/*
 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Copyright (c) 2009, Intel Corporation
 * All rights reserved.
 */

/*
 * Sun elects to use this software under the BSD license.
 */

/*
 * 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 - 2009 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * Contact Information:
 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2009 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 _IWH_HW_H_
#define _IWH_HW_H_

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * maximum scatter/gather
 */
#define IWH_MAX_SCATTER (10)

/*
 * Flow Handler Definitions
 */
#define FH_MEM_LOWER_BOUND      (0x1000)
#define FH_MEM_UPPER_BOUND      (0x1EF0)

#define IWH_FH_REGS_LOWER_BOUND (0x1000)
#define IWH_FH_REGS_UPPER_BOUND (0x2000)

/*
 * TFDB  Area - TFDs buffer table
 */
#define FH_MEM_TFDB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x000)
#define FH_MEM_TFDB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x900)

/*
 * channels 0 - 8
 */
#define FH_MEM_TFDB_CHNL_BUF0(x) (FH_MEM_TFDB_LOWER_BOUND + (x) * 0x100)
#define FH_MEM_TFDB_CHNL_BUF1(x) (FH_MEM_TFDB_LOWER_BOUND + 0x80 + (x) * 0x100)

/*
 * TFDIB Area - TFD Immediate Buffer
 */
#define FH_MEM_TFDIB_LOWER_BOUND        (FH_MEM_LOWER_BOUND + 0x900)
#define FH_MEM_TFDIB_UPPER_BOUND        (FH_MEM_LOWER_BOUND + 0x958)

/*
 * channels 0 - 10
 */
#define FH_MEM_TFDIB_CHNL(x)    (FH_MEM_TFDIB_LOWER_BOUND + (x) * 0x8)

/*
 * TFDIB registers used in Service Mode
 */
#define FH_MEM_TFDIB_CHNL9_REG0 (FH_MEM_TFDIB_CHNL(9))
#define FH_MEM_TFDIB_CHNL9_REG1 (FH_MEM_TFDIB_CHNL(9) + 4)
#define FH_MEM_TFDIB_CHNL10_REG0        (FH_MEM_TFDIB_CHNL(10))
#define FH_MEM_TFDIB_CHNL10_REG1        (FH_MEM_TFDIB_CHNL(10) + 4)

/*
 * Tx service channels
 */
#define FH_MEM_TFDIB_DRAM_ADDR_MSB_MASK (0xF00000000)
#define FH_MEM_TFDIB_TB_LENGTH_MASK     (0x0001FFFF)    /* bits 16:0 */

#define FH_MEM_TFDIB_DRAM_ADDR_LSB_BITSHIFT     (0)
#define FH_MEM_TFDIB_DRAM_ADDR_MSB_BITSHIFT     (32)
#define FH_MEM_TFDIB_TB_LENGTH_BITSHIFT         (0)

#define FH_MEM_TFDIB_REG0_ADDR_MASK     (0xFFFFFFFF)
#define FH_MEM_TFDIB_REG1_ADDR_MASK     (0xF0000000)
#define FH_MEM_TFDIB_REG1_LENGTH_MASK   (0x0001FFFF)

#define FH_MEM_TFDIB_REG0_ADDR_BITSHIFT (0)
#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT (28)
#define FH_MEM_TFDIB_REG1_LENGTH_BITSHIFT       (0)
#define FH_MEM_TFDIB_DRAM_ADDR_LSB_MASK         (0xFFFFFFFF)

/*
 * TRB Area - Transmit Request Buffers
 */
#define FH_MEM_TRB_LOWER_BOUND  (FH_MEM_LOWER_BOUND + 0x0958)
#define FH_MEM_TRB_UPPER_BOUND  (FH_MEM_LOWER_BOUND + 0x0980)

/*
 * channels 0 - 8
 */
#define FH_MEM_TRB_CHNL(x)      (FH_MEM_TRB_LOWER_BOUND + (x) * 0x4)

/*
 * Keep-Warm (KW) buffer base address.
 *
 * Driver must allocate a 4KByte buffer that is used by Shirely Peak(SP) for
 * keeping the
 * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
 * DRAM access when SP is Txing or Rxing.  The dummy accesses prevent host
 * from going into a power-savings mode that would cause higher DRAM latency,
 * and possible data over/under-runs, before all Tx/Rx is complete.
 *
 * Driver loads IWH_FH_KW_MEM_ADDR_REG with the physical address (bits 35:4)
 * of the buffer, which must be 4K aligned.  Once this is set up, the SP
 * automatically invokes keep-warm accesses when normal accesses might not
 * be sufficient to maintain fast DRAM response.
 *
 * Bit fields:
 * 31-0:  Keep-warm buffer physical base address [35:4], must be 4K aligned
 */
#define IWH_FH_KW_MEM_ADDR_REG  (FH_MEM_LOWER_BOUND + 0x97C)

/*
 * STAGB Area - Scheduler TAG Buffer
 */
#define FH_MEM_STAGB_LOWER_BOUND        (FH_MEM_LOWER_BOUND + 0x980)
#define FH_MEM_STAGB_UPPER_BOUND        (FH_MEM_LOWER_BOUND + 0x9D0)

/*
 * channels 0 - 8
 */
#define FH_MEM_STAGB_0(x)       (FH_MEM_STAGB_LOWER_BOUND + (x) * 0x8)
#define FH_MEM_STAGB_1(x)       (FH_MEM_STAGB_LOWER_BOUND + 0x4 + (x) * 0x8)

/*
 * Tx service channels
 */
#define FH_MEM_SRAM_ADDR_9      (FH_MEM_STAGB_LOWER_BOUND + 0x048)
#define FH_MEM_SRAM_ADDR_10     (FH_MEM_STAGB_LOWER_BOUND + 0x04C)

#define FH_MEM_STAGB_SRAM_ADDR_MASK     (0x00FFFFFF)

/*
 * TFD Circular Buffers Base (CBBC) addresses
 *
 * SP has 16 base pointer registers, one for each of 16 host-DRAM-resident
 * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
 * (see struct iwh_tfd_frame).  These 16 pointer registers are offset by 0x04
 * bytes from one another.  Each TFD circular buffer in DRAM must be 256-byte
 * aligned (address bits 0-7 must be 0).
 *
 * Bit fields in each pointer register:
 * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned
 */
#define FH_MEM_CBBC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
#define FH_MEM_CBBC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10)

/*
 * queues 0 - 15
 */
#define FH_MEM_CBBC_QUEUE(x)    (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4)

/*
 * TAGR Area - TAG reconstruct table
 */
#define FH_MEM_TAGR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xA10)
#define FH_MEM_TAGR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA70)

/*
 * TDBGR Area - Tx Debug Registers
 */
#define FH_MEM_TDBGR_LOWER_BOUND        (FH_MEM_LOWER_BOUND + 0x0A70)
#define FH_MEM_TDBGR_UPPER_BOUND        (FH_MEM_LOWER_BOUND + 0x0B20)

/*
 * channels 0 - 10
 */
#define FH_MEM_TDBGR_CHNL(x)    (FH_MEM_TDBGR_LOWER_BOUND + (x) * 0x10)

#define FH_MEM_TDBGR_CHNL_REG_0(x)      (FH_MEM_TDBGR_CHNL(x))
#define FH_MEM_TDBGR_CHNL_REG_1(x)      (FH_MEM_TDBGR_CHNL_REG_0(x) + 0x4)

#define FH_MEM_TDBGR_CHNL_BYTES_TO_FIFO_MASK    (0x000FFFFF)
#define FH_MEM_TDBGR_CHNL_BYTES_TO_FIFO_BITSHIFT        (0)

/*
 * RDBUF Area
 */
#define FH_MEM_RDBUF_LOWER_BOUND        (FH_MEM_LOWER_BOUND + 0xB80)
#define FH_MEM_RDBUF_UPPER_BOUND        (FH_MEM_LOWER_BOUND + 0xBC0)
#define FH_MEM_RDBUF_CHNL0      (FH_MEM_RDBUF_LOWER_BOUND)

/*
 * Rx SRAM Control and Status Registers (RSCSR)
 *
 * These registers provide handshake between driver and Shirley Peak for
 * the Rx queue
 * (this queue handles *all* command responses, notifications, Rx data, etc.
 * sent from SP uCode to host driver).  Unlike Tx, there is only one Rx
 * queue, and only one Rx DMA/FIFO channel.  Also unlike Tx, which can
 * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
 * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
 * mapping between RBDs and RBs.
 *
 * Driver must allocate host DRAM memory for the following, and set the
 * physical address of each into SP registers:
 *
 * 1)  Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
 *     entries (although any power of 2, up to 4096, is selectable by driver).
 *     Each entry (1 dword) points to a receive buffer (RB) of consistent size
 *     (typically 4K, although 8K or 16K are also selectable by driver).
 *     Driver sets up RB size and number of RBDs in the CB via Rx config
 *     register FH_MEM_RCSR_CHNL0_CONFIG_REG.
 *
 *     Bit fields within one RBD:
 *     27-0:  Receive Buffer physical address bits [35:8], 256-byte aligned.
 *
 *     Driver sets physical address [35:8] of base of RBD circular buffer
 *     into FH_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
 *
 * 2)  Rx status buffer, 8 bytes, in which SP indicates which Rx Buffers
 *     (RBs) have been filled, via a "write pointer", actually the index of
 *     the RB's corresponding RBD within the circular buffer.  Driver sets
 *     physical address [35:4] into FH_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
 *
 *     Bit fields in lower dword of Rx status buffer (upper dword not used
 *     by driver; see struct iwh_shared, val0):
 *     31-12:  Not used by driver
 *     11- 0:  Index of last filled Rx buffer descriptor
 *             (SP writes, driver reads this value)
 *
 * As the driver prepares Receive Buffers (RBs) for SP to fill, driver must
 * enter pointers to these RBs into contiguous RBD circular buffer entries,
 * and update the SP's "write" index register, FH_RSCSR_CHNL0_RBDCB_WPTR_REG.
 *
 * This "write" index corresponds to the *next* RBD that the driver will make
 * available, i.e. one RBD past the the tail of the ready-to-fill RBDs within
 * the circular buffer.  This value should initially be 0 (before preparing any
 * RBs), should be 8 after preparing the first 8 RBs (for example), and must
 * wrap back to 0 at the end of the circular buffer (but don't wrap before
 * "read" index has advanced past 1!  See below).
 * NOTE:  SP EXPECTS THE WRITE INDEX TO BE INCREMENTED IN MULTIPLES OF 8.
 *
 * As the SP fills RBs (referenced from contiguous RBDs within the circular
 * buffer), it updates the Rx status buffer in DRAM, 2) described above,
 * to tell the driver the index of the latest filled RBD.  The driver must
 * read this "read" index from DRAM after receiving an Rx interrupt from SP.
 *
 * The driver must also internally keep track of a third index, which is the
 * next RBD to process.  When receiving an Rx interrupt, driver should process
 * all filled but unprocessed RBs up to, but not including, the RB
 * corresponding to the "read" index.  For example, if "read" index becomes "1",
 * driver may process the RB pointed to by RBD 0.  Depending on volume of
 * traffic, there may be many RBs to process.
 *
 * If read index == write index, SP thinks there is no room to put new data.
 * Due to this, the maximum number of filled RBs is 255, instead of 256.  To
 * be safe, make sure that there is a gap of at least 2 RBDs between "write"
 * and "read" indexes; that is, make sure that there are no more than 254
 * buffers waiting to be filled.
 */
#define FH_MEM_RSCSR_LOWER_BOUND        (FH_MEM_LOWER_BOUND + 0xBC0)
#define FH_MEM_RSCSR_UPPER_BOUND        (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RSCSR_CHNL0      (FH_MEM_RSCSR_LOWER_BOUND)
#define FH_MEM_RSCSR_CHNL1      (FH_MEM_RSCSR_LOWER_BOUND + 0x020)

/*
 * Physical base address of 8-byte Rx Status buffer.
 * Bit fields:
 * 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
 */

#define FH_RSCSR_CHNL0_STTS_WPTR_REG    (FH_MEM_RSCSR_CHNL0)

/*
 * Physical base address of Rx Buffer Descriptor Circular Buffer.
 * Bit fields:
 * 27-0:  RBD CD physical base address [35:8], must be 256-byte aligned.
 */
#define FH_RSCSR_CHNL0_RBDCB_BASE_REG   (FH_MEM_RSCSR_CHNL0 + 0x004)

