to_le16(853)
 #define HD_CCK_NON_SQUARE_DET_INTERCEPT_MRC_DATA_V1 cpu_to_le16(4)
 #define HD_CCK_NON_SQUARE_DET_SLOPE_DATA_V1     cpu_to_le16(476)
 #define HD_CCK_NON_SQUARE_DET_INTERCEPT_DATA_V1     cpu_to_le16(99)
 
 #define HD_INA_NON_SQUARE_DET_OFDM_DATA_V2      cpu_to_le16(1)
 #define HD_INA_NON_SQUARE_DET_CCK_DATA_V2       cpu_to_le16(1)
 #define HD_CORR_11_INSTEAD_OF_CORR_9_EN_DATA_V2     cpu_to_le16(1)
 #define HD_OFDM_NON_SQUARE_DET_SLOPE_MRC_DATA_V2    cpu_to_le16(600)
 #define HD_OFDM_NON_SQUARE_DET_INTERCEPT_MRC_DATA_V2    cpu_to_le16(40)
 #define HD_OFDM_NON_SQUARE_DET_SLOPE_DATA_V2        cpu_to_le16(486)
 #define HD_OFDM_NON_SQUARE_DET_INTERCEPT_DATA_V2    cpu_to_le16(45)
 #define HD_CCK_NON_SQUARE_DET_SLOPE_MRC_DATA_V2     cpu_to_le16(853)
 #define HD_CCK_NON_SQUARE_DET_INTERCEPT_MRC_DATA_V2 cpu_to_le16(60)
 #define HD_CCK_NON_SQUARE_DET_SLOPE_DATA_V2     cpu_to_le16(476)
 #define HD_CCK_NON_SQUARE_DET_INTERCEPT_DATA_V2     cpu_to_le16(99)
 
 
 /* Control field in struct iwl_sensitivity_cmd */
 #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE   cpu_to_le16(0)
 #define SENSITIVITY_CMD_CONTROL_WORK_TABLE  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 */
 } __packed;
 
 /*
  *
  */
 struct iwl_enhance_sensitivity_cmd {
     __le16 control;         /* always use "1" */
     __le16 enhance_table[ENHANCE_HD_TABLE_SIZE];    /* use HD_* as index */
 } __packed;
 
 
 /**
  * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
  *
  * This command sets the relative gains of agn device'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
  */
 
 /* Phy calibration command for series */
 enum {
     IWL_PHY_CALIBRATE_DC_CMD        = 8,
     IWL_PHY_CALIBRATE_LO_CMD        = 9,
     IWL_PHY_CALIBRATE_TX_IQ_CMD     = 11,
     IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD   = 15,
     IWL_PHY_CALIBRATE_BASE_BAND_CMD     = 16,
     IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD    = 17,
     IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD   = 18,
 };
 
 /* This enum defines the bitmap of various calibrations to enable in both
  * init ucode and runtime ucode through CALIBRATION_CFG_CMD.
  */
 enum iwl_ucode_calib_cfg {
     IWL_CALIB_CFG_RX_BB_IDX         = BIT(0),
     IWL_CALIB_CFG_DC_IDX            = BIT(1),
     IWL_CALIB_CFG_LO_IDX            = BIT(2),
     IWL_CALIB_CFG_TX_IQ_IDX         = BIT(3),
     IWL_CALIB_CFG_RX_IQ_IDX         = BIT(4),
     IWL_CALIB_CFG_NOISE_IDX         = BIT(5),
     IWL_CALIB_CFG_CRYSTAL_IDX       = BIT(6),
     IWL_CALIB_CFG_TEMPERATURE_IDX       = BIT(7),
     IWL_CALIB_CFG_PAPD_IDX          = BIT(8),
     IWL_CALIB_CFG_SENSITIVITY_IDX       = BIT(9),
     IWL_CALIB_CFG_TX_PWR_IDX        = BIT(10),
 };
 
 #define IWL_CALIB_INIT_CFG_ALL  cpu_to_le32(IWL_CALIB_CFG_RX_BB_IDX |   \
                     IWL_CALIB_CFG_DC_IDX |      \
                     IWL_CALIB_CFG_LO_IDX |      \
                     IWL_CALIB_CFG_TX_IQ_IDX |   \
                     IWL_CALIB_CFG_RX_IQ_IDX |   \
                     IWL_CALIB_CFG_CRYSTAL_IDX)
 
 #define IWL_CALIB_RT_CFG_ALL    cpu_to_le32(IWL_CALIB_CFG_RX_BB_IDX |   \
                     IWL_CALIB_CFG_DC_IDX |      \
                     IWL_CALIB_CFG_LO_IDX |      \
                     IWL_CALIB_CFG_TX_IQ_IDX |   \
                     IWL_CALIB_CFG_RX_IQ_IDX |   \
                     IWL_CALIB_CFG_TEMPERATURE_IDX | \
                     IWL_CALIB_CFG_PAPD_IDX |    \
                     IWL_CALIB_CFG_TX_PWR_IDX |  \
                     IWL_CALIB_CFG_CRYSTAL_IDX)
 
