Endpoint.c 14.3 KB
Newer Older
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
/*
             LUFA Library
     Copyright (C) Dean Camera, 2009.
              
  dean [at] fourwalledcubicle [dot] com
      www.fourwalledcubicle.com
*/

/*
  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

  Permission to use, copy, modify, and distribute this software
  and its documentation for any purpose and without fee is hereby
  granted, provided that the above copyright notice appear in all
  copies and that both that the copyright notice and this
  permission notice and warranty disclaimer appear in supporting
  documentation, and that the name of the author not be used in
  advertising or publicity pertaining to distribution of the
  software without specific, written prior permission.

  The author disclaim all warranties with regard to this
  software, including all implied warranties of merchantability
  and fitness.  In no event shall the author be liable for any
  special, indirect or consequential damages or any damages
  whatsoever resulting from loss of use, data or profits, whether
  in an action of contract, negligence or other tortious action,
  arising out of or in connection with the use or performance of
  this software.
*/

31
32
#include "../HighLevel/USBMode.h"

33
34
35
36
37
38
39
40
41
#if defined(USB_CAN_BE_DEVICE)

#define  INCLUDE_FROM_ENDPOINT_C
#include "Endpoint.h"

#if !defined(FIXED_CONTROL_ENDPOINT_SIZE)
uint8_t USB_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE;
#endif

42
uint8_t Endpoint_BytesToEPSizeMaskDynamic(const uint16_t Size)
43
{
44
	return Endpoint_BytesToEPSizeMask(Size);
45
}
46
47

bool Endpoint_ConfigureEndpoint_Prv(const uint8_t Number, const uint8_t UECFG0XData, const uint8_t UECFG1XData)
48
49
50
51
{
	Endpoint_SelectEndpoint(Number);
	Endpoint_EnableEndpoint();

52
	UECFG1X = 0;
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73

	UECFG0X = UECFG0XData;
	UECFG1X = UECFG1XData;

	return Endpoint_IsConfigured();
}

void Endpoint_ClearEndpoints(void)
{
	UEINT = 0;

	for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)
	{
		Endpoint_SelectEndpoint(EPNum);	
		UEIENX = 0;
		UEINTX = 0;
		Endpoint_DeallocateMemory();
		Endpoint_DisableEndpoint();
	}
}

74
#if !defined(CONTROL_ONLY_DEVICE)
75
76
uint8_t Endpoint_WaitUntilReady(void)
{
77
78
79
	#if (USB_STREAM_TIMEOUT_MS < 0xFF)
	uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;	
	#else
80
	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
81
	#endif
82

83
	for (;;)
84
	{
85
86
87
88
89
90
91
92
93
94
95
		if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN)
		{
			if (Endpoint_IsINReady())
			  return ENDPOINT_READYWAIT_NoError;
		}
		else
		{
			if (Endpoint_IsOUTReceived())
			  return ENDPOINT_READYWAIT_NoError;		
		}
		
96
97
98
99
100
		if (!(USB_IsConnected))
		  return ENDPOINT_READYWAIT_DeviceDisconnected;
		else if (Endpoint_IsStalled())
		  return ENDPOINT_READYWAIT_EndpointStalled;
			  
101
		if (USB_INT_HasOccurred(USB_INT_SOFI))
102
		{
103
			USB_INT_Clear(USB_INT_SOFI);
104
105
106
107
108
109
110
111
112

			if (!(TimeoutMSRem--))
			  return ENDPOINT_READYWAIT_Timeout;
		}
	}
}

uint8_t Endpoint_Discard_Stream(uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
113
                                , StreamCallbackPtr_t Callback
114
115
116
117
118
119
120
121
#endif
								)
{
	uint8_t  ErrorCode;
	
	if ((ErrorCode = Endpoint_WaitUntilReady()))
	  return ErrorCode;

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
	#if defined(FAST_STREAM_TRANSFERS)
	uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);

	if (Length >= 8)
	{
		Length -= BytesRemToAlignment;

		switch (BytesRemToAlignment)
		{
			default:
				do
				{
					if (!(Endpoint_IsReadWriteAllowed()))
					{
						Endpoint_ClearOUT();

						#if !defined(NO_STREAM_CALLBACKS)
						if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
						  return ENDPOINT_RWSTREAM_CallbackAborted;
						#endif

						if ((ErrorCode = Endpoint_WaitUntilReady()))
						  return ErrorCode;
					}

					Length -= 8;
					
					Endpoint_Discard_Byte();
			case 7: Endpoint_Discard_Byte();
			case 6: Endpoint_Discard_Byte();
			case 5: Endpoint_Discard_Byte();
			case 4: Endpoint_Discard_Byte();
			case 3: Endpoint_Discard_Byte();
			case 2: Endpoint_Discard_Byte();
			case 1:	Endpoint_Discard_Byte();
				} while (Length >= 8);	
		}
	}
	#endif

