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esp-idf/components/driver/test/test_adc2_with_wifi.c

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/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/*
Tests for the adc2 device driver
*/
#include "esp_system.h"
#include "unity.h"
#include "esp_system.h"
#include "esp_event.h"
#include "esp_wifi.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "test_utils.h"
#include "driver/gpio.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#define CONFIG_ADC_SUPPRESS_DEPRECATE_WARN 1
#include "driver/adc.h"
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32C2)
static const char* TAG = "test_adc2";
#define DEFAULT_SSID "TEST_SSID"
#define DEFAULT_PWD "TEST_PASS"
#if CONFIG_IDF_TARGET_ESP32
#define ADC2_CHAN1 ADC2_CHANNEL_9
#define ADC_WIDTH ADC_WIDTH_BIT_12
#define ADC_HIGH 4095
#define ADC_ERROR_THRES 20
#elif CONFIG_IDF_TARGET_ESP32S2
#define ADC2_CHAN1 ADC2_CHANNEL_7
#define ADC_WIDTH ADC_WIDTH_BIT_13
#define ADC_HIGH 8191
#define ADC_ERROR_THRES 100
#elif CONFIG_IDF_TARGET_ESP32C3
#define ADC2_CHAN1 ADC2_CHANNEL_0
#define ADC_WIDTH ADC_WIDTH_BIT_12
#define ADC_HIGH 4095
#define ADC_ERROR_THRES 100
#elif CONFIG_IDF_TARGET_ESP32S3
#define ADC2_CHAN1 ADC2_CHANNEL_0
#define ADC_WIDTH ADC_WIDTH_BIT_12
#define ADC_HIGH 4095
#define ADC_ERROR_THRES 100
#endif
#define ADC_LOW 0
#define TEST_NUM 8
#define MINUS_UNTIL_ZERO(a, b) ( ((a) > (b)) ? ((a)-(b)): 0)
#define TIME_REMAIN(start, now, timeout) ((start) >= (now) ? MINUS_UNTIL_ZERO((timeout), (now)-(start)) : -1)
static void wifi_event_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
printf("ev_handle_called.\n");
switch(event_id) {
case WIFI_EVENT_STA_START:
ESP_LOGI(TAG, "WIFI_EVENT_STA_START");
//do not actually connect in test case
//;
break;
case WIFI_EVENT_STA_DISCONNECTED:
ESP_LOGI(TAG, "WIFI_EVENT_STA_DISCONNECTED");
TEST_ESP_OK(esp_wifi_connect());
break;
default:
break;
}
return ;
}
static void ip_event_handler(void* arg, esp_event_base_t event_base,
int32_t event_id, void* event_data)
{
ip_event_got_ip_t *event;
printf("ev_handle_called.\n");
switch(event_id) {
case IP_EVENT_STA_GOT_IP:
event = (ip_event_got_ip_t*)event_data;
ESP_LOGI(TAG, "IP_EVENT_STA_GOT_IP");
ESP_LOGI(TAG, "got ip:" IPSTR "\n", IP2STR(&event->ip_info.ip));
break;
default:
break;
}
return ;
}
static int event_init(void)
{
TEST_ESP_OK(esp_event_loop_create_default());
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, ESP_EVENT_ANY_ID, &ip_event_handler, NULL));
return ESP_OK;
}
static int event_deinit(void)
{
ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler));
ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, ESP_EVENT_ANY_ID, &ip_event_handler));
return ESP_OK;
}
TEST_CASE("adc2 work with wifi","[adc]")
{
test_case_uses_tcpip();
//---------------------------------WiFi init-----------------------------------//
printf("nvs init\n");
esp_err_t r = nvs_flash_init();
if (r == ESP_ERR_NVS_NO_FREE_PAGES || r == ESP_ERR_NVS_NEW_VERSION_FOUND) {
printf("no free pages or nvs version mismatch, erase..\n");
