ASoC: SOF: Intel: Add IPC-specific dai ops for IPC3

The BE DAI driver ops involve operations that are IPC-specific. For ex:
for the HDA DAI, the trigger op involves sending the DAI_CONFIG IPC to
the DSP to stop the DMA for the stop/pause commands. This sequence is
different for IPC3 and IPC4. So, make the dai driver ops IPC-specific
and set the IPC3-specific ops during the ops_init() callback.
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220421203201.1550328-3-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/apl.c

@@ -43,6 +43,9 @@ int sof_apl_ops_init(struct snd_sof_dev *sdev)
 	/* ipc */
 	sof_apl_ops.send_msg	= hda_dsp_ipc_send_msg;
 
+	/* set DAI driver ops */
+	hda_set_dai_drv_ops(sdev, &sof_apl_ops);
+
 	/* debug */
 	sof_apl_ops.debug_map	= apl_dsp_debugfs;
 	sof_apl_ops.debug_map_count	= ARRAY_SIZE(apl_dsp_debugfs);

sound/soc/sof/intel/cnl.c

@@ -261,6 +261,9 @@ int sof_cnl_ops_init(struct snd_sof_dev *sdev)
 	/* ipc */
 	sof_cnl_ops.send_msg	= cnl_ipc_send_msg;
 
+	/* set DAI driver ops */
+	hda_set_dai_drv_ops(sdev, &sof_cnl_ops);
+
 	/* debug */
 	sof_cnl_ops.debug_map	= cnl_dsp_debugfs;
 	sof_cnl_ops.debug_map_count	= ARRAY_SIZE(cnl_dsp_debugfs);

sound/soc/sof/intel/hda-dai.c

@@ -276,7 +276,7 @@ static int hda_link_dai_config_pause_push_ipc(struct snd_soc_dapm_widget *w)
 	return ret;
 }
 
-static int hda_link_pcm_trigger(struct snd_pcm_substream *substream,
+static int ipc3_hda_link_pcm_trigger(struct snd_pcm_substream *substream,
 				     int cmd, struct snd_soc_dai *dai)
 {
 	struct hdac_ext_stream *hext_stream =
@@ -395,10 +395,10 @@ static int hda_link_hw_free(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static const struct snd_soc_dai_ops hda_link_dai_ops = {
+static const struct snd_soc_dai_ops ipc3_hda_link_dai_ops = {
 	.hw_params = hda_link_hw_params,
 	.hw_free = hda_link_hw_free,
-	.trigger = hda_link_pcm_trigger,
+	.trigger = ipc3_hda_link_pcm_trigger,
 	.prepare = hda_link_pcm_prepare,
 };
 
@@ -478,7 +478,7 @@ static int ssp_dai_prepare(struct snd_pcm_substream *substream,
 	return ssp_dai_setup(substream, dai, true);
 }
 
-static int ssp_dai_trigger(struct snd_pcm_substream *substream,
+static int ipc3_ssp_dai_trigger(struct snd_pcm_substream *substream,
 				int cmd, struct snd_soc_dai *dai)
 {
 	if (cmd != SNDRV_PCM_TRIGGER_SUSPEND)
@@ -507,15 +507,39 @@ static void ssp_dai_shutdown(struct snd_pcm_substream *substream,
 	kfree(dma_data);
 }
 
-static const struct snd_soc_dai_ops ssp_dai_ops = {
+static const struct snd_soc_dai_ops ipc3_ssp_dai_ops = {
 	.startup = ssp_dai_startup,
 	.hw_params = ssp_dai_hw_params,
 	.prepare = ssp_dai_prepare,
-	.trigger = ssp_dai_trigger,
+	.trigger = ipc3_ssp_dai_trigger,
 	.hw_free = ssp_dai_hw_free,
 	.shutdown = ssp_dai_shutdown,
 };
 
+void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
+{
+	int i;
+
+	switch (sdev->pdata->ipc_type) {
+	case SOF_IPC:
+		for (i = 0; i < ops->num_drv; i++) {
+			if (strstr(ops->drv[i].name, "SSP")) {
+				ops->drv[i].ops = &ipc3_ssp_dai_ops;
+				continue;
+			}
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+			if (strstr(ops->drv[i].name, "iDisp") ||
+			    strstr(ops->drv[i].name, "Analog") ||
+			    strstr(ops->drv[i].name, "Digital"))
+				ops->drv[i].ops = &ipc3_hda_link_dai_ops;
+#endif
+		}
+		break;
+	default:
+		break;
+	}
+}
+
 /*
  * common dai driver for skl+ platforms.
  * some products who use this DAI array only physically have a subset of
@@ -524,7 +548,6 @@ static const struct snd_soc_dai_ops ssp_dai_ops = {
 struct snd_soc_dai_driver skl_dai[] = {
 {
 	.name = "SSP0 Pin",
-	.ops = &ssp_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -536,7 +559,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "SSP1 Pin",
-	.ops = &ssp_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -548,7 +570,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "SSP2 Pin",
-	.ops = &ssp_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -560,7 +581,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "SSP3 Pin",
-	.ops = &ssp_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -572,7 +592,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "SSP4 Pin",
-	.ops = &ssp_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -584,7 +603,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "SSP5 Pin",
-	.ops = &ssp_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -611,7 +629,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 {
 	.name = "iDisp1 Pin",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -619,7 +636,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "iDisp2 Pin",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -627,7 +643,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "iDisp3 Pin",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -635,7 +650,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "iDisp4 Pin",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 8,
@@ -643,7 +657,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "Analog CPU DAI",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 16,
@@ -655,7 +668,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "Digital CPU DAI",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 16,
@@ -667,7 +679,6 @@ struct snd_soc_dai_driver skl_dai[] = {
 },
 {
 	.name = "Alt Analog CPU DAI",
-	.ops = &hda_link_dai_ops,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 16,

sound/soc/sof/intel/hda.h

@@ -761,4 +761,6 @@ int hda_ctrl_dai_widget_free(struct snd_soc_dapm_widget *w, unsigned int quirk_f
 
 extern int sof_hda_position_quirk;
 
+void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops);
+
 #endif

sound/soc/sof/intel/icl.c

@@ -127,6 +127,9 @@ int sof_icl_ops_init(struct snd_sof_dev *sdev)
 	/* dsp core get/put */
 	sof_icl_ops.core_get = hda_dsp_core_get;
 
+	/* set DAI driver ops */
+	hda_set_dai_drv_ops(sdev, &sof_icl_ops);
+
 	return 0;
 };
 EXPORT_SYMBOL_NS(sof_icl_ops_init, SND_SOC_SOF_INTEL_HDA_COMMON);

sound/soc/sof/intel/tgl.c

@@ -76,6 +76,9 @@ int sof_tgl_ops_init(struct snd_sof_dev *sdev)
 	/* ipc */
 	sof_tgl_ops.send_msg	= cnl_ipc_send_msg;
 
+	/* set DAI driver ops */
+	hda_set_dai_drv_ops(sdev, &sof_tgl_ops);
+
 	/* debug */
 	sof_tgl_ops.debug_map	= tgl_dsp_debugfs;
 	sof_tgl_ops.debug_map_count	= ARRAY_SIZE(tgl_dsp_debugfs);