/*
 * Rx write pointer (index, really!).
 * Bit fields:
 * 11-0:  Index of driver's most recent prepared-to-be-filled RBD, + 1.
 *        NOTE:  For 256-entry circular buffer, use only bits [7:0].
 */
#define FH_RSCSR_CHNL0_RBDCB_WPTR_REG   (FH_MEM_RSCSR_CHNL0 + 0x008)
#define FH_RSCSR_CHNL0_RBDCB_RPTR_REG   (FH_MEM_RSCSR_CHNL0 + 0x00c)


/*
 * RSCSR registers used in Service mode
 */
#define FH_RSCSR_CHNL1_RB_WPTR_REG      (FH_MEM_RSCSR_CHNL1)
#define FH_RSCSR_CHNL1_RB_WPTR_OFFSET_REG       (FH_MEM_RSCSR_CHNL1 + 0x004)
#define FH_RSCSR_CHNL1_RB_CHUNK_NUM_REG         (FH_MEM_RSCSR_CHNL1 + 0x008)
#define FH_RSCSR_CHNL1_SRAM_ADDR_REG    (FH_MEM_RSCSR_CHNL1 + 0x00C)

/*
 * Rx Config/Status Registers (RCSR)
 * Rx Config Reg for channel 0 (only channel used)
 *
 * Driver must initialize FH_MEM_RCSR_CHNL0_CONFIG_REG as follows for
 * normal operation (see bit fields).
 *
 * Clearing FH_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
 * Driver should poll FH_MEM_RSSR_RX_STATUS_REG for
 * FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
 *
 * Bit fields:
 * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
 *        '10' operate normally
 * 29-24: reserved
 * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
 *        min "5" for 32 RBDs, max "12" for 4096 RBDs.
 * 19-18: reserved
 * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
 *        '10' 12K, '11' 16K.
 * 15-14: reserved
 * 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
 * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
 *        typical value 0x10 (about 1/2 msec)
 * 3- 0: reserved
 */
#define FH_MEM_RCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xCC0)
#define FH_MEM_RCSR_CHNL0       (FH_MEM_RCSR_LOWER_BOUND)
#define FH_MEM_RCSR_CHNL1       (FH_MEM_RCSR_LOWER_BOUND + 0x020)

#define FH_MEM_RCSR_CHNL0_CONFIG_REG    (FH_MEM_RCSR_CHNL0)
#define FH_MEM_RCSR_CHNL0_CREDIT_REG    (FH_MEM_RCSR_CHNL0 + 0x004)
#define FH_MEM_RCSR_CHNL0_RBD_STTS_REG  (FH_MEM_RCSR_CHNL0 + 0x008)
#define FH_MEM_RCSR_CHNL0_RB_STTS_REG   (FH_MEM_RCSR_CHNL0 + 0x00C)
#define FH_MEM_RCSR_CHNL0_RXPD_STTS_REG (FH_MEM_RCSR_CHNL0 + 0x010)

#define FH_MEM_RCSR_CHNL0_RBD_STTS_FRAME_RB_CNT_MASK    (0x7FFFFFF0)

/*
 * RCSR registers used in Service mode
 */
#define FH_MEM_RCSR_CHNL1_CONFIG_REG    (FH_MEM_RCSR_CHNL1)
#define FH_MEM_RCSR_CHNL1_RB_STTS_REG   (FH_MEM_RCSR_CHNL1 + 0x00C)
#define FH_MEM_RCSR_CHNL1_RX_PD_STTS_REG        (FH_MEM_RCSR_CHNL1 + 0x010)

/*
 * Rx Shared Status Registers (RSSR)
 *
 * After stopping Rx DMA channel (writing 0 to FH_MEM_RCSR_CHNL0_CONFIG_REG),
 * driver must poll FH_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
 *
 * Bit fields:
 * 24:  1 = Channel 0 is idle
 *
 * FH_MEM_RSSR_SHARED_CTRL_REG and FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV contain
 * default values that should not be altered by the driver.
 */
#define FH_MEM_RSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC40)
#define FH_MEM_RSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
#define FH_MEM_RSSR_SHARED_CTRL_REG     (FH_MEM_RSSR_LOWER_BOUND)
#define FH_MEM_RSSR_RX_STATUS_REG       (FH_MEM_RSSR_LOWER_BOUND + 0x004)
#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV (FH_MEM_RSSR_LOWER_BOUND + 0x008)

/*
 * Transmit DMA Channel Control/Status Registers (TCSR)
 *
 * SP has one configuration register for each of 8 Tx DMA/FIFO channels
 * supported in hardware; config regs are separated by 0x20 bytes.
 *
 * To use a Tx DMA channel, driver must initialize its
 *
 *
 * All other bits should be 0.
 *
 * Bit fields:
 * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
 *        '10' operate normally
 * 29- 4: Reserved, set to "0"
 *     3: Enable internal DMA requests (1, normal operation), disable (0)
 *  2- 0: Reserved, set to "0"
 */
#define IWH_FH_TCSR_UPPER_BOUND (IWH_FH_REGS_LOWER_BOUND + 0xE60)

#define IWH_FH_TCSR_CHNL_NUM    (7)

/*
 * Tx Shared Status Registers (TSSR)
 *
 * After stopping Tx DMA channel (writing 0 to
 * IWH_FH_TSSR_TX_STATUS_REG until selected Tx channel is idle
 * (channel's buffers empty | no pending requests).
 *
 * Bit fields:
 * 31-24:  1 = Channel buffers empty (channel 7:0)
 * 23-16:  1 = No pending requests (channel 7:0)
 */
#define IWH_FH_TSSR_LOWER_BOUND (IWH_FH_REGS_LOWER_BOUND + 0xEA0)
#define IWH_FH_TSSR_UPPER_BOUND (IWH_FH_REGS_LOWER_BOUND + 0xEC0)

#define IWH_FH_TSSR_TX_MSG_CONFIG_REG (IWH_FH_TSSR_LOWER_BOUND + 0x008)
#define IWH_FH_TSSR_TX_STATUS_REG       (IWH_FH_TSSR_LOWER_BOUND + 0x010)

#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON      (0xFF000000)
#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON      (0x00FF0000)

#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_64B     (0x00000000)
#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B    (0x00000400)
#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_256B    (0x00000800)
#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_512B    (0x00000C00)

#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON       (0x00000100)
#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON       (0x00000080)

#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH     (0x00000020)
#define IWH_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH   (0x00000005)

#define IWH_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_chnl) \
        ((1 << (_chnl)) << 24)
#define IWH_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_chnl) \
        ((1 << (_chnl)) << 16)

#define IWH_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) \
        (IWH_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_chnl) | \
        IWH_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_chnl))

/*
 * TFDIB
 */
#define IWH_FH_TFDIB_UPPER_BOUND        (IWH_FH_REGS_LOWER_BOUND + 0x958)
#define IWH_FH_TFDIB_CTRL1_REG_POS_MSB  (28)
#define IWH_FH_TFDIB_LOWER_BOUND        (IWH_FH_REGS_LOWER_BOUND + 0x900)

#define IWH_FH_TFDIB_CTRL0_REG(_chnl)\
        (IWH_FH_TFDIB_LOWER_BOUND + 0x8 * _chnl)

#define IWH_FH_TFDIB_CTRL1_REG(_chnl)\
        (IWH_FH_TFDIB_LOWER_BOUND + 0x8 * _chnl + 0x4)

/*
 * Debug Monitor Area
 */
#define FH_MEM_DM_LOWER_BOUND   (FH_MEM_LOWER_BOUND + 0xEE0)
#define FH_MEM_DM_UPPER_BOUND   (FH_MEM_LOWER_BOUND + 0xEF0)
#define FH_MEM_DM_CONTROL_MASK_REG      (FH_MEM_DM_LOWER_BOUND)
#define FH_MEM_DM_CONTROL_START_REG     (FH_MEM_DM_LOWER_BOUND + 0x004)
#define FH_MEM_DM_CONTROL_STATUS_REG    (FH_MEM_DM_LOWER_BOUND + 0x008)
#define FH_MEM_DM_MONITOR_REG   (FH_MEM_DM_LOWER_BOUND + 0x00C)

#define FH_TB1_ADDR_LOW_MASK    (0xFFFFFFFF)    /* bits 31:0 */
#define FH_TB1_ADDR_HIGH_MASK   (0xF00000000)   /* bits 35:32 */
#define FH_TB2_ADDR_LOW_MASK    (0x0000FFFF)    /* bits 15:0 */
#define FH_TB2_ADDR_HIGH_MASK   (0xFFFFF0000)   /* bits 35:16 */

#define FH_TB1_ADDR_LOW_BITSHIFT        (0)
#define FH_TB1_ADDR_HIGH_BITSHIFT       (32)
#define FH_TB2_ADDR_LOW_BITSHIFT        (0)
#define FH_TB2_ADDR_HIGH_BITSHIFT       (16)

#define FH_TB1_LENGTH_MASK      (0x00000FFF)    /* bits 11:0 */
#define FH_TB2_LENGTH_MASK      (0x00000FFF)    /* bits 11:0 */

/*
 * number of FH channels including 2 service mode
 */
#define NUM_OF_FH_CHANNELS      (10)

/*
 * ctrl field bitology
 */
#define FH_TFD_CTRL_PADDING_MASK        (0xC0000000)    /* bits 31:30 */
#define FH_TFD_CTRL_NUMTB_MASK          (0x1F000000)    /* bits 28:24 */

#define FH_TFD_CTRL_PADDING_BITSHIFT    (30)
#define FH_TFD_CTRL_NUMTB_BITSHIFT      (24)

#define FH_TFD_GET_NUM_TBS(ctrl) \
        ((ctrl & FH_TFD_CTRL_NUMTB_MASK) >> FH_TFD_CTRL_NUMTB_BITSHIFT)
#define FH_TFD_GET_PADDING(ctrl) \
        ((ctrl & FH_TFD_CTRL_PADDING_MASK) >> FH_TFD_CTRL_PADDING_BITSHIFT)

/*
 * TCSR: tx_config register values
 */
#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF      (0x00000000)
#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER   (0x00000001)
#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_ARC      (0x00000002)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL     (0x00000008)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT   (0x00000000)
#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD   (0x00200000)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT            (0x00000000)
#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD   (0x00400000)
#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD            (0x00800000)


#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY  (0x00000000)
#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT   (0x00002000)

#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR   (0x00000001)

#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM      (20)
#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX      (12)

#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID  (0x00000003)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE   (0x80000000)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL    (0x00000000)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD          (0x00100000)

#define IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE    (0x00000000)

#define IWH_FH_TCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)

#define IWH_FH_TCSR_CHNL_TX_CONFIG_REG(_chnl)\
        (IWH_FH_TCSR_LOWER_BOUND + 0x20 * _chnl)

#define IWH_FH_TCSR_CHNL_TX_CREDIT_REG(_chnl)\
        (IWH_FH_TCSR_LOWER_BOUND + 0x20 * _chnl + 0x4)

#define IWH_FH_TCSR_CHNL_TX_BUF_STS_REG(_chnl)\
        (IWH_FH_TCSR_LOWER_BOUND + 0x20 * _chnl + 0x8)
#define IWH_FH_TCSR_CHNL_NUM            (7)

/*
 * CBB table
 */
#define FH_CBB_ADDR_MASK        0x0FFFFFFF      /* bits 27:0 */
#define FH_CBB_ADDR_BIT_SHIFT   (8)

/*
 * RCSR:  channel 0 rx_config register defines
 */
#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MASK (0xC0000000) /* bits 30-31 */
#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MASK (0x00F00000) /* bits 20-23 */
#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MASK (0x00030000) /* bits 16-17 */
#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MASK (0x00008000) /* bit 15 */
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MASK (0x00001000) /* bit 12 */
#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MASK (0x00000FF0) /* bit 4-11 */

#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT   (20)
#define FH_RCSR_RX_CONFIG_RB_SIZE_BITSHIFT      (16)

#define FH_RCSR_GET_RDBC_SIZE(reg) \
        ((reg & FH_RCSR_RX_CONFIG_RDBC_SIZE_MASK) >> \
        FH_RCSR_RX_CONFIG_RDBC_SIZE_BITSHIFT)

/*
 * RCSR:  channel 1 rx_config register defines
 */
#define FH_RCSR_CHNL1_RX_CONFIG_DMA_CHNL_EN_MASK  (0xC0000000) /* bits 30-31 */
#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_MASK     (0x00003000) /* bits 12-13 */

