📄 host_811.lst
字号:
359 {
360 1 BYTE pid = PID_IN;
361 1 WORD wLen = WordSwap(setup->wLength); // swap back for correct length
362 1 BYTE ep0 = 0; // always endpoint zero
363 1 ////////////////////////////////////////////////////////////////////////
364 1 //----------------------------------------------------
C51 COMPILER V8.08 HOST_811 04/25/2009 23:03:20 PAGE 7
365 1 // SETUP token with 8-byte request on endpoint 0
366 1 //----------------------------------------------------
367 1 if (!usbXfer(usbaddr, ep0, PID_SETUP,payload, 8, (BYTE*)setup))
368 1 return FALSE;
369 1
370 1 //----------------------------------------------------
371 1 // IN or OUT data stage on endpoint 0
372 1 //----------------------------------------------------
373 1 if (wLen) // if there are data for transfer
374 1 {
375 2 if (setup->bmRequest & 0x80) // host-to-device : IN token
376 2 {
377 3 pid = PID_OUT;
378 3 if(!usbXfer(usbaddr, ep0, PID_IN,payload, wLen, pData))
379 3 return FALSE;
380 3 payload = 0;
381 3 }
382 2 else // device-to-host : OUT token
383 2 {
384 3 if(!usbXfer(usbaddr, ep0, PID_OUT,payload, wLen, pData))
385 3 return FALSE;
386 3 }
387 2 }
388 1
389 1 //----------------------------------------------------
390 1 // Status stage IN or OUT zero-length data packet
391 1 //----------------------------------------------------
392 1 if(!usbXfer(usbaddr, ep0, pid,payload, 0, NULL))
393 1 return FALSE;
394 1
395 1 return TRUE;
396 1 }
397
398 //*****************************************************************************************
399 // Control endpoint
400 //*****************************************************************************************
401 unsigned char VendorCmd(BYTE usbaddr,BYTE bReq,BYTE bCmd,WORD wValue,WORD wIndex,WORD wLen,BYTE *pData)
402 {
403 1 SetupPKG setup;
404 1 setup.bmRequest = bReq;
405 1 setup.bRequest = bCmd;
406 1 setup.wValue = wValue;
407 1 setup.wIndex = wIndex;
408 1 setup.wLength = WordSwap(wLen);
409 1 return ep0Xfer(usbaddr, uDev.wPayLoad[0], &setup, pData);
410 1 }
411
412 //*****************************************************************************************
413 // Set Device Address :
414 //*****************************************************************************************
415 unsigned char SetAddress(WORD addr)
416 {
417 1 return VendorCmd(0,0,SET_ADDRESS, WordSwap(addr), 0, 0, NULL);
418 1 }
419
420 //*****************************************************************************************
421 // Set Device Configuration :
422 //*****************************************************************************************
423 unsigned char SetConfiguration(BYTE usbaddr, WORD wVal)
424 {
425 1 return VendorCmd(usbaddr, 0, SET_CONFIG, WordSwap(wVal), 0, 0, NULL);
426 1 }
C51 COMPILER V8.08 HOST_811 04/25/2009 23:03:20 PAGE 8
427
428 //*****************************************************************************************
429 // Get Device Descriptor : Device, Configuration, String
430 //*****************************************************************************************
431 unsigned char GetDesc(BYTE usbaddr, WORD wValue, WORD wIndex, WORD wLen, BYTE *desc)
432 {
433 1 return VendorCmd(usbaddr, 0x80, GET_DESCRIPTOR, wValue, wIndex, wLen, desc);
434 1 }
435 //*****************************************************************************************
436 // USB Device Enumeration Process
437 // Support 1 confguration and interface #0 and alternate setting #0 only
438 // Support up to 1 control endpoint + 4 data endpoint only
439 //*****************************************************************************************
440 unsigned char EnumUsbDev(BYTE usbaddr)//地址总是1；
