esp-idf/components/mbedtls/test/test_apb_dport_access.c

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/* Implementation of utility functions to verify
unit tests aren't performing SMP-unsafe DPORT reads.
*/
#include "unity.h"
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "soc/uart_reg.h"
#include "test_apb_dport_access.h"
#ifndef CONFIG_FREERTOS_UNICORE
static void apb_access_loop_task(void *ignore);
static volatile bool apb_access_corrupt;
static TaskHandle_t apb_task_handle;
void start_apb_access_loop()
{
apb_access_corrupt = false;
xTaskCreatePinnedToCore(apb_access_loop_task, "accessAPB", 2048, NULL,
UNITY_FREERTOS_PRIORITY - 1,
&apb_task_handle, !UNITY_FREERTOS_CPU);
}
void verify_apb_access_loop()
{
vTaskDelete(apb_task_handle);
apb_task_handle = NULL;
TEST_ASSERT_FALSE(apb_access_corrupt);
printf("Verified no APB corruption from operations\n");
}
static void apb_access_loop_task(void *ignore)
{
uint32_t initial = REG_READ(UART_DATE_REG(0));
while(1) {
if (REG_READ(UART_DATE_REG(0)) != initial) {
apb_access_corrupt = true;
}
}
}
#else /*CONFIG_FREERTOS_UNICORE */
void start_apb_access_loop()
{
}
void verify_apb_access_loop()
{
}
#endif