NXP / Mbed OS rt1050_emwin_gui_demo

RT1050 GUI demo using emWin library

source/fsl_ft5406_rt.c@0:dd702039127a, 2018-09-20 (annotated)

Committer:
alejandroRL
Date:
Thu Sep 20 19:16:34 2018 +0000
Revision:
0:dd702039127a
emWin GUI Demo for RT1050

Who changed what in which revision?

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alejandroRL 0:dd702039127a 1 /*
alejandroRL 0:dd702039127a 2 * The Clear BSD License
alejandroRL 0:dd702039127a 3 * Copyright (c) 2016, Freescale Semiconductor, Inc.
alejandroRL 0:dd702039127a 4 * Copyright 2016-2017 NXP
alejandroRL 0:dd702039127a 5 * All rights reserved.
alejandroRL 0:dd702039127a 6 *
alejandroRL 0:dd702039127a 7 * Redistribution and use in source and binary forms, with or without modification,
alejandroRL 0:dd702039127a 8 * are permitted (subject to the limitations in the disclaimer below) provided
alejandroRL 0:dd702039127a 9 * that the following conditions are met:
alejandroRL 0:dd702039127a 10 *
alejandroRL 0:dd702039127a 11 * o Redistributions of source code must retain the above copyright notice, this list
alejandroRL 0:dd702039127a 12 * of conditions and the following disclaimer.
alejandroRL 0:dd702039127a 13 *
alejandroRL 0:dd702039127a 14 * o Redistributions in binary form must reproduce the above copyright notice, this
alejandroRL 0:dd702039127a 15 * list of conditions and the following disclaimer in the documentation and/or
alejandroRL 0:dd702039127a 16 * other materials provided with the distribution.
alejandroRL 0:dd702039127a 17 *
alejandroRL 0:dd702039127a 18 * o Neither the name of the copyright holder nor the names of its
alejandroRL 0:dd702039127a 19 * contributors may be used to endorse or promote products derived from this
alejandroRL 0:dd702039127a 20 * software without specific prior written permission.
alejandroRL 0:dd702039127a 21 *
alejandroRL 0:dd702039127a 22 * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
alejandroRL 0:dd702039127a 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
alejandroRL 0:dd702039127a 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
alejandroRL 0:dd702039127a 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
alejandroRL 0:dd702039127a 26 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
alejandroRL 0:dd702039127a 27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
alejandroRL 0:dd702039127a 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
alejandroRL 0:dd702039127a 29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
alejandroRL 0:dd702039127a 30 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
alejandroRL 0:dd702039127a 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
alejandroRL 0:dd702039127a 32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
alejandroRL 0:dd702039127a 33 */
alejandroRL 0:dd702039127a 34
alejandroRL 0:dd702039127a 35 #include "fsl_common.h"
alejandroRL 0:dd702039127a 36 #include "fsl_lpi2c.h"
