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feat(touch_sens): support touch sensor on esp32s31

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This commit is contained in:
Hu Rui
2026-04-15 14:12:48 +08:00
parent 54ecf4c09f
commit b9d3b161e4
22 changed files with 1401 additions and 1118 deletions
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components/esp_driver_touch_sens/test_apps/touch_sens/README.md
+2 -2
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@@ -1,3 +1,3 @@
| Supported Targets | ESP32 | ESP32-H4 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
| ----------------- | ----- | -------- | -------- | -------- | -------- |
| Supported Targets | ESP32 | ESP32-H4 | ESP32-P4 | ESP32-S2 | ESP32-S3 | ESP32-S31 |
| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- |
components/esp_driver_touch_sens/test_apps/touch_sens/main/test_touch_sens_common.cpp
+13 -4
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -151,7 +151,16 @@ static bool TEST_TCH_IRAM_ATTR s_test_touch_on_inactive_callback(touch_sensor_ha
static void s_test_touch_simulate_touch(touch_sensor_handle_t touch, touch_channel_handle_t touch_chan, bool active)
{
#if SOC_TOUCH_SENSOR_VERSION <= 2
#if CONFIG_IDF_TARGET_ESP32S31
/* ESP32-S31 has no internal capacitor, emulate touch by changing charging cycles. */
for (int i = 0; i < TOUCH_SAMPLE_CFG_NUM; i++) {
uint32_t charge_times = s_sample_cfg[i].charge_times;
if (active) {
charge_times += charge_times >> 1; // 1.5x
}
touch_ll_set_charge_times(i, charge_times);
}
#elif SOC_TOUCH_SENSOR_VERSION <= 2
touch_chan_info_t chan_info = {};
touch_sensor_get_channel_info(touch_chan, &chan_info);
touch_ll_set_charge_speed(chan_info.chan_id, active ? TOUCH_CHARGE_SPEED_4 : TOUCH_CHARGE_SPEED_7);
@@ -186,10 +195,10 @@ TEST_CASE("touch_sens_active_inactive_test", "[touch]")
touch_sensor_filter_config_t filter_cfg = TOUCH_SENSOR_DEFAULT_FILTER_CONFIG();
TEST_ESP_OK(touch_sensor_config_filter(touch, &filter_cfg));
TEST_ESP_OK(touch_sensor_new_channel(touch, TOUCH_MIN_CHAN_ID, &s_chan_cfg, &touch_chan));
#if SOC_TOUCH_SENSOR_VERSION == 3
#if SOC_TOUCH_SENSOR_VERSION == 3 && !CONFIG_IDF_TARGET_ESP32S31
/* Connect the touch channels to the internal capacitor */
touch_ll_enable_internal_capacitor(true);
#endif // SOC_TOUCH_SENSOR_VERSION == 3
#endif
s_test_touch_do_initial_scanning(touch, 3);