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Commit 7b543602 authored by Oldřich Jedlička's avatar Oldřich Jedlička Committed by Mauro Carvalho Chehab
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V4L/DVB (12490): Report only 32kHz for ALSA 



There are several reasons:

 - SAA7133/35 uses DDEP (DemDec Easy Programming mode), which works in 32kHz
   only
 - SAA7134 for TV mode uses DemDec mode (32kHz)
 - Radio works in 32kHz only
 - When recording 48kHz from Line1/Line2, switching of capture source to TV
   means switching to 32kHz without any frequency translation

Signed-off-by: default avatarOldřich Jedlička <oldium.pro@seznam.cz>
Acked-by: default avatarhermann pitton <hermann-pitton@arcor.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 89dec01b

drivers/media/video/saa7134/saa7134-alsa.c

+12 −2
Original line number Diff line number Diff line
@@ -435,6 +435,16 @@ snd_card_saa7134_capture_pointer(struct snd_pcm_substream * substream) 


/*

 * ALSA hardware capabilities definition

 *

 *  Report only 32kHz for ALSA:

 *

 *  - SAA7133/35 uses DDEP (DemDec Easy Programming mode), which works in 32kHz

 *    only

 *  - SAA7134 for TV mode uses DemDec mode (32kHz)

 *  - Radio works in 32kHz only

 *  - When recording 48kHz from Line1/Line2, switching of capture source to TV

 *    means

 *    switching to 32kHz without any frequency translation

 */



static struct snd_pcm_hardware snd_card_saa7134_capture =
@@ -448,9 +458,9 @@ static struct snd_pcm_hardware snd_card_saa7134_capture = 
				SNDRV_PCM_FMTBIT_U8 | \

				SNDRV_PCM_FMTBIT_U16_LE | \

				SNDRV_PCM_FMTBIT_U16_BE,

	.rates =		SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000,

	.rates =		SNDRV_PCM_RATE_32000,

	.rate_min =		32000,

	.rate_max =		48000,

	.rate_max =		32000,

	.channels_min =		1,

	.channels_max =		2,

	.buffer_bytes_max =	(256*1024),