Merge branch 'rf_bridge_batch_read' into integration_batch_read

The ack polling loop has a tight timing requirement with
delay_microseconds_safe(1450) between iterations. Snapshotting
available() once could leave partial ack response bytes unread
until after the delay, potentially breaking cold boot timing
on some ld2420 units. Keep batch reads only in loop().

.clang-tidy.hash

@@ -1 +1 @@
-ce05c28e9dc0b12c4f6e7454986ffea5123ac974a949da841be698c535f2083e
+37ec8d5a343c8d0a485fd2118cbdabcbccd7b9bca197e4a392be75087974dced

.github/actions/build-image/action.yaml

@@ -47,7 +47,7 @@ runs:
 
     - name: Build and push to ghcr by digest
       id: build-ghcr
-      uses: docker/build-push-action@601a80b39c9405e50806ae38af30926f9d957c47 # v6.19.1
+      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
       env:
         DOCKER_BUILD_SUMMARY: false
         DOCKER_BUILD_RECORD_UPLOAD: false
@@ -73,7 +73,7 @@ runs:
 
     - name: Build and push to dockerhub by digest
       id: build-dockerhub
-      uses: docker/build-push-action@601a80b39c9405e50806ae38af30926f9d957c47 # v6.19.1
+      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
       env:
         DOCKER_BUILD_SUMMARY: false
         DOCKER_BUILD_RECORD_UPLOAD: false

.github/workflows/ci.yml

@@ -115,7 +115,6 @@ jobs:
         python-version:
           - "3.11"
           - "3.13"
-          - "3.14"
         os:
           - ubuntu-latest
           - macOS-latest

docker/Dockerfile

@@ -23,7 +23,7 @@ RUN if command -v apk > /dev/null; then \
 
 ENV PIP_DISABLE_PIP_VERSION_CHECK=1
 
-RUN pip install --no-cache-dir -U pip uv==0.10.1
+RUN pip install --no-cache-dir -U pip uv==0.6.14
 
 COPY requirements.txt /
 

esphome/components/api/api.proto

@@ -1155,11 +1155,9 @@ enum WaterHeaterCommandHasField {
   WATER_HEATER_COMMAND_HAS_NONE = 0;
   WATER_HEATER_COMMAND_HAS_MODE = 1;
   WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE = 2;
-  WATER_HEATER_COMMAND_HAS_STATE = 4 [deprecated=true];
+  WATER_HEATER_COMMAND_HAS_STATE = 4;
   WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_LOW = 8;
   WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_HIGH = 16;
-  WATER_HEATER_COMMAND_HAS_ON_STATE = 32;
-  WATER_HEATER_COMMAND_HAS_AWAY_STATE = 64;
 }
 
 message WaterHeaterCommandRequest {

esphome/components/api/api_connection.cpp

@@ -133,8 +133,8 @@ void APIConnection::start() {
     return;
   }
   // Initialize client name with peername (IP address) until Hello message provides actual name
-  char peername[socket::SOCKADDR_STR_LEN];
-  this->helper_->set_client_name(this->helper_->get_peername_to(peername), strlen(peername));
+  const char *peername = this->helper_->get_client_peername();
+  this->helper_->set_client_name(peername, strlen(peername));
 }
 
 APIConnection::~APIConnection() {
@@ -179,8 +179,8 @@ void APIConnection::begin_iterator_(ActiveIterator type) {
 
 void APIConnection::loop() {
   if (this->flags_.next_close) {
-    // requested a disconnect - don't close socket here, let APIServer::loop() do it
-    // so getpeername() still works for the disconnect trigger
+    // requested a disconnect
+    this->helper_->close();
     this->flags_.remove = true;
     return;
   }
@@ -219,8 +219,35 @@ void APIConnection::loop() {
     this->process_batch_();
   }
 
-  if (this->active_iterator_ != ActiveIterator::NONE) {
-    this->process_active_iterator_();
+  switch (this->active_iterator_) {
+    case ActiveIterator::LIST_ENTITIES:
+      if (this->iterator_storage_.list_entities.completed()) {
+        this->destroy_active_iterator_();
+        if (this->flags_.state_subscription) {
+          this->begin_iterator_(ActiveIterator::INITIAL_STATE);
+        }
+      } else {
+        this->process_iterator_batch_(this->iterator_storage_.list_entities);
+      }
+      break;
+    case ActiveIterator::INITIAL_STATE:
+      if (this->iterator_storage_.initial_state.completed()) {
+        this->destroy_active_iterator_();
+        // Process any remaining batched messages immediately
+        if (!this->deferred_batch_.empty()) {
+          this->process_batch_();
+        }
+        // Now that everything is sent, enable immediate sending for future state changes
+        this->flags_.should_try_send_immediately = true;
+        // Release excess memory from buffers that grew during initial sync
+        this->deferred_batch_.release_buffer();
+        this->helper_->release_buffers();
+      } else {
+        this->process_iterator_batch_(this->iterator_storage_.initial_state);
+      }
+      break;
+    case ActiveIterator::NONE:
+      break;
   }
 
   if (this->flags_.sent_ping) {
@@ -256,49 +283,6 @@ void APIConnection::loop() {
 #endif
 }
 
-void APIConnection::process_active_iterator_() {
-  // Caller ensures active_iterator_ != NONE
-  if (this->active_iterator_ == ActiveIterator::LIST_ENTITIES) {
-    if (this->iterator_storage_.list_entities.completed()) {
-      this->destroy_active_iterator_();
-      if (this->flags_.state_subscription) {
-        this->begin_iterator_(ActiveIterator::INITIAL_STATE);
-      }
-    } else {
-      this->process_iterator_batch_(this->iterator_storage_.list_entities);
-    }
-  } else {  // INITIAL_STATE
-    if (this->iterator_storage_.initial_state.completed()) {
-      this->destroy_active_iterator_();
-      // Process any remaining batched messages immediately
-      if (!this->deferred_batch_.empty()) {
-        this->process_batch_();
-      }
-      // Now that everything is sent, enable immediate sending for future state changes
-      this->flags_.should_try_send_immediately = true;
-      // Release excess memory from buffers that grew during initial sync
-      this->deferred_batch_.release_buffer();
-      this->helper_->release_buffers();
-    } else {
-      this->process_iterator_batch_(this->iterator_storage_.initial_state);
-    }
-  }
-}
-
-void APIConnection::process_iterator_batch_(ComponentIterator &iterator) {
-  size_t initial_size = this->deferred_batch_.size();
-  size_t max_batch = this->get_max_batch_size_();
-  while (!iterator.completed() && (this->deferred_batch_.size() - initial_size) < max_batch) {
-    iterator.advance();
-  }
-
-  // If the batch is full, process it immediately
-  // Note: iterator.advance() already calls schedule_batch_() via schedule_message_()
-  if (this->deferred_batch_.size() >= max_batch) {
-    this->process_batch_();
-  }
-}
-
 bool APIConnection::send_disconnect_response_() {
   // remote initiated disconnect_client
   // don't close yet, we still need to send the disconnect response
@@ -309,8 +293,7 @@ bool APIConnection::send_disconnect_response_() {
   return this->send_message(resp, DisconnectResponse::MESSAGE_TYPE);
 }
 void APIConnection::on_disconnect_response() {
-  // Don't close socket here, let APIServer::loop() do it
-  // so getpeername() still works for the disconnect trigger
+  this->helper_->close();
   this->flags_.remove = true;
 }
 
@@ -1360,12 +1343,8 @@ void APIConnection::on_water_heater_command_request(const WaterHeaterCommandRequ
     call.set_target_temperature_low(msg.target_temperature_low);
   if (msg.has_fields & enums::WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_HIGH)
     call.set_target_temperature_high(msg.target_temperature_high);
-  if ((msg.has_fields & enums::WATER_HEATER_COMMAND_HAS_AWAY_STATE) ||
-      (msg.has_fields & enums::WATER_HEATER_COMMAND_HAS_STATE)) {
+  if (msg.has_fields & enums::WATER_HEATER_COMMAND_HAS_STATE) {
     call.set_away((msg.state & water_heater::WATER_HEATER_STATE_AWAY) != 0);
-  }
-  if ((msg.has_fields & enums::WATER_HEATER_COMMAND_HAS_ON_STATE) ||
-      (msg.has_fields & enums::WATER_HEATER_COMMAND_HAS_STATE)) {
     call.set_on((msg.state & water_heater::WATER_HEATER_STATE_ON) != 0);
   }
   call.perform();
@@ -1486,11 +1465,8 @@ void APIConnection::complete_authentication_() {
   this->flags_.connection_state = static_cast<uint8_t>(ConnectionState::AUTHENTICATED);
   this->log_client_(ESPHOME_LOG_LEVEL_DEBUG, LOG_STR("connected"));
 #ifdef USE_API_CLIENT_CONNECTED_TRIGGER
-  {
-    char peername[socket::SOCKADDR_STR_LEN];
-    this->parent_->get_client_connected_trigger()->trigger(std::string(this->helper_->get_client_name()),
-                                                           std::string(this->helper_->get_peername_to(peername)));
-  }
+  this->parent_->get_client_connected_trigger()->trigger(std::string(this->helper_->get_client_name()),
+                                                         std::string(this->helper_->get_client_peername()));
 #endif
 #ifdef USE_HOMEASSISTANT_TIME
   if (homeassistant::global_homeassistant_time != nullptr) {
@@ -1509,9 +1485,8 @@ bool APIConnection::send_hello_response_(const HelloRequest &msg) {
   this->helper_->set_client_name(msg.client_info.c_str(), msg.client_info.size());
   this->client_api_version_major_ = msg.api_version_major;
   this->client_api_version_minor_ = msg.api_version_minor;
-  char peername[socket::SOCKADDR_STR_LEN];
-  ESP_LOGV(TAG, "Hello from client: '%s' | %s | API Version %" PRIu16 ".%" PRIu16, this->helper_->get_client_name(),
-           this->helper_->get_peername_to(peername), this->client_api_version_major_, this->client_api_version_minor_);
+  ESP_LOGV(TAG, "Hello from client: '%s' | %s | API Version %" PRIu32 ".%" PRIu32, this->helper_->get_client_name(),
+           this->helper_->get_client_peername(), this->client_api_version_major_, this->client_api_version_minor_);
 
   HelloResponse resp;
   resp.api_version_major = 1;
@@ -1859,8 +1834,7 @@ void APIConnection::on_no_setup_connection() {
   this->log_client_(ESPHOME_LOG_LEVEL_DEBUG, LOG_STR("no connection setup"));
 }
 void APIConnection::on_fatal_error() {
-  // Don't close socket here - keep it open so getpeername() works for logging
-  // Socket will be closed when client is removed from the list in APIServer::loop()
+  this->helper_->close();
   this->flags_.remove = true;
 }
 
@@ -1921,6 +1895,10 @@ bool APIConnection::schedule_batch_() {
 }
 
 void APIConnection::process_batch_() {
+  // Ensure MessageInfo remains trivially destructible for our placement new approach
+  static_assert(std::is_trivially_destructible<MessageInfo>::value,
+                "MessageInfo must remain trivially destructible with this placement-new approach");
+
   if (this->deferred_batch_.empty()) {
     this->flags_.batch_scheduled = false;
     return;
@@ -1945,10 +1923,6 @@ void APIConnection::process_batch_() {
   for (size_t i = 0; i < num_items; i++) {
     total_estimated_size += this->deferred_batch_[i].estimated_size;
   }
-  // Clamp to MAX_BATCH_PACKET_SIZE — we won't send more than that per batch
-  if (total_estimated_size > MAX_BATCH_PACKET_SIZE) {
-    total_estimated_size = MAX_BATCH_PACKET_SIZE;
-  }
 
   this->prepare_first_message_buffer(shared_buf, header_padding, total_estimated_size);
 
@@ -1972,20 +1946,7 @@ void APIConnection::process_batch_() {
     return;
   }
 
-  // Multi-message path — heavy stack frame isolated in separate noinline function
-  this->process_batch_multi_(shared_buf, num_items, header_padding, footer_size);
-}
-
-// Separated from process_batch_() so the single-message fast path gets a minimal
-// stack frame without the MAX_MESSAGES_PER_BATCH * sizeof(MessageInfo) array.
-void APIConnection::process_batch_multi_(std::vector<uint8_t> &shared_buf, size_t num_items, uint8_t header_padding,
-                                         uint8_t footer_size) {
-  // Ensure MessageInfo remains trivially destructible for our placement new approach
-  static_assert(std::is_trivially_destructible<MessageInfo>::value,
-                "MessageInfo must remain trivially destructible with this placement-new approach");
-
-  const size_t messages_to_process = std::min(num_items, MAX_MESSAGES_PER_BATCH);
-  const uint8_t frame_overhead = header_padding + footer_size;
+  size_t messages_to_process = std::min(num_items, MAX_MESSAGES_PER_BATCH);
 
   // Stack-allocated array for message info
   alignas(MessageInfo) char message_info_storage[MAX_MESSAGES_PER_BATCH * sizeof(MessageInfo)];
@@ -2012,7 +1973,7 @@ void APIConnection::process_batch_multi_(std::vector<uint8_t> &shared_buf, size_
 
     // Message was encoded successfully
     // payload_size is header_padding + actual payload size + footer_size
-    uint16_t proto_payload_size = payload_size - frame_overhead;
+    uint16_t proto_payload_size = payload_size - header_padding - footer_size;
     // Use placement new to construct MessageInfo in pre-allocated stack array
     // This avoids default-constructing all MAX_MESSAGES_PER_BATCH elements
     // Explicit destruction is not needed because MessageInfo is trivially destructible,
@@ -2028,38 +1989,42 @@ void APIConnection::process_batch_multi_(std::vector<uint8_t> &shared_buf, size_
     current_offset = shared_buf.size() + footer_size;
   }
 
-  if (items_processed > 0) {
-    // Add footer space for the last message (for Noise protocol MAC)
-    if (footer_size > 0) {
-      shared_buf.resize(shared_buf.size() + footer_size);
-    }
-
-    // Send all collected messages
-    APIError err = this->helper_->write_protobuf_messages(ProtoWriteBuffer{&shared_buf},
-                                                          std::span<const MessageInfo>(message_info, items_processed));
-    if (err != APIError::OK && err != APIError::WOULD_BLOCK) {
-      this->fatal_error_with_log_(LOG_STR("Batch write failed"), err);
-    }
-
-#ifdef HAS_PROTO_MESSAGE_DUMP
-    // Log messages after send attempt for VV debugging
-    // It's safe to use the buffer for logging at this point regardless of send result
-    for (size_t i = 0; i < items_processed; i++) {
-      const auto &item = this->deferred_batch_[i];
-      this->log_batch_item_(item);
-    }
-#endif
-
-    // Partial batch — remove processed items and reschedule
-    if (items_processed < this->deferred_batch_.size()) {
-      this->deferred_batch_.remove_front(items_processed);
-      this->schedule_batch_();
-      return;
-    }
+  if (items_processed == 0) {
+    this->deferred_batch_.clear();
+    return;
   }
 
-  // All items processed (or none could be processed)
-  this->clear_batch_();
+  // Add footer space for the last message (for Noise protocol MAC)
+  if (footer_size > 0) {
+    shared_buf.resize(shared_buf.size() + footer_size);
+  }
+
+  // Send all collected messages
+  APIError err = this->helper_->write_protobuf_messages(ProtoWriteBuffer{&shared_buf},
+                                                        std::span<const MessageInfo>(message_info, items_processed));
+  if (err != APIError::OK && err != APIError::WOULD_BLOCK) {
+    this->fatal_error_with_log_(LOG_STR("Batch write failed"), err);
+  }
+
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  // Log messages after send attempt for VV debugging
+  // It's safe to use the buffer for logging at this point regardless of send result
+  for (size_t i = 0; i < items_processed; i++) {
+    const auto &item = this->deferred_batch_[i];
+    this->log_batch_item_(item);
+  }
+#endif
+
+  // Handle remaining items more efficiently
+  if (items_processed < this->deferred_batch_.size()) {
+    // Remove processed items from the beginning
+    this->deferred_batch_.remove_front(items_processed);
+    // Reschedule for remaining items
+    this->schedule_batch_();
+  } else {
+    // All items processed
+    this->clear_batch_();
+  }
 }
 
 // Dispatch message encoding based on message_type
@@ -2226,14 +2191,12 @@ void APIConnection::process_state_subscriptions_() {
 #endif  // USE_API_HOMEASSISTANT_STATES
 
 void APIConnection::log_client_(int level, const LogString *message) {
-  char peername[socket::SOCKADDR_STR_LEN];
   esp_log_printf_(level, TAG, __LINE__, ESPHOME_LOG_FORMAT("%s (%s): %s"), this->helper_->get_client_name(),
-                  this->helper_->get_peername_to(peername), LOG_STR_ARG(message));
+                  this->helper_->get_client_peername(), LOG_STR_ARG(message));
 }
 
 void APIConnection::log_warning_(const LogString *message, APIError err) {
-  char peername[socket::SOCKADDR_STR_LEN];
-  ESP_LOGW(TAG, "%s (%s): %s %s errno=%d", this->helper_->get_client_name(), this->helper_->get_peername_to(peername),
+  ESP_LOGW(TAG, "%s (%s): %s %s errno=%d", this->helper_->get_client_name(), this->helper_->get_client_peername(),
            LOG_STR_ARG(message), LOG_STR_ARG(api_error_to_logstr(err)), errno);
 }
 

esphome/components/api/api_connection.h

@@ -15,10 +15,6 @@
 #include <limits>
 #include <vector>
 
-namespace esphome {
-class ComponentIterator;
-}  // namespace esphome
-
 namespace esphome::api {
 
 // Keepalive timeout in milliseconds
@@ -32,7 +28,7 @@ static constexpr size_t MAX_INITIAL_PER_BATCH = 34;         // For clients >= AP
 static_assert(MAX_MESSAGES_PER_BATCH >= MAX_INITIAL_PER_BATCH,
               "MAX_MESSAGES_PER_BATCH must be >= MAX_INITIAL_PER_BATCH");
 
-class APIConnection final : public APIServerConnectionBase {
+class APIConnection final : public APIServerConnection {
  public:
   friend class APIServer;
   friend class ListEntitiesIterator;
@@ -280,10 +276,8 @@ class APIConnection final : public APIServerConnectionBase {
   bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) override;
 
   const char *get_name() const { return this->helper_->get_client_name(); }
-  /// Get peer name (IP address) into caller-provided buffer, returns buf for convenience
-  const char *get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const {
-    return this->helper_->get_peername_to(buf);
-  }
+  /// Get peer name (IP address) - cached at connection init time
+  const char *get_peername() const { return this->helper_->get_client_peername(); }
 
  protected:
   // Helper function to handle authentication completion
@@ -370,13 +364,20 @@ class APIConnection final : public APIServerConnectionBase {
     return this->client_supports_api_version(1, 14) ? MAX_INITIAL_PER_BATCH : MAX_INITIAL_PER_BATCH_LEGACY;
   }
 
-  // Process active iterator (list_entities/initial_state) during connection setup.
-  // Extracted from loop() — only runs during initial handshake, NONE in steady state.
-  void __attribute__((noinline)) process_active_iterator_();
+  // Helper method to process multiple entities from an iterator in a batch
+  template<typename Iterator> void process_iterator_batch_(Iterator &iterator) {
+    size_t initial_size = this->deferred_batch_.size();
+    size_t max_batch = this->get_max_batch_size_();
+    while (!iterator.completed() && (this->deferred_batch_.size() - initial_size) < max_batch) {
+      iterator.advance();
+    }
 
-  // Helper method to process multiple entities from an iterator in a batch.
-  // Takes ComponentIterator base class reference to avoid duplicate template instantiations.
-  void process_iterator_batch_(ComponentIterator &iterator);
+    // If the batch is full, process it immediately
+    // Note: iterator.advance() already calls schedule_batch_() via schedule_message_()
+    if (this->deferred_batch_.size() >= max_batch) {
+      this->process_batch_();
+    }
+  }
 
 #ifdef USE_BINARY_SENSOR
   static uint16_t try_send_binary_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
@@ -548,8 +549,8 @@ class APIConnection final : public APIServerConnectionBase {
       batch_start_time = 0;
     }
 
-    // Remove processed items from the front — noinline to keep memmove out of warm callers
-    void remove_front(size_t count) __attribute__((noinline)) { items.erase(items.begin(), items.begin() + count); }
+    // Remove processed items from the front
+    void remove_front(size_t count) { items.erase(items.begin(), items.begin() + count); }
 
     bool empty() const { return items.empty(); }
     size_t size() const { return items.size(); }
@@ -621,8 +622,6 @@ class APIConnection final : public APIServerConnectionBase {
 
   bool schedule_batch_();
   void process_batch_();
-  void process_batch_multi_(std::vector<uint8_t> &shared_buf, size_t num_items, uint8_t header_padding,
-                            uint8_t footer_size) __attribute__((noinline));
   void clear_batch_() {
     this->deferred_batch_.clear();
     this->flags_.batch_scheduled = false;

esphome/components/api/api_frame_helper.cpp

@@ -16,12 +16,7 @@ static const char *const TAG = "api.frame_helper";
 static constexpr size_t API_MAX_LOG_BYTES = 168;
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
-#define HELPER_LOG(msg, ...) \
-  do { \
-    char peername_buf[socket::SOCKADDR_STR_LEN]; \
-    this->get_peername_to(peername_buf); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, peername_buf, ##__VA_ARGS__); \
-  } while (0)
+#define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, this->client_peername_, ##__VA_ARGS__)
 #else
 #define HELPER_LOG(msg, ...) ((void) 0)
 #endif
@@ -245,20 +240,13 @@ APIError APIFrameHelper::try_send_tx_buf_() {
   return APIError::OK;  // All buffers sent successfully
 }
 
-const char *APIFrameHelper::get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const {
-  if (this->socket_) {
-    this->socket_->getpeername_to(buf);
-  } else {
-    buf[0] = '\0';
-  }
-  return buf.data();
-}
-
 APIError APIFrameHelper::init_common_() {
   if (state_ != State::INITIALIZE || this->socket_ == nullptr) {
     HELPER_LOG("Bad state for init %d", (int) state_);
     return APIError::BAD_STATE;
   }
+  // Cache peername now while socket is valid - needed for error logging after socket failure
+  this->socket_->getpeername_to(this->client_peername_);
   int err = this->socket_->setblocking(false);
   if (err != 0) {
     state_ = State::FAILED;

esphome/components/api/api_frame_helper.h

@@ -90,9 +90,8 @@ class APIFrameHelper {
 
   // Get client name (null-terminated)
   const char *get_client_name() const { return this->client_name_; }
-  // Get client peername/IP into caller-provided buffer (fetches on-demand from socket)
-  // Returns pointer to buf for convenience in printf-style calls
-  const char *get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const;
+  // Get client peername/IP (null-terminated, cached at init time for availability after socket failure)
+  const char *get_client_peername() const { return this->client_peername_; }
   // Set client name from buffer with length (truncates if needed)
   void set_client_name(const char *name, size_t len) {
     size_t copy_len = std::min(len, sizeof(this->client_name_) - 1);
@@ -106,8 +105,6 @@ class APIFrameHelper {
   bool can_write_without_blocking() { return this->state_ == State::DATA && this->tx_buf_count_ == 0; }
   int getpeername(struct sockaddr *addr, socklen_t *addrlen) { return socket_->getpeername(addr, addrlen); }
   APIError close() {
-    if (state_ == State::CLOSED)
-      return APIError::OK;  // Already closed
     state_ = State::CLOSED;
     int err = this->socket_->close();
     if (err == -1)
@@ -234,6 +231,8 @@ class APIFrameHelper {
 
   // Client name buffer - stores name from Hello message or initial peername
   char client_name_[CLIENT_INFO_NAME_MAX_LEN]{};
+  // Cached peername/IP address - captured at init time for availability after socket failure
+  char client_peername_[socket::SOCKADDR_STR_LEN]{};
 
   // Group smaller types together
   uint16_t rx_buf_len_ = 0;

esphome/components/api/api_frame_helper_noise.cpp

@@ -29,12 +29,7 @@ static constexpr size_t PROLOGUE_INIT_LEN = 12;  // strlen("NoiseAPIInit")
 static constexpr size_t API_MAX_LOG_BYTES = 168;
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
-#define HELPER_LOG(msg, ...) \
-  do { \
-    char peername_buf[socket::SOCKADDR_STR_LEN]; \
-    this->get_peername_to(peername_buf); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, peername_buf, ##__VA_ARGS__); \
-  } while (0)
+#define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, this->client_peername_, ##__VA_ARGS__)
 #else
 #define HELPER_LOG(msg, ...) ((void) 0)
 #endif

esphome/components/api/api_frame_helper_plaintext.cpp

@@ -21,12 +21,7 @@ static const char *const TAG = "api.plaintext";
 static constexpr size_t API_MAX_LOG_BYTES = 168;
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
-#define HELPER_LOG(msg, ...) \
-  do { \
-    char peername_buf[socket::SOCKADDR_STR_LEN]; \
-    this->get_peername_to(peername_buf); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, peername_buf, ##__VA_ARGS__); \
-  } while (0)
+#define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, this->client_peername_, ##__VA_ARGS__)
 #else
 #define HELPER_LOG(msg, ...) ((void) 0)
 #endif
@@ -295,8 +290,9 @@ APIError APIPlaintextFrameHelper::write_protobuf_messages(ProtoWriteBuffer buffe
     buf_start[header_offset] = 0x00;  // indicator
 
     // Encode varints directly into buffer
-    encode_varint_to_buffer(msg.payload_size, buf_start + header_offset + 1);
-    encode_varint_to_buffer(msg.message_type, buf_start + header_offset + 1 + size_varint_len);
+    ProtoVarInt(msg.payload_size).encode_to_buffer_unchecked(buf_start + header_offset + 1, size_varint_len);
+    ProtoVarInt(msg.message_type)
+        .encode_to_buffer_unchecked(buf_start + header_offset + 1 + size_varint_len, type_varint_len);
 
     // Add iovec for this message (header + payload)
     size_t msg_len = static_cast<size_t>(total_header_len + msg.payload_size);

esphome/components/api/api_pb2.h

@@ -147,8 +147,6 @@ enum WaterHeaterCommandHasField : uint32_t {
   WATER_HEATER_COMMAND_HAS_STATE = 4,
   WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_LOW = 8,
   WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_HIGH = 16,
-  WATER_HEATER_COMMAND_HAS_ON_STATE = 32,
-  WATER_HEATER_COMMAND_HAS_AWAY_STATE = 64,
 };
 #ifdef USE_NUMBER
 enum NumberMode : uint32_t {
@@ -442,6 +440,19 @@ class PingResponse final : public ProtoMessage {
 
  protected:
 };
+class DeviceInfoRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 9;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "device_info_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 #ifdef USE_AREAS
 class AreaInfo final : public ProtoMessage {
  public:
@@ -535,6 +546,19 @@ class DeviceInfoResponse final : public ProtoMessage {
 
  protected:
 };
+class ListEntitiesRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 11;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "list_entities_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 class ListEntitiesDoneResponse final : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 19;
@@ -548,6 +572,19 @@ class ListEntitiesDoneResponse final : public ProtoMessage {
 
  protected:
 };
+class SubscribeStatesRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 20;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "subscribe_states_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 #ifdef USE_BINARY_SENSOR
 class ListEntitiesBinarySensorResponse final : public InfoResponseProtoMessage {
  public:
@@ -1000,6 +1037,19 @@ class NoiseEncryptionSetKeyResponse final : public ProtoMessage {
 };
 #endif
 #ifdef USE_API_HOMEASSISTANT_SERVICES
+class SubscribeHomeassistantServicesRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 34;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "subscribe_homeassistant_services_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 class HomeassistantServiceMap final : public ProtoMessage {
  public:
   StringRef key{};
@@ -1067,6 +1117,19 @@ class HomeassistantActionResponse final : public ProtoDecodableMessage {
 };
 #endif
 #ifdef USE_API_HOMEASSISTANT_STATES
+class SubscribeHomeAssistantStatesRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 38;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "subscribe_home_assistant_states_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 class SubscribeHomeAssistantStateResponse final : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 39;
@@ -2097,6 +2160,19 @@ class BluetoothGATTNotifyDataResponse final : public ProtoMessage {
 
  protected:
 };
+class SubscribeBluetoothConnectionsFreeRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 80;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "subscribe_bluetooth_connections_free_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 class BluetoothConnectionsFreeResponse final : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 81;
@@ -2203,6 +2279,19 @@ class BluetoothDeviceUnpairingResponse final : public ProtoMessage {
 
  protected:
 };
+class UnsubscribeBluetoothLEAdvertisementsRequest final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 87;
+  static constexpr uint8_t ESTIMATED_SIZE = 0;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "unsubscribe_bluetooth_le_advertisements_request"; }
+#endif
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *dump_to(DumpBuffer &out) const override;
+#endif
+
+ protected:
+};
 class BluetoothDeviceClearCacheResponse final : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 88;

esphome/components/api/api_pb2_dump.cpp

@@ -385,10 +385,6 @@ const char *proto_enum_to_string<enums::WaterHeaterCommandHasField>(enums::Water
       return "WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_LOW";
     case enums::WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_HIGH:
       return "WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_HIGH";
-    case enums::WATER_HEATER_COMMAND_HAS_ON_STATE:
-      return "WATER_HEATER_COMMAND_HAS_ON_STATE";
-    case enums::WATER_HEATER_COMMAND_HAS_AWAY_STATE:
-      return "WATER_HEATER_COMMAND_HAS_AWAY_STATE";
     default:
       return "UNKNOWN";
   }
@@ -768,6 +764,10 @@ const char *PingResponse::dump_to(DumpBuffer &out) const {
   out.append("PingResponse {}");
   return out.c_str();
 }
+const char *DeviceInfoRequest::dump_to(DumpBuffer &out) const {
+  out.append("DeviceInfoRequest {}");
+  return out.c_str();
+}
 #ifdef USE_AREAS
 const char *AreaInfo::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "AreaInfo");
@@ -848,10 +848,18 @@ const char *DeviceInfoResponse::dump_to(DumpBuffer &out) const {
 #endif
   return out.c_str();
 }
+const char *ListEntitiesRequest::dump_to(DumpBuffer &out) const {
+  out.append("ListEntitiesRequest {}");
+  return out.c_str();
+}
 const char *ListEntitiesDoneResponse::dump_to(DumpBuffer &out) const {
   out.append("ListEntitiesDoneResponse {}");
   return out.c_str();
 }
+const char *SubscribeStatesRequest::dump_to(DumpBuffer &out) const {
+  out.append("SubscribeStatesRequest {}");
+  return out.c_str();
+}
 #ifdef USE_BINARY_SENSOR
 const char *ListEntitiesBinarySensorResponse::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "ListEntitiesBinarySensorResponse");
@@ -1183,6 +1191,10 @@ const char *NoiseEncryptionSetKeyResponse::dump_to(DumpBuffer &out) const {
 }
 #endif
 #ifdef USE_API_HOMEASSISTANT_SERVICES
+const char *SubscribeHomeassistantServicesRequest::dump_to(DumpBuffer &out) const {
+  out.append("SubscribeHomeassistantServicesRequest {}");
+  return out.c_str();
+}
 const char *HomeassistantServiceMap::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "HomeassistantServiceMap");
   dump_field(out, "key", this->key);
@@ -1233,6 +1245,10 @@ const char *HomeassistantActionResponse::dump_to(DumpBuffer &out) const {
 }
 #endif
 #ifdef USE_API_HOMEASSISTANT_STATES
+const char *SubscribeHomeAssistantStatesRequest::dump_to(DumpBuffer &out) const {
+  out.append("SubscribeHomeAssistantStatesRequest {}");
+  return out.c_str();
+}
 const char *SubscribeHomeAssistantStateResponse::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "SubscribeHomeAssistantStateResponse");
   dump_field(out, "entity_id", this->entity_id);
@@ -1908,6 +1924,10 @@ const char *BluetoothGATTNotifyDataResponse::dump_to(DumpBuffer &out) const {
   dump_bytes_field(out, "data", this->data_ptr_, this->data_len_);
   return out.c_str();
 }
+const char *SubscribeBluetoothConnectionsFreeRequest::dump_to(DumpBuffer &out) const {
+  out.append("SubscribeBluetoothConnectionsFreeRequest {}");
+  return out.c_str();
+}
 const char *BluetoothConnectionsFreeResponse::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "BluetoothConnectionsFreeResponse");
   dump_field(out, "free", this->free);
@@ -1950,6 +1970,10 @@ const char *BluetoothDeviceUnpairingResponse::dump_to(DumpBuffer &out) const {
   dump_field(out, "error", this->error);
   return out.c_str();
 }
+const char *UnsubscribeBluetoothLEAdvertisementsRequest::dump_to(DumpBuffer &out) const {
+  out.append("UnsubscribeBluetoothLEAdvertisementsRequest {}");
+  return out.c_str();
+}
 const char *BluetoothDeviceClearCacheResponse::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "BluetoothDeviceClearCacheResponse");
   dump_field(out, "address", this->address);

esphome/components/api/api_pb2_service.cpp

@@ -21,23 +21,6 @@ void APIServerConnectionBase::log_receive_message_(const LogString *name) {
 #endif
 
 void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {
-  // Check authentication/connection requirements
-  switch (msg_type) {
-    case HelloRequest::MESSAGE_TYPE:       // No setup required
-    case DisconnectRequest::MESSAGE_TYPE:  // No setup required
-    case PingRequest::MESSAGE_TYPE:        // No setup required
-      break;
-    case 9 /* DeviceInfoRequest is empty */:  // Connection setup only
-      if (!this->check_connection_setup_()) {
-        return;
-      }
-      break;
-    default:
-      if (!this->check_authenticated_()) {
-        return;
-      }
-      break;
-  }
   switch (msg_type) {
     case HelloRequest::MESSAGE_TYPE: {
       HelloRequest msg;
@@ -76,21 +59,21 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       this->on_ping_response();
       break;
     }
-    case 9 /* DeviceInfoRequest is empty */: {
+    case DeviceInfoRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_device_info_request"));
 #endif
       this->on_device_info_request();
       break;
     }
-    case 11 /* ListEntitiesRequest is empty */: {
+    case ListEntitiesRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_list_entities_request"));
 #endif
       this->on_list_entities_request();
       break;
     }
-    case 20 /* SubscribeStatesRequest is empty */: {
+    case SubscribeStatesRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_subscribe_states_request"));
 #endif
@@ -151,7 +134,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
     }
 #endif
 #ifdef USE_API_HOMEASSISTANT_SERVICES
-    case 34 /* SubscribeHomeassistantServicesRequest is empty */: {
+    case SubscribeHomeassistantServicesRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_subscribe_homeassistant_services_request"));
 #endif
@@ -169,7 +152,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       break;
     }
 #ifdef USE_API_HOMEASSISTANT_STATES
-    case 38 /* SubscribeHomeAssistantStatesRequest is empty */: {
+    case SubscribeHomeAssistantStatesRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_subscribe_home_assistant_states_request"));
 #endif
@@ -376,7 +359,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
     }
 #endif
 #ifdef USE_BLUETOOTH_PROXY
-    case 80 /* SubscribeBluetoothConnectionsFreeRequest is empty */: {
+    case SubscribeBluetoothConnectionsFreeRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_subscribe_bluetooth_connections_free_request"));
 #endif
@@ -385,7 +368,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
     }
 #endif
 #ifdef USE_BLUETOOTH_PROXY
-    case 87 /* UnsubscribeBluetoothLEAdvertisementsRequest is empty */: {
+    case UnsubscribeBluetoothLEAdvertisementsRequest::MESSAGE_TYPE: {
 #ifdef HAS_PROTO_MESSAGE_DUMP
       this->log_receive_message_(LOG_STR("on_unsubscribe_bluetooth_le_advertisements_request"));
 #endif
@@ -640,4 +623,28 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
   }
 }
 
