jehanne/sys/include/usb/scsireq.h

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/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
/*
* 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;
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 {
uint8_t *p;
int32_t count;
uint8_t write;
} ScsiPtr;
typedef struct {
int flags;
char *unit; /* unit directory */
int lun;
uint32_t lbsize;
uint64_t offset; /* in blocks of lbsize bytes */
int fd;
Umsc *umsc; /* lun */
ScsiPtr cmd;
ScsiPtr data;
int status; /* returned status */
uint8_t sense[MaxDirData]; /* returned sense data */
uint8_t 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 {
/* 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, /* 2⁲ⁱ - 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 uint8_t* */
#define GETBELONG(p) ((uint32_t)(p)[0]<<24 | (uint32_t)(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) ((uint32_t)(p)[0]<<16 | (p)[1]<<8 | (p)[2])
#define PUTBE24(p, ul) ((p)[0] = (ul)>>16, (p)[1] = (ul)>>8, (p)[2] = (ul))
int32_t SRready(ScsiReq*);
int32_t SRrewind(ScsiReq*);
int32_t SRreqsense(ScsiReq*);
int32_t SRformat(ScsiReq*);
int32_t SRrblimits(ScsiReq*, uint8_t*);
int32_t SRread(ScsiReq*, void*, int32_t);
int32_t SRwrite(ScsiReq*, void*, int32_t);
int32_t SRseek(ScsiReq*, int32_t, int);
int32_t SRfilemark(ScsiReq*, uint32_t);
int32_t SRspace(ScsiReq*, uint8_t, int32_t);
int32_t SRinquiry(ScsiReq*);
int32_t SRmodeselect6(ScsiReq*, uint8_t*, int32_t);
int32_t SRmodeselect10(ScsiReq*, uint8_t*, int32_t);
int32_t SRmodesense6(ScsiReq*, uint8_t, uint8_t*, int32_t);
int32_t SRmodesense10(ScsiReq*, uint8_t, uint8_t*, int32_t);
int32_t SRstart(ScsiReq*, uint8_t);
int32_t SRrcapacity(ScsiReq*, uint8_t*);
int32_t SRrcapacity16(ScsiReq*, uint8_t*);
int32_t SRblank(ScsiReq*, uint8_t, uint8_t); /* MMC CD-R/CD-RW commands */
int32_t SRsynccache(ScsiReq*);
int32_t SRTOC(ScsiReq*, void*, int, uint8_t, uint8_t);
int32_t SRrdiscinfo(ScsiReq*, void*, int);
int32_t SRrtrackinfo(ScsiReq*, void*, int, int);
int32_t SRcdpause(ScsiReq*, int); /* MMC CD audio commands */
int32_t SRcdstop(ScsiReq*);
int32_t SRcdload(ScsiReq*, int, int);
int32_t SRcdplay(ScsiReq*, int, int32_t, int32_t);
int32_t SRcdstatus(ScsiReq*, uint8_t*, int);
int32_t SRgetconf(ScsiReq*, uint8_t*, int);
/* old CD-R/CD-RW commands */
int32_t SRfwaddr(ScsiReq*, uint8_t, uint8_t, uint8_t, uint8_t*);
int32_t SRtreserve(ScsiReq*, int32_t);
int32_t SRtinfo(ScsiReq*, uint8_t, uint8_t*);
int32_t SRwtrack(ScsiReq*, void*, int32_t, uint8_t, uint8_t);
int32_t SRmload(ScsiReq*, uint8_t);
int32_t SRfixation(ScsiReq*, uint8_t);
int32_t SReinitialise(ScsiReq*); /* CHANGER commands */
int32_t SRestatus(ScsiReq*, uint8_t, uint8_t*, int);
int32_t SRmmove(ScsiReq*, int, int, int, int);
int32_t SRrequest(ScsiReq*);
int SRclose(ScsiReq*);
int SRopenraw(ScsiReq*, char*);
int SRopen(ScsiReq*, char*);
void makesense(ScsiReq*);
int32_t umsrequest(struct Umsc*, ScsiPtr*, ScsiPtr*, int*);
void scsidebug(int);
char* scsierrmsg(int n);