c9b6255a
 dmohamed
ajout de la bibli...
|
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
|
/*
LUFA Library
Copyright (C) Dean Camera, 2017.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, 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 disclaims 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.
*/
#define __INCLUDE_FROM_USB_DRIVER
#include "USBMode.h"
#if defined(USB_CAN_BE_DEVICE)
#define __INCLUDE_FROM_DEVICESTDREQ_C
#include "DeviceStandardReq.h"
uint8_t USB_Device_ConfigurationNumber;
#if !defined(NO_DEVICE_SELF_POWER)
bool USB_Device_CurrentlySelfPowered;
#endif
#if !defined(NO_DEVICE_REMOTE_WAKEUP)
bool USB_Device_RemoteWakeupEnabled;
#endif
void USB_Device_ProcessControlRequest(void)
{
#if defined(ARCH_BIG_ENDIAN)
USB_ControlRequest.bmRequestType = Endpoint_Read_8();
USB_ControlRequest.bRequest = Endpoint_Read_8();
USB_ControlRequest.wValue = Endpoint_Read_16_LE();
USB_ControlRequest.wIndex = Endpoint_Read_16_LE();
USB_ControlRequest.wLength = Endpoint_Read_16_LE();
#else
uint8_t* RequestHeader = (uint8_t*)&USB_ControlRequest;
for (uint8_t RequestHeaderByte = 0; RequestHeaderByte < sizeof(USB_Request_Header_t); RequestHeaderByte++)
*(RequestHeader++) = Endpoint_Read_8();
#endif
EVENT_USB_Device_ControlRequest();
if (Endpoint_IsSETUPReceived())
{
uint8_t bmRequestType = USB_ControlRequest.bmRequestType;
switch (USB_ControlRequest.bRequest)
{
case REQ_GetStatus:
if ((bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE)) ||
(bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_ENDPOINT)))
{
USB_Device_GetStatus();
}
break;
case REQ_ClearFeature:
case REQ_SetFeature:
if ((bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE)) ||
(bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT)))
{
USB_Device_ClearSetFeature();
}
break;
case REQ_SetAddress:
if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE))
USB_Device_SetAddress();
break;
case REQ_GetDescriptor:
if ((bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE)) ||
(bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE)))
{
USB_Device_GetDescriptor();
}
break;
case REQ_GetConfiguration:
if (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE))
USB_Device_GetConfiguration();
break;
case REQ_SetConfiguration:
if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE))
USB_Device_SetConfiguration();
break;
default:
break;
}
}
if (Endpoint_IsSETUPReceived())
{
Endpoint_ClearSETUP();
Endpoint_StallTransaction();
}
}
static void USB_Device_SetAddress(void)
{
uint8_t DeviceAddress = (USB_ControlRequest.wValue & 0x7F);
USB_Device_SetDeviceAddress(DeviceAddress);
Endpoint_ClearSETUP();
Endpoint_ClearStatusStage();
while (!(Endpoint_IsINReady()));
USB_Device_EnableDeviceAddress(DeviceAddress);
USB_DeviceState = (DeviceAddress) ? DEVICE_STATE_Addressed : DEVICE_STATE_Default;
}
static void USB_Device_SetConfiguration(void)
{
#if defined(FIXED_NUM_CONFIGURATIONS)
if ((uint8_t)USB_ControlRequest.wValue > FIXED_NUM_CONFIGURATIONS)
