99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 microDev
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "shared-bindings/alarm/touch/TouchAlarm.h"
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#include "shared-bindings/microcontroller/__init__.h"
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#include "peripherals/touch.h"
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#include "esp_sleep.h"
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void common_hal_alarm_touch_touchalarm_construct(alarm_touch_touchalarm_obj_t *self, const mcu_pin_obj_t *pin) {
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if (pin->touch_channel == TOUCH_PAD_MAX) {
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mp_raise_ValueError(translate("Invalid pin"));
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}
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claim_pin(pin);
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self->pin = pin;
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}
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mp_obj_t alarm_touch_touchalarm_get_wakeup_alarm(size_t n_alarms, const mp_obj_t *alarms) {
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// First, check to see if we match any given alarms.
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for (size_t i = 0; i < n_alarms; i++) {
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if (MP_OBJ_IS_TYPE(alarms[i], &alarm_touch_touchalarm_type)) {
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return alarms[i];
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}
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}
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gpio_num_t pin_number = esp_sleep_get_touchpad_wakeup_status();
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alarm_touch_touchalarm_obj_t *alarm = m_new_obj(alarm_touch_touchalarm_obj_t);
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alarm->base.type = &alarm_touch_touchalarm_type;
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alarm->pin = NULL;
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// Map the pin number back to a pin object.
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for (size_t i = 0; i < mcu_pin_globals.map.used; i++) {
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const mcu_pin_obj_t* pin_obj = MP_OBJ_TO_PTR(mcu_pin_globals.map.table[i].value);
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if (pin_obj->number == pin_number) {
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alarm->pin = mcu_pin_globals.map.table[i].value;
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break;
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}
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}
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return alarm;
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}
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static touch_pad_t touch_channel = TOUCH_PAD_MAX;
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void alarm_touch_touchalarm_set_alarm(alarm_touch_touchalarm_obj_t *self) {
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touch_channel = (touch_pad_t)self->pin->number;
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esp_sleep_enable_touchpad_wakeup();
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esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
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}
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void alarm_touch_touchalarm_prepare_for_deep_sleep(void) {
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// intialize touchpad
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peripherals_touch_init(touch_channel);
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// configure touchpad for sleep
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touch_pad_sleep_channel_enable(touch_channel, true);
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touch_pad_sleep_channel_enable_proximity(touch_channel, false);
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// wait for touch data to reset
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mp_hal_delay_ms(10);
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uint32_t touch_value;
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touch_pad_sleep_channel_read_smooth(touch_channel, &touch_value);
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touch_pad_sleep_set_threshold(touch_channel, touch_value * 0.1); //10%
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}
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bool alarm_touch_touchalarm_woke_us_up(void) {
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return false;
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}
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void alarm_touch_touchalarm_reset(void) {
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touch_channel = TOUCH_PAD_MAX;
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}
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