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| #!/usr/bin/env ruby | |
| # encoding: UTF-8 | |
| # MIT License | |
| # | |
| # Copyright (c) 2025 shkhln | |
| # | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy | |
| # of this software and associated documentation files (the "Software"), to deal | |
| # in the Software without restriction, including without limitation the rights | |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| # copies of the Software, and to permit persons to whom the Software is | |
| # furnished to do so, subject to the following conditions: | |
| # | |
| # The above copyright notice and this permission notice shall be included in all | |
| # copies or substantial portions of the Software. | |
| # | |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| # SOFTWARE. | |
| MIN_EXPECTED_ENTRIES = 555 | |
| PRINT_NOTES = true | |
| VID_NOPELIST = [ | |
| 0, | |
| 1, | |
| 0x0e00, # no idea who's that | |
| 0x0fff, # Aopen, Inc.; no known gamepads | |
| 0x11ff, # no idea who's that | |
| 0x162e, # ditto | |
| 0x16d0, # MCS, whatever that means | |
| 0x1a34, # ACRUX, ungoogleable | |
| 0x20ab, # no idea who's that | |
| 0x25b1, # ditto | |
| 0x2f24, # ditto | |
| 0x7545, # ditto | |
| 0x8380, # ditto | |
| 0x8888, # ditto | |
| 0xd2d2 # ditto | |
| ] | |
| if !File.exist?('usb_ids.h') | |
| system('fetch https://raw.githubusercontent.com/libsdl-org/SDL/refs/heads/main/src/joystick/usb_ids.h') | |
| end | |
| if !File.exist?('controller_list.h') | |
| system('fetch https://raw.githubusercontent.com/libsdl-org/SDL/refs/heads/main/src/joystick/controller_list.h') | |
| end | |
| controllers = [] | |
| controller_list_header = File.read('controller_list.h') | |
| controller_list_header.scan(/MAKE_CONTROLLER_ID\(\s*0x([0-9a-f]+),\s*0x([0-9a-f]+)\s*\).*?(?:\/\/(.*)|)$/) do | |
| controllers << {vid: $1.to_i(16), pid: $2.to_i(16), note: ($3 ? $3.strip : nil)} | |
| end | |
| vids_by_name = {} | |
| pids_by_name = {} | |
| usb_ids_header = File.read('usb_ids.h') | |
| usb_ids_header.scan(/#define USB_VENDOR_([0-9A-Z_]+)\s+0x([0-9a-f]+)/) do | |
| vids_by_name[$1] = $2.to_i(16) | |
| end | |
| usb_ids_header.scan(/#define USB_PRODUCT_([0-9A-Z_]+)\s+0x([0-9a-f]+)/) do | |
| pids_by_name[$1] = $2.to_i(16) | |
| end | |
| vids_by_name['BDA'] = vids_by_name['POWERA'] | |
| vids_by_name['EVORETRO'] = vids_by_name['DRAGONRISE'] | |
| vids_by_name['VICTRIX'] = vids_by_name['PDP'] | |
| vids_by_name['XBOX'] = vids_by_name['MICROSOFT'] | |
| for vendor in vids_by_name.keys | |
| pids_by_name.keys.find_all{|product| product.start_with?(vendor)}.each do |product| | |
| controllers << {vid: vids_by_name[vendor], pid: pids_by_name[product], note: product.delete_prefix(vendor).delete_prefix('_')} | |
| pids_by_name.delete(product) | |
| end | |
| end | |
| if !pids_by_name.empty? | |
| STDERR.puts "#{pids_by_name.size} product ids from usb_ids.h were not assigned to a vendor:" | |
| STDERR.puts "#{pids_by_name.keys.join(', ')}" | |
| STDERR.puts | |
| end | |
| # let's get rid of duplicates after merging entries from controller_list.h with usb_ids.h | |
| controllers.uniq!{|controller| [controller[:vid], controller[:pid]]} | |
| # garbage in, garbage out | |
| controllers.delete_if{|controller| VID_NOPELIST.include?(controller[:vid])} | |
