| Hans-Christian Egtvedt | 5f56550 | 2007-06-14 23:32:35 -0400 | [diff] [blame] | 1 | /* |
| 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 | */ |
| 42 | struct 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 */ |