At Wed, 3 Dec 2003 11:41:23 -0500 (EST),
Jeremy Hall wrote:
>
> there also appears to be a delay of upwards of 2 seconds before it starts
> playing
>
> but I don't have anything more in my logs.
you're using the cvs version, right?
then apply the patch below.
Takashi
Index: alsa-kernel/pci/ac97/ac97_pcm.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/pci/ac97/ac97_pcm.c,v
retrieving revision 1.8
diff -u -r1.8 ac97_pcm.c
--- alsa-kernel/pci/ac97/ac97_pcm.c 3 Dec 2003 13:37:25 -0000 1.8
+++ alsa-kernel/pci/ac97/ac97_pcm.c 3 Dec 2003 15:58:24 -0000
@@ -418,16 +418,19 @@
continue;
avail_slots[0][i] = get_pslots(codec, &rate_table[0][i]);
avail_slots[1][i] = get_cslots(codec);
+ printk(KERN_DEBUG "checking codec %d, slots = 0x%x / 0x%x\n", i,
avail_slots[0][i], avail_slots[1][i]);
if (!(codec->scaps & AC97_SCAP_INDEP_SDIN)) {
for (j = 0; j < i; j++) {
if (bus->codec[j])
avail_slots[1][i] &= ~avail_slots[1][j];
}
+ printk(KERN_DEBUG "-> capture slots = 0x%x\n",
avail_slots[1][i]);
}
}
/* FIXME: add double rate allocation */
/* first step - exclusive devices */
for (i = 0; i < pcms_count; i++) {
+ printk(KERN_DEBUG "probing pcm %d\n", i);
pcm = &pcms[i];
rpcm = &rpcms[i];
/* low-level driver thinks that it's more clever */
@@ -445,19 +448,23 @@
for (j = 0; j < 4 && slots; j++) {
if (!bus->codec[j])
continue;
+ printk(KERN_DEBUG ".. probing codec %d, slots = 0x%x\n", j,
slots);
rates = ~0;
if (pcm->exclusive) {
/* exclusive access */
tmp = avail_slots[pcm->stream][j] & slots;
+ printk(KERN_DEBUG ".. tmp = 0x%x\n", tmp);
for (k = 0; k < i; k++) {
if (rpcm->stream == rpcms[k].stream)
tmp &= ~rpcms[k].r[0].rslots[j];
}
+ printk(KERN_DEBUG ".. tmp = 0x%x\n", tmp);
if (tmp) {
rpcm->r[0].rslots[j] = tmp;
rpcm->r[0].codec[j] = bus->codec[j];
rpcm->r[0].rate_table[j] =
rate_table[pcm->stream][j];
rates = get_rates(rpcm, j, tmp, 0);
+ printk(KERN_DEBUG ".. rslots = 0x%x,
rate_table = %d, rates = 0x%x\n", tmp, rpcm->r[0].rate_table[j], rates);
avail_slots[pcm->stream][j] &= ~tmp;
}
} else {
@@ -476,6 +483,7 @@
}
if (rpcm->rates == ~0)
rpcm->rates = 0; /* not used */
+ printk(KERN_DEBUG "--> slots = 0x%x, rates = 0x%x\n",
rpcm->r[0].slots, rpcm->rates);
}
bus->pcms_count = pcms_count;
bus->pcms = rpcms;
@@ -500,6 +508,7 @@
unsigned char reg;
int err = 0;
+ printk(KERN_DEBUG "ac97_pcm_open: rate = %d, cfg = %d, slots = 0x%x\n", rate,
cfg, slots);
if (rate > 48000) /* FIXME: add support for double rate */
return -EINVAL;
bus = pcm->bus;
@@ -548,9 +557,10 @@
}
if (reg_ok & (1 << (reg - AC97_PCM_FRONT_DAC_RATE)))
continue;
+ printk(KERN_DEBUG "setting ac97 reg 0x%x to rate
%d\n", reg, rate);
err = snd_ac97_set_rate(pcm->r[r].codec[cidx], reg,
rate);
if (err < 0)
- snd_printk(KERN_ERR "error in
snd_ac97_set_rate: cidx=%d, reg=0x%x, rate=%d\n, err=%d", cidx, reg, rate, err);
+ snd_printk(KERN_ERR "error in
snd_ac97_set_rate: cidx=%d, reg=0x%x, rate=%d, err=%d\n", cidx, reg, rate, err);
else
reg_ok |= (1 << (reg -
AC97_PCM_FRONT_DAC_RATE));
}
