[api] Optimize APINoiseContext memory usage by removing shared_ptr overhead

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

.github/workflows/auto-label-pr.yml

@@ -22,7 +22,7 @@ jobs:
     if: github.event.action != 'labeled' || github.event.sender.type != 'Bot'
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       - name: Generate a token
         id: generate-token

.github/workflows/ci-api-proto.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Set up Python
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:

.github/workflows/ci-clang-tidy-hash.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       - name: Set up Python
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0

.github/workflows/ci-docker.yml

@@ -43,7 +43,7 @@ jobs:
           - "docker"
           # - "lint"
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Set up Python
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:

.github/workflows/ci-memory-impact-comment.yml

@@ -49,7 +49,7 @@ jobs:
 
       - name: Check out code from base repository
         if: steps.pr.outputs.skip != 'true'
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           # Always check out from the base repository (esphome/esphome), never from forks
           # Use the PR's target branch to ensure we run trusted code from the main repo

.github/workflows/ci.yml

@@ -36,7 +36,7 @@ jobs:
       cache-key: ${{ steps.cache-key.outputs.key }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Generate cache-key
         id: cache-key
         run: echo key="${{ hashFiles('requirements.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
@@ -70,7 +70,7 @@ jobs:
     if: needs.determine-jobs.outputs.python-linters == 'true'
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -91,7 +91,7 @@ jobs:
       - common
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -132,7 +132,7 @@ jobs:
       - common
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         id: restore-python
         uses: ./.github/actions/restore-python
@@ -183,7 +183,7 @@ jobs:
       component-test-batches: ${{ steps.determine.outputs.component-test-batches }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           # Fetch enough history to find the merge base
           fetch-depth: 2
@@ -237,7 +237,7 @@ jobs:
     if: needs.determine-jobs.outputs.integration-tests == 'true'
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Set up Python 3.13
         id: python
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
@@ -273,7 +273,7 @@ jobs:
     if: github.event_name == 'pull_request' && (needs.determine-jobs.outputs.cpp-unit-tests-run-all == 'true' || needs.determine-jobs.outputs.cpp-unit-tests-components != '[]')
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       - name: Restore Python
         uses: ./.github/actions/restore-python
@@ -321,7 +321,7 @@ jobs:
 
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -400,7 +400,7 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -489,7 +489,7 @@ jobs:
 
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -577,7 +577,7 @@ jobs:
           version: 1.0
 
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -662,7 +662,7 @@ jobs:
     if: github.event_name == 'pull_request' && !startsWith(github.base_ref, 'beta') && !startsWith(github.base_ref, 'release')
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -688,7 +688,7 @@ jobs:
       skip: ${{ steps.check-script.outputs.skip }}
     steps:
       - name: Check out target branch
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           ref: ${{ github.base_ref }}
 
@@ -840,7 +840,7 @@ jobs:
       flash_usage: ${{ steps.extract.outputs.flash_usage }}
     steps:
       - name: Check out PR branch
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -908,7 +908,7 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - name: Check out code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:

.github/workflows/codeql.yml

@@ -54,11 +54,11 @@ jobs:
             # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
       - name: Checkout repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@0499de31b99561a6d14a36a5f662c2a54f91beee # v4.31.2
+        uses: github/codeql-action/init@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4.31.4
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -86,6 +86,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@0499de31b99561a6d14a36a5f662c2a54f91beee # v4.31.2
+        uses: github/codeql-action/analyze@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4.31.4
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
       branch_build: ${{ steps.tag.outputs.branch_build }}
       deploy_env: ${{ steps.tag.outputs.deploy_env }}
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Get tag
         id: tag
         # yamllint disable rule:line-length
@@ -60,7 +60,7 @@ jobs:
       contents: read
       id-token: write
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Set up Python
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
@@ -92,7 +92,7 @@ jobs:
             os: "ubuntu-24.04-arm"
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Set up Python
         uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
@@ -168,7 +168,7 @@ jobs:
           - ghcr
           - dockerhub
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       - name: Download digests
         uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0

.github/workflows/sync-device-classes.yml

@@ -13,10 +13,10 @@ jobs:
     if: github.repository == 'esphome/esphome'
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
 
       - name: Checkout Home Assistant
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
         with:
           repository: home-assistant/core
           path: lib/home-assistant

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.14.4
+    rev: v0.14.5
     hooks:
       # Run the linter.
       - id: ruff

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2025.11.3
+PROJECT_NUMBER         = 2025.12.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

esphome/__main__.py

@@ -1319,7 +1319,7 @@ def parse_args(argv):
         "clean-all", help="Clean all build and platform files."
     )
     parser_clean_all.add_argument(
-        "configuration", help="Your YAML file or configuration directory.", nargs="*"
+        "configuration", help="Your YAML configuration directory.", nargs="*"
     )
 
     parser_dashboard = subparsers.add_parser(

esphome/components/ade7953_base/ade7953_base.cpp

@@ -25,8 +25,7 @@ void ADE7953::setup() {
     this->ade_write_8(PGA_V_8, pga_v_);
     this->ade_write_8(PGA_IA_8, pga_ia_);
     this->ade_write_8(PGA_IB_8, pga_ib_);
-    this->ade_write_32(AVGAIN_32, avgain_);
-    this->ade_write_32(BVGAIN_32, bvgain_);
+    this->ade_write_32(AVGAIN_32, vgain_);
     this->ade_write_32(AIGAIN_32, aigain_);
     this->ade_write_32(BIGAIN_32, bigain_);
     this->ade_write_32(AWGAIN_32, awgain_);
@@ -35,8 +34,7 @@ void ADE7953::setup() {
     this->ade_read_8(PGA_V_8, &pga_v_);
     this->ade_read_8(PGA_IA_8, &pga_ia_);
     this->ade_read_8(PGA_IB_8, &pga_ib_);
-    this->ade_read_32(AVGAIN_32, &avgain_);
-    this->ade_read_32(BVGAIN_32, &bvgain_);
+    this->ade_read_32(AVGAIN_32, &vgain_);
     this->ade_read_32(AIGAIN_32, &aigain_);
     this->ade_read_32(BIGAIN_32, &bigain_);
     this->ade_read_32(AWGAIN_32, &awgain_);
@@ -65,14 +63,13 @@ void ADE7953::dump_config() {
                 "  PGA_V_8: 0x%X\n"
                 "  PGA_IA_8: 0x%X\n"
                 "  PGA_IB_8: 0x%X\n"
-                "  AVGAIN_32: 0x%08jX\n"
-                "  BVGAIN_32: 0x%08jX\n"
+                "  VGAIN_32: 0x%08jX\n"
                 "  AIGAIN_32: 0x%08jX\n"
                 "  BIGAIN_32: 0x%08jX\n"
                 "  AWGAIN_32: 0x%08jX\n"
                 "  BWGAIN_32: 0x%08jX",
-                this->use_acc_energy_regs_, pga_v_, pga_ia_, pga_ib_, (uintmax_t) avgain_, (uintmax_t) bvgain_,
-                (uintmax_t) aigain_, (uintmax_t) bigain_, (uintmax_t) awgain_, (uintmax_t) bwgain_);
+                this->use_acc_energy_regs_, pga_v_, pga_ia_, pga_ib_, (uintmax_t) vgain_, (uintmax_t) aigain_,
+                (uintmax_t) bigain_, (uintmax_t) awgain_, (uintmax_t) bwgain_);
 }
 
 #define ADE_PUBLISH_(name, val, factor) \

esphome/components/ade7953_base/ade7953_base.h

@@ -46,12 +46,7 @@ class ADE7953 : public PollingComponent, public sensor::Sensor {
   void set_pga_ib(uint8_t pga_ib) { pga_ib_ = pga_ib; }
 
   // Set input gains
-  void set_vgain(uint32_t vgain) {
-    // Datasheet says: "to avoid discrepancies in other registers,
-    // if AVGAIN is set then BVGAIN should be set to the same value."
-    avgain_ = vgain;
-    bvgain_ = vgain;
-  }
+  void set_vgain(uint32_t vgain) { vgain_ = vgain; }
   void set_aigain(uint32_t aigain) { aigain_ = aigain; }
   void set_bigain(uint32_t bigain) { bigain_ = bigain; }
   void set_awgain(uint32_t awgain) { awgain_ = awgain; }
@@ -105,8 +100,7 @@ class ADE7953 : public PollingComponent, public sensor::Sensor {
   uint8_t pga_v_;
   uint8_t pga_ia_;
   uint8_t pga_ib_;
-  uint32_t avgain_;
-  uint32_t bvgain_;
+  uint32_t vgain_;
   uint32_t aigain_;
   uint32_t bigain_;
   uint32_t awgain_;

esphome/components/analog_threshold/analog_threshold_binary_sensor.cpp

@@ -12,11 +12,10 @@ void AnalogThresholdBinarySensor::setup() {
   // TRUE state is defined to be when sensor is >= threshold
   // so when undefined sensor value initialize to FALSE
   if (std::isnan(sensor_value)) {
-    this->raw_state_ = false;
     this->publish_initial_state(false);
   } else {
-    this->raw_state_ = sensor_value >= (this->lower_threshold_.value() + this->upper_threshold_.value()) / 2.0f;
-    this->publish_initial_state(this->raw_state_);
+    this->publish_initial_state(sensor_value >=
+                                (this->lower_threshold_.value() + this->upper_threshold_.value()) / 2.0f);
   }
 }
 
@@ -26,10 +25,8 @@ void AnalogThresholdBinarySensor::set_sensor(sensor::Sensor *analog_sensor) {
   this->sensor_->add_on_state_callback([this](float sensor_value) {
     // if there is an invalid sensor reading, ignore the change and keep the current state
     if (!std::isnan(sensor_value)) {
-      // Use raw_state_ for hysteresis logic, not this->state which is post-filter
-      this->raw_state_ =
-          sensor_value >= (this->raw_state_ ? this->lower_threshold_.value() : this->upper_threshold_.value());
-      this->publish_state(this->raw_state_);
+      this->publish_state(sensor_value >=
+                          (this->state ? this->lower_threshold_.value() : this->upper_threshold_.value()));
     }
   });
 }

esphome/components/analog_threshold/analog_threshold_binary_sensor.h

@@ -20,7 +20,6 @@ class AnalogThresholdBinarySensor : public Component, public binary_sensor::Bina
   sensor::Sensor *sensor_{nullptr};
   TemplatableValue<float> upper_threshold_{};
   TemplatableValue<float> lower_threshold_{};
-  bool raw_state_{false};  // Pre-filter state for hysteresis logic
 };
 
 }  // namespace analog_threshold

esphome/components/api/api_connection.cpp

@@ -90,8 +90,8 @@ static const int CAMERA_STOP_STREAM = 5000;
 APIConnection::APIConnection(std::unique_ptr<socket::Socket> sock, APIServer *parent)
     : parent_(parent), initial_state_iterator_(this), list_entities_iterator_(this) {
 #if defined(USE_API_PLAINTEXT) && defined(USE_API_NOISE)
-  auto noise_ctx = parent->get_noise_ctx();
-  if (noise_ctx->has_psk()) {
+  auto &noise_ctx = parent->get_noise_ctx();
+  if (noise_ctx.has_psk()) {
     this->helper_ =
         std::unique_ptr<APIFrameHelper>{new APINoiseFrameHelper(std::move(sock), noise_ctx, &this->client_info_)};
   } else {

esphome/components/api/api_frame_helper_noise.cpp

@@ -527,7 +527,7 @@ APIError APINoiseFrameHelper::init_handshake_() {
   if (aerr != APIError::OK)
     return aerr;
 
-  const auto &psk = ctx_->get_psk();
+  const auto &psk = this->ctx_.get_psk();
   err = noise_handshakestate_set_pre_shared_key(handshake_, psk.data(), psk.size());
   aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_set_pre_shared_key"),
                              APIError::HANDSHAKESTATE_SETUP_FAILED);

esphome/components/api/api_frame_helper_noise.h

@@ -9,9 +9,8 @@ namespace esphome::api {
 
 class APINoiseFrameHelper final : public APIFrameHelper {
  public:
-  APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, std::shared_ptr<APINoiseContext> ctx,
-                      const ClientInfo *client_info)
-      : APIFrameHelper(std::move(socket), client_info), ctx_(std::move(ctx)) {
+  APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, APINoiseContext &ctx, const ClientInfo *client_info)
+      : APIFrameHelper(std::move(socket), client_info), ctx_(ctx) {
     // Noise header structure:
     // Pos 0: indicator (0x01)
     // Pos 1-2: encrypted payload size (16-bit big-endian)
@@ -41,8 +40,8 @@ class APINoiseFrameHelper final : public APIFrameHelper {
   NoiseCipherState *send_cipher_{nullptr};
   NoiseCipherState *recv_cipher_{nullptr};
 
-  // Shared pointer (8 bytes on 32-bit = 4 bytes control block pointer + 4 bytes object pointer)
-  std::shared_ptr<APINoiseContext> ctx_;
+  // Reference to noise context (4 bytes on 32-bit)
+  APINoiseContext &ctx_;
 
   // Vector (12 bytes on 32-bit)
   std::vector<uint8_t> prologue_;

esphome/components/api/api_server.cpp

@@ -227,8 +227,8 @@ void APIServer::dump_config() {
                 "  Max connections: %u",
                 network::get_use_address(), this->port_, this->listen_backlog_, this->max_connections_);
 #ifdef USE_API_NOISE
-  ESP_LOGCONFIG(TAG, "  Noise encryption: %s", YESNO(this->noise_ctx_->has_psk()));
-  if (!this->noise_ctx_->has_psk()) {
+  ESP_LOGCONFIG(TAG, "  Noise encryption: %s", YESNO(this->noise_ctx_.has_psk()));
+  if (!this->noise_ctx_.has_psk()) {
     ESP_LOGCONFIG(TAG, "  Supports encryption: YES");
   }
 #else
@@ -493,7 +493,7 @@ bool APIServer::save_noise_psk(psk_t psk, bool make_active) {
   ESP_LOGW(TAG, "Key set in YAML");
   return false;
 #else
-  auto &old_psk = this->noise_ctx_->get_psk();
+  auto &old_psk = this->noise_ctx_.get_psk();
   if (std::equal(old_psk.begin(), old_psk.end(), psk.begin())) {
     ESP_LOGW(TAG, "New PSK matches old");
     return true;

esphome/components/api/api_server.h

@@ -54,8 +54,8 @@ class APIServer : public Component, public Controller {
 #ifdef USE_API_NOISE
   bool save_noise_psk(psk_t psk, bool make_active = true);
   bool clear_noise_psk(bool make_active = true);
-  void set_noise_psk(psk_t psk) { noise_ctx_->set_psk(psk); }
-  std::shared_ptr<APINoiseContext> get_noise_ctx() { return noise_ctx_; }
+  void set_noise_psk(psk_t psk) { this->noise_ctx_.set_psk(psk); }
+  APINoiseContext &get_noise_ctx() { return this->noise_ctx_; }
 #endif  // USE_API_NOISE
 
   void handle_disconnect(APIConnection *conn);
@@ -228,7 +228,7 @@ class APIServer : public Component, public Controller {
   // 7 bytes used, 1 byte padding
 
