Merge pull request #8224 from Pokechu22/wiimote-eeprom

Write the entirety of the Wiimote EEPROM, in a per-Wiimote file

Source/Core/Core/Core.cpp

@@ -290,6 +290,7 @@ void Stop()  // - Hammertime!
     g_video_backend->Video_ExitLoop();
   }
 
+  Wiimote::ResetAllWiimotes();
   ResetRumble();
 
 #ifdef USE_MEMORYWATCHER

Source/Core/Core/HW/Wiimote.h

@@ -63,6 +63,8 @@ enum class InitializeMode
 
 // The Real Wii Remote sends report every ~5ms (200 Hz).
 constexpr int UPDATE_FREQ = 200;
+// Custom channel ID used in ControlChannel to indicate disconnects
+constexpr int DOLPHIN_DISCONNET_CONTROL_CHANNEL = 99;
 
 void Shutdown();
 void Initialize(InitializeMode init_mode);

Source/Core/Core/HW/WiimoteEmu/EmuSubroutines.cpp

@@ -291,18 +291,7 @@ void Wiimote::HandleWriteData(const OutputReportWriteData& wd)
     else
     {
       std::copy_n(wd.data, wd.size, m_eeprom.data.data() + address);
-
-      // Write mii data to file
-      if (address >= 0x0FCA && address < 0x12C0)
-      {
-        // TODO: Only write parts of the Mii block.
-        // TODO: Use different files for different wiimote numbers.
-        std::ofstream file;
-        File::OpenFStream(file, File::GetUserPath(D_SESSION_WIIROOT_IDX) + "/mii.bin",
-                          std::ios::binary | std::ios::out);
-        file.write((char*)m_eeprom.data.data() + 0x0FCA, 0x02f0);
-        file.close();
-      }
+      m_eeprom_dirty = true;
     }
   }
   break;
@@ -486,18 +475,6 @@ bool Wiimote::ProcessReadDataRequest()
     }
     else
     {
-      // Mii block handling:
-      // TODO: different filename for each wiimote?
-      if (m_read_request.address >= 0x0FCA && m_read_request.address < 0x12C0)
-      {
-        // TODO: Only read the Mii block parts required
-        std::ifstream file;
-        File::OpenFStream(file, (File::GetUserPath(D_SESSION_WIIROOT_IDX) + "/mii.bin").c_str(),
-                          std::ios::binary | std::ios::in);
-        file.read((char*)m_eeprom.data.data() + 0x0FCA, 0x02f0);
-        file.close();
-      }
-
       // Read memory to be sent to Wii
       std::copy_n(m_eeprom.data.data() + m_read_request.address, bytes_to_read, reply.data);
       reply.size_minus_one = bytes_to_read - 1;

Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.cpp

@@ -12,6 +12,7 @@
 
 #include "Common/CommonTypes.h"
 #include "Common/Config/Config.h"
+#include "Common/FileUtil.h"
 #include "Common/Logging/Log.h"
 #include "Common/MathUtil.h"
 #include "Common/MsgHandler.h"
@@ -77,8 +78,32 @@ void Wiimote::Reset()
   m_speaker_mute = false;
 
   // EEPROM
+  std::string eeprom_file = (File::GetUserPath(D_SESSION_WIIROOT_IDX) + "/" + GetName() + ".bin");
+  if (m_eeprom_dirty)
+  {
+    // Write out existing EEPROM
+    INFO_LOG(WIIMOTE, "Wrote EEPROM for %s", GetName().c_str());
+    std::ofstream file;
+    File::OpenFStream(file, eeprom_file, std::ios::binary | std::ios::out);
+    file.write(reinterpret_cast<char*>(m_eeprom.data.data()), EEPROM_FREE_SIZE);
+    file.close();
+
+    m_eeprom_dirty = false;
+  }
   m_eeprom = {};
 
+  if (File::Exists(eeprom_file))
+  {
+    // Read existing EEPROM
+    std::ifstream file;
+    File::OpenFStream(file, eeprom_file, std::ios::binary | std::ios::in);
+    file.read(reinterpret_cast<char*>(m_eeprom.data.data()), EEPROM_FREE_SIZE);
+    file.close();
+  }
+  else
+  {
+    // Load some default data.
+
     // IR calibration:
     std::array<u8, 11> ir_calibration = {
         // Point 1
@@ -117,11 +142,23 @@ void Wiimote::Reset()
 
