Diff: RF_Drivers_Freescale/driverRFPhy.c

Revision:

12:4446d8228309

Parent:

9:904334e768eb

--- a/RF_Drivers_Freescale/driverRFPhy.c	Thu Mar 05 21:19:36 2015 +0000
+++ b/RF_Drivers_Freescale/driverRFPhy.c	Thu Mar 05 15:47:28 2015 -0600
@@ -1,118 +1,104 @@
-/*
- * driverRFPhy.c
- *
- *  Created on: 14 July 2014
- *      Author: mBed team
- */
-#include "arm_hal_interrupt.h"
-#include "arm_hal_phy.h"
-#include "driverRFPhy.h"
-//#include "driverAtmelRFInterface.h"
-#include <string.h>
-
-#include <stdio.h>
-
-#include "options.h"
-
-/*RF receive buffer*/
-static uint8_t rf_buffer[RF_BUFFER_SIZE];
-/*RF ACK receive buffer*/
-static uint8_t ack_rx_buf[5];
-/*ACK wait duration changes depending on data rate*/
-static uint16_t rf_ack_wait_duration = RF_ACK_WAIT_TIMEOUT;
+/*!
+* Copyright (c) 2015, Freescale Semiconductor, Inc.
+* All rights reserved.
+*
+* \file MCR20Drv.c
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* o Redistributions of source code must retain the above copyright notice, this list
+*   of conditions and the following disclaimer.
+*
+* o Redistributions in binary form must reproduce the above copyright notice, this
+*   list of conditions and the following disclaimer in the documentation and/or
+*   other materials provided with the distribution.
+*
+* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+*   contributors may be used to endorse or promote products derived from this
+*   software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
 
-static uint8_t radio_tx_power = 0x07;
-static uint8_t rf_channel;
-static uint8_t rf_tuned = 1;
-static uint8_t radio_rpc_value = 0xef;
-static uint8_t rf_use_front_end = 0;
-static uint8_t rf_use_antenna_diversity = 0;
-static uint8_t rf_csd_port = 0;
-static uint8_t rf_csd_pin = 0;
-static uint8_t rf_cps_port = 0;
-static uint8_t rf_cps_pin = 0;
-static uint8_t tx_sequence = 0xff;
-static uint8_t need_ack = 0;
-static uint8_t rf_rx_mode = 0;
-static uint8_t rf_flags = 0;
-static uint8_t rf_rnd_rssi = 0;
-static int8_t rf_radio_driver_id = -1;
-static phy_device_driver_s device_driver;
-static uint8_t atmel_MAC[8];
-static phy_device_channel_info_s channel_info;
-static uint8_t mac_tx_handle = 0;
 
-/*
- * \brief Function sets given RF flag on.
- *
- * \param x Given RF flag
- *
- * \return none
- */
-void rf_flags_set(uint8_t x)
-{
-    rf_flags |= x;
-}
+/*****************************************************************************
+*                               INCLUDED HEADERS                            *
+*---------------------------------------------------------------------------*
+* Add to this section all the headers that this module needs to include.    *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
+
+#include "arm_hal_phy.h"
+#include "arm_hal_interrupt.h"
+
 
-/*
- * \brief Function clears given RF flag on.
- *
- * \param x Given RF flag
- *
- * \return none
- */
-void rf_flags_clear(uint8_t x)
-{
-    rf_flags &= ~x;
-}
+/*****************************************************************************
+*                               PRIVATE VARIABLES                           *
+*---------------------------------------------------------------------------*
+* Add to this section all the variables and constants that have local       *
+* (file) scope.                                                             *
+* Each of this declarations shall be preceded by the 'static' keyword.      *
+* These variables / constants cannot be accessed outside this module.       *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
 
-/*
- * \brief Function checks if given RF flag is on.
- *
- * \param x Given RF flag
- *
- * \return states of the given flags
- */
-uint8_t rf_flags_check(uint8_t x)
-{
-    return (rf_flags & x);
-}
+static uint8_t mac_eui64[8];
+static phy_device_driver_s device_driver;
+static int8_t rf_radio_driver_id = -1;
+static phy_device_channel_info_s channel_info;
+
+/*****************************************************************************
+*                               PUBLIC VARIABLES                            *
+*---------------------------------------------------------------------------*
+* Add to this section all the variables and constants that have global      *
+* (project) scope.                                                          *
+* These variables / constants can be accessed outside this module.          *
+* These variables / constants shall be preceded by the 'extern' keyword in  *
+* the interface header.                                                     *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
 
-/*
- * \brief Function clears all RF flags.
