1 files changed, 196 insertions, 0 deletions
diff --git a/games/devd-controller-rules/files/freebsd-sdl-controller-devd-rules.rb b/games/devd-controller-rules/files/freebsd-sdl-controller-devd-rules.rb
new file mode 100644
index 000000000000..88f7fb5e36a4
--- /dev/null
+++ b/games/devd-controller-rules/files/freebsd-sdl-controller-devd-rules.rb
@@ -0,0 +1,196 @@
+#!/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")