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A work-in-progress rework of the Contiki MAC and radio layers. The 

main ideas are:

* Separates the Contiki low-layer network stack into four layers:
  network (e.g. sicslowpan / rime), Medium Access Control MAC
  (e.g. CSMA), Radio Duty Cycling RDC (e.g. ContikiMAC, X-MAC), and
  radio (e.g. cc2420).
* Introduces a new way to configure the network stack. Four #defines
  that specify what mechanism/protocol/driver to use at the four
  layers: NETSTACK_CONF_NETWORK, NETSTACK_CONF_MAC, NETSTACK_CONF_RDC,
  NETSTACK_CONF_RADIO.
* Adds a callback mechanism to inform the MAC and network layers about
  the fate of a transmitted packet: if the packet was not possible to
  transmit, the cause of the failure is reported, and if the packets
  was successfully transmitted, the number of tries before it was
  finally transmitted is reported.
* NULL-protocols at both the MAC and RDC layers: nullmac and nullrdc,
  which can be used when MAC and RDC functionality is not needed.
* Extends the radio API with three new functions that enable more
  efficient radio duty cycling protocols: channel check, pending
  packet, and receiving packet.
* New initialization mechanism, which takes advantage of the NETSTACK
  #defines.
This commit is contained in:
adamdunkels 2010-02-18 21:48:39 +00:00
parent 1817acae15
commit e34eb54960
29 changed files with 1176 additions and 768 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

259
core/dev/cc2420.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: cc2420.c,v 1.37 2010/01/14 23:32:05 adamdunkels Exp $
* @(#)$Id: cc2420.c,v 1.38 2010/02/18 21:48:39 adamdunkels Exp $
*/
/*
* This code is almost device independent and should be easy to port.
@ -52,11 +52,13 @@
#include "net/rime/packetbuf.h"
#include "net/rime/rimestats.h"
#include "net/netstack.h"
#include "sys/timetable.h"
#define WITH_SEND_CCA 0
#include "cc2420-arch-sfd.h"
#if CC2420_CONF_TIMESTAMPS
#include "net/rime/timesynch.h"
@ -112,30 +114,41 @@ static unsigned long total_time_for_transmission, total_transmission_len;
static int num_transmissions;
#endif /* CC2420_CONF_TIMESTAMPS */
int cc2420_packets_seen, cc2420_packets_read;
static uint8_t volatile pending;
/*---------------------------------------------------------------------------*/
PROCESS(cc2420_process, "CC2420 driver");
/*---------------------------------------------------------------------------*/
static void (* receiver_callback)(const struct radio_driver *);
int cc2420_on(void);
int cc2420_off(void);
int cc2420_read(void *buf, unsigned short bufsize);
static int cc2420_read(void *buf, unsigned short bufsize);
int cc2420_send(const void *data, unsigned short len);
void cc2420_set_receiver(void (* recv)(const struct radio_driver *d));
static int cc2420_prepare(const void *data, unsigned short len);
static int cc2420_transmit(unsigned short len);
static int cc2420_send(const void *data, unsigned short len);
static int cc2420_receiving_packet(void);
static int pending_packet(void);
static int cc2420_cca(void);
signed char cc2420_last_rssi;
uint8_t cc2420_last_correlation;
const struct radio_driver cc2420_driver =
{
cc2420_init,
cc2420_prepare,
cc2420_transmit,
cc2420_send,
cc2420_read,
cc2420_set_receiver,
cc2420_cca,
cc2420_receiving_packet,
pending_packet,
cc2420_on,
cc2420_off,
};
@ -257,13 +270,7 @@ set_txpower(uint8_t power)
#define FIFOP_THR(n) ((n) & 0x7f)
#define RXBPF_LOCUR (1 << 13);
/*---------------------------------------------------------------------------*/
void
cc2420_set_receiver(void (* recv)(const struct radio_driver *))
{
receiver_callback = recv;
}
/*---------------------------------------------------------------------------*/
void
int
cc2420_init(void)
{
uint16_t reg;
@ -315,10 +322,11 @@ cc2420_init(void)
cc2420_set_channel(26);
process_start(&cc2420_process, NULL);
return 1;
}
/*---------------------------------------------------------------------------*/
int
cc2420_send(const void *payload, unsigned short payload_len)
static int
cc2420_transmit(unsigned short payload_len)
{
int i, txpower;
uint8_t total_len;
@ -328,6 +336,7 @@ cc2420_send(const void *payload, unsigned short payload_len)
#if CC2420_CONF_CHECKSUM
uint16_t checksum;
#endif /* CC2420_CONF_CHECKSUM */
GET_LOCK();
txpower = 0;
@ -338,32 +347,8 @@ cc2420_send(const void *payload, unsigned short payload_len)
set_txpower(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) - 1);
}
PRINTF("cc2420: sending %d bytes\n", payload_len);
RIMESTATS_ADD(lltx);
/* Wait for any previous transmission to finish. */
while(status() & BV(CC2420_TX_ACTIVE));
/* Write packet to TX FIFO. */
strobe(CC2420_SFLUSHTX);
#if CC2420_CONF_CHECKSUM
checksum = crc16_data(payload, payload_len, 0);
#endif /* CC2420_CONF_CHECKSUM */
total_len = payload_len + AUX_LEN;
FASTSPI_WRITE_FIFO(&total_len, 1);
FASTSPI_WRITE_FIFO(payload, payload_len);
#if CC2420_CONF_CHECKSUM
FASTSPI_WRITE_FIFO(&checksum, CHECKSUM_LEN);
#endif /* CC2420_CONF_CHECKSUM */
#if CC2420_CONF_TIMESTAMPS
timestamp.authority_level = timesynch_authority_level();
timestamp.time = timesynch_time();
FASTSPI_WRITE_FIFO(&timestamp, TIMESTAMP_LEN);
#endif /* CC2420_CONF_TIMESTAMPS */
/* The TX FIFO can only hold one packet. Make sure to not overrun
* FIFO by waiting for transmission to start here and synchronizing
* with the CC2420_TX_ACTIVE check in cc2420_send.
@ -387,12 +372,6 @@ cc2420_send(const void *payload, unsigned short payload_len)
for(i = LOOP_20_SYMBOLS; i > 0; i--) {
if(SFD_IS_1) {
if(!(status() & BV(CC2420_TX_ACTIVE))) {
/* SFD went high yet we are not transmitting!
* => We started receiving a packet right now */
return RADIO_TX_ERR;
}
#if CC2420_CONF_TIMESTAMPS
rtimer_clock_t txtime = timesynch_time();
#endif /* CC2420_CONF_TIMESTAMPS */
@ -435,7 +414,7 @@ cc2420_send(const void *payload, unsigned short payload_len)
}
RELEASE_LOCK();
return RADIO_TX_OK;
return 0;
}
}
@ -450,7 +429,56 @@ cc2420_send(const void *payload, unsigned short payload_len)
}
RELEASE_LOCK();
return RADIO_TX_ERR; /* Transmission never started! */
return -3; /* Transmission never started! */
}
/*---------------------------------------------------------------------------*/
static int
cc2420_prepare(const void *payload, unsigned short payload_len)
{
uint8_t total_len;
#if CC2420_CONF_TIMESTAMPS
struct timestamp timestamp;
#endif /* CC2420_CONF_TIMESTAMPS */
#if CC2420_CONF_CHECKSUM
uint16_t checksum;
#endif /* CC2420_CONF_CHECKSUM */
GET_LOCK();
PRINTF("cc2420: sending %d bytes\n", payload_len);
RIMESTATS_ADD(lltx);
/* Wait for any previous transmission to finish. */
while(status() & BV(CC2420_TX_ACTIVE));
/* Write packet to TX FIFO. */
strobe(CC2420_SFLUSHTX);
#if CC2420_CONF_CHECKSUM
checksum = crc16_data(payload, payload_len, 0);
#endif /* CC2420_CONF_CHECKSUM */
total_len = payload_len + AUX_LEN;
FASTSPI_WRITE_FIFO(&total_len, 1);
FASTSPI_WRITE_FIFO(payload, payload_len);
#if CC2420_CONF_CHECKSUM
FASTSPI_WRITE_FIFO(&checksum, CHECKSUM_LEN);
#endif /* CC2420_CONF_CHECKSUM */
#if CC2420_CONF_TIMESTAMPS
timestamp.authority_level = timesynch_authority_level();
timestamp.time = timesynch_time();
FASTSPI_WRITE_FIFO(&timestamp, TIMESTAMP_LEN);
#endif /* CC2420_CONF_TIMESTAMPS */
RELEASE_LOCK();
return 0;
}
/*---------------------------------------------------------------------------*/
static int
cc2420_send(const void *payload, unsigned short payload_len)
{
cc2420_prepare(payload, payload_len);
return cc2420_transmit(payload_len);
}
/*---------------------------------------------------------------------------*/
int
@ -534,8 +562,8 @@ cc2420_set_channel(int c)
/*---------------------------------------------------------------------------*/
void
cc2420_set_pan_addr(unsigned pan,
unsigned addr,
const uint8_t *ieee_addr)
unsigned addr,
const uint8_t *ieee_addr)
{
uint16_t f = 0;
/*
@ -572,10 +600,8 @@ int
cc2420_interrupt(void)
{
#if CC2420_CONF_TIMESTAMPS
if(!interrupt_time_set) {
interrupt_time = timesynch_time();
interrupt_time_set = 1;
}
interrupt_time = timesynch_time();
interrupt_time_set = 1;
#endif /* CC2420_CONF_TIMESTAMPS */
CLEAR_FIFOP_INT();
@ -584,11 +610,16 @@ cc2420_interrupt(void)
timetable_clear(&cc2420_timetable);
TIMETABLE_TIMESTAMP(cc2420_timetable, "interrupt");
#endif /* CC2420_TIMETABLE_PROFILING */
pending = 1;
cc2420_packets_seen++;
return 1;
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(cc2420_process, ev, data)
{
int len;
PROCESS_BEGIN();
PRINTF("cc2420_process: started\n");
@ -599,25 +630,28 @@ PROCESS_THREAD(cc2420_process, ev, data)
TIMETABLE_TIMESTAMP(cc2420_timetable, "poll");
#endif /* CC2420_TIMETABLE_PROFILING */
if(receiver_callback != NULL) {
PRINTF("cc2420_process: calling receiver callback\n");
receiver_callback(&cc2420_driver);
pending = 0;
PRINTF("cc2420_process: calling receiver callback\n");
packetbuf_clear();
len = cc2420_read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len > 0) {
packetbuf_set_datalen(len);
NETSTACK_RDC.input();
#if CC2420_TIMETABLE_PROFILING
TIMETABLE_TIMESTAMP(cc2420_timetable, "end");
timetable_aggregate_compute_detailed(&aggregate_time,
&cc2420_timetable);
&cc2420_timetable);
timetable_clear(&cc2420_timetable);
#endif /* CC2420_TIMETABLE_PROFILING */
} else {
PRINTF("cc2420_process not receiving function\n");
flushrx();
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
int
static int
cc2420_read(void *buf, unsigned short bufsize)
{
uint8_t footer[2];
@ -630,12 +664,23 @@ cc2420_read(void *buf, unsigned short bufsize)
#endif /* CC2420_CONF_TIMESTAMPS */
if(!FIFOP_IS_1) {
/* If FIFO is 0, there is no packet in the RXFIFO. */
/* If FIFOP is 0, there is no packet in the RXFIFO. */
return 0;
}
#if CC2420_CONF_TIMESTAMPS
if(interrupt_time_set) {
cc2420_time_of_arrival = interrupt_time;
interrupt_time_set = 0;
} else {
cc2420_time_of_arrival = 0;
}
cc2420_time_of_departure = 0;
#endif /* CC2420_CONF_TIMESTAMPS */
GET_LOCK();
cc2420_packets_read++;
getrxbyte(&len);
if(len > CC2420_MAX_PACKET_LEN) {
@ -647,6 +692,7 @@ cc2420_read(void *buf, unsigned short bufsize)
}
if(len <= AUX_LEN) {
printf("len <= AUX_LEN\n");
flushrx();
RIMESTATS_ADD(tooshort);
RELEASE_LOCK();
@ -654,6 +700,7 @@ cc2420_read(void *buf, unsigned short bufsize)
}
if(len - AUX_LEN > bufsize) {
printf("len - AUX_LEN > bufsize\n");
flushrx();
RIMESTATS_ADD(toolong);
RELEASE_LOCK();
@ -690,19 +737,12 @@ cc2420_read(void *buf, unsigned short bufsize)
RIMESTATS_ADD(llrx);
#if CC2420_CONF_TIMESTAMPS
if(interrupt_time_set) {
cc2420_time_of_arrival = interrupt_time;
cc2420_time_of_departure =
t.time +
setup_time_for_transmission +
(total_time_for_transmission * (len - 2)) / total_transmission_len;
cc2420_authority_level_of_sender = t.authority_level;
interrupt_time_set = 0;
} else {
/* Bypass timesynch */
cc2420_authority_level_of_sender = timesynch_authority_level();
}
cc2420_time_of_departure =
t.time +
setup_time_for_transmission +
(total_time_for_transmission * (len - 2)) / total_transmission_len;
cc2420_authority_level_of_sender = t.authority_level;
packetbuf_set_attr(PACKETBUF_ATTR_TIMESTAMP, t.time);
#endif /* CC2420_CONF_TIMESTAMPS */
@ -720,6 +760,7 @@ cc2420_read(void *buf, unsigned short bufsize)
flushrx();
} else if(FIFOP_IS_1) {
/* Another packet has been received and needs attention. */
/* printf("attention\n");*/
process_poll(&cc2420_process);
}
@ -768,3 +809,67 @@ cc2420_rssi(void)
return rssi;
}
/*---------------------------------------------------------------------------*/
static int
cc2420_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(!receive_on) {
radio_was_off = 1;
cc2420_on();
}
while(!(status() & BV(CC2420_RSSI_VALID))) {
/* printf("cc2420_rssi: RSSI not valid.\n"); */
}
cca = CCA_IS_1;
if(radio_was_off) {
cc2420_off();
}
return cca;
}
/*---------------------------------------------------------------------------*/
int
cc2420_receiving_packet(void)
{
return SFD_IS_1;
}
/*---------------------------------------------------------------------------*/
static int
pending_packet(void)
{
return pending;
}
/*---------------------------------------------------------------------------*/
void
cc2420_ugly_hack_send_only_one_symbol(void)
{
uint8_t len;
GET_LOCK();
/* Write packet to TX FIFO. */
strobe(CC2420_SFLUSHTX);
len = 1;
FASTSPI_WRITE_FIFO(&len, 1);
FASTSPI_WRITE_FIFO(&len, 1);
strobe(CC2420_STXON);
while(!SFD_IS_1);
/* Turn radio off immediately after sending the first symbol. */
strobe(CC2420_SRFOFF);
RELEASE_LOCK();
return;
}
/*---------------------------------------------------------------------------*/

