📄 usb.lst
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236 1 {
C51 COMPILER V7.50 USB 11/03/2008 13:09:02 PAGE 5
237 2
238 2 Usb_sel_ep(0);
239 2 if (Usb_setup_packet_receive())
240 2 {
241 3
242 3 usb_do_enumeration();
243 3 }
244 2 }
245 1 }
246
247 /**************************************************************************
248 *
-
249 * Function Name:usb_do_enumeration
-
250 *
-
251 * Descriptions:
252 *
253 * Arguments:
254 *
255 * Returns: None
256 *
257 **************************************************************************/
258 void usb_do_enumeration (void)
259 {
260 1
261 1 Usb_sel_ep(0x00);
262 1 UsbCtrlCmd.bmRequestType = UEPDATX;
263 1 UsbCtrlCmd.bRequest = UEPDATX;
264 1 UsbCtrlCmd.wValue = UEPDATX;
265 1 UsbCtrlCmd.wValue |= UEPDATX<<8;
266 1 UsbCtrlCmd.wIndex =UEPDATX;
267 1 UsbCtrlCmd.wIndex |=UEPDATX<<8;
268 1 UsbCtrlCmd.wLength = UEPDATX;
269 1 UsbCtrlCmd.wLength |= UEPDATX<<8;
270 1
271 1 #if 0
printf("UsbCtrlCmd.bmRequestType = %x\n",UsbCtrlCmd.bmRequestType);
printf("UsbCtrlCmd.bRequest=%x\n",UsbCtrlCmd.bRequest);
printf("UsbCtrlCmd.wValue=%x\n",UsbCtrlCmd.wValue);
printf("UsbCtrlCmd.wIndex=%x\n",UsbCtrlCmd.wIndex);
printf("UsbCtrlCmd.wLength=%x\n",UsbCtrlCmd.wLength);
#endif
278 1
279 1 if((UsbCtrlCmd.bmRequestType&0x20) == 0x00){
280 2
281 2 usb_standard_request();
282 2
283 2 }
284 1 else if((UsbCtrlCmd.bmRequestType&0x20) == 0x20){
285 2 usb_class_request();
286 2
287 2 }
288 1 }
289
290
291
292 /**************************************************************************
293 *
-
294 * Function Name:usb_standard_request
C51 COMPILER V7.50 USB 11/03/2008 13:09:02 PAGE 6
-
295 *
-
296 * Descriptions:
297 *
298 * Arguments:
299 *
300 * Returns: None
301 *
302 **************************************************************************/
303 void usb_standard_request(void)
304 {
305 1
306 1 switch (UsbCtrlCmd.bRequest)
307 1 {
308 2
309 2 case USB_GET_DESCRIPTOR:
310 2
311 2 usb_GetDescriptor();
312 2 break;
313 2
314 2 case USB_GET_CONFIGURATION:
315 2
316 2 usb_get_configuration();
317 2 break;
318 2
319 2 case USB_SET_ADDRESS:
320 2 usb_set_address();
321 2 break;
322 2
323 2 case USB_SET_CONFIGURATION:
324 2 usb_set_configuration();
325 2 break;
326 2
327 2 case USB_CLEAR_FEATURE:
328 2 usb_clear_feature();
329 2 break;
330 2
331 2 case USB_SET_FEATURE:
332 2 usb_set_feature();
333 2 break;
334 2
335 2 case USB_GET_STATUS:
336 2 usb_get_status();
337 2 break;
338 2
339 2
340 2 default:
341 2 break;
342 2 }
343 1
344 1 }
345
346 /**************************************************************************
347 *
-
348 * Function Name:usb_class_request
-
349 *
-
350 * Descriptions:
351 *
C51 COMPILER V7.50 USB 11/03/2008 13:09:02 PAGE 7
352 * Arguments:
353 *
354 * Returns: None
355 *
356 **************************************************************************/
357 void usb_class_request(void)
358 {
359 1
360 1
361 1 switch (UsbCtrlCmd.bRequest)
362 1 {
363 2
364 2 case HID_SET_IDLE:
365 2 hid_set_idle();
366 2 break;
367 2 case USB_GET_MAX_LUN:
368 2 printf("USB_GET_MAX_LUN\n");
369 2 usb_get_max_lun();
370 2 break;
371 2 default:
372 2 break;
373 2 }
374 1
375 1
376 1 }
377 /**************************************************************************
378 *
-
379 * Function Name:usb_GetDescriptor
-
380 *
-
381 * Descriptions:
382 *
383 * Arguments:
384 *
385 * Returns: None
386 *
387 **************************************************************************/
388 void usb_GetDescriptor(void){
389 1
390 1 UINT8 data_to_send;
391 1 UINT8 des_type,i;
392 1 UINT8 desc_ptr = 0;
393 1 UINT8 zeroflag = 0;
394 1 UINT8 ret;
395 1 Usb_set_DIR_bit();
396 1
397 1 des_type = UsbCtrlCmd.wValue>>8;/*read wValue msb*/
398 1 switch (des_type)
399 1 {
400 2 case USB_DEVICE_DESC:
401 2 {
402 3
403 3
404 3 G_pucCtrlDataPointer = (UINT8 *)USB_DeviceDescriptor;
405 3 data_to_send = sizeof(USB_DeviceDescriptor);
406 3 break;
407 3 }
408 2
409 2 case USB_CONFIGURATION_DESC:
410 2 {
C51 COMPILER V7.50 USB 11/03/2008 13:09:02 PAGE 8
411 3
412 3 G_pucCtrlDataPointer = (UINT8 *)USB_ConfigurationDescriptor;
413 3 data_to_send = sizeof(USB_ConfigurationDescriptor);
414 3 break;
415 3 }
416 2
417 2 case USB_STRING_DESC:
418 2 {
419 3
420 3
421 3 des_type = UsbCtrlCmd.wValue & 0xff;
422 3 switch (des_type)
423 3 {
424 4 case USB_LANG_ID:
425 4 {
426 5
427 5 G_pucCtrlDataPointer = (UINT8 *)USB_LanguageIdString;
428 5 data_to_send = sizeof(USB_LanguageIdString);
429 5 break;
430 5 }
431 4
432 4 case USB_MAN_INDEX:
433 4 {
434 5
435 5 G_pucCtrlDataPointer = (UINT8 *)USB_ManufacturerString;
436 5 data_to_send = sizeof(USB_ManufacturerString);
437 5 break;
438 5 }
439 4 case USB_PROD_INDEX:
440 4 {
441 5
442 5 G_pucCtrlDataPointer = (UINT8 *)USB_ProductString;
443 5 data_to_send = sizeof(USB_ProductString);
444 5 break;
445 5 }
446 4 case USB_SN_INDEX:
447 4 {
448 5 G_pucCtrlDataPointer = (UINT8 *)USB_SerialNumberString;
449 5 data_to_send = sizeof(USB_SerialNumberString);
450 5 break;
451 5 }
452 4 default:
453 4 {
454 5 return;
455 5 }
456 4 }
457 3 break;
458 3 }
459 2 default:
460 2 {
461 3 return;
462 3 }
463 2 }
464 1
465 1
466 1 if (UsbCtrlCmd.wLength > data_to_send)
467 1 {
468 2 if ((data_to_send % 8) == 0)
469 2 {
470 3 zeroflag = TRUE;
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