e9bf9bc691
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com> Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
#pragma once
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/core/component.h"
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#include "esphome/core/hal.h"
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#include "esphome/core/helpers.h"
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#include <cinttypes>
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namespace esphome {
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namespace pulse_meter {
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class PulseMeterSensor : public sensor::Sensor, public Component {
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public:
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enum InternalFilterMode {
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FILTER_EDGE = 0,
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FILTER_PULSE,
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};
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void set_pin(InternalGPIOPin *pin) { this->pin_ = pin; }
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void set_filter_us(uint32_t filter) { this->filter_us_ = filter; }
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void set_timeout_us(uint32_t timeout) { this->timeout_us_ = timeout; }
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void set_total_sensor(sensor::Sensor *sensor) { this->total_sensor_ = sensor; }
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void set_filter_mode(InternalFilterMode mode) { this->filter_mode_ = mode; }
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void set_total_pulses(uint32_t pulses);
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void setup() override;
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void loop() override;
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void dump_config() override;
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protected:
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static void edge_intr(PulseMeterSensor *sensor);
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static void pulse_intr(PulseMeterSensor *sensor);
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InternalGPIOPin *pin_{nullptr};
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uint32_t filter_us_ = 0;
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uint32_t timeout_us_ = 1000000UL * 60UL * 5UL;
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sensor::Sensor *total_sensor_{nullptr};
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InternalFilterMode filter_mode_{FILTER_EDGE};
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// Variables used in the loop
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enum class MeterState { INITIAL, RUNNING, TIMED_OUT };
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MeterState meter_state_ = MeterState::INITIAL;
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bool peeked_edge_ = false;
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uint32_t total_pulses_ = 0;
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uint32_t last_processed_edge_us_ = 0;
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// This struct and variable are used to pass data between the ISR and loop.
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// The data from state_ is read and then count_ in state_ is reset in each loop.
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// This must be done while guarded by an InterruptLock. Use this variable to send data
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// from the ISR to the loop not the other way around (except for resetting count_).
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struct State {
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uint32_t last_detected_edge_us_ = 0;
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uint32_t last_rising_edge_us_ = 0;
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uint32_t count_ = 0;
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};
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volatile State state_{};
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// Only use the following variables in the ISR or while guarded by an InterruptLock
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ISRInternalGPIOPin isr_pin_;
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/// The last pin value seen
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bool last_pin_val_ = false;
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/// Filter state for edge mode
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struct EdgeState {
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uint32_t last_sent_edge_us_ = 0;
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};
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EdgeState edge_state_{};
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/// Filter state for pulse mode
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struct PulseState {
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uint32_t last_intr_ = 0;
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bool latched_ = false;
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};
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PulseState pulse_state_{};
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};
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} // namespace pulse_meter
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} // namespace esphome
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