4
core/dev/cc2420.h
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: cc2420.h,v 1.7 2008/07/02 09:05:40 adamdunkels Exp $
* $Id: cc2420.h,v 1.8 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -44,7 +44,7 @@
#include "contiki.h"
#include "dev/radio.h"
void cc2420_init(void);
int cc2420_init(void);
#define CC2420_MAX_PACKET_LEN 127

25
core/dev/radio.h
View File

@ -42,7 +42,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: radio.h,v 1.6 2009/11/13 08:59:22 fros4943 Exp $
* $Id: radio.h,v 1.7 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -59,14 +59,30 @@
* The structure of a device driver for a radio in Contiki.
*/
struct radio_driver {
/** Send a packet */
int (* init)(void);
/** Prepare the radio with a packet to be sent. */
int (* prepare)(const void *payload, unsigned short payload_len);
/** Send the packet that has previously been prepared. */
int (* transmit)(unsigned short transmit_len);
/** Prepare & transmit a packet. */
int (* send)(const void *payload, unsigned short payload_len);
/** Read a received packet into a buffer. */
int (* read)(void *buf, unsigned short buf_len);
/** Set a function to be called when a packet has been received. */
void (* set_receive_function)(void (*f)(const struct radio_driver *d));
/** Perform a Clear-Channel Assessment (CCA) to find out if there is
a packet in the air or not. */
int (* channel_clear)(void);
/** Check if the radio driver is currently receiving a packet */
int (* receiving_packet)(void);
/** Check if the radio driver has just received a packet */
int (* pending_packet)(void);
/** Turn the radio on. */
int (* on)(void);
@ -83,5 +99,6 @@ enum {
#endif /* __RADIO_H__ */
/** @} */
/** @} */

4
core/net/mac/Makefile.mac
View File

@ -1,2 +1,2 @@
CONTIKI_SOURCEFILES += cxmac.c xmac.c nullmac.c lpp.c frame802154.c sicslowmac.c
CONTIKI_SOURCEFILES += framer.c framer-nullmac.c framer-802154.c csma.c
CONTIKI_SOURCEFILES += cxmac.c xmac.c nullmac.c lpp.c frame802154.c sicslowmac.c nullrdc.c mac.c
CONTIKI_SOURCEFILES += framer.c framer-nullmac.c framer-802154.c csma.c contikimac.c phase.c

6
core/net/mac/contikimac.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -28,12 +28,12 @@
*
* This file is part of the Contiki operating system.
*
* $Id: contikimac.c,v 1.1 2010/02/18 21:26:15 adamdunkels Exp $
* $Id: contikimac.c,v 1.2 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
* \file
* The Contiki power-saving MAC protocol (C-MAC)
* The Contiki power-saving MAC protocol (ContikiMAC)
* \author
* Adam Dunkels <adam@sics.se>
* Niclas Finne <nfi@sics.se>

6
core/net/mac/contikimac.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -28,12 +28,12 @@
*
* This file is part of the Contiki operating system.
*
* $Id: contikimac.h,v 1.1 2010/02/18 21:26:15 adamdunkels Exp $
* $Id: contikimac.h,v 1.2 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
* \file
* The Contiki power-saving MAC protocol
* The Contiki power-saving MAC protocol (ContikiMAC)
* \author
* Adam Dunkels <adam@sics.se>
*/

253
core/net/mac/csma.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: csma.c,v 1.5 2010/02/03 01:17:54 adamdunkels Exp $
* $Id: csma.c,v 1.6 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -47,170 +47,235 @@
#include "lib/random.h"
#include "net/netstack.h"
#include "lib/list.h"
#include "lib/memb.h"
#include <string.h>
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else /* DEBUG */
#define PRINTF(...)
#endif /* DEBUG */
struct queued_packet {
struct queued_packet *next;
struct queuebuf *buf;
struct ctimer retransmit_timer;
uint8_t retransmits;
mac_callback_t sent;
void *cptr;
uint8_t transmissions;
};
#define MAX_QUEUED_PACKETS 4
LIST(packet_list);
#define MAX_RETRANSMITS 2
#define MAX_QUEUED_PACKETS 8
MEMB(packet_memb, struct queued_packet, MAX_QUEUED_PACKETS);
static const struct mac_driver *mac;
static void (* receiver_callback)(const struct mac_driver *);
const struct mac_driver *csma_init(const struct mac_driver *psc);
/*---------------------------------------------------------------------------*/
#if CSMA_CONF_REXMIT
static void
free_packet(struct queued_packet *q)
{
queuebuf_free(q->buf);
memb_free(&packet_memb, q);
}
static void retransmit_packet(void *ptr);
static void
packet_sent(void *ptr, int status, int num_transmissions)
{
struct queued_packet *q = ptr;
clock_time_t time = 0;
mac_callback_t sent;
void *cptr;
int num_tx;
sent = q->sent;
cptr = q->cptr;
num_tx = q->transmissions;
if(status != MAC_TX_OK) {
switch(status) {
case MAC_TX_COLLISION:
PRINTF("csma: rexmit collision %d\n", q->transmissions);
break;
case MAC_TX_NOACK:
PRINTF("csma: rexmit noack %d\n", q->transmissions);
break;
default:
PRINTF("csma: rexmit err %d, %d\n", ret, q->transmissions);
}
time = NETSTACK_RDC.channel_check_interval();
if(time == 0) {
time = CLOCK_SECOND;
}
time = time + (random_rand() % (q->transmissions * 3 * time));
if(q->transmissions - 1 < MAX_RETRANSMITS) {
ctimer_set(&q->retransmit_timer, time,
retransmit_packet, q);
} else {
PRINTF("csma: drop after %d\n", q->transmissions);
free_packet(q);
mac_call_sent_callback(sent, ptr, status, num_tx);
}
} else {
PRINTF("csma: rexmit ok %d\n", q->transmissions);
free_packet(q);
mac_call_sent_callback(sent, ptr, status, num_tx);
}
}
static void
retransmit_packet(void *ptr)
{
int ret;
struct queued_packet *q = ptr;
queuebuf_to_packetbuf(q->buf);
ret = mac->send();
queuebuf_free(q->buf);
list_remove(packet_list, q);
memb_free(&packet_memb, q);
q->transmissions++;
NETSTACK_RDC.send(packet_sent, q);
}
/*---------------------------------------------------------------------------*/
static int
send_packet(void)
static void
sent_packet_1(void *ptr, int status, int num_transmissions)
{
struct queuebuf *buf;
int ret;
struct queued_packet *q = ptr;
clock_time_t time;
rimeaddr_t receiver;
/* Remember packet for later. */
rimeaddr_copy(&receiver, packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
buf = queuebuf_new_from_packetbuf();
ret = mac->send();
/* if(ret != MAC_TX_OK) {
printf("CSMA: err %d\n", ret);
}*/
if(rimeaddr_cmp(&receiver, &rimeaddr_null)) {
PRINTF("broadcast/");
}
if(status != MAC_TX_OK) {
switch(status) {
case MAC_TX_COLLISION:
PRINTF("csma: collision\n");
break;
case MAC_TX_NOACK:
PRINTF("csma: noack\n");
break;
default:
PRINTF("csma: err %d\n", ret);
}
} else {
PRINTF("csma: ok\n");
}
/* Check if we saw a collission, and if we have a queuebuf with the
packet available. Only retransmit unicast packets. Retransmit
only once, for now. */
if((ret == MAC_TX_COLLISION || ret == MAC_TX_NOACK) &&
buf != NULL && !rimeaddr_cmp(&receiver, &rimeaddr_null)) {
struct queued_packet *q;
q = memb_alloc(&packet_memb);
if(q == NULL) {
queuebuf_free(buf);
return ret;
if((status == MAC_TX_COLLISION || status == MAC_TX_NOACK) &&
!rimeaddr_cmp(&receiver, &rimeaddr_null)) {
/* If the packet couldn't be sent because of a collision or the
lack of an ACK, we let the other transmissions get through
before we try again. */
time = NETSTACK_RDC.channel_check_interval();
if(time == 0) {
time = CLOCK_SECOND;
}
q->buf = buf;
q->retransmits = 0;
time = time + (random_rand() % (3 * time));
if(ret == MAC_TX_COLLISION) {
/* If the packet wasn't sent because of a collission, we let the
other packet get through before we try again. */
time = mac->channel_check_interval();
if(time == 0) {
time = CLOCK_SECOND;
}
time = time + (random_rand() % (3 * time));
} else {
/* If the packet didn't get an ACK, we retransmit immediately. */
time = 0;
}
ctimer_set(&q->retransmit_timer, time,
retransmit_packet, q);
list_add(packet_list, q);
} else {
queuebuf_free(buf);
mac_callback_t sent;
void *cptr;
int num_tx;
sent = q->sent;
cptr = q->cptr;
num_tx = q->transmissions;
free_packet(q);
mac_call_sent_callback(sent, ptr, status, num_tx);
}
return ret;
}
/*---------------------------------------------------------------------------*/
static void
send_packet(mac_callback_t sent, void *ptr)
{
struct queued_packet *q;
/* Remember packet for later. */
q = memb_alloc(&packet_memb);
if(q != NULL) {
q->buf = queuebuf_new_from_packetbuf();
if(q != NULL) {
q->transmissions = 1;
q->sent = sent;
q->cptr = ptr;
NETSTACK_RDC.send(sent_packet_1, q);
return;
}
memb_free(&packet_memb, q);
}
PRINTF("csma: could not allocate queuebuf, will drop if collision or noack\n");
NETSTACK_RDC.send(sent, ptr);
}
#else /* CSMA_CONF_REXMIT */
static int
send_packet(void)
static void
send_packet(mac_callback_t sent, void *ptr)
{
return mac->send();
NETSTACK_RDC.send(NULL, NULL);
}
#endif /* CSMA_CONF_REXMIT */
/*---------------------------------------------------------------------------*/
static void
input_packet(const struct mac_driver *d)
input_packet(void)
{
if(receiver_callback) {
receiver_callback(&csma_driver);
}
}
/*---------------------------------------------------------------------------*/
static int
read_packet(void)
{
int len;
len = mac->read();
return len;
}
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{
receiver_callback = recv;
NETSTACK_NETWORK.input();
}
/*---------------------------------------------------------------------------*/
static int
on(void)
{
return mac->on();
return NETSTACK_RDC.on();
}
/*---------------------------------------------------------------------------*/
static int
off(int keep_radio_on)
{
return mac->off(keep_radio_on);
return NETSTACK_RDC.off(keep_radio_on);
}
/*---------------------------------------------------------------------------*/
static unsigned short
channel_check_interval(void)
{
if(mac->channel_check_interval) {
return mac->channel_check_interval();
if(NETSTACK_RDC.channel_check_interval) {
return NETSTACK_RDC.channel_check_interval();
}
return 0;
}
/*---------------------------------------------------------------------------*/
#define NAMEBUF_LEN 16
static char namebuf[NAMEBUF_LEN];
static void
init(void)
{
memb_init(&packet_memb);
/* PRINTF("CSMA with MAC %s, channel check rate %d Hz\n", mac->name,
CLOCK_SECOND / channel_check_interval());*/
memcpy(namebuf, "CSMA ", 5);
memcpy(namebuf + 5, NETSTACK_RDC.name, NAMEBUF_LEN - 6);
}
/*---------------------------------------------------------------------------*/
const struct mac_driver csma_driver = {
namebuf,
NULL,
init,
send_packet,
read_packet,
set_receive_function,
input_packet,
on,
off,
channel_check_interval,
};
/*---------------------------------------------------------------------------*/
const struct mac_driver *
csma_init(const struct mac_driver *psc)
{
memb_init(&packet_memb);
list_init(packet_list);
mac = psc;
mac->set_receive_function(input_packet);
/* printf("CSMA with MAC %s, channel check rate %d Hz\n", mac->name,
CLOCK_SECOND / channel_check_interval());*/
memcpy(namebuf, "CSMA ", 5);
memcpy(namebuf + 5, psc->name, NAMEBUF_LEN - 6);
return &csma_driver;
}
/*---------------------------------------------------------------------------*/

