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1248 lines
35 KiB
C
1248 lines
35 KiB
C
/*
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* Copyright (c) 2007, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: rf230bb.c,v 1.12 2010/09/17 21:59:09 dak664 Exp $
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*/
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/*
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* This code is almost device independent and should be easy to port.
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* Ported to Atmel RF230 21Feb2010 by dak
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*/
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#include <stdio.h>
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#include <string.h>
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#include "contiki.h"
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#if defined(__AVR__)
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#include <avr/io.h>
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#include <util/delay.h>
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//#include <avr/pgmspace.h>
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#elif defined(__MSP430__)
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#include <io.h>
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#endif
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#include "dev/leds.h"
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#include "dev/spi.h"
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#include "rf230bb.h"
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#include "net/packetbuf.h"
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#include "net/rime/rimestats.h"
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#include "net/netstack.h"
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#include "sys/timetable.h"
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#define WITH_SEND_CCA 0
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#if RF230_CONF_TIMESTAMPS
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#include "net/rime/timesynch.h"
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#define TIMESTAMP_LEN 3
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#else /* RF230_CONF_TIMESTAMPS */
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#define TIMESTAMP_LEN 0
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#endif /* RF230_CONF_TIMESTAMPS */
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//#define FOOTER_LEN 2
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#define FOOTER_LEN 0
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#ifndef RF230_CONF_CHECKSUM
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#define RF230_CONF_CHECKSUM 0
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#endif /* RF230_CONF_CHECKSUM */
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#ifndef RF230_CONF_AUTOACK
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#define RF230_CONF_AUTOACK 1
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#endif /* RF230_CONF_AUTOACK */
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#if RF230_CONF_AUTOACK
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static bool is_promiscuous;
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#endif
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#ifndef RF230_CONF_AUTORETRIES
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#define RF230_CONF_AUTORETRIES 2
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#endif /* RF230_CONF_AUTOACK */
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//Automatic and manual CRC both append 2 bytes to packets
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#if RF230_CONF_CHECKSUM || defined(RF230BB_HOOK_TX_PACKET)
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#include "lib/crc16.h"
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#endif /* RF230_CONF_CHECKSUM */
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#define CHECKSUM_LEN 2
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#define AUX_LEN (CHECKSUM_LEN + TIMESTAMP_LEN + FOOTER_LEN)
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struct timestamp {
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uint16_t time;
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uint8_t authority_level;
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};
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#define FOOTER1_CRC_OK 0x80
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#define FOOTER1_CORRELATION 0x7f
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/* Leave radio on for testing low power protocols */
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#if JACKDAW
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#define RADIOALWAYSON 1
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#else
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#define RADIOALWAYSON 1
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#endif
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#define DEBUG 0
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#if DEBUG
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#define PRINTF(...) //printf(__VA_ARGS__)
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#define PRINTSHORT(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#define PRINTSHORT(...) //printf(__VA_ARGS__)
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#endif
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/* See clock.c and httpd-cgi.c for RADIOSTATS code */
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#if WEBSERVER
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#define RADIOSTATS 1
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#endif
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#if RADIOSTATS
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uint8_t RF230_rsigsi;
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uint16_t RF230_sendpackets,RF230_receivepackets,RF230_sendfail,RF230_receivefail;
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#endif
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/* Track flow through driver, see contiki-raven-main.c for example of use */
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//#define DEBUGFLOWSIZE 64
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#if DEBUGFLOWSIZE
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uint8_t debugflowsize,debugflow[DEBUGFLOWSIZE];
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#define DEBUGFLOW(c) if (debugflowsize<(DEBUGFLOWSIZE-1)) debugflow[debugflowsize++]=c
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#else
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#define DEBUGFLOW(c)
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#endif
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/* XXX hack: these will be made as Chameleon packet attributes */
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rtimer_clock_t rf230_time_of_arrival, rf230_time_of_departure;
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int rf230_authority_level_of_sender;
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#if RF230_CONF_TIMESTAMPS
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static rtimer_clock_t setup_time_for_transmission;
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static unsigned long total_time_for_transmission, total_transmission_len;
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static int num_transmissions;
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#endif /* RF230_CONF_TIMESTAMPS */
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int rf230_packets_seen, rf230_packets_read;
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static uint8_t volatile pending;
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/* RF230 hardware delay times, from datasheet */
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typedef enum{
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TIME_TO_ENTER_P_ON = 510, /**< Transition time from VCC is applied to P_ON - most favorable case! */
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TIME_P_ON_TO_TRX_OFF = 510, /**< Transition time from P_ON to TRX_OFF. */
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TIME_SLEEP_TO_TRX_OFF = 880, /**< Transition time from SLEEP to TRX_OFF. */
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TIME_RESET = 6, /**< Time to hold the RST pin low during reset */
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TIME_ED_MEASUREMENT = 140, /**< Time it takes to do a ED measurement. */
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TIME_CCA = 140, /**< Time it takes to do a CCA. */
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TIME_PLL_LOCK = 150, /**< Maximum time it should take for the PLL to lock. */
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TIME_FTN_TUNING = 25, /**< Maximum time it should take to do the filter tuning. */
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TIME_NOCLK_TO_WAKE = 6, /**< Transition time from *_NOCLK to being awake. */
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TIME_CMD_FORCE_TRX_OFF = 1, /**< Time it takes to execute the FORCE_TRX_OFF command. */
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TIME_TRX_OFF_TO_PLL_ACTIVE = 180, /**< Transition time from TRX_OFF to: RX_ON, PLL_ON, TX_ARET_ON and RX_AACK_ON. */
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TIME_STATE_TRANSITION_PLL_ACTIVE = 1, /**< Transition time from PLL active state to another. */
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}radio_trx_timing_t;
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/*---------------------------------------------------------------------------*/
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PROCESS(rf230_process, "RF230 driver");
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/*---------------------------------------------------------------------------*/
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int rf230_on(void);
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int rf230_off(void);
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static int rf230_read(void *buf, unsigned short bufsize);
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static int rf230_prepare(const void *data, unsigned short len);
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static int rf230_transmit(unsigned short len);
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static int rf230_send(const void *data, unsigned short len);
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static int rf230_receiving_packet(void);
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static int pending_packet(void);
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static int rf230_cca(void);
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signed char rf230_last_rssi;
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uint8_t rf230_last_correlation;
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const struct radio_driver rf230_driver =
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{
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rf230_init,
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rf230_prepare,
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rf230_transmit,
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rf230_send,
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rf230_read,
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rf230_cca,
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rf230_receiving_packet,
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pending_packet,
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rf230_on,
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rf230_off
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};
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uint8_t RF230_receive_on,RF230_sleeping;
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static uint8_t channel;
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/* Received frames are buffered to rxframe in the interrupt routine in hal.c */
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hal_rx_frame_t rxframe;
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/*----------------------------------------------------------------------------*/
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/** \brief This function return the Radio Transceivers current state.
