projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| affae2bf WD |
1 | /* |
| 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> | |
| 52cb4d4f | 28 | #include <stdio_dev.h> |
| c918261c | 29 | #include <asm/byteorder.h> |
| affae2bf | 30 | |
| affae2bf WD |
31 | #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 | */ | |
| 6d0f6bcf | 39 | #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE |
| affae2bf WD |
40 | extern int overwrite_console (void); |
| 41 | #else | |
| 42 | int 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 | ||
| 75 | static volatile char usb_kbd_buffer[USB_KBD_BUFFER_LEN]; | |
| 76 | static volatile int usb_in_pointer = 0; | |
| 77 | static volatile int usb_out_pointer = 0; | |
| 78 | ||
| 79 | unsigned char new[8]; | |
| 80 | unsigned char old[8]; | |
| 81 | int repeat_delay; | |
| 82 | #define DEVNAME "usbkbd" | |
| 83 | static unsigned char num_lock = 0; | |
| 84 | static unsigned char caps_lock = 0; | |
| 85 | static unsigned char scroll_lock = 0; | |
| 4785a694 | 86 | static unsigned char ctrl = 0; |
| affae2bf WD |
87 | |
| 88 | static unsigned char leds __attribute__ ((aligned (0x4))); | |
| 89 | ||
| 90 | static unsigned char usb_kbd_numkey[] = { | |
| 91 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0','\r',0x1b,'\b','\t',' ', '-', | |
| 92 | '=', '[', ']','\\', '#', ';', '\'', '`', ',', '.', '/' | |
| 93 | }; | |
| 94 | static 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 */ | |
| 103 | static 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 */ | |
| 121 | static int usb_kbd_testc(void) | |
| 122 | { | |
| 6d0f6bcf | 123 | #ifdef CONFIG_SYS_USB_EVENT_POLL |
| 4785a694 ZW |
124 | usb_event_poll(); |
| 125 | #endif | |
| affae2bf WD |
126 | 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 */ | |
| 132 | static int usb_kbd_getc(void) | |
| 133 | { | |
| 134 | char c; | |
| fdcfaa1b | 135 | while(usb_in_pointer==usb_out_pointer) { |
| 6d0f6bcf | 136 | #ifdef CONFIG_SYS_USB_EVENT_POLL |
| fdcfaa1b ZW |
137 | usb_event_poll(); |
| 138 | #endif | |
| 139 | } | |
| affae2bf WD |
140 | 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 */ | |
| 150 | static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum); | |
| 151 | ||
| 152 | /* search for keyboard and register it if found */ | |
| 153 | int drv_usb_kbd_init(void) | |
| 154 | { | |
| c1de7a6d | 155 | int error,i; |
| 52cb4d4f | 156 | struct stdio_dev usb_kbd_dev,*old_dev; |
| affae2bf WD |
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 */ | |
| 3b20fd83 RC |
165 | if(dev == NULL) |
| 166 | return -1; | |
| affae2bf WD |
167 | 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"); | |
| 52cb4d4f | 171 | old_dev = stdio_get_by_name(DEVNAME); |
| c1de7a6d JCPV |
172 | if(old_dev) { |
| 173 | /* ok, already registered, just return ok */ | |
| 174 | USB_KBD_PRINTF("USB KBD is already registered.\n"); | |
| 175 | return 1; | |
| affae2bf WD |
176 | } |
| 177 | /* register the keyboard */ | |
| 178 | USB_KBD_PRINTF("USB KBD register.\n"); | |
| 52cb4d4f | 179 | memset (&usb_kbd_dev, 0, sizeof(struct stdio_dev)); |
| affae2bf WD |
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; | |
| 1eb734fe | 186 | usb_kbd_dev.priv = (void *)dev; |
| 52cb4d4f | 187 | error = stdio_register (&usb_kbd_dev); |
| affae2bf WD |
188 | if(error==0) { |
| 189 | /* check if this is the standard input device */ | |
| 190 | if(strcmp(stdinname,DEVNAME)==0) { | |
