ALSA: hda - hdmi eld control created based on pcm
eld control is created based on pcm now.
When monitor is connected, eld control will be bound to
pin automatically.
Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 541986f..21a2b28 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -86,7 +86,6 @@
struct hdmi_eld sink_eld;
struct mutex lock;
struct delayed_work work;
- struct snd_kcontrol *eld_ctl;
struct hdmi_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/
int pcm_idx; /* which pcm is attached. -1 means no pcm is attached */
int repoll_count;
@@ -136,6 +135,7 @@
struct hdmi_pcm {
struct hda_pcm *pcm;
struct snd_jack *jack;
+ struct snd_kcontrol *eld_ctl;
};
struct hdmi_spec {
@@ -471,17 +471,22 @@
struct hdmi_spec *spec = codec->spec;
struct hdmi_spec_per_pin *per_pin;
struct hdmi_eld *eld;
- int pin_idx;
+ int pcm_idx;
uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
- pin_idx = kcontrol->private_value;
- per_pin = get_pin(spec, pin_idx);
+ pcm_idx = kcontrol->private_value;
+ mutex_lock(&spec->pcm_lock);
+ per_pin = pcm_idx_to_pin(spec, pcm_idx);
+ if (!per_pin) {
+ /* no pin is bound to the pcm */
+ uinfo->count = 0;
+ mutex_unlock(&spec->pcm_lock);
+ return 0;
+ }
eld = &per_pin->sink_eld;
-
- mutex_lock(&per_pin->lock);
uinfo->count = eld->eld_valid ? eld->eld_size : 0;
- mutex_unlock(&per_pin->lock);
+ mutex_unlock(&spec->pcm_lock);
return 0;
}
@@ -493,16 +498,23 @@
struct hdmi_spec *spec = codec->spec;
struct hdmi_spec_per_pin *per_pin;
struct hdmi_eld *eld;
- int pin_idx;
+ int pcm_idx;
- pin_idx = kcontrol->private_value;
- per_pin = get_pin(spec, pin_idx);
+ pcm_idx = kcontrol->private_value;
+ mutex_lock(&spec->pcm_lock);
+ per_pin = pcm_idx_to_pin(spec, pcm_idx);
+ if (!per_pin) {
+ /* no pin is bound to the pcm */
+ memset(ucontrol->value.bytes.data, 0,
+ ARRAY_SIZE(ucontrol->value.bytes.data));
+ mutex_unlock(&spec->pcm_lock);
+ return 0;
+ }
eld = &per_pin->sink_eld;
- mutex_lock(&per_pin->lock);
if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
eld->eld_size > ELD_MAX_SIZE) {
- mutex_unlock(&per_pin->lock);
+ mutex_unlock(&spec->pcm_lock);
snd_BUG();
return -EINVAL;
}
@@ -512,7 +524,7 @@
if (eld->eld_valid)
memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
eld->eld_size);
- mutex_unlock(&per_pin->lock);
+ mutex_unlock(&spec->pcm_lock);
return 0;
}
@@ -525,7 +537,7 @@
.get = hdmi_eld_ctl_get,
};
-static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
+static int hdmi_create_eld_ctl(struct hda_codec *codec, int pcm_idx,
int device)
{
struct snd_kcontrol *kctl;
@@ -535,14 +547,17 @@
kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
if (!kctl)
return -ENOMEM;
- kctl->private_value = pin_idx;
+ kctl->private_value = pcm_idx;
kctl->id.device = device;
- err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
+ /* no pin nid is associated with the kctl now
+ * tbd: associate pin nid to eld ctl later
+ */
+ err = snd_hda_ctl_add(codec, 0, kctl);
if (err < 0)
return err;
- get_pin(spec, pin_idx)->eld_ctl = kctl;
+ get_hdmi_pcm(spec, pcm_idx)->eld_ctl = kctl;
return 0;
}
@@ -1841,7 +1856,10 @@
struct hdmi_spec *spec = codec->spec;
bool old_eld_valid = pin_eld->eld_valid;
bool eld_changed;
+ int pcm_idx = -1;
+ /* for monitor disconnection, save pcm_idx firstly */
+ pcm_idx = per_pin->pcm_idx;
if (spec->dyn_pcm_assign) {
if (eld->eld_valid) {
hdmi_attach_hda_pcm(spec, per_pin);
@@ -1851,6 +1869,11 @@
hdmi_detach_hda_pcm(spec, per_pin);
}
}
+ /* if pcm_idx == -1, it means this is in monitor connection event
+ * we can get the correct pcm_idx now.
+ */
+ if (pcm_idx == -1)
+ pcm_idx = per_pin->pcm_idx;
if (eld->eld_valid)
snd_hdmi_show_eld(codec, &eld->info);
@@ -1884,11 +1907,11 @@
hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
}
- if (eld_changed)
+ if (eld_changed && pcm_idx >= 0)
snd_ctl_notify(codec->card,
SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO,
- &per_pin->eld_ctl->id);
+ &get_hdmi_pcm(spec, pcm_idx)->eld_ctl->id);
}
/* update ELD and jack state via HD-audio verbs */
@@ -2629,18 +2652,17 @@
if (err < 0)
return err;
snd_hda_spdif_ctls_unassign(codec, pcm_idx);
+
+ /* add control for ELD Bytes */
+ err = hdmi_create_eld_ctl(codec, pcm_idx,
+ get_pcm_rec(spec, pcm_idx)->device);
+ if (err < 0)
+ return err;
}
for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
- /* add control for ELD Bytes */
- err = hdmi_create_eld_ctl(codec, pin_idx,
- get_pcm_rec(spec, pin_idx)->device);
-
- if (err < 0)
- return err;
-
hdmi_present_sense(per_pin, 0);
}