├── .gitignore ├── 00install.bash ├── 1-run-backend ├── 2-run-frontend ├── LICENSE ├── README.md ├── experimental ├── go.mod ├── go.sum ├── gtktest │ └── gtktest.go └── jspython │ └── jspython.py ├── nscontroller ├── autofire.go ├── backend_proxy.go ├── cmd │ ├── nsbackend │ │ ├── fifo.go │ │ ├── nsbackend.go │ │ └── subcommands.go │ └── nsfrontend │ │ └── nsfrontend.go ├── events.go ├── go.mod ├── go.sum ├── js │ └── js_linux.go ├── jsinput.go ├── nscon.go ├── nsprojoystick.go ├── psjoystick.go ├── scripts │ └── switch-controller-gadget ├── streaminput.go ├── utils │ └── sync.go └── xboxjoystick.go └── presubmit.sh /.gitignore: -------------------------------------------------------------------------------- 1 | # If you prefer the allow list template instead of the deny list, see community template: 2 | # https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore 3 | # 4 | # Binaries for programs and plugins 5 | *.exe 6 | *.exe~ 7 | *.dll 8 | *.so 9 | *.dylib 10 | 11 | # Test binary, built with `go test -c` 12 | *.test 13 | 14 | # Output of the go coverage tool, specifically when used with LiteIDE 15 | *.out 16 | 17 | # Dependency directories (remove the comment below to include it) 18 | # vendor/ 19 | 20 | # Go workspace file 21 | go.work 22 | go.work.sum 23 | 24 | # env file 25 | .env 26 | -------------------------------------------------------------------------------- /00install.bash: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | set -e 4 | SCRIPT_DIR="${0%/*}" 5 | 6 | cd "$SCRIPT_DIR"/nscontroller/cmd/ 7 | go install ./... 8 | -------------------------------------------------------------------------------- /1-run-backend: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | set -e 4 | 5 | cd "${0%/*}"/nscontroller 6 | 7 | go run ./cmd/nsbackend "$@" 8 | 9 | -------------------------------------------------------------------------------- /2-run-frontend: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | set -e 4 | 5 | cd "${0%/*}"/nscontroller 6 | 7 | go run ./cmd/nsfrontend "$@" 8 | 9 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # raspberry-switch-control 2 | 3 | Emulate Nintendo Switch USB Controller with Raspberry Pi 4 | 5 | Credit: This project heavily relies on https://github.com/mzyy94/nscon. 6 | 7 | ## Hardware requirements 8 | * Raspberry Pi. Tested with Zero W and Pi 4. Not sure if Pi 5 works. (Saw an page saying 5 doesn't support the usb "gadget" mode?) 9 | 10 | ## Set up Raspberry Pi 11 | 12 | Tested on Ubuntu 24 (on Pi 4) and the latest Raspberry Pi OS (on Zero W 2) on 2024-12-31. 13 | 14 | 1. Install libcomposites for the USB gadget mode. (From ) 15 | 16 | # Needed this on Raspberry Pi OS (?). Not needed on Ubuntu. 17 | echo "dtoverlay=dwc2" | sudo tee -a /boot/firmware/config.txt 18 | 19 | 20 | echo "dwc2" | sudo tee -a /etc/modules 21 | echo "libcomposite" | sudo tee -a /etc/modules 22 | 23 | reboot 24 | 25 | 1. Install binary on the Raspberry Pi. 26 | 27 | # Install commands 28 | apt install -y golang xxd git 29 | 30 | go install -v github.com/omakoto/raspberry-switch-control/nscontroller/cmd/...@latest 31 | 32 | 1. ~~Download source for the following script.~~ 33 | 34 | This step is no longer needed. Now you can use the following sudo command to run the script. 35 | 36 | 1. Create the USB gadget by running the `switch-controller-gadget` script. 37 | 38 | The path to this script is not stable. Run `nsbackend usb-init-script-path` to get the path. 39 | 40 | sudo bash "$($HOME/go/bin/nsbackend usb-init-script-path)" 41 | 42 | Or, add the following entry to root's `crontabe` (i.e. `sudo crontab -e` and add it) 43 | Change `/home/pi/` as needed. 44 | 45 | 46 | @reboot bash -c ". $(/home/pi/go/bin/nsbackend usb-init-script-path)" 47 | 48 | 49 | 2. Connect the Raspberry Pi to the Nintendo Switch 50 | 51 | - If it's a Pi 4 or 5, use the USB-C port. 52 | 53 | My configuration: connect the Switch to a *powered* USB hub, then connect it to the Pi's C port. Make sure the Pi can draw enough power. 54 | 55 | - If it's a Zero, use the micro USB port. 56 | 57 | 58 | ## Control Nintendo Switch with Joystick on a PC (via Raspberry Pi) 59 | 60 | 1. Connect the Raspberry Pi to the Switch. 61 | - If using a Pi Zero, connect via the micro-USB port. 62 | - If using a Pi 4, connect to the USB C port. (aka the power port) 63 | - *Either way, to make sure the Pi keeps running even when not connected to the switch, use a powered USB hub.* 64 | 65 | (So, ideally, use a hub with a usb C output and connect it to the Pi, rather than using an A port.) 66 | 67 | 1. Connect a joystick to a host PC. (only the following ones are supported and tested) 68 | 1. Nintendo Pro controller 69 | 2. X-Box One controller 70 | 3. PS4 controller 71 | 72 | 1. On the host PC, install the software: 73 | 74 | apt install -y golang 75 | go install -v github.com/omakoto/raspberry-switch-control/nscontroller/cmd/...@latest 76 | 77 | 1. On the host PC, run it: 78 | 79 | nsfrontend -j /dev/input/js0 -o >(ssh pi@$PI_ADDRESS go/bin/nsbackend) 80 | 81 | 1. Press `[enter]` on the console to finish. 82 | 83 | 84 | ## Run backend as daemon (Advanced use) 85 | 86 | 1. Auto start `nsbackend` as a daemon. Add this to `root`'s crontab. 87 | 88 | $ sudo crontab -l 89 | # ... 90 | @reboot bash -c ". $(/home/pi/go/bin/nsbackend usb-init-script-path); /home/pi/go/bin/nsbackend -x" 91 | 92 | 93 | 1. Then write to `/tmp/nsbackend.fifo` from `nsfrontend` instead: 94 | 95 | nsfrontend -j /dev/input/js0 -o >(ssh pi@$PI_ADDRESS 'echo "SSH Connected."; cat > /tmp/nsbackend.fifo') 96 | 97 | 98 | ## TODOs 99 | 100 | - Autofire on/off 101 | - Macro 102 | 103 | 104 | ## References 105 | 1. Control switch from a smart phone 106 | 1. https://mzyy94.com/blog/2020/03/20/nintendo-switch-pro-controller-usb-gadget/ 107 | 1. https://github.com/mzyy94/nscon 108 | 1. https://gist.github.com/mzyy94/60ae253a45e2759451789a117c59acf9#file-add_procon_gadget-sh 109 | 1. https://www.kernel.org/doc/html/v4.13/driver-api/usb/gadget.html 110 | 1. https://github.com/milador/RaspberryPi-Joystick 111 | 1. https://www.rmedgar.com/blog/using-rpi-zero-as-keyboard-setup-and-device-definition 112 | 1. https://github.com/wchill/SwitchInputEmulator 113 | 1. https://sourceforge.net/projects/linuxconsole/ 114 | 1. https://github.com/progmem/Switch-Fightstick 115 | 1. https://sourceforge.net/p/linuxconsole/code/ci/master/tree/utils/jstest.c 116 | 1. http://www.fourwalledcubicle.com/files/LUFA/Doc/120219/html/group___group___std_descriptors.html 117 | -------------------------------------------------------------------------------- /experimental/go.mod: -------------------------------------------------------------------------------- 1 | module github.com/omakoto/raspberry-switch-control/experiment 2 | 3 | go 1.14 4 | 5 | require ( 6 | github.com/BurntSushi/xgb v0.0.0-20200324125942-20f126ea2843 7 | github.com/BurntSushi/xgbutil v0.0.0-20190907113008-ad855c713046 8 | github.com/omakoto/go-common v0.0.0-20190929182938-7ec82e969da9 9 | ) 10 | -------------------------------------------------------------------------------- /experimental/go.sum: -------------------------------------------------------------------------------- 1 | github.com/BurntSushi/xgb v0.0.0-20200324125942-20f126ea2843 h1:3iF31c7rp7nGZVDv7YQ+VxOgpipVfPKotLXykjZmwM8= 2 | github.com/BurntSushi/xgb v0.0.0-20200324125942-20f126ea2843/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= 3 | github.com/BurntSushi/xgbutil v0.0.0-20190907113008-ad855c713046 h1:O/r2Sj+8QcMF7V5IcmiE2sMFV2q3J47BEirxbXJAdzA= 4 | github.com/BurntSushi/xgbutil v0.0.0-20190907113008-ad855c713046/go.mod h1:uw9h2sd4WWHOPdJ13MQpwK5qYWKYDumDqxWWIknEQ+k= 5 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 6 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 7 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 8 | github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ= 9 | github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU= 10 | github.com/omakoto/go-common v0.0.0-20190929182938-7ec82e969da9 h1:PLuzwAS/CCOxCzg5c67yx0Uv4tSCscIffBvHhaG6hLg= 11 | github.com/omakoto/go-common v0.0.0-20190929182938-7ec82e969da9/go.mod h1:qZAhdjMaCqvLTLpircN5wqm3B0S7eUTd6flSszQF5gE= 12 | github.com/pborman/getopt v0.0.0-20190409184431-ee0cd42419d3/go.mod h1:85jBQOZwpVEaDAr341tbn15RS4fCAsIst0qp7i8ex1o= 13 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 14 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 15 | github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= 16 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 17 | golang.org/x/crypto v0.0.0-20190927123631-a832865fa7ad/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= 18 | golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= 19 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 20 | golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 21 | golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 22 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 23 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 24 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 25 | -------------------------------------------------------------------------------- /experimental/gtktest/gtktest.