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1780221141
Add hardware revision for 6000g2 series of NIC Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
453 lines
19 KiB
C
453 lines
19 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#ifndef __iwl_csr_h__
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#define __iwl_csr_h__
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/*
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* CSR (control and status registers)
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*
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* CSR registers are mapped directly into PCI bus space, and are accessible
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* whenever platform supplies power to device, even when device is in
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* low power states due to driver-invoked device resets
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* (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
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*
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* Use iwl_write32() and iwl_read32() family to access these registers;
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* these provide simple PCI bus access, without waking up the MAC.
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* Do not use iwl_write_direct32() family for these registers;
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* no need to "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ.
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* The MAC (uCode processor, etc.) does not need to be powered up for accessing
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* the CSR registers.
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*
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* NOTE: Device does need to be awake in order to read this memory
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* via CSR_EEPROM and CSR_OTP registers
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*/
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#define CSR_BASE (0x000)
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#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
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#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
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#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */
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#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */
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#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack*/
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#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
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#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
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#define CSR_GP_CNTRL (CSR_BASE+0x024)
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/* 2nd byte of CSR_INT_COALESCING, not accessible via iwl_write32()! */
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#define CSR_INT_PERIODIC_REG (CSR_BASE+0x005)
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/*
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* Hardware revision info
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* Bit fields:
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* 31-8: Reserved
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* 7-4: Type of device: see CSR_HW_REV_TYPE_xxx definitions
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* 3-2: Revision step: 0 = A, 1 = B, 2 = C, 3 = D
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* 1-0: "Dash" (-) value, as in A-1, etc.
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*
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* NOTE: Revision step affects calculation of CCK txpower for 4965.
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* NOTE: See also CSR_HW_REV_WA_REG (work-around for bug in 4965).
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*/
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#define CSR_HW_REV (CSR_BASE+0x028)
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/*
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* EEPROM and OTP (one-time-programmable) memory reads
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*
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* NOTE: Device must be awake, initialized via apm_ops.init(),
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* in order to read.
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*/
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#define CSR_EEPROM_REG (CSR_BASE+0x02c)
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#define CSR_EEPROM_GP (CSR_BASE+0x030)
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#define CSR_OTP_GP_REG (CSR_BASE+0x034)
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#define CSR_GIO_REG (CSR_BASE+0x03C)
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#define CSR_GP_UCODE_REG (CSR_BASE+0x048)
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#define CSR_GP_DRIVER_REG (CSR_BASE+0x050)
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/*
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* UCODE-DRIVER GP (general purpose) mailbox registers.
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* SET/CLR registers set/clear bit(s) if "1" is written.
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*/
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#define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054)
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#define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058)
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#define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c)
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#define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060)
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#define CSR_LED_REG (CSR_BASE+0x094)
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#define CSR_DRAM_INT_TBL_REG (CSR_BASE+0x0A0)
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/* GIO Chicken Bits (PCI Express bus link power management) */
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#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
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/* Analog phase-lock-loop configuration */
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#define CSR_ANA_PLL_CFG (CSR_BASE+0x20c)
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/*
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* CSR Hardware Revision Workaround Register. Indicates hardware rev;
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* "step" determines CCK backoff for txpower calculation. Used for 4965 only.
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* See also CSR_HW_REV register.
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* Bit fields:
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* 3-2: 0 = A, 1 = B, 2 = C, 3 = D step
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* 1-0: "Dash" (-) value, as in C-1, etc.
