tal_auto_rx.c File Reference

This file implements function to handle received frames.

Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.

#include "tal_config.h"
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include "pal.h"
#include "return_val.h"
#include "tal.h"
#include "ieee_const.h"
#include "stack_config.h"
#include "bmm.h"
#include "qmm.h"
#include "tal_pib.h"
#include "tal_internal.h"

Functions
void	complete_rx_transaction (trx_id_t trx_id)
	Completes Rx transaction. More...
static void	handle_incoming_frame (trx_id_t trx_id)
	Handles incoming frame from transceiver. More...
void	handle_rx_end_irq (trx_id_t trx_id)
	Handle received frame interrupt. More...
void	process_incoming_frame (trx_id_t trx_id, buffer_t *buf_ptr)
	Parses received frame and create the frame_info_t structure. More...
static bool	upload_frame (trx_id_t trx_id)
	Parses received frame and create the frame_info_t structure. More...

Variables
frame_info_t *	rx_frm_info [NUM_TRX]

void complete_rx_transaction

(

trx_id_t

trx_id

)

Completes Rx transaction.

Parameters

trx_id

Transceiver identifier

References bmm_buffer_alloc(), BMM_BUFFER_POINTER, LARGE_BUFFER_SIZE, frame_info_tag::len_no_crc, frame_info_tag::mpdu, qmm_queue_append(), RF_BASE_ADDR_OFFSET, RG_RF09_EDV, tal_incoming_frame_queue, tal_pib, tal_rx_buffer, frame_info_tag::trx_id, and trx_reg_read().

Referenced by ack_transmission_done(), handle_incoming_frame(), and handle_rx_end_irq().

static void handle_incoming_frame ( trx_id_t  trx_id )

static

Handles incoming frame from transceiver.

Parameters

trx_id

Transceiver identifier

References ack_transmitting, complete_rx_transaction(), DEFAULT_FRAME_TYPES, FCF_ACK_REQUEST, FCF_FRAME_PENDING, FSK, is_ack_valid(), is_frame_an_ack(), MAC_SUCCESS, frame_info_tag::mpdu, PL_POS_FCF_1, RF_BASE_ADDR_OFFSET, RF_TX, RF_TXPREP, RG_BBC0_AFFTM, RG_BBC0_FSKPLL, SR_BBC0_AMCS_AACKFT, SR_BBC0_FSKC1_FSKPLH, stop_tal_timer(), switch_to_rx(), TAL_FRAME_PENDING, tal_pib, trx_bit_read(), trx_bit_write(), trx_reg_write(), trx_state, tx_done_handling(), tx_state, and TX_WAITING_FOR_ACK.

Referenced by handle_rx_end_irq().

void handle_rx_end_irq

(

trx_id_t

trx_id

)

Handle received frame interrupt.

This function handles transceiver interrupts for received frames.

Parameters

trx_id

Transceiver identifier

References complete_rx_transaction(), FSK, handle_incoming_frame(), RF_BASE_ADDR_OFFSET, RF_RX, RG_RF09_CMD, SR_BBC0_AMCS_AACK, SR_BBC0_AMCS_AACKFT, SR_BBC0_FSKPHRRX_FCST, SR_BBC0_FSKPHRRX_MS, start_rpc(), stop_rpc(), stop_tal_timer(), switch_to_rx(), TAL_IDLE, tal_pib, tal_state, trx_bit_read(), trx_bit_write(), trx_reg_write(), trx_state, TX_BACKOFF, TX_DEFER, tx_state, and upload_frame().

Referenced by tal_task().

void process_incoming_frame	(	trx_id_t	trx_id,
		buffer_t *	buf_ptr
	)

Parses received frame and create the frame_info_t structure.

This function parses the received frame and creates the frame_info_t structure to be sent to the MAC as a parameter of tal_rx_frame_cb().

Parameters

trx_id	Transceiver identifier
buf_ptr	Pointer to the buffer containing the received frame

References BMM_BUFFER_POINTER, frame_info_tag::buffer_header, frame_info_tag::len_no_crc, frame_info_tag::mpdu, scale_ed_value(), tal_pib, and tal_rx_frame_cb().

Referenced by tal_task().

static bool upload_frame ( trx_id_t  trx_id )

static

Parses received frame and create the frame_info_t structure.

This function parses the received frame and creates the frame_info_t structure to be sent to the MAC as a parameter of tal_rx_frame_cb().

Parameters

trx_id

Transceiver identifier

References Assert, BB_RX_FRM_BUF_OFFSET, BMM_BUFFER_POINTER, ED_VAL_LEN, LARGE_BUFFER_SIZE, frame_info_tag::len_no_crc, LQI_LEN, frame_info_tag::mpdu, RF_BASE_ADDR_OFFSET, RG_BBC0_FBRXS, RG_BBC0_RXFLL, tal_pib, tal_rx_buffer, and trx_read().

Referenced by handle_rx_end_irq().

frame_info_t* rx_frm_info[NUM_TRX]

Referenced by is_ack_valid(), and is_frame_an_ack().