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | // See: https://github.com/BurntSushi/xgbutil/blob/master/keybind/doc.go 4 | import ( 5 | "fmt" 6 | _ "github.com/BurntSushi/xgb/xproto" 7 | "github.com/BurntSushi/xgbutil" 8 | "github.com/BurntSushi/xgbutil/keybind" 9 | "github.com/BurntSushi/xgbutil/xevent" 10 | "github.com/omakoto/go-common/src/common" 11 | ) 12 | 13 | func main() { 14 | xu, err := xgbutil.NewConn() 15 | common.Checke(err) 16 | 17 | keybind.Initialize(xu) 18 | 19 | // This isn't quite "press/release" because key repeats trigger them. 20 | keybind.KeyPressFun( 21 | func(X *xgbutil.XUtil, ev xevent.KeyPressEvent) { 22 | fmt.Printf("Pressed: %v\n", ev) 23 | }).Connect(xu, xu.RootWin(), "a", true) 24 | 25 | keybind.KeyReleaseFun(func(xu *xgbutil.XUtil, ev xevent.KeyReleaseEvent) { 26 | fmt.Printf("Released: %v\n", ev) 27 | }).Connect(xu, xu.RootWin(), "a", true) 28 | 29 | //xevent.KeyPressFun( 30 | // func(X *xgbutil.XUtil, e xevent.KeyPressEvent) { 31 | // // keybind.LookupString does the magic of implementing parts of 32 | // // the X Keyboard Encoding to determine an english representation 33 | // // of the modifiers/keycode tuple. 34 | // // N.B. It's working for me, but probably isn't 100% correct in 35 | // // all environments yet. 36 | // modStr := keybind.ModifierString(e.State) 37 | // keyStr := keybind.LookupString(X, e.State, e.Detail) 38 | // if len(modStr) > 0 { 39 | // fmt.Printf("Key: %s-%s\n", modStr, keyStr) 40 | // } else { 41 | // fmt.Println("Key:", keyStr) 42 | // } 43 | // 44 | // if keybind.KeyMatch(X, "Escape", e.State, e.Detail) { 45 | // if e.State&xproto.ModMaskControl > 0 { 46 | // fmt.Println("Control-Escape detected. Quitting...") 47 | // xevent.Quit(X) 48 | // } 49 | // } 50 | // }).Connect(xu, xu.RootWin()) 51 | 52 | xevent.Main(xu) 53 | } 54 | -------------------------------------------------------------------------------- /experimental/jspython/jspython.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python3 2 | # Copied from https://gist.githubusercontent.com/rdb/8864666/raw/516178252bbe1cfe8067145b11223ee54c5d9698/js_linux.py 3 | 4 | import os, struct, array 5 | from fcntl import ioctl 6 | 7 | # Iterate over the joystick devices. 8 | print('Available devices:') 9 | 10 | for fn in os.listdir('/dev/input'): 11 | if fn.startswith('js'): 12 | print(' /dev/input/%s' % (fn)) 13 | 14 | # We'll store the states here. 15 | axis_states = {} 16 | button_states = {} 17 | 18 | # These constants were borrowed from linux/input.h 19 | axis_names = { 20 | 0x00 : 'x', # switch L-stick 21 | 0x01 : 'y', # switch L-stick 22 | 0x02 : 'z', 23 | 0x03 : 'rx', # switch R-stick 24 | 0x04 : 'ry', # switch R-stick 25 | 0x05 : 'rz', 26 | 0x06 : 'trottle', 27 | 0x07 : 'rudder', 28 | 0x08 : 'wheel', 29 | 0x09 : 'gas', 30 | 0x0a : 'brake', 31 | 0x10 : 'hat0x', # switch D-pad 32 | 0x11 : 'hat0y', # switch D-pad 33 | 0x12 : 'hat1x', 34 | 0x13 : 'hat1y', 35 | 0x14 : 'hat2x', 36 | 0x15 : 'hat2y', 37 | 0x16 : 'hat3x', 38 | 0x17 : 'hat3y', 39 | 0x18 : 'pressure', 40 | 0x19 : 'distance', 41 | 0x1a : 'tilt_x', 42 | 0x1b : 'tilt_y', 43 | 0x1c : 'tool_width', 44 | 0x20 : 'volume', 45 | 0x28 : 'misc', 46 | } 47 | 48 | button_names = { 49 | 0x120 : 'trigger', 50 | 0x121 : 'thumb', 51 | 0x122 : 'thumb2', 52 | 0x123 : 'top', 53 | 0x124 : 'top2', 54 | 0x125 : 'pinkie', 55 | 0x126 : 'base', 56 | 0x127 : 'base2', 57 | 0x128 : 'base3', 58 | 0x129 : 'base4', 59 | 0x12a : 'base5', 60 | 0x12b : 'base6', 61 | 0x12f : 'dead', 62 | 0x130 : 'a', # switch B 63 | 0x131 : 'b', # switch A 64 | 0x132 : 'c', 65 | 0x133 : 'x', # switch X 66 | 0x134 : 'y', # switch Y 67 | 0x135 : 'z', # switch Capture 68 | 0x136 : 'tl', # switch L 69 | 0x137 : 'tr', # switch R 70 | 0x138 : 'tl2', # switch LZ 71 | 0x139 : 'tr2', # switch RZ 72 | 0x13a : 'select', # switch - 73 | 0x13b : 'start', # switch + 74 | 0x13c : 'mode', # switch Home 75 | 0x13d : 'thumbl', 76 | 0x13e : 'thumbr', 77 | 78 | 0x220 : 'dpad_up', 79 | 0x221 : 'dpad_down', 80 | 0x222 : 'dpad_left', 81 | 0x223 : 'dpad_right', 82 | 83 | # XBox 360 controller uses these codes. 84 | 0x2c0 : 'dpad_left', 85 | 0x2c1 : 'dpad_right', 86 | 0x2c2 : 'dpad_up', 87 | 0x2c3 : 'dpad_down', 88 | } 89 | 90 | axis_map = [] 91 | button_map = [] 92 | 93 | # Open the joystick device. 94 | fn = '/dev/input/js0' 95 | print('Opening %s...' % fn) 96 | jsdev = open(fn, 'rb') 97 | 98 | # Get the device name. 99 | #buf = bytearray(63) 100 | buf = array.array('B', [0] * 64) 101 | ioctl(jsdev, 0x80006a13 + (0x10000 * len(buf)), buf) # JSIOCGNAME(len) 102 | js_name = buf.tobytes().rstrip(b'\x00').decode('utf-8') 103 | print('Device name: %s' % js_name) 104 | 105 | # Get number of axes and buttons. 106 | buf = array.array('B', [0]) 107 | ioctl(jsdev, 0x80016a11, buf) # JSIOCGAXES 108 | num_axes = buf[0] 109 | 110 | buf = array.array('B', [0]) 111 | ioctl(jsdev, 0x80016a12, buf) # JSIOCGBUTTONS 112 | num_buttons = buf[0] 113 | 114 | # Get the axis map. 115 | buf = array.array('B', [0] * 0x40) 116 | ioctl(jsdev, 0x80406a32, buf) # JSIOCGAXMAP 117 | 118 | for axis in buf[:num_axes]: 119 | axis_name = axis_names.get(axis, 'unknown(0x%02x)' % axis) 120 | axis_map.append(axis_name) 121 | axis_states[axis_name] = 0.0 122 | 123 | # Get the button map. 124 | buf = array.array('H', [0] * 200) 125 | ioctl(jsdev, 0x80406a34, buf) # JSIOCGBTNMAP 126 | 127 | for btn in buf[:num_buttons]: 128 | btn_name = button_names.get(btn, 'unknown(0x%03x)' % btn) 129 | button_map.append(btn_name) 130 | button_states[btn_name] = 0 131 | 132 | print('%d axes found: %s' % (num_axes, ', '.join(axis_map))) 133 | print('%d buttons found: %s' % (num_buttons, ', '.join(button_map))) 134 | 135 | # Main event loop 136 | while True: 137 | evbuf = jsdev.read(8) 138 | if evbuf: 139 | time, value, type, number = struct.unpack('IhBB', evbuf) 140 | 141 | if type & 0x80: 142 | print("(initial)", end="") 143 | 144 | if type & 0x01: 145 | button = button_map[number] 146 | if button: 147 | button_states[button] = value 148 | if value: 149 | print("%s pressed" % (button)) 150 | else: 151 | print("%s released" % (button)) 152 | 153 | if type & 0x02: 154 | axis = axis_map[number] 155 | if axis: 156 | fvalue = value / 32767.0 157 | axis_states[axis] = fvalue 158 | print("%s: %.3f" % (axis, fvalue)) -------------------------------------------------------------------------------- /nscontroller/autofire.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import ( 4 | "time" 5 | 6 | "github.com/omakoto/go-common/src/common" 7 | "github.com/omakoto/raspberry-switch-control/nscontroller/utils" 8 | "github.com/pborman/getopt/v2" 9 | ) 10 | 11 | var ( 12 | tickInterval = getopt.IntLong("tick", 't', 10, "Tick interval in milliseconds") 13 | ) 14 | 15 | type AutofireMode int 16 | 17 | const ( 18 | AutofireModeDeactivated = AutofireMode(iota) 19 | AutofireModeNormal 20 | AutofireModeInvert 21 | AutofireModeToggle 22 | ) 23 | 24 | type buttonState struct { 25 | mode AutofireMode 26 | 27 | // interval is the autofire interval for each button. 28 | interval time.Duration 29 | 30 | // autoLastTimestamp is the timestamp of the last on or off autofire event. 31 | autoLastTimestamp time.Time 32 | 33 | // realButtonPressed is whether the button is actually pressed or not. 34 | realButtonPressed bool 35 | 36 | // autofireEnabled is whether autofire is on (so events will be continuously produced) or off. 37 | autofireOn bool 38 | 39 | // lastValue is the last reported value to the next consumer. 40 | lastValue bool 41 | } 42 | 43 | type AutoFirer struct { 44 | syncer *utils.Synchronized 45 | next Consumer 46 | states []buttonState 47 | ticker *time.Ticker 48 | stop chan bool 49 | } 50 | 51 | var _ Worker = (*AutoFirer)(nil) 52 | 53 | func NewAutoFirer(next Consumer) *AutoFirer { 54 | return &AutoFirer{ 55 | utils.NewSynchronized(), 56 | next, 57 | make([]buttonState, ActionButtonLast), 58 | nil, 59 | nil, 60 | } 61 | } 62 | 63 | func (af *AutoFirer) Run() { 64 | af.syncer.Run(func() { 65 | if af.ticker != nil { 66 | common.Fatal("AutoFirer already running") 67 | return 68 | } 69 | common.Debug("AutoFirer started") 70 | af.ticker = time.NewTicker(time.Duration(*tickInterval) * time.Millisecond) 71 | af.stop = make(chan bool) 72 | 73 | ticker := af.ticker 74 | stop := af.stop 75 | 76 | go func() { 77 | loop: 78 | for { 79 | select { 80 | case <-ticker.C: 81 | af.tick() 82 | case <-stop: 83 | break loop 84 | } 85 | } 86 | af.syncer.Run(func() { 87 | af.ticker = nil 88 | af.stop = nil 89 | }) 90 | common.Debug("AutoFirer stopped") 91 | }() 92 | }) 93 | } 94 | 95 | func (af *AutoFirer) Close() error { 96 | af.syncer.Run(func() { 97 | if af.ticker != nil { 98 | common.Debug("AutoFirer stopping") 99 | af.stop <- true 100 | } else { 101 | common.Debug("AutoFirer not running") 102 | } 103 | }) 104 | return nil 105 | } 106 | 107 | func (af *AutoFirer) SetAutofire(a Action, mode AutofireMode, interval time.Duration) { 108 | common.OrFatalf(interval >= 0, "interval must be >= 0 but was: %d", interval) 109 | af.syncer.Run(func() { 110 | af.states[a].mode = mode 111 | af.states[a].interval = interval 112 | 113 | af.setAutofireLocked(&Event{time.Now(), a, 0}, true) 114 | }) 115 | } 116 | 117 | func (af *AutoFirer) setAutofireLocked(ev *Event, force bool) { 118 | bs := &af.states[ev.Action] 119 | pressed := ev.Value == 1 120 | 121 | if bs.realButtonPressed == pressed && !force { 122 | return // Button state hasn't changed; ignore. 