nikos chalikias / Mbed 2 deprecated n-bed-USBHostC270_example

testing n-Bed with a Logitech C270 camera

Dependencies:   USBHost mbed

Fork of USBHostC270_example by Norimasa Okamoto

USBHostC270/BaseUvc.cpp@14:449f809d07eb, 2015-05-21 (annotated)

Committer:
chalikias
Date:
Thu May 21 11:59:47 2015 +0000
Revision:
14:449f809d07eb
Parent:
12:ea4badc78215 
camera resolution reduced to 160x120, else memory overflow issues...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 10:387c49b2fc7e 1 // BaseUvc.cpp
va009039 9:fecabade834a 2 #include "USBHostConf.h"
va009039 9:fecabade834a 3 #include "USBHost.h"
va009039 12:ea4badc78215 4 #include "USBIsochronous.h"
va009039 9:fecabade834a 5 #include "BaseUvc.h"
va009039 9:fecabade834a 6
va009039 9:fecabade834a 7 void BaseUvc::poll(int millisec)
va009039 9:fecabade834a 8 {
va009039 10:387c49b2fc7e 9 HCITD* itd = m_isoEp->isochronousReceive(millisec);
va009039 9:fecabade834a 10 if (itd) {
va009039 9:fecabade834a 11 uint8_t cc = itd->ConditionCode();
va009039 9:fecabade834a 12 report_cc_count[cc]++;
va009039 9:fecabade834a 13 if (cc == 0) {
va009039 9:fecabade834a 14 uint16_t frame = itd->StartingFrame();
va009039 9:fecabade834a 15 int fc = itd->FrameCount();
va009039 9:fecabade834a 16 uint8_t* buf = const_cast<uint8_t*>(itd->buf);
va009039 9:fecabade834a 17 int mps = m_isoEp->m_PacketSize;
va009039 9:fecabade834a 18 for(int i = 0; i < fc; i++) {
va009039 9:fecabade834a 19 uint16_t psw = itd->OffsetPSW[i];
va009039 9:fecabade834a 20 cc = psw>>12;
va009039 9:fecabade834a 21 if (cc == 0 || cc == 9) {
va009039 9:fecabade834a 22 int len = psw & 0x7ff;
va009039 9:fecabade834a 23 onResult(frame, buf, len);
va009039 9:fecabade834a 24 }
va009039 9:fecabade834a 25 report_ps_cc_count[cc]++;
va009039 9:fecabade834a 26 buf += mps;
va009039 9:fecabade834a 27 frame++;
va009039 9:fecabade834a 28 }
va009039 9:fecabade834a 29 }
va009039 9:fecabade834a 30 delete itd;
va009039 9:fecabade834a 31 }
va009039 9:fecabade834a 32 }
va009039 9:fecabade834a 33
va009039 10:387c49b2fc7e 34 USB_TYPE BaseUvc::Control(int req, int cs, int index, uint8_t* buf, int size)
va009039 10:387c49b2fc7e 35 {
va009039 10:387c49b2fc7e 36 if (req == SET_CUR) {
va009039 10:387c49b2fc7e 37 return host->controlWrite(dev,
va009039 10:387c49b2fc7e 38 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE,
va009039 10:387c49b2fc7e 39 req, cs<<8, index, buf, size);
va009039 10:387c49b2fc7e 40 }
va009039 10:387c49b2fc7e 41 return host->controlRead(dev,
va009039 10:387c49b2fc7e 42 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE,
va009039 10:387c49b2fc7e 43 req, cs<<8, index, buf, size);
va009039 10:387c49b2fc7e 44 }
va009039 10:387c49b2fc7e 45
va009039 10:387c49b2fc7e 46 USB_TYPE BaseUvc::setInterfaceAlternate(uint8_t intf, uint8_t alt)
va009039 10:387c49b2fc7e 47 {
va009039 10:387c49b2fc7e 48 return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE,
va009039 10:387c49b2fc7e 49 SET_INTERFACE, alt, intf, NULL, 0);
va009039 10:387c49b2fc7e 50 }
va009039 10:387c49b2fc7e 51
va009039 9:fecabade834a 52 void BaseUvc::onResult(uint16_t frame, uint8_t* buf, int len)
va009039 9:fecabade834a 53 {
va009039 9:fecabade834a 54 if(m_pCbItem && m_pCbMeth)
va009039 9:fecabade834a 55 (m_pCbItem->*m_pCbMeth)(frame, buf, len);
va009039 9:fecabade834a 56 else if(m_pCb)
va009039 9:fecabade834a 57 m_pCb(frame, buf, len);
va009039 9:fecabade834a 58 }
va009039 9:fecabade834a 59
va009039 9:fecabade834a 60 void BaseUvc::setOnResult( void (*pMethod)(uint16_t, uint8_t*, int) )
va009039 9:fecabade834a 61 {
va009039 9:fecabade834a 62 m_pCb = pMethod;
va009039 9:fecabade834a 63 m_pCbItem = NULL;
va009039 9:fecabade834a 64 m_pCbMeth = NULL;
va009039 9:fecabade834a 65 }
va009039 9:fecabade834a 66
va009039 9:fecabade834a 67 void BaseUvc::clearOnResult()
va009039 9:fecabade834a 68 {
va009039 9:fecabade834a 69 m_pCb = NULL;
va009039 9:fecabade834a 70 m_pCbItem = NULL;
va009039 9:fecabade834a 71 m_pCbMeth = NULL;
va009039 9:fecabade834a 72 }
va009039 9:fecabade834a 73
va009039 9:fecabade834a 74