82
core/net/mac/cxmac.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: cxmac.c,v 1.9 2010/02/03 16:44:43 adamdunkels Exp $
* $Id: cxmac.c,v 1.10 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -43,6 +43,7 @@
#include "dev/leds.h"
#include "dev/radio.h"
#include "dev/watchdog.h"
#include "net/netstack.h"
#include "lib/random.h"
#include "net/mac/framer.h"
#include "net/mac/cxmac.h"
@ -157,8 +158,6 @@ static volatile unsigned char someone_is_sending = 0;
static volatile unsigned char we_are_sending = 0;
static volatile unsigned char radio_is_on = 0;
static const struct radio_driver *radio;
#undef LEDS_ON
#undef LEDS_OFF
#undef LEDS_TOGGLE
@ -193,8 +192,6 @@ static int announcement_radio_txpower;
for announcements from neighbors. */
static uint8_t is_listening;
static void (* receiver_callback)(const struct mac_driver *);
#if CXMAC_CONF_COMPOWER
static struct compower_activity current_packet;
#endif /* CXMAC_CONF_COMPOWER */
@ -224,19 +221,13 @@ static rtimer_clock_t stream_until;
#define MIN(a, b) ((a) < (b)? (a) : (b))
#endif /* MIN */
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{
receiver_callback = recv;
}
/*---------------------------------------------------------------------------*/
static void
on(void)
{
if(cxmac_is_on && radio_is_on == 0) {
radio_is_on = 1;
radio->on();
NETSTACK_RADIO.on();
LEDS_ON(LEDS_RED);
}
}
@ -247,7 +238,7 @@ off(void)
if(cxmac_is_on && radio_is_on != 0 && is_listening == 0 &&
is_streaming == 0) {
radio_is_on = 0;
radio->off();
NETSTACK_RADIO.off();
LEDS_OFF(LEDS_RED);
}
}
@ -571,7 +562,7 @@ send_packet(void)
rtimer_clock_t now = RTIMER_NOW();
/* See if we got an ACK */
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
len = NETSTACK_RADIO.read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len > 0) {
packetbuf_set_datalen(len);
if(framer_get()->parse()) {
@ -602,16 +593,16 @@ send_packet(void)
if(is_broadcast) {
#if WITH_STROBE_BROADCAST
radio->send(strobe, strobe_len);
NETSTACK_RADIO.send(strobe, strobe_len);
#else
/* restore the packet to send */
queuebuf_to_packetbuf(packet);
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
#endif
off();
} else {
rtimer_clock_t wt;
radio->send(strobe, strobe_len);
NETSTACK_RADIO.send(strobe, strobe_len);
#if 1
/* Turn off the radio for a while to let the other side
respond. We don't need to keep our radio on when we know
@ -649,7 +640,7 @@ send_packet(void)
/* Send the data packet. */
if((is_broadcast || got_strobe_ack || is_streaming) && collisions == 0) {
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
}
#if WITH_ENCOUNTER_OPTIMIZATION
@ -693,42 +684,27 @@ send_packet(void)
}
/*---------------------------------------------------------------------------*/
static int
qsend_packet(void)
static void
qsend_packet(mac_callback_t sent, void *ptr)
{
int ret;
if(someone_is_sending) {
PRINTF("cxmac: should queue packet, now just dropping %d %d %d %d.\n",
waiting_for_packet, someone_is_sending, we_are_sending, radio_is_on);
RIMESTATS_ADD(sendingdrop);
return MAC_TX_COLLISION;
ret = MAC_TX_COLLISION;
} else {
PRINTF("cxmac: send immediately.\n");
return send_packet();
ret = send_packet();
}
mac_call_sent_callback(sent, ptr, ret, 1);
}
/*---------------------------------------------------------------------------*/
static void
input_packet(const struct radio_driver *d)
{
if(receiver_callback) {
receiver_callback(&cxmac_driver);
}
}
/*---------------------------------------------------------------------------*/
static int
read_packet(void)
input_packet(void)
{
struct cxmac_hdr *hdr;
uint8_t len;
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len == 0) {
return 0;
}
packetbuf_set_datalen(len);
if(framer_get()->parse()) {
hdr = packetbuf_dataptr();
@ -763,7 +739,8 @@ read_packet(void)
waiting_for_packet = 0;
PRINTDEBUG("cxmac: data(%u)\n", packetbuf_datalen());
return packetbuf_datalen();
NETSTACK_MAC.input();
return;
} else {
PRINTDEBUG("cxmac: data not for us\n");
}
@ -790,7 +767,7 @@ read_packet(void)
someone_is_sending = 1;
waiting_for_packet = 1;
on();
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
PRINTDEBUG("cxmac: send strobe ack %u\n", packetbuf_totlen());
} else {
PRINTF("cxmac: failed to send strobe ack\n");
@ -809,7 +786,7 @@ read_packet(void)
/* We are done processing the strobe and we therefore return
to the caller. */
return RIME_OK;
return;
#if CXMAC_CONF_ANNOUNCEMENTS
} else if(hdr->type == TYPE_ANNOUNCEMENT) {
packetbuf_hdrreduce(sizeof(struct cxmac_hdr));
@ -824,7 +801,6 @@ read_packet(void)
} else {
PRINTF("cxmac: failed to parse (%u)\n", packetbuf_totlen());
}
return 0;
}
/*---------------------------------------------------------------------------*/
#if CXMAC_CONF_ANNOUNCEMENTS
@ -850,7 +826,7 @@ send_announcement(void *ptr)
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, &rimeaddr_null);
packetbuf_set_attr(PACKETBUF_ATTR_RADIO_TXPOWER, announcement_radio_txpower);
if(framer_get()->create()) {
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
}
}
}
@ -883,8 +859,8 @@ cxmac_set_announcement_radio_txpower(int txpower)
#endif /* CXMAC_CONF_ANNOUNCEMENTS */
}
/*---------------------------------------------------------------------------*/
const struct mac_driver *
cxmac_init(const struct radio_driver *d)
void
cxmac_init(void)
{
radio_is_on = 0;
waiting_for_packet = 0;
@ -893,8 +869,6 @@ cxmac_init(const struct radio_driver *d)
(void (*)(struct rtimer *, void *))powercycle, NULL);*/
cxmac_is_on = 1;
radio = d;
radio->set_receive_function(input_packet);
#if WITH_ENCOUNTER_OPTIMIZATION
list_init(encounter_list);
@ -908,7 +882,6 @@ cxmac_init(const struct radio_driver *d)
#endif /* CXMAC_CONF_ANNOUNCEMENTS */
CSCHEDULE_POWERCYCLE(DEFAULT_OFF_TIME);
return &cxmac_driver;
}
/*---------------------------------------------------------------------------*/
static int
@ -926,9 +899,9 @@ turn_off(int keep_radio_on)
{
cxmac_is_on = 0;
if(keep_radio_on) {
return radio->on();
return NETSTACK_RADIO.on();
} else {
return radio->off();
return NETSTACK_RADIO.off();
}
}
/*---------------------------------------------------------------------------*/
@ -943,8 +916,7 @@ const struct mac_driver cxmac_driver =
"CX-MAC",
cxmac_init,
qsend_packet,
read_packet,
set_receive_function,
input_packet,
turn_on,
turn_off,
channel_check_interval,

7
core/net/mac/cxmac.h
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: cxmac.h,v 1.3 2010/01/31 18:44:23 adamdunkels Exp $
* $Id: cxmac.h,v 1.4 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -60,10 +60,5 @@ struct cxmac_config {
extern const struct mac_driver cxmac_driver;
const struct mac_driver *cxmac_init(const struct radio_driver *d);
extern struct cxmac_config cxmac_config;
void cxmac_set_announcement_radio_txpower(int txpower);
#endif /* __CXMAC_H__ */

