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authorAnssi Hannula <anssi.hannula@iki.fi>2010-08-03 13:28:58 +0300
committerTakashi Iwai <tiwai@suse.de>2010-08-03 12:53:36 +0200
commitea87d1c493aba9cf3f645eae0d6d9c0fd44d3189 (patch)
treeaade327fe17501e0bd52bf4ae1dc02f84ccbe26f /sound
parent32c168c892e2c6936c714d1653ba5e19e07d5c26 (diff)
ALSA: hda - Add support for HDMI HBR passthrough
Passing IEC 61937 encapsulated compressed audio at bitrates over 6.144 Mbps (i.e. more than a single 2-channel 16-bit 192kHz IEC 60958 link) over HDMI requires the use of HBR Audio Stream Packets instead of Audio Sample Packets. Enable HBR mode when the stream has 8 channels and the Non-PCM bit is set. If the audio converter is not connected to any HBR-capable pins, return -EINVAL in prepare(). Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_codec.h3
-rw-r--r--sound/pci/hda/patch_hdmi.c40
-rw-r--r--sound/pci/hda/patch_intelhdmi.c3
-rw-r--r--sound/pci/hda/patch_nvhdmi.c3
4 files changed, 44 insertions, 5 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 4797416aa3d9..48b33671e727 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -364,6 +364,9 @@ enum {
#define AC_DIG2_CC (0x7f<<0)
/* Pin widget control - 8bit */
+#define AC_PINCTL_EPT (0x3<<0)
+#define AC_PINCTL_EPT_NATIVE 0
+#define AC_PINCTL_EPT_HBR 3
#define AC_PINCTL_VREFEN (0x7<<0)
#define AC_PINCTL_VREF_HIZ 0 /* Hi-Z */
#define AC_PINCTL_VREF_50 1 /* 50% */
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 2fc53961054e..8534792591fc 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -698,11 +698,48 @@ static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
* Callbacks
*/
-static void hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
+static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
u32 stream_tag, int format)
{
+ struct hdmi_spec *spec = codec->spec;
int tag;
int fmt;
+ int pinctl;
+ int new_pinctl = 0;
+ int i;
+
+ for (i = 0; i < spec->num_pins; i++) {
+ if (spec->pin_cvt[i] != nid)
+ continue;
+ if (!(snd_hda_query_pin_caps(codec, spec->pin[i]) & AC_PINCAP_HBR))
+ continue;
+
+ pinctl = snd_hda_codec_read(codec, spec->pin[i], 0,
+ AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+
+ new_pinctl = pinctl & ~AC_PINCTL_EPT;
+ /* Non-PCM, 8 channels */
+ if ((format & 0x8000) && (format & 0x0f) == 7)
+ new_pinctl |= AC_PINCTL_EPT_HBR;
+ else
+ new_pinctl |= AC_PINCTL_EPT_NATIVE;
+
+ snd_printdd("hdmi_setup_stream: "
+ "NID=0x%x, %spinctl=0x%x\n",
+ spec->pin[i],
+ pinctl == new_pinctl ? "" : "new-",
+ new_pinctl);
+
+ if (pinctl != new_pinctl)
+ snd_hda_codec_write(codec, spec->pin[i], 0,
+ AC_VERB_SET_PIN_WIDGET_CONTROL,
+ new_pinctl);
+ }
+
+ if ((format & 0x8000) && (format & 0x0f) == 7 && !new_pinctl) {
+ snd_printdd("hdmi_setup_stream: HBR is not supported\n");
+ return -EINVAL;
+ }
tag = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0) >> 4;
fmt = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_STREAM_FORMAT, 0);
@@ -722,6 +759,7 @@ static void hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
if (fmt != format)
snd_hda_codec_write(codec, nid, 0,
AC_VERB_SET_STREAM_FORMAT, format);
+ return 0;
}
/*
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
index b81d23e42ace..5972d5e7d01f 100644
--- a/sound/pci/hda/patch_intelhdmi.c
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -66,8 +66,7 @@ static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
hdmi_setup_audio_infoframe(codec, hinfo->nid, substream);
- hdmi_setup_stream(codec, hinfo->nid, stream_tag, format);
- return 0;
+ return hdmi_setup_stream(codec, hinfo->nid, stream_tag, format);
}
static int intel_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
diff --git a/sound/pci/hda/patch_nvhdmi.c b/sound/pci/hda/patch_nvhdmi.c
index b0652acee9b2..a281836fd472 100644
--- a/sound/pci/hda/patch_nvhdmi.c
+++ b/sound/pci/hda/patch_nvhdmi.c
@@ -202,8 +202,7 @@ static int nvhdmi_dig_playback_pcm_prepare_8ch_89(struct hda_pcm_stream *hinfo,
hdmi_setup_audio_infoframe(codec, hinfo->nid, substream);
- hdmi_setup_stream(codec, hinfo->nid, stream_tag, format);
- return 0;
+ return hdmi_setup_stream(codec, hinfo->nid, stream_tag, format);
}
static int nvhdmi_dig_playback_pcm_prepare_8ch(struct hda_pcm_stream *hinfo,