596 lines
18 KiB
C
596 lines
18 KiB
C
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/**************************************************************************************************
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Filename: mac_autopend.c
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Revised: $Date: 2009-08-28 09:29:33 -0700 (Fri, 28 Aug 2009) $
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Revision: $Revision: 20674 $
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Description: This file implements the TIMAC Autopend feature.
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Copyright 2006-2009 Texas Instruments Incorporated. All rights reserved.
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IMPORTANT: Your use of this Software is limited to those specific rights
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granted under the terms of a software license agreement between the user
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who downloaded the software, his/her employer (which must be your employer)
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and Texas Instruments Incorporated (the "License"). You may not use this
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Software unless you agree to abide by the terms of the License. The License
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limits your use, and you acknowledge, that the Software may not be modified,
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copied or distributed unless embedded on a Texas Instruments microcontroller
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or used solely and exclusively in conjunction with a Texas Instruments radio
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frequency transceiver, which is integrated into your product. Other than for
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the foregoing purpose, you may not use, reproduce, copy, prepare derivative
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works of, modify, distribute, perform, display or sell this Software and/or
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its documentation for any purpose.
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YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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PROVIDED <EFBFBD>AS IS<EFBFBD> WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
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NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
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TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT,
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NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER
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LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
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INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE
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OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT
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OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
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(INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
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Should you have any questions regarding your right to use this Software,
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contact Texas Instruments Incorporated at www.TI.com.
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**************************************************************************************************/
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/* low-level */
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#include "mac_api.h"
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#include "mac_radio_defs.h"
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/* osal */
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#include "OSAL.h"
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#include "saddr.h"
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#include "ZComDef.h"
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#include "mac_autopend.h"
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/* ------------------------------------------------------------------------------------------------
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* Defines
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* ------------------------------------------------------------------------------------------------
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*/
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#define MAC_SRCMATCH_INVALID_INDEX 0xFF
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#define MAC_SRCMATCH_SHORT_ENTRY_SIZE 4
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#define MAC_SRCMATCH_EXT_ENTRY_SIZE Z_EXTADDR_LEN
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#define MAC_SRCMATCH_SHORT_MAX_NUM_ENTRIES 24
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#define MAC_SRCMATCH_EXT_MAX_NUM_ENTRIES 12
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#define MAC_SRCMATCH_ENABLE_BITMAP_LEN 3
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/* ------------------------------------------------------------------------------------------------
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* Global Variables
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* ------------------------------------------------------------------------------------------------
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*/
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bool macSrcMatchIsEnabled = FALSE;
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/* ------------------------------------------------------------------------------------------------
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* Local Variables
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* ------------------------------------------------------------------------------------------------
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*/
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/*
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The following local Varables are only set in MAC_SrcMatchEnable()
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They are read only to the rest of the module.
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*/
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uint8 macSrcMatchMaxNumEntries = 0;
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uint8 macSrcMatchAddrMode = SADDR_MODE_SHORT;
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bool macSrcMatchIsAckAllPending = FALSE;
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/* ------------------------------------------------------------------------------------------------
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* Local Functions
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* ------------------------------------------------------------------------------------------------
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*/
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static uint8 macSrcMatchFindEmptyEntry( void );
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static uint8 macSrcMatchCheckSrcAddr ( sAddr_t *addr, uint16 panID );
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static void macSrcMatchSetPendEnBit( uint8 index );
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static void macSrcMatchSetEnableBit( uint8 index, bool option );
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static bool macSrcMatchCheckEnableBit( uint8 index );
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static uint24 macSrcMatchGetEnableBit( void );
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static uint24 macSrcMatchGetPendEnBit( void );
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/*********************************************************************
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* @fn MAC_SrcMatchEnable
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*
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* @brief Enabled AUTOPEND and source address matching. If number of source
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* address table entries asked for is more than the hardware
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* supports. It will allocate maximum number of entries and return
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* MAC_INVALID_PARAMETER. This function shall be not be called from
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* ISR. It is not thread safe.
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*
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* @param addressType - address type that the application uses
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* SADDR_MODE_SHORT or SADDR_MODE_EXT
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* @param num - number of source address table entries to be used
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*
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* @return MAC_SUCCESS or MAC_INVALID_PARAMETER
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*/
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uint8 MAC_SrcMatchEnable ( uint8 addrType, uint8 num )
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{
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uint8 rtn;
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uint8 maxNum;
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/* Verify the address type */
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if( addrType != SADDR_MODE_SHORT && addrType != SADDR_MODE_EXT )
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{
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return MAC_INVALID_PARAMETER;
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}
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maxNum = ( addrType == SADDR_MODE_SHORT ) ?
