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IPC Cleanup: Remove 3DS-specific code and translate copy, move and domain objects in IPC requests.

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Popping objects from the buffer is still not implemented.
This commit is contained in:
Subv 2018-01-07 01:50:55 -05:00 • committed by bunnei
parent b0ceb4df70
commit 0368324f79
8 changed files with 116 additions and 403 deletions
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129
src/core/hle/ipc.h
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@ -143,120 +143,25 @@ struct DataPayloadHeader {
};
static_assert(sizeof(DataPayloadHeader) == 8, "DataPayloadRequest size is incorrect");
struct DomainRequestMessageHeader {
struct DomainMessageHeader {
union {
BitField<0, 8, u32_le> command;
BitField<16, 16, u32_le> size;
// Used when responding to an IPC request, Server -> Client.
struct {
u32_le num_objects;
INSERT_PADDING_WORDS(3);
};
// Used when performing an IPC request, Client -> Server.
struct {
union {
BitField<0, 8, u32_le> command;
BitField<16, 16, u32_le> size;
};
u32_le object_id;
INSERT_PADDING_WORDS(2);
};
};
u32_le object_id;
INSERT_PADDING_WORDS(2);
};
static_assert(sizeof(DomainRequestMessageHeader) == 16, "DomainRequestMessageHeader size is incorrect");
struct DomainResponseMessageHeader {
u32_le num_objects;
INSERT_PADDING_WORDS(3);
};
static_assert(sizeof(DomainResponseMessageHeader) == 16, "DomainResponseMessageHeader size is incorrect");
enum DescriptorType : u32 {
// Buffer related desciptors types (mask : 0x0F)
StaticBuffer = 0x02,
PXIBuffer = 0x04,
MappedBuffer = 0x08,
// Handle related descriptors types (mask : 0x30, but need to check for buffer related
// descriptors first )
CopyHandle = 0x00,
MoveHandle = 0x10,
CallingPid = 0x20,
};
constexpr u32 MoveHandleDesc(u32 num_handles = 1) {
return MoveHandle | ((num_handles - 1) << 26);
}
constexpr u32 CopyHandleDesc(u32 num_handles = 1) {
return CopyHandle | ((num_handles - 1) << 26);
}
constexpr u32 CallingPidDesc() {
return CallingPid;
}
constexpr bool IsHandleDescriptor(u32 descriptor) {
return (descriptor & 0xF) == 0x0;
}
constexpr u32 HandleNumberFromDesc(u32 handle_descriptor) {
return (handle_descriptor >> 26) + 1;
}
union StaticBufferDescInfo {
u32 raw;
BitField<0, 4, u32> descriptor_type;
BitField<10, 4, u32> buffer_id;
BitField<14, 18, u32> size;
};
inline u32 StaticBufferDesc(size_t size, u8 buffer_id) {
StaticBufferDescInfo info{};
info.descriptor_type.Assign(StaticBuffer);
info.buffer_id.Assign(buffer_id);
info.size.Assign(static_cast<u32>(size));
return info.raw;
}
/**
* @brief Creates a header describing a buffer to be sent over PXI.
* @param size Size of the buffer. Max 0x00FFFFFF.
* @param buffer_id The Id of the buffer. Max 0xF.
* @param is_read_only true if the buffer is read-only. If false, the buffer is considered to have
* read-write access.
* @return The created PXI buffer header.
*
* The next value is a phys-address of a table located in the BASE memregion.
*/
inline u32 PXIBufferDesc(u32 size, unsigned buffer_id, bool is_read_only) {
u32 type = PXIBuffer;
if (is_read_only)
type |= 0x2;
return type | (size << 8) | ((buffer_id & 0xF) << 4);
}
enum MappedBufferPermissions : u32 {
R = 1,
W = 2,
RW = R | W,
};
union MappedBufferDescInfo {
u32 raw;
BitField<0, 4, u32> flags;
BitField<1, 2, MappedBufferPermissions> perms;
BitField<4, 28, u32> size;
};
inline u32 MappedBufferDesc(size_t size, MappedBufferPermissions perms) {
MappedBufferDescInfo info{};
info.flags.Assign(MappedBuffer);
info.perms.Assign(perms);
info.size.Assign(static_cast<u32>(size));
return info.raw;
}
inline DescriptorType GetDescriptorType(u32 descriptor) {
// Note: Those checks must be done in this order
if (IsHandleDescriptor(descriptor))
return (DescriptorType)(descriptor & 0x30);
// handle the fact that the following descriptors can have rights
if (descriptor & MappedBuffer)
return MappedBuffer;
if (descriptor & PXIBuffer)
return PXIBuffer;
return StaticBuffer;
}
static_assert(sizeof(DomainMessageHeader) == 16, "DomainMessageHeader size is incorrect");
} // namespace IPC