FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/iwlwifi/iwl-csr.h

     /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
     /*
      * Copyright (C) 2005-2014, 2018-2022 Intel Corporation
      * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
      * Copyright (C) 2016 Intel Deutschland GmbH
      */
     #ifndef __iwl_csr_h__
     #define __iwl_csr_h__
     /*
     * CSR (control and status registers)
     *
     * CSR registers are mapped directly into PCI bus space, and are accessible
     * whenever platform supplies power to device, even when device is in
     * low power states due to driver-invoked device resets
     * (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
     *
     * Use iwl_write32() and iwl_read32() family to access these registers;
     * these provide simple PCI bus access, without waking up the MAC.
     * Do not use iwl_write_direct32() family for these registers;
     * no need to "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ.
     * The MAC (uCode processor, etc.) does not need to be powered up for accessing
     * the CSR registers.
     *
     * NOTE:  Device does need to be awake in order to read this memory
     *        via CSR_EEPROM and CSR_OTP registers
     */
    #define CSR_BASE    (0x000)
    
    #define CSR_HW_IF_CONFIG_REG    (CSR_BASE+0x000) /* hardware interface config */
    #define CSR_INT_COALESCING      (CSR_BASE+0x004) /* accum ints, 32-usec units */
    #define CSR_INT                 (CSR_BASE+0x008) /* host interrupt status/ack */
    #define CSR_INT_MASK            (CSR_BASE+0x00c) /* host interrupt enable */
    #define CSR_FH_INT_STATUS       (CSR_BASE+0x010) /* busmaster int status/ack*/
    #define CSR_GPIO_IN             (CSR_BASE+0x018) /* read external chip pins */
    #define CSR_RESET               (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
    #define CSR_GP_CNTRL            (CSR_BASE+0x024)
    #define CSR_FUNC_SCRATCH        (CSR_BASE+0x02c) /* Scratch register - used for FW dbg */
    
    /* 2nd byte of CSR_INT_COALESCING, not accessible via iwl_write32()! */
    #define CSR_INT_PERIODIC_REG    (CSR_BASE+0x005)
    
    /*
     * Hardware revision info
     * Bit fields:
     * 31-16:  Reserved
     *  15-4:  Type of device:  see CSR_HW_REV_TYPE_xxx definitions
     *  3-2:  Revision step:  0 = A, 1 = B, 2 = C, 3 = D
     *  1-0:  "Dash" (-) value, as in A-1, etc.
     */
    #define CSR_HW_REV              (CSR_BASE+0x028)
    
    /*
     * RF ID revision info
     * Bit fields:
     * 31:24: Reserved (set to 0x0)
     * 23:12: Type
     * 11:8:  Step (A - 0x0, B - 0x1, etc)
     * 7:4:   Dash
     * 3:0:   Flavor
     */
    #define CSR_HW_RF_ID            (CSR_BASE+0x09c)
    
    /*
     * EEPROM and OTP (one-time-programmable) memory reads
     *
     * NOTE:  Device must be awake, initialized via apm_ops.init(),
     *        in order to read.
     */
    #define CSR_EEPROM_REG          (CSR_BASE+0x02c)
    #define CSR_EEPROM_GP           (CSR_BASE+0x030)
    #define CSR_OTP_GP_REG          (CSR_BASE+0x034)
    
    #define CSR_GIO_REG             (CSR_BASE+0x03C)
    #define CSR_GP_UCODE_REG        (CSR_BASE+0x048)
    #define CSR_GP_DRIVER_REG       (CSR_BASE+0x050)
    
    /*
     * UCODE-DRIVER GP (general purpose) mailbox registers.
     * SET/CLR registers set/clear bit(s) if "1" is written.
     */
    #define CSR_UCODE_DRV_GP1       (CSR_BASE+0x054)
    #define CSR_UCODE_DRV_GP1_SET   (CSR_BASE+0x058)
    #define CSR_UCODE_DRV_GP1_CLR   (CSR_BASE+0x05c)
    #define CSR_UCODE_DRV_GP2       (CSR_BASE+0x060)
    
    #define CSR_MBOX_SET_REG        (CSR_BASE + 0x88)
    
    #define CSR_LED_REG             (CSR_BASE+0x094)
    #define CSR_DRAM_INT_TBL_REG    (CSR_BASE+0x0A0)
    #define CSR_MAC_SHADOW_REG_CTRL         (CSR_BASE + 0x0A8) /* 6000 and up */
    #define CSR_MAC_SHADOW_REG_CTRL_RX_WAKE BIT(20)
    #define CSR_MAC_SHADOW_REG_CTL2         (CSR_BASE + 0x0AC)
    #define CSR_MAC_SHADOW_REG_CTL2_RX_WAKE 0xFFFF
    
