1 /* USB Keyboard and CDC Serial Device for Teensy USB Development Board
2 * Copyright (c) 2009 PJRC.COM, LLC
3 * Modifications by Jacob Alexander (2011-2014)
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #ifndef usb_keyboard_serial_h__
25 #define usb_keyboard_serial_h__
27 // ----- Includes -----
34 #include <avr/pgmspace.h>
35 #include <avr/interrupt.h>
39 #include <util/delay.h>
42 #include "output_com.h"
46 // ----- Function Declarations -----
48 // Basic USB Configuration
49 void usb_init(); // initialize everything
50 uint8_t usb_configured(); // is the USB port configured
52 // Keyboard HID Functions
53 void usb_keyboard_send();
55 // Chip Level Functions
56 void usb_device_reload(); // Enable firmware reflash mode
58 // USB Serial CDC Functions
59 int16_t usb_serial_getchar(); // receive a character (-1 if timeout/error)
60 uint8_t usb_serial_available(); // number of bytes in receive buffer
61 void usb_serial_flush_input(); // discard any buffered input
64 int8_t usb_serial_putchar(uint8_t c); // transmit a character
65 int8_t usb_serial_putchar_nowait(uint8_t c); // transmit a character, do not wait
66 int8_t usb_serial_write(const char *buffer, uint16_t size); // transmit a buffer
67 void usb_serial_flush_output(); // immediately transmit any buffered output
70 uint32_t usb_serial_get_baud(); // get the baud rate
71 uint8_t usb_serial_get_stopbits(); // get the number of stop bits
72 uint8_t usb_serial_get_paritytype(); // get the parity type
73 uint8_t usb_serial_get_numbits(); // get the number of data bits
74 uint8_t usb_serial_get_control(); // get the RTS and DTR signal state
75 int8_t usb_serial_set_control(uint8_t signals); // set DSR, DCD, RI, etc
81 // Software reset the chip
82 #define usb_device_software_reset() do { wdt_enable( WDTO_15MS ); for(;;); } while(0)
84 // See EPSIZE -> UECFG1X - 128 and 256 bytes are for endpoint 1 only
85 #define EP_SIZE(s) ((s) == 256 ? 0x50 : \
86 ((s) == 128 ? 0x40 : \
92 #define LSB(n) (n & 255)
93 #define MSB(n) ((n >> 8) & 255)
97 // ----- Defines -----
99 // constants corresponding to the various serial parameters
100 #define USB_SERIAL_DTR 0x01
101 #define USB_SERIAL_RTS 0x02
102 #define USB_SERIAL_1_STOP 0
103 #define USB_SERIAL_1_5_STOP 1
104 #define USB_SERIAL_2_STOP 2
105 #define USB_SERIAL_PARITY_NONE 0
106 #define USB_SERIAL_PARITY_ODD 1
107 #define USB_SERIAL_PARITY_EVEN 2
108 #define USB_SERIAL_PARITY_MARK 3
109 #define USB_SERIAL_PARITY_SPACE 4
110 #define USB_SERIAL_DCD 0x01
111 #define USB_SERIAL_DSR 0x02
112 #define USB_SERIAL_BREAK 0x04
113 #define USB_SERIAL_RI 0x08
114 #define USB_SERIAL_FRAME_ERR 0x10
115 #define USB_SERIAL_PARITY_ERR 0x20
116 #define USB_SERIAL_OVERRUN_ERR 0x40
118 #define EP_TYPE_CONTROL 0x00
119 #define EP_TYPE_BULK_IN 0x81
120 #define EP_TYPE_BULK_OUT 0x80
121 #define EP_TYPE_INTERRUPT_IN 0xC1
122 #define EP_TYPE_INTERRUPT_OUT 0xC0
123 #define EP_TYPE_ISOCHRONOUS_IN 0x41
124 #define EP_TYPE_ISOCHRONOUS_OUT 0x40
126 #define EP_SINGLE_BUFFER 0x02
127 #define EP_DOUBLE_BUFFER 0x06
129 #define MAX_ENDPOINT 4
131 #if defined(__AVR_AT90USB162__)
133 #define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
134 #define USB_CONFIG() (USBCON = (1<<USBE))
135 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
137 #elif defined(__AVR_ATmega32U4__)
138 #define HW_CONFIG() (UHWCON = 0x01)
