C++ BSP_JOY_GetState函数代码示例

/**
  * @brief  Joystick Exti demo
  * @param  None
  * @retval None
  */
void Joystick_exti_demo (void)
{
  uint8_t status = 0;
  uint32_t ITstatus = 0;

  Joystick_SetHint(1);

  status = BSP_JOY_Init(JOY_MODE_EXTI);

  if (status != IO_OK)
  {
    BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
    BSP_LCD_SetTextColor(LCD_COLOR_RED);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 95, (uint8_t *)"ERROR", CENTER_MODE);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 80, (uint8_t *)"Joystick cannot be initialized", CENTER_MODE);
  }

  if (status == IO_OK)
  {
    Joystick_SetCursorPosition();
  }	

  while (1)  /* pull for USER button in GPIO mode */
  {
    if (status == IO_OK)
    {
      if (MfxExtiReceived == 1)
      {
        MfxExtiReceived = 0;
        ITstatus = BSP_IO_ITGetStatus(JOY_ALL_PINS);
        if (ITstatus)
        {
          /* Get the Joystick State */
          JoyState = BSP_JOY_GetState();
          Joystick_SetCursorPosition();
        }
        BSP_IO_ITClear();
        /* poll if joystick is still pressed until it is released*/
        while ( BSP_JOY_GetState() != JOY_NONE)
        {
          Joystick_SetCursorPosition();
          HAL_Delay(5);
        }
      }
    }
    if(CheckForUserInput() > 0)
    {
      return;
    }
    HAL_Delay(5);
  }
}

/**
  * @brief  Joystick Msc menu
  * @param  None
  * @retval None
  */
void Joystick_MscMenu(void)
{
  static JOYState_TypeDef JoyState = JOY_NONE;
  
    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    
    MSC_DEMO_ProbeKey(JoyState); 
    
    switch(JoyState)
    {
    case JOY_LEFT:
      LCD_LOG_ScrollBack();
      break;
           
    case JOY_RIGHT:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }

    osSemaphoreRelease(MenuEvent);
}

/**
  * @brief  Joystick Gpio demo
  * @param  None
  * @retval None
  */
void Joystick_demo (void)
{ 

  uint8_t status = 0;

  Joystick_SetHint();
  
  status = BSP_JOY_Init();
  
  if (status != HAL_OK)
  {
    BSP_LCD_SetBackColor(LCD_COLOR_WHITE); 
    BSP_LCD_SetTextColor(LCD_COLOR_RED);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 70, (uint8_t *)"ERROR", CENTER_MODE);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 55, (uint8_t *)"Joystick cannot", CENTER_MODE);
    BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 40, (uint8_t *)"be initialized", CENTER_MODE);
  }
  
  while (1)
  {
    if (status == HAL_OK)
    {
      /* Get the Joystick State */
      JoyState = BSP_JOY_GetState();
      Joystick_SetCursorPosition();
    }
    if(CheckForUserInput() > 0)
    {
      return;
    }
    HAL_Delay(6);
  }
}

/**
  * @brief  Gets Pointer Data.
  * @param  pbuf: Pointer to report
  * @retval None
  */
static void GetPointerData(uint8_t *pbuf)
{
  int8_t  x = 0, y = 0 ;

  switch (BSP_JOY_GetState())
  {
    case JOY_LEFT:
      x -= CURSOR_STEP;
      break;

    case JOY_RIGHT:
      x += CURSOR_STEP;
      break;

    case JOY_UP:
      y -= CURSOR_STEP;
      break;

    case JOY_DOWN:
      y += CURSOR_STEP;
      break;

    default:
      break;
  }

  pbuf[0] = 0;
  pbuf[1] = x;
  pbuf[2] = y;
  pbuf[3] = 0;
}

/**
  * @brief  EXTI line detection callbacks.
  * @param  GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{  
  __IO JOYState_TypeDef JoyState = JOY_NONE;
  
  if(GPIO_Pin == GPIO_PIN_8)
  {    
    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    
    HID_DEMO_ProbeKey(JoyState); 
    
    switch(JoyState)
    {
    case JOY_LEFT:
      LCD_LOG_ScrollBack();
      break;
           
    case JOY_RIGHT:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }
    /* Clear joystick interrupt pending bits */
    BSP_IO_ITClear();
    osSemaphoreRelease(MenuEvent);
  }
}

