1#ifndef GBA_H
  2#define GBA_H
  3
  4#include "util/common.h"
  5
  6#include "arm.h"
  7#include "debugger/debugger.h"
  8
  9#include "gba-memory.h"
 10#include "gba-video.h"
 11#include "gba-audio.h"
 12#include "gba-sio.h"
 13
 14extern const uint32_t GBA_ARM7TDMI_FREQUENCY;
 15
 16enum GBAIRQ {
 17	IRQ_VBLANK = 0x0,
 18	IRQ_HBLANK = 0x1,
 19	IRQ_VCOUNTER = 0x2,
 20	IRQ_TIMER0 = 0x3,
 21	IRQ_TIMER1 = 0x4,
 22	IRQ_TIMER2 = 0x5,
 23	IRQ_TIMER3 = 0x6,
 24	IRQ_SIO = 0x7,
 25	IRQ_DMA0 = 0x8,
 26	IRQ_DMA1 = 0x9,
 27	IRQ_DMA2 = 0xA,
 28	IRQ_DMA3 = 0xB,
 29	IRQ_KEYPAD = 0xC,
 30	IRQ_GAMEPAK = 0xD
 31};
 32
 33enum GBAError {
 34	GBA_NO_ERROR = 0,
 35	GBA_OUT_OF_MEMORY = -1
 36};
 37
 38enum GBALogLevel {
 39	GBA_LOG_FATAL = 0x01,
 40	GBA_LOG_ERROR = 0x02,
 41	GBA_LOG_WARN = 0x04,
 42	GBA_LOG_INFO = 0x08,
 43	GBA_LOG_DEBUG = 0x10,
 44	GBA_LOG_STUB = 0x20,
 45
 46	GBA_LOG_GAME_ERROR = 0x100,
 47	GBA_LOG_SWI = 0x200,
 48
 49	GBA_LOG_ALL = 0x33F
 50};
 51
 52enum GBAKey {
 53	GBA_KEY_A = 0,
 54	GBA_KEY_B = 1,
 55	GBA_KEY_SELECT = 2,
 56	GBA_KEY_START = 3,
 57	GBA_KEY_RIGHT = 4,
 58	GBA_KEY_LEFT = 5,
 59	GBA_KEY_UP = 6,
 60	GBA_KEY_DOWN = 7,
 61	GBA_KEY_R = 8,
 62	GBA_KEY_L = 9,
 63	GBA_KEY_MAX,
 64	GBA_KEY_NONE = -1
 65};
 66
 67struct GBA;
 68struct GBARotationSource;
 69struct Patch;
 70struct VFile;
 71
 72struct GBATimer {
 73	uint16_t reload;
 74	uint16_t oldReload;
 75	int32_t lastEvent;
 76	int32_t nextEvent;
 77	int32_t overflowInterval;
 78	unsigned prescaleBits : 4;
 79	unsigned countUp : 1;
 80	unsigned doIrq : 1;
 81	unsigned enable : 1;
 82};
 83
 84struct GBA {
 85	struct ARMComponent d;
 86
 87	struct ARMCore* cpu;
 88	struct GBAMemory memory;
 89	struct GBAVideo video;
 90	struct GBAAudio audio;
 91	struct GBASIO sio;
 92
 93	struct GBASync* sync;
 94
 95	struct ARMDebugger* debugger;
 96
 97	uint32_t bus;
 98
 99	int timersEnabled;
100	struct GBATimer timers[4];
101
102	int springIRQ;
103	uint32_t biosChecksum;
104	int* keySource;
105	uint32_t busyLoop;
106	struct GBARotationSource* rotationSource;
107	struct GBARumble* rumble;
108	struct GBARRContext* rr;
109	void* pristineRom;
110	size_t pristineRomSize;
111	uint32_t romCrc32;
112	struct VFile* romVf;
113	struct VFile* biosVf;
114
115	const char* activeFile;
116
117	int logLevel;
118};
119
120struct GBACartridge {
121	uint32_t entry;
122	uint8_t logo[156];
123	char title[12];
124	uint32_t id;
125	uint16_t maker;
126	uint8_t type;
127	uint8_t unit;
128	uint8_t device;
129	uint8_t reserved[7];
130	uint8_t version;
131	uint8_t checksum;
132	// And ROM data...
133};
134
135void GBACreate(struct GBA* gba);
136void GBADestroy(struct GBA* gba);
137
138void GBAReset(struct ARMCore* cpu);
139
140void GBATimerUpdateRegister(struct GBA* gba, int timer);
141void GBATimerWriteTMCNT_LO(struct GBA* gba, int timer, uint16_t value);
142void GBATimerWriteTMCNT_HI(struct GBA* gba, int timer, uint16_t value);
143
144void GBAWriteIE(struct GBA* gba, uint16_t value);
145void GBAWriteIME(struct GBA* gba, uint16_t value);
146void GBARaiseIRQ(struct GBA* gba, enum GBAIRQ irq);
147void GBATestIRQ(struct ARMCore* cpu);
148void GBAHalt(struct GBA* gba);
149
150void GBAAttachDebugger(struct GBA* gba, struct ARMDebugger* debugger);
151void GBADetachDebugger(struct GBA* gba);
152
153void GBALoadROM(struct GBA* gba, struct VFile* vf, struct VFile* sav, const char* fname);
154void GBALoadBIOS(struct GBA* gba, struct VFile* vf);
155void GBAApplyPatch(struct GBA* gba, struct Patch* patch);
156
157bool GBAIsROM(struct VFile* vf);
158void GBAGetGameCode(struct GBA* gba, char* out);
159void GBAGetGameTitle(struct GBA* gba, char* out);
160
161__attribute__((format (printf, 3, 4)))
162void GBALog(struct GBA* gba, enum GBALogLevel level, const char* format, ...);
163
164__attribute__((format (printf, 3, 4)))
165void GBADebuggerLogShim(struct ARMDebugger* debugger, enum DebuggerLogLevel level, const char* format, ...);
166
167#endif