diff options
Diffstat (limited to 'lib/lufa/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c')
| -rw-r--r-- | lib/lufa/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/lib/lufa/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c b/lib/lufa/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c new file mode 100644 index 000000000..470f57ea2 --- /dev/null +++ b/lib/lufa/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.c @@ -0,0 +1,268 @@ +/* + 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_XMEGA) + +#define __INCLUDE_FROM_USB_DRIVER +#include "../USBMode.h" + +#if defined(USB_CAN_BE_DEVICE) + +#include "../Endpoint.h" + +#if !defined(FIXED_CONTROL_ENDPOINT_SIZE) +uint8_t USB_Device_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE; +#endif + +Endpoint_FIFOPair_t USB_Endpoint_FIFOs[ENDPOINT_TOTAL_ENDPOINTS]; + +volatile uint8_t USB_Endpoint_SelectedEndpoint; +volatile USB_EP_t* USB_Endpoint_SelectedHandle; +volatile Endpoint_FIFO_t* USB_Endpoint_SelectedFIFO; + +bool Endpoint_IsINReady(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint | ENDPOINT_DIR_IN); + + return ((USB_Endpoint_SelectedHandle->STATUS & USB_EP_BUSNACK0_bm) ? true : false); +} + +bool Endpoint_IsOUTReceived(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + + if (USB_Endpoint_SelectedHandle->STATUS & USB_EP_TRNCOMPL0_bm) + { + USB_Endpoint_SelectedFIFO->Length = USB_Endpoint_SelectedHandle->CNT; + return true; + } + + return false; +} + +bool Endpoint_IsSETUPReceived(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + + if (USB_Endpoint_SelectedHandle->STATUS & USB_EP_SETUP_bm) + { + USB_Endpoint_SelectedFIFO->Length = USB_Endpoint_SelectedHandle->CNT; + return true; + } + + return false; +} + +void Endpoint_ClearSETUP(void) +{ + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint & ~ENDPOINT_DIR_IN); + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_SETUP_bm | USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedHandle->STATUS |= USB_EP_TOGGLE_bm; + USB_Endpoint_SelectedFIFO->Position = 0; + + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint | ENDPOINT_DIR_IN); + USB_Endpoint_SelectedHandle->STATUS |= USB_EP_TOGGLE_bm; + USB_Endpoint_SelectedFIFO->Position = 0; +} + +void Endpoint_ClearIN(void) +{ + USB_Endpoint_SelectedHandle->CNT = USB_Endpoint_SelectedFIFO->Position; + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedFIFO->Position = 0; +} + +void Endpoint_ClearOUT(void) +{ + USB_Endpoint_SelectedHandle->STATUS &= ~(USB_EP_TRNCOMPL0_bm | USB_EP_BUSNACK0_bm | USB_EP_OVF_bm); + USB_Endpoint_SelectedFIFO->Position = 0; +} + +void Endpoint_StallTransaction(void) +{ + USB_Endpoint_SelectedHandle->CTRL |= USB_EP_STALL_bm; + + if ((USB_Endpoint_SelectedHandle->CTRL & USB_EP_TYPE_gm) == USB_EP_TYPE_CONTROL_gc) + { + Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint ^ ENDPOINT_DIR_IN); + USB_Endpoint_SelectedHandle->CTRL |= USB_EP_STALL_bm; + } +} + +uint8_t Endpoint_Read_8(void) +{ + return USB_Endpoint_SelectedFIFO->Data[USB_Endpoint_SelectedFIFO->Position++]; +} + +void Endpoint_Write_8(const uint8_t Data) +{ + USB_Endpoint_SelectedFIFO->Data[USB_Endpoint_SelectedFIFO->Position++] = Data; +} + +void Endpoint_SelectEndpoint(const uint8_t Address) +{ + uint8_t EndpointNumber = (Address & ENDPOINT_EPNUM_MASK); + + USB_Endpoint_SelectedEndpoint = Address; + + Endpoint_FIFOPair_t* EndpointFIFOPair = &USB_Endpoint_FIFOs[EndpointNumber]; + USB_EndpointTable_t* EndpointTable = (USB_EndpointTable_t*)USB.EPPTR; + + if (Address & ENDPOINT_DIR_IN) + { + USB_Endpoint_SelectedFIFO = &EndpointFIFOPair->IN; + USB_Endpoint_SelectedHandle = &EndpointTable->Endpoints[EndpointNumber].IN; + } + else + { + USB_Endpoint_SelectedFIFO = &EndpointFIFOPair->OUT; + USB_Endpoint_SelectedHandle = &EndpointTable->Endpoints[EndpointNumber].OUT; + } +} + +bool Endpoint_ConfigureEndpointTable(const USB_Endpoint_Table_t* const Table, + const uint8_t Entries) +{ + for (uint8_t i = 0; i < Entries; i++) + { + if (!(Table[i].Address)) + continue; + + if (!(Endpoint_ConfigureEndpoint(Table[i].Address, Table[i].Type, Table[i].Size, Table[i].Banks))) + { + return false; + } + } + + return true; +} + +bool Endpoint_ConfigureEndpoint_PRV(const uint8_t Address, + const uint8_t Config, + const uint8_t Size) +{ + Endpoint_SelectEndpoint(Address); + + USB_Endpoint_SelectedHandle->CTRL = 0; + USB_Endpoint_SelectedHandle->STATUS = (Address & ENDPOINT_DIR_IN) ? USB_EP_BUSNACK0_bm : 0; + USB_Endpoint_SelectedHandle->CTRL = Config; + USB_Endpoint_SelectedHandle->CNT = 0; + USB_Endpoint_SelectedHandle->DATAPTR = (intptr_t)USB_Endpoint_SelectedFIFO->Data; + + USB_Endpoint_SelectedFIFO->Length = (Address & ENDPOINT_DIR_IN) ? Size : 0; + USB_Endpoint_SelectedFIFO->Position = 0; + + return true; +} + +void Endpoint_ClearEndpoints(void) +{ + for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++) + { + ((USB_EndpointTable_t*)USB.EPPTR)->Endpoints[EPNum].IN.CTRL = 0; + ((USB_EndpointTable_t*)USB.EPPTR)->Endpoints[EPNum].OUT.CTRL = 0; + } +} + +void Endpoint_ClearStatusStage(void) +{ + if (USB_ControlRequest.bmRequestType & REQDIR_DEVICETOHOST) + { + while (!(Endpoint_IsOUTReceived())) + { + if (USB_DeviceState == DEVICE_STATE_Unattached) + return; + } + + Endpoint_ClearOUT(); + } + else + { + while (!(Endpoint_IsINReady())) + { + if (USB_DeviceState == DEVICE_STATE_Unattached) + return; + } + + Endpoint_ClearIN(); + } +} + +#if !defined(CONTROL_ONLY_DEVICE) +uint8_t Endpoint_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_Device_GetFrameNumber(); + + for (;;) + { + if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN) + { + if (Endpoint_IsINReady()) + return ENDPOINT_READYWAIT_NoError; + } + else + { + if (Endpoint_IsOUTReceived()) + return ENDPOINT_READYWAIT_NoError; + } + + uint8_t USB_DeviceState_LCL = USB_DeviceState; + + if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) + return ENDPOINT_READYWAIT_DeviceDisconnected; + else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) + return ENDPOINT_READYWAIT_BusSuspended; + else if (Endpoint_IsStalled()) + return ENDPOINT_READYWAIT_EndpointStalled; + + uint16_t CurrentFrameNumber = USB_Device_GetFrameNumber(); + + if (CurrentFrameNumber != PreviousFrameNumber) + { + PreviousFrameNumber = CurrentFrameNumber; + + if (!(TimeoutMSRem--)) + return ENDPOINT_READYWAIT_Timeout; + } + } +} +#endif + +#endif + +#endif + |