/*
 * RCSR: rx_config register values
 */
#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL     (0x00000000)
#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL    (0x80000000)
#define FH_RCSR_RX_CONFIG_SINGLE_FRAME_MODE     (0x00008000)

#define FH_RCSR_RX_CONFIG_RDRBD_DISABLE_VAL     (0x00000000)
#define FH_RCSR_RX_CONFIG_RDRBD_ENABLE_VAL      (0x20000000)

#define IWH_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K        (0x00000000)
#define IWH_TX_RTS_RETRY_LIMIT          (60)
#define IWH_TX_DATA_RETRY_LIMIT         (15)

#define IWH_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K        (0x00010000)
#define IWH_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K       (0x00020000)
#define IWH_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K       (0x00030000)

/*
 * RCSR channel 0 config register values
 */
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL     (0x00000000)
#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL   (0x00001000)

/*
 * RCSR channel 1 config register values
 */
#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_NO_INT_VAL     (0x00000000)
#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_INT_HOST_VAL   (0x00001000)
#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_INT_RTC_VAL    (0x00002000)
#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_INT_HOST_RTC_VAL (0x00003000)

/*
 * RCSR: rb status register defines
 */
#define FH_RCSR_RB_BYTE_TO_SEND_MASK    (0x0001FFFF)    /* bits 0-16 */

/*
 * RSCSR: defs used in normal mode
 */
#define FH_RSCSR_CHNL0_RBDCB_WPTR_MASK  (0x00000FFF)    /* bits 0-11 */

/*
 * RSCSR: defs used in service mode
 */
#define FH_RSCSR_CHNL1_SRAM_ADDR_MASK   (0x00FFFFFF)    /* bits 0-23 */
#define FH_RSCSR_CHNL1_RB_WPTR_MASK     (0x0FFFFFFF)    /* bits 0-27 */
#define FH_RSCSR_CHNL1_RB_WPTR_OFFSET_MASK      (0x000000FF)    /* bits 0-7 */

/*
 * RSSR: RX Enable Error IRQ to Driver register defines
 */
#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV_NO_RBD (0x00400000)   /* bit 22 */

#define FH_DRAM2SRAM_DRAM_ADDR_HIGH_MASK        (0xFFFFFFF00)   /* bits 8-35 */
#define FH_DRAM2SRAM_DRAM_ADDR_LOW_MASK         (0x000000FF)    /* bits 0-7 */

#define FH_DRAM2SRAM_DRAM_ADDR_HIGH_BITSHIFT    (8)     /* bits 8-35 */

/*
 * RX DRAM status regs definitions
 */
#define FH_RX_RB_NUM_MASK       (0x00000FFF)    /* bits 0-11 */
#define FH_RX_FRAME_NUM_MASK    (0x0FFF0000) /* bits 16-27 */

#define FH_RX_RB_NUM_BITSHIFT   (0)
#define FH_RX_FRAME_NUM_BITSHIFT        (16)

/*
 * Tx Scheduler
 *
 * The Tx Scheduler selects the next frame to be transmitted, chosing TFDs
 * (Transmit Frame Descriptors) from up to 16 circular queues resident in
 * host DRAM.  It steers each frame's Tx command (which contains the frame
 * data) through one of up to 7 prioritized Tx DMA FIFO channels within the
 * device.  A queue maps to only one (selectable by driver) Tx DMA channel,
 * but one DMA channel may take input from several queues.
 *
 * Tx DMA channels have dedicated purposes.  For SP, and are used as follows:
 * BMC TODO:  CONFIRM channel assignments, esp for 0/1
 *
 * 0 -- EDCA BK (background) frames, lowest priority
 * 1 -- EDCA BE (best effort) frames, normal priority
 * 2 -- EDCA VI (video) frames, higher priority
 * 3 -- EDCA VO (voice) and management frames, highest priority
 * 4 -- Commands (e.g. RXON, etc.)
 * 5 -- HCCA short frames
 * 6 -- HCCA long frames
 * 7 -- not used by driver (device-internal only)
 *
 * Driver should normally map queues 0-6 to Tx DMA/FIFO channels 0-6.
 * In addition, driver can map queues 7-15 to Tx DMA/FIFO channels 0-3 to
 * support 11n aggregation via EDCA DMA channels. BMC confirm.
 *
 * The driver sets up each queue to work in one of two modes:
 *
 * 1)  Scheduler-Ack, in which the scheduler automatically supports a
 *     block-ack (BA) window of up to 64 TFDs.  In this mode, each queue
 *     contains TFDs for a unique combination of Recipient Address (RA)
 *     and Traffic Identifier (TID), that is, traffic of a given
 *     Quality-Of-Service (QOS) priority, destined for a single station.
 *
 *     In scheduler-ack mode, the scheduler keeps track of the Tx status of
 *     each frame within the BA window, including whether it's been transmitted,
 *     and whether it's been acknowledged by the receiving station.  The device
 *     automatically processes block-acks received from the receiving STA,
 *     and reschedules un-acked frames to be retransmitted (successful
 *     Tx completion may end up being out-of-order).
 *
 *     The driver must maintain the queue's Byte Count table in host DRAM
 *     (struct iwh_sched_queue_byte_cnt_tbl) for this mode.
 *     This mode does not support fragmentation.
 *
 * 2)  FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order.
 *     The device may automatically retry Tx, but will retry only one frame
 *     at a time, until receiving ACK from receiving station, or reaching
 *     retry limit and giving up.
 *
 *     The command queue (#4) must use this mode!
 *     This mode does not require use of the Byte Count table in host DRAM.
 *
 * Driver controls scheduler operation via 3 means:
 * 1)  Scheduler registers
 * 2)  Shared scheduler data base in internal 4956 SRAM
 * 3)  Shared data in host DRAM
 *
 * Initialization:
 *
 * When loading, driver should allocate memory for:
 * 1)  16 TFD circular buffers, each with space for (typically) 256 TFDs.
 * 2)  16 Byte Count circular buffers in 16 KBytes contiguous memory
 *     (1024 bytes for each queue).
 *
 * After receiving "Alive" response from uCode, driver must initialize
 * the following (especially for queue #4, the command queue, otherwise
 * the driver can't issue commands!):
 *
 * 1)  SP's scheduler data base area in SRAM:
 *     a)  Read SRAM address of data base area from SCD_SRAM_BASE_ADDR
 *     b)  Clear and Init SCD_CONTEXT_DATA_OFFSET area (size 128 bytes)
 *     c)  Clear SCD_TX_STTS_BITMAP_OFFSET area (size 256 bytes)
 *     d)  Clear (BMC and init?) SCD_TRANSLATE_TBL_OFFSET (size 32 bytes)
 *
 * 2)  Init SCD_DRAM_BASE_ADDR with physical base of Tx byte count circular
 *     buffer array, allocated by driver in host DRAM.
 *
 * 3)
 */

/*
 * Max Tx window size is the max number of contiguous TFDs that the scheduler
 * can keep track of at one time when creating block-ack chains of frames.
 * Note that "64" matches the number of ack bits in a block-ack.
 * Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize
 * SCD_CONTEXT_QUEUE_OFFSET(x) values.
 */
#define SCD_WIN_SIZE    64
#define SCD_FRAME_LIMIT 64

/*
 * Driver may need to update queue-empty bits after changing queue's
 * write and read pointers (indexes) during (re-)initialization (i.e. when
 * scheduler is not tracking what's happening).
 * Bit fields:
 * 31-16:  Write mask -- 1: update empty bit, 0: don't change empty bit
 * 15-00:  Empty state, one for each queue -- 1: empty, 0: non-empty
 * NOTE BMC:  THIS REGISTER NOT USED BY LINUX DRIVER.
 */
#define SCD_EMPTY_BITS  (SCD_START_OFFSET + 0x4)

/*
 * Physical base address of array of byte count (BC) circular buffers (CBs).
 * Each Tx queue has a BC CB in host DRAM to support Scheduler-ACK mode.
 * This register points to BC CB for queue 0, must be on 1024-byte boundary.
 * Others are spaced by 1024 bytes.
 * Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad.
 * (Index into a queue's BC CB) = (index into queue's TFD CB) = (SSN & 0xff).
 * Bit fields:
 * 25-00:  Byte Count CB physical address [35:10], must be 1024-byte aligned.
 */
#define SCD_AIT         (SCD_START_OFFSET + 0x18)

/*
 * Queue (x) Write Pointers (indexes, really!), one for each Tx queue.
 * Initialized and updated by driver as new TFDs are added to queue.
 * NOTE:  If using Block Ack, index must correspond to frame's
 *        Start Sequence Number; index = (SSN & 0xff)
 * NOTE BMC:  Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses?
 */
#define SCD_QUEUE_WRPTR(x)      (SCD_START_OFFSET + 0x24 + (x) * 4)

/*
 * Queue (x) Read Pointers (indexes, really!), one for each Tx queue.
 * For FIFO mode, index indicates next frame to transmit.
 * For Scheduler-ACK mode, index indicates first frame in Tx window.
 * Initialized by driver, updated by scheduler.
 */
#define SCD_QUEUE_RDPTR(x)      (SCD_START_OFFSET + 0x64 + (x) * 4)
#define SCD_SETQUEUENUM         (SCD_START_OFFSET + 0xa4)
#define SCD_SET_TXSTAT_TXED     (SCD_START_OFFSET + 0xa8)
#define SCD_SET_TXSTAT_DONE     (SCD_START_OFFSET + 0xac)
#define SCD_SET_TXSTAT_NOT_SCHD (SCD_START_OFFSET + 0xb0)
#define SCD_DECREASE_CREDIT     (SCD_START_OFFSET + 0xb4)
#define SCD_DECREASE_SCREDIT    (SCD_START_OFFSET + 0xb8)
#define SCD_LOAD_CREDIT         (SCD_START_OFFSET + 0xbc)
#define SCD_LOAD_SCREDIT        (SCD_START_OFFSET + 0xc0)
#define SCD_BAR                 (SCD_START_OFFSET + 0xc4)
#define SCD_BAR_DW0             (SCD_START_OFFSET + 0xc8)
#define SCD_BAR_DW1             (SCD_START_OFFSET + 0xcc)

/*
 * Select which queues work in chain mode (1) vs. not (0).
 * Use chain mode to build chains of aggregated frames.
 * Bit fields:
 * 31-16:  Reserved
 * 15-00:  Mode, one bit for each queue -- 1: Chain mode, 0: one-at-a-time
 * NOTE:  If driver sets up queue for chain mode, it should be also set up
 *        Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x).
 */
#define SCD_QUERY_REQ           (SCD_START_OFFSET + 0xd8)
#define SCD_QUERY_RES           (SCD_START_OFFSET + 0xdc)
#define SCD_PENDING_FRAMES      (SCD_START_OFFSET + 0xe0)

/*
 * Select which queues interrupt driver when read pointer (index) increments.
 * Bit fields:
 * 31-16:  Reserved
 * 15-00:  Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled
 * NOTE BMC:  THIS FUNCTIONALITY IS APPARENTLY A NO-OP.
 */
#define SCD_INTERRUPT_THRESHOLD (SCD_START_OFFSET + 0xe8)
#define SCD_QUERY_MIN_FRAME_SIZE        (SCD_START_OFFSET + 0x100)


/*
 * SP internal SRAM structures for scheduler, shared with driver ...
 * Driver should clear and initialize the following areas after receiving
 * "Alive" response from SP uCode, i.e. after initial
 * uCode load, or after a uCode load done for error recovery:
 *
 * SCD_CONTEXT_DATA_OFFSET (size 128 bytes)
 * SCD_TX_STTS_BITMAP_OFFSET (size 256 bytes)
 * SCD_TRANSLATE_TBL_OFFSET (size 32 bytes)
 *
 * Driver reads base address of this scheduler area from SCD_SRAM_BASE_ADDR.
 * All OFFSET values must be added to this base address.
 * Use HBUS_TARG_MEM_* registers to access SRAM.
 */

/*
 * Queue context.  One 8-byte entry for each of 16 queues.
 *
 * Driver should clear this entire area (size 0x80) to 0 after receiving
 * "Alive" notification from uCode.  Additionally, driver should init
 * each queue's entry as follows:
 *
 * LS Dword bit fields:
 *  0-06:  Max Tx window size for Scheduler-ACK.  Driver should init to 64.
 *
 * MS Dword bit fields:
 * 16-22:  Frame limit.  Driver should init to 10 (0xa).
 *
 * Driver should init all other bits to 0.
 *
 * Init must be done after driver receives "Alive" response from SP uCode,
 * and when setting up queue for aggregation.
 */
#define SCD_CONTEXT_DATA_OFFSET         0x380

