void
USBSerialStream::BulkIn(U8 bEP, U8 bEPStatus)
{
static bool bLastWasFull = false;
instance()->TransferData(false);
return;
USBHwEPWrite(bEP, (U8*)"a", 1);
return;
if (instance()->m_infifo.size() > 0) {
int datatoWrite = instance()->m_infifo.size();
if (datatoWrite >= MAX_PACKET_SIZE) {
bLastWasFull = true;
datatoWrite = MAX_PACKET_SIZE;
} else {
bLastWasFull = false;
}
instance()->m_infifo.pop(dataBuf, datatoWrite);
USBHwEPWrite(bEP, dataBuf, datatoWrite);
} else if (bLastWasFull) {
// I think we need to transmit a zero length package in this case.
USBHwEPWrite(bEP, dataBuf, 0);
}
}
/**
Handles the BOT bulk IN endpoint
@param [in] bEP Endpoint number
@param [in] bEPStatus Endpoint status (indicates NAK, STALL, etc)
*/
void MSCBotBulkIn(U8 bEP, U8 bEPStatus)
{
// ignore events on stalled EP
if (bEPStatus & EP_STATUS_STALLED) {
return;
}
switch (eState) {
case eCBW:
case eDataOut:
// ignore possibly old ACKs
break;
case eDataIn:
HandleDataIn();
break;
case eCSW:
// wait for an IN token, then send the CSW
USBHwEPWrite(MSC_BULK_IN_EP, (U8 *)&CSW, 13);
eState = eCBW;
break;
case eStalled:
// keep stalling
USBHwEPStall(MSC_BULK_IN_EP, TRUE);
break;
default:
DBG("Invalid state %d\n", eState);
ASSERT(FALSE);
break;
}
}
/*************************************************************************
HandleDataIn
============
Handles data from device-to-host
**************************************************************************/
static void HandleDataIn(void)
{
int iChunk;
// process data for host in SCSI layer
pbData = SCSIHandleData(CBW.CBWCB, CBW.bCBWCBLength, pbData, dwOffset);
if (pbData == NULL) {
BOTStall();
SendCSW(STATUS_FAILED);
return;
}
// send data to host?
if (dwOffset < dwTransferSize) {
iChunk = MIN(64, dwTransferSize - dwOffset);
USBHwEPWrite(MSC_BULK_IN_EP, pbData, iChunk);
dwOffset += iChunk;
}
// are we done now?
if (dwOffset == dwTransferSize) {
if (dwOffset != CBW.dwCBWDataTransferLength) {
// stall pipe
DBG("stalling DIN");
BOTStall();
}
// done
SendCSW(STATUS_PASSED);
}
}
void
USBSerialStream::TransferData(bool bInit)
{
// We'll end up here both if we come from the frame handler, and the bulkin handler
if (bInit) {
m_bTransferInProgress = true;
m_bDontStartNew = true;
}
if (!m_bTransferInProgress) {
return;
}
int dataToSend = m_infifo.size();
if (dataToSend >= MAX_PACKET_SIZE) {
dataToSend = MAX_PACKET_SIZE;
} else {
m_bTransferInProgress = false;
m_bDontStartNew = false;
}
instance()->m_infifo.pop(dataBuf, dataToSend);
USBHwEPWrite(BULK_IN_EP, dataBuf, dataToSend);
}
/**
Local function to handle outgoing bulk data
@param [in] bEP
@param [in] bEPStatus
*/
static void BulkIn(unsigned char bEP, unsigned char bEPStatus)
{
int i, iLen;
long lHigherPriorityTaskWoken = pdFALSE;
( void ) bEPStatus;
if (uxQueueMessagesWaitingFromISR( xCharsForTx ) == 0) {
// no more data, disable further NAK interrupts until next USB frame
USBHwNakIntEnable(0);
return;
}
// get bytes from transmit FIFO into intermediate buffer
for (i = 0; i < MAX_PACKET_SIZE; i++) {
if( xQueueReceiveFromISR( xCharsForTx, ( &abBulkBuf[i] ), &lHigherPriorityTaskWoken ) != pdPASS )
{
break;
}
}
iLen = i;
// send over USB
if (iLen > 0) {
USBHwEPWrite(bEP, abBulkBuf, iLen);
}
portEND_SWITCHING_ISR( lHigherPriorityTaskWoken );
}
/**
Local function to handle outgoing bulk data
@param [in] bEP
@param [in] bEPStatus
*/
static void BulkIn(U8 bEP, U8 bEPStatus)
{
int i, iLen;
// Verifica se não há data para enviar ao PC
if (_fifo_avail(&txfifo) == 0)
{
// no more data, disable further NAK interrupts until next USB frame
USBHwNakIntEnable(0); // não é gerada nenhuma interrupção sempre que o host tenta ler/escrever nos EPs mas este estão cheios/vazios.
