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revise Fn key processing.
[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 #include "util.h"
33
34
35 /**************************************************************************
36 *
37 * Configurable Options
38 *
39 **************************************************************************/
40
41 // You can change these to give your code its own name.
42 #ifndef MANUFACTURER
43 # define STR_MANUFACTURER L"t.m.k."
44 #else
45 # define STR_MANUFACTURER LSTR(MANUFACTURER)
46 #endif
47 #ifndef PRODUCT
48 # define STR_PRODUCT L"t.m.k. keyboard"
49 #else
50 # define STR_PRODUCT LSTR(PRODUCT)
51 #endif
52
53
54 // Mac OS-X and Linux automatically load the correct drivers. On
55 // Windows, even though the driver is supplied by Microsoft, an
56 // INF file is needed to load the driver. These numbers need to
57 // match the INF file.
58 #ifndef VENDOR_ID
59 # define VENDOR_ID 0xFEED
60 #endif
61
62 #ifndef PRODUCT_ID
63 # define PRODUCT_ID 0xBABE
64 #endif
65
66
67 // USB devices are supposed to implment a halt feature, which is
68 // rarely (if ever) used. If you comment this line out, the halt
69 // code will be removed, saving 102 bytes of space (gcc 4.3.0).
70 // This is not strictly USB compliant, but works with all major
71 // operating systems.
72 #define SUPPORT_ENDPOINT_HALT
73
74
75
76 /**************************************************************************
77 *
78 * Endpoint Buffer Configuration
79 *
80 **************************************************************************/
81
82 #define ENDPOINT0_SIZE 32
83
84 // 0:control endpoint is enabled automatically by controller.
85 static const uint8_t PROGMEM endpoint_config_table[] = {
86 // enable, UECFG0X(type, direction), UECFG1X(size, bank, allocation)
87 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_SIZE) | KEYBOARD_BUFFER, // 1
88 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(MOUSE_SIZE) | MOUSE_BUFFER, // 2
89 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(DEBUG_TX_SIZE) | DEBUG_TX_BUFFER, // 3
90 0, // 4
91 0, // 5
92 0, // 6
93 };
94
95
96 /**************************************************************************
97 *
98 * Descriptor Data
99 *
100 **************************************************************************/
101
102 // Descriptors are the data that your computer reads when it auto-detects
103 // this USB device (called "enumeration" in USB lingo). The most commonly
104 // changed items are editable at the top of this file. Changing things
105 // in here should only be done by those who've read chapter 9 of the USB
106 // spec and relevant portions of any USB class specifications!
107
108
109 static uint8_t PROGMEM device_descriptor[] = {
110 18, // bLength
111 1, // bDescriptorType
112 0x00, 0x02, // bcdUSB
113 0, // bDeviceClass
114 0, // bDeviceSubClass
115 0, // bDeviceProtocol
116 ENDPOINT0_SIZE, // bMaxPacketSize0
117 LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
118 LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
119 0x00, 0x01, // bcdDevice
