unit_test.c File Reference

SAM Event System Unit test.

Copyright (c) 2013-2020 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include <stdio_serial.h>
#include <string.h>
#include "conf_test.h"

Macros
#define	TEST_EVENT_GEN   EVSYS_ID_GEN_RTC_OVF
#define	TEST_EVENT_USER   EVSYS_ID_USER_TC1_EVU

Functions
static void	cdc_uart_init (void)
	Initialize the USART for unit test. More...
static void	cleanup_asynchronous_event_test (const struct test_case *test)
	Cleanup Function: Asynchronous event propagation. More...
static void	cleanup_resynchronous_event_test (const struct test_case *test)
	Cleanup Function: Resynchronized event propagation. More...
static void	cleanup_synchronous_event_test (const struct test_case *test)
	Cleanup Function: Synchronous event propagation. More...
int	main (void)
	Run Event System unit tests. More...
static void	run_asynchronous_event_test (const struct test_case *test)
	Test for event system in asynchronous mode. More...
static void	run_resynchronous_event_test (const struct test_case *test)
	Test for event system in resynchronous mode. More...
static void	run_synchronous_event_test (const struct test_case *test)
	Test for event system in synchronous mode. More...
static void	setup_asynchronous_event_test (const struct test_case *test)
	Setup Function: Asynchronous event propagation. More...
static void	setup_resynchronous_event_test (const struct test_case *test)
	Setup Function: Resynchronized event propagation. More...
static void	setup_synchronous_event_test (const struct test_case *test)
	Setup Function: Synchronous event propagation. More...
static void	test_event_gen_user_init (void)
	Initialize the (TC3 | TC1) & RTC for unit test. More...

Variables
struct usart_module	cdc_uart_module
struct events_resource	events
volatile bool	init_success
struct rtc_module	rtc_inst
struct tc_module	tc_inst

#define TEST_EVENT_GEN   EVSYS_ID_GEN_RTC_OVF

Referenced by setup_asynchronous_event_test(), setup_resynchronous_event_test(), and setup_synchronous_event_test().

#define TEST_EVENT_USER   EVSYS_ID_USER_TC1_EVU

Referenced by setup_asynchronous_event_test(), setup_resynchronous_event_test(), and setup_synchronous_event_test().

static void cdc_uart_init ( void  )

static

Initialize the USART for unit test.

Initializes the SERCOM USART used for sending the unit test status to the computer via the EDBG CDC gateway.

References usart_config::baudrate, cdc_uart_module, CONF_STDIO_BAUDRATE, CONF_STDIO_MUX_SETTING, CONF_STDIO_PINMUX_PAD0, CONF_STDIO_PINMUX_PAD1, CONF_STDIO_PINMUX_PAD2, CONF_STDIO_PINMUX_PAD3, CONF_STDIO_USART, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, usart_enable(), and usart_get_config_defaults().

Referenced by main().

static void cleanup_asynchronous_event_test ( const struct test_case *  test )

static

Cleanup Function: Asynchronous event propagation.

This function disables the RTC, clears the RTC COUNT register and stops the timer (TC3 | TC1).

Parameters

test	Current test case.

References events, events_release(), rtc_count_disable(), rtc_count_set_count(), rtc_inst, tc_inst, and tc_stop_counter().

Referenced by main().

static void cleanup_resynchronous_event_test ( const struct test_case *  test )

static

Cleanup Function: Resynchronized event propagation.

This function disables the RTC, clears the RTC COUNT register and stops the timer (TC3 | TC1).

Parameters

test	Current test case.

References events, events_release(), rtc_count_disable(), rtc_count_set_count(), rtc_inst, tc_inst, and tc_stop_counter().

Referenced by main().

static void cleanup_synchronous_event_test ( const struct test_case *  test )

static

Cleanup Function: Synchronous event propagation.

This function disables the RTC, clears the RTC COUNT register and stops the timer (TC3 | TC1).

Parameters

test	Current test case.

References events, events_release(), rtc_count_disable(), rtc_count_set_count(), rtc_inst, tc_inst, and tc_stop_counter().

Referenced by main().

int main

(

void

)

Run Event System unit tests.

Initializes the system and serial output, then sets up the Event system unit test suite and runs it.

References cdc_uart_init(), cleanup_asynchronous_event_test(), cleanup_resynchronous_event_test(), cleanup_synchronous_event_test(), DEFINE_TEST_ARRAY, DEFINE_TEST_CASE, DEFINE_TEST_SUITE, run_asynchronous_event_test(), run_resynchronous_event_test(), run_synchronous_event_test(), setup_asynchronous_event_test(), setup_resynchronous_event_test(), setup_synchronous_event_test(), system_init(), test_event_gen_user_init(), and test_suite_run().

static void run_asynchronous_event_test ( const struct test_case *  test )

static

Test for event system in asynchronous mode.

This test waits for event channel and user to be ready and then starts the RTC to generate overflow event. It waits until the timer is started. If the timer starts running then it can be assumed that the event has been propagated properly.

Parameters

test	Current test case.

