esp-idf/components/driver/test/touch_sensor_test/test_esp32s2.c

// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/*
 Tests for the touch sensor device driver
*/
#include <string.h>
#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 "freertos/semphr.h"
#include "freertos/queue.h"
#include "esp_log.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 "soc/apb_ctrl_reg.h"
#include "driver/rtc_io.h"

#if !DISABLED_FOR_TARGETS(ESP8266, ESP32) // This testcase for ESP32S2

static const char *TAG = "test_touch";

#define PLATFORM_SELECT            (1)  //0: pxp; 1: chip
#if (PLATFORM_SELECT == 0)              //PXP platform
#define SET_BREAK_POINT(flag) REG_WRITE(APB_CTRL_DATE_REG, flag)
//PXP clk is slower.
#define SYS_DELAY_TIME_MOM    (1/40)
#define RTC_SLOW_CLK_FLAG     1     // Slow clock is 32KHz.
void test_pxp_deinit_io(void)
{
    for (int i = 0; i < 22; i++) {
        rtc_gpio_init(i);
    }
}
#else
//PXP clk is slower.
#define SET_BREAK_POINT(flag)
#define SYS_DELAY_TIME_MOM    (1)
#define RTC_SLOW_CLK_FLAG     0     // Slow clock is 32KHz.
void test_pxp_deinit_io(void)
{
    ;
}
#endif

#define TOUCH_READ_INVALID_VAL          (SOC_TOUCH_PAD_THRESHOLD_MAX)
#define TOUCH_READ_ERROR                (100)
#define TOUCH_INTR_THRESHOLD            (0.1)
#define TOUCH_EXCEED_TIME_MS            (1000)

#define TOUCH_REG_BASE_TEST() ({    \
   TEST_ASSERT_EQUAL_UINT32(REG_GET_FIELD(RTC_CNTL_DATE_REG, RTC_CNTL_CNTL_DATE), RTCCNTL.date.date);   \
   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 TEST_TOUCH_COUNT_NUM    (5)
#define TEST_TOUCH_CHANNEL      (14)
static touch_pad_t touch_list[TEST_TOUCH_CHANNEL] = {
    // TOUCH_PAD_NUM0, is GPIO0, for download.
    TOUCH_PAD_NUM1,
    TOUCH_PAD_NUM2,
    TOUCH_PAD_NUM3,
    TOUCH_PAD_NUM4,
    TOUCH_PAD_NUM5,
    TOUCH_PAD_NUM6,
    TOUCH_PAD_NUM7,
    TOUCH_PAD_NUM8,
    TOUCH_PAD_NUM9,
    TOUCH_PAD_NUM10,
    TOUCH_PAD_NUM11,
    TOUCH_PAD_NUM12,
    TOUCH_PAD_NUM13,
    TOUCH_PAD_NUM14
};

#define TOUCH_WATERPROOF_RING_PAD TOUCH_PAD_NUM1
static touch_pad_t proximity_pad[3] = {
    TOUCH_PAD_NUM2,
    TOUCH_PAD_NUM3,
    TOUCH_PAD_NUM4,
};

static QueueHandle_t que_touch = NULL;
typedef struct touch_msg {
    touch_pad_intr_mask_t intr_mask;
    uint32_t pad_num;
    uint32_t pad_status;
    uint32_t pad_val;
    uint32_t slp_proxi_cnt;
    uint32_t slp_proxi_base;
} touch_event_t;

static uint32_t s_touch_timeout_mask = 0;

static void printf_touch_hw_read(const char *str)
{
    uint32_t touch_value;
    printf("[%s] ", str);
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        touch_pad_read_raw_data(touch_list[i], &touch_value);
        printf("[%d]%d ", touch_list[i], touch_value);
    }
    printf("\r\n");
}

static void printf_touch_baseline_read(const char *str)
{
    uint32_t touch_value;
    printf("[%s] ", str);
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        printf("[%d]%d ", touch_list[i], touch_value);
    }
    printf("\r\n");
}

static void printf_touch_smooth_read(const char *str)
{
    uint32_t touch_value;
    printf("[%s] ", str);
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        touch_pad_filter_read_smooth(touch_list[i], &touch_value);
        printf("[%d]%d ", touch_list[i], touch_value);
    }
    printf("\r\n");
}


static void test_timeout_trigger_fake(touch_pad_t pad_num)
{
    touch_pad_set_cnt_mode(pad_num, TOUCH_PAD_SLOPE_0, TOUCH_PAD_TIE_OPT_DEFAULT);
}

static void test_timeout_normal(touch_pad_t pad_num)
{
    touch_pad_set_cnt_mode(pad_num, TOUCH_PAD_SLOPE_7, TOUCH_PAD_TIE_OPT_DEFAULT);
}

/*
 * 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_3, TOUCH_PAD_TIE_OPT_DEFAULT);
}

/*
 * Change the slope to get larger 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 void test_touch_push_all(void)
{
    ESP_LOGI(TAG, "touch push");
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        test_press_fake(touch_list[i]);
    }
}

static void test_touch_release_all(void)
{
    ESP_LOGI(TAG, "touch release");
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        test_release_fake(touch_list[i]);
    }
}

/* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
static void test_touch_baseline_not_update(void)
{
    uint32_t touch_val[TEST_TOUCH_CHANNEL] = {0};
    uint32_t touch_temp[TEST_TOUCH_CHANNEL] = {0};

    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_val[i]) );
    }
    for (int i = 0; i < 10; i++) {
        vTaskDelay(20 / portTICK_PERIOD_MS);
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_temp[i]) );
            TEST_ASSERT_EQUAL(touch_temp[i], touch_val[i]);
        }
    }
}

/*
 * Test the stable and change of touch sensor reading in SW mode.
 */
esp_err_t test_touch_sw_read(void)
{
    uint32_t touch_value[TEST_TOUCH_CHANNEL] = {0};
    uint32_t touch_temp[TEST_TOUCH_CHANNEL] = {0};
    uint32_t touch_push[TEST_TOUCH_CHANNEL] = {0};
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    while (test_cnt--) {
        test_touch_release_all();

        /* Read the touch sensor raw data in SW mode. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_sw_start() );
            while (!touch_pad_meas_is_done()) ;
            TEST_ESP_OK( touch_pad_read_raw_data(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]);
        }
        printf("\n");
        /* Check the stable of reading. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            if (touch_temp[i]) {
                TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
            }
            touch_temp[i] = touch_value[i];
        }

        test_touch_push_all();

        /* Read the touch sensor raw data in SW mode. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_sw_start() );
            while (!touch_pad_meas_is_done()) ;
            TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_push[i]) );
            printf("T%d:[%4d] ", touch_list[i], touch_push[i]);
            TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_push[i]);
        }
        printf("\n");
        /* Check the change of reading. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ASSERT_GREATER_THAN(touch_value[i], touch_push[i]);
        }
    }
    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

/*
 * Test the stable and change of touch sensor reading in timer mode.
 * TEST POINT:
 * 1. Timer mode for FSM.
 * 2. Touch channel slope setting.
 * 3. Touch reading stable.
 */
esp_err_t test_touch_timer_read(void)
{
    uint32_t touch_value[TEST_TOUCH_CHANNEL] = {0};
    uint32_t touch_temp[TEST_TOUCH_CHANNEL] = {0};
    uint32_t touch_push[TEST_TOUCH_CHANNEL] = {0};
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    TEST_ESP_OK( touch_pad_init() );
    /* Set different slope for channels to test slope function. */
    printf("Set slope for channel: ");
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
        TEST_ESP_OK( touch_pad_set_cnt_mode(touch_list[i], i % 7 ? i % 7 : 1, TOUCH_PAD_TIE_OPT_DEFAULT) );
        printf("[ch%d-%d] ", touch_list[i], i % 7 ? i % 7 : 1);
    }
    printf("\n");
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    /* Wait touch sensor stable */
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    while (test_cnt--) {
        test_touch_release_all();
        vTaskDelay(50  * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

