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-rw-r--r--src/core/hle/service/ir/ir_rst.cpp186
1 files changed, 173 insertions, 13 deletions
diff --git a/src/core/hle/service/ir/ir_rst.cpp b/src/core/hle/service/ir/ir_rst.cpp
index 3f1275c53..53807cd91 100644
--- a/src/core/hle/service/ir/ir_rst.cpp
+++ b/src/core/hle/service/ir/ir_rst.cpp
@@ -2,16 +2,135 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include <atomic>
+#include "common/bit_field.h"
+#include "core/core_timing.h"
+#include "core/frontend/input.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/shared_memory.h"
+#include "core/hle/service/hid/hid.h"
#include "core/hle/service/ir/ir.h"
#include "core/hle/service/ir/ir_rst.h"
+#include "core/settings.h"
namespace Service {
namespace IR {
-static Kernel::SharedPtr<Kernel::Event> handle_event;
+union PadState {
+ u32_le hex;
+
+ BitField<14, 1, u32_le> zl;
+ BitField<15, 1, u32_le> zr;
+
+ BitField<24, 1, u32_le> c_stick_right;
+ BitField<25, 1, u32_le> c_stick_left;
+ BitField<26, 1, u32_le> c_stick_up;
+ BitField<27, 1, u32_le> c_stick_down;
+};
+
+struct PadDataEntry {
+ PadState current_state;
+ PadState delta_additions;
+ PadState delta_removals;
+
+ s16_le c_stick_x;
+ s16_le c_stick_y;
+};
+
+struct SharedMem {
+ u64_le index_reset_ticks; ///< CPU tick count for when HID module updated entry index 0
+ u64_le index_reset_ticks_previous; ///< Previous `index_reset_ticks`
+ u32_le index;
+ INSERT_PADDING_WORDS(1);
+ std::array<PadDataEntry, 8> entries; ///< Last 8 pad entries
+};
+
+static_assert(sizeof(SharedMem) == 0x98, "SharedMem has wrong size!");
+
+static Kernel::SharedPtr<Kernel::Event> update_event;
static Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;
+static u32 next_pad_index;
+static int update_callback_id;
+static std::unique_ptr<Input::ButtonDevice> zl_button;
+static std::unique_ptr<Input::ButtonDevice> zr_button;
+static std::unique_ptr<Input::AnalogDevice> c_stick;
+static std::atomic<bool> is_device_reload_pending;
+static bool raw_c_stick;
+static int update_period;
+
+static void LoadInputDevices() {
+ zl_button = Input::CreateDevice<Input::ButtonDevice>(
+ Settings::values.buttons[Settings::NativeButton::ZL]);
+ zr_button = Input::CreateDevice<Input::ButtonDevice>(
+ Settings::values.buttons[Settings::NativeButton::ZR]);
+ c_stick = Input::CreateDevice<Input::AnalogDevice>(
+ Settings::values.analogs[Settings::NativeAnalog::CStick]);
+}
+
+static void UnloadInputDevices() {
+ zl_button = nullptr;
+ zr_button = nullptr;
+ c_stick = nullptr;
+}
+
+static void UpdateCallback(u64 userdata, int cycles_late) {
+ SharedMem* mem = reinterpret_cast<SharedMem*>(shared_memory->GetPointer());
+
+ if (is_device_reload_pending.exchange(false))
+ LoadInputDevices();
+
+ PadState state;
+ state.zl.Assign(zl_button->GetStatus());
+ state.zr.Assign(zr_button->GetStatus());
+
+ // Get current c-stick position and update c-stick direction
+ float c_stick_x_f, c_stick_y_f;
+ std::tie(c_stick_x_f, c_stick_y_f) = c_stick->GetStatus();
+ constexpr int MAX_CSTICK_RADIUS = 0x9C; // Max value for a c-stick radius
+ const s16 c_stick_x = static_cast<s16>(c_stick_x_f * MAX_CSTICK_RADIUS);
+ const s16 c_stick_y = static_cast<s16>(c_stick_y_f * MAX_CSTICK_RADIUS);
+
+ if (!raw_c_stick) {
+ const HID::DirectionState direction = HID::GetStickDirectionState(c_stick_x, c_stick_y);
+ state.c_stick_up.Assign(direction.up);
+ state.c_stick_down.Assign(direction.down);
+ state.c_stick_left.Assign(direction.left);
+ state.c_stick_right.Assign(direction.right);
+ }
+
+ // TODO (wwylele): implement raw C-stick data for raw_c_stick = true
+
+ const u32 last_entry_index = mem->index;
+ mem->index = next_pad_index;
+ next_pad_index = (next_pad_index + 1) % mem->entries.size();
+
+ // Get the previous Pad state
+ PadState old_state{mem->entries[last_entry_index].current_state};
+
+ // Compute bitmask with 1s for bits different from the old state
