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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2012 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 (at) libsdl.org
     21 */
     22 #include "SDL_config.h"
     23 
     24 /*
     25 	DMA 8bits and Falcon Codec audio definitions
     26 
     27 	Patrice Mandin, Didier Mquignon
     28 */
     29 
     30 #ifndef _SDL_mintaudio_dma8_h
     31 #define _SDL_mintaudio_dma8_h
     32 
     33 #define DMAAUDIO_IO_BASE (0xffff8900)
     34 struct DMAAUDIO_IO_S {
     35 	unsigned char int_ctrl;
     36 	unsigned char control;
     37 
     38 	unsigned char dummy1;
     39 	unsigned char start_high;
     40 	unsigned char dummy2;
     41 	unsigned char start_mid;
     42 	unsigned char dummy3;
     43 	unsigned char start_low;
     44 
     45 	unsigned char dummy4;
     46 	unsigned char cur_high;
     47 	unsigned char dummy5;
     48 	unsigned char cur_mid;
     49 	unsigned char dummy6;
     50 	unsigned char cur_low;
     51 
     52 	unsigned char dummy7;
     53 	unsigned char end_high;
     54 	unsigned char dummy8;
     55 	unsigned char end_mid;
     56 	unsigned char dummy9;
     57 	unsigned char end_low;
     58 
     59 	unsigned char dummy10[12];
     60 
     61 	unsigned char track_ctrl; /* CODEC only */
     62 	unsigned char sound_ctrl;
     63 	unsigned short sound_data;
     64 	unsigned short sound_mask;
     65 
     66 	unsigned char dummy11[10];
     67 
     68 	unsigned short dev_ctrl;
     69 	unsigned short dest_ctrl;
     70 	unsigned short sync_div;
     71 	unsigned char track_rec;
     72 	unsigned char adderin_input;
     73 	unsigned char channel_input;
     74 	unsigned char channel_amplification;
     75 	unsigned char channel_reduction;
     76 
     77 	unsigned char dummy12[6];
     78 
     79 	unsigned char data_direction;
     80 	unsigned char dummy13;
     81 	unsigned char dev_data;
     82 };
     83 #define DMAAUDIO_IO ((*(volatile struct DMAAUDIO_IO_S *)DMAAUDIO_IO_BASE))
     84 
     85 #endif /* _SDL_mintaudio_dma8_h */
     86