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HID: manages updating itself using correct ticks

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This commit is contained in:
wwylele 2017-01-15 21:27:00 +02:00
parent 16a3f9e393
commit 3c333c53f1
3 changed files with 90 additions and 59 deletions
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142
src/core/hle/service/hid/hid.cpp
View file

@ -35,6 +35,15 @@ static u32 next_gyroscope_index;
static int enable_accelerometer_count = 0; // positive means enabled
static int enable_gyroscope_count = 0; // positive means enabled
static int pad_update_event;
static int accelerometer_update_event;
static int gyroscope_update_event;
// Updating period for each HID device. These empirical values are measured from a 11.2 3DS.
constexpr u64 pad_update_ticks = 268123480ull / 234;
constexpr u64 accelerometer_update_ticks = 268123480ull / 104;
constexpr u64 gyroscope_update_ticks = 268123480ull / 101;
static PadState GetCirclePadDirectionState(s16 circle_pad_x, s16 circle_pad_y) {
// 30 degree and 60 degree are angular thresholds for directions
constexpr float TAN30 = 0.577350269f;
@ -65,14 +74,9 @@ static PadState GetCirclePadDirectionState(s16 circle_pad_x, s16 circle_pad_y) {
return state;
}
void Update() {
static void UpdatePadCallback(u64 userdata, int cycles_late) {
SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer());
if (mem == nullptr) {
LOG_DEBUG(Service_HID, "Cannot update HID prior to mapping shared memory!");
return;
}
PadState state = VideoCore::g_emu_window->GetPadState();
// Get current circle pad position and update circle pad direction
@ -131,59 +135,68 @@ void Update() {
event_pad_or_touch_1->Signal();
event_pad_or_touch_2->Signal();
// Update accelerometer
if (enable_accelerometer_count > 0) {
mem->accelerometer.index = next_accelerometer_index;
next_accelerometer_index =
(next_accelerometer_index + 1) % mem->accelerometer.entries.size();
// Reschedule recurrent event
CoreTiming::ScheduleEvent(pad_update_ticks - cycles_late, pad_update_event);
}
AccelerometerDataEntry& accelerometer_entry =
mem->accelerometer.entries[mem->accelerometer.index];
std::tie(accelerometer_entry.x, accelerometer_entry.y, accelerometer_entry.z) =
VideoCore::g_emu_window->GetAccelerometerState();
static void UpdateAccelerometerCallback(u64 userdata, int cycles_late) {
SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer());
// Make up "raw" entry
// TODO(wwylele):
// From hardware testing, the raw_entry values are approximately,
// but not exactly, as twice as corresponding entries (or with a minus sign).
// It may caused by system calibration to the accelerometer.
// Figure out how it works, or, if no game reads raw_entry,
// the following three lines can be removed and leave raw_entry unimplemented.
mem->accelerometer.raw_entry.x = -2 * accelerometer_entry.x;
mem->accelerometer.raw_entry.z = 2 * accelerometer_entry.y;
mem->accelerometer.raw_entry.y = -2 * accelerometer_entry.z;
mem->accelerometer.index = next_accelerometer_index;
next_accelerometer_index = (next_accelerometer_index + 1) % mem->accelerometer.entries.size();
// If we just updated index 0, provide a new timestamp
if (mem->accelerometer.index == 0) {
mem->accelerometer.index_reset_ticks_previous = mem->accelerometer.index_reset_ticks;
mem->accelerometer.index_reset_ticks = (s64)CoreTiming::GetTicks();
}
AccelerometerDataEntry& accelerometer_entry =
mem->accelerometer.entries[mem->accelerometer.index];
std::tie(accelerometer_entry.x, accelerometer_entry.y, accelerometer_entry.z) =
VideoCore::g_emu_window->GetAccelerometerState();
event_accelerometer->Signal();
// Make up "raw" entry
// TODO(wwylele):
// From hardware testing, the raw_entry values are approximately, but not exactly, as twice as
// corresponding entries (or with a minus sign). It may caused by system calibration to the
// accelerometer. Figure out how it works, or, if no game reads raw_entry, the following three
// lines can be removed and leave raw_entry unimplemented.
mem->accelerometer.raw_entry.x = -2 * accelerometer_entry.x;
mem->accelerometer.raw_entry.z = 2 * accelerometer_entry.y;
mem->accelerometer.raw_entry.y = -2 * accelerometer_entry.z;
// If we just updated index 0, provide a new timestamp
if (mem->accelerometer.index == 0) {
mem->accelerometer.index_reset_ticks_previous = mem->accelerometer.index_reset_ticks;
mem->accelerometer.index_reset_ticks = (s64)CoreTiming::GetTicks();
}
// Update gyroscope
