/**
  *******************************************************************************
  *
  * @file    p2p_ekeying.c
  * @authors fatih.bellachia@lapp.in2p3.fr
  * @date    30/09/2015
  * @version v0r1
  * @brief   Example of backplane E-Keying registration.
  *          For more information see:
  *            3.7.2 Point-to-Point E-Keying 
  *            PICMG 3.0 R3.0 ATCA Base Specification
  *
  *******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include <stdio.h>
#include <stdbool.h>
#include <debug/debug.h>
#include <led/led.h>
#include <ekeying/ekeying.h>
#include <module/module.h>

/** @addtogroup Component
  * @{
  */

/** @defgroup Backplane_E-Keying
  * @{
  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/
// Must fit with the Link Descriptors defined in PICMG Board
// Point-to-Point Connectivity Record information in the FRU
#define BASE_IF_CH1_PORT0 0x00001101
#define BASE_IF_CH2_PORT0 0x00001102

/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

/* Private function prototypes -----------------------------------------------*/

/* Public variables ----------------------------------------------------------*/

/* Private functions ---------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
static bool SetPortStateCallback(linkDescriptor linkInfo, char state)
/*----------------------------------------------------------------------------*/
{
  LED_Mask_t eLedMask;

  dprintf(DBG_LVL1, "link-info(0x%08x) state(%d)\n", linkInfo, state);

  //
  // Emulate activation/deactivation of Link
  //   - Port enabled: LED blinking
  //   - Port disabled: LED Off
  //

  // Check Link Descriptor
  if (linkInfo == BASE_IF_CH1_PORT0)
    eLedMask = LED_1;
  else if (linkInfo == BASE_IF_CH2_PORT0)
    eLedMask = LED_2;
  else
    return true;

  // Change state of Link
  if (state == 1)
    LED_Blink(eLedMask, 200, 1800, 0);
  else
    LED_Off(eLedMask);

  return true;
}

/* Public functions ----------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
bool P2PEKeyingInit(void)
/*----------------------------------------------------------------------------*/
{
  bool bRtn = true;

  bRtn &= EKRegisterFunc(BASE_IF_CH1_PORT0, SetPortStateCallback);
  bRtn &= EKRegisterFunc(BASE_IF_CH2_PORT0, SetPortStateCallback);

  return bRtn;
}

MODULE_BEGIN_DECL(ekeying, 1)
  MODULE_NAME("Point-to-Point E-Keying")
  MODULE_AUTHOR("fatih.bellachia@lapp.in2p3.fr")
  MODULE_INIT(P2PEKeyingInit)
  MODULE_CLEANUP(NULL)
  MODULE_PROCESS(NULL, NULL)
MODULE_END_DECL

/**
  * @}
  */

/**
  * @}
  */