8 files changed, 465 insertions, 163 deletions

diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 4e993425977..093c8c1bca7 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -286,4 +286,10 @@ config MOUSE_GPIO
 	  To compile this driver as a module, choose M here: the
 	  module will be called gpio_mouse.
 
+config MOUSE_PXA930_TRKBALL
+	tristate "PXA930 Trackball mouse"
+	depends on CPU_PXA930 || CPU_PXA935
+	help
+	  Say Y here to support PXA930 Trackball mouse.
+
 endif
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 96f1dd8037f..8c8a1f236e2 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -4,19 +4,20 @@
 
 # Each configuration option enables a list of files.
 
-obj-$(CONFIG_MOUSE_AMIGA)	+= amimouse.o
-obj-$(CONFIG_MOUSE_APPLETOUCH)	+= appletouch.o
-obj-$(CONFIG_MOUSE_BCM5974)	+= bcm5974.o
-obj-$(CONFIG_MOUSE_ATARI)	+= atarimouse.o
-obj-$(CONFIG_MOUSE_RISCPC)	+= rpcmouse.o
-obj-$(CONFIG_MOUSE_INPORT)	+= inport.o
-obj-$(CONFIG_MOUSE_LOGIBM)	+= logibm.o
-obj-$(CONFIG_MOUSE_PC110PAD)	+= pc110pad.o
-obj-$(CONFIG_MOUSE_PS2)		+= psmouse.o
-obj-$(CONFIG_MOUSE_SERIAL)	+= sermouse.o
-obj-$(CONFIG_MOUSE_HIL)		+= hil_ptr.o
-obj-$(CONFIG_MOUSE_VSXXXAA)	+= vsxxxaa.o
-obj-$(CONFIG_MOUSE_GPIO)	+= gpio_mouse.o
+obj-$(CONFIG_MOUSE_AMIGA)		+= amimouse.o
+obj-$(CONFIG_MOUSE_APPLETOUCH)		+= appletouch.o
+obj-$(CONFIG_MOUSE_BCM5974)		+= bcm5974.o
+obj-$(CONFIG_MOUSE_ATARI)		+= atarimouse.o
+obj-$(CONFIG_MOUSE_RISCPC)		+= rpcmouse.o
+obj-$(CONFIG_MOUSE_INPORT)		+= inport.o
+obj-$(CONFIG_MOUSE_LOGIBM)		+= logibm.o
+obj-$(CONFIG_MOUSE_PC110PAD)		+= pc110pad.o
+obj-$(CONFIG_MOUSE_PS2)			+= psmouse.o
+obj-$(CONFIG_MOUSE_PXA930_TRKBALL)	+= pxa930_trkball.o
+obj-$(CONFIG_MOUSE_SERIAL)		+= sermouse.o
+obj-$(CONFIG_MOUSE_HIL)			+= hil_ptr.o
+obj-$(CONFIG_MOUSE_VSXXXAA)		+= vsxxxaa.o
+obj-$(CONFIG_MOUSE_GPIO)		+= gpio_mouse.o
 
 psmouse-objs := psmouse-base.o synaptics.o
 
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index 079816e6b23..454b96112f0 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -3,7 +3,7 @@
  *
  * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (C) 2005-2008 Johannes Berg (johannes@sipsolutions.net)
- * Copyright (C) 2005      Stelian Pop (stelian@popies.net)
+ * Copyright (C) 2005-2008 Stelian Pop (stelian@popies.net)
  * Copyright (C) 2005      Frank Arnold (frank@scirocco-5v-turbo.de)
  * Copyright (C) 2005      Peter Osterlund (petero2@telia.com)
  * Copyright (C) 2005      Michael Hanselmann (linux-kernel@hansmi.ch)
@@ -35,16 +35,74 @@
 #include <linux/module.h>
 #include <linux/usb/input.h>
 
