Norimasa Okamoto / BaseUsbHost

USB host library, support isochronous,bulk,interrupt and control.

Dependents:   BaseUsbHost_example BaseJpegDecode_example SimpleJpegDecode_example

Import programBaseUsbHost_example

BaseUsbHost example program

Last commit 25 Jan 2013 by Norimasa Okamoto

BaseUsbHostUvc.cpp@1:3b7bc4f87a61, 2012-12-05 (annotated)

Committer:
va009039
Date:
Wed Dec 05 13:23:06 2012 +0000
Revision:
1:3b7bc4f87a61
Child:
2:fe1e62051d88
add uvc class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 1:3b7bc4f87a61 1 // BaseUsbHostUvc.cpp 2012/12/5
va009039 1:3b7bc4f87a61 2 #include "mbed.h"
va009039 1:3b7bc4f87a61 3 #include "rtos.h"
va009039 1:3b7bc4f87a61 4 #include "BaseUsbHost.h"
va009039 1:3b7bc4f87a61 5 #define DEBUG
va009039 1:3b7bc4f87a61 6 #include "BaseUsbHostDebug.h"
va009039 1:3b7bc4f87a61 7 #define TEST
va009039 1:3b7bc4f87a61 8 #include "BaseUsbHostTest.h"
va009039 1:3b7bc4f87a61 9
va009039 1:3b7bc4f87a61 10 void BaseUvc::poll()
va009039 1:3b7bc4f87a61 11 {
va009039 1:3b7bc4f87a61 12 HCITD* itd = m_isoEp->isochronousReveive();
va009039 1:3b7bc4f87a61 13 if (itd) {
va009039 1:3b7bc4f87a61 14 uint8_t cc = itd->Control>>28;
va009039 1:3b7bc4f87a61 15 report_cc_count[cc]++;
va009039 1:3b7bc4f87a61 16 if (cc == 0) { // ConditionCode
va009039 1:3b7bc4f87a61 17 //DBG_ITD(itd);
va009039 1:3b7bc4f87a61 18 uint16_t frame = itd->Control & 0xffff;
va009039 1:3b7bc4f87a61 19 uint8_t* buf = const_cast<uint8_t*>(itd->buf);
va009039 1:3b7bc4f87a61 20 int mps = m_isoEp->m_PacketSize;
va009039 1:3b7bc4f87a61 21 for(int i = 0; i < m_isoEp->m_FrameCount; i++) {
va009039 1:3b7bc4f87a61 22 uint16_t pswn = itd->OffsetPSW[i];
va009039 1:3b7bc4f87a61 23 cc = pswn>>12;
va009039 1:3b7bc4f87a61 24 if (cc == 0 || cc == 9) {
va009039 1:3b7bc4f87a61 25 int len = pswn & 0x7ff;
va009039 1:3b7bc4f87a61 26 onResult(frame, buf, len);
va009039 1:3b7bc4f87a61 27 }
va009039 1:3b7bc4f87a61 28 report_ps_cc_count[cc]++;
va009039 1:3b7bc4f87a61 29 buf += mps;
va009039 1:3b7bc4f87a61 30 frame++;
va009039 1:3b7bc4f87a61 31 }
va009039 1:3b7bc4f87a61 32 }
va009039 1:3b7bc4f87a61 33 m_isoEp->delete_HCTD(reinterpret_cast<HCTD*>(itd));
va009039 1:3b7bc4f87a61 34 }
va009039 1:3b7bc4f87a61 35 }
va009039 1:3b7bc4f87a61 36
va009039 1:3b7bc4f87a61 37 int BaseUvc::Control(int req, int cs, int index, uint8_t* buf, int size)
va009039 1:3b7bc4f87a61 38 {
va009039 1:3b7bc4f87a61 39 TEST_ASSERT(m_ctlEp);
va009039 1:3b7bc4f87a61 40 int rc;
va009039 1:3b7bc4f87a61 41 if (req == SET_CUR) {
va009039 1:3b7bc4f87a61 42 rc = m_ctlEp->controlSend(
va009039 1:3b7bc4f87a61 43 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE,
va009039 1:3b7bc4f87a61 44 req, cs<<8, index, buf, size);
va009039 1:3b7bc4f87a61 45 return rc;
va009039 1:3b7bc4f87a61 46 }
va009039 1:3b7bc4f87a61 47 rc = m_ctlEp->controlReceive(
va009039 1:3b7bc4f87a61 48 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE,
va009039 1:3b7bc4f87a61 49 req, cs<<8, index, buf, size);
va009039 1:3b7bc4f87a61 50 return rc;
va009039 1:3b7bc4f87a61 51 }
va009039 1:3b7bc4f87a61 52
va009039 1:3b7bc4f87a61 53 void BaseUvc::onResult(uint16_t frame, uint8_t* buf, int len)
va009039 1:3b7bc4f87a61 54 {
va009039 1:3b7bc4f87a61 55 if(m_pCbItem && m_pCbMeth)
va009039 1:3b7bc4f87a61 56 (m_pCbItem->*m_pCbMeth)(frame, buf, len);
va009039 1:3b7bc4f87a61 57 else if(m_pCb)
va009039 1:3b7bc4f87a61 58 m_pCb(frame, buf, len);
va009039 1:3b7bc4f87a61 59 }
va009039 1:3b7bc4f87a61 60
va009039 1:3b7bc4f87a61 61 void BaseUvc::setOnResult( void (*pMethod)(uint16_t, uint8_t*, int) )
va009039 1:3b7bc4f87a61 62 {
va009039 1:3b7bc4f87a61 63 m_pCb = pMethod;
va009039 1:3b7bc4f87a61 64 m_pCbItem = NULL;
va009039 1:3b7bc4f87a61 65 m_pCbMeth = NULL;
va009039 1:3b7bc4f87a61 66 }
va009039 1:3b7bc4f87a61 67
va009039 1:3b7bc4f87a61 68 void BaseUvc::clearOnResult()
va009039 1:3b7bc4f87a61 69 {
va009039 1:3b7bc4f87a61 70 m_pCb = NULL;
va009039 1:3b7bc4f87a61 71 m_pCbItem = NULL;
va009039 1:3b7bc4f87a61 72 m_pCbMeth = NULL;
va009039 1:3b7bc4f87a61 73 }
va009039 1:3b7bc4f87a61 74