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add horizontal mouse wheel
[tmk_keyboard.git] / usb.c
1 /* USB Keyboard Plus Debug Channel Example for Teensy USB Development Board
2 * http://www.pjrc.com/teensy/usb_keyboard.html
3 * Copyright (c) 2009 PJRC.COM, LLC
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 #include <avr/io.h>
25 #include <avr/pgmspace.h>
26 #include <avr/interrupt.h>
27 #include "usb.h"
28 #include "usb_keyboard.h"
29 #include "usb_mouse.h"
30 #include "usb_debug.h"
31 #include "print.h"
32
33
34 /**************************************************************************
35 *
36 * Configurable Options
37 *
38 **************************************************************************/
39
40 // You can change these to give your code its own name.
41 #define STR_MANUFACTURER L"t.m.k."
42 #define STR_PRODUCT L"t.m.k. keyboard"
43
44
45 // Mac OS-X and Linux automatically load the correct drivers. On
46 // Windows, even though the driver is supplied by Microsoft, an
47 // INF file is needed to load the driver. These numbers need to
48 // match the INF file.
49 #define VENDOR_ID 0xFEED
50 #define PRODUCT_ID 0xCAFE
51
52
53 // USB devices are supposed to implment a halt feature, which is
54 // rarely (if ever) used. If you comment this line out, the halt
55 // code will be removed, saving 102 bytes of space (gcc 4.3.0).
56 // This is not strictly USB compliant, but works with all major
57 // operating systems.
58 #define SUPPORT_ENDPOINT_HALT
59
60
61
62 /**************************************************************************
63 *
64 * Endpoint Buffer Configuration
65 *
66 **************************************************************************/
67
68 #define ENDPOINT0_SIZE 32
69
70 // 0:control endpoint is enabled automatically by controller.
71 static const uint8_t PROGMEM endpoint_config_table[] = {
72 // enable, UECFG0X(type, direction), UECFG1X(size, bank, allocation)
73 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_SIZE) | KEYBOARD_BUFFER, // 1
74 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(MOUSE_SIZE) | MOUSE_BUFFER, // 2
75 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(DEBUG_TX_SIZE) | DEBUG_TX_BUFFER, // 3
76 0, // 4
77 0, // 5
78 0, // 6
79 };
80
81
82 /**************************************************************************
83 *
84 * Descriptor Data
85 *
86 **************************************************************************/
87
88 // Descriptors are the data that your computer reads when it auto-detects
89 // this USB device (called "enumeration" in USB lingo). The most commonly
90 // changed items are editable at the top of this file. Changing things
91 // in here should only be done by those who've read chapter 9 of the USB
92 // spec and relevant portions of any USB class specifications!
93
94
95 static uint8_t PROGMEM device_descriptor[] = {
96 18, // bLength
97 1, // bDescriptorType
98 0x00, 0x02, // bcdUSB
99 0, // bDeviceClass
100 0, // bDeviceSubClass
101 0, // bDeviceProtocol
102 ENDPOINT0_SIZE, // bMaxPacketSize0
103 LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
