9d3b9cadc4
Currently, it is common to see Contiki's core/ interfaces implementations spread in both cpu/ and platform/. We here take one step further starting an effort to centralize all of these in platform's code instead. This commit starts this by adding platform/galileo/core/ and its sys/ subfolder, adding a stubbed mtarch.h and moving clock and rtimer implementations to this new folder. From now on we should concentrate implementation from Contiki's core/ interfaces into the appropriate subfolder in platform/galileo/core/. Note that this is not the current fashion followed on other platforms and cpus folders, as most of them add the core interface implementation into its subfolder directly. For instance, on CC2538DK, core/dev/button-sensor.h is implemented in platform/cc2538dk/dev/ directly, while on Galileo it would sit at platform/galileo/core/dev/. We believe ours is a better approach to organize and escalate a platform's code base. We also remove previous x86 mtarch.h and mtarch.c since they weren't used at all - both native and cooja platforms have their own mtarch implementations.
120 lines
3.7 KiB
C
120 lines
3.7 KiB
C
/*
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* Copyright (C) 2015, Intel Corporation. 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 copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sys/clock.h"
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#include "sys/etimer.h"
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#include "contiki-conf.h"
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#include "drivers/rtc.h"
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#if CLOCK_CONF_SECOND == 2
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#define FREQ RTC_2_HZ
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#elif CLOCK_CONF_SECOND == 4
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#define FREQ RTC_4_HZ
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#elif CLOCK_CONF_SECOND == 8
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#define FREQ RTC_8_HZ
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#elif CLOCK_CONF_SECOND == 16
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#define FREQ RTC_16_HZ
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#elif CLOCK_CONF_SECOND == 32
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#define FREQ RTC_32_HZ
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#elif CLOCK_CONF_SECOND == 64
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#define FREQ RTC_64_HZ
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#elif CLOCK_CONF_SECOND == 128
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#define FREQ RTC_128_HZ
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#elif CLOCK_CONF_SECOND == 256
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#define FREQ RTC_256_HZ
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#elif CLOCK_CONF_SECOND == 512
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#define FREQ RTC_512_HZ
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#elif CLOCK_CONF_SECOND == 1024
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#define FREQ RTC_1024_HZ
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#elif CLOCK_CONF_SECOND == 2048
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#define FREQ RTC_2048_HZ
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#elif CLOCK_CONF_SECOND == 4096
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#define FREQ RTC_4096_HZ
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#elif CLOCK_CONF_SECOND == 8192
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#define FREQ RTC_8192_HZ
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#else
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#define FREQ -1
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#error "RTC is being used thus CLOCK_CONF_SECOND has to be a value defined by rtc_frequency_t."
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#endif
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static volatile clock_time_t tick_count = 0;
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static void
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update_ticks(void)
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{
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clock_time_t expire = etimer_next_expiration_time();
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tick_count++;
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/* Notify etimer library if the next event timer has expired */
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if(expire != 0 && tick_count >= expire) {
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etimer_request_poll();
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_init(void)
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{
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rtc_init(FREQ, update_ticks);
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}
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/*---------------------------------------------------------------------------*/
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clock_time_t
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clock_time(void)
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{
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return tick_count;
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}
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/*---------------------------------------------------------------------------*/
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unsigned long
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clock_seconds(void)
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{
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return tick_count / CLOCK_CONF_SECOND;
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_wait(clock_time_t t)
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{
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clock_time_t initial = tick_count;
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while(tick_count < t + initial);
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_set_seconds(unsigned long sec)
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{
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/* Stubbed function */
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_delay_usec(uint16_t t)
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{
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/* Stubbed function */
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}
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