| 191 | /* reassign the console */ | |
| 192 | if(overwrite_console()) { | |
| 193 | return 1; | |
| 194 | } | |
| 195 | error=console_assign(stdin,DEVNAME); | |
| 196 | if(error==0) | |
| 197 | return 1; | |
| 198 | else | |
| 199 | return error; | |
| 200 | } | |
| 201 | return 1; | |
| 202 | } | |
| 203 | return error; | |
| 204 | } | |
| 205 | } | |
| 206 | } | |
| 207 | /* no USB Keyboard found */ | |
| 208 | return -1; | |
| 209 | } | |
| 210 | ||
| 211 | ||
| 212 | /* deregistering the keyboard */ | |
| 213 | int usb_kbd_deregister(void) | |
| 214 | { | |
| 52cb4d4f JCPV |
215 | #ifdef CONFIG_SYS_STDIO_DEREGISTER |
| 216 | return stdio_deregister(DEVNAME); | |
| fea91ede JCPV |
217 | #else |
| 218 | return 1; | |
| 219 | #endif | |
| affae2bf WD |
220 | } |
| 221 | ||
| 222 | /************************************************************************** | |
| 223 | * Low Level drivers | |
| 224 | */ | |
| 225 | ||
| 226 | /* set the LEDs. Since this is used in the irq routine, the control job | |
| 227 | is issued with a timeout of 0. This means, that the job is queued without | |
| 228 | waiting for job completion */ | |
| 229 | ||
| 230 | static void usb_kbd_setled(struct usb_device *dev) | |
| 231 | { | |
| 8f8bd565 | 232 | struct usb_interface *iface; |
| affae2bf WD |
233 | iface = &dev->config.if_desc[0]; |
| 234 | leds=0; | |
| 235 | if(scroll_lock!=0) | |
| 236 | leds|=1; | |
| 237 | leds<<=1; | |
| 238 | if(caps_lock!=0) | |
| 239 | leds|=1; | |
| 240 | leds<<=1; | |
| 241 | if(num_lock!=0) | |
| 242 | leds|=1; | |
| 243 | usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
| 244 | USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
| 8f8bd565 | 245 | 0x200, iface->desc.bInterfaceNumber, (void *)&leds, 1, 0); |
| affae2bf WD |
246 | |
| 247 | } | |
| 248 | ||
| 249 | ||
| 250 | #define CAPITAL_MASK 0x20 | |
| 251 | /* Translate the scancode in ASCII */ | |
| 252 | static int usb_kbd_translate(unsigned char scancode,unsigned char modifier,int pressed) | |
| 253 | { | |
| 254 | unsigned char keycode; | |
| 255 | ||
| 256 | if(pressed==0) { | |
| 257 | /* key released */ | |
| 53677ef1 | 258 | repeat_delay=0; |
| affae2bf WD |
259 | return 0; |
| 260 | } | |
| 261 | if(pressed==2) { | |
| 262 | repeat_delay++; | |
| 263 | if(repeat_delay<REPEAT_DELAY) | |
| 264 | return 0; | |
| 265 | repeat_delay=REPEAT_DELAY; | |
| 266 | } | |
| 267 | keycode=0; | |
| eb6f214d | 268 | if((scancode>3) && (scancode<=0x1d)) { /* alpha numeric values */ |
| affae2bf WD |
269 | keycode=scancode-4 + 0x61; |
| 270 | if(caps_lock) | |
| 271 | keycode&=~CAPITAL_MASK; /* switch to capital Letters */ | |
| 272 | if(((modifier&(1<<LEFT_SHIFT))!=0)||((modifier&(1<<RIGHT_SHIFT))!=0)) { | |
| 273 | if(keycode & CAPITAL_MASK) | |
| 274 | keycode&=~CAPITAL_MASK; /* switch to capital Letters */ | |
| 275 | else | |
| 276 | keycode|=CAPITAL_MASK; /* switch to non capital Letters */ | |
| 277 | } | |
| 278 | } | |
| 279 | if((scancode>0x1d) && (scancode<0x3A)) { | |
| 280 | if(((modifier&(1<<LEFT_SHIFT))!=0)||((modifier&(1<<RIGHT_SHIFT))!=0)) /* shifted */ | |
| 281 | keycode=usb_kbd_numkey_shifted[scancode-0x1e]; | |
| 282 | else /* non shifted */ | |
| 283 | keycode=usb_kbd_numkey[scancode-0x1e]; | |
| 284 | } | |
| 4785a694 ZW |
285 | |
| 286 | if (ctrl) | |
| 287 | keycode = scancode - 0x3; | |
| 288 | ||
| affae2bf WD |
289 | if(pressed==1) { |
| 290 | if(scancode==NUM_LOCK) { | |