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*/
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#define CSR_HW_REV_WA_REG (CSR_BASE+0x22C)
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#define CSR_DBG_HPET_MEM_REG (CSR_BASE+0x240)
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#define CSR_DBG_LINK_PWR_MGMT_REG (CSR_BASE+0x250)
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/* Bits for CSR_HW_IF_CONFIG_REG */
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#define CSR49_HW_IF_CONFIG_REG_BIT_4965_R (0x00000010)
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#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER (0x00000C00)
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#define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI (0x00000100)
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#define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI (0x00000200)
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#define CSR39_HW_IF_CONFIG_REG_BIT_3945_MB (0x00000100)
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#define CSR39_HW_IF_CONFIG_REG_BIT_3945_MM (0x00000200)
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#define CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC (0x00000400)
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#define CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE (0x00000800)
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#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000)
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#define CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000)
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#define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A (0x00080000)
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#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
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#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */
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#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */
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#define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */
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#define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int*/
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#define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec*/
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/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
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* acknowledged (reset) by host writing "1" to flagged bits. */
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#define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
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#define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */
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#define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */
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#define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */
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#define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */
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#define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */
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#define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */
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#define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */
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#define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */
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#define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */
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#define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */
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#define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \
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CSR_INT_BIT_HW_ERR | \
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CSR_INT_BIT_FH_TX | \
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CSR_INT_BIT_SW_ERR | \
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CSR_INT_BIT_RF_KILL | \
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CSR_INT_BIT_SW_RX | \
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CSR_INT_BIT_WAKEUP | \
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CSR_INT_BIT_ALIVE)
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/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
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#define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */
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#define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */
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#define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */
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#define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */
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#define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */
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#define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */
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#define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */
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#define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */
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#define CSR39_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
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CSR39_FH_INT_BIT_RX_CHNL2 | \
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CSR_FH_INT_BIT_RX_CHNL1 | \
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CSR_FH_INT_BIT_RX_CHNL0)
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#define CSR39_FH_INT_TX_MASK (CSR39_FH_INT_BIT_TX_CHNL6 | \
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CSR_FH_INT_BIT_TX_CHNL1 | \
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CSR_FH_INT_BIT_TX_CHNL0)
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#define CSR49_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
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CSR_FH_INT_BIT_RX_CHNL1 | \
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CSR_FH_INT_BIT_RX_CHNL0)
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#define CSR49_FH_INT_TX_MASK (CSR_FH_INT_BIT_TX_CHNL1 | \
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CSR_FH_INT_BIT_TX_CHNL0)
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/* GPIO */
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#define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200)
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#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000)
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#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC (0x00000200)
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/* RESET */
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#define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001)
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#define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002)
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#define CSR_RESET_REG_FLAG_SW_RESET (0x00000080)
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#define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100)
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#define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200)
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#define CSR_RESET_LINK_PWR_MGMT_DISABLED (0x80000000)
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/*
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* GP (general purpose) CONTROL REGISTER
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* Bit fields:
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* 27: HW_RF_KILL_SW
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* Indicates state of (platform's) hardware RF-Kill switch
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* 26-24: POWER_SAVE_TYPE
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* Indicates current power-saving mode:
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* 000 -- No power saving
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* 001 -- MAC power-down
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* 010 -- PHY (radio) power-down
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* 011 -- Error
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* 9-6: SYS_CONFIG
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* Indicates current system configuration, reflecting pins on chip
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* as forced high/low by device circuit board.
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* 4: GOING_TO_SLEEP
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* Indicates MAC is entering a power-saving sleep power-down.
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* Not a good time to access device-internal resources.
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* 3: MAC_ACCESS_REQ
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* Host sets this to request and maintain MAC wakeup, to allow host
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* access to device-internal resources. Host must wait for
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* MAC_CLOCK_READY (and !GOING_TO_SLEEP) before accessing non-CSR
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* device registers.
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* 2: INIT_DONE
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* Host sets this to put device into fully operational D0 power mode.
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* Host resets this after SW_RESET to put device into low power mode.
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* 0: MAC_CLOCK_READY
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* Indicates MAC (ucode processor, etc.) is powered up and can run.
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* Internal resources are accessible.
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* NOTE: This does not indicate that the processor is actually running.
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* NOTE: This does not indicate that 4965 or 3945 has completed
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* init or post-power-down restore of internal SRAM memory.
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* Use CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP as indication that
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* SRAM is restored and uCode is in normal operation mode.
