linux/drivers/ide/ide-disk_ioctl.c
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   1#include <linux/kernel.h>
   2#include <linux/ide.h>
   3#include <linux/hdreg.h>
   4#include <linux/mutex.h>
   5
   6#include "ide-disk.h"
   7
   8static DEFINE_MUTEX(ide_disk_ioctl_mutex);
   9static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
  10{ HDIO_GET_ADDRESS,     HDIO_SET_ADDRESS,   &ide_devset_address   },
  11{ HDIO_GET_MULTCOUNT,   HDIO_SET_MULTCOUNT, &ide_devset_multcount },
  12{ HDIO_GET_NOWERR,      HDIO_SET_NOWERR,    &ide_devset_nowerr    },
  13{ HDIO_GET_WCACHE,      HDIO_SET_WCACHE,    &ide_devset_wcache    },
  14{ HDIO_GET_ACOUSTIC,    HDIO_SET_ACOUSTIC,  &ide_devset_acoustic  },
  15{ 0 }
  16};
  17
  18int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
  19                   unsigned int cmd, unsigned long arg)
  20{
  21        int err;
  22
  23        mutex_lock(&ide_disk_ioctl_mutex);
  24        err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
  25        if (err != -EOPNOTSUPP)
  26                goto out;
  27
  28        err = generic_ide_ioctl(drive, bdev, cmd, arg);
  29out:
  30        mutex_unlock(&ide_disk_ioctl_mutex);
  31        return err;
  32}
  33
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