Input: remove old USB touchscreen drivers

obj-$(CONFIG_USB_KBTAB)		+= kbtab.o

obj-$(CONFIG_USB_KEYSPAN_REMOTE)	+= keyspan_remote.o

obj-$(CONFIG_USB_MOUSE)		+= usbmouse.o

obj-$(CONFIG_USB_MTOUCH)	+= mtouchusb.o

obj-$(CONFIG_USB_ITMTOUCH)	+= itmtouch.o

obj-$(CONFIG_USB_EGALAX)	+= touchkitusb.o

obj-$(CONFIG_USB_TOUCHSCREEN)	+= usbtouchscreen.o

obj-$(CONFIG_USB_POWERMATE)	+= powermate.o

obj-$(CONFIG_USB_WACOM)		+= wacom.o

/******************************************************************************

 * itmtouch.c  --  Driver for ITM touchscreen panel

 *

 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 * Based upon original work by Chris Collins <xfire-itmtouch@xware.cx>.

 *

 * Kudos to ITM for providing me with the datasheet for the panel,

 * even though it was a day later than I had finished writing this

 * driver.

 *

 * It has meant that I've been able to correct my interpretation of the

 * protocol packets however.

 *

 * CC -- 2003/9/29

 *

 * History

 * 1.0 & 1.1  2003 (CC) vojtech@suse.cz

 *   Original version for 2.4.x kernels

 *

 * 1.2  02/03/2005 (HCE) hc@mivu.no

 *   Complete rewrite to support Linux 2.6.10, thanks to mtouchusb.c for hints.

 *   Unfortunately no calibration support at this time.

 *

 * 1.2.1  09/03/2005 (HCE) hc@mivu.no

 *   Code cleanup and adjusting syntax to start matching kernel standards

 * 

 * 1.2.2  10/05/2006 (MJA) massad@gmail.com

 *   Flag for detecting if the screen was being touch was incorrectly 

 *   inverted, so no touch events were being detected. 	

 *   

 *****************************************************************************/

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/usb/input.h>

/* only an 8 byte buffer necessary for a single packet */

#define ITM_BUFSIZE			8

#define PATH_SIZE			64

#define USB_VENDOR_ID_ITMINC		0x0403

#define USB_PRODUCT_ID_TOUCHPANEL	0xf9e9

#define DRIVER_AUTHOR "Hans-Christian Egtvedt <hc@mivu.no>"

#define DRIVER_VERSION "v1.2.2"

#define DRIVER_DESC "USB ITM Inc Touch Panel Driver"

#define DRIVER_LICENSE "GPL"

MODULE_AUTHOR( DRIVER_AUTHOR );

MODULE_DESCRIPTION( DRIVER_DESC );

MODULE_LICENSE( DRIVER_LICENSE );

struct itmtouch_dev {

	struct usb_device	*usbdev; /* usb device */

	struct input_dev	*inputdev; /* input device */

	struct urb		*readurb; /* urb */

	char			rbuf[ITM_BUFSIZE]; /* data */

	int			users;

	char name[128];

	char phys[64];

};

static struct usb_device_id itmtouch_ids [] = {

	{ USB_DEVICE(USB_VENDOR_ID_ITMINC, USB_PRODUCT_ID_TOUCHPANEL) },

	{ }

};

static void itmtouch_irq(struct urb *urb)

{

	struct itmtouch_dev *itmtouch = urb->context;

	unsigned char *data = urb->transfer_buffer;

	struct input_dev *dev = itmtouch->inputdev;

	int retval;

	switch (urb->status) {

	case 0:

		/* success */

		break;

	case -ETIME:

		/* this urb is timing out */

		dbg("%s - urb timed out - was the device unplugged?",

		    __FUNCTION__);

		return;

	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 pressure has been released, then don't report X/Y */

	if (!(data[7] & 0x20)) {

		input_report_abs(dev, ABS_X, (data[0] & 0x1F) << 7 | (data[3] & 0x7F));

		input_report_abs(dev, ABS_Y, (data[1] & 0x1F) << 7 | (data[4] & 0x7F));