139 #define PLL_CONFIG() (PLLCSR = 0x12)
140 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
141 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
143 #elif defined(__AVR_AT90USB646__)
144 #define HW_CONFIG() (UHWCON = 0x81)
145 #define PLL_CONFIG() (PLLCSR = 0x1A)
146 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
147 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
149 #elif defined(__AVR_AT90USB1286__)
150 #define HW_CONFIG() (UHWCON = 0x81)
151 #define PLL_CONFIG() (PLLCSR = 0x16)
152 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
153 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
156 // standard control endpoint request types
158 #define CLEAR_FEATURE 1
159 #define SET_FEATURE 3
160 #define SET_ADDRESS 5
161 #define GET_DESCRIPTOR 6
162 #define GET_CONFIGURATION 8
163 #define SET_CONFIGURATION 9
164 #define GET_INTERFACE 10
165 #define SET_INTERFACE 11
167 // HID (human interface device)
168 #define HID_GET_REPORT 1
169 #define HID_GET_IDLE 2
170 #define HID_GET_PROTOCOL 3
171 #define HID_SET_REPORT 9
172 #define HID_SET_IDLE 10
173 #define HID_SET_PROTOCOL 11
175 // CDC (communication class device)
176 #define CDC_SET_LINE_CODING 0x20
177 #define CDC_GET_LINE_CODING 0x21
178 #define CDC_SET_CONTROL_LINE_STATE 0x22
181 // When you write data, it goes into a USB endpoint buffer, which
182 // is transmitted to the PC when it becomes full, or after a timeout
183 // with no more writes. Even if you write in exactly packet-size
184 // increments, this timeout is used to send a "zero length packet"
185 // that tells the PC no more data is expected and it should pass
186 // any buffered data to the application that may be waiting. If
187 // you want data sent immediately, call usb_serial_flush_output().
188 #define TRANSMIT_FLUSH_TIMEOUT 5 /* in milliseconds */
190 // If the PC is connected but not "listening", this is the length
191 // of time before usb_serial_getchar() returns with an error. This
192 // is roughly equivilant to a real UART simply transmitting the
193 // bits on a wire where nobody is listening, except you get an error
194 // code which you can ignore for serial-like discard of data, or
195 // use to know your data wasn't sent.
196 #define TRANSMIT_TIMEOUT 25 /* in milliseconds */
200 // ----- Endpoint Configuration -----
202 #define ENDPOINT0_SIZE 32
204 #define KEYBOARD_NKRO_INTERFACE 0
205 #define KEYBOARD_NKRO_ENDPOINT 1
206 #define KEYBOARD_NKRO_SIZE 128
207 #define KEYBOARD_NKRO_HID_BUFFER EP_DOUBLE_BUFFER
209 #define KEYBOARD_INTERFACE 1
210 #define KEYBOARD_ENDPOINT 2
211 #define KEYBOARD_SIZE 8
212 #define KEYBOARD_HID_BUFFER EP_DOUBLE_BUFFER
214 #define CDC_IAD_DESCRIPTOR 1
215 #define CDC_STATUS_INTERFACE 2
216 #define CDC_DATA_INTERFACE 3
217 #define CDC_ACM_ENDPOINT 3
218 #define CDC_RX_ENDPOINT 4
219 #define CDC_TX_ENDPOINT 5
220 #if defined(__AVR_AT90USB162__)
221 #define CDC_ACM_SIZE 16
222 #define CDC_ACM_BUFFER EP_SINGLE_BUFFER
223 #define CDC_RX_SIZE 32
224 #define CDC_RX_BUFFER EP_DOUBLE_BUFFER
225 #define CDC_TX_SIZE 32
226 #define CDC_TX_BUFFER EP_DOUBLE_BUFFER
228 #define CDC_ACM_SIZE 16
229 #define CDC_ACM_BUFFER EP_SINGLE_BUFFER
230 #define CDC_RX_SIZE 64
231 #define CDC_RX_BUFFER EP_DOUBLE_BUFFER
232 #define CDC_TX_SIZE 64
233 #define CDC_TX_BUFFER EP_DOUBLE_BUFFER
