/* msdos_file_stat --
*
* PARAMETERS:
* loc - node description
* buf - stat buffer provided by user
*
* RETURNS:
* RC_OK on success, or -1 if error occured (errno set appropriately)
*/
int
msdos_file_stat(
const rtems_filesystem_location_info_t *loc,
struct stat *buf
)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
msdos_fs_info_t *fs_info = loc->mt_entry->fs_info;
fat_file_fd_t *fat_fd = loc->node_access;
uint32_t cl_mask = fs_info->fat.vol.bpc - 1;
sc = rtems_semaphore_obtain(fs_info->vol_sema, RTEMS_WAIT,
MSDOS_VOLUME_SEMAPHORE_TIMEOUT);
if (sc != RTEMS_SUCCESSFUL)
rtems_set_errno_and_return_minus_one(EIO);
buf->st_dev = rtems_disk_get_device_identifier(fs_info->fat.vol.dd);
buf->st_ino = fat_fd->ino;
buf->st_mode = S_IFREG | S_IRWXU | S_IRWXG | S_IRWXO;
buf->st_rdev = 0ll;
buf->st_size = fat_fd->fat_file_size;
buf->st_blocks = ((fat_fd->fat_file_size + cl_mask) & ~cl_mask)
>> FAT_SECTOR512_BITS;
buf->st_blksize = fs_info->fat.vol.bpc;
buf->st_atime = fat_fd->mtime;
buf->st_ctime = fat_fd->ctime;
buf->st_mtime = fat_fd->mtime;
rtems_semaphore_release(fs_info->vol_sema);
return RC_OK;
}
static int rtems_blkdev_imfs_fstat(
const rtems_filesystem_location_info_t *loc,
struct stat *buf
)
{
rtems_blkdev_imfs_context *ctx =
IMFS_generic_get_context_by_location(loc);
rtems_disk_device *dd = &ctx->dd;
buf->st_rdev = rtems_disk_get_device_identifier(dd);
buf->st_blksize = rtems_disk_get_block_size(dd);
buf->st_blocks = rtems_disk_get_block_count(dd);
return IMFS_stat(loc, buf);
}
static void test_blkdev_imfs_parameters(void)
{
rtems_status_code sc;
int rv;
ramdisk *rd;
int fd;
rtems_disk_device *dd;
struct stat st;
rd = ramdisk_allocate(NULL, BLOCK_SIZE, BLOCK_COUNT, false);
rtems_test_assert(rd != NULL);
ramdisk_enable_free_at_delete_request(rd);
sc = rtems_blkdev_create(
rda,
BLOCK_SIZE,
BLOCK_COUNT,
ramdisk_ioctl,
rd
);
ASSERT_SC(sc);
sc = rtems_blkdev_create_partition(
rda1,
rda,
1,
BLOCK_COUNT - 1
);
ASSERT_SC(sc);
fd = open(rda, O_RDWR);
rtems_test_assert(fd >= 0);
rv = fstat(fd, &st);
rtems_test_assert(rv == 0);
rv = rtems_disk_fd_get_disk_device(fd, &dd);
rtems_test_assert(rv == 0);
rtems_test_assert(rtems_disk_get_driver_data(dd) == rd);
rtems_test_assert(rtems_disk_get_device_identifier(dd) == st.st_rdev);
rtems_test_assert(rtems_disk_get_media_block_size(dd) == BLOCK_SIZE);
rtems_test_assert(rtems_disk_get_block_size(dd) == BLOCK_SIZE);
rtems_test_assert(rtems_disk_get_block_begin(dd) == 0);
rtems_test_assert(rtems_disk_get_block_count(dd) == BLOCK_COUNT);
rv = close(fd);
rtems_test_assert(rv == 0);
fd = open(rda1, O_RDWR);
rtems_test_assert(fd >= 0);
rv = fstat(fd, &st);
rtems_test_assert(rv == 0);
rv = rtems_disk_fd_get_disk_device(fd, &dd);
rtems_test_assert(rv == 0);
rtems_test_assert(rtems_disk_get_driver_data(dd) == rd);
rtems_test_assert(rtems_disk_get_device_identifier(dd) == st.st_rdev);
rtems_test_assert(rtems_disk_get_media_block_size(dd) == BLOCK_SIZE);
rtems_test_assert(rtems_disk_get_block_size(dd) == BLOCK_SIZE);
rtems_test_assert(rtems_disk_get_block_begin(dd) == 1);
rtems_test_assert(rtems_disk_get_block_count(dd) == BLOCK_COUNT - 1);
rv = close(fd);
rtems_test_assert(rv == 0);
rv = unlink(rda1);
rtems_test_assert(rv == 0);
rv = unlink(rda);
rtems_test_assert(rv == 0);
}
rtems_status_code rtems_bdpart_register(