    /* LTR control (since IWL_DEVICE_FAMILY_22000) */
    #define CSR_LTR_LONG_VAL_AD                     (CSR_BASE + 0x0D4)
    #define CSR_LTR_LONG_VAL_AD_NO_SNOOP_REQ        0x80000000
    #define CSR_LTR_LONG_VAL_AD_NO_SNOOP_SCALE      0x1c000000
    #define CSR_LTR_LONG_VAL_AD_NO_SNOOP_VAL        0x03ff0000
   #define CSR_LTR_LONG_VAL_AD_SNOOP_REQ           0x00008000
   #define CSR_LTR_LONG_VAL_AD_SNOOP_SCALE         0x00001c00
   #define CSR_LTR_LONG_VAL_AD_SNOOP_VAL           0x000003ff
   #define CSR_LTR_LONG_VAL_AD_SCALE_USEC          2
   
   /* GIO Chicken Bits (PCI Express bus link power management) */
   #define CSR_GIO_CHICKEN_BITS    (CSR_BASE+0x100)
   
   #define CSR_IPC_SLEEP_CONTROL   (CSR_BASE + 0x114)
   #define CSR_IPC_SLEEP_CONTROL_SUSPEND   0x3
   #define CSR_IPC_SLEEP_CONTROL_RESUME    0
   
   /* Doorbell - since Bz
    * connected to UREG_DOORBELL_TO_ISR6 (lower 16 bits only)
    */
   #define CSR_DOORBELL_VECTOR     (CSR_BASE + 0x130)
   
   /* host chicken bits */
   #define CSR_HOST_CHICKEN        (CSR_BASE + 0x204)
   #define CSR_HOST_CHICKEN_PM_IDLE_SRC_DIS_SB_PME BIT(19)
   
   /* Analog phase-lock-loop configuration  */
   #define CSR_ANA_PLL_CFG         (CSR_BASE+0x20c)
   
   /*
    * CSR HW resources monitor registers
    */
   #define CSR_MONITOR_CFG_REG             (CSR_BASE+0x214)
   #define CSR_MONITOR_STATUS_REG          (CSR_BASE+0x228)
   #define CSR_MONITOR_XTAL_RESOURCES      (0x00000010)
   
   /*
    * CSR Hardware Revision Workaround Register.  Indicates hardware rev;
    * "step" determines CCK backoff for txpower calculation.
    * See also CSR_HW_REV register.
    * Bit fields:
    *  3-2:  0 = A, 1 = B, 2 = C, 3 = D step
    *  1-0:  "Dash" (-) value, as in C-1, etc.
    */
   #define CSR_HW_REV_WA_REG               (CSR_BASE+0x22C)
   
   #define CSR_DBG_HPET_MEM_REG            (CSR_BASE+0x240)
   #define CSR_DBG_LINK_PWR_MGMT_REG       (CSR_BASE+0x250)
   
   /*
    * Scratch register initial configuration - this is set on init, and read
    * during a error FW error.
    */
   #define CSR_FUNC_SCRATCH_INIT_VALUE             (0x01010101)
   
   /* Bits for CSR_HW_IF_CONFIG_REG */
   #define CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH  (0x0000000F)
   #define CSR_HW_IF_CONFIG_REG_BIT_MONITOR_SRAM   (0x00000080)
   #define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER      (0x000000C0)
   #define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI         (0x00000100)
   #define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI       (0x00000200)
   #define CSR_HW_IF_CONFIG_REG_D3_DEBUG           (0x00000200)
   #define CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE       (0x00000C00)
   #define CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH       (0x00003000)
   #define CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP       (0x0000C000)
   
   #define CSR_HW_IF_CONFIG_REG_POS_MAC_DASH       (0)
   #define CSR_HW_IF_CONFIG_REG_POS_MAC_STEP       (2)
   #define CSR_HW_IF_CONFIG_REG_POS_BOARD_VER      (6)
   #define CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE       (10)
   #define CSR_HW_IF_CONFIG_REG_POS_PHY_DASH       (12)
   #define CSR_HW_IF_CONFIG_REG_POS_PHY_STEP       (14)
   
   #define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A   (0x00080000)
   #define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
   #define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY      (0x00400000) /* PCI_OWN_SEM */
   #define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */
   #define CSR_HW_IF_CONFIG_REG_PREPARE              (0x08000000) /* WAKE_ME */
   #define CSR_HW_IF_CONFIG_REG_ENABLE_PME           (0x10000000)
   #define CSR_HW_IF_CONFIG_REG_PERSIST_MODE         (0x40000000) /* PERSISTENCE */
   