-/* Type of touchpad */
-enum atp_touchpad_type {
-	ATP_FOUNTAIN,
-	ATP_GEYSER1,
-	ATP_GEYSER2,
-	ATP_GEYSER3,
-	ATP_GEYSER4
+/*
+ * Note: We try to keep the touchpad aspect ratio while still doing only
+ * simple arithmetics:
+ *	0 <= x <= (xsensors - 1) * xfact
+ *	0 <= y <= (ysensors - 1) * yfact
+ */
+struct atp_info {
+	int xsensors;				/* number of X sensors */
+	int xsensors_17;			/* 17" models have more sensors */
+	int ysensors;				/* number of Y sensors */
+	int xfact;				/* X multiplication factor */
+	int yfact;				/* Y multiplication factor */
+	int datalen;				/* size of USB transfers */
+	void (*callback)(struct urb *);		/* callback function */
+};
+
+static void atp_complete_geyser_1_2(struct urb *urb);
+static void atp_complete_geyser_3_4(struct urb *urb);
+
+static const struct atp_info fountain_info = {
+	.xsensors	= 16,
+	.xsensors_17	= 26,
+	.ysensors	= 16,
+	.xfact		= 64,
+	.yfact		= 43,
+	.datalen	= 81,
+	.callback	= atp_complete_geyser_1_2,
+};
+
+static const struct atp_info geyser1_info = {
+	.xsensors	= 16,
+	.xsensors_17	= 26,
+	.ysensors	= 16,
+	.xfact		= 64,
+	.yfact		= 43,
+	.datalen	= 81,
+	.callback	= atp_complete_geyser_1_2,
+};
+
+static const struct atp_info geyser2_info = {
+	.xsensors	= 15,
+	.xsensors_17	= 20,
+	.ysensors	= 9,
+	.xfact		= 64,
+	.yfact		= 43,
+	.datalen	= 64,
+	.callback	= atp_complete_geyser_1_2,
+};
+
+static const struct atp_info geyser3_info = {
+	.xsensors	= 20,
+	.ysensors	= 10,
+	.xfact		= 64,
+	.yfact		= 64,
+	.datalen	= 64,
+	.callback	= atp_complete_geyser_3_4,
 };
 
-#define ATP_DEVICE(prod, type)					\
+static const struct atp_info geyser4_info = {
+	.xsensors	= 20,
+	.ysensors	= 10,
+	.xfact		= 64,
+	.yfact		= 64,
+	.datalen	= 64,
+	.callback	= atp_complete_geyser_3_4,
+};
+
+#define ATP_DEVICE(prod, info)					\
 {								\
 	.match_flags = USB_DEVICE_ID_MATCH_DEVICE |		\
 		       USB_DEVICE_ID_MATCH_INT_CLASS |		\
@@ -53,7 +111,7 @@ enum atp_touchpad_type {
 	.idProduct = (prod),					\
 	.bInterfaceClass = 0x03,				\
 	.bInterfaceProtocol = 0x02,				\
-	.driver_info = ATP_ ## type,				\
+	.driver_info = (unsigned long) &info,			\
 }
 
 /*
@@ -62,43 +120,39 @@ enum atp_touchpad_type {
  *  According to Info.plist Geyser IV is the same as Geyser III.)
  */
 
-static struct usb_device_id atp_table [] = {
+static struct usb_device_id atp_table[] = {
 	/* PowerBooks Feb 2005, iBooks G4 */
-	ATP_DEVICE(0x020e, FOUNTAIN),	/* FOUNTAIN ANSI */
-	ATP_DEVICE(0x020f, FOUNTAIN),	/* FOUNTAIN ISO */
-	ATP_DEVICE(0x030a, FOUNTAIN),	/* FOUNTAIN TP ONLY */
-	ATP_DEVICE(0x030b, GEYSER1),	/* GEYSER 1 TP ONLY */
+	ATP_DEVICE(0x020e, fountain_info),	/* FOUNTAIN ANSI */
+	ATP_DEVICE(0x020f, fountain_info),	/* FOUNTAIN ISO */
+	ATP_DEVICE(0x030a, fountain_info),	/* FOUNTAIN TP ONLY */
+	ATP_DEVICE(0x030b, geyser1_info),	/* GEYSER 1 TP ONLY */
 
 	/* PowerBooks Oct 2005 */
-	ATP_DEVICE(0x0214, GEYSER2),	/* GEYSER 2 ANSI */
-	ATP_DEVICE(0x0215, GEYSER2),	/* GEYSER 2 ISO */
-	ATP_DEVICE(0x0216, GEYSER2),	/* GEYSER 2 JIS */
+	ATP_DEVICE(0x0214, geyser2_info),	/* GEYSER 2 ANSI */
+	ATP_DEVICE(0x0215, geyser2_info),	/* GEYSER 2 ISO */
+	ATP_DEVICE(0x0216, geyser2_info),	/* GEYSER 2 JIS */
 
 	/* Core Duo MacBook & MacBook Pro */
-	ATP_DEVICE(0x0217, GEYSER3),	/* GEYSER 3 ANSI */
-	ATP_DEVICE(0x0218, GEYSER3),	/* GEYSER 3 ISO */
-	ATP_DEVICE(0x0219, GEYSER3),	/* GEYSER 3 JIS */
+	ATP_DEVICE(0x0217, geyser3_info),	/* GEYSER 3 ANSI */
+	ATP_DEVICE(0x0218, geyser3_info),	/* GEYSER 3 ISO */
+	ATP_DEVICE(0x0219, geyser3_info),	/* GEYSER 3 JIS */
 