| 291 | num_lock=~num_lock; | |
| 292 | return 1; | |
| 293 | } | |
| 294 | if(scancode==CAPS_LOCK) { | |
| 295 | caps_lock=~caps_lock; | |
| 296 | return 1; | |
| 297 | } | |
| 298 | if(scancode==SCROLL_LOCK) { | |
| 299 | scroll_lock=~scroll_lock; | |
| 300 | return 1; | |
| 301 | } | |
| 302 | } | |
| 303 | if(keycode!=0) { | |
| 304 | USB_KBD_PRINTF("%c",keycode); | |
| 305 | usb_kbd_put_queue(keycode); | |
| 306 | } | |
| 307 | return 0; | |
| 308 | } | |
| 309 | ||
| 310 | /* Interrupt service routine */ | |
| 311 | static int usb_kbd_irq(struct usb_device *dev) | |
| 312 | { | |
| 313 | int i,res; | |
| 314 | ||
| 315 | if((dev->irq_status!=0)||(dev->irq_act_len!=8)) | |
| 316 | { | |
| 317 | USB_KBD_PRINTF("usb_keyboard Error %lX, len %d\n",dev->irq_status,dev->irq_act_len); | |
| 318 | return 1; | |
| 319 | } | |
| 320 | res=0; | |
| 4785a694 ZW |
321 | |
| 322 | switch (new[0]) { | |
| 323 | case 0x0: /* No combo key pressed */ | |
| 324 | ctrl = 0; | |
| 325 | break; | |
| 326 | case 0x01: /* Left Ctrl pressed */ | |
| 327 | case 0x10: /* Right Ctrl pressed */ | |
| 328 | ctrl = 1; | |
| 329 | break; | |
| 330 | } | |
| 331 | ||
| affae2bf WD |
332 | for (i = 2; i < 8; i++) { |
| 333 | if (old[i] > 3 && memscan(&new[2], old[i], 6) == &new[8]) { | |
| 334 | res|=usb_kbd_translate(old[i],new[0],0); | |
| 335 | } | |
| 336 | if (new[i] > 3 && memscan(&old[2], new[i], 6) == &old[8]) { | |
| 337 | res|=usb_kbd_translate(new[i],new[0],1); | |
| 338 | } | |
| 339 | } | |
| 340 | if((new[2]>3) && (old[2]==new[2])) /* still pressed */ | |
| 341 | res|=usb_kbd_translate(new[2],new[0],2); | |
| 342 | if(res==1) | |
| 343 | usb_kbd_setled(dev); | |
| 344 | memcpy(&old[0],&new[0], 8); | |
| 345 | return 1; /* install IRQ Handler again */ | |
| 346 | } | |
| 347 | ||
| 348 | /* probes the USB device dev for keyboard type */ | |
| 349 | static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum) | |
| 350 | { | |
| 8f8bd565 | 351 | struct usb_interface *iface; |
| affae2bf WD |
352 | struct usb_endpoint_descriptor *ep; |
| 353 | int pipe,maxp; | |
| 354 | ||
| 355 | if (dev->descriptor.bNumConfigurations != 1) return 0; | |
| 356 | iface = &dev->config.if_desc[ifnum]; | |
| 357 | ||
| 8f8bd565 TR |
358 | if (iface->desc.bInterfaceClass != 3) |
| 359 | return 0; | |
| 360 | if (iface->desc.bInterfaceSubClass != 1) | |
| 361 | return 0; | |
| 362 | if (iface->desc.bInterfaceProtocol != 1) | |
| 363 | return 0; | |
| 364 | if (iface->desc.bNumEndpoints != 1) | |
| 365 | return 0; | |
| affae2bf WD |
366 | |
| 367 | ep = &iface->ep_desc[0]; | |
| 368 | ||
| 369 | if (!(ep->bEndpointAddress & 0x80)) return 0; | |
| 370 | if ((ep->bmAttributes & 3) != 3) return 0; | |
| 371 | USB_KBD_PRINTF("USB KBD found set protocol...\n"); | |
| 372 | /* ok, we found a USB Keyboard, install it */ | |
| 373 | /* usb_kbd_get_hid_desc(dev); */ | |
| 8f8bd565 | 374 | usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0); |
| affae2bf | 375 | USB_KBD_PRINTF("USB KBD found set idle...\n"); |
| 8f8bd565 | 376 | usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0); |
| affae2bf WD |
377 | memset(&new[0], 0, 8); |
| 378 | memset(&old[0], 0, 8); | |
| 379 | repeat_delay=0; | |
| 380 | pipe = usb_rcvintpipe(dev, ep->bEndpointAddress); | |
| 381 | maxp = usb_maxpacket(dev, pipe); | |
| 382 | dev->irq_handle=usb_kbd_irq; | |
| 383 | USB_KBD_PRINTF("USB KBD enable interrupt pipe...\n"); | |
