Merge pull request #57 from brain-hackers/ci-next

Upgrade submodules etc.

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     outputs:
       upload_url: ${{ steps.create_release.outputs.upload_url }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
           submodules: false
@@ -37,11 +37,207 @@ jobs:
           draft: false
           prerelease: true
 
+  build-linux:
+    runs-on: ubuntu-20.04
+    needs: [create_release]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Workaround for apt update failure
+        run: sudo rm -f /etc/apt/sources.list.d/github_git-lfs.*
+      - name: Install deps
+        run: sudo apt update && sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi qemu-user-static debootstrap python3-pip
+      - name: Upgrade pip and setuptools
+        run: pip3 install -U pip setuptools
+      - name: Install listconfig
+        run: pip3 install listconfig
+      - name: Configure for Linux
+        run: make ldefconfig
+      - name: Build Linux
+        run: make lbuild
+      - name: Setup releases
+        id: release_name
+        run: |
+          mkdir release
+          cp ./linux-brain/arch/arm/boot/dts/imx28-pwsh*.dtb release/
+          cp ./linux-brain/arch/arm/boot/zImage release/zImage
+          zip -r release.zip release/
+      - name: Generate archive name
+        id: archive_name
+        run: echo ::set-output name=name::linux-${GITHUB_REF/refs\/*s\//}
+      - name: Upload release.zip
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
+          asset_path: release.zip
+          asset_name: ${{ steps.archive_name.outputs.name }}.zip
+          asset_content_type: application/zip
+      - name: Generate listconfig
+        run: listconfig ./linux-brain/Kconfig ./linux-brain/.config > listconfig
+      - name: Upload listconfig
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
+          asset_path: listconfig
+          asset_name: listconfig
+          asset_content_type: text/plain
+
+  build-linux-x1:
+    runs-on: ubuntu-20.04
+    needs: [create_release]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Workaround for apt update failure
+        run: sudo rm -f /etc/apt/sources.list.d/github_git-lfs.*
+      - name: Install deps
+        run: sudo apt update && sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabihf libssl-dev lzop qemu-user-static debootstrap
+      - name: Configure for Linux
+        run: make ldefconfig-x1
+      - name: Build Linux
+        run: make lbuild
+      - name: Setup releases
+        id: release_name
+        run: |
+          mkdir release
+          cp ./linux-brain/arch/arm/boot/dts/imx7ulp-pwh*.dtb release/
+          cp ./linux-brain/arch/arm/boot/zImage release/zImage
+          zip -r release.zip release/
+      - name: Generate archive name
+        id: archive_name
+        run: echo ::set-output name=name::linux-x1-${GITHUB_REF/refs\/*s\//}
+      - name: Upload release.zip
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
+          asset_path: release.zip
+          asset_name: ${{ steps.archive_name.outputs.name }}.zip
+          asset_content_type: application/zip
+
+  build-uboot:
+    runs-on: ubuntu-20.04
+    needs: [create_release]
+    strategy:
+      matrix:
+        include:
+          - model: a7200
+            nk: edna3exe.bin
+            lilo: gen2.bin
+          - model: a7400
+            nk: edna3exe.bin
+            lilo: gen2_7400.bin
+          - model: sh1
+            nk: edsa1exe.bin
+            lilo: gen3_1.bin
+          - model: sh2
+            nk: edsa2exe.bin
+            lilo: gen3_2.bin
+          - model: sh3
+            nk: edsa3exe.bin
+            lilo: gen3_3.bin
+          - model: sh4
+            nk: edsh4exe.bin
+            lilo: gen3_4.bin
+          - model: sh5
+            nk: edsh5exe.bin
+            lilo: gen3_5.bin
+          - model: sh6
+            nk: edsh6exe.bin
+            lilo: gen3_6.bin
+          - model: sh7
+            nk: edsh7exe.bin
+            lilo: gen3_7.bin
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Workaround for apt update failure
+        run: sudo rm -f /etc/apt/sources.list.d/github_git-lfs.*
+      - name: Install deps
+        run: sudo apt update && sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi qemu-user-static debootstrap
+      - name: Build nkbin-maker
+        run: make nkbin-maker
+      - name: Configure for U-Boot
+        run: make udefconfig-${{ matrix.model }}
+      - name: Build U-Boot
+        run: make ubuild
+      - name: Generate NK.bin
+        run: make nk.bin
+      - name: Setup releases
+        id: release_name
+        run: |
+          mkdir release
