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ALSA: hda: hdmi: Hint matching between input devices and pcm devices

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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>
This commit is contained in:
David Henningsson 2011-08-23 16:56:03 +02:00 committed by Takashi Iwai
parent 42cf0d0155
commit 0b6c49b59f
1 changed files with 24 additions and 7 deletions
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31
sound/pci/hda/patch_hdmi.c
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@ -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]);