fix

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.clang-tidy.hash

@@ -1 +1 @@
-4268ab0b5150f79ab1c317e8f3834c8bb0b4c8122da4f6b1fd67c49d0f2098c9
+5ac05ac603766d76b86a05cdf6a43febcaae807fe9e2406d812c47d4b5fed91d

esphome/__main__.py

@@ -780,13 +780,6 @@ def command_vscode(args: ArgsProtocol) -> int | None:
 
 
 def command_compile(args: ArgsProtocol, config: ConfigType) -> int | None:
-    # Set memory analysis options in config
-    if args.analyze_memory:
-        config.setdefault(CONF_ESPHOME, {})["analyze_memory"] = True
-
-    if args.memory_report:
-        config.setdefault(CONF_ESPHOME, {})["memory_report_file"] = args.memory_report
-
     exit_code = write_cpp(config)
     if exit_code != 0:
         return exit_code
@@ -1266,17 +1259,6 @@ def parse_args(argv):
         help="Only generate source code, do not compile.",
         action="store_true",
     )
-    parser_compile.add_argument(
-        "--analyze-memory",
-        help="Analyze and display memory usage by component after compilation.",
-        action="store_true",
-    )
-    parser_compile.add_argument(
-        "--memory-report",
-        help="Save memory analysis report to a file (supports .json or .txt).",
-        type=str,
-        metavar="FILE",
-    )
 
     parser_upload = subparsers.add_parser(
         "upload",

esphome/analyze_memory/cli.py

@@ -1,7 +1,6 @@
 """CLI interface for memory analysis with report generation."""
 
 from collections import defaultdict
-import json
 import sys
 
 from . import (
@@ -298,28 +297,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
 
         return "\n".join(lines)
 
-    def to_json(self) -> str:
-        """Export analysis results as JSON."""
-        data = {
-            "components": {
-                name: {
-                    "text": mem.text_size,
-                    "rodata": mem.rodata_size,
-                    "data": mem.data_size,
-                    "bss": mem.bss_size,
-                    "flash_total": mem.flash_total,
-                    "ram_total": mem.ram_total,
-                    "symbol_count": mem.symbol_count,
-                }
-                for name, mem in self.components.items()
-            },
-            "totals": {
-                "flash": sum(c.flash_total for c in self.components.values()),
-                "ram": sum(c.ram_total for c in self.components.values()),
-            },
-        }
-        return json.dumps(data, indent=2)
-
     def dump_uncategorized_symbols(self, output_file: str | None = None) -> None:
         """Dump uncategorized symbols for analysis."""
         # Sort by size descending

esphome/components/api/api.proto

@@ -102,7 +102,7 @@ message HelloRequest {
   // For example "Home Assistant"
   // Not strictly necessary to send but nice for debugging
   // purposes.
-  string client_info = 1;
+  string client_info = 1 [(pointer_to_buffer) = true];
   uint32 api_version_major = 2;
   uint32 api_version_minor = 3;
 }
@@ -139,7 +139,7 @@ message AuthenticationRequest {
   option (ifdef) = "USE_API_PASSWORD";
 
   // The password to log in with
-  string password = 1;
+  string password = 1 [(pointer_to_buffer) = true];
 }
 
 // Confirmation of successful connection. After this the connection is available for all traffic.
@@ -477,7 +477,7 @@ message FanCommandRequest {
   bool has_speed_level = 10;
   int32 speed_level = 11;
   bool has_preset_mode = 12;
-  string preset_mode = 13;
+  string preset_mode = 13 [(pointer_to_buffer) = true];
   uint32 device_id = 14 [(field_ifdef) = "USE_DEVICES"];
 }
 
@@ -579,7 +579,7 @@ message LightCommandRequest {
   bool has_flash_length = 16;
   uint32 flash_length = 17;
   bool has_effect = 18;
-  string effect = 19;
+  string effect = 19 [(pointer_to_buffer) = true];
   uint32 device_id = 28 [(field_ifdef) = "USE_DEVICES"];
 }
 
@@ -747,7 +747,7 @@ message NoiseEncryptionSetKeyRequest {
   option (source) = SOURCE_CLIENT;
   option (ifdef) = "USE_API_NOISE";
 
-  bytes key = 1;
+  bytes key = 1 [(pointer_to_buffer) = true];
 }
 
 message NoiseEncryptionSetKeyResponse {
@@ -796,7 +796,7 @@ message HomeassistantActionResponse {
   uint32 call_id = 1; // Matches the call_id from HomeassistantActionRequest
   bool success = 2; // Whether the service call succeeded
   string error_message = 3; // Error message if success = false
-  bytes response_data = 4 [(field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
+  bytes response_data = 4 [(pointer_to_buffer) = true, (field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
 }
 
 // ==================== IMPORT HOME ASSISTANT STATES ====================
@@ -824,9 +824,9 @@ message HomeAssistantStateResponse {
   option (no_delay) = true;
   option (ifdef) = "USE_API_HOMEASSISTANT_STATES";
 
-  string entity_id = 1;
-  string state = 2;
-  string attribute = 3;
+  string entity_id = 1 [(pointer_to_buffer) = true];
+  string state = 2 [(pointer_to_buffer) = true];
+  string attribute = 3 [(pointer_to_buffer) = true];
 }
 
 // ==================== IMPORT TIME ====================
@@ -841,7 +841,7 @@ message GetTimeResponse {
   option (no_delay) = true;
 
   fixed32 epoch_seconds = 1;
-  string timezone = 2;
+  string timezone = 2 [(pointer_to_buffer) = true];
 }
 
 // ==================== USER-DEFINES SERVICES ====================
@@ -1091,11 +1091,11 @@ message ClimateCommandRequest {
   bool has_swing_mode = 14;
   ClimateSwingMode swing_mode = 15;
   bool has_custom_fan_mode = 16;
-  string custom_fan_mode = 17;
+  string custom_fan_mode = 17 [(pointer_to_buffer) = true];
   bool has_preset = 18;
   ClimatePreset preset = 19;
   bool has_custom_preset = 20;
-  string custom_preset = 21;
+  string custom_preset = 21 [(pointer_to_buffer) = true];
   bool has_target_humidity = 22;
   float target_humidity = 23;
   uint32 device_id = 24 [(field_ifdef) = "USE_DEVICES"];
@@ -1274,7 +1274,7 @@ message SelectCommandRequest {
   option (base_class) = "CommandProtoMessage";
 
   fixed32 key = 1;
-  string state = 2;
+  string state = 2 [(pointer_to_buffer) = true];
   uint32 device_id = 3 [(field_ifdef) = "USE_DEVICES"];
 }
 
@@ -1292,7 +1292,7 @@ message ListEntitiesSirenResponse {
 
   string icon = 5 [(field_ifdef) = "USE_ENTITY_ICON"];
   bool disabled_by_default = 6;
-  repeated string tones = 7 [(container_pointer_no_template) = "FixedVector<const char *>"];
+  repeated string tones = 7;
   bool supports_duration = 8;
   bool supports_volume = 9;
   EntityCategory entity_category = 10;
@@ -1692,7 +1692,7 @@ message BluetoothGATTWriteRequest {
   uint32 handle = 2;
   bool response = 3;
 
-  bytes data = 4;
+  bytes data = 4 [(pointer_to_buffer) = true];
 }
 
 message BluetoothGATTReadDescriptorRequest {
@@ -1712,7 +1712,7 @@ message BluetoothGATTWriteDescriptorRequest {
   uint64 address = 1;
   uint32 handle = 2;
 
-  bytes data = 3;
+  bytes data = 3 [(pointer_to_buffer) = true];
 }
 
 message BluetoothGATTNotifyRequest {
@@ -1937,7 +1937,7 @@ message VoiceAssistantAudio {
   option (source) = SOURCE_BOTH;
   option (ifdef) = "USE_VOICE_ASSISTANT";
 
-  bytes data = 1 [(pointer_to_buffer) = true];
+  bytes data = 1;
   bool end = 2;
 }
 

esphome/components/api/api_connection.cpp

@@ -131,10 +131,8 @@ void APIConnection::start() {
     this->fatal_error_with_log_(LOG_STR("Helper init failed"), err);
     return;
   }
-  // Initialize client name with peername (IP address) until Hello message provides actual name
-  char peername[socket::PEERNAME_MAX_LEN];
-  this->helper_->getpeername_to(peername);
-  this->client_info_.name = peername;
+  this->client_info_.peername = helper_->getpeername();
+  this->client_info_.name = this->client_info_.peername;
 }
 
 APIConnection::~APIConnection() {
@@ -254,7 +252,8 @@ void APIConnection::loop() {
     // Disconnect if not responded within 2.5*keepalive
     if (now - this->last_traffic_ > KEEPALIVE_DISCONNECT_TIMEOUT) {
       on_fatal_error();
-      this->log_client_(ESPHOME_LOG_LEVEL_WARN, LOG_STR("is unresponsive; disconnecting"));
+      ESP_LOGW(TAG, "%s (%s) is unresponsive; disconnecting", this->client_info_.name.c_str(),
+               this->client_info_.peername.c_str());
     }
   } else if (now - this->last_traffic_ > KEEPALIVE_TIMEOUT_MS && !this->flags_.remove) {
     // Only send ping if we're not disconnecting
@@ -288,7 +287,7 @@ bool APIConnection::send_disconnect_response(const DisconnectRequest &msg) {
   // remote initiated disconnect_client
   // don't close yet, we still need to send the disconnect response
   // close will happen on next loop
-  this->log_client_(ESPHOME_LOG_LEVEL_DEBUG, LOG_STR("disconnected"));
+  ESP_LOGD(TAG, "%s (%s) disconnected", this->client_info_.name.c_str(), this->client_info_.peername.c_str());
   this->flags_.next_close = true;
   DisconnectResponse resp;
   return this->send_message(resp, DisconnectResponse::MESSAGE_TYPE);
@@ -474,7 +473,7 @@ void APIConnection::fan_command(const FanCommandRequest &msg) {
   if (msg.has_direction)
     call.set_direction(static_cast<fan::FanDirection>(msg.direction));
   if (msg.has_preset_mode)
-    call.set_preset_mode(msg.preset_mode.c_str(), msg.preset_mode.size());
+    call.set_preset_mode(reinterpret_cast<const char *>(msg.preset_mode), msg.preset_mode_len);
   call.perform();
 }
 #endif
@@ -560,7 +559,7 @@ void APIConnection::light_command(const LightCommandRequest &msg) {
   if (msg.has_flash_length)
     call.set_flash_length(msg.flash_length);
   if (msg.has_effect)
-    call.set_effect(msg.effect.c_str(), msg.effect.size());
+    call.set_effect(reinterpret_cast<const char *>(msg.effect), msg.effect_len);
   call.perform();
 }
 #endif
@@ -739,11 +738,11 @@ void APIConnection::climate_command(const ClimateCommandRequest &msg) {
   if (msg.has_fan_mode)
     call.set_fan_mode(static_cast<climate::ClimateFanMode>(msg.fan_mode));
   if (msg.has_custom_fan_mode)
-    call.set_fan_mode(msg.custom_fan_mode.c_str(), msg.custom_fan_mode.size());
+    call.set_fan_mode(reinterpret_cast<const char *>(msg.custom_fan_mode), msg.custom_fan_mode_len);
   if (msg.has_preset)
     call.set_preset(static_cast<climate::ClimatePreset>(msg.preset));
   if (msg.has_custom_preset)
-    call.set_preset(msg.custom_preset.c_str(), msg.custom_preset.size());
+    call.set_preset(reinterpret_cast<const char *>(msg.custom_preset), msg.custom_preset_len);
   if (msg.has_swing_mode)
     call.set_swing_mode(static_cast<climate::ClimateSwingMode>(msg.swing_mode));
   call.perform();
@@ -932,7 +931,7 @@ uint16_t APIConnection::try_send_select_info(EntityBase *entity, APIConnection *
 }
 void APIConnection::select_command(const SelectCommandRequest &msg) {
   ENTITY_COMMAND_MAKE_CALL(select::Select, select, select)
-  call.set_option(msg.state.c_str(), msg.state.size());
+  call.set_option(reinterpret_cast<const char *>(msg.state), msg.state_len);
   call.perform();
 }
 #endif
@@ -1154,8 +1153,9 @@ void APIConnection::on_get_time_response(const GetTimeResponse &value) {
   if (homeassistant::global_homeassistant_time != nullptr) {
     homeassistant::global_homeassistant_time->set_epoch_time(value.epoch_seconds);
 #ifdef USE_TIME_TIMEZONE
-    if (!value.timezone.empty()) {
-      homeassistant::global_homeassistant_time->set_timezone(value.timezone.c_str(), value.timezone.size());
+    if (value.timezone_len > 0) {
+      homeassistant::global_homeassistant_time->set_timezone(reinterpret_cast<const char *>(value.timezone),
+                                                             value.timezone_len);
     }
 #endif
   }
@@ -1505,10 +1505,9 @@ void APIConnection::complete_authentication_() {
   }
 
   this->flags_.connection_state = static_cast<uint8_t>(ConnectionState::AUTHENTICATED);
-  this->log_client_(ESPHOME_LOG_LEVEL_DEBUG, LOG_STR("connected"));
+  ESP_LOGD(TAG, "%s (%s) connected", this->client_info_.name.c_str(), this->client_info_.peername.c_str());
 #ifdef USE_API_CLIENT_CONNECTED_TRIGGER
-  // Trigger expects std::string, get fresh peername from socket
-  this->parent_->get_client_connected_trigger()->trigger(this->client_info_.name, this->helper_->getpeername());
+  this->parent_->get_client_connected_trigger()->trigger(this->client_info_.name, this->client_info_.peername);
 #endif
 #ifdef USE_HOMEASSISTANT_TIME
   if (homeassistant::global_homeassistant_time != nullptr) {
@@ -1523,13 +1522,12 @@ void APIConnection::complete_authentication_() {
 }
 
 bool APIConnection::send_hello_response(const HelloRequest &msg) {
-  this->client_info_.name.assign(msg.client_info.c_str(), msg.client_info.size());
+  this->client_info_.name.assign(reinterpret_cast<const char *>(msg.client_info), msg.client_info_len);
+  this->client_info_.peername = this->helper_->getpeername();
   this->client_api_version_major_ = msg.api_version_major;
   this->client_api_version_minor_ = msg.api_version_minor;
-  char peername[socket::PEERNAME_MAX_LEN];
-  this->helper_->getpeername_to(peername);
   ESP_LOGV(TAG, "Hello from client: '%s' | %s | API Version %" PRIu32 ".%" PRIu32, this->client_info_.name.c_str(),
-           peername, this->client_api_version_major_, this->client_api_version_minor_);
+           this->client_info_.peername.c_str(), this->client_api_version_major_, this->client_api_version_minor_);
 
   HelloResponse resp;
   resp.api_version_major = 1;
@@ -1552,7 +1550,7 @@ bool APIConnection::send_hello_response(const HelloRequest &msg) {
 bool APIConnection::send_authenticate_response(const AuthenticationRequest &msg) {
   AuthenticationResponse resp;
   // bool invalid_password = 1;
-  resp.invalid_password = !this->parent_->check_password(msg.password.byte(), msg.password.size());
+  resp.invalid_password = !this->parent_->check_password(msg.password, msg.password_len);
   if (!resp.invalid_password) {
     this->complete_authentication_();
   }
@@ -1695,28 +1693,27 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
 #ifdef USE_API_HOMEASSISTANT_STATES
 void APIConnection::on_home_assistant_state_response(const HomeAssistantStateResponse &msg) {
   // Skip if entity_id is empty (invalid message)
-  if (msg.entity_id.empty()) {
+  if (msg.entity_id_len == 0) {
     return;
   }
 
   for (auto &it : this->parent_->get_state_subs()) {
     // Compare entity_id: check length matches and content matches
     size_t entity_id_len = strlen(it.entity_id);
-    if (entity_id_len != msg.entity_id.size() ||
-        memcmp(it.entity_id, msg.entity_id.c_str(), msg.entity_id.size()) != 0) {
+    if (entity_id_len != msg.entity_id_len || memcmp(it.entity_id, msg.entity_id, msg.entity_id_len) != 0) {
       continue;
     }
 
     // Compare attribute: either both have matching attribute, or both have none
     size_t sub_attr_len = it.attribute != nullptr ? strlen(it.attribute) : 0;
-    if (sub_attr_len != msg.attribute.size() ||
-        (sub_attr_len > 0 && memcmp(it.attribute, msg.attribute.c_str(), sub_attr_len) != 0)) {
+    if (sub_attr_len != msg.attribute_len ||
+        (sub_attr_len > 0 && memcmp(it.attribute, msg.attribute, sub_attr_len) != 0)) {
       continue;
     }
 
     // Create temporary string for callback (callback takes const std::string &)
-    // Handle empty state
-    std::string state(!msg.state.empty() ? msg.state.c_str() : "", msg.state.size());
+    // Handle empty state (nullptr with len=0)
+    std::string state(msg.state_len > 0 ? reinterpret_cast<const char *>(msg.state) : "", msg.state_len);
     it.callback(state);
   }
 }
@@ -1752,20 +1749,20 @@ void APIConnection::execute_service(const ExecuteServiceRequest &msg) {
   // the action list. This ensures async actions (delays, waits) complete first.
 }
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
-void APIConnection::send_execute_service_response(uint32_t call_id, bool success, StringRef error_message) {
+void APIConnection::send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message) {
   ExecuteServiceResponse resp;
   resp.call_id = call_id;
   resp.success = success;
-  resp.set_error_message(error_message);
+  resp.set_error_message(StringRef(error_message));
   this->send_message(resp, ExecuteServiceResponse::MESSAGE_TYPE);
 }
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
-void APIConnection::send_execute_service_response(uint32_t call_id, bool success, StringRef error_message,
+void APIConnection::send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message,
                                                   const uint8_t *response_data, size_t response_data_len) {
   ExecuteServiceResponse resp;
   resp.call_id = call_id;
   resp.success = success;
-  resp.set_error_message(error_message);
+  resp.set_error_message(StringRef(error_message));
   resp.response_data = response_data;
   resp.response_data_len = response_data_len;
   this->send_message(resp, ExecuteServiceResponse::MESSAGE_TYPE);
@@ -1851,12 +1848,12 @@ bool APIConnection::send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) {
 #ifdef USE_API_PASSWORD
 void APIConnection::on_unauthenticated_access() {
   this->on_fatal_error();
-  this->log_client_(ESPHOME_LOG_LEVEL_DEBUG, LOG_STR("no authentication"));
+  ESP_LOGD(TAG, "%s (%s) no authentication", this->client_info_.name.c_str(), this->client_info_.peername.c_str());
 }
 #endif
 void APIConnection::on_no_setup_connection() {
   this->on_fatal_error();
-  this->log_client_(ESPHOME_LOG_LEVEL_DEBUG, LOG_STR("no connection setup"));
+  ESP_LOGD(TAG, "%s (%s) no connection setup", this->client_info_.name.c_str(), this->client_info_.peername.c_str());
 }
 void APIConnection::on_fatal_error() {
   this->helper_->close();
@@ -2104,18 +2101,9 @@ void APIConnection::process_state_subscriptions_() {
 }
 #endif  // USE_API_HOMEASSISTANT_STATES
 
-void APIConnection::log_client_(int level, const LogString *message) {
-  char peername[socket::PEERNAME_MAX_LEN];
-  this->helper_->getpeername_to(peername);
-  esp_log_printf_(level, TAG, __LINE__, ESPHOME_LOG_FORMAT("%s (%s): %s"), this->client_info_.name.c_str(), peername,
-                  LOG_STR_ARG(message));
-}
-
 void APIConnection::log_warning_(const LogString *message, APIError err) {
-  char peername[socket::PEERNAME_MAX_LEN];
-  this->helper_->getpeername_to(peername);
-  ESP_LOGW(TAG, "%s (%s): %s %s errno=%d", this->client_info_.name.c_str(), peername, LOG_STR_ARG(message),
-           LOG_STR_ARG(api_error_to_logstr(err)), errno);
+  ESP_LOGW(TAG, "%s (%s): %s %s errno=%d", this->client_info_.name.c_str(), this->client_info_.peername.c_str(),
+           LOG_STR_ARG(message), LOG_STR_ARG(api_error_to_logstr(err)), errno);
 }
 
 }  // namespace esphome::api

esphome/components/api/api_connection.h

@@ -17,9 +17,8 @@ namespace esphome::api {
 
 // Client information structure
 struct ClientInfo {
-  std::string name;  // Client name from Hello message
-  // Note: peername (IP address) is not stored here to save memory.
-  // Use helper_->getpeername_to() or helper_->getpeername() when needed.
+  std::string name;      // Client name from Hello message
+  std::string peername;  // IP:port from socket
 };
 
