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-rw-r--r--src/core/hle/service/cfg/cfg.cpp202
1 files changed, 202 insertions, 0 deletions
diff --git a/src/core/hle/service/cfg/cfg.cpp b/src/core/hle/service/cfg/cfg.cpp
new file mode 100644
index 000000000..161aa8531
--- /dev/null
+++ b/src/core/hle/service/cfg/cfg.cpp
@@ -0,0 +1,202 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include "common/log.h"
+#include "common/make_unique.h"
+#include "core/file_sys/archive_systemsavedata.h"
+#include "core/hle/service/cfg/cfg.h"
+
+namespace Service {
+namespace CFG {
+
+const u64 CFG_SAVE_ID = 0x00010017;
+const u64 CONSOLE_UNIQUE_ID = 0xDEADC0DE;
+const ConsoleModelInfo CONSOLE_MODEL = { NINTENDO_3DS_XL, { 0, 0, 0 } };
+const u8 CONSOLE_LANGUAGE = LANGUAGE_EN;
+const char CONSOLE_USERNAME[0x14] = "CITRA";
+/// This will be initialized in CFGInit, and will be used when creating the block
+UsernameBlock CONSOLE_USERNAME_BLOCK;
+/// TODO(Subv): Find out what this actually is
+const u8 SOUND_OUTPUT_MODE = 2;
+const u8 UNITED_STATES_COUNTRY_ID = 49;
+/// TODO(Subv): Find what the other bytes are
+const ConsoleCountryInfo COUNTRY_INFO = { { 0, 0, 0 }, UNITED_STATES_COUNTRY_ID };
+
+/**
+ * TODO(Subv): Find out what this actually is, these values fix some NaN uniforms in some games,
+ * for example Nintendo Zone
+ * Thanks Normmatt for providing this information
+ */
+const std::array<float, 8> STEREO_CAMERA_SETTINGS = {
+ 62.0f, 289.0f, 76.80000305175781f, 46.08000183105469f,
+ 10.0f, 5.0f, 55.58000183105469f, 21.56999969482422f
+};
+
+static const u32 CONFIG_SAVEFILE_SIZE = 0x8000;
+static std::array<u8, CONFIG_SAVEFILE_SIZE> cfg_config_file_buffer;
+
+static std::unique_ptr<FileSys::Archive_SystemSaveData> cfg_system_save_data;
+
+ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output) {
+ // Read the header
+ SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
+
+ auto itr = std::find_if(std::begin(config->block_entries), std::end(config->block_entries),
+ [&](const SaveConfigBlockEntry& entry) {
+ return entry.block_id == block_id && entry.size == size && (entry.flags & flag);
+ });
+
+ if (itr == std::end(config->block_entries)) {
+ LOG_ERROR(Service_CFG, "Config block %u with size %u and flags %u not found", block_id, size, flag);
+ return ResultCode(-1); // TODO(Subv): Find the correct error code
+ }
+
+ // The data is located in the block header itself if the size is less than 4 bytes
+ if (itr->size <= 4)
+ memcpy(output, &itr->offset_or_data, itr->size);
+ else
+ memcpy(output, &cfg_config_file_buffer[itr->offset_or_data], itr->size);
+
+ return RESULT_SUCCESS;
+}
+
+ResultCode CreateConfigInfoBlk(u32 block_id, u16 size, u16 flags, const u8* data) {
+ SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
+ if (config->total_entries >= CONFIG_FILE_MAX_BLOCK_ENTRIES)
+ return ResultCode(-1); // TODO(Subv): Find the right error code
+
+ // Insert the block header with offset 0 for now
+ config->block_entries[config->total_entries] = { block_id, 0, size, flags };
+ if (size > 4) {
+ u32 offset = config->data_entries_offset;
+ // Perform a search to locate the next offset for the new data
+ // use the offset and size of the previous block to determine the new position
+ for (int i = config->total_entries - 1; i >= 0; --i) {
+ // Ignore the blocks that don't have a separate data offset
+ if (config->block_entries[i].size > 4) {
+ offset = config->block_entries[i].offset_or_data +
+ config->block_entries[i].size;
+ break;
+ }
+ }
+
+ config->block_entries[config->total_entries].offset_or_data = offset;
+
+ // Write the data at the new offset
+ memcpy(&cfg_config_file_buffer[offset], data, size);
+ }
+ else {
+ // The offset_or_data field in the header contains the data itself if it's 4 bytes or less
+ memcpy(&config->block_entries[config->total_entries].offset_or_data, data, size);
+ }
+
+ ++config->total_entries;
