jehanne/sys/include/disk.h

134 lines
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C
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#pragma src "/sys/src/libdisk"
#pragma lib "libdisk.a"
/* SCSI interface */
typedef struct Scsi Scsi;
struct Scsi {
QLock ql;
char* inquire;
int rawfd;
int nchange;
uint32_t changetime;
};
enum {
Sread = 0,
Swrite,
Snone,
};
char* scsierror(int, int);
int scsicmd(Scsi*, uint8_t*, int, void*, int, int);
int scsi(Scsi*, uint8_t*, int, void*, int, int);
Scsi* openscsi(char*);
void closescsi(Scsi*);
int scsiready(Scsi*);
extern int scsiverbose;
/* disk partition interface */
typedef struct Disk Disk;
struct Disk {
char *prefix;
char *part;
int fd;
int wfd;
int ctlfd;
int rdonly;
int type;
int64_t secs;
int64_t secsize;
int64_t size;
int64_t offset; /* within larger disk, perhaps */
int width; /* of disk size in bytes as decimal string */
int psecsize;
int physalign;
int c;
int h;
int s;
int chssrc;
};
Disk* opendisk(char*, int, int);
enum {
Tfile = 0,
Tsd,
Tfloppy,
Gpart = 0, /* partition info source */
Gdisk,
Gguess,
};
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 */
ScmdRformatcap = 0x23, /* read format capacity */
ScmdExtread = 0x28, /* extended read (10 bytes) */
ScmdRead16 = 0x88, /* long read (16 bytes) */
ScmdExtwrite = 0x2A, /* extended write (10 bytes) */
ScmdExtwritever = 0x2E, /* extended write and verify (10) */
ScmdWrite16 = 0x8A, /* long write (16 bytes) */
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 */
};
/* proto file parsing */
typedef void Protoenum(char *new, char *old, Dir *d, void *a);
typedef void Protowarn(char *msg, void *a);
int rdproto(char*, char*, Protoenum*, Protowarn*, void*);