	}

	input_report_abs(dev, ABS_PRESSURE, (data[2] & 1) << 7 | (data[5] & 0x7F));

	input_report_key(dev, BTN_TOUCH, ~data[7] & 0x20);

	input_sync(dev);

exit:

	retval = usb_submit_urb (urb, GFP_ATOMIC);

	if (retval)

		printk(KERN_ERR "%s - usb_submit_urb failed with result: %d",

				__FUNCTION__, retval);

}

static int itmtouch_open(struct input_dev *input)

{

	struct itmtouch_dev *itmtouch = input->private;

	itmtouch->readurb->dev = itmtouch->usbdev;

	if (usb_submit_urb(itmtouch->readurb, GFP_KERNEL))

		return -EIO;

	return 0;

}

static void itmtouch_close(struct input_dev *input)

{

	struct itmtouch_dev *itmtouch = input->private;

	usb_kill_urb(itmtouch->readurb);

}

static int itmtouch_probe(struct usb_interface *intf, const struct usb_device_id *id)

{

	struct itmtouch_dev *itmtouch;

	struct input_dev *input_dev;

	struct usb_host_interface *interface;

	struct usb_endpoint_descriptor *endpoint;

	struct usb_device *udev = interface_to_usbdev(intf);

	unsigned int pipe;

	unsigned int maxp;

	interface = intf->cur_altsetting;

	endpoint = &interface->endpoint[0].desc;

	itmtouch = kzalloc(sizeof(struct itmtouch_dev), GFP_KERNEL);

	input_dev = input_allocate_device();

	if (!itmtouch || !input_dev) {

		err("%s - Out of memory.", __FUNCTION__);

		goto fail;

	}

	itmtouch->usbdev = udev;

	itmtouch->inputdev = input_dev;

	if (udev->manufacturer)

		strlcpy(itmtouch->name, udev->manufacturer, sizeof(itmtouch->name));

	if (udev->product) {

		if (udev->manufacturer)

			strlcat(itmtouch->name, " ", sizeof(itmtouch->name));

		strlcat(itmtouch->name, udev->product, sizeof(itmtouch->name));

	}

	if (!strlen(itmtouch->name))

		sprintf(itmtouch->name, "USB ITM touchscreen");

	usb_make_path(udev, itmtouch->phys, sizeof(itmtouch->phys));

	strlcpy(itmtouch->phys, "/input0", sizeof(itmtouch->phys));

	input_dev->name = itmtouch->name;

	input_dev->phys = itmtouch->phys;

	usb_to_input_id(udev, &input_dev->id);

	input_dev->cdev.dev = &intf->dev;

	input_dev->private = itmtouch;

	input_dev->open = itmtouch_open;

	input_dev->close = itmtouch_close;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);

	input_dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);

	input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);

	/* device limits */

	/* as specified by the ITM datasheet, X and Y are 12bit,

	 * Z (pressure) is 8 bit. However, the fields are defined up

	 * to 14 bits for future possible expansion.

	 */

	input_set_abs_params(input_dev, ABS_X, 0, 0x0FFF, 2, 0);

	input_set_abs_params(input_dev, ABS_Y, 0, 0x0FFF, 2, 0);

	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 0xFF, 2, 0);

	/* initialise the URB so we can read from the transport stream */

	pipe = usb_rcvintpipe(itmtouch->usbdev, endpoint->bEndpointAddress);

	maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));

	if (maxp > ITM_BUFSIZE)

		maxp = ITM_BUFSIZE;

	itmtouch->readurb = usb_alloc_urb(0, GFP_KERNEL);

	if (!itmtouch->readurb) {

		dbg("%s - usb_alloc_urb failed: itmtouch->readurb", __FUNCTION__);

		goto fail;

	}

	usb_fill_int_urb(itmtouch->readurb, itmtouch->usbdev, pipe, itmtouch->rbuf,

			 maxp, itmtouch_irq, itmtouch, endpoint->bInterval);

	input_register_device(itmtouch->inputdev);

	usb_set_intfdata(intf, itmtouch);

	return 0;

 fail:	input_free_device(input_dev);

	kfree(itmtouch);

	return -ENOMEM;

}

static void itmtouch_disconnect(struct usb_interface *intf)

{

	struct itmtouch_dev *itmtouch = usb_get_intfdata(intf);

	usb_set_intfdata(intf, NULL);

	if (itmtouch) {

		input_unregister_device(itmtouch->inputdev);

		usb_kill_urb(itmtouch->readurb);

		usb_free_urb(itmtouch->readurb);

		kfree(itmtouch);