 #ifdef USE_API_NOISE
-  std::shared_ptr<APINoiseContext> noise_ctx_ = std::make_shared<APINoiseContext>();
+  APINoiseContext noise_ctx_;
   ESPPreferenceObject noise_pref_;
 #endif  // USE_API_NOISE
 };

esphome/components/binary_sensor/automation.cpp

@@ -1,12 +1,11 @@
 #include "automation.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 static const char *const TAG = "binary_sensor.automation";
 
-void binary_sensor::MultiClickTrigger::on_state_(bool state) {
+void MultiClickTrigger::on_state_(bool state) {
   // Handle duplicate events
   if (state == this->last_state_) {
     return;
@@ -67,7 +66,7 @@ void binary_sensor::MultiClickTrigger::on_state_(bool state) {
 
   *this->at_index_ = *this->at_index_ + 1;
 }
-void binary_sensor::MultiClickTrigger::schedule_cooldown_() {
+void MultiClickTrigger::schedule_cooldown_() {
   ESP_LOGV(TAG, "Multi Click: Invalid length of press, starting cooldown of %" PRIu32 " ms", this->invalid_cooldown_);
   this->is_in_cooldown_ = true;
   this->set_timeout("cooldown", this->invalid_cooldown_, [this]() {
@@ -79,7 +78,7 @@ void binary_sensor::MultiClickTrigger::schedule_cooldown_() {
   this->cancel_timeout("is_valid");
   this->cancel_timeout("is_not_valid");
 }
-void binary_sensor::MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
+void MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
   if (min_length == 0) {
     this->is_valid_ = true;
     return;
@@ -90,19 +89,19 @@ void binary_sensor::MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
     this->is_valid_ = true;
   });
 }
-void binary_sensor::MultiClickTrigger::schedule_is_not_valid_(uint32_t max_length) {
+void MultiClickTrigger::schedule_is_not_valid_(uint32_t max_length) {
   this->set_timeout("is_not_valid", max_length, [this]() {
     ESP_LOGV(TAG, "Multi Click: You waited too long to %s.", this->parent_->state ? "RELEASE" : "PRESS");
     this->is_valid_ = false;
     this->schedule_cooldown_();
   });
 }
-void binary_sensor::MultiClickTrigger::cancel() {
+void MultiClickTrigger::cancel() {
   ESP_LOGV(TAG, "Multi Click: Sequence explicitly cancelled.");
   this->is_valid_ = false;
   this->schedule_cooldown_();
 }
-void binary_sensor::MultiClickTrigger::trigger_() {
+void MultiClickTrigger::trigger_() {
   ESP_LOGV(TAG, "Multi Click: Hooray, multi click is valid. Triggering!");
   this->at_index_.reset();
   this->cancel_timeout("trigger");
@@ -118,5 +117,4 @@ bool match_interval(uint32_t min_length, uint32_t max_length, uint32_t length) {
     return length >= min_length && length <= max_length;
   }
 }
-}  // namespace binary_sensor
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/automation.h

@@ -9,8 +9,7 @@
 #include "esphome/core/helpers.h"
 #include "esphome/components/binary_sensor/binary_sensor.h"
 
-namespace esphome {
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 struct MultiClickTriggerEvent {
   bool state;
@@ -172,5 +171,4 @@ template<typename... Ts> class BinarySensorInvalidateAction : public Action<Ts..
   BinarySensor *sensor_;
 };
 
-}  // namespace binary_sensor
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/binary_sensor.cpp

@@ -3,9 +3,7 @@
 #include "esphome/core/controller_registry.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 static const char *const TAG = "binary_sensor";
 
@@ -63,6 +61,4 @@ void BinarySensor::add_filters(std::initializer_list<Filter *> filters) {
 }
 bool BinarySensor::is_status_binary_sensor() const { return false; }
 
-}  // namespace binary_sensor
-
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/binary_sensor.h

@@ -6,9 +6,7 @@
 
 #include <initializer_list>
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 class BinarySensor;
 void log_binary_sensor(const char *tag, const char *prefix, const char *type, BinarySensor *obj);
@@ -70,5 +68,4 @@ class BinarySensorInitiallyOff : public BinarySensor {
   bool has_state() const override { return true; }
 };
 
-}  // namespace binary_sensor
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/filter.cpp

@@ -2,9 +2,7 @@
 
 #include "binary_sensor.h"
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 static const char *const TAG = "sensor.filter";
 
@@ -132,6 +130,4 @@ optional<bool> SettleFilter::new_value(bool value) {
 
 float SettleFilter::get_setup_priority() const { return setup_priority::HARDWARE; }
 
-}  // namespace binary_sensor
-
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/filter.h

@@ -4,9 +4,7 @@
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 class BinarySensor;
 
@@ -139,6 +137,4 @@ class SettleFilter : public Filter, public Component {
   bool steady_{true};
 };
 
-}  // namespace binary_sensor
-
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/bme68x_bsec2/bme68x_bsec2.cpp

@@ -70,6 +70,9 @@ void BME68xBSEC2Component::dump_config() {
   if (this->is_failed()) {
     ESP_LOGE(TAG, "Communication failed (BSEC2 status: %d, BME68X status: %d)", this->bsec_status_,
              this->bme68x_status_);
+    if (this->bsec_status_ == BSEC_I_SU_SUBSCRIBEDOUTPUTGATES) {
+      ESP_LOGE(TAG, "No sensors, add at least one sensor to the config");
+    }
   }
 
   if (this->algorithm_output_ != ALGORITHM_OUTPUT_IAQ) {

esphome/components/cover/automation.h

@@ -4,8 +4,7 @@
 #include "esphome/core/automation.h"
 #include "cover.h"
 
-namespace esphome {
-namespace cover {
+namespace esphome::cover {
 
 template<typename... Ts> class OpenAction : public Action<Ts...> {
  public:
@@ -131,5 +130,4 @@ class CoverClosedTrigger : public Trigger<> {
   }
 };
 
-}  // namespace cover
-}  // namespace esphome
+}  // namespace esphome::cover

esphome/components/cover/cover.cpp

@@ -6,8 +6,7 @@
 
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace cover {
+namespace esphome::cover {
 
 static const char *const TAG = "cover";
 
@@ -212,5 +211,4 @@ void CoverRestoreState::apply(Cover *cover) {
   cover->publish_state();
 }
 
-}  // namespace cover
-}  // namespace esphome
+}  // namespace esphome::cover

esphome/components/cover/cover.h

@@ -7,8 +7,7 @@
 
 #include "cover_traits.h"
 
-namespace esphome {
-namespace cover {
+namespace esphome::cover {
 
 const extern float COVER_OPEN;
 const extern float COVER_CLOSED;
@@ -157,5 +156,4 @@ class Cover : public EntityBase, public EntityBase_DeviceClass {
   ESPPreferenceObject rtc_;
 };
 
-}  // namespace cover
-}  // namespace esphome
+}  // namespace esphome::cover

esphome/components/cover/cover_traits.h

@@ -1,7 +1,6 @@
 #pragma once
 
-namespace esphome {
-namespace cover {
+namespace esphome::cover {
 
 class CoverTraits {
  public:
@@ -26,5 +25,4 @@ class CoverTraits {
   bool supports_stop_{false};
 };
 
-}  // namespace cover
-}  // namespace esphome
+}  // namespace esphome::cover

esphome/components/cst816/touchscreen/cst816_touchscreen.cpp

@@ -19,9 +19,8 @@ void CST816Touchscreen::continue_setup_() {
       case CST816T_CHIP_ID:
         break;
       default:
-        ESP_LOGE(TAG, "Unknown chip ID: 0x%02X", this->chip_id_);
-        this->status_set_error("Unknown chip ID");
         this->mark_failed();
+        this->status_set_error(str_sprintf("Unknown chip ID 0x%02X", this->chip_id_).c_str());
         return;
     }
     this->write_byte(REG_IRQ_CTL, IRQ_EN_MOTION);

esphome/components/dashboard_import/dashboard_import.cpp

@@ -3,10 +3,10 @@
 namespace esphome {
 namespace dashboard_import {
 
-static std::string g_package_import_url;  // NOLINT
+static const char *g_package_import_url = "";  // NOLINT
 
-const std::string &get_package_import_url() { return g_package_import_url; }
-void set_package_import_url(std::string url) { g_package_import_url = std::move(url); }
+const char *get_package_import_url() { return g_package_import_url; }
+void set_package_import_url(const char *url) { g_package_import_url = url; }
 
 }  // namespace dashboard_import
 }  // namespace esphome

esphome/components/dashboard_import/dashboard_import.h

@@ -1,12 +1,10 @@
 #pragma once
 
-#include <string>
-
 namespace esphome {
 namespace dashboard_import {
 
-const std::string &get_package_import_url();
-void set_package_import_url(std::string url);
+const char *get_package_import_url();
+void set_package_import_url(const char *url);
 
 }  // namespace dashboard_import
 }  // namespace esphome

esphome/components/epaper_spi/display.py

@@ -102,7 +102,7 @@ def customise_schema(config):
     """
     config = cv.Schema(
         {
-            cv.Required(CONF_MODEL): cv.one_of(*MODELS, upper=True, space="-"),
+            cv.Required(CONF_MODEL): cv.one_of(*MODELS, upper=True),
         },
         extra=cv.ALLOW_EXTRA,
     )(config)

esphome/components/epaper_spi/models/spectra_e6.py

@@ -32,15 +32,11 @@ class SpectraE6(EpaperModel):
 
 spectra_e6 = SpectraE6("spectra-e6")
 
-spectra_e6_7p3 = spectra_e6.extend(
-    "7.3in-Spectra-E6",
+spectra_e6.extend(
+    "Seeed-reTerminal-E1002",
     width=800,
     height=480,
     data_rate="20MHz",
-)
-
-spectra_e6_7p3.extend(
-    "Seeed-reTerminal-E1002",
     cs_pin=10,
     dc_pin=11,
     reset_pin=12,

esphome/components/esp32/__init__.py

@@ -854,10 +854,6 @@ def _configure_lwip_max_sockets(conf: dict) -> None:
 async def to_code(config):
     cg.add_platformio_option("board", config[CONF_BOARD])
     cg.add_platformio_option("board_upload.flash_size", config[CONF_FLASH_SIZE])
-    cg.add_platformio_option(
-        "board_upload.maximum_size",
-        int(config[CONF_FLASH_SIZE].removesuffix("MB")) * 1024 * 1024,
-    )
     cg.set_cpp_standard("gnu++20")
     cg.add_build_flag("-DUSE_ESP32")
     cg.add_define("ESPHOME_BOARD", config[CONF_BOARD])
@@ -887,12 +883,6 @@ async def to_code(config):
         CORE.relative_internal_path(".espressif")
     )
 
-    add_extra_script(
-        "pre",
-        "pre_build.py",
-        Path(__file__).parent / "pre_build.py.script",
-    )
-
     add_extra_script(
         "post",
         "post_build.py",

esphome/components/esp32/pre_build.py.script

@@ -1,9 +0,0 @@
-Import("env")  # noqa: F821
-
-# Remove custom_sdkconfig from the board config as it causes
-# pioarduino to enable some strange hybrid build mode that breaks IDF
-board = env.BoardConfig()
-if "espidf.custom_sdkconfig" in board:
-    del board._manifest["espidf"]["custom_sdkconfig"]
-    if not board._manifest["espidf"]:
-        del board._manifest["espidf"]

esphome/components/esp32_ble/ble.cpp

@@ -634,11 +634,13 @@ void ESP32BLE::dump_config() {
         io_capability_s = "invalid";
         break;
     }
+    char mac_s[18];
+    format_mac_addr_upper(mac_address, mac_s);
     ESP_LOGCONFIG(TAG,
                   "BLE:\n"
                   "  MAC address: %s\n"
                   "  IO Capability: %s",
-                  format_mac_address_pretty(mac_address).c_str(), io_capability_s);
+                  mac_s, io_capability_s);
   } else {
     ESP_LOGCONFIG(TAG, "Bluetooth stack is not enabled");
   }

esphome/components/esp32_hosted/update/esp32_hosted_update.cpp

@@ -22,11 +22,6 @@ constexpr size_t CHUNK_SIZE = 1500;
 void Esp32HostedUpdate::setup() {
   this->update_info_.title = "ESP32 Hosted Coprocessor";
 
-  // if wifi is not present, connect to the coprocessor
-#ifndef USE_WIFI
-  esp_hosted_connect_to_slave();  // NOLINT
-#endif
-
   // get coprocessor version
   esp_hosted_coprocessor_fwver_t ver_info;
   if (esp_hosted_get_coprocessor_fwversion(&ver_info) == ESP_OK) {

esphome/components/esp_ldo/esp_ldo.cpp

@@ -14,8 +14,8 @@ void EspLdo::setup() {
   config.flags.adjustable = this->adjustable_;
   auto err = esp_ldo_acquire_channel(&config, &this->handle_);
   if (err != ESP_OK) {
-    ESP_LOGE(TAG, "Failed to acquire LDO channel %d with voltage %fV", this->channel_, this->voltage_);
-    this->mark_failed("Failed to acquire LDO channel");
+    auto msg = str_sprintf("Failed to acquire LDO channel %d with voltage %fV", this->channel_, this->voltage_);
+    this->mark_failed(msg.c_str());
   } else {
     ESP_LOGD(TAG, "Acquired LDO channel %d with voltage %fV", this->channel_, this->voltage_);
   }

esphome/components/espnow/espnow_component.cpp

@@ -10,7 +10,6 @@
 
 #include <esp_event.h>
 #include <esp_mac.h>
-#include <esp_netif.h>
 #include <esp_now.h>
 #include <esp_random.h>
 #include <esp_wifi.h>
@@ -158,12 +157,6 @@ bool ESPNowComponent::is_wifi_enabled() {
 }
 
 void ESPNowComponent::setup() {
-#ifndef USE_WIFI
-  // Initialize LwIP stack for wake_loop_threadsafe() socket support
-  // When WiFi component is present, it handles esp_netif_init()
-  ESP_ERROR_CHECK(esp_netif_init());
-#endif
-
   if (this->enable_on_boot_) {
     this->enable_();
   } else {

esphome/components/font/__init__.py

@@ -36,7 +36,6 @@ from esphome.const import (
     CONF_WEIGHT,
 )
 from esphome.core import CORE, HexInt
-from esphome.helpers import cpp_string_escape
 from esphome.types import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
@@ -50,7 +49,6 @@ font_ns = cg.esphome_ns.namespace("font")
 
 Font = font_ns.class_("Font")
 Glyph = font_ns.class_("Glyph")
-GlyphData = font_ns.struct("GlyphData")
 
 CONF_BPP = "bpp"
 CONF_EXTRAS = "extras"
@@ -463,7 +461,7 @@ FONT_SCHEMA = cv.Schema(
             )
         ),
         cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
-        cv.GenerateID(CONF_RAW_GLYPH_ID): cv.declare_id(GlyphData),
+        cv.GenerateID(CONF_RAW_GLYPH_ID): cv.declare_id(Glyph),
     },
 )
 
@@ -488,6 +486,8 @@ class GlyphInfo:
 
 
 def glyph_to_glyphinfo(glyph, font, size, bpp):
+    # Convert to 32 bit unicode codepoint
+    glyph = ord(glyph)
     scale = 256 // (1 << bpp)
     if not font.is_scalable:
         sizes = [pt_to_px(x.size) for x in font.available_sizes]
@@ -583,22 +583,15 @@ async def to_code(config):
 
