nes-proj/arch/platform/jn516x/platform.c

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/*
* Copyright (c) 2014, SICS Swedish ICT.
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 OS
*
*/
/**
* \file
* Contiki main for NXP JN516X platform
*
* \author
* Beshr Al Nahas <beshr@sics.se>
* Atis Elsts <atis.elsts@sics.se>
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*/
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "dev/watchdog.h"
#include <AppHardwareApi.h>
#include <BbcAndPhyRegs.h>
#include <recal.h>
#include "dev/uart0.h"
#include "dev/uart-driver.h"
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#include "contiki.h"
#include "sys/energest.h"
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#include "net/netstack.h"
#include "dev/serial-line.h"
#include "dev/leds.h"
#include "lib/random.h"
#include "sys/node-id.h"
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#include "sys/platform.h"
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#include "rtimer-arch.h"
#if NETSTACK_CONF_WITH_IPV6
#include "net/ipv6/uip-ds6.h"
#endif /* NETSTACK_CONF_WITH_IPV6 */
#include "dev/micromac-radio.h"
#include "MMAC.h"
/* Includes depending on connected sensor boards */
#if SENSOR_BOARD_DR1175
#include "light-sensor.h"
#include "ht-sensor.h"
SENSORS(&light_sensor, &ht_sensor);
#elif SENSOR_BOARD_DR1199
#include "button-sensor.h"
#include "pot-sensor.h"
SENSORS(&pot_sensor, &button_sensor);
#else
#include "dev/button-sensor.h"
/* #include "dev/pir-sensor.h" */
/* #include "dev/vib-sensor.h" */
/* &pir_sensor, &vib_sensor */
SENSORS(&button_sensor);
#endif
unsigned char node_mac[8];
/* Symbol defined by the linker script
* marks the end of the stack taking into account the used heap */
extern uint32_t heap_location;
#ifdef EXPERIMENT_SETUP
#include "experiment-setup.h"
#endif
/* _EXTRA_LPM is the sleep mode, _LPM is the doze mode */
#define ENERGEST_TYPE_EXTRA_LPM ENERGEST_TYPE_LPM
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extern int main(void);
#if DCOSYNCH_CONF_ENABLED
static unsigned long last_dco_calibration_time;
#endif
static uint64_t sleep_start;
static uint32_t sleep_start_ticks;
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/*---------------------------------------------------------------------------*/
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/* Log configuration */
#include "sys/log.h"
#define LOG_MODULE "JN516x"
#define LOG_LEVEL LOG_LEVEL_MAIN
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/*---------------------------------------------------------------------------*/
/* Reads MAC from SoC
* Must be called before network addresses initialization */
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static void
init_node_mac(void)
{
tuAddr psExtAddress;
vMMAC_GetMacAddress(&psExtAddress.sExt);
node_mac[7] = psExtAddress.sExt.u32L;
node_mac[6] = psExtAddress.sExt.u32L >> (uint32_t)8;
node_mac[5] = psExtAddress.sExt.u32L >> (uint32_t)16;
node_mac[4] = psExtAddress.sExt.u32L >> (uint32_t)24;
node_mac[3] = psExtAddress.sExt.u32H;
node_mac[2] = psExtAddress.sExt.u32H >> (uint32_t)8;
node_mac[1] = psExtAddress.sExt.u32H >> (uint32_t)16;
node_mac[0] = psExtAddress.sExt.u32H >> (uint32_t)24;
}
/*---------------------------------------------------------------------------*/
static void
set_linkaddr(void)
{
linkaddr_t addr;
memset(&addr, 0, LINKADDR_SIZE);
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#if NETSTACK_CONF_WITH_IPV6
memcpy(addr.u8, node_mac, sizeof(addr.u8));
#else
int i;
for(i = 0; i < LINKADDR_SIZE; ++i) {
addr.u8[i] = node_mac[LINKADDR_SIZE - 1 - i];
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}
#endif
linkaddr_set_node_addr(&addr);
}
/*---------------------------------------------------------------------------*/
bool_t
xosc_init(void)
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{
/* The internal 32kHz RC oscillator is used by default;
* Initialize and enable the external 32.768kHz crystal.
