11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * $Id: amijoy.c,v 1.13 2002/01/22 20:26:32 vojtech Exp $ 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (c) 1998-2001 Vojtech Pavlik 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds /* 81da177e4SLinus Torvalds * Driver for Amiga joysticks for Linux/m68k 91da177e4SLinus Torvalds */ 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds /* 121da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 131da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 141da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 151da177e4SLinus Torvalds * (at your option) any later version. 161da177e4SLinus Torvalds * 171da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 181da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 191da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 201da177e4SLinus Torvalds * GNU General Public License for more details. 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 231da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 241da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 251da177e4SLinus Torvalds * 261da177e4SLinus Torvalds * Should you need to contact me, the author, you can do so either by 271da177e4SLinus Torvalds * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 281da177e4SLinus Torvalds * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 291da177e4SLinus Torvalds */ 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds #include <linux/types.h> 321da177e4SLinus Torvalds #include <linux/errno.h> 331da177e4SLinus Torvalds #include <linux/kernel.h> 341da177e4SLinus Torvalds #include <linux/module.h> 351da177e4SLinus Torvalds #include <linux/moduleparam.h> 361da177e4SLinus Torvalds #include <linux/init.h> 371da177e4SLinus Torvalds #include <linux/input.h> 381da177e4SLinus Torvalds #include <linux/interrupt.h> 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds #include <asm/system.h> 411da177e4SLinus Torvalds #include <asm/amigahw.h> 421da177e4SLinus Torvalds #include <asm/amigaints.h> 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); 451da177e4SLinus Torvalds MODULE_DESCRIPTION("Driver for Amiga joysticks"); 461da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds static int amijoy[2] = { 0, 1 }; 491da177e4SLinus Torvalds module_param_array_named(map, amijoy, uint, NULL, 0); 501da177e4SLinus Torvalds MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)"); 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds __obsolete_setup("amijoy="); 531da177e4SLinus Torvalds 548b1a198bSDmitry Torokhov static int amijoy_used; 558b1a198bSDmitry Torokhov static DECLARE_MUTEX(amijoy_sem); 5617dd3f0fSDmitry Torokhov static struct input_dev *amijoy_dev[2]; 571da177e4SLinus Torvalds static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" }; 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds static irqreturn_t amijoy_interrupt(int irq, void *dummy, struct pt_regs *fp) 601da177e4SLinus Torvalds { 611da177e4SLinus Torvalds int i, data = 0, button = 0; 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds for (i = 0; i < 2; i++) 641da177e4SLinus Torvalds if (amijoy[i]) { 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds switch (i) { 67b4290a23SAl Viro case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break; 68b4290a23SAl Viro case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break; 691da177e4SLinus Torvalds } 701da177e4SLinus Torvalds 7117dd3f0fSDmitry Torokhov input_regs(amijoy_dev[i], fp); 721da177e4SLinus Torvalds 7317dd3f0fSDmitry Torokhov input_report_key(amijoy_dev[i], BTN_TRIGGER, button); 741da177e4SLinus Torvalds 7517dd3f0fSDmitry Torokhov input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1)); 761da177e4SLinus Torvalds data = ~(data ^ (data << 1)); 7717dd3f0fSDmitry Torokhov input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1)); 781da177e4SLinus Torvalds 7917dd3f0fSDmitry Torokhov input_sync(amijoy_dev[i]); 801da177e4SLinus Torvalds } 811da177e4SLinus Torvalds return IRQ_HANDLED; 821da177e4SLinus Torvalds } 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds static int amijoy_open(struct input_dev *dev) 851da177e4SLinus Torvalds { 868b1a198bSDmitry Torokhov int err; 871da177e4SLinus