 // Keepalive timeout in milliseconds
@@ -234,9 +233,9 @@ class APIConnection final : public APIServerConnection {
 #ifdef USE_API_USER_DEFINED_ACTIONS
   void execute_service(const ExecuteServiceRequest &msg) override;
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
-  void send_execute_service_response(uint32_t call_id, bool success, StringRef error_message);
+  void send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message);
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
-  void send_execute_service_response(uint32_t call_id, bool success, StringRef error_message,
+  void send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message,
                                      const uint8_t *response_data, size_t response_data_len);
 #endif  // USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
 #endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
@@ -291,12 +290,7 @@ class APIConnection final : public APIServerConnection {
   bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) override;
 
   const std::string &get_name() const { return this->client_info_.name; }
-  /// Get peer name (IP address) into a stack buffer - avoids heap allocation
-  size_t get_peername_to(std::span<char, socket::PEERNAME_MAX_LEN> buf) const {
-    return this->helper_->getpeername_to(buf);
-  }
-  /// Get peer name as std::string - use sparingly, allocates on heap
-  std::string get_peername() const { return this->helper_->getpeername(); }
+  const std::string &get_peername() const { return this->client_info_.peername; }
 
  protected:
   // Helper function to handle authentication completion
@@ -758,8 +752,6 @@ class APIConnection final : public APIServerConnection {
     return this->schedule_batch_();
   }
 
-  // Helper function to log client messages with name and peername
-  void log_client_(int level, const LogString *message);
   // Helper function to log API errors with errno
   void log_warning_(const LogString *message, APIError err);
   // Helper to handle fatal errors with logging

esphome/components/api/api_frame_helper.cpp

@@ -13,16 +13,8 @@ namespace esphome::api {
 
 static const char *const TAG = "api.frame_helper";
 
-#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
 #define HELPER_LOG(msg, ...) \
-  do { \
-    char peername__[socket::PEERNAME_MAX_LEN]; \
-    this->socket_->getpeername_to(peername__); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_info_->name.c_str(), peername__, ##__VA_ARGS__); \
-  } while (0)
-#else
-#define HELPER_LOG(msg, ...) ((void) 0)
-#endif
+  ESP_LOGVV(TAG, "%s (%s): " msg, this->client_info_->name.c_str(), this->client_info_->peername.c_str(), ##__VA_ARGS__)
 
 #ifdef HELPER_LOG_PACKETS
 #define LOG_PACKET_RECEIVED(buffer) ESP_LOGVV(TAG, "Received frame: %s", format_hex_pretty(buffer).c_str())

esphome/components/api/api_frame_helper.h

@@ -91,7 +91,6 @@ class APIFrameHelper {
   bool can_write_without_blocking() { return this->state_ == State::DATA && this->tx_buf_count_ == 0; }
   std::string getpeername() { return socket_->getpeername(); }
   int getpeername(struct sockaddr *addr, socklen_t *addrlen) { return socket_->getpeername(addr, addrlen); }
-  size_t getpeername_to(std::span<char, socket::PEERNAME_MAX_LEN> buf) { return socket_->getpeername_to(buf); }
   APIError close() {
     state_ = State::CLOSED;
     int err = this->socket_->close();

esphome/components/api/api_frame_helper_noise.cpp

@@ -24,16 +24,8 @@ static const char *const PROLOGUE_INIT = "NoiseAPIInit";
 #endif
 static constexpr size_t PROLOGUE_INIT_LEN = 12;  // strlen("NoiseAPIInit")
 
-#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
 #define HELPER_LOG(msg, ...) \
-  do { \
-    char peername__[socket::PEERNAME_MAX_LEN]; \
-    this->socket_->getpeername_to(peername__); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_info_->name.c_str(), peername__, ##__VA_ARGS__); \
-  } while (0)
-#else
-#define HELPER_LOG(msg, ...) ((void) 0)
-#endif
+  ESP_LOGVV(TAG, "%s (%s): " msg, this->client_info_->name.c_str(), this->client_info_->peername.c_str(), ##__VA_ARGS__)
 
 #ifdef HELPER_LOG_PACKETS
 #define LOG_PACKET_RECEIVED(buffer) ESP_LOGVV(TAG, "Received frame: %s", format_hex_pretty(buffer).c_str())

esphome/components/api/api_frame_helper_plaintext.cpp

@@ -18,16 +18,8 @@ namespace esphome::api {
 
 static const char *const TAG = "api.plaintext";
 
-#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
 #define HELPER_LOG(msg, ...) \
-  do { \
-    char peername__[socket::PEERNAME_MAX_LEN]; \
-    this->socket_->getpeername_to(peername__); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_info_->name.c_str(), peername__, ##__VA_ARGS__); \
-  } while (0)
-#else
-#define HELPER_LOG(msg, ...) ((void) 0)
-#endif
+  ESP_LOGVV(TAG, "%s (%s): " msg, this->client_info_->name.c_str(), this->client_info_->peername.c_str(), ##__VA_ARGS__)
 
 #ifdef HELPER_LOG_PACKETS
 #define LOG_PACKET_RECEIVED(buffer) ESP_LOGVV(TAG, "Received frame: %s", format_hex_pretty(buffer).c_str())

esphome/components/api/api_pb2.cpp

@@ -23,7 +23,9 @@ bool HelloRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 bool HelloRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 1: {
-      this->client_info = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->client_info = value.data();
+      this->client_info_len = value.size();
       break;
     }
     default:
@@ -47,7 +49,9 @@ void HelloResponse::calculate_size(ProtoSize &size) const {
 bool AuthenticationRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 1: {
-      this->password = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->password = value.data();
+      this->password_len = value.size();
       break;
     }
     default:
@@ -444,7 +448,9 @@ bool FanCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 bool FanCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 13: {
-      this->preset_mode = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->preset_mode = value.data();
+      this->preset_mode_len = value.size();
       break;
     }
     default:
@@ -609,7 +615,9 @@ bool LightCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 bool LightCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 19: {
-      this->effect = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->effect = value.data();
+      this->effect_len = value.size();
       break;
     }
     default:
@@ -851,6 +859,7 @@ void SubscribeLogsResponse::calculate_size(ProtoSize &size) const {
 bool NoiseEncryptionSetKeyRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 1: {
+      // Use raw data directly to avoid allocation
       this->key = value.data();
       this->key_len = value.size();
       break;
@@ -927,12 +936,12 @@ bool HomeassistantActionResponse::decode_varint(uint32_t field_id, ProtoVarInt v
 }
 bool HomeassistantActionResponse::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 3: {
-      this->error_message = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 3:
+      this->error_message = value.as_string();
       break;
-    }
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
     case 4: {
+      // Use raw data directly to avoid allocation
       this->response_data = value.data();
       this->response_data_len = value.size();
       break;
@@ -958,15 +967,21 @@ void SubscribeHomeAssistantStateResponse::calculate_size(ProtoSize &size) const
 bool HomeAssistantStateResponse::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 1: {
-      this->entity_id = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->entity_id = value.data();
+      this->entity_id_len = value.size();
       break;
     }
     case 2: {
-      this->state = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->state = value.data();
+      this->state_len = value.size();
       break;
     }
     case 3: {
-      this->attribute = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->attribute = value.data();
+      this->attribute_len = value.size();
       break;
     }
     default:
@@ -978,7 +993,9 @@ bool HomeAssistantStateResponse::decode_length(uint32_t field_id, ProtoLengthDel
 bool GetTimeResponse::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 2: {
-      this->timezone = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->timezone = value.data();
+      this->timezone_len = value.size();
       break;
     }
     default:
@@ -1043,10 +1060,9 @@ bool ExecuteServiceArgument::decode_varint(uint32_t field_id, ProtoVarInt value)
 }
 bool ExecuteServiceArgument::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 4: {
-      this->string_ = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 4:
+      this->string_ = value.as_string();
       break;
-    }
     case 9:
       this->string_array.push_back(value.as_string());
       break;
@@ -1137,7 +1153,7 @@ void ExecuteServiceResponse::calculate_size(ProtoSize &size) const {
   size.add_bool(1, this->success);
   size.add_length(1, this->error_message_ref_.size());
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
-  size.add_length(1, this->response_data_len);
+  size.add_length(4, this->response_data_len);
 #endif
 }
 #endif
@@ -1392,11 +1408,15 @@ bool ClimateCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value)
 bool ClimateCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 17: {
-      this->custom_fan_mode = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->custom_fan_mode = value.data();
+      this->custom_fan_mode_len = value.size();
       break;
     }
     case 21: {
-      this->custom_preset = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->custom_preset = value.data();
+      this->custom_preset_len = value.size();
       break;
     }
     default:
@@ -1682,7 +1702,9 @@ bool SelectCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 bool SelectCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 2: {
-      this->state = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+      // Use raw data directly to avoid allocation
+      this->state = value.data();
+      this->state_len = value.size();
       break;
     }
     default:
@@ -1710,8 +1732,8 @@ void ListEntitiesSirenResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(5, this->icon_ref_);
 #endif
   buffer.encode_bool(6, this->disabled_by_default);
-  for (const char *it : *this->tones) {
-    buffer.encode_string(7, it, strlen(it), true);
+  for (auto &it : this->tones) {
+    buffer.encode_string(7, it, true);
   }
   buffer.encode_bool(8, this->supports_duration);
   buffer.encode_bool(9, this->supports_volume);
@@ -1728,9 +1750,9 @@ void ListEntitiesSirenResponse::calculate_size(ProtoSize &size) const {
   size.add_length(1, this->icon_ref_.size());
 #endif
   size.add_bool(1, this->disabled_by_default);
-  if (!this->tones->empty()) {
-    for (const char *it : *this->tones) {
-      size.add_length_force(1, strlen(it));
+  if (!this->tones.empty()) {
+    for (const auto &it : this->tones) {
+      size.add_length_force(1, it.size());
     }
   }
   size.add_bool(1, this->supports_duration);
@@ -1786,10 +1808,9 @@ bool SirenCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 }
 bool SirenCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 5: {
-      this->tone = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 5:
+      this->tone = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -1878,10 +1899,9 @@ bool LockCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 }
 bool LockCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 4: {
-      this->code = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 4:
+      this->code = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2049,10 +2069,9 @@ bool MediaPlayerCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt val
 }
 bool MediaPlayerCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 7: {
-      this->media_url = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 7:
+      this->media_url = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2260,6 +2279,7 @@ bool BluetoothGATTWriteRequest::decode_varint(uint32_t field_id, ProtoVarInt val
 bool BluetoothGATTWriteRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 4: {
+      // Use raw data directly to avoid allocation
       this->data = value.data();
       this->data_len = value.size();
       break;
@@ -2298,6 +2318,7 @@ bool BluetoothGATTWriteDescriptorRequest::decode_varint(uint32_t field_id, Proto
 bool BluetoothGATTWriteDescriptorRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 3: {
+      // Use raw data directly to avoid allocation
       this->data = value.data();
       this->data_len = value.size();
       break;
@@ -2481,14 +2502,12 @@ bool VoiceAssistantResponse::decode_varint(uint32_t field_id, ProtoVarInt value)
 }
 bool VoiceAssistantEventData::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 1: {
-      this->name = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 1:
+      this->name = value.as_string();
       break;
-    }
-    case 2: {
-      this->value = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 2:
+      this->value = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2527,22 +2546,20 @@ bool VoiceAssistantAudio::decode_varint(uint32_t field_id, ProtoVarInt value) {
 }
 bool VoiceAssistantAudio::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 1: {
-      this->data = value.data();
-      this->data_len = value.size();
+    case 1:
+      this->data = value.as_string();
       break;
-    }
     default:
       return false;
   }
   return true;
 }
 void VoiceAssistantAudio::encode(ProtoWriteBuffer buffer) const {
-  buffer.encode_bytes(1, this->data, this->data_len);
+  buffer.encode_bytes(1, this->data_ptr_, this->data_len_);
   buffer.encode_bool(2, this->end);
 }
 void VoiceAssistantAudio::calculate_size(ProtoSize &size) const {
-  size.add_length(1, this->data_len);
+  size.add_length(1, this->data_len_);
   size.add_bool(1, this->end);
 }
 bool VoiceAssistantTimerEventResponse::decode_varint(uint32_t field_id, ProtoVarInt value) {
@@ -2566,14 +2583,12 @@ bool VoiceAssistantTimerEventResponse::decode_varint(uint32_t field_id, ProtoVar
 }
 bool VoiceAssistantTimerEventResponse::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 2: {
-      this->timer_id = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 2:
+      this->timer_id = value.as_string();
       break;
-    }
-    case 3: {
-      this->name = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 3:
+      this->name = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2591,18 +2606,15 @@ bool VoiceAssistantAnnounceRequest::decode_varint(uint32_t field_id, ProtoVarInt
 }
 bool VoiceAssistantAnnounceRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 1: {
-      this->media_id = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 1:
+      this->media_id = value.as_string();
       break;
-    }
-    case 2: {
-      this->text = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 2:
+      this->text = value.as_string();
       break;
-    }
-    case 3: {
-      this->preannounce_media_id = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 3:
+      this->preannounce_media_id = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2638,29 +2650,24 @@ bool VoiceAssistantExternalWakeWord::decode_varint(uint32_t field_id, ProtoVarIn
 }
 bool VoiceAssistantExternalWakeWord::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 1: {
-      this->id = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 1:
+      this->id = value.as_string();
       break;
-    }
-    case 2: {
-      this->wake_word = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 2:
+      this->wake_word = value.as_string();
       break;
-    }
     case 3:
       this->trained_languages.push_back(value.as_string());
       break;
-    case 4: {
-      this->model_type = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 4:
+      this->model_type = value.as_string();
       break;
-    }
-    case 6: {
-      this->model_hash = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 6:
+      this->model_hash = value.as_string();
       break;
-    }
-    case 7: {
-      this->url = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 7:
+      this->url = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2770,10 +2777,9 @@ bool AlarmControlPanelCommandRequest::decode_varint(uint32_t field_id, ProtoVarI
 }
 bool AlarmControlPanelCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 3: {
-      this->code = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 3:
+      this->code = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -2855,10 +2861,9 @@ bool TextCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 }
 bool TextCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 2: {
-      this->state = StringRef(reinterpret_cast<const char *>(value.data()), value.size());
+    case 2:
+      this->state = value.as_string();
       break;
-    }
     default:
       return false;
   }
@@ -3326,6 +3331,7 @@ bool UpdateCommandRequest::decode_32bit(uint32_t field_id, Proto32Bit value) {
 bool ZWaveProxyFrame::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 1: {
+      // Use raw data directly to avoid allocation
       this->data = value.data();
       this->data_len = value.size();
       break;
@@ -3350,6 +3356,7 @@ bool ZWaveProxyRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 bool ZWaveProxyRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 2: {
+      // Use raw data directly to avoid allocation
       this->data = value.data();
       this->data_len = value.size();
       break;
@@ -3365,7 +3372,7 @@ void ZWaveProxyRequest::encode(ProtoWriteBuffer buffer) const {
 }
 void ZWaveProxyRequest::calculate_size(ProtoSize &size) const {
   size.add_uint32(1, static_cast<uint32_t>(this->type));
-  size.add_length(1, this->data_len);
+  size.add_length(2, this->data_len);
 }
 #endif
 

esphome/components/api/api_pb2.h

@@ -357,11 +357,12 @@ class CommandProtoMessage : public ProtoDecodableMessage {
 class HelloRequest final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 1;
-  static constexpr uint8_t ESTIMATED_SIZE = 17;
+  static constexpr uint8_t ESTIMATED_SIZE = 27;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "hello_request"; }
 #endif
-  StringRef client_info{};
+  const uint8_t *client_info{nullptr};
+  uint16_t client_info_len{0};
   uint32_t api_version_major{0};
   uint32_t api_version_minor{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -397,11 +398,12 @@ class HelloResponse final : public ProtoMessage {
 class AuthenticationRequest final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 3;
-  static constexpr uint8_t ESTIMATED_SIZE = 9;
+  static constexpr uint8_t ESTIMATED_SIZE = 19;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "authentication_request"; }
 #endif
-  StringRef password{};
+  const uint8_t *password{nullptr};
+  uint16_t password_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -782,7 +784,7 @@ class FanStateResponse final : public StateResponseProtoMessage {
 class FanCommandRequest final : public CommandProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 31;
-  static constexpr uint8_t ESTIMATED_SIZE = 38;
+  static constexpr uint8_t ESTIMATED_SIZE = 48;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "fan_command_request"; }
 #endif
@@ -795,7 +797,8 @@ class FanCommandRequest final : public CommandProtoMessage {
   bool has_speed_level{false};
   int32_t speed_level{0};
   bool has_preset_mode{false};
-  StringRef preset_mode{};
+  const uint8_t *preset_mode{nullptr};
+  uint16_t preset_mode_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -857,7 +860,7 @@ class LightStateResponse final : public StateResponseProtoMessage {
 class LightCommandRequest final : public CommandProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 32;
-  static constexpr uint8_t ESTIMATED_SIZE = 112;
+  static constexpr uint8_t ESTIMATED_SIZE = 122;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "light_command_request"; }
 #endif
@@ -886,7 +889,8 @@ class LightCommandRequest final : public CommandProtoMessage {
   bool has_flash_length{false};
   uint32_t flash_length{0};
   bool has_effect{false};
-  StringRef effect{};
+  const uint8_t *effect{nullptr};
+  uint16_t effect_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1069,7 +1073,7 @@ class SubscribeLogsResponse final : public ProtoMessage {
 class NoiseEncryptionSetKeyRequest final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 124;
-  static constexpr uint8_t ESTIMATED_SIZE = 9;
+  static constexpr uint8_t ESTIMATED_SIZE = 19;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "noise_encryption_set_key_request"; }
 #endif
@@ -1161,13 +1165,13 @@ class HomeassistantActionRequest final : public ProtoMessage {
 class HomeassistantActionResponse final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 130;
-  static constexpr uint8_t ESTIMATED_SIZE = 24;
+  static constexpr uint8_t ESTIMATED_SIZE = 34;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "homeassistant_action_response"; }
 #endif
   uint32_t call_id{0};
   bool success{false};
-  StringRef error_message{};
+  std::string error_message{};
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
   const uint8_t *response_data{nullptr};
   uint16_t response_data_len{0};
@@ -1218,13 +1222,16 @@ class SubscribeHomeAssistantStateResponse final : public ProtoMessage {
 class HomeAssistantStateResponse final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 40;
-  static constexpr uint8_t ESTIMATED_SIZE = 27;
+  static constexpr uint8_t ESTIMATED_SIZE = 57;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "home_assistant_state_response"; }
 #endif
-  StringRef entity_id{};
-  StringRef state{};
-  StringRef attribute{};
+  const uint8_t *entity_id{nullptr};
+  uint16_t entity_id_len{0};
+  const uint8_t *state{nullptr};
+  uint16_t state_len{0};
+  const uint8_t *attribute{nullptr};
+  uint16_t attribute_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1249,12 +1256,13 @@ class GetTimeRequest final : public ProtoMessage {
 class GetTimeResponse final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 37;
-  static constexpr uint8_t ESTIMATED_SIZE = 14;
+  static constexpr uint8_t ESTIMATED_SIZE = 24;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "get_time_response"; }
 #endif
   uint32_t epoch_seconds{0};
-  StringRef timezone{};
+  const uint8_t *timezone{nullptr};
+  uint16_t timezone_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1302,7 +1310,7 @@ class ExecuteServiceArgument final : public ProtoDecodableMessage {
   bool bool_{false};
   int32_t legacy_int{0};
   float float_{0.0f};
-  StringRef string_{};
+  std::string string_{};
   int32_t int_{0};
   FixedVector<bool> bool_array{};
   FixedVector<int32_t> int_array{};
@@ -1491,7 +1499,7 @@ class ClimateStateResponse final : public StateResponseProtoMessage {
 class ClimateCommandRequest final : public CommandProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 48;
-  static constexpr uint8_t ESTIMATED_SIZE = 84;
+  static constexpr uint8_t ESTIMATED_SIZE = 104;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "climate_command_request"; }
 #endif
@@ -1508,11 +1516,13 @@ class ClimateCommandRequest final : public CommandProtoMessage {
   bool has_swing_mode{false};
   enums::ClimateSwingMode swing_mode{};
   bool has_custom_fan_mode{false};
-  StringRef custom_fan_mode{};
+  const uint8_t *custom_fan_mode{nullptr};
+  uint16_t custom_fan_mode_len{0};
   bool has_preset{false};
   enums::ClimatePreset preset{};
   bool has_custom_preset{false};
-  StringRef custom_preset{};
+  const uint8_t *custom_preset{nullptr};
+  uint16_t custom_preset_len{0};
   bool has_target_humidity{false};
   float target_humidity{0.0f};
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -1685,11 +1695,12 @@ class SelectStateResponse final : public StateResponseProtoMessage {
 class SelectCommandRequest final : public CommandProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 54;
-  static constexpr uint8_t ESTIMATED_SIZE = 18;
+  static constexpr uint8_t ESTIMATED_SIZE = 28;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "select_command_request"; }
 #endif
-  StringRef state{};
+  const uint8_t *state{nullptr};
+  uint16_t state_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1708,7 +1719,7 @@ class ListEntitiesSirenResponse final : public InfoResponseProtoMessage {
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "list_entities_siren_response"; }
 #endif
-  const FixedVector<const char *> *tones{};
+  std::vector<std::string> tones{};
   bool supports_duration{false};
   bool supports_volume{false};
   void encode(ProtoWriteBuffer buffer) const override;
@@ -1745,7 +1756,7 @@ class SirenCommandRequest final : public CommandProtoMessage {
   bool has_state{false};
   bool state{false};
   bool has_tone{false};
-  StringRef tone{};
+  std::string tone{};
   bool has_duration{false};
   uint32_t duration{0};
   bool has_volume{false};
@@ -1806,7 +1817,7 @@ class LockCommandRequest final : public CommandProtoMessage {
 #endif
   enums::LockCommand command{};
   bool has_code{false};
-  StringRef code{};
+  std::string code{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1916,7 +1927,7 @@ class MediaPlayerCommandRequest final : public CommandProtoMessage {
   bool has_volume{false};
   float volume{0.0f};
   bool has_media_url{false};
-  StringRef media_url{};
+  std::string media_url{};
   bool has_announcement{false};
   bool announcement{false};
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -2146,7 +2157,7 @@ class BluetoothGATTReadResponse final : public ProtoMessage {
 class BluetoothGATTWriteRequest final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 75;
-  static constexpr uint8_t ESTIMATED_SIZE = 19;
+  static constexpr uint8_t ESTIMATED_SIZE = 29;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "bluetooth_gatt_write_request"; }
 #endif
@@ -2182,7 +2193,7 @@ class BluetoothGATTReadDescriptorRequest final : public ProtoDecodableMessage {
 class BluetoothGATTWriteDescriptorRequest final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 77;
-  static constexpr uint8_t ESTIMATED_SIZE = 17;
+  static constexpr uint8_t ESTIMATED_SIZE = 27;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "bluetooth_gatt_write_descriptor_request"; }
 #endif
@@ -2492,8 +2503,8 @@ class VoiceAssistantResponse final : public ProtoDecodableMessage {
 };
 class VoiceAssistantEventData final : public ProtoDecodableMessage {
  public:
-  StringRef name{};
-  StringRef value{};
+  std::string name{};
+  std::string value{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -2521,12 +2532,17 @@ class VoiceAssistantEventResponse final : public ProtoDecodableMessage {
 class VoiceAssistantAudio final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 106;
-  static constexpr uint8_t ESTIMATED_SIZE = 21;
+  static constexpr uint8_t ESTIMATED_SIZE = 11;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "voice_assistant_audio"; }
 #endif
-  const uint8_t *data{nullptr};
-  uint16_t data_len{0};
+  std::string data{};
+  const uint8_t *data_ptr_{nullptr};
+  size_t data_len_{0};
+  void set_data(const uint8_t *data, size_t len) {
+    this->data_ptr_ = data;
+    this->data_len_ = len;
+  }
   bool end{false};
   void encode(ProtoWriteBuffer buffer) const override;
   void calculate_size(ProtoSize &size) const override;
@@ -2546,8 +2562,8 @@ class VoiceAssistantTimerEventResponse final : public ProtoDecodableMessage {
   const char *message_name() const override { return "voice_assistant_timer_event_response"; }
 #endif
   enums::VoiceAssistantTimerEvent event_type{};
-  StringRef timer_id{};
-  StringRef name{};
+  std::string timer_id{};
+  std::string name{};
   uint32_t total_seconds{0};
   uint32_t seconds_left{0};
   bool is_active{false};
@@ -2566,9 +2582,9 @@ class VoiceAssistantAnnounceRequest final : public ProtoDecodableMessage {
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "voice_assistant_announce_request"; }
 #endif
-  StringRef media_id{};
-  StringRef text{};
-  StringRef preannounce_media_id{};
+  std::string media_id{};
+  std::string text{};
+  std::string preannounce_media_id{};
   bool start_conversation{false};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
@@ -2611,13 +2627,13 @@ class VoiceAssistantWakeWord final : public ProtoMessage {
 };
 class VoiceAssistantExternalWakeWord final : public ProtoDecodableMessage {
  public:
-  StringRef id{};
-  StringRef wake_word{};
+  std::string id{};
+  std::string wake_word{};
   std::vector<std::string> trained_languages{};
-  StringRef model_type{};
+  std::string model_type{};
   uint32_t model_size{0};
-  StringRef model_hash{};
-  StringRef url{};
+  std::string model_hash{};
+  std::string url{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -2718,7 +2734,7 @@ class AlarmControlPanelCommandRequest final : public CommandProtoMessage {
   const char *message_name() const override { return "alarm_control_panel_command_request"; }
 #endif
   enums::AlarmControlPanelStateCommand command{};
-  StringRef code{};
+  std::string code{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -2775,7 +2791,7 @@ class TextCommandRequest final : public CommandProtoMessage {
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "text_command_request"; }
 #endif
-  StringRef state{};
+  std::string state{};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif

esphome/components/api/api_pb2_dump.cpp

@@ -736,7 +736,7 @@ template<> const char *proto_enum_to_string<enums::ZWaveProxyRequestType>(enums:
 void HelloRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "HelloRequest");
   out.append("  client_info: ");
-  out.append("'").append(this->client_info.c_str(), this->client_info.size()).append("'");
+  out.append(format_hex_pretty(this->client_info, this->client_info_len));
   out.append("\n");
   dump_field(out, "api_version_major", this->api_version_major);
   dump_field(out, "api_version_minor", this->api_version_minor);
@@ -752,7 +752,7 @@ void HelloResponse::dump_to(std::string &out) const {
 void AuthenticationRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "AuthenticationRequest");
   out.append("  password: ");
-  out.append("'").append(this->password.c_str(), this->password.size()).append("'");
+  out.append(format_hex_pretty(this->password, this->password_len));
   out.append("\n");
 }
 void AuthenticationResponse::dump_to(std::string &out) const {
@@ -965,7 +965,7 @@ void FanCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "speed_level", this->speed_level);
   dump_field(out, "has_preset_mode", this->has_preset_mode);
   out.append("  preset_mode: ");
-  out.append("'").append(this->preset_mode.c_str(), this->preset_mode.size()).append("'");
+  out.append(format_hex_pretty(this->preset_mode, this->preset_mode_len));
   out.append("\n");
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
@@ -1043,7 +1043,7 @@ void LightCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "flash_length", this->flash_length);
   dump_field(out, "has_effect", this->has_effect);
   out.append("  effect: ");
-  out.append("'").append(this->effect.c_str(), this->effect.size()).append("'");
+  out.append(format_hex_pretty(this->effect, this->effect_len));
   out.append("\n");
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
@@ -1205,9 +1205,7 @@ void HomeassistantActionResponse::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "HomeassistantActionResponse");
   dump_field(out, "call_id", this->call_id);
   dump_field(out, "success", this->success);
-  out.append("  error_message: ");
-  out.append("'").append(this->error_message.c_str(), this->error_message.size()).append("'");
-  out.append("\n");
+  dump_field(out, "error_message", this->error_message);
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
   out.append("  response_data: ");
   out.append(format_hex_pretty(this->response_data, this->response_data_len));
@@ -1228,13 +1226,13 @@ void SubscribeHomeAssistantStateResponse::dump_to(std::string &out) const {
 void HomeAssistantStateResponse::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "HomeAssistantStateResponse");
   out.append("  entity_id: ");
-  out.append("'").append(this->entity_id.c_str(), this->entity_id.size()).append("'");
+  out.append(format_hex_pretty(this->entity_id, this->entity_id_len));
   out.append("\n");
   out.append("  state: ");
-  out.append("'").append(this->state.c_str(), this->state.size()).append("'");
+  out.append(format_hex_pretty(this->state, this->state_len));
   out.append("\n");
   out.append("  attribute: ");
-  out.append("'").append(this->attribute.c_str(), this->attribute.size()).append("'");
+  out.append(format_hex_pretty(this->attribute, this->attribute_len));
   out.append("\n");
 }
 #endif
@@ -1243,7 +1241,7 @@ void GetTimeResponse::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "GetTimeResponse");
   dump_field(out, "epoch_seconds", this->epoch_seconds);
   out.append("  timezone: ");
-  out.append("'").append(this->timezone.c_str(), this->timezone.size()).append("'");
+  out.append(format_hex_pretty(this->timezone, this->timezone_len));
   out.append("\n");
 }
 #ifdef USE_API_USER_DEFINED_ACTIONS
@@ -1268,9 +1266,7 @@ void ExecuteServiceArgument::dump_to(std::string &out) const {
   dump_field(out, "bool_", this->bool_);
   dump_field(out, "legacy_int", this->legacy_int);
   dump_field(out, "float_", this->float_);
-  out.append("  string_: ");
-  out.append("'").append(this->string_.c_str(), this->string_.size()).append("'");
-  out.append("\n");
+  dump_field(out, "string_", this->string_);
   dump_field(out, "int_", this->int_);
   for (const auto it : this->bool_array) {
     dump_field(out, "bool_array", static_cast<bool>(it), 4);
@@ -1428,13 +1424,13 @@ void ClimateCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "swing_mode", static_cast<enums::ClimateSwingMode>(this->swing_mode));
   dump_field(out, "has_custom_fan_mode", this->has_custom_fan_mode);
   out.append("  custom_fan_mode: ");
-  out.append("'").append(this->custom_fan_mode.c_str(), this->custom_fan_mode.size()).append("'");
+  out.append(format_hex_pretty(this->custom_fan_mode, this->custom_fan_mode_len));
   out.append("\n");
   dump_field(out, "has_preset", this->has_preset);
   dump_field(out, "preset", static_cast<enums::ClimatePreset>(this->preset));
   dump_field(out, "has_custom_preset", this->has_custom_preset);
   out.append("  custom_preset: ");
-  out.append("'").append(this->custom_preset.c_str(), this->custom_preset.size()).append("'");
+  out.append(format_hex_pretty(this->custom_preset, this->custom_preset_len));
   out.append("\n");
   dump_field(out, "has_target_humidity", this->has_target_humidity);
   dump_field(out, "target_humidity", this->target_humidity);
@@ -1562,7 +1558,7 @@ void SelectCommandRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "SelectCommandRequest");
   dump_field(out, "key", this->key);
   out.append("  state: ");
-  out.append("'").append(this->state.c_str(), this->state.size()).append("'");
+  out.append(format_hex_pretty(this->state, this->state_len));
   out.append("\n");
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
@@ -1579,7 +1575,7 @@ void ListEntitiesSirenResponse::dump_to(std::string &out) const {
   dump_field(out, "icon", this->icon_ref_);
 #endif
   dump_field(out, "disabled_by_default", this->disabled_by_default);
-  for (const auto &it : *this->tones) {
+  for (const auto &it : this->tones) {
     dump_field(out, "tones", it, 4);
   }
   dump_field(out, "supports_duration", this->supports_duration);
@@ -1603,9 +1599,7 @@ void SirenCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "has_state", this->has_state);
   dump_field(out, "state", this->state);
   dump_field(out, "has_tone", this->has_tone);
-  out.append("  tone: ");
-  out.append("'").append(this->tone.c_str(), this->tone.size()).append("'");
-  out.append("\n");
+  dump_field(out, "tone", this->tone);
   dump_field(out, "has_duration", this->has_duration);
   dump_field(out, "duration", this->duration);
   dump_field(out, "has_volume", this->has_volume);
@@ -1647,9 +1641,7 @@ void LockCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "key", this->key);
   dump_field(out, "command", static_cast<enums::LockCommand>(this->command));
   dump_field(out, "has_code", this->has_code);
-  out.append("  code: ");
-  out.append("'").append(this->code.c_str(), this->code.size()).append("'");
-  out.append("\n");
+  dump_field(out, "code", this->code);
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
 #endif
@@ -1727,9 +1719,7 @@ void MediaPlayerCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "has_volume", this->has_volume);
   dump_field(out, "volume", this->volume);
   dump_field(out, "has_media_url", this->has_media_url);
-  out.append("  media_url: ");
-  out.append("'").append(this->media_url.c_str(), this->media_url.size()).append("'");
-  out.append("\n");
+  dump_field(out, "media_url", this->media_url);
   dump_field(out, "has_announcement", this->has_announcement);
   dump_field(out, "announcement", this->announcement);
 #ifdef USE_DEVICES
@@ -1959,12 +1949,8 @@ void VoiceAssistantResponse::dump_to(std::string &out) const {
 }
 void VoiceAssistantEventData::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantEventData");
-  out.append("  name: ");
-  out.append("'").append(this->name.c_str(), this->name.size()).append("'");
-  out.append("\n");
-  out.append("  value: ");
-  out.append("'").append(this->value.c_str(), this->value.size()).append("'");
-  out.append("\n");
+  dump_field(out, "name", this->name);
+  dump_field(out, "value", this->value);
 }
 void VoiceAssistantEventResponse::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantEventResponse");
@@ -1978,34 +1964,28 @@ void VoiceAssistantEventResponse::dump_to(std::string &out) const {
 void VoiceAssistantAudio::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantAudio");
   out.append("  data: ");
-  out.append(format_hex_pretty(this->data, this->data_len));
+  if (this->data_ptr_ != nullptr) {
+    out.append(format_hex_pretty(this->data_ptr_, this->data_len_));
+  } else {
+    out.append(format_hex_pretty(reinterpret_cast<const uint8_t *>(this->data.data()), this->data.size()));
+  }
   out.append("\n");
   dump_field(out, "end", this->end);
 }
 void VoiceAssistantTimerEventResponse::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantTimerEventResponse");
   dump_field(out, "event_type", static_cast<enums::VoiceAssistantTimerEvent>(this->event_type));
-  out.append("  timer_id: ");
-  out.append("'").append(this->timer_id.c_str(), this->timer_id.size()).append("'");
-  out.append("\n");
-  out.append("  name: ");
-  out.append("'").append(this->name.c_str(), this->name.size()).append("'");
-  out.append("\n");
+  dump_field(out, "timer_id", this->timer_id);
+  dump_field(out, "name", this->name);
   dump_field(out, "total_seconds", this->total_seconds);
   dump_field(out, "seconds_left", this->seconds_left);
   dump_field(out, "is_active", this->is_active);
 }
 void VoiceAssistantAnnounceRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantAnnounceRequest");
-  out.append("  media_id: ");
-  out.append("'").append(this->media_id.c_str(), this->media_id.size()).append("'");
-  out.append("\n");
-  out.append("  text: ");
-  out.append("'").append(this->text.c_str(), this->text.size()).append("'");
-  out.append("\n");
-  out.append("  preannounce_media_id: ");
-  out.append("'").append(this->preannounce_media_id.c_str(), this->preannounce_media_id.size()).append("'");
-  out.append("\n");
+  dump_field(out, "media_id", this->media_id);
+  dump_field(out, "text", this->text);
+  dump_field(out, "preannounce_media_id", this->preannounce_media_id);
   dump_field(out, "start_conversation", this->start_conversation);
 }
 void VoiceAssistantAnnounceFinished::dump_to(std::string &out) const { dump_field(out, "success", this->success); }
@@ -2019,25 +1999,15 @@ void VoiceAssistantWakeWord::dump_to(std::string &out) const {
 }
 void VoiceAssistantExternalWakeWord::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantExternalWakeWord");
-  out.append("  id: ");
-  out.append("'").append(this->id.c_str(), this->id.size()).append("'");
-  out.append("\n");
-  out.append("  wake_word: ");
-  out.append("'").append(this->wake_word.c_str(), this->wake_word.size()).append("'");
-  out.append("\n");
+  dump_field(out, "id", this->id);
+  dump_field(out, "wake_word", this->wake_word);
   for (const auto &it : this->trained_languages) {
     dump_field(out, "trained_languages", it, 4);
   }
-  out.append("  model_type: ");
-  out.append("'").append(this->model_type.c_str(), this->model_type.size()).append("'");
-  out.append("\n");
+  dump_field(out, "model_type", this->model_type);
   dump_field(out, "model_size", this->model_size);
-  out.append("  model_hash: ");
-  out.append("'").append(this->model_hash.c_str(), this->model_hash.size()).append("'");
-  out.append("\n");
-  out.append("  url: ");
-  out.append("'").append(this->url.c_str(), this->url.size()).append("'");
-  out.append("\n");
+  dump_field(out, "model_hash", this->model_hash);
+  dump_field(out, "url", this->url);
 }
 void VoiceAssistantConfigurationRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "VoiceAssistantConfigurationRequest");
@@ -2096,9 +2066,7 @@ void AlarmControlPanelCommandRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "AlarmControlPanelCommandRequest");
   dump_field(out, "key", this->key);
   dump_field(out, "command", static_cast<enums::AlarmControlPanelStateCommand>(this->command));
-  out.append("  code: ");
-  out.append("'").append(this->code.c_str(), this->code.size()).append("'");
-  out.append("\n");
+  dump_field(out, "code", this->code);
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
 #endif
@@ -2135,9 +2103,7 @@ void TextStateResponse::dump_to(std::string &out) const {
 void TextCommandRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "TextCommandRequest");
   dump_field(out, "key", this->key);
-  out.append("  state: ");
-  out.append("'").append(this->state.c_str(), this->state.size()).append("'");
-  out.append("\n");
+  dump_field(out, "state", this->state);
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
 #endif

esphome/components/api/api_server.cpp

@@ -125,18 +125,15 @@ void APIServer::loop() {
       if (!sock)
         break;
 
-      char peername[socket::PEERNAME_MAX_LEN];
-      sock->getpeername_to(peername);
-
       // Check if we're at the connection limit
       if (this->clients_.size() >= this->max_connections_) {
-        ESP_LOGW(TAG, "Max connections (%d), rejecting %s", this->max_connections_, peername);
+        ESP_LOGW(TAG, "Max connections (%d), rejecting %s", this->max_connections_, sock->getpeername().c_str());
         // Immediately close - socket destructor will handle cleanup
         sock.reset();
         continue;
       }
 
-      ESP_LOGD(TAG, "Accept %s", peername);
+      ESP_LOGD(TAG, "Accept %s", sock->getpeername().c_str());
 
       auto *conn = new APIConnection(std::move(sock), this);
       this->clients_.emplace_back(conn);
@@ -169,7 +166,8 @@ void APIServer::loop() {
     // Network is down - disconnect all clients
     for (auto &client : this->clients_) {
       client->on_fatal_error();
-      client->log_client_(ESPHOME_LOG_LEVEL_WARN, LOG_STR("Network down; disconnect"));
+      ESP_LOGW(TAG, "%s (%s): Network down; disconnect", client->client_info_.name.c_str(),
+               client->client_info_.peername.c_str());
     }
     // Continue to process and clean up the clients below
   }
@@ -187,8 +185,7 @@ void APIServer::loop() {
 
     // Rare case: handle disconnection
 #ifdef USE_API_CLIENT_DISCONNECTED_TRIGGER
-    // Trigger expects std::string, get fresh peername from socket
-    this->client_disconnected_trigger_->trigger(client->client_info_.name, client->get_peername());
+    this->client_disconnected_trigger_->trigger(client->client_info_.name, client->client_info_.peername);
 #endif
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
     this->unregister_active_action_calls_for_connection(client.get());
@@ -397,7 +394,7 @@ void APIServer::register_action_response_callback(uint32_t call_id, ActionRespon
   this->action_response_callbacks_.push_back({call_id, std::move(callback)});
 }
 
-void APIServer::handle_action_response(uint32_t call_id, bool success, StringRef error_message) {
+void APIServer::handle_action_response(uint32_t call_id, bool success, const std::string &error_message) {
   for (auto it = this->action_response_callbacks_.begin(); it != this->action_response_callbacks_.end(); ++it) {
     if (it->call_id == call_id) {
       auto callback = std::move(it->callback);
@@ -409,7 +406,7 @@ void APIServer::handle_action_response(uint32_t call_id, bool success, StringRef
   }
 }
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
-void APIServer::handle_action_response(uint32_t call_id, bool success, StringRef error_message,
+void APIServer::handle_action_response(uint32_t call_id, bool success, const std::string &error_message,
                                        const uint8_t *response_data, size_t response_data_len) {
   for (auto it = this->action_response_callbacks_.begin(); it != this->action_response_callbacks_.end(); ++it) {
     if (it->call_id == call_id) {
@@ -428,7 +425,7 @@ void APIServer::handle_action_response(uint32_t call_id, bool success, StringRef
 #ifdef USE_API_HOMEASSISTANT_STATES
 // Helper to add subscription (reduces duplication)
 void APIServer::add_state_subscription_(const char *entity_id, const char *attribute,
-                                        std::function<void(const std::string &)> f, bool once) {
+                                        std::function<void(std::string)> f, bool once) {
   this->state_subs_.push_back(HomeAssistantStateSubscription{
       .entity_id = entity_id, .attribute = attribute, .callback = std::move(f), .once = once,
       // entity_id_dynamic_storage and attribute_dynamic_storage remain nullptr (no heap allocation)
@@ -437,7 +434,7 @@ void APIServer::add_state_subscription_(const char *entity_id, const char *attri
 
