diff --git a/esphome/components/remote_transmitter/remote_transmitter.h b/esphome/components/remote_transmitter/remote_transmitter.h index aa1f54911d..b5d8e8d83f 100644 --- a/esphome/components/remote_transmitter/remote_transmitter.h +++ b/esphome/components/remote_transmitter/remote_transmitter.h @@ -12,6 +12,25 @@ namespace esphome { namespace remote_transmitter { +#ifdef USE_ESP32 +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 1) +// IDF version 5.5.1 and above is required because of a bug in +// the RMT encoder: https://github.com/espressif/esp-idf/issues/17244 +typedef union { // NOLINT(modernize-use-using) + struct { + uint16_t duration : 15; + uint16_t level : 1; + }; + uint16_t val; +} rmt_symbol_half_t; + +struct RemoteTransmitterComponentStore { + uint32_t times{0}; + uint32_t index{0}; +}; +#endif +#endif + class RemoteTransmitterComponent : public remote_base::RemoteTransmitterBase, public Component #ifdef USE_ESP32 @@ -56,9 +75,14 @@ class RemoteTransmitterComponent : public remote_base::RemoteTransmitterBase, #ifdef USE_ESP32 void configure_rmt_(); +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 1) + RemoteTransmitterComponentStore store_{}; + std::vector rmt_temp_; +#else + std::vector rmt_temp_; +#endif uint32_t current_carrier_frequency_{38000}; bool initialized_{false}; - std::vector rmt_temp_; bool with_dma_{false}; bool eot_level_{false}; rmt_channel_handle_t channel_{NULL}; diff --git a/esphome/components/remote_transmitter/remote_transmitter_esp32.cpp b/esphome/components/remote_transmitter/remote_transmitter_esp32.cpp index 119aa81e7e..27bbf3c210 100644 --- a/esphome/components/remote_transmitter/remote_transmitter_esp32.cpp +++ b/esphome/components/remote_transmitter/remote_transmitter_esp32.cpp @@ -10,6 +10,46 @@ namespace remote_transmitter { static const char *const TAG = "remote_transmitter"; +// Maximum RMT symbol duration (15-bit field) +static constexpr uint32_t RMT_SYMBOL_DURATION_MAX = 0x7FFF; + +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 1) +static size_t IRAM_ATTR HOT encoder_callback(const void *data, size_t size, size_t written, size_t free, + rmt_symbol_word_t *symbols, bool *done, void *arg) { + auto *store = static_cast(arg); + const auto *encoded = static_cast(data); + size_t length = size / sizeof(rmt_symbol_half_t); + size_t count = 0; + + // copy symbols + for (size_t i = 0; i < free; i++) { + uint16_t sym_0 = encoded[store->index++].val; + if (store->index >= length) { + store->index = 0; + store->times--; + if (store->times == 0) { + *done = true; + symbols[count++].val = sym_0; + return count; + } + } + uint16_t sym_1 = encoded[store->index++].val; + if (store->index >= length) { + store->index = 0; + store->times--; + if (store->times == 0) { + *done = true; + symbols[count++].val = sym_0 | (sym_1 << 16); + return count; + } + } + symbols[count++].val = sym_0 | (sym_1 << 16); + } + *done = false; + return count; +} +#endif + void RemoteTransmitterComponent::setup() { this->inverted_ = this->pin_->is_inverted(); this->configure_rmt_(); @@ -34,6 +74,17 @@ void RemoteTransmitterComponent::dump_config() { } void RemoteTransmitterComponent::digital_write(bool value) { +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 1) + rmt_symbol_half_t symbol = { + .duration = 1, + .level = value, + }; + rmt_transmit_config_t config; + memset(&config, 0, sizeof(config)); + config.flags.eot_level = value; + this->store_.times = 1; + this->store_.index = 0; +#else rmt_symbol_word_t symbol = { .duration0 = 1, .level0 = value, @@ -42,8 +93,8 @@ void RemoteTransmitterComponent::digital_write(bool value) { }; rmt_transmit_config_t config; memset(&config, 0, sizeof(config)); - config.loop_count = 0; config.flags.eot_level = value; +#endif esp_err_t error = rmt_transmit(this->channel_, this->encoder_, &symbol, sizeof(symbol), &config); if (error != ESP_OK) { ESP_LOGW(TAG, "rmt_transmit failed: %s", esp_err_to_name(error)); @@ -90,6 +141,20 @@ void RemoteTransmitterComponent::configure_rmt_() { gpio_pullup_dis(gpio_num_t(this->pin_->get_pin())); } +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 