     # Create the glyph table that points to data in the above array.
     glyph_initializer = [
-        cg.StructInitializer(
-            GlyphData,
-            (
-                "a_char",
-                cg.RawExpression(f"(const uint8_t *){cpp_string_escape(x.glyph)}"),
-            ),
-            (
-                "data",
-                cg.RawExpression(f"{str(prog_arr)} + {str(y - len(x.bitmap_data))}"),
-            ),
-            ("advance", x.advance),
-            ("offset_x", x.offset_x),
-            ("offset_y", x.offset_y),
-            ("width", x.width),
-            ("height", x.height),
-        )
+        [
+            x.glyph,
+            prog_arr + (y - len(x.bitmap_data)),
+            x.advance,
+            x.offset_x,
+            x.offset_y,
+            x.width,
+            x.height,
+        ]
         for (x, y) in zip(
             glyph_args, list(accumulate([len(x.bitmap_data) for x in glyph_args]))
         )

esphome/components/font/font.cpp

@@ -6,133 +6,245 @@
 
 namespace esphome {
 namespace font {
-
 static const char *const TAG = "font";
 
-const uint8_t *Glyph::get_char() const { return this->glyph_data_->a_char; }
-// Compare the char at the string position with this char.
-// Return true if this char is less than or equal the other.
-bool Glyph::compare_to(const uint8_t *str) const {
-  // 1 -> this->char_
-  // 2 -> str
-  for (uint32_t i = 0;; i++) {
-    if (this->glyph_data_->a_char[i] == '\0')
-      return true;
-    if (str[i] == '\0')
-      return false;
-    if (this->glyph_data_->a_char[i] > str[i])
-      return false;
-    if (this->glyph_data_->a_char[i] < str[i])
-      return true;
+#ifdef USE_LVGL_FONT
+const uint8_t *Font::get_glyph_bitmap(const lv_font_t *font, uint32_t unicode_letter) {
+  auto *fe = (Font *) font->dsc;
+  const auto *gd = fe->get_glyph_data_(unicode_letter);
+  if (gd == nullptr) {
+    return nullptr;
   }
-  // this should not happen
-  return false;
-}
-int Glyph::match_length(const uint8_t *str) const {
-  for (uint32_t i = 0;; i++) {
-    if (this->glyph_data_->a_char[i] == '\0')
-      return i;
-    if (str[i] != this->glyph_data_->a_char[i])
-      return 0;
-  }
-  // this should not happen
-  return 0;
-}
-void Glyph::scan_area(int *x1, int *y1, int *width, int *height) const {
-  *x1 = this->glyph_data_->offset_x;
-  *y1 = this->glyph_data_->offset_y;
-  *width = this->glyph_data_->width;
-  *height = this->glyph_data_->height;
+  return gd->data;
 }
 
-Font::Font(const GlyphData *data, int data_nr, int baseline, int height, int descender, int xheight, int capheight,
+bool Font::get_glyph_dsc_cb(const lv_font_t *font, lv_font_glyph_dsc_t *dsc, uint32_t unicode_letter, uint32_t next) {
+  auto *fe = (Font *) font->dsc;
+  const auto *gd = fe->get_glyph_data_(unicode_letter);
+  if (gd == nullptr) {
+    return false;
+  }
+  dsc->adv_w = gd->advance;
+  dsc->ofs_x = gd->offset_x;
+  dsc->ofs_y = fe->height_ - gd->height - gd->offset_y - fe->lv_font_.base_line;
+  dsc->box_w = gd->width;
+  dsc->box_h = gd->height;
+  dsc->is_placeholder = 0;
+  dsc->bpp = fe->get_bpp();
+  return true;
+}
+
+const Glyph *Font::get_glyph_data_(uint32_t unicode_letter) {
+  if (unicode_letter == this->last_letter_ && this->last_letter_ != 0)
+    return this->last_data_;
+  auto *glyph = this->find_glyph(unicode_letter);
+  if (glyph == nullptr) {
+    return nullptr;
+  }
+  this->last_data_ = glyph;
+  this->last_letter_ = unicode_letter;
+  return glyph;
+}
+#endif
+
+/**
+ *  Attempt to extract a 32 bit Unicode codepoint from a UTF-8 string.
+ *  If successful, return the codepoint and set the length to the number of bytes read.
+ *  If the end of the string has been reached and a valid codepoint has not been found, return 0 and set the length to
+ * 0.
+ *
+ * @param utf8_str The input string
+ * @param length Pointer to length storage
+ * @return The extracted code point
+ */
+static uint32_t extract_unicode_codepoint(const char *utf8_str, size_t *length) {
+  // Safely cast to uint8_t* for correct bitwise operations on bytes
+  const uint8_t *current = reinterpret_cast<const uint8_t *>(utf8_str);
+  uint32_t code_point = 0;
+  uint8_t c1 = *current++;
+
+  // check for end of string
+  if (c1 == 0) {
+    *length = 0;
+    return 0;
+  }
+
+  // --- 1-Byte Sequence: 0xxxxxxx (ASCII) ---
+  if (c1 < 0x80) {
+    // Valid ASCII byte.
+    code_point = c1;
+    // Optimization: No need to check for continuation bytes.
+  }
+  // --- 2-Byte Sequence: 110xxxxx 10xxxxxx ---
+  else if ((c1 & 0xE0) == 0xC0) {
+    uint8_t c2 = *current++;
+
+    // Error Check 1: Check if c2 is a valid continuation byte (10xxxxxx)
+    if ((c2 & 0xC0) != 0x80) {
+      *length = 0;
+      return 0;
+    }
+
+    code_point = (c1 & 0x1F) << 6;
+    code_point |= (c2 & 0x3F);
+
+    // Error Check 2: Overlong check (2-byte must be > 0x7F)
+    if (code_point <= 0x7F) {
+      *length = 0;
+      return 0;
+    }
+  }
+  // --- 3-Byte Sequence: 1110xxxx 10xxxxxx 10xxxxxx ---
+  else if ((c1 & 0xF0) == 0xE0) {
+    uint8_t c2 = *current++;
+    uint8_t c3 = *current++;
+
+    // Error Check 1: Check continuation bytes
+    if (((c2 & 0xC0) != 0x80) || ((c3 & 0xC0) != 0x80)) {
+      *length = 0;
+      return 0;
+    }
+
+    code_point = (c1 & 0x0F) << 12;
+    code_point |= (c2 & 0x3F) << 6;
+    code_point |= (c3 & 0x3F);
+
+    // Error Check 2: Overlong check (3-byte must be > 0x7FF)
+    // Also check for surrogates (0xD800-0xDFFF)
+    if (code_point <= 0x7FF || (code_point >= 0xD800 && code_point <= 0xDFFF)) {
+      *length = 0;
+      return 0;
+    }
+  }
+  // --- 4-Byte Sequence: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx ---
+  else if ((c1 & 0xF8) == 0xF0) {
+    uint8_t c2 = *current++;
+    uint8_t c3 = *current++;
+    uint8_t c4 = *current++;
+
+    // Error Check 1: Check continuation bytes
+    if (((c2 & 0xC0) != 0x80) || ((c3 & 0xC0) != 0x80) || ((c4 & 0xC0) != 0x80)) {
+      *length = 0;
+      return 0;
+    }
+
+    code_point = (c1 & 0x07) << 18;
+    code_point |= (c2 & 0x3F) << 12;
+    code_point |= (c3 & 0x3F) << 6;
+    code_point |= (c4 & 0x3F);
+
+    // Error Check 2: Overlong check (4-byte must be > 0xFFFF)
+    // Also check for valid Unicode range (must be <= 0x10FFFF)
+    if (code_point <= 0xFFFF || code_point > 0x10FFFF) {
+      *length = 0;
+      return 0;
+    }
+  }
+  // --- Invalid leading byte (e.g., 10xxxxxx or 11111xxx) ---
+  else {
+    *length = 0;
+    return 0;
+  }
+  *length = current - reinterpret_cast<const uint8_t *>(utf8_str);
+  return code_point;
+}
+
+Font::Font(const Glyph *data, int data_nr, int baseline, int height, int descender, int xheight, int capheight,
            uint8_t bpp)
-    : baseline_(baseline),
+    : glyphs_(ConstVector(data, data_nr)),
+      baseline_(baseline),
       height_(height),
       descender_(descender),
       linegap_(height - baseline - descender),
       xheight_(xheight),
       capheight_(capheight),
       bpp_(bpp) {
-  glyphs_.reserve(data_nr);
-  for (int i = 0; i < data_nr; ++i)
-    glyphs_.emplace_back(&data[i]);
+#ifdef USE_LVGL_FONT
+  this->lv_font_.dsc = this;
+  this->lv_font_.line_height = this->get_height();
+  this->lv_font_.base_line = this->lv_font_.line_height - this->get_baseline();
+  this->lv_font_.get_glyph_dsc = get_glyph_dsc_cb;
+  this->lv_font_.get_glyph_bitmap = get_glyph_bitmap;
+  this->lv_font_.subpx = LV_FONT_SUBPX_NONE;
+  this->lv_font_.underline_position = -1;
+  this->lv_font_.underline_thickness = 1;
+#endif
 }
-int Font::match_next_glyph(const uint8_t *str, int *match_length) {
+
+const Glyph *Font::find_glyph(uint32_t codepoint) const {
   int lo = 0;
   int hi = this->glyphs_.size() - 1;
   while (lo != hi) {
     int mid = (lo + hi + 1) / 2;
-    if (this->glyphs_[mid].compare_to(str)) {
+    if (this->glyphs_[mid].is_less_or_equal(codepoint)) {
       lo = mid;
     } else {
       hi = mid - 1;
     }
   }
-  *match_length = this->glyphs_[lo].match_length(str);
-  if (*match_length <= 0)
-    return -1;
-  return lo;
+  auto *result = &this->glyphs_[lo];
+  if (result->code_point == codepoint)
+    return result;
+  return nullptr;
 }
+
 #ifdef USE_DISPLAY
 void Font::measure(const char *str, int *width, int *x_offset, int *baseline, int *height) {
   *baseline = this->baseline_;
   *height = this->height_;
-  int i = 0;
   int min_x = 0;
   bool has_char = false;
   int x = 0;
-  while (str[i] != '\0') {
-    int match_length;
-    int glyph_n = this->match_next_glyph((const uint8_t *) str + i, &match_length);
-    if (glyph_n < 0) {
+  for (;;) {
+    size_t length;
+    auto code_point = extract_unicode_codepoint(str, &length);
+    if (length == 0)
+      break;
+    str += length;
+    auto *glyph = this->find_glyph(code_point);
+    if (glyph == nullptr) {
       // Unknown char, skip
-      if (!this->get_glyphs().empty())
-        x += this->get_glyphs()[0].glyph_data_->advance;
-      i++;
+      if (!this->glyphs_.empty())
+        x += this->glyphs_[0].advance;
       continue;
     }
 
-    const Glyph &glyph = this->glyphs_[glyph_n];
     if (!has_char) {
-      min_x = glyph.glyph_data_->offset_x;
+      min_x = glyph->offset_x;
     } else {
-      min_x = std::min(min_x, x + glyph.glyph_data_->offset_x);
+      min_x = std::min(min_x, x + glyph->offset_x);
     }
-    x += glyph.glyph_data_->advance;
+    x += glyph->advance;
 
-    i += match_length;
     has_char = true;
   }
   *x_offset = min_x;
   *width = x - min_x;
 }
+
 void Font::print(int x_start, int y_start, display::Display *display, Color color, const char *text, Color background) {
-  int i = 0;
   int x_at = x_start;
-  int scan_x1, scan_y1, scan_width, scan_height;
-  while (text[i] != '\0') {
-    int match_length;
-    int glyph_n = this->match_next_glyph((const uint8_t *) text + i, &match_length);
-    if (glyph_n < 0) {
+  for (;;) {
+    size_t length;
+    auto code_point = extract_unicode_codepoint(text, &length);
+    if (length == 0)
+      break;
+    text += length;
+    auto *glyph = this->find_glyph(code_point);
+    if (glyph == nullptr) {
       // Unknown char, skip
-      ESP_LOGW(TAG, "Encountered character without representation in font: '%c'", text[i]);
-      if (!this->get_glyphs().empty()) {
-        uint8_t glyph_width = this->get_glyphs()[0].glyph_data_->advance;
-        display->filled_rectangle(x_at, y_start, glyph_width, this->height_, color);
+      ESP_LOGW(TAG, "Codepoint 0x%08" PRIx32 " not found in font", code_point);
+      if (!this->glyphs_.empty()) {
+        uint8_t glyph_width = this->glyphs_[0].advance;
+        display->rectangle(x_at, y_start, glyph_width, this->height_, color);
         x_at += glyph_width;
       }
-
-      i++;
       continue;
     }
 
-    const Glyph &glyph = this->get_glyphs()[glyph_n];
-    glyph.scan_area(&scan_x1, &scan_y1, &scan_width, &scan_height);
-
-    const uint8_t *data = glyph.glyph_data_->data;
-    const int max_x = x_at + scan_x1 + scan_width;
-    const int max_y = y_start + scan_y1 + scan_height;
+    const uint8_t *data = glyph->data;
+    const int max_x = x_at + glyph->offset_x + glyph->width;
+    const int max_y = y_start + glyph->offset_y + glyph->height;
 
     uint8_t bitmask = 0;
     uint8_t pixel_data = 0;
@@ -145,10 +257,10 @@ void Font::print(int x_start, int y_start, display::Display *display, Color colo
     auto b_g = (float) background.g;
     auto b_b = (float) background.b;
     auto b_w = (float) background.w;
-    for (int glyph_y = y_start + scan_y1; glyph_y != max_y; glyph_y++) {
-      for (int glyph_x = x_at + scan_x1; glyph_x != max_x; glyph_x++) {
+    for (int glyph_y = y_start + glyph->offset_y; glyph_y != max_y; glyph_y++) {
+      for (int glyph_x = x_at + glyph->offset_x; glyph_x != max_x; glyph_x++) {
         uint8_t pixel = 0;
-        for (int bit_num = 0; bit_num != this->bpp_; bit_num++) {
+        for (uint8_t bit_num = 0; bit_num != this->bpp_; bit_num++) {
           if (bitmask == 0) {
             pixel_data = progmem_read_byte(data++);
             bitmask = 0x80;
@@ -168,12 +280,9 @@ void Font::print(int x_start, int y_start, display::Display *display, Color colo
         }
       }
     }
-    x_at += glyph.glyph_data_->advance;
-
-    i += match_length;
+    x_at += glyph->advance;
   }
 }
 #endif
-
 }  // namespace font
 }  // namespace esphome

esphome/components/font/font.h

@@ -6,14 +6,30 @@
 #ifdef USE_DISPLAY
 #include "esphome/components/display/display.h"
 #endif
+#ifdef USE_LVGL_FONT
+#include <lvgl.h>
+#endif
 
 namespace esphome {
 namespace font {
 
 class Font;
 
