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
Diff: KL46Z-USBHostC270/BaseUvc.cpp
- Revision:
- 0:a72d9b047d8d
diff -r 000000000000 -r a72d9b047d8d KL46Z-USBHostC270/BaseUvc.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/KL46Z-USBHostC270/BaseUvc.cpp Mon Jan 27 11:07:34 2014 +0000 @@ -0,0 +1,56 @@ +// BaseUvc.cpp +#include "USBHostConf.h" +#include "USBHost.h" +//#include "USBIsochronous.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, result); + } +} + +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; +} +