236 // Endpoint 0 is reserved for the control endpoint
237 // Endpoint 1 has a 256 byte buffer
238 // Endpoints 2-6 have 64 byte buffers
239 static const uint8_t PROGMEM endpoint_config_table[] = {
240 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_NKRO_SIZE) | KEYBOARD_NKRO_HID_BUFFER, // 256 byte
241 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_SIZE) | KEYBOARD_HID_BUFFER, // 64 byte
242 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(CDC_ACM_SIZE) | CDC_ACM_BUFFER, // 64 byte
243 1, EP_TYPE_BULK_OUT, EP_SIZE(CDC_RX_SIZE) | CDC_RX_BUFFER, // 64 byte
244 1, EP_TYPE_BULK_IN, EP_SIZE(CDC_TX_SIZE) | CDC_TX_BUFFER, // 64 byte
250 // ----- Descriptor Configuration -----
252 // Descriptors are the data that your computer reads when it auto-detects
253 // this USB device (called "enumeration" in USB lingo). The most commonly
254 // changed items are editable at the top of this file. Changing things
255 // in here should only be done by those who've read chapter 9 of the USB
256 // spec and relevant portions of any USB class specifications!
259 static const uint8_t PROGMEM device_descriptor[] = {
261 1, // bDescriptorType
262 0x00, 0x02, // bcdUSB
263 0x03, // bDeviceClass - 0x03 = HID Class
264 0, // bDeviceSubClass
265 0, // bDeviceProtocol
266 ENDPOINT0_SIZE, // bMaxPacketSize0
267 LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
268 LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
269 0x00, 0x01, // bcdDevice
273 1 // bNumConfigurations
276 // Specify only a single USB speed
277 static const uint8_t PROGMEM device_qualifier_descriptor[] = {
281 // Disable USB debug descriptor
282 static const uint8_t PROGMEM usb_debug_descriptor[] = {
286 // Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
287 static const uint8_t PROGMEM keyboard_hid_report_desc[] = {
288 // Keyboard Collection
289 0x05, 0x01, // Usage Page (Generic Desktop),
290 0x09, 0x06, // Usage (Keyboard),
291 0xA1, 0x01, // Collection (Application) - Keyboard,
294 0x75, 0x01, // Report Size (1),
295 0x95, 0x08, // Report Count (8),
296 0x05, 0x07, // Usage Page (Key Codes),
297 0x19, 0xE0, // Usage Minimum (224),
298 0x29, 0xE7, // Usage Maximum (231),
299 0x15, 0x00, // Logical Minimum (0),
300 0x25, 0x01, // Logical Maximum (1),
301 0x81, 0x02, // Input (Data, Variable, Absolute),
304 0x75, 0x08, // Report Size (8),
305 0x95, 0x01, // Report Count (1),
306 0x81, 0x03, // Output (Constant),
309 0x75, 0x01, // Report Size (1),
310 0x95, 0x05, // Report Count (5),
311 0x05, 0x08, // Usage Page (LEDs),
312 0x19, 0x01, // Usage Minimum (1),
313 0x29, 0x05, // Usage Maximum (5),
314 0x91, 0x02, // Output (Data, Variable, Absolute),
316 // LED Report Padding
317 0x75, 0x03, // Report Size (3),
318 0x95, 0x01, // Report Count (1),
319 0x91, 0x03, // Output (Constant),
322 0x75, 0x08, // Report Size (8),
323 0x95, 0x06, // Report Count (6),
324 0x15, 0x00, // Logical Minimum (0),
325 0x25, 0x7F, // Logical Maximum(104),
326 0x05, 0x07, // Usage Page (Key Codes),
327 0x19, 0x00, // Usage Minimum (0),
328 0x29, 0x7F, // Usage Maximum (104),
329 0x81, 0x00, // Input (Data, Array),
330 0xc0, // End Collection - Keyboard
333 // Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
334 static const uint8_t PROGMEM keyboard_nkro_hid_report_desc[] = {
335 // Keyboard Collection
336 0x05, 0x01, // Usage Page (Generic Desktop),