+void APIServerConnection::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {
+  // Check authentication/connection requirements for messages
+  switch (msg_type) {
+    case HelloRequest::MESSAGE_TYPE:       // No setup required
+    case DisconnectRequest::MESSAGE_TYPE:  // No setup required
+    case PingRequest::MESSAGE_TYPE:        // No setup required
+      break;                               // Skip all checks for these messages
+    case DeviceInfoRequest::MESSAGE_TYPE:  // Connection setup only
+      if (!this->check_connection_setup_()) {
+        return;  // Connection not setup
+      }
+      break;
+    default:
+      // All other messages require authentication (which includes connection check)
+      if (!this->check_authenticated_()) {
+        return;  // Authentication failed
+      }
+      break;
+  }
+
+  // Call base implementation to process the message
+  APIServerConnectionBase::read_message(msg_size, msg_type, msg_data);
+}
+
 }  // namespace esphome::api

esphome/components/api/api_pb2_service.h

@@ -228,4 +228,9 @@ class APIServerConnectionBase : public ProtoService {
   void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
 };
 
+class APIServerConnection : public APIServerConnectionBase {
+ protected:
+  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
+};
+
 }  // namespace esphome::api

esphome/components/api/api_server.cpp

@@ -192,15 +192,11 @@ void APIServer::loop() {
     ESP_LOGV(TAG, "Remove connection %s", client->get_name());
 
 #ifdef USE_API_CLIENT_DISCONNECTED_TRIGGER
-    // Save client info before closing socket and removal for the trigger
-    char peername_buf[socket::SOCKADDR_STR_LEN];
+    // Save client info before removal for the trigger
     std::string client_name(client->get_name());
-    std::string client_peername(client->get_peername_to(peername_buf));
+    std::string client_peername(client->get_peername());
 #endif
 
-    // Close socket now (was deferred from on_fatal_error to allow getpeername)
-    client->helper_->close();
-
     // Swap with the last element and pop (avoids expensive vector shifts)
     if (client_index < this->clients_.size() - 1) {
       std::swap(this->clients_[client_index], this->clients_.back());

esphome/components/api/homeassistant_service.h

@@ -25,9 +25,7 @@ template<typename... X> class TemplatableStringValue : public TemplatableValue<s
 
  private:
   // Helper to convert value to string - handles the case where value is already a string
-  template<typename T> static std::string value_to_string(T &&val) {
-    return to_string(std::forward<T>(val));  // NOLINT
-  }
+  template<typename T> static std::string value_to_string(T &&val) { return to_string(std::forward<T>(val)); }
 
   // Overloads for string types - needed because std::to_string doesn't support them
   static std::string value_to_string(char *val) {

esphome/components/api/list_entities.h

@@ -94,6 +94,7 @@ class ListEntitiesIterator : public ComponentIterator {
   bool on_update(update::UpdateEntity *entity) override;
 #endif
   bool on_end() override;
+  bool completed() { return this->state_ == IteratorState::NONE; }
 
  protected:
   APIConnection *client_;

esphome/components/api/proto.cpp

@@ -133,7 +133,7 @@ void ProtoDecodableMessage::decode(const uint8_t *buffer, size_t length) {
         break;
       }
       default:
-        ESP_LOGV(TAG, "Invalid field type %" PRIu32 " at offset %ld", field_type, (long) (ptr - buffer));
+        ESP_LOGV(TAG, "Invalid field type %u at offset %ld", field_type, (long) (ptr - buffer));
         return;
     }
   }

esphome/components/api/proto.h

@@ -57,16 +57,6 @@ inline uint16_t count_packed_varints(const uint8_t *data, size_t len) {
   return count;
 }
 
-/// Encode a varint directly into a pre-allocated buffer.
-/// Caller must ensure buffer has space (use ProtoSize::varint() to calculate).
-inline void encode_varint_to_buffer(uint32_t val, uint8_t *buffer) {
-  while (val > 0x7F) {
-    *buffer++ = static_cast<uint8_t>(val | 0x80);
-    val >>= 7;
-  }
-  *buffer = static_cast<uint8_t>(val);
-}
-
 /*
  * StringRef Ownership Model for API Protocol Messages
  * ===================================================
@@ -103,17 +93,17 @@ class ProtoVarInt {
   ProtoVarInt() : value_(0) {}
   explicit ProtoVarInt(uint64_t value) : value_(value) {}
 
-  /// Parse a varint from buffer. consumed must be a valid pointer (not null).
   static optional<ProtoVarInt> parse(const uint8_t *buffer, uint32_t len, uint32_t *consumed) {
-#ifdef ESPHOME_DEBUG_API
-    assert(consumed != nullptr);
-#endif
-    if (len == 0)
+    if (len == 0) {
+      if (consumed != nullptr)
+        *consumed = 0;
       return {};
+    }
 
     // Most common case: single-byte varint (values 0-127)
     if ((buffer[0] & 0x80) == 0) {
-      *consumed = 1;
+      if (consumed != nullptr)
+        *consumed = 1;
       return ProtoVarInt(buffer[0]);
     }
 
@@ -132,11 +122,14 @@ class ProtoVarInt {
       result |= uint64_t(val & 0x7F) << uint64_t(bitpos);
       bitpos += 7;
       if ((val & 0x80) == 0) {
-        *consumed = i + 1;
+        if (consumed != nullptr)
+          *consumed = i + 1;
         return ProtoVarInt(result);
       }
     }
 
+    if (consumed != nullptr)
+      *consumed = 0;
     return {};  // Incomplete or invalid varint
   }
 
@@ -160,6 +153,50 @@ class ProtoVarInt {
     // with ZigZag encoding
     return decode_zigzag64(this->value_);
   }
+  /**
+   * Encode the varint value to a pre-allocated buffer without bounds checking.
+   *
+   * @param buffer The pre-allocated buffer to write the encoded varint to
+   * @param len The size of the buffer in bytes
+   *
+   * @note The caller is responsible for ensuring the buffer is large enough
+   *       to hold the encoded value. Use ProtoSize::varint() to calculate
+   *       the exact size needed before calling this method.
+   * @note No bounds checking is performed for performance reasons.
+   */
+  void encode_to_buffer_unchecked(uint8_t *buffer, size_t len) {
+    uint64_t val = this->value_;
+    if (val <= 0x7F) {
+      buffer[0] = val;
+      return;
+    }
+    size_t i = 0;
+    while (val && i < len) {
+      uint8_t temp = val & 0x7F;
+      val >>= 7;
+      if (val) {
+        buffer[i++] = temp | 0x80;
+      } else {
+        buffer[i++] = temp;
+      }
+    }
+  }
+  void encode(std::vector<uint8_t> &out) {
+    uint64_t val = this->value_;
+    if (val <= 0x7F) {
+      out.push_back(val);
+      return;
+    }
+    while (val) {
+      uint8_t temp = val & 0x7F;
+      val >>= 7;
+      if (val) {
+        out.push_back(temp | 0x80);
+      } else {
+        out.push_back(temp);
+      }
+    }
+  }
 
  protected:
   uint64_t value_;
@@ -219,20 +256,8 @@ class ProtoWriteBuffer {
  public:
   ProtoWriteBuffer(std::vector<uint8_t> *buffer) : buffer_(buffer) {}
   void write(uint8_t value) { this->buffer_->push_back(value); }
-  void encode_varint_raw(uint32_t value) {
-    while (value > 0x7F) {
-      this->buffer_->push_back(static_cast<uint8_t>(value | 0x80));
-      value >>= 7;
-    }
-    this->buffer_->push_back(static_cast<uint8_t>(value));
-  }
-  void encode_varint_raw_64(uint64_t value) {
-    while (value > 0x7F) {
-      this->buffer_->push_back(static_cast<uint8_t>(value | 0x80));
-      value >>= 7;
-    }
-    this->buffer_->push_back(static_cast<uint8_t>(value));
-  }
+  void encode_varint_raw(ProtoVarInt value) { value.encode(*this->buffer_); }
+  void encode_varint_raw(uint32_t value) { this->encode_varint_raw(ProtoVarInt(value)); }
   /**
    * Encode a field key (tag/wire type combination).
    *
@@ -282,13 +307,13 @@ class ProtoWriteBuffer {
     if (value == 0 && !force)
       return;
     this->encode_field_raw(field_id, 0);  // type 0: Varint - uint64
-    this->encode_varint_raw_64(value);
+    this->encode_varint_raw(ProtoVarInt(value));
   }
   void encode_bool(uint32_t field_id, bool value, bool force = false) {
     if (!value && !force)
       return;
     this->encode_field_raw(field_id, 0);  // type 0: Varint - bool
-    this->buffer_->push_back(value ? 0x01 : 0x00);
+    this->write(0x01);
   }
   void encode_fixed32(uint32_t field_id, uint32_t value, bool force = false) {
     if (value == 0 && !force)
@@ -913,15 +938,13 @@ inline void ProtoWriteBuffer::encode_message(uint32_t field_id, const ProtoMessa
   this->buffer_->resize(this->buffer_->size() + varint_length_bytes);
 
   // Write the length varint directly
-  encode_varint_to_buffer(msg_length_bytes, this->buffer_->data() + begin);
+  ProtoVarInt(msg_length_bytes).encode_to_buffer_unchecked(this->buffer_->data() + begin, varint_length_bytes);
 
   // Now encode the message content - it will append to the buffer
   value.encode(*this);
 
-#ifdef ESPHOME_DEBUG_API
   // Verify that the encoded size matches what we calculated
   assert(this->buffer_->size() == begin + varint_length_bytes + msg_length_bytes);
-#endif
 }
 
 // Implementation of decode_to_message - must be after ProtoDecodableMessage is defined

esphome/components/api/subscribe_state.h

@@ -88,6 +88,7 @@ class InitialStateIterator : public ComponentIterator {
 #ifdef USE_UPDATE
   bool on_update(update::UpdateEntity *entity) override;
 #endif
+  bool completed() { return this->state_ == IteratorState::NONE; }
 
  protected:
   APIConnection *client_;

esphome/components/aqi/aqi_calculator.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include <algorithm>
 #include <cmath>
 #include <limits>
 #include "abstract_aqi_calculator.h"
@@ -15,11 +14,7 @@ class AQICalculator : public AbstractAQICalculator {
     float pm2_5_index = calculate_index(pm2_5_value, PM2_5_GRID);
     float pm10_0_index = calculate_index(pm10_0_value, PM10_0_GRID);
 
-    float aqi = std::max(pm2_5_index, pm10_0_index);
-    if (aqi < 0.0f) {
-      aqi = 0.0f;
-    }
-    return static_cast<uint16_t>(std::lround(aqi));
+    return static_cast<uint16_t>(std::round((pm2_5_index < pm10_0_index) ? pm10_0_index : pm2_5_index));
   }
 
  protected:
@@ -27,27 +22,13 @@ class AQICalculator : public AbstractAQICalculator {
 
   static constexpr int INDEX_GRID[NUM_LEVELS][2] = {{0, 50}, {51, 100}, {101, 150}, {151, 200}, {201, 300}, {301, 500}};
 
-  static constexpr float PM2_5_GRID[NUM_LEVELS][2] = {
-      // clang-format off
-      {0.0f, 9.1f},
-      {9.1f, 35.5f},
-      {35.5f, 55.5f},
-      {55.5f, 125.5f},
-      {125.5f, 225.5f},
-      {225.5f, std::numeric_limits<float>::max()}
-      // clang-format on
-  };
+  static constexpr float PM2_5_GRID[NUM_LEVELS][2] = {{0.0f, 9.0f},     {9.1f, 35.4f},
+                                                      {35.5f, 55.4f},   {55.5f, 125.4f},
+                                                      {125.5f, 225.4f}, {225.5f, std::numeric_limits<float>::max()}};
 
-  static constexpr float PM10_0_GRID[NUM_LEVELS][2] = {
-      // clang-format off
-      {0.0f, 55.0f},
-      {55.0f, 155.0f},
-      {155.0f, 255.0f},
-      {255.0f, 355.0f},
-      {355.0f, 425.0f},
-      {425.0f, std::numeric_limits<float>::max()}
-      // clang-format on
-  };
+  static constexpr float PM10_0_GRID[NUM_LEVELS][2] = {{0.0f, 54.0f},    {55.0f, 154.0f},
+                                                       {155.0f, 254.0f}, {255.0f, 354.0f},
+                                                       {355.0f, 424.0f}, {425.0f, std::numeric_limits<float>::max()}};
 
   static float calculate_index(float value, const float array[NUM_LEVELS][2]) {
     int grid_index = get_grid_index(value, array);
@@ -64,10 +45,7 @@ class AQICalculator : public AbstractAQICalculator {
 
   static int get_grid_index(float value, const float array[NUM_LEVELS][2]) {
     for (int i = 0; i < NUM_LEVELS; i++) {
-      const bool in_range =
-          (value >= array[i][0]) && ((i == NUM_LEVELS - 1) ? (value <= array[i][1])   // last bucket inclusive
-                                                           : (value < array[i][1]));  // others exclusive on hi
-      if (in_range) {
+      if (value >= array[i][0] && value <= array[i][1]) {
         return i;
       }
     }

esphome/components/aqi/caqi_calculator.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include <algorithm>
 #include <cmath>
 #include <limits>
 #include "abstract_aqi_calculator.h"
@@ -13,11 +12,7 @@ class CAQICalculator : public AbstractAQICalculator {
     float pm2_5_index = calculate_index(pm2_5_value, PM2_5_GRID);
     float pm10_0_index = calculate_index(pm10_0_value, PM10_0_GRID);
 
-    float aqi = std::max(pm2_5_index, pm10_0_index);
-    if (aqi < 0.0f) {
-      aqi = 0.0f;
-    }
-    return static_cast<uint16_t>(std::lround(aqi));
+    return static_cast<uint16_t>(std::round((pm2_5_index < pm10_0_index) ? pm10_0_index : pm2_5_index));
   }
 
  protected:
@@ -26,24 +21,10 @@ class CAQICalculator : public AbstractAQICalculator {
   static constexpr int INDEX_GRID[NUM_LEVELS][2] = {{0, 25}, {26, 50}, {51, 75}, {76, 100}, {101, 400}};
 
   static constexpr float PM2_5_GRID[NUM_LEVELS][2] = {
-      // clang-format off
-      {0.0f, 15.1f},
-      {15.1f, 30.1f},
-      {30.1f, 55.1f},
-      {55.1f, 110.1f},
-      {110.1f, std::numeric_limits<float>::max()}
-      // clang-format on
-  };
+      {0.0f, 15.0f}, {15.1f, 30.0f}, {30.1f, 55.0f}, {55.1f, 110.0f}, {110.1f, std::numeric_limits<float>::max()}};
 
   static constexpr float PM10_0_GRID[NUM_LEVELS][2] = {
-      // clang-format off
-      {0.0f, 25.1f},
-      {25.1f, 50.1f},
-      {50.1f, 90.1f},
-      {90.1f, 180.1f},
-      {180.1f, std::numeric_limits<float>::max()}
-      // clang-format on
-  };
+      {0.0f, 25.0f}, {25.1f, 50.0f}, {50.1f, 90.0f}, {90.1f, 180.0f}, {180.1f, std::numeric_limits<float>::max()}};
 
   static float calculate_index(float value, const float array[NUM_LEVELS][2]) {
     int grid_index = get_grid_index(value, array);
@@ -61,10 +42,7 @@ class CAQICalculator : public AbstractAQICalculator {
 
   static int get_grid_index(float value, const float array[NUM_LEVELS][2]) {
     for (int i = 0; i < NUM_LEVELS; i++) {
-      const bool in_range =
-          (value >= array[i][0]) && ((i == NUM_LEVELS - 1) ? (value <= array[i][1])   // last bucket inclusive
-                                                           : (value < array[i][1]));  // others exclusive on hi
-      if (in_range) {
+      if (value >= array[i][0] && value <= array[i][1]) {
         return i;
       }
     }

esphome/components/binary_sensor/automation.cpp

@@ -5,14 +5,6 @@ namespace esphome::binary_sensor {
 
 static const char *const TAG = "binary_sensor.automation";
 
-// MultiClickTrigger timeout IDs.
-// MultiClickTrigger is its own Component instance, so the scheduler scopes
-// IDs by component pointer — no risk of collisions between instances.
-constexpr uint32_t MULTICLICK_TRIGGER_ID = 0;
-constexpr uint32_t MULTICLICK_COOLDOWN_ID = 1;
-constexpr uint32_t MULTICLICK_IS_VALID_ID = 2;
-constexpr uint32_t MULTICLICK_IS_NOT_VALID_ID = 3;
-
 void MultiClickTrigger::on_state_(bool state) {
   // Handle duplicate events
   if (state == this->last_state_) {
@@ -35,7 +27,7 @@ void MultiClickTrigger::on_state_(bool state) {
                evt.min_length, evt.max_length);
       this->at_index_ = 1;
       if (this->timing_.size() == 1 && evt.max_length == 4294967294UL) {
-        this->set_timeout(MULTICLICK_TRIGGER_ID, evt.min_length, [this]() { this->trigger_(); });
+        this->set_timeout("trigger", evt.min_length, [this]() { this->trigger_(); });
       } else {
         this->schedule_is_valid_(evt.min_length);
         this->schedule_is_not_valid_(evt.max_length);
@@ -65,13 +57,13 @@ void MultiClickTrigger::on_state_(bool state) {
     this->schedule_is_not_valid_(evt.max_length);
   } else if (*this->at_index_ + 1 != this->timing_.size()) {
     ESP_LOGV(TAG, "B i=%zu min=%" PRIu32, *this->at_index_, evt.min_length);  // NOLINT
-    this->cancel_timeout(MULTICLICK_IS_NOT_VALID_ID);
+    this->cancel_timeout("is_not_valid");
     this->schedule_is_valid_(evt.min_length);
   } else {
     ESP_LOGV(TAG, "C i=%zu min=%" PRIu32, *this->at_index_, evt.min_length);  // NOLINT
     this->is_valid_ = false;
-    this->cancel_timeout(MULTICLICK_IS_NOT_VALID_ID);
-    this->set_timeout(MULTICLICK_TRIGGER_ID, evt.min_length, [this]() { this->trigger_(); });
+    this->cancel_timeout("is_not_valid");
+    this->set_timeout("trigger", evt.min_length, [this]() { this->trigger_(); });
   }
 
   *this->at_index_ = *this->at_index_ + 1;
@@ -79,14 +71,14 @@ void MultiClickTrigger::on_state_(bool state) {
 void MultiClickTrigger::schedule_cooldown_() {
   ESP_LOGV(TAG, "Multi Click: Invalid length of press, starting cooldown of %" PRIu32 " ms", this->invalid_cooldown_);
   this->is_in_cooldown_ = true;
-  this->set_timeout(MULTICLICK_COOLDOWN_ID, this->invalid_cooldown_, [this]() {
+  this->set_timeout("cooldown", this->invalid_cooldown_, [this]() {
     ESP_LOGV(TAG, "Multi Click: Cooldown ended, matching is now enabled again.");
     this->is_in_cooldown_ = false;
   });
   this->at_index_.reset();
-  this->cancel_timeout(MULTICLICK_TRIGGER_ID);
-  this->cancel_timeout(MULTICLICK_IS_VALID_ID);
-  this->cancel_timeout(MULTICLICK_IS_NOT_VALID_ID);
+  this->cancel_timeout("trigger");
+  this->cancel_timeout("is_valid");
+  this->cancel_timeout("is_not_valid");
 }
 void MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
   if (min_length == 0) {
@@ -94,13 +86,13 @@ void MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
     return;
   }
   this->is_valid_ = false;
-  this->set_timeout(MULTICLICK_IS_VALID_ID, min_length, [this]() {
+  this->set_timeout("is_valid", min_length, [this]() {
     ESP_LOGV(TAG, "Multi Click: You can now %s the button.", this->parent_->state ? "RELEASE" : "PRESS");
     this->is_valid_ = true;
   });
 }
 void MultiClickTrigger::schedule_is_not_valid_(uint32_t max_length) {
-  this->set_timeout(MULTICLICK_IS_NOT_VALID_ID, max_length, [this]() {
+  this->set_timeout("is_not_valid", max_length, [this]() {
     ESP_LOGV(TAG, "Multi Click: You waited too long to %s.", this->parent_->state ? "RELEASE" : "PRESS");
     this->is_valid_ = false;
     this->schedule_cooldown_();
@@ -114,9 +106,9 @@ void MultiClickTrigger::cancel() {
 void MultiClickTrigger::trigger_() {
   ESP_LOGV(TAG, "Multi Click: Hooray, multi click is valid. Triggering!");
   this->at_index_.reset();
-  this->cancel_timeout(MULTICLICK_TRIGGER_ID);
-  this->cancel_timeout(MULTICLICK_IS_VALID_ID);
-  this->cancel_timeout(MULTICLICK_IS_NOT_VALID_ID);
+  this->cancel_timeout("trigger");
+  this->cancel_timeout("is_valid");
+  this->cancel_timeout("is_not_valid");
   this->trigger();
 }
 

esphome/components/binary_sensor/filter.cpp

@@ -6,14 +6,6 @@ namespace esphome::binary_sensor {
 
 static const char *const TAG = "sensor.filter";
 
-// Timeout IDs for filter classes.
-// Each filter is its own Component instance, so the scheduler scopes
-// IDs by component pointer — no risk of collisions between instances.
-constexpr uint32_t FILTER_TIMEOUT_ID = 0;
-// AutorepeatFilter needs two distinct IDs (both timeouts on the same component)
-constexpr uint32_t AUTOREPEAT_TIMING_ID = 0;
-constexpr uint32_t AUTOREPEAT_ON_OFF_ID = 1;
-
 void Filter::output(bool value) {
   if (this->next_ == nullptr) {
     this->parent_->send_state_internal(value);
@@ -31,16 +23,16 @@ void Filter::input(bool value) {
 }
 
 void TimeoutFilter::input(bool value) {
-  this->set_timeout(FILTER_TIMEOUT_ID, this->timeout_delay_.value(), [this]() { this->parent_->invalidate_state(); });
+  this->set_timeout("timeout", this->timeout_delay_.value(), [this]() { this->parent_->invalidate_state(); });
   // we do not de-dup here otherwise changes from invalid to valid state will not be output
   this->output(value);
 }
 
 optional<bool> DelayedOnOffFilter::new_value(bool value) {
   if (value) {
-    this->set_timeout(FILTER_TIMEOUT_ID, this->on_delay_.value(), [this]() { this->output(true); });
+    this->set_timeout("ON_OFF", this->on_delay_.value(), [this]() { this->output(true); });
   } else {
-    this->set_timeout(FILTER_TIMEOUT_ID, this->off_delay_.value(), [this]() { this->output(false); });
+    this->set_timeout("ON_OFF", this->off_delay_.value(), [this]() { this->output(false); });
   }
   return {};
 }
@@ -49,10 +41,10 @@ float DelayedOnOffFilter::get_setup_priority() const { return setup_priority::HA
 
 optional<bool> DelayedOnFilter::new_value(bool value) {
   if (value) {
-    this->set_timeout(FILTER_TIMEOUT_ID, this->delay_.value(), [this]() { this->output(true); });
+    this->set_timeout("ON", this->delay_.value(), [this]() { this->output(true); });
     return {};
   } else {
-    this->cancel_timeout(FILTER_TIMEOUT_ID);
+    this->cancel_timeout("ON");
     return false;
   }
 }
@@ -61,10 +53,10 @@ float DelayedOnFilter::get_setup_priority() const { return setup_priority::HARDW
 
 optional<bool> DelayedOffFilter::new_value(bool value) {
   if (!value) {
-    this->set_timeout(FILTER_TIMEOUT_ID, this->delay_.value(), [this]() { this->output(false); });
+    this->set_timeout("OFF", this->delay_.value(), [this]() { this->output(false); });
     return {};
   } else {
-    this->cancel_timeout(FILTER_TIMEOUT_ID);
+    this->cancel_timeout("OFF");
     return true;
   }
 }
@@ -84,8 +76,8 @@ optional<bool> AutorepeatFilter::new_value(bool value) {
     this->next_timing_();
     return true;
   } else {
-    this->cancel_timeout(AUTOREPEAT_TIMING_ID);
-    this->cancel_timeout(AUTOREPEAT_ON_OFF_ID);
+    this->cancel_timeout("TIMING");
+    this->cancel_timeout("ON_OFF");
     this->active_timing_ = 0;
     return false;
   }
@@ -96,10 +88,8 @@ void AutorepeatFilter::next_timing_() {
   // 1st time: starts waiting the first delay
   // 2nd time: starts waiting the second delay and starts toggling with the first time_off / _on
   // last time: no delay to start but have to bump the index to reflect the last
-  if (this->active_timing_ < this->timings_.size()) {
-    this->set_timeout(AUTOREPEAT_TIMING_ID, this->timings_[this->active_timing_].delay,
-                      [this]() { this->next_timing_(); });
-  }
+  if (this->active_timing_ < this->timings_.size())
+    this->set_timeout("TIMING", this->timings_[this->active_timing_].delay, [this]() { this->next_timing_(); });
 
   if (this->active_timing_ <= this->timings_.size()) {
     this->active_timing_++;
@@ -114,8 +104,7 @@ void AutorepeatFilter::next_timing_() {
 void AutorepeatFilter::next_value_(bool val) {
   const AutorepeatFilterTiming &timing = this->timings_[this->active_timing_ - 2];
   this->output(val);  // This is at least the second one so not initial
-  this->set_timeout(AUTOREPEAT_ON_OFF_ID, val ? timing.time_on : timing.time_off,
-                    [this, val]() { this->next_value_(!val); });
+  this->set_timeout("ON_OFF", val ? timing.time_on : timing.time_off, [this, val]() { this->next_value_(!val); });
 }
 
 float AutorepeatFilter::get_setup_priority() const { return setup_priority::HARDWARE; }
@@ -126,7 +115,7 @@ optional<bool> LambdaFilter::new_value(bool value) { return this->f_(value); }
 
 optional<bool> SettleFilter::new_value(bool value) {
   if (!this->steady_) {
-    this->set_timeout(FILTER_TIMEOUT_ID, this->delay_.value(), [this, value]() {
+    this->set_timeout("SETTLE", this->delay_.value(), [this, value]() {
       this->steady_ = true;
       this->output(value);
     });
@@ -134,7 +123,7 @@ optional<bool> SettleFilter::new_value(bool value) {
   } else {
     this->steady_ = false;
     this->output(value);
-    this->set_timeout(FILTER_TIMEOUT_ID, this->delay_.value(), [this]() { this->steady_ = true; });
+    this->set_timeout("SETTLE", this->delay_.value(), [this]() { this->steady_ = true; });
     return value;
   }
 }

esphome/components/bk72xx/boards.py

@@ -159,10 +159,6 @@ BK72XX_BOARD_PINS = {
         "A0": 23,
     },
     "cbu": {
-        "SPI0_CS": 15,
-        "SPI0_MISO": 17,
-        "SPI0_MOSI": 16,
-        "SPI0_SCK": 14,
         "WIRE1_SCL": 20,
         "WIRE1_SDA": 21,
         "WIRE2_SCL": 0,
@@ -231,10 +227,6 @@ BK72XX_BOARD_PINS = {
         "A0": 23,
     },
     "generic-bk7231t-qfn32-tuya": {
-        "SPI0_CS": 15,
-        "SPI0_MISO": 17,
-        "SPI0_MOSI": 16,
-        "SPI0_SCK": 14,
         "WIRE1_SCL": 20,
         "WIRE1_SDA": 21,
         "WIRE2_SCL": 0,
@@ -303,10 +295,6 @@ BK72XX_BOARD_PINS = {
         "A0": 23,
     },
     "generic-bk7231n-qfn32-tuya": {
-        "SPI0_CS": 15,
-        "SPI0_MISO": 17,
-        "SPI0_MOSI": 16,
-        "SPI0_SCK": 14,
         "WIRE1_SCL": 20,
         "WIRE1_SDA": 21,
         "WIRE2_SCL": 0,
@@ -497,7 +485,8 @@ BK72XX_BOARD_PINS = {
     },
     "cb3s": {
         "WIRE1_SCL": 20,
-        "WIRE1_SDA": 21,
+        "WIRE1_SDA_0": 21,
+        "WIRE1_SDA_1": 21,
         "SERIAL1_RX": 10,
         "SERIAL1_TX": 11,
         "SERIAL2_TX": 0,
@@ -658,10 +647,6 @@ BK72XX_BOARD_PINS = {
         "A0": 23,
     },
     "generic-bk7252": {
-        "SPI0_CS": 15,
-        "SPI0_MISO": 17,
-        "SPI0_MOSI": 16,
-        "SPI0_SCK": 14,
         "WIRE1_SCL": 20,
         "WIRE1_SDA": 21,
         "WIRE2_SCL": 0,
@@ -1111,10 +1096,6 @@ BK72XX_BOARD_PINS = {
         "A0": 23,
     },
     "cb3se": {
-        "SPI0_CS": 15,
-        "SPI0_MISO": 17,
-        "SPI0_MOSI": 16,
-        "SPI0_SCK": 14,
         "WIRE2_SCL": 0,
         "WIRE2_SDA": 1,
         "SERIAL1_RX": 10,

esphome/components/bl0942/bl0942.cpp

@@ -46,16 +46,16 @@ static const uint32_t PKT_TIMEOUT_MS = 200;
 
 void BL0942::loop() {
   DataPacket buffer;
-  size_t avail = this->available();
+  int avail = this->available();
 
   if (!avail) {
     return;
   }
-  if (avail < sizeof(buffer)) {
+  if (static_cast<size_t>(avail) < sizeof(buffer)) {
     if (!this->rx_start_) {
       this->rx_start_ = millis();
     } else if (millis() > this->rx_start_ + PKT_TIMEOUT_MS) {
-      ESP_LOGW(TAG, "Junk on wire. Throwing away partial message (%zu bytes)", avail);
+      ESP_LOGW(TAG, "Junk on wire. Throwing away partial message (%d bytes)", avail);
       this->read_array((uint8_t *) &buffer, avail);
       this->rx_start_ = 0;
     }

esphome/components/bl0942/bl0942.h

@@ -59,10 +59,10 @@ namespace bl0942 {
 //
 // Which makes BL0952_EREF = BL0942_PREF * 3600000 / 419430.4
 
