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Fix void pointer arithmetic in the low level RNDIS demo.
[pub/USBasp.git] / LUFA / Drivers / USB / Core / AVR8 / EndpointStream_AVR8.h
1 /*
2 LUFA Library
3 Copyright (C) Dean Camera, 2015.
4
5 dean [at] fourwalledcubicle [dot] com
6 www.lufa-lib.org
7 */
8
9 /*
10 Copyright 2015 Dean Camera (dean [at] fourwalledcubicle [dot] com)
11
12 Permission to use, copy, modify, distribute, and sell this
13 software and its documentation for any purpose is hereby granted
14 without fee, provided that the above copyright notice appear in
15 all copies and that both that the copyright notice and this
16 permission notice and warranty disclaimer appear in supporting
17 documentation, and that the name of the author not be used in
18 advertising or publicity pertaining to distribution of the
19 software without specific, written prior permission.
20
21 The author disclaims all warranties with regard to this
22 software, including all implied warranties of merchantability
23 and fitness. In no event shall the author be liable for any
24 special, indirect or consequential damages or any damages
25 whatsoever resulting from loss of use, data or profits, whether
26 in an action of contract, negligence or other tortious action,
27 arising out of or in connection with the use or performance of
28 this software.
29 */
30
31 /** \file
32 * \brief Endpoint data stream transmission and reception management for the AVR8 microcontrollers.
33 * \copydetails Group_EndpointStreamRW_AVR8
34 *
35 * \note This file should not be included directly. It is automatically included as needed by the USB driver
36 * dispatch header located in LUFA/Drivers/USB/USB.h.
37 */
38
39 /** \ingroup Group_EndpointStreamRW
40 * \defgroup Group_EndpointStreamRW_AVR8 Read/Write of Multi-Byte Streams (AVR8)
41 * \brief Endpoint data stream transmission and reception management for the Atmel AVR8 architecture.
42 *
43 * Functions, macros, variables, enums and types related to data reading and writing of data streams from
44 * and to endpoints.
45 *
46 * @{
47 */
48
49 #ifndef __ENDPOINT_STREAM_AVR8_H__
50 #define __ENDPOINT_STREAM_AVR8_H__
51
52 /* Includes: */
53 #include "../../../../Common/Common.h"
54 #include "../USBMode.h"
55 #include "../USBTask.h"
56
57 /* Enable C linkage for C++ Compilers: */
58 #if defined(__cplusplus)
59 extern "C" {
60 #endif
61
62 /* Preprocessor Checks: */
63 #if !defined(__INCLUDE_FROM_USB_DRIVER)
64 #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
65 #endif
66
67 /* Public Interface - May be used in end-application: */
68 /* Function Prototypes: */
69 /** \name Stream functions for null data */
70 //@{
71
72 /** Reads and discards the given number of bytes from the currently selected endpoint's bank,
73 * discarding fully read packets from the host as needed. The last packet is not automatically
74 * discarded once the remaining bytes has been read; the user is responsible for manually
75 * discarding the last packet from the host via the \ref Endpoint_ClearOUT() macro.
76 *
77 * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once,
78 * failing or succeeding as a single unit. If the BytesProcessed parameter points to a valid
79 * storage location, the transfer will instead be performed as a series of chunks. Each time
80 * the endpoint bank becomes empty while there is still data to process (and after the current
81 * packet has been acknowledged) the BytesProcessed location will be updated with the total number
82 * of bytes processed in the stream, and the function will exit with an error code of
83 * \ref ENDPOINT_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed
84 * in the user code - to continue the transfer, call the function again with identical parameters
85 * and it will resume until the BytesProcessed value reaches the total transfer length.
86 *
87 * <b>Single Stream Transfer Example:</b>
88 * \code
89 * uint8_t ErrorCode;
90 *
91 * if ((ErrorCode = Endpoint_Discard_Stream(512, NULL)) != ENDPOINT_RWSTREAM_NoError)
92 * {
93 * // Stream failed to complete - check ErrorCode here
94 * }
95 * \endcode
96 *
97 * <b>Partial Stream Transfers Example:</b>
98 * \code
99 * uint8_t ErrorCode;
100 * uint16_t BytesProcessed;
101 *
102 * BytesProcessed = 0;
103 * while ((ErrorCode = Endpoint_Discard_Stream(512, &BytesProcessed)) == ENDPOINT_RWSTREAM_IncompleteTransfer)
104 * {
105 * // Stream not yet complete - do other actions here, abort if required
106 * }
107 *
108 * if (ErrorCode != ENDPOINT_RWSTREAM_NoError)
109 * {
110 * // Stream failed to complete - check ErrorCode here
111 * }
112 * \endcode
113 *
114 * \note This routine should not be used on CONTROL type endpoints.
