summaryrefslogtreecommitdiff
path: root/LUFA/Drivers/USB/HighLevel/USBTask.c
diff options
context:
space:
mode:
Diffstat (limited to 'LUFA/Drivers/USB/HighLevel/USBTask.c')
-rw-r--r--LUFA/Drivers/USB/HighLevel/USBTask.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/HighLevel/USBTask.c b/LUFA/Drivers/USB/HighLevel/USBTask.c
new file mode 100644
index 0000000..6967283
--- /dev/null
+++ b/LUFA/Drivers/USB/HighLevel/USBTask.c
@@ -0,0 +1,89 @@
+/*
+ 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_USBTASK_C
+#define __INCLUDE_FROM_USB_DRIVER
+#include "USBTask.h"
+
+volatile bool USB_IsInitialized;
+USB_Request_Header_t USB_ControlRequest;
+
+#if defined(USB_CAN_BE_HOST) && !defined(HOST_STATE_AS_GPIOR)
+volatile uint8_t USB_HostState;
+#endif
+
+#if defined(USB_CAN_BE_DEVICE) && !defined(DEVICE_STATE_AS_GPIOR)
+volatile uint8_t USB_DeviceState;
+#endif
+
+void USB_USBTask(void)
+{
+ #if defined(USB_HOST_ONLY)
+ USB_HostTask();
+ #elif defined(USB_DEVICE_ONLY)
+ USB_DeviceTask();
+ #else
+ if (USB_CurrentMode == USB_MODE_Device)
+ USB_DeviceTask();
+ else if (USB_CurrentMode == USB_MODE_Host)
+ USB_HostTask();
+ #endif
+}
+
+#if defined(USB_CAN_BE_DEVICE)
+static void USB_DeviceTask(void)
+{
+ if (USB_DeviceState != DEVICE_STATE_Unattached)
+ {
+ uint8_t PrevEndpoint = Endpoint_GetCurrentEndpoint();
+
+ Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+
+ if (Endpoint_IsSETUPReceived())
+ USB_Device_ProcessControlRequest();
+
+ Endpoint_SelectEndpoint(PrevEndpoint);
+ }
+}
+#endif
+
+#if defined(USB_CAN_BE_HOST)
+static void USB_HostTask(void)
+{
+ uint8_t PrevPipe = Pipe_GetCurrentPipe();
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ USB_Host_ProcessNextHostState();
+
+ Pipe_SelectPipe(PrevPipe);
+}
+#endif
+