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Disable AC97 microphone channel. Due to the channel allocation priority

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that favours true hardware channel, the first instance of recording
request will grab this channel (the first channel is being used as
vchan master). In many cases, it is not really work as intended and give
false impression of broken recording.

PR:		kern/118546
MFC after:	3 days
This commit is contained in:
Ariff Abdullah 2007-12-12 18:21:05 +00:00
parent f0cfdeddd2
commit 909f7f7f4e
1 changed files with 6 additions and 1 deletions
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7
sys/dev/sound/pci/ich.c
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@ -980,6 +980,10 @@ ich_pci_attach(device_t dev)
device_get_unit(dev), "fixedrate", &i) == 0 && i != 0)
sc->flags |= ICH_FIXED_RATE;
if (resource_int_value(device_get_name(dev),
device_get_unit(dev), "micchannel_enabled", &i) == 0 && i != 0)
sc->hasmic = 1;
sc->irqid = 0;
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid,
RF_ACTIVE | RF_SHAREABLE);
@ -1026,7 +1030,8 @@ ich_pci_attach(device_t dev)
extcaps = ac97_getextcaps(sc->codec);
sc->hasvra = extcaps & AC97_EXTCAP_VRA;
sc->hasvrm = extcaps & AC97_EXTCAP_VRM;
sc->hasmic = ac97_getcaps(sc->codec) & AC97_CAP_MICCHANNEL;
sc->hasmic = (sc->hasmic != 0 &&
(ac97_getcaps(sc->codec) & AC97_CAP_MICCHANNEL)) ? 1 : 0;
ac97_setextmode(sc->codec, sc->hasvra | sc->hasvrm);
sc->dtbl_size = sizeof(struct ich_desc) * ICH_DTBL_LENGTH *