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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)
4  *
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:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
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
21  * THE SOFTWARE.
22  */
23
24 #ifndef usb_keyboard_serial_h__
25 #define usb_keyboard_serial_h__
26
27 // ----- Includes -----
28
29 // Compiler Includes
30 #include <stdint.h>
31
32 // AVR Includes
33 #include <avr/io.h>
34 #include <avr/pgmspace.h>
35 #include <avr/interrupt.h>
36 #include <avr/wdt.h>
37
38 // AVR Util Includes
39 #include <util/delay.h>
40
41 // Local Includes
42 #include "output_com.h"
43
44
45
46 // ----- Function Declarations -----
47
48 // Basic USB Configuration
49 uint8_t usb_init();                     // initialize everything
50 uint8_t usb_configured();               // is the USB port configured
51
52 // Keyboard HID Functions
53 void usb_keyboard_send();
54
55 // Chip Level Functions
56 void usb_device_reload();               // Enable firmware reflash mode
57
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
62
63 // transmitting data
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
68
69 // serial parameters
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
76
77
78
79 // ----- Macros -----
80
81 // Software reset the chip
82 #define usb_device_software_reset() do { wdt_enable( WDTO_15MS ); for(;;); } while(0)
83
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 : \
87                         ((s) ==  64 ? 0x30 : \
88                         ((s) ==  32 ? 0x20 : \
89                         ((s) ==  16 ? 0x10 : \
90                                       0x00)))))
91
92 #define LSB(n) (n & 255)
93 #define MSB(n) ((n >> 8) & 255)
94
95
96
97 // ----- Defines -----
98
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
117
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
125
126 #define EP_SINGLE_BUFFER                0x02
127 #define EP_DOUBLE_BUFFER                0x06
128
129 #define MAX_ENDPOINT            4
130
131 #if defined(__AVR_AT90USB162__)
132 #define HW_CONFIG()
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)))
136
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)))
142
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)))
148
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)))
154 #endif
155
156 // standard control endpoint request types
157 #define GET_STATUS                      0
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
166
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
174
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
179
180 // CDC Configuration
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 */
189
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 */
197
198
199
200 // ----- Endpoint Configuration -----
201
202 #define ENDPOINT0_SIZE           32
203
204 #define KEYBOARD_NKRO_INTERFACE  0
205 #define KEYBOARD_NKRO_ENDPOINT   1
206 #define KEYBOARD_NKRO_SIZE       64
207 #define KEYBOARD_NKRO_HID_BUFFER EP_DOUBLE_BUFFER
208
209 #define KEYBOARD_INTERFACE       1
210 #define KEYBOARD_ENDPOINT        2
211 #define KEYBOARD_SIZE            8
212 #define KEYBOARD_HID_BUFFER      EP_DOUBLE_BUFFER
213
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
227 #else
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
234 #endif
235
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
245         0,                                                                                // 64 byte
246 };
247
248
249
250 // ----- Descriptor Configuration -----
251
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!
257
258
259 static const uint8_t PROGMEM device_descriptor[] = {
260         18,                                     // bLength
261         1,                                      // bDescriptorType
262         0x00, 0x02,                             // bcdUSB
263         0x00,                                   // bDeviceClass - Composite device, 0x00 is required for Windows
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
270         1,                                      // iManufacturer
271         2,                                      // iProduct
272         3,                                      // iSerialNumber
273         1                                       // bNumConfigurations
274 };
275
276 // Specify only a single USB speed
277 static const uint8_t PROGMEM device_qualifier_descriptor[] = {
278         0
279 };
280
281 // Disable USB debug descriptor
282 static const uint8_t PROGMEM usb_debug_descriptor[] = {
283         0
284 };
285
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,
292
293         // Modifier Byte
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),
302
303         // Reserved Byte
304         0x75, 0x08,          //   Report Size (8),
305         0x95, 0x01,          //   Report Count (1),
306         0x81, 0x03,          //   Output (Constant),
307
308         // LED Report
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),
315
316         // LED Report Padding
317         0x75, 0x03,          //   Report Size (3),
