#ifndef _LINUX_FDREG_H
#define _LINUX_FDREG_H

/*
** WD1772 stuff
 */

#define FDCSELREG_STP   (0x80)
#define FDCSELREG_TRA   (0x82)
#define FDCSELREG_SEC   (0x84)
#define FDCSELREG_DTA   (0x86)

#define FDCCMD_RESTORE  (0x00)   /*  -                   */
#define FDCCMD_SEEK     (0x10)   /*   |                  */
#define FDCCMD_STEP     (0x20)   /*   |  TYP 1 Commands  */
#define FDCCMD_STIN     (0x40)   /*   |                  */
#define FDCCMD_STOT     (0x60)   /*  -                   */
#define FDCCMD_RDSEC    (0x80)   /*  -   TYP 2 Commands  */
#define FDCCMD_WRSEC    (0xa0)   /*  -          "        */
#define FDCCMD_RDADR    (0xc0)   /*  -                   */
#define FDCCMD_RDTRA    (0xe0)   /*   |  TYP 3 Commands  */
#define FDCCMD_WRTRA    (0xf0)   /*  -                   */
#define FDCCMD_FORCI    (0xc0)   /*  -   TYP 4 Command   */

#define FDCCMDADD_SR6   (0x00)
#define FDCCMDADD_SR12  (0x01)
#define FDCCMDADD_SR2   (0x02)
#define FDCCMDADD_SR3   (0x03)

#define FDCCMDADD_V     (0x04)

#define FDCCMDADD_H     (0x08)

#define FDCCMDADD_U     (0x10)

#define FDCCMDADD_M     (0x10)

#define FDCCMDADD_E     (0x04)

#define FDCCMDADD_P     (0x02)

#define FDCCMDADD_A0    (0x01)


/* PSG Port A Bit Nr 0 .. Side Sel .. 0 -> Side 1  1 -> Side 2 */
#define DSKSIDE     (0x01)
        
#define DSKDRVNONE  (0x06)
#define DSKDRV0     (0x02)
#define DSKDRV1     (0x02)
 

/*
** Misc
*/
 
#define MFM_SYNC    0x4489          /* standard MFM sync value */

/* Values for FD_COMMAND */
#define FD_RECALIBRATE		0x07	/* move to track 0 */
#define FD_SEEK			0x0F	/* seek track */
#define FD_READ			0xE6	/* read with MT, MFM, SKip deleted */
#define FD_WRITE		0xC5	/* write with MT, MFM */
#define FD_SENSEI		0x08	/* Sense Interrupt Status */
#define FD_SPECIFY		0x03	/* specify HUT etc */
#define FD_FORMAT		0x4D	/* format one track */
#define FD_VERSION		0x10	/* get version code */
#define FD_CONFIGURE		0x13	/* configure FIFO operation */
#define FD_PERPENDICULAR	0x12	/* perpendicular r/w mode */

#endif