ALSA: hda - Simplify PCM setup overrides

This patch does two things:
- code refactoring with a local helper function,
- allow codec drivers to provide the specific PCM stream info pointers
  only for overriding the non-NULL entries, instead of copying the
  whole.

This simplifies the codec driver side (currently the only user is
alc269's 44kHz fixed rate).

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index ebdbc02..27ce547 100644 (file)
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -5137,6 +5137,33 @@ static void fill_pcm_stream_name(char *str, size_t len, const char *sfx,
        strlcat(str, sfx, len);
 }
 
+/* copy PCM stream info from @default_str, and override non-NULL entries
+ * from @spec_str and @nid
+ */
+static void setup_pcm_stream(struct hda_pcm_stream *str,
+                            const struct hda_pcm_stream *default_str,
+                            const struct hda_pcm_stream *spec_str,
+                            hda_nid_t nid)
+{
+       *str = *default_str;
+       if (nid)
+               str->nid = nid;
+       if (spec_str) {
+               if (spec_str->substreams)
+                       str->substreams = spec_str->substreams;
+               if (spec_str->channels_min)
+                       str->channels_min = spec_str->channels_min;
+               if (spec_str->channels_max)
+                       str->channels_max = spec_str->channels_max;
+               if (spec_str->rates)
+                       str->rates = spec_str->rates;
+               if (spec_str->formats)
+                       str->formats = spec_str->formats;
+               if (spec_str->maxbps)
+                       str->maxbps = spec_str->maxbps;
+       }
+}
+
 /**
  * snd_hda_gen_build_pcms - build PCM streams based on the parsed results
  * @codec: the HDA codec
@@ -5147,7 +5174,6 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec)
 {
        struct hda_gen_spec *spec = codec->spec;
        struct hda_pcm *info;
-       const struct hda_pcm_stream *p;
        bool have_multi_adcs;
 
        if (spec->no_analog)
@@ -5162,11 +5188,10 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec)
        spec->pcm_rec[0] = info;
 
        if (spec->multiout.num_dacs > 0) {
-               p = spec->stream_analog_playback;
-               if (!p)
-                       p = &pcm_analog_playback;
-               info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *p;
-               info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dac_nids[0];
+               setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
+                                &pcm_analog_playback,
+                                spec->stream_analog_playback,
+                                spec->multiout.dac_nids[0]);
                info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
                        spec->multiout.max_channels;
                if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT &&
@@ -5175,15 +5200,11 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec)
                                snd_pcm_2_1_chmaps;
        }
        if (spec->num_adc_nids) {
-               p = spec->stream_analog_capture;
-               if (!p) {
-                       if (spec->dyn_adc_switch)
-                               p = &dyn_adc_pcm_analog_capture;
-                       else
-                               p = &pcm_analog_capture;
-               }
-               info->stream[SNDRV_PCM_STREAM_CAPTURE] = *p;
-               info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];
+               setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
+                                (spec->dyn_adc_switch ?
+                                 &dyn_adc_pcm_analog_capture : &pcm_analog_capture),
+                                spec->stream_analog_capture,
+                                spec->adc_nids[0]);
        }
 
  skip_analog:
@@ -5202,20 +5223,16 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec)
                        info->pcm_type = spec->dig_out_type;
                else
                        info->pcm_type = HDA_PCM_TYPE_SPDIF;
-               if (spec->multiout.dig_out_nid) {
-                       p = spec->stream_digital_playback;
-                       if (!p)
-                               p = &pcm_digital_playback;
-                       info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *p;
-                       info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dig_out_nid;
-               }
-               if (spec->dig_in_nid) {
-                       p = spec->stream_digital_capture;
-                       if (!p)
-                               p = &pcm_digital_capture;
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE] = *p;
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->dig_in_nid;
-               }
+               if (spec->multiout.dig_out_nid)
+                       setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
+                                        &pcm_digital_playback,
+                                        spec->stream_digital_playback,
+                                        spec->multiout.dig_out_nid);
+               if (spec->dig_in_nid)
+                       setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
+                                        &pcm_digital_capture,
+                                        spec->stream_digital_capture,
+                                        spec->dig_in_nid);
        }
 
        if (spec->no_analog)
@@ -5236,31 +5253,24 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec)
                if (!info)
                        return -ENOMEM;
                spec->pcm_rec[2] = info;
-               if (spec->alt_dac_nid) {
-                       p = spec->stream_analog_alt_playback;
-                       if (!p)
-                               p = &pcm_analog_alt_playback;
-                       info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *p;
-                       info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
-                               spec->alt_dac_nid;
-               } else {
-                       info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
-                               pcm_null_stream;
-                       info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = 0;
-               }
+               if (spec->alt_dac_nid)
+                       setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
+                                        &pcm_analog_alt_playback,
+                                        spec->stream_analog_alt_playback,
+                                        spec->alt_dac_nid);
+               else
+                       setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
+                                        &pcm_null_stream, NULL, 0);
                if (have_multi_adcs) {
-                       p = spec->stream_analog_alt_capture;
-                       if (!p)
-                               p = &pcm_analog_alt_capture;
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE] = *p;
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE].nid =
-                               spec->adc_nids[1];
+                       setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
+                                        &pcm_analog_alt_capture,
+                                        spec->stream_analog_alt_capture,
+                                        spec->adc_nids[1]);
                        info->stream[SNDRV_PCM_STREAM_CAPTURE].substreams =
                                spec->num_adc_nids - 1;
                } else {
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE] =
-                               pcm_null_stream;
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = 0;
+                       setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
+                                        &pcm_null_stream, NULL, 0);
                }
        }
 

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2a61bda..124eacf 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2602,53 +2602,12 @@ static int patch_alc268(struct hda_codec *codec)
  * ALC269
  */
 
-static int playback_pcm_open(struct hda_pcm_stream *hinfo,
-                            struct hda_codec *codec,
-                            struct snd_pcm_substream *substream)
-{
-       struct hda_gen_spec *spec = codec->spec;
-       return snd_hda_multi_out_analog_open(codec, &spec->multiout, substream,
-                                            hinfo);
-}
-
-static int 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 hda_gen_spec *spec = codec->spec;
-       return snd_hda_multi_out_analog_prepare(codec, &spec->multiout,
-                                               stream_tag, format, substream);
-}
-
-static int playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
-                               struct hda_codec *codec,
-                               struct snd_pcm_substream *substream)
-{
-       struct hda_gen_spec *spec = codec->spec;
-       return snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
-}
-
 static const struct hda_pcm_stream alc269_44k_pcm_analog_playback = {
-       .substreams = 1,
-       .channels_min = 2,
-       .channels_max = 8,
        .rates = SNDRV_PCM_RATE_44100, /* fixed rate */
-       /* NID is set in alc_build_pcms */
-       .ops = {
-               .open = playback_pcm_open,
-               .prepare = playback_pcm_prepare,
-               .cleanup = playback_pcm_cleanup
-       },
 };
 
 static const struct hda_pcm_stream alc269_44k_pcm_analog_capture = {
-       .substreams = 1,
-       .channels_min = 2,
-       .channels_max = 2,
        .rates = SNDRV_PCM_RATE_44100, /* fixed rate */
-       /* NID is set in alc_build_pcms */
 };
 
 /* different alc269-variants */