120 1, // iManufacturer
121 2, // iProduct
122 0, // iSerialNumber
123 1 // bNumConfigurations
124 };
125
126 // Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
127 static uint8_t PROGMEM keyboard_hid_report_desc[] = {
128 0x05, 0x01, // Usage Page (Generic Desktop),
129 0x09, 0x06, // Usage (Keyboard),
130 0xA1, 0x01, // Collection (Application),
131 0x75, 0x01, // Report Size (1),
132 0x95, 0x08, // Report Count (8),
133 0x05, 0x07, // Usage Page (Key Codes),
134 0x19, 0xE0, // Usage Minimum (224),
135 0x29, 0xE7, // Usage Maximum (231),
136 0x15, 0x00, // Logical Minimum (0),
137 0x25, 0x01, // Logical Maximum (1),
138 0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
139 0x95, 0x01, // Report Count (1),
140 0x75, 0x08, // Report Size (8),
141 0x81, 0x03, // Input (Constant), ;Reserved byte
142 0x95, 0x05, // Report Count (5),
143 0x75, 0x01, // Report Size (1),
144 0x05, 0x08, // Usage Page (LEDs),
145 0x19, 0x01, // Usage Minimum (1),
146 0x29, 0x05, // Usage Maximum (5),
147 0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
148 0x95, 0x01, // Report Count (1),
149 0x75, 0x03, // Report Size (3),
150 0x91, 0x03, // Output (Constant), ;LED report padding
151 0x95, 0x06, // Report Count (6),
152 0x75, 0x08, // Report Size (8),
153 0x15, 0x00, // Logical Minimum (0),
154 0x25, 0x68, // Logical Maximum(104),
155 0x05, 0x07, // Usage Page (Key Codes),
156 0x19, 0x00, // Usage Minimum (0),
157 0x29, 0x68, // Usage Maximum (104),
158 0x81, 0x00, // Input (Data, Array),
159 0xc0 // End Collection
160 };
161
162 // Mouse Protocol 1, HID 1.11 spec, Appendix B, page 59-60, with wheel extension
163 // http://www.microchip.com/forums/tm.aspx?high=&m=391435&mpage=1#391521
164 // http://www.keil.com/forum/15671/
165 // http://www.microsoft.com/whdc/device/input/wheel.mspx
166 static uint8_t PROGMEM mouse_hid_report_desc[] = {
167 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
168 0x09, 0x02, // USAGE (Mouse)
169 0xa1, 0x01, // COLLECTION (Application)
170 0x09, 0x02, // USAGE (Mouse)
171 0xa1, 0x02, // COLLECTION (Logical)
172 0x09, 0x01, // USAGE (Pointer)
173 0xa1, 0x00, // COLLECTION (Physical)
174 // ------------------------------ Buttons
175 0x05, 0x09, // USAGE_PAGE (Button)
176 0x19, 0x01, // USAGE_MINIMUM (Button 1)
177 0x29, 0x05, // USAGE_MAXIMUM (Button 5)
178 0x15, 0x00, // LOGICAL_MINIMUM (0)
179 0x25, 0x01, // LOGICAL_MAXIMUM (1)
180 0x75, 0x01, // REPORT_SIZE (1)
181 0x95, 0x05, // REPORT_COUNT (5)
182 0x81, 0x02, // INPUT (Data,Var,Abs)
183 // ------------------------------ Padding
184 0x75, 0x03, // REPORT_SIZE (3)
185 0x95, 0x01, // REPORT_COUNT (1)
186 0x81, 0x03, // INPUT (Cnst,Var,Abs)
187 // ------------------------------ X,Y position
188 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
189 0x09, 0x30, // USAGE (X)
190 0x09, 0x31, // USAGE (Y)
191 0x15, 0x81, // LOGICAL_MINIMUM (-127)
192 0x25, 0x7f, // LOGICAL_MAXIMUM (127)
193 0x75, 0x08, // REPORT_SIZE (8)
194 0x95, 0x02, // REPORT_COUNT (2)
195 0x81, 0x06, // INPUT (Data,Var,Rel)
196 0xa1, 0x02, // COLLECTION (Logical)