        // Start task to read values sensed by pads
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value[i]) );
            TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value[i]);
            printf("T%d:[%4d] ", touch_list[i], touch_value[i]);
        }
        printf("\n");
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            if (touch_temp[i]) {
                TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
            }
            touch_temp[i] = touch_value[i];
        }

        test_touch_push_all();
        vTaskDelay(50  * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

        /* Read the touch sensor raw data in FSM mode. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_push[i]) );
            printf("T%d:[%4d] ", touch_list[i], touch_push[i]);
            TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_push[i]);
        }
        printf("\n");
        /* Check the change of reading. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ASSERT_GREATER_THAN(touch_value[i], touch_push[i]);
        }
    }
    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

/*
 * Test the filter mode.
 * TEST POINT:
 * 1. Timer mode for FSM.
 * 2. Touch reading stable.
 * 3. Touch reading init value.
 * 4. Touch reading filtered value equal to raw data.
 */
esp_err_t test_touch_filtered_read(void)
{
    uint32_t touch_value[TEST_TOUCH_CHANNEL] = {0};
    uint32_t touch_temp[TEST_TOUCH_CHANNEL] = {0};

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_32,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    /* Wait touch pad init done. */
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
    /* Test the stable for init value of touch reading.
     * Ideal: baseline == raw data == smooth data.
     */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value[i]) );
        TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value[i]);
        TEST_ESP_OK( touch_pad_read_raw_data(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]);
        TEST_ESP_OK( touch_pad_filter_read_smooth(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]);
    }
    printf("touch filter init value:\n");
    printf_touch_hw_read("raw  ");
    printf_touch_baseline_read("base ");
    printf_touch_smooth_read("smooth");
    printf("\n");

    int test_cnt = TEST_TOUCH_COUNT_NUM;
    while (test_cnt--) {
        /* Touch reading filtered value equal to raw data. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value[i]) );
            TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_temp[i]) );
            TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
            TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &touch_temp[i]) );
            TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
        }
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            if (touch_temp[i]) {
                TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
            }
            touch_temp[i] = touch_value[i];
        }
        vTaskDelay(20 / portTICK_PERIOD_MS);
    }
    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

TEST_CASE("Touch Sensor reading test (SW, Timer, filter)", "[touch]")
{
    TOUCH_REG_BASE_TEST();
    TEST_ESP_OK( test_touch_sw_read() );
    TEST_ESP_OK( test_touch_timer_read() );
    TEST_ESP_OK( test_touch_filtered_read() );
}

/*
 * Test the base patameter mode.
 * TEST POINT:
 * 1. measure time and sleep time setting.
 * 2. Charge / incharge voltage threshold setting.
 * 3. Touch slope setting.
 * 4. Touch reading filtered value equal to raw data.
 */
int test_touch_base_parameter(touch_pad_t pad_num, int meas_time, int slp_time,
                              int vol_h, int vol_l, int vol_a, int slope, bool is_conn_gnd)
{
    uint32_t touch_value = 0;
    uint32_t touch_temp = 0, touch_filter;
    uint64_t val_sum = 0;
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    TEST_ESP_OK( touch_pad_init() );
    /* Note: init all channel, but test one channel. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }

    TEST_ESP_OK( touch_pad_set_cnt_mode(pad_num, slope, TOUCH_PAD_TIE_OPT_DEFAULT) );
    TEST_ESP_OK( touch_pad_set_meas_time(slp_time, meas_time) );
    TEST_ESP_OK( touch_pad_set_voltage(vol_h, vol_l, vol_a) );
    TEST_ESP_OK( touch_pad_set_idle_channel_connect(is_conn_gnd) );
    ESP_LOGI(TAG, "meas_time[%d]_slp_time[%d]_vol_h[%d]_vol_l[%d]_vol_a[%d]_slope[%d]_is_conn_gnd[%d]",
             meas_time, slp_time, vol_h, vol_l, vol_a, slope, is_conn_gnd);

    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_32,    // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    /* Some parameters will delay the init time. so wait longger time */
    vTaskDelay(100 / portTICK_PERIOD_MS);

    while (test_cnt--) {
        /* Correctness of reading. Ideal: baseline == raw data == smooth data. */
        TEST_ESP_OK( touch_pad_read_raw_data(pad_num, &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_baseline(pad_num, &touch_filter) );
        TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_filter, touch_value);
        TEST_ESP_OK( touch_pad_filter_read_smooth(pad_num, &touch_filter) );
        TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_filter, touch_value);

        /* Stable of reading */
        TEST_ESP_OK( touch_pad_read_raw_data(pad_num, &touch_value) );
        TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value);
        if (touch_temp) {
            TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
        }
        touch_temp = touch_value;

        printf("T%d:[%4d] ", pad_num, touch_value);
        val_sum += touch_value; // For check.
        vTaskDelay(20 / portTICK_PERIOD_MS);
    }
    printf("\n");

    TEST_ESP_OK( touch_pad_deinit() );
    return (uint32_t)(val_sum / TEST_TOUCH_COUNT_NUM);
}

TEST_CASE("Touch Sensor base parameters test (meas_time, voltage, slope, inv_conn)", "[touch]")
{
    int touch_val[5] = {0};

    ESP_LOGI(TAG, "Charge / incharge voltage level test");
    touch_val[0] = test_touch_base_parameter(touch_list[2], TOUCH_PAD_MEASURE_CYCLE_DEFAULT, TOUCH_PAD_SLEEP_CYCLE_DEFAULT,
                   TOUCH_HVOLT_2V4, TOUCH_LVOLT_0V8, TOUCH_HVOLT_ATTEN_1V5,
                   TOUCH_PAD_SLOPE_DEFAULT, true);
    touch_val[1] = test_touch_base_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, true);
    touch_val[2] = test_touch_base_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, true);

    TEST_ASSERT_GREATER_THAN(touch_val[0], touch_val[1]);
    TEST_ASSERT_GREATER_THAN(touch_val[1], touch_val[2]);

    ESP_LOGI(TAG, "Measure time / sleep time test");
    touch_val[0] = test_touch_base_parameter(touch_list[1], 0xff, 0x1ff,
                   TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT, true);
    touch_val[1] = test_touch_base_parameter(touch_list[1], 0xfff, 0xff,
                   TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT, true);
    touch_val[2] = test_touch_base_parameter(touch_list[1], 0x1fff, 0xf,
                   TOUCH_PAD_HIGH_VOLTAGE_THRESHOLD, TOUCH_PAD_LOW_VOLTAGE_THRESHOLD, TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD, TOUCH_PAD_SLOPE_DEFAULT, true);

    TEST_ASSERT_GREATER_THAN(touch_val[0], touch_val[1]);
    TEST_ASSERT_GREATER_THAN(touch_val[1], touch_val[2]);

    ESP_LOGI(TAG, "Charge / incharge slope level test");
    touch_val[0] = test_touch_base_parameter(touch_list[0], 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, true);
    touch_val[1] = test_touch_base_parameter(touch_list[0], 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, 5, true);
    touch_val[2] = test_touch_base_parameter(touch_list[0], 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, true);

    TEST_ASSERT_GREATER_THAN(touch_val[0], touch_val[1]);
    TEST_ASSERT_GREATER_THAN(touch_val[1], touch_val[2]);

    /* The GND option causes larger parasitic capacitance and larger reading */
    ESP_LOGI(TAG, "Inactive connect test");
    touch_val[0] = test_touch_base_parameter(touch_list[3], 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, TOUCH_PAD_SLOPE_DEFAULT,
                   false);
    touch_val[1] = test_touch_base_parameter(touch_list[3], 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, TOUCH_PAD_SLOPE_DEFAULT,
                   true);
    TEST_ASSERT_GREATER_THAN(touch_val[0], touch_val[1]);
}