123 | } 124 | 125 | bs.realButtonPressed = pressed 126 | 127 | switch bs.mode { 128 | case AutofireModeDeactivated: 129 | af.next(ev) 130 | case AutofireModeNormal: 131 | bs.autofireOn = ev.pressed() 132 | af.sendAutofireEventLocked(ev.Timestamp, ev.Action, pressed) 133 | case AutofireModeInvert: 134 | bs.autofireOn = !ev.pressed() 135 | af.sendAutofireEventLocked(ev.Timestamp, ev.Action, !pressed) 136 | case AutofireModeToggle: 137 | if pressed { 138 | bs.autofireOn = !bs.autofireOn 139 | af.sendAutofireEventLocked(ev.Timestamp, ev.Action, bs.autofireOn) 140 | } 141 | } 142 | } 143 | 144 | func (af *AutoFirer) sendAutofireEventLocked(timestamp time.Time, a Action, pressed bool) { 145 | bs := &af.states[a] 146 | 147 | ev := Event{Timestamp: timestamp, Action: a, Value: BoolToValue(pressed)} 148 | af.next(&ev) 149 | 150 | bs.autoLastTimestamp = ev.Timestamp 151 | bs.lastValue = pressed 152 | } 153 | 154 | func (af *AutoFirer) Consume(ev *Event) { 155 | af.syncer.Run(func() { 156 | if ev.Action.isButton() { 157 | af.setAutofireLocked(ev, false) 158 | } else { 159 | // Just forward any axis events. 160 | af.next(ev) 161 | } 162 | }) 163 | } 164 | 165 | func (af *AutoFirer) tick() { 166 | af.syncer.Run(func() { 167 | // common.Debug("AutoFirer tick") 168 | 169 | now := time.Now() 170 | for a := ActionButtonStart; a < ActionButtonLast; a++ { 171 | bs := &af.states[a] 172 | 173 | if bs.mode == AutofireModeDeactivated || !bs.autofireOn { 174 | continue 175 | } 176 | nextTimestamp := bs.autoLastTimestamp.Add(bs.interval) 177 | if nextTimestamp.After(now) { 178 | return 179 | } 180 | 181 | // Synthesis an event. 182 | af.sendAutofireEventLocked(nextTimestamp, a, !bs.lastValue) 183 | } 184 | 185 | }) 186 | } 187 | -------------------------------------------------------------------------------- /nscontroller/backend_proxy.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import ( 4 | "fmt" 5 | "github.com/omakoto/go-common/src/common" 6 | "github.com/omakoto/raspberry-switch-control/nscontroller/utils" 7 | "io" 8 | ) 9 | 10 | type BackendProxy struct { 11 | syncer *utils.Synchronized 12 | out io.WriteCloser 13 | } 14 | 15 | var _ io.Closer = (*BackendProxy)(nil) 16 | 17 | func NewBackendConsumer(out io.WriteCloser) (*BackendProxy, error) { 18 | return &BackendProxy{utils.NewSynchronized(), out}, nil 19 | } 20 | 21 | func (b *BackendProxy) Close() error { 22 | return b.out.Close() 23 | } 24 | 25 | func (b *BackendProxy) Consume(ev *Event) { 26 | b.syncer.Run(func() { 27 | command := "" 28 | 29 | switch ev.Action { 30 | case ActionButtonA: 31 | command = "a" 32 | case ActionButtonB: 33 | command = "b" 34 | case ActionButtonX: 35 | command = "x" 36 | case ActionButtonY: 37 | command = "y" 38 | 39 | case ActionButtonMinus: 40 | command = "-" 41 | case ActionButtonPlus: 42 | command = "+" 43 | 44 | case ActionButtonHome: 45 | command = "h" 46 | case ActionButtonCapture: 47 | command = "c" 48 | 49 | case ActionButtonDpadUp: 50 | command = "pu" 51 | case ActionButtonDpadDown: 52 | command = "pd" 53 | case ActionButtonDpadLeft: 54 | command = "pl" 55 | case ActionButtonDpadRight: 56 | command = "pr" 57 | 58 | case ActionButtonL: 59 | command = "l1" 60 | case ActionButtonR: 61 | command = "r1" 62 | case ActionButtonLZ: 63 | command = "l2" 64 | case ActionButtonRZ: 65 | command = "r2" 66 | 67 | case ActionButtonLeftStickPress: 68 | command = "lp" 69 | case ActionButtonRightStickPress: 70 | command = "rp" 71 | 72 | case ActionAxisLX: 73 | command = "lx" 74 | case ActionAxisLY: 75 | command = "ly" 76 | 77 | case ActionAxisRX: 78 | command = "rx" 79 | case ActionAxisRY: 80 | command = "ry" 81 | } 82 | 83 | msg := fmt.Sprint(command, " ", ev.Value, "\n") 84 | 85 | _, err := b.out.Write([]byte(msg)) 86 | common.Checkf(err, "Unable to write the message") 87 | }) 88 | } 89 | -------------------------------------------------------------------------------- /nscontroller/cmd/nsbackend/fifo.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "errors" 5 | "os" 6 | "syscall" 7 | 8 | "github.com/omakoto/go-common/src/common" 9 | ) 10 | 11 | func mustCreateFifo(path string) *os.File { 12 | common.Debugf("Creating FIFO at '%s'", path) 13 | 14 | _, err := os.Stat(path) 15 | if err == nil { 16 | // File exists. Delete it. 17 | err = os.Remove(path) 18 | common.Checkf(err, "Cannot delete file: '%s'", path) 19 | } else if !errors.Is(err, os.ErrNotExist) { 20 | common.Checkf(err, "Cannot create file '%s': stat failed", path) 21 | } 22 | err = syscall.Mkfifo(path, 0666) 23 | common.Checkf(err, "Makefifo failed for '%s'", path) 24 | 25 | file, err := os.OpenFile(path, os.O_RDWR, 0666) 26 | common.Checkf(err, "Open failed for '%s'", path) 27 | 28 | return file 29 | } 30 | -------------------------------------------------------------------------------- /nscontroller/cmd/nsbackend/nsbackend.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "bufio" 5 | "fmt" 6 | "math" 7 | "os" 8 | "strconv" 9 | "strings" 10 | "sync" 11 | "syscall" 12 | "time" 13 | 14 | "github.com/omakoto/go-common/src/common" 15 | "github.com/omakoto/go-common/src/daemon" 16 | "github.com/omakoto/go-common/src/fileutils" 17 | "github.com/omakoto/raspberry-switch-control/nscontroller" 18 | "github.com/pborman/getopt/v2" 19 | ) 20 | 21 | const ( 22 | analogToDigitalThreshold = 1.0 23 | ) 24 | 25 | var ( 26 | help = getopt.BoolLong("help", 'h', "help") 27 | debug = getopt.BoolLong("debug", 'd', "Enable debug output") 28 | device = getopt.StringLong("device", 'f', "/dev/hidg0", "Specify device file") 29 | startAsDaemon = getopt.BoolLong("daemon", 'x', "Run as daemon (implies --make-fifo)") 30 | createFifo = getopt.BoolLong("make-fifo", 0, "Create a FIFO and read commands from it") 31 | fifo = getopt.StringLong("fifo", 0, "/tmp/nsbackend.fifo", "Specify FIFO filename") 32 | autoReleaseMillis = getopt.IntLong("auto-release-millis", 'a', 50, "Set auto-release delay in milliseconds") 33 | usbTickIntervalMillis = getopt.IntLong("tick-interval-millis", 0, 5, "Send updates to Switch every this milliseconds") 34 | 35 | autoReleaseDur time.Duration 36 | ) 37 | 38 | // The delay needs to be bigger than the interval within startInputReport(). 39 | const AUTO_RELEASE_MILLIS_MIN = 20 40 | 41 | func parseCommand(s string) (command string, arg float64, autoRelease bool, err error, dur time.Duration) { 42 | command = "" 43 | arg = 0 44 | 45 | arr := strings.Fields(s) 46 | if len(arr) == 0 { 47 | return "", 0, false, nil, 0 48 | } 49 | cmdIndex := 0 50 | 51 | if len(arr[0]) > 0 && '0' <= arr[0][0] && arr[0][0] <= '9' { 52 | durationSec, err := strconv.ParseFloat(arr[0], 32) 53 | if err != nil { 54 | common.Warnf("Invalid float: %#v", arr[1]) 55 | return "", 0, false, err, 0 56 | } 57 | dur = time.Duration(durationSec * float64(time.Second)) 58 | cmdIndex = 1 59 | } 60 | 61 | command = arr[cmdIndex] 62 | if len(arr) > cmdIndex+1 { 63 | arg, err = strconv.ParseFloat(arr[cmdIndex+1], 32) 64 | if err != nil { 65 | common.Warnf("Invalid float: %#v", arr[1]) 66 | return "", 0, false, err, 0 67 | } 68 | if arg < -1 { 69 | arg = -1 70 | } else if arg > 1 { 71 | arg = 1 72 | } 73 | } else { 74 | arg = 1 75 | autoRelease = true 76 | } 77 | 78 | ar := "" 79 | if autoRelease { 80 | ar = " (auto-release)" 81 | } 82 | common.Debugf("Command=%#v arg=%f%s (dur=%v)", command, arg, ar, dur) 83 | return 84 | } 85 | 86 | func aToD(arg float64) (neg, pos uint8) { 87 | if arg >= analogToDigitalThreshold { 88 | pos = 1 89 | neg = 0 90 | } else if arg <= -analogToDigitalThreshold { 91 | pos = 0 92 | neg = 1 93 | } else { 94 | pos = 0 95 | neg = 0 96 | } 97 | return 98 | } 99 | 100 | type Coordinator struct { 101 | con *nscontroller.Controller 102 | ch chan string 103 | wg sync.WaitGroup 104 | started bool 105 | } 106 | 107 | func NewCoordinator(con *nscontroller.Controller) Coordinator { 108 | return Coordinator{ 109 | con: con, 110 | ch: make(chan string, 100), 111 | } 112 | } 113 | 114 | func (co *Coordinator) checkStarted() { 115 | if !co.started { 116 | panic("Not started") 117 | } 118 | } 119 | 120 | func (co *Coordinator) Send(command string) { 121 | co.checkStarted() 122 | if command == "" { 123 | return 124 | } 125 | co.ch <- command 126 | } 127 | 128 | func (co *Coordinator) SendDelayed(command string, delay time.Duration) { 129 | co.checkStarted() 130 | go func() { 131 | time.Sleep(delay) 132 | co.Send(command) 133 | }() 134 | } 135 | 136 | func (co *Coordinator) Close() { 137 | co.ch <- "" 138 | } 139 | 140 | func (co *Coordinator) Start() { 141 | if co.started { 142 | panic("Already started") 143 | } 144 | co.started = true 145 | co.wg.Add(1) 146 | go func() { 147 | defer co.wg.Done() 148 | for command := range co.ch { 149 | if command == "" { 150 | break 151 | } 152 | co.sendToController(command) 153 | } 154 | }() 155 | } 156 | 157 | func (co *Coordinator) Wait() { 158 | co.checkStarted() 159 | co.wg.Wait() 160 | } 161 | 162 | func (co *Coordinator) sendToController(command string) { 163 | command, arg, autoRelease, err, dur := parseCommand(command) 164 | if err != nil || command == "" { 165 | return 166 | } 167 | 168 | // Digital button arg: 0 or 1 169 | var darg uint8 = 0 170 | if math.Abs(arg) >= analogToDigitalThreshold { 171 | darg = 1 172 | } 173 | fdarg := float64(darg) 174 | 175 | // Hmm, analog stick Y is inverted? 