197 // ------------------------------ Vertical wheel res multiplier
198 0x09, 0x48, // USAGE (Resolution Multiplier)
199 0x15, 0x00, // LOGICAL_MINIMUM (0)
200 0x25, 0x01, // LOGICAL_MAXIMUM (1)
201 0x35, 0x01, // PHYSICAL_MINIMUM (1)
202 0x45, 0x04, // PHYSICAL_MAXIMUM (4)
203 0x75, 0x02, // REPORT_SIZE (2)
204 0x95, 0x01, // REPORT_COUNT (1)
205 0xa4, // PUSH
206 0xb1, 0x02, // FEATURE (Data,Var,Abs)
207 // ------------------------------ Vertical wheel
208 0x09, 0x38, // USAGE (Wheel)
209 0x15, 0x81, // LOGICAL_MINIMUM (-127)
210 0x25, 0x7f, // LOGICAL_MAXIMUM (127)
211 0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
212 0x45, 0x00, // PHYSICAL_MAXIMUM (0)
213 0x75, 0x08, // REPORT_SIZE (8)
214 0x81, 0x06, // INPUT (Data,Var,Rel)
215 0xc0, // END_COLLECTION
216 0xa1, 0x02, // COLLECTION (Logical)
217 // ------------------------------ Horizontal wheel res multiplier
218 0x09, 0x48, // USAGE (Resolution Multiplier)
219 0xb4, // POP
220 0xb1, 0x02, // FEATURE (Data,Var,Abs)
221 // ------------------------------ Padding for Feature report
222 0x35, 0x00, // PHYSICAL_MINIMUM (0) - reset physical
223 0x45, 0x00, // PHYSICAL_MAXIMUM (0)
224 0x75, 0x04, // REPORT_SIZE (4)
225 0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
226 // ------------------------------ Horizontal wheel
227 0x05, 0x0c, // USAGE_PAGE (Consumer Devices)
228 0x0a, 0x38, 0x02, // USAGE (AC Pan)
229 0x15, 0x81, // LOGICAL_MINIMUM (-127)
230 0x25, 0x7f, // LOGICAL_MAXIMUM (127)
231 0x75, 0x08, // REPORT_SIZE (8)
232 0x81, 0x06, // INPUT (Data,Var,Rel)
233 0xc0, // END_COLLECTION
234 0xc0, // END_COLLECTION
235 0xc0, // END_COLLECTION
236 0xc0 // END_COLLECTION
237 };
238
239 static uint8_t PROGMEM debug_hid_report_desc[] = {
240 0x06, 0x31, 0xFF, // Usage Page 0xFF31 (vendor defined)
241 0x09, 0x74, // Usage 0x74
242 0xA1, 0x53, // Collection 0x53
243 0x75, 0x08, // report size = 8 bits
244 0x15, 0x00, // logical minimum = 0
245 0x26, 0xFF, 0x00, // logical maximum = 255
246 0x95, DEBUG_TX_SIZE, // report count
247 0x09, 0x75, // usage
248 0x81, 0x02, // Input (array)
249 0xC0 // end collection
250 };
251
252 #define CONFIG1_DESC_SIZE (9+(9+9+7)+(9+9+7)+(9+9+7))
253 #define KEYBOARD_HID_DESC_OFFSET (9+9)
254 #define MOUSE_HID_DESC_OFFSET (9+(9+9+7)+9)
255 #define DEBUG_HID_DESC_OFFSET (9+(9+9+7)+(9+9+7)+9)
256 static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
257 // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
258 9, // bLength;
259 2, // bDescriptorType;
260 LSB(CONFIG1_DESC_SIZE), // wTotalLength
261 MSB(CONFIG1_DESC_SIZE),
262 3, // bNumInterfaces
263 1, // bConfigurationValue
264 0, // iConfiguration
265 0xC0, // bmAttributes
266 50, // bMaxPower
267
268 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
269 9, // bLength
270 4, // bDescriptorType
271 KEYBOARD_INTERFACE, // bInterfaceNumber
272 0, // bAlternateSetting
273 1, // bNumEndpoints
274 0x03, // bInterfaceClass (0x03 = HID)
275 0x01, // bInterfaceSubClass (0x01 = Boot)
276 0x01, // bInterfaceProtocol (0x01 = Keyboard)
277 0, // iInterface
