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-// The lines below allow to skip test in configuration other then
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-// single_core which is required for this test to check placement in RTC_FAST memory
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-#include "sdkconfig.h"
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-
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-#ifdef CONFIG_ESP32_RTCDATA_IN_FAST_MEM
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-
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-#include "unity.h"
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-#include "esp_system.h"
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-#include "rom/rtc.h" // for rtc defines
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-#include "rom/uart.h" // for uart_tx_wait_idle()
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-#include "esp_log.h" // for log write functionality
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-#include "driver/rtc_io.h" // for gpio configuration
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-#include "esp_sleep.h" // include sleep related functionality
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-#include "soc/soc.h" // include access to soc macros
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-#include "soc/timer_group_reg.h" // for watchdog register defines
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-#include "soc/rtc_cntl_reg.h" // for rtc cntl register defines
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-#include "freertos/FreeRTOS.h" // for xPortGetCoreID
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-
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-// Test notes:
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-// This test case sequence checks behavior of placement .rtc_data and .rtc_rodata sections
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-// into RTC_FAST memory. The Kconfig option CONFIG_ESP32_RTCDATA_IN_FAST_MEM
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-// is used to configure this behavior. The RTC_DATA_ATTR, RTC_RODATA_ATTR attributes
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-// can be used to place data into this area. If option is not set the .rtc_data
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-// and .rtc_rodata are placed in slow memory segment for compatibility.
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-// The only PRO_CPU can access the RTC_FAST memory, so the option CONFIG_FREERTOS_UNICORE
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-// should be enabled to place data into RTC_FAST memory segment.
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-
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-#define ESP_EXT0_WAKEUP_LEVEL_LOW 0
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-#define ESP_EXT0_WAKEUP_LEVEL_HIGH 1
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-
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-#define RTC_DATA_PATTERN 0xAAAAAAAA
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-#define RTC_RODATA_PATTERN 0x55555555
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-#define RTC_FAST_PATTERN 0xDDDDDDDD
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-#define RTC_SLOW_PATTERN 0x99999999
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-#define WAKE_STUB_PATTERN 0x77777777
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-
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-#ifdef CONFIG_ESP32_RTCDATA_IN_FAST_MEM
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-#define CHECK_RTC_FAST_OPTION_ENABLED 1
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-#else
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-#define CHECK_RTC_FAST_OPTION_ENABLED 0
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-#endif
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-
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-static RTC_DATA_ATTR uint32_t rtc_data = RTC_DATA_PATTERN;
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-static RTC_RODATA_ATTR uint32_t rtc_rodata = RTC_RODATA_PATTERN;
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-static RTC_FAST_ATTR uint32_t rtc_force_fast = RTC_FAST_PATTERN;
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-static RTC_SLOW_ATTR uint32_t rtc_force_slow = RTC_SLOW_PATTERN;
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-
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-extern int _rtc_data_start;
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-extern int _rtc_data_end;
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-extern int _rtc_force_fast_start;
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-extern int _rtc_force_fast_end;
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-extern int _rtc_force_slow_start;
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-extern int _rtc_force_slow_end;
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-
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-// This points to the values in RTC memory
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-static uint32_t *rtc_data_val_addr = (uint32_t*)&rtc_data;
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-static uint32_t *rtc_rodata_val_addr = (uint32_t*)&rtc_rodata;
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-static uint32_t *rtc_fast_val_addr = (uint32_t*)&rtc_force_fast;
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-static uint32_t *rtc_slow_val_addr = (uint32_t*)&rtc_force_slow;
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-
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-static const char* tag = "rtc_data_fast_UnitTestMain";
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-
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-static void RTC_IRAM_ATTR wake_stub(void);
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-
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-static void RTC_IRAM_ATTR wake_stub_dummy(void)
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-{
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- rtc_data = WAKE_STUB_PATTERN;
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- set_rtc_memory_crc(); // update rtc memory CRC
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-}
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-
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-static esp_err_t check_data_placement(uint32_t *value_address,
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- uint32_t *seg_start, uint32_t *seg_end)
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-{
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- esp_err_t result = ESP_FAIL;
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- if (((uint32_t)value_address <= (uint32_t)seg_end)
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- && ((uint32_t)value_address >= (uint32_t)seg_start)){
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- result = ESP_OK;
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- }
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- return result;
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-}
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-
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-static esp_err_t check_wake_stub_status(void)
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-{
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- esp_err_t result = ESP_FAIL;
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-
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- uint32_t entry_addr = REG_READ(RTC_ENTRY_ADDR_REG);
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-
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- if (entry_addr == (uint32_t)&wake_stub_dummy) {
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- result = ESP_OK;
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- } else if (entry_addr == (uint32_t)&wake_stub) {
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- result = ESP_ERR_INVALID_STATE;
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- } else {
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- result = ESP_FAIL;
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- }
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-
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- return result;
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-}
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-
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-static void RTC_IRAM_ATTR wake_stub(void)
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-{
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- esp_default_wake_deep_sleep();
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-
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- // Set the pointer of the new wake stub function.
