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ir: implement circle pad pro

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wwylele 2017-02-25 21:21:52 +02:00
parent 6843538f7c
commit 12bcf64ab5
6 changed files with 761 additions and 44 deletions
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231
src/core/hle/service/ir/extra_hid.cpp Normal file
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// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/alignment.h"
#include "common/bit_field.h"
#include "common/string_util.h"
#include "core/core_timing.h"
#include "core/hle/service/ir/extra_hid.h"
#include "core/settings.h"
namespace Service {
namespace IR {
enum class RequestID : u8 {
/**
* ConfigureHIDPolling request
* Starts HID input polling, or changes the polling interval if it is already started.
* Inputs:
* byte 0: request ID
* byte 1: polling interval in ms
* byte 2: unknown
*/
ConfigureHIDPolling = 1,
/**
* ReadCalibrationData request
* Reads the calibration data stored in circle pad pro.
* Inputs:
* byte 0: request ID
* byte 1: expected response time in ms?
* byte 2-3: data offset (aligned to 0x10)
* byte 4-5: data size (aligned to 0x10)
*/
ReadCalibrationData = 2,
// TODO(wwylele): there are three more request types (id = 3, 4 and 5)
};
enum class ResponseID : u8 {
/**
* PollHID response
* Sends current HID status
* Output:
* byte 0: response ID
* byte 1-3: Right circle pad position. This three bytes are two little-endian 12-bit
* fields. The first one is for x-axis and the second one is for y-axis.
* byte 4: bit[0:4] battery level; bit[5] ZL button; bit[6] ZR button; bit[7] R button
* Note that for the three button fields, the bit is set when the button is NOT pressed.
* byte 5: unknown
*/
PollHID = 0x10,
/**
* ReadCalibrationData response
* Sends the calibration data reads from circle pad pro.
* Output:
* byte 0: resonse ID
* byte 1-2: data offset (aligned to 0x10)
* byte 3-4: data size (aligned to 0x10)
* byte 5-...: calibration data
*/
ReadCalibrationData = 0x11,
};
ExtraHID::ExtraHID(SendFunc send_func) : IRDevice(send_func) {
LoadInputDevices();
// The data below was retrieved from a New 3DS
// TODO(wwylele): this data is probably writable (via request 3?) and thus should be saved to
// and loaded from somewhere.
calibration_data = std::array<u8, 0x40>{{
// 0x00
0x00, 0x00, 0x08, 0x80, 0x85, 0xEB, 0x11, 0x3F,
// 0x08
0x85, 0xEB, 0x11, 0x3F, 0xFF, 0xFF, 0xFF, 0xF5,
// 0x10
0xFF, 0x00, 0x08, 0x80, 0x85, 0xEB, 0x11, 0x3F,
// 0x18
0x85, 0xEB, 0x11, 0x3F, 0xFF, 0xFF, 0xFF, 0x65,
// 0x20
0xFF, 0x00, 0x08, 0x80, 0x85, 0xEB, 0x11, 0x3F,
// 0x28
0x85, 0xEB, 0x11, 0x3F, 0xFF, 0xFF, 0xFF, 0x65,
// 0x30
0xFF, 0x00, 0x08, 0x80, 0x85, 0xEB, 0x11, 0x3F,
// 0x38
0x85, 0xEB, 0x11, 0x3F, 0xFF, 0xFF, 0xFF, 0x65,
}};
hid_polling_callback_id =
CoreTiming::RegisterEvent("ExtraHID::SendHIDStatus", [this](u64, int cycles_late) {
SendHIDStatus();
CoreTiming::ScheduleEvent(msToCycles(hid_period) - cycles_late,
hid_polling_callback_id);
});
}
ExtraHID::~ExtraHID() {
OnDisconnect();
}
void ExtraHID::OnConnect() {}
void ExtraHID::OnDisconnect() {
CoreTiming::UnscheduleEvent(hid_polling_callback_id, 0);
}
void ExtraHID::HandleConfigureHIDPollingRequest(const std::vector<u8>& request) {
if (request.size() != 3) {
LOG_ERROR(Service_IR, "Wrong request size (%zu): %s", request.size(),
Common::ArrayToString(request.data(), request.size()).c_str());
return;
}
// Change HID input polling interval
CoreTiming::UnscheduleEvent(hid_polling_callback_id, 0);
hid_period = request[1];
CoreTiming::ScheduleEvent(msToCycles(hid_period), hid_polling_callback_id);
}
void ExtraHID::HandleReadCalibrationDataRequest(const std::vector<u8>& request_buf) {
struct ReadCalibrationDataRequest {
