mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
46e71e43ba
By design, it's 12 dB. There're errors among chips, so the actual attenuation will be 11dB more or less
330 lines
10 KiB
C
330 lines
10 KiB
C
/*
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* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/*
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Tests for the adc2 device driver
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*/
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#include "esp_system.h"
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#include "unity.h"
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#include "esp_system.h"
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#include "esp_event.h"
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#include "esp_wifi.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "test_utils.h"
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#include "driver/i2s.h"
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#include "driver/gpio.h"
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#include "driver/adc.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "driver/gpio.h"
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#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32S3)
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static const char* TAG = "test_adc2";
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#define DEFAULT_SSID "TEST_SSID"
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#define DEFAULT_PWD "TEST_PASS"
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#if CONFIG_IDF_TARGET_ESP32
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#define ADC2_CHAN1 ADC2_CHANNEL_9
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#define ADC_WIDTH ADC_WIDTH_BIT_12
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#define ADC_HIGH 4095
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#define ADC_ERROR_THRES 200
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#elif CONFIG_IDF_TARGET_ESP32S2
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#define ADC2_CHAN1 ADC2_CHANNEL_7
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#define ADC_WIDTH ADC_WIDTH_BIT_13
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#define ADC_HIGH 8191
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#define ADC_ERROR_THRES 200
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#elif CONFIG_IDF_TARGET_ESP32C3
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#define ADC2_CHAN1 ADC2_CHANNEL_0
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#define ADC_WIDTH ADC_WIDTH_BIT_12
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#define ADC_HIGH 4095
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#define ADC_ERROR_THRES 200
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#elif CONFIG_IDF_TARGET_ESP32S3
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#define ADC2_CHAN1 ADC2_CHANNEL_0
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#define ADC_WIDTH ADC_WIDTH_BIT_12
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#define ADC_HIGH 4095
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#define ADC_ERROR_THRES 200
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#endif
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#define ADC_LOW 0
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#define TEST_NUM 8
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#define MINUS_UNTIL_ZERO(a, b) ( ((a) > (b)) ? ((a)-(b)): 0)
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#define TIME_REMAIN(start, now, timeout) ((start) >= (now) ? MINUS_UNTIL_ZERO((timeout), (now)-(start)) : -1)
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static void wifi_event_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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printf("ev_handle_called.\n");
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switch(event_id) {
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case WIFI_EVENT_STA_START:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_START");
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//do not actually connect in test case
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//;
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break;
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case WIFI_EVENT_STA_DISCONNECTED:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_DISCONNECTED");
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TEST_ESP_OK(esp_wifi_connect());
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break;
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default:
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break;
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}
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return ;
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}
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static void ip_event_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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ip_event_got_ip_t *event;
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printf("ev_handle_called.\n");
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switch(event_id) {
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case IP_EVENT_STA_GOT_IP:
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event = (ip_event_got_ip_t*)event_data;
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ESP_LOGI(TAG, "IP_EVENT_STA_GOT_IP");
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ESP_LOGI(TAG, "got ip:" IPSTR "\n", IP2STR(&event->ip_info.ip));
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break;
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default:
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break;
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}
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return ;
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}
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static int event_init(void)
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{
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TEST_ESP_OK(esp_event_loop_create_default());
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ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, ESP_EVENT_ANY_ID, &ip_event_handler, NULL));
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return ESP_OK;
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}
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static int event_deinit(void)
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{
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ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler));
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ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, ESP_EVENT_ANY_ID, &ip_event_handler));
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return ESP_OK;
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}
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TEST_CASE("adc2 work with wifi","[adc]")
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{
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test_case_uses_tcpip();
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//---------------------------------WiFi init-----------------------------------//
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printf("nvs init\n");