| 384 | usb_submit_int_msg(dev,pipe,&new[0], maxp > 8 ? 8 : maxp,ep->bInterval); | |
| 385 | return 1; | |
| 386 | } | |
| 387 | ||
| 388 | ||
| 389 | #if 0 | |
| 390 | struct usb_hid_descriptor { | |
| 391 | unsigned char bLength; | |
| 392 | unsigned char bDescriptorType; /* 0x21 for HID */ | |
| 393 | unsigned short bcdHID; /* release number */ | |
| 394 | unsigned char bCountryCode; | |
| 395 | unsigned char bNumDescriptors; | |
| 396 | unsigned char bReportDescriptorType; | |
| 397 | unsigned short wDescriptorLength; | |
| 398 | } __attribute__ ((packed)); | |
| 399 | ||
| 400 | /* | |
| 401 | * We parse each description item into this structure. Short items data | |
| 402 | * values are expanded to 32-bit signed int, long items contain a pointer | |
| 403 | * into the data area. | |
| 404 | */ | |
| 405 | ||
| 406 | struct hid_item { | |
| 407 | unsigned char format; | |
| 408 | unsigned char size; | |
| 409 | unsigned char type; | |
| 410 | unsigned char tag; | |
| 411 | union { | |
| 412 | unsigned char u8; | |
| 413 | char s8; | |
| 414 | unsigned short u16; | |
| 415 | short s16; | |
| 416 | unsigned long u32; | |
| 417 | long s32; | |
| 418 | unsigned char *longdata; | |
| 419 | } data; | |
| 420 | }; | |
| 421 | ||
| 422 | /* | |
| 423 | * HID report item format | |
| 424 | */ | |
| 425 | ||
| 426 | #define HID_ITEM_FORMAT_SHORT 0 | |
| 427 | #define HID_ITEM_FORMAT_LONG 1 | |
| 428 | ||
| 429 | /* | |
| 430 | * Special tag indicating long items | |
| 431 | */ | |
| 432 | ||
| 433 | #define HID_ITEM_TAG_LONG 15 | |
| 434 | ||
| 435 | ||
| affae2bf WD |
436 | static struct usb_hid_descriptor usb_kbd_hid_desc; |
| 437 | ||
| 438 | void usb_kbd_display_hid(struct usb_hid_descriptor *hid) | |
| 439 | { | |
| 440 | printf("USB_HID_DESC:\n"); | |
| 441 | printf(" bLenght 0x%x\n",hid->bLength); | |
| 442 | printf(" bcdHID 0x%x\n",hid->bcdHID); | |
| 443 | printf(" bCountryCode %d\n",hid->bCountryCode); | |
| 444 | printf(" bNumDescriptors 0x%x\n",hid->bNumDescriptors); | |
| 445 | printf(" bReportDescriptorType 0x%x\n",hid->bReportDescriptorType); | |
| 446 | printf(" wDescriptorLength 0x%x\n",hid->wDescriptorLength); | |
| 447 | } | |
| 448 | ||
| 449 | ||
| 450 | /* | |
| 451 | * Fetch a report description item from the data stream. We support long | |
| 452 | * items, though they are not used yet. | |
| 453 | */ | |
| 454 | ||
| 455 | static int fetch_item(unsigned char *start,unsigned char *end, struct hid_item *item) | |
| 456 | { | |
| 457 | if((end - start) > 0) { | |
| 458 | unsigned char b = *start++; | |
| 459 | item->type = (b >> 2) & 3; | |
| 460 | item->tag = (b >> 4) & 15; | |
| 461 | if (item->tag == HID_ITEM_TAG_LONG) { | |
| 462 | item->format = HID_ITEM_FORMAT_LONG; | |
| 463 | if ((end - start) >= 2) { | |
| 464 | item->size = *start++; | |
| 465 | item->tag = *start++; | |
| 466 | if ((end - start) >= item->size) { | |
| 467 | item->data.longdata = start; | |
| 468 | start += item->size; | |
| 469 | return item->size; | |
| 470 | } | |
| 471 | } | |
| 472 | } else { | |
| 473 | item->format = HID_ITEM_FORMAT_SHORT; | |
| 474 | item->size = b & 3; | |
| 475 | switch (item->size) { | |
| 476 | case 0: | |
| 477 | return item->size; | |
| 478 | case 1: | |
| 479 | if ((end - start) >= 1) { | |
| 480 | item->data.u8 = *start++; | |
| 481 | return item->size; | |
| 482 | } | |
| 483 | break; | |
| 484 | case 2: | |