+ PadState changed = {state.hex ^ old_state.hex};
+
+ // Get the current Pad entry
+ PadDataEntry& pad_entry = mem->entries[mem->index];
+
+ // Update entry properties
+ pad_entry.current_state.hex = state.hex;
+ pad_entry.delta_additions.hex = changed.hex & state.hex;
+ pad_entry.delta_removals.hex = changed.hex & old_state.hex;
+ pad_entry.c_stick_x = c_stick_x;
+ pad_entry.c_stick_y = c_stick_y;
+
+ // If we just updated index 0, provide a new timestamp
+ if (mem->index == 0) {
+ mem->index_reset_ticks_previous = mem->index_reset_ticks;
+ mem->index_reset_ticks = CoreTiming::GetTicks();
+ }
+
+ update_event->Signal();
+
+ // Reschedule recurrent event
+ CoreTiming::ScheduleEvent(msToCycles(update_period) - cycles_late, update_callback_id);
+}
/**
* IR::GetHandles service function
@@ -22,18 +141,52 @@ static Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;
* 4 : Event handle
*/
static void GetHandles(Interface* self) {
- u32* cmd_buff = Kernel::GetCommandBuffer();
+ IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x01, 0, 0);
+ IPC::RequestBuilder rb = rp.MakeBuilder(1, 3);
+ rb.Push(RESULT_SUCCESS);
+ rb.PushMoveHandles(Kernel::g_handle_table.Create(Service::IR::shared_memory).MoveFrom(),
+ Kernel::g_handle_table.Create(Service::IR::update_event).MoveFrom());
+}
+
+/**
+ * IR::Initialize service function
+ * Inputs:
+ * 1 : pad state update period in ms
+ * 2 : bool output raw c-stick data
+ */
+static void Initialize(Interface* self) {
+ IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x02, 2, 0);
+ update_period = static_cast<int>(rp.Pop<u32>());
+ raw_c_stick = rp.Pop<bool>();
- cmd_buff[1] = RESULT_SUCCESS.raw;
- cmd_buff[2] = 0x4000000;
- cmd_buff[3] = Kernel::g_handle_table.Create(Service::IR::shared_memory).MoveFrom();
- cmd_buff[4] = Kernel::g_handle_table.Create(Service::IR::handle_event).MoveFrom();
+ if (raw_c_stick)
+ LOG_ERROR(Service_IR, "raw C-stick data is not implemented!");
+
+ next_pad_index = 0;
+ is_device_reload_pending.store(true);
+ CoreTiming::ScheduleEvent(msToCycles(update_period), update_callback_id);
+
+ IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+ rb.Push(RESULT_SUCCESS);
+
+ LOG_DEBUG(Service_IR, "called. update_period=%d, raw_c_stick=%d", update_period, raw_c_stick);
+}
+
+static void Shutdown(Interface* self) {
+ IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x03, 1, 0);
+
+ CoreTiming::UnscheduleEvent(update_callback_id, 0);
+ UnloadInputDevices();
+
+ IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+ rb.Push(RESULT_SUCCESS);
+ LOG_DEBUG(Service_IR, "called");
}
const Interface::FunctionInfo FunctionTable[] = {
{0x00010000, GetHandles, "GetHandles"},
- {0x00020080, nullptr, "Initialize"},
- {0x00030000, nullptr, "Shutdown"},
+ {0x00020080, Initialize, "Initialize"},
+ {0x00030000, Shutdown, "Shutdown"},
{0x00090000, nullptr, "WriteToTwoFields"},
};
@@ -43,17 +196,24 @@ IR_RST_Interface::IR_RST_Interface() {
void InitRST() {
using namespace Kernel;
-
+ // Note: these two kernel objects are even available before Initialize service function is
+ // called.
shared_memory =
- SharedMemory::Create(nullptr, 0x1000, MemoryPermission::ReadWrite,
- MemoryPermission::ReadWrite, 0, MemoryRegion::BASE, "IR:SharedMemory");
+ SharedMemory::Create(nullptr, 0x1000, MemoryPermission::ReadWrite, MemoryPermission::Read,
+ 0, MemoryRegion::BASE, "IRRST:SharedMemory");
+ update_event = Event::Create(ResetType::OneShot, "IRRST:UpdateEvent");
- handle_event = Event::Create(ResetType::OneShot, "IR:HandleEvent");
+ update_callback_id = CoreTiming::RegisterEvent("IRRST:UpdateCallBack", UpdateCallback);
}
void ShutdownRST() {
shared_memory = nullptr;
- handle_event = nullptr;
+ update_event = nullptr;
+ UnloadInputDevices();
+}
+
+void ReloadInputDevicesRST() {
+ is_device_reload_pending.store(true);
}
} // namespace IR
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 17:27:20 +0200