void
pcihinv(Pcidev* p)
{
pcicfginit();
lock(&pcicfginitlock);
if(p == nil){
p = pciroot;
print("bus dev type vid did intl memory\n");
}
pcilhinv(p);
unlock(&pcicfginitlock);
}
Pcidev*
pcimatch(Pcidev* prev, int vid, int did)
{
pcicfginit();
prev = prev? prev->list: pcilist;
for(; prev != nil; prev = prev->list){
if((vid == 0 || prev->vid == vid)
&& (did == 0 || prev->did == did))
break;
}
return prev;
}
static int
pcicfgrw(int tbdf, int r, int data, int rw, int w)
{
int o, x, er;
pcicfginit();
if(pcicfgmode != 1)
return -1;
if(BUSDNO(tbdf) > Maxdev)
return -1;
lock(&pcicfglock);
o = r & 4-w;
er = r&0xfc | (r & 0xf00)<<16;
outl(PciADDR, 0x80000000|BUSBDF(tbdf)|er);
if(rw == Read){
x = -1;
switch(w){
case 1:
x = inb(PciDATA+o);
break;
case 2:
x = ins(PciDATA+o);
break;
case 4:
x = inl(PciDATA+o);
break;
}
}else{
x = 0;
switch(w){
case 1:
outb(PciDATA+o, data);
break;
case 2:
outs(PciDATA+o, data);
break;
case 4:
outl(PciDATA+o, data);
break;
}
}
// outl(PciADDR, 0);
unlock(&pcicfglock);
return x;
}
Pcidev*
pcimatch(Pcidev* prev, int vid, int did)
{
if(pcilist == nil)
pcicfginit();
if(prev == nil)
prev = pcilist;
else
prev = prev->list;
while(prev != nil) {
if(prev->vid == vid && (did == 0 || prev->did == did))
break;
prev = prev->list;
}
return prev;
}
