android_kernel_xiaomi_sm8350/drivers/input/joystick/magellan.c
Jiri Slaby 7b19ada2ed get rid of input BIT* duplicate defines
get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00

243 lines
5.9 KiB
C

/*
* $Id: magellan.c,v 1.16 2002/01/22 20:28:39 vojtech Exp $
*
* Copyright (c) 1999-2001 Vojtech Pavlik
*/
/*
* Magellan and Space Mouse 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/module.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
#define DRIVER_DESC "Magellan and SpaceMouse 6dof controller driver"
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
/*
* Definitions & global arrays.
*/
#define MAGELLAN_MAX_LENGTH 32
static int magellan_buttons[] = { BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
static int magellan_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
/*
* Per-Magellan data.
*/
struct magellan {
struct input_dev *dev;
int idx;
unsigned char data[MAGELLAN_MAX_LENGTH];
char phys[32];
};
/*
* magellan_crunch_nibbles() verifies that the bytes sent from the Magellan
* have correct upper nibbles for the lower ones, if not, the packet will
* be thrown away. It also strips these upper halves to simplify further
* processing.
*/
static int magellan_crunch_nibbles(unsigned char *data, int count)
{
static unsigned char nibbles[16] = "0AB3D56GH9:K<MN?";
do {
if (data[count] == nibbles[data[count] & 0xf])
data[count] = data[count] & 0xf;
else
return -1;
} while (--count);
return 0;
}
static void magellan_process_packet(struct magellan* magellan)
{
struct input_dev *dev = magellan->dev;
unsigned char *data = magellan->data;
int i, t;
if (!magellan->idx) return;
switch (magellan->data[0]) {
case 'd': /* Axis data */
if (magellan->idx != 25) return;
if (magellan_crunch_nibbles(data, 24)) return;
for (i = 0; i < 6; i++)
input_report_abs(dev, magellan_axes[i],
(data[(i << 2) + 1] << 12 | data[(i << 2) + 2] << 8 |
data[(i << 2) + 3] << 4 | data[(i << 2) + 4]) - 32768);
break;
case 'k': /* Button data */
if (magellan->idx != 4) return;
if (magellan_crunch_nibbles(data, 3)) return;
t = (data[1] << 1) | (data[2] << 5) | data[3];
for (i = 0; i < 9; i++) input_report_key(dev, magellan_buttons[i], (t >> i) & 1);
break;
}
input_sync(dev);
}
static irqreturn_t magellan_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
struct magellan* magellan = serio_get_drvdata(serio);
if (data == '\r') {
magellan_process_packet(magellan);
magellan->idx = 0;
} else {
if (magellan->idx < MAGELLAN_MAX_LENGTH)
magellan->data[magellan->idx++] = data;
}
return IRQ_HANDLED;
}
/*
* magellan_disconnect() is the opposite of magellan_connect()
*/
static void magellan_disconnect(struct serio *serio)
{
struct magellan* magellan = serio_get_drvdata(serio);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_unregister_device(magellan->dev);
kfree(magellan);
}
/*
* magellan_connect() is the routine that is called when someone adds a
* new serio device that supports Magellan protocol and registers it as
* an input device.
*/
static int magellan_connect(struct serio *serio, struct serio_driver *drv)
{
struct magellan *magellan;
struct input_dev *input_dev;
int err = -ENOMEM;
int i;
magellan = kzalloc(sizeof(struct magellan), GFP_KERNEL);
input_dev = input_allocate_device();
if (!magellan || !input_dev)
goto fail1;
magellan->dev = input_dev;
snprintf(magellan->phys, sizeof(magellan->phys), "%s/input0", serio->phys);
input_dev->name = "LogiCad3D Magellan / SpaceMouse";
input_dev->phys = magellan->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_MAGELLAN;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &serio->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
for (i = 0; i < 9; i++)
set_bit(magellan_buttons[i], input_dev->keybit);
for (i = 0; i < 6; i++)
input_set_abs_params(input_dev, magellan_axes[i], -360, 360, 0, 0);
serio_set_drvdata(serio, magellan);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(magellan->dev);
if (err)
goto fail3;
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(magellan);
return err;
}
/*
* The serio driver structure.
*/
static struct serio_device_id magellan_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_MAGELLAN,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, magellan_serio_ids);
static struct serio_driver magellan_drv = {
.driver = {
.name = "magellan",
},
.description = DRIVER_DESC,
.id_table = magellan_serio_ids,
.interrupt = magellan_interrupt,
.connect = magellan_connect,
.disconnect = magellan_disconnect,
};
/*
* The functions for inserting/removing us as a module.
*/
static int __init magellan_init(void)
{
return serio_register_driver(&magellan_drv);
}
static void __exit magellan_exit(void)
{
serio_unregister_driver(&magellan_drv);
}
module_init(magellan_init);
module_exit(magellan_exit);