TEST_ESP_OK(nvs_flash_erase());
r = nvs_flash_init();
}
TEST_ESP_OK( r);
esp_netif_init();
event_init();
esp_netif_create_default_wifi_sta();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
/* Restrict the number of buffers to allocate to account for limited memory when running large number of tests */
cfg.static_rx_buf_num = 2;
cfg.static_tx_buf_num = 2;
TEST_ESP_OK(esp_wifi_init(&cfg));
wifi_config_t wifi_config = {
.sta = {
.ssid = DEFAULT_SSID,
.password = DEFAULT_PWD
},
};
TEST_ESP_OK(esp_wifi_set_mode(WIFI_MODE_STA));
TEST_ESP_OK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
//---------------------------------ADC init-----------------------------------//
int read_raw;
int target_value;
gpio_num_t test_adc_io;
bool test_list[TEST_NUM] ={1, 1, 0, 0, 1, 0, 1, 0};
adc2_pad_get_io_num(ADC2_CHAN1, &test_adc_io);
TEST_ESP_OK(adc2_config_channel_atten(ADC2_CHAN1, ADC_ATTEN_DB_0));
printf("test_adc_io is %d\n", test_adc_io);
//---------------------------------GPIO init-----------------------------------//
gpio_config_t gpio_cfg = {
.pin_bit_mask = BIT64(test_adc_io),
.mode = GPIO_MODE_OUTPUT,
//for powersave reasons, the GPIO should not be floating, select pullup
.pull_up_en = true,
.pull_down_en = false,
.intr_type = GPIO_INTR_DISABLE,
};
gpio_config(&gpio_cfg);
for (int i = 0; i < TEST_NUM; i++) {
TEST_ESP_OK(gpio_set_level(test_adc_io, test_list[i]));
target_value = test_list[i] ? ADC_HIGH : ADC_LOW;
/* ADC2 single read before WIFI start */
TEST_ESP_OK(adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw));
printf("Before WiFi starts, ADC read: %d (target_value: %d)\n", read_raw, target_value);
TEST_ASSERT_INT_WITHIN(ADC_ERROR_THRES, target_value, read_raw);
/* ADC2 single read when WIFI is on */
TEST_ESP_OK(esp_wifi_start());
#if CONFIG_IDF_TARGET_ESP32
TEST_ASSERT_EQUAL(adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw), ESP_ERR_TIMEOUT);
#elif SOC_ADC_ARBITER_SUPPORTED
esp_err_t ret;
int32_t start = xTaskGetTickCount();
int32_t now;
int32_t remain_wait_ms = 0;
int32_t timeout = pdMS_TO_TICKS(10);
do {
now = xTaskGetTickCount();
remain_wait_ms = pdTICKS_TO_MS(TIME_REMAIN(start, now, timeout));
ret = adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw);
if (ret == ESP_OK) {
printf("When WiFi is ON, ADC read: %d (target_value: %d)\n", read_raw, target_value);
TEST_ASSERT_INT_WITHIN(ADC_ERROR_THRES, target_value, read_raw);
break;
} else if (ret == ESP_ERR_INVALID_STATE) {
continue;
} else {
TEST_ESP_OK(ret);
}
} while (remain_wait_ms);
#endif
/* ADC2 single read after WIFI is off */
TEST_ESP_OK(esp_wifi_stop());
TEST_ESP_OK(adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw));
printf("After WiFi is OFF, ADC read: %d (target_value: %d)\n", read_raw, target_value);
TEST_ASSERT_INT_WITHIN(ADC_ERROR_THRES, target_value, read_raw);
}
TEST_ESP_OK(esp_wifi_deinit());
event_deinit();
nvs_flash_deinit();
TEST_IGNORE_MESSAGE("this test case is ignored due to the critical memory leak of esp_netif and event_loop.");
}
#endif //#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32S3)
#ifdef CONFIG_IDF_TARGET_ESP32