- *
- * \param none
- *
- * \return none
- */
-void rf_flags_reset(void)
-{
-    rf_flags = 0;
-}
+/*****************************************************************************
+*                           PRIVATE FUNCTIONS PROTOTYPES                    *
+*---------------------------------------------------------------------------*
+* Add to this section all the functions prototypes that have local (file)   *
+* scope.                                                                    *
+* These functions cannot be accessed outside this module.                   *
+* These declarations shall be preceded by the 'static' keyword.             *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
 
-/*
- * \brief Function sets CPS and CSD pins of the Front end.
- *
- * \param none
- *
- * \return none
- */
-void rf_front_end_rx_lna(void)
-{
-        /* not supported in this version  */
-}
+/*****************************************************************************
+*                                PRIVATE FUNCTIONS                          *
+*---------------------------------------------------------------------------*
+* Add to this section all the functions that have local (file) scope.       *
+* These functions cannot be accessed outside this module.                   *
+* These definitions shall be preceded by the 'static' keyword.              *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
 
-/*
- * \brief Function clears CPS and CSD pins of the Front end.
- *
- * \param none
- *
- * \return none
- */
-void rf_front_end_sleep(void)
-{
-        /* not supported in this version  */
-}
+/*****************************************************************************
+*                             PUBLIC FUNCTIONS                              *
+*---------------------------------------------------------------------------*
+* Add to this section all the functions that have global (project) scope.   *
+* These functions can be accessed outside this module.                      *
+* These functions shall have their declarations (prototypes) within the     *
+* interface header file and shall be preceded by the 'extern' keyword.      *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
 
 /*
  * \brief Function initialises and registers the RF driver.
@@ -125,8 +111,8 @@
 {
     rf_init();
     /*Set pointer to MAC address*/
-    device_driver.PHY_MAC = atmel_MAC;
-    device_driver.driver_description = "ATMEL_MAC";
+    device_driver.PHY_MAC = mac_eui64;
+    device_driver.driver_description = "Freescale_MAC";
 #if PHY_LINK_15_4_2_4GHZ_TYPE
       /*Number of channels in PHY*/
         channel_info.channel_count = 16;
@@ -165,1073 +151,3 @@
     return rf_radio_driver_id;
 }
 
-/*
- * \brief Function returns the generated 8-bit random value for seeding Pseudo-random generator. This value was generated by reading noise from RF channel in RF initialisation.
- *
- * \param none
- *
- * \return random RSSI value
- */
-int8_t rf_read_random(void)
-{
-    return rf_rnd_rssi;
-}
-
-/*
- * \brief Function is a call back for ACK wait timeout.
- *
- * \param none
- *
- * \return none
- */
-void rf_ack_wait_timer_interrupt(void)
-{
-    arm_enter_critical();
-    /*Force PLL state*/
-    rf_if_change_trx_state(FORCE_PLL_ON);
-    rf_poll_trx_state_change(PLL_ON);
-    /*Start receiver in RX_AACK_ON state*/
-    rf_rx_mode = 0;
-    rf_flags_clear(RFF_RX);
-    rf_receive();
-    arm_exit_critical();
-}
-
-/*
- * \brief Function is a call back for calibration interval timer.
- *
- * \param none
- *
- * \return none
- */
-void rf_calibration_timer_interrupt(void)
-{
-    /*Calibrate RF*/
-    rf_calibration_cb();
-    /*Start new calibration timeout*/
-    rf_calibration_timer_start(RF_CALIBRATION_INTERVAL);
-}
-
-/*
- * \brief Function initialises the RF timer for ACK wait and calibration.
- *
- * \param none
- *
- * \return none
- */
-void rf_timer_init(void)
-{
-    rf_if_timer_init();
-}
-
-/*
- * \brief Function starts the ACK wait timeout.
- *
- * \param slots Given slots, resolution 50us
- *
- * \return none
- */
-void rf_ack_wait_timer_start(uint16_t slots)
-{
-    rf_if_ack_wait_timer_start(slots);
-}
-
-/*
- * \brief Function starts the calibration interval.
- *
- * \param slots Given slots, resolution 50us
- *
- * \return none
- */
-void rf_calibration_timer_start(uint32_t slots)
-{
-    rf_if_calibration_timer_start(slots);
-}
-
-/*
- * \brief Function stops the ACK wait timeout.
- *
- * \param none
- *
- * \return none
- */
-void rf_ack_wait_timer_stop(void)
-{
-    rf_if_ack_wait_timer_stop();
-}
-
-/*
- * \brief Function reads the MAC address array.
- *
- * \param ptr Pointer to read array
- *
- * \return none
- */
-void rf_read_mac_address(uint8_t *ptr)
-{
-    memcpy(ptr, atmel_MAC, 8);
-}
-
-/*
- * \brief Function sets the MAC address array.