 #define IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK   cpu_to_le32(BIT(0))
 
 struct iwl_calib_cfg_elmnt_s {
     __le32 is_enable;
     __le32 start;
     __le32 send_res;
     __le32 apply_res;
     __le32 reserved;
 } __packed;
 
 struct iwl_calib_cfg_status_s {
     struct iwl_calib_cfg_elmnt_s once;
     struct iwl_calib_cfg_elmnt_s perd;
     __le32 flags;
 } __packed;
 
 struct iwl_calib_cfg_cmd {
     struct iwl_calib_cfg_status_s ucd_calib_cfg;
     struct iwl_calib_cfg_status_s drv_calib_cfg;
     __le32 reserved1;
 } __packed;
 
 struct iwl_calib_hdr {
     u8 op_code;
     u8 first_group;
     u8 groups_num;
     u8 data_valid;
 } __packed;
 
 struct iwl_calib_cmd {
     struct iwl_calib_hdr hdr;
     u8 data[];
 } __packed;
 
 struct iwl_calib_xtal_freq_cmd {
     struct iwl_calib_hdr hdr;
     u8 cap_pin1;
     u8 cap_pin2;
     u8 pad[2];
 } __packed;
 
 #define DEFAULT_RADIO_SENSOR_OFFSET    cpu_to_le16(2700)
 struct iwl_calib_temperature_offset_cmd {
     struct iwl_calib_hdr hdr;
     __le16 radio_sensor_offset;
     __le16 reserved;
 } __packed;
 
 struct iwl_calib_temperature_offset_v2_cmd {
     struct iwl_calib_hdr hdr;
     __le16 radio_sensor_offset_high;
     __le16 radio_sensor_offset_low;
     __le16 burntVoltageRef;
     __le16 reserved;
 } __packed;
 
 /* IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */
 struct iwl_calib_chain_noise_reset_cmd {
     struct iwl_calib_hdr hdr;
     u8 data[];
 };
 
 /* IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD */
 struct iwl_calib_chain_noise_gain_cmd {
     struct iwl_calib_hdr hdr;
     u8 delta_gain_1;
     u8 delta_gain_2;
     u8 pad[2];
 } __packed;
 
 /******************************************************************************
  * (12)
  * Miscellaneous Commands:
  *
  *****************************************************************************/
 
 /*
  * LEDs Command & Response
  * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
  *
  * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
  * this command turns it on or off, or sets up a periodic blinking cycle.
  */
 struct iwl_led_cmd {
     __le32 interval;    /* "interval" in uSec */
     u8 id;          /* 1: Activity, 2: Link, 3: Tech */
     u8 off;         /* # intervals off while blinking;
                  * "0", with >0 "on" value, turns LED on */
     u8 on;          /* # intervals on while blinking;
                  * "0", regardless of "off", turns LED off */
     u8 reserved;
 } __packed;
 
 /*
  * station priority table entries
  * also used as potential "events" value for both
  * COEX_MEDIUM_NOTIFICATION and COEX_EVENT_CMD
  */
 
 /*
  * COEX events entry flag masks
  * RP - Requested Priority
  * WP - Win Medium Priority: priority assigned when the contention has been won
  */
 #define COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG        (0x1)
 #define COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG        (0x2)
 #define COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG  (0x4)
 
 #define COEX_CU_UNASSOC_IDLE_RP               4
 #define COEX_CU_UNASSOC_MANUAL_SCAN_RP        4
 #define COEX_CU_UNASSOC_AUTO_SCAN_RP          4
 #define COEX_CU_CALIBRATION_RP                4
 #define COEX_CU_PERIODIC_CALIBRATION_RP       4
 #define COEX_CU_CONNECTION_ESTAB_RP           4
 #define COEX_CU_ASSOCIATED_IDLE_RP            4
 #define COEX_CU_ASSOC_MANUAL_SCAN_RP          4
 #define COEX_CU_ASSOC_AUTO_SCAN_RP            4
 #define COEX_CU_ASSOC_ACTIVE_LEVEL_RP         4
 #define COEX_CU_RF_ON_RP                      6
 #define COEX_CU_RF_OFF_RP                     4
 #define COEX_CU_STAND_ALONE_DEBUG_RP          6
 #define COEX_CU_IPAN_ASSOC_LEVEL_RP           4
 #define COEX_CU_RSRVD1_RP                     4
 #define COEX_CU_RSRVD2_RP                     4
 
 #define COEX_CU_UNASSOC_IDLE_WP               3
 #define COEX_CU_UNASSOC_MANUAL_SCAN_WP        3
 #define COEX_CU_UNASSOC_AUTO_SCAN_WP          3
 #define COEX_CU_CALIBRATION_WP                3
 #define COEX_CU_PERIODIC_CALIBRATION_WP       3
 #define COEX_CU_CONNECTION_ESTAB_WP           3
 #define COEX_CU_ASSOCIATED_IDLE_WP            3
 #define COEX_CU_ASSOC_MANUAL_SCAN_WP          3
 #define COEX_CU_ASSOC_AUTO_SCAN_WP            3
 #define COEX_CU_ASSOC_ACTIVE_LEVEL_WP         3
 #define COEX_CU_RF_ON_WP                      3
 #define COEX_CU_RF_OFF_WP                     3
 #define COEX_CU_STAND_ALONE_DEBUG_WP          6
 #define COEX_CU_IPAN_ASSOC_LEVEL_WP           3
 #define COEX_CU_RSRVD1_WP                     3
 #define COEX_CU_RSRVD2_WP                     3
 
