diff options
Diffstat (limited to 'sound/pci/hda/patch_hdmi.c')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 1e381918eb82..e77735d804a3 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -91,6 +91,7 @@ struct hdmi_spec { struct hda_pcm pcm_rec[MAX_HDMI_PINS]; unsigned int channels_max; /* max over all cvts */ + struct hdmi_eld temp_eld; /* * Non-generic ATI/NVIDIA specific */ @@ -352,7 +353,9 @@ static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, pin_idx = kcontrol->private_value; eld = &spec->pins[pin_idx].sink_eld; + mutex_lock(&eld->lock); uinfo->count = eld->eld_valid ? eld->eld_size : 0; + mutex_unlock(&eld->lock); return 0; } @@ -368,7 +371,9 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, pin_idx = kcontrol->private_value; eld = &spec->pins[pin_idx].sink_eld; + mutex_lock(&eld->lock); if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) { + mutex_unlock(&eld->lock); snd_BUG(); return -EINVAL; } @@ -378,6 +383,7 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, if (eld->eld_valid) memcpy(ucontrol->value.bytes.data, eld->eld_buffer, eld->eld_size); + mutex_unlock(&eld->lock); return 0; } @@ -1164,7 +1170,9 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx) static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) { struct hda_codec *codec = per_pin->codec; - struct hdmi_eld *eld = &per_pin->sink_eld; + struct hdmi_spec *spec = codec->spec; + struct hdmi_eld *eld = &spec->temp_eld; + struct hdmi_eld *pin_eld = &per_pin->sink_eld; hda_nid_t pin_nid = per_pin->pin_nid; /* * Always execute a GetPinSense verb here, even when called from @@ -1175,38 +1183,56 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) * the unsolicited response to avoid custom WARs. */ int present = snd_hda_pin_sense(codec, pin_nid); - bool eld_valid = false; + bool update_eld = false; + bool eld_changed = false; - eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE); - if (eld->monitor_present) - eld_valid = !!(present & AC_PINSENSE_ELDV); + pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE); + if (pin_eld->monitor_present) + eld->eld_valid = !!(present & AC_PINSENSE_ELDV); + else + eld->eld_valid = false; _snd_printd(SND_PR_VERBOSE, "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n", - codec->addr, pin_nid, eld->monitor_present, eld_valid); + codec->addr, pin_nid, eld->monitor_present, eld->eld_valid); - eld->eld_valid = false; - if (eld_valid) { + if (eld->eld_valid) { if (snd_hdmi_get_eld(codec, pin_nid, eld->eld_buffer, &eld->eld_size) < 0) - eld_valid = false; + eld->eld_valid = false; else { memset(&eld->info, 0, sizeof(struct parsed_hdmi_eld)); if (snd_hdmi_parse_eld(&eld->info, eld->eld_buffer, eld->eld_size) < 0) - eld_valid = false; + eld->eld_valid = false; } - if (eld_valid) { + if (eld->eld_valid) { snd_hdmi_show_eld(&eld->info); - eld->eld_valid = true; + update_eld = true; } else if (repoll) { queue_delayed_work(codec->bus->workq, &per_pin->work, msecs_to_jiffies(300)); + return; } } + + mutex_lock(&pin_eld->lock); + if (pin_eld->eld_valid && !eld->eld_valid) + update_eld = true; + if (update_eld) { + pin_eld->eld_valid = eld->eld_valid; + eld_changed = memcmp(pin_eld->eld_buffer, eld->eld_buffer, + eld->eld_size) != 0; + if (eld_changed) + memcpy(pin_eld->eld_buffer, eld->eld_buffer, + eld->eld_size); + pin_eld->eld_size = eld->eld_size; + pin_eld->info = eld->info; + } + mutex_unlock(&pin_eld->lock); } static void hdmi_repoll_eld(struct work_struct *work) @@ -1674,6 +1700,7 @@ static int generic_hdmi_init_per_pins(struct hda_codec *codec) struct hdmi_eld *eld = &per_pin->sink_eld; per_pin->codec = codec; + mutex_init(&eld->lock); INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld); snd_hda_eld_proc_new(codec, eld, pin_idx); } |