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Move and rename DevChaper9.c/.h and HostChapter9.c/.h to the HighLevel directory...
[pub/USBasp.git] / LUFA / Drivers / USB / HighLevel / StdDescriptors.h
1 /*
2 LUFA Library
3 Copyright (C) Dean Camera, 2010.
4
5 dean [at] fourwalledcubicle [dot] com
6 www.fourwalledcubicle.com
7 */
8
9 /*
10 Copyright 2010 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 disclaim 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 USB standard descriptor definitions.
33 *
34 * This file contains structures and macros for the easy creation of standard USB descriptors in USB device projects.
35 *
36 * \note This file should not be included directly. It is automatically included as needed by the USB driver
37 * dispatch header located in LUFA/Drivers/USB/USB.h.
38 */
39
40 /** \ingroup Group_USB
41 * @defgroup Group_Descriptors USB Descriptors
42 *
43 * Standard USB device descriptor defines and retrieval routines, for USB devices. This module contains
44 * structures and macros for the easy creation of standard USB descriptors in USB device projects.
45 *
46 * @{
47 */
48
49 #ifndef __USBDESCRIPTORS_H__
50 #define __USBDESCRIPTORS_H__
51
52 /* Includes: */
53 #include <avr/pgmspace.h>
54 #include <stdbool.h>
55 #include <stdint.h>
56 #include <stddef.h>
57
58 #include "../../../Common/Common.h"
59 #include "USBMode.h"
60 #include "Events.h"
61
62 #if defined(USB_CAN_BE_DEVICE)
63 #include "../LowLevel/Device.h"
64 #endif
65
66 /* Enable C linkage for C++ Compilers: */
67 #if defined(__cplusplus)
68 extern "C" {
69 #endif
70
71 /* Preprocessor Checks: */
72 #if !defined(__INCLUDE_FROM_USB_DRIVER)
73 #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
74 #endif
75
76 /* Public Interface - May be used in end-application: */
77 /* Macros: */
78 /** Indicates that a given descriptor does not exist in the device. This can be used inside descriptors
79 * for string descriptor indexes, or may be use as a return value for GetDescriptor when the specified
80 * descriptor does not exist.
81 */
82 #define NO_DESCRIPTOR 0
83
84 #if (!defined(NO_INTERNAL_SERIAL) && \
85 (defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1287__) || \
86 defined(__AVR_ATmega32U6__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) || \
87 defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega8U2__)))
88 /** String descriptor index for the device's unique serial number string descriptor within the device.
89 * This unique serial number is used by the host to associate resources to the device (such as drivers or COM port
90 * number allocations) to a device regardless of the port it is plugged in to on the host. Some USB AVRs contain
91 * a unique serial number internally, and setting the device descriptors serial number string index to this value
92 * will cause it to use the internal serial number.
93 *
94 * On unsupported devices, this will evaluate to NO_DESCRIPTOR and so will force the host to create a pseudo-serial
95 * number for the device.
96 */
97 #define USE_INTERNAL_SERIAL 0xDC
98 #else
99 #define USE_INTERNAL_SERIAL NO_DESCRIPTOR
100 #endif
101
102 /** Macro to calculate the power value for the configuration descriptor, from a given number of milliamps. */
103 #define USB_CONFIG_POWER_MA(mA) ((mA) >> 1)
104
105 /** Macro to calculate the Unicode length of a string with a given number of Unicode characters.
106 * Should be used in string descriptor's headers for giving the string descriptor's byte length.
107 */
108 #define USB_STRING_LEN(str) (sizeof(USB_Descriptor_Header_t) + ((str) << 1))
109
110 /** Macro to encode a given four digit floating point version number (e.g. 01.23) into Binary Coded
111 * Decimal format for descriptor fields requiring BCD encoding, such as the USB version number in the
112 * standard device descriptor.