alejandroRL 0:dd702039127a 37 #include "fsl_ft5406_rt.h"
alejandroRL 0:dd702039127a 38
alejandroRL 0:dd702039127a 39 typedef struct _ft5406_rt_touch_point
alejandroRL 0:dd702039127a 40 {
alejandroRL 0:dd702039127a 41 uint8_t XH;
alejandroRL 0:dd702039127a 42 uint8_t XL;
alejandroRL 0:dd702039127a 43 uint8_t YH;
alejandroRL 0:dd702039127a 44 uint8_t YL;
alejandroRL 0:dd702039127a 45 uint8_t RESERVED[2];
alejandroRL 0:dd702039127a 46 } ft5406_rt_touch_point_t;
alejandroRL 0:dd702039127a 47
alejandroRL 0:dd702039127a 48 typedef struct _ft5406_rt_touch_data
alejandroRL 0:dd702039127a 49 {
alejandroRL 0:dd702039127a 50 uint8_t GEST_ID;
alejandroRL 0:dd702039127a 51 uint8_t TD_STATUS;
alejandroRL 0:dd702039127a 52 ft5406_rt_touch_point_t TOUCH[FT5406_RT_MAX_TOUCHES];
alejandroRL 0:dd702039127a 53 } ft5406_rt_touch_data_t;
alejandroRL 0:dd702039127a 54
alejandroRL 0:dd702039127a 55 #define TOUCH_POINT_GET_EVENT(T) ((touch_event_t)((T).XH >> 6))
alejandroRL 0:dd702039127a 56 #define TOUCH_POINT_GET_ID(T) ((T).YH >> 4)
alejandroRL 0:dd702039127a 57 #define TOUCH_POINT_GET_X(T) ((((T).XH & 0x0f) << 8) | (T).XL)
alejandroRL 0:dd702039127a 58 #define TOUCH_POINT_GET_Y(T) ((((T).YH & 0x0f) << 8) | (T).YL)
alejandroRL 0:dd702039127a 59
alejandroRL 0:dd702039127a 60 status_t FT5406_RT_Init(ft5406_rt_handle_t *handle, LPI2C_Type *base)
alejandroRL 0:dd702039127a 61 {
alejandroRL 0:dd702039127a 62 lpi2c_master_transfer_t *xfer = &(handle->xfer);
alejandroRL 0:dd702039127a 63 status_t status;
alejandroRL 0:dd702039127a 64 uint8_t mode;
alejandroRL 0:dd702039127a 65
alejandroRL 0:dd702039127a 66 assert(handle);
alejandroRL 0:dd702039127a 67 assert(base);
alejandroRL 0:dd702039127a 68
alejandroRL 0:dd702039127a 69 if (!handle || !base)
alejandroRL 0:dd702039127a 70 {
alejandroRL 0:dd702039127a 71 return kStatus_InvalidArgument;
alejandroRL 0:dd702039127a 72 }
alejandroRL 0:dd702039127a 73
alejandroRL 0:dd702039127a 74 handle->base = base;
alejandroRL 0:dd702039127a 75
alejandroRL 0:dd702039127a 76 /* clear transfer structure and buffer */
alejandroRL 0:dd702039127a 77 memset(xfer, 0, sizeof(*xfer));
alejandroRL 0:dd702039127a 78 memset(handle->touch_buf, 0, FT5406_RT_TOUCH_DATA_LEN);
alejandroRL 0:dd702039127a 79
alejandroRL 0:dd702039127a 80 /* set device mode to normal operation */
alejandroRL 0:dd702039127a 81 mode = 0;
alejandroRL 0:dd702039127a 82 xfer->slaveAddress = FT5406_RT_I2C_ADDRESS;
alejandroRL 0:dd702039127a 83 xfer->direction = kLPI2C_Write;
alejandroRL 0:dd702039127a 84 xfer->subaddress = 0;
alejandroRL 0:dd702039127a 85 xfer->subaddressSize = 1;
alejandroRL 0:dd702039127a 86 xfer->data = &mode;
alejandroRL 0:dd702039127a 87 xfer->dataSize = 1;
alejandroRL 0:dd702039127a 88 xfer->flags = kLPI2C_TransferDefaultFlag;
alejandroRL 0:dd702039127a 89
alejandroRL 0:dd702039127a 90 status = LPI2C_MasterTransferBlocking(handle->base, &handle->xfer);
alejandroRL 0:dd702039127a 91
