/**
* This validates and provides the loader image data
*
* @return 0 on success; nonzero on failure.
*/
int
split_app_go(void **entry, int toboot)
{
split_mode_t split_mode;
int run_app;
int rc;
if (toboot) {
split_mode = split_mode_get();
/* if we are told not to, then we don't boot an app */
if (split_mode == SPLIT_MODE_LOADER) {
return -1;
}
/* if this is a one-time test, reset the split mode */
switch (split_mode) {
case SPLIT_MODE_LOADER:
run_app = 0;
break;
case SPLIT_MODE_TEST_APP:
split_write_split(SPLIT_MODE_LOADER);
run_app = 1;
break;
case SPLIT_MODE_TEST_LOADER:
split_write_split(SPLIT_MODE_APP);
run_app = 0;
break;
case SPLIT_MODE_APP:
run_app = 1;
break;
default:
run_app = 0;
break;
}
if (!run_app) {
return -1;
}
}
rc = split_go(LOADER_IMAGE_SLOT, SPLIT_IMAGE_SLOT, entry);
if (rc != 0) {
/* Images don't match; clear split status. */
split_write_split(SPLIT_MODE_LOADER);
}
return rc;
}
uint8_t
imgmgr_state_flags(int query_slot)
{
split_mode_t split_mode;
uint8_t flags;
int swap_type;
assert(query_slot == 0 || query_slot == 1);
flags = 0;
/* Determine if this is is pending or confirmed (only applicable for
* unified images and loaders.
*/
swap_type = boot_swap_type();
switch (swap_type) {
case BOOT_SWAP_TYPE_NONE:
if (query_slot == 0) {
flags |= IMGMGR_STATE_F_CONFIRMED;
flags |= IMGMGR_STATE_F_ACTIVE;
}
break;
case BOOT_SWAP_TYPE_TEST:
if (query_slot == 0) {
flags |= IMGMGR_STATE_F_CONFIRMED;
} else if (query_slot == 1) {
flags |= IMGMGR_STATE_F_PENDING;
}
break;
case BOOT_SWAP_TYPE_REVERT:
if (query_slot == 0) {
flags |= IMGMGR_STATE_F_ACTIVE;
} else if (query_slot == 1) {
flags |= IMGMGR_STATE_F_CONFIRMED;
}
break;
}
/* Slot 0 is always active. Slot 1 is also active if a split app is
* currently running.
*/
/* XXX: The slot 0 assumption only holds when running from flash. */
if (query_slot == 0 || split_app_active_get()) {
flags |= IMGMGR_STATE_F_ACTIVE;
}
/* Read the split/status config state to determine any pending split-image
* state changes.
*/
split_mode = split_mode_get();
switch (split_mode) {
case SPLIT_MODE_LOADER:
break;
case SPLIT_MODE_APP:
if (query_slot == 1) {
flags |= IMGMGR_STATE_F_CONFIRMED;
}
break;
case SPLIT_MODE_TEST_LOADER:
if (query_slot == 0) {
flags |= IMGMGR_STATE_F_PENDING;
}
break;
case SPLIT_MODE_TEST_APP:
if (query_slot == 1) {
flags |= IMGMGR_STATE_F_PENDING;
}
break;
default:
assert(0);
break;
}
return flags;
}
