/*
LUFA Library
Copyright (C) Dean Camera, 2010.
-
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
/*
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
+ without fee, 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
+ 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
#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)
+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));
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();
+ UPIENX = 0;
+ UPINTX = 0;
+ UPCFG1X = 0;
Pipe_DisablePipe();
}
}
for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
{
Pipe_SelectPipe(PNum);
-
+
if (!(Pipe_IsConfigured()))
continue;
-
+
uint8_t PipeToken = Pipe_GetPipeToken();
bool PipeTokenCorrect = true;
if (PipeToken != PIPE_TOKEN_SETUP)
PipeTokenCorrect = (PipeToken == ((EndpointAddress & PIPE_EPDIR_MASK) ? PIPE_TOKEN_IN : PIPE_TOKEN_OUT));
-
+
if (PipeTokenCorrect && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK)))
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;
+ uint8_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#else
uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#endif
-
+
+ uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
+
for (;;)
{
if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
else
{
if (Pipe_IsOUTReady())
- return PIPE_READYWAIT_NoError;
+ 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))
+
+ uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
+
+ if (CurrentFrameNumber != PreviousFrameNumber)
{
- USB_INT_Clear(USB_INT_HSOFI);
+ PreviousFrameNumber = CurrentFrameNumber;
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_SetPipeToken(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;
-}
-
-/* The following abuses the C preprocessor in order to copy-past common code with slight alterations,
- * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */
-
-#define TEMPLATE_FUNC_NAME Pipe_Write_Stream_LE
-#define TEMPLATE_BUFFER_TYPE const void*
-#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(*((uint8_t*)BufferPtr++))
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Write_PStream_LE
-#define TEMPLATE_BUFFER_TYPE const void*
-#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((uint8_t*)BufferPtr++))
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Write_EStream_LE
-#define TEMPLATE_BUFFER_TYPE const void*
-#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((uint8_t*)BufferPtr++))
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Write_Stream_BE
-#define TEMPLATE_BUFFER_TYPE const void*
-#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(*((uint8_t*)BufferPtr--))
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Write_PStream_BE
-#define TEMPLATE_BUFFER_TYPE const void*
-#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((uint8_t*)BufferPtr--))
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Write_EStream_BE
-#define TEMPLATE_BUFFER_TYPE const void*
-#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((uint8_t*)BufferPtr--))
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_LE
-#define TEMPLATE_BUFFER_TYPE void*
-#define TEMPLATE_TOKEN PIPE_TOKEN_IN
-#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
-#define TEMPLATE_BUFFER_OFFSET(Length) 0
-#define TEMPLATE_TRANSFER_BYTE(BufferPtr) *((uint8_t*)BufferPtr++) = Pipe_Read_Byte()
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Read_EStream_LE
-#define TEMPLATE_BUFFER_TYPE void*
-#define TEMPLATE_TOKEN PIPE_TOKEN_IN
-#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
-#define TEMPLATE_BUFFER_OFFSET(Length) 0
-#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte((uint8_t*)BufferPtr++, Pipe_Read_Byte())
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_BE
-#define TEMPLATE_BUFFER_TYPE void*
-#define TEMPLATE_TOKEN PIPE_TOKEN_IN
-#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
-#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
-#define TEMPLATE_TRANSFER_BYTE(BufferPtr) *((uint8_t*)BufferPtr--) = Pipe_Read_Byte()
-#include "Template/Template_Pipe_RW.c"
-
-#define TEMPLATE_FUNC_NAME Pipe_Read_EStream_BE
-#define TEMPLATE_BUFFER_TYPE void*
-#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_update_byte((uint8_t*)BufferPtr--, Pipe_Read_Byte())
-#include "Template/Template_Pipe_RW.c"
-
-#endif
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