1 files changed, 155 insertions, 0 deletions
diff --git a/sound/soc/soc-link.c b/sound/soc/soc-link.c
new file mode 100644
index 000000000000..f849278beba0
--- /dev/null
+++ b/sound/soc/soc-link.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// soc-link.c
+//
+// Copyright (C) 2019 Renesas Electronics Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+#include <sound/soc.h>
+#include <sound/soc-link.h>
+
+#define soc_link_ret(rtd, ret) _soc_link_ret(rtd, __func__, ret)
+static inline int _soc_link_ret(struct snd_soc_pcm_runtime *rtd,
+				const char *func, int ret)
+{
+	/* Positive, Zero values are not errors */
+	if (ret >= 0)
+		return ret;
+
+	/* Negative values might be errors */
+	switch (ret) {
+	case -EPROBE_DEFER:
+	case -ENOTSUPP:
+		break;
+	default:
+		dev_err(rtd->dev,
+			"ASoC: error at %s on %s: %d\n",
+			func, rtd->dai_link->name, ret);
+	}
+
+	return ret;
+}
+
+int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret = 0;
+
+	if (rtd->dai_link->init)
+		ret = rtd->dai_link->init(rtd);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				    struct snd_pcm_hw_params *params)
+{
+	int ret = 0;
+
+	if (rtd->dai_link->be_hw_params_fixup)
+		ret = rtd->dai_link->be_hw_params_fixup(rtd, params);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->startup)
+		ret = rtd->dai_link->ops->startup(substream);
+
+	return soc_link_ret(rtd, ret);
+}
+
+void snd_soc_link_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->shutdown)
+		rtd->dai_link->ops->shutdown(substream);
+}
+
+int snd_soc_link_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->prepare)
+		ret = rtd->dai_link->ops->prepare(substream);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_hw_params(struct snd_pcm_substream *substream,
+			   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->hw_params)
+		ret = rtd->dai_link->ops->hw_params(substream, params);
+
+	return soc_link_ret(rtd, ret);
+}
+
+void snd_soc_link_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->hw_free)
+		rtd->dai_link->ops->hw_free(substream);
+}
+
+int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->trigger)
+		ret = rtd->dai_link->ops->trigger(substream, cmd);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_compr_startup(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->compr_ops &&
+	    rtd->dai_link->compr_ops->startup)
+		ret = rtd->dai_link->compr_ops->startup(cstream);
+
+	return soc_link_ret(rtd, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_link_compr_startup);
+
+void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+
+	if (rtd->dai_link->compr_ops &&
+	    rtd->dai_link->compr_ops->shutdown)
+		rtd->dai_link->compr_ops->shutdown(cstream);
+}
+EXPORT_SYMBOL_GPL(snd_soc_link_compr_shutdown);
+
+int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->compr_ops &&
+	    rtd->dai_link->compr_ops->set_params)
+		ret = rtd->dai_link->compr_ops->set_params(cstream);
+
+	return soc_link_ret(rtd, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_link_compr_set_params);