441 {
442 1 BYTE i; // always reset USB transfer address
443 1 BYTE uAddr = 0; // for enumeration to Address #0
444 1 BYTE epLen;
445 1 pDevDesc pDev; //四个描述符；
446 1 pCfgDesc pCfg;
447 1 pIntfDesc pIfc;
448 1 pEPDesc pEnp;
449 1 ////////////////////////////////////////////////////////////////////////枚举在端点0，地址0发生；
450 1 uDev.wPayLoad[0] = 64; // default 64-byte payload of Endpoint 0, address #0
451 1 if(usbaddr == 1) // bus reset for the device attached to SL811HS only
452 1 USBReset(); // that will always have the USB address = 0x01 (for a hub)
453 1 pDev =(pDevDesc)bBUF; // bBUF是单片机上的缓冲去；
454 1 if (!GetDesc(uAddr,DEVICE,0,18,bBUF))
455 1 // and determine the wPayload size
456 1 return FALSE; // get correct wPayload of Endpoint 0
457 1 uDev.wPayLoad[0]=pDev->bMaxPacketSize0; // on current non-zero USB address
458 1 if (!SetAddress(usbaddr)) // set to specific USB address
459 1 return FALSE; //
460 1 uAddr = usbaddr; // transfer using this new address
461 1 if (!GetDesc(uAddr,DEVICE,0,(pDev->bLength),bBUF))
462 1 return FALSE; // For this current device:
463 1 uDev.wVID = pDev->idVendor; // save VID
464 1 uDev.wPID = pDev->idProduct; // save PID
465 1 uDev.iMfg = pDev->iManufacturer; // save Mfg Index
466 1 uDev.iPdt = pDev->iProduct; // save Product Index
467 1 pCfg = (pCfgDesc)bBUF;
468 1 if (!GetDesc(uAddr,CONFIGURATION,0,8,bBUF))
469 1 return FALSE;
470 1 if (!GetDesc(uAddr,CONFIGURATION,0,WordSwap(pCfg->wLength),bBUF))
471 1 return FALSE;
472 1
473 1 pIfc = (pIntfDesc)(bBUF + 9); // point to Interface Descp
474 1 uDev.bClass = pIfc->iClass; // update to class type
475 1 uDev.bNumOfEPs = (pIfc->bEndPoints<=MAX_EP) ? pIfc->bEndPoints : MAX_EP;
476 1 if (!SetConfiguration(uAddr,DEVICE)) // connected directly to SL811HS
477 1 return FALSE;
478 1 if(uDev.bClass==8)
479 1 {
480 2 USB_Control.bMassDevice=TRUE;
481 2 }
482 1 epLen = 0;
483 1 for (i=1; i<=uDev.bNumOfEPs; i++) // For each data endpoint
484 1 {
485 2 pEnp = (pEPDesc)(bBUF + 9 + 9 + epLen); // point to Endpoint Descp(non-HID)
486 2 uDev.bEPAddr[i] = pEnp->bEPAdd; // Ep address and direction
487 2 uDev.bAttr[i] = pEnp->bAttr; // Attribute of Endpoint
488 2 uDev.wPayLoad[i] = pEnp->wPayLoad; // Payload of Endpoint
C51 COMPILER V8.08 HOST_811 04/25/2009 23:03:20 PAGE 9
489 2 uDev.bInterval[i] = pEnp->bInterval; // Polling interval
490 2 uDev.bData1[i] = 0; // init data toggleu
491 2 epLen += 7;
492 2 if(uDev.bAttr[i]==0x2)
493 2 {
494 3 if(uDev.bEPAddr[i]&0x80)
495 3 uDev.bEpin=uDev.bEPAddr[i];
496 3 else
497 3 uDev.bEpOut=uDev.bEPAddr[i];
498 3 }
499 2 }
500 1 return TRUE;
501 1 }
502 //--------------------------------------------------------------------------
503 //SL811H variables initialization
504 //--------------------------------------------------------------------------
505
506
507
508 void sl811h_init(void)
509 { USB_Control.SLAVE_FOUND = FALSE;
510 1 USB_Control.SLAVE_ENUMERATED = FALSE;
511 1 USB_Control.SLAVE_ONLINE = FALSE;
512 1 USB_Control.SLAVE_REMOVED=FALSE;
513 1 USB_Control.DATA_STOP=FALSE;
514 1 USB_Control.TIMEOUT_ERR=FALSE;
515 1 USB_Control.bMassDevice = FALSE;
516 1 SL811Write(IntEna,0x20); //只允许设备移入和移除；
517 1 SL811Write(IntStatus,INT_CLEAR);
518 1 SL811Write(cSOFcnt,0xae);
519 1 DelayMs(10);
520 1 SL811Write(IntStatus,INT_CLEAR);
521 1
522 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 2318 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = 259 84
PDATA SIZE = ---- ----
DATA SIZE = 1 ----
IDATA SIZE = 45 1
BIT SIZE = ---- ----
EDATA SIZE = ---- ----
HDATA SIZE = ---- ----
XDATA CONST SIZE = ---- ----
FAR CONST SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -