Move client code into its own repo

This commit is contained in:
Kyle Lemons
2013-11-22 00:38:02 -08:00
parent e929ab6058
commit 992853faa2
3 changed files with 0 additions and 640 deletions

1
xbox/.gitignore vendored
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xbox

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2013/11/21 - Got my xbox one controller. Woo! Hack hack hack.
Here's what we have so far:
When the xbox one controller turns on, it gives you something like:
02 20 11 1c 7e ed 8a 56 0f 45 00 00 5e 04 d1 02 01 00 01 00 17 01 02 00 01 00 01 00 01 00 01 00
^
'-- This byte seems to count upward every time the read returns, roughly twice a second
Should you try to write
04 20
The behavior will change (this is what put us onto this line of investigation).
If you subsequently write any of these:
04 20 ?? 1c 7e ed 8a 56 0f 45 00 00 5e 04 d1 02 01 00 01 00 17 01 02 00 01 00 01 00 01 00 01 00
04 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
04 20 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
The light will turn on (YAY!) and then you can start reading again.
You will read something like the following a few times:
04 f0 01 3a ba 01 10 00 01 00 00 00 00 00 00 00 00 00 00 00 ba 00 7b 00 16 00 1f 00 20 00 27 00 2d 00 4a 00 00 00 00 00 00 00 00 00 02 01 00 00 00 01 00 01 00 00 06 01 02 03 04 06 07 05 01 05
04 f0 02 3a ba 01 10 00 01 00 00 00 00 00 00 00 00 00 00 00 ba 00 7b 00 16 00 1f 00 20 00 27 00 2d 00 4a 00 00 00 00 00 00 00 00 00 02 01 00 00 00 01 00 01 00 00 06 01 02 03 04 06 07 05 01 04
Whenever you hit the xbox button, you will read these:
07 20 01 02 01 5b
07 20 02 02 00 5b
(Note that at various points, the counter byte (the third byte) seems to go back to 1)
1..16 + 0x20
2013/11/21 23:20:05 read 32 bytes: 02 20 09 1c 7e ed 8a 56 0f 45 00 00 5e 04 d1 02 01 00 01 00 17 01 02 00 01 00 01 00 01 00 01 00 [err: <nil>]
2013/11/21 23:20:05 read 8 bytes: 03 20 01 04 80 00 00 00 [err: <nil>]
2013/11/21 23:20:05 read 18 bytes: 20 00 01 0e 00 00 00 00 00 00 97 0a 6f 01 b6 06 37 f8 [err: <nil>]
Actually, the magic number appears to be [05 20].
It seems like [04 20] asks for some calibration data.
Here is an edited session log of me hitting buttons:
2013/11/21 23:33:53 Found Microsoft Xbox One controller
2013/11/21 23:33:53 sent 2 bytes: 05 20 [err: <nil>]
2013/11/21 23:33:53 read 8 bytes: 03 20 01 04 80 00 00 00 [err: <nil>]
a
2013/11/21 23:34:03 read 18 bytes: 20 00 06 0e 10 00 00 00 00 00 73 0b 0f 01 b0 05 7c f8 [err: <nil>]
2013/11/21 23:34:03 read 18 bytes: 20 00 07 0e 00 00 00 00 00 00 73 0b 0f 01 b0 05 7c f8 [err: <nil>]
b
2013/11/21 23:35:23 read 18 bytes: 20 00 22 0e 40 00 00 00 00 00 73 0b 0f 01 b0 05 02 fc [err: <nil>]
2013/11/21 23:35:24 read 18 bytes: 20 00 23 0e 00 00 00 00 00 00 73 0b 0f 01 b0 05 02 fc [err: <nil>]
y
2013/11/21 23:35:27 read 18 bytes: 20 00 27 0e 00 00 00 00 00 00 73 0b 0f 01 b0 05 02 fc [err: <nil>]
2013/11/21 23:35:27 read 18 bytes: 20 00 28 0e 80 00 00 00 00 00 73 0b 0f 01 b0 05 02 fc [err: <nil>]
down
2013/11/21 23:35:35 read 18 bytes: 20 00 44 0e 00 02 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:35:35 read 18 bytes: 20 00 45 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
up
2013/11/21 23:35:40 read 18 bytes: 20 00 46 0e 00 01 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:35:40 read 18 bytes: 20 00 47 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
left
2013/11/21 23:35:45 read 18 bytes: 20 00 48 0e 00 04 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:35:45 read 18 bytes: 20 00 49 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
right
2013/11/21 23:35:50 read 18 bytes: 20 00 4a 0e 00 08 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:35:50 read 18 bytes: 20 00 4b 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:35:53 read 8 bytes: 03 20 07 04 80 01 00 00 [err: <nil>]
share
2013/11/21 23:36:01 read 18 bytes: 20 00 50 0e 08 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:01 read 18 bytes: 20 00 51 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
menu
2013/11/21 23:36:08 read 18 bytes: 20 00 56 0e 04 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:08 read 18 bytes: 20 00 57 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
sync