367
core/net/mac/lpp.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: lpp.c,v 1.30 2010/02/02 23:28:58 adamdunkels Exp $
* $Id: lpp.c,v 1.31 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -55,6 +55,7 @@
#include "lib/memb.h"
#include "lib/random.h"
#include "net/rime.h"
#include "net/netstack.h"
#include "net/mac/mac.h"
#include "net/mac/lpp.h"
#include "net/rime/packetbuf.h"
@ -73,7 +74,7 @@
#define PRINTF(...)
#endif
#define WITH_ACK_OPTIMIZATION 0
#define WITH_ACK_OPTIMIZATION 1
#define WITH_PROBE_AFTER_RECEPTION 0
#define WITH_PROBE_AFTER_TRANSMISSION 0
#define WITH_ENCOUNTER_OPTIMIZATION 1
@ -142,8 +143,6 @@ static uint8_t lpp_is_on;
static struct compower_activity current_packet;
static const struct radio_driver *radio;
static void (* receiver_callback)(const struct mac_driver *);
static struct pt dutycycle_pt;
static struct ctimer timer;
@ -156,6 +155,9 @@ struct queue_list_item {
struct queuebuf *packet;
struct ctimer removal_timer;
struct compower_activity compower;
mac_callback_t sent_callback;
void *sent_callback_ptr;
uint8_t num_transmissions;
#if WITH_PENDING_BROADCAST
uint8_t broadcast_flag;
#endif /* WITH_PENDING_BROADCAST */
@ -192,7 +194,7 @@ static struct ctimer stream_probe_timer, stream_off_timer;
static void
turn_radio_on(void)
{
radio->on();
NETSTACK_RADIO.on();
/* leds_on(LEDS_YELLOW);*/
}
/*---------------------------------------------------------------------------*/
@ -200,7 +202,7 @@ static void
turn_radio_off(void)
{
if(lpp_is_on && is_streaming == 0) {
radio->off();
NETSTACK_RADIO.off();
}
/* leds_off(LEDS_YELLOW);*/
}
@ -348,12 +350,16 @@ static void
remove_queued_packet(void *item)
{
struct queue_list_item *i = item;
mac_callback_t sent;
void *ptr;
int num_transmissions = 0;
int status;
PRINTF("%d.%d: removing queued packet\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);
ctimer_stop(&i->removal_timer);
ctimer_stop(&i->removal_timer);
queuebuf_free(i->packet);
list_remove(pending_packets_list, i);
list_remove(queued_packets_list, i);
@ -364,7 +370,16 @@ remove_queued_packet(void *item)
compower_accumulate(&i->compower);
}
sent = i->sent_callback;
ptr = i->sent_callback_ptr;
num_transmissions = i->num_transmissions;
memb_free(&queued_packets_memb, i);
if(num_transmissions == 0) {
status = MAC_TX_ERR;
} else {
status = MAC_TX_OK;
}
mac_call_sent_callback(sent, ptr, status, num_transmissions);
}
/*---------------------------------------------------------------------------*/
#if WITH_PENDING_BROADCAST
@ -423,7 +438,7 @@ send_probe(void)
/* XXX should first check access to the medium (CCA - Clear Channel
Assessment) and add LISTEN_TIME to off_time_adjustment if there
is a packet in the air. */
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
compower_accumulate(&compower_idle_activity);
}
@ -579,8 +594,8 @@ restart_dutycycle(clock_time_t initial_wait)
* immediately.
*
*/
static int
send_packet(void)
static void
send_packet(mac_callback_t sent, void *ptr)
{
struct lpp_hdr hdr;
clock_time_t timeout;
@ -604,8 +619,9 @@ send_packet(void)
#if WITH_ACK_OPTIMIZATION
if(packetbuf_attr(PACKETBUF_ATTR_PACKET_TYPE) == PACKETBUF_ATTR_PACKET_TYPE_ACK) {
/* Send ACKs immediately. */
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
return 1;
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
mac_call_sent_callback(sent, ptr, MAC_TX_OK, 1);
return;
}
#endif /* WITH_ACK_OPTIMIZATION */
@ -618,10 +634,15 @@ send_packet(void)
struct queue_list_item *i;
i = memb_alloc(&queued_packets_memb);
if(i != NULL) {
i->sent_callback = sent;
i->sent_callback_ptr = ptr;
i->num_transmissions = 0;
i->packet = queuebuf_new_from_packetbuf();
if(i->packet == NULL) {
memb_free(&queued_packets_memb, i);
return 0;
printf("null packet\n");
mac_call_sent_callback(sent, ptr, MAC_TX_ERR, 0);
return;
} else {
if(is_broadcast) {
timeout = PACKET_LIFETIME;
@ -651,9 +672,11 @@ send_packet(void)
turn_radio_on_for_neighbor(&hdr.receiver, i);
}
} else {
printf("i == NULL\n");
mac_call_sent_callback(sent, ptr, MAC_TX_ERR, 0);
}
}
return 1;
}
/*---------------------------------------------------------------------------*/
/**
@ -662,204 +685,192 @@ send_packet(void)
* destination address of the queued packet (if any), the queued packet
* is sent.
*/
static int
read_packet(void)
static void
input_packet(void)
{
int len;
struct lpp_hdr *hdr;
clock_time_t reception_time;
reception_time = clock_time();
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len > sizeof(struct lpp_hdr)) {
packetbuf_set_datalen(len);
hdr = packetbuf_dataptr();
packetbuf_hdrreduce(sizeof(struct lpp_hdr));
/* PRINTF("got packet type %d\n", hdr->type);*/
if(hdr->type == TYPE_PROBE) {
/* Parse incoming announcements */
struct announcement_msg *adata = packetbuf_dataptr();
int i;
hdr = packetbuf_dataptr();
packetbuf_hdrreduce(sizeof(struct lpp_hdr));
/* PRINTF("got packet type %d\n", hdr->type);*/
if(hdr->type == TYPE_PROBE) {
/* Parse incoming announcements */
struct announcement_msg *adata = packetbuf_dataptr();
int i;
/* PRINTF("%d.%d: probe from %d.%d with %d announcements\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1], adata->num);*/
/* PRINTF("%d.%d: probe from %d.%d with %d announcements\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1], adata->num);*/
for(i = 0; i < adata->num; ++i) {
/* PRINTF("%d.%d: announcement %d: %d\n",
for(i = 0; i < adata->num; ++i) {
/* PRINTF("%d.%d: announcement %d: %d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
adata->data[i].id,
adata->data[i].value);*/
announcement_heard(&hdr->sender,
adata->data[i].id,
adata->data[i].value);
}
announcement_heard(&hdr->sender,
adata->data[i].id,
adata->data[i].value);
}
/* Register the encounter with the sending node. We now know the
neighbor's phase. */
register_encounter(&hdr->sender, reception_time);
/* Register the encounter with the sending node. We now know the
neighbor's phase. */
register_encounter(&hdr->sender, reception_time);
/* Go through the list of packets to be sent to see if any of
them match the sender of the probe, or if they are a
broadcast packet that should be sent. */
if(list_length(queued_packets_list) > 0) {
struct queue_list_item *i;
for(i = list_head(queued_packets_list); i != NULL; i = i->next) {
struct lpp_hdr *qhdr;
/* Go through the list of packets to be sent to see if any of
them match the sender of the probe, or if they are a
broadcast packet that should be sent. */
if(list_length(queued_packets_list) > 0) {
struct queue_list_item *i;
for(i = list_head(queued_packets_list); i != NULL; i = i->next) {
struct lpp_hdr *qhdr;
qhdr = queuebuf_dataptr(i->packet);
if(rimeaddr_cmp(&qhdr->receiver, &hdr->sender) ||
rimeaddr_cmp(&qhdr->receiver, &rimeaddr_null)) {
queuebuf_to_packetbuf(i->packet);
qhdr = queuebuf_dataptr(i->packet);
if(rimeaddr_cmp(&qhdr->receiver, &hdr->sender) ||
rimeaddr_cmp(&qhdr->receiver, &rimeaddr_null)) {
queuebuf_to_packetbuf(i->packet);
#if WITH_PENDING_BROADCAST
if(i->broadcast_flag == BROADCAST_FLAG_NONE ||
i->broadcast_flag == BROADCAST_FLAG_SEND) {
radio->send(queuebuf_dataptr(i->packet),
queuebuf_datalen(i->packet));
PRINTF("%d.%d: got a probe from %d.%d, sent packet to %d.%d\n",
if(i->broadcast_flag == BROADCAST_FLAG_NONE ||
i->broadcast_flag == BROADCAST_FLAG_SEND) {
i->num_transmissions = 1;
NETSTACK_RADIO.send(queuebuf_dataptr(i->packet),
queuebuf_datalen(i->packet));
PRINTF("%d.%d: got a probe from %d.%d, sent packet to %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1],
qhdr->receiver.u8[0], qhdr->receiver.u8[1]);
hdr->sender.u8[0], hdr->sender.u8[1],
qhdr->receiver.u8[0], qhdr->receiver.u8[1]);
} else {
PRINTF("%d.%d: got a probe from %d.%d, did not send packet\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1]);
}
} else {
PRINTF("%d.%d: got a probe from %d.%d, did not send packet\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1]);
}
#else /* WITH_PENDING_BROADCAST */
radio->send(queuebuf_dataptr(i->packet),
queuebuf_datalen(i->packet));
PRINTF("%d.%d: got a probe from %d.%d, sent packet to %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1],
qhdr->receiver.u8[0], qhdr->receiver.u8[1]);
i->num_transmissions = 1;
NETSTACK_RADIO.send(queuebuf_dataptr(i->packet),
queuebuf_datalen(i->packet));
PRINTF("%d.%d: got a probe from %d.%d, sent packet to %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1],
qhdr->receiver.u8[0], qhdr->receiver.u8[1]);
#endif /* WITH_PENDING_BROADCAST */
/* Attribute the energy spent on listening for the probe
to this packet transmission. */
compower_accumulate(&i->compower);
/* Attribute the energy spent on listening for the probe
to this packet transmission. */
compower_accumulate(&i->compower);
/* If the packet was not a broadcast packet, we dequeue it
now. Broadcast packets should be transmitted to all
neighbors, and are dequeued by the dutycycling function
instead, after the appropriate time. */
if(!rimeaddr_cmp(&qhdr->receiver, &rimeaddr_null)) {
remove_queued_packet(i);
/* If the packet was not a broadcast packet, we dequeue it
now. Broadcast packets should be transmitted to all
neighbors, and are dequeued by the dutycycling function
instead, after the appropriate time. */
if(!rimeaddr_cmp(&qhdr->receiver, &rimeaddr_null)) {
remove_queued_packet(i);
#if WITH_PROBE_AFTER_TRANSMISSION
/* Send a probe packet to catch any reply from the other node. */
restart_dutycycle(PROBE_AFTER_TRANSMISSION_TIME);
/* Send a probe packet to catch any reply from the other node. */
restart_dutycycle(PROBE_AFTER_TRANSMISSION_TIME);
#endif /* WITH_PROBE_AFTER_TRANSMISSION */
#if WITH_STREAMING
if(is_streaming) {
ctimer_set(&stream_probe_timer, STREAM_PROBE_TIME,
send_stream_probe, NULL);
}
if(is_streaming) {
ctimer_set(&stream_probe_timer, STREAM_PROBE_TIME,
send_stream_probe, NULL);
}
#endif /* WITH_STREAMING */
}
}
#if WITH_ACK_OPTIMIZATION
if(packetbuf_attr(PACKETBUF_ATTR_RELIABLE) ||
packetbuf_attr(PACKETBUF_ATTR_ERELIABLE)) {
/* We're sending a packet that needs an ACK, so we keep
the radio on in anticipation of the ACK. */
turn_radio_on();
}
if(packetbuf_attr(PACKETBUF_ATTR_RELIABLE) ||
packetbuf_attr(PACKETBUF_ATTR_ERELIABLE)) {
/* We're sending a packet that needs an ACK, so we keep
the radio on in anticipation of the ACK. */
turn_radio_on();
}
#endif /* WITH_ACK_OPTIMIZATION */
}
}
}
} else if(hdr->type == TYPE_DATA) {
if(!rimeaddr_cmp(&hdr->receiver, &rimeaddr_null)) {
if(!rimeaddr_cmp(&hdr->receiver, &rimeaddr_node_addr)) {
/* Not broadcast or for us */
PRINTF("%d.%d: data not for us from %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1]);
return 0;
}
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, &hdr->receiver);
}
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, &hdr->sender);
}
PRINTF("%d.%d: got data from %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1]);
} else if(hdr->type == TYPE_DATA) {
if(!rimeaddr_cmp(&hdr->receiver, &rimeaddr_null)) {
if(!rimeaddr_cmp(&hdr->receiver, &rimeaddr_node_addr)) {
/* Not broadcast or for us */
PRINTF("%d.%d: data not for us from %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1]);
return;
}
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, &hdr->receiver);
}
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, &hdr->sender);
/* Accumulate the power consumption for the packet reception. */
compower_accumulate(&current_packet);
/* Convert the accumulated power consumption for the received
packet to packet attributes so that the higher levels can
keep track of the amount of energy spent on receiving the
packet. */
compower_attrconv(&current_packet);
PRINTF("%d.%d: got data from %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
hdr->sender.u8[0], hdr->sender.u8[1]);
/* Accumulate the power consumption for the packet reception. */
compower_accumulate(&current_packet);
/* Convert the accumulated power consumption for the received
packet to packet attributes so that the higher levels can
keep track of the amount of energy spent on receiving the
packet. */
compower_attrconv(&current_packet);
/* Clear the accumulated power consumption so that it is ready
for the next packet. */
compower_clear(&current_packet);
/* Clear the accumulated power consumption so that it is ready
for the next packet. */
compower_clear(&current_packet);
#if WITH_PENDING_BROADCAST
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_null)) {
/* This is a broadcast packet. Check the list of pending
packets to see if we are currently sending a broadcast. If
so, we refrain from sending our broadcast until one sleep
cycle period, so that the other broadcaster will have
finished sending. */
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_null)) {
/* This is a broadcast packet. Check the list of pending
packets to see if we are currently sending a broadcast. If
so, we refrain from sending our broadcast until one sleep
cycle period, so that the other broadcaster will have
finished sending. */
struct queue_list_item *i;
for(i = list_head(queued_packets_list); i != NULL; i = i->next) {
/* If the packet is a broadcast packet that is not yet
ready to be sent, we do not send it. */
if(i->broadcast_flag == BROADCAST_FLAG_PENDING) {
PRINTF("Someone else is sending, pending -> waiting\n");
set_broadcast_flag(i, BROADCAST_FLAG_WAITING);
}
}
}
#endif /* WITH_PENDING_BROADCAST */
#if WITH_PROBE_AFTER_RECEPTION
/* XXX send probe after receiving a packet to facilitate data
streaming. We must first copy the contents of the packetbuf into
a queuebuf to avoid overwriting the data with the probe packet. */
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_node_addr)) {
struct queuebuf *q;
q = queuebuf_new_from_packetbuf();
if(q != NULL) {
send_probe();
queuebuf_to_packetbuf(q);
queuebuf_free(q);
struct queue_list_item *i;
for(i = list_head(queued_packets_list); i != NULL; i = i->next) {
/* If the packet is a broadcast packet that is not yet
ready to be sent, we do not send it. */
if(i->broadcast_flag == BROADCAST_FLAG_PENDING) {
PRINTF("Someone else is sending, pending -> waiting\n");
set_broadcast_flag(i, BROADCAST_FLAG_WAITING);
}
}
}
#endif /* WITH_PENDING_BROADCAST */
#if WITH_PROBE_AFTER_RECEPTION
/* XXX send probe after receiving a packet to facilitate data
streaming. We must first copy the contents of the packetbuf into
a queuebuf to avoid overwriting the data with the probe packet. */
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_node_addr)) {
struct queuebuf *q;
q = queuebuf_new_from_packetbuf();
if(q != NULL) {
send_probe();
queuebuf_to_packetbuf(q);
queuebuf_free(q);
}
}
#endif /* WITH_PROBE_AFTER_RECEPTION */
#if WITH_ADAPTIVE_OFF_TIME
off_time = LOWEST_OFF_TIME;
restart_dutycycle(off_time);
off_time = LOWEST_OFF_TIME;
restart_dutycycle(off_time);
#endif /* WITH_ADAPTIVE_OFF_TIME */
}
len = packetbuf_datalen();
NETSTACK_MAC.input();
}
return len;
}
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{
receiver_callback = recv;
}
/*---------------------------------------------------------------------------*/
static int
@ -888,30 +899,9 @@ channel_check_interval(void)
return OFF_TIME + LISTEN_TIME;
}
/*---------------------------------------------------------------------------*/
const struct mac_driver lpp_driver = {
"LPP",
lpp_init,
send_packet,
read_packet,
set_receive_function,
on,
off,
channel_check_interval,
};
/*---------------------------------------------------------------------------*/
static void
input_packet(const struct radio_driver *d)
init(void)
{
if(receiver_callback) {
receiver_callback(&lpp_driver);
}
}
/*---------------------------------------------------------------------------*/
const struct mac_driver *
lpp_init(const struct radio_driver *d)
{
radio = d;
radio->set_receive_function(input_packet);
restart_dutycycle(random_rand() % OFF_TIME);
lpp_is_on = 1;
@ -921,6 +911,15 @@ lpp_init(const struct radio_driver *d)
memb_init(&queued_packets_memb);
list_init(queued_packets_list);
list_init(pending_packets_list);
return &lpp_driver;
}
/*---------------------------------------------------------------------------*/
const struct mac_driver lpp_driver = {
"LPP",
init,
send_packet,
input_packet,
on,
off,
channel_check_interval,
};
/*---------------------------------------------------------------------------*/

