#include <sys/fdio.h>

The Solaris floppy driver supports a set of ioctl(2) requests for getting and setting the floppy drive characteristics. Basic to these ioctl(\|) requests are the definitions in <sys/fdio.h>.

The following ioctl(\|) requests are available on the Solaris floppy driver. FDDEFGEOCHAR

Note: For x86 based systems, use FDGC_DETECTED (which is available only on x86 based systems) instead of FDGC_HISTORY.

/*
 * Used by FDGETCHANGE, returned state of the sense disk change bit.
 */
#define FDGC_HISTORY 0x01 /* disk has changed since insertion or
 last FDGETCHANGE call */
#define FDGC_CURRENT 0x02 /* if set, indicates drive has floppy,
> otherwise, drive is empty */
#define FDGC_CURWPROT 0x10 /* current state of write protect */
#define FDGC_DETECTED 0x20 /* previous state of DISK CHANGE */

field value
fdc_medium 0
fdc_transfer_rate 500
fdc_ncyl 80
fdc_nhead 2
fdc_sec_size 512
fdc_secptrack 18
fdc_steps -1 { This field doesn't apply. }

/*
 * Floppy characteristics
 */
struct fd_char {
 uchar_t fdc_medium; /* equals 1 if floppy is medium density format */
 int fdc_transfer_rate; /* transfer rate */
 int fdc_ncyl; /* number of cylinders */
 int fdc_nhead; /* number of heads */
 int fdc_sec_size; /* sector size */
 int fdc_secptrack; /* sectors per track */
 int fdc_steps; /* no. of steps per data track */
};

/*
 * Floppy Drive characteristics
 */
struct fd_drive {
 int fdd_ejectable; /* does the drive support eject? */
 int fdd_maxsearch; /* size of per-unit search table */
 int fdd_writeprecomp; /* cyl to start write precompensation */
 int fdd_writereduce; /* cyl to start recucing write current */
 int fdd_stepwidth; /* width of step pulse in 1 us units */
 int fdd_steprate; /* step rate in 100 us units */
 int fdd_headsettle; /* delay, in 100 us units */
 int fdd_headload; /* delay, in 100 us units */
 int fdd_headunload; /* delay, in 100 us units */
 int fdd_motoron; /* delay, in 100 ms units */
 int fdd_motoroff; /* delay, in 100 ms units */
 int fdd_precomplevel; /* bit shift, in nano-secs */
 int fdd_pins; /* defines meaning of pin 1, 2, 4 and 34 */
 int fdd_flags; /* TRUE READY, Starting Sector #, & Motor On */
};

struct fd_cmd {
 ushort_t fdc_cmd; /* command to be executed */
 int fdc_flags; /* execution flags (x86 only) */
 daddr_t fdc_blkno; /* disk address for command */
 int fdc_secnt; /* sector count for command */
 caddr_t fdc_bufaddr; /* user's buffer address */
 uint_t fdc_buflen; /* size of user's buffer */
};

Please note that the fdc_buflen field is currently unused. The fdc_secnt field is used to calculate the transfer size, and the buffer is assumed to be large enough to accommodate the transfer.

{
/*
* Floppy commands
 */
#define FDCMD_WRITE 1
#define FDCMD_READ 2
#define FDCMD_SEEK 3
#define FDCMD_REZERO 4
#define FDCMD_FORMAT_UNIT 5
#define FDCMD_FORMAT_TRACK 6
};

/*
* Floppy raw commands
*/
#define FDRAW_SPECIFY 0x03
#define FDRAW_READID 0x0a (x86 only)
#define FDRAW_SENSE_DRV 0x04
#define FDRAW_REZERO 0x07
#define FDRAW_SEEK 0x0f
#define FDRAW_SENSE_INT 0x08 (x86 only)
#define FDRAW_FORMAT 0x0d
#define FDRAW_READTRACK 0x02
#define FDRAW_WRCMD 0x05
#define FDRAW_RDCMD 0x06
#define FDRAW_WRITEDEL 0x09
#define FDRAW_READDEL 0x0c

Please note that when using FDRAW_SEEK or FDRAW_REZERO, the driver automatically issues a FDRAW_SENSE_INT command to clear the interrupt from the FDRAW_SEEK or the FDRAW_REZERO. The result bytes returned by these commands are the results from the FDRAW_SENSE_INT command. Please see the floppy-controller data sheet for more details on FDRAW_SENSE_INT.

/*
 * Used by FDRAW
 */
struct fd_raw {
 char fdr_cmd[10]; /* user-supplied command bytes */
 short fdr_cnum; /* number of command bytes */
 char fdr_result[10]; /* controller-supplied result bytes */
 ushort_t fdr_nbytes; /* number to transfer if read/write command */
 char *fdr_addr; /* where to transfer if read/write command */
};

ioctl(2), dkio(7I), fd(7D), hdio(7I)