176 | con := co.con 177 | 178 | switch command { 179 | case "a": // A 180 | con.Input.Button.A = darg 181 | case "b": // B 182 | con.Input.Button.B = darg 183 | case "x": // X 184 | con.Input.Button.X = darg 185 | case "y": // Y 186 | con.Input.Button.Y = darg 187 | 188 | case "h": // Home 189 | con.Input.Button.Home = darg 190 | case "c": // Capture 191 | con.Input.Button.Capture = darg 192 | 193 | case "m", "-": // Minus 194 | con.Input.Button.Minus = darg 195 | case "p", "+": // Plus 196 | con.Input.Button.Plus = darg 197 | 198 | case "l1": // L1 199 | con.Input.Button.L = darg 200 | case "l2": // L2 201 | con.Input.Button.ZL = darg 202 | case "r1": // R1 203 | con.Input.Button.R = darg 204 | case "r2": // R2 205 | con.Input.Button.ZR = darg 206 | 207 | case "pu": // D-pad up 208 | con.Input.Dpad.Up = darg 209 | case "pd": // D-pad down 210 | con.Input.Dpad.Down = darg 211 | case "pl": // D-pad left 212 | con.Input.Dpad.Left = darg 213 | case "pr": // D-pad right 214 | con.Input.Dpad.Right = darg 215 | 216 | case "pur": // D-pad 217 | con.Input.Dpad.Up = darg 218 | con.Input.Dpad.Right = darg 219 | case "pul": // D-pad 220 | con.Input.Dpad.Up = darg 221 | con.Input.Dpad.Left = darg 222 | case "pdr": // D-pad 223 | con.Input.Dpad.Down = darg 224 | con.Input.Dpad.Right = darg 225 | case "pdl": // D-pad 226 | con.Input.Dpad.Down = darg 227 | con.Input.Dpad.Left = darg 228 | 229 | case "px": // D-pad alternative 230 | con.Input.Dpad.Left, con.Input.Dpad.Right = aToD(arg) 231 | case "py": // D-pad alternative 232 | con.Input.Dpad.Up, con.Input.Dpad.Down = aToD(arg) 233 | 234 | case "lp": // Left stick press 235 | con.Input.Stick.Left.Press = darg 236 | case "rp": // Right stick press 237 | con.Input.Stick.Right.Press = darg 238 | 239 | case "lx": // Left stick X 240 | con.Input.Stick.Left.X = arg 241 | case "ly": // Left stick Y 242 | con.Input.Stick.Left.Y = -arg 243 | 244 | // Left stick alternative 245 | case "lu": 246 | con.Input.Stick.Left.X = 0 247 | con.Input.Stick.Left.Y = -fdarg 248 | case "ld": 249 | con.Input.Stick.Left.X = 0 250 | con.Input.Stick.Left.Y = -fdarg 251 | case "ll": 252 | con.Input.Stick.Left.X = -fdarg 253 | con.Input.Stick.Left.Y = 0 254 | case "lr": 255 | con.Input.Stick.Left.X = fdarg 256 | con.Input.Stick.Left.Y = 0 257 | case "lur": 258 | con.Input.Stick.Left.X = fdarg 259 | con.Input.Stick.Left.Y = fdarg 260 | case "lul": 261 | con.Input.Stick.Left.X = -fdarg 262 | con.Input.Stick.Left.Y = fdarg 263 | case "ldr": 264 | con.Input.Stick.Left.X = fdarg 265 | con.Input.Stick.Left.Y = -fdarg 266 | case "ldl": 267 | con.Input.Stick.Left.X = -fdarg 268 | con.Input.Stick.Left.Y = -fdarg 269 | 270 | case "rx": // Right stick X 271 | con.Input.Stick.Right.X = arg 272 | case "ry": // Right stick Y 273 | con.Input.Stick.Right.Y = -arg 274 | 275 | // Right stick alternative 276 | case "ru": 277 | con.Input.Stick.Right.X = 0 278 | con.Input.Stick.Right.Y = fdarg 279 | case "rd": 280 | con.Input.Stick.Right.X = 0 281 | con.Input.Stick.Right.Y = -fdarg 282 | case "rl": 283 | con.Input.Stick.Right.X = -fdarg 284 | con.Input.Stick.Right.Y = 0 285 | case "rr": 286 | con.Input.Stick.Right.X = fdarg 287 | con.Input.Stick.Right.Y = 0 288 | case "rur": 289 | con.Input.Stick.Right.X = fdarg 290 | con.Input.Stick.Right.Y = fdarg 291 | case "rul": 292 | con.Input.Stick.Right.X = -fdarg 293 | con.Input.Stick.Right.Y = fdarg 294 | case "rdr": 295 | con.Input.Stick.Right.X = fdarg 296 | con.Input.Stick.Right.Y = -fdarg 297 | case "rdl": 298 | con.Input.Stick.Right.X = -fdarg 299 | con.Input.Stick.Right.Y = -fdarg 300 | 301 | default: 302 | common.Warnf("Unknown command: %#v\n", command) 303 | return 304 | } 305 | 306 | con.Send() 307 | con.Dump() 308 | 309 | if autoRelease { 310 | ds := "" 311 | if dur > 0 { 312 | ds = fmt.Sprintf("%f ", math.Max(0, (dur-autoReleaseDur).Seconds())) 313 | } 314 | co.SendDelayed(ds+command+" 0", autoReleaseDur) 315 | } else { 316 | time.Sleep(dur) 317 | } 318 | } 319 | 320 | func mainLoop(con *nscontroller.Controller, input *os.File) error { 321 | co := NewCoordinator(con) 322 | scanner := bufio.NewScanner(input) 323 | 324 | co.Start() 325 | 326 | fmt.Printf("nsbackend: Waiting for input... (^D to exit)\n") 327 | for scanner.Scan() { 328 | input := strings.ToLower(strings.TrimSpace(scanner.Text())) 329 | if input == "q" { 330 | break 331 | } 332 | co.Send(input) 333 | } 334 | fmt.Printf("nsbackend: exiting...\n") 335 | 336 | co.Close() 337 | co.Wait() 338 | 339 | return scanner.Err() 340 | } 341 | 342 | func maybeHandleSubcommand() int { 343 | if len(os.Args) > 1 { 344 | subcommand := os.Args[1] 345 | if !strings.HasPrefix(subcommand, "-") { 346 | switch subcommand { 347 | case "usb-init-script-path": 348 | printUsbInitScriptPath() 349 | return 0 350 | case "show-usb-init-script": 351 | printUsbInitScript() 352 | return 0 353 | default: 354 | common.Fatalf("Unknown subcommand: %s", subcommand) 355 | } 356 | } 357 | } 358 | return -1 359 | } 360 | 361 | func asyncConnect(con *nscontroller.Controller) { 362 | go func() { 363 | // Wait until the device shows up 364 | if !fileutils.FileExists(con.Path()) { 365 | fmt.Printf("Waiting for device '%s' to show up...\n", *device) 366 | for { 367 | if fileutils.FileExists(con.Path()) { 368 | break 369 | } 370 | time.Sleep(time.Millisecond * 100) 371 | } 372 | } 373 | 374 | fmt.Printf("Opening %s...\n", *device) 375 | err := con.Connect() 376 | fmt.Printf("Opened %s\n", *device) 377 | common.Checkf(err, "Unable to connect to device '%s'", *device) 378 | }() 379 | } 380 | 381 | func realMain() int { 382 | syscall.Umask(0) 383 | 384 | if ret := maybeHandleSubcommand(); ret >= 0 { 385 | return ret 386 | } 387 | 388 | getopt.Parse() 389 | if *help { 390 | getopt.Usage() 391 | return 0 392 | } 393 | 394 | if *debug { 395 | // con.LogLevel = 2 396 | common.DebugEnabled = true 397 | common.VerboseEnabled = true 398 | } 399 | 400 | if *startAsDaemon { 401 | if daemon.Start() { 402 | // parent 403 | return 0 404 | } 405 | // In daemon mode, always use FIFO 406 | *createFifo = true 407 | } 408 | 409 | if *autoReleaseMillis < AUTO_RELEASE_MILLIS_MIN { 410 | *autoReleaseMillis = AUTO_RELEASE_MILLIS_MIN 411 | } 412 | autoReleaseDur = time.Duration(*autoReleaseMillis * int(time.Millisecond)) 413 | if device == nil { 414 | *device = "/dev/hidg0" 415 | } 416 | 417 | input := os.Stdin 418 | 419 | if *createFifo { 420 | fmt.Printf("Creating FIFO at %s...\n", input.Name()) 421 | input = mustCreateFifo(*fifo) 422 | fmt.Printf("To stop it, run: echo q > '%s'\n", input.Name()) 423 | fmt.Printf("Reading input from '%s'...\n", input.Name()) 424 | } 425 | 426 | con := nscontroller.NewController(*device, time.Duration(*usbTickIntervalMillis*int(time.Millisecond))) 427 | defer con.Close() 428 | 429 | // Open the USB gadget device asynchronously. 430 | asyncConnect(con) 431 | 432 | err := mainLoop(con, input) 433 | common.Check(err, "Failed to read from input") 434 | 435 | return 0 436 | } 437 | 438 | func main() { 439 | common.RunAndExit(realMain) 440 | } 441 | -------------------------------------------------------------------------------- /nscontroller/cmd/nsbackend/subcommands.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "io" 6 | "os" 7 | "path/filepath" 8 | 9 | "github.com/omakoto/go-common/src/common" 10 | ) 11 | 12 | func usbInitScriptPath() string { 13 | thisFile, _ := common.GetSourceInfo() 14 | return filepath.Clean(filepath.Dir(thisFile) + "/../../scripts/switch-controller-gadget") 15 | } 16 | 17 | func printUsbInitScriptPath() { 18 | fmt.Printf("%s\n", usbInitScriptPath()) 19 | } 20 | 21 | func printUsbInitScript() { 22 | script, err := os.Open(usbInitScriptPath()) 23 | common.Checke(err) 24 | 25 | content, err := io.ReadAll(script) 26 | common.Checke(err) 27 | 28 | fmt.Printf("%s", content) 29 | } 30 | -------------------------------------------------------------------------------- /nscontroller/cmd/nsfrontend/nsfrontend.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "os" 6 | "strings" 7 | 8 | "github.com/omakoto/go-common/src/common" 9 | "github.com/omakoto/raspberry-switch-control/nscontroller" 10 | "github.com/omakoto/raspberry-switch-control/nscontroller/js" 11 | "github.com/pborman/getopt/v2" 12 | ) 13 | 14 | var ( 15 | debug = getopt.BoolLong("debug", 'd', "Enable debug output") 16 | joystick = getopt.StringLong("joystick", 'j', "/dev/input/js0", "Specify joystick device file") 17 | out = getopt.StringLong("out", 'o', "/dev/stdout", "Specify backend file") 18 | 19 | myName = common.MustGetBinName() 20 | ) 21 | 22 | func mustGetDispatcher(js *js.Js) nscontroller.JoystickDispatcher { 23 | if strings.Contains(js.Name, "X-Box One") || strings.Contains(js.Name, "Xbox") { 24 | return nscontroller.XBoxOneJoystickDispatcher 25 | } 26 | if strings.Contains(js.Name, "Nintendo Switch Pro Controller") { 27 | return nscontroller.NSProJoystickDispatcher 28 | } 29 | if strings.Contains(js.Name, "Sony Interactive Entertainment Wireless Controller") { 30 | return nscontroller.PsJoystickDispatcher 31 | } 32 | common.Fatalf("Unknown joystick: %s", js.Name) 33 | return nil 34 | } 35 | 36 | func realMain() int { 37 | getopt.Parse() 38 | 39 | if *debug { 40 | common.DebugEnabled = true 41 | } 42 | 43 | out, err := os.OpenFile(*out, os.O_WRONLY, 0) 44 | common.Checkf(err, "open failed") 45 | 46 | js, err := js.NewJs(*joystick) 47 | common.Checke(err) 48 | 49 | backend, err := nscontroller.NewBackendConsumer(out) 50 | common.Checke(err) 51 | defer backend.Close() 52 | 53 | autoFirer := nscontroller.NewAutoFirer(backend.Consume) 54 | defer autoFirer.Close() 55 | 56 | joystick, err := nscontroller.NewJoystickInput(js, mustGetDispatcher(js), autoFirer.Consume) 57 | common.Checke(err) 58 | defer joystick.Close() 59 | 60 | stdinProxy, err := nscontroller.NewStreamInput(os.Stdin, backend.Consume) 61 | common.Checke(err) 62 | defer stdinProxy.Close() 63 | 64 | autoFirer.Run() 65 | joystick.Run() 66 | stdinProxy.Run() 67 | 68 | fmt.Printf("nsfrontend started: Accepting command from stdin... (^D to finish)\n") 69 | 70 | // ^D to finish 71 | stdinProxy.WaitClose() 72 | 73 | common.Debugf("%s finishing", myName) 74 | 75 | return 0 76 | } 77 | 78 | func main() { 79 | common.RunAndExit(realMain) 80 | } 81 | -------------------------------------------------------------------------------- /nscontroller/events.