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MAC_SRCMATCH_SHORT_MAX_NUM_ENTRIES : MAC_SRCMATCH_EXT_MAX_NUM_ENTRIES;
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if( num > maxNum )
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{
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rtn = MAC_INVALID_PARAMETER;
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num = maxNum;
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}
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else
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{
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rtn = MAC_SUCCESS;
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}
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/* Turn on Frame Filter (TIMAC enables frame filter by default), TBD */
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MAC_RADIO_TURN_ON_RX_FRAME_FILTERING();
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/* Turn on Auto ACK (TIMAC turn on Auto ACK by default), TBD */
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MAC_RADIO_TURN_ON_AUTO_ACK();
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/* Turn on Autopend: set SRCMATCH.AUTOPEND and SRCMATCH.SRC_MATCH_EN */
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MAC_RADIO_TURN_ON_SRC_MATCH();
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/* Set SRCMATCH.AUTOPEND */
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MAC_RADIO_TURN_ON_AUTOPEND();
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/* Configure all the globals */
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macSrcMatchIsEnabled = TRUE;
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macSrcMatchMaxNumEntries = num;
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macSrcMatchAddrMode = addrType;
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return rtn;
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}
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/*********************************************************************
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* @fn MAC_SrcMatchAddEntry
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*
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* @brief Add a short or extended address to source address table. This
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* function shall be not be called from ISR. It is not thread safe.
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*
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* @param addr - a pointer to sAddr_t which contains addrMode
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* and a union of a short 16-bit MAC address or an extended
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* 64-bit MAC address to be added to the source address table.
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* @param panID - the device PAN ID. It is only used when the addr is
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* using short address
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* @return MAC_SUCCESS or MAC_NO_RESOURCES (source address table full)
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* or MAC_DUPLICATED_ENTRY (the entry added is duplicated),
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* or MAC_INVALID_PARAMETER if the input parameters are invalid.
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*/
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uint8 MAC_SrcMatchAddEntry ( sAddr_t *addr, uint16 panID )
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{
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uint8 index;
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uint8 entry[MAC_SRCMATCH_SHORT_ENTRY_SIZE];
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/* Check if the input parameters are valid */
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if ( addr == NULL || addr->addrMode != macSrcMatchAddrMode )
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{
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return MAC_INVALID_PARAMETER;
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}
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/* Check if the entry already exists. Do not add duplicated entry */
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if ( macSrcMatchCheckSrcAddr( addr, panID ) != MAC_SRCMATCH_INVALID_INDEX )
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{
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return MAC_DUPLICATED_ENTRY;
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}
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/* If not duplicated, write to the radio RAM and enable the control bit */
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/* Find the first empty entry */
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index = macSrcMatchFindEmptyEntry();
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if ( index == macSrcMatchMaxNumEntries )
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{
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return MAC_NO_RESOURCES; /* Table is full */
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}
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if ( macSrcMatchAddrMode == SADDR_MODE_SHORT )
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{
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/* Write the PanID and short address */
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entry[0] = LO_UINT16( panID ); /* Little Endian for the radio RAM */
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entry[1] = HI_UINT16( panID );
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entry[2] = LO_UINT16( addr->addr.shortAddr );
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entry[3] = HI_UINT16( addr->addr.shortAddr );
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MAC_RADIO_SRC_MATCH_TABLE_WRITE( ( index * MAC_SRCMATCH_SHORT_ENTRY_SIZE ),
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entry, MAC_SRCMATCH_SHORT_ENTRY_SIZE );
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}
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else
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{
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/* Write the extended address */
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MAC_RADIO_SRC_MATCH_TABLE_WRITE( ( index * MAC_SRCMATCH_EXT_ENTRY_SIZE ),
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addr->addr.extAddr, MAC_SRCMATCH_EXT_ENTRY_SIZE );
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}
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/* Set the Autopend enable bits */
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macSrcMatchSetPendEnBit( index );
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/* Set the Src Match enable bits */
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macSrcMatchSetEnableBit( index, TRUE );
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return MAC_SUCCESS;
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}
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/*********************************************************************
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* @fn MAC_SrcMatchDeleteEntry
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*
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* @brief Delete a short or extended address from source address table.