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*
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* \retval P_ON When the external supply voltage (VDD) is
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* first supplied to the transceiver IC, the
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* system is in the P_ON (Poweron) mode.
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* \retval BUSY_RX The radio transceiver is busy receiving a
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* frame.
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* \retval BUSY_TX The radio transceiver is busy transmitting a
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* frame.
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* \retval RX_ON The RX_ON mode enables the analog and digital
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* receiver blocks and the PLL frequency
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* synthesizer.
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* \retval TRX_OFF In this mode, the SPI module and crystal
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* oscillator are active.
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* \retval PLL_ON Entering the PLL_ON mode from TRX_OFF will
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* first enable the analog voltage regulator. The
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* transceiver is ready to transmit a frame.
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* \retval BUSY_RX_AACK The radio was in RX_AACK_ON mode and received
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* the Start of Frame Delimiter (SFD). State
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* transition to BUSY_RX_AACK is done if the SFD
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* is valid.
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* \retval BUSY_TX_ARET The radio transceiver is busy handling the
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* auto retry mechanism.
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* \retval RX_AACK_ON The auto acknowledge mode of the radio is
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* enabled and it is waiting for an incomming
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* frame.
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* \retval TX_ARET_ON The auto retry mechanism is enabled and the
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* radio transceiver is waiting for the user to
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* send the TX_START command.
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* \retval RX_ON_NOCLK The radio transceiver is listening for
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* incomming frames, but the CLKM is disabled so
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* that the controller could be sleeping.
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* However, this is only true if the controller
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* is run from the clock output of the radio.
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* \retval RX_AACK_ON_NOCLK Same as the RX_ON_NOCLK state, but with the
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* auto acknowledge module turned on.
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* \retval BUSY_RX_AACK_NOCLK Same as BUSY_RX_AACK, but the controller
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* could be sleeping since the CLKM pin is
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* disabled.
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* \retval STATE_TRANSITION The radio transceiver's state machine is in
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* transition between two states.
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*/
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static uint8_t
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radio_get_trx_state(void)
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{
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return hal_subregister_read(SR_TRX_STATUS);
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}
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/*----------------------------------------------------------------------------*/
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/** \brief This function checks if the radio transceiver is sleeping.
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*
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* \retval true The radio transceiver is in SLEEP or one of the *_NOCLK
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* states.
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* \retval false The radio transceiver is not sleeping.
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*/
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static bool radio_is_sleeping(void)
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{
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bool sleeping = false;
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/* The radio transceiver will be at SLEEP or one of the *_NOCLK states only if */
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/* the SLP_TR pin is high. */
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if (hal_get_slptr() != 0){
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sleeping = true;
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}
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return sleeping;
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}
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/*----------------------------------------------------------------------------*/
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/** \brief This function will reset the state machine (to TRX_OFF) from any of
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* its states, except for the SLEEP state.
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*/
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static void
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radio_reset_state_machine(void)
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{
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hal_set_slptr_low();
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delay_us(TIME_NOCLK_TO_WAKE);
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hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
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delay_us(TIME_CMD_FORCE_TRX_OFF);
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}
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/*---------------------------------------------------------------------------*/
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static char
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rf230_isidle(void)
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{
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uint8_t radio_state;
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radio_state = hal_subregister_read(SR_TRX_STATUS);
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if (radio_state != BUSY_TX_ARET &&
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radio_state != BUSY_RX_AACK &&
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radio_state != STATE_TRANSITION &&
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radio_state != BUSY_RX &&
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radio_state != BUSY_TX) {
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return(1);
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} else {
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// printf(".%u",radio_state);
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return(0);
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}
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}
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static void
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rf230_waitidle(void)
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{
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while (1) {
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if (rf230_isidle()) break;
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}
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}
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/*----------------------------------------------------------------------------*/
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/** \brief This function will change the current state of the radio
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* transceiver's internal state machine.