RequestID request_id;
u8 expected_response_time;
u16_le offset;
u16_le size;
};
static_assert(sizeof(ReadCalibrationDataRequest) == 6,
"ReadCalibrationDataRequest has wrong size");
if (request_buf.size() != sizeof(ReadCalibrationDataRequest)) {
LOG_ERROR(Service_IR, "Wrong request size (%zu): %s", request_buf.size(),
Common::ArrayToString(request_buf.data(), request_buf.size()).c_str());
return;
}
ReadCalibrationDataRequest request;
std::memcpy(&request, request_buf.data(), sizeof(request));
const u16 offset = Common::AlignDown(request.offset, 16);
const u16 size = Common::AlignDown(request.size, 16);
if (offset + size > calibration_data.size()) {
LOG_ERROR(Service_IR, "Read beyond the end of calibration data! (offset=%u, size=%u)",
offset, size);
return;
}
std::vector<u8> response(5);
response[0] = static_cast<u8>(ResponseID::ReadCalibrationData);
std::memcpy(&response[1], &request.offset, sizeof(request.offset));
std::memcpy(&response[3], &request.size, sizeof(request.size));
response.insert(response.end(), calibration_data.begin() + offset,
calibration_data.begin() + offset + size);
Send(response);
}
void ExtraHID::OnReceive(const std::vector<u8>& data) {
switch (static_cast<RequestID>(data[0])) {
case RequestID::ConfigureHIDPolling:
HandleConfigureHIDPollingRequest(data);
break;
case RequestID::ReadCalibrationData:
HandleReadCalibrationDataRequest(data);
break;
default:
LOG_ERROR(Service_IR, "Unknown request: %s",
Common::ArrayToString(data.data(), data.size()).c_str());
break;
}
}
void ExtraHID::SendHIDStatus() {
if (is_device_reload_pending.exchange(false))
LoadInputDevices();
struct {
union {
BitField<0, 8, u32_le> header;
BitField<8, 12, u32_le> c_stick_x;
BitField<20, 12, u32_le> c_stick_y;
} c_stick;
union {
BitField<0, 5, u8> battery_level;
BitField<5, 1, u8> zl_not_held;
BitField<6, 1, u8> zr_not_held;
BitField<7, 1, u8> r_not_held;
} buttons;
u8 unknown;
} response;
static_assert(sizeof(response) == 6, "HID status response has wrong size!");
constexpr int C_STICK_CENTER = 0x800;
// TODO(wwylele): this value is not accurately measured. We currently assume that the axis can
// take values in the whole range of a 12-bit integer.
constexpr int C_STICK_RADIUS = 0x7FF;
float x, y;
std::tie(x, y) = c_stick->GetStatus();
response.c_stick.header.Assign(static_cast<u8>(ResponseID::PollHID));
response.c_stick.c_stick_x.Assign(static_cast<u32>(C_STICK_CENTER + C_STICK_RADIUS * x));
response.c_stick.c_stick_y.Assign(static_cast<u32>(C_STICK_CENTER + C_STICK_RADIUS * y));
response.buttons.battery_level.Assign(0x1F);
response.buttons.zl_not_held.Assign(!zl->GetStatus());
response.buttons.zr_not_held.Assign(!zr->GetStatus());
response.buttons.r_not_held.Assign(1);
response.unknown = 0;
std::vector<u8> response_buffer(sizeof(response));
memcpy(response_buffer.data(), &response, sizeof(response));
Send(response_buffer);
}
void ExtraHID::RequestInputDevicesReload() {
is_device_reload_pending.store(true);
}
void ExtraHID::LoadInputDevices() {
zl = Input::CreateDevice<Input::ButtonDevice>(
Settings::values.buttons[Settings::NativeButton::ZL]);
zr = Input::CreateDevice<Input::ButtonDevice>(
Settings::values.buttons[Settings::NativeButton::ZR]);
c_stick = Input::CreateDevice<Input::AnalogDevice>(
Settings::values.analogs[Settings::NativeAnalog::CStick]);
}
} // namespace IR
} // namespace Service

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src/core/hle/service/ir/extra_hid.h Normal file
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// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <atomic>
#include "core/frontend/input.h"
#include "core/hle/service/ir/ir_user.h"
namespace Service {
namespace IR {
/**
* An IRDevice emulating Circle Pad Pro or New 3DS additional HID hardware.
