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#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.
Note that for x86 and PowerPC systems,
use FDGC_DETECTED
(which is available only on x86 and PowerPC systems)
instead of FDGC_HISTORY
.
/* * Used by FDGETCHANGE, returned state of the sense disk change bit. */ #define FDGC_HISTORY 0x01 /* disk has changed since last call */ #define FDGC_CURRENT 0x02 /* current state of disk change */ #define FDGC_CURWPROT 0x10 /* current state of write protect */ ." start x86 ppc #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 {
u_char fdc_medium; /* equals 1 if medium type */
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 {
u_short fdc_cmd; /* command to be executed */
int fdc_flags; /* execution flags (x86 and PowerPC only) */
daddr_t fdc_blkno; /* disk address for command */
int fdc_secnt; /* sector count for command */
caddr_t fdc_bufaddr; /* user’s buffer address */
u_int 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.
struct fd_cmd {
/*
* 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 and PowerPC only) #define FDRAW_SENSE_DRV 0x04 #define FDRAW_REZERO 0x07 #define FDRAW_SEEK 0x0f #define FDRAW_SENSE_INT 0x08 (x86 and PowerPC 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 */
short fdr_nbytes; /* number to transfer if read/write command */
char *fdr_addr; /* where to transfer if read/write command */
};