#ifndef _DOLPHIN_OS
#define _DOLPHIN_OS

#include <dolphin/gx.h>
#include <dolphin/types.h>

#ifdef __cplusplus
extern "C" {
#endif

// TODO OSInerrupt.h
typedef s16 __OSInterrupt;

// Upper words of the masks, since UIMM is only 16 bits
#define OS_CACHED_REGION_PREFIX 0x8000
#define OS_UNCACHED_REGION_PREFIX 0xC000
#define OS_PHYSICAL_MASK 0x3FFF

#define OS_BASE_CACHED (OS_CACHED_REGION_PREFIX << 16)
#define OS_BASE_UNCACHED (OS_UNCACHED_REGION_PREFIX << 16)

#ifdef __MWERKS__
#define AT_ADDRESS(xyz) : (xyz)
#else
#define AT_ADDRESS
#endif
typedef s64 OSTime;
typedef u32 OSTick;
u32 __OSBusClock AT_ADDRESS(OS_BASE_CACHED | 0x00F8);  // sync with OSLoMem.h
u32 __OSCoreClock AT_ADDRESS(OS_BASE_CACHED | 0x00FC); // sync with OSLoMem.h
#define OS_BUS_CLOCK __OSBusClock
#define OS_CORE_CLOCK __OSCoreClock
#define OS_TIMER_CLOCK (OS_BUS_CLOCK / 4)

#define OSPhysicalToCached(paddr) ((void*)((u32)(paddr) + OS_BASE_CACHED))
#define OSPhysicalToUncached(paddr) ((void*)((u32)(paddr) + OS_BASE_UNCACHED))
#define OSCachedToPhysical(caddr) ((u32)((u8*)(caddr)-OS_BASE_CACHED))
#define OSUncachedToPhysical(ucaddr) ((u32)((u8*)(ucaddr)-OS_BASE_UNCACHED))
#define OSCachedToUncached(caddr) ((void*)((u8*)(caddr) + (OS_BASE_UNCACHED - OS_BASE_CACHED)))
#define OSUncachedToCached(ucaddr) ((void*)((u8*)(ucaddr) - (OS_BASE_UNCACHED - OS_BASE_CACHED)))

#define OSTicksToCycles(ticks) (((ticks) * ((OS_CORE_CLOCK * 2) / OS_TIMER_CLOCK)) / 2)
#define OSTicksToSeconds(ticks) ((ticks) / OS_TIMER_CLOCK)
#define OSTicksToMilliseconds(ticks) ((ticks) / (OS_TIMER_CLOCK / 1000))
#define OSTicksToMicroseconds(ticks) (((ticks)*8) / (OS_TIMER_CLOCK / 125000))
#define OSTicksToNanoseconds(ticks) (((ticks)*8000) / (OS_TIMER_CLOCK / 125000))
#define OSSecondsToTicks(sec) ((sec)*OS_TIMER_CLOCK)
#define OSMillisecondsToTicks(msec) ((msec) * (OS_TIMER_CLOCK / 1000))
#define OSMicrosecondsToTicks(usec) (((usec) * (OS_TIMER_CLOCK / 125000)) / 8)
#define OSNanosecondsToTicks(nsec) (((nsec) * (OS_TIMER_CLOCK / 125000)) / 8000)

#define OSDiffTick(tick1, tick0) ((s32)(tick1) - (s32)(tick0))

#define OSRoundUp32B(v) ((((u32)(v) + 31) & ~31))
#define OSRoundDown32B(v) (((u32) (v)) & ~31)

#define OSRoundUp32BPtr(v) (void *)OSRoundUp32B(v)
#define OSRoundDown32BPtr(v) (void *)OSRoundDown32B(v)

typedef s32 OSHeapHandle;

extern volatile OSHeapHandle __OSCurrHeap;

void* OSInitAlloc(void*, void*, s32);
OSHeapHandle OSCreateHeap(void*, void*);
OSHeapHandle OSSetCurrentHeap(OSHeapHandle);
void* OSAllocFromHeap(OSHeapHandle, s32);
long OSCheckHeap(OSHeapHandle);
void OSFreeToHeap(OSHeapHandle heap, void* ptr);

#define OSAlloc(size) OSAllocFromHeap(__OSCurrHeap, (size))
#define OSFree(ptr)   OSFreeToHeap(__OSCurrHeap, (ptr))

void* OSGetArenaHi(void);
void* OSGetArenaLo(void);
void OSSetArenaHi(void* newHi);
void OSSetArenaLo(void* newLo);

void* OSAllocFromArenaLo(u32 size, u32 align);
void* OSAllocFromArenaHi(u32 size, u32 align);

void OSInit();

