Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 951 insertions, 0 deletions

diff --git a/drivers/usb/input/wacom.c b/drivers/usb/input/wacom.c
new file mode 100644
index 00000000000..fec04dda088
--- /dev/null
+++ b/drivers/usb/input/wacom.c
@@ -0,0 +1,951 @@
+/*
+ *  USB Wacom Graphire and Wacom Intuos tablet support
+ *
+ *  Copyright (c) 2000-2004 Vojtech Pavlik	<vojtech@ucw.cz>
+ *  Copyright (c) 2000 Andreas Bach Aaen	<abach@stofanet.dk>
+ *  Copyright (c) 2000 Clifford Wolf		<clifford@clifford.at>
+ *  Copyright (c) 2000 Sam Mosel		<sam.mosel@computer.org>
+ *  Copyright (c) 2000 James E. Blair		<corvus@gnu.org>
+ *  Copyright (c) 2000 Daniel Egger		<egger@suse.de>
+ *  Copyright (c) 2001 Frederic Lepied		<flepied@mandrakesoft.com>
+ *  Copyright (c) 2004 Panagiotis Issaris	<panagiotis.issaris@mech.kuleuven.ac.be>
+ *  Copyright (c) 2002-2004 Ping Cheng		<pingc@wacom.com>
+ *
+ *  ChangeLog:
+ *      v0.1 (vp)  - Initial release
+ *      v0.2 (aba) - Support for all buttons / combinations
+ *      v0.3 (vp)  - Support for Intuos added
+ *	v0.4 (sm)  - Support for more Intuos models, menustrip
+ *			relative mode, proximity.
+ *	v0.5 (vp)  - Big cleanup, nifty features removed,
+ * 			they belong in userspace
+ *	v1.8 (vp)  - Submit URB only when operating, moved to CVS,
+ *			use input_report_key instead of report_btn and
+ *			other cleanups
+ *	v1.11 (vp) - Add URB ->dev setting for new kernels
+ *	v1.11 (jb) - Add support for the 4D Mouse & Lens
+ *	v1.12 (de) - Add support for two more inking pen IDs
+ *	v1.14 (vp) - Use new USB device id probing scheme.
+ *		     Fix Wacom Graphire mouse wheel
+ *	v1.18 (vp) - Fix mouse wheel direction
+ *		     Make mouse relative
+ *      v1.20 (fl) - Report tool id for Intuos devices
+ *                 - Multi tools support
+ *                 - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
+ *                 - Add PL models support
+ *		   - Fix Wacom Graphire mouse wheel again
+ *	v1.21 (vp) - Removed protocol descriptions
+ *		   - Added MISC_SERIAL for tool serial numbers
+ *	      (gb) - Identify version on module load.
+ *    v1.21.1 (fl) - added Graphire2 support
+ *    v1.21.2 (fl) - added Intuos2 support
+ *                 - added all the PL ids
+ *    v1.21.3 (fl) - added another eraser id from Neil Okamoto
+ *                 - added smooth filter for Graphire from Peri Hankey
+ *                 - added PenPartner support from Olaf van Es
+ *                 - new tool ids from Ole Martin Bjoerndalen
+ *	v1.29 (pc) - Add support for more tablets
+ *		   - Fix pressure reporting
+ *	v1.30 (vp) - Merge 2.4 and 2.5 drivers
+ *		   - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
+ *		   - Cleanups here and there
+ *    v1.30.1 (pi) - Added Graphire3 support
+ *	v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
+ */
+
+/*
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.40"
+#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
+#define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_WACOM	0x056a
+
+struct wacom_features {
+	char *name;
+	int pktlen;
+	int x_max;
+	int y_max;
+	int pressure_max;
+	int distance_max;
+	int type;
+	usb_complete_t irq;
+};
+
+struct wacom {
+	signed char *data;
+	dma_addr_t data_dma;
+	struct input_dev dev;
+	struct usb_device *usbdev;
+	struct urb *irq;
+	struct wacom_features *features;
+	int tool[2];
+	int open;
+	__u32 serial[2];
+	char phys[32];
+};
+
+#define USB_REQ_SET_REPORT	0x09
+static int usb_set_report(struct usb_interface *intf, unsigned char type,
+				unsigned char id, void *buf, int size)
+{
+	return usb_control_msg(interface_to_usbdev(intf),
+		usb_sndctrlpipe(interface_to_usbdev(intf), 0),
+                USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+                (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
+		buf, size, 1000);
+}
+
+static void wacom_pl_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	int prox, pressure;
+	int retval;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
+
+	if (data[0] != 2) {
+		dbg("wacom_pl_irq: received unknown report #%d", data[0]);
+		goto exit;
+	}
+
+	prox = data[1] & 0x40;
+
+	input_regs(dev, regs);
+	
+	if (prox) {
+
+		pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
+		if (wacom->features->pressure_max > 255)
+			pressure = (pressure << 1) | ((data[4] >> 6) & 1);
+		pressure += (wacom->features->pressure_max + 1) / 2;
+
+		/*
+		 * if going from out of proximity into proximity select between the eraser
+		 * and the pen based on the state of the stylus2 button, choose eraser if
+		 * pressed else choose pen. if not a proximity change from out to in, send
+		 * an out of proximity for previous tool then a in for new tool.
