xref: /src/sys/dev/ic/adwlib.h

/*      $NetBSD: adwlib.h,v 1.5 1999/03/04 20:15:53 dante Exp $        */

/*
 * Definitions for low level routines and data structures
 * for the Advanced Systems Inc. SCSI controllers chips.
 *
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * Author: Baldassare Dante Profeta <dante (at) mclink.it>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */
/*
 * Ported from:
 */
/*
 * advansys.c - Linux Host Driver for AdvanSys SCSI Adapters
 *
 * Copyright (c) 1995-1996 Advanced System Products, Inc.
 * All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that redistributions of source
 * code retain the above copyright notice and this comment without
 * modification.
 */

#ifndef	_ADVANSYS_WIDE_LIBRARY_H_
#define	_ADVANSYS_WIDE_LIBRARY_H_


/*
 * --- Adv Library Constants and Macros
 */

#define ADW_LIB_VERSION_MAJOR	3
#define ADW_LIB_VERSION_MINOR	45

/*
 * Define Adv Reset Hold Time grater than 25 uSec.
 * See AdvResetSCSIBus() for more info.
 */
#define ASC_SCSI_RESET_HOLD_TIME_US  60

/*
 * Define Adv EEPROM constants.
 */

#define ASC_EEP_DVC_CFG_BEGIN           (0x00)
#define ASC_EEP_DVC_CFG_END             (0x15)
#define ASC_EEP_DVC_CTL_BEGIN           (0x16)  /* location of OEM name */
#define ASC_EEP_MAX_WORD_ADDR           (0x1E)

#define ASC_EEP_DELAY_MS                100

/*
 * EEPROM bits reference by the RISC after initialization.
 */
#define ADW_EEPROM_BIG_ENDIAN          0x8000   /* EEPROM Bit 15 */
#define ADW_EEPROM_BIOS_ENABLE         0x4000   /* EEPROM Bit 14 */
#define ADW_EEPROM_TERM_POL            0x2000   /* EEPROM Bit 13 */

/*
 * EEPROM configuration format
 *
 * Field naming convention:
 *
 *  *_enable indicates the field enables or disables the feature. The
 *  value is never reset.
 *
 *  *_able indicates both whether a feature should be enabled or disabled
 *  and whether a device isi capable of the feature. At initialization
 *  this field may be set, but later if a device is found to be incapable
 *  of the feature, the field is cleared.
 *
 * Default values are maintained in a_init.c in the structure
 * Default_EEPROM_Config.
 */
typedef struct adweep_config
{
						/* Word Offset, Description */

	u_int16_t	cfg_lsw;		/* 00 power up initialization */
						/*  bit 13 set - Term Polarity Control */
						/*  bit 14 set - BIOS Enable */
						/*  bit 15 set - Big Endian Mode */
	u_int16_t	cfg_msw;		/* 01 unused	   */
	u_int16_t	disc_enable;		/* 02 disconnect enable */
	u_int16_t	wdtr_able;		/* 03 Wide DTR able */
	u_int16_t	sdtr_able;		/* 04 Synchronous DTR able */
	u_int16_t	start_motor;		/* 05 send start up motor */
	u_int16_t	tagqng_able;		/* 06 tag queuing able */
	u_int16_t	bios_scan;		/* 07 BIOS device control */
	u_int16_t	scam_tolerant;		/* 08 no scam */

	u_int8_t	adapter_scsi_id;	/* 09 Host Adapter ID */
	u_int8_t	bios_boot_delay;	/*    power up wait */

	u_int8_t	scsi_reset_delay;	/* 10 reset delay */
	u_int8_t	bios_id_lun;		/*    first boot device scsi id & lun */
						/*    high nibble is lun */
						/*    low nibble is scsi id */

	u_int8_t	termination;  		 /* 11 0 - automatic */
						/*    1 - low off / high off */
						/*    2 - low off / high on */
						/*    3 - low on  / high on */
						/*    There is no low on  / high off */

	u_int8_t	reserved1;		/*    reserved byte (not used) */

	u_int16_t	bios_ctrl;		/* 12 BIOS control bits */
						/*  bit 0  set: BIOS don't act as initiator. */
						/*  bit 1  set: BIOS > 1 GB support */
						/*  bit 2  set: BIOS > 2 Disk Support */
						/*  bit 3  set: BIOS don't support removables */
						/*  bit 4  set: BIOS support bootable CD */
						/*  bit 5  set: */
						/*  bit 6  set: BIOS support multiple LUNs */
						/*  bit 7  set: BIOS display of message */
						/*  bit 8  set: */
						/*  bit 9  set: Reset SCSI bus during init. */
						/*  bit 10 set: */
						/*  bit 11 set: No verbose initialization. */
						/*  bit 12 set: SCSI parity enabled */
						/*  bit 13 set: */
						/*  bit 14 set: */
						/*  bit 15 set: */
	u_int16_t	ultra_able;		/* 13 ULTRA speed able */
	u_int16_t	reserved2;		/* 14 reserved */
	u_int8_t	max_host_qng;		/* 15 maximum host queuing */
	u_int8_t	max_dvc_qng;		/*    maximum per device queuing */
	u_int16_t	dvc_cntl;		/* 16 control bit for driver */
	u_int16_t	bug_fix;		/* 17 control bit for bug fix */
	u_int16_t	serial_number_word1;	/* 18 Board serial number word 1 */
	u_int16_t	serial_number_word2;	/* 19 Board serial number word 2 */
	u_int16_t	serial_number_word3;	/* 20 Board serial number word 3 */
	u_int16_t	check_sum;		/* 21 EEP check sum */
	u_int8_t	oem_name[16];		/* 22 OEM name */
	u_int16_t	dvc_err_code;		/* 30 last device driver error code */
	u_int16_t	adv_err_code;		/* 31 last uc and Adv Lib error code */
	u_int16_t	adv_err_addr;		/* 32 last uc error address */
	u_int16_t	saved_dvc_err_code;	/* 33 saved last dev. driver error code   */
	u_int16_t	saved_adv_err_code;	/* 34 saved last uc and Adv Lib error code */
	u_int16_t	saved_adv_err_addr;	/* 35 saved last uc error address	 */
	u_int16_t	num_of_err;		/* 36 number of error */
} ADWEEP_CONFIG;

/*
 * EEPROM Commands
 */
#define ASC_EEP_CMD_READ          0x80
#define ASC_EEP_CMD_WRITE         0x40
#define ASC_EEP_CMD_WRITE_ABLE    0x30
#define ASC_EEP_CMD_WRITE_DISABLE 0x00