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- // It will be checked in test to make sure the wake stub entered
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- REG_WRITE(RTC_ENTRY_ADDR_REG, (uint32_t)&wake_stub_dummy);
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-
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- // Set this value to check it in test later
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- rtc_data = WAKE_STUB_PATTERN;
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- set_rtc_memory_crc(); // update rtc memory CRC
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-}
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-
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-static void setup_deep_sleep(void)
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-{
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- // Set wake stub function to check its behavior
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- // This function sets checksum of RTC fast memory appropriately
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- esp_set_deep_sleep_wake_stub(&wake_stub);
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-
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- // Setup ext0 configuration to wake up immediately
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- ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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- ESP_ERROR_CHECK(gpio_pullup_en(GPIO_NUM_13));
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- ESP_ERROR_CHECK(gpio_pulldown_dis(GPIO_NUM_13));
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- ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, ESP_EXT0_WAKEUP_LEVEL_HIGH));
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- uart_tx_wait_idle(0);
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- esp_deep_sleep_start();
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-}
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-
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-// The lines below are required to suppress GCC warnings about casting of function pointers
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-// in unity macro expansion. These warnings may be treated as errors during automated test.
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-#pragma GCC diagnostic push // required for GCC
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-#pragma GCC diagnostic ignored "-Wdiscarded-qualifiers"
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-static void reset_reason_power_on(void)
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-{
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- printf("This test case verifies behavior of RTC_DATA variables after reset. \n");
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- RESET_REASON reason = rtc_get_reset_reason(0);
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- TEST_ASSERT(reason == POWERON_RESET || reason == RTCWDT_RTC_RESET);
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-
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- ESP_LOGI(tag, "Reset reason=(%d)", (uint16_t)reason);
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-
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- printf("rtc_data_val = (0x%X), rtc_rodata_val = (0x%X), rtc_fast_val = (0x%X), rtc_slow_val = (0x%X)\r\n",
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- (uint32_t)*rtc_data_val_addr, (uint32_t)*rtc_rodata_val_addr,
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- (uint32_t)*rtc_fast_val_addr, (uint32_t)*rtc_slow_val_addr);
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-
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- printf("This test case called by CPU%u\r\n", (uint16_t)xPortGetCoreID());
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-
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- TEST_ASSERT(CHECK_RTC_FAST_OPTION_ENABLED == 1);
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- printf("Check that values are placed in correct sections and then compare its values with patterns.\r\n");
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-
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- TEST_ASSERT(check_data_placement(rtc_fast_val_addr,
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- (uint32_t*)&_rtc_force_fast_start,
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- (uint32_t*)&_rtc_force_fast_end) == ESP_OK);
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-
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- TEST_ASSERT(check_data_placement(rtc_data_val_addr,
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- (uint32_t*)&_rtc_data_start,
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- (uint32_t*)&_rtc_data_end) == ESP_OK);
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-
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- TEST_ASSERT(check_data_placement(rtc_rodata_val_addr,
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- (uint32_t*)&_rtc_data_start,
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- (uint32_t*)&_rtc_data_end) == ESP_OK);
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-
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- printf("Values RTC_DATA_ATTR, RTC_FAST_ATTR are placed in section (0x%x - 0x%x).\r\n",
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- (uint32_t)&_rtc_data_start, (uint32_t)&_rtc_data_end);
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-
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- TEST_ASSERT(check_data_placement(rtc_slow_val_addr,
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- (uint32_t*)&_rtc_force_slow_start,
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- (uint32_t*)&_rtc_force_slow_end) == ESP_OK);
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-
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- printf("The RTC_SLOW values are placed in slow memory (0x%X - 0x%X).\r\n",
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- (uint32_t)&_rtc_force_slow_start, (uint32_t)&_rtc_force_slow_end);
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-
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- TEST_ASSERT(RTC_RODATA_PATTERN == *rtc_rodata_val_addr);
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- TEST_ASSERT(RTC_DATA_PATTERN == *rtc_data_val_addr);
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- TEST_ASSERT(RTC_FAST_PATTERN == *rtc_fast_val_addr);
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-
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- TEST_ASSERT(RTC_SLOW_PATTERN == *rtc_slow_val_addr);
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-
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- printf("The values correspond to its patterns.\r\n");
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- printf("Go to deep sleep to check DEEP_SLEEP_RESET behavior. \r\n");
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- setup_deep_sleep();
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-}
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-
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-static void reset_reason_deep_sleep(void)
