67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2016, Freescale Semiconductor, Inc.
|
|
* Copyright 2016-2017 NXP
|
|
* All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef _FSL_FT5406_H_
|
|
#define _FSL_FT5406_H_
|
|
|
|
#include "fsl_common.h"
|
|
|
|
/*!
|
|
* @addtogroup ft5406
|
|
* @{
|
|
*/
|
|
|
|
/*******************************************************************************
|
|
* Definitions
|
|
******************************************************************************/
|
|
|
|
/*! @brief FT5406 I2C address. */
|
|
#define FT5406_I2C_ADDRESS (0x38)
|
|
|
|
/*! @brief FT5406 maximum number of simultaneously detected touches. */
|
|
#define FT5406_MAX_TOUCHES (5U)
|
|
|
|
/*! @brief FT5406 register address where touch data begin. */
|
|
#define FT5406_TOUCH_DATA_SUBADDR (1)
|
|
|
|
/*! @brief FT5406 raw touch data length. */
|
|
#define FT5406_TOUCH_DATA_LEN (0x20)
|
|
|
|
typedef enum _touch_event
|
|
{
|
|
kTouch_Down = 0, /*!< The state changed to touched. */
|
|
kTouch_Up = 1, /*!< The state changed to not touched. */
|
|
kTouch_Contact = 2, /*!< There is a continuous touch being detected. */
|
|
kTouch_Reserved = 3 /*!< No touch information available. */
|
|
} touch_event_t;
|
|
|
|
typedef struct _touch_point
|
|
{
|
|
touch_event_t TOUCH_EVENT; /*!< Indicates the state or event of the touch point. */
|
|
uint8_t TOUCH_ID; /*!< Id of the touch point. This numeric value stays constant between down and up event. */
|
|
uint16_t TOUCH_X; /*!< X coordinate of the touch point */
|
|
uint16_t TOUCH_Y; /*!< Y coordinate of the touch point */
|
|
} touch_point_t;
|
|
|
|
typedef struct _ft5406_handle
|
|
{
|
|
I2C_Type *base;
|
|
i2c_master_transfer_t xfer;
|
|
uint8_t touch_buf[FT5406_TOUCH_DATA_LEN];
|
|
} ft5406_handle_t;
|
|
|
|
status_t FT5406_Init(ft5406_handle_t *handle, I2C_Type *base);
|
|
|
|
status_t FT5406_Denit(ft5406_handle_t *handle);
|
|
|
|
status_t FT5406_GetSingleTouch(ft5406_handle_t *handle, touch_event_t *touch_event, int *touch_x, int *touch_y);
|
|
|
|
status_t FT5406_GetMultiTouch(ft5406_handle_t *handle, int *touch_count, touch_point_t touch_array[FT5406_MAX_TOUCHES]);
|
|
|
|
#endif
|