   #define CSR_MBOX_SET_REG_OS_ALIVE               BIT(5)
   
   #define CSR_INT_PERIODIC_DIS                    (0x00) /* disable periodic int*/
   #define CSR_INT_PERIODIC_ENA                    (0xFF) /* 255*32 usec ~ 8 msec*/
   
   /* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
    * acknowledged (reset) by host writing "1" to flagged bits. */
   #define CSR_INT_BIT_FH_RX        (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
   #define CSR_INT_BIT_HW_ERR       (1 << 29) /* DMA hardware error FH_INT[31] */
   #define CSR_INT_BIT_RX_PERIODIC  (1 << 28) /* Rx periodic */
   #define CSR_INT_BIT_FH_TX        (1 << 27) /* Tx DMA FH_INT[1:0] */
   #define CSR_INT_BIT_SCD          (1 << 26) /* TXQ pointer advanced */
   #define CSR_INT_BIT_SW_ERR       (1 << 25) /* uCode error */
   #define CSR_INT_BIT_RF_KILL      (1 << 7)  /* HW RFKILL switch GP_CNTRL[27] toggled */
   #define CSR_INT_BIT_CT_KILL      (1 << 6)  /* Critical temp (chip too hot) rfkill */
   #define CSR_INT_BIT_SW_RX        (1 << 3)  /* Rx, command responses */
   #define CSR_INT_BIT_WAKEUP       (1 << 1)  /* NIC controller waking up (pwr mgmt) */
   #define CSR_INT_BIT_ALIVE        (1 << 0)  /* uCode interrupts once it initializes */
   
   #define CSR_INI_SET_MASK        (CSR_INT_BIT_FH_RX   | \
                                    CSR_INT_BIT_HW_ERR  | \
                                    CSR_INT_BIT_FH_TX   | \
                                    CSR_INT_BIT_SW_ERR  | \
                                    CSR_INT_BIT_RF_KILL | \
                                    CSR_INT_BIT_SW_RX   | \
                                    CSR_INT_BIT_WAKEUP  | \
                                    CSR_INT_BIT_ALIVE   | \
                                    CSR_INT_BIT_RX_PERIODIC)
   
   /* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
   #define CSR_FH_INT_BIT_ERR       (1 << 31) /* Error */
   #define CSR_FH_INT_BIT_HI_PRIOR  (1 << 30) /* High priority Rx, bypass coalescing */
   #define CSR_FH_INT_BIT_RX_CHNL1  (1 << 17) /* Rx channel 1 */
   #define CSR_FH_INT_BIT_RX_CHNL0  (1 << 16) /* Rx channel 0 */
   #define CSR_FH_INT_BIT_TX_CHNL1  (1 << 1)  /* Tx channel 1 */
   #define CSR_FH_INT_BIT_TX_CHNL0  (1 << 0)  /* Tx channel 0 */
   
   #define CSR_FH_INT_RX_MASK      (CSR_FH_INT_BIT_HI_PRIOR | \
                                   CSR_FH_INT_BIT_RX_CHNL1 | \
                                   CSR_FH_INT_BIT_RX_CHNL0)
   
   #define CSR_FH_INT_TX_MASK      (CSR_FH_INT_BIT_TX_CHNL1 | \
                                   CSR_FH_INT_BIT_TX_CHNL0)
   
   /* GPIO */
   #define CSR_GPIO_IN_BIT_AUX_POWER                   (0x00000200)
   #define CSR_GPIO_IN_VAL_VAUX_PWR_SRC                (0x00000000)
   #define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC               (0x00000200)
   
   /* RESET */
   #define CSR_RESET_REG_FLAG_NEVO_RESET                (0x00000001)
   #define CSR_RESET_REG_FLAG_FORCE_NMI                 (0x00000002)
   #define CSR_RESET_REG_FLAG_SW_RESET                  (0x00000080)
   #define CSR_RESET_REG_FLAG_MASTER_DISABLED           (0x00000100)
   #define CSR_RESET_REG_FLAG_STOP_MASTER               (0x00000200)
   #define CSR_RESET_LINK_PWR_MGMT_DISABLED             (0x80000000)
   