- *
- * \param ptr Pointer to given MAC address array
- *
- * \return none
- */
-void rf_set_mac_address(const uint8_t *ptr)
-{
-    memcpy(atmel_MAC,ptr,8);
-}
-
-/*
- * \brief Function writes various RF settings in startup.
- *
- * \param none
- *
- * \return none
- */
-void rf_write_settings(void)
-{
-    int i, j = 0;
-    
-    arm_enter_critical();
-  
-  //printf("RF Write Settings: 1\r\n"); 
-    rf_if_write_rf_settings();
- 
-  //printf("RF Write Settings: 2\r\n");
-    /*Set output power*/
-    rf_if_write_set_tx_power_register(radio_tx_power);
- 
-  //printf("RF Write Settings: 3\r\n");
-    /*Set RPC register*/
-    rf_if_write_set_trx_rpc_register(radio_rpc_value);
- 
-  //printf("RF Write Settings: 4\r\n");
-    /*Initialise Front end*/
-    if(rf_use_front_end)
-    {
-        printf("RF Front End used\r\n");
-        rf_if_enable_pa_ext();
-                /*  not supported in this version  */    
-    }
-  
-  //printf("RF Write Settings: 5\r\n");  
-    /*Initialise Antenna Diversity*/
-    if(rf_use_antenna_diversity) {
-        printf("RF Antenna diversity\r\n");
-        rf_if_write_antenna_diversity_settings();
-    }    
-  
-  printf("RF Write Settings: 7\r\n");
-    arm_exit_critical();
-   printf("RF Write Settings End\r\n");
-}
-
-/*
- * \brief Function writes 16-bit address in RF address filter.
- *
- * \param short_address Given short address
- *
- * \return none
- */
-void rf_set_short_adr(uint8_t * short_address)
-{
-    uint8_t rf_off_flag = 0;
-    arm_enter_critical();
-    /*Wake up RF if sleeping*/
-    if(rf_if_read_trx_state() == 0x00 || rf_if_read_trx_state() == 0x1F)
-    {
-        rf_if_disable_slptr();
-        rf_off_flag = 1;
-        rf_poll_trx_state_change(TRX_OFF);
-    }
-    /*Write address filter registers*/
-    rf_if_write_short_addr_registers(short_address);
-    /*RF back to sleep*/
-    if(rf_off_flag)
-        rf_if_enable_slptr();
-    arm_exit_critical();
-}
-
-/*
- * \brief Function writes PAN Id in RF PAN Id filter.
- *
- * \param pan_id Given PAN Id
- *
- * \return none
- */
-void rf_set_pan_id(uint8_t *pan_id)
-{
-    uint8_t rf_off_flag = 0;
-
-    arm_enter_critical();
-    /*Wake up RF if sleeping*/
-    if(rf_if_read_trx_state() == 0x00 || rf_if_read_trx_state() == 0x1F)
-    {
-        rf_if_disable_slptr();
-        rf_off_flag = 1;
-        rf_poll_trx_state_change(TRX_OFF);
-    }
-    /*Write address filter registers*/
-    rf_if_write_pan_id_registers(pan_id);
-    /*RF back to sleep*/
-    if(rf_off_flag)
-        rf_if_enable_slptr();
-    arm_exit_critical();
-}
-
-/*
- * \brief Function writes 64-bit address in RF address filter.
- *
- * \param address Given 64-bit address
- *
- * \return none
- */
-void rf_set_address(uint8_t *address)
-{
-    uint8_t rf_off_flag = 0;
-
-    arm_enter_critical();
-    /*Wake up RF if sleeping*/
-    if(rf_if_read_trx_state() == 0x00 || rf_if_read_trx_state() == 0x1F)
-    {
-        rf_if_disable_slptr();
-        rf_off_flag = 1;
-        rf_poll_trx_state_change(TRX_OFF);
-    }
-    /*Write address filter registers*/
-    rf_if_write_ieee_addr_registers(address);
-    /*RF back to sleep*/
-    if(rf_off_flag)
-        rf_if_enable_slptr();
-
-    arm_exit_critical();
-}
-
-/*
- * \brief Function sets the RF channel.
- *
- * \param ch New channel
- *
- * \return none
- */
-void rf_channel_set(uint8_t ch)
-{
-    arm_enter_critical();
-    rf_channel = ch;
-    if(ch < 0x1f)
-        rf_if_set_channel_register(ch);
-    arm_exit_critical();
-}
-
-
-/*
- * \brief Function initialises the radio driver and resets the radio.
