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wdenkaffae2b2002-08-17 09:36:01 +00001/*
2 * (C) Copyright 2001
3 * Denis Peter, MPL AG Switzerland
4 *
5 * Part of this source has been derived from the Linux USB
6 * project.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 *
26 */
27#include <common.h>
28#include <devices.h>
Christian Eggersc9182612008-05-21 22:12:00 +020029#include <asm/byteorder.h>
wdenkaffae2b2002-08-17 09:36:01 +000030
wdenkaffae2b2002-08-17 09:36:01 +000031#include <usb.h>
32
33#undef USB_KBD_DEBUG
34/*
35 * if overwrite_console returns 1, the stdin, stderr and stdout
36 * are switched to the serial port, else the settings in the
37 * environment are used
38 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020039#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
wdenkaffae2b2002-08-17 09:36:01 +000040extern int overwrite_console (void);
41#else
42int overwrite_console (void)
43{
44 return (0);
45}
46#endif
47
48#ifdef USB_KBD_DEBUG
49#define USB_KBD_PRINTF(fmt,args...) printf (fmt ,##args)
50#else
51#define USB_KBD_PRINTF(fmt,args...)
52#endif
53
54
55#define REPEAT_RATE 40/4 /* 40msec -> 25cps */
56#define REPEAT_DELAY 10 /* 10 x REAPEAT_RATE = 400msec */
57
58#define NUM_LOCK 0x53
59#define CAPS_LOCK 0x39
60#define SCROLL_LOCK 0x47
61
62
63/* Modifier bits */
64#define LEFT_CNTR 0
65#define LEFT_SHIFT 1
66#define LEFT_ALT 2
67#define LEFT_GUI 3
68#define RIGHT_CNTR 4
69#define RIGHT_SHIFT 5
70#define RIGHT_ALT 6
71#define RIGHT_GUI 7
72
73#define USB_KBD_BUFFER_LEN 0x20 /* size of the keyboardbuffer */
74
75static volatile char usb_kbd_buffer[USB_KBD_BUFFER_LEN];
76static volatile int usb_in_pointer = 0;
77static volatile int usb_out_pointer = 0;
78
79unsigned char new[8];
80unsigned char old[8];
81int repeat_delay;
82#define DEVNAME "usbkbd"
83static unsigned char num_lock = 0;
84static unsigned char caps_lock = 0;
85static unsigned char scroll_lock = 0;
Zhang Wei4785a692008-01-03 10:51:15 +080086static unsigned char ctrl = 0;
wdenkaffae2b2002-08-17 09:36:01 +000087
88static unsigned char leds __attribute__ ((aligned (0x4)));
89
90static unsigned char usb_kbd_numkey[] = {
91 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0','\r',0x1b,'\b','\t',' ', '-',
92 '=', '[', ']','\\', '#', ';', '\'', '`', ',', '.', '/'
93};
94static unsigned char usb_kbd_numkey_shifted[] = {
95 '!', '@', '#', '$', '%', '^', '&', '*', '(', ')','\r',0x1b,'\b','\t',' ', '_',
96 '+', '{', '}', '|', '~', ':', '"', '~', '<', '>', '?'
