179909ecaf
I do not think Vojtech wants snail mail these days (and he mentioned that nobody has ever sent him snail mail), and the address is not even valid anymore, so let's remove snail-mail instructions from the sources. Acked-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
172 lines
4.3 KiB
C
172 lines
4.3 KiB
C
/*
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* Copyright (c) 1998-2001 Vojtech Pavlik
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*/
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/*
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* Driver for Amiga joysticks for Linux/m68k
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/mutex.h>
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#include <asm/amigahw.h>
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#include <asm/amigaints.h>
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("Driver for Amiga joysticks");
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MODULE_LICENSE("GPL");
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static int amijoy[2] = { 0, 1 };
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module_param_array_named(map, amijoy, uint, NULL, 0);
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MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)");
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static int amijoy_used;
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static DEFINE_MUTEX(amijoy_mutex);
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static struct input_dev *amijoy_dev[2];
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static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" };
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static irqreturn_t amijoy_interrupt(int irq, void *dummy)
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{
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int i, data = 0, button = 0;
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for (i = 0; i < 2; i++)
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if (amijoy[i]) {
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switch (i) {
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case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break;
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case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break;
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}
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input_report_key(amijoy_dev[i], BTN_TRIGGER, button);
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input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1));
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data = ~(data ^ (data << 1));
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input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1));
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input_sync(amijoy_dev[i]);
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}
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return IRQ_HANDLED;
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}
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static int amijoy_open(struct input_dev *dev)
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{
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int err;
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err = mutex_lock_interruptible(&amijoy_mutex);
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if (err)
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return err;
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if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) {
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printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
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err = -EBUSY;
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goto out;
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}
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amijoy_used++;
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out:
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mutex_unlock(&amijoy_mutex);
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return err;
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}
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static void amijoy_close(struct input_dev *dev)
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{
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mutex_lock(&amijoy_mutex);
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if (!--amijoy_used)
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free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt);
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mutex_unlock(&amijoy_mutex);
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}
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static int __init amijoy_init(void)
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{
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int i, j;
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int err;
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if (!MACH_IS_AMIGA)
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return -ENODEV;
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for (i = 0; i < 2; i++) {
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if (!amijoy[i])
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continue;
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amijoy_dev[i] = input_allocate_device();
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if (!amijoy_dev[i]) {
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err = -ENOMEM;
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goto fail;
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}
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if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) {
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input_free_device(amijoy_dev[i]);
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err = -EBUSY;
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goto fail;
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}
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amijoy_dev[i]->name = "Amiga joystick";
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amijoy_dev[i]->phys = amijoy_phys[i];
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amijoy_dev[i]->id.bustype = BUS_AMIGA;
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amijoy_dev[i]->id.vendor = 0x0001;
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amijoy_dev[i]->id.product = 0x0003;
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amijoy_dev[i]->id.version = 0x0100;
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amijoy_dev[i]->open = amijoy_open;
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amijoy_dev[i]->close = amijoy_close;
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amijoy_dev[i]->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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amijoy_dev[i]->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
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amijoy_dev[i]->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
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BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
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for (j = 0; j < 2; j++) {
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input_set_abs_params(amijoy_dev[i], ABS_X + j,
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-1, 1, 0, 0);
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}
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err = input_register_device(amijoy_dev[i]);
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if (err) {
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input_free_device(amijoy_dev[i]);
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goto fail;
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}
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}
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return 0;
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fail: while (--i >= 0)
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if (amijoy[i]) {
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input_unregister_device(amijoy_dev[i]);
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release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
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}
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return err;
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}
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static void __exit amijoy_exit(void)
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{
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int i;
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for (i = 0; i < 2; i++)
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if (amijoy[i]) {
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input_unregister_device(amijoy_dev[i]);
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release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
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}
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}
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module_init(amijoy_init);
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module_exit(amijoy_exit);
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