- *
- * \param none
- *
- * \return none
- */
-void rf_init(void)
-{
-   printf("RF Init Start\r\n");
-    /*Initialise timers*/
-    rf_timer_init();                //TODO
-    rf_channel = RF_DEFAULT_CHANNEL;
-   printf("RF Reset\r\n");  
-    /*Reset RF module*/
-    rf_if_reset_radio();
-   printf("RF Write Settings\r\n"); 
-    /*Write RF settings*/
-    rf_write_settings();
-   printf("RF Init PHY Mode\r\n"); 
-    /*Initialise PHY mode*/
-    rf_init_phy_mode();
-    /*Clear RF flags*/
-    rf_flags_reset();
-    /*Set RF in TRX OFF state*/
-    rf_if_change_trx_state(TRX_OFF);
-    /*Set RF in PLL_ON state*/
-    rf_if_change_trx_state(PLL_ON);
-    /*Start receiver*/
-    rf_receive();
-    /*Read random variable. This will be used when seeding pseudo-random generator*/
-    rf_rnd_rssi = rf_if_read_rnd();
-    /*Start RF calibration timer*/
-    rf_calibration_timer_start(RF_CALIBRATION_INTERVAL);  //ACA!
-        printf("RF Init End\r\n");
-}
-
-/**
- * \brief Function gets called when MAC is setting radio off.
- *
- * \param none
- *
- * \return none
- */
-void rf_off(void)
-{
-    if(rf_flags_check(RFF_ON))
-    {
-        rf_cca_abort();
-        uint16_t while_counter = 0;
-        /*Wait while receiving*/
-        while(rf_if_read_trx_state() == BUSY_RX_AACK || rf_if_read_trx_state() == BUSY_RX)
-        {
-            while_counter++;
-            if(while_counter == 0xffff)
-                break;
-        }
-        /*RF state change: RX_AACK_ON->PLL_ON->TRX_OFF->SLEEP*/
-        if(rf_if_read_trx_state() == RX_AACK_ON)
-        {
-            rf_if_change_trx_state(PLL_ON);
-        }
-        rf_if_change_trx_state(TRX_OFF);
-        rf_if_enable_slptr();
-        rf_flags_clear(~RFF_ON);
-        /*Front end in sleep*/
-        if(rf_use_front_end)
-        {
-            rf_if_disable_pa_ext();
-            rf_front_end_sleep();
-        }
-        /*Disable Antenna Diversity*/
-        if(rf_use_antenna_diversity)
-            rf_if_disable_ant_div();
-    }
-}
-
-/*
- * \brief Function polls the RF state until it has changed to desired state.
- *
- * \param trx_state RF state
- *
- * \return none
- */
-void rf_poll_trx_state_change(rf_trx_states_t trx_state)
-{
-    uint16_t while_counter = 0;
-    arm_enter_critical();
-
-    if(trx_state != RF_TX_START)
-    {
-        if(trx_state == FORCE_PLL_ON)
-            trx_state = PLL_ON;
-        else if(trx_state == FORCE_TRX_OFF)
-            trx_state = TRX_OFF;
-
-        while(rf_if_read_trx_state() != trx_state)
-        {
-            while_counter++;
-            if(while_counter == 0x1ff)
-                break;
-        }
-    }
-    arm_exit_critical();
-}
-
-/*
- * \brief Function starts the CCA process before starting data transmission and copies the data to RF TX FIFO.
- *
- * \param data_ptr Pointer to TX data
- * \param data_length Length of the TX data
- * \param tx_handle Handle to transmission
- * \return 0 Success
- * \return -1 Busy
- */
-int8_t rf_start_cca(uint8_t *data_ptr, uint16_t data_length, uint8_t tx_handle)
-{
-    /*Check if transmitter is busy*/
-    if((rf_if_read_trx_state() == BUSY_RX_AACK) || (rf_if_read_trx_state() == BUSY_RX))
-    {
-        /*Return busy*/
-        return -1;
-    }
-    else
-    {
-        arm_enter_critical();
-        /*Check if transmitted data needs to be acked*/
-        if(*data_ptr & 0x20)
-            need_ack = 1;
-        else
-            need_ack = 0;
-        /*Store the sequence number for ACK handling*/
-        tx_sequence = *(data_ptr + 2);
-        /*Set radio in RX state to read channel*/
-        rf_receive();
-        /*Write TX FIFO*/
-        rf_if_write_frame_buffer(data_ptr, (uint8_t)data_length);
-        rf_flags_set(RFF_CCA);
-        /*Start CCA process*/
-        rf_if_enable_cca_ed_done_interrupt();
-        rf_if_start_cca_process();
-        /*Store TX handle*/
-        mac_tx_handle = tx_handle;
-        arm_exit_critical();
-    }
-
-    /*Return success*/
-    return 0;
-}
-
-/*
- * \brief Function aborts CCA process.
