62 строки
1.5 KiB
C
62 строки
1.5 KiB
C
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/*
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* Driver for simulating a mouse on GPIO lines.
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*
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* Copyright (C) 2007 Atmel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _GPIO_MOUSE_H
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#define _GPIO_MOUSE_H
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#define GPIO_MOUSE_POLARITY_ACT_HIGH 0x00
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#define GPIO_MOUSE_POLARITY_ACT_LOW 0x01
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#define GPIO_MOUSE_PIN_UP 0
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#define GPIO_MOUSE_PIN_DOWN 1
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#define GPIO_MOUSE_PIN_LEFT 2
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#define GPIO_MOUSE_PIN_RIGHT 3
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#define GPIO_MOUSE_PIN_BLEFT 4
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#define GPIO_MOUSE_PIN_BMIDDLE 5
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#define GPIO_MOUSE_PIN_BRIGHT 6
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#define GPIO_MOUSE_PIN_MAX 7
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/**
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* struct gpio_mouse_platform_data
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* @scan_ms: integer in ms specifying the scan periode.
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* @polarity: Pin polarity, active high or low.
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* @up: GPIO line for up value.
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* @down: GPIO line for down value.
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* @left: GPIO line for left value.
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* @right: GPIO line for right value.
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* @bleft: GPIO line for left button.
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* @bmiddle: GPIO line for middle button.
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* @bright: GPIO line for right button.
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*
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* This struct must be added to the platform_device in the board code.
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* It is used by the gpio_mouse driver to setup GPIO lines and to
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* calculate mouse movement.
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*/
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struct gpio_mouse_platform_data {
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int scan_ms;
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int polarity;
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union {
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struct {
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int up;
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int down;
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int left;
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int right;
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int bleft;
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int bmiddle;
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int bright;
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};
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int pins[GPIO_MOUSE_PIN_MAX];
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};
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};
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#endif /* _GPIO_MOUSE_H */
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