Diff: Drivers/BSP/Components/ft5336/ft5336.c

Revision:

14:1a18e061d0ec

Parent:

13:85dbcff443aa

--- a/Drivers/BSP/Components/ft5336/ft5336.c	Wed Nov 27 08:29:42 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,623 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    ft5336.c
-  * @author  MCD Application Team
-  * @brief   This file provides a set of functions needed to manage the FT5336
-  *          touch screen devices.
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
-  *
-  * Redistribution and use in source and binary forms, with or without modification,
-  * are permitted provided that the following conditions are met:
-  *   1. Redistributions of source code must retain the above copyright notice,
-  *      this list of conditions and the following disclaimer.
-  *   2. 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.
-  *   3. Neither the name of STMicroelectronics nor the names of its contributors
-  *      may be used to endorse or promote products derived from this software
-  *      without specific prior written permission.
-  *
-  * 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.
-  *
-  ******************************************************************************
-  */
-
-/* Includes ------------------------------------------------------------------*/
-#include "ft5336.h"
-
-/** @addtogroup BSP
-  * @{
-  */
-
-/** @addtogroup Component
-  * @{
-  */
-
-/** @defgroup FT5336
-  * @{
-  */
-
-/* Private typedef -----------------------------------------------------------*/
-
-/** @defgroup FT5336_Private_Types_Definitions
-  * @{
-  */
-
-/* Private define ------------------------------------------------------------*/
-
-/** @defgroup FT5336_Private_Defines
-  * @{
-  */
-
-/* Private macro -------------------------------------------------------------*/
-
-/** @defgroup FT5336_Private_Macros
-  * @{
-  */
-
-/* Private variables ---------------------------------------------------------*/
-
-/** @defgroup FT5336_Private_Variables
-  * @{
-  */
-
-/* Touch screen driver structure initialization */
-TS_DrvTypeDef ft5336_ts_drv =
-{
-  ft5336_Init,
-  ft5336_ReadID,
-  ft5336_Reset,
-
-  ft5336_TS_Start,
-  ft5336_TS_DetectTouch,
-  ft5336_TS_GetXY,
-
-  ft5336_TS_EnableIT,
-  ft5336_TS_ClearIT,
-  ft5336_TS_ITStatus,
-  ft5336_TS_DisableIT
-
-};
-
-/* Global ft5336 handle */
-static ft5336_handle_TypeDef ft5336_handle = { FT5336_I2C_NOT_INITIALIZED, 0, 0};
-
-/**
-  * @}
-  */
-
-/** @defgroup ft5336_Private_Function_Prototypes
-  * @{
-  */
-
-/* Private functions prototypes-----------------------------------------------*/
-
-/**
-  * @brief  Return the status of I2C was initialized or not.
-  * @param  None.
-  * @retval : I2C initialization status.
-  */
-static uint8_t ft5336_Get_I2C_InitializedStatus(void);
-
-/**
-  * @brief  I2C initialize if needed.
-  * @param  None.
-  * @retval : None.
-  */
-static void ft5336_I2C_InitializeIfRequired(void);
-
-/**
-  * @brief  Basic static configuration of TouchScreen
-  * @param  DeviceAddr: FT5336 Device address for communication on I2C Bus.
-  * @retval Status FT5336_STATUS_OK or FT5336_STATUS_NOT_OK.
-  */
-static uint32_t ft5336_TS_Configure(uint16_t DeviceAddr);
-
-/** @defgroup ft5336_Private_Functions
-  * @{
-  */
-
-/** @defgroup ft5336_Public_Function_Body
-  * @{
-  */
-
-/* Public functions bodies-----------------------------------------------*/
-
-
-/**
-  * @brief  Initialize the ft5336 communication bus
-  *         from MCU to FT5336 : ie I2C channel initialization (if required).
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address of FT5336).
-  * @retval None
-  */
-void ft5336_Init(uint16_t DeviceAddr)
-{
-  /* Wait at least 200ms after power up before accessing registers
-   * Trsi timing (Time of starting to report point after resetting) from FT5336GQQ datasheet */
-  TS_IO_Delay(200);
-
-  /* Initialize I2C link if needed */
-  ft5336_I2C_InitializeIfRequired();
-}
-
-/**
-  * @brief  Software Reset the ft5336.
-  *         @note : Not applicable to FT5336.
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address of FT5336).