#define ASC_EEP_CMD_DONE             0x0200
#define ASC_EEP_CMD_DONE_ERR         0x0001

/* cfg_word */
#define EEP_CFG_WORD_BIG_ENDIAN      0x8000

/* bios_ctrl */
#define BIOS_CTRL_BIOS               0x0001
#define BIOS_CTRL_EXTENDED_XLAT      0x0002
#define BIOS_CTRL_GT_2_DISK          0x0004
#define BIOS_CTRL_BIOS_REMOVABLE     0x0008
#define BIOS_CTRL_BOOTABLE_CD        0x0010
#define BIOS_CTRL_MULTIPLE_LUN       0x0040
#define BIOS_CTRL_DISPLAY_MSG        0x0080
#define BIOS_CTRL_NO_SCAM            0x0100
#define BIOS_CTRL_RESET_SCSI_BUS     0x0200
#define BIOS_CTRL_INIT_VERBOSE       0x0800
#define BIOS_CTRL_SCSI_PARITY        0x1000

/*
 * ASC 3550 Internal Memory Size - 8KB
 */
#define ADW_CONDOR_MEMSIZE   0x2000     /* 8 KB Internal Memory */

/*
 * ASC 3550 I/O Length - 64 bytes
 */
#define ADW_CONDOR_IOLEN     0x40       /* I/O Port Range in bytes */

/*
 * Byte I/O register address from base of 'iop_base'.
 */
#define IOPB_INTR_STATUS_REG    0x00
#define IOPB_CHIP_ID_1          0x01
#define IOPB_INTR_ENABLES       0x02
#define IOPB_CHIP_TYPE_REV      0x03
#define IOPB_RES_ADDR_4         0x04
#define IOPB_RES_ADDR_5         0x05
#define IOPB_RAM_DATA           0x06
#define IOPB_RES_ADDR_7         0x07
#define IOPB_FLAG_REG           0x08
#define IOPB_RES_ADDR_9         0x09
#define IOPB_RISC_CSR           0x0A
#define IOPB_RES_ADDR_B         0x0B
#define IOPB_RES_ADDR_C         0x0C
#define IOPB_RES_ADDR_D         0x0D
#define IOPB_RES_ADDR_E         0x0E
#define IOPB_RES_ADDR_F         0x0F
#define IOPB_MEM_CFG            0x10
#define IOPB_RES_ADDR_11        0x11
#define IOPB_RES_ADDR_12        0x12
#define IOPB_RES_ADDR_13        0x13
#define IOPB_FLASH_PAGE         0x14
#define IOPB_RES_ADDR_15        0x15
#define IOPB_RES_ADDR_16        0x16
#define IOPB_RES_ADDR_17        0x17
#define IOPB_FLASH_DATA         0x18
#define IOPB_RES_ADDR_19        0x19
#define IOPB_RES_ADDR_1A        0x1A
#define IOPB_RES_ADDR_1B        0x1B
#define IOPB_RES_ADDR_1C        0x1C
#define IOPB_RES_ADDR_1D        0x1D
#define IOPB_RES_ADDR_1E        0x1E
#define IOPB_RES_ADDR_1F        0x1F
#define IOPB_DMA_CFG0           0x20
#define IOPB_DMA_CFG1           0x21
#define IOPB_TICKLE             0x22
#define IOPB_DMA_REG_WR         0x23
#define IOPB_SDMA_STATUS        0x24
#define IOPB_SCSI_BYTE_CNT      0x25
#define IOPB_HOST_BYTE_CNT      0x26
#define IOPB_BYTE_LEFT_TO_XFER  0x27
#define IOPB_BYTE_TO_XFER_0     0x28
#define IOPB_BYTE_TO_XFER_1     0x29
#define IOPB_BYTE_TO_XFER_2     0x2A
#define IOPB_BYTE_TO_XFER_3     0x2B
#define IOPB_ACC_GRP            0x2C
#define IOPB_RES_ADDR_2D        0x2D
#define IOPB_DEV_ID             0x2E
#define IOPB_RES_ADDR_2F        0x2F
#define IOPB_SCSI_DATA          0x30
#define IOPB_RES_ADDR_31        0x31
#define IOPB_RES_ADDR_32        0x32
#define IOPB_SCSI_DATA_HSHK     0x33
#define IOPB_SCSI_CTRL          0x34
#define IOPB_RES_ADDR_35        0x35
#define IOPB_RES_ADDR_36        0x36
#define IOPB_RES_ADDR_37        0x37
#define IOPB_RES_ADDR_38        0x38
#define IOPB_RES_ADDR_39        0x39
#define IOPB_RES_ADDR_3A        0x3A
#define IOPB_RES_ADDR_3B        0x3B
#define IOPB_RFIFO_CNT          0x3C
#define IOPB_RES_ADDR_3D        0x3D
#define IOPB_RES_ADDR_3E        0x3E
#define IOPB_RES_ADDR_3F        0x3F

/*
 * Word I/O register address from base of 'iop_base'.
 */
#define IOPW_CHIP_ID_0          0x00  /* CID0  */
#define IOPW_CTRL_REG           0x02  /* CC    */
#define IOPW_RAM_ADDR           0x04  /* LA    */
#define IOPW_RAM_DATA           0x06  /* LD    */
#define IOPW_RES_ADDR_08        0x08
#define IOPW_RISC_CSR           0x0A  /* CSR   */
#define IOPW_SCSI_CFG0          0x0C  /* CFG0  */
#define IOPW_SCSI_CFG1          0x0E  /* CFG1  */
#define IOPW_RES_ADDR_10        0x10
#define IOPW_SEL_MASK           0x12  /* SM    */
#define IOPW_RES_ADDR_14        0x14
#define IOPW_FLASH_ADDR         0x16  /* FA    */
#define IOPW_RES_ADDR_18        0x18
#define IOPW_EE_CMD             0x1A  /* EC    */
#define IOPW_EE_DATA            0x1C  /* ED    */
#define IOPW_SFIFO_CNT          0x1E  /* SFC   */
#define IOPW_RES_ADDR_20        0x20
#define IOPW_Q_BASE             0x22  /* QB    */
#define IOPW_QP                 0x24  /* QP    */
#define IOPW_IX                 0x26  /* IX    */
#define IOPW_SP                 0x28  /* SP    */
#define IOPW_PC                 0x2A  /* PC    */
#define IOPW_RES_ADDR_2C        0x2C
#define IOPW_RES_ADDR_2E        0x2E
#define IOPW_SCSI_DATA          0x30  /* SD    */
#define IOPW_SCSI_DATA_HSHK     0x32  /* SDH   */
#define IOPW_SCSI_CTRL          0x34  /* SC    */
#define IOPW_HSHK_CFG           0x36  /* HCFG  */
#define IOPW_SXFR_STATUS        0x36  /* SXS   */
#define IOPW_SXFR_CNTL          0x38  /* SXL   */
#define IOPW_SXFR_CNTH          0x3A  /* SXH   */
#define IOPW_RES_ADDR_3C        0x3C
#define IOPW_RFIFO_DATA         0x3E  /* RFD   */