	}

}

MODULE_DEVICE_TABLE(usb, itmtouch_ids);

static struct usb_driver itmtouch_driver = {

	.name =         "itmtouch",

	.probe =        itmtouch_probe,

	.disconnect =   itmtouch_disconnect,

	.id_table =     itmtouch_ids,

};

static int __init itmtouch_init(void)

{

	info(DRIVER_DESC " " DRIVER_VERSION);

	info(DRIVER_AUTHOR);

	return usb_register(&itmtouch_driver);

}

static void __exit itmtouch_exit(void)

{

	usb_deregister(&itmtouch_driver);

}

module_init(itmtouch_init);

module_exit(itmtouch_exit);

/******************************************************************************

 * mtouchusb.c  --  Driver for Microtouch (Now 3M) USB Touchscreens

 *

 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 * Based upon original work by Radoslaw Garbacz (usb-support@ite.pl)

 *  (http://freshmeat.net/projects/3mtouchscreendriver)

 *

 * History

 *

 *  0.3 & 0.4  2002 (TEJ) tejohnson@yahoo.com

 *    Updated to 2.4.18, then 2.4.19

 *    Old version still relied on stealing a minor

 *

 *  0.5  02/26/2004 (TEJ) tejohnson@yahoo.com

 *    Complete rewrite using Linux Input in 2.6.3

 *    Unfortunately no calibration support at this time

 *

 *  1.4 04/25/2004 (TEJ) tejohnson@yahoo.com

 *    Changed reset from standard USB dev reset to vendor reset

 *    Changed data sent to host from compensated to raw coordinates

 *    Eliminated vendor/product module params

 *    Performed multiple successful tests with an EXII-5010UC

 *

 *  1.5 02/27/2005 ddstreet@ieee.org

 *    Added module parameter to select raw or hw-calibrated coordinate reporting

 *

 *****************************************************************************/

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/usb/input.h>

#define MTOUCHUSB_MIN_XC                0x0

#define MTOUCHUSB_MAX_RAW_XC            0x4000

#define MTOUCHUSB_MAX_CALIB_XC          0xffff

#define MTOUCHUSB_XC_FUZZ               0x0

#define MTOUCHUSB_XC_FLAT               0x0

#define MTOUCHUSB_MIN_YC                0x0

#define MTOUCHUSB_MAX_RAW_YC            0x4000

#define MTOUCHUSB_MAX_CALIB_YC          0xffff

#define MTOUCHUSB_YC_FUZZ               0x0

#define MTOUCHUSB_YC_FLAT               0x0

#define MTOUCHUSB_ASYNC_REPORT          1

#define MTOUCHUSB_RESET                 7

#define MTOUCHUSB_REPORT_DATA_SIZE      11

#define MTOUCHUSB_REQ_CTRLLR_ID         10

#define MTOUCHUSB_GET_RAW_XC(data)      (data[8]<<8 | data[7])

#define MTOUCHUSB_GET_CALIB_XC(data)    (data[4]<<8 | data[3])

#define MTOUCHUSB_GET_RAW_YC(data)      (data[10]<<8 | data[9])

#define MTOUCHUSB_GET_CALIB_YC(data)    (data[6]<<8 | data[5])

#define MTOUCHUSB_GET_XC(data)          (raw_coordinates ? \

                                         MTOUCHUSB_GET_RAW_XC(data) : \

                                         MTOUCHUSB_GET_CALIB_XC(data))

#define MTOUCHUSB_GET_YC(data)          (raw_coordinates ? \

                                         MTOUCHUSB_GET_RAW_YC(data) : \

                                         MTOUCHUSB_GET_CALIB_YC(data))

#define MTOUCHUSB_GET_TOUCHED(data)     ((data[2] & 0x40) ? 1:0)

#define DRIVER_VERSION "v1.5"

#define DRIVER_AUTHOR "Todd E. Johnson, tejohnson@yahoo.com"

#define DRIVER_DESC "3M USB Touchscreen Driver"

#define DRIVER_LICENSE "GPL"

static int raw_coordinates = 1;

module_param(raw_coordinates, bool, S_IRUGO | S_IWUSR);