97};
98
99/******************************************************************
100 * Queue handling
101 ******************************************************************/
102/* puts character in the queue and sets up the in and out pointer */
103static void usb_kbd_put_queue(char data)
104{
105 if((usb_in_pointer+1)==USB_KBD_BUFFER_LEN) {
106 if(usb_out_pointer==0) {
107 return; /* buffer full */
108 } else{
109 usb_in_pointer=0;
110 }
111 } else {
112 if((usb_in_pointer+1)==usb_out_pointer)
113 return; /* buffer full */
114 usb_in_pointer++;
115 }
116 usb_kbd_buffer[usb_in_pointer]=data;
117 return;
118}
119
120/* test if a character is in the queue */
121static int usb_kbd_testc(void)
122{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200123#ifdef CONFIG_SYS_USB_EVENT_POLL
Zhang Wei4785a692008-01-03 10:51:15 +0800124 usb_event_poll();
125#endif
wdenkaffae2b2002-08-17 09:36:01 +0000126 if(usb_in_pointer==usb_out_pointer)
127 return(0); /* no data */
128 else
129 return(1);
130}
131/* gets the character from the queue */
132static int usb_kbd_getc(void)
133{
134 char c;
Zhang Weifdcfaa12007-06-06 10:08:13 +0200135 while(usb_in_pointer==usb_out_pointer) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200136#ifdef CONFIG_SYS_USB_EVENT_POLL
Zhang Weifdcfaa12007-06-06 10:08:13 +0200137 usb_event_poll();
138#endif
139 }
wdenkaffae2b2002-08-17 09:36:01 +0000140 if((usb_out_pointer+1)==USB_KBD_BUFFER_LEN)
141 usb_out_pointer=0;
142 else
143 usb_out_pointer++;
144 c=usb_kbd_buffer[usb_out_pointer];
145 return (int)c;
146
147}
148
149/* forward decleration */
150static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum);
151
152/* search for keyboard and register it if found */
153int drv_usb_kbd_init(void)
154{
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200155 int error,i;
wdenkaffae2b2002-08-17 09:36:01 +0000156 device_t usb_kbd_dev,*old_dev;
157 struct usb_device *dev;
158 char *stdinname = getenv ("stdin");
159
160 usb_in_pointer=0;
161 usb_out_pointer=0;
162 /* scan all USB Devices */
163 for(i=0;i<USB_MAX_DEVICE;i++) {
164 dev=usb_get_dev_index(i); /* get device */
Ryan CHEN3b20fd82008-08-20 13:00:17 -0400165 if(dev == NULL)
166 return -1;
wdenkaffae2b2002-08-17 09:36:01 +0000167 if(dev->devnum!=-1) {
168 if(usb_kbd_probe(dev,0)==1) { /* Ok, we found a keyboard */
169 /* check, if it is already registered */
170 USB_KBD_PRINTF("USB KBD found set up device.\n");
Jean-Christophe PLAGNIOL-VILLARDc1de7a62008-08-31 04:24:55 +0200171 old_dev = device_get_by_name(DEVNAME);
172 if(old_dev) {
173 /* ok, already registered, just return ok */
174 USB_KBD_PRINTF("USB KBD is already registered.\n");
175 return 1;
wdenkaffae2b2002-08-17 09:36:01 +0000176 }
177 /* register the keyboard */
178 USB_KBD_PRINTF("USB KBD register.\n");
179 memset (&usb_kbd_dev, 0, sizeof(device_t));
180 strcpy(usb_kbd_dev.name, DEVNAME);
181 usb_kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
182 usb_kbd_dev.putc = NULL;
183 usb_kbd_dev.puts = NULL;
184 usb_kbd_dev.getc = usb_kbd_getc;
185 usb_kbd_dev.tstc = usb_kbd_testc;
186 error = device_register (&usb_kbd_dev);
187 if(error==0) {
188 /* check if this is the standard input device */
189 if(strcmp(stdinname,DEVNAME)==0) {
190 /* reassign the console */
191 if(overwrite_console()) {
192 return 1;
193 }
194 error=console_assign(stdin,DEVNAME);
195 if(error==0)
196 return 1;
197 else
198 return error;
199 }
200 return 1;
201 }
202 return error;
203 }
204 }
205 }
206 /* no USB Keyboard found */
207 return -1;
208}
209
210
211/* deregistering the keyboard */
212int usb_kbd_deregister(void)
213{
214 return device_deregister(DEVNAME);
215}
216
217/**************************************************************************
218 * Low Level drivers
219 */
220
221/* set the LEDs. Since this is used in the irq routine, the control job
222 is issued with a timeout of 0. This means, that the job is queued without
223 waiting for job completion */
