File content as of revision 0:b7d6879637a8:

// BaseUsbHostIntEp.cpp 2012/12/4
#include "mbed.h"
#include "rtos.h"
#include "BaseUsbHost.h"
#define DEBUG
#include "BaseUsbHostDebug.h"
#define TEST
#include "BaseUsbHostTest.h"

InterruptEp::InterruptEp(int addr, uint8_t ep, uint16_t size, int lowSpeed)
    :BaseEp(addr, ep, size, lowSpeed)
{
    HCTD* td = new_HCTD();
    TEST_ASSERT(td);
    m_pED->TailTd = td;
    m_pED->HeadTd = td; 

    HCCA* pHcca = reinterpret_cast<HCCA*>(LPC_USB->HcHCCA);
    TEST_ASSERT(pHcca);
    int n = 0;
    m_pED->Next = pHcca->InterruptTable[n];
    pHcca->InterruptTable[n] = reinterpret_cast<uint32_t>(m_pED);
    LPC_USB->HcControl |= OR_CONTROL_PLE;
}
    
int InterruptEp::read(uint8_t* buf, int len, int millisec)
{
    if (m_td_queue_count == 0) {
        HCTD* data_td = m_pED->TailTd;
        TEST_ASSERT(data_td);
        data_td->Control |= TD_IN;
        data_td->CurrBufPtr = buf;
        data_td->BufEnd = const_cast<uint8_t*>(buf)+len-1;
        HCTD* blank_td = new_HCTD();
        TEST_ASSERT(blank_td);
        data_td->Next = reinterpret_cast<uint32_t>(blank_td);
        m_pED->TailTd = blank_td;
        m_td_queue_count++;
        DBG_ED(m_pED);
        LPC_USB->HcControl |= OR_CONTROL_PLE; // Enable Periodic
    }
        
    HCTD* td = get_queue_HCTD(millisec);
    if (td) {
        DBG_TD(td);
        int ret = len;
        if (td->CurrBufPtr) {
            ret = td->CurrBufPtr - buf;
        }
        delete_HCTD(td); 
        m_td_queue_count--;
        return ret;
    }
    return USB_TIMEOUT;
}