 	/* Core2 Duo MacBook & MacBook Pro */
-	ATP_DEVICE(0x021a, GEYSER4),	/* GEYSER 4 ANSI */
-	ATP_DEVICE(0x021b, GEYSER4),	/* GEYSER 4 ISO */
-	ATP_DEVICE(0x021c, GEYSER4),	/* GEYSER 4 JIS */
+	ATP_DEVICE(0x021a, geyser4_info),	/* GEYSER 4 ANSI */
+	ATP_DEVICE(0x021b, geyser4_info),	/* GEYSER 4 ISO */
+	ATP_DEVICE(0x021c, geyser4_info),	/* GEYSER 4 JIS */
 
 	/* Core2 Duo MacBook3,1 */
-	ATP_DEVICE(0x0229, GEYSER4),	/* GEYSER 4 HF ANSI */
-	ATP_DEVICE(0x022a, GEYSER4),	/* GEYSER 4 HF ISO */
-	ATP_DEVICE(0x022b, GEYSER4),	/* GEYSER 4 HF JIS */
+	ATP_DEVICE(0x0229, geyser4_info),	/* GEYSER 4 HF ANSI */
+	ATP_DEVICE(0x022a, geyser4_info),	/* GEYSER 4 HF ISO */
+	ATP_DEVICE(0x022b, geyser4_info),	/* GEYSER 4 HF JIS */
 
 	/* Terminating entry */
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, atp_table);
 
-/*
- * number of sensors. Note that only 16 instead of 26 X (horizontal)
- * sensors exist on 12" and 15" PowerBooks. All models have 16 Y
- * (vertical) sensors.
- */
+/* maximum number of sensors */
 #define ATP_XSENSORS	26
 #define ATP_YSENSORS	16
 
@@ -107,21 +161,6 @@ MODULE_DEVICE_TABLE(usb, atp_table);
 
 /* maximum pressure this driver will report */
 #define ATP_PRESSURE	300
-/*
- * multiplication factor for the X and Y coordinates.
- * We try to keep the touchpad aspect ratio while still doing only simple
- * arithmetics.
- * The factors below give coordinates like:
- *
- *      0 <= x <  960 on 12" and 15" Powerbooks
- *      0 <= x < 1600 on 17" Powerbooks and 17" MacBook Pro
- *      0 <= x < 1216 on MacBooks and 15" MacBook Pro
- *
- *      0 <= y <  646 on all Powerbooks
- *      0 <= y <  774 on all MacBooks
- */
-#define ATP_XFACT	64
-#define ATP_YFACT	43
 
 /*
  * Threshold for the touchpad sensors. Any change less than ATP_THRESHOLD is
@@ -159,7 +198,7 @@ struct atp {
 	struct urb		*urb;		/* usb request block */
 	u8			*data;		/* transferred data */
 	struct input_dev	*input;		/* input dev */
-	enum atp_touchpad_type	type;		/* type of touchpad */
+	const struct atp_info	*info;		/* touchpad model */
 	bool			open;
 	bool			valid;		/* are the samples valid? */
 	bool			size_detect_done;
@@ -169,7 +208,6 @@ struct atp {
 	signed char		xy_cur[ATP_XSENSORS + ATP_YSENSORS];
 	signed char		xy_old[ATP_XSENSORS + ATP_YSENSORS];
 	int			xy_acc[ATP_XSENSORS + ATP_YSENSORS];
-	int			datalen;	/* size of USB transfer */
 	int			idlecount;	/* number of empty packets */
 	struct work_struct	work;
 };
@@ -359,7 +397,7 @@ static int atp_status_check(struct urb *urb)
 		if (!dev->overflow_warned) {
 			printk(KERN_WARNING "appletouch: OVERFLOW with data "
 				"length %d, actual length is %d\n",
-				dev->datalen, dev->urb->actual_length);
+				dev->info->datalen, dev->urb->actual_length);
 			dev->overflow_warned = true;
 		}
 	case -ECONNRESET:
@@ -377,7 +415,7 @@ static int atp_status_check(struct urb *urb)
 	}
 
 	/* drop incomplete datasets */
-	if (dev->urb->actual_length != dev->datalen) {
+	if (dev->urb->actual_length != dev->info->datalen) {
 		dprintk("appletouch: incomplete data package"
 			" (first byte: %d, length: %d).\n",
 			dev->data[0], dev->urb->actual_length);
@@ -387,6 +425,25 @@ static int atp_status_check(struct urb *urb)
 	return ATP_URB_STATUS_SUCCESS;
 }
 
