hsb/S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/HAL/src/storm700.c

// -----------------------------------------------------------------------------
/// @file  storm700.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 storm700.c
/// @ingroup {group_name}


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

#include "storm700.h"

#include "keypadMatrix.h"

// -----------------------------------------------------------------------------
// Constant and macro definitions
// -----------------------------------------------------------------------------



// -----------------------------------------------------------------------------
// Type definitions
// -----------------------------------------------------------------------------



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

static char keyLookupTable[STORM700_NUMBER_OF_ROWS][STORM700_NUMBER_OF_COLUMNS] =
{
         { '1', '2', '3', 'X' },
         { '4', '5', '6', 'U' },
         { '7', '8', '9', 'D' },
         { 'L', '0', 'R', 'E' }
};

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

static ErrorStatus read(const struct KeyboardDevice* self, char* buffer, Keypad_KeyState* keyState);

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

ErrorStatus Storm700_construct(struct Storm700* self, const struct IODevice* device)
{
   ErrorStatus returnValue = SUCCESS;

   if (!self->initialized)
   {
      if (device != NULL)
      {
         self->device = device;

         struct KeyboardDeviceParameters kbParameters;
         kbParameters.numberOfKeys = STORM700_NUMBER_OF_ROWS * STORM700_NUMBER_OF_COLUMNS;

         KeyboardDevice_construct(&self->keyboardDevice, &kbParameters, read);

         self->initialized = true;

      }
   }

   return returnValue;
}


void Storm700_destruct(struct Storm700* self)
{
   self->initialized= false;
   self->device = NULL;
}



ErrorStatus Storm700_readKey(const struct Storm700* self, char* key, Keypad_KeyState* keyState)
{
   ErrorStatus returnValue = SUCCESS;

   if (self->initialized)
   {
      size_t actualLength;
      char buffer[sizeof(struct KeypadQueueItem) / sizeof(char)];
      returnValue = IODevice_read(self->device, buffer, sizeof(struct KeypadQueueItem) / sizeof(char), &actualLength);

      if (returnValue == SUCCESS)
      {
         struct KeypadQueueItem* rxQueueItem = (struct KeypadQueueItem*)buffer;

         *key = keyLookupTable[rxQueueItem->rowCoordinate][rxQueueItem->columnCoordinate];
         *keyState = rxQueueItem->keyEvent;
      }
      else
      {
         returnValue = ERROR;
      }
   }
   else
   {
      returnValue = ERROR;
   }

   return returnValue;
}


static ErrorStatus read(const struct KeyboardDevice* self, char* buffer, Keypad_KeyState* keyState)
{
   return Storm700_readKey((const struct Storm700*)self, buffer, keyState);
}