366 lines
11 KiB
C
366 lines
11 KiB
C
/*
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* Copyright (c) 2014, SICS Swedish ICT.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki OS
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*
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*/
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/**
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* \file
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* Contiki main for NXP JN516X platform
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*
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* \author
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* Beshr Al Nahas <beshr@sics.se>
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* Atis Elsts <atis.elsts@sics.se>
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "dev/watchdog.h"
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#include <AppHardwareApi.h>
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#include <BbcAndPhyRegs.h>
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#include <recal.h>
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#include "dev/uart0.h"
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#include "dev/uart-driver.h"
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#include "contiki.h"
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#include "sys/energest.h"
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#include "net/netstack.h"
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#include "dev/serial-line.h"
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#include "dev/leds.h"
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#include "lib/random.h"
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#include "sys/node-id.h"
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#include "sys/platform.h"
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#include "rtimer-arch.h"
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#if NETSTACK_CONF_WITH_IPV6
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#include "net/ipv6/uip-ds6.h"
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#endif /* NETSTACK_CONF_WITH_IPV6 */
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#include "dev/micromac-radio.h"
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#include "MMAC.h"
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/* Includes depending on connected sensor boards */
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#if SENSOR_BOARD_DR1175
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#include "light-sensor.h"
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#include "ht-sensor.h"
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SENSORS(&light_sensor, &ht_sensor);
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#elif SENSOR_BOARD_DR1199
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#include "button-sensor.h"
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#include "pot-sensor.h"
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SENSORS(&pot_sensor, &button_sensor);
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#else
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#include "dev/button-sensor.h"
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/* #include "dev/pir-sensor.h" */
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/* #include "dev/vib-sensor.h" */
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/* &pir_sensor, &vib_sensor */
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SENSORS(&button_sensor);
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#endif
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unsigned char node_mac[8];
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/* Symbol defined by the linker script
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* marks the end of the stack taking into account the used heap */
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extern uint32_t heap_location;
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#ifdef EXPERIMENT_SETUP
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#include "experiment-setup.h"
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#endif
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/* _EXTRA_LPM is the sleep mode, _LPM is the doze mode */
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#define ENERGEST_TYPE_EXTRA_LPM ENERGEST_TYPE_LPM
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extern int main(void);
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#if DCOSYNCH_CONF_ENABLED
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static unsigned long last_dco_calibration_time;
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#endif
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static uint64_t sleep_start;
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static uint32_t sleep_start_ticks;
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/*---------------------------------------------------------------------------*/
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/* Log configuration */
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#include "sys/log.h"
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#define LOG_MODULE "JN516x"
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#define LOG_LEVEL LOG_LEVEL_MAIN
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/*---------------------------------------------------------------------------*/
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/* Reads MAC from SoC
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* Must be called before network addresses initialization */
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static void
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init_node_mac(void)
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{
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tuAddr psExtAddress;
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vMMAC_GetMacAddress(&psExtAddress.sExt);
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node_mac[7] = psExtAddress.sExt.u32L;
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node_mac[6] = psExtAddress.sExt.u32L >> (uint32_t)8;
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node_mac[5] = psExtAddress.sExt.u32L >> (uint32_t)16;
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node_mac[4] = psExtAddress.sExt.u32L >> (uint32_t)24;
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node_mac[3] = psExtAddress.sExt.u32H;
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node_mac[2] = psExtAddress.sExt.u32H >> (uint32_t)8;
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node_mac[1] = psExtAddress.sExt.u32H >> (uint32_t)16;
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node_mac[0] = psExtAddress.sExt.u32H >> (uint32_t)24;
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}
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/*---------------------------------------------------------------------------*/
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static void
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set_linkaddr(void)
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{
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linkaddr_t addr;
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memset(&addr, 0, LINKADDR_SIZE);
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#if NETSTACK_CONF_WITH_IPV6
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memcpy(addr.u8, node_mac, sizeof(addr.u8));
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#else
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int i;
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for(i = 0; i < LINKADDR_SIZE; ++i) {
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addr.u8[i] = node_mac[LINKADDR_SIZE - 1 - i];
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}
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#endif
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linkaddr_set_node_addr(&addr);
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}
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/*---------------------------------------------------------------------------*/
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bool_t
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xosc_init(void)
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{
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/* The internal 32kHz RC oscillator is used by default;
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* Initialize and enable the external 32.768kHz crystal.