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*
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* \param new_state Here is a list of possible states:
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* - RX_ON Requested transition to RX_ON state.
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* - TRX_OFF Requested transition to TRX_OFF state.
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* - PLL_ON Requested transition to PLL_ON state.
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* - RX_AACK_ON Requested transition to RX_AACK_ON state.
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* - TX_ARET_ON Requested transition to TX_ARET_ON state.
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*
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* \retval RADIO_SUCCESS Requested state transition completed
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* successfully.
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* \retval RADIO_INVALID_ARGUMENT Supplied function parameter out of bounds.
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* \retval RADIO_WRONG_STATE Illegal state to do transition from.
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* \retval RADIO_BUSY_STATE The radio transceiver is busy.
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* \retval RADIO_TIMED_OUT The state transition could not be completed
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* within resonable time.
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*/
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static radio_status_t
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radio_set_trx_state(uint8_t new_state)
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{
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uint8_t original_state;
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/*Check function paramter and current state of the radio transceiver.*/
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if (!((new_state == TRX_OFF) ||
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(new_state == RX_ON) ||
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(new_state == PLL_ON) ||
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(new_state == RX_AACK_ON) ||
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(new_state == TX_ARET_ON))){
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return RADIO_INVALID_ARGUMENT;
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}
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if (radio_is_sleeping() == true){
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return RADIO_WRONG_STATE;
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}
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/* Wait for radio to finish previous operation */
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rf230_waitidle();
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// for(;;)
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// {
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original_state = radio_get_trx_state();
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// if (original_state != BUSY_TX_ARET &&
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// original_state != BUSY_RX_AACK &&
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// original_state != BUSY_RX &&
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// original_state != BUSY_TX)
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// break;
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// }
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if (new_state == original_state){
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return RADIO_SUCCESS;
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}
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/* At this point it is clear that the requested new_state is: */
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/* TRX_OFF, RX_ON, PLL_ON, RX_AACK_ON or TX_ARET_ON. */
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/* The radio transceiver can be in one of the following states: */
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/* TRX_OFF, RX_ON, PLL_ON, RX_AACK_ON, TX_ARET_ON. */
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if(new_state == TRX_OFF){
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radio_reset_state_machine(); /* Go to TRX_OFF from any state. */
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} else {
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/* It is not allowed to go from RX_AACK_ON or TX_AACK_ON and directly to */
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/* TX_AACK_ON or RX_AACK_ON respectively. Need to go via RX_ON or PLL_ON. */
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if ((new_state == TX_ARET_ON) &&
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(original_state == RX_AACK_ON)){
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/* First do intermediate state transition to PLL_ON, then to TX_ARET_ON. */
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/* The final state transition to TX_ARET_ON is handled after the if-else if. */
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hal_subregister_write(SR_TRX_CMD, PLL_ON);
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delay_us(TIME_STATE_TRANSITION_PLL_ACTIVE);
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} else if ((new_state == RX_AACK_ON) &&
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(original_state == TX_ARET_ON)){
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/* First do intermediate state transition to RX_ON, then to RX_AACK_ON. */
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/* The final state transition to RX_AACK_ON is handled after the if-else if. */