-static const float BL0942_PREF = 623.0270705;  // calculated using UREF and IREF
-static const float BL0942_UREF = 15883.34116;  // calculated for (390k x 5 / 510R) voltage divider
-static const float BL0942_IREF = 251065.6814;  // calculated for 1mR shunt
-static const float BL0942_EREF = 5347.484240;  // calculated using UREF and IREF
+static const float BL0942_PREF = 596;              // taken from tasmota
+static const float BL0942_UREF = 15873.35944299;   // should be 73989/1.218
+static const float BL0942_IREF = 251213.46469622;  // 305978/1.218
+static const float BL0942_EREF = 3304.61127328;    // Measured
 
 struct DataPacket {
   uint8_t frame_header;
@@ -86,11 +86,11 @@ enum LineFrequency : uint8_t {
 
 class BL0942 : public PollingComponent, public uart::UARTDevice {
  public:
-  void set_voltage_sensor(sensor::Sensor *voltage_sensor) { this->voltage_sensor_ = voltage_sensor; }
-  void set_current_sensor(sensor::Sensor *current_sensor) { this->current_sensor_ = current_sensor; }
-  void set_power_sensor(sensor::Sensor *power_sensor) { this->power_sensor_ = power_sensor; }
-  void set_energy_sensor(sensor::Sensor *energy_sensor) { this->energy_sensor_ = energy_sensor; }
-  void set_frequency_sensor(sensor::Sensor *frequency_sensor) { this->frequency_sensor_ = frequency_sensor; }
+  void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
+  void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
+  void set_power_sensor(sensor::Sensor *power_sensor) { power_sensor_ = power_sensor; }
+  void set_energy_sensor(sensor::Sensor *energy_sensor) { energy_sensor_ = energy_sensor; }
+  void set_frequency_sensor(sensor::Sensor *frequency_sensor) { frequency_sensor_ = frequency_sensor; }
   void set_line_freq(LineFrequency freq) { this->line_freq_ = freq; }
   void set_address(uint8_t address) { this->address_ = address; }
   void set_reset(bool reset) { this->reset_ = reset; }

esphome/components/bmp3xx_base/bmp3xx_base.cpp

@@ -6,9 +6,8 @@
 */
 
 #include "bmp3xx_base.h"
-#include "esphome/core/hal.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
+#include "esphome/core/hal.h"
 #include <cinttypes>
 
 namespace esphome {
@@ -27,18 +26,46 @@ static const LogString *chip_type_to_str(uint8_t chip_type) {
   }
 }
 
-// Oversampling strings indexed by Oversampling enum (0-5): NONE, X2, X4, X8, X16, X32
-PROGMEM_STRING_TABLE(OversamplingStrings, "None", "2x", "4x", "8x", "16x", "32x", "");
-
 static const LogString *oversampling_to_str(Oversampling oversampling) {
-  return OversamplingStrings::get_log_str(static_cast<uint8_t>(oversampling), OversamplingStrings::LAST_INDEX);
+  switch (oversampling) {
+    case Oversampling::OVERSAMPLING_NONE:
+      return LOG_STR("None");
+    case Oversampling::OVERSAMPLING_X2:
+      return LOG_STR("2x");
+    case Oversampling::OVERSAMPLING_X4:
+      return LOG_STR("4x");
+    case Oversampling::OVERSAMPLING_X8:
+      return LOG_STR("8x");
+    case Oversampling::OVERSAMPLING_X16:
+      return LOG_STR("16x");
+    case Oversampling::OVERSAMPLING_X32:
+      return LOG_STR("32x");
+    default:
+      return LOG_STR("");
+  }
 }
 
-// IIR filter strings indexed by IIRFilter enum (0-7): OFF, 2, 4, 8, 16, 32, 64, 128
-PROGMEM_STRING_TABLE(IIRFilterStrings, "OFF", "2x", "4x", "8x", "16x", "32x", "64x", "128x", "");
-
 static const LogString *iir_filter_to_str(IIRFilter filter) {
-  return IIRFilterStrings::get_log_str(static_cast<uint8_t>(filter), IIRFilterStrings::LAST_INDEX);
+  switch (filter) {
+    case IIRFilter::IIR_FILTER_OFF:
+      return LOG_STR("OFF");
+    case IIRFilter::IIR_FILTER_2:
+      return LOG_STR("2x");
+    case IIRFilter::IIR_FILTER_4:
+      return LOG_STR("4x");
+    case IIRFilter::IIR_FILTER_8:
+      return LOG_STR("8x");
+    case IIRFilter::IIR_FILTER_16:
+      return LOG_STR("16x");
+    case IIRFilter::IIR_FILTER_32:
+      return LOG_STR("32x");
+    case IIRFilter::IIR_FILTER_64:
+      return LOG_STR("64x");
+    case IIRFilter::IIR_FILTER_128:
+      return LOG_STR("128x");
+    default:
+      return LOG_STR("");
+  }
 }
 
 void BMP3XXComponent::setup() {

esphome/components/bmp581_base/bmp581_base.cpp

@@ -11,26 +11,57 @@
  */
 
 #include "bmp581_base.h"
-#include "esphome/core/hal.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
+#include "esphome/core/hal.h"
 
 namespace esphome::bmp581_base {
 
 static const char *const TAG = "bmp581";
 
-// Oversampling strings indexed by Oversampling enum (0-7): NONE, X2, X4, X8, X16, X32, X64, X128
-PROGMEM_STRING_TABLE(OversamplingStrings, "None", "2x", "4x", "8x", "16x", "32x", "64x", "128x", "");
-
 static const LogString *oversampling_to_str(Oversampling oversampling) {
-  return OversamplingStrings::get_log_str(static_cast<uint8_t>(oversampling), OversamplingStrings::LAST_INDEX);
+  switch (oversampling) {
+    case Oversampling::OVERSAMPLING_NONE:
+      return LOG_STR("None");
+    case Oversampling::OVERSAMPLING_X2:
+      return LOG_STR("2x");
+    case Oversampling::OVERSAMPLING_X4:
+      return LOG_STR("4x");
+    case Oversampling::OVERSAMPLING_X8:
+      return LOG_STR("8x");
+    case Oversampling::OVERSAMPLING_X16:
+      return LOG_STR("16x");
+    case Oversampling::OVERSAMPLING_X32:
+      return LOG_STR("32x");
+    case Oversampling::OVERSAMPLING_X64:
+      return LOG_STR("64x");
+    case Oversampling::OVERSAMPLING_X128:
+      return LOG_STR("128x");
+    default:
+      return LOG_STR("");
+  }
 }
 
-// IIR filter strings indexed by IIRFilter enum (0-7): OFF, 2, 4, 8, 16, 32, 64, 128
-PROGMEM_STRING_TABLE(IIRFilterStrings, "OFF", "2x", "4x", "8x", "16x", "32x", "64x", "128x", "");
-
 static const LogString *iir_filter_to_str(IIRFilter filter) {
-  return IIRFilterStrings::get_log_str(static_cast<uint8_t>(filter), IIRFilterStrings::LAST_INDEX);
+  switch (filter) {
+    case IIRFilter::IIR_FILTER_OFF:
+      return LOG_STR("OFF");
+    case IIRFilter::IIR_FILTER_2:
+      return LOG_STR("2x");
+    case IIRFilter::IIR_FILTER_4:
+      return LOG_STR("4x");
+    case IIRFilter::IIR_FILTER_8:
+      return LOG_STR("8x");
+    case IIRFilter::IIR_FILTER_16:
+      return LOG_STR("16x");
+    case IIRFilter::IIR_FILTER_32:
+      return LOG_STR("32x");
+    case IIRFilter::IIR_FILTER_64:
+      return LOG_STR("64x");
+    case IIRFilter::IIR_FILTER_128:
+      return LOG_STR("128x");
+    default:
+      return LOG_STR("");
+  }
 }
 
 void BMP581Component::dump_config() {

esphome/components/cover/__init__.py

@@ -11,7 +11,6 @@ from esphome.const import (
     CONF_ICON,
     CONF_ID,
     CONF_MQTT_ID,
-    CONF_MQTT_JSON_STATE_PAYLOAD,
     CONF_ON_IDLE,
     CONF_ON_OPEN,
     CONF_POSITION,
@@ -120,9 +119,6 @@ _COVER_SCHEMA = (
     .extend(
         {
             cv.OnlyWith(CONF_MQTT_ID, "mqtt"): cv.declare_id(mqtt.MQTTCoverComponent),
-            cv.Optional(CONF_MQTT_JSON_STATE_PAYLOAD): cv.All(
-                cv.requires_component("mqtt"), cv.boolean
-            ),
             cv.Optional(CONF_DEVICE_CLASS): cv.one_of(*DEVICE_CLASSES, lower=True),
             cv.Optional(CONF_POSITION_COMMAND_TOPIC): cv.All(
                 cv.requires_component("mqtt"), cv.subscribe_topic
@@ -152,22 +148,6 @@ _COVER_SCHEMA = (
 _COVER_SCHEMA.add_extra(entity_duplicate_validator("cover"))
 
 
-def _validate_mqtt_state_topics(config):
-    if config.get(CONF_MQTT_JSON_STATE_PAYLOAD):
-        if CONF_POSITION_STATE_TOPIC in config:
-            raise cv.Invalid(
-                f"'{CONF_POSITION_STATE_TOPIC}' cannot be used with '{CONF_MQTT_JSON_STATE_PAYLOAD}: true'"
-            )
-        if CONF_TILT_STATE_TOPIC in config:
-            raise cv.Invalid(
-                f"'{CONF_TILT_STATE_TOPIC}' cannot be used with '{CONF_MQTT_JSON_STATE_PAYLOAD}: true'"
-            )
-    return config
-
-
-_COVER_SCHEMA.add_extra(_validate_mqtt_state_topics)
-
-
 def cover_schema(
     class_: MockObjClass,
     *,
@@ -215,9 +195,6 @@ async def setup_cover_core_(var, config):
             position_command_topic := config.get(CONF_POSITION_COMMAND_TOPIC)
         ) is not None:
             cg.add(mqtt_.set_custom_position_command_topic(position_command_topic))
-        if config.get(CONF_MQTT_JSON_STATE_PAYLOAD):
-            cg.add_define("USE_MQTT_COVER_JSON")
-            cg.add(mqtt_.set_use_json_format(True))
         if (tilt_state_topic := config.get(CONF_TILT_STATE_TOPIC)) is not None:
             cg.add(mqtt_.set_custom_tilt_state_topic(tilt_state_topic))
         if (tilt_command_topic := config.get(CONF_TILT_COMMAND_TOPIC)) is not None:

esphome/components/cse7766/cse7766.cpp

@@ -16,8 +16,8 @@ void CSE7766Component::loop() {
   }
 
   // Early return prevents updating last_transmission_ when no data is available.
-  size_t avail = this->available();
-  if (avail == 0) {
+  int avail = this->available();
+  if (avail <= 0) {
     return;
   }
 
@@ -27,7 +27,7 @@ void CSE7766Component::loop() {
   // At 4800 baud (~480 bytes/sec) with ~122 Hz loop rate, typically ~4 bytes per call.
   uint8_t buf[CSE7766_RAW_DATA_SIZE];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }

esphome/components/debug/debug_esp8266.cpp

@@ -1,7 +1,6 @@
 #include "debug_component.h"
 #ifdef USE_ESP8266
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 #include <Esp.h>
 
 extern "C" {
@@ -20,38 +19,27 @@ namespace debug {
 
 static const char *const TAG = "debug";
 
-// PROGMEM string table for reset reasons, indexed by reason code (0-6), with "Unknown" as fallback
-// clang-format off
-PROGMEM_STRING_TABLE(ResetReasonStrings,
-  "Power On",                  // 0 = REASON_DEFAULT_RST
-  "Hardware Watchdog",         // 1 = REASON_WDT_RST
-  "Exception",                 // 2 = REASON_EXCEPTION_RST
-  "Software Watchdog",         // 3 = REASON_SOFT_WDT_RST
-  "Software/System restart",   // 4 = REASON_SOFT_RESTART
-  "Deep-Sleep Wake",           // 5 = REASON_DEEP_SLEEP_AWAKE
-  "External System",           // 6 = REASON_EXT_SYS_RST
-  "Unknown"                    // 7 = fallback
-);
-// clang-format on
-static_assert(REASON_DEFAULT_RST == 0, "Reset reason enum values must match table indices");
-static_assert(REASON_WDT_RST == 1, "Reset reason enum values must match table indices");
-static_assert(REASON_EXCEPTION_RST == 2, "Reset reason enum values must match table indices");
-static_assert(REASON_SOFT_WDT_RST == 3, "Reset reason enum values must match table indices");
-static_assert(REASON_SOFT_RESTART == 4, "Reset reason enum values must match table indices");
-static_assert(REASON_DEEP_SLEEP_AWAKE == 5, "Reset reason enum values must match table indices");
-static_assert(REASON_EXT_SYS_RST == 6, "Reset reason enum values must match table indices");
-
-// PROGMEM string table for flash chip modes, indexed by mode code (0-3), with "UNKNOWN" as fallback
-PROGMEM_STRING_TABLE(FlashModeStrings, "QIO", "QOUT", "DIO", "DOUT", "UNKNOWN");
-static_assert(FM_QIO == 0, "Flash mode enum values must match table indices");
-static_assert(FM_QOUT == 1, "Flash mode enum values must match table indices");
-static_assert(FM_DIO == 2, "Flash mode enum values must match table indices");
-static_assert(FM_DOUT == 3, "Flash mode enum values must match table indices");
-
 // Get reset reason string from reason code (no heap allocation)
 // Returns LogString* pointing to flash (PROGMEM) on ESP8266
 static const LogString *get_reset_reason_str(uint32_t reason) {
-  return ResetReasonStrings::get_log_str(static_cast<uint8_t>(reason), ResetReasonStrings::LAST_INDEX);
+  switch (reason) {
+    case REASON_DEFAULT_RST:
+      return LOG_STR("Power On");
+    case REASON_WDT_RST:
+      return LOG_STR("Hardware Watchdog");
+    case REASON_EXCEPTION_RST:
+      return LOG_STR("Exception");
+    case REASON_SOFT_WDT_RST:
+      return LOG_STR("Software Watchdog");
+    case REASON_SOFT_RESTART:
+      return LOG_STR("Software/System restart");
+    case REASON_DEEP_SLEEP_AWAKE:
+      return LOG_STR("Deep-Sleep Wake");
+    case REASON_EXT_SYS_RST:
+      return LOG_STR("External System");
+    default:
+      return LOG_STR("Unknown");
+  }
 }
 
 // Size for core version hex buffer
@@ -104,9 +92,23 @@ size_t DebugComponent::get_device_info_(std::span<char, DEVICE_INFO_BUFFER_SIZE>
   constexpr size_t size = DEVICE_INFO_BUFFER_SIZE;
   char *buf = buffer.data();
 
-  const LogString *flash_mode = FlashModeStrings::get_log_str(
-      static_cast<uint8_t>(ESP.getFlashChipMode()),  // NOLINT(readability-static-accessed-through-instance)
-      FlashModeStrings::LAST_INDEX);
+  const LogString *flash_mode;
+  switch (ESP.getFlashChipMode()) {  // NOLINT(readability-static-accessed-through-instance)
+    case FM_QIO:
+      flash_mode = LOG_STR("QIO");
+      break;
+    case FM_QOUT:
+      flash_mode = LOG_STR("QOUT");
+      break;
+    case FM_DIO:
+      flash_mode = LOG_STR("DIO");
+      break;
+    case FM_DOUT:
+      flash_mode = LOG_STR("DOUT");
+      break;
+    default:
+      flash_mode = LOG_STR("UNKNOWN");
+  }
   uint32_t flash_size = ESP.getFlashChipSize() / 1024;       // NOLINT(readability-static-accessed-through-instance)
   uint32_t flash_speed = ESP.getFlashChipSpeed() / 1000000;  // NOLINT(readability-static-accessed-through-instance)
   ESP_LOGD(TAG, "Flash Chip: Size=%" PRIu32 "kB Speed=%" PRIu32 "MHz Mode=%s", flash_size, flash_speed,

esphome/components/dfplayer/dfplayer.cpp

@@ -133,10 +133,10 @@ void DFPlayer::send_cmd_(uint8_t cmd, uint16_t argument) {
 
 void DFPlayer::loop() {
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[64];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }

esphome/components/dlms_meter/dlms_meter.cpp

@@ -28,7 +28,7 @@ void DlmsMeterComponent::dump_config() {
 
 void DlmsMeterComponent::loop() {
   // Read while data is available, netznoe uses two frames so allow 2x max frame length
-  size_t avail = this->available();
+  int avail = this->available();
   if (avail > 0) {
     size_t remaining = MBUS_MAX_FRAME_LENGTH * 2 - this->receive_buffer_.size();
     if (remaining == 0) {
@@ -36,12 +36,12 @@ void DlmsMeterComponent::loop() {
     } else {
       // Read all available bytes in batches to reduce UART call overhead.
       // Cap reads to remaining buffer capacity.
-      if (avail > remaining) {
+      if (static_cast<size_t>(avail) > remaining) {
         avail = remaining;
       }
       uint8_t buf[64];
       while (avail > 0) {
-        size_t to_read = std::min(avail, sizeof(buf));
+        size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
         if (!this->read_array(buf, to_read)) {
           break;
         }

esphome/components/dsmr/dsmr.cpp

@@ -120,9 +120,9 @@ void Dsmr::stop_requesting_data_() {
 
 void Dsmr::drain_rx_buffer_() {
   uint8_t buf[64];
-  size_t avail;
+  int avail;
   while ((avail = this->available()) > 0) {
-    if (!this->read_array(buf, std::min(avail, sizeof(buf)))) {
+    if (!this->read_array(buf, std::min(static_cast<size_t>(avail), sizeof(buf)))) {
       break;
     }
   }
@@ -134,15 +134,16 @@ void Dsmr::reset_telegram_() {
   this->bytes_read_ = 0;
   this->crypt_bytes_read_ = 0;
   this->crypt_telegram_len_ = 0;
+  this->last_read_time_ = 0;
 }
 
 void Dsmr::receive_telegram_() {
   while (this->available_within_timeout_()) {
     // Read all available bytes in batches to reduce UART call overhead.
     uint8_t buf[64];
-    size_t avail = this->available();
+    int avail = this->available();
     while (avail > 0) {
-      size_t to_read = std::min(avail, sizeof(buf));
+      size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
       if (!this->read_array(buf, to_read))
         return;
       avail -= to_read;
@@ -206,9 +207,9 @@ void Dsmr::receive_encrypted_telegram_() {
   while (this->available_within_timeout_()) {
     // Read all available bytes in batches to reduce UART call overhead.
     uint8_t buf[64];
-    size_t avail = this->available();
+    int avail = this->available();
     while (avail > 0) {
-      size_t to_read = std::min(avail, sizeof(buf));
+      size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
       if (!this->read_array(buf, to_read))
         return;
       avail -= to_read;

esphome/components/esp32/__init__.py

@@ -135,7 +135,6 @@ DEFAULT_EXCLUDED_IDF_COMPONENTS = (
     "esp_driver_dac",  # DAC driver - only needed by esp32_dac component
     "esp_driver_i2s",  # I2S driver - only needed by i2s_audio component
     "esp_driver_mcpwm",  # MCPWM driver - ESPHome doesn't use motor control PWM
-    "esp_driver_pcnt",  # PCNT driver - only needed by pulse_counter, hlw8012 components
     "esp_driver_rmt",  # RMT driver - only needed by remote_transmitter/receiver, neopixelbus
     "esp_driver_touch_sens",  # Touch sensor driver - only needed by esp32_touch
     "esp_driver_twai",  # TWAI/CAN driver - only needed by esp32_can component
@@ -645,12 +644,11 @@ def _is_framework_url(source: str) -> bool:
 # The default/recommended arduino framework version
 #  - https://github.com/espressif/arduino-esp32/releases
 ARDUINO_FRAMEWORK_VERSION_LOOKUP = {
-    "recommended": cv.Version(3, 3, 7),
-    "latest": cv.Version(3, 3, 7),
-    "dev": cv.Version(3, 3, 7),
+    "recommended": cv.Version(3, 3, 6),
+    "latest": cv.Version(3, 3, 6),
+    "dev": cv.Version(3, 3, 6),
 }
 ARDUINO_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(3, 3, 7): cv.Version(55, 3, 37),
     cv.Version(3, 3, 6): cv.Version(55, 3, 36),
     cv.Version(3, 3, 5): cv.Version(55, 3, 35),
     cv.Version(3, 3, 4): cv.Version(55, 3, 31, "2"),
@@ -669,7 +667,6 @@ ARDUINO_PLATFORM_VERSION_LOOKUP = {
 # These versions correspond to pioarduino/esp-idf releases
 # See: https://github.com/pioarduino/esp-idf/releases
 ARDUINO_IDF_VERSION_LOOKUP = {
-    cv.Version(3, 3, 7): cv.Version(5, 5, 2),
     cv.Version(3, 3, 6): cv.Version(5, 5, 2),
     cv.Version(3, 3, 5): cv.Version(5, 5, 2),
     cv.Version(3, 3, 4): cv.Version(5, 5, 1),
@@ -693,7 +690,7 @@ ESP_IDF_FRAMEWORK_VERSION_LOOKUP = {
     "dev": cv.Version(5, 5, 2),
 }
 ESP_IDF_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(5, 5, 2): cv.Version(55, 3, 37),
+    cv.Version(5, 5, 2): cv.Version(55, 3, 36),
     cv.Version(5, 5, 1): cv.Version(55, 3, 31, "2"),
     cv.Version(5, 5, 0): cv.Version(55, 3, 31, "2"),
     cv.Version(5, 4, 3): cv.Version(55, 3, 32),
@@ -710,8 +707,8 @@ ESP_IDF_PLATFORM_VERSION_LOOKUP = {
 # The platform-espressif32 version
 #  - https://github.com/pioarduino/platform-espressif32/releases
 PLATFORM_VERSION_LOOKUP = {
-    "recommended": cv.Version(55, 3, 37),
-    "latest": cv.Version(55, 3, 37),
+    "recommended": cv.Version(55, 3, 36),
+    "latest": cv.Version(55, 3, 36),
     "dev": "https://github.com/pioarduino/platform-espressif32.git#develop",
 }
 

esphome/components/esp32/boards.py

@@ -1686,10 +1686,6 @@ BOARDS = {
         "name": "Espressif ESP32-C6-DevKitM-1",
         "variant": VARIANT_ESP32C6,
     },
-    "esp32-c61-devkitc1": {
-        "name": "Espressif ESP32-C61-DevKitC-1 (4 MB Flash)",
-        "variant": VARIANT_ESP32C61,
-    },
     "esp32-c61-devkitc1-n8r2": {
         "name": "Espressif ESP32-C61-DevKitC-1 N8R2 (8 MB Flash Quad, 2 MB PSRAM Quad)",
         "variant": VARIANT_ESP32C61,
@@ -1722,10 +1718,6 @@ BOARDS = {
         "name": "Espressif ESP32-P4 rev.300 generic",
         "variant": VARIANT_ESP32P4,
     },
-    "esp32-p4_r3-evboard": {
-        "name": "Espressif ESP32-P4 Function EV Board v1.6 (rev.301)",
-        "variant": VARIANT_ESP32P4,
-    },
     "esp32-pico-devkitm-2": {
         "name": "Espressif ESP32-PICO-DevKitM-2",
         "variant": VARIANT_ESP32,
@@ -2562,10 +2554,6 @@ BOARDS = {
         "name": "XinaBox CW02",
         "variant": VARIANT_ESP32,
     },
-    "yb_esp32s3_amp": {
-        "name": "YelloByte YB-ESP32-S3-AMP",
-        "variant": VARIANT_ESP32S3,
-    },
     "yb_esp32s3_amp_v2": {
         "name": "YelloByte YB-ESP32-S3-AMP (Rev.2)",
         "variant": VARIANT_ESP32S3,
@@ -2574,10 +2562,6 @@ BOARDS = {
         "name": "YelloByte YB-ESP32-S3-AMP (Rev.3)",
         "variant": VARIANT_ESP32S3,
     },
-    "yb_esp32s3_dac": {
-        "name": "YelloByte YB-ESP32-S3-DAC",
-        "variant": VARIANT_ESP32S3,
-    },
     "yb_esp32s3_drv": {
         "name": "YelloByte YB-ESP32-S3-DRV",
         "variant": VARIANT_ESP32S3,

esphome/components/esp32/preferences.cpp

@@ -124,11 +124,14 @@ class ESP32Preferences : public ESPPreferences {
       return true;
 
     ESP_LOGV(TAG, "Saving %zu items...", s_pending_save.size());
+    // goal try write all pending saves even if one fails
     int cached = 0, written = 0, failed = 0;
     esp_err_t last_err = ESP_OK;
     uint32_t last_key = 0;
 
-    for (const auto &save : s_pending_save) {
+    // go through vector from back to front (makes erase easier/more efficient)
+    for (ssize_t i = s_pending_save.size() - 1; i >= 0; i--) {
+      const auto &save = s_pending_save[i];
       char key_str[KEY_BUFFER_SIZE];
       snprintf(key_str, sizeof(key_str), "%" PRIu32, save.key);
       ESP_LOGVV(TAG, "Checking if NVS data %s has changed", key_str);
@@ -147,9 +150,8 @@ class ESP32Preferences : public ESPPreferences {
         ESP_LOGV(TAG, "NVS data not changed skipping %" PRIu32 "  len=%zu", save.key, save.len);
         cached++;
       }
+      s_pending_save.erase(s_pending_save.begin() + i);
     }
-    s_pending_save.clear();
-
     ESP_LOGD(TAG, "Writing %d items: %d cached, %d written, %d failed", cached + written + failed, cached, written,
              failed);
     if (failed > 0) {

esphome/components/esp32_ble/ble.cpp

@@ -369,9 +369,42 @@ bool ESP32BLE::ble_dismantle_() {
 }
 
 void ESP32BLE::loop() {
-  if (this->state_ != BLE_COMPONENT_STATE_ACTIVE) {
-    this->loop_handle_state_transition_not_active_();
-    return;
+  switch (this->state_) {
+    case BLE_COMPONENT_STATE_OFF:
+    case BLE_COMPONENT_STATE_DISABLED:
+      return;
+    case BLE_COMPONENT_STATE_DISABLE: {
+      ESP_LOGD(TAG, "Disabling");
+
+#ifdef ESPHOME_ESP32_BLE_BLE_STATUS_EVENT_HANDLER_COUNT
+      for (auto *ble_event_handler : this->ble_status_event_handlers_) {
+        ble_event_handler->ble_before_disabled_event_handler();
+      }
+#endif
+
+      if (!ble_dismantle_()) {
+        ESP_LOGE(TAG, "Could not be dismantled");
+        this->mark_failed();
+        return;
+      }
+      this->state_ = BLE_COMPONENT_STATE_DISABLED;
+      return;
+    }
+    case BLE_COMPONENT_STATE_ENABLE: {
+      ESP_LOGD(TAG, "Enabling");
+      this->state_ = BLE_COMPONENT_STATE_OFF;
+
+      if (!ble_setup_()) {
+        ESP_LOGE(TAG, "Could not be set up");
+        this->mark_failed();
+        return;
+      }
+
+      this->state_ = BLE_COMPONENT_STATE_ACTIVE;
+      return;
+    }
+    case BLE_COMPONENT_STATE_ACTIVE:
+      break;
   }
 
   BLEEvent *ble_event = this->ble_events_.pop();
@@ -487,37 +520,6 @@ void ESP32BLE::loop() {
   }
 }
 
-void ESP32BLE::loop_handle_state_transition_not_active_() {
-  // Caller ensures state_ != ACTIVE
-  if (this->state_ == BLE_COMPONENT_STATE_DISABLE) {
-    ESP_LOGD(TAG, "Disabling");
-
-#ifdef ESPHOME_ESP32_BLE_BLE_STATUS_EVENT_HANDLER_COUNT
-    for (auto *ble_event_handler : this->ble_status_event_handlers_) {
-      ble_event_handler->ble_before_disabled_event_handler();
-    }
-#endif
-
-    if (!ble_dismantle_()) {
-      ESP_LOGE(TAG, "Could not be dismantled");
-      this->mark_failed();
-      return;
-    }
-    this->state_ = BLE_COMPONENT_STATE_DISABLED;
-  } else if (this->state_ == BLE_COMPONENT_STATE_ENABLE) {
-    ESP_LOGD(TAG, "Enabling");
-    this->state_ = BLE_COMPONENT_STATE_OFF;
-
-    if (!ble_setup_()) {
-      ESP_LOGE(TAG, "Could not be set up");
-      this->mark_failed();
-      return;
-    }
-
-    this->state_ = BLE_COMPONENT_STATE_ACTIVE;
-  }
-}
-
 // Helper function to load new event data based on type
 void load_ble_event(BLEEvent *event, esp_gap_ble_cb_event_t e, esp_ble_gap_cb_param_t *p) {
   event->load_gap_event(e, p);

esphome/components/esp32_ble/ble.h

@@ -155,10 +155,6 @@ class ESP32BLE : public Component {
 #endif
   static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
 
