1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * efi_selftest_gop 4 * 5 * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk (at) gmx.de> 6 * 7 * Test the graphical output protocol. 8 */ 9 10 #include <efi_selftest.h> 11 12 static struct efi_boot_services *boottime; 13 static efi_guid_t efi_gop_guid = EFI_GOP_GUID; 14 static 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 */ 23 static 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 */ 44 static 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 */ 54 static 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 } 84 85 return EFI_ST_SUCCESS; 86 } 87 88 EFI_UNIT_TEST(gop) = { 89 .name = "graphical output", 90 .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, 91 .setup = setup, 92 .execute = execute, 93 .teardown = teardown, 94 }; 95