+static void atp_detect_size(struct atp *dev)
+{
+	int i;
+
+	/* 17" Powerbooks have extra X sensors */
+	for (i = dev->info->xsensors; i < ATP_XSENSORS; i++) {
+		if (dev->xy_cur[i]) {
+
+			printk(KERN_INFO "appletouch: 17\" model detected.\n");
+
+			input_set_abs_params(dev->input, ABS_X, 0,
+					     (dev->info->xsensors_17 - 1) *
+							dev->info->xfact - 1,
+					     ATP_FUZZ, 0);
+			break;
+		}
+	}
+}
+
 /*
  * USB interrupt callback functions
  */
@@ -407,7 +464,7 @@ static void atp_complete_geyser_1_2(struct urb *urb)
 		goto exit;
 
 	/* reorder the sensors values */
-	if (dev->type == ATP_GEYSER2) {
+	if (dev->info == &geyser2_info) {
 		memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
 
 		/*
@@ -437,8 +494,8 @@ static void atp_complete_geyser_1_2(struct urb *urb)
 				dev->xy_cur[i + 24] = dev->data[5 * i + 44];
 
 			/* Y values */
-			dev->xy_cur[i + 26] = dev->data[5 * i +  1];
-			dev->xy_cur[i + 34] = dev->data[5 * i +  3];
+			dev->xy_cur[ATP_XSENSORS + i] = dev->data[5 * i +  1];
+			dev->xy_cur[ATP_XSENSORS + i + 8] = dev->data[5 * i + 3];
 		}
 	}
 
@@ -453,32 +510,8 @@ static void atp_complete_geyser_1_2(struct urb *urb)
 		memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
 
 		/* Perform size detection, if not done already */
-		if (!dev->size_detect_done) {
-
-			/* 17" Powerbooks have extra X sensors */
-			for (i = (dev->type == ATP_GEYSER2 ? 15 : 16);
-			     i < ATP_XSENSORS; i++) {
-				if (!dev->xy_cur[i])
-					continue;
-
-				printk(KERN_INFO
-					"appletouch: 17\" model detected.\n");
-
-				if (dev->type == ATP_GEYSER2)
-					input_set_abs_params(dev->input, ABS_X,
-							     0,
-							     (20 - 1) *
-							     ATP_XFACT - 1,
-							     ATP_FUZZ, 0);
-				else
-					input_set_abs_params(dev->input, ABS_X,
-							     0,
-							     (26 - 1) *
-							     ATP_XFACT - 1,
-							     ATP_FUZZ, 0);
-				break;
-			}
-
+		if (unlikely(!dev->size_detect_done)) {
+			atp_detect_size(dev);
 			dev->size_detect_done = 1;
 			goto exit;
 		}
@@ -499,10 +532,10 @@ static void atp_complete_geyser_1_2(struct urb *urb)
 	dbg_dump("accumulator", dev->xy_acc);
 
 	x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS,
-			      ATP_XFACT, &x_z, &x_f);
+			      dev->info->xfact, &x_z, &x_f);
 	y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
-			      ATP_YFACT, &y_z, &y_f);
-	key = dev->data[dev->datalen - 1] & ATP_STATUS_BUTTON;
+			      dev->info->yfact, &y_z, &y_f);
+	key = dev->data[dev->info->datalen - 1] & ATP_STATUS_BUTTON;
 
 	if (x && y) {
 		if (dev->x_old != -1) {
@@ -583,7 +616,7 @@ static void atp_complete_geyser_3_4(struct urb *urb)
 	dbg_dump("sample", dev->xy_cur);
 
 	/* Just update the base values (i.e. touchpad in untouched state) */
-	if (dev->data[dev->datalen - 1] & ATP_STATUS_BASE_UPDATE) {
+	if (dev->data[dev->info->datalen - 1] & ATP_STATUS_BASE_UPDATE) {
 
 		dprintk(KERN_DEBUG "appletouch: updated base values\n");
 
@@ -610,10 +643,10 @@ static void atp_complete_geyser_3_4(struct urb *urb)
 	dbg_dump("accumulator", dev->xy_acc);
 
 	x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS,
-			      ATP_XFACT, &x_z, &x_f);
+			      dev->info->xfact, &x_z, &x_f);
 	y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
-			      ATP_YFACT, &y_z, &y_f);
-	key = dev->data[dev->datalen - 1] & ATP_STATUS_BUTTON;
+			      dev->info->yfact, &y_z, &y_f);
+	key = dev->data[dev->info->datalen - 1] & ATP_STATUS_BUTTON;
 
 	if (x && y) {
 		if (dev->x_old != -1) {
@@ -705,7 +738,7 @@ static int atp_handle_geyser(struct atp *dev)
 {
 	struct usb_device *udev = dev->udev;
 