113 */
114 #define VERSION_BCD(x) ((((VERSION_TENS(x) << 4) | VERSION_ONES(x)) << 8) | \
115 ((VERSION_TENTHS(x) << 4) | VERSION_HUNDREDTHS(x)))
116
117 /** String language ID for the English language. Should be used in \ref USB_Descriptor_String_t descriptors
118 * to indicate that the English language is supported by the device in its string descriptors.
119 */
120 #define LANGUAGE_ID_ENG 0x0409
121
122 /** Can be masked with an endpoint address for a \ref USB_Descriptor_Endpoint_t endpoint descriptor's
123 * EndpointAddress value to indicate to the host that the endpoint is of the IN direction (i.e, from
124 * device to host).
125 */
126 #define ENDPOINT_DESCRIPTOR_DIR_IN 0x80
127
128 /** Can be masked with an endpoint address for a \ref USB_Descriptor_Endpoint_t endpoint descriptor's
129 * EndpointAddress value to indicate to the host that the endpoint is of the OUT direction (i.e, from
130 * host to device).
131 */
132 #define ENDPOINT_DESCRIPTOR_DIR_OUT 0x00
133
134 /** Can be masked with other configuration descriptor attributes for a \ref USB_Descriptor_Configuration_Header_t
135 * descriptor's ConfigAttributes value to indicate that the specified configuration can draw its power
136 * from the host's VBUS line.
137 */
138 #define USB_CONFIG_ATTR_BUSPOWERED 0x80
139
140 /** Can be masked with other configuration descriptor attributes for a \ref USB_Descriptor_Configuration_Header_t
141 * descriptor's ConfigAttributes value to indicate that the specified configuration can draw its power
142 * from the device's own power source.
143 */
144 #define USB_CONFIG_ATTR_SELFPOWERED 0x40
145
146 /** Can be masked with other configuration descriptor attributes for a \ref USB_Descriptor_Configuration_Header_t
147 * descriptor's ConfigAttributes value to indicate that the specified configuration supports the
148 * remote wakeup feature of the USB standard, allowing a suspended USB device to wake up the host upon
149 * request.
150 */
151 #define USB_CONFIG_ATTR_REMOTEWAKEUP 0x20
152
153 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
154 * Attributes value to indicate that the specified endpoint is not synchronized.
155 *
156 * \see The USB specification for more details on the possible Endpoint attributes.
157 */
158 #define ENDPOINT_ATTR_NO_SYNC (0 << 2)
159
160 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
161 * Attributes value to indicate that the specified endpoint is asynchronous.
162 *
163 * \see The USB specification for more details on the possible Endpoint attributes.
164 */
165 #define ENDPOINT_ATTR_ASYNC (1 << 2)
166
167 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
168 * Attributes value to indicate that the specified endpoint is adaptive.
169 *
170 * \see The USB specification for more details on the possible Endpoint attributes.
171 */
172 #define ENDPOINT_ATTR_ADAPTIVE (2 << 2)
173
174 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
175 * Attributes value to indicate that the specified endpoint is synchronized.
176 *
177 * \see The USB specification for more details on the possible Endpoint attributes.
178 */
179 #define ENDPOINT_ATTR_SYNC (3 << 2)
180
181 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
182 * Attributes value to indicate that the specified endpoint is used for data transfers.
183 *
184 * \see The USB specification for more details on the possible Endpoint usage attributes.
185 */
186 #define ENDPOINT_USAGE_DATA (0 << 4)
187
188 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
189 * Attributes value to indicate that the specified endpoint is used for feedback.
190 *
191 * \see The USB specification for more details on the possible Endpoint usage attributes.
192 */
193 #define ENDPOINT_USAGE_FEEDBACK (1 << 4)
194
195 /** Can be masked with other endpoint descriptor attributes for a \ref USB_Descriptor_Endpoint_t descriptor's
196 * Attributes value to indicate that the specified endpoint is used for implicit feedback.
197 *
198 * \see The USB specification for more details on the possible Endpoint usage attributes.
