Diff: source/fsl_ft5406_rt.h

Revision:

0:dd702039127a

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+++ b/source/fsl_ft5406_rt.h	Thu Sep 20 19:16:34 2018 +0000
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+/*
+ * The Clear BSD License
+ * Copyright (c) 2016, Freescale Semiconductor, Inc.
+ * Copyright 2016-2017 NXP
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted (subject to the limitations in the disclaimer below) provided
+ *  that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o 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.
+ *
+ * o Neither the name of the copyright holder nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
+ * 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 HOLDER 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 _FSL_FT5406_RT_H_
+#define _FSL_FT5406_RT_H_
+
+#include "fsl_common.h"
+
+/*!
+ * @addtogroup ft5406_rt
+ * @{
+ */
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*! @brief FT5406_RT I2C address. */
+#define FT5406_RT_I2C_ADDRESS (0x38)
+
+/*! @brief FT5406_RT maximum number of simultaneously detected touches. */
+#define FT5406_RT_MAX_TOUCHES (5U)
+
+/*! @brief FT5406_RT register address where touch data begin. */
+#define FT5406_RT_TOUCH_DATA_SUBADDR (1)
+
+/*! @brief FT5406_RT raw touch data length. */
+#define FT5406_RT_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_rt_handle
+{
+    LPI2C_Type *base;
+    lpi2c_master_transfer_t xfer;
+    uint8_t touch_buf[FT5406_RT_TOUCH_DATA_LEN];
+} ft5406_rt_handle_t;
+
+status_t FT5406_RT_Init(ft5406_rt_handle_t *handle, LPI2C_Type *base);
+
+status_t FT5406_RT_Denit(ft5406_rt_handle_t *handle);
+
+status_t FT5406_RT_GetSingleTouch(ft5406_rt_handle_t *handle, touch_event_t *touch_event, int *touch_x, int *touch_y);
+
+status_t FT5406_RT_GetMultiTouch(ft5406_rt_handle_t *handle,
+                                 int *touch_count,
+                                 touch_point_t touch_array[FT5406_RT_MAX_TOUCHES]);
+
+#endif