/*      $NetBSD: scsireg.h,v 1.4 2015/02/14 05:03:09 tsutsui Exp $      */

/*
* Copyright (c) 1990, 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Van Jacobson of Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
*      @(#)scsireg.h   8.1 (Berkeley) 6/10/93
*/

/*
* MB89352 SCSI Protocol Controller Hardware Description.
*/

struct scsidevice {
       volatile uint8_t        scsi_bdid, p0, p1, p2;          /* 000 */
       volatile uint8_t        scsi_sctl, p3, p4, p5;          /* 004 */
#define                         SCTL_DISABLE    0x80
#define                         SCTL_CTRLRST    0x40
#define                         SCTL_DIAG       0x20
#define                         SCTL_ABRT_ENAB  0x10
#define                         SCTL_PARITY_ENAB 0x08
#define                         SCTL_SEL_ENAB   0x04
#define                         SCTL_RESEL_ENAB 0x02
#define                         SCTL_INTR_ENAB  0x01
       volatile uint8_t        scsi_scmd, p6, p7, p8;          /* 008 */
#define                         SCMD_RST        0x10
#define                         SCMD_ICPT_XFR   0x08
#define                         SCMD_PROG_XFR   0x04
#define                         SCMD_PAD        0x01    /* if initiator */
#define                         SCMD_PERR_STOP  0x01    /* if target */
                               /* command codes */
#define                         SCMD_BUS_REL    0x00
#define                         SCMD_SELECT     0x20
#define                         SCMD_RST_ATN    0x40
#define                         SCMD_SET_ATN    0x60
#define                         SCMD_XFR        0x80
#define                         SCMD_XFR_PAUSE  0xa0
#define                         SCMD_RST_ACK    0xc0
#define                         SCMD_SET_ACK    0xe0
       volatile uint8_t        scsi_tmod, p9, p10, p11;        /* 00C */
#define                         TMOD_SYNC       0x80
       volatile uint8_t        scsi_ints, p12, p13, p14;       /* 010 */
#define                         INTS_SEL        0x80
#define                         INTS_RESEL      0x40
#define                         INTS_DISCON     0x20
#define                         INTS_CMD_DONE   0x10
#define                         INTS_SRV_REQ    0x08
#define                         INTS_TIMEOUT    0x04
#define                         INTS_HARD_ERR   0x02
#define                         INTS_RST        0x01
       volatile uint8_t        scsi_psns, p15, p16, p17;       /* 014 */
#define                         PSNS_REQ        0x80
#define                         PSNS_ACK        0x40
#define                         PSNS_ATN        0x20
#define                         PSNS_SEL        0x10
#define                         PSNS_BSY        0x08
#define                         scsi_sdgc scsi_psns
#define                         SDGC_XFER_ENAB  0x20
       volatile uint8_t        scsi_ssts, p18, p19, p20;       /* 018 */
#define                         SSTS_INITIATOR  0x80
#define                         SSTS_TARGET     0x40
#define                         SSTS_BUSY       0x20
#define                         SSTS_XFR        0x10
#define                         SSTS_ACTIVE     (SSTS_INITIATOR|SSTS_XFR)
#define                         SSTS_RST        0x08
#define                         SSTS_TCZERO     0x04
#define                         SSTS_DREG_FULL  0x02
#define                         SSTS_DREG_EMPTY 0x01
       volatile uint8_t        scsi_serr, p21, p22, p23;       /* 01C */
#define                         SERR_SCSI_PAR   0x80
#define                         SERR_SPC_PAR    0x40
#define                         SERR_XFER_OUT   0x20
#define                         SERR_TC_PAR     0x08
#define                         SERR_PHASE_ERR  0x04
#define                         SERR_SHORT_XFR  0x02
#define                         SERR_OFFSET     0x01
       volatile uint8_t        scsi_pctl, p24, p25, p26;       /* 020 */
#define                         PCTL_BFINT_ENAB 0x80
       volatile uint8_t        scsi_mbc,  p27, p28, p29;       /* 024 */
       volatile uint8_t        scsi_dreg, p30, p31, p32;       /* 028 */
       volatile uint8_t        scsi_temp, p33, p34, p35;       /* 02C */
       volatile uint8_t        scsi_tch,  p36, p37, p38;       /* 030 */
       volatile uint8_t        scsi_tcm,  p39, p40, p41;       /* 034 */
       volatile uint8_t        scsi_tcl,  p42, p43, p44;       /* 038 */
       volatile uint8_t        scsi_exbf, p45, p46, p47;       /* 03C */
};

/* psns/pctl phase lines as bits */
#define PHASE_MSG       0x04
#define PHASE_CD        0x02            /* =1 if 'command' */
#define PHASE_IO        0x01            /* =1 if data inbound */
/* Phase lines as values */
#define PHASE           0x07            /* mask for psns/pctl phase */
#define DATA_OUT_PHASE  0x00
#define DATA_IN_PHASE   0x01
#define CMD_PHASE       0x02
#define STATUS_PHASE    0x03
#define BUS_FREE_PHASE  0x04
#define ARB_SEL_PHASE   0x05    /* Fuji chip combines arbitration with sel. */
#define MESG_OUT_PHASE  0x06
#define MESG_IN_PHASE   0x07

