ASoC: SOF: Define hw_params PCM op for IPC3

Add the hw_params op for IPC3 and use it.

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/20220317175044.1752400-15-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 100 insertions, 0 deletions

diff --git a/sound/soc/sof/ipc3-pcm.c b/sound/soc/sof/ipc3-pcm.c
index 96f498b4b2d6..b715199a2aaa 100644
--- a/sound/soc/sof/ipc3-pcm.c
+++ b/sound/soc/sof/ipc3-pcm.c
@@ -38,6 +38,106 @@ static int sof_ipc3_pcm_hw_free(struct snd_soc_component *component,
 				  sizeof(stream), &reply, sizeof(reply));
 }
 
+static int sof_ipc3_pcm_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)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct sof_ipc_fw_version *v = &sdev->fw_ready.version;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct sof_ipc_pcm_params_reply ipc_params_reply;
+	struct sof_ipc_pcm_params pcm;
+	struct snd_sof_pcm *spcm;
+	int ret;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm)
+		return -EINVAL;
+
+	memset(&pcm, 0, sizeof(pcm));
+
+	/* number of pages should be rounded up */
+	pcm.params.buffer.pages = PFN_UP(runtime->dma_bytes);
+
+	/* set IPC PCM parameters */
+	pcm.hdr.size = sizeof(pcm);
+	pcm.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS;
+	pcm.comp_id = spcm->stream[substream->stream].comp_id;
+	pcm.params.hdr.size = sizeof(pcm.params);
+	pcm.params.buffer.phy_addr = spcm->stream[substream->stream].page_table.addr;
+	pcm.params.buffer.size = runtime->dma_bytes;
+	pcm.params.direction = substream->stream;
+	pcm.params.sample_valid_bytes = params_width(params) >> 3;
+	pcm.params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
+	pcm.params.rate = params_rate(params);
+	pcm.params.channels = params_channels(params);
+	pcm.params.host_period_bytes = params_period_bytes(params);
+
+	/* container size */
+	ret = snd_pcm_format_physical_width(params_format(params));
+	if (ret < 0)
+		return ret;
+	pcm.params.sample_container_bytes = ret >> 3;
+
+	/* format */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16:
+		pcm.params.frame_fmt = SOF_IPC_FRAME_S16_LE;
+		break;
+	case SNDRV_PCM_FORMAT_S24:
+		pcm.params.frame_fmt = SOF_IPC_FRAME_S24_4LE;
+		break;
+	case SNDRV_PCM_FORMAT_S32:
+		pcm.params.frame_fmt = SOF_IPC_FRAME_S32_LE;
+		break;
+	case SNDRV_PCM_FORMAT_FLOAT:
+		pcm.params.frame_fmt = SOF_IPC_FRAME_FLOAT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Update the IPC message with information from the platform */
+	pcm.params.stream_tag = platform_params->stream_tag;
+
+	if (platform_params->use_phy_address)
+		pcm.params.buffer.phy_addr = platform_params->phy_addr;
+
+	if (platform_params->no_ipc_position) {
+		/* For older ABIs set host_period_bytes to zero to inform
+		 * FW we don't want position updates. Newer versions use
+		 * no_stream_position for this purpose.
+		 */
+		if (v->abi_version < SOF_ABI_VER(3, 10, 0))
+			pcm.params.host_period_bytes = 0;
+		else
+			pcm.params.no_stream_position = 1;
+	}
+
+	dev_dbg(component->dev, "stream_tag %d", pcm.params.stream_tag);
+
+	/* send hw_params IPC to the DSP */
+	ret = sof_ipc_tx_message(sdev->ipc, pcm.hdr.cmd, &pcm, sizeof(pcm),
+				 &ipc_params_reply, sizeof(ipc_params_reply));
+	if (ret < 0) {
+		dev_err(component->dev, "HW params ipc failed for stream %d\n",
+			pcm.params.stream_tag);
+		return ret;
+	}
+
+	ret = snd_sof_set_stream_data_offset(sdev, substream, ipc_params_reply.posn_offset);
+	if (ret < 0) {
+		dev_err(component->dev, "%s: invalid stream data offset for PCM %d\n",
+			__func__, spcm->pcm.pcm_id);
+		return ret;
+	}
+
+	return ret;
+}
+
 const struct sof_ipc_pcm_ops ipc3_pcm_ops = {
+	.hw_params = sof_ipc3_pcm_hw_params,
 	.hw_free = sof_ipc3_pcm_hw_free,
 };