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OVMS3-idf/components/driver/test/test_timer.c
chenjianqiang cb4ed98df7 bugfix(timer): improve timer unit test case
2020-06-15 16:12:51 +08:00

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#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "esp_system.h"
#include "unity.h"
#include "nvs_flash.h"
#include "driver/timer.h"
#include "soc/rtc.h"
#define TIMER_DIVIDER 16
#define TIMER_SCALE (TIMER_BASE_CLK / TIMER_DIVIDER) /*!< used to calculate counter value */
#define TIMER_DELTA 0.001
static bool alarm_flag;
static xQueueHandle timer_queue;
typedef struct {
timer_group_t timer_group;
timer_idx_t timer_idx;
} timer_info_t;
typedef struct {
timer_autoreload_t type; // the type of timer's event
timer_group_t timer_group;
timer_idx_t timer_idx;
uint64_t timer_counter_value;
} timer_event_t;
#define TIMER_INFO_INIT(TG, TID) {.timer_group = (TG), .timer_idx = (TID),}
static timer_info_t timer_info[4] = {
TIMER_INFO_INIT(TIMER_GROUP_0, TIMER_0),
TIMER_INFO_INIT(TIMER_GROUP_0, TIMER_1),
TIMER_INFO_INIT(TIMER_GROUP_1, TIMER_0),
TIMER_INFO_INIT(TIMER_GROUP_1, TIMER_1),
};
#define GET_TIMER_INFO(TG, TID) (&timer_info[(TG)*2+(TID)])
// timer group interruption handle callback
static bool test_timer_group_isr_cb(void *arg)
{
bool is_awoken = false;
timer_info_t* info = (timer_info_t*) arg;
const timer_group_t timer_group = info->timer_group;
const timer_idx_t timer_idx = info->timer_idx;
uint64_t timer_val;
double time;
uint64_t alarm_value;
timer_event_t evt;
alarm_flag = true;
if (timer_group_get_auto_reload_in_isr(timer_group, timer_idx)) { // For autoreload mode, the counter value has been cleared
timer_group_clr_intr_status_in_isr(timer_group, timer_idx);
ets_printf("This is TG%d timer[%d] reload-timer alarm!\n", timer_group, timer_idx);
timer_get_counter_value(timer_group, timer_idx, &timer_val);
timer_get_counter_time_sec(timer_group, timer_idx, &time);
evt.type = TIMER_AUTORELOAD_EN;
} else {
timer_group_clr_intr_status_in_isr(timer_group, timer_idx);
ets_printf("This is TG%d timer[%d] count-up-timer alarm!\n", timer_group, timer_idx);
timer_get_counter_value(timer_group, timer_idx, &timer_val);
timer_get_counter_time_sec(timer_group, timer_idx, &time);
timer_get_alarm_value(timer_group, timer_idx, &alarm_value);
timer_set_counter_value(timer_group, timer_idx, 0);
evt.type = TIMER_AUTORELOAD_DIS;
}
evt.timer_group = timer_group;
evt.timer_idx = timer_idx;
evt.timer_counter_value = timer_val;
if (timer_queue != NULL) {
BaseType_t awoken = pdFALSE;
BaseType_t ret = xQueueSendFromISR(timer_queue, &evt, &awoken);
TEST_ASSERT_EQUAL(pdTRUE, ret);
if (awoken) is_awoken = true;
}
return is_awoken;
}
// timer group interruption handle
static void test_timer_group_isr(void *arg)
{
if (test_timer_group_isr_cb(arg)) {
portYIELD_FROM_ISR();
}
}
// initialize all timer
static void all_timer_init(timer_config_t *config, bool expect_init)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ASSERT_EQUAL((expect_init ? ESP_OK : ESP_ERR_INVALID_ARG), timer_init(tg_idx, timer_idx, config));
}
}
if (timer_queue == NULL) {
timer_queue = xQueueCreate(10, sizeof(timer_event_t));
}
}
// deinitialize all timer
static void all_timer_deinit(void)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_deinit(tg_idx, timer_idx));
}
}
if (timer_queue != NULL) {
vQueueDelete(timer_queue);
timer_queue = NULL;
}
}
// start all of timer
static void all_timer_start(void)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_start(tg_idx, timer_idx));
}
}
}
static void all_timer_set_counter_value(uint64_t set_cnt_val)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_set_counter_value(tg_idx, timer_idx, set_cnt_val));
}
}
}
static void all_timer_pause(void)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_pause(tg_idx, timer_idx));
