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[Linuxconsole-commit]CVS: ruby/linux/drivers/input/joystick spaceball.c,NONE,1.17
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From: Vojtech P. <vo...@us...> - 2002-01-22 20:29:06
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Update of /cvsroot/linuxconsole/ruby/linux/drivers/input/joystick
In directory usw-pr-cvs1:/tmp/cvs-serv5480
Added Files:
Tag: 1.17
spaceball.c
Log Message:
Moved.
--- NEW FILE: spaceball.c ---
/*
* $Id: spaceball.c,v 1.17 2002/01/22 20:29:03 vojtech Exp $
*
* Copyright (c) 1999-2001 Vojtech Pavlik
*
* Based on the work of:
* David Thompson
* Joseph Krahn
*/
/*
* SpaceTec SpaceBall 2003/3003/4000 FLX 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 <vo...@uc...>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/serio.h>
MODULE_AUTHOR("Vojtech Pavlik <vo...@uc...>");
MODULE_DESCRIPTION("SpaceTec SpaceBall 2003/3003/4000 FLX driver");
MODULE_LICENSE("GPL");
/*
* Constants.
*/
#define SPACEBALL_MAX_LENGTH 128
#define SPACEBALL_MAX_ID 8
#define SPACEBALL_1003 1
#define SPACEBALL_2003B 3
#define SPACEBALL_2003C 4
#define SPACEBALL_3003C 7
#define SPACEBALL_4000FLX 8
#define SPACEBALL_4000FLX_L 9
static int spaceball_axes[] = { ABS_X, ABS_Z, ABS_Y, ABS_RX, ABS_RZ, ABS_RY };
static char *spaceball_names[] = {
"?", "SpaceTec SpaceBall 1003", "SpaceTec SpaceBall 2003", "SpaceTec SpaceBall 2003B",
"SpaceTec SpaceBall 2003C", "SpaceTec SpaceBall 3003", "SpaceTec SpaceBall SpaceController",
"SpaceTec SpaceBall 3003C", "SpaceTec SpaceBall 4000FLX", "SpaceTec SpaceBall 4000FLX Lefty" };
/*
* Per-Ball data.
*/
struct spaceball {
struct input_dev dev;
struct serio *serio;
int idx;
int escape;
unsigned char data[SPACEBALL_MAX_LENGTH];
char phys[32];
};
/*
* spaceball_process_packet() decodes packets the driver receives from the
* SpaceBall.
*/
static void spaceball_process_packet(struct spaceball* spaceball)
{
struct input_dev *dev = &spaceball->dev;
unsigned char *data = spaceball->data;
int i;
if (spaceball->idx < 2) return;
switch (spaceball->data[0]) {
case 'D': /* Ball data */
if (spaceball->idx != 15) return;
for (i = 0; i < 6; i++)
input_report_abs(dev, spaceball_axes[i],
(__s16)((data[2 * i + 3] << 8) | data[2 * i + 2]));
break;
case 'K': /* Button data */
if (spaceball->idx != 3) return;
input_report_key(dev, BTN_1, (data[2] & 0x01) || (data[2] & 0x20));
input_report_key(dev, BTN_2, data[2] & 0x02);
input_report_key(dev, BTN_3, data[2] & 0x04);
input_report_key(dev, BTN_4, data[2] & 0x08);
input_report_key(dev, BTN_5, data[1] & 0x01);
input_report_key(dev, BTN_6, data[1] & 0x02);
input_report_key(dev, BTN_7, data[1] & 0x04);
input_report_key(dev, BTN_8, data[1] & 0x10);
break;
case '.': /* Advanced button data */
if (spaceball->idx != 3) return;
input_report_key(dev, BTN_1, data[2] & 0x01);
input_report_key(dev, BTN_2, data[2] & 0x02);
input_report_key(dev, BTN_3, data[2] & 0x04);
input_report_key(dev, BTN_4, data[2] & 0x08);
input_report_key(dev, BTN_5, data[2] & 0x10);
input_report_key(dev, BTN_6, data[2] & 0x20);
input_report_key(dev, BTN_7, data[2] & 0x80);
input_report_key(dev, BTN_8, data[1] & 0x01);
input_report_key(dev, BTN_9, data[1] & 0x02);
input_report_key(dev, BTN_A, data[1] & 0x04);
input_report_key(dev, BTN_B, data[1] & 0x08);
input_report_key(dev, BTN_C, data[1] & 0x10);
input_report_key(dev, BTN_MODE, data[1] & 0x20);
break;
case 'E': /* Device error */
spaceball->data[spaceball->idx - 1] = 0;
printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);
break;
case '?': /* Bad command packet */
spaceball->data[spaceball->idx - 1] = 0;
printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);
break;
}
}
/*
* Spaceball 4000 FLX packets all start with a one letter packet-type decriptor,
* and end in 0x0d. It uses '^' as an escape for CR, XOFF and XON characters which
* can occur in the axis values.