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* This function shall be not be called from ISR. It is not thread safe.
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*
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* @param addr - a pointer to sAddr_t which contains addrMode
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* and a union of a short 16-bit MAC address or an extended
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* 64-bit MAC address to be deleted from the source address table.
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* @param panID - the device PAN ID. It is only used when the addr is
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* using short address
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*
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* @return MAC_SUCCESS or MAC_INVALID_PARAMETER (address to be deleted
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* cannot be found in the source address table).
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*/
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uint8 MAC_SrcMatchDeleteEntry ( sAddr_t *addr, uint16 panID )
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{
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uint8 index;
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if ( addr == NULL || addr->addrMode != macSrcMatchAddrMode )
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{
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return MAC_INVALID_PARAMETER;
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}
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/* Look up the source address table and find the entry. */
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index = macSrcMatchCheckSrcAddr( addr, panID );
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if( index == MAC_SRCMATCH_INVALID_INDEX )
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{
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return MAC_INVALID_PARAMETER;
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}
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/* Clear Src Match enable bits */
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macSrcMatchSetEnableBit( index, FALSE );
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return MAC_SUCCESS;
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}
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/*********************************************************************
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* @fn MAC_SrcMatchAckAllPending
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*
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* @brief Enabled/disable acknowledging all packets with pending bit set
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* The application normally enables it when adding new entries to
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* the source address table fails due to the table is full, or
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* disables it when more entries are deleted and the table has
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* empty slots.
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*
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* @param option - TRUE (acknowledging all packets with pending field set)
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* FALSE (acknowledging all packets with pending field cleared)
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*
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* @return none
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*/
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void MAC_SrcMatchAckAllPending ( uint8 option )
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{
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if( option == TRUE )
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{
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macSrcMatchIsAckAllPending = TRUE;
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/* Set the PENDING_OR register */
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MAC_RADIO_TURN_ON_PENDING_OR();
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}
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else
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{
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macSrcMatchIsAckAllPending = FALSE;
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/* Clear the PENDING_OR register */
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MAC_RADIO_TURN_OFF_PENDING_OR();
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}
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}
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/*********************************************************************
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* @fn MAC_SrcMatchCheckAllPending
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*
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* @brief Check if acknowledging all packets with pending bit set
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* is enabled.
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*
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* @param none
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*
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* @return MAC_AUTOACK_PENDING_ALL_ON or MAC_AUTOACK_PENDING_ALL_OFF
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*/
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uint8 MAC_SrcMatchCheckAllPending ( void )
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{
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if( macSrcMatchIsAckAllPending == TRUE )
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{
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return MAC_AUTOACK_PENDING_ALL_ON;
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}
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return MAC_AUTOACK_PENDING_ALL_OFF;
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}
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/*********************************************************************
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* @fn MAC_SrcMatchCheckResult
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*
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* @brief Check the result of source matching
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*
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* @param index - index of the entry in the source address table
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*
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* @return TRUE or FALSE
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*/
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MAC_INTERNAL_API bool MAC_SrcMatchCheckResult( void )
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{
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uint8 resIndex;
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if ( macSrcMatchIsAckAllPending )
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{
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return (TRUE);
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}
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MAC_RADIO_SRC_MATCH_RESINDEX( resIndex );
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return ( resIndex & AUTOPEND_RES );
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}
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/*********************************************************************
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* @fn macSrcMatchFindEmptyEntry
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*
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* @brief return index of the first empty entry found
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*
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* @param none
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*
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* @return uint8 - return index of the first empty entry found
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*/
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static uint8 macSrcMatchFindEmptyEntry( void )
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{
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uint8 index;
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uint24 enable;
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enable = MAC_RADIO_SRC_MATCH_GET_EN();
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if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
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{
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for( index = 0; index < macSrcMatchMaxNumEntries; index++ )
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{
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if( ( enable & ( (uint24)0x01 << index ) ) == 0 )
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{
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return index;
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}
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}
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}
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else
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{
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for( index = 0; index < macSrcMatchMaxNumEntries; index++ )
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|
{
|
|||
|
|
if( ( enable & ( (uint24)0x01 << ( index * 2 ) ) ) == 0 )
|
|||
|
|
{
|
|||
|
|
return index;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
The value of index shall be macSrcMatchMaxNumEntries when it executes
|
|||
|
|
here. The table is full.
|
|||
|
|
*/
|
|||
|
|
return index;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*********************************************************************
|
|||
|
|
* @fn macSrcMatchCheckSrcAddr
|
|||
|
|
*
|
|||
|
|
* @brief Check if a short or extended address is in the source address table.
|
|||
|
|
* This function shall not be called from ISR. It is not thread safe.
|
|||
|
|
*
|
|||
|
|
* @param addr - a pointer to sAddr_t which contains addrMode
|
|||
|
|
* and a union of a short 16-bit MAC address or an extended
|
|||
|
|
* 64-bit MAC address to be checked in the source address table.
|
|||
|
|
* @param panID - the device PAN ID. It is only used when the addr is
|
|||
|
|
* using short address
|
|||
|
|
|
|||
|
|
* @return uint8 - index of the entry in the table. Return
|
|||
|
|
* MAC_SRCMATCH_INVALID_INDEX (0xFF) if address not found.
|
|||
|
|
*/
|
|||
|
|
static uint8 macSrcMatchCheckSrcAddr ( sAddr_t *addr, uint16 panID )
|
|||
|
|
{
|
|||
|
|
uint8 index;
|
|||
|
|
uint8 *pAddr;
|
|||
|
|
uint8 entrySize;
|
|||
|
|
uint8 entry[MAC_SRCMATCH_SHORT_ENTRY_SIZE];
|
|||
|
|
uint8 ramEntry[MAC_SRCMATCH_EXT_ENTRY_SIZE];
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
Currently, shadow memory is not supported to optimize SPI traffic.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
|
|||
|
|
{
|
|||
|
|
entry[0] = LO_UINT16( panID ); /* Little Endian for the radio RAM */
|
|||
|
|
entry[1] = HI_UINT16( panID );
|
|||
|
|
entry[2] = LO_UINT16( addr->addr.shortAddr );
|
|||
|
|
entry[3] = HI_UINT16( addr->addr.shortAddr );
|
|||
|
|
pAddr = entry;
|
|||
|
|
entrySize = MAC_SRCMATCH_SHORT_ENTRY_SIZE;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
pAddr = addr->addr.extAddr;
|
|||
|
|
entrySize = MAC_SRCMATCH_EXT_ENTRY_SIZE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for( index = 0; index < macSrcMatchMaxNumEntries; index++ )
|
|||
|
|
{
|
|||
|
|
/* Check if the entry is enabled */
|
|||
|
|
if( macSrcMatchCheckEnableBit( index ) == FALSE )
|
|||
|
|
{
|
|||
|
|
continue;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Compare the short address and pan ID */
|
|||
|
|
MAC_RADIO_SRC_MATCH_TABLE_READ( ( index * entrySize ), ramEntry, entrySize );
|
|||
|
|
|
|||
|
|
if( osal_memcmp( pAddr, ramEntry, entrySize ) == TRUE )
|
|||
|
|
{
|
|||
|
|
/* Match found */
|
|||
|
|
return index;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return MAC_SRCMATCH_INVALID_INDEX;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*********************************************************************
|
|||
|
|
* @fn macSrcMatchSetPendEnBit
|
|||
|
|
*
|
|||
|
|
* @brief Set the enable bit in the source address table
|
|||
|
|
*
|
|||
|
|
* @param index - index of the entry in the source address table
|
|||
|
|
*
|
|||
|
|
* @return none
|
|||
|
|
*/
|
|||
|
|
static void macSrcMatchSetPendEnBit( uint8 index )
|
|||
|
|
{
|
|||
|
|
uint24 enable;
|
|||
|
|
uint8 buf[MAC_SRCMATCH_ENABLE_BITMAP_LEN];
|
|||
|
|
|
|||
|
|
enable = MAC_RADIO_SRC_MATCH_GET_PENDEN();
|
|||
|
|
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
|
|||
|
|
{
|
|||
|
|
enable |= ( (uint24)0x01 << index );
|
|||
|
|
osal_buffer_uint24( buf, enable );
|
|||
|
|
MAC_RADIO_SRC_MATCH_SET_SHORTPENDEN( buf );
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
enable |= ( (uint24)0x01 << ( index * 2 ) );
|
|||
|
|
osal_buffer_uint24( buf, enable );
|
|||
|
|
MAC_RADIO_SRC_MATCH_SET_EXTPENDEN( buf );
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*********************************************************************
|
|||
|
|
* @fn macSrcMatchSetEnableBit
|
|||
|