}
}
}
static void all_timer_get_counter_value(uint64_t set_cnt_val, bool expect_equal_set_val,
uint64_t *actual_cnt_val)
{
uint64_t current_cnt_val;
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_get_counter_value(tg_idx, timer_idx, &current_cnt_val));
if (expect_equal_set_val) {
TEST_ASSERT_EQUAL(set_cnt_val, current_cnt_val);
} else {
TEST_ASSERT_NOT_EQUAL(set_cnt_val, current_cnt_val);
if (actual_cnt_val != NULL) {
actual_cnt_val[tg_idx*TIMER_GROUP_MAX + timer_idx] = current_cnt_val;
}
}
}
}
}
static void all_timer_get_counter_time_sec(int expect_time)
{
double time;
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_get_counter_time_sec(tg_idx, timer_idx, &time));
TEST_ASSERT_FLOAT_WITHIN(TIMER_DELTA, expect_time, time);
}
}
}
static void all_timer_set_counter_mode(timer_count_dir_t counter_dir)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_set_counter_mode(tg_idx, timer_idx, counter_dir));
}
}
}
static void all_timer_set_divider(uint32_t divider)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_set_divider(tg_idx, timer_idx, divider));
}
}
}
static void all_timer_set_alarm_value(uint64_t alarm_cnt_val)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_set_alarm_value(tg_idx, timer_idx, alarm_cnt_val));
}
}
}
static void all_timer_isr_reg(void)
{
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_isr_register(tg_idx, timer_idx, test_timer_group_isr,
GET_TIMER_INFO(tg_idx, timer_idx), ESP_INTR_FLAG_LOWMED, NULL));
}
}
}
// enable interrupt and start timer
static void timer_intr_enable_and_start(int timer_group, int timer_idx, double alarm_time)
{
TEST_ESP_OK(timer_pause(timer_group, timer_idx));
TEST_ESP_OK(timer_set_counter_value(timer_group, timer_idx, 0x0));
TEST_ESP_OK(timer_set_alarm_value(timer_group, timer_idx, alarm_time * TIMER_SCALE));
TEST_ESP_OK(timer_enable_intr(timer_group, timer_idx));
TEST_ESP_OK(timer_start(timer_group, timer_idx));
}
static void timer_isr_check(timer_group_t group_num, timer_idx_t timer_num, timer_autoreload_t autoreload, uint64_t alarm_cnt_val)
{
timer_event_t evt;
TEST_ASSERT_EQUAL(pdTRUE, xQueueReceive(timer_queue, &evt, 3000 / portTICK_PERIOD_MS));
TEST_ASSERT_EQUAL(autoreload, evt.type);
TEST_ASSERT_EQUAL(group_num, evt.timer_group);
TEST_ASSERT_EQUAL(timer_num, evt.timer_idx);
TEST_ASSERT_EQUAL((uint32_t)(alarm_cnt_val >> 32), (uint32_t)(evt.timer_counter_value >> 32));
TEST_ASSERT_UINT32_WITHIN(1000, (uint32_t)(alarm_cnt_val), (uint32_t)(evt.timer_counter_value));
}
static void timer_intr_enable_disable_test(timer_group_t group_num, timer_idx_t timer_num, uint64_t alarm_cnt_val)
{
alarm_flag = false;
TEST_ESP_OK(timer_set_counter_value(group_num, timer_num, 0));
TEST_ESP_OK(timer_set_alarm(group_num, timer_num, TIMER_ALARM_EN));
TEST_ESP_OK(timer_enable_intr(group_num, timer_num));
TEST_ESP_OK(timer_start(group_num, timer_num));
timer_isr_check(group_num, timer_num, TIMER_AUTORELOAD_DIS, alarm_cnt_val);
TEST_ASSERT_EQUAL(true, alarm_flag);
// disable interrupt of tg0_timer0
alarm_flag = false;
TEST_ESP_OK(timer_pause(group_num, timer_num));
TEST_ESP_OK(timer_set_counter_value(group_num, timer_num, 0));
TEST_ESP_OK(timer_disable_intr(group_num, timer_num));
TEST_ESP_OK(timer_start(group_num, timer_num));
vTaskDelay(2000 / portTICK_PERIOD_MS);
TEST_ASSERT_EQUAL(false, alarm_flag);
}
TEST_CASE("Timer init", "[hw_timer]")
{
// Test init 1:config parameter
// empty parameter
timer_config_t config0 = { };
all_timer_init(&config0, false);
// only one parameter
timer_config_t config1 = {
.auto_reload = TIMER_AUTORELOAD_EN
};
all_timer_init(&config1, false);
// lack one parameter
timer_config_t config2 = {
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
all_timer_init(&config2, true);
