annotate src/pin8gba_sound.h @ 0:c84446dfb3f5

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author paulo@localhost
date Fri, 13 Mar 2009 00:39:12 -0700
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paulo@0 1 /*
paulo@0 2 * pin8gba_sound.h
paulo@0 3 * Header file for GBA sound registers
paulo@0 4 */
paulo@0 5
paulo@0 6
paulo@0 7 /* Copyright 2001-2006 Damian Yerrick
paulo@0 8
paulo@0 9 (insert zlib license here)
paulo@0 10
paulo@0 11 */
paulo@0 12
paulo@0 13
paulo@0 14 /* Why the funny register names?
paulo@0 15
paulo@0 16 The register names do not match the names in the official GBA
paulo@0 17 documentation. I choose the names that seem most logical to me.
paulo@0 18 In addition, I do slick macro tricks with the VRAM addresses for
paulo@0 19 maps and the like and with registers that control timers, DMA,
paulo@0 20 and backgrounds. The gba.h that comes with wintermute's libgba
paulo@0 21 incorporates some but not all of these tricks. In addition,
paulo@0 22 the names in gba.h for the sound registers aren't descriptive
paulo@0 23 at all.
paulo@0 24
paulo@0 25 */
paulo@0 26
paulo@0 27 #ifndef PIN8GBA_SOUND_H
paulo@0 28 #ifdef __cplusplus
paulo@0 29 extern "C" {
paulo@0 30 #endif
paulo@0 31 #define PIN8GBA_SOUND_H
paulo@0 32
paulo@0 33
paulo@0 34 #define DMGSNDCTRL (*(volatile u16 *)0x04000080)
paulo@0 35 #define DMGSNDCTRL_LVOL(x) (x)
paulo@0 36 #define DMGSNDCTRL_RVOL(x) ((x) << 4)
paulo@0 37 #define DMGSNDCTRL_LSQR1 0x0100
paulo@0 38 #define DMGSNDCTRL_LSQR2 0x0200
paulo@0 39 #define DMGSNDCTRL_LTRI 0x0400
paulo@0 40 #define DMGSNDCTRL_LNOISE 0x0800
paulo@0 41 #define DMGSNDCTRL_RSQR1 0x1000
paulo@0 42 #define DMGSNDCTRL_RSQR2 0x2000
paulo@0 43 #define DMGSNDCTRL_RTRI 0x4000
paulo@0 44 #define DMGSNDCTRL_RNOISE 0x8000
paulo@0 45
paulo@0 46 #define DSOUNDCTRL (*(volatile u16 *)0x04000082)
paulo@0 47 #define DSOUNDCTRL_DMG25 0x0000
paulo@0 48 #define DSOUNDCTRL_DMG50 0x0001
paulo@0 49 #define DSOUNDCTRL_DMG100 0x0002
paulo@0 50 #define DSOUNDCTRL_A50 0x0000
paulo@0 51 #define DSOUNDCTRL_A100 0x0004
paulo@0 52 #define DSOUNDCTRL_B50 0x0000
paulo@0 53 #define DSOUNDCTRL_B100 0x0008
paulo@0 54 #define DSOUNDCTRL_AR 0x0100
paulo@0 55 #define DSOUNDCTRL_AL 0x0200
paulo@0 56 #define DSOUNDCTRL_ATIMER(x) ((x) << 10)
paulo@0 57 #define DSOUNDCTRL_ARESET 0x0400
paulo@0 58 #define DSOUNDCTRL_BR 0x1000
paulo@0 59 #define DSOUNDCTRL_BL 0x2000
paulo@0 60 #define DSOUNDCTRL_BTIMER(x) ((x) << 14)
paulo@0 61 #define DSOUNDCTRL_BRESET 0x8000
paulo@0 62
paulo@0 63 #define SNDSTAT (*(volatile u16*)0x04000084)
paulo@0 64 #define SNDSTAT_SQR1 0x0001
paulo@0 65 #define SNDSTAT_SQR2 0x0002
paulo@0 66 #define SNDSTAT_TRI 0x0004
paulo@0 67 #define SNDSTAT_NOISE 0x0008
paulo@0 68 #define SNDSTAT_ENABLE 0x0080
paulo@0 69
paulo@0 70 #define SNDBIAS (*(volatile u16 *)0x04000088)
paulo@0 71 #define SETSNDRES(x) SNDBIAS = (SNDBIAS & 0x3fff) | (x << 14)
paulo@0 72
paulo@0 73 #define DSOUND_FIFOA (*(volatile u32 *)0x040000a0)
paulo@0 74 #define DSOUND_FIFOB (*(volatile u32 *)0x040000a4)
paulo@0 75
paulo@0 76
paulo@0 77 #define SQR1SWEEP (*(volatile u16 *)0x04000060)
paulo@0 78 #define SQR1SWEEP_OFF 0x0008
paulo@0 79
paulo@0 80 #define SQR1CTRL (*(volatile u16 *)0x04000062)
paulo@0 81 #define SQR2CTRL (*(volatile u16 *)0x04000068)
paulo@0 82 #define NOISECTRL (*(volatile u16 *)0x04000078)
paulo@0 83 #define SQR_DUTY(n) ((n) << 6)
paulo@0 84 #define SQR_VOL(n) ((n) << 12)
paulo@0 85
paulo@0 86 #define SQR1FREQ (*(volatile u16 *)0x04000064)
paulo@0 87 #define SQR2FREQ (*(volatile u16 *)0x0400006c)
paulo@0 88 #define TRIFREQ (*(volatile u16 *)0x04000074)
paulo@0 89 #define FREQ_HOLD 0x0000
paulo@0 90 #define FREQ_TIMED 0x4000
paulo@0 91 #define FREQ_RESET 0x8000
paulo@0 92
paulo@0 93 #define NOISEFREQ (*(volatile u16 *)0x0400007c)
paulo@0 94 #define NOISEFREQ_127 0x0008
paulo@0 95 #define NOISEFREQ_OCT(x) ((x) << 4)
paulo@0 96
paulo@0 97 #define TRICTRL (*(volatile u16 *)0x04000070)
paulo@0 98 #define TRICTRL_2X32 0x0000
paulo@0 99 #define TRICTRL_1X64 0x0020
paulo@0 100 #define TRICTRL_BANK(x) ((x) << 6)
paulo@0 101 #define TRICTRL_ENABLE 0x0080
paulo@0 102
paulo@0 103 #define TRILENVOL (*(volatile u16 *)0x04000072)
paulo@0 104 #define TRILENVOL_LEN(x) (256 - (x))
paulo@0 105 #define TRILENVOL_MUTE 0x0000
paulo@0 106 #define TRILENVOL_25 0x6000
paulo@0 107 #define TRILENVOL_50 0x4000
paulo@0 108 #define TRILENVOL_75 0x8000
paulo@0 109 #define TRILENVOL_100 0x2000
paulo@0 110
paulo@0 111 #define TRIWAVERAM ((volatile u32 *)0x04000090)
paulo@0 112
paulo@0 113
paulo@0 114 #ifdef __cplusplus
paulo@0 115 }
paulo@0 116 #endif
paulo@0 117 #endif