 #define COEX_UNASSOC_IDLE_FLAGS                     0
 #define COEX_UNASSOC_MANUAL_SCAN_FLAGS      \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
     COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
 #define COEX_UNASSOC_AUTO_SCAN_FLAGS        \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
     COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
 #define COEX_CALIBRATION_FLAGS          \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
     COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
 #define COEX_PERIODIC_CALIBRATION_FLAGS             0
 /*
  * COEX_CONNECTION_ESTAB:
  * we need DELAY_MEDIUM_FREE_NTFY to let WiMAX disconnect from network.
  */
 #define COEX_CONNECTION_ESTAB_FLAGS     \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
     COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG |    \
     COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG)
 #define COEX_ASSOCIATED_IDLE_FLAGS                  0
 #define COEX_ASSOC_MANUAL_SCAN_FLAGS        \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
     COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
 #define COEX_ASSOC_AUTO_SCAN_FLAGS      \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
      COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
 #define COEX_ASSOC_ACTIVE_LEVEL_FLAGS               0
 #define COEX_RF_ON_FLAGS                            0
 #define COEX_RF_OFF_FLAGS                           0
 #define COEX_STAND_ALONE_DEBUG_FLAGS        \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
      COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG)
 #define COEX_IPAN_ASSOC_LEVEL_FLAGS     \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
      COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG |   \
      COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG)
 #define COEX_RSRVD1_FLAGS                           0
 #define COEX_RSRVD2_FLAGS                           0
 /*
  * COEX_CU_RF_ON is the event wrapping all radio ownership.
  * We need DELAY_MEDIUM_FREE_NTFY to let WiMAX disconnect from network.
  */
 #define COEX_CU_RF_ON_FLAGS         \
     (COEX_EVT_FLAG_MEDIUM_FREE_NTFY_FLG |   \
      COEX_EVT_FLAG_MEDIUM_ACTV_NTFY_FLG |   \
      COEX_EVT_FLAG_DELAY_MEDIUM_FREE_NTFY_FLG)
 
 
 enum {
     /* un-association part */
     COEX_UNASSOC_IDLE       = 0,
     COEX_UNASSOC_MANUAL_SCAN    = 1,
     COEX_UNASSOC_AUTO_SCAN      = 2,
     /* calibration */
     COEX_CALIBRATION        = 3,
     COEX_PERIODIC_CALIBRATION   = 4,
     /* connection */
     COEX_CONNECTION_ESTAB       = 5,
     /* association part */
     COEX_ASSOCIATED_IDLE        = 6,
     COEX_ASSOC_MANUAL_SCAN      = 7,
     COEX_ASSOC_AUTO_SCAN        = 8,
     COEX_ASSOC_ACTIVE_LEVEL     = 9,
     /* RF ON/OFF */
     COEX_RF_ON          = 10,
     COEX_RF_OFF         = 11,
     COEX_STAND_ALONE_DEBUG      = 12,
     /* IPAN */
     COEX_IPAN_ASSOC_LEVEL       = 13,
     /* reserved */
     COEX_RSRVD1         = 14,
     COEX_RSRVD2         = 15,
     COEX_NUM_OF_EVENTS      = 16
 };
 
 /*
  * Coexistence WIFI/WIMAX  Command
  * COEX_PRIORITY_TABLE_CMD = 0x5a
  *
  */
 struct iwl_wimax_coex_event_entry {
     u8 request_prio;
     u8 win_medium_prio;
     u8 reserved;
     u8 flags;
 } __packed;
 
 /* COEX flag masks */
 
 /* Station table is valid */
 #define COEX_FLAGS_STA_TABLE_VALID_MSK      (0x1)
 /* UnMask wake up src at unassociated sleep */
 #define COEX_FLAGS_UNASSOC_WA_UNMASK_MSK    (0x4)
 /* UnMask wake up src at associated sleep */
 #define COEX_FLAGS_ASSOC_WA_UNMASK_MSK      (0x8)
 /* Enable CoEx feature. */
 #define COEX_FLAGS_COEX_ENABLE_MSK          (0x80)
 
 struct iwl_wimax_coex_cmd {
     u8 flags;
     u8 reserved[3];
     struct iwl_wimax_coex_event_entry sta_prio[COEX_NUM_OF_EVENTS];
 } __packed;
 
 /*
  * Coexistence MEDIUM NOTIFICATION
  * COEX_MEDIUM_NOTIFICATION = 0x5b
  *
  * notification from uCode to host to indicate medium changes
  *
  */
 /*
  * status field
  * bit 0 - 2: medium status
  * bit 3: medium change indication
  * bit 4 - 31: reserved
  */
 /* status option values, (0 - 2 bits) */
 #define COEX_MEDIUM_BUSY    (0x0) /* radio belongs to WiMAX */
 #define COEX_MEDIUM_ACTIVE  (0x1) /* radio belongs to WiFi */
 #define COEX_MEDIUM_PRE_RELEASE (0x2) /* received radio release */
 #define COEX_MEDIUM_MSK     (0x7)
 
 /* send notification status (1 bit) */
 #define COEX_MEDIUM_CHANGED (0x8)
 #define COEX_MEDIUM_CHANGED_MSK (0x8)
 #define COEX_MEDIUM_SHIFT   (3)
 
 struct iwl_coex_medium_notification {
     __le32 status;
     __le32 events;
 } __packed;
 
