diff options
| author | Wu Fengguang <wfg@linux.intel.com> | 2008-11-19 08:56:18 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-11-19 07:35:44 +0100 |
| commit | 9c8641e8ee438273079337c86f4d739fbfdd8b33 (patch) | |
| tree | dbceafd733b7469c776da4d5a2d01b2e3aaf926d /sound | |
| parent | 698544de8a31a7cadc26c27cbaa69ae82dd4f86c (diff) | |
ALSA: hda: HDMI channel mapping cleanups
Refactor the channel mapping code for consistent naming
and make it more informed about channel allocations.
Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/patch_intelhdmi.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c index 6b5c3e2cf93..747aa84d0ec 100644 --- a/sound/pci/hda/patch_intelhdmi.c +++ b/sound/pci/hda/patch_intelhdmi.c @@ -290,7 +290,7 @@ static void hdmi_set_channel_count(struct hda_codec *codec, int chs) chs, hdmi_get_channel_count(codec)); } -static void hdmi_debug_slot_mapping(struct hda_codec *codec) +static void hdmi_debug_channel_mapping(struct hda_codec *codec) { #ifdef CONFIG_SND_DEBUG_VERBOSE int i; @@ -305,13 +305,6 @@ static void hdmi_debug_slot_mapping(struct hda_codec *codec) #endif } -static void hdmi_setup_channel_mapping(struct hda_codec *codec) -{ - snd_hda_sequence_write(codec, def_chan_map); - hdmi_debug_slot_mapping(codec); -} - - static void hdmi_parse_eld(struct hda_codec *codec) { struct intel_hdmi_spec *spec = codec->spec; @@ -461,6 +454,22 @@ static int hdmi_setup_channel_allocation(struct hda_codec *codec, return -1; } +static void hdmi_setup_channel_mapping(struct hda_codec *codec, + struct hdmi_audio_infoframe *ai) +{ + if (!ai->CA) + return; + + /* + * TODO: adjust channel mapping if necessary + * ALSA sequence is front/surr/clfe/side? + */ + + snd_hda_sequence_write(codec, def_chan_map); + hdmi_debug_channel_mapping(codec); +} + + static void hdmi_setup_audio_infoframe(struct hda_codec *codec, struct snd_pcm_substream *substream) { @@ -472,6 +481,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, }; hdmi_setup_channel_allocation(codec, &ai); + hdmi_setup_channel_mapping(codec, &ai); hdmi_fill_audio_infoframe(codec, &ai); } @@ -569,9 +579,6 @@ static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo, hdmi_set_channel_count(codec, substream->runtime->channels); - /* wfg: channel mapping not supported by DEVCTG */ - hdmi_setup_channel_mapping(codec); - hdmi_setup_audio_infoframe(codec, substream); hdmi_enable_output(codec); |