318         0x95, 0x01,          //   Report Count (1),
319         0x91, 0x03,          //   Output (Constant),
320
321         // Normal Keys
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
331 };
332
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,
339
340         // LED Report
341         0x85, 0x01,          //   Report ID (1),
342         0x75, 0x01,          //   Report Size (1),
343         0x95, 0x05,          //   Report Count (5),
344         0x05, 0x08,          //   Usage Page (LEDs),
345         0x19, 0x01,          //   Usage Minimum (1),
346         0x29, 0x05,          //   Usage Maximum (5),
347         0x91, 0x02,          //   Output (Data, Variable, Absolute),
348
349         // LED Report Padding
350         0x75, 0x03,          //   Report Size (3),
351         0x95, 0x01,          //   Report Count (1),
352         0x91, 0x03,          //   Output (Constant),
353
354         // Normal Keys - Using an NKRO Bitmap
355         //
356         // NOTES:
357         // Supports all keys defined by the spec, except 1-3 which define error events
358         //  and 0 which is "no keys pressed"
359         // See http://www.usb.org/developers/hidpage/Hut1_12v2.pdf Chapter 10
360         // Or Macros/PartialMap/usb_hid.h
361         //
362         // 50 (ISO \ due to \ bug) and 156 (Clear due to Delete bug) must be excluded
363         //  due to a Linux bug with bitmaps (not useful anyways)
364         // 165-175 are reserved/unused as well as 222-223 and 232-65535
365         //
366         // Compatibility Notes:
367         //  - Using a second endpoint for a boot mode device helps with compatibility
368         //  - DO NOT use Padding in the descriptor for bitfields
369         //    (Mac OSX silently fails... Windows/Linux work correctly)
370         //  - DO NOT use Report IDs, Windows 8.1 will not update keyboard correctly (modifiers disappear)
371         //    (all other OSs, including OSX work fine...)
372         //    (you can use them *iff* you only have 1 per collection)
373         //  - Mac OSX and Windows 8.1 are extremely picky about padding
374         //
375         // Packing of bitmaps are as follows:
376         //   4-49  :  6 bytes (0x04-0x31) ( 46 bits + 2 padding bits for 6 bytes total)
377         //  51-155 : 14 bytes (0x33-0x9B) (105 bits + 6 padding bits for 15 bytes total)
378         // 157-164 :  1 byte  (0x9D-0xA4) (  8 bits)
379         // 176-221 :  6 bytes (0xB0-0xDD) ( 46 bits + 2 padding bits for 6 bytes total)
380         // 224-231 :  1 byte  (0xE0-0xE7) (  8 bits)
381
382         // Modifier Byte
383         0x75, 0x01,          //   Report Size (1),
384         0x95, 0x08,          //   Report Count (8),
385         0x15, 0x00,          //   Logical Minimum (0),
386         0x25, 0x01,          //   Logical Maximum (1),
387         0x05, 0x07,          //   Usage Page (Key Codes),
388         0x19, 0xE0,          //   Usage Minimum (224),
389         0x29, 0xE7,          //   Usage Maximum (231),
390         0x81, 0x02,          //   Input (Data, Variable, Absolute),
391
392         // 4-49 (6 bytes/46 bits) - MainKeys
393         0x75, 0x01,          //   Report Size (1),
394         0x95, 0x2E,          //   Report Count (46),
395         0x15, 0x00,          //   Logical Minimum (0),
396         0x25, 0x01,          //   Logical Maximum (1),
397         0x05, 0x07,          //   Usage Page (Key Codes),
398         0x19, 0x04,          //   Usage Minimum (4),
399         0x29, 0x31,          //   Usage Maximum (49),
400         0x81, 0x02,          //   Input (Data, Variable, Absolute, Bitfield),
401
402         // Padding (2 bits)
403         0x75, 0x02,          //   Report Size (2),
404         0x95, 0x01,          //   Report Count (1),
405         0x81, 0x03,          //   Input (Constant),
406
407         // 51-155 (14 bytes/105 bits) - SecondaryKeys
408         0x75, 0x01,          //   Report Size (1),
409         0x95, 0x69,          //   Report Count (105),
410         0x15, 0x00,          //   Logical Minimum (0),
411         0x25, 0x01,          //   Logical Maximum (1),
412         0x05, 0x07,          //   Usage Page (Key Codes),
413         0x19, 0x33,          //   Usage Minimum (51),
414         0x29, 0x9B,          //   Usage Maximum (155),
415         0x81, 0x02,          //   Input (Data, Variable, Absolute, Bitfield),
416
417         // Padding (7 bits)
418         0x75, 0x07,          //   Report Size (7),
419         0x95, 0x01,          //   Report Count (1),
420         0x81, 0x03,          //   Input (Constant),
421
422         // 157-164 (1 byte/8 bits) - TertiaryKeys
423         0x75, 0x01,          //   Report Size (1),
424         0x95, 0x08,          //   Report Count (8),
425         0x15, 0x00,          //   Logical Minimum (0),
426         0x25, 0x01,          //   Logical Maximum (1),
427         0x05, 0x07,          //   Usage Page (Key Codes),
428         0x19, 0x9D,          //   Usage Minimum (157),
429         0x29, 0xA4,          //   Usage Maximum (164),
430         0x81, 0x02,          //   Input (Data, Variable, Absolute, Bitfield),
