projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 8c588a58 HS |
1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* | |
| 3 | * efi_selftest_rtc | |
| 4 | * | |
| 5 | * Copyright (c) 2018 Heinrich Schuchardt <[email protected]> | |
| 6 | * | |
| 7 | * Test the real time clock runtime services. | |
| 8 | */ | |
| 9 | ||
| 10 | #include <efi_selftest.h> | |
| 11 | ||
| 12 | #define EFI_ST_NO_RTC "Could not read real time clock\n" | |
| 433bfe7b | 13 | #define EFI_ST_NO_RTC_SET "Could not set real time clock\n" |
| 8c588a58 HS |
14 | |
| 15 | static struct efi_runtime_services *runtime; | |
| 16 | ||
| 17 | /* | |
| 18 | * Setup unit test. | |
| 19 | * | |
| 20 | * @handle: handle of the loaded image | |
| 21 | * @systable: system table | |
| 3dd719d4 | 22 | * Return: EFI_ST_SUCCESS for success |
| 8c588a58 HS |
23 | */ |
| 24 | static int setup(const efi_handle_t handle, | |
| 25 | const struct efi_system_table *systable) | |
| 26 | { | |
| 27 | runtime = systable->runtime; | |
| 28 | return EFI_ST_SUCCESS; | |
| 29 | } | |
| 30 | ||
| 31 | /* | |
| 32 | * Execute unit test. | |
| 33 | * | |
| 433bfe7b HS |
34 | * Read and display current time. |
| 35 | * Set a new value and read it back. | |
| 36 | * Set the real time clock back the current time. | |
| 8c588a58 | 37 | * |
| 3dd719d4 | 38 | * Return: EFI_ST_SUCCESS for success |
| 8c588a58 HS |
39 | */ |
| 40 | static int execute(void) | |
| 41 | { | |
| 42 | efi_status_t ret; | |
| 5ec48e38 HS |
43 | struct efi_time tm_old; |
| 44 | #ifdef CONFIG_EFI_SET_TIME | |
| 45 | struct efi_time tm, tm_new = { | |
| 433bfe7b HS |
46 | .year = 2017, |
| 47 | .month = 5, | |
| 48 | .day = 19, | |
| 49 | .hour = 13, | |
| 50 | .minute = 47, | |
| 51 | .second = 53, | |
| 52 | }; | |
| 5ec48e38 | 53 | #endif |
| 8c588a58 HS |
54 | |
| 55 | /* Display current time */ | |
| 433bfe7b | 56 | ret = runtime->get_time(&tm_old, NULL); |
| 8c588a58 | 57 | if (ret != EFI_SUCCESS) { |
| 8c588a58 HS |
58 | efi_st_error(EFI_ST_NO_RTC); |
| 59 | return EFI_ST_FAILURE; | |
| 433bfe7b HS |
60 | } |
| 61 | efi_st_printf("Time according to real time clock: " | |
| 62 | "%.4u-%.2u-%.2u %.2u:%.2u:%.2u\n", | |
| 63 | tm_old.year, tm_old.month, tm_old.day, | |
| 64 | tm_old.hour, tm_old.minute, tm_old.second); | |
| 5ec48e38 | 65 | #ifdef CONFIG_EFI_SET_TIME |
| 433bfe7b HS |
66 | ret = runtime->set_time(&tm_new); |
| 67 | if (ret != EFI_SUCCESS) { | |
| 433bfe7b HS |
68 | efi_st_error(EFI_ST_NO_RTC_SET); |
| 69 | return EFI_ST_FAILURE; | |
| 433bfe7b HS |
70 | } |
| 71 | ret = runtime->get_time(&tm, NULL); | |
| 72 | if (ret != EFI_SUCCESS) { | |
| 73 | efi_st_error(EFI_ST_NO_RTC); | |
| 74 | return EFI_ST_FAILURE; | |
| 75 | } | |
| 76 | if (tm.year != tm_new.year || | |
| 77 | tm.month != tm_new.month || | |
| 78 | tm.day != tm_new.day || | |
| 79 | tm.hour != tm_new.hour || | |
| 80 | tm.minute != tm_new.minute || | |
| 81 | tm.second < tm_new.second || | |
| 82 | tm.second > tm_new.second + 2) { | |
| 83 | efi_st_error(EFI_ST_NO_RTC_SET); | |
| 84 | return EFI_ST_FAILURE; | |
| 85 | } | |
| 86 | /* Set time back to old value */ | |
| 87 | ret = runtime->set_time(&tm_old); | |
| 88 | if (ret != EFI_SUCCESS) { | |
| 89 | efi_st_error(EFI_ST_NO_RTC_SET); | |
| 90 | return EFI_ST_FAILURE; | |
| 8c588a58 | 91 | } |
| 5ec48e38 | 92 | #endif |
| 8c588a58 HS |
93 | |
| 94 | return EFI_ST_SUCCESS; | |
| 95 | } | |
| 96 | ||
| 97 | EFI_UNIT_TEST(rtc) = { | |
| 98 | .name = "real time clock", | |
| 99 | .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, | |
| 100 | .setup = setup, | |
| 101 | .execute = execute, | |
| 102 | }; |