62
core/net/mac/mac.c Normal file
View File

@ -0,0 +1,62 @@
/*
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: mac.c,v 1.1 2010/02/18 21:48:39 adamdunkels Exp $
*/
#include "net/mac/mac.h"
#include <stdio.h>
/*---------------------------------------------------------------------------*/
void
mac_call_sent_callback(mac_callback_t sent, void *ptr, int status, int num_tx)
{
/* printf("mac_callback_t %p ptr %p status %d num_tx %d\n",
sent, ptr, status, num_tx);*/
/* switch(status) {
case MAC_TX_COLLISION:
printf("mac: collision after %d tx\n", num_tx);
break;
case MAC_TX_NOACK:
printf("mac: noack after %d tx\n", num_tx);
break;
case MAC_TX_OK:
printf("mac: sent after %d tx\n", num_tx);
break;
default:
printf("mac: error %d after %d tx\n", status, num_tx);
}*/
if(sent) {
sent(ptr, status, num_tx);
}
}
/*---------------------------------------------------------------------------*/

20
core/net/mac/mac.h
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: mac.h,v 1.11 2010/02/03 16:45:12 adamdunkels Exp $
* $Id: mac.h,v 1.12 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -44,6 +44,11 @@
#include "contiki-conf.h"
#include "dev/radio.h"
typedef void (* mac_callback_t)(void *ptr, int status, int transmissions);
void mac_call_sent_callback(mac_callback_t sent, void *ptr, int status, int num_tx);
/**
* The structure of a MAC protocol driver in Contiki.
*/
@ -51,17 +56,14 @@ struct mac_driver {
char *name;
/** Initialize the MAC driver */
const struct mac_driver *(* init)(const struct radio_driver *r);
void (* init)(void);
/** Send a packet from the Rime buffer */
int (* send)(void);
/** Read a received packet into the Rime buffer. */
int (* read)(void);
/** Set a function to be called when a packet has been received. */
void (* set_receive_function)(void (*f)(const struct mac_driver *d));
void (* send)(mac_callback_t sent_callback, void *ptr);
/** Callback for getting notified of incoming packet. */
void (* input)(void);
/** Turn the MAC layer on. */
int (* on)(void);

63
core/net/mac/nullmac.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: nullmac.c,v 1.13 2010/01/25 11:43:32 adamdunkels Exp $
* $Id: nullmac.c,v 1.14 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -40,57 +40,31 @@
#include "net/mac/nullmac.h"
#include "net/rime/packetbuf.h"
#include "net/netstack.h"
static const struct radio_driver *radio;
static void (* receiver_callback)(const struct mac_driver *);
/*---------------------------------------------------------------------------*/
static int
send_packet(void)
static void
send_packet(mac_callback_t sent, void *ptr)
{
if(radio->send(packetbuf_hdrptr(), packetbuf_totlen()) == RADIO_TX_OK) {
return MAC_TX_OK;
}
return MAC_TX_ERR;
NETSTACK_RDC.send(sent, ptr);
}
/*---------------------------------------------------------------------------*/
static void
input_packet(const struct radio_driver *d)
packet_input(void)
{
if(receiver_callback) {
receiver_callback(&nullmac_driver);
}
}
/*---------------------------------------------------------------------------*/
static int
read_packet(void)
{
int len;
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
packetbuf_set_datalen(len);
return len;
}
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{
receiver_callback = recv;
NETSTACK_NETWORK.input();
}
/*---------------------------------------------------------------------------*/
static int
on(void)
{
return radio->on();
return NETSTACK_RDC.on();
}
/*---------------------------------------------------------------------------*/
static int
off(int keep_radio_on)
{
if(keep_radio_on) {
return radio->on();
} else {
return radio->off();
}
return NETSTACK_RDC.off(keep_radio_on);
}
/*---------------------------------------------------------------------------*/
static unsigned short
@ -99,23 +73,18 @@ channel_check_interval(void)
return 0;
}
/*---------------------------------------------------------------------------*/
static void
init(void)
{
}
/*---------------------------------------------------------------------------*/
const struct mac_driver nullmac_driver = {
"nullmac",
nullmac_init,
init,
send_packet,
read_packet,
set_receive_function,
packet_input,
on,
off,
channel_check_interval,
};
/*---------------------------------------------------------------------------*/
const struct mac_driver *
nullmac_init(const struct radio_driver *d)
{
radio = d;
radio->set_receive_function(input_packet);
radio->on();
return &nullmac_driver;
}
/*---------------------------------------------------------------------------*/

3
core/net/mac/nullmac.h
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: nullmac.h,v 1.3 2007/10/23 20:57:37 adamdunkels Exp $
* $Id: nullmac.h,v 1.4 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -46,6 +46,5 @@
extern const struct mac_driver nullmac_driver;
const struct mac_driver *nullmac_init(const struct radio_driver *r);
#endif /* __NULLMAC_H__ */

101
core/net/mac/nullrdc.c Normal file
View File

@ -0,0 +1,101 @@
/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: nullrdc.c,v 1.1 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
* \file
* A MAC protocol that does not do anything.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "net/mac/nullrdc.h"
#include "net/rime/packetbuf.h"
#include "net/netstack.h"
/*---------------------------------------------------------------------------*/
static void
send_packet(mac_callback_t sent, void *ptr)
{
int ret;
if(NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen()) == RADIO_TX_OK) {
ret = MAC_TX_OK;
} else {
ret = MAC_TX_ERR;
}
mac_call_sent_callback(sent, ptr, ret, 1);
}
/*---------------------------------------------------------------------------*/
static void
packet_input(void)
{
NETSTACK_MAC.input();
}
/*---------------------------------------------------------------------------*/
static int
on(void)
{
return NETSTACK_RADIO.on();
}
/*---------------------------------------------------------------------------*/
static int
off(int keep_radio_on)
{
if(keep_radio_on) {
return NETSTACK_RADIO.on();
} else {
return NETSTACK_RADIO.off();
}
}
/*---------------------------------------------------------------------------*/
static unsigned short
channel_check_interval(void)
{
return 0;
}
/*---------------------------------------------------------------------------*/
static void
init(void)
{
on();
}
/*---------------------------------------------------------------------------*/
const struct mac_driver nullrdc_driver = {
"nullrdc",
init,
send_packet,
packet_input,
on,
off,
channel_check_interval,
};
/*---------------------------------------------------------------------------*/

50
core/net/mac/nullrdc.h Normal file
View File

@ -0,0 +1,50 @@
/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: nullrdc.h,v 1.1 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
* \file
* A MAC protocol implementation that does not do anything.
* \author
* Adam Dunkels <adam@sics.se>
*/
#ifndef __NULLRDC_H__
#define __NULLRDC_H__
#include "net/mac/mac.h"
#include "dev/radio.h"
extern const struct mac_driver nullrdc_driver;
#endif /* __NULLRDC_H__ */

