ref: 52cacba37c6f3a125ef931afa4b9c2cdb7438fef
dir: /sys/src/cmd/nusb/disk/scsireq.h/
/*
* This is /sys/src/cmd/scuzz/scsireq.h
* changed to add more debug support, and to keep
* disk compiling without a scuzz that includes these changes.
*
* scsireq.h is also included by usb/disk and cdfs.
*/
typedef struct Umsc Umsc;
#pragma incomplete Umsc
enum { /* fundamental constants/defaults */
MaxDirData = 255, /* max. direct data returned */
/*
* Because we are accessed via devmnt, we can never get i/o counts
* larger than 8216 (Msgsize and devmnt's offered iounit) - 24
* (IOHDRSZ) = 8K.
*/
Maxiosize = 8216 - IOHDRSZ, /* max. I/O transfer size */
};
typedef struct {
uchar *p;
long count;
uchar write;
} ScsiPtr;
typedef struct {
int flags;
char *unit; /* unit directory */
int lun;
ulong lbsize;
uvlong offset; /* in blocks of lbsize bytes */
int fd;
Umsc *umsc; /* lun */
ScsiPtr cmd;
ScsiPtr data;
int status; /* returned status */
uchar sense[MaxDirData]; /* returned sense data */
uchar inquiry[MaxDirData]; /* returned inquiry data */
int readblock; /* flag: read a block since open */
} ScsiReq;
enum { /* software flags */
Fopen = 0x0001, /* open */
Fseqdev = 0x0002, /* sequential-access device */
Fwritten = 0x0004, /* device written */
Fronly = 0x0008, /* device is read-only */
Fwormdev = 0x0010, /* write-once read-multiple device */
Fprintdev = 0x0020, /* printer */
Fbfixed = 0x0040, /* fixed block size */
Fchanger = 0x0080, /* medium-changer device */
Finqok = 0x0100, /* inquiry data is OK */
Fmode6 = 0x0200, /* use 6-byte modeselect */
Frw10 = 0x0400, /* use 10-byte read/write */
Fusb = 0x0800, /* USB transparent scsi */
};
enum {
STnomem =-4, /* buffer allocation failed */
STharderr =-3, /* controller error of some kind */
STtimeout =-2, /* bus timeout */
STok = 0, /* good */
STcheck = 0x02, /* check condition */
STcondmet = 0x04, /* condition met/good */
STbusy = 0x08, /* busy */
STintok = 0x10, /* intermediate/good */
STintcondmet = 0x14, /* intermediate/condition met/good */
STresconf = 0x18, /* reservation conflict */
STterminated = 0x22, /* command terminated */
STqfull = 0x28, /* queue full */
};
enum { /* status */
Status_SD = 0x80, /* sense-data available */
Status_SW = 0x83, /* internal software error */
Status_BADARG = 0x84, /* bad argument to request */
Status_RO = 0x85, /* device is read-only */
};
enum { /* SCSI command codes */
ScmdTur = 0x00, /* test unit ready */
ScmdRewind = 0x01, /* rezero/rewind */
ScmdRsense = 0x03, /* request sense */
ScmdFormat = 0x04, /* format unit */
ScmdRblimits = 0x05, /* read block limits */
ScmdRead = 0x08, /* read */
ScmdWrite = 0x0A, /* write */
ScmdSeek = 0x0B, /* seek */
ScmdFmark = 0x10, /* write filemarks */
ScmdSpace = 0x11, /* space forward/backward */
ScmdInq = 0x12, /* inquiry */
ScmdMselect6 = 0x15, /* mode select */
ScmdMselect10 = 0x55, /* mode select */
ScmdMsense6 = 0x1A, /* mode sense */
ScmdMsense10 = 0x5A, /* mode sense */
ScmdStart = 0x1B, /* start/stop unit */
ScmdRcapacity = 0x25, /* read capacity */
ScmdRcapacity16 = 0x9e, /* long read capacity */
ScmdExtread = 0x28, /* extended read */
ScmdExtwrite = 0x2A, /* extended write */
ScmdExtseek = 0x2B, /* extended seek */
ScmdSynccache = 0x35, /* flush cache */
ScmdRTOC = 0x43, /* read TOC data */
ScmdRdiscinfo = 0x51, /* read disc information */
ScmdRtrackinfo = 0x52, /* read track information */
ScmdReserve = 0x53, /* reserve track */
ScmdBlank = 0xA1, /* blank *-RW media */
ScmdCDpause = 0x4B, /* pause/resume */
ScmdCDstop = 0x4E, /* stop play/scan */
ScmdCDplay = 0xA5, /* play audio */
ScmdCDload = 0xA6, /* load/unload */
ScmdCDscan = 0xBA, /* fast forward/reverse */