-  * @retval None
-  */
-void ft5336_Reset(uint16_t DeviceAddr)
-{
-  /* Do nothing */
-  /* No software reset sequence available in FT5336 IC */
-}
-
-/**
-  * @brief  Read the ft5336 device ID, pre initialize I2C in case of need to be
-  *         able to read the FT5336 device ID, and verify this is a FT5336.
-  * @param  DeviceAddr: I2C FT5336 Slave address.
-  * @retval The Device ID (two bytes).
-  */
-uint16_t ft5336_ReadID(uint16_t DeviceAddr)
-{
-  volatile uint8_t ucReadId = 0;
-  uint8_t nbReadAttempts = 0;
-  uint8_t bFoundDevice = 0; /* Device not found by default */
-
-  /* Initialize I2C link if needed */
-  ft5336_I2C_InitializeIfRequired();
-
-  /* At maximum 4 attempts to read ID : exit at first finding of the searched device ID */
-  for(nbReadAttempts = 0; ((nbReadAttempts < 3) && !(bFoundDevice)); nbReadAttempts++)
-  {
-    /* Read register FT5336_CHIP_ID_REG as DeviceID detection */
-    ucReadId = TS_IO_Read(DeviceAddr, FT5336_CHIP_ID_REG);
-
-    /* Found the searched device ID ? */
-    if(ucReadId == FT5336_ID_VALUE)
-    {
-      /* Set device as found */
-      bFoundDevice = 1;
-    }
-  }
-
-  /* Return the device ID value */
-  return (ucReadId);
-}
-
-/**
-  * @brief  Configures the touch Screen IC device to start detecting touches
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address).
-  * @retval None.
-  */
-void ft5336_TS_Start(uint16_t DeviceAddr)
-{
-  /* Minimum static configuration of FT5336 */
-  FT5336_ASSERT(ft5336_TS_Configure(DeviceAddr));
-
-  /* By default set FT5336 IC in Polling mode : no INT generation on FT5336 for new touch available */
-  /* Note TS_INT is active low                                                                      */
-  ft5336_TS_DisableIT(DeviceAddr);
-}
-
-/**
-  * @brief  Return if there is touches detected or not.
-  *         Try to detect new touches and forget the old ones (reset internal global
-  *         variables).
-  * @param  DeviceAddr: Device address on communication Bus.
-  * @retval : Number of active touches detected (can be 0, 1 or 2).
-  */
-uint8_t ft5336_TS_DetectTouch(uint16_t DeviceAddr)
-{
-  volatile uint8_t nbTouch = 0;
-
-  /* Read register FT5336_TD_STAT_REG to check number of touches detection */
-  nbTouch = TS_IO_Read(DeviceAddr, FT5336_TD_STAT_REG);
-  nbTouch &= FT5336_TD_STAT_MASK;
-
-  if(nbTouch > FT5336_MAX_DETECTABLE_TOUCH)
-  {
-    /* If invalid number of touch detected, set it to zero */
-    nbTouch = 0;
-  }
-
-  /* Update ft5336 driver internal global : current number of active touches */
-  ft5336_handle.currActiveTouchNb = nbTouch;
-
-  /* Reset current active touch index on which to work on */
-  ft5336_handle.currActiveTouchIdx = 0;
-
-  return(nbTouch);
-}
-
-/**
-  * @brief  Get the touch screen X and Y positions values
-  *         Manage multi touch thanks to touch Index global
-  *         variable 'ft5336_handle.currActiveTouchIdx'.
-  * @param  DeviceAddr: Device address on communication Bus.
-  * @param  X: Pointer to X position value
-  * @param  Y: Pointer to Y position value
-  * @retval None.