199 */
200 #define ENDPOINT_USAGE_IMPLICIT_FEEDBACK (2 << 4)
201
202 /* Enums: */
203 /** Enum for the possible standard descriptor types, as given in each descriptor's header. */
204 enum USB_DescriptorTypes_t
205 {
206 DTYPE_Device = 0x01, /**< Indicates that the descriptor is a device descriptor. */
207 DTYPE_Configuration = 0x02, /**< Indicates that the descriptor is a configuration descriptor. */
208 DTYPE_String = 0x03, /**< Indicates that the descriptor is a string descriptor. */
209 DTYPE_Interface = 0x04, /**< Indicates that the descriptor is an interface descriptor. */
210 DTYPE_Endpoint = 0x05, /**< Indicates that the descriptor is an endpoint descriptor. */
211 DTYPE_DeviceQualifier = 0x06, /**< Indicates that the descriptor is a device qualifier descriptor. */
212 DTYPE_Other = 0x07, /**< Indicates that the descriptor is of other type. */
213 DTYPE_InterfacePower = 0x08, /**< Indicates that the descriptor is an interface power descriptor. */
214 DTYPE_InterfaceAssociation = 0x0B, /**< Indicates that the descriptor is an interface association descriptor. */
215 };
216
217 /* Type Defines: */
218 /** \brief Standard USB Descriptor Header (LUFA naming conventions).
219 *
220 * Type define for all descriptors' standard header, indicating the descriptor's length and type. This structure
221 * uses LUFA-specific element names to make each element's purpose clearer.
222 *
223 * \see \ref USB_StdDescriptor_Header_t for the version of this define with standard element names.
224 */
225 typedef struct
226 {
227 uint8_t Size; /**< Size of the descriptor, in bytes. */
228 uint8_t Type; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
229 * given by the specific class.
230 */
231 } USB_Descriptor_Header_t;
232
233 /** \brief Standard USB Descriptor Header (USB-IF naming conventions).
234 *
235 * Type define for all descriptors' standard header, indicating the descriptor's length and type. This structure
236 * uses the relevant standard's given element names to ensure compatibility with the standard.
237 *
238 * \see \ref USB_Descriptor_Header_t for the version of this define with non-standard LUFA specific element names.
239 */
240 typedef struct
241 {
242 uint8_t bLength; /**< Size of the descriptor, in bytes. */
243 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
244 * given by the specific class.
245 */
246 } USB_StdDescriptor_Header_t;
247
248 /** \brief Standard USB Device Descriptor (LUFA naming conventions).
249 *
250 * Type define for a standard Device Descriptor. This structure uses LUFA-specific element names to make each
251 * element's purpose clearer.
252 *
253 * \see \ref USB_StdDescriptor_Device_t for the version of this define with standard element names.
254 */
255 typedef struct
256 {
257 USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
258
259 uint16_t USBSpecification; /**< BCD of the supported USB specification. */
260 uint8_t Class; /**< USB device class. */
261 uint8_t SubClass; /**< USB device subclass. */
262 uint8_t Protocol; /**< USB device protocol. */
263
264 uint8_t Endpoint0Size; /**< Size of the control (address 0) endpoint's bank in bytes. */
265
266 uint16_t VendorID; /**< Vendor ID for the USB product. */
267 uint16_t ProductID; /**< Unique product ID for the USB product. */
268 uint16_t ReleaseNumber; /**< Product release (version) number. */
269
270 uint8_t ManufacturerStrIndex; /**< String index for the manufacturer's name. The
271 * host will request this string via a separate
272 * control request for the string descriptor.
273 *
274 * \note If no string supplied, use \ref NO_DESCRIPTOR.
275 */
276 uint8_t ProductStrIndex; /**< String index for the product name/details.
277 *
278 * \see ManufacturerStrIndex structure entry.
279 */
280 uint8_t SerialNumStrIndex; /**< String index for the product's globally unique hexadecimal
281 * serial number, in uppercase Unicode ASCII.
282 *
283 * \note On some AVR models, there is an embedded serial number
284 * in the chip which can be used for the device serial number.
285 * To use this serial number, set this to USE_INTERNAL_SERIAL.
