ASoC: SOF: Introduce IPC-specific PCM ops

Introduce the IPC-specific PCM ops that will be used to abstract the
PCM related IPC's.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220317175044.1752400-12-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/sof-audio.h

@@ -45,6 +45,23 @@ struct snd_sof_dai_config_data {
 	int dai_data; /* contains DAI-specific information */
 };
 
+/**
+ * struct sof_ipc_pcm_ops - IPC-specific PCM ops
+ * @hw_params: Function pointer for hw_params
+ * @hw_free: Function pointer for hw_free
+ * @trigger: Function pointer for trigger
+ * @dai_link_fixup: Function pointer for DAI link fixup
+ */
+struct sof_ipc_pcm_ops {
+	int (*hw_params)(struct snd_soc_component *component, struct snd_pcm_substream *substream,
+			 struct snd_pcm_hw_params *params,
+			 struct snd_sof_platform_stream_params *platform_params);
+	int (*hw_free)(struct snd_soc_component *component, struct snd_pcm_substream *substream);
+	int (*trigger)(struct snd_soc_component *component,  struct snd_pcm_substream *substream,
+		       int cmd);
+	int (*dai_link_fixup)(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params);
+};
+
 /**
  * struct sof_ipc_tplg_control_ops - IPC-specific ops for topology kcontrol IO
  */

sound/soc/sof/sof-priv.h

@@ -371,15 +371,18 @@ struct sof_ipc_pm_ops {
 };
 
 struct sof_ipc_tplg_ops;
+struct sof_ipc_pcm_ops;
 
 /**
  * struct sof_ipc_ops - IPC-specific ops
  * @tplg:	Pointer to IPC-specific topology ops
  * @pm:		Pointer to PM ops
+ * @pcm:	Pointer to PCM ops
  */
 struct sof_ipc_ops {
 	const struct sof_ipc_tplg_ops *tplg;
 	const struct sof_ipc_pm_ops *pm;
+	const struct sof_ipc_pcm_ops *pcm;
 };
 
 /* SOF generic IPC data */