References init_success, rtc_count_enable(), rtc_count_set_period(), rtc_inst, tc_get_count_value(), tc_inst, and test_assert_true.

Referenced by main().

static void run_resynchronous_event_test ( const struct test_case *  test )

static

Test for event system in resynchronous mode.

This test waits for event channel and user to be ready and then starts the RTC to generate overflow event. It waits until the timer is started. If the timer starts running then it can be assumed that the event has been propagated properly.

Parameters

test	Current test case.

References events, events_is_busy(), events_is_users_ready(), init_success, rtc_count_enable(), rtc_count_set_period(), rtc_inst, tc_get_count_value(), tc_inst, and test_assert_true.

Referenced by main().

static void run_synchronous_event_test ( const struct test_case *  test )

static

Test for event system in synchronous mode.

This test waits for event channel and user to be ready and then starts the RTC to generate overflow event. It waits until the timer is started. If the timer starts running then it can be assumed that the event has been propagated properly.

Parameters

test	Current test case.

References events, events_is_busy(), events_is_users_ready(), init_success, rtc_count_enable(), rtc_count_set_period(), rtc_inst, tc_get_count_value(), tc_inst, and test_assert_true.

Referenced by main().

static void setup_asynchronous_event_test ( const struct test_case *  test )

static

Setup Function: Asynchronous event propagation.

This function initializes the event system channel 0 and the RTC module (event generator). The event channel clock will not be enabled for asynchronous event propagation.

Parameters

test	Current test case.

References events, events_allocate(), events_attach_user(), events_get_config_defaults(), EVENTS_PATH_ASYNCHRONOUS, events_config::generator, events_config::path, TEST_EVENT_GEN, and TEST_EVENT_USER.

Referenced by main().

static void setup_resynchronous_event_test ( const struct test_case *  test )

static

Setup Function: Resynchronized event propagation.

This function initializes the event system channel 0 and the RTC module (event generator) to be in the different clock domain for resynchronized event propagation.

Parameters

test	Current test case.

References events_config::clock_source, events_config::edge_detect, events, events_allocate(), events_attach_user(), EVENTS_EDGE_DETECT_RISING, events_get_config_defaults(), EVENTS_PATH_RESYNCHRONIZED, GCLK_GENERATOR_0, events_config::generator, events_config::path, TEST_EVENT_GEN, and TEST_EVENT_USER.

Referenced by main().

static void setup_synchronous_event_test ( const struct test_case *  test )

static

Setup Function: Synchronous event propagation.

This function initializes the event system channel 0 and the RTC module (event generator) to be in the same clock domain for synchronous event propagation.

Parameters

test	Current test case.

References events_config::clock_source, events_config::edge_detect, events, events_allocate(), events_attach_user(), EVENTS_EDGE_DETECT_RISING, events_get_config_defaults(), EVENTS_PATH_SYNCHRONOUS, GCLK_GENERATOR_2, events_config::generator, events_config::path, TEST_EVENT_GEN, and TEST_EVENT_USER.

Referenced by main().

static void test_event_gen_user_init ( void  )

static

Initialize the (TC3 | TC1) & RTC for unit test.

Initializes the RTC module and (TC3 | TC1) module which are used as event generator and event user respectively.

References tc_16bit_config::compare_capture_channel, rtc_count_config::compare_values, rtc_count_config::continuously_update, tc_config::counter_16_bit, tc_events::event_action, rtc_count_events::generate_event_on_overflow, init_success, rtc_count_config::mode, tc_events::on_event_perform_action, rtc_count_config::prescaler, rtc_count_enable_events(), rtc_count_get_config_defaults(), rtc_count_init(), RTC_COUNT_MODE_16BIT, RTC_COUNT_PRESCALER_DIV_1, rtc_inst, STATUS_OK, tc_enable(), tc_enable_events(), TC_EVENT_ACTION_START, tc_get_config_defaults(), tc_init(), and tc_inst.

Referenced by main().

struct usart_module cdc_uart_module

Referenced by cdc_uart_init().

struct events_resource events

Referenced by cleanup_asynchronous_event_test(), cleanup_resynchronous_event_test(), cleanup_synchronous_event_test(), run_resynchronous_event_test(), run_synchronous_event_test(), setup_asynchronous_event_test(), setup_resynchronous_event_test(), and setup_synchronous_event_test().

volatile bool init_success

Referenced by run_asynchronous_event_test(), run_resynchronous_event_test(), run_synchronous_event_test(), and test_event_gen_user_init().

struct rtc_module rtc_inst

Referenced by cleanup_asynchronous_event_test(), cleanup_resynchronous_event_test(), cleanup_synchronous_event_test(), run_asynchronous_event_test(), run_resynchronous_event_test(), run_synchronous_event_test(), and test_event_gen_user_init().

struct tc_module tc_inst

Referenced by cleanup_asynchronous_event_test(), cleanup_resynchronous_event_test(), cleanup_synchronous_event_test(), run_asynchronous_event_test(), run_resynchronous_event_test(), run_synchronous_event_test(), and test_event_gen_user_init().