if (enable_gyroscope_count > 0) {
mem->gyroscope.index = next_gyroscope_index;
next_gyroscope_index = (next_gyroscope_index + 1) % mem->gyroscope.entries.size();
event_accelerometer->Signal();
GyroscopeDataEntry& gyroscope_entry = mem->gyroscope.entries[mem->gyroscope.index];
std::tie(gyroscope_entry.x, gyroscope_entry.y, gyroscope_entry.z) =
VideoCore::g_emu_window->GetGyroscopeState();
// Reschedule recurrent event
CoreTiming::ScheduleEvent(accelerometer_update_ticks - cycles_late, accelerometer_update_event);
}
// Make up "raw" entry
mem->gyroscope.raw_entry.x = gyroscope_entry.x;
mem->gyroscope.raw_entry.z = -gyroscope_entry.y;
mem->gyroscope.raw_entry.y = gyroscope_entry.z;
static void UpdateGyroscopeCallback(u64 userdata, int cycles_late) {
SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer());
// If we just updated index 0, provide a new timestamp
if (mem->gyroscope.index == 0) {
mem->gyroscope.index_reset_ticks_previous = mem->gyroscope.index_reset_ticks;
mem->gyroscope.index_reset_ticks = (s64)CoreTiming::GetTicks();
}
mem->gyroscope.index = next_gyroscope_index;
next_gyroscope_index = (next_gyroscope_index + 1) % mem->gyroscope.entries.size();
event_gyroscope->Signal();
GyroscopeDataEntry& gyroscope_entry = mem->gyroscope.entries[mem->gyroscope.index];
std::tie(gyroscope_entry.x, gyroscope_entry.y, gyroscope_entry.z) =
VideoCore::g_emu_window->GetGyroscopeState();
// Make up "raw" entry
mem->gyroscope.raw_entry.x = gyroscope_entry.x;
mem->gyroscope.raw_entry.z = -gyroscope_entry.y;
mem->gyroscope.raw_entry.y = gyroscope_entry.z;
// If we just updated index 0, provide a new timestamp
if (mem->gyroscope.index == 0) {
mem->gyroscope.index_reset_ticks_previous = mem->gyroscope.index_reset_ticks;
mem->gyroscope.index_reset_ticks = (s64)CoreTiming::GetTicks();
}
event_gyroscope->Signal();
// Reschedule recurrent event
CoreTiming::ScheduleEvent(gyroscope_update_ticks - cycles_late, gyroscope_update_event);
}
void GetIPCHandles(Service::Interface* self) {
@ -204,7 +217,11 @@ void EnableAccelerometer(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
++enable_accelerometer_count;
event_accelerometer->Signal();
// Schedules the accelerometer update event if the accelerometer was just enabled
if (enable_accelerometer_count == 1) {
CoreTiming::ScheduleEvent(accelerometer_update_ticks, accelerometer_update_event);
}
cmd_buff[1] = RESULT_SUCCESS.raw;
@ -215,7 +232,11 @@ void DisableAccelerometer(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
--enable_accelerometer_count;
event_accelerometer->Signal();
// Unschedules the accelerometer update event if the accelerometer was just disabled
if (enable_accelerometer_count == 0) {
CoreTiming::UnscheduleEvent(accelerometer_update_event, 0);
}
cmd_buff[1] = RESULT_SUCCESS.raw;
@ -226,7 +247,11 @@ void EnableGyroscopeLow(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
++enable_gyroscope_count;
event_gyroscope->Signal();
// Schedules the gyroscope update event if the gyroscope was just enabled
if (enable_gyroscope_count == 1) {
CoreTiming::ScheduleEvent(gyroscope_update_ticks, gyroscope_update_event);
}
cmd_buff[1] = RESULT_SUCCESS.raw;
@ -237,7 +262,11 @@ void DisableGyroscopeLow(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
--enable_gyroscope_count;
event_gyroscope->Signal();
// Unschedules the gyroscope update event if the gyroscope was just disabled
if (enable_gyroscope_count == 0) {
CoreTiming::UnscheduleEvent(gyroscope_update_event, 0);
}
cmd_buff[1] = RESULT_SUCCESS.raw;
@ -298,6 +327,15 @@ void Init() {
event_accelerometer = Event::Create(ResetType::OneShot, "HID:EventAccelerometer");
event_gyroscope = Event::Create(ResetType::OneShot, "HID:EventGyroscope");
event_debug_pad = Event::Create(ResetType::OneShot, "HID:EventDebugPad");
// Register update callbacks
pad_update_event = CoreTiming::RegisterEvent("HID::UpdatePadCallback", UpdatePadCallback);
accelerometer_update_event =
CoreTiming::RegisterEvent("HID::UpdateAccelerometerCallback", UpdateAccelerometerCallback);
gyroscope_update_event =
CoreTiming::RegisterEvent("HID::UpdateGyroscopeCallback", UpdateGyroscopeCallback);
CoreTiming::ScheduleEvent(pad_update_ticks, pad_update_event);
}
void Shutdown() {

3
src/core/hle/service/hid/hid.h
View file

@ -296,9 +296,6 @@ void GetGyroscopeLowRawToDpsCoefficient(Service::Interface* self);
*/
void GetGyroscopeLowCalibrateParam(Service::Interface* self);
/// Checks for user input updates
void Update();
/// Initialize HID service
void Init();