config2.counter_en = TIMER_PAUSE;
all_timer_init(&config2, true);
// error config parameter
timer_config_t config3 = {
.alarm_en = 3, //error parameter
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
all_timer_init(&config3, true);
timer_config_t get_config;
TEST_ESP_OK(timer_get_config(TIMER_GROUP_1, TIMER_1, &get_config));
printf("Error config alarm_en is %d\n", get_config.alarm_en);
TEST_ASSERT_NOT_EQUAL(config3.alarm_en, get_config.alarm_en);
// Test init 2: init
uint64_t set_timer_val = 0x0;
timer_config_t config = {
.alarm_en = TIMER_ALARM_DIS,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
// judge get config parameters
TEST_ESP_OK(timer_init(TIMER_GROUP_0, TIMER_0, &config));
TEST_ESP_OK(timer_get_config(TIMER_GROUP_0, TIMER_0, &get_config));
TEST_ASSERT_EQUAL(config.alarm_en, get_config.alarm_en);
TEST_ASSERT_EQUAL(config.auto_reload, get_config.auto_reload);
TEST_ASSERT_EQUAL(config.counter_dir, get_config.counter_dir);
TEST_ASSERT_EQUAL(config.counter_en, get_config.counter_en);
TEST_ASSERT_EQUAL(config.intr_type, get_config.intr_type);
TEST_ASSERT_EQUAL(config.divider, get_config.divider);
all_timer_init(&config, true);
all_timer_pause();
all_timer_set_counter_value(set_timer_val);
all_timer_start();
all_timer_get_counter_value(set_timer_val, false, NULL);
// Test init 3: wrong parameter
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_init(-1, TIMER_1, &config));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_init(TIMER_GROUP_1, 2, &config));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_init(TIMER_GROUP_1, -1, &config));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_init(2, TIMER_1, &config));
all_timer_deinit();
}
/**
* read count case:
* 1. start timer compare value
* 2. pause timer compare value
* 3. delay some time */
TEST_CASE("Timer read counter value", "[hw_timer]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
uint64_t set_timer_val = 0x0;
all_timer_init(&config, true);
// Test read value 1: start timer get counter value
all_timer_set_counter_value(set_timer_val);
all_timer_start();
all_timer_get_counter_value(set_timer_val, false, NULL);
// Test read value 2: pause timer get counter value
all_timer_pause();
set_timer_val = 0x30405000ULL;
all_timer_set_counter_value(set_timer_val);
all_timer_get_counter_value(set_timer_val, true, NULL);
// Test read value 3:delay 1s get counter value
set_timer_val = 0x0;
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS);
all_timer_get_counter_time_sec(1);
all_timer_deinit();
}
/**
* start timer case:
* 1. normal start
* 2. error start parameter
* */
TEST_CASE("Timer start", "[hw_timer]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
uint64_t set_timer_val = 0x0;
all_timer_init(&config, true);
//Test start 1: normal start
all_timer_start();
all_timer_set_counter_value(set_timer_val);
all_timer_get_counter_value(set_timer_val, false, NULL);
//Test start 2:wrong parameter
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_start(2, TIMER_1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_start(-1, TIMER_1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_start(TIMER_GROUP_1, 2));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_start(TIMER_GROUP_1, -1));
all_timer_deinit();
}
/**
* pause timer case:
* 1. normal pause, read value
* 2. error pause error
*/
TEST_CASE("Timer pause", "[hw_timer]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
uint64_t set_timer_val = 0x0;
all_timer_init(&config, true);
//Test pause 1: right parameter
all_timer_pause();
all_timer_set_counter_value(set_timer_val);
all_timer_get_counter_value(set_timer_val, true, NULL);
//Test pause 2: wrong parameter
