/* * 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. 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. * */ /** * \file * Header file for NXP jn516x-specific rtimer code * \author * Beshr Al Nahas * Atis Elsts */ #ifndef RTIMER_ARCH_H_ #define RTIMER_ARCH_H_ #include "sys/rtimer.h" #ifdef RTIMER_CONF_SECOND # define RTIMER_ARCH_SECOND RTIMER_CONF_SECOND #else #if RTIMER_USE_32KHZ # if JN516X_EXTERNAL_CRYSTAL_OSCILLATOR # define RTIMER_ARCH_SECOND 32768 # else # define RTIMER_ARCH_SECOND 32000 #endif #else /* 32MHz CPU clock => 16MHz timer */ # define RTIMER_ARCH_SECOND (F_CPU / 2) #endif #endif #if RTIMER_USE_32KHZ #define US_TO_RTIMERTICKS(US) ((US) >= 0 ? \ (((int32_t)(US) * (RTIMER_ARCH_SECOND) + 500000) / 1000000L) : \ ((int32_t)(US) * (RTIMER_ARCH_SECOND) - 500000) / 1000000L) #define RTIMERTICKS_TO_US(T) ((T) >= 0 ? \ (((int32_t)(T) * 1000000L + ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND)) : \ ((int32_t)(T) * 1000000L - ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND)) /* A 64-bit version because the 32-bit one cannot handle T >= 4295 ticks. Intended only for positive values of T. */ #define RTIMERTICKS_TO_US_64(T) ((uint32_t)(((uint64_t)(T) * 1000000 + ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND))) #else #define US_TO_RTIMERTICKS(D) ((int64_t)(D) << 4) #define RTIMERTICKS_TO_US(T) ((int64_t)(T) >> 4) #define RTIMERTICKS_TO_US_64(T) RTIMERTICKS_TO_US(T) #endif rtimer_clock_t rtimer_arch_now(void); rtimer_clock_t rtimer_arch_time_to_rtimer(void); void rtimer_arch_reinit(rtimer_clock_t sleep_start, rtimer_clock_t wakeup_time); void clock_arch_init(int is_reinitialization); void clock_arch_calibrate(void); void clock_arch_reinit(void); void clock_arch_schedule_interrupt(clock_time_t time_to_etimer, rtimer_clock_t ticks_to_rtimer); clock_t clock_arch_time_to_etimer(void); /* Use 20 ms: enough for TSCH with the default schedule to sleep */ #define JN516X_MIN_SLEEP_TIME (RTIMER_SECOND / 50) /* 1 second by default: arbitrary picked value which could be increased */ #define JN516X_MAX_SLEEP_TIME RTIMER_SECOND /* Assume conservative 10 ms maximal system wakeup time */ #define JN516X_SLEEP_GUARD_TIME (RTIMER_ARCH_SECOND / 100) #define WAKEUP_TIMER E_AHI_WAKE_TIMER_0 #define WAKEUP_TIMER_MASK E_AHI_SYSCTRL_WK0_MASK #define TICK_TIMER E_AHI_WAKE_TIMER_1 #define TICK_TIMER_MASK E_AHI_SYSCTRL_WK1_MASK #define WAIT_FOR_EDGE(edge_t) do { \ uint64_t start_t = u64AHI_WakeTimerReadLarge(TICK_TIMER); \ do { \ edge_t = u64AHI_WakeTimerReadLarge(TICK_TIMER); \ } while(edge_t == start_t); \ } while(0) #endif /* RTIMER_ARCH_H_ */