| 485 | if ((end - start) >= 2) { | |
| c918261c | 486 | item->data.u16 = le16_to_cpu((unsigned short *)start); |
| affae2bf WD |
487 | start+=2; |
| 488 | return item->size; | |
| 489 | } | |
| 490 | case 3: | |
| 491 | item->size++; | |
| 492 | if ((end - start) >= 4) { | |
| c918261c | 493 | item->data.u32 = le32_to_cpu((unsigned long *)start); |
| affae2bf WD |
494 | start+=4; |
| 495 | return item->size; | |
| 496 | } | |
| 497 | } | |
| 498 | } | |
| 499 | } | |
| 500 | return -1; | |
| 501 | } | |
| 502 | ||
| 503 | /* | |
| 504 | * HID report descriptor item type (prefix bit 2,3) | |
| 505 | */ | |
| 506 | ||
| 507 | #define HID_ITEM_TYPE_MAIN 0 | |
| 508 | #define HID_ITEM_TYPE_GLOBAL 1 | |
| 509 | #define HID_ITEM_TYPE_LOCAL 2 | |
| 510 | #define HID_ITEM_TYPE_RESERVED 3 | |
| 511 | /* | |
| 512 | * HID report descriptor main item tags | |
| 513 | */ | |
| 514 | ||
| 515 | #define HID_MAIN_ITEM_TAG_INPUT 8 | |
| 516 | #define HID_MAIN_ITEM_TAG_OUTPUT 9 | |
| 517 | #define HID_MAIN_ITEM_TAG_FEATURE 11 | |
| 518 | #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10 | |
| 519 | #define HID_MAIN_ITEM_TAG_END_COLLECTION 12 | |
| 520 | /* | |
| 521 | * HID report descriptor main item contents | |
| 522 | */ | |
| 523 | ||
| 524 | #define HID_MAIN_ITEM_CONSTANT 0x001 | |
| 525 | #define HID_MAIN_ITEM_VARIABLE 0x002 | |
| 526 | #define HID_MAIN_ITEM_RELATIVE 0x004 | |
| 527 | #define HID_MAIN_ITEM_WRAP 0x008 | |
| 528 | #define HID_MAIN_ITEM_NONLINEAR 0x010 | |
| 529 | #define HID_MAIN_ITEM_NO_PREFERRED 0x020 | |
| 530 | #define HID_MAIN_ITEM_NULL_STATE 0x040 | |
| 531 | #define HID_MAIN_ITEM_VOLATILE 0x080 | |
| 532 | #define HID_MAIN_ITEM_BUFFERED_BYTE 0x100 | |
| 533 | ||
| 534 | /* | |
| 535 | * HID report descriptor collection item types | |
| 536 | */ | |
| 537 | ||
| 538 | #define HID_COLLECTION_PHYSICAL 0 | |
| 539 | #define HID_COLLECTION_APPLICATION 1 | |
| 540 | #define HID_COLLECTION_LOGICAL 2 | |
| 541 | /* | |
| 542 | * HID report descriptor global item tags | |
| 543 | */ | |
| 544 | ||
| 545 | #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0 | |
| 546 | #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1 | |
| 547 | #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2 | |
| 548 | #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3 | |
| 549 | #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4 | |
| 550 | #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5 | |
| 551 | #define HID_GLOBAL_ITEM_TAG_UNIT 6 | |
| 552 | #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7 | |
| 553 | #define HID_GLOBAL_ITEM_TAG_REPORT_ID 8 | |
| 554 | #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9 | |
| 555 | #define HID_GLOBAL_ITEM_TAG_PUSH 10 | |
| 556 | #define HID_GLOBAL_ITEM_TAG_POP 11 | |
| 557 | ||
| 558 | /* | |
| 559 | * HID report descriptor local item tags | |
| 560 | */ | |
| 561 | ||
| 562 | #define HID_LOCAL_ITEM_TAG_USAGE 0 | |
| 563 | #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1 | |
| 564 | #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2 | |
| 565 | #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3 | |
| 566 | #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4 | |
| 567 | #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5 | |
| 568 | #define HID_LOCAL_ITEM_TAG_STRING_INDEX 7 | |
| 569 | #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8 | |
| 570 | #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9 | |