+          cp ./u-boot-brain/u-boot.bin release/u-boot.bin
+          cp ./u-boot-brain/u-boot.bin release/${{ matrix.lilo }}
+          cp ./u-boot-brain/u-boot.sb release/u-boot.sb
+          cp ./nk.bin release/${{ matrix.nk }}
+          zip -r release.zip release/
+      - name: Generate archive name
+        id: archive_name
+        run: echo ::set-output name=name::uboot-${{ matrix.model }}-${GITHUB_REF/refs\/*s\//}
+      - name: Upload release.zip
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
+          asset_path: release.zip
+          asset_name: ${{ steps.archive_name.outputs.name }}.zip
+          asset_content_type: application/zip
+
+  build-uboot-x1:
+    runs-on: ubuntu-20.04
+    needs: [create_release]
+    strategy:
+      matrix:
+        include:
+          - model: h1
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Workaround for apt update failure
+        run: sudo rm -f /etc/apt/sources.list.d/github_git-lfs.*
+      - name: Install deps
+        run: sudo apt update && sudo apt install build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabihf libssl-dev lzop qemu-user-static debootstrap
+      - name: Configure for U-Boot
+        run: make udefconfig-${{ matrix.model }}
+      - name: Build U-Boot
+        run: make ubuild
+      - name: Setup releases
+        id: release_name
+        run: |
+          mkdir release
+          cp ./u-boot-brain/u-boot.bin release/u-boot.bin
+          zip -r release.zip release/
+      - name: Generate archive name
+        id: archive_name
+        run: echo ::set-output name=name::uboot-${{ matrix.model }}-${GITHUB_REF/refs\/*s\//}
+      - name: Upload release.zip
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
+          asset_path: release.zip
+          asset_name: ${{ steps.archive_name.outputs.name }}.zip
+          asset_content_type: application/zip
+
   build-sd:
     runs-on: ubuntu-20.04
     needs: [create_release]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
       - name: Make /opt writable
@@ -52,7 +248,7 @@ jobs:
           unzip -q cegcc.zip
           cp -r cegcc /opt/
       - name: Workaround for apt update failure
-        run: sudo rm /etc/apt/sources.list.d/github_git-lfs.*
+        run: sudo rm -f /etc/apt/sources.list.d/github_git-lfs.*
       - name: Install deps
         run: sudo apt update && sudo apt install kpartx build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabi qemu-user-static debootstrap
       - name: Configure for Linux
@@ -60,7 +256,9 @@ jobs:
       - name: Build Linux
         run: make lbuild
       - name: Build Debian Root
-        run: make minimal
+        run: make brainux
+      - name: Build bsd-ce
+        run: make -C nkbin_maker bsd-ce
       - name: Generate image name
         id: image_name
         run: echo ::set-output name=name::sdimage-${GITHUB_REF/refs\/*s\//}
@@ -77,3 +275,47 @@ jobs:
           asset_path: ${{ steps.image_name.outputs.name }}.zip
           asset_name: ${{ steps.image_name.outputs.name }}.zip
           asset_content_type: application/zip
+
+  build-sd-x1:
+    runs-on: ubuntu-20.04
+    needs: [create_release]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Workaround for apt update failure
+        run: sudo rm -f /etc/apt/sources.list.d/github_git-lfs.*
+      - name: Install deps
+        run: sudo apt update && sudo apt install kpartx build-essential bison flex libncurses5-dev gcc-arm-linux-gnueabihf libssl-dev lzop qemu-user-static debootstrap
+      - name: Upgrade pip and setuptools
+        run: pip3 install -U pip setuptools
+      - name: Install pyelftools
+        run: pip3 install pyelftools
+      - name: Build Boot4u
+        run: make boot4ubuild
+      - name: Configure for U-Boot
+        run: make udefconfig-h1
+      - name: Build U-Boot
+        run: make ubuild
+      - name: Configure for Linux
+        run: make ldefconfig-x1
+      - name: Build Linux
+        run: make lbuild
+      - name: Build Debian Root
+        run: make brainux
+      - name: Generate image name
+        id: image_name
+        run: echo ::set-output name=name::sdimage-x1-${GITHUB_REF/refs\/*s\//}
+      - name: Build SD image
+        run: make image/sd_x1.img && mv image/sd_x1.img ${{ steps.image_name.outputs.name }}.img
+      - name: Compress
+        run: zip ${{ steps.image_name.outputs.name }}.zip ${{ steps.image_name.outputs.name }}.img
+      - name: Upload the image
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
+          asset_path: ${{ steps.image_name.outputs.name }}.zip
+          asset_name: ${{ steps.image_name.outputs.name }}.zip
+          asset_content_type: application/zip