-struct GlyphData {
-  const uint8_t *a_char;
+class Glyph {
+ public:
+  constexpr Glyph(uint32_t code_point, const uint8_t *data, int advance, int offset_x, int offset_y, int width,
+                  int height)
+      : code_point(code_point),
+        data(data),
+        advance(advance),
+        offset_x(offset_x),
+        offset_y(offset_y),
+        width(width),
+        height(height) {}
+
+  bool is_less_or_equal(uint32_t other) const { return this->code_point <= other; }
+
+  const uint32_t code_point;
   const uint8_t *data;
   int advance;
   int offset_x;
@@ -22,26 +38,6 @@ struct GlyphData {
   int height;
 };
 
-class Glyph {
- public:
-  Glyph(const GlyphData *data) : glyph_data_(data) {}
-
-  const uint8_t *get_char() const;
-
-  bool compare_to(const uint8_t *str) const;
-
-  int match_length(const uint8_t *str) const;
-
-  void scan_area(int *x1, int *y1, int *width, int *height) const;
-
-  const GlyphData *get_glyph_data() const { return this->glyph_data_; }
-
- protected:
-  friend Font;
-
-  const GlyphData *glyph_data_;
-};
-
 class Font
 #ifdef USE_DISPLAY
     : public display::BaseFont
@@ -50,8 +46,8 @@ class Font
  public:
   /** Construct the font with the given glyphs.
    *
-   * @param data A vector of glyphs, must be sorted lexicographically.
-   * @param data_nr The number of glyphs in data.
+   * @param data A list of glyphs, must be sorted lexicographically.
+   * @param data_nr The number of glyphs
    * @param baseline The y-offset from the top of the text to the baseline.
    * @param height The y-offset from the top of the text to the bottom.
    * @param descender The y-offset from the baseline to the lowest stroke in the font (e.g. from letters like g or p).
@@ -59,10 +55,10 @@ class Font
    * @param capheight The height of capital letters, usually measured at the "X" glyph.
    * @param bpp The bits per pixel used for this font. Used to read data out of the glyph bitmaps.
    */
-  Font(const GlyphData *data, int data_nr, int baseline, int height, int descender, int xheight, int capheight,
+  Font(const Glyph *data, int data_nr, int baseline, int height, int descender, int xheight, int capheight,
        uint8_t bpp = 1);
 
-  int match_next_glyph(const uint8_t *str, int *match_length);
+  const Glyph *find_glyph(uint32_t codepoint) const;
 
 #ifdef USE_DISPLAY
   void print(int x_start, int y_start, display::Display *display, Color color, const char *text,
@@ -77,11 +73,14 @@ class Font
   inline int get_xheight() { return this->xheight_; }
   inline int get_capheight() { return this->capheight_; }
   inline int get_bpp() { return this->bpp_; }
+#ifdef USE_LVGL_FONT
+  const lv_font_t *get_lv_font() const { return &this->lv_font_; }
+#endif
 
-  const std::vector<Glyph, RAMAllocator<Glyph>> &get_glyphs() const { return glyphs_; }
+  const ConstVector<Glyph> &get_glyphs() const { return glyphs_; }
 
  protected:
-  std::vector<Glyph, RAMAllocator<Glyph>> glyphs_;
+  ConstVector<Glyph> glyphs_;
   int baseline_;
   int height_;
   int descender_;
@@ -89,6 +88,14 @@ class Font
   int xheight_;
   int capheight_;
   uint8_t bpp_;  // bits per pixel
+#ifdef USE_LVGL_FONT
+  lv_font_t lv_font_{};
+  static const uint8_t *get_glyph_bitmap(const lv_font_t *font, uint32_t unicode_letter);
+  static bool get_glyph_dsc_cb(const lv_font_t *font, lv_font_glyph_dsc_t *dsc, uint32_t unicode_letter, uint32_t next);
+  const Glyph *get_glyph_data_(uint32_t unicode_letter);
+  uint32_t last_letter_{};
+  const Glyph *last_data_{};
+#endif
 };
 
 }  // namespace font

esphome/components/graph/graph.cpp

@@ -337,7 +337,7 @@ void Graph::draw_legend(display::Display *buff, uint16_t x_offset, uint16_t y_of
     return;
 
   /// Plot border
-  if (legend_->border_) {
+  if (this->border_) {
     int w = legend_->width_;
     int h = legend_->height_;
     buff->horizontal_line(x_offset, y_offset, w, color);

esphome/components/hlk_fm22x/hlk_fm22x.h

@@ -189,7 +189,7 @@ template<typename... Ts> class EnrollmentAction : public Action<Ts...>, public P
   TEMPLATABLE_VALUE(std::string, name)
   TEMPLATABLE_VALUE(uint8_t, direction)
 
-  void play(const Ts &...x) override {
+  void play(Ts... x) override {
     auto name = this->name_.value(x...);
     auto direction = (HlkFm22xFaceDirection) this->direction_.value(x...);
     this->parent_->enroll_face(name, direction);
@@ -200,7 +200,7 @@ template<typename... Ts> class DeleteAction : public Action<Ts...>, public Paren
  public:
   TEMPLATABLE_VALUE(int16_t, face_id)
 
-  void play(const Ts &...x) override {
+  void play(Ts... x) override {
     auto face_id = this->face_id_.value(x...);
     this->parent_->delete_face(face_id);
   }
@@ -208,17 +208,17 @@ template<typename... Ts> class DeleteAction : public Action<Ts...>, public Paren
 
 template<typename... Ts> class DeleteAllAction : public Action<Ts...>, public Parented<HlkFm22xComponent> {
  public:
-  void play(const Ts &...x) override { this->parent_->delete_all_faces(); }
+  void play(Ts... x) override { this->parent_->delete_all_faces(); }
 };
 
 template<typename... Ts> class ScanAction : public Action<Ts...>, public Parented<HlkFm22xComponent> {
  public:
-  void play(const Ts &...x) override { this->parent_->scan_face(); }
+  void play(Ts... x) override { this->parent_->scan_face(); }
 };
 
 template<typename... Ts> class ResetAction : public Action<Ts...>, public Parented<HlkFm22xComponent> {
  public:
-  void play(const Ts &...x) override { this->parent_->reset(); }
+  void play(Ts... x) override { this->parent_->reset(); }
 };
 
 }  // namespace esphome::hlk_fm22x

esphome/components/http_request/update/http_request_update.cpp

@@ -49,18 +49,18 @@ void HttpRequestUpdate::update_task(void *params) {
   auto container = this_update->request_parent_->get(this_update->source_url_);
 
   if (container == nullptr || container->status_code != HTTP_STATUS_OK) {
-    ESP_LOGE(TAG, "Failed to fetch manifest from %s", this_update->source_url_.c_str());
+    std::string msg = str_sprintf("Failed to fetch manifest from %s", this_update->source_url_.c_str());
     // Defer to main loop to avoid race condition on component_state_ read-modify-write
-    this_update->defer([this_update]() { this_update->status_set_error("Failed to fetch manifest"); });
+    this_update->defer([this_update, msg]() { this_update->status_set_error(msg.c_str()); });
     UPDATE_RETURN;
   }
 
   RAMAllocator<uint8_t> allocator;
   uint8_t *data = allocator.allocate(container->content_length);
   if (data == nullptr) {
-    ESP_LOGE(TAG, "Failed to allocate %zu bytes for manifest", container->content_length);
+    std::string msg = str_sprintf("Failed to allocate %zu bytes for manifest", container->content_length);
     // Defer to main loop to avoid race condition on component_state_ read-modify-write
-    this_update->defer([this_update]() { this_update->status_set_error("Failed to allocate memory for manifest"); });
+    this_update->defer([this_update, msg]() { this_update->status_set_error(msg.c_str()); });
     container->end();
     UPDATE_RETURN;
   }
@@ -121,9 +121,9 @@ void HttpRequestUpdate::update_task(void *params) {
   }
 
   if (!valid) {
-    ESP_LOGE(TAG, "Failed to parse JSON from %s", this_update->source_url_.c_str());
+    std::string msg = str_sprintf("Failed to parse JSON from %s", this_update->source_url_.c_str());
     // Defer to main loop to avoid race condition on component_state_ read-modify-write
-    this_update->defer([this_update]() { this_update->status_set_error("Failed to parse manifest JSON"); });
+    this_update->defer([this_update, msg]() { this_update->status_set_error(msg.c_str()); });
     UPDATE_RETURN;
   }
 

esphome/components/jsn_sr04t/jsn_sr04t.cpp

@@ -10,7 +10,7 @@ namespace jsn_sr04t {
 static const char *const TAG = "jsn_sr04t.sensor";
 
 void Jsnsr04tComponent::update() {
-  this->write_byte((this->model_ == AJ_SR04M) ? 0x01 : 0x55);
+  this->write_byte(0x55);
   ESP_LOGV(TAG, "Request read out from sensor");
 }
 
@@ -31,10 +31,19 @@ void Jsnsr04tComponent::loop() {
 }
 
 void Jsnsr04tComponent::check_buffer_() {
-  uint8_t checksum = this->buffer_[0] + this->buffer_[1] + this->buffer_[2];
+  uint8_t checksum = 0;
+  switch (this->model_) {
+    case JSN_SR04T:
+      checksum = this->buffer_[0] + this->buffer_[1] + this->buffer_[2];
+      break;
+    case AJ_SR04M:
+      checksum = this->buffer_[1] + this->buffer_[2];
+      break;
+  }
+
   if (this->buffer_[3] == checksum) {
     uint16_t distance = encode_uint16(this->buffer_[1], this->buffer_[2]);
-    if (distance > ((this->model_ == AJ_SR04M) ? 200 : 250)) {
+    if (distance > 250) {
       float meters = distance / 1000.0f;
       ESP_LOGV(TAG, "Distance from sensor: %umm, %.3fm", distance, meters);
       this->publish_state(meters);

esphome/components/ld2410/ld2410.cpp

@@ -13,8 +13,6 @@ namespace esphome {
 namespace ld2410 {
 
 static const char *const TAG = "ld2410";
-static const char *const UNKNOWN_MAC = "unknown";
-static const char *const VERSION_FMT = "%u.%02X.%02X%02X%02X%02X";
 
 enum BaudRate : uint8_t {
   BAUD_RATE_9600 = 1,
@@ -181,15 +179,15 @@ static inline bool validate_header_footer(const uint8_t *header_footer, const ui
 }
 
 void LD2410Component::dump_config() {
-  std::string mac_str =
-      mac_address_is_valid(this->mac_address_) ? format_mac_address_pretty(this->mac_address_) : UNKNOWN_MAC;
-  std::string version = str_sprintf(VERSION_FMT, this->version_[1], this->version_[0], this->version_[5],
-                                    this->version_[4], this->version_[3], this->version_[2]);
+  char mac_s[18];
+  char version_s[20];
+  const char *mac_str = ld24xx::format_mac_str(this->mac_address_, mac_s);
+  ld24xx::format_version_str(this->version_, version_s);
   ESP_LOGCONFIG(TAG,
                 "LD2410:\n"
                 "  Firmware version: %s\n"
                 "  MAC address: %s",
-                version.c_str(), mac_str.c_str());
+                version_s, mac_str);
 #ifdef USE_BINARY_SENSOR
   ESP_LOGCONFIG(TAG, "Binary Sensors:");
   LOG_BINARY_SENSOR("  ", "Target", this->target_binary_sensor_);
@@ -448,12 +446,12 @@ bool LD2410Component::handle_ack_data_() {
 
     case CMD_QUERY_VERSION: {
       std::memcpy(this->version_, &this->buffer_data_[12], sizeof(this->version_));
-      std::string version = str_sprintf(VERSION_FMT, this->version_[1], this->version_[0], this->version_[5],
-                                        this->version_[4], this->version_[3], this->version_[2]);
-      ESP_LOGV(TAG, "Firmware version: %s", version.c_str());
+      char version_s[20];
+      ld24xx::format_version_str(this->version_, version_s);
+      ESP_LOGV(TAG, "Firmware version: %s", version_s);
 #ifdef USE_TEXT_SENSOR
       if (this->version_text_sensor_ != nullptr) {
-        this->version_text_sensor_->publish_state(version);
+        this->version_text_sensor_->publish_state(version_s);
       }
 #endif
       break;
@@ -506,9 +504,9 @@ bool LD2410Component::handle_ack_data_() {
         std::memcpy(this->mac_address_, &this->buffer_data_[10], sizeof(this->mac_address_));
       }
 
-      std::string mac_str =
-          mac_address_is_valid(this->mac_address_) ? format_mac_address_pretty(this->mac_address_) : UNKNOWN_MAC;
-      ESP_LOGV(TAG, "MAC address: %s", mac_str.c_str());
+      char mac_s[18];
+      const char *mac_str = ld24xx::format_mac_str(this->mac_address_, mac_s);
+      ESP_LOGV(TAG, "MAC address: %s", mac_str);
 #ifdef USE_TEXT_SENSOR
       if (this->mac_text_sensor_ != nullptr) {
         this->mac_text_sensor_->publish_state(mac_str);

esphome/components/ld2412/ld2412.cpp

@@ -14,8 +14,6 @@ namespace esphome {
 namespace ld2412 {
 
 static const char *const TAG = "ld2412";
-static const char *const UNKNOWN_MAC = "unknown";
-static const char *const VERSION_FMT = "%u.%02X.%02X%02X%02X%02X";
 
 enum BaudRate : uint8_t {
   BAUD_RATE_9600 = 1,
@@ -200,15 +198,15 @@ static inline bool validate_header_footer(const uint8_t *header_footer, const ui
 }
 
 void LD2412Component::dump_config() {
-  std::string mac_str =
-      mac_address_is_valid(this->mac_address_) ? format_mac_address_pretty(this->mac_address_) : UNKNOWN_MAC;
-  std::string version = str_sprintf(VERSION_FMT, this->version_[1], this->version_[0], this->version_[5],
-                                    this->version_[4], this->version_[3], this->version_[2]);
+  char mac_s[18];
+  char version_s[20];
+  const char *mac_str = ld24xx::format_mac_str(this->mac_address_, mac_s);
+  ld24xx::format_version_str(this->version_, version_s);
   ESP_LOGCONFIG(TAG,
                 "LD2412:\n"
                 "  Firmware version: %s\n"
                 "  MAC address: %s",
-                version.c_str(), mac_str.c_str());
+                version_s, mac_str);
 #ifdef USE_BINARY_SENSOR
   ESP_LOGCONFIG(TAG, "Binary Sensors:");
   LOG_BINARY_SENSOR("  ", "DynamicBackgroundCorrectionStatus",
@@ -492,12 +490,12 @@ bool LD2412Component::handle_ack_data_() {
 
     case CMD_QUERY_VERSION: {
       std::memcpy(this->version_, &this->buffer_data_[12], sizeof(this->version_));
-      std::string version = str_sprintf(VERSION_FMT, this->version_[1], this->version_[0], this->version_[5],
-                                        this->version_[4], this->version_[3], this->version_[2]);
-      ESP_LOGV(TAG, "Firmware version: %s", version.c_str());
+      char version_s[20];
+      ld24xx::format_version_str(this->version_, version_s);
+      ESP_LOGV(TAG, "Firmware version: %s", version_s);
 #ifdef USE_TEXT_SENSOR
       if (this->version_text_sensor_ != nullptr) {
-        this->version_text_sensor_->publish_state(version);
+        this->version_text_sensor_->publish_state(version_s);
       }
 #endif
       break;
@@ -544,9 +542,9 @@ bool LD2412Component::handle_ack_data_() {
         std::memcpy(this->mac_address_, &this->buffer_data_[10], sizeof(this->mac_address_));
       }
 