2013/11/22 00:02:00 read 18 bytes: 20 00 0a 0e 01 00 00 00 00 00 50 0e cf fc 4e 05 37 f8 [err: <nil>]
2013/11/22 00:02:00 read 18 bytes: 20 00 0b 0e 00 00 00 00 00 00 50 0e cf fc 4e 05 37 f8 [err: <nil>]
lb
2013/11/21 23:36:14 read 18 bytes: 20 00 5a 0e 00 10 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:14 read 18 bytes: 20 00 5b 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
rb
2013/11/21 23:36:17 read 18 bytes: 20 00 5e 0e 00 20 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:17 read 18 bytes: 20 00 5f 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
lt
2013/11/21 23:36:25 read 18 bytes: 20 00 64 0e 00 00 a4 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 65 0e 00 00 06 02 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 66 0e 00 00 f4 03 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 67 0e 00 00 ff 03 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 68 0e 00 00 1a 02 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 69 0e 00 00 22 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 6a 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 6b 0e 00 00 b7 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 6c 0e 00 00 9a 02 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 6d 0e 00 00 ff 03 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 6e 0e 00 00 59 03 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:25 read 18 bytes: 20 00 6f 0e 00 00 22 01 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
rt
2013/11/21 23:36:28 read 18 bytes: 20 00 72 0e 00 00 00 00 12 01 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 73 0e 00 00 00 00 88 02 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 74 0e 00 00 00 00 ff 03 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 75 0e 00 00 00 00 30 03 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 76 0e 00 00 00 00 90 01 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 77 0e 00 00 00 00 40 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 78 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 79 0e 00 00 00 00 22 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 7a 0e 00 00 00 00 d5 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 7b 0e 00 00 00 00 f6 01 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 7c 0e 00 00 00 00 a5 03 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:28 read 18 bytes: 20 00 7d 0e 00 00 00 00 ff 03 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:29 read 18 bytes: 20 00 7e 0e 00 00 00 00 47 03 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:29 read 18 bytes: 20 00 7f 0e 00 00 00 00 c8 01 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:29 read 18 bytes: 20 00 80 0e 00 00 00 00 94 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:29 read 18 bytes: 20 00 81 0e 00 00 00 00 00 00 73 0b 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:33 read 8 bytes: 03 20 09 04 80 01 00 00 [err: <nil>]
left stick
2013/11/21 23:36:34 read 18 bytes: 20 00 83 0e 00 00 00 00 00 00 69 0a 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 84 0e 00 00 00 00 00 00 c9 09 0f 01 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 85 0e 00 00 00 00 00 00 3b 09 0f 01 85 05 41 f7 [err: <nil>]
...
2013/11/21 23:36:34 read 18 bytes: 20 00 9c 0e 00 00 00 00 00 00 ff 7f f1 b1 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 9d 0e 00 00 00 00 00 00 ff 7f b5 d1 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 9e 0e 00 00 00 00 00 00 ff 7f 60 d6 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 9f 0e 00 00 00 00 00 00 ff 7f 6e 07 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 a0 0e 00 00 00 00 00 00 ff 7f 3f 0c 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 a1 0e 00 00 00 00 00 00 ff 7f 88 38 85 05 41 f7 [err: <nil>]
2013/11/21 23:36:34 read 18 bytes: 20 00 a2 0e 00 00 00 00 00 00 ff 7f cd 3b 85 05 41 f7 [err: <nil>]
right stick
2013/11/21 23:36:38 read 18 bytes: 20 00 e3 0e 00 00 00 00 00 00 69 0a c3 fe 3e 05 46 ef [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 e4 0e 00 00 00 00 00 00 69 0a c3 fe 3e 05 24 ec [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 e5 0e 00 00 00 00 00 00 69 0a c3 fe 3e 05 f6 e7 [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 e6 0e 00 00 00 00 00 00 69 0a c3 fe 21 08 d6 e3 [err: <nil>]
...