   /*
    * GP (general purpose) CONTROL REGISTER
    * Bit fields:
    *    27:  HW_RF_KILL_SW
    *         Indicates state of (platform's) hardware RF-Kill switch
    * 26-24:  POWER_SAVE_TYPE
    *         Indicates current power-saving mode:
    *         000 -- No power saving
    *         001 -- MAC power-down
    *         010 -- PHY (radio) power-down
    *         011 -- Error
    *    10:  XTAL ON request
    *   9-6:  SYS_CONFIG
    *         Indicates current system configuration, reflecting pins on chip
    *         as forced high/low by device circuit board.
    *     4:  GOING_TO_SLEEP
    *         Indicates MAC is entering a power-saving sleep power-down.
    *         Not a good time to access device-internal resources.
    *     3:  MAC_ACCESS_REQ
    *         Host sets this to request and maintain MAC wakeup, to allow host
    *         access to device-internal resources.  Host must wait for
    *         MAC_CLOCK_READY (and !GOING_TO_SLEEP) before accessing non-CSR
    *         device registers.
    *     2:  INIT_DONE
    *         Host sets this to put device into fully operational D0 power mode.
    *         Host resets this after SW_RESET to put device into low power mode.
    *     0:  MAC_CLOCK_READY
    *         Indicates MAC (ucode processor, etc.) is powered up and can run.
    *         Internal resources are accessible.
    *         NOTE:  This does not indicate that the processor is actually running.
    *         NOTE:  This does not indicate that device has completed
    *                init or post-power-down restore of internal SRAM memory.
    *                Use CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP as indication that
    *                SRAM is restored and uCode is in normal operation mode.
    *                Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
    *                do not need to save/restore it.
    *         NOTE:  After device reset, this bit remains "" until host sets
    *                INIT_DONE
    */
   #define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY        (0x00000001)
   #define CSR_GP_CNTRL_REG_FLAG_INIT_DONE              (0x00000004)
   #define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ         (0x00000008)
   #define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP         (0x00000010)
   #define CSR_GP_CNTRL_REG_FLAG_XTAL_ON                (0x00000400)
   
   #define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN           (0x00000001)
   
   #define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE         (0x07000000)
   #define CSR_GP_CNTRL_REG_FLAG_RFKILL_WAKE_L1A_EN     (0x04000000)
   #define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW          (0x08000000)
   
   /* From Bz we use these instead during init/reset flow */
   #define CSR_GP_CNTRL_REG_FLAG_MAC_INIT                  BIT(6)
   #define CSR_GP_CNTRL_REG_FLAG_ROM_START                 BIT(7)
   #define CSR_GP_CNTRL_REG_FLAG_MAC_STATUS                BIT(20)
   #define CSR_GP_CNTRL_REG_FLAG_BZ_MAC_ACCESS_REQ         BIT(21)
   #define CSR_GP_CNTRL_REG_FLAG_BUS_MASTER_DISABLE_STATUS BIT(28)
   #define CSR_GP_CNTRL_REG_FLAG_BUS_MASTER_DISABLE_REQ    BIT(29)
   #define CSR_GP_CNTRL_REG_FLAG_SW_RESET                  BIT(31)
   
   /* HW REV */
   #define CSR_HW_REV_STEP_DASH(_val)     ((_val) & CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH)
   #define CSR_HW_REV_TYPE(_val)          (((_val) & 0x000FFF0) >> 4)
   
   /* HW RFID */
   #define CSR_HW_RFID_FLAVOR(_val)       (((_val) & 0x000000F) >> 0)
   #define CSR_HW_RFID_DASH(_val)         (((_val) & 0x00000F0) >> 4)
   #define CSR_HW_RFID_STEP(_val)         (((_val) & 0x0000F00) >> 8)
   #define CSR_HW_RFID_TYPE(_val)         (((_val) & 0x0FFF000) >> 12)
   #define CSR_HW_RFID_IS_CDB(_val)       (((_val) & 0x10000000) >> 28)
   #define CSR_HW_RFID_IS_JACKET(_val)    (((_val) & 0x20000000) >> 29)
   
   /**
    *  hw_rev values
    */
   enum {
           SILICON_A_STEP = 0,
           SILICON_B_STEP,
           SILICON_C_STEP,
           SILICON_Z_STEP = 0xf,
   };
   
