perry@sbcs.UUCP (Perry Kivolowitz) (09/21/83)
the driver should have been on net.sources previously
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/* rlreg.h 4.1 83/02/08 */
struct rldevice {
short rlcs; /* control status */
u_short rlba; /* bus address */
union { /* disk address */
u_short seek; /* disk seek address */
u_short rw; /* disk read/write address */
u_short getstat; /* get disk status command */
} rlda;
union { /* multi-purpose register */
u_short getstat; /* get status */
u_short readhdr; /* read header */
u_short rw; /* read/write word count */
} rlmp;
};
#define NRLCYLN 512 /* number of cylinders per disk */
#define NRLTRKS 2 /* number of tracks per cylinder */
#define NRLSECT 40 /* number of sectors per track */
#define NRLBPSC 256 /* bytes per sector */
/* rlcs */
/* commands */
#define RL_NOOP 0000000 /* no-operation */
#define RL_WCHECK 0000002 /* write check */
#define RL_GETSTAT 0000004 /* get status */
#define RL_SEEK 0000006 /* seek */
#define RL_RHDR 0000010 /* read header */
#define RL_WRITE 0000012 /* write data */
#define RL_READ 0000014 /* read data */
#define RL_RDNCK 0000016 /* read data without hdr check */
#define RL_DRDY 0000001 /* When set indicates drive ready */
#define RL_BAE 0000060 /* UNIBUS address bits 16 & 17 */
#define RL_IE 0000100 /* interrupt enable */
#define RL_CRDY 0000200 /* controller ready */
#define RL_DS0 0000400 /* drive select 0 */
#define RL_DS1 0001000 /* drive select 1 */
#define RL_OPI 0002000 /* operation incomplete */
#define RL_DCRC 0004000 /* CRC error occurred */
#define RL_DLT 0010000 /* data late or header not found */
#define RL_NXM 0020000 /* non-existant memory */
#define RL_DE 0040000 /* selected drive flagged an error */
#define RL_ERR 0100000 /* composite error */
#define RL_DCRDY (RL_DRDY | RL_CRDY)
#define RLCS_BITS \
"\10\20ERR\17DE\16NXM\15DLT\14DCRC\13OPI\1DRDY"
/* da_seek */
#define RLDA_LOW 0000001 /* lower cylinder seek */
#define RLDA_HGH 0000005 /* higher cylinder seek */
#define RLDA_HSU 0000000 /* upper head select */
#define RLDA_HSL 0000020 /* lower head select */
#define RLDA_CA 0177600 /* cylinder address */
/* da_rw */
#define RLDA_SA 0000077 /* sector address */
#define RLDA_HST 0000000 /* upper head select */
#define RLDA_HSB 0000100 /* lower head select */
/* da_getstat */
#define RL_GSTAT 0000003 /* Get status */
#define RL_RESET 0000013 /* get status with reset */
/* mp_getstat */
#define RLMP_STA 0000001 /* drive state: load cartridge */
#define RLMP_STB 0000002 /* drive state: brush cycle */
#define RLMP_STC 0000004 /* drive state: seek */
#define RLMP_BH 0000010 /* set when brushes are home */
#define RLMP_HO 0000020 /* set when brushes over the disk */
#define RLMP_CO 0000040 /* set when cover open */
#define RLMP_HS 0000100 /* indicates selected head:
0 upper head
1 lower head */
#define RLMP_DT 0000200 /* indicates drive type:
0 RL01
1 RL02 */
#define RLMP_DSE 0000400 /* set on multiple drive selection */
#define RLMP_VC 0001000 /* set on pack mounted and spining */
#define RLMP_WGE 0002000 /* write gate error */
#define RLMP_SPE 0004000 /* spin speed error */
#define RLMP_SKTO 0010000 /*\* seek time out error */
#define RLMP_WL 0020000 /* set on protected drive */
#define RLMP_CHE 0040000 /* current head error */
#define RLMP_WDE 0100000 /* write data error */
/* mp_rhc */
#define RLMP_SA 0000077 /* sector address */
#define RLMP_HS 0000100 /* head select
0 upper head
1 lower head */
#define RLMP_CA 0177600 /* cylinder address */
/* check these bits after a get status and reset */
#define RLMP_STATUS (RLMP_WDE|RLMP_CHE|RLMP_SKTO|RLMP_SPE|RLMP_WGE \
|RLMP_VC|RLMP_DSE|RLMP_CO|RLMP_HO|RLMP_BH|RLMP_STC|RLMP_STB|RLMP_STA)
/* these are the bits that should be on in the above check */
#define RLMP_STATOK (RLMP_HO|RLMP_BH|RLMP_STC|RLMP_STA)
/* mp_rw */
#define RLMP_WC 0017777 /* word count 2's complement */
#define RLER_BITS \
"\10\20WDE\17CHE\16WL\15SKTO\14SPE\13WGE\12VC\11DSE\
\10DT\7HS\6CO\5HO\4BH\3STC\2STB\1STA"