222 lines
8.1 KiB
C++
222 lines
8.1 KiB
C++
// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/logging/log.h"
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#include "common/emu_window.h"
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#include "core/hle/service/service.h"
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#include "core/hle/service/hid/hid.h"
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#include "core/hle/service/hid/hid_spvr.h"
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#include "core/hle/service/hid/hid_user.h"
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#include "core/core_timing.h"
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#include "core/hle/kernel/event.h"
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#include "core/hle/kernel/shared_memory.h"
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#include "video_core/video_core.h"
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namespace Service {
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namespace HID {
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static const int MAX_CIRCLEPAD_POS = 0x9C; ///< Max value for a circle pad position
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// Handle to shared memory region designated to HID_User service
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static Kernel::SharedPtr<Kernel::SharedMemory> shared_mem;
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// Event handles
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static Kernel::SharedPtr<Kernel::Event> event_pad_or_touch_1;
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static Kernel::SharedPtr<Kernel::Event> event_pad_or_touch_2;
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static Kernel::SharedPtr<Kernel::Event> event_accelerometer;
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static Kernel::SharedPtr<Kernel::Event> event_gyroscope;
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static Kernel::SharedPtr<Kernel::Event> event_debug_pad;
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static u32 next_pad_index;
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static u32 next_touch_index;
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const std::array<Service::HID::PadState, Settings::NativeInput::NUM_INPUTS> pad_mapping = {{
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Service::HID::PAD_A, Service::HID::PAD_B, Service::HID::PAD_X, Service::HID::PAD_Y,
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Service::HID::PAD_L, Service::HID::PAD_R, Service::HID::PAD_ZL, Service::HID::PAD_ZR,
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Service::HID::PAD_START, Service::HID::PAD_SELECT, Service::HID::PAD_NONE,
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Service::HID::PAD_UP, Service::HID::PAD_DOWN, Service::HID::PAD_LEFT, Service::HID::PAD_RIGHT,
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Service::HID::PAD_CIRCLE_UP, Service::HID::PAD_CIRCLE_DOWN, Service::HID::PAD_CIRCLE_LEFT, Service::HID::PAD_CIRCLE_RIGHT,
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Service::HID::PAD_C_UP, Service::HID::PAD_C_DOWN, Service::HID::PAD_C_LEFT, Service::HID::PAD_C_RIGHT
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}};
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// TODO(peachum):
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// Add a method for setting analog input from joystick device for the circle Pad.
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//
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// This method should:
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// * Be called after both PadButton<Press, Release>().
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// * Be called before PadUpdateComplete()
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// * Set current PadEntry.circle_pad_<axis> using analog data
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// * Set PadData.raw_circle_pad_data
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// * Set PadData.current_state.circle_right = 1 if current PadEntry.circle_pad_x >= 41
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// * Set PadData.current_state.circle_up = 1 if current PadEntry.circle_pad_y >= 41
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// * Set PadData.current_state.circle_left = 1 if current PadEntry.circle_pad_x <= -41
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// * Set PadData.current_state.circle_right = 1 if current PadEntry.circle_pad_y <= -41
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void Update() {
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SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer());
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const PadState state = VideoCore::g_emu_window->GetPadState();
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if (mem == nullptr) {
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LOG_DEBUG(Service_HID, "Cannot update HID prior to mapping shared memory!");
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return;
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}
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mem->pad.current_state.hex = state.hex;
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mem->pad.index = next_pad_index;
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next_touch_index = (next_touch_index + 1) % mem->pad.entries.size();
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// Get the previous Pad state
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u32 last_entry_index = (mem->pad.index - 1) % mem->pad.entries.size();
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PadState old_state = mem->pad.entries[last_entry_index].current_state;
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// Compute bitmask with 1s for bits different from the old state
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PadState changed = { { (state.hex ^ old_state.hex) } };
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// Get the current Pad entry
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PadDataEntry* pad_entry = &mem->pad.entries[mem->pad.index];
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// Update entry properties
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pad_entry->current_state.hex = state.hex;
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pad_entry->delta_additions.hex = changed.hex & state.hex;
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pad_entry->delta_removals.hex = changed.hex & old_state.hex;;
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// Set circle Pad
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pad_entry->circle_pad_x = state.circle_left ? -MAX_CIRCLEPAD_POS :
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state.circle_right ? MAX_CIRCLEPAD_POS : 0x0;
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pad_entry->circle_pad_y = state.circle_down ? -MAX_CIRCLEPAD_POS :
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state.circle_up ? MAX_CIRCLEPAD_POS : 0x0;
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// If we just updated index 0, provide a new timestamp
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if (mem->pad.index == 0) {
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mem->pad.index_reset_ticks_previous = mem->pad.index_reset_ticks;
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mem->pad.index_reset_ticks = (s64)CoreTiming::GetTicks();
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}
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mem->touch.index = next_touch_index;
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next_touch_index = (next_touch_index + 1) % mem->touch.entries.size();
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// Get the current touch entry
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TouchDataEntry* touch_entry = &mem->touch.entries[mem->touch.index];
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bool pressed = false;
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std::tie(touch_entry->x, touch_entry->y, pressed) = VideoCore::g_emu_window->GetTouchState();
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touch_entry->valid = pressed ? 1 : 0;
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// TODO(bunnei): We're not doing anything with offset 0xA8 + 0x18 of HID SharedMemory, which
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// supposedly is "Touch-screen entry, which contains the raw coordinate data prior to being
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// converted to pixel coordinates." (http://3dbrew.org/wiki/HID_Shared_Memory#Offset_0xA8).
