/*
* Execute unit test.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
char *str;
efi_status_t ret;
str = get_property(L"compatible");
if (str) {
efi_st_printf("compatible: %s\n", str);
ret = boottime->free_pool(str);
if (ret != EFI_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
} else {
efi_st_printf("Missing property 'compatible'\n");
return EFI_ST_FAILURE;
}
str = get_property(L"serial-number");
if (str) {
efi_st_printf("serial-number: %s\n", str);
ret = boottime->free_pool(str);
if (ret != EFI_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
}
return EFI_ST_SUCCESS;
}
/*
* Check CRC32 of a table.
*/
static int check_table(const void *table)
{
efi_status_t ret;
u32 crc32, res;
/* Casting from constant to not constant */
struct efi_table_hdr *hdr = (struct efi_table_hdr *)table;
crc32 = hdr->crc32;
/*
* Setting the CRC32 of the 'const' table to zero is easier than
* copying
*/
hdr->crc32 = 0;
ret = boottime->calculate_crc32(table, hdr->headersize, &res);
/* Reset table CRC32 so it stays constant */
hdr->crc32 = crc32;
if (ret != EFI_ST_SUCCESS) {
efi_st_error("CalculateCrc32 failed\n");
return EFI_ST_FAILURE;
}
if (res != crc32) {
efi_st_error("Incorrect CRC32\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Setup unit test.
*
* Create two timer events.
* One with EVT_NOTIFY_SIGNAL, the other with EVT_NOTIFY_WAIT.
*
* @handle: handle of the loaded image
* @systable: system table
* @return: EFI_ST_SUCCESS for success
*/
static int setup(const efi_handle_t handle,
const struct efi_system_table *systable)
{
efi_status_t ret;
boottime = systable->boottime;
notification_context.status = EFI_SUCCESS;
notification_context.timer_ticks = 0;
ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_CALLBACK, notify,
(void *)¬ification_context,
&event_notify);
if (ret != EFI_SUCCESS) {
efi_st_error("could not create event\n");
return EFI_ST_FAILURE;
}
ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_WAIT,
TPL_CALLBACK, notify, NULL, &event_wait);
if (ret != EFI_SUCCESS) {
efi_st_error("could not create event\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Tear down unit test.
*
* Close the events created in setup.
*
* @return: EFI_ST_SUCCESS for success
*/
static int teardown(void)
{
efi_status_t ret;
/* Set the watchdog timer to the five minute default value */
ret = boottime->set_watchdog_timer(300, 0, 0, NULL);
if (ret != EFI_SUCCESS) {
efi_st_error("Setting watchdog timer failed\n");
return EFI_ST_FAILURE;
}
if (event_notify) {
ret = boottime->close_event(event_notify);
event_notify = NULL;
if (ret != EFI_SUCCESS) {
efi_st_error("Could not close event\n");
return EFI_ST_FAILURE;
}
}
if (event_wait) {
ret = boottime->close_event(event_wait);
event_wait = NULL;
if (ret != EFI_SUCCESS) {
efi_st_error("Could not close event\n");
return EFI_ST_FAILURE;
}
}
return EFI_ST_SUCCESS;
}
/*
* Decompress the disk image.
*
* @image decompressed disk image
* @return status code
*/
static efi_status_t decompress(u8 **image)
{
u8 *buf;
size_t i;
size_t addr;
size_t len;
efi_status_t ret;
ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length,
(void **)&buf);
if (ret != EFI_SUCCESS) {
efi_st_error("Out of memory\n");
return ret;
}
boottime->set_mem(buf, img.length, 0);
for (i = 0; ; ++i) {
if (!img.lines[i].line)
break;
addr = img.lines[i].addr;
len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE;
if (addr + len > img.length)
len = img.length - addr;
boottime->copy_mem(buf + addr, img.lines[i].line, len);
}
*image = buf;
return ret;
}
/**
* execute() - execute unit test
*
* Return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
undefined_instruction();
efi_st_error("An undefined instruction exception was not raised\n");
return EFI_ST_FAILURE;
}
/*
* Execute unit test.
*
* Load and start the application image.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
efi_status_t ret;
efi_handle_t handle;
ret = boottime->load_image(false, image_handle, NULL, image,
img.length, &handle);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to load image\n");
return EFI_ST_FAILURE;
}
ret = boottime->start_image(handle, NULL, NULL);
if (ret != EFI_UNSUPPORTED) {
efi_st_error("Wrong return value from application\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Setup unit test.