286 * On unsupported devices, this will evaluate to 0 and will cause
287 * the host to generate a pseudo-unique value for the device upon
288 * insertion.
289 *
290 * \see ManufacturerStrIndex structure entry.
291 */
292 uint8_t NumberOfConfigurations; /**< Total number of configurations supported by
293 * the device.
294 */
295 } USB_Descriptor_Device_t;
296
297 /** \brief Standard USB Device Descriptor (USB-IF naming conventions).
298 *
299 * Type define for a standard Device Descriptor. This structure uses the relevant standard's given element names
300 * to ensure compatibility with the standard.
301 *
302 * \see \ref USB_Descriptor_Device_t for the version of this define with non-standard LUFA specific element names.
303 */
304 typedef struct
305 {
306 uint8_t bLength; /**< Size of the descriptor, in bytes. */
307 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
308 * given by the specific class.
309 */
310 uint16_t bcdUSB; /**< BCD of the supported USB specification. */
311 uint8_t bDeviceClass; /**< USB device class. */
312 uint8_t bDeviceSubClass; /**< USB device subclass. */
313 uint8_t bDeviceProtocol; /**< USB device protocol. */
314 uint8_t bMaxPacketSize0; /**< Size of the control (address 0) endpoint's bank in bytes. */
315 uint16_t idVendor; /**< Vendor ID for the USB product. */
316 uint16_t idProduct; /**< Unique product ID for the USB product. */
317 uint16_t bcdDevice; /**< Product release (version) number. */
318 uint8_t iManufacturer; /**< String index for the manufacturer's name. The
319 * host will request this string via a separate
320 * control request for the string descriptor.
321 *
322 * \note If no string supplied, use \ref NO_DESCRIPTOR.
323 */
324 uint8_t iProduct; /**< String index for the product name/details.
325 *
326 * \see ManufacturerStrIndex structure entry.
327 */
328 uint8_t iSerialNumber; /**< String index for the product's globally unique hexadecimal
329 * serial number, in uppercase Unicode ASCII.
330 *
331 * \note On some AVR models, there is an embedded serial number
332 * in the chip which can be used for the device serial number.
333 * To use this serial number, set this to USE_INTERNAL_SERIAL.
334 * On unsupported devices, this will evaluate to 0 and will cause
335 * the host to generate a pseudo-unique value for the device upon
336 * insertion.
337 *
338 * \see ManufacturerStrIndex structure entry.
339 */
340 uint8_t bNumConfigurations; /**< Total number of configurations supported by
341 * the device.
342 */
343 } USB_StdDescriptor_Device_t;
344
345 /** \brief Standard USB Configuration Descriptor (LUFA naming conventions).
346 *
347 * Type define for a standard Configuration Descriptor header. This structure uses LUFA-specific element names
348 * to make each element's purpose clearer.
349 *
350 * \see \ref USB_StdDescriptor_Configuration_Header_t for the version of this define with standard element names.
351 */
352 typedef struct
353 {
354 USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
355
356 uint16_t TotalConfigurationSize; /**< Size of the configuration descriptor header,
357 * and all sub descriptors inside the configuration.
358 */
359 uint8_t TotalInterfaces; /**< Total number of interfaces in the configuration. */
360
361 uint8_t ConfigurationNumber; /**< Configuration index of the current configuration. */
362 uint8_t ConfigurationStrIndex; /**< Index of a string descriptor describing the configuration. */
363
364 uint8_t ConfigAttributes; /**< Configuration attributes, comprised of a mask of zero or
365 * more USB_CONFIG_ATTR_* masks.
366 */
367
368 uint8_t MaxPowerConsumption; /**< Maximum power consumption of the device while in the
369 * current configuration, calculated by the \ref USB_CONFIG_POWER_MA()
370 * macro.
371 */
372 } USB_Descriptor_Configuration_Header_t;
373
374 /** \brief Standard USB Configuration Descriptor (USB-IF naming conventions).
375 *
376 * Type define for a standard Configuration Descriptor header. This structure uses the relevant standard's given element names
377 * to ensure compatibility with the standard.