/*
 * Check active interrupt of touch channels.
 */
static esp_err_t test_touch_check_ch_touched(uint32_t test_ch_num, uint32_t exceed_time_ms)
{
    touch_event_t evt = {0};
    esp_err_t ret = ESP_FAIL;
    printf("Active: ");
    while (1) {
        if (pdTRUE == xQueueReceive(que_touch, &evt, exceed_time_ms / portTICK_PERIOD_MS)) {
            if (evt.intr_mask & TOUCH_PAD_INTR_MASK_ACTIVE) {
                printf("0x%x, ", evt.pad_status);
                if (test_ch_num == __builtin_popcount(evt.pad_status)) {
                    ret = ESP_OK;
                    break;
                }
            } else if (evt.intr_mask & (TOUCH_PAD_INTR_MASK_DONE | TOUCH_PAD_INTR_MASK_SCAN_DONE)) {
                continue;
            } else {    // If the interrupt type error, test error.
                ESP_LOGI(TAG, "Touch[%d] intr error, status %d, evt_msk0x%x", evt.pad_num, evt.pad_status, evt.intr_mask);
                break;
            }
        } else {
            ESP_LOGI(TAG, "Touch intr exceed time");
            break;
        }
    }
    printf("\n");
    return ret;
}

/*
 * Check inactive interrupt of touch channels.
 */
static esp_err_t test_touch_check_ch_released(uint32_t test_ch_num, uint32_t exceed_time_ms)
{
    touch_event_t evt = {0};
    esp_err_t ret = ESP_FAIL;
    printf("Inactive: ");
    while (1) {
        if (pdTRUE == xQueueReceive(que_touch, &evt, exceed_time_ms / portTICK_PERIOD_MS)) {
            if (evt.intr_mask & TOUCH_PAD_INTR_MASK_INACTIVE) {
                printf("0x%x, ", evt.pad_status);
                if ((TEST_TOUCH_CHANNEL - test_ch_num) == __builtin_popcount(evt.pad_status)) {
                    ret = ESP_OK;
                    break;
                }
            } else if (evt.intr_mask & (TOUCH_PAD_INTR_MASK_DONE | TOUCH_PAD_INTR_MASK_SCAN_DONE)) {
                continue;
            } else {    // If the interrupt type error, test error.
                ESP_LOGI(TAG, "Touch[%d] intr error, status %d, evt_msk0x%x", evt.pad_num, evt.pad_status, evt.intr_mask);
                break;
            }
        } else {
            ESP_LOGI(TAG, "Touch intr exceed time");
            break;
        }
    }
    printf("\n");
    return ret;
}

static esp_err_t test_touch_check_ch_touched_with_proximity(uint32_t test_ch_num, uint32_t exceed_time_ms)
{
    uint32_t count = 0;
    uint16_t ch_mask = 0;
    touch_event_t evt = {0};
    esp_err_t ret = ESP_FAIL;

    TEST_ESP_OK( touch_pad_proximity_get_count(TOUCH_PAD_MAX, &count) );
    printf("Active: ");
    while (1) {
        if (pdTRUE == xQueueReceive(que_touch, &evt, exceed_time_ms / portTICK_PERIOD_MS)) {
            if (evt.intr_mask & TOUCH_PAD_INTR_MASK_ACTIVE) {
                printf("0x%x, ", evt.pad_status);
                if (test_ch_num == __builtin_popcount(evt.pad_status)) {
                    ret = ESP_OK;
                    break;
                }
            } else if (evt.intr_mask & (TOUCH_PAD_INTR_MASK_SCAN_DONE)) {
                touch_pad_get_channel_mask(&ch_mask);
                for (int i = TOUCH_PAD_MAX - 1; i >= 0; i--) {
                    if (BIT(i) & ch_mask) {
                        if (evt.pad_num == i) {
                            if (count == evt.slp_proxi_cnt) {
                                ets_printf("priximity base(%d) cnt(%d)\n", evt.slp_proxi_base, evt.slp_proxi_cnt);
                            }
                        }
                    }
                }
                continue;
            } else {    // If the interrupt type error, test error.
                ESP_LOGI(TAG, "Touch[%d] intr error, status %d, evt_msk0x%x", evt.pad_num, evt.pad_status, evt.intr_mask);
                continue;;
            }
        } else {
            ESP_LOGI(TAG, "Touch intr exceed time");
            break;
        }
    }
    printf("\n");
    return (esp_err_t)ret;
}

static esp_err_t test_touch_check_ch_released_with_proximity(uint32_t test_ch_num, uint32_t exceed_time_ms)
{
    uint32_t count = 0;
    uint16_t ch_mask = 0;
    touch_event_t evt = {0};
    esp_err_t ret = ESP_FAIL;

    TEST_ESP_OK( touch_pad_proximity_get_count(TOUCH_PAD_MAX, &count) );
    printf("Inactive: ");
    while (1) {
        if (pdTRUE == xQueueReceive(que_touch, &evt, exceed_time_ms / portTICK_PERIOD_MS)) {
            if (evt.intr_mask & TOUCH_PAD_INTR_MASK_INACTIVE) {
                printf("0x%x, ", evt.pad_status);
                if ((TEST_TOUCH_CHANNEL - test_ch_num) == __builtin_popcount(evt.pad_status)) {
                    ret = ESP_OK;
                    break;
                }
            } else if (evt.intr_mask & (TOUCH_PAD_INTR_MASK_SCAN_DONE)) {
                touch_pad_get_channel_mask(&ch_mask);
                for (int i = TOUCH_PAD_MAX - 1; i >= 0; i--) {
                    if (BIT(i) & ch_mask) {
                        if (evt.pad_num == i) {
                            if (count == evt.slp_proxi_cnt) {
                                ets_printf("priximity base(%d) cnt(%d)\n", evt.slp_proxi_base, evt.slp_proxi_cnt);
                            }
                        }
                    }
                }
                continue;
            } else {    // If the interrupt type error, test error.
                ESP_LOGI(TAG, "Touch[%d] intr error, status %d, evt_msk0x%x", evt.pad_num, evt.pad_status, evt.intr_mask);
                continue;;
            }
        } else {
            ESP_LOGI(TAG, "Touch intr exceed time");
            break;
        }
    }
    printf("\n");
    return (esp_err_t)ret;
}

/*
 * Check scan done interrupt of touch channels.
 */
static esp_err_t test_touch_check_ch_intr_scan_done(void)
{
    touch_event_t evt = {0};
    uint16_t ch_mask = 0;
    esp_err_t ret = ESP_FAIL;
    /* Check the scan done interrupt. */
    while (1) {
        if (pdTRUE == xQueueReceive(que_touch, &evt, 1000 / portTICK_PERIOD_MS)) {
            /* Scan done interrupt have bug that be trigger by last two channel. */
            if (evt.intr_mask & TOUCH_PAD_INTR_MASK_SCAN_DONE) {
                touch_pad_get_channel_mask(&ch_mask);
                for (int i = TOUCH_PAD_MAX - 1; i >= 0; i--) {
                    if (BIT(i) & ch_mask) {
                        if (evt.pad_num == i) {
                            ESP_LOGI(TAG, "touch _SCAN_DONE INTR be triggered");
                            ret = ESP_OK;
                        }
                        goto NEXT_TEST;
                    }
                }
            } else if (evt.intr_mask & (TOUCH_PAD_INTR_MASK_DONE | TOUCH_PAD_INTR_MASK_SCAN_DONE)) {
                continue;
            } else {    // If the interrupt type error, test error.
                ESP_LOGI(TAG, "Touch[%d] intr error, status %d, evt_msk0x%x", evt.pad_num, evt.pad_status, evt.intr_mask);
                break;
            }
        } else {
            ESP_LOGI(TAG, "Touch intr exceed time");
            break;
        }
    }
NEXT_TEST:
    printf("\n");
    return (esp_err_t)ret;
}

