/**************************************************************************************************
  Filename:       OnBoard.c
  Revised:        $Date: 2009-03-12 16:26:27 -0700 (Thu, 12 Mar 2009) $
  Revision:       $Revision: 19405 $

  Description:    This file contains the UI and control for the
                  peripherals on the EVAL development board
  Notes:          This file targets the Chipcon CC2530


  Copyright 2005-2008 Texas Instruments Incorporated. All rights reserved.

  IMPORTANT: Your use of this Software is limited to those specific rights
  granted under the terms of a software license agreement between the user
  who downloaded the software, his/her employer (which must be your employer)
  and Texas Instruments Incorporated (the "License").  You may not use this
  Software unless you agree to abide by the terms of the License. The License
  limits your use, and you acknowledge, that the Software may not be modified,
  copied or distributed unless embedded on a Texas Instruments microcontroller
  or used solely and exclusively in conjunction with a Texas Instruments radio
  frequency transceiver, which is integrated into your product.  Other than for
  the foregoing purpose, you may not use, reproduce, copy, prepare derivative
  works of, modify, distribute, perform, display or sell this Software and/or
  its documentation for any purpose.

  YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
  PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
  INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
  NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
  TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT,
  NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER
  LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
  INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE
  OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT
  OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
  (INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.

  Should you have any questions regarding your right to use this Software,
  contact Texas Instruments Incorporated at www.TI.com.
**************************************************************************************************/

/*********************************************************************
 * INCLUDES
 */

#include "ZComDef.h"
#include "OnBoard.h"
#include "OSAL.h"
#include "MT.h"
#include "MT_SYS.h"
#include "DebugTrace.h"

/* Hal */
#include "hal_lcd.h"
#include "hal_mcu.h"
#include "hal_timer.h"
#include "hal_key.h"
#include "hal_led.h"

/*********************************************************************
 * MACROS
 */

/*********************************************************************
 * CONSTANTS
 */

// Task ID not initialized
#define NO_TASK_ID 0xFF

// Minimum length RAM "pattern" for Stack check
#define MIN_RAM_INIT 12

/*********************************************************************
 * TYPEDEFS
 */

/*********************************************************************
 * GLOBAL VARIABLES
 */

uint8 OnboardKeyIntEnable;

// 64-bit Extended Address of this device
uint8 aExtendedAddress[8];

/*********************************************************************
 * EXTERNAL VARIABLES
 */

/*********************************************************************
 * EXTERNAL FUNCTIONS
 */

extern uint8 macMcuRandomByte(void);

/*********************************************************************
 * LOCAL VARIABLES
 */

// Registered keys task ID, initialized to NOT USED.
static byte registeredKeysTaskID = NO_TASK_ID;

/*********************************************************************
 * LOCAL FUNCTIONS
 */

static void ChkReset( void );

/*********************************************************************
 * @fn      InitBoard()
 * @brief   Initialize the CC2420DB Board Peripherals
 * @param   level: COLD,WARM,READY
 * @return  None
 */
void InitBoard( byte level )
{
  if ( level == OB_COLD )
  {
    // Interrupts off
    osal_int_disable( INTS_ALL );
    // Turn all LEDs off
    HalLedSet( HAL_LED_ALL, HAL_LED_MODE_OFF );
    // Check for Brown-Out reset
    ChkReset();
  }
  else  // !OB_COLD
  {
#ifdef ZTOOL_PORT
    MT_SysResetInd();
#endif

     /* Initialize Key stuff */
    OnboardKeyIntEnable = HAL_KEY_INTERRUPT_DISABLE;
    HalKeyConfig( OnboardKeyIntEnable, OnBoard_KeyCallback);
  }
}

/*********************************************************************
 * @fn      ChkReset()
 * @brief   Check reset bits - if reset cause is unknown, assume a
 *          brown-out (low power), assume batteries are not reliable,
 *          hang in a loop and sequence through the LEDs.
 * @param   None
 * @return  None
 *********************************************************************/
void ChkReset( void )
{
  uint8 led;
  uint8 rib;

  // Isolate reset indicator bits
  rib = SLEEPSTA & LRESET;

  if ( rib == RESETPO )
  {
    // Put code here to handle Power-On reset
  }
  else if ( rib == RESETEX )
  {
    // Put code here to handle External reset
  }
  else if ( rib == RESETWD )
  {
    // Put code here to handle WatchDog reset
  }
  else
  {
    // Unknown, hang and blink
    HAL_DISABLE_INTERRUPTS();
    led = HAL_LED_4;
    while ( 1 ) {
      HalLedSet( led, HAL_LED_MODE_ON );
      MicroWait( 62500 );
      MicroWait( 62500 );
      HalLedSet( led, HAL_LED_MODE_OFF );
      MicroWait( 37500 );
      MicroWait( 37500 );
      if ( !(led >>= 1) )
        led = HAL_LED_4;
    }
  }
}

/*********************************************************************
 *                        "Keyboard" Support
 *********************************************************************/

/*********************************************************************
 * Keyboard Register function
 *
 * The keyboard handler is setup to send all keyboard changes to
 * one task (if a task is registered).
 *
 * If a task registers, it will get all the keys. You can change this
 * to register for individual keys.
 *********************************************************************/
byte RegisterForKeys( byte task_id )
{
  // Allow only the first task
  if ( registeredKeysTaskID == NO_TASK_ID )
  {
    registeredKeysTaskID = task_id;
    return ( true );
  }
  else
    return ( false );
}