MODULE_PARM_DESC(raw_coordinates, "report raw coordinate values (y, default) or hardware-calibrated coordinate values (n)");

struct mtouch_usb {

	unsigned char *data;

	dma_addr_t data_dma;

	struct urb *irq;

	struct usb_device *udev;

	struct input_dev *input;

	char name[128];

	char phys[64];

};

static struct usb_device_id mtouchusb_devices[] = {

	{ USB_DEVICE(0x0596, 0x0001) },

	{ }

};

static void mtouchusb_irq(struct urb *urb)

{

	struct mtouch_usb *mtouch = urb->context;

	int retval;

	switch (urb->status) {

	case 0:

		/* success */

		break;

	case -ETIME:

		/* this urb is timing out */

		dbg("%s - urb timed out - was the device unplugged?",

		    __FUNCTION__);

		return;

	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;

	}

	input_report_key(mtouch->input, BTN_TOUCH,

			 MTOUCHUSB_GET_TOUCHED(mtouch->data));

	input_report_abs(mtouch->input, ABS_X, MTOUCHUSB_GET_XC(mtouch->data));

	input_report_abs(mtouch->input, ABS_Y,

			 (raw_coordinates ? MTOUCHUSB_MAX_RAW_YC : MTOUCHUSB_MAX_CALIB_YC)

			 - MTOUCHUSB_GET_YC(mtouch->data));

	input_sync(mtouch->input);

exit:

	retval = usb_submit_urb(urb, GFP_ATOMIC);

	if (retval)

		err("%s - usb_submit_urb failed with result: %d",

		    __FUNCTION__, retval);

}

static int mtouchusb_open(struct input_dev *input)

{

	struct mtouch_usb *mtouch = input->private;

	mtouch->irq->dev = mtouch->udev;

	if (usb_submit_urb(mtouch->irq, GFP_ATOMIC))

		return -EIO;

	return 0;

}

static void mtouchusb_close(struct input_dev *input)

{

	struct mtouch_usb *mtouch = input->private;

	usb_kill_urb(mtouch->irq);

}

static int mtouchusb_alloc_buffers(struct usb_device *udev, struct mtouch_usb *mtouch)

{

	dbg("%s - called", __FUNCTION__);

	mtouch->data = usb_buffer_alloc(udev, MTOUCHUSB_REPORT_DATA_SIZE,

					GFP_ATOMIC, &mtouch->data_dma);

	if (!mtouch->data)

		return -1;

	return 0;

}

static void mtouchusb_free_buffers(struct usb_device *udev, struct mtouch_usb *mtouch)

{

	dbg("%s - called", __FUNCTION__);

	if (mtouch->data)

		usb_buffer_free(udev, MTOUCHUSB_REPORT_DATA_SIZE,

				mtouch->data, mtouch->data_dma);

}

static int mtouchusb_probe(struct usb_interface *intf, const struct usb_device_id *id)

{

	struct mtouch_usb *mtouch;

	struct input_dev *input_dev;

	struct usb_host_interface *interface;

	struct usb_endpoint_descriptor *endpoint;

	struct usb_device *udev = interface_to_usbdev(intf);

	int nRet;

	dbg("%s - called", __FUNCTION__);

	dbg("%s - setting interface", __FUNCTION__);

	interface = intf->cur_altsetting;

	dbg("%s - setting endpoint", __FUNCTION__);

	endpoint = &interface->endpoint[0].desc;

	mtouch = kzalloc(sizeof(struct mtouch_usb), GFP_KERNEL);

	input_dev = input_allocate_device();

	if (!mtouch || !input_dev) {

		err("%s - Out of memory.", __FUNCTION__);

		goto fail1;

	}

	dbg("%s - allocating buffers", __FUNCTION__);

	if (mtouchusb_alloc_buffers(udev, mtouch))

		goto fail2;

	mtouch->udev = udev;

	mtouch->input = input_dev;

	if (udev->manufacturer)

		strlcpy(mtouch->name, udev->manufacturer, sizeof(mtouch->name));

	if (udev->product) {

		if (udev->manufacturer)

			strlcat(mtouch->name, " ", sizeof(mtouch->name));

		strlcat(mtouch->name, udev->product, sizeof(mtouch->name));