- *
- * \param none
- *
- * \return none
- */
-void rf_cca_abort(void)
-{
-    /*Clear RFF_CCA RF flag*/
-    rf_flags_clear(RFF_CCA);
-}
-
-
-
-/*
- * \brief Function starts the transmission of the frame.
- *
- * \param none
- *
- * \return none
- */
-void rf_start_tx(void)
-{
-    /*Only start transmitting from RX state*/
-    uint8_t trx_state = rf_if_read_trx_state();
-    if((trx_state != RX_AACK_ON) && (trx_state != RX_ON))
-    {
-        arm_net_phy_tx_done(rf_radio_driver_id, mac_tx_handle, PHY_LINK_CCA_FAIL, 1, 1);
-    }
-    else
-    {
-        /*RF state change: ->PLL_ON->RF_TX_START*/
-        rf_if_change_trx_state(FORCE_PLL_ON);
-        rf_flags_clear(RFF_RX);
-        rf_if_enable_tx_end_interrupt();
-        rf_flags_set(RFF_TX);
-        rf_if_change_trx_state(RF_TX_START);
-    }
-}
-
-/*
- * \brief Function sets the RF in RX state.
- *
- * \param none
- *
- * \return none
- */
-void rf_receive(void)
-{
-    uint16_t while_counter = 0;
-    if(rf_flags_check(RFF_ON) == 0)
-    {
-        rf_on();
-    }
-    /*If not yet in RX state set it*/
-    if(rf_flags_check(RFF_RX) == 0)
-    {
-        arm_enter_critical();
-        /*Wait while receiving data*/
-        while((rf_if_read_trx_state() == BUSY_RX) || (rf_if_read_trx_state() == BUSY_RX_AACK))
-        {
-            while_counter++;
-            if(while_counter == 0xffff)
-            {
-                break;
-            }
-        }
-        /*Wake up from sleep state*/
-        if(rf_if_read_trx_state() == 0x00 || rf_if_read_trx_state() == 0x1f)
-        {
-            rf_if_disable_slptr();
-            rf_poll_trx_state_change(TRX_OFF);
-        }
-
-        rf_if_change_trx_state(PLL_ON);
-        /*ACK is always received in RX_ON state to bypass address filters*/
-        if(rf_rx_mode)
-        {
-            rf_rx_mode = 0;
-            rf_if_change_trx_state(RX_ON);
-        }
-        else
-        {
-            rf_if_change_trx_state(RX_AACK_ON);
-            /*If calibration timer was unable to calibrate the RF, run calibration now*/
-            if(!rf_tuned)
-            {
-                /*Start calibration. This can be done in states TRX_OFF, PLL_ON or in any receive state*/
-                rf_if_calibration();
-                /*RF is tuned now*/
-                rf_tuned = 1;
-            }
-        }
-        rf_channel_set(rf_channel);
-        rf_flags_set(RFF_RX);
-        rf_if_enable_rx_end_interrupt();
-        /*Enable LNA if Front end used*/
-        if(rf_use_front_end)
-            rf_front_end_rx_lna();
-        arm_exit_critical();
-    }
-    /*Stop the running CCA process*/
-    if(rf_flags_check(RFF_CCA))
-        rf_cca_abort();
-}
-
-/*
- * \brief Function calibrates the radio.
- *
- * \param none
- *
- * \return none
- */
-void rf_calibration_cb(void)
-{
-    /*clear tuned flag to start tuning in rf_receive*/
-    rf_tuned = 0;
-    /*If RF is in default receive state, start calibration*/
-    if(rf_if_read_trx_state() == RX_AACK_ON)
-    {
-        arm_enter_critical();
-        /*Set RF in PLL_ON state*/
-        rf_if_change_trx_state(PLL_ON);
-        /*Set RF in TRX_OFF state to start PLL tuning*/
-        rf_if_change_trx_state(TRX_OFF);
-        /*Set RF in RX_ON state to calibrate*/
-        rf_if_change_trx_state(RX_ON);
-        /*Calibrate FTN*/
-        rf_if_calibration();
-        /*RF is tuned now*/
-        rf_tuned = 1;
-        /*Back to default receive state*/
-        rf_flags_clear(RFF_RX);
-        rf_receive();
-        arm_exit_critical();
-    }
-}
-
-/*
- * \brief Function sets RF_ON flag when radio is powered.
- *
- * \param none
- *
- * \return none
- */
-void rf_on(void)
-{
-    /*Set RFF_ON flag*/
-    if(rf_flags_check(RFF_ON) == 0)
-    {
-        rf_flags_set(RFF_ON);
-        /*Wake up Front end*/
-        if(rf_use_front_end)
-        {
-            /*Set PA_EXT_EN to enable controlling of external front end*/
-            rf_if_enable_pa_ext();
-            rf_front_end_rx_lna();
-        }
-        /*Enable Antenna diversity*/
-        if(rf_use_antenna_diversity)
-            /*Set ANT_EXT_SW_EN to enable controlling of antenna diversity*/
-            rf_if_enable_ant_div();
-    }
-}
-
-/*
- * \brief Function handles the received ACK frame.