104 LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
105 0x00, 0x01, // bcdDevice
106 1, // iManufacturer
107 2, // iProduct
108 0, // iSerialNumber
109 1 // bNumConfigurations
110 };
111
112 // Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
113 static uint8_t PROGMEM keyboard_hid_report_desc[] = {
114 0x05, 0x01, // Usage Page (Generic Desktop),
115 0x09, 0x06, // Usage (Keyboard),
116 0xA1, 0x01, // Collection (Application),
117 0x75, 0x01, // Report Size (1),
118 0x95, 0x08, // Report Count (8),
119 0x05, 0x07, // Usage Page (Key Codes),
120 0x19, 0xE0, // Usage Minimum (224),
121 0x29, 0xE7, // Usage Maximum (231),
122 0x15, 0x00, // Logical Minimum (0),
123 0x25, 0x01, // Logical Maximum (1),
124 0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
125 0x95, 0x01, // Report Count (1),
126 0x75, 0x08, // Report Size (8),
127 0x81, 0x03, // Input (Constant), ;Reserved byte
128 0x95, 0x05, // Report Count (5),
129 0x75, 0x01, // Report Size (1),
130 0x05, 0x08, // Usage Page (LEDs),
131 0x19, 0x01, // Usage Minimum (1),
132 0x29, 0x05, // Usage Maximum (5),
133 0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
134 0x95, 0x01, // Report Count (1),
135 0x75, 0x03, // Report Size (3),
136 0x91, 0x03, // Output (Constant), ;LED report padding
137 0x95, 0x06, // Report Count (6),
138 0x75, 0x08, // Report Size (8),
139 0x15, 0x00, // Logical Minimum (0),
140 0x25, 0x68, // Logical Maximum(104),
141 0x05, 0x07, // Usage Page (Key Codes),
142 0x19, 0x00, // Usage Minimum (0),
143 0x29, 0x68, // Usage Maximum (104),
144 0x81, 0x00, // Input (Data, Array),
145 0xc0 // End Collection
146 };
147
148 // Mouse Protocol 1, HID 1.11 spec, Appendix B, page 59-60, with wheel extension
149 // http://www.microchip.com/forums/tm.aspx?high=&m=391435&mpage=1#391521
150 // http://www.keil.com/forum/15671/
151 // http://www.microsoft.com/whdc/device/input/wheel.mspx
152 static uint8_t PROGMEM mouse_hid_report_desc[] = {
153 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
154 0x09, 0x02, // USAGE (Mouse)
155 0xa1, 0x01, // COLLECTION (Application)
156 0x09, 0x02, // USAGE (Mouse)
157 0xa1, 0x02, // COLLECTION (Logical)
158 0x09, 0x01, // USAGE (Pointer)
159 0xa1, 0x00, // COLLECTION (Physical)
160 // ------------------------------ Buttons
161 0x05, 0x09, // USAGE_PAGE (Button)
162 0x19, 0x01, // USAGE_MINIMUM (Button 1)
163 0x29, 0x05, // USAGE_MAXIMUM (Button 5)
164 0x15, 0x00, // LOGICAL_MINIMUM (0)
165 0x25, 0x01, // LOGICAL_MAXIMUM (1)
166 0x75, 0x01, // REPORT_SIZE (1)
167 0x95, 0x05, // REPORT_COUNT (5)
168 0x81, 0x02, // INPUT (Data,Var,Abs)
169 // ------------------------------ Padding
170 0x75, 0x03, // REPORT_SIZE (3)
171 0x95, 0x01, // REPORT_COUNT (1)
172 0x81, 0x03, // INPUT (Cnst,Var,Abs)
173 // ------------------------------ X,Y position
174 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
175 0x09, 0x30, // USAGE (X)
176 0x09, 0x31, // USAGE (Y)
177 0x15, 0x81, // LOGICAL_MINIMUM (-127)
178 0x25, 0x7f, // LOGICAL_MAXIMUM (127)
179 0x75, 0x08, // REPORT_SIZE (8)
180 0x95, 0x02, // REPORT_COUNT (2)
