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WII_IPC_HLE.cpp
642 lines (568 loc) · 16.4 KB
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WII_IPC_HLE.cpp
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// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
/*
This is the main Wii IPC file that handles all incoming IPC calls and directs them
to the right function.
IPC basics (IOS' usage):
Return values for file handles: All IPC calls will generate a return value to 0x04,
in case of success they are
Open: DeviceID
Close: 0
Read: Bytes read
Write: Bytes written
Seek: Seek position
Ioctl: 0 (in addition to that there may be messages to the out buffers)
Ioctlv: 0 (in addition to that there may be messages to the out buffers)
They will also generate a true or false return for UpdateInterrupts() in WII_IPC.cpp.
*/
#include <list>
#include <map>
#include <mutex>
#include <string>
#include <vector>
#include "Common/ChunkFile.h"
#include "Common/CommonPaths.h"
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
#include "Common/Thread.h"
#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "Core/CoreTiming.h"
#include "Core/Debugger/Debugger_SymbolMap.h"
#include "Core/HW/CPU.h"
#include "Core/HW/Memmap.h"
#include "Core/HW/SystemTimers.h"
#include "Core/HW/WII_IPC.h"
#include "Core/IPC_HLE/WII_IPC_HLE.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_DI.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_FileIO.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_es.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_fs.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_net.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_net_ssl.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_sdio_slot0.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_stm.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_bt_emu.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_bt_real.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_kbd.h"
#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_ven.h"
#if defined(__LIBUSB__)
#include "Core/IPC_HLE/WII_IPC_HLE_Device_hid.h"
#endif
#include "Core/PowerPC/PowerPC.h"
namespace WII_IPC_HLE_Interface
{
static std::map<u32, std::shared_ptr<IWII_IPC_HLE_Device>> s_device_map;
static std::mutex s_device_map_mutex;
// STATE_TO_SAVE
#define IPC_MAX_FDS 0x18
#define ES_MAX_COUNT 2
static std::shared_ptr<IWII_IPC_HLE_Device> s_fdmap[IPC_MAX_FDS];
static bool s_es_inuse[ES_MAX_COUNT];
static std::shared_ptr<IWII_IPC_HLE_Device> s_es_handles[ES_MAX_COUNT];
using IPCMsgQueue = std::deque<u32>;
static IPCMsgQueue s_request_queue; // ppc -> arm
static IPCMsgQueue s_reply_queue; // arm -> ppc
static IPCMsgQueue s_ack_queue; // arm -> ppc
static CoreTiming::EventType* s_event_enqueue;
static CoreTiming::EventType* s_event_sdio_notify;
static u64 s_last_reply_time;
static constexpr u64 ENQUEUE_REQUEST_FLAG = 0x100000000ULL;
static constexpr u64 ENQUEUE_ACKNOWLEDGEMENT_FLAG = 0x200000000ULL;
static void EnqueueEvent(u64 userdata, s64 cycles_late = 0)
{
if (userdata & ENQUEUE_ACKNOWLEDGEMENT_FLAG)
{
s_ack_queue.push_back(userdata);
}
else if (userdata & ENQUEUE_REQUEST_FLAG)
{
s_request_queue.push_back(userdata);
}
else
{
s_reply_queue.push_back(userdata);
}
Update();
}
static void SDIO_EventNotify_CPUThread(u64 userdata, s64 cycles_late)
{
auto device =
