Release 4.11 drivers/input/joystick/amijoy.c

/*
 *  Copyright (c) 1998-2001 Vojtech Pavlik
 */

/*
 * Driver for Amiga joysticks for Linux/m68k
 */

/*
 * 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/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mutex.h>

#include <asm/amigahw.h>
#include <asm/amigaints.h>

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Driver for Amiga joysticks");
MODULE_LICENSE("GPL");


static int amijoy[2] = { 0, 1 };
module_param_array_named(map, amijoy, uint, NULL, 0);
MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)");


static int amijoy_used;
static DEFINE_MUTEX(amijoy_mutex);

static struct input_dev *amijoy_dev[2];

static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" };



static irqreturn_t amijoy_interrupt(int irq, void *dummy)
{
	int i, data = 0, button = 0;

	for (i = 0; i < 2; i++)
		if (amijoy[i]) {

			switch (i) {
				case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break;
				case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break;
			}

			input_report_key(amijoy_dev[i], BTN_TRIGGER, button);

			input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1));
			data = ~(data ^ (data << 1));
			input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1));

			input_sync(amijoy_dev[i]);
		}
	return IRQ_HANDLED;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
118
60.20%
1
16.67%
Vojtech Pavlik
64
32.65%
2
33.33%
Dmitry Torokhov
8
4.08%
1
16.67%
Geert Uytterhoeven
4
2.04%
1
16.67%
Al Viro
2
1.02%
1
16.67%
Total
196
100.00%
6
100.00%



static int amijoy_open(struct input_dev *dev)
{
	int err;

	err = mutex_lock_interruptible(&amijoy_mutex);
	if (err)
		return err;

	if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) {
		printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
		err = -EBUSY;
		goto out;
	}

	amijoy_used++;
out:
	mutex_unlock(&amijoy_mutex);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vojtech Pavlik
42
53.16%
1
20.00%
Dmitry Torokhov
28
35.44%
1
20.00%
Ingo Molnar
4
5.06%
1
20.00%
Linus Torvalds (pre-git)
3
3.80%
1
20.00%
Geert Uytterhoeven
2
2.53%
1
20.00%
Total
79
100.00%
5
100.00%



static void amijoy_close(struct input_dev *dev)
{
	mutex_lock(&amijoy_mutex);
	if (!--amijoy_used)
		free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt);
	mutex_unlock(&amijoy_mutex);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vojtech Pavlik
23
63.89%
1
33.33%
Dmitry Torokhov
9
25.00%
1
33.33%
Ingo Molnar
4
11.11%
1
33.33%
Total
36
100.00%
3
100.00%



static int __init amijoy_init(void)
{
	int i, j;
	int err;

	if (!MACH_IS_AMIGA)
		return -ENODEV;

	for (i = 0; i < 2; i++) {
		if (!amijoy[i])
			continue;

		amijoy_dev[i] = input_allocate_device();
		if (!amijoy_dev[i]) {
			err = -ENOMEM;
			goto fail;
		}

		if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) {
			input_free_device(amijoy_dev[i]);
			err = -EBUSY;
			goto fail;
		}

		amijoy_dev[i]->name = "Amiga joystick";
		amijoy_dev[i]->phys = amijoy_phys[i];
		amijoy_dev[i]->id.bustype = BUS_AMIGA;
		amijoy_dev[i]->id.vendor = 0x0001;
		amijoy_dev[i]->id.product = 0x0003;
		amijoy_dev[i]->id.version = 0x0100;

		amijoy_dev[i]->open = amijoy_open;
		amijoy_dev[i]->close = amijoy_close;

		amijoy_dev[i]->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
		amijoy_dev[i]->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
		amijoy_dev[i]->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
			BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
		for (j = 0; j < 2; j++) {
			input_set_abs_params(amijoy_dev[i], ABS_X + j,
					     -1, 1, 0, 0);
		}

		err = input_register_device(amijoy_dev[i]);
		if (err) {
			input_free_device(amijoy_dev[i]);
			goto fail;
		}
	}
	return 0;

 fail:	while (--i >= 0)
		if (amijoy[i]) {
			input_unregister_device(amijoy_dev[i]);
			release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
		}
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vojtech Pavlik
170
45.82%
1
9.09%
Dmitry Torokhov
160
43.13%
2
18.18%
Geert Uytterhoeven
11
2.96%
2
18.18%
Daniel Mack
10
2.70%
2
18.18%
Jiri Slaby
8
2.16%
1
9.09%
Linus Torvalds
7
1.89%
1
9.09%
Linus Torvalds (pre-git)
5
1.35%
2
18.18%
Total
371
100.00%
11
100.00%



static void __exit amijoy_exit(void)
{
	int i;

	for (i = 0; i < 2; i++)
		if (amijoy[i]) {
			input_unregister_device(amijoy_dev[i]);
			release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
		}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vojtech Pavlik
47
85.45%
1
25.00%
Linus Torvalds
5
9.09%
1
25.00%
Dmitry Torokhov
2
3.64%
1
25.00%
Geert Uytterhoeven
1
1.82%
1
25.00%
Total
55
100.00%
4
100.00%


module_init(amijoy_init);

module_exit(amijoy_exit);
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Vojtech Pavlik
377
43.79%
2
9.09%
Dmitry Torokhov
231
26.83%
5
22.73%
Linus Torvalds (pre-git)
177
20.56%
2
9.09%
Geert Uytterhoeven
24
2.79%
4
18.18%
Linus Torvalds
17
1.97%
2
9.09%
Ingo Molnar
13
1.51%
1
4.55%
Daniel Mack
10
1.16%
2
9.09%
Jiri Slaby
8
0.93%
1
4.55%
Al Viro
2
0.23%
1
4.55%
Rusty Russell
1
0.12%
1
4.55%
Adrian Bunk
1
0.12%
1
4.55%
Total
861
100.00%
22
100.00%
Directory: drivers/input/joystick

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