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254 lines
7.0 KiB
254 lines
7.0 KiB
/** |
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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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