1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
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
56MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
57MODULE_DESCRIPTION("Atari mouse driver");
58MODULE_LICENSE("GPL");
59
60static int mouse_threshold[2] = {2, 2};
61module_param_array(mouse_threshold, int, NULL, 0);
62
63#ifdef FIXED_ATARI_JOYSTICK
64extern int atari_mouse_buttons;
65#endif
66
67static struct input_dev *atamouse_dev;
68
69static void atamouse_interrupt(char *buf)
70{
71 int buttons, dx, dy;
72
73 buttons = (buf[0] & 1) | ((buf[0] & 2) << 1);
74#ifdef FIXED_ATARI_JOYSTICK
75 buttons |= atari_mouse_buttons & 2;
76 atari_mouse_buttons = buttons;
77#endif
78
79
80 dx = buf[1];
81 dy = -buf[2];
82
83 input_report_rel(atamouse_dev, REL_X, dx);
84 input_report_rel(atamouse_dev, REL_Y, dy);
85
86 input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1);
87 input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2);
88 input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4);
89
90 input_sync(atamouse_dev);
91
92 return;
93}
94
95static int atamouse_open(struct input_dev *dev)
96{
97#ifdef FIXED_ATARI_JOYSTICK
98 atari_mouse_buttons = 0;
99#endif
100 ikbd_mouse_y0_top();
101 ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]);
102 ikbd_mouse_rel_pos();
103 atari_input_mouse_interrupt_hook = atamouse_interrupt;
104
105 return 0;
106}
107
108static void atamouse_close(struct input_dev *dev)
109{
110 ikbd_mouse_disable();
111 atari_mouse_interrupt_hook = NULL;
112}
113
114static int __init atamouse_init(void)
115{
116 int error;
117
118 if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
119 return -ENODEV;
120
121 if (!atari_keyb_init())
122 return -ENODEV;
123
124 atamouse_dev = input_allocate_device();
125 if (!atamouse_dev)
126 return -ENOMEM;
127
128 atamouse_dev->name = "Atari mouse";
129 atamouse_dev->phys = "atamouse/input0";
130 atamouse_dev->id.bustype = BUS_HOST;
131 atamouse_dev->id.vendor = 0x0001;
132 atamouse_dev->id.product = 0x0002;
133 atamouse_dev->id.version = 0x0100;
134
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);
139
140 atamouse_dev->open = atamouse_open;
141 atamouse_dev->close = atamouse_close;
142
143 error = input_register_device(atamouse_dev);
144 if (error) {
145 input_free_device(atamouse_dev);
146 return error;
147 }
148
149 return 0;
150}
151
152static void __exit atamouse_exit(void)
153{
154 input_unregister_device(atamouse_dev);
155}
156
157module_init(atamouse_init);
158module_exit(atamouse_exit);
159