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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <atomic>
#include "common/logging/log.h"
#include "core/core_timing.h"
#include "core/frontend/input.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/service/hid/hid.h"
#include "core/hle/service/service.h"
namespace Service {
namespace HID {
// Updating period for each HID device.
// TODO(shinyquagsire23): These need better values.
constexpr u64 pad_update_ticks = BASE_CLOCK_RATE / 10000;
constexpr u64 accelerometer_update_ticks = BASE_CLOCK_RATE / 10000;
constexpr u64 gyroscope_update_ticks = BASE_CLOCK_RATE / 10000;
class IAppletResource final : public ServiceFramework<IAppletResource> {
public:
IAppletResource() : ServiceFramework("IAppletResource") {
static const FunctionInfo functions[] = {
{0, &IAppletResource::GetSharedMemoryHandle, "GetSharedMemoryHandle"},
};
RegisterHandlers(functions);
shared_mem = Kernel::SharedMemory::Create(
nullptr, 0x40000, Kernel::MemoryPermission::ReadWrite, Kernel::MemoryPermission::Read,
0, Kernel::MemoryRegion::BASE, "HID:SharedMemory");
// Register update callbacks
pad_update_event = CoreTiming::RegisterEvent(
"HID::UpdatePadCallback",
[this](u64 userdata, int cycles_late) { UpdatePadCallback(userdata, cycles_late); });
// TODO(shinyquagsire23): Other update callbacks? (accel, gyro?)
CoreTiming::ScheduleEvent(pad_update_ticks, pad_update_event);
}
private:
void GetSharedMemoryHandle(Kernel::HLERequestContext& ctx) {
IPC::RequestBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
rb.PushCopyObjects(shared_mem);
LOG_DEBUG(Service, "called");
}
void LoadInputDevices() {
std::transform(Settings::values.buttons.begin() + Settings::NativeButton::BUTTON_HID_BEGIN,
Settings::values.buttons.begin() + Settings::NativeButton::BUTTON_HID_END,
buttons.begin(), Input::CreateDevice<Input::ButtonDevice>);
// TODO(shinyquagsire23): sticks, gyro, touch, mouse, keyboard
}
void UpdatePadCallback(u64 userdata, int cycles_late) {
SharedMemory* mem = reinterpret_cast<SharedMemory*>(shared_mem->GetPointer());
if (is_device_reload_pending.exchange(false))
LoadInputDevices();
// Set up controllers as neon red+blue Joy-Con attached to console
ControllerHeader& controller_header = mem->controllers[Controller_Handheld].header;
controller_header.type = ControllerType_Handheld | ControllerType_JoyconPair;
controller_header.single_colors_descriptor = ColorDesc_ColorsNonexistent;
controller_header.right_color_body = JOYCON_BODY_NEON_RED;
controller_header.right_color_buttons = JOYCON_BUTTONS_NEON_RED;
controller_header.left_color_body = JOYCON_BODY_NEON_BLUE;
controller_header.left_color_buttons = JOYCON_BUTTONS_NEON_BLUE;
for (int layoutIdx = 0; layoutIdx < HID_NUM_LAYOUTS; layoutIdx++) {
ControllerLayout& layout = mem->controllers[Controller_Handheld].layouts[layoutIdx];
layout.header.num_entries = HID_NUM_ENTRIES;
layout.header.max_entry_index = HID_NUM_ENTRIES - 1;
// HID shared memory stores the state of the past 17 samples in a circlular buffer,
// each with a timestamp in number of samples since boot.
layout.header.timestamp_ticks = CoreTiming::GetTicks();
layout.header.latest_entry = (layout.header.latest_entry + 1) % HID_NUM_ENTRIES;
ControllerInputEntry& entry = layout.entries[layout.header.latest_entry];
entry.connection_state = ConnectionState_Connected | ConnectionState_Wired;
entry.timestamp++;
entry.timestamp_2++; // TODO(shinyquagsire23): Is this always identical to timestamp?
// TODO(shinyquagsire23): Set up some LUTs for each layout mapping in the future?
// For now everything is just the default handheld layout, but split Joy-Con will
// rotate the face buttons and directions for certain layouts.