-  */
-void ft5336_TS_GetXY(uint16_t DeviceAddr, uint16_t *X, uint16_t *Y)
-{
-  volatile uint8_t ucReadData = 0;
-  static uint16_t coord;
-  uint8_t regAddressXLow = 0;
-  uint8_t regAddressXHigh = 0;
-  uint8_t regAddressYLow = 0;
-  uint8_t regAddressYHigh = 0;
-
-  if(ft5336_handle.currActiveTouchIdx < ft5336_handle.currActiveTouchNb)
-  {
-    switch(ft5336_handle.currActiveTouchIdx)
-    {
-    case 0 :
-      regAddressXLow  = FT5336_P1_XL_REG;
-      regAddressXHigh = FT5336_P1_XH_REG;
-      regAddressYLow  = FT5336_P1_YL_REG;
-      regAddressYHigh = FT5336_P1_YH_REG;
-      break;
-
-    case 1 :
-      regAddressXLow  = FT5336_P2_XL_REG;
-      regAddressXHigh = FT5336_P2_XH_REG;
-      regAddressYLow  = FT5336_P2_YL_REG;
-      regAddressYHigh = FT5336_P2_YH_REG;
-      break;
-
-    case 2 :
-      regAddressXLow  = FT5336_P3_XL_REG;
-      regAddressXHigh = FT5336_P3_XH_REG;
-      regAddressYLow  = FT5336_P3_YL_REG;
-      regAddressYHigh = FT5336_P3_YH_REG;
-      break;
-
-    case 3 :
-      regAddressXLow  = FT5336_P4_XL_REG;
-      regAddressXHigh = FT5336_P4_XH_REG;
-      regAddressYLow  = FT5336_P4_YL_REG;
-      regAddressYHigh = FT5336_P4_YH_REG;
-      break;
-
-    case 4 :
-      regAddressXLow  = FT5336_P5_XL_REG;
-      regAddressXHigh = FT5336_P5_XH_REG;
-      regAddressYLow  = FT5336_P5_YL_REG;
-      regAddressYHigh = FT5336_P5_YH_REG;
-      break;
-
-    case 5 :
-      regAddressXLow  = FT5336_P6_XL_REG;
-      regAddressXHigh = FT5336_P6_XH_REG;
-      regAddressYLow  = FT5336_P6_YL_REG;
-      regAddressYHigh = FT5336_P6_YH_REG;
-      break;
-
-    case 6 :
-      regAddressXLow  = FT5336_P7_XL_REG;
-      regAddressXHigh = FT5336_P7_XH_REG;
-      regAddressYLow  = FT5336_P7_YL_REG;
-      regAddressYHigh = FT5336_P7_YH_REG;
-      break;
-
-    case 7 :
-      regAddressXLow  = FT5336_P8_XL_REG;
-      regAddressXHigh = FT5336_P8_XH_REG;
-      regAddressYLow  = FT5336_P8_YL_REG;
-      regAddressYHigh = FT5336_P8_YH_REG;
-      break;
-
-    case 8 :
-      regAddressXLow  = FT5336_P9_XL_REG;
-      regAddressXHigh = FT5336_P9_XH_REG;
-      regAddressYLow  = FT5336_P9_YL_REG;
-      regAddressYHigh = FT5336_P9_YH_REG;
-      break;
-
-    case 9 :
-      regAddressXLow  = FT5336_P10_XL_REG;
-      regAddressXHigh = FT5336_P10_XH_REG;
-      regAddressYLow  = FT5336_P10_YL_REG;
-      regAddressYHigh = FT5336_P10_YH_REG;
-      break;
-
-    default :
-      break;
-
-    } /* end switch(ft5336_handle.currActiveTouchIdx) */
-
-    /* Read low part of X position */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressXLow);
-    coord = (ucReadData & FT5336_TOUCH_POS_LSB_MASK) >> FT5336_TOUCH_POS_LSB_SHIFT;
-
-    /* Read high part of X position */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressXHigh);
-    coord |= ((ucReadData & FT5336_TOUCH_POS_MSB_MASK) >> FT5336_TOUCH_POS_MSB_SHIFT) << 8;
-
-    /* Send back ready X position to caller */
-    *X = coord;
-
-    /* Read low part of Y position */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressYLow);
-    coord = (ucReadData & FT5336_TOUCH_POS_LSB_MASK) >> FT5336_TOUCH_POS_LSB_SHIFT;
-
-    /* Read high part of Y position */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressYHigh);
-    coord |= ((ucReadData & FT5336_TOUCH_POS_MSB_MASK) >> FT5336_TOUCH_POS_MSB_SHIFT) << 8;
-
-    /* Send back ready Y position to caller */
-    *Y = coord;
-
-    ft5336_handle.currActiveTouchIdx++; /* next call will work on next touch */
-
-  } /* of if(ft5336_handle.currActiveTouchIdx < ft5336_handle.currActiveTouchNb) */
-}
-
-/**
-  * @brief  Configure the FT5336 device to generate IT on given INT pin
-  *         connected to MCU as EXTI.
-  * @param  DeviceAddr: Device address on communication Bus (Slave I2C address of FT5336).