431
432         // 176-221 (6 bytes/46 bits) - QuartiaryKeys
433         0x75, 0x01,          //   Report Size (1),
434         0x95, 0x2E,          //   Report Count (46),
435         0x15, 0x00,          //   Logical Minimum (0),
436         0x25, 0x01,          //   Logical Maximum (1),
437         0x05, 0x07,          //   Usage Page (Key Codes),
438         0x19, 0xB0,          //   Usage Minimum (176),
439         0x29, 0xDD,          //   Usage Maximum (221),
440         0x81, 0x02,          //   Input (Data, Variable, Absolute, Bitfield),
441
442         // Padding (2 bits)
443         0x75, 0x02,          //   Report Size (2),
444         0x95, 0x01,          //   Report Count (1),
445         0x81, 0x03,          //   Input (Constant),
446         0xc0,                // End Collection - Keyboard
447
448         // System Control Collection
449         //
450         // NOTES:
451         // Not bothering with NKRO for this table. If there's need, I can implement it. -HaaTa
452         // Using a 1KRO scheme
453         0x05, 0x01,          // Usage Page (Generic Desktop),
454         0x09, 0x80,          // Usage (System Control),
455         0xA1, 0x01,          // Collection (Application),
456         0x85, 0x02,          //   Report ID (2),
457         0x75, 0x08,          //   Report Size (8),
458         0x95, 0x01,          //   Report Count (1),
459         0x16, 0x81, 0x00,    //   Logical Minimum (129),
460         0x26, 0xB7, 0x00,    //   Logical Maximum (183),
461         0x19, 0x81,          //   Usage Minimum (129),
462         0x29, 0xB7,          //   Usage Maximum (183),
463         0x81, 0x00,          //   Input (Data, Array),
464         0xc0,                // End Collection - System Control
465
466         // Consumer Control Collection - Media Keys
467         //
468         // NOTES:
469         // Not bothering with NKRO for this table. If there's a need, I can implement it. -HaaTa
470         // Using a 1KRO scheme
471         0x05, 0x0c,          // Usage Page (Consumer),
472         0x09, 0x01,          // Usage (Consumer Control),
473         0xA1, 0x01,          // Collection (Application),
474         0x85, 0x03,          //   Report ID (3),
475         0x75, 0x10,          //   Report Size (16),
476         0x95, 0x01,          //   Report Count (1),
477         0x16, 0x20, 0x00,    //   Logical Minimum (32),
478         0x26, 0x9C, 0x02,    //   Logical Maximum (668),
479         0x05, 0x0C,          //   Usage Page (Consumer),
480         0x19, 0x20,          //   Usage Minimum (32),
481         0x2A, 0x9C, 0x02,    //   Usage Maximum (668),
482         0x81, 0x00,          //   Input (Data, Array),
483         0xc0,                // End Collection - Consumer Control
484 };
485
486 // <Configuration> + <Keyboard HID> + <NKRO Keyboard HID> + <Serial CDC>
487 #define CONFIG1_DESC_SIZE             (9 + 9+9+7 + 9+9+7 + 8+9+5+5+4+5+7+9+7+7)
488 #define KEYBOARD_HID_DESC_OFFSET      (9 + 9)
489 #define KEYBOARD_NKRO_HID_DESC_OFFSET (9 + 9+9+7 + 9)
490 #define SERIAL_CDC_DESC_OFFSET        (9 + 9+9+7 + 9+9+7)
491 static const uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
492 // --- Configuration ---
493 // - 9 bytes -
494         // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
495         9,                                      // bLength;
496         2,                                      // bDescriptorType;
497         LSB(CONFIG1_DESC_SIZE),                 // wTotalLength
498         MSB(CONFIG1_DESC_SIZE),
499         4,                                      // bNumInterfaces
500         1,                                      // bConfigurationValue
501         0,                                      // iConfiguration
502         0x80,                                   // bmAttributes
503         250,                                    // bMaxPower
504
505 // --- Keyboard HID ---
506 // - 9 bytes -
507         // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
508         9,                                      // bLength
509         4,                                      // bDescriptorType
510         KEYBOARD_INTERFACE,                     // bInterfaceNumber
511         0,                                      // bAlternateSetting
512         1,                                      // bNumEndpoints
513         0x03,                                   // bInterfaceClass (0x03 = HID)
514         0x01,                                   // bInterfaceSubClass (0x00 = Non-Boot, 0x01 = Boot)
515         0x01,                                   // bInterfaceProtocol (0x01 = Keyboard)
516         0,                                      // iInterface
517 // - 9 bytes -
518         // HID interface descriptor, HID 1.11 spec, section 6.2.1
519         9,                                      // bLength
520         0x21,                                   // bDescriptorType
521         0x11, 0x01,                             // bcdHID
522         0,                                      // bCountryCode - Setting to 0/Undefined
523         1,                                      // bNumDescriptors
