Norimasa Okamoto / Mbed 2 deprecated LPC4088-USBHostC270_example

Simple USBHost WebCam for EA LPC4088 QSB/LPC1768 test program

Dependencies:   LPC4088-USBHost mbed

EA LPC4088 QSB/LPC1768をUSBホストにしてWebカメラからJPEG画像を読み取るテストプログラムです。

The usage is the same as KL46Z-USBHostC270_example.
使い方はKL46Z-USBHostC270_exampleと同じです。
動作確認： Logitech C270,Logitech Q200R(Qcam Orbit AF)
/media/uploads/va009039/lpc4088-c270-480x360.jpg

LPC4088-USBHostC270/BaseUvc.cpp@1:1bb68ef9aa77, 2014-04-25 (annotated)

Committer:
va009039
Date:
Fri Apr 25 05:55:06 2014 +0000
Revision:
1:1bb68ef9aa77
Parent:
0:c972ee42b455 
update LPC4088-USBHost library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 0:c972ee42b455 1 // BaseUvc.cpp
va009039 0:c972ee42b455 2 #include "USBHostConf.h"
va009039 0:c972ee42b455 3 #include "USBHost.h"
va009039 0:c972ee42b455 4 #include "BaseUvc.h"
va009039 0:c972ee42b455 5
va009039 0:c972ee42b455 6 void BaseUvc::poll(int millisec) {
va009039 0:c972ee42b455 7 HCITD* itd = m_isoEp->isochronousReceive(millisec);
va009039 0:c972ee42b455 8 if (itd) {
va009039 0:c972ee42b455 9 uint8_t cc = itd->ConditionCode();
va009039 0:c972ee42b455 10 report_cc_count[cc]++;
va009039 0:c972ee42b455 11 if (cc == 0) {
va009039 0:c972ee42b455 12 uint16_t frame = itd->StartingFrame();
va009039 0:c972ee42b455 13 int fc = itd->FrameCount();
va009039 0:c972ee42b455 14 uint8_t* buf = const_cast<uint8_t*>(itd->buf);
va009039 0:c972ee42b455 15 int mps = m_isoEp->getSize();
va009039 0:c972ee42b455 16 for(int i = 0; i < fc; i++) {
va009039 0:c972ee42b455 17 uint16_t psw = itd->OffsetPSW[i];
va009039 0:c972ee42b455 18 cc = psw>>12;
va009039 0:c972ee42b455 19 if (cc == 0 || cc == 9) {
va009039 0:c972ee42b455 20 int len = psw & 0x7ff;
va009039 0:c972ee42b455 21 onResult(frame, buf, len);
va009039 0:c972ee42b455 22 }
va009039 0:c972ee42b455 23 report_ps_cc_count[cc]++;
va009039 0:c972ee42b455 24 buf += mps;
va009039 0:c972ee42b455 25 frame++;
va009039 0:c972ee42b455 26 }
va009039 0:c972ee42b455 27 }
va009039 0:c972ee42b455 28 delete itd;
va009039 0:c972ee42b455 29 }
va009039 0:c972ee42b455 30 }
va009039 0:c972ee42b455 31
va009039 0:c972ee42b455 32 USB_TYPE BaseUvc::Control(int req, int cs, int index, uint8_t* buf, int size)
va009039 0:c972ee42b455 33 {
va009039 0:c972ee42b455 34 if (req == SET_CUR) {
va009039 0:c972ee42b455 35 return host->controlWrite(dev,
va009039 0:c972ee42b455 36 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE,
va009039 0:c972ee42b455 37 req, cs<<8, index, buf, size);
va009039 0:c972ee42b455 38 }
va009039 0:c972ee42b455 39 return host->controlRead(dev,
va009039 0:c972ee42b455 40 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE,
va009039 0:c972ee42b455 41 req, cs<<8, index, buf, size);
va009039 0:c972ee42b455 42 }
va009039 0:c972ee42b455 43
va009039 0:c972ee42b455 44 USB_TYPE BaseUvc::setInterfaceAlternate(uint8_t intf, uint8_t alt)
va009039 0:c972ee42b455 45 {
va009039 0:c972ee42b455 46 return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE,
va009039 0:c972ee42b455 47 SET_INTERFACE, alt, intf, NULL, 0);
va009039 0:c972ee42b455 48 }
va009039 0:c972ee42b455 49
va009039 0:c972ee42b455 50 void BaseUvc::onResult(uint16_t frame, uint8_t* buf, int len)
va009039 0:c972ee42b455 51 {
va009039 0:c972ee42b455 52 if(m_pCbItem && m_pCbMeth)
va009039 0:c972ee42b455 53 (m_pCbItem->*m_pCbMeth)(frame, buf, len);
va009039 0:c972ee42b455 54 else if(m_pCb)
va009039 0:c972ee42b455 55 m_pCb(frame, buf, len);
va009039 0:c972ee42b455 56 }
va009039 0:c972ee42b455 57
va009039 0:c972ee42b455 58 void BaseUvc::setOnResult( void (*pMethod)(uint16_t, uint8_t*, int) ) {
va009039 0:c972ee42b455 59 m_pCb = pMethod;
va009039 0:c972ee42b455 60 m_pCbItem = NULL;
va009039 0:c972ee42b455 61 m_pCbMeth = NULL;
va009039 0:c972ee42b455 62 }
va009039 0:c972ee42b455 63
va009039 0:c972ee42b455 64 void BaseUvc::clearOnResult() {
va009039 0:c972ee42b455 65 m_pCb = NULL;
va009039 0:c972ee42b455 66 m_pCbItem = NULL;
va009039 0:c972ee42b455 67 m_pCbMeth = NULL;
va009039 0:c972ee42b455 68 }
va009039 0:c972ee42b455 69
va009039 0:c972ee42b455 70