-  * @retval None
-  */
-void ft5336_TS_EnableIT(uint16_t DeviceAddr)
-{
-   uint8_t regValue = 0;
-   regValue = (FT5336_G_MODE_INTERRUPT_TRIGGER & (FT5336_G_MODE_INTERRUPT_MASK >> FT5336_G_MODE_INTERRUPT_SHIFT)) << FT5336_G_MODE_INTERRUPT_SHIFT;
-
-   /* Set interrupt trigger mode in FT5336_GMODE_REG */
-   TS_IO_Write(DeviceAddr, FT5336_GMODE_REG, regValue);
-}
-
-/**
-  * @brief  Configure the FT5336 device to stop generating IT on the given INT pin
-  *         connected to MCU as EXTI.
-  * @param  DeviceAddr: Device address on communication Bus (Slave I2C address of FT5336).
-  * @retval None
-  */
-void ft5336_TS_DisableIT(uint16_t DeviceAddr)
-{
-  uint8_t regValue = 0;
-  regValue = (FT5336_G_MODE_INTERRUPT_POLLING & (FT5336_G_MODE_INTERRUPT_MASK >> FT5336_G_MODE_INTERRUPT_SHIFT)) << FT5336_G_MODE_INTERRUPT_SHIFT;
-
-  /* Set interrupt polling mode in FT5336_GMODE_REG */
-  TS_IO_Write(DeviceAddr, FT5336_GMODE_REG, regValue);
-}
-
-/**
-  * @brief  Get IT status from FT5336 interrupt status registers
-  *         Should be called Following an EXTI coming to the MCU to know the detailed
-  *         reason of the interrupt.
-  *         @note : This feature is not applicable to FT5336.
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address of FT5336).
-  * @retval TS interrupts status : always return 0 here
-  */
-uint8_t ft5336_TS_ITStatus(uint16_t DeviceAddr)
-{
-  /* Always return 0 as feature not applicable to FT5336 */
-  return 0;
-}
-
-/**
-  * @brief  Clear IT status in FT5336 interrupt status clear registers
-  *         Should be called Following an EXTI coming to the MCU.
-  *         @note : This feature is not applicable to FT5336.
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address of FT5336).
-  * @retval None
-  */
-void ft5336_TS_ClearIT(uint16_t DeviceAddr)
-{
-  /* Nothing to be done here for FT5336 */
-}
-
-/**** NEW FEATURES enabled when Multi-touch support is enabled ****/
-
-#if (TS_MULTI_TOUCH_SUPPORTED == 1)
-
-/**
-  * @brief  Get the last touch gesture identification (zoom, move up/down...).
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address of FT5336).
-  * @param  pGestureId : Pointer to get last touch gesture Identification.
-  * @retval None.
-  */
-void ft5336_TS_GetGestureID(uint16_t DeviceAddr, uint32_t * pGestureId)
-{
-  volatile uint8_t ucReadData = 0;
-
-  ucReadData = TS_IO_Read(DeviceAddr, FT5336_GEST_ID_REG);
-
-  * pGestureId = ucReadData;
-}
-
-/**
-  * @brief  Get the touch detailed informations on touch number 'touchIdx' (0..1)
-  *         This touch detailed information contains :
-  *         - weight that was applied to this touch
-  *         - sub-area of the touch in the touch panel
-  *         - event of linked to the touch (press down, lift up, ...)
-  * @param  DeviceAddr: Device address on communication Bus (I2C slave address of FT5336).
-  * @param  touchIdx : Passed index of the touch (0..1) on which we want to get the
-  *                    detailed information.
-  * @param  pWeight : Pointer to to get the weight information of 'touchIdx'.
-  * @param  pArea   : Pointer to to get the sub-area information of 'touchIdx'.
-  * @param  pEvent  : Pointer to to get the event information of 'touchIdx'.
-
-  * @retval None.
