112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <vector>
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#include "core/mem_map.h"
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#include "core/hle/hle.h"
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#include "core/hle/syscall.h"
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#include "core/hle/service/service.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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namespace HLE {
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static std::vector<ModuleDef> g_module_db;
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u8* g_command_buffer = NULL; ///< Command buffer used for sharing between appcore and syscore
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// Read from memory used by CTROS HLE functions
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template <typename T>
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inline void Read(T &var, const u32 addr) {
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if (addr >= HLE::CMD_BUFFER_ADDR && addr < HLE::CMD_BUFFER_ADDR_END) {
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var = *((const T*)&g_command_buffer[addr & CMD_BUFFER_MASK]);
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} else {
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ERROR_LOG(HLE, "unknown read from address %08X", addr);
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}
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}
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// Write to memory used by CTROS HLE functions
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template <typename T>
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inline void Write(u32 addr, const T data) {
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if (addr >= HLE::CMD_BUFFER_ADDR && addr < HLE::CMD_BUFFER_ADDR_END) {
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*(T*)&g_command_buffer[addr & CMD_BUFFER_MASK] = data;
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} else {
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ERROR_LOG(HLE, "unknown write to address %08X", addr);
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}
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}
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// Explicitly instantiate template functions because we aren't defining this in the header:
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template void Read<u64>(u64 &var, const u32 addr);
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template void Read<u32>(u32 &var, const u32 addr);
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template void Read<u16>(u16 &var, const u32 addr);
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template void Read<u8>(u8 &var, const u32 addr);
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template void Write<u64>(u32 addr, const u64 data);
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template void Write<u32>(u32 addr, const u32 data);
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template void Write<u16>(u32 addr, const u16 data);
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template void Write<u8>(u32 addr, const u8 data);
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const FunctionDef* GetSyscallInfo(u32 opcode) {
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u32 func_num = opcode & 0xFFFFFF; // 8 bits
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if (func_num > 0xFF) {
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ERROR_LOG(HLE,"Unknown syscall: 0x%02X", func_num);
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return NULL;
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}
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return &g_module_db[0].func_table[func_num];
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}
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void CallSyscall(u32 opcode) {
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const FunctionDef *info = GetSyscallInfo(opcode);
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if (!info) {
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return;
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}
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if (info->func) {
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info->func();
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} else {
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ERROR_LOG(HLE, "Unimplemented HLE function %s", info->name);
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}
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}
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/// Returns the coprocessor (in this case, syscore) command buffer pointer
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Addr CallGetThreadCommandBuffer() {
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// Called on insruction: mrc p15, 0, r0, c13, c0, 3
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// Returns an address in OSHLE memory for the CPU to read/write to
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RETURN(CMD_BUFFER_ADDR);
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return CMD_BUFFER_ADDR;
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}
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void RegisterModule(std::string name, int num_functions, const FunctionDef* func_table) {
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ModuleDef module = {name, num_functions, func_table};
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g_module_db.push_back(module);
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}
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void RegisterAllModules() {
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Syscall::Register();
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}
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void Init() {
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Service::Init();
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g_command_buffer = new u8[CMD_BUFFER_SIZE];
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RegisterAllModules();
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NOTICE_LOG(HLE, "initialized OK");
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}
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void Shutdown() {
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Service::Shutdown();
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delete g_command_buffer;
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g_module_db.clear();
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NOTICE_LOG(HLE, "shutdown OK");
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}
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} // namespace
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