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* Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
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* do not need to save/restore it.
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* NOTE: After device reset, this bit remains "0" until host sets
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* INIT_DONE
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*/
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#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001)
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#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004)
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#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008)
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#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010)
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#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001)
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#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000)
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#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
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#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
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/* HW REV */
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#define CSR_HW_REV_TYPE_MSK (0x00000F0)
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#define CSR_HW_REV_TYPE_3945 (0x00000D0)
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#define CSR_HW_REV_TYPE_4965 (0x0000000)
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#define CSR_HW_REV_TYPE_5300 (0x0000020)
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#define CSR_HW_REV_TYPE_5350 (0x0000030)
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#define CSR_HW_REV_TYPE_5100 (0x0000050)
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#define CSR_HW_REV_TYPE_5150 (0x0000040)
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#define CSR_HW_REV_TYPE_1000 (0x0000060)
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#define CSR_HW_REV_TYPE_6x00 (0x0000070)
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#define CSR_HW_REV_TYPE_6x50 (0x0000080)
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#define CSR_HW_REV_TYPE_6x00g2 (0x00000B0)
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#define CSR_HW_REV_TYPE_NONE (0x00000F0)
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/* EEPROM REG */
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#define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001)
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#define CSR_EEPROM_REG_BIT_CMD (0x00000002)
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#define CSR_EEPROM_REG_MSK_ADDR (0x0000FFFC)
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#define CSR_EEPROM_REG_MSK_DATA (0xFFFF0000)
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/* EEPROM GP */
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#define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */
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#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
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#define CSR_EEPROM_GP_BAD_SIGNATURE_BOTH_EEP_AND_OTP (0x00000000)
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#define CSR_EEPROM_GP_BAD_SIG_EEP_GOOD_SIG_OTP (0x00000001)
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#define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K (0x00000002)
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#define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K (0x00000004)
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/* One-time-programmable memory general purpose reg */
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#define CSR_OTP_GP_REG_DEVICE_SELECT (0x00010000) /* 0 - EEPROM, 1 - OTP */
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#define CSR_OTP_GP_REG_OTP_ACCESS_MODE (0x00020000) /* 0 - absolute, 1 - relative */
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#define CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK (0x00100000) /* bit 20 */
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#define CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK (0x00200000) /* bit 21 */
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/* GP REG */
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#define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */
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#define CSR_GP_REG_NO_POWER_SAVE (0x00000000)
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#define CSR_GP_REG_MAC_POWER_SAVE (0x01000000)
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#define CSR_GP_REG_PHY_POWER_SAVE (0x02000000)
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#define CSR_GP_REG_POWER_SAVE_ERROR (0x03000000)
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/* CSR GIO */
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#define CSR_GIO_REG_VAL_L0S_ENABLED (0x00000002)
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/*
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* UCODE-DRIVER GP (general purpose) mailbox register 1
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* Host driver and uCode write and/or read this register to communicate with
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* each other.
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* Bit fields:
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* 4: UCODE_DISABLE
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* Host sets this to request permanent halt of uCode, same as
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* sending CARD_STATE command with "halt" bit set.
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* 3: CT_KILL_EXIT
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* Host sets this to request exit from CT_KILL state, i.e. host thinks
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* device temperature is low enough to continue normal operation.
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* 2: CMD_BLOCKED
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* Host sets this during RF KILL power-down sequence (HW, SW, CT KILL)
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* to release uCode to clear all Tx and command queues, enter
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* unassociated mode, and power down.
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* NOTE: Some devices also use HBUS_TARG_MBX_C register for this bit.
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* 1: SW_BIT_RFKILL
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* Host sets this when issuing CARD_STATE command to request
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* device sleep.
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* 0: MAC_SLEEP
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* uCode sets this when preparing a power-saving power-down.
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* uCode resets this when power-up is complete and SRAM is sane.
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* NOTE: 3945/4965 saves internal SRAM data to host when powering down,
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* and must restore this data after powering back up.
