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/*
* $Id: wacom.c,v 1.22 2001/04/26 11:26:09 vojtech Exp $
*
* Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@suse.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>
*
* USB Wacom Graphire and Wacom Intuos tablet support
*
* Sponsored by SuSE
*
* 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.
*/
/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb.h>
/*
* Version Information
*/
#define DRIVER_VERSION "v1.21"
#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>"
#define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_LICENSE("GPL");
#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;
void (*irq)(struct urb *urb);
unsigned long evbit;
unsigned long absbit;
unsigned long relbit;
unsigned long btnbit;
unsigned long digibit;
};
struct wacom {
signed char data[10];
struct input_dev dev;
struct usb_device *usbdev;
struct urb irq;
struct wacom_features *features;
int tool[2];
int open;
int x, y;
__u32 serial[2];
};
static void wacom_pl_irq(struct urb *urb)
{
struct wacom *wacom = urb->context;
unsigned char *data = wacom->data;
struct input_dev *dev = &wacom->dev;
int prox;
if (urb->status) return;
if (data[0] != 2)
dbg("received unknown report #%d", data[0]);
prox = data[1] & 0x20;
input_report_key(dev, BTN_TOOL_PEN, prox);
if (prox) {
int pressure = (data[4] & 0x04) >> 2 | ((__u32)(data[7] & 0x7f) << 1);
input_report_abs(dev, ABS_X, data[3] | ((__u32)data[2] << 8) | ((__u32)(data[1] & 0x03) << 16));
input_report_abs(dev, ABS_Y, data[6] | ((__u32)data[5] << 8) | ((__u32)(data[4] & 0x03) << 8));
input_report_abs(dev, ABS_PRESSURE, (data[7] & 0x80) ? (255 - pressure) : (pressure + 255));
input_report_key(dev, BTN_TOUCH, data[4] & 0x08);
input_report_key(dev, BTN_STYLUS, data[4] & 0x10);
input_report_key(dev, BTN_STYLUS2, data[4] & 0x20);
}
input_event(dev, EV_MSC, MSC_SERIAL, 0);
}
static void wacom_graphire_irq(struct urb *urb)
{
struct wacom *wacom = urb->context;
unsigned char *data = wacom->data;
struct input_dev *dev = &wacom->dev;
int x, y;
if (urb->status) return;
if (data[0] != 2)
dbg("received unknown report #%d", data[0]);
x = data[2] | ((__u32)data[3] << 8);
y = data[4] | ((__u32)data[5] << 8);
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 */
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_key(dev, BTN_MIDDLE, data[1] & 0x04);
input_report_abs(dev, ABS_DISTANCE, data[7]);
input_report_rel(dev, REL_WHEEL, (signed char) data[6]);
input_report_abs(dev, ABS_X, x);
input_report_abs(dev, ABS_Y, y);
input_event(dev, EV_MSC, MSC_SERIAL, data[1] & 0x01);
return;
}
if (data[1] & 0x80) {
input_report_abs(dev, ABS_X, wacom->x = x);
input_report_abs(dev, ABS_Y, wacom->y = y);
}
input_report_abs(dev, ABS_PRESSURE, data[6] | ((__u32)data[7] << 8));
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_event(dev, EV_MSC, MSC_SERIAL, data[1] & 0x01);
}
static void wacom_intuos_irq(struct urb *urb)
{
struct wacom *wacom = urb->context;
unsigned char *data = wacom->data;
struct input_dev *dev = &wacom->dev;
unsigned int t;
int idx;
if (urb->status) return;
if (data[0] != 2)
dbg("received unknown report #%d", data[0]);
/* tool number */
idx = data[1] & 0x01;
if ((data[1] & 0xfc) == 0xc0) { /* Enter report */
wacom->serial[idx] = ((__u32)(data[3] & 0x0f) << 4) + /* serial number of the tool */
((__u32)data[4] << 16) + ((__u32)data[5] << 12) +
((__u32)data[6] << 4) + (data[7] >> 4);
switch (((__u32)data[2] << 4) | (data[3] >> 4)) {
case 0x832:
case 0x012: wacom->tool[idx] = BTN_TOOL_PENCIL; break; /* Inking pen */
case 0x822:
case 0x022: wacom->tool[idx] = BTN_TOOL_PEN; break; /* Pen */
case 0x812:
case 0x032: wacom->tool[idx] = BTN_TOOL_BRUSH; break; /* Stroke pen */
case 0x09c:
case 0x094: wacom->tool[idx] = BTN_TOOL_MOUSE; break; /* Mouse 4D */
case 0x096: wacom->tool[idx] = BTN_TOOL_LENS; break; /* Lens cursor */
case 0x82a:
case 0x91a:
case 0x0fa: wacom->tool[idx] = BTN_TOOL_RUBBER; break; /* Eraser */
case 0x112: wacom->tool[idx] = BTN_TOOL_AIRBRUSH; break; /* Airbrush */
default: wacom->tool[idx] = BTN_TOOL_PEN; break; /* Unknown tool */
}
input_report_key(dev, wacom->tool[idx], 1);
input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
return;
}
if ((data[1] & 0xfe) == 0x80) { /* Exit report */
input_report_key(dev, wacom->tool[idx], 0);
input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
return;
}
input_report_abs(dev, ABS_X, ((__u32)data[2] << 8) | data[3]);
input_report_abs(dev, ABS_Y, ((__u32)data[4] << 8) | data[5]);
input_report_abs(dev, ABS_DISTANCE, data[9] >> 4);
if ((data[1] & 0xb8) == 0xa0) { /* general pen packet */
input_report_abs(dev, ABS_PRESSURE, t = ((__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);
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);
}
if ((data[1] & 0xbc) == 0xb4) { /* airbrush second packet */
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);
}
if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) { /* 4D mouse or Lens cursor packets */
if (data[1] & 0x02) { /* Rotation packet */
input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ?
