a0f70ac053
deltas, but it is possible since I had a few merge conflicts over the last few days while this has been sitting ready to go. (Part 1 was committed to the config files, but cvs aborted grrr..) Approved by: core
92 lines
1.6 KiB
C
92 lines
1.6 KiB
C
|
|
/*
|
|
* Initialization code for OPTI MAD16 interface chip by
|
|
* Davor Jadrijevic <davor@emard.pub.hr>
|
|
* (Included by ad1848.c when MAD16 support is enabled)
|
|
*
|
|
* It looks like MAD16 is similar than the Mozart chip (OAK OTI-601).
|
|
* It could be even possible that these chips are exactly the same. Can
|
|
* anybody confirm this?
|
|
*/
|
|
|
|
static void wr_a_mad16(int base, int v, int a)
|
|
{
|
|
OUTB(a, base + 0xf);
|
|
OUTB(v, base + 0x11);
|
|
}
|
|
|
|
static void wr_b_mad16(int base, int v, int a)
|
|
{
|
|
OUTB(a, base + 0xf);
|
|
OUTB(v, base + 0xd);
|
|
}
|
|
|
|
/*
|
|
static int rd_a_mad16(int base, int a)
|
|
{
|
|
OUTB(a, base + 0xf);
|
|
return INB(base + 0x11);
|
|
}
|
|
*/
|
|
|
|
static int rd_b_mad16(int base, int a)
|
|
{
|
|
OUTB(a, base + 0xf);
|
|
return INB(base + 0xd);
|
|
}
|
|
|
|
/*
|
|
static int rd_0_mad16(int base, int a)
|
|
{
|
|
OUTB(a, base + 0xf);
|
|
return INB(base + 0xf);
|
|
}
|
|
|
|
static void wr_ad(int base, int v, int a)
|
|
{
|
|
OUTB(a, base + 4);
|
|
OUTB(v, base + 5);
|
|
}
|
|
|
|
static int rd_ad(int base, int a)
|
|
{
|
|
OUTB(a, base + 4);
|
|
return INB(base + 5);
|
|
}
|
|
*/
|
|
|
|
static int mad16init(int adr)
|
|
{
|
|
int j;
|
|
long i;
|
|
|
|
static int ad1848_bases[] =
|
|
{ 0x220, -1, -1, 0x240, -1, -1, -1, -1, 0x530, 0xE80, 0xF40, 0x604, 0 };
|
|
|
|
int mad16_base = 0xf80, ad1848_base;
|
|
|
|
|
|
for(j = 0; (j < 16) && (ad1848_bases[j] != 0); j++)
|
|
if(adr == ad1848_bases[j])
|
|
break;
|
|
|
|
if( (ad1848_base = ad1848_bases[j]) < 0x530)
|
|
{
|
|
printk("Unknown MAD16 setting 0x%3X\n", adr);
|
|
return -1;
|
|
}
|
|
|
|
/* printk("OPTi MAD16 WSS at 0x%3X\n", ad1848_base); */
|
|
|
|
rd_b_mad16(mad16_base, 0xe2);
|
|
wr_a_mad16(mad16_base, 0x1a, 0xe2);
|
|
wr_b_mad16(mad16_base, j * 16 + 1, 0xe2);
|
|
wr_a_mad16(mad16_base, 0x1a, 0xe2);
|
|
for( i = 0; i < 10000; i++)
|
|
if( (INB(ad1848_base+4) & 0x80) == 0 )
|
|
break;
|
|
|
|
return 0;
|
|
};
|
|
|