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audio/hda: added archfile command interface

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ment 2011-06-27 23:01:58 +02:00
parent 0918ce10dc
commit 7b6675ff1a
1 changed files with 46 additions and 1 deletions
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47
sys/src/9/pc/audiohda.c
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@ -277,9 +277,9 @@ struct Ctlr {
uchar *mem;
ulong size;
Queue *q;
ulong *corb;
ulong corbsize;
ulong *rirb;
ulong rirbsize;
@ -370,6 +370,8 @@ static char *pinloc2[] = {
"other",
};
Ctlr *lastcard;
static int
waitup8(Ctlr *ctlr, int reg, uchar mask, uchar set)
{
@ -1264,6 +1266,45 @@ hdamatch(Pcidev *p)
return nil;
}
static long
hdacmdread(Chan *, void *a, long n, vlong)
{
Ctlr *ctlr;
ctlr = lastcard;
if(ctlr == nil)
error(Enodev);
if(n & 7)
error(Ebadarg);
return qread(ctlr->q, a, n);
}
static long
hdacmdwrite(Chan *, void *a, long n, vlong)
{
Ctlr *ctlr;
ulong *lp;
int i;
uint w[2];
ctlr = lastcard;
if(ctlr == nil)
error(Enodev);
if(n & 3)
error(Ebadarg);
lp = a;
qlock(ctlr);
for(i=0; i<n/4; i++){
if(hdacmd(ctlr, lp[i], w) < 0){
w[0] = 0;
w[1] = ~0;
}
qproduce(ctlr->q, w, sizeof(w));
}
qunlock(ctlr);
return n;
}
static int
hdareset(Audio *adev)
{
@ -1304,6 +1345,7 @@ Found:
ctlr->no = adev->ctlrno;
ctlr->size = p->mem[0].size;
ctlr->q = qopen(256, 0, 0, 0);
ctlr->mem = vmap(p->mem[0].bar & ~0x0F, ctlr->size);
if(ctlr->mem == nil){
print("#A%d: can't map %.8lux\n", ctlr->no, p->mem[0].bar);
@ -1345,6 +1387,8 @@ Found:
adev->ctl = hdactl;
intrenable(irq, hdainterrupt, adev, tbdf, "hda");
lastcard = ctlr;
addarchfile("hdacmd", 0664, hdacmdread, hdacmdwrite);
return 0;
}
@ -1354,3 +1398,4 @@ audiohdalink(void)
{
addaudiocard("hda", hdareset);
}