Initial import, 0.1 + pk 0.2.4-B1

1 files changed, 169 insertions, 0 deletions

diff --git a/sys/scsi/scsi_tape.h b/sys/scsi/scsi_tape.h
new file mode 100644
index 0000000..2b8a82f
--- /dev/null
+++ b/sys/scsi/scsi_tape.h
@@ -0,0 +1,169 @@
+/*
+ * HISTORY
+ * $Log: scsi_tape.h,v $
+ * Revision 1.2  1993/01/26  18:39:08  julian
+ * add the 'write protected' bit in the device status struct.
+ *
+ * Revision 1.1  1992/09/26  22:10:21  julian
+ * Initial revision
+ *
+ *
+ * PATCHES MAGIC                LEVEL   PATCH THAT GOT US HERE
+ * --------------------         -----   ----------------------
+ * CURRENT PATCH LEVEL:         1       00098
+ * --------------------         -----   ----------------------
+ *
+ * 16 Feb 93	Julian Elischer		ADDED for SCSI system
+ * 
+ */
+
+/*
+ * SCSI tape interface description
+ */
+
+/*
+ * Written by Julian Elischer (julian@tfs.com)
+ * for TRW Financial Systems.
+ *
+ * TRW Financial Systems, in accordance with their agreement with Carnegie
+ * Mellon University, makes this software available to CMU to distribute
+ * or use in any manner that they see fit as long as this message is kept with 
+ * the software. For this reason TFS also grants any other persons or
+ * organisations permission to use or modify this software.
+ *
+ * TFS supplies this software to be publicly redistributed
+ * on the understanding that TFS is not responsible for the correct
+ * functioning of this software in any circumstances.
+ *
+ */
+
+/*
+ * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
+ */
+
+/*
+ * SCSI command format
+ */
+
+
+struct scsi_rw_tape
+{
+	u_char	op_code;
+	u_char	fixed:1;
+	u_char	:4;	
+	u_char	lun:3;
+	u_char	len[3];
+	u_char	link:1;
+	u_char	flag:1;
+	u_char	:6;
+} rw_tape;
+
+struct scsi_space
+{
+	u_char	op_code;
+	u_char	code:2;
+	u_char	:3;
+	u_char	lun:3;
+	u_char	number[3];
+	u_char	link:1;
+	u_char	flag:1;
+	u_char	:6;
+} space;
+#define SP_BLKS	0
+#define SP_FILEMARKS 1
+#define SP_SEQ_FILEMARKS 2
+#define	SP_EOM	3
+
+struct scsi_write_filemarks
+{
+	u_char	op_code;
+	u_char	:5;
+	u_char	lun:3;
+	u_char	number[3];
+	u_char	link:1;
+	u_char	flag:1;
+	u_char	:6;
+} write_filemarks;
+
+struct scsi_rewind
+{
+	u_char	op_code;
+	u_char	immed:1;
+	u_char	:4;
+	u_char	lun:3;
+	u_char	unused[3];
+	u_char	link:1;
+	u_char	flag:1;
+	u_char	:6;
+} rewind;
+
+struct scsi_load
+{
+	u_char	op_code;
+	u_char	immed:1;
+	u_char	:4;
+	u_char	lun:3;
+	u_char	unused[2];
+	u_char	load:1;
+	u_char	reten:1;
+	u_char	:6;
+	u_char	link:1;
+	u_char	flag:1;
+	u_char	:6;
+} load;
+#define LD_UNLOAD 0
+#define LD_LOAD 1
+
+struct scsi_blk_limits
+{
+	u_char	op_code;
+	u_char	:5;
+	u_char	lun:3;
+	u_char	unused[3];
+	u_char	link:1;
+	u_char	flag:1;
+	u_char	:6;
+} blk_limits;
+
+/*
+ * Opcodes
+ */
+
+#define REWIND			0x01
+#define	READ_BLK_LIMITS		0x05
+#define	READ_COMMAND_TAPE	0x08
+#define WRITE_COMMAND_TAPE	0x0a
+#define	WRITE_FILEMARKS		0x10
+#define	SPACE			0x11
+#define LOAD_UNLOAD		0x1b /* same as above */
+
+
+
+struct scsi_blk_limits_data
+{
+	u_char	reserved;
+	u_char	max_length_2;	/* Most significant */
+	u_char	max_length_1;
+	u_char	max_length_0;	/* Least significant */
+	u_char	min_length_1;	/* Most significant */
+	u_char	min_length_0;	/* Least significant */
+};
+
+struct	scsi_mode_header_tape
+{
+	u_char  data_length;    /* Sense data length */
+	u_char  medium_type;
+	u_char	speed:4;
+	u_char	buf_mode:3;
+	u_char	write_protected:1;
+	u_char  blk_desc_len;
+};
+
+
+#define QIC_120     0x0f
+#define QIC_150     0x10
+#define QIC_320     0x11
+#define QIC_525     0x11
+#define QIC_1320     0x12
+
+