/*
 * Check timeout interrupt of touch channels.
 */
static esp_err_t test_touch_check_ch_intr_timeout(touch_pad_t pad_num)
{
    esp_err_t ret = ESP_FAIL;
    touch_event_t evt = {0};

    while (1) {
        if (pdTRUE == xQueueReceive(que_touch, &evt, 1000 / portTICK_PERIOD_MS)) {
            /* Scan done interrupt have bug that be trigger by last two channel. */
            if (evt.intr_mask & TOUCH_PAD_INTR_MASK_TIMEOUT) {
                if (pad_num == evt.pad_num) {
                    ESP_LOGI(TAG, "touch TIMEOUT be triggered");
                    s_touch_timeout_mask = 0;
                    ret = ESP_OK;
                    touch_pad_timeout_resume();
                    break;
                } else {
                    ets_printf("-timeout %x T[%d] status %d, evt_msk %x -\n",
                               s_touch_timeout_mask, evt.pad_num, evt.pad_status, evt.intr_mask);
                    touch_pad_timeout_resume();
                }
            } else {
                continue;
            }
        } else {
            ESP_LOGI(TAG, "Touch intr exceed time");
            break;
        }
    }
    printf("\n");
    return (esp_err_t)ret;
}

static void test_touch_intr_cb(void *arg)
{
    uint32_t cnt, touch_value;
    int task_awoken = pdFALSE;
    touch_event_t evt;
    evt.intr_mask = touch_pad_read_intr_status_mask();
    evt.pad_status = touch_pad_get_status();
    evt.pad_num = touch_pad_get_current_meas_channel();

    if (!evt.intr_mask) {
        ets_printf(".");
        return;
    }
    if (evt.intr_mask & TOUCH_PAD_INTR_MASK_SCAN_DONE) {
        touch_pad_filter_read_baseline(evt.pad_num, &evt.pad_val);
        touch_pad_sleep_channel_t slp_config;
        touch_pad_sleep_channel_get_info(&slp_config);
        touch_pad_sleep_channel_read_baseline(slp_config.touch_num, &touch_value);
        touch_pad_sleep_channel_read_proximity_cnt(slp_config.touch_num, &cnt);
        evt.slp_proxi_cnt = cnt;
        evt.slp_proxi_base = touch_value;
        // ets_printf("[intr] base(%d) cnt(%d)\n", touch_value, cnt);
    }
    if (evt.intr_mask & TOUCH_PAD_INTR_MASK_TIMEOUT) {
        s_touch_timeout_mask |= (BIT(evt.pad_num));
        ets_printf("-%dtout-", SENS.sar_touch_status0.touch_scan_curr);
    }

    xQueueSendFromISR(que_touch, &evt, &task_awoken);
    if (task_awoken == pdTRUE) {
        portYIELD_FROM_ISR();
    }
}

/*
 * Test the touch active/inactive interrupt.
 * TEST POINT:
 * 1. Touch interrupt.
 * 2. Raw data noise.
 * 3. smooth data and baseline data.
 */
esp_err_t test_touch_interrupt(void)
{
    uint32_t touch_value, smooth;
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL);
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    // Initialize and start a software filter to detect slight change of capacitance.
    vTaskDelay(50 / portTICK_PERIOD_MS);

    /* Set threshold of touch sensor */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
                 touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    while (test_cnt--) {
        test_touch_push_all();
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("push");

        /* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
        test_touch_baseline_not_update();

        test_touch_release_all();
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

/*
 * Test the touch active/inactive, scan_done interrupt.
 * TEST POINT:
 * 1. Touch interrupt.
 * 2. Raw data noise.
 * 3. smooth data and baseline data.
 */
esp_err_t test_touch_scan_done_interrupt(void)
{
    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    uint32_t touch_value, smooth;
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_SCAN_DONE | TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    /* Check the scan done interrupt */
    TEST_ESP_OK( test_touch_check_ch_intr_scan_done() );

    vTaskDelay(50 / portTICK_PERIOD_MS);

    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d", \
                 touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    while (test_cnt--) {
        test_touch_push_all();
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("push");

        /* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
        test_touch_baseline_not_update();

        test_touch_release_all();
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

/*
 * Test the touch active/inactive, timeout interrupt.
 * TEST POINT:
 * 1. Touch interrupt.
 * 2. Raw data noise.
 * 3. smooth data and baseline data.
 */
esp_err_t test_touch_timeout_interrupt(void)
{
    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    uint32_t touch_value, smooth;

    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_TIMEOUT | TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    // Initialize and start a software filter to detect slight change of capacitance.
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
                 touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }
    /* Set timeout parameter */
    TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[0], &touch_value) );
    TEST_ESP_OK( touch_pad_timeout_set(true , touch_value * 10) );

    // Only fake push one touch pad.
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
    test_timeout_trigger_fake(touch_list[0]);
    TEST_ESP_OK( test_touch_check_ch_intr_timeout(touch_list[0]) );
    test_timeout_normal(touch_list[0]);

    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
    printf_touch_hw_read("raw  ");
    printf_touch_baseline_read("base ");
    printf_touch_smooth_read("smooth");

    int test_cnt = TEST_TOUCH_COUNT_NUM;
    while (test_cnt--) {
        test_touch_push_all();
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("push");

        /* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
        test_touch_baseline_not_update();

        test_touch_release_all();
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

TEST_CASE("Touch Sensor interrupt test (active, inactive, scan_done, timeout)", "[touch]")
{
    TEST_ESP_OK( test_touch_interrupt() );
    TEST_ESP_OK( test_touch_scan_done_interrupt() );
    TEST_ESP_OK( test_touch_timeout_interrupt() );
}

static void test_touch_measure_step(uint32_t step)
{
    /* Fake the process of debounce. */
    // printf("measure cnt %d: [ ", step);
    for (int i = 0; i < step; i++) {
        for (int j = 0; j < TEST_TOUCH_CHANNEL; j++) {
            TEST_ESP_OK( touch_pad_sw_start() );
            while (!touch_pad_meas_is_done()) ;
        }
        // printf(".");
    }
    // printf(" ]\n");
}

/*
 * Test the touch active/inactive, scan_done interrupt.
 * TEST POINT:
 * 1. Touch interrupt.
 * 2. Raw data noise.
 * 3. smooth data and baseline data.
 */
esp_err_t test_touch_filter_parameter_debounce(int deb_cnt)
{
    uint32_t touch_value;
    int test_cnt = 2;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_128,           // Test jitter and filter 1/4.
        .debounce_cnt = ((deb_cnt < 0) ? 1 : deb_cnt) ,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_OFF,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    /* Run to wait the data become stable. */
    test_touch_measure_step(20); // 2 scan loop

    /* Set the threshold. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, thresh %d", \
                 touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    while (test_cnt--) {
        test_touch_push_all();
        /* Fake the process of push debounce. */
        test_touch_measure_step(deb_cnt);       // measure n times. touch state not changed.
        TEST_ESP_ERR( ESP_FAIL, test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        test_touch_measure_step(1);   // measure n+1 times. touch state changed.
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("push");

        test_touch_release_all();
        /* Fake the process of release debounce. */
        test_touch_measure_step(deb_cnt);       // measure n times. touch state not changed.
        TEST_ESP_ERR( ESP_FAIL, test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        test_touch_measure_step(1);   // measure n+1 times. touch state changed.
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

esp_err_t test_touch_filter_parameter_neg_reset(int reset_cnt)
{
    uint32_t touch_value, base_value;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    reset_cnt = ((reset_cnt < 0) ? 10 : reset_cnt);
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = reset_cnt,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_OFF,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    /* Run to wait the data become stable. */
    test_touch_measure_step(20); // 2 scan loop

    /* Set the threshold. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, thresh %d", \
                 touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    /* 1. Fake init status is touched. */
    test_touch_push_all();
    TEST_ESP_OK( touch_pad_filter_reset_baseline(TOUCH_PAD_MAX) );
    /* Run to wait the data become stable. */
    test_touch_measure_step(20); // 2 scan loop
    printf_touch_hw_read("[raw ] reset:");
    printf_touch_baseline_read("[base] reset:");