+		 */
+		if (!wacom->tool[0]) {
+			/* Going into proximity select tool */
+			wacom->tool[1] = (data[4] & 0x20)? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+		}
+		else {
+			/* was entered with stylus2 pressed */
+			if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20) ) {
+				/* report out proximity for previous tool */
+				input_report_key(dev, wacom->tool[1], 0);
+				input_sync(dev);
+				wacom->tool[1] = BTN_TOOL_PEN;
+				goto exit;
+			}
+		}
+		if (wacom->tool[1] != BTN_TOOL_RUBBER) {
+			/* Unknown tool selected default to pen tool */
+			wacom->tool[1] = BTN_TOOL_PEN;
+		}
+		input_report_key(dev, wacom->tool[1], prox); /* report in proximity for tool */
+		input_report_abs(dev, ABS_X, data[3] | ((__u32)data[2] << 7) | ((__u32)(data[1] & 0x03) << 14));
+		input_report_abs(dev, ABS_Y, data[6] | ((__u32)data[5] << 7) | ((__u32)(data[4] & 0x03) << 14));
+		input_report_abs(dev, ABS_PRESSURE, pressure);
+
+		input_report_key(dev, BTN_TOUCH, data[4] & 0x08);
+		input_report_key(dev, BTN_STYLUS, data[4] & 0x10);
+		/* Only allow the stylus2 button to be reported for the pen tool. */
+		input_report_key(dev, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
+	}
+	else {
+		/* report proximity-out of a (valid) tool */
+		if (wacom->tool[1] != BTN_TOOL_RUBBER) {
+			/* Unknown tool selected default to pen tool */
+			wacom->tool[1] = BTN_TOOL_PEN;
+		}
+		input_report_key(dev, wacom->tool[1], prox);
+	}
+
+	wacom->tool[0] = prox; /* Save proximity state */
+	input_sync(dev);
+
+exit:
+	retval = usb_submit_urb (urb, GFP_ATOMIC);
+	if (retval)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, retval);
+}
+
+static void wacom_ptu_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	int retval;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
+
+	if (data[0] != 2)
+	{
+		printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
+		goto exit;
+	}
+
+	input_regs(dev, regs);
+	if (data[1] & 0x04)
+	{
+		input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x20);
+		input_report_key(dev, BTN_TOUCH, data[1] & 0x08);
+	}
+	else
+	{
+		input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x20);
+		input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
+	}
+	input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[2]));
+	input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[4]));
+	input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
+	input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
+	input_report_key(dev, BTN_STYLUS2, data[1] & 0x10);
+
+	input_sync(dev);
+
+exit:
+	retval = usb_submit_urb (urb, GFP_ATOMIC);
+	if (retval)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, retval);
+}
+
+static void wacom_penpartner_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	int retval;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
+
+	if (data[0] != 2) {
+		printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
+		goto exit;
+	}
+
+	input_regs(dev, regs);
+	input_report_key(dev, BTN_TOOL_PEN, 1);
+	input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[1]));
+	input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[3]));
+	input_report_abs(dev, ABS_PRESSURE, (signed char)data[6] + 127);
+	input_report_key(dev, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
+	input_report_key(dev, BTN_STYLUS, (data[5] & 0x40));
+	input_sync(dev);
+
+exit:
+	retval = usb_submit_urb (urb, GFP_ATOMIC);
+	if (retval)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, retval);
+}
+
+static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	int x, y;
+	int retval;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