* This device sends periodic udates at a rate configured by the 3DS, and sends calibration data if
* requested.
*/
class ExtraHID final : public IRDevice {
public:
explicit ExtraHID(SendFunc send_func);
~ExtraHID();
void OnConnect() override;
void OnDisconnect() override;
void OnReceive(const std::vector<u8>& data) override;
/// Requests input devices reload from current settings. Called when the input settings change.
void RequestInputDevicesReload();
private:
void SendHIDStatus();
void HandleConfigureHIDPollingRequest(const std::vector<u8>& request);
void HandleReadCalibrationDataRequest(const std::vector<u8>& request);
void LoadInputDevices();
u8 hid_period;
int hid_polling_callback_id;
std::array<u8, 0x40> calibration_data;
std::unique_ptr<Input::ButtonDevice> zl;
std::unique_ptr<Input::ButtonDevice> zr;
std::unique_ptr<Input::AnalogDevice> c_stick;
std::atomic<bool> is_device_reload_pending;
};
} // namespace IR
} // namespace Service

489
src/core/hle/service/ir/ir_user.cpp
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// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <boost/crc.hpp>
#include <boost/optional.hpp>
#include "common/string_util.h"
#include "common/swap.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/service/ir/extra_hid.h"
#include "core/hle/service/ir/ir.h"
#include "core/hle/service/ir/ir_user.h"
namespace Service {
namespace IR {
static Kernel::SharedPtr<Kernel::Event> conn_status_event;
static Kernel::SharedPtr<Kernel::SharedMemory> transfer_shared_memory;
// This is a header that will present in the ir:USER shared memory if it is initialized with
// InitializeIrNopShared service function. Otherwise the shared memory doesn't have this header if
// it is initialized with InitializeIrNop service function.
struct SharedMemoryHeader {
u32_le latest_receive_error_result;
u32_le latest_send_error_result;
// TODO(wwylele): for these fields below, make them enum when the meaning of values is known.
u8 connection_status;
u8 trying_to_connect_status;
u8 connection_role;
u8 machine_id;
u8 connected;
u8 network_id;
u8 initialized;
u8 unknown;
// This is not the end of the shared memory. It is followed by a receive buffer and a send
// buffer. We handle receive buffer in the BufferManager class. For the send buffer, because
// games usually don't access it, we don't emulate it.
};
static_assert(sizeof(SharedMemoryHeader) == 16, "SharedMemoryHeader has wrong size!");
/**
* A manager of the send/receive buffers in the shared memory. Currently it is only used for the
* receive buffer.
*
* A buffer consists of three parts:
* - BufferInfo: stores available count of packets, and their position in the PacketInfo
* circular queue.
* - PacketInfo circular queue: stores the position of each avaiable packets in the Packet data
* buffer. Each entry is a pair of {offset, size}.
* - Packet data circular buffer: stores the actual data of packets.
*
* IR packets can be put into and get from the buffer.
*
* When a new packet is put into the buffer, its data is put into the data circular buffer,
* following the end of previous packet data. A new entry is also added to the PacketInfo circular
* queue pointing to the added packet data. Then BufferInfo is updated.