-      std::string mac_str =
-          mac_address_is_valid(this->mac_address_) ? format_mac_address_pretty(this->mac_address_) : UNKNOWN_MAC;
-      ESP_LOGV(TAG, "MAC address: %s", mac_str.c_str());
+      char mac_s[18];
+      const char *mac_str = ld24xx::format_mac_str(this->mac_address_, mac_s);
+      ESP_LOGV(TAG, "MAC address: %s", mac_str);
 #ifdef USE_TEXT_SENSOR
       if (this->mac_text_sensor_ != nullptr) {
         this->mac_text_sensor_->publish_state(mac_str);

esphome/components/ld2450/ld2450.cpp

@@ -17,8 +17,6 @@ namespace esphome {
 namespace ld2450 {
 
 static const char *const TAG = "ld2450";
-static const char *const UNKNOWN_MAC = "unknown";
-static const char *const VERSION_FMT = "%u.%02X.%02X%02X%02X%02X";
 
 enum BaudRate : uint8_t {
   BAUD_RATE_9600 = 1,
@@ -192,15 +190,15 @@ void LD2450Component::setup() {
 }
 
 void LD2450Component::dump_config() {
-  std::string mac_str =
-      mac_address_is_valid(this->mac_address_) ? format_mac_address_pretty(this->mac_address_) : UNKNOWN_MAC;
-  std::string version = str_sprintf(VERSION_FMT, this->version_[1], this->version_[0], this->version_[5],
-                                    this->version_[4], this->version_[3], this->version_[2]);
+  char mac_s[18];
+  char version_s[20];
+  const char *mac_str = ld24xx::format_mac_str(this->mac_address_, mac_s);
+  ld24xx::format_version_str(this->version_, version_s);
   ESP_LOGCONFIG(TAG,
                 "LD2450:\n"
                 "  Firmware version: %s\n"
                 "  MAC address: %s",
-                version.c_str(), mac_str.c_str());
+                version_s, mac_str);
 #ifdef USE_BINARY_SENSOR
   ESP_LOGCONFIG(TAG, "Binary Sensors:");
   LOG_BINARY_SENSOR("  ", "MovingTarget", this->moving_target_binary_sensor_);
@@ -642,12 +640,12 @@ bool LD2450Component::handle_ack_data_() {
 
     case CMD_QUERY_VERSION: {
       std::memcpy(this->version_, &this->buffer_data_[12], sizeof(this->version_));
-      std::string version = str_sprintf(VERSION_FMT, this->version_[1], this->version_[0], this->version_[5],
-                                        this->version_[4], this->version_[3], this->version_[2]);
-      ESP_LOGV(TAG, "Firmware version: %s", version.c_str());
+      char version_s[20];
+      ld24xx::format_version_str(this->version_, version_s);
+      ESP_LOGV(TAG, "Firmware version: %s", version_s);
 #ifdef USE_TEXT_SENSOR
       if (this->version_text_sensor_ != nullptr) {
-        this->version_text_sensor_->publish_state(version);
+        this->version_text_sensor_->publish_state(version_s);
       }
 #endif
       break;
@@ -663,9 +661,9 @@ bool LD2450Component::handle_ack_data_() {
         std::memcpy(this->mac_address_, &this->buffer_data_[10], sizeof(this->mac_address_));
       }
 
-      std::string mac_str =
-          mac_address_is_valid(this->mac_address_) ? format_mac_address_pretty(this->mac_address_) : UNKNOWN_MAC;
-      ESP_LOGV(TAG, "MAC address: %s", mac_str.c_str());
+      char mac_s[18];
+      const char *mac_str = ld24xx::format_mac_str(this->mac_address_, mac_s);
+      ESP_LOGV(TAG, "MAC address: %s", mac_str);
 #ifdef USE_TEXT_SENSOR
       if (this->mac_text_sensor_ != nullptr) {
         this->mac_text_sensor_->publish_state(mac_str);

esphome/components/ld24xx/ld24xx.h

@@ -1,11 +1,12 @@
 #pragma once
 
 #include "esphome/core/defines.h"
+#include "esphome/core/helpers.h"
 
 #include <memory>
+#include <span>
 
 #ifdef USE_SENSOR
-#include "esphome/core/helpers.h"
 #include "esphome/components/sensor/sensor.h"
 
 #define SUB_SENSOR_WITH_DEDUP(name, dedup_type) \
@@ -39,6 +40,27 @@
 namespace esphome {
 namespace ld24xx {
 
+static const char *const UNKNOWN_MAC = "unknown";
+static const char *const VERSION_FMT = "%u.%02X.%02X%02X%02X%02X";
+
+// Helper function to format MAC address with stack allocation
+// Returns pointer to UNKNOWN_MAC constant or formatted buffer
+// Buffer must be exactly 18 bytes (17 for "XX:XX:XX:XX:XX:XX" + null terminator)
+inline const char *format_mac_str(const uint8_t *mac_address, std::span<char, 18> buffer) {
+  if (mac_address_is_valid(mac_address)) {
+    format_mac_addr_upper(mac_address, buffer.data());
+    return buffer.data();
+  }
+  return UNKNOWN_MAC;
+}
+
+// Helper function to format firmware version with stack allocation
+// Buffer must be exactly 20 bytes (format: "x.xxXXXXXX" fits in 11 + null terminator, 20 for safety)
+inline void format_version_str(const uint8_t *version, std::span<char, 20> buffer) {
+  snprintf(buffer.data(), buffer.size(), VERSION_FMT, version[1], version[0], version[5], version[4], version[3],
+           version[2]);
+}
+
 #ifdef USE_SENSOR
 // Helper class to store a sensor with a deduplicator & publish state only when the value changes
 template<typename T> class SensorWithDedup {

esphome/components/ltr501/ltr501.cpp

@@ -174,7 +174,7 @@ void LTRAlsPs501Component::loop() {
       break;
 
     case State::WAITING_FOR_DATA:
-      if (this->is_als_data_ready_(this->als_readings_) == LtrDataAvail::LTR_DATA_OK) {
+      if (this->is_als_data_ready_(this->als_readings_) == DataAvail::DATA_OK) {
         tries = 0;
         ESP_LOGV(TAG, "Reading sensor data assuming gain = %.0fx, time = %d ms",
                  get_gain_coeff(this->als_readings_.gain), get_itime_ms(this->als_readings_.integration_time));
@@ -379,18 +379,18 @@ void LTRAlsPs501Component::configure_integration_time_(IntegrationTime501 time)
   }
 }
 
-LtrDataAvail LTRAlsPs501Component::is_als_data_ready_(AlsReadings &data) {
+DataAvail LTRAlsPs501Component::is_als_data_ready_(AlsReadings &data) {
   AlsPsStatusRegister als_status{0};
   als_status.raw = this->reg((uint8_t) CommandRegisters::ALS_PS_STATUS).get();
   if (!als_status.als_new_data)
-    return LtrDataAvail::LTR_NO_DATA;
+    return DataAvail::NO_DATA;
   ESP_LOGV(TAG, "Data ready, reported gain is %.0fx", get_gain_coeff(als_status.gain));
   if (data.gain != als_status.gain) {
     ESP_LOGW(TAG, "Actual gain differs from requested (%.0f)", get_gain_coeff(data.gain));
-    return LtrDataAvail::LTR_BAD_DATA;
+    return DataAvail::BAD_DATA;
   }
   data.gain = als_status.gain;
-  return LtrDataAvail::LTR_DATA_OK;
+  return DataAvail::DATA_OK;
 }
 
 void LTRAlsPs501Component::read_sensor_data_(AlsReadings &data) {

esphome/components/ltr501/ltr501.h

@@ -11,7 +11,7 @@
 namespace esphome {
 namespace ltr501 {
 
-enum LtrDataAvail : uint8_t { LTR_NO_DATA, LTR_BAD_DATA, LTR_DATA_OK };
+enum DataAvail : uint8_t { NO_DATA, BAD_DATA, DATA_OK };
 
 enum LtrType : uint8_t {
   LTR_TYPE_UNKNOWN = 0,
@@ -106,7 +106,7 @@ class LTRAlsPs501Component : public PollingComponent, public i2c::I2CDevice {
   void configure_als_();
   void configure_integration_time_(IntegrationTime501 time);
   void configure_gain_(AlsGain501 gain);
-  LtrDataAvail is_als_data_ready_(AlsReadings &data);
+  DataAvail is_als_data_ready_(AlsReadings &data);
   void read_sensor_data_(AlsReadings &data);
   bool are_adjustments_required_(AlsReadings &data);
   void apply_lux_calculation_(AlsReadings &data);

esphome/components/ltr_als_ps/ltr_als_ps.cpp

@@ -165,7 +165,7 @@ void LTRAlsPsComponent::loop() {
       break;
 
     case State::WAITING_FOR_DATA:
-      if (this->is_als_data_ready_(this->als_readings_) == LtrDataAvail::LTR_DATA_OK) {
+      if (this->is_als_data_ready_(this->als_readings_) == DataAvail::DATA_OK) {
         tries = 0;
         ESP_LOGV(TAG, "Reading sensor data having gain = %.0fx, time = %d ms", get_gain_coeff(this->als_readings_.gain),
                  get_itime_ms(this->als_readings_.integration_time));
@@ -376,23 +376,23 @@ void LTRAlsPsComponent::configure_integration_time_(IntegrationTime time) {
   }
 }
 
-LtrDataAvail LTRAlsPsComponent::is_als_data_ready_(AlsReadings &data) {
+DataAvail LTRAlsPsComponent::is_als_data_ready_(AlsReadings &data) {
   AlsPsStatusRegister als_status{0};
 
   als_status.raw = this->reg((uint8_t) CommandRegisters::ALS_PS_STATUS).get();
   if (!als_status.als_new_data)
-    return LtrDataAvail::LTR_NO_DATA;
+    return DataAvail::NO_DATA;
 
   if (als_status.data_invalid) {
     ESP_LOGW(TAG, "Data available but not valid");
-    return LtrDataAvail::LTR_BAD_DATA;
+    return DataAvail::BAD_DATA;
   }
   ESP_LOGV(TAG, "Data ready, reported gain is %.0f", get_gain_coeff(als_status.gain));
   if (data.gain != als_status.gain) {
     ESP_LOGW(TAG, "Actual gain differs from requested (%.0f)", get_gain_coeff(data.gain));
-    return LtrDataAvail::LTR_BAD_DATA;
+    return DataAvail::BAD_DATA;
   }
-  return LtrDataAvail::LTR_DATA_OK;
+  return DataAvail::DATA_OK;
 }
 
 void LTRAlsPsComponent::read_sensor_data_(AlsReadings &data) {

esphome/components/ltr_als_ps/ltr_als_ps.h

@@ -11,7 +11,7 @@
 namespace esphome {
 namespace ltr_als_ps {
 
-enum LtrDataAvail : uint8_t { LTR_NO_DATA, LTR_BAD_DATA, LTR_DATA_OK };
+enum DataAvail : uint8_t { NO_DATA, BAD_DATA, DATA_OK };
 
 enum LtrType : uint8_t {
   LTR_TYPE_UNKNOWN = 0,
@@ -106,7 +106,7 @@ class LTRAlsPsComponent : public PollingComponent, public i2c::I2CDevice {
   void configure_als_();
   void configure_integration_time_(IntegrationTime time);
   void configure_gain_(AlsGain gain);
-  LtrDataAvail is_als_data_ready_(AlsReadings &data);
+  DataAvail is_als_data_ready_(AlsReadings &data);
   void read_sensor_data_(AlsReadings &data);
   bool are_adjustments_required_(AlsReadings &data);
   void apply_lux_calculation_(AlsReadings &data);

esphome/components/lvgl/__init__.py

@@ -52,15 +52,7 @@ from .schemas import (
 from .styles import add_top_layer, styles_to_code, theme_to_code
 from .touchscreens import touchscreen_schema, touchscreens_to_code
 from .trigger import add_on_boot_triggers, generate_triggers
-from .types import (
-    FontEngine,
-    IdleTrigger,
-    PlainTrigger,
-    lv_font_t,
-    lv_group_t,
-    lv_style_t,
-    lvgl_ns,
-)
+from .types import IdleTrigger, PlainTrigger, lv_font_t, lv_group_t, lv_style_t, lvgl_ns
 from .widgets import (
     LvScrActType,
     Widget,
@@ -244,7 +236,6 @@ async def to_code(configs):
     cg.add_global(lvgl_ns.using)
     for font in helpers.esphome_fonts_used:
         await cg.get_variable(font)
-        cg.new_Pvariable(ID(f"{font}_engine", True, type=FontEngine), MockObj(font))
     default_font = config_0[df.CONF_DEFAULT_FONT]
     if not lvalid.is_lv_font(default_font):
         add_define(
@@ -256,7 +247,8 @@ async def to_code(configs):
             type=lv_font_t.operator("ptr").operator("const"),
         )
         cg.new_variable(
-            globfont_id, MockObj(await lvalid.lv_font.process(default_font))
+            globfont_id,
+            MockObj(await lvalid.lv_font.process(default_font), "->").get_lv_font(),
         )
         add_define("LV_FONT_DEFAULT", df.DEFAULT_ESPHOME_FONT)
     else:

esphome/components/lvgl/font.cpp

@@ -1,76 +0,0 @@
-#include "lvgl_esphome.h"
-
-#ifdef USE_LVGL_FONT
-namespace esphome {
-namespace lvgl {
-
-static const uint8_t *get_glyph_bitmap(const lv_font_t *font, uint32_t unicode_letter) {
-  auto *fe = (FontEngine *) font->dsc;
-  const auto *gd = fe->get_glyph_data(unicode_letter);
-  if (gd == nullptr)
-    return nullptr;
-  // esph_log_d(TAG, "Returning bitmap @  %X", (uint32_t)gd->data);
-
-  return gd->data;
-}
-
-static bool get_glyph_dsc_cb(const lv_font_t *font, lv_font_glyph_dsc_t *dsc, uint32_t unicode_letter, uint32_t next) {
-  auto *fe = (FontEngine *) font->dsc;
-  const auto *gd = fe->get_glyph_data(unicode_letter);
-  if (gd == nullptr)
-    return false;
-  dsc->adv_w = gd->advance;
-  dsc->ofs_x = gd->offset_x;
-  dsc->ofs_y = fe->height - gd->height - gd->offset_y - fe->baseline;
-  dsc->box_w = gd->width;
-  dsc->box_h = gd->height;
-  dsc->is_placeholder = 0;
-  dsc->bpp = fe->bpp;
-  return true;
-}
-
-FontEngine::FontEngine(font::Font *esp_font) : font_(esp_font) {
-  this->bpp = esp_font->get_bpp();
-  this->lv_font_.dsc = this;
-  this->lv_font_.line_height = this->height = esp_font->get_height();
-  this->lv_font_.base_line = this->baseline = this->lv_font_.line_height - esp_font->get_baseline();
-  this->lv_font_.get_glyph_dsc = get_glyph_dsc_cb;
-  this->lv_font_.get_glyph_bitmap = get_glyph_bitmap;
-  this->lv_font_.subpx = LV_FONT_SUBPX_NONE;
-  this->lv_font_.underline_position = -1;
-  this->lv_font_.underline_thickness = 1;
-}
-
-const lv_font_t *FontEngine::get_lv_font() { return &this->lv_font_; }
-
-const font::GlyphData *FontEngine::get_glyph_data(uint32_t unicode_letter) {
-  if (unicode_letter == last_letter_)
-    return this->last_data_;
-  uint8_t unicode[5];
-  memset(unicode, 0, sizeof unicode);
-  if (unicode_letter > 0xFFFF) {
-    unicode[0] = 0xF0 + ((unicode_letter >> 18) & 0x7);
-    unicode[1] = 0x80 + ((unicode_letter >> 12) & 0x3F);
-    unicode[2] = 0x80 + ((unicode_letter >> 6) & 0x3F);
-    unicode[3] = 0x80 + (unicode_letter & 0x3F);
-  } else if (unicode_letter > 0x7FF) {
-    unicode[0] = 0xE0 + ((unicode_letter >> 12) & 0xF);
-    unicode[1] = 0x80 + ((unicode_letter >> 6) & 0x3F);
-    unicode[2] = 0x80 + (unicode_letter & 0x3F);
-  } else if (unicode_letter > 0x7F) {
-    unicode[0] = 0xC0 + ((unicode_letter >> 6) & 0x1F);
-    unicode[1] = 0x80 + (unicode_letter & 0x3F);
-  } else {
-    unicode[0] = unicode_letter;
-  }
-  int match_length;
-  int glyph_n = this->font_->match_next_glyph(unicode, &match_length);
-  if (glyph_n < 0)
-    return nullptr;
-  this->last_data_ = this->font_->get_glyphs()[glyph_n].get_glyph_data();
-  this->last_letter_ = unicode_letter;
-  return this->last_data_;
-}
-}  // namespace lvgl
-}  // namespace esphome
-#endif  // USES_LVGL_FONT

esphome/components/lvgl/layout.py

@@ -36,8 +36,6 @@ from .defines import (
 )
 from .lv_validation import padding, size
 
