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lxdream.org :: lxdream/src/aica/aica.h
lxdream 0.9.1
released Jun 29
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filename src/aica/aica.h
changeset 86:f151e63f9754
prev66:2ec5b6eb75e5
next131:4c25f1b20664
author nkeynes
date Sun Jan 22 22:40:05 2006 +0000 (14 years ago)
permissions -rw-r--r--
last change Add aica_enable() function for aica-only mode, disable by default
Halt ARM on invalid address but leave everything else running
Error if ESD can't start
file annotate diff log raw
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/**
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 * $Id: aica.h,v 1.8 2006-01-22 22:40:05 nkeynes Exp $
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 * 
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 * MMIO definitions for the AICA sound chip. Note that the regions defined
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 * here are relative to the SH4 memory map (0x00700000 based), rather than
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 * the ARM addresses (0x00800000 based).
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 *
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 * Copyright (c) 2005 Nathan Keynes.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 */
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#include "mmio.h"
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MMIO_REGION_BEGIN( 0x00700000, AICA0, "AICA Sound System 0-31" )
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LONG_PORT( 0x000, AICACH0, PORT_MRW, UNDEFINED, "Channel 0" )
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MMIO_REGION_END
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MMIO_REGION_BEGIN( 0x00701000, AICA1, "AICA Sound System 32-63" )
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LONG_PORT( 0x000, AICACH32, PORT_MRW, UNDEFINED, "Channel 32" )
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MMIO_REGION_END
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MMIO_REGION_BEGIN( 0x00702000, AICA2, "AICA Sound System Control" )
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LONG_PORT( 0x040, CDDA_VOL_L, PORT_MRW, 0, "CDDA Volume left" )
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LONG_PORT( 0x044, CDDA_VOL_R, PORT_MRW, 0, "CDDA Volume right" )
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LONG_PORT( 0x800, VOL_MASTER, PORT_MRW, UNDEFINED, "Master volume" )
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LONG_PORT( 0x808, AICA_UNK7, PORT_MRW, 0, "AICA ??? 7" )
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LONG_PORT( 0x880, AICA_UNK6, PORT_MRW, 0, "AICA ??? 6" )
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LONG_PORT( 0x890, AICA_TIMER, PORT_MRW, 0, "AICA Timer" )
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LONG_PORT( 0x89C, AICA_UNK1, PORT_MRW, 0, "AICA ??? 1" )
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LONG_PORT( 0x8A4, AICA_TCR, PORT_MRW, 0, "AICA Timer Control?" )
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BYTE_PORT( 0x8A8, AICA_UNK3, PORT_MRW, 0, "AICA ??? 3" )
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BYTE_PORT( 0x8AC, AICA_UNK4, PORT_MRW, 0, "AICA ??? 4" )
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BYTE_PORT( 0x8B0, AICA_UNK5, PORT_MRW, 0, "AICA ??? 5" )
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LONG_PORT( 0xC00, AICA_RESET,PORT_MRW, 1, "AICA reset" )
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LONG_PORT( 0xD00, AICA_IRQ, PORT_MR, 0, "AICA IRQ Pending" )
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LONG_PORT( 0xD04, AICA_IRQCLEAR, PORT_MRW, 0, "AICA IRQ Clear" )
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MMIO_REGION_END
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MMIO_REGION_LIST_BEGIN( spu )
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    MMIO_REGION( AICA0 )
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    MMIO_REGION( AICA1 )
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    MMIO_REGION( AICA2 )
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MMIO_REGION_LIST_END
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void aica_init( void );
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void aica_reset( void );
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void aica_enable( void );
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#define AICA_EVENT_TIMER 2
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#define AICA_EVENT_OTHER 5
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void aica_event( int event );
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void aica_write_channel( int channel, uint32_t addr, uint32_t val );
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/**
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 * The AICA core runs at 44100 samples/second, regardless of what we're
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 * actually outputing.
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 */
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#define AICA_SAMPLE_RATE 44100
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/**
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 * This is only used to determine number of instructions to execute
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 * per sample, which isn't cycle accurate at the moment.
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 */
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#define AICA_SAMPLE_PERIOD (1000000000 / 44100)
.