    /* 2. Fake the touch status is released. */
    test_touch_release_all();
    /* 3. Fake measure `reset_cnt + 1` times to reset the baseline. */
    test_touch_measure_step(reset_cnt);
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
        if ((base_value - touch_value) < (base_value * TOUCH_INTR_THRESHOLD)) {
            ESP_LOGE(TAG, "neg reset cnt err");
            TEST_FAIL();
        }
    }
    printf_touch_hw_read("[raw ] neg_cnt:");
    printf_touch_baseline_read("[base] neg_cnt:");

    test_touch_measure_step(1);
    /* ESP32S2 neg reset baseline to raw data */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
        TEST_ASSERT_EQUAL_UINT32(base_value, touch_value);
    }
    printf_touch_hw_read("[raw ] neg_cnt+1:");
    printf_touch_baseline_read("[base] neg_cnt+1:");

    int test_cnt = 2;
    while (test_cnt--) {
        test_touch_push_all();
        /* Fake the process of push debounce. */
        test_touch_measure_step(filter_info.debounce_cnt + 1);
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("push");

        test_touch_release_all();
        /* Fake the process of release debounce. */
        test_touch_measure_step(filter_info.debounce_cnt + 1);
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

esp_err_t test_touch_filter_parameter_jitter(int jitter_step)
{
    uint32_t touch_value, base_value = 0;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    jitter_step = ((jitter_step < 0) ? 4 : jitter_step);
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_JITTER,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = jitter_step,       // use for jitter mode.
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
    TEST_ESP_OK( touch_pad_fsm_start() );
    /* Run to wait the data become stable. */
    test_touch_measure_step(20); // 2 scan loop

    /* Check the jitter step. */
    printf_touch_baseline_read("[smooth] t1:");
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        test_touch_measure_step(1);
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        test_press_fake(touch_list[i]);
        test_touch_measure_step(1);
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
        TEST_ASSERT_EQUAL_UINT32(jitter_step, (base_value - touch_value));
    }
    printf_touch_baseline_read("[smooth] t2:");
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        test_touch_measure_step(1);
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        test_release_fake(touch_list[i]);
        test_touch_measure_step(1);
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
        TEST_ASSERT_EQUAL_UINT32(jitter_step, (touch_value - base_value));
    }
    printf_touch_baseline_read("[smooth] t3:");

    /* Set the threshold. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        //read baseline value
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        //set interrupt threshold.
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, thresh %d", \
                 touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    int test_cnt = 2;
    while (test_cnt--) {
        test_touch_push_all();
        /* Fake the process of push debounce. */
        test_touch_measure_step(filter_info.debounce_cnt + 1);
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_smooth_read("push");

        test_touch_release_all();
        /* Fake the process of release debounce. */
        test_touch_measure_step(filter_info.debounce_cnt + 1);
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_smooth_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

TEST_CASE("Touch Sensor filter paramter test (debounce, neg_reset, jitter)", "[touch]")
{
    ESP_LOGI(TAG, "*********** touch filter debounce test ********************");
    TEST_ESP_OK( test_touch_filter_parameter_debounce(0) );
    TEST_ESP_OK( test_touch_filter_parameter_debounce(3) );
    TEST_ESP_OK( test_touch_filter_parameter_debounce(7) );

    ESP_LOGI(TAG, "*********** touch filter neg threshold reset limit test ********************");
    TEST_ESP_OK( test_touch_filter_parameter_neg_reset(1) );
    TEST_ESP_OK( test_touch_filter_parameter_neg_reset(5) );
    TEST_ESP_OK( test_touch_filter_parameter_neg_reset(15) );

    ESP_LOGI(TAG, "*********** touch filter jitter test ********************");
    TEST_ESP_OK( test_touch_filter_parameter_jitter(1) );
    TEST_ESP_OK( test_touch_filter_parameter_jitter(5) );
    TEST_ESP_OK( test_touch_filter_parameter_jitter(15) );
}

esp_err_t test_touch_denoise(uint32_t out_val[], uint32_t *denoise_val, touch_pad_denoise_grade_t grade, touch_pad_denoise_cap_t cap)
{
    uint32_t touch_value;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    ESP_LOGI(TAG, "Denoise level (%d), cap level (%d) \n", grade, cap);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    /* Denoise setting at TouchSensor 0. */
    touch_pad_denoise_t denoise = {
        /* The bits to be cancelled are determined according to the noise level. */
        .grade = (grade < 0) ? TOUCH_PAD_DENOISE_BIT4 : grade,
        .cap_level = (cap < 0) ? TOUCH_PAD_DENOISE_CAP_L4 : cap,
    };
    TEST_ESP_OK( touch_pad_denoise_set_config(&denoise) );
    TEST_ESP_OK( touch_pad_denoise_enable() );
    ESP_LOGI(TAG, "Denoise function init");
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_SW) );
    TEST_ESP_OK( touch_pad_fsm_start() );
    /* Run to wait the data become stable. */
    test_touch_measure_step(20); // 2 scan loop

    /* Set the threshold. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        if (out_val) {
            /* Output value for check. */
            out_val[i] = touch_value;
        }
    }
    printf_touch_baseline_read("Denoise");
    if (denoise_val) {
        touch_pad_denoise_read_data(denoise_val);
    }

    int test_cnt = 1;
    while (test_cnt--) {
        test_touch_push_all();
        /* Fake the process of push debounce. */
        test_touch_measure_step(filter_info.debounce_cnt + 1);
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );

        test_touch_release_all();
        /* Fake the process of release debounce. */
        test_touch_measure_step(filter_info.debounce_cnt + 1);
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

TEST_CASE("Touch Sensor denoise test (cap, level)", "[touch]")
{
    uint32_t val_1[TEST_TOUCH_CHANNEL];
    uint32_t val_2[TEST_TOUCH_CHANNEL];
    uint32_t val_3[TEST_TOUCH_CHANNEL];
    uint32_t denoise_val[TOUCH_PAD_DENOISE_CAP_MAX];

    ESP_LOGI(TAG, "*********** touch filter denoise level test ********************");
    TEST_ESP_OK( test_touch_denoise(val_1, NULL, TOUCH_PAD_DENOISE_BIT4, TOUCH_PAD_DENOISE_CAP_L0) );
    TEST_ESP_OK( test_touch_denoise(val_2, NULL, TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L0) );
    TEST_ESP_OK( test_touch_denoise(val_3, NULL, TOUCH_PAD_DENOISE_BIT12, TOUCH_PAD_DENOISE_CAP_L0) );

    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ASSERT_GREATER_OR_EQUAL(val_3[i], val_2[i]);
        TEST_ASSERT_GREATER_OR_EQUAL(val_2[i], val_1[i]);
    }

    ESP_LOGI(TAG, "*********** touch filter denoise cap level test ********************");
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[0], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L0) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[1], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L1) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[2], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L2) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[3], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L3) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[4], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L4) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[5], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L5) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[6], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L6) );
    TEST_ESP_OK( test_touch_denoise(NULL, &denoise_val[7], TOUCH_PAD_DENOISE_BIT8, TOUCH_PAD_DENOISE_CAP_L7) );

    printf("denoise read: ");
    for (int i = 0; i < TOUCH_PAD_DENOISE_CAP_MAX - 1; i++) {
        TEST_ASSERT_GREATER_OR_EQUAL(denoise_val[i], denoise_val[i + 1]);
        printf("%d ", denoise_val[i]);
    }
    printf("\n");
}

esp_err_t test_touch_waterproof(void)
{
    uint32_t touch_value;
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL);
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    /* Denoise setting at TouchSensor 0. */
    touch_pad_denoise_t denoise = {
        /* The bits to be cancelled are determined according to the noise level. */
        .grade = TOUCH_PAD_DENOISE_BIT4,
        .cap_level = TOUCH_PAD_DENOISE_CAP_L4,
    };
    TEST_ESP_OK( touch_pad_denoise_set_config(&denoise) );
    TEST_ESP_OK( touch_pad_denoise_enable() );
    ESP_LOGI(TAG, "Denoise function init");
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    /* Waterproof function */
    touch_pad_waterproof_t waterproof = {
        .guard_ring_pad = TOUCH_WATERPROOF_RING_PAD,   // If no ring pad, set 0;
        /* It depends on the number of the parasitic capacitance of the shield pad. */
        .shield_driver = TOUCH_PAD_SHIELD_DRV_L0,   //40pf
    };
    TEST_ESP_OK( touch_pad_waterproof_set_config(&waterproof) );
    TEST_ESP_OK( touch_pad_waterproof_enable() );
    ESP_LOGI(TAG, "touch pad waterproof init");
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    vTaskDelay(50 / portTICK_PERIOD_MS);

