-
Notifications
You must be signed in to change notification settings - Fork 1
/
DigiJoystick.h
421 lines (338 loc) · 12.7 KB
/
DigiJoystick.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
/*
* Based on Obdev's AVRUSB code and under the same license.
*
* TODO: Make a proper file header. :-)
* Modified for Digispark by Digistump
* And now modified by Sean Murphy (duckythescientist) from a keyboard device to a joystick device
* And now modified by Bluebie to have better code style, not ruin system timers, and have delay() function
* Most of the credit for the joystick code should go to Rapha�l Ass�nat
*/
#ifndef __DigiJoystick_h__
#define __DigiJoystick_h__
#define GCN64_REPORT_SIZE 8
#include <Arduino.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <avr/delay.h>
#include <string.h>
#include <avr/io.h>
#include <avr/sleep.h>
#include <avr/wdt.h>
#include "usbdrv.h"
//#include "devdesc.h"
#include "oddebug.h"
#include "usbconfig.h"
const static uchar *rt_usbHidReportDescriptor = NULL;
static uchar rt_usbHidReportDescriptorSize = 0;
const static uchar *rt_usbDeviceDescriptor = NULL;
static uchar rt_usbDeviceDescriptorSize = 0;
// TODO: Work around Arduino 12 issues better.
//#include <WConstants.h>
//#undef int()
//typedef uint8_t byte;
/* What was most recently read from the controller */
unsigned char last_built_report[GCN64_REPORT_SIZE];
/* What was most recently sent to the host */
unsigned char last_sent_report[GCN64_REPORT_SIZE];
uchar reportBuffer[8];
// report frequency set to default of 50hz
#define DIGIJOYSTICK_DEFAULT_REPORT_INTERVAL 20
static unsigned char must_report = 0;
static unsigned char idle_rate = DIGIJOYSTICK_DEFAULT_REPORT_INTERVAL / 4; // in units of 4ms
// new minimum report frequency system:
static unsigned long last_report_time = 0;
const unsigned char gcn64_usbHidReportDescriptor[] PROGMEM = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x05, // USAGE (Gamepad)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x09, 0x33, // USAGE (Rx)
0x09, 0x34, // USAGE (Ry)
0x09, 0x35, // USAGE (Rz)
0x09, 0x36, // USAGE (Slider)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xFF, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x06, // REPORT_COUNT (6)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0, // END_COLLECTION (Physical)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x10, // USAGE_MAXIMUM (Button 14)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x10, // REPORT_COUNT (16)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0 // END_COLLECTION (Application)
};
#define USBDESCR_DEVICE 1
const unsigned char usbDescrDevice[] PROGMEM = { /* USB device descriptor */
18, /* sizeof(usbDescrDevice): length of descriptor in bytes */
USBDESCR_DEVICE, /* descriptor type */
0x01, 0x01, /* USB version supported */
USB_CFG_DEVICE_CLASS,
USB_CFG_DEVICE_SUBCLASS,
0, /* protocol */
8, /* max packet size */
USB_CFG_VENDOR_ID, /* 2 bytes */
USB_CFG_DEVICE_ID, /* 2 bytes */
USB_CFG_DEVICE_VERSION, /* 2 bytes */
#if USB_CFG_VENDOR_NAME_LEN
1, /* manufacturer string index */
#else
0, /* manufacturer string index */
#endif
#if USB_CFG_DEVICE_NAME_LEN
2, /* product string index */
#else
0, /* product string index */
#endif
#if USB_CFG_SERIAL_NUMBER_LENGTH
3, /* serial number string index */
#else
0, /* serial number string index */