/*
 * Tx Status Bitmap
 *
 * Driver should clear this entire area (size 0x100) to 0 after receiving
 * "Alive" notification from uCode.  Area is used only by device itself;
 * no other support (besides clearing) is required from driver.
 */
#define SCD_TX_STTS_BITMAP_OFFSET       0x400

/*
 * RAxTID to queue translation mapping.
 *
 * When queue is in Scheduler-ACK mode, frames placed in a that queue must be
 * for only one combination of receiver address (RA) and traffic ID (TID), i.e.
 * one QOS priority level destined for one station (for this link, not final
 * destination).  The SCD_TRANSLATE_TABLE area provides 16 16-bit mappings,
 * one for each of the 16 queues.  If queue is not in Scheduler-ACK mode, the
 * device ignores the mapping value.
 *
 * Bit fields, for each 16-bit map:
 * 15-9:  Reserved, set to 0
 *  8-4:  Index into device's station table for recipient station
 *  3-0:  Traffic ID (tid), range 0-15
 *
 * Driver should clear this entire area (size 32 bytes) to 0 after receiving
 * "Alive" notification from uCode.  To update a 16-bit map value, driver
 * must read a dword-aligned value from device SRAM, replace the 16-bit map
 * value of interest, and write the dword value back into device SRAM.
 */
#define SCD_TRANSLATE_TBL_OFFSET        0x500
#define SCD_CONTEXT_QUEUE_OFFSET(x)     (SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
#define SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
        ((SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)

/*
 * Mask to enable contiguous Tx DMA/FIFO channels between "lo" and "hi".
 */
#define SCD_TXFACT_REG_TXFIFO_MASK(lo, hi) \
        ((1<<(hi))|((1<<(hi))-(1<<(lo))))

#define SCD_MODE_REG_BIT_SEARCH_MODE            (1<<0)
#define SCD_MODE_REG_BIT_SBYP_MODE              (1<<1)

#define SCD_TXFIFO_POS_TID                      (0)
#define SCD_TXFIFO_POS_RA                       (4)
#define SCD_QUEUE_STTS_REG_POS_SCD_ACK          (8)
#define SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN       (10)

#define SCD_QUEUE_RA_TID_MAP_RATID_MSK          (0x01FF)

#define SCD_QUEUE_CTX_REG1_WIN_SIZE_POS         (0)
#define SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK         (0x0000007F)
#define SCD_QUEUE_CTX_REG1_CREDIT_POS           (8)
#define SCD_QUEUE_CTX_REG1_CREDIT_MSK           (0x00FFFF00)
#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_POS     (24)
#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_MSK     (0xFF000000)
#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS      (16)
#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK      (0x007F0000)

#define CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R       (0x00000010)
#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER      (0x00000C00)
#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_EEP_SEM            (0x00200000)
#define IWH_CSR_ANA_PLL_CFG                     (0x00880300)
#define CSR_DBG_HPET_MEM_REG_VAL                (0xFFFF0000)

/* IWH-END */


#define STATISTICS_FLG_CLEAR                            (0x1)
#define STATISTICS_FLG_DISABLE_NOTIFICATION             (0x2)

#define STATISTICS_REPLY_FLG_CLEAR                      (0x1)
#define STATISTICS_REPLY_FLG_BAND_24G_MSK               (0x2)
#define STATISTICS_REPLY_FLG_TGJ_NARROW_BAND_MSK        (0x4)
#define STATISTICS_REPLY_FLG_FAT_MODE_MSK               (0x8)
#define RX_PHY_FLAGS_ANTENNAE_OFFSET                    (4)
#define RX_PHY_FLAGS_ANTENNAE_MASK                      (0x70)

/*
 * Register and values
 */
#define CSR_BASE        (0x0)
#define HBUS_BASE       (0x400)

#define HBUS_TARG_MBX_C (HBUS_BASE+0x030)

/*
 * CSR (control and status registers)
 */
#define CSR_SW_VER              (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_HW_REV      (CSR_BASE+0x028)
#define CSR_EEPROM_REG  (CSR_BASE+0x02c)
#define CSR_EEPROM_GP   (CSR_BASE+0x030)
#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_GIO_CHICKEN_BITS    (CSR_BASE+0x100)
#define CSR_ANA_PLL_CFG         (CSR_BASE+0x20c)
#define CSR_HW_REV_WA_REG       (CSR_BASE+0x22C)
#define CSR_DBG_HPET_MEM_REG    (CSR_BASE+0x240)

/*
 * BSM (Bootstrap State Machine)
 */
#define BSM_BASE                (CSR_BASE + 0x3400)

#define BSM_WR_CTRL_REG         (BSM_BASE + 0x000) /* ctl and status */
#define BSM_WR_MEM_SRC_REG      (BSM_BASE + 0x004) /* source in BSM mem */
#define BSM_WR_MEM_DST_REG      (BSM_BASE + 0x008) /* dest in SRAM mem */
#define BSM_WR_DWCOUNT_REG      (BSM_BASE + 0x00C) /* bytes */
#define BSM_WR_STATUS_REG       (BSM_BASE + 0x010) /* bit 0:  1 == done */

/*
 * BSM special memory, stays powered during power-save sleeps
 */
#define BSM_SRAM_LOWER_BOUND    (CSR_BASE + 0x3800)
#define BSM_SRAM_SIZE           (1024)


/*
 * card static random access memory (SRAM) for processor data and instructs
 */
#define RTC_INST_LOWER_BOUND            (0x00000)
#define ALM_RTC_INST_UPPER_BOUND        (0x14000)

#define RTC_DATA_LOWER_BOUND            (0x800000)
#define ALM_RTC_DATA_UPPER_BOUND        (0x808000)

/*
 * HBUS (Host-side bus)
 */
#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)
#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)
#define HBUS_TARG_WRPTR         (HBUS_BASE+0x060)

/*
 * HW I/F configuration
 */
#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MB     (0x00000100)
#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MM     (0x00000200)
#define CSR_HW_IF_CONFIG_REG_BIT_SKU_MRC        (0x00000400)
#define CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE     (0x00000800)
#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A        (0x00000000)
#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B        (0x00001000)
#define CSR_HW_IF_CONFIG_REG_BITS_NIC_READY             (0x00400000)
#define CSR_HW_IF_CONFIG_REG_BITS_HAP_WAKE_L1A          (0x00080000)
#define CSR_HW_IF_CONFIG_REG_BITS_NIC_PREPARE_DONE      (0x02000000)
#define CSR_HW_IF_CONFIG_REG_BITS_PREPARE               (0x08000000)

#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_GPIO_IN_BIT_AUX_POWER       (0x00000200)
#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC    (0x00000000)
#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX  (0x00800000)
#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER  (0x20000000)
#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC   CSR_GPIO_IN_BIT_AUX_POWER

#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT     (0x80000000)

/*
 * interrupt flags in INTA, set by uCode or hardware (e.g. dma),
 * acknowledged (reset) by host writing "1" to flagged bits.
 */
#define BIT_INT_FH_RX \
        (((uint32_t)1) << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
#define BIT_INT_ERR     (1<<29) /* DMA hardware error FH_INT[31] */
#define BIT_INT_FH_TX   (1<<27) /* Tx DMA FH_INT[1:0] */
#define BIT_INT_MAC_CLK_ACTV (1<<26) /* NIC controller's clock toggled on/off */
#define BIT_INT_SWERROR (1<<25) /* uCode error */
#define BIT_INT_RF_KILL (1<<7)  /* HW RFKILL switch GP_CNTRL[27] toggled */
#define BIT_INT_CT_KILL (1<<6)  /* Critical temp (chip too hot) rfkill */
#define BIT_INT_SW_RX   (1<<3)  /* Rx, command responses, 3945 */
#define BIT_INT_WAKEUP  (1<<1)  /* NIC controller waking up (pwr mgmt) */
#define BIT_INT_ALIVE   (1<<0)  /* uCode interrupts once it initializes */

#define CSR_INI_SET_MASK        (BIT_INT_FH_RX   |  \
                                BIT_INT_ERR |      \
                                BIT_INT_FH_TX   |  \
                                BIT_INT_SWERROR |  \
                                BIT_INT_RF_KILL |  \
                                BIT_INT_SW_RX   |  \
                                BIT_INT_WAKEUP  |  \
                                BIT_INT_ALIVE)

/*
 * interrupt flags in FH (flow handler) (PCI busmaster DMA)
 */
#define BIT_FH_INT_ERR          (((uint32_t)1) << 31) /* Error */
#define BIT_FH_INT_HI_PRIOR     (1<<30) /* High priority Rx,bypass coalescing */
#define BIT_FH_INT_RX_CHNL2     (1<<18) /* Rx channel 2 (3945 only) */
#define BIT_FH_INT_RX_CHNL1     (1<<17) /* Rx channel 1 */
#define BIT_FH_INT_RX_CHNL0     (1<<16) /* Rx channel 0 */
#define BIT_FH_INT_TX_CHNL6     (1<<6)  /* Tx channel 6 (3945 only) */
#define BIT_FH_INT_TX_CHNL1     (1<<1)  /* Tx channel 1 */
#define BIT_FH_INT_TX_CHNL0     (1<<0)  /* Tx channel 0 */

#define FH_INT_RX_MASK          (BIT_FH_INT_HI_PRIOR |  \
                                BIT_FH_INT_RX_CHNL1 |  \
                                BIT_FH_INT_RX_CHNL0)

#define FH_INT_TX_MASK          (BIT_FH_INT_TX_CHNL6 |  \
                                BIT_FH_INT_TX_CHNL1 |  \
                                BIT_FH_INT_TX_CHNL0)

/*
 * 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)

/*
 * GP (general purpose) CONTROL
 */
#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_VAL_MAC_ACCESS_EN      (0x00000001)

#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE    (0x07000000)
#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE    (0x04000000)
#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW     (0x08000000)

/*
 * APMG (power management) constants
 */
#define APMG_CLK_CTRL_REG       (0x003000)
#define ALM_APMG_CLK_EN         (0x003004)
#define ALM_APMG_CLK_DIS        (0x003008)
#define ALM_APMG_PS_CTL         (0x00300c)
#define ALM_APMG_PCIDEV_STT     (0x003010)
#define ALM_APMG_RFKILL         (0x003014)
#define ALM_APMG_LARC_INT       (0x00301c)
#define ALM_APMG_LARC_INT_MSK   (0x003020)

#define APMG_CLK_REG_VAL_DMA_CLK_RQT    (0x00000200)
#define APMG_CLK_REG_VAL_BSM_CLK_RQT    (0x00000800)

#define APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ    (0x04000000)

#define APMG_DEV_STATE_REG_VAL_L1_ACTIVE_DISABLE        (0x00000800)

#define APMG_PS_CTRL_REG_MSK_POWER_SRC          (0x03000000)
#define APMG_PS_CTRL_REG_VAL_POWER_SRC_VMAIN    (0x00000000)
#define APMG_PS_CTRL_REG_VAL_POWER_SRC_VAUX     (0x01000000)

/*
 * BSM (bootstrap state machine)
 */
/*
 * start boot load now
 */
#define BSM_WR_CTRL_REG_BIT_START       (0x80000000)
/*
 * enable boot after power up
 */
#define BSM_WR_CTRL_REG_BIT_START_EN    (0x40000000)

/*
 * DBM
 */
#define ALM_FH_SRVC_CHNL                                (6)
#define IWH_FH_SRVC_LOWER_BOUND         (IWH_FH_REGS_LOWER_BOUND + 0x9C8)
#define IWH_FH_SRVC_CHNL                (9)


#define IWH_FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl)\
        (IWH_FH_SRVC_LOWER_BOUND + (_chnl - 9) * 0x4)

#define ALM_FH_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE         (20)
#define ALM_FH_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH          (4)

#define ALM_FH_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN                (0x08000000)
#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE        (0x80000000)
#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE           (0x20000000)
#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128         (0x01000000)
#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST         (0x00001000)
#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH               (0x00000000)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF              (0x00000000)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER           (0x00000001)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL    (0x00000000)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL     (0x00000008)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD           (0x00200000)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT            (0x00000000)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE            (0x00000000)
#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE           (0x80000000)
#define ALM_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID          (0x00004000)
#define ALM_FH_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR           (0x00000001)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON      (0xFF000000)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON      (0x00FF0000)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B    (0x00000400)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON       (0x00000100)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON       (0x00000080)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH     (0x00000020)
#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH           (0x00000005)

