]>
Commit | Line | Data |
---|---|---|
c04cb856 MS |
1 | /* |
2 | * Atari mouse driver for Linux/m68k | |
3 | * | |
4 | * Copyright (c) 2005 Michael Schmitz | |
5 | * | |
6 | * Based on: | |
7 | * Amiga mouse driver for Linux/m68k | |
8 | * | |
9 | * Copyright (c) 2000-2002 Vojtech Pavlik | |
10 | * | |
11 | */ | |
12 | /* | |
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. | |
17 | * | |
18 | * Largely based on the old: | |
19 | * | |
20 | * Atari Mouse Driver for Linux | |
21 | * by Robert de Vries (robert@and.nl) 19Jul93 | |
22 | * | |
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 | |
27 | * | |
28 | * 1996/02/11 Andreas Schwab | |
29 | * Module support | |
30 | * Allow multiple open's | |
31 | * | |
32 | * Converted to use new generic busmouse code. 5 Apr 1998 | |
33 | * Russell King <rmk@arm.uk.linux.org> | |
34 | */ | |
35 | ||
36 | ||
37 | /* | |
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 | |
41 | */ | |
42 | ||
43 | #include <linux/module.h> | |
44 | #include <linux/init.h> | |
45 | #include <linux/input.h> | |
46 | #include <linux/interrupt.h> | |
47 | ||
48 | #include <asm/irq.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> | |
55 | ||
56 | MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>"); | |
57 | MODULE_DESCRIPTION("Atari mouse driver"); | |
58 | MODULE_LICENSE("GPL"); | |
59 | ||
60 | static int mouse_threshold[2] = {2,2}; | |
61 | ||
62 | #ifdef __MODULE__ | |
63 | MODULE_PARM(mouse_threshold, "2i"); | |
64 | #endif | |
65 | #ifdef FIXED_ATARI_JOYSTICK | |
66 | extern int atari_mouse_buttons; | |
67 | #endif | |
68 | static int atamouse_used = 0; | |
69 | ||
70 | static struct input_dev *atamouse_dev; | |
71 | ||
72 | static void atamouse_interrupt(char *buf) | |
73 | { | |
74 | int buttons, dx, dy; | |
75 | ||
76 | /* ikbd_mouse_disable(); */ | |
77 | ||
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; | |
82 | #endif | |
83 | /* ikbd_mouse_rel_pos(); */ | |
84 | ||
85 | /* only relative events get here */ | |
86 | dx = buf[1]; | |
87 | dy = -buf[2]; | |
88 | ||
89 | input_report_rel(atamouse_dev, REL_X, dx); | |
90 | input_report_rel(atamouse_dev, REL_Y, dy); | |
91 | ||
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); | |
95 | ||
96 | input_sync(atamouse_dev); | |
97 | ||
98 | return; | |
99 | } | |
100 | ||
101 | static int atamouse_open(struct input_dev *dev) | |
102 | { | |
103 | if (atamouse_used++) | |
104 | return 0; | |
105 | ||
106 | #ifdef FIXED_ATARI_JOYSTICK | |
107 | atari_mouse_buttons = 0; | |
108 | #endif | |
109 | ikbd_mouse_y0_top(); | |
110 | ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]); | |
111 | ikbd_mouse_rel_pos(); | |
112 | atari_input_mouse_interrupt_hook = atamouse_interrupt; | |
113 | return 0; | |
114 | } | |
115 | ||
116 | static void atamouse_close(struct input_dev *dev) | |
117 | { | |
118 | if (!--atamouse_used) { | |
119 | ikbd_mouse_disable(); | |
120 | atari_mouse_interrupt_hook = NULL; | |
121 | } | |
122 | } | |
123 | ||
124 | static int __init atamouse_init(void) | |
125 | { | |
126 | if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) | |
127 | return -ENODEV; | |
128 | ||
129 | if (!(atamouse_dev = input_allocate_device())) | |
130 | return -ENOMEM; | |
131 | ||
132 | if (!(atari_keyb_init())) | |
133 | return -ENODEV; | |
134 | ||
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; | |
141 | ||
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; | |
147 | ||
148 | input_register_device(atamouse_dev); | |
149 | ||
150 | printk(KERN_INFO "input: %s at keyboard ACIA\n", atamouse_dev->name); | |
151 | return 0; | |
152 | } | |
153 | ||
154 | static void __exit atamouse_exit(void) | |
155 | { | |
156 | input_unregister_device(atamouse_dev); | |
157 | } | |
158 | ||
159 | module_init(atamouse_init); | |
160 | module_exit(atamouse_exit); |