Add Esp32 IDF v5.0 support (#2614)

IDF version 5 has a number of breaking changes. See https://docs.espressif.com/projects/esp-idf/en/v5.0/esp32/migration-guides/release-5.x/index.html.

Change summary:

- hw_timer driver has been reworked to replace timer_hal_xxx calls with  timer_ll_xx. IDF 5 replaces the timer HAL with a gptimer driver.
- The ADC interface has changed so new code has been added when compiled with IDF 5. Calibration has not been implemented.
- Minor API changes for uart, Ethernet
- Bluetooth support updated using latest esp-nimble-cpp master branch
- Separate CI workflow added for ESP32
- Add esp32s3 and esp32c2 variants (both untested - hardware not available)
- Update esptool to v4.4, required for esp32c2
- Gdbstub panic handler enabled by default only for debug builds
- The RMT driver interface has changed. This is used by the Adafruit_Neopixel library which has not yet been updated. The previous driver interface has been enabled but is deprecated - a warning is visible in the build logs.

.github/workflows/ci-esp32.yml

@@ -0,0 +1,71 @@
+name: Continuous Integration (CI) for Esp32
+
+on:
+  push:
+
+  pull_request:
+    branches: [ develop ]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, windows-latest]
+        variant: [esp32, esp32s2, esp32c3, esp32s3, esp32c2]
+        idf_version: ["4.3", "4.4", "5.0"]
+        exclude:
+          - variant: esp32s3
+            idf_version: "4.3"
+          - variant: esp32c2
+            idf_version: "4.3"
+          - variant: esp32c2
+            idf_version: "4.4"
+
+    concurrency: 
+      group: ${{ github.workflow }}-${{ github.ref }}-${{ toJson(matrix) }}
+      cancel-in-progress: true
+
+    runs-on: ${{ matrix.os }}
+
+    env:
+      SMING_ARCH: Esp32
+      SMING_SOC: ${{ matrix.variant }}
+      INSTALL_IDF_VER: ${{ matrix.idf_version }}
+
+    steps:
+    - name: Fix autocrlf setting
+      run: |
+        git config --global --add core.autocrlf input
+
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Configure environment
+      shell: pwsh
+      run: |
+        "CI_BUILD_DIR=" + (Resolve-Path ".").path >> $env:GITHUB_ENV
+        "SMING_HOME=" + (Resolve-Path "Sming").path >> $env:GITHUB_ENV
+
+    - name: Install build tools for Ubuntu
+      if: ${{ matrix.os ==  'ubuntu-20.04' }}
+      run: |
+        Tools/ci/install.sh
+
+    - name: Install build tools for Windows   
+      if: ${{ matrix.os == 'windows-latest' }}
+      run: |
+         . Tools/ci/setenv.ps1
+         Tools/ci/install.cmd
+
+    - name: Build and test for ${{matrix.variant}} with IDF v${{matrix.idf_version}} on Ubuntu
+      if: ${{ matrix.os == 'ubuntu-20.04' }}
+      run: |
+        source $SMING_HOME/../Tools/export.sh
+        Tools/ci/build.sh
+
+    - name: Build and test for ${{matrix.variant}} with IDF v${{matrix.idf_version}} on Windows
+      if: ${{ matrix.os == 'windows-latest' }}
+      run: |
+        . Tools/ci/setenv.ps1
+        Tools/ci/build.cmd

.github/workflows/ci.yml

@@ -12,28 +12,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, windows-latest]
-        variant: [esp8266, host, esp32, esp32s2, esp32c3, rp2040]
-        INSTALL_IDF_VER: ["4.3", "4.4"]
+        variant: [esp8266, host, rp2040]
         include:
           - variant: esp8266
             arch: Esp8266
           - variant: host
             arch: Host
-          - variant: esp32
-            arch: Esp32
-          - variant: esp32s2
-            arch: Esp32
-          - variant: esp32c3
-            arch: Esp32
           - variant: rp2040
             arch: Rp2040
-        exclude:
-          - variant: esp8266
-            INSTALL_IDF_VER: "4.4"
-          - variant: host
-            INSTALL_IDF_VER: "4.4"
-          - variant: rp2040
-            INSTALL_IDF_VER: "4.4"
 
     concurrency: 
       group: ${{ github.workflow }}-${{ github.ref }}-${{ toJson(matrix) }}
@@ -58,20 +44,19 @@ jobs:
       run: |
         "CI_BUILD_DIR=" + (Resolve-Path ".").path >> $env:GITHUB_ENV
         "SMING_HOME=" + (Resolve-Path "Sming").path >> $env:GITHUB_ENV
-        "INSTALL_IDF_VER=${{ matrix.INSTALL_IDF_VER }}" >> $env:GITHUB_ENV
 
     - name: Install build tools for Ubuntu
-      if: ${{ matrix.os ==  'ubuntu-20.04' }}
+      if: ${{ matrix.os == 'ubuntu-20.04' }}
       run: |
         Tools/ci/install.sh
 
     - name: Install build tools for Windows   
-      if: ${{ matrix.os ==  'windows-latest' }}
+      if: ${{ matrix.os == 'windows-latest' }}
       run: |
          . Tools/ci/setenv.ps1
          Tools/ci/install.cmd
 
-    - name: Build and test for ${{matrix.arch}} on Ubuntu
+    - name: Build and test for ${{matrix.variant}} on Ubuntu
       env: 
         CLANG_FORMAT: clang-format-8
       if: ${{ matrix.os == 'ubuntu-20.04' }}
@@ -80,7 +65,7 @@ jobs:
         $CLANG_FORMAT --version
         Tools/ci/build.sh
 
-    - name: Build and test for ${{matrix.arch}} on Windows
+    - name: Build and test for ${{matrix.variant}} on Windows
       if: ${{ matrix.os == 'windows-latest' }}
       run: |
         . Tools/ci/setenv.ps1