USB host library, support isochronous,bulk,interrupt and control.
Dependents: BaseUsbHost_example BaseJpegDecode_example SimpleJpegDecode_example
Import programBaseUsbHost_example
BaseUsbHost example program
BaseUsbHostUvc.cpp
- Committer:
- va009039
- Date:
- 2013-01-06
- Revision:
- 3:ae77d63a1eda
- Parent:
- 2:fe1e62051d88
- Child:
- 4:d931d24c2f81
File content as of revision 3:ae77d63a1eda:
// BaseUsbHostUvc.cpp 2012/12/11 #include "mbed.h" #include "rtos.h" #include "BaseUsbHost.h" #define DEBUG #include "BaseUsbHostDebug.h" #define TEST #include "BaseUsbHostTest.h" void BaseUvc::poll(int millisec) { HCITD* itd = m_isoEp->isochronousReveive(millisec); if (itd) { uint8_t cc = itd->Control>>28; report_cc_count[cc]++; if (cc == 0) { // ConditionCode //DBG_ITD(itd); uint16_t frame = itd->Control & 0xffff; int fc = ((itd->Control>>24)&7)+1; uint8_t* buf = const_cast<uint8_t*>(itd->buf); int mps = m_isoEp->m_PacketSize; for(int i = 0; i < fc; i++) { uint16_t pswn = itd->OffsetPSW[i]; cc = pswn>>12; if (cc == 0 || cc == 9) { int len = pswn & 0x7ff; onResult(frame, buf, len); } report_ps_cc_count[cc]++; buf += mps; frame++; } } m_isoEp->delete_HCTD(reinterpret_cast<HCTD*>(itd)); } } int BaseUvc::Control(int req, int cs, int index, uint8_t* buf, int size) { TEST_ASSERT(m_ctlEp); int rc; if (req == SET_CUR) { rc = m_ctlEp->controlSend( USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, req, cs<<8, index, buf, size); return rc; } rc = m_ctlEp->controlReceive( USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, req, cs<<8, index, buf, size); return rc; } void BaseUvc::onResult(uint16_t frame, uint8_t* buf, int len) { if(m_pCbItem && m_pCbMeth) (m_pCbItem->*m_pCbMeth)(frame, buf, len); else if(m_pCb) m_pCb(frame, buf, len); } void BaseUvc::setOnResult( void (*pMethod)(uint16_t, uint8_t*, int) ) { m_pCb = pMethod; m_pCbItem = NULL; m_pCbMeth = NULL; } void BaseUvc::clearOnResult() { m_pCb = NULL; m_pCbItem = NULL; m_pCbMeth = NULL; }