ALSA: hda - Add the support for VIA HDMI pin detection
This patch adds the hotplug unsol event handling to simple_hdmi*().
It works on VIA VX900. If AMD or Nvidia chips support the
pin-detection similarly, it can be added easily, too.
Reported-by: Annie Liu <annieliu@viatech.com.cn>
Tested-by: Annie Liu <annieliu@viatech.com.cn>
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 6966818..8e7333b 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1377,6 +1377,19 @@
return 0;
}
+/* unsolicited event for jack sensing */
+static void simple_hdmi_unsol_event(struct hda_codec *codec,
+ unsigned int res)
+{
+ snd_hda_jack_get_action(codec, res >> AC_UNSOL_RES_TAG_SHIFT);
+ snd_hda_jack_report_sync(codec);
+}
+
+/* generic_hdmi_build_jack can be used for simple_hdmi, too,
+ * as long as spec->pins[] is set correctly
+ */
+#define simple_hdmi_build_jack generic_hdmi_build_jack
+
static int simple_playback_build_controls(struct hda_codec *codec)
{
struct hdmi_spec *spec = codec->spec;
@@ -1389,6 +1402,11 @@
spec->cvts[i].cvt_nid);
if (err < 0)
return err;
+ if (codec->patch_ops.unsol_event) {
+ err = simple_hdmi_build_jack(codec, i);
+ if (err < 0)
+ return err;
+ }
}
return 0;
@@ -1876,6 +1894,7 @@
static int via_hdmi_init(struct hda_codec *codec)
{
snd_hda_sequence_write(codec, viahdmi_basic_init);
+ snd_hda_jack_report_sync(codec);
return 0;
}
@@ -1884,6 +1903,7 @@
.build_pcms = simple_playback_build_pcms,
.init = via_hdmi_init,
.free = simple_playback_free,
+ .unsol_event = simple_hdmi_unsol_event,
};
static struct hda_pcm_stream via_hdmi_digital_playback = {