diff options
Diffstat (limited to 'LUFA/Drivers/USB/HighLevel/USBInterrupt.c')
| -rw-r--r-- | LUFA/Drivers/USB/HighLevel/USBInterrupt.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/HighLevel/USBInterrupt.c b/LUFA/Drivers/USB/HighLevel/USBInterrupt.c new file mode 100644 index 000000000..58faa69de --- /dev/null +++ b/LUFA/Drivers/USB/HighLevel/USBInterrupt.c @@ -0,0 +1,252 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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.
+*/
+
+#include "../LowLevel/USBMode.h"
+#include "USBInterrupt.h"
+
+void USB_INT_DisableAllInterrupts(void)
+{
+ #if defined(USB_FULL_CONTROLLER)
+ USBCON &= ~((1 << VBUSTE) | (1 << IDTE));
+ #elif defined(USB_MODIFIED_FULL_CONTROLLER)
+ USBCON &= ~(1 << VBUSTE);
+ #endif
+
+ #if defined(USB_CAN_BE_HOST)
+ UHIEN = 0;
+ OTGIEN = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_DEVICE)
+ UDIEN = 0;
+ #endif
+}
+
+void USB_INT_ClearAllInterrupts(void)
+{
+ #if defined(USB_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER)
+ USBINT = 0;
+ #endif
+
+ #if defined(USB_CAN_BE_HOST)
+ UHINT = 0;
+ OTGINT = 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_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER)
+ if (USB_INT_HasOccurred(USB_INT_VBUS) && USB_INT_IsEnabled(USB_INT_VBUS))
+ {
+ USB_INT_Clear(USB_INT_VBUS);
+
+ RAISE_EVENT(USB_VBUSChange);
+
+ if (USB_VBUS_GetStatus())
+ {
+ RAISE_EVENT(USB_VBUSConnect);
+
+ if (USB_IsConnected)
+ RAISE_EVENT(USB_Disconnect);
+
+ USB_ResetInterface();
+
+ USB_IsConnected = true;
+
+ RAISE_EVENT(USB_Connect);
+ }
+ else
+ {
+ RAISE_EVENT(USB_Disconnect);
+
+ USB_Detach();
+ USB_CLK_Freeze();
+ USB_PLL_Off();
+ USB_REG_Off();
+
+ USB_IsConnected = false;
+
+ RAISE_EVENT(USB_VBUSDisconnect);
+
+ USB_INT_Clear(USB_INT_VBUS);
+ }
+ }
+ #endif
+
+ if (USB_INT_HasOccurred(USB_INT_SUSPEND) && USB_INT_IsEnabled(USB_INT_SUSPEND))
+ {
+ USB_INT_Clear(USB_INT_SUSPEND);
+
+ USB_INT_Disable(USB_INT_SUSPEND);
+ USB_INT_Enable(USB_INT_WAKEUP);
+
+ USB_CLK_Freeze();
+
+ if (!(USB_Options & USB_OPT_MANUAL_PLL))
+ USB_PLL_Off();
+
+ USB_IsSuspended = true;
+
+ RAISE_EVENT(USB_Suspend);
+
+ #if defined(USB_LIMITED_CONTROLLER) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
+ if (USB_IsConnected)
+ {
+ USB_IsConnected = false;
+ RAISE_EVENT(USB_Disconnect);
+ }
+ #endif
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_WAKEUP) && USB_INT_IsEnabled(USB_INT_WAKEUP))
+ {
+ if (!(USB_Options & USB_OPT_MANUAL_PLL))
+ {
+ USB_PLL_On();
+ while (!(USB_PLL_IsReady()));
+ }
+
+ USB_CLK_Unfreeze();
+
+ USB_INT_Clear(USB_INT_WAKEUP);
+
+ USB_INT_Disable(USB_INT_WAKEUP);
+ USB_INT_Enable(USB_INT_SUSPEND);
+
+ #if defined(USB_LIMITED_CONTROLLER) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
+ if (!(USB_IsConnected))
+ {
+ USB_IsConnected = true;
+ RAISE_EVENT(USB_Connect);
+ }
+ #endif
+
+ USB_IsSuspended = false;
+
+ RAISE_EVENT(USB_WakeUp);
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
+ {
+ USB_INT_Clear(USB_INT_EORSTI);
+
+ USB_ConfigurationNumber = 0;
+
+ USB_INT_Clear(USB_INT_SUSPEND);
+ USB_INT_Disable(USB_INT_SUSPEND);
+ USB_INT_Enable(USB_INT_WAKEUP);
+
+ Endpoint_ClearEndpoints();
+
+ Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
+ ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
+ ENDPOINT_BANK_SINGLE);
+
+ RAISE_EVENT(USB_Reset);
+ }
+ #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);
+
+ RAISE_EVENT(USB_DeviceUnattached);
+ RAISE_EVENT(USB_Disconnect);
+
+ 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();
+
+ RAISE_EVENT(USB_HostError, HOST_ERROR_VBusVoltageDip);
+ RAISE_EVENT(USB_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);
+
+ RAISE_EVENT(USB_DeviceAttached);
+
+ USB_INT_Enable(USB_INT_DDISCI);
+
+ USB_HostState = HOST_STATE_Attached;
+ }
+
+ if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
+ {
+ USB_INT_Clear(USB_INT_BCERRI);
+
+ RAISE_EVENT(USB_DeviceEnumerationFailed, HOST_ENUMERROR_NoDeviceDetected, 0);
+ RAISE_EVENT(USB_DeviceUnattached);
+
+ if (USB_IsConnected)
+ RAISE_EVENT(USB_Disconnect);
+
+ USB_ResetInterface();
+ }
+ #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_IsConnected)
+ {
+ if (USB_CurrentMode == USB_MODE_HOST)
+ RAISE_EVENT(USB_DeviceUnattached);
+ else
+ RAISE_EVENT(USB_Disconnect);
+ }
+
+ RAISE_EVENT(USB_UIDChange);
+
+ USB_ResetInterface();
+ }
+ #endif
+}
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