#endif
1, /* number of configurations */
};
void gamecubeBuildReport(unsigned char *reportBuf) {
if (reportBuf != NULL) {
memcpy(reportBuf, last_built_report, GCN64_REPORT_SIZE);
}
memcpy(last_sent_report, last_built_report, GCN64_REPORT_SIZE);
}
int getGamepadReport(unsigned char *dstbuf) {
gamecubeBuildReport(dstbuf);
return GCN64_REPORT_SIZE;
}
void DigiJoystick_init() {
cli();
usbDeviceDisconnect();
_delay_ms(250);
usbDeviceConnect();
rt_usbHidReportDescriptor = gcn64_usbHidReportDescriptor;
rt_usbHidReportDescriptorSize = sizeof(gcn64_usbHidReportDescriptor);
rt_usbDeviceDescriptor = usbDescrDevice;
rt_usbDeviceDescriptorSize = sizeof(usbDescrDevice);
usbInit();
sei();
last_report_time = millis();
}
void DigiJoystick_update() {
usbPoll();
// instead of above code, use millis arduino system to enforce minimum reporting frequency
unsigned long time_since_last_report = millis() - last_report_time;
if (time_since_last_report >= (idle_rate * 4 /* in units of 4ms - usb spec stuff */)) {
last_report_time += idle_rate * 4;
must_report = 1;
}
// if the report has changed, try force an update anyway
if (memcmp(last_built_report, last_sent_report, GCN64_REPORT_SIZE)) {
must_report = 1;
}
// if we want to send a report, signal the host computer to ask us for it with a usb 'interrupt'
if (must_report) {
if (usbInterruptIsReady()) {
must_report = 0;
gamecubeBuildReport(reportBuffer);
usbSetInterrupt(reportBuffer, GCN64_REPORT_SIZE);
}
}
}
// delay while updating until we are finished delaying
void DigiJoystick_delay(long milli) {
unsigned long last = millis();
while (milli > 0) {
unsigned long now = millis();
milli -= now - last;
last = now;
DigiJoystick_update();
}
}
void DigiJoystick_setX(byte value) {
last_built_report[0] = value;
}
void DigiJoystick_setY(byte value) {
last_built_report[1] = value;
}
void DigiJoystick_setXROT(byte value) {
last_built_report[2] = value;
}
void DigiJoystick_setYROT(byte value) {
last_built_report[3] = value;
}
void DigiJoystick_setZROT(byte value) {
last_built_report[4] = value;
}
void DigiJoystick_setSLIDER(byte value) {
last_built_report[5] = value;
}
void DigiJoystick_setButtons(unsigned char low, unsigned char high) {
last_built_report[6] = low;
last_built_report[7] = high;
}
void DigiJoystick_setValues(unsigned char values[]) {
memcpy(last_built_report, values, GCN64_REPORT_SIZE);
}
#ifdef __cplusplus
class DigiJoystickDevice {
public:
DigiJoystickDevice () {
cli();
usbDeviceDisconnect();
_delay_ms(250);
usbDeviceConnect();
rt_usbHidReportDescriptor = gcn64_usbHidReportDescriptor;
rt_usbHidReportDescriptorSize = sizeof(gcn64_usbHidReportDescriptor);
rt_usbDeviceDescriptor = usbDescrDevice;
rt_usbDeviceDescriptorSize = sizeof(usbDescrDevice);
usbInit();
sei();
last_report_time = millis();
}
void update() {
usbPoll();
// instead of above code, use millis arduino system to enforce minimum reporting frequency
unsigned long time_since_last_report = millis() - last_report_time;
if (time_since_last_report >= (idle_rate * 4 /* in units of 4ms - usb spec stuff */)) {
last_report_time += idle_rate * 4;
must_report = 1;
}
// if the report has changed, try force an update anyway
if (memcmp(last_built_report, last_sent_report, GCN64_REPORT_SIZE)) {
must_report = 1;
}
// if we want to send a report, signal the host computer to ask us for it with a usb 'interrupt'