| 571 | #define HID_LOCAL_ITEM_TAG_DELIMITER 10 | |
| 572 | ||
| 573 | ||
| affae2bf WD |
574 | static void usb_kbd_show_item(struct hid_item *item) |
| 575 | { | |
| 576 | switch(item->type) { | |
| 577 | case HID_ITEM_TYPE_MAIN: | |
| 578 | switch(item->tag) { | |
| 579 | case HID_MAIN_ITEM_TAG_INPUT: | |
| 580 | printf("Main Input"); | |
| 581 | break; | |
| 582 | case HID_MAIN_ITEM_TAG_OUTPUT: | |
| 583 | printf("Main Output"); | |
| 584 | break; | |
| 585 | case HID_MAIN_ITEM_TAG_FEATURE: | |
| 586 | printf("Main Feature"); | |
| 587 | break; | |
| 588 | case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: | |
| 589 | printf("Main Begin Collection"); | |
| 590 | break; | |
| 591 | case HID_MAIN_ITEM_TAG_END_COLLECTION: | |
| 592 | printf("Main End Collection"); | |
| 593 | break; | |
| 594 | default: | |
| 595 | printf("Main reserved %d",item->tag); | |
| 596 | break; | |
| 597 | } | |
| 598 | break; | |
| 599 | case HID_ITEM_TYPE_GLOBAL: | |
| 600 | switch(item->tag) { | |
| 601 | case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: | |
| 602 | printf("- Global Usage Page"); | |
| 603 | break; | |
| 604 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: | |
| 605 | printf("- Global Logical Minimum"); | |
| 606 | break; | |
| 607 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: | |
| 608 | printf("- Global Logical Maximum"); | |
| 609 | break; | |
| 610 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: | |
| 611 | printf("- Global physical Minimum"); | |
| 612 | break; | |
| 613 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: | |
| 614 | printf("- Global physical Maximum"); | |
| 615 | break; | |
| 616 | case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: | |
| 617 | printf("- Global Unit Exponent"); | |
| 618 | break; | |
| 619 | case HID_GLOBAL_ITEM_TAG_UNIT: | |
| 620 | printf("- Global Unit"); | |
| 621 | break; | |
| 622 | case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: | |
| 623 | printf("- Global Report Size"); | |
| 624 | break; | |
| 625 | case HID_GLOBAL_ITEM_TAG_REPORT_ID: | |
| 626 | printf("- Global Report ID"); | |
| 627 | break; | |
| 628 | case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: | |
| 629 | printf("- Global Report Count"); | |
| 630 | break; | |
| 631 | case HID_GLOBAL_ITEM_TAG_PUSH: | |
| 632 | printf("- Global Push"); | |
| 633 | break; | |
| 634 | case HID_GLOBAL_ITEM_TAG_POP: | |
| 635 | printf("- Global Pop"); | |
| 636 | break; | |
| 637 | default: | |
| 638 | printf("- Global reserved %d",item->tag); | |
| 639 | break; | |
| 640 | } | |
| 641 | break; | |
| 642 | case HID_ITEM_TYPE_LOCAL: | |
| 643 | switch(item->tag) { | |
| 644 | case HID_LOCAL_ITEM_TAG_USAGE: | |
| 645 | printf("-- Local Usage"); | |
| 646 | break; | |
| 647 | case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: | |
| 648 | printf("-- Local Usage Minimum"); | |
| 649 | break; | |
| 650 | case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: | |
| 651 | printf("-- Local Usage Maximum"); | |
| 652 | break; | |
| 653 | case HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX: | |
| 654 | printf("-- Local Designator Index"); | |
| 655 | break; | |
| 656 | case HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM: | |
| 657 | printf("-- Local Designator Minimum"); | |
| 658 | break; | |
| 659 | case HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM: | |