+
+	if (data[0] != 2) {
+		dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
+		goto exit;
+	}
+
+	x = le16_to_cpu(*(__le16 *) &data[2]);
+	y = le16_to_cpu(*(__le16 *) &data[4]);
+
+	input_regs(dev, regs);
+
+	switch ((data[1] >> 5) & 3) {
+
+		case 0:	/* Pen */
+			input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x80);
+			break;
+
+		case 1: /* Rubber */
+			input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x80);
+			break;
+
+		case 2: /* Mouse with wheel */
+			input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
+			input_report_rel(dev, REL_WHEEL, (signed char) data[6]);
+			/* fall through */
+
+                case 3: /* Mouse without wheel */
+			input_report_key(dev, BTN_TOOL_MOUSE, data[7] > 24);
+			input_report_key(dev, BTN_LEFT, data[1] & 0x01);
+			input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
+			input_report_abs(dev, ABS_DISTANCE, data[7]);
+
+			input_report_abs(dev, ABS_X, x);
+			input_report_abs(dev, ABS_Y, y);
+
+			input_sync(dev);
+			goto exit;
+	}
+
+	if (data[1] & 0x80) {
+		input_report_abs(dev, ABS_X, x);
+		input_report_abs(dev, ABS_Y, y);
+	}
+
+	input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
+	input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
+	input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
+	input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);
+
+	input_sync(dev);
+
+exit:
+	retval = usb_submit_urb (urb, GFP_ATOMIC);
+	if (retval)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, retval);
+}
+
+static int wacom_intuos_inout(struct urb *urb)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	int idx;
+
+	/* tool number */
+	idx = data[1] & 0x01;
+
+	/* Enter report */
+	if ((data[1] & 0xfc) == 0xc0)
+	{
+		/* serial number of the tool */
+		wacom->serial[idx] = ((__u32)(data[3] & 0x0f) << 28) +
+			((__u32)data[4] << 20) + ((__u32)data[5] << 12) +
+			((__u32)data[6] << 4) + (data[7] >> 4);
+
+		switch (((__u32)data[2] << 4) | (data[3] >> 4)) {
+			case 0x812: /* Inking pen */
+			case 0x801: /* Intuos3 Inking pen */
+			case 0x012:
+				wacom->tool[idx] = BTN_TOOL_PENCIL;
+				break;
+			case 0x822: /* Pen */
+			case 0x842:
+			case 0x852:
+			case 0x823: /* Intuos3 Grip Pen */
+			case 0x813: /* Intuos3 Classic Pen */
+			case 0x885: /* Intuos3 Marker Pen */
+			case 0x022:
+				wacom->tool[idx] = BTN_TOOL_PEN;
+				break;
+			case 0x832: /* Stroke pen */
+			case 0x032:
+				wacom->tool[idx] = BTN_TOOL_BRUSH;
+				break;
+			case 0x007: /* Mouse 4D and 2D */
+		        case 0x09c:
+			case 0x094:
+			case 0x017: /* Intuos3 2D Mouse */
+				wacom->tool[idx] = BTN_TOOL_MOUSE;
+				break;
+			case 0x096: /* Lens cursor */
+			case 0x097: /* Intuos3 Lens cursor */
+				wacom->tool[idx] = BTN_TOOL_LENS;
+				break;
+			case 0x82a: /* Eraser */
+			case 0x85a:
+		        case 0x91a:
+			case 0xd1a:
+			case 0x0fa:
+			case 0x82b: /* Intuos3 Grip Pen Eraser */
+			case 0x81b: /* Intuos3 Classic Pen Eraser */
+			case 0x91b: /* Intuos3 Airbrush Eraser */
+				wacom->tool[idx] = BTN_TOOL_RUBBER;
+				break;
+			case 0xd12:
+			case 0x912:
+			case 0x112:
+			case 0x913: /* Intuos3 Airbrush */
+				wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
+				break;	/* Airbrush */
+			default: /* Unknown tool */
+				wacom->tool[idx] = BTN_TOOL_PEN;
+		}
+		input_report_key(dev, wacom->tool[idx], 1);
+		input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+		input_sync(dev);
+		return 1;
+	}
+
+	/* Exit report */
+	if ((data[1] & 0xfe) == 0x80) {
+		input_report_key(dev, wacom->tool[idx], 0);
