Initial commit

ide-touchgfx-gen/TouchGFX/target/STM32TouchController.cpp

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+/**
+  ******************************************************************************
+  * File Name          : STM32TouchController.cpp
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under Ultimate Liberty license
+  * SLA0044, the "License"; You may not use this file except in compliance with
+  * the License. You may obtain a copy of the License at:
+  *                             www.st.com/SLA0044
+  *
+  ******************************************************************************
+  */
+
+/* USER CODE BEGIN STM32TouchController */
+
+#include <STM32TouchController.hpp>
+#include <TouchGFXHAL.hpp>
+#include <ft5336.h>
+#include <stm32f7xx_hal.h>
+#include <touchgfx/hal/OSWrappers.hpp>
+
+static TS_DrvTypeDef* tsDriver;
+extern I2C_HandleTypeDef hi2c3;
+
+void STM32TouchController::init()
+{
+    /* Initialize the TS driver structure */
+    tsDriver = &ft5336_ts_drv;
+
+    /* Initialize the TS driver */
+    tsDriver->Start(TS_I2C_ADDRESS);
+}
+
+bool STM32TouchController::sampleTouch(int32_t& x, int32_t& y)
+{
+    /**
+     * By default sampleTouch returns false,
+     * return true if a touch has been detected, otherwise false.
+     *
+     * Coordinates are passed to the caller by reference by x and y.
+     *
+     * This function is called by the TouchGFX framework.
+     * By default sampleTouch is called every tick, this can be adjusted by HAL::setTouchSampleRate(int8_t);
+     *
+     */
+    if (tsDriver)
+    {
+        if (tsDriver->DetectTouch(TS_I2C_ADDRESS))
+        {
+            /* Get each touch coordinates */
+            tsDriver->GetXY(TS_I2C_ADDRESS, (uint16_t*)&y, (uint16_t*)&x);
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+  * @brief  Manages error callback by re-initializing I2C.
+  * @param  i2c_handler : I2C handler
+  * @param  Addr: I2C Address
+  * @retval None
+  */
+static void I2Cx_Error(I2C_HandleTypeDef* i2c_handler, uint8_t Addr)
+{
+    /* De-initialize the I2C communication bus */
+    HAL_I2C_DeInit(i2c_handler);
+
+    /* Re-Initialize the I2C communication bus */
+    //I2Cx_Init(i2c_handler);
+}
+
+/**
+  * @brief  Reads multiple data.
+  * @param  i2c_handler : I2C handler
+  * @param  Addr: I2C address
+  * @param  Reg: Reg address
+  * @param  MemAddress: Memory address
+  * @param  Buffer: Pointer to data buffer
+  * @param  Length: Length of the data
+  * @retval Number of read data
+  */
+static HAL_StatusTypeDef I2Cx_ReadMultiple(I2C_HandleTypeDef* i2c_handler,
+                                           uint8_t Addr,
+                                           uint16_t Reg,
+                                           uint16_t MemAddress,
+                                           uint8_t* Buffer,
+                                           uint16_t Length)
+{
+    HAL_StatusTypeDef status = HAL_OK;
+
+    status = HAL_I2C_Mem_Read(i2c_handler, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000);
+
+    /* Check the communication status */
+    if (status != HAL_OK)
+    {
+        /* I2C error occurred */
+        I2Cx_Error(i2c_handler, Addr);
+    }
+    return status;
+}
+
+/**
+  * @brief  Writes a value in a register of the device through BUS in using DMA mode.
+  * @param  i2c_handler : I2C handler
+  * @param  Addr: Device address on BUS Bus.
+  * @param  Reg: The target register address to write
+  * @param  MemAddress: Memory address
+  * @param  Buffer: The target register value to be written
+  * @param  Length: buffer size to be written
+  * @retval HAL status
+  */
+static HAL_StatusTypeDef I2Cx_WriteMultiple(I2C_HandleTypeDef* i2c_handler,
+                                            uint8_t Addr,
+                                            uint16_t Reg,
+                                            uint16_t MemAddress,
+                                            uint8_t* Buffer,
+                                            uint16_t Length)
+{
+    HAL_StatusTypeDef status = HAL_OK;
+
+    status = HAL_I2C_Mem_Write(i2c_handler, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000);
+
+    /* Check the communication status */
+    if (status != HAL_OK)
+    {
+        /* Re-Initiaize the I2C Bus */
+        I2Cx_Error(i2c_handler, Addr);
+    }
+    return status;
+}
+
+/**
+  * @brief  Writes a single data.
+  * @param  Addr: I2C address
+  * @param  Reg: Reg address
+  * @param  Value: Data to be written
+  * @retval None
+  */
+void TS_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
+{
+    I2Cx_WriteMultiple(&hi2c3, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&Value, 1);
+}
+
+/**
+  * @brief  Reads a single data.
+  * @param  Addr: I2C address
+  * @param  Reg: Reg address
+  * @retval Data to be read
+  */
+uint8_t TS_IO_Read(uint8_t Addr, uint8_t Reg)
+{
+    uint8_t read_value = 0;
+
+    I2Cx_ReadMultiple(&hi2c3, Addr, Reg, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&read_value, 1);
+
+    return read_value;
+}
+
+/**
+  * @brief  TS delay
+  * @param  Delay: Delay in ms
+  * @retval None
+  */
+void TS_IO_Delay(uint32_t Delay)
+{
+    HAL_Delay(Delay);
+}
+
+/* USER CODE END STM32TouchController */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/