#define ALM_TB_MAX_BYTES_COUNT  (0xFFF0)

#define ALM_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_channel) \
        ((1LU << _channel) << 24)
#define ALM_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_channel) \
        ((1LU << _channel) << 16)

#define ALM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_channel) \
        (ALM_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_channel) | \
        ALM_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_channel))
#define PCI_CFG_REV_ID_BIT_BASIC_SKU    (0x40)  /* bit 6 */
#define PCI_CFG_REV_ID_BIT_RTP          (0x80)  /* bit 7 */
#define PCI_CFG_RETRY_TIMEOUT           (0x41)

#define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED     (0x00000004)

#define TFD_QUEUE_MIN           0
#define TFD_QUEUE_MAX           6
#define TFD_QUEUE_SIZE_MAX      (256)

/*
 * spectrum and channel data structures
 */
#define IWH_NUM_SCAN_RATES      (2)

#define IWH_SCAN_FLAG_24GHZ  (1<<0)
#define IWH_SCAN_FLAG_52GHZ  (1<<1)
#define IWH_SCAN_FLAG_ACTIVE (1<<2)
#define IWH_SCAN_FLAG_DIRECT (1<<3)

#define IWH_MAX_CMD_SIZE 1024

#define IWH_DEFAULT_TX_RETRY    15
#define IWH_MAX_TX_RETRY        16

#define RFD_SIZE        4
#define NUM_TFD_CHUNKS  4

#define RX_QUEUE_SIZE           256
#define RX_QUEUE_SIZE_LOG       8

/*
 * TX Queue Flag Definitions
 */
/*
 * use short preamble
 */
#define DCT_FLAG_LONG_PREAMBLE  0x00
#define DCT_FLAG_SHORT_PREAMBLE 0x04

/*
 * ACK rx is expected to follow
 */
#define DCT_FLAG_ACK_REQD               0x80

#define IWH_MB_DISASSOCIATE_THRESHOLD_DEFAULT   24
#define IWH_MB_ROAMING_THRESHOLD_DEFAULT                8
#define IWH_REAL_RATE_RX_PACKET_THRESHOLD               300

/*
 * QoS  definitions
 */

#define AC_NUM          (4)     /* the number of access category */

/*
 * index of every AC in firmware
 */
#define QOS_AC_BK       (0)
#define QOS_AC_BE       (1)
#define QOS_AC_VI       (2)
#define QOS_AC_VO       (3)
#define QOS_AC_INVALID  (-1)

#define QOS_CW_RANGE_MIN        (0)     /* exponential of 2 */
#define QOS_CW_RANGE_MAX        (15)    /* exponential of 2 */
#define QOS_TXOP_MIN            (0)     /* unit of 32 microsecond */
#define QOS_TXOP_MAX            (255)   /* unit of 32 microsecond */
#define QOS_AIFSN_MIN           (2)
#define QOS_AIFSN_MAX           (15)    /* undefined */

/*
 * masks for flags of QoS parameter command
 */
#define QOS_PARAM_FLG_UPDATE_EDCA       (0x01)
#define QOS_PARAM_FLG_TGN               (0x02)

/*
 * index of TX queue for every AC
 */
#define QOS_AC_BK_TO_TXQ        (3)
#define QOS_AC_BE_TO_TXQ        (2)
#define QOS_AC_VI_TO_TXQ        (1)
#define QOS_AC_VO_TO_TXQ        (0)
#define TXQ_FOR_AC_MIN          (0)
#define TXQ_FOR_AC_MAX          (3)
#define TXQ_FOR_AC_INVALID      (-1)
#define NON_QOS_TXQ             QOS_AC_BE_TO_TXQ
#define QOS_TXQ_FOR_MGT         QOS_AC_VO_TO_TXQ

#define WME_TID_MIN     (0)
#define WME_TID_MAX     (7)
#define WME_TID_INVALID (-1)

/*
 * HT definitions
 */

/*
 * HT capabilities masks
 */
#define HT_CAP_SUP_WIDTH        (0x0002)
#define HT_CAP_MIMO_PS          (0x000c)
#define HT_CAP_GRN_FLD          (0x0010)
#define HT_CAP_SGI_20           (0x0020)
#define HT_CAP_SGI_40           (0x0040)
#define HT_CAP_DELAY_BA         (0x0400)
#define HT_CAP_MAX_AMSDU        (0x0800)
#define HT_CAP_MCS_TX_DEFINED   (0x01)
#define HT_CAP_MCS_TX_RX_DIFF   (0x02)
#define HT_CAP_MCS_TX_STREAMS   (0x0c)
#define HT_CAP_MCS_TX_UEQM      (0x10)

#define HT_CAP_MIMO_PS_STATIC   (0)
#define HT_CAP_MIMO_PS_DYNAMIC  (1)
#define HT_CAP_MIMO_PS_INVALID  (2)
#define HT_CAP_MIMO_PS_NONE     (3)

#define HT_RX_AMPDU_FACTOR_8K   (0x0)
#define HT_RX_AMPDU_FACTOR_16K  (0x1)
#define HT_RX_AMPDU_FACTOR_32K  (0x2)
#define HT_RX_AMPDU_FACTOR_64K  (0x3)
#define HT_RX_AMPDU_FACTOR      HT_RX_AMPDU_FACTOR_8K
#define HT_RX_AMPDU_FACTOR_MSK  (0x3)

#define HT_MPDU_DENSITY_4USEC   (0x5)
#define HT_MPDU_DENSITY_8USEC   (0x6)
#define HT_MPDU_DENSITY         HT_MPDU_DENSITY_4USEC
#define HT_MPDU_DENSITY_MSK     (0x1c)
#define HT_MPDU_DENSITY_POS     (2)

#define HT_RATESET_NUM          (16)
#define HT_1CHAIN_RATE_MIN_IDX  (0x0)
#define HT_1CHAIN_RATE_MAX_IDX  (0x7)
#define HT_2CHAIN_RATE_MIN_IDX  (0x8)
#define HT_2CHAIN_RATE_MAX_IDX  (0xf)

struct iwh_ampdu_param {
        uint8_t factor;
        uint8_t density;
};

typedef struct iwh_ht_conf {
        uint8_t                 ht_support;
        uint16_t                cap;
        struct iwh_ampdu_param  ampdu_p;
        uint8_t                 tx_support_mcs[HT_RATESET_NUM];
        uint8_t                 rx_support_mcs[HT_RATESET_NUM];
        uint8_t                 valid_chains;
        uint8_t                 tx_stream_count;
        uint8_t                 rx_stream_count;
        uint8_t                 ht_protection;
} iwh_ht_conf_t;

#define NO_HT_PROT              (0)
#define HT_PROT_CHAN_NON_HT     (1)
#define HT_PROT_FAT             (2)
#define HT_PROT_ASSOC_NON_HT    (3)

/*
 * HT flags for RXON command.
 */
#define RXON_FLG_CONTROL_CHANNEL_LOCATION_MSK   0x400000
#define RXON_FLG_CONTROL_CHANNEL_LOC_LOW_MSK    0x000000
#define RXON_FLG_CONTROL_CHANNEL_LOC_HIGH_MSK   0x400000

#define RXON_FLG_HT_OPERATING_MODE_POS          (23)
#define RXON_FLG_HT_PROT_MSK                    0x800000
#define RXON_FLG_FAT_PROT_MSK                   0x1000000

#define RXON_FLG_CHANNEL_MODE_POS               (25)
#define RXON_FLG_CHANNEL_MODE_MSK               0x06000000
#define RXON_FLG_CHANNEL_MODE_LEGACY_MSK        0x00000000
#define RXON_FLG_CHANNEL_MODE_PURE_40_MSK       0x02000000
#define RXON_FLG_CHANNEL_MODE_MIXED_MSK         0x04000000

#define RXON_RX_CHAIN_DRIVER_FORCE_MSK          (0x1<<0)
#define RXON_RX_CHAIN_VALID_MSK                 (0x7<<1)
#define RXON_RX_CHAIN_VALID_POS                 (1)
#define RXON_RX_CHAIN_FORCE_SEL_MSK             (0x7<<4)
#define RXON_RX_CHAIN_FORCE_SEL_POS             (4)
#define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK        (0x7<<7)
#define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS        (7)
#define RXON_RX_CHAIN_CNT_MSK                   (0x3<<10)
#define RXON_RX_CHAIN_CNT_POS                   (10)
#define RXON_RX_CHAIN_MIMO_CNT_MSK              (0x3<<12)
#define RXON_RX_CHAIN_MIMO_CNT_POS              (12)
#define RXON_RX_CHAIN_MIMO_FORCE_MSK            (0x1<<14)
#define RXON_RX_CHAIN_MIMO_FORCE_POS            (14)
#define RXON_RX_CHAIN_A_MSK                     (1)
#define RXON_RX_CHAIN_B_MSK                     (2)
#define RXON_RX_CHAIN_C_MSK                     (4)

/*
 * Generic queue structure
 *
 * Contains common data for Rx and Tx queues
 */
#define TFD_CTL_COUNT_SET(n)    (n<<24)
#define TFD_CTL_COUNT_GET(ctl)  ((ctl>>24) & 7)
#define TFD_CTL_PAD_SET(n)      (n<<28)
#define TFD_CTL_PAD_GET(ctl)    (ctl>>28)

#define TFD_TX_CMD_SLOTS 64
#define TFD_CMD_SLOTS 32

/*
 * Tx/Rx Queues
 *
 * Most communication between driver and SP is via queues of data buffers.
 * For example, all commands that the driver issues to device's embedded
 * controller (uCode) are via the command queue (one of the Tx queues).  All
 * uCode command responses/replies/notifications, including Rx frames, are
 * conveyed from uCode to driver via the Rx queue.
 *
 * Most support for these queues, including handshake support, resides in
 * structures in host DRAM, shared between the driver and the device.  When
 * allocating this memory, the driver must make sure that data written by
 * the host CPU updates DRAM immediately (and does not get "stuck" in CPU's
 * cache memory), so DRAM and cache are consistent, and the device can
 * immediately see changes made by the driver.
 *
 * SP supports up to 16 DRAM-based Tx queues, and services these queues via
 * up to 7 DMA channels (FIFOs).  Each Tx queue is supported by a circular array
 * in DRAM containing 256 Transmit Frame Descriptors (TFDs).
 */
#define IWH_MAX_WIN_SIZE        64
#define IWH_QUEUE_SIZE  256
#define IWH_NUM_FIFOS   7
#define IWH_NUM_QUEUES  20
#define IWH_CMD_QUEUE_NUM       4
#define IWH_KW_SIZE 0x1000      /* 4k */
#define IWH_CMD_FIFO_NUM        7

struct iwh_rate {
        union {
                struct {
                        uint8_t rate;
                        uint8_t flags;
                        uint16_t ext_flags;
                } s;
                uint32_t rate_n_flags;
        } r;
};

struct iwh_dram_scratch {
        uint8_t try_cnt;
        uint8_t bt_kill_cnt;
        uint16_t reserved;
};


struct iwh_tx_power {
        uint8_t tx_gain;        /* gain for analog radio */
        uint8_t dsp_atten;      /* gain for DSP */
};


union iwh_tx_power_triple_stream {
        struct {
                uint8_t radio_tx_gain[3];
                uint8_t reserved1;
                uint8_t dsp_predis_atten[3];
                uint8_t reserved2;
        }s;
        uint32_t val1;
        uint32_t val2;
};

struct iwh_tx_power_db {
        union   iwh_tx_power_triple_stream ht_ofdm_power[24];
        union   iwh_tx_power_triple_stream cck_power[2];
};

typedef struct iwh_tx_power_table_cmd {
        uint8_t band;
        uint8_t pa_measurements;
        uint8_t channel;
        uint8_t max_mcs;
        struct iwh_tx_power_db  db;
} iwh_tx_power_table_cmd_t;

/*
 * Hardware rate scaling set by iwh_ap_lq function.
 * Given a particular initial rate and mode, the driver uses the
 * following formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM]
 * rate table in the Link Quality command:
 *
 * 1) If using High-throughput(HT)(SISO or MIMO) initial rate:
 *    a) Use this same initial rate for first 3 entries.
 *    b) Find next lower available rate using same mode(SISO or MIMO),
 *       use for next 3 entries. If no lower rate available, switch to
 *       legacy mode(no FAT channel, no MIMO, no short guard interval).
 *    c) If using MIMO, set command's mimo_delimeter to number of
 *       entries using MIMO(3 or 6).
 *    d) After trying 2 HT rates, switch to legacy mode(no FAT channel,
 *       no MIMO, no short qguard 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.
 *    b) Once lowest available rate is reached, repreat this rate until
 *   rate table is filled(16 entries),switching antenna each entry.
 */

