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142 lines
3.4 KiB
142 lines
3.4 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all 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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#define __INCLUDE_FROM_USB_DRIVER
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#include "../HighLevel/USBMode.h"
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#if defined(USB_CAN_BE_DEVICE)
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#include "Endpoint.h"
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#if !defined(FIXED_CONTROL_ENDPOINT_SIZE)
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uint8_t USB_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE;
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#endif
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bool Endpoint_ConfigureEndpoint_Prv(const uint8_t Number,
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const uint8_t UECFG0XData,
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const uint8_t UECFG1XData)
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{
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Endpoint_SelectEndpoint(Number);
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Endpoint_EnableEndpoint();
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UECFG1X = 0;
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UECFG0X = UECFG0XData;
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UECFG1X = UECFG1XData;
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return Endpoint_IsConfigured();
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}
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void Endpoint_ClearEndpoints(void)
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{
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UEINT = 0;
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for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)
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{
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Endpoint_SelectEndpoint(EPNum);
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UEIENX = 0;
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UEINTX = 0;
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UECFG1X = 0;
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Endpoint_DisableEndpoint();
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}
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}
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void Endpoint_ClearStatusStage(void)
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{
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if (USB_ControlRequest.bmRequestType & REQDIR_DEVICETOHOST)
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{
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while (!(Endpoint_IsOUTReceived()))
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{
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if (USB_DeviceState == DEVICE_STATE_Unattached)
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return;
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}
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Endpoint_ClearOUT();
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}
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else
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{
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while (!(Endpoint_IsINReady()))
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{
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if (USB_DeviceState == DEVICE_STATE_Unattached)
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return;
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}
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Endpoint_ClearIN();
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}
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}
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#if !defined(CONTROL_ONLY_DEVICE)
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uint8_t Endpoint_WaitUntilReady(void)
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{
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#if (USB_STREAM_TIMEOUT_MS < 0xFF)
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uint8_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
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#else
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uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
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#endif
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uint16_t PreviousFrameNumber = USB_Device_GetFrameNumber();
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for (;;)
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{
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if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN)
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{
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if (Endpoint_IsINReady())
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return ENDPOINT_READYWAIT_NoError;
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}
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else
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{
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if (Endpoint_IsOUTReceived())
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return ENDPOINT_READYWAIT_NoError;
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}
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uint8_t USB_DeviceState_LCL = USB_DeviceState;
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if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)
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return ENDPOINT_READYWAIT_DeviceDisconnected;
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else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)
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return ENDPOINT_READYWAIT_BusSuspended;
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else if (Endpoint_IsStalled())
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return ENDPOINT_READYWAIT_EndpointStalled;
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uint16_t CurrentFrameNumber = USB_Device_GetFrameNumber();
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if (CurrentFrameNumber != PreviousFrameNumber)
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{
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PreviousFrameNumber = CurrentFrameNumber;
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if (!(TimeoutMSRem--))
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return ENDPOINT_READYWAIT_Timeout;
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}
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}
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}
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#endif
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#endif
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