static_cast<CWII_IPC_HLE_Device_sdio_slot0*>(GetDeviceByName("/dev/sdio/slot0").get());
if (device)
device->EventNotify();
}
static u32 num_devices;
template <typename T>
std::shared_ptr<T> AddDevice(const char* device_name)
{
auto device = std::make_shared<T>(num_devices, device_name);
s_device_map[num_devices] = device;
num_devices++;
return device;
}
void Reinit()
{
std::lock_guard<std::mutex> lock(s_device_map_mutex);
_assert_msg_(WII_IPC_HLE, s_device_map.empty(), "Reinit called while already initialized");
CWII_IPC_HLE_Device_es::m_ContentFile = "";
num_devices = 0;
// Build hardware devices
if (!SConfig::GetInstance().m_bt_passthrough_enabled)
AddDevice<CWII_IPC_HLE_Device_usb_oh1_57e_305_emu>("/dev/usb/oh1/57e/305");
else
AddDevice<CWII_IPC_HLE_Device_usb_oh1_57e_305_real>("/dev/usb/oh1/57e/305");
AddDevice<CWII_IPC_HLE_Device_stm_immediate>("/dev/stm/immediate");
AddDevice<CWII_IPC_HLE_Device_stm_eventhook>("/dev/stm/eventhook");
AddDevice<CWII_IPC_HLE_Device_fs>("/dev/fs");
// IOS allows two ES devices at a time
for (u32 j = 0; j < ES_MAX_COUNT; j++)
{
s_es_handles[j] = AddDevice<CWII_IPC_HLE_Device_es>("/dev/es");
s_es_inuse[j] = false;
}
AddDevice<CWII_IPC_HLE_Device_di>("/dev/di");
AddDevice<CWII_IPC_HLE_Device_net_kd_request>("/dev/net/kd/request");
AddDevice<CWII_IPC_HLE_Device_net_kd_time>("/dev/net/kd/time");
AddDevice<CWII_IPC_HLE_Device_net_ncd_manage>("/dev/net/ncd/manage");
AddDevice<CWII_IPC_HLE_Device_net_wd_command>("/dev/net/wd/command");
AddDevice<CWII_IPC_HLE_Device_net_ip_top>("/dev/net/ip/top");
AddDevice<CWII_IPC_HLE_Device_net_ssl>("/dev/net/ssl");
AddDevice<CWII_IPC_HLE_Device_usb_kbd>("/dev/usb/kbd");
AddDevice<CWII_IPC_HLE_Device_usb_ven>("/dev/usb/ven");
AddDevice<CWII_IPC_HLE_Device_sdio_slot0>("/dev/sdio/slot0");
AddDevice<CWII_IPC_HLE_Device_stub>("/dev/sdio/slot1");
#if defined(__LIBUSB__)
AddDevice<CWII_IPC_HLE_Device_hid>("/dev/usb/hid");
#else
AddDevice<CWII_IPC_HLE_Device_stub>("/dev/usb/hid");
#endif
AddDevice<CWII_IPC_HLE_Device_stub>("/dev/usb/oh1");
AddDevice<IWII_IPC_HLE_Device>("_Unimplemented_Device_");
}
void Init()
{
Reinit();
s_event_enqueue = CoreTiming::RegisterEvent("IPCEvent", EnqueueEvent);
s_event_sdio_notify = CoreTiming::RegisterEvent("SDIO_EventNotify", SDIO_EventNotify_CPUThread);
}
void Reset(bool hard)
{
CoreTiming::RemoveAllEvents(s_event_enqueue);
for (auto& dev : s_fdmap)
{
if (dev && !dev->IsHardware())
{
// close all files and delete their resources
dev->Close(0, true);
}
dev.reset();
}
for (bool& in_use : s_es_inuse)
{
in_use = false;
}
std::lock_guard<std::mutex> lock(s_device_map_mutex);
for (const auto& entry : s_device_map)
{
if (entry.second)
{
// Force close
entry.second->Close(0, true);
}
}
if (hard)
{
s_device_map.clear();
}
s_request_queue.clear();
s_reply_queue.clear();
s_last_reply_time = 0;
}
void Shutdown()
{
Reset(true);
}
void SetDefaultContentFile(const std::string& file_name)
{
std::lock_guard<std::mutex> lock(s_device_map_mutex);
for (const auto& entry : s_device_map)
{
if (entry.second && entry.second->GetDeviceName().find("/dev/es") == 0)
{
static_cast<CWII_IPC_HLE_Device_es*>(entry.second.get())->LoadWAD(file_name);
}
}
}
void ES_DIVerify(const std::vector<u8>& tmd)
{
CWII_IPC_HLE_Device_es::ES_DIVerify(tmd);
}
void SDIO_EventNotify()
{
// TODO: Potential race condition: If IsRunning() becomes false after
// it's checked, an event may be scheduled after CoreTiming shuts down.
