/**************************************************************************************************
  Filename:       hal_drivers.c
  Revised:        $Date: 2007-07-06 10:42:24 -0700 (Fri, 06 Jul 2007) $
  Revision:       $Revision: 13579 $

  Description:    This file contains the interface to the Drivers Service.


  Copyright 2005-2007 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 "hal_types.h"
#include "OSAL.h"
#include "hal_drivers.h"
#include "hal_adc.h"
#if (defined HAL_DMA) && (HAL_DMA == TRUE)
  #include "hal_dma.h"
#endif
#include "hal_flash.h"
#include "hal_key.h"
#include "hal_lcd.h"
#include "hal_led.h"
#include "hal_timer.h"
#include "hal_uart.h"
#include "hal_sleep.h"
#if (defined HAL_AES) && (HAL_AES == TRUE)
  #include "hal_aes.h"
#endif

#if (defined HAL_SPI) && (HAL_SPI == TRUE)
  #include "hal_spi.h"
#endif

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



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


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


/**************************************************************************************************
 *                                      GLOBAL VARIABLES
 **************************************************************************************************/
uint8 Hal_TaskID;

extern void HalLedUpdate( void ); /* Notes: This for internal only so it shouldn't be in hal_led.h */

/**************************************************************************************************
 *                                      FUNCTIONS - API
 **************************************************************************************************/

/**************************************************************************************************
 * @fn      Hal_Init
 *
 * @brief   Hal Initialization function.
 *
 * @param   task_id - Hal TaskId
 *
 * @return  None
 **************************************************************************************************/
void Hal_Init( uint8 task_id )
{
  /* Register task ID */
  Hal_TaskID = task_id;
}

/**************************************************************************************************
 * @fn      Hal_DriverInit
 *
 * @brief   Initialize HW - These need to be initialized before anyone.
 *
 * @param   task_id - Hal TaskId
 *
 * @return  None
 **************************************************************************************************/
void HalDriverInit (void)
{
  /* TIMER */
#if (defined HAL_TIMER) && (HAL_TIMER == TRUE)
  HalTimerInit();
#endif

  /* ADC */
#if (defined HAL_ADC) && (HAL_ADC == TRUE)
  HalAdcInit();
#endif

  /* DMA */
#if (defined HAL_DMA) && (HAL_DMA == TRUE)
  // Must be called before the init call to any module that uses DMA.
  HalDmaInit();
#endif

  /* Flash */
#if (defined HAL_FLASH) && (HAL_FLASH == TRUE)
  // Must be called before the init call to any module that uses Flash access or NV.
  HalFlashInit();
#endif

  /* AES */
#if (defined HAL_AES) && (HAL_AES == TRUE)
  HalAesInit();
#endif

  /* LCD */
#if (defined HAL_LCD) && (HAL_LCD == TRUE)
  HalLcdInit();
#endif

  /* LED */
#if (defined HAL_LED) && (HAL_LED == TRUE)
  HalLedInit();
#endif

  /* UART */
#if (defined HAL_UART) && (HAL_UART == TRUE)
  HalUARTInit();
#endif

  /* KEY */
#if (defined HAL_KEY) && (HAL_KEY == TRUE)
  HalKeyInit();
#endif

  /* SPI */
#if (defined HAL_SPI) && (HAL_SPI == TRUE)
  HalSpiInit();
#endif
}


/**************************************************************************************************
 * @fn      Hal_ProcessEvent
 *
 * @brief   Hal Process Event
 *
 * @param   task_id - Hal TaskId
 *          events - events
 *
 * @return  None
 **************************************************************************************************/
uint16 Hal_ProcessEvent( uint8 task_id, uint16 events )
{
  uint8 *msgPtr;
  
  (void)task_id;  // Intentionally unreferenced parameter

  if ( events & SYS_EVENT_MSG )
  {
    msgPtr = osal_msg_receive(Hal_TaskID);

    while (msgPtr)
    {
      /* Do something here - for now, just deallocate the msg and move on */

      /* De-allocate */
      osal_msg_deallocate( msgPtr );
      /* Next */
      msgPtr = osal_msg_receive( Hal_TaskID );
    }
    return events ^ SYS_EVENT_MSG;
  }

  if ( events & HAL_LED_BLINK_EVENT )
  {
#if (defined (BLINK_LEDS)) && (HAL_LED == TRUE)
    HalLedUpdate();
#endif /* BLINK_LEDS && HAL_LED */
    return events ^ HAL_LED_BLINK_EVENT;
  }

  if (events & HAL_KEY_EVENT)
  {

#if (defined HAL_KEY) && (HAL_KEY == TRUE)
    /* Check for keys */
    HalKeyPoll();

    /* if interrupt disabled, do next polling */
    if (!Hal_KeyIntEnable)
    {
      osal_start_timerEx( Hal_TaskID, HAL_KEY_EVENT, 100);
    }
#endif // HAL_KEY

    return events ^ HAL_KEY_EVENT;
  }

#ifdef POWER_SAVING
  if ( events & HAL_SLEEP_TIMER_EVENT )
  {
    halRestoreSleepLevel();
    return events ^ HAL_SLEEP_TIMER_EVENT;
  }
#endif

  /* Nothing interested, discard the message */
  return 0;

}

/**************************************************************************************************
 * @fn      Hal_ProcessPoll
 *
 * @brief   This routine will be called by OSAL to poll UART, TIMER...
 *
 * @param   task_id - Hal TaskId
 *
 * @return  None
 **************************************************************************************************/
void Hal_ProcessPoll ()
{

  /* Timer Poll */
#if (defined HAL_TIMER) && (HAL_TIMER == TRUE)
  HalTimerTick();
#endif

  /* UART Poll */
#if (defined HAL_UART) && (HAL_UART == TRUE)
  HalUARTPoll();
#endif

}


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