278 // HID descriptor, HID 1.11 spec, section 6.2.1
279 9, // bLength
280 0x21, // bDescriptorType
281 0x11, 0x01, // bcdHID
282 0, // bCountryCode
283 1, // bNumDescriptors
284 0x22, // bDescriptorType
285 sizeof(keyboard_hid_report_desc), // wDescriptorLength
286 0,
287 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
288 7, // bLength
289 5, // bDescriptorType
290 KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress
291 0x03, // bmAttributes (0x03=intr)
292 KEYBOARD_SIZE, 0, // wMaxPacketSize
293 1, // bInterval
294
295 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
296 9, // bLength
297 4, // bDescriptorType
298 MOUSE_INTERFACE, // bInterfaceNumber
299 0, // bAlternateSetting
300 1, // bNumEndpoints
301 0x03, // bInterfaceClass (0x03 = HID)
302 0x01, // bInterfaceSubClass (0x01 = Boot)
303 0x02, // bInterfaceProtocol (0x02 = Mouse)
304 0, // iInterface
305 // HID descriptor, HID 1.11 spec, section 6.2.1
306 9, // bLength
307 0x21, // bDescriptorType
308 0x11, 0x01, // bcdHID
309 0, // bCountryCode
310 1, // bNumDescriptors
311 0x22, // bDescriptorType
312 sizeof(mouse_hid_report_desc), // wDescriptorLength
313 0,
314 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
315 7, // bLength
316 5, // bDescriptorType
317 MOUSE_ENDPOINT | 0x80, // bEndpointAddress
318 0x03, // bmAttributes (0x03=intr)
319 MOUSE_SIZE, 0, // wMaxPacketSize
320 1, // bInterval
321
322 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
323 9, // bLength
324 4, // bDescriptorType
325 DEBUG_INTERFACE, // bInterfaceNumber
326 0, // bAlternateSetting
327 1, // bNumEndpoints
328 0x03, // bInterfaceClass (0x03 = HID)
329 0x00, // bInterfaceSubClass
330 0x00, // bInterfaceProtocol
331 0, // iInterface
332 // HID descriptor, HID 1.11 spec, section 6.2.1
333 9, // bLength
334 0x21, // bDescriptorType
335 0x11, 0x01, // bcdHID
336 0, // bCountryCode
337 1, // bNumDescriptors
338 0x22, // bDescriptorType
339 sizeof(debug_hid_report_desc), // wDescriptorLength
340 0,
341 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
342 7, // bLength
343 5, // bDescriptorType
344 DEBUG_TX_ENDPOINT | 0x80, // bEndpointAddress
345 0x03, // bmAttributes (0x03=intr)
346 DEBUG_TX_SIZE, 0, // wMaxPacketSize
347 1 // bInterval
348 };
349
350 // If you're desperate for a little extra code memory, these strings
351 // can be completely removed if iManufacturer, iProduct, iSerialNumber
352 // in the device desciptor are changed to zeros.
353 struct usb_string_descriptor_struct {
354 uint8_t bLength;
355 uint8_t bDescriptorType;
356 int16_t wString[];
357 };
358 static struct usb_string_descriptor_struct PROGMEM string0 = {
359 4,
360 3,
361 {0x0409}
362 };
363 static struct usb_string_descriptor_struct PROGMEM string1 = {
364 sizeof(STR_MANUFACTURER),
365 3,
366 STR_MANUFACTURER
367 };
368 static struct usb_string_descriptor_struct PROGMEM string2 = {
369 sizeof(STR_PRODUCT),
370 3,
371 STR_PRODUCT
372 };
373
374 // This table defines which descriptor data is sent for each specific
375 // request from the host (in wValue and wIndex).
