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/*
* 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
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