ide-disk_ioctl.c

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#include <linux/kernel.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
#include <linux/mutex.h>

#include "ide-disk.h"

static DEFINE_MUTEX(ide_disk_ioctl_mutex);
static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
{ HDIO_GET_ADDRESS, HDIO_SET_ADDRESS,   &ide_devset_address   },
{ HDIO_GET_MULTCOUNT,   HDIO_SET_MULTCOUNT, &ide_devset_multcount },
{ HDIO_GET_NOWERR,  HDIO_SET_NOWERR,    &ide_devset_nowerr    },
{ HDIO_GET_WCACHE,  HDIO_SET_WCACHE,    &ide_devset_wcache    },
{ HDIO_GET_ACOUSTIC,    HDIO_SET_ACOUSTIC,  &ide_devset_acoustic  },
{ 0 }
};

int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
           unsigned int cmd, unsigned long arg)
{
    int err;

    mutex_lock(&ide_disk_ioctl_mutex);
    err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
    if (err != -EOPNOTSUPP)
        goto out;

    err = generic_ide_ioctl(drive, bdev, cmd, arg);
out:
    mutex_unlock(&ide_disk_ioctl_mutex);
    return err;
}