337 0x09, 0x06, // Usage (Keyboard),
338 0xA1, 0x01, // Collection (Application) - Keyboard,
341 0x85, 0x01, // Report ID (1),
342 0x75, 0x01, // Report Size (1),
343 0x95, 0x08, // Report Count (8),
344 0x15, 0x00, // Logical Minimum (0),
345 0x25, 0x01, // Logical Maximum (1),
346 0x05, 0x07, // Usage Page (Key Codes),
347 0x19, 0xE0, // Usage Minimum (224),
348 0x29, 0xE7, // Usage Maximum (231),
349 0x81, 0x02, // Input (Data, Variable, Absolute),
352 0x85, 0x02, // Report ID (2),
353 0x75, 0x01, // Report Size (1),
354 0x95, 0x05, // Report Count (5),
355 0x05, 0x08, // Usage Page (LEDs),
356 0x19, 0x01, // Usage Minimum (1),
357 0x29, 0x05, // Usage Maximum (5),
358 0x91, 0x02, // Output (Data, Variable, Absolute),
360 // LED Report Padding
361 0x75, 0x03, // Report Size (3),
362 0x95, 0x01, // Report Count (1),
363 0x91, 0x03, // Output (Constant),
365 // Normal Keys - Using an NKRO Bitmap
368 // Supports all keys defined by the spec, except 1-3 which define error events
369 // and 0 which is "no keys pressed"
370 // See http://www.usb.org/developers/hidpage/Hut1_12v2.pdf Chapter 10
371 // Or Macros/PartialMap/usb_hid.h
373 // 165-175 are reserved/unused as well as 222-223 and 232-65535
374 // 224-231 are used for modifiers (see above)
376 // Packing of bitmaps are as follows:
377 // 4-164 : 20 bytes + 1 Report ID byte (0x04-0xA4)
378 // 176-221 : 6 bytes + 1 Report ID byte (0xB0-0xDD) (45 bits + 3 padding bits for 6 bytes total)
380 // 4-164 (20 bytes/160 bits)
381 0x85, 0x03, // Report ID (3),
382 0x75, 0x01, // Report Size (1),
383 0x95, 0xA0, // Report Count (160),
384 0x15, 0x00, // Logical Minimum (0),
385 0x25, 0x01, // Logical Maximum (1),
386 0x05, 0x07, // Usage Page (Key Codes),
387 0x19, 0x04, // Usage Minimum (4),
388 0x29, 0xA4, // Usage Maximum (164),
389 0x81, 0x02, // Input (Data, Variable, Absolute, Bitfield),
392 0x85, 0x04, // Report ID (4),
393 0x75, 0x01, // Report Size (1),
394 0x95, 0x2D, // Report Count (45),
395 0x15, 0x00, // Logical Minimum (0),
396 0x25, 0x01, // Logical Maximum (1),
397 0x05, 0x07, // Usage Page (Key Codes),
398 0x19, 0xB0, // Usage Minimum (176),
399 0x29, 0xDD, // Usage Maximum (221),
400 0x81, 0x02, // Input (Data, Variable, Absolute, Bitfield),
402 // 176-221 Padding (3 bits)
403 0x75, 0x03, // Report Size (3),
404 0x95, 0x01, // Report Count (1),
405 0x81, 0x03, // Input (Constant),
406 0xc0, // End Collection - Keyboard
408 // System Control Collection
411 // Not bothering with NKRO for this table. If there's need, I can implement it. -HaaTa
412 // Using a 1KRO scheme
413 0x05, 0x01, // Usage Page (Generic Desktop),
414 0x09, 0x80, // Usage (System Control),
415 0xA1, 0x01, // Collection (Application),
416 0x85, 0x05, // Report ID (5),
417 0x75, 0x08, // Report Size (8),
418 0x95, 0x01, // Report Count (1),
419 0x16, 0x81, 0x00, // Logical Minimum (129),
420 0x26, 0xB7, 0x00, // Logical Maximum (183),
421 0x19, 0x81, // Usage Minimum (129),
422 0x29, 0xB7, // Usage Maximum (183),
423 0x81, 0x00, // Input (Data, Array),
424 0xc0, // End Collection - System Control
426 // Consumer Control Collection - Media Keys
429 // Not bothering with NKRO for this table. If there's a need, I can implement it. -HaaTa
430 // Using a 1KRO scheme
431 0x05, 0x0c, // Usage Page (Consumer),
432 0x09, 0x01, // Usage (Consumer Control),