/*
 * Doubleword I/O register address from base of 'iop_base'.
 */
#define IOPDW_RES_ADDR_0         0x00
#define IOPDW_RAM_DATA           0x04
#define IOPDW_RES_ADDR_8         0x08
#define IOPDW_RES_ADDR_C         0x0C
#define IOPDW_RES_ADDR_10        0x10
#define IOPDW_RES_ADDR_14        0x14
#define IOPDW_RES_ADDR_18        0x18
#define IOPDW_RES_ADDR_1C        0x1C
#define IOPDW_SDMA_ADDR0         0x20
#define IOPDW_SDMA_ADDR1         0x24
#define IOPDW_SDMA_COUNT         0x28
#define IOPDW_SDMA_ERROR         0x2C
#define IOPDW_RDMA_ADDR0         0x30
#define IOPDW_RDMA_ADDR1         0x34
#define IOPDW_RDMA_COUNT         0x38
#define IOPDW_RDMA_ERROR         0x3C

#define ADW_CHIP_ID_BYTE         0x25
#define ADW_CHIP_ID_WORD         0x04C1

#define ADW_SC_SCSI_BUS_RESET    0x2000

#define ADW_INTR_ENABLE_HOST_INTR                   0x01
#define ADW_INTR_ENABLE_SEL_INTR                    0x02
#define ADW_INTR_ENABLE_DPR_INTR                    0x04
#define ADW_INTR_ENABLE_RTA_INTR                    0x08
#define ADW_INTR_ENABLE_RMA_INTR                    0x10
#define ADW_INTR_ENABLE_RST_INTR                    0x20
#define ADW_INTR_ENABLE_DPE_INTR                    0x40
#define ADW_INTR_ENABLE_GLOBAL_INTR                 0x80

#define ADW_INTR_STATUS_INTRA            0x01
#define ADW_INTR_STATUS_INTRB            0x02
#define ADW_INTR_STATUS_INTRC            0x04

#define ADW_RISC_CSR_STOP           (0x0000)
#define ADW_RISC_TEST_COND          (0x2000)
#define ADW_RISC_CSR_RUN            (0x4000)
#define ADW_RISC_CSR_SINGLE_STEP    (0x8000)

#define ADW_CTRL_REG_HOST_INTR      0x0100
#define ADW_CTRL_REG_SEL_INTR       0x0200
#define ADW_CTRL_REG_DPR_INTR       0x0400
#define ADW_CTRL_REG_RTA_INTR       0x0800
#define ADW_CTRL_REG_RMA_INTR       0x1000
#define ADW_CTRL_REG_RES_BIT14      0x2000
#define ADW_CTRL_REG_DPE_INTR       0x4000
#define ADW_CTRL_REG_POWER_DONE     0x8000
#define ADW_CTRL_REG_ANY_INTR       0xFF00

#define ADW_CTRL_REG_CMD_RESET             0x00C6
#define ADW_CTRL_REG_CMD_WR_IO_REG         0x00C5
#define ADW_CTRL_REG_CMD_RD_IO_REG         0x00C4
#define ADW_CTRL_REG_CMD_WR_PCI_CFG_SPACE  0x00C3
#define ADW_CTRL_REG_CMD_RD_PCI_CFG_SPACE  0x00C2

#define ADW_SCSI_CTRL_RSTOUT        0x2000

#define ADW_IS_INT_PENDING(iot, ioh)  \
    (ADW_READ_WORD_REGISTER((iot), (ioh), IOPW_CTRL_REG) & ADW_CTRL_REG_HOST_INTR)

/*
 * SCSI_CFG0 Register bit definitions
 */
#define ADW_TIMER_MODEAB    0xC000  /* Watchdog, Second, and Select. Timer Ctrl. */
#define ADW_PARITY_EN       0x2000  /* Enable SCSI Parity Error detection */
#define ADW_EVEN_PARITY     0x1000  /* Select Even Parity */
#define ADW_WD_LONG         0x0800  /* Watchdog Interval, 1: 57 min, 0: 13 sec */
#define ADW_QUEUE_128       0x0400  /* Queue Size, 1: 128 byte, 0: 64 byte */
#define ADW_PRIM_MODE       0x0100  /* Primitive SCSI mode */
#define ADW_SCAM_EN         0x0080  /* Enable SCAM selection */
#define ADW_SEL_TMO_LONG    0x0040  /* Sel/Resel Timeout, 1: 400 ms, 0: 1.6 ms */
#define ADW_CFRM_ID         0x0020  /* SCAM id sel. confirm., 1: fast, 0: 6.4 ms */
#define ADW_OUR_ID_EN       0x0010  /* Enable OUR_ID bits */
#define ADW_OUR_ID          0x000F  /* SCSI ID */

/*
 * SCSI_CFG1 Register bit definitions
 */
#define ADW_BIG_ENDIAN      0x8000  /* Enable Big Endian Mode MIO:15, EEP:15 */
#define ADW_TERM_POL        0x2000  /* Terminator Polarity Ctrl. MIO:13, EEP:13 */
#define ADW_SLEW_RATE       0x1000  /* SCSI output buffer slew rate */
#define ADW_FILTER_SEL      0x0C00  /* Filter Period Selection */
#define  ADW_FLTR_DISABLE    0x0000  /* Input Filtering Disabled */
#define  ADW_FLTR_11_TO_20NS 0x0800  /* Input Filtering 11ns to 20ns */
#define  ADW_FLTR_21_TO_39NS 0x0C00  /* Input Filtering 21ns to 39ns */
#define ADW_ACTIVE_DBL      0x0200  /* Disable Active Negation */
#define ADW_DIFF_MODE       0x0100  /* SCSI differential Mode (Read-Only) */
#define ADW_DIFF_SENSE      0x0080  /* 1: No SE cables, 0: SE cable (Read-Only) */
#define ADW_TERM_CTL_SEL    0x0040  /* Enable TERM_CTL_H and TERM_CTL_L */
#define ADW_TERM_CTL        0x0030  /* External SCSI Termination Bits */
#define  ADW_TERM_CTL_H      0x0020  /* Enable External SCSI Upper Termination */
#define  ADW_TERM_CTL_L      0x0010  /* Enable External SCSI Lower Termination */
#define ADW_CABLE_DETECT    0x000F  /* External SCSI Cable Connection Status */

#define CABLE_ILLEGAL_A 0x7
    /* x 0 0 0  | on  on | Illegal (all 3 connectors are used) */

#define CABLE_ILLEGAL_B 0xB
    /* 0 x 0 0  | on  on | Illegal (all 3 connectors are used) */

/*
   The following table details the SCSI_CFG1 Termination Polarity,
   Termination Control and Cable Detect bits.

