/* rkreg.h 4.2 81/05/09 */
short rkcs1
; /* control status reg 1 */
short rkwc
; /* word count */
u_short rkba
; /* bus address */ short rkda
; /* disk address */
short rkcs2
; /* control status reg 2 */
short rkds
; /* drive status */
short rker
; /* driver error register */
short rkatt
; /* attention status/offset register */
short rkcyl
; /* current cylinder register */
short rkdb
; /* data buffer register */
short rkmr1
; /* maint reg 1 */
short rkec1
; /* burst error bit position */
short rkec2
; /* burst error bit pattern */
short rkmr2
; /* maint reg 2 */
short rkmr3
; /* maint reg 3 */
#define RK_CCLR 0100000 /* controller clear (also error) */
#define RK_DI 0040000 /* drive interrupt */
#define RK_DTCPAR 0020000 /* drive to controller parity */
#define RK_CFMT 0010000 /* 18 bit word format */
#define RK_CTO 0004000 /* controller timeout */
#define RK_CDT 0002000 /* drive type (rk07/rk06) */
/* bits 8 and 9 are the extended bus address */
#define RK_CRDY 0000200 /* controller ready */
#define RK_IE 0000100 /* interrupt enable */
/* bits 1 to 4 are the function code */
#define RK_SELECT 000 /* select drive */
#define RK_PACK 002 /* pack acknowledge */
#define RK_DCLR 004 /* drive clear */
#define RK_UNLOAD 006 /* unload */
#define RK_START 010 /* start spindle */
#define RK_RECAL 012 /* recalibrate */
#define RK_OFFSET 014 /* offset */
#define RK_SEEK 016 /* seek */
#define RK_READ 020 /* read data */
#define RK_WRITE 022 /* write data */
#define RK_RHDR 026 /* read header */
#define RK_WHDR 030 /* write header */
#define RKCS2_DLT 0100000 /* data late */
#define RKCS2_WCE 0040000 /* write check */
#define RKCS2_UPE 0020000 /* unibus parity */
#define RKCS2_NED 0010000 /* non-existant drive */
#define RKCS2_NEM 0004000 /* non-existant memory */
#define RKCS2_PGE 0002000 /* programming error */
#define RKCS2_MDS 0001000 /* multiple drive select */
#define RKCS2_UFE 0000400 /* unit field error */
#define RKCS2_OR 0000200 /* output ready */
#define RKCS2_IR 0000100 /* input ready */
#define RKCS2_SCLR 0000040 /* subsystem clear */
#define RKCS2_BAI 0000020 /* bus address increment inhibit */
#define RKCS2_RLS 0000010 /* release */
/* bits 0-2 are drive select */
"\10\20DLT\17WCE\16UPE\15NED\14NEM\13PGE\12MDS\11UFE\
\10OR\7IR\6SCLR\5BAI\4RLS"
#define RKCS2_HARD (RKCS2_NED|RKCS2_PGE)
#define RKDS_SVAL 0100000 /* status valid */
#define RKDS_CDA 0040000 /* current drive attention */
#define RKDS_PIP 0020000 /* positioning in progress */
#define RKDS_WRL 0004000 /* write lock */
/* bits 9 and 10 are spare */
#define RKDS_DDT 0000400 /* disk drive type */
#define RKDS_DRDY 0000200 /* drive ready */
#define RKDS_VV 0000100 /* volume valid */
#define RKDS_DROT 0000040 /* drive off track */
#define RKDS_SPLS 0000020 /* speed loss */
#define RKDS_ACLO 0000010 /* ac low */
#define RKDS_OFF 0000004 /* offset mode */
#define RKDS_DRA 0000001 /* drive available */
#define RKDS_DREADY (RKDS_DRA|RKDS_VV|RKDS_DRDY)
"\10\20SVAL\17CDA\16PIP\14WRL\11DDT\
\10DRDY\7VV\6DROT\5SPLS\4ACLO\3OFF\1DRA"
#define RKDS_HARD (RKDS_ACLO|RKDS_SPLS)
#define RKER_DCK 0100000 /* data check */
#define RKER_UNS 0040000 /* drive unsafe */
#define RKER_OPI 0020000 /* operation incomplete */
#define RKER_DTE 0010000 /* drive timing error */
#define RKER_WLE 0004000 /* write lock error */
#define RKER_IDAE 0002000 /* invalid disk address error */
#define RKER_COE 0001000 /* cylinder overflow error */
#define RKER_HRVC 0000400 /* header vertical redundancy check */
#define RKER_BSE 0000200 /* bad sector error */
#define RKER_ECH 0000100 /* hard ecc error */
#define RKER_DTYE 0000040 /* drive type error */
#define RKER_FMTE 0000020 /* format error */
#define RKER_DRPAR 0000010 /* control-to-drive parity error */
#define RKER_NXF 0000004 /* non-executable function */
#define RKER_SKI 0000002 /* seek incomplete */
#define RKER_ILF 0000001 /* illegal function */
"\10\20DCK\17UNS\16OPI\15DTE\14WLE\13IDAE\12COE\11HRVC\
\10BSE\7ECH\6DTYE\5FMTE\4DRPAR\3NXF\2SKI\1ILF"
(RKER_WLE|RKER_IDAE|RKER_COE|RKER_DTYE|RKER_FMTE|RKER_ILF)
/* offset bits in rkas */
#define RKAS_P400 0020 /* +400 RK06, +200 RK07 */
#define RKAS_M400 0220 /* -400 RK06, -200 RK07 */
#define RKAS_P800 0040 /* +800 RK06, +400 RK07 */
#define RKAS_M800 0240 /* -800 RK06, -400 RK07 */
#define RKAS_P1200 0060 /* +800 RK06, +400 RK07 */
#define RKAS_M1200 0260 /* -1200 RK06, -1200 RK07 */
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