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/************************************************************************************
* include/nuttx/input/mouse.h
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/* The mouse driver exports a standard character driver interface. By
* convention, the mouse driver is registered as an input device at
* /dev/mouseN where N uniquely identifies the driver instance.
*
* This header file documents the generic interface that all NuttX
* mouse devices must conform. It adds standards and conventions on
* top of the standard character driver interface.
*/
#ifndef __INCLUDE_NUTTX_INPUT_MOUSE_H
#define __INCLUDE_NUTTX_INPUT_MOUSE_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
* Pre-Processor Definitions
************************************************************************************/
/* These definitions provide the meaning of all of the bits that may be
* reported in the struct mouse_report_s buttons.
*/
#define MOUSE_BUTTON_1 (1 << 0) /* True: Left mouse button pressed */
#define MOUSE_BUTTON_2 (1 << 1) /* True: Right mouse button pressed */
#define MOUSE_BUTTON_3 (1 << 2) /* True: Middle mouse button pressed */
/************************************************************************************
* Public Types
************************************************************************************/
/* This structure contains information about the current mouse button states and
* mouse position. Positional units are device specific and determined by mouse
* configuration settings.
*/
struct mouse_report_s
{
uint8_t buttons; /* See TOUCH_* definitions above */
/* Possibly padded with 1 byte here */
int16_t x; /* X coordinate of the mouse position */
int16_t y; /* Y coordinate of the mouse position */
#ifdef CONFIG_MOUSE_WHEEL
int16_t wheel; /* Mouse wheel position */
#endif
};
/************************************************************************************
* Public Data
************************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __INCLUDE_NUTTX_INPUT_MOUSE_H */
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