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*/
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vAHI_Init32KhzXtal();
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/* Switch to the 32.768kHz crystal.
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* 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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}
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/*---------------------------------------------------------------------------*/
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void
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platform_init_stage_one(void)
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{
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/* Set stack overflow address for detecting overflow in runtime */
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vAHI_SetStackOverflow(TRUE, ((uint32_t *)&heap_location)[0]);
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/* Initialize random with a seed from the SoC random generator.
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* This must be done before selecting the high-precision external oscillator.
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*/
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vAHI_StartRandomNumberGenerator(E_AHI_RND_SINGLE_SHOT, E_AHI_INTS_DISABLED);
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random_init(u16AHI_ReadRandomNumber());
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clock_init();
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rtimer_init();
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#if JN516X_EXTERNAL_CRYSTAL_OSCILLATOR
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/* initialize the 32kHz crystal and wait for ready */
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xosc_init();
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/* need to reinitialize because the wait-for-ready process uses system timers */
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clock_init();
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rtimer_init();
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#endif
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leds_init();
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leds_on(LEDS_ALL);
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init_node_mac();
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_init_stage_two(void)
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{
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uart0_init(UART_BAUD_RATE); /* Must come before first PRINTF */
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/* check for reset source */
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if(bAHI_WatchdogResetEvent()) {
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LOG_INFO("Init: Watchdog timer has reset device!\r\n");
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}
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set_linkaddr();
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_init_stage_three(void)
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{
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#ifndef UIP_FALLBACK_INTERFACE
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uart0_set_input(serial_line_input_byte);
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serial_line_init();
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#endif /* UIP_FALLBACK_INTERFACE */
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#if TIMESYNCH_CONF_ENABLED
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timesynch_init();
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timesynch_set_authority_level((linkaddr_node_addr.u8[0] << 4) + 16);
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#endif /* TIMESYNCH_CONF_ENABLED */
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/* need this to reliably generate the first rtimer callback and callbacks in other
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auto-start processes */
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(void)u32AHI_Init();
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leds_off(LEDS_ALL);
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_idle()
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{
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clock_time_t time_to_etimer;
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rtimer_clock_t ticks_to_rtimer;
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#if DCOSYNCH_CONF_ENABLED
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/* Calibrate the DCO every DCOSYNCH_PERIOD
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* if we have more than 500uSec until next rtimer
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* PS: Calibration disables interrupts and blocks for 200uSec.
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* */
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if(clock_seconds() - last_dco_calibration_time > DCOSYNCH_PERIOD) {
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if(rtimer_arch_time_to_rtimer() > RTIMER_SECOND / 2000) {
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/* PRINTF("ContikiMain: Calibrating the DCO\n"); */
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eAHI_AttemptCalibration();
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/* Patch to allow CpuDoze after calibration */
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vREG_PhyWrite(REG_PHY_IS, REG_PHY_INT_VCO_CAL_MASK);
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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 */
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uart_driver_flush(E_AHI_UART_0, TRUE, FALSE);
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/* calculate the time to the next etimer and rtimer */
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time_to_etimer = clock_arch_time_to_etimer();
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ticks_to_rtimer = rtimer_arch_time_to_rtimer();
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#if JN516X_SLEEP_ENABLED
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/* we can sleep only up to the next rtimer/etimer */
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rtimer_clock_t max_sleep_time = ticks_to_rtimer;
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if(max_sleep_time >= JN516X_MIN_SLEEP_TIME) {
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/* also take into account etimers */
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uint64_t ticks_to_etimer = ((uint64_t)time_to_etimer * RTIMER_SECOND) / CLOCK_SECOND;
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max_sleep_time = MIN(ticks_to_etimer, ticks_to_rtimer);
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}
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if(max_sleep_time >= JN516X_MIN_SLEEP_TIME) {
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max_sleep_time -= JN516X_SLEEP_GUARD_TIME;