   Cable Detect | Termination
   Bit 3 2 1 0  | 5   4  | Notes
   _____________|________|____________________
       1 1 1 0  | on  on | Internal wide only
       1 1 0 1  | on  on | Internal narrow only
       1 0 1 1  | on  on | External narrow only
       0 x 1 1  | on  on | External wide only
       1 1 0 0  | on  off| Internal wide and internal narrow
       1 0 1 0  | on  off| Internal wide and external narrow
       0 x 1 0  | off off| Internal wide and external wide
       1 0 0 1  | on  off| Internal narrow and external narrow
       0 x 0 1  | on  off| Internal narrow and external wide
       1 1 1 1  | on  on | No devices are attached
       x 0 0 0  | on  on | Illegal (all 3 connectors are used)
       0 x 0 0  | on  on | Illegal (all 3 connectors are used)

       x means don't-care (either '0' or '1')

       If term_pol (bit 13) is '0' (active-low terminator enable), then:
           'on' is '0' and 'off' is '1'.

       If term_pol bit is '1' (meaning active-hi terminator enable), then:
           'on' is '1' and 'off' is '0'.
 */

/*
 * MEM_CFG Register bit definitions
 */
#define BIOS_EN         0x40    /* BIOS Enable MIO:14,EEP:14 */
#define FAST_EE_CLK     0x20    /* Diagnostic Bit */
#define RAM_SZ          0x1C    /* Specify size of RAM to RISC */
#define  RAM_SZ_2KB      0x00    /* 2 KB */
#define  RAM_SZ_4KB      0x04    /* 4 KB */
#define  RAM_SZ_8KB      0x08    /* 8 KB */
#define  RAM_SZ_16KB     0x0C    /* 16 KB */
#define  RAM_SZ_32KB     0x10    /* 32 KB */
#define  RAM_SZ_64KB     0x14    /* 64 KB */

/*
 * DMA_CFG0 Register bit definitions
 *
 * This register is only accessible to the host.
 */
#define BC_THRESH_ENB   0x80    /* PCI DMA Start Conditions */
#define FIFO_THRESH     0x70    /* PCI DMA FIFO Threshold */
#define  FIFO_THRESH_16B  0x00   /* 16 bytes */
#define  FIFO_THRESH_32B  0x20   /* 32 bytes */
#define  FIFO_THRESH_48B  0x30   /* 48 bytes */
#define  FIFO_THRESH_64B  0x40   /* 64 bytes */
#define  FIFO_THRESH_80B  0x50   /* 80 bytes (default) */
#define  FIFO_THRESH_96B  0x60   /* 96 bytes */
#define  FIFO_THRESH_112B 0x70   /* 112 bytes */
#define START_CTL       0x0C    /* DMA start conditions */
#define  START_CTL_TH    0x00    /* Wait threshold level (default) */
#define  START_CTL_ID    0x04    /* Wait SDMA/SBUS idle */
#define  START_CTL_THID  0x08    /* Wait threshold and SDMA/SBUS idle */
#define  START_CTL_EMFU  0x0C    /* Wait SDMA FIFO empty/full */
#define READ_CMD        0x03    /* Memory Read Method */
#define  READ_CMD_MR     0x00    /* Memory Read */
#define  READ_CMD_MRL    0x02    /* Memory Read Long */
#define  READ_CMD_MRM    0x03    /* Memory Read Multiple (default) */


/*
 * Adv Library Status Definitions
 */
#define ADW_TRUE        1
#define ADW_FALSE       0
#define ADW_NOERROR     1
#define ADW_SUCCESS     1
#define ADW_BUSY        0
#define ADW_ERROR       (-1)


/*
 * ASC_DVC_VAR 'warn_code' values
 */
#define ASC_WARN_EEPROM_CHKSUM          0x0002 /* EEP check sum error */
#define ASC_WARN_EEPROM_TERMINATION     0x0004 /* EEP termination bad field */
#define ASC_WARN_SET_PCI_CONFIG_SPACE   0x0080 /* PCI config space set error */
#define ASC_WARN_ERROR                  0xFFFF /* ADW_ERROR return */

#define ADW_MAX_TID                     15 /* max. target identifier */
#define ADW_MAX_LUN                     7  /* max. logical unit number */


/*
 * AscInitGetConfig() and AscInitAsc1000Driver() Definitions
 *
 * Error code values are set in ASC_DVC_VAR 'err_code'.
 */
#define ASC_IERR_WRITE_EEPROM       0x0001 /* write EEPROM error */
#define ASC_IERR_MCODE_CHKSUM       0x0002 /* micro code check sum error */
#define ASC_IERR_START_STOP_CHIP    0x0008 /* start/stop chip failed */
#define ASC_IERR_CHIP_VERSION       0x0040 /* wrong chip version */
#define ASC_IERR_SET_SCSI_ID        0x0080 /* set SCSI ID failed */
#define ASC_IERR_BAD_SIGNATURE      0x0200 /* signature not found */
#define ASC_IERR_ILLEGAL_CONNECTION 0x0400 /* Illegal cable connection */
#define ASC_IERR_SINGLE_END_DEVICE  0x0800 /* Single-end used w/differential */
#define ASC_IERR_REVERSED_CABLE     0x1000 /* Narrow flat cable reversed */
#define ASC_IERR_RW_LRAM            0x8000 /* read/write local RAM error */

