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lxdream.org :: lxdream/src/aica/aica.c :: diff
lxdream 0.9.1
released Jun 29
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filename src/aica/aica.c
changeset 301:1ace395139c3
prev241:776e46e58d6d
next431:248dd77a9e44
author nkeynes
date Wed Jan 17 09:37:22 2007 +0000 (14 years ago)
permissions -rw-r--r--
last change Implement writing to the RTC registers
file annotate diff log raw
1.1 --- a/src/aica/aica.c Fri Dec 15 10:19:06 2006 +0000
1.2 +++ b/src/aica/aica.c Wed Jan 17 09:37:22 2007 +0000
1.3 @@ -1,5 +1,5 @@
1.4 /**
1.5 - * $Id: aica.c,v 1.20 2006-12-15 10:19:06 nkeynes Exp $
1.6 + * $Id: aica.c,v 1.21 2007-01-17 09:37:22 nkeynes Exp $
1.7 *
1.8 * This is the core sound system (ie the bit which does the actual work)
1.9 *
1.10 @@ -247,8 +247,27 @@
1.11 return rv;
1.12 }
1.13
1.14 -MMIO_REGION_WRITE_STUBFN( AICARTC )
1.15
1.16 +void mmio_region_AICARTC_write( uint32_t reg, uint32_t val )
1.17 +{
1.18 + switch( reg ) {
1.19 + case AICA_RTCEN:
1.20 + MMIO_WRITE( AICARTC, reg, val&0x01 );
1.21 + break;
1.22 + case AICA_RTCLO:
1.23 + if( MMIO_READ( AICARTC, AICA_RTCEN ) & 0x01 ) {
1.24 + aica_time_of_day = (aica_time_of_day & 0xFFFF0000) | (val & 0xFFFF);
1.25 + }
1.26 + break;
1.27 + case AICA_RTCHI:
1.28 + if( MMIO_READ( AICARTC, AICA_RTCEN ) & 0x01 ) {
1.29 + aica_time_of_day = (aica_time_of_day & 0xFFFF) | (val<<16);
1.30 + MMIO_WRITE( AICARTC, AICA_RTCEN, 0 );
1.31 + }
1.32 + break;
1.33 + }
1.34 +}
1.35 +
1.36 /**
1.37 * Translate the channel frequency to a sample rate. The frequency is a
1.38 * 14-bit floating point number, where bits 0..9 is the mantissa,
.