115 *
116 * \param[in] Length Number of bytes to discard via the currently selected endpoint.
117 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
118 * transaction should be updated, \c NULL if the entire stream should be read at once.
119 *
120 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
121 */
122 uint8_t Endpoint_Discard_Stream(uint16_t Length,
123 uint16_t* const BytesProcessed);
124
125 /** Writes a given number of zeroed bytes to the currently selected endpoint's bank, sending
126 * full packets to the host as needed. The last packet is not automatically sent once the
127 * remaining bytes have been written; the user is responsible for manually sending the last
128 * packet to the host via the \ref Endpoint_ClearIN() macro.
129 *
130 * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once,
131 * failing or succeeding as a single unit. If the BytesProcessed parameter points to a valid
132 * storage location, the transfer will instead be performed as a series of chunks. Each time
133 * the endpoint bank becomes full while there is still data to process (and after the current
134 * packet transmission has been initiated) the BytesProcessed location will be updated with the
135 * total number of bytes processed in the stream, and the function will exit with an error code of
136 * \ref ENDPOINT_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed
137 * in the user code - to continue the transfer, call the function again with identical parameters
138 * and it will resume until the BytesProcessed value reaches the total transfer length.
139 *
140 * <b>Single Stream Transfer Example:</b>
141 * \code
142 * uint8_t ErrorCode;
143 *
144 * if ((ErrorCode = Endpoint_Null_Stream(512, NULL)) != ENDPOINT_RWSTREAM_NoError)
145 * {
146 * // Stream failed to complete - check ErrorCode here
147 * }
148 * \endcode
149 *
150 * <b>Partial Stream Transfers Example:</b>
151 * \code
152 * uint8_t ErrorCode;
153 * uint16_t BytesProcessed;
154 *
155 * BytesProcessed = 0;
156 * while ((ErrorCode = Endpoint_Null_Stream(512, &BytesProcessed)) == ENDPOINT_RWSTREAM_IncompleteTransfer)
157 * {
158 * // Stream not yet complete - do other actions here, abort if required
159 * }
160 *
161 * if (ErrorCode != ENDPOINT_RWSTREAM_NoError)
162 * {
163 * // Stream failed to complete - check ErrorCode here
164 * }
165 * \endcode
166 *
167 * \note This routine should not be used on CONTROL type endpoints.
168 *
169 * \param[in] Length Number of zero bytes to send via the currently selected endpoint.
170 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
171 * transaction should be updated, \c NULL if the entire stream should be read at once.
172 *
173 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
174 */
175 uint8_t Endpoint_Null_Stream(uint16_t Length,
176 uint16_t* const BytesProcessed);
177
178 //@}
179
180 /** \name Stream functions for RAM source/destination data */
181 //@{
182
183 /** Writes the given number of bytes to the endpoint from the given buffer in little endian,
184 * sending full packets to the host as needed. The last packet filled is not automatically sent;
185 * the user is responsible for manually sending the last written packet to the host via the
186 * \ref Endpoint_ClearIN() macro.
187 *
188 * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once,
189 * failing or succeeding as a single unit. If the BytesProcessed parameter points to a valid
190 * storage location, the transfer will instead be performed as a series of chunks. Each time
191 * the endpoint bank becomes full while there is still data to process (and after the current
192 * packet transmission has been initiated) the BytesProcessed location will be updated with the
193 * total number of bytes processed in the stream, and the function will exit with an error code of
194 * \ref ENDPOINT_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed
195 * in the user code - to continue the transfer, call the function again with identical parameters
196 * and it will resume until the BytesProcessed value reaches the total transfer length.
