-/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- 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
- 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.
-*/
-
-#define __INCLUDE_FROM_USB_DRIVER
-#include "../HighLevel/USBMode.h"
-
-#if defined(USB_CAN_BE_HOST)
-
-#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)
-{
-#if defined(ORDERED_EP_CONFIG)
- 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();
-#else
- for (uint8_t PNum = Number; PNum < PIPE_TOTAL_PIPES; PNum++)
- {
- uint8_t UPCFG0XTemp;
- uint8_t UPCFG1XTemp;
- uint8_t UPCFG2XTemp;
- uint8_t UPCONXTemp;
- uint8_t UPINRQXTemp;
- uint8_t UPIENXTemp;
-
- Pipe_SelectPipe(PNum);
-
- if (PNum == Number)
- {
- UPCFG0XTemp = ((Type << EPTYPE0) | Token | ((EndpointNumber & PIPE_EPNUM_MASK) << PEPNUM0));
- UPCFG1XTemp = ((1 << ALLOC) | Banks | Pipe_BytesToEPSizeMask(Size));
- UPCFG2XTemp = 0;
- UPCONXTemp = ((1 << PEN) | (1 << INMODE));
- UPINRQXTemp = 0;
- UPIENXTemp = 0;
- }
- else
- {
- UPCFG0XTemp = UPCFG0X;
- UPCFG1XTemp = UPCFG1X;
- UPCFG2XTemp = UPCFG2X;
- UPCONXTemp = UPCONX;
- UPINRQXTemp = UPINRQX;
- UPIENXTemp = UPIENX;
- }
-
- if (!(UPCFG1XTemp & (1 << ALLOC)))
- continue;
-
- Pipe_DisablePipe();
- UPCFG1X &= (1 << ALLOC);
-
- Pipe_EnablePipe();
- UPCFG0X = UPCFG0XTemp;
- UPCFG1X = UPCFG1XTemp;
- UPCFG2X = UPCFG2XTemp;
- UPCONX = UPCONXTemp;
- UPINRQX = UPINRQXTemp;
- UPIENX = UPIENXTemp;
-
- if (!(Pipe_IsConfigured()))
- return false;
- }
-
- Pipe_SelectPipe(Number);
- return true;
-#endif
-}
-
-void Pipe_ClearPipes(void)
-{
- UPINT = 0;
-
- for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
- {
- Pipe_SelectPipe(PNum);
- UPIENX = 0;
- UPINTX = 0;
- UPCFG1X = 0;
- Pipe_DisablePipe();
- }
-}
-
-bool Pipe_IsEndpointBound(const uint8_t EndpointAddress)
-{
- uint8_t PrevPipeNumber = Pipe_GetCurrentPipe();
-
- 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;
- #else
- uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
- #endif
-
- uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
-
- 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;
-
- uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
-
- if (CurrentFrameNumber != PreviousFrameNumber)
- {
- PreviousFrameNumber = CurrentFrameNumber;
-
- if (!(TimeoutMSRem--))
- return PIPE_READYWAIT_Timeout;
- }
- }
-}
-
-#endif
-
projects / pub / lufa.git / blobdiff