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import ( 4 | "io" 5 | "time" 6 | ) 7 | 8 | type Action int 9 | 10 | // Buttons and axes for Switch. 11 | const ( 12 | ActionNone = Action(iota) 13 | 14 | ActionButtonA 15 | ActionButtonB 16 | ActionButtonX 17 | ActionButtonY 18 | 19 | ActionButtonMinus 20 | ActionButtonPlus 21 | 22 | ActionButtonHome 23 | ActionButtonCapture 24 | 25 | ActionButtonL 26 | ActionButtonR 27 | ActionButtonLZ 28 | ActionButtonRZ 29 | 30 | ActionButtonDpadUp 31 | ActionButtonDpadDown 32 | ActionButtonDpadLeft 33 | ActionButtonDpadRight 34 | 35 | ActionButtonLeftStickPress 36 | ActionButtonRightStickPress 37 | 38 | // for synthetic events 39 | ActionButtonSynth1 40 | // for synthetic events 41 | ActionButtonSynth2 42 | // for synthetic events 43 | ActionButtonSynth3 44 | // for synthetic events 45 | ActionButtonSynth4 46 | 47 | ActionAxisLX 48 | ActionAxisLY 49 | 50 | ActionAxisRX 51 | ActionAxisRY 52 | 53 | ActionLast 54 | 55 | ActionButtonStart = ActionButtonA 56 | ActionButtonLast = ActionAxisLX 57 | 58 | ActionAxisStart = ActionAxisLX 59 | ActionAxisLast = ActionLast 60 | ) 61 | 62 | func (a Action) isButton() bool { 63 | return ActionButtonStart <= a && a < ActionButtonLast 64 | } 65 | 66 | func (a Action) isAxis() bool { 67 | return ActionAxisStart <= a && a < ActionAxisLast 68 | } 69 | 70 | type Event struct { 71 | Timestamp time.Time 72 | Action Action 73 | Value float64 74 | } 75 | 76 | func (ev *Event) pressed() bool { 77 | return ev.Value == 1 78 | } 79 | 80 | func NewEventFromAction(a Action, value float64) Event { 81 | return Event{ 82 | Timestamp: time.Now(), 83 | Action: a, 84 | Value: value, 85 | } 86 | } 87 | 88 | type Consumer func(ev *Event) 89 | 90 | type Worker interface { 91 | io.Closer 92 | Run() 93 | } 94 | 95 | func BoolToValue(pressed bool) float64 { 96 | if pressed { 97 | return 1 98 | } 99 | return 0 100 | } 101 | 102 | func ValueToBool(v float64) bool { 103 | return v == 1 104 | } 105 | -------------------------------------------------------------------------------- /nscontroller/go.mod: -------------------------------------------------------------------------------- 1 | module github.com/omakoto/raspberry-switch-control/nscontroller 2 | 3 | go 1.23 4 | 5 | toolchain go1.23.0 6 | 7 | require ( 8 | github.com/omakoto/go-common v0.0.0-20250106043038-04d11d1e6ee4 9 | github.com/pborman/getopt v0.0.0-20190409184431-ee0cd42419d3 10 | golang.org/x/sys v0.24.0 11 | ) 12 | 13 | require github.com/davecgh/go-spew v1.1.1 // indirect 14 | -------------------------------------------------------------------------------- /nscontroller/go.sum: -------------------------------------------------------------------------------- 1 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 2 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 3 | github.com/omakoto/go-common v0.0.0-20250106012551-bd15a26150cb h1:tCyR3r2UQhNSW8Qb4Udr8urd3xRpQ6f9uyyT4Om7zNk= 4 | github.com/omakoto/go-common v0.0.0-20250106012551-bd15a26150cb/go.mod h1:79jtLB8yi647+nptKL2Zf2y6zhJAT1ta16hdzi+3RLw= 5 | github.com/omakoto/go-common v0.0.0-20250106043038-04d11d1e6ee4 h1:I1EF105AHqR4kOBHoNnqV+MbuXZKekjvL31a2dZMPsY= 6 | github.com/omakoto/go-common v0.0.0-20250106043038-04d11d1e6ee4/go.mod h1:79jtLB8yi647+nptKL2Zf2y6zhJAT1ta16hdzi+3RLw= 7 | github.com/pborman/getopt v0.0.0-20190409184431-ee0cd42419d3 h1:YtFkrqsMEj7YqpIhRteVxJxCeC3jJBieuLr0d4C4rSA= 8 | github.com/pborman/getopt v0.0.0-20190409184431-ee0cd42419d3/go.mod h1:85jBQOZwpVEaDAr341tbn15RS4fCAsIst0qp7i8ex1o= 9 | golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg= 10 | golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= 11 | -------------------------------------------------------------------------------- /nscontroller/js/js_linux.go: -------------------------------------------------------------------------------- 1 | //go:build linux 2 | 3 | // Package js is a simple API to interact with the joystick (on Linux). 4 | package js 5 | 6 | // Based on: https://gist.githubusercontent.com/rdb/8864666/raw/516178252bbe1cfe8067145b11223ee54c5d9698/js_linux.py 7 | // API reference: https://www.kernel.org/doc/Documentation/input/joystick-api.txt 8 | 9 | import ( 10 | "bytes" 11 | "encoding/binary" 12 | "fmt" 13 | "io" 14 | "os" 15 | "time" 16 | "unsafe" 17 | 18 | "github.com/omakoto/go-common/src/common" 19 | "golang.org/x/sys/unix" 20 | ) 21 | 22 | // TODO Introduce constants 23 | 24 | /** 25 | Button layout: Pro controller 26 | X 27 | Y A 28 | B 29 | 30 | Button layout: X-box one controller 31 | Y 32 | X B 33 | A 34 | */ 35 | 36 | var axisNameMap = map[int]string{ 37 | 0x00: "x", // switch/xbox L-stick 38 | 0x01: "y", // switch/xbox L-stick 39 | 0x02: "z", // xbox L2 [-1..1] 40 | 0x03: "rx", // switch/xbox R-stick 41 | 0x04: "ry", // switch/xbox R-stick 42 | 0x05: "rz", // xbox R2 [-1...1] 43 | 0x06: "trottle", 44 | 0x07: "rudder", 45 | 0x08: "wheel", 46 | 0x09: "gas", 47 | 0x0a: "brake", 48 | 0x10: "hat0x", // switch/xbox D-pad 49 | 0x11: "hat0y", // switch/xbox D-pad 50 | 0x12: "hat1x", 51 | 0x13: "hat1y", 52 | 0x14: "hat2x", 53 | 0x15: "hat2y", 54 | 0x16: "hat3x", 55 | 0x17: "hat3y", 56 | 0x18: "pressure", 57 | 0x19: "distance", 58 | 0x1a: "tilt_x", 59 | 0x1b: "tilt_y", 60 | 0x1c: "tool_width", 61 | 0x20: "volume", 62 | 0x28: "misc", 63 | } 64 | 65 | var buttonNameMap = map[int]string{ 66 | 0x120: "trigger", 67 | 0x121: "thumb", 68 | 0x122: "thumb2", 69 | 0x123: "top", 70 | 0x124: "top2", 71 | 0x125: "pinkie", 72 | 0x126: "base", 73 | 0x127: "base2", 74 | 0x128: "base3", 75 | 0x129: "base4", 76 | 0x12a: "base5", 77 | 0x12b: "base6", 78 | 0x12f: "dead", 79 | 0x130: "a", // switch B / xbox A 80 | 0x131: "b", // switch A / xbox B 81 | 0x132: "c", 82 | 0x133: "x", // switch X / xbox X 83 | 0x134: "y", // switch Y / xbox Y 84 | 0x135: "z", // switch Capture 85 | 0x136: "tl", // switch L / xbox L 86 | 0x137: "tr", // switch R / xbox R 87 | 0x138: "tl2", // switch LZ 88 | 0x139: "tr2", // switch RZ 89 | 0x13a: "select", // switch - / xbox select 90 | 0x13b: "start", // switch + / xbox start 91 | 0x13c: "mode", // switch Home / xbox center 92 | 0x13d: "thumbl", // switch / xbox left stick press 93 | 0x13e: "thumbr", // switch / xbox right stick press 94 | 95 | 0x220: "dpad_up", 96 | 0x221: "dpad_down", 97 | 0x222: "dpad_left", 98 | 0x223: "dpad_right", 99 | 100 | // XBox 360 controller uses these codes. 101 | 0x2c0: "dpad_left", 102 | 0x2c1: "dpad_right", 103 | 0x2c2: "dpad_up", 104 | 0x2c3: "dpad_down", 105 | } 106 | 107 | // Element represents a single axis or button. 108 | type Element struct { 109 | // Number is the number given to the axis/button. 110 | Number int 111 | // Name is the name of the axis/button. 112 | Name string 113 | // Name is the last known value of the axis/button in the range of [-1..1]. 114 | Value float64 115 | // Name is the initial value of the axis/button in the range of [-1..1]. (NOT IMPLEMENTED YET) 116 | InitialValue float64 117 | } 118 | 119 | func (e *Element) setInitialValue() { 120 | e.InitialValue = e.Value 121 | } 122 | 123 | // Js represents a joystick input device. 124 | type Js struct { 125 | DevicePath string 126 | Name string 127 | NumAxes int 128 | NumButtons int 129 | Axes []Element 130 | Buttons []Element 131 | in io.ReadCloser 132 | } 133 | 134 | // JoystickEvent is a single joystick event. 135 | type JoystickEvent struct { 136 | Timestamp time.Time 137 | Value float64 138 | Element *Element 139 | } 140 | 141 | const ( 142 | jsEventButton = 0x01 // button pressed/released 143 | jsEventAxis = 0x02 // joystick moved 144 | jsEventInit = 0x80 // initial state of device 145 | 146 | jsiocgnameBase = 0x80006a13 147 | jsiocgaxes = 0x80016a11 148 | jsiocgbuttons = 0x80016a12 149 | jsiocgaxmap = 0x80406a32 150 | jsiocgbtnmap = 0x80406a34 151 | ) 152 | 153 | func jsiocgname(length int) uintptr { 154 | return uintptr(jsiocgnameBase) + uintptr(0x10000)*uintptr(length) 155 | } 156 | 157 | // NewJs creates a new Js instance with the given device file. 158 | func NewJs(device string) (*Js, error) { 159 | common.Debugf("Opening %s ...", device) 160 | in, err := os.OpenFile(device, os.O_RDONLY, 0) 161 | if err != nil { 162 | return nil, fmt.Errorf("unable to open %#v: %w", device, err) 163 | } 164 | 165 | js := &Js{DevicePath: device, in: in} 166 | 167 | // Get num axes and buttons. 168 | js.NumAxes, err = unix.IoctlGetInt(int(in.Fd()), jsiocgaxes) 169 | if err != nil { 170 | return nil, fmt.Errorf("unable to get number of axes of %#v: %w", device, err) 171 | } 172 | js.NumButtons, err = unix.IoctlGetInt(int(in.Fd()), jsiocgbuttons) 173 | if err != nil { 174 | return nil, fmt.Errorf("unable to get number of buttons of %#v: %w", device, err) 175 | } 176 | 177 | // Get device name. 178 | nameBuf := make([]byte, 256) 179 | _, _, errno := unix.Syscall(unix.SYS_IOCTL, in.Fd(), jsiocgname(len(nameBuf)), uintptr(unsafe.Pointer(&nameBuf[0]))) 180 | if errno != 0 { 181 | return nil, fmt.Errorf("unable to get device name of %#v: %w", device, errno) 182 | } 183 | js.Name = string(bytes.TrimRight(nameBuf, "\000")) 184 | 185 | // Get the axis names. 186 | axisCodes := make([]byte, js.NumAxes) 187 | _, _, errno = unix.Syscall(unix.SYS_IOCTL, in.Fd(), uintptr(jsiocgaxmap), uintptr(unsafe.Pointer(&axisCodes[0]))) 188 | if errno != 0 { 189 | return nil, fmt.Errorf("unable to get axis map of %#v: %w", device, errno) 190 | } 191 | js.Axes = make([]Element, js.NumAxes) 192 | for i, v := range axisCodes { 193 | js.Axes[i].Number = int(v) 194 | name, found := axisNameMap[int(v)] 195 | if !found { 196 | name = fmt.Sprintf("unknown:0x%x", v) 197 | } 198 | js.Axes[i].Name = name 199 | } 200 | 201 | // Get the button names. 