Jenny Plunkett / Mbed OS LPCXpresso54608-Touch-Cursor-Example

NXP Touch Cursor example for LPCXpresso54608, modified for use with Mbed OS.

The tutorial for this example can be found here: https://os.mbed.com/blog/entry/How-to-LPCXpresso54608-touch-panel/

touchpanel/fsl_ft5406.h@0:c107a6f8c368, 2018-04-11 (annotated)

Committer:
jplunkett
Date:
Wed Apr 11 20:46:55 2018 +0000
Revision:
0:c107a6f8c368
Init

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jplunkett 0:c107a6f8c368 1 /*
jplunkett 0:c107a6f8c368 2 * The Clear BSD License
jplunkett 0:c107a6f8c368 3 * Copyright (c) 2016, Freescale Semiconductor, Inc.
jplunkett 0:c107a6f8c368 4 * Copyright 2016-2017 NXP
jplunkett 0:c107a6f8c368 5 * All rights reserved.
jplunkett 0:c107a6f8c368 6 *
jplunkett 0:c107a6f8c368 7 * Redistribution and use in source and binary forms, with or without modification,
jplunkett 0:c107a6f8c368 8 * are permitted (subject to the limitations in the disclaimer below) provided
jplunkett 0:c107a6f8c368 9 * that the following conditions are met:
jplunkett 0:c107a6f8c368 10 *
jplunkett 0:c107a6f8c368 11 * o Redistributions of source code must retain the above copyright notice, this list
jplunkett 0:c107a6f8c368 12 * of conditions and the following disclaimer.
jplunkett 0:c107a6f8c368 13 *
jplunkett 0:c107a6f8c368 14 * o Redistributions in binary form must reproduce the above copyright notice, this
jplunkett 0:c107a6f8c368 15 * list of conditions and the following disclaimer in the documentation and/or
jplunkett 0:c107a6f8c368 16 * other materials provided with the distribution.
jplunkett 0:c107a6f8c368 17 *
jplunkett 0:c107a6f8c368 18 * o Neither the name of the copyright holder nor the names of its
jplunkett 0:c107a6f8c368 19 * contributors may be used to endorse or promote products derived from this
jplunkett 0:c107a6f8c368 20 * software without specific prior written permission.
jplunkett 0:c107a6f8c368 21 *
jplunkett 0:c107a6f8c368 22 * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
jplunkett 0:c107a6f8c368 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
jplunkett 0:c107a6f8c368 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
jplunkett 0:c107a6f8c368 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
jplunkett 0:c107a6f8c368 26 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
jplunkett 0:c107a6f8c368 27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
jplunkett 0:c107a6f8c368 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
jplunkett 0:c107a6f8c368 29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
jplunkett 0:c107a6f8c368 30 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
jplunkett 0:c107a6f8c368 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
jplunkett 0:c107a6f8c368 32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
jplunkett 0:c107a6f8c368 33 */
jplunkett 0:c107a6f8c368 34
jplunkett 0:c107a6f8c368 35 #ifndef _FSL_FT5406_H_
jplunkett 0:c107a6f8c368 36 #define _FSL_FT5406_H_
jplunkett 0:c107a6f8c368 37
jplunkett 0:c107a6f8c368 38 #include "fsl_common.h"
jplunkett 0:c107a6f8c368 39 #include "fsl_i2c.h"
jplunkett 0:c107a6f8c368 40
jplunkett 0:c107a6f8c368 41 /*!
