Add host mode USB Class driver stubs, add beginnings of a CDC host class driver.

Split out common defines/types from class drivers into a seperate common class driver directory.

Make central USB Class driver dispatch headers, used for both device and host modes.

LUFA/Drivers/USB/Class/Common/HID.h

@@ -0,0 +1,112 @@
+/*
+             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.
+*/
+
+/** \ingroup Group_USBClassHID
+ *  @{
+ */
+ 
+#ifndef _HID_CLASS_COMMON_H_
+#define _HID_CLASS_COMMON_H_
+
+	/* Includes: */
+		#include "../../USB.h"
+
+		#include <string.h>
+
+	/* Macros: */
+		/** HID Class Specific Request to get the current HID report from the device. */
+		#define REQ_GetReport      0x01
+
+		/** HID Class Specific Request to get the current device idle count. */
+		#define REQ_GetIdle        0x02
+
+		/** HID Class Specific Request to set the current HID report to the device. */
+		#define REQ_SetReport      0x09
+
+		/** HID Class Specific Request to set the device's idle count. */
+		#define REQ_SetIdle        0x0A
+
+		/** HID Class Specific Request to get the current HID report protocol mode. */
+		#define REQ_GetProtocol    0x03
+
+		/** HID Class Specific Request to set the current HID report protocol mode. */
+		#define REQ_SetProtocol    0x0B
+
+		/** Descriptor header type value, to indicate a HID class HID descriptor. */
+		#define DTYPE_HID          0x21
+		
+		/** Descriptor header type value, to indicate a HID class HID report descriptor. */
+		#define DTYPE_Report       0x22
+		
+	/* Type Defines: */
+		/** Type define for the HID class specific HID descriptor, to describe the HID device's specifications. Refer to the HID
+		 *  specification for details on the structure elements.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Header_t               Header;
+				
+			uint16_t                              HIDSpec;
+			uint8_t                               CountryCode;
+		
+			uint8_t                               TotalReportDescriptors;
+
+			uint8_t                               HIDReportType;
+			uint16_t                              HIDReportLength;
+		} USB_Descriptor_HID_t;
+
+		/** Type define for the data type used to store HID report descriptor elements. */
+		typedef uint8_t USB_Descriptor_HIDReport_Datatype_t;
+
+		/** Class state structure. An instance of this structure should be made for each HID interface
+		 *  within the user application, and passed to each of the HID class driver functions as the
+		 *  HIDInterfaceInfo parameter. The contents of this structure should be set to their correct
+		 *  values when used, or ommitted to force the library to use default values.
+		 *
+		 *  Note that for the HID class driver, host-to-device reports are received via HID class requests
+		 *  rather than a dedicated endpoint to simplify the driver and its interface.
+		 */
+		typedef struct
+		{
+			uint8_t  InterfaceNumber; /**< Interface number of the HID interface within the device */
+
+			uint8_t  ReportINEndpointNumber; /**< Endpoint number of the HID interface's IN report endpoint */
+			uint16_t ReportINEndpointSize; /**< Size in bytes of the HID interface's IN report endpoint */
+			
+			uint8_t  ReportINBufferSize; /**< Size of the largest possible report to send to the host, for buffer allocation purposes */
+
+			bool     UsingReportProtocol; /**< Indicates if the HID interface is set to Boot or Report protocol mode */
+			uint16_t IdleCount; /**< Report idle period, in ms, set by the host */
+			uint16_t IdleMSRemaining; /**< Total number of ms remaining before the idle period elapses */
+		} USB_ClassInfo_HID_t;
+
+#endif
+
+/** @} */