162
	while (Length)
163
	{
164
		if (!(Endpoint_IsReadWriteAllowed()))
165
		{
166
			Endpoint_ClearOUT();
167
168
169

			#if !defined(NO_STREAM_CALLBACKS)
			if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
170
			  return ENDPOINT_RWSTREAM_CallbackAborted;
171
172
173
174
175
			#endif

			if ((ErrorCode = Endpoint_WaitUntilReady()))
			  return ErrorCode;
		}
176
177
178
		else
		{
			Endpoint_Discard_Byte();
179
			Length--;
180
		}
181
182
	}
	
183
	return ENDPOINT_RWSTREAM_NoError;
184
185
186
187
}

uint8_t Endpoint_Write_Stream_LE(const void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
188
                                 , StreamCallbackPtr_t Callback
189
190
191
192
193
194
195
196
197
#endif
								 )
{
	uint8_t* DataStream   = (uint8_t*)Buffer;
	uint8_t  ErrorCode;
	
	if ((ErrorCode = Endpoint_WaitUntilReady()))
	  return ErrorCode;

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
	#if defined(FAST_STREAM_TRANSFERS)
	uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);

	if (Length >= 8)
	{
		Length -= BytesRemToAlignment;

		switch (BytesRemToAlignment)
		{
			default:
				do
				{
					if (!(Endpoint_IsReadWriteAllowed()))
					{
						Endpoint_ClearIN();

						#if !defined(NO_STREAM_CALLBACKS)
						if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
						  return ENDPOINT_RWSTREAM_CallbackAborted;
						#endif

						if ((ErrorCode = Endpoint_WaitUntilReady()))
						  return ErrorCode;
					}

					Length -= 8;
					
					Endpoint_Write_Byte(*(DataStream++));
			case 7: Endpoint_Write_Byte(*(DataStream++));
			case 6: Endpoint_Write_Byte(*(DataStream++));
			case 5: Endpoint_Write_Byte(*(DataStream++));
			case 4: Endpoint_Write_Byte(*(DataStream++));
			case 3: Endpoint_Write_Byte(*(DataStream++));
			case 2: Endpoint_Write_Byte(*(DataStream++));
			case 1:	Endpoint_Write_Byte(*(DataStream++));
				} while (Length >= 8);	
		}
	}
	#endif

238
	while (Length)
239
	{
240
		if (!(Endpoint_IsReadWriteAllowed()))
241
		{
242
			Endpoint_ClearIN();
243
244
245
			
			#if !defined(NO_STREAM_CALLBACKS)
			if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
246
			  return ENDPOINT_RWSTREAM_CallbackAborted;
247
248
249
250
251
			#endif

			if ((ErrorCode = Endpoint_WaitUntilReady()))
			  return ErrorCode;
		}
252
253
254
		else
		{
			Endpoint_Write_Byte(*(DataStream++));
255
			Length--;
256
		}
257
	}
258

259
	return ENDPOINT_RWSTREAM_NoError;
260
261
262
263
}

uint8_t Endpoint_Write_Stream_BE(const void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
264
                                 , StreamCallbackPtr_t Callback
265
266
267
268
269
270
271
272
273
#endif
								 )
{
	uint8_t* DataStream = (uint8_t*)(Buffer + Length - 1);
	uint8_t  ErrorCode;
	
	if ((ErrorCode = Endpoint_WaitUntilReady()))
	  return ErrorCode;

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
	#if defined(FAST_STREAM_TRANSFERS)
	uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);

	if (Length >= 8)
	{
		Length -= BytesRemToAlignment;

		switch (BytesRemToAlignment)
		{
			default:
				do
				{
					if (!(Endpoint_IsReadWriteAllowed()))
					{
						Endpoint_ClearIN();

						#if !defined(NO_STREAM_CALLBACKS)
						if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
						  return ENDPOINT_RWSTREAM_CallbackAborted;
						#endif

						if ((ErrorCode = Endpoint_WaitUntilReady()))
						  return ErrorCode;
					}

					Length -= 8;
					
					Endpoint_Write_Byte(*(DataStream--));
			case 7: Endpoint_Write_Byte(*(DataStream--));
			case 6: Endpoint_Write_Byte(*(DataStream--));
			case 5: Endpoint_Write_Byte(*(DataStream--));
			case 4: Endpoint_Write_Byte(*(DataStream--));
			case 3: Endpoint_Write_Byte(*(DataStream--));
			case 2: Endpoint_Write_Byte(*(DataStream--));
			case 1:	Endpoint_Write_Byte(*(DataStream--));
				} while (Length >= 8);	
		}
	}
	#endif