-CONF_MULTIPLE_WIDGETS_PER_CELL = "multiple_widgets_per_cell"
-
 cell_alignments = LV_CELL_ALIGNMENTS.one_of
 grid_alignments = LV_GRID_ALIGNMENTS.one_of
 flex_alignments = LV_FLEX_ALIGNMENTS.one_of
@@ -222,7 +220,6 @@ class GridLayout(Layout):
                 cv.Optional(CONF_GRID_ROW_ALIGN): grid_alignments,
                 cv.Optional(CONF_PAD_ROW): padding,
                 cv.Optional(CONF_PAD_COLUMN): padding,
-                cv.Optional(CONF_MULTIPLE_WIDGETS_PER_CELL, default=False): cv.boolean,
             },
             {
                 cv.Optional(CONF_GRID_CELL_ROW_POS): cv.positive_int,
@@ -266,7 +263,6 @@ class GridLayout(Layout):
         # should be guaranteed to be a dict at this point
         assert isinstance(layout, dict)
         assert layout.get(CONF_TYPE).lower() == TYPE_GRID
-        allow_multiple = layout.get(CONF_MULTIPLE_WIDGETS_PER_CELL, False)
         rows = len(layout[CONF_GRID_ROWS])
         columns = len(layout[CONF_GRID_COLUMNS])
         used_cells = [[None] * columns for _ in range(rows)]
@@ -303,10 +299,7 @@ class GridLayout(Layout):
                             f"exceeds grid size {rows}x{columns}",
                             [CONF_WIDGETS, index],
                         )
-                    if (
-                        not allow_multiple
-                        and used_cells[row + i][column + j] is not None
-                    ):
+                    if used_cells[row + i][column + j] is not None:
                         raise cv.Invalid(
                             f"Cell span {row + i}/{column + j} already occupied by widget at index {used_cells[row + i][column + j]}",
                             [CONF_WIDGETS, index],

esphome/components/lvgl/lv_validation.py

@@ -493,6 +493,7 @@ class LvFont(LValidator):
                 return LV_FONTS
             if is_lv_font(value):
                 return lv_builtin_font(value)
+            add_lv_use("font")
             fontval = cv.use_id(Font)(value)
             esphome_fonts_used.add(fontval)
             return requires_component("font")(fontval)
@@ -502,7 +503,9 @@ class LvFont(LValidator):
     async def process(self, value, args=()):
         if is_lv_font(value):
             return literal(f"&lv_font_{value}")
-        return literal(f"{value}_engine->get_lv_font()")
+        if isinstance(value, str):
+            return literal(f"{value}")
+        return await super().process(value, args)
 
 
 lv_font = LvFont()

esphome/components/lvgl/lvgl_esphome.h

@@ -50,6 +50,14 @@ static const display::ColorBitness LV_BITNESS = display::ColorBitness::COLOR_BIT
 static const display::ColorBitness LV_BITNESS = display::ColorBitness::COLOR_BITNESS_332;
 #endif  // LV_COLOR_DEPTH
 
+#ifdef USE_LVGL_FONT
+inline void lv_obj_set_style_text_font(lv_obj_t *obj, const font::Font *font, lv_style_selector_t part) {
+  lv_obj_set_style_text_font(obj, font->get_lv_font(), part);
+}
+inline void lv_style_set_text_font(lv_style_t *style, const font::Font *font) {
+  lv_style_set_text_font(style, font->get_lv_font());
+}
+#endif
 #ifdef USE_LVGL_IMAGE
 // Shortcut / overload, so that the source of an image can easily be updated
 // from within a lambda.
@@ -134,24 +142,6 @@ template<typename... Ts> class ObjUpdateAction : public Action<Ts...> {
  protected:
   std::function<void(Ts...)> lamb_;
 };
-#ifdef USE_LVGL_FONT
-class FontEngine {
- public:
-  FontEngine(font::Font *esp_font);
-  const lv_font_t *get_lv_font();
-
-  const font::GlyphData *get_glyph_data(uint32_t unicode_letter);
-  uint16_t baseline{};
-  uint16_t height{};
-  uint8_t bpp{};
-
- protected:
-  font::Font *font_{};
-  uint32_t last_letter_{};
-  const font::GlyphData *last_data_{};
-  lv_font_t lv_font_{};
-};
-#endif  // USE_LVGL_FONT
 #ifdef USE_LVGL_ANIMIMG
 void lv_animimg_stop(lv_obj_t *obj);
 #endif  // USE_LVGL_ANIMIMG

esphome/components/lvgl/schemas.py

@@ -1,7 +1,6 @@
 from esphome import config_validation as cv
 from esphome.automation import Trigger, validate_automation
 from esphome.components.time import RealTimeClock
-from esphome.config_validation import prepend_path
 from esphome.const import (
     CONF_ARGS,
     CONF_FORMAT,
@@ -423,10 +422,7 @@ def any_widget_schema(extras=None):
     def validator(value):
         if isinstance(value, dict):
             # Convert to list
-            is_dict = True
             value = [{k: v} for k, v in value.items()]
-        else:
-            is_dict = False
         if not isinstance(value, list):
             raise cv.Invalid("Expected a list of widgets")
         result = []
@@ -447,9 +443,7 @@ def any_widget_schema(extras=None):
                 )
             # Apply custom validation
             value = widget_type.validate(value or {})
-            path = [key] if is_dict else [index, key]
-            with prepend_path(path):
-                result.append({key: container_validator(value)})
+            result.append({key: container_validator(value)})
         return result
 
     return validator

esphome/components/lvgl/types.py

@@ -45,7 +45,6 @@ lv_coord_t = cg.global_ns.namespace("lv_coord_t")
 lv_event_code_t = cg.global_ns.enum("lv_event_code_t")
 lv_indev_type_t = cg.global_ns.enum("lv_indev_type_t")
 lv_key_t = cg.global_ns.enum("lv_key_t")
-FontEngine = lvgl_ns.class_("FontEngine")
 PlainTrigger = esphome_ns.class_("Trigger<>", automation.Trigger.template())
 DrawEndTrigger = esphome_ns.class_(
     "Trigger<uint32_t, uint32_t>", automation.Trigger.template(cg.uint32, cg.uint32)

esphome/components/mdns/mdns_component.cpp

@@ -119,7 +119,7 @@ void MDNSComponent::compile_records_(StaticVector<MDNSService, MDNS_SERVICE_COUN
     MDNS_STATIC_CONST_CHAR(TXT_API_ENCRYPTION, "api_encryption");
     MDNS_STATIC_CONST_CHAR(TXT_API_ENCRYPTION_SUPPORTED, "api_encryption_supported");
     MDNS_STATIC_CONST_CHAR(NOISE_ENCRYPTION, "Noise_NNpsk0_25519_ChaChaPoly_SHA256");
-    bool has_psk = api::global_api_server->get_noise_ctx()->has_psk();
+    bool has_psk = api::global_api_server->get_noise_ctx().has_psk();
     const char *encryption_key = has_psk ? TXT_API_ENCRYPTION : TXT_API_ENCRYPTION_SUPPORTED;
     txt_records.push_back({MDNS_STR(encryption_key), MDNS_STR(NOISE_ENCRYPTION)});
 #endif
@@ -135,8 +135,7 @@ void MDNSComponent::compile_records_(StaticVector<MDNSService, MDNS_SERVICE_COUN
 
 #ifdef USE_DASHBOARD_IMPORT
     MDNS_STATIC_CONST_CHAR(TXT_PACKAGE_IMPORT_URL, "package_import_url");
-    txt_records.push_back(
-        {MDNS_STR(TXT_PACKAGE_IMPORT_URL), MDNS_STR(dashboard_import::get_package_import_url().c_str())});
+    txt_records.push_back({MDNS_STR(TXT_PACKAGE_IMPORT_URL), MDNS_STR(dashboard_import::get_package_import_url())});
 #endif
   }
 #endif  // USE_API

esphome/components/mipi_dsi/mipi_dsi.cpp

@@ -11,12 +11,6 @@ static bool notify_refresh_ready(esp_lcd_panel_handle_t panel, esp_lcd_dpi_panel
   xSemaphoreGiveFromISR(sem, &need_yield);
   return (need_yield == pdTRUE);
 }
-
-void MIPI_DSI::smark_failed(const char *message, esp_err_t err) {
-  ESP_LOGE(TAG, "%s: %s", message, esp_err_to_name(err));
-  this->mark_failed(message);
-}
-
 void MIPI_DSI::setup() {
   ESP_LOGCONFIG(TAG, "Running Setup");
 

esphome/components/mipi_dsi/mipi_dsi.h

@@ -62,7 +62,10 @@ class MIPI_DSI : public display::Display {
   void set_lanes(uint8_t lanes) { this->lanes_ = lanes; }
   void set_madctl(uint8_t madctl) { this->madctl_ = madctl; }
 
-  void smark_failed(const char *message, esp_err_t err);
+  void smark_failed(const char *message, esp_err_t err) {
+    auto str = str_sprintf("Setup failed: %s: %s", message, esp_err_to_name(err));
+    this->mark_failed(str.c_str());
+  }
 
   void update() override;
 

esphome/components/mipi_rgb/mipi_rgb.cpp

@@ -164,8 +164,8 @@ void MipiRgb::common_setup_() {
   if (err == ESP_OK)
     err = esp_lcd_panel_init(this->handle_);
   if (err != ESP_OK) {
-    ESP_LOGE(TAG, "lcd setup failed: %s", esp_err_to_name(err));
-    this->mark_failed("lcd setup failed");
+    auto msg = str_sprintf("lcd setup failed: %s", esp_err_to_name(err));
+    this->mark_failed(msg.c_str());
   }
   ESP_LOGCONFIG(TAG, "MipiRgb setup complete");
 }

esphome/components/mopeka_pro_check/mopeka_pro_check.cpp

@@ -116,7 +116,7 @@ bool MopekaProCheck::parse_device(const esp32_ble_tracker::ESPBTDevice &device)
 
   // Get temperature of sensor
   if (this->temperature_ != nullptr) {
-    int8_t temp_in_c = this->parse_temperature_(manu_data.data);
+    uint8_t temp_in_c = this->parse_temperature_(manu_data.data);
     this->temperature_->publish_state(temp_in_c);
   }
 
@@ -145,7 +145,7 @@ uint32_t MopekaProCheck::parse_distance_(const std::vector<uint8_t> &message) {
                      (MOPEKA_LPG_COEF[0] + MOPEKA_LPG_COEF[1] * raw_t + MOPEKA_LPG_COEF[2] * raw_t * raw_t));
 }
 
-int8_t MopekaProCheck::parse_temperature_(const std::vector<uint8_t> &message) { return (message[2] & 0x7F) - 40; }
+uint8_t MopekaProCheck::parse_temperature_(const std::vector<uint8_t> &message) { return (message[2] & 0x7F) - 40; }
 
 SensorReadQuality MopekaProCheck::parse_read_quality_(const std::vector<uint8_t> &message) {
   // Since a 8 bit value is being shifted and truncated to 2 bits all possible values are defined as enumeration

esphome/components/mopeka_pro_check/mopeka_pro_check.h

@@ -61,7 +61,7 @@ class MopekaProCheck : public Component, public esp32_ble_tracker::ESPBTDeviceLi
 
   uint8_t parse_battery_level_(const std::vector<uint8_t> &message);
   uint32_t parse_distance_(const std::vector<uint8_t> &message);
-  int8_t parse_temperature_(const std::vector<uint8_t> &message);
+  uint8_t parse_temperature_(const std::vector<uint8_t> &message);
   SensorReadQuality parse_read_quality_(const std::vector<uint8_t> &message);
 };
 

esphome/components/mqtt/mqtt_client.cpp

@@ -140,7 +140,7 @@ void MQTTClientComponent::send_device_info_() {
 #endif
 
 #ifdef USE_API_NOISE
-        root[api::global_api_server->get_noise_ctx()->has_psk() ? "api_encryption" : "api_encryption_supported"] =
+        root[api::global_api_server->get_noise_ctx().has_psk() ? "api_encryption" : "api_encryption_supported"] =
             "Noise_NNpsk0_25519_ChaChaPoly_SHA256";
 #endif
       },

esphome/components/network/ip_address.h

@@ -81,12 +81,7 @@ struct IPAddress {
     ip_addr_.type = IPADDR_TYPE_V6;
   }
 #endif /* LWIP_IPV6 */
-  IPAddress(esp_ip4_addr_t *other_ip) {
-    memcpy((void *) &ip_addr_, (void *) other_ip, sizeof(esp_ip4_addr_t));
-#if LWIP_IPV6
-    ip_addr_.type = IPADDR_TYPE_V4;
-#endif
-  }
+  IPAddress(esp_ip4_addr_t *other_ip) { memcpy((void *) &ip_addr_, (void *) other_ip, sizeof(esp_ip4_addr_t)); }
   IPAddress(esp_ip_addr_t *other_ip) {
 #if LWIP_IPV6
     memcpy((void *) &ip_addr_, (void *) other_ip, sizeof(ip_addr_));
@@ -123,10 +118,10 @@ struct IPAddress {
   operator arduino_ns::IPAddress() const { return ip_addr_get_ip4_u32(&ip_addr_); }
 #endif
 