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "brainlilo"]
 	path = brainlilo
 	url = https://github.com/brain-hackers/brainlilo.git
+[submodule "buildroot"]
+	path = buildroot
+	url = https://github.com/brain-hackers/buildroot.git

Makefile

@@ -135,7 +135,6 @@ lilobuild:
 liloclean:
 	make -C ./brainlilo clean
 
-
 brainux:
 	@if [ "$(shell uname)" != "Linux" ]; then \
 		echo "Debootstrap is only available in Linux!"; \
@@ -150,27 +149,26 @@ brainux:
 	fi
 	sudo cp /usr/bin/qemu-arm-static brainux/usr/bin/
 	sudo cp ./os-brainux/setup_brainux.sh brainux/
+	sudo ./os-brainux/override-pre.sh ./os-brainux/override ./brainux
 	sudo -E chroot brainux /setup_brainux.sh
 	sudo rm brainux/setup_brainux.sh
 	sudo ./os-brainux/override.sh ./os-brainux/override ./brainux
 
-minimal:
-	@if [ "$(shell uname)" != "Linux" ]; then \
-		echo "Debootstrap is only available in Linux!"; \
-		exit 1; \
-	fi
-	sudo mkdir -p brainux
-	sudo debootstrap --arch=$(ROOTFS_CROSS) --foreign bullseye brainux/; \
-	sudo cp /usr/bin/qemu-arm-static brainux/usr/bin/
-	sudo cp ./os-minimal/setup_brainux.sh brainux/
-	sudo -E chroot brainux /setup_brainux.sh
-	sudo rm brainux/setup_brainux.sh
+buildroot_rootfs:
+	make -C buildroot brain_imx28_defconfig
+	make -C buildroot -j 12
+	sudo mkdir -p buildroot_rootfs
+	sudo tar -C ./buildroot_rootfs -xf buildroot/output/images/rootfs.tar
 
 image/sd.img: clean_work
-	./image/build_image.sh
+	./image/build_image.sh brainux sd.img 3072
 
 image/sd_x1.img: clean_work
-	./image/build_image_x1.sh
+	./image/build_image_x1.sh brainux sd_x1.img 3072
+
+image/sd_buildroot.img: clean_work
+	./image/build_image.sh buildroot_rootfs sd_buildroot.img 128
+
 
 .PHONY:
 clean_work:

README.md

@@ -94,8 +94,8 @@ Build Linux
 1. Confirm that `linux-brain/arch/arm/boot/zImage` exists.
 
