forked from Minki/linux
1da177e4c3
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!
264 lines
6.8 KiB
C
264 lines
6.8 KiB
C
/*
|
|
* $Id: spaceorb.c,v 1.15 2002/01/22 20:29:19 vojtech Exp $
|
|
*
|
|
* Copyright (c) 1999-2001 Vojtech Pavlik
|
|
*
|
|
* Based on the work of:
|
|
* David Thompson
|
|
*/
|
|
|
|
/*
|
|
* SpaceTec SpaceOrb 360 and Avenger 6dof controller 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, 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>
|
|
|
|
#define DRIVER_DESC "SpaceTec SpaceOrb 360 and Avenger 6dof controller driver"
|
|
|
|
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* Constants.
|
|
*/
|
|
|
|
#define SPACEORB_MAX_LENGTH 64
|
|
|
|
static int spaceorb_buttons[] = { BTN_TL, BTN_TR, BTN_Y, BTN_X, BTN_B, BTN_A };
|
|
static int spaceorb_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
|
|
static char *spaceorb_name = "SpaceTec SpaceOrb 360 / Avenger";
|
|
|
|
/*
|
|
* Per-Orb data.
|
|
*/
|
|
|
|
struct spaceorb {
|
|
struct input_dev dev;
|
|
struct serio *serio;
|
|
int idx;
|
|
unsigned char data[SPACEORB_MAX_LENGTH];
|
|
char phys[32];
|
|
};
|
|
|
|
static unsigned char spaceorb_xor[] = "SpaceWare";
|
|
|
|
static unsigned char *spaceorb_errors[] = { "EEPROM storing 0 failed", "Receive queue overflow", "Transmit queue timeout",
|
|
"Bad packet", "Power brown-out", "EEPROM checksum error", "Hardware fault" };
|
|
|
|
/*
|
|
* spaceorb_process_packet() decodes packets the driver receives from the
|
|
* SpaceOrb.
|
|
*/
|
|
|
|
static void spaceorb_process_packet(struct spaceorb *spaceorb, struct pt_regs *regs)
|
|
{
|
|
struct input_dev *dev = &spaceorb->dev;
|
|
unsigned char *data = spaceorb->data;
|
|
unsigned char c = 0;
|
|
int axes[6];
|
|
int i;
|
|
|
|
if (spaceorb->idx < 2) return;
|
|
for (i = 0; i < spaceorb->idx; i++) c ^= data[i];
|
|
if (c) return;
|
|
|
|
input_regs(dev, regs);
|
|
|
|
switch (data[0]) {
|
|
|
|
case 'R': /* Reset packet */
|
|
spaceorb->data[spaceorb->idx - 1] = 0;
|
|
for (i = 1; i < spaceorb->idx && spaceorb->data[i] == ' '; i++);
|
|
printk(KERN_INFO "input: %s [%s] on %s\n",
|
|
spaceorb_name, spaceorb->data + i, spaceorb->serio->phys);
|
|
break;
|
|
|
|
case 'D': /* Ball + button data */
|
|
if (spaceorb->idx != 12) return;
|
|
for (i = 0; i < 9; i++) spaceorb->data[i+2] ^= spaceorb_xor[i];
|
|
axes[0] = ( data[2] << 3) | (data[ 3] >> 4);
|
|
axes[1] = ((data[3] & 0x0f) << 6) | (data[ 4] >> 1);
|
|
axes[2] = ((data[4] & 0x01) << 9) | (data[ 5] << 2) | (data[4] >> 5);
|
|
axes[3] = ((data[6] & 0x1f) << 5) | (data[ 7] >> 2);
|
|
axes[4] = ((data[7] & 0x03) << 8) | (data[ 8] << 1) | (data[7] >> 6);
|
|
axes[5] = ((data[9] & 0x3f) << 4) | (data[10] >> 3);
|
|
for (i = 0; i < 6; i++)
|
|
input_report_abs(dev, spaceorb_axes[i], axes[i] - ((axes[i] & 0x200) ? 1024 : 0));
|
|
for (i = 0; i < 6; i++)
|
|
input_report_key(dev, spaceorb_buttons[i], (data[1] >> i) & 1);
|
|
break;
|
|
|
|
case 'K': /* Button data */
|
|
if (spaceorb->idx != 5) return;
|
|
for (i = 0; i < 7; i++)
|
|
input_report_key(dev, spaceorb_buttons[i], (data[2] >> i) & 1);
|
|
|
|
break;
|
|
|
|
case 'E': /* Error packet */
|
|
if (spaceorb->idx != 4) return;
|
|
printk(KERN_ERR "joy-spaceorb: Device error. [ ");
|
|
for (i = 0; i < 7; i++) if (data[1] & (1 << i)) printk("%s ", spaceorb_errors[i]);
|
|