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_pause(-1, TIMER_0));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_pause(TIMER_GROUP_0, -1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_pause(2, TIMER_0));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_pause(TIMER_GROUP_1, 2));
all_timer_deinit();
}
// positive mode and negative mode
TEST_CASE("Timer counter mode (up / down)", "[hw_timer]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
uint64_t set_timer_val = 0x0;
all_timer_init(&config, true);
all_timer_pause();
// Test counter mode 1: TIMER_COUNT_UP
all_timer_set_counter_mode(TIMER_COUNT_UP);
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS);
all_timer_get_counter_time_sec(1);
// Test counter mode 2: TIMER_COUNT_DOWN
all_timer_pause();
set_timer_val = 0x00E4E1C0ULL; // 3s clock counter value
all_timer_set_counter_mode(TIMER_COUNT_DOWN);
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS);
all_timer_get_counter_time_sec(2);
// Test counter mode 3 : wrong parameter
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_counter_mode(TIMER_GROUP_0, TIMER_0, -1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_counter_mode(TIMER_GROUP_0, TIMER_0, 2));
all_timer_deinit();
}
/**
* divider case:
* 1. different divider, read value
* Note: divide 0 = divide max, divide 1 = divide 2
* 2. error parameter
*
* the frequency(timer counts in one sec):
* 80M/divider = 800*100000
* max divider value is 65536, its frequency is 1220 (nearly about 1KHz)
*/
TEST_CASE("Timer divider", "[hw_timer]")
{
int i;
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_START,
.intr_type = TIMER_INTR_LEVEL
};
uint64_t set_timer_val = 0;
uint64_t time_val[4];
uint64_t comp_time_val[4];
all_timer_init(&config, true);
all_timer_pause();
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS);
all_timer_get_counter_value(set_timer_val, false, time_val);
// compare divider 16 and 8, value should be double
all_timer_pause();
all_timer_set_divider(8);
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS); //delay the same time
all_timer_get_counter_value(set_timer_val, false, comp_time_val);
for (i = 0; i < 4; i++) {
TEST_ASSERT_INT_WITHIN(5000, 5000000, time_val[i]);
TEST_ASSERT_INT_WITHIN(10000, 10000000, comp_time_val[i]);
}
// divider is 256, value should be 2^4
all_timer_pause();
all_timer_set_divider(256);
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS); //delay the same time
all_timer_get_counter_value(set_timer_val, false, comp_time_val);
for (i = 0; i < 4; i++) {
TEST_ASSERT_INT_WITHIN(5000, 5000000, time_val[i]);
TEST_ASSERT_INT_WITHIN(3126, 312500, comp_time_val[i]);
}
// extrem value test
all_timer_pause();
all_timer_set_divider(2);
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS);
all_timer_get_counter_value(set_timer_val, false, comp_time_val);
for (i = 0; i < 4; i++) {
TEST_ASSERT_INT_WITHIN(5000, 5000000, time_val[i]);
TEST_ASSERT_INT_WITHIN(40000 , 40000000, comp_time_val[i]);
}
all_timer_pause();
all_timer_set_divider(65536);
all_timer_set_counter_value(set_timer_val);
all_timer_start();
vTaskDelay(1000 / portTICK_PERIOD_MS); //delay the same time
all_timer_get_counter_value(set_timer_val, false, comp_time_val);
for (i = 0; i < 4; i++) {
TEST_ASSERT_INT_WITHIN(5000, 5000000, time_val[i]);
TEST_ASSERT_INT_WITHIN(2 , 1220, comp_time_val[i]);
}
// divider is 1 should be equal with 2
all_timer_pause();
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_0, TIMER_0, 1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_1, TIMER_0, 1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_0, TIMER_1, 1));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_1, TIMER_1, 1));
all_timer_pause();
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_0, TIMER_0, 65537));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_1, TIMER_0, 65537));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_0, TIMER_1, 65537));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, timer_set_divider(TIMER_GROUP_1, TIMER_1, 65537));