-	if (dev->type != ATP_FOUNTAIN) {
+	if (dev->info != &fountain_info) {
 		/* switch to raw sensor mode */
 		if (atp_geyser_init(udev))
 			return -EIO;
@@ -726,6 +759,7 @@ static int atp_probe(struct usb_interface *iface,
 	struct usb_endpoint_descriptor *endpoint;
 	int int_in_endpointAddr = 0;
 	int i, error = -ENOMEM;
+	const struct atp_info *info = (const struct atp_info *)id->driver_info;
 
 	/* set up the endpoint information */
 	/* use only the first interrupt-in endpoint */
@@ -753,35 +787,22 @@ static int atp_probe(struct usb_interface *iface,
 
 	dev->udev = udev;
 	dev->input = input_dev;
-	dev->type = id->driver_info;
+	dev->info = info;
 	dev->overflow_warned = false;
-	if (dev->type == ATP_FOUNTAIN || dev->type == ATP_GEYSER1)
-		dev->datalen = 81;
-	else
-		dev->datalen = 64;
 
 	dev->urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!dev->urb)
 		goto err_free_devs;
 
-	dev->data = usb_buffer_alloc(dev->udev, dev->datalen, GFP_KERNEL,
+	dev->data = usb_buffer_alloc(dev->udev, dev->info->datalen, GFP_KERNEL,
 				     &dev->urb->transfer_dma);
 	if (!dev->data)
 		goto err_free_urb;
 
-	/* Select the USB complete (callback) function */
-	if (dev->type == ATP_FOUNTAIN ||
-	    dev->type == ATP_GEYSER1 ||
-	    dev->type == ATP_GEYSER2)
-		usb_fill_int_urb(dev->urb, udev,
-				 usb_rcvintpipe(udev, int_in_endpointAddr),
-				 dev->data, dev->datalen,
-				 atp_complete_geyser_1_2, dev, 1);
-	else
-		usb_fill_int_urb(dev->urb, udev,
-				 usb_rcvintpipe(udev, int_in_endpointAddr),
-				 dev->data, dev->datalen,
-				 atp_complete_geyser_3_4, dev, 1);
+	usb_fill_int_urb(dev->urb, udev,
+			 usb_rcvintpipe(udev, int_in_endpointAddr),
+			 dev->data, dev->info->datalen,
+			 dev->info->callback, dev, 1);
 
 	error = atp_handle_geyser(dev);
 	if (error)
@@ -802,35 +823,12 @@ static int atp_probe(struct usb_interface *iface,
 
 	set_bit(EV_ABS, input_dev->evbit);
 
-	if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) {
-		/*
-		 * MacBook have 20 X sensors, 10 Y sensors
-		 */
-		input_set_abs_params(input_dev, ABS_X, 0,
-				     ((20 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
-		input_set_abs_params(input_dev, ABS_Y, 0,
-				     ((10 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
-	} else if (dev->type == ATP_GEYSER2) {
-		/*
-		 * Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected
-		 * later.
-		 */
-		input_set_abs_params(input_dev, ABS_X, 0,
-				     ((15 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
-		input_set_abs_params(input_dev, ABS_Y, 0,
-				     ((9 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
-	} else {
-		/*
-		 * 12" and 15" Powerbooks only have 16 x sensors,
-		 * 17" models are detected later.
-		 */
-		input_set_abs_params(input_dev, ABS_X, 0,
-				     (16 - 1) * ATP_XFACT - 1,
-				     ATP_FUZZ, 0);
-		input_set_abs_params(input_dev, ABS_Y, 0,
-				     (ATP_YSENSORS - 1) * ATP_YFACT - 1,
-				     ATP_FUZZ, 0);
-	}
+	input_set_abs_params(input_dev, ABS_X, 0,
+			     (dev->info->xsensors - 1) * dev->info->xfact - 1,
+			     ATP_FUZZ, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0,
+			     (dev->info->ysensors - 1) * dev->info->yfact - 1,
+			     ATP_FUZZ, 0);
 	input_set_abs_params(input_dev, ABS_PRESSURE, 0, ATP_PRESSURE, 0, 0);
 
 	set_bit(EV_KEY, input_dev->evbit);
@@ -852,7 +850,7 @@ static int atp_probe(struct usb_interface *iface,
 	return 0;
 
  err_free_buffer:
-	usb_buffer_free(dev->udev, dev->datalen,
+	usb_buffer_free(dev->udev, dev->info->datalen,
 			dev->data, dev->urb->transfer_dma);
  err_free_urb:
 	usb_free_urb(dev->urb);
@@ -871,7 +869,7 @@ static void atp_disconnect(struct usb_interface *iface)
 	if (dev) {
 		usb_kill_urb(dev->urb);
 		input_unregister_device(dev->input);
-		usb_buffer_free(dev->udev, dev->datalen,
+		usb_buffer_free(dev->udev, dev->info->datalen,
 				dev->data, dev->urb->transfer_dma);
 		usb_free_urb(dev->urb);
 		kfree(dev);
diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
index 72cf5e33790..0db8d16c5ed 100644
--- a/drivers/input/mouse/gpio_mouse.c
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -173,7 +173,7 @@ static int __devexit gpio_mouse_remove(struct platform_device *pdev)
 /* work with hotplug and coldplug */
 MODULE_ALIAS("platform:gpio_mouse");
 
