first usable version of kernel and commands
After an year of hard work, this is a first "usable" version of Jehanne.
This commit is contained in:
184
sys/include/usb/scsireq.h
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184
sys/include/usb/scsireq.h
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/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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/*
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* This is /sys/src/cmd/scuzz/scsireq.h
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* changed to add more debug support, and to keep
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* disk compiling without a scuzz that includes these changes.
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*
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* scsireq.h is also included by usb/disk and cdfs.
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*/
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typedef struct Umsc Umsc;
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enum { /* fundamental constants/defaults */
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MaxDirData = 255, /* max. direct data returned */
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/*
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* Because we are accessed via devmnt, we can never get i/o counts
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* larger than 8216 (Msgsize and devmnt's offered iounit) - 24
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* (IOHDRSZ) = 8K.
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*/
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Maxiosize = 8216 - IOHDRSZ, /* max. I/O transfer size */
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};
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typedef struct {
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uint8_t *p;
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int32_t count;
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uint8_t write;
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} ScsiPtr;
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typedef struct {
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int flags;
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char *unit; /* unit directory */
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int lun;
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uint32_t lbsize;
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uint64_t offset; /* in blocks of lbsize bytes */
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int fd;
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Umsc *umsc; /* lun */
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ScsiPtr cmd;
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ScsiPtr data;
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int status; /* returned status */
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uint8_t sense[MaxDirData]; /* returned sense data */
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uint8_t inquiry[MaxDirData]; /* returned inquiry data */
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int readblock; /* flag: read a block since open */
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} ScsiReq;
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enum { /* software flags */
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Fopen = 0x0001, /* open */
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Fseqdev = 0x0002, /* sequential-access device */
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Fwritten = 0x0004, /* device written */
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Fronly = 0x0008, /* device is read-only */
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Fwormdev = 0x0010, /* write-once read-multiple device */
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Fprintdev = 0x0020, /* printer */
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Fbfixed = 0x0040, /* fixed block size */
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Fchanger = 0x0080, /* medium-changer device */
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Finqok = 0x0100, /* inquiry data is OK */
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Fmode6 = 0x0200, /* use 6-byte modeselect */
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Frw10 = 0x0400, /* use 10-byte read/write */
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Fusb = 0x0800, /* USB transparent scsi */
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};
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enum {
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STnomem =-4, /* buffer allocation failed */
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STharderr =-3, /* controller error of some kind */
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STtimeout =-2, /* bus timeout */
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STok = 0, /* good */
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STcheck = 0x02, /* check condition */
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STcondmet = 0x04, /* condition met/good */
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STbusy = 0x08, /* busy */
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STintok = 0x10, /* intermediate/good */
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STintcondmet = 0x14, /* intermediate/condition met/good */
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STresconf = 0x18, /* reservation conflict */
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STterminated = 0x22, /* command terminated */
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STqfull = 0x28, /* queue full */
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};
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enum { /* status */
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Status_SD = 0x80, /* sense-data available */
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Status_SW = 0x83, /* internal software error */
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Status_BADARG = 0x84, /* bad argument to request */
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Status_RO = 0x85, /* device is read-only */
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};
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enum {
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/* sense data byte 0 */
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Sd0valid = 0x80, /* valid sense data present */
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/* sense data byte 2 */
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/* incorrect-length indicator, difference in bytes 3—6 */
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Sd2ili = 0x20,