+		input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+		input_sync(dev);
+		return 1;
+	}
+
+	return 0;
+}
+
+static void wacom_intuos_general(struct urb *urb)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	unsigned int t;
+
+	/* general pen packet */
+	if ((data[1] & 0xb8) == 0xa0)
+	{
+		t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3);
+		input_report_abs(dev, ABS_PRESSURE, t);
+		input_report_abs(dev, ABS_TILT_X,
+				((data[7] << 1) & 0x7e) | (data[8] >> 7));
+		input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
+		input_report_key(dev, BTN_STYLUS, data[1] & 2);
+		input_report_key(dev, BTN_STYLUS2, data[1] & 4);
+		input_report_key(dev, BTN_TOUCH, t > 10);
+	}
+
+	/* airbrush second packet */
+	if ((data[1] & 0xbc) == 0xb4)
+	{
+		input_report_abs(dev, ABS_WHEEL,
+				((__u32)data[6] << 2) | ((data[7] >> 6) & 3));
+		input_report_abs(dev, ABS_TILT_X,
+				((data[7] << 1) & 0x7e) | (data[8] >> 7));
+		input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
+	}
+	return;
+}
+
+static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	unsigned int t;
+	int idx;
+	int retval;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
+
+	if (data[0] != 2 && data[0] != 5 && data[0] != 6) {
+		dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
+		goto exit;
+	}
+
+	input_regs(dev, regs);
+
+	/* tool number */
+	idx = data[1] & 0x01;
+
+	/* process in/out prox events */
+	if (wacom_intuos_inout(urb)) goto exit;
+
+	input_report_abs(dev, ABS_X, be16_to_cpu(*(__be16 *) &data[2]));
+	input_report_abs(dev, ABS_Y, be16_to_cpu(*(__be16 *) &data[4]));
+	input_report_abs(dev, ABS_DISTANCE, data[9]);
+
+	/* process general packets */
+	wacom_intuos_general(urb);
+	
+	if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) {		/* 4D mouse or Lens cursor packets */
+
+		if (data[1] & 0x02) {						/* Rotation packet */
+
+			t = ((__u32)data[6] << 3) | ((data[7] >> 5) & 7);
+			input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ? ((t - 1) / 2) : -t / 2);
+
+		} else {
+
+	 		if ((data[1] & 0x10) == 0) {				/* 4D mouse packets */
+
+				input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
+				input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
+				input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
+
+				input_report_key(dev, BTN_SIDE,   data[8] & 0x20);
+				input_report_key(dev, BTN_EXTRA,  data[8] & 0x10);
+				t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3);
+				input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
+
+			} else {
+				if (wacom->tool[idx] == BTN_TOOL_MOUSE) {	/* 2D mouse packets */	
+					input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
+					input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
+					input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
+					input_report_rel(dev, REL_WHEEL, 
+					    (-(__u32)(data[8] & 0x01) + (__u32)((data[8] & 0x02) >> 1)));
+				}
+				else {     /* Lens cursor packets */
+					input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
+					input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
+					input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
+					input_report_key(dev, BTN_SIDE,   data[8] & 0x10);
+					input_report_key(dev, BTN_EXTRA,  data[8] & 0x08);
+				}
+			}
+		}
+	}
+	
+	input_report_key(dev, wacom->tool[idx], 1);
+	input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+	input_sync(dev);
+
+exit:
+	retval = usb_submit_urb (urb, GFP_ATOMIC);
+	if (retval)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, retval);
+}
+
+static void wacom_intuos3_irq(struct urb *urb, struct pt_regs *regs)
