/*
 * Copyright (c) 2016 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/**
 * @addtogroup t_lifecycle
 * @{
 * @defgroup t_thread_init test_thread_init
 * @brief TestPurpose: verify thread initialization in all supported means
 * @details
 * - Test Steps
 *   -# initialize a thread in specific mean
 *   -# from thread entry function verify initialized fields
 * - Expected Results
 *   -# TESTPOINT: check initialized fields. Expect delay start, priority,
 * params of entry function are initialized as expected
 * - Verified Platforms
 *   -# qemu_x86, quark_se x86, quark_se arc, quark_d2000 x86, qemu_cortex_m3
 * @}
 */

#include <ztest.h>

/*macro definition*/
#define INIT_COOP_PRIO -2
#define INIT_COOP_STACK_SIZE 500
#define INIT_COOP_P1 ((void *)0xFFFF0000)
#define INIT_COOP_P2 ((void *)0xCDEF)
#define INIT_COOP_P3 ((void *)0x1234)
#define INIT_COOP_OPTION 0
#define INIT_COOP_DELAY 2000
#define INIT_PREEMPT_PRIO 1
#define INIT_PREEMPT_STACK_SIZE 499
#define INIT_PREEMPT_P1 ((void *)5)
#define INIT_PREEMPT_P2 ((void *)6)
#define INIT_PREEMPT_P3 ((void *)7)
#define INIT_PREEMPT_OPTION 0
#define INIT_PREEMPT_DELAY K_NO_WAIT

static void thread_entry(void *p1, void *p2, void *p3);

K_THREAD_DEFINE(T_KDEFINE_COOP_THREAD, INIT_COOP_STACK_SIZE,
	thread_entry, INIT_COOP_P1, INIT_COOP_P2, INIT_COOP_P3,
	INIT_COOP_PRIO, INIT_COOP_OPTION, INIT_COOP_DELAY);

K_THREAD_DEFINE(T_KDEFINE_PREEMPT_THREAD, INIT_PREEMPT_STACK_SIZE,
	thread_entry, INIT_PREEMPT_P1, INIT_PREEMPT_P2, INIT_PREEMPT_P3,
	INIT_PREEMPT_PRIO, INIT_PREEMPT_OPTION, INIT_PREEMPT_DELAY);

K_SEM_DEFINE(start_sema, 0, 1);

K_SEM_DEFINE(end_sema, 0, 1);

/*local variables*/
static char __noinit __stack stack_coop[INIT_COOP_STACK_SIZE];
static char __noinit __stack stack_preempt[INIT_PREEMPT_STACK_SIZE];
static struct k_thread thread_coop;
static struct k_thread thread_preempt;
static u64_t t_create;
static struct thread_data{
	int init_prio;
	s32_t init_delay;
	void *init_p1;
	void *init_p2;
	void *init_p3;
} expected;

/*entry routines*/
static void thread_entry(void *p1, void *p2, void *p3)
{
	if (t_create) {
		u64_t t_delay = k_uptime_get() - t_create;
		/**TESTPOINT: check delay start*/
		zassert_true(t_delay >= expected.init_delay,
			"k_thread_create delay start failed\n");
	}

	k_sem_take(&start_sema, K_FOREVER);

	k_tid_t tid = k_current_get();
	/**TESTPOINT: check priority and params*/
	zassert_equal(k_thread_priority_get(tid), expected.init_prio, NULL);
	zassert_equal(p1, expected.init_p1, NULL);
	zassert_equal(p2, expected.init_p2, NULL);
	zassert_equal(p3, expected.init_p3, NULL);
	/*option, stack size, not checked, no public API to get these values*/

	k_sem_give(&end_sema);
}

/*test cases*/
/**
 * @ingroup t_thread_init
 * @brief test preempt thread initialization via K_THREAD_DEFINE
 */
void test_kdefine_preempt_thread(void)
{
	/*static thread created time unknown, skip it*/
	t_create = 0;
	expected.init_p1 = INIT_PREEMPT_P1;
	expected.init_p2 = INIT_PREEMPT_P2;
	expected.init_p3 = INIT_PREEMPT_P3;
	expected.init_prio = INIT_PREEMPT_PRIO;
	expected.init_delay = INIT_PREEMPT_DELAY;
	k_sem_reset(&start_sema);
	k_sem_reset(&end_sema);

	/*signal thread to start*/
	k_sem_give(&start_sema);
	/*wait for thread to exit*/
	k_sem_take(&end_sema, K_FOREVER);
}

/**
 * @ingroup t_thread_init
 * @brief test coop thread initialization via K_THREAD_DEFINE
 */
void test_kdefine_coop_thread(void)
{
	/*static thread creation time unknown, skip it*/
	t_create = 0;
	expected.init_p1 = INIT_COOP_P1;
	expected.init_p2 = INIT_COOP_P2;
	expected.init_p3 = INIT_COOP_P3;
	expected.init_prio = INIT_COOP_PRIO;
	expected.init_delay = INIT_COOP_DELAY;
	k_sem_reset(&start_sema);
	k_sem_reset(&end_sema);

	/*signal thread to start*/
	k_sem_give(&start_sema);
	/*wait for thread to exit*/
	k_sem_take(&end_sema, K_FOREVER);
}

/**
 * @ingroup t_thread_init
 * @brief test preempt thread initialization via k_thread_create
 */
void test_kinit_preempt_thread(void)
{
	/*create preempt thread*/
	k_tid_t pthread = k_thread_create(&thread_preempt, stack_preempt,
		INIT_PREEMPT_STACK_SIZE, thread_entry, INIT_PREEMPT_P1,
		INIT_PREEMPT_P2, INIT_PREEMPT_P3, INIT_PREEMPT_PRIO,
		INIT_PREEMPT_OPTION, INIT_PREEMPT_DELAY);
	/*record time stamp of thread creation*/
	t_create = k_uptime_get();
	zassert_not_null(pthread, "thread creation failed\n");

	expected.init_p1 = INIT_PREEMPT_P1;
	expected.init_p2 = INIT_PREEMPT_P2;
	expected.init_p3 = INIT_PREEMPT_P3;
	expected.init_prio = INIT_PREEMPT_PRIO;
	expected.init_delay = INIT_PREEMPT_DELAY;
	k_sem_reset(&start_sema);
	k_sem_reset(&end_sema);

	/*signal thread to start*/
	k_sem_give(&start_sema);
	/*wait for thread to exit*/
	k_sem_take(&end_sema, K_FOREVER);
}

/**
 * @ingroup t_thread_init
 * @brief test coop thread initialization via k_thread_create
 */
void test_kinit_coop_thread(void)
{
	/*create coop thread*/
	k_tid_t pthread = k_thread_create(&thread_coop, stack_coop,
		INIT_COOP_STACK_SIZE, thread_entry, INIT_COOP_P1,
		INIT_COOP_P2, INIT_COOP_P3, INIT_COOP_PRIO,
		INIT_COOP_OPTION, INIT_COOP_DELAY);
	/*record time stamp of thread creation*/
	t_create = k_uptime_get();
	zassert_not_null(pthread, "thread spawn failed\n");

	expected.init_p1 = INIT_COOP_P1;
	expected.init_p2 = INIT_COOP_P2;
	expected.init_p3 = INIT_COOP_P3;
	expected.init_prio = INIT_COOP_PRIO;
	expected.init_delay = INIT_COOP_DELAY;
	k_sem_reset(&start_sema);
	k_sem_reset(&end_sema);

	/*signal thread to start*/
	k_sem_give(&start_sema);
	/*wait for thread to exit*/
	k_sem_take(&end_sema, K_FOREVER);
}