| raise "Found #{controllers.size} controllers, expected at least #{MIN_EXPECTED_ENTRIES}" if controllers.size < MIN_EXPECTED_ENTRIES | |
| def ids_to_regex(ids, width = 4) | |
| raise if !(ids.any?{|id| id.is_a?(String) && id.size == width && id =~ /[0-9a-f]+/}) | |
| if width > 1 | |
| alternatives = ids.group_by{|id| id[0]}.map{|first_digit, ids| first_digit + ids_to_regex(ids.map{|id| id[1..-1]}, width - 1)} | |
| if alternatives.size == 1 | |
| alternatives[0] | |
| else | |
| "(#{alternatives.join('|')})" | |
| end | |
| else | |
| if ids.size == 1 | |
| ids[0] | |
| else | |
| "[#{regex_char_class(ids)}]" | |
| end | |
| end | |
| end | |
| def regex_char_class(letters) | |
| out = '' | |
| range_start = nil | |
| letters = letters.sort.uniq | |
| letters.each_cons(2) do |a, b| | |
| if a.ord + 1 == b.ord | |
| range_start = a if !range_start | |
| else | |
| if range_start | |
| if a.ord - range_start.ord > 2 | |
| out += "#{range_start}-#{a}" | |
| else | |
| out += (range_start..a).to_a.join | |
| end | |
| range_start = nil | |
| else | |
| out += a | |
| end | |
| end | |
| end | |
| if range_start | |
| if letters[-1].ord - range_start.ord > 2 | |
| out += "#{range_start}-#{letters[-1]}" | |
| else | |
| out += (range_start..letters[-1]).to_a.join | |
| end | |
| else | |
| out += letters[-1] | |
| end | |
| out | |
| end | |
| vendors_by_id = vids_by_name.invert.merge({ | |
| 0x03eb => 'Atmel Corp.', | |
| 0x05b8 => 'SYSGRATION', # doesn't look like a gamepad vendor | |
| 0x056e => 'Elecom Co., Ltd', | |
| 0x0810 => 'Personal Communication Systems, Inc.', | |
| 0x0925 => 'Lakeview Research', | |
| 0x0d62 => 'Darfon Electronics Corp.', # ? | |
| 0x0e8f => 'GreenAsia Inc.', | |
| 0x0f30 => 'Jess Technology Co., Ltd', | |
| 0x1038 => 'SteelSeries ApS', | |
| 0x11c0 => 'Betop', # ? | |
| 0x11c9 => 'Nacon', | |
| 0x12ab => 'Honey Bee Electronic International Ltd.', | |
| 0x1345 => 'Sino Lite Technology Corp', | |
| 0x1430 => 'RedOctane', | |
| 0x15e4 => 'Numark', # doesn't look like a gamepad vendor | |
| 0x1689 => 'Razer USA, Ltd', | |
| 0x1bad => 'Harmonix Music Systems, Inc.', | |
| 0x2516 => 'Cooler Master Co., Ltd.', # what might that be? | |
| 0x25f0 => 'ShanWan' # who? | |
| }) | |
| puts '# This config file, including most comments below this one,' | |
| puts '# was generated by https://gist.github.com/shkhln/b39c2f3d609e57d47b7026da2a925aef' | |
| puts '# from SDL\'s source code available at https://github.com/libsdl-org/SDL' | |
| puts '# under the terms of Zlib license.' | |
| puts | |
| puts controllers | |
| .sort_by {|controller| [controller[:vid], controller[:pid]]} | |
| .group_by{|controller| controller[:vid]} | |
| .map {|vid, group| | |
| [ | |
| ("# #{vendors_by_id[vid] || '???'}" if PRINT_NOTES), | |
| (group.map{|controller| '# %#06x %s' % [controller[:pid], controller[:note]]}.join("\n") if PRINT_NOTES), | |
| <<~RULE | |
| notify 100 { | |
| match "system" "USB"; | |
| match "subsystem" "INTERFACE"; | |
| match "type" "ATTACH"; | |
| match "vendor" "#{'%#06x' % vid}"; | |
| match "product" "0x#{ids_to_regex(group.map{|controller| '%04x' % controller[:pid]})}"; | |
| action "chgrp games /dev/$cdev && chmod g+rw /dev/$cdev"; | |
| }; | |
| RULE | |
| ].compact.join("\n") | |
| } | |
| .join("\n") |
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