433 0xA1, 0x01, // Collection (Application),
434 0x85, 0x06, // Report ID (6),
435 0x75, 0x10, // Report Size (16),
436 0x95, 0x01, // Report Count (1),
437 0x16, 0x20, 0x00, // Logical Minimum (32),
438 0x26, 0x9C, 0x02, // Logical Maximum (668),
439 0x05, 0x0C, // Usage Page (Consumer),
440 0x19, 0x20, // Usage Minimum (32),
441 0x2A, 0x9C, 0x02, // Usage Maximum (668),
442 0x81, 0x00, // Input (Data, Array),
443 0xc0, // End Collection - Consumer Control
446 // <Configuration> + <Keyboard HID> + <NKRO Keyboard HID> + <Serial CDC>
447 #define CONFIG1_DESC_SIZE (9 + 9+9+7 + 9+9+7 + 8+9+5+5+4+5+7+9+7+7)
448 #define KEYBOARD_HID_DESC_OFFSET (9 + 9)
449 #define KEYBOARD_NKRO_HID_DESC_OFFSET (9 + 9+9+7 + 9)
450 #define SERIAL_CDC_DESC_OFFSET (9 + 9+9+7 + 9+9+7)
451 static const uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
452 // --- Configuration ---
454 // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
456 2, // bDescriptorType;
457 LSB(CONFIG1_DESC_SIZE), // wTotalLength
458 MSB(CONFIG1_DESC_SIZE),
460 1, // bConfigurationValue
462 0x80, // bmAttributes
465 // --- Keyboard HID ---
467 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
469 4, // bDescriptorType
470 KEYBOARD_INTERFACE, // bInterfaceNumber
471 0, // bAlternateSetting
473 0x03, // bInterfaceClass (0x03 = HID)
474 0x01, // bInterfaceSubClass (0x00 = Non-Boot, 0x01 = Boot)
475 0x01, // bInterfaceProtocol (0x01 = Keyboard)
478 // HID interface descriptor, HID 1.11 spec, section 6.2.1
480 0x21, // bDescriptorType
481 0x11, 0x01, // bcdHID
482 0, // bCountryCode - Setting to 0/Undefined
483 1, // bNumDescriptors
484 0x22, // bDescriptorType
485 LSB(sizeof(keyboard_hid_report_desc)), // wDescriptorLength
486 MSB(sizeof(keyboard_hid_report_desc)),
488 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
490 5, // bDescriptorType
491 KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress
492 0x03, // bmAttributes (0x03=intr)
493 KEYBOARD_SIZE, 0, // wMaxPacketSize
496 // --- NKRO Keyboard HID ---
498 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
500 4, // bDescriptorType
501 KEYBOARD_NKRO_INTERFACE, // bInterfaceNumber
502 0, // bAlternateSetting
504 0x03, // bInterfaceClass (0x03 = HID)
505 0x00, // bInterfaceSubClass (0x00 = Non-Boot, 0x01 = Boot)
506 0x01, // bInterfaceProtocol (0x01 = Keyboard)
509 // HID interface descriptor, HID 1.11 spec, section 6.2.1
511 0x21, // bDescriptorType
512 0x11, 0x01, // bcdHID
513 0, // bCountryCode - Setting to 0/Undefined
514 1, // bNumDescriptors
515 0x22, // bDescriptorType
517 LSB(sizeof(keyboard_nkro_hid_report_desc)),
518 MSB(sizeof(keyboard_nkro_hid_report_desc)),
520 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
522 5, // bDescriptorType
523 KEYBOARD_NKRO_ENDPOINT | 0x80, // bEndpointAddress
524 0x03, // bmAttributes (0x03=intr)
525 KEYBOARD_NKRO_SIZE, 0, // wMaxPacketSize
528 // --- Serial CDC ---
530 // interface association descriptor, USB ECN, Table 9-Z
532 11, // bDescriptorType
533 CDC_STATUS_INTERFACE, // bFirstInterface
534 2, // bInterfaceCount
535 0x02, // bFunctionClass
536 0x02, // bFunctionSubClass
537 0x01, // bFunctionProtocol
540 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
542 4, // bDescriptorType
543 CDC_STATUS_INTERFACE, // bInterfaceNumber
544 0, // bAlternateSetting
