ASoC: dapm: Add support for DAI multicodec

Add multicodec support in soc-dapm.c

Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 47 insertions, 20 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 4bf08cffd1f1..5c63c3b49f3f 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2084,12 +2084,8 @@ int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);
 
-/* show dapm widget status in sys fs */
-static ssize_t dapm_widget_show(struct device *dev,
-        struct device_attribute *attr, char *buf)
+static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf)
 {
-        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
-        struct snd_soc_codec *codec =rtd->codec;
         struct snd_soc_dapm_widget *w;
         int count = 0;
         char *state = "not set";
@@ -2142,6 +2138,21 @@ static ssize_t dapm_widget_show(struct device *dev,
         return count;
 }
 
+/* show dapm widget status in sys fs */
+static ssize_t dapm_widget_show(struct device *dev,
+        struct device_attribute *attr, char *buf)
+{
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
+        int i, count = 0;
+
+        for (i = 0; i < rtd->num_codecs; i++) {
+                struct snd_soc_codec *codec = rtd->codec_dais[i]->codec;
+                count += dapm_widget_show_codec(codec, buf + count);
+        }
+
+        return count;
+}
+
 static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
 
 int snd_soc_dapm_sys_add(struct device *dev)
@@ -3395,25 +3406,18 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
         return 0;
 }
 
-void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
+static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
+                                          struct snd_soc_pcm_runtime *rtd)
 {
-        struct snd_soc_pcm_runtime *rtd = card->rtd;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
         struct snd_soc_dapm_widget *sink, *source;
-        struct snd_soc_dai *cpu_dai, *codec_dai;
+        struct snd_soc_dapm_route r;
         int i;
 
-        /* for each BE DAI link... */
-        for (i = 0; i < card->num_rtd; i++) {
-                rtd = &card->rtd[i];
-                cpu_dai = rtd->cpu_dai;
-                codec_dai = rtd->codec_dai;
+        memset(&r, 0, sizeof(r));
 
-                /*
-                 * dynamic FE links have no fixed DAI mapping.
-                 * CODEC<->CODEC links have no direct connection.
-                 */
-                if (rtd->dai_link->dynamic || rtd->dai_link->params)
-                        continue;
+        for (i = 0; i < rtd->num_codecs; i++) {
+                struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
 
                 /* there is no point in connecting BE DAI links with dummies */
                 if (snd_soc_dai_is_dummy(codec_dai) ||
@@ -3475,11 +3479,34 @@ static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream,
         }
 }
 
+void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
+{
+        struct snd_soc_pcm_runtime *rtd = card->rtd;
+        int i;
+
+        /* for each BE DAI link... */
+        for (i = 0; i < card->num_rtd; i++) {
+                rtd = &card->rtd[i];
+
+                /*
+                 * dynamic FE links have no fixed DAI mapping.
+                 * CODEC<->CODEC links have no direct connection.
+                 */
+                if (rtd->dai_link->dynamic || rtd->dai_link->params)
+                        continue;
+
+                dapm_connect_dai_link_widgets(card, rtd);
+        }
+}
+
 static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
         int event)
 {
+        int i;
+
         soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
-        soc_dapm_dai_stream_event(rtd->codec_dai, stream, event);
+        for (i = 0; i < rtd->num_codecs; i++)
+                soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event);
 
         dapm_power_widgets(rtd->card, event);
 }