lxdream 0.9.1| filename | src/aica/aica.h |
| changeset | 131:4c25f1b20664 |
| prev | 86:f151e63f9754 |
| next | 301:1ace395139c3 |
| author | nkeynes |
| date | Wed Jan 03 09:00:17 2007 +0000 (17 years ago) |
| permissions | -rw-r--r-- |
| last change | Adjust timers when they're read rather than waiting until the next time slice. Also temporarily cut the CPU time by 4. Initialize the FRQCR register to 0x0E0A for convenience |
| view | annotate | diff | log | raw |
1 /**
2 * $Id: aica.h,v 1.9 2006-03-30 11:27:11 nkeynes Exp $
3 *
4 * MMIO definitions for the AICA sound chip. Note that the regions defined
5 * here are relative to the SH4 memory map (0x00700000 based), rather than
6 * the ARM addresses (0x00800000 based).
7 *
8 * Copyright (c) 2005 Nathan Keynes.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 */
21 #include "mmio.h"
23 MMIO_REGION_BEGIN( 0x00700000, AICA0, "AICA Sound System 0-31" )
24 LONG_PORT( 0x000, AICACH0, PORT_MRW, UNDEFINED, "Channel 0" )
25 MMIO_REGION_END
27 MMIO_REGION_BEGIN( 0x00701000, AICA1, "AICA Sound System 32-63" )
28 LONG_PORT( 0x000, AICACH32, PORT_MRW, UNDEFINED, "Channel 32" )
29 MMIO_REGION_END
31 MMIO_REGION_BEGIN( 0x00702000, AICA2, "AICA Sound System Control" )
32 LONG_PORT( 0x040, CDDA_VOL_L, PORT_MRW, 0, "CDDA Volume left" )
33 LONG_PORT( 0x044, CDDA_VOL_R, PORT_MRW, 0, "CDDA Volume right" )
34 LONG_PORT( 0x800, VOL_MASTER, PORT_MRW, UNDEFINED, "Master volume" )
35 LONG_PORT( 0x808, AICA_UNK7, PORT_MRW, 0, "AICA ??? 7" )
36 LONG_PORT( 0x880, AICA_UNK6, PORT_MRW, 0, "AICA ??? 6" )
37 LONG_PORT( 0x890, AICA_TIMER, PORT_MRW, 0, "AICA Timer" )
38 LONG_PORT( 0x89C, AICA_UNK1, PORT_MRW, 0, "AICA ??? 1" )
39 LONG_PORT( 0x8A4, AICA_TCR, PORT_MRW, 0, "AICA Timer Control?" )
40 BYTE_PORT( 0x8A8, AICA_UNK3, PORT_MRW, 0, "AICA ??? 3" )
41 BYTE_PORT( 0x8AC, AICA_UNK4, PORT_MRW, 0, "AICA ??? 4" )
42 BYTE_PORT( 0x8B0, AICA_UNK5, PORT_MRW, 0, "AICA ??? 5" )
43 LONG_PORT( 0xC00, AICA_RESET,PORT_MRW, 1, "AICA reset" )
44 LONG_PORT( 0xD00, AICA_IRQ, PORT_MR, 0, "AICA IRQ Pending" )
45 LONG_PORT( 0xD04, AICA_IRQCLEAR, PORT_MRW, 0, "AICA IRQ Clear" )
46 MMIO_REGION_END
48 MMIO_REGION_BEGIN( 0x00710000, AICARTC, "AICA Sound System RTC" )
49 LONG_PORT( 0x000, AICA_RTCHI, PORT_R, 0, "RTC High 16-bits" )
50 LONG_PORT( 0x004, AICA_RTCLO, PORT_R, 0, "RTC Low 16-bits" )
51 MMIO_REGION_END
53 MMIO_REGION_LIST_BEGIN( spu )
54 MMIO_REGION( AICA0 )
55 MMIO_REGION( AICA1 )
56 MMIO_REGION( AICA2 )
57 MMIO_REGION( AICARTC )
58 MMIO_REGION_LIST_END
60 void aica_init( void );
61 void aica_reset( void );
62 void aica_enable( void );
64 #define AICA_EVENT_TIMER 2
65 #define AICA_EVENT_OTHER 5
67 void aica_event( int event );
68 void aica_write_channel( int channel, uint32_t addr, uint32_t val );
70 /**
71 * The AICA core runs at 44100 samples/second, regardless of what we're
72 * actually outputing.
73 */
74 #define AICA_SAMPLE_RATE 44100
76 /**
77 * This is only used to determine number of instructions to execute
78 * per sample, which isn't cycle accurate at the moment.
79 */
80 #define AICA_SAMPLE_PERIOD (1000000000 / 44100)
.