376 static struct descriptor_list_struct {
377 uint16_t wValue; // descriptor type
378 uint16_t wIndex;
379 const uint8_t *addr;
380 uint8_t length;
381 } PROGMEM descriptor_list[] = {
382 // DEVICE descriptor
383 {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
384 // CONFIGURATION descriptor
385 {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
386 // HID REPORT
387 {0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)},
388 {0x2100, KEYBOARD_INTERFACE, config1_descriptor+KEYBOARD_HID_DESC_OFFSET, 9},
389 // HID REPORT
390 {0x2200, MOUSE_INTERFACE, mouse_hid_report_desc, sizeof(mouse_hid_report_desc)},
391 {0x2100, MOUSE_INTERFACE, config1_descriptor+MOUSE_HID_DESC_OFFSET, 9},
392 // HID REPORT
393 {0x2200, DEBUG_INTERFACE, debug_hid_report_desc, sizeof(debug_hid_report_desc)},
394 {0x2100, DEBUG_INTERFACE, config1_descriptor+DEBUG_HID_DESC_OFFSET, 9},
395 // STRING descriptor
396 {0x0300, 0x0000, (const uint8_t *)&string0, 4},
397 {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
398 {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)}
399 };
400 #define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
401
402
403 /**************************************************************************
404 *
405 * Variables - these are the only non-stack RAM usage
406 *
407 **************************************************************************/
408
409 // zero when we are not configured, non-zero when enumerated
410 static volatile uint8_t usb_configuration=0;
411
412
413 /**************************************************************************
414 *
415 * Public Functions - these are the API intended for the user
416 *
417 **************************************************************************/
418
419
420 // initialize USB
421 void usb_init(void)
422 {
423 HW_CONFIG();
424 USB_FREEZE(); // enable USB
425 PLL_CONFIG(); // config PLL
426 while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock
427 USB_CONFIG(); // start USB clock
428 UDCON = 0; // enable attach resistor
429 usb_configuration = 0;
430 UDIEN = (1<<EORSTE)|(1<<SOFE);
431 sei();
432 }
433
434 // return 0 if the USB is not configured, or the configuration
435 // number selected by the HOST
436 uint8_t usb_configured(void)
437 {
438 return usb_configuration;
439 }
440
441
442
443 /**************************************************************************
444 *
445 * Private Functions - not intended for general user consumption....
446 *
447 **************************************************************************/
448
449
450
451 // USB Device Interrupt - handle all device-level events
452 // the transmit buffer flushing is triggered by the start of frame
453 //
454 ISR(USB_GEN_vect)
455 {
456 uint8_t intbits, t, i;
457 static uint8_t div4=0;
458
459 intbits = UDINT;
460 UDINT = 0;
461 if (intbits & (1<<EORSTI)) {
462 UENUM = 0;
463 UECONX = 1;
464 UECFG0X = EP_TYPE_CONTROL;
465 UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER;
466 UEIENX = (1<<RXSTPE);
467 usb_configuration = 0;
468 }
469 if ((intbits & (1<<SOFI)) && usb_configuration) {
470 t = debug_flush_timer;
471 if (t) {
472 debug_flush_timer = -- t;
473 if (!t) {
474 UENUM = DEBUG_TX_ENDPOINT;
475 while ((UEINTX & (1<<RWAL))) {
476 UEDATX = 0;
477 }
478 UEINTX = 0x3A;
479 }
480 }
481 if (usb_keyboard_idle_config && (++div4 & 3) == 0) {
482 UENUM = KEYBOARD_ENDPOINT;
483 if (UEINTX & (1<<RWAL)) {
484 usb_keyboard_idle_count++;
485 if (usb_keyboard_idle_count == usb_keyboard_idle_config) {
486 usb_keyboard_idle_count = 0;
487 UEDATX = usb_keyboard_mods;
488 UEDATX = 0;
489 for (i=0; i<6; i++) {
490 UEDATX = usb_keyboard_keys[i];
491 }
492 UEINTX = 0x3A;
493 }
494 }
495 }
496 }
497 }
498
499
500
501 // Misc functions to wait for ready and send/receive packets
502 static inline void usb_wait_in_ready(void)
503 {
504 while (!(UEINTX & (1<<TXINI))) ;
505 }
506 static inline void usb_send_in(void)
507 {
508 UEINTX = ~(1<<TXINI);
509 }
510 static inline void usb_wait_receive_out(void)
511 {
512 while (!(UEINTX & (1<<RXOUTI))) ;
513 }
514 static inline void usb_ack_out(void)
515 {
516 UEINTX = ~(1<<RXOUTI);
517 }
518
519
520
521 // USB Endpoint Interrupt - endpoint 0 is handled here. The
522 // other endpoints are manipulated by the user-callable
523 // functions, and the start-of-frame interrupt.