-  // Handle DISABLE and ENABLE transitions when not in the ACTIVE state.
-  // Other non-ACTIVE states (e.g. OFF, DISABLED) are currently treated as no-ops.
-  void __attribute__((noinline)) loop_handle_state_transition_not_active_();
-
   bool ble_setup_();
   bool ble_dismantle_();
   bool ble_pre_setup_();

esphome/components/esp32_ble/ble_uuid.h

@@ -48,7 +48,7 @@ class ESPBTUUID {
 
   // Remove before 2026.8.0
   ESPDEPRECATED("Use to_str() instead. Removed in 2026.8.0", "2026.2.0")
-  std::string to_string() const;  // NOLINT
+  std::string to_string() const;
   const char *to_str(std::span<char, UUID_STR_LEN> output) const;
 
  protected:

esphome/components/esp32_hosted/__init__.py

@@ -95,9 +95,9 @@ async def to_code(config):
     framework_ver: cv.Version = CORE.data[KEY_CORE][KEY_FRAMEWORK_VERSION]
     os.environ["ESP_IDF_VERSION"] = f"{framework_ver.major}.{framework_ver.minor}"
     if framework_ver >= cv.Version(5, 5, 0):
-        esp32.add_idf_component(name="espressif/esp_wifi_remote", ref="1.3.2")
+        esp32.add_idf_component(name="espressif/esp_wifi_remote", ref="1.2.4")
         esp32.add_idf_component(name="espressif/eppp_link", ref="1.1.4")
-        esp32.add_idf_component(name="espressif/esp_hosted", ref="2.11.5")
+        esp32.add_idf_component(name="espressif/esp_hosted", ref="2.9.3")
     else:
         esp32.add_idf_component(name="espressif/esp_wifi_remote", ref="0.13.0")
         esp32.add_idf_component(name="espressif/eppp_link", ref="0.2.0")

esphome/components/esp32_improv/esp32_improv_component.cpp

@@ -338,8 +338,8 @@ void ESP32ImprovComponent::process_incoming_data_() {
           return;
         }
         wifi::WiFiAP sta{};
-        sta.set_ssid(command.ssid.c_str());
-        sta.set_password(command.password.c_str());
+        sta.set_ssid(command.ssid);
+        sta.set_password(command.password);
         this->connecting_sta_ = sta;
 
         wifi::global_wifi_component->set_sta(sta);

esphome/components/esp32_rmt_led_strip/led_strip.cpp

@@ -7,24 +7,21 @@
 #include "esphome/core/log.h"
 
 #include <esp_attr.h>
-#include <esp_clk_tree.h>
 
 namespace esphome {
 namespace esp32_rmt_led_strip {
 
 static const char *const TAG = "esp32_rmt_led_strip";
 
-static const size_t RMT_SYMBOLS_PER_BYTE = 8;
+#ifdef USE_ESP32_VARIANT_ESP32H2
+static const uint32_t RMT_CLK_FREQ = 32000000;
+static const uint8_t RMT_CLK_DIV = 1;
+#else
+static const uint32_t RMT_CLK_FREQ = 80000000;
+static const uint8_t RMT_CLK_DIV = 2;
+#endif
 
-// Query the RMT default clock source frequency. This varies by variant:
-// APB (80MHz) on ESP32/S2/S3/C3, PLL_F80M (80MHz) on C6/P4, XTAL (32MHz) on H2.
-// Worst-case reset time is WS2811 at 300µs = 24000 ticks at 80MHz, well within
-// the 15-bit rmt_symbol_word_t duration field max of 32767.
-static uint32_t rmt_resolution_hz() {
-  uint32_t freq;
-  esp_clk_tree_src_get_freq_hz((soc_module_clk_t) RMT_CLK_SRC_DEFAULT, ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED, &freq);
-  return freq;
-}
+static const size_t RMT_SYMBOLS_PER_BYTE = 8;
 
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
 static size_t IRAM_ATTR HOT encoder_callback(const void *data, size_t size, size_t symbols_written, size_t symbols_free,
@@ -95,7 +92,7 @@ void ESP32RMTLEDStripLightOutput::setup() {
   rmt_tx_channel_config_t channel;
   memset(&channel, 0, sizeof(channel));
   channel.clk_src = RMT_CLK_SRC_DEFAULT;
-  channel.resolution_hz = rmt_resolution_hz();
+  channel.resolution_hz = RMT_CLK_FREQ / RMT_CLK_DIV;
   channel.gpio_num = gpio_num_t(this->pin_);
   channel.mem_block_symbols = this->rmt_symbols_;
   channel.trans_queue_depth = 1;
@@ -140,7 +137,7 @@ void ESP32RMTLEDStripLightOutput::setup() {
 
 void ESP32RMTLEDStripLightOutput::set_led_params(uint32_t bit0_high, uint32_t bit0_low, uint32_t bit1_high,
                                                  uint32_t bit1_low, uint32_t reset_time_high, uint32_t reset_time_low) {
-  float ratio = (float) rmt_resolution_hz() / 1e09f;
+  float ratio = (float) RMT_CLK_FREQ / RMT_CLK_DIV / 1e09f;
 
   // 0-bit
   this->params_.bit0.duration0 = (uint32_t) (ratio * bit0_high);

esphome/components/esp8266/preferences.cpp

@@ -33,10 +33,6 @@ static constexpr uint32_t MAX_PREFERENCE_WORDS = 255;
 
 #define ESP_RTC_USER_MEM ((uint32_t *) ESP_RTC_USER_MEM_START)
 
-// Flash storage size depends on esp8266 -> restore_from_flash YAML option (default: false).
-// When enabled (USE_ESP8266_PREFERENCES_FLASH), all preferences default to flash and need
-// 128 words (512 bytes). When disabled, only explicit flash prefs use this storage so
-// 64 words (256 bytes) suffices since most preferences go to RTC memory instead.
 #ifdef USE_ESP8266_PREFERENCES_FLASH
 static constexpr uint32_t ESP8266_FLASH_STORAGE_SIZE = 128;
 #else
@@ -131,11 +127,9 @@ static bool load_from_rtc(size_t offset, uint32_t *data, size_t len) {
   return true;
 }
 
-// Maximum buffer for any single preference - bounded by storage sizes.
-// Flash prefs: bounded by ESP8266_FLASH_STORAGE_SIZE (128 or 64 words).
-// RTC prefs: bounded by RTC_NORMAL_REGION_WORDS (96) - a single pref can't span both RTC regions.
-static constexpr size_t PREF_MAX_BUFFER_WORDS =
-    ESP8266_FLASH_STORAGE_SIZE > RTC_NORMAL_REGION_WORDS ? ESP8266_FLASH_STORAGE_SIZE : RTC_NORMAL_REGION_WORDS;
+// Stack buffer size - 16 words total: up to 15 words of preference data + 1 word CRC (60 bytes of preference data)
+// This handles virtually all real-world preferences without heap allocation
+static constexpr size_t PREF_BUFFER_WORDS = 16;
 
 class ESP8266PreferenceBackend : public ESPPreferenceBackend {
  public:
@@ -147,13 +141,15 @@ class ESP8266PreferenceBackend : public ESPPreferenceBackend {
   bool save(const uint8_t *data, size_t len) override {
     if (bytes_to_words(len) != this->length_words)
       return false;
+
     const size_t buffer_size = static_cast<size_t>(this->length_words) + 1;
-    if (buffer_size > PREF_MAX_BUFFER_WORDS)
-      return false;
-    uint32_t buffer[PREF_MAX_BUFFER_WORDS];
+    SmallBufferWithHeapFallback<PREF_BUFFER_WORDS, uint32_t> buffer_alloc(buffer_size);
+    uint32_t *buffer = buffer_alloc.get();
     memset(buffer, 0, buffer_size * sizeof(uint32_t));
+
     memcpy(buffer, data, len);
     buffer[this->length_words] = calculate_crc(buffer, buffer + this->length_words, this->type);
+
     return this->in_flash ? save_to_flash(this->offset, buffer, buffer_size)
                           : save_to_rtc(this->offset, buffer, buffer_size);
   }
@@ -161,16 +157,19 @@ class ESP8266PreferenceBackend : public ESPPreferenceBackend {
   bool load(uint8_t *data, size_t len) override {
     if (bytes_to_words(len) != this->length_words)
       return false;
+
     const size_t buffer_size = static_cast<size_t>(this->length_words) + 1;
-    if (buffer_size > PREF_MAX_BUFFER_WORDS)
-      return false;
-    uint32_t buffer[PREF_MAX_BUFFER_WORDS];
+    SmallBufferWithHeapFallback<PREF_BUFFER_WORDS, uint32_t> buffer_alloc(buffer_size);
+    uint32_t *buffer = buffer_alloc.get();
+
     bool ret = this->in_flash ? load_from_flash(this->offset, buffer, buffer_size)
                               : load_from_rtc(this->offset, buffer, buffer_size);
     if (!ret)
       return false;
+
     if (buffer[this->length_words] != calculate_crc(buffer, buffer + this->length_words, this->type))
       return false;
+
     memcpy(data, buffer, len);
     return true;
   }

esphome/components/hlk_fm22x/hlk_fm22x.cpp

@@ -1,16 +1,20 @@
 #include "hlk_fm22x.h"
 #include "esphome/core/log.h"
 #include "esphome/core/helpers.h"
+#include <array>
 #include <cinttypes>
 
 namespace esphome::hlk_fm22x {
 
 static const char *const TAG = "hlk_fm22x";
 
+// Maximum response size is 36 bytes (VERIFY reply: face_id + 32-byte name)
+static constexpr size_t HLK_FM22X_MAX_RESPONSE_SIZE = 36;
+
 void HlkFm22xComponent::setup() {
   ESP_LOGCONFIG(TAG, "Setting up HLK-FM22X...");
   this->set_enrolling_(false);
-  while (this->available() > 0) {
+  while (this->available()) {
     this->read();
   }
   this->defer([this]() { this->send_command_(HlkFm22xCommand::GET_STATUS); });
@@ -31,7 +35,7 @@ void HlkFm22xComponent::update() {
 }
 
 void HlkFm22xComponent::enroll_face(const std::string &name, HlkFm22xFaceDirection direction) {
-  if (name.length() > HLK_FM22X_NAME_SIZE - 1) {
+  if (name.length() > 31) {
     ESP_LOGE(TAG, "enroll_face(): name too long '%s'", name.c_str());
     return;
   }
@@ -84,7 +88,7 @@ void HlkFm22xComponent::send_command_(HlkFm22xCommand command, const uint8_t *da
   }
   this->wait_cycles_ = 0;
   this->active_command_ = command;
-  while (this->available() > 0)
+  while (this->available())
     this->read();
   this->write((uint8_t) (START_CODE >> 8));
   this->write((uint8_t) (START_CODE & 0xFF));
@@ -133,24 +137,17 @@ void HlkFm22xComponent::recv_command_() {
   checksum ^= byte;
   length |= byte;
 
-  if (length > HLK_FM22X_MAX_RESPONSE_SIZE) {
-    ESP_LOGE(TAG, "Response too large: %u bytes", length);
-    // Discard exactly the remaining payload and checksum for this frame
-    for (uint16_t i = 0; i < length + 1 && this->available() > 0; ++i)
-      this->read();
-    return;
-  }
-
+  std::vector<uint8_t> data;
+  data.reserve(length);
   for (uint16_t idx = 0; idx < length; ++idx) {
     byte = this->read();
     checksum ^= byte;
-    this->recv_buf_[idx] = byte;
+    data.push_back(byte);
   }
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
   char hex_buf[format_hex_pretty_size(HLK_FM22X_MAX_RESPONSE_SIZE)];
-  ESP_LOGV(TAG, "Recv type: 0x%.2X, data: %s", response_type,
-           format_hex_pretty_to(hex_buf, this->recv_buf_.data(), length));
+  ESP_LOGV(TAG, "Recv type: 0x%.2X, data: %s", response_type, format_hex_pretty_to(hex_buf, data.data(), data.size()));
 #endif
 
   byte = this->read();
@@ -160,10 +157,10 @@ void HlkFm22xComponent::recv_command_() {
   }
   switch (response_type) {
     case HlkFm22xResponseType::NOTE:
-      this->handle_note_(this->recv_buf_.data(), length);
+      this->handle_note_(data);
       break;
     case HlkFm22xResponseType::REPLY:
-      this->handle_reply_(this->recv_buf_.data(), length);
+      this->handle_reply_(data);
       break;
     default:
       ESP_LOGW(TAG, "Unexpected response type: 0x%.2X", response_type);
@@ -171,15 +168,11 @@ void HlkFm22xComponent::recv_command_() {
   }
 }
 
-void HlkFm22xComponent::handle_note_(const uint8_t *data, size_t length) {
-  if (length < 1) {
-    ESP_LOGE(TAG, "Empty note data");
-    return;
-  }
+void HlkFm22xComponent::handle_note_(const std::vector<uint8_t> &data) {
   switch (data[0]) {
     case HlkFm22xNoteType::FACE_STATE:
-      if (length < 17) {
-        ESP_LOGE(TAG, "Invalid face note data size: %zu", length);
+      if (data.size() < 17) {
+        ESP_LOGE(TAG, "Invalid face note data size: %u", data.size());
         break;
       }
       {
@@ -216,13 +209,9 @@ void HlkFm22xComponent::handle_note_(const uint8_t *data, size_t length) {
   }
 }
 
-void HlkFm22xComponent::handle_reply_(const uint8_t *data, size_t length) {
+void HlkFm22xComponent::handle_reply_(const std::vector<uint8_t> &data) {
   auto expected = this->active_command_;
   this->active_command_ = HlkFm22xCommand::NONE;
-  if (length < 2) {
-    ESP_LOGE(TAG, "Reply too short: %zu bytes", length);
-    return;
-  }
   if (data[0] != (uint8_t) expected) {
     ESP_LOGE(TAG, "Unexpected response command. Expected: 0x%.2X, Received: 0x%.2X", expected, data[0]);
     return;
@@ -249,20 +238,16 @@ void HlkFm22xComponent::handle_reply_(const uint8_t *data, size_t length) {
   }
   switch (expected) {
     case HlkFm22xCommand::VERIFY: {
-      if (length < 4 + HLK_FM22X_NAME_SIZE) {
-        ESP_LOGE(TAG, "VERIFY response too short: %zu bytes", length);
-        break;
-      }
       int16_t face_id = ((int16_t) data[2] << 8) | data[3];
-      const char *name_ptr = reinterpret_cast<const char *>(data + 4);
-      ESP_LOGD(TAG, "Face verified. ID: %d, name: %.*s", face_id, (int) HLK_FM22X_NAME_SIZE, name_ptr);
+      std::string name(data.begin() + 4, data.begin() + 36);
+      ESP_LOGD(TAG, "Face verified. ID: %d, name: %s", face_id, name.c_str());
       if (this->last_face_id_sensor_ != nullptr) {
         this->last_face_id_sensor_->publish_state(face_id);
       }
       if (this->last_face_name_text_sensor_ != nullptr) {
-        this->last_face_name_text_sensor_->publish_state(name_ptr, HLK_FM22X_NAME_SIZE);
+        this->last_face_name_text_sensor_->publish_state(name);
       }
-      this->face_scan_matched_callback_.call(face_id, std::string(name_ptr, HLK_FM22X_NAME_SIZE));
+      this->face_scan_matched_callback_.call(face_id, name);
       break;
     }
     case HlkFm22xCommand::ENROLL: {
@@ -281,8 +266,9 @@ void HlkFm22xComponent::handle_reply_(const uint8_t *data, size_t length) {
       this->defer([this]() { this->send_command_(HlkFm22xCommand::GET_VERSION); });
       break;
     case HlkFm22xCommand::GET_VERSION:
-      if (this->version_text_sensor_ != nullptr && length > 2) {
-        this->version_text_sensor_->publish_state(reinterpret_cast<const char *>(data + 2), length - 2);
+      if (this->version_text_sensor_ != nullptr) {
+        std::string version(data.begin() + 2, data.end());
+        this->version_text_sensor_->publish_state(version);
       }
       this->defer([this]() { this->get_face_count_(); });
       break;

esphome/components/hlk_fm22x/hlk_fm22x.h

@@ -7,15 +7,12 @@
 #include "esphome/components/text_sensor/text_sensor.h"
 #include "esphome/components/uart/uart.h"
 
-#include <array>
 #include <utility>
+#include <vector>
 
 namespace esphome::hlk_fm22x {
 
 static const uint16_t START_CODE = 0xEFAA;
-static constexpr size_t HLK_FM22X_NAME_SIZE = 32;
-// Maximum response payload: command(1) + result(1) + face_id(2) + name(32) = 36
-static constexpr size_t HLK_FM22X_MAX_RESPONSE_SIZE = 36;
 enum HlkFm22xCommand {
   NONE = 0x00,
   RESET = 0x10,
@@ -121,11 +118,10 @@ class HlkFm22xComponent : public PollingComponent, public uart::UARTDevice {
   void get_face_count_();
   void send_command_(HlkFm22xCommand command, const uint8_t *data = nullptr, size_t size = 0);
   void recv_command_();
-  void handle_note_(const uint8_t *data, size_t length);
-  void handle_reply_(const uint8_t *data, size_t length);
+  void handle_note_(const std::vector<uint8_t> &data);
+  void handle_reply_(const std::vector<uint8_t> &data);
   void set_enrolling_(bool enrolling);
 
-  std::array<uint8_t, HLK_FM22X_MAX_RESPONSE_SIZE> recv_buf_;
   HlkFm22xCommand active_command_ = HlkFm22xCommand::NONE;
   uint16_t wait_cycles_ = 0;
   sensor::Sensor *face_count_sensor_{nullptr};

esphome/components/hlw8012/sensor.py

@@ -94,7 +94,10 @@ CONFIG_SCHEMA = cv.Schema(
 
 async def to_code(config):
     if CORE.is_esp32:
-        include_builtin_idf_component("esp_driver_pcnt")
+        # Re-enable ESP-IDF's legacy driver component (excluded by default to save compile time)
+        # HLW8012 uses pulse_counter's PCNT storage which requires driver/pcnt.h
+        # TODO: Remove this once pulse_counter migrates to new PCNT API (driver/pulse_cnt.h)
+        include_builtin_idf_component("driver")
 
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)

esphome/components/http_request/http_request.h

@@ -103,42 +103,6 @@ inline bool is_success(int const status) { return status >= HTTP_STATUS_OK && st
  *   - ESP-IDF: blocking reads, 0 only returned when all content read
  *   - Arduino: non-blocking, 0 means "no data yet" or "all content read"
  *
- * Chunked responses that complete in a reasonable time work correctly on both
- * platforms. The limitation below applies only to *streaming* chunked
- * responses where data arrives slowly over a long period.
- *
- * Streaming chunked responses are NOT supported (all platforms):
- *   The read helpers (http_read_loop_result, http_read_fully) block the main
- *   event loop until all response data is received. For streaming responses
- *   where data trickles in slowly (e.g., TTS streaming via ffmpeg proxy),
- *   this starves the event loop on both ESP-IDF and Arduino. If data arrives
- *   just often enough to avoid the caller's timeout, the loop runs
- *   indefinitely. If data stops entirely, ESP-IDF fails with
- *   -ESP_ERR_HTTP_EAGAIN (transport timeout) while Arduino spins with
- *   delay(1) until the caller's timeout fires. Supporting streaming requires
- *   a non-blocking incremental read pattern that yields back to the event
- *   loop between chunks. Components that need streaming should use
- *   esp_http_client directly on a separate FreeRTOS task with
- *   esp_http_client_is_complete_data_received() for completion detection
- *   (see audio_reader.cpp for an example).
- *
- * Chunked transfer encoding - platform differences:
- *   - ESP-IDF HttpContainer:
- *       HttpContainerIDF overrides is_read_complete() to call
- *       esp_http_client_is_complete_data_received(), which is the
- *       authoritative completion check for both chunked and non-chunked
- *       transfers. When esp_http_client_read() returns 0 for a completed
- *       chunked response, read() returns 0 and is_read_complete() returns
- *       true, so callers get COMPLETE from http_read_loop_result().
- *
- *   - Arduino HttpContainer:
- *       Chunked responses are decoded internally (see
- *       HttpContainerArduino::read_chunked_()). When the final chunk arrives,
- *       is_chunked_ is cleared and content_length is set to bytes_read_.
- *       Completion is then detected via is_read_complete(), and a subsequent
- *       read() returns 0 to indicate "all content read" (not
- *       HTTP_ERROR_CONNECTION_CLOSED).
- *
  * Use the helper functions below instead of checking return values directly:
  *   - http_read_loop_result(): for manual loops with per-chunk processing
  *   - http_read_fully(): for simple "read N bytes into buffer" operations
@@ -240,13 +204,9 @@ class HttpContainer : public Parented<HttpRequestComponent> {
 
   size_t get_bytes_read() const { return this->bytes_read_; }
 
-  /// Check if all expected content has been read.
-  /// Base implementation handles non-chunked responses and status-code-based no-body checks.
-  /// Platform implementations may override for chunked completion detection:
-  ///   - ESP-IDF: overrides to call esp_http_client_is_complete_data_received() for chunked.
-  ///   - Arduino: read_chunked_() clears is_chunked_ and sets content_length on the final
-  ///     chunk, after which the base implementation detects completion.
-  virtual bool is_read_complete() const {
+  /// Check if all expected content has been read
+  /// For chunked responses, returns false (completion detected via read() returning error/EOF)
+  bool is_read_complete() const {
     // Per RFC 9112, these responses have no body:
     // - 1xx (Informational), 204 No Content, 205 Reset Content, 304 Not Modified
     if ((this->status_code >= 100 && this->status_code < 200) || this->status_code == HTTP_STATUS_NO_CONTENT ||

esphome/components/http_request/http_request_idf.cpp

@@ -218,50 +218,32 @@ std::shared_ptr<HttpContainer> HttpRequestIDF::perform(const std::string &url, c
   return container;
 }
 
-bool HttpContainerIDF::is_read_complete() const {
-  // Base class handles no-body status codes and non-chunked content_length completion
-  if (HttpContainer::is_read_complete()) {
-    return true;
-  }
-  // For chunked responses, use the authoritative ESP-IDF completion check
-  return this->is_chunked_ && esp_http_client_is_complete_data_received(this->client_);
-}
-
 // ESP-IDF HTTP read implementation (blocking mode)
 //
 // WARNING: Return values differ from BSD sockets! See http_request.h for full documentation.
 //
 // esp_http_client_read() in blocking mode returns:
 //   > 0: bytes read
-//   0: all chunked data received (is_chunk_complete true) or connection closed
-//   -ESP_ERR_HTTP_EAGAIN: transport timeout, no data available yet
+//   0: connection closed (end of stream)
 //   < 0: error
 //
 // We normalize to HttpContainer::read() contract:
 //   > 0: bytes read
-//   0: all content read (for both content_length-based and chunked completion)
+//   0: all content read (only returned when content_length is known and fully read)
 //   < 0: error/connection closed
 //
 // Note on chunked transfer encoding:
 //   esp_http_client_fetch_headers() returns 0 for chunked responses (no Content-Length header).
-//   When esp_http_client_read() returns 0 for a chunked response, is_read_complete() calls
-//   esp_http_client_is_complete_data_received() to distinguish successful completion from
-//   connection errors. Callers use http_read_loop_result() which checks is_read_complete()
-//   to return COMPLETE for successful chunked EOF.
-//
-// Streaming chunked responses are not supported (see http_request.h for details).
-// When data stops arriving, esp_http_client_read() returns -ESP_ERR_HTTP_EAGAIN
-// after its internal transport timeout (configured via timeout_ms) expires.
-// This is passed through as a negative return value, which callers treat as an error.
+//   We handle this by skipping the content_length check when content_length is 0,
+//   allowing esp_http_client_read() to handle chunked decoding internally and signal EOF
+//   by returning 0.
 int HttpContainerIDF::read(uint8_t *buf, size_t max_len) {
   const uint32_t start = millis();
   watchdog::WatchdogManager wdm(this->parent_->get_watchdog_timeout());
 
-  // Check if we've already read all expected content (non-chunked and no-body only).
-  // Use the base class check here, NOT the override: esp_http_client_is_complete_data_received()
-  // returns true as soon as all data arrives from the network, but data may still be in
-  // the client's internal buffer waiting to be consumed by esp_http_client_read().
-  if (HttpContainer::is_read_complete()) {
+  // Check if we've already read all expected content (non-chunked only)
+  // For chunked responses (content_length == 0), esp_http_client_read() handles EOF
+  if (this->is_read_complete()) {
     return 0;  // All content read successfully
   }
 
@@ -276,18 +258,15 @@ int HttpContainerIDF::read(uint8_t *buf, size_t max_len) {
     return read_len_or_error;
   }
 
-  // esp_http_client_read() returns 0 when:
-  // - Known content_length: connection closed before all data received (error)
-  // - Chunked encoding: all chunks received (is_chunk_complete true, genuine EOF)
-  //
-  // Return 0 in both cases. Callers use http_read_loop_result() which calls
-  // is_read_complete() to distinguish these:
-  // - Chunked complete: is_read_complete() returns true (via
-  //   esp_http_client_is_complete_data_received()), caller gets COMPLETE
-  // - Non-chunked incomplete: is_read_complete() returns false, caller
-  //   eventually gets TIMEOUT (since no more data arrives)
+  // esp_http_client_read() returns 0 in two cases:
+  // 1. Known content_length: connection closed before all data received (error)
+  // 2. Chunked encoding (content_length == 0): end of stream reached (EOF)
+  // For case 1, returning HTTP_ERROR_CONNECTION_CLOSED is correct.
+  // For case 2, 0 indicates that all chunked data has already been delivered
+  // in previous successful read() calls, so treating this as a closed
+  // connection does not cause any loss of response data.
   if (read_len_or_error == 0) {
-    return 0;
+    return HTTP_ERROR_CONNECTION_CLOSED;
   }
 
   // Negative value - error, return the actual error code for debugging

esphome/components/http_request/http_request_idf.h

@@ -16,7 +16,6 @@ class HttpContainerIDF : public HttpContainer {
   HttpContainerIDF(esp_http_client_handle_t client) : client_(client) {}
   int read(uint8_t *buf, size_t max_len) override;
   void end() override;
-  bool is_read_complete() const override;
 
   /// @brief Feeds the watchdog timer if the executing task has one attached
   void feed_wdt();

esphome/components/http_request/update/http_request_update.cpp

@@ -90,14 +90,16 @@ void HttpRequestUpdate::update_task(void *params) {
     UPDATE_RETURN;
   }
   size_t read_index = container->get_bytes_read();
-  size_t content_length = container->content_length;
-
-  container->end();
-  container.reset();  // Release ownership of the container's shared_ptr
 
   bool valid = false;
-  {  // Scope to ensure JsonDocument is destroyed before deallocating buffer
-    valid = json::parse_json(data, read_index, [this_update](JsonObject root) -> bool {
+  {  // Ensures the response string falls out of scope and deallocates before the task ends
+    std::string response((char *) data, read_index);
+    allocator.deallocate(data, container->content_length);
+
+    container->end();
+    container.reset();  // Release ownership of the container's shared_ptr
+
+    valid = json::parse_json(response, [this_update](JsonObject root) -> bool {
       if (!root[ESPHOME_F("name")].is<const char *>() || !root[ESPHOME_F("version")].is<const char *>() ||
           !root[ESPHOME_F("builds")].is<JsonArray>()) {
         ESP_LOGE(TAG, "Manifest does not contain required fields");
@@ -135,7 +137,6 @@ void HttpRequestUpdate::update_task(void *params) {
       return false;
     });
   }
-  allocator.deallocate(data, content_length);
 
   if (!valid) {
     ESP_LOGE(TAG, "Failed to parse JSON from %s", this_update->source_url_.c_str());
@@ -156,12 +157,17 @@ void HttpRequestUpdate::update_task(void *params) {
     }
   }
 
+  {  // Ensures the current version string falls out of scope and deallocates before the task ends
+    std::string current_version;
 #ifdef ESPHOME_PROJECT_VERSION
-  this_update->update_info_.current_version = ESPHOME_PROJECT_VERSION;
+    current_version = ESPHOME_PROJECT_VERSION;
 #else
-  this_update->update_info_.current_version = ESPHOME_VERSION;
+    current_version = ESPHOME_VERSION;
 #endif
 
+    this_update->update_info_.current_version = current_version;
+  }
+
   bool trigger_update_available = false;
 
   if (this_update->update_info_.latest_version.empty() ||

esphome/components/i2c/i2c_bus_arduino.cpp

@@ -134,23 +134,25 @@ ErrorCode ArduinoI2CBus::write_readv(uint8_t address, const uint8_t *write_buffe
     for (size_t j = 0; j != read_count; j++)
       read_buffer[j] = wire_->read();
   }
-  // Avoid switch to prevent compiler-generated lookup table in RAM on ESP8266
-  if (status == 0)
-    return ERROR_OK;
-  if (status == 1) {
-    ESP_LOGVV(TAG, "TX failed: buffer not large enough");
-    return ERROR_UNKNOWN;
+  switch (status) {
+    case 0:
+      return ERROR_OK;
+    case 1:
+      // transmit buffer not large enough
+      ESP_LOGVV(TAG, "TX failed: buffer not large enough");
+      return ERROR_UNKNOWN;
+    case 2:
+    case 3:
+      ESP_LOGVV(TAG, "TX failed: not acknowledged: %d", status);
+      return ERROR_NOT_ACKNOWLEDGED;
+    case 5:
+      ESP_LOGVV(TAG, "TX failed: timeout");
+      return ERROR_UNKNOWN;
+    case 4:
+    default:
+      ESP_LOGVV(TAG, "TX failed: unknown error %u", status);
+      return ERROR_UNKNOWN;
   }
-  if (status == 2 || status == 3) {
-    ESP_LOGVV(TAG, "TX failed: not acknowledged: %u", status);
-    return ERROR_NOT_ACKNOWLEDGED;
-  }
-  if (status == 5) {
-    ESP_LOGVV(TAG, "TX failed: timeout");
-    return ERROR_UNKNOWN;
-  }
-  ESP_LOGVV(TAG, "TX failed: unknown error %u", status);
-  return ERROR_UNKNOWN;
 }
 
 /// Perform I2C bus recovery, see:

esphome/components/improv_serial/improv_serial_component.cpp

@@ -235,8 +235,8 @@ bool ImprovSerialComponent::parse_improv_payload_(improv::ImprovCommand &command
   switch (command.command) {
     case improv::WIFI_SETTINGS: {
       wifi::WiFiAP sta{};
-      sta.set_ssid(command.ssid.c_str());
-      sta.set_password(command.password.c_str());
+      sta.set_ssid(command.ssid);
+      sta.set_password(command.password);
       this->connecting_sta_ = sta;
 
       wifi::global_wifi_component->set_sta(sta);
@@ -267,26 +267,16 @@ bool ImprovSerialComponent::parse_improv_payload_(improv::ImprovCommand &command
       for (auto &scan : results) {
         if (scan.get_is_hidden())
           continue;
-        const char *ssid_cstr = scan.get_ssid().c_str();
-        // Check if we've already sent this SSID
-        bool duplicate = false;
-        for (const auto &seen : networks) {
-          if (strcmp(seen.c_str(), ssid_cstr) == 0) {
-            duplicate = true;
-            break;
-          }
-        }
-        if (duplicate)
+        const std::string &ssid = scan.get_ssid();
+        if (std::find(networks.begin(), networks.end(), ssid) != networks.end())
           continue;
-        // Only allocate std::string after confirming it's not a duplicate
-        std::string ssid(ssid_cstr);
         // Send each ssid separately to avoid overflowing the buffer
         char rssi_buf[5];  // int8_t: -128 to 127, max 4 chars + null
         *int8_to_str(rssi_buf, scan.get_rssi()) = '\0';
         std::vector<uint8_t> data =
             improv::build_rpc_response(improv::GET_WIFI_NETWORKS, {ssid, rssi_buf, YESNO(scan.get_with_auth())}, false);
         this->send_response_(data);
-        networks.push_back(std::move(ssid));
+        networks.push_back(ssid);
       }
       // Send empty response to signify the end of the list.
       std::vector<uint8_t> data =

esphome/components/json/json_util.cpp

@@ -25,13 +25,8 @@ std::string build_json(const json_build_t &f) {
 }
 
 bool parse_json(const std::string &data, const json_parse_t &f) {
-  // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
-  return parse_json(reinterpret_cast<const uint8_t *>(data.c_str()), data.size(), f);
-}
-
-bool parse_json(const uint8_t *data, size_t len, const json_parse_t &f) {
   // NOLINTBEGIN(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
-  JsonDocument doc = parse_json(data, len);
+  JsonDocument doc = parse_json(reinterpret_cast<const uint8_t *>(data.c_str()), data.size());
   if (doc.overflowed() || doc.isNull())
     return false;
   return f(doc.as<JsonObject>());

esphome/components/json/json_util.h

@@ -50,8 +50,6 @@ std::string build_json(const json_build_t &f);
 