/*
 * OFDM HT rate masks
 */
#define R_MCS_6M_MSK 0x1
#define R_MCS_12M_MSK 0x2
#define R_MCS_18M_MSK 0x4
#define R_MCS_24M_MSK 0x8
#define R_MCS_36M_MSK 0x10
#define R_MCS_48M_MSK 0x20
#define R_MCS_54M_MSK 0x40
#define R_MCS_60M_MSK 0x80
#define R_MCS_12M_DUAL_MSK 0x100
#define R_MCS_24M_DUAL_MSK 0x200
#define R_MCS_36M_DUAL_MSK 0x400
#define R_MCS_48M_DUAL_MSK 0x800

#define RATE_MCS_CODE_MSK 0x7
#define RATE_MCS_MIMO_POS 3
#define RATE_MCS_MIMO_MSK 0x8
#define RATE_MCS_HT_DUP_POS 5
#define RATE_MCS_HT_DUP_MSK 0x20
#define RATE_MCS_FLAGS_POS 8
#define RATE_MCS_HT_POS 8
#define RATE_MCS_HT_MSK 0x100
#define RATE_MCS_CCK_POS 9
#define RATE_MCS_CCK_MSK 0x200
#define RATE_MCS_GF_POS 10
#define RATE_MCS_GF_MSK 0x400

#define RATE_MCS_FAT_POS 11
#define RATE_MCS_FAT_MSK 0x800
#define RATE_MCS_DUP_POS 12
#define RATE_MCS_DUP_MSK 0x1000
#define RATE_MCS_SGI_POS 13
#define RATE_MCS_SGI_MSK 0x2000

#define EEPROM_SEM_TIMEOUT 10
#define EEPROM_SEM_RETRY_LIMIT 1000

/*
 * Antenna masks:
 * bit14:15 01 B inactive, A active
 *          10 B active, A inactive
 *          11 Both active
 */
#define RATE_MCS_ANT_A_POS      14
#define RATE_MCS_ANT_B_POS      15
#define RATE_MCS_ANT_A_MSK      0x4000
#define RATE_MCS_ANT_B_MSK      0x8000
#define RATE_MCS_ANT_AB_MSK     0xc000

#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
#define is_siso(tbl) (((tbl) == LQ_SISO))
#define is_mimo(tbl) (((tbl) == LQ_MIMO))
#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
#define is_a_band(tbl) (((tbl) == LQ_A))
#define is_g_and(tbl) (((tbl) == LQ_G))

/*
 * RS_NEW_API: only TLC_RTS remains and moved to bit 0
 */
#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK     (1<<0)

#define LINK_QUAL_AC_NUM 4
#define LINK_QUAL_MAX_RETRY_NUM 16

#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 iwh_link_qual_general_params {
        uint8_t flags;
        uint8_t mimo_delimiter;
        uint8_t single_stream_ant_msk;
        uint8_t dual_stream_ant_msk;
        uint8_t start_rate_index[LINK_QUAL_AC_NUM];
};

struct iwh_link_qual_agg_params {
        uint16_t agg_time_limit;
        uint8_t agg_dis_start_th;
        uint8_t agg_frame_cnt_limit;
        uint32_t reserved;
};

typedef struct iwh_link_quality_cmd {
        uint8_t sta_id;
        uint8_t reserved1;
        uint16_t control;
        struct iwh_link_qual_general_params general_params;
        struct iwh_link_qual_agg_params agg_params;
        uint32_t rate_n_flags[LINK_QUAL_MAX_RETRY_NUM];
        uint32_t reserved2;
} iwh_link_quality_cmd_t;

struct  iwh_rx_mpdu_body_size {
        uint16_t        byte_count;
        uint16_t        reserved;
};

typedef struct iwh_rx_phy_res {
        uint8_t non_cfg_phy_cnt;  /* non configurable DSP phy data byte count */
        uint8_t cfg_phy_cnt;    /* configurable DSP phy data byte count */
        uint8_t stat_id;        /* configurable DSP phy data set ID */
        uint8_t reserved1;
        uint32_t timestampl; /* TSF at on air rise */
        uint32_t timestamph;
        uint32_t beacon_time_stamp; /* beacon at on-air rise */
        uint16_t phy_flags;     /* general phy flags: band, modulation, ... */
        uint16_t channel;               /* channel number */
        /* for various implementations of non_cfg_phy */
        uint8_t  non_cfg_phy[32];
        struct iwh_rate rate;   /* rate in ucode internal format */
        uint16_t byte_count;            /* frame's byte-count */
        uint16_t reserved3;
} iwh_rx_phy_res_t;

struct iwh_rx_mpdu_res_start {
        uint16_t byte_count;
        uint16_t reserved;
};

#define IWH_AGC_DB_MASK         (0x3f80)        /* MASK(7,13) */
#define IWH_AGC_DB_POS  (7)

#define IWH_RX_RES_PHY_CNT      (8)
#define IWH_RX_RES_AGC_IDX      (1)
#define IWH_RX_RES_RSSI_AB_IDX  (2)
#define IWH_RX_RES_RSSI_C_IDX   (3)
#define IWH_OFDM_AGC_MSK        (0xFE00)
#define IWH_OFDM_AGC_BIT_POS    (9)
#define IWH_OFDM_RSSI_A_MSK     (0x00FF)
#define IWH_OFDM_RSSI_A_BIT_POS (0)
#define IWH_OFDM_RSSI_B_MSK     (0xFF0000)
#define IWH_OFDM_RSSI_B_BIT_POS (16)
#define IWH_OFDM_RSSI_C_MSK     (0x00FF)
#define IWH_OFDM_RSSI_C_BIT_POS (0)
#define IWH_RSSI_OFFSET         (44)

/*
 * Fixed (non-configurable) rx data from phy
 */
struct iwh_rx_non_cfg_phy {
        uint32_t non_cfg_phy[IWH_RX_RES_PHY_CNT];       /* upto 8 phy entries */
};

/*
 * Byte Count Table Entry
 *
 * Bit fields:
 * 15-12: reserved
 * 11- 0: total to-be-transmitted byte count of frame (does not include command)
 */
struct iwh_queue_byte_cnt_entry {
        uint16_t val;
};

/*
 * Byte Count table
 *
 * Each Tx queue uses a byte-count table containing 320 entries:
 * one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that
 * duplicate the first 64 entries (to avoid wrap-around within a Tx window;
 * max Tx window is 64 TFDs).
 *
 * When driver sets up a new TFD, it must also enter the total byte count
 * of the frame to be transmitted into the corresponding entry in the byte
 * count table for the chosen Tx queue.  If the TFD index is 0-63, the driver
 * must duplicate the byte count entry in corresponding index 256-319.
 *
 * "dont_care" padding puts each byte count table on a 1024-byte boundary;
 * SP assumes tables are separated by 1024 bytes.
 */
struct iwh_sched_queue_byte_cnt_tbl {
        struct iwh_queue_byte_cnt_entry tfd_offset[IWH_QUEUE_SIZE +
            IWH_MAX_WIN_SIZE];
};

/*
 * struct iwh_shared, handshake area for Tx and Rx
 *
 * For convenience in allocating memory, this structure combines 2 areas of
 * DRAM which must be shared between driver and SP.  These do not need to
 * be combined, if better allocation would result from keeping them separate:
 * TODO:  Split these; carried over from 3945, doesn't work well for SP.
 *
 * 1)  The Tx byte count tables occupy 1024 bytes each (16 KBytes total for
 *     16 queues).  Driver uses SCD_DRAM_BASE_ADDR to tell SP where to find
 *     the first of these tables.  SP assumes tables are 1024 bytes apart.
 *
 * 2)  The Rx status (val0 and val1) occupies only 8 bytes.  Driver uses
 *     FH_RSCSR_CHNL0_STTS_WPTR_REG to tell SP where to find this area.
 *     Driver reads val0 to determine the latest Receive Buffer Descriptor (RBD)
 *     that has been filled by the SP.
 *
 * Bit fields val0:
 * 31-12:  Not used
 * 11- 0:  Index of last filled Rx buffer descriptor (SP writes, driver reads)
 *
 * Bit fields val1:
 * 31- 0:  Not used
 */
typedef struct iwh_shared {
        struct iwh_sched_queue_byte_cnt_tbl
            queues_byte_cnt_tbls[IWH_NUM_QUEUES];
        uint32_t val0;
        uint32_t val1;
        uint32_t padding1;  /* so that allocation will be aligned to 16B */
        uint32_t padding2;
} iwh_shared_t;


/*
 * struct iwh_tfd_frame_data
 *
 * Describes up to 2 buffers containing (contiguous) portions of a Tx frame.
 * Each buffer must be on dword boundary.
 * Up to 10 iwh_tfd_frame_data structures, describing up to 20 buffers,
 * may be filled within a TFD (iwh_tfd_frame).
 *
 * Bit fields in tb1_addr:
 * 31- 0: Tx buffer 1 address bits [31:0]
 *
 * Bit fields in val1:
 * 31-16: Tx buffer 2 address bits [15:0]
 * 15- 4: Tx buffer 1 length (bytes)
 *  3- 0: Tx buffer 1 address bits [32:32]
 *
 * Bit fields in val2:
 * 31-20: Tx buffer 2 length (bytes)
 * 19- 0: Tx buffer 2 address bits [35:16]
 */
struct iwh_tfd_frame_data {
                uint32_t tb1_addr;
                uint32_t val1;
                uint32_t val2;
};

typedef struct iwh_tx_desc {
        uint32_t        val0;
        struct iwh_tfd_frame_data pa[10];
        uint32_t reserved;
} iwh_tx_desc_t;

struct  agg_tx_status {
        uint16_t        status;
        uint16_t        sequence;
};

typedef struct iwh_tx_stat {
        uint8_t         frame_count;
        uint8_t         bt_kill_count;
        uint8_t         nrts;
        uint8_t         ntries;
        struct iwh_rate rate;
        uint16_t        duration;
        uint16_t        reserved;
        uint32_t        pa_power1;
        uint32_t        pa_power2;
        uint32_t        tfd_info;
        uint16_t        seq_ctl;
        uint16_t        byte_cnt;
        uint32_t        tlc_info;
        struct  agg_tx_status   status;
} iwh_tx_stat_t;

struct iwh_cmd_header {
        uint8_t         type;
        uint8_t         flags;
        uint8_t         idx;
        uint8_t         qid;
};

typedef struct iwh_rx_desc {
        uint32_t        len;
        struct iwh_cmd_header hdr;
} iwh_rx_desc_t;

typedef struct iwh_rx_stat {
        uint8_t         len;
        uint8_t         id;
        uint8_t         rssi;   /* received signal strength */
        uint8_t         agc;    /* access gain control */
        uint16_t        signal;
        uint16_t        noise;
} iwh_rx_stat_t;

typedef struct iwh_rx_head {
        uint16_t        chan;
        uint16_t        flags;
        uint8_t         reserved;
        uint8_t         rate;
        uint16_t        len;
} iwh_rx_head_t;

typedef struct iwh_rx_tail {
        uint32_t        flags;
        uint32_t        timestampl;
        uint32_t        timestamph;
        uint32_t        tbeacon;
} iwh_rx_tail_t;

enum {
        IWH_AP_ID = 0,
        IWH_MULTICAST_ID,
        IWH_STA_ID,
        IWH_BROADCAST_ID = 15,
        IWH_STATION_COUNT = 16,
        IWH_INVALID_STATION
};

/*
 * key flags
 */
enum {
        STA_KEY_FLG_ENCRYPT_MSK = 0x7,
        STA_KEY_FLG_NO_ENC = 0x0,
        STA_KEY_FLG_WEP = 0x1,
        STA_KEY_FLG_CCMP = 0x2,
        STA_KEY_FLG_TKIP = 0x3,

        STA_KEY_FLG_KEYID_POS = 8,
        STA_KEY_FLG_INVALID = 0x0800,
};