*
* @handle: handle of the loaded image
* @systable: system table
* @return: EFI_ST_SUCCESS for success
*/
static int setup(const efi_handle_t img_handle,
const struct efi_system_table *systable)
{
void *acpi;
systemtab = systable;
boottime = systable->boottime;
acpi = efi_st_get_config_table(&acpi_guid);
fdt = efi_st_get_config_table(&fdt_guid);
if (!fdt) {
efi_st_error("Missing device tree\n");
return EFI_ST_FAILURE;
}
if (acpi) {
efi_st_error("Found ACPI table and device tree\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Tear down unit test.
*
* @return: EFI_ST_SUCCESS for success
*/
static int teardown(void)
{
efi_status_t r = EFI_ST_SUCCESS;
if (image) {
r = efi_free_pool(image);
if (r != EFI_SUCCESS) {
efi_st_error("Failed to free image\n");
return EFI_ST_FAILURE;
}
}
return r;
}
/*
* Tear down unit test.
*
* Close the events created in setup.
*
* @return: EFI_ST_SUCCESS for success
*/
static int teardown(void)
{
efi_status_t ret;
if (event_notify) {
ret = boottime->close_event(event_notify);
event_notify = NULL;
if (ret != EFI_SUCCESS) {
efi_st_error("could not close event\n");
return EFI_ST_FAILURE;
}
}
if (event_wait) {
ret = boottime->close_event(event_wait);
event_wait = NULL;
if (ret != EFI_SUCCESS) {
efi_st_error("could not close event\n");
return EFI_ST_FAILURE;
}
}
return EFI_ST_SUCCESS;
}
/*
* Setup unit test.
*
* @handle: handle of the loaded image
* @systable: system table
* @return: EFI_ST_SUCCESS for success
*/
static int setup(const efi_handle_t img_handle,
const struct efi_system_table *systable)
{
efi_uintn_t i;
boottime = systable->boottime;
/* Find configuration tables */
for (i = 0; i < systable->nr_tables; ++i) {
if (!efi_st_memcmp(&systable->tables[i].guid, &fdt_guid,
sizeof(efi_guid_t)))
fdt = systable->tables[i].table;
}
if (!fdt) {
efi_st_error("Missing device tree\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* Display current time.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
efi_status_t ret;
struct efi_time tm;
/* Display current time */
ret = runtime->get_time(&tm, NULL);
if (ret != EFI_SUCCESS) {
#ifdef CONFIG_CMD_DATE
efi_st_error(EFI_ST_NO_RTC);
return EFI_ST_FAILURE;
#else
efi_st_todo(EFI_ST_NO_RTC);
return EFI_ST_SUCCESS;
#endif
} else {
efi_st_printf("Time according to real time clock: "
"%.4u-%.2u-%.2u %.2u:%.2u:%.2u\n",
tm.year, tm.month, tm.day,
tm.hour, tm.minute, tm.second);
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* Run a 600 ms periodic timer that resets the watchdog to one second
* on every timer tick.
*
* Run a 1350 ms single shot timer and check that the 600ms timer has
* been called 2 times.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
size_t index;
efi_status_t ret;
/* Set the watchdog timeout to one second */
ret = boottime->set_watchdog_timer(1, 0, 0, NULL);
if (ret != EFI_SUCCESS) {
efi_st_error("Setting watchdog timer failed\n");
return EFI_ST_FAILURE;
}
if (watchdog_reset) {
/* Set 600 ms timer */
ret = boottime->set_timer(event_notify, EFI_TIMER_PERIODIC,
6000000);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
}
/* Set 1350 ms timer */
ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 13500000);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
ret = boottime->wait_for_event(1, &event_wait, &index);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not wait for event\n");
return EFI_ST_FAILURE;
}
if (notification_context.status != EFI_SUCCESS) {
efi_st_error("Setting watchdog timer failed\n");
return EFI_ST_FAILURE;
}
if (notification_context.timer_ticks != 2) {
efi_st_error("The timer was called %u times, expected 2.\n",
notification_context.timer_ticks);
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* Run a 10 ms periodic timer and check that it is called 10 times
* while waiting for 100 ms single shot timer.
