mirror of https://github.com/esphome/esphome.git
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
#include "remote_transmitter.h"
|
|
#include "esphome/core/log.h"
|
|
#include "esphome/core/application.h"
|
|
|
|
#ifdef USE_LIBRETINY
|
|
|
|
namespace esphome {
|
|
namespace remote_transmitter {
|
|
|
|
static const char *const TAG = "remote_transmitter";
|
|
|
|
void RemoteTransmitterComponent::setup() {
|
|
this->pin_->setup();
|
|
this->pin_->digital_write(false);
|
|
}
|
|
|
|
void RemoteTransmitterComponent::dump_config() {
|
|
ESP_LOGCONFIG(TAG, "Remote Transmitter...");
|
|
ESP_LOGCONFIG(TAG, " Carrier Duty: %u%%", this->carrier_duty_percent_);
|
|
LOG_PIN(" Pin: ", this->pin_);
|
|
}
|
|
|
|
void RemoteTransmitterComponent::calculate_on_off_time_(uint32_t carrier_frequency, uint32_t *on_time_period,
|
|
uint32_t *off_time_period) {
|
|
if (carrier_frequency == 0) {
|
|
*on_time_period = 0;
|
|
*off_time_period = 0;
|
|
return;
|
|
}
|
|
uint32_t period = (1000000UL + carrier_frequency / 2) / carrier_frequency; // round(1000000/freq)
|
|
period = std::max(uint32_t(1), period);
|
|
*on_time_period = (period * this->carrier_duty_percent_) / 100;
|
|
*off_time_period = period - *on_time_period;
|
|
}
|
|
|
|
void RemoteTransmitterComponent::await_target_time_() {
|
|
const uint32_t current_time = micros();
|
|
if (this->target_time_ == 0) {
|
|
this->target_time_ = current_time;
|
|
} else {
|
|
while (this->target_time_ > micros()) {
|
|
// busy loop that ensures micros is constantly called
|
|
}
|
|
}
|
|
}
|
|
|
|
void RemoteTransmitterComponent::mark_(uint32_t on_time, uint32_t off_time, uint32_t usec) {
|
|
this->await_target_time_();
|
|
this->pin_->digital_write(true);
|
|
|
|
const uint32_t target = this->target_time_ + usec;
|
|
if (this->carrier_duty_percent_ < 100 && (on_time > 0 || off_time > 0)) {
|
|
while (true) { // Modulate with carrier frequency
|
|
this->target_time_ += on_time;
|
|
if (this->target_time_ >= target)
|
|
break;
|
|
this->await_target_time_();
|
|
this->pin_->digital_write(false);
|
|
|
|
this->target_time_ += off_time;
|
|
if (this->target_time_ >= target)
|
|
break;
|
|
this->await_target_time_();
|
|
this->pin_->digital_write(true);
|
|
}
|
|
}
|
|
this->target_time_ = target;
|
|
}
|
|
|
|
void RemoteTransmitterComponent::space_(uint32_t usec) {
|
|
this->await_target_time_();
|
|
this->pin_->digital_write(false);
|
|
this->target_time_ += usec;
|
|
}
|
|
|
|
void RemoteTransmitterComponent::send_internal(uint32_t send_times, uint32_t send_wait) {
|
|
ESP_LOGD(TAG, "Sending remote code...");
|
|
uint32_t on_time, off_time;
|
|
this->calculate_on_off_time_(this->temp_.get_carrier_frequency(), &on_time, &off_time);
|
|
this->target_time_ = 0;
|
|
for (uint32_t i = 0; i < send_times; i++) {
|
|
InterruptLock lock;
|
|
for (int32_t item : this->temp_.get_data()) {
|
|
if (item > 0) {
|
|
const auto length = uint32_t(item);
|
|
this->mark_(on_time, off_time, length);
|
|
} else {
|
|
const auto length = uint32_t(-item);
|
|
this->space_(length);
|
|
}
|
|
App.feed_wdt();
|
|
}
|
|
this->await_target_time_(); // wait for duration of last pulse
|
|
this->pin_->digital_write(false);
|
|
|
|
if (i + 1 < send_times)
|
|
this->target_time_ += send_wait;
|
|
}
|
|
}
|
|
|
|
} // namespace remote_transmitter
|
|
} // namespace esphome
|
|
|
|
#endif
|