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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#include "../HighLevel/USBMode.h"
#if defined(USB_CAN_BE_HOST)
#define INCLUDE_FROM_PIPE_C
#include "Pipe.h"
uint8_t USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;
bool Pipe_ConfigurePipe(const uint8_t Number, const uint8_t Type, const uint8_t Token, const uint8_t EndpointNumber,
const uint16_t Size, const uint8_t Banks)
{
Pipe_SelectPipe(Number);
Pipe_EnablePipe();
UPCFG1X = 0;
UPCFG0X = ((Type << EPTYPE0) | Token | ((EndpointNumber & PIPE_EPNUM_MASK) << PEPNUM0));
UPCFG1X = ((1 << ALLOC) | Banks | Pipe_BytesToEPSizeMask(Size));
if (Token == PIPE_TOKEN_IN)
Pipe_SetInfiniteINRequests();
return Pipe_IsConfigured();
}
void Pipe_ClearPipes(void)
{
UPINT = 0;
for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
{
Pipe_ResetPipe(PNum);
Pipe_SelectPipe(PNum);
UPIENX = 0;
UPINTX = 0;
Pipe_ClearError();
Pipe_ClearErrorFlags();
Pipe_DeallocateMemory();
Pipe_DisablePipe();
}
}
uint8_t Pipe_WaitUntilReady(void)
{
#if (USB_STREAM_TIMEOUT_MS < 0xFF)
uint8_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#else
uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#endif
for (;;)
{
if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
{
if (Pipe_IsINReceived())
return PIPE_READYWAIT_NoError;
}
else
{
if (Pipe_IsOUTReady())
return PIPE_READYWAIT_NoError;
}
if (Pipe_IsStalled())
return PIPE_READYWAIT_PipeStalled;
else if (!(USB_IsConnected))
return PIPE_READYWAIT_DeviceDisconnected;
if (USB_INT_HasOccurred(USB_INT_HSOFI))
{
USB_INT_Clear(USB_INT_HSOFI);
if (!(TimeoutMSRem--))
return PIPE_READYWAIT_Timeout;
}
}
}
uint8_t Pipe_Write_Stream_LE(const void* Data, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, StreamCallbackPtr_t Callback
#endif
)
{
uint8_t* DataStream = (uint8_t*)Data;
uint8_t ErrorCode;
Pipe_SetToken(PIPE_TOKEN_OUT);
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
while (Length)
{
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearOUT();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return PIPE_RWSTREAM_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
else
{
Pipe_Write_Byte(*(DataStream++));
Length--;
}
}
return PIPE_RWSTREAM_NoError;
}
uint8_t Pipe_Write_Stream_BE(const void* Data, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, StreamCallbackPtr_t Callback
#endif
)
{
uint8_t* DataStream = (uint8_t*)(Data + Length - 1);
uint8_t ErrorCode;
Pipe_SetToken(PIPE_TOKEN_OUT);
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
while (Length)
{
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearOUT();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return PIPE_RWSTREAM_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
else
{
Pipe_Write_Byte(*(DataStream--));
Length--;
}
}
return PIPE_RWSTREAM_NoError;
}
uint8_t Pipe_Discard_Stream(uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, StreamCallbackPtr_t Callback
#endif
)
{
uint8_t ErrorCode;
Pipe_SetToken(PIPE_TOKEN_IN);
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
while (Length)
{
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearIN();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return PIPE_RWSTREAM_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
else
{
Pipe_Discard_Byte();
Length--;
}
}
return PIPE_RWSTREAM_NoError;
}
uint8_t Pipe_Read_Stream_LE(void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, StreamCallbackPtr_t Callback
#endif
)
{
uint8_t* DataStream = (uint8_t*)Buffer;
uint8_t ErrorCode;
Pipe_SetToken(PIPE_TOKEN_IN);
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
while (Length)
{
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearIN();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return PIPE_RWSTREAM_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
else
{
*(DataStream++) = Pipe_Read_Byte();
Length--;
}
}
return PIPE_RWSTREAM_NoError;
}
uint8_t Pipe_Read_Stream_BE(void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, StreamCallbackPtr_t Callback
#endif
)
{
uint8_t* DataStream = (uint8_t*)(Buffer + Length - 1);
uint8_t ErrorCode;
Pipe_SetToken(PIPE_TOKEN_IN);
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
while (Length)
{
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearIN();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return PIPE_RWSTREAM_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
else
{
*(DataStream--) = Pipe_Read_Byte();
Length--;
}
}
return PIPE_RWSTREAM_NoError;
}
#endif
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