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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <chrono>
#include "common/settings.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/kernel/svc.h"
#include "core/hle/service/glue/time/standard_steady_clock_resource.h"
#include "core/hle/service/psc/time/errors.h"
namespace Service::Glue::Time {
namespace {
[[maybe_unused]] constexpr u32 Max77620PmicSession = 0x3A000001;
[[maybe_unused]] constexpr u32 Max77620RtcSession = 0x3B000001;
Result GetTimeInSeconds(Core::System& system, s64& out_time_s) {
out_time_s = std::chrono::duration_cast<std::chrono::seconds>(
std::chrono::system_clock::now().time_since_epoch())
.count();
if (Settings::values.custom_rtc_enabled) {
out_time_s += Settings::values.custom_rtc_offset.GetValue();
}
R_SUCCEED();
}
} // namespace
StandardSteadyClockResource::StandardSteadyClockResource(Core::System& system) : m_system{system} {}
void StandardSteadyClockResource::Initialize(Common::UUID* out_source_id,
Common::UUID* external_source_id) {
constexpr size_t NUM_TRIES{20};
size_t i{0};
Result res{ResultSuccess};
for (; i < NUM_TRIES; i++) {
res = SetCurrentTime();
if (res == ResultSuccess) {
break;
}
Kernel::Svc::SleepThread(m_system, std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::milliseconds(1))
.count());
}
if (i < NUM_TRIES) {
m_set_time_result = ResultSuccess;
if (*external_source_id != Service::PSC::Time::ClockSourceId{}) {
m_clock_source_id = *external_source_id;
} else {
m_clock_source_id = Common::UUID::MakeRandom();
}
} else {
m_set_time_result = res;
auto ticks{m_system.CoreTiming().GetClockTicks()};
m_time = -Service::PSC::Time::ConvertToTimeSpan(ticks).count();
m_clock_source_id = Common::UUID::MakeRandom();
}
if (out_source_id) {
*out_source_id = m_clock_source_id;
}
}
bool StandardSteadyClockResource::GetResetDetected() {
// TODO:
// call Rtc::GetRtcResetDetected(Max77620RtcSession)
// if detected:
// SetSys::SetExternalSteadyClockSourceId(invalid_id)
// Rtc::ClearRtcResetDetected(Max77620RtcSession)
// set m_rtc_reset to result
// Instead, only set reset to true if we're booting for the first time.
m_rtc_reset = false;
return m_rtc_reset;
}
Result StandardSteadyClockResource::SetCurrentTime() {
auto start_tick{m_system.CoreTiming().GetClockTicks()};
s64 rtc_time_s{};
// TODO R_TRY(Rtc::GetTimeInSeconds(rtc_time_s, Max77620RtcSession))
R_TRY(GetTimeInSeconds(m_system, rtc_time_s));
auto end_tick{m_system.CoreTiming().GetClockTicks()};
auto diff{Service::PSC::Time::ConvertToTimeSpan(end_tick - start_tick)};
// Why is this here?
R_UNLESS(diff < std::chrono::milliseconds(101), Service::PSC::Time::ResultRtcTimeout);
auto one_second_ns{
std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
s64 boot_time{rtc_time_s * one_second_ns -
Service::PSC::Time::ConvertToTimeSpan(end_tick).count()};
std::scoped_lock l{m_mutex};
m_time = boot_time;
R_SUCCEED();
}
Result StandardSteadyClockResource::GetRtcTimeInSeconds(s64& out_time) {
// TODO
// R_TRY(Rtc::GetTimeInSeconds(time_s, Max77620RtcSession)
R_RETURN(GetTimeInSeconds(m_system, out_time));
}
void StandardSteadyClockResource::UpdateTime() {
constexpr size_t NUM_TRIES{3};
size_t i{0};
Result res{ResultSuccess};
for (; i < NUM_TRIES; i++) {
res = SetCurrentTime();
if (res == ResultSuccess) {
break;
}
Kernel::Svc::SleepThread(m_system, std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::milliseconds(1))
.count());
}
}
} // namespace Service::Glue::Time
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