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.boss...@linux.intel.com>
---
sound/soc/sof/intel/hda.c | 70 +++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index d129d5c68f5e..02291e1de1fc 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -41,6 +41,74 @@
#if IS_ENABLED(CONFIG_SOUNDWIRE_INTEL)
+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,
+};
+
static void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable)
{
if (enable) {
@@ -93,6 +161,8 @@ 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,
--
2.20.1
