use Steam Input for controllers

config/retroarch-common.cfg

@@ -2,8 +2,8 @@ autosave_interval = "2"
 menu_driver = "rgui"
 menu_show_load_content_animation = "false"
 network_cmd_enable = "true"
-input_driver = "udev"
-input_joypad_driver = "udev"
+input_driver = "sdl2"
+input_joypad_driver = "sdl2"
 video_fullscreen = "true"
 video_smooth = "false"
 video_scale_integer = "false"

config/steam-virtual-gamepad.cfg

@@ -0,0 +1,28 @@
+input_driver = "sdl2"
+input_device = "Steam Virtual Gamepad"
+input_vendor_id = "10462"
+input_product_id = "4607"
+input_b_btn = "0"
+input_y_btn = "2"
+input_select_btn = "4"
+input_start_btn = "6"
+input_up_btn = "11"
+input_down_btn = "12"
+input_left_btn = "13"
+input_right_btn = "14"
+input_a_btn = "1"
+input_x_btn = "3"
+input_l_btn = "9"
+input_r_btn = "10"
+input_l2_axis = "+4"
+input_r2_axis = "+5"
+input_l3_btn = "7"
+input_r3_btn = "8"
+input_l_x_plus_axis = "+0"
+input_l_x_minus_axis = "-0"
+input_l_y_plus_axis = "+1"
+input_l_y_minus_axis = "-1"
+input_r_x_plus_axis = "+2"
+input_r_x_minus_axis = "-2"
+input_r_y_plus_axis = "+3"
+input_r_y_minus_axis = "-3"

libexec/launcher

@@ -34,9 +34,14 @@ savestate_directory = ${SAVE_DIR}
 
 
 mkdir -p ${CONFIG_HOME}/retroarch
+AUTOCONFIG=${CONFIG_HOME}/retroarch/autoconfig
+if [ ! -e ${AUTOCONFIG} ] || [ -L ${AUTOCONFIG} ]; then
+	rm -f ${AUTOCONFIG}
+	mkdir -p ${AUTOCONFIG}
+fi
 
-if [ ! -e ${CONFIG_HOME}/retroarch/autoconfig ]; then
-	ln -s /usr/share/libretro/autoconfig ${CONFIG_HOME}/retroarch/autoconfig
+if [ ! -e ${AUTOCONFIG}/steam-virtual-gamepad.cfg ]; then
+	ln -s /usr/share/chimera/config/steam-virtual-gamepad.cfg ${AUTOCONFIG}/
 fi
 
 # use the RetroArch config as is, allowing users to manually configure RetroArch if they want to
@@ -56,6 +61,9 @@ if [ "${RETRO_CORE}" == "dolphin" ]; then
 	cp -f ${CORE_CONFIG} ${CONFIG_HOME}/retroarch/config/remaps/dolphin-emu/dolphin-emu.rmp
 fi
 
+# Ignore all controller devices except for Steam Input
+export SDL_GAMECONTROLLER_IGNORE_DEVICES_EXCEPT="0x28de/0x11ff"
+
 retroarch \
 --appendconfig "${RETRO_CONFIG}|${CORE_CONFIG}" \
 --libretro /usr/lib/libretro/${RETRO_CORE}_libretro.so \