src/audio/mint/SDL_mintaudio_dma8.h
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     1 /*
       
     2     SDL - Simple DirectMedia Layer
       
     3     Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga
       
     4 
       
     5     This library is free software; you can redistribute it and/or
       
     6     modify it under the terms of the GNU Library General Public
       
     7     License as published by the Free Software Foundation; either
       
     8     version 2 of the License, or (at your option) any later version.
       
     9 
       
    10     This library is distributed in the hope that it will be useful,
       
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    13     Library General Public License for more details.
       
    14 
       
    15     You should have received a copy of the GNU Library General Public
       
    16     License along with this library; if not, write to the Free
       
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    18 
       
    19     Sam Lantinga
       
    20     slouken@libsdl.org
       
    21 */
       
    22 
       
    23 /*
       
    24 	DMA 8bits audio definitions
       
    25 
       
    26 	Patrice Mandin
       
    27 */
       
    28 
       
    29 #ifndef _SDL_mintaudio_dma8_h
       
    30 #define _SDL_mintaudio_dma8_h
       
    31 
       
    32 #define DMAAUDIO_IO_BASE (0xffff8900)
       
    33 struct DMAAUDIO_IO_S {
       
    34 	unsigned char int_ctrl;
       
    35 	unsigned char control;
       
    36 
       
    37 	unsigned char dummy1;
       
    38 	unsigned char start_high;
       
    39 	unsigned char dummy2;
       
    40 	unsigned char start_mid;
       
    41 	unsigned char dummy3;
       
    42 	unsigned char start_low;
       
    43 
       
    44 	unsigned char dummy4;
       
    45 	unsigned char cur_high;
       
    46 	unsigned char dummy5;
       
    47 	unsigned char cur_mid;
       
    48 	unsigned char dummy6;
       
    49 	unsigned char cur_low;
       
    50 
       
    51 	unsigned char dummy7;
       
    52 	unsigned char end_high;
       
    53 	unsigned char dummy8;
       
    54 	unsigned char end_mid;
       
    55 	unsigned char dummy9;
       
    56 	unsigned char end_low;
       
    57 
       
    58 	unsigned char dummy10[12];
       
    59 
       
    60 	unsigned char track_select; /* CODEC only */
       
    61 	unsigned char mode;
       
    62 };
       
    63 #define DMAAUDIO_IO ((*(volatile struct DMAAUDIO_IO_S *)DMAAUDIO_IO_BASE))
       
    64 
       
    65 #endif /* _SDL_mintaudio_dma8_h */