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> | |
c04cb856 MS |
50 | #include <asm/uaccess.h> |
51 | #include <asm/atarihw.h> | |
52 | #include <asm/atarikb.h> | |
53 | #include <asm/atariints.h> | |
54 | ||
55 | MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>"); | |
56 | MODULE_DESCRIPTION("Atari mouse driver"); | |
57 | MODULE_LICENSE("GPL"); | |
58 | ||
82547e90 DT |
59 | static int mouse_threshold[2] = {2, 2}; |
60 | module_param_array(mouse_threshold, int, NULL, 0); | |
c04cb856 | 61 | |
c04cb856 MS |
62 | #ifdef FIXED_ATARI_JOYSTICK |
63 | extern int atari_mouse_buttons; | |
64 | #endif | |
c04cb856 MS |
65 | |
66 | static struct input_dev *atamouse_dev; | |
67 | ||
68 | static void atamouse_interrupt(char *buf) | |
69 | { | |
70 | int buttons, dx, dy; | |
71 | ||
c04cb856 MS |
72 | buttons = (buf[0] & 1) | ((buf[0] & 2) << 1); |
73 | #ifdef FIXED_ATARI_JOYSTICK | |
74 | buttons |= atari_mouse_buttons & 2; | |
75 | atari_mouse_buttons = buttons; | |
76 | #endif | |
c04cb856 MS |
77 | |
78 | /* only relative events get here */ | |
659e6ed5 GU |
79 | dx = buf[1]; |
80 | dy = buf[2]; | |
c04cb856 MS |
81 | |
82 | input_report_rel(atamouse_dev, REL_X, dx); | |
83 | input_report_rel(atamouse_dev, REL_Y, dy); | |
84 | ||
659e6ed5 | 85 | input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x4); |
c04cb856 | 86 | input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); |
659e6ed5 | 87 | input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x1); |
c04cb856 MS |
88 | |
89 | input_sync(atamouse_dev); | |
90 | ||
91 | return; | |
92 | } | |
93 | ||
94 | static int atamouse_open(struct input_dev *dev) | |
95 | { | |
c04cb856 MS |
96 | #ifdef FIXED_ATARI_JOYSTICK |
97 | atari_mouse_buttons = 0; | |
98 | #endif | |
99 | ikbd_mouse_y0_top(); | |
100 | ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]); | |
101 | ikbd_mouse_rel_pos(); | |
102 | atari_input_mouse_interrupt_hook = atamouse_interrupt; | |
82547e90 | 103 | |
c04cb856 MS |
104 | return 0; |
105 | } | |
106 | ||
107 | static void atamouse_close(struct input_dev *dev) | |
108 | { | |
82547e90 | 109 | ikbd_mouse_disable(); |
7786908c | 110 | atari_input_mouse_interrupt_hook = NULL; |
c04cb856 MS |
111 | } |
112 | ||
113 | static int __init atamouse_init(void) | |
114 | { | |
82547e90 DT |
115 | int error; |
116 | ||
c04cb856 MS |
117 | if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) |
118 | return -ENODEV; | |
119 | ||
186f200a MS |
120 | error = atari_keyb_init(); |
121 | if (error) | |
122 | return error; | |
c04cb856 | 123 | |
6615c5b2 GU |
124 | atamouse_dev = input_allocate_device(); |
125 | if (!atamouse_dev) | |
126 | return -ENOMEM; | |
127 | ||
c04cb856 MS |
128 | atamouse_dev->name = "Atari mouse"; |
129 | atamouse_dev->phys = "atamouse/input0"; | |
6615c5b2 | 130 | atamouse_dev->id.bustype = BUS_HOST; |
c04cb856 MS |
131 | atamouse_dev->id.vendor = 0x0001; |
132 | atamouse_dev->id.product = 0x0002; | |
133 | atamouse_dev->id.version = 0x0100; | |
134 | ||
7b19ada2 JS |
135 | atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
136 | atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
137 | atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) | | |
138 | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
82547e90 | 139 | |
c04cb856 MS |
140 | atamouse_dev->open = atamouse_open; |
141 | atamouse_dev->close = atamouse_close; | |
142 | ||
82547e90 DT |
143 | error = input_register_device(atamouse_dev); |
144 | if (error) { | |
6615c5b2 | 145 | input_free_device(atamouse_dev); |
82547e90 | 146 | return error; |
6615c5b2 | 147 | } |
c04cb856 | 148 | |
c04cb856 MS |
149 | return 0; |
150 | } | |
151 | ||
152 | static void __exit atamouse_exit(void) | |
153 | { | |
154 | input_unregister_device(atamouse_dev); | |
155 | } | |
156 | ||
157 | module_init(atamouse_init); | |
158 | module_exit(atamouse_exit); |