*
* Run a 100 ms single shot timer and check that it is called once
* while waiting for 100 ms periodic timer for two periods.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
efi_uintn_t index;
efi_status_t ret;
/* Set 10 ms timer */
timer_ticks = 0;
ret = boottime->set_timer(event_notify, EFI_TIMER_PERIODIC, 100000);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
/* Set 100 ms timer */
ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 1000000);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
/* Set some arbitrary non-zero value to make change detectable. */
index = 5;
ret = boottime->wait_for_event(1, &event_wait, &index);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not wait for event\n");
return EFI_ST_FAILURE;
}
ret = boottime->check_event(event_wait);
if (ret != EFI_NOT_READY) {
efi_st_error("Signaled state was not cleared.\n");
efi_st_printf("ret = %u\n", (unsigned int)ret);
return EFI_ST_FAILURE;
}
if (index != 0) {
efi_st_error("WaitForEvent returned wrong index\n");
return EFI_ST_FAILURE;
}
if (timer_ticks < 8 || timer_ticks > 12) {
efi_st_printf("Notification count periodic: %u\n", timer_ticks);
efi_st_error("Incorrect timing of events\n");
return EFI_ST_FAILURE;
}
ret = boottime->set_timer(event_notify, EFI_TIMER_STOP, 0);
if (index != 0) {
efi_st_error("Could not cancel timer\n");
return EFI_ST_FAILURE;
}
/* Set 10 ms timer */
timer_ticks = 0;
ret = boottime->set_timer(event_notify, EFI_TIMER_RELATIVE, 100000);
if (index != 0) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
/* Set 100 ms timer */
ret = boottime->set_timer(event_wait, EFI_TIMER_PERIODIC, 1000000);
if (index != 0) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
ret = boottime->wait_for_event(1, &event_wait, &index);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not wait for event\n");
return EFI_ST_FAILURE;
}
if (timer_ticks != 1) {
efi_st_printf("Notification count single shot: %u\n",
timer_ticks);
efi_st_error("Single shot timer failed\n");
return EFI_ST_FAILURE;
}
ret = boottime->wait_for_event(1, &event_wait, &index);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not wait for event\n");
return EFI_ST_FAILURE;
}
if (timer_ticks != 1) {
efi_st_printf("Notification count stopped timer: %u\n",
timer_ticks);
efi_st_error("Stopped timer fired\n");
return EFI_ST_FAILURE;
}
ret = boottime->set_timer(event_wait, EFI_TIMER_STOP, 0);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not cancel timer\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* Create multiple events in an event group. Signal each event once and check
* that all events are notified once in each round.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
unsigned int counter[GROUP_SIZE] = {0};
struct efi_event *events[GROUP_SIZE];
size_t i, j;
efi_status_t ret;
for (i = 0; i < GROUP_SIZE; ++i) {
ret = boottime->create_event_ex(0, TPL_NOTIFY,
notify, (void *)&counter[i],
&event_group, &events[i]);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to create event\n");
return EFI_ST_FAILURE;
}
}
for (i = 0; i < GROUP_SIZE; ++i) {
ret = boottime->signal_event(events[i]);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to signal event\n");
return EFI_ST_FAILURE;
}
for (j = 0; j < GROUP_SIZE; ++j) {
if (counter[j] != i) {
efi_st_printf("i %u, j %u, count %u\n",
(unsigned int)i, (unsigned int)j,
(unsigned int)counter[j]);
efi_st_error(
"Notification function was called\n");
return EFI_ST_FAILURE;
}
/* Clear signaled state */
ret = boottime->check_event(events[j]);
if (ret != EFI_SUCCESS) {
efi_st_error("Event was not signaled\n");
return EFI_ST_FAILURE;
}
if (counter[j] != i) {
efi_st_printf("i %u, j %u, count %u\n",
(unsigned int)i, (unsigned int)j,
(unsigned int)counter[j]);
efi_st_error(
"Notification function was called\n");
return EFI_ST_FAILURE;
}
/* Call notification function */
ret = boottime->check_event(events[j]);
if (ret != EFI_NOT_READY) {
efi_st_error(
"Signaled state not cleared\n");
