2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS kernel
4 * FILE: drivers/dd/sound/mixer.c
10 * 10/23/02: Steven Edwards (Steven_Ed4153@yahoo.com)
18 unsigned char read_mixer(unsigned short base
,unsigned char reg
)
21 // outb(base+0x04,reg);
22 // return inb(base+0x05);
25 unsigned char get_irq(SB16
* sb16
)
28 irq
=(read_mixer(sb16
->base
,MIXER_INTERRUPT_SETUP_REGISTER
)&0x0f);
30 if(irq
==1) sb16
->irq
=2;
31 if(irq
==2) sb16
->irq
=5;
32 if(irq
==4) sb16
->irq
=7;
33 if(irq
==8) sb16
->irq
=10;
37 void get_dma(SB16
* sb16
)
39 unsigned char hi
,lo
,result
=read_mixer(sb16
->base
,MIXER_DMA_SETUP_REGISTER
);
42 if(hi
==0x80) sb16
->dma16
=7;
43 if(hi
==0x40) sb16
->dma16
=6;
44 if(hi
==0x20) sb16
->dma16
=5;
46 if(lo
==0x08) sb16
->dma8
=3;
47 if(lo
==0x02) sb16
->dma8
=1;
48 if(lo
==0x01) sb16
->dma8
=0;