*
* Packets can be released from the other end of the buffer. When releasing a packet, the front
* entry in thePacketInfo circular queue is removed, and as a result the corresponding memory in the
* data circular buffer is also released. BufferInfo is updated as well.
*
* The client application usually has a similar manager constructed over the same shared memory
* region, performing the same put/get/release operation. This way the client and the service
* communicate via a pair of manager of the same buffer.
*
* TODO(wwylele): implement Get function, which is used by ReceiveIrnop service function.
*/
class BufferManager {
public:
BufferManager(Kernel::SharedPtr<Kernel::SharedMemory> shared_memory_, u32 info_offset_,
u32 buffer_offset_, u32 max_packet_count_, u32 buffer_size)
: shared_memory(shared_memory_), info_offset(info_offset_), buffer_offset(buffer_offset_),
max_packet_count(max_packet_count_),
max_data_size(buffer_size - sizeof(PacketInfo) * max_packet_count_) {
UpdateBufferInfo();
}
/**
* Puts a packet to the head of the buffer.
* @params packet The data of the packet to put.
* @returns whether the operation is successful.
*/
bool Put(const std::vector<u8>& packet) {
if (info.packet_count == max_packet_count)
return false;
u32 write_offset;
// finds free space offset in data buffer
if (info.packet_count == 0) {
write_offset = 0;
if (packet.size() > max_data_size)
return false;
} else {
const u32 last_index = (info.end_index + max_packet_count - 1) % max_packet_count;
const PacketInfo first = GetPacketInfo(info.begin_index);
const PacketInfo last = GetPacketInfo(last_index);
write_offset = (last.offset + last.size) % max_data_size;
const u32 free_space = (first.offset + max_data_size - write_offset) % max_data_size;
if (packet.size() > free_space)
return false;
}
// writes packet info
PacketInfo packet_info{write_offset, static_cast<u32>(packet.size())};
SetPacketInfo(info.end_index, packet_info);
// writes packet data
for (size_t i = 0; i < packet.size(); ++i) {
*GetDataBufferPointer((write_offset + i) % max_data_size) = packet[i];
}
// updates buffer info
info.end_index++;
info.end_index %= max_packet_count;
info.packet_count++;
UpdateBufferInfo();
return true;
}
/**
* Release packets from the tail of the buffer
* @params count Numbers of packets to release.
* @returns whether the operation is successful.
*/
bool Release(u32 count) {
if (info.packet_count < count)
return false;
info.packet_count -= count;
info.begin_index += count;
info.begin_index %= max_packet_count;
UpdateBufferInfo();
return true;
}
private:
struct BufferInfo {
u32_le begin_index;
u32_le end_index;
u32_le packet_count;
u32_le unknown;
};
static_assert(sizeof(BufferInfo) == 16, "BufferInfo has wrong size!");
struct PacketInfo {
u32_le offset;
u32_le size;
};
static_assert(sizeof(PacketInfo) == 8, "PacketInfo has wrong size!");
u8* GetPacketInfoPointer(u32 index) {
return shared_memory->GetPointer(buffer_offset + sizeof(PacketInfo) * index);
}
void SetPacketInfo(u32 index, const PacketInfo& packet_info) {
memcpy(GetPacketInfoPointer(index), &packet_info, sizeof(PacketInfo));
}
PacketInfo GetPacketInfo(u32 index) {
PacketInfo packet_info;
memcpy(&packet_info, GetPacketInfoPointer(index), sizeof(PacketInfo));
return packet_info;
}
u8* GetDataBufferPointer(u32 offset) {
return shared_memory->GetPointer(buffer_offset + sizeof(PacketInfo) * max_packet_count +
offset);
}
void UpdateBufferInfo() {
if (info_offset) {
memcpy(shared_memory->GetPointer(info_offset), &info, sizeof(info));
}
}
BufferInfo info{0, 0, 0, 0};
Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;
u32 info_offset;
u32 buffer_offset;
u32 max_packet_count;
u32 max_data_size;
};
static Kernel::SharedPtr<Kernel::Event> conn_status_event, send_event, receive_event;
static Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;
static std::unique_ptr<ExtraHID> extra_hid;
static IRDevice* connected_device;
static boost::optional<BufferManager> receive_buffer;
/// Wraps the payload into packet and puts it to the receive buffer
static void PutToReceive(const std::vector<u8>& payload) {
LOG_TRACE(Service_IR, "called, data=%s",
Common::ArrayToString(payload.data(), payload.size()).c_str());
size_t size = payload.size();
std::vector<u8> packet;
// Builds packet header. For the format info:
// https://www.3dbrew.org/wiki/IRUSER_Shared_Memory#Packet_structure
// fixed value
packet.push_back(0xA5);
// destination network ID
u8 network_id = *(shared_memory->GetPointer(offsetof(SharedMemoryHeader, network_id)));
packet.push_back(network_id);
// puts the size info.
