nes-proj/arch/platform/sky/platform.c
2018-05-25 12:49:35 -07:00

239 lines
6.6 KiB
C

/*
* Copyright (c) 2006, 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.
*
*/
#include <stdio.h>
#include <string.h>
#include "contiki.h"
#include "sys/energest.h"
#include "cc2420.h"
#include "dev/ds2411/ds2411.h"
#include "dev/leds.h"
#include "dev/serial-line.h"
#include "dev/slip.h"
#include "dev/uart1.h"
#include "dev/watchdog.h"
#include "dev/xmem.h"
#include "lib/random.h"
#include "net/netstack.h"
#include "net/mac/framer/frame802154.h"
#if NETSTACK_CONF_WITH_IPV6
#include "net/ipv6/uip-ds6.h"
#endif /* NETSTACK_CONF_WITH_IPV6 */
#include "sys/node-id.h"
#include "cfs-coffee-arch.h"
#include "cfs/cfs-coffee.h"
#if DCOSYNCH_CONF_ENABLED
static struct timer mgt_timer;
#endif
extern int msp430_dco_required;
#define UIP_OVER_MESH_CHANNEL 8
#ifdef EXPERIMENT_SETUP
#include "experiment-setup.h"
#endif
void init_platform(void);
/*---------------------------------------------------------------------------*/
/* Log configuration */
#include "sys/log.h"
#define LOG_MODULE "Sky"
#define LOG_LEVEL LOG_LEVEL_MAIN
/*---------------------------------------------------------------------------*/
#if 0
int
force_float_inclusion()
{
extern int __fixsfsi;
extern int __floatsisf;
extern int __mulsf3;
extern int __subsf3;
return __fixsfsi + __floatsisf + __mulsf3 + __subsf3;
}
#endif
/*---------------------------------------------------------------------------*/
void uip_log(char *msg) { puts(msg); }
/*---------------------------------------------------------------------------*/
#if 0
void
force_inclusion(int d1, int d2)
{
snprintf(NULL, 0, "%d", d1 % d2);
}
#endif
/*---------------------------------------------------------------------------*/
static void
set_lladdr(void)
{
linkaddr_t addr;
memset(&addr, 0, sizeof(linkaddr_t));
#if NETSTACK_CONF_WITH_IPV6
memcpy(addr.u8, ds2411_id, sizeof(addr.u8));
#else
int i;
for(i = 0; i < sizeof(linkaddr_t); ++i) {
addr.u8[i] = ds2411_id[7 - i];
}
#endif
linkaddr_set_node_addr(&addr);
}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_one(void)
{
/*
* Initalize hardware.
*/
msp430_cpu_init();
leds_init();
leds_on(LEDS_RED);
}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_two(void)
{
uart1_init(BAUD2UBR(115200)); /* Must come before first printf */
leds_on(LEDS_GREEN);
ds2411_init();
/* XXX hack: Fix it so that the 802.15.4 MAC address is compatible
with an Ethernet MAC address - byte 0 (byte 2 in the DS ID)
cannot be odd. */
ds2411_id[2] &= 0xfe;
leds_on(LEDS_BLUE);
xmem_init();
leds_off(LEDS_RED);
/*
* Hardware initialization done!
*/
random_init(ds2411_id[0]);
leds_off(LEDS_BLUE);
set_lladdr();
/*
* main() will turn the radio on inside netstack_init(). The CC2420
* must already be initialised by that time, so we do this here early.
* Later on in stage three we set correct values for PANID and radio
* short/long address.
*/
cc2420_init();
}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_three(void)
{
uint8_t longaddr[8];
uint16_t shortaddr;
init_platform();
shortaddr = (linkaddr_node_addr.u8[0] << 8) + linkaddr_node_addr.u8[1];
memset(longaddr, 0, sizeof(longaddr));
linkaddr_copy((linkaddr_t *)&longaddr, &linkaddr_node_addr);
cc2420_set_pan_addr(IEEE802154_PANID, shortaddr, longaddr);
LOG_INFO("CC2420 CCA threshold %i\n", CC2420_CONF_CCA_THRESH);
#if !NETSTACK_CONF_WITH_IPV6
uart1_set_input(serial_line_input_byte);
serial_line_init();
#endif
leds_off(LEDS_GREEN);
#if TIMESYNCH_CONF_ENABLED
timesynch_init();
timesynch_set_authority_level((linkaddr_node_addr.u8[0] << 4) + 16);
#endif /* TIMESYNCH_CONF_ENABLED */
/*
* This is the scheduler loop.
*/
#if DCOSYNCH_CONF_ENABLED
timer_set(&mgt_timer, DCOSYNCH_PERIOD * CLOCK_SECOND);
#endif
}
/*---------------------------------------------------------------------------*/
void
platform_idle(void)
{
/*
* Idle processing.
*/
int s = splhigh(); /* Disable interrupts. */
/* uart1_active is for avoiding LPM3 when still sending or receiving */
if(process_nevents() != 0 || uart1_active()) {
splx(s); /* Re-enable interrupts. */
} else {
#if DCOSYNCH_CONF_ENABLED
/* before going down to sleep possibly do some management */
if(timer_expired(&mgt_timer)) {
watchdog_periodic();
timer_reset(&mgt_timer);
msp430_sync_dco();
#if CC2420_CONF_SFD_TIMESTAMPS
cc2420_arch_sfd_init();
#endif /* CC2420_CONF_SFD_TIMESTAMPS */
}
#endif
/* Re-enable interrupts and go to sleep atomically. */
ENERGEST_SWITCH(ENERGEST_TYPE_CPU, ENERGEST_TYPE_LPM);
watchdog_stop();
/* check if the DCO needs to be on - if so - only LPM 1 */
if (msp430_dco_required) {
_BIS_SR(GIE | CPUOFF); /* LPM1 sleep for DMA to work!. */
} else {
_BIS_SR(GIE | SCG0 | SCG1 | CPUOFF); /* LPM3 sleep. This
statement will block
until the CPU is
woken up by an
interrupt that sets
the wake up flag. */
}
watchdog_start();
ENERGEST_SWITCH(ENERGEST_TYPE_LPM, ENERGEST_TYPE_CPU);
}
}