#pragma once
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#include "common.h"
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#include "esphome/core/component.h"
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#include "esphome/core/esphal.h"
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#include "esphome/components/i2c/i2c.h"
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namespace esphome {
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namespace yeelight {
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namespace bs2 {
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class FrontPanelHAL : public Component, public i2c::I2CDevice {
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public:
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void set_trigger_pin(GPIOPin *pin) { i2c_trigger_pin_ = pin; }
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void setup() {
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ESP_LOGCONFIG(TAG, "Setting up I2C trigger pin interrupt...");
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this->i2c_trigger_pin_->setup();
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this->i2c_trigger_pin_->attach_interrupt(
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FrontPanelHAL::isr, this, FALLING);
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}
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void dump_config() {
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ESP_LOGCONFIG(TAG, "I2C");
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LOG_PIN(" Interrupt pin: ", this->i2c_trigger_pin_);
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}
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void loop() {
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if (this->queue_length > 0) {
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this->queue_length--;
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ESP_LOGD(TAG, "EVENT!");
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}
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}
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protected:
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// The GPIO pin that is used by the front panel to notify the ESP that
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// a touch/release event can be read using I2C.
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GPIOPin *i2c_trigger_pin_;
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// The ISR that is used for handling event interrupts.
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static void isr(FrontPanelHAL *store);
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// The number of unhandled event interrupts.
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volatile int queue_length = 0;
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};
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/**
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* This ISR is used to handle IRQ triggers from the front panel.
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*
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* The front panel pulls the trigger pin low when a new event
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* is available. All we do here to handle the interrupt, is
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* increment a simple queue length counter. Reading the event
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* from the I2C bus will be handled in the main loop, based
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* on this counter.
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*/
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void ICACHE_RAM_ATTR HOT FrontPanelHAL::isr(FrontPanelHAL *store) {
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store->queue_length++;
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}
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} // namespace bs2
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} // namespace yeelight
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} // namespace esphome
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