1/* Copyright (c) 2013-2015 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#ifndef GBA_IO_H
  7#define GBA_IO_H
  8
  9#include <mgba-util/common.h>
 10
 11CXX_GUARD_START
 12
 13#include <mgba/core/log.h>
 14
 15enum GBAIORegisters {
 16	// Video
 17	REG_DISPCNT = 0x000,
 18	REG_GREENSWP = 0x002,
 19	REG_DISPSTAT = 0x004,
 20	REG_VCOUNT = 0x006,
 21	REG_BG0CNT = 0x008,
 22	REG_BG1CNT = 0x00A,
 23	REG_BG2CNT = 0x00C,
 24	REG_BG3CNT = 0x00E,
 25	REG_BG0HOFS = 0x010,
 26	REG_BG0VOFS = 0x012,
 27	REG_BG1HOFS = 0x014,
 28	REG_BG1VOFS = 0x016,
 29	REG_BG2HOFS = 0x018,
 30	REG_BG2VOFS = 0x01A,
 31	REG_BG3HOFS = 0x01C,
 32	REG_BG3VOFS = 0x01E,
 33	REG_BG2PA = 0x020,
 34	REG_BG2PB = 0x022,
 35	REG_BG2PC = 0x024,
 36	REG_BG2PD = 0x026,
 37	REG_BG2X_LO = 0x028,
 38	REG_BG2X_HI = 0x02A,
 39	REG_BG2Y_LO = 0x02C,
 40	REG_BG2Y_HI = 0x02E,
 41	REG_BG3PA = 0x030,
 42	REG_BG3PB = 0x032,
 43	REG_BG3PC = 0x034,
 44	REG_BG3PD = 0x036,
 45	REG_BG3X_LO = 0x038,
 46	REG_BG3X_HI = 0x03A,
 47	REG_BG3Y_LO = 0x03C,
 48	REG_BG3Y_HI = 0x03E,
 49	REG_WIN0H = 0x040,
 50	REG_WIN1H = 0x042,
 51	REG_WIN0V = 0x044,
 52	REG_WIN1V = 0x046,
 53	REG_WININ = 0x048,
 54	REG_WINOUT = 0x04A,
 55	REG_MOSAIC = 0x04C,
 56	REG_BLDCNT = 0x050,
 57	REG_BLDALPHA = 0x052,
 58	REG_BLDY = 0x054,
 59
 60	// Sound
 61	REG_SOUND1CNT_LO = 0x060,
 62	REG_SOUND1CNT_HI = 0x062,
 63	REG_SOUND1CNT_X = 0x064,
 64	REG_SOUND2CNT_LO = 0x068,
 65	REG_SOUND2CNT_HI = 0x06C,
 66	REG_SOUND3CNT_LO = 0x070,
 67	REG_SOUND3CNT_HI = 0x072,
 68	REG_SOUND3CNT_X = 0x074,
 69	REG_SOUND4CNT_LO = 0x078,
 70	REG_SOUND4CNT_HI = 0x07C,
 71	REG_SOUNDCNT_LO = 0x080,
 72	REG_SOUNDCNT_HI = 0x082,
 73	REG_SOUNDCNT_X = 0x084,
 74	REG_SOUNDBIAS = 0x088,
 75	REG_WAVE_RAM0_LO = 0x090,
 76	REG_WAVE_RAM0_HI = 0x092,
 77	REG_WAVE_RAM1_LO = 0x094,
 78	REG_WAVE_RAM1_HI = 0x096,
 79	REG_WAVE_RAM2_LO = 0x098,
 80	REG_WAVE_RAM2_HI = 0x09A,
 81	REG_WAVE_RAM3_LO = 0x09C,
 82	REG_WAVE_RAM3_HI = 0x09E,
 83	REG_FIFO_A_LO = 0x0A0,
 84	REG_FIFO_A_HI = 0x0A2,
 85	REG_FIFO_B_LO = 0x0A4,
 86	REG_FIFO_B_HI = 0x0A6,
 87
 88	// DMA
 89	REG_DMA0SAD_LO = 0x0B0,
 90	REG_DMA0SAD_HI = 0x0B2,
 91	REG_DMA0DAD_LO = 0x0B4,
 92	REG_DMA0DAD_HI = 0x0B6,
 93	REG_DMA0CNT_LO = 0x0B8,
 94	REG_DMA0CNT_HI = 0x0BA,
 95	REG_DMA1SAD_LO = 0x0BC,