printk("]\n");
|
|
break;
|
|
}
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
static irqreturn_t spaceorb_interrupt(struct serio *serio,
|
|
unsigned char data, unsigned int flags, struct pt_regs *regs)
|
|
{
|
|
struct spaceorb* spaceorb = serio_get_drvdata(serio);
|
|
|
|
if (~data & 0x80) {
|
|
if (spaceorb->idx) spaceorb_process_packet(spaceorb, regs);
|
|
spaceorb->idx = 0;
|
|
}
|
|
if (spaceorb->idx < SPACEORB_MAX_LENGTH)
|
|
spaceorb->data[spaceorb->idx++] = data & 0x7f;
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* spaceorb_disconnect() is the opposite of spaceorb_connect()
|
|
*/
|
|
|
|
static void spaceorb_disconnect(struct serio *serio)
|
|
{
|
|
struct spaceorb* spaceorb = serio_get_drvdata(serio);
|
|
|
|
input_unregister_device(&spaceorb->dev);
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(spaceorb);
|
|
}
|
|
|
|
/*
|
|
* spaceorb_connect() is the routine that is called when someone adds a
|
|
* new serio device that supports SpaceOrb/Avenger protocol and registers
|
|
* it as an input device.
|
|
*/
|
|
|
|
static int spaceorb_connect(struct serio *serio, struct serio_driver *drv)
|
|
{
|
|
struct spaceorb *spaceorb;
|
|
int i, t;
|
|
int err;
|
|
|
|
if (!(spaceorb = kmalloc(sizeof(struct spaceorb), GFP_KERNEL)))
|
|
return -ENOMEM;
|
|
|
|
memset(spaceorb, 0, sizeof(struct spaceorb));
|
|
|
|
spaceorb->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
|
|
|
|
for (i = 0; i < 6; i++)
|
|
set_bit(spaceorb_buttons[i], spaceorb->dev.keybit);
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
t = spaceorb_axes[i];
|
|
set_bit(t, spaceorb->dev.absbit);
|
|
spaceorb->dev.absmin[t] = -508;
|
|
spaceorb->dev.absmax[t] = 508;
|
|
}
|
|
|
|
spaceorb->serio = serio;
|
|
spaceorb->dev.private = spaceorb;
|
|
|
|
sprintf(spaceorb->phys, "%s/input0", serio->phys);
|
|
|
|
init_input_dev(&spaceorb->dev);
|
|
spaceorb->dev.name = spaceorb_name;
|
|
spaceorb->dev.phys = spaceorb->phys;
|
|
spaceorb->dev.id.bustype = BUS_RS232;
|
|
spaceorb->dev.id.vendor = SERIO_SPACEORB;
|
|
spaceorb->dev.id.product = 0x0001;
|
|
spaceorb->dev.id.version = 0x0100;
|
|
spaceorb->dev.dev = &serio->dev;
|
|
|
|
serio_set_drvdata(serio, spaceorb);
|
|
|
|
err = serio_open(serio, drv);
|
|
if (err) {
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(spaceorb);
|
|
return err;
|
|
}
|
|
|
|
input_register_device(&spaceorb->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The serio driver structure.
|
|
*/
|
|
|
|
static struct serio_device_id spaceorb_serio_ids[] = {
|
|
{
|
|
.type = SERIO_RS232,
|
|
.proto = SERIO_SPACEORB,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(serio, spaceorb_serio_ids);
|
|
|
|
static struct serio_driver spaceorb_drv = {
|
|
.driver = {
|
|
.name = "spaceorb",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = spaceorb_serio_ids,
|
|
.interrupt = spaceorb_interrupt,
|
|
.connect = spaceorb_connect,
|
|
.disconnect = spaceorb_disconnect,
|
|
};
|
|
|
|
/*
|
|
* The functions for inserting/removing us as a module.
|
|
*/
|
|
|
|
static int __init spaceorb_init(void)
|
|
{
|
|
serio_register_driver(&spaceorb_drv);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit spaceorb_exit(void)
|
|
{
|
|
serio_unregister_driver(&spaceorb_drv);
|
|
}
|
|
|
|
module_init(spaceorb_init);
|
|
module_exit(spaceorb_exit);
|