BaseUvc.cpp

00001 // BaseUvc.cpp
00002 #include "USBHostConf.h"
00003 #include "USBHost.h"
00004 #include "BaseUvc.h"
00005 
00006 void BaseUvc::poll() {
00007     uint8_t buf[ep_iso_in->getSize()];
00008     int result = host->isochronousReadNB(ep_iso_in, buf, sizeof(buf));
00009     if (result >= 0) {
00010         const uint16_t frame = 0;
00011         onResult(frame, buf, ep_iso_in->getLengthTransferred());
00012     }
00013 }
00014 
00015 USB_TYPE BaseUvc::Control(int req, int cs, int index, uint8_t* buf, int size) {
00016     if (req == SET_CUR) {    
00017         return host->controlWrite(dev,
00018                     USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, 
00019                     req, cs<<8, index, buf, size);
00020     }
00021     return host->controlRead(dev,
00022                 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, 
00023                 req, cs<<8, index, buf, size);
00024 }
00025 
00026 USB_TYPE BaseUvc::setInterfaceAlternate(uint8_t intf, uint8_t alt) {
00027     return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE,
00028                                    SET_INTERFACE, alt, intf, NULL, 0);
00029 }
00030 
00031 void BaseUvc::onResult(uint16_t frame, uint8_t* buf, int len)
00032 {
00033   if(m_pCbItem && m_pCbMeth)
00034     (m_pCbItem->*m_pCbMeth)(frame, buf, len);
00035   else if(m_pCb)
00036     m_pCb(frame, buf, len);
00037 }
00038 
00039 void BaseUvc::setOnResult( void (*pMethod)(uint16_t, uint8_t*, int) )
00040 {
00041     m_pCb = pMethod;
00042     m_pCbItem = NULL;
00043     m_pCbMeth = NULL;
00044 }
00045     
00046 void BaseUvc::clearOnResult()
00047 {
00048     m_pCb = NULL;
00049     m_pCbItem = NULL;
00050     m_pCbMeth = NULL;
00051 }
00052