// -----------------------------------------------------------------------------
/// @file  Displays.c
/// @brief Description
// -----------------------------------------------------------------------------
//  Micro-Key bv
//  Industrieweg 28, 9804 TG Noordhorn
//  Postbus 92, 9800 AB Zuidhorn
//  The Netherlands
//  Tel: +31 594 503020
//  Fax: +31 594 505825
//  Email: support@microkey.nl
//  Web: www.microkey.nl
// -----------------------------------------------------------------------------
/// $Revision$
/// $Author$
/// $Date$
//  (c) 2017 Micro-Key bv
// -----------------------------------------------------------------------------

/// @file Displays.c
/// @ingroup {group_name}


// -----------------------------------------------------------------------------
// Include files
// -----------------------------------------------------------------------------

#include <stdbool.h>

#include "stm32f10x.h"
#include "Displays.h"
#include "hsb-mrts.h"

#include "platform.h"
#include "nhd0420.h"
#include "rtc.h"
// -----------------------------------------------------------------------------
// Constant and macro definitions
// -----------------------------------------------------------------------------

#define MAINDISP_MAX_CHAR_CHUNK        (10)
#define MAINDISP_REFRESH_FEED_MS       (1000)
#define MAINDISP_REFRESH_PERIOD        (5000)

#define MAINDISP_DEFAULT_BRIGHTNESS    (NHD0420_BRIGHTNESS_MAX)      // Set to MAX to avoid background light issue
#define MAINDISP_DEFAULT_CONTRAST      (40)
// -----------------------------------------------------------------------------
// Type definitions
// -----------------------------------------------------------------------------



// -----------------------------------------------------------------------------
// File-scope variables
// -----------------------------------------------------------------------------

static struct Display _mainDisplay     = {.initialized = false};
struct Display* const mainDisplay      = &_mainDisplay;

// -----------------------------------------------------------------------------
// Function declarations
// -----------------------------------------------------------------------------

static ErrorStatus Displays_initMainDisplay(void);
static ErrorStatus Displays_mainDisplayObserverFromISR(const void* const data);

// -----------------------------------------------------------------------------
// Function definitions
// -----------------------------------------------------------------------------

ErrorStatus Displays_construct(void)
{
   ErrorStatus returnValue = SUCCESS;

   if (returnValue == SUCCESS)
   {
      returnValue = Displays_initMainDisplay();
   }

   return returnValue;
}


extern void Displays_destruct(void)
{
   Observable_deleteObserver(RTC_getObservable(rtc), Displays_mainDisplayObserverFromISR);
   Display_destruct(mainDisplay);
}


static ErrorStatus Displays_initMainDisplay(void)
{
   ErrorStatus returnValue = SUCCESS;

   if (returnValue == SUCCESS)
   {
      returnValue = Display_construct(mainDisplay, &nhd0420->displayDevice, HSB_MAINDISP_TASK_PRIORITY, HSB_MAINDISP_TASK_STACKSIZE, MAINDISP_MAX_CHAR_CHUNK, MAINDISP_REFRESH_FEED_MS, MAINDISP_REFRESH_PERIOD);
   }

   if (returnValue == SUCCESS)
   {
      returnValue = Observable_addObserver(RTC_getObservable(rtc), Displays_mainDisplayObserverFromISR);
   }

   if (returnValue == SUCCESS)
   {
      returnValue = Display_setBlinkingCursorState(mainDisplay, OFF);
   }

   if (returnValue == SUCCESS)
   {
      returnValue = Display_clearScreen(mainDisplay);
   }

   if (returnValue == SUCCESS)
   {
      returnValue = Display_setBrightness(mainDisplay, MAINDISP_DEFAULT_BRIGHTNESS);
   }

   if (returnValue == SUCCESS)
   {
      returnValue = Display_setContrast(mainDisplay, MAINDISP_DEFAULT_CONTRAST);
   }

   return returnValue;
}


static ErrorStatus Displays_mainDisplayObserverFromISR(const void* const data)
{
   Display_feedRefreshCounterFromISR(mainDisplay);
   return SUCCESS;
}