Simple USBHost WebCam test program
Dependencies: F401RE-USBHost mbed
Fork of KL46Z-USBHostC270_example by
WebカメラからJPEG画像を読み取るテストプログラムです。
使い方はKL46Z-USBHostC270_exampleと同じです。
動作確認カメラ: Logitech C270, Logitech C210, Logitech Q200R(Qcam Orbit AF), LifeCam VX-500
KL46Z_USBHostC270/BaseUvc.cpp
- Committer:
- va009039
- Date:
- 2014-01-31
- Revision:
- 2:2a40888db9fc
- Parent:
- 1:22304b8f8395
File content as of revision 2:2a40888db9fc:
// BaseUvc.cpp #include "USBHostConf.h" #include "USBHost.h" #include "BaseUvc.h" void BaseUvc::poll() { uint8_t buf[ep_iso_in->getSize()]; int result = host->IsochronousRead(ep_iso_in, buf, sizeof(buf)); if (result >= 0) { uint16_t frame = 0; onResult(frame, buf, ep_iso_in->getLengthTransferred()); } } USB_TYPE BaseUvc::Control(int req, int cs, int index, uint8_t* buf, int size) { if (req == SET_CUR) { return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, req, cs<<8, index, buf, size); } return host->controlRead(dev, USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, req, cs<<8, index, buf, size); } USB_TYPE BaseUvc::setInterfaceAlternate(uint8_t intf, uint8_t alt) { return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE, SET_INTERFACE, alt, intf, NULL, 0); } 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; }