 /*
  * Coexistence EVENT  Command
  * COEX_EVENT_CMD = 0x5c
  *
  * send from host to uCode for coex event request.
  */
 /* flags options */
 #define COEX_EVENT_REQUEST_MSK  (0x1)
 
 struct iwl_coex_event_cmd {
     u8 flags;
     u8 event;
     __le16 reserved;
 } __packed;
 
 struct iwl_coex_event_resp {
     __le32 status;
 } __packed;
 
 
 /******************************************************************************
  * Bluetooth Coexistence commands
  *
  *****************************************************************************/
 
 /*
  * BT Status notification
  * REPLY_BT_COEX_PROFILE_NOTIF = 0xce
  */
 enum iwl_bt_coex_profile_traffic_load {
     IWL_BT_COEX_TRAFFIC_LOAD_NONE =     0,
     IWL_BT_COEX_TRAFFIC_LOAD_LOW =      1,
     IWL_BT_COEX_TRAFFIC_LOAD_HIGH =     2,
     IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS =   3,
 /*
  * There are no more even though below is a u8, the
  * indication from the BT device only has two bits.
  */
 };
 
 #define BT_SESSION_ACTIVITY_1_UART_MSG      0x1
 #define BT_SESSION_ACTIVITY_2_UART_MSG      0x2
 
 /* BT UART message - Share Part (BT -> WiFi) */
 #define BT_UART_MSG_FRAME1MSGTYPE_POS       (0)
 #define BT_UART_MSG_FRAME1MSGTYPE_MSK       \
         (0x7 << BT_UART_MSG_FRAME1MSGTYPE_POS)
 #define BT_UART_MSG_FRAME1SSN_POS       (3)
 #define BT_UART_MSG_FRAME1SSN_MSK       \
         (0x3 << BT_UART_MSG_FRAME1SSN_POS)
 #define BT_UART_MSG_FRAME1UPDATEREQ_POS     (5)
 #define BT_UART_MSG_FRAME1UPDATEREQ_MSK     \
         (0x1 << BT_UART_MSG_FRAME1UPDATEREQ_POS)
 #define BT_UART_MSG_FRAME1RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME1RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME1RESERVED_POS)
 
 #define BT_UART_MSG_FRAME2OPENCONNECTIONS_POS   (0)
 #define BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK   \
         (0x3 << BT_UART_MSG_FRAME2OPENCONNECTIONS_POS)
 #define BT_UART_MSG_FRAME2TRAFFICLOAD_POS   (2)
 #define BT_UART_MSG_FRAME2TRAFFICLOAD_MSK   \
         (0x3 << BT_UART_MSG_FRAME2TRAFFICLOAD_POS)
 #define BT_UART_MSG_FRAME2CHLSEQN_POS       (4)
 #define BT_UART_MSG_FRAME2CHLSEQN_MSK       \
         (0x1 << BT_UART_MSG_FRAME2CHLSEQN_POS)
 #define BT_UART_MSG_FRAME2INBAND_POS        (5)
 #define BT_UART_MSG_FRAME2INBAND_MSK        \
         (0x1 << BT_UART_MSG_FRAME2INBAND_POS)
 #define BT_UART_MSG_FRAME2RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME2RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME2RESERVED_POS)
 
 #define BT_UART_MSG_FRAME3SCOESCO_POS       (0)
 #define BT_UART_MSG_FRAME3SCOESCO_MSK       \
         (0x1 << BT_UART_MSG_FRAME3SCOESCO_POS)
 #define BT_UART_MSG_FRAME3SNIFF_POS     (1)
 #define BT_UART_MSG_FRAME3SNIFF_MSK     \
         (0x1 << BT_UART_MSG_FRAME3SNIFF_POS)
 #define BT_UART_MSG_FRAME3A2DP_POS      (2)
 #define BT_UART_MSG_FRAME3A2DP_MSK      \
         (0x1 << BT_UART_MSG_FRAME3A2DP_POS)
 #define BT_UART_MSG_FRAME3ACL_POS       (3)
 #define BT_UART_MSG_FRAME3ACL_MSK       \
         (0x1 << BT_UART_MSG_FRAME3ACL_POS)
 #define BT_UART_MSG_FRAME3MASTER_POS        (4)
 #define BT_UART_MSG_FRAME3MASTER_MSK        \
         (0x1 << BT_UART_MSG_FRAME3MASTER_POS)
 #define BT_UART_MSG_FRAME3OBEX_POS      (5)
 #define BT_UART_MSG_FRAME3OBEX_MSK      \
         (0x1 << BT_UART_MSG_FRAME3OBEX_POS)
 #define BT_UART_MSG_FRAME3RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME3RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME3RESERVED_POS)
 
 #define BT_UART_MSG_FRAME4IDLEDURATION_POS  (0)
 #define BT_UART_MSG_FRAME4IDLEDURATION_MSK  \
         (0x3F << BT_UART_MSG_FRAME4IDLEDURATION_POS)
 #define BT_UART_MSG_FRAME4RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME4RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME4RESERVED_POS)
 
