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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2011-05-11 10:49:58 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-05-11 14:51:20 +0200 |
| commit | 8839eedafd2e91e5b124730825e9b39b1ff493dd (patch) | |
| tree | 3e7e331a9f4f7103b7432740666c2f4085a8213e /sound/firewire | |
| parent | f2934cd499ba2c7f605787508b4cfcfa3a45b0a4 (diff) | |
| download | linux-8839eedafd2e91e5b124730825e9b39b1ff493dd.tar.gz | |
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>
Diffstat (limited to 'sound/firewire')
| -rw-r--r-- | sound/firewire/isight.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c index 10a9b9b0b2c2..1a8da2614db6 100644 --- a/sound/firewire/isight.c +++ b/sound/firewire/isight.c @@ -345,7 +345,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream) static int isight_start_streaming(struct isight *isight) { - __be32 sample_rate; + __be32 value; unsigned int i; int err; @@ -356,10 +356,10 @@ static int isight_start_streaming(struct isight *isight) return 0; } - sample_rate = cpu_to_be32(RATE_48000); + value = cpu_to_be32(RATE_48000); err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST, isight->audio_base + REG_SAMPLE_RATE, - &sample_rate, 4); + &value, 4); if (err < 0) return err; @@ -367,6 +367,13 @@ static int isight_start_streaming(struct isight *isight) if (err < 0) goto error; + value = cpu_to_be32(AUDIO_ENABLE); + err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST, + isight->audio_base + REG_AUDIO_ENABLE, + &value, 4); + if (err < 0) + goto err_resources; + isight->context = fw_iso_context_create(isight->device->card, FW_ISO_CONTEXT_RECEIVE, isight->resources.channel, @@ -400,6 +407,10 @@ err_context: fw_iso_context_destroy(isight->context); isight->context = NULL; err_resources: + value = 0; + snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST, + isight->audio_base + REG_AUDIO_ENABLE, + &value, 4); fw_iso_resources_free(&isight->resources); error: return err; |