Add 8BitDo Ultimate C Wired controller for UDEV and SDL2 (#918)

* Add support for the 8BitDo Ultimate C Wired controller in X-Input mode.

Both udev and sdl2 config files are provided. The sdl2 config is
particularly useful for the Retroarch Flatpak, which uses the sdl2
driver by default.

I do not have a Windows license, so this is Linux support only.

* Remove input_gun_trigger_mbtn.

* Fix trailing space in 8BitDo Ultimate C Wired device name.

* Add D-Input config for 8BitDo Ulimate C Wired controller.

---------

Co-authored-by: aduffey <aduffey>

sdl2/8BitDo_Ultimate_C_Wired_Controller.cfg

@@ -0,0 +1,77 @@
+# 8BitDo Ultimate C Wired Controller
+# https://www.8bitdo.com/ - https://www.8bitdo.com/ultimate-c-wired-controller/
+# https://support.8bitdo.com/ - https://support.8bitdo.com/firmware-updater.html
+# 
+# This is with the device started in PC (X-Input) mode, by holding the
+# X button while plugging in the controller.
+# 
+# The star button cannot be mapped and functions as a hardware turbo button.
+
+input_driver = "sdl2"
+# The device name has a trailing space
+input_device = "8BitDo Ultimate C Wired Controller "
+input_device_display_name = "8BitDo Ultimate C Wired Controller"
+
+# 2dc8:3106
+input_vendor_id = "11720"
+input_product_id = "12550"
+
+input_up_btn = "11"
+input_down_btn = "12"
+input_left_btn = "13"
+input_right_btn = "14"
+
+input_a_btn = "1"
+input_b_btn = "0"
+input_x_btn = "3"
+input_y_btn = "2"
+
+input_select_btn = "4"
+input_start_btn = "6"
+input_menu_toggle_btn = "5"
+
+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"
+
+input_up_btn_label = "Dpad Up"
+input_down_btn_label = "Dpad Down"
+input_left_btn_label = "Dpad Left"
+input_right_btn_label = "Dpad Right"
+
+input_b_btn_label = "A"
+input_a_btn_label = "B"
+input_y_btn_label = "X"
+input_x_btn_label = "Y"
+
+input_select_btn_label = "View"
+input_start_btn_label = "Menu"
+input_menu_toggle_btn_label = "Home"
+
+input_l_btn_label = "LB"
+input_r_btn_label = "RB"
+input_l2_btn_label = "LT"
+input_r2_btn_label = "RT"
+input_l3_btn_label = "LSB"
+input_r3_btn_label = "RSB"
+
+input_l_x_plus_axis_label = "LS Right"
+input_l_x_minus_axis_label = "LS Left"
+input_l_y_plus_axis_label = "LS Down"
+input_l_y_minus_axis_label = "LS Up"
+input_r_x_plus_axis_label = "RS Right"
+input_r_x_minus_axis_label = "RS Left"
+input_r_y_plus_axis_label = "RS Down"
+input_r_y_minus_axis_label = "RS Up"

