250 lines
6.2 KiB
C
250 lines
6.2 KiB
C
/*
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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.fourwalledcubicle.com
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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 "USBInterrupt.h"
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void USB_INT_DisableAllInterrupts(void)
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{
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#if defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
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USBCON &= ~((1 << VBUSTE) | (1 << IDTE));
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#elif defined(USB_SERIES_4_AVR)
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USBCON &= ~(1 << VBUSTE);
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#endif
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#if defined(USB_CAN_BE_HOST)
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UHIEN = 0;
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OTGIEN = 0;
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#endif
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#if defined(USB_CAN_BE_DEVICE)
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UDIEN = 0;
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#endif
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}
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void USB_INT_ClearAllInterrupts(void)
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{
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#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
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USBINT = 0;
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#endif
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#if defined(USB_CAN_BE_HOST)
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UHINT = 0;
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OTGINT = 0;
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#endif
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#if defined(USB_CAN_BE_DEVICE)
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UDINT = 0;
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#endif
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}
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ISR(USB_GEN_vect, ISR_BLOCK)
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{
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#if defined(USB_CAN_BE_DEVICE)
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#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
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if (USB_INT_HasOccurred(USB_INT_VBUS) && USB_INT_IsEnabled(USB_INT_VBUS))
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{
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USB_INT_Clear(USB_INT_VBUS);
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if (USB_VBUS_GetStatus())
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{
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USB_DeviceState = DEVICE_STATE_Powered;
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EVENT_USB_Device_Connect();
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}
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else
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{
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USB_DeviceState = DEVICE_STATE_Unattached;
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EVENT_USB_Device_Disconnect();
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}
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}
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#endif
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if (USB_INT_HasOccurred(USB_INT_SUSPEND) && USB_INT_IsEnabled(USB_INT_SUSPEND))
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{
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USB_INT_Clear(USB_INT_SUSPEND);
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USB_INT_Disable(USB_INT_SUSPEND);
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USB_INT_Enable(USB_INT_WAKEUP);
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USB_CLK_Freeze();
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if (!(USB_Options & USB_OPT_MANUAL_PLL))
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USB_PLL_Off();
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#if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
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USB_DeviceState = DEVICE_STATE_Unattached;
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EVENT_USB_Device_Disconnect();
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#else
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USB_DeviceState = DEVICE_STATE_Suspended;
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EVENT_USB_Device_Suspend();
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#endif
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}
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if (USB_INT_HasOccurred(USB_INT_WAKEUP) && USB_INT_IsEnabled(USB_INT_WAKEUP))
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{
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if (!(USB_Options & USB_OPT_MANUAL_PLL))
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{
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USB_PLL_On();
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while (!(USB_PLL_IsReady()));
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}
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USB_CLK_Unfreeze();
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USB_INT_Clear(USB_INT_WAKEUP);
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USB_INT_Disable(USB_INT_WAKEUP);
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USB_INT_Enable(USB_INT_SUSPEND);
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#if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
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USB_DeviceState = (USB_ConfigurationNumber) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
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EVENT_USB_Device_Connect();
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#else
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USB_DeviceState = (USB_ConfigurationNumber) ? DEVICE_STATE_Configured : DEVICE_STATE_Addressed;
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EVENT_USB_Device_WakeUp();
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#endif
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}
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if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
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{
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USB_INT_Clear(USB_INT_EORSTI);
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USB_DeviceState = DEVICE_STATE_Default;
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USB_ConfigurationNumber = 0;
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USB_INT_Clear(USB_INT_SUSPEND);
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USB_INT_Disable(USB_INT_SUSPEND);
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USB_INT_Enable(USB_INT_WAKEUP);
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Endpoint_ClearEndpoints();
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Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
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ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
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ENDPOINT_BANK_SINGLE);
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#if defined(INTERRUPT_CONTROL_ENDPOINT)
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USB_INT_Enable(USB_INT_RXSTPI);
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#endif
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EVENT_USB_Device_Reset();
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}
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if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
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{
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USB_INT_Clear(USB_INT_SOFI);
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EVENT_USB_Device_StartOfFrame();
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}
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#endif
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#if defined(USB_CAN_BE_HOST)
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if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
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{
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USB_INT_Clear(USB_INT_DDISCI);
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USB_INT_Clear(USB_INT_DCONNI);
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USB_INT_Disable(USB_INT_DDISCI);
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EVENT_USB_Host_DeviceUnattached();
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USB_ResetInterface();
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}
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if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
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{
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USB_INT_Clear(USB_INT_VBERRI);
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USB_Host_VBUS_Manual_Off();
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USB_Host_VBUS_Auto_Off();
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EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
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EVENT_USB_Host_DeviceUnattached();
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USB_HostState = HOST_STATE_Unattached;
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}
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if (USB_INT_HasOccurred(USB_INT_SRPI) && USB_INT_IsEnabled(USB_INT_SRPI))
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{
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USB_INT_Clear(USB_INT_SRPI);
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USB_INT_Disable(USB_INT_SRPI);
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EVENT_USB_Host_DeviceAttached();
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USB_INT_Enable(USB_INT_DDISCI);
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USB_HostState = HOST_STATE_Powered;
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}
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if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
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{
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USB_INT_Clear(USB_INT_BCERRI);
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EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
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EVENT_USB_Host_DeviceUnattached();
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USB_ResetInterface();
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}
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#endif
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#if defined(USB_CAN_BE_BOTH)
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if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
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{
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USB_INT_Clear(USB_INT_IDTI);
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if (USB_DeviceState != DEVICE_STATE_Unattached)
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EVENT_USB_Device_Disconnect();
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if (USB_HostState != HOST_STATE_Unattached)
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EVENT_USB_Host_DeviceUnattached();
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USB_CurrentMode = USB_GetUSBModeFromUID();
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EVENT_USB_UIDChange();
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USB_ResetInterface();
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}
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#endif
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}
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#if defined(INTERRUPT_CONTROL_ENDPOINT) && defined(USB_CAN_BE_DEVICE)
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ISR(USB_COM_vect, ISR_BLOCK)
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{
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uint8_t PrevSelectedEndpoint = Endpoint_GetCurrentEndpoint();
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Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
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USB_INT_Disable(USB_INT_RXSTPI);
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NONATOMIC_BLOCK(NONATOMIC_FORCEOFF)
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{
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USB_Device_ProcessControlRequest();
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}
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Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
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USB_INT_Enable(USB_INT_RXSTPI);
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Endpoint_SelectEndpoint(PrevSelectedEndpoint);
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}
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#endif
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