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hal_subregister_write(SR_TRX_CMD, RX_ON);
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delay_us(TIME_STATE_TRANSITION_PLL_ACTIVE);
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}
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/* Any other state transition can be done directly. */
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hal_subregister_write(SR_TRX_CMD, new_state);
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/* When the PLL is active most states can be reached in 1us. However, from */
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/* TRX_OFF the PLL needs time to activate. */
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if (original_state == TRX_OFF){
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delay_us(TIME_TRX_OFF_TO_PLL_ACTIVE);
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} else {
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delay_us(TIME_STATE_TRANSITION_PLL_ACTIVE);
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}
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} /* end: if(new_state == TRX_OFF) ... */
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/*Verify state transition.*/
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radio_status_t set_state_status = RADIO_TIMED_OUT;
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if (radio_get_trx_state() == new_state){
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set_state_status = RADIO_SUCCESS;
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}
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return set_state_status;
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}
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void
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rf230_set_promiscuous_mode(bool isPromiscuous) {
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if(isPromiscuous) {
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is_promiscuous = true;
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#if RF230_CONF_AUTOACK
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radio_set_trx_state(RX_ON);
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#endif
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} else {
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is_promiscuous = false;
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#if RF230_CONF_AUTOACK
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radio_set_trx_state(RX_AACK_ON);
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#endif
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}
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}
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bool
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rf230_is_ready_to_send() {
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switch(radio_get_trx_state()) {
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case BUSY_TX:
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case BUSY_TX_ARET:
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return false;
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}
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return true;
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}
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static void
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flushrx(void)
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{
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rxframe.length=0;
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}
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/*---------------------------------------------------------------------------*/
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static uint8_t locked, lock_on, lock_off;
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static void
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on(void)
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{
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ENERGEST_ON(ENERGEST_TYPE_LISTEN);
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#ifdef RF230BB_HOOK_RADIO_ON
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RF230BB_HOOK_RADIO_ON();
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#endif
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if (RF230_sleeping) {
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hal_set_slptr_low();
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delay_us(TIME_SLEEP_TO_TRX_OFF);
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// delay_us(TIME_SLEEP_TO_TRX_OFF);//extra delay for now, wake time depends on board capacitance
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RF230_sleeping=0;
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}
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rf230_waitidle();
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#if RF230_CONF_AUTOACK
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radio_set_trx_state(is_promiscuous?RX_ON:RX_AACK_ON);
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#else
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radio_set_trx_state(RX_ON);
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#endif
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// flushrx();
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// DEBUGFLOW('O');
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RF230_receive_on = 1;
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}
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static void
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off(void)
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{
