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[IR] Implement shmem header

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wheremyfoodat 2023-07-13 14:24:37 +03:00
parent be801e544d
commit 03ae0d02d8
2 changed files with 71 additions and 1 deletions
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19
include/services/ir_user.hpp
View file

@ -24,6 +24,25 @@ class IRUserService {
void requireConnection(u32 messagePointer);
std::optional<Handle> connectionStatusEvent = std::nullopt;
std::optional<MemoryBlock> sharedMemory = std::nullopt;
bool connectedDevice = false;
// Header of the IR shared memory containing various bits of info
// https://www.3dbrew.org/wiki/IRUSER_Shared_Memory
struct SharedMemoryStatus {
u32 latestReceiveError;
u32 latestSharedError;
u8 connectionStatus;
u8 connectionAttemptStatus;
u8 connectionRole;
u8 machineID;
u8 isConnected;
u8 networkID;
u8 isInitialized; // https://github.com/citra-emu/citra/blob/c10ffda91feb3476a861c47fb38641c1007b9d33/src/core/hle/service/ir/ir_user.cpp#L41
u8 unk1;
};
static_assert(sizeof(SharedMemoryStatus) == 16);
public:
IRUserService(Memory& mem, Kernel& kernel) : mem(mem), kernel(kernel) {}

53
src/core/services/ir_user.cpp
View file

@ -1,5 +1,7 @@
#include "services/ir_user.hpp"
#include <cstddef>
#include "ipc.hpp"
#include "kernel.hpp"
@ -13,7 +15,11 @@ namespace IRUserCommands {
};
}
void IRUserService::reset() { connectionStatusEvent = std::nullopt; }
void IRUserService::reset() {
connectionStatusEvent = std::nullopt;
sharedMemory = std::nullopt;
connectedDevice = false;
}
void IRUserService::handleSyncRequest(u32 messagePointer) {
const u32 command = mem.read32(messagePointer);
@ -40,6 +46,14 @@ void IRUserService::initializeIrnopShared(u32 messagePointer) {
log("IR:USER: InitializeIrnopShared (shared mem size = %08X, sharedMemHandle = %X) (stubbed)\n", sharedMemSize, sharedMemHandle);
Helpers::warn("Game is initializing IR:USER. If it explodes, this is probably why");
KernelObject* object = kernel.getObject(sharedMemHandle, KernelObjectType::MemoryBlock);
if (object == nullptr) {
Helpers::panic("IR::InitializeIrnopShared: Shared memory object does not exist");
}
MemoryBlock* memoryBlock = object->getData<MemoryBlock>();
sharedMemory = *memoryBlock;
mem.write32(messagePointer, IPC::responseHeader(0x18, 1, 0));
mem.write32(messagePointer + 4, Result::Success);
}
@ -47,6 +61,13 @@ void IRUserService::initializeIrnopShared(u32 messagePointer) {
void IRUserService::finalizeIrnop(u32 messagePointer) {
log("IR:USER: FinalizeIrnop\n");
if (connectedDevice) {
connectedDevice = false;
// This should also disconnect CirclePad Pro?
}
sharedMemory = std::nullopt;
// This should disconnect any connected device de-initialize the shared memory
mem.write32(messagePointer, IPC::responseHeader(0x2, 1, 0));
mem.write32(messagePointer + 4, Result::Success);
@ -69,12 +90,42 @@ void IRUserService::requireConnection(u32 messagePointer) {
const u8 deviceID = mem.read8(messagePointer + 4);
log("IR:USER: RequireConnection (device: %d)\n", deviceID);
// Reference: https://github.com/citra-emu/citra/blob/c10ffda91feb3476a861c47fb38641c1007b9d33/src/core/hle/service/ir/ir_user.cpp#L306
if (sharedMemory.has_value()) {
u32 sharedMemAddress = sharedMemory.value().addr;
// What even is this device meant to be.
if (deviceID == 1) {
mem.write8(sharedMemAddress + offsetof(SharedMemoryStatus, connectionStatus), 2);
mem.write8(sharedMemAddress + offsetof(SharedMemoryStatus, connectionRole), 2);
mem.write8(sharedMemAddress + offsetof(SharedMemoryStatus, isConnected), 1);
connectedDevice = true;
if (connectionStatusEvent.has_value()) {
kernel.signalEvent(connectionStatusEvent.value());
}
} else {
log("IR:USER: Unknown device %d\n", deviceID);
mem.write8(sharedMemAddress + offsetof(SharedMemoryStatus, connectionStatus), 1);
mem.write8(sharedMemAddress + offsetof(SharedMemoryStatus, connectionAttemptStatus), 2);
}
}
mem.write32(messagePointer, IPC::responseHeader(0x6, 1, 0));
mem.write32(messagePointer + 4, Result::Success);
}
void IRUserService::disconnect(u32 messagePointer) {
log("IR:USER: Disconnect\n");
// If there's a connected device, disconnect it and trigger the status event
if (connectedDevice) {
connectedDevice = false;
if (connectionStatusEvent.has_value()) {
kernel.signalEvent(connectionStatusEvent.value());
}
}
mem.write32(messagePointer, IPC::responseHeader(0x9, 1, 0));
mem.write32(messagePointer + 4, Result::Success);
}