 /// Parse a JSON string and run the provided json parse function if it's valid.
 bool parse_json(const std::string &data, const json_parse_t &f);
-/// Parse JSON from raw bytes and run the provided json parse function if it's valid.
-bool parse_json(const uint8_t *data, size_t len, const json_parse_t &f);
 
 /// Parse a JSON string and return the root JsonDocument (or an unbound object on error)
 JsonDocument parse_json(const uint8_t *data, size_t len);

esphome/components/ld2410/ld2410.cpp

@@ -276,10 +276,10 @@ void LD2410Component::restart_and_read_all_info() {
 
 void LD2410Component::loop() {
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[MAX_LINE_LENGTH];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }

esphome/components/ld2412/ld2412.cpp

@@ -311,10 +311,10 @@ void LD2412Component::restart_and_read_all_info() {
 
 void LD2412Component::loop() {
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[MAX_LINE_LENGTH];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }

esphome/components/ld2420/ld2420.cpp

@@ -542,10 +542,10 @@ void LD2420Component::handle_simple_mode_(const uint8_t *inbuf, int len) {
 
 void LD2420Component::read_batch_(std::span<uint8_t, MAX_LINE_LENGTH> buffer) {
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[MAX_LINE_LENGTH];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }

esphome/components/ld2450/__init__.py

@@ -1,8 +1,7 @@
-from esphome import automation
 import esphome.codegen as cg
 from esphome.components import uart
 import esphome.config_validation as cv
-from esphome.const import CONF_ID, CONF_ON_DATA, CONF_THROTTLE, CONF_TRIGGER_ID
+from esphome.const import CONF_ID, CONF_THROTTLE
 
 AUTO_LOAD = ["ld24xx"]
 DEPENDENCIES = ["uart"]
@@ -12,8 +11,6 @@ MULTI_CONF = True
 ld2450_ns = cg.esphome_ns.namespace("ld2450")
 LD2450Component = ld2450_ns.class_("LD2450Component", cg.Component, uart.UARTDevice)
 
-LD2450DataTrigger = ld2450_ns.class_("LD2450DataTrigger", automation.Trigger.template())
-
 CONF_LD2450_ID = "ld2450_id"
 
 CONFIG_SCHEMA = cv.All(
@@ -23,11 +20,6 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_THROTTLE): cv.invalid(
                 f"{CONF_THROTTLE} has been removed; use per-sensor filters, instead"
             ),
-            cv.Optional(CONF_ON_DATA): automation.validate_automation(
-                {
-                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(LD2450DataTrigger),
-                }
-            ),
         }
     )
     .extend(uart.UART_DEVICE_SCHEMA)
@@ -53,6 +45,3 @@ async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
     await uart.register_uart_device(var, config)
-    for conf in config.get(CONF_ON_DATA, []):
-        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
-        await automation.build_automation(trigger, [], conf)

esphome/components/ld2450/ld2450.cpp

@@ -277,10 +277,10 @@ void LD2450Component::dump_config() {
 
 void LD2450Component::loop() {
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[MAX_LINE_LENGTH];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }
@@ -413,10 +413,6 @@ void LD2450Component::restart_and_read_all_info() {
   this->set_timeout(1500, [this]() { this->read_all_info(); });
 }
 
-void LD2450Component::add_on_data_callback(std::function<void()> &&callback) {
-  this->data_callback_.add(std::move(callback));
-}
-
 // Send command with values to LD2450
 void LD2450Component::send_command_(uint8_t command, const uint8_t *command_value, uint8_t command_value_len) {
   ESP_LOGV(TAG, "Sending COMMAND %02X", command);
@@ -617,8 +613,6 @@ void LD2450Component::handle_periodic_data_() {
     this->still_presence_millis_ = App.get_loop_component_start_time();
   }
 #endif
-
-  this->data_callback_.call();
 }
 
 bool LD2450Component::handle_ack_data_() {

esphome/components/ld2450/ld2450.h

@@ -141,9 +141,6 @@ class LD2450Component : public Component, public uart::UARTDevice {
                       int32_t zone2_x1, int32_t zone2_y1, int32_t zone2_x2, int32_t zone2_y2, int32_t zone3_x1,
                       int32_t zone3_y1, int32_t zone3_x2, int32_t zone3_y2);
 
-  /// Add a callback that will be called after each successfully processed periodic data frame.
-  void add_on_data_callback(std::function<void()> &&callback);
-
  protected:
   void send_command_(uint8_t command_str, const uint8_t *command_value, uint8_t command_value_len);
   void set_config_mode_(bool enable);
@@ -193,15 +190,6 @@ class LD2450Component : public Component, public uart::UARTDevice {
 #ifdef USE_TEXT_SENSOR
   std::array<text_sensor::TextSensor *, 3> direction_text_sensors_{};
 #endif
-
-  LazyCallbackManager<void()> data_callback_;
-};
-
-class LD2450DataTrigger : public Trigger<> {
- public:
-  explicit LD2450DataTrigger(LD2450Component *parent) {
-    parent->add_on_data_callback([this]() { this->trigger(); });
-  }
 };
 
 }  // namespace esphome::ld2450

esphome/components/libretiny/__init__.py

@@ -193,14 +193,14 @@ def _notify_old_style(config):
 # The dev and latest branches will be at *least* this version, which is what matters.
 # Use GitHub releases directly to avoid PlatformIO moderation delays.
 ARDUINO_VERSIONS = {
-    "dev": (cv.Version(1, 12, 1), "https://github.com/libretiny-eu/libretiny.git"),
+    "dev": (cv.Version(1, 11, 0), "https://github.com/libretiny-eu/libretiny.git"),
     "latest": (
-        cv.Version(1, 12, 1),
-        "https://github.com/libretiny-eu/libretiny.git#v1.12.1",
+        cv.Version(1, 11, 0),
+        "https://github.com/libretiny-eu/libretiny.git#v1.11.0",
     ),
     "recommended": (
-        cv.Version(1, 12, 1),
-        "https://github.com/libretiny-eu/libretiny.git#v1.12.1",
+        cv.Version(1, 11, 0),
+        "https://github.com/libretiny-eu/libretiny.git#v1.11.0",
     ),
 }
 

esphome/components/libretiny/preferences.cpp

@@ -114,11 +114,14 @@ class LibreTinyPreferences : public ESPPreferences {
       return true;
 
     ESP_LOGV(TAG, "Saving %zu items...", s_pending_save.size());
+    // goal try write all pending saves even if one fails
     int cached = 0, written = 0, failed = 0;
     fdb_err_t last_err = FDB_NO_ERR;
     uint32_t last_key = 0;
 
-    for (const auto &save : s_pending_save) {
+    // go through vector from back to front (makes erase easier/more efficient)
+    for (ssize_t i = s_pending_save.size() - 1; i >= 0; i--) {
+      const auto &save = s_pending_save[i];
       char key_str[KEY_BUFFER_SIZE];
       snprintf(key_str, sizeof(key_str), "%" PRIu32, save.key);
       ESP_LOGVV(TAG, "Checking if FDB data %s has changed", key_str);
@@ -138,9 +141,8 @@ class LibreTinyPreferences : public ESPPreferences {
         ESP_LOGD(TAG, "FDB data not changed; skipping %" PRIu32 "  len=%zu", save.key, save.len);
         cached++;
       }
+      s_pending_save.erase(s_pending_save.begin() + i);
     }
-    s_pending_save.clear();
-
     ESP_LOGD(TAG, "Writing %d items: %d cached, %d written, %d failed", cached + written + failed, cached, written,
              failed);
     if (failed > 0) {

esphome/components/light/light_call.cpp

@@ -270,23 +270,22 @@ LightColorValues LightCall::validate_() {
   if (this->has_state())
     v.set_state(this->state_);
 
-    // clamp_and_log_if_invalid already clamps in-place, so assign directly
-    // to avoid redundant clamp code from the setter being inlined.
-#define VALIDATE_AND_APPLY(field, name_str, ...) \
+#define VALIDATE_AND_APPLY(field, setter, name_str, ...) \
   if (this->has_##field()) { \
     clamp_and_log_if_invalid(name, this->field##_, LOG_STR(name_str), ##__VA_ARGS__); \
-    v.field##_ = this->field##_; \
+    v.setter(this->field##_); \
   }
 
-  VALIDATE_AND_APPLY(brightness, "Brightness")
-  VALIDATE_AND_APPLY(color_brightness, "Color brightness")
-  VALIDATE_AND_APPLY(red, "Red")
-  VALIDATE_AND_APPLY(green, "Green")
-  VALIDATE_AND_APPLY(blue, "Blue")
-  VALIDATE_AND_APPLY(white, "White")
-  VALIDATE_AND_APPLY(cold_white, "Cold white")
-  VALIDATE_AND_APPLY(warm_white, "Warm white")
-  VALIDATE_AND_APPLY(color_temperature, "Color temperature", traits.get_min_mireds(), traits.get_max_mireds())
+  VALIDATE_AND_APPLY(brightness, set_brightness, "Brightness")
+  VALIDATE_AND_APPLY(color_brightness, set_color_brightness, "Color brightness")
+  VALIDATE_AND_APPLY(red, set_red, "Red")
+  VALIDATE_AND_APPLY(green, set_green, "Green")
+  VALIDATE_AND_APPLY(blue, set_blue, "Blue")
+  VALIDATE_AND_APPLY(white, set_white, "White")
+  VALIDATE_AND_APPLY(cold_white, set_cold_white, "Cold white")
+  VALIDATE_AND_APPLY(warm_white, set_warm_white, "Warm white")
+  VALIDATE_AND_APPLY(color_temperature, set_color_temperature, "Color temperature", traits.get_min_mireds(),
+                     traits.get_max_mireds())
 
 #undef VALIDATE_AND_APPLY
 

esphome/components/light/light_color_values.h

@@ -95,18 +95,15 @@ class LightColorValues {
    */
   void normalize_color() {
     if (this->color_mode_ & ColorCapability::RGB) {
-      float max_value = fmaxf(this->red_, fmaxf(this->green_, this->blue_));
-      // Assign directly to avoid redundant clamp in set_red/green/blue.
-      // Values are guaranteed in [0,1]: inputs are already clamped to [0,1],
-      // and dividing by max_value (the largest) keeps results in [0,1].
+      float max_value = fmaxf(this->get_red(), fmaxf(this->get_green(), this->get_blue()));
       if (max_value == 0.0f) {
-        this->red_ = 1.0f;
-        this->green_ = 1.0f;
-        this->blue_ = 1.0f;
+        this->set_red(1.0f);
+        this->set_green(1.0f);
+        this->set_blue(1.0f);
       } else {
-        this->red_ /= max_value;
-        this->green_ /= max_value;
-        this->blue_ /= max_value;
+        this->set_red(this->get_red() / max_value);
+        this->set_green(this->get_green() / max_value);
+        this->set_blue(this->get_blue() / max_value);
       }
     }
   }
@@ -279,8 +276,6 @@ class LightColorValues {
   /// Set the warm white property of these light color values. In range 0.0 to 1.0.
   void set_warm_white(float warm_white) { this->warm_white_ = clamp(warm_white, 0.0f, 1.0f); }
 
-  friend class LightCall;
-
  protected:
   float state_;  ///< ON / OFF, float for transition
   float brightness_;

esphome/components/ln882x/boards.py

@@ -154,26 +154,28 @@ LN882X_BOARD_PINS = {
         "A7": 21,
     },
     "wb02a": {
-        "WIRE0_SCL_0": 1,
-        "WIRE0_SCL_1": 2,
+        "WIRE0_SCL_0": 7,
+        "WIRE0_SCL_1": 5,
         "WIRE0_SCL_2": 3,
-        "WIRE0_SCL_3": 4,
-        "WIRE0_SCL_4": 5,
-        "WIRE0_SCL_5": 7,
-        "WIRE0_SCL_6": 9,
-        "WIRE0_SCL_7": 10,
-        "WIRE0_SCL_8": 24,
-        "WIRE0_SCL_9": 25,
-        "WIRE0_SDA_0": 1,
-        "WIRE0_SDA_1": 2,
+        "WIRE0_SCL_3": 10,
+        "WIRE0_SCL_4": 2,
+        "WIRE0_SCL_5": 1,
+        "WIRE0_SCL_6": 4,
+        "WIRE0_SCL_7": 5,
+        "WIRE0_SCL_8": 9,
+        "WIRE0_SCL_9": 24,
+        "WIRE0_SCL_10": 25,
+        "WIRE0_SDA_0": 7,
+        "WIRE0_SDA_1": 5,
         "WIRE0_SDA_2": 3,
-        "WIRE0_SDA_3": 4,
-        "WIRE0_SDA_4": 5,
-        "WIRE0_SDA_5": 7,
-        "WIRE0_SDA_6": 9,
-        "WIRE0_SDA_7": 10,
-        "WIRE0_SDA_8": 24,
-        "WIRE0_SDA_9": 25,
+        "WIRE0_SDA_3": 10,
+        "WIRE0_SDA_4": 2,
+        "WIRE0_SDA_5": 1,
+        "WIRE0_SDA_6": 4,
+        "WIRE0_SDA_7": 5,
+        "WIRE0_SDA_8": 9,
+        "WIRE0_SDA_9": 24,
+        "WIRE0_SDA_10": 25,
         "SERIAL0_RX": 3,
         "SERIAL0_TX": 2,
         "SERIAL1_RX": 24,
@@ -219,32 +221,32 @@ LN882X_BOARD_PINS = {
         "A1": 4,
     },
     "wl2s": {
-        "WIRE0_SCL_0": 0,
-        "WIRE0_SCL_1": 1,
-        "WIRE0_SCL_2": 2,
-        "WIRE0_SCL_3": 3,
-        "WIRE0_SCL_4": 5,
-        "WIRE0_SCL_5": 7,
-        "WIRE0_SCL_6": 9,
-        "WIRE0_SCL_7": 10,
-        "WIRE0_SCL_8": 11,
-        "WIRE0_SCL_9": 12,
-        "WIRE0_SCL_10": 19,
-        "WIRE0_SCL_11": 24,
-        "WIRE0_SCL_12": 25,
-        "WIRE0_SDA_0": 0,
-        "WIRE0_SDA_1": 1,
-        "WIRE0_SDA_2": 2,
-        "WIRE0_SDA_3": 3,
-        "WIRE0_SDA_4": 5,
-        "WIRE0_SDA_5": 7,
-        "WIRE0_SDA_6": 9,
-        "WIRE0_SDA_7": 10,
-        "WIRE0_SDA_8": 11,
-        "WIRE0_SDA_9": 12,
-        "WIRE0_SDA_10": 19,
-        "WIRE0_SDA_11": 24,
-        "WIRE0_SDA_12": 25,
+        "WIRE0_SCL_0": 7,
+        "WIRE0_SCL_1": 12,
+        "WIRE0_SCL_2": 3,
+        "WIRE0_SCL_3": 10,
+        "WIRE0_SCL_4": 2,
+        "WIRE0_SCL_5": 0,
+        "WIRE0_SCL_6": 19,
+        "WIRE0_SCL_7": 11,
+        "WIRE0_SCL_8": 9,
+        "WIRE0_SCL_9": 24,
+        "WIRE0_SCL_10": 25,
+        "WIRE0_SCL_11": 5,
+        "WIRE0_SCL_12": 1,
+        "WIRE0_SDA_0": 7,
+        "WIRE0_SDA_1": 12,
+        "WIRE0_SDA_2": 3,
+        "WIRE0_SDA_3": 10,
+        "WIRE0_SDA_4": 2,
+        "WIRE0_SDA_5": 0,
+        "WIRE0_SDA_6": 19,
+        "WIRE0_SDA_7": 11,
+        "WIRE0_SDA_8": 9,
+        "WIRE0_SDA_9": 24,
+        "WIRE0_SDA_10": 25,
+        "WIRE0_SDA_11": 5,
+        "WIRE0_SDA_12": 1,
         "SERIAL0_RX": 3,
         "SERIAL0_TX": 2,
         "SERIAL1_RX": 24,
@@ -299,24 +301,24 @@ LN882X_BOARD_PINS = {
         "A2": 1,
     },
     "ln-02": {
-        "WIRE0_SCL_0": 0,
-        "WIRE0_SCL_1": 1,
-        "WIRE0_SCL_2": 2,
-        "WIRE0_SCL_3": 3,
-        "WIRE0_SCL_4": 9,
-        "WIRE0_SCL_5": 11,
-        "WIRE0_SCL_6": 19,
-        "WIRE0_SCL_7": 24,
-        "WIRE0_SCL_8": 25,
-        "WIRE0_SDA_0": 0,
-        "WIRE0_SDA_1": 1,
-        "WIRE0_SDA_2": 2,
-        "WIRE0_SDA_3": 3,
-        "WIRE0_SDA_4": 9,
-        "WIRE0_SDA_5": 11,
-        "WIRE0_SDA_6": 19,
-        "WIRE0_SDA_7": 24,
-        "WIRE0_SDA_8": 25,
+        "WIRE0_SCL_0": 11,
+        "WIRE0_SCL_1": 19,
+        "WIRE0_SCL_2": 3,
+        "WIRE0_SCL_3": 24,
+        "WIRE0_SCL_4": 2,
+        "WIRE0_SCL_5": 25,
+        "WIRE0_SCL_6": 1,
+        "WIRE0_SCL_7": 0,
+        "WIRE0_SCL_8": 9,
+        "WIRE0_SDA_0": 11,
+        "WIRE0_SDA_1": 19,
+        "WIRE0_SDA_2": 3,
+        "WIRE0_SDA_3": 24,
+        "WIRE0_SDA_4": 2,
+        "WIRE0_SDA_5": 25,
+        "WIRE0_SDA_6": 1,
+        "WIRE0_SDA_7": 0,
+        "WIRE0_SDA_8": 9,
         "SERIAL0_RX": 3,
         "SERIAL0_TX": 2,
         "SERIAL1_RX": 24,

esphome/components/logger/__init__.py

@@ -231,16 +231,9 @@ CONFIG_SCHEMA = cv.All(
                 bk72xx=768,
                 ln882x=768,
                 rtl87xx=768,
-                nrf52=768,
             ): cv.All(
                 cv.only_on(
-                    [
-                        PLATFORM_ESP32,
-                        PLATFORM_BK72XX,
-                        PLATFORM_LN882X,
-                        PLATFORM_RTL87XX,
-                        PLATFORM_NRF52,
-                    ]
+                    [PLATFORM_ESP32, PLATFORM_BK72XX, PLATFORM_LN882X, PLATFORM_RTL87XX]
                 ),
                 cv.validate_bytes,
                 cv.Any(
@@ -320,13 +313,11 @@ async def to_code(config):
     )
     if CORE.is_esp32:
         cg.add(log.create_pthread_key())
-    if CORE.is_esp32 or CORE.is_libretiny or CORE.is_nrf52:
+    if CORE.is_esp32 or CORE.is_libretiny:
         task_log_buffer_size = config[CONF_TASK_LOG_BUFFER_SIZE]
         if task_log_buffer_size > 0:
             cg.add_define("USE_ESPHOME_TASK_LOG_BUFFER")
             cg.add(log.init_log_buffer(task_log_buffer_size))
-            if CORE.using_zephyr:
-                zephyr_add_prj_conf("MPSC_PBUF", True)
     elif CORE.is_host:
         cg.add(log.create_pthread_key())
         cg.add_define("USE_ESPHOME_TASK_LOG_BUFFER")
@@ -426,7 +417,6 @@ async def to_code(config):
         pass
 
     if CORE.is_nrf52:
-        zephyr_add_prj_conf("THREAD_LOCAL_STORAGE", True)
         if config[CONF_HARDWARE_UART] == UART0:
             zephyr_add_overlay("""&uart0 { status = "okay";};""")
         if config[CONF_HARDWARE_UART] == UART1:

esphome/components/logger/log_buffer.h

@@ -1,190 +0,0 @@
-#pragma once
-
-#include "esphome/core/helpers.h"
-#include "esphome/core/log.h"
-
-namespace esphome::logger {
-
-// Maximum header size: 35 bytes fixed + 32 bytes tag + 16 bytes thread name = 83 bytes (45 byte safety margin)
-static constexpr uint16_t MAX_HEADER_SIZE = 128;
-
-// ANSI color code last digit (30-38 range, store only last digit to save RAM)
-static constexpr char LOG_LEVEL_COLOR_DIGIT[] = {
-    '\0',  // NONE
-    '1',   // ERROR (31 = red)
-    '3',   // WARNING (33 = yellow)
-    '2',   // INFO (32 = green)
-    '5',   // CONFIG (35 = magenta)
-    '6',   // DEBUG (36 = cyan)
-    '7',   // VERBOSE (37 = gray)
-    '8',   // VERY_VERBOSE (38 = white)
-};
-
-static constexpr char LOG_LEVEL_LETTER_CHARS[] = {
-    '\0',  // NONE
-    'E',   // ERROR
-    'W',   // WARNING
-    'I',   // INFO
-    'C',   // CONFIG
-    'D',   // DEBUG
-    'V',   // VERBOSE (VERY_VERBOSE uses two 'V's)
-};
-
-// Buffer wrapper for log formatting functions
-struct LogBuffer {
-  char *data;
-  uint16_t size;
-  uint16_t pos{0};
-  // Replaces the null terminator with a newline for console output.
-  // Must be called after notify_listeners_() since listeners need null-terminated strings.
-  // Console output uses length-based writes (buf.pos), so null terminator is not needed.
-  void terminate_with_newline() {
-    if (this->pos < this->size) {
-      this->data[this->pos++] = '\n';
-    } else if (this->size > 0) {
-      // Buffer was full - replace last char with newline to ensure it's visible
-      this->data[this->size - 1] = '\n';
-      this->pos = this->size;
-    }
-  }
-  void HOT write_header(uint8_t level, const char *tag, int line, const char *thread_name) {
-    // Early return if insufficient space - intentionally don't update pos to prevent partial writes
-    if (this->pos + MAX_HEADER_SIZE > this->size)
-      return;
-
-    char *p = this->current_();
-
-    // Write ANSI color
-    this->write_ansi_color_(p, level);
-
-    // Construct: [LEVEL][tag:line]
-    *p++ = '[';
-    if (level != 0) {
-      if (level >= 7) {
-        *p++ = 'V';  // VERY_VERBOSE = "VV"
-        *p++ = 'V';
-      } else {
-        *p++ = LOG_LEVEL_LETTER_CHARS[level];
-      }
-    }
-    *p++ = ']';
-    *p++ = '[';
-
-    // Copy tag
-    this->copy_string_(p, tag);
-
-    *p++ = ':';
-
-    // Format line number without modulo operations
-    if (line > 999) [[unlikely]] {
-      int thousands = line / 1000;
-      *p++ = '0' + thousands;
-      line -= thousands * 1000;
-    }
-    int hundreds = line / 100;
-    int remainder = line - hundreds * 100;
-    int tens = remainder / 10;
-    *p++ = '0' + hundreds;
-    *p++ = '0' + tens;
-    *p++ = '0' + (remainder - tens * 10);
-    *p++ = ']';
-
-#if defined(USE_ESP32) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR) || defined(USE_HOST)
-    // Write thread name with bold red color
-    if (thread_name != nullptr) {
-      this->write_ansi_color_(p, 1);  // Bold red for thread name
-      *p++ = '[';
-      this->copy_string_(p, thread_name);
-      *p++ = ']';
-      this->write_ansi_color_(p, level);  // Restore original color
-    }
-#endif
-
-    *p++ = ':';
-    *p++ = ' ';
-
-    this->pos = p - this->data;
-  }
-  void HOT format_body(const char *format, va_list args) {
-    this->format_vsnprintf_(format, args);
-    this->finalize_();
-  }
-#ifdef USE_STORE_LOG_STR_IN_FLASH
-  void HOT format_body_P(PGM_P format, va_list args) {
-    this->format_vsnprintf_P_(format, args);
-    this->finalize_();
-  }
-#endif
-  void write_body(const char *text, uint16_t text_length) {
-    this->write_(text, text_length);
-    this->finalize_();
-  }
-
- private:
-  bool full_() const { return this->pos >= this->size; }
-  uint16_t remaining_() const { return this->size - this->pos; }
-  char *current_() { return this->data + this->pos; }
-  void write_(const char *value, uint16_t length) {
-    const uint16_t available = this->remaining_();
-    const uint16_t copy_len = (length < available) ? length : available;
-    if (copy_len > 0) {
-      memcpy(this->current_(), value, copy_len);
-      this->pos += copy_len;
-    }
-  }
-  void finalize_() {
-    // Write color reset sequence
-    static constexpr uint16_t RESET_COLOR_LEN = sizeof(ESPHOME_LOG_RESET_COLOR) - 1;
-    this->write_(ESPHOME_LOG_RESET_COLOR, RESET_COLOR_LEN);
-    // Null terminate
-    this->data[this->full_() ? this->size - 1 : this->pos] = '\0';
-  }
-  void strip_trailing_newlines_() {
-    while (this->pos > 0 && this->data[this->pos - 1] == '\n')
-      this->pos--;
-  }
-  void process_vsnprintf_result_(int ret) {
-    if (ret < 0)
-      return;
-    const uint16_t rem = this->remaining_();
-    this->pos += (ret >= rem) ? (rem - 1) : static_cast<uint16_t>(ret);
-    this->strip_trailing_newlines_();
-  }
-  void format_vsnprintf_(const char *format, va_list args) {
-    if (this->full_())
-      return;
-    this->process_vsnprintf_result_(vsnprintf(this->current_(), this->remaining_(), format, args));
-  }
-#ifdef USE_STORE_LOG_STR_IN_FLASH
-  void format_vsnprintf_P_(PGM_P format, va_list args) {
-    if (this->full_())
-      return;
-    this->process_vsnprintf_result_(vsnprintf_P(this->current_(), this->remaining_(), format, args));
-  }
-#endif
-  // Write ANSI color escape sequence to buffer, updates pointer in place
-  // Caller is responsible for ensuring buffer has sufficient space
-  void write_ansi_color_(char *&p, uint8_t level) {
-    if (level == 0)
-      return;
-    // Direct buffer fill: "\033[{bold};3{color}m" (7 bytes)
-    *p++ = '\033';
-    *p++ = '[';
-    *p++ = (level == 1) ? '1' : '0';  // Only ERROR is bold
-    *p++ = ';';
-    *p++ = '3';
-    *p++ = LOG_LEVEL_COLOR_DIGIT[level];
-    *p++ = 'm';
-  }
-  // Copy string without null terminator, updates pointer in place
-  // Caller is responsible for ensuring buffer has sufficient space
-  void copy_string_(char *&p, const char *str) {
-    const size_t len = strlen(str);
-    // NOLINTNEXTLINE(bugprone-not-null-terminated-result) - intentionally no null terminator, building string piece by
-    // piece
-    memcpy(p, str, len);
-    p += len;
-  }
-};
-
-}  // namespace esphome::logger

esphome/components/logger/logger.cpp

@@ -10,9 +10,9 @@ namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
-#if defined(USE_ESP32) || defined(USE_HOST) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
-// Implementation for multi-threaded platforms (ESP32 with FreeRTOS, Host with pthreads, LibreTiny with FreeRTOS,
-// Zephyr) Main thread/task always uses direct buffer access for console output and callbacks
+#if defined(USE_ESP32) || defined(USE_HOST) || defined(USE_LIBRETINY)
+// Implementation for multi-threaded platforms (ESP32 with FreeRTOS, Host with pthreads, LibreTiny with FreeRTOS)
+// Main thread/task always uses direct buffer access for console output and callbacks
 //
 // For non-main threads/tasks:
 //  - WITH task log buffer: Prefer sending to ring buffer for async processing
@@ -31,17 +31,13 @@ void HOT Logger::log_vprintf_(uint8_t level, const char *tag, int line, const ch
   // Get task handle once - used for both main task check and passing to non-main thread handler
   TaskHandle_t current_task = xTaskGetCurrentTaskHandle();
   const bool is_main_task = (current_task == this->main_task_);
-#elif (USE_ZEPHYR)
-  k_tid_t current_task = k_current_get();
-  const bool is_main_task = (current_task == this->main_task_);
 #else  // USE_HOST
   const bool is_main_task = pthread_equal(pthread_self(), this->main_thread_);
 #endif
 
   // Fast path: main thread, no recursion (99.9% of all logs)
-  // Pass nullptr for thread_name since we already know this is the main task
   if (is_main_task && !this->main_task_recursion_guard_) [[likely]] {
-    this->log_message_to_buffer_and_send_(this->main_task_recursion_guard_, level, tag, line, format, args, nullptr);
+    this->log_message_to_buffer_and_send_(this->main_task_recursion_guard_, level, tag, line, format, args);
     return;
   }
 
@@ -51,26 +47,21 @@ void HOT Logger::log_vprintf_(uint8_t level, const char *tag, int line, const ch
   }
 
   // Non-main thread handling (~0.1% of logs)
-  // Resolve thread name once and pass it through the logging chain.
-  // ESP32/LibreTiny: use TaskHandle_t overload to avoid redundant xTaskGetCurrentTaskHandle()
-  // (we already have the handle from the main task check above).
-  // Host: pass a stack buffer for pthread_getname_np to write into.
 #if defined(USE_ESP32) || defined(USE_LIBRETINY)
-  const char *thread_name = get_thread_name_(current_task);
-#elif defined(USE_ZEPHYR)
-  char thread_name_buf[MAX_POINTER_REPRESENTATION];
-  const char *thread_name = get_thread_name_(thread_name_buf, current_task);
+  this->log_vprintf_non_main_thread_(level, tag, line, format, args, current_task);
 #else  // USE_HOST
-  char thread_name_buf[THREAD_NAME_BUF_SIZE];
-  const char *thread_name = this->get_thread_name_(thread_name_buf);
+  this->log_vprintf_non_main_thread_(level, tag, line, format, args);
 #endif
-  this->log_vprintf_non_main_thread_(level, tag, line, format, args, thread_name);
 }
 
 // Handles non-main thread logging only
 // Kept separate from hot path to improve instruction cache performance
+#if defined(USE_ESP32) || defined(USE_LIBRETINY)
 void Logger::log_vprintf_non_main_thread_(uint8_t level, const char *tag, int line, const char *format, va_list args,
-                                          const char *thread_name) {
+                                          TaskHandle_t current_task) {
+#else  // USE_HOST
+void Logger::log_vprintf_non_main_thread_(uint8_t level, const char *tag, int line, const char *format, va_list args) {
+#endif
   // Check if already in recursion for this non-main thread/task
   if (this->is_non_main_task_recursive_()) {
     return;
@@ -82,50 +73,49 @@ void Logger::log_vprintf_non_main_thread_(uint8_t level, const char *tag, int li
   bool message_sent = false;
 #ifdef USE_ESPHOME_TASK_LOG_BUFFER
   // For non-main threads/tasks, queue the message for callbacks
+#if defined(USE_ESP32) || defined(USE_LIBRETINY)
   message_sent =
-      this->log_buffer_->send_message_thread_safe(level, tag, static_cast<uint16_t>(line), thread_name, format, args);
+      this->log_buffer_->send_message_thread_safe(level, tag, static_cast<uint16_t>(line), current_task, format, args);
+#else  // USE_HOST
+  message_sent = this->log_buffer_->send_message_thread_safe(level, tag, static_cast<uint16_t>(line), format, args);
+#endif
   if (message_sent) {
     // Enable logger loop to process the buffered message
     // This is safe to call from any context including ISRs
     this->enable_loop_soon_any_context();
   }
-#endif
+#endif  // USE_ESPHOME_TASK_LOG_BUFFER
+
   // Emergency console logging for non-main threads when ring buffer is full or disabled
   // This is a fallback mechanism to ensure critical log messages are visible
   // Note: This may cause interleaved/corrupted console output if multiple threads
   // log simultaneously, but it's better than losing important messages entirely
 #ifdef USE_HOST
-  if (!message_sent)
-#else
-  if (!message_sent && this->baud_rate_ > 0)  // If logging is enabled, write to console
-#endif
-  {
-#ifdef USE_HOST
+  if (!message_sent) {
     // Host always has console output - no baud_rate check needed
     static const size_t MAX_CONSOLE_LOG_MSG_SIZE = 512;
 #else
+  if (!message_sent && this->baud_rate_ > 0) {  // If logging is enabled, write to console
     // Maximum size for console log messages (includes null terminator)
     static const size_t MAX_CONSOLE_LOG_MSG_SIZE = 144;
 #endif
     char console_buffer[MAX_CONSOLE_LOG_MSG_SIZE];  // MUST be stack allocated for thread safety
     LogBuffer buf{console_buffer, MAX_CONSOLE_LOG_MSG_SIZE};
-    this->format_log_to_buffer_with_terminator_(level, tag, line, format, args, buf, thread_name);
+    this->format_log_to_buffer_with_terminator_(level, tag, line, format, args, buf);
     this->write_to_console_(buf);
   }
 
