citra/src/core/hle/shared_page.cpp

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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
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#include <chrono>
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#include <cstring>
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#include "core/core_timing.h"
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#include "core/hle/service/ptm/ptm.h"
#include "core/hle/shared_page.h"
#include "core/movie.h"
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#include "core/settings.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
namespace SharedPage {
static std::chrono::seconds GetInitTime() {
u64 override_init_time = Core::Movie::GetInstance().GetOverrideInitTime();
if (override_init_time) {
// Override the clock init time with the one in the movie
return std::chrono::seconds(override_init_time);
}
switch (Settings::values.init_clock) {
case Settings::InitClock::SystemTime: {
auto now = std::chrono::system_clock::now();
// If the system time is in daylight saving, we give an additional hour to console time
std::time_t now_time_t = std::chrono::system_clock::to_time_t(now);
std::tm* now_tm = std::localtime(&now_time_t);
if (now_tm && now_tm->tm_isdst > 0)
now = now + std::chrono::hours(1);
return std::chrono::duration_cast<std::chrono::seconds>(now.time_since_epoch());
}
case Settings::InitClock::FixedTime:
return std::chrono::seconds(Settings::values.init_time);
}
}
Handler::Handler() {
std::memset(&shared_page, 0, sizeof(shared_page));
shared_page.running_hw = 0x1; // product
// Some games wait until this value becomes 0x1, before asking running_hw
shared_page.unknown_value = 0x1;
// Set to a completely full battery
shared_page.battery_state.charge_level.Assign(
static_cast<u8>(Service::PTM::ChargeLevels::CompletelyFull));
shared_page.battery_state.is_adapter_connected.Assign(1);
shared_page.battery_state.is_charging.Assign(1);
init_time = GetInitTime();
using namespace std::placeholders;
update_time_event = CoreTiming::RegisterEvent(
"SharedPage::UpdateTimeCallback", std::bind(&Handler::UpdateTimeCallback, this, _1, _2));
CoreTiming::ScheduleEvent(0, update_time_event);
float slidestate =
Settings::values.toggle_3d ? (float_le)Settings::values.factor_3d / 100 : 0.0f;
shared_page.sliderstate_3d = slidestate;
}
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/// Gets system time in 3DS format. The epoch is Jan 1900, and the unit is millisecond.
u64 Handler::GetSystemTime() const {
std::chrono::milliseconds now =
init_time +
std::chrono::duration_cast<std::chrono::milliseconds>(CoreTiming::GetGlobalTimeUs());
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// 3DS system does't allow user to set a time before Jan 1 2000,
// so we use it as an auxiliary epoch to calculate the console time.
std::tm epoch_tm;
epoch_tm.tm_sec = 0;
epoch_tm.tm_min = 0;
epoch_tm.tm_hour = 0;
epoch_tm.tm_mday = 1;
epoch_tm.tm_mon = 0;
epoch_tm.tm_year = 100;
epoch_tm.tm_isdst = 0;
u64 epoch = std::mktime(&epoch_tm) * 1000;
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// 3DS console time uses Jan 1 1900 as internal epoch,
// so we use the milliseconds between 1900 and 2000 as base console time
u64 console_time = 3155673600000ULL;
// Only when system time is after 2000, we set it as 3DS system time
if (now.count() > epoch) {
console_time += (now.count() - epoch);
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}
return console_time;
}
void Handler::UpdateTimeCallback(u64 userdata, int cycles_late) {
DateTime& date_time =
shared_page.date_time_counter % 2 ? shared_page.date_time_0 : shared_page.date_time_1;
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date_time.date_time = GetSystemTime();
date_time.update_tick = CoreTiming::GetTicks();
date_time.tick_to_second_coefficient = BASE_CLOCK_RATE_ARM11;
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date_time.tick_offset = 0;
++shared_page.date_time_counter;
// system time is updated hourly
CoreTiming::ScheduleEvent(msToCycles(60 * 60 * 1000) - cycles_late, update_time_event);
}
void Handler::SetMacAddress(const MacAddress& addr) {
std::memcpy(shared_page.wifi_macaddr, addr.data(), sizeof(MacAddress));
}
void Handler::SetWifiLinkLevel(WifiLinkLevel level) {
shared_page.wifi_link_level = static_cast<u8>(level);
}
void Handler::Set3DLed(u8 state) {
shared_page.ledstate_3d = state;
}
SharedPageDef& Handler::GetSharedPage() {
return shared_page;
}
} // namespace SharedPage