Staging: add ced1401 USB driver

This was imported from the
http://pub.ist.ac.at/~schloegl/src/ced1401/.git git repo at the request
of Alois.  The driver originally came from Cambridge Electronic Design
Ltd and was authored by Greg P Smith and others, but Alois did the
maintance work to get it into a semi-building state and pushed to get it
into the main kernel tree here.

Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Cc: Greg P. Smith <greg@ced.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ced1401/Makefile

+obj-m := cedusb.o
+cedusb-objs := usb1401.o ced_ioc.o
+KDIR := /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+KBUILD_EXTRA_SYMBOLS := $(PWD)
+EXTRA_CFLAGS = -I$(HOME)/src/ced1401 
+all:
+	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
+
+clean:
+	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) clean
+

drivers/staging/ced1401/machine.h

+/*****************************************************************************
+**
+** machine.h
+**
+** Copyright (c) Cambridge Electronic Design Limited 1991,1992,2010
+**
+** This program is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License
+** as published by the Free Software Foundation; either version 2
+** of the License, or (at your option) any later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**
+** Contact CED: Cambridge Electronic Design Limited, Science Park, Milton Road
+**              Cambridge, CB6 0FE.
+**              www.ced.co.uk
+**              greg@ced.co.uk
+**
+** This file is included at the start of 'C' or 'C++' source file to define
+** things for cross-platform/compiler interoperability. This used to deal with
+** MSDOS/16-bit stuff, but this was all removed in Decemeber 2010. There are
+** three things to consider: Windows, LINUX, mac OSX (BSD Unix) and 32 vs 64
+** bit. At the time of writing (DEC 2010) there is a consensus on the following
+** and their unsigned equivalents:
+**
+** type       bits
+** char         8
+** short       16
+** int         32
+** long long   64
+**
+** long is a problem as it is always 64 bits on linux/unix and is always 32 bits
+** on windows.
+** On windows, we define _IS_WINDOWS_ and one of WIN32 or WIN64.
+** On linux we define LINUX
+** On Max OSX we define MACOSX
+**
+*/
+
+#ifndef __MACHINE_H__
+#define __MACHINE_H__
+#ifndef __KERNEL__
+#include <float.h>
+#include <limits.h>
+#endif
+
+/*
+** The initial section is to identify the operating system
+*/
+#if (defined(__linux__) || defined(_linux) || defined(__linux)) && !defined(LINUX)
+#define LINUX 1
+#endif
+
+#if (defined(__WIN32__) || defined(_WIN32)) && !defined(WIN32)
+#define WIN32 1
+#endif
+
+#if defined(__APPLE__)
+#define MACOSX
+#endif
+
+#if defined(_WIN64)
+#undef WIN32
+#undef WIN64
+#define WIN64 1
+#endif
+
+#if defined(WIN32) || defined(WIN64)
+#define _IS_WINDOWS_ 1
+#endif
+
+#if defined(LINUX) || defined(MAXOSX)
+    #define FAR
+
+    typedef int BOOL;       // To match Windows
+    typedef char * LPSTR;
+    typedef const char * LPCSTR;
+    typedef unsigned short WORD;
+    typedef unsigned int  DWORD;
+    typedef unsigned char  BYTE;
+    typedef BYTE  BOOLEAN;
+    typedef unsigned char UCHAR;
+    #define __packed __attribute__((packed))
+    typedef BYTE * LPBYTE;
+    #define HIWORD(x) (WORD)(((x)>>16) & 0xffff)
+    #define LOWORD(x) (WORD)((x) & 0xffff)
+#endif
+
+#ifdef _IS_WINDOWS_
+#include <windows.h>
+#define __packed
+#endif
+
+/*
+** Sort out the DllExport and DllImport macros. The GCC compiler has its own
+** syntax for this, though it also supports the MS specific __declspec() as
+** a synonym.
+*/
+#ifdef GNUC
+    #define DllExport __attribute__((dllexport))
+    #define DllImport __attribute__((dllimport))
+#endif
+
+#ifndef DllExport
+#ifdef _IS_WINDOWS_
+    #define DllExport __declspec(dllexport)
+    #define DllImport __declspec(dllimport)
+#else
+    #define DllExport
+    #define DllImport
+#endif
+#endif /* _IS_WINDOWS_ */
+
+    
+#ifndef TRUE
+   #define TRUE 1
+   #define FALSE 0
+#endif
+
+#endif