+ return RESULT_SUCCESS;
+}
+
+ResultCode DeleteConfigNANDSaveFile() {
+ FileSys::Path path("config");
+ if (cfg_system_save_data->DeleteFile(path))
+ return RESULT_SUCCESS;
+ return ResultCode(-1); // TODO(Subv): Find the right error code
+}
+
+ResultCode UpdateConfigNANDSavegame() {
+ FileSys::Mode mode = {};
+ mode.write_flag = 1;
+ mode.create_flag = 1;
+ FileSys::Path path("config");
+ auto file = cfg_system_save_data->OpenFile(path, mode);
+ _assert_msg_(Service_CFG, file != nullptr, "could not open file");
+ file->Write(0, CONFIG_SAVEFILE_SIZE, 1, cfg_config_file_buffer.data());
+ return RESULT_SUCCESS;
+}
+
+ResultCode FormatConfig() {
+ ResultCode res = DeleteConfigNANDSaveFile();
+ if (!res.IsSuccess())
+ return res;
+ // Delete the old data
+ cfg_config_file_buffer.fill(0);
+ // Create the header
+ SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
+ // This value is hardcoded, taken from 3dbrew, verified by hardware, it's always the same value
+ config->data_entries_offset = 0x455C;
+ // Insert the default blocks
+ res = CreateConfigInfoBlk(0x00050005, sizeof(STEREO_CAMERA_SETTINGS), 0xE,
+ reinterpret_cast<const u8*>(STEREO_CAMERA_SETTINGS.data()));
+ if (!res.IsSuccess())
+ return res;
+ res = CreateConfigInfoBlk(0x00090001, sizeof(CONSOLE_UNIQUE_ID), 0xE,
+ reinterpret_cast<const u8*>(&CONSOLE_UNIQUE_ID));
+ if (!res.IsSuccess())
+ return res;
+ res = CreateConfigInfoBlk(0x000F0004, sizeof(CONSOLE_MODEL), 0x8,
+ reinterpret_cast<const u8*>(&CONSOLE_MODEL));
+ if (!res.IsSuccess())
+ return res;
+ res = CreateConfigInfoBlk(0x000A0002, sizeof(CONSOLE_LANGUAGE), 0xA, &CONSOLE_LANGUAGE);
+ if (!res.IsSuccess())
+ return res;
+ res = CreateConfigInfoBlk(0x00070001, sizeof(SOUND_OUTPUT_MODE), 0xE, &SOUND_OUTPUT_MODE);
+ if (!res.IsSuccess())
+ return res;
+ res = CreateConfigInfoBlk(0x000B0000, sizeof(COUNTRY_INFO), 0xE,
+ reinterpret_cast<const u8*>(&COUNTRY_INFO));
+ if (!res.IsSuccess())
+ return res;
+ res = CreateConfigInfoBlk(0x000A0000, sizeof(CONSOLE_USERNAME_BLOCK), 0xE,
+ reinterpret_cast<const u8*>(&CONSOLE_USERNAME_BLOCK));
+ if (!res.IsSuccess())
+ return res;
+ // Save the buffer to the file
+ res = UpdateConfigNANDSavegame();
+ if (!res.IsSuccess())
+ return res;
+ return RESULT_SUCCESS;
+}
+
+void CFGInit() {
+ // TODO(Subv): In the future we should use the FS service to query this archive,
+ // currently it is not possible because you can only have one open archive of the same type at any time
+ std::string syssavedata_directory = FileUtil::GetUserPath(D_SYSSAVEDATA_IDX);
+ cfg_system_save_data = Common::make_unique<FileSys::Archive_SystemSaveData>(
+ syssavedata_directory, CFG_SAVE_ID);
+ if (!cfg_system_save_data->Initialize()) {
+ LOG_CRITICAL(Service_CFG, "Could not initialize SystemSaveData archive for the CFG:U service");
+ return;
+ }
+
+ // TODO(Subv): All this code should be moved to cfg:i,
+ // it's only here because we do not currently emulate the lower level code that uses that service
+ // Try to open the file in read-only mode to check its existence
+ FileSys::Mode mode = {};
+ mode.read_flag = 1;
+ FileSys::Path path("config");
+ auto file = cfg_system_save_data->OpenFile(path, mode);
+
+ // Load the config if it already exists
+ if (file != nullptr) {
+ file->Read(0, CONFIG_SAVEFILE_SIZE, cfg_config_file_buffer.data());
+ return;
+ }
+
+ // Initialize the Username block
+ // TODO(Subv): Initialize this directly in the variable when MSVC supports char16_t string literals
+ CONSOLE_USERNAME_BLOCK.ng_word = 0;
+ CONSOLE_USERNAME_BLOCK.zero = 0;
+ // Copy string to buffer and pad with zeros at the end
+ auto size = Common::UTF8ToUTF16(CONSOLE_USERNAME).copy(CONSOLE_USERNAME_BLOCK.username, 0x14);
+ std::fill(std::begin(CONSOLE_USERNAME_BLOCK.username) + size,
+ std::end(CONSOLE_USERNAME_BLOCK.username), 0);
+ FormatConfig();
+}
+
+void CFGShutdown() {
+
+}
+
+} // namespace CFG
+} // namespace Service