197 *
198 * <b>Single Stream Transfer Example:</b>
199 * \code
200 * uint8_t DataStream[512];
201 * uint8_t ErrorCode;
202 *
203 * if ((ErrorCode = Endpoint_Write_Stream_LE(DataStream, sizeof(DataStream),
204 * NULL)) != ENDPOINT_RWSTREAM_NoError)
205 * {
206 * // Stream failed to complete - check ErrorCode here
207 * }
208 * \endcode
209 *
210 * <b>Partial Stream Transfers Example:</b>
211 * \code
212 * uint8_t DataStream[512];
213 * uint8_t ErrorCode;
214 * uint16_t BytesProcessed;
215 *
216 * BytesProcessed = 0;
217 * while ((ErrorCode = Endpoint_Write_Stream_LE(DataStream, sizeof(DataStream),
218 * &BytesProcessed)) == ENDPOINT_RWSTREAM_IncompleteTransfer)
219 * {
220 * // Stream not yet complete - do other actions here, abort if required
221 * }
222 *
223 * if (ErrorCode != ENDPOINT_RWSTREAM_NoError)
224 * {
225 * // Stream failed to complete - check ErrorCode here
226 * }
227 * \endcode
228 *
229 * \note This routine should not be used on CONTROL type endpoints.
230 *
231 * \param[in] Buffer Pointer to the source data buffer to read from.
232 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
233 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
234 * transaction should be updated, \c NULL if the entire stream should be written at once.
235 *
236 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
237 */
238 uint8_t Endpoint_Write_Stream_LE(const void* const Buffer,
239 uint16_t Length,
240 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
241
242 /** Writes the given number of bytes to the endpoint from the given buffer in big endian,
243 * sending full packets to the host as needed. The last packet filled is not automatically sent;
244 * the user is responsible for manually sending the last written packet to the host via the
245 * \ref Endpoint_ClearIN() macro.
246 *
247 * \note This routine should not be used on CONTROL type endpoints.
248 *
249 * \param[in] Buffer Pointer to the source data buffer to read from.
250 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
251 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
252 * transaction should be updated, \c NULL if the entire stream should be written at once.
253 *
254 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
255 */
256 uint8_t Endpoint_Write_Stream_BE(const void* const Buffer,
257 uint16_t Length,
258 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
259
260 /** Reads the given number of bytes from the endpoint from the given buffer in little endian,
261 * discarding fully read packets from the host as needed. The last packet is not automatically
262 * discarded once the remaining bytes has been read; the user is responsible for manually
263 * discarding the last packet from the host via the \ref Endpoint_ClearOUT() macro.
264 *
265 * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once,
266 * failing or succeeding as a single unit. If the BytesProcessed parameter points to a valid
267 * storage location, the transfer will instead be performed as a series of chunks. Each time
268 * the endpoint bank becomes empty while there is still data to process (and after the current
269 * packet has been acknowledged) the BytesProcessed location will be updated with the total number
270 * of bytes processed in the stream, and the function will exit with an error code of
271 * \ref ENDPOINT_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed
272 * in the user code - to continue the transfer, call the function again with identical parameters
273 * and it will resume until the BytesProcessed value reaches the total transfer length.
274 *
275 * <b>Single Stream Transfer Example:</b>
276 * \code
277 * uint8_t DataStream[512];
278 * uint8_t ErrorCode;
279 *
280 * if ((ErrorCode = Endpoint_Read_Stream_LE(DataStream, sizeof(DataStream),
281 * NULL)) != ENDPOINT_RWSTREAM_NoError)
282 * {
283 * // Stream failed to complete - check ErrorCode here
284 * }
285 * \endcode
286 *
287 * <b>Partial Stream Transfers Example:</b>
288 * \code
289 * uint8_t DataStream[512];
290 * uint8_t ErrorCode;
291 * uint16_t BytesProcessed;
292 *
293 * BytesProcessed = 0;
294 * while ((ErrorCode = Endpoint_Read_Stream_LE(DataStream, sizeof(DataStream),
295 * &BytesProcessed)) == ENDPOINT_RWSTREAM_IncompleteTransfer)
296 * {
297 * // Stream not yet complete - do other actions here, abort if required
298 * }
299 *
300 * if (ErrorCode != ENDPOINT_RWSTREAM_NoError)
301 * {
302 * // Stream failed to complete - check ErrorCode here
303 * }
304 * \endcode
305 *
306 * \note This routine should not be used on CONTROL type endpoints.
