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Macros
#define	MIXER_INTERRUPT_SETUP_REGISTER 0x80

#define	MIXER_DMA_SETUP_REGISTER 0x81

#define	MIXER_INTERRUPT_STATUS_REGISTEER 0x82

Functions
void	get_dma (SB16 *sb16)

unsigned char	read_mixer (unsigned short base, unsigned char reg)

unsigned char	get_irq (SB16 *sb16)

Macro Definition Documentation

◆ MIXER_DMA_SETUP_REGISTER

#define MIXER_DMA_SETUP_REGISTER 0x81

Definition at line 2 of file mixer.h.

◆ MIXER_INTERRUPT_SETUP_REGISTER

#define MIXER_INTERRUPT_SETUP_REGISTER 0x80

Definition at line 1 of file mixer.h.

◆ MIXER_INTERRUPT_STATUS_REGISTEER

#define MIXER_INTERRUPT_STATUS_REGISTEER 0x82

Definition at line 3 of file mixer.h.

Function Documentation

◆ get_dma()

void get_dma ( SB16 * sb16 )

Definition at line 38 of file mixer.c.

{
    unsigned char hi,lo,result=read_mixer(sb16->base,MIXER_DMA_SETUP_REGISTER);
  hi=result&0xE0;
  lo=result&0x0B;
  if(hi==0x80) sb16->dma16=7;
  if(hi==0x40) sb16->dma16=6;
  if(hi==0x20) sb16->dma16=5;
 
  if(lo==0x08) sb16->dma8=3;
  if(lo==0x02) sb16->dma8=1;
  if(lo==0x01) sb16->dma8=0;
}

Referenced by sb16_getenvironment().

◆ get_irq()

unsigned char get_irq ( SB16 * sb16 )

Definition at line 26 of file mixer.c.

{
    unsigned char irq;
    irq=(read_mixer(sb16->base,MIXER_INTERRUPT_SETUP_REGISTER)&0x0f);
 
    if(irq==1) sb16->irq=2;
    if(irq==2) sb16->irq=5;
    if(irq==4) sb16->irq=7;
    if(irq==8) sb16->irq=10;
    return 0;
}

Referenced by sb16_getenvironment().

◆ read_mixer()

unsigned char read_mixer	(	unsigned short	base,
		unsigned char	reg
	)

Definition at line 18 of file mixer.c.

{
 
//  outb(base+0x04,reg);
//  return inb(base+0x05);
    return 0;
}

Referenced by get_dma(), and get_irq().

Macros

Functions