/* 
 * Copyright 2006, Ingo Weinhold <bonefish@cs.tu-berlin.de>.
 * Distributed under the terms of the MIT License.
 */

#include <OS.h>

#include <arch_cpu.h>
#include <libroot_private.h>
#include <real_time_data.h>


static struct arch_real_time_data *sRealTimeData;

void
__arch_init_time(struct real_time_data *data, bool setDefaults)
{
        sRealTimeData = &data->arch_data;

        if (setDefaults) {
                sRealTimeData->data[0].system_time_offset = 0;
                sRealTimeData->system_time_conversion_factor = 1000000000LL;
                sRealTimeData->version = 0;
        }

        __ppc_setup_system_time(&sRealTimeData->system_time_conversion_factor);
}


bigtime_t
__arch_get_system_time_offset(struct real_time_data *data)
{
        int32 version;
        bigtime_t offset;
        do {
                version = sRealTimeData->version;
                offset = sRealTimeData->data[version % 2].system_time_offset;
        } while (version != sRealTimeData->version);

        return offset;
}