*/
vAHI_Init32KhzXtal();
/* Switch to the 32.768kHz crystal.
* This will block and wait up to 1 sec for it to stabilize. */
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return bAHI_Set32KhzClockMode(E_AHI_XTAL);
}
/*---------------------------------------------------------------------------*/
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void
platform_init_stage_one(void)
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{
/* Set stack overflow address for detecting overflow in runtime */
vAHI_SetStackOverflow(TRUE, ((uint32_t *)&heap_location)[0]);
/* Initialize random with a seed from the SoC random generator.
* This must be done before selecting the high-precision external oscillator.
*/
vAHI_StartRandomNumberGenerator(E_AHI_RND_SINGLE_SHOT, E_AHI_INTS_DISABLED);
random_init(u16AHI_ReadRandomNumber());
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clock_init();
rtimer_init();
#if JN516X_EXTERNAL_CRYSTAL_OSCILLATOR
/* initialize the 32kHz crystal and wait for ready */
xosc_init();
/* need to reinitialize because the wait-for-ready process uses system timers */
clock_init();
rtimer_init();
#endif
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leds_init();
leds_on(LEDS_ALL);
init_node_mac();
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}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_two(void)
{
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uart0_init(UART_BAUD_RATE); /* Must come before first PRINTF */
/* check for reset source */
if(bAHI_WatchdogResetEvent()) {
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LOG_INFO("Init: Watchdog timer has reset device!\r\n");
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}
set_linkaddr();
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}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_three(void)
{
#ifndef UIP_FALLBACK_INTERFACE
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uart0_set_input(serial_line_input_byte);
serial_line_init();
#endif /* UIP_FALLBACK_INTERFACE */
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#if TIMESYNCH_CONF_ENABLED
timesynch_init();
timesynch_set_authority_level((linkaddr_node_addr.u8[0] << 4) + 16);
#endif /* TIMESYNCH_CONF_ENABLED */
/* need this to reliably generate the first rtimer callback and callbacks in other
auto-start processes */
(void)u32AHI_Init();
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leds_off(LEDS_ALL);
}
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/*---------------------------------------------------------------------------*/
void
platform_idle()
{
clock_time_t time_to_etimer;
rtimer_clock_t ticks_to_rtimer;
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#if DCOSYNCH_CONF_ENABLED
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/* Calibrate the DCO every DCOSYNCH_PERIOD
* if we have more than 500uSec until next rtimer
* PS: Calibration disables interrupts and blocks for 200uSec.
* */
if(clock_seconds() - last_dco_calibration_time > DCOSYNCH_PERIOD) {
if(rtimer_arch_time_to_rtimer() > RTIMER_SECOND / 2000) {
/* PRINTF("ContikiMain: Calibrating the DCO\n"); */
eAHI_AttemptCalibration();
/* Patch to allow CpuDoze after calibration */
vREG_PhyWrite(REG_PHY_IS, REG_PHY_INT_VCO_CAL_MASK);
last_dco_calibration_time = clock_seconds();
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}
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}
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#endif /* DCOSYNCH_CONF_ENABLED */
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/* flush standard output before sleeping */
uart_driver_flush(E_AHI_UART_0, TRUE, FALSE);
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/* calculate the time to the next etimer and rtimer */