/**
  * @brief  EXTI line detection callbacks.
  * @param  GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
  static JOYState_TypeDef JoyState = JOY_NONE;
  
  if(GPIO_Pin == GPIO_PIN_2)
  {    
    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    
    MSC_DEMO_ProbeKey(JoyState); 
    
    switch(JoyState)
    {
    case JOY_LEFT:
      LCD_LOG_ScrollBack();
      break;
           
    case JOY_RIGHT:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }
    /* Clear joystick interrupt pending bits */
    BSP_IO_ITClear(JOY_ALL_PINS);
  }
}

/**
  * @brief  Joystick audio menu
  * @param  None
  * @retval None
  */
void Joystick_AudioMenu(void)
{
  static JOYState_TypeDef JoyState = JOY_NONE;

    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();

    
    if(AudioSelectMode == AUDIO_SELECT_MENU)
    {  
      AUDIO_MenuProbeKey(JoyState); 
      
      switch(JoyState)
      {
      case JOY_LEFT:
        LCD_LOG_ScrollBack();
        break;
        
      case JOY_RIGHT:
        LCD_LOG_ScrollForward();
        break;          
        
      default:
        break;           
      }
    }
    else if(AudioSelectMode == AUDIO_PLAYBACK_CONTROL)
    {
      AUDIO_PlaybackProbeKey(JoyState);
    }

}

/**
  * @brief  LCD Log demo 
  * @param  None
  * @retval None
  */
void Log_demo(void)
{ 
  JOYState_TypeDef JoyState = JOY_NONE;
  uint8_t i = 0;
  
  /* Wait For User inputs */
  while(CheckForUserInput() == 0);
  
  BSP_JOY_Init(JOY_MODE_GPIO);
  
  /* Initialize LCD Log module */
  LCD_LOG_Init();
  
  /* Show Header and Footer texts */
  LCD_LOG_SetHeader((uint8_t *)"Log Example");
  LCD_LOG_SetFooter((uint8_t *)"Use Joystick to scroll up/down");
  
  /* Output User logs */
  for (i = 0; i < 10; i++)
  {
    LCD_UsrLog ("This is Line %d \n", i);
  }
  
  HAL_Delay(2000);
  
  /* Clear Old logs */
  LCD_LOG_ClearTextZone();
  
  /* Output new user logs */
  for (i = 0; i < 30; i++)
  {
    LCD_UsrLog ("This is Line %d \n", i);
  }
  
  /* Check for joystick user input for scroll (back and forward) */
  while (1)
  {
    JoyState = BSP_JOY_GetState();
    switch(JoyState)
    {
    case JOY_UP:
      LCD_LOG_ScrollBack();
      break;
      
    case JOY_DOWN:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }
    if(CheckForUserInput() > 0)
    {
      return;
    }    
    HAL_Delay (10);
  }
}

/**
  * @brief  EXTI line detection callbacks.
  * @param  GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
  /* If the interruption comes from the Joystick, check which
     Joystick button has been pressed */
  JoyState = BSP_JOY_GetState();

  if(JoyState == JOY_SEL) 
  {
    /* SEL is used to pause and resume the audio playback */
    if (PressCount == 1)
    {
      /* Resume playing Wave status */
      PauseResumeStatus = RESUME_STATUS;
      PressCount = 0;
    }
    else
    {
      /* Pause playing Wave status */
      PauseResumeStatus = PAUSE_STATUS;
      PressCount = 1;
    }
  }
  else if(JoyState == JOY_UP)
  {
    /* UP is used to increment the volume of the audio playback */
    volume ++;
    if (volume > 100)
    {
      volume = 100;
    }
    VolumeChange = 1;
  }
  else if(JoyState == JOY_DOWN)
  {
    /* DOWN is used to decrement the volume of the audio playback */
    volume --;
    if ((int8_t)volume < 50)
    {
      volume = 50;
    }
    VolumeChange = 1;
  }

  /* Clear MFX IT */
  BSP_IO_ITClear();
}

/**
  * @brief  EXTI line detection callbacks.
  * @param  GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
  static JOYState_TypeDef JoyState = JOY_NONE;
  
  if(GPIO_Pin == MFX_IRQOUT_PIN)
  {    
    /* The different functionalities of MFX (TS, Joystick, SD detection, etc. )  
    can be configured in exti mode to generate an IRQ on given events.
    The MFX IRQ_OUT pin is unique and common to all functionalities, so if several 
    functionalities are configured in exit mode, the MCU has to enquire MFX about  
    the IRQ source (see BSP_IO_ITGetStatus). Communication with Mfx is done by I2C. 
    Often the sw requires ISRs (irq service routines) to be quick while communication 
    with I2C can be considered relatively long (hundreds of usec depending on I2C clk). 
    Considering that the features for human interaction like TS, Joystick, SD detection 
    don’t need immediate reaction, it is suggested to use POLLING instead of EXTI mode, 
    in order to avoid "blocking I2C communication" on interrupt service routines */

    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    HAL_Delay(200);
    
    MSC_DEMO_ProbeKey(JoyState); 
    
    switch(JoyState)
    {
    case JOY_LEFT:
      LCD_LOG_ScrollBack();
      break;
           
    case JOY_RIGHT:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }
    /* Clear joystick interrupt pending bits */
    BSP_IO_ITClear();
  }
}

/**
  * @brief  EXTI line detection callbacks.
  * @param  GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{  
  __IO JOYState_TypeDef JoyState = JOY_NONE;
  
  if(GPIO_Pin == MFX_IRQOUT_PIN)
  {    
    /* The different functionalities of MFX (TS, Joystick, SD detection, etc. )  
    can be configured in exti mode to generate an IRQ on given events.
    The MFX IRQ_OUT pin is unique and common to all functionalities, so if several 
    functionalities are configured in exit mode, the MCU has to enquire MFX about  
    the IRQ source (see BSP_IO_ITGetStatus). Communication with Mfx is done by I2C. 
    Often the sw requires ISRs (irq service routines) to be quick while communication 
    with I2C can be considered relatively long (hundreds of usec depending on I2C clk). 
    In order to avoid to use "blocking I2C communication" on interrupt service routines 
    it's suggested (as alternative to this implementation) to use dedicated semaphore*/

    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    
    HID_DEMO_ProbeKey(JoyState); 
    
    switch(JoyState)
    {
    case JOY_LEFT:
      LCD_LOG_ScrollBack();
      break;
           
    case JOY_RIGHT:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }
    /* Clear joystick interrupt pending bits */
    BSP_IO_ITClear();
    osSemaphoreRelease(MenuEvent);
  }
}

/**
  * @brief  Select the type of device
  * @param  None
  * @retval None
  */
static void HdmiCec_SelectDevice(void)
{
  JOYState_TypeDef JoyKey;

  BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"Select your CEC Device Type", LEFT_MODE);
  BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"RIGHT --> Recording", LEFT_MODE);
  BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"LEFT --> Tuner", LEFT_MODE);
  BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"UP   --> Playback", LEFT_MODE);
  BSP_LCD_DisplayStringAt(20, 175, (uint8_t *)"DOWN --> AudioSystem", LEFT_MODE);
  
  do
  {
    JoyKey = BSP_JOY_GetState();
  } while(JoyKey == JOY_NONE);
  
  switch(JoyKey)
  {
  case JOY_DOWN :
    DeviceType = HDMI_CEC_AUDIOSYSTEM;
    BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"Device selected : AudioSystem", LEFT_MODE);
    break;
  case JOY_LEFT :
    DeviceType = HDMI_CEC_TUNER;
    BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"Device selected : Tuner", LEFT_MODE);
    break;
  case JOY_RIGHT :
    DeviceType = HDMI_CEC_RECORDING;
    BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"Device selected : Recording", LEFT_MODE);
    break;
  case JOY_UP :
    DeviceType = HDMI_CEC_PLAYBACK;
    BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"Device selected : Playback", LEFT_MODE);
    break;
  default :
    DeviceType = HDMI_CEC_TV;
    BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"No device selected (TV by default)", LEFT_MODE);
  }

}

void HID_Joysticky(void)
{
  static JOYState_TypeDef JoyState = JOY_NONE;
 
    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    
    HID_DEMO_ProbeKey(JoyState); 
    
    switch(JoyState)
    {
    case JOY_LEFT:
      LCD_LOG_ScrollBack();
      break;     
    
    case JOY_RIGHT:
      LCD_LOG_ScrollForward();
      break;          
      
    default:
      break;           
    }
}

/**
  * @brief  EXTI line detection callbacks.
  * @param  GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
  static JOYState_TypeDef JoyState = JOY_NONE;
  static uint32_t debounce_time = 0;
  
  if(GPIO_Pin == GPIO_PIN_2)
  {    
    /* Get the Joystick State */
    JoyState = BSP_JOY_GetState();
    
    /* Clear joystick interrupt pending bits */
    BSP_IO_ITClear(JOY_ALL_PINS);
    
    if(mtp_select_mode == MTP_SELECT_MENU)
    {  
      MTP_MenuProbeKey(JoyState); 
      
      switch(JoyState)
      {
      case JOY_LEFT:
        LCD_LOG_ScrollBack();
        break;
             
      case JOY_RIGHT:
        LCD_LOG_ScrollForward();
        break;          
        
      default:
        break;           
      }
    }
    else if(mtp_select_mode == MTP_PLAYBACK_CONTROL)
    {
      AUDIO_PlaybackProbeKey(JoyState);
    }
  }

  if(mtp_demo.state == MTP_DEMO_PLAYBACK)
  {
    if(GPIO_Pin == KEY_BUTTON_PIN)
    { 
      /* Prevent debounce effect for user key */
      if((HAL_GetTick() - debounce_time) > 50)
      {
        debounce_time = HAL_GetTick();
      }
      else
      {
        return;
      }
      
      /* Change the selection type */
      if(mtp_select_mode == MTP_SELECT_MENU)
      {
        MTP_ChangeSelectMode(MTP_PLAYBACK_CONTROL); 
      }
      else if(mtp_select_mode == MTP_PLAYBACK_CONTROL)
      {       
       AUDIO_Stop();
      }
    }
  }
}

/**
  * @brief  Enter Calibration menu to correct ICError and Capacitance55RH values
  * @param  None
  * @retval None 
  */
static void Calibration_Menu(void)
{
  uint8_t exitmenu = 0;
  uint8_t LCDstr[20] = {0};
  
  /*##-1- Display messages on LCD ############################################*/  
  /* Set the LCD Text Color */
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE); 
  BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
  
  /* Display Calibration Screen */
  BSP_LCD_DisplayStringAt(0, 115, (uint8_t*)"Calibration steps: ", CENTER_MODE);
  BSP_LCD_DisplayStringAt(60, 145, (uint8_t *)"1. Set JP19 to REF  ", LEFT_MODE);
  BSP_LCD_DisplayStringAt(60, 160, (uint8_t *)"2. Press Joystick Sel push-button ", LEFT_MODE);

