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update to return correct blocksize- these chips have a fixed irq rate, so

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block size varies only with format and rate.
This commit is contained in:
Cameron Grant 2000-12-25 01:42:13 +00:00
parent 175f26d6ed
commit 6a2e12e0dd
1 changed files with 8 additions and 0 deletions
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8
sys/dev/sound/pci/ds1.c
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@ -39,6 +39,7 @@
#define DS1_CHANS 4
#define DS1_RECPRIMARY 0
#define DS1_IRQHZ ((48000 << 8) / 256)
struct pbank {
volatile u_int32_t Format;
@ -521,6 +522,12 @@ ds1pchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
static int
ds1pchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct sc_pchinfo *ch = data;
int drate;
/* irq rate is fixed at 187.5hz */
drate = ch->spd * sndbuf_getbps(ch->buffer);
blocksize = (drate << 8) / DS1_IRQHZ;
return blocksize;
}
@ -842,6 +849,7 @@ ds_init(struct sc_info *sc)
ds_wr(sc, YDSXGR_NATIVEDACOUTVOL, 0x3fff3fff, 4);
ds_wr(sc, YDSXGR_NATIVEADCINVOL, 0x3fff3fff, 4);
ds_wr(sc, YDSXGR_NATIVEDACINVOL, 0x3fff3fff, 4);
return 0;
}