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ALSA: isight: add AudioEnable register write
which is needed to get the iSight to talk. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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parent
f2934cd499
commit
8839eedafd
@ -345,7 +345,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
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static int isight_start_streaming(struct isight *isight)
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{
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__be32 sample_rate;
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__be32 value;
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unsigned int i;
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int err;
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@ -356,10 +356,10 @@ static int isight_start_streaming(struct isight *isight)
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return 0;
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}
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sample_rate = cpu_to_be32(RATE_48000);
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value = cpu_to_be32(RATE_48000);
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err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
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isight->audio_base + REG_SAMPLE_RATE,
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&sample_rate, 4);
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&value, 4);
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if (err < 0)
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return err;
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@ -367,6 +367,13 @@ static int isight_start_streaming(struct isight *isight)
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if (err < 0)
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goto error;
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value = cpu_to_be32(AUDIO_ENABLE);
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err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
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isight->audio_base + REG_AUDIO_ENABLE,
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&value, 4);
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if (err < 0)
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goto err_resources;
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isight->context = fw_iso_context_create(isight->device->card,
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FW_ISO_CONTEXT_RECEIVE,
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isight->resources.channel,
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@ -400,6 +407,10 @@ err_context:
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fw_iso_context_destroy(isight->context);
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isight->context = NULL;
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err_resources:
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value = 0;
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snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
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isight->audio_base + REG_AUDIO_ENABLE,
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&value, 4);
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fw_iso_resources_free(&isight->resources);
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error:
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return err;
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