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Device.cpp
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Device.cpp
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// Copyright 2016 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "Core/IOS/Device.h"
#include <algorithm>
#include <map>
#include "Common/Assert.h"
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "Core/HW/Memmap.h"
#include "Core/HW/SystemTimers.h"
#include "Core/IOS/IOS.h"
#include "Core/System.h"
namespace IOS::HLE
{
Request::Request(Core::System& system, const u32 address_) : address(address_)
{
auto& memory = system.GetMemory();
command = static_cast<IPCCommandType>(memory.Read_U32(address));
fd = memory.Read_U32(address + 8);
}
OpenRequest::OpenRequest(Core::System& system, const u32 address_) : Request(system, address_)
{
auto& memory = system.GetMemory();
path = memory.GetString(memory.Read_U32(address + 0xc));
flags = static_cast<OpenMode>(memory.Read_U32(address + 0x10));
const EmulationKernel* ios = system.GetIOS();
if (ios)
{
uid = ios->GetUidForPPC();
gid = ios->GetGidForPPC();
}
}
ReadWriteRequest::ReadWriteRequest(Core::System& system, const u32 address_)
: Request(system, address_)
{
auto& memory = system.GetMemory();
buffer = memory.Read_U32(address + 0xc);
size = memory.Read_U32(address + 0x10);
}
SeekRequest::SeekRequest(Core::System& system, const u32 address_) : Request(system, address_)
{
auto& memory = system.GetMemory();
offset = memory.Read_U32(address + 0xc);
mode = static_cast<SeekMode>(memory.Read_U32(address + 0x10));
}
IOCtlRequest::IOCtlRequest(Core::System& system, const u32 address_) : Request(system, address_)
{
auto& memory = system.GetMemory();
request = memory.Read_U32(address + 0x0c);
buffer_in = memory.Read_U32(address + 0x10);
buffer_in_size = memory.Read_U32(address + 0x14);
buffer_out = memory.Read_U32(address + 0x18);
buffer_out_size = memory.Read_U32(address + 0x1c);
}
IOCtlVRequest::IOCtlVRequest(Core::System& system, const u32 address_) : Request(system, address_)
{
auto& memory = system.GetMemory();
request = memory.Read_U32(address + 0x0c);
const u32 in_number = memory.Read_U32(address + 0x10);
const u32 out_number = memory.Read_U32(address + 0x14);
const u32 vectors_base = memory.Read_U32(address + 0x18); // address to vectors
u32 offset = 0;
for (size_t i = 0; i < (in_number + out_number); ++i)
{
IOVector vector;
vector.address = memory.Read_U32(vectors_base + offset);
vector.size = memory.Read_U32(vectors_base + offset + 4);
offset += 8;
if (i < in_number)
in_vectors.emplace_back(vector);
else
io_vectors.emplace_back(vector);
}
}
const IOCtlVRequest::IOVector* IOCtlVRequest::GetVector(size_t index) const
{
if (index >= in_vectors.size() + io_vectors.size())
return nullptr;
if (index < in_vectors.size())
return &in_vectors[index];
return &io_vectors[index - in_vectors.size()];
}
bool IOCtlVRequest::HasNumberOfValidVectors(const size_t in_count, const size_t io_count) const
{
if (in_vectors.size() != in_count || io_vectors.size() != io_count)
return false;
auto IsValidVector = [](const auto& vector) { return vector.size == 0 || vector.address != 0; };
return std::all_of(in_vectors.begin(), in_vectors.end(), IsValidVector) &&
std::all_of(io_vectors.begin(), io_vectors.end(), IsValidVector);
}
void IOCtlRequest::Log(std::string_view device_name, Common::Log::LogType type,
Common::Log::LogLevel verbosity) const
{
GENERIC_LOG_FMT(type, verbosity, "{} (fd {}) - IOCtl {:#x} (in_size={:#x}, out_size={:#x})",
device_name, fd, request, buffer_in_size, buffer_out_size);
}
void IOCtlRequest::Dump(Core::System& system, const std::string& description,
Common::Log::LogType type, Common::Log::LogLevel level) const
{
auto& memory = system.GetMemory();
Log("===== " + description, type, level);
GENERIC_LOG_FMT(type, level, "In buffer\n{}",
HexDump(memory.GetPointerForRange(buffer_in, buffer_in_size), buffer_in_size));
GENERIC_LOG_FMT(type, level, "Out buffer\n{}",
HexDump(memory.GetPointerForRange(buffer_out, buffer_out_size), buffer_out_size));
}
void IOCtlRequest::DumpUnknown(Core::System& system, const std::string& description,
Common::Log::LogType type, Common::Log::LogLevel level) const
{
Dump(system, "Unknown IOCtl - " + description, type, level);
}
void IOCtlVRequest::Dump(Core::System& system, std::string_view description,
Common::Log::LogType type, Common::Log::LogLevel level) const
{
auto& memory = system.GetMemory();
GENERIC_LOG_FMT(type, level, "===== {} (fd {}) - IOCtlV {:#x} ({} in, {} io)", description, fd,
request, in_vectors.size(), io_vectors.size());
size_t i = 0;
for (const auto& vector : in_vectors)
{
GENERIC_LOG_FMT(type, level, "in[{}] (size={:#x}):\n{}", i++, vector.size,
HexDump(memory.GetPointerForRange(vector.address, vector.size), vector.size));
}
i = 0;
for (const auto& vector : io_vectors)
GENERIC_LOG_FMT(type, level, "io[{}] (size={:#x})", i++, vector.size);
}
void IOCtlVRequest::DumpUnknown(Core::System& system, const std::string& description,
Common::Log::LogType type, Common::Log::LogLevel level) const
{
Dump(system, "Unknown IOCtlV - " + description, type, level);
}
Device::Device(Kernel& ios, const std::string& device_name, const DeviceType type)
: m_ios(ios), m_name(device_name), m_device_type(type)
{
}
void Device::DoState(PointerWrap& p)
{
p.Do(m_name);
p.Do(m_device_type);
p.Do(m_is_active);
}
std::optional<IPCReply> Device::Open(const OpenRequest& request)
{
m_is_active = true;
return IPCReply{IPC_SUCCESS};
}
std::optional<IPCReply> Device::Close(u32 fd)
{
m_is_active = false;
return IPCReply{IPC_SUCCESS};
}
std::optional<IPCReply> Device::Unsupported(const Request& request)
{
static const std::map<IPCCommandType, std::string_view> names{{
{IPC_CMD_READ, "Read"},
{IPC_CMD_WRITE, "Write"},
{IPC_CMD_SEEK, "Seek"},
{IPC_CMD_IOCTL, "IOCtl"},
{IPC_CMD_IOCTLV, "IOCtlV"},
}};
WARN_LOG_FMT(IOS, "{} does not support {}()", m_name, names.at(request.command));
return IPCReply{IPC_EINVAL};
}
} // namespace IOS::HLE