-  */
-void ft5336_TS_GetTouchInfo(uint16_t   DeviceAddr,
-                            uint32_t   touchIdx,
-                            uint32_t * pWeight,
-                            uint32_t * pArea,
-                            uint32_t * pEvent)
-{
-  volatile uint8_t ucReadData = 0;
-  uint8_t regAddressXHigh = 0;
-  uint8_t regAddressPWeight = 0;
-  uint8_t regAddressPMisc = 0;
-
-  if(touchIdx < ft5336_handle.currActiveTouchNb)
-  {
-    switch(touchIdx)
-    {
-    case 0 :
-      regAddressXHigh   = FT5336_P1_XH_REG;
-      regAddressPWeight = FT5336_P1_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P1_MISC_REG;
-      break;
-
-    case 1 :
-      regAddressXHigh   = FT5336_P2_XH_REG;
-      regAddressPWeight = FT5336_P2_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P2_MISC_REG;
-      break;
-
-    case 2 :
-      regAddressXHigh   = FT5336_P3_XH_REG;
-      regAddressPWeight = FT5336_P3_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P3_MISC_REG;
-      break;
-
-    case 3 :
-      regAddressXHigh   = FT5336_P4_XH_REG;
-      regAddressPWeight = FT5336_P4_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P4_MISC_REG;
-      break;
-
-    case 4 :
-      regAddressXHigh   = FT5336_P5_XH_REG;
-      regAddressPWeight = FT5336_P5_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P5_MISC_REG;
-      break;
-
-    case 5 :
-      regAddressXHigh   = FT5336_P6_XH_REG;
-      regAddressPWeight = FT5336_P6_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P6_MISC_REG;
-      break;
-
-    case 6 :
-      regAddressXHigh   = FT5336_P7_XH_REG;
-      regAddressPWeight = FT5336_P7_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P7_MISC_REG;
-      break;
-
-    case 7 :
-      regAddressXHigh   = FT5336_P8_XH_REG;
-      regAddressPWeight = FT5336_P8_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P8_MISC_REG;
-      break;
-
-    case 8 :
-      regAddressXHigh   = FT5336_P9_XH_REG;
-      regAddressPWeight = FT5336_P9_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P9_MISC_REG;
-      break;
-
-    case 9 :
-      regAddressXHigh   = FT5336_P10_XH_REG;
-      regAddressPWeight = FT5336_P10_WEIGHT_REG;
-      regAddressPMisc   = FT5336_P10_MISC_REG;
-      break;
-
-    default :
-      break;
-
-    } /* end switch(touchIdx) */
-
-    /* Read Event Id of touch index */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressXHigh);
-    * pEvent = (ucReadData & FT5336_TOUCH_EVT_FLAG_MASK) >> FT5336_TOUCH_EVT_FLAG_SHIFT;
-
-    /* Read weight of touch index */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressPWeight);
-    * pWeight = (ucReadData & FT5336_TOUCH_WEIGHT_MASK) >> FT5336_TOUCH_WEIGHT_SHIFT;
-
-    /* Read area of touch index */
-    ucReadData = TS_IO_Read(DeviceAddr, regAddressPMisc);
-    * pArea = (ucReadData & FT5336_TOUCH_AREA_MASK) >> FT5336_TOUCH_AREA_SHIFT;
-
-  } /* of if(touchIdx < ft5336_handle.currActiveTouchNb) */
-}
-
-#endif /* TS_MULTI_TOUCH_SUPPORTED == 1 */
-
-/** @defgroup ft5336_Static_Function_Body
-  * @{
-  */
-
-/* Static functions bodies-----------------------------------------------*/
-
-
-/**
-  * @brief  Return the status of I2C was initialized or not.
-  * @param  None.
-  * @retval : I2C initialization status.
-  */
-static uint8_t ft5336_Get_I2C_InitializedStatus(void)
-{
-  return(ft5336_handle.i2cInitialized);
-}
-
-/**
-  * @brief  I2C initialize if needed.
-  * @param  None.
-  * @retval : None.
-  */
-static void ft5336_I2C_InitializeIfRequired(void)
-{
-  if(ft5336_Get_I2C_InitializedStatus() == FT5336_I2C_NOT_INITIALIZED)
-  {
-    /* Initialize TS IO BUS layer (I2C) */
-    TS_IO_Init();
-
-    /* Set state to initialized */
-    ft5336_handle.i2cInitialized = FT5336_I2C_INITIALIZED;
-  }
-}
-
-/**
-  * @brief  Basic static configuration of TouchScreen
-  * @param  DeviceAddr: FT5336 Device address for communication on I2C Bus.
-  * @retval Status FT5336_STATUS_OK or FT5336_STATUS_NOT_OK.
-  */
-static uint32_t ft5336_TS_Configure(uint16_t DeviceAddr)
-{
-  uint32_t status = FT5336_STATUS_OK;
-
-  /* Nothing special to be done for FT5336 */
-
-  return(status);
-}
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/