diff options
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel/USBInterrupt.c')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/USBInterrupt.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/USBInterrupt.c b/LUFA/Drivers/USB/LowLevel/USBInterrupt.c new file mode 100644 index 0000000..c3e87e3 --- /dev/null +++ b/LUFA/Drivers/USB/LowLevel/USBInterrupt.c @@ -0,0 +1,269 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 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 disclaim 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.
+*/
+
+#define __INCLUDE_FROM_USB_DRIVER
+#include "USBInterrupt.h"
+
+void USB_INT_DisableAllInterrupts(void)
+{
+ #if defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ USBCON &= ~((1 << VBUSTE) | (1 << IDTE));
+ #elif defined(USB_SERIES_4_AVR)
+ USBCON &= ~(1 << VBUSTE);
+ #endif
+
+ #if defined(USB_CAN_BE_BOTH)
+ OTGIEN = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_HOST)
+ UHIEN = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_DEVICE)
+ UDIEN = 0;
+ #endif
+}
+
+void USB_INT_ClearAllInterrupts(void)
+{
+ #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ USBINT = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_BOTH)
+ OTGINT = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_HOST)
+ UHINT = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_DEVICE)
+ UDINT = 0;
+ #endif
+}
+
+ISR(USB_GEN_vect, ISR_BLOCK)
+{
+ #if defined(USB_CAN_BE_DEVICE)
+ #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
+ if (USB_INT_HasOccurred(USB_INT_VBUS) && USB_INT_IsEnabled(USB_INT_VBUS))
+ {
+ USB_INT_Clear(USB_INT_VBUS);
+
+ if (USB_VBUS_GetStatus())
+ {
+ USB_DeviceState = DEVICE_STATE_Powered;
+ EVENT_USB_Device_Connect();
+ }
+ else
+ {
+ USB_DeviceState = DEVICE_STATE_Unattached;
+ EVENT_USB_Device_Disconnect();
+ }
+ }
+ #endif
+
+ if (USB_INT_HasOccurred(USB_INT_SUSPI) && USB_INT_IsEnabled(USB_INT_SUSPI))
+ {
+ USB_INT_Clear(USB_INT_SUSPI);
+
+ USB_INT_Disable(USB_INT_SUSPI);
+ USB_INT_Enable(USB_INT_WAKEUPI);
+
+ USB_CLK_Freeze();
+
+ if (!(USB_Options & USB_OPT_MANUAL_PLL))
+ USB_PLL_Off();
+
+ #if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
+ USB_DeviceState = DEVICE_STATE_Unattached;
+ EVENT_USB_Device_Disconnect();
+ #else
+ USB_DeviceState = DEVICE_STATE_Suspended;
+ EVENT_USB_Device_Suspend();
+ #endif
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_WAKEUPI) && USB_INT_IsEnabled(USB_INT_WAKEUPI))
+ {
+ if (!(USB_Options & USB_OPT_MANUAL_PLL))
+ {
+ USB_PLL_On();
+ while (!(USB_PLL_IsReady()));
+ }
+
+ USB_CLK_Unfreeze();
+
+ USB_INT_Clear(USB_INT_WAKEUPI);
+
+ USB_INT_Disable(USB_INT_WAKEUPI);
+ USB_INT_Enable(USB_INT_SUSPI);
+
+ if (USB_ConfigurationNumber)
+ USB_DeviceState = DEVICE_STATE_Configured;
+ else
+ USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
+
+ #if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
+ EVENT_USB_Device_Connect();
+ #else
+ EVENT_USB_Device_WakeUp();
+ #endif
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
+ {
+ USB_INT_Clear(USB_INT_EORSTI);
+
+ USB_DeviceState = DEVICE_STATE_Default;
+ USB_ConfigurationNumber = 0;
+
+ USB_INT_Clear(USB_INT_SUSPI);
+ USB_INT_Disable(USB_INT_SUSPI);
+ USB_INT_Enable(USB_INT_WAKEUPI);
+
+ Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
+ ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
+ ENDPOINT_BANK_SINGLE);
+
+ #if defined(INTERRUPT_CONTROL_ENDPOINT)
+ USB_INT_Enable(USB_INT_RXSTPI);
+ #endif
+
+ EVENT_USB_Device_Reset();
+ }
+
+ #if !defined(NO_SOF_EVENTS)
+ if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
+ {
+ USB_INT_Clear(USB_INT_SOFI);
+
+ EVENT_USB_Device_StartOfFrame();
+ }
+ #endif
+ #endif
+
+ #if defined(USB_CAN_BE_HOST)
+ if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
+ {
+ USB_INT_Clear(USB_INT_DDISCI);
+ USB_INT_Clear(USB_INT_DCONNI);
+ USB_INT_Disable(USB_INT_DDISCI);
+
+ EVENT_USB_Host_DeviceUnattached();
+
+ USB_ResetInterface();
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
+ {
+ USB_INT_Clear(USB_INT_VBERRI);
+
+ USB_Host_VBUS_Manual_Off();
+ USB_Host_VBUS_Auto_Off();
+
+ EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
+ EVENT_USB_Host_DeviceUnattached();
+
+ USB_HostState = HOST_STATE_Unattached;
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_SRPI) && USB_INT_IsEnabled(USB_INT_SRPI))
+ {
+ USB_INT_Clear(USB_INT_SRPI);
+ USB_INT_Disable(USB_INT_SRPI);
+
+ EVENT_USB_Host_DeviceAttached();
+
+ USB_INT_Enable(USB_INT_DDISCI);
+
+ USB_HostState = HOST_STATE_Powered;
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
+ {
+ USB_INT_Clear(USB_INT_BCERRI);
+
+ EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
+ EVENT_USB_Host_DeviceUnattached();
+
+ USB_ResetInterface();
+ }
+
+ #if !defined(NO_SOF_EVENTS)
+ if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
+ {
+ USB_INT_Clear(USB_INT_HSOFI);
+
+ EVENT_USB_Host_StartOfFrame();
+ }
+ #endif
+ #endif
+
+ #if defined(USB_CAN_BE_BOTH)
+ if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
+ {
+ USB_INT_Clear(USB_INT_IDTI);
+
+ if (USB_DeviceState != DEVICE_STATE_Unattached)
+ EVENT_USB_Device_Disconnect();
+
+ if (USB_HostState != HOST_STATE_Unattached)
+ EVENT_USB_Host_DeviceUnattached();
+
+ USB_CurrentMode = USB_GetUSBModeFromUID();
+ USB_ResetInterface();
+
+ EVENT_USB_UIDChange();
+ }
+ #endif
+}
+
+#if defined(INTERRUPT_CONTROL_ENDPOINT) && defined(USB_CAN_BE_DEVICE)
+ISR(USB_COM_vect, ISR_BLOCK)
+{
+ uint8_t PrevSelectedEndpoint = Endpoint_GetCurrentEndpoint();
+
+ Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+ USB_INT_Disable(USB_INT_RXSTPI);
+
+ NONATOMIC_BLOCK(NONATOMIC_FORCEOFF)
+ {
+ USB_Device_ProcessControlRequest();
+ }
+
+ Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+ USB_INT_Enable(USB_INT_RXSTPI);
+ Endpoint_SelectEndpoint(PrevSelectedEndpoint);
+}
+#endif
+
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