/* SCSI Messages */

#define MSG_CMD_COMPLETE        0x00
#define MSG_EXT_MESSAGE         0x01
#define MSG_SAVE_DATA_PTR       0x02
#define MSG_RESTORE_PTR         0x03
#define MSG_DISCONNECT          0x04
#define MSG_INIT_DETECT_ERROR   0x05
#define MSG_ABORT               0x06
#define MSG_REJECT              0x07
#define MSG_NOOP                0x08
#define MSG_PARITY_ERROR        0x09
#define MSG_BUS_DEVICE_RESET    0x0C
#define MSG_IDENTIFY            0x80
#define MSG_IDENTIFY_DR         0xc0    /* (disconnect/reconnect allowed) */
#define MSG_SYNC_REQ            0x01

/* SCSI Commands */

#define CMD_TEST_UNIT_READY     0x00
#define CMD_REQUEST_SENSE       0x03
#define CMD_INQUIRY             0x12
#define CMD_SEND_DIAGNOSTIC     0x1D

#define CMD_REWIND              0x01
#define CMD_FORMAT_UNIT         0x04
#define CMD_READ_BLOCK_LIMITS   0x05
#define CMD_REASSIGN_BLOCKS     0x07
#define CMD_READ                0x08
#define CMD_WRITE               0x0A
#define CMD_WRITE_FILEMARK      0x10
#define CMD_SPACE               0x11
#define CMD_MODE_SELECT         0x15
#define CMD_RELEASE_UNIT        0x17
#define CMD_ERASE               0x19
#define CMD_MODE_SENSE          0x1A
#define CMD_LOADUNLOAD          0x1B
#define CMD_RECEIVE_DIAG        0x1C
#define CMD_SEND_DIAG           0x1D
#define CMD_P_A_MEDIA_REMOVAL   0x1E
#define CMD_READ_CAPACITY       0x25
#define CMD_READ_EXT            0x28
#define CMD_WRITE_EXT           0x2A
#define CMD_READ_DEFECT_DATA    0x37
#define         SD_MANUFAC_DEFECTS      0x14000000
#define         SD_GROWN_DEFECTS        0x0c000000
#define CMD_READ_BUFFER         0x3B
#define CMD_WRITE_BUFFER        0x3C
#define CMD_READ_FULL           0xF0
#define CMD_MEDIA_TEST          0xF1
#define CMD_ACCESS_LOG          0xF2
#define CMD_WRITE_FULL          0xFC
#define CMD_MANAGE_PRIMARY      0xFD
#define CMD_EXECUTE_DATA        0xFE

/* SCSI status bits */

#define STS_CHECKCOND   0x02    /* Check Condition (ie., read sense) */
#define STS_CONDMET     0x04    /* Condition Met (ie., search worked) */
#define STS_BUSY        0x08
#define STS_INTERMED    0x10    /* Intermediate status sent */
#define STS_EXT         0x80    /* Extended status valid */

/* command descriptor blocks */

struct scsi_cdb6 {
       uint8_t cmd;            /* command code */
       uint8_t lun:  3,        /* logical unit on ctlr */
               lbah: 5;        /* msb of read/write logical block addr */
       uint8_t lbam;           /* middle byte of l.b.a. */
       uint8_t lbal;           /* lsb of l.b.a. */
       uint8_t len;            /* transfer length */
       uint8_t xtra;
};

struct scsi_cdb10 {
       uint8_t cmd;            /* command code */
       uint8_t lun: 3,         /* logical unit on ctlr */
                  : 4,
               rel: 1;         /* l.b.a. is relative addr if =1 */
       uint8_t lbah;           /* msb of read/write logical block addr */
       uint8_t lbahm;          /* high middle byte of l.b.a. */
       uint8_t lbalm;          /* low middle byte of l.b.a. */
       uint8_t lbal;           /* lsb of l.b.a. */
       uint8_t reserved;
       uint8_t lenh;           /* msb transfer length */
       uint8_t lenl;           /* lsb transfer length */
       uint8_t xtra;
};

/* basic sense data */

struct scsi_sense {
       uint8_t valid: 1,       /* l.b.a. is valid */
               class: 3,
               code:  4;
       uint8_t vu:    4,       /* vendor unique */
               lbah:  4;
       uint8_t lbam;
       uint8_t lbal;
};

struct scsi_xsense {
       uint8_t valid: 1,       /* l.b.a. is valid */
               class: 3,
               code:  4;
       uint8_t segment;
       uint8_t filemark: 1,
               eom:      1,
               ili:      1,    /* illegal length indicator */
               rsvd:     1,
               key:      4;
       uint8_t info1;
       uint8_t info2;
       uint8_t info3;
       uint8_t info4;
       uint8_t len;            /* additional sense length */
};

/* inquiry data */
struct scsi_inquiry {
       uint8_t type;
       uint8_t qual;
       uint8_t version;
       uint8_t rsvd;
       uint8_t len;
       char    class[3];
       char    vendor_id[8];
       char    product_id[16];
       char    rev[4];
};

struct scsi_generic_cdb {
       int len;                /* cdb length (in bytes) */
       uint8_t cdb[28];        /* cdb to use on next read/write */
};

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