// The highest bit of the first byte is unknown, which is set to zero here. The second highest
// bit is a flag that determines whether the size info is in extended form. If the packet size
// can be represent within 6 bits, the short form (1 byte) of size info is chosen, the size is
// put to the lower bits of this byte, and the flag is clear. If the packet size cannot be
// represent within 6 bits, the extended form (2 bytes) is chosen, the lower 8 bits of the size
// is put to the second byte, the higher bits of the size is put to the lower bits of the first
// byte, and the flag is set. Note that the packet size must be within 14 bits due to this
// format restriction, or it will overlap with the flag bit.
if (size < 0x40) {
packet.push_back(static_cast<u8>(size));
} else if (size < 0x4000) {
packet.push_back(static_cast<u8>(size >> 8) | 0x40);
packet.push_back(static_cast<u8>(size));
} else {
ASSERT(false);
}
// puts the payload
packet.insert(packet.end(), payload.begin(), payload.end());
// calculates CRC and puts to the end
packet.push_back(boost::crc<8, 0x07, 0, 0, false, false>(packet.data(), packet.size()));
if (receive_buffer->Put(packet)) {
receive_event->Signal();
} else {
LOG_ERROR(Service_IR, "receive buffer is full!");
}
}
/**
* IR::InitializeIrNopShared service function
* Initializes ir:USER service with a user provided shared memory. The shared memory is configured
* to shared mode (with SharedMemoryHeader at the beginning of the shared memory).
* Inputs:
* 1 : Size of transfer buffer
* 1 : Size of shared memory
* 2 : Recv buffer size
* 3 : unknown
* 3 : Recv buffer packet count
* 4 : Send buffer size
* 5 : unknown
* 5 : Send buffer packet count
* 6 : BaudRate (u8)
* 7 : 0
* 8 : Handle of transfer shared memory
* 7 : 0 (Handle descriptor)
* 8 : Handle of shared memory
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void InitializeIrNopShared(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x18, 6, 2);
const u32 shared_buff_size = rp.Pop<u32>();
const u32 recv_buff_size = rp.Pop<u32>();
const u32 recv_buff_packet_count = rp.Pop<u32>();
const u32 send_buff_size = rp.Pop<u32>();
const u32 send_buff_packet_count = rp.Pop<u32>();
const u8 baud_rate = rp.Pop<u8>();
const Kernel::Handle handle = rp.PopHandle();
u32 transfer_buff_size = cmd_buff[1];
u32 recv_buff_size = cmd_buff[2];
u32 unk1 = cmd_buff[3];
u32 send_buff_size = cmd_buff[4];
u32 unk2 = cmd_buff[5];
u8 baud_rate = cmd_buff[6] & 0xFF;
Kernel::Handle handle = cmd_buff[8];
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
if (Kernel::g_handle_table.IsValid(handle)) {
transfer_shared_memory = Kernel::g_handle_table.Get<Kernel::SharedMemory>(handle);
transfer_shared_memory->name = "IR:TransferSharedMemory";
shared_memory = Kernel::g_handle_table.Get<Kernel::SharedMemory>(handle);
if (!shared_memory) {
LOG_CRITICAL(Service_IR, "invalid shared memory handle 0x%08X", handle);
rb.Push(ResultCode(ErrorDescription::InvalidHandle, ErrorModule::OS,
ErrorSummary::WrongArgument, ErrorLevel::Permanent));
return;
}
shared_memory->name = "IR_USER: shared memory";
cmd_buff[1] = RESULT_SUCCESS.raw;
receive_buffer =
BufferManager(shared_memory, 0x10, 0x20, recv_buff_packet_count, recv_buff_size);
SharedMemoryHeader shared_memory_init{};