const char *disk_name,
const rtems_bdpart_partition *pt,
size_t count
)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_status_code esc = RTEMS_SUCCESSFUL;
rtems_device_major_number major = 0;
rtems_device_minor_number minor = 0;
rtems_blkdev_bnum disk_end = 0;
dev_t disk = 0;
dev_t logical_disk = 0;
char *logical_disk_name = NULL;
char *logical_disk_marker = NULL;
size_t disk_name_size = strlen( disk_name);
size_t i = 0;
int fd = -1;
const rtems_disk_device *dd = NULL;
/* Get disk data */
sc = rtems_bdpart_get_disk_data( disk_name, &fd, &dd, &disk_end);
if (sc != RTEMS_SUCCESSFUL) {
return sc;
}
disk = rtems_disk_get_device_identifier( dd);
close( fd);
/* Get the disk device identifier */
rtems_filesystem_split_dev_t( disk, major, minor);
/* Create logical disk name */
logical_disk_name = malloc( disk_name_size + RTEMS_BDPART_NUMBER_SIZE);
if (logical_disk_name == NULL) {
return RTEMS_NO_MEMORY;
}
strncpy( logical_disk_name, disk_name, disk_name_size);
logical_disk_marker = logical_disk_name + disk_name_size;
/* Create a logical disk for each partition */
for (i = 0; i < count; ++i) {
const rtems_bdpart_partition *p = pt + i;
int rv = 0;
/* New minor number */
++minor;
/* Create a new device identifier */
logical_disk = rtems_filesystem_make_dev_t( major, minor);
/* Set partition number for logical disk name */
rv = snprintf( logical_disk_marker, RTEMS_BDPART_NUMBER_SIZE, "%zu", i + 1);
if (rv >= RTEMS_BDPART_NUMBER_SIZE) {
esc = RTEMS_INVALID_NAME;
goto cleanup;
}
/* Create logical disk */
sc = rtems_disk_create_log(
logical_disk,
disk,
p->begin,
p->end - p->begin,
logical_disk_name
);
if (sc != RTEMS_SUCCESSFUL) {
esc = sc;
goto cleanup;
}
}
cleanup:
free( logical_disk_name);
return esc;
}
static int
test_disk_ioctl(rtems_disk_device *dd, uint32_t req, void *argp)
{
dev_t dev = rtems_disk_get_device_identifier(dd);
rtems_status_code rc;
bdbuf_test_msg msg;
size_t msg_size;
switch (req)
{
case RTEMS_BLKIO_REQUEST:
{
rtems_blkdev_request *r = argp;
rtems_blkdev_sg_buffer *sg;
unsigned int i;
printk("DISK_DRV: %s ",
r->req == RTEMS_BLKDEV_REQ_READ ? "R" :
r->req == RTEMS_BLKDEV_REQ_WRITE ? "W" : "?");
for (i = 0, sg = r->bufs; i < r->bufnum; i++, sg++)
{
printk("[%d] ", sg->block);
}
printk("\n");
break;
}
default:
printk("%s() Unexpected request comes %u\n",
__FUNCTION__, req);
return -1;
}
memset(&msg, 0, sizeof(msg));
msg.type = BDBUF_TEST_MSG_TYPE_DRIVER_REQ;
msg.val.driver_req.dev = dev;
msg.val.driver_req.req = req;
msg.val.driver_req.argp = argp;
rc = rtems_message_queue_send(testq_id, &msg, sizeof(msg));
if (rc != RTEMS_SUCCESSFUL)
{
printf("Error while sending a message to Test task: %u\n", rc);
return -1;
}
/* Wait for a reply from the test task */
msg_size = sizeof(msg);
rc = rtems_message_queue_receive(drvq_id, &msg, &msg_size,
RTEMS_WAIT, RTEMS_NO_TIMEOUT);
if (rc != RTEMS_SUCCESSFUL)
{
printf("Error while reading a message from Test task: %u\n", rc);
return rc;
}
if (msg.type != BDBUF_TEST_MSG_TYPE_DRIVER_REPLY)
{
printf("Unexpected message comes to test disk driver: %d\n",
msg.type);
return -1;
}
if (msg.val.driver_reply.ret_val != 0)
{
errno = msg.val.driver_reply.ret_errno;
}
else
{
rtems_blkdev_request *r = (rtems_blkdev_request *)argp;
r->req_done(r->done_arg, msg.val.driver_reply.res_status);
}
return msg.val.driver_reply.ret_val;
}