378 *
379 * \see \ref USB_Descriptor_Device_t for the version of this define with non-standard LUFA specific element names.
380 */
381 typedef struct
382 {
383 uint8_t bLength; /**< Size of the descriptor, in bytes. */
384 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
385 * given by the specific class.
386 */
387 uint16_t wTotalLength; /**< Size of the configuration descriptor header,
388 * and all sub descriptors inside the configuration.
389 */
390 uint8_t bNumInterfaces; /**< Total number of interfaces in the configuration. */
391 uint8_t bConfigurationValue; /**< Configuration index of the current configuration. */
392 uint8_t iConfiguration; /**< Index of a string descriptor describing the configuration. */
393 uint8_t bmAttributes; /**< Configuration attributes, comprised of a mask of zero or
394 * more USB_CONFIG_ATTR_* masks.
395 */
396 uint8_t bMaxPower; /**< Maximum power consumption of the device while in the
397 * current configuration, calculated by the \ref USB_CONFIG_POWER_MA()
398 * macro.
399 */
400 } USB_StdDescriptor_Configuration_Header_t;
401
402 /** \brief Standard USB Interface Descriptor (LUFA naming conventions).
403 *
404 * Type define for a standard Interface Descriptor. This structure uses LUFA-specific element names
405 * to make each element's purpose clearer.
406 *
407 * \see \ref USB_StdDescriptor_Interface_t for the version of this define with standard element names.
408 */
409 typedef struct
410 {
411 USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
412
413 uint8_t InterfaceNumber; /**< Index of the interface in the current configuration. */
414 uint8_t AlternateSetting; /**< Alternate setting for the interface number. The same
415 * interface number can have multiple alternate settings
416 * with different endpoint configurations, which can be
417 * selected by the host.
418 */
419 uint8_t TotalEndpoints; /**< Total number of endpoints in the interface. */
420
421 uint8_t Class; /**< Interface class ID. */
422 uint8_t SubClass; /**< Interface subclass ID. */
423 uint8_t Protocol; /**< Interface protocol ID. */
424
425 uint8_t InterfaceStrIndex; /**< Index of the string descriptor describing the interface. */
426 } USB_Descriptor_Interface_t;
427
428 /** \brief Standard USB Interface Descriptor (USB-IF naming conventions).
429 *
430 * Type define for a standard Interface Descriptor. This structure uses the relevant standard's given element names
431 * to ensure compatibility with the standard.
432 *
433 * \see \ref USB_Descriptor_Interface_t for the version of this define with non-standard LUFA specific element names.
434 */
435 typedef struct
436 {
437 uint8_t bLength; /**< Size of the descriptor, in bytes. */
438 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
439 * given by the specific class.
440 */
441 uint8_t bInterfaceNumber; /**< Index of the interface in the current configuration. */
442 uint8_t bAlternateSetting; /**< Alternate setting for the interface number. The same
443 * interface number can have multiple alternate settings
444 * with different endpoint configurations, which can be
445 * selected by the host.
446 */
447 uint8_t bNumEndpoints; /**< Total number of endpoints in the interface. */
448 uint8_t bInterfaceClass; /**< Interface class ID. */
449 uint8_t bInterfaceSubClass; /**< Interface subclass ID. */
450 uint8_t bInterfaceProtocol; /**< Interface protocol ID. */
451 uint8_t iInterface; /**< Index of the string descriptor describing the
452 * interface.
453 */
454 } USB_StdDescriptor_Interface_t;
455
456 /** \brief Standard USB Interface Association Descriptor (LUFA naming conventions).
457 *
458 * Type define for a standard Interface Association Descriptor. This structure uses LUFA-specific element names
459 * to make each element's purpose clearer.
460 *
461 * This descriptor has been added as a supplement to the USB2.0 standard, in the ECN located at
462 * <a>http://www.usb.org/developers/docs/InterfaceAssociationDescriptor_ecn.pdf</a>. It allows compound
463 * devices with multiple interfaces related to the same function to have the multiple interfaces bound
464 * together at the point of enumeration, loading one generic driver for all the interfaces in the single
465 * function. Read the ECN for more information.