 
-Bootstrap Debian 11 (bullseye)
-------------------------------
+Build a Debian rootfs
+---------------------
 
 1. Run `make ldefconfig lbuild`.
 
@@ -107,9 +107,23 @@ Bootstrap Debian 11 (bullseye)
 
 1. Confirm that `image/sd.img` is built and burn it to an SD card.
 
+
+Build a Buildroot rootfs
+------------------------
+
+Buildroot rootfs aims to be the most lightweight rootfs for experimental use. `make buildroot_rootfs` runs the defconfig target for rootfs-only build and then builds the rootfs tarball and a CPIO archive for initramfs. `make image/sd_buildroot.img` makes a bootable SD image in `image` directory like the typical Brainux SD image.
+
+If you want to customize the build of Buildroot, `cd` into `buildroot` and use the following targets:
+
+ - `make menuconfig` to change the configuration
+ - `make` to build the rootfs (`-j` option might give you extra speed)
+
+`image/sd_buildroot.img` target expects presence of the tarball at `buildroot/output/images/rootfs.tar`. You'll have to `clean` and rebuild every time you change the Buildroot's config before making the SD image.
+
+
 Known issues
 ----------------------------------------
-If you using gcc 10 for host compiler, `make ubuild` may fail.  
+If you use GCC 10 for the host compiler, `make ubuild` may fail.
 To complete build, open `/u-boot-brain/scripts/dtc/dtc-lexer.lex.c` or `/u-boot-brain/scripts/dtc/dtc-parser.tab.c` then comment out `YYLTYPE yylloc;`
 
 Watch changes in submodules & auto-build

brainlilo

@@ -1 +1 @@
-Subproject commit 0ef73cdeb41b6d56538fa0739210f935eb9f2768
+Subproject commit 2ec8f7827e40ec8dfe6b7f5b0200e1effaf1b855

buildroot

@@ -0,0 +1 @@
+Subproject commit cf3ea901082f470449bd174272d8407e039522b2

image/build_image.sh

@@ -5,24 +5,33 @@ JOBS=$(nproc)
 REPO=$(git rev-parse --show-toplevel)
 WORK=${REPO}/image/work
 LINUX=${REPO}/linux-brain
-IMG=${REPO}/image/sd.img
+ROOTFS=$1
+IMG_NAME=$2
+IMG=${REPO}/image/${IMG_NAME}
+SIZE_M=$3
 export CROSS_COMPILE=arm-linux-gnueabi-
 
 mkdir -p ${WORK}
 mkdir -p ${WORK}/lilobin
 
-for i in "a7200" "sh1" "sh2" "sh3" "sh4" "sh5" "sh6" "sh7"; do
+for i in "a7200" "a7400" "sh1" "sh2" "sh3" "sh4" "sh5" "sh6" "sh7"; do
     NUM=$(echo $i | sed -E 's/sh//g')
 
     make -C ${REPO}/u-boot-brain distclean pw${i}_defconfig
     make -j${JOBS} -C ${REPO}/u-boot-brain u-boot.bin
+    ${REPO}/nkbin_maker/bsd-ce ${REPO}/u-boot-brain/u-boot.bin
 
     case $i in
         "a7200")
+            mv ${REPO}/nk.bin ${WORK}/edna3exe.bin
             mv ${REPO}/u-boot-brain/u-boot.bin ${WORK}/lilobin/gen2.bin;;
+        "a7400")
+            mv ${REPO}/u-boot-brain/u-boot.bin ${WORK}/lilobin/gen2_7400.bin;;
         "sh1" | "sh2" | "sh3")
+            mv ${REPO}/nk.bin ${WORK}/edsa${NUM}exe.bin
             mv ${REPO}/u-boot-brain/u-boot.bin ${WORK}/lilobin/gen3_${NUM}.bin;;
         "sh4" | "sh5" | "sh6" | "sh7")
+            mv ${REPO}/nk.bin ${WORK}/edsh${NUM}exe.bin
             mv ${REPO}/u-boot-brain/u-boot.bin ${WORK}/lilobin/gen3_${NUM}.bin;;
         *)
             echo "WTF: $i"
@@ -30,7 +39,7 @@ for i in "a7200" "sh1" "sh2" "sh3" "sh4" "sh5" "sh6" "sh7"; do
     esac
 done
 
-dd if=/dev/zero of=${IMG} bs=1M count=3072
+dd if=/dev/zero of=${IMG} bs=1M count=${SIZE_M}
 
