ASoC: SOF: Intel: Add Probe compress CPU DAIs

Declare extraction CPU DAI as well as sof_probe_compr_ops. FE DAIs can
link against these new CPU DAI to create new compress devices.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200218143924.10565-10-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/compress.c

@@ -13,6 +13,11 @@
 #include "ops.h"
 #include "probe.h"
 
+struct snd_compr_ops sof_probe_compressed_ops = {
+	.copy		= sof_probe_compr_copy,
+};
+EXPORT_SYMBOL(sof_probe_compressed_ops);
+
 int sof_probe_compr_open(struct snd_compr_stream *cstream,
 		struct snd_soc_dai *dai)
 {

sound/soc/sof/compress.h

@@ -13,6 +13,8 @@
 
 #include <sound/compress_driver.h>
 
+extern struct snd_compr_ops sof_probe_compressed_ops;
+
 int sof_probe_compr_open(struct snd_compr_stream *cstream,
 		struct snd_soc_dai *dai);
 int sof_probe_compr_free(struct snd_compr_stream *cstream,

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

@@ -399,6 +399,19 @@ static const struct snd_soc_dai_ops hda_link_dai_ops = {
 	.trigger = hda_link_pcm_trigger,
 	.prepare = hda_link_pcm_prepare,
 };
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
+#include "../compress.h"
+
+static struct snd_soc_cdai_ops sof_probe_compr_ops = {
+	.startup	= sof_probe_compr_open,
+	.shutdown	= sof_probe_compr_free,
+	.set_params	= sof_probe_compr_set_params,
+	.trigger	= sof_probe_compr_trigger,
+	.pointer	= sof_probe_compr_pointer,
+};
+
+#endif
 #endif
 
 /*
@@ -460,5 +473,20 @@ struct snd_soc_dai_driver skl_dai[] = {
 	.name = "Alt Analog CPU DAI",
 	.ops = &hda_link_dai_ops,
 },
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
+{
+	.name = "Probe Extraction CPU DAI",
+	.compress_new = snd_soc_new_compress,
+	.cops = &sof_probe_compr_ops,
+	.capture = {
+		.stream_name = "Probe Extraction",
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_48000,
+		.rate_min = 48000,
+		.rate_max = 48000,
+	},
+},
+#endif
 #endif
 };

sound/soc/sof/intel/hda.h

@@ -349,7 +349,13 @@
 
 /* Number of DAIs */
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
+#define SOF_SKL_NUM_DAIS		16
+#else
 #define SOF_SKL_NUM_DAIS		15
+#endif
+
 #else
 #define SOF_SKL_NUM_DAIS		8
 #endif

sound/soc/sof/pcm.c

@@ -16,6 +16,9 @@
 #include "sof-priv.h"
 #include "sof-audio.h"
 #include "ops.h"
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
+#include "compress.h"
+#endif
 
 /* Create DMA buffer page table for DSP */
 static int create_page_table(struct snd_soc_component *component,
@@ -787,6 +790,10 @@ void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS)
 	pd->compr_ops = &sof_compressed_ops;
+#endif
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
+	/* override cops when probe support is enabled */
+	pd->compr_ops = &sof_probe_compressed_ops;
 #endif
 	pd->pcm_construct = sof_pcm_new;
 	pd->ignore_machine = drv_name;