📄 host_811.lst
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643 int EnumUsbDev(BYTE usbaddr)
644 {
645 1 int i; // always reset USB transfer address
646 1 xdata BYTE uAddr = 0; // for enumeration to Address #0
647 1 xdata BYTE epLen;
648 1 xdata WORD strLang;
649 1
650 1 //------------------------------------------------
651 1 // Reset only Slave device attached directly
652 1 //------------------------------------------------
653 1 uDev[0].wPayLoad[0] = 64; // default 64-byte payload of Endpoint 0, address #0
654 1 if(usbaddr == 1) // bus reset for the device attached to SL811HS only
655 1 USBReset(); // that will always have the USB address = 0x01 (for a hub)
656 1 EZUSB_Delay(25);
657 1
658 1 //------------------------------------------------
659 1 // Get USB Device Descriptors on EP0 & Addr 0
660 1 // with default 64-byte payload
661 1 //------------------------------------------------
662 1 pDev =(pDevDesc)DBUF; // ask for 64 bytes on Addr #0
663 1 if (!GetDesc(uAddr,DEVICE,0,18,DBUF)) // and determine the wPayload size
664 1 return FALSE; // get correct wPayload of Endpoint 0
665 1 uDev[usbaddr].wPayLoad[0]=pDev->bMaxPacketSize0;// on current non-zero USB address
666 1
667 1 //------------------------------------------------
668 1 // Set Slave USB Device Address
669 1 //------------------------------------------------
670 1 if (!SetAddress(usbaddr)) // set to specific USB address
671 1 return FALSE; //
672 1 uAddr = usbaddr; // transfer using this new address
673 1
674 1 //------------------------------------------------
C51 COMPILER V7.50 HOST_811 10/27/2005 20:00:37 PAGE 12
675 1 // Get USB Device Descriptors on EP0 & Addr X
676 1 //------------------------------------------------
677 1 if (!GetDesc(uAddr,DEVICE,0,(pDev->bLength),DBUF))
678 1 return FALSE; // For this current device:
679 1 uDev[usbaddr].wVID = pDev->idVendor; // save VID
680 1 uDev[usbaddr].wPID = pDev->idProduct; // save PID
681 1 uDev[usbaddr].iMfg = pDev->iManufacturer; // save Mfg Index
682 1 uDev[usbaddr].iPdt = pDev->iProduct; // save Product Index
683 1
684 1 //------------------------------------------------
685 1 // Get String Descriptors
686 1 //------------------------------------------------
687 1 pStr = (pStrDesc)DBUF;
688 1 if (!GetDesc(uAddr,STRING,0,4,DBUF)) // Get string language
689 1 return FALSE;
690 1 strLang = pStr->wLang; // get iManufacturer String length
691 1 if (!GetDesc(uAddr,(WORD)(uDev[usbaddr].iMfg<<8)|STRING,strLang,4,DBUF))
692 1 return FALSE; // get iManufacturer String descriptors
693 1 if (!GetDesc(uAddr,(WORD)(uDev[usbaddr].iMfg<<8)|STRING,strLang,pStr->bLength,DBUF))
694 1 return FALSE;
695 1
696 1 //------------------------------------------------
697 1 // Get Slave USB Configuration Descriptors
698 1 //------------------------------------------------
699 1 pCfg = (pCfgDesc)DBUF;
700 1 if (!GetDesc(uAddr,CONFIGURATION,0,8,DBUF))
701 1 return FALSE;
702 1 if (!GetDesc(uAddr,CONFIGURATION,0,WordSwap(pCfg->wLength),DBUF))
703 1 return FALSE;
704 1
705 1 pIfc = (pIntfDesc)(DBUF + 9); // point to Interface Descp
706 1 uDev[usbaddr].bClass = pIfc->iClass; // update to class type
707 1 uDev[usbaddr].bNumOfEPs = (pIfc->bEndPoints <= MAX_EP) ? pIfc->bEndPoints : MAX_EP;
708 1
709 1 //------------------------------------------------
710 1 // Set configuration (except for HUB device)
711 1 //------------------------------------------------
712 1 if (uDev[usbaddr].bClass!=HUBCLASS) // enumerating a FS/LS non-hub device
713 1 if (!Set_Configuration(uAddr,DEVICE)) // connected directly to SL811HS
714 1 return FALSE;
715 1
716 1 //------------------------------------------------
717 1 // For each slave endpoints, get its attributes
718 1 // Excluding endpoint0, only data endpoints
719 1 //------------------------------------------------
