57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* $Id: stdefs.h,v 1.4 1994/01/11 17:22:08 mycroft Exp $
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*/
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#define STQSIZE 4
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struct st_data {
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struct scsi_switch *sc_sw; /* address of scsi low level switch */
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int flags;
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int ctlr; /* so they know which one we want */
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int targ; /* our scsi target ID */
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int lu; /* our scsi lu */
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int blkmin; /* min blk size */
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int blkmax; /* max blk size */
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int numblks; /* nominal blocks capacity */
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int blksiz; /* nominal block size */
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int info_valid; /* the info about the device is valid */
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int initialized;
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struct buf buf[STQSIZE]; /* buffer for raw io (one per device) */
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struct buf buf_queue;
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struct scsi_xfer scsi_xfer;
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int blockwait;
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};
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#define ST_OPEN 0x01
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#define ST_NOREWIND 0x02
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#define ST_WRITTEN 0x04
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#define ST_FIXEDBLOCKS 0x10
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#define ST_AT_FILEMARK 0x20
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#define ST_AT_EOM 0x40
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#define ST_PER_ACTION (ST_AT_FILEMARK | ST_AT_EOM)
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#define ST_PER_OPEN (ST_OPEN | ST_NOREWIND | ST_WRITTEN | ST_PER_ACTION)
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#define ST_PER_MEDIA ST_FIXEDBLOCKS
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int stattach(int, struct scsi_switch *, int, int *);
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int stopen(dev_t);
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int stclose(dev_t);
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void stminphys(struct buf *);
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void ststrategy(struct buf *);
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int ststart(int);
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int st_done(int, struct scsi_xfer *);
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int stioctl(dev_t, int, caddr_t, int);
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int st_req_sense(int, int);
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int st_test_ready(int, int);
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int st_rd_blk_lim(int, int);
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int st_mode_sense(int, int);
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int st_mode_select(int, int, int);
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int st_space(int, int, int, int);
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int st_write_filemarks(int, int, int);
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int st_load(int, int, int);
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int st_prevent(int, int, int);
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int st_rewind(int, int, int);
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int st_scsi_cmd(int, struct scsi_generic *, int, u_char *, int, int, int);
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int st_interpret_sense(int, struct scsi_xfer *);
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int stsize(dev_t);
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int stdump(void);
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