/*
 * Fixed locations of microcode operating variables.
 */
#define ASC_MC_CODE_BEGIN_ADDR          0x0028 /* microcode start address */
#define ASC_MC_CODE_END_ADDR            0x002A /* microcode end address */
#define ASC_MC_CODE_CHK_SUM             0x002C /* microcode code checksum */
#define ASC_MC_STACK_BEGIN              0x002E /* microcode stack begin */
#define ASC_MC_STACK_END                0x0030 /* microcode stack end */
#define ASC_MC_VERSION_DATE             0x0038 /* microcode version */
#define ASC_MC_VERSION_NUM              0x003A /* microcode number */
#define ASCV_VER_SERIAL_W               0x003C /* used in dos_init */
#define ASC_MC_BIOSMEM                  0x0040 /* BIOS RISC Memory Start */
#define ASC_MC_BIOSLEN                  0x0050 /* BIOS RISC Memory Length */
#define ASC_MC_HALTCODE                 0x0094 /* microcode halt code */
#define ASC_MC_CALLERPC                 0x0096 /* microcode halt caller PC */
#define ASC_MC_ADAPTER_SCSI_ID          0x0098 /* one ID byte + reserved */
#define ASC_MC_ULTRA_ABLE               0x009C
#define ASC_MC_SDTR_ABLE                0x009E /* Sync. Transfer TID bitmask. */
#define ASC_MC_TAGQNG_ABLE              0x00A0
#define ASC_MC_DISC_ENABLE              0x00A2
#define ASC_MC_IDLE_CMD                 0x00A6
#define ASC_MC_IDLE_PARA_STAT           0x00A8
#define ASC_MC_DEFAULT_SCSI_CFG0        0x00AC
#define ASC_MC_DEFAULT_SCSI_CFG1        0x00AE
#define ASC_MC_DEFAULT_MEM_CFG          0x00B0
#define ASC_MC_DEFAULT_SEL_MASK         0x00B2
#define ASC_MC_RISC_NEXT_READY          0x00B4
#define ASC_MC_RISC_NEXT_DONE           0x00B5
#define ASC_MC_SDTR_DONE                0x00B6
#define ASC_MC_NUMBER_OF_QUEUED_CMD     0x00C0
#define ASC_MC_NUMBER_OF_MAX_CMD        0x00D0
#define ASC_MC_DEVICE_HSHK_CFG_TABLE    0x0100
#define ASC_MC_WDTR_ABLE                0x0120 /* Wide Transfer TID bitmask. */
#define ASC_MC_CONTROL_FLAG             0x0122 /* Microcode control flag. */
#define ASC_MC_WDTR_DONE                0x0124
#define ASC_MC_HOST_NEXT_READY          0x0128 /* Host Next Ready RQL Entry. */
#define ASC_MC_HOST_NEXT_DONE           0x0129 /* Host Next Done RQL Entry. */

/*
 * BIOS LRAM variable absolute offsets.
 */
#define BIOS_CODESEG    0x54
#define BIOS_CODELEN    0x56
#define BIOS_SIGNATURE  0x58
#define BIOS_VERSION    0x5A
#define BIOS_SIGNATURE  0x58

/*
 * Microcode Control Flags
 *
 * Flags set by the Adv Library in RISC variable 'control_flag' (0x122)
 * and handled by the microcode.
 */
#define CONTROL_FLAG_IGNORE_PERR        0x0001 /* Ignore DMA Parity Errors */

/*
 * ASC_MC_DEVICE_HSHK_CFG_TABLE microcode table or HSHK_CFG register format
 */
#define HSHK_CFG_WIDE_XFR       0x8000
#define HSHK_CFG_RATE           0x0F00
#define HSHK_CFG_OFFSET         0x001F

/*
 * LRAM RISC Queue Lists (LRAM addresses 0x1200 - 0x19FF)
 *
 * Each of the 255 Adv Library/Microcode RISC queue lists or mailboxes
 * starting at LRAM address 0x1200 is 8 bytes and has the following
 * structure. Only 253 of these are actually used for command queues.
 */

#define ASC_MC_RISC_Q_LIST_BASE         0x1200
#define ASC_MC_RISC_Q_LIST_SIZE         0x0008
#define ASC_MC_RISC_Q_TOTAL_CNT         0x00FF /* Num. queue slots in LRAM. */
#define ASC_MC_RISC_Q_FIRST             0x0001
#define ASC_MC_RISC_Q_LAST              0x00FF

#define ASC_DEF_MAX_HOST_QNG    0xFD /* Max. number of host commands (253) */
#define ASC_DEF_MIN_HOST_QNG    0x10 /* Min. number of host commands (16) */
#define ASC_DEF_MAX_DVC_QNG     0x3F /* Max. number commands per device (63) */
#define ASC_DEF_MIN_DVC_QNG     0x04 /* Min. number commands per device (4) */

/* RISC Queue List structure - 8 bytes */
#define RQL_FWD     0     /* forward pointer (1 byte) */
#define RQL_BWD     1     /* backward pointer (1 byte) */
#define RQL_STATE   2     /* state byte - free, ready, done, aborted (1 byte) */
#define RQL_TID     3     /* request target id (1 byte) */
#define RQL_PHYADDR 4     /* request physical pointer (4 bytes) */

/* RISC Queue List state values */
#define ASC_MC_QS_FREE                  0x00
#define ASC_MC_QS_READY                 0x01
#define ASC_MC_QS_DONE                  0x40
#define ASC_MC_QS_ABORTED               0x80

/* RISC Queue List pointer values */
#define ASC_MC_NULL_Q                   0x00            /* NULL_Q == 0   */
#define ASC_MC_BIOS_Q                   0xFF            /* BIOS_Q = 255  */

/* ASC_SCSI_REQ_Q 'cntl' field values */
#define ASC_MC_QC_START_MOTOR           0x02     /* Issue start motor. */
#define ASC_MC_QC_NO_OVERRUN            0x04     /* Don't report overrun. */
#define ASC_MC_QC_FIRST_DMA             0x08     /* Internal microcode flag. */
#define ASC_MC_QC_ABORTED               0x10     /* Request aborted by host. */
#define ASC_MC_QC_REQ_SENSE             0x20     /* Auto-Request Sense. */
#define ASC_MC_QC_DOS_REQ               0x80     /* Request issued by DOS. */


/*
 * ASC_SCSI_REQ_Q 'a_flag' definitions
 *
 * The Adv Library should limit use to the lower nibble (4 bits) of
 * a_flag. Drivers are free to use the upper nibble (4 bits) of a_flag.
 */
#define ADW_POLL_REQUEST                0x01   /* poll for request completion */
#define ADW_SCSIQ_DONE                  0x02   /* request done */

