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Hans-Christian Egtvedt5f565502007-06-14 23:32:35 -04001/*
2 * Driver for simulating a mouse on GPIO lines.
3 *
4 * Copyright (C) 2007 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef _GPIO_MOUSE_H
12#define _GPIO_MOUSE_H
13
14#define GPIO_MOUSE_POLARITY_ACT_HIGH 0x00
15#define GPIO_MOUSE_POLARITY_ACT_LOW 0x01
16
17#define GPIO_MOUSE_PIN_UP 0
18#define GPIO_MOUSE_PIN_DOWN 1
19#define GPIO_MOUSE_PIN_LEFT 2
20#define GPIO_MOUSE_PIN_RIGHT 3
21#define GPIO_MOUSE_PIN_BLEFT 4
22#define GPIO_MOUSE_PIN_BMIDDLE 5
23#define GPIO_MOUSE_PIN_BRIGHT 6
24#define GPIO_MOUSE_PIN_MAX 7
25
26/**
27 * struct gpio_mouse_platform_data
28 * @scan_ms: integer in ms specifying the scan periode.
29 * @polarity: Pin polarity, active high or low.
30 * @up: GPIO line for up value.
31 * @down: GPIO line for down value.
32 * @left: GPIO line for left value.
33 * @right: GPIO line for right value.
34 * @bleft: GPIO line for left button.
35 * @bmiddle: GPIO line for middle button.
36 * @bright: GPIO line for right button.
37 *
38 * This struct must be added to the platform_device in the board code.
39 * It is used by the gpio_mouse driver to setup GPIO lines and to
40 * calculate mouse movement.
41 */
42struct gpio_mouse_platform_data {
43 int scan_ms;
44 int polarity;
45
46 union {
47 struct {
48 int up;
49 int down;
50 int left;
51 int right;
52
53 int bleft;
54 int bmiddle;
55 int bright;
56 };
57 int pins[GPIO_MOUSE_PIN_MAX];
58 };
59};
60
61#endif /* _GPIO_MOUSE_H */