time_to_etimer = clock_arch_time_to_etimer();
ticks_to_rtimer = rtimer_arch_time_to_rtimer();
#if JN516X_SLEEP_ENABLED
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/* we can sleep only up to the next rtimer/etimer */
rtimer_clock_t max_sleep_time = ticks_to_rtimer;
if(max_sleep_time >= JN516X_MIN_SLEEP_TIME) {
/* also take into account etimers */
uint64_t ticks_to_etimer = ((uint64_t)time_to_etimer * RTIMER_SECOND) / CLOCK_SECOND;
max_sleep_time = MIN(ticks_to_etimer, ticks_to_rtimer);
}
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if(max_sleep_time >= JN516X_MIN_SLEEP_TIME) {
max_sleep_time -= JN516X_SLEEP_GUARD_TIME;
/* bound the sleep time to 1 second */
max_sleep_time = MIN(max_sleep_time, JN516X_MAX_SLEEP_TIME);
#if !RTIMER_USE_32KHZ
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/* convert to 32.768 kHz oscillator ticks */
max_sleep_time = (uint64_t)max_sleep_time * JN516X_XOSC_SECOND / RTIMER_SECOND;
#endif
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vAHI_WakeTimerEnable(WAKEUP_TIMER, TRUE);
/* sync with the tick timer */
WAIT_FOR_EDGE(sleep_start);
sleep_start_ticks = u32AHI_TickTimerRead();
vAHI_WakeTimerStartLarge(WAKEUP_TIMER, max_sleep_time);
ENERGEST_SWITCH(ENERGEST_TYPE_CPU, ENERGEST_TYPE_EXTRA_LPM);
vAHI_Sleep(E_AHI_SLEEP_OSCON_RAMON);
} else {
#else
{
#endif /* JN516X_SLEEP_ENABLED */
clock_arch_schedule_interrupt(time_to_etimer, ticks_to_rtimer);
ENERGEST_SWITCH(ENERGEST_TYPE_CPU, ENERGEST_TYPE_LPM);
vAHI_CpuDoze();
watchdog_start();
ENERGEST_SWITCH(ENERGEST_TYPE_LPM, ENERGEST_TYPE_CPU);
}
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}
/*---------------------------------------------------------------------------*/
void
platform_main_loop(void)
{
int r;
while(1) {
do {
/* Reset watchdog. */
watchdog_periodic();
r = process_run();
} while(r > 0);
/*
* Idle processing.
*/
platform_idle();
}
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}
/*---------------------------------------------------------------------------*/
void
AppColdStart(void)
{
/* After reset or sleep with memory off */
main();
}
/*---------------------------------------------------------------------------*/
void
AppWarmStart(void)
{
/* Wakeup after sleep with memory on.
* Need to initialize devices but not the application state.
* Note: the actual time this function is called is
* ~8 ticks (32kHz timer) later than the scheduled sleep end time.
*/
uint32_t sleep_ticks;
uint64_t sleep_end;
rtimer_clock_t sleep_ticks_rtimer;
clock_arch_calibrate();
leds_init();
uart0_init(UART_BAUD_RATE); /* Must come before first PRINTF */
NETSTACK_RADIO.init();
watchdog_init();
watchdog_stop();
WAIT_FOR_EDGE(sleep_end);
sleep_ticks = (uint32_t)(sleep_start - sleep_end) + 1;
#if RTIMER_USE_32KHZ
sleep_ticks_rtimer = sleep_ticks;
#else
{
static uint32_t remainder;
uint64_t t = (uint64_t)sleep_ticks * RTIMER_SECOND + remainder;
sleep_ticks_rtimer = (uint32_t)(t / JN516X_XOSC_SECOND);
remainder = t - sleep_ticks_rtimer * JN516X_XOSC_SECOND;
}
#endif
/* reinitialize rtimers */
rtimer_arch_reinit(sleep_start_ticks, sleep_ticks_rtimer);
ENERGEST_SWITCH(ENERGEST_TYPE_EXTRA_LPM, ENERGEST_TYPE_CPU);
watchdog_start();
/* reinitialize clock */
clock_arch_init(1);
/* schedule etimer interrupt */
clock_arch_schedule_interrupt(clock_arch_time_to_etimer(), rtimer_arch_time_to_rtimer());
#if DCOSYNCH_CONF_ENABLED
/* The radio is recalibrated on wakeup */
last_dco_calibration_time = clock_seconds();
#endif
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platform_main_loop();
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}
/*---------------------------------------------------------------------------*/