524         0x22,                                   // bDescriptorType
525         LSB(sizeof(keyboard_hid_report_desc)),  // wDescriptorLength
526         MSB(sizeof(keyboard_hid_report_desc)),
527 // - 7 bytes -
528         // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
529         7,                                      // bLength
530         5,                                      // bDescriptorType
531         KEYBOARD_ENDPOINT | 0x80,               // bEndpointAddress
532         0x03,                                   // bmAttributes (0x03=intr)
533         KEYBOARD_SIZE, 0,                       // wMaxPacketSize
534         1,                                      // bInterval
535
536 // --- NKRO Keyboard HID ---
537 // - 9 bytes -
538         // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
539         9,                                      // bLength
540         4,                                      // bDescriptorType
541         KEYBOARD_NKRO_INTERFACE,                // bInterfaceNumber
542         0,                                      // bAlternateSetting
543         1,                                      // bNumEndpoints
544         0x03,                                   // bInterfaceClass (0x03 = HID)
545         0x00,                                   // bInterfaceSubClass (0x00 = Non-Boot, 0x01 = Boot)
546         0x01,                                   // bInterfaceProtocol (0x01 = Keyboard)
547         0,                                      // iInterface
548 // - 9 bytes -
549         // HID interface descriptor, HID 1.11 spec, section 6.2.1
550         9,                                      // bLength
551         0x21,                                   // bDescriptorType
552         0x11, 0x01,                             // bcdHID
553         0,                                      // bCountryCode - Setting to 0/Undefined
554         1,                                      // bNumDescriptors
555         0x22,                                   // bDescriptorType
556                                                 // wDescriptorLength
557         LSB(sizeof(keyboard_nkro_hid_report_desc)),
558         MSB(sizeof(keyboard_nkro_hid_report_desc)),
559 // - 7 bytes -
560         // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
561         7,                                      // bLength
562         5,                                      // bDescriptorType
563         KEYBOARD_NKRO_ENDPOINT | 0x80,          // bEndpointAddress
564         0x03,                                   // bmAttributes (0x03=intr)
565         KEYBOARD_NKRO_SIZE, 0,                  // wMaxPacketSize
566         1,                                      // bInterval
567
568 // --- Serial CDC ---
569 // - 8 bytes -
570         // interface association descriptor, USB ECN, Table 9-Z
571         8,                                      // bLength
572         11,                                     // bDescriptorType
573         CDC_STATUS_INTERFACE,                   // bFirstInterface
574         2,                                      // bInterfaceCount
575         0x02,                                   // bFunctionClass
576         0x02,                                   // bFunctionSubClass
577         0x01,                                   // bFunctionProtocol
578         4,                                      // iFunction
579 // - 9 bytes -
580         // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
581         9,                                      // bLength
582         4,                                      // bDescriptorType
583         CDC_STATUS_INTERFACE,                   // bInterfaceNumber
584         0,                                      // bAlternateSetting
585         1,                                      // bNumEndpoints
586         0x02,                                   // bInterfaceClass
587         0x02,                                   // bInterfaceSubClass
588         0x01,                                   // bInterfaceProtocol
589         0,                                      // iInterface
590 // - 5 bytes -
591         // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
592         5,                                      // bFunctionLength
593         0x24,                                   // bDescriptorType
594         0x00,                                   // bDescriptorSubtype
595         0x10, 0x01,                             // bcdCDC
596 // - 5 bytes -
597         // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
598         5,                                      // bFunctionLength
599         0x24,                                   // bDescriptorType
600         0x01,                                   // bDescriptorSubtype
601         0x01,                                   // bmCapabilities
602         1,                                      // bDataInterface
603 // - 4 bytes -
604         // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
605         4,                                      // bFunctionLength
