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crackerjacquescrackerjacquesjackheinlein
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board: add Anbernic RG DS (RK3568 dual 4" 640x480 handheld) as CSC (#9934)
* board: add Anbernic RG DS (RK3568 dual 4" handheld) as CSC RK3568 clamshell handheld, dual 4" 640x480 MIPI-DSI. Supported by mainline drivers on edge (7.0) and bleedingedge (7.1): jadard panels, adc-joystick, goodix touch, rk817 audio, rtw88 wifi, usb. The kernel options for these are set in the shared rockchip64 edge/bleedingedge configs (not the board file). Carries the out-of-tree aw87391 speaker-amp driver (plus its DTS wiring on 7.0; 7.1 already has the amp nodes in the mainline DTS) and a goodix dual-gt911 cfg-from-disk fix. Builds mainline U-Boot v2026.01 (vendor 2017.09 does not boot this board). Needs rk3568 DDR v1.23 / BL31 v1.45 from armbian/rkbin (separate PR). Signed-off-by: crackerjacques <jack@supremeoverlordjabs.co> * anbernic-rg-ds: drop redundant board name from header comment BOARD_NAME already carries 'Anbernic RG DS'; keep only the hardware description on the first-line interactive comment (review: @EvilOlaf). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Signed-off-by: crackerjacques <jack@supremeoverlordjabs.co> Co-authored-by: crackerjacques <jack@supremeoverlordjabs.co> Co-authored-by: jackheinlein <crackerjaxx@yandex.com>
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‎config/boards/anbernic-rg-ds.csc‎

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# RK3568 quad-core dual 4" 640x480 MIPI-DSI eMMC/MicroSD WiFi/BT 2xUSB-C
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BOARD_NAME="Anbernic RG DS"
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BOARD_VENDOR="Anbernic"
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BOARDFAMILY="rk35xx"
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BOOT_SOC="rk3568"
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BOARD_MAINTAINER="crackerjacques"
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INTRODUCED="2025"
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KERNEL_TARGET="edge,bleedingedge"
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KERNEL_TEST_TARGET="edge"
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PACKAGE_LIST_BOARD+=" python3-evdev python3-libevdev xinput"
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# Load the USB serial gadget at boot so the ttyGS0 console (OTG port) exists.
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# The shared kernel ships USB_G_SERIAL as a module, so the board loads it here.
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MODULES="g_serial"
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BOOT_FDT_FILE="rockchip/rk3568-anbernic-rg-ds.dtb"
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BOOT_SCENARIO="spl-blobs"
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SERIALCON="ttyS2" # RG DS serial console: ttyS2 @ 1500000
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BOOTFS_TYPE="fat"
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IMAGE_PARTITION_TABLE="gpt"
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# rk3568 DDR v1.23 / BL31 v1.45 (matches the ROCKNIX-proven bootloader on this
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# board). Fetched from armbian/rkbin at build time; no binaries committed here.
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BL31_BLOB="rk35/rk3568_bl31_v1.45.elf"
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DDR_BLOB="rk35/rk3568_ddr_1056MHz_v1.23.bin"
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# Mainline U-Boot (quartz64-a-rk3566 defconfig + rk3568 DDR v1.23 / BL31 v1.45)
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function post_family_config__anbernic_rg_ds_mainline_uboot() {
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display_alert "$BOARD" "mainline U-Boot v2026.01 (quartz64-a-rk3566 + rk3568 DDR v1.23)" "info"
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declare -g BOOTCONFIG="quartz64-a-rk3566_defconfig"
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declare -g BOOTSOURCE="https://github.com/u-boot/u-boot.git"
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declare -g BOOTBRANCH="tag:v2026.01"
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declare -g BOOTDIR="u-boot-${BOARD}"
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declare -g BOOTPATCHDIR="v2026.01"
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declare -g UBOOT_TARGET_MAP="BL31=${RKBIN_DIR}/${BL31_BLOB} ROCKCHIP_TPL=${RKBIN_DIR}/${DDR_BLOB};;u-boot-rockchip.bin"
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unset uboot_custom_postprocess write_uboot_platform write_uboot_platform_mtd
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function write_uboot_platform() {
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dd "if=$1/u-boot-rockchip.bin" "of=$2" bs=32k seek=1 conv=notrunc status=none
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}
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}
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# Board helper payloads (dual-screen layout, gamepad-to-keyboard remap, the
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# desktop toggle/launcher, polkit rule and controls README) ship as real files
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# under config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/ and are baked
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# into the board bsp package. Here we only wire up what needs activation:
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# - ttyGS0 getty: USB-C gadget serial console (no accessible physical UART)
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# - rgds-pad2key.service: gamepad D-pad/buttons -> keyboard (evdev/uinput)
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# The X11 dual-screen helper needs no enabling - it is an xdg autostart entry
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# that self-guards to X11 sessions (see usr/bin/rgds-screen).
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function post_family_tweaks__anbernic_rg_ds_enable_helpers() {
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display_alert "$BOARD" "enabling ttyGS0 console + gamepad-to-keyboard" "info"
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# USB-gadget serial console login on the OTG port
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mkdir -p "${SDCARD}/etc/systemd/system/getty.target.wants"
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ln -sf /lib/systemd/system/serial-getty@.service \
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"${SDCARD}/etc/systemd/system/getty.target.wants/serial-getty@ttyGS0.service"
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# Gamepad-to-keyboard remap (unit file shipped via bsp-cli)
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mkdir -p "${SDCARD}/etc/systemd/system/multi-user.target.wants"
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ln -sf /etc/systemd/system/rgds-pad2key.service \
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"${SDCARD}/etc/systemd/system/multi-user.target.wants/rgds-pad2key.service"
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}