   // RAII guard automatically resets on return
 }
 #else
-// Implementation for single-task platforms (ESP8266, RP2040)
-// Logging calls are NOT thread-safe: global_recursion_guard_ is a plain bool and tx_buffer_ has no locking.
-// Not a problem in practice yet since Zephyr has no API support (logs are console-only).
+// Implementation for all other platforms (single-task, no threading)
 void HOT Logger::log_vprintf_(uint8_t level, const char *tag, int line, const char *format, va_list args) {  // NOLINT
   if (level > this->level_for(tag) || global_recursion_guard_)
     return;
-  // Other single-task platforms don't have thread names, so pass nullptr
-  this->log_message_to_buffer_and_send_(global_recursion_guard_, level, tag, line, format, args, nullptr);
+
+  this->log_message_to_buffer_and_send_(global_recursion_guard_, level, tag, line, format, args);
 }
-#endif  // USE_ESP32 || USE_HOST || USE_LIBRETINY || USE_ZEPHYR
+#endif  // USE_ESP32 / USE_HOST / USE_LIBRETINY
 
 #ifdef USE_STORE_LOG_STR_IN_FLASH
 // Implementation for ESP8266 with flash string support.
@@ -139,7 +129,7 @@ void Logger::log_vprintf_(uint8_t level, const char *tag, int line, const __Flas
   if (level > this->level_for(tag) || global_recursion_guard_)
     return;
 
-  this->log_message_to_buffer_and_send_(global_recursion_guard_, level, tag, line, format, args, nullptr);
+  this->log_message_to_buffer_and_send_(global_recursion_guard_, level, tag, line, format, args);
 }
 #endif  // USE_STORE_LOG_STR_IN_FLASH
 
@@ -166,12 +156,19 @@ Logger::Logger(uint32_t baud_rate, size_t tx_buffer_size) : baud_rate_(baud_rate
 }
 #ifdef USE_ESPHOME_TASK_LOG_BUFFER
 void Logger::init_log_buffer(size_t total_buffer_size) {
+#ifdef USE_HOST
   // Host uses slot count instead of byte size
+  // NOLINTNEXTLINE(cppcoreguidelines-owning-memory) - allocated once, never freed
+  this->log_buffer_ = new logger::TaskLogBufferHost(total_buffer_size);
+#elif defined(USE_ESP32)
   // NOLINTNEXTLINE(cppcoreguidelines-owning-memory) - allocated once, never freed
   this->log_buffer_ = new logger::TaskLogBuffer(total_buffer_size);
+#elif defined(USE_LIBRETINY)
+  // NOLINTNEXTLINE(cppcoreguidelines-owning-memory) - allocated once, never freed
+  this->log_buffer_ = new logger::TaskLogBufferLibreTiny(total_buffer_size);
+#endif
 
-// Zephyr needs loop working to check when CDC port is open
-#if !(defined(USE_ZEPHYR) || defined(USE_LOGGER_USB_CDC))
+#if defined(USE_ESP32) || defined(USE_LIBRETINY)
   // Start with loop disabled when using task buffer (unless using USB CDC on ESP32)
   // The loop will be enabled automatically when messages arrive
   this->disable_loop_when_buffer_empty_();
@@ -179,33 +176,52 @@ void Logger::init_log_buffer(size_t total_buffer_size) {
 }
 #endif
 
-#if defined(USE_ESPHOME_TASK_LOG_BUFFER) || (defined(USE_ZEPHYR) && defined(USE_LOGGER_USB_CDC))
-void Logger::loop() {
-  this->process_messages_();
-#if defined(USE_ZEPHYR) && defined(USE_LOGGER_USB_CDC)
-  this->cdc_loop_();
-#endif
-}
+#ifdef USE_ESPHOME_TASK_LOG_BUFFER
+void Logger::loop() { this->process_messages_(); }
 #endif
 
 void Logger::process_messages_() {
 #ifdef USE_ESPHOME_TASK_LOG_BUFFER
   // Process any buffered messages when available
   if (this->log_buffer_->has_messages()) {
-    logger::TaskLogBuffer::LogMessage *message;
-    uint16_t text_length;
-    while (this->log_buffer_->borrow_message_main_loop(message, text_length)) {
+#ifdef USE_HOST
+    logger::TaskLogBufferHost::LogMessage *message;
+    while (this->log_buffer_->get_message_main_loop(&message)) {
       const char *thread_name = message->thread_name[0] != '\0' ? message->thread_name : nullptr;
       LogBuffer buf{this->tx_buffer_, this->tx_buffer_size_};
-      this->format_buffered_message_and_notify_(message->level, message->tag, message->line, thread_name,
-                                                message->text_data(), text_length, buf);
+      this->format_buffered_message_and_notify_(message->level, message->tag, message->line, thread_name, message->text,
+                                                message->text_length, buf);
+      this->log_buffer_->release_message_main_loop();
+      this->write_log_buffer_to_console_(buf);
+    }
+#elif defined(USE_ESP32)
+    logger::TaskLogBuffer::LogMessage *message;
+    const char *text;
+    void *received_token;
+    while (this->log_buffer_->borrow_message_main_loop(&message, &text, &received_token)) {
+      const char *thread_name = message->thread_name[0] != '\0' ? message->thread_name : nullptr;
+      LogBuffer buf{this->tx_buffer_, this->tx_buffer_size_};
+      this->format_buffered_message_and_notify_(message->level, message->tag, message->line, thread_name, text,
+                                                message->text_length, buf);
+      // Release the message to allow other tasks to use it as soon as possible
+      this->log_buffer_->release_message_main_loop(received_token);
+      this->write_log_buffer_to_console_(buf);
+    }
+#elif defined(USE_LIBRETINY)
+    logger::TaskLogBufferLibreTiny::LogMessage *message;
+    const char *text;
+    while (this->log_buffer_->borrow_message_main_loop(&message, &text)) {
+      const char *thread_name = message->thread_name[0] != '\0' ? message->thread_name : nullptr;
+      LogBuffer buf{this->tx_buffer_, this->tx_buffer_size_};
+      this->format_buffered_message_and_notify_(message->level, message->tag, message->line, thread_name, text,
+                                                message->text_length, buf);
       // Release the message to allow other tasks to use it as soon as possible
       this->log_buffer_->release_message_main_loop();
       this->write_log_buffer_to_console_(buf);
     }
+#endif
   }
-// Zephyr needs loop working to check when CDC port is open
-#if !(defined(USE_ZEPHYR) || defined(USE_LOGGER_USB_CDC))
+#if defined(USE_ESP32) || defined(USE_LIBRETINY)
   else {
     // No messages to process, disable loop if appropriate
     // This reduces overhead when there's no async logging activity

esphome/components/logger/logger.h

@@ -2,7 +2,6 @@
 
 #include <cstdarg>
 #include <map>
-#include <span>
 #include <type_traits>
 #if defined(USE_ESP32) || defined(USE_HOST)
 #include <pthread.h>
@@ -13,11 +12,15 @@
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 
-#include "log_buffer.h"
+#ifdef USE_ESPHOME_TASK_LOG_BUFFER
+#ifdef USE_HOST
 #include "task_log_buffer_host.h"
+#elif defined(USE_ESP32)
 #include "task_log_buffer_esp32.h"
+#elif defined(USE_LIBRETINY)
 #include "task_log_buffer_libretiny.h"
-#include "task_log_buffer_zephyr.h"
+#endif
+#endif
 
 #ifdef USE_ARDUINO
 #if defined(USE_ESP8266)
@@ -93,9 +96,190 @@ struct CStrCompare {
 };
 #endif
 
-// Stack buffer size for retrieving thread/task names from the OS
-// macOS allows up to 64 bytes, Linux up to 16
-static constexpr size_t THREAD_NAME_BUF_SIZE = 64;
+// ANSI color code last digit (30-38 range, store only last digit to save RAM)
+static constexpr char LOG_LEVEL_COLOR_DIGIT[] = {
+    '\0',  // NONE
+    '1',   // ERROR (31 = red)
+    '3',   // WARNING (33 = yellow)
+    '2',   // INFO (32 = green)
+    '5',   // CONFIG (35 = magenta)
+    '6',   // DEBUG (36 = cyan)
+    '7',   // VERBOSE (37 = gray)
+    '8',   // VERY_VERBOSE (38 = white)
+};
+
+static constexpr char LOG_LEVEL_LETTER_CHARS[] = {
+    '\0',  // NONE
+    'E',   // ERROR
+    'W',   // WARNING
+    'I',   // INFO
+    'C',   // CONFIG
+    'D',   // DEBUG
+    'V',   // VERBOSE (VERY_VERBOSE uses two 'V's)
+};
+
+// Maximum header size: 35 bytes fixed + 32 bytes tag + 16 bytes thread name = 83 bytes (45 byte safety margin)
+static constexpr uint16_t MAX_HEADER_SIZE = 128;
+
+// "0x" + 2 hex digits per byte + '\0'
+static constexpr size_t MAX_POINTER_REPRESENTATION = 2 + sizeof(void *) * 2 + 1;
+
+// Buffer wrapper for log formatting functions
+struct LogBuffer {
+  char *data;
+  uint16_t size;
+  uint16_t pos{0};
+  // Replaces the null terminator with a newline for console output.
+  // Must be called after notify_listeners_() since listeners need null-terminated strings.
+  // Console output uses length-based writes (buf.pos), so null terminator is not needed.
+  void terminate_with_newline() {
+    if (this->pos < this->size) {
+      this->data[this->pos++] = '\n';
+    } else if (this->size > 0) {
+      // Buffer was full - replace last char with newline to ensure it's visible
+      this->data[this->size - 1] = '\n';
+      this->pos = this->size;
+    }
+  }
+  void HOT write_header(uint8_t level, const char *tag, int line, const char *thread_name) {
+    // Early return if insufficient space - intentionally don't update pos to prevent partial writes
+    if (this->pos + MAX_HEADER_SIZE > this->size)
+      return;
+
+    char *p = this->current_();
+
+    // Write ANSI color
+    this->write_ansi_color_(p, level);
+
+    // Construct: [LEVEL][tag:line]
+    *p++ = '[';
+    if (level != 0) {
+      if (level >= 7) {
+        *p++ = 'V';  // VERY_VERBOSE = "VV"
+        *p++ = 'V';
+      } else {
+        *p++ = LOG_LEVEL_LETTER_CHARS[level];
+      }
+    }
+    *p++ = ']';
+    *p++ = '[';
+
+    // Copy tag
+    this->copy_string_(p, tag);
+
+    *p++ = ':';
+
+    // Format line number without modulo operations
+    if (line > 999) [[unlikely]] {
+      int thousands = line / 1000;
+      *p++ = '0' + thousands;
+      line -= thousands * 1000;
+    }
+    int hundreds = line / 100;
+    int remainder = line - hundreds * 100;
+    int tens = remainder / 10;
+    *p++ = '0' + hundreds;
+    *p++ = '0' + tens;
+    *p++ = '0' + (remainder - tens * 10);
+    *p++ = ']';
+
+#if defined(USE_ESP32) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR) || defined(USE_HOST)
+    // Write thread name with bold red color
+    if (thread_name != nullptr) {
+      this->write_ansi_color_(p, 1);  // Bold red for thread name
+      *p++ = '[';
+      this->copy_string_(p, thread_name);
+      *p++ = ']';
+      this->write_ansi_color_(p, level);  // Restore original color
+    }
+#endif
+
+    *p++ = ':';
+    *p++ = ' ';
+
+    this->pos = p - this->data;
+  }
+  void HOT format_body(const char *format, va_list args) {
+    this->format_vsnprintf_(format, args);
+    this->finalize_();
+  }
+#ifdef USE_STORE_LOG_STR_IN_FLASH
+  void HOT format_body_P(PGM_P format, va_list args) {
+    this->format_vsnprintf_P_(format, args);
+    this->finalize_();
+  }
+#endif
+  void write_body(const char *text, uint16_t text_length) {
+    this->write_(text, text_length);
+    this->finalize_();
+  }
+
+ private:
+  bool full_() const { return this->pos >= this->size; }
+  uint16_t remaining_() const { return this->size - this->pos; }
+  char *current_() { return this->data + this->pos; }
+  void write_(const char *value, uint16_t length) {
+    const uint16_t available = this->remaining_();
+    const uint16_t copy_len = (length < available) ? length : available;
+    if (copy_len > 0) {
+      memcpy(this->current_(), value, copy_len);
+      this->pos += copy_len;
+    }
+  }
+  void finalize_() {
+    // Write color reset sequence
+    static constexpr uint16_t RESET_COLOR_LEN = sizeof(ESPHOME_LOG_RESET_COLOR) - 1;
+    this->write_(ESPHOME_LOG_RESET_COLOR, RESET_COLOR_LEN);
+    // Null terminate
+    this->data[this->full_() ? this->size - 1 : this->pos] = '\0';
+  }
+  void strip_trailing_newlines_() {
+    while (this->pos > 0 && this->data[this->pos - 1] == '\n')
+      this->pos--;
+  }
+  void process_vsnprintf_result_(int ret) {
+    if (ret < 0)
+      return;
+    const uint16_t rem = this->remaining_();
+    this->pos += (ret >= rem) ? (rem - 1) : static_cast<uint16_t>(ret);
+    this->strip_trailing_newlines_();
+  }
+  void format_vsnprintf_(const char *format, va_list args) {
+    if (this->full_())
+      return;
+    this->process_vsnprintf_result_(vsnprintf(this->current_(), this->remaining_(), format, args));
+  }
+#ifdef USE_STORE_LOG_STR_IN_FLASH
+  void format_vsnprintf_P_(PGM_P format, va_list args) {
+    if (this->full_())
+      return;
+    this->process_vsnprintf_result_(vsnprintf_P(this->current_(), this->remaining_(), format, args));
+  }
+#endif
+  // Write ANSI color escape sequence to buffer, updates pointer in place
+  // Caller is responsible for ensuring buffer has sufficient space
+  void write_ansi_color_(char *&p, uint8_t level) {
+    if (level == 0)
+      return;
+    // Direct buffer fill: "\033[{bold};3{color}m" (7 bytes)
+    *p++ = '\033';
+    *p++ = '[';
+    *p++ = (level == 1) ? '1' : '0';  // Only ERROR is bold
+    *p++ = ';';
+    *p++ = '3';
+    *p++ = LOG_LEVEL_COLOR_DIGIT[level];
+    *p++ = 'm';
+  }
+  // Copy string without null terminator, updates pointer in place
+  // Caller is responsible for ensuring buffer has sufficient space
+  void copy_string_(char *&p, const char *str) {
+    const size_t len = strlen(str);
+    // NOLINTNEXTLINE(bugprone-not-null-terminated-result) - intentionally no null terminator, building string piece by
+    // piece
+    memcpy(p, str, len);
+    p += len;
+  }
+};
 
 #if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
 /** Enum for logging UART selection
@@ -222,29 +406,36 @@ class Logger : public Component {
     bool &flag_;
   };
 
-#if defined(USE_ESP32) || defined(USE_HOST) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
+#if defined(USE_ESP32) || defined(USE_HOST) || defined(USE_LIBRETINY)
   // Handles non-main thread logging only (~0.1% of calls)
-  // thread_name is resolved by the caller from the task handle, avoiding redundant lookups
+#if defined(USE_ESP32) || defined(USE_LIBRETINY)
+  // ESP32/LibreTiny: Pass task handle to avoid calling xTaskGetCurrentTaskHandle() twice
   void log_vprintf_non_main_thread_(uint8_t level, const char *tag, int line, const char *format, va_list args,
-                                    const char *thread_name);
+                                    TaskHandle_t current_task);
+#else  // USE_HOST
+  // Host: No task handle parameter needed (not used in send_message_thread_safe)
+  void log_vprintf_non_main_thread_(uint8_t level, const char *tag, int line, const char *format, va_list args);
 #endif
-#if defined(USE_ZEPHYR) && defined(USE_LOGGER_USB_CDC)
-  void cdc_loop_();
 #endif
   void process_messages_();
   void write_msg_(const char *msg, uint16_t len);
 
   // Format a log message with printf-style arguments and write it to a buffer with header, footer, and null terminator
-  // thread_name: name of the calling thread/task, or nullptr for main task (callers already know which task they're on)
   inline void HOT format_log_to_buffer_with_terminator_(uint8_t level, const char *tag, int line, const char *format,
-                                                        va_list args, LogBuffer &buf, const char *thread_name) {
-    buf.write_header(level, tag, line, thread_name);
+                                                        va_list args, LogBuffer &buf) {
+#if defined(USE_ESP32) || defined(USE_LIBRETINY) || defined(USE_HOST)
+    buf.write_header(level, tag, line, this->get_thread_name_());
+#elif defined(USE_ZEPHYR)
+    char tmp[MAX_POINTER_REPRESENTATION];
+    buf.write_header(level, tag, line, this->get_thread_name_(tmp));
+#else
+    buf.write_header(level, tag, line, nullptr);
+#endif
     buf.format_body(format, args);
   }
 
 #ifdef USE_STORE_LOG_STR_IN_FLASH
   // Format a log message with flash string format and write it to a buffer with header, footer, and null terminator
-  // ESP8266-only (single-task), thread_name is always nullptr
   inline void HOT format_log_to_buffer_with_terminator_P_(uint8_t level, const char *tag, int line,
                                                           const __FlashStringHelper *format, va_list args,
                                                           LogBuffer &buf) {
@@ -275,10 +466,9 @@ class Logger : public Component {
 
   // Helper to format and send a log message to both console and listeners
   // Template handles both const char* (RAM) and __FlashStringHelper* (flash) format strings
-  // thread_name: name of the calling thread/task, or nullptr for main task
   template<typename FormatType>
   inline void HOT log_message_to_buffer_and_send_(bool &recursion_guard, uint8_t level, const char *tag, int line,
-                                                  FormatType format, va_list args, const char *thread_name) {
+                                                  FormatType format, va_list args) {
     RecursionGuard guard(recursion_guard);
     LogBuffer buf{this->tx_buffer_, this->tx_buffer_size_};
 #ifdef USE_STORE_LOG_STR_IN_FLASH
@@ -287,7 +477,7 @@ class Logger : public Component {
     } else
 #endif
     {
-      this->format_log_to_buffer_with_terminator_(level, tag, line, format, args, buf, thread_name);
+      this->format_log_to_buffer_with_terminator_(level, tag, line, format, args, buf);
     }
     this->notify_listeners_(level, tag, buf);
     this->write_log_buffer_to_console_(buf);
@@ -348,7 +538,13 @@ class Logger : public Component {
   std::vector<LoggerLevelListener *> level_listeners_;  // Log level change listeners
 #endif
 #ifdef USE_ESPHOME_TASK_LOG_BUFFER
+#ifdef USE_HOST
+  logger::TaskLogBufferHost *log_buffer_{nullptr};  // Allocated once, never freed
+#elif defined(USE_ESP32)
   logger::TaskLogBuffer *log_buffer_{nullptr};  // Allocated once, never freed
+#elif defined(USE_LIBRETINY)
+  logger::TaskLogBufferLibreTiny *log_buffer_{nullptr};  // Allocated once, never freed
+#endif
 #endif
 
   // Group smaller types together at the end
@@ -360,7 +556,7 @@ class Logger : public Component {
 #ifdef USE_LIBRETINY
   UARTSelection uart_{UART_SELECTION_DEFAULT};
 #endif
-#if defined(USE_ESP32) || defined(USE_HOST) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
+#if defined(USE_ESP32) || defined(USE_HOST) || defined(USE_LIBRETINY)
   bool main_task_recursion_guard_{false};
 #ifdef USE_LIBRETINY
   bool non_main_task_recursion_guard_{false};  // Shared guard for all non-main tasks on LibreTiny
@@ -369,59 +565,37 @@ class Logger : public Component {
   bool global_recursion_guard_{false};  // Simple global recursion guard for single-task platforms
 #endif
 
-  // --- get_thread_name_ overloads (per-platform) ---
-
-#if defined(USE_ESP32) || defined(USE_LIBRETINY)
-  // Primary overload - takes a task handle directly to avoid redundant xTaskGetCurrentTaskHandle() calls
-  // when the caller already has the handle (e.g. from the main task check in log_vprintf_)
-  const char *get_thread_name_(TaskHandle_t task) {
-    if (task == this->main_task_) {
-      return nullptr;  // Main task
-    }
-#if defined(USE_ESP32)
-    return pcTaskGetName(task);
-#elif defined(USE_LIBRETINY)
-    return pcTaskGetTaskName(task);
+#if defined(USE_ESP32) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
+  const char *HOT get_thread_name_(
+#ifdef USE_ZEPHYR
+      char *buff
+#endif
+  ) {
+#ifdef USE_ZEPHYR
+    k_tid_t current_task = k_current_get();
+#else
+    TaskHandle_t current_task = xTaskGetCurrentTaskHandle();
 #endif
-  }
-
-  // Convenience overload - gets the current task handle and delegates
-  const char *HOT get_thread_name_() { return this->get_thread_name_(xTaskGetCurrentTaskHandle()); }
-
-#elif defined(USE_HOST)
-  // Takes a caller-provided buffer for the thread name (stack-allocated for thread safety)
-  const char *HOT get_thread_name_(std::span<char> buff) {
-    pthread_t current_thread = pthread_self();
-    if (pthread_equal(current_thread, main_thread_)) {
-      return nullptr;  // Main thread
-    }
-    // For non-main threads, get the thread name into the caller-provided buffer
-    if (pthread_getname_np(current_thread, buff.data(), buff.size()) == 0) {
-      return buff.data();
-    }
-    return nullptr;
-  }
-
-#elif defined(USE_ZEPHYR)
-  const char *HOT get_thread_name_(std::span<char> buff, k_tid_t current_task = nullptr) {
-    if (current_task == nullptr) {
-      current_task = k_current_get();
-    }
     if (current_task == main_task_) {
       return nullptr;  // Main task
+    } else {
+#if defined(USE_ESP32)
+      return pcTaskGetName(current_task);
+#elif defined(USE_LIBRETINY)
+      return pcTaskGetTaskName(current_task);
+#elif defined(USE_ZEPHYR)
+      const char *name = k_thread_name_get(current_task);
+      if (name) {
+        // zephyr print task names only if debug component is present
+        return name;
+      }
+      std::snprintf(buff, MAX_POINTER_REPRESENTATION, "%p", current_task);
+      return buff;
+#endif
     }
-    const char *name = k_thread_name_get(current_task);
-    if (name) {
-      // zephyr print task names only if debug component is present
-      return name;
-    }
-    std::snprintf(buff.data(), buff.size(), "%p", current_task);
-    return buff.data();
   }
 #endif
 
-  // --- Non-main task recursion guards (per-platform) ---
-
 #if defined(USE_ESP32) || defined(USE_HOST)
   // RAII guard for non-main task recursion using pthread TLS
   class NonMainTaskRecursionGuard {
@@ -445,7 +619,7 @@ class Logger : public Component {
   // Create RAII guard for non-main task recursion
   inline NonMainTaskRecursionGuard make_non_main_task_guard_() { return NonMainTaskRecursionGuard(log_recursion_key_); }
 
-#elif defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
+#elif defined(USE_LIBRETINY)
   // LibreTiny doesn't have FreeRTOS TLS, so use a simple approach:
   // - Main task uses dedicated boolean (same as ESP32)
   // - Non-main tasks share a single recursion guard
@@ -453,8 +627,6 @@ class Logger : public Component {
   // - Recursion from logging within logging is the main concern
   // - Cross-task "recursion" is prevented by the buffer mutex anyway
   // - Missing a recursive call from another task is acceptable (falls back to direct output)
-  //
-  // Zephyr use __thread as TLS
 
   // Check if non-main task is already in recursion
   inline bool HOT is_non_main_task_recursive_() const { return non_main_task_recursion_guard_; }
@@ -463,8 +635,23 @@ class Logger : public Component {
   inline RecursionGuard make_non_main_task_guard_() { return RecursionGuard(non_main_task_recursion_guard_); }
 #endif
 
-// Zephyr needs loop working to check when CDC port is open
-#if defined(USE_ESPHOME_TASK_LOG_BUFFER) && !(defined(USE_ZEPHYR) || defined(USE_LOGGER_USB_CDC))
+#ifdef USE_HOST
+  const char *HOT get_thread_name_() {
+    pthread_t current_thread = pthread_self();
+    if (pthread_equal(current_thread, main_thread_)) {
+      return nullptr;  // Main thread
+    }
+    // For non-main threads, return the thread name
+    // We store it in thread-local storage to avoid allocation
+    static thread_local char thread_name_buf[32];
+    if (pthread_getname_np(current_thread, thread_name_buf, sizeof(thread_name_buf)) == 0) {
+      return thread_name_buf;
+    }
+    return nullptr;
+  }
+#endif
+
+#if defined(USE_ESP32) || defined(USE_LIBRETINY)
   // Disable loop when task buffer is empty (with USB CDC check on ESP32)
   inline void disable_loop_when_buffer_empty_() {
     // Thread safety note: This is safe even if another task calls enable_loop_soon_any_context()

esphome/components/logger/logger_zephyr.cpp

@@ -14,7 +14,7 @@ namespace esphome::logger {
 static const char *const TAG = "logger";
 
 #ifdef USE_LOGGER_USB_CDC
-void Logger::cdc_loop_() {
+void Logger::loop() {
   if (this->uart_ != UART_SELECTION_USB_CDC || this->uart_dev_ == nullptr) {
     return;
   }

esphome/components/logger/task_log_buffer_esp32.cpp

@@ -31,8 +31,8 @@ TaskLogBuffer::~TaskLogBuffer() {
   }
 }
 
-bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &text_length) {
-  if (this->current_token_) {
+bool TaskLogBuffer::borrow_message_main_loop(LogMessage **message, const char **text, void **received_token) {
+  if (message == nullptr || text == nullptr || received_token == nullptr) {
     return false;
   }
 
@@ -43,24 +43,23 @@ bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &tex
   }
 
   LogMessage *msg = static_cast<LogMessage *>(received_item);
-  message = msg;
-  text_length = msg->text_length;
-  this->current_token_ = received_item;
+  *message = msg;
+  *text = msg->text_data();
+  *received_token = received_item;
 
   return true;
 }
 
-void TaskLogBuffer::release_message_main_loop() {
-  if (this->current_token_ == nullptr) {
+void TaskLogBuffer::release_message_main_loop(void *token) {
+  if (token == nullptr) {
     return;
   }
-  vRingbufferReturnItem(ring_buffer_, this->current_token_);
-  this->current_token_ = nullptr;
+  vRingbufferReturnItem(ring_buffer_, token);
   // Update counter to mark all messages as processed
   last_processed_counter_ = message_counter_.load(std::memory_order_relaxed);
 }
 
-bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
+bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, TaskHandle_t task_handle,
                                              const char *format, va_list args) {
   // First, calculate the exact length needed using a null buffer (no actual writing)
   va_list args_copy;
@@ -96,6 +95,7 @@ bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uin
   // Store the thread name now instead of waiting until main loop processing
   // This avoids crashes if the task completes or is deleted between when this message
   // is enqueued and when it's processed by the main loop
+  const char *thread_name = pcTaskGetName(task_handle);
   if (thread_name != nullptr) {
     strncpy(msg->thread_name, thread_name, sizeof(msg->thread_name) - 1);
     msg->thread_name[sizeof(msg->thread_name) - 1] = '\0';  // Ensure null termination

esphome/components/logger/task_log_buffer_esp32.h

@@ -52,13 +52,13 @@ class TaskLogBuffer {
   ~TaskLogBuffer();
 
   // NOT thread-safe - borrow a message from the ring buffer, only call from main loop
-  bool borrow_message_main_loop(LogMessage *&message, uint16_t &text_length);
+  bool borrow_message_main_loop(LogMessage **message, const char **text, void **received_token);
 
   // NOT thread-safe - release a message buffer and update the counter, only call from main loop
-  void release_message_main_loop();
+  void release_message_main_loop(void *token);
 
   // Thread-safe - send a message to the ring buffer from any thread
-  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
+  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, TaskHandle_t task_handle,
                                 const char *format, va_list args);
 
   // Check if there are messages ready to be processed using an atomic counter for performance
@@ -78,7 +78,6 @@ class TaskLogBuffer {
   // Atomic counter for message tracking (only differences matter)
   std::atomic<uint16_t> message_counter_{0};    // Incremented when messages are committed
   mutable uint16_t last_processed_counter_{0};  // Tracks last processed message
-  void *current_token_{nullptr};
 };
 
 }  // namespace esphome::logger

esphome/components/logger/task_log_buffer_host.cpp

@@ -10,16 +10,16 @@
 
 namespace esphome::logger {
 
-TaskLogBuffer::TaskLogBuffer(size_t slot_count) : slot_count_(slot_count) {
+TaskLogBufferHost::TaskLogBufferHost(size_t slot_count) : slot_count_(slot_count) {
   // Allocate message slots
   this->slots_ = std::make_unique<LogMessage[]>(slot_count);
 }
 
-TaskLogBuffer::~TaskLogBuffer() {
+TaskLogBufferHost::~TaskLogBufferHost() {
   // unique_ptr handles cleanup automatically
 }
 
-int TaskLogBuffer::acquire_write_slot_() {
+int TaskLogBufferHost::acquire_write_slot_() {
   // Try to reserve a slot using compare-and-swap
   size_t current_reserve = this->reserve_index_.load(std::memory_order_relaxed);
 
@@ -43,7 +43,7 @@ int TaskLogBuffer::acquire_write_slot_() {
   }
 }
 
-void TaskLogBuffer::commit_write_slot_(int slot_index) {
+void TaskLogBufferHost::commit_write_slot_(int slot_index) {
   // Mark the slot as ready for reading
   this->slots_[slot_index].ready.store(true, std::memory_order_release);
 
@@ -70,8 +70,8 @@ void TaskLogBuffer::commit_write_slot_(int slot_index) {
   }
 }
 
-bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
-                                             const char *format, va_list args) {
+bool TaskLogBufferHost::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *format,
+                                                 va_list args) {
   // Acquire a slot
   int slot_index = this->acquire_write_slot_();
   if (slot_index < 0) {
@@ -85,9 +85,11 @@ bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uin
   msg.tag = tag;
   msg.line = line;
 
-  // Store the thread name now to avoid crashes if thread exits before processing
-  if (thread_name != nullptr) {
-    strncpy(msg.thread_name, thread_name, sizeof(msg.thread_name) - 1);
+  // Get thread name using pthread
+  char thread_name_buf[LogMessage::MAX_THREAD_NAME_SIZE];
+  // pthread_getname_np works the same on Linux and macOS
+  if (pthread_getname_np(pthread_self(), thread_name_buf, sizeof(thread_name_buf)) == 0) {
+    strncpy(msg.thread_name, thread_name_buf, sizeof(msg.thread_name) - 1);
     msg.thread_name[sizeof(msg.thread_name) - 1] = '\0';
   } else {
     msg.thread_name[0] = '\0';
@@ -115,7 +117,11 @@ bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uin
   return true;
 }
 
-bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &text_length) {
+bool TaskLogBufferHost::get_message_main_loop(LogMessage **message) {
+  if (message == nullptr) {
+    return false;
+  }
+
   size_t current_read = this->read_index_.load(std::memory_order_relaxed);
   size_t current_write = this->write_index_.load(std::memory_order_acquire);
 
@@ -130,12 +136,11 @@ bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &tex
     return false;
   }
 
-  message = &msg;
-  text_length = msg.text_length;
+  *message = &msg;
   return true;
 }
 
-void TaskLogBuffer::release_message_main_loop() {
+void TaskLogBufferHost::release_message_main_loop() {
   size_t current_read = this->read_index_.load(std::memory_order_relaxed);
 
   // Clear the ready flag

esphome/components/logger/task_log_buffer_host.h

@@ -21,12 +21,12 @@ namespace esphome::logger {
  *
  * Threading Model: Multi-Producer Single-Consumer (MPSC)
  * - Multiple threads can safely call send_message_thread_safe() concurrently
- * - Only the main loop thread calls borrow_message_main_loop() and release_message_main_loop()
+ * - Only the main loop thread calls get_message_main_loop() and release_message_main_loop()
  *
  *   Producers (multiple threads)              Consumer (main loop only)
  *            │                                        │
  *            ▼                                        ▼
- *     acquire_write_slot_()                  bool borrow_message_main_loop()
+ *     acquire_write_slot_()                  get_message_main_loop()
  *       CAS on reserve_index_                  read write_index_
  *            │                                   check ready flag
  *            ▼                                        │
@@ -48,7 +48,7 @@ namespace esphome::logger {
  * - Atomic CAS for slot reservation allows multiple producers without locks
  * - Single consumer (main loop) processes messages in order
  */
-class TaskLogBuffer {
+class TaskLogBufferHost {
  public:
   // Default number of message slots - host has plenty of memory
   static constexpr size_t DEFAULT_SLOT_COUNT = 64;
@@ -71,24 +71,22 @@ class TaskLogBuffer {
       thread_name[0] = '\0';
       text[0] = '\0';
     }
-    inline char *text_data() { return this->text; }
   };
 
   /// Constructor that takes the number of message slots
-  explicit TaskLogBuffer(size_t slot_count);
-  ~TaskLogBuffer();
+  explicit TaskLogBufferHost(size_t slot_count);
+  ~TaskLogBufferHost();
 
   // NOT thread-safe - get next message from buffer, only call from main loop
   // Returns true if a message was retrieved, false if buffer is empty
-  bool borrow_message_main_loop(LogMessage *&message, uint16_t &text_length);
+  bool get_message_main_loop(LogMessage **message);
 
   // NOT thread-safe - release the message after processing, only call from main loop
   void release_message_main_loop();
 
   // Thread-safe - send a message to the buffer from any thread
   // Returns true if message was queued, false if buffer is full
-  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
-                                const char *format, va_list args);
+  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *format, va_list args);
 
   // Check if there are messages ready to be processed
   inline bool HOT has_messages() const {

esphome/components/logger/task_log_buffer_libretiny.cpp

@@ -8,7 +8,7 @@
 
 namespace esphome::logger {
 
-TaskLogBuffer::TaskLogBuffer(size_t total_buffer_size) {
+TaskLogBufferLibreTiny::TaskLogBufferLibreTiny(size_t total_buffer_size) {
   this->size_ = total_buffer_size;
   // Allocate memory for the circular buffer using ESPHome's RAM allocator
   RAMAllocator<uint8_t> allocator;
@@ -17,7 +17,7 @@ TaskLogBuffer::TaskLogBuffer(size_t total_buffer_size) {
   this->mutex_ = xSemaphoreCreateMutex();
 }
 
-TaskLogBuffer::~TaskLogBuffer() {
+TaskLogBufferLibreTiny::~TaskLogBufferLibreTiny() {
   if (this->mutex_ != nullptr) {
     vSemaphoreDelete(this->mutex_);
     this->mutex_ = nullptr;
@@ -29,7 +29,7 @@ TaskLogBuffer::~TaskLogBuffer() {
   }
 }
 
-size_t TaskLogBuffer::available_contiguous_space() const {
+size_t TaskLogBufferLibreTiny::available_contiguous_space() const {
   if (this->head_ >= this->tail_) {
     // head is ahead of or equal to tail
     // Available space is from head to end, plus from start to tail
@@ -47,7 +47,11 @@ size_t TaskLogBuffer::available_contiguous_space() const {
   }
 }
 
-bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &text_length) {
+bool TaskLogBufferLibreTiny::borrow_message_main_loop(LogMessage **message, const char **text) {
+  if (message == nullptr || text == nullptr) {
+    return false;
+  }
+
   // Check if buffer was initialized successfully
   if (this->mutex_ == nullptr || this->storage_ == nullptr) {
     return false;
@@ -73,15 +77,15 @@ bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &tex
     this->tail_ = 0;
     msg = reinterpret_cast<LogMessage *>(this->storage_);
   }
-  message = msg;
-  text_length = msg->text_length;
+  *message = msg;
+  *text = msg->text_data();
   this->current_message_size_ = message_total_size(msg->text_length);
 
   // Keep mutex held until release_message_main_loop()
   return true;
 }
 
-void TaskLogBuffer::release_message_main_loop() {
+void TaskLogBufferLibreTiny::release_message_main_loop() {
   // Advance tail past the current message
   this->tail_ += this->current_message_size_;
 
@@ -96,8 +100,8 @@ void TaskLogBuffer::release_message_main_loop() {
   xSemaphoreGive(this->mutex_);
 }
 
-bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
-                                             const char *format, va_list args) {
+bool TaskLogBufferLibreTiny::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line,
+                                                      TaskHandle_t task_handle, const char *format, va_list args) {
   // First, calculate the exact length needed using a null buffer (no actual writing)
   va_list args_copy;
   va_copy(args_copy, args);
@@ -158,6 +162,7 @@ bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uin
   msg->line = line;
 
   // Store the thread name now to avoid crashes if task is deleted before processing
+  const char *thread_name = pcTaskGetTaskName(task_handle);
   if (thread_name != nullptr) {
     strncpy(msg->thread_name, thread_name, sizeof(msg->thread_name) - 1);
     msg->thread_name[sizeof(msg->thread_name) - 1] = '\0';

esphome/components/logger/task_log_buffer_libretiny.h

@@ -40,7 +40,7 @@ namespace esphome::logger {
  * - Volatile counter enables fast has_messages() without lock overhead
  * - If message doesn't fit at end, padding is added and message wraps to start
  */
-class TaskLogBuffer {
+class TaskLogBufferLibreTiny {
  public:
   // Structure for a log message header (text data follows immediately after)
   struct LogMessage {
@@ -60,17 +60,17 @@ class TaskLogBuffer {
   static constexpr uint8_t PADDING_MARKER_LEVEL = 0xFF;
 
   // Constructor that takes a total buffer size
-  explicit TaskLogBuffer(size_t total_buffer_size);
-  ~TaskLogBuffer();
+  explicit TaskLogBufferLibreTiny(size_t total_buffer_size);
+  ~TaskLogBufferLibreTiny();
 
   // NOT thread-safe - borrow a message from the buffer, only call from main loop
-  bool borrow_message_main_loop(LogMessage *&message, uint16_t &text_length);
+  bool borrow_message_main_loop(LogMessage **message, const char **text);
 
   // NOT thread-safe - release a message buffer, only call from main loop
   void release_message_main_loop();
 
   // Thread-safe - send a message to the buffer from any thread
-  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
+  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, TaskHandle_t task_handle,
                                 const char *format, va_list args);
 
   // Fast check using volatile counter - no lock needed

esphome/components/logger/task_log_buffer_zephyr.cpp

@@ -1,116 +0,0 @@
-#ifdef USE_ZEPHYR
-
-#include "task_log_buffer_zephyr.h"
-
-namespace esphome::logger {
-
-__thread bool non_main_task_recursion_guard_;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
-
-#ifdef USE_ESPHOME_TASK_LOG_BUFFER
-
-static inline uint32_t total_size_in_32bit_words(uint16_t text_length) {
-  // Calculate total size in 32-bit words needed (header + text length + null terminator + 3(4 bytes alignment)
-  return (sizeof(TaskLogBuffer::LogMessage) + text_length + 1 + 3) / sizeof(uint32_t);
-}
-
-static inline uint32_t get_wlen(const mpsc_pbuf_generic *item) {
-  return total_size_in_32bit_words(reinterpret_cast<const TaskLogBuffer::LogMessage *>(item)->text_length);
-}
-
-TaskLogBuffer::TaskLogBuffer(size_t total_buffer_size) {
-  // alignment to 4 bytes
-  total_buffer_size = (total_buffer_size + 3) / sizeof(uint32_t);
-  this->mpsc_config_.buf = new uint32_t[total_buffer_size];
-  this->mpsc_config_.size = total_buffer_size;
-  this->mpsc_config_.flags = MPSC_PBUF_MODE_OVERWRITE;
-  this->mpsc_config_.get_wlen = get_wlen,
-
-  mpsc_pbuf_init(&this->log_buffer_, &this->mpsc_config_);
-}
-
-TaskLogBuffer::~TaskLogBuffer() { delete[] this->mpsc_config_.buf; }
-
-bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
-                                             const char *format, va_list args) {
-  // First, calculate the exact length needed using a null buffer (no actual writing)
-  va_list args_copy;
-  va_copy(args_copy, args);
-  int ret = vsnprintf(nullptr, 0, format, args_copy);
-  va_end(args_copy);
-
-  if (ret <= 0) {
-    return false;  // Formatting error or empty message
-  }
-
-  // Calculate actual text length (capped to maximum size)
-  static constexpr size_t MAX_TEXT_SIZE = 255;
-  size_t text_length = (static_cast<size_t>(ret) > MAX_TEXT_SIZE) ? MAX_TEXT_SIZE : ret;
-  size_t total_size = total_size_in_32bit_words(text_length);
-  auto *msg = reinterpret_cast<LogMessage *>(mpsc_pbuf_alloc(&this->log_buffer_, total_size, K_NO_WAIT));
-  if (msg == nullptr) {
-    return false;
-  }
-  msg->level = level;
-  msg->tag = tag;
-  msg->line = line;
-  strncpy(msg->thread_name, thread_name, sizeof(msg->thread_name) - 1);
-  msg->thread_name[sizeof(msg->thread_name) - 1] = '\0';  // Ensure null termination
-
-  // Format the message text directly into the acquired memory
-  // We add 1 to text_length to ensure space for null terminator during formatting
-  char *text_area = msg->text_data();
-  ret = vsnprintf(text_area, text_length + 1, format, args);
-
-  // Handle unexpected formatting error (ret < 0 is encoding error; ret == 0 is valid empty output)
-  if (ret < 0) {
-    // this should not happen, vsnprintf was called already once
-    // fill with '\n' to not call mpsc_pbuf_free from producer
-    // it will be trimmed anyway
-    for (size_t i = 0; i < text_length; ++i) {
-      text_area[i] = '\n';
-    }
-    text_area[text_length] = 0;
-    // do not return false to free the buffer from main thread
-  }
-
-  msg->text_length = text_length;
-
-  mpsc_pbuf_commit(&this->log_buffer_, reinterpret_cast<mpsc_pbuf_generic *>(msg));
-  return true;
-}
-
-bool TaskLogBuffer::borrow_message_main_loop(LogMessage *&message, uint16_t &text_length) {
-  if (this->current_token_) {
-    return false;
-  }
-
-  this->current_token_ = mpsc_pbuf_claim(&this->log_buffer_);
-
-  if (this->current_token_ == nullptr) {
-    return false;
-  }
-
-  // we claimed buffer already, const_cast is safe here
-  message = const_cast<LogMessage *>(reinterpret_cast<const LogMessage *>(this->current_token_));
-
-  text_length = message->text_length;
-  // Remove trailing newlines
-  while (text_length > 0 && message->text_data()[text_length - 1] == '\n') {
-    text_length--;
-  }
-
-  return true;
-}
-
-void TaskLogBuffer::release_message_main_loop() {
-  if (this->current_token_ == nullptr) {
-    return;
-  }
-  mpsc_pbuf_free(&this->log_buffer_, this->current_token_);
-  this->current_token_ = nullptr;
-}
-#endif  // USE_ESPHOME_TASK_LOG_BUFFER
-
-}  // namespace esphome::logger
-
-#endif  // USE_ZEPHYR

esphome/components/logger/task_log_buffer_zephyr.h

@@ -1,66 +0,0 @@
-#pragma once
-
-#ifdef USE_ZEPHYR
-
-#include "esphome/core/defines.h"
-#include "esphome/core/helpers.h"
-#include <zephyr/sys/mpsc_pbuf.h>
-
-namespace esphome::logger {
-
-// "0x" + 2 hex digits per byte + '\0'
-static constexpr size_t MAX_POINTER_REPRESENTATION = 2 + sizeof(void *) * 2 + 1;
-
-extern __thread bool non_main_task_recursion_guard_;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
-
-#ifdef USE_ESPHOME_TASK_LOG_BUFFER
-
-class TaskLogBuffer {
- public:
-  // Structure for a log message header (text data follows immediately after)
-  struct LogMessage {
-    MPSC_PBUF_HDR;  // this is only 2 bits but no more than 30 bits directly after
-    uint16_t line;  // Source code line number
-    uint8_t level;  // Log level (0-7)
-#if defined(CONFIG_THREAD_NAME)
-    char thread_name[CONFIG_THREAD_MAX_NAME_LEN];  // Store thread name directly (only used for non-main threads)
-#else
-    char thread_name[MAX_POINTER_REPRESENTATION];  // Store thread name directly (only used for non-main threads)
-#endif
-    const char *tag;       // We store the pointer, assuming tags are static
-    uint16_t text_length;  // Length of the message text (up to ~64KB)
-
-    // Methods for accessing message contents
-    inline char *text_data() { return reinterpret_cast<char *>(this) + sizeof(LogMessage); }
-  };
-  // Constructor that takes a total buffer size
-  explicit TaskLogBuffer(size_t total_buffer_size);
-  ~TaskLogBuffer();
-
-  // Check if there are messages ready to be processed using an atomic counter for performance
-  inline bool HOT has_messages() { return mpsc_pbuf_is_pending(&this->log_buffer_); }
-
-  // Get the total buffer size in bytes
-  inline size_t size() const { return this->mpsc_config_.size * sizeof(uint32_t); }
-
-  // NOT thread-safe - borrow a message from the ring buffer, only call from main loop
-  bool borrow_message_main_loop(LogMessage *&message, uint16_t &text_length);
-
-  // NOT thread-safe - release a message buffer and update the counter, only call from main loop
-  void release_message_main_loop();
-
-  // Thread-safe - send a message to the ring buffer from any thread
-  bool send_message_thread_safe(uint8_t level, const char *tag, uint16_t line, const char *thread_name,
-                                const char *format, va_list args);
-
- protected:
-  mpsc_pbuf_buffer_config mpsc_config_{};
-  mpsc_pbuf_buffer log_buffer_{};
-  const mpsc_pbuf_generic *current_token_{};
-};
-
-#endif  // USE_ESPHOME_TASK_LOG_BUFFER
-
-}  // namespace esphome::logger
-
-#endif  // USE_ZEPHYR

esphome/components/mdns/mdns_component.h

@@ -45,28 +45,9 @@ class MDNSComponent : public Component {
   void setup() override;
   void dump_config() override;
 
-  // Polling interval for MDNS.update() on platforms that require it (ESP8266, RP2040).
-  //
-  // On these platforms, MDNS.update() calls _process(true) which only manages timer-driven
-  // state machines (probe/announce timeouts and service query cache TTLs). Incoming mDNS
-  // packets are handled independently via the lwIP onRx UDP callback and are NOT affected
-  // by how often update() is called.
-  //
-  // The shortest internal timer is the 250ms probe interval (RFC 6762 Section 8.1).
-  // Announcement intervals are 1000ms and cache TTL checks are on the order of seconds
-  // to minutes. A 50ms polling interval provides sufficient resolution for all timers
-  // while completely removing mDNS from the per-iteration loop list.
-  //
-  // In steady state (after the ~8 second boot probe/announce phase completes), update()
-  // checks timers that are set to never expire, making every call pure overhead.
-  //
-  // Tasmota uses a 50ms main loop cycle with mDNS working correctly, confirming this
-  // interval is safe in production.
-  //
-  // By using set_interval() instead of overriding loop(), the component is excluded from
-  // the main loop list via has_overridden_loop(), eliminating all per-iteration overhead
-  // including virtual dispatch.
-  static constexpr uint32_t MDNS_UPDATE_INTERVAL_MS = 50;
+#if (defined(USE_ESP8266) || defined(USE_RP2040)) && defined(USE_ARDUINO)
+  void loop() override;
+#endif
   float get_setup_priority() const override { return setup_priority::AFTER_CONNECTION; }
 
 #ifdef USE_MDNS_EXTRA_SERVICES

esphome/components/mdns/mdns_esp8266.cpp

@@ -36,14 +36,9 @@ static void register_esp8266(MDNSComponent *, StaticVector<MDNSService, MDNS_SER
   }
 }
 
-void MDNSComponent::setup() {
-  this->setup_buffers_and_register_(register_esp8266);
-  // Schedule MDNS.update() via set_interval() instead of overriding loop().
-  // This removes the component from the per-iteration loop list entirely,
-  // eliminating virtual dispatch overhead on every main loop cycle.
-  // See MDNS_UPDATE_INTERVAL_MS comment in mdns_component.h for safety analysis.
-  this->set_interval(MDNS_UPDATE_INTERVAL_MS, []() { MDNS.update(); });
-}
+void MDNSComponent::setup() { this->setup_buffers_and_register_(register_esp8266); }
+
+void MDNSComponent::loop() { MDNS.update(); }
 
 void MDNSComponent::on_shutdown() {
   MDNS.close();

esphome/components/mdns/mdns_rp2040.cpp

@@ -35,14 +35,9 @@ static void register_rp2040(MDNSComponent *, StaticVector<MDNSService, MDNS_SERV
   }
 }
 
-void MDNSComponent::setup() {
-  this->setup_buffers_and_register_(register_rp2040);
-  // Schedule MDNS.update() via set_interval() instead of overriding loop().
-  // This removes the component from the per-iteration loop list entirely,
-  // eliminating virtual dispatch overhead on every main loop cycle.
-  // See MDNS_UPDATE_INTERVAL_MS comment in mdns_component.h for safety analysis.
-  this->set_interval(MDNS_UPDATE_INTERVAL_MS, []() { MDNS.update(); });
-}
+void MDNSComponent::setup() { this->setup_buffers_and_register_(register_rp2040); }
+
+void MDNSComponent::loop() { MDNS.update(); }
 
 void MDNSComponent::on_shutdown() {
   MDNS.close();

esphome/components/mipi_dsi/models/waveshare.py

@@ -120,101 +120,3 @@ DriverChip(
         (0xB2, 0x10),
     ],
 )
-
-DriverChip(
-    "WAVESHARE-ESP32-P4-WIFI6-TOUCH-LCD-3.4C",
-    height=800,
-    width=800,
-    hsync_back_porch=20,
-    hsync_pulse_width=20,
-    hsync_front_porch=40,
-    vsync_back_porch=12,
-    vsync_pulse_width=4,
-    vsync_front_porch=24,
-    pclk_frequency="80MHz",
-    lane_bit_rate="1.5Gbps",
-    swap_xy=cv.UNDEFINED,
-    color_order="RGB",
-    initsequence=[
-        (0xE0, 0x00),  # select userpage
-        (0xE1, 0x93), (0xE2, 0x65), (0xE3, 0xF8),
-        (0x80, 0x01),  # Select number of lanes (2)
-        (0xE0, 0x01),  # select page 1
-        (0x00, 0x00), (0x01, 0x41), (0x03, 0x10), (0x04, 0x44), (0x17, 0x00), (0x18, 0xD0), (0x19, 0x00), (0x1A, 0x00),
-        (0x1B, 0xD0), (0x1C, 0x00), (0x24, 0xFE), (0x35, 0x26), (0x37, 0x09), (0x38, 0x04), (0x39, 0x08), (0x3A, 0x0A),
-        (0x3C, 0x78), (0x3D, 0xFF), (0x3E, 0xFF), (0x3F, 0xFF), (0x40, 0x00), (0x41, 0x64), (0x42, 0xC7), (0x43, 0x18),
-        (0x44, 0x0B), (0x45, 0x14), (0x55, 0x02), (0x57, 0x49), (0x59, 0x0A), (0x5A, 0x1B), (0x5B, 0x19), (0x5D, 0x7F),
-        (0x5E, 0x56), (0x5F, 0x43), (0x60, 0x37), (0x61, 0x33), (0x62, 0x25), (0x63, 0x2A), (0x64, 0x16), (0x65, 0x30),
-        (0x66, 0x2F), (0x67, 0x32), (0x68, 0x53), (0x69, 0x43), (0x6A, 0x4C), (0x6B, 0x40), (0x6C, 0x3D), (0x6D, 0x31),
-        (0x6E, 0x20), (0x6F, 0x0F), (0x70, 0x7F), (0x71, 0x56), (0x72, 0x43), (0x73, 0x37), (0x74, 0x33), (0x75, 0x25),
-        (0x76, 0x2A), (0x77, 0x16), (0x78, 0x30), (0x79, 0x2F), (0x7A, 0x32), (0x7B, 0x53), (0x7C, 0x43), (0x7D, 0x4C),
-        (0x7E, 0x40), (0x7F, 0x3D), (0x80, 0x31), (0x81, 0x20), (0x82, 0x0F),
-        (0xE0, 0x02),  # select page 2
-        (0x00, 0x5F), (0x01, 0x5F), (0x02, 0x5E), (0x03, 0x5E), (0x04, 0x50), (0x05, 0x48), (0x06, 0x48), (0x07, 0x4A),
-        (0x08, 0x4A), (0x09, 0x44), (0x0A, 0x44), (0x0B, 0x46), (0x0C, 0x46), (0x0D, 0x5F), (0x0E, 0x5F), (0x0F, 0x57),
-        (0x10, 0x57), (0x11, 0x77), (0x12, 0x77), (0x13, 0x40), (0x14, 0x42), (0x15, 0x5F), (0x16, 0x5F), (0x17, 0x5F),
-        (0x18, 0x5E), (0x19, 0x5E), (0x1A, 0x50), (0x1B, 0x49), (0x1C, 0x49), (0x1D, 0x4B), (0x1E, 0x4B), (0x1F, 0x45),
-        (0x20, 0x45), (0x21, 0x47), (0x22, 0x47), (0x23, 0x5F), (0x24, 0x5F), (0x25, 0x57), (0x26, 0x57), (0x27, 0x77),
-        (0x28, 0x77), (0x29, 0x41), (0x2A, 0x43), (0x2B, 0x5F), (0x2C, 0x1E), (0x2D, 0x1E), (0x2E, 0x1F), (0x2F, 0x1F),
-        (0x30, 0x10), (0x31, 0x07), (0x32, 0x07), (0x33, 0x05), (0x34, 0x05), (0x35, 0x0B), (0x36, 0x0B), (0x37, 0x09),
-        (0x38, 0x09), (0x39, 0x1F), (0x3A, 0x1F), (0x3B, 0x17), (0x3C, 0x17), (0x3D, 0x17), (0x3E, 0x17), (0x3F, 0x03),
-        (0x40, 0x01), (0x41, 0x1F), (0x42, 0x1E), (0x43, 0x1E), (0x44, 0x1F), (0x45, 0x1F), (0x46, 0x10), (0x47, 0x06),
-        (0x48, 0x06), (0x49, 0x04), (0x4A, 0x04), (0x4B, 0x0A), (0x4C, 0x0A), (0x4D, 0x08), (0x4E, 0x08), (0x4F, 0x1F),
-        (0x50, 0x1F), (0x51, 0x17), (0x52, 0x17), (0x53, 0x17), (0x54, 0x17), (0x55, 0x02), (0x56, 0x00), (0x57, 0x1F),
-        (0xE0, 0x02),  # select page 2
-        (0x58, 0x40), (0x59, 0x00), (0x5A, 0x00), (0x5B, 0x30), (0x5C, 0x01), (0x5D, 0x30), (0x5E, 0x01), (0x5F, 0x02),
-        (0x60, 0x30), (0x61, 0x03), (0x62, 0x04), (0x63, 0x04), (0x64, 0xA6), (0x65, 0x43), (0x66, 0x30), (0x67, 0x73),
-        (0x68, 0x05), (0x69, 0x04), (0x6A, 0x7F), (0x6B, 0x08), (0x6C, 0x00), (0x6D, 0x04), (0x6E, 0x04), (0x6F, 0x88),
-        (0x75, 0xD9), (0x76, 0x00), (0x77, 0x33), (0x78, 0x43),
-        (0xE0, 0x00),  # select userpage
-    ],
-)
-
-DriverChip(
-    "WAVESHARE-ESP32-P4-WIFI6-TOUCH-LCD-4C",
-    height=720,
-    width=720,
-    hsync_back_porch=20,
-    hsync_pulse_width=20,
-    hsync_front_porch=40,
-    vsync_back_porch=12,
-    vsync_pulse_width=4,
-    vsync_front_porch=24,
-    pclk_frequency="80MHz",
-    lane_bit_rate="1.5Gbps",
-    swap_xy=cv.UNDEFINED,
-    color_order="RGB",
-    initsequence=[
-        (0xE0, 0x00),  # select userpage
-        (0xE1, 0x93), (0xE2, 0x65), (0xE3, 0xF8),
-        (0x80, 0x01),  # Select number of lanes (2)
-        (0xE0, 0x01),  # select page 1
-        (0x00, 0x00), (0x01, 0x41), (0x03, 0x10), (0x04, 0x44), (0x17, 0x00), (0x18, 0xD0), (0x19, 0x00), (0x1A, 0x00),
-        (0x1B, 0xD0), (0x1C, 0x00), (0x24, 0xFE), (0x35, 0x26), (0x37, 0x09), (0x38, 0x04), (0x39, 0x08), (0x3A, 0x0A),
-        (0x3C, 0x78), (0x3D, 0xFF), (0x3E, 0xFF), (0x3F, 0xFF), (0x40, 0x04), (0x41, 0x64), (0x42, 0xC7), (0x43, 0x18),
-        (0x44, 0x0B), (0x45, 0x14), (0x55, 0x02), (0x57, 0x49), (0x59, 0x0A), (0x5A, 0x1B), (0x5B, 0x19), (0x5D, 0x7F),
-        (0x5E, 0x56), (0x5F, 0x43), (0x60, 0x37), (0x61, 0x33), (0x62, 0x25), (0x63, 0x2A), (0x64, 0x16), (0x65, 0x30),
-        (0x66, 0x2F), (0x67, 0x32), (0x68, 0x53), (0x69, 0x43), (0x6A, 0x4C), (0x6B, 0x40), (0x6C, 0x3D), (0x6D, 0x31),
-        (0x6E, 0x20), (0x6F, 0x0F), (0x70, 0x7F), (0x71, 0x56), (0x72, 0x43), (0x73, 0x37), (0x74, 0x33), (0x75, 0x25),
-        (0x76, 0x2A), (0x77, 0x16), (0x78, 0x30), (0x79, 0x2F), (0x7A, 0x32), (0x7B, 0x53), (0x7C, 0x43), (0x7D, 0x4C),
-        (0x7E, 0x40), (0x7F, 0x3D), (0x80, 0x31), (0x81, 0x20), (0x82, 0x0F),
-        (0xE0, 0x02),  # select page 2
-        (0x00, 0x5F), (0x01, 0x5F), (0x02, 0x5E), (0x03, 0x5E), (0x04, 0x50), (0x05, 0x48), (0x06, 0x48), (0x07, 0x4A),
-        (0x08, 0x4A), (0x09, 0x44), (0x0A, 0x44), (0x0B, 0x46), (0x0C, 0x46), (0x0D, 0x5F), (0x0E, 0x5F), (0x0F, 0x57),
-        (0x10, 0x57), (0x11, 0x77), (0x12, 0x77), (0x13, 0x40), (0x14, 0x42), (0x15, 0x5F), (0x16, 0x5F), (0x17, 0x5F),
-        (0x18, 0x5E), (0x19, 0x5E), (0x1A, 0x50), (0x1B, 0x49), (0x1C, 0x49), (0x1D, 0x4B), (0x1E, 0x4B), (0x1F, 0x45),
-        (0x20, 0x45), (0x21, 0x47), (0x22, 0x47), (0x23, 0x5F), (0x24, 0x5F), (0x25, 0x57), (0x26, 0x57), (0x27, 0x77),
-        (0x28, 0x77), (0x29, 0x41), (0x2A, 0x43), (0x2B, 0x5F), (0x2C, 0x1E), (0x2D, 0x1E), (0x2E, 0x1F), (0x2F, 0x1F),
-        (0x30, 0x10), (0x31, 0x07), (0x32, 0x07), (0x33, 0x05), (0x34, 0x05), (0x35, 0x0B), (0x36, 0x0B), (0x37, 0x09),
-        (0x38, 0x09), (0x39, 0x1F), (0x3A, 0x1F), (0x3B, 0x17), (0x3C, 0x17), (0x3D, 0x17), (0x3E, 0x17), (0x3F, 0x03),
-        (0x40, 0x01), (0x41, 0x1F), (0x42, 0x1E), (0x43, 0x1E), (0x44, 0x1F), (0x45, 0x1F), (0x46, 0x10), (0x47, 0x06),
-        (0x48, 0x06), (0x49, 0x04), (0x4A, 0x04), (0x4B, 0x0A), (0x4C, 0x0A), (0x4D, 0x08), (0x4E, 0x08), (0x4F, 0x1F),
-        (0x50, 0x1F), (0x51, 0x17), (0x52, 0x17), (0x53, 0x17), (0x54, 0x17), (0x55, 0x02), (0x56, 0x00), (0x57, 0x1F),
-        (0xE0, 0x02),  # select page 2
-        (0x58, 0x40), (0x59, 0x00), (0x5A, 0x00), (0x5B, 0x30), (0x5C, 0x01), (0x5D, 0x30), (0x5E, 0x01), (0x5F, 0x02),
-        (0x60, 0x30), (0x61, 0x03), (0x62, 0x04), (0x63, 0x04), (0x64, 0xA6), (0x65, 0x43), (0x66, 0x30), (0x67, 0x73),
-        (0x68, 0x05), (0x69, 0x04), (0x6A, 0x7F), (0x6B, 0x08), (0x6C, 0x00), (0x6D, 0x04), (0x6E, 0x04), (0x6F, 0x88),
-        (0x75, 0xD9), (0x76, 0x00), (0x77, 0x33), (0x78, 0x43),
-        (0xE0, 0x00),  # select userpage
-    ]
-)

esphome/components/mipi_rgb/display.py

@@ -11,7 +11,7 @@ from esphome.components.const import (
     CONF_DRAW_ROUNDING,
 )
 from esphome.components.display import CONF_SHOW_TEST_CARD
-from esphome.components.esp32 import VARIANT_ESP32P4, VARIANT_ESP32S3, only_on_variant
+from esphome.components.esp32 import VARIANT_ESP32S3, only_on_variant
 from esphome.components.mipi import (
     COLOR_ORDERS,
     CONF_DE_PIN,
@@ -225,7 +225,7 @@ def _config_schema(config):
     return cv.All(
         schema,
         cv.only_on_esp32,
-        only_on_variant(supported=[VARIANT_ESP32S3, VARIANT_ESP32P4]),
+        only_on_variant(supported=[VARIANT_ESP32S3]),
     )(config)
 
 

esphome/components/mipi_rgb/mipi_rgb.cpp

@@ -1,4 +1,4 @@
-#if defined(USE_ESP32_VARIANT_ESP32S3) || defined(USE_ESP32_VARIANT_ESP32P4)
+#ifdef USE_ESP32_VARIANT_ESP32S3
 #include "mipi_rgb.h"
 #include "esphome/core/gpio.h"
 #include "esphome/core/hal.h"
@@ -401,4 +401,4 @@ void MipiRgb::dump_config() {
 