606         0x24,                                   // bDescriptorType
607         0x02,                                   // bDescriptorSubtype
608         0x06,                                   // bmCapabilities
609 // - 5 bytes -
610         // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
611         5,                                      // bFunctionLength
612         0x24,                                   // bDescriptorType
613         0x06,                                   // bDescriptorSubtype
614         CDC_STATUS_INTERFACE,                   // bMasterInterface
615         CDC_DATA_INTERFACE,                     // bSlaveInterface0
616 // - 7 bytes -
617         // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
618         7,                                      // bLength
619         5,                                      // bDescriptorType
620         CDC_ACM_ENDPOINT | 0x80,                // bEndpointAddress
621         0x03,                                   // bmAttributes (0x03=intr)
622         CDC_ACM_SIZE, 0,                        // wMaxPacketSize
623         64,                                     // bInterval
624 // - 9 bytes -
625         // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
626         9,                                      // bLength
627         4,                                      // bDescriptorType
628         CDC_DATA_INTERFACE,                     // bInterfaceNumber
629         0,                                      // bAlternateSetting
630         2,                                      // bNumEndpoints
631         0x0A,                                   // bInterfaceClass
632         0x00,                                   // bInterfaceSubClass
633         0x00,                                   // bInterfaceProtocol
634         0,                                      // iInterface
635 // - 7 bytes -
636         // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
637         7,                                      // bLength
638         5,                                      // bDescriptorType
639         CDC_RX_ENDPOINT,                        // bEndpointAddress
640         0x02,                                   // bmAttributes (0x02=bulk)
641         CDC_RX_SIZE, 0,                         // wMaxPacketSize
642         0,                                      // bInterval
643 // - 7 bytes -
644         // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
645         7,                                      // bLength
646         5,                                      // bDescriptorType
647         CDC_TX_ENDPOINT | 0x80,                 // bEndpointAddress
648         0x02,                                   // bmAttributes (0x02=bulk)
649         CDC_TX_SIZE, 0,                         // wMaxPacketSize
650         0,                                      // bInterval
651 };
652
653
654 // Configuration Endpoint (0) Descriptor
655 struct usb_string_descriptor_struct {
656         uint8_t bLength;
657         uint8_t bDescriptorType;
658         int16_t wString[];
659 };
660 static const struct usb_string_descriptor_struct PROGMEM string0 = {
661         4,
662         3,
663         {0x0409}
664 };
665 static const struct usb_string_descriptor_struct PROGMEM string1 = {
666         sizeof(STR_MANUFACTURER),
667         3,
668         STR_MANUFACTURER
669 };
670 static const struct usb_string_descriptor_struct PROGMEM string2 = {
671         sizeof(STR_PRODUCT),
672         3,
673         STR_PRODUCT
674 };
675 static const struct usb_string_descriptor_struct PROGMEM string3 = {
676         sizeof(STR_SERIAL),
677         3,
678         STR_SERIAL
679 };
680
681 // This table defines which descriptor data is sent for each specific
682 // request from the host (in wValue and wIndex).
683 static const struct descriptor_list_struct {
684         uint16_t        wValue;
685         uint16_t        wIndex;
686         const uint8_t   *addr;
687         uint8_t         length;
688 } PROGMEM descriptor_list[] = {
689         {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
690         {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
691         {0x0600, 0x0000, device_qualifier_descriptor, sizeof(device_qualifier_descriptor)},
692         {0x0A00, 0x0000, usb_debug_descriptor, sizeof(usb_debug_descriptor)},
693         {0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)},
694         {0x2100, KEYBOARD_INTERFACE, config1_descriptor + KEYBOARD_HID_DESC_OFFSET, 9},
695         {0x2200, KEYBOARD_NKRO_INTERFACE, keyboard_nkro_hid_report_desc, sizeof(keyboard_nkro_hid_report_desc)},
696         {0x2100, KEYBOARD_NKRO_INTERFACE, config1_descriptor + KEYBOARD_NKRO_HID_DESC_OFFSET, 9},
697         {0x0300, 0x0000, (const uint8_t *)&string0, 4},
698         {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
699         {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)},
700         {0x0303, 0x0409, (const uint8_t *)&string3, sizeof(STR_SERIAL)}
701 };
702 #define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
703
704
705
706 #endif // usb_keyboard_serial_h__
707