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SubjectRe: mouse problems in 2.4.2 -> lost byte


>logitech trackman marble wheel.
>
>send me the driver.

Attached :-) I'm assuming you use the logitech busmouse driver. Logitech
makes many kinds of mice.

>Are you working on getting the thing incorporated
>into xf86? should I pester someone over there about it? should I assume
>that 'everything will be OK', if I wait long enough?

This is a kernel driver so it is independent of XFree86. Use the
configuration I told you about with X and it will work. Well as long as
XFree86 doesn't break its PS/2 driver.

If you have any problems setting it up let me know.

MS: (n) 1. A debilitating and surprisingly widespread affliction that
renders the sufferer barely able to perform the simplest task. 2. A disease.

James Simmons [jsimmons@linux-fbdev.org] ____/|
fbdev/console/gfx developer \ o.O|
http://www.linux-fbdev.org =(_)=
http://linuxgfx.sourceforge.net U
http://linuxconsole.sourceforge.net
/*
* $Id: logibm.c,v 1.7 2000/05/29 11:19:51 vojtech Exp $
*
* Copyright (c) 1999-2000 Vojtech Pavlik
*
* Based on the work of:
* James Banks Matthew Dillon
* David Giller Nathan Laredo
* Linus Torvalds Johan Myreen
* Cliff Matthews Philip Blundell
* Russell King
*
* Sponsored by SuSE
*/

/*
* Logitech Bus Mouse Driver for Linux
*/

/*
* 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@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
*/

#include <asm/io.h>
#include <asm/irq.h>

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/input.h>

#define LOGIBM_BASE 0x23c
#define LOGIBM_EXTENT 4

#define LOGIBM_DATA_PORT LOGIBM_BASE + 0
#define LOGIBM_SIGNATURE_PORT LOGIBM_BASE + 1
#define LOGIBM_CONTROL_PORT LOGIBM_BASE + 2
#define LOGIBM_CONFIG_PORT LOGIBM_BASE + 3

#define LOGIBM_ENABLE_IRQ 0x00
#define LOGIBM_DISABLE_IRQ 0x10
#define LOGIBM_READ_X_LOW 0x80
#define LOGIBM_READ_X_HIGH 0xa0
#define LOGIBM_READ_Y_LOW 0xc0
#define LOGIBM_READ_Y_HIGH 0xe0

#define LOGIBM_DEFAULT_MODE 0x90
#define LOGIBM_CONFIG_BYTE 0x91
#define LOGIBM_SIGNATURE_BYTE 0xa5

#define LOGIBM_IRQ 5

MODULE_PARM(logibm_irq, "i");

static int logibm_irq = LOGIBM_IRQ;
static int logibm_used = 0;

static void logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs);

static int logibm_open(struct input_dev *dev)
{
if (logibm_used++)
return 0;
if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
logibm_used--;
printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
return -EBUSY;
}
outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
return 0;
}

static void logibm_close(struct input_dev *dev)
{
if (--logibm_used)
return;
outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
free_irq(logibm_irq, NULL);
}

static struct input_dev logibm_dev = {
evbit: { BIT(EV_KEY) | BIT(EV_REL) },
keybit: { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT) },
relbit: { BIT(REL_X) | BIT(REL_Y) },
open: logibm_open,
close: logibm_close,
name: "Logitech bus mouse",
idbus: BUS_ISA,
idvendor: 0x0002,
idproduct: 0x0001,
idversion: 0x0100,
};

static void logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
char dx, dy;
unsigned char buttons;

outb(LOGIBM_READ_X_LOW, LOGIBM_CONTROL_PORT);
dx = (inb(LOGIBM_DATA_PORT) & 0xf);
outb(LOGIBM_READ_X_HIGH, LOGIBM_CONTROL_PORT);
dx |= (inb(LOGIBM_DATA_PORT) & 0xf) << 4;
outb(LOGIBM_READ_Y_LOW, LOGIBM_CONTROL_PORT);
dy = (inb(LOGIBM_DATA_PORT) & 0xf);
outb(LOGIBM_READ_Y_HIGH, LOGIBM_CONTROL_PORT);
buttons = inb(LOGIBM_DATA_PORT);
dy |= (buttons & 0xf) << 4;
buttons = ~buttons;

input_report_rel(&logibm_dev, REL_X, dx);
input_report_rel(&logibm_dev, REL_Y, 255 - dy);
input_report_key(&logibm_dev, BTN_MIDDLE, buttons & 1);
input_report_key(&logibm_dev, BTN_LEFT, buttons & 2);
input_report_key(&logibm_dev, BTN_RIGHT, buttons & 4);
}

#ifndef MODULE
static int __init logibm_setup(char *str)
{
int ints[4];
str = get_options(str, ARRAY_SIZE(ints), ints);
if (ints[0] > 0) logibm_irq = ints[1];
return 1;
}
__setup("logibm_irq=", logibm_setup);
#endif

static int __init logibm_init(void)
{
if (request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
printk(KERN_ERR "logibm.c: Can't allocate ports at %#x\n", LOGIBM_BASE);
return -EBUSY;
}

outb(LOGIBM_CONFIG_BYTE, LOGIBM_CONFIG_PORT);
outb(LOGIBM_SIGNATURE_BYTE, LOGIBM_SIGNATURE_PORT);
udelay(100);

if (inb(LOGIBM_SIGNATURE_PORT) != LOGIBM_SIGNATURE_BYTE) {
release_region(LOGIBM_BASE, LOGIBM_EXTENT);
printk(KERN_ERR "logibm.c: Didn't find Logitech busmouse at %#x\n", LOGIBM_BASE);
return -ENODEV;
}

outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);

input_register_device(&logibm_dev);

printk(KERN_INFO "input%d: Logitech bus mouse at %#x irq %d\n",
logibm_dev.number, LOGIBM_BASE, logibm_irq);

return 0;
}

static void __exit logibm_exit(void)
{
input_unregister_device(&logibm_dev);
release_region(LOGIBM_BASE, LOGIBM_EXTENT);
}

module_init(logibm_init);
module_exit(logibm_exit);
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