mac_beacon.c File Reference

Implements the building of beacon frames and initiates transmission via CSMA-CA after reception of a beacon request frame in a nonbeacon-enabled PAN.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include "return_val.h"
#include "pal.h"
#include "bmm.h"
#include "qmm.h"
#include "tal.h"
#include "ieee_const.h"
#include "mac_msg_const.h"
#include "mac_api.h"
#include "mac_msg_types.h"
#include "mac_data_structures.h"
#include "stack_config.h"
#include "mac_internal.h"
#include "mac.h"
#include "mac_build_config.h"

Macros
#define	ADVNC_BCN_PREP_TIME   (50)
#define	BEACON_MAX_PEND_ADDR_CNT   (7)
#define	BEACON_PAYLOAD_LEN   (4)
#define	MAC_MIN_WAKEUP_US   (200)

Functions
static uint8_t	add_pending_extended_address_cb (void *buf_ptr, void *handle)
static uint8_t	add_pending_short_address_cb (void *buf_ptr, void *handle)
static uint8_t	mac_buffer_add_pending (uint8_t *buf_ptr)
void	mac_build_and_tx_beacon (bool beacon_enabled)
	Builds and transmits the beacon frame. More...
void	mac_process_beacon_request (buffer_t *msg)
	Processes a beacon request. More...
void	mac_start_beacon_timer (void)
	Starts the beacon timer. More...
static void	mac_t_beacon_cb (void *callback_parameter)
static void	mac_t_prepare_beacon_cb (void *callback_parameter)
static void	mac_t_superframe_cb (void *callback_parameter)
void	mac_tx_pending_bc_data (void)

Variables
static uint8_t	beacon_buffer [LARGE_BUFFER_SIZE]
static uint8_t *	beacon_ptr
static uint8_t	pending_address_count
static uint8_t	vpan_no

#define ADVNC_BCN_PREP_TIME   (50)

Referenced by mac_t_beacon_cb().

#define BEACON_MAX_PEND_ADDR_CNT   (7)

Referenced by add_pending_extended_address_cb(), and add_pending_short_address_cb().

#define BEACON_PAYLOAD_LEN   (4)

Referenced by mac_build_and_tx_beacon().

#define MAC_MIN_WAKEUP_US   (200)

static uint8_t add_pending_extended_address_cb ( void *  buf_ptr, void *  handle  )

static

References BEACON_MAX_PEND_ADDR_CNT, beacon_ptr, FCF_2_DEST_ADDR_OFFSET, FCF_ADDR_MASK, FCF_LONG_ADDR, frame_info_tag::mpdu, pending_address_count, PL_POS_DST_ADDR_START, and PL_POS_FCF_2.

Referenced by mac_buffer_add_pending().

static uint8_t add_pending_short_address_cb ( void *  buf_ptr, void *  handle  )

static

References BEACON_MAX_PEND_ADDR_CNT, beacon_ptr, FCF_2_DEST_ADDR_OFFSET, FCF_ADDR_MASK, FCF_SHORT_ADDR, frame_info_tag::mpdu, pending_address_count, PL_POS_DST_ADDR_START, and PL_POS_FCF_2.

Referenced by mac_buffer_add_pending().

static uint8_t mac_buffer_add_pending ( uint8_t *  buf_ptr )

static

References add_pending_extended_address_cb(), add_pending_short_address_cb(), beacon_ptr, search_t::criteria_func, indirect_data_q, pending_address_count, and qmm_queue_read().

Referenced by mac_build_and_tx_beacon().

static void mac_t_beacon_cb ( void *  callback_parameter )

static

References ADVNC_BCN_PREP_TIME, beacon_buffer, broadcast_q, FAILURE, FINAL_CAP_SLOT_DEFAULT, FUNC_PTR, MAC_ACTIVE_CAP, mac_final_cap_slot, MAC_SCAN_IDLE, mac_scan_state, MAC_SUCCESS, mac_superframe_state, mac_t_gts_cb(), mac_t_prepare_beacon_cb(), mac_t_superframe_cb(), mac_tx_pending_bc_data(), macBeaconTxTime, NON_BEACON_NWK, pal_add_time_us(), pal_sub_time_us(), pal_timer_start(), pal_timer_stop(), set_tal_pib_internal(), queue_tag::size, T_Beacon, T_Beacon_Preparation, T_CAP, T_Superframe, TAL_CONVERT_SYMBOLS_TO_US, TAL_CONVERT_US_TO_SYMBOLS, TAL_GET_BEACON_INTERVAL_TIME, TAL_GET_SUPERFRAME_DURATION_TIME, tal_pib, tal_tx_beacon(), TIMEOUT_ABSOLUTE, and TIMEOUT_RELATIVE.

Referenced by mac_start_beacon_timer().

static void mac_t_prepare_beacon_cb ( void *  callback_parameter )

static

References mac_build_and_tx_beacon(), and mac_trx_wakeup().

Referenced by mac_t_beacon_cb().

static void mac_t_superframe_cb ( void *  callback_parameter )

static

References MAC_INACTIVE, mac_sleep_trans(), and mac_superframe_state.

Referenced by mac_t_beacon_cb().

uint8_t beacon_buffer[LARGE_BUFFER_SIZE]

static

Referenced by mac_build_and_tx_beacon(), and mac_t_beacon_cb().

uint8_t* beacon_ptr

static

Referenced by add_pending_extended_address_cb(), add_pending_short_address_cb(), and mac_buffer_add_pending().

uint8_t pending_address_count

static

Referenced by add_pending_extended_address_cb(), add_pending_short_address_cb(), and mac_buffer_add_pending().

uint8_t vpan_no

static

Referenced by mac_build_and_tx_beacon().