+/* convert from MIX nid to DAC */
+static inline hda_nid_t alc662_mix_to_dac(hda_nid_t nid)
+{
+ if (nid == 0x0f)
+ return 0x02;
+ else if (nid >= 0x0c && nid <= 0x0e)
+ return nid - 0x0c + 0x02;
+ else
+ return 0;
+}
+
+/* get MIX nid connected to the given pin targeted to DAC */
+static hda_nid_t alc662_dac_to_mix(struct hda_codec *codec, hda_nid_t pin,
+ hda_nid_t dac)
+{
+ hda_nid_t mix[4];
+ int i, num;
+
+ num = snd_hda_get_connections(codec, pin, mix, ARRAY_SIZE(mix));
+ for (i = 0; i < num; i++) {
+ if (alc662_mix_to_dac(mix[i]) == dac)
+ return mix[i];
+ }
+ return 0;
+}
+
+/* look for an empty DAC slot */
+static hda_nid_t alc662_look_for_dac(struct hda_codec *codec, hda_nid_t pin)
+{
+ struct alc_spec *spec = codec->spec;
+ hda_nid_t srcs[5];
+ int i, j, num;
+
+ num = snd_hda_get_connections(codec, pin, srcs, ARRAY_SIZE(srcs));
+ if (num < 0)
+ return 0;
+ for (i = 0; i < num; i++) {
+ hda_nid_t nid = alc662_mix_to_dac(srcs[i]);
+ if (!nid)
+ continue;
+ for (j = 0; j < spec->multiout.num_dacs; j++)
+ if (spec->multiout.dac_nids[j] == nid)
+ break;
+ if (j >= spec->multiout.num_dacs)
+ return nid;
+ }
+ return 0;
+}
+
+/* fill in the dac_nids table from the parsed pin configuration */
+static int alc662_auto_fill_dac_nids(struct hda_codec *codec,
+ const struct auto_pin_cfg *cfg)
+{
+ struct alc_spec *spec = codec->spec;
+ int i;
+ hda_nid_t dac;
+
+ spec->multiout.dac_nids = spec->private_dac_nids;
+ for (i = 0; i < cfg->line_outs; i++) {
+ dac = alc662_look_for_dac(codec, cfg->line_out_pins[i]);
+ if (!dac)
+ continue;
+ spec->multiout.dac_nids[spec->multiout.num_dacs++] = dac;
+ }
+ return 0;
+}
+
+static int alc662_add_vol_ctl(struct alc_spec *spec, const char *pfx,
+ hda_nid_t nid, unsigned int chs)
+{
+ char name[32];
+ sprintf(name, "%s Playback Volume", pfx);
+ return add_control(spec, ALC_CTL_WIDGET_VOL, name,
+ HDA_COMPOSE_AMP_VAL(nid, chs, 0, HDA_OUTPUT));
+}
+
+static int alc662_add_sw_ctl(struct alc_spec *spec, const char *pfx,
+ hda_nid_t nid, unsigned int chs)
+{
+ char name[32];
+ sprintf(name, "%s Playback Switch", pfx);
+ return add_control(spec, ALC_CTL_WIDGET_MUTE, name,
+ HDA_COMPOSE_AMP_VAL(nid, chs, 0, HDA_INPUT));
+}
+
+#define alc662_add_stereo_vol(spec, pfx, nid) \
+ alc662_add_vol_ctl(spec, pfx, nid, 3)
+#define alc662_add_stereo_sw(spec, pfx, nid) \
+ alc662_add_sw_ctl(spec, pfx, nid, 3)
+