1.update touch sensor driver for esp32s2; 2.update unit test for touch sensor; 3.update register files about touch sensor;
376 lines
No EOL
14 KiB
C
376 lines
No EOL
14 KiB
C
// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/*
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Tests for the touch sensor device driver
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*/
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#include "esp_system.h"
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#include "driver/touch_pad.h"
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#include "unity.h"
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#include "esp_system.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.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 "soc/rtc_cntl_reg.h"
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#include "soc/rtc_cntl_struct.h"
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#include "soc/sens_reg.h"
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#include "soc/sens_struct.h"
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#include "soc/rtc_cntl_reg.h"
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#include "soc/rtc_cntl_struct.h"
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#include "soc/rtc_io_reg.h"
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#include "soc/rtc_io_struct.h"
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#if !DISABLED_FOR_TARGETS(ESP8266, ESP32S2) // This testcase for ESP32
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static const char *TAG = "test_touch";
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#define TOUCH_READ_INVALID_VAL (0)
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#define TOUCHPAD_FILTER_TOUCH_PERIOD (10)
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#define TOUCH_REG_BASE_TEST() ({ \
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TEST_ASSERT_EQUAL_UINT32(RTC_CNTL_BROWN_OUT_REG, &RTCCNTL.brown_out.val); \
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TEST_ASSERT_EQUAL_UINT32(REG_GET_FIELD(SENS_SARDATE_REG, SENS_SAR_DATE), SENS.sardate.sar_date); \
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TEST_ASSERT_EQUAL_UINT32(REG_GET_FIELD(RTC_IO_DATE_REG, RTC_IO_IO_DATE), RTCIO.date.date); \
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})
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#define TOUCH_READ_ERROR (100)
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#define TEST_TOUCH_COUNT_NUM (10)
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#define TEST_TOUCH_CHANNEL (3)
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static touch_pad_t touch_list[TEST_TOUCH_CHANNEL] = {
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// TOUCH_PAD_NUM0,
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// TOUCH_PAD_NUM1 is GPIO0, for download.
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// TOUCH_PAD_NUM2,
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// TOUCH_PAD_NUM3,
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// TOUCH_PAD_NUM4,
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// TOUCH_PAD_NUM5,
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// TOUCH_PAD_NUM6,
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TOUCH_PAD_NUM7,
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TOUCH_PAD_NUM8,
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TOUCH_PAD_NUM9,
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};
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static void printf_touch_hw_read(const char *str)
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{
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uint16_t touch_value;
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printf("[%s] ", str);
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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while (!touch_pad_meas_is_done()) ;
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touch_pad_read_raw_data(touch_list[i], &touch_value);
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printf("[%d]%d ", touch_list[i], touch_value);
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}
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printf("\r\n");
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}
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/*
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* Change the slope to get larger value from touch sensor.
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*/
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static void test_press_fake(touch_pad_t pad_num)
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{
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touch_pad_set_cnt_mode(pad_num, TOUCH_PAD_SLOPE_2, TOUCH_PAD_TIE_OPT_DEFAULT);
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}
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/*
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* Change the slope to get smaller value from touch sensor.