 // Helper to add subscription with heap-allocated strings (reduces duplication)
 void APIServer::add_state_subscription_(std::string entity_id, optional<std::string> attribute,
-                                        std::function<void(const std::string &)> f, bool once) {
+                                        std::function<void(std::string)> f, bool once) {
   HomeAssistantStateSubscription sub;
   // Allocate heap storage for the strings
   sub.entity_id_dynamic_storage = std::make_unique<std::string>(std::move(entity_id));
@@ -457,23 +454,23 @@ void APIServer::add_state_subscription_(std::string entity_id, optional<std::str
 
 // New const char* overload (for internal components - zero allocation)
 void APIServer::subscribe_home_assistant_state(const char *entity_id, const char *attribute,
-                                               std::function<void(const std::string &)> f) {
+                                               std::function<void(std::string)> f) {
   this->add_state_subscription_(entity_id, attribute, std::move(f), false);
 }
 
 void APIServer::get_home_assistant_state(const char *entity_id, const char *attribute,
-                                         std::function<void(const std::string &)> f) {
+                                         std::function<void(std::string)> f) {
   this->add_state_subscription_(entity_id, attribute, std::move(f), true);
 }
 
 // Existing std::string overload (for custom_api_device.h - heap allocation)
 void APIServer::subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
-                                               std::function<void(const std::string &)> f) {
+                                               std::function<void(std::string)> f) {
   this->add_state_subscription_(std::move(entity_id), std::move(attribute), std::move(f), false);
 }
 
 void APIServer::get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
-                                         std::function<void(const std::string &)> f) {
+                                         std::function<void(std::string)> f) {
   this->add_state_subscription_(std::move(entity_id), std::move(attribute), std::move(f), true);
 }
 
@@ -681,7 +678,7 @@ void APIServer::unregister_active_action_calls_for_connection(APIConnection *con
   }
 }
 
-void APIServer::send_action_response(uint32_t action_call_id, bool success, StringRef error_message) {
+void APIServer::send_action_response(uint32_t action_call_id, bool success, const std::string &error_message) {
   for (auto &call : this->active_action_calls_) {
     if (call.action_call_id == action_call_id) {
       call.connection->send_execute_service_response(call.client_call_id, success, error_message);
@@ -691,7 +688,7 @@ void APIServer::send_action_response(uint32_t action_call_id, bool success, Stri
   ESP_LOGW(TAG, "Cannot send response: no active call found for action_call_id %u", action_call_id);
 }
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
-void APIServer::send_action_response(uint32_t action_call_id, bool success, StringRef error_message,
+void APIServer::send_action_response(uint32_t action_call_id, bool success, const std::string &error_message,
                                      const uint8_t *response_data, size_t response_data_len) {
   for (auto &call : this->active_action_calls_) {
     if (call.action_call_id == action_call_id) {

esphome/components/api/api_server.h

@@ -143,10 +143,10 @@ class APIServer : public Component,
   // Action response handling
   using ActionResponseCallback = std::function<void(const class ActionResponse &)>;
   void register_action_response_callback(uint32_t call_id, ActionResponseCallback callback);
-  void handle_action_response(uint32_t call_id, bool success, StringRef error_message);
+  void handle_action_response(uint32_t call_id, bool success, const std::string &error_message);
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
-  void handle_action_response(uint32_t call_id, bool success, StringRef error_message, const uint8_t *response_data,
-                              size_t response_data_len);
+  void handle_action_response(uint32_t call_id, bool success, const std::string &error_message,
+                              const uint8_t *response_data, size_t response_data_len);
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES
 #endif  // USE_API_HOMEASSISTANT_SERVICES
@@ -165,9 +165,9 @@ class APIServer : public Component,
   void unregister_active_action_call(uint32_t action_call_id);
   void unregister_active_action_calls_for_connection(APIConnection *conn);
   // Send response for a specific action call (uses action_call_id, sends client_call_id in response)
-  void send_action_response(uint32_t action_call_id, bool success, StringRef error_message);
+  void send_action_response(uint32_t action_call_id, bool success, const std::string &error_message);
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
-  void send_action_response(uint32_t action_call_id, bool success, StringRef error_message,
+  void send_action_response(uint32_t action_call_id, bool success, const std::string &error_message,
                             const uint8_t *response_data, size_t response_data_len);
 #endif  // USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
 #endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
@@ -195,7 +195,7 @@ class APIServer : public Component,
   struct HomeAssistantStateSubscription {
     const char *entity_id;  // Pointer to flash (internal) or heap (external)
     const char *attribute;  // Pointer to flash or nullptr (nullptr means no attribute)
-    std::function<void(const std::string &)> callback;
+    std::function<void(std::string)> callback;
     bool once;
 
     // Dynamic storage for external components using std::string API (custom_api_device.h)
@@ -205,16 +205,14 @@ class APIServer : public Component,
   };
 
   // New const char* overload (for internal components - zero allocation)
-  void subscribe_home_assistant_state(const char *entity_id, const char *attribute,
-                                      std::function<void(const std::string &)> f);
-  void get_home_assistant_state(const char *entity_id, const char *attribute,
-                                std::function<void(const std::string &)> f);
+  void subscribe_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(std::string)> f);
+  void get_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(std::string)> f);
 
   // Existing std::string overload (for custom_api_device.h - heap allocation)
   void subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
-                                      std::function<void(const std::string &)> f);
+                                      std::function<void(std::string)> f);
   void get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
-                                std::function<void(const std::string &)> f);
+                                std::function<void(std::string)> f);
 
   const std::vector<HomeAssistantStateSubscription> &get_state_subs() const;
 #endif
@@ -238,10 +236,10 @@ class APIServer : public Component,
 #endif  // USE_API_NOISE
 #ifdef USE_API_HOMEASSISTANT_STATES
   // Helper methods to reduce code duplication
-  void add_state_subscription_(const char *entity_id, const char *attribute, std::function<void(const std::string &)> f,
+  void add_state_subscription_(const char *entity_id, const char *attribute, std::function<void(std::string)> f,
                                bool once);
   void add_state_subscription_(std::string entity_id, optional<std::string> attribute,
-                               std::function<void(const std::string &)> f, bool once);
+                               std::function<void(std::string)> f, bool once);
 #endif  // USE_API_HOMEASSISTANT_STATES
   // Pointers and pointer-like types first (4 bytes each)
   std::unique_ptr<socket::Socket> socket_ = nullptr;

esphome/components/api/custom_api_device.h

@@ -122,7 +122,7 @@ class CustomAPIDevice {
    *   subscribe_homeassistant_state(&CustomNativeAPI::on_state_changed, "climate.kitchen", "current_temperature");
    * }
    *
-   * void on_state_changed(const std::string &state) {
+   * void on_state_changed(std::string state) {
    *   // State of sensor.weather_forecast is `state`
    * }
    * ```
@@ -133,7 +133,7 @@ class CustomAPIDevice {
    * @param attribute The entity state attribute to track.
    */
   template<typename T>
-  void subscribe_homeassistant_state(void (T::*callback)(const std::string &), const std::string &entity_id,
+  void subscribe_homeassistant_state(void (T::*callback)(std::string), const std::string &entity_id,
                                      const std::string &attribute = "") {
     auto f = std::bind(callback, (T *) this, std::placeholders::_1);
     global_api_server->subscribe_home_assistant_state(entity_id, optional<std::string>(attribute), f);
@@ -148,7 +148,7 @@ class CustomAPIDevice {
    *   subscribe_homeassistant_state(&CustomNativeAPI::on_state_changed, "sensor.weather_forecast");
    * }
    *
-   * void on_state_changed(const std::string &entity_id, const std::string &state) {
+   * void on_state_changed(std::string entity_id, std::string state) {
    *   // State of `entity_id` is `state`
    * }
    * ```
@@ -159,14 +159,14 @@ class CustomAPIDevice {
    * @param attribute The entity state attribute to track.
    */
   template<typename T>
-  void subscribe_homeassistant_state(void (T::*callback)(const std::string &, const std::string &),
-                                     const std::string &entity_id, const std::string &attribute = "") {
+  void subscribe_homeassistant_state(void (T::*callback)(std::string, std::string), const std::string &entity_id,
+                                     const std::string &attribute = "") {
     auto f = std::bind(callback, (T *) this, entity_id, std::placeholders::_1);
     global_api_server->subscribe_home_assistant_state(entity_id, optional<std::string>(attribute), f);
   }
 #else
   template<typename T>
-  void subscribe_homeassistant_state(void (T::*callback)(const std::string &), const std::string &entity_id,
+  void subscribe_homeassistant_state(void (T::*callback)(std::string), const std::string &entity_id,
                                      const std::string &attribute = "") {
     static_assert(sizeof(T) == 0,
                   "subscribe_homeassistant_state() requires 'homeassistant_states: true' in the 'api:' section "
@@ -174,8 +174,8 @@ class CustomAPIDevice {
   }
 
   template<typename T>
-  void subscribe_homeassistant_state(void (T::*callback)(const std::string &, const std::string &),
-                                     const std::string &entity_id, const std::string &attribute = "") {
+  void subscribe_homeassistant_state(void (T::*callback)(std::string, std::string), const std::string &entity_id,
+                                     const std::string &attribute = "") {
     static_assert(sizeof(T) == 0,
                   "subscribe_homeassistant_state() requires 'homeassistant_states: true' in the 'api:' section "
                   "of your YAML configuration");

esphome/components/api/homeassistant_service.h

@@ -67,10 +67,10 @@ template<typename... Ts> class TemplatableKeyValuePair {
 // the callback is invoked synchronously while the message is on the stack).
 class ActionResponse {
  public:
-  ActionResponse(bool success, StringRef error_message) : success_(success), error_message_(error_message) {}
+  ActionResponse(bool success, const std::string &error_message) : success_(success), error_message_(error_message) {}
 
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
-  ActionResponse(bool success, StringRef error_message, const uint8_t *data, size_t data_len)
+  ActionResponse(bool success, const std::string &error_message, const uint8_t *data, size_t data_len)
       : success_(success), error_message_(error_message) {
     if (data == nullptr || data_len == 0)
       return;

esphome/components/audio/audio_reader.cpp

@@ -1,6 +1,6 @@
 #include "audio_reader.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/defines.h"
 #include "esphome/core/hal.h"

esphome/components/audio/audio_reader.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "audio.h"
 #include "audio_transfer_buffer.h"

esphome/components/bh1750/bh1750.cpp

@@ -1,8 +1,8 @@
 #include "bh1750.h"
 #include "esphome/core/log.h"
-#include "esphome/core/application.h"
 
-namespace esphome::bh1750 {
+namespace esphome {
+namespace bh1750 {
 
 static const char *const TAG = "bh1750.sensor";
 
@@ -13,31 +13,6 @@ static const uint8_t BH1750_COMMAND_ONE_TIME_L = 0b00100011;
 static const uint8_t BH1750_COMMAND_ONE_TIME_H = 0b00100000;
 static const uint8_t BH1750_COMMAND_ONE_TIME_H2 = 0b00100001;
 
-static constexpr uint32_t MEASUREMENT_TIMEOUT_MS = 2000;
-static constexpr float HIGH_LIGHT_THRESHOLD_LX = 7000.0f;
-
-// Measurement time constants (datasheet values)
-static constexpr uint16_t MTREG_DEFAULT = 69;
-static constexpr uint16_t MTREG_MIN = 31;
-static constexpr uint16_t MTREG_MAX = 254;
-static constexpr uint16_t MEAS_TIME_L_MS = 24;   // L-resolution max measurement time @ mtreg=69
-static constexpr uint16_t MEAS_TIME_H_MS = 180;  // H/H2-resolution max measurement time @ mtreg=69
-
-// Conversion constants (datasheet formulas)
-static constexpr float RESOLUTION_DIVISOR = 1.2f;  // counts to lux conversion divisor
-static constexpr float MODE_H2_DIVISOR = 2.0f;     // H2 mode has 2x higher resolution
-
-// MTreg calculation constants
-static constexpr int COUNTS_TARGET = 50000;  // Target counts for optimal range (avoid saturation)
-static constexpr int COUNTS_NUMERATOR = 10;
-static constexpr int COUNTS_DENOMINATOR = 12;
-
-// MTreg register bit manipulation constants
-static constexpr uint8_t MTREG_HI_SHIFT = 5;       // High 3 bits start at bit 5
-static constexpr uint8_t MTREG_HI_MASK = 0b111;    // 3-bit mask for high bits
-static constexpr uint8_t MTREG_LO_SHIFT = 0;       // Low 5 bits start at bit 0
-static constexpr uint8_t MTREG_LO_MASK = 0b11111;  // 5-bit mask for low bits
-
 /*
 bh1750 properties:
 
@@ -68,7 +43,74 @@ void BH1750Sensor::setup() {
     this->mark_failed();
     return;
   }
-  this->state_ = IDLE;
+}
+
+void BH1750Sensor::read_lx_(BH1750Mode mode, uint8_t mtreg, const std::function<void(float)> &f) {
+  // turn on (after one-shot sensor automatically powers down)
+  uint8_t turn_on = BH1750_COMMAND_POWER_ON;
+  if (this->write(&turn_on, 1) != i2c::ERROR_OK) {
+    ESP_LOGW(TAG, "Power on failed");
+    f(NAN);
+    return;
+  }
+
+  if (active_mtreg_ != mtreg) {
+    // set mtreg
+    uint8_t mtreg_hi = BH1750_COMMAND_MT_REG_HI | ((mtreg >> 5) & 0b111);
+    uint8_t mtreg_lo = BH1750_COMMAND_MT_REG_LO | ((mtreg >> 0) & 0b11111);
+    if (this->write(&mtreg_hi, 1) != i2c::ERROR_OK || this->write(&mtreg_lo, 1) != i2c::ERROR_OK) {
+      ESP_LOGW(TAG, "Set measurement time failed");
+      active_mtreg_ = 0;
+      f(NAN);
+      return;
+    }
+    active_mtreg_ = mtreg;
+  }
+
+  uint8_t cmd;
+  uint16_t meas_time;
+  switch (mode) {
+    case BH1750_MODE_L:
+      cmd = BH1750_COMMAND_ONE_TIME_L;
+      meas_time = 24 * mtreg / 69;
+      break;
+    case BH1750_MODE_H:
+      cmd = BH1750_COMMAND_ONE_TIME_H;
+      meas_time = 180 * mtreg / 69;
+      break;
+    case BH1750_MODE_H2:
+      cmd = BH1750_COMMAND_ONE_TIME_H2;
+      meas_time = 180 * mtreg / 69;
+      break;
+    default:
+      f(NAN);
+      return;
+  }
+  if (this->write(&cmd, 1) != i2c::ERROR_OK) {
+    ESP_LOGW(TAG, "Start measurement failed");
+    f(NAN);
+    return;
+  }
+
+  // probably not needed, but adjust for rounding
+  meas_time++;
+
+  this->set_timeout("read", meas_time, [this, mode, mtreg, f]() {
+    uint16_t raw_value;
+    if (this->read(reinterpret_cast<uint8_t *>(&raw_value), 2) != i2c::ERROR_OK) {
+      ESP_LOGW(TAG, "Read data failed");
+      f(NAN);
+      return;
+    }
+    raw_value = i2c::i2ctohs(raw_value);
+
+    float lx = float(raw_value) / 1.2f;
+    lx *= 69.0f / mtreg;
+    if (mode == BH1750_MODE_H2)
+      lx /= 2.0f;
+
+    f(lx);
+  });
 }
 
 void BH1750Sensor::dump_config() {
@@ -82,189 +124,45 @@ void BH1750Sensor::dump_config() {
 }
 
 void BH1750Sensor::update() {
-  const uint32_t now = millis();
-
-  // Start coarse measurement to determine optimal mode/mtreg
-  if (this->state_ != IDLE) {
-    // Safety timeout: reset if stuck
-    if (now - this->measurement_start_time_ > MEASUREMENT_TIMEOUT_MS) {
-      ESP_LOGW(TAG, "Measurement timeout, resetting state");
-      this->state_ = IDLE;
-    } else {
-      ESP_LOGW(TAG, "Previous measurement not complete, skipping update");
+  // first do a quick measurement in L-mode with full range
+  // to find right range
+  this->read_lx_(BH1750_MODE_L, 31, [this](float val) {
+    if (std::isnan(val)) {
+      this->status_set_warning();
+      this->publish_state(NAN);
       return;
     }
-  }
 
-  if (!this->start_measurement_(BH1750_MODE_L, MTREG_MIN, now)) {
-    this->status_set_warning();
-    this->publish_state(NAN);
-    return;
-  }
-
-  this->state_ = WAITING_COARSE_MEASUREMENT;
-  this->enable_loop();  // Enable loop while measurement in progress
-}
-
-void BH1750Sensor::loop() {
-  const uint32_t now = App.get_loop_component_start_time();
-
-  switch (this->state_) {
-    case IDLE:
-      // Disable loop when idle to save cycles
-      this->disable_loop();
-      break;
-
-    case WAITING_COARSE_MEASUREMENT:
-      if (now - this->measurement_start_time_ >= this->measurement_duration_) {
-        this->state_ = READING_COARSE_RESULT;
-      }
-      break;
-
-    case READING_COARSE_RESULT: {
-      float lx;
-      if (!this->read_measurement_(lx)) {
-        this->fail_and_reset_();
-        break;
-      }
-
-      this->process_coarse_result_(lx);
-
-      // Start fine measurement with optimal settings
-      // fetch millis() again since the read can take a bit
-      if (!this->start_measurement_(this->fine_mode_, this->fine_mtreg_, millis())) {
-        this->fail_and_reset_();
-        break;
-      }
-
-      this->state_ = WAITING_FINE_MEASUREMENT;
-      break;
+    BH1750Mode use_mode;
+    uint8_t use_mtreg;
+    if (val <= 7000) {
+      use_mode = BH1750_MODE_H2;
+      use_mtreg = 254;
+    } else {
+      use_mode = BH1750_MODE_H;
+      // lx = counts / 1.2 * (69 / mtreg)
+      // -> mtreg = counts / 1.2 * (69 / lx)
+      // calculate for counts=50000 (allow some range to not saturate, but maximize mtreg)
+      // -> mtreg = 50000*(10/12)*(69/lx)
+      int ideal_mtreg = 50000 * 10 * 69 / (12 * (int) val);
+      use_mtreg = std::min(254, std::max(31, ideal_mtreg));
     }
+    ESP_LOGV(TAG, "L result: %f -> Calculated mode=%d, mtreg=%d", val, (int) use_mode, use_mtreg);
 
