From cb0b3ff041960834ea33421ebad87cce99a3f525 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 23 Aug 2011 16:56:03 +0200
Subject: [PATCH] ALSA: hda: hdmi: Hint matching between input devices and pcm
devices
Since modern HDMI cards often have more than one output pin and thus
input device, we need to know which one has actually been plugged in.
This patch adds a name hint that indicates which PCM device is connected
to which pin.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/hda/patch_hdmi.c | 31 ++++++++++++++++++++++++-------
1 file changed, 24 insertions(+), 7 deletions(-)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 19cb72db9c38d..3f1f6ac8e6432 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -967,19 +967,12 @@ static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
per_pin->pin_nid = pin_nid;
- err = snd_hda_input_jack_add(codec, pin_nid,
- SND_JACK_VIDEOOUT, NULL);
- if (err < 0)
- return err;
-
err = hdmi_read_pin_conn(codec, pin_idx);
if (err < 0)
return err;
spec->num_pins++;
- hdmi_present_sense(codec, pin_nid, eld);
-
return 0;
}
@@ -1162,6 +1155,25 @@ static int generic_hdmi_build_pcms(struct hda_codec *codec)
return 0;
}
+static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
+{
+ int err;
+ char hdmi_str[32];
+ struct hdmi_spec *spec = codec->spec;
+ struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+ int pcmdev = spec->pcm_rec[pin_idx].device;
+
+ snprintf(hdmi_str, sizeof(hdmi_str), "HDMI/DP,pcm=%d", pcmdev);
+
+ err = snd_hda_input_jack_add(codec, per_pin->pin_nid,
+ SND_JACK_VIDEOOUT, pcmdev > 0 ? hdmi_str : NULL);
+ if (err < 0)
+ return err;
+
+ hdmi_present_sense(codec, per_pin->pin_nid, &per_pin->sink_eld);
+ return 0;
+}
+
static int generic_hdmi_build_controls(struct hda_codec *codec)
{
struct hdmi_spec *spec = codec->spec;
@@ -1170,6 +1182,11 @@ static int generic_hdmi_build_controls(struct hda_codec *codec)
for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+
+ err = generic_hdmi_build_jack(codec, pin_idx);
+ if (err < 0)
+ return err;
+
err = snd_hda_create_spdif_out_ctls(codec,
per_pin->pin_nid,
per_pin->mux_nids[0]);
--
2.39.5