TEST/ZStack-2.5.1a/Components/mac/low_level/srf04/single_chip/mac_rffrontend.c

/**************************************************************************************************
  Filename:       mac_rffrontend.c
  Revised:        $Date: 2011-07-12 09:54:47 -0700 (Tue, 12 Jul 2011) $
  Revision:       $Revision: 26749 $

  Description:    RF frontend configuration module


  Copyright 2009-2011 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
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  YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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**************************************************************************************************/

/* ------------------------------------------------------------------------------------------------
 *                                             Includes
 * ------------------------------------------------------------------------------------------------
 */
#include "hal_types.h"
#include "hal_board_cfg.h"
#include "hal_assert.h"
#include "mac_api.h"
#include "mac_radio_defs.h"


/* ------------------------------------------------------------------------------------------------
 *                                        Global Constants
 * ------------------------------------------------------------------------------------------------
 */

/* The following table index definitions are specific to a particular MAC build */
#define MAC_CC2591_TX_PWR_TABLE_IDX   1
#define MAC_CC2590_TX_PWR_TABLE_IDX   2
#define MAC_CC2591_HGM_RSSI_ADJ_IDX   1
#define MAC_CC2591_LGM_RSSI_ADJ_IDX   2
#define MAC_CC2590_HGM_RSSI_ADJ_IDX   3
#define MAC_CC2590_LGM_RSSI_ADJ_IDX   4

/* ------------------------------------------------------------------------------------------------
 *                                           MACROS
 * ------------------------------------------------------------------------------------------------
 */

/* ------------------------------------------------------------------------------------------------
 *                                       Function Prototypes
 * ------------------------------------------------------------------------------------------------
 */
void MAC_RfFrontendSetup(void);

/**************************************************************************************************
 * @fn          MAC_RfFrontendSetup
 *
 * @brief       Setup RF frontend.
 *
 * @param       none
 *
 * @return      none
 **************************************************************************************************
 */
void MAC_RfFrontendSetup(void)
{
  /* CC2591 HGM pin control configuration. 
   *   P0_7 -> HGM
   */
  HAL_PA_LNA_RX_HGM();
  
  /* Raises the CCA threshold to about -70 dBm input level.
   */
  CCACTRL0 = CCA_THR_HGM;

  /* Select power register value table and RSSI adjustment value table */
  MAC_SetRadioRegTable(MAC_CC2591_TX_PWR_TABLE_IDX, MAC_CC2591_HGM_RSSI_ADJ_IDX);
}

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