-  bool is_set() { return !ip_addr_isany(&ip_addr_); }  // NOLINT(readability-simplify-boolean-expr)
-  bool is_ip4() { return IP_IS_V4(&ip_addr_); }
-  bool is_ip6() { return IP_IS_V6(&ip_addr_); }
-  bool is_multicast() { return ip_addr_ismulticast(&ip_addr_); }
+  bool is_set() const { return !ip_addr_isany(&ip_addr_); }  // NOLINT(readability-simplify-boolean-expr)
+  bool is_ip4() const { return IP_IS_V4(&ip_addr_); }
+  bool is_ip6() const { return IP_IS_V6(&ip_addr_); }
+  bool is_multicast() const { return ip_addr_ismulticast(&ip_addr_); }
   std::string str() const { return str_lower_case(ipaddr_ntoa(&ip_addr_)); }
   bool operator==(const IPAddress &other) const { return ip_addr_cmp(&ip_addr_, &other.ip_addr_); }
   bool operator!=(const IPAddress &other) const { return !ip_addr_cmp(&ip_addr_, &other.ip_addr_); }

esphome/components/nextion/nextion_upload_arduino.cpp

@@ -174,9 +174,6 @@ bool Nextion::upload_tft(uint32_t baud_rate, bool exit_reparse) {
 
   // Check if baud rate is supported
   this->original_baud_rate_ = this->parent_->get_baud_rate();
-  if (baud_rate <= 0) {
-    baud_rate = this->original_baud_rate_;
-  }
   ESP_LOGD(TAG, "Baud rate: %" PRIu32, baud_rate);
 
   // Define the configuration for the HTTP client

esphome/components/nextion/nextion_upload_idf.cpp

@@ -177,9 +177,6 @@ bool Nextion::upload_tft(uint32_t baud_rate, bool exit_reparse) {
 
   // Check if baud rate is supported
   this->original_baud_rate_ = this->parent_->get_baud_rate();
-  if (baud_rate <= 0) {
-    baud_rate = this->original_baud_rate_;
-  }
   ESP_LOGD(TAG, "Baud rate: %" PRIu32, baud_rate);
 
   // Define the configuration for the HTTP client

esphome/components/nrf52/__init__.py

@@ -103,6 +103,7 @@ nrf52_ns = cg.esphome_ns.namespace("nrf52")
 DeviceFirmwareUpdate = nrf52_ns.class_("DeviceFirmwareUpdate", cg.Component)
 
 CONF_DFU = "dfu"
+CONF_DCDC = "dcdc"
 CONF_REG0 = "reg0"
 CONF_UICR_ERASE = "uicr_erase"
 
@@ -121,6 +122,7 @@ CONFIG_SCHEMA = cv.All(
                     cv.Required(CONF_RESET_PIN): pins.gpio_output_pin_schema,
                 }
             ),
+            cv.Optional(CONF_DCDC, default=True): cv.boolean,
             cv.Optional(CONF_REG0): cv.Schema(
                 {
                     cv.Required(CONF_VOLTAGE): cv.All(
@@ -196,6 +198,7 @@ async def to_code(config: ConfigType) -> None:
 
     if dfu_config := config.get(CONF_DFU):
         CORE.add_job(_dfu_to_code, dfu_config)
+    zephyr_add_prj_conf("BOARD_ENABLE_DCDC", config[CONF_DCDC])
 
     if reg0_config := config.get(CONF_REG0):
         value = VOLTAGE_LEVELS.index(reg0_config[CONF_VOLTAGE])

esphome/components/number/automation.cpp

@@ -1,8 +1,7 @@
 #include "automation.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 static const char *const TAG = "number.automation";
 
@@ -52,5 +51,4 @@ void ValueRangeTrigger::on_state_(float state) {
   this->rtc_.save(&in_range);
 }
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/automation.h

@@ -4,8 +4,7 @@
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 class NumberStateTrigger : public Trigger<float> {
  public:
@@ -91,5 +90,4 @@ template<typename... Ts> class NumberInRangeCondition : public Condition<Ts...>
   float max_{NAN};
 };
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/number.cpp

@@ -3,8 +3,7 @@
 #include "esphome/core/controller_registry.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 static const char *const TAG = "number";
 
@@ -43,5 +42,4 @@ void Number::add_on_state_callback(std::function<void(float)> &&callback) {
   this->state_callback_.add(std::move(callback));
 }
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/number.h

@@ -6,8 +6,7 @@
 #include "number_call.h"
 #include "number_traits.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 class Number;
 void log_number(const char *tag, const char *prefix, const char *type, Number *obj);
@@ -53,5 +52,4 @@ class Number : public EntityBase {
   CallbackManager<void(float)> state_callback_;
 };
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/number_call.cpp

@@ -2,8 +2,7 @@
 #include "number.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 static const char *const TAG = "number";
 
@@ -125,5 +124,4 @@ void NumberCall::perform() {
   this->parent_->control(target_value);
 }
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/number_call.h

@@ -4,8 +4,7 @@
 #include "esphome/core/log.h"
 #include "number_traits.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 class Number;
 
@@ -44,5 +43,4 @@ class NumberCall {
   bool cycle_;
 };
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/number_traits.cpp

@@ -1,10 +1,8 @@
 #include "esphome/core/log.h"
 #include "number_traits.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 static const char *const TAG = "number";
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/number/number_traits.h

@@ -3,8 +3,7 @@
 #include "esphome/core/entity_base.h"
 #include "esphome/core/helpers.h"
 
-namespace esphome {
-namespace number {
+namespace esphome::number {
 
 enum NumberMode : uint8_t {
   NUMBER_MODE_AUTO = 0,
@@ -35,5 +34,4 @@ class NumberTraits : public EntityBase_DeviceClass, public EntityBase_UnitOfMeas
   NumberMode mode_{NUMBER_MODE_AUTO};
 };
 
-}  // namespace number
-}  // namespace esphome
+}  // namespace esphome::number

esphome/components/online_image/png_image.cpp

@@ -2,7 +2,6 @@
 #ifdef USE_ONLINE_IMAGE_PNG_SUPPORT
 
 #include "esphome/components/display/display_buffer.h"
-#include "esphome/core/application.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 
@@ -39,14 +38,6 @@ static void draw_callback(pngle_t *pngle, uint32_t x, uint32_t y, uint32_t w, ui
   PngDecoder *decoder = (PngDecoder *) pngle_get_user_data(pngle);
   Color color(rgba[0], rgba[1], rgba[2], rgba[3]);
   decoder->draw(x, y, w, h, color);
-
-  // Feed watchdog periodically to avoid triggering during long decode operations.
-  // Feed every 1024 pixels to balance efficiency and responsiveness.
-  uint32_t pixels = w * h;
-  decoder->increment_pixels_decoded(pixels);
-  if ((decoder->get_pixels_decoded() % 1024) < pixels) {
-    App.feed_wdt();
-  }
 }
 
 PngDecoder::PngDecoder(OnlineImage *image) : ImageDecoder(image) {

esphome/components/online_image/png_image.h

@@ -25,13 +25,9 @@ class PngDecoder : public ImageDecoder {
   int prepare(size_t download_size) override;
   int HOT decode(uint8_t *buffer, size_t size) override;
 
-  void increment_pixels_decoded(uint32_t count) { this->pixels_decoded_ += count; }
-  uint32_t get_pixels_decoded() const { return this->pixels_decoded_; }
-
  protected:
   RAMAllocator<pngle_t> allocator_;
   pngle_t *pngle_;
-  uint32_t pixels_decoded_{0};
 };
 
 }  // namespace online_image

esphome/components/packet_transport/packet_transport.cpp

@@ -195,8 +195,8 @@ static void add(std::vector<uint8_t> &vec, const char *str) {
 void PacketTransport::setup() {
   this->name_ = App.get_name().c_str();
   if (strlen(this->name_) > 255) {
-    this->status_set_error("Device name exceeds 255 chars");
     this->mark_failed();
+    this->status_set_error("Device name exceeds 255 chars");
     return;
   }
   this->resend_ping_key_ = this->ping_pong_enable_;

esphome/components/rtl87xx/__init__.py

@@ -6,13 +6,10 @@
 # in schema.py file in this directory.
 
 from esphome import pins
-import esphome.codegen as cg
 from esphome.components import libretiny
 from esphome.components.libretiny.const import (
     COMPONENT_RTL87XX,
-    FAMILY_RTL8710B,
     KEY_COMPONENT_DATA,
-    KEY_FAMILY,
     KEY_LIBRETINY,
     LibreTinyComponent,
 )
@@ -48,11 +45,6 @@ CONFIG_SCHEMA.prepend_extra(_set_core_data)
 
 
 async def to_code(config):
-    # Use FreeRTOS 8.2.3+ for xTaskNotifyGive/ulTaskNotifyTake required by AsyncTCP 3.4.3+
-    # https://github.com/esphome/esphome/issues/10220
-    # Only for RTL8710B (ambz) - RTL8720C (ambz2) requires FreeRTOS 10.x
-    if CORE.data[KEY_LIBRETINY][KEY_FAMILY] == FAMILY_RTL8710B:
-        cg.add_platformio_option("custom_versions.freertos", "8.2.3")
     return await libretiny.component_to_code(config)
 
 

esphome/components/script/script.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include <list>
 #include <memory>
 #include <tuple>
+#include <forward_list>
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
@@ -278,12 +278,7 @@ template<class C, typename... Ts> class ScriptWaitAction : public Action<Ts...>,
 
   void setup() override {
     // Start with loop disabled - only enable when there's work to do
-    // IMPORTANT: Only disable if num_running_ is 0, otherwise play_complex() was already
-    // called before our setup() (e.g., from on_boot trigger at same priority level)
-    // and we must not undo its enable_loop() call
-    if (this->num_running_ == 0) {
-      this->disable_loop();
-    }
+    this->disable_loop();
   }
 
   void play_complex(const Ts &...x) override {
@@ -295,10 +290,10 @@ template<class C, typename... Ts> class ScriptWaitAction : public Action<Ts...>,
     }
 
     // Store parameters for later execution
-    this->param_queue_.emplace_back(x...);
-    // Enable loop now that we have work to do - don't call loop() synchronously!
-    // Let the event loop call it to avoid reentrancy issues
+    this->param_queue_.emplace_front(x...);
+    // Enable loop now that we have work to do
     this->enable_loop();
+    this->loop();
   }
 
   void loop() override {
@@ -308,17 +303,13 @@ template<class C, typename... Ts> class ScriptWaitAction : public Action<Ts...>,
     if (this->script_->is_running())
       return;
 
-    // Only process ONE queued item per loop iteration
-    // Processing all items in a while loop causes infinite loops because
-    // play_next_() can trigger more items to be queued
-    if (!this->param_queue_.empty()) {
+    while (!this->param_queue_.empty()) {
       auto &params = this->param_queue_.front();
       this->play_next_tuple_(params, typename gens<sizeof...(Ts)>::type());
       this->param_queue_.pop_front();
-    } else {
-      // Queue is now empty - disable loop until next play_complex
-      this->disable_loop();
     }
+    // Queue is now empty - disable loop until next play_complex
+    this->disable_loop();
   }
 
   void play(const Ts &...x) override { /* ignore - see play_complex */
@@ -335,7 +326,7 @@ template<class C, typename... Ts> class ScriptWaitAction : public Action<Ts...>,
   }
 
   C *script_;
-  std::list<std::tuple<Ts...>> param_queue_;
+  std::forward_list<std::tuple<Ts...>> param_queue_;
 };
 
 }  // namespace script

esphome/components/text_sensor/filter.cpp

@@ -66,14 +66,10 @@ SubstituteFilter::SubstituteFilter(const std::initializer_list<Substitution> &su
     : substitutions_(substitutions) {}
 
 optional<std::string> SubstituteFilter::new_value(std::string value) {
+  std::size_t pos;
   for (const auto &sub : this->substitutions_) {
-    std::size_t pos = 0;
-    while ((pos = value.find(sub.from, pos)) != std::string::npos) {
+    while ((pos = value.find(sub.from)) != std::string::npos)
       value.replace(pos, sub.from.size(), sub.to);
-      // Advance past the replacement to avoid infinite loop when
-      // the replacement contains the search pattern (e.g., f -> foo)
-      pos += sub.to.size();
-    }
   }
   return value;
 }

esphome/components/udp/udp_component.cpp

@@ -21,8 +21,8 @@ void UDPComponent::setup() {
   if (this->should_broadcast_) {
     this->broadcast_socket_ = socket::socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
     if (this->broadcast_socket_ == nullptr) {
-      this->status_set_error("Could not create socket");
       this->mark_failed();
+      this->status_set_error("Could not create socket");
       return;
     }
     int enable = 1;
@@ -41,15 +41,15 @@ void UDPComponent::setup() {
   if (this->should_listen_) {
     this->listen_socket_ = socket::socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
     if (this->listen_socket_ == nullptr) {
-      this->status_set_error("Could not create socket");
       this->mark_failed();
+      this->status_set_error("Could not create socket");
       return;
     }
     auto err = this->listen_socket_->setblocking(false);
     if (err < 0) {
       ESP_LOGE(TAG, "Unable to set nonblocking: errno %d", errno);
-      this->status_set_error("Unable to set nonblocking");
       this->mark_failed();
+      this->status_set_error("Unable to set nonblocking");
       return;
     }
     int enable = 1;
@@ -73,8 +73,8 @@ void UDPComponent::setup() {
       err = this->listen_socket_->setsockopt(IPPROTO_IP, IP_ADD_MEMBERSHIP, &imreq, sizeof(imreq));
       if (err < 0) {
         ESP_LOGE(TAG, "Failed to set IP_ADD_MEMBERSHIP. Error %d", errno);
-        this->status_set_error("Failed to set IP_ADD_MEMBERSHIP");
         this->mark_failed();
+        this->status_set_error("Failed to set IP_ADD_MEMBERSHIP");
         return;
       }
     }
@@ -82,8 +82,8 @@ void UDPComponent::setup() {
     err = this->listen_socket_->bind((struct sockaddr *) &server, sizeof(server));
     if (err != 0) {
       ESP_LOGE(TAG, "Socket unable to bind: errno %d", errno);
-      this->status_set_error("Unable to bind socket");
       this->mark_failed();
+      this->status_set_error("Unable to bind socket");
       return;
     }
   }

esphome/components/usb_uart/__init__.py

@@ -1,5 +1,4 @@
 import esphome.codegen as cg
-from esphome.components import socket
 from esphome.components.uart import (
     CONF_DATA_BITS,
     CONF_PARITY,
@@ -18,7 +17,7 @@ from esphome.const import (
 )
 from esphome.cpp_types import Component
 
-AUTO_LOAD = ["uart", "usb_host", "bytebuffer", "socket"]
+AUTO_LOAD = ["uart", "usb_host", "bytebuffer"]
 CODEOWNERS = ["@clydebarrow"]
 
 usb_uart_ns = cg.esphome_ns.namespace("usb_uart")
@@ -117,10 +116,6 @@ CONFIG_SCHEMA = cv.ensure_list(
 
 
 async def to_code(config):
-    # Enable wake_loop_threadsafe for low-latency USB data processing
-    # The USB task queues data events that need immediate processing
-    socket.require_wake_loop_threadsafe()
-
     for device in config:
         var = await register_usb_client(device)
         for index, channel in enumerate(device[CONF_CHANNELS]):

esphome/components/usb_uart/usb_uart.cpp

@@ -2,7 +2,6 @@
 #if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3) || defined(USE_ESP32_VARIANT_ESP32P4)
 #include "usb_uart.h"
 #include "esphome/core/log.h"
-#include "esphome/core/application.h"
 #include "esphome/components/uart/uart_debugger.h"
 