  /*##-2- Calibration Phases #################################################*/  
  /* ------------- First step calibration using reference capacitance ----- */
  while (exitmenu != 1)
  { 
    if (BSP_JOY_GetState() == JOY_SEL) 
    {
      /* Get ICError for reference capacitance */
      /* TriggerTime = (AvrgICReadValue - ICError)/SystemCoreClock
      * TriggerTime = RES * REFCAP * ln(VDD/(VDD - VREF))
      * @VREF = 2.086V (generated by DAC),  ln(VDD/(VDD - VREF)) is ~ 1
      *  ==> TriggerTime = RES * REFCAP
      *  Then RES * REFCAP = (AvrgICReadValue - ICError)/SystemCoreClock
      *  ==>  ICError = AvrgICReadValue - REFCAP * RES * SystemCoreClock
      */
      ICError = (uint16_t) (AvrgICReadValue-REFCAP*RES*SystemCoreClock);

      /* Set exitmenu to 1 */
      exitmenu = 1;
    }
  }

  /* --------------- Second step calibration using reference humidity ------- */
  exitmenu = 0;
  /* Clear Calibration Screen */
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE); 
  BSP_LCD_SetTextColor(LCD_COLOR_WHITE);    
  BSP_LCD_FillRect(12, 92, BSP_LCD_GetXSize()- 24, BSP_LCD_GetYSize() - 104);

  /* Set the LCD Text Color */
  BSP_LCD_SetTextColor(LCD_COLOR_BLACK);    

  BSP_LCD_DisplayStringAt(0, 100, (uint8_t *)"Now set JP19 to HUM ", CENTER_MODE);
  BSP_LCD_DisplayStringAt(0, 115, (uint8_t *)"and set current humidity value", CENTER_MODE);
  BSP_LCD_DisplayStringAt(0, 130, (uint8_t *)"using Up/Down keys", CENTER_MODE);
  BSP_LCD_DisplayStringAt(14, 190, (uint8_t *)"Joystick Sel push-button: Apply   ", LEFT_MODE);
  BSP_LCD_DisplayStringAt(14, 205, (uint8_t *)"Key push-button: Cancel  ", LEFT_MODE);
  
  /* Set the LCD Text Color for Humidity value */
  BSP_LCD_SetTextColor(LCD_COLOR_RED);  

  /* Wait for SEL button to be released */
  while (BSP_JOY_GetState() != JOY_NONE); 
    
  while (exitmenu != 1)
  {
    if ((BSP_JOY_GetState() == JOY_UP) && (DisplayValue<99))
    {
      /* Wait for UP button to be released */
      while (BSP_JOY_GetState() != JOY_NONE);
      DisplayValue++;
      UpdateDisplayValue = 1;
    }
    if ((BSP_JOY_GetState() == JOY_DOWN) && (DisplayValue>0))
    {
      /* Wait for DOWN button to be released */
      while (BSP_JOY_GetState() != JOY_NONE);
      DisplayValue--;
      UpdateDisplayValue = 1;
    }
    
    if (UpdateDisplayValue)
    {
      UpdateDisplayValue = 0;
      /* Display humidity value on LCD Line 4 */ 
      sprintf((char*)LCDstr, "        %lu %%       ", DisplayValue);
      BSP_LCD_DisplayStringAt(0, 160, (uint8_t*) LCDstr, CENTER_MODE);
    }

    if (BSP_JOY_GetState() == JOY_SEL)
    {
      /* Calculate Trigger Time Value */
      TriggerTime = (float) (AvrgICReadValue-ICError)/SystemCoreClock;
      
      /* Calculate Capacitance Value */
      Capacitance = (float) TriggerTime/RES;
      
      /* Update Capacitance55RH value: capacitance @ 55% Relative Humidity */
      Capacitance55RH= Capacitance/(P3 * pow(DisplayValue,3) + 
                                    P2 * pow(DisplayValue,2) + 
                                    P1 * DisplayValue + 
//.........这里部分代码省略.........