-struct platform_driver gpio_mouse_device_driver = {
+static struct platform_driver gpio_mouse_device_driver = {
 	.remove		= __devexit_p(gpio_mouse_remove),
 	.driver		= {
 		.name	= "gpio_mouse",
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 88f04bf2ad6..81e6ebf323e 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -48,6 +48,30 @@ module_param(recalib_delta, int, 0644);
 MODULE_PARM_DESC(recalib_delta,
 	"packets containing a delta this large will cause a recalibration.");
 
+static int jumpy_delay = 1000;
+module_param(jumpy_delay, int, 0644);
+MODULE_PARM_DESC(jumpy_delay,
+	"delay (ms) before recal after jumpiness detected");
+
+static int spew_delay = 1000;
+module_param(spew_delay, int, 0644);
+MODULE_PARM_DESC(spew_delay,
+	"delay (ms) before recal after packet spew detected");
+
+static int recal_guard_time = 2000;
+module_param(recal_guard_time, int, 0644);
+MODULE_PARM_DESC(recal_guard_time,
+	"interval (ms) during which recal will be restarted if packet received");
+
+static int post_interrupt_delay = 1000;
+module_param(post_interrupt_delay, int, 0644);
+MODULE_PARM_DESC(post_interrupt_delay,
+	"delay (ms) before recal after recal interrupt detected");
+
+static int autorecal = 1;
+module_param(autorecal, int, 0644);
+MODULE_PARM_DESC(autorecal, "enable recalibration in the driver");
+
 /*
  * When the touchpad gets ultra-sensitive, one can keep their finger 1/2"
  * above the pad and still have it send packets.  This causes a jump cursor
@@ -66,7 +90,7 @@ static void hgpk_jumpy_hack(struct psmouse *psmouse, int x, int y)
 		/* My car gets forty rods to the hogshead and that's the
 		 * way I likes it! */
 		psmouse_queue_work(psmouse, &priv->recalib_wq,
-				msecs_to_jiffies(1000));
+				msecs_to_jiffies(jumpy_delay));
 	}
 }
 
@@ -103,7 +127,7 @@ static void hgpk_spewing_hack(struct psmouse *psmouse,
 			hgpk_dbg(psmouse, "packet spew detected (%d,%d)\n",
 				 priv->x_tally, priv->y_tally);
 			psmouse_queue_work(psmouse, &priv->recalib_wq,
-					   msecs_to_jiffies(1000));
+					   msecs_to_jiffies(spew_delay));
 		}
 		/* reset every 100 packets */
 		priv->count = 0;
@@ -181,7 +205,7 @@ static psmouse_ret_t hgpk_process_byte(struct psmouse *psmouse)
 				 "packet inside calibration window, "
 				 "queueing another recalibration\n");
 			psmouse_queue_work(psmouse, &priv->recalib_wq,
-					msecs_to_jiffies(1000));
+					msecs_to_jiffies(post_interrupt_delay));
 		}
 		priv->recalib_window = 0;
 	}
@@ -231,7 +255,7 @@ static int hgpk_force_recalibrate(struct psmouse *psmouse)
 	 * If someone's finger *was* on the touchpad, it's probably
 	 * miscalibrated.  So, we should schedule another recalibration
 	 */
-	priv->recalib_window = jiffies +  msecs_to_jiffies(2000);
+	priv->recalib_window = jiffies +  msecs_to_jiffies(recal_guard_time);
 
 	return 0;
 }
diff --git a/drivers/input/mouse/hil_ptr.c b/drivers/input/mouse/hil_ptr.c
index e532c48410e..3263ce083bf 100644
--- a/drivers/input/mouse/hil_ptr.c
+++ b/drivers/input/mouse/hil_ptr.c
@@ -46,7 +46,7 @@
 MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
 MODULE_DESCRIPTION(HIL_GENERIC_NAME " driver");
 MODULE_LICENSE("Dual BSD/GPL");
-
+MODULE_ALIAS("serio:ty03pr25id0Fex*");
 