1) + rmt_simple_encoder_config_t encoder; + memset(&encoder, 0, sizeof(encoder)); + encoder.callback = encoder_callback; + encoder.arg = &this->store_; + encoder.min_chunk_size = 1; + error = rmt_new_simple_encoder(&encoder, &this->encoder_); + if (error != ESP_OK) { + this->error_code_ = error; + this->error_string_ = "in rmt_new_simple_encoder"; + this->mark_failed(); + return; + } +#else rmt_copy_encoder_config_t encoder; memset(&encoder, 0, sizeof(encoder)); error = rmt_new_copy_encoder(&encoder, &this->encoder_); @@ -99,6 +164,7 @@ void RemoteTransmitterComponent::configure_rmt_() { this->mark_failed(); return; } +#endif error = rmt_enable(this->channel_); if (error != ESP_OK) { @@ -130,6 +196,79 @@ void RemoteTransmitterComponent::configure_rmt_() { } } +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 5, 1) +void RemoteTransmitterComponent::send_internal(uint32_t send_times, uint32_t send_wait) { + if (this->is_failed()) { + return; + } + + if (this->current_carrier_frequency_ != this->temp_.get_carrier_frequency()) { + this->current_carrier_frequency_ = this->temp_.get_carrier_frequency(); + this->configure_rmt_(); + } + + this->rmt_temp_.clear(); + this->rmt_temp_.reserve(this->temp_.get_data().size() + 1); + + // encode any delay at the start of the buffer to simplify the encoder callback + // this will be skipped the first time around + send_wait = this->from_microseconds_(static_cast(send_wait)); + while (send_wait > 0) { + int32_t duration = std::min(send_wait, uint32_t(RMT_SYMBOL_DURATION_MAX)); + this->rmt_temp_.push_back({ + .duration = static_cast(duration), + .level = static_cast(this->eot_level_), + }); + send_wait -= duration; + } + + // encode data + size_t offset = this->rmt_temp_.size(); + for (int32_t value : this->temp_.get_data()) { + bool level = value >= 0; + if (!level) { + value = -value; + } + value = this->from_microseconds_(static_cast(value)); + while (value > 0) { + int32_t duration = std::min(value, int32_t(RMT_SYMBOL_DURATION_MAX)); + this->rmt_temp_.push_back({ + .duration = static_cast(duration), + .level = static_cast(level ^ this->inverted_), + }); + value -= duration; + } + } + + if ((this->rmt_temp_.data() == nullptr) || this->rmt_temp_.size() <= offset) { + ESP_LOGE(TAG, "Empty data"); + return; + } + + this->transmit_trigger_->trigger(); + + rmt_transmit_config_t config; + memset(&config, 0, sizeof(config)); + config.flags.eot_level = this->eot_level_; + this->store_.times = send_times; + this->store_.index = offset; + esp_err_t error = rmt_transmit(this->channel_, this->encoder_, this->rmt_temp_.data(), + this->rmt_temp_.size() * sizeof(rmt_symbol_half_t), &config); + if (error != ESP_OK) { + ESP_LOGW(TAG, "rmt_transmit failed: %s", esp_err_to_name(error)); + this->status_set_warning(); + } else { + this->status_clear_warning(); + } + error = rmt_tx_wait_all_done(this->channel_, -1); + if (error != ESP_OK) { + ESP_LOGW(TAG, "rmt_tx_wait_all_done failed: %s", esp_err_to_name(error)); + this->status_set_warning(); + } + + this->complete_trigger_->trigger(); +} +#else void RemoteTransmitterComponent::send_internal(uint32_t send_times, uint32_t send_wait) { if (this->is_failed()) return; @@ -151,7 +290,7 @@ void RemoteTransmitterComponent::send_internal(uint32_t send_times, uint32_t sen val = this->from_microseconds_(static_cast(val)); do { - int32_t item = std::min(val, int32_t(32767)); + int32_t item = std::min(val, int32_t(RMT_SYMBOL_DURATION_MAX)); val -= item; if (rmt_i % 2 == 0) { @@ -180,7 +319,6 @@ void RemoteTransmitterComponent::send_internal(uint32_t send_times, uint32_t sen for (uint32_t i = 0; i < send_times; i++) { rmt_transmit_config_t config; memset(&config, 0, sizeof(config)); - config.loop_count = 0; config.flags.eot_level = this->eot_level_; esp_err_t error = rmt_transmit(this->channel_, this->encoder_, this->rmt_temp_.data(), this->rmt_temp_.size() * sizeof(rmt_symbol_word_t), &config); @@ -200,6 +338,7 @@ void RemoteTransmitterComponent::send_internal(uint32_t send_times, uint32_t sen } this->complete_trigger_->trigger(); } +#endif } // namespace remote_transmitter } // namespace esphome