/*
 * Adapter temporary configuration structure
 *
 * This structure can be discarded after initialization. Don't add
 * fields here needed after initialization.
 *
 * Field naming convention:
 *
 *  *_enable indicates the field enables or disables a feature. The
 *  value of the field is never reset.
 */
typedef struct adw_dvc_cfg {
	u_int16_t	disc_enable;	/* enable disconnection */
	u_int8_t	chip_version;	/* chip version */
	u_int8_t	termination;	/* Term. Ctrl. bits 6-5 of SCSI_CFG1 register */
	u_int16_t	pci_device_id;	/* PCI device code number */
	u_int16_t	lib_version;	/* Adv Library version number */
	u_int16_t	control_flag;	/* Microcode Control Flag */
	u_int16_t	mcode_date;	/* Microcode date */
	u_int16_t	mcode_version;	/* Microcode version */
	u_int16_t	pci_slot_info;	/* high byte device/function number */
					/* bits 7-3 device num., bits 2-0 function num. */
					/* low byte bus num. */
	u_int16_t	bios_boot_wait;	/* BIOS boot time delay */
	u_int16_t	serial1;	/* EEPROM serial number word 1 */
	u_int16_t	serial2;	/* EEPROM serial number word 2 */
	u_int16_t	serial3;	/* EEPROM serial number word 3 */
} ADW_DVC_CFG;

/*
 * Adapter operation variable structure.
 *
 * One structure is required per host adapter.
 *
 * Field naming convention:
 *
 *  *_able indicates both whether a feature should be enabled or disabled
 *  and whether a device is capable of the feature. At initialization
 *  this field may be set, but later if a device is found to be incapable
 *  of the feature, the field is cleared.
 */
#define	CCB_HASH_SIZE	32	/* hash table size for phystokv */
#define	CCB_HASH_SHIFT	9
#define CCB_HASH(x)	((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))

typedef int (* ADW_CALLBACK) (int);

typedef struct adw_softc {

	struct device		sc_dev;

	bus_space_tag_t		sc_iot;
	bus_space_handle_t	sc_ioh;
	bus_dma_tag_t		sc_dmat;
	bus_dmamap_t		sc_dmamap_control; /* maps the control structures */
	void			*sc_ih;

	struct adw_control	*sc_control; /* control structures */

	struct adw_ccb		*sc_ccbhash[CCB_HASH_SIZE];
	TAILQ_HEAD(, adw_ccb)	sc_free_ccb, sc_waiting_ccb;
	struct scsipi_link	sc_link;     /* prototype for devs */
	struct scsipi_adapter	sc_adapter;

	TAILQ_HEAD(, scsipi_xfer) sc_queue;

	u_int32_t		sc_flags;	/* see below sc_flags values */

	ADW_CALLBACK	isr_callback;	/* pointer to function, called in AdvISR() */
	ADW_CALLBACK	sbreset_callback; /* pointer to function, called in AdvISR() */
	u_int16_t	bios_ctrl;	/* BIOS control word, EEPROM word 12 */
	u_int16_t	wdtr_able;	/* try WDTR for a device */
	u_int16_t	sdtr_able;	/* try SDTR for a device */
	u_int16_t	ultra_able;	/* try SDTR Ultra speed for a device */
	u_int16_t	tagqng_able;	/* try tagged queuing with a device */
	u_int16_t	start_motor;	/* start motor command allowed */
	u_int8_t	max_dvc_qng;	/* maximum number of tagged commands per device */
	u_int8_t	scsi_reset_wait; /* delay in seconds after scsi bus reset */
	u_int8_t	chip_no; 	/* should be assigned by caller */
	u_int8_t	max_host_qng;	/* maximum number of Q'ed command allowed */
	u_int8_t	cur_host_qng;	/* total number of queue command */
	u_int8_t	irq_no;  	/* IRQ number */
	u_int16_t	no_scam; 	/* scam_tolerant of EEPROM */
	u_int16_t	idle_cmd_done;	/* microcode idle command done set by AdvISR() */
	ulong		drv_ptr; 	/* driver pointer to private structure */
	u_int8_t	chip_scsi_id;	/* chip SCSI target ID */
 /*
  * Note: The following fields will not be used after initialization. The
  * driver may discard the buffer after initialization is done.
  */
  ADW_DVC_CFG cfg; /* temporary configuration structure  */
} ADW_SOFTC;

/* sc_flags values */
#define ADW_WIDE_BOARD			0x04


#define ADW_IS_NARROW_BOARD(sc) (((sc)->sc_flags & ADW_WIDE_BOARD) == 0)
#define ADW_IS_WIDE_BOARD(sc)   ((sc)->sc_flags & ADW_WIDE_BOARD)


#define NO_OF_SG_PER_BLOCK              15

typedef struct adw_sg_block {
	u_int8_t	reserved1;
	u_int8_t	reserved2;
	u_int8_t	first_entry_no;		/* starting entry number */
	u_int8_t	last_entry_no;		/* last entry number */
	struct adw_sg_block *sg_ptr;		/* links to the next sg block */
	struct {
		u_int32_t sg_addr;		/* SG element address */
		u_int32_t sg_count;		/* SG element count */
	} sg_list[NO_OF_SG_PER_BLOCK];
} ADW_SG_BLOCK;

/*
 * ADW_SCSI_REQ_Q - microcode request structure
 *
 * All fields in this structure up to byte 60 are used by the microcode.
 * The microcode makes assumptions about the size and ordering of fields
 * in this structure. Do not change the structure definition here without
 * coordinating the change with the microcode.
 */
typedef struct adw_scsi_req_q {
	u_int8_t	cntl;		/* Ucode flags and state (ASC_MC_QC_*). */
	u_int8_t	sg_entry_cnt;	/* SG element count. Zero for no SG. */
	u_int8_t	target_id;	/* Device target identifier. */
	u_int8_t	target_lun;	/* Device target logical unit number. */
	ulong		data_addr;	/* Data buffer physical address. */
	u_int32_t	data_cnt;	/* Data count. Ucode sets to residual. */
	ulong		sense_addr;	/* Sense buffer physical address. */
	ulong		ccb_ptr;	/* Driver request physical address. */
	u_int8_t	a_flag;		/* Adv Library flag field. */
	u_int8_t	sense_len;	/* Auto-sense length. uCode sets to residual. */
	u_int8_t	cdb_len;	/* SCSI CDB length. */
	u_int8_t	tag_code;	/* SCSI-2 Tag Queue Code: 00, 20-22. */
	u_int8_t	done_status;	/* Completion status. */
	u_int8_t	scsi_status;	/* SCSI status byte. (see below) */
	u_int8_t	host_status;	/* Ucode host status. */
	u_int8_t	ux_sg_ix;	/* Ucode working SG variable. */
	u_int8_t	cdb[12];	/* SCSI command block. */
	ulong		sg_real_addr;	/* SG list physical address. */
	u_int32_t	free_scsiq_link;/* Iternal pointer to ADW_SCSI_REQ_Q */
	ulong		ux_wk_data_cnt;	/* Saved data count at disconnection. */
	ulong		ccb_scsiq_ptr;	/* Pointer to ADW_SCSI_REQ_Q */
	u_int32_t	sg_list_ptr;	/* SG list v-address. (ADW_SG_BLOCK* - unused) */
	/*
	 * End of microcode structure - 60 bytes. The rest of the structure
	 * is used by the Adv Library and ignored by the microcode.
	 */
	struct scsipi_sense_data *vsense_addr;	/* Sense buffer virtual address. */
	u_char		*vdata_addr;	/* Data buffer virtual address. */
	u_int8_t	orig_sense_len;	/* Original length of sense buffer. */
	u_int8_t	pads[3];	/* padding bytes (align to long) */
} ADW_SCSI_REQ_Q;