((__u32)data[6] << 2) | ((data[7] >> 6) & 3):
(-(((__u32)data[6] << 2) | ((data[7] >> 6) & 3))) - 1);
} else {
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);
if ((data[1] & 0x10) == 0) { /* 4D mouse packets */
input_report_key(dev, BTN_SIDE, data[8] & 0x20);
input_report_key(dev, BTN_EXTRA, data[8] & 0x10);
input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ?
((__u32)data[6] << 2) | ((data[7] >> 6) & 3) :
-((__u32)data[6] << 2) | ((data[7] >> 6) & 3));
} else { /* Lens cursor packets */
input_report_key(dev, BTN_SIDE, data[8] & 0x10);
input_report_key(dev, BTN_EXTRA, data[8] & 0x08);
}
}
}
input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
}
#define WACOM_INTUOS_TOOLS (BIT(BTN_TOOL_BRUSH) | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS))
#define WACOM_INTUOS_BUTTONS (BIT(BTN_SIDE) | BIT(BTN_EXTRA))
#define WACOM_INTUOS_ABS (BIT(ABS_TILT_X) | BIT(ABS_TILT_Y) | BIT(ABS_RZ) | BIT(ABS_THROTTLE))
struct wacom_features wacom_features[] = {
{ "Wacom Graphire", 8, 10206, 7422, 511, 32, wacom_graphire_irq,
BIT(EV_REL), 0, BIT(REL_WHEEL), 0 },
{ "Wacom Intuos 4x5", 10, 12700, 10360, 1023, 15, wacom_intuos_irq,
0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
{ "Wacom Intuos 6x8", 10, 20320, 15040, 1023, 15, wacom_intuos_irq,
0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
{ "Wacom Intuos 9x12", 10, 30480, 23060, 1023, 15, wacom_intuos_irq,
0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
{ "Wacom Intuos 12x12", 10, 30480, 30480, 1023, 15, wacom_intuos_irq,
0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
{ "Wacom Intuos 12x18", 10, 47720, 30480, 1023, 15, wacom_intuos_irq,
0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
{ "Wacom PL500", 8, 12328, 9256, 511, 32, wacom_pl_irq,
0, 0, 0, 0 },
{ NULL , 0 }
};
struct usb_device_id wacom_ids[] = {
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10), driver_info: 0 },
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20), driver_info: 1 },
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21), driver_info: 2 },
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22), driver_info: 3 },
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23), driver_info: 4 },
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24), driver_info: 5 },
{ USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31), driver_info: 6 },
{ }
};
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))
return -EIO;
return 0;
}
static void wacom_close(struct input_dev *dev)
{
struct wacom *wacom = dev->private;
if (!--wacom->open)
usb_unlink_urb(&wacom->irq);
}
static void *wacom_probe(struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *id)
{
struct usb_endpoint_descriptor *endpoint;
struct wacom *wacom;
if (!(wacom = kmalloc(sizeof(struct wacom), GFP_KERNEL))) return NULL;
memset(wacom, 0, sizeof(struct wacom));
wacom->features = wacom_features + id->driver_info;
wacom->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_MSC) | wacom->features->evbit;
wacom->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) | BIT(ABS_DISTANCE) | BIT(ABS_WHEEL) | wacom->features->absbit;
wacom->dev.relbit[0] |= wacom->features->relbit;
wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | wacom->features->btnbit;
wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) |
BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2) | wacom->features->digibit;
wacom->dev.mscbit[0] |= BIT(MSC_SERIAL);
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.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;
wacom->dev.name = wacom->features->name;
wacom->dev.idbus = BUS_USB;
wacom->dev.idvendor = dev->descriptor.idVendor;
wacom->dev.idproduct = dev->descriptor.idProduct;
wacom->dev.idversion = dev->descriptor.bcdDevice;
wacom->usbdev = dev;
endpoint = dev->config[0].interface[ifnum].altsetting[0].endpoint + 0;
FILL_INT_URB(&wacom->irq, dev, usb_rcvintpipe(dev, endpoint->bEndpointAddress),
wacom->data, wacom->features->pktlen, wacom->features->irq, wacom, endpoint->bInterval);
input_register_device(&wacom->dev);
printk(KERN_INFO "input%d: %s on usb%d:%d.%d\n",
wacom->dev.number, wacom->features->name, dev->bus->busnum, dev->devnum, ifnum);
return wacom;
}
static void wacom_disconnect(struct usb_device *dev, void *ptr)
{
struct wacom *wacom = ptr;
usb_unlink_urb(&wacom->irq);
input_unregister_device(&wacom->dev);
kfree(wacom);
}
static struct usb_driver wacom_driver = {
name: "wacom",
probe: wacom_probe,
disconnect: wacom_disconnect,
id_table: wacom_ids,
};
static int __init wacom_init(void)
{
usb_register(&wacom_driver);
info(DRIVER_VERSION ":" DRIVER_DESC);
return 0;
}
static void __exit wacom_exit(void)
{
usb_deregister(&wacom_driver);
}
module_init(wacom_init);
module_exit(wacom_exit);
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