 #define BT_UART_MSG_FRAME5TXACTIVITY_POS    (0)
 #define BT_UART_MSG_FRAME5TXACTIVITY_MSK    \
         (0x3 << BT_UART_MSG_FRAME5TXACTIVITY_POS)
 #define BT_UART_MSG_FRAME5RXACTIVITY_POS    (2)
 #define BT_UART_MSG_FRAME5RXACTIVITY_MSK    \
         (0x3 << BT_UART_MSG_FRAME5RXACTIVITY_POS)
 #define BT_UART_MSG_FRAME5ESCORETRANSMIT_POS    (4)
 #define BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK    \
         (0x3 << BT_UART_MSG_FRAME5ESCORETRANSMIT_POS)
 #define BT_UART_MSG_FRAME5RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME5RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME5RESERVED_POS)
 
 #define BT_UART_MSG_FRAME6SNIFFINTERVAL_POS (0)
 #define BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK \
         (0x1F << BT_UART_MSG_FRAME6SNIFFINTERVAL_POS)
 #define BT_UART_MSG_FRAME6DISCOVERABLE_POS  (5)
 #define BT_UART_MSG_FRAME6DISCOVERABLE_MSK  \
         (0x1 << BT_UART_MSG_FRAME6DISCOVERABLE_POS)
 #define BT_UART_MSG_FRAME6RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME6RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME6RESERVED_POS)
 
 #define BT_UART_MSG_FRAME7SNIFFACTIVITY_POS (0)
 #define BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK \
         (0x7 << BT_UART_MSG_FRAME7SNIFFACTIVITY_POS)
 #define BT_UART_MSG_FRAME7PAGE_POS      (3)
 #define BT_UART_MSG_FRAME7PAGE_MSK      \
         (0x1 << BT_UART_MSG_FRAME7PAGE_POS)
 #define BT_UART_MSG_FRAME7INQUIRY_POS       (4)
 #define BT_UART_MSG_FRAME7INQUIRY_MSK       \
         (0x1 << BT_UART_MSG_FRAME7INQUIRY_POS)
 #define BT_UART_MSG_FRAME7CONNECTABLE_POS   (5)
 #define BT_UART_MSG_FRAME7CONNECTABLE_MSK   \
         (0x1 << BT_UART_MSG_FRAME7CONNECTABLE_POS)
 #define BT_UART_MSG_FRAME7RESERVED_POS      (6)
 #define BT_UART_MSG_FRAME7RESERVED_MSK      \
         (0x3 << BT_UART_MSG_FRAME7RESERVED_POS)
 
 /* BT Session Activity 2 UART message (BT -> WiFi) */
 #define BT_UART_MSG_2_FRAME1RESERVED1_POS   (5)
 #define BT_UART_MSG_2_FRAME1RESERVED1_MSK   \
         (0x1<<BT_UART_MSG_2_FRAME1RESERVED1_POS)
 #define BT_UART_MSG_2_FRAME1RESERVED2_POS   (6)
 #define BT_UART_MSG_2_FRAME1RESERVED2_MSK   \
         (0x3<<BT_UART_MSG_2_FRAME1RESERVED2_POS)
 
 #define BT_UART_MSG_2_FRAME2AGGTRAFFICLOAD_POS  (0)
 #define BT_UART_MSG_2_FRAME2AGGTRAFFICLOAD_MSK  \
         (0x3F<<BT_UART_MSG_2_FRAME2AGGTRAFFICLOAD_POS)
 #define BT_UART_MSG_2_FRAME2RESERVED_POS    (6)
 #define BT_UART_MSG_2_FRAME2RESERVED_MSK    \
         (0x3<<BT_UART_MSG_2_FRAME2RESERVED_POS)
 
 #define BT_UART_MSG_2_FRAME3BRLASTTXPOWER_POS   (0)
 #define BT_UART_MSG_2_FRAME3BRLASTTXPOWER_MSK   \
         (0xF<<BT_UART_MSG_2_FRAME3BRLASTTXPOWER_POS)
 #define BT_UART_MSG_2_FRAME3INQPAGESRMODE_POS   (4)
 #define BT_UART_MSG_2_FRAME3INQPAGESRMODE_MSK   \
         (0x1<<BT_UART_MSG_2_FRAME3INQPAGESRMODE_POS)
 #define BT_UART_MSG_2_FRAME3LEMASTER_POS    (5)
 #define BT_UART_MSG_2_FRAME3LEMASTER_MSK    \
         (0x1<<BT_UART_MSG_2_FRAME3LEMASTER_POS)
 #define BT_UART_MSG_2_FRAME3RESERVED_POS    (6)
 #define BT_UART_MSG_2_FRAME3RESERVED_MSK    \
         (0x3<<BT_UART_MSG_2_FRAME3RESERVED_POS)
 
 #define BT_UART_MSG_2_FRAME4LELASTTXPOWER_POS   (0)
 #define BT_UART_MSG_2_FRAME4LELASTTXPOWER_MSK   \
         (0xF<<BT_UART_MSG_2_FRAME4LELASTTXPOWER_POS)
 #define BT_UART_MSG_2_FRAME4NUMLECONN_POS   (4)
 #define BT_UART_MSG_2_FRAME4NUMLECONN_MSK   \
         (0x3<<BT_UART_MSG_2_FRAME4NUMLECONN_POS)
 #define BT_UART_MSG_2_FRAME4RESERVED_POS    (6)
 #define BT_UART_MSG_2_FRAME4RESERVED_MSK    \
         (0x3<<BT_UART_MSG_2_FRAME4RESERVED_POS)
 