/*
 * scsi_status conditions
 */
#define SS_GOOD              0x00
#define SS_CHK_CONDITION     0x02
#define SS_CONDITION_MET     0x04
#define SS_TARGET_BUSY       0x08
#define SS_INTERMID          0x10
#define SS_INTERMID_COND_MET 0x14
#define SS_RSERV_CONFLICT    0x18
#define SS_CMD_TERMINATED    0x22
#define SS_QUEUE_FULL        0x28

/*
 * Microcode idle loop commands
 */
#define IDLE_CMD_COMPLETED           0
#define IDLE_CMD_STOP_CHIP           0x0001
#define IDLE_CMD_STOP_CHIP_SEND_INT  0x0002
#define IDLE_CMD_SEND_INT            0x0004
#define IDLE_CMD_ABORT               0x0008
#define IDLE_CMD_DEVICE_RESET        0x0010
#define IDLE_CMD_SCSI_RESET          0x0020

/*
 * AdvSendIdleCmd() flag definitions.
 */
#define ADW_NOWAIT     0x01

/*
 * Wait loop time out values.
 */
#define SCSI_WAIT_10_SEC             10         /* 10 seconds */
#define SCSI_MS_PER_SEC              1000       /* milliseconds per second */


/* Read byte from a register. */
#define ADW_READ_BYTE_REGISTER(iot, ioh, reg_off) \
	bus_space_read_1((iot), (ioh), (reg_off))

/* Write byte to a register. */
#define ADW_WRITE_BYTE_REGISTER(iot, ioh, reg_off, byte) \
	bus_space_write_1((iot), (ioh), (reg_off), (byte))

/* Read word (2 bytes) from a register. */
#define ADW_READ_WORD_REGISTER(iot, ioh, reg_off) \
	bus_space_read_2((iot), (ioh), (reg_off))

/* Write word (2 bytes) to a register. */
#define ADW_WRITE_WORD_REGISTER(iot, ioh, reg_off, word) \
	bus_space_write_2((iot), (ioh), (reg_off), (word))

/* Read byte from LRAM. */
#define ADW_READ_BYTE_LRAM(iot, ioh, addr, byte) \
do { \
	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr)); \
	(byte) = bus_space_read_1((iot), (ioh), IOPB_RAM_DATA); \
} while (0)

/* Write byte to LRAM. */
#define ADW_WRITE_BYTE_LRAM(iot, ioh, addr, byte) \
do { \
	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr)); \
	bus_space_write_1((iot), (ioh), IOPB_RAM_DATA, (byte)); \
} while (0)

/* Read word (2 bytes) from LRAM. */
#define ADW_READ_WORD_LRAM(iot, ioh, addr, word) \
do { \
	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr));  \
	(word) = bus_space_read_2((iot), (ioh), IOPW_RAM_DATA); \
} while (0)

/* Write word (2 bytes) to LRAM. */
#define ADW_WRITE_WORD_LRAM(iot, ioh, addr, word) \
do { \
	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr)); \
	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA, (word)); \
} while (0)

/* Write double word (4 bytes) to LRAM */
/* Because of unspecified C language ordering don't use auto-increment. */
#define ADW_WRITE_DWORD_LRAM(iot, ioh, addr, dword) \
do { \
	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr)); \
	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA, \
		(ushort) ((dword) & 0xFFFF)); \
	bus_space_write_2((iot), (ioh), IOPW_RAM_ADDR, (addr) + 2); \
	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA, \
			(ushort) ((dword >> 16) & 0xFFFF)); \
} while (0)

/* Read word (2 bytes) from LRAM assuming that the address is already set. */
#define ADW_READ_WORD_AUTO_INC_LRAM(iot, ioh) \
	bus_space_read_2((iot), (ioh), IOPW_RAM_DATA) \

/* Write word (2 bytes) to LRAM assuming that the address is already set. */
#define ADW_WRITE_WORD_AUTO_INC_LRAM(iot, ioh, word) \
	bus_space_write_2((iot), (ioh), IOPW_RAM_DATA, (word))

/*
 * Define macro to check for Condor signature.
 *
 * Evaluate to ADW_TRUE if a Condor chip is found the specified port
 * address 'iop_base'. Otherwise evalue to ADW_FALSE.
 */
#define ADW_FIND_SIGNATURE(iot, ioh) \
	(((ADW_READ_BYTE_REGISTER((iot), (ioh), IOPB_CHIP_ID_1) == \
		ADW_CHIP_ID_BYTE) && \
		(ADW_READ_WORD_REGISTER((iot), (ioh), IOPW_CHIP_ID_0) == \
		ADW_CHIP_ID_WORD)) ?  ADW_TRUE : ADW_FALSE)

/*
 * Define macro to Return the version number of the chip at 'iop_base'.
 *
 * The second parameter 'bus_type' is currently unused.
 */
#define ADW_GET_CHIP_VERSION(iot, ioh, bus_type) \
	ADW_READ_BYTE_REGISTER((iot), (ioh), IOPB_CHIP_TYPE_REV)

/*
 * Abort an SRB in the chip's RISC Memory. The 'srb_ptr' argument must
 * match the ASC_SCSI_REQ_Q 'srb_ptr' field.
 *
 * If the request has not yet been sent to the device it will simply be
 * aborted from RISC memory. If the request is disconnected it will be
 * aborted on reselection by sending an Abort Message to the target ID.
 *
 * Return value:
 *      ADW_TRUE(1) - Queue was successfully aborted.
 *      ADW_FALSE(0) - Queue was not found on the active queue list.
 */
#define ADW_ABORT_CCB(sc, ccb_ptr) \
	AdvSendIdleCmd((sc), (u_int16_t) IDLE_CMD_ABORT, \
		(ulong) (ccb_ptr), 0)