137
core/net/mac/sicslowmac.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: sicslowmac.c,v 1.4 2009/09/18 16:37:17 nifi Exp $
* $Id: sicslowmac.c,v 1.5 2010/02/18 21:48:39 adamdunkels Exp $
*/
@ -48,6 +48,7 @@
#include "net/mac/sicslowmac.h"
#include "net/mac/frame802154.h"
#include "net/rime/packetbuf.h"
#include "net/netstack.h"
#include "lib/random.h"
#define DEBUG 0
@ -79,8 +80,6 @@ static uint16_t mac_dst_pan_id = IEEE802154_PANID;
*/
static uint16_t mac_src_pan_id = IEEE802154_PANID;
static const struct radio_driver *radio;
static void (* receiver_callback)(const struct mac_driver *);
/*---------------------------------------------------------------------------*/
static int
is_broadcast_addr(uint8_t mode, uint8_t *addr)
@ -94,8 +93,8 @@ is_broadcast_addr(uint8_t mode, uint8_t *addr)
return 1;
}
/*---------------------------------------------------------------------------*/
static int
send_packet(void)
static void
send_packet(mac_callback_t sent, void *ptr)
{
frame802154_t params;
uint8_t len;
@ -131,11 +130,12 @@ send_packet(void)
if(rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &rimeaddr_null)) {
/* Broadcast requires short address mode. */
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr.u8[0] = 0xFF;
params.dest_addr.u8[1] = 0xFF;
params.dest_addr[0] = 0xFF;
params.dest_addr[1] = 0xFF;
} else {
rimeaddr_copy(&params.dest_addr, packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
rimeaddr_copy((rimeaddr_t *)&params.dest_addr,
packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
params.fcf.dest_addr_mode = FRAME802154_LONGADDRMODE;
}
@ -146,115 +146,104 @@ send_packet(void)
* Set up the source address using only the long address mode for
* phase 1.
*/
rimeaddr_copy(&params.src_addr, &rimeaddr_node_addr);
rimeaddr_copy((rimeaddr_t *)&params.src_addr, &rimeaddr_node_addr);
params.payload = packetbuf_dataptr();
params.payload_len = packetbuf_datalen();
len = frame802154_hdrlen(&params);
if(packetbuf_hdralloc(len)) {
int ret;
frame802154_create(&params, packetbuf_hdrptr(), len);
PRINTF("6MAC-UT: %2X", params.fcf.frame_type);
PRINTADDR(params.dest_addr.u8);
PRINTF("%u %u (%u)\n", len, packetbuf_datalen(), packetbuf_totlen());
return radio->send(packetbuf_hdrptr(), packetbuf_totlen());
ret = NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
if(sent) {
switch(ret) {
case RADIO_TX_OK:
sent(ptr, MAC_TX_OK, 1);
break;
case RADIO_TX_ERR:
sent(ptr, MAC_TX_ERR, 1);
break;
}
}
} else {
PRINTF("6MAC-UT: too large header: %u\n", len);
}
return 0;
}
/*---------------------------------------------------------------------------*/
static void
input_packet(const struct radio_driver *d)
{
if(receiver_callback) {
receiver_callback(&sicslowmac_driver);
}
}
/*---------------------------------------------------------------------------*/
static int
read_packet(void)
input_packet(void)
{
frame802154_t frame;
int len;
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len > 0) {
packetbuf_set_datalen(len);
if(frame802154_parse(packetbuf_dataptr(), len, &frame) &&
packetbuf_hdrreduce(len - frame.payload_len)) {
if(frame.fcf.dest_addr_mode) {
if(frame.dest_pid != mac_src_pan_id &&
frame.dest_pid != FRAME802154_BROADCASTPANDID) {
/* Not broadcast or for our PAN */
PRINTF("6MAC: for another pan %u\n", frame.dest_pid);
return 0;
}
if(!is_broadcast_addr(frame.fcf.dest_addr_mode, frame.dest_addr.u8)) {
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, &frame.dest_addr);
if(!rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER),
&rimeaddr_node_addr)) {
/* Not for this node */
PRINTF("6MAC: not for us\n");
return 0;
}
len = packetbuf_datalen();
if(frame802154_parse(packetbuf_dataptr(), len, &frame) &&
packetbuf_hdrreduce(len - frame.payload_len)) {
if(frame.fcf.dest_addr_mode) {
if(frame.dest_pid != mac_src_pan_id &&
frame.dest_pid != FRAME802154_BROADCASTPANDID) {
/* Not broadcast or for our PAN */
PRINTF("6MAC: for another pan %u\n", frame.dest_pid);
return;
}
if(!is_broadcast_addr(frame.fcf.dest_addr_mode, frame.dest_addr)) {
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, (rimeaddr_t *)&frame.dest_addr);
if(!rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER),
&rimeaddr_node_addr)) {
/* Not for this node */
PRINTF("6MAC: not for us\n");
return;
}
}
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, &frame.src_addr);
PRINTF("6MAC-IN: %2X", frame.fcf.frame_type);
PRINTADDR(packetbuf_addr(PACKETBUF_ADDR_SENDER));
PRINTADDR(packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
PRINTF("%u\n", packetbuf_datalen());
return packetbuf_datalen();
} else {
PRINTF("6MAC: failed to parse hdr\n");
}
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, (rimeaddr_t *)&frame.src_addr);
PRINTF("6MAC-IN: %2X", frame.fcf.frame_type);
PRINTADDR(packetbuf_addr(PACKETBUF_ADDR_SENDER));
PRINTADDR(packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
PRINTF("%u\n", packetbuf_datalen());
NETSTACK_MAC.input();
} else {
PRINTF("6MAC: failed to parse hdr\n");
}
return 0;
}
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{
receiver_callback = recv;
}
/*---------------------------------------------------------------------------*/
static int
on(void)
{
return radio->on();
return NETSTACK_RADIO.on();
}
/*---------------------------------------------------------------------------*/
static int
off(int keep_radio_on)
{
if(keep_radio_on) {
return radio->on();
return NETSTACK_RADIO.on();
} else {
return radio->off();
return NETSTACK_RADIO.off();
}
}
/*---------------------------------------------------------------------------*/
static void
init(void)
{
mac_dsn = random_rand() % 256;
NETSTACK_RADIO.on();
}
/*---------------------------------------------------------------------------*/
const struct mac_driver sicslowmac_driver = {
"sicslowmac",
sicslowmac_init,
init,
send_packet,
read_packet,
set_receive_function,
input_packet,
on,
off,
};
/*---------------------------------------------------------------------------*/
const struct mac_driver *
sicslowmac_init(const struct radio_driver *d)
{
mac_dsn = random_rand() % 256;
radio = d;
radio->set_receive_function(input_packet);
radio->on();
return &sicslowmac_driver;
}
/*---------------------------------------------------------------------------*/

85
core/net/mac/xmac.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: xmac.c,v 1.52 2010/02/03 01:17:32 adamdunkels Exp $
* $Id: xmac.c,v 1.53 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -44,6 +44,7 @@
#include "dev/radio.h"
#include "dev/watchdog.h"
#include "lib/random.h"
#include "net/netstack.h"
#include "net/mac/framer.h"
#include "net/mac/xmac.h"
#include "net/rime.h"
@ -157,8 +158,6 @@ static volatile unsigned char someone_is_sending = 0;
static volatile unsigned char we_are_sending = 0;
static volatile unsigned char radio_is_on = 0;
static const struct radio_driver *radio;
#undef LEDS_ON
#undef LEDS_OFF
#undef LEDS_TOGGLE
@ -193,8 +192,6 @@ static int announcement_radio_txpower;
for announcements from neighbors. */
static uint8_t is_listening;
static void (* receiver_callback)(const struct mac_driver *);
#if XMAC_CONF_COMPOWER
static struct compower_activity current_packet;
#endif /* XMAC_CONF_COMPOWER */
@ -224,19 +221,13 @@ static rtimer_clock_t stream_until;
#define MIN(a, b) ((a) < (b)? (a) : (b))
#endif /* MIN */
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{
receiver_callback = recv;
}
/*---------------------------------------------------------------------------*/
static void
on(void)
{
if(xmac_is_on && radio_is_on == 0) {
radio_is_on = 1;
radio->on();
NETSTACK_RADIO.on();
LEDS_ON(LEDS_RED);
}
}
@ -247,7 +238,7 @@ off(void)
if(xmac_is_on && radio_is_on != 0 && is_listening == 0 &&
is_streaming == 0) {
radio_is_on = 0;
radio->off();
NETSTACK_RADIO.off();
LEDS_OFF(LEDS_RED);
}
}
@ -566,7 +557,7 @@ send_packet(void)
rtimer_clock_t now = RTIMER_NOW();
/* See if we got an ACK */
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
len = NETSTACK_RADIO.read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len > 0) {
packetbuf_set_datalen(len);
if(framer_get()->parse()) {
@ -597,16 +588,16 @@ send_packet(void)
if(is_broadcast) {
#if WITH_STROBE_BROADCAST
radio->send(strobe, strobe_len);
NETSTACK_RADIO.send(strobe, strobe_len);
#else
/* restore the packet to send */
queuebuf_to_packetbuf(packet);
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
#endif
off();
} else {
rtimer_clock_t wt;
radio->send(strobe, strobe_len);
NETSTACK_RADIO.send(strobe, strobe_len);
#if 1
/* Turn off the radio for a while to let the other side
respond. We don't need to keep our radio on when we know
@ -644,7 +635,7 @@ send_packet(void)
/* Send the data packet. */
if((is_broadcast || got_strobe_ack || is_streaming) && collisions == 0) {
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
}
#if WITH_ENCOUNTER_OPTIMIZATION
@ -688,42 +679,28 @@ send_packet(void)
}
/*---------------------------------------------------------------------------*/
static int
qsend_packet(void)
static void
qsend_packet(mac_callback_t sent, void *ptr)
{
int ret;
if(someone_is_sending) {
PRINTF("xmac: should queue packet, now just dropping %d %d %d %d.\n",
waiting_for_packet, someone_is_sending, we_are_sending, radio_is_on);
RIMESTATS_ADD(sendingdrop);
return MAC_TX_COLLISION;
ret = MAC_TX_COLLISION;
} else {
PRINTF("xmac: send immediately.\n");
return send_packet();
ret = send_packet();
}
mac_call_sent_callback(sent, ptr, ret, 1);
}
/*---------------------------------------------------------------------------*/
static void
input_packet(const struct radio_driver *d)
{
if(receiver_callback) {
receiver_callback(&xmac_driver);
}
}
/*---------------------------------------------------------------------------*/
static int
read_packet(void)
input_packet(void)
{
struct xmac_hdr *hdr;
uint8_t len;
packetbuf_clear();
len = radio->read(packetbuf_dataptr(), PACKETBUF_SIZE);
if(len == 0) {
return 0;
}
packetbuf_set_datalen(len);
if(framer_get()->parse()) {
hdr = packetbuf_dataptr();
@ -758,7 +735,8 @@ read_packet(void)
waiting_for_packet = 0;
PRINTDEBUG("xmac: data(%u)\n", packetbuf_datalen());
return packetbuf_datalen();
NETSTACK_MAC.input();
return;
} else {
PRINTDEBUG("xmac: data not for us\n");
}
@ -785,7 +763,7 @@ read_packet(void)
someone_is_sending = 1;
waiting_for_packet = 1;
on();
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
PRINTDEBUG("xmac: send strobe ack %u\n", packetbuf_totlen());
} else {
PRINTF("xmac: failed to send strobe ack\n");
@ -804,7 +782,7 @@ read_packet(void)
/* We are done processing the strobe and we therefore return
to the caller. */
return RIME_OK;
return;
#if XMAC_CONF_ANNOUNCEMENTS
} else if(hdr->type == TYPE_ANNOUNCEMENT) {
packetbuf_hdrreduce(sizeof(struct xmac_hdr));
@ -819,7 +797,6 @@ read_packet(void)
} else {
PRINTF("xmac: failed to parse (%u)\n", packetbuf_totlen());
}
return 0;
}
/*---------------------------------------------------------------------------*/
#if XMAC_CONF_ANNOUNCEMENTS
@ -845,7 +822,7 @@ send_announcement(void *ptr)
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, &rimeaddr_null);
packetbuf_set_attr(PACKETBUF_ATTR_RADIO_TXPOWER, announcement_radio_txpower);
if(framer_get()->create()) {
radio->send(packetbuf_hdrptr(), packetbuf_totlen());
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
}
}
}
@ -878,8 +855,8 @@ xmac_set_announcement_radio_txpower(int txpower)
#endif /* XMAC_CONF_ANNOUNCEMENTS */
}
/*---------------------------------------------------------------------------*/
const struct mac_driver *
xmac_init(const struct radio_driver *d)
static void
init(void)
{
radio_is_on = 0;
waiting_for_packet = 0;
@ -888,8 +865,6 @@ xmac_init(const struct radio_driver *d)
(void (*)(struct rtimer *, void *))powercycle, NULL);
xmac_is_on = 1;
radio = d;
radio->set_receive_function(input_packet);
#if WITH_ENCOUNTER_OPTIMIZATION
list_init(encounter_list);
@ -901,7 +876,6 @@ xmac_init(const struct radio_driver *d)
ctimer_set(&announcement_cycle_ctimer, ANNOUNCEMENT_TIME,
cycle_announcement, NULL);
#endif /* XMAC_CONF_ANNOUNCEMENTS */
return &xmac_driver;
}
/*---------------------------------------------------------------------------*/
static int
@ -918,9 +892,9 @@ turn_off(int keep_radio_on)
{
xmac_is_on = 0;
if(keep_radio_on) {
return radio->on();
return NETSTACK_RADIO.on();
} else {
return radio->off();
return NETSTACK_RADIO.off();
}
}
/*---------------------------------------------------------------------------*/
@ -933,10 +907,9 @@ channel_check_interval(void)
const struct mac_driver xmac_driver =
{
"X-MAC",
xmac_init,
init,
qsend_packet,
read_packet,
set_receive_function,
input_packet,
turn_on,
turn_off,
channel_check_interval,

