2 * Atari mouse driver for Linux/m68k
4 * Copyright (c) 2005 Michael Schmitz
7 * Amiga mouse driver for Linux/m68k
9 * Copyright (c) 2000-2002 Vojtech Pavlik
13 * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
14 * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
15 * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
16 * This driver only deals with handing key events off to the input layer.
18 * Largely based on the old:
20 * Atari Mouse Driver for Linux
21 * by Robert de Vries (robert@and.nl) 19Jul93
23 * 16 Nov 1994 Andreas Schwab
24 * Compatibility with busmouse
25 * Support for three button mouse (shamelessly stolen from MiNT)
26 * third button wired to one of the joystick directions on joystick 1
28 * 1996/02/11 Andreas Schwab
30 * Allow multiple open's
32 * Converted to use new generic busmouse code. 5 Apr 1998
33 * Russell King <rmk@arm.uk.linux.org>
38 * This program is free software; you can redistribute it and/or modify it
39 * under the terms of the GNU General Public License version 2 as published by
40 * the Free Software Foundation
43 #include <linux/module.h>
44 #include <linux/init.h>
45 #include <linux/input.h>
46 #include <linux/interrupt.h>
49 #include <asm/setup.h>
50 #include <asm/system.h>
51 #include <asm/uaccess.h>
52 #include <asm/atarihw.h>
53 #include <asm/atarikb.h>
54 #include <asm/atariints.h>
56 MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
57 MODULE_DESCRIPTION("Atari mouse driver");
58 MODULE_LICENSE("GPL");
60 static int mouse_threshold[2] = {2,2};
63 MODULE_PARM(mouse_threshold, "2i");
65 #ifdef FIXED_ATARI_JOYSTICK
66 extern int atari_mouse_buttons;
68 static int atamouse_used = 0;
70 static struct input_dev *atamouse_dev;
72 static void atamouse_interrupt(char *buf)
76 /* ikbd_mouse_disable(); */
78 buttons = (buf[0] & 1) | ((buf[0] & 2) << 1);
79 #ifdef FIXED_ATARI_JOYSTICK
80 buttons |= atari_mouse_buttons & 2;
81 atari_mouse_buttons = buttons;
83 /* ikbd_mouse_rel_pos(); */
85 /* only relative events get here */
89 input_report_rel(atamouse_dev, REL_X, dx);
90 input_report_rel(atamouse_dev, REL_Y, dy);
92 input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1);
93 input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2);
94 input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4);
96 input_sync(atamouse_dev);
101 static int atamouse_open(struct input_dev *dev)
106 #ifdef FIXED_ATARI_JOYSTICK
107 atari_mouse_buttons = 0;
110 ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]);
111 ikbd_mouse_rel_pos();
112 atari_input_mouse_interrupt_hook = atamouse_interrupt;
116 static void atamouse_close(struct input_dev *dev)
118 if (!--atamouse_used) {
119 ikbd_mouse_disable();
120 atari_mouse_interrupt_hook = NULL;
124 static int __init atamouse_init(void)
126 if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
129 if (!(atamouse_dev = input_allocate_device()))
132 if (!(atari_keyb_init()))
135 atamouse_dev->name = "Atari mouse";
136 atamouse_dev->phys = "atamouse/input0";
137 atamouse_dev->id.bustype = BUS_ATARI;
138 atamouse_dev->id.vendor = 0x0001;
139 atamouse_dev->id.product = 0x0002;
140 atamouse_dev->id.version = 0x0100;
142 atamouse_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
143 atamouse_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
144 atamouse_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
145 atamouse_dev->open = atamouse_open;
146 atamouse_dev->close = atamouse_close;
148 input_register_device(atamouse_dev);
150 printk(KERN_INFO "input: %s at keyboard ACIA\n", atamouse_dev->name);
154 static void __exit atamouse_exit(void)
156 input_unregister_device(atamouse_dev);
159 module_init(atamouse_init);
160 module_exit(atamouse_exit);