 START1=2048
 SECTORS1=$((1024 * 1024 * 64 / 512))
@@ -45,7 +54,7 @@ sfdisk ${IMG} < ${WORK}/part.sfdisk
 
 sudo kpartx -av ${IMG}
 
-LOOPDEV=$(losetup -l | grep sd.img | grep -o 'loop.' | tail -n 1)
+LOOPDEV=$(losetup -l | grep ${IMG_NAME} | grep -o 'loop.' | tail -n 1)
 
 sudo mkfs.fat -n boot -F32 -v -I /dev/mapper/${LOOPDEV}p1
 sudo mkfs.ext4 -L rootfs /dev/mapper/${LOOPDEV}p2
@@ -56,6 +65,8 @@ sudo mount /dev/mapper/${LOOPDEV}p2 ${WORK}/p2
 
 sudo cp ${LINUX}/arch/arm/boot/zImage ${WORK}/p1/
 sudo cp ${LINUX}/arch/arm/boot/dts/imx28-pw*.dtb ${WORK}/p1/
+sudo mkdir -p ${WORK}/p1/nk
+sudo cp ${WORK}/*.bin ${WORK}/p1/nk/
 
 make -C ${REPO}/brainlilo
 
@@ -65,13 +76,13 @@ sudo touch "${LILO}/index.din"
 sudo touch "${LILO}/AppMain.cfg"
 sudo cp ${REPO}/brainlilo/*.dll "${LILO}/"
 sudo cp ${REPO}/brainlilo/BrainLILO.exe "${LILO}/AppMain_.exe"
-gzip -d ${REPO}/image/exeopener.exe.gz
+gzip -cd ${REPO}/image/exeopener.exe.gz > ${REPO}/image/exeopener.exe
 sudo cp ${REPO}/image/exeopener.exe "${LILO}/AppMain.exe"
 
 sudo mkdir -p ${WORK}/p1/loader
 sudo cp ${WORK}/lilobin/*.bin ${WORK}/p1/loader/
 
-sudo cp -ra ${REPO}/brainux/* ${WORK}/p2/
+sudo cp -ra ${REPO}/${ROOTFS}/* ${WORK}/p2/
 
 sudo umount ${WORK}/p1 ${WORK}/p2
 sudo kpartx -d ${IMG}

linux-brain

@@ -1 +1 @@
-Subproject commit 60e1cb92ee16b5ecf61baccdc19c4821d6b15aee
+Subproject commit afbb7e017623f0963270cbad512f1d83b83a3d5b

os-brainux/override-pre.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -uex -o pipefail
+
+SRC=$1
+DST=$2
+
+install -g root -o root -m 0644 $SRC/lib/systemd/system/boot.mount $DST/lib/systemd/system/boot.mount
+install -g root -o root -m 0644 $SRC/lib/systemd/system/rndis_gadget.service $DST/lib/systemd/system/rndis_gadget.service
+install -g root -o root -m 0755 $SRC/usr/bin/enable_rndis_gadget $DST/usr/bin/enable_rndis_gadget

os-brainux/override/lib/systemd/system/boot.mount

@@ -0,0 +1,10 @@
+[Unit]
+Description=Mount boot partition
+
+[Mount]
+What=/dev/mmcblk1p1
+Where=/boot
+Options=ro
+
+[Install]
+WantedBy=multi-user.target

os-brainux/override/lib/systemd/system/rndis_gadget.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Enable RNDIS USB Gadget
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/enable_rndis_gadget
+
+[Install]
+WantedBy=multi-user.target

os-brainux/override/usr/bin/enable_rndis_gadget

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+g=/sys/kernel/config/usb_gadget/eth
+
+mkdir ${g}
+
+echo "0x3066" > ${g}/bcdDevice
+echo "1" > ${g}/os_desc/use
+echo "0xcd" > ${g}/os_desc/b_vendor_code
+echo "MSFT100" > ${g}/os_desc/qw_sign
+
+mkdir ${g}/functions/rndis.rn0
+echo "RNDIS" > ${g}/functions/rndis.rn0/os_desc/interface.rndis/compatible_id
+echo "5162001" > ${g}/functions/rndis.rn0/os_desc/interface.rndis/sub_compatible_id
+echo "8a:15:8b:44:3a:02" > ${g}/functions/rndis.rn0/dev_addr
+echo "8a:15:8b:44:3a:01" > ${g}/functions/rndis.rn0/host_addr
+
+mkdir ${g}/configs/c.1
+ln -s ${g}/functions/rndis.rn0 ${g}/configs/c.1/
+
+echo "ci_hdrc.0" > ${g}/UDC
+
+sleep 1
+ifconfig usb0 up
+dhclient