all_timer_deinit();
}
/**
* enable alarm case:
* 1. enable alarm ,set alarm value and get value
* 2. disable alarm ,set alarm value and get value
*/
TEST_CASE("Timer enable alarm", "[hw_timer]")
{
timer_config_t config_test = {
.alarm_en = TIMER_ALARM_DIS,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL
};
all_timer_init(&config_test, true);
all_timer_isr_reg();
// enable alarm of tg0_timer1
alarm_flag = false;
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_0, TIMER_1, TIMER_ALARM_EN));
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_1, 1.2);
timer_isr_check(TIMER_GROUP_0, TIMER_1, TIMER_AUTORELOAD_DIS, 1.2 * TIMER_SCALE);
TEST_ASSERT_EQUAL(true, alarm_flag);
// disable alarm of tg0_timer1
alarm_flag = false;
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_0, TIMER_1, TIMER_ALARM_DIS));
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_1, 1.2);
vTaskDelay(2000 / portTICK_PERIOD_MS);
TEST_ASSERT_EQUAL(false, alarm_flag);
// enable alarm of tg1_timer0
alarm_flag = false;
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_1, TIMER_0, TIMER_ALARM_EN));
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_0, 1.2);
timer_isr_check(TIMER_GROUP_1, TIMER_0, TIMER_AUTORELOAD_DIS, 1.2 * TIMER_SCALE);
TEST_ASSERT_EQUAL(true, alarm_flag);
// disable alarm of tg1_timer0
alarm_flag = false;
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_1, TIMER_0, TIMER_ALARM_DIS));
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_0, 1.2);
vTaskDelay(2000 / portTICK_PERIOD_MS);
TEST_ASSERT_EQUAL(false, alarm_flag);
all_timer_deinit();
}
/**
* alarm value case:
* 1. set alarm value and get value
* 2. interrupt test time
*/
TEST_CASE("Timer set alarm value", "[hw_timer]")
{
int i;
uint64_t alarm_val[4];
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL
};
all_timer_init(&config, true);
all_timer_isr_reg();
// set and get alarm value
all_timer_set_alarm_value(3 * TIMER_SCALE);
TEST_ESP_OK(timer_get_alarm_value(TIMER_GROUP_0, TIMER_0, &alarm_val[0]));
TEST_ESP_OK(timer_get_alarm_value(TIMER_GROUP_0, TIMER_1, &alarm_val[1]));
TEST_ESP_OK(timer_get_alarm_value(TIMER_GROUP_1, TIMER_0, &alarm_val[2]));
TEST_ESP_OK(timer_get_alarm_value(TIMER_GROUP_1, TIMER_1, &alarm_val[3]));
for (i = 0; i < 4; i++) {
TEST_ASSERT_EQUAL_UINT32(3 * TIMER_SCALE, (uint32_t)alarm_val[i]);
}
// set interrupt read alarm value
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_1, 2.4);
timer_isr_check(TIMER_GROUP_0, TIMER_1, TIMER_AUTORELOAD_DIS, 2.4 * TIMER_SCALE);
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_0, 1.4);
timer_isr_check(TIMER_GROUP_1, TIMER_0, TIMER_AUTORELOAD_DIS, 1.4 * TIMER_SCALE);
all_timer_deinit();
}
/**
* auto reload case:
* 1. no reload
* 2. auto reload
*/
TEST_CASE("Timer auto reload", "[hw_timer]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL
};
all_timer_init(&config, true);
all_timer_isr_reg();
// test disable auto_reload
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_0, 1.14);
timer_isr_check(TIMER_GROUP_0, TIMER_0, TIMER_AUTORELOAD_DIS, 1.14 * TIMER_SCALE);
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_1, 1.14);
timer_isr_check(TIMER_GROUP_1, TIMER_1, TIMER_AUTORELOAD_DIS, 1.14 * TIMER_SCALE);
//test enable auto_reload
TEST_ESP_OK(timer_set_auto_reload(TIMER_GROUP_0, TIMER_1, TIMER_AUTORELOAD_EN));
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_1, 1.4);
timer_isr_check(TIMER_GROUP_0, TIMER_1, TIMER_AUTORELOAD_EN, 0);
TEST_ESP_OK(timer_set_auto_reload(TIMER_GROUP_1, TIMER_0, TIMER_AUTORELOAD_EN));
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_0, 1.4);
timer_isr_check(TIMER_GROUP_1, TIMER_0, TIMER_AUTORELOAD_EN, 0);
