diff options
Diffstat (limited to 'sys/scsi/scsi_disk.h')
| -rw-r--r-- | sys/scsi/scsi_disk.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/sys/scsi/scsi_disk.h b/sys/scsi/scsi_disk.h new file mode 100644 index 0000000..35a3b78 --- /dev/null +++ b/sys/scsi/scsi_disk.h @@ -0,0 +1,249 @@ +/* + * HISTORY + * $Log: scsi_disk.h,v $ + * Revision 1.2 1992/10/13 03:14:21 julian + * added the load-eject field in 'start/stop' for removable devices. + * + * Revision 1.1 1992/09/26 22:11:29 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 interface description + */ + +/* + * Some lines of this file comes from a file of the name "scsi.h" + * distributed by OSF as part of mach2.5, + * so the following disclaimer has been kept. + * + * Copyright 1990 by Open Software Foundation, + * Grenoble, FRANCE + * + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and + * its documentation for any purpose and without fee is hereby granted, + * provided that the above copyright notice appears in all copies and + * that both the copyright notice and this permission notice appear in + * supporting documentation, and that the name of OSF or Open Software + * Foundation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. + * + * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, + * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, + * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Largely 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_reassign_blocks +{ + 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; +}; + +struct scsi_rw +{ + u_char op_code; + u_char addr_2:5; /* Most significant */ + u_char lun:3; + u_char addr_1; + u_char addr_0; /* least significant */ + u_char length; + u_char link:1; + u_char flag:1; + u_char :6; +}; + +struct scsi_rw_big +{ + u_char op_code; + u_char rel_addr:1; + u_char :4; /* Most significant */ + u_char lun:3; + u_char addr_3; + u_char addr_2; + u_char addr_1; + u_char addr_0; /* least significant */ + u_char reserved;; + u_char length2; + u_char length1; + u_char link:1; + u_char flag:1; + u_char :4; + u_char vendor:2; +}; + +struct scsi_read_capacity +{ + u_char op_code; + u_char :5; + u_char lun:3; + u_char addr_3; /* Most Significant */ + u_char addr_2; + u_char addr_1; + u_char addr_0; /* Least Significant */ + u_char unused[3]; + u_char link:1; + u_char flag:1; + u_char :6; +}; + +struct scsi_start_stop +{ + u_char op_code; + u_char :5; + u_char lun:3; + u_char unused[2]; + u_char start:1; + u_char loej:1; + u_char :6; + u_char link:1; + u_char flag:1; + u_char :6; +}; + + + +/* + * Opcodes + */ + +#define REASSIGN_BLOCKS 0x07 +#define READ_COMMAND 0x08 +#define WRITE_COMMAND 0x0a +#define MODE_SELECT 0x15 +#define MODE_SENSE 0x1a +#define START_STOP 0x1b +#define PREVENT_ALLOW 0x1e +#define READ_CAPACITY 0x25 +#define READ_BIG 0x28 +#define WRITE_BIG 0x2a + + + +struct scsi_read_cap_data +{ + u_char addr_3; /* Most significant */ + u_char addr_2; + u_char addr_1; + u_char addr_0; /* Least significant */ + u_char length_3; /* Most significant */ + u_char length_2; + u_char length_1; + u_char length_0; /* Least significant */ +}; + +struct scsi_reassign_blocks_data +{ + u_char reserved[2]; + u_char length_msb; + u_char length_lsb; + struct + { + u_char dlbaddr_3; /* defect logical block address (MSB) */ + u_char dlbaddr_2; + u_char dlbaddr_1; + u_char dlbaddr_0; /* defect logical block address (LSB) */ + } defect_descriptor[1]; +}; + +union disk_pages /* this is the structure copied from osf */ +{ + struct page_disk_format { + u_char pg_code:6; /* page code (should be 3) */ + u_char :2; + u_char pg_length; /* page length (should be 0x16) */ + u_char trk_z_1; /* tracks per zone (MSB) */ + u_char trk_z_0; /* tracks per zone (LSB) */ + u_char alt_sec_1; /* alternate sectors per zone (MSB) */ + u_char alt_sec_0; /* alternate sectors per zone (LSB) */ + u_char alt_trk_z_1; /* alternate tracks per zone (MSB) */ + u_char alt_trk_z_0; /* alternate tracks per zone (LSB) */ + u_char alt_trk_v_1; /* alternate tracks per volume (MSB) */ + u_char alt_trk_v_0; /* alternate tracks per volume (LSB) */ + u_char ph_sec_t_1; /* physical sectors per track (MSB) */ + u_char ph_sec_t_0; /* physical sectors per track (LSB) */ + u_char bytes_s_1; /* bytes per sector (MSB) */ + u_char bytes_s_0; /* bytes per sector (LSB) */ + u_char interleave_1;/* interleave (MSB) */ + u_char interleave_0;/* interleave (LSB) */ + u_char trk_skew_1; /* track skew factor (MSB) */ + u_char trk_skew_0; /* track skew factor (LSB) */ + u_char cyl_skew_1; /* cylinder skew (MSB) */ + u_char cyl_skew_0; /* cylinder skew (LSB) */ + u_char reserved1:4; + u_char surf:1; + u_char rmb:1; + u_char hsec:1; + u_char ssec:1; + u_char reserved2; + u_char reserved3; + } disk_format; + struct page_rigid_geometry { + u_char pg_code:7; /* page code (should be 4) */ + u_char mbone:1; /* must be one */ + u_char pg_length; /* page length (should be 0x16) */ + u_char ncyl_2; /* number of cylinders (MSB) */ + u_char ncyl_1; /* number of cylinders */ + u_char ncyl_0; /* number of cylinders (LSB) */ + u_char nheads; /* number of heads */ + u_char st_cyl_wp_2; /* starting cyl., write precomp (MSB) */ + u_char st_cyl_wp_1; /* starting cyl., write precomp */ + u_char st_cyl_wp_0; /* starting cyl., write precomp (LSB) */ + u_char st_cyl_rwc_2;/* starting cyl., red. write cur (MSB)*/ + u_char st_cyl_rwc_1;/* starting cyl., red. write cur */ + u_char st_cyl_rwc_0;/* starting cyl., red. write cur (LSB)*/ + u_char driv_step_1; /* drive step rate (MSB) */ + u_char driv_step_0; /* drive step rate (LSB) */ + u_char land_zone_2; /* landing zone cylinder (MSB) */ + u_char land_zone_1; /* landing zone cylinder */ + u_char land_zone_0; /* landing zone cylinder (LSB) */ + u_char reserved1; + u_char reserved2; + u_char reserved3; + } rigid_geometry; +} ; |
