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/**
* @file
*
* @brief Common IO Control Primitive
* @ingroup rtems_blkdev
*/
/*
* Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
* Author: Victor V. Vengerov <vvv@oktet.ru>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <rtems/blkdev.h>
#include <rtems/bdbuf.h>
int
rtems_blkdev_ioctl(rtems_disk_device *dd, uint32_t req, void *argp)
{
rtems_status_code sc;
int rc = 0;
switch (req)
{
case RTEMS_BLKIO_GETMEDIABLKSIZE:
*(uint32_t *) argp = dd->media_block_size;
break;
case RTEMS_BLKIO_GETBLKSIZE:
*(uint32_t *) argp = dd->block_size;
break;
case RTEMS_BLKIO_SETBLKSIZE:
sc = rtems_bdbuf_set_block_size(dd, *(uint32_t *) argp, true);
if (sc != RTEMS_SUCCESSFUL) {
errno = EIO;
rc = -1;
}
break;
case RTEMS_BLKIO_GETSIZE:
*(rtems_blkdev_bnum *) argp = dd->size;
break;
case RTEMS_BLKIO_SYNCDEV:
sc = rtems_bdbuf_syncdev(dd);
if (sc != RTEMS_SUCCESSFUL) {
errno = EIO;
rc = -1;
}
break;
case RTEMS_BLKIO_GETDISKDEV:
*(rtems_disk_device **) argp = dd;
break;
case RTEMS_BLKIO_PURGEDEV:
rtems_bdbuf_purge_dev(dd);
break;
case RTEMS_BLKIO_GETDEVSTATS:
rtems_bdbuf_get_device_stats(dd, (rtems_blkdev_stats *) argp);
break;
case RTEMS_BLKIO_RESETDEVSTATS:
rtems_bdbuf_reset_device_stats(dd);
break;
default:
errno = EINVAL;
rc = -1;
break;
}
return rc;
}
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