- *
- * \param seq_number Sequence number of received ACK
- * \param data_pending Pending bit state in received ACK
- *
- * \return none
- */
-void rf_handle_ack(uint8_t seq_number, uint8_t data_pending)
-{
-    phy_link_tx_status_e phy_status;
-    arm_enter_critical();
-    /*Received ACK sequence must be equal with transmitted packet sequence*/
-    if(tx_sequence == seq_number)
-    {
-        rf_ack_wait_timer_stop();
-        /*When data pending bit in ACK frame is set, inform NET library*/
-        if(data_pending)
-            phy_status =    PHY_LINK_TX_DONE_PENDING;
-        else
-            phy_status = PHY_LINK_TX_DONE;
-        /*Call PHY TX Done API*/
-        arm_net_phy_tx_done(rf_radio_driver_id, mac_tx_handle,phy_status, 1, 1);
-    }
-    arm_exit_critical();
-}
-
-/*
- * \brief Function is a call back for RX end interrupt.
- *
- * \param none
- *
- * \return none
- */
-void rf_handle_rx_end(void)
-{
-    uint8_t rf_lqi;
-
-    /*Frame received interrupt*/
-    if(rf_flags_check(RFF_RX))
-    {
-        /*Check CRC_valid bit*/
-        if(rf_if_check_crc())
-        {
-            uint8_t *rf_rx_ptr;
-            uint8_t receiving_ack = 0;
-            /*Read length*/
-            uint8_t len = rf_if_read_received_frame_length();
-            /*Not ACK frame*/
-            if(len > 5)
-            {
-                rf_rx_ptr = rf_buffer;
-            }
-            /*ACK received*/
-            else
-            {
-                /*Read ACK in static ACK buffer*/
-                receiving_ack = 1;
-                rf_rx_ptr = ack_rx_buf;
-            }
-            /*Check the length is valid*/
-            if(len > 1 && len < RF_BUFFER_SIZE)
-            {
-                /*Read received packet*/
-                rf_if_read_packet(rf_rx_ptr, len);
-                /*Get LQI*/
-                rf_lqi = rf_if_read_lqi();
-                /*Handle received ACK*/
-                if(receiving_ack && ((ack_rx_buf[0] & 0x07) == 0x02))
-                {
-                    uint8_t pending = 0;
-                    /*Check if data is pending*/
-                    if ((ack_rx_buf[0] & 0x10))
-                    {
-                        pending=1;
-                    }
-                    /*Send sequence number in ACK handler*/
-                    rf_handle_ack(ack_rx_buf[2], pending);
-                }
-                /*Handle received data*/
-                else if(rf_if_read_trx_state() != RX_ON && rf_if_read_trx_state() != BUSY_RX)
-                {
-                    arm_net_phy_rx(rf_buffer,len - 2, rf_lqi, rf_radio_driver_id);
-                }
-            }
-        }
-    }
-    /*Start receiver*/
-    rf_flags_clear(RFF_RX);
-    rf_receive();
-}
-
-/*
- * \brief Function is called when MAC is shutting down the radio.
- *
- * \param none
- *
- * \return none
- */
-void rf_shutdown(void)
-{
-    /*Call RF OFF*/
-    rf_off();
-    /*Clear RF flags*/
-    rf_flags_reset();
-}
-
-/*
- * \brief Function is a call back for TX end interrupt.
- *
- * \param none
- *
- * \return none
- */
-void rf_handle_tx_end(void)
-{
-    phy_link_tx_status_e phy_status = PHY_LINK_TX_SUCCESS;
-
-    rf_rx_mode = 0;
-    /*If ACK is needed for this transmission*/
-    if(need_ack && rf_flags_check(RFF_TX))
-    {
-        rf_ack_wait_timer_start(rf_ack_wait_duration);
-        rf_rx_mode = 1;
-    }
-    rf_flags_clear(RFF_RX);
-    /*Start receiver*/
-    rf_receive();
-
-    /*Call PHY TX Done API*/
-    arm_net_phy_tx_done(rf_radio_driver_id, mac_tx_handle, phy_status, 1, 1);
-}
-
-/*
- * \brief Function is a call back for CCA ED done interrupt.