 #include <cinttypes>
@@ -263,11 +262,6 @@ void USBUartComponent::start_input(USBUartChannel *channel) {
       // Push to lock-free queue for main loop processing
       // Push always succeeds because pool size == queue size
       this->usb_data_queue_.push(chunk);
-
-      // Wake main loop immediately to process USB data instead of waiting for select() timeout
-#if defined(USE_SOCKET_SELECT_SUPPORT) && defined(USE_WAKE_LOOP_THREADSAFE)
-      App.wake_loop_threadsafe();
-#endif
     }
 
     // On success, restart input immediately from USB task for performance

esphome/components/wake_on_lan/wake_on_lan.cpp

@@ -67,8 +67,8 @@ void WakeOnLanButton::setup() {
 #if defined(USE_SOCKET_IMPL_BSD_SOCKETS) || defined(USE_SOCKET_IMPL_LWIP_SOCKETS)
   this->broadcast_socket_ = socket::socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
   if (this->broadcast_socket_ == nullptr) {
-    this->status_set_error("Could not create socket");
     this->mark_failed();
+    this->status_set_error("Could not create socket");
     return;
   }
   int enable = 1;

esphome/components/web_server_idf/web_server_idf.cpp

@@ -87,29 +87,6 @@ int nonblocking_send(httpd_handle_t hd, int sockfd, const char *buf, size_t buf_
 }
 }  // namespace
 
-void AsyncWebServer::safe_close_with_shutdown(httpd_handle_t hd, int sockfd) {
-  // CRITICAL: Shut down receive BEFORE closing to prevent lwIP race conditions
-  //
-  // The race condition occurs because close() initiates lwIP teardown while
-  // the TCP/IP thread can still receive packets, causing assertions when
-  // recv_tcp() sees partially-torn-down state.
-  //
-  // By shutting down receive first, we tell lwIP to stop accepting new data BEFORE
-  // the teardown begins, eliminating the race window. We only shutdown RD (not RDWR)
-  // to allow the FIN packet to be sent cleanly during close().
-  //
-  // Note: This function may be called with an already-closed socket if the network
-  // stack closed it. In that case, shutdown() will fail but close() is safe to call.
-  //
-  // See: https://github.com/esphome/esphome-webserver/issues/163
-
-  // Attempt shutdown - ignore errors as socket may already be closed
-  shutdown(sockfd, SHUT_RD);
-
-  // Always close - safe even if socket is already closed by network stack
-  close(sockfd);
-}
-
 void AsyncWebServer::end() {
   if (this->server_) {
     httpd_stop(this->server_);
@@ -138,8 +115,6 @@ void AsyncWebServer::begin() {
   config.uri_match_fn = [](const char * /*unused*/, const char * /*unused*/, size_t /*unused*/) { return true; };
   // Enable LRU purging if requested (e.g., by captive portal to handle probe bursts)
   config.lru_purge_enable = this->lru_purge_enable_;
-  // Use custom close function that shuts down before closing to prevent lwIP race conditions
-  config.close_fn = AsyncWebServer::safe_close_with_shutdown;
   if (httpd_start(&this->server_, &config) == ESP_OK) {
     const httpd_uri_t handler_get = {
         .uri = "",
@@ -530,11 +505,17 @@ AsyncEventSourceResponse::AsyncEventSourceResponse(const AsyncWebServerRequest *
 void AsyncEventSourceResponse::destroy(void *ptr) {
   auto *rsp = static_cast<AsyncEventSourceResponse *>(ptr);
   int fd = rsp->fd_.exchange(0);  // Atomically get and clear fd
-  ESP_LOGD(TAG, "Event source connection closed (fd: %d)", fd);
-  // Mark as dead - will be cleaned up in the main loop
-  // Note: We don't delete or remove from set here to avoid race conditions
-  // httpd will call our custom close_fn (safe_close_with_shutdown) which handles
-  // shutdown() before close() to prevent lwIP race conditions
+
+  if (fd > 0) {
+    ESP_LOGD(TAG, "Event source connection closed (fd: %d)", fd);
+    // Immediately shut down the socket to prevent lwIP from delivering more data
+    // This prevents "recv_tcp: recv for wrong pcb!" assertions when the TCP stack
+    // tries to deliver queued data after the session is marked as dead
+    // See: https://github.com/esphome/esphome/issues/11936
+    shutdown(fd, SHUT_RDWR);
+    // Note: We don't close() the socket - httpd owns it and will close it
+  }
+  // Session will be cleaned up in the main loop to avoid race conditions
 }
 
 // helper for allowing only unique entries in the queue

esphome/components/web_server_idf/web_server_idf.h

@@ -209,7 +209,6 @@ class AsyncWebServer {
   static esp_err_t request_handler(httpd_req_t *r);
   static esp_err_t request_post_handler(httpd_req_t *r);
   esp_err_t request_handler_(AsyncWebServerRequest *request) const;
-  static void safe_close_with_shutdown(httpd_handle_t hd, int sockfd);
 #ifdef USE_WEBSERVER_OTA
   esp_err_t handle_multipart_upload_(httpd_req_t *r, const char *content_type);
 #endif

esphome/components/wifi/__init__.py

@@ -485,11 +485,14 @@ async def to_code(config):
         cg.add(var.set_min_auth_mode(config[CONF_MIN_AUTH_MODE]))
     if config[CONF_FAST_CONNECT]:
         cg.add_define("USE_WIFI_FAST_CONNECT")
-    cg.add(var.set_passive_scan(config[CONF_PASSIVE_SCAN]))
+    # passive_scan defaults to false in C++ - only set if true
+    if config[CONF_PASSIVE_SCAN]:
+        cg.add(var.set_passive_scan(True))
     if CONF_OUTPUT_POWER in config:
         cg.add(var.set_output_power(config[CONF_OUTPUT_POWER]))
-
-    cg.add(var.set_enable_on_boot(config[CONF_ENABLE_ON_BOOT]))
+    # enable_on_boot defaults to true in C++ - only set if false
+    if not config[CONF_ENABLE_ON_BOOT]:
+        cg.add(var.set_enable_on_boot(False))
 
     if CORE.is_esp8266:
         cg.add_library("ESP8266WiFi", None)

esphome/components/wifi/wifi_component.cpp

@@ -696,25 +696,25 @@ void WiFiComponent::connect_soon_() {
 
 void WiFiComponent::start_connecting(const WiFiAP &ap) {
   // Log connection attempt at INFO level with priority
-  std::string bssid_formatted;
+  char bssid_s[18];
   int8_t priority = 0;
 
   if (ap.get_bssid().has_value()) {
-    bssid_formatted = format_mac_address_pretty(ap.get_bssid().value().data());
+    format_mac_addr_upper(ap.get_bssid().value().data(), bssid_s);
     priority = this->get_sta_priority(ap.get_bssid().value());
   }
 
   ESP_LOGI(TAG,
            "Connecting to " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") " (priority %d, attempt %u/%u in phase %s)...",
-           ap.get_ssid().c_str(), ap.get_bssid().has_value() ? bssid_formatted.c_str() : LOG_STR_LITERAL("any"),
-           priority, this->num_retried_ + 1, get_max_retries_for_phase(this->retry_phase_),
+           ap.get_ssid().c_str(), ap.get_bssid().has_value() ? bssid_s : LOG_STR_LITERAL("any"), priority,
+           this->num_retried_ + 1, get_max_retries_for_phase(this->retry_phase_),
            LOG_STR_ARG(retry_phase_to_log_string(this->retry_phase_)));
 
 #ifdef ESPHOME_LOG_HAS_VERBOSE
   ESP_LOGV(TAG, "Connection Params:");
   ESP_LOGV(TAG, "  SSID: '%s'", ap.get_ssid().c_str());
   if (ap.get_bssid().has_value()) {
-    ESP_LOGV(TAG, "  BSSID: %s", format_mac_address_pretty(ap.get_bssid()->data()).c_str());
+    ESP_LOGV(TAG, "  BSSID: %s", bssid_s);
   } else {
     ESP_LOGV(TAG, "  BSSID: Not Set");
   }
@@ -823,6 +823,8 @@ const LogString *get_signal_bars(int8_t rssi) {
 
 void WiFiComponent::print_connect_params_() {
   bssid_t bssid = wifi_bssid();
+  char bssid_s[18];
+  format_mac_addr_upper(bssid.data(), bssid_s);
 
   ESP_LOGCONFIG(TAG, "  Local MAC: %s", get_mac_address_pretty().c_str());
   if (this->is_disabled()) {
@@ -845,9 +847,9 @@ void WiFiComponent::print_connect_params_() {
                                                                            "  Gateway: %s\n"
                                                                            "  DNS1: %s\n"
                                                                            "  DNS2: %s",
-                wifi_ssid().c_str(), format_mac_address_pretty(bssid.data()).c_str(), App.get_name().c_str(), rssi,
-                LOG_STR_ARG(get_signal_bars(rssi)), get_wifi_channel(), wifi_subnet_mask_().str().c_str(),
-                wifi_gateway_ip_().str().c_str(), wifi_dns_ip_(0).str().c_str(), wifi_dns_ip_(1).str().c_str());
+                wifi_ssid().c_str(), bssid_s, App.get_name().c_str(), rssi, LOG_STR_ARG(get_signal_bars(rssi)),
+                get_wifi_channel(), wifi_subnet_mask_().str().c_str(), wifi_gateway_ip_().str().c_str(),
+                wifi_dns_ip_(0).str().c_str(), wifi_dns_ip_(1).str().c_str());
 #ifdef ESPHOME_LOG_HAS_VERBOSE
   if (const WiFiAP *config = this->get_selected_sta_(); config && config->get_bssid().has_value()) {
     ESP_LOGV(TAG, "  Priority: %d", this->get_sta_priority(*config->get_bssid()));
@@ -1452,8 +1454,10 @@ 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);
   }
-  ESP_LOGD(TAG, "Failed " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") ", priority %d → %d", ssid.c_str(),
-           format_mac_address_pretty(failed_bssid.value().data()).c_str(), old_priority, 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", ssid.c_str(), bssid_s,
+           old_priority, new_priority);
 
   // After adjusting priority, check if all priorities are now at minimum
   // If so, clear the vector to save memory and reset for fresh start
@@ -1555,20 +1559,6 @@ void WiFiComponent::retry_connect() {
   }
 }
 
-#ifdef USE_RP2040
-// RP2040's mDNS library (LEAmDNS) relies on LwipIntf::stateUpCB() to restart
-// mDNS when the network interface reconnects. However, this callback is disabled
-// in the arduino-pico framework. As a workaround, we block component setup until
-// WiFi is connected, ensuring mDNS.begin() is called with an active connection.
-
-bool WiFiComponent::can_proceed() {
-  if (!this->has_sta() || this->state_ == WIFI_COMPONENT_STATE_DISABLED || this->ap_setup_) {
-    return true;
-  }
-  return this->is_connected();
-}
-#endif
-
 void WiFiComponent::set_reboot_timeout(uint32_t reboot_timeout) { this->reboot_timeout_ = reboot_timeout; }
 bool WiFiComponent::is_connected() {
   return this->state_ == WIFI_COMPONENT_STATE_STA_CONNECTED &&

esphome/components/wifi/wifi_component.h

@@ -280,10 +280,6 @@ class WiFiComponent : public Component {
 
   void retry_connect();
 
-#ifdef USE_RP2040
-  bool can_proceed() override;
-#endif
-
   void set_reboot_timeout(uint32_t reboot_timeout);
 
   bool is_connected();
@@ -436,7 +432,7 @@ class WiFiComponent : public Component {
   bool wifi_sta_pre_setup_();
   bool wifi_apply_output_power_(float output_power);
   bool wifi_apply_power_save_();
-  bool wifi_sta_ip_config_(optional<ManualIP> manual_ip);
+  bool wifi_sta_ip_config_(const optional<ManualIP> &manual_ip);
   bool wifi_apply_hostname_();
   bool wifi_sta_connect_(const WiFiAP &ap);
   void wifi_pre_setup_();
@@ -444,7 +440,7 @@ class WiFiComponent : public Component {
   bool wifi_scan_start_(bool passive);
 
 #ifdef USE_WIFI_AP
-  bool wifi_ap_ip_config_(optional<ManualIP> manual_ip);
+  bool wifi_ap_ip_config_(const optional<ManualIP> &manual_ip);
   bool wifi_start_ap_(const WiFiAP &ap);
 #endif  // USE_WIFI_AP
 
@@ -533,7 +529,7 @@ class WiFiComponent : public Component {
   bool btm_{false};
   bool rrm_{false};
 #endif
-  bool enable_on_boot_;
+  bool enable_on_boot_{true};
   bool got_ipv4_address_{false};
   bool keep_scan_results_{false};
   bool did_scan_this_cycle_{false};

esphome/components/wifi/wifi_component_esp8266.cpp

@@ -117,7 +117,7 @@ void netif_set_addr(struct netif *netif, const ip4_addr_t *ip, const ip4_addr_t
 };
 #endif
 
-bool WiFiComponent::wifi_sta_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_sta_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable STA
   if (!this->wifi_mode_(true, {}))
     return false;
@@ -525,8 +525,10 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
         ESP_LOGW(TAG, "Disconnected ssid='%s' reason='Probe Request Unsuccessful'", buf);
         s_sta_connect_not_found = true;
       } else {
-        ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf,
-                 format_mac_address_pretty(it.bssid).c_str(), LOG_STR_ARG(get_disconnect_reason_str(it.reason)));
+        char bssid_s[18];
+        format_mac_addr_upper(it.bssid, bssid_s);
+        ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf, bssid_s,
+                 LOG_STR_ARG(get_disconnect_reason_str(it.reason)));
         s_sta_connect_error = true;
       }
       s_sta_connected = false;
@@ -730,7 +732,7 @@ void WiFiComponent::wifi_scan_done_callback_(void *arg, STATUS status) {
 }
 
 #ifdef USE_WIFI_AP
-bool WiFiComponent::wifi_ap_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_ap_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable AP
   if (!this->wifi_mode_({}, true))
     return false;
@@ -870,13 +872,7 @@ bssid_t WiFiComponent::wifi_bssid() {
   return bssid;
 }
 std::string WiFiComponent::wifi_ssid() { return WiFi.SSID().c_str(); }
-int8_t WiFiComponent::wifi_rssi() {
-  if (WiFi.status() != WL_CONNECTED)
-    return WIFI_RSSI_DISCONNECTED;
-  int8_t rssi = WiFi.RSSI();
-  // Values >= 31 are error codes per NONOS SDK API, not valid RSSI readings
-  return rssi >= 31 ? WIFI_RSSI_DISCONNECTED : rssi;
-}
+int8_t WiFiComponent::wifi_rssi() { return WiFi.status() == WL_CONNECTED ? WiFi.RSSI() : WIFI_RSSI_DISCONNECTED; }
 int32_t WiFiComponent::get_wifi_channel() { return WiFi.channel(); }
 network::IPAddress WiFiComponent::wifi_subnet_mask_() { return {(const ip_addr_t *) WiFi.subnetMask()}; }
 network::IPAddress WiFiComponent::wifi_gateway_ip_() { return {(const ip_addr_t *) WiFi.gatewayIP()}; }