if (must_report) {
if (usbInterruptIsReady()) {
must_report = 0;
gamecubeBuildReport(reportBuffer);
usbSetInterrupt(reportBuffer, GCN64_REPORT_SIZE);
}
}
}
// delay while updating until we are finished delaying
void delay(long milli) {
unsigned long last = millis();
while (milli > 0) {
unsigned long now = millis();
milli -= now - last;
last = now;
update();
}
}
void setX(byte value) {
last_built_report[0] = value;
}
void setY(byte value) {
last_built_report[1] = value;
}
void setXROT(byte value) {
last_built_report[2] = value;
}
void setYROT(byte value) {
last_built_report[3] = value;
}
void setZROT(byte value) {
last_built_report[4] = value;
}
void setSLIDER(byte value) {
last_built_report[5] = value;
}
void setX(char value) {
setX(*(reinterpret_cast<byte *>(&value)));
}
void setY(char value) {
setY(*(reinterpret_cast<byte *>(&value)));
}
void setXROT(char value) {
setXROT(*(reinterpret_cast<byte *>(&value)));
}
void setYROT(char value) {
setYROT(*(reinterpret_cast<byte *>(&value)));
}
void setZROT(char value) {
setZROT(*(reinterpret_cast<byte *>(&value)));
}
void setSLIDER(char value) {
setSLIDER(*(reinterpret_cast<byte *>(&value)));
}
void setButtons(unsigned char low, unsigned char high) {
last_built_report[6] = low;
last_built_report[7] = high;
}
void setButtons(char low,char high) {
setButtons(*reinterpret_cast<unsigned char *>(&low),*reinterpret_cast<unsigned char *>(&high));
}
void setValues(unsigned char values[]) {
memcpy(last_built_report, values, GCN64_REPORT_SIZE);
}
void setValues(char values[]) {
unsigned char *foo = reinterpret_cast<unsigned char *>(values);//preserves bit values in cast
memcpy(last_built_report, foo, GCN64_REPORT_SIZE);
}
//};
// Create global singleton object for users to make use of
DigiJoystickDevice DigiJoystick = DigiJoystickDevice();
#else
struct {
void (*init)(void);
void (*update)(void);
void (*delay)(long);
} DigiJoystick = {
.init = DigiJoystick_init,
.update = DigiJoystick_update,
.delay = DigiJoystick_delay,
};
#endif
#ifdef __cplusplus
extern "C"{
#endif
// USB_PUBLIC uchar usbFunctionSetup
uchar usbFunctionSetup(uchar data[8]) {
usbRequest_t *rq = (usbRequest_t *) data;
usbMsgPtr = reportBuffer;
if ((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS) { // class request type
if (rq->bRequest == USBRQ_HID_GET_REPORT) { // wValue: ReportType (highbyte), ReportID (lowbyte)
// we only have one report type, so don't look at wValue
//curGamepad->buildReport(reportBuffer);
//return curGamepad->report_size;
return GCN64_REPORT_SIZE;
} else if (rq->bRequest == USBRQ_HID_GET_IDLE) {
usbMsgPtr = &idle_rate;
return 1;
} else if (rq->bRequest == USBRQ_HID_SET_IDLE) {
idle_rate = rq->wValue.bytes[1];
}
} else {
/* no vendor specific requests implemented */
}
return 0;
}
uchar usbFunctionDescriptor(struct usbRequest *rq) {
if ((rq->bmRequestType & USBRQ_TYPE_MASK) != USBRQ_TYPE_STANDARD) {
return 0;
}
if (rq->bRequest == USBRQ_GET_DESCRIPTOR) {
// USB spec 9.4.3, high byte is descriptor type
switch (rq->wValue.bytes[1]) {
case USBDESCR_DEVICE:
usbMsgPtr = rt_usbDeviceDescriptor;
return rt_usbDeviceDescriptorSize;
break;
case USBDESCR_HID_REPORT:
usbMsgPtr = rt_usbHidReportDescriptor;
return rt_usbHidReportDescriptorSize;
break;
}
}
return 0;
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // __DigiKeyboard_h__