-    case WAITING_FINE_MEASUREMENT:
-      if (now - this->measurement_start_time_ >= this->measurement_duration_) {
-        this->state_ = READING_FINE_RESULT;
+    this->read_lx_(use_mode, use_mtreg, [this](float val) {
+      if (std::isnan(val)) {
+        this->status_set_warning();
+        this->publish_state(NAN);
+        return;
       }
-      break;
-
-    case READING_FINE_RESULT: {
-      float lx;
-      if (!this->read_measurement_(lx)) {
-        this->fail_and_reset_();
-        break;
-      }
-
-      ESP_LOGD(TAG, "'%s': Illuminance=%.1flx", this->get_name().c_str(), lx);
+      ESP_LOGD(TAG, "'%s': Illuminance=%.1flx", this->get_name().c_str(), val);
       this->status_clear_warning();
-      this->publish_state(lx);
-      this->state_ = IDLE;
-      break;
-    }
-  }
-}
-
-bool BH1750Sensor::start_measurement_(BH1750Mode mode, uint8_t mtreg, uint32_t now) {
-  // Power on
-  uint8_t turn_on = BH1750_COMMAND_POWER_ON;
-  if (this->write(&turn_on, 1) != i2c::ERROR_OK) {
-    ESP_LOGW(TAG, "Power on failed");
-    return false;
-  }
-
-  // Set MTreg if changed
-  if (this->active_mtreg_ != mtreg) {
-    uint8_t mtreg_hi = BH1750_COMMAND_MT_REG_HI | ((mtreg >> MTREG_HI_SHIFT) & MTREG_HI_MASK);
-    uint8_t mtreg_lo = BH1750_COMMAND_MT_REG_LO | ((mtreg >> MTREG_LO_SHIFT) & MTREG_LO_MASK);
-    if (this->write(&mtreg_hi, 1) != i2c::ERROR_OK || this->write(&mtreg_lo, 1) != i2c::ERROR_OK) {
-      ESP_LOGW(TAG, "Set measurement time failed");
-      this->active_mtreg_ = 0;
-      return false;
-    }
-    this->active_mtreg_ = mtreg;
-  }
-
-  // Start measurement
-  uint8_t cmd;
-  uint16_t meas_time;
-  switch (mode) {
-    case BH1750_MODE_L:
-      cmd = BH1750_COMMAND_ONE_TIME_L;
-      meas_time = MEAS_TIME_L_MS * mtreg / MTREG_DEFAULT;
-      break;
-    case BH1750_MODE_H:
-      cmd = BH1750_COMMAND_ONE_TIME_H;
-      meas_time = MEAS_TIME_H_MS * mtreg / MTREG_DEFAULT;
-      break;
-    case BH1750_MODE_H2:
-      cmd = BH1750_COMMAND_ONE_TIME_H2;
-      meas_time = MEAS_TIME_H_MS * mtreg / MTREG_DEFAULT;
-      break;
-    default:
-      return false;
-  }
-
-  if (this->write(&cmd, 1) != i2c::ERROR_OK) {
-    ESP_LOGW(TAG, "Start measurement failed");
-    return false;
-  }
-
-  // Store current measurement parameters
-  this->current_mode_ = mode;
-  this->current_mtreg_ = mtreg;
-  this->measurement_start_time_ = now;
-  this->measurement_duration_ = meas_time + 1;  // Add 1ms for safety
-
-  return true;
-}
-
-bool BH1750Sensor::read_measurement_(float &lx_out) {
-  uint16_t raw_value;
-  if (this->read(reinterpret_cast<uint8_t *>(&raw_value), 2) != i2c::ERROR_OK) {
-    ESP_LOGW(TAG, "Read data failed");
-    return false;
-  }
-  raw_value = i2c::i2ctohs(raw_value);
-
-  float lx = float(raw_value) / RESOLUTION_DIVISOR;
-  lx *= float(MTREG_DEFAULT) / this->current_mtreg_;
-  if (this->current_mode_ == BH1750_MODE_H2) {
-    lx /= MODE_H2_DIVISOR;
-  }
-
-  lx_out = lx;
-  return true;
-}
-
-void BH1750Sensor::process_coarse_result_(float lx) {
-  if (std::isnan(lx)) {
-    // Use defaults if coarse measurement failed
-    this->fine_mode_ = BH1750_MODE_H2;
-    this->fine_mtreg_ = MTREG_MAX;
-    return;
-  }
-
-  if (lx <= HIGH_LIGHT_THRESHOLD_LX) {
-    this->fine_mode_ = BH1750_MODE_H2;
-    this->fine_mtreg_ = MTREG_MAX;
-  } else {
-    this->fine_mode_ = BH1750_MODE_H;
-    // lx = counts / 1.2 * (69 / mtreg)
-    // -> mtreg = counts / 1.2 * (69 / lx)
-    // calculate for counts=50000 (allow some range to not saturate, but maximize mtreg)
-    // -> mtreg = 50000*(10/12)*(69/lx)
-    int ideal_mtreg = COUNTS_TARGET * COUNTS_NUMERATOR * MTREG_DEFAULT / (COUNTS_DENOMINATOR * (int) lx);
-    this->fine_mtreg_ = std::min((int) MTREG_MAX, std::max((int) MTREG_MIN, ideal_mtreg));
-  }
-
-  ESP_LOGV(TAG, "L result: %.1f -> Calculated mode=%d, mtreg=%d", lx, (int) this->fine_mode_, this->fine_mtreg_);
-}
-
-void BH1750Sensor::fail_and_reset_() {
-  this->status_set_warning();
-  this->publish_state(NAN);
-  this->state_ = IDLE;
+      this->publish_state(val);
+    });
+  });
 }
 
 float BH1750Sensor::get_setup_priority() const { return setup_priority::DATA; }
 
-}  // namespace esphome::bh1750
+}  // namespace bh1750
+}  // namespace esphome

esphome/components/bh1750/bh1750.h

@@ -4,9 +4,10 @@
 #include "esphome/components/sensor/sensor.h"
 #include "esphome/components/i2c/i2c.h"
 
-namespace esphome::bh1750 {
+namespace esphome {
+namespace bh1750 {
 
-enum BH1750Mode : uint8_t {
+enum BH1750Mode {
   BH1750_MODE_L,
   BH1750_MODE_H,
   BH1750_MODE_H2,
@@ -20,36 +21,13 @@ class BH1750Sensor : public sensor::Sensor, public PollingComponent, public i2c:
   void setup() override;
   void dump_config() override;
   void update() override;
-  void loop() override;
   float get_setup_priority() const override;
 
  protected:
-  // State machine states
-  enum State : uint8_t {
-    IDLE,
-    WAITING_COARSE_MEASUREMENT,
-    READING_COARSE_RESULT,
-    WAITING_FINE_MEASUREMENT,
-    READING_FINE_RESULT,
-  };
+  void read_lx_(BH1750Mode mode, uint8_t mtreg, const std::function<void(float)> &f);
 
-  // 4-byte aligned members
-  uint32_t measurement_start_time_{0};
-  uint32_t measurement_duration_{0};
-
-  // 1-byte members grouped together to minimize padding
-  State state_{IDLE};
-  BH1750Mode current_mode_{BH1750_MODE_L};
-  uint8_t current_mtreg_{31};
-  BH1750Mode fine_mode_{BH1750_MODE_H2};
-  uint8_t fine_mtreg_{254};
   uint8_t active_mtreg_{0};
-
-  // Helper methods
-  bool start_measurement_(BH1750Mode mode, uint8_t mtreg, uint32_t now);
-  bool read_measurement_(float &lx_out);
-  void process_coarse_result_(float lx);
-  void fail_and_reset_();
 };
 
-}  // namespace esphome::bh1750
+}  // namespace bh1750
+}  // namespace esphome

esphome/components/captive_portal/__init__.py

@@ -97,10 +97,6 @@ async def to_code(config):
     cg.add_define("USE_CAPTIVE_PORTAL")
 
     if CORE.using_arduino:
-        if CORE.is_esp32:
-            cg.add_library("ESP32 Async UDP", None)
-            cg.add_library("DNSServer", None)
-            cg.add_library("WiFi", None)
         if CORE.is_esp8266:
             cg.add_library("DNSServer", None)
         if CORE.is_libretiny:
@@ -110,6 +106,9 @@ async def to_code(config):
 # Only compile the ESP-IDF DNS server when using ESP-IDF framework
 FILTER_SOURCE_FILES = filter_source_files_from_platform(
     {
-        "dns_server_esp32_idf.cpp": {PlatformFramework.ESP32_IDF},
+        "dns_server_esp32_idf.cpp": {
+            PlatformFramework.ESP32_ARDUINO,
+            PlatformFramework.ESP32_IDF,
+        },
     }
 )

esphome/components/captive_portal/captive_portal.cpp

@@ -69,12 +69,11 @@ void CaptivePortal::start() {
 
   network::IPAddress ip = wifi::global_wifi_component->wifi_soft_ap_ip();
 
-#ifdef USE_ESP_IDF
+#if defined(USE_ESP32)
   // Create DNS server instance for ESP-IDF
   this->dns_server_ = make_unique<DNSServer>();
   this->dns_server_->start(ip);
-#endif
-#ifdef USE_ARDUINO
+#elif defined(USE_ARDUINO)
   this->dns_server_ = make_unique<DNSServer>();
   this->dns_server_->setErrorReplyCode(DNSReplyCode::NoError);
   this->dns_server_->start(53, ESPHOME_F("*"), ip);

esphome/components/captive_portal/captive_portal.h

@@ -2,11 +2,10 @@
 #include "esphome/core/defines.h"
 #ifdef USE_CAPTIVE_PORTAL
 #include <memory>
-#ifdef USE_ARDUINO
-#include <DNSServer.h>
-#endif
-#ifdef USE_ESP_IDF
+#if defined(USE_ESP32)
 #include "dns_server_esp32_idf.h"
+#elif defined(USE_ARDUINO)
+#include <DNSServer.h>
 #endif
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
@@ -23,15 +22,14 @@ class CaptivePortal : public AsyncWebHandler, public Component {
   void setup() override;
   void dump_config() override;
   void loop() override {
-#ifdef USE_ARDUINO
-    if (this->dns_server_ != nullptr) {
-      this->dns_server_->processNextRequest();
-    }
-#endif
-#ifdef USE_ESP_IDF
+#if defined(USE_ESP32)
     if (this->dns_server_ != nullptr) {
       this->dns_server_->process_next_request();
     }
+#elif defined(USE_ARDUINO)
+    if (this->dns_server_ != nullptr) {
+      this->dns_server_->processNextRequest();
+    }
 #endif
   }
   float get_setup_priority() const override;
@@ -64,7 +62,7 @@ class CaptivePortal : public AsyncWebHandler, public Component {
   web_server_base::WebServerBase *base_;
   bool initialized_{false};
   bool active_{false};
-#if defined(USE_ARDUINO) || defined(USE_ESP_IDF)
+#if defined(USE_ARDUINO) || defined(USE_ESP32)
   std::unique_ptr<DNSServer> dns_server_{nullptr};
 #endif
 };

esphome/components/captive_portal/dns_server_esp32_idf.cpp

@@ -1,5 +1,5 @@
 #include "dns_server_esp32_idf.h"
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/log.h"
 #include "esphome/core/hal.h"
@@ -202,4 +202,4 @@ void DNSServer::process_next_request() {
 
 }  // namespace esphome::captive_portal
 
-#endif  // USE_ESP_IDF
+#endif  // USE_ESP32

esphome/components/captive_portal/dns_server_esp32_idf.h

@@ -1,5 +1,5 @@
 #pragma once
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include <memory>
 #include "esphome/core/helpers.h"
@@ -24,4 +24,4 @@ class DNSServer {
 
 }  // namespace esphome::captive_portal
 
-#endif  // USE_ESP_IDF
+#endif  // USE_ESP32

esphome/components/climate/climate.cpp

@@ -369,7 +369,7 @@ optional<ClimateDeviceRestoreState> Climate::restore_state_() {
 }
 
 void Climate::save_state_() {
-#if (defined(USE_ESP_IDF) || (defined(USE_ESP8266) && USE_ARDUINO_VERSION_CODE >= VERSION_CODE(3, 0, 0))) && \
+#if (defined(USE_ESP32) || (defined(USE_ESP8266) && USE_ARDUINO_VERSION_CODE >= VERSION_CODE(3, 0, 0))) && \
     !defined(CLANG_TIDY)
 #pragma GCC diagnostic ignored "-Wclass-memaccess"
 #define TEMP_IGNORE_MEMACCESS

esphome/components/debug/debug_esp32.cpp

@@ -200,7 +200,7 @@ void DebugComponent::get_device_info_(std::string &device_info) {
 #ifdef USE_ARDUINO
   ESP_LOGD(TAG, "Framework: Arduino");
   device_info += "Arduino";
-#elif defined(USE_ESP_IDF)
+#elif defined(USE_ESP32)
   ESP_LOGD(TAG, "Framework: ESP-IDF");
   device_info += "ESP-IDF";
 #else

esphome/components/display/__init__.py

@@ -63,13 +63,11 @@ def validate_auto_clear(value):
     return cv.boolean(value)
 
 
-def basic_display_schema(default_update_interval: str = "1s") -> cv.Schema:
-    """Create a basic display schema with configurable default update interval."""
-    return cv.Schema(
-        {
-            cv.Exclusive(CONF_LAMBDA, CONF_LAMBDA): cv.lambda_,
-        }
-    ).extend(cv.polling_component_schema(default_update_interval))
+BASIC_DISPLAY_SCHEMA = cv.Schema(
+    {
+        cv.Exclusive(CONF_LAMBDA, CONF_LAMBDA): cv.lambda_,
+    }
+).extend(cv.polling_component_schema("1s"))
 
 
 def _validate_test_card(config):
@@ -83,41 +81,34 @@ def _validate_test_card(config):
     return config
 
 
-def full_display_schema(default_update_interval: str = "1s") -> cv.Schema:
-    """Create a full display schema with configurable default update interval."""
-    schema = basic_display_schema(default_update_interval).extend(
-        {
-            cv.Optional(CONF_ROTATION): validate_rotation,
-            cv.Exclusive(CONF_PAGES, CONF_LAMBDA): cv.All(
-                cv.ensure_list(
-                    {
-                        cv.GenerateID(): cv.declare_id(DisplayPage),
-                        cv.Required(CONF_LAMBDA): cv.lambda_,
-                    }
-                ),
-                cv.Length(min=1),
-            ),
-            cv.Optional(CONF_ON_PAGE_CHANGE): automation.validate_automation(
+FULL_DISPLAY_SCHEMA = BASIC_DISPLAY_SCHEMA.extend(
+    {
+        cv.Optional(CONF_ROTATION): validate_rotation,
+        cv.Exclusive(CONF_PAGES, CONF_LAMBDA): cv.All(
+            cv.ensure_list(
                 {
-                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
-                        DisplayOnPageChangeTrigger
-                    ),
-                    cv.Optional(CONF_FROM): cv.use_id(DisplayPage),
-                    cv.Optional(CONF_TO): cv.use_id(DisplayPage),
+                    cv.GenerateID(): cv.declare_id(DisplayPage),
+                    cv.Required(CONF_LAMBDA): cv.lambda_,
                 }
             ),
-            cv.Optional(
-                CONF_AUTO_CLEAR_ENABLED, default=CONF_UNSPECIFIED
-            ): validate_auto_clear,
-            cv.Optional(CONF_SHOW_TEST_CARD): cv.boolean,
-        }
-    )
-    schema.add_extra(_validate_test_card)
-    return schema
-
-
-BASIC_DISPLAY_SCHEMA = basic_display_schema("1s")
-FULL_DISPLAY_SCHEMA = full_display_schema("1s")
+            cv.Length(min=1),
+        ),
+        cv.Optional(CONF_ON_PAGE_CHANGE): automation.validate_automation(
+            {
+                cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
+                    DisplayOnPageChangeTrigger
+                ),
+                cv.Optional(CONF_FROM): cv.use_id(DisplayPage),
+                cv.Optional(CONF_TO): cv.use_id(DisplayPage),
+            }
+        ),
+        cv.Optional(
+            CONF_AUTO_CLEAR_ENABLED, default=CONF_UNSPECIFIED
+        ): validate_auto_clear,
+        cv.Optional(CONF_SHOW_TEST_CARD): cv.boolean,
+    }
+)
+FULL_DISPLAY_SCHEMA.add_extra(_validate_test_card)
 
 
 async def setup_display_core_(var, config):

esphome/components/epaper_spi/display.py

@@ -31,7 +31,6 @@ from esphome.const import (
     CONF_TRANSFORM,
     CONF_UPDATE_INTERVAL,
     CONF_WIDTH,
-    SCHEDULER_DONT_RUN,
 )
 from esphome.cpp_generator import RawExpression
 from esphome.final_validate import full_config
@@ -73,10 +72,12 @@ TRANSFORM_OPTIONS = {CONF_MIRROR_X, CONF_MIRROR_Y, CONF_SWAP_XY}
 def model_schema(config):
     model = MODELS[config[CONF_MODEL]]
     class_name = epaper_spi_ns.class_(model.class_name, EPaperBase)
+    minimum_update_interval = update_interval(
+        model.get_default(CONF_MINIMUM_UPDATE_INTERVAL, "1s")
+    )
     cv_dimensions = cv.Optional if model.get_default(CONF_WIDTH) else cv.Required
     return (
-        display.full_display_schema("60s")
-        .extend(
+        display.FULL_DISPLAY_SCHEMA.extend(
             spi.spi_device_schema(
                 cs_pin_required=False,
                 default_mode="MODE0",
@@ -93,6 +94,9 @@ def model_schema(config):
             {
                 cv.Optional(CONF_ROTATION, default=0): validate_rotation,
                 cv.Required(CONF_MODEL): cv.one_of(model.name, upper=True),
+                cv.Optional(CONF_UPDATE_INTERVAL, default=cv.UNDEFINED): cv.All(
+                    update_interval, cv.Range(min=minimum_update_interval)
+                ),
                 cv.Optional(CONF_TRANSFORM): cv.Schema(
                     {
                         cv.Required(CONF_MIRROR_X): cv.boolean,
@@ -146,22 +150,15 @@ def _final_validate(config):
     global_config = full_config.get()
     from esphome.components.lvgl import DOMAIN as LVGL_DOMAIN
 
-    # If no drawing methods are configured, and LVGL is not enabled, show a test card
-    if (
-        CONF_LAMBDA not in config
-        and CONF_PAGES not in config
-        and LVGL_DOMAIN not in global_config
-    ):
-        config[CONF_SHOW_TEST_CARD] = True
-
-    interval = config[CONF_UPDATE_INTERVAL]
-    if interval != SCHEDULER_DONT_RUN:
-        model = MODELS[config[CONF_MODEL]]
-        minimum = update_interval(model.get_default(CONF_MINIMUM_UPDATE_INTERVAL, "1s"))
-        if interval < minimum:
-            raise cv.Invalid(
-                f"update_interval must be at least {minimum} for {model.name}, got {interval}"
-            )
+    if CONF_LAMBDA not in config and CONF_PAGES not in config:
+        if LVGL_DOMAIN in global_config:
+            if CONF_UPDATE_INTERVAL not in config:
+                config[CONF_UPDATE_INTERVAL] = update_interval("never")
+        else:
+            # If no drawing methods are configured, and LVGL is not enabled, show a test card
+            config[CONF_SHOW_TEST_CARD] = True
+    elif CONF_UPDATE_INTERVAL not in config:
+        config[CONF_UPDATE_INTERVAL] = update_interval("1min")
     return config
 
 

esphome/components/esp32/__init__.py

@@ -606,9 +606,6 @@ CONF_LOOP_TASK_STACK_SIZE = "loop_task_stack_size"
 KEY_VFS_SELECT_REQUIRED = "vfs_select_required"
 KEY_VFS_DIR_REQUIRED = "vfs_dir_required"
 
-# Ring buffer IRAM requirement tracking
-KEY_RINGBUF_IN_IRAM = "ringbuf_in_iram"
-
 
 def require_vfs_select() -> None:
     """Mark that VFS select support is required by a component.
@@ -628,17 +625,6 @@ def require_vfs_dir() -> None:
     CORE.data[KEY_VFS_DIR_REQUIRED] = True
 
 
-def enable_ringbuf_in_iram() -> None:
-    """Keep ring buffer functions in IRAM instead of moving them to flash.
-
-    Call this from components that use esphome/core/ring_buffer.cpp and need
-    the ring buffer functions to remain in IRAM for performance reasons
-    (e.g., voice assistants, audio components).
-    This prevents CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH from being enabled.
-    """
-    CORE.data[KEY_RINGBUF_IN_IRAM] = True
-
-
 def _parse_idf_component(value: str) -> ConfigType:
     """Parse IDF component shorthand syntax like 'owner/component^version'"""
     # Match operator followed by version-like string (digit or *)
@@ -1041,18 +1027,14 @@ async def to_code(config):
         add_idf_sdkconfig_option("CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH", True)
 
     # Place ring buffer functions into flash instead of IRAM by default
-    # This saves IRAM but may impact performance for audio/voice components.
-    # Components that need ring buffer in IRAM call enable_ringbuf_in_iram().
-    # Users can also set ringbuf_in_iram: true to force IRAM placement.
-    # In ESP-IDF 6.0 flash placement becomes the default.
-    if conf[CONF_ADVANCED][CONF_RINGBUF_IN_IRAM] or CORE.data.get(
-        KEY_RINGBUF_IN_IRAM, False
-    ):
-        # User config or component requires ring buffer in IRAM for performance
+    # This saves IRAM. In ESP-IDF 6.0 flash placement becomes the default.
+    # Users can set ringbuf_in_iram: true as an escape hatch if they encounter issues.
+    if conf[CONF_ADVANCED][CONF_RINGBUF_IN_IRAM]:
+        # User requests ring buffer in IRAM
         # IDF 6.0+: will need CONFIG_RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH=n
         add_idf_sdkconfig_option("CONFIG_RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH", False)
     else:
-        # No component needs it - place in flash to save IRAM
+        # Place in flash to save IRAM (default)
         add_idf_sdkconfig_option("CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH", True)
 