*/
static void spaceball_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
{
struct spaceball *spaceball = serio->private;
switch (data) {
case 0xd:
spaceball_process_packet(spaceball);
spaceball->idx = 0;
spaceball->escape = 0;
return;
case '^':
if (!spaceball->escape) {
spaceball->escape = 1;
return;
}
spaceball->escape = 0;
case 'M':
case 'Q':
case 'S':
if (spaceball->escape) {
spaceball->escape = 0;
data &= 0x1f;
}
default:
if (spaceball->escape)
spaceball->escape = 0;
if (spaceball->idx < SPACEBALL_MAX_LENGTH)
spaceball->data[spaceball->idx++] = data;
return;
}
}
/*
* spaceball_disconnect() is the opposite of spaceball_connect()
*/
static void spaceball_disconnect(struct serio *serio)
{
struct spaceball* spaceball = serio->private;
input_unregister_device(&spaceball->dev);
serio_close(serio);
kfree(spaceball);
}
/*
* spaceball_connect() is the routine that is called when someone adds a
* new serio device. It looks for the Magellan, and if found, registers
* it as an input device.
*/
static void spaceball_connect(struct serio *serio, struct serio_dev *dev)
{
struct spaceball *spaceball;
int i, t, id;
if ((serio->type & ~SERIO_ID) != (SERIO_RS232 | SERIO_SPACEBALL))
return;
if ((id = (serio->type & SERIO_ID) >> 8) > SPACEBALL_MAX_ID)
return;
if (!(spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL)))
return;
memset(spaceball, 0, sizeof(struct spaceball));
spaceball->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
switch (id) {
case SPACEBALL_4000FLX:
case SPACEBALL_4000FLX_L:
spaceball->dev.keybit[LONG(BTN_0)] |= BIT(BTN_9);
spaceball->dev.keybit[LONG(BTN_A)] |= BIT(BTN_A) | BIT(BTN_B) | BIT(BTN_C) | BIT(BTN_MODE);
default:
spaceball->dev.keybit[LONG(BTN_0)] |= BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4)
| BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7) | BIT(BTN_8);
case SPACEBALL_3003C:
spaceball->dev.keybit[LONG(BTN_0)] |= BIT(BTN_1) | BIT(BTN_8);
}
for (i = 0; i < 6; i++) {
t = spaceball_axes[i];
set_bit(t, spaceball->dev.absbit);
spaceball->dev.absmin[t] = i < 3 ? -8000 : -1600;
spaceball->dev.absmax[t] = i < 3 ? 8000 : 1600;
spaceball->dev.absflat[t] = i < 3 ? 40 : 8;
spaceball->dev.absfuzz[t] = i < 3 ? 8 : 2;
}
spaceball->serio = serio;
spaceball->dev.private = spaceball;
sprintf(spaceball->phys, "%s/input0", serio->phys);
spaceball->dev.name = spaceball_names[id];
spaceball->dev.phys = spaceball->phys;
spaceball->dev.idbus = BUS_RS232;
spaceball->dev.idvendor = SERIO_SPACEBALL;
spaceball->dev.idproduct = id;
spaceball->dev.idversion = 0x0100;
serio->private = spaceball;
if (serio_open(serio, dev)) {
kfree(spaceball);
return;
}
input_register_device(&spaceball->dev);
printk(KERN_INFO "input: %s on serio%s\n",
spaceball_names[id], serio->phys);
}
/*
* The serio device structure.
*/
static struct serio_dev spaceball_dev = {
interrupt: spaceball_interrupt,
connect: spaceball_connect,
disconnect: spaceball_disconnect,
};
/*
* The functions for inserting/removing us as a module.
*/
int __init spaceball_init(void)
{
serio_register_device(&spaceball_dev);
return 0;
}
void __exit spaceball_exit(void)
{
serio_unregister_device(&spaceball_dev);
}
module_init(spaceball_init);
module_exit(spaceball_exit);
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