Subversion Repositories planix.SVN

#pragma src "/sys/src/libdisk"
#pragma lib "libdisk.a"

/* SCSI interface */
typedef struct Scsi Scsi;
struct Scsi {
        QLock;
        char*   inquire;
        int     rawfd;
        int     nchange;
        ulong   changetime;
};

enum {
        Sread = 0,
        Swrite,
        Snone,
};

char*   scsierror(int, int);
int             scsicmd(Scsi*, uchar*, int, void*, int, int);
int             scsi(Scsi*, uchar*, 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;

        vlong secs;
        vlong secsize;
        vlong size;
        vlong offset;   /* within larger disk, perhaps */
        int width;      /* of disk size in bytes as decimal string */
        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*);