   
   #define CSR_HW_REV_TYPE_MSK             (0x000FFF0)
   #define CSR_HW_REV_TYPE_5300            (0x0000020)
   #define CSR_HW_REV_TYPE_5350            (0x0000030)
   #define CSR_HW_REV_TYPE_5100            (0x0000050)
   #define CSR_HW_REV_TYPE_5150            (0x0000040)
   #define CSR_HW_REV_TYPE_1000            (0x0000060)
   #define CSR_HW_REV_TYPE_6x00            (0x0000070)
   #define CSR_HW_REV_TYPE_6x50            (0x0000080)
   #define CSR_HW_REV_TYPE_6150            (0x0000084)
   #define CSR_HW_REV_TYPE_6x05            (0x00000B0)
   #define CSR_HW_REV_TYPE_6x30            CSR_HW_REV_TYPE_6x05
   #define CSR_HW_REV_TYPE_6x35            CSR_HW_REV_TYPE_6x05
   #define CSR_HW_REV_TYPE_2x30            (0x00000C0)
   #define CSR_HW_REV_TYPE_2x00            (0x0000100)
   #define CSR_HW_REV_TYPE_105             (0x0000110)
   #define CSR_HW_REV_TYPE_135             (0x0000120)
   #define CSR_HW_REV_TYPE_3160            (0x0000164)
   #define CSR_HW_REV_TYPE_7265D           (0x0000210)
   #define CSR_HW_REV_TYPE_NONE            (0x00001F0)
   #define CSR_HW_REV_TYPE_QNJ             (0x0000360)
   #define CSR_HW_REV_TYPE_QNJ_B0          (0x0000361)
   #define CSR_HW_REV_TYPE_QU_B0           (0x0000331)
   #define CSR_HW_REV_TYPE_QU_C0           (0x0000332)
   #define CSR_HW_REV_TYPE_QUZ             (0x0000351)
   #define CSR_HW_REV_TYPE_HR_CDB          (0x0000340)
   #define CSR_HW_REV_TYPE_SO              (0x0000370)
   #define CSR_HW_REV_TYPE_TY              (0x0000420)
   
   /* RF_ID value */
   #define CSR_HW_RF_ID_TYPE_JF            (0x00105100)
   #define CSR_HW_RF_ID_TYPE_HR            (0x0010A000)
   #define CSR_HW_RF_ID_TYPE_HR1           (0x0010c100)
   #define CSR_HW_RF_ID_TYPE_HRCDB         (0x00109F00)
   #define CSR_HW_RF_ID_TYPE_GF            (0x0010D000)
   #define CSR_HW_RF_ID_TYPE_GF4           (0x0010E000)
   
   /* HW_RF CHIP STEP  */
   #define CSR_HW_RF_STEP(_val) (((_val) >> 8) & 0xF)
   
   /* EEPROM REG */
   #define CSR_EEPROM_REG_READ_VALID_MSK   (0x00000001)
   #define CSR_EEPROM_REG_BIT_CMD          (0x00000002)
   #define CSR_EEPROM_REG_MSK_ADDR         (0x0000FFFC)
   #define CSR_EEPROM_REG_MSK_DATA         (0xFFFF0000)
   
   /* EEPROM GP */
   #define CSR_EEPROM_GP_VALID_MSK         (0x00000007) /* signature */
   #define CSR_EEPROM_GP_IF_OWNER_MSK      (0x00000180)
   #define CSR_EEPROM_GP_BAD_SIGNATURE_BOTH_EEP_AND_OTP    (0x00000000)
   #define CSR_EEPROM_GP_BAD_SIG_EEP_GOOD_SIG_OTP          (0x00000001)
   #define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K         (0x00000002)
   #define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K         (0x00000004)
   
   /* One-time-programmable memory general purpose reg */
   #define CSR_OTP_GP_REG_DEVICE_SELECT    (0x00010000) /* 0 - EEPROM, 1 - OTP */
   #define CSR_OTP_GP_REG_OTP_ACCESS_MODE  (0x00020000) /* 0 - absolute, 1 - relative */
   #define CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK          (0x00100000) /* bit 20 */
   #define CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK        (0x00200000) /* bit 21 */
   
   /* GP REG */
   #define CSR_GP_REG_POWER_SAVE_STATUS_MSK            (0x03000000) /* bit 24/25 */
   #define CSR_GP_REG_NO_POWER_SAVE            (0x00000000)
   #define CSR_GP_REG_MAC_POWER_SAVE           (0x01000000)
   #define CSR_GP_REG_PHY_POWER_SAVE           (0x02000000)
   #define CSR_GP_REG_POWER_SAVE_ERROR         (0x03000000)
   
   
   /* CSR GIO */
   #define CSR_GIO_REG_VAL_L0S_DISABLED    (0x00000002)
   