 #define BT_UART_MSG_2_FRAME5BTMINRSSI_POS   (0)
 #define BT_UART_MSG_2_FRAME5BTMINRSSI_MSK   \
         (0xF<<BT_UART_MSG_2_FRAME5BTMINRSSI_POS)
 #define BT_UART_MSG_2_FRAME5LESCANINITMODE_POS  (4)
 #define BT_UART_MSG_2_FRAME5LESCANINITMODE_MSK  \
         (0x1<<BT_UART_MSG_2_FRAME5LESCANINITMODE_POS)
 #define BT_UART_MSG_2_FRAME5LEADVERMODE_POS (5)
 #define BT_UART_MSG_2_FRAME5LEADVERMODE_MSK \
         (0x1<<BT_UART_MSG_2_FRAME5LEADVERMODE_POS)
 #define BT_UART_MSG_2_FRAME5RESERVED_POS    (6)
 #define BT_UART_MSG_2_FRAME5RESERVED_MSK    \
         (0x3<<BT_UART_MSG_2_FRAME5RESERVED_POS)
 
 #define BT_UART_MSG_2_FRAME6LECONNINTERVAL_POS  (0)
 #define BT_UART_MSG_2_FRAME6LECONNINTERVAL_MSK  \
         (0x1F<<BT_UART_MSG_2_FRAME6LECONNINTERVAL_POS)
 #define BT_UART_MSG_2_FRAME6RFU_POS     (5)
 #define BT_UART_MSG_2_FRAME6RFU_MSK     \
         (0x1<<BT_UART_MSG_2_FRAME6RFU_POS)
 #define BT_UART_MSG_2_FRAME6RESERVED_POS    (6)
 #define BT_UART_MSG_2_FRAME6RESERVED_MSK    \
         (0x3<<BT_UART_MSG_2_FRAME6RESERVED_POS)
 
 #define BT_UART_MSG_2_FRAME7LECONNSLAVELAT_POS  (0)
 #define BT_UART_MSG_2_FRAME7LECONNSLAVELAT_MSK  \
         (0x7<<BT_UART_MSG_2_FRAME7LECONNSLAVELAT_POS)
 #define BT_UART_MSG_2_FRAME7LEPROFILE1_POS  (3)
 #define BT_UART_MSG_2_FRAME7LEPROFILE1_MSK  \
         (0x1<<BT_UART_MSG_2_FRAME7LEPROFILE1_POS)
 #define BT_UART_MSG_2_FRAME7LEPROFILE2_POS  (4)
 #define BT_UART_MSG_2_FRAME7LEPROFILE2_MSK  \
         (0x1<<BT_UART_MSG_2_FRAME7LEPROFILE2_POS)
 #define BT_UART_MSG_2_FRAME7LEPROFILEOTHER_POS  (5)
 #define BT_UART_MSG_2_FRAME7LEPROFILEOTHER_MSK  \
         (0x1<<BT_UART_MSG_2_FRAME7LEPROFILEOTHER_POS)
 #define BT_UART_MSG_2_FRAME7RESERVED_POS    (6)
 #define BT_UART_MSG_2_FRAME7RESERVED_MSK    \
         (0x3<<BT_UART_MSG_2_FRAME7RESERVED_POS)
 
 
 #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62)
 #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD    (-65)
 
 struct iwl_bt_uart_msg {
     u8 header;
     u8 frame1;
     u8 frame2;
     u8 frame3;
     u8 frame4;
     u8 frame5;
     u8 frame6;
     u8 frame7;
 } __packed;
 
 struct iwl_bt_coex_profile_notif {
     struct iwl_bt_uart_msg last_bt_uart_msg;
     u8 bt_status; /* 0 - off, 1 - on */
     u8 bt_traffic_load; /* 0 .. 3? */
     u8 bt_ci_compliance; /* 0 - not complied, 1 - complied */
     u8 reserved;
 } __packed;
 
 #define IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS 0
 #define IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_MSK 0x1
 #define IWL_BT_COEX_PRIO_TBL_PRIO_POS       1
 #define IWL_BT_COEX_PRIO_TBL_PRIO_MASK      0x0e
 #define IWL_BT_COEX_PRIO_TBL_RESERVED_POS   4
 #define IWL_BT_COEX_PRIO_TBL_RESERVED_MASK  0xf0
 #define IWL_BT_COEX_PRIO_TBL_PRIO_SHIFT     1
 
