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Dean Camera authored
Completed host CDC class driver enumeration code.
Dean Camera authoredCompleted host CDC class driver enumeration code.
Pipe.c 8.71 KiB
/*
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));
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();
}}
bool Pipe_IsEndpointBound(uint8_t EndpointAddress)
{
uint8_t PrevPipeNumber = Pipe_GetCurrentPipe();
for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
{
Pipe_SelectPipe(PNum);
if (Pipe_IsConfigured() && (Pipe_BoundEndpointNumber() == EndpointAddress))
return true;
}
Pipe_SelectPipe(PrevPipeNumber);
return false;
}
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_HostState == HOST_STATE_Unattached)
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_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;
#if defined(FAST_STREAM_TRANSFERS)
uint8_t BytesRemToAlignment = (Pipe_BytesInPipe() & 0x07);
if (Length >= 8)
{
Length -= BytesRemToAlignment;
switch (BytesRemToAlignment)
{
default:
do
{
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;
}
Length -= 8;
Pipe_Discard_Byte();
case 7: Pipe_Discard_Byte();
case 6: Pipe_Discard_Byte();
case 5: Pipe_Discard_Byte();
case 4: Pipe_Discard_Byte();
case 3: Pipe_Discard_Byte();
case 2: Pipe_Discard_Byte();
case 1: Pipe_Discard_Byte();
} while (Length >= 8);
}
}
#endif
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;
}
#define TEMPLATE_FUNC_NAME Pipe_Write_Stream_LE
#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_Byte(*(BufferPtr++))
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Write_PStream_LE
#define TEMPLATE_TOKEN PIPE_TOKEN_OUT#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_Byte(pgm_read_byte(BufferPtr++))
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Write_EStream_LE
#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_Byte(eeprom_read_byte(BufferPtr++))
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Write_Stream_BE
#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) Length - 1
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_Byte(*(BufferPtr--))
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Write_PStream_BE
#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) Length - 1
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_Byte(pgm_read_byte(BufferPtr--))
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Write_EStream_BE
#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
#define TEMPLATE_BUFFER_OFFSET(Length) Length - 1
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_Byte(eeprom_read_byte(BufferPtr--))
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_LE
#define TEMPLATE_TOKEN PIPE_TOKEN_IN
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) *(BufferPtr++) = Pipe_Read_Byte()
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Read_EStream_LE
#define TEMPLATE_TOKEN PIPE_TOKEN_IN
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
#define TEMPLATE_BUFFER_OFFSET(Length) 0
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte(BufferPtr++, Pipe_Read_Byte())
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_BE
#define TEMPLATE_TOKEN PIPE_TOKEN_IN
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
#define TEMPLATE_BUFFER_OFFSET(Length) Length - 1
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) *(BufferPtr--) = Pipe_Read_Byte()
#include "Template/Template_Pipe_RW.c"
#define TEMPLATE_FUNC_NAME Pipe_Read_EStream_BE
#define TEMPLATE_TOKEN PIPE_TOKEN_IN
#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
#define TEMPLATE_BUFFER_OFFSET(Length) Length - 1
#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_write_byte(BufferPtr--, Pipe_Read_Byte())
#include "Template/Template_Pipe_RW.c"
#endif