181 0x81, 0x06, // INPUT (Data,Var,Rel)
182 0xa1, 0x02, // COLLECTION (Logical)
183 // ------------------------------ Vertical wheel res multiplier
184 0x09, 0x48, // USAGE (Resolution Multiplier)
185 0x15, 0x00, // LOGICAL_MINIMUM (0)
186 0x25, 0x01, // LOGICAL_MAXIMUM (1)
187 0x35, 0x01, // PHYSICAL_MINIMUM (1)
188 0x45, 0x04, // PHYSICAL_MAXIMUM (4)
189 0x75, 0x02, // REPORT_SIZE (2)
190 0x95, 0x01, // REPORT_COUNT (1)
191 0xa4, // PUSH
192 0xb1, 0x02, // FEATURE (Data,Var,Abs)
193 // ------------------------------ Vertical wheel
194 0x09, 0x38, // USAGE (Wheel)
195 0x15, 0x81, // LOGICAL_MINIMUM (-127)
196 0x25, 0x7f, // LOGICAL_MAXIMUM (127)
197 0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
198 0x45, 0x00, // PHYSICAL_MAXIMUM (0)
199 0x75, 0x08, // REPORT_SIZE (8)
200 0x81, 0x06, // INPUT (Data,Var,Rel)
201 0xc0, // END_COLLECTION
202 0xa1, 0x02, // COLLECTION (Logical)
203 // ------------------------------ Horizontal wheel res multiplier
204 0x09, 0x48, // USAGE (Resolution Multiplier)
205 0xb4, // POP
206 0xb1, 0x02, // FEATURE (Data,Var,Abs)
207 // ------------------------------ Padding for Feature report
208 0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
209 0x45, 0x00, // PHYSICAL_MAXIMUM (0)
210 0x75, 0x04, // REPORT_SIZE (4)
211 0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
212 // ------------------------------ Horizontal wheel
213 0x05, 0x0c, // USAGE_PAGE (Consumer Devices)
214 0x0a, 0x38, 0x02, // USAGE (AC Pan)
215 0x15, 0x81, // LOGICAL_MINIMUM (-127)
216 0x25, 0x7f, // LOGICAL_MAXIMUM (127)
217 0x75, 0x08, // REPORT_SIZE (8)
218 0x81, 0x06, // INPUT (Data,Var,Rel)
219 0xc0, // END_COLLECTION
220 0xc0, // END_COLLECTION
221 0xc0, // END_COLLECTION
222 0xc0 // END_COLLECTION
223 };
224
225 static uint8_t PROGMEM debug_hid_report_desc[] = {
226 0x06, 0x31, 0xFF, // Usage Page 0xFF31 (vendor defined)
227 0x09, 0x74, // Usage 0x74
228 0xA1, 0x53, // Collection 0x53
229 0x75, 0x08, // report size = 8 bits
230 0x15, 0x00, // logical minimum = 0
231 0x26, 0xFF, 0x00, // logical maximum = 255
232 0x95, DEBUG_TX_SIZE, // report count
233 0x09, 0x75, // usage
234 0x81, 0x02, // Input (array)
235 0xC0 // end collection
236 };
237
238 #define CONFIG1_DESC_SIZE (9+(9+9+7)+(9+9+7)+(9+9+7))
239 #define KEYBOARD_HID_DESC_OFFSET (9+9)
240 #define MOUSE_HID_DESC_OFFSET (9+(9+9+7)+9)
241 #define DEBUG_HID_DESC_OFFSET (9+(9+9+7)+(9+9+7)+9)
242 static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
243 // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
244 9, // bLength;
245 2, // bDescriptorType;
246 LSB(CONFIG1_DESC_SIZE), // wTotalLength
247 MSB(CONFIG1_DESC_SIZE),
248 3, // bNumInterfaces
249 1, // bConfigurationValue
250 0, // iConfiguration
251 0xC0, // bmAttributes
252 50, // bMaxPower
253
254 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
255 9, // bLength
256 4, // bDescriptorType
257 KEYBOARD_INTERFACE, // bInterfaceNumber
258 0, // bAlternateSetting
259 1, // bNumEndpoints
260 0x03, // bInterfaceClass (0x03 = HID)
261 0x01, // bInterfaceSubClass (0x01 = Boot)
262 0x01, // bInterfaceProtocol (0x01 = Keyboard)
263 0, // iInterface
264 // HID descriptor, HID 1.11 spec, section 6.2.1
265 9, // bLength
266 0x21, // bDescriptorType
267 0x11, 0x01, // bcdHID
268 0, // bCountryCode
269 1, // bNumDescriptors
270 0x22, // bDescriptorType
271 sizeof(keyboard_hid_report_desc), // wDescriptorLength
272 0,
273 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
274 7, // bLength
275 5, // bDescriptorType
276 KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress
277 0x03, // bmAttributes (0x03=intr)
278 KEYBOARD_SIZE, 0, // wMaxPacketSize
279 1, // bInterval
280
281 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
282 9, // bLength
283 4, // bDescriptorType
284 MOUSE_INTERFACE, // bInterfaceNumber
285 0, // bAlternateSetting
286 1, // bNumEndpoints
287 0x03, // bInterfaceClass (0x03 = HID)
288 0x01, // bInterfaceSubClass (0x01 = Boot)
289 0x02, // bInterfaceProtocol (0x02 = Mouse)
290 0, // iInterface
291 // HID descriptor, HID 1.11 spec, section 6.2.1
292 9, // bLength
293 0x21, // bDescriptorType
294 0x11, 0x01, // bcdHID
295 0, // bCountryCode
296 1, // bNumDescriptors
297 0x22, // bDescriptorType
298 sizeof(mouse_hid_report_desc), // wDescriptorLength
299 0,
300 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
301 7, // bLength
302 5, // bDescriptorType
303 MOUSE_ENDPOINT | 0x80, // bEndpointAddress
304 0x03, // bmAttributes (0x03=intr)
305 MOUSE_SIZE, 0, // wMaxPacketSize
306 1, // bInterval
307
308 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
309 9, // bLength
310 4, // bDescriptorType
311 DEBUG_INTERFACE, // bInterfaceNumber
312 0, // bAlternateSetting
313 1, // bNumEndpoints
314 0x03, // bInterfaceClass (0x03 = HID)
315 0x00, // bInterfaceSubClass
316 0x00, // bInterfaceProtocol
317 0, // iInterface
318 // HID descriptor, HID 1.11 spec, section 6.2.1
319 9, // bLength
320 0x21, // bDescriptorType
321 0x11, 0x01, // bcdHID
322 0, // bCountryCode
323 1, // bNumDescriptors
324 0x22, // bDescriptorType
325 sizeof(debug_hid_report_desc), // wDescriptorLength
326 0,
327 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
328 7, // bLength
329 5, // bDescriptorType
330 DEBUG_TX_ENDPOINT | 0x80, // bEndpointAddress
331 0x03, // bmAttributes (0x03=intr)
332 DEBUG_TX_SIZE, 0, // wMaxPacketSize
333 1 // bInterval
334 };
335
336 // If you're desperate for a little extra code memory, these strings
337 // can be completely removed if iManufacturer, iProduct, iSerialNumber
338 // in the device desciptor are changed to zeros.
339 struct usb_string_descriptor_struct {
340 uint8_t bLength;
341 uint8_t bDescriptorType;
342 int16_t wString[];
343 };
344 static struct usb_string_descriptor_struct PROGMEM string0 = {
345 4,
346 3,
347 {0x0409}
348 };
349 static struct usb_string_descriptor_struct PROGMEM string1 = {
350 sizeof(STR_MANUFACTURER),
351 3,
352 STR_MANUFACTURER
353 };
354 static struct usb_string_descriptor_struct PROGMEM string2 = {
355 sizeof(STR_PRODUCT),
356 3,
357 STR_PRODUCT
358 };
359
360 // This table defines which descriptor data is sent for each specific
361 // request from the host (in wValue and wIndex).
362 static struct descriptor_list_struct {
363 uint16_t wValue; // descriptor type
364 uint16_t wIndex;
365 const uint8_t *addr;
366 uint8_t length;
367 } PROGMEM descriptor_list[] = {
368 // DEVICE descriptor
369 {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
370 // CONFIGURATION descriptor
371 {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
372 // HID REPORT
373 {0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)},
374 {0x2100, KEYBOARD_INTERFACE, config1_descriptor+KEYBOARD_HID_DESC_OFFSET, 9},
375 // HID REPORT
376 {0x2200, MOUSE_INTERFACE, mouse_hid_report_desc, sizeof(mouse_hid_report_desc)},
377 {0x2100, MOUSE_INTERFACE, config1_descriptor+MOUSE_HID_DESC_OFFSET, 9},
378 // HID REPORT
379 {0x2200, DEBUG_INTERFACE, debug_hid_report_desc, sizeof(debug_hid_report_desc)},
380 {0x2100, DEBUG_INTERFACE, config1_descriptor+DEBUG_HID_DESC_OFFSET, 9},
381 // STRING descriptor
382 {0x0300, 0x0000, (const uint8_t *)&string0, 4},
383 {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
384 {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)}
385 };
386 #define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
387
388
389 /**************************************************************************
390 *
391 * Variables - these are the only non-stack RAM usage
392 *
393 **************************************************************************/
394
395 // zero when we are not configured, non-zero when enumerated
396 static volatile uint8_t usb_configuration=0;
397
398
399 /**************************************************************************
400 *
401 * Public Functions - these are the API intended for the user
402 *
403 **************************************************************************/
404
405
406 // initialize USB
407 void usb_init(void)
408 {
409 HW_CONFIG();
410 USB_FREEZE(); // enable USB
411 PLL_CONFIG(); // config PLL
412 while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock
413 USB_CONFIG(); // start USB clock
414 UDCON = 0; // enable attach resistor
415 usb_configuration = 0;
416 UDIEN = (1<<EORSTE)|(1<<SOFE);
417 sei();
418 }
419
420 // return 0 if the USB is not configured, or the configuration
421 // number selected by the HOST
422 uint8_t usb_configured(void)
423 {
424 return usb_configuration;
425 }
426
427
428
429 /**************************************************************************
430 *
431 * Private Functions - not intended for general user consumption....
432 *
433 **************************************************************************/
434
435
436
437 // USB Device Interrupt - handle all device-level events
438 // the transmit buffer flushing is triggered by the start of frame
439 //
440 ISR(USB_GEN_vect)
441 {
442 uint8_t intbits, t, i;
443 static uint8_t div4=0;
444
445 intbits = UDINT;
446 UDINT = 0;
447 if (intbits & (1<<EORSTI)) {
448 UENUM = 0;
449 UECONX = 1;
450 UECFG0X = EP_TYPE_CONTROL;
451 UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER;
452 UEIENX = (1<<RXSTPE);
453 usb_configuration = 0;
454 }
455 if ((intbits & (1<<SOFI)) && usb_configuration) {
456 t = debug_flush_timer;
457 if (t) {
458 debug_flush_timer = -- t;
459 if (!t) {
460 UENUM = DEBUG_TX_ENDPOINT;
461 while ((UEINTX & (1<<RWAL))) {
462 UEDATX = 0;
463 }
464 UEINTX = 0x3A;
465 }
466 }
467 if (keyboard_idle_config && (++div4 & 3) == 0) {
468 UENUM = KEYBOARD_ENDPOINT;
469 if (UEINTX & (1<<RWAL)) {
470 keyboard_idle_count++;
471 if (keyboard_idle_count == keyboard_idle_config) {
472 keyboard_idle_count = 0;
473 UEDATX = keyboard_modifier_keys;
474 UEDATX = 0;
475 for (i=0; i<6; i++) {
476 UEDATX = keyboard_keys[i];
477 }
478 UEINTX = 0x3A;
479 }
480 }
481 }
482 }
483 }
484
485
486
487 // Misc functions to wait for ready and send/receive packets
488 static inline void usb_wait_in_ready(void)
489 {
490 while (!(UEINTX & (1<<TXINI))) ;
491 }
492 static inline void usb_send_in(void)
493 {
494 UEINTX = ~(1<<TXINI);
495 }
496 static inline void usb_wait_receive_out(void)
497 {
498 while (!(UEINTX & (1<<RXOUTI))) ;
499 }
500 static inline void usb_ack_out(void)
501 {
502 UEINTX = ~(1<<RXOUTI);
503 }
504
505
506
507 // USB Endpoint Interrupt - endpoint 0 is handled here. The
508 // other endpoints are manipulated by the user-callable
509 // functions, and the start-of-frame interrupt.
