1 /* flp.h 3.2 06/07/80 */ 2 3 /* 4 * Console floppy command/status and sectoring information. 5 */ 6 #define FL_FFC 0x200 /* floppy function complete */ 7 #define FL_ERR 0x80 /* error bit in floppy status byte */ 8 #define FL_PERR 0x905 /* floppy protocol error */ 9 #define FL_DATA 0x100 /* floppy data select code */ 10 #define FL_RS 0x900 /* floppy read sector command */ 11 #define FL_WS 0x901 /* floppy write sector command*/ 12 #define FL_STAT 0x902 /* floppy get status command*/ 13 #define FL_CANCEL 0x904 /* cancel floppy function */ 14 15 #define RXFTRK 77 /* tracks/floppy */ 16 #define RXSTRK 26 /* sectors/track */ 17 #define RXBYSEC 128 /* bytes/sector */ 18 #define MAXSEC (RXFTRK*RXSTRK) /* sectors/floppy */ 19 20 /* 21 * In the floppy driver routines, the device active byte is used 22 * not as a boolean, but as an indicator of the state we are in. 23 * That is, it contains what to do on the next interrupt. 24 */ 25 26 #define FL_IDLE 0 /* floppy idle */ 27 #define FL_MAND 1 /* about to send read/write command */ 28 #define FL_SEC 2 /* about to send sector # to LSI */ 29 #define FL_TRACK 3 /* about to send track # to LSI */ 30 #define FL_DAX 4 /* transmitting data */ 31 #define FL_DAR 5 /* receiving data */ 32 #define FL_COM 6 /* completing transmission */ 33 #define FL_CAN 7 /* give cancel order - we had an error, 34 and are to restart */ 35 36 #define FLERRS 5 /* number of retries before quitting */ 37 38 /* 39 * The state byte is used to retain exclusivity, 40 * and contains the busy flag. 41 */ 42 #define FL_OPEN 1 43 #define FL_BUSY 2 44