202 | buttonCodes := make([]uint16, js.NumButtons) 203 | _, _, errno = unix.Syscall(unix.SYS_IOCTL, in.Fd(), uintptr(jsiocgbtnmap), uintptr(unsafe.Pointer(&buttonCodes[0]))) 204 | if errno != 0 { 205 | return nil, fmt.Errorf("unable to get button map of %#v: %w", device, errno) 206 | } 207 | js.Buttons = make([]Element, js.NumButtons) 208 | for i, v := range buttonCodes { 209 | js.Buttons[i].Number = int(v) 210 | name, found := buttonNameMap[int(v)] 211 | if !found { 212 | name = fmt.Sprintf("unknown:0x%x", v) 213 | } 214 | js.Buttons[i].Name = name 215 | } 216 | 217 | //// Read the initial state. -> not working 218 | //common.Debug("Reading initial state...") 219 | //timeout := unix.Timeval{} 220 | //timeout.Sec = 1 221 | //for { 222 | // fdSet := &unix.FdSet{} 223 | // fdSet.Bits[0] = 1 << in.Fd() 224 | // s, err := unix.Select(1, fdSet, nil, nil, &timeout) 225 | // common.Check(err, "select") 226 | // common.Debugf("select returned %d", s) 227 | // if s < 1 { 228 | // break 229 | // } 230 | // _, err = js.Read() 231 | // if err != nil { 232 | // return nil, err 233 | // } 234 | //} 235 | js.setInitialValues() 236 | 237 | common.Debugf("%s ready to read", js.DevicePath) 238 | common.Dump("Js:", &js) 239 | 240 | return js, nil 241 | } 242 | 243 | func (js *Js) setInitialValues() { 244 | for i := 0; i < len(js.Axes); i++ { 245 | js.Axes[i].setInitialValue() 246 | } 247 | for i := 0; i < len(js.Buttons); i++ { 248 | js.Buttons[i].setInitialValue() 249 | } 250 | } 251 | 252 | func (js *Js) Close() error { 253 | if js.in == nil { 254 | return nil 255 | } 256 | err := js.in.Close() 257 | js.in = nil 258 | return err 259 | } 260 | 261 | // osJsEvent is a single event from the joystick device. 262 | type osJsEvent struct { 263 | // Time is event timestamp in milliseconds 264 | Time uint32 265 | // Value is: fix an axis, [-32767 .. 32767]. for a button, 1 (pressed) or 0 (released). 266 | Value int16 267 | // EventType is a bit field of JsEventXxx values. 268 | EventType uint8 269 | // Number is an axis or button number, 0-based. 270 | Number uint8 271 | } 272 | 273 | func (js *Js) Read() (JoystickEvent, error) { 274 | event := JoystickEvent{} 275 | 276 | // Read the OS event. 277 | var oev osJsEvent 278 | err := binary.Read(js.in, binary.LittleEndian, &oev) 279 | if err == io.EOF { 280 | return event, err 281 | } 282 | if err != nil { 283 | return event, fmt.Errorf("unable to read from %#v: %w", js.DevicePath, err) 284 | } 285 | common.Dump("OsEvent:", &oev) 286 | 287 | // Convert to the result. 288 | event.Timestamp = time.Now() 289 | 290 | switch oev.EventType &^ jsEventInit { 291 | case jsEventAxis: 292 | event.Element = &js.Axes[oev.Number] 293 | event.Value = float64(oev.Value) / 32767.0 294 | case jsEventButton: 295 | event.Element = &js.Buttons[oev.Number] 296 | event.Value = 0 297 | if oev.Value != 0 { 298 | event.Value = 1 299 | } 300 | } 301 | event.Element.Value = event.Value 302 | common.Dump("Event:", &event) 303 | 304 | return event, nil 305 | } 306 | -------------------------------------------------------------------------------- /nscontroller/jsinput.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import ( 4 | "github.com/omakoto/go-common/src/common" 5 | "github.com/omakoto/raspberry-switch-control/nscontroller/js" 6 | "io" 7 | ) 8 | 9 | type JoystickDispatcher func(ev *js.JoystickEvent, con Consumer) 10 | 11 | type JoystickInput struct { 12 | js *js.Js 13 | dispatcher JoystickDispatcher 14 | next Consumer 15 | } 16 | 17 | var _ Worker = (*JoystickInput)(nil) 18 | 19 | func NewJoystickInput(js *js.Js, dispatcher JoystickDispatcher, next Consumer) (*JoystickInput, error) { 20 | return &JoystickInput{js, dispatcher, next}, nil 21 | } 22 | 23 | func (j *JoystickInput) Close() error { 24 | return j.js.Close() 25 | } 26 | 27 | func (j *JoystickInput) Run() { 28 | go func() { 29 | for { 30 | ev, err := j.js.Read() 31 | if err == io.EOF { 32 | common.Debug("Joystick closing") 33 | return 34 | } 35 | common.Checke(err) 36 | common.Debugf("Joystick input=%x", ev.Element.Number) 37 | 38 | j.dispatcher(&ev, j.next) 39 | } 40 | }() 41 | } 42 | -------------------------------------------------------------------------------- /nscontroller/nscon.go: -------------------------------------------------------------------------------- 1 | // SPDX-License-Identifier: GPL-3.0-only 2 | 3 | // Forked from https://github.com/mzyy94/nscon/blob/master/nscon.go 4 | 5 | package nscontroller 6 | 7 | import ( 8 | "encoding/hex" 9 | "errors" 10 | "fmt" 11 | "io" 12 | "log" 13 | "math" 14 | "os" 15 | "sync" 16 | "time" 17 | 18 | "github.com/omakoto/go-common/src/common" 19 | ) 20 | 21 | var SPI_ROM_DATA = map[byte][]byte{ 22 | 0x60: { 23 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 24 | 0xff, 0xff, 0x03, 0xa0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0xff, 0xff, 0xff, 0xff, 25 | 0xf0, 0xff, 0x89, 0x00, 0xf0, 0x01, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0xf9, 0xff, 0x06, 0x00, 26 | 0x09, 0x00, 0xe7, 0x3b, 0xe7, 0x3b, 0xe7, 0x3b, 0xff, 0xff, 0xff, 0xff, 0xff, 0xba, 0x15, 0x62, 27 | 0x11, 0xb8, 0x7f, 0x29, 0x06, 0x5b, 0xff, 0xe7, 0x7e, 0x0e, 0x36, 0x56, 0x9e, 0x85, 0x60, 0xff, 28 | 0x32, 0x32, 0x32, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 29 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 30 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 31 | 0x50, 0xfd, 0x00, 0x00, 0xc6, 0x0f, 0x0f, 0x30, 0x61, 0x96, 0x30, 0xf3, 0xd4, 0x14, 0x54, 0x41, 32 | 0x15, 0x54, 0xc7, 0x79, 0x9c, 0x33, 0x36, 0x63, 0x0f, 0x30, 0x61, 0x96, 0x30, 0xf3, 0xd4, 0x14, 33 | 0x54, 0x41, 0x15, 0x54, 0xc7, 0x79, 0x9c, 0x33, 0x36, 0x63, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 34 | }, 35 | 0x80: { 36 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 37 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 38 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xb2, 0xa1, 0xbe, 0xff, 0x3e, 0x00, 0xf0, 0x01, 0x00, 0x40, 39 | 0x00, 0x40, 0x00, 0x40, 0xfe, 0xff, 0xfe, 0xff, 0x08, 0x00, 0xe7, 0x3b, 0xe7, 0x3b, 0xe7, 0x3b, 40 | }, 41 | } 42 | 43 | type ControllerInput struct { 44 | Dpad struct { 45 | Up, Down, Left, Right uint8 46 | } 47 | Button struct { 48 | A, B, X, Y, R, ZR, L, ZL uint8 49 | Home, Plus, Minus, Capture uint8 50 | } 51 | Stick struct { 52 | Left, Right struct { 53 | X, Y float64 54 | Press uint8 55 | } 56 | } 57 | } 58 | 59 | type Controller struct { 60 | mu sync.Mutex 61 | path string 62 | fp *os.File 63 | count uint8 64 | stopCounter chan struct{} 65 | stopInput chan struct{} 66 | stopCommunicate chan struct{} 67 | Input ControllerInput 68 | currentInput ControllerInput 69 | tickInterval time.Duration 70 | LogLevel int 71 | } 72 | 73 | // NewController creates an instance of Controller with device path 74 | func NewController(path string, tickInterval time.Duration) *Controller { 75 | return &Controller{ 76 | path: path, 77 | tickInterval: tickInterval, 78 | } 79 | } 80 | 81 | func (c *Controller) Path() string { 82 | return c.path 83 | } 84 | 85 | // Close closes all channel and device file 86 | func (c *Controller) Close() { 87 | if c.fp == nil { 88 | if c.LogLevel > 0 { 89 | log.Println("Already closed.") 90 | } 91 | return 92 | } 93 | close(c.stopCounter) 94 | close(c.stopInput) 95 | close(c.stopCommunicate) 96 | // TODO: Send close magic packet 97 | c.fp.Close() 98 | c.fp = nil 99 | } 100 | 101 | func (c *Controller) startCounter() { 102 | ticker := time.NewTicker(c.tickInterval) 103 | 104 | go func() { 105 | defer ticker.Stop() 106 | for { 107 | select { 108 | case <-ticker.C: 109 | c.count++ 110 | case <-c.stopCounter: 111 | return 112 | } 113 | } 114 | }() 115 | } 116 | 117 | func packShorts(short1, short2 uint16) (data []byte) { 118 | data = make([]byte, 3) 119 | data[0] = uint8(short1 & 0xff) 120 | data[1] = uint8(((short2 << 4) & 0xf0) | ((short1 >> 8) & 0x0f)) 121 | data[2] = uint8((short2 >> 4) & 0xff) 122 | return data 123 | } 124 | 125 | func bitInput(input, offset uint8) uint8 { 126 | if input == 0 { 127 | return 0 128 | } 129 | return 1 << offset 130 | } 131 | 132 | func (c *Controller) Send() { 133 | c.mu.Lock() 134 | c.currentInput = c.Input 135 | c.mu.Unlock() 136 | } 137 | 138 | func (c *Controller) Dump() { 139 | c.mu.Lock() 140 | common.Dump("State:", c.Input) 141 | c.mu.Unlock() 142 | } 143 | 144 | func (c *Controller) getInputBuffer() []byte { 145 | c.mu.Lock() 146 | ci := c.currentInput 147 | left := bitInput(ci.Button.Y, 0) | 148 | bitInput(ci.Button.X, 1) | 149 | bitInput(ci.Button.B, 2) | 150 | bitInput(ci.Button.A, 3) | 151 | bitInput(ci.Button.R, 6) | 152 | bitInput(ci.Button.ZR, 7) 153 | 154 | center := bitInput(ci.Button.Minus, 0) | 155 | bitInput(ci.Button.Plus, 1) | 156 | bitInput(ci.Stick.Right.Press, 2) | 157 | bitInput(ci.Stick.Left.Press, 3) | 158 | bitInput(ci.Button.Home, 4) | 159 | bitInput(ci.Button.Capture, 5) 160 | 161 | right := bitInput(ci.Dpad.Down, 0) | 162 | bitInput(ci.Dpad.Up, 1) | 163 | bitInput(ci.Dpad.Right, 2) | 164 | bitInput(ci.Dpad.Left, 3) | 165 | bitInput(ci.Button.L, 6) | 166 | bitInput(ci.Button.ZL, 7) 167 | 168 | lx := uint16(math.Round((1 + ci.Stick.Left.X) * 2047.5)) 169 | ly := uint16(math.Round((1 + ci.Stick.Left.Y) * 2047.5)) 170 | rx := uint16(math.Round((1 + ci.Stick.Right.X) * 2047.5)) 171 | ry := uint16(math.Round((1 + ci.Stick.Right.Y) * 2047.5)) 172 | 173 | c.mu.Unlock() 174 | 175 | leftStick := packShorts(lx, ly) 176 | rightStick := packShorts(rx, ry) 177 | 178 | return []byte{0x81, left, center, right, leftStick[0], leftStick[1], 179 | leftStick[2], rightStick[0], rightStick[1], rightStick[2], 0x00} 180 | } 181 | 182 | func (c *Controller) startInputReport() { 183 | ticker := time.NewTicker(c.tickInterval) 184 | fmt.Print(".") 