   /*
    * UCODE-DRIVER GP (general purpose) mailbox register 1
    * Host driver and uCode write and/or read this register to communicate with
    * each other.
    * Bit fields:
    *     4:  UCODE_DISABLE
    *         Host sets this to request permanent halt of uCode, same as
    *         sending CARD_STATE command with "halt" bit set.
    *     3:  CT_KILL_EXIT
    *         Host sets this to request exit from CT_KILL state, i.e. host thinks
    *         device temperature is low enough to continue normal operation.
    *     2:  CMD_BLOCKED
    *         Host sets this during RF KILL power-down sequence (HW, SW, CT KILL)
    *         to release uCode to clear all Tx and command queues, enter
    *         unassociated mode, and power down.
    *         NOTE:  Some devices also use HBUS_TARG_MBX_C register for this bit.
    *     1:  SW_BIT_RFKILL
    *         Host sets this when issuing CARD_STATE command to request
    *         device sleep.
    *     0:  MAC_SLEEP
    *         uCode sets this when preparing a power-saving power-down.
    *         uCode resets this when power-up is complete and SRAM is sane.
    *         NOTE:  device saves internal SRAM data to host when powering down,
    *                and must restore this data after powering back up.
    *                MAC_SLEEP is the best indication that restore is complete.
    *                Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
    *                do not need to save/restore it.
    */
   #define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP             (0x00000001)
   #define CSR_UCODE_SW_BIT_RFKILL                     (0x00000002)
   #define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED           (0x00000004)
   #define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT      (0x00000008)
   #define CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE       (0x00000020)
   
   /* GP Driver */
   #define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_MSK         (0x00000003)
   #define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_3x3_HYB     (0x00000000)
   #define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_HYB     (0x00000001)
   #define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA     (0x00000002)
   #define CSR_GP_DRIVER_REG_BIT_CALIB_VERSION6        (0x00000004)
   #define CSR_GP_DRIVER_REG_BIT_6050_1x2              (0x00000008)
   
   #define CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER        (0x00000080)
   
   /* GIO Chicken Bits (PCI Express bus link power management) */
   #define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX  (0x00800000)
   #define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER  (0x20000000)
   
   /* LED */
   #define CSR_LED_BSM_CTRL_MSK (0xFFFFFFDF)
   #define CSR_LED_REG_TURN_ON (0x60)
   #define CSR_LED_REG_TURN_OFF (0x20)
   
   /* ANA_PLL */
   #define CSR50_ANA_PLL_CFG_VAL        (0x00880300)
   
   /* HPET MEM debug */
   #define CSR_DBG_HPET_MEM_REG_VAL        (0xFFFF0000)
   
   /* DRAM INT TABLE */
   #define CSR_DRAM_INT_TBL_ENABLE         (1 << 31)
   #define CSR_DRAM_INIT_TBL_WRITE_POINTER (1 << 28)
   #define CSR_DRAM_INIT_TBL_WRAP_CHECK    (1 << 27)
   
   /*
    * SHR target access (Shared block memory space)
    *
    * Shared internal registers can be accessed directly from PCI bus through SHR
    * arbiter without need for the MAC HW to be powered up. This is possible due to
    * indirect read/write via HEEP_CTRL_WRD_PCIEX_CTRL (0xEC) and
    * HEEP_CTRL_WRD_PCIEX_DATA (0xF4) registers.
    *
    * Use iwl_write32()/iwl_read32() family to access these registers. The MAC HW
    * need not be powered up so no "grab inc access" is required.
    */
   
   /*
    * Registers for accessing shared registers (e.g. SHR_APMG_GP1,
    * SHR_APMG_XTAL_CFG). For example, to read from SHR_APMG_GP1 register (0x1DC),
    * first, write to the control register:
    * HEEP_CTRL_WRD_PCIEX_CTRL[15:0] = 0x1DC (offset of the SHR_APMG_GP1 register)
    * HEEP_CTRL_WRD_PCIEX_CTRL[29:28] = 2 (read access)
    * second, read from the data register HEEP_CTRL_WRD_PCIEX_DATA[31:0].
    *
    * To write the register, first, write to the data register
    * HEEP_CTRL_WRD_PCIEX_DATA[31:0] and then:
    * HEEP_CTRL_WRD_PCIEX_CTRL[15:0] = 0x1DC (offset of the SHR_APMG_GP1 register)
    * HEEP_CTRL_WRD_PCIEX_CTRL[29:28] = 3 (write access)
    */
   #define HEEP_CTRL_WRD_PCIEX_CTRL_REG    (CSR_BASE+0x0ec)
   #define HEEP_CTRL_WRD_PCIEX_DATA_REG    (CSR_BASE+0x0f4)
   