return;
}
// get bytes from transmit FIFO into intermediate buffer
for (i = 0; i < MAX_PACKET_SIZE; i++)
{
if (!_fifo_get(&txfifo, &abBulkBuf[i]))
{
break; // sai do ciclo quando o fifo fica vazio, terminando a transferência de informação do &txfifo para &abBulkBuf[].
}
}
iLen = i;
// send over USB
if (iLen > 0)
{
USBHwEPWrite(bEP, abBulkBuf, iLen);
}
}
/**
Local function to handle outgoing bulk data
@param [in] bEP
@param [in] bEPStatus
*/
static void BulkIn(U8 bEP, U8 bEPStatus)
{
int i, iLen;
if (_fifo_avail(&txfifo) == 0)
{
// no more data, disable further NAK interrupts until next USB frame
USBHwNakIntEnable(0);
return;
}
// get bytes from transmit FIFO into intermediate buffer
for (i = 0; i < MAX_PACKET_SIZE; i++)
{
if (!_fifo_get(&txfifo, &abBulkBuf[i]))
{
break;
}
}
iLen = i;
// send over USB
if (iLen > 0)
{
USBHwEPWrite(bEP, abBulkBuf, iLen);
}
}
/**
Sends the next packet in chain of packets to the host
@param [in] bEP
@param [in] bEPStatus
*/
static void SendNextBulkIn(uint8_t bEP, bool fFirstPacket)
{
int iLen;
// this transfer is done
fBulkInBusy = FALSE;
// first packet?
if (fFirstPacket) {
fChainDone = FALSE;
}
// last packet?
if (fChainDone) {
return;
}
// get up to MAX_PACKET_SIZE bytes from transmit FIFO into intermediate buffer
// for (iLen = 0; iLen < MAX_PACKET_SIZE; iLen++) {
// if (!fifo_get(&txfifo, &abBulkBuf[iLen])) {
// break;
// }
// }
// send over USB
USBHwEPWrite(bEP, abBulkBuf, iLen);
fBulkInBusy = TRUE;
// was this a short packet?
if (iLen < MAX_PACKET_SIZE) {
fChainDone = TRUE;
}
}
void USBFrameHandler(uint16_t wFrame)
{
// send over USB
if( isConnectedFlag ) {
if( delay < 4000 ) {
//FIXME need to delay a few seconds before doing isoc writes, impliment more elegant solution, status or event driven....
delay++;
} else {
//Always write whatever is in our most recent isoc output data buffer, you may want to pust somthing interesting in there....
inputIsocDataBuffer[0]++;
USBHwEPWrite(ISOC_IN_EP, inputIsocDataBuffer, BYTES_PER_ISOC_FRAME);
int iLen = USBHwISOCEPRead(ISOC_OUT_EP, outputIsocDataBuffer, sizeof(outputIsocDataBuffer));
if (iLen > 0) {
//Insert your code to do somthing interesting here....
