#if defined(USB_CAN_BE_HOST)
-#define __INCLUDE_FROM_PIPE_C
#include "Pipe.h"
uint8_t USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;
#else
uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#endif
+
+ uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
for (;;)
{
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_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
+ uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
- while (Length)
- {
- if (!(Pipe_IsReadWriteAllowed()))
+ if (CurrentFrameNumber != PreviousFrameNumber)
{
- Pipe_ClearIN();
-
- #if !defined(NO_STREAM_CALLBACKS)
- if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
- return PIPE_RWSTREAM_CallbackAborted;
- #endif
+ PreviousFrameNumber = CurrentFrameNumber;
- if ((ErrorCode = Pipe_WaitUntilReady()))
- return ErrorCode;
- }
- else
- {
- Pipe_Discard_Byte();
- Length--;
+ if (!(TimeoutMSRem--))
+ return PIPE_READYWAIT_Timeout;
}
}
-
- 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