typedef u_char physaddr[3];

/* $NetBSD: wdsreg.h,v 1.8 2005/12/11 12:22:03 christos Exp $ */

typedef u_char physaddr[3];
typedef u_char physlen[3];
#define ltophys _lto3b
#define phystol _3btol

/* WD7000 registers */
#define WDS_STAT 0 /* read */
#define WDS_IRQSTAT 1 /* read */

#define WDS_CMD 0 /* write */
#define WDS_IRQACK 1 /* write */
#define WDS_HCR 2 /* write */

/* WDS_STAT (read) defs */
#define WDSS_IRQ 0x80
#define WDSS_RDY 0x40
#define WDSS_REJ 0x20
#define WDSS_INIT 0x10

/* WDS_IRQSTAT (read) defs */
#define WDSI_MASK 0xc0
#define WDSI_ERR 0x00
#define WDSI_MFREE 0x80
#define WDSI_MSVC 0xc0

/* WDS_CMD (write) defs */
#define WDSC_NOOP 0x00
#define WDSC_INIT 0x01
#define WDSC_DISUNSOL 0x02
#define WDSC_ENAUNSOL 0x03
#define WDSC_IRQMFREE 0x04
#define WDSC_SCSIRESETSOFT 0x05
#define WDSC_SCSIRESETHARD 0x06
#define WDSC_MSTART(m) (0x80 + (m))
#define WDSC_MMSTART(m) (0xc0 + (m))

/* WDS_HCR (write) defs */
#define WDSH_IRQEN 0x08
#define WDSH_DRQEN 0x04
#define WDSH_SCSIRESET 0x02
#define WDSH_ASCRESET 0x01

#define WDS_NSEG 17

struct wds_scat_gath {
physlen seg_len;
physaddr seg_addr;
};

struct wds_cmd {
u_char opcode;
u_char targ;
u_char scb[12];
u_char stat;
u_char venderr;
physlen len;
physaddr data;
physaddr link;
u_char write;
u_char xx[6];
};

struct wds_scb {
struct wds_cmd cmd;
struct wds_cmd sense;

struct wds_scat_gath scat_gath[WDS_NSEG];
struct scsi_sense_data sense_data;

TAILQ_ENTRY(wds_scb) chain;
struct wds_scb *nexthash;
u_long hashkey;
struct scsipi_xfer *xs;
int flags;
#define SCB_ALLOC 0x01
#define SCB_ABORT 0x02
#ifdef WDSDIAG
#define SCB_SENDING 0x04
#endif
#define SCB_POLLED 0x08
#define SCB_SENSE 0x10
#define SCB_DONE 0x20 /* for internal commands only */
#define SCB_BUFFER 0x40
int timeout;

/*
* DMA maps used by the SCB. These maps are created in
* wds_init_scb().
*/

/*
* The DMA map maps an individual SCB. This map is permanently
* loaded in wds_init_scb().
*/
bus_dmamap_t dmamap_self;

/*
* This map maps the buffer involved in the transfer.
* Its contents are loaded into "scat_gath" above.
*/
bus_dmamap_t dmamap_xfer;
};

#define WDSX_SCSICMD 0x00
#define WDSX_SCSISG 0x01
#define WDSX_OPEN_RCVBUF 0x80
#define WDSX_RCV_CMD 0x81
#define WDSX_RCV_DATA 0x82
#define WDSX_RCV_DATASTAT 0x83
#define WDSX_SND_DATA 0x84
#define WDSX_SND_DATASTAT 0x85
#define WDSX_SND_CMDSTAT 0x86
#define WDSX_READINIT 0x88
#define WDSX_READSCSIID 0x89
#define WDSX_SETUNSOLIRQMASK 0x8a
#define WDSX_GETUNSOLIRQMASK 0x8b
#define WDSX_GETFIRMREV 0x8c
#define WDSX_EXECDIAG 0x8d
#define WDSX_SETEXECPARM 0x8e
#define WDSX_GETEXECPARM 0x8f

struct wds_mbx_out {
u_char cmd;
physaddr scb_addr;
};

struct wds_mbx_in {
u_char stat;
physaddr scb_addr;
};

/*
* mbo.cmd values
*/
#define WDS_MBO_FREE 0x0 /* MBO entry is free */
#define WDS_MBO_START 0x1 /* MBO activate entry */

/*
* mbi.stat values
*/
#define WDS_MBI_FREE 0x00 /* MBI entry is free */
#define WDS_MBI_OK 0x01 /* completed without error */
#define WDS_MBI_OKERR 0x02 /* completed with error */
#define WDS_MBI_ETIME 0x04
#define WDS_MBI_ERESET 0x05
#define WDS_MBI_ETARCMD 0x06
#define WDS_MBI_ERESEL 0x80
#define WDS_MBI_ESEL 0x81
#define WDS_MBI_EABORT 0x82
#define WDS_MBI_ESRESET 0x83
#define WDS_MBI_EHRESET 0x84

struct wds_setup {
u_char opcode;
u_char scsi_id;
u_char buson_t;
u_char busoff_t;
u_char xx;
physaddr mbaddr;
u_char nomb;
u_char nimb;
};