+{
+	struct wacom *wacom = urb->context;
+	unsigned char *data = wacom->data;
+	struct input_dev *dev = &wacom->dev;
+	unsigned int t;
+	int idx, retval;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
+
+	/* check for valid report */
+	if (data[0] != 2 && data[0] != 5 && data[0] != 12)
+	{
+		printk(KERN_INFO "wacom_intuos3_irq: received unknown report #%d\n", data[0]);
+		goto exit;
+	}
+
+	input_regs(dev, regs);
+
+	/* tool index is always 0 here since there is no dual input tool */
+	idx = data[1] & 0x01;
+
+	/* pad packets. Works as a second tool and is always in prox */
+	if (data[0] == 12)
+	{
+		/* initiate the pad as a device */
+		if (wacom->tool[1] != BTN_TOOL_FINGER)
+		{
+			wacom->tool[1] = BTN_TOOL_FINGER;
+			input_report_key(dev, wacom->tool[1], 1);
+		}
+		input_report_key(dev, BTN_0, (data[5] & 0x01));
+		input_report_key(dev, BTN_1, (data[5] & 0x02));
+		input_report_key(dev, BTN_2, (data[5] & 0x04));
+		input_report_key(dev, BTN_3, (data[5] & 0x08));
+		input_report_key(dev, BTN_4, (data[6] & 0x01));
+		input_report_key(dev, BTN_5, (data[6] & 0x02));
+		input_report_key(dev, BTN_6, (data[6] & 0x04));
+		input_report_key(dev, BTN_7, (data[6] & 0x08));
+		input_report_abs(dev, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
+		input_report_abs(dev, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
+		input_event(dev, EV_MSC, MSC_SERIAL, 0xffffffff);
+		input_sync(dev);
+		goto exit;
+	}
+
+	/* process in/out prox events */
+	if (wacom_intuos_inout(urb)) goto exit;
+
+	input_report_abs(dev, ABS_X, ((__u32)data[2] << 9) | ((__u32)data[3] << 1) | ((data[9] >> 1) & 1));
+	input_report_abs(dev, ABS_Y, ((__u32)data[4] << 9) | ((__u32)data[5] << 1) | (data[9] & 1));
+	input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
+
+	/* process general packets */
+	wacom_intuos_general(urb);
+
+	if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0)
+	{
+		/* Marker pen rotation packet. Reported as wheel due to valuator limitation */
+		if (data[1] & 0x02)
+		{
+			t = ((__u32)data[6] << 3) | ((data[7] >> 5) & 7);
+			t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
+				((t-1) / 2 + 450)) : (450 - t / 2) ;
+			input_report_abs(dev, ABS_WHEEL, t);
+		}
+
+		/* 2D mouse packets */
+		if (wacom->tool[idx] == BTN_TOOL_MOUSE)
+		{
+			input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
+			input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
+			input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
+			input_report_key(dev, BTN_SIDE,   data[8] & 0x40);
+			input_report_key(dev, BTN_EXTRA,  data[8] & 0x20);
+			/* mouse wheel is positive when rolled backwards */
+			input_report_rel(dev, REL_WHEEL,  ((__u32)((data[8] & 0x02) >> 1)
+					 - (__u32)(data[8] & 0x01)));
+		}
+	}
+
+	input_report_key(dev, wacom->tool[idx], 1);
+	input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+	input_sync(dev);
+
+exit:
+	retval = usb_submit_urb (urb, GFP_ATOMIC);
+	if (retval)
+		err ("%s - usb_submit_urb failed with result %d",
+		    __FUNCTION__, retval);
+}
+
+static struct wacom_features wacom_features[] = {
+	{ "Wacom Penpartner",    7,   5040,  3780,  255, 32, 0, wacom_penpartner_irq },
+        { "Wacom Graphire",      8,  10206,  7422,  511, 32, 1, wacom_graphire_irq },
+	{ "Wacom Graphire2 4x5", 8,  10206,  7422,  511, 32, 1, wacom_graphire_irq },
+ 	{ "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 32, 1, wacom_graphire_irq },
+	{ "Wacom Graphire3",     8,  10208,  7424,  511, 32, 1, wacom_graphire_irq },
+	{ "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 32, 1, wacom_graphire_irq },
