1.1 --- a/src/aica/aica.c	Thu Mar 30 11:26:45 2006 +0000
     1.2 +++ b/src/aica/aica.c	Thu Mar 30 11:27:11 2006 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /**
     1.5 - * $Id: aica.c,v 1.17 2006-03-14 12:45:53 nkeynes Exp $
     1.6 + * $Id: aica.c,v 1.18 2006-03-30 11:27:11 nkeynes Exp $
     1.7   * 
     1.8   * This is the core sound system (ie the bit which does the actual work)
     1.9   *
    1.10 @@ -18,6 +18,7 @@
    1.11  
    1.12  #define MODULE aica_module
    1.13  
    1.14 +#include <time.h>
    1.15  #include "dream.h"
    1.16  #include "dreamcast.h"
    1.17  #include "mem.h"
    1.18 @@ -219,6 +220,30 @@
    1.19      }
    1.20  }
    1.21  
    1.22 +/* 20 years in seconds */
    1.23 +#define RTC_OFFSET 631152000
    1.24 +
    1.25 +int32_t mmio_region_AICARTC_read( uint32_t reg )
    1.26 +{
    1.27 +    struct timeval tv;
    1.28 +
    1.29 +    switch( reg ) {
    1.30 +    case AICA_RTCHI:
    1.31 +	if( gettimeofday( &tv, NULL ) == 0 ) {
    1.32 +	    return ((uint32_t)(tv.tv_sec + RTC_OFFSET)) >> 16;
    1.33 +	}
    1.34 +	break;
    1.35 +    case AICA_RTCLO:
    1.36 +	if( gettimeofday( &tv, NULL ) == 0 ) {
    1.37 +	    return ((uint32_t)(tv.tv_sec + RTC_OFFSET)) & 0xFFFF;
    1.38 +	}
    1.39 +	break;
    1.40 +    }
    1.41 +    return 0;
    1.42 +}
    1.43 +
    1.44 +MMIO_REGION_WRITE_STUBFN( AICARTC )
    1.45 +
    1.46  /**
    1.47   * Translate the channel frequency to a sample rate. The frequency is a
    1.48   * 14-bit floating point number, where bits 0..9 is the mantissa,

     2.1 --- a/src/aica/aica.h	Thu Mar 30 11:26:45 2006 +0000
     2.2 +++ b/src/aica/aica.h	Thu Mar 30 11:27:11 2006 +0000
     2.3 @@ -1,5 +1,5 @@
     2.4  /**
     2.5 - * $Id: aica.h,v 1.8 2006-01-22 22:40:05 nkeynes Exp $
     2.6 + * $Id: aica.h,v 1.9 2006-03-30 11:27:11 nkeynes Exp $
     2.7   * 
     2.8   * MMIO definitions for the AICA sound chip. Note that the regions defined
     2.9   * here are relative to the SH4 memory map (0x00700000 based), rather than
    2.10 @@ -45,10 +45,16 @@
    2.11  LONG_PORT( 0xD04, AICA_IRQCLEAR, PORT_MRW, 0, "AICA IRQ Clear" )
    2.12  MMIO_REGION_END
    2.13  
    2.14 +MMIO_REGION_BEGIN( 0x00710000, AICARTC, "AICA Sound System RTC" )
    2.15 +     LONG_PORT( 0x000, AICA_RTCHI, PORT_R, 0, "RTC High 16-bits" )
    2.16 +     LONG_PORT( 0x004, AICA_RTCLO, PORT_R, 0, "RTC Low 16-bits" )
    2.17 +MMIO_REGION_END
    2.18 +
    2.19  MMIO_REGION_LIST_BEGIN( spu )
    2.20      MMIO_REGION( AICA0 )
    2.21      MMIO_REGION( AICA1 )
    2.22      MMIO_REGION( AICA2 )
    2.23 +    MMIO_REGION( AICARTC )
    2.24  MMIO_REGION_LIST_END
    2.25  
    2.26  void aica_init( void );