 /*
  * BT Coexistence Priority table
  * REPLY_BT_COEX_PRIO_TABLE = 0xcc
  */
 enum bt_coex_prio_table_events {
     BT_COEX_PRIO_TBL_EVT_INIT_CALIB1 = 0,
     BT_COEX_PRIO_TBL_EVT_INIT_CALIB2 = 1,
     BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1 = 2,
     BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2 = 3, /* DC calib */
     BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1 = 4,
     BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2 = 5,
     BT_COEX_PRIO_TBL_EVT_DTIM = 6,
     BT_COEX_PRIO_TBL_EVT_SCAN52 = 7,
     BT_COEX_PRIO_TBL_EVT_SCAN24 = 8,
     BT_COEX_PRIO_TBL_EVT_RESERVED0 = 9,
     BT_COEX_PRIO_TBL_EVT_RESERVED1 = 10,
     BT_COEX_PRIO_TBL_EVT_RESERVED2 = 11,
     BT_COEX_PRIO_TBL_EVT_RESERVED3 = 12,
     BT_COEX_PRIO_TBL_EVT_RESERVED4 = 13,
     BT_COEX_PRIO_TBL_EVT_RESERVED5 = 14,
     BT_COEX_PRIO_TBL_EVT_RESERVED6 = 15,
     /* BT_COEX_PRIO_TBL_EVT_MAX should always be last */
     BT_COEX_PRIO_TBL_EVT_MAX,
 };
 
 enum bt_coex_prio_table_priorities {
     BT_COEX_PRIO_TBL_DISABLED = 0,
     BT_COEX_PRIO_TBL_PRIO_LOW = 1,
     BT_COEX_PRIO_TBL_PRIO_HIGH = 2,
     BT_COEX_PRIO_TBL_PRIO_BYPASS = 3,
     BT_COEX_PRIO_TBL_PRIO_COEX_OFF = 4,
     BT_COEX_PRIO_TBL_PRIO_COEX_ON = 5,
     BT_COEX_PRIO_TBL_PRIO_RSRVD1 = 6,
     BT_COEX_PRIO_TBL_PRIO_RSRVD2 = 7,
     BT_COEX_PRIO_TBL_MAX,
 };
 
 struct iwl_bt_coex_prio_table_cmd {
     u8 prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX];
 } __packed;
 
 #define IWL_BT_COEX_ENV_CLOSE   0
 #define IWL_BT_COEX_ENV_OPEN    1
 /*
  * BT Protection Envelope
  * REPLY_BT_COEX_PROT_ENV = 0xcd
  */
 struct iwl_bt_coex_prot_env_cmd {
     u8 action; /* 0 = closed, 1 = open */
     u8 type; /* 0 .. 15 */
     u8 reserved[2];
 } __packed;
 
 /*
  * REPLY_D3_CONFIG
  */
 enum iwlagn_d3_wakeup_filters {
     IWLAGN_D3_WAKEUP_RFKILL     = BIT(0),
     IWLAGN_D3_WAKEUP_SYSASSERT  = BIT(1),
 };
 
 struct iwlagn_d3_config_cmd {
     __le32 min_sleep_time;
     __le32 wakeup_flags;
 } __packed;
 
 /*
  * REPLY_WOWLAN_PATTERNS
  */
 #define IWLAGN_WOWLAN_MIN_PATTERN_LEN   16
 #define IWLAGN_WOWLAN_MAX_PATTERN_LEN   128
 
 struct iwlagn_wowlan_pattern {
     u8 mask[IWLAGN_WOWLAN_MAX_PATTERN_LEN / 8];
     u8 pattern[IWLAGN_WOWLAN_MAX_PATTERN_LEN];
     u8 mask_size;
     u8 pattern_size;
     __le16 reserved;
 } __packed;
 
 #define IWLAGN_WOWLAN_MAX_PATTERNS  20
 
 struct iwlagn_wowlan_patterns_cmd {
     __le32 n_patterns;
     struct iwlagn_wowlan_pattern patterns[];
 } __packed;
 
 /*
  * REPLY_WOWLAN_WAKEUP_FILTER
  */
 enum iwlagn_wowlan_wakeup_filters {
     IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET   = BIT(0),
     IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH  = BIT(1),
     IWLAGN_WOWLAN_WAKEUP_BEACON_MISS    = BIT(2),
     IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE    = BIT(3),
     IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL = BIT(4),
     IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ  = BIT(5),
     IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE = BIT(6),
     IWLAGN_WOWLAN_WAKEUP_ALWAYS     = BIT(7),
     IWLAGN_WOWLAN_WAKEUP_ENABLE_NET_DETECT  = BIT(8),
 };
 
 struct iwlagn_wowlan_wakeup_filter_cmd {
     __le32 enabled;
     __le16 non_qos_seq;
     __le16 reserved;
     __le16 qos_seq[8];
 };
 
 /*
  * REPLY_WOWLAN_TSC_RSC_PARAMS
  */
 #define IWLAGN_NUM_RSC  16
 
 struct tkip_sc {
     __le16 iv16;
     __le16 pad;
     __le32 iv32;
 } __packed;
 
 struct iwlagn_tkip_rsc_tsc {
     struct tkip_sc unicast_rsc[IWLAGN_NUM_RSC];
     struct tkip_sc multicast_rsc[IWLAGN_NUM_RSC];
     struct tkip_sc tsc;
 } __packed;
 
 struct aes_sc {
     __le64 pn;
 } __packed;
 
 struct iwlagn_aes_rsc_tsc {
     struct aes_sc unicast_rsc[IWLAGN_NUM_RSC];
     struct aes_sc multicast_rsc[IWLAGN_NUM_RSC];
     struct aes_sc tsc;
 } __packed;
 
 union iwlagn_all_tsc_rsc {
     struct iwlagn_tkip_rsc_tsc tkip;
     struct iwlagn_aes_rsc_tsc aes;
 };
 
 struct iwlagn_wowlan_rsc_tsc_params_cmd {
     union iwlagn_all_tsc_rsc all_tsc_rsc;
 } __packed;
 