os-brainux/setup_brainux.sh

@@ -80,9 +80,8 @@ apt update -y
 DEBIAN_FRONTEND=noninteractive \
     apt install -y dialog sudo \
                    libjpeg-dev libfreetype6 libfreetype6-dev zlib1g-dev \
-                   xserver-xorg xserver-xorg-video-fbdev xserver-xorg-dev xserver-xorg-input-evdev xinput-calibrator xorg-dev x11-apps xinit \
+                   xserver-xorg xserver-xorg-video-fbdev xserver-xorg-dev xserver-xorg-input-evdev xinput-calibrator xorg-dev x11-apps x11-ico-dvd xinit \
                    jwm \
-                   weston xwayland \
                    bash tmux vim htop \
                    midori pcmanfm lxterminal xterm gnome-terminal fbterm uim-fep uim-anthy fonts-noto-cjk \
                    dbus udev alsa-utils usbutils iw fake-hwclock systemd-timesyncd\
@@ -136,6 +135,12 @@ ttymxc0
 ttyLP0
 EOF
 
+# Enable /boot mount
+systemctl enable boot.mount
+
+# Enable RNDIS gadget
+systemctl enable rndis_gadget
+
 # Get wild
 cat <<EOF > /etc/apt/sources.list
 deb http://deb.debian.org/debian bullseye main contrib non-free

os-buildroot/override/root/blink.sh

@@ -0,0 +1,112 @@
+#!/bin/sh
+set -u
+
+VERBOSE=0
+PIN=""
+SLEEP=1
+GPIOS=""
+
+while getopts "hvr:p:s:" OPT; do
+    case "$OPT" in
+    h)
+        echo "Usage:   blink.sh [-hv] [-r PIN_RANGE_FROM-PIN_RANGE_TO] [-p PIN] [-s SLEEP_SEC]"
+        echo "Example: blink.sh -r 0-10 -p 12"
+        echo "         (blink from GPIO 0 to 10 and 12)"
+        exit 0
+        ;;
+    v)
+        VERBOSE=1
+        ;;
+    r)
+        RE='^([0-9]+)-([0-9]+)$'
+        if echo $OPTARG | grep -qvE $RE; then
+            echo "Error: invalid range: $OPTARG"
+            exit 1
+        fi
+        FROM=$(echo $OPTARG | sed -E "s/$RE/\\1/")
+        TO=$(echo $OPTARG | sed -E "s/$RE/\\2/")
+        GPIOS="$GPIOS$(seq -s " " $FROM $TO) "
+        ;;
+    p)
+        if echo $OPTARG | grep -qvE "^[0-9]+$"; then
+            echo "Error: invalid pin number: $OPTARG"
+            exit 1
+        fi
+        GPIOS="$GPIOS$OPTARG "
+        ;;
+    s)
+        if echo $OPTARG | grep -qvE "^[0-9]+$"; then
+            echo "Error: invalid sleep duration: $OPTARG"
+            exit 1
+        fi
+        SLEEP=$OPTARG
+        ;;
+    esac
+done
+
+if [ $VERBOSE -eq 1 ]; then
+    echo "Pins to iterate over: $GPIOS"
+fi
+
+if [ "$(id -u)" -ne "0" ]; then
+    echo "Error: please run as root"
+    exit 1
+fi
+
+AVAILABLE_GPIOS=""
+
+export_gpio() {
+    echo $1 > /sys/class/gpio/export
+}
+
+set_direction() {
+    echo out > /sys/class/gpio/gpio$1/direction
+}
+
+set_value() {
+    echo $2 > /sys/class/gpio/gpio$1/value
+}
+
+for i in $GPIOS; do
+    if [ ! -e "/sys/class/gpio/gpio$i" ]; then
+        export_gpio $i 2>/dev/null
+        if [ $? -ne 0 ]; then
+            echo "Error: failed to export the pin $i"
+            continue
+        fi
+    fi
+
+    set_direction $i 2>/dev/null
+    if [ $? -ne 0 ]; then
+        # Ignore the failure if the actual direction is out
+        if grep -vq "out" /dsys/class/gpio/gpio$i/direction; then
+            echo "Error: failed to set the direction of the pin $i to out"
+            continue
+        fi
+    fi
+
+    AVAILABLE_GPIOS="$AVAILABLE_GPIOS$i "
+done
+
+echo "Available GPIOs: $AVAILABLE_GPIOS"
+
+while [ 1 ]; do
+    for i in $AVAILABLE_GPIOS; do
+        set_value $i 1 2>/dev/null
+        if [ $? -ne 0 ]; then
+            echo "Warning: failed to set the value of the pin $i to high"
+        fi
+    done
+
+    sleep $SLEEP
+
+    for i in $AVAILABLE_GPIOS; do
+        set_value $i 0 2>/dev/null
+        if [ $? -ne 0 ]; then
+            echo "Warning: failed to set the value of the pin $i to low"
+        fi
+    done
+
+    sleep $SLEEP
+done
+

