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esp-idf/components/driver/test/touch_sensor_test/test_esp32.c
Jan Brudný 58f79e6b00 driver: update copyright notice
2021-05-24 01:06:17 +02:00

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/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/*
Tests for the touch sensor device driver for ESP32
*/
#include "sdkconfig.h"
#if CONFIG_IDF_TARGET_ESP32
#include "esp_system.h"
#include "driver/touch_pad.h"
#include "unity.h"
#include "esp_system.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "test_utils.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/rtc_cntl_struct.h"
#include "soc/sens_reg.h"
#include "soc/sens_struct.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/rtc_cntl_struct.h"
#include "soc/rtc_io_reg.h"
#include "soc/rtc_io_struct.h"
#include "esp_rom_sys.h"
static const char *TAG = "test_touch";
#define TOUCH_READ_INVALID_VAL (0)
#define TOUCHPAD_FILTER_TOUCH_PERIOD (10)
#define TOUCH_REG_BASE_TEST() ({ \
TEST_ASSERT_EQUAL_UINT32(RTC_CNTL_BROWN_OUT_REG, &RTCCNTL.brown_out.val); \
TEST_ASSERT_EQUAL_UINT32(REG_GET_FIELD(SENS_SARDATE_REG, SENS_SAR_DATE), SENS.sardate.sar_date); \
TEST_ASSERT_EQUAL_UINT32(REG_GET_FIELD(RTC_IO_DATE_REG, RTC_IO_IO_DATE), RTCIO.date.date); \
})
#define TOUCH_READ_ERROR (100)
#define TEST_TOUCH_COUNT_NUM (10)
#define TEST_TOUCH_CHANNEL (3)
static touch_pad_t touch_list[TEST_TOUCH_CHANNEL] = {
// TOUCH_PAD_NUM0,
// TOUCH_PAD_NUM1 is GPIO0, for download.
// TOUCH_PAD_NUM2,
// TOUCH_PAD_NUM3,
// TOUCH_PAD_NUM4,
// TOUCH_PAD_NUM5,
// TOUCH_PAD_NUM6,
TOUCH_PAD_NUM7,
TOUCH_PAD_NUM8,
TOUCH_PAD_NUM9,
};
static void printf_touch_hw_read(const char *str)
{
uint16_t touch_value;
printf("[%s] ", str);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
while (!touch_pad_meas_is_done()) ;
touch_pad_read_raw_data(touch_list[i], &touch_value);
printf("[%d]%d ", touch_list[i], touch_value);
}
printf("\r\n");
}
/*
* Change the slope to get larger value from touch sensor.
*/
static void test_press_fake(touch_pad_t pad_num)
{
touch_pad_set_cnt_mode(pad_num, TOUCH_PAD_SLOPE_2, TOUCH_PAD_TIE_OPT_DEFAULT);
}
/*
* Change the slope to get smaller value from touch sensor.
*/
static void test_release_fake(touch_pad_t pad_num)
{
touch_pad_set_cnt_mode(pad_num, TOUCH_PAD_SLOPE_7, TOUCH_PAD_TIE_OPT_DEFAULT);
}
static esp_err_t test_touch_sw_read_test_runner(void)
{
ESP_LOGI(TAG, "%s", __func__);
uint16_t touch_value;
TEST_ESP_OK( touch_pad_init() );
TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
}
// Start task to read values sensed by pads
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
printf("test T%d\n", touch_list[i]);
touch_pad_read(touch_list[i], &touch_value);
printf("T%d:[%4d] ", touch_list[i], touch_value);
}
printf("\n");
TEST_ESP_OK( touch_pad_deinit() );
return ESP_OK;
}
static esp_err_t test_touch_sw_read(void)
{
ESP_LOGI(TAG, "%s", __func__);
uint16_t touch_value;
TEST_ESP_OK( touch_pad_init() );
TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
}
// Start task to read values sensed by pads
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
printf("test T%d\n", touch_list[i]);
TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_value) );
printf("T%d:[%4d] ", touch_list[i], touch_value);
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
}
printf("\n");
TEST_ESP_OK( touch_pad_deinit() );
return ESP_OK;
}
static esp_err_t test_touch_timer_read(void)
{
ESP_LOGI(TAG, "%s", __func__);
uint16_t touch_value[TEST_TOUCH_CHANNEL], touch_temp[TEST_TOUCH_CHANNEL];
int t_cnt = TEST_TOUCH_COUNT_NUM;
TEST_ESP_OK( touch_pad_init() );
TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
}
// Start task to read values sensed by pads
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_value[i]) );
printf("T%d:[%4d] ", touch_list[i], touch_value[i]);
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value[i]);
}
while (t_cnt--) {
// Start task to read values sensed by pads
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_temp[i]) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_temp[i]);
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
}
vTaskDelay(50 / portTICK_PERIOD_MS);
}
TEST_ESP_OK( touch_pad_deinit() );
return ESP_OK;
}
static esp_err_t test_touch_filtered_read(void)
{
ESP_LOGI(TAG, "%s", __func__);
uint16_t touch_value, touch_temp;
int t_cnt = TEST_TOUCH_COUNT_NUM;
TEST_ESP_OK( touch_pad_init() );
TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
}
// Initialize and start a software filter to detect slight change of capacitance.