 /*
  * REPLY_WOWLAN_TKIP_PARAMS
  */
 #define IWLAGN_MIC_KEY_SIZE 8
 #define IWLAGN_P1K_SIZE     5
 struct iwlagn_mic_keys {
     u8 tx[IWLAGN_MIC_KEY_SIZE];
     u8 rx_unicast[IWLAGN_MIC_KEY_SIZE];
     u8 rx_mcast[IWLAGN_MIC_KEY_SIZE];
 } __packed;
 
 struct iwlagn_p1k_cache {
     __le16 p1k[IWLAGN_P1K_SIZE];
 } __packed;
 
 #define IWLAGN_NUM_RX_P1K_CACHE 2
 
 struct iwlagn_wowlan_tkip_params_cmd {
     struct iwlagn_mic_keys mic_keys;
     struct iwlagn_p1k_cache tx;
     struct iwlagn_p1k_cache rx_uni[IWLAGN_NUM_RX_P1K_CACHE];
     struct iwlagn_p1k_cache rx_multi[IWLAGN_NUM_RX_P1K_CACHE];
 } __packed;
 
 /*
  * REPLY_WOWLAN_KEK_KCK_MATERIAL
  */
 
 #define IWLAGN_KCK_MAX_SIZE 32
 #define IWLAGN_KEK_MAX_SIZE 32
 
 struct iwlagn_wowlan_kek_kck_material_cmd {
     u8  kck[IWLAGN_KCK_MAX_SIZE];
     u8  kek[IWLAGN_KEK_MAX_SIZE];
     __le16  kck_len;
     __le16  kek_len;
     __le64  replay_ctr;
 } __packed;
 
 #define RF_KILL_INDICATOR_FOR_WOWLAN    0x87
 
 /*
  * REPLY_WOWLAN_GET_STATUS = 0xe5
  */
 struct iwlagn_wowlan_status {
     __le64 replay_ctr;
     __le32 rekey_status;
     __le32 wakeup_reason;
     u8 pattern_number;
     u8 reserved1;
     __le16 qos_seq_ctr[8];
     __le16 non_qos_seq_ctr;
     __le16 reserved2;
     union iwlagn_all_tsc_rsc tsc_rsc;
     __le16 reserved3;
 } __packed;
 
 /*
  * REPLY_WIPAN_PARAMS = 0xb2 (Commands and Notification)
  */
 
 /*
  * Minimum slot time in TU
  */
 #define IWL_MIN_SLOT_TIME   20
 
 /**
  * struct iwl_wipan_slot
  * @width: Time in TU
  * @type:
  *   0 - BSS
  *   1 - PAN
  */
 struct iwl_wipan_slot {
     __le16 width;
     u8 type;
     u8 reserved;
 } __packed;
 
 #define IWL_WIPAN_PARAMS_FLG_LEAVE_CHANNEL_CTS      BIT(1)  /* reserved */
 #define IWL_WIPAN_PARAMS_FLG_LEAVE_CHANNEL_QUIET    BIT(2)  /* reserved */
 #define IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE       BIT(3)  /* reserved */
 #define IWL_WIPAN_PARAMS_FLG_FILTER_BEACON_NOTIF    BIT(4)
 #define IWL_WIPAN_PARAMS_FLG_FULL_SLOTTED_MODE      BIT(5)
 
 /**
  * struct iwl_wipan_params_cmd
  * @flags:
  *   bit0: reserved
  *   bit1: CP leave channel with CTS
  *   bit2: CP leave channel qith Quiet
  *   bit3: slotted mode
  *     1 - work in slotted mode
  *     0 - work in non slotted mode
  *   bit4: filter beacon notification
  *   bit5: full tx slotted mode. if this flag is set,
  *         uCode will perform leaving channel methods in context switch
  *         also when working in same channel mode
  * @num_slots: 1 - 10
  */
 struct iwl_wipan_params_cmd {
     __le16 flags;
     u8 reserved;
     u8 num_slots;
     struct iwl_wipan_slot slots[10];
 } __packed;
 
 /*
  * REPLY_WIPAN_P2P_CHANNEL_SWITCH = 0xb9
  *
  * TODO: Figure out what this is used for,
  *   it can only switch between 2.4 GHz
  *   channels!!
  */
 
 struct iwl_wipan_p2p_channel_switch_cmd {
     __le16 channel;
     __le16 reserved;
 };
 
 /*
  * REPLY_WIPAN_NOA_NOTIFICATION = 0xbc
  *
  * This is used by the device to notify us of the
  * NoA schedule it determined so we can forward it
  * to userspace for inclusion in probe responses.
  *
  * In beacons, the NoA schedule is simply appended
  * to the frame we give the device.
  */
 
 struct iwl_wipan_noa_descriptor {
     u8 count;
     __le32 duration;
     __le32 interval;
     __le32 starttime;
 } __packed;
 
 struct iwl_wipan_noa_attribute {
     u8 id;
     __le16 length;
     u8 index;
     u8 ct_window;
     struct iwl_wipan_noa_descriptor descr0, descr1;
     u8 reserved;
 } __packed;
 
 struct iwl_wipan_noa_notification {
     u32 noa_active;
     struct iwl_wipan_noa_attribute noa_attribute;
 } __packed;
 
 #endif              /* __iwl_commands_h__ */