Torvalds 888b1a198bSDmitry Torokhov err = down_interruptible(&amijoy_sem); 898b1a198bSDmitry Torokhov if (err) 908b1a198bSDmitry Torokhov return err; 911da177e4SLinus Torvalds 928b1a198bSDmitry Torokhov if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) { 931da177e4SLinus Torvalds printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB); 948b1a198bSDmitry Torokhov err = -EBUSY; 958b1a198bSDmitry Torokhov goto out; 961da177e4SLinus Torvalds } 971da177e4SLinus Torvalds 988b1a198bSDmitry Torokhov amijoy_used++; 998b1a198bSDmitry Torokhov out: 1008b1a198bSDmitry Torokhov up(&amijoy_sem); 1018b1a198bSDmitry Torokhov return err; 1021da177e4SLinus Torvalds } 1031da177e4SLinus Torvalds 1041da177e4SLinus Torvalds static void amijoy_close(struct input_dev *dev) 1051da177e4SLinus Torvalds { 106a61caa85SGeert Uytterhoeven down(&amijoy_sem); 1078b1a198bSDmitry Torokhov if (!--amijoy_used) 1081da177e4SLinus Torvalds free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt); 1098b1a198bSDmitry Torokhov up(&amijoy_sem); 1101da177e4SLinus Torvalds } 1111da177e4SLinus Torvalds 1121da177e4SLinus Torvalds static int __init amijoy_init(void) 1131da177e4SLinus Torvalds { 1141da177e4SLinus Torvalds int i, j; 11517dd3f0fSDmitry Torokhov int err; 1161da177e4SLinus Torvalds 11717dd3f0fSDmitry Torokhov for (i = 0; i < 2; i++) { 11817dd3f0fSDmitry Torokhov if (!amijoy[i]) 11917dd3f0fSDmitry Torokhov continue; 12017dd3f0fSDmitry Torokhov 12117dd3f0fSDmitry Torokhov amijoy_dev[i] = input_allocate_device(); 12217dd3f0fSDmitry Torokhov if (!amijoy_dev[i]) { 12317dd3f0fSDmitry Torokhov err = -ENOMEM; 12417dd3f0fSDmitry Torokhov goto fail; 1251da177e4SLinus Torvalds } 1261da177e4SLinus Torvalds 12717dd3f0fSDmitry Torokhov if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) { 12817dd3f0fSDmitry Torokhov input_free_device(amijoy_dev[i]); 12917dd3f0fSDmitry Torokhov err = -EBUSY; 13017dd3f0fSDmitry Torokhov goto fail; 13117dd3f0fSDmitry Torokhov } 13217dd3f0fSDmitry Torokhov 13317dd3f0fSDmitry Torokhov amijoy_dev[i]->name = "Amiga joystick"; 13417dd3f0fSDmitry Torokhov amijoy_dev[i]->phys = amijoy_phys[i]; 13517dd3f0fSDmitry Torokhov amijoy_dev[i]->id.bustype = BUS_AMIGA; 13617dd3f0fSDmitry Torokhov amijoy_dev[i]->id.vendor = 0x0001; 13717dd3f0fSDmitry Torokhov amijoy_dev[i]->id.product = 0x0003; 13817dd3f0fSDmitry Torokhov amijoy_dev[i]->id.version = 0x0100; 13917dd3f0fSDmitry Torokhov 14017dd3f0fSDmitry Torokhov amijoy_dev[i]->open = amijoy_open; 14117dd3f0fSDmitry Torokhov amijoy_dev[i]->close = amijoy_close; 14217dd3f0fSDmitry Torokhov 14317dd3f0fSDmitry Torokhov amijoy_dev[i]->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); 14417dd3f0fSDmitry Torokhov amijoy_dev[i]->absbit[0] = BIT(ABS_X) | BIT(ABS_Y); 14517dd3f0fSDmitry Torokhov amijoy_dev[i]->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); 1461da177e4SLinus Torvalds for (j = 0; j < 2; j++) { 14717dd3f0fSDmitry Torokhov amijoy_dev[i]->absmin[ABS_X + j] = -1; 14817dd3f0fSDmitry Torokhov amijoy_dev[i]->absmax[ABS_X + j] = 1; 1491da177e4SLinus Torvalds } 1501da177e4SLinus Torvalds 15117dd3f0fSDmitry Torokhov input_register_device(amijoy_dev[i]); 1521da177e4SLinus Torvalds } 1531da177e4SLinus Torvalds return 0; 15417dd3f0fSDmitry Torokhov 15517dd3f0fSDmitry Torokhov fail: while (--i >= 0) 15617dd3f0fSDmitry Torokhov if (amijoy[i]) { 15717dd3f0fSDmitry Torokhov input_unregister_device(amijoy_dev[i]); 15817dd3f0fSDmitry Torokhov release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2); 15917dd3f0fSDmitry Torokhov } 16017dd3f0fSDmitry Torokhov return err; 1611da177e4SLinus Torvalds } 1621da177e4SLinus Torvalds 1631da177e4SLinus Torvalds static void __exit amijoy_exit(void) 1641da177e4SLinus Torvalds { 1651da177e4SLinus Torvalds int i; 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds for (i = 0; i < 2; i++) 1681da177e4SLinus Torvalds if (amijoy[i]) { 16917dd3f0fSDmitry Torokhov input_unregister_device(amijoy_dev[i]); 1701da177e4SLinus Torvalds release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2); 1711da177e4SLinus Torvalds } 1721da177e4SLinus Torvalds } 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds module_init(amijoy_init); 1751da177e4SLinus Torvalds module_exit(amijoy_exit); 176