720 1 epLen = 0;
721 1 for (i=1; i<=uDev[usbaddr].bNumOfEPs; i++) // For each data endpoint
722 1 {
723 2 pEnp = (pEPDesc)(DBUF + 9 + 9 + epLen); // point to Endpoint Descp(non-HID)
724 2 if(pIfc->iClass == HIDCLASS)
725 2 pEnp = (pEPDesc)(DBUF + 9 + 9 + 9 + epLen); // update pointer to Endpoint(HID)
726 2 uDev[usbaddr].bEPAddr[i] = pEnp->bEPAdd; // Ep address and direction
727 2 uDev[usbaddr].bAttr[i] = pEnp->bAttr; // Attribute of Endpoint
728 2 uDev[usbaddr].wPayLoad[i] = pEnp->wPayLoad; // Payload of Endpoint
729 2 uDev[usbaddr].bInterval[i] = pEnp->bInterval; // Polling interval
730 2 uDev[usbaddr].bData1[i] = 0; // init data toggle
731 2 epLen += 7;
732 2 }
733 1
734 1 //------------------------------------------------
735 1 // Get Hid Report Descriptors
736 1 //------------------------------------------------
C51 COMPILER V7.50 HOST_811 10/27/2005 20:00:37 PAGE 13
737 1 if(pIfc->iClass == HIDCLASS)
738 1 {
739 2 pHid = (pHidDesc)(DBUF + 9 + 9); // point to HID-CLASS descp
740 2 if (!GetHid_Desc(uAddr,HID_REPORT,pHid->wItemLength,DBUF))
741 2 return FALSE;
742 2 }
743 1
744 1 //------------------------------------------------
745 1 // Get HUB Class Specific Descriptor (per port switching)
746 1 //------------------------------------------------
747 1 if(uDev[usbaddr].bClass==HUBCLASS)
748 1 { // enumerating a HUB device
749 2 pHub =(pHubDesc)DBUF; // Ask for 71 bytes ???
750 2 if (!GetHubDesc(uAddr,0x00,0x47,DBUF))
751 2 return FALSE; // Get Hub Desriptor
752 2 if (!GetStatus(uAddr,STATUS))
753 2 return FALSE; // Get Status
754 2 if (!Set_Configuration(uAddr,DEVICE))
755 2 return FALSE; // Set configuration
756 2
757 2 pNumPort = pHub->bNbrPort; // save no. of ports available
758 2 for(i=1; i<=pNumPort; i++) // ClearPortFeature: C_PORT_CONNECTION off
759 2 if(!PortFeature(uAddr,CLEAR_FEATURE, C_PORT_CONNECTION,i))
760 2 return FALSE;
761 2
762 2 for(i=1; i<=pNumPort; i++) // SetPortFeature: PORT_POWER on
763 2 {
764 3 if(!PortFeature(uAddr,SET_FEATURE, PORT_POWER, i))
765 3 return FALSE;
766 3 }
767 2
768 2 for(i=1; i<=pHub->bNbrPort; i++) // GetPortStatus(wHubStatus,wHubChange)
769 2 if( !GetPortStatus(uAddr,i,STATUS) ) //
770 2 return FALSE; //
771 2
772 2 for(i=2;i<=pNumPort+1;i++) // clear port present status
773 2 { // address #2..#5 only
774 3 uHub.bPortPresent[i] = 0; // clear status
775 3 uHub.bPortNumber[i] = 0; //
776 3 }
777 2 HUB_DEVICE = TRUE; // Set Hub flag, as long as a hub is attached
778 2 } // directly to the HUB_DEVICE will be set
779 1
780 1 return TRUE;
781 1 }
782
783 //*****************************************************************************************
784 // Full-speed and low-speed detect - Device atttached directly to SL811HS
785 //*****************************************************************************************
786 int speed_detect()
787 {
788 1 pNumPort = 0; // zero no. of downstream ports
789 1 SLAVE_FOUND = FALSE; // Clear USB device found flag
790 1 FULL_SPEED = TRUE; // Assume full speed device
791 1 HUB_DEVICE = FALSE; // not HUB device
792 1 DATA_STOP = FALSE; //
793 1
794 1 SL811Write(cSOFcnt,0xAE); // Set SOF high counter, no change D+/D-, host mode
795 1 SL811Write(CtrlReg,0x08); // Reset USB engine, full-speed setup, suspend disable
796 1 EZUSB_Delay(10); // Delay for HW stablize
797 1 SL811Write(CtrlReg,0x00); // Set to normal operation
798 1 SL811Write(IntEna,0x61); // USB-A, Insert/Remove, USB_Resume.
C51 COMPILER V7.50 HOST_811 10/27/2005 20:00:37 PAGE 14
799 1 SL811Write(IntStatus,INT_CLEAR); // Clear Interrupt enable status
800 1 EZUSB_Delay(10); // Delay for HW stablize
801 1
802 1 if(SL811Read(IntStatus)&USB_RESET)
803 1 { // test for USB reset
804 2 SL811Write(IntStatus,INT_CLEAR);// Clear In⌨️ 快捷键说明
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