524 //
525 ISR(USB_COM_vect)
526 {
527 uint8_t intbits;
528 const uint8_t *list;
529 const uint8_t *cfg;
530 uint8_t i, n, len, en;
531 uint8_t bmRequestType;
532 uint8_t bRequest;
533 uint16_t wValue;
534 uint16_t wIndex;
535 uint16_t wLength;
536 uint16_t desc_val;
537 const uint8_t *desc_addr;
538 uint8_t desc_length;
539
540 UENUM = 0;
541 intbits = UEINTX;
542 if (intbits & (1<<RXSTPI)) {
543 bmRequestType = UEDATX;
544 bRequest = UEDATX;
545 wValue = UEDATX;
546 wValue |= (UEDATX << 8);
547 wIndex = UEDATX;
548 wIndex |= (UEDATX << 8);
549 wLength = UEDATX;
550 wLength |= (UEDATX << 8);
551 UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
552 if (bRequest == GET_DESCRIPTOR) {
553 list = (const uint8_t *)descriptor_list;
554 for (i=0; ; i++) {
555 if (i >= NUM_DESC_LIST) {
556 UECONX = (1<<STALLRQ)|(1<<EPEN); //stall
557 return;
558 }
559 desc_val = pgm_read_word(list);
560 if (desc_val != wValue) {
561 list += sizeof(struct descriptor_list_struct);
562 continue;
563 }
564 list += 2;
565 desc_val = pgm_read_word(list);
566 if (desc_val != wIndex) {
567 list += sizeof(struct descriptor_list_struct)-2;
568 continue;
569 }
570 list += 2;
571 desc_addr = (const uint8_t *)pgm_read_word(list);
572 list += 2;
573 desc_length = pgm_read_byte(list);
574 break;
575 }
576 len = (wLength < 256) ? wLength : 255;
577 if (len > desc_length) len = desc_length;
578 do {
579 // wait for host ready for IN packet
580 do {
581 i = UEINTX;
582 } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
583 if (i & (1<<RXOUTI)) return; // abort
584 // send IN packet
585 n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
586 for (i = n; i; i--) {
587 UEDATX = pgm_read_byte(desc_addr++);
588 }
589 len -= n;
590 usb_send_in();
591 } while (len || n == ENDPOINT0_SIZE);
592 return;
593 }
594 if (bRequest == SET_ADDRESS) {
595 usb_send_in();
596 usb_wait_in_ready();
597 UDADDR = wValue | (1<<ADDEN);
598 return;
599 }
600 if (bRequest == SET_CONFIGURATION && bmRequestType == 0) {
601 usb_configuration = wValue;
602 usb_send_in();
603 cfg = endpoint_config_table;
604 for (i=1; i<=6; i++) {
605 UENUM = i;
606 en = pgm_read_byte(cfg++);
607 UECONX = en;
608 if (en) {
609 UECFG0X = pgm_read_byte(cfg++);
610 UECFG1X = pgm_read_byte(cfg++);
611 }
612 }
613 UERST = 0x7E;
614 UERST = 0;
615 return;
616 }
617 if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) {
618 usb_wait_in_ready();
619 UEDATX = usb_configuration;
620 usb_send_in();
621 return;
622 }
623
624 if (bRequest == GET_STATUS) {
625 usb_wait_in_ready();
626 i = 0;
627 #ifdef SUPPORT_ENDPOINT_HALT
628 if (bmRequestType == 0x82) {
629 UENUM = wIndex;
630 if (UECONX & (1<<STALLRQ)) i = 1;
631 UENUM = 0;
632 }
633 #endif
634 UEDATX = i;
635 UEDATX = 0;
636 usb_send_in();
637 return;
638 }
639 #ifdef SUPPORT_ENDPOINT_HALT
640 if ((bRequest == CLEAR_FEATURE || bRequest == SET_FEATURE)