 #define TABLET_SIMULATES_MOUSE	/* allow tablet to be used as mouse */
 #undef  TABLET_AUTOADJUST	/* auto-adjust valid tablet ranges */
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
new file mode 100644
index 00000000000..a0f45c4fc19
--- /dev/null
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -0,0 +1,269 @@
+/*
+ * PXA930 track ball mouse driver
+ *
+ * Copyright (C) 2007 Marvell International Ltd.
+ * 2008-02-28: Yong Yao <yaoyong@marvell.com>
+ *             initial version
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/version.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <mach/pxa930_trkball.h>
+
+/* Trackball Controller Register Definitions */
+#define TBCR		(0x000C)
+#define TBCNTR		(0x0010)
+#define TBSBC		(0x0014)
+
+#define TBCR_TBRST	(1 << 1)
+#define TBCR_TBSB	(1 << 10)
+
+#define TBCR_Y_FLT(n)	(((n) & 0xf) << 6)
+#define TBCR_X_FLT(n)	(((n) & 0xf) << 2)
+
+#define TBCNTR_YM(n)	(((n) >> 24) & 0xff)
+#define TBCNTR_YP(n)	(((n) >> 16) & 0xff)
+#define TBCNTR_XM(n)	(((n) >> 8) & 0xff)
+#define TBCNTR_XP(n)	((n) & 0xff)
+
+#define TBSBC_TBSBC	(0x1)
+
+struct pxa930_trkball {
+	struct pxa930_trkball_platform_data *pdata;
+
+	/* Memory Mapped Register */
+	struct resource *mem;
+	void __iomem *mmio_base;
+
+	struct input_dev *input;
+};
+
+static irqreturn_t pxa930_trkball_interrupt(int irq, void *dev_id)
+{
+	struct pxa930_trkball *trkball = dev_id;
+	struct input_dev *input = trkball->input;
+	int tbcntr, x, y;
+
+	/* According to the spec software must read TBCNTR twice:
+	 * if the read value is the same, the reading is valid
+	 */
+	tbcntr = __raw_readl(trkball->mmio_base + TBCNTR);
+
+	if (tbcntr == __raw_readl(trkball->mmio_base + TBCNTR)) {
+		x = (TBCNTR_XP(tbcntr) - TBCNTR_XM(tbcntr)) / 2;
+		y = (TBCNTR_YP(tbcntr) - TBCNTR_YM(tbcntr)) / 2;
+
+		input_report_rel(input, REL_X, x);
+		input_report_rel(input, REL_Y, y);
+		input_sync(input);
+	}
+
+	__raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC);
+	__raw_writel(0, trkball->mmio_base + TBSBC);
+
+	return IRQ_HANDLED;
+}
+
+/* For TBCR, we need to wait for a while to make sure it has been modified. */
+static int write_tbcr(struct pxa930_trkball *trkball, int v)
+{
+	int i = 100;
+
+	__raw_writel(v, trkball->mmio_base + TBCR);
+
+	while (i--) {
+		if (__raw_readl(trkball->mmio_base + TBCR) == v)
+			break;
+		msleep(1);
+	}
+
+	if (i == 0) {
+		pr_err("%s: timed out writing TBCR(%x)!\n", __func__, v);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static void pxa930_trkball_config(struct pxa930_trkball *trkball)
+{
+	uint32_t tbcr;
+
+	/* According to spec, need to write the filters of x,y to 0xf first! */
+	tbcr = __raw_readl(trkball->mmio_base + TBCR);
+	write_tbcr(trkball, tbcr | TBCR_X_FLT(0xf) | TBCR_Y_FLT(0xf));
+	write_tbcr(trkball, TBCR_X_FLT(trkball->pdata->x_filter) |
+			    TBCR_Y_FLT(trkball->pdata->y_filter));
+
+	/* According to spec, set TBCR_TBRST first, before clearing it! */
+	tbcr = __raw_readl(trkball->mmio_base + TBCR);
+	write_tbcr(trkball, tbcr | TBCR_TBRST);
+	write_tbcr(trkball, tbcr & ~TBCR_TBRST);
+
+	__raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC);
+	__raw_writel(0, trkball->mmio_base + TBSBC);
+
+	pr_debug("%s: final TBCR=%x!\n", __func__,
+		 __raw_readl(trkball->mmio_base + TBCR));
+}
+
+static int pxa930_trkball_open(struct input_dev *dev)
+{
+	struct pxa930_trkball *trkball = input_get_drvdata(dev);
+
+	pxa930_trkball_config(trkball);
+
+	return 0;
+}
+
+static void pxa930_trkball_disable(struct pxa930_trkball *trkball)
+{
+	uint32_t tbcr = __raw_readl(trkball->mmio_base + TBCR);
+
+	/* Held in reset, gate the 32-KHz input clock off */
+	write_tbcr(trkball, tbcr | TBCR_TBRST);
+}
+
+static void pxa930_trkball_close(struct input_dev *dev)
+{
+	struct pxa930_trkball *trkball = input_get_drvdata(dev);
+
+	pxa930_trkball_disable(trkball);
+}
+
+static int __devinit pxa930_trkball_probe(struct platform_device *pdev)
+{
+	struct pxa930_trkball *trkball;
+	struct input_dev *input;
+	struct resource *res;
+	int irq, error;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "failed to get trkball irq\n");