+  	{ "Wacom Intuos 4x5",   10,  12700, 10600, 1023, 15, 2, wacom_intuos_irq },
+ 	{ "Wacom Intuos 6x8",   10,  20320, 16240, 1023, 15, 2, wacom_intuos_irq },
+ 	{ "Wacom Intuos 9x12",  10,  30480, 24060, 1023, 15, 2, wacom_intuos_irq },
+ 	{ "Wacom Intuos 12x12", 10,  30480, 31680, 1023, 15, 2, wacom_intuos_irq },
+ 	{ "Wacom Intuos 12x18", 10,  45720, 31680, 1023, 15, 2, wacom_intuos_irq },
+ 	{ "Wacom PL400",         8,   5408,  4056,  255, 32, 3, wacom_pl_irq },
+ 	{ "Wacom PL500",         8,   6144,  4608,  255, 32, 3, wacom_pl_irq },
+ 	{ "Wacom PL600",         8,   6126,  4604,  255, 32, 3, wacom_pl_irq },
+ 	{ "Wacom PL600SX",       8,   6260,  5016,  255, 32, 3, wacom_pl_irq },
+ 	{ "Wacom PL550",         8,   6144,  4608,  511, 32, 3, wacom_pl_irq },
+ 	{ "Wacom PL800",         8,   7220,  5780,  511, 32, 3, wacom_pl_irq },
+	{ "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 15, 2, wacom_intuos_irq },
+	{ "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, 2, wacom_intuos_irq },
+	{ "Wacom Intuos2 9x12",  10, 30480, 24060, 1023, 15, 2, wacom_intuos_irq },
+	{ "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, 2, wacom_intuos_irq },
+	{ "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, 2, wacom_intuos_irq },
+	{ "Wacom Volito",        8,   5104,  3712,  511, 32, 1, wacom_graphire_irq },
+	{ "Wacom Cintiq Partner",8,  20480, 15360,  511, 32, 3, wacom_ptu_irq },
+	{ "Wacom Intuos3 4x5",   10, 25400, 20320, 1023, 15, 4, wacom_intuos3_irq },
+	{ "Wacom Intuos3 6x8",   10, 40640, 30480, 1023, 15, 4, wacom_intuos3_irq },
+	{ "Wacom Intuos3 9x12",  10, 60960, 45720, 1023, 15, 4, wacom_intuos3_irq },
+	{ "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, 2, wacom_intuos_irq },
+ 	{ }
+};
+
+static struct usb_device_id wacom_ids[] = {
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) },
+	{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(usb, wacom_ids);
+
+static int wacom_open(struct input_dev *dev)
+{
+	struct wacom *wacom = dev->private;
+
+	if (wacom->open++)
+		return 0;
+
+	wacom->irq->dev = wacom->usbdev;
+	if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
+		wacom->open--;
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static void wacom_close(struct input_dev *dev)
+{
+	struct wacom *wacom = dev->private;
+
+	if (!--wacom->open)
+		usb_kill_urb(wacom->irq);
+}
+
+static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	struct usb_device *dev = interface_to_usbdev(intf);
+	struct usb_endpoint_descriptor *endpoint;
+	char rep_data[2] = {0x02, 0x02};
+	struct wacom *wacom;
+	char path[64];
+
+	if (!(wacom = kmalloc(sizeof(struct wacom), GFP_KERNEL)))
+		return -ENOMEM;
+	memset(wacom, 0, sizeof(struct wacom));
+
+	wacom->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma);
+	if (!wacom->data) {
+		kfree(wacom);
+		return -ENOMEM;
+	}
+
+	wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
+	if (!wacom->irq) {
+		usb_buffer_free(dev, 10, wacom->data, wacom->data_dma);
+		kfree(wacom);
+		return -ENOMEM;
+	}
+
+	wacom->features = wacom_features + (id - wacom_ids);
+
+	wacom->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS);
+	wacom->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
+	wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS);
+
+	switch (wacom->features->type) {
+		case 1:
+			wacom->dev.evbit[0] |= BIT(EV_REL);
+			wacom->dev.relbit[0] |= BIT(REL_WHEEL);
+			wacom->dev.absbit[0] |= BIT(ABS_DISTANCE);
+			wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
+ 			wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2);
+			break;
+
+		case 4: /* new functions for Intuos3 */