     # Setup watchdog

esphome/components/esp32/gpio.cpp

@@ -85,6 +85,7 @@ void ESP32InternalGPIOPin::attach_interrupt(void (*func)(void *), void *arg, gpi
       break;
   }
   gpio_set_intr_type(this->get_pin_num(), idf_type);
+  gpio_intr_enable(this->get_pin_num());
   if (!isr_service_installed) {
     auto res = gpio_install_isr_service(ESP_INTR_FLAG_LEVEL3);
     if (res != ESP_OK) {
@@ -94,7 +95,6 @@ void ESP32InternalGPIOPin::attach_interrupt(void (*func)(void *), void *arg, gpi
     isr_service_installed = true;
   }
   gpio_isr_handler_add(this->get_pin_num(), func, arg);
-  gpio_intr_enable(this->get_pin_num());
 }
 
 std::string ESP32InternalGPIOPin::dump_summary() const {

esphome/components/esp32_ble/ble.cpp

@@ -24,7 +24,9 @@ extern "C" {
 #include <nvs_flash.h>
 
 #ifdef USE_ARDUINO
-#include <esp32-hal-bt.h>
+// Prevent Arduino from releasing BT memory at startup (esp32-hal-misc.c).
+// Without this, esp_bt_controller_init() fails with ESP_ERR_INVALID_STATE.
+extern "C" bool btInUse() { return true; }  // NOLINT(readability-identifier-naming)
 #endif
 
 namespace esphome::esp32_ble {
@@ -96,10 +98,6 @@ void ESP32BLE::advertising_set_service_data(const std::vector<uint8_t> &data) {
 }
 
 void ESP32BLE::advertising_set_manufacturer_data(const std::vector<uint8_t> &data) {
-  this->advertising_set_manufacturer_data(std::span<const uint8_t>(data));
-}
-
-void ESP32BLE::advertising_set_manufacturer_data(std::span<const uint8_t> data) {
   this->advertising_init_();
   this->advertising_->set_manufacturer_data(data);
   this->advertising_start();
@@ -169,12 +167,6 @@ void ESP32BLE::advertising_init_() {
 bool ESP32BLE::ble_setup_() {
   esp_err_t err;
 #ifndef CONFIG_ESP_HOSTED_ENABLE_BT_BLUEDROID
-#ifdef USE_ARDUINO
-  if (!btStart()) {
-    ESP_LOGE(TAG, "btStart failed: %d", esp_bt_controller_get_status());
-    return false;
-  }
-#else
   if (esp_bt_controller_get_status() != ESP_BT_CONTROLLER_STATUS_ENABLED) {
     // start bt controller
     if (esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_IDLE) {
@@ -199,7 +191,6 @@ bool ESP32BLE::ble_setup_() {
       return false;
     }
   }
-#endif
 
   esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);
 #else
@@ -338,12 +329,6 @@ bool ESP32BLE::ble_dismantle_() {
   }
 
 #ifndef CONFIG_ESP_HOSTED_ENABLE_BT_BLUEDROID
-#ifdef USE_ARDUINO
-  if (!btStop()) {
-    ESP_LOGE(TAG, "btStop failed: %d", esp_bt_controller_get_status());
-    return false;
-  }
-#else
   if (esp_bt_controller_get_status() != ESP_BT_CONTROLLER_STATUS_IDLE) {
     // stop bt controller
     if (esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED) {
@@ -367,7 +352,6 @@ bool ESP32BLE::ble_dismantle_() {
       return false;
     }
   }
-#endif
 #else
   if (esp_hosted_bt_controller_disable() != ESP_OK) {
     ESP_LOGW(TAG, "esp_hosted_bt_controller_disable failed");

esphome/components/esp32_ble/ble.h

@@ -118,7 +118,6 @@ class ESP32BLE : public Component {
   void advertising_start();
   void advertising_set_service_data(const std::vector<uint8_t> &data);
   void advertising_set_manufacturer_data(const std::vector<uint8_t> &data);
-  void advertising_set_manufacturer_data(std::span<const uint8_t> data);
   void advertising_set_appearance(uint16_t appearance) { this->appearance_ = appearance; }
   void advertising_set_service_data_and_name(std::span<const uint8_t> data, bool include_name);
   void advertising_add_service_uuid(ESPBTUUID uuid);

esphome/components/esp32_ble/ble_advertising.cpp

@@ -59,10 +59,6 @@ void BLEAdvertising::set_service_data(const std::vector<uint8_t> &data) {
 }
 
 void BLEAdvertising::set_manufacturer_data(const std::vector<uint8_t> &data) {
-  this->set_manufacturer_data(std::span<const uint8_t>(data));
-}
-
-void BLEAdvertising::set_manufacturer_data(std::span<const uint8_t> data) {
   delete[] this->advertising_data_.p_manufacturer_data;
   this->advertising_data_.p_manufacturer_data = nullptr;
   this->advertising_data_.manufacturer_len = data.size();

esphome/components/esp32_ble/ble_advertising.h

@@ -37,7 +37,6 @@ class BLEAdvertising {
   void set_scan_response(bool scan_response) { this->scan_response_ = scan_response; }
   void set_min_preferred_interval(uint16_t interval) { this->advertising_data_.min_interval = interval; }
   void set_manufacturer_data(const std::vector<uint8_t> &data);
-  void set_manufacturer_data(std::span<const uint8_t> data);
   void set_appearance(uint16_t appearance) { this->advertising_data_.appearance = appearance; }
   void set_service_data(const std::vector<uint8_t> &data);
   void set_service_data(std::span<const uint8_t> data);

esphome/components/esp32_ble_beacon/esp32_ble_beacon.cpp

@@ -1,6 +1,5 @@
 #include "esp32_ble_beacon.h"
 #include "esphome/core/log.h"
-#include "esphome/core/helpers.h"
 
 #ifdef USE_ESP32
 

esphome/components/esp32_ble_server/ble_server_automations.cpp

@@ -15,10 +15,7 @@ Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_characteristic_on_w
   Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger =  // NOLINT(cppcoreguidelines-owning-memory)
       new Trigger<std::vector<uint8_t>, uint16_t>();
   characteristic->on_write([on_write_trigger](std::span<const uint8_t> data, uint16_t id) {
-    // Convert span to vector for trigger - copy is necessary because:
-    // 1. Trigger stores the data for use in automation actions that execute later
-    // 2. The span is only valid during this callback (points to temporary BLE stack data)
-    // 3. User lambdas in automations need persistent data they can access asynchronously
+    // Convert span to vector for trigger
     on_write_trigger->trigger(std::vector<uint8_t>(data.begin(), data.end()), id);
   });
   return on_write_trigger;
@@ -30,10 +27,7 @@ Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_descriptor_on_write
   Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger =  // NOLINT(cppcoreguidelines-owning-memory)
       new Trigger<std::vector<uint8_t>, uint16_t>();
   descriptor->on_write([on_write_trigger](std::span<const uint8_t> data, uint16_t id) {
-    // Convert span to vector for trigger - copy is necessary because:
-    // 1. Trigger stores the data for use in automation actions that execute later
-    // 2. The span is only valid during this callback (points to temporary BLE stack data)
-    // 3. User lambdas in automations need persistent data they can access asynchronously
+    // Convert span to vector for trigger
     on_write_trigger->trigger(std::vector<uint8_t>(data.begin(), data.end()), id);
   });
   return on_write_trigger;

esphome/components/esp_ldo/__init__.py

@@ -31,7 +31,7 @@ CONFIG_SCHEMA = cv.All(
             }
         )
     ),
-    cv.only_with_esp_idf,
+    cv.only_on_esp32,
     only_on_variant(supported=[VARIANT_ESP32P4]),
 )
 

esphome/components/esphome/ota/ota_esphome.cpp

@@ -1,13 +1,8 @@
 #include "ota_esphome.h"
 #ifdef USE_OTA
 #ifdef USE_OTA_PASSWORD
-#ifdef USE_OTA_MD5
-#include "esphome/components/md5/md5.h"
-#endif
-#ifdef USE_OTA_SHA256
 #include "esphome/components/sha256/sha256.h"
 #endif
-#endif
 #include "esphome/components/network/util.h"
 #include "esphome/components/ota/ota_backend.h"
 #include "esphome/components/ota/ota_backend_esp8266.h"
@@ -31,15 +26,6 @@ static constexpr size_t OTA_BUFFER_SIZE = 1024;                  // buffer size
 static constexpr uint32_t OTA_SOCKET_TIMEOUT_HANDSHAKE = 20000;  // milliseconds for initial handshake
 static constexpr uint32_t OTA_SOCKET_TIMEOUT_DATA = 90000;       // milliseconds for data transfer
 
-#ifdef USE_OTA_PASSWORD
-#ifdef USE_OTA_MD5
-static constexpr size_t MD5_HEX_SIZE = 32;  // MD5 hash as hex string (16 bytes * 2)
-#endif
-#ifdef USE_OTA_SHA256
-static constexpr size_t SHA256_HEX_SIZE = 64;  // SHA256 hash as hex string (32 bytes * 2)
-#endif
-#endif  // USE_OTA_PASSWORD
-
 void ESPHomeOTAComponent::setup() {
   this->server_ = socket::socket_ip_loop_monitored(SOCK_STREAM, 0);  // monitored for incoming connections
   if (this->server_ == nullptr) {

esphome/components/fan/fan.cpp

@@ -71,7 +71,7 @@ void FanCall::validate_() {
   auto traits = this->parent_.get_traits();
 
   if (this->speed_.has_value()) {
-    this->speed_ = clamp(*this->speed_, 1, static_cast<int>(traits.supported_speed_count()));
+    this->speed_ = clamp(*this->speed_, 1, traits.supported_speed_count());
 
     // https://developers.home-assistant.io/docs/core/entity/fan/#preset-modes
     // "Manually setting a speed must disable any set preset mode"

esphome/components/fan/fan_traits.h

@@ -11,7 +11,7 @@ namespace fan {
 class FanTraits {
  public:
   FanTraits() = default;
-  FanTraits(bool oscillation, bool speed, bool direction, uint8_t speed_count)
+  FanTraits(bool oscillation, bool speed, bool direction, int speed_count)
       : oscillation_(oscillation), speed_(speed), direction_(direction), speed_count_(speed_count) {}
 
   /// Return if this fan supports oscillation.
@@ -23,9 +23,9 @@ class FanTraits {
   /// Set whether this fan supports speed levels.
   void set_speed(bool speed) { this->speed_ = speed; }
   /// Return how many speed levels the fan has
-  uint8_t supported_speed_count() const { return this->speed_count_; }
+  int supported_speed_count() const { return this->speed_count_; }
   /// Set how many speed levels this fan has.
-  void set_supported_speed_count(uint8_t speed_count) { this->speed_count_ = speed_count; }
+  void set_supported_speed_count(int speed_count) { this->speed_count_ = speed_count; }
   /// Return if this fan supports changing direction
   bool supports_direction() const { return this->direction_; }
   /// Set whether this fan supports changing direction
@@ -64,7 +64,7 @@ class FanTraits {
   bool oscillation_{false};
   bool speed_{false};
   bool direction_{false};
-  uint8_t speed_count_{};
+  int speed_count_{};
   std::vector<const char *> preset_modes_{};
 };
 

esphome/components/hbridge/fan/__init__.py

@@ -39,7 +39,7 @@ CONFIG_SCHEMA = (
             cv.Optional(CONF_DECAY_MODE, default="SLOW"): cv.enum(
                 DECAY_MODE_OPTIONS, upper=True
             ),
-            cv.Optional(CONF_SPEED_COUNT, default=100): cv.int_range(min=1, max=255),
+            cv.Optional(CONF_SPEED_COUNT, default=100): cv.int_range(min=1),
             cv.Optional(CONF_ENABLE_PIN): cv.use_id(output.FloatOutput),
             cv.Optional(CONF_PRESET_MODES): validate_preset_modes,
         }

esphome/components/hbridge/fan/hbridge_fan.h

@@ -15,7 +15,7 @@ enum DecayMode {
 
 class HBridgeFan : public Component, public fan::Fan {
  public:
-  HBridgeFan(uint8_t speed_count, DecayMode decay_mode) : speed_count_(speed_count), decay_mode_(decay_mode) {}
+  HBridgeFan(int speed_count, DecayMode decay_mode) : speed_count_(speed_count), decay_mode_(decay_mode) {}
 
   void set_pin_a(output::FloatOutput *pin_a) { pin_a_ = pin_a; }
   void set_pin_b(output::FloatOutput *pin_b) { pin_b_ = pin_b; }
@@ -33,7 +33,7 @@ class HBridgeFan : public Component, public fan::Fan {
   output::FloatOutput *pin_b_;
   output::FloatOutput *enable_{nullptr};
   output::BinaryOutput *oscillating_{nullptr};
-  uint8_t speed_count_{};
+  int speed_count_{};
   DecayMode decay_mode_{DECAY_MODE_SLOW};
   fan::FanTraits traits_;
   std::vector<const char *> preset_modes_{};

esphome/components/i2c/i2c_bus_esp_idf.cpp

@@ -116,7 +116,7 @@ void IDFI2CBus::dump_config() {
         if (s.second) {
           ESP_LOGCONFIG(TAG, "Found device at address 0x%02X", s.first);
         } else {
-          ESP_LOGCONFIG(TAG, "Unknown error at address 0x%02X", s.first);
+          ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
         }
       }
     }

esphome/components/i2s_audio/__init__.py

@@ -1,11 +1,6 @@
 from esphome import pins
 import esphome.codegen as cg
 from esphome.components.esp32 import (
-    add_idf_sdkconfig_option,
-    enable_ringbuf_in_iram,
-    get_esp32_variant,
-)
-from esphome.components.esp32.const import (
     VARIANT_ESP32,
     VARIANT_ESP32C3,
     VARIANT_ESP32C5,
@@ -15,6 +10,8 @@ from esphome.components.esp32.const import (
     VARIANT_ESP32P4,
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
+    add_idf_sdkconfig_option,
+    get_esp32_variant,
 )
 import esphome.config_validation as cv
 from esphome.const import CONF_BITS_PER_SAMPLE, CONF_CHANNEL, CONF_ID, CONF_SAMPLE_RATE
@@ -281,9 +278,6 @@ async def to_code(config):
     # Helps avoid callbacks being skipped due to processor load
     add_idf_sdkconfig_option("CONFIG_I2S_ISR_IRAM_SAFE", True)
 
-    # Keep ring buffer functions in IRAM for audio performance
-    enable_ringbuf_in_iram()
-
     cg.add(var.set_lrclk_pin(config[CONF_I2S_LRCLK_PIN]))
     if CONF_I2S_BCLK_PIN in config:
         cg.add(var.set_bclk_pin(config[CONF_I2S_BCLK_PIN]))

esphome/components/mcp23016/mcp23016.cpp

@@ -56,7 +56,7 @@ void MCP23016::pin_mode(uint8_t pin, gpio::Flags flags) {
     this->update_reg_(pin, false, iodir);
   }
 }
-float MCP23016::get_setup_priority() const { return setup_priority::IO; }
+float MCP23016::get_setup_priority() const { return setup_priority::HARDWARE; }
 bool MCP23016::read_reg_(uint8_t reg, uint8_t *value) {
   if (this->is_failed())
     return false;

esphome/components/micro_wake_word/__init__.py

@@ -368,7 +368,7 @@ CONFIG_SCHEMA = cv.All(
             ),
         }
     ).extend(cv.COMPONENT_SCHEMA),
-    cv.only_with_esp_idf,
+    cv.only_on_esp32,
 )
 
 
@@ -448,9 +448,6 @@ async def to_code(config):
     # The inference task queues detection events that need immediate processing
     socket.require_wake_loop_threadsafe()
 
-    # Keep ring buffer functions in IRAM for audio performance
-    esp32.enable_ringbuf_in_iram()
-
     mic_source = await microphone.microphone_source_to_code(config[CONF_MICROPHONE])
     cg.add(var.set_microphone_source(mic_source))
 

esphome/components/micro_wake_word/automation.h

@@ -3,7 +3,7 @@
 #include "micro_wake_word.h"
 #include "streaming_model.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 namespace esphome {
 namespace micro_wake_word {
 

esphome/components/micro_wake_word/micro_wake_word.cpp

@@ -1,6 +1,6 @@
 #include "micro_wake_word.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/application.h"
 #include "esphome/core/hal.h"
@@ -473,4 +473,4 @@ bool MicroWakeWord::update_model_probabilities_(const int8_t audio_features[PREP
 }  // namespace micro_wake_word
 }  // namespace esphome
 
-#endif  // USE_ESP_IDF
+#endif  // USE_ESP32

esphome/components/micro_wake_word/micro_wake_word.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "preprocessor_settings.h"
 #include "streaming_model.h"
@@ -140,4 +140,4 @@ class MicroWakeWord : public Component
 }  // namespace micro_wake_word
 }  // namespace esphome
 
-#endif  // USE_ESP_IDF
+#endif  // USE_ESP32

esphome/components/micro_wake_word/preprocessor_settings.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include <cstdint>
 

esphome/components/micro_wake_word/streaming_model.cpp

@@ -1,6 +1,6 @@
 #include "streaming_model.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"

esphome/components/micro_wake_word/streaming_model.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "preprocessor_settings.h"
 

esphome/components/mipi_dsi/display.py

@@ -165,8 +165,8 @@ def model_schema(config):
     )
     return cv.All(
         schema,
+        cv.only_on_esp32,
         only_on_variant(supported=[VARIANT_ESP32P4]),
-        cv.only_with_esp_idf,
     )
 
 

esphome/components/mipi_rgb/display.py

@@ -224,8 +224,8 @@ def _config_schema(config):
     schema = model_schema(config)
     return cv.All(
         schema,
+        cv.only_on_esp32,
         only_on_variant(supported=[VARIANT_ESP32S3]),
-        cv.only_with_esp_idf,
     )(config)
 
 

esphome/components/mipi_spi/display.py

@@ -224,7 +224,7 @@ def model_schema(config):
             }
         )
     if bus_mode != TYPE_SINGLE:
-        return cv.All(schema, cv.only_with_esp_idf)
+        return cv.All(schema, cv.only_on_esp32)
     return schema
 
 

esphome/components/mixer/speaker/__init__.py

@@ -93,9 +93,7 @@ CONFIG_SCHEMA = cv.All(
             ),
             cv.Optional(CONF_NUM_CHANNELS): cv.int_range(min=1, max=2),
             cv.Optional(CONF_QUEUE_MODE, default=False): cv.boolean,
-            cv.SplitDefault(CONF_TASK_STACK_IN_PSRAM, esp32_idf=False): cv.All(
-                cv.boolean, cv.only_with_esp_idf
-            ),
+            cv.Optional(CONF_TASK_STACK_IN_PSRAM, default=False): cv.boolean,
         }
     ),
     cv.only_on([PLATFORM_ESP32]),

esphome/components/mqtt/mqtt_backend_esp32.cpp

@@ -232,16 +232,6 @@ void MQTTBackendESP32::esphome_mqtt_task(void *params) {
       this_mqtt->mqtt_event_pool_.release(elem);
     }
   }
-
-  // Clean up any remaining items in the queue
-  struct QueueElement *elem;
-  while ((elem = this_mqtt->mqtt_queue_.pop()) != nullptr) {
-    this_mqtt->mqtt_event_pool_.release(elem);
-  }
-
-  // Note: EventPool destructor will clean up the pool itself
-  // Task will delete itself
-  vTaskDelete(nullptr);
 }
 
 bool MQTTBackendESP32::enqueue_(MqttQueueTypeT type, const char *topic, int qos, bool retain, const char *payload,

esphome/components/network/ip_address.h

@@ -8,7 +8,7 @@
 #include "esphome/core/helpers.h"
 #include "esphome/core/macros.h"
 
-#if defined(USE_ESP_IDF) || defined(USE_LIBRETINY) || USE_ARDUINO_VERSION_CODE > VERSION_CODE(3, 0, 0)
+#if defined(USE_ESP32) || defined(USE_LIBRETINY) || USE_ARDUINO_VERSION_CODE > VERSION_CODE(3, 0, 0)
 #include <lwip/ip_addr.h>
 #endif
 

esphome/components/openthread/__init__.py

@@ -152,7 +152,6 @@ CONFIG_SCHEMA = cv.All(
         }
     ).extend(_CONNECTION_SCHEMA),
     cv.has_exactly_one_key(CONF_NETWORK_KEY, CONF_TLV),
-    cv.only_with_esp_idf,
     only_on_variant(supported=[VARIANT_ESP32C5, VARIANT_ESP32C6, VARIANT_ESP32H2]),
     _validate,
     _require_vfs_select,

esphome/components/openthread/openthread_esp.cpp

@@ -1,5 +1,5 @@
 #include "esphome/core/defines.h"
-#if defined(USE_OPENTHREAD) && defined(USE_ESP_IDF)
+#if defined(USE_OPENTHREAD) && defined(USE_ESP32)
 #include <openthread/logging.h>
 #include "openthread.h"
 

esphome/components/qspi_dbi/display.py

@@ -154,7 +154,7 @@ CONFIG_SCHEMA = cv.All(
         upper=True,
         key=CONF_MODEL,
     ),
-    cv.only_with_esp_idf,
+    cv.only_on_esp32,
 )
 
 

esphome/components/qspi_dbi/qspi_dbi.cpp

@@ -1,4 +1,4 @@
-#if defined(USE_ESP_IDF) && defined(USE_ESP32_VARIANT_ESP32S3)
+#if defined(USE_ESP32) && defined(USE_ESP32_VARIANT_ESP32S3)
 #include "qspi_dbi.h"
 #include "esphome/core/log.h"
 

esphome/components/qspi_dbi/qspi_dbi.h

@@ -3,7 +3,7 @@
 //
 #pragma once
 
-#if defined(USE_ESP_IDF) && defined(USE_ESP32_VARIANT_ESP32S3)
+#if defined(USE_ESP32) && defined(USE_ESP32_VARIANT_ESP32S3)
 #include "esphome/components/spi/spi.h"
 #include "esphome/components/display/display.h"
 #include "esphome/components/display/display_buffer.h"

esphome/components/rpi_dpi_rgb/display.py

@@ -122,7 +122,6 @@ CONFIG_SCHEMA = cv.All(
         )
     ),
     only_on_variant(supported=[VARIANT_ESP32S3]),
-    cv.only_with_esp_idf,
 )
 