 96	REG_DMA1SAD_HI = 0x0BE,
 97	REG_DMA1DAD_LO = 0x0C0,
 98	REG_DMA1DAD_HI = 0x0C2,
 99	REG_DMA1CNT_LO = 0x0C4,
100	REG_DMA1CNT_HI = 0x0C6,
101	REG_DMA2SAD_LO = 0x0C8,
102	REG_DMA2SAD_HI = 0x0CA,
103	REG_DMA2DAD_LO = 0x0CC,
104	REG_DMA2DAD_HI = 0x0CE,
105	REG_DMA2CNT_LO = 0x0D0,
106	REG_DMA2CNT_HI = 0x0D2,
107	REG_DMA3SAD_LO = 0x0D4,
108	REG_DMA3SAD_HI = 0x0D6,
109	REG_DMA3DAD_LO = 0x0D8,
110	REG_DMA3DAD_HI = 0x0DA,
111	REG_DMA3CNT_LO = 0x0DC,
112	REG_DMA3CNT_HI = 0x0DE,
113
114	// Timers
115	REG_TM0CNT_LO = 0x100,
116	REG_TM0CNT_HI = 0x102,
117	REG_TM1CNT_LO = 0x104,
118	REG_TM1CNT_HI = 0x106,
119	REG_TM2CNT_LO = 0x108,
120	REG_TM2CNT_HI = 0x10A,
121	REG_TM3CNT_LO = 0x10C,
122	REG_TM3CNT_HI = 0x10E,
123
124	// SIO (note: some of these are repeated)
125	REG_SIODATA32_LO = 0x120,
126	REG_SIOMULTI0 = 0x120,
127	REG_SIODATA32_HI = 0x122,
128	REG_SIOMULTI1 = 0x122,
129	REG_SIOMULTI2 = 0x124,
130	REG_SIOMULTI3 = 0x126,
131	REG_SIOCNT = 0x128,
132	REG_SIOMLT_SEND = 0x12A,
133	REG_SIODATA8 = 0x12A,
134	REG_RCNT = 0x134,
135	REG_JOYCNT = 0x140,
136	REG_JOY_RECV_LO = 0x150,
137	REG_JOY_RECV_HI = 0x152,
138	REG_JOY_TRANS_LO = 0x154,
139	REG_JOY_TRANS_HI = 0x156,
140	REG_JOYSTAT = 0x158,
141
142	// Keypad
143	REG_KEYINPUT = 0x130,
144	REG_KEYCNT = 0x132,
145
146	// Interrupts, etc
147	REG_IE = 0x200,
148	REG_IF = 0x202,
149	REG_WAITCNT = 0x204,
150	REG_IME = 0x208,
151
152	REG_MAX = 0x20A,
153
154	REG_POSTFLG = 0x300,
155	REG_HALTCNT = 0x301,
156
157	REG_DEBUG_STRING = 0xFFF600,
158	REG_DEBUG_FLAGS = 0xFFF700,
159	REG_DEBUG_ENABLE = 0xFFF780,
160};
161
162mLOG_DECLARE_CATEGORY(GBA_IO);
163
164extern const char* const GBAIORegisterNames[];
165
166struct GBA;
167void GBAIOInit(struct GBA* gba);
168void GBAIOWrite(struct GBA* gba, uint32_t address, uint16_t value);
169void GBAIOWrite8(struct GBA* gba, uint32_t address, uint8_t value);
170void GBAIOWrite32(struct GBA* gba, uint32_t address, uint32_t value);
171uint16_t GBAIORead(struct GBA* gba, uint32_t address);
172
173bool GBAIOIsReadConstant(uint32_t address);
174
175struct GBASerializedState;
176void GBAIOSerialize(struct GBA* gba, struct GBASerializedState* state);
177void GBAIODeserialize(struct GBA* gba, const struct GBASerializedState* state);
178
179CXX_GUARD_END
180
181#endif