convert DSi I2C and camera

src/DSi_I2C.h

@@ -22,95 +22,162 @@
 #include "types.h"
 #include "Savestate.h"
 
-namespace DSi_BPTWL
+class DSi_I2CHost;
+class DSi_Camera;
+
+class DSi_I2CDevice
 {
+public:
+    DSi_I2CDevice(DSi_I2CHost* host) : Host(host) {}
+    virtual ~DSi_I2CDevice() {}
+    virtual void Reset() = 0;
+    virtual void DoSavestate(Savestate* file) = 0;
 
-u8 GetBootFlag();
+    virtual void Acquire() = 0;
+    virtual u8 Read(bool last) = 0;
+    virtual void Write(u8 val, bool last) = 0;
 
-bool GetBatteryCharging();
-void SetBatteryCharging(bool charging);
-
-enum
-{
-    batteryLevel_Critical = 0x0,
-    batteryLevel_AlmostEmpty = 0x1,
-    batteryLevel_Low = 0x3,
-    batteryLevel_Half = 0x7,
-    batteryLevel_ThreeQuarters = 0xB,
-    batteryLevel_Full = 0xF
+protected:
+    DSi_I2CHost* Host;
 };
 
-u8 GetBatteryLevel();
-void SetBatteryLevel(u8 batteryLevel);
-
-// 0-31
-u8 GetVolumeLevel();
-void SetVolumeLevel(u8 volume);
-
-// 0-4
-u8 GetBacklightLevel();
-void SetBacklightLevel(u8 backlight);
-
-void DoHardwareReset(bool direct);
-void DoShutdown();
-
-enum
+class DSi_BPTWL : public DSi_I2CDevice
 {
-    volumeKey_Up,
-    volumeKey_Down,
+public:
+
+    enum
+    {
+        batteryLevel_Critical = 0x0,
+        batteryLevel_AlmostEmpty = 0x1,
+        batteryLevel_Low = 0x3,
+        batteryLevel_Half = 0x7,
+        batteryLevel_ThreeQuarters = 0xB,
+        batteryLevel_Full = 0xF
+    };
+
+    enum
+    {
+        volumeKey_Up,
+        volumeKey_Down,
+    };
+
+    enum
+    {
+        IRQ_PowerButtonReset    = 0x01, // Triggered after releasing the power button quickly
+        IRQ_PowerButtonShutdown = 0x02, // Triggered after holding the power button for less than a second
+        IRQ_PowerButtonPressed  = 0x08, // Triggered after pressing the power button
+        IRQ_BatteryEmpty        = 0x10, //
+        IRQ_BatteryLow          = 0x20, // Triggered when the battery level reaches 1
+        IRQ_VolumeSwitchPressed = 0x40, // Triggered once when the volume sliders are first pressed and repeatedly when held down
+        /*
+            Bit 2 (0x04) could be set when holding the power button for more than 5 seconds? (forced power off)
+            It is unknown whether it is set as the console powers off immediately.
+            Bit 7 (0x80) is unused?
+            Both bits are never used by the official ARM7 libraries, but could have some undocumented hardware functionality (?).
+        */
+        IRQ_ValidMask           = 0x7B,
+    };
+
+    DSi_BPTWL(DSi_I2CHost* host);
+    ~DSi_BPTWL() override;
+    void Reset() override;
+    void DoSavestate(Savestate* file) override;
+
+    u8 GetBootFlag();
+
+    bool GetBatteryCharging();
+    void SetBatteryCharging(bool charging);
+
+    u8 GetBatteryLevel();
+    void SetBatteryLevel(u8 batteryLevel);
+
+    // 0-31
+    u8 GetVolumeLevel();
+    void SetVolumeLevel(u8 volume);
+
+    // 0-4
+    u8 GetBacklightLevel();
+    void SetBacklightLevel(u8 backlight);
+
+    void DoHardwareReset(bool direct);
+    void DoShutdown();
+
+    // Used by hotkeys
+    void SetPowerButtonHeld(double time);
+    void SetPowerButtonReleased(double time);
+    void SetVolumeSwitchHeld(u32 key);
+    void SetVolumeSwitchReleased(u32 key);
+    s32 ProcessVolumeSwitchInput(double time);
+
+    void DoPowerButtonPress();
+    void DoPowerButtonReset();
+    void DoPowerButtonShutdown();
+    void DoPowerButtonForceShutdown();
+    void DoVolumeSwitchPress(u32 key);
+
+    void SetIRQ(u8 irqFlag);
+
+    void Acquire() override;
+    u8 Read(bool last) override;
+    void Write(u8 val, bool last) override;
+
+private:
+    static const double PowerButtonShutdownTime;
+    static const double PowerButtonForcedShutdownTime;
+    static const double VolumeSwitchRepeatStart;
+    static const double VolumeSwitchRepeatRate;
+
+    static const u8 VolumeDownTable[32];
+    static const u8 VolumeUpTable[32];
+
+    double PowerButtonTime;
+    bool PowerButtonDownFlag;
+    bool PowerButtonShutdownFlag;
+    double VolumeSwitchTime;
+    double VolumeSwitchRepeatTime;
+    bool VolumeSwitchDownFlag ;
+    u32 VolumeSwitchKeysDown;
+
+    u8 Registers[0x100];
+    u32 CurPos;
+
+    bool GetIRQMode();
+
+    void ResetButtonState();
+    bool CheckVolumeSwitchKeysValid();
 };
 