return EFI_ST_FAILURE;
}
if (counter[j] != i + 1) {
efi_st_printf("i %u, j %u, count %u\n",
(unsigned int)i, (unsigned int)j,
(unsigned int)counter[j]);
efi_st_error(
"Notification function not called\n");
return EFI_ST_FAILURE;
}
}
}
for (i = 0; i < GROUP_SIZE; ++i) {
ret = boottime->close_event(events[i]);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to close event\n");
return EFI_ST_FAILURE;
}
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* A table is installed, updated, removed. The table entry and the
* triggering of events is checked.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
efi_status_t ret;
unsigned int counter = 0;
struct efi_event *event;
void *table;
const unsigned int tables[2];
efi_uintn_t i;
efi_uintn_t tabcnt;
efi_uintn_t table_count = sys_table->nr_tables;
ret = boottime->create_event_ex(0, TPL_NOTIFY,
notify, (void *)&counter,
&table_guid, &event);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to create event\n");
return EFI_ST_FAILURE;
}
/* Try to delete non-existent table */
ret = boottime->install_configuration_table(&table_guid, NULL);
if (ret != EFI_NOT_FOUND) {
efi_st_error("Failed to detect missing table\n");
return EFI_ST_FAILURE;
}
if (counter) {
efi_st_error("Notification function was called.\n");
return EFI_ST_FAILURE;
}
/* Check if the event was signaled */
ret = boottime->check_event(event);
if (ret == EFI_SUCCESS) {
efi_st_error("Event was signaled on EFI_NOT_FOUND\n");
return EFI_ST_FAILURE;
}
if (counter != 1) {
efi_st_error("Notification function was not called.\n");
return EFI_ST_FAILURE;
}
if (table_count != sys_table->nr_tables) {
efi_st_error("Incorrect table count %u, expected %u\n",
(unsigned int)sys_table->nr_tables,
(unsigned int)table_count);
return EFI_ST_FAILURE;
}
/* Install table */
ret = boottime->install_configuration_table(&table_guid,
(void *)&tables[0]);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to install table\n");
return EFI_ST_FAILURE;
}
/* Check signaled state */
ret = boottime->check_event(event);
if (ret != EFI_SUCCESS) {
efi_st_error("Event was not signaled on insert\n");
return EFI_ST_FAILURE;
}
if (++table_count != sys_table->nr_tables) {
efi_st_error("Incorrect table count %u, expected %u\n",
(unsigned int)sys_table->nr_tables,
(unsigned int)table_count);
return EFI_ST_FAILURE;
}
table = NULL;
for (i = 0; i < sys_table->nr_tables; ++i) {
if (!efi_st_memcmp(&sys_table->tables[i].guid, &table_guid,
sizeof(efi_guid_t)))
table = sys_table->tables[i].table;
}
if (!table) {
efi_st_error("Installed table not found\n");
return EFI_ST_FAILURE;
}
if (table != &tables[0]) {
efi_st_error("Incorrect table address\n");
return EFI_ST_FAILURE;
}
if (check_table(sys_table) != EFI_ST_SUCCESS) {
efi_st_error("Checking system table\n");
return EFI_ST_FAILURE;
}
/* Update table */
ret = boottime->install_configuration_table(&table_guid,
(void *)&tables[1]);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to update table\n");
return EFI_ST_FAILURE;
}
/* Check signaled state */
ret = boottime->check_event(event);
if (ret != EFI_SUCCESS) {
efi_st_error("Event was not signaled on update\n");
return EFI_ST_FAILURE;
}
if (table_count != sys_table->nr_tables) {
efi_st_error("Incorrect table count %u, expected %u\n",
(unsigned int)sys_table->nr_tables,
(unsigned int)table_count);
return EFI_ST_FAILURE;
}
table = NULL;
tabcnt = 0;
for (i = 0; i < sys_table->nr_tables; ++i) {
if (!efi_st_memcmp(&sys_table->tables[i].guid, &table_guid,
sizeof(efi_guid_t))) {
table = sys_table->tables[i].table;
++tabcnt;
}
}
if (!table) {
efi_st_error("Installed table not found\n");
return EFI_ST_FAILURE;
}
if (tabcnt > 1) {
efi_st_error("Duplicate table GUID\n");
return EFI_ST_FAILURE;
}
if (table != &tables[1]) {
efi_st_error("Incorrect table address\n");
return EFI_ST_FAILURE;
}
if (check_table(sys_table) != EFI_ST_SUCCESS) {
efi_st_error("Checking system table\n");
return EFI_ST_FAILURE;
}
/* Delete table */