641 && bmRequestType == 0x02 && wValue == 0) {
642 i = wIndex & 0x7F;
643 if (i >= 1 && i <= MAX_ENDPOINT) {
644 usb_send_in();
645 UENUM = i;
646 if (bRequest == SET_FEATURE) {
647 UECONX = (1<<STALLRQ)|(1<<EPEN);
648 } else {
649 UECONX = (1<<STALLRQC)|(1<<RSTDT)|(1<<EPEN);
650 UERST = (1 << i);
651 UERST = 0;
652 }
653 return;
654 }
655 }
656 #endif
657 if (wIndex == KEYBOARD_INTERFACE) {
658 if (bmRequestType == 0xA1) {
659 if (bRequest == HID_GET_REPORT) {
660 usb_wait_in_ready();
661 UEDATX = usb_keyboard_mods;
662 UEDATX = 0;
663 for (i=0; i<6; i++) {
664 UEDATX = usb_keyboard_keys[i];
665 }
666 usb_send_in();
667 return;
668 }
669 if (bRequest == HID_GET_IDLE) {
670 usb_wait_in_ready();
671 UEDATX = usb_keyboard_idle_config;
672 usb_send_in();
673 return;
674 }
675 if (bRequest == HID_GET_PROTOCOL) {
676 usb_wait_in_ready();
677 UEDATX = usb_keyboard_protocol;
678 usb_send_in();
679 return;
680 }
681 }
682 if (bmRequestType == 0x21) {
683 if (bRequest == HID_SET_REPORT) {
684 usb_wait_receive_out();
685 usb_keyboard_leds = UEDATX;
686 usb_ack_out();
687 usb_send_in();
688 return;
689 }
690 if (bRequest == HID_SET_IDLE) {
691 usb_keyboard_idle_config = (wValue >> 8);
692 usb_keyboard_idle_count = 0;
693 //usb_wait_in_ready();
694 usb_send_in();
695 return;
696 }
697 if (bRequest == HID_SET_PROTOCOL) {
698 usb_keyboard_protocol = wValue;
699 //usb_wait_in_ready();
700 usb_send_in();
701 return;
702 }
703 }
704 }
705 if (wIndex == MOUSE_INTERFACE) {
706 if (bmRequestType == 0xA1) {
707 if (bRequest == HID_GET_REPORT) {
708 if (wValue == HID_REPORT_INPUT) {
709 usb_wait_in_ready();
710 UEDATX = mouse_buttons;
711 UEDATX = 0;
712 UEDATX = 0;
713 UEDATX = 0;
714 usb_send_in();
715 return;
716 }
717 if (wValue == HID_REPORT_FEATURE) {
718 usb_wait_in_ready();
719 UEDATX = 0x05;
720 usb_send_in();
721 return;
722 }
723 }
724 if (bRequest == HID_GET_PROTOCOL) {
725 usb_wait_in_ready();
726 UEDATX = mouse_protocol;
727 usb_send_in();
728 return;
729 }
730 }
731 if (bmRequestType == 0x21) {
732 if (bRequest == HID_SET_PROTOCOL) {
733 mouse_protocol = wValue;
734 usb_send_in();
735 return;
736 }
737 }
738 }
739 if (wIndex == DEBUG_INTERFACE) {
740 if (bRequest == HID_GET_REPORT && bmRequestType == 0xA1) {
741 len = wLength;
742 do {
743 // wait for host ready for IN packet
744 do {
745 i = UEINTX;
746 } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
747 if (i & (1<<RXOUTI)) return; // abort
748 // send IN packet
749 n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
750 for (i = n; i; i--) {
751 UEDATX = 0;
752 }
753 len -= n;
754 usb_send_in();
755 } while (len || n == ENDPOINT0_SIZE);
756 return;
757 }
758 }
759 }
760 UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
761 }
custom keymap for my minivan; forked from http://github.com/evangs/tmk_keyboard
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