 

esphome/components/select/select.h

@@ -77,21 +77,23 @@ class Select : public EntityBase {
 
   void add_on_state_callback(std::function<void(size_t)> &&callback);
 
-  /** Set the value of the select by index, this is an optional virtual method.
-   *
-   * This method is called by the SelectCall when the index is already known.
-   * Default implementation converts to string and calls control().
-   * Override this to work directly with indices and avoid string conversions.
-   *
-   * @param index The index as validated by the SelectCall.
-   */
-  virtual void control(size_t index) { this->control(this->option_at(index)); }
-
  protected:
   friend class SelectCall;
 
   size_t active_index_{0};
 
+  /** Set the value of the select by index, this is an optional virtual method.
+   *
+   * IMPORTANT: At least ONE of the two control() methods must be overridden by derived classes.
+   * Overriding this index-based version is PREFERRED as it avoids string conversions.
+   *
+   * This method is called by the SelectCall when the index is already known.
+   * Default implementation converts to string and calls control(const std::string&).
+   *
+   * @param index The index as validated by the SelectCall.
+   */
+  virtual void control(size_t index) { this->control(this->option_at(index)); }
+
   /** Set the value of the select, this is a virtual method that each select integration can implement.
    *
    * IMPORTANT: At least ONE of the two control() methods must be overridden by derived classes.

esphome/components/socket/bsd_sockets_impl.cpp

@@ -14,34 +14,27 @@
 
 namespace esphome::socket {
 
-// Format sockaddr into caller-provided buffer, returns length written (excluding null)
-size_t format_sockaddr_to(const struct sockaddr_storage &storage, std::span<char, PEERNAME_MAX_LEN> buf) {
+std::string format_sockaddr(const struct sockaddr_storage &storage) {
   if (storage.ss_family == AF_INET) {
     const struct sockaddr_in *addr = reinterpret_cast<const struct sockaddr_in *>(&storage);
-    if (inet_ntop(AF_INET, &addr->sin_addr, buf.data(), buf.size()) != nullptr)
-      return strlen(buf.data());
+    char buf[INET_ADDRSTRLEN];
+    if (inet_ntop(AF_INET, &addr->sin_addr, buf, sizeof(buf)) != nullptr)
+      return std::string{buf};
   }
 #if LWIP_IPV6
   else if (storage.ss_family == AF_INET6) {
     const struct sockaddr_in6 *addr = reinterpret_cast<const struct sockaddr_in6 *>(&storage);
+    char buf[INET6_ADDRSTRLEN];
     // Format IPv4-mapped IPv6 addresses as regular IPv4 addresses
     if (addr->sin6_addr.un.u32_addr[0] == 0 && addr->sin6_addr.un.u32_addr[1] == 0 &&
         addr->sin6_addr.un.u32_addr[2] == htonl(0xFFFF) &&
-        inet_ntop(AF_INET, &addr->sin6_addr.un.u32_addr[3], buf.data(), buf.size()) != nullptr) {
-      return strlen(buf.data());
+        inet_ntop(AF_INET, &addr->sin6_addr.un.u32_addr[3], buf, sizeof(buf)) != nullptr) {
+      return std::string{buf};
     }
-    if (inet_ntop(AF_INET6, &addr->sin6_addr, buf.data(), buf.size()) != nullptr)
-      return strlen(buf.data());
+    if (inet_ntop(AF_INET6, &addr->sin6_addr, buf, sizeof(buf)) != nullptr)
+      return std::string{buf};
   }
 #endif
-  buf[0] = '\0';
-  return 0;
-}
-
-std::string format_sockaddr(const struct sockaddr_storage &storage) {
-  char buf[PEERNAME_MAX_LEN];
-  if (format_sockaddr_to(storage, buf) > 0)
-    return std::string{buf};
   return {};
 }
 
@@ -107,15 +100,6 @@ class BSDSocketImpl : public Socket {
       return {};
     return format_sockaddr(storage);
   }
-  size_t getpeername_to(std::span<char, PEERNAME_MAX_LEN> buf) override {
-    struct sockaddr_storage storage;
-    socklen_t len = sizeof(storage);
-    if (::getpeername(this->fd_, (struct sockaddr *) &storage, &len) != 0) {
-      buf[0] = '\0';
-      return 0;
-    }
-    return format_sockaddr_to(storage, buf);
-  }
   int getsockname(struct sockaddr *addr, socklen_t *addrlen) override {
     return ::getsockname(this->fd_, addr, addrlen);
   }

esphome/components/socket/lwip_raw_tcp_impl.cpp

@@ -196,14 +196,6 @@ class LWIPRawImpl : public Socket {
     }
     return this->format_ip_address_(pcb_->remote_ip);
   }
-  size_t getpeername_to(std::span<char, PEERNAME_MAX_LEN> buf) override {
-    if (pcb_ == nullptr) {
-      errno = ECONNRESET;
-      buf[0] = '\0';
-      return 0;
-    }
-    return this->format_ip_address_to_(pcb_->remote_ip, buf);
-  }
   int getsockname(struct sockaddr *name, socklen_t *addrlen) override {
     if (pcb_ == nullptr) {
       errno = ECONNRESET;
@@ -525,27 +517,17 @@ class LWIPRawImpl : public Socket {
   }
 
  protected:
-  // Format IP address into caller-provided buffer, returns length written (excluding null)
-  size_t format_ip_address_to_(const ip_addr_t &ip, std::span<char, PEERNAME_MAX_LEN> buf) {
+  std::string format_ip_address_(const ip_addr_t &ip) {
+    char buffer[50] = {};
     if (IP_IS_V4_VAL(ip)) {
-      inet_ntoa_r(ip, buf.data(), buf.size());
-      return strlen(buf.data());
+      inet_ntoa_r(ip, buffer, sizeof(buffer));
     }
 #if LWIP_IPV6
     else if (IP_IS_V6_VAL(ip)) {
-      inet6_ntoa_r(ip, buf.data(), buf.size());
-      return strlen(buf.data());
+      inet6_ntoa_r(ip, buffer, sizeof(buffer));
     }
 #endif
-    buf[0] = '\0';
-    return 0;
-  }
-
-  std::string format_ip_address_(const ip_addr_t &ip) {
-    char buffer[PEERNAME_MAX_LEN];
-    if (format_ip_address_to_(ip, buffer) > 0)
-      return std::string(buffer);
-    return {};
+    return std::string(buffer);
   }
 
   int ip2sockaddr_(ip_addr_t *ip, uint16_t port, struct sockaddr *name, socklen_t *addrlen) {

esphome/components/socket/lwip_sockets_impl.cpp

@@ -9,36 +9,25 @@
 
 namespace esphome::socket {
 
-// Format sockaddr into caller-provided buffer, returns length written (excluding null)
-size_t format_sockaddr_to(const struct sockaddr_storage &storage, std::span<char, PEERNAME_MAX_LEN> buf) {
+std::string format_sockaddr(const struct sockaddr_storage &storage) {
   if (storage.ss_family == AF_INET) {
     const struct sockaddr_in *addr = reinterpret_cast<const struct sockaddr_in *>(&storage);
-    const char *ret = lwip_inet_ntop(AF_INET, &addr->sin_addr, buf.data(), buf.size());
-    if (ret == nullptr) {
-      buf[0] = '\0';
-      return 0;
-    }
-    return strlen(buf.data());
+    char buf[INET_ADDRSTRLEN];
+    const char *ret = lwip_inet_ntop(AF_INET, &addr->sin_addr, buf, sizeof(buf));
+    if (ret == nullptr)
+      return {};
+    return std::string{buf};
   }
 #if LWIP_IPV6
   else if (storage.ss_family == AF_INET6) {
     const struct sockaddr_in6 *addr = reinterpret_cast<const struct sockaddr_in6 *>(&storage);
-    const char *ret = lwip_inet_ntop(AF_INET6, &addr->sin6_addr, buf.data(), buf.size());
-    if (ret == nullptr) {
-      buf[0] = '\0';
-      return 0;
-    }
-    return strlen(buf.data());
+    char buf[INET6_ADDRSTRLEN];
+    const char *ret = lwip_inet_ntop(AF_INET6, &addr->sin6_addr, buf, sizeof(buf));
+    if (ret == nullptr)
+      return {};
+    return std::string{buf};
   }
 #endif
-  buf[0] = '\0';
-  return 0;
-}
-
-std::string format_sockaddr(const struct sockaddr_storage &storage) {
-  char buf[PEERNAME_MAX_LEN];
-  if (format_sockaddr_to(storage, buf) > 0)
-    return std::string{buf};
   return {};
 }
 
@@ -106,15 +95,6 @@ class LwIPSocketImpl : public Socket {
       return {};
     return format_sockaddr(storage);
   }
-  size_t getpeername_to(std::span<char, PEERNAME_MAX_LEN> buf) override {
-    struct sockaddr_storage storage;
-    socklen_t len = sizeof(storage);
-    if (lwip_getpeername(this->fd_, (struct sockaddr *) &storage, &len) != 0) {
-      buf[0] = '\0';
-      return 0;
-    }
-    return format_sockaddr_to(storage, buf);
-  }
   int getsockname(struct sockaddr *addr, socklen_t *addrlen) override {
     return lwip_getsockname(this->fd_, addr, addrlen);
   }

esphome/components/socket/socket.h

@@ -1,6 +1,5 @@
 #pragma once
 #include <memory>
-#include <span>
 #include <string>
 
 #include "esphome/core/optional.h"
@@ -9,15 +8,6 @@
 #if defined(USE_SOCKET_IMPL_LWIP_TCP) || defined(USE_SOCKET_IMPL_LWIP_SOCKETS) || defined(USE_SOCKET_IMPL_BSD_SOCKETS)
 namespace esphome::socket {
 
-// Maximum length for peer name string (IP address without port)
-// IPv4: "255.255.255.255" = 15 chars + null = 16
-// IPv6: full address = 45 chars + null = 46
-#if LWIP_IPV6
-static constexpr size_t PEERNAME_MAX_LEN = 46;  // INET6_ADDRSTRLEN
-#else
-static constexpr size_t PEERNAME_MAX_LEN = 16;  // INET_ADDRSTRLEN
-#endif
-
 class Socket {
  public:
   Socket() = default;
@@ -42,9 +32,6 @@ class Socket {
 
   virtual int getpeername(struct sockaddr *addr, socklen_t *addrlen) = 0;
   virtual std::string getpeername() = 0;
-  /// Format peer address into a fixed-size buffer (no heap allocation)
-  /// Returns number of characters written (excluding null terminator), or 0 on error
-  virtual size_t getpeername_to(std::span<char, PEERNAME_MAX_LEN> buf) = 0;
   virtual int getsockname(struct sockaddr *addr, socklen_t *addrlen) = 0;
   virtual std::string getsockname() = 0;
   virtual int getsockopt(int level, int optname, void *optval, socklen_t *optlen) = 0;

esphome/components/speaker/media_player/__init__.py

@@ -315,7 +315,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_ON_VOLUME): automation.validate_automation(single=True),
         }
     ),
-    cv.only_with_esp_idf,
+    cv.only_on_esp32,
     _validate_repeated_speaker,
     _request_high_performance_networking,
 )

esphome/components/speaker/media_player/audio_pipeline.cpp

@@ -1,6 +1,6 @@
 #include "audio_pipeline.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/defines.h"
 #include "esphome/core/hal.h"

esphome/components/speaker/media_player/audio_pipeline.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/components/audio/audio.h"
 #include "esphome/components/audio/audio_reader.h"

esphome/components/speaker/media_player/automation.h

@@ -2,7 +2,7 @@
 
 #include "speaker_media_player.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/components/audio/audio.h"
 #include "esphome/core/automation.h"

esphome/components/speaker/media_player/speaker_media_player.cpp

@@ -1,6 +1,6 @@
 #include "speaker_media_player.h"
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/log.h"
 

esphome/components/speaker/media_player/speaker_media_player.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "audio_pipeline.h"
 

esphome/components/speed/fan/__init__.py

@@ -25,7 +25,7 @@ CONFIG_SCHEMA = (
             cv.Optional(CONF_SPEED): cv.invalid(
                 "Configuring individual speeds is deprecated."
             ),
-            cv.Optional(CONF_SPEED_COUNT, default=100): cv.int_range(min=1, max=255),
+            cv.Optional(CONF_SPEED_COUNT, default=100): cv.int_range(min=1),
             cv.Optional(CONF_PRESET_MODES): validate_preset_modes,
         }
     )

esphome/components/speed/fan/speed_fan.h

@@ -10,7 +10,7 @@ namespace speed {
 
 class SpeedFan : public Component, public fan::Fan {
  public:
-  SpeedFan(uint8_t speed_count) : speed_count_(speed_count) {}
+  SpeedFan(int speed_count) : speed_count_(speed_count) {}
   void setup() override;
   void dump_config() override;
   void set_output(output::FloatOutput *output) { this->output_ = output; }
@@ -26,7 +26,7 @@ class SpeedFan : public Component, public fan::Fan {
   output::FloatOutput *output_;
   output::BinaryOutput *oscillating_{nullptr};
   output::BinaryOutput *direction_{nullptr};
-  uint8_t speed_count_{};
+  int speed_count_{};
   fan::FanTraits traits_;
   std::vector<const char *> preset_modes_{};
 };

esphome/components/spi/__init__.py

@@ -311,7 +311,7 @@ def spi_mode_schema(mode):
     if mode == TYPE_SINGLE:
         return SPI_SINGLE_SCHEMA
     pin_count = 4 if mode == TYPE_QUAD else 8
-    onlys = [cv.only_on([PLATFORM_ESP32]), cv.only_with_esp_idf]
+    onlys = [cv.only_on([PLATFORM_ESP32])]
     if pin_count == 8:
         onlys.append(
             only_on_variant(
@@ -399,7 +399,7 @@ def spi_device_schema(
         cv.Optional(CONF_SPI_MODE, default=default_mode): cv.enum(
             SPI_MODE_OPTIONS, upper=True
         ),
-        cv.Optional(CONF_RELEASE_DEVICE): cv.All(cv.boolean, cv.only_with_esp_idf),
+        cv.Optional(CONF_RELEASE_DEVICE): cv.All(cv.boolean, cv.only_on_esp32),
     }
     if cs_pin_required:
         schema[cv.Required(CONF_CS_PIN)] = pins.gpio_output_pin_schema

esphome/components/st7701s/display.py

@@ -161,8 +161,8 @@ CONFIG_SCHEMA = cv.All(
             }
         ).extend(spi.spi_device_schema(cs_pin_required=False, default_data_rate=1e6))
     ),
+    cv.only_on_esp32,
     only_on_variant(supported=[VARIANT_ESP32S3]),
-    cv.only_with_esp_idf,
 )
 
 FINAL_VALIDATE_SCHEMA = spi.final_validate_device_schema(

esphome/components/template/fan/__init__.py

@@ -19,7 +19,7 @@ CONFIG_SCHEMA = (
         {
             cv.Optional(CONF_HAS_DIRECTION, default=False): cv.boolean,
             cv.Optional(CONF_HAS_OSCILLATING, default=False): cv.boolean,
-            cv.Optional(CONF_SPEED_COUNT): cv.int_range(min=1, max=255),
+            cv.Optional(CONF_SPEED_COUNT): cv.int_range(min=1),
             cv.Optional(CONF_PRESET_MODES): validate_preset_modes,
         }
     )

esphome/components/template/fan/template_fan.h

@@ -12,7 +12,7 @@ class TemplateFan final : public Component, public fan::Fan {
   void dump_config() override;
   void set_has_direction(bool has_direction) { this->has_direction_ = has_direction; }
   void set_has_oscillating(bool has_oscillating) { this->has_oscillating_ = has_oscillating; }
-  void set_speed_count(uint8_t count) { this->speed_count_ = count; }
+  void set_speed_count(int count) { this->speed_count_ = count; }
   void set_preset_modes(std::initializer_list<const char *> presets) { this->preset_modes_ = presets; }
   fan::FanTraits get_traits() override { return this->traits_; }
 
@@ -21,7 +21,7 @@ class TemplateFan final : public Component, public fan::Fan {
 
   bool has_oscillating_{false};
   bool has_direction_{false};
-  uint8_t speed_count_{0};
+  int speed_count_{0};
   fan::FanTraits traits_;
   std::vector<const char *> preset_modes_{};
 };

esphome/components/tuya/fan/__init__.py

@@ -22,7 +22,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_SPEED_DATAPOINT): cv.uint8_t,
             cv.Optional(CONF_SWITCH_DATAPOINT): cv.uint8_t,
             cv.Optional(CONF_DIRECTION_DATAPOINT): cv.uint8_t,
-            cv.Optional(CONF_SPEED_COUNT, default=3): cv.int_range(min=1, max=255),
+            cv.Optional(CONF_SPEED_COUNT, default=3): cv.int_range(min=1, max=256),
         }
     )
     .extend(cv.COMPONENT_SCHEMA),

esphome/components/tuya/fan/tuya_fan.h

@@ -9,7 +9,7 @@ namespace tuya {
 
 class TuyaFan : public Component, public fan::Fan {
  public:
-  TuyaFan(Tuya *parent, uint8_t speed_count) : parent_(parent), speed_count_(speed_count) {}
+  TuyaFan(Tuya *parent, int speed_count) : parent_(parent), speed_count_(speed_count) {}
   void setup() override;
   void dump_config() override;
   void set_speed_id(uint8_t speed_id) { this->speed_id_ = speed_id; }
@@ -27,7 +27,7 @@ class TuyaFan : public Component, public fan::Fan {
   optional<uint8_t> switch_id_{};
   optional<uint8_t> oscillation_id_{};
   optional<uint8_t> direction_id_{};
-  uint8_t speed_count_{};
+  int speed_count_{};
   TuyaDatapointType speed_type_{};
   TuyaDatapointType oscillation_type_{};
 };

esphome/components/usb_host/__init__.py

@@ -53,7 +53,6 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_DEVICES): cv.ensure_list(usb_device_schema()),
         }
     ),
-    cv.only_with_esp_idf,
     only_on_variant(supported=[VARIANT_ESP32S2, VARIANT_ESP32S3, VARIANT_ESP32P4]),
 )
 

esphome/components/voice_assistant/voice_assistant.cpp

@@ -272,8 +272,7 @@ void VoiceAssistant::loop() {
         size_t read_bytes = this->ring_buffer_->read((void *) this->send_buffer_, SEND_BUFFER_SIZE, 0);
         if (this->audio_mode_ == AUDIO_MODE_API) {
           api::VoiceAssistantAudio msg;
-          msg.data = this->send_buffer_;
-          msg.data_len = read_bytes;
+          msg.set_data(this->send_buffer_, read_bytes);
           this->api_client_->send_message(msg, api::VoiceAssistantAudio::MESSAGE_TYPE);
         } else {
           if (!this->udp_socket_running_) {
@@ -628,9 +627,9 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
       ESP_LOGD(TAG, "Assist Pipeline running");
 #ifdef USE_MEDIA_PLAYER
       this->started_streaming_tts_ = false;
-      for (const auto &arg : msg.data) {
+      for (auto arg : msg.data) {
         if (arg.name == "url") {
-          this->tts_response_url_ = arg.value;
+          this->tts_response_url_ = std::move(arg.value);
         }
       }
 #endif
@@ -649,9 +648,9 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
       break;
     case api::enums::VOICE_ASSISTANT_STT_END: {
       std::string text;
-      for (const auto &arg : msg.data) {
+      for (auto arg : msg.data) {
         if (arg.name == "text") {
-          text = arg.value;
+          text = std::move(arg.value);
         }
       }
       if (text.empty()) {
@@ -694,9 +693,9 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
       break;
     }
     case api::enums::VOICE_ASSISTANT_INTENT_END: {
-      for (const auto &arg : msg.data) {
+      for (auto arg : msg.data) {
         if (arg.name == "conversation_id") {
-          this->conversation_id_ = arg.value;
+          this->conversation_id_ = std::move(arg.value);
         } else if (arg.name == "continue_conversation") {
           this->continue_conversation_ = (arg.value == "1");
         }
@@ -706,9 +705,9 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
     }
     case api::enums::VOICE_ASSISTANT_TTS_START: {
       std::string text;
-      for (const auto &arg : msg.data) {
+      for (auto arg : msg.data) {
         if (arg.name == "text") {
-          text = arg.value;
+          text = std::move(arg.value);
         }
       }
       if (text.empty()) {
@@ -732,9 +731,9 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
     }
     case api::enums::VOICE_ASSISTANT_TTS_END: {
       std::string url;
-      for (const auto &arg : msg.data) {
+      for (auto arg : msg.data) {
         if (arg.name == "url") {
-          url = arg.value;
+          url = std::move(arg.value);
         }
       }
       if (url.empty()) {
@@ -779,11 +778,11 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
     case api::enums::VOICE_ASSISTANT_ERROR: {
       std::string code = "";
       std::string message = "";
-      for (const auto &arg : msg.data) {
+      for (auto arg : msg.data) {
         if (arg.name == "code") {
-          code = arg.value;
+          code = std::move(arg.value);
         } else if (arg.name == "message") {
-          message = arg.value;
+          message = std::move(arg.value);
         }
       }
       if (code == "wake-word-timeout" || code == "wake_word_detection_aborted" || code == "no_wake_word") {
@@ -842,12 +841,12 @@ void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {
 void VoiceAssistant::on_audio(const api::VoiceAssistantAudio &msg) {
 #ifdef USE_SPEAKER  // We should never get to this function if there is no speaker anyway
   if ((this->speaker_ != nullptr) && (this->speaker_buffer_ != nullptr)) {
-    if (this->speaker_buffer_index_ + msg.data_len < SPEAKER_BUFFER_SIZE) {
-      memcpy(this->speaker_buffer_ + this->speaker_buffer_index_, msg.data, msg.data_len);
-      this->speaker_buffer_index_ += msg.data_len;
-      this->speaker_buffer_size_ += msg.data_len;
-      this->speaker_bytes_received_ += msg.data_len;
-      ESP_LOGV(TAG, "Received audio: %u bytes from API", msg.data_len);
+    if (this->speaker_buffer_index_ + msg.data.length() < SPEAKER_BUFFER_SIZE) {
+      memcpy(this->speaker_buffer_ + this->speaker_buffer_index_, msg.data.data(), msg.data.length());
+      this->speaker_buffer_index_ += msg.data.length();
+      this->speaker_buffer_size_ += msg.data.length();
+      this->speaker_bytes_received_ += msg.data.length();
+      ESP_LOGV(TAG, "Received audio: %u bytes from API", msg.data.length());
     } else {
       ESP_LOGE(TAG, "Cannot receive audio, buffer is full");
     }
@@ -948,7 +947,7 @@ void VoiceAssistant::on_set_configuration(const std::vector<std::string> &active
     }
 