OSTime OSGetTime();
OSTick OSGetTick();

typedef struct OSCalendarTime {
  int sec;  // seconds after the minute [0, 61]
  int min;  // minutes after the hour [0, 59]
  int hour; // hours since midnight [0, 23]
  int mday; // day of the month [1, 31]
  int mon;  // month since January [0, 11]
  int year; // years in AD [1, ...]
  int wday; // days since Sunday [0, 6]
  int yday; // days since January 1 [0, 365]

  int msec; // milliseconds after the second [0,999]
  int usec; // microseconds after the millisecond [0,999]
} OSCalendarTime;

OSTime OSCalendarTimeToTicks(OSCalendarTime* td);
void OSTicksToCalendarTime(OSTime ticks, OSCalendarTime* td);

#define OS_CONSOLE_MASK 0xf0000000
#define OS_CONSOLE_RETAIL 0x00000000
#define OS_CONSOLE_DEVELOPMENT 0x10000000
#define OS_CONSOLE_TDEV 0x20000000

#define OS_CONSOLE_RETAIL4 0x00000004
#define OS_CONSOLE_RETAIL3 0x00000003
#define OS_CONSOLE_RETAIL2 0x00000002
#define OS_CONSOLE_RETAIL1 0x00000001
#define OS_CONSOLE_TDEVHW4 0x20000007
#define OS_CONSOLE_TDEVHW3 0x20000006
#define OS_CONSOLE_TDEVHW2 0x20000005
#define OS_CONSOLE_TDEVHW1 0x20000004
#define OS_CONSOLE_DEVHW4 0x10000007
#define OS_CONSOLE_DEVHW3 0x10000006
#define OS_CONSOLE_DEVHW2 0x10000005
#define OS_CONSOLE_DEVHW1 0x10000004
#define OS_CONSOLE_MINNOW 0x10000003
#define OS_CONSOLE_ARTHUR 0x10000002
#define OS_CONSOLE_PC_EMULATOR 0x10000001
#define OS_CONSOLE_EMULATOR 0x10000000

u32 OSGetConsoleType();

#define OS_SOUND_MODE_MONO 0u
#define OS_SOUND_MODE_STEREO 1u

u32 OSGetSoundMode(void);
void OSSetSoundMode(u32 mode);

#define OS_PROGRESSIVE_MODE_OFF 0u
#define OS_PROGRESSIVE_MODE_ON 1u

u32 OSGetProgressiveMode(void);
void OSSetProgressiveMode(u32 on);

#define OS_LANG_ENGLISH 0u
#define OS_LANG_GERMAN 1u
#define OS_LANG_FRENCH 2u
#define OS_LANG_SPANISH 3u
#define OS_LANG_ITALIAN 4u
#define OS_LANG_DUTCH 5u

u8 OSGetLanguage(void);
void OSSetLanguage(u8 language);

#define OS_EURGB60_OFF 0u
#define OS_EURGB60_ON 1u

u32 OSGetEuRgb60Mode(void);
void OSSetEuRgb60Mode(u32 on);

void OSRegisterVersion(const char* id);

BOOL OSDisableInterrupts(void);
BOOL OSEnableInterrupts(void);
BOOL OSRestoreInterrupts(BOOL level);

void OSReport(const char* msg, ...);
void OSPanic(const char* file, int line, const char* msg, ...);
void OSFatal(GXColor fg, GXColor bg, const char* msg);

#ifdef __cplusplus
}
#endif

#include <dolphin/os/OSAlarm.h>
#include <dolphin/os/OSArena.h>
#include <dolphin/os/OSCache.h>
#include <dolphin/os/OSContext.h>
#include <dolphin/os/OSError.h>
#include <dolphin/os/OSException.h>
#include <dolphin/os/OSExpansion.h>
#include <dolphin/os/OSFastCast.h>
#include <dolphin/os/OSFont.h>
#include <dolphin/os/OSInterrupt.h>
#include <dolphin/os/OSMemory.h>
#include <dolphin/os/OSMessage.h>
#include <dolphin/os/OSModule.h>
#include <dolphin/os/OSMutex.h>
#include <dolphin/os/OSReboot.h>
#include <dolphin/os/OSReset.h>
#include <dolphin/os/OSResetSW.h>
#include <dolphin/os/OSSerial.h>
#include <dolphin/os/OSThread.h>
#endif // _DOLPHIN_OS