jplunkett 0:c107a6f8c368 42 * @addtogroup ft5406
jplunkett 0:c107a6f8c368 43 * @{
jplunkett 0:c107a6f8c368 44 */
jplunkett 0:c107a6f8c368 45
jplunkett 0:c107a6f8c368 46 /*******************************************************************************
jplunkett 0:c107a6f8c368 47 * Definitions
jplunkett 0:c107a6f8c368 48 ******************************************************************************/
jplunkett 0:c107a6f8c368 49
jplunkett 0:c107a6f8c368 50 /*! @brief FT5406 I2C address. */
jplunkett 0:c107a6f8c368 51 #define FT5406_I2C_ADDRESS (0x38)
jplunkett 0:c107a6f8c368 52
jplunkett 0:c107a6f8c368 53 /*! @brief FT5406 maximum number of simultaneously detected touches. */
jplunkett 0:c107a6f8c368 54 #define FT5406_MAX_TOUCHES (5U)
jplunkett 0:c107a6f8c368 55
jplunkett 0:c107a6f8c368 56 /*! @brief FT5406 register address where touch data begin. */
jplunkett 0:c107a6f8c368 57 #define FT5406_TOUCH_DATA_SUBADDR (1)
jplunkett 0:c107a6f8c368 58
jplunkett 0:c107a6f8c368 59 /*! @brief FT5406 raw touch data length. */
jplunkett 0:c107a6f8c368 60 #define FT5406_TOUCH_DATA_LEN (0x20)
jplunkett 0:c107a6f8c368 61
jplunkett 0:c107a6f8c368 62 typedef enum _touch_event
jplunkett 0:c107a6f8c368 63 {
jplunkett 0:c107a6f8c368 64 kTouch_Down = 0, /*!< The state changed to touched. */
jplunkett 0:c107a6f8c368 65 kTouch_Up = 1, /*!< The state changed to not touched. */
jplunkett 0:c107a6f8c368 66 kTouch_Contact = 2, /*!< There is a continuous touch being detected. */
jplunkett 0:c107a6f8c368 67 kTouch_Reserved = 3 /*!< No touch information available. */
jplunkett 0:c107a6f8c368 68 } touch_event_t;
jplunkett 0:c107a6f8c368 69
jplunkett 0:c107a6f8c368 70 typedef struct _touch_point
jplunkett 0:c107a6f8c368 71 {
jplunkett 0:c107a6f8c368 72 touch_event_t TOUCH_EVENT; /*!< Indicates the state or event of the touch point. */
jplunkett 0:c107a6f8c368 73 uint8_t TOUCH_ID; /*!< Id of the touch point. This numeric value stays constant between down and up event. */
jplunkett 0:c107a6f8c368 74 uint16_t TOUCH_X; /*!< X coordinate of the touch point */
jplunkett 0:c107a6f8c368 75 uint16_t TOUCH_Y; /*!< Y coordinate of the touch point */
jplunkett 0:c107a6f8c368 76 } touch_point_t;
jplunkett 0:c107a6f8c368 77
jplunkett 0:c107a6f8c368 78 typedef struct _ft5406_handle
jplunkett 0:c107a6f8c368 79 {
jplunkett 0:c107a6f8c368 80 I2C_Type *base;
jplunkett 0:c107a6f8c368 81 i2c_master_transfer_t xfer;
jplunkett 0:c107a6f8c368 82 uint8_t touch_buf[FT5406_TOUCH_DATA_LEN];
jplunkett 0:c107a6f8c368 83 } ft5406_handle_t;
jplunkett 0:c107a6f8c368 84
jplunkett 0:c107a6f8c368 85 status_t FT5406_Init(ft5406_handle_t *handle, I2C_Type *base);
jplunkett 0:c107a6f8c368 86
jplunkett 0:c107a6f8c368 87 status_t FT5406_Denit(ft5406_handle_t *handle);
jplunkett 0:c107a6f8c368 88
jplunkett 0:c107a6f8c368 89 status_t FT5406_GetSingleTouch(ft5406_handle_t *handle, touch_event_t *touch_event, int *touch_x, int *touch_y);
jplunkett 0:c107a6f8c368 90
jplunkett 0:c107a6f8c368 91 status_t FT5406_GetMultiTouch(ft5406_handle_t *handle, int *touch_count, touch_point_t touch_array[FT5406_MAX_TOUCHES]);
jplunkett 0:c107a6f8c368 92
jplunkett 0:c107a6f8c368 93 #endif