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esp-idf/components/driver/test/test_adc2_with_wifi.c
Armando 4dc0d6b2fe adc: support adc dma driver on all chips
2021-12-16 00:19:15 +00:00

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/*
* SPDX-FileCopyrightText: 2021 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 "driver/adc.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32S3, ESP8684)
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();
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_0db));
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/i2s.h"
#define ADC1_CHANNEL_4_IO (32)
#define SAMPLE_RATE (36000)
#define SAMPLE_BITS (16)
static void i2s_adc_init(void)
{
i2s_config_t i2s_config = {
.mode = I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_ADC_BUILT_IN,
.sample_rate = SAMPLE_RATE,
.bits_per_sample = SAMPLE_BITS,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.intr_alloc_flags = 0,
.dma_desc_num = 2,
.dma_frame_num = 1024,
.use_apll = 0,
};
// install and start I2S driver
i2s_driver_install(I2S_NUM_0, &i2s_config, 0, NULL);
// init ADC pad
i2s_set_adc_mode(ADC_UNIT_1, ADC1_CHANNEL_4);
// enable adc sampling, ADC_WIDTH_BIT_12, ADC_ATTEN_DB_11 hard-coded in adc_i2s_mode_init
i2s_adc_enable(I2S_NUM_0);
}
static void i2s_adc_test(void)
{
uint16_t *i2sReadBuffer = (uint16_t *)calloc(1024, sizeof(uint16_t));
size_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_RATE_MS);
// read data from adc, will block until buffer is full
i2s_read(I2S_NUM_0, (void *)i2sReadBuffer, 1024 * sizeof(uint16_t), &bytesRead, portMAX_DELAY);
// calc average
int64_t adcSumValue = 0;
for (size_t i = 0; i < 1024; i++) {
adcSumValue += i2sReadBuffer[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(i2sReadBuffer);
}
static void i2s_adc_release(void)
{
i2s_adc_disable(I2S_NUM_0);
i2s_driver_uninstall(I2S_NUM_0);
}
TEST_CASE("adc1 and i2s work with wifi","[adc][ignore]")
{
i2s_adc_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));
i2s_adc_test();
//now start wifi
printf("wifi start...\n");
TEST_ESP_OK(esp_wifi_start());
//test reading during wifi on
i2s_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();
i2s_adc_test();
i2s_adc_release();
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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