ret = boottime->install_configuration_table(&table_guid, NULL);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to delete table\n");
return EFI_ST_FAILURE;
}
/* Check signaled state */
ret = boottime->check_event(event);
if (ret != EFI_SUCCESS) {
efi_st_error("Event was not signaled on delete\n");
return EFI_ST_FAILURE;
}
if (--table_count != sys_table->nr_tables) {
efi_st_error("Incorrect table count %u, expected %u\n",
(unsigned int)sys_table->nr_tables,
(unsigned int)table_count);
return EFI_ST_FAILURE;
}
table = NULL;
for (i = 0; i < sys_table->nr_tables; ++i) {
if (!efi_st_memcmp(&sys_table->tables[i].guid, &table_guid,
sizeof(efi_guid_t))) {
table = sys_table->tables[i].table;
}
}
if (table) {
efi_st_error("Wrong table deleted\n");
return EFI_ST_FAILURE;
}
ret = boottime->close_event(event);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to close event\n");
return EFI_ST_FAILURE;
}
if (check_table(sys_table) != EFI_ST_SUCCESS) {
efi_st_error("Checking system table\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
size_t foreground;
size_t background;
size_t attrib;
efi_status_t ret;
s16 col;
u16 cr[] = { 0x0d, 0x00 };
u16 lf[] = { 0x0a, 0x00 };
u16 brahmi[] = { /* 2 Brahmi letters */
0xD804, 0xDC05,
0xD804, 0xDC22,
0};
/* SetAttribute */
efi_st_printf("\nColor palette\n");
for (foreground = 0; foreground < 0x10; ++foreground) {
for (background = 0; background < 0x80; background += 0x10) {
attrib = foreground | background;
con_out->set_attribute(con_out, attrib);
efi_st_printf("%p", (void *)attrib);
}
con_out->set_attribute(con_out, 0);
efi_st_printf("\n");
}
/* TestString */
ret = con_out->test_string(con_out,
L" !\"#$%&'()*+,-./0-9:;<=>?@A-Z[\\]^_`a-z{|}~\n");
if (ret != EFI_ST_SUCCESS) {
efi_st_error("TestString failed for ANSI characters\n");
return EFI_ST_FAILURE;
}
/* OutputString */
ret = con_out->output_string(con_out,
L"Testing cursor column update\n");
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for ANSI characters");
return EFI_ST_FAILURE;
}
col = con_out->mode->cursor_column;
ret = con_out->output_string(con_out, lf);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for line feed\n");
return EFI_ST_FAILURE;
}
if (con_out->mode->cursor_column != col) {
efi_st_error("Cursor column changed by line feed\n");
return EFI_ST_FAILURE;
}
ret = con_out->output_string(con_out, cr);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for carriage return\n");
return EFI_ST_FAILURE;
}
if (con_out->mode->cursor_column) {
efi_st_error("Cursor column not 0 at beginning of line\n");
return EFI_ST_FAILURE;
}
ret = con_out->output_string(con_out, L"123");
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for ANSI characters\n");
return EFI_ST_FAILURE;
}
if (con_out->mode->cursor_column != 3) {
efi_st_error("Cursor column not incremented properly\n");
return EFI_ST_FAILURE;
}
ret = con_out->output_string(con_out, L"\b");
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for backspace\n");
return EFI_ST_FAILURE;
}
if (con_out->mode->cursor_column != 2) {
efi_st_error("Cursor column not decremented properly\n");
return EFI_ST_FAILURE;
}
ret = con_out->output_string(con_out, L"\b\b");
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for backspace\n");
return EFI_ST_FAILURE;
}
if (con_out->mode->cursor_column) {
efi_st_error("Cursor column not decremented properly\n");
return EFI_ST_FAILURE;
}
ret = con_out->output_string(con_out, L"\b\b");
if (ret != EFI_ST_SUCCESS) {
efi_st_error("OutputString failed for backspace\n");
return EFI_ST_FAILURE;
}
if (con_out->mode->cursor_column) {
efi_st_error("Cursor column decremented past zero\n");
return EFI_ST_FAILURE;
}
ret = con_out->output_string(con_out, brahmi);
if (ret != EFI_ST_SUCCESS) {
efi_st_todo("Unicode output not fully supported\n");
} else if (con_out->mode->cursor_column != 2) {
efi_st_printf("Unicode not handled properly\n");
return EFI_ST_FAILURE;
}
efi_st_printf("\n");
return EFI_ST_SUCCESS;
}