6
core/net/mac/xmac.h
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: xmac.h,v 1.7 2009/03/23 21:06:26 adamdunkels Exp $
* $Id: xmac.h,v 1.8 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -60,10 +60,6 @@ struct xmac_config {
extern const struct mac_driver xmac_driver;
const struct mac_driver *xmac_init(const struct radio_driver *d);
extern struct xmac_config xmac_config;
void xmac_set_announcement_radio_txpower(int txpower);
#endif /* __XMAC_H__ */

86
core/net/netstack.h Normal file
View File

@ -0,0 +1,86 @@
/*
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: netstack.h,v 1.1 2010/02/18 21:50:33 adamdunkels Exp $
*/
/**
* \file
* Include file for the Contiki low-layer network stack (NETSTACK)
* \author
* Adam Dunkels <adam@sics.se>
*/
#ifndef NETSTACK_H
#define NETSTACK_H
#include "contiki-conf.h"
#ifndef NETSTACK_NETWORK
#ifdef NETSTACK_CONF_NETWORK
#define NETSTACK_NETWORK NETSTACK_CONF_NETWORK
#else /* NETSTACK_CONF_NETWORK */
#define NETSTACK_NETWORK rime_driver
#endif /* NETSTACK_CONF_NETWORK */
#endif /* NETSTACK_NETWORK */
#ifndef NETSTACK_MAC
#ifdef NETSTACK_CONF_MAC
#define NETSTACK_MAC NETSTACK_CONF_MAC
#else /* NETSTACK_CONF_MAC */
#define NETSTACK_MAC nullrdc_driver
#endif /* NETSTACK_CONF_MAC */
#endif /* NETSTACK_MAC */
#ifndef NETSTACK_RDC
#ifdef NETSTACK_CONF_RDC
#define NETSTACK_RDC NETSTACK_CONF_RDC
#else /* NETSTACK_CONF_RDC */
#define NETSTACK_RDC nullmac_driver
#endif /* NETSTACK_CONF_RDC */
#endif /* NETSTACK_RDC */
#ifndef NETSTACK_RADIO
#ifdef NETSTACK_CONF_RADIO
#define NETSTACK_RADIO NETSTACK_CONF_RADIO
#else /* NETSTACK_CONF_RADIO */
#define NETSTACK_RADIO cc2420_driver
#endif /* NETSTACK_CONF_RADIO */
#endif /* NETSTACK_RADIO */
#include "net/mac/mac.h"
#include "dev/radio.h"
extern const struct mac_driver NETSTACK_NETWORK;
extern const struct mac_driver NETSTACK_RDC;
extern const struct mac_driver NETSTACK_MAC;
extern const struct radio_driver NETSTACK_RADIO;
#endif /* NETSTACK_H */

7
core/net/rime.h
View File

@ -33,7 +33,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rime.h,v 1.24 2009/11/13 09:10:25 fros4943 Exp $
* $Id: rime.h,v 1.25 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -76,7 +76,7 @@
* This function should be called from the system boot up
* code to initialize Rime.
*/
void rime_init(const struct mac_driver *);
int rime_init(void);
/**
* \brief Send an incoming packet to Rime
@ -106,7 +106,7 @@ void rime_input(void);
void rime_driver_send(void);
void rime_set_output(void (*output_function)(void));
int rime_output(void);
void rime_output(void);
extern const struct mac_driver *rime_mac;
@ -122,6 +122,7 @@ static struct rime_sniffer name = { NULL, input_callback, output_callback }
void rime_sniffer_add(struct rime_sniffer *s);
void rime_sniffer_remove(struct rime_sniffer *s);
extern const struct mac_driver rime_driver;
/* Generic Rime return values. */
enum {

8
core/net/rime/chameleon.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: chameleon.c,v 1.7 2009/11/13 09:14:52 fros4943 Exp $
* $Id: chameleon.c,v 1.8 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -141,10 +141,8 @@ chameleon_output(struct channel *c)
printhdr(packetbuf_hdrptr(), packetbuf_hdrlen());
#endif /* DEBUG */
if(ret) {
if (rime_output() == RIME_OK) {
return 1;
}
return 0;
rime_output();
return 1;
}
}
return 0;

45
core/net/rime/rime-udp.c
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rime-udp.c,v 1.4 2009/06/24 16:31:49 nvt-se Exp $
* $Id: rime-udp.c,v 1.5 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -103,8 +103,8 @@ PROCESS_THREAD(rime_udp_process, ev, data)
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static int
send_packet(void)
static void
send_packet(mac_callback_t sent_callback, void *ptr)
{
const rimeaddr_t *addr;
@ -115,6 +115,7 @@ send_packet(void)
if(rimeaddr_cmp(&rimeaddr_null, addr)) {
uip_udp_packet_send(broadcast_conn,
packetbuf_hdrptr(), packetbuf_totlen());
mac_call_sent_callback(sent_callback, ptr, MAC_TX_OK, 1);
} else {
uip_ip6addr(&unicast_conn->ripaddr, 0xfe80, 0, 0, 0, 0, 0, 0, 0);
uip_netif_addr_autoconf_set(&unicast_conn->ripaddr, (uip_lladdr_t *)addr);
@ -122,11 +123,11 @@ send_packet(void)
packetbuf_hdrptr(), packetbuf_totlen());
uip_create_unspecified(&unicast_conn->ripaddr);
}
return 1;
return;
}
/*---------------------------------------------------------------------------*/
static int
read_packet(void)
input_packet(void)
{
packetbuf_set_datalen(uip_datalen());
return uip_datalen();
@ -150,20 +151,26 @@ off(int keep_radio_on)
return 0;
}
/*---------------------------------------------------------------------------*/
const struct mac_driver rime_udp_driver = {
"rime-udp",
rime_udp_init,
send_packet,
read_packet,
set_receive_function,
on,
off,
};
/*---------------------------------------------------------------------------*/
const struct mac_driver *
rime_udp_init(const struct radio_driver *d)
static unsigned short
check_interval(void)
{
process_start(&rime_udp_process, NULL);
return &rime_udp_driver;
return 0;
}
/*---------------------------------------------------------------------------*/
static int
init(void)
{
process_start(&rime_udp_process, NULL);
return 1;
}
/*---------------------------------------------------------------------------*/
const struct mac_driver rime_udp_driver = {
"rime-udp",
init,
send_packet,
input_packet,
on,
off,
check_interval,
};
/*---------------------------------------------------------------------------*/

4
core/net/rime/rime-udp.h
View File

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rime-udp.h,v 1.1 2009/04/06 13:13:26 nvt-se Exp $
* $Id: rime-udp.h,v 1.2 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -46,6 +46,4 @@
extern const struct mac_driver rime_udp_driver;
const struct mac_driver *rime_udp_init(const struct radio_driver *r);
#endif /* __UDPMAC_H__ */

89
core/net/rime/rime.c
View File

@ -33,7 +33,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rime.c,v 1.24 2010/02/03 20:38:33 adamdunkels Exp $
* $Id: rime.c,v 1.25 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -43,6 +43,15 @@
* Adam Dunkels <adam@sics.se>
*/
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
#include "net/netstack.h"
#include "net/rime.h"
#include "net/rime/chameleon.h"
#include "net/rime/neighbor.h"
@ -90,31 +99,27 @@ rime_sniffer_remove(struct rime_sniffer *s)
}
/*---------------------------------------------------------------------------*/
static void
input(const struct mac_driver *r)
input(void)
{
int len;
struct rime_sniffer *s;
len = rime_mac->read();
if(len > 0) {
for(s = list_head(sniffers); s != NULL; s = s->next) {
if(s->input_callback != NULL) {
s->input_callback();
}
for(s = list_head(sniffers); s != NULL; s = s->next) {
if(s->input_callback != NULL) {
s->input_callback();
}
RIMESTATS_ADD(rx);
chameleon_input();
}
RIMESTATS_ADD(rx);
chameleon_input();
}
/*---------------------------------------------------------------------------*/
void
rime_init(const struct mac_driver *m)
static void
init(void)
{
queuebuf_init();
packetbuf_clear();
announcement_init();
rime_mac = m;
rime_mac->set_receive_function(input);
rime_mac = &NETSTACK_MAC;
chameleon_init(&chameleon_bitopt);
#if ! RIME_CONF_NO_POLITE_ANNOUCEMENTS
/* XXX This is initializes the transmission of announcements but it
@ -131,26 +136,50 @@ rime_init(const struct mac_driver *m)
#endif /* ! RIME_CONF_NO_POLITE_ANNOUCEMENTS */
}
/*---------------------------------------------------------------------------*/
int
static void
packet_sent(void *ptr, int status, int num_tx)
{
switch(status) {
case MAC_TX_COLLISION:
PRINTF("rime: collision after %d tx\n", num_tx);
break;
case MAC_TX_NOACK:
PRINTF("rime: noack after %d tx\n", num_tx);
break;
case MAC_TX_OK:
PRINTF("rime: sent after %d tx\n", num_tx);
break;
default:
PRINTF("rime: error %d after %d tx\n", status, num_tx);
}
if(status == MAC_TX_OK) {
struct rime_sniffer *s;
/* Call sniffers, but only if the packet was sent. */
for(s = list_head(sniffers); s != NULL; s = s->next) {
if(s->output_callback != NULL) {
s->output_callback();
}
}
}
}
/*---------------------------------------------------------------------------*/
void
rime_output(void)
{
struct rime_sniffer *s;
RIMESTATS_ADD(tx);
packetbuf_compact();
if(rime_mac) {
if(rime_mac->send() == MAC_TX_OK) {
/* Call sniffers, but only if the packet was sent. */
for(s = list_head(sniffers); s != NULL; s = s->next) {
if(s->output_callback != NULL) {
s->output_callback();
}
}
return RIME_OK;
}
}
return RIME_ERR;
NETSTACK_MAC.send(packet_sent, NULL);
}
/*---------------------------------------------------------------------------*/
const struct mac_driver rime_driver = {
"Rime",
init,
NULL,
input,
NULL,
NULL,
NULL,
};
/** @} */