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// rtimer_set(&rt, RTIMER_NOW()+ RTIMER_ARCH_SECOND*1UL, 1,(void *) rtimercycle, NULL);
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RF230_receive_on = 0;
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#ifdef RF230BB_HOOK_RADIO_OFF
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RF230BB_HOOK_RADIO_OFF();
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#endif
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// DEBUGFLOW('F');
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#if !RADIOALWAYSON
|
|
|
|
/* Wait any transmission to end */
|
|
rf230_waitidle();
|
|
|
|
/* Force the device into TRX_OFF. */
|
|
radio_reset_state_machine();
|
|
|
|
#if 0 //optionally sleep
|
|
/* Sleep Radio */
|
|
hal_set_slptr_high();
|
|
RF230_sleeping = 1;
|
|
#endif
|
|
|
|
#endif /* !RADIOALWAYSON */
|
|
|
|
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#define GET_LOCK() locked = 1
|
|
static void RELEASE_LOCK(void) {
|
|
if(lock_on) {
|
|
on();
|
|
lock_on = 0;
|
|
}
|
|
if(lock_off) {
|
|
off();
|
|
lock_off = 0;
|
|
}
|
|
locked = 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
set_txpower(uint8_t power)
|
|
{
|
|
if (power > TX_PWR_17_2DBM){
|
|
power=TX_PWR_17_2DBM;
|
|
}
|
|
if (radio_is_sleeping() ==true) {
|
|
PRINTF("rf230_set_txpower:Sleeping"); //happens with cxmac
|
|
} else {
|
|
hal_subregister_write(SR_TX_PWR, power);
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
rf230_init(void)
|
|
{
|
|
DEBUGFLOW('I');
|
|
|
|
/* Wait in case VCC just applied */
|
|
delay_us(TIME_TO_ENTER_P_ON);
|
|
|
|
/* Calibrate oscillator */
|
|
// calibrate_rc_osc_32k();
|
|
|
|
/* Initialize Hardware Abstraction Layer. */
|
|
hal_init();
|
|
|
|
/* Do full rf230 Reset */
|
|
hal_set_rst_low();
|
|
hal_set_slptr_low();
|
|
delay_us(TIME_RESET);
|
|
hal_set_rst_high();
|
|
|
|
/* Force transition to TRX_OFF. */
|
|
hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
|
|
delay_us(TIME_P_ON_TO_TRX_OFF);
|
|
|
|
/* Verify that it is a supported version */
|
|
uint8_t tvers = hal_register_read(RG_VERSION_NUM);
|
|
uint8_t tmanu = hal_register_read(RG_MAN_ID_0);
|
|
|
|
if ((tvers != RF230_REVA) && (tvers != RF230_REVB))
|
|
PRINTF("rf230: Unsupported version %u\n",tvers);
|
|
if (tmanu != SUPPORTED_MANUFACTURER_ID)
|
|
PRINTF("rf230: Unsupported manufacturer ID %u\n",tmanu);
|
|
|
|
PRINTF("rf230: Version %u, ID %u\n",tvers,tmanu);
|
|
hal_register_write(RG_IRQ_MASK, RF230_SUPPORTED_INTERRUPT_MASK);
|
|
|
|
/* Set up number of automatic retries */
|
|
hal_subregister_write(SR_MAX_FRAME_RETRIES, RF230_CONF_AUTORETRIES );
|
|
|
|
/* Use automatic CRC unless manual is specified */
|
|
#if RF230_CONF_CHECKSUM
|
|
hal_subregister_write(SR_TX_AUTO_CRC_ON, 0);
|
|
#else
|
|
hal_subregister_write(SR_TX_AUTO_CRC_ON, 1);
|
|
#endif
|
|
|
|
/* Start the packet receive process */
|
|
process_start(&rf230_process, NULL);
|
|
|
|
/* Leave radio in on state (?)*/
|
|
on();
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint8_t buffer[RF230_MAX_TX_FRAME_LENGTH+AUX_LEN];
|
|
static int
|
|
rf230_transmit(unsigned short payload_len)
|
|
{
|
|
int txpower;
|
|
uint8_t total_len;
|
|
uint8_t radiowason;
|
|
#if RF230_CONF_TIMESTAMPS
|
|
struct timestamp timestamp;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
#if RF230_CONF_CHECKSUM
|
|
uint16_t checksum;
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
|
|
GET_LOCK();
|
|
// DEBUGFLOW('T');
|
|
|
|
/* Save receiver state */
|
|
radiowason=RF230_receive_on;
|
|
|
|
/* If radio is sleeping we have to turn it on first */
|
|
if (RF230_sleeping) {
|
|
hal_set_slptr_low();
|
|
// delay_us(TIME_SLEEP_TO_TRX_OFF);
|
|
RF230_sleeping=0;
|
|
}
|
|
|
|
/* Wait for any previous operation or state transition to finish */
|
|
rf230_waitidle();
|
|
|
|
/* Prepare to transmit */
|
|
#if RF230_CONF_AUTORETRIES
|
|
radio_set_trx_state(TX_ARET_ON);
|
|
#else
|
|
radio_set_trx_state(PLL_ON);
|
|
#endif
|
|
|
|
txpower = 0;
|
|
|
|
if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
|
|
/* Remember the current transmission power */
|
|
txpower = rf230_get_txpower();
|
|
/* Set the specified transmission power */
|
|
set_txpower(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) - 1);
|
|
}
|
|
|
|
total_len = payload_len + AUX_LEN;
|
|
|
|
#if RF230_CONF_TIMESTAMPS
|
|
rtimer_clock_t txtime = timesynch_time();
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
|
|
/* Toggle the SLP_TR pin to initiate the frame transmission */
|
|
hal_set_slptr_high();
|
|
hal_set_slptr_low();
|
|
hal_frame_write(buffer, total_len);
|
|
|
|
if(RF230_receive_on) {
|
|
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
|
|
}
|
|
ENERGEST_ON(ENERGEST_TYPE_TRANSMIT);
|
|
|
|
#if RADIOSTATS
|
|
RF230_sendpackets++;
|
|
#endif
|
|
|
|
/* We wait until transmission has ended so that we get an
|
|
accurate measurement of the transmission time.*/
|
|
rf230_waitidle();
|
|
|
|
|
|
#ifdef ENERGEST_CONF_LEVELDEVICE_LEVELS
|
|
ENERGEST_OFF_LEVEL(ENERGEST_TYPE_TRANSMIT,rf230_get_txpower());
|
|
#endif
|
|
|
|
/* Restore the transmission power */
|
|
if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
|
|
set_txpower(txpower & 0xff);
|
|
}
|
|
|
|
/* Restore receive mode */
|
|
if(radiowason) {
|
|
// DEBUGFLOW('m');
|
|
on();
|
|
}
|
|
|
|
#if RF230_CONF_TIMESTAMPS
|
|
setup_time_for_transmission = txtime - timestamp.time;
|
|
|
|
if(num_transmissions < 10000) {
|
|
total_time_for_transmission += timesynch_time() - txtime;
|
|
total_transmission_len += total_len;
|
|
num_transmissions++;
|
|
}
|
|
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
|
|
ENERGEST_OFF(ENERGEST_TYPE_TRANSMIT);
|
|
if(RF230_receive_on) {
|
|
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
|
|
} else {
|
|
#if RADIOALWAYSON
|
|
/* Enable reception */
|
|
on();
|
|
#else
|
|