‎config/kernel/linux-rockchip64-bleedingedge.config‎

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CONFIG_KEYBOARD_IQS62X=m
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CONFIG_KEYBOARD_CYPRESS_SF=m
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CONFIG_INPUT_JOYSTICK=y
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CONFIG_JOYSTICK_ADC=m
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CONFIG_JOYSTICK_IFORCE=m
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CONFIG_JOYSTICK_IFORCE_USB=m
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CONFIG_JOYSTICK_XPAD=m
@@ -2015,6 +2016,7 @@ CONFIG_DRM_PANEL_ILITEK_ILI9341=m
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CONFIG_DRM_PANEL_ILITEK_ILI9881C=m
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CONFIG_DRM_PANEL_INNOLUX_EJ030NA=m
20172018
CONFIG_DRM_PANEL_INNOLUX_P079ZCA=m
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CONFIG_DRM_PANEL_JADARD_JD9365DA_H3=m
20182020
CONFIG_DRM_PANEL_JDI_LT070ME05000=m
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CONFIG_DRM_PANEL_JDI_R63452=m
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CONFIG_DRM_PANEL_KHADAS_TS050=m
@@ -2177,6 +2179,7 @@ CONFIG_SND_SOC_AK4642=m
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CONFIG_SND_SOC_AK5386=m
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CONFIG_SND_SOC_AK5558=m
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CONFIG_SND_SOC_ALC5623=m
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CONFIG_SND_SOC_AW87391=m
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CONFIG_SND_SOC_BD28623=m
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CONFIG_SND_SOC_CS35L36=m
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CONFIG_SND_SOC_CS35L41_SPI=m
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CONFIG_SENSORS_RM3100_I2C=m
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CONFIG_SENSORS_RM3100_SPI=m
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CONFIG_YAMAHA_YAS530=m
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CONFIG_IIO_MUX=m
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CONFIG_HID_SENSOR_INCLINOMETER_3D=m
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CONFIG_HID_SENSOR_DEVICE_ROTATION=m
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CONFIG_IIO_HRTIMER_TRIGGER=m