466 *
467 * \see \ref USB_StdDescriptor_Interface_Association_t for the version of this define with standard element names.
468 */
469 typedef struct
470 {
471 USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
472
473 uint8_t FirstInterfaceIndex; /**< Index of the first associated interface. */
474 uint8_t TotalInterfaces; /**< Total number of associated interfaces. */
475
476 uint8_t Class; /**< Interface class ID. */
477 uint8_t SubClass; /**< Interface subclass ID. */
478 uint8_t Protocol; /**< Interface protocol ID. */
479
480 uint8_t IADStrIndex; /**< Index of the string descriptor describing the
481 * interface association.
482 */
483 } USB_Descriptor_Interface_Association_t;
484
485 /** \brief Standard USB Interface Association Descriptor (USB-IF naming conventions).
486 *
487 * Type define for a standard Interface Association Descriptor. This structure uses the relevant standard's given
488 * element names to ensure compatibility with the standard.
489 *
490 * This descriptor has been added as a supplement to the USB2.0 standard, in the ECN located at
491 * <a>http://www.usb.org/developers/docs/InterfaceAssociationDescriptor_ecn.pdf</a>. It allows compound
492 * devices with multiple interfaces related to the same function to have the multiple interfaces bound
493 * together at the point of enumeration, loading one generic driver for all the interfaces in the single
494 * function. Read the ECN for more information.
495 *
496 * \see \ref USB_Descriptor_Interface_Association_t for the version of this define with non-standard LUFA specific
497 * element names.
498 */
499 typedef struct
500 {
501 uint8_t bLength; /**< Size of the descriptor, in bytes. */
502 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
503 * given by the specific class.
504 */
505 uint8_t bFirstInterface; /**< Index of the first associated interface. */
506 uint8_t bInterfaceCount; /**< Total number of associated interfaces. */
507 uint8_t bFunctionClass; /**< Interface class ID. */
508 uint8_t bFunctionSubClass; /**< Interface subclass ID. */
509 uint8_t bFunctionProtocol; /**< Interface protocol ID. */
510 uint8_t iFunction; /**< Index of the string descriptor describing the
511 * interface association.
512 */
513 } USB_StdDescriptor_Interface_Association_t;
514
515 /** \brief Standard USB Endpoint Descriptor (LUFA naming conventions).
516 *
517 * Type define for a standard Endpoint Descriptor. This structure uses LUFA-specific element names
518 * to make each element's purpose clearer.
519 *
520 * \see \ref USB_StdDescriptor_Endpoint_t for the version of this define with standard element names.
521 */
522 typedef struct
523 {
524 USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
525
526 uint8_t EndpointAddress; /**< Logical address of the endpoint within the device for the current
527 * configuration, including direction mask.
528 */
529 uint8_t Attributes; /**< Endpoint attributes, comprised of a mask of the endpoint type (EP_TYPE_*)
530 * and attributes (ENDPOINT_ATTR_*) masks.
531 */
532 uint16_t EndpointSize; /**< Size of the endpoint bank, in bytes. This indicates the maximum packet
533 * size that the endpoint can receive at a time.
534 */
535 uint8_t PollingIntervalMS; /**< Polling interval in milliseconds for the endpoint if it is an INTERRUPT
536 * or ISOCHRONOUS type.
537 */
538 } USB_Descriptor_Endpoint_t;
539
540 /** \brief Standard USB Endpoint Descriptor (USB-IF naming conventions).
541 *
542 * Type define for a standard Endpoint Descriptor. This structure uses the relevant standard's given
543 * element names to ensure compatibility with the standard.
544 *
545 * \see \ref USB_Descriptor_Endpoint_t for the version of this define with non-standard LUFA specific
546 * element names.
547 */
548 typedef struct
549 {
550 uint8_t bLength; /**< Size of the descriptor, in bytes. */
551 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a
552 * value given by the specific class.
