efi_selftest_gop.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_gop
*
* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* Test the graphical output protocol.
*/
#include <efi_selftest.h>
static struct efi_boot_services *boottime;
static efi_guid_t efi_gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
static struct efi_gop *gop;
/*
* 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 handle,
const struct efi_system_table *systable)
{
efi_status_t ret;
boottime = systable->boottime;
ret = boottime->locate_protocol(&efi_gop_guid, NULL, (void **)&gop);
if (ret != EFI_SUCCESS) {
gop = NULL;
efi_st_printf("Graphical output protocol is not available.\n");
}
return EFI_ST_SUCCESS;
}
/*
* Tear down unit test.
*
* @return: EFI_ST_SUCCESS for success
*/
static int teardown(void)
{
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
efi_status_t ret;
u32 i, max_mode;
efi_uintn_t size;
struct efi_gop_mode_info *info;
if (!gop)
return EFI_ST_SUCCESS;
if (!gop->mode) {
efi_st_error("EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE missing\n");
return EFI_ST_FAILURE;
}
max_mode = gop->mode->max_mode;
if (!max_mode) {
efi_st_error("No graphical mode available\n");
return EFI_ST_FAILURE;
}
efi_st_printf("Number of available modes: %u\n", max_mode);
for (i = 0; i < max_mode; ++i) {
ret = gop->query_mode(gop, i, &size, &info);
if (ret != EFI_SUCCESS) {
efi_st_printf("Could not query mode %u\n", i);
return EFI_ST_FAILURE;
}
efi_st_printf("Mode %u: %u x %u\n",
i, info->width, info->height);
ret = boottime->free_pool(info);
if (ret != EFI_SUCCESS) {
efi_st_printf("FreePool failed");
return EFI_ST_FAILURE;
}
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(gop) = {
.name = "graphical output",
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
.teardown = teardown,
};