udev/8BitDo_Ultimate_C_Wired_Controller.cfg

@@ -0,0 +1,77 @@
+# 8BitDo Ultimate C Wired Controller
+# https://www.8bitdo.com/ - https://www.8bitdo.com/ultimate-c-wired-controller/
+# https://support.8bitdo.com/ - https://support.8bitdo.com/firmware-updater.html
+# 
+# This is with the device started in PC (X-Input) mode, by holding the
+# X button while plugging in the controller.
+# 
+# The star button cannot be mapped and functions as a hardware turbo button.
+
+input_driver = "udev"
+# The device name has a trailing space
+input_device = "8BitDo Ultimate C Wired Controller "
+input_device_display_name = "8BitDo Ultimate C Wired Controller"
+
+# 2dc8:3106
+input_vendor_id = "11720"
+input_product_id = "12550"
+
+input_up_btn = "h0up"
+input_down_btn = "h0down"
+input_left_btn = "h0left"
+input_right_btn = "h0right"
+
+input_a_btn = "1"
+input_b_btn = "0"
+input_x_btn = "3"
+input_y_btn = "2"
+
+input_select_btn = "6"
+input_start_btn = "7"
+input_menu_toggle_btn = "8"
+
+input_l_btn = "4"
+input_r_btn = "5"
+input_l2_axis = "+2"
+input_r2_axis = "+5"
+input_l3_btn = "9"
+input_r3_btn = "10"
+
+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 = "+3"
+input_r_x_minus_axis = "-3"
+input_r_y_plus_axis = "+4"
+input_r_y_minus_axis = "-4"
+
+input_up_btn_label = "Dpad Up"
+input_down_btn_label = "Dpad Down"
+input_left_btn_label = "Dpad Left"
+input_right_btn_label = "Dpad Right"
+
+input_b_btn_label = "A"
+input_a_btn_label = "B"
+input_y_btn_label = "X"
+input_x_btn_label = "Y"
+
+input_select_btn_label = "View"
+input_start_btn_label = "Menu"
+input_menu_toggle_btn_label = "Home"
+
+input_l_btn_label = "LB"
+input_r_btn_label = "RB"
+input_l2_btn_label = "LT"
+input_r2_btn_label = "RT"
+input_l3_btn_label = "LSB"
+input_r3_btn_label = "RSB"
+
+input_l_x_plus_axis_label = "LS Right"
+input_l_x_minus_axis_label = "LS Left"
+input_l_y_plus_axis_label = "LS Down"
+input_l_y_minus_axis_label = "LS Up"
+input_r_x_plus_axis_label = "RS Right"
+input_r_x_minus_axis_label = "RS Left"
+input_r_y_plus_axis_label = "RS Down"
+input_r_y_minus_axis_label = "RS Up"

udev/8BitDo_Ultimate_C_Wired_Controller_DInput.cfg

@@ -0,0 +1,84 @@
+# 8BitDo Ultimate C Wired Controller
+# https://www.8bitdo.com/ - https://www.8bitdo.com/ultimate-c-wired-controller/
+# https://support.8bitdo.com/ - https://support.8bitdo.com/firmware-updater.html
+#
+# This is with the device started in D-Input mode, by holding the B button
+# while plugging in the controller.
+#
+# The star button cannot be mapped and functions as a hardware turbo button.
+#
+# In D-Input mode, the left and right triggers emit two events. One EV_KEY
+# (a binary button press) and one EV_ABS (a continuous analog input). The
+# analog inputs are mapped here and the button inputs are documented in
+# comments below.
+
+input_driver = "udev"
+# The device name has a trailing space
+input_device = "8BitDo Ultimate C Wired Controller "
+input_device_display_name = "8BitDo Ultimate C Wired Controller (D-Input)"
+
+# 2dc8:3017
+input_vendor_id = "11720"
+input_product_id = "12311"
+
+input_up_btn = "h0up"
+input_down_btn = "h0down"
+input_left_btn = "h0left"
+input_right_btn = "h0right"
+
+input_a_btn = "1"
+input_b_btn = "0"
+input_x_btn = "4"
+input_y_btn = "3"
+
+input_select_btn = "10"
+input_start_btn = "11"
+input_menu_toggle_btn = "12"
+
+input_l_btn = "6"
+input_r_btn = "7"
+input_l2_btn = "+10"
+# Non-analog button press: input_l2_btn = "8"
+input_r2_btn = "+9"
+# Non-analog button press: input_r2_btn = "9"
+input_l3_btn = "13"
+input_r3_btn = "14"
+
+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"
+
+input_up_btn_label = "Dpad Up"
+input_down_btn_label = "Dpad Down"
+input_left_btn_label = "Dpad Left"
+input_right_btn_label = "Dpad Right"
+
+input_b_btn_label = "A"
+input_a_btn_label = "B"
+input_y_btn_label = "X"
+input_x_btn_label = "Y"
+
+input_select_btn_label = "View"
+input_start_btn_label = "Menu"
+input_menu_toggle_btn_label = "Home"
+
+input_l_btn_label = "LB"
+input_r_btn_label = "RB"
+input_l2_btn_label = "LT"
+input_r2_btn_label = "RT"
+input_l3_btn_label = "LSB"
+input_r3_btn_label = "RSB"
+
+input_l_x_plus_axis_label = "LS Right"
+input_l_x_minus_axis_label = "LS Left"
+input_l_y_plus_axis_label = "LS Down"
+input_l_y_minus_axis_label = "LS Up"
+input_r_x_plus_axis_label = "RS Right"
+input_r_x_minus_axis_label = "RS Left"
+input_r_y_plus_axis_label = "RS Down"
+input_r_y_minus_axis_label = "RS Up"