ScmdCDstatus = 0xBD, /* mechanism status */
Scmdgetconf = 0x46, /* get configuration */
ScmdEInitialise = 0x07, /* initialise element status */
ScmdMMove = 0xA5, /* move medium */
ScmdEStatus = 0xB8, /* read element status */
ScmdMExchange = 0xA6, /* exchange medium */
ScmdEposition = 0x2B, /* position to element */
ScmdReadDVD = 0xAD, /* read dvd structure */
ScmdReportKey = 0xA4, /* read dvd key */
ScmdSendKey = 0xA3, /* write dvd key */
ScmdClosetracksess= 0x5B,
ScmdRead12 = 0xA8,
ScmdSetcdspeed = 0xBB,
ScmdReadcd = 0xBE,
/* vendor-specific */
ScmdFwaddr = 0xE2, /* first writeable address */
ScmdTreserve = 0xE4, /* reserve track */
ScmdTinfo = 0xE5, /* read track info */
ScmdTwrite = 0xE6, /* write track */
ScmdMload = 0xE7, /* medium load/unload */
ScmdFixation = 0xE9, /* fixation */
};
enum {
/* sense data byte 0 */
Sd0valid = 0x80, /* valid sense data present */
/* sense data byte 2 */
/* incorrect-length indicator, difference in bytes 3—6 */
Sd2ili = 0x20,
Sd2eom = 0x40, /* end of medium (tape) */
Sd2filemark = 0x80, /* at a filemark (tape) */
/* command byte 1 */
Cmd1fixed = 1, /* use fixed-length blocks */
Cmd1sili = 2, /* don't set Sd2ili */
/* limit of block #s in 24-bit ccbs */
Max24off = (1<<21) - 1, /* 2²¹ - 1 */
/* mode pages */
Allmodepages = 0x3F,
};
/* scsi device types, from the scsi standards */
enum {
Devdir, /* usually disk */
Devseq, /* usually tape */
Devprint,
Dev3,
Devworm, /* also direct, but special */
Devcd, /* also direct */
Dev6,
Devmo, /* also direct */
Devjuke,
};
/* p arguments should be of type uchar* */
#define GETBELONG(p) ((ulong)(p)[0]<<24 | (ulong)(p)[1]<<16 | (p)[2]<<8 | (p)[3])
#define PUTBELONG(p, ul) ((p)[0] = (ul)>>24, (p)[1] = (ul)>>16, \
(p)[2] = (ul)>>8, (p)[3] = (ul))
#define GETBE24(p) ((ulong)(p)[0]<<16 | (p)[1]<<8 | (p)[2])
#define PUTBE24(p, ul) ((p)[0] = (ul)>>16, (p)[1] = (ul)>>8, (p)[2] = (ul))
long SRready(ScsiReq*);
long SRrewind(ScsiReq*);
long SRreqsense(ScsiReq*);
long SRformat(ScsiReq*);
long SRrblimits(ScsiReq*, uchar*);
long SRread(ScsiReq*, void*, long);
long SRwrite(ScsiReq*, void*, long);
long SRseek(ScsiReq*, long, int);
long SRfilemark(ScsiReq*, ulong);
long SRspace(ScsiReq*, uchar, long);
long SRinquiry(ScsiReq*);
long SRmodeselect6(ScsiReq*, uchar*, long);
long SRmodeselect10(ScsiReq*, uchar*, long);
long SRmodesense6(ScsiReq*, uchar, uchar*, long);
long SRmodesense10(ScsiReq*, uchar, uchar*, long);
long SRstart(ScsiReq*, uchar);
long SRrcapacity(ScsiReq*, uchar*);
long SRrcapacity16(ScsiReq*, uchar*);
long SRblank(ScsiReq*, uchar, uchar); /* MMC CD-R/CD-RW commands */
long SRsynccache(ScsiReq*);
long SRTOC(ScsiReq*, void*, int, uchar, uchar);
long SRrdiscinfo(ScsiReq*, void*, int);
long SRrtrackinfo(ScsiReq*, void*, int, int);
long SRcdpause(ScsiReq*, int); /* MMC CD audio commands */
long SRcdstop(ScsiReq*);
long SRcdload(ScsiReq*, int, int);
long SRcdplay(ScsiReq*, int, long, long);
long SRcdstatus(ScsiReq*, uchar*, int);
long SRgetconf(ScsiReq*, uchar*, int);
/* old CD-R/CD-RW commands */
long SRfwaddr(ScsiReq*, uchar, uchar, uchar, uchar*);
long SRtreserve(ScsiReq*, long);
long SRtinfo(ScsiReq*, uchar, uchar*);
long SRwtrack(ScsiReq*, void*, long, uchar, uchar);
long SRmload(ScsiReq*, uchar);
long SRfixation(ScsiReq*, uchar);
long SReinitialise(ScsiReq*); /* CHANGER commands */
long SRestatus(ScsiReq*, uchar, uchar*, int);
long SRmmove(ScsiReq*, int, int, int, int);
long SRrequest(ScsiReq*);
int SRclose(ScsiReq*);
int SRopenraw(ScsiReq*, char*);
int SRopen(ScsiReq*, char*);
void makesense(ScsiReq*);
long umsrequest(struct Umsc*, ScsiPtr*, ScsiPtr*, int*);
void scsidebug(int);
char* scsierrmsg(int n);