rp2040_pwm.h

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#pragma once
 
#ifdef USE_RP2040
 
#include "esphome/components/output/float_output.h"
#include "esphome/core/automation.h"
#include "esphome/core/component.h"
#include "esphome/core/hal.h"
 
namespace esphome {
namespace rp2040_pwm {
 
class RP2040PWM : public output::FloatOutput, public Component {
 public:
  void set_pin(InternalGPIOPin *pin) { pin_ = pin; }
  void set_frequency(float frequency) { this->frequency_ = frequency; }
  void update_frequency(float frequency) override {
    this->set_frequency(frequency);
    this->frequency_changed_ = true;
    this->write_state(this->last_output_);
  }
 
  void setup() override;
  void dump_config() override;
  float get_setup_priority() const override { return setup_priority::HARDWARE; }
 
 protected:
  void write_state(float state) override;
 
  void setup_pwm_();
 
  InternalGPIOPin *pin_;
  float frequency_{1000.0};
  uint16_t wrap_{65535};
  float last_output_{0.0};
  bool frequency_changed_{false};
};
 
template<typename... Ts> class SetFrequencyAction : public Action<Ts...> {
 public:
  SetFrequencyAction(RP2040PWM *parent) : parent_(parent) {}
  TEMPLATABLE_VALUE(float, frequency);
 
  void play(Ts... x) {
    float freq = this->frequency_.value(x...);
    this->parent_->update_frequency(freq);
  }
 
  RP2040PWM *parent_;
};
 
}  // namespace rp2040_pwm
}  // namespace esphome
 
#endif  // USE_RP2040