if (SConfig::GetInstance().bWii && Core::IsRunning())
CoreTiming::ScheduleEvent(0, s_event_sdio_notify, 0, CoreTiming::FromThread::NON_CPU);
}
static int GetFreeDeviceID()
{
for (u32 i = 0; i < IPC_MAX_FDS; i++)
{
if (s_fdmap[i] == nullptr)
{
return i;
}
}
return -1;
}
std::shared_ptr<IWII_IPC_HLE_Device> GetDeviceByName(const std::string& device_name)
{
std::lock_guard<std::mutex> lock(s_device_map_mutex);
for (const auto& entry : s_device_map)
{
if (entry.second && entry.second->GetDeviceName() == device_name)
{
return entry.second;
}
}
return nullptr;
}
std::shared_ptr<IWII_IPC_HLE_Device> AccessDeviceByID(u32 id)
{
std::lock_guard<std::mutex> lock(s_device_map_mutex);
if (s_device_map.find(id) != s_device_map.end())
{
return s_device_map[id];
}
return nullptr;
}
// This is called from ExecuteCommand() COMMAND_OPEN_DEVICE
std::shared_ptr<IWII_IPC_HLE_Device> CreateFileIO(u32 device_id, const std::string& device_name)
{
// scan device name and create the right one
INFO_LOG(WII_IPC_FILEIO, "IOP: Create FileIO %s", device_name.c_str());
return std::make_shared<CWII_IPC_HLE_Device_FileIO>(device_id, device_name);
}
void DoState(PointerWrap& p)
{
p.Do(s_request_queue);
p.Do(s_reply_queue);
p.Do(s_last_reply_time);
// We need to make sure all file handles are closed so WII_IPC_Devices_fs::DoState can
// successfully save or re-create /tmp
for (auto& descriptor : s_fdmap)
{
if (descriptor)
descriptor->PrepareForState(p.GetMode());
}
for (const auto& entry : s_device_map)
{
if (entry.second->IsHardware())
{
entry.second->DoState(p);
}
}
if (p.GetMode() == PointerWrap::MODE_READ)
{
for (u32 i = 0; i < IPC_MAX_FDS; i++)
{
u32 exists = 0;
p.Do(exists);
if (exists)
{
u32 isHw = 0;
p.Do(isHw);
if (isHw)
{
u32 hwId = 0;
p.Do(hwId);
s_fdmap[i] = AccessDeviceByID(hwId);
}
else
{
s_fdmap[i] = std::make_shared<CWII_IPC_HLE_Device_FileIO>(i, "");
s_fdmap[i]->DoState(p);
}
}
}
for (u32 i = 0; i < ES_MAX_COUNT; i++)
{
p.Do(s_es_inuse[i]);
u32 handleID = s_es_handles[i]->GetDeviceID();
p.Do(handleID);
s_es_handles[i] = AccessDeviceByID(handleID);
}
}
else
{
for (auto& descriptor : s_fdmap)
{
u32 exists = descriptor ? 1 : 0;
p.Do(exists);
if (exists)
{
u32 isHw = descriptor->IsHardware() ? 1 : 0;
p.Do(isHw);
if (isHw)
{
u32 hwId = descriptor->GetDeviceID();
p.Do(hwId);
}
else
{
descriptor->DoState(p);
}
}
}
for (u32 i = 0; i < ES_MAX_COUNT; i++)
{
p.Do(s_es_inuse[i]);
u32 handleID = s_es_handles[i]->GetDeviceID();
p.Do(handleID);
}
}
}
void ExecuteCommand(u32 address)
{
IPCCommandResult result = IWII_IPC_HLE_Device::GetNoReply();
IPCCommandType Command = static_cast<IPCCommandType>(Memory::Read_U32(address));
s32 DeviceID = Memory::Read_U32(address + 8);
std::shared_ptr<IWII_IPC_HLE_Device> device =
(DeviceID >= 0 && DeviceID < IPC_MAX_FDS) ? s_fdmap[DeviceID] : nullptr;
DEBUG_LOG(WII_IPC_HLE, "-->> Execute Command Address: 0x%08x (code: %x, device: %x) %p", address,
Command, DeviceID, device.get());
switch (Command)
{
case IPC_CMD_OPEN:
{
u32 Mode = Memory::Read_U32(address + 0x10);
DeviceID = GetFreeDeviceID();
std::string device_name = Memory::GetString(Memory::Read_U32(address + 0xC));
INFO_LOG(WII_IPC_HLE, "Trying to open %s as %d", device_name.c_str(), DeviceID);
if (DeviceID >= 0)
{
if (device_name.find("/dev/es") == 0)
{
u32 j;
for (j = 0; j < ES_MAX_COUNT; j++)
{
if (!s_es_inuse[j])
{
s_es_inuse[j] = true;
s_fdmap[DeviceID] = s_es_handles[j];
result = s_es_handles[j]->Open(address, Mode);
Memory::Write_U32(DeviceID, address + 4);
break;
}
}
if (j == ES_MAX_COUNT)
{
Memory::Write_U32(FS_EESEXHAUSTED, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
}
else if (device_name.find("/dev/") == 0)
{
device = GetDeviceByName(device_name);
if (device)
{
s_fdmap[DeviceID] = device;
result = device->Open(address, Mode);
DEBUG_LOG(WII_IPC_FILEIO, "IOP: ReOpen (Device=%s, DeviceID=%08x, Mode=%i)",
device->GetDeviceName().c_str(), DeviceID, Mode);
Memory::Write_U32(DeviceID, address + 4);
}
else
{
WARN_LOG(WII_IPC_HLE, "Unimplemented device: %s", device_name.c_str());
Memory::Write_U32(FS_ENOENT, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