     // TODO: Is this needed?
     // Data of unknown purpose:
-  constexpr std::array<u8, 24> EEPROM_DATA_16D0 = {0x00, 0x00, 0x00, 0xFF, 0x11, 0xEE, 0x00, 0x00,
-                                                   0x33, 0xCC, 0x44, 0xBB, 0x00, 0x00, 0x66, 0x99,
-                                                   0x77, 0x88, 0x00, 0x00, 0x2B, 0x01, 0xE8, 0x13};
+    constexpr std::array<u8, 24> EEPROM_DATA_16D0 = {
+        0x00, 0x00, 0x00, 0xFF, 0x11, 0xEE, 0x00, 0x00, 0x33, 0xCC, 0x44, 0xBB,
+        0x00, 0x00, 0x66, 0x99, 0x77, 0x88, 0x00, 0x00, 0x2B, 0x01, 0xE8, 0x13};
     m_eeprom.unk_2 = EEPROM_DATA_16D0;
 
+    std::string mii_file = File::GetUserPath(D_SESSION_WIIROOT_IDX) + "/mii.bin";
+    if (File::Exists(mii_file))
+    {
+      // Import from the existing mii.bin file, if present
+      std::ifstream file;
+      File::OpenFStream(file, mii_file, std::ios::binary | std::ios::in);
+      file.read(reinterpret_cast<char*>(m_eeprom.mii_data_1.data()), m_eeprom.mii_data_1.size());
+      m_eeprom.mii_data_2 = m_eeprom.mii_data_1;
+      file.close();
+    }
+  }
+
   m_read_request = {};
 
   // Initialize i2c bus:
@@ -245,6 +282,8 @@ Wiimote::Wiimote(const unsigned int index) : m_index(index)
 
 std::string Wiimote::GetName() const
 {
+  if (m_index == WIIMOTE_BALANCE_BOARD)
+    return "BalanceBoard";
   return fmt::format("Wiimote{}", 1 + m_index);
 }
 
@@ -533,7 +572,7 @@ void Wiimote::SendDataReport()
 void Wiimote::ControlChannel(const u16 channel_id, const void* data, u32 size)
 {
   // Check for custom communication
-  if (99 == channel_id)
+  if (channel_id == ::Wiimote::DOLPHIN_DISCONNET_CONTROL_CHANNEL)
   {
     // Wii Remote disconnected.
     Reset();

Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.h

@@ -291,6 +291,7 @@ private:
 
   bool m_is_motion_plus_attached;
 
+  bool m_eeprom_dirty = false;
   ReadRequest m_read_request;
   UsableEEPROMData m_eeprom;
 

Source/Core/Core/HW/WiimoteReal/WiimoteReal.cpp

@@ -143,7 +143,7 @@ void Wiimote::ClearReadQueue()
 void Wiimote::ControlChannel(const u16 channel, const void* const data, const u32 size)
 {
   // Check for custom communication
-  if (channel == 99)
+  if (channel == ::Wiimote::DOLPHIN_DISCONNET_CONTROL_CHANNEL)
   {
     if (m_really_disconnect)
     {

Source/Core/Core/IOS/MIOS.cpp

@@ -20,6 +20,7 @@
 #include "Core/HW/DVD/DVDInterface.h"
 #include "Core/HW/Memmap.h"
 #include "Core/HW/SystemTimers.h"
+#include "Core/HW/Wiimote.h"
 #include "Core/Host.h"
 #include "Core/PowerPC/PPCSymbolDB.h"
 #include "Core/PowerPC/PowerPC.h"
@@ -35,6 +36,7 @@ static void ReinitHardware()
   // MIOS appears to only reset the DI and the PPC.
   DVDInterface::Reset();
   PowerPC::Reset();
+  Wiimote::ResetAllWiimotes();
   // Note: this is specific to Dolphin and is required because we initialised it in Wii mode.
   DSP::Reinit(SConfig::GetInstance().bDSPHLE);
   DSP::GetDSPEmulator()->Initialize(SConfig::GetInstance().bWii, SConfig::GetInstance().bDSPThread);

Source/Core/Core/IOS/USB/Bluetooth/WiimoteDevice.cpp

@@ -218,7 +218,8 @@ void WiimoteDevice::EventConnectionAccepted()
 void WiimoteDevice::EventDisconnect()
 {
   // Send disconnect message to plugin
-  Wiimote::ControlChannel(m_connection_handle & 0xFF, 99, nullptr, 0);
+  Wiimote::ControlChannel(m_connection_handle & 0xFF, Wiimote::DOLPHIN_DISCONNET_CONTROL_CHANNEL,
+                          nullptr, 0);
 
   m_connection_state = ConnectionState::Inactive;