553 */
554 uint8_t bEndpointAddress; /**< Logical address of the endpoint within the device for the current
555 * configuration, including direction mask.
556 */
557 uint8_t bmAttributes; /**< Endpoint attributes, comprised of a mask of the endpoint type (EP_TYPE_*)
558 * and attributes (ENDPOINT_ATTR_*) masks.
559 */
560 uint16_t wMaxPacketSize; /**< Size of the endpoint bank, in bytes. This indicates the maximum packet size
561 * that the endpoint can receive at a time.
562 */
563 uint8_t bInterval; /**< Polling interval in milliseconds for the endpoint if it is an INTERRUPT or
564 * ISOCHRONOUS type.
565 */
566 } USB_StdDescriptor_Endpoint_t;
567
568 /** \brief Standard USB String Descriptor (LUFA naming conventions).
569 *
570 * Type define for a standard string descriptor. Unlike other standard descriptors, the length
571 * of the descriptor for placement in the descriptor header must be determined by the \ref USB_STRING_LEN()
572 * macro rather than by the size of the descriptor structure, as the length is not fixed.
573 *
574 * This structure should also be used for string index 0, which contains the supported language IDs for
575 * the device as an array.
576 *
577 * This structure uses LUFA-specific element names to make each element's purpose clearer.
578 *
579 * \see \ref USB_StdDescriptor_String_t for the version of this define with standard element names.
580 */
581 typedef struct
582 {
583 USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
584
585 wchar_t UnicodeString[]; /**< String data, as unicode characters (alternatively,
586 * string language IDs). If normal ASCII characters are
587 * to be used, they must be added as an array of characters
588 * rather than a normal C string so that they are widened to
589 * Unicode size.
590 *
591 * Under GCC, strings prefixed with the "L" character (before
592 * the opening string quotation mark) are considered to be
593 * Unicode strings, and may be used instead of an explicit
594 * array of ASCII characters.
595 */
596 } USB_Descriptor_String_t;
597
598 /** \brief Standard USB String Descriptor (USB-IF naming conventions).
599 *
600 * Type define for a standard string descriptor. Unlike other standard descriptors, the length
601 * of the descriptor for placement in the descriptor header must be determined by the \ref USB_STRING_LEN()
602 * macro rather than by the size of the descriptor structure, as the length is not fixed.
603 *
604 * This structure should also be used for string index 0, which contains the supported language IDs for
605 * the device as an array.
606 *
607 * This structure uses the relevant standard's given element names to ensure compatibility with the standard.
608 *
609 * \see \ref USB_Descriptor_String_t for the version of this define with with non-standard LUFA specific
610 * element names.
611 */
612 typedef struct
613 {
614 uint8_t bLength; /**< Size of the descriptor, in bytes. */
615 uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t
616 * or a value given by the specific class.
617 */
618 int16_t bString[]; /**< String data, as unicode characters (alternatively, string language IDs).
619 * If normal ASCII characters are to be used, they must be added as an array
620 * of characters rather than a normal C string so that they are widened to
621 * Unicode size.
622 *
623 * Under GCC, strings prefixed with the "L" character (before the opening string
624 * quotation mark) are considered to be Unicode strings, and may be used instead
625 * of an explicit array of ASCII characters.
626 */
627 } USB_StdDescriptor_String_t;
628
629 /* Private Interface - For use in library only: */
630 #if !defined(__DOXYGEN__)
631 /* Macros: */
632 #define VERSION_TENS(x) (int)((x) / 10)
633 #define VERSION_ONES(x) (int)((x) - (10 * VERSION_TENS(x)))
634 #define VERSION_TENTHS(x) (int)(((x) - (int)(x)) * 10)
635 #define VERSION_HUNDREDTHS(x) (int)((((x) - (int)(x)) * 100) - (10 * VERSION_TENTHS(x)))
636 #endif
637
638 /* Disable C linkage for C++ Compilers: */
639 #if defined(__cplusplus)
640 }
641 #endif
642
643 #endif
644
645 /** @} */
USB isp AVR programmer