224
225static void usb_kbd_setled(struct usb_device *dev)
226{
227 struct usb_interface_descriptor *iface;
228 iface = &dev->config.if_desc[0];
229 leds=0;
230 if(scroll_lock!=0)
231 leds|=1;
232 leds<<=1;
233 if(caps_lock!=0)
234 leds|=1;
235 leds<<=1;
236 if(num_lock!=0)
237 leds|=1;
238 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
239 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200240 0x200, iface->bInterfaceNumber,(void *)&leds, 1, 0);
wdenkaffae2b2002-08-17 09:36:01 +0000241
242}
243
244
245#define CAPITAL_MASK 0x20
246/* Translate the scancode in ASCII */
247static int usb_kbd_translate(unsigned char scancode,unsigned char modifier,int pressed)
248{
249 unsigned char keycode;
250
251 if(pressed==0) {
252 /* key released */
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200253 repeat_delay=0;
wdenkaffae2b2002-08-17 09:36:01 +0000254 return 0;
255 }
256 if(pressed==2) {
257 repeat_delay++;
258 if(repeat_delay<REPEAT_DELAY)
259 return 0;
260 repeat_delay=REPEAT_DELAY;
261 }
262 keycode=0;
Zhang Weieb6f2142007-10-25 17:51:27 +0800263 if((scancode>3) && (scancode<=0x1d)) { /* alpha numeric values */
wdenkaffae2b2002-08-17 09:36:01 +0000264 keycode=scancode-4 + 0x61;
265 if(caps_lock)
266 keycode&=~CAPITAL_MASK; /* switch to capital Letters */
267 if(((modifier&(1<<LEFT_SHIFT))!=0)||((modifier&(1<<RIGHT_SHIFT))!=0)) {
268 if(keycode & CAPITAL_MASK)
269 keycode&=~CAPITAL_MASK; /* switch to capital Letters */
270 else
271 keycode|=CAPITAL_MASK; /* switch to non capital Letters */
272 }
273 }
274 if((scancode>0x1d) && (scancode<0x3A)) {
275 if(((modifier&(1<<LEFT_SHIFT))!=0)||((modifier&(1<<RIGHT_SHIFT))!=0)) /* shifted */
276 keycode=usb_kbd_numkey_shifted[scancode-0x1e];
277 else /* non shifted */
278 keycode=usb_kbd_numkey[scancode-0x1e];
279 }
Zhang Wei4785a692008-01-03 10:51:15 +0800280
281 if (ctrl)
282 keycode = scancode - 0x3;
283
wdenkaffae2b2002-08-17 09:36:01 +0000284 if(pressed==1) {
285 if(scancode==NUM_LOCK) {
286 num_lock=~num_lock;
287 return 1;
288 }
289 if(scancode==CAPS_LOCK) {
290 caps_lock=~caps_lock;
291 return 1;
292 }
293 if(scancode==SCROLL_LOCK) {
294 scroll_lock=~scroll_lock;
295 return 1;
296 }
297 }
298 if(keycode!=0) {
299 USB_KBD_PRINTF("%c",keycode);
300 usb_kbd_put_queue(keycode);
301 }
302 return 0;
303}
304
305/* Interrupt service routine */
306static int usb_kbd_irq(struct usb_device *dev)
307{
308 int i,res;
309
310 if((dev->irq_status!=0)||(dev->irq_act_len!=8))
311 {
312 USB_KBD_PRINTF("usb_keyboard Error %lX, len %d\n",dev->irq_status,dev->irq_act_len);
313 return 1;
314 }
315 res=0;
Zhang Wei4785a692008-01-03 10:51:15 +0800316
317 switch (new[0]) {
318 case 0x0: /* No combo key pressed */
319 ctrl = 0;
320 break;
321 case 0x01: /* Left Ctrl pressed */
322 case 0x10: /* Right Ctrl pressed */
323 ctrl = 1;
324 break;
325 }
326
wdenkaffae2b2002-08-17 09:36:01 +0000327 for (i = 2; i < 8; i++) {
328 if (old[i] > 3 && memscan(&new[2], old[i], 6) == &new[8]) {
329 res|=usb_kbd_translate(old[i],new[0],0);
330 }
331 if (new[i] > 3 && memscan(&old[2], new[i], 6) == &old[8]) {
332 res|=usb_kbd_translate(new[i],new[0],1);
333 }
334 }
335 if((new[2]>3) && (old[2]==new[2])) /* still pressed */
336 res|=usb_kbd_translate(new[2],new[0],2);
337 if(res==1)
338 usb_kbd_setled(dev);
339 memcpy(&old[0],&new[0], 8);
340 return 1; /* install IRQ Handler again */
341}
342
343/* probes the USB device dev for keyboard type */
344static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
345{
346 struct usb_interface_descriptor *iface;
347 struct usb_endpoint_descriptor *ep;
348 int pipe,maxp;
349
350 if (dev->descriptor.bNumConfigurations != 1) return 0;
351 iface = &dev->config.if_desc[ifnum];
352
353 if (iface->bInterfaceClass != 3) return 0;
354 if (iface->bInterfaceSubClass != 1) return 0;
355 if (iface->bInterfaceProtocol != 1) return 0;
356 if (iface->bNumEndpoints != 1) return 0;
357
358 ep = &iface->ep_desc[0];