return;
#else
USB_Descriptor_Device_t* DevDescriptorPtr;
#if defined(ARCH_HAS_MULTI_ADDRESS_SPACE)
#if defined(USE_FLASH_DESCRIPTORS)
#define MemoryAddressSpace MEMSPACE_FLASH
#elif defined(USE_EEPROM_DESCRIPTORS)
#define MemoryAddressSpace MEMSPACE_EEPROM
#elif defined(USE_RAM_DESCRIPTORS)
#define MemoryAddressSpace MEMSPACE_RAM
#else
uint8_t MemoryAddressSpace;
#endif
#endif
if (CALLBACK_USB_GetDescriptor((DTYPE_Device << 8), 0, (void*)&DevDescriptorPtr
#if defined(ARCH_HAS_MULTI_ADDRESS_SPACE) && \
!(defined(USE_FLASH_DESCRIPTORS) || defined(USE_EEPROM_DESCRIPTORS) || defined(USE_RAM_DESCRIPTORS))
, &MemoryAddressSpace
#endif
) == NO_DESCRIPTOR)
{
return;
}
#if defined(ARCH_HAS_MULTI_ADDRESS_SPACE)
if (MemoryAddressSpace == MEMSPACE_FLASH)
{
if (((uint8_t)USB_ControlRequest.wValue > pgm_read_byte(&DevDescriptorPtr->NumberOfConfigurations)))
return;
}
else if (MemoryAddressSpace == MEMSPACE_EEPROM)
{
if (((uint8_t)USB_ControlRequest.wValue > eeprom_read_byte(&DevDescriptorPtr->NumberOfConfigurations)))
return;
}
else
{
if ((uint8_t)USB_ControlRequest.wValue > DevDescriptorPtr->NumberOfConfigurations)
return;
}
#else
if ((uint8_t)USB_ControlRequest.wValue > DevDescriptorPtr->NumberOfConfigurations)
return;
#endif
#endif
Endpoint_ClearSETUP();
USB_Device_ConfigurationNumber = (uint8_t)USB_ControlRequest.wValue;
Endpoint_ClearStatusStage();
if (USB_Device_ConfigurationNumber)
USB_DeviceState = DEVICE_STATE_Configured;
else
USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
EVENT_USB_Device_ConfigurationChanged();
}
static void USB_Device_GetConfiguration(void)
{
Endpoint_ClearSETUP();
Endpoint_Write_8(USB_Device_ConfigurationNumber);
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
}
#if !defined(NO_INTERNAL_SERIAL) && (USE_INTERNAL_SERIAL != NO_DESCRIPTOR)
static void USB_Device_GetInternalSerialDescriptor(void)
{
struct
{
USB_Descriptor_Header_t Header;
uint16_t UnicodeString[INTERNAL_SERIAL_LENGTH_BITS / 4];
} SignatureDescriptor;
SignatureDescriptor.Header.Type = DTYPE_String;
SignatureDescriptor.Header.Size = USB_STRING_LEN(INTERNAL_SERIAL_LENGTH_BITS / 4);
USB_Device_GetSerialString(SignatureDescriptor.UnicodeString);
Endpoint_ClearSETUP();
Endpoint_Write_Control_Stream_LE(&SignatureDescriptor, sizeof(SignatureDescriptor));
Endpoint_ClearOUT();
}
#endif
static void USB_Device_GetDescriptor(void)
{
const void* DescriptorPointer;
uint16_t DescriptorSize;
#if defined(ARCH_HAS_MULTI_ADDRESS_SPACE) && \
!(defined(USE_FLASH_DESCRIPTORS) || defined(USE_EEPROM_DESCRIPTORS) || defined(USE_RAM_DESCRIPTORS))
uint8_t DescriptorAddressSpace;
#endif
#if !defined(NO_INTERNAL_SERIAL) && (USE_INTERNAL_SERIAL != NO_DESCRIPTOR)
if (USB_ControlRequest.wValue == ((DTYPE_String << 8) | USE_INTERNAL_SERIAL))
{
USB_Device_GetInternalSerialDescriptor();
return;
}
#endif
if ((DescriptorSize = CALLBACK_USB_GetDescriptor(USB_ControlRequest.wValue, USB_ControlRequest.wIndex,
&DescriptorPointer