   /*
    * HBUS (Host-side Bus)
    *
    * HBUS registers are mapped directly into PCI bus space, but are used
    * to indirectly access device's internal memory or registers that
    * may be powered-down.
    *
    * Use iwl_write_direct32()/iwl_read_direct32() family for these registers;
    * host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
    * to make sure the MAC (uCode processor, etc.) is powered up for accessing
    * internal resources.
    *
    * Do not use iwl_write32()/iwl_read32() family to access these registers;
    * these provide only simple PCI bus access, without waking up the MAC.
    */
   #define HBUS_BASE       (0x400)
   
   /*
    * Registers for accessing device's internal SRAM memory (e.g. SCD SRAM
    * structures, error log, event log, verifying uCode load).
    * First write to address register, then read from or write to data register
    * to complete the job.  Once the address register is set up, accesses to
    * data registers auto-increment the address by one dword.
    * Bit usage for address registers (read or write):
    *  0-31:  memory address within device
    */
   #define HBUS_TARG_MEM_RADDR     (HBUS_BASE+0x00c)
   #define HBUS_TARG_MEM_WADDR     (HBUS_BASE+0x010)
   #define HBUS_TARG_MEM_WDAT      (HBUS_BASE+0x018)
   #define HBUS_TARG_MEM_RDAT      (HBUS_BASE+0x01c)
   
   /* Mailbox C, used as workaround alternative to CSR_UCODE_DRV_GP1 mailbox */
   #define HBUS_TARG_MBX_C         (HBUS_BASE+0x030)
   #define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED         (0x00000004)
   
   /*
    * Registers for accessing device's internal peripheral registers
    * (e.g. SCD, BSM, etc.).  First write to address register,
    * then read from or write to data register to complete the job.
    * Bit usage for address registers (read or write):
    *  0-15:  register address (offset) within device
    * 24-25:  (# bytes - 1) to read or write (e.g. 3 for dword)
    */
   #define HBUS_TARG_PRPH_WADDR    (HBUS_BASE+0x044)
   #define HBUS_TARG_PRPH_RADDR    (HBUS_BASE+0x048)
   #define HBUS_TARG_PRPH_WDAT     (HBUS_BASE+0x04c)
   #define HBUS_TARG_PRPH_RDAT     (HBUS_BASE+0x050)
   
   /* Used to enable DBGM */
   #define HBUS_TARG_TEST_REG      (HBUS_BASE+0x05c)
   
   /*
    * Per-Tx-queue write pointer (index, really!)
    * Indicates index to next TFD that driver will fill (1 past latest filled).
    * Bit usage:
    *  0-7:  queue write index
    * 11-8:  queue selector
    */
   #define HBUS_TARG_WRPTR         (HBUS_BASE+0x060)
   /* This register is common for Tx and Rx, Rx queues start from 512 */
   #define HBUS_TARG_WRPTR_Q_SHIFT (16)
   #define HBUS_TARG_WRPTR_RX_Q(q) (((q) + 512) << HBUS_TARG_WRPTR_Q_SHIFT)
   
   /**********************************************************
    * CSR values
    **********************************************************/
    /*
    * host interrupt timeout value
    * used with setting interrupt coalescing timer
    * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
    *
    * default interrupt coalescing timer is 64 x 32 = 2048 usecs
    */
   #define IWL_HOST_INT_TIMEOUT_MAX        (0xFF)
   #define IWL_HOST_INT_TIMEOUT_DEF        (0x40)
   #define IWL_HOST_INT_TIMEOUT_MIN        (0x0)
   #define IWL_HOST_INT_OPER_MODE          BIT(31)
   
   /*****************************************************************************
    *                        7000/3000 series SHR DTS addresses                 *
    *****************************************************************************/
   
   /* Diode Results Register Structure: */
   enum dtd_diode_reg {
           DTS_DIODE_REG_DIG_VAL                   = 0x000000FF, /* bits [7:0] */
           DTS_DIODE_REG_VREF_LOW                  = 0x0000FF00, /* bits [15:8] */
           DTS_DIODE_REG_VREF_HIGH                 = 0x00FF0000, /* bits [23:16] */
           DTS_DIODE_REG_VREF_ID                   = 0x03000000, /* bits [25:24] */
           DTS_DIODE_REG_PASS_ONCE                 = 0x80000000, /* bits [31:31] */
           DTS_DIODE_REG_FLAGS_MSK                 = 0xFF000000, /* bits [31:24] */
   /* Those are the masks INSIDE the flags bit-field: */
           DTS_DIODE_REG_FLAGS_VREFS_ID_POS        = 0,
           DTS_DIODE_REG_FLAGS_VREFS_ID            = 0x00000003, /* bits [1:0] */
           DTS_DIODE_REG_FLAGS_PASS_ONCE_POS       = 7,
           DTS_DIODE_REG_FLAGS_PASS_ONCE           = 0x00000080, /* bits [7:7] */
   };
   