2013/11/21 23:36:38 read 18 bytes: 20 00 ee 0e 00 00 00 00 00 00 69 0a c3 fe ff 7f 24 e2 [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 ef 0e 00 00 00 00 00 00 69 0a c3 fe ff 7f 3b e6 [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 f0 0e 00 00 00 00 00 00 69 0a c3 fe ff 7f 3a 0d [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 f1 0e 00 00 00 00 00 00 69 0a c3 fe ff 7f 04 12 [err: <nil>]
2013/11/21 23:36:38 read 18 bytes: 20 00 f2 0e 00 00 00 00 00 00 69 0a c3 fe ff 7f 3e 3b [err: <nil>]
Open questions:
Are battery levels included in one of the status lines?

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// Copyright 2013 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"encoding/binary"
"flag"
"fmt"
"log"
"math"
"time"
"github.com/kylelemons/gousb/usb"
)
var (
readonly = flag.Bool("readonly", false, "Only read from the controller")
debug = flag.Int("debug", 0, "USB debugging control")
)
type modelInfo struct {
config, iface, setup, endIn, endOut uint8
kind string
}
func main() {
flag.Parse()
ctx := usb.NewContext()
defer ctx.Close()
if *debug != 0 {
ctx.Debug(*debug)
}
var model modelInfo
devs, err := ctx.ListDevices(func(desc *usb.Descriptor) bool {
switch {
case desc.Vendor == 0x045e && desc.Product == 0x028e:
log.Printf("Found standard Microsoft controller")
/*
250.006 045e:028e Xbox360 Controller (Microsoft Corp.)
Protocol: Vendor Specific Class (Vendor Specific Subclass) Vendor Specific Protocol
Config 01:
--------------
Interface 00 Setup 00
Vendor Specific Class
Endpoint 1 IN interrupt - unsynchronized data [32 0]
Endpoint 1 OUT interrupt - unsynchronized data [32 0]
--------------
Interface 01 Setup 00
Vendor Specific Class
Endpoint 2 IN interrupt - unsynchronized data [32 0]
Endpoint 2 OUT interrupt - unsynchronized data [32 0]
Endpoint 3 IN interrupt - unsynchronized data [32 0]
Endpoint 3 OUT interrupt - unsynchronized data [32 0]
--------------
Interface 02 Setup 00
Vendor Specific Class
Endpoint 0 IN interrupt - unsynchronized data [32 0]
--------------
Interface 03 Setup 00
Vendor Specific Class
--------------
*/
model = modelInfo{1, 0, 0, 1, 1, "360"}
case desc.Vendor == 0x045e && desc.Product == 0x02d1:
log.Printf("Found Microsoft Xbox One controller")
/*
250.006 045e:02d1 Unknown (Microsoft Corp.)
Protocol: Vendor Specific Class
Config 01:
--------------
Interface 00 Setup 00
Vendor Specific Class
Endpoint 1 OUT interrupt - unsynchronized data [64 0]
Endpoint 1 IN interrupt - unsynchronized data [64 0]
--------------
Interface 01 Setup 00
Vendor Specific Class
Interface 01 Setup 01
Vendor Specific Class
Endpoint 2 OUT isochronous - unsynchronized data [228 0]
Endpoint 2 IN isochronous - unsynchronized data [228 0]
--------------
Interface 02 Setup 00
Vendor Specific Class
Interface 02 Setup 01
Vendor Specific Class
Endpoint 3 OUT bulk - unsynchronized data [64 0]
Endpoint 3 IN bulk - unsynchronized data [64 0]
--------------
*/
model = modelInfo{1, 0, 0, 1, 1, "one"}
case desc.Vendor == 0x1689 && desc.Product == 0xfd00:
log.Printf("Found Razer Onza Tournament controller")
/*
250.006 1689:fd00 Unknown 1689:fd00
Protocol: Vendor Specific Class (Vendor Specific Subclass) Vendor Specific Protocol
Config 01:
--------------
Interface 00 Setup 00
Vendor Specific Class
Endpoint 1 IN interrupt - unsynchronized data [32 0]
Endpoint 2 OUT interrupt - unsynchronized data [32 0]
--------------
Interface 01 Setup 00
Vendor Specific Class
