linux/drivers/net/wireless/intel/iwlegacy/csr.h

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * Contact Information:
 *  Intel Linux Wireless <[email protected]>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/
#ifndef __il_csr_h__
#define __il_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 _il_wr() and _il_rd() family to access these registers;
 * these provide simple PCI bus access, without waking up the MAC.
 * Do not use il_wr() 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 register
 */
#define CSR_BASE

#define CSR_HW_IF_CONFIG_REG
#define CSR_INT_COALESCING
#define CSR_INT
#define CSR_INT_MASK
#define CSR_FH_INT_STATUS
#define CSR_GPIO_IN
#define CSR_RESET
#define CSR_GP_CNTRL

/* 2nd byte of CSR_INT_COALESCING, not accessible via _il_wr()! */
#define CSR_INT_PERIODIC_REG

/*
 * Hardware revision info
 * Bit fields:
 * 31-8:  Reserved
 *  7-4:  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.
 *
 * NOTE:  Revision step affects calculation of CCK txpower for 4965.
 * NOTE:  See also CSR_HW_REV_WA_REG (work-around for bug in 4965).
 */
#define CSR_HW_REV

/*
 * EEPROM memory reads
 *
 * NOTE:  Device must be awake, initialized via apm_ops.init(),
 *        in order to read.
 */
#define CSR_EEPROM_REG
#define CSR_EEPROM_GP

#define CSR_GIO_REG
#define CSR_GP_UCODE_REG
#define CSR_GP_DRIVER_REG

/*
 * UCODE-DRIVER GP (general purpose) mailbox registers.
 * SET/CLR registers set/clear bit(s) if "1" is written.
 */
#define CSR_UCODE_DRV_GP1
#define CSR_UCODE_DRV_GP1_SET
#define CSR_UCODE_DRV_GP1_CLR
#define CSR_UCODE_DRV_GP2

#define CSR_LED_REG
#define CSR_DRAM_INT_TBL_REG

/* GIO Chicken Bits (PCI Express bus link power management) */
#define CSR_GIO_CHICKEN_BITS

/* Analog phase-lock-loop configuration  */
#define CSR_ANA_PLL_CFG

/*
 * CSR Hardware Revision Workaround Register.  Indicates hardware rev;
 * "step" determines CCK backoff for txpower calculation.  Used for 4965 only.
 * 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

#define CSR_DBG_HPET_MEM_REG
#define CSR_DBG_LINK_PWR_MGMT_REG

/* Bits for CSR_HW_IF_CONFIG_REG */
#define CSR49_HW_IF_CONFIG_REG_BIT_4965_R
#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER
#define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI
#define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI

#define CSR39_HW_IF_CONFIG_REG_BIT_3945_MB
#define CSR39_HW_IF_CONFIG_REG_BIT_3945_MM
#define CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC
#define CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE
#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A
#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B

#define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A
#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM
#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
#define CSR_HW_IF_CONFIG_REG_PREPARE

#define CSR_INT_PERIODIC_DIS
#define CSR_INT_PERIODIC_ENA

/* 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
#define CSR_INT_BIT_HW_ERR
#define CSR_INT_BIT_RX_PERIODIC
#define CSR_INT_BIT_FH_TX
#define CSR_INT_BIT_SCD
#define CSR_INT_BIT_SW_ERR
#define CSR_INT_BIT_RF_KILL
#define CSR_INT_BIT_CT_KILL
#define CSR_INT_BIT_SW_RX
#define CSR_INT_BIT_WAKEUP
#define CSR_INT_BIT_ALIVE

#define CSR_INI_SET_MASK

/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
#define CSR_FH_INT_BIT_ERR
#define CSR_FH_INT_BIT_HI_PRIOR
#define CSR39_FH_INT_BIT_RX_CHNL2
#define CSR_FH_INT_BIT_RX_CHNL1
#define CSR_FH_INT_BIT_RX_CHNL0
#define CSR39_FH_INT_BIT_TX_CHNL6
#define CSR_FH_INT_BIT_TX_CHNL1
#define CSR_FH_INT_BIT_TX_CHNL0

#define CSR39_FH_INT_RX_MASK

#define CSR39_FH_INT_TX_MASK

#define CSR49_FH_INT_RX_MASK

#define CSR49_FH_INT_TX_MASK

/* GPIO */
#define CSR_GPIO_IN_BIT_AUX_POWER
#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC
#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC

/* RESET */
#define CSR_RESET_REG_FLAG_NEVO_RESET
#define CSR_RESET_REG_FLAG_FORCE_NMI
#define CSR_RESET_REG_FLAG_SW_RESET
#define CSR_RESET_REG_FLAG_MASTER_DISABLED
#define CSR_RESET_REG_FLAG_STOP_MASTER
#define CSR_RESET_LINK_PWR_MGMT_DISABLED

/*
 * 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
 *   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 4965 or 3945 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 "0" until host sets
 *                INIT_DONE
 */
#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE
#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP

#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN

#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE
#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE
#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW

/* EEPROM REG */
#define CSR_EEPROM_REG_READ_VALID_MSK
#define CSR_EEPROM_REG_BIT_CMD
#define CSR_EEPROM_REG_MSK_ADDR
#define CSR_EEPROM_REG_MSK_DATA

/* EEPROM GP */
#define CSR_EEPROM_GP_VALID_MSK
#define CSR_EEPROM_GP_IF_OWNER_MSK
#define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K
#define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K

/* GP REG */
#define CSR_GP_REG_POWER_SAVE_STATUS_MSK
#define CSR_GP_REG_NO_POWER_SAVE
#define CSR_GP_REG_MAC_POWER_SAVE
#define CSR_GP_REG_PHY_POWER_SAVE
#define CSR_GP_REG_POWER_SAVE_ERROR

/* CSR GIO */
#define CSR_GIO_REG_VAL_L0S_ENABLED

/*
 * 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:  3945/4965 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
#define CSR_UCODE_SW_BIT_RFKILL
#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT

/* GIO Chicken Bits (PCI Express bus link power management) */
#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX
#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER

/* LED */
#define CSR_LED_BSM_CTRL_MSK
#define CSR_LED_REG_TRUN_ON
#define CSR_LED_REG_TRUN_OFF

/* ANA_PLL */
#define CSR39_ANA_PLL_CFG_VAL

/* HPET MEM debug */
#define CSR_DBG_HPET_MEM_REG_VAL

/* DRAM INT TBL */
#define CSR_DRAM_INT_TBL_ENABLE
#define CSR_DRAM_INIT_TBL_WRAP_CHECK

/*
 * 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 il_wr()/il_rd() 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 _il_wr()/_il_rd() family to access these registers;
 * these provide only simple PCI bus access, without waking up the MAC.
 */
#define HBUS_BASE

/*
 * 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
#define HBUS_TARG_MEM_WADDR
#define HBUS_TARG_MEM_WDAT
#define HBUS_TARG_MEM_RDAT

/* Mailbox C, used as workaround alternative to CSR_UCODE_DRV_GP1 mailbox */
#define HBUS_TARG_MBX_C
#define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED

/*
 * 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
#define HBUS_TARG_PRPH_RADDR
#define HBUS_TARG_PRPH_WDAT
#define HBUS_TARG_PRPH_RDAT

/*
 * Per-Tx-queue write pointer (idx, really!)
 * Indicates idx to next TFD that driver will fill (1 past latest filled).
 * Bit usage:
 *  0-7:  queue write idx
 * 11-8:  queue selector
 */
#define HBUS_TARG_WRPTR

#endif /* !__il_csr_h__ */