| 660 | printf("-- Local Designator Maximum"); | |
| 661 | break; | |
| 662 | case HID_LOCAL_ITEM_TAG_STRING_INDEX: | |
| 663 | printf("-- Local String Index"); | |
| 664 | break; | |
| 665 | case HID_LOCAL_ITEM_TAG_STRING_MINIMUM: | |
| 666 | printf("-- Local String Minimum"); | |
| 667 | break; | |
| 668 | case HID_LOCAL_ITEM_TAG_STRING_MAXIMUM: | |
| 669 | printf("-- Local String Maximum"); | |
| 670 | break; | |
| 671 | case HID_LOCAL_ITEM_TAG_DELIMITER: | |
| 672 | printf("-- Local Delimiter"); | |
| 673 | break; | |
| 674 | default: | |
| 675 | printf("-- Local reserved %d",item->tag); | |
| 676 | break; | |
| 677 | } | |
| 678 | break; | |
| 679 | default: | |
| 680 | printf("--- reserved %d",item->type); | |
| 681 | break; | |
| 682 | } | |
| 683 | switch(item->size) { | |
| 684 | case 1: | |
| 685 | printf(" %d",item->data.u8); | |
| 686 | break; | |
| 687 | case 2: | |
| 688 | printf(" %d",item->data.u16); | |
| 689 | break; | |
| 690 | case 4: | |
| 691 | printf(" %ld",item->data.u32); | |
| 692 | break; | |
| 693 | } | |
| 694 | printf("\n"); | |
| 695 | } | |
| 696 | ||
| 697 | ||
| affae2bf WD |
698 | static int usb_kbd_get_hid_desc(struct usb_device *dev) |
| 699 | { | |
| 700 | unsigned char buffer[256]; | |
| 701 | struct usb_descriptor_header *head; | |
| 702 | struct usb_config_descriptor *config; | |
| 703 | int index,len,i; | |
| 704 | unsigned char *start, *end; | |
| 705 | struct hid_item item; | |
| 706 | ||
| 707 | if(usb_get_configuration_no(dev,&buffer[0],0)==-1) | |
| 708 | return -1; | |
| 709 | head =(struct usb_descriptor_header *)&buffer[0]; | |
| 710 | if(head->bDescriptorType!=USB_DT_CONFIG) { | |
| 711 | printf(" ERROR: NOT USB_CONFIG_DESC %x\n",head->bDescriptorType); | |
| 712 | return -1; | |
| 713 | } | |
| 714 | index=head->bLength; | |
| 715 | config=(struct usb_config_descriptor *)&buffer[0]; | |
| c918261c | 716 | len=le16_to_cpu(config->wTotalLength); |
| affae2bf WD |
717 | /* Ok the first entry must be a configuration entry, now process the others */ |
| 718 | head=(struct usb_descriptor_header *)&buffer[index]; | |
| 719 | while(index+1 < len) { | |
| 720 | if(head->bDescriptorType==USB_DT_HID) { | |
| 721 | printf("HID desc found\n"); | |
| 722 | memcpy(&usb_kbd_hid_desc,&buffer[index],buffer[index]); | |
| c918261c CE |
723 | le16_to_cpus(&usb_kbd_hid_desc.bcdHID); |
| 724 | le16_to_cpus(&usb_kbd_hid_desc.wDescriptorLength); | |
| affae2bf WD |
725 | usb_kbd_display_hid(&usb_kbd_hid_desc); |
| 726 | len=0; | |
| 727 | break; | |
| 728 | } | |
| 729 | index+=head->bLength; | |
| 730 | head=(struct usb_descriptor_header *)&buffer[index]; | |
| 731 | } | |
| 732 | if(len>0) | |
| 733 | return -1; | |
| 734 | len=usb_kbd_hid_desc.wDescriptorLength; | |
| 735 | if((index = usb_get_class_descriptor(dev, 0, USB_DT_REPORT, 0, &buffer[0], len)) < 0) { | |
| 736 | printf("reading report descriptor failed\n"); | |
| 737 | return -1; | |
| 738 | } | |
| 739 | printf(" report descriptor (size %u, read %d)\n", len, index); | |
| d0ff51ba WD |
740 | start = &buffer[0]; |
| 741 | end = &buffer[len]; | |
| affae2bf WD |
742 | i=0; |
| 743 | do { | |
| 744 | index=fetch_item(start,end,&item); | |
| 745 | i+=index; | |
| 746 | i++; | |
| 747 | if(index>=0) | |
| 748 | usb_kbd_show_item(&item); | |
| 749 | ||
| 750 | start+=index; | |
| 751 | start++; | |
| 752 | } while(index>=0); | |
| 753 | ||
| 754 | } | |
| 755 | ||
| affae2bf | 756 | #endif |