Endpoint 3 IN interrupt - unsynchronized data [32 0]
Endpoint 0 OUT interrupt - unsynchronized data [32 0]
Endpoint 1 IN interrupt - unsynchronized data [32 0]
Endpoint 1 OUT interrupt - unsynchronized data [32 0]
--------------
Interface 02 Setup 00
Vendor Specific Class
Endpoint 2 IN interrupt - unsynchronized data [32 0]
--------------
Interface 03 Setup 00
Vendor Specific Class
--------------
*/
model = modelInfo{1, 0, 0, 1, 2, "360"}
default:
return false
}
return true
})
if err != nil {
log.Fatalf("listdevices: %s", err)
}
defer func() {
for _, d := range devs {
d.Close()
}
}()
if len(devs) != 1 {
log.Fatalf("found %d devices, want 1", len(devs))
}
controller := devs[0]
if err := controller.Reset(); err != nil {
log.Fatalf("reset: %s", err)
}
in, err := controller.OpenEndpoint(
model.config,
model.iface,
model.setup,
model.endIn|uint8(usb.ENDPOINT_DIR_IN))
if err != nil {
log.Fatalf("in: openendpoint: %s", err)
}
out, err := controller.OpenEndpoint(
model.config,
model.iface,
model.setup,
model.endOut|uint8(usb.ENDPOINT_DIR_OUT))
if err != nil {
log.Fatalf("out: openendpoint: %s", err)
}
switch {
case *readonly:
var b [512]byte
for {
n, err := in.Read(b[:])
log.Printf("read %d bytes: % x [err: %v]", n, b[:n], err)
if err != nil {
break
}
}
case model.kind == "360":
XBox360(controller, in, out)
case model.kind == "one":
XBoxOne(controller, in, out)
}
}
func XBox360(controller *usb.Device, in, out usb.Endpoint) {
// https://github.com/Grumbel/xboxdrv/blob/master/PROTOCOL
const (
Empty byte = iota // 00000000 ( 0) no LEDs
WarnAll // 00000001 ( 1) flash all briefly
NewPlayer1 // 00000010 ( 2) p1 flash then solid
NewPlayer2 // 00000011
NewPlayer3 // 00000100
NewPlayer4 // 00000101
Player1 // 00000110 ( 6) p1 solid
Player2 // 00000111
Player3 // 00001000
Player4 // 00001001
Waiting // 00001010 (10) empty w/ loops
WarnPlayer // 00001011 (11) flash active
_ // 00001100 (12) empty
Battery // 00001101 (13) squiggle
Searching // 00001110 (14) slow flash
Booting // 00001111 (15) solid then flash
)
led := func(b byte) {
out.Write([]byte{0x01, 0x03, b})
}
setPlayer := func(player byte) {
spin := []byte{
Player1, Player2, Player4, Player3,
}
spinIdx := 0
spinDelay := 100 * time.Millisecond
led(Booting)
time.Sleep(100 * time.Millisecond)
for spinDelay > 20*time.Millisecond {
led(spin[spinIdx])
time.Sleep(spinDelay)
spinIdx = (spinIdx + 1) % len(spin)
spinDelay -= 5 * time.Millisecond
}
for i := 0; i < 40; i++ { // just for safety
cur := spin[spinIdx]
led(cur)
time.Sleep(spinDelay)
spinIdx = (spinIdx + 1) % len(spin)
if cur == player {
break
}
}
}
led(Empty)
time.Sleep(1 * time.Second)
setPlayer(Player1)
var b [512]byte
for {
n, err := in.Read(b[:])
log.Printf("read %d bytes: % x [err: %v]", n, b[:n], err)
if err != nil {
break
}
}
/*
time.Sleep(1 * time.Second)
setPlayer(Player2)
time.Sleep(1 * time.Second)
setPlayer(Player3)
time.Sleep(1 * time.Second)
setPlayer(Player4)
time.Sleep(5 * time.Second)
led(Waiting)
*/
var last, cur [512]byte
decode := func() {
n, err := in.Read(cur[:])
if err != nil || n != 20 {
log.Printf("ignoring read: %d bytes, err = %v", n, err)
return
}
// 1-bit values
for _, v := range []struct {
idx int
bit uint
name string
}{
{2, 0, "DPAD U"},
{2, 1, "DPAD D"},
{2, 2, "DPAD L"},
{2, 3, "DPAD R"},
{2, 4, "START"},
{2, 5, "BACK"},
{2, 6, "THUMB L"},
{2, 7, "THUMB R"},
{3, 0, "LB"},
{3, 1, "RB"},
{3, 2, "GUIDE"},
{3, 4, "A"},
{3, 5, "B"},
{3, 6, "X"},
{3, 7, "Y"},
} {
c := cur[v.idx] & (1 << v.bit)
