USB host library, support isochronous,bulk,interrupt and control.
Dependents: BaseUsbHost_example BaseJpegDecode_example SimpleJpegDecode_example
Import programBaseUsbHost_example
BaseUsbHost example program
Diff: BaseUsbHostUvc.cpp
- Revision:
- 1:3b7bc4f87a61
- Child:
- 2:fe1e62051d88
diff -r b7d6879637a8 -r 3b7bc4f87a61 BaseUsbHostUvc.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BaseUsbHostUvc.cpp Wed Dec 05 13:23:06 2012 +0000 @@ -0,0 +1,74 @@ +// BaseUsbHostUvc.cpp 2012/12/5 +#include "mbed.h" +#include "rtos.h" +#include "BaseUsbHost.h" +#define DEBUG +#include "BaseUsbHostDebug.h" +#define TEST +#include "BaseUsbHostTest.h" + +void BaseUvc::poll() +{ + HCITD* itd = m_isoEp->isochronousReveive(); + 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; + uint8_t* buf = const_cast<uint8_t*>(itd->buf); + int mps = m_isoEp->m_PacketSize; + for(int i = 0; i < m_isoEp->m_FrameCount; 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; +} +