nusb: improved

1 files changed, 238 insertions, 0 deletions

diff --git a/sys/src/cmd/nusb/disk/scsireq.h b/sys/src/cmd/nusb/disk/scsireq.h
new file mode 100644
index 000000000..0fbd2b938
--- /dev/null
+++ b/sys/src/cmd/nusb/disk/scsireq.h
@@ -0,0 +1,238 @@
+/*
+ * 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,	/* 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 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);