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ALSA: ice1724 - Create capture pcm only for ADC-enabled configurations 

Add the capture pcm only if there is at least one ADC configured in
the SYSCONF register.

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Pavel Hofman 2012-01-10 20:45:28 +01:00 committed by Takashi Iwai
parent f7de8ba3fc
commit ffd364ddd3
2 changed files with 11 additions and 3 deletions
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1
sound/pci/ice1712/envy24ht.h
View File

@ -66,6 +66,7 @@ enum {
#define VT1724_CFG_CLOCK384 0x40 /* 16.9344Mhz, 44.1kHz*384 */
#define VT1724_CFG_MPU401 0x20 /* MPU401 UARTs */
#define VT1724_CFG_ADC_MASK 0x0c /* one, two or one and S/PDIF, stereo ADCs */
#define VT1724_CFG_ADC_NONE 0x0c /* no ADCs */
#define VT1724_CFG_DAC_MASK 0x03 /* one, two, three, four stereo DACs */
#define VT1724_REG_AC97_CFG 0x05 /* byte */

13
sound/pci/ice1712/ice1724.c
View File

@ -1117,14 +1117,21 @@ static struct snd_pcm_ops snd_vt1724_capture_pro_ops = {
static int __devinit snd_vt1724_pcm_profi(struct snd_ice1712 *ice, int device)
{
struct snd_pcm *pcm;
int err;
int capt, err;
err = snd_pcm_new(ice->card, "ICE1724", device, 1, 1, &pcm);
if ((ice->eeprom.data[ICE_EEP2_SYSCONF] & VT1724_CFG_ADC_MASK) ==
VT1724_CFG_ADC_NONE)
capt = 0;
else
capt = 1;
err = snd_pcm_new(ice->card, "ICE1724", device, 1, capt, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_vt1724_playback_pro_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_vt1724_capture_pro_ops);
if (capt)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_vt1724_capture_pro_ops);
pcm->private_data = ice;
pcm->info_flags = 0;