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| author | Raymond Yau <superquad.vortex2@gmail.com> | 2012-01-17 11:41:47 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-01-24 15:28:05 +0100 |
| commit | 4d20bb1d5fe1afbdbff951c06cd3d3654fa5ceed (patch) | |
| tree | 4700066adcfd73ed0501841e574334cda30d7a74 /sound/pci/ymfpci/ymfpci_main.c | |
| parent | b4ead019afc201f71c39cd0dfcaafed4a97b3dd2 (diff) | |
| download | talos-op-linux-4d20bb1d5fe1afbdbff951c06cd3d3654fa5ceed.tar.gz talos-op-linux-4d20bb1d5fe1afbdbff951c06cd3d3654fa5ceed.zip | |
ALSA: ymfpci - Don't create invalid PCM & mixers when AC97 doesn't support
- check SDAC bit of AC97 primary codec when create "rear" device 3,
"4ch" device 2 and "4ch Duplication" switch as the card need a four channels
AC97 codec to support surround40.
Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/ymfpci/ymfpci_main.c')
| -rw-r--r-- | sound/pci/ymfpci/ymfpci_main.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c index 03ee4e365311..12a9a2b03387 100644 --- a/sound/pci/ymfpci/ymfpci_main.c +++ b/sound/pci/ymfpci/ymfpci_main.c @@ -1614,6 +1614,14 @@ static int snd_ymfpci_put_dup4ch(struct snd_kcontrol *kcontrol, struct snd_ctl_e return change; } +static struct snd_kcontrol_new snd_ymfpci_dup4ch __devinitdata = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "4ch Duplication", + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ymfpci_info_dup4ch, + .get = snd_ymfpci_get_dup4ch, + .put = snd_ymfpci_put_dup4ch, +}; static struct snd_kcontrol_new snd_ymfpci_controls[] __devinitdata = { { @@ -1642,13 +1650,6 @@ YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,VOLUME), 1, YDSXGR_SPDIFLOOPVOL), YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), 0, YDSXGR_SPDIFOUTCTRL, 0), YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, YDSXGR_SPDIFINCTRL, 0), YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("Loop",NONE,NONE), 0, YDSXGR_SPDIFINCTRL, 4), -{ - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "4ch Duplication", - .info = snd_ymfpci_info_dup4ch, - .get = snd_ymfpci_get_dup4ch, - .put = snd_ymfpci_put_dup4ch, -}, }; @@ -1838,6 +1839,12 @@ int __devinit snd_ymfpci_mixer(struct snd_ymfpci *chip, int rear_switch) if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_ymfpci_controls[idx], chip))) < 0) return err; } + if (chip->ac97->ext_id & AC97_EI_SDAC) { + kctl = snd_ctl_new1(&snd_ymfpci_dup4ch, chip); + err = snd_ctl_add(chip->card, kctl); + if (err < 0) + return err; + } /* add S/PDIF control */ if (snd_BUG_ON(!chip->pcm_spdif)) |