+		return -ENXIO;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "failed to get register memory\n");
+		return -ENXIO;
+	}
+
+	trkball = kzalloc(sizeof(struct pxa930_trkball), GFP_KERNEL);
+	if (!trkball)
+		return -ENOMEM;
+
+	trkball->pdata = pdev->dev.platform_data;
+	if (!trkball->pdata) {
+		dev_err(&pdev->dev, "no platform data defined\n");
+		error = -EINVAL;
+		goto failed;
+	}
+
+	trkball->mmio_base = ioremap_nocache(res->start, resource_size(res));
+	if (!trkball->mmio_base) {
+		dev_err(&pdev->dev, "failed to ioremap registers\n");
+		error = -ENXIO;
+		goto failed;
+	}
+
+	/* held the module in reset, will be enabled in open() */
+	pxa930_trkball_disable(trkball);
+
+	error = request_irq(irq, pxa930_trkball_interrupt, IRQF_DISABLED,
+			    pdev->name, trkball);
+	if (error) {
+		dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
+		goto failed_free_io;
+	}
+
+	platform_set_drvdata(pdev, trkball);
+
+	input = input_allocate_device();
+	if (!input) {
+		dev_err(&pdev->dev, "failed to allocate input device\n");
+		error = -ENOMEM;
+		goto failed_free_irq;
+	}
+
+	input->name = pdev->name;
+	input->id.bustype = BUS_HOST;
+	input->open = pxa930_trkball_open;
+	input->close = pxa930_trkball_close;
+	input->dev.parent = &pdev->dev;
+	input_set_drvdata(input, trkball);
+
+	trkball->input = input;
+
+	input_set_capability(input, EV_REL, REL_X);
+	input_set_capability(input, EV_REL, REL_Y);
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(&pdev->dev, "unable to register input device\n");
+		goto failed_free_input;
+	}
+
+	return 0;
+
+failed_free_input:
+	input_free_device(input);
+failed_free_irq:
+	free_irq(irq, trkball);
+failed_free_io:
+	iounmap(trkball->mmio_base);
+failed:
+	kfree(trkball);
+	return ret;
+}
+
+static int __devexit pxa930_trkball_remove(struct platform_device *pdev)
+{
+	struct pxa930_trkball *trkball = platform_get_drvdata(pdev);
+	int irq = platform_get_irq(pdev, 0);
+
+	input_unregister_device(trkball->input);
+	free_irq(irq, trkball);
+	iounmap(trkball->mmio_base);
+	kfree(trkball);
+
+	return 0;
+}
+
+static struct platform_driver pxa930_trkball_driver = {
+	.driver		= {
+		.name	= "pxa930-trkball",
+	},
+	.probe		= pxa930_trkball_probe,
+	.remove		= __devexit_p(pxa930_trkball_remove),
+};
+
+static int __init pxa930_trkball_init(void)
+{
+	return platform_driver_register(&pxa930_trkball_driver);
+}
+
+static void __exit pxa930_trkball_exit(void)
+{
+	platform_driver_unregister(&pxa930_trkball_driver);
+}
+
+module_init(pxa930_trkball_init);
+module_exit(pxa930_trkball_exit);
+
+MODULE_AUTHOR("Yong Yao <yaoyong@marvell.com>");
+MODULE_DESCRIPTION("PXA930 Trackball Mouse Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index d349c4a5e3e..865fc69e9bc 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -445,12 +445,14 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 
 	input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
 	input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
-	input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
-	input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
-
 	input_report_key(dev, BTN_LEFT, hw.left);
 	input_report_key(dev, BTN_RIGHT, hw.right);
 
+	if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
+		input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
+		input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
+	}
+
 	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
 		input_report_key(dev, BTN_MIDDLE, hw.middle);
 
@@ -543,12 +545,14 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	set_bit(EV_KEY, dev->evbit);
 	set_bit(BTN_TOUCH, dev->keybit);
 	set_bit(BTN_TOOL_FINGER, dev->keybit);
-	set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
-	set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
-
 	set_bit(BTN_LEFT, dev->keybit);
 	set_bit(BTN_RIGHT, dev->keybit);
 
+	if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
+		set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+		set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
+	}
+
 	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
 		set_bit(BTN_MIDDLE, dev->keybit);