1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * efi_selftest_rtc
4 *
5 * Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
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"
13
14 static struct efi_runtime_services *runtime;
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 */
setup(const efi_handle_t handle,const struct efi_system_table * systable)23 static int setup(const efi_handle_t handle,
24 const struct efi_system_table *systable)
25 {
26 runtime = systable->runtime;
27 return EFI_ST_SUCCESS;
28 }
29
30 /*
31 * Execute unit test.
32 *
33 * Display current time.
34 *
35 * @return: EFI_ST_SUCCESS for success
36 */
execute(void)37 static int execute(void)
38 {
39 efi_status_t ret;
40 struct efi_time tm;
41
42 /* Display current time */
43 ret = runtime->get_time(&tm, NULL);
44 if (ret != EFI_SUCCESS) {
45 #ifdef CONFIG_CMD_DATE
46 efi_st_error(EFI_ST_NO_RTC);
47 return EFI_ST_FAILURE;
48 #else
49 efi_st_todo(EFI_ST_NO_RTC);
50 return EFI_ST_SUCCESS;
51 #endif
52 } else {
53 efi_st_printf("Time according to real time clock: "
54 "%.4u-%.2u-%.2u %.2u:%.2u:%.2u\n",
55 tm.year, tm.month, tm.day,
56 tm.hour, tm.minute, tm.second);
57 }
58
59 return EFI_ST_SUCCESS;
60 }
61
62 EFI_UNIT_TEST(rtc) = {
63 .name = "real time clock",
64 .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
65 .setup = setup,
66 .execute = execute,
67 };
68