 }  // namespace mipi_rgb
 }  // namespace esphome
-#endif  // defined(USE_ESP32_VARIANT_ESP32S3) || defined(USE_ESP32_VARIANT_ESP32P4)
+#endif  // USE_ESP32_VARIANT_ESP32S3

esphome/components/mipi_rgb/mipi_rgb.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#if defined(USE_ESP32_VARIANT_ESP32S3) || defined(USE_ESP32_VARIANT_ESP32P4)
+#ifdef USE_ESP32_VARIANT_ESP32S3
 #include "esphome/core/gpio.h"
 #include "esphome/components/display/display.h"
 #include "esp_lcd_panel_ops.h"
@@ -28,7 +28,7 @@ class MipiRgb : public display::Display {
   void setup() override;
   void loop() override;
   void update() override;
-  void fill(Color color) override;
+  void fill(Color color);
   void draw_pixels_at(int x_start, int y_start, int w, int h, const uint8_t *ptr, display::ColorOrder order,
                       display::ColorBitness bitness, bool big_endian, int x_offset, int y_offset, int x_pad) override;
   void write_to_display_(int x_start, int y_start, int w, int h, const uint8_t *ptr, int x_offset, int y_offset,
@@ -115,7 +115,7 @@ class MipiRgbSpi : public MipiRgb,
   void write_command_(uint8_t value);
   void write_data_(uint8_t value);
   void write_init_sequence_();
-  void dump_config() override;
+  void dump_config();
 
   GPIOPin *dc_pin_{nullptr};
   std::vector<uint8_t> init_sequence_;

esphome/components/modbus/modbus.cpp

@@ -20,10 +20,10 @@ void Modbus::loop() {
   const uint32_t now = App.get_loop_component_start_time();
 
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[64];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }
@@ -228,50 +228,39 @@ void Modbus::send(uint8_t address, uint8_t function_code, uint16_t start_address
     return;
   }
 
-  static constexpr size_t ADDR_SIZE = 1;
-  static constexpr size_t FC_SIZE = 1;
-  static constexpr size_t START_ADDR_SIZE = 2;
-  static constexpr size_t NUM_ENTITIES_SIZE = 2;
-  static constexpr size_t BYTE_COUNT_SIZE = 1;
-  static constexpr size_t MAX_PAYLOAD_SIZE = std::numeric_limits<uint8_t>::max();
-  static constexpr size_t CRC_SIZE = 2;
-  static constexpr size_t MAX_FRAME_SIZE =
-      ADDR_SIZE + FC_SIZE + START_ADDR_SIZE + NUM_ENTITIES_SIZE + BYTE_COUNT_SIZE + MAX_PAYLOAD_SIZE + CRC_SIZE;
-  uint8_t data[MAX_FRAME_SIZE];
-  size_t pos = 0;
-
-  data[pos++] = address;
-  data[pos++] = function_code;
+  std::vector<uint8_t> data;
+  data.push_back(address);
+  data.push_back(function_code);
   if (this->role == ModbusRole::CLIENT) {
-    data[pos++] = start_address >> 8;
-    data[pos++] = start_address >> 0;
+    data.push_back(start_address >> 8);
+    data.push_back(start_address >> 0);
     if (function_code != ModbusFunctionCode::WRITE_SINGLE_COIL &&
         function_code != ModbusFunctionCode::WRITE_SINGLE_REGISTER) {
-      data[pos++] = number_of_entities >> 8;
-      data[pos++] = number_of_entities >> 0;
+      data.push_back(number_of_entities >> 8);
+      data.push_back(number_of_entities >> 0);
     }
   }
 
   if (payload != nullptr) {
     if (this->role == ModbusRole::SERVER || function_code == ModbusFunctionCode::WRITE_MULTIPLE_COILS ||
         function_code == ModbusFunctionCode::WRITE_MULTIPLE_REGISTERS) {  // Write multiple
-      data[pos++] = payload_len;                                          // Byte count is required for write
+      data.push_back(payload_len);                                        // Byte count is required for write
     } else {
       payload_len = 2;  // Write single register or coil
     }
     for (int i = 0; i < payload_len; i++) {
-      data[pos++] = payload[i];
+      data.push_back(payload[i]);
     }
   }
 
-  auto crc = crc16(data, pos);
-  data[pos++] = crc >> 0;
-  data[pos++] = crc >> 8;
+  auto crc = crc16(data.data(), data.size());
+  data.push_back(crc >> 0);
+  data.push_back(crc >> 8);
 
   if (this->flow_control_pin_ != nullptr)
     this->flow_control_pin_->digital_write(true);
 
-  this->write_array(data, pos);
+  this->write_array(data);
   this->flush();
 
   if (this->flow_control_pin_ != nullptr)
@@ -281,7 +270,7 @@ void Modbus::send(uint8_t address, uint8_t function_code, uint16_t start_address
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
   char hex_buf[format_hex_pretty_size(MODBUS_MAX_LOG_BYTES)];
 #endif
-  ESP_LOGV(TAG, "Modbus write: %s", format_hex_pretty_to(hex_buf, data, pos));
+  ESP_LOGV(TAG, "Modbus write: %s", format_hex_pretty_to(hex_buf, data.data(), data.size()));
 }
 
 // Helper function for lambdas

esphome/components/mqtt/mqtt_client.cpp

@@ -170,8 +170,10 @@ void MQTTClientComponent::send_device_info_() {
 void MQTTClientComponent::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
   (void) tag;
   if (level <= this->log_level_ && this->is_connected()) {
-    this->publish(this->log_message_.topic.c_str(), message, message_len, this->log_message_.qos,
-                  this->log_message_.retain);
+    this->publish({.topic = this->log_message_.topic,
+                   .payload = std::string(message, message_len),
+                   .qos = this->log_message_.qos,
+                   .retain = this->log_message_.retain});
   }
 }
 #endif

esphome/components/mqtt/mqtt_climate.cpp

@@ -300,11 +300,9 @@ const EntityBase *MQTTClimateComponent::get_entity() const { return this->device
 
 bool MQTTClimateComponent::publish_state_() {
   auto traits = this->device_->get_traits();
-  // Reusable stack buffer for topic construction (avoids heap allocation per publish)
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   // mode
   bool success = true;
-  if (!this->publish(this->get_mode_state_topic_to(topic_buf), climate_mode_to_mqtt_str(this->device_->mode)))
+  if (!this->publish(this->get_mode_state_topic(), climate_mode_to_mqtt_str(this->device_->mode)))
     success = false;
   int8_t target_accuracy = traits.get_target_temperature_accuracy_decimals();
   int8_t current_accuracy = traits.get_current_temperature_accuracy_decimals();
@@ -313,70 +311,68 @@ bool MQTTClimateComponent::publish_state_() {
   if (traits.has_feature_flags(climate::CLIMATE_SUPPORTS_CURRENT_TEMPERATURE) &&
       !std::isnan(this->device_->current_temperature)) {
     len = value_accuracy_to_buf(payload, this->device_->current_temperature, current_accuracy);
-    if (!this->publish(this->get_current_temperature_state_topic_to(topic_buf), payload, len))
+    if (!this->publish(this->get_current_temperature_state_topic(), payload, len))
       success = false;
   }
   if (traits.has_feature_flags(climate::CLIMATE_SUPPORTS_TWO_POINT_TARGET_TEMPERATURE |
                                climate::CLIMATE_REQUIRES_TWO_POINT_TARGET_TEMPERATURE)) {
     len = value_accuracy_to_buf(payload, this->device_->target_temperature_low, target_accuracy);
-    if (!this->publish(this->get_target_temperature_low_state_topic_to(topic_buf), payload, len))
+    if (!this->publish(this->get_target_temperature_low_state_topic(), payload, len))
       success = false;
     len = value_accuracy_to_buf(payload, this->device_->target_temperature_high, target_accuracy);
-    if (!this->publish(this->get_target_temperature_high_state_topic_to(topic_buf), payload, len))
+    if (!this->publish(this->get_target_temperature_high_state_topic(), payload, len))
       success = false;
   } else {
     len = value_accuracy_to_buf(payload, this->device_->target_temperature, target_accuracy);
-    if (!this->publish(this->get_target_temperature_state_topic_to(topic_buf), payload, len))
+    if (!this->publish(this->get_target_temperature_state_topic(), payload, len))
       success = false;
   }
 
   if (traits.has_feature_flags(climate::CLIMATE_SUPPORTS_CURRENT_HUMIDITY) &&
       !std::isnan(this->device_->current_humidity)) {
     len = value_accuracy_to_buf(payload, this->device_->current_humidity, 0);
-    if (!this->publish(this->get_current_humidity_state_topic_to(topic_buf), payload, len))
+    if (!this->publish(this->get_current_humidity_state_topic(), payload, len))
       success = false;
   }
   if (traits.has_feature_flags(climate::CLIMATE_SUPPORTS_TARGET_HUMIDITY) &&
       !std::isnan(this->device_->target_humidity)) {
     len = value_accuracy_to_buf(payload, this->device_->target_humidity, 0);
-    if (!this->publish(this->get_target_humidity_state_topic_to(topic_buf), payload, len))
+    if (!this->publish(this->get_target_humidity_state_topic(), payload, len))
       success = false;
   }
 
   if (traits.get_supports_presets() || !traits.get_supported_custom_presets().empty()) {
     if (this->device_->has_custom_preset()) {
-      if (!this->publish(this->get_preset_state_topic_to(topic_buf), this->device_->get_custom_preset().c_str()))
+      if (!this->publish(this->get_preset_state_topic(), this->device_->get_custom_preset()))
         success = false;
     } else if (this->device_->preset.has_value()) {
-      if (!this->publish(this->get_preset_state_topic_to(topic_buf),
-                         climate_preset_to_mqtt_str(this->device_->preset.value())))
+      if (!this->publish(this->get_preset_state_topic(), climate_preset_to_mqtt_str(this->device_->preset.value())))
         success = false;
-    } else if (!this->publish(this->get_preset_state_topic_to(topic_buf), "")) {
+    } else if (!this->publish(this->get_preset_state_topic(), "")) {
       success = false;
     }
   }
 
   if (traits.has_feature_flags(climate::CLIMATE_SUPPORTS_ACTION)) {
-    if (!this->publish(this->get_action_state_topic_to(topic_buf), climate_action_to_mqtt_str(this->device_->action)))
+    if (!this->publish(this->get_action_state_topic(), climate_action_to_mqtt_str(this->device_->action)))
       success = false;
   }
 
   if (traits.get_supports_fan_modes()) {
     if (this->device_->has_custom_fan_mode()) {
-      if (!this->publish(this->get_fan_mode_state_topic_to(topic_buf), this->device_->get_custom_fan_mode().c_str()))
+      if (!this->publish(this->get_fan_mode_state_topic(), this->device_->get_custom_fan_mode()))
         success = false;
     } else if (this->device_->fan_mode.has_value()) {
-      if (!this->publish(this->get_fan_mode_state_topic_to(topic_buf),
+      if (!this->publish(this->get_fan_mode_state_topic(),
                          climate_fan_mode_to_mqtt_str(this->device_->fan_mode.value())))
         success = false;
-    } else if (!this->publish(this->get_fan_mode_state_topic_to(topic_buf), "")) {
+    } else if (!this->publish(this->get_fan_mode_state_topic(), "")) {
       success = false;
     }
   }
 
   if (traits.get_supports_swing_modes()) {
-    if (!this->publish(this->get_swing_mode_state_topic_to(topic_buf),
-                       climate_swing_mode_to_mqtt_str(this->device_->swing_mode)))
+    if (!this->publish(this->get_swing_mode_state_topic(), climate_swing_mode_to_mqtt_str(this->device_->swing_mode)))
       success = false;
   }
 

esphome/components/mqtt/mqtt_component.h

@@ -59,11 +59,6 @@ void log_mqtt_component(const char *tag, MQTTComponent *obj, bool state_topic, b
 \
  public: \
   void set_custom_##name##_##type##_topic(const std::string &topic) { this->custom_##name##_##type##_topic_ = topic; } \
-  StringRef get_##name##_##type##_topic_to(std::span<char, MQTT_DEFAULT_TOPIC_MAX_LEN> buf) const { \
-    if (!this->custom_##name##_##type##_topic_.empty()) \
-      return StringRef(this->custom_##name##_##type##_topic_.data(), this->custom_##name##_##type##_topic_.size()); \
-    return this->get_default_topic_for_to_(buf, #name "/" #type, sizeof(#name "/" #type) - 1); \
-  } \
   std::string get_##name##_##type##_topic() const { \
     if (this->custom_##name##_##type##_topic_.empty()) \
       return this->get_default_topic_for_(#name "/" #type); \

esphome/components/mqtt/mqtt_cover.cpp

@@ -67,26 +67,17 @@ void MQTTCoverComponent::dump_config() {
   auto traits = this->cover_->get_traits();
   bool has_command_topic = traits.get_supports_position() || !traits.get_supports_tilt();
   LOG_MQTT_COMPONENT(true, has_command_topic);
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-#ifdef USE_MQTT_COVER_JSON
-  if (this->use_json_format_) {
-    ESP_LOGCONFIG(TAG, "  JSON State Payload: YES");
-  } else {
-#endif
-    if (traits.get_supports_position()) {
-      ESP_LOGCONFIG(TAG, "  Position State Topic: '%s'", this->get_position_state_topic_to(topic_buf).c_str());
-    }
-    if (traits.get_supports_tilt()) {
-      ESP_LOGCONFIG(TAG, "  Tilt State Topic: '%s'", this->get_tilt_state_topic_to(topic_buf).c_str());
-    }
-#ifdef USE_MQTT_COVER_JSON
-  }
-#endif
   if (traits.get_supports_position()) {
-    ESP_LOGCONFIG(TAG, "  Position Command Topic: '%s'", this->get_position_command_topic_to(topic_buf).c_str());
+    ESP_LOGCONFIG(TAG,
+                  "  Position State Topic: '%s'\n"
+                  "  Position Command Topic: '%s'",
+                  this->get_position_state_topic().c_str(), this->get_position_command_topic().c_str());
   }
   if (traits.get_supports_tilt()) {
-    ESP_LOGCONFIG(TAG, "  Tilt Command Topic: '%s'", this->get_tilt_command_topic_to(topic_buf).c_str());
+    ESP_LOGCONFIG(TAG,
+                  "  Tilt State Topic: '%s'\n"
+                  "  Tilt Command Topic: '%s'",
+                  this->get_tilt_state_topic().c_str(), this->get_tilt_command_topic().c_str());
   }
 }
 void MQTTCoverComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
@@ -101,33 +92,13 @@ void MQTTCoverComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConf
   if (traits.get_is_assumed_state()) {
     root[MQTT_OPTIMISTIC] = true;
   }
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-#ifdef USE_MQTT_COVER_JSON
-  if (this->use_json_format_) {
-    // JSON mode: all state published to state_topic as JSON, use templates to extract
-    root[MQTT_VALUE_TEMPLATE] = ESPHOME_F("{{ value_json.state }}");
-    if (traits.get_supports_position()) {
-      root[MQTT_POSITION_TOPIC] = this->get_state_topic_to_(topic_buf);
-      root[MQTT_POSITION_TEMPLATE] = ESPHOME_F("{{ value_json.position }}");
-      root[MQTT_SET_POSITION_TOPIC] = this->get_position_command_topic_to(topic_buf);
-    }
-    if (traits.get_supports_tilt()) {
-      root[MQTT_TILT_STATUS_TOPIC] = this->get_state_topic_to_(topic_buf);
-      root[MQTT_TILT_STATUS_TEMPLATE] = ESPHOME_F("{{ value_json.tilt }}");
-      root[MQTT_TILT_COMMAND_TOPIC] = this->get_tilt_command_topic_to(topic_buf);
-    }
-  } else
-#endif
-  {
-    // Standard mode: separate topics for position and tilt
-    if (traits.get_supports_position()) {
-      root[MQTT_POSITION_TOPIC] = this->get_position_state_topic_to(topic_buf);
-      root[MQTT_SET_POSITION_TOPIC] = this->get_position_command_topic_to(topic_buf);
-    }
-    if (traits.get_supports_tilt()) {
-      root[MQTT_TILT_STATUS_TOPIC] = this->get_tilt_state_topic_to(topic_buf);
-      root[MQTT_TILT_COMMAND_TOPIC] = this->get_tilt_command_topic_to(topic_buf);
-    }
+  if (traits.get_supports_position()) {
+    root[MQTT_POSITION_TOPIC] = this->get_position_state_topic();
+    root[MQTT_SET_POSITION_TOPIC] = this->get_position_command_topic();
+  }
+  if (traits.get_supports_tilt()) {
+    root[MQTT_TILT_STATUS_TOPIC] = this->get_tilt_state_topic();
+    root[MQTT_TILT_COMMAND_TOPIC] = this->get_tilt_command_topic();
   }
   if (traits.get_supports_tilt() && !traits.get_supports_position()) {
     config.command_topic = false;
@@ -140,36 +111,20 @@ const EntityBase *MQTTCoverComponent::get_entity() const { return this->cover_;
 bool MQTTCoverComponent::send_initial_state() { return this->publish_state(); }
 bool MQTTCoverComponent::publish_state() {
   auto traits = this->cover_->get_traits();
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-#ifdef USE_MQTT_COVER_JSON
-  if (this->use_json_format_) {
-    return this->publish_json(this->get_state_topic_to_(topic_buf), [this, traits](JsonObject root) {
-      // NOLINTBEGIN(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
-      root[ESPHOME_F("state")] = cover_state_to_mqtt_str(this->cover_->current_operation, this->cover_->position,
-                                                         traits.get_supports_position());
-      if (traits.get_supports_position()) {
-        root[ESPHOME_F("position")] = static_cast<int>(roundf(this->cover_->position * 100));
-      }
-      if (traits.get_supports_tilt()) {
-        root[ESPHOME_F("tilt")] = static_cast<int>(roundf(this->cover_->tilt * 100));
-      }
-      // NOLINTEND(clang-analyzer-cplusplus.NewDeleteLeaks)
-    });
-  }
-#endif
   bool success = true;
   if (traits.get_supports_position()) {
     char pos[VALUE_ACCURACY_MAX_LEN];
     size_t len = value_accuracy_to_buf(pos, roundf(this->cover_->position * 100), 0);
-    if (!this->publish(this->get_position_state_topic_to(topic_buf), pos, len))
+    if (!this->publish(this->get_position_state_topic(), pos, len))
       success = false;
   }
   if (traits.get_supports_tilt()) {
     char pos[VALUE_ACCURACY_MAX_LEN];
     size_t len = value_accuracy_to_buf(pos, roundf(this->cover_->tilt * 100), 0);
-    if (!this->publish(this->get_tilt_state_topic_to(topic_buf), pos, len))
+    if (!this->publish(this->get_tilt_state_topic(), pos, len))
       success = false;
   }
+  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   if (!this->publish(this->get_state_topic_to_(topic_buf),
                      cover_state_to_mqtt_str(this->cover_->current_operation, this->cover_->position,
                                              traits.get_supports_position())))

esphome/components/mqtt/mqtt_cover.h

@@ -27,18 +27,12 @@ class MQTTCoverComponent : public mqtt::MQTTComponent {
   bool publish_state();
 
   void dump_config() override;
-#ifdef USE_MQTT_COVER_JSON
-  void set_use_json_format(bool use_json_format) { this->use_json_format_ = use_json_format; }
-#endif
 
  protected:
   const char *component_type() const override;
   const EntityBase *get_entity() const override;
 
   cover::Cover *cover_;
-#ifdef USE_MQTT_COVER_JSON
-  bool use_json_format_{false};
-#endif
 };
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_fan.cpp

@@ -173,20 +173,19 @@ bool MQTTFanComponent::publish_state() {
   this->publish(this->get_state_topic_to_(topic_buf), state_s);
   bool failed = false;
   if (this->state_->get_traits().supports_direction()) {
-    bool success = this->publish(this->get_direction_state_topic_to(topic_buf),
-                                 fan_direction_to_mqtt_str(this->state_->direction));
+    bool success = this->publish(this->get_direction_state_topic(), fan_direction_to_mqtt_str(this->state_->direction));
     failed = failed || !success;
   }
   if (this->state_->get_traits().supports_oscillation()) {
-    bool success = this->publish(this->get_oscillation_state_topic_to(topic_buf),
-                                 fan_oscillation_to_mqtt_str(this->state_->oscillating));
+    bool success =
+        this->publish(this->get_oscillation_state_topic(), fan_oscillation_to_mqtt_str(this->state_->oscillating));
     failed = failed || !success;
   }
   auto traits = this->state_->get_traits();
   if (traits.supports_speed()) {
     char buf[12];
     size_t len = buf_append_printf(buf, sizeof(buf), 0, "%d", this->state_->speed);
-    bool success = this->publish(this->get_speed_level_state_topic_to(topic_buf), buf, len);
+    bool success = this->publish(this->get_speed_level_state_topic(), buf, len);
     failed = failed || !success;
   }
   return !failed;

esphome/components/mqtt/mqtt_valve.cpp

@@ -87,13 +87,13 @@ bool MQTTValveComponent::send_initial_state() { return this->publish_state(); }
 bool MQTTValveComponent::publish_state() {
   auto traits = this->valve_->get_traits();
   bool success = true;
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   if (traits.get_supports_position()) {
     char pos[VALUE_ACCURACY_MAX_LEN];
     size_t len = value_accuracy_to_buf(pos, roundf(this->valve_->position * 100), 0);
-    if (!this->publish(this->get_position_state_topic_to(topic_buf), pos, len))
+    if (!this->publish(this->get_position_state_topic(), pos, len))
       success = false;
   }
+  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   if (!this->publish(this->get_state_topic_to_(topic_buf),
                      valve_state_to_mqtt_str(this->valve_->current_operation, this->valve_->position,
                                              traits.get_supports_position())))

esphome/components/nextion/nextion.cpp

@@ -398,10 +398,10 @@ bool Nextion::remove_from_q_(bool report_empty) {
 
 void Nextion::process_serial_() {
   // Read all available bytes in batches to reduce UART call overhead.
-  size_t avail = this->available();
+  int avail = this->available();
   uint8_t buf[64];
   while (avail > 0) {
-    size_t to_read = std::min(avail, sizeof(buf));
+    size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
     if (!this->read_array(buf, to_read)) {
       break;
     }

esphome/components/openthread/openthread_esp.cpp

@@ -104,7 +104,7 @@ void OpenThreadComponent::ot_main() {
   esp_cli_custom_command_init();
 #endif  // CONFIG_OPENTHREAD_CLI_ESP_EXTENSION
 
-  otLinkModeConfig link_mode_config{};
+  otLinkModeConfig link_mode_config = {0};
 #if CONFIG_OPENTHREAD_FTD
   link_mode_config.mRxOnWhenIdle = true;
   link_mode_config.mDeviceType = true;

esphome/components/pipsolar/pipsolar.cpp

@@ -14,9 +14,9 @@ void Pipsolar::setup() {
 
 void Pipsolar::empty_uart_buffer_() {
   uint8_t buf[64];
-  size_t avail;
+  int avail;
   while ((avail = this->available()) > 0) {
-    if (!this->read_array(buf, std::min(avail, sizeof(buf)))) {
+    if (!this->read_array(buf, std::min(static_cast<size_t>(avail), sizeof(buf)))) {
       break;
     }
   }
@@ -97,10 +97,10 @@ void Pipsolar::loop() {
   }
 
   if (this->state_ == STATE_COMMAND || this->state_ == STATE_POLL) {
-    size_t avail = this->available();
+    int avail = this->available();
     while (avail > 0) {
       uint8_t buf[64];
-      size_t to_read = std::min(avail, sizeof(buf));
+      size_t to_read = std::min(static_cast<size_t>(avail), sizeof(buf));
       if (!this->read_array(buf, to_read)) {
         break;
       }

esphome/components/pulse_counter/pulse_counter_sensor.cpp

@@ -1,11 +1,6 @@
 #include "pulse_counter_sensor.h"
 #include "esphome/core/log.h"
 
-#ifdef HAS_PCNT
-#include <esp_clk_tree.h>
-#include <hal/pcnt_ll.h>
-#endif
-
 namespace esphome {
 namespace pulse_counter {
 
@@ -61,109 +56,103 @@ pulse_counter_t BasicPulseCounterStorage::read_raw_value() {
 
 #ifdef HAS_PCNT
 bool HwPulseCounterStorage::pulse_counter_setup(InternalGPIOPin *pin) {
+  static pcnt_unit_t next_pcnt_unit = PCNT_UNIT_0;
+  static pcnt_channel_t next_pcnt_channel = PCNT_CHANNEL_0;
   this->pin = pin;
   this->pin->setup();
-
-  pcnt_unit_config_t unit_config = {
-      .low_limit = INT16_MIN,
-      .high_limit = INT16_MAX,
-      .flags = {.accum_count = true},
-  };
-  esp_err_t error = pcnt_new_unit(&unit_config, &this->pcnt_unit);
-  if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Creating PCNT unit failed: %s", esp_err_to_name(error));
-    return false;
+  this->pcnt_unit = next_pcnt_unit;
+  this->pcnt_channel = next_pcnt_channel;
+  next_pcnt_unit = pcnt_unit_t(int(next_pcnt_unit) + 1);
+  if (int(next_pcnt_unit) >= PCNT_UNIT_0 + PCNT_UNIT_MAX) {
+    next_pcnt_unit = PCNT_UNIT_0;
+    next_pcnt_channel = pcnt_channel_t(int(next_pcnt_channel) + 1);
   }
 
-  pcnt_chan_config_t chan_config = {
-      .edge_gpio_num = this->pin->get_pin(),
-      .level_gpio_num = -1,
-  };
-  error = pcnt_new_channel(this->pcnt_unit, &chan_config, &this->pcnt_channel);
-  if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Creating PCNT channel failed: %s", esp_err_to_name(error));
-    return false;
-  }
+  ESP_LOGCONFIG(TAG,
+                "    PCNT Unit Number: %u\n"
+                "    PCNT Channel Number: %u",
+                this->pcnt_unit, this->pcnt_channel);
 
-  pcnt_channel_edge_action_t rising = PCNT_CHANNEL_EDGE_ACTION_HOLD;
-  pcnt_channel_edge_action_t falling = PCNT_CHANNEL_EDGE_ACTION_HOLD;
+  pcnt_count_mode_t rising = PCNT_COUNT_DIS, falling = PCNT_COUNT_DIS;
   switch (this->rising_edge_mode) {
     case PULSE_COUNTER_DISABLE:
-      rising = PCNT_CHANNEL_EDGE_ACTION_HOLD;
+      rising = PCNT_COUNT_DIS;
       break;
     case PULSE_COUNTER_INCREMENT:
-      rising = PCNT_CHANNEL_EDGE_ACTION_INCREASE;
+      rising = PCNT_COUNT_INC;
       break;
     case PULSE_COUNTER_DECREMENT:
-      rising = PCNT_CHANNEL_EDGE_ACTION_DECREASE;
+      rising = PCNT_COUNT_DEC;
       break;
   }
   switch (this->falling_edge_mode) {
     case PULSE_COUNTER_DISABLE:
-      falling = PCNT_CHANNEL_EDGE_ACTION_HOLD;
+      falling = PCNT_COUNT_DIS;
       break;
     case PULSE_COUNTER_INCREMENT:
-      falling = PCNT_CHANNEL_EDGE_ACTION_INCREASE;
+      falling = PCNT_COUNT_INC;
       break;
     case PULSE_COUNTER_DECREMENT:
-      falling = PCNT_CHANNEL_EDGE_ACTION_DECREASE;
+      falling = PCNT_COUNT_DEC;
       break;
   }
 
-  error = pcnt_channel_set_edge_action(this->pcnt_channel, rising, falling);
+  pcnt_config_t pcnt_config = {
+      .pulse_gpio_num = this->pin->get_pin(),
+      .ctrl_gpio_num = PCNT_PIN_NOT_USED,
+      .lctrl_mode = PCNT_MODE_KEEP,
+      .hctrl_mode = PCNT_MODE_KEEP,
+      .pos_mode = rising,
+      .neg_mode = falling,
+      .counter_h_lim = 0,
+      .counter_l_lim = 0,
+      .unit = this->pcnt_unit,
+      .channel = this->pcnt_channel,
+  };
+  esp_err_t error = pcnt_unit_config(&pcnt_config);
   if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Setting PCNT edge action failed: %s", esp_err_to_name(error));
+    ESP_LOGE(TAG, "Configuring Pulse Counter failed: %s", esp_err_to_name(error));
     return false;
   }
 
   if (this->filter_us != 0) {
-    uint32_t apb_freq;
-    esp_clk_tree_src_get_freq_hz(SOC_MOD_CLK_APB, ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED, &apb_freq);
-    uint32_t max_glitch_ns = PCNT_LL_MAX_GLITCH_WIDTH * 1000000u / apb_freq;
-    pcnt_glitch_filter_config_t filter_config = {
-        .max_glitch_ns = std::min(this->filter_us * 1000u, max_glitch_ns),
-    };
-    error = pcnt_unit_set_glitch_filter(this->pcnt_unit, &filter_config);
+    uint16_t filter_val = std::min(static_cast<unsigned int>(this->filter_us * 80u), 1023u);
+    ESP_LOGCONFIG(TAG, "    Filter Value: %" PRIu32 "us (val=%u)", this->filter_us, filter_val);
+    error = pcnt_set_filter_value(this->pcnt_unit, filter_val);
     if (error != ESP_OK) {
-      ESP_LOGE(TAG, "Setting PCNT glitch filter failed: %s", esp_err_to_name(error));
+      ESP_LOGE(TAG, "Setting filter value failed: %s", esp_err_to_name(error));
+      return false;
+    }
+    error = pcnt_filter_enable(this->pcnt_unit);
+    if (error != ESP_OK) {
+      ESP_LOGE(TAG, "Enabling filter failed: %s", esp_err_to_name(error));
       return false;
     }
   }
 
-  error = pcnt_unit_add_watch_point(this->pcnt_unit, INT16_MIN);
+  error = pcnt_counter_pause(this->pcnt_unit);
   if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Adding PCNT low limit watch point failed: %s", esp_err_to_name(error));
+    ESP_LOGE(TAG, "Pausing pulse counter failed: %s", esp_err_to_name(error));
     return false;
   }
-  error = pcnt_unit_add_watch_point(this->pcnt_unit, INT16_MAX);
+  error = pcnt_counter_clear(this->pcnt_unit);
   if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Adding PCNT high limit watch point failed: %s", esp_err_to_name(error));
+    ESP_LOGE(TAG, "Clearing pulse counter failed: %s", esp_err_to_name(error));
     return false;
   }
-
-  error = pcnt_unit_enable(this->pcnt_unit);
+  error = pcnt_counter_resume(this->pcnt_unit);
   if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Enabling PCNT unit failed: %s", esp_err_to_name(error));
-    return false;
-  }
-  error = pcnt_unit_clear_count(this->pcnt_unit);
-  if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Clearing PCNT unit failed: %s", esp_err_to_name(error));
-    return false;
-  }
-  error = pcnt_unit_start(this->pcnt_unit);
-  if (error != ESP_OK) {
-    ESP_LOGE(TAG, "Starting PCNT unit failed: %s", esp_err_to_name(error));
+    ESP_LOGE(TAG, "Resuming pulse counter failed: %s", esp_err_to_name(error));
     return false;
   }
   return true;
 }
 
 pulse_counter_t HwPulseCounterStorage::read_raw_value() {
-  int count;
-  pcnt_unit_get_count(this->pcnt_unit, &count);
-  pulse_counter_t ret = count - this->last_value;
-  this->last_value = count;
+  pulse_counter_t counter;
+  pcnt_get_counter_value(this->pcnt_unit, &counter);
+  pulse_counter_t ret = counter - this->last_value;
+  this->last_value = counter;
   return ret;
 }
 #endif  // HAS_PCNT