Commit 8b8be51b authored by Thomas Hellstrom's avatar Thomas Hellstrom Committed by Dmitry Torokhov
Browse files

Input: add vmmouse driver 



VMMouse enables low-latency mouse-cursor-movements for VMWare and QEMU
guests.  By removing the guest cursor and using the host as a guest cursor
the cursor movement appears instant although in reality there is some lag.
To be able to do this, the host's view of the cursor position must exactly
match the guest's view and an absolute pointer device is needed. Enter the
VMMouse. While the VMMouse driver has historically been an Xorg user-space
driver, implementing it as a kernel imput driver enables rootless Xorg and
new compositing display servers for VMware guests.

Signed-off-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent b9bced0e

MAINTAINERS

+8 −0
Original line number Diff line number Diff line
@@ -10530,6 +10530,14 @@ L: linux-kernel@vger.kernel.org 
S:	Maintained

F:	drivers/misc/vmw_balloon.c



VMWARE VMMOUSE SUBDRIVER

M:	"VMware Graphics" <linux-graphics-maintainer@vmware.com>

M:	"VMware, Inc." <pv-drivers@vmware.com>

L:	linux-input@vger.kernel.org

S:	Maintained

F:	drivers/input/mouse/vmmouse.c

F:	drivers/input/mouse/vmmouse.h



VMWARE VMXNET3 ETHERNET DRIVER

M:	Shreyas Bhatewara <sbhatewara@vmware.com>

M:	"VMware, Inc." <pv-drivers@vmware.com>

drivers/input/mouse/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -149,6 +149,18 @@ config MOUSE_PS2_FOCALTECH 


	  If unsure, say Y.



config MOUSE_PS2_VMMOUSE

	bool "Virtual mouse (vmmouse)"

	depends on MOUSE_PS2 && X86 && HYPERVISOR_GUEST

	help

	  Say Y here if you are running under control of VMware hypervisor

	  (ESXi, Workstation or Fusion). Also make sure that when you enable

	  this option, you remove the xf86-input-vmmouse user-space driver

	  or upgrade it to at least xf86-input-vmmouse 13.0.1, which doesn't

	  load in the presence of an in-kernel vmmouse driver.



	  If unsure, say N.



config MOUSE_SERIAL

	tristate "Serial mouse"

	select SERIO

drivers/input/mouse/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o 
psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT)	+= trackpoint.o

psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT)	+= touchkit_ps2.o

psmouse-$(CONFIG_MOUSE_PS2_CYPRESS)	+= cypress_ps2.o

psmouse-$(CONFIG_MOUSE_PS2_VMMOUSE)	+= vmmouse.o



elan_i2c-objs := elan_i2c_core.o

elan_i2c-$(CONFIG_MOUSE_ELAN_I2C_I2C)	+= elan_i2c_i2c.o

drivers/input/mouse/psmouse-base.c

+17 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ 
#include "sentelic.h"

#include "cypress_ps2.h"

#include "focaltech.h"

#include "vmmouse.h"



#define DRIVER_DESC	"PS/2 mouse driver"
@@ -790,6 +791,13 @@ static int psmouse_extensions(struct psmouse *psmouse, 
		}

	}



	if (psmouse_do_detect(vmmouse_detect, psmouse, set_properties) == 0) {

		if (max_proto > PSMOUSE_IMEX) {

			if (!set_properties || vmmouse_init(psmouse) == 0)

				return PSMOUSE_VMMOUSE;

		}

	}



/*

 * Try Kensington ThinkingMouse (we try first, because synaptics probe

 * upsets the thinkingmouse).
@@ -1112,6 +1120,15 @@ static const struct psmouse_protocol psmouse_protocols[] = { 
		.detect		= focaltech_detect,

		.init		= focaltech_init,

	},

#endif

#ifdef CONFIG_MOUSE_PS2_VMMOUSE

	{

		.type		= PSMOUSE_VMMOUSE,

		.name		= VMMOUSE_PSNAME,

		.alias		= "vmmouse",

		.detect		= vmmouse_detect,

		.init		= vmmouse_init,

	},

#endif

	{

		.type		= PSMOUSE_AUTO,

drivers/input/mouse/psmouse.h

+1 −0
Original line number Diff line number Diff line
@@ -103,6 +103,7 @@ enum psmouse_type { 
	PSMOUSE_SYNAPTICS_RELATIVE,

	PSMOUSE_CYPRESS,

	PSMOUSE_FOCALTECH,

	PSMOUSE_VMMOUSE,

	PSMOUSE_AUTO		/* This one should always be last */

};

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