ALSA: HDA VIA: Fix 2nd S/PDIF out function

As it seems, the recently-sent patch for the 2nd S/PDIF (HDMI) output
is not working with alsa-kernel 1.0.18rc3.

This patch makes it work by
* activating the second S/PDIF output pin in the pin config
* consolidating the dig_playback_pcm_prepare() with extra_dig_pcm_prepare()
  functions
* remove the need for an extra hda_pcm_stream structure and rather represents
  the second digital output as substream within the primary S/PDIF digital out
  stream.

Signed-off-by: Logan Li <LoganLi@viatech.com.cn>
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 43fb965..59a173e 100644 (file)
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -123,7 +123,6 @@ struct via_spec {
        char *stream_name_digital;
        struct hda_pcm_stream *stream_digital_playback;
        struct hda_pcm_stream *stream_digital_capture;
-       struct hda_pcm_stream *stream_extra_digital_playback;
 
        /* playback */
        struct hda_multi_out multiout;
@@ -656,17 +655,6 @@ static int via_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
        return snd_hda_multi_out_dig_close(codec, &spec->multiout);
 }
 
-static int via_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
-                                       struct hda_codec *codec,
-                                       unsigned int stream_tag,
-                                       unsigned int format,
-                                       struct snd_pcm_substream *substream)
-{
-       struct via_spec *spec = codec->spec;
-       return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
-                                            stream_tag, format, substream);
-}
-
 /* setup SPDIF output stream */
 static void setup_dig_playback_stream(struct hda_codec *codec, hda_nid_t nid,
                                 unsigned int stream_tag, unsigned int format)
@@ -682,17 +670,25 @@ static void setup_dig_playback_stream(struct hda_codec *codec, hda_nid_t nid,
                                    codec->spdif_ctls & 0xff);
 }
 
-static int via_extra_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+static int via_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                        struct hda_codec *codec,
                                        unsigned int stream_tag,
                                        unsigned int format,
                                        struct snd_pcm_substream *substream)
 {
        struct via_spec *spec = codec->spec;
+       hda_nid_t nid;
+
+       /* 1st or 2nd S/PDIF */
+       if (substream->number == 0)
+               nid = spec->multiout.dig_out_nid;
+       else if (substream->number == 1)
+               nid = spec->extra_dig_out_nid;
+       else
+               return -1;
 
        mutex_lock(&codec->spdif_mutex);
-       setup_dig_playback_stream(codec, spec->extra_dig_out_nid, stream_tag,
-                                 format);
+       setup_dig_playback_stream(codec, nid, stream_tag, format);
        mutex_unlock(&codec->spdif_mutex);
        return 0;
 }
@@ -854,17 +850,6 @@ static int via_build_pcms(struct hda_codec *codec)
                }
        }
 
-       if (spec->extra_dig_out_nid) {
-               codec->num_pcms++;
-               info++;
-               info->name = spec->stream_name_digital;
-               info->pcm_type = HDA_PCM_TYPE_HDMI;
-               info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
-                               *(spec->stream_extra_digital_playback);
-               info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
-                               spec->extra_dig_out_nid;
-       }
-
        return 0;
 }
 
@@ -957,6 +942,10 @@ static void via_unsol_event(struct hda_codec *codec,
                via_gpio_control(codec);
 }
 
+static hda_nid_t slave_dig_outs[] = {
+       0,
+};
+
 static int via_init(struct hda_codec *codec)
 {
        struct via_spec *spec = codec->spec;
@@ -991,6 +980,9 @@ static int via_init(struct hda_codec *codec)
                snd_hda_codec_write(codec, spec->autocfg.dig_in_pin, 0,
                                    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN);
 
+       /* no slave outs */
+       codec->slave_dig_outs = slave_dig_outs;
+
        return 0;
 }
 
@@ -2477,8 +2469,9 @@ static struct hda_verb vt1708S_volume_init_verbs[] = {
 
        /* Setup default input of PW4 to MW0 */
        {0x1d, AC_VERB_SET_CONNECT_SEL, 0x0},
-       /* PW9 Output enable */
+       /* PW9, PW10  Output enable */
        {0x20, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x40},
+       {0x21, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x40},
        { }
 };
 
@@ -2511,7 +2504,7 @@ static struct hda_pcm_stream vt1708S_pcm_analog_capture = {
 };
 
 static struct hda_pcm_stream vt1708S_pcm_digital_playback = {
-       .substreams = 1,
+       .substreams = 2,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in via_build_pcms */
@@ -2522,16 +2515,6 @@ static struct hda_pcm_stream vt1708S_pcm_digital_playback = {
        },
 };
 
-static struct hda_pcm_stream vt1708S_pcm_extra_digital_playback = {
-       .substreams = 1,
-       .channels_min = 2,
-       .channels_max = 2,
-       /* NID is set in via_build_pcms */
-       .ops = {
-               .prepare = via_extra_dig_playback_pcm_prepare
-       },
-};
-
 /* fill in the dac_nids table from the parsed pin configuration */
 static int vt1708S_auto_fill_dac_nids(struct via_spec *spec,
                                     const struct auto_pin_cfg *cfg)
@@ -2822,8 +2805,6 @@ static int patch_vt1708S(struct hda_codec *codec)
 
        spec->stream_name_digital = "VT1708S Digital";
        spec->stream_digital_playback = &vt1708S_pcm_digital_playback;
-       spec->stream_extra_digital_playback =
-                                       &vt1708S_pcm_extra_digital_playback;
 
        if (!spec->adc_nids && spec->input_mux) {
                spec->adc_nids = vt1708S_adc_nids;
@@ -2927,7 +2908,7 @@ static struct hda_pcm_stream vt1702_pcm_analog_capture = {
 };
 
 static struct hda_pcm_stream vt1702_pcm_digital_playback = {
-       .substreams = 1,
+       .substreams = 2,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in via_build_pcms */
@@ -2938,16 +2919,6 @@ static struct hda_pcm_stream vt1702_pcm_digital_playback = {
        },
 };
 
-static struct hda_pcm_stream vt1702_pcm_extra_digital_playback = {
-       .substreams = 1,
-       .channels_min = 2,
-       .channels_max = 2,
-       /* NID is set in via_build_pcms */
-       .ops = {
-               .prepare = via_extra_dig_playback_pcm_prepare
-       },
-};
-
 /* fill in the dac_nids table from the parsed pin configuration */
 static int vt1702_auto_fill_dac_nids(struct via_spec *spec,
                                     const struct auto_pin_cfg *cfg)
@@ -3155,8 +3126,6 @@ static int patch_vt1702(struct hda_codec *codec)
 
        spec->stream_name_digital = "VT1702 Digital";
        spec->stream_digital_playback = &vt1702_pcm_digital_playback;
-       spec->stream_extra_digital_playback =
-                                       &vt1702_pcm_extra_digital_playback;
 
        if (!spec->adc_nids && spec->input_mux) {
                spec->adc_nids = vt1702_adc_nids;