-// Used by hotkeys
-void SetPowerButtonHeld(double time);
-void SetPowerButtonReleased(double time);
-void SetVolumeSwitchHeld(u32 key);
-void SetVolumeSwitchReleased(u32 key);
-s32 ProcessVolumeSwitchInput(double time);
 
-void DoPowerButtonPress();
-void DoPowerButtonReset();
-void DoPowerButtonShutdown();
-void DoPowerButtonForceShutdown();
-void DoVolumeSwitchPress(u32 key);
-
-enum
+class DSi_I2CHost
 {
-    IRQ_PowerButtonReset    = 0x01, // Triggered after releasing the power button quickly
-    IRQ_PowerButtonShutdown = 0x02, // Triggered after holding the power button for less than a second
-    IRQ_PowerButtonPressed  = 0x08, // Triggered after pressing the power button
-    IRQ_BatteryEmpty        = 0x10, //
-    IRQ_BatteryLow          = 0x20, // Triggered when the battery level reaches 1
-    IRQ_VolumeSwitchPressed = 0x40, // Triggered once when the volume sliders are first pressed and repeatedly when held down
-    /*
-        Bit 2 (0x04) could be set when holding the power button for more than 5 seconds? (forced power off)
-        It is unknown whether it is set as the console powers off immediately.
-        Bit 7 (0x80) is unused?
-        Both bits are never used by the official ARM7 libraries, but could have some undocumented hardware functionality (?).
-    */
-    IRQ_ValidMask           = 0x7B,
+public:
+    DSi_I2CHost();
+    ~DSi_I2CHost();
+    void Reset();
+    void DoSavestate(Savestate* file);
+
+    DSi_BPTWL* GetBPTWL() { return BPTWL; }
+    DSi_Camera* GetOuterCamera() { return Camera0; }
+    DSi_Camera* GetInnerCamera() { return Camera1; }
+
+    u8 ReadCnt() { return Cnt; }
+    void WriteCnt(u8 val);
+
+    u8 ReadData();
+    void WriteData(u8 val);
+
+private:
+    u8 Cnt;
+    u8 Data;
+
+    DSi_BPTWL* BPTWL;       // 4A / BPTWL IC
+    DSi_Camera* Camera0;    // 78 / facing outside
+    DSi_Camera* Camera1;    // 7A / selfie cam
+
+    u8 CurDeviceID;
+    DSi_I2CDevice* CurDevice;
+
+    void GetCurDevice();
 };
 
-void SetIRQ(u8 irqFlag);
-
-}
-
-namespace DSi_I2C
-{
-
-extern u8 Cnt;
-
-bool Init();
-void DeInit();
-void Reset();
-void DoSavestate(Savestate* file);
-
-void WriteCnt(u8 val);
-
-u8 ReadData();
-void WriteData(u8 val);
-
-//void TransferDone(u32 param);
-
-}
-
 #endif // DSI_I2C_H