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-{
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- printf("This test case checks behavior of RTC_DATA variables after deep sleep reset. \r\n");
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- RESET_REASON reason = rtc_get_reset_reason(0);
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-
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- ESP_LOGI(tag, "Reset reason=(%d)", (uint16_t)reason);
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-
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- printf("rtc_data_val = (0x%X), rtc_rodata_val = (0x%X), rtc_fast_val = (0x%X), rtc_slow_val = (0x%X)\r\n",
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- (uint32_t)*rtc_data_val_addr, (uint32_t)*rtc_rodata_val_addr,
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- (uint32_t)*rtc_fast_val_addr, (uint32_t)*rtc_slow_val_addr);
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-
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- TEST_ASSERT(reason == DEEPSLEEP_RESET);
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-
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- if (CHECK_RTC_FAST_OPTION_ENABLED == 1) {
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- printf("The CONFIG_ESP32_RTCDATA_IN_FAST_MEM is active means placement of RTC_DATA in fast segment.\r\n");
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- } else {
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- printf("The CONFIG_ESP32_RTCDATA_IN_FAST_MEM is not set. Please set this option\r\n");
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- printf("in menuconfig to check .rtc.data placement in RTC fast memory.\r\n");
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- }
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-
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- TEST_ASSERT(CHECK_RTC_FAST_OPTION_ENABLED == 1);
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-
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- // Check if deep sleep wake stub has been entered
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- // this means CRC was correct
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- if (check_wake_stub_status() == ESP_OK) {
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- printf("The wake stub has been executed means CRC was correct.\r\n");
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- } else {
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- printf("The wake stub is not executed.\r\n");
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- }
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-
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- TEST_ASSERT(check_wake_stub_status() == ESP_OK);
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-
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- // If the RTC CRC is incorrect the function return NULL
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- if (esp_get_deep_sleep_wake_stub() == NULL){
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- printf("The wake stub has changed the value of rtc_data as expected.\r\n");
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- } else {
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- printf("The rtc_data value is not changed that is incorrect. \r\n");
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- }
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-
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- TEST_ASSERT(esp_get_deep_sleep_wake_stub() == NULL);
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-
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- TEST_ASSERT(check_data_placement(rtc_data_val_addr,
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- (uint32_t*)&_rtc_data_start,
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- (uint32_t*)&_rtc_data_end) == ESP_OK);
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-
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- TEST_ASSERT(check_data_placement(rtc_rodata_val_addr,
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- (uint32_t*)&_rtc_data_start,
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- (uint32_t*)&_rtc_data_end) == ESP_OK);
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-
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- TEST_ASSERT(check_data_placement(rtc_fast_val_addr,
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- (uint32_t*)&_rtc_force_fast_start,
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- (uint32_t*)&_rtc_force_fast_end) == ESP_OK);
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-
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- printf("Values RTC_DATA_ATTR, RTC_FAST_ATTR are placed in RTC fast segment (0x%x - 0x%x).\r\n",
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- (uint32_t)&_rtc_data_start, (uint32_t)&_rtc_data_end);
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-
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- TEST_ASSERT(check_data_placement(rtc_slow_val_addr,
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- (uint32_t*)&_rtc_force_slow_start,
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- (uint32_t*)&_rtc_force_slow_end) == ESP_OK);
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-
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- printf("The RTC_SLOW values are placed in slow memory (0x%X - 0x%X).\r\n",
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- (uint32_t)&_rtc_force_slow_start, (uint32_t)&_rtc_force_slow_end);
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-
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- TEST_ASSERT(RTC_DATA_PATTERN == *rtc_data_val_addr);
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- TEST_ASSERT(RTC_RODATA_PATTERN == *rtc_rodata_val_addr);
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- TEST_ASSERT(RTC_FAST_PATTERN == *rtc_fast_val_addr);
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-
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- TEST_ASSERT(RTC_SLOW_PATTERN == *rtc_slow_val_addr);
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-
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- printf("Values correspond to its patterns.\r\n");
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- printf("The test cases are done.. \r\n");
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-}
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-
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-// The multiple stages test case to check values after certain reset reason
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-TEST_CASE_MULTIPLE_STAGES("RTC_DATA attributes behavior", \
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- "[restart][reset=DEEPSLEEP_RESET]",
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- reset_reason_power_on, reset_reason_deep_sleep);
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-#pragma GCC diagnostic pop // require GCC
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-
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-#endif // CONFIG_ESP32_RTCDATA_IN_FAST_MEM
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Ivan Grokhotkov