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// If we just updated index 0, provide a new timestamp
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if (mem->touch.index == 0) {
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mem->touch.index_reset_ticks_previous = mem->touch.index_reset_ticks;
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mem->touch.index_reset_ticks = (s64)CoreTiming::GetTicks();
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}
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// Signal both handles when there's an update to Pad or touch
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event_pad_or_touch_1->Signal();
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event_pad_or_touch_2->Signal();
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}
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void GetIPCHandles(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = 0x14000000; // IPC Command Structure translate-header
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// TODO(yuriks): Return error from SendSyncRequest is this fails (part of IPC marshalling)
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cmd_buff[3] = Kernel::g_handle_table.Create(Service::HID::shared_mem).MoveFrom();
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cmd_buff[4] = Kernel::g_handle_table.Create(Service::HID::event_pad_or_touch_1).MoveFrom();
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cmd_buff[5] = Kernel::g_handle_table.Create(Service::HID::event_pad_or_touch_2).MoveFrom();
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cmd_buff[6] = Kernel::g_handle_table.Create(Service::HID::event_accelerometer).MoveFrom();
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cmd_buff[7] = Kernel::g_handle_table.Create(Service::HID::event_gyroscope).MoveFrom();
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cmd_buff[8] = Kernel::g_handle_table.Create(Service::HID::event_debug_pad).MoveFrom();
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}
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void EnableAccelerometer(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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event_accelerometer->Signal();
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_WARNING(Service_HID, "(STUBBED) called");
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}
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void DisableAccelerometer(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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event_accelerometer->Signal();
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_WARNING(Service_HID, "(STUBBED) called");
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}
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void EnableGyroscopeLow(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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event_gyroscope->Signal();
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_WARNING(Service_HID, "(STUBBED) called");
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}
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void DisableGyroscopeLow(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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event_gyroscope->Signal();
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_WARNING(Service_HID, "(STUBBED) called");
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}
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void GetSoundVolume(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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const u8 volume = 0x3F; // TODO(purpasmart): Find out if this is the max value for the volume
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cmd_buff[1] = RESULT_SUCCESS.raw;
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cmd_buff[2] = volume;
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LOG_WARNING(Service_HID, "(STUBBED) called");
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}
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void Init() {
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using namespace Kernel;
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AddService(new HID_U_Interface);
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AddService(new HID_SPVR_Interface);
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using Kernel::MemoryPermission;
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shared_mem = SharedMemory::Create(0x1000, MemoryPermission::ReadWrite,
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MemoryPermission::Read, "HID:SharedMem");
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next_pad_index = 0;
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next_touch_index = 0;
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// Create event handles
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event_pad_or_touch_1 = Event::Create(RESETTYPE_ONESHOT, "HID:EventPadOrTouch1");
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event_pad_or_touch_2 = Event::Create(RESETTYPE_ONESHOT, "HID:EventPadOrTouch2");
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event_accelerometer = Event::Create(RESETTYPE_ONESHOT, "HID:EventAccelerometer");
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event_gyroscope = Event::Create(RESETTYPE_ONESHOT, "HID:EventGyroscope");
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event_debug_pad = Event::Create(RESETTYPE_ONESHOT, "HID:EventDebugPad");
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}
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void Shutdown() {
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shared_mem = nullptr;
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event_pad_or_touch_1 = nullptr;
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event_pad_or_touch_2 = nullptr;
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event_accelerometer = nullptr;
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event_gyroscope = nullptr;
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event_debug_pad = nullptr;
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}
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} // namespace HID
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} // namespace Service
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