nuttx-apps/examples/lvgldemo/tp.h

145 lines
5.3 KiB
C

/****************************************************************************
* apps/examples/lvgldemo/tp.h
*
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
* Author: Gábor Kiss-Vámosi <kisvegabor@gmail.com>
*
* 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.
*
****************************************************************************/
#ifndef __APPS_EXAMPLES_LVGLDEMO_TP_H
#define __APPS_EXAMPLES_LVGLDEMO_TP_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <lvgl/lvgl.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* CONFIG_EXAMPLES_LGVLDEMO_MINOR - The minor device number. Minor=N
* corresponds to touchscreen device /dev/input0. Note this value must
* with CONFIG_EXAMPLES_LGVLDEMO_DEVPATH. Default 0.
* CONFIG_EXAMPLES_LGVLDEMO_DEVPATH - The path to the touchscreen
* device. This must be consistent with CONFIG_EXAMPLES_LGVLDEMO_MINOR.
* Default: "/dev/input0"
* CONFIG_EXAMPLES_LGVLDEMO_MOUSE - The touchscreen test can also be
* configured to work with a mouse driver by setting this option.
*/
#if !defined(CONFIG_INPUT_TOUCHSCREEN) && !defined(CONFIG_INPUT_MOUSE)
# error "Input device support is not enabled (CONFIG_INPUT_TOUCHSCREEN || CONFIG_INPUT_MOUSE)"
#endif
#ifndef CONFIG_EXAMPLES_LGVLDEMO_MINOR
# undef CONFIG_EXAMPLES_LGVLDEMO_DEVPATH
# define CONFIG_EXAMPLES_LGVLDEMO_MINOR 0
# ifdef CONFIG_EXAMPLES_LGVLDEMO_MOUSE
# define CONFIG_EXAMPLES_LGVLDEMO_DEVPATH "/dev/mouse0"
# else
# define CONFIG_EXAMPLES_LGVLDEMO_DEVPATH "/dev/input0"
# endif
#endif
#ifndef CONFIG_EXAMPLES_LGVLDEMO_DEVPATH
# undef CONFIG_EXAMPLES_LGVLDEMO_MINOR
# define CONFIG_EXAMPLES_LGVLDEMO_MINOR 0
# ifdef CONFIG_EXAMPLES_LGVLDEMO_MOUSE
# define CONFIG_EXAMPLES_LGVLDEMO_DEVPATH "/dev/mouse0"
# else
# define CONFIG_EXAMPLES_LGVLDEMO_DEVPATH "/dev/input0"
# endif
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: tp_init
*
* Description:
* Initialize The Touch pad
*
* Input Parameters:
* None
*
* Returned Value:
* Zero (OK) on success; a positive error code on failure.
*
****************************************************************************/
int tp_init(void);
/****************************************************************************
* Name: tp_read
*
* Description:
* Read a TP data and store in 'data' argument
*
* Input Parameters:
* indev_drv - Input device handler
* data - Store the x, y and state information here
*
* Returned Value:
* false: no more data to read; true: there are more data to read.
*
****************************************************************************/
bool tp_read(FAR struct _lv_indev_drv_t *indev_drv,
FAR lv_indev_data_t *data);
/****************************************************************************
* Name: tp_read
*
* Description:
* Set calibration data
*
* Input Parameters:
* ul - Upper left hand corner TP value
* ur - Upper right hand corner TP value
* lr - Lower right hand corner TP value
* ll - Lower left hand corner TP value
*
* Returned Value:
* None
*
****************************************************************************/
void tp_set_cal_values(FAR lv_point_t *ul, FAR lv_point_t *ur,
FAR lv_point_t *lr, FAR lv_point_t *ll);
#endif /* __APPS_EXAMPLES_LVGLDEMO_TP_H */