359
360 if (!(ep->bEndpointAddress & 0x80)) return 0;
361 if ((ep->bmAttributes & 3) != 3) return 0;
362 USB_KBD_PRINTF("USB KBD found set protocol...\n");
363 /* ok, we found a USB Keyboard, install it */
364 /* usb_kbd_get_hid_desc(dev); */
365 usb_set_protocol(dev, iface->bInterfaceNumber, 0);
366 USB_KBD_PRINTF("USB KBD found set idle...\n");
367 usb_set_idle(dev, iface->bInterfaceNumber, REPEAT_RATE, 0);
368 memset(&new[0], 0, 8);
369 memset(&old[0], 0, 8);
370 repeat_delay=0;
371 pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
372 maxp = usb_maxpacket(dev, pipe);
373 dev->irq_handle=usb_kbd_irq;
374 USB_KBD_PRINTF("USB KBD enable interrupt pipe...\n");
375 usb_submit_int_msg(dev,pipe,&new[0], maxp > 8 ? 8 : maxp,ep->bInterval);
376 return 1;
377}
378
379
380#if 0
381struct usb_hid_descriptor {
382 unsigned char bLength;
383 unsigned char bDescriptorType; /* 0x21 for HID */
384 unsigned short bcdHID; /* release number */
385 unsigned char bCountryCode;
386 unsigned char bNumDescriptors;
387 unsigned char bReportDescriptorType;
388 unsigned short wDescriptorLength;
389} __attribute__ ((packed));
390
391/*
392 * We parse each description item into this structure. Short items data
393 * values are expanded to 32-bit signed int, long items contain a pointer
394 * into the data area.
395 */
396
397struct hid_item {
398 unsigned char format;
399 unsigned char size;
400 unsigned char type;
401 unsigned char tag;
402 union {
403 unsigned char u8;
404 char s8;
405 unsigned short u16;
406 short s16;
407 unsigned long u32;
408 long s32;
409 unsigned char *longdata;
410 } data;
411};
412
413/*
414 * HID report item format
415 */
416
417#define HID_ITEM_FORMAT_SHORT 0
418#define HID_ITEM_FORMAT_LONG 1
419
420/*
421 * Special tag indicating long items
422 */
423
424#define HID_ITEM_TAG_LONG 15
425
426
wdenkaffae2b2002-08-17 09:36:01 +0000427static struct usb_hid_descriptor usb_kbd_hid_desc;
428
429void usb_kbd_display_hid(struct usb_hid_descriptor *hid)
430{
431 printf("USB_HID_DESC:\n");
432 printf(" bLenght 0x%x\n",hid->bLength);
433 printf(" bcdHID 0x%x\n",hid->bcdHID);
434 printf(" bCountryCode %d\n",hid->bCountryCode);
435 printf(" bNumDescriptors 0x%x\n",hid->bNumDescriptors);
436 printf(" bReportDescriptorType 0x%x\n",hid->bReportDescriptorType);
437 printf(" wDescriptorLength 0x%x\n",hid->wDescriptorLength);
438}
439
440
441/*
442 * Fetch a report description item from the data stream. We support long
443 * items, though they are not used yet.
444 */
445
446static int fetch_item(unsigned char *start,unsigned char *end, struct hid_item *item)
447{
448 if((end - start) > 0) {
449 unsigned char b = *start++;
450 item->type = (b >> 2) & 3;
451 item->tag = (b >> 4) & 15;
452 if (item->tag == HID_ITEM_TAG_LONG) {
453 item->format = HID_ITEM_FORMAT_LONG;
454 if ((end - start) >= 2) {
455 item->size = *start++;
456 item->tag = *start++;
457 if ((end - start) >= item->size) {
458 item->data.longdata = start;
459 start += item->size;
460 return item->size;
461 }
462 }
463 } else {
464 item->format = HID_ITEM_FORMAT_SHORT;
465 item->size = b & 3;
466 switch (item->size) {
467 case 0:
468 return item->size;
469 case 1:
470 if ((end - start) >= 1) {
471 item->data.u8 = *start++;
472 return item->size;
473 }
474 break;
475 case 2:
476 if ((end - start) >= 2) {
Christian Eggersc9182612008-05-21 22:12:00 +0200477 item->data.u16 = le16_to_cpu((unsigned short *)start);
wdenkaffae2b2002-08-17 09:36:01 +0000478 start+=2;
479 return item->size;
480 }
481 case 3:
482 item->size++;
483 if ((end - start) >= 4) {
Christian Eggersc9182612008-05-21 22:12:00 +0200484 item->data.u32 = le32_to_cpu((unsigned long *)start);
wdenkaffae2b2002-08-17 09:36:01 +0000485 start+=4;
486 return item->size;
487 }
488 }
489 }
490 }
491 return -1;
492}
493
494/*
495 * HID report descriptor item type (prefix bit 2,3)
496 */
497
498#define HID_ITEM_TYPE_MAIN 0
499#define HID_ITEM_TYPE_GLOBAL 1
