OVMS3-idf/components/esp32/test/test_dport.c

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#include <esp_types.h>
#include <stdio.h>
#include <stdlib.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "unity.h"
#include "soc/uart_reg.h"
#include "soc/dport_reg.h"
static volatile bool exit_flag;
static bool dport_test_result;
static bool apb_test_result;
static void accessDPORT(void *pvParameters)
{
xSemaphoreHandle *sema = (xSemaphoreHandle *) pvParameters;
uint32_t dport_date = DPORT_REG_READ(DPORT_DATE_REG);
dport_test_result = true;
// although exit flag is set in another task, checking (exit_flag == false) is safe
while (exit_flag == false) {
if (dport_date != DPORT_REG_READ(DPORT_DATE_REG)) {
dport_test_result = false;
break;
}
}
xSemaphoreGive(*sema);
vTaskDelete(NULL);
}
static void accessAPB(void *pvParameters)
{
xSemaphoreHandle *sema = (xSemaphoreHandle *) pvParameters;
uint32_t uart_date = REG_READ(UART_DATE_REG(0));
apb_test_result = true;
// although exit flag is set in another task, checking (exit_flag == false) is safe
while (exit_flag == false) {
if (uart_date != REG_READ(UART_DATE_REG(0))) {
apb_test_result = false;
break;
}
}
xSemaphoreGive(*sema);
vTaskDelete(NULL);
}
TEST_CASE("access DPORT and APB at same time", "[esp32]")
{
int i;
TaskHandle_t th[2];
xSemaphoreHandle exit_sema[2];
for (i=0; i<2; i++) {
exit_sema[i] = xSemaphoreCreateMutex();
xSemaphoreTake(exit_sema[i], portMAX_DELAY);
}
exit_flag = false;
#ifndef CONFIG_FREERTOS_UNICORE
printf("assign task accessing DPORT to core 0 and task accessing APB to core 1\n");
xTaskCreatePinnedToCore(accessDPORT , "accessDPORT" , 2048, &exit_sema[0], UNITY_FREERTOS_PRIORITY - 1, &th[0], 0);
xTaskCreatePinnedToCore(accessAPB , "accessAPB" , 2048, &exit_sema[1], UNITY_FREERTOS_PRIORITY - 1, &th[1], 1);
#else
printf("assign task accessing DPORT and accessing APB\n");
xTaskCreate(accessDPORT , "accessDPORT" , 2048, &exit_sema[0], UNITY_FREERTOS_PRIORITY - 1, &th[0]);
xTaskCreate(accessAPB , "accessAPB" , 2048, &exit_sema[1], UNITY_FREERTOS_PRIORITY - 1, &th[1]);
#endif
printf("start wait for 10 seconds\n");
vTaskDelay(10000 / portTICK_PERIOD_MS);
// set exit flag to let thread exit
exit_flag = true;
for (i=0; i<2; i++) {
xSemaphoreTake(exit_sema[i], portMAX_DELAY);
vSemaphoreDelete(exit_sema[i]);
}
TEST_ASSERT(dport_test_result == true && apb_test_result == true);
}