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[v2,04/11] ASoC: SOF: Intel: hda: add SoundWire stream config/free callbacks

Message ID 20200325215027.28716-5-pierre-louis.bossart@linux.intel.com
State Superseded
Headers show
Series [v2,01/11] ASoC: soc-acpi: expand description of _ADR-based devices | expand

Commit Message

Pierre-Louis Bossart March 25, 2020, 9:50 p.m. UTC 
These callbacks are invoked when a matching hw_params/hw_free() DAI
operation takes place, and will result in IPC operations with the SOF
firmware.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/intel/hda.c | 71 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index c1fe94800da1..1f93124a63cd 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -24,6 +24,7 @@ 
 #include <sound/intel-nhlt.h>
 #include <sound/sof.h>
 #include <sound/sof/xtensa.h>
+#include "../sof-audio.h"
 #include "../ops.h"
 #include "hda.h"
 
@@ -38,6 +39,74 @@ 
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
 
+static int sdw_params_stream(struct device *dev,
+			     struct sdw_intel_stream_params_data *params_data)
+{
+	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
+	struct snd_soc_dai *d = params_data->dai;
+	struct sof_ipc_dai_config config;
+	struct sof_ipc_reply reply;
+	int link_id = params_data->link_id;
+	int alh_stream_id = params_data->alh_stream_id;
+	int ret;
+	u32 size = sizeof(config);
+
+	memset(&config, 0, size);
+	config.hdr.size = size;
+	config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG;
+	config.type = SOF_DAI_INTEL_ALH;
+	config.dai_index = (link_id << 8) | (d->id);
+	config.alh.stream_id = alh_stream_id;
+
+	/* send message to DSP */
+	ret = sof_ipc_tx_message(sdev->ipc,
+				 config.hdr.cmd, &config, size, &reply,
+				 sizeof(reply));
+	if (ret < 0) {
+		dev_err(sdev->dev,
+			"error: failed to set DAI hw_params for link %d dai->id %d ALH %d\n",
+			link_id, d->id, alh_stream_id);
+	}
+
+	return ret;
+}
+
+static int sdw_free_stream(struct device *dev,
+			   struct sdw_intel_stream_free_data *free_data)
+{
+	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
+	struct snd_soc_dai *d = free_data->dai;
+	struct sof_ipc_dai_config config;
+	struct sof_ipc_reply reply;
+	int link_id = free_data->link_id;
+	int ret;
+	u32 size = sizeof(config);
+
+	memset(&config, 0, size);
+	config.hdr.size = size;
+	config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG;
+	config.type = SOF_DAI_INTEL_ALH;
+	config.dai_index = (link_id << 8) | d->id;
+	config.alh.stream_id = 0xFFFF; /* invalid value on purpose */
+
+	/* send message to DSP */
+	ret = sof_ipc_tx_message(sdev->ipc,
+				 config.hdr.cmd, &config, size, &reply,
+				 sizeof(reply));
+	if (ret < 0) {
+		dev_err(sdev->dev,
+			"error: failed to free stream for link %d dai->id %d\n",
+			link_id, d->id);
+	}
+
+	return ret;
+}
+
+static const struct sdw_intel_ops sdw_callback = {
+	.params_stream = sdw_params_stream,
+	.free_stream = sdw_free_stream,
+};
+
 void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable)
 {
 	sdw_intel_enable_irq(sdev->bar[HDA_DSP_BAR], enable);
@@ -80,6 +149,8 @@  static int hda_sdw_probe(struct snd_sof_dev *sdev)
 	res.irq = sdev->ipc_irq;
 	res.handle = hdev->info.handle;
 	res.parent = sdev->dev;
+	res.ops = &sdw_callback;
+	res.dev = sdev->dev;
 
 	/*
 	 * ops and arg fields are not populated for now,