dsp.c File Reference

#include "sb16.h"
#include "dsp.h"

Include dependency graph for dsp.c:

Go to the source code of this file.

Functions
unsigned char	read_dsp (unsigned short base)
sb_status	detect_dsp (SB16 *sb16)
sb_status	reset_dsp (unsigned short base_address)
void	write_dsp (unsigned short base, unsigned char data)

Function Documentation

detect_dsp()

sb_status detect_dsp

(

SB16 *

sb16

)

Definition at line 38 of file dsp.c.

{
    for(base=0x200;base<0x280;base+=0x10)   //Tries to reset all DSP addresses there is
        if(reset_dsp(base)==SB_TRUE)
        {
            sb16->base=base;
            return SB_TRUE;
        }
    return SB_FALSE;
}

Referenced by sb16_getenvironment().

read_dsp()

unsigned char read_dsp

(

unsigned short

base

)

Definition at line 24 of file dsp.c.

{
//  while((inb(base+0x0e)&0x80)==0);    //Wait until there is something to read
//  return  inb(base+0x0a);
    return 0;
}

reset_dsp()

sb_status reset_dsp

(

unsigned short

base_address

)

Definition at line 56 of file dsp.c.

{
//  int delay;
 
//  outb(base_address+DSP_RESET_PORT,1);
//  for(delay=0;delay<0xffff;delay++);
 
//  outb(base_address+DSP_RESET_PORT,0);
//  for(delay=0;delay<0xffff;delay++);
 
//  if((inb(base_address+DSP_READ_STATUS_PORT)&0x80)==0) return SB_FALSE;
 
//  if(inb(base_address+DSP_READ_DATA_PORT)!=0xAA) return SB_FALSE;
 
    return SB_TRUE;
}

Referenced by detect_dsp().

write_dsp()

void write_dsp	(	unsigned short	base,
		unsigned char	data
	)

Definition at line 73 of file dsp.c.

{
//  while ((inb(base+DSP_WRITE_PORT) & 0x80) != 0);
//  outb(base+DSP_WRITE_PORT, data);
}

Referenced by sb16_play().