/*********************************************************************
 * @fn      OnBoard_SendKeys
 *
 * @brief   Send "Key Pressed" message to application.
 *
 * @param   keys  - keys that were pressed
 *          state - shifted
 *
 * @return  status
 *********************************************************************/
byte OnBoard_SendKeys( byte keys, byte state )
{
  keyChange_t *msgPtr;

  if ( registeredKeysTaskID != NO_TASK_ID )
  {
    // Send the address to the task
    msgPtr = (keyChange_t *)osal_msg_allocate( sizeof(keyChange_t) );
    if ( msgPtr )
    {
      msgPtr->hdr.event = KEY_CHANGE;
      msgPtr->state = state;
      msgPtr->keys = keys;

      osal_msg_send( registeredKeysTaskID, (uint8 *)msgPtr );
    }
    return ( ZSuccess );
  }
  else
    return ( ZFailure );
}

/*********************************************************************
 * @fn      OnBoard_KeyCallback
 *
 * @brief   Callback service for keys
 *
 * @param   keys  - keys that were pressed
 *          state - shifted
 *
 * @return  void
 *********************************************************************/
void OnBoard_KeyCallback ( uint8 keys, uint8 state )
{
  uint8 shift;
  
  (void)state;  // Intentionally unreferenced parameter

  // shift key (S1) is used to generate key interrupt
  // applications should not use S1 when key interrupt is enabled
  shift = (OnboardKeyIntEnable == HAL_KEY_INTERRUPT_ENABLE) ? false : ((keys & HAL_KEY_SW_6) ? true : false);

  if ( OnBoard_SendKeys( keys, shift ) != ZSuccess )
  {
    // Process SW1 here
    if ( keys & HAL_KEY_SW_1 )  // Switch 1
    {
    }
    // Process SW2 here
    if ( keys & HAL_KEY_SW_2 )  // Switch 2
    {
    }
    // Process SW3 here
    if ( keys & HAL_KEY_SW_3 )  // Switch 3
    {
    }
    // Process SW4 here
    if ( keys & HAL_KEY_SW_4 )  // Switch 4
    {
    }
    // Process SW5 here
    if ( keys & HAL_KEY_SW_5 )  // Switch 5
    {
    }
    // Process SW6 here
    if ( keys & HAL_KEY_SW_6 )  // Switch 6
    {
    }
  }
}

/*********************************************************************
 *                    SLEEP MANAGEMENT FUNCTIONS
 *
 * These functions support processing of MAC and ZStack power mode
 * transitions, used when the system goes into or awakes from sleep.
 */

 /*********************************************************************
 * @fn      OnBoard_stack_used()
 *
 * @brief
 *
 *   Runs through the stack looking for touched memory.
 *
 * @param   none
 *
 * @return  number of bytes used by the stack
 *********************************************************************/
uint16 OnBoard_stack_used( void )
{
  byte *pStack = (byte*)MCU_RAM_END;
  byte *pHold;
  byte found = false;
  byte x;

  // Look from the end of RAM for MIN_RAM_INIT number of "pattern" bytes
  // This should be the high water stack mark.
  while ( !found && pStack )
  {
    // Found an init value?
    if ( *pStack == STACK_INIT_VALUE )
    {
      // Look for a bunch in a row
      pHold = pStack;
      for ( x = 0; x < MIN_RAM_INIT; x++ )
      {
        if ( *pHold != STACK_INIT_VALUE )
          break;
        else
          pHold--;
      }
      // Did we find the needed minimum number in a row
      if ( x >= MIN_RAM_INIT )
        found = true;
    }
    if ( !found )
      pStack--;
  }

  if ( pStack )
    return ( (uint16)((byte*)MCU_RAM_END - pStack) );
  else
    return ( 0 );
}

/*********************************************************************
 * @fn      _itoa
 *
 * @brief   convert a 16bit number to ASCII
 *
 * @param   num -
 *          buf -
 *          radix -
 *
 * @return  void
 *
 *********************************************************************/
void _itoa(uint16 num, byte *buf, byte radix)
{
  char c,i;
  byte *p, rst[5];

  p = rst;
  for ( i=0; i<5; i++,p++ )
  {
    c = num % radix;  // Isolate a digit
    *p = c + (( c < 10 ) ? '0' : '7');  // Convert to Ascii
    num /= radix;
    if ( !num )
      break;
  }

  for ( c=0 ; c<=i; c++ )
    *buf++ = *p--;  // Reverse character order

  *buf = '\0';
}

/*********************************************************************
 * @fn        Onboard_rand
 *
 * @brief    Random number generator
 *
 * @param   none
 *
 * @return  uint16 - new random number
 *
 *********************************************************************/
uint16 Onboard_rand( void )
{
  uint16 randNum;

  randNum = macMcuRandomByte();
  randNum += (macMcuRandomByte() << 8);
  return ( randNum );
}

/*********************************************************************
 * @fn        Onboard_wait
 *
 * @brief    Random number generator
 *
 * @param   uint16 - time to wait
 *
 * @return  none
 *
 *********************************************************************/
void Onboard_wait( uint16 timeout )
{
  while (timeout--)
  {
    asm("NOP");
    asm("NOP");
    asm("NOP");
  }
}

/*********************************************************************
 *                    EXTERNAL I/O FUNCTIONS
 *
 * User defined functions to control external devices. Add your code
 * to the following functions to control devices wired to DB outputs.
 *
 *********************************************************************/

void BigLight_On( void )
{
  // Put code here to turn on an external light
}

void BigLight_Off( void )
{
  // Put code here to turn off an external light
}

void BuzzerControl( byte on )
{
  // Put code here to turn a buzzer on/off
  (void)on;
}

void Dimmer( byte lvl )
{
  // Put code here to control a dimmer
  (void)lvl;
}

// No dip switches on this board
byte GetUserDipSw( void )
{
  return 0;
}

/*********************************************************************
*********************************************************************/