int
ramdisk_ioctl(rtems_disk_device *dd, uint32_t req, void *argp)
{
struct ramdisk *rd = rtems_disk_get_driver_data(dd);
switch (req)
{
case RTEMS_BLKIO_REQUEST:
{
rtems_blkdev_request *r = argp;
switch (r->req)
{
case RTEMS_BLKDEV_REQ_READ:
return ramdisk_read(rd, r);
case RTEMS_BLKDEV_REQ_WRITE:
return ramdisk_write(rd, r);
default:
errno = EINVAL;
return -1;
}
break;
}
case RTEMS_BLKIO_DELETED:
if (rd->free_at_delete_request) {
ramdisk_free(rd);
}
break;
default:
return rtems_blkdev_ioctl (dd, req, argp);
break;
}
errno = EINVAL;
return -1;
}
static void test_diskdevs(void)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_device_major_number major = 0;
rtems_device_minor_number minor = 0;
rtems_disk_device *physical_dd = NULL;
rtems_disk_device *logical_dd = NULL;
rtems_disk_device *dd = NULL;
dev_t physical_dev = 0;
dev_t logical_dev = 0;
dev_t logical_2_dev = 0;
dev_t const big_major_dev = rtems_filesystem_make_dev_t((rtems_device_major_number) -2, 0);
dev_t const big_minor_dev = rtems_filesystem_make_dev_t(0, (rtems_device_minor_number) -2);
ramdisk *const rd = ramdisk_allocate(NULL, BLOCK_SIZE, BLOCK_COUNT, false);
rtems_test_assert(rd != NULL);
sc = rtems_disk_io_initialize();
ASSERT_SC(sc);
sc = rtems_io_register_driver(0, &ramdisk_ops, &major);
ASSERT_SC(sc);
physical_dev = rtems_filesystem_make_dev_t(major, minor);
logical_dev = rtems_filesystem_make_dev_t(major, minor + 1);
logical_2_dev = rtems_filesystem_make_dev_t(major, minor + 2);
/* Consistency checks for physical disks creation */
sc = rtems_disk_create_phys(physical_dev, BLOCK_SIZE, BLOCK_COUNT, NULL, rd, "/dev/rda");
ASSERT_SC_EQ(sc, RTEMS_INVALID_ADDRESS);
sc = rtems_disk_create_phys(physical_dev, 0, BLOCK_COUNT, ramdisk_ioctl, rd, "/dev/rda");
ASSERT_SC_EQ(sc, RTEMS_INVALID_NUMBER);
sc = rtems_disk_create_phys(big_major_dev, BLOCK_SIZE, BLOCK_COUNT, ramdisk_ioctl, rd, "/dev/rda");
ASSERT_SC_EQ(sc, RTEMS_NO_MEMORY);
sc = rtems_disk_create_phys(big_minor_dev, BLOCK_SIZE, BLOCK_COUNT, ramdisk_ioctl, rd, "/dev/rda");
ASSERT_SC_EQ(sc, RTEMS_NO_MEMORY);
sc = rtems_disk_create_phys(physical_dev, BLOCK_SIZE, BLOCK_COUNT, ramdisk_ioctl, rd, NULL);
ASSERT_SC(sc);
sc = rtems_disk_create_phys(physical_dev, BLOCK_SIZE, BLOCK_COUNT, ramdisk_ioctl, rd, NULL);
ASSERT_SC_EQ(sc, RTEMS_RESOURCE_IN_USE);
sc = rtems_disk_delete(physical_dev);
ASSERT_SC(sc);
/* Consistency checks for logical disks creation */
sc = rtems_disk_create_log(logical_dev, physical_dev, 0, 1, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_INVALID_ID);
sc = rtems_disk_create_phys(physical_dev, BLOCK_SIZE, BLOCK_COUNT, ramdisk_ioctl, rd, "/dev/rda");
ASSERT_SC(sc);
sc = rtems_disk_create_log(big_major_dev, physical_dev, 0, 1, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_NO_MEMORY);
sc = rtems_disk_create_log(big_minor_dev, physical_dev, 0, 1, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_NO_MEMORY);
sc = rtems_disk_create_log(logical_dev, physical_dev, BLOCK_COUNT, 0, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_INVALID_NUMBER);
sc = rtems_disk_create_log(logical_dev, physical_dev, 0, BLOCK_COUNT + 1, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_INVALID_NUMBER);
sc = rtems_disk_create_log(logical_dev, physical_dev, 1, BLOCK_COUNT, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_INVALID_NUMBER);
sc = rtems_disk_create_log(logical_dev, physical_dev, 0, 1, "/dev/rda1");
ASSERT_SC(sc);
sc = rtems_disk_create_log(logical_dev, physical_dev, 0, 1, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_RESOURCE_IN_USE);
sc = rtems_disk_create_log(logical_2_dev, logical_dev, 0, 1, "/dev/rda1");
ASSERT_SC_EQ(sc, RTEMS_INVALID_ID);
sc = rtems_disk_delete(logical_dev);
ASSERT_SC(sc);
/* Consistency checks delete */
sc = rtems_disk_create_log(logical_dev, physical_dev, 0, 1, "/dev/rda1");
ASSERT_SC(sc);
physical_dd = rtems_disk_obtain(physical_dev);
rtems_test_assert(physical_dd != NULL && physical_dd->uses == 2);
sc = rtems_disk_release(physical_dd);
ASSERT_SC(sc);
logical_dd = rtems_disk_obtain(logical_dev);
rtems_test_assert(logical_dd != NULL && logical_dd->uses == 1);
sc = rtems_disk_delete(physical_dev);
ASSERT_SC(sc);
sc = rtems_disk_create_phys(physical_dev, BLOCK_SIZE, BLOCK_COUNT, ramdisk_ioctl, rd, "/dev/rda");
ASSERT_SC_EQ(sc, RTEMS_RESOURCE_IN_USE);
dd = rtems_disk_obtain(physical_dev);
rtems_test_assert(dd == NULL);
dd = rtems_disk_obtain(logical_dev);
rtems_test_assert(dd == NULL);
sc = rtems_disk_release(logical_dd);
ASSERT_SC(sc);
/* Cleanup */
sc = rtems_io_unregister_driver(major);
ASSERT_SC(sc);
ramdisk_free(rd);
sc = rtems_disk_io_done();
ASSERT_SC(sc);
}