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255 lines
7.0 KiB
255 lines
7.0 KiB
2 years ago
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/**
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******************************************************************************
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* @file ts3510.c
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* @author MCD Application Team
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* @brief This file provides a set of functions needed to manage the TS3510
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* IO Expander devices.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "ts3510.h"
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/** @addtogroup BSP
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* @{
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*/
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/** @addtogroup Component
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* @{
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*/
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/** @defgroup TS3510
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/** @defgroup TS3510_Private_Types_Definitions
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* @{
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*/
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/* Private define ------------------------------------------------------------*/
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/** @defgroup TS3510_Private_Defines
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* @{
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*/
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/* Private macro -------------------------------------------------------------*/
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/** @defgroup TS3510_Private_Macros
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* @{
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*/
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/* Private variables ---------------------------------------------------------*/
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/** @defgroup TS3510_Private_Variables
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* @{
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*/
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/* Touch screen driver structure initialization */
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TS_DrvTypeDef ts3510_ts_drv =
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{
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ts3510_Init,
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ts3510_ReadID,
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ts3510_Reset,
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ts3510_TS_Start,
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ts3510_TS_DetectTouch,
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ts3510_TS_GetXY,
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ts3510_TS_EnableIT,
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ts3510_TS_ClearIT,
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ts3510_TS_ITStatus,
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ts3510_TS_DisableIT,
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};
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/**
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* @}
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*/
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/* Private function prototypes -----------------------------------------------*/
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/** @defgroup ts3510_Private_Function_Prototypes
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* @{
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*/
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/* Private functions ---------------------------------------------------------*/
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/** @defgroup ts3510_Private_Functions
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* @{
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*/
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/**
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* @brief Initialize the ts3510 and configure the needed hardware resources
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* @param DeviceAddr: Device address on communication Bus.
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* @retval None
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*/
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void ts3510_Init(uint16_t DeviceAddr)
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{
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/* Initialize IO BUS layer */
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IOE_Init();
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}
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/**
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* @brief Reset the ts3510 by Software.
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* @param DeviceAddr: Device address on communication Bus.
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* @retval None
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*/
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void ts3510_Reset(uint16_t DeviceAddr)
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{
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}
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/**
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* @brief Read the ts3510 IO Expander device ID.
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* @param DeviceAddr: Device address on communication Bus.
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* @retval The Device ID (two bytes).
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*/
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uint16_t ts3510_ReadID(uint16_t DeviceAddr)
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{
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return 0;
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}
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/**
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* @brief Configures the touch Screen Controller (Single point detection)
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* @param DeviceAddr: Device address on communication Bus.
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* @retval None.
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*/
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void ts3510_TS_Start(uint16_t DeviceAddr)
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{
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}
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/**
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* @brief Return if there is touch detected or not.
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* @param DeviceAddr: Device address on communication Bus.
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* @retval Touch detected state.
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*/
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uint8_t ts3510_TS_DetectTouch(uint16_t DeviceAddr)
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{
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uint8_t aBufferTS[11];
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uint8_t aTmpBuffer[2] = {TS3510_READ_CMD, TS3510_WRITE_CMD};
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/* Prepare for LCD read data */
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IOE_WriteMultiple(DeviceAddr, TS3510_SEND_CMD_REG, aTmpBuffer, 2);
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/* Read TS data from LCD */
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IOE_ReadMultiple(DeviceAddr, TS3510_READ_BLOCK_REG, aBufferTS, 11);
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/* check for first byte */
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if((aBufferTS[1] == 0xFF) && (aBufferTS[2] == 0xFF) && (aBufferTS[3] == 0xFF) && (aBufferTS[4] == 0xFF))
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{
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return 0;
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}
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else
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{
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return 1;
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}
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}
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/**
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* @brief Get the touch screen X and Y positions values
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* @param DeviceAddr: Device address on communication Bus.
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* @param X: Pointer to X position value
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* @param Y: Pointer to Y position value
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* @retval None.
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*/
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void ts3510_TS_GetXY(uint16_t DeviceAddr, uint16_t *X, uint16_t *Y)
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{
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uint8_t aBufferTS[11];
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uint8_t aTmpBuffer[2] = {TS3510_READ_CMD, TS3510_WRITE_CMD};
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/* Prepare for LCD read data */
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IOE_WriteMultiple(DeviceAddr, TS3510_SEND_CMD_REG, aTmpBuffer, 2);
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/* Read TS data from LCD */
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IOE_ReadMultiple(DeviceAddr, TS3510_READ_BLOCK_REG, aBufferTS, 11);
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/* Calculate positions */
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*X = (((aBufferTS[1] << 8) | aBufferTS[2]) << 12) / 640;
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*Y = (((aBufferTS[3] << 8) | aBufferTS[4]) << 12) / 480;
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/* set position to be relative to 12bits resolution */
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}
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/**
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* @brief Configure the selected source to generate a global interrupt or not
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* @param DeviceAddr: Device address on communication Bus.
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* @retval None
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*/
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void ts3510_TS_EnableIT(uint16_t DeviceAddr)
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{
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}
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/**
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* @brief Configure the selected source to generate a global interrupt or not
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* @param DeviceAddr: Device address on communication Bus.
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* @retval None
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*/
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void ts3510_TS_DisableIT(uint16_t DeviceAddr)
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{
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}
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/**
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* @brief Configure the selected source to generate a global interrupt or not
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* @param DeviceAddr: Device address on communication Bus.
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* @retval TS interrupts status
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*/
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uint8_t ts3510_TS_ITStatus(uint16_t DeviceAddr)
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{
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return 0;
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}
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/**
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* @brief Configure the selected source to generate a global interrupt or not
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* @param DeviceAddr: Device address on communication Bus.
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* @retval None
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*/
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void ts3510_TS_ClearIT(uint16_t DeviceAddr)
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{
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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