/*
 * modify flags
 */
enum {
        STA_MODIFY_KEY_MASK = 0x01,
        STA_MODIFY_TID_DISABLE_TX = 0x02,
        STA_MODIFY_TX_RATE_MSK = 0x04
};

enum {
        RX_RES_STATUS_NO_CRC32_ERROR = (1 << 0),
        RX_RES_STATUS_NO_RXE_OVERFLOW = (1 << 1),
};

enum {
        RX_RES_PHY_FLAGS_BAND_24_MSK = (1 << 0),
        RX_RES_PHY_FLAGS_MOD_CCK_MSK = (1 << 1),
        RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK = (1 << 2),
        RX_RES_PHY_FLAGS_NARROW_BAND_MSK = (1 << 3),
        RX_RES_PHY_FLAGS_ANTENNA_MSK = 0xf0,

        RX_RES_STATUS_SEC_TYPE_MSK = (0x7 << 8),
        RX_RES_STATUS_SEC_TYPE_NONE = (STA_KEY_FLG_NO_ENC << 8),
        RX_RES_STATUS_SEC_TYPE_WEP = (STA_KEY_FLG_WEP << 8),
        RX_RES_STATUS_SEC_TYPE_TKIP = (STA_KEY_FLG_TKIP << 8),
        RX_RES_STATUS_SEC_TYPE_CCMP = (STA_KEY_FLG_CCMP << 8),

        RX_RES_STATUS_DECRYPT_TYPE_MSK = (0x3 << 11),
        RX_RES_STATUS_NOT_DECRYPT = (0x0 << 11),
        RX_RES_STATUS_DECRYPT_OK = (0x3 << 11),
        RX_RES_STATUS_BAD_ICV_MIC = (0x1 << 11),
        RX_RES_STATUS_BAD_KEY_TTAK = (0x2 << 11),
};

enum {
        REPLY_ALIVE = 0x1,
        REPLY_ERROR = 0x2,

        /* RXON state 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,

        /* RX, TX */

        REPLY_TX = 0x1c,

        /* timers commands */
        REPLY_BCON = 0x27,

        REPLY_SHUTDOWN = 0x40,

        /* MISC commands */
        REPLY_RATE_SCALE = 0x47,
        REPLY_LEDS_CMD = 0x48,
        REPLY_TX_LINK_QUALITY_CMD = 0x4e,

        COEX_PRIORITY_TABLE_CMD = 0x5a,
        CALIBRATION_CFG_CMD = 0x65,
        CALIBRATION_RES_NOTIFICATION = 0x66,
        CALIBRATION_COMPLETE_NOTIFICATION = 0x67,

        /* 802.11h related */
        RADAR_NOTIFICATION = 0x70,
        REPLY_QUIET_CMD = 0x71,
        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,

        QUIET_NOTIFICATION = 0x96,
        REPLY_TX_PWR_TABLE_CMD = 0x97,
        MEASURE_ABORT_NOTIFICATION = 0x99,

        REPLY_CALIBRATION_TUNE = 0x9a,

        /* BT config command */
        REPLY_BT_CONFIG = 0x9b,
        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,
        MISSED_BEACONS_NOTIFICATION_TH_CMD = 0xa3,

        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_SP_RX = 0xc3,
        REPLY_COMPRESSED_BA = 0xc5,
        REPLY_MAX = 0xff
};

typedef struct iwh_cmd {
        struct iwh_cmd_header hdr;
        uint8_t data[1024];
} iwh_cmd_t;

/*
 * Alive Command & Response
 */
#define UCODE_VALID_OK          (0x1)
#define INITIALIZE_SUBTYPE      (9)

struct iwh_alive_resp {
        uint8_t ucode_minor;
        uint8_t ucode_major;
        uint16_t reserved1;
        uint8_t sw_rev[8];
        uint8_t ver_type;
        uint8_t ver_subtype;
        uint16_t reserved2;
        uint32_t log_event_table_ptr;
        uint32_t error_event_table_ptr;
        uint32_t timestamp;
        uint32_t is_valid;
};

struct iwh_init_alive_resp {
        struct iwh_alive_resp s;
        /* calibration values from "initialize" uCode */
        uint32_t voltage;       /* signed */
        uint32_t therm_r1[2];   /* signed 1st for normal, 2nd for FAT channel */
        uint32_t therm_r2[2];   /* signed */
        uint32_t therm_r3[2];   /* signed */
        uint32_t therm_r4[2];   /* signed */
                /*
                 * signed MIMO gain comp, 5 freq groups, 2 Tx chains
                 */
        uint32_t tx_atten[5][2];
};

/*
 * 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,
};

/*
 * rx_config flags
 */
enum {
        /* band & modulation selection */
        RXON_FLG_BAND_24G_MSK = (1 << 0),
        RXON_FLG_CCK_MSK = (1 << 1),
        /* auto detection enable */
        RXON_FLG_AUTO_DETECT_MSK = (1 << 2),
        /* TGg protection when tx */
        RXON_FLG_TGG_PROTECT_MSK = (1 << 3),
        /* cck short slot & preamble */
        RXON_FLG_SHORT_SLOT_MSK = (1 << 4),
        RXON_FLG_SHORT_PREAMBLE_MSK = (1 << 5),
        /* antenna selection */
        RXON_FLG_DIS_DIV_MSK = (1 << 7),
        RXON_FLG_ANT_SEL_MSK = 0x0f00,
        RXON_FLG_ANT_A_MSK = (1 << 8),
        RXON_FLG_ANT_B_MSK = (1 << 9),
        /* radar detection enable */
        RXON_FLG_RADAR_DETECT_MSK = (1 << 12),
        RXON_FLG_TGJ_NARROW_BAND_MSK = (1 << 13),
        /*
         * rx response to host with 8-byte TSF
         * (according to ON_AIR deassertion)
         */
        RXON_FLG_TSF2HOST_MSK = (1 << 15),
        RXON_FLG_DIS_ACQUISITION = (1 << 27),
        RXON_FLG_DIS_RE_ACQUISITION = (1 << 28),
        RXON_FLG_DIS_BEAMFORM = (1 << 29)
};

/*
 * rx_config filter flags
 */
enum {
        /* accept all data frames */
        RXON_FILTER_PROMISC_MSK = (1 << 0),
        /* pass control & management to host */
        RXON_FILTER_CTL2HOST_MSK = (1 << 1),
        /* accept multi-cast */
        RXON_FILTER_ACCEPT_GRP_MSK = (1 << 2),
        /* don't decrypt uni-cast frames */
        RXON_FILTER_DIS_DECRYPT_MSK = (1 << 3),
        /* don't decrypt multi-cast frames */
        RXON_FILTER_DIS_GRP_DECRYPT_MSK = (1 << 4),
        /* STA is associated */
        RXON_FILTER_ASSOC_MSK = (1 << 5),
        /* transfer to host non bssid beacons in associated state */
        RXON_FILTER_BCON_AWARE_MSK = (1 << 6)
};


/*
 * structure for RXON Command & Response
 */
typedef struct iwh_rxon_cmd {
        uint8_t         node_addr[IEEE80211_ADDR_LEN];
        uint16_t        reserved1;
        uint8_t         bssid[IEEE80211_ADDR_LEN];
        uint16_t        reserved2;
        uint8_t         wlap_bssid[IEEE80211_ADDR_LEN];
        uint16_t        reserved3;
        uint8_t         dev_type;
        uint8_t         air_propagation;
        uint16_t        rx_chain;
        uint8_t         ofdm_basic_rates;
        uint8_t         cck_basic_rates;
        uint16_t        assoc_id;
        uint32_t        flags;
        uint32_t        filter_flags;
        uint16_t        chan;
        uint8_t         ofdm_ht_single_stream_basic_rates;
        uint8_t         ofdm_ht_dual_stream_basic_rates;
        uint8_t         ofdm_ht_triple_stream_basic_rates;
        uint8_t         reserved4;
        uint16_t        acquisition_data;
        uint16_t        reserved5;
} iwh_rxon_cmd_t;

typedef struct iwh_compressed_ba_resp {
        uint32_t sta_addr_lo32;
        uint16_t sta_addr_hi16;
        uint16_t reserved;
        uint8_t sta_id;
        uint8_t tid;
        uint16_t ba_seq_ctl;
        uint32_t ba_bitmap0;
        uint32_t ba_bitmap1;
        uint16_t scd_flow;
        uint16_t scd_ssn;
} iwh_compressed_ba_resp_t;

#define PHY_CALIBRATE_DIFF_GAIN_CMD     (7)
#define PHY_CALIBRATE_DC_CMD            (8)
#define PHY_CALIBRATE_LO_CMD            (9)
#define PHY_CALIBRATE_TX_IQ_CMD         (11)
#define PHY_CALIBRATE_CRYSTAL_FRQ_CMD   (15)
#define PHY_CALIBRATE_BASE_BAND_CMD     (16)
#define PHY_CALIBRATE_TX_IQ_PERD_CMD    (17)
#define HD_TABLE_SIZE   (11)

/*
 * Param table within SENSITIVITY_CMD
 */
#define HD_MIN_ENERGY_CCK_DET_INDEX             (0)
#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)

typedef struct iwh_sensitivity_cmd {
        uint16_t control;
        uint16_t table[HD_TABLE_SIZE];
} iwh_sensitivity_cmd_t;

typedef struct iwh_calibration_cmd {
        uint8_t opCode;
        uint8_t flags;
        uint16_t reserved;
        char diff_gain_a;
        char diff_gain_b;
        char diff_gain_c;
        uint8_t reserved1;
} iwh_calibation_cmd_t;


struct  iwh_calib_hdr {
        uint8_t op_code;
        uint8_t first_group;
        uint8_t groups_num;
        uint8_t data_valid;
};

#define FH_RSCSR_FRAME_SIZE_MASK        (0x00003FFF)

struct  iwh_calib_results {
        void            *tx_iq_res;
        uint32_t        tx_iq_res_len;
        void            *tx_iq_perd_res;
        uint32_t        tx_iq_perd_res_len;
        void            *lo_res;
        uint32_t        lo_res_len;
        void            *dc_res;
        uint32_t        dc_res_len;
        void            *base_band_res;
        uint32_t        base_band_res_len;
};

#define IWH_CALIB_INIT_CFG_ALL  (0xFFFFFFFF)

struct  iwh_calib_cfg_elmnt_s {
        uint32_t        is_enable;
        uint32_t        start;
        uint32_t        send_res;
        uint32_t        apply_res;
        uint32_t        resered;
};

struct  iwh_calib_cfg_status_s {
        struct  iwh_calib_cfg_elmnt_s   once;
        struct  iwh_calib_cfg_elmnt_s   perd;
        uint32_t        flags;
};

struct  iwh_calib_cfg_cmd {
        struct  iwh_calib_cfg_status_s  ucd_calib_cfg;
        struct  iwh_calib_cfg_status_s  drv_calib_cfg;
        uint32_t        reserved1;
};

struct  iwh_cal_crystal_freq {
        uint8_t cap_pin1;
        uint8_t cap_pin2;
};

typedef struct  iwh_calibration_crystal_cmd {
        uint8_t opCode;
        uint8_t first_group;
        uint8_t num_group;
        uint8_t all_data_valid;
        struct  iwh_cal_crystal_freq    data;
} iwh_calibration_crystal_cmd_t;

#define COEX_NUM_OF_EVENTS      (16)

struct  iwh_wimax_coex_event_entry {
        uint8_t request_prio;
        uint8_t win_medium_prio;
        uint8_t reserved;
        uint8_t flags;
};

typedef struct  iwh_wimax_coex_cmd {
        uint8_t flags;
        uint8_t reserved[3];
        struct iwh_wimax_coex_event_entry       sta_prio[COEX_NUM_OF_EVENTS];
} iwh_wimax_coex_cmd_t;

typedef struct iwh_missed_beacon_notif {
        uint32_t consequtive_missed_beacons;
        uint32_t total_missed_becons;
        uint32_t num_expected_beacons;
        uint32_t num_recvd_beacons;
} iwh_missed_beacon_notif_t;

typedef struct iwh_ct_kill_config {
        uint32_t   reserved;
        uint32_t   critical_temperature_M;
        uint32_t   critical_temperature_R;
} iwh_ct_kill_config_t;

/*
 * structure for command IWH_CMD_ASSOCIATE
 */
typedef struct iwh_assoc {
        uint32_t        flags;
        uint32_t        filter;
        uint8_t         ofdm_mask;
        uint8_t         cck_mask;
        uint8_t         ofdm_ht_single_stream_basic_rates;
        uint8_t         ofdm_ht_dual_stream_basic_rates;
        uint16_t        rx_chain_select_flags;
        uint16_t        reserved;
} iwh_assoc_t;

