at86rf232/src/tal.c File Reference

Copyright (c) 2013-2018 Microchip Technology Inc.

and its subsidiaries.

#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include "pal.h"
#include "return_val.h"
#include "tal.h"
#include "ieee_const.h"
#include "tal_pib.h"
#include "tal_irq_handler.h"
#include "at86rf232.h"
#include "stack_config.h"
#include "bmm.h"
#include "qmm.h"
#include "tal_rx.h"
#include "tal_tx.h"
#include "tal_constants.h"
#include "tal_internal.h"
#include "tal_slotted_csma.h"
#include "mac_build_config.h"

Macros
#define	PLL_LOCK_ATTEMPTS   (3)

Functions
tal_trx_status_t	set_trx_state (trx_cmd_t trx_cmd)
	Sets transceiver state. More...
static void	switch_pll_on (void)
	Switches the PLL on. More...
void	tal_task (void)
	TAL task handling. More...

Variables
uint8_t	last_frame_length
frame_info_t *	mac_frame_ptr
	Frame pointer for the frame structure provided by the MCL. More...
volatile bool	tal_awake_end_flag
csma_state_t	tal_csma_state
	CSMA state machine variable. More...
uint8_t *	tal_frame_to_tx
	Pointer to the 15.4 frame created by the TAL to be handed over to the transceiver. More...
queue_t	tal_incoming_frame_queue
	Queue that contains all frames that are uploaded from the trx, but have not be processed by the MCL yet. More...
tal_pib_t	tal_pib
	TAL PIBs. More...
buffer_t *	tal_rx_buffer = NULL
	Pointer to receive buffer that can be used to upload a frame from the trx. More...
bool	tal_rx_on_required
	Indicates if the transceiver needs to switch on its receiver by tal_task(), because it could not be switched on due to buffer shortage. More...
tal_state_t	tal_state
	Current state of the TAL state machine. More...
uint32_t	tal_timestamp
	Timestamp The timestamping is only required for beaconing networks or if timestamping is explicitly enabled. More...
tal_trx_status_t	tal_trx_status
	Current state of the transceiver. More...

#define PLL_LOCK_ATTEMPTS   (3)

static void switch_pll_on ( void  )

static

Switches the PLL on.

References Assert, CMD_PLL_ON, pal_get_current_time(), pal_sub_time_us(), pal_trx_irq_flag_clr, PLL_LOCK_DURATION_MAX_US, RG_IRQ_MASK, RG_IRQ_STATUS, RG_PLL_CF, RG_TRX_STATE, SR_TRX_STATUS, start_time, trx_bit_read(), TRX_IRQ_0_PLL_LOCK, TRX_IRQ_HIGH, TRX_OFF, trx_reg_read(), and trx_reg_write().

Referenced by set_trx_state().

void tal_task

(

void

)

TAL task handling.

This function

• Checks and allocates the receive buffer.
• Processes the TAL incoming frame queue.
• Implements the TAL state machine.

This function

• handles any pending IRQ flags
• Processes the TAL incoming frame queue. The function needs to be called on a regular basis.

References Assert, cca_done_handling(), CMD_RX_AACK_ON, CMD_RX_ON, csma_continue(), NULL, process_incoming_frame(), set_trx_state(), slotted_csma_state_handling(), TAL_IDLE, tal_incoming_frame_queue, tal_pib, tal_rx_buffer, tal_rx_on_required, TAL_SLOTTED_CSMA, tal_state, TAL_TX_AUTO, TAL_TX_DONE, and tx_done_handling().

uint8_t last_frame_length

frame_info_t* mac_frame_ptr

Frame pointer for the frame structure provided by the MCL.

volatile bool tal_awake_end_flag

csma_state_t tal_csma_state

CSMA state machine variable.

uint8_t* tal_frame_to_tx

Pointer to the 15.4 frame created by the TAL to be handed over to the transceiver.

queue_t tal_incoming_frame_queue

Queue that contains all frames that are uploaded from the trx, but have not be processed by the MCL yet.

tal_pib_t tal_pib

TAL PIBs.

buffer_t* tal_rx_buffer = NULL

Pointer to receive buffer that can be used to upload a frame from the trx.

uint32_t tal_timestamp

Timestamp The timestamping is only required for beaconing networks or if timestamping is explicitly enabled.