37
core/net/sicslowpan.c
View File

@ -32,7 +32,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: sicslowpan.c,v 1.17 2010/02/08 21:59:21 adamdunkels Exp $
* $Id: sicslowpan.c,v 1.18 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
* \file
@ -54,6 +54,7 @@
#include "net/uip-netif.h"
#include "net/rime.h"
#include "net/sicslowpan.h"
#include "net/netstack.h"
#define DEBUG 0
#if DEBUG
@ -1110,11 +1111,9 @@ send_packet(rimeaddr_t *dest)
*/
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, dest);
if(sicslowpan_mac != NULL) {
/** \todo: Fix sending delays so they aren't blocking, or even better would
* be to figure out how to get rid of delays entirely */
sicslowpan_mac->send();
}
/* XXX we should provide a callback function that is called when the
packet is sent. For now, we just supply a NULL pointer. */
NETSTACK_MAC.send(NULL, NULL);
/* If we are sending multiple packets in a row, we need to let the
watchdog know that we are still alive. */
@ -1295,7 +1294,7 @@ output(uip_lladdr_t *localdest)
* (it is a SHALL in the RFC 4944 and should never happen)
*/
static void
input(const struct mac_driver *r)
input(void)
{
/* size of the IP packet (read from fragment) */
u16_t frag_size = 0;
@ -1306,12 +1305,6 @@ input(const struct mac_driver *r)
u16_t frag_tag = 0;
#endif /*SICSLOWPAN_CONF_FRAG*/
#ifdef SICSLOWPAN_CONF_CONVENTIONAL_MAC
if(r->read() <= 0) {
return;
}
#endif /* SICSLOWPAN_CONF_CONVENTIONAL_MAC */
/* init */
uncomp_hdr_len = 0;
rime_hdr_len = 0;
@ -1477,7 +1470,6 @@ input(const struct mac_driver *r)
#if SICSLOWPAN_CONF_FRAG
}
#endif /* SICSLOWPAN_CONF_FRAG */
return;
}
/** @} */
@ -1485,14 +1477,11 @@ input(const struct mac_driver *r)
/* \brief 6lowpan init function (called by the MAC layer) */
/*--------------------------------------------------------------------*/
void
sicslowpan_init(const struct mac_driver *m)
sicslowpan_init(void)
{
/* remember the mac driver */
sicslowpan_mac = m;
sicslowpan_mac = &NETSTACK_MAC;
/* Set our input function as the receive function of the MAC. */
sicslowpan_mac->set_receive_function(input);
/*
* Set out output function as the function to be called from uIP to
* send a packet.
@ -1529,4 +1518,14 @@ sicslowpan_init(const struct mac_driver *m)
#endif /*SICSLOWPAN_CONF_COMPRESSION == SICSLOWPAN_CONF_COMPRESSION_HC01*/
}
/*--------------------------------------------------------------------*/
const struct mac_driver sicslowpan_driver = {
"Rime",
sicslowpan_init,
NULL,
input,
NULL,
NULL,
NULL,
};
/*--------------------------------------------------------------------*/
/** @} */

8
core/net/sicslowpan.h
View File

@ -33,7 +33,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: sicslowpan.h,v 1.5 2010/01/28 13:50:51 adamdunkels Exp $
* $Id: sicslowpan.h,v 1.6 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
* \file
@ -249,11 +249,7 @@ struct sicslowpan_addr_context {
/** @} */
/**
* \brief 6lowpan init function
* \param m is the MAC layer "driver"
*/
void sicslowpan_init(const struct mac_driver *m);
extern const struct mac_driver sicslowpan_driver;
extern const struct mac_driver *sicslowpan_mac;
#endif /* __SICSLOWPAN_H__ */

49
platform/sky/contiki-conf.h
View File

@ -1,33 +1,42 @@
/* -*- C -*- */
/* @(#)$Id: contiki-conf.h,v 1.71 2010/02/08 22:12:29 adamdunkels Exp $ */
/* @(#)$Id: contiki-conf.h,v 1.72 2010/02/18 21:48:39 adamdunkels Exp $ */
#ifndef CONTIKI_CONF_H
#define CONTIKI_CONF_H
/* Specifies the default MAC driver */
#define MAC_CONF_CSMA 1
#define XMAC_CONF_COMPOWER 1
#define CXMAC_CONF_COMPOWER 1
#if WITH_UIP6
#define MAC_CONF_DRIVER cxmac_driver
#define MAC_CONF_CHANNEL_CHECK_RATE 8
/* Network setup for IPv6 */
#define NETSTACK_CONF_NETWORK sicslowpan_driver
#define NETSTACK_CONF_MAC csma_driver
#define NETSTACK_CONF_RDC contikimac_driver
#define NETSTACK_CONF_RADIO cc2420_driver
#define CC2420_CONF_AUTOACK 1
#define MAC_CONF_CHANNEL_CHECK_RATE 8
#define RIME_CONF_NO_POLITE_ANNOUCEMENTS 0
#define CXMAC_CONF_ANNOUNCEMENTS 0
#define XMAC_CONF_ANNOUNCEMENTS 0
#define CXMAC_CONF_ANNOUNCEMENTS 0
#define XMAC_CONF_ANNOUNCEMENTS 0
#else /* WITH_UIP6 */
#define MAC_CONF_DRIVER xmac_driver
#define MAC_CONF_CHANNEL_CHECK_RATE 4
#define TIMESYNCH_CONF_ENABLED 1
#define CC2420_CONF_TIMESTAMPS 1
#define CC2420_CONF_CHECKSUM 0
#define RIME_CONF_NO_POLITE_ANNOUCEMENTS 1
#define XMAC_CONF_ANNOUNCEMENTS 1
#define CXMAC_CONF_ANNOUNCEMENTS 1
/* Network setup for non-IPv6 (rime). */
#define NETSTACK_CONF_NETWORK rime_driver
#define NETSTACK_CONF_MAC csma_driver
#define NETSTACK_CONF_RDC contikimac_driver
#define NETSTACK_CONF_RADIO cc2420_driver
#define CC2420_CONF_AUTOACK 1
#define MAC_CONF_CHANNEL_CHECK_RATE 8
#define RIME_CONF_NO_POLITE_ANNOUCEMENTS 0
#define CXMAC_CONF_ANNOUNCEMENTS 0
#define XMAC_CONF_ANNOUNCEMENTS 0
#define XMAC_CONF_COMPOWER 1
#define CXMAC_CONF_COMPOWER 1
#endif /* WITH_UIP6 */
#define QUEUEBUF_CONF_NUM 16

71
platform/sky/contiki-sky-main.c
View File

@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)$Id: contiki-sky-main.c,v 1.68 2010/02/06 10:00:49 adamdunkels Exp $
* @(#)$Id: contiki-sky-main.c,v 1.69 2010/02/18 21:48:39 adamdunkels Exp $
*/
#include <signal.h>
@ -48,7 +48,7 @@
#include "dev/watchdog.h"
#include "dev/xmem.h"
#include "lib/random.h"
#include "net/mac/csma.h"
#include "net/netstack.h"
#include "net/mac/frame802154.h"
#include "net/mac/framer-802154.h"
#include "net/mac/framer-nullmac.h"
@ -108,29 +108,6 @@ static uint8_t is_gateway;
#include "experiment-setup.h"
#endif
#if WITH_NULLMAC
#define MAC_DRIVER nullmac_driver
#endif /* WITH_NULLMAC */
#ifndef MAC_DRIVER
#ifdef MAC_CONF_DRIVER
#define MAC_DRIVER MAC_CONF_DRIVER
#else
#define MAC_DRIVER xmac_driver
#endif /* MAC_CONF_DRIVER */
#endif /* MAC_DRIVER */
#ifndef MAC_CSMA
#ifdef MAC_CONF_CSMA
#define MAC_CSMA MAC_CONF_CSMA
#else
#define MAC_CSMA 1
#endif /* MAC_CONF_CSMA */
#endif /* MAC_CSMA */
extern const struct mac_driver MAC_DRIVER;
/*---------------------------------------------------------------------------*/
#if 0
int
@ -264,8 +241,23 @@ main(int argc, char **argv)
ctimer_init();
set_rime_addr();
cc2420_init();
cc2420_set_pan_addr(IEEE802154_PANID, 0 /*XXX*/, ds2411_id);
{
uint8_t longaddr[8];
uint16_t shortaddr;
shortaddr = (rimeaddr_node_addr.u8[0] << 8) +
rimeaddr_node_addr.u8[1];
memset(longaddr, 0, sizeof(longaddr));
rimeaddr_copy((rimeaddr_t *)&longaddr, &rimeaddr_node_addr);
printf("MAC %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
longaddr[0], longaddr[1], longaddr[2], longaddr[3],
longaddr[4], longaddr[5], longaddr[6], longaddr[7]);
cc2420_set_pan_addr(IEEE802154_PANID, shortaddr, longaddr);
}
cc2420_set_channel(RF_CHANNEL);
printf(CONTIKI_VERSION_STRING " started. ");
@ -274,10 +266,10 @@ main(int argc, char **argv)
} else {
printf("Node id is not set.\n");
}
set_rime_addr();
printf("MAC %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
/* printf("MAC %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
ds2411_id[0], ds2411_id[1], ds2411_id[2], ds2411_id[3],
ds2411_id[4], ds2411_id[5], ds2411_id[6], ds2411_id[7]);
ds2411_id[4], ds2411_id[5], ds2411_id[6], ds2411_id[7]);*/
framer_set(&framer_802154);
@ -289,11 +281,10 @@ main(int argc, char **argv)
/* Setup X-MAC for 802.15.4 */
queuebuf_init();
#if MAC_CSMA
sicslowpan_init(csma_init(MAC_DRIVER.init(&cc2420_driver)));
#else /* MAC_CSMA */
sicslowpan_init(MAC_DRIVER.init(&cc2420_driver));
#endif /* MAC_CSMA */
NETSTACK_RDC.init();
NETSTACK_MAC.init();
NETSTACK_NETWORK.init();
printf(" %s, channel check rate %d Hz, radio channel %u\n",
sicslowpan_mac->name,
CLOCK_SECOND / (sicslowpan_mac->channel_check_interval() == 0? 1:
@ -315,7 +306,7 @@ main(int argc, char **argv)
uip_netif_physical_if.addresses[0].ipaddr.u8[15]);
}
if(0) {
if(1) {
uip_ipaddr_t ipaddr;
int i;
uip_ip6addr(&ipaddr, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
@ -335,11 +326,11 @@ main(int argc, char **argv)
uip_router_register(&rimeroute);
#endif /* UIP_CONF_ROUTER */
#else /* WITH_UIP6 */
#if MAC_CSMA
rime_init(csma_init(MAC_DRIVER.init(&cc2420_driver)));
#else /* MAC_CSMA */
rime_init(MAC_DRIVER.init(&cc2420_driver));
#endif /* MAC_CSMA */
NETSTACK_RDC.init();
NETSTACK_MAC.init();
NETSTACK_NETWORK.init();
printf(" %s, channel check rate %d Hz, radio channel %u\n",
rime_mac->name,
CLOCK_SECOND / (rime_mac->channel_check_interval() == 0? 1: