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90 lines
2.4 KiB
90 lines
2.4 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#include "USBMode.h"
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#define INCLUDE_FROM_USBTASK_C
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#include "USBTask.h"
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volatile bool USB_IsInitialized;
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USB_Request_Header_t USB_ControlRequest;
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#if defined(USB_CAN_BE_HOST) && !defined(HOST_STATE_AS_GPIOR)
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volatile uint8_t USB_HostState;
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#endif
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#if defined(USB_CAN_BE_DEVICE) && !defined(DEVICE_STATE_AS_GPIOR)
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volatile uint8_t USB_DeviceState;
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#endif
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void USB_USBTask(void)
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{
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#if defined(USB_HOST_ONLY)
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USB_HostTask();
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#elif defined(USB_DEVICE_ONLY)
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USB_DeviceTask();
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#else
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if (USB_CurrentMode == USB_MODE_DEVICE)
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USB_DeviceTask();
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else if (USB_CurrentMode == USB_MODE_HOST)
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USB_HostTask();
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#endif
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}
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#if defined(USB_CAN_BE_DEVICE)
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static void USB_DeviceTask(void)
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{
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if (USB_DeviceState != DEVICE_STATE_Unattached)
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{
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uint8_t PrevEndpoint = Endpoint_GetCurrentEndpoint();
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Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
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if (Endpoint_IsSETUPReceived())
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USB_Device_ProcessControlRequest();
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Endpoint_SelectEndpoint(PrevEndpoint);
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}
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}
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#endif
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#if defined(USB_CAN_BE_HOST)
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static void USB_HostTask(void)
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{
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uint8_t PrevPipe = Pipe_GetCurrentPipe();
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Pipe_SelectPipe(PIPE_CONTROLPIPE);
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USB_Host_ProcessNextHostState();
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Pipe_SelectPipe(PrevPipe);
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}
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#endif
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