Comment 192 for bug 1332900

if the specification does not mention that it support surround 5.1

do you have any headset (iphone or nokia) to test the headset jack ?

static void alc_determine_headset_type(struct hda_codec *codec)
+{
+ int val;
+ bool is_ctia = false;
+ struct alc_spec *spec = codec->spec;
+
+ switch (codec->vendor_id) {
+
+ case 0x10ec0668:
+ alc_write_coef_idx(codec, 0x11, 0x0001);
+ alc_write_coef_idx(codec, 0xb7, 0x802b);
+ alc_write_coef_idx(codec, 0x15, 0x0d60);
+ alc_write_coef_idx(codec, 0xc3, 0x0c00);
+ msleep(300);
+ val = alc_read_coef_idx(codec, 0xbe);
+ is_ctia = (val & 0x1c02) == 0x1c02;
+ break;
+ }
+
+ snd_printdd("Headset jack detected iPhone-style headset: %s\n",
+ is_ctia ? "yes" : "no");
+ spec->current_headset_type = is_ctia ? ALC_HEADSET_TYPE_CTIA : ALC_HEADSET_TYPE_OMTP;
+}