shared_memory_init.initialized = 1;
std::memcpy(shared_memory->GetPointer(), &shared_memory_init, sizeof(SharedMemoryHeader));
LOG_WARNING(Service_IR, "(STUBBED) called, transfer_buff_size=%d, recv_buff_size=%d, "
"unk1=%d, send_buff_size=%d, unk2=%d, baud_rate=%u, handle=0x%08X",
transfer_buff_size, recv_buff_size, unk1, send_buff_size, unk2, baud_rate, handle);
rb.Push(RESULT_SUCCESS);
LOG_INFO(Service_IR, "called, shared_buff_size=%u, recv_buff_size=%u, "
"recv_buff_packet_count=%u, send_buff_size=%u, "
"send_buff_packet_count=%u, baud_rate=%u, handle=0x%08X",
shared_buff_size, recv_buff_size, recv_buff_packet_count, send_buff_size,
send_buff_packet_count, baud_rate, handle);
}
/**
* IR::RequireConnection service function
* Searches for an IR device and connects to it. After connecting to the device, applications can
* use SendIrNop function, ReceiveIrNop function (or read from the buffer directly) to communicate
* with the device.
* Inputs:
* 1 : unknown (u8), looks like always 1
* 1 : device ID? always 1 for circle pad pro
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void RequireConnection(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x06, 1, 0);
const u8 device_id = rp.Pop<u8>();
conn_status_event->Signal();
u8* shared_memory_ptr = shared_memory->GetPointer();
if (device_id == 1) {
// These values are observed on a New 3DS. The meaning of them is unclear.
// TODO (wwylele): should assign network_id a (random?) number
shared_memory_ptr[offsetof(SharedMemoryHeader, connection_status)] = 2;
shared_memory_ptr[offsetof(SharedMemoryHeader, connection_role)] = 2;
shared_memory_ptr[offsetof(SharedMemoryHeader, connected)] = 1;
cmd_buff[1] = RESULT_SUCCESS.raw;
connected_device = extra_hid.get();
connected_device->OnConnect();
conn_status_event->Signal();
} else {
LOG_WARNING(Service_IR, "unknown device id %u. Won't connect.", device_id);
shared_memory_ptr[offsetof(SharedMemoryHeader, connection_status)] = 1;
shared_memory_ptr[offsetof(SharedMemoryHeader, trying_to_connect_status)] = 2;
}
LOG_WARNING(Service_IR, "(STUBBED) called");
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
LOG_INFO(Service_IR, "called, device_id = %u", device_id);
}
/**
* IR::GetReceiveEvent service function
* Gets an event that is signaled when a packet is received from the IR device.
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : 0 (Handle descriptor)
* 3 : Receive event handle
*/
void GetReceiveEvent(Interface* self) {
IPC::RequestBuilder rb(Kernel::GetCommandBuffer(), 0x0A, 1, 2);
rb.Push(RESULT_SUCCESS);
rb.PushCopyHandles(Kernel::g_handle_table.Create(Service::IR::receive_event).MoveFrom());
LOG_INFO(Service_IR, "called");
}
/**
* IR::GetSendEvent service function
* Gets an event that is signaled when the sending of a packet is complete
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : 0 (Handle descriptor)
* 3 : Send event handle
*/
void GetSendEvent(Interface* self) {
IPC::RequestBuilder rb(Kernel::GetCommandBuffer(), 0x0B, 1, 2);
rb.Push(RESULT_SUCCESS);
rb.PushCopyHandles(Kernel::g_handle_table.Create(Service::IR::send_event).MoveFrom());
LOG_INFO(Service_IR, "called");
}
/**
* IR::Disconnect service function
* Disconnects from the current connected IR device.