ControllerPadState& state = entry.buttons;
using namespace Settings::NativeButton;
state.a.Assign(buttons[A - BUTTON_HID_BEGIN]->GetStatus());
state.b.Assign(buttons[B - BUTTON_HID_BEGIN]->GetStatus());
state.x.Assign(buttons[X - BUTTON_HID_BEGIN]->GetStatus());
state.y.Assign(buttons[Y - BUTTON_HID_BEGIN]->GetStatus());
state.lstick.Assign(buttons[LStick - BUTTON_HID_BEGIN]->GetStatus());
state.rstick.Assign(buttons[RStick - BUTTON_HID_BEGIN]->GetStatus());
state.l.Assign(buttons[L - BUTTON_HID_BEGIN]->GetStatus());
state.r.Assign(buttons[R - BUTTON_HID_BEGIN]->GetStatus());
state.zl.Assign(buttons[ZL - BUTTON_HID_BEGIN]->GetStatus());
state.zr.Assign(buttons[ZR - BUTTON_HID_BEGIN]->GetStatus());
state.plus.Assign(buttons[Plus - BUTTON_HID_BEGIN]->GetStatus());
state.minus.Assign(buttons[Minus - BUTTON_HID_BEGIN]->GetStatus());
state.dleft.Assign(buttons[DLeft - BUTTON_HID_BEGIN]->GetStatus());
state.dup.Assign(buttons[DUp - BUTTON_HID_BEGIN]->GetStatus());
state.dright.Assign(buttons[DRight - BUTTON_HID_BEGIN]->GetStatus());
state.ddown.Assign(buttons[DDown - BUTTON_HID_BEGIN]->GetStatus());
state.lstick_left.Assign(buttons[LStick_Left - BUTTON_HID_BEGIN]->GetStatus());
state.lstick_up.Assign(buttons[LStick_Up - BUTTON_HID_BEGIN]->GetStatus());
state.lstick_right.Assign(buttons[LStick_Right - BUTTON_HID_BEGIN]->GetStatus());
state.lstick_down.Assign(buttons[LStick_Down - BUTTON_HID_BEGIN]->GetStatus());
state.rstick_left.Assign(buttons[RStick_Left - BUTTON_HID_BEGIN]->GetStatus());
state.rstick_up.Assign(buttons[RStick_Up - BUTTON_HID_BEGIN]->GetStatus());
state.rstick_right.Assign(buttons[RStick_Right - BUTTON_HID_BEGIN]->GetStatus());
state.rstick_down.Assign(buttons[RStick_Down - BUTTON_HID_BEGIN]->GetStatus());
state.sl.Assign(buttons[SL - BUTTON_HID_BEGIN]->GetStatus());
state.sr.Assign(buttons[SR - BUTTON_HID_BEGIN]->GetStatus());
// TODO(shinyquagsire23): Analog stick vals
// TODO(shinyquagsire23): Update pad info proper, (circular buffers, timestamps,
// layouts)
}
// TODO(shinyquagsire23): Update touch info
// TODO(shinyquagsire23): Signal events
// Reschedule recurrent event
CoreTiming::ScheduleEvent(pad_update_ticks - cycles_late, pad_update_event);
}
// Handle to shared memory region designated to HID service
Kernel::SharedPtr<Kernel::SharedMemory> shared_mem;
// CoreTiming update events
CoreTiming::EventType* pad_update_event;
// Stored input state info
std::atomic<bool> is_device_reload_pending{true};
std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeButton::NUM_BUTTONS_HID>
buttons;
};
class Hid final : public ServiceFramework<Hid> {
public:
Hid() : ServiceFramework("hid") {
static const FunctionInfo functions[] = {
{0x00000000, &Hid::CreateAppletResource, "CreateAppletResource"},
};
RegisterHandlers(functions);
}
~Hid() = default;
private:
std::shared_ptr<IAppletResource> applet_resource;
void CreateAppletResource(Kernel::HLERequestContext& ctx) {
if (applet_resource == nullptr) {
applet_resource = std::make_shared<IAppletResource>();
}
auto sessions = Kernel::ServerSession::CreateSessionPair(applet_resource->GetServiceName());
auto server = std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions);
auto client = std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions);
applet_resource->ClientConnected(server);
LOG_DEBUG(Service, "called, initialized IAppletResource -> session=%u",
client->GetObjectId());
IPC::RequestBuilder rb{ctx, 2, 0, 1};
rb.Push(RESULT_SUCCESS);
rb.PushMoveObjects(std::move(client));
}
};
void ReloadInputDevices() {}
void InstallInterfaces(SM::ServiceManager& service_manager) {
std::make_shared<Hid>()->InstallAsService(service_manager);
}
} // namespace HID
} // namespace Service
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