alejandroRL 0:dd702039127a 92 /* prepare transfer structure for reading touch data */
alejandroRL 0:dd702039127a 93 xfer->slaveAddress = FT5406_RT_I2C_ADDRESS;
alejandroRL 0:dd702039127a 94 xfer->direction = kLPI2C_Read;
alejandroRL 0:dd702039127a 95 xfer->subaddress = 1;
alejandroRL 0:dd702039127a 96 xfer->subaddressSize = 1;
alejandroRL 0:dd702039127a 97 xfer->data = handle->touch_buf;
alejandroRL 0:dd702039127a 98 xfer->dataSize = FT5406_RT_TOUCH_DATA_LEN;
alejandroRL 0:dd702039127a 99 xfer->flags = kLPI2C_TransferDefaultFlag;
alejandroRL 0:dd702039127a 100
alejandroRL 0:dd702039127a 101 return status;
alejandroRL 0:dd702039127a 102 }
alejandroRL 0:dd702039127a 103
alejandroRL 0:dd702039127a 104 status_t FT5406_RT_Denit(ft5406_rt_handle_t *handle)
alejandroRL 0:dd702039127a 105 {
alejandroRL 0:dd702039127a 106 assert(handle);
alejandroRL 0:dd702039127a 107
alejandroRL 0:dd702039127a 108 if (!handle)
alejandroRL 0:dd702039127a 109 {
alejandroRL 0:dd702039127a 110 return kStatus_InvalidArgument;
alejandroRL 0:dd702039127a 111 }
alejandroRL 0:dd702039127a 112
alejandroRL 0:dd702039127a 113 handle->base = NULL;
alejandroRL 0:dd702039127a 114 return kStatus_Success;
alejandroRL 0:dd702039127a 115 }
alejandroRL 0:dd702039127a 116
alejandroRL 0:dd702039127a 117 status_t FT5406_RT_ReadTouchData(ft5406_rt_handle_t *handle)
alejandroRL 0:dd702039127a 118 {
alejandroRL 0:dd702039127a 119 assert(handle);
alejandroRL 0:dd702039127a 120
alejandroRL 0:dd702039127a 121 if (!handle)
alejandroRL 0:dd702039127a 122 {
alejandroRL 0:dd702039127a 123 return kStatus_InvalidArgument;
alejandroRL 0:dd702039127a 124 }
alejandroRL 0:dd702039127a 125
alejandroRL 0:dd702039127a 126 return LPI2C_MasterTransferBlocking(handle->base, &handle->xfer);
alejandroRL 0:dd702039127a 127 }
alejandroRL 0:dd702039127a 128
alejandroRL 0:dd702039127a 129 status_t FT5406_RT_GetSingleTouch(ft5406_rt_handle_t *handle, touch_event_t *touch_event, int *touch_x, int *touch_y)
alejandroRL 0:dd702039127a 130 {
alejandroRL 0:dd702039127a 131 status_t status;
alejandroRL 0:dd702039127a 132 touch_event_t touch_event_local;
alejandroRL 0:dd702039127a 133
alejandroRL 0:dd702039127a 134 status = FT5406_RT_ReadTouchData(handle);
alejandroRL 0:dd702039127a 135
alejandroRL 0:dd702039127a 136 if (status == kStatus_Success)
alejandroRL 0:dd702039127a 137 {
alejandroRL 0:dd702039127a 138 ft5406_rt_touch_data_t *touch_data = (ft5406_rt_touch_data_t *)(void *)(handle->touch_buf);
alejandroRL 0:dd702039127a 139
alejandroRL 0:dd702039127a 140 if (touch_event == NULL)
alejandroRL 0:dd702039127a 141 {
alejandroRL 0:dd702039127a 142 touch_event = &touch_event_local;
alejandroRL 0:dd702039127a 143 }
alejandroRL 0:dd702039127a 144 *touch_event = TOUCH_POINT_GET_EVENT(touch_data->TOUCH[0]);
alejandroRL 0:dd702039127a 145
alejandroRL 0:dd702039127a 146 /* Update coordinates only if there is touch detected */