185 | 186 | go func() { 187 | defer ticker.Stop() 188 | for { 189 | select { 190 | case <-ticker.C: 191 | fmt.Print(".") 192 | c.write(0x30, c.count, c.getInputBuffer()) 193 | case <-c.stopInput: 194 | return 195 | } 196 | } 197 | }() 198 | } 199 | 200 | func (c *Controller) uart(ack bool, subCmd byte, data []byte) { 201 | ackByte := byte(0x00) 202 | if ack { 203 | ackByte = 0x80 204 | if len(data) > 0 { 205 | ackByte |= subCmd 206 | } 207 | } 208 | c.write(0x21, c.count, append(append(c.getInputBuffer(), []byte{ackByte, subCmd}...), data...)) 209 | } 210 | 211 | func (c *Controller) write(ack byte, cmd byte, buf []byte) { 212 | data := append(append([]byte{ack, cmd}, buf...), make([]byte, 62-len(buf))...) 213 | c.fp.Write(data) 214 | if c.LogLevel > 0 { 215 | if ack == 0x30 { 216 | if c.LogLevel > 2 { 217 | log.Println("write:", hex.EncodeToString(data)) 218 | } 219 | } else { 220 | log.Println("write:", hex.EncodeToString(data)) 221 | } 222 | } 223 | } 224 | 225 | // Connect begins connection to device 226 | func (c *Controller) Connect() error { 227 | var err error 228 | if c.fp != nil { 229 | return errors.New("already connected") 230 | } 231 | 232 | c.fp, err = os.OpenFile(c.path, os.O_RDWR|os.O_SYNC, os.ModeDevice) 233 | if err != nil { 234 | return err 235 | } 236 | 237 | c.stopCounter = make(chan struct{}) 238 | c.stopInput = make(chan struct{}) 239 | c.stopCommunicate = make(chan struct{}) 240 | 241 | c.startCounter() 242 | 243 | // Reset magic packet 244 | c.write(0x81, 0x03, []byte{}) 245 | c.write(0x81, 0x01, []byte{0x00, 0x03}) 246 | 247 | go func() { 248 | buf := make([]byte, 128) 249 | 250 | for { 251 | select { 252 | case <-c.stopCommunicate: 253 | return 254 | default: 255 | } 256 | 257 | n, err := c.fp.Read(buf) 258 | if err == io.EOF { 259 | if c.LogLevel > 0 { 260 | log.Println("EOF") 261 | } 262 | break 263 | } 264 | if c.LogLevel > 0 { 265 | log.Println("read:", hex.EncodeToString(buf[:n]), err) 266 | } 267 | switch buf[0] { 268 | case 0x80: 269 | switch buf[1] { 270 | case 0x01: 271 | c.write(0x81, buf[1], []byte{0x00, 0x03, 0x00, 0x00, 0x5e, 0x00, 0x53, 0x5e}) 272 | case 0x02, 0x03: 273 | c.write(0x81, buf[1], []byte{}) 274 | case 0x04: 275 | c.startInputReport() 276 | case 0x05: 277 | close(c.stopInput) 278 | c.stopInput = make(chan struct{}) 279 | } 280 | case 0x01: 281 | switch buf[10] { 282 | case 0x01: // Bluetooth manual pairing 283 | c.uart(true, buf[10], []byte{0x03, 0x01}) 284 | case 0x02: // Request device info 285 | c.uart(true, buf[10], []byte{0x03, 0x48, 0x03, 286 | 0x02, 0x5e, 0x53, 0x00, 0x5e, 0x00, 0x00, 0x03, 0x01}) 287 | case 0x03, 0x08, 0x30, 0x38, 0x40, 0x41, 0x48: // Empty response 288 | c.uart(true, buf[10], []byte{}) 289 | case 0x04: // Empty response 290 | c.uart(true, buf[10], []byte{}) 291 | case 0x10: // Read SPI ROM 292 | data, ok := SPI_ROM_DATA[buf[12]] 293 | if ok { 294 | c.uart(true, buf[10], append(buf[11:16], 295 | data[buf[11]:buf[11]+buf[15]]...)) 296 | if c.LogLevel > 1 { 297 | log.Printf("Read SPI address: %02x%02x[%d] %v\n", 298 | buf[12], buf[11], buf[15], data[buf[11]:buf[11]+buf[15]]) 299 | } 300 | } else { 301 | c.uart(false, buf[10], []byte{}) 302 | if c.LogLevel > 1 { 303 | log.Printf("Unknown SPI address: %02x[%d]\n", buf[12], buf[15]) 304 | } 305 | } 306 | case 0x21: 307 | // FIXME: Check ack value 308 | c.uart(true, buf[10], []byte{0x01, 0x00, 0xff, 0x00, 0x03, 0x00, 0x05, 0x01}) 309 | default: 310 | if c.LogLevel > 1 { 311 | log.Println("UART unknown request", buf[10], buf) 312 | } 313 | } 314 | 315 | case 0x00: 316 | case 0x10: 317 | default: 318 | if c.LogLevel > 1 { 319 | log.Println("unknown request", buf[0]) 320 | } 321 | } 322 | } 323 | }() 324 | 325 | return nil 326 | } 327 | -------------------------------------------------------------------------------- /nscontroller/nsprojoystick.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import "github.com/omakoto/raspberry-switch-control/nscontroller/js" 4 | 5 | // NSProJoystickDispatcher is a dispatcher for the Switch Pro controller. 6 | func NSProJoystickDispatcher(jev *js.JoystickEvent, con Consumer) { 7 | var action Action = ActionNone 8 | 9 | value := jev.Value 10 | 11 | switch jev.Element.Number { 12 | case 0x00: // "x", // switch/xbox L-stick 13 | action = ActionAxisLX 14 | case 0x01: // "y", // switch/xbox L-stick 15 | action = ActionAxisLY 16 | case 0x03: // "rx", // switch/xbox R-stick 17 | action = ActionAxisRX 18 | case 0x04: // "ry", // switch/xbox R-stick 19 | action = ActionAxisRY 20 | 21 | case 0x130: // "a", // switch B / xbox A 22 | action = ActionButtonB 23 | case 0x131: // "b", // switch A / xbox B 24 | action = ActionButtonA 25 | case 0x133: // "x", // switch Y / xbox X 26 | action = ActionButtonX 27 | case 0x134: // "y", // switch X / xbox Y 28 | action = ActionButtonY 29 | case 0x135: // "z" 30 | action = ActionButtonCapture 31 | 32 | case 0x136: // "tl", // switch L / xbox L 33 | action = ActionButtonL 34 | case 0x137: // "tr", // switch R / xbox R 35 | action = ActionButtonR 36 | 37 | case 0x138: // "tl2", // switch LZ 38 | action = ActionButtonLZ 39 | case 0x139: // "tr2", // switch RZ 40 | action = ActionButtonRZ 41 | 42 | case 0x13a: // "select", // switch - / xbox select 43 | action = ActionButtonMinus 44 | case 0x13b: // "start", // switch + / xbox start 45 | action = ActionButtonPlus 46 | case 0x13c: // "mode", // switch Home / xbox center 47 | action = ActionButtonHome 48 | 49 | case 0x13d: // "thumbl", // switch / xbox left stick press 50 | action = ActionButtonLeftStickPress 51 | case 0x13e: // "thumbr", // switch / xbox right stick press 52 | action = ActionButtonRightStickPress 53 | } 54 | 55 | if action != ActionNone { 56 | con(&Event{jev.Timestamp, action, value}) 57 | return 58 | } 59 | 60 | // D-pad requires a special handling 61 | switch jev.Element.Number { 62 | case 0x10: // "hat0x", // switch/xbox D-pad 63 | left := 0.0 64 | right := 0.0 65 | if value < 0 { 66 | left = 1 67 | right = 0 68 | } else if value > 0 { 69 | left = 0 70 | right = 1 71 | } 72 | con(&Event{jev.Timestamp, ActionButtonDpadLeft, left}) 73 | con(&Event{jev.Timestamp, ActionButtonDpadRight, right}) 74 | case 0x11: // "hat0y", // switch/xbox D-pad 75 | up := 0.0 76 | down := 0.0 77 | if value < 0 { 78 | up = 1 79 | down = 0 80 | } else if value > 0 { 81 | up = 0 82 | down = 1 83 | } 84 | con(&Event{jev.Timestamp, ActionButtonDpadUp, up}) 85 | con(&Event{jev.Timestamp, ActionButtonDpadDown, down}) 86 | } 87 | } 88 | -------------------------------------------------------------------------------- /nscontroller/psjoystick.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import "github.com/omakoto/raspberry-switch-control/nscontroller/js" 4 | 5 | // PsJoystickDispatcher is a dispatcher for the PS controller. (Only tested with a PS4 controller.) 6 | func PsJoystickDispatcher(jev *js.JoystickEvent, con Consumer) { 7 | var action Action = ActionNone 8 | 9 | value := jev.Value 10 | 11 | switch jev.Element.Number { 12 | case 0x00: // "x" 13 | action = ActionAxisLX 14 | case 0x01: // "y" 15 | action = ActionAxisLY 16 | case 0x03: // "rx" 17 | action = ActionAxisRX 18 | case 0x04: // "ry" 19 | action = ActionAxisRY 20 | 21 | case 0x130: // "a" 22 | action = ActionButtonB 23 | case 0x131: // "b" 24 | action = ActionButtonA 25 | case 0x133: // "x" 26 | action = ActionButtonX 27 | case 0x134: // "y" 28 | action = ActionButtonY 29 | 30 | case 0x136: // "tl" 31 | action = ActionButtonL 32 | case 0x137: // "tr" 33 | action = ActionButtonR 34 | case 0x138: // "tl2" 35 | action = ActionButtonLZ 36 | case 0x139: // "tr2" 37 | action = ActionButtonRZ 38 | 39 | case 0x13a: // "select", // switch - / xbox select 40 | action = ActionButtonMinus 41 | case 0x13b: // "start", // switch + / xbox start 42 | action = ActionButtonPlus 43 | case 0x13c: // "mode", // switch Home / xbox center 44 | action = ActionButtonHome 45 | 46 | case 0x13d: // "thumbl", // switch / xbox left stick press 47 | action = ActionButtonLeftStickPress 48 | case 0x13e: // "thumbr", // switch / xbox right stick press 49 | action = ActionButtonRightStickPress 50 | } 51 | if action != ActionNone { 52 | con(&Event{jev.Timestamp, action, value}) 53 | return 54 | } 55 | 56 | // D-pad requires a special handling 57 | switch jev.Element.Number { 58 | case 0x10: // "hat0x", // switch/xbox D-pad 59 | left := 0.0 60 | right := 0.0 61 | if value < 0 { 62 | left = 1 63 | right = 0 64 | } else if value > 0 { 65 | left = 0 66 | right = 1 67 | } 68 | con(&Event{jev.Timestamp, ActionButtonDpadLeft, left}) 69 | con(&Event{jev.Timestamp, ActionButtonDpadRight, right}) 70 | case 0x11: // "hat0y", // switch/xbox D-pad 71 | up := 0.0 72 | down := 0.0 73 | if value < 0 { 74 | up = 1 75 | down = 0 76 | } else if value > 0 { 77 | up = 0 78 | down = 1 79 | } 80 | con(&Event{jev.Timestamp, ActionButtonDpadUp, up}) 81 | con(&Event{jev.Timestamp, ActionButtonDpadDown, down}) 82 | } 83 | } 84 | -------------------------------------------------------------------------------- /nscontroller/scripts/switch-controller-gadget: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Copied from: 4 | # https://gist.github.com/mzyy94/60ae253a45e2759451789a117c59acf9#file-add_procon_gadget-sh 