}
else
{
device = CreateFileIO(DeviceID, device_name);
result = device->Open(address, Mode);
DEBUG_LOG(WII_IPC_FILEIO, "IOP: Open File (Device=%s, ID=%08x, Mode=%i)",
device->GetDeviceName().c_str(), DeviceID, Mode);
if (Memory::Read_U32(address + 4) == (u32)DeviceID)
{
s_fdmap[DeviceID] = device;
}
}
}
else
{
Memory::Write_U32(FS_EFDEXHAUSTED, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
break;
}
case IPC_CMD_CLOSE:
{
if (device)
{
result = device->Close(address);
for (u32 j = 0; j < ES_MAX_COUNT; j++)
{
if (s_es_handles[j] == s_fdmap[DeviceID])
{
s_es_inuse[j] = false;
}
}
s_fdmap[DeviceID].reset();
}
else
{
Memory::Write_U32(FS_EINVAL, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
break;
}
case IPC_CMD_READ:
{
if (device)
{
result = device->Read(address);
}
else
{
Memory::Write_U32(FS_EINVAL, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
break;
}
case IPC_CMD_WRITE:
{
if (device)
{
result = device->Write(address);
}
else
{
Memory::Write_U32(FS_EINVAL, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
break;
}
case IPC_CMD_SEEK:
{
if (device)
{
result = device->Seek(address);
}
else
{
Memory::Write_U32(FS_EINVAL, address + 4);
result = IWII_IPC_HLE_Device::GetDefaultReply();
}
break;
}
case IPC_CMD_IOCTL:
{
if (device)
{
result = device->IOCtl(address);
}
break;
}
case IPC_CMD_IOCTLV:
{
if (device)
{
result = device->IOCtlV(address);
}
break;
}
default:
{
_dbg_assert_msg_(WII_IPC_HLE, 0, "Unknown IPC Command %i (0x%08x)", Command, address);
break;
}
}
// Ensure replies happen in order
const s64 ticks_until_last_reply = s_last_reply_time - CoreTiming::GetTicks();
if (ticks_until_last_reply > 0)
result.reply_delay_ticks += ticks_until_last_reply;
s_last_reply_time = CoreTiming::GetTicks() + result.reply_delay_ticks;
if (result.send_reply)
{
// The original hardware overwrites the command type with the async reply type.
Memory::Write_U32(IPC_REP_ASYNC, address);
// IOS also seems to write back the command that was responded to in the FD field.
Memory::Write_U32(Command, address + 8);
// Generate a reply to the IPC command
EnqueueReply(address, (int)result.reply_delay_ticks);
}
}
// Happens AS SOON AS IPC gets a new pointer!
void EnqueueRequest(u32 address)
{
CoreTiming::ScheduleEvent(1000, s_event_enqueue, address | ENQUEUE_REQUEST_FLAG);
}
// Called when IOS module has some reply
// NOTE: Only call this if you have correctly handled
// CommandAddress+0 and CommandAddress+8.
// Please search for examples of this being called elsewhere.
void EnqueueReply(u32 address, int cycles_in_future, CoreTiming::FromThread from)
{
CoreTiming::ScheduleEvent(cycles_in_future, s_event_enqueue, address, from);
}
void EnqueueCommandAcknowledgement(u32 address, int cycles_in_future)
{
CoreTiming::ScheduleEvent(cycles_in_future, s_event_enqueue,
address | ENQUEUE_ACKNOWLEDGEMENT_FLAG);
}
// This is called every IPC_HLE_PERIOD from SystemTimers.cpp
// Takes care of routing ipc <-> ipc HLE
void Update()
{
if (!WII_IPCInterface::IsReady())
return;
if (s_request_queue.size())
{
WII_IPCInterface::GenerateAck(s_request_queue.front());
DEBUG_LOG(WII_IPC_HLE, "||-- Acknowledge IPC Request @ 0x%08x", s_request_queue.front());
u32 command = s_request_queue.front();
s_request_queue.pop_front();
ExecuteCommand(command);
return;
}
if (s_reply_queue.size())
{
WII_IPCInterface::GenerateReply(s_reply_queue.front());
DEBUG_LOG(WII_IPC_HLE, "<<-- Reply to IPC Request @ 0x%08x", s_reply_queue.front());
s_reply_queue.pop_front();
return;
}
if (s_ack_queue.size())
{
WII_IPCInterface::GenerateAck(s_ack_queue.front());
WARN_LOG(WII_IPC_HLE, "<<-- Double-ack to IPC Request @ 0x%08x", s_ack_queue.front());
s_ack_queue.pop_front();
return;
}
}
void UpdateDevices()
{
// Check if a hardware device must be updated
for (const auto& entry : s_device_map)
{
if (entry.second->IsOpened())
{
entry.second->Update();
}
}
}
} // end of namespace WII_IPC_HLE_Interface
// TODO: create WII_IPC_HLE_Device.cpp ?
void IWII_IPC_HLE_Device::DoStateShared(PointerWrap& p)
{
p.Do(m_Name);
p.Do(m_DeviceID);
p.Do(m_Hardware);
p.Do(m_Active);
}