1 #ifndef _LINUX_FDREG_H 2 #define _LINUX_FDREG_H 3 4 /* 5 ** WD1772 stuff 6 */ 7 8 /* register codes */ 9 10 #define FDCSELREG_STP (0x80) /* command/status register */ 11 #define FDCSELREG_TRA (0x82) /* track register */ 12 #define FDCSELREG_SEC (0x84) /* sector register */ 13 #define FDCSELREG_DTA (0x86) /* data register */ 14 15 /* register names for FDC_READ/WRITE macros */ 16 17 #define FDCREG_CMD 0 18 #define FDCREG_STATUS 0 19 #define FDCREG_TRACK 2 20 #define FDCREG_SECTOR 4 21 #define FDCREG_DATA 6 22 23 /* command opcodes */ 24 25 #define FDCCMD_RESTORE (0x00) /* - */ 26 #define FDCCMD_SEEK (0x10) /* | */ 27 #define FDCCMD_STEP (0x20) /* | TYP 1 Commands */ 28 #define FDCCMD_STIN (0x40) /* | */ 29 #define FDCCMD_STOT (0x60) /* - */ 30 #define FDCCMD_RDSEC (0x80) /* - TYP 2 Commands */ 31 #define FDCCMD_WRSEC (0xa0) /* - " */ 32 #define FDCCMD_RDADR (0xc0) /* - */ 33 #define FDCCMD_RDTRA (0xe0) /* | TYP 3 Commands */ 34 #define FDCCMD_WRTRA (0xf0) /* - */ 35 #define FDCCMD_FORCI (0xd0) /* - TYP 4 Command */ 36 37 /* command modifier bits */ 38 39 #define FDCCMDADD_SR6 (0x00) /* step rate settings */ 40 #define FDCCMDADD_SR12 (0x01) 41 #define FDCCMDADD_SR2 (0x02) 42 #define FDCCMDADD_SR3 (0x03) 43 #define FDCCMDADD_V (0x04) /* verify */ 44 #define FDCCMDADD_H (0x08) /* wait for spin-up */ 45 #define FDCCMDADD_U (0x10) /* update track register */ 46 #define FDCCMDADD_M (0x10) /* multiple sector access */ 47 #define FDCCMDADD_E (0x04) /* head settling flag */ 48 #define FDCCMDADD_P (0x02) /* precompensation off */ 49 #define FDCCMDADD_A0 (0x01) /* DAM flag */ 50 51 /* status register bits */ 52 53 #define FDCSTAT_MOTORON (0x80) /* motor on */ 54 #define FDCSTAT_WPROT (0x40) /* write protected (FDCCMD_WR*) */ 55 #define FDCSTAT_SPINUP (0x20) /* motor speed stable (Type I) */ 56 #define FDCSTAT_DELDAM (0x20) /* sector has deleted DAM (Type II+III) */ 57 #define FDCSTAT_RECNF (0x10) /* record not found */ 58 #define FDCSTAT_CRC (0x08) /* CRC error */ 59 #define FDCSTAT_TR00 (0x04) /* Track 00 flag (Type I) */ 60 #define FDCSTAT_LOST (0x04) /* Lost Data (Type II+III) */ 61 #define FDCSTAT_IDX (0x02) /* Index status (Type I) */ 62 #define FDCSTAT_DRQ (0x02) /* DRQ status (Type II+III) */ 63 #define FDCSTAT_BUSY (0x01) /* FDC is busy */ 64 65 66 /* PSG Port A Bit Nr 0 .. Side Sel .. 0 -> Side 1 1 -> Side 2 */ 67 #define DSKSIDE (0x01) 68 69 #define DSKDRVNONE (0x06) 70 #define DSKDRV0 (0x02) 71 #define DSKDRV1 (0x04) 72 73 /* step rates */ 74 #define FDCSTEP_6 0x00 75 #define FDCSTEP_12 0x01 76 #define FDCSTEP_2 0x02 77 #define FDCSTEP_3 0x03 78 79 #endif 80