5 | 6 | device=/dev/hidg0 7 | 8 | if (( $(id -u) != 0 )) ; then 9 | echo "Error: the script needs to be run as root" 1>&2 10 | exit 1 11 | fi 12 | 13 | if [[ -e $device ]]; then 14 | echo "Device $device already exists" 1>&2 15 | exit 0 16 | fi 17 | 18 | set -e 19 | 20 | cd /sys/kernel/config/usb_gadget/ 21 | mkdir -p procon 22 | cd procon 23 | echo 0x057e > idVendor 24 | echo 0x2009 > idProduct 25 | echo 0x0200 > bcdDevice 26 | echo 0x0200 > bcdUSB 27 | echo 0x00 > bDeviceClass 28 | echo 0x00 > bDeviceSubClass 29 | echo 0x00 > bDeviceProtocol 30 | 31 | mkdir -p strings/0x409 32 | echo "000000000001" > strings/0x409/serialnumber 33 | echo "Nintendo Co., Ltd." > strings/0x409/manufacturer 34 | echo "Pro Controller" > strings/0x409/product 35 | 36 | mkdir -p configs/c.1/strings/0x409 37 | echo "Nintendo Switch Pro Controller" > configs/c.1/strings/0x409/configuration 38 | echo 500 > configs/c.1/MaxPower 39 | echo 0xa0 > configs/c.1/bmAttributes 40 | 41 | mkdir -p functions/hid.usb0 42 | echo 0 > functions/hid.usb0/protocol 43 | echo 0 > functions/hid.usb0/subclass 44 | echo 64 > functions/hid.usb0/report_length 45 | echo 050115000904A1018530050105091901290A150025017501950A5500650081020509190B290E150025017501950481027501950281030B01000100A1000B300001000B310001000B320001000B35000100150027FFFF0000751095048102C00B39000100150025073500463B0165147504950181020509190F2912150025017501950481027508953481030600FF852109017508953F8103858109027508953F8103850109037508953F9183851009047508953F9183858009057508953F9183858209067508953F9183C0 | xxd -r -ps > functions/hid.usb0/report_desc 46 | 47 | ln -s functions/hid.usb0 configs/c.1/ 48 | 49 | ls /sys/class/udc > UDC # Does it synchronously create the device file?? 50 | 51 | chmod 666 $device 52 | 53 | ls -l $device 54 | -------------------------------------------------------------------------------- /nscontroller/streaminput.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import ( 4 | "bufio" 5 | "io" 6 | "regexp" 7 | "strings" 8 | "sync" 9 | "time" 10 | 11 | "github.com/omakoto/go-common/src/common" 12 | ) 13 | 14 | const streamInputOffDelay = time.Millisecond * 60 15 | 16 | type StreamInput struct { 17 | in io.ReadCloser 18 | next Consumer 19 | wg *sync.WaitGroup 20 | } 21 | 22 | var _ Worker = (*StreamInput)(nil) 23 | 24 | func NewStreamInput(in io.ReadCloser, next Consumer) (*StreamInput, error) { 25 | return &StreamInput{ 26 | in, 27 | next, 28 | &sync.WaitGroup{}, 29 | }, nil 30 | } 31 | 32 | func (t *StreamInput) Close() error { 33 | return t.in.Close() 34 | } 35 | 36 | func (t *StreamInput) press(a Action) { 37 | now := time.Now() 38 | on := Event{ 39 | Timestamp: now, 40 | Action: a, 41 | Value: 1, 42 | } 43 | t.next(&on) 44 | go (func() { 45 | off := Event{ 46 | Timestamp: now.Add(streamInputOffDelay), 47 | Action: a, 48 | Value: 0, 49 | } 50 | select { 51 | case <-time.After(streamInputOffDelay): 52 | t.next(&off) 53 | } 54 | })() 55 | } 56 | 57 | func (t *StreamInput) Run() { 58 | comment_re := regexp.MustCompile(`#.*`) 59 | 60 | t.wg.Add(1) 61 | go func() { 62 | defer t.wg.Done() 63 | scanner := bufio.NewScanner(t.in) 64 | for scanner.Scan() { 65 | in := scanner.Text() 66 | command := strings.TrimSpace(comment_re.ReplaceAllString(in, "")) 67 | switch command { 68 | case "a": // A 69 | t.press(ActionButtonA) 70 | case "b": // B 71 | t.press(ActionButtonB) 72 | case "x": // X 73 | t.press(ActionButtonX) 74 | case "y": // Y 75 | t.press(ActionButtonY) 76 | 77 | case "h": // Home 78 | t.press(ActionButtonHome) 79 | case "c": // Capture 80 | t.press(ActionButtonCapture) 81 | 82 | case "m", "-": // Minus 83 | t.press(ActionButtonMinus) 84 | case "p", "+": // Plus 85 | t.press(ActionButtonPlus) 86 | 87 | case "l1": // L1 88 | t.press(ActionButtonL) 89 | case "l2": // L2 90 | t.press(ActionButtonLZ) 91 | case "r1": // R1 92 | t.press(ActionButtonR) 93 | case "r2": // R2 94 | t.press(ActionButtonRZ) 95 | 96 | case "pu": // D-pad up 97 | t.press(ActionButtonDpadUp) 98 | case "pd": // D-pad down 99 | t.press(ActionButtonDpadDown) 100 | case "pl": // D-pad left 101 | t.press(ActionButtonDpadLeft) 102 | case "pr": // D-pad right 103 | t.press(ActionButtonDpadRight) 104 | 105 | case "pur": // D-pad 106 | t.press(ActionButtonDpadUp) 107 | t.press(ActionButtonDpadRight) 108 | case "pul": // D-pad 109 | t.press(ActionButtonDpadUp) 110 | t.press(ActionButtonDpadLeft) 111 | case "pdr": // D-pad 112 | t.press(ActionButtonDpadDown) 113 | t.press(ActionButtonDpadRight) 114 | case "pdl": // D-pad 115 | t.press(ActionButtonDpadDown) 116 | t.press(ActionButtonDpadLeft) 117 | 118 | case "lp": // Left stick press 119 | t.press(ActionButtonLeftStickPress) 120 | case "rp": // Right stick press 121 | t.press(ActionButtonRightStickPress) 122 | 123 | default: 124 | common.Warnf("Unknown command: %#v\n", command) 125 | continue 126 | } 127 | } 128 | }() 129 | } 130 | 131 | func (t *StreamInput) WaitClose() { 132 | t.wg.Wait() 133 | } 134 | -------------------------------------------------------------------------------- /nscontroller/utils/sync.go: -------------------------------------------------------------------------------- 1 | package utils 2 | 3 | import "sync" 4 | 5 | type Synchronized struct { 6 | Mutex *sync.Mutex 7 | } 8 | 9 | func NewSynchronized() *Synchronized { 10 | return &Synchronized{&sync.Mutex{}} 11 | } 12 | 13 | func (s *Synchronized) Run(f func()) { 14 | s.Mutex.Lock() 15 | defer s.Mutex.Unlock() 16 | 17 | f() 18 | } 19 | 20 | func (s *Synchronized) RunForValue(f func() interface{}) interface{} { 21 | s.Mutex.Lock() 22 | defer s.Mutex.Unlock() 23 | 24 | return f() 25 | } 26 | -------------------------------------------------------------------------------- /nscontroller/xboxjoystick.go: -------------------------------------------------------------------------------- 1 | package nscontroller 2 | 3 | import "github.com/omakoto/raspberry-switch-control/nscontroller/js" 4 | 5 | const xboxTriggerThreshold = -0.8 6 | 7 | func xboxTriggerToButton(v float64) float64 { 8 | if v < xboxTriggerThreshold { 9 | return 0 10 | } 11 | return 1 12 | } 13 | 14 | // XBoxOneJoystickDispatcher takes an JoystickEvent and dispatches. 15 | func XBoxOneJoystickDispatcher(jev *js.JoystickEvent, con Consumer) { 16 | var action Action = ActionNone 17 | 18 | value := jev.Value 19 | 20 | switch jev.Element.Number { 21 | case 0x00: // "x", // switch/xbox L-stick 22 | action = ActionAxisLX 23 | case 0x01: // "y", // switch/xbox L-stick 24 | action = ActionAxisLY 25 | case 0x03: // "rx", // switch/xbox R-stick 26 | action = ActionAxisRX 27 | case 0x04: // "ry", // switch/xbox R-stick 28 | action = ActionAxisRY 29 | 30 | case 0x130: // "a", // switch B / xbox A 31 | action = ActionButtonB // a<->b swapped 32 | case 0x131: // "b", // switch A / xbox B 33 | action = ActionButtonA // a<->b swapped 34 | case 0x133: // "x", // switch Y / xbox X 35 | action = ActionButtonY // x<->y swapped 36 | case 0x134: // "y", // switch X / xbox Y 37 | action = ActionButtonX // x<->y swapped 38 | 39 | case 0x136: // "tl", // switch L / xbox L 40 | action = ActionButtonL 41 | case 0x137: // "tr", // switch R / xbox R 42 | action = ActionButtonR 43 | case 0x13a: // "select", // switch - / xbox select 44 | action = ActionButtonMinus 45 | case 0x13b: // "start", // switch + / xbox start 46 | action = ActionButtonPlus 47 | case 0x13c: // "mode", // switch Home / xbox center 48 | action = ActionButtonHome 49 | 50 | case 0x13d: // "thumbl", // switch / xbox left stick press 51 | action = ActionButtonLeftStickPress 52 | case 0x13e: // "thumbr", // switch / xbox right stick press 53 | action = ActionButtonRightStickPress 54 | 55 | case 0x02: // "z", // xbox L2 [-1..1] 56 | action = ActionButtonLZ 57 | value = xboxTriggerToButton(value) 58 | case 0x05: // "rz", // xbox R2 [-1...1] 59 | action = ActionButtonRZ 60 | value = xboxTriggerToButton(value) 61 | } 62 | if action != ActionNone { 63 | con(&Event{jev.Timestamp, action, value}) 64 | return 65 | } 66 | 67 | // D-pad requires a special handling 68 | switch jev.Element.Number { 69 | case 0x10: // "hat0x", // switch/xbox D-pad 70 | left := 0.0 71 | right := 0.0 72 | if value < 0 { 73 | left = 1 74 | right = 0 75 | } else if value > 0 { 76 | left = 0 77 | right = 1 78 | } 79 | con(&Event{jev.Timestamp, ActionButtonDpadLeft, left}) 80 | con(&Event{jev.Timestamp, ActionButtonDpadRight, right}) 81 | case 0x11: // "hat0y", // switch/xbox D-pad 82 | up := 0.0 83 | down := 0.0 84 | if value < 0 { 85 | up = 1 86 | down = 0 87 | } else if value > 0 { 88 | up = 0 89 | down = 1 90 | } 91 | con(&Event{jev.Timestamp, ActionButtonDpadUp, up}) 92 | con(&Event{jev.Timestamp, ActionButtonDpadDown, down}) 93 | } 94 | } 95 | -------------------------------------------------------------------------------- /presubmit.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | set -e 4 | 5 | cd "${0%/*}/nscontroller/" 6 | 7 | go get -v -t honnef.co/go/tools/cmd/... 8 | go get -v -t golang.org/x/lint/golint 9 | 10 | gofmt -s -d $(find . -type f -name '*.go') |& perl -pe 'END{exit($. > 0 ? 1 : 0)}' 11 | 12 | go test -v -race ./... # Run all the tests with the race detector enabled 13 | 14 | echo "Running extra checks..." 15 | go vet ./... # go vet is the official Go static analyzer 16 | # staticcheck ./... | grep -Pv '(func .* unused)' | perl -pe 'END{exit($. > 0 ? 1 : 0)}' 17 | # golint $(go list ./...) | grep -Pv '(exported .* should have)' | perl -pe 'END{exit($. > 0 ? 1 : 0)}' 18 | --------------------------------------------------------------------------------