#include "driver/adc.h"
#define ADC1_CHANNEL_4_IO (32)
#define ADC_SAMPLE_RATE (36000)
#define ADC_TEST_CHANNEL ADC1_CHANNEL_4
static void adc_dma_init(void)
{
adc_digi_init_config_t adc_dma_config = {
.max_store_buf_size = 1024,
.conv_num_each_intr = 256,
.adc1_chan_mask = 1 << ADC_TEST_CHANNEL,
.adc2_chan_mask = 0,
};
TEST_ESP_OK(adc_digi_initialize(&adc_dma_config));
adc_digi_pattern_config_t adc_pattern = {
.atten = ADC_ATTEN_DB_0,
.channel = ADC_TEST_CHANNEL,
.unit = 0,
.bit_width = SOC_ADC_DIGI_MAX_BITWIDTH
};
adc_digi_configuration_t dig_cfg = {
.conv_limit_en = 1,
.conv_limit_num = 250,
.sample_freq_hz = ADC_SAMPLE_RATE,
.conv_mode = ADC_CONV_SINGLE_UNIT_1,
.format = ADC_DIGI_OUTPUT_FORMAT_TYPE1,
.pattern_num = 1,
.adc_pattern = &adc_pattern
};
TEST_ESP_OK(adc_digi_controller_configure(&dig_cfg));
TEST_ESP_OK(adc_digi_start());
}
static void continuous_adc_test(void)
{
uint16_t *adcReadBuffer = (uint16_t *)calloc(1024, sizeof(uint16_t));
uint32_t bytesRead;
for (int loop = 0; loop < 10; loop++) {
for (int level = 0; level <= 1; level++) {
if (level == 0) {
gpio_set_pull_mode(ADC1_CHANNEL_4_IO, GPIO_PULLDOWN_ONLY);
} else {
gpio_set_pull_mode(ADC1_CHANNEL_4_IO, GPIO_PULLUP_ONLY);
}
vTaskDelay(200 / portTICK_PERIOD_MS);
// read data from adc, will block until buffer is full
adc_digi_read_bytes((uint8_t *)adcReadBuffer, 1024 * sizeof(uint16_t), &bytesRead, ADC_MAX_DELAY);
// calc average
int64_t adcSumValue = 0;
for (size_t i = 0; i < 1024; i++) {
adcSumValue += adcReadBuffer[i] & 0xfff;
}
int adcAvgValue = adcSumValue / 1024;
printf("adc average val: %d\n", adcAvgValue);
if (level == 0) {
TEST_ASSERT_LESS_THAN(100, adcAvgValue);
} else {
TEST_ASSERT_GREATER_THAN(4000, adcAvgValue);
}
}
}
free(adcReadBuffer);
}
static void adc_deinit(void)
{
adc_digi_stop();
TEST_ESP_OK(adc_digi_deinitialize());
}
TEST_CASE("adc1 and i2s work with wifi","[adc][ignore]")
{
adc_dma_init();
//init wifi
printf("nvs init\n");
esp_err_t r = nvs_flash_init();
if (r == ESP_ERR_NVS_NO_FREE_PAGES || r == ESP_ERR_NVS_NEW_VERSION_FOUND) {
printf("no free pages or nvs version mismatch, erase..\n");
TEST_ESP_OK(nvs_flash_erase());
r = nvs_flash_init();
}
TEST_ESP_OK(r);
esp_netif_init();
event_init();
esp_netif_create_default_wifi_sta();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
TEST_ESP_OK(esp_wifi_init(&cfg));
wifi_config_t wifi_config = {
.sta = {
.ssid = DEFAULT_SSID,
.password = DEFAULT_PWD
},
};
TEST_ESP_OK(esp_wifi_set_mode(WIFI_MODE_STA));
TEST_ESP_OK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
continuous_adc_test();
//now start wifi
printf("wifi start...\n");
TEST_ESP_OK(esp_wifi_start());
//test reading during wifi on
continuous_adc_test();
//wifi stop again
printf("wifi stop...\n");
TEST_ESP_OK( esp_wifi_stop() );
TEST_ESP_OK(esp_wifi_deinit());
event_deinit();
nvs_flash_deinit();
continuous_adc_test();
adc_deinit();
printf("test passed...\n");
TEST_IGNORE_MESSAGE("this test case is ignored due to the critical memory leak of esp_netif and event_loop.");
}
#endif
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