- *
- * \param none
- *
- * \return none
- */
-void rf_handle_cca_ed_done(void)
-{
-    rf_flags_clear(RFF_CCA);
-    /*Check the result of CCA process*/
-    if(rf_if_check_cca())
-    {
-        rf_start_tx();
-    }
-    else
-    {
-        /*Send CCA fail notification*/
-        arm_net_phy_tx_done(rf_radio_driver_id, mac_tx_handle, PHY_LINK_CCA_FAIL, 1, 1);
-    }
-}
-
-/*
- * \brief Function sets the TX power variable.
- *
- * \param power TX power setting
- *
- * \return 0 Success
- * \return -1 Fail
- */
-int8_t rf_tx_power_set(uint8_t power)
-{
-    int8_t ret_val = -1;
-    if(power < 16)
-    {
-        radio_tx_power = power;
-        ret_val = 0;
-    }
-    return ret_val;
-}
-
-/*
- * \brief Function returns the TX power variable.
- *
- * \param none
- *
- * \return radio_tx_power TX power variable
- */
-uint8_t rf_tx_power_get(void)
-{
-  return radio_tx_power;
-}
-
-/*
- * \brief Function sets the RF RPC variable.
- *
- * \param rpc_value RPC setting
- *
- * \return 0 Success
- */
-int8_t rf_rpc_set(uint8_t rpc_value)
-{
-    int8_t ret_val = -1;
-    radio_rpc_value = rpc_value;
-    ret_val = 0;
-    return ret_val;
-}
-
-/*
- * \brief Function enables the usage of Front end.
- *
- * \param none
- *
- * \return 0 Success
- */
-int8_t rf_enable_pa(void)
-{
-    int8_t ret_val = 0;
-    rf_use_front_end = 1;
-    return ret_val;
-}
-
-/*
- * \brief Function enables the usage of Antenna diversity.
- *
- * \param none
- *
- * \return 0 Success
- */
-int8_t rf_enable_antenna_diversity(void)
-{
-    int8_t ret_val = 0;
-    rf_use_antenna_diversity = 1;
-    return ret_val;
-}
-
-/*
- * \brief Function defines the CSD pin of the Front end.
- *
- * \param port CSD port
- * \param port CSD pin
- *
- * \return 0 Success
- */
-int8_t rf_set_csd_pin(uint8_t port, uint8_t pin)
-{
-    int8_t ret_val = -1;
-
-    rf_csd_port = port;
-    rf_csd_pin = pin;
-    ret_val = 0;
-
-    return ret_val;
-}
-
-/*
- * \brief Function defines the CPS pin of the Front end.
- *
- * \param port CPS port
- * \param port CPS pin
- *
- * \return 0 Success
- */
-int8_t rf_set_cps_pin(uint8_t port, uint8_t pin)
-{
-    int8_t ret_val = -1;
-
-    rf_cps_port = port;
-    rf_cps_pin = pin;
-    ret_val = 0;
-
-    return ret_val;
-}
-
-/*
- * \brief Function gives the control of RF states to MAC.
- *
- * \param new_state RF state
- * \param rf_channel RF channel
- *
- * \return 0 Success
- */
-static int8_t rf_interface_state_control(phy_interface_state_e new_state, uint8_t rf_channel)
-{
-    int8_t ret_val = 0;
-    switch (new_state)
-    {
-        /*Reset PHY driver and set to idle*/
-        case PHY_INTERFACE_RESET:
-            break;
-        /*Disable PHY Interface driver*/
-        case PHY_INTERFACE_DOWN:
-            rf_shutdown();
-            break;
-        /*Enable PHY Interface driver*/
-        case PHY_INTERFACE_UP:
-            rf_channel_set(rf_channel);
-            rf_receive();
-            break;
-        /*Enable wireless interface ED scan mode*/
-        case PHY_INTERFACE_RX_ENERGY_STATE:
-            break;
-    }
-    return ret_val;
-}
-
-/*
- * \brief Function controls the ACK pending, channel setting and energy detection.
- *
- * \param extension_type Type of control
- * \param data_ptr Data from NET library
- *
- * \return 0 Success
- */
-static int8_t rf_extension(phy_extension_type_e extension_type, uint8_t *data_ptr)
-{
-    switch (extension_type)
-    {
-        /*Control MAC pending bit for Indirect data transmission*/
-        case PHY_EXTENSION_CTRL_PENDING_BIT:
-            if(*data_ptr)
-            {
-                rf_if_ack_pending_ctrl(1);
-            }
-            else
-            {
-                rf_if_ack_pending_ctrl(0);
-            }
-            break;
-        /*Return frame pending status*/
-        case PHY_EXTENSION_READ_LAST_ACK_PENDING_STATUS:
-            *data_ptr = rf_if_last_acked_pending();
-            break;
-        /*Set channel*/
-        case PHY_EXTENSION_SET_CHANNEL:
-            break;
-        /*Read energy on the channel*/
-        case PHY_EXTENSION_READ_CHANNEL_ENERGY:
-            break;
-        /*Read status of the link*/
-        case PHY_EXTENSION_READ_LINK_STATUS:
-            break;
-    }
-    return 0;
-}
-
-/*
- * \brief Function sets the addresses to RF address filters.