307 *
308 * \param[out] Buffer Pointer to the destination data buffer to write to.
309 * \param[in] Length Number of bytes to send via the currently selected endpoint.
310 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
311 * transaction should be updated, \c NULL if the entire stream should be read at once.
312 *
313 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
314 */
315 uint8_t Endpoint_Read_Stream_LE(void* const Buffer,
316 uint16_t Length,
317 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
318
319 /** Reads the given number of bytes from the endpoint from the given buffer in big endian,
320 * discarding fully read packets from the host as needed. The last packet is not automatically
321 * discarded once the remaining bytes has been read; the user is responsible for manually
322 * discarding the last packet from the host via the \ref Endpoint_ClearOUT() macro.
323 *
324 * \note This routine should not be used on CONTROL type endpoints.
325 *
326 * \param[out] Buffer Pointer to the destination data buffer to write to.
327 * \param[in] Length Number of bytes to send via the currently selected endpoint.
328 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
329 * transaction should be updated, \c NULL if the entire stream should be read at once.
330 *
331 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
332 */
333 uint8_t Endpoint_Read_Stream_BE(void* const Buffer,
334 uint16_t Length,
335 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
336
337 /** Writes the given number of bytes to the CONTROL type endpoint from the given buffer in little endian,
338 * sending full packets to the host as needed. The host OUT acknowledgement is not automatically cleared
339 * in both failure and success states; the user is responsible for manually clearing the status OUT packet
340 * to finalize the transfer's status stage via the \ref Endpoint_ClearOUT() macro.
341 *
342 * \note This function automatically sends the last packet in the data stage of the transaction; when the
343 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
344 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
345 * \n\n
346 *
347 * \note This routine should only be used on CONTROL type endpoints.
348 *
349 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
350 * together; i.e. the entire stream data must be read or written at the one time.
351 *
352 * \param[in] Buffer Pointer to the source data buffer to read from.
353 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
354 *
355 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
356 */
357 uint8_t Endpoint_Write_Control_Stream_LE(const void* const Buffer,
358 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
359
360 /** Writes the given number of bytes to the CONTROL type endpoint from the given buffer in big endian,
361 * sending full packets to the host as needed. The host OUT acknowledgement is not automatically cleared
362 * in both failure and success states; the user is responsible for manually clearing the status OUT packet
363 * to finalize the transfer's status stage via the \ref Endpoint_ClearOUT() macro.
364 *
365 * \note This function automatically sends the last packet in the data stage of the transaction; when the
366 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
367 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
368 * \n\n
369 *
370 * \note This routine should only be used on CONTROL type endpoints.
371 *
372 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
373 * together; i.e. the entire stream data must be read or written at the one time.
374 *
375 * \param[in] Buffer Pointer to the source data buffer to read from.
376 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
377 *
378 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
379 */
380 uint8_t Endpoint_Write_Control_Stream_BE(const void* const Buffer,
381 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
382
383 /** Reads the given number of bytes from the CONTROL endpoint from the given buffer in little endian,
384 * discarding fully read packets from the host as needed. The device IN acknowledgement is not
385 * automatically sent after success or failure states; the user is responsible for manually sending the
386 * status IN packet to finalize the transfer's status stage via the \ref Endpoint_ClearIN() macro.
387 *
388 * \note This function automatically sends the last packet in the data stage of the transaction; when the
389 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
390 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
391 * \n\n
392 *
393 * \note This routine should only be used on CONTROL type endpoints.
394 *
395 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
396 * together; i.e. the entire stream data must be read or written at the one time.
397 *
398 * \param[out] Buffer Pointer to the destination data buffer to write to.
399 * \param[in] Length Number of bytes to send via the currently selected endpoint.
400 *
401 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
402 */
403 uint8_t Endpoint_Read_Control_Stream_LE(void* const Buffer,
404 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
405
406 /** Reads the given number of bytes from the CONTROL endpoint from the given buffer in big endian,
407 * discarding fully read packets from the host as needed. The device IN acknowledgement is not
408 * automatically sent after success or failure states; the user is responsible for manually sending the
409 * status IN packet to finalize the transfer's status stage via the \ref Endpoint_ClearIN() macro.