/*
 * structure for command IWH_CMD_TSF
 */
typedef struct iwh_cmd_tsf {
        uint32_t        timestampl;
        uint32_t        timestamph;
        uint16_t        bintval;
        uint16_t        atim;
        uint32_t        binitval;
        uint16_t        lintval;
        uint16_t        reserved;
} iwh_cmd_tsf_t;

/*
 * structure for IWH_CMD_ADD_NODE
 */
#define STA_MODE_ADD_MSK                (0)
#define STA_MODE_MODIFY_MSK             (1)

#define STA_FLG_RTS_MIMO_PROT           (1 << 17)
#define STA_FLG_MAX_AMPDU_POS           (19)
#define STA_FLG_AMPDU_DENSITY_POS       (23)
#define STA_FLG_FAT_EN                  (1 << 21)

#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)

struct  sta_id_modify {
        uint8_t         addr[6];
        uint16_t        reserved1;
        uint8_t         sta_id;
        uint8_t         modify_mask;
        uint16_t        reserved2;
};

struct  iwh_keyinfo {
        uint16_t        key_flags;
        uint8_t         tkip_rx_tsc_byte2;
        uint8_t         reserved1;
        uint16_t        tkip_rx_ttak[5];
        uint8_t         key_offset;
        uint8_t         reserved2;
        uint8_t         key[16];
        uint32_t        tx_secur_seq_cnt1;
        uint32_t        tx_secur_seq_cnt2;
        uint32_t        hw_tkip_mic_rx_key1;
        uint32_t        hw_tkip_mic_rx_key2;
        uint32_t        hw_tkip_mic_tx_key1;
        uint32_t        hw_tkip_mic_tx_key2;
};
typedef struct iwh_add_sta {
        uint8_t         mode;
        uint8_t         reserved[3];
        struct sta_id_modify    sta;
        struct iwh_keyinfo      key;
        uint32_t        station_flags;
        uint32_t        station_flags_msk;
        uint16_t        disable_tx;
        uint16_t        reserved1;
        uint8_t         add_immediate_ba_tid;
        uint8_t         remove_immediate_ba_tid;
        uint16_t        add_immediate_ba_ssn;
        uint32_t        reserved2;
} iwh_add_sta_t;

typedef struct iwh_rem_sta {
        uint8_t num_sta;        /* number of removed stations */
        uint8_t reserved1[3];
        uint8_t addr[6];        /* MAC address of the first station */
        uint8_t reserved2[2];
} iwh_rem_sta_t;

/*
 * Tx flags
 */
enum {
        TX_CMD_FLG_RTS_MSK = (1 << 1),
        TX_CMD_FLG_CTS_MSK = (1 << 2),
        TX_CMD_FLG_ACK_MSK = (1 << 3),
        TX_CMD_FLG_STA_RATE_MSK = (1 << 4),
        TX_CMD_FLG_IMM_BA_RSP_MASK = (1 << 6),
        TX_CMD_FLG_FULL_TXOP_PROT_MSK = (1 << 7),
        TX_CMD_FLG_ANT_SEL_MSK = 0xf00,
        TX_CMD_FLG_ANT_A_MSK = (1 << 8),
        TX_CMD_FLG_ANT_B_MSK = (1 << 9),

        /* ucode ignores BT priority for this frame */
        TX_CMD_FLG_BT_DIS_MSK = (1 << 12),

        /* ucode overrides sequence control */
        TX_CMD_FLG_SEQ_CTL_MSK = (1 << 13),

        /* signal that this frame is non-last MPDU */
        TX_CMD_FLG_MORE_FRAG_MSK = (1 << 14),

        /* calculate TSF in outgoing frame */
        TX_CMD_FLG_TSF_MSK = (1 << 16),

        /* activate TX calibration. */
        TX_CMD_FLG_CALIB_MSK = (1 << 17),

        /*
         * signals that 2 bytes pad was inserted
         * after the MAC header
         */
        TX_CMD_FLG_MH_PAD_MSK = (1 << 20),

        /* HCCA-AP - disable duration overwriting. */
        TX_CMD_FLG_DUR_MSK = (1 << 25),
};


/*
 * structure for command IWH_CMD_TX_DATA
 */
typedef struct iwh_tx_cmd {
        uint16_t len;
        uint16_t next_frame_len;
        uint32_t tx_flags;
        struct iwh_dram_scratch scratch;
        struct iwh_rate rate;
        uint8_t sta_id;
        uint8_t sec_ctl;
        uint8_t initial_rate_index;
        uint8_t reserved;
        uint8_t key[16];
        uint16_t next_frame_flags;
        uint16_t reserved2;
        union {
                uint32_t life_time;
                uint32_t attempt;
        } stop_time;
        uint32_t dram_lsb_ptr;
        uint8_t dram_msb_ptr;
        uint8_t rts_retry_limit;
        uint8_t data_retry_limit;
        uint8_t tid_tspec;
        union {
                uint16_t pm_frame_timeout;
                uint16_t attempt_duration;
        } timeout;
        uint16_t driver_txop;
} iwh_tx_cmd_t;


/*
 * structure for command "TX beacon"
 */

typedef struct iwh_tx_beacon_cmd {
        iwh_tx_cmd_t    config;
        uint16_t        tim_idx;
        uint8_t         tim_size;
        uint8_t         reserved;
        uint8_t         bcon_frame[2342];
} iwh_tx_beacon_cmd_t;


/*
 * 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.
 */
typedef struct iwh_led_cmd {
        uint32_t interval;      /* "interval" in uSec */
        uint8_t id;             /* 1: Activity, 2: Link, 3: Tech */
                /*
                 * # intervals off while blinking;
                 * "0", with > 0 "on" value, turns LED on
                 */
        uint8_t off;
                /*
                 * # intervals on while blinking;
                 * "0", regardless of "off", turns LED off
                 */
        uint8_t on;
        uint8_t reserved;
} iwh_led_cmd_t;

/*
 * structure for IWH_CMD_SET_POWER_MODE
 */
typedef struct iwh_powertable_cmd {
        uint16_t        flags;
        uint8_t         keep_alive_seconds;
        uint8_t         debug_flags;
        uint32_t        rx_timeout;
        uint32_t        tx_timeout;
        uint32_t        sleep[5];
        uint32_t        keep_alive_beacons;
} iwh_powertable_cmd_t;

struct iwh_ssid_ie {
        uint8_t id;
        uint8_t len;
        uint8_t ssid[32];
};
/*
 * structure for command IWH_CMD_SCAN
 */
typedef struct iwh_scan_hdr {
        uint16_t len;
        uint8_t  reserved1;
        uint8_t  nchan;
                /*
                 * dwell only this long on quiet chnl
                 * (active scan)
                 */
        uint16_t quiet_time;
        uint16_t quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
        uint16_t good_crc_th; /* passive -> active promotion threshold */
        uint16_t rx_chain;
                /*
                 * max usec to be out of associated (service)
                 * chnl
                 */
        uint32_t max_out_time;
                /*
                 * pause scan this long when returning to svc
                 * chnl.
                 * SP -- 31:22 # beacons, 21:0 additional usec.
                 */
        uint32_t suspend_time;
        uint32_t flags;
        uint32_t filter_flags;
        struct   iwh_tx_cmd tx_cmd;
        struct   iwh_ssid_ie direct_scan[20];
        /* followed by probe request body */
        /* followed by nchan x iwh_scan_chan */
} iwh_scan_hdr_t;

typedef struct iwh_scan_chan {
        uint32_t        type;
        uint16_t        chan;
        struct iwh_tx_power     tpc;
        uint16_t        active_dwell;   /* dwell time */
        uint16_t        passive_dwell;  /* dwell time */
} iwh_scan_chan_t;

/*
 * structure for IWH_CMD_BLUETOOTH
 */
typedef struct iwh_bt_cmd {
        uint8_t         flags;
        uint8_t         lead_time;
        uint8_t         max_kill;
        uint8_t         reserved;
        uint32_t        kill_ack_mask;
        uint32_t        kill_cts_mask;
} iwh_bt_cmd_t;

typedef struct iwh_wme_param {
        uint8_t         aifsn;
        uint8_t         cwmin_e;
        uint8_t         cwmax_e;
        uint16_t        txop;
} iwh_wme_param_t;
/*
 * QoS parameter command (REPLY_QOS_PARAM = 0x13)
 * FIFO0-background, FIFO1-best effort, FIFO2-video, FIFO3-voice
 */

struct iwh_edca_param {
        uint16_t        cw_min;
        uint16_t        cw_max;
        uint8_t         aifsn;
        uint8_t         reserved;
        uint16_t        txop;
};

typedef struct iwh_qos_param_cmd {
        uint32_t        flags;
        struct iwh_edca_param   ac[AC_NUM];
} iwh_qos_param_cmd_t;

/*
 * firmware image header
 */
typedef struct iwh_firmware_hdr {
        uint32_t        version;
        uint32_t        textsz;
        uint32_t        datasz;
        uint32_t        init_textsz;
        uint32_t        init_datasz;
        uint32_t        bootsz;
} iwh_firmware_hdr_t;

/*
 * structure for IWH_START_SCAN notification
 */
typedef struct iwh_start_scan {
        uint32_t        timestampl;
        uint32_t        timestamph;
        uint32_t        tbeacon;
        uint8_t         chan;
        uint8_t         band;
        uint16_t        reserved;
        uint32_t        status;
} iwh_start_scan_t;

/*
 * structure for IWK_SCAN_COMPLETE notification
 */
typedef struct iwh_stop_scan {
        uint8_t         nchan;
        uint8_t         status;
        uint8_t         reserved;
        uint8_t         chan;
        uint8_t         tsf;
} iwh_stop_scan_t;


#define IWH_READ(sc, reg)                                               \
        ddi_get32((sc)->sc_handle, (uint32_t *)((sc)->sc_base + (reg)))

#define IWH_WRITE(sc, reg, val)                                 \
        ddi_put32((sc)->sc_handle, (uint32_t *)((sc)->sc_base + (reg)), (val))

/*
 * Driver can access peripheral registers
 * and ram via HBUS_TARG_PRPH_* registers.
 */

#define PRPH_BASE       (0x00000)
#define PRPH_END        (0xFFFFF)

#define IWH_SCD_BASE    (PRPH_BASE + 0xA02C00)

#define IWH_SCD_SRAM_BASE_ADDR  (IWH_SCD_BASE + 0x0)
#define IWH_SCD_DRAM_BASE_ADDR  (IWH_SCD_BASE + 0x8)
#define IWH_SCD_QUEUECHAIN_SEL  (IWH_SCD_BASE + 0xE8)
#define IWH_SCD_AGGR_SEL        (IWH_SCD_BASE + 0x248)
#define IWH_SCD_QUEUE_RDPTR(x)  (IWH_SCD_BASE + 0x68 + (x) * 4)
#define IWH_SCD_INTERRUPT_MASK  (IWH_SCD_BASE + 0x108)
#define IWH_SCD_TXFACT          (IWH_SCD_BASE + 0x1C)
#define IWH_SCD_QUEUE_STATUS_BITS(x)    (IWH_SCD_BASE + 0x10C + (x) * 4)

#define IWH_SCD_CONTEXT_DATA_OFFSET     (0x600)
#define IWH_SCD_TX_STTS_BITMAP_OFFSET   (0x7B1)
#define IWH_SCD_TRANSLATE_TBL_OFFSET    (0x7E0)

#define IWH_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS     (0)
#define IWH_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK     (0x0000007F)
#define IWH_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS  (16)
#define IWH_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK  (0x007F0000)

#define IWH_SCD_QUEUECHAIN_SEL_ALL(x)   (((1 << (x)) - 1) &\
                                (~(1 << IWH_CMD_QUEUE_NUM)))

#define IWH_SCD_CONTEXT_QUEUE_OFFSET(x)\
                (IWH_SCD_CONTEXT_DATA_OFFSET + (x) * 8)

#define IWH_SCD_QUEUE_STTS_REG_POS_TXF          (0)
#define IWH_SCD_QUEUE_STTS_REG_POS_ACTIVE       (3)
#define IWH_SCD_QUEUE_STTS_REG_POS_WSL          (4)
#define IWH_SCD_QUEUE_STTS_REG_MSK              (0x00FF0000)

/* 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)

#define WEP_IV_LEN      (4)
#define WEP_ICV_LEN     (4)
#define CCMP_MIC_LEN    (8)
#define TKIP_ICV_LEN    (4)

#ifdef __cplusplus
}
#endif

#endif /* _IWH_HW_H_ */