500#define HID_ITEM_TYPE_LOCAL 2
501#define HID_ITEM_TYPE_RESERVED 3
502/*
503 * HID report descriptor main item tags
504 */
505
506#define HID_MAIN_ITEM_TAG_INPUT 8
507#define HID_MAIN_ITEM_TAG_OUTPUT 9
508#define HID_MAIN_ITEM_TAG_FEATURE 11
509#define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10
510#define HID_MAIN_ITEM_TAG_END_COLLECTION 12
511/*
512 * HID report descriptor main item contents
513 */
514
515#define HID_MAIN_ITEM_CONSTANT 0x001
516#define HID_MAIN_ITEM_VARIABLE 0x002
517#define HID_MAIN_ITEM_RELATIVE 0x004
518#define HID_MAIN_ITEM_WRAP 0x008
519#define HID_MAIN_ITEM_NONLINEAR 0x010
520#define HID_MAIN_ITEM_NO_PREFERRED 0x020
521#define HID_MAIN_ITEM_NULL_STATE 0x040
522#define HID_MAIN_ITEM_VOLATILE 0x080
523#define HID_MAIN_ITEM_BUFFERED_BYTE 0x100
524
525/*
526 * HID report descriptor collection item types
527 */
528
529#define HID_COLLECTION_PHYSICAL 0
530#define HID_COLLECTION_APPLICATION 1
531#define HID_COLLECTION_LOGICAL 2
532/*
533 * HID report descriptor global item tags
534 */
535
536#define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0
537#define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
538#define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
539#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3
540#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4
541#define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5
542#define HID_GLOBAL_ITEM_TAG_UNIT 6
543#define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7
544#define HID_GLOBAL_ITEM_TAG_REPORT_ID 8
545#define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9
546#define HID_GLOBAL_ITEM_TAG_PUSH 10
547#define HID_GLOBAL_ITEM_TAG_POP 11
548
549/*
550 * HID report descriptor local item tags
551 */
552
553#define HID_LOCAL_ITEM_TAG_USAGE 0
554#define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1
555#define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2
556#define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3
557#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4
558#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5
559#define HID_LOCAL_ITEM_TAG_STRING_INDEX 7
560#define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8
561#define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9
562#define HID_LOCAL_ITEM_TAG_DELIMITER 10
563
564
wdenkaffae2b2002-08-17 09:36:01 +0000565static void usb_kbd_show_item(struct hid_item *item)
566{
567 switch(item->type) {
568 case HID_ITEM_TYPE_MAIN:
569 switch(item->tag) {
570 case HID_MAIN_ITEM_TAG_INPUT:
571 printf("Main Input");
572 break;
573 case HID_MAIN_ITEM_TAG_OUTPUT:
574 printf("Main Output");
575 break;
576 case HID_MAIN_ITEM_TAG_FEATURE:
577 printf("Main Feature");
578 break;
579 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
580 printf("Main Begin Collection");
581 break;
582 case HID_MAIN_ITEM_TAG_END_COLLECTION:
583 printf("Main End Collection");
584 break;
585 default:
586 printf("Main reserved %d",item->tag);
587 break;
588 }
589 break;
590 case HID_ITEM_TYPE_GLOBAL:
591 switch(item->tag) {
592 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
593 printf("- Global Usage Page");
594 break;
595 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
596 printf("- Global Logical Minimum");
597 break;
598 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
599 printf("- Global Logical Maximum");
600 break;
601 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
602 printf("- Global physical Minimum");
603 break;
604 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
605 printf("- Global physical Maximum");
606 break;
607 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
608 printf("- Global Unit Exponent");
609 break;
610 case HID_GLOBAL_ITEM_TAG_UNIT:
611 printf("- Global Unit");
612 break;
613 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
614 printf("- Global Report Size");
615 break;
616 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