410 *
411 * \note This function automatically sends the last packet in the data stage of the transaction; when the
412 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
413 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
414 * \n\n
415 *
416 * \note This routine should only be used on CONTROL type endpoints.
417 *
418 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
419 * together; i.e. the entire stream data must be read or written at the one time.
420 *
421 * \param[out] Buffer Pointer to the destination data buffer to write to.
422 * \param[in] Length Number of bytes to send via the currently selected endpoint.
423 *
424 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
425 */
426 uint8_t Endpoint_Read_Control_Stream_BE(void* const Buffer,
427 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
428 //@}
429
430 /** \name Stream functions for EEPROM source/destination data */
431 //@{
432
433 /** EEPROM buffer source version of \ref Endpoint_Write_Stream_LE().
434 *
435 * \param[in] Buffer Pointer to the source data buffer to read from.
436 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
437 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
438 * transaction should be updated, \c NULL if the entire stream should be written at once.
439 *
440 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
441 */
442 uint8_t Endpoint_Write_EStream_LE(const void* const Buffer,
443 uint16_t Length,
444 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
445
446 /** EEPROM buffer source version of \ref Endpoint_Write_Stream_BE().
447 *
448 * \param[in] Buffer Pointer to the source data buffer to read from.
449 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
450 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
451 * transaction should be updated, \c NULL if the entire stream should be written at once.
452 *
453 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
454 */
455 uint8_t Endpoint_Write_EStream_BE(const void* const Buffer,
456 uint16_t Length,
457 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
458
459 /** EEPROM buffer destination version of \ref Endpoint_Read_Stream_LE().
460 *
461 * \param[out] Buffer Pointer to the destination data buffer to write to, located in EEPROM memory space.
462 * \param[in] Length Number of bytes to send via the currently selected endpoint.
463 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
464 * transaction should be updated, \c NULL if the entire stream should be read at once.
465 *
466 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
467 */
468 uint8_t Endpoint_Read_EStream_LE(void* const Buffer,
469 uint16_t Length,
470 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
471
472 /** EEPROM buffer destination version of \ref Endpoint_Read_Stream_BE().
473 *
474 * \param[out] Buffer Pointer to the destination data buffer to write to, located in EEPROM memory space.
475 * \param[in] Length Number of bytes to send via the currently selected endpoint.
476 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
477 * transaction should be updated, \c NULL if the entire stream should be read at once.
478 *
479 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
480 */
481 uint8_t Endpoint_Read_EStream_BE(void* const Buffer,
482 uint16_t Length,
483 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
484
485 /** EEPROM buffer source version of Endpoint_Write_Control_Stream_LE.
486 *
487 * \note This function automatically sends the last packet in the data stage of the transaction; when the
488 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
489 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
490 * \n\n
491 *
492 * \note This routine should only be used on CONTROL type endpoints.
493 * \n\n
494 *
495 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
496 * together; i.e. the entire stream data must be read or written at the one time.
497 *
498 * \param[in] Buffer Pointer to the source data buffer to read from.
499 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
500 *
501 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
502 */
503 uint8_t Endpoint_Write_Control_EStream_LE(const void* const Buffer,
504 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
505
506 /** EEPROM buffer source version of \ref Endpoint_Write_Control_Stream_BE().
507 *
508 * \note This function automatically sends the last packet in the data stage of the transaction; when the
509 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
510 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
511 * \n\n
512 *
513 * \note This routine should only be used on CONTROL type endpoints.
514 * \n\n
515 *
516 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
517 * together; i.e. the entire stream data must be read or written at the one time.
518 *
519 * \param[in] Buffer Pointer to the source data buffer to read from.
520 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
521 *
522 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
523 */
524 uint8_t Endpoint_Write_Control_EStream_BE(const void* const Buffer,
525 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
526
527 /** EEPROM buffer source version of \ref Endpoint_Read_Control_Stream_LE().
528 *
529 * \note This function automatically sends the last packet in the data stage of the transaction; when the
530 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
531 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
532 * \n\n
533 *
534 * \note This routine should only be used on CONTROL type endpoints.
535 * \n\n
536 *
537 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
538 * together; i.e. the entire stream data must be read or written at the one time.
