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);
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;
}
static IMFS_jnode_t *rtems_blkdev_imfs_destroy(IMFS_jnode_t *node)
{
rtems_blkdev_imfs_context *ctx = IMFS_generic_get_context_by_node(node);
rtems_disk_device *dd = &ctx->dd;
rtems_bdbuf_syncdev(dd);
rtems_bdbuf_purge_dev(dd);
if (ctx->fd >= 0) {
close(ctx->fd);
} else {
(*dd->ioctl)(dd, RTEMS_BLKIO_DELETED, NULL);
}
free(ctx);
return node;
}
static void test_read_ahead(rtems_disk_device *dd)
{
int i;
for (i = 0; i < READ_COUNT; ++i) {
int action = action_sequence [i];
if (action != RESET_CACHE) {
rtems_blkdev_bnum block = (rtems_blkdev_bnum) action;
rtems_status_code sc;
rtems_bdbuf_buffer *bd;
printf("%i ", action);
sc = rtems_bdbuf_read(dd, block, &bd);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
sc = rtems_bdbuf_release(bd);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
rtems_test_assert(
memcmp(
block_access_counts,
expected_block_access_counts [i],
sizeof(block_access_counts)
) == 0
);
} else {
printf("\nreset\n");
rtems_bdbuf_purge_dev(dd);
memset(&block_access_counts, 0, sizeof(block_access_counts));
}
rtems_test_assert(trigger [i] == dd->read_ahead.trigger);
rtems_test_assert(next [i] == dd->read_ahead.next);
}
printf("\n");
}
static void purge(char task)
{
printk("%c: purge\n", task);
rtems_bdbuf_purge_dev(dev);
}