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*/
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static void test_release_fake(touch_pad_t pad_num)
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{
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touch_pad_set_cnt_mode(pad_num, TOUCH_PAD_SLOPE_7, TOUCH_PAD_TIE_OPT_DEFAULT);
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}
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static esp_err_t test_touch_sw_read_test_runner(void)
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{
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ESP_LOGI(TAG, "%s", __func__);
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uint16_t touch_value;
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TEST_ESP_OK( touch_pad_init() );
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TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
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}
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// Start task to read values sensed by pads
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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printf("test T%d\n", touch_list[i]);
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touch_pad_read(touch_list[i], &touch_value);
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printf("T%d:[%4d] ", touch_list[i], touch_value);
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}
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printf("\n");
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TEST_ESP_OK( touch_pad_deinit() );
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return ESP_OK;
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}
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static esp_err_t test_touch_sw_read(void)
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{
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ESP_LOGI(TAG, "%s", __func__);
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uint16_t touch_value;
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TEST_ESP_OK( touch_pad_init() );
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TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
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}
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// Start task to read values sensed by pads
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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printf("test T%d\n", touch_list[i]);
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TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_value) );
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printf("T%d:[%4d] ", touch_list[i], touch_value);
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
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}
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printf("\n");
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TEST_ESP_OK( touch_pad_deinit() );
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return ESP_OK;
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}
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static esp_err_t test_touch_timer_read(void)
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{
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ESP_LOGI(TAG, "%s", __func__);
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uint16_t touch_value[TEST_TOUCH_CHANNEL], touch_temp[TEST_TOUCH_CHANNEL];
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int t_cnt = TEST_TOUCH_COUNT_NUM;
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TEST_ESP_OK( touch_pad_init() );
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TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
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}
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// Start task to read values sensed by pads
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_value[i]) );
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printf("T%d:[%4d] ", touch_list[i], touch_value[i]);
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value[i]);
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}
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while (t_cnt--) {
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// Start task to read values sensed by pads
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_temp[i]) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_temp[i]);
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TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
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}
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vTaskDelay(50 / portTICK_PERIOD_MS);
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}
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TEST_ESP_OK( touch_pad_deinit() );
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return ESP_OK;
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}
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static esp_err_t test_touch_filtered_read(void)
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{
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ESP_LOGI(TAG, "%s", __func__);
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uint16_t touch_value, touch_temp;
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int t_cnt = TEST_TOUCH_COUNT_NUM;
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TEST_ESP_OK( touch_pad_init() );
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TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
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}
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// Initialize and start a software filter to detect slight change of capacitance.
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touch_pad_filter_start(TOUCHPAD_FILTER_TOUCH_PERIOD);
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vTaskDelay(10 / portTICK_PERIOD_MS);
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while (t_cnt--) {
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_read(touch_list[i], &touch_value) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
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TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
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TEST_ESP_OK( touch_pad_read_filtered(touch_list[i], &touch_temp) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_temp);
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TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
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printf("T%d:[%4d] ", touch_list[i], touch_value);
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}
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vTaskDelay(50 / portTICK_PERIOD_MS);
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}
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printf("\n");
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TEST_ESP_OK( touch_pad_deinit() );
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return ESP_OK;
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}
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// test the basic configuration function with right parameters and error parameters
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TEST_CASE("Touch Sensor all channel read test", "[touch]")
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{
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TOUCH_REG_BASE_TEST();
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test_touch_sw_read_test_runner();
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TEST_ESP_OK( test_touch_sw_read() );
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TEST_ESP_OK( test_touch_timer_read() );
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TEST_ESP_OK( test_touch_filtered_read() );
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}
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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)
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{
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ESP_LOGI(TAG, "%s", __func__);
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uint16_t touch_value;
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TEST_ESP_OK( touch_pad_init() );
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TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
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TEST_ESP_OK( touch_pad_config(pad_num, TOUCH_READ_INVALID_VAL) );
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touch_pad_set_meas_time(slp_time, meas_time);
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touch_pad_set_voltage(vol_h, vol_l, vol_a);
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touch_pad_set_cnt_mode(pad_num, slope, TOUCH_PAD_TIE_OPT_DEFAULT);
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// Initialize and start a software filter to detect slight change of capacitance.
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touch_pad_filter_start(TOUCHPAD_FILTER_TOUCH_PERIOD);
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vTaskDelay(500 / portTICK_PERIOD_MS);
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// Start task to read values sensed by pads
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TEST_ESP_OK( touch_pad_read(pad_num, &touch_value) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
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printf("T%d:[%4d] ", pad_num, touch_value);
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TEST_ESP_OK( touch_pad_read_raw_data(pad_num, &touch_value) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
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printf("T%d:[%4d] ", pad_num, touch_value);