all_timer_deinit();
}
/**
* timer_enable_intr case:
* 1. enable timer_intr
* 2. disable timer_intr
*/
TEST_CASE("Timer enable timer interrupt", "[hw_timer]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_DIS,
.counter_dir = TIMER_COUNT_UP,
.auto_reload = TIMER_AUTORELOAD_DIS,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL
};
all_timer_init(&config, true);
all_timer_pause();
all_timer_set_alarm_value(1.2 * TIMER_SCALE);
all_timer_set_counter_value(0);
all_timer_isr_reg();
timer_intr_enable_disable_test(TIMER_GROUP_0, TIMER_0, 1.2 * TIMER_SCALE);
timer_intr_enable_disable_test(TIMER_GROUP_1, TIMER_1, 1.2 * TIMER_SCALE);
// enable interrupt of tg1_timer1 again
alarm_flag = false;
TEST_ESP_OK(timer_pause(TIMER_GROUP_1, TIMER_1));
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_1, TIMER_1, 0));
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_1, TIMER_1, TIMER_ALARM_EN));
TEST_ESP_OK(timer_enable_intr(TIMER_GROUP_1, TIMER_1));
TEST_ESP_OK(timer_start(TIMER_GROUP_1, TIMER_1));
timer_isr_check(TIMER_GROUP_1, TIMER_1, TIMER_AUTORELOAD_DIS, 1.2 * TIMER_SCALE);
TEST_ASSERT_EQUAL(true, alarm_flag);
all_timer_deinit();
}
/**
* enable timer group case:
* 1. enable timer group
* 2. disable timer group
*/
TEST_CASE("Timer enable timer group interrupt", "[hw_timer][ignore]")
{
alarm_flag = false;
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL
};
uint64_t set_timer_val = 0x0;
all_timer_init(&config, true);
all_timer_pause();
all_timer_set_counter_value(set_timer_val);
all_timer_set_alarm_value(1.2 * TIMER_SCALE);
// enable interrupt of tg0_timer0
TEST_ESP_OK(timer_group_intr_enable(TIMER_GROUP_0, TIMER_INTR_T0));
TEST_ESP_OK(timer_isr_register(TIMER_GROUP_0, TIMER_0, test_timer_group_isr,
GET_TIMER_INFO(TIMER_GROUP_0, TIMER_0), ESP_INTR_FLAG_LOWMED, NULL));
TEST_ESP_OK(timer_start(TIMER_GROUP_0, TIMER_0));
timer_isr_check(TIMER_GROUP_0, TIMER_0, TIMER_AUTORELOAD_DIS, 1.2 * TIMER_SCALE);
TEST_ASSERT_EQUAL(true, alarm_flag);
// disable interrupt of tg0_timer0
alarm_flag = false;
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_0, TIMER_0, set_timer_val));
TEST_ESP_OK(timer_group_intr_disable(TIMER_GROUP_0, TIMER_INTR_T0));
TEST_ESP_OK(timer_start(TIMER_GROUP_0, TIMER_0));
vTaskDelay(2000 / portTICK_PERIOD_MS);
TEST_ASSERT_EQUAL(false, alarm_flag);
}
/**
* isr_register case:
* Cycle register 15 times, compare the heap size to ensure no memory leaks
*/
TEST_CASE("Timer interrupt register", "[hw_timer][leaks=200]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_DIS,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL
};
for (int i = 0; i < 15; i++) {
all_timer_init(&config, true);
timer_isr_handle_t timer_isr_handle[TIMER_GROUP_MAX * TIMER_MAX];
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(timer_isr_register(tg_idx, timer_idx, test_timer_group_isr,
GET_TIMER_INFO(tg_idx, timer_idx), ESP_INTR_FLAG_LOWMED, &timer_isr_handle[tg_idx * TIMER_GROUP_MAX + timer_idx]));
}
}
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_0, TIMER_0, TIMER_ALARM_EN));
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_0, 0.54);
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_1, TIMER_1, TIMER_ALARM_EN));
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_1, 0.34);
TEST_ESP_OK(timer_set_auto_reload(TIMER_GROUP_0, TIMER_1, TIMER_AUTORELOAD_EN));
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_0, TIMER_1, TIMER_ALARM_EN));
timer_intr_enable_and_start(TIMER_GROUP_0, TIMER_1, 0.4);
TEST_ESP_OK(timer_set_auto_reload(TIMER_GROUP_1, TIMER_0, TIMER_AUTORELOAD_EN));
TEST_ESP_OK(timer_set_alarm(TIMER_GROUP_1, TIMER_0, TIMER_ALARM_EN));
timer_intr_enable_and_start(TIMER_GROUP_1, TIMER_0, 0.6);
vTaskDelay(1000 / portTICK_PERIOD_MS);
// ISR hanlde function should be free before next ISR register.
