nkeynes@11: /**
nkeynes@131:  * $Id: aica.h,v 1.9 2006-03-30 11:27:11 nkeynes Exp $
nkeynes@11:  * 
nkeynes@11:  * MMIO definitions for the AICA sound chip. Note that the regions defined
nkeynes@11:  * here are relative to the SH4 memory map (0x00700000 based), rather than
nkeynes@11:  * the ARM addresses (0x00800000 based).
nkeynes@11:  *
nkeynes@11:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@11:  *
nkeynes@11:  * This program is free software; you can redistribute it and/or modify
nkeynes@11:  * it under the terms of the GNU General Public License as published by
nkeynes@11:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@11:  * (at your option) any later version.
nkeynes@11:  *
nkeynes@11:  * This program is distributed in the hope that it will be useful,
nkeynes@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@11:  * GNU General Public License for more details.
nkeynes@11:  */
nkeynes@11: 
nkeynes@11: #include "mmio.h"
nkeynes@11: 
nkeynes@11: MMIO_REGION_BEGIN( 0x00700000, AICA0, "AICA Sound System 0-31" )
nkeynes@11: LONG_PORT( 0x000, AICACH0, PORT_MRW, UNDEFINED, "Channel 0" )
nkeynes@11: MMIO_REGION_END
nkeynes@11: 
nkeynes@11: MMIO_REGION_BEGIN( 0x00701000, AICA1, "AICA Sound System 32-63" )
nkeynes@11: LONG_PORT( 0x000, AICACH32, PORT_MRW, UNDEFINED, "Channel 32" )
nkeynes@11: MMIO_REGION_END
nkeynes@11: 
nkeynes@11: MMIO_REGION_BEGIN( 0x00702000, AICA2, "AICA Sound System Control" )
nkeynes@40: LONG_PORT( 0x040, CDDA_VOL_L, PORT_MRW, 0, "CDDA Volume left" )
nkeynes@40: LONG_PORT( 0x044, CDDA_VOL_R, PORT_MRW, 0, "CDDA Volume right" )
nkeynes@40: LONG_PORT( 0x800, VOL_MASTER, PORT_MRW, UNDEFINED, "Master volume" )
nkeynes@61: LONG_PORT( 0x808, AICA_UNK7, PORT_MRW, 0, "AICA ??? 7" )
nkeynes@66: LONG_PORT( 0x880, AICA_UNK6, PORT_MRW, 0, "AICA ??? 6" )
nkeynes@66: LONG_PORT( 0x890, AICA_TIMER, PORT_MRW, 0, "AICA Timer" )
nkeynes@46: LONG_PORT( 0x89C, AICA_UNK1, PORT_MRW, 0, "AICA ??? 1" )
nkeynes@66: LONG_PORT( 0x8A4, AICA_TCR, PORT_MRW, 0, "AICA Timer Control?" )
nkeynes@46: BYTE_PORT( 0x8A8, AICA_UNK3, PORT_MRW, 0, "AICA ??? 3" )
nkeynes@46: BYTE_PORT( 0x8AC, AICA_UNK4, PORT_MRW, 0, "AICA ??? 4" )
nkeynes@46: BYTE_PORT( 0x8B0, AICA_UNK5, PORT_MRW, 0, "AICA ??? 5" )
nkeynes@86: LONG_PORT( 0xC00, AICA_RESET,PORT_MRW, 1, "AICA reset" )
nkeynes@62: LONG_PORT( 0xD00, AICA_IRQ, PORT_MR, 0, "AICA IRQ Pending" )
nkeynes@61: LONG_PORT( 0xD04, AICA_IRQCLEAR, PORT_MRW, 0, "AICA IRQ Clear" )
nkeynes@11: MMIO_REGION_END
nkeynes@11: 
nkeynes@131: MMIO_REGION_BEGIN( 0x00710000, AICARTC, "AICA Sound System RTC" )
nkeynes@131:      LONG_PORT( 0x000, AICA_RTCHI, PORT_R, 0, "RTC High 16-bits" )
nkeynes@131:      LONG_PORT( 0x004, AICA_RTCLO, PORT_R, 0, "RTC Low 16-bits" )
nkeynes@131: MMIO_REGION_END
nkeynes@131: 
nkeynes@11: MMIO_REGION_LIST_BEGIN( spu )
nkeynes@11:     MMIO_REGION( AICA0 )
nkeynes@11:     MMIO_REGION( AICA1 )
nkeynes@11:     MMIO_REGION( AICA2 )
nkeynes@131:     MMIO_REGION( AICARTC )
nkeynes@11: MMIO_REGION_LIST_END
nkeynes@11: 
nkeynes@11: void aica_init( void );
nkeynes@11: void aica_reset( void );
nkeynes@86: void aica_enable( void );
nkeynes@61: 
nkeynes@61: #define AICA_EVENT_TIMER 2
nkeynes@61: #define AICA_EVENT_OTHER 5
nkeynes@61: 
nkeynes@61: void aica_event( int event );
nkeynes@66: void aica_write_channel( int channel, uint32_t addr, uint32_t val );
nkeynes@66: 
nkeynes@66: /**
nkeynes@66:  * The AICA core runs at 44100 samples/second, regardless of what we're
nkeynes@66:  * actually outputing.
nkeynes@66:  */
nkeynes@66: #define AICA_SAMPLE_RATE 44100
nkeynes@66: 
nkeynes@66: /**
nkeynes@66:  * This is only used to determine number of instructions to execute
nkeynes@66:  * per sample, which isn't cycle accurate at the moment.
nkeynes@66:  */
nkeynes@66: #define AICA_SAMPLE_PERIOD (1000000000 / 44100)