touch_pad_filter_start(TOUCHPAD_FILTER_TOUCH_PERIOD);
vTaskDelay(10 / portTICK_PERIOD_MS);
while (t_cnt--) {
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_value) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
TEST_ESP_OK( touch_pad_read_filtered(touch_list[i], &touch_temp) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_temp);
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
printf("T%d:[%4d] ", touch_list[i], touch_value);
}
vTaskDelay(50 / portTICK_PERIOD_MS);
}
printf("\n");
TEST_ESP_OK( touch_pad_deinit() );
return ESP_OK;
}
// test the basic configuration function with right parameters and error parameters
TEST_CASE("Touch Sensor all channel read test", "[touch]")
{
TOUCH_REG_BASE_TEST();
test_touch_sw_read_test_runner();
TEST_ESP_OK( test_touch_sw_read() );
TEST_ESP_OK( test_touch_timer_read() );
TEST_ESP_OK( test_touch_filtered_read() );
}
static int test_touch_parameter(touch_pad_t pad_num, int meas_time, int slp_time, int vol_h, int vol_l, int vol_a, int slope)
{
ESP_LOGI(TAG, "%s", __func__);
uint16_t touch_value;
TEST_ESP_OK( touch_pad_init() );
TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
TEST_ESP_OK( touch_pad_config(pad_num, TOUCH_READ_INVALID_VAL) );
touch_pad_set_meas_time(slp_time, meas_time);
touch_pad_set_voltage(vol_h, vol_l, vol_a);
touch_pad_set_cnt_mode(pad_num, slope, TOUCH_PAD_TIE_OPT_DEFAULT);
// Initialize and start a software filter to detect slight change of capacitance.
touch_pad_filter_start(TOUCHPAD_FILTER_TOUCH_PERIOD);
vTaskDelay(500 / portTICK_PERIOD_MS);
// Start task to read values sensed by pads
TEST_ESP_OK( touch_pad_read(pad_num, &touch_value) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
printf("T%d:[%4d] ", pad_num, touch_value);
TEST_ESP_OK( touch_pad_read_raw_data(pad_num, &touch_value) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
printf("T%d:[%4d] ", pad_num, touch_value);
TEST_ESP_OK( touch_pad_read_filtered(pad_num, &touch_value) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
printf("T%d:[%4d] \n", pad_num, touch_value);
TEST_ESP_OK( touch_pad_deinit() );
return touch_value;
}
TEST_CASE("Touch Sensor parameters test", "[touch]")
{
int touch_val[5] = {0};
ESP_LOGI(TAG, "Charge / incharge voltage level test");
touch_val[0] = test_touch_parameter(touch_list[2], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
TOUCH_HVOLT_2V7, TOUCH_LVOLT_0V5, TOUCH_HVOLT_ATTEN_0V,
TOUCH_PAD_SLOPE_DEFAULT);
touch_val[1] = test_touch_parameter(touch_list[2], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
TOUCH_HVOLT_2V5, TOUCH_LVOLT_0V6, TOUCH_HVOLT_ATTEN_1V,
TOUCH_PAD_SLOPE_DEFAULT);
touch_val[2] = test_touch_parameter(touch_list[0], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
TOUCH_HVOLT_2V4, TOUCH_LVOLT_0V8, TOUCH_HVOLT_ATTEN_1V5,
TOUCH_PAD_SLOPE_DEFAULT);
TEST_ASSERT_GREATER_OR_EQUAL(touch_val[0], touch_val[1]);
TEST_ASSERT_GREATER_OR_EQUAL(touch_val[1], touch_val[2]);
ESP_LOGI(TAG, "Measure time / sleep time test");
touch_val[0] = test_touch_parameter(touch_list[0], 0xff, 0xa,
TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT);