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TEST_ESP_OK( touch_pad_read_filtered(pad_num, &touch_value) );
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TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
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printf("T%d:[%4d] \n", pad_num, touch_value);
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TEST_ESP_OK( touch_pad_deinit() );
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return touch_value;
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}
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TEST_CASE("Touch Sensor parameters test", "[touch]")
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{
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int touch_val[5] = {0};
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ESP_LOGI(TAG, "Charge / incharge voltage level test");
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touch_val[0] = test_touch_parameter(touch_list[2], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
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TOUCH_HVOLT_2V7, TOUCH_LVOLT_0V5, TOUCH_HVOLT_ATTEN_0V,
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TOUCH_PAD_SLOPE_DEFAULT);
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touch_val[1] = test_touch_parameter(touch_list[2], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
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TOUCH_HVOLT_2V5, TOUCH_LVOLT_0V6, TOUCH_HVOLT_ATTEN_1V,
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TOUCH_PAD_SLOPE_DEFAULT);
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touch_val[2] = test_touch_parameter(touch_list[0], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
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TOUCH_HVOLT_2V4, TOUCH_LVOLT_0V8, TOUCH_HVOLT_ATTEN_1V5,
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TOUCH_PAD_SLOPE_DEFAULT);
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TEST_ASSERT_GREATER_OR_EQUAL(touch_val[0], touch_val[1]);
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TEST_ASSERT_GREATER_OR_EQUAL(touch_val[1], touch_val[2]);
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ESP_LOGI(TAG, "Measure time / sleep time test");
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touch_val[0] = test_touch_parameter(touch_list[0], 0xff, 0xa,
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TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT);
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touch_val[1] = test_touch_parameter(touch_list[0], 0x1ff, 0xf,
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TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT);
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touch_val[2] = test_touch_parameter(touch_list[0], 0x2fff, 0x1f,
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TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT);
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TEST_ASSERT_GREATER_OR_EQUAL(touch_val[0], touch_val[1]);
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TEST_ASSERT_GREATER_OR_EQUAL(touch_val[1], touch_val[2]);
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ESP_LOGI(TAG, "Charge / incharge slope level test");
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touch_val[0] = test_touch_parameter(touch_list[1], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
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TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, 1);
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touch_val[1] = test_touch_parameter(touch_list[1], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
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TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, 3);
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touch_val[2] = test_touch_parameter(touch_list[1], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
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TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, 7);
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TEST_ASSERT_GREATER_OR_EQUAL(touch_val[0], touch_val[1]);
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TEST_ASSERT_GREATER_OR_EQUAL(touch_val[1], touch_val[2]);
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}
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static bool s_pad_activated[TOUCH_PAD_MAX];
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static void test_touch_intr_cb(void *arg)
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{
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uint32_t pad_intr = touch_pad_get_status();
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ets_printf("T%x ", pad_intr);
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//clear interrupt
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touch_pad_clear_status();
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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if ((pad_intr >> touch_list[i]) & 0x1) {
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s_pad_activated[touch_list[i]] = true;
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}
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}
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}
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static esp_err_t test_touch_interrupt(void)
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{
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ESP_LOGI(TAG, "%s", __func__);
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uint16_t touch_value;
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TEST_ESP_OK( touch_pad_init() );
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TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
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touch_pad_set_voltage(TOUCH_HVOLT_2V7, TOUCH_LVOLT_0V5, TOUCH_HVOLT_ATTEN_1V);
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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TEST_ESP_OK( touch_pad_config(touch_list[i], TOUCH_READ_INVALID_VAL) );
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}
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// Initialize and start a software filter to detect slight change of capacitance.
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touch_pad_filter_start(TOUCHPAD_FILTER_TOUCH_PERIOD);
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vTaskDelay(10 / portTICK_PERIOD_MS);
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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//read filtered value
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TEST_ESP_OK( touch_pad_read_filtered(touch_list[i], &touch_value) );
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ESP_LOGI(TAG, "test init: touch pad [%d] val is %d", touch_list[i], touch_value);
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//set interrupt threshold.
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TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * 2 / 3) );
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}
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// Register touch interrupt ISR
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TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL) );
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TEST_ESP_OK( touch_pad_clear_status() );
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TEST_ESP_OK( touch_pad_intr_enable() );
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int test_cnt = TEST_TOUCH_COUNT_NUM;
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while (test_cnt--) {
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ESP_LOGI(TAG, "touch push");
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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test_press_fake(touch_list[i]);
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}
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vTaskDelay(100 / portTICK_PERIOD_MS);
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printf_touch_hw_read("push");
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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if (s_pad_activated[touch_list[i]] == false) {
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ESP_LOGE(TAG, "touch%d not active", touch_list[i]);
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TEST_FAIL();
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}
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}
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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s_pad_activated[touch_list[i]] = 0;
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}
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ESP_LOGI(TAG, "touch release");
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for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
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test_release_fake(touch_list[i]);
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}
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printf_touch_hw_read("release");
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}
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TEST_ESP_OK( touch_pad_deinit() );
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return ESP_OK;
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}
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TEST_CASE("Touch Sensor interrupt test", "[touch]")
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{
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TEST_ESP_OK( test_touch_interrupt() );
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}
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#endif // !DISABLED_FOR_TARGETS(ESP8266, ESP32)
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