os-minimal/setup_brainux.sh

@@ -1,52 +0,0 @@
-#!/bin/bash
-set -uex -o pipefail
-
-/debootstrap/debootstrap --second-stage
-
-# cat <<EOF > /etc/apt/sources.list
-# deb http://deb.debian.org/debian bullseye main contrib non-free
-# deb-src http://deb.debian.org/debian bullseye main contrib non-free
-# deb http://deb.debian.org/debian bullseye-updates main contrib non-free
-# deb-src http://deb.debian.org/debian bullseye-updates main contrib non-free
-# deb http://deb.debian.org/debian-security bullseye-security/updates main contrib non-free
-# deb-src http://deb.debian.org/debian-security bullseye-security/updates main contrib non-free
-# EOF
-
-# cat <<EOF > /etc/apt/apt.conf.d/90-norecommend
-# APT::Install-Recommends "0";
-# APT::Install-Suggests "0";
-# EOF
-
-# locales: locale has to be set before going any further
-apt update -y
-DEBIAN_FRONTEND=noninteractive \
-    apt install -y locales bash
-
-echo "Asia/Tokyo" > /etc/timezone
-rm /etc/localtime
-dpkg-reconfigure -f noninteractive tzdata
-sed -i -e 's/# en_US.UTF-8/en_US.UTF-8/' /etc/locale.gen
-echo 'LANG="en_US.UTF-8"' > /etc/default/locale
-dpkg-reconfigure -f noninteractive locales
-update-locale LANG=en_US.UTF-8
-
-LANG=en_US.UTF-8
-
-echo "brain" > /etc/hostname
-
-# apt install -y sudo
-
-# Network
-# apt install -y ca-certificates fake-hwclock systemd-timesyncd net-tools ssh avahi-daemon network-manager
-# systemctl enable fake-hwclock
-
-# Setup users
-# adduser --gecos "" --disabled-password --home /home/user user
-# echo user:brain | chpasswd
-# echo "user ALL=(ALL:ALL) ALL" > /etc/sudoers.d/user
-
-apt install -y ssh jwm xserver-xorg xserver-xorg-video-fbdev xserver-xorg-input-evdev xinput-calibrator x11-apps xinit xterm fonts-vlgothic
-
-echo -e "127.0.1.1\tbrain" >> /etc/hosts
-
-echo root:root | chpasswd

u-boot-brain

@@ -1 +1 @@
-Subproject commit 783749833dcc9fd1cd318af7750c2b17be182852
+Subproject commit e8fc0d0cf39d9cd06245ef1777d1cf54258e5cb6