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void Disconnect(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
if (connected_device) {
connected_device->OnDisconnect();
connected_device = nullptr;
conn_status_event->Signal();
}
cmd_buff[1] = RESULT_SUCCESS.raw;
u8* shared_memory_ptr = shared_memory->GetPointer();
shared_memory_ptr[offsetof(SharedMemoryHeader, connection_status)] = 0;
shared_memory_ptr[offsetof(SharedMemoryHeader, connected)] = 0;
LOG_WARNING(Service_IR, "(STUBBED) called");
IPC::RequestBuilder rb(Kernel::GetCommandBuffer(), 0x09, 1, 0);
rb.Push(RESULT_SUCCESS);
LOG_INFO(Service_IR, "called");
}
/**
* IR::GetConnectionStatusEvent service function
* Gets an event that is signaled when the connection status is changed
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Connection Status Event handle
* 2 : 0 (Handle descriptor)
* 3 : Connection Status Event handle
*/
static void GetConnectionStatusEvent(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
IPC::RequestBuilder rb(Kernel::GetCommandBuffer(), 0x0C, 1, 2);
cmd_buff[1] = RESULT_SUCCESS.raw;
cmd_buff[3] = Kernel::g_handle_table.Create(Service::IR::conn_status_event).MoveFrom();
rb.Push(RESULT_SUCCESS);
rb.PushCopyHandles(Kernel::g_handle_table.Create(Service::IR::conn_status_event).MoveFrom());
LOG_WARNING(Service_IR, "(STUBBED) called");
LOG_INFO(Service_IR, "called");
}
/**
* IR::FinalizeIrNop service function
* Finalize ir:USER service.
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void FinalizeIrNop(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
if (connected_device) {
connected_device->OnDisconnect();
connected_device = nullptr;
}
cmd_buff[1] = RESULT_SUCCESS.raw;
shared_memory = nullptr;
receive_buffer = boost::none;
LOG_WARNING(Service_IR, "(STUBBED) called");
IPC::RequestBuilder rb(Kernel::GetCommandBuffer(), 0x02, 1, 0);
rb.Push(RESULT_SUCCESS);
LOG_INFO(Service_IR, "called");
}
/**
* IR::SendIrNop service function
* Sends a packet to the connected IR device
* Inpus:
* 1 : Size of data to send
* 2 : 2 + (size << 14) (Static buffer descriptor)
* 3 : Data buffer address
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void SendIrNop(Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x0D, 1, 2);
const u32 size = rp.Pop<u32>();
const VAddr address = rp.PopStaticBuffer();
std::vector<u8> buffer(size);
Memory::ReadBlock(address, buffer.data(), size);
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
if (connected_device) {
connected_device->OnReceive(buffer);
send_event->Signal();
rb.Push(RESULT_SUCCESS);
} else {
LOG_ERROR(Service_IR, "not connected");
rb.Push(ResultCode(static_cast<ErrorDescription>(13), ErrorModule::IR,
ErrorSummary::InvalidState, ErrorLevel::Status));
}
LOG_TRACE(Service_IR, "called, data=%s", Common::ArrayToString(buffer.data(), size).c_str());
}
/**
* IR::ReleaseReceivedData function
* Release a specified amount of packet from the receive buffer. This is called after the
* application reads received packet from the buffer directly, to release the buffer space for
* future packets.