alejandroRL 0:dd702039127a 147 if ((*touch_event == kTouch_Down) || (*touch_event == kTouch_Contact))
alejandroRL 0:dd702039127a 148 {
alejandroRL 0:dd702039127a 149 if (touch_x)
alejandroRL 0:dd702039127a 150 {
alejandroRL 0:dd702039127a 151 *touch_x = TOUCH_POINT_GET_X(touch_data->TOUCH[0]);
alejandroRL 0:dd702039127a 152 }
alejandroRL 0:dd702039127a 153 if (touch_y)
alejandroRL 0:dd702039127a 154 {
alejandroRL 0:dd702039127a 155 *touch_y = TOUCH_POINT_GET_Y(touch_data->TOUCH[0]);
alejandroRL 0:dd702039127a 156 }
alejandroRL 0:dd702039127a 157 }
alejandroRL 0:dd702039127a 158 }
alejandroRL 0:dd702039127a 159
alejandroRL 0:dd702039127a 160 return status;
alejandroRL 0:dd702039127a 161 }
alejandroRL 0:dd702039127a 162
alejandroRL 0:dd702039127a 163 status_t FT5406_RT_GetMultiTouch(ft5406_rt_handle_t *handle,
alejandroRL 0:dd702039127a 164 int *touch_count,
alejandroRL 0:dd702039127a 165 touch_point_t touch_array[FT5406_RT_MAX_TOUCHES])
alejandroRL 0:dd702039127a 166 {
alejandroRL 0:dd702039127a 167 status_t status;
alejandroRL 0:dd702039127a 168
alejandroRL 0:dd702039127a 169 status = FT5406_RT_ReadTouchData(handle);
alejandroRL 0:dd702039127a 170
alejandroRL 0:dd702039127a 171 if (status == kStatus_Success)
alejandroRL 0:dd702039127a 172 {
alejandroRL 0:dd702039127a 173 ft5406_rt_touch_data_t *touch_data = (ft5406_rt_touch_data_t *)(void *)(handle->touch_buf);
alejandroRL 0:dd702039127a 174 int i;
alejandroRL 0:dd702039127a 175
alejandroRL 0:dd702039127a 176 /* Decode number of touches */
alejandroRL 0:dd702039127a 177 if (touch_count)
alejandroRL 0:dd702039127a 178 {
alejandroRL 0:dd702039127a 179 *touch_count = touch_data->TD_STATUS;
alejandroRL 0:dd702039127a 180 }
alejandroRL 0:dd702039127a 181
alejandroRL 0:dd702039127a 182 /* Decode valid touch points */
alejandroRL 0:dd702039127a 183 for (i = 0; i < touch_data->TD_STATUS; i++)
alejandroRL 0:dd702039127a 184 {
alejandroRL 0:dd702039127a 185 touch_array[i].TOUCH_ID = TOUCH_POINT_GET_ID(touch_data->TOUCH[i]);
alejandroRL 0:dd702039127a 186 touch_array[i].TOUCH_EVENT = TOUCH_POINT_GET_EVENT(touch_data->TOUCH[i]);
alejandroRL 0:dd702039127a 187 touch_array[i].TOUCH_X = TOUCH_POINT_GET_X(touch_data->TOUCH[i]);
alejandroRL 0:dd702039127a 188 touch_array[i].TOUCH_Y = TOUCH_POINT_GET_Y(touch_data->TOUCH[i]);
alejandroRL 0:dd702039127a 189 }
alejandroRL 0:dd702039127a 190
alejandroRL 0:dd702039127a 191 /* Clear vacant elements of touch_array */
alejandroRL 0:dd702039127a 192 for (; i < FT5406_RT_MAX_TOUCHES; i++)
alejandroRL 0:dd702039127a 193 {
alejandroRL 0:dd702039127a 194 touch_array[i].TOUCH_ID = 0;
alejandroRL 0:dd702039127a 195 touch_array[i].TOUCH_EVENT = kTouch_Reserved;
alejandroRL 0:dd702039127a 196 touch_array[i].TOUCH_X = 0;
alejandroRL 0:dd702039127a 197 touch_array[i].TOUCH_Y = 0;
alejandroRL 0:dd702039127a 198 }
alejandroRL 0:dd702039127a 199 }
alejandroRL 0:dd702039127a 200
alejandroRL 0:dd702039127a 201 return status;
alejandroRL 0:dd702039127a 202 }