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esp_err_t r = nvs_flash_init();
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if (r == ESP_ERR_NVS_NO_FREE_PAGES || r == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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printf("no free pages or nvs version mismatch, erase..\n");
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TEST_ESP_OK(nvs_flash_erase());
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r = nvs_flash_init();
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}
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TEST_ESP_OK( r);
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esp_netif_init();
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event_init();
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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TEST_ESP_OK(esp_wifi_init(&cfg));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = DEFAULT_SSID,
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.password = DEFAULT_PWD
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},
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};
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TEST_ESP_OK(esp_wifi_set_mode(WIFI_MODE_STA));
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TEST_ESP_OK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
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//---------------------------------ADC init-----------------------------------//
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int read_raw;
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int target_value;
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gpio_num_t test_adc_io;
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bool test_list[TEST_NUM] ={1, 1, 0, 0, 1, 0, 1, 0};
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adc2_pad_get_io_num(ADC2_CHAN1, &test_adc_io);
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TEST_ESP_OK(adc2_config_channel_atten(ADC2_CHAN1, ADC_ATTEN_0db));
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printf("test_adc_io is %d\n", test_adc_io);
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//---------------------------------GPIO init-----------------------------------//
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gpio_config_t gpio_cfg = {
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.pin_bit_mask = BIT64(test_adc_io),
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.mode = GPIO_MODE_OUTPUT,
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//for powersave reasons, the GPIO should not be floating, select pullup
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.pull_up_en = true,
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.pull_down_en = false,
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.intr_type = GPIO_INTR_DISABLE,
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};
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gpio_config(&gpio_cfg);
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for (int i = 0; i < TEST_NUM; i++) {
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TEST_ESP_OK(gpio_set_level(test_adc_io, test_list[i]));
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target_value = test_list[i] ? ADC_HIGH : ADC_LOW;
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/* ADC2 single read before WIFI start */
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TEST_ESP_OK(adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw));
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printf("Before WiFi starts, ADC read: %d (target_value: %d)\n", read_raw, target_value);
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TEST_ASSERT_INT_WITHIN(ADC_ERROR_THRES, target_value, read_raw);
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/* ADC2 single read when WIFI is on */
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TEST_ESP_OK(esp_wifi_start());
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#if CONFIG_IDF_TARGET_ESP32
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TEST_ASSERT_EQUAL(adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw), ESP_ERR_TIMEOUT);
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#elif SOC_ADC_ARBITER_SUPPORTED
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esp_err_t ret;
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int32_t start = xTaskGetTickCount();
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int32_t now;
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int32_t remain_wait_ms = 0;
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int32_t timeout = pdMS_TO_TICKS(10);
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do {
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now = xTaskGetTickCount();
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remain_wait_ms = pdTICKS_TO_MS(TIME_REMAIN(start, now, timeout));
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ret = adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw);
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if (ret == ESP_OK) {
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printf("When WiFi is ON, ADC read: %d (target_value: %d)\n", read_raw, target_value);
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TEST_ASSERT_INT_WITHIN(ADC_ERROR_THRES, target_value, read_raw);
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break;
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} else if (ret == ESP_ERR_INVALID_STATE) {
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continue;
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} else {
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TEST_ESP_OK(ret);
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}
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} while (remain_wait_ms);
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#endif
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/* ADC2 single read after WIFI is off */
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TEST_ESP_OK(esp_wifi_stop());
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TEST_ESP_OK(adc2_get_raw(ADC2_CHAN1, ADC_WIDTH, &read_raw));
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printf("After WiFi is OFF, ADC read: %d (target_value: %d)\n", read_raw, target_value);
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TEST_ASSERT_INT_WITHIN(ADC_ERROR_THRES, target_value, read_raw);
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}
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TEST_ESP_OK(esp_wifi_deinit());
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event_deinit();
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nvs_flash_deinit();
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TEST_IGNORE_MESSAGE("this test case is ignored due to the critical memory leak of esp_netif and event_loop.");
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}
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#endif //#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32S3)
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#ifdef CONFIG_IDF_TARGET_ESP32
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#define ADC1_CHANNEL_4_IO (32)
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#define SAMPLE_RATE (36000)
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#define SAMPLE_BITS (16)
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static void i2s_adc_init(void)
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{