* Inpus:
* 1 : Number of packets to release
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void ReleaseReceivedData(Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x19, 1, 0);
u32 count = rp.Pop<u32>();
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
if (receive_buffer->Release(count)) {
rb.Push(RESULT_SUCCESS);
} else {
LOG_ERROR(Service_IR, "failed to release %u packets", count);
rb.Push(ResultCode(ErrorDescription::NoData, ErrorModule::IR, ErrorSummary::NotFound,
ErrorLevel::Status));
}
LOG_TRACE(Service_IR, "called, count=%u", count);
}
const Interface::FunctionInfo FunctionTable[] = {
@ -118,10 +489,10 @@ const Interface::FunctionInfo FunctionTable[] = {
{0x000702C0, nullptr, "AutoConnection"},
{0x00080000, nullptr, "AnyConnection"},
{0x00090000, Disconnect, "Disconnect"},
{0x000A0000, nullptr, "GetReceiveEvent"},
{0x000B0000, nullptr, "GetSendEvent"},
{0x000A0000, GetReceiveEvent, "GetReceiveEvent"},
{0x000B0000, GetSendEvent, "GetSendEvent"},
{0x000C0000, GetConnectionStatusEvent, "GetConnectionStatusEvent"},
{0x000D0042, nullptr, "SendIrNop"},
{0x000D0042, SendIrNop, "SendIrNop"},
{0x000E0042, nullptr, "SendIrNopLarge"},
{0x000F0040, nullptr, "ReceiveIrnop"},
{0x00100042, nullptr, "ReceiveIrnopLarge"},
@ -133,7 +504,7 @@ const Interface::FunctionInfo FunctionTable[] = {
{0x00160000, nullptr, "GetSendSizeFreeAndUsed"},
{0x00170000, nullptr, "GetConnectionRole"},
{0x00180182, InitializeIrNopShared, "InitializeIrNopShared"},
{0x00190040, nullptr, "ReleaseReceivedData"},
{0x00190040, ReleaseReceivedData, "ReleaseReceivedData"},
{0x001A0040, nullptr, "SetOwnMachineId"},
};
@ -144,13 +515,43 @@ IR_User_Interface::IR_User_Interface() {
void InitUser() {
using namespace Kernel;
transfer_shared_memory = nullptr;
shared_memory = nullptr;
conn_status_event = Event::Create(ResetType::OneShot, "IR:ConnectionStatusEvent");
send_event = Event::Create(ResetType::OneShot, "IR:SendEvent");
receive_event = Event::Create(ResetType::OneShot, "IR:ReceiveEvent");
receive_buffer = boost::none;
extra_hid = std::make_unique<ExtraHID>(PutToReceive);
connected_device = nullptr;
}
void ShutdownUser() {
transfer_shared_memory = nullptr;
if (connected_device) {
connected_device->OnDisconnect();
connected_device = nullptr;
}
extra_hid = nullptr;
receive_buffer = boost::none;
shared_memory = nullptr;
conn_status_event = nullptr;
send_event = nullptr;
receive_event = nullptr;
}
void ReloadInputDevices() {
if (extra_hid)
extra_hid->RequestInputDevicesReload();
}
IRDevice::IRDevice(SendFunc send_func_) : send_func(send_func_) {}
IRDevice::~IRDevice() = default;
void IRDevice::Send(const std::vector<u8>& data) {
send_func(data);
}
} // namespace IR

33
src/core/hle/service/ir/ir_user.h
View file

@ -4,11 +4,41 @@
#pragma once
#include <functional>
#include "core/hle/service/service.h"
namespace Service {
namespace IR {
/// An interface representing a device that can communicate with 3DS via ir:USER service
class IRDevice {
public:
/**
* A function object that implements the method to send data to the 3DS, which takes a vector of
* data to send.
*/
using SendFunc = std::function<void(const std::vector<u8>& data)>;
explicit IRDevice(SendFunc send_func);
virtual ~IRDevice();
/// Called when connected with 3DS
virtual void OnConnect() = 0;
/// Called when disconnected from 3DS
virtual void OnDisconnect() = 0;
/// Called when data is received from the 3DS. This is invoked by the ir:USER send function.
virtual void OnReceive(const std::vector<u8>& data) = 0;
protected:
/// Sends data to the 3DS. The actual sending method is specified in the constructor
void Send(const std::vector<u8>& data);
private:
const SendFunc send_func;
};
class IR_User_Interface : public Service::Interface {
public:
IR_User_Interface();
@ -21,5 +51,8 @@ public:
void InitUser();
void ShutdownUser();
/// Reload input devices. Used when input configuration changed
void ReloadInputDevices();
} // namespace IR
} // namespace Service