Commit 4d20bb1d authored by Raymond Yau's avatar Raymond Yau Committed by Takashi Iwai
Browse files

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: default avatarRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b4ead019

sound/pci/ymfpci/ymfpci.c

+13 −8
Original line number Diff line number Diff line
@@ -286,18 +286,23 @@ static int __devinit snd_card_ymfpci_probe(struct pci_dev *pci, 
		snd_card_free(card);

		return err;

	}

	if ((err = snd_ymfpci_pcm_4ch(chip, 2, NULL)) < 0) {

	err = snd_ymfpci_mixer(chip, rear_switch[dev]);

	if (err < 0) {

		snd_card_free(card);

		return err;

	}

	if ((err = snd_ymfpci_pcm2(chip, 3, NULL)) < 0) {

	if (chip->ac97->ext_id & AC97_EI_SDAC) {

		err = snd_ymfpci_pcm_4ch(chip, 2, NULL);

		if (err < 0) {

			snd_card_free(card);

			return err;

		}

	if ((err = snd_ymfpci_mixer(chip, rear_switch[dev])) < 0) {

		err = snd_ymfpci_pcm2(chip, 3, NULL);

		if (err < 0) {

			snd_card_free(card);

			return err;

		}

	}

	if ((err = snd_ymfpci_timer(chip, 0)) < 0) {

		snd_card_free(card);

		return err;

sound/pci/ymfpci/ymfpci_main.c

+14 −7
Original line number Diff line number Diff line
@@ -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))

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