for (uint32_t tg_idx=0; tg_idx<TIMER_GROUP_MAX; tg_idx++) {
for (uint32_t timer_idx=0; timer_idx<TIMER_MAX; timer_idx++) {
TEST_ESP_OK(esp_intr_free(timer_isr_handle[tg_idx * TIMER_GROUP_MAX + timer_idx]));
}
}
all_timer_deinit();
}
}
#ifdef TIMER_GROUP_SUPPORTS_XTAL_CLOCK
/**
* Timer clock source:
* 1. configure clock source as APB clock, and enable timer interrupt
* 2. configure clock source as XTAL clock, adn enable timer interrupt
*/
TEST_CASE("Timer clock source", "[hw_timer]")
{
// configure clock source as APB clock
uint32_t timer_scale = rtc_clk_apb_freq_get() / TIMER_DIVIDER;
timer_config_t config = {
.alarm_en = TIMER_ALARM_DIS,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL,
.clk_src = TIMER_SRC_CLK_APB
};
all_timer_init(&config, true);
all_timer_pause();
all_timer_set_alarm_value(1.2 * timer_scale);
all_timer_set_counter_value(0);
all_timer_isr_reg();
timer_intr_enable_disable_test(TIMER_GROUP_0, TIMER_0, 1.2 * timer_scale);
timer_intr_enable_disable_test(TIMER_GROUP_1, TIMER_1, 1.2 * timer_scale );
// configure clock source as XTAL clock
all_timer_pause();
timer_scale = rtc_clk_xtal_freq_get() * 1000000 / TIMER_DIVIDER;
config.clk_src = TIMER_SRC_CLK_XTAL;
all_timer_init(&config, true);
all_timer_set_alarm_value(1.2 * timer_scale);
timer_intr_enable_disable_test(TIMER_GROUP_0, TIMER_0, 1.2 * timer_scale);
timer_intr_enable_disable_test(TIMER_GROUP_1, TIMER_1, 1.2 * timer_scale );
all_timer_deinit();
}
#endif
/**
* Timer ISR callback test
*/
TEST_CASE("Timer ISR callback", "[hw_timer]")
{
alarm_flag = false;
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_DIS,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL,
};
uint32_t timer_scale = rtc_clk_apb_freq_get() / TIMER_DIVIDER;
uint64_t alarm_cnt_val = 1.2 * timer_scale;
uint64_t set_timer_val = 0x0;
all_timer_init(&config, true);
all_timer_pause();
all_timer_set_alarm_value(alarm_cnt_val);
all_timer_set_counter_value(set_timer_val);
// add isr callback for tg0_timer1
TEST_ESP_OK(timer_isr_callback_add(TIMER_GROUP_0, TIMER_1, test_timer_group_isr_cb,
GET_TIMER_INFO(TIMER_GROUP_0, TIMER_1), ESP_INTR_FLAG_LOWMED));
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_0, TIMER_1, set_timer_val));
TEST_ESP_OK(timer_start(TIMER_GROUP_0, TIMER_1));
timer_isr_check(TIMER_GROUP_0, TIMER_1, TIMER_AUTORELOAD_DIS, alarm_cnt_val);
TEST_ASSERT_EQUAL(true, alarm_flag);
// remove isr callback for tg0_timer1
TEST_ESP_OK(timer_pause(TIMER_GROUP_0, TIMER_1));
TEST_ESP_OK(timer_isr_callback_remove(TIMER_GROUP_0, TIMER_1));
alarm_flag = false;
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_0, TIMER_1, set_timer_val));
TEST_ESP_OK(timer_start(TIMER_GROUP_0, TIMER_1));
vTaskDelay(2000 / portTICK_PERIOD_MS);
TEST_ASSERT_EQUAL(false, alarm_flag);
// add isr callback for tg1_timer0
TEST_ESP_OK(timer_pause(TIMER_GROUP_1, TIMER_0));
TEST_ESP_OK(timer_isr_callback_add(TIMER_GROUP_1, TIMER_0, test_timer_group_isr_cb,
GET_TIMER_INFO(TIMER_GROUP_1, TIMER_0), ESP_INTR_FLAG_LOWMED));
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_1, TIMER_0, set_timer_val));
TEST_ESP_OK(timer_start(TIMER_GROUP_1, TIMER_0));
