[u-boot.git] / lib / efi_selftest / efi_selftest_rtc.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * efi_selftest_rtc
 *
 * Copyright (c) 2018 Heinrich Schuchardt <[email protected]>
 *
 * Test the real time clock runtime services.
 */

#include <efi_selftest.h>

#define EFI_ST_NO_RTC "Could not read real time clock\n"
#define EFI_ST_NO_RTC_SET "Could not set real time clock\n"

static struct efi_runtime_services *runtime;

/*
 * 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)
{
	runtime = systable->runtime;
	return EFI_ST_SUCCESS;
}

/*
 * Execute unit test.
 *
 * Read and display current time.
 * Set a new value and read it back.
 * Set the real time clock back the current time.
 *
 * Return:	EFI_ST_SUCCESS for success
 */
static int execute(void)
{
	efi_status_t ret;
	struct efi_time tm_old;
#ifdef CONFIG_EFI_SET_TIME
	struct efi_time tm, tm_new = {
		.year = 2017,
		.month = 5,
		.day = 19,
		.hour = 13,
		.minute = 47,
		.second = 53,
	};
#endif

	/* Display current time */
	ret = runtime->get_time(&tm_old, NULL);
	if (ret != EFI_SUCCESS) {
		efi_st_error(EFI_ST_NO_RTC);
		return EFI_ST_FAILURE;
	}
	efi_st_printf("Time according to real time clock: "
		      "%.4u-%.2u-%.2u %.2u:%.2u:%.2u\n",
		      tm_old.year, tm_old.month, tm_old.day,
		      tm_old.hour, tm_old.minute, tm_old.second);
#ifdef CONFIG_EFI_SET_TIME
	ret = runtime->set_time(&tm_new);
	if (ret != EFI_SUCCESS) {
		efi_st_error(EFI_ST_NO_RTC_SET);
		return EFI_ST_FAILURE;
	}
	ret = runtime->get_time(&tm, NULL);
	if (ret != EFI_SUCCESS) {
		efi_st_error(EFI_ST_NO_RTC);
		return EFI_ST_FAILURE;
	}
	if (tm.year != tm_new.year ||
	    tm.month != tm_new.month ||
	    tm.day != tm_new.day ||
	    tm.hour !=  tm_new.hour ||
	    tm.minute != tm_new.minute ||
	    tm.second < tm_new.second ||
	    tm.second > tm_new.second + 2) {
		efi_st_error(EFI_ST_NO_RTC_SET);
		return EFI_ST_FAILURE;
	}
	/* Set time back to old value */
	ret = runtime->set_time(&tm_old);
	if (ret != EFI_SUCCESS) {
		efi_st_error(EFI_ST_NO_RTC_SET);
		return EFI_ST_FAILURE;
	}
#endif

	return EFI_ST_SUCCESS;
}

EFI_UNIT_TEST(rtc) = {
	.name = "real time clock",
	.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
	.setup = setup,
	.execute = execute,
};
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
8c588a58 HS	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);
8c588a58 HS	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);
433bfe7b HS	67	if (ret != EFI_SUCCESS) {
433bfe7b HS	68	efi_st_error(EFI_ST_NO_RTC_SET);
433bfe7b HS	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	};