touch_val[1] = test_touch_parameter(touch_list[0], 0x1ff, 0xf,
TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT);
touch_val[2] = test_touch_parameter(touch_list[0], 0x2fff, 0x1f,
TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT);
TEST_ASSERT_GREATER_OR_EQUAL(touch_val[0], touch_val[1]);
TEST_ASSERT_GREATER_OR_EQUAL(touch_val[1], touch_val[2]);
ESP_LOGI(TAG, "Charge / incharge slope level test");
touch_val[0] = test_touch_parameter(touch_list[1], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, 1);
touch_val[1] = test_touch_parameter(touch_list[1], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, 3);
touch_val[2] = test_touch_parameter(touch_list[1], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, 7);
TEST_ASSERT_GREATER_OR_EQUAL(touch_val[0], touch_val[1]);
TEST_ASSERT_GREATER_OR_EQUAL(touch_val[1], touch_val[2]);
}
static bool s_pad_activated[TOUCH_PAD_MAX];
static void test_touch_intr_cb(void *arg)
{
uint32_t pad_intr = touch_pad_get_status();
esp_rom_printf("T%x ", pad_intr);
//clear interrupt
touch_pad_clear_status();
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
if ((pad_intr >> touch_list[i]) & 0x1) {
s_pad_activated[touch_list[i]] = true;
}
}
}
static esp_err_t test_touch_interrupt(void)
{
ESP_LOGI(TAG, "%s", __func__);
uint16_t touch_value;
TEST_ESP_OK( touch_pad_init() );
TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
touch_pad_set_voltage(TOUCH_HVOLT_2V7, TOUCH_LVOLT_0V5, TOUCH_HVOLT_ATTEN_1V);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
}
// Initialize and start a software filter to detect slight change of capacitance.
touch_pad_filter_start(TOUCHPAD_FILTER_TOUCH_PERIOD);
vTaskDelay(10 / portTICK_PERIOD_MS);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
//read filtered value
TEST_ESP_OK( touch_pad_read_filtered(touch_list[i], &touch_value) );
ESP_LOGI(TAG, "test init: touch pad [%d] val is %d", touch_list[i], touch_value);
//set interrupt threshold.
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * 2 / 3) );
}
// Register touch interrupt ISR
TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL) );
TEST_ESP_OK( touch_pad_clear_status() );
TEST_ESP_OK( touch_pad_intr_enable() );
int test_cnt = TEST_TOUCH_COUNT_NUM;
while (test_cnt--) {
ESP_LOGI(TAG, "touch push");
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
test_press_fake(touch_list[i]);
}
vTaskDelay(100 / portTICK_PERIOD_MS);
printf_touch_hw_read("push");
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
if (s_pad_activated[touch_list[i]] == false) {
ESP_LOGE(TAG, "touch%d not active", touch_list[i]);
TEST_FAIL();
}
}
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
s_pad_activated[touch_list[i]] = 0;
}
ESP_LOGI(TAG, "touch release");
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
test_release_fake(touch_list[i]);
}
printf_touch_hw_read("release");
}
TEST_ESP_OK( touch_pad_deinit() );
return ESP_OK;
}
TEST_CASE("Touch Sensor interrupt test", "[touch]")
{
TEST_ESP_OK( test_touch_interrupt() );
}
#endif // CONFIG_IDF_TARGET_ESP32
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