141 lines
4.3 KiB
C++
141 lines
4.3 KiB
C++
// Copyright 2015 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include "core/hle/service/hid/hid.h"
|
|
|
|
#include "core/arm/arm_interface.h"
|
|
#include "core/hle/kernel/event.h"
|
|
#include "core/hle/kernel/shared_memory.h"
|
|
#include "core/hle/hle.h"
|
|
|
|
namespace Service {
|
|
namespace HID {
|
|
|
|
Kernel::SharedPtr<Kernel::SharedMemory> g_shared_mem = nullptr;
|
|
|
|
Kernel::SharedPtr<Kernel::Event> g_event_pad_or_touch_1;
|
|
Kernel::SharedPtr<Kernel::Event> g_event_pad_or_touch_2;
|
|
Kernel::SharedPtr<Kernel::Event> g_event_accelerometer;
|
|
Kernel::SharedPtr<Kernel::Event> g_event_gyroscope;
|
|
Kernel::SharedPtr<Kernel::Event> g_event_debug_pad;
|
|
|
|
// Next Pad state update information
|
|
static PadState next_state = {{0}};
|
|
static u32 next_index = 0;
|
|
static s16 next_circle_x = 0;
|
|
static s16 next_circle_y = 0;
|
|
|
|
/**
|
|
* Gets a pointer to the PadData structure inside HID shared memory
|
|
*/
|
|
static inline PadData* GetPadData() {
|
|
return reinterpret_cast<PadData*>(g_shared_mem->GetPointer().ValueOr(nullptr));
|
|
}
|
|
|
|
/**
|
|
* Circle Pad from keys.
|
|
*
|
|
* This is implemented as "pushed all the way to an edge (max) or centered (0)".
|
|
*
|
|
* Indicate the circle pad is pushed completely to the edge in 1 of 8 directions.
|
|
*/
|
|
static void UpdateNextCirclePadState() {
|
|
static const s16 max_value = 0x9C;
|
|
next_circle_x = next_state.circle_left ? -max_value : 0x0;
|
|
next_circle_x += next_state.circle_right ? max_value : 0x0;
|
|
next_circle_y = next_state.circle_down ? -max_value : 0x0;
|
|
next_circle_y += next_state.circle_up ? max_value : 0x0;
|
|
}
|
|
|
|
/**
|
|
* Sets a Pad state (button or button combo) as pressed
|
|
*/
|
|
void PadButtonPress(const PadState& pad_state) {
|
|
next_state.hex |= pad_state.hex;
|
|
UpdateNextCirclePadState();
|
|
}
|
|
|
|
/**
|
|
* Sets a Pad state (button or button combo) as released
|
|
*/
|
|
void PadButtonRelease(const PadState& pad_state) {
|
|
next_state.hex &= ~pad_state.hex;
|
|
UpdateNextCirclePadState();
|
|
}
|
|
|
|
/**
|
|
* Called after all Pad changes to be included in this update have been made,
|
|
* including both Pad key changes and analog circle Pad changes.
|
|
*/
|
|
void PadUpdateComplete() {
|
|
PadData* pad_data = GetPadData();
|
|
|
|
if (pad_data == nullptr) {
|
|
return;
|
|
}
|
|
|
|
// Update PadData struct
|
|
pad_data->current_state.hex = next_state.hex;
|
|
pad_data->index = next_index;
|
|
next_index = (next_index + 1) % pad_data->entries.size();
|
|
|
|
// Get the previous Pad state
|
|
u32 last_entry_index = (pad_data->index - 1) % pad_data->entries.size();
|
|
PadState old_state = pad_data->entries[last_entry_index].current_state;
|
|
|
|
// Compute bitmask with 1s for bits different from the old state
|
|
PadState changed;
|
|
changed.hex = (next_state.hex ^ old_state.hex);
|
|
|
|
// Compute what was added
|
|
PadState additions;
|
|
additions.hex = changed.hex & next_state.hex;
|
|
|
|
// Compute what was removed
|
|
PadState removals;
|
|
removals.hex = changed.hex & old_state.hex;
|
|
|
|
// Get the current Pad entry
|
|
PadDataEntry* current_pad_entry = &pad_data->entries[pad_data->index];
|
|
|
|
// Update entry properties
|
|
current_pad_entry->current_state.hex = next_state.hex;
|
|
current_pad_entry->delta_additions.hex = additions.hex;
|
|
current_pad_entry->delta_removals.hex = removals.hex;
|
|
|
|
// Set circle Pad
|
|
current_pad_entry->circle_pad_x = next_circle_x;
|
|
current_pad_entry->circle_pad_y = next_circle_y;
|
|
|
|
// If we just updated index 0, provide a new timestamp
|
|
if (pad_data->index == 0) {
|
|
pad_data->index_reset_ticks_previous = pad_data->index_reset_ticks;
|
|
pad_data->index_reset_ticks = (s64)Core::g_app_core->GetTicks();
|
|
}
|
|
|
|
// Signal both handles when there's an update to Pad or touch
|
|
g_event_pad_or_touch_1->Signal();
|
|
g_event_pad_or_touch_2->Signal();
|
|
}
|
|
|
|
void HIDInit() {
|
|
using namespace Kernel;
|
|
|
|
g_shared_mem = SharedMemory::Create("HID:SharedMem").MoveFrom();
|
|
|
|
// Create event handles
|
|
g_event_pad_or_touch_1 = Event::Create(RESETTYPE_ONESHOT, "HID:EventPadOrTouch1").MoveFrom();
|
|
g_event_pad_or_touch_2 = Event::Create(RESETTYPE_ONESHOT, "HID:EventPadOrTouch2").MoveFrom();
|
|
g_event_accelerometer = Event::Create(RESETTYPE_ONESHOT, "HID:EventAccelerometer").MoveFrom();
|
|
g_event_gyroscope = Event::Create(RESETTYPE_ONESHOT, "HID:EventGyroscope").MoveFrom();
|
|
g_event_debug_pad = Event::Create(RESETTYPE_ONESHOT, "HID:EventDebugPad").MoveFrom();
|
|
}
|
|
|
|
void HIDShutdown() {
|
|
|
|
}
|
|
|
|
}
|
|
}
|