diff options
Diffstat (limited to 'drivers/sound/ac97_codec.c')
| -rw-r--r-- | drivers/sound/ac97_codec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/sound/ac97_codec.c b/drivers/sound/ac97_codec.c index 13e588c98..b26c3a8d5 100644 --- a/drivers/sound/ac97_codec.c +++ b/drivers/sound/ac97_codec.c @@ -71,6 +71,7 @@ static struct { {0x83847605, "SigmaTel STAC9704" , NULL}, {0x83847608, "SigmaTel STAC9708" , NULL}, {0x83847609, "SigmaTel STAC9721/23" , sigmatel_init}, + {0x54524106, "TriTech TR28026" , NULL}, {0x54524108, "TriTech TR28028" , NULL}, {0x574D4C00, "Wolfson WM9704" , NULL}, {0x00000000, NULL, NULL} @@ -330,6 +331,10 @@ static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) /* else, write the first set in the mask as the output */ + /* clear out current set value first (AC97 supports only 1 input!) */ + val = (1 << ac97_rm2oss[codec->codec_read(codec, AC97_RECORD_SELECT)&0x07]); + if (mask != val) mask &= ~val; + val = ffs(mask); val = ac97_oss_rm[val-1]; val |= val << 8; /* set both channels */ @@ -418,6 +423,7 @@ static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned switch (_IOC_NR(cmd)) { case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ if (!codec->recmask_io) return -EINVAL; + if(!val) return 0; if (!(val &= codec->record_sources)) return -EINVAL; codec->recmask_io(codec, 0, val); |