     // Enable only active wake words
-    for (auto ww_id : active_wake_words) {
+    for (const auto &ww_id : active_wake_words) {
       for (auto &model : this->micro_wake_word_->get_wake_words()) {
         if (model->get_id() == ww_id) {
           model->enable();

esphome/components/web_server/ota/ota_web_server.cpp

@@ -10,7 +10,7 @@
 #endif
 
 #ifdef USE_ARDUINO
-#if defined(USE_ESP32) || defined(USE_LIBRETINY)
+#if defined(USE_LIBRETINY)
 #include <Update.h>
 #endif
 #endif  // USE_ARDUINO
@@ -118,7 +118,7 @@ void OTARequestHandler::handleUpload(AsyncWebServerRequest *request, const Platf
 
     // Platform-specific pre-initialization
 #ifdef USE_ARDUINO
-#if defined(USE_ESP32) || defined(USE_LIBRETINY)
+#if defined(USE_LIBRETINY)
     if (Update.isRunning()) {
       Update.abort();
     }

esphome/components/web_server_idf/web_server_idf.cpp

@@ -385,9 +385,8 @@ void AsyncWebServerResponse::addHeader(const char *name, const char *value) {
 void AsyncResponseStream::print(float value) {
   // Use stack buffer to avoid temporary string allocation
   // Size: sign (1) + digits (10) + decimal (1) + precision (6) + exponent (5) + null (1) = 24, use 32 for safety
-  constexpr size_t float_buf_size = 32;
-  char buf[float_buf_size];
-  int len = snprintf(buf, float_buf_size, "%f", value);
+  char buf[32];
+  int len = snprintf(buf, sizeof(buf), "%f", value);
   this->content_.append(buf, len);
 }
 

esphome/components/wifi/automation.h

@@ -45,8 +45,7 @@ template<typename... Ts> class WiFiConfigureAction : public Action<Ts...>, publi
     if (this->connecting_)
       return;
     // If already connected to the same AP, do nothing
-    char ssid_buf[SSID_BUFFER_SIZE];
-    if (strcmp(global_wifi_component->wifi_ssid_to(ssid_buf), ssid.c_str()) == 0) {
+    if (global_wifi_component->wifi_ssid() == ssid) {
       // Callback to notify the user that the connection was successful
       this->connect_trigger_->trigger();
       return;
@@ -95,8 +94,7 @@ template<typename... Ts> class WiFiConfigureAction : public Action<Ts...>, publi
       this->cancel_timeout("wifi-connect-timeout");
       this->cancel_timeout("wifi-fallback-timeout");
       this->connecting_ = false;
-      char ssid_buf[SSID_BUFFER_SIZE];
-      if (strcmp(global_wifi_component->wifi_ssid_to(ssid_buf), this->new_sta_.get_ssid().c_str()) == 0) {
+      if (global_wifi_component->wifi_ssid() == this->new_sta_.get_ssid()) {
         // Callback to notify the user that the connection was successful
         this->connect_trigger_->trigger();
       } else {

esphome/components/wifi/wifi_component.cpp

@@ -1167,8 +1167,7 @@ void WiFiComponent::check_connecting_finished() {
   auto status = this->wifi_sta_connect_status_();
 
   if (status == WiFiSTAConnectStatus::CONNECTED) {
-    char ssid_buf[SSID_BUFFER_SIZE];
-    if (wifi_ssid_to(ssid_buf)[0] == '\0') {
+    if (wifi_ssid().empty()) {
       ESP_LOGW(TAG, "Connection incomplete");
       this->retry_connect();
       return;
@@ -1555,7 +1554,6 @@ void WiFiComponent::log_and_adjust_priority_for_failed_connect_() {
         (old_priority > std::numeric_limits<int8_t>::min()) ? (old_priority - 1) : std::numeric_limits<int8_t>::min();
     this->set_sta_priority(failed_bssid.value(), new_priority);
   }
-
   char bssid_s[18];
   format_mac_addr_upper(failed_bssid.value().data(), bssid_s);
   ESP_LOGD(TAG, "Failed " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") ", priority %d → %d",

esphome/config_validation.py

@@ -697,7 +697,16 @@ only_on_esp32 = only_on(PLATFORM_ESP32)
 only_on_esp8266 = only_on(PLATFORM_ESP8266)
 only_on_rp2040 = only_on(PLATFORM_RP2040)
 only_with_arduino = only_with_framework(Framework.ARDUINO)
-only_with_esp_idf = only_with_framework(Framework.ESP_IDF)
+
+
+def only_with_esp_idf(obj):
+    """Deprecated: use only_on_esp32 instead."""
+    _LOGGER.warning(
+        "cv.only_with_esp_idf was deprecated in 2026.1, will change behavior in 2026.6. "
+        "ESP32 Arduino builds on top of ESP-IDF, so ESP-IDF features are available in both frameworks. "
+        "Use cv.only_on_esp32 and/or cv.only_with_arduino instead."
+    )
+    return only_with_framework(Framework.ESP_IDF)(obj)
 
 
 # Adapted from:

esphome/core/__init__.py

@@ -742,15 +742,6 @@ class EsphomeCore:
     def relative_piolibdeps_path(self, *path: str | Path) -> Path:
         return self.relative_build_path(".piolibdeps", *path)
 
-    @property
-    def platformio_cache_dir(self) -> str:
-        """Get the PlatformIO cache directory path."""
-        # Check if running in Docker/HA addon with custom cache dir
-        if (cache_dir := os.environ.get("PLATFORMIO_CACHE_DIR")) and cache_dir.strip():
-            return cache_dir
-        # Default PlatformIO cache location
-        return os.path.expanduser("~/.platformio/.cache")
-
     @property
     def firmware_bin(self) -> Path:
         if self.is_libretiny:

esphome/core/defines.h

@@ -164,13 +164,9 @@
 #define USE_I2S_LEGACY
 #endif
 
-// IDF-specific feature flags
-#ifdef USE_ESP_IDF
-#define USE_MQTT_IDF_ENQUEUE
-#endif
-
 // ESP32-specific feature flags
 #ifdef USE_ESP32
+#define USE_MQTT_IDF_ENQUEUE
 #define USE_ESPHOME_TASK_LOG_BUFFER
 #define USE_OTA_ROLLBACK
 
@@ -231,7 +227,7 @@
 #define USE_ETHERNET_MANUAL_IP
 #endif
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 #define USE_MICRO_WAKE_WORD
 #define USE_MICRO_WAKE_WORD_VAD
 #if defined(USE_ESP32_VARIANT_ESP32C6) || defined(USE_ESP32_VARIANT_ESP32H2)

esphome/core/entity_base.cpp

@@ -9,8 +9,7 @@ static const char *const TAG = "entity_base";
 
 // Entity Name
 const StringRef &EntityBase::get_name() const { return this->name_; }
-void EntityBase::set_name(const char *name) { this->set_name(name, 0); }
-void EntityBase::set_name(const char *name, uint32_t object_id_hash) {
+void EntityBase::set_name(const char *name) {
   this->name_ = StringRef(name);
   if (this->name_.empty()) {
 #ifdef USE_DEVICES
@@ -19,29 +18,11 @@ void EntityBase::set_name(const char *name, uint32_t object_id_hash) {
     } else
 #endif
     {
-      // Bug-for-bug compatibility with OLD behavior:
-      // - With MAC suffix: OLD code used App.get_friendly_name() directly (no fallback)
-      // - Without MAC suffix: OLD code used pre-computed object_id with fallback to device name
-      const std::string &friendly = App.get_friendly_name();
-      if (App.is_name_add_mac_suffix_enabled()) {
-        // MAC suffix enabled - use friendly_name directly (even if empty) for compatibility
-        this->name_ = StringRef(friendly);
-      } else {
-        // No MAC suffix - fallback to device name if friendly_name is empty
-        this->name_ = StringRef(!friendly.empty() ? friendly : App.get_name());
-      }
+      this->name_ = StringRef(App.get_friendly_name());
     }
     this->flags_.has_own_name = false;
-    // Dynamic name - must calculate hash at runtime
-    this->calc_object_id_();
   } else {
     this->flags_.has_own_name = true;
-    // Static name - use pre-computed hash if provided
-    if (object_id_hash != 0) {
-      this->object_id_hash_ = object_id_hash;
-    } else {
-      this->calc_object_id_();
-    }
   }
 }
 
@@ -64,30 +45,69 @@ void EntityBase::set_icon(const char *icon) {
 #endif
 }
 
-// Entity Object ID - computed on-demand from name
+// Check if the object_id is dynamic (changes with MAC suffix)
+bool EntityBase::is_object_id_dynamic_() const {
+  return !this->flags_.has_own_name && App.is_name_add_mac_suffix_enabled();
+}
+
+// Entity Object ID
 std::string EntityBase::get_object_id() const {
-  char buf[OBJECT_ID_MAX_LEN];
-  size_t len = this->write_object_id_to(buf, sizeof(buf));
-  return std::string(buf, len);
+  // Check if `App.get_friendly_name()` is constant or dynamic.
+  if (this->is_object_id_dynamic_()) {
+    // `App.get_friendly_name()` is dynamic.
+    return str_sanitize(str_snake_case(App.get_friendly_name()));
+  }
+  // `App.get_friendly_name()` is constant.
+  return this->object_id_c_str_ == nullptr ? "" : this->object_id_c_str_;
+}
+void EntityBase::set_object_id(const char *object_id) {
+  this->object_id_c_str_ = object_id;
+  this->calc_object_id_();
 }
 
-// Calculate Object ID Hash directly from name using snake_case + sanitize
+void EntityBase::set_name_and_object_id(const char *name, const char *object_id) {
+  this->set_name(name);
+  this->object_id_c_str_ = object_id;
+  this->calc_object_id_();
+}
+
+// Calculate Object ID Hash from Entity Name
 void EntityBase::calc_object_id_() {
-  this->object_id_hash_ = fnv1_hash_object_id(this->name_.c_str(), this->name_.size());
+  char buf[OBJECT_ID_MAX_LEN];
+  StringRef object_id = this->get_object_id_to(buf);
+  this->object_id_hash_ = fnv1_hash(object_id.c_str());
 }
 
-size_t EntityBase::write_object_id_to(char *buf, size_t buf_size) const {
-  size_t len = std::min(this->name_.size(), buf_size - 1);
+// Format dynamic object_id: sanitized snake_case of friendly_name
+static size_t format_dynamic_object_id(char *buf, size_t buf_size) {
+  const std::string &name = App.get_friendly_name();
+  size_t len = std::min(name.size(), buf_size - 1);
   for (size_t i = 0; i < len; i++) {
-    buf[i] = to_sanitized_char(to_snake_case_char(this->name_[i]));
+    buf[i] = to_sanitized_char(to_snake_case_char(name[i]));
   }
   buf[len] = '\0';
   return len;
 }
 
+size_t EntityBase::write_object_id_to(char *buf, size_t buf_size) const {
+  if (this->is_object_id_dynamic_()) {
+    return format_dynamic_object_id(buf, buf_size);
+  }
+  const char *src = this->object_id_c_str_ == nullptr ? "" : this->object_id_c_str_;
+  size_t len = strlen(src);
+  if (len >= buf_size)
+    len = buf_size - 1;
+  memcpy(buf, src, len);
+  buf[len] = '\0';
+  return len;
+}
+
 StringRef EntityBase::get_object_id_to(std::span<char, OBJECT_ID_MAX_LEN> buf) const {
-  size_t len = this->write_object_id_to(buf.data(), buf.size());
-  return StringRef(buf.data(), len);
+  if (this->is_object_id_dynamic_()) {
+    size_t len = format_dynamic_object_id(buf.data(), buf.size());
+    return StringRef(buf.data(), len);
+  }
+  return this->object_id_c_str_ == nullptr ? StringRef() : StringRef(this->object_id_c_str_);
 }
 
 uint32_t EntityBase::get_object_id_hash() { return this->object_id_hash_; }

esphome/core/entity_base.h

@@ -28,9 +28,6 @@ class EntityBase {
   // Get/set the name of this Entity
   const StringRef &get_name() const;
   void set_name(const char *name);
-  /// Set name with pre-computed object_id hash (avoids runtime hash calculation)
-  /// Use hash=0 for dynamic names that need runtime calculation
-  void set_name(const char *name, uint32_t object_id_hash);
 
   // Get whether this Entity has its own name or it should use the device friendly_name.
   bool has_own_name() const { return this->flags_.has_own_name; }
@@ -46,6 +43,10 @@ class EntityBase {
                 "which will remain available longer. get_object_id() will be removed in 2026.7.0",
                 "2025.12.0")
   std::string get_object_id() const;
+  void set_object_id(const char *object_id);
+
+  // Set both name and object_id in one call (reduces generated code size)
+  void set_name_and_object_id(const char *name, const char *object_id);
 
   // Get the unique Object ID of this Entity
   uint32_t get_object_id_hash();
@@ -139,7 +140,11 @@ class EntityBase {
  protected:
   void calc_object_id_();
 
+  /// Check if the object_id is dynamic (changes with MAC suffix)
+  bool is_object_id_dynamic_() const;
+
   StringRef name_;
+  const char *object_id_c_str_{nullptr};
 #ifdef USE_ENTITY_ICON
   const char *icon_c_str_{nullptr};
 #endif

esphome/core/entity_helpers.py

@@ -15,7 +15,7 @@ from esphome.const import (
 from esphome.core import CORE, ID
 from esphome.cpp_generator import MockObj, add, get_variable
 import esphome.final_validate as fv
-from esphome.helpers import fnv1_hash_object_id, sanitize, snake_case
+from esphome.helpers import sanitize, snake_case
 from esphome.types import ConfigType, EntityMetadata
 
 _LOGGER = logging.getLogger(__name__)
@@ -75,18 +75,34 @@ async def setup_entity(var: MockObj, config: ConfigType, platform: str) -> None:
         config: Configuration dictionary containing entity settings
         platform: The platform name (e.g., "sensor", "binary_sensor")
     """
-    # Get device info if configured
+    # Get device info
+    device_name: str | None = None
+    device_id_obj: ID | None
     if device_id_obj := config.get(CONF_DEVICE_ID):
         device: MockObj = await get_variable(device_id_obj)
         add(var.set_device(device))
+        # Get device name for object ID calculation
+        device_name = device_id_obj.id
 
-    # Set the entity name with pre-computed object_id hash
-    # For named entities: pre-compute hash from entity name
-    # For empty-name entities: pass 0, C++ calculates hash at runtime from
-    # device name, friendly_name, or app name (bug-for-bug compatibility)
-    entity_name = config[CONF_NAME]
-    object_id_hash = fnv1_hash_object_id(entity_name) if entity_name else 0
-    add(var.set_name(entity_name, object_id_hash))
+    # Calculate base object_id using the same logic as C++
+    # This must match the C++ behavior in esphome/core/entity_base.cpp
+    base_object_id = get_base_entity_object_id(
+        config[CONF_NAME], CORE.friendly_name, device_name
+    )
+
+    if not config[CONF_NAME]:
+        _LOGGER.debug(
+            "Entity has empty name, using '%s' as object_id base", base_object_id
+        )
+
+    # Set both name and object_id in one call to reduce generated code size
+    add(var.set_name_and_object_id(config[CONF_NAME], base_object_id))
+    _LOGGER.debug(
+        "Setting object_id '%s' for entity '%s' on platform '%s'",
+        base_object_id,
+        config[CONF_NAME],
+        platform,
+    )
     # Only set disabled_by_default if True (default is False)
     if config[CONF_DISABLED_BY_DEFAULT]:
         add(var.set_disabled_by_default(True))

esphome/core/helpers.cpp

@@ -438,8 +438,10 @@ int8_t step_to_accuracy_decimals(float step) {
   return str.length() - dot_pos - 1;
 }
 
-// Store BASE64 characters as array - automatically placed in flash/ROM on embedded platforms
-static const char BASE64_CHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+// Use C-style string constant to store in ROM instead of RAM (saves 24 bytes)
+static constexpr const char *BASE64_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                                            "abcdefghijklmnopqrstuvwxyz"
+                                            "0123456789+/";
 
 // Helper function to find the index of a base64 character in the lookup table.
 // Returns the character's position (0-63) if found, or 0 if not found.
@@ -449,8 +451,8 @@ static const char BASE64_CHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr
 // stops processing at the first invalid character due to the is_base64() check in its
 // while loop condition, making this edge case harmless in practice.
 static inline uint8_t base64_find_char(char c) {
-  const void *ptr = memchr(BASE64_CHARS, c, sizeof(BASE64_CHARS));
-  return ptr ? (static_cast<const char *>(ptr) - BASE64_CHARS) : 0;
+  const char *pos = strchr(BASE64_CHARS, c);
+  return pos ? (pos - BASE64_CHARS) : 0;
 }
 
 static inline bool is_base64(char c) { return (isalnum(c) || (c == '+') || (c == '/')); }

esphome/core/helpers.h

@@ -162,9 +162,6 @@ template<typename T, size_t N> class StaticVector {
   size_t size() const { return count_; }
   bool empty() const { return count_ == 0; }
 
-  // Direct access to size counter for efficient in-place construction
-  size_t &count() { return count_; }
-
   T &operator[](size_t i) { return data_[i]; }
   const T &operator[](size_t i) const { return data_[i]; }
 
@@ -532,20 +529,6 @@ constexpr char to_sanitized_char(char c) {
 /// Sanitizes the input string by removing all characters but alphanumerics, dashes and underscores.
 std::string str_sanitize(const std::string &str);
 
-/// Calculate FNV-1 hash of a string while applying snake_case + sanitize transformations.
-/// This computes object_id hashes directly from names without creating an intermediate buffer.
-/// IMPORTANT: Must match Python fnv1_hash_object_id() in esphome/helpers.py.
-/// If you modify this function, update the Python version and tests in both places.
-inline uint32_t fnv1_hash_object_id(const char *str, size_t len) {
-  uint32_t hash = FNV1_OFFSET_BASIS;
-  for (size_t i = 0; i < len; i++) {
-    hash *= FNV1_PRIME;
-    // Apply snake_case (space->underscore, uppercase->lowercase) then sanitize
-    hash ^= static_cast<uint8_t>(to_sanitized_char(to_snake_case_char(str[i])));
-  }
-  return hash;
-}
-
 /// snprintf-like function returning std::string of maximum length \p len (excluding null terminator).
 std::string __attribute__((format(printf, 1, 3))) str_snprintf(const char *fmt, size_t len, ...);
 

esphome/core/log.cpp

@@ -46,7 +46,7 @@ void HOT esp_log_vprintf_(int level, const char *tag, int line, const __FlashStr
 }
 #endif
 
-#if defined(USE_ESP32_FRAMEWORK_ARDUINO) || defined(USE_ESP_IDF)
+#ifdef USE_ESP32
 int HOT esp_idf_log_vprintf_(const char *format, va_list args) {  // NOLINT
 #ifdef USE_LOGGER
   auto *log = logger::global_logger;