timer_isr_check(TIMER_GROUP_1, TIMER_0, TIMER_AUTORELOAD_DIS, alarm_cnt_val);
TEST_ASSERT_EQUAL(true, alarm_flag);
// remove isr callback for tg1_timer0
TEST_ESP_OK(timer_pause(TIMER_GROUP_1, TIMER_0));
TEST_ESP_OK(timer_isr_callback_remove(TIMER_GROUP_1, TIMER_0));
alarm_flag = false;
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_1, TIMER_0, set_timer_val));
TEST_ESP_OK(timer_start(TIMER_GROUP_1, TIMER_0));
vTaskDelay(2000 / portTICK_PERIOD_MS);
TEST_ASSERT_EQUAL(false, alarm_flag);
all_timer_deinit();
}
/**
* Timer memory test
*/
TEST_CASE("Timer memory test", "[hw_timer][leaks=100]")
{
timer_config_t config = {
.alarm_en = TIMER_ALARM_EN,
.auto_reload = TIMER_AUTORELOAD_EN,
.counter_dir = TIMER_COUNT_UP,
.divider = TIMER_DIVIDER,
.counter_en = TIMER_PAUSE,
.intr_type = TIMER_INTR_LEVEL,
};
for(uint32_t i=0; i<100; i++) {
all_timer_init(&config, true);
all_timer_deinit();
}
}
// The following test cases are used to check if the timer_group fix works.
// Some applications use a software reset, at the reset time, timer_group happens to generate an interrupt.
// but software reset does not clear interrupt status, this is not safe for application when enable the interrupt of timer_group.
// This case will check under this fix, whether the interrupt status is cleared after timer_group initialization.
static void timer_group_test_init(void)
{
static const uint32_t time_ms = 100; //Alarm value 100ms.
static const uint16_t timer_div = 10; //Timer prescaler
static const uint32_t ste_val = time_ms * (TIMER_BASE_CLK / timer_div / 1000);
timer_config_t config = {
.divider = timer_div,
.counter_dir = TIMER_COUNT_UP,
.counter_en = TIMER_PAUSE,
.alarm_en = TIMER_ALARM_EN,
.intr_type = TIMER_INTR_LEVEL,
.auto_reload = TIMER_AUTORELOAD_EN,
};
TEST_ESP_OK(timer_init(TIMER_GROUP_0, TIMER_0, &config));
TEST_ESP_OK(timer_set_counter_value(TIMER_GROUP_0, TIMER_0, 0x00000000ULL));
TEST_ESP_OK(timer_set_alarm_value(TIMER_GROUP_0, TIMER_0, ste_val));
//Now the timer is ready.
//We only need to check the interrupt status and don't have to register a interrupt routine.
}
static void timer_group_test_first_stage(void)
{
static uint8_t loop_cnt = 0;
timer_group_test_init();
//Start timer
TEST_ESP_OK(timer_enable_intr(TIMER_GROUP_0, TIMER_0));
TEST_ESP_OK(timer_start(TIMER_GROUP_0, TIMER_0));
//Waiting for timer_group to generate an interrupt
while( !(timer_group_get_intr_status_in_isr(TIMER_GROUP_0) & TIMER_INTR_T0) &&
loop_cnt++ < 100) {
vTaskDelay(200);
}
TEST_ASSERT_EQUAL(TIMER_INTR_T0, timer_group_get_intr_status_in_isr(TIMER_GROUP_0) & TIMER_INTR_T0);
esp_restart();
}
static void timer_group_test_second_stage(void)
{
TEST_ASSERT_EQUAL(ESP_RST_SW, esp_reset_reason());
timer_group_test_init();
//After the timer_group is initialized, TIMERG0.int_raw.t0 should be cleared.
TEST_ASSERT_EQUAL(0, timer_group_get_intr_status_in_isr(TIMER_GROUP_0) & TIMER_INTR_T0);
}
TEST_CASE_MULTIPLE_STAGES("timer_group software reset test",
"[intr_status][intr_status = 0]",
timer_group_test_first_stage,
timer_group_test_second_stage);
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