314
	while (Length)
315
	{
316
		if (!(Endpoint_IsReadWriteAllowed()))
317
		{
318
			Endpoint_ClearIN();
319
320
321

			#if !defined(NO_STREAM_CALLBACKS)
			if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
322
			  return ENDPOINT_RWSTREAM_CallbackAborted;
323
324
325
326
327
			#endif

			if ((ErrorCode = Endpoint_WaitUntilReady()))
			  return ErrorCode;
		}
328
329
330
		else
		{
			Endpoint_Write_Byte(*(DataStream--));
331
			Length--;
332
		}
333
	}
334

335
	return ENDPOINT_RWSTREAM_NoError;
336
337
338
339
}

uint8_t Endpoint_Read_Stream_LE(void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
340
                                 , StreamCallbackPtr_t Callback
341
342
343
344
345
346
347
348
349
#endif
								 )
{
	uint8_t* DataStream = (uint8_t*)Buffer;
	uint8_t  ErrorCode;
	
	if ((ErrorCode = Endpoint_WaitUntilReady()))
	  return ErrorCode;

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
	#if defined(FAST_STREAM_TRANSFERS)
	uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);

	if (Length >= 8)
	{
		Length -= BytesRemToAlignment;

		switch (BytesRemToAlignment)
		{
			default:
				do
				{
					if (!(Endpoint_IsReadWriteAllowed()))
					{
						Endpoint_ClearOUT();

						#if !defined(NO_STREAM_CALLBACKS)
						if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
						  return ENDPOINT_RWSTREAM_CallbackAborted;
						#endif

						if ((ErrorCode = Endpoint_WaitUntilReady()))
						  return ErrorCode;
					}

					Length -= 8;
					
					*(DataStream++) = Endpoint_Read_Byte();
			case 7: *(DataStream++) = Endpoint_Read_Byte();
			case 6: *(DataStream++) = Endpoint_Read_Byte();
			case 5: *(DataStream++) = Endpoint_Read_Byte();
			case 4: *(DataStream++) = Endpoint_Read_Byte();
			case 3: *(DataStream++) = Endpoint_Read_Byte();
			case 2: *(DataStream++) = Endpoint_Read_Byte();
			case 1:	*(DataStream++) = Endpoint_Read_Byte();
				} while (Length >= 8);	
		}
	}
	#endif

390
	while (Length)
391
	{
392
		if (!(Endpoint_IsReadWriteAllowed()))
393
		{
394
			Endpoint_ClearOUT();
395
396
397

			#if !defined(NO_STREAM_CALLBACKS)
			if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
398
			  return ENDPOINT_RWSTREAM_CallbackAborted;
399
400
401
402
403
			#endif

			if ((ErrorCode = Endpoint_WaitUntilReady()))
			  return ErrorCode;
		}
404
405
406
		else
		{
			*(DataStream++) = Endpoint_Read_Byte();
407
			Length--;
408
		}
409
	}
410

411
	return ENDPOINT_RWSTREAM_NoError;
412
413
414
415
}

uint8_t Endpoint_Read_Stream_BE(void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
416
                                 , StreamCallbackPtr_t Callback
417
418
419
420
421
422
423
424
425
#endif
								 )
{
	uint8_t* DataStream = (uint8_t*)(Buffer + Length - 1);
	uint8_t  ErrorCode;
	
	if ((ErrorCode = Endpoint_WaitUntilReady()))
	  return ErrorCode;

426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
	#if defined(FAST_STREAM_TRANSFERS)
	uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);

	if (Length >= 8)
	{
		Length -= BytesRemToAlignment;

		switch (BytesRemToAlignment)
		{
			default:
				do
				{
					if (!(Endpoint_IsReadWriteAllowed()))
					{
						Endpoint_ClearOUT();

						#if !defined(NO_STREAM_CALLBACKS)
						if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
						  return ENDPOINT_RWSTREAM_CallbackAborted;
						#endif

						if ((ErrorCode = Endpoint_WaitUntilReady()))
						  return ErrorCode;
					}

					Length -= 8;
					
					*(DataStream--) = Endpoint_Read_Byte();
			case 7: *(DataStream--) = Endpoint_Read_Byte();
			case 6: *(DataStream--) = Endpoint_Read_Byte();
			case 5: *(DataStream--) = Endpoint_Read_Byte();
			case 4: *(DataStream--) = Endpoint_Read_Byte();
			case 3: *(DataStream--) = Endpoint_Read_Byte();
			case 2: *(DataStream--) = Endpoint_Read_Byte();
			case 1:	*(DataStream--) = Endpoint_Read_Byte();
				} while (Length >= 8);	
		}
	}
	#endif

