Add zram support and update build workflow for OpenWrt

.github/workflows/build-all.yml

@@ -0,0 +1,101 @@
+name: OpenWrt Builder (All Devices)
+
+on:
+  repository_dispatch:
+  workflow_dispatch:
+
+env:
+  UPLOAD_FIRMWARE: true
+  TZ: Europe/Madrid
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+
+    strategy:
+      fail-fast: false
+      matrix:
+        device: [uz801, m9s, mf68e, uf02]
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Initialization environment
+      env:
+        DEBIAN_FRONTEND: noninteractive
+      run: |
+        sudo rm -rf /etc/apt/sources.list.d/* /usr/share/dotnet /usr/local/lib/android /opt/ghc /opt/hostedtoolcache/CodeQL
+        sudo docker image prune --all --force
+        sudo -E apt-get -qq update
+        sudo -E ./devenv/dependencies.sh
+        sudo -E apt-get -qq autoremove --purge
+        sudo -E apt-get -qq clean
+        sudo timedatectl set-timezone "$TZ"
+
+    - name: Clone OpenWrt source code
+      run: |
+        df -hT $PWD
+        git clone https://git.openwrt.org/openwrt/openwrt.git openwrt
+        git -C openwrt checkout 00ceb1ed1763f7479df6edf92ffada948f0e7d45
+
+    - name: Load msm89xx target and packages
+      run: |
+        git apply --unsafe-paths enable_wcn36xx_mac80211.patch
+        mv msm89xx openwrt/target/linux/msm89xx
+        mv packages openwrt/package/uz801
+
+    - name: Update and install feeds
+      run: |
+        cd openwrt
+        rm -rf tmp
+        ./scripts/feeds update -a
+        ./scripts/feeds install -a
+
+    - name: Load diffconfig
+      run: |
+        DEVICE="${{ matrix.device }}"
+        DIFFCONFIG=$([ "$DEVICE" = "uz801" ] && echo "diffconfig" || echo "diffconfig_${DEVICE}")
+        [ -f "$DIFFCONFIG" ] && mv "$DIFFCONFIG" openwrt/.config
+
+    - name: Download package
+      id: package
+      run: |
+        cd openwrt
+        make defconfig
+        make download -j8
+        find dl -size -1024c -exec ls -l {} \; || true
+        find dl -size -1024c -exec rm -f {} \; || true
+
+    - name: Compile the firmware
+      id: compile
+      run: |
+        cd openwrt
+        echo -e "$(nproc) thread compile"
+        make -j$(nproc) || make -j1 || make -j1 V=s
+        echo "status=success" >> $GITHUB_OUTPUT
+        grep '^CONFIG_TARGET.*DEVICE.*=y' .config | sed -r 's/.*DEVICE_(.*)=y/\1/' > DEVICE_NAME
+        [ -s DEVICE_NAME ] && echo "DEVICE_NAME=$(cat DEVICE_NAME)" >> $GITHUB_ENV
+        echo "FILE_DATE=$(date +"%Y%m%d%H%M")" >> $GITHUB_ENV
+
+    - name: Organize files
+      id: organize
+      if: env.UPLOAD_FIRMWARE == 'true' && !cancelled()
+      run: |
+        cd openwrt/bin/targets/*/*
+        rm -rf packages
+        echo "FIRMWARE=$PWD" >> $GITHUB_ENV
+        echo "status=success" >> $GITHUB_OUTPUT
+
+    - name: Upload firmware
+      uses: actions/upload-artifact@v4
+      if: steps.organize.outputs.status == 'success' && !cancelled()
+      with:
+        name: openwrt_firmware_${{ env.DEVICE_NAME }}_${{ env.FILE_DATE }}
+        path: |
+          ${{ env.FIRMWARE }}/openwrt-msm89xx-msm8916-${{ env.DEVICE_NAME }}-squashfs-gpt_both0.bin
+          ${{ env.FIRMWARE }}/openwrt-msm89xx-msm8916-${{ env.DEVICE_NAME }}-squashfs-boot.img
+          ${{ env.FIRMWARE }}/openwrt-msm89xx-msm8916-${{ env.DEVICE_NAME }}-squashfs-system.img
+          ${{ env.FIRMWARE }}/openwrt-msm89xx-msm8916-${{ env.DEVICE_NAME }}.manifest
+          ${{ env.FIRMWARE }}/openwrt-msm89xx-msm8916-${{ env.DEVICE_NAME }}-flash.sh
+          ${{ env.FIRMWARE }}/openwrt-msm89xx-msm8916-${{ env.DEVICE_NAME }}-firmware.zip

readme.md

@@ -215,7 +215,7 @@ The modem requires region-specific MCFG configuration files.
   - Note: Target-specific modules may require building from source via `make menuconfig`
   - Removed feed: `https://downloads.openwrt.org/snapshots/targets/msm89xx/msm8916/packages/packages.adb`
 - [ ] Investigate `lpac` for eSIM support
-- [ ] Memory expansion: swap/zram configuration
+- [x] Memory expansion: `kmod-zram` + `zram-swap` enabled on all devices
 
 ## Credits