510 //
511 ISR(USB_COM_vect)
512 {
513 uint8_t intbits;
514 const uint8_t *list;
515 const uint8_t *cfg;
516 uint8_t i, n, len, en;
517 uint8_t bmRequestType;
518 uint8_t bRequest;
519 uint16_t wValue;
520 uint16_t wIndex;
521 uint16_t wLength;
522 uint16_t desc_val;
523 const uint8_t *desc_addr;
524 uint8_t desc_length;
525
526 UENUM = 0;
527 intbits = UEINTX;
528 if (intbits & (1<<RXSTPI)) {
529 bmRequestType = UEDATX;
530 bRequest = UEDATX;
531 wValue = UEDATX;
532 wValue |= (UEDATX << 8);
533 wIndex = UEDATX;
534 wIndex |= (UEDATX << 8);
535 wLength = UEDATX;
536 wLength |= (UEDATX << 8);
537 UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
538 if (bRequest == GET_DESCRIPTOR) {
539 list = (const uint8_t *)descriptor_list;
540 for (i=0; ; i++) {
541 if (i >= NUM_DESC_LIST) {
542 UECONX = (1<<STALLRQ)|(1<<EPEN); //stall
543 return;
544 }
545 desc_val = pgm_read_word(list);
546 if (desc_val != wValue) {
547 list += sizeof(struct descriptor_list_struct);
548 continue;
549 }
550 list += 2;
551 desc_val = pgm_read_word(list);
552 if (desc_val != wIndex) {
553 list += sizeof(struct descriptor_list_struct)-2;
554 continue;
555 }
556 list += 2;
557 desc_addr = (const uint8_t *)pgm_read_word(list);
558 list += 2;
559 desc_length = pgm_read_byte(list);
560 break;
561 }
562 len = (wLength < 256) ? wLength : 255;
563 if (len > desc_length) len = desc_length;
564 do {
565 // wait for host ready for IN packet
566 do {
567 i = UEINTX;
568 } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
569 if (i & (1<<RXOUTI)) return; // abort
570 // send IN packet
571 n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
572 for (i = n; i; i--) {
573 UEDATX = pgm_read_byte(desc_addr++);
574 }
575 len -= n;
576 usb_send_in();
577 } while (len || n == ENDPOINT0_SIZE);
578 return;
579 }
580 if (bRequest == SET_ADDRESS) {
581 usb_send_in();
582 usb_wait_in_ready();
583 UDADDR = wValue | (1<<ADDEN);
584 return;
585 }
586 if (bRequest == SET_CONFIGURATION && bmRequestType == 0) {
587 usb_configuration = wValue;
588 usb_send_in();
589 cfg = endpoint_config_table;
590 for (i=1; i<=6; i++) {
591 UENUM = i;
592 en = pgm_read_byte(cfg++);
593 UECONX = en;
594 if (en) {
595 UECFG0X = pgm_read_byte(cfg++);
596 UECFG1X = pgm_read_byte(cfg++);
597 }
598 }
599 UERST = 0x7E;
600 UERST = 0;
601 return;
602 }
603 if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) {
604 usb_wait_in_ready();
605 UEDATX = usb_configuration;
606 usb_send_in();
607 return;
608 }
609
610 if (bRequest == GET_STATUS) {
611 usb_wait_in_ready();
612 i = 0;
613 #ifdef SUPPORT_ENDPOINT_HALT
614 if (bmRequestType == 0x82) {
615 UENUM = wIndex;
616 if (UECONX & (1<<STALLRQ)) i = 1;
617 UENUM = 0;
618 }
619 #endif
620 UEDATX = i;
621 UEDATX = 0;
622 usb_send_in();
623 return;
624 }
625 #ifdef SUPPORT_ENDPOINT_HALT
626 if ((bRequest == CLEAR_FEATURE || bRequest == SET_FEATURE)
