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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/swap.h"
namespace IPC {
/// Size of the command buffer area, in 32-bit words.
constexpr std::size_t COMMAND_BUFFER_LENGTH = 0x100 / sizeof(u32);
enum class ControlCommand : u32 {
ConvertSessionToDomain = 0,
ConvertDomainToSession = 1,
DuplicateSession = 2,
QueryPointerBufferSize = 3,
DuplicateSessionEx = 4,
Unspecified,
};
enum class CommandType : u32 {
Invalid = 0,
LegacyRequest = 1,
Close = 2,
LegacyControl = 3,
Request = 4,
Control = 5,
RequestWithContext = 6,
ControlWithContext = 7,
TIPC_Close = 15,
TIPC_CommandRegion = 16, // Start of TIPC commands, this is an offset.
};
struct CommandHeader {
union {
u32_le raw_low;
BitField<0, 16, CommandType> type;
BitField<16, 4, u32> num_buf_x_descriptors;
BitField<20, 4, u32> num_buf_a_descriptors;
BitField<24, 4, u32> num_buf_b_descriptors;
BitField<28, 4, u32> num_buf_w_descriptors;
};
enum class BufferDescriptorCFlag : u32 {
Disabled = 0,
InlineDescriptor = 1,
OneDescriptor = 2,
};
union {
u32_le raw_high;
BitField<0, 10, u32> data_size;
BitField<10, 4, BufferDescriptorCFlag> buf_c_descriptor_flags;
BitField<31, 1, u32> enable_handle_descriptor;
};
bool IsTipc() const {
return type.Value() >= CommandType::TIPC_CommandRegion;
}
bool IsCloseCommand() const {
switch (type.Value()) {
case CommandType::Close:
case CommandType::TIPC_Close:
return true;
default:
return false;
}
}
};
static_assert(sizeof(CommandHeader) == 8, "CommandHeader size is incorrect");
union HandleDescriptorHeader {
u32_le raw_high;
BitField<0, 1, u32> send_current_pid;
BitField<1, 4, u32> num_handles_to_copy;
BitField<5, 4, u32> num_handles_to_move;
};
static_assert(sizeof(HandleDescriptorHeader) == 4, "HandleDescriptorHeader size is incorrect");
struct BufferDescriptorX {
union {
BitField<0, 6, u32> counter_bits_0_5;
BitField<6, 3, u32> address_bits_36_38;
BitField<9, 3, u32> counter_bits_9_11;
BitField<12, 4, u32> address_bits_32_35;
BitField<16, 16, u32> size;
};
u32_le address_bits_0_31;
u32_le Counter() const {
u32_le counter{counter_bits_0_5};
counter |= counter_bits_9_11 << 9;
return counter;
}
VAddr Address() const {
VAddr address{address_bits_0_31};
address |= static_cast<VAddr>(address_bits_32_35) << 32;
address |= static_cast<VAddr>(address_bits_36_38) << 36;
return address;
}
u64 Size() const {
return static_cast<u64>(size);
}
};
static_assert(sizeof(BufferDescriptorX) == 8, "BufferDescriptorX size is incorrect");
struct BufferDescriptorABW {
u32_le size_bits_0_31;
u32_le address_bits_0_31;
union {
BitField<0, 2, u32> flags;
BitField<2, 3, u32> address_bits_36_38;
BitField<24, 4, u32> size_bits_32_35;
BitField<28, 4, u32> address_bits_32_35;
};
VAddr Address() const {
VAddr address{address_bits_0_31};
address |= static_cast<VAddr>(address_bits_32_35) << 32;
address |= static_cast<VAddr>(address_bits_36_38) << 36;
return address;
}
u64 Size() const {
u64 size{size_bits_0_31};
size |= static_cast<u64>(size_bits_32_35) << 32;
return size;
}
};
static_assert(sizeof(BufferDescriptorABW) == 12, "BufferDescriptorABW size is incorrect");
struct BufferDescriptorC {
u32_le address_bits_0_31;
union {
BitField<0, 16, u32> address_bits_32_47;
BitField<16, 16, u32> size;
};
VAddr Address() const {
VAddr address{address_bits_0_31};
address |= static_cast<VAddr>(address_bits_32_47) << 32;
return address;
}
u64 Size() const {
return static_cast<u64>(size);
}
};
static_assert(sizeof(BufferDescriptorC) == 8, "BufferDescriptorC size is incorrect");
struct DataPayloadHeader {
u32_le magic;
INSERT_PADDING_WORDS_NOINIT(1);
};
static_assert(sizeof(DataPayloadHeader) == 8, "DataPayloadHeader size is incorrect");
struct DomainMessageHeader {
enum class CommandType : u32_le {
SendMessage = 1,
CloseVirtualHandle = 2,
};
union {
// Used when responding to an IPC request, Server -> Client.
struct {
u32_le num_objects;
INSERT_PADDING_WORDS_NOINIT(3);
};
// Used when performing an IPC request, Client -> Server.
struct {
union {
BitField<0, 8, CommandType> command;
BitField<8, 8, u32> input_object_count;
BitField<16, 16, u32> size;
};
u32_le object_id;
INSERT_PADDING_WORDS_NOINIT(2);
};
std::array<u32, 4> raw;
};
};
static_assert(sizeof(DomainMessageHeader) == 16, "DomainMessageHeader size is incorrect");
} // namespace IPC
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