546 0x02, // bInterfaceClass
547 0x02, // bInterfaceSubClass
548 0x01, // bInterfaceProtocol
551 // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
552 5, // bFunctionLength
553 0x24, // bDescriptorType
554 0x00, // bDescriptorSubtype
555 0x10, 0x01, // bcdCDC
557 // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
558 5, // bFunctionLength
559 0x24, // bDescriptorType
560 0x01, // bDescriptorSubtype
561 0x01, // bmCapabilities
564 // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
565 4, // bFunctionLength
566 0x24, // bDescriptorType
567 0x02, // bDescriptorSubtype
568 0x06, // bmCapabilities
570 // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
571 5, // bFunctionLength
572 0x24, // bDescriptorType
573 0x06, // bDescriptorSubtype
574 CDC_STATUS_INTERFACE, // bMasterInterface
575 CDC_DATA_INTERFACE, // bSlaveInterface0
577 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
579 5, // bDescriptorType
580 CDC_ACM_ENDPOINT | 0x80, // bEndpointAddress
581 0x03, // bmAttributes (0x03=intr)
582 CDC_ACM_SIZE, 0, // wMaxPacketSize
585 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
587 4, // bDescriptorType
588 CDC_DATA_INTERFACE, // bInterfaceNumber
589 0, // bAlternateSetting
591 0x0A, // bInterfaceClass
592 0x00, // bInterfaceSubClass
593 0x00, // bInterfaceProtocol
596 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
598 5, // bDescriptorType
599 CDC_RX_ENDPOINT, // bEndpointAddress
600 0x02, // bmAttributes (0x02=bulk)
601 CDC_RX_SIZE, 0, // wMaxPacketSize
604 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
606 5, // bDescriptorType
607 CDC_TX_ENDPOINT | 0x80, // bEndpointAddress
608 0x02, // bmAttributes (0x02=bulk)
609 CDC_TX_SIZE, 0, // wMaxPacketSize
614 // Configuration Endpoint (0) Descriptor
615 struct usb_string_descriptor_struct {
617 uint8_t bDescriptorType;
620 static const struct usb_string_descriptor_struct PROGMEM string0 = {
625 static const struct usb_string_descriptor_struct PROGMEM string1 = {
626 sizeof(STR_MANUFACTURER),
630 static const struct usb_string_descriptor_struct PROGMEM string2 = {
635 static const struct usb_string_descriptor_struct PROGMEM string3 = {
641 // This table defines which descriptor data is sent for each specific
642 // request from the host (in wValue and wIndex).
643 static const struct descriptor_list_struct {
648 } PROGMEM descriptor_list[] = {
649 {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
650 {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
651 {0x0600, 0x0000, device_qualifier_descriptor, sizeof(device_qualifier_descriptor)},
652 {0x0A00, 0x0000, usb_debug_descriptor, sizeof(usb_debug_descriptor)},
653 {0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)},
654 {0x2100, KEYBOARD_INTERFACE, config1_descriptor + KEYBOARD_HID_DESC_OFFSET, 9},
655 {0x2200, KEYBOARD_NKRO_INTERFACE, keyboard_nkro_hid_report_desc, sizeof(keyboard_nkro_hid_report_desc)},
656 {0x2100, KEYBOARD_NKRO_INTERFACE, config1_descriptor + KEYBOARD_NKRO_HID_DESC_OFFSET, 9},
657 {0x0300, 0x0000, (const uint8_t *)&string0, 4},
658 {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
659 {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)},
660 {0x0303, 0x0409, (const uint8_t *)&string3, sizeof(STR_SERIAL)}
662 #define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
666 #endif // usb_keyboard_serial_h__