    /* Set the threshold. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
    }

    while (test_cnt--) {
        test_touch_push_all();
        vTaskDelay(20 / portTICK_PERIOD_MS);
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL - 1, TOUCH_EXCEED_TIME_MS) ); // take off shield pad
        printf_touch_hw_read("push");

        test_touch_release_all();
        vTaskDelay(20 / portTICK_PERIOD_MS);
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }
    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

TEST_CASE("Touch Sensor waterproof guard test", "[touch]")
{
    ESP_LOGI(TAG, "*********** touch filter waterproof guard test ********************");
    TEST_ESP_OK( test_touch_waterproof() );
}

esp_err_t test_touch_proximity(int meas_num)
{
    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);

    uint32_t touch_value;
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    /* Denoise setting at TouchSensor 0. */
    touch_pad_denoise_t denoise = {
        /* The bits to be cancelled are determined according to the noise level. */
        .grade = TOUCH_PAD_DENOISE_BIT4,
        .cap_level = TOUCH_PAD_DENOISE_CAP_L4,
    };
    TEST_ESP_OK( touch_pad_denoise_set_config(&denoise) );
    TEST_ESP_OK( touch_pad_denoise_enable() );
    ESP_LOGI(TAG, "Denoise function init");
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    /* Waterproof function */
    touch_pad_waterproof_t waterproof = {
        .guard_ring_pad = TOUCH_WATERPROOF_RING_PAD,// If no ring pad, set 0;
        /* It depends on the number of the parasitic capacitance of the shield pad. */
        .shield_driver = TOUCH_PAD_SHIELD_DRV_L0,   //40pf
    };
    TEST_ESP_OK( touch_pad_waterproof_set_config(&waterproof) );
    TEST_ESP_OK( touch_pad_waterproof_enable() );
    ESP_LOGI(TAG, "touch pad waterproof init");
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    vTaskDelay(50 / portTICK_PERIOD_MS);

    /* Set the threshold. */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        if (touch_list[i] == proximity_pad[0] ||
                touch_list[i] == proximity_pad[1] ||
                touch_list[i] == proximity_pad[2]) {
            /* The threshold of proximity pad is the sum of touch reading `meas_num` times */
            TEST_ESP_OK( touch_pad_set_thresh(touch_list[i],
                                              meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD)) );
            ESP_LOGI(TAG, "proximity pad [%d] base %d, thresh %d", touch_list[i], touch_value,
                     (uint32_t)(meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD)));
        } else {
            TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
            ESP_LOGI(TAG, "touch pad [%d] base %d, thresh %d", \
                     touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
        }
    }
    /* Should stop the measure, then change the config. */
    while (!touch_pad_meas_is_done());
    TEST_ESP_OK( touch_pad_fsm_stop() );
    /* Proximity function */
    TEST_ESP_OK( touch_pad_proximity_enable(proximity_pad[0], true) );
    TEST_ESP_OK( touch_pad_proximity_enable(proximity_pad[1], true) );
    TEST_ESP_OK( touch_pad_proximity_enable(proximity_pad[2], true) );
    TEST_ESP_OK( touch_pad_proximity_set_count(TOUCH_PAD_MAX, meas_num < 0 ? 16 : meas_num) );
    ESP_LOGI(TAG, "touch pad proximity init");
    TEST_ESP_OK( touch_pad_fsm_start() );

    vTaskDelay(20 / portTICK_PERIOD_MS);
    int test_cnt = TEST_TOUCH_COUNT_NUM;
    while (test_cnt--) {
        test_touch_push_all();
        vTaskDelay(20 / portTICK_PERIOD_MS);
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL - 1, TOUCH_EXCEED_TIME_MS) ); // take off shield pad
        printf_touch_hw_read("push");

        test_touch_release_all();
        vTaskDelay(20 / portTICK_PERIOD_MS);
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ESP_OK;
}

TEST_CASE("Touch Sensor proximity test", "[touch]")
{
    ESP_LOGI(TAG, "*********** touch proximity test ********************");

    TEST_ESP_OK( test_touch_proximity(5) );
    TEST_ESP_OK( test_touch_proximity(1) );
}

esp_err_t test_touch_sleep_reading_stable(touch_pad_t sleep_pad)
{
    uint32_t touch_temp = 0;
    uint32_t touch_value, smooth, ret_val;
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    // /* Denoise setting at TouchSensor 0. */
    touch_pad_denoise_t denoise = {
        /* The bits to be cancelled are determined according to the noise level. */
        .grade = TOUCH_PAD_DENOISE_BIT4,
        .cap_level = TOUCH_PAD_DENOISE_CAP_L4,
    };
    TEST_ESP_OK( touch_pad_denoise_set_config(&denoise) );
    TEST_ESP_OK( touch_pad_denoise_enable() );
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_OFF,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    TEST_ESP_OK( touch_pad_sleep_channel_enable(sleep_pad, true) );
    TEST_ESP_OK( touch_pad_sleep_channel_enable_proximity(sleep_pad, false) );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    // Initialize and start a software filter to detect slight change of capacitance.
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    /* Set threshold of touch sensor */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
                 touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    /* Sleep channel setting */
    TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
    TEST_ESP_OK( touch_pad_sleep_set_threshold(sleep_pad, touch_value * TOUCH_INTR_THRESHOLD) );
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    while (test_cnt--) {
        /* Touch reading filtered value equal to raw data. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_sleep_channel_read_data(sleep_pad, &touch_value) );
            TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_temp) );
            TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
            TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &touch_temp) );
            TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
        }
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            if (touch_temp) {
                TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
            }
            touch_temp = touch_value;
        }
        vTaskDelay(20 / portTICK_PERIOD_MS);
    }
    TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &ret_val) );

    TEST_ESP_OK( touch_pad_deinit() );

    return ret_val;
}


TEST_CASE("Touch Sensor sleep pad reading stable test", "[touch]")
{
    ESP_LOGI(TAG, "*********** touch sleep pad low power (wakeup) test ********************");
    test_touch_sleep_reading_stable(touch_list[0]);
}

