static int rt_setvol(struct rtrack *rt, int vol)
{
int i;
mutex_lock(&rt->lock);
if (vol == rt->curvol) {
if (rt->muted) {
rt->muted = 0;
outb(0xd8, rt->io);
}
mutex_unlock(&rt->lock);
return 0;
}
if (vol == 0) {
outb(0x48, rt->io);
sleep_delay(2000000);
outb(0xd0, rt->io);
rt->curvol = 0;
mutex_unlock(&rt->lock);
return 0;
}
rt->muted = 0;
if (vol > rt->curvol)
for (i = rt->curvol; i < vol; i++)
rt_incvol(rt);
else
for (i = rt->curvol; i > vol; i--)
rt_decvol(rt);
rt->curvol = vol;
mutex_unlock(&rt->lock);
return 0;
}
static int rt_setvol(struct rtrack *rt, int vol)
{
int i;
mutex_lock(&rt->lock);
if (vol == rt->curvol) { /* requested volume = current */
if (rt->muted) { /* user is unmuting the card */
rt->muted = 0;
outb(0xd8, rt->io); /* enable card */
}
mutex_unlock(&rt->lock);
return 0;
}
if (vol == 0) { /* volume = 0 means mute the card */
outb(0x48, rt->io); /* volume down but still "on" */
msleep(2000); /* make sure it's totally down */
outb(0xd0, rt->io); /* volume steady, off */
rt->curvol = 0; /* track the volume state! */
mutex_unlock(&rt->lock);
return 0;
}
rt->muted = 0;
if (vol > rt->curvol)
for (i = rt->curvol; i < vol; i++)
rt_incvol(rt);
else
for (i = rt->curvol; i > vol; i--)
rt_decvol(rt);
rt->curvol = vol;
mutex_unlock(&rt->lock);
return 0;
}
static int rt_setvol(struct rt_device *dev, int vol)
{
int i;
mutex_lock(&lock);
if(vol == dev->curvol) { /* requested volume = current */
if (dev->muted) { /* user is unmuting the card */
dev->muted = 0;
outb (0xd8, io); /* enable card */
}
mutex_unlock(&lock);
return 0;
}
if(vol == 0) { /* volume = 0 means mute the card */
outb(0x48, io); /* volume down but still "on" */
sleep_delay(2000000); /* make sure it's totally down */
outb(0xd0, io); /* volume steady, off */
dev->curvol = 0; /* track the volume state! */
mutex_unlock(&lock);
return 0;
}
dev->muted = 0;
if(vol > dev->curvol)
for(i = dev->curvol; i < vol; i++)
rt_incvol();
else
for(i = dev->curvol; i > vol; i--)
rt_decvol();
dev->curvol = vol;
mutex_unlock(&lock);
return 0;
}
