X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..5517f96e86b9447780a3e27bb455697f9fc65eea:/LUFA/Drivers/USB/LowLevel/Pipe.c diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.c b/LUFA/Drivers/USB/LowLevel/Pipe.c index 013193064..74a8f51e4 100644 --- a/LUFA/Drivers/USB/LowLevel/Pipe.c +++ b/LUFA/Drivers/USB/LowLevel/Pipe.c @@ -1,7 +1,7 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ @@ -9,13 +9,13 @@ /* 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 @@ -33,19 +33,22 @@ #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)); @@ -60,13 +63,10 @@ void Pipe_ClearPipes(void) 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(); } } @@ -78,17 +78,20 @@ bool Pipe_IsEndpointBound(const uint8_t EndpointAddress) for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++) { Pipe_SelectPipe(PNum); - - uint8_t PipeToken = Pipe_GetPipeToken(); + + 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 (Pipe_IsConfigured() && PipeTokenCorrect && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK))) + + if (PipeTokenCorrect && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK))) return true; } - + Pipe_SelectPipe(PrevPipeNumber); return false; } @@ -96,11 +99,13 @@ bool Pipe_IsEndpointBound(const uint8_t EndpointAddress) 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) @@ -111,17 +116,19 @@ uint8_t Pipe_WaitUntilReady(void) 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; @@ -129,164 +136,5 @@ uint8_t Pipe_WaitUntilReady(void) } } -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_write_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_write_byte((uint8_t*)BufferPtr--, Pipe_Read_Byte()) -#include "Template/Template_Pipe_RW.c" - -#endif