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/* bound the sleep time to 1 second */
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max_sleep_time = MIN(max_sleep_time, JN516X_MAX_SLEEP_TIME);
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#if !RTIMER_USE_32KHZ
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/* convert to 32.768 kHz oscillator ticks */
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max_sleep_time = (uint64_t)max_sleep_time * JN516X_XOSC_SECOND / RTIMER_SECOND;
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#endif
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vAHI_WakeTimerEnable(WAKEUP_TIMER, TRUE);
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/* sync with the tick timer */
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WAIT_FOR_EDGE(sleep_start);
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sleep_start_ticks = u32AHI_TickTimerRead();
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vAHI_WakeTimerStartLarge(WAKEUP_TIMER, max_sleep_time);
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ENERGEST_SWITCH(ENERGEST_TYPE_CPU, ENERGEST_TYPE_EXTRA_LPM);
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vAHI_Sleep(E_AHI_SLEEP_OSCON_RAMON);
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} else {
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#else
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{
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#endif /* JN516X_SLEEP_ENABLED */
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clock_arch_schedule_interrupt(time_to_etimer, ticks_to_rtimer);
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ENERGEST_SWITCH(ENERGEST_TYPE_CPU, ENERGEST_TYPE_LPM);
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vAHI_CpuDoze();
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watchdog_start();
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ENERGEST_SWITCH(ENERGEST_TYPE_LPM, ENERGEST_TYPE_CPU);
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_main_loop(void)
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{
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int r;
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while(1) {
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do {
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/* Reset watchdog. */
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watchdog_periodic();
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r = process_run();
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} while(r > 0);
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/*
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* Idle processing.
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*/
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platform_idle();
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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AppColdStart(void)
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{
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/* After reset or sleep with memory off */
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main();
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}
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/*---------------------------------------------------------------------------*/
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void
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AppWarmStart(void)
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{
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/* Wakeup after sleep with memory on.
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* Need to initialize devices but not the application state.
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* Note: the actual time this function is called is
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* ~8 ticks (32kHz timer) later than the scheduled sleep end time.
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*/
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uint32_t sleep_ticks;
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uint64_t sleep_end;
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rtimer_clock_t sleep_ticks_rtimer;
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clock_arch_calibrate();
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leds_init();
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uart0_init(UART_BAUD_RATE); /* Must come before first PRINTF */
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NETSTACK_RADIO.init();
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watchdog_init();
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watchdog_stop();
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WAIT_FOR_EDGE(sleep_end);
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sleep_ticks = (uint32_t)(sleep_start - sleep_end) + 1;
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#if RTIMER_USE_32KHZ
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sleep_ticks_rtimer = sleep_ticks;
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#else
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{
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static uint32_t remainder;
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uint64_t t = (uint64_t)sleep_ticks * RTIMER_SECOND + remainder;
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sleep_ticks_rtimer = (uint32_t)(t / JN516X_XOSC_SECOND);
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remainder = t - sleep_ticks_rtimer * JN516X_XOSC_SECOND;
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}
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#endif
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/* reinitialize rtimers */
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rtimer_arch_reinit(sleep_start_ticks, sleep_ticks_rtimer);
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ENERGEST_SWITCH(ENERGEST_TYPE_EXTRA_LPM, ENERGEST_TYPE_CPU);
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watchdog_start();
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/* reinitialize clock */
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clock_arch_init(1);
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/* schedule etimer interrupt */
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clock_arch_schedule_interrupt(clock_arch_time_to_etimer(), rtimer_arch_time_to_rtimer());
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#if DCOSYNCH_CONF_ENABLED
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/* The radio is recalibrated on wakeup */
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last_dco_calibration_time = clock_seconds();
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#endif
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platform_main_loop();
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}
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/*---------------------------------------------------------------------------*/
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