/* Go to lower power TRX_OFF state (turn off PLL) */
|
|
hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
|
|
#endif
|
|
}
|
|
|
|
RELEASE_LOCK();
|
|
return 0;
|
|
|
|
/* If we are using WITH_SEND_CCA, we get here if the packet wasn't
|
|
transmitted because of other channel activity. */
|
|
// RIMESTATS_ADD(contentiondrop);
|
|
// PRINTF("rf230: do_send() transmission never started\n");
|
|
|
|
//if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
|
|
/* Restore the transmission power */
|
|
// set_txpower(txpower & 0xff);
|
|
// }
|
|
|
|
// RELEASE_LOCK();
|
|
// return -3; /* Transmission never started! */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
rf230_prepare(const void *payload, unsigned short payload_len)
|
|
{
|
|
int ret = 0;
|
|
uint8_t total_len,*pbuf;
|
|
#if RF230_CONF_TIMESTAMPS
|
|
struct timestamp timestamp;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
#if RF230_CONF_CHECKSUM
|
|
uint16_t checksum;
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
|
|
GET_LOCK();
|
|
// DEBUGFLOW('P');
|
|
|
|
// PRINTF("rf230: sending %d bytes\n", payload_len);
|
|
// PRINTSHORT("s%d ",payload_len);
|
|
|
|
RIMESTATS_ADD(lltx);
|
|
|
|
#if RF230_CONF_CHECKSUM
|
|
checksum = crc16_data(payload, payload_len, 0);
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
|
|
/* Copy payload to RAM buffer */
|
|
total_len = payload_len + AUX_LEN;
|
|
if (total_len > RF230_MAX_TX_FRAME_LENGTH){
|
|
#if RADIOSTATS
|
|
RF230_sendfail++;
|
|
#endif
|
|
#if DEBUG
|
|
printf_P(PSTR("rf230_prepare: packet too large (%d, max: %d)\n"),total_len,RF230_MAX_TX_FRAME_LENGTH);
|
|
#endif
|
|
ret = -1;
|
|
goto bail;
|
|
}
|
|
pbuf=&buffer[0];
|
|
memcpy(pbuf,payload,payload_len);
|
|
pbuf+=payload_len;
|
|
|
|
#if RF230_CONF_CHECKSUM
|
|
memcpy(pbuf,&checksum,CHECKSUM_LEN);
|
|
pbuf+=CHECKSUM_LEN;
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
|
|
#if RF230_CONF_TIMESTAMPS
|
|
timestamp.authority_level = timesynch_authority_level();
|
|
timestamp.time = timesynch_time();
|
|
memcpy(pbuf,×tamp,TIMESTAMP_LEN);
|
|
pbuf+=TIMESTAMP_LEN;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
/*------------------------------------------------------------*/
|
|
|
|
#ifdef RF230BB_HOOK_TX_PACKET
|
|
#if !RF230_CONF_CHECKSUM
|
|
{ // Add a checksum before we log the packet out
|
|
uint16_t checksum;
|
|
checksum = crc16_data(payload, payload_len, 0);
|
|
memcpy(buffer+total_len-CHECKSUM_LEN,&checksum,CHECKSUM_LEN);
|
|
}
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
RF230BB_HOOK_TX_PACKET(buffer,total_len);
|
|
#endif
|
|
|
|
|
|
bail:
|
|
RELEASE_LOCK();
|
|
return ret;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
rf230_send(const void *payload, unsigned short payload_len)
|
|
{
|
|
int ret = 0;
|
|
|
|
#ifdef RF230BB_HOOK_IS_SEND_ENABLED
|
|
if(!RF230BB_HOOK_IS_SEND_ENABLED()) {
|
|
goto bail;
|
|
}
|
|
#endif
|
|
|
|
if((ret=rf230_prepare(payload, payload_len))) {
|
|
#if DEBUG
|
|
printf_P(PSTR("rf230_send: Unable to send, prep failed (%d)\n"),ret);
|
|
#endif
|
|
goto bail;
|
|
}
|
|
|
|
ret = rf230_transmit(payload_len);
|
|
|
|
bail:
|
|
return ret;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
rf230_off(void)
|
|
{
|
|
/* Don't do anything if we are already turned off. */
|
|
if(RF230_receive_on == 0) {
|
|
return 1;
|
|
}
|
|
|
|
/* If we are called when the driver is locked, we indicate that the
|
|
radio should be turned off when the lock is unlocked. */
|
|
if(locked) {
|
|
lock_off = 1;
|
|
return 1;
|
|
}
|
|
|
|
/* If we are currently receiving a packet
|
|
we don't actually switch the radio off now, but signal that the
|
|
driver should switch off the radio once the packet has been
|
|
received and processed, by setting the 'lock_off' variable. */
|
|
if (!rf230_isidle()) {
|
|
// if (radio_get_trx_state()==BUSY_RX) {
|
|
lock_off = 1;
|
|
return 1;
|
|
}
|
|
|
|
off();
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
rf230_on(void)
|
|
{
|
|
if(RF230_receive_on) {
|
|
return 1;
|
|
}
|
|
if(locked) {
|
|
DEBUGFLOW('L');
|
|
lock_on = 1;
|
|
return 1;
|
|
}
|
|
|
|
on();
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
uint8_t
|
|
rf230_get_channel(void)
|
|
{
|
|
//jackdaw reads zero channel, raven reads correct channel?
|
|
//return hal_subregister_read(SR_CHANNEL);
|
|
return channel;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
rf230_set_channel(uint8_t c)
|
|
{
|
|
/* Wait for any transmission to end. */
|
|
// PRINTF("rf230: Set Channel %u\n",c);
|
|
rf230_waitidle();
|
|
channel=c;
|
|
hal_subregister_write(SR_CHANNEL, c);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
rf230_set_pan_addr(unsigned pan,
|
|
unsigned addr,
|
|
const uint8_t ieee_addr[8])
|
|
//rf230_set_pan_addr(uint16_t pan,uint16_t addr,uint8_t *ieee_addr)
|
|
{
|
|
PRINTF("rf230: PAN=%x Short Addr=%x\n",pan,addr);
|
|
|
|
uint8_t abyte;
|
|
abyte = pan & 0xFF;
|
|
hal_register_write(RG_PAN_ID_0,abyte);
|
|
abyte = (pan >> 8*1) & 0xFF;
|
|
hal_register_write(RG_PAN_ID_1, abyte);
|
|
|
|
abyte = addr & 0xFF;
|
|
hal_register_write(RG_SHORT_ADDR_0, abyte);
|
|
abyte = (addr >> 8*1) & 0xFF;
|
|
hal_register_write(RG_SHORT_ADDR_1, abyte);
|
|
|
|
if (ieee_addr != NULL) {
|
|
PRINTF("MAC=%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_7, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_6, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_5, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_4, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_3, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_2, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_1, *ieee_addr++);
|
|
PRINTF(":%x",*ieee_addr);
|
|
hal_register_write(RG_IEEE_ADDR_0, *ieee_addr);
|
|
PRINTF("\n");
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/*
|
|
* Interrupt leaves frame intact in FIFO.