- *
- * \param address_type Type of address
- * \param address_ptr Pointer to given address
- *
- * \return 0 Success
- */
-static int8_t rf_address_write(phy_address_type_e address_type, uint8_t *address_ptr)
-{
-    int8_t ret_val = 0;
-    switch (address_type)
-    {
-        /*Set 48-bit address*/
-        case PHY_MAC_48BIT:
-            break;
-            /*Set 64-bit address*/
-        case PHY_MAC_64BIT:
-            rf_set_address(address_ptr);
-            break;
-        /*Set 16-bit address*/
-        case PHY_MAC_16BIT:
-            rf_set_short_adr(address_ptr);
-            break;
-        /*Set PAN Id*/
-        case PHY_MAC_PANID:
-            rf_set_pan_id(address_ptr);
-            break;
-    }
-    return ret_val;
-}
-
-/*
- * \brief Function initialises the ACK wait time and returns the used PHY mode.
- *
- * \param none
- *
- * \return tmp Used PHY mode
- */
-uint8_t rf_init_phy_mode(void)
-{
-    uint8_t tmp;
-    /*Read used PHY Mode*/
-    tmp = rf_if_read_register(TRX_CTRL_2);
-    /*Set ACK wait time for used data rate*/
-    if((tmp & 0x1f) == 0x00)
-    {
-        rf_ack_wait_duration = 938;
-        tmp = BPSK_20;
-    }
-    else if((tmp & 0x1f) == 0x04)
-    {
-        rf_ack_wait_duration = 469;
-        tmp = BPSK_40;
-    }
-    else if((tmp & 0x1f) == 0x14)
-    {
-        rf_ack_wait_duration = 469;
-        tmp = BPSK_40_ALT;
-    }
-    else if((tmp & 0x1f) == 0x08)
-    {
-        rf_ack_wait_duration = 100;
-        tmp = OQPSK_SIN_RC_100;
-    }
-    else if((tmp & 0x1f) == 0x09)
-    {
-        rf_ack_wait_duration = 50;
-        tmp = OQPSK_SIN_RC_200;
-    }
-    else if((tmp & 0x1f) == 0x18)
-    {
-        rf_ack_wait_duration = 100;
-        tmp = OQPSK_RC_100;
-    }
-    else if((tmp & 0x1f) == 0x19)
-    {
-        rf_ack_wait_duration = 50;
-        tmp = OQPSK_RC_200;
-    }
-    else if((tmp & 0x1f) == 0x0c)
-    {
-        rf_ack_wait_duration = 50;
-        tmp = OQPSK_SIN_250;
-    }
-    else if((tmp & 0x1f) == 0x0d)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_SIN_500;
-    }
-    else if((tmp & 0x1f) == 0x0f)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_SIN_500_ALT;
-    }
-    else if((tmp & 0x1f) == 0x1c)
-    {
-        rf_ack_wait_duration = 50;
-        tmp = OQPSK_RC_250;
-    }
-    else if((tmp & 0x1f) == 0x1d)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_RC_500;
-    }
-    else if((tmp & 0x1f) == 0x1f)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_RC_500_ALT;
-    }
-    else if((tmp & 0x3f) == 0x2A)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_SIN_RC_400_SCR_ON;
-    }
-    else if((tmp & 0x3f) == 0x0A)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_SIN_RC_400_SCR_OFF;
-    }
-    else if((tmp & 0x3f) == 0x3A)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_RC_400_SCR_ON;
-    }
-    else if((tmp & 0x3f) == 0x1A)
-    {
-        rf_ack_wait_duration = 25;
-        tmp = OQPSK_RC_400_SCR_OFF;
-    }
-    else if((tmp & 0x3f) == 0x2E)
-    {
-        rf_ack_wait_duration = 13;
-        tmp = OQPSK_SIN_1000_SCR_ON;
-    }
-    else if((tmp & 0x3f) == 0x0E)
-    {
-        rf_ack_wait_duration = 13;
-        tmp = OQPSK_SIN_1000_SCR_OFF;
-    }
-    else if((tmp & 0x3f) == 0x3E)
-    {
-        rf_ack_wait_duration = 13;
-        tmp = OQPSK_RC_1000_SCR_ON;
-    }
-    else if((tmp & 0x3f) == 0x1E)
-    {
-        rf_ack_wait_duration = 13;
-        tmp = OQPSK_RC_1000_SCR_OFF;
-    }
-    return tmp;
-}
-