627 && bmRequestType == 0x02 && wValue == 0) {
628 i = wIndex & 0x7F;
629 if (i >= 1 && i <= MAX_ENDPOINT) {
630 usb_send_in();
631 UENUM = i;
632 if (bRequest == SET_FEATURE) {
633 UECONX = (1<<STALLRQ)|(1<<EPEN);
634 } else {
635 UECONX = (1<<STALLRQC)|(1<<RSTDT)|(1<<EPEN);
636 UERST = (1 << i);
637 UERST = 0;
638 }
639 return;
640 }
641 }
642 #endif
643 if (wIndex == KEYBOARD_INTERFACE) {
644 if (bmRequestType == 0xA1) {
645 if (bRequest == HID_GET_REPORT) {
646 usb_wait_in_ready();
647 UEDATX = keyboard_modifier_keys;
648 UEDATX = 0;
649 for (i=0; i<6; i++) {
650 UEDATX = keyboard_keys[i];
651 }
652 usb_send_in();
653 return;
654 }
655 if (bRequest == HID_GET_IDLE) {
656 usb_wait_in_ready();
657 UEDATX = keyboard_idle_config;
658 usb_send_in();
659 return;
660 }
661 if (bRequest == HID_GET_PROTOCOL) {
662 usb_wait_in_ready();
663 UEDATX = keyboard_protocol;
664 usb_send_in();
665 return;
666 }
667 }
668 if (bmRequestType == 0x21) {
669 if (bRequest == HID_SET_REPORT) {
670 usb_wait_receive_out();
671 keyboard_leds = UEDATX;
672 usb_ack_out();
673 usb_send_in();
674 return;
675 }
676 if (bRequest == HID_SET_IDLE) {
677 keyboard_idle_config = (wValue >> 8);
678 keyboard_idle_count = 0;
679 //usb_wait_in_ready();
680 usb_send_in();
681 return;
682 }
683 if (bRequest == HID_SET_PROTOCOL) {
684 keyboard_protocol = wValue;
685 //usb_wait_in_ready();
686 usb_send_in();
687 return;
688 }
689 }
690 }
691 if (wIndex == MOUSE_INTERFACE) {
692 if (bmRequestType == 0xA1) {
693 if (bRequest == HID_GET_REPORT) {
694 if (wValue == HID_REPORT_INPUT) {
695 usb_wait_in_ready();
696 UEDATX = mouse_buttons;
697 UEDATX = 0;
698 UEDATX = 0;
699 UEDATX = 0;
700 usb_send_in();
701 return;
702 }
703 if (wValue == HID_REPORT_FEATURE) {
704 usb_wait_in_ready();
705 UEDATX = 0x05;
706 usb_send_in();
707 return;
708 }
709 }
710 if (bRequest == HID_GET_PROTOCOL) {
711 usb_wait_in_ready();
712 UEDATX = mouse_protocol;
713 usb_send_in();
714 return;
715 }
716 }
717 if (bmRequestType == 0x21) {
718 if (bRequest == HID_SET_PROTOCOL) {
719 mouse_protocol = wValue;
720 usb_send_in();
721 return;
722 }
723 }
724 }
725 if (wIndex == DEBUG_INTERFACE) {
726 if (bRequest == HID_GET_REPORT && bmRequestType == 0xA1) {
727 len = wLength;
728 do {
729 // wait for host ready for IN packet
730 do {
731 i = UEINTX;
732 } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
733 if (i & (1<<RXOUTI)) return; // abort
734 // send IN packet
735 n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
736 for (i = n; i; i--) {
737 UEDATX = 0;
738 }
739 len -= n;
740 usb_send_in();
741 } while (len || n == ENDPOINT0_SIZE);
742 return;
743 }
744 }
745 }
746 UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
747 }
custom keymap for my minivan; forked from http://github.com/evangs/tmk_keyboard
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