	}

	if (!strlen(mtouch->name))

		snprintf(mtouch->name, sizeof(mtouch->name),

			"USB Touchscreen %04x:%04x",

			le16_to_cpu(udev->descriptor.idVendor),

			le16_to_cpu(udev->descriptor.idProduct));

	usb_make_path(udev, mtouch->phys, sizeof(mtouch->phys));

	strlcpy(mtouch->phys, "/input0", sizeof(mtouch->phys));

	input_dev->name = mtouch->name;

	input_dev->phys = mtouch->phys;

	usb_to_input_id(udev, &input_dev->id);

	input_dev->cdev.dev = &intf->dev;

	input_dev->private = mtouch;

	input_dev->open = mtouchusb_open;

	input_dev->close = mtouchusb_close;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);

	input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);

	input_set_abs_params(input_dev, ABS_X, MTOUCHUSB_MIN_XC,

		raw_coordinates ? MTOUCHUSB_MAX_RAW_XC : MTOUCHUSB_MAX_CALIB_XC,

				MTOUCHUSB_XC_FUZZ, MTOUCHUSB_XC_FLAT);

	input_set_abs_params(input_dev, ABS_Y, MTOUCHUSB_MIN_YC,

		raw_coordinates ? MTOUCHUSB_MAX_RAW_YC : MTOUCHUSB_MAX_CALIB_YC,

		MTOUCHUSB_YC_FUZZ, MTOUCHUSB_YC_FLAT);

	nRet = usb_control_msg(mtouch->udev, usb_rcvctrlpipe(udev, 0),

			       MTOUCHUSB_RESET,

			       USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,

			       1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);

	dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",

	    __FUNCTION__, nRet);

	dbg("%s - usb_alloc_urb: mtouch->irq", __FUNCTION__);

	mtouch->irq = usb_alloc_urb(0, GFP_KERNEL);

	if (!mtouch->irq) {

		dbg("%s - usb_alloc_urb failed: mtouch->irq", __FUNCTION__);

		goto fail2;

	}

	dbg("%s - usb_fill_int_urb", __FUNCTION__);

	usb_fill_int_urb(mtouch->irq, mtouch->udev,

			 usb_rcvintpipe(mtouch->udev, 0x81),

			 mtouch->data, MTOUCHUSB_REPORT_DATA_SIZE,

			 mtouchusb_irq, mtouch, endpoint->bInterval);

	dbg("%s - input_register_device", __FUNCTION__);

	input_register_device(mtouch->input);

	nRet = usb_control_msg(mtouch->udev, usb_rcvctrlpipe(udev, 0),

			       MTOUCHUSB_ASYNC_REPORT,

			       USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,

			       1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);

	dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",

	    __FUNCTION__, nRet);

	usb_set_intfdata(intf, mtouch);

	return 0;

fail2:	mtouchusb_free_buffers(udev, mtouch);

fail1:	input_free_device(input_dev);

	kfree(mtouch);

	return -ENOMEM;

}

static void mtouchusb_disconnect(struct usb_interface *intf)

{

	struct mtouch_usb *mtouch = usb_get_intfdata(intf);

	dbg("%s - called", __FUNCTION__);

	usb_set_intfdata(intf, NULL);

	if (mtouch) {

		dbg("%s - mtouch is initialized, cleaning up", __FUNCTION__);

		usb_kill_urb(mtouch->irq);

		input_unregister_device(mtouch->input);

		usb_free_urb(mtouch->irq);

		mtouchusb_free_buffers(interface_to_usbdev(intf), mtouch);

		kfree(mtouch);

	}

}

MODULE_DEVICE_TABLE(usb, mtouchusb_devices);

static struct usb_driver mtouchusb_driver = {

	.name		= "mtouchusb",

	.probe		= mtouchusb_probe,

	.disconnect	= mtouchusb_disconnect,

	.id_table	= mtouchusb_devices,

};

static int __init mtouchusb_init(void)

{

	dbg("%s - called", __FUNCTION__);

	return usb_register(&mtouchusb_driver);

}

static void __exit mtouchusb_cleanup(void)

{

	dbg("%s - called", __FUNCTION__);

	usb_deregister(&mtouchusb_driver);

}

module_init(mtouchusb_init);

module_exit(mtouchusb_cleanup);

MODULE_AUTHOR(DRIVER_AUTHOR);

MODULE_DESCRIPTION(DRIVER_DESC);

MODULE_LICENSE("GPL");