diff options
Diffstat (limited to 'LUFA/Drivers/USB/Core/UC3/Pipe_UC3.c')
| -rw-r--r-- | LUFA/Drivers/USB/Core/UC3/Pipe_UC3.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.c b/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.c new file mode 100644 index 0000000000..73cf360783 --- /dev/null +++ b/LUFA/Drivers/USB/Core/UC3/Pipe_UC3.c @@ -0,0 +1,209 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 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 disclaims 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 "../../../../Common/Common.h" +#if (ARCH == ARCH_UC3) + +#define __INCLUDE_FROM_USB_DRIVER +#include "../USBMode.h" + +#if defined(USB_CAN_BE_HOST) + +#include "../Pipe.h" + +uint8_t USB_Host_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE; + +volatile uint32_t USB_Pipe_SelectedPipe = PIPE_CONTROLPIPE; +volatile uint8_t* USB_Pipe_FIFOPos[PIPE_TOTAL_PIPES]; + +bool Pipe_ConfigurePipeTable(const USB_Pipe_Table_t* const Table, + const uint8_t Entries) +{ + for (uint8_t i = 0; i < Entries; i++) + { + if (!(Table[i].Address)) + continue; + + if (!(Pipe_ConfigurePipe(Table[i].Address, Table[i].Type, Table[i].EndpointAddress, Table[i].Size, Table[i].Banks))) + { + return false; + } + } + + return true; +} + +bool Pipe_ConfigurePipe(const uint8_t Address, + const uint8_t Type, + const uint8_t EndpointAddress, + const uint16_t Size, + const uint8_t Banks) +{ + uint8_t Number = (Address & PIPE_EPNUM_MASK); + uint8_t Token = (Address & PIPE_DIR_IN) ? PIPE_TOKEN_IN : PIPE_TOKEN_OUT; + + if (Number >= PIPE_TOTAL_PIPES) + return false; + + if (Type == EP_TYPE_CONTROL) + Token = PIPE_TOKEN_SETUP; + + USB_Pipe_FIFOPos[Number] = &AVR32_USBB_SLAVE[Number * PIPE_HSB_ADDRESS_SPACE_SIZE]; + +#if defined(ORDERED_EP_CONFIG) + Pipe_SelectPipe(Number); + Pipe_EnablePipe(); + + (&AVR32_USBB.upcfg0)[Number] = 0; + (&AVR32_USBB.upcfg0)[Number] = (AVR32_USBB_ALLOC_MASK | + ((uint32_t)Type << AVR32_USBB_PTYPE_OFFSET) | + ((uint32_t)Token << AVR32_USBB_PTOKEN_OFFSET) | + ((Banks > 1) ? AVR32_USBB_PBK_MASK : 0) | + Pipe_BytesToEPSizeMask(Size) | + ((uint32_t)Number << AVR32_USBB_PEPNUM_OFFSET)); + + Pipe_SetInfiniteINRequests(); + + return Pipe_IsConfigured(); +#else + for (uint8_t PNum = Number; PNum < PIPE_TOTAL_PIPES; PNum++) + { + uint32_t UPCFG0Temp; + + Pipe_SelectPipe(PNum); + + if (PNum == Number) + { + UPCFG0Temp = (AVR32_USBB_ALLOC_MASK | + ((uint32_t)Type << AVR32_USBB_PTYPE_OFFSET) | + ((uint32_t)Token << AVR32_USBB_PTOKEN_OFFSET) | + ((Banks > 1) ? AVR32_USBB_PBK_MASK : 0) | + Pipe_BytesToEPSizeMask(Size) | + ((EndpointAddress & PIPE_EPNUM_MASK) << AVR32_USBB_PEPNUM_OFFSET)); + } + else + { + UPCFG0Temp = (&AVR32_USBB.upcfg0)[PNum]; + } + + if (!(UPCFG0Temp & AVR32_USBB_ALLOC_MASK)) + continue; + + Pipe_DisablePipe(); + (&AVR32_USBB.upcfg0)[PNum] &= ~AVR32_USBB_ALLOC_MASK; + + Pipe_EnablePipe(); + (&AVR32_USBB.upcfg0)[PNum] = UPCFG0Temp; + + Pipe_SetInfiniteINRequests(); + + if (!(Pipe_IsConfigured())) + return false; + } + + Pipe_SelectPipe(Number); + return true; +#endif +} + +void Pipe_ClearPipes(void) +{ + for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++) + { + Pipe_SelectPipe(PNum); + (&AVR32_USBB.upcfg0)[PNum] = 0; + (&AVR32_USBB.upcon0clr)[PNum] = -1; + USB_Pipe_FIFOPos[PNum] = &AVR32_USBB_SLAVE[PNum * 0x10000]; + 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; + + if (Pipe_GetBoundEndpointAddress() == 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 + + 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 + +#endif |