/*
 * Test the touch sleep pad interrupt in normal mode.
 * TEST POINT:
 * 1. Touch sleep pad interrupt.
 * 2. sleep pad reading.
 * 3. sleep pad enable proximity.
 */
uint32_t test_touch_sleep_pad_proximity(touch_pad_t sleep_pad, bool is_proximity, uint32_t meas_num)
{
    uint32_t touch_value, smooth, ret_val;
    uint32_t measure_out;
    uint32_t proximity_cnt;
    uint32_t touch_thres;
    int test_cnt = TEST_TOUCH_COUNT_NUM;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    /* Denoise setting at TouchSensor 0. */
    touch_pad_denoise_t denoise = {
        /* The bits to be cancelled are determined according to the noise level. */
        .grade = TOUCH_PAD_DENOISE_BIT4,
        .cap_level = TOUCH_PAD_DENOISE_CAP_L4,
    };
    TEST_ESP_OK( touch_pad_denoise_set_config(&denoise) );
    TEST_ESP_OK( touch_pad_denoise_enable() );
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_OFF,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Sleep channel setting */
    TEST_ESP_OK( touch_pad_sleep_channel_enable(sleep_pad, true) );
    TEST_ESP_OK( touch_pad_sleep_channel_enable_proximity(sleep_pad, is_proximity) );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_SCAN_DONE | TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    // Initialize and start a software filter to detect slight change of capacitance.
    vTaskDelay(100 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    if (is_proximity) {
        /* Set the threshold. */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            if (touch_list[i] == sleep_pad) {
                touch_pad_sleep_channel_read_smooth(sleep_pad, &touch_value);
                touch_pad_sleep_set_threshold(sleep_pad, meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD));
                ESP_LOGI(TAG, "Sleep pad [%d] base %d, thresh %d", touch_list[i], touch_value,
                         (uint32_t)(meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD)));
            } else if (touch_list[i] == sleep_pad) {
                // TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
                touch_pad_sleep_channel_read_smooth(sleep_pad, &touch_value);
                /* The threshold of proximity pad is the sum of touch reading `meas_num` times */
                touch_pad_sleep_set_threshold(sleep_pad, meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD));
                ESP_LOGI(TAG, "proximity pad [%d] base %d, thresh %d", touch_list[i], touch_value,
                         (uint32_t)(meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD)));
            } else {
                TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
                TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
                ESP_LOGI(TAG, "touch pad [%d] base %d, thresh %d", \
                         touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
            }
        }
        /* Should stop the measure, then change the config. */
        while (!touch_pad_meas_is_done());
        TEST_ESP_OK( touch_pad_fsm_stop() );
        /* Proximity function */
        TEST_ESP_OK( touch_pad_proximity_enable(proximity_pad[0], false) );
        TEST_ESP_OK( touch_pad_proximity_enable(proximity_pad[1], false) );
        TEST_ESP_OK( touch_pad_proximity_enable(proximity_pad[2], false) );
        TEST_ESP_OK( touch_pad_proximity_enable(sleep_pad, true) );
        TEST_ESP_OK( touch_pad_proximity_set_count(TOUCH_PAD_MAX, meas_num) );
        ESP_LOGI(TAG, "touch pad proximity init");
        TEST_ESP_OK( touch_pad_fsm_start() );
        vTaskDelay(100 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
    } else {
        /* Set threshold of touch sensor */
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
            TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
            TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
            ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
                     touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
        }
        /* Sleep channel setting */
        TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &touch_value) );
        TEST_ESP_OK( touch_pad_sleep_set_threshold(sleep_pad, touch_value * TOUCH_INTR_THRESHOLD) );
        vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
    }

    TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &ret_val) );

    while (test_cnt--) {
        test_touch_push_all();
        TEST_ESP_OK( test_touch_check_ch_touched_with_proximity(TEST_TOUCH_CHANNEL, 5000) );
        printf_touch_hw_read("push");
        if (is_proximity) {
            TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
            TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
            TEST_ESP_OK( touch_pad_proximity_get_data(sleep_pad, &measure_out) );
            TEST_ESP_OK( touch_pad_sleep_channel_read_proximity_cnt(sleep_pad, &proximity_cnt) );
            TEST_ESP_OK( touch_pad_sleep_get_threshold(sleep_pad, &touch_thres) );
            printf("touch slp smooth %d, base %d, proxi %d cnt %d thres%d status 0x%x\n",
                   smooth, touch_value, measure_out, proximity_cnt,
                   touch_thres, touch_pad_get_status());
        }
        test_touch_release_all();
        TEST_ESP_OK( test_touch_check_ch_released_with_proximity(TEST_TOUCH_CHANNEL, 5000) );
        printf_touch_hw_read("release");
        if (is_proximity) {
            TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
            TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
            TEST_ESP_OK( touch_pad_proximity_get_data(sleep_pad, &measure_out) );
            TEST_ESP_OK( touch_pad_sleep_channel_read_proximity_cnt(sleep_pad, &proximity_cnt) );
            printf("touch slp smooth %d, base %d, proxi %d cnt %d status 0x%x\n",
                   smooth, touch_value, measure_out, proximity_cnt, touch_pad_get_status());
        }
    }

    TEST_ESP_OK( touch_pad_deinit() );

    return ret_val;
}

TEST_CASE("Touch Sensor sleep pad and proximity interrupt test", "[touch]")
{
    ESP_LOGI(TAG, "*********** touch sleep pad interrupt test ********************");
    test_touch_sleep_pad_proximity(touch_list[0], false, 0);
    test_touch_sleep_pad_proximity(touch_list[0], false, 0);
    test_touch_sleep_pad_proximity(touch_list[0], false, 0);

    ESP_LOGI(TAG, "*********** touch sleep pad interrupt (proximity) test ********************");
    test_touch_sleep_pad_proximity(touch_list[0], true, 1);
    test_touch_sleep_pad_proximity(touch_list[0], true, 3);
    test_touch_sleep_pad_proximity(touch_list[0], true, 5);
}

/*
 * Test the touch sleep pad interrupt in normal mode.
 * TEST POINT:
 * 1. Touch sleep pad interrupt.
 * 2. sleep pad reading.
 * 3. denoise, waterproof
 */
esp_err_t test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_pad_t sleep_pad)
{
    uint32_t touch_value, smooth, raw;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        TEST_ESP_OK( touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL) );
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    // /* Denoise setting at TouchSensor 0. */
    touch_pad_denoise_t denoise = {
        /* The bits to be cancelled are determined according to the noise level. */
        .grade = TOUCH_PAD_DENOISE_BIT4,
        .cap_level = TOUCH_PAD_DENOISE_CAP_L4,
    };
    TEST_ESP_OK( touch_pad_denoise_set_config(&denoise) );
    TEST_ESP_OK( touch_pad_denoise_disable() );
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_16,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 3,    // 0%
        .noise_thr = 0,         // 50%
        .noise_neg_thr = 0,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_OFF,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Sleep channel setting */
    TEST_ESP_OK( touch_pad_sleep_channel_enable(sleep_pad, true) );
    TEST_ESP_OK( touch_pad_sleep_channel_enable_proximity(sleep_pad, false) );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );

    // Initialize and start a software filter to detect slight change of capacitance.
    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    /* Set threshold of touch sensor */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
                 touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
    }

    /* Sleep channel setting */
    TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
    TEST_ESP_OK( touch_pad_sleep_set_threshold(sleep_pad, touch_value * TOUCH_INTR_THRESHOLD) );

    vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    test_touch_push_all();
    TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
    printf_touch_hw_read("push");
    TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
    TEST_ESP_OK( touch_pad_sleep_channel_read_data(sleep_pad, &raw) );
    TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
    printf("touch slp raw %d, smooth %d, base %d, status 0x%x\n", raw, smooth, touch_value, touch_pad_get_status());

    test_touch_release_all();
    TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
    printf_touch_hw_read("release");
    TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
    TEST_ESP_OK( touch_pad_sleep_channel_read_data(sleep_pad, &raw) );
    TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
    printf("touch slp raw %d, smooth %d, base %d, status 0x%x\n", raw, smooth, touch_value, touch_pad_get_status());

    return ESP_OK;
}

#include <sys/time.h>
#include "esp_sleep.h"

static RTC_DATA_ATTR struct timeval sleep_enter_time;

static void test_deep_sleep_init(void)
{
    struct timeval now;
    gettimeofday(&now, NULL);
    int sleep_time_ms = (now.tv_sec - sleep_enter_time.tv_sec) * 1000 + (now.tv_usec - sleep_enter_time.tv_usec) / 1000;
    printf("RTC_CNTL_SLP_WAKEUP_CAUSE_REG %x\n", REG_READ(RTC_CNTL_SLP_WAKEUP_CAUSE_REG));
    switch (esp_sleep_get_wakeup_cause()) {
    case ESP_SLEEP_WAKEUP_EXT1: {
        uint64_t wakeup_pin_mask = esp_sleep_get_ext1_wakeup_status();
        if (wakeup_pin_mask != 0) {
            int pin = __builtin_ffsll(wakeup_pin_mask) - 1;
            printf("Wake up from GPIO %d\n", pin);
        } else {
            printf("Wake up from GPIO\n");
        }
        break;
    }
    case ESP_SLEEP_WAKEUP_TIMER: {
        printf("Wake up from timer. Time spent in deep sleep: %dms\n", sleep_time_ms);
        break;
    }
    case ESP_SLEEP_WAKEUP_TOUCHPAD: {
        printf("Wake up from touch on pad %d\n", esp_sleep_get_touchpad_wakeup_status());
        break;
    }
    case ESP_SLEEP_WAKEUP_UNDEFINED:
    default: {
        printf("Not a deep sleep reset\n");
        ESP_LOGI(TAG, "*********** touch sleep pad wakeup test ********************");
        /* Sleep pad should be init once. */
        test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_list[0]);
    }
    }

    vTaskDelay(100 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);

    printf("Enabling touch pad wakeup\n");
    esp_sleep_enable_touchpad_wakeup();

    printf("Entering deep sleep\n");
    gettimeofday(&sleep_enter_time, NULL);
}

TEST_CASE("Touch Sensor sleep pad wakeup deep sleep test", "[touch][ignore]")
{
    test_deep_sleep_init();