466
	while (Length)
467
	{
468
		if (!(Endpoint_IsReadWriteAllowed()))
469
		{
470
			Endpoint_ClearOUT();
471
472
473

			#if !defined(NO_STREAM_CALLBACKS)
			if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
474
			  return ENDPOINT_RWSTREAM_CallbackAborted;
475
476
477
478
479
			#endif

			if ((ErrorCode = Endpoint_WaitUntilReady()))
			  return ErrorCode;
		}
480
481
482
		else
		{
			*(DataStream--) = Endpoint_Read_Byte();
483
			Length--;
484
		}
485
	}
486

487
	return ENDPOINT_RWSTREAM_NoError;
488
}
489
#endif
490
491
492

uint8_t Endpoint_Write_Control_Stream_LE(const void* Buffer, uint16_t Length)
{
493
	uint8_t* DataStream     = (uint8_t*)Buffer;
494
	bool     LastPacketFull = false;
495
496
497
	
	if (Length > USB_ControlRequest.wLength)
	  Length = USB_ControlRequest.wLength;
498
	
499
	while (Length && !(Endpoint_IsOUTReceived()))
500
	{
501
		while (!(Endpoint_IsINReady()));
502
503
504
505
506
507
508
		
		while (Length && (Endpoint_BytesInEndpoint() < USB_ControlEndpointSize))
		{
			Endpoint_Write_Byte(*(DataStream++));
			Length--;
		}
		
509
		LastPacketFull = (Endpoint_BytesInEndpoint() == USB_ControlEndpointSize);
510
		Endpoint_ClearIN();
511
512
	}
	
513
	if (Endpoint_IsOUTReceived())
514
	  return ENDPOINT_RWCSTREAM_HostAborted;
515
	
516
	if (LastPacketFull)
517
	{
518
		while (!(Endpoint_IsINReady()));
519
		Endpoint_ClearIN();
520
521
	}
	
522
	while (!(Endpoint_IsOUTReceived()));
523

524
	return ENDPOINT_RWCSTREAM_NoError;
525
526
527
528
}

uint8_t Endpoint_Write_Control_Stream_BE(const void* Buffer, uint16_t Length)
{
529
530
	uint8_t* DataStream     = (uint8_t*)(Buffer + Length - 1);
	bool     LastPacketFull = false;
531
	
532
533
534
	if (Length > USB_ControlRequest.wLength)
	  Length = USB_ControlRequest.wLength;

535
	while (Length && !(Endpoint_IsOUTReceived()))
536
	{
537
		if (Endpoint_IsINReady())
538
		{
539
540
541
542
543
544
545
546
			while (Length && (Endpoint_BytesInEndpoint() < USB_ControlEndpointSize))
			{
				Endpoint_Write_Byte(*(DataStream--));
				Length--;
			}
			
			LastPacketFull = (Endpoint_BytesInEndpoint() == USB_ControlEndpointSize);
			Endpoint_ClearIN();
547
548
549
		}
	}
	
550
	if (Endpoint_IsOUTReceived())
551
	  return ENDPOINT_RWCSTREAM_HostAborted;
552
	
553
	if (LastPacketFull)
554
	{
555
		while (!(Endpoint_IsINReady()));
556
		Endpoint_ClearIN();
557
558
	}
	
559
	while (!(Endpoint_IsOUTReceived()));
560

561
	return ENDPOINT_RWCSTREAM_NoError;
562
563
564
565
566
567
568
569
}

uint8_t Endpoint_Read_Control_Stream_LE(void* Buffer, uint16_t Length)
{
	uint8_t* DataStream = (uint8_t*)Buffer;
	
	while (Length)
	{
570
		if (Endpoint_IsOUTReceived())
571
		{
572
573
574
575
576
577
578
			while (Length && Endpoint_BytesInEndpoint())
			{
				*(DataStream++) = Endpoint_Read_Byte();
				Length--;
			}
			
			Endpoint_ClearOUT();
579
580
581
		}
	}
	
582
	while (!(Endpoint_IsINReady()));
583
	
584
	return ENDPOINT_RWCSTREAM_NoError;
585
586
587
588
589
590
591
592
}

uint8_t Endpoint_Read_Control_Stream_BE(void* Buffer, uint16_t Length)
{
	uint8_t* DataStream = (uint8_t*)(Buffer + Length - 1);
	
	while (Length)
	{
593
		if (Endpoint_IsOUTReceived())
594
		{
595
596
597
598
599
600
601
			while (Length && Endpoint_BytesInEndpoint())
			{
				*(DataStream--) = Endpoint_Read_Byte();
				Length--;
			}
			
			Endpoint_ClearOUT();
602
603
604
		}
	}
	
605
	while (!(Endpoint_IsINReady()));
606

607
	return ENDPOINT_RWCSTREAM_NoError;
608
609
610
}

#endif