l := last[v.idx] & (1 << v.bit)
if c == l {
continue
}
switch {
case c != 0:
log.Printf("Button %q pressed", v.name)
case l != 0:
log.Printf("Button %q released", v.name)
}
}
// 8-bit values
for _, v := range []struct {
idx int
name string
}{
{4, "LT"},
{5, "RT"},
} {
c := cur[v.idx]
l := last[v.idx]
if c == l {
continue
}
log.Printf("Trigger %q = %v", v.name, c)
}
dword := func(hi, lo byte) int16 {
return int16(hi)<<8 | int16(lo)
}
// +y
// N
// -x W-|-E +x
// S
// -y
dirs := [...]string{
"W", "SW", "S", "SE", "E", "NE", "N", "NW", "W",
}
dir := func(x, y int16) (string, int32) {
// Direction
rad := math.Atan2(float64(y), float64(x))
dir := 4 * rad / math.Pi
card := int(dir + math.Copysign(0.5, dir))
// Magnitude
mag := math.Sqrt(float64(x)*float64(x) + float64(y)*float64(y))
return dirs[card+4], int32(mag)
}
// 16-bit values
for _, v := range []struct {
hiX, loX int
hiY, loY int
name string
}{
{7, 6, 9, 8, "LS"},
{11, 10, 13, 12, "RS"},
} {
c, cmag := dir(
dword(cur[v.hiX], cur[v.loX]),
dword(cur[v.hiY], cur[v.loY]),
)
l, lmag := dir(
dword(last[v.hiX], last[v.loX]),
dword(last[v.hiY], last[v.loY]),
)
ccenter := cmag < 10240
lcenter := lmag < 10240
if ccenter && lcenter {
continue
}
if c == l && cmag == lmag {
continue
}
if cmag > 10240 {
log.Printf("Stick %q = %v x %v", v.name, c, cmag)
} else {
log.Printf("Stick %q centered", v.name)
}
}
last, cur = cur, last
}
controller.ReadTimeout = 60 * time.Second
for {
decode()
}
}
func XBoxOne(controller *usb.Device, in, out usb.Endpoint) {
read := func() (tag, code byte, data []byte, err error) {
var b [64]byte
n, err := in.Read(b[:])
log.Printf("read %d bytes: % x [err: %v]", n, b[:n], err)
if err != nil {
return 0, 0, nil, err
}
if n < 2 {
return 0, 0, nil, fmt.Errorf("only read %d bytes", n)
}
return b[0], b[1], b[2:], nil
}
write := func(data ...byte) error {
n, err := out.Write(data)
log.Printf("sent %d bytes: % x [err: %v]", n, data, err)
if n < len(data) {
return fmt.Errorf("only sent %d of %d bytes", n, len(data))
}
return err
}
dieIf := func(err error, format string, args ...interface{}) {
if err == nil {
return
}
msg := fmt.Sprintf(format, args...)
log.Fatalf("%s: %s", msg, err)
}
var err error
// Initializ
err = write(0x05, 0x20)
dieIf(err, "initialization")
decode := func(data []byte) {
if len(data) != 16 {
log.Printf("Only got %d bytes (want 16)", len(data))
}
var (
_ = data[0] // sequence number
_ = data[1] // unknown
btn1 = data[2] // ybxaSM?N S=share, M=Menu, N=Sync
btn2 = data[3] // ?lr?RLDU r=R-Thumb, l=L-Thumb, R=D-Right, L=D-Left, D=D-Down, U=D-Up
lt = binary.LittleEndian.Uint16(data[4:6]) // left trigger, 0..1024
rt = binary.LittleEndian.Uint16(data[6:8]) // right trigger, 0..1024
lx = int16(binary.LittleEndian.Uint16(data[8:10])) // right stick X
ly = int16(binary.LittleEndian.Uint16(data[10:12])) // right stick X
rx = int16(binary.LittleEndian.Uint16(data[12:14])) // right stick X
ry = int16(binary.LittleEndian.Uint16(data[14:16])) // right stick X
)
// btn1, least to most significant
for i, btn := range []string{
"SYNC", "BTN1|0x02", "MENU", "SHARE",
"A", "X", "B", "Y",
} {
if btn1&(1<<uint(i)) != 0 {
log.Print(btn)
}
}
// btn2, least to most significant
for i, btn := range []string{
"D-Up", "D-Down", "D-Left", "D-Right",
"L-Trigger", "R-Trigger", "L-Stick", "R-Stick",
} {
if btn2&(1<<uint(i)) != 0 {
log.Print(btn)
}
}
log.Print(lt, rt)
log.Print(lx, ly, " | ", rx, ry)
}
for {
tag, _, data, _ := read()
switch tag {
case 0x20:
decode(data)
}
}
}