    /* Change the work duty of touch sensor to reduce current. */
    touch_pad_set_meas_time(100, TOUCH_PAD_MEASURE_CYCLE_DEFAULT);

    /* Close PD current in deep sleep. */
    RTCCNTL.bias_conf.pd_cur_deep_slp = 1;
    RTCCNTL.bias_conf.pd_cur_monitor = 1;
    RTCCNTL.bias_conf.bias_sleep_deep_slp = 1;
    RTCCNTL.bias_conf.bias_sleep_monitor = 1;

    esp_deep_sleep_start();
}

#include "touch_scope.h"
/*
 * 0: 10 channels raw/smooth/baseline data debug.
 * 1: 5  channges smooth + baseline data debug.
 * 2: 1  channels filter data.
 */
#define SCOPE_DEBUG_TYPE            2
#define TOUCH_THRESHOLD             0.5
#define TOUCH_SHELD_PAD            (1)
#define SCOPE_DEBUG_CHANNEL_MAX    (10)
#define SCOPE_DEBUG_ENABLE         (0)
#define SCOPE_UART_BUADRATE        (256000)
#define SCOPE_DEBUG_FREQ_MS        (50)

void test_touch_slope_debug(int pad_num)
{
    touch_event_t evt;
    uint32_t touch_value, smooth;

    ESP_LOGI(TAG, "  >> %s <<  \n", __func__);
    if (que_touch == NULL) {
        que_touch = xQueueCreate(TEST_TOUCH_CHANNEL, sizeof(touch_event_t));
        /* Should register once. */
        touch_pad_isr_register(test_touch_intr_cb, NULL, TOUCH_PAD_INTR_MASK_ALL);
    } else {
        xQueueReset(que_touch);
    }
    TEST_ESP_OK( touch_pad_init() );
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_config(touch_list[i]) );
    }
    touch_filter_config_t filter_info = {
        .mode = TOUCH_PAD_FILTER_IIR_32,           // Test jitter and filter 1/4.
        .debounce_cnt = 1,      // 1 time count.
        .hysteresis_thr = 2,    // 6.25%
        .noise_thr = 3,         // 50%
        .noise_neg_thr = 3,     // 50%
        .neg_noise_limit = 10,  // 10 time count.
        .jitter_step = 4,       // use for jitter mode.
        .smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
    };
    TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
    TEST_ESP_OK( touch_pad_filter_enable() );
    /* Register touch interrupt ISR, enable intr type. */
    TEST_ESP_OK( touch_pad_intr_enable(TOUCH_PAD_INTR_MASK_ACTIVE | TOUCH_PAD_INTR_MASK_INACTIVE) );
    TEST_ESP_OK( touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER) );
    TEST_ESP_OK( touch_pad_fsm_start() );
    /* Waterproof function */
    touch_pad_waterproof_t waterproof = {
        .guard_ring_pad = 0,   // If no ring pad, set 0;
        /* It depends on the number of the parasitic capacitance of the shield pad. */
        .shield_driver = TOUCH_PAD_SHIELD_DRV_L2,   //40pf
    };
    TEST_ESP_OK( touch_pad_waterproof_set_config(&waterproof) );
    TEST_ESP_OK( touch_pad_waterproof_enable() );
    ESP_LOGI(TAG, "touch pad waterproof init");

    // Initialize and start a software filter to detect slight change of capacitance.
    vTaskDelay(50 / portTICK_PERIOD_MS);

    /* Set threshold of touch sensor */
    for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
        TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
        TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
        TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_THRESHOLD) );
        ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d", \
                 touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_THRESHOLD));
    }

    float scope_temp[SCOPE_DEBUG_CHANNEL_MAX] = {0};  // max scope channel is 10.
    uint32_t scope_data[SCOPE_DEBUG_CHANNEL_MAX] = {0};  // max scope channel is 10.
    test_tp_scope_debug_init(0, -1, -1, SCOPE_UART_BUADRATE);

#if SCOPE_DEBUG_TYPE == 0
    while (1) {
        for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
            touch_pad_read_raw_data(touch_list[i], &scope_data[i]);
            // touch_pad_filter_read_smooth(touch_list[i], &scope_data[i]);
            // touch_pad_filter_read_baseline(touch_list[i], &scope_data[i]);
            scope_temp[i] = scope_data[i];
        }
        test_tp_print_to_scope(scope_temp, TEST_TOUCH_CHANNEL);
        vTaskDelay(SCOPE_DEBUG_FREQ_MS / portTICK_RATE_MS);
    }
#elif SCOPE_DEBUG_TYPE == 1
    while (1) {
        int cnt = 0;
        for (int i = 0; i < 5; i++) {
            touch_pad_read_raw_data(touch_list[i], &scope_data[i]);
            scope_temp[i] = scope_data[i];
        }
        for (int i = 0; i < 5; i++) {
            touch_pad_filter_read_smooth(touch_list[i], &scope_data[i]);
            scope_temp[i + SCOPE_DEBUG_CHANNEL_MAX / 2] = scope_data[i];
        }
        test_tp_print_to_scope(scope_temp, SCOPE_DEBUG_CHANNEL_MAX);
        vTaskDelay(SCOPE_DEBUG_FREQ_MS / portTICK_RATE_MS);
    }
#elif SCOPE_DEBUG_TYPE == 2
    uint32_t status;
    touch_pad_filter_read_baseline(pad_num, &status);
    while (1) {
        xQueueReceive(que_touch, &evt, SCOPE_DEBUG_FREQ_MS / portTICK_RATE_MS);
        //read filtered value
        touch_pad_read_raw_data(pad_num, &scope_data[0]);
        touch_pad_filter_read_baseline(pad_num, &scope_data[1]);
        touch_pad_get_thresh(pad_num, &scope_data[2]);
        touch_pad_filter_read_smooth(pad_num, &scope_data[8]);
        // raw data
        scope_temp[0] = scope_data[0];
        // baseline
        scope_temp[1] = scope_data[1];
        // smooth data
        scope_temp[8] = scope_data[8];
        // noise neg thr
        scope_temp[2] = scope_temp[1] - scope_data[2] * 0.5;
        // noise thr
        scope_temp[3] = scope_temp[1] + scope_data[2] * 0.5;
        // touch thr
        scope_temp[4] = scope_temp[1] + scope_data[2];
        // hysteresis_thr thr
        scope_temp[5] = scope_temp[4] - scope_data[2] * 0.0625;
        // hysteresis_thr thr
        scope_temp[6] = scope_temp[4] + scope_data[2] * 0.0625;
        // touch status
        if (touch_pad_get_status() & BIT(pad_num)) {
            scope_temp[7] = status + 100;
        } else {
            scope_temp[7] = status - 100;  //0:release; 1:push;
        }
        test_tp_print_to_scope(scope_temp, 9);
    }
#elif SCOPE_DEBUG_TYPE == 3
    while (1) {
        test_touch_push_all();
        TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("push");

        /* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
        test_touch_baseline_not_update();

        test_touch_release_all();
        TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
        printf_touch_hw_read("release");
    }
#endif
    TEST_ESP_OK( touch_pad_deinit() );
}

#endif // !DISABLED_FOR_TARGETS(ESP8266, ESP32)