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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include "common/alignment.h"
#include "core/hle/ipc.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/service/csnd_snd.h"
#include "core/memory.h"
namespace Service {
namespace CSND {
struct Type0Command {
// command id and next command offset
u32 command_id;
u32 finished;
u32 flags;
u8 parameters[20];
};
static_assert(sizeof(Type0Command) == 0x20, "Type0Command structure size is wrong");
static Kernel::SharedPtr<Kernel::SharedMemory> shared_memory = nullptr;
static Kernel::SharedPtr<Kernel::Mutex> mutex = nullptr;
/**
* CSND_SND::Initialize service function
* Inputs:
* 0 : Header Code[0x00010140]
* 1 : Shared memory block size, for mem-block creation
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Handle-list header
* 3 : Mutex handle
* 4 : Shared memory block handle
*/
static void Initialize(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 size = Common::AlignUp(cmd_buff[1], Memory::PAGE_SIZE);
using Kernel::MemoryPermission;
shared_memory = Kernel::SharedMemory::Create(nullptr, size, MemoryPermission::ReadWrite,
MemoryPermission::ReadWrite, 0,
Kernel::MemoryRegion::BASE, "CSND:SharedMemory");
mutex = Kernel::Mutex::Create(false, "CSND:mutex");
cmd_buff[1] = RESULT_SUCCESS.raw;
cmd_buff[2] = IPC::CopyHandleDesc(2);
cmd_buff[3] = Kernel::g_handle_table.Create(mutex).Unwrap();
cmd_buff[4] = Kernel::g_handle_table.Create(shared_memory).Unwrap();
LOG_WARNING(Service_CSND, "(STUBBED) called");
}
/**
* CSND_SND::Shutdown service function
* Inputs:
* 0 : Header Code[0x00020000]
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void Shutdown(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
shared_memory = nullptr;
mutex = nullptr;
cmd_buff[1] = RESULT_SUCCESS.raw;
LOG_WARNING(Service_CSND, "(STUBBED) called");
}
/**
* CSND_SND::ExecuteCommands service function
* Inputs:
* 0 : Header Code[0x00030040]
* 1 : Command offset in shared memory.
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Available channel bit mask
*/
static void ExecuteCommands(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
if (shared_memory == nullptr) {
cmd_buff[1] = 1;
LOG_ERROR(Service_CSND, "called, shared memory not allocated");
return;
}
VAddr addr = cmd_buff[1];
u8* ptr = shared_memory->GetPointer(addr);
Type0Command command;
std::memcpy(&command, ptr, sizeof(Type0Command));
command.finished |= 1;
std::memcpy(ptr, &command, sizeof(Type0Command));
cmd_buff[1] = RESULT_SUCCESS.raw;
LOG_WARNING(Service_CSND, "(STUBBED) called, addr=0x%08X", addr);
}
/**
* CSND_SND::AcquireSoundChannels service function
* Inputs:
* 0 : Header Code[0x00050000]
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Available channel bit mask
*/
static void AcquireSoundChannels(Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[1] = RESULT_SUCCESS.raw;
cmd_buff[2] = 0xFFFFFF00;
LOG_WARNING(Service_CSND, "(STUBBED) called");
}
const Interface::FunctionInfo FunctionTable[] = {
{0x00010140, Initialize, "Initialize"},
{0x00020000, Shutdown, "Shutdown"},
{0x00030040, ExecuteCommands, "ExecuteCommands"},
{0x00040080, nullptr, "ExecuteType1Commands"},
{0x00050000, AcquireSoundChannels, "AcquireSoundChannels"},
{0x00060000, nullptr, "ReleaseSoundChannels"},
{0x00070000, nullptr, "AcquireCaptureDevice"},
{0x00080040, nullptr, "ReleaseCaptureDevice"},
{0x00090082, nullptr, "FlushDataCache"},
{0x000A0082, nullptr, "StoreDataCache"},
{0x000B0082, nullptr, "InvalidateDataCache"},
{0x000C0000, nullptr, "Reset"},
};
CSND_SND::CSND_SND() {
Register(FunctionTable);
}
} // namespace CSND
} // namespace Service
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