/*
 * Send a Bus Device Reset Message to the specified target ID.
 *
 * All outstanding commands will be purged if sending the
 * Bus Device Reset Message is successful.
 *
 * Return Value:
 *      ADW_TRUE(1) - All requests on the target are purged.
 *      ADW_FALSE(0) - Couldn't issue Bus Device Reset Message; Requests
 *                     are not purged.
 */
#define ADW_RESET_DEVICE(sc, target_id) \
	AdvSendIdleCmd((sc), (u_int16_t) IDLE_CMD_DEVICE_RESET, \
		(ulong) (target_id), 0)

/*
 * SCSI Wide Type definition.
 */
#define ADW_SCSI_BIT_ID_TYPE   ushort

/*
 * AdvInitScsiTarget() 'cntl_flag' options.
 */
#define ADW_SCAN_LUN           0x01
#define ADW_CAPINFO_NOLUN      0x02

/*
 * Convert target id to target id bit mask.
 */
#define ADW_TID_TO_TIDMASK(tid)   (0x01 << ((tid) & ADW_MAX_TID))

/*
 * ASC_SCSI_REQ_Q 'done_status' and 'host_status' return values.
 */

#define QD_NO_STATUS         0x00       /* Request not completed yet. */
#define QD_NO_ERROR          0x01
#define QD_ABORTED_BY_HOST   0x02
#define QD_WITH_ERROR        0x04

#define QHSTA_NO_ERROR              0x00
#define QHSTA_M_SEL_TIMEOUT         0x11
#define QHSTA_M_DATA_OVER_RUN       0x12
#define QHSTA_M_UNEXPECTED_BUS_FREE 0x13
#define QHSTA_M_QUEUE_ABORTED       0x15
#define QHSTA_M_SXFR_SDMA_ERR       0x16 /* SXFR_STATUS SCSI DMA Error */
#define QHSTA_M_SXFR_SXFR_PERR      0x17 /* SXFR_STATUS SCSI Bus Parity Error */
#define QHSTA_M_RDMA_PERR           0x18 /* RISC PCI DMA parity error */
#define QHSTA_M_SXFR_OFF_UFLW       0x19 /* SXFR_STATUS Offset Underflow */
#define QHSTA_M_SXFR_OFF_OFLW       0x20 /* SXFR_STATUS Offset Overflow */
#define QHSTA_M_SXFR_WD_TMO         0x21 /* SXFR_STATUS Watchdog Timeout */
#define QHSTA_M_SXFR_DESELECTED     0x22 /* SXFR_STATUS Deselected */
/* Note: QHSTA_M_SXFR_XFR_OFLW is identical to QHSTA_M_DATA_OVER_RUN. */
#define QHSTA_M_SXFR_XFR_OFLW       0x12 /* SXFR_STATUS Transfer Overflow */
#define QHSTA_M_SXFR_XFR_PH_ERR     0x24 /* SXFR_STATUS Transfer Phase Error */
#define QHSTA_M_SXFR_UNKNOWN_ERROR  0x25 /* SXFR_STATUS Unknown Error */
#define QHSTA_M_WTM_TIMEOUT         0x41
#define QHSTA_M_BAD_CMPL_STATUS_IN  0x42
#define QHSTA_M_NO_AUTO_REQ_SENSE   0x43
#define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44
#define QHSTA_M_INVALID_DEVICE      0x45 /* Bad target ID */

/*
 * SCSI Iquiry structure
 */

typedef struct
{
	u_int8_t	peri_dvc_type:5;
	u_int8_t	peri_qualifier:3;
} ASC_SCSI_INQ0;

typedef struct
{
	u_int8_t	dvc_type_modifier:7;
	u_int8_t	rmb:1;
} ASC_SCSI_INQ1;

typedef struct
{
	u_int8_t	ansi_apr_ver:3;
	u_int8_t	ecma_ver:3;
	u_int8_t	iso_ver:2;
} ASC_SCSI_INQ2;

typedef struct
{
	u_int8_t	rsp_data_fmt:4;
	u_int8_t	res:2;
	u_int8_t	TemIOP:1;
	u_int8_t	aenc:1;
} ASC_SCSI_INQ3;

typedef struct
{
	u_int8_t	StfRe:1;
	u_int8_t	CmdQue:1;
	u_int8_t	Reserved:1;
	u_int8_t	Linked:1;
	u_int8_t	Sync:1;
	u_int8_t	WBus16:1;
	u_int8_t	WBus32:1;
	u_int8_t	RelAdr:1;
} ASC_SCSI_INQ7;

typedef struct
{
	ASC_SCSI_INQ0	byte0;
	ASC_SCSI_INQ1	byte1;
	ASC_SCSI_INQ2	byte2;
	ASC_SCSI_INQ3	byte3;
	u_int8_t	add_len;
	u_int8_t	res1;
	u_int8_t	res2;
	ASC_SCSI_INQ7	byte7;
	u_int8_t	vendor_id[8];
	u_int8_t	product_id[16];
	u_int8_t	product_rev_level[4];
} ASC_SCSI_INQUIRY;


#define ASC_MAX_SENSE_LEN   32
#define ASC_MIN_SENSE_LEN   14

typedef struct asc_req_sense {
	u_int8_t	err_code:7;
	u_int8_t	info_valid:1;
	u_int8_t	segment_no;
	u_int8_t	sense_key:4;
	u_int8_t	reserved_bit:1;
	u_int8_t	sense_ILI:1;
	u_int8_t	sense_EOM:1;
	u_int8_t	file_mark:1;
	u_int8_t	info1[4];
	u_int8_t	add_sense_len;
	u_int8_t	cmd_sp_info[4];
	u_int8_t	asc;
	u_int8_t	ascq;
	u_int8_t	fruc;
	u_int8_t	sks_byte0:7;
	u_int8_t	sks_valid:1;
	u_int8_t	sks_bytes[2];
	u_int8_t	notused[2];
	u_int8_t	ex_sense_code;
	u_int8_t	info2[4];
} ASC_REQ_SENSE;


/*
 * Adv Library functions available to drivers.
 */

int	AdvInitFromEEP __P((ADW_SOFTC *));
int	AdvExeScsiQueue __P((ADW_SOFTC *, ADW_SCSI_REQ_Q *));
int	AdvISR __P((ADW_SOFTC *));
int	AdvSendIdleCmd __P((ADW_SOFTC *, u_int16_t, u_int32_t, int));
int	AdvInitGetConfig __P((ADW_SOFTC *));
int	AdvInitAsc3550Driver __P((ADW_SOFTC *));
void	AdvResetChip __P((bus_space_tag_t, bus_space_handle_t));
void	AdvResetSCSIBus __P((ADW_SOFTC *));
int	AdvResetCCB __P((ADW_SOFTC *));

#endif	/* _ADVANSYS_WIDE_LIBRARY_H_ */