LXR uboot/lib/efi_selftest/efi_selftest

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * efi_selftest_gop
   4 *
   5 * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
   6 *
   7 * Test the graphical output protocol.
   8 */
   9
  10#include <efi_selftest.h>
  11
  12static struct efi_boot_services *boottime;
  13static efi_guid_t efi_gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
  14static struct efi_gop *gop;
  15
  16/*
  17 * Setup unit test.
  18 *
  19 * @handle:     handle of the loaded image
  20 * @systable:   system table
  21 * @return:     EFI_ST_SUCCESS for success
  22 */
  23static int setup(const efi_handle_t handle,
  24                 const struct efi_system_table *systable)
  25{
  26        efi_status_t ret;
  27
  28        boottime = systable->boottime;
  29
  30        ret = boottime->locate_protocol(&efi_gop_guid, NULL, (void **)&gop);
  31        if (ret != EFI_SUCCESS) {
  32                gop = NULL;
  33                efi_st_printf("Graphical output protocol is not available.\n");
  34        }
  35
  36        return EFI_ST_SUCCESS;
  37}
  38
  39/*
  40 * Tear down unit test.
  41 *
  42 * @return:     EFI_ST_SUCCESS for success
  43 */
  44static int teardown(void)
  45{
  46        return EFI_ST_SUCCESS;
  47}
  48
  49/*
  50 * Execute unit test.
  51 *
  52 * @return:     EFI_ST_SUCCESS for success
  53 */
  54static int execute(void)
  55{
  56        efi_status_t ret;
  57        u32 i, max_mode;
  58        efi_uintn_t size;
  59        struct efi_gop_mode_info *info;
  60
  61        if (!gop)
  62                return EFI_ST_SUCCESS;
  63
  64        if (!gop->mode) {
  65                efi_st_error("EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE missing\n");
  66                return EFI_ST_FAILURE;
  67        }
  68        max_mode = gop->mode->max_mode;
  69        if (!max_mode) {
  70                efi_st_error("No graphical mode available\n");
  71                return EFI_ST_FAILURE;
  72        }
  73        efi_st_printf("Number of available modes: %u\n", max_mode);
  74
  75        for (i = 0; i < max_mode; ++i) {
  76                ret = gop->query_mode(gop, i, &size, &info);
  77                if (ret != EFI_SUCCESS) {
  78                        efi_st_printf("Could not query mode %u\n", i);
  79                        return EFI_ST_FAILURE;
  80                }
  81                efi_st_printf("Mode %u: %u x %u\n",
  82                              i, info->width, info->height);
  83                ret = boottime->free_pool(info);
  84                if (ret != EFI_SUCCESS) {
  85                        efi_st_printf("FreePool failed");
  86                        return EFI_ST_FAILURE;
  87                }
  88        }
  89
  90        return EFI_ST_SUCCESS;
  91}
  92
  93EFI_UNIT_TEST(gop) = {
  94        .name = "graphical output",
  95        .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
  96        .setup = setup,
  97        .execute = execute,
  98        .teardown = teardown,
  99};
 100