#if defined(ARCH_HAS_MULTI_ADDRESS_SPACE) && \
!(defined(USE_FLASH_DESCRIPTORS) || defined(USE_EEPROM_DESCRIPTORS) || defined(USE_RAM_DESCRIPTORS))
, &DescriptorAddressSpace
#endif
)) == NO_DESCRIPTOR)
{
return;
}
Endpoint_ClearSETUP();
#if defined(USE_RAM_DESCRIPTORS) || !defined(ARCH_HAS_MULTI_ADDRESS_SPACE)
Endpoint_Write_Control_Stream_LE(DescriptorPointer, DescriptorSize);
#elif defined(USE_EEPROM_DESCRIPTORS)
Endpoint_Write_Control_EStream_LE(DescriptorPointer, DescriptorSize);
#elif defined(USE_FLASH_DESCRIPTORS)
Endpoint_Write_Control_PStream_LE(DescriptorPointer, DescriptorSize);
#else
if (DescriptorAddressSpace == MEMSPACE_FLASH)
Endpoint_Write_Control_PStream_LE(DescriptorPointer, DescriptorSize);
else if (DescriptorAddressSpace == MEMSPACE_EEPROM)
Endpoint_Write_Control_EStream_LE(DescriptorPointer, DescriptorSize);
else
Endpoint_Write_Control_Stream_LE(DescriptorPointer, DescriptorSize);
#endif
Endpoint_ClearOUT();
}
static void USB_Device_GetStatus(void)
{
uint8_t CurrentStatus = 0;
switch (USB_ControlRequest.bmRequestType)
{
case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE):
{
#if !defined(NO_DEVICE_SELF_POWER)
if (USB_Device_CurrentlySelfPowered)
CurrentStatus |= FEATURE_SELFPOWERED_ENABLED;
#endif
#if !defined(NO_DEVICE_REMOTE_WAKEUP)
if (USB_Device_RemoteWakeupEnabled)
CurrentStatus |= FEATURE_REMOTE_WAKEUP_ENABLED;
#endif
break;
}
case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_ENDPOINT):
{
#if !defined(CONTROL_ONLY_DEVICE)
uint8_t EndpointIndex = ((uint8_t)USB_ControlRequest.wIndex & ENDPOINT_EPNUM_MASK);
if (EndpointIndex >= ENDPOINT_TOTAL_ENDPOINTS)
return;
Endpoint_SelectEndpoint(EndpointIndex);
CurrentStatus = Endpoint_IsStalled();
Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
#endif
break;
}
default:
return;
}
Endpoint_ClearSETUP();
Endpoint_Write_16_LE(CurrentStatus);
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
}
static void USB_Device_ClearSetFeature(void)
{
switch (USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT)
{
#if !defined(NO_DEVICE_REMOTE_WAKEUP)
case REQREC_DEVICE:
{
if ((uint8_t)USB_ControlRequest.wValue == FEATURE_SEL_DeviceRemoteWakeup)
USB_Device_RemoteWakeupEnabled = (USB_ControlRequest.bRequest == REQ_SetFeature);
else
return;
break;
}
#endif
#if !defined(CONTROL_ONLY_DEVICE)
case REQREC_ENDPOINT:
{
if ((uint8_t)USB_ControlRequest.wValue == FEATURE_SEL_EndpointHalt)
{
uint8_t EndpointIndex = ((uint8_t)USB_ControlRequest.wIndex & ENDPOINT_EPNUM_MASK);
if (EndpointIndex == ENDPOINT_CONTROLEP || EndpointIndex >= ENDPOINT_TOTAL_ENDPOINTS)
return;
Endpoint_SelectEndpoint(EndpointIndex);
if (Endpoint_IsEnabled())
{
if (USB_ControlRequest.bRequest == REQ_SetFeature)
{
Endpoint_StallTransaction();
}
else
{
Endpoint_ClearStall();
Endpoint_ResetEndpoint(EndpointIndex);
Endpoint_ResetDataToggle();
}
}
}
break;
}
#endif
default:
return;
}
Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
Endpoint_ClearSETUP();
Endpoint_ClearStatusStage();
}
#endif
|