539 *
540 * \param[out] Buffer Pointer to the destination data buffer to write to.
541 * \param[in] Length Number of bytes to send via the currently selected endpoint.
542 *
543 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
544 */
545 uint8_t Endpoint_Read_Control_EStream_LE(void* const Buffer,
546 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
547
548 /** EEPROM buffer source version of \ref Endpoint_Read_Control_Stream_BE().
549 *
550 * \note This function automatically sends the last packet in the data stage of the transaction; when the
551 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
552 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
553 * \n\n
554 *
555 * \note This routine should only be used on CONTROL type endpoints.
556 * \n\n
557 *
558 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
559 * together; i.e. the entire stream data must be read or written at the one time.
560 *
561 * \param[out] Buffer Pointer to the destination data buffer to write to.
562 * \param[in] Length Number of bytes to send via the currently selected endpoint.
563 *
564 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
565 */
566 uint8_t Endpoint_Read_Control_EStream_BE(void* const Buffer,
567 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
568 //@}
569
570 /** \name Stream functions for PROGMEM source/destination data */
571 //@{
572
573 /** FLASH buffer source version of \ref Endpoint_Write_Stream_LE().
574 *
575 * \pre The FLASH data must be located in the first 64KB of FLASH for this function to work correctly.
576 *
577 * \param[in] Buffer Pointer to the source data buffer to read from.
578 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
579 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
580 * transaction should be updated, \c NULL if the entire stream should be written at once.
581 *
582 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
583 */
584 uint8_t Endpoint_Write_PStream_LE(const void* const Buffer,
585 uint16_t Length,
586 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
587
588 /** FLASH buffer source version of \ref Endpoint_Write_Stream_BE().
589 *
590 * \pre The FLASH data must be located in the first 64KB of FLASH for this function to work correctly.
591 *
592 * \param[in] Buffer Pointer to the source data buffer to read from.
593 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
594 * \param[in] BytesProcessed Pointer to a location where the total number of bytes processed in the current
595 * transaction should be updated, \c NULL if the entire stream should be written at once.
596 *
597 * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
598 */
599 uint8_t Endpoint_Write_PStream_BE(const void* const Buffer,
600 uint16_t Length,
601 uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1);
602
603 /** FLASH buffer source version of \ref Endpoint_Write_Control_Stream_LE().
604 *
605 * \pre The FLASH data must be located in the first 64KB of FLASH for this function to work correctly.
606 *
607 * \note This function automatically sends the last packet in the data stage of the transaction; when the
608 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
609 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
610 * \n\n
611 *
612 * \note This routine should only be used on CONTROL type endpoints.
613 * \n\n
614 *
615 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
616 * together; i.e. the entire stream data must be read or written at the one time.
617 *
618 * \param[in] Buffer Pointer to the source data buffer to read from.
619 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
620 *
621 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
622 */
623 uint8_t Endpoint_Write_Control_PStream_LE(const void* const Buffer,
624 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
625
626 /** FLASH buffer source version of \ref Endpoint_Write_Control_Stream_BE().
627 *
628 * \pre The FLASH data must be located in the first 64KB of FLASH for this function to work correctly.
629 *
630 * \note This function automatically sends the last packet in the data stage of the transaction; when the
631 * function returns, the user is responsible for clearing the <b>status</b> stage of the transaction.
632 * Note that the status stage packet is sent or received in the opposite direction of the data flow.
633 * \n\n
634 *
635 * \note This routine should only be used on CONTROL type endpoints.
636 * \n\n
637 *
638 * \warning Unlike the standard stream read/write commands, the control stream commands cannot be chained
639 * together; i.e. the entire stream data must be read or written at the one time.
640 *
641 * \param[in] Buffer Pointer to the source data buffer to read from.
642 * \param[in] Length Number of bytes to read for the currently selected endpoint into the buffer.
643 *
644 * \return A value from the \ref Endpoint_ControlStream_RW_ErrorCodes_t enum.
645 */
646 uint8_t Endpoint_Write_Control_PStream_BE(const void* const Buffer,
647 uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
648 //@}
649
650 /* Disable C linkage for C++ Compilers: */
651 #if defined(__cplusplus)
652 }
653 #endif
654
655 #endif
656
657 /** @} */
658
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