‎config/kernel/linux-rockchip64-edge.config‎

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CONFIG_KEYBOARD_IQS62X=m
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CONFIG_KEYBOARD_CYPRESS_SF=m
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CONFIG_INPUT_JOYSTICK=y
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CONFIG_JOYSTICK_ADC=m
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CONFIG_JOYSTICK_IFORCE=m
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CONFIG_JOYSTICK_IFORCE_USB=m
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CONFIG_JOYSTICK_XPAD=m
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CONFIG_DRM_PANEL_ILITEK_ILI9881C=m
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CONFIG_DRM_PANEL_INNOLUX_EJ030NA=m
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CONFIG_DRM_PANEL_INNOLUX_P079ZCA=m
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CONFIG_DRM_PANEL_JADARD_JD9365DA_H3=m
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CONFIG_DRM_PANEL_JDI_LT070ME05000=m
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CONFIG_DRM_PANEL_JDI_R63452=m
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CONFIG_DRM_PANEL_KHADAS_TS050=m
@@ -2201,6 +2203,7 @@ CONFIG_SND_SOC_AK4642=m
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CONFIG_SND_SOC_AK5386=m
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CONFIG_SND_SOC_AK5558=m
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CONFIG_SND_SOC_ALC5623=m
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CONFIG_SND_SOC_AW87391=m
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CONFIG_SND_SOC_BD28623=m
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CONFIG_SND_SOC_CS35L36=m
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CONFIG_SND_SOC_CS35L41_SPI=m
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CONFIG_SENSORS_RM3100_I2C=m
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CONFIG_SENSORS_RM3100_SPI=m
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CONFIG_YAMAHA_YAS530=m
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CONFIG_IIO_MUX=m
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CONFIG_HID_SENSOR_INCLINOMETER_3D=m
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CONFIG_HID_SENSOR_DEVICE_ROTATION=m
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CONFIG_IIO_HRTIMER_TRIGGER=m

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/etc/polkit-1/rules.d/49-rgds-pad2key.rules‎

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polkit.addRule(function(action, subject) {
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if (action.id == "org.freedesktop.systemd1.manage-units" &&
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action.lookup("unit") == "rgds-pad2key.service" &&
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subject.local && subject.active) {
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return polkit.Result.YES;
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}
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});

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/etc/skel/Desktop/RG-DS-controls.txt‎

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Anbernic RG DS - controls
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=========================
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Gamepad -> keyboard (pad2key) for desktop navigation:
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D-pad arrow keys
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Select Space
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Start Super / Meta
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A (South) Enter
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B (East) Esc
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Y (West) Home
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X (North) Ctrl+F4 (close window)
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HOME (Mode) Alt+Tab (switch window)
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Analog sticks are NOT remapped - they always work as a gamepad.
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Playing games?
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The injected keys (Esc, Ctrl+F4, Alt+Tab...) interfere with games.
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Turn the remap OFF before gaming, ON again for the desktop:
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OFF : systemctl stop rgds-pad2key
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ON : systemctl start rgds-pad2key
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Or use "Toggle Pad-as-Keyboard" in the application menu (no password).

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/etc/systemd/system/rgds-pad2key.service‎

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[Unit]
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Description=RG DS gamepad-to-keyboard remap
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[Service]
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ExecStart=/usr/bin/rgds-pad2key
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Restart=always
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RestartSec=2
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[Install]
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WantedBy=multi-user.target

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/etc/xdg/autostart/rgds-screen.desktop‎

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[Desktop Entry]
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Type=Application
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Name=Anbernic RG DS dual-screen layout
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Comment=Stack the two DSI panels and map each touchscreen (X11 only)
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Exec=/usr/bin/rgds-screen
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NoDisplay=true
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X-GNOME-Autostart-enabled=true