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* MAC_SLEEP is the best indication that restore is complete.
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* Later devices (5xxx/6xxx/1xxx) use non-volatile SRAM, and
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* do not need to save/restore it.
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*/
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#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
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#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
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#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004)
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#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008)
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/* GP Driver */
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#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_MSK (0x00000003)
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#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_3x3_HYB (0x00000000)
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#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_HYB (0x00000001)
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#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA (0x00000002)
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#define CSR_GP_DRIVER_REG_BIT_CALIB_VERSION6 (0x00000004)
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/* GIO Chicken Bits (PCI Express bus link power management) */
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#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000)
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#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000)
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/* LED */
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#define CSR_LED_BSM_CTRL_MSK (0xFFFFFFDF)
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#define CSR_LED_REG_TRUN_ON (0x78)
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#define CSR_LED_REG_TRUN_OFF (0x38)
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/* ANA_PLL */
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#define CSR39_ANA_PLL_CFG_VAL (0x01000000)
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#define CSR50_ANA_PLL_CFG_VAL (0x00880300)
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/* HPET MEM debug */
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#define CSR_DBG_HPET_MEM_REG_VAL (0xFFFF0000)
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/* DRAM INT TABLE */
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#define CSR_DRAM_INT_TBL_ENABLE (1 << 31)
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#define CSR_DRAM_INIT_TBL_WRAP_CHECK (1 << 27)
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/*
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* HBUS (Host-side Bus)
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*
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* HBUS registers are mapped directly into PCI bus space, but are used
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* to indirectly access device's internal memory or registers that
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* may be powered-down.
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*
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* Use iwl_write_direct32()/iwl_read_direct32() family for these registers;
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* host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
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* to make sure the MAC (uCode processor, etc.) is powered up for accessing
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* internal resources.
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*
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* Do not use iwl_write32()/iwl_read32() family to access these registers;
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* these provide only simple PCI bus access, without waking up the MAC.
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*/
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#define HBUS_BASE (0x400)
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/*
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* Registers for accessing device's internal SRAM memory (e.g. SCD SRAM
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* structures, error log, event log, verifying uCode load).
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* First write to address register, then read from or write to data register
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* to complete the job. Once the address register is set up, accesses to
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* data registers auto-increment the address by one dword.
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* Bit usage for address registers (read or write):
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* 0-31: memory address within device
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*/
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#define HBUS_TARG_MEM_RADDR (HBUS_BASE+0x00c)
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#define HBUS_TARG_MEM_WADDR (HBUS_BASE+0x010)
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#define HBUS_TARG_MEM_WDAT (HBUS_BASE+0x018)
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#define HBUS_TARG_MEM_RDAT (HBUS_BASE+0x01c)
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/* Mailbox C, used as workaround alternative to CSR_UCODE_DRV_GP1 mailbox */
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#define HBUS_TARG_MBX_C (HBUS_BASE+0x030)
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#define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED (0x00000004)
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/*
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* Registers for accessing device's internal peripheral registers
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* (e.g. SCD, BSM, etc.). First write to address register,
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* then read from or write to data register to complete the job.
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* Bit usage for address registers (read or write):
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* 0-15: register address (offset) within device
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* 24-25: (# bytes - 1) to read or write (e.g. 3 for dword)
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*/
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#define HBUS_TARG_PRPH_WADDR (HBUS_BASE+0x044)
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#define HBUS_TARG_PRPH_RADDR (HBUS_BASE+0x048)
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#define HBUS_TARG_PRPH_WDAT (HBUS_BASE+0x04c)
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#define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050)
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/*
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* Per-Tx-queue write pointer (index, really!)
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* Indicates index to next TFD that driver will fill (1 past latest filled).
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* Bit usage:
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* 0-7: queue write index
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* 11-8: queue selector
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*/
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#define HBUS_TARG_WRPTR (HBUS_BASE+0x060)
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#endif /* !__iwl_csr_h__ */
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