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kernel/arch_real_time_clock: implement for riscv64

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Change-Id: I3a50b3343e00ef45ef9391d463939abba9e666a0
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4072
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
This commit is contained in:
X512 2021-06-06 21:10:47 +09:00 committed by Alex von Gluck IV
parent 95d6ecf25d
commit 9d2cc33a64
1 changed files with 20 additions and 2 deletions
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22
src/system/kernel/arch/riscv64/arch_real_time_clock.cpp
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@ -1,12 +1,29 @@
/*
* Copyright 2021 Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include <arch/real_time_clock.h>
#include <boot/kernel_args.h>
#include <real_time_clock.h>
#include <real_time_data.h>
#include <Htif.h>
status_t
arch_rtc_init(kernel_args *args, struct real_time_data *data)
{
/*
data->arch_data.system_time_conversion_factor
= (1LL << 32) * 1000000LL / args->arch_args.timerFrequrency;
dprintf("timerFrequrency: %" B_PRIu64 "\n",
args->arch_args.timerFrequrency);
dprintf("system_time_conversion_factor: %" B_PRIu64 "\n",
data->arch_data.system_time_conversion_factor);
*/
return B_OK;
}
@ -14,7 +31,7 @@ arch_rtc_init(kernel_args *args, struct real_time_data *data)
uint32
arch_rtc_get_hw_time(void)
{
return 0;
return (uint32)(HtifCmd(2, 0, 0) / 1000000);
}
@ -27,11 +44,12 @@ arch_rtc_set_hw_time(uint32 seconds)
void
arch_rtc_set_system_time_offset(struct real_time_data *data, bigtime_t offset)
{
atomic_set64(&data->arch_data.system_time_offset, offset);
}
bigtime_t
arch_rtc_get_system_time_offset(struct real_time_data *data)
{
return 0;
return atomic_get64(&data->arch_data.system_time_offset);
}