+			wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);
+			wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7);
+			wacom->dev.absbit[0] |= BIT(ABS_RX) | BIT(ABS_RY);
+			/* fall through */
+
+		case 2:
+			wacom->dev.evbit[0] |= BIT(EV_MSC) | BIT(EV_REL);
+			wacom->dev.mscbit[0] |= BIT(MSC_SERIAL);
+			wacom->dev.relbit[0] |= BIT(REL_WHEEL);
+			wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA);
+ 			wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE)	| BIT(BTN_TOOL_BRUSH)
+							  | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2);
+			wacom->dev.absbit[0] |= BIT(ABS_DISTANCE) | BIT(ABS_WHEEL) | BIT(ABS_TILT_X) | BIT(ABS_TILT_Y) | BIT(ABS_RZ) | BIT(ABS_THROTTLE);
+			break;
+
+		case 3:
+ 			wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER);
+			break;
+	}
+
+	wacom->dev.absmax[ABS_X] = wacom->features->x_max;
+	wacom->dev.absmax[ABS_Y] = wacom->features->y_max;
+	wacom->dev.absmax[ABS_PRESSURE] = wacom->features->pressure_max;
+	wacom->dev.absmax[ABS_DISTANCE] = wacom->features->distance_max;
+	wacom->dev.absmax[ABS_TILT_X] = 127;
+	wacom->dev.absmax[ABS_TILT_Y] = 127;
+	wacom->dev.absmax[ABS_WHEEL] = 1023;
+
+	wacom->dev.absmax[ABS_RX] = 4097;
+	wacom->dev.absmax[ABS_RY] = 4097;
+	wacom->dev.absmin[ABS_RZ] = -900;
+	wacom->dev.absmax[ABS_RZ] = 899;
+	wacom->dev.absmin[ABS_THROTTLE] = -1023;
+	wacom->dev.absmax[ABS_THROTTLE] = 1023;
+
+	wacom->dev.absfuzz[ABS_X] = 4;
+	wacom->dev.absfuzz[ABS_Y] = 4;
+
+	wacom->dev.private = wacom;
+	wacom->dev.open = wacom_open;
+	wacom->dev.close = wacom_close;
+
+	usb_make_path(dev, path, 64);
+	sprintf(wacom->phys, "%s/input0", path);
+
+	wacom->dev.name = wacom->features->name;
+	wacom->dev.phys = wacom->phys;
+	wacom->dev.id.bustype = BUS_USB;
+	wacom->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor);
+	wacom->dev.id.product = le16_to_cpu(dev->descriptor.idProduct);
+	wacom->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice);
+	wacom->dev.dev = &intf->dev;
+	wacom->usbdev = dev;
+
+	endpoint = &intf->cur_altsetting->endpoint[0].desc;
+
+	if (wacom->features->pktlen > 10)
+		BUG();
+
+	usb_fill_int_urb(wacom->irq, dev,
+			 usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+			 wacom->data, wacom->features->pktlen,
+			 wacom->features->irq, wacom, endpoint->bInterval);
+	wacom->irq->transfer_dma = wacom->data_dma;
+	wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	input_register_device(&wacom->dev);
+
+	/* ask the tablet to report tablet data */
+	usb_set_report(intf, 3, 2, rep_data, 2);
+	/* repeat once (not sure why the first call often fails) */
+	usb_set_report(intf, 3, 2, rep_data, 2);
+
+	printk(KERN_INFO "input: %s on %s\n", wacom->features->name, path);
+
+	usb_set_intfdata(intf, wacom);
+
+	return 0;
+}
+
+static void wacom_disconnect(struct usb_interface *intf)
+{
+	struct wacom *wacom = usb_get_intfdata (intf);
+
+	usb_set_intfdata(intf, NULL);
+	if (wacom) {
+		usb_kill_urb(wacom->irq);
+		input_unregister_device(&wacom->dev);
+		usb_free_urb(wacom->irq);
+		usb_buffer_free(interface_to_usbdev(intf), 10, wacom->data, wacom->data_dma);
+		kfree(wacom);
+	}
+}
+
+static struct usb_driver wacom_driver = {
+	.owner =	THIS_MODULE,
+	.name =		"wacom",
+	.probe =	wacom_probe,
+	.disconnect =	wacom_disconnect,
+	.id_table =	wacom_ids,
+};
+
+static int __init wacom_init(void)
+{
+	int result = usb_register(&wacom_driver);
+	if (result == 0)
+		info(DRIVER_VERSION ":" DRIVER_DESC);
+	return result;
+}
+
+static void __exit wacom_exit(void)
+{
+	usb_deregister(&wacom_driver);
+}
+
+module_init(wacom_init);
+module_exit(wacom_exit);