//DBG("z%d", b1);
//The host sample code will send a byte indicating if the BLUE LED should be on of off.
if( outputIsocDataBuffer[0] ) {
// BLUE_LED_ON
} else {
BLUE_LED_OFF;
}
}
}
} else {
RED_LED_ON;
}
}
void USBFrameHandler(U16 wFrame)
{
// send over USB
if( isConnectedFlag ) {
if( delay < 4000 ) {
delay++;
} else {
USBHwEPWrite(ISOC_IN_EP, inputIsocDataBuffer, BYTES_PER_ISOC_FRAME);
int iLen = USBHwISOCEPRead(ISOC_OUT_EP, outputIsocDataBuffer, sizeof(outputIsocDataBuffer));
if (iLen > 0) {
//FIXME parse data and control somthing
U8 b1 = outputIsocDataBuffer[0];
if( b1 ) {
IOSET0 |= (1<<10);
} else {
IOCLR0 |= (1<<10);
}
DBG("z%d", b1);
}
}
}
}
int dequeue_send(u32 clkn)
{
usb_pkt_rx *pkt = dequeue(&pkt);
if (pkt != NULL) {
last_usb_pkt = clkn;
USBHwEPWrite(BULK_IN_EP, (u8 *)pkt, sizeof(usb_pkt_rx));
return 1;
} else {
if (clkn - last_usb_pkt > USB_KEEP_ALIVE) {
u8 pkt_type = KEEP_ALIVE;
last_usb_pkt = clkn;
USBHwEPWrite(BULK_IN_EP, &pkt_type, 1);
}
return 0;
}
}
/*
Local function to handle outgoing bulk data
@param [in] bEP
@param [in] bEPStatus
*/
void BulkIn(uint8_t bEP, uint8_t bEPStatus)
{
if(usbSendBufferSize > 0)
{
USBHwEPWrite(bEP, usbSendBuffer, usbSendBufferSize);
deleteBulkInBuf();
}
}
/**
Sends next chunk of data (possibly 0 bytes) to host
*/
static void DataIn(void)
{
int iChunk;
iChunk = MIN(MAX_PACKET_SIZE0, iResidue);
USBHwEPWrite(0x80, pbData, iChunk);
pbData += iChunk;
iResidue -= iChunk;
}
static void HandleFrame(U16 wFrame)
{
static int iCount;
_iFrame++;
if ((_iFrame > 1000)) {
// send report (dummy data)
abReport[0] = (iCount >> 8) & 0xFF;
abReport[1] = (iCount) & 0xFF;
iCount++;
USBHwEPWrite(INTR_IN_EP, abReport, REPORT_SIZE);
_iFrame = 0;
}
/**
Sends next chunk of data (possibly 0 bytes) to host
*/
static void DataIn(void)
{
int iChunk;
if( MAX_PACKET_SIZE0 < iResidue ) {
iChunk = MAX_PACKET_SIZE0;
} else {
iChunk = iResidue;
}
USBHwEPWrite(0x80, pbData, iChunk);
pbData += iChunk;
iResidue -= iChunk;
}
/**
Sends the next packet in chain of packets to the host
@param [in] bEP
@param [in] bEPStatus
*/
static void SendNextBulkIn(U8 bEP, BOOL fFirstPacket)
{
int iLen;
// this transfer is done
/*
fBulkInBusy = FALSE;
// first packet?
if (fFirstPacket) {
fChainDone = FALSE;
}
*/
// last packet?
/*
if (fChainDone) {
return;
}
*/
// get up to MAX_PACKET_SIZE bytes from transmit FIFO into intermediate buffer
for (iLen = 0; iLen < MAX_PACKET_SIZE_BULK; iLen++) {
if (!fifo_get(&bulk_txfifo, &bulkBuf[iLen])) {
break;
}
}
// send over USB
DBG("Ba %d ", iLen);
USBHwEPWrite(bEP, bulkBuf, iLen);
DBG("Bb");
//fBulkInBusy = TRUE;
// was this a short packet?
/*if (iLen < MAX_PACKET_SIZE_BULK) {
fChainDone = TRUE;
}
*/
}