617 printf("- Global Report ID");
618 break;
619 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
620 printf("- Global Report Count");
621 break;
622 case HID_GLOBAL_ITEM_TAG_PUSH:
623 printf("- Global Push");
624 break;
625 case HID_GLOBAL_ITEM_TAG_POP:
626 printf("- Global Pop");
627 break;
628 default:
629 printf("- Global reserved %d",item->tag);
630 break;
631 }
632 break;
633 case HID_ITEM_TYPE_LOCAL:
634 switch(item->tag) {
635 case HID_LOCAL_ITEM_TAG_USAGE:
636 printf("-- Local Usage");
637 break;
638 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
639 printf("-- Local Usage Minimum");
640 break;
641 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
642 printf("-- Local Usage Maximum");
643 break;
644 case HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX:
645 printf("-- Local Designator Index");
646 break;
647 case HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM:
648 printf("-- Local Designator Minimum");
649 break;
650 case HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM:
651 printf("-- Local Designator Maximum");
652 break;
653 case HID_LOCAL_ITEM_TAG_STRING_INDEX:
654 printf("-- Local String Index");
655 break;
656 case HID_LOCAL_ITEM_TAG_STRING_MINIMUM:
657 printf("-- Local String Minimum");
658 break;
659 case HID_LOCAL_ITEM_TAG_STRING_MAXIMUM:
660 printf("-- Local String Maximum");
661 break;
662 case HID_LOCAL_ITEM_TAG_DELIMITER:
663 printf("-- Local Delimiter");
664 break;
665 default:
666 printf("-- Local reserved %d",item->tag);
667 break;
668 }
669 break;
670 default:
671 printf("--- reserved %d",item->type);
672 break;
673 }
674 switch(item->size) {
675 case 1:
676 printf(" %d",item->data.u8);
677 break;
678 case 2:
679 printf(" %d",item->data.u16);
680 break;
681 case 4:
682 printf(" %ld",item->data.u32);
683 break;
684 }
685 printf("\n");
686}
687
688
wdenkaffae2b2002-08-17 09:36:01 +0000689static int usb_kbd_get_hid_desc(struct usb_device *dev)
690{
691 unsigned char buffer[256];
692 struct usb_descriptor_header *head;
693 struct usb_config_descriptor *config;
694 int index,len,i;
695 unsigned char *start, *end;
696 struct hid_item item;
697
698 if(usb_get_configuration_no(dev,&buffer[0],0)==-1)
699 return -1;
700 head =(struct usb_descriptor_header *)&buffer[0];
701 if(head->bDescriptorType!=USB_DT_CONFIG) {
702 printf(" ERROR: NOT USB_CONFIG_DESC %x\n",head->bDescriptorType);
703 return -1;
704 }
705 index=head->bLength;
706 config=(struct usb_config_descriptor *)&buffer[0];
Christian Eggersc9182612008-05-21 22:12:00 +0200707 len=le16_to_cpu(config->wTotalLength);
wdenkaffae2b2002-08-17 09:36:01 +0000708 /* Ok the first entry must be a configuration entry, now process the others */
709 head=(struct usb_descriptor_header *)&buffer[index];
710 while(index+1 < len) {
711 if(head->bDescriptorType==USB_DT_HID) {
712 printf("HID desc found\n");
713 memcpy(&usb_kbd_hid_desc,&buffer[index],buffer[index]);
Christian Eggersc9182612008-05-21 22:12:00 +0200714 le16_to_cpus(&usb_kbd_hid_desc.bcdHID);
715 le16_to_cpus(&usb_kbd_hid_desc.wDescriptorLength);
wdenkaffae2b2002-08-17 09:36:01 +0000716 usb_kbd_display_hid(&usb_kbd_hid_desc);
717 len=0;
718 break;
719 }
720 index+=head->bLength;
721 head=(struct usb_descriptor_header *)&buffer[index];
722 }
723 if(len>0)
724 return -1;
725 len=usb_kbd_hid_desc.wDescriptorLength;
726 if((index = usb_get_class_descriptor(dev, 0, USB_DT_REPORT, 0, &buffer[0], len)) < 0) {
727 printf("reading report descriptor failed\n");
728 return -1;
729 }
730 printf(" report descriptor (size %u, read %d)\n", len, index);
Wolfgang Denkd0ff51b2008-07-14 15:19:07 +0200731 start = &buffer[0];
732 end = &buffer[len];
wdenkaffae2b2002-08-17 09:36:01 +0000733 i=0;
734 do {
735 index=fetch_item(start,end,&item);
736 i+=index;
737 i++;
738 if(index>=0)
739 usb_kbd_show_item(&item);
740
741 start+=index;
742 start++;
743 } while(index>=0);
744
745}
746
wdenkaffae2b2002-08-17 09:36:01 +0000747#endif