|
|
*/
|
|
#if RF230_CONF_TIMESTAMPS
|
|
static volatile rtimer_clock_t interrupt_time;
|
|
static volatile int interrupt_time_set;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
#if RF230_TIMETABLE_PROFILING
|
|
#define rf230_timetable_size 16
|
|
TIMETABLE(rf230_timetable);
|
|
TIMETABLE_AGGREGATE(aggregate_time, 10);
|
|
#endif /* RF230_TIMETABLE_PROFILING */
|
|
int
|
|
rf230_interrupt(void)
|
|
{
|
|
/* Poll the receive process, unless the stack thinks the radio is off */
|
|
#if RADIOALWAYSON
|
|
if (RF230_receive_on) {
|
|
DEBUGFLOW('+');
|
|
#endif
|
|
#if RF230_CONF_TIMESTAMPS
|
|
interrupt_time = timesynch_time();
|
|
interrupt_time_set = 1;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
|
|
process_poll(&rf230_process);
|
|
|
|
#if RF230_TIMETABLE_PROFILING
|
|
timetable_clear(&rf230_timetable);
|
|
TIMETABLE_TIMESTAMP(rf230_timetable, "interrupt");
|
|
#endif /* RF230_TIMETABLE_PROFILING */
|
|
|
|
pending = 1;
|
|
|
|
#if RADIOSTATS
|
|
RF230_receivepackets++;
|
|
#endif
|
|
rf230_packets_seen++;
|
|
|
|
#if RADIOALWAYSON
|
|
} else {
|
|
DEBUGFLOW('-');
|
|
rxframe.length=0;
|
|
}
|
|
#endif
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/* Process to handle input packets
|
|
* Receive interrupts cause this process to be polled
|
|
* It calls the core MAC layer which calls rf230_read to get the packet
|
|
*/
|
|
char rf230processflag; //for debugging process call problems
|
|
PROCESS_THREAD(rf230_process, ev, data)
|
|
{
|
|
int len;
|
|
PROCESS_BEGIN();
|
|
rf230processflag=99;
|
|
|
|
while(1) {
|
|
PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
|
|
rf230processflag=42;
|
|
#if RF230_TIMETABLE_PROFILING
|
|
TIMETABLE_TIMESTAMP(rf230_timetable, "poll");
|
|
#endif /* RF230_TIMETABLE_PROFILING */
|
|
|
|
pending = 0;
|
|
|
|
packetbuf_clear();
|
|
len = rf230_read(packetbuf_dataptr(), PACKETBUF_SIZE);
|
|
rf230processflag=1;
|
|
if(len > 0) {
|
|
packetbuf_set_datalen(len);
|
|
rf230processflag=2;
|
|
NETSTACK_RDC.input();
|
|
#if RF230_TIMETABLE_PROFILING
|
|
TIMETABLE_TIMESTAMP(rf230_timetable, "end");
|
|
timetable_aggregate_compute_detailed(&aggregate_time,
|
|
&rf230_timetable);
|
|
timetable_clear(&rf230_timetable);
|
|
#endif /* RF230_TIMETABLE_PROFILING */
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|
|
// Get packet from Radio if any, else return zero.
|
|
// At present the last frame is buffered in the interrupt routine so it does
|
|
// not access the hardware or change its status
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
rf230_read(void *buf, unsigned short bufsize)
|
|
{
|
|
uint8_t len,*framep;
|
|
#if FOOTER_LEN
|
|
uint8_t footer[FOOTER_LEN];
|
|
#endif /* FOOTER_LEN */
|
|
#if RF230_CONF_CHECKSUM
|
|
uint16_t checksum;
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
#if RF230_CONF_TIMESTAMPS
|
|
struct timestamp t;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
|
|
len=rxframe.length;
|
|
if (len==0) {
|
|
#if RADIOALWAYSON && DEBUGFLOWSIZE
|
|
if (RF230_receive_on==0) {if (debugflow[debugflowsize-1]!='z') DEBUGFLOW('z');} //cxmac calls with radio off?
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#if RADIOALWAYSON
|
|
if (RF230_receive_on) {
|
|
#endif
|
|
|
|
// PRINTSHORT("r%d",rxframe.length);
|
|
PRINTF("rf230_read: %u bytes lqi %u crc %u\n",rxframe.length,rxframe.lqi,rxframe.crc);
|
|
#if DEBUG>1
|
|
for (len=0;len<rxframe.length;len++) PRINTF(" %x",rxframe.data[len]);PRINTF("\n");
|
|
#endif
|
|
|
|
#if RF230_CONF_TIMESTAMPS
|
|
if(interrupt_time_set) {
|
|
rf230_time_of_arrival = interrupt_time;
|
|
interrupt_time_set = 0;
|
|
} else {
|
|
rf230_time_of_arrival = 0;
|
|
}
|
|
rf230_time_of_departure = 0;
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
// GET_LOCK();
|
|
rf230_packets_read++;
|
|
|
|
//if(len > RF230_MAX_PACKET_LEN) {
|
|
if(len > RF230_MAX_TX_FRAME_LENGTH) {
|
|
/* Oops, we must be out of sync. */
|
|
DEBUGFLOW('y');
|
|
flushrx();
|
|
RIMESTATS_ADD(badsynch);
|
|
// RELEASE_LOCK();
|
|
return 0;
|
|
}
|
|
|
|
if(len <= AUX_LEN) {
|
|
DEBUGFLOW('s');
|
|
PRINTF("len <= AUX_LEN\n");
|
|
flushrx();
|
|
RIMESTATS_ADD(tooshort);
|
|
// RELEASE_LOCK();
|
|
return 0;
|
|
}
|
|
|
|
if(len - AUX_LEN > bufsize) {
|
|
DEBUGFLOW('b');
|
|
PRINTF("len - AUX_LEN > bufsize\n");
|
|
flushrx();
|
|
RIMESTATS_ADD(toolong);
|
|
// RELEASE_LOCK();
|
|
return 0;
|
|
}
|
|
/* Transfer the frame, stripping the footer */