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/usr/bin/rgds-pad2key‎

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#!/usr/bin/env python3
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# RG DS: gamepad/HOME buttons -> keyboard (evdev/uinput, X11/Wayland-safe).
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# Reads every input device that emits a mapped BTN_* code (gpio gamepad keys AND
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# the separate adc HOME key) and injects keyboard keys. Analog sticks untouched.
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import time, select, evdev
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from evdev import ecodes as e, UInput
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MAP = {
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e.BTN_DPAD_UP: e.KEY_UP, e.BTN_DPAD_DOWN: e.KEY_DOWN,
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e.BTN_DPAD_LEFT: e.KEY_LEFT, e.BTN_DPAD_RIGHT: e.KEY_RIGHT,
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e.BTN_SELECT: e.KEY_SPACE,
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e.BTN_START: e.KEY_LEFTMETA,
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e.BTN_SOUTH: e.KEY_ENTER,
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e.BTN_EAST: e.KEY_ESC,
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e.BTN_WEST: e.KEY_HOME,
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}
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# Chords: on a single press, tap the whole combo (modifiers down first, up last).
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COMBO = {
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e.BTN_MODE: (e.KEY_LEFTALT, e.KEY_TAB), # HOME -> Alt+Tab
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e.BTN_NORTH: (e.KEY_LEFTCTRL, e.KEY_F4), # X -> Ctrl+F4
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}
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ALL = set(MAP) | set(COMBO)
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def sources():
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out = {}
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for p in evdev.list_devices():
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try: d = evdev.InputDevice(p)
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except Exception: continue
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if d.name == "rgds-pad2key": continue
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if any(k in d.capabilities().get(e.EV_KEY, []) for k in ALL):
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out[d.fd] = d
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return out
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devs = {}
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while not devs:
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devs = sources()
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if not devs: time.sleep(2)
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_keys = set(MAP.values())
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for _seq in COMBO.values(): _keys.update(_seq)
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ui = UInput({e.EV_KEY: sorted(_keys)}, name="rgds-pad2key")
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while True:
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if not devs: # all inputs vanished: re-scan, don't spin
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devs = sources()
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if not devs:
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time.sleep(2)
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continue
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r, _, _ = select.select(devs, [], [])
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for fd in r:
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try: events = list(devs[fd].read())
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except OSError: # device removed: drop its stale fd
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try: devs[fd].close()
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except Exception: pass
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del devs[fd]
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continue
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for ev in events:
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if ev.type != e.EV_KEY: continue
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if ev.code in COMBO:
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if ev.value == 1: # press: tap the chord once
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seq = COMBO[ev.code]
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for k in seq: ui.write(e.EV_KEY, k, 1)
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for k in reversed(seq): ui.write(e.EV_KEY, k, 0)
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ui.syn()
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elif ev.code in MAP:
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ui.write(e.EV_KEY, MAP[ev.code], ev.value); ui.syn()

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/usr/bin/rgds-pad2key-toggle‎

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#!/bin/bash
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if systemctl is-active --quiet rgds-pad2key; then
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systemctl stop rgds-pad2key && m="Pad-as-keyboard OFF — raw gamepad (for games)"
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else
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systemctl start rgds-pad2key && m="Pad-as-keyboard ON — D-pad = keyboard"
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fi
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command -v notify-send >/dev/null 2>&1 && notify-send -t 1500 -i input-gaming "RG DS" "$m"

‎config/optional/boards/anbernic-rg-ds/_packages/bsp-cli/usr/bin/rgds-screen‎

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#!/bin/bash
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# Anbernic RG DS: DS-style dual-screen layout for X11.
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# Stacks DSI-2 (top, primary) over DSI-1 (bottom) and maps each gt911
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# touchscreen (i2c controllers fe5c0000 / fe5e0000) to its own panel.
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# X11 only: bail out under Wayland / no DISPLAY so xrandr/xinput never error.
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[ "${XDG_SESSION_TYPE:-}" = "x11" ] && [ -n "${DISPLAY:-}" ] || exit 0
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sleep 2
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xrandr --output DSI-1 --pos 0x480
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xrandr --output DSI-2 --primary --pos 0x0
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DISP_A=DSI-2; DISP_B=DSI-1
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ev_for(){ readlink -f /dev/input/by-path/platform-$1.i2c*-event 2>/dev/null; }
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id_for(){ local w="$1" id n; for id in $(xinput list --id-only); do
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n=$(xinput list-props "$id" 2>/dev/null | grep -oP 'Device Node[^"]*"\K[^"]+')
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[ "$n" = "$w" ] && { echo "$id"; return; }; done; }
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A=$(id_for "$(ev_for fe5c0000)"); B=$(id_for "$(ev_for fe5e0000)")
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[ -n "$A" ] && xinput map-to-output "$A" "$DISP_A"
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[ -n "$B" ] && xinput map-to-output "$B" "$DISP_B"

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