Misc: add sensable phantom driver

Add sensable phantom driver
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Documentation/ioctl-number.txt

@@ -138,7 +138,8 @@ Code	Seq#	Include File		Comments
 'm'	00-1F	net/irda/irmod.h	conflict!
 'n'	00-7F	linux/ncp_fs.h
 'n'	E0-FF	video/matrox.h          matroxfb
-'p'	00-3F	linux/mc146818rtc.h
+'p'	00-0F	linux/phantom.h		conflict! (OpenHaptics needs this)
+'p'	00-3F	linux/mc146818rtc.h	conflict!
 'p'	40-7F	linux/nvram.h
 'p'	80-9F				user-space parport
 					<mailto:tim@cyberelk.net>

MAINTAINERS

@@ -3108,6 +3108,11 @@ L: 	selinux@tycho.nsa.gov (subscribers-only, general discussion)
 W:	http://www.nsa.gov/selinux
 S:	Supported
 
+SENSABLE PHANTOM
+P:	Jiri Slaby
+M:	jirislaby@gmail.com
+S:	Maintained
+
 SERIAL ATA (SATA) SUBSYSTEM:
 P:	Jeff Garzik
 M:	jgarzik@pobox.com

drivers/misc/Kconfig

@@ -25,6 +25,15 @@ config IBM_ASM
 	  information on the specific driver level and support statement
 	  for your IBM server.
 
+config PHANTOM
+	tristate "Sensable PHANToM"
+	depends on PCI
+	help
+	  Say Y here if you want to build a driver for Sensable PHANToM device.
+
+	  If you choose to build module, its name will be phantom. If unsure,
+	  say N here.
+
 
 	  If unsure, say N.
 

drivers/misc/Makefile

@@ -11,6 +11,7 @@ obj-$(CONFIG_BLINK)		+= blink.o
 obj-$(CONFIG_LKDTM)		+= lkdtm.o
 obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o
 obj-$(CONFIG_TIFM_7XX1)       	+= tifm_7xx1.o
+obj-$(CONFIG_PHANTOM)		+= phantom.o
 obj-$(CONFIG_SGI_IOC4)		+= ioc4.o
 obj-$(CONFIG_SONY_LAPTOP)	+= sony-laptop.o
 obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o

include/linux/Kbuild

@@ -121,6 +121,7 @@ header-y += pci_regs.h
 header-y += personality.h
 header-y += pfkeyv2.h
 header-y += pg.h
+header-y += phantom.h
 header-y += pkt_cls.h
 header-y += pkt_sched.h
 header-y += posix_types.h

include/linux/phantom.h

+/*
+ *  Copyright (C) 2005-2007 Jiri Slaby <jirislaby@gmail.com>
+ *
+ *  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.
+ */
+
+#ifndef __PHANTOM_H
+#define __PHANTOM_H
+
+#include <asm/types.h>
+
+/* PHN_(G/S)ET_REG param */
+struct phm_reg {
+	__u32 reg;
+	__u32 value;
+};
+
+/* PHN_(G/S)ET_REGS param */
+struct phm_regs {
+	__u32 count;
+	__u32 mask;
+	__u32 values[8];
+};
+
+#define PH_IOC_MAGIC		'p'
+#define PHN_GET_REG		_IOWR(PH_IOC_MAGIC, 0, struct phm_reg *)
+#define PHN_SET_REG		_IOW (PH_IOC_MAGIC, 1, struct phm_reg *)
+#define PHN_GET_REGS		_IOWR(PH_IOC_MAGIC, 2, struct phm_regs *)
+#define PHN_SET_REGS		_IOW (PH_IOC_MAGIC, 3, struct phm_regs *)
+#define PH_IOC_MAXNR		3
+
+#define PHN_CONTROL		0x6     /* control byte in iaddr space */
+#define PHN_CTL_AMP		0x1     /*   switch after torques change */
+#define PHN_CTL_BUT		0x2     /*   is button switched */
+#define PHN_CTL_IRQ		0x10    /*   is irq enabled */
+
+#define PHN_ZERO_FORCE		2048	/* zero torque on motor */
+
+#endif