   /*****************************************************************************
    *                        MSIX related registers                             *
    *****************************************************************************/
   
   #define CSR_MSIX_BASE                   (0x2000)
   #define CSR_MSIX_FH_INT_CAUSES_AD       (CSR_MSIX_BASE + 0x800)
   #define CSR_MSIX_FH_INT_MASK_AD         (CSR_MSIX_BASE + 0x804)
   #define CSR_MSIX_HW_INT_CAUSES_AD       (CSR_MSIX_BASE + 0x808)
   #define CSR_MSIX_HW_INT_MASK_AD         (CSR_MSIX_BASE + 0x80C)
   #define CSR_MSIX_AUTOMASK_ST_AD         (CSR_MSIX_BASE + 0x810)
   #define CSR_MSIX_RX_IVAR_AD_REG         (CSR_MSIX_BASE + 0x880)
   #define CSR_MSIX_IVAR_AD_REG            (CSR_MSIX_BASE + 0x890)
   #define CSR_MSIX_PENDING_PBA_AD         (CSR_MSIX_BASE + 0x1000)
   #define CSR_MSIX_RX_IVAR(cause)         (CSR_MSIX_RX_IVAR_AD_REG + (cause))
   #define CSR_MSIX_IVAR(cause)            (CSR_MSIX_IVAR_AD_REG + (cause))
   
   #define MSIX_FH_INT_CAUSES_Q(q)         (q)
   
   /*
    * Causes for the FH register interrupts
    */
   enum msix_fh_int_causes {
           MSIX_FH_INT_CAUSES_Q0                   = BIT(0),
           MSIX_FH_INT_CAUSES_Q1                   = BIT(1),
           MSIX_FH_INT_CAUSES_D2S_CH0_NUM          = BIT(16),
           MSIX_FH_INT_CAUSES_D2S_CH1_NUM          = BIT(17),
           MSIX_FH_INT_CAUSES_S2D                  = BIT(19),
           MSIX_FH_INT_CAUSES_FH_ERR               = BIT(21),
   };
   
   /* The low 16 bits are for rx data queue indication */
   #define MSIX_FH_INT_CAUSES_DATA_QUEUE 0xffff
   
   /*
    * Causes for the HW register interrupts
    */
   enum msix_hw_int_causes {
           MSIX_HW_INT_CAUSES_REG_ALIVE            = BIT(0),
           MSIX_HW_INT_CAUSES_REG_WAKEUP           = BIT(1),
           MSIX_HW_INT_CAUSES_REG_IML              = BIT(1),
           MSIX_HW_INT_CAUSES_REG_RESET_DONE       = BIT(2),
           MSIX_HW_INT_CAUSES_REG_SW_ERR_BZ        = BIT(5),
           MSIX_HW_INT_CAUSES_REG_CT_KILL          = BIT(6),
           MSIX_HW_INT_CAUSES_REG_RF_KILL          = BIT(7),
           MSIX_HW_INT_CAUSES_REG_PERIODIC         = BIT(8),
           MSIX_HW_INT_CAUSES_REG_SW_ERR           = BIT(25),
           MSIX_HW_INT_CAUSES_REG_SCD              = BIT(26),
           MSIX_HW_INT_CAUSES_REG_FH_TX            = BIT(27),
           MSIX_HW_INT_CAUSES_REG_HW_ERR           = BIT(29),
           MSIX_HW_INT_CAUSES_REG_HAP              = BIT(30),
   };
   
   #define MSIX_MIN_INTERRUPT_VECTORS              2
   #define MSIX_AUTO_CLEAR_CAUSE                   0
   #define MSIX_NON_AUTO_CLEAR_CAUSE               BIT(7)
   
   /*****************************************************************************
    *                     HW address related registers                          *
    *****************************************************************************/
   
   #define CSR_ADDR_BASE(trans)                    ((trans)->cfg->mac_addr_from_csr)
   #define CSR_MAC_ADDR0_OTP(trans)                (CSR_ADDR_BASE(trans) + 0x00)
   #define CSR_MAC_ADDR1_OTP(trans)                (CSR_ADDR_BASE(trans) + 0x04)
   #define CSR_MAC_ADDR0_STRAP(trans)              (CSR_ADDR_BASE(trans) + 0x08)
   #define CSR_MAC_ADDR1_STRAP(trans)              (CSR_ADDR_BASE(trans) + 0x0c)
   
   #endif /* !__iwl_csr_h__ */

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