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i2s_config_t i2s_config = {
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.mode = I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_ADC_BUILT_IN,
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.sample_rate = SAMPLE_RATE,
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.bits_per_sample = SAMPLE_BITS,
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.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
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.intr_alloc_flags = 0,
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.dma_buf_count = 2,
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.dma_buf_len = 1024,
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.use_apll = 0,
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};
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// install and start I2S driver
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i2s_driver_install(I2S_NUM_0, &i2s_config, 0, NULL);
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// init ADC pad
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i2s_set_adc_mode(ADC_UNIT_1, ADC1_CHANNEL_4);
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// enable adc sampling, ADC_WIDTH_BIT_12, ADC_ATTEN_DB_12 hard-coded in adc_i2s_mode_init
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i2s_adc_enable(I2S_NUM_0);
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}
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static void i2s_adc_test(void)
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{
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uint16_t *i2sReadBuffer = (uint16_t *)calloc(1024, sizeof(uint16_t));
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size_t bytesRead;
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for (int loop = 0; loop < 10; loop++) {
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for (int level = 0; level <= 1; level++) {
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if (level == 0) {
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gpio_set_pull_mode(ADC1_CHANNEL_4_IO, GPIO_PULLDOWN_ONLY);
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} else {
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gpio_set_pull_mode(ADC1_CHANNEL_4_IO, GPIO_PULLUP_ONLY);
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}
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vTaskDelay(200 / portTICK_RATE_MS);
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// read data from adc, will block until buffer is full
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i2s_read(I2S_NUM_0, (void *)i2sReadBuffer, 1024 * sizeof(uint16_t), &bytesRead, portMAX_DELAY);
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// calc average
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int64_t adcSumValue = 0;
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for (size_t i = 0; i < 1024; i++) {
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adcSumValue += i2sReadBuffer[i] & 0xfff;
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}
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int adcAvgValue = adcSumValue / 1024;
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printf("adc average val: %d\n", adcAvgValue);
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if (level == 0) {
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TEST_ASSERT_LESS_THAN(100, adcAvgValue);
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} else {
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TEST_ASSERT_GREATER_THAN(4000, adcAvgValue);
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}
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}
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}
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free(i2sReadBuffer);
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}
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static void i2s_adc_release(void)
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{
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i2s_adc_disable(I2S_NUM_0);
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i2s_driver_uninstall(I2S_NUM_0);
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}
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TEST_CASE("adc1 and i2s work with wifi","[adc][ignore]")
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{
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i2s_adc_init();
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//init wifi
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printf("nvs init\n");
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esp_err_t r = nvs_flash_init();
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if (r == ESP_ERR_NVS_NO_FREE_PAGES || r == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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printf("no free pages or nvs version mismatch, erase..\n");
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TEST_ESP_OK(nvs_flash_erase());
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r = nvs_flash_init();
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}
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TEST_ESP_OK(r);
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esp_netif_init();
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event_init();
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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TEST_ESP_OK(esp_wifi_init(&cfg));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = DEFAULT_SSID,
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.password = DEFAULT_PWD
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},
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};
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TEST_ESP_OK(esp_wifi_set_mode(WIFI_MODE_STA));
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TEST_ESP_OK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
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i2s_adc_test();
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//now start wifi
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printf("wifi start...\n");
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TEST_ESP_OK(esp_wifi_start());
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//test reading during wifi on
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i2s_adc_test();
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//wifi stop again
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printf("wifi stop...\n");
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TEST_ESP_OK( esp_wifi_stop() );
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TEST_ESP_OK(esp_wifi_deinit());
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event_deinit();
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nvs_flash_deinit();
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i2s_adc_test();
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i2s_adc_release();
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printf("test passed...\n");
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TEST_IGNORE_MESSAGE("this test case is ignored due to the critical memory leak of esp_netif and event_loop.");
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}
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#endif
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