|
|
framep=&(rxframe.data[0]);
|
|
memcpy(buf,framep,len-AUX_LEN+CHECKSUM_LEN);
|
|
framep+=len-AUX_LEN;
|
|
/* Clear the length field to allow buffering of the next packet */
|
|
rxframe.length=0;
|
|
|
|
#if RF230_CONF_CHECKSUM
|
|
memcpy(&checksum,framep,CHECKSUM_LEN);
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
framep+=CHECKSUM_LEN;
|
|
#if RF230_CONF_TIMESTAMPS
|
|
memcpy(&t,framep,TIMESTAMP_LEN);
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
framep+=TIMESTAMP_LEN;
|
|
#if FOOTER_LEN
|
|
memcpy(footer,framep,FOOTER_LEN);
|
|
#endif
|
|
#if RF230_CONF_CHECKSUM
|
|
if(checksum != crc16_data(buf, len - AUX_LEN, 0)) {
|
|
DEBUGFLOW('K');
|
|
PRINTF("checksum failed 0x%04x != 0x%04x\n",
|
|
checksum, crc16_data(buf, len - AUX_LEN, 0));
|
|
}
|
|
|
|
if(footer[1] & FOOTER1_CRC_OK &&
|
|
checksum == crc16_data(buf, len - AUX_LEN, 0)) {
|
|
#else
|
|
if (1) {
|
|
// if(footer[1] & FOOTER1_CRC_OK) {
|
|
#endif /* RF230_CONF_CHECKSUM */
|
|
// rf230_last_rssi = footer[0];
|
|
rf230_last_rssi = hal_subregister_read(SR_RSSI);
|
|
// rf230_last_correlation = footer[1] & FOOTER1_CORRELATION;
|
|
rf230_last_correlation = rxframe.lqi;
|
|
packetbuf_set_attr(PACKETBUF_ATTR_RSSI, rf230_last_rssi);
|
|
packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, rf230_last_correlation);
|
|
|
|
RIMESTATS_ADD(llrx);
|
|
|
|
#if RF230_CONF_TIMESTAMPS
|
|
rf230_time_of_departure =
|
|
t.time +
|
|
setup_time_for_transmission +
|
|
(total_time_for_transmission * (len - 2)) / total_transmission_len;
|
|
|
|
rf230_authority_level_of_sender = t.authority_level;
|
|
|
|
packetbuf_set_attr(PACKETBUF_ATTR_TIMESTAMP, t.time);
|
|
#endif /* RF230_CONF_TIMESTAMPS */
|
|
|
|
} else {
|
|
DEBUGFLOW('X');
|
|
PRINTF("bad crc");
|
|
RIMESTATS_ADD(badcrc);
|
|
len = AUX_LEN;
|
|
}
|
|
|
|
/* Clean up in case of FIFO overflow! This happens for every full
|
|
* length frame and is signaled by FIFOP = 1 and FIFO = 0.
|
|
*/
|
|
// if(FIFOP_IS_1 && !FIFO_IS_1) {
|
|
/* printf("rf230_read: FIFOP_IS_1 1\n");*/
|
|
// flushrx();
|
|
// } else if(FIFOP_IS_1) {
|
|
/* Another packet has been received and needs attention. */
|
|
/* printf("attention\n");*/
|
|
// process_poll(&rf230_process);
|
|
// }
|
|
|
|
// RELEASE_LOCK();
|
|
|
|
#ifdef RF230BB_HOOK_RX_PACKET
|
|
RF230BB_HOOK_RX_PACKET(buf,len);
|
|
#endif
|
|
|
|
|
|
return len - AUX_LEN;
|
|
|
|
#if RADIOALWAYSON
|
|
} else {
|
|
DEBUGFLOW('R'); //Stack thought radio was off
|
|
return 0;
|
|
}
|
|
#endif
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
rf230_set_txpower(uint8_t power)
|
|
{
|
|
GET_LOCK();
|
|
set_txpower(power);
|
|
RELEASE_LOCK();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
uint8_t
|
|
rf230_get_txpower(void)
|
|
{
|
|
uint8_t power = TX_PWR_UNDEFINED;
|
|
if (radio_is_sleeping()) {
|
|
PRINTF("rf230_get_txpower:Sleeping");
|
|
} else {
|
|
power = hal_subregister_read(SR_TX_PWR);
|
|
}
|
|
return power;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
uint8_t
|
|
rf230_get_raw_rssi(void)
|
|
{
|
|
uint8_t rssi;
|
|
bool radio_was_off = 0;
|
|
|
|
/*The RSSI measurement should only be done in RX_ON or BUSY_RX.*/
|
|
if(!RF230_receive_on) {
|
|
radio_was_off = 1;
|
|
rf230_on();
|
|
}
|
|
|
|
rssi = (int)((signed char)hal_subregister_read(SR_RSSI));
|
|
|
|
if(radio_was_off) {
|
|
rf230_off();
|
|
}
|
|
return rssi;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
rf230_cca(void)
|
|
{
|
|
int cca;
|
|
int radio_was_off = 0;
|
|
|
|
/* If the radio is locked by an underlying thread (because we are
|
|
being invoked through an interrupt), we preted that the coast is
|
|
clear (i.e., no packet is currently being transmitted by a
|
|
neighbor). */
|
|
if(locked) {
|
|
return 1;
|
|
}
|
|
|
|
if(!RF230_receive_on) {
|
|
radio_was_off = 1;
|
|
rf230_on();
|
|
}
|
|
|
|
// cca = CCA_IS_1;
|
|
DEBUGFLOW('c');
|
|
cca=1;
|
|
|
|
if(radio_was_off) {
|
|
rf230_off();
|
|
}
|
|
return cca;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
rf230_receiving_packet(void)
|
|
{
|
|
uint8_t radio_state;
|
|
radio_state = hal_subregister_read(SR_TRX_STATUS);
|
|
if ((radio_state==BUSY_RX) || (radio_state==BUSY_RX_AACK)) {
|
|
DEBUGFLOW('B');
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
pending_packet(void)
|
|
{
|
|
if (pending) DEBUGFLOW('p');
|
|
return pending;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
|