|
*
|
|||
|
|
* @brief Set or clear the enable bit in the SRCMATCH EN register
|
|||
|
|
*
|
|||
|
|
* @param index - index of the entry in the source address table
|
|||
|
|
* @param option - true (set the enable bit), or false (clear the enable bit)
|
|||
|
|
*
|
|||
|
|
* @return none
|
|||
|
|
*/
|
|||
|
|
static void macSrcMatchSetEnableBit( uint8 index, bool option )
|
|||
|
|
{
|
|||
|
|
uint24 enable;
|
|||
|
|
|
|||
|
|
enable = MAC_RADIO_SRC_MATCH_GET_EN();
|
|||
|
|
|
|||
|
|
if( option == TRUE )
|
|||
|
|
{
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
|
|||
|
|
{
|
|||
|
|
enable |= ( (uint24)0x01 << index );
|
|||
|
|
MAC_RADIO_SRC_MATCH_SET_SHORTEN( enable );
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
enable |= ( (uint24)0x01 << ( index * 2 ) );
|
|||
|
|
MAC_RADIO_SRC_MATCH_SET_EXTEN( enable );
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
|
|||
|
|
{
|
|||
|
|
enable &= ~( (uint24)0x01 << index );
|
|||
|
|
MAC_RADIO_SRC_MATCH_SET_SHORTEN( enable );
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
enable &= ~( (uint24)0x01 << ( index * 2 ) );
|
|||
|
|
MAC_RADIO_SRC_MATCH_SET_EXTEN( enable );
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*********************************************************************
|
|||
|
|
* @fn macSrcMatchCheckEnableBit
|
|||
|
|
*
|
|||
|
|
* @brief Check the enable bit in the source address table
|
|||
|
|
*
|
|||
|
|
* @param index - index of the entry in the source address table
|
|||
|
|
*
|
|||
|
|
* @return TRUE or FALSE
|
|||
|
|
*/
|
|||
|
|
static bool macSrcMatchCheckEnableBit( uint8 index )
|
|||
|
|
{
|
|||
|
|
uint24 enable;
|
|||
|
|
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_EXT )
|
|||
|
|
{
|
|||
|
|
index *= 2;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
enable = MAC_RADIO_SRC_MATCH_GET_EN();
|
|||
|
|
|
|||
|
|
if( enable & ( (uint24)0x01 << index ) )
|
|||
|
|
{
|
|||
|
|
return TRUE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return FALSE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*********************************************************************
|
|||
|
|
* @fn macSrcMatchGetEnableBit
|
|||
|
|
*
|
|||
|
|
* @brief Return the SRCMATCH enable bitmap
|
|||
|
|
*
|
|||
|
|
* @param none
|
|||
|
|
*
|
|||
|
|
* @return uint24 - 24 bits bitmap
|
|||
|
|
*/
|
|||
|
|
static uint24 macSrcMatchGetEnableBit( void )
|
|||
|
|
{
|
|||
|
|
uint8 buf[MAC_SRCMATCH_ENABLE_BITMAP_LEN];
|
|||
|
|
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
|
|||
|
|
{
|
|||
|
|
MAC_RADIO_GET_SRC_SHORTEN( buf );
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
MAC_RADIO_GET_SRC_EXTEN( buf );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return osal_build_uint32( buf, MAC_SRCMATCH_ENABLE_BITMAP_LEN );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*********************************************************************
|
|||
|
|
* @fn macSrcMatchGetPendEnBit
|
|||
|
|
*
|
|||
|
|
* @brief Return the SRCMATCH Pend enable bitmap
|
|||
|
|
*
|
|||
|
|
* @param none
|
|||
|
|
*
|
|||
|
|
* @return uint24 - 24 bits bitmap
|
|||
|
|
*/
|
|||
|
|
static uint24 macSrcMatchGetPendEnBit( void )
|
|||
|
|
{
|
|||
|
|
uint8 buf[MAC_SRCMATCH_ENABLE_BITMAP_LEN];
|
|||
|
|
|
|||
|
|
if( macSrcMatchAddrMode == SADDR_MODE_SHORT )
|
|||
|
|
{
|
|||
|
|
MAC_RADIO_GET_SRC_SHORTPENDEN( buf );
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
MAC_RADIO_GET_SRC_EXTENPEND( buf );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return osal_build_uint32( buf, MAC_SRCMATCH_ENABLE_BITMAP_LEN );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|