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Sd2eom = 0x40, /* end of medium (tape) */
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Sd2filemark = 0x80, /* at a filemark (tape) */
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/* command byte 1 */
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Cmd1fixed = 1, /* use fixed-length blocks */
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Cmd1sili = 2, /* don't set Sd2ili */
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/* limit of block #s in 24-bit ccbs */
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Max24off = (1<<21) - 1, /* 2ⁱ - 1 */
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/* mode pages */
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Allmodepages = 0x3F,
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};
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/* scsi device types, from the scsi standards */
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enum {
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Devdir, /* usually disk */
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Devseq, /* usually tape */
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Devprint,
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Dev3,
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Devworm, /* also direct, but special */
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Devcd, /* also direct */
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Dev6,
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Devmo, /* also direct */
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Devjuke,
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};
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/* p arguments should be of type uint8_t* */
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#define GETBELONG(p) ((uint32_t)(p)[0]<<24 | (uint32_t)(p)[1]<<16 | (p)[2]<<8 | (p)[3])
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#define PUTBELONG(p, ul) ((p)[0] = (ul)>>24, (p)[1] = (ul)>>16, \
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(p)[2] = (ul)>>8, (p)[3] = (ul))
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#define GETBE24(p) ((uint32_t)(p)[0]<<16 | (p)[1]<<8 | (p)[2])
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#define PUTBE24(p, ul) ((p)[0] = (ul)>>16, (p)[1] = (ul)>>8, (p)[2] = (ul))
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int32_t SRready(ScsiReq*);
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int32_t SRrewind(ScsiReq*);
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int32_t SRreqsense(ScsiReq*);
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int32_t SRformat(ScsiReq*);
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int32_t SRrblimits(ScsiReq*, uint8_t*);
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int32_t SRread(ScsiReq*, void*, int32_t);
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int32_t SRwrite(ScsiReq*, void*, int32_t);
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int32_t SRseek(ScsiReq*, int32_t, int);
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int32_t SRfilemark(ScsiReq*, uint32_t);
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int32_t SRspace(ScsiReq*, uint8_t, int32_t);
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int32_t SRinquiry(ScsiReq*);
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int32_t SRmodeselect6(ScsiReq*, uint8_t*, int32_t);
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int32_t SRmodeselect10(ScsiReq*, uint8_t*, int32_t);
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int32_t SRmodesense6(ScsiReq*, uint8_t, uint8_t*, int32_t);
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int32_t SRmodesense10(ScsiReq*, uint8_t, uint8_t*, int32_t);
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int32_t SRstart(ScsiReq*, uint8_t);
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int32_t SRrcapacity(ScsiReq*, uint8_t*);
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int32_t SRrcapacity16(ScsiReq*, uint8_t*);
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int32_t SRblank(ScsiReq*, uint8_t, uint8_t); /* MMC CD-R/CD-RW commands */
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int32_t SRsynccache(ScsiReq*);
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int32_t SRTOC(ScsiReq*, void*, int, uint8_t, uint8_t);
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int32_t SRrdiscinfo(ScsiReq*, void*, int);
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int32_t SRrtrackinfo(ScsiReq*, void*, int, int);
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int32_t SRcdpause(ScsiReq*, int); /* MMC CD audio commands */
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int32_t SRcdstop(ScsiReq*);
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int32_t SRcdload(ScsiReq*, int, int);
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int32_t SRcdplay(ScsiReq*, int, int32_t, int32_t);
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int32_t SRcdstatus(ScsiReq*, uint8_t*, int);
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int32_t SRgetconf(ScsiReq*, uint8_t*, int);
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/* old CD-R/CD-RW commands */
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int32_t SRfwaddr(ScsiReq*, uint8_t, uint8_t, uint8_t, uint8_t*);
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int32_t SRtreserve(ScsiReq*, int32_t);
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int32_t SRtinfo(ScsiReq*, uint8_t, uint8_t*);
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int32_t SRwtrack(ScsiReq*, void*, int32_t, uint8_t, uint8_t);
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int32_t SRmload(ScsiReq*, uint8_t);
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int32_t SRfixation(ScsiReq*, uint8_t);
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int32_t SReinitialise(ScsiReq*); /* CHANGER commands */
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int32_t SRestatus(ScsiReq*, uint8_t, uint8_t*, int);
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int32_t SRmmove(ScsiReq*, int, int, int, int);
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int32_t SRrequest(ScsiReq*);
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int SRclose(ScsiReq*);
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int SRopenraw(ScsiReq*, char*);
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int SRopen(ScsiReq*, char*);
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void makesense(ScsiReq*);
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int32_t umsrequest(struct Umsc*, ScsiPtr*, ScsiPtr*, int*);
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void scsidebug(int);
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char* scsierrmsg(int n);
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