diff options
| author | Subhransu S. Prusty <subhransu.s.prusty@intel.com> | 2016-04-14 07:37:28 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-04-28 20:49:24 +0300 |
| commit | b7756edeb7d03b675e10b4862dccc8deb4b0ca17 (patch) | |
| tree | b12095047163bdf3bf854b1238f953393ef2e70d /sound/soc/codecs/hdac_hdmi.c | |
| parent | 6a5ea5c5d1d35e9b81fca88535cd584d9332961d (diff) | |
| download | linux-b7756edeb7d03b675e10b4862dccc8deb4b0ca17.tar.xz | |
ASoC: hdac_hdmi: parse eld for channel map capability
This patch parses ELD speaker allocation data block to find
sink's chmap capability.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/hdac_hdmi.c')
| -rw-r--r-- | sound/soc/codecs/hdac_hdmi.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 26f9459cb3bc..64ffe93b0f7b 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -60,11 +60,17 @@ struct hdac_hdmi_cvt { struct hdac_hdmi_cvt_params params; }; +/* Currently only spk_alloc, more to be added */ +struct hdac_hdmi_parsed_eld { + u8 spk_alloc; +}; + struct hdac_hdmi_eld { bool monitor_present; bool eld_valid; int eld_size; char eld_buffer[ELD_MAX_SIZE]; + struct hdac_hdmi_parsed_eld info; }; struct hdac_hdmi_pin { @@ -1008,6 +1014,12 @@ static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid) return hdac_hdmi_query_cvt_params(&edev->hdac, cvt); } +static void hdac_hdmi_parse_eld(struct hdac_ext_device *edev, + struct hdac_hdmi_pin *pin) +{ + pin->eld.info.spk_alloc = pin->eld.eld_buffer[DRM_ELD_SPEAKER]; +} + static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, int repoll) { struct hdac_ext_device *edev = pin->edev; @@ -1065,6 +1077,7 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, int repoll) snd_jack_report(pcm->jack, SND_JACK_AVOUT); } + hdac_hdmi_parse_eld(edev, pin); print_hex_dump_bytes("ELD: ", DUMP_PREFIX_OFFSET, pin->eld.eld_buffer, pin->eld.eld_size); |