Re: [PATCH v2 07/16] ASoC: qcom: audioreach: add module configuration command helpers

+static int audioreach_shmem_set_media_format(struct q6apm_graph *graph,
+				       struct audioreach_module *module,
+				       int direction, uint32_t rate,
+				       uint32_t num_channels,
+				       u8 channel_map[PCM_MAX_NUM_CHANNEL],
+				       uint16_t bits_per_sample)
+{
+	struct apm_module_param_data *param_data;
+	struct payload_media_fmt_pcm *cfg;
+	struct media_format *header;
+	int rc, payload_size;
+	struct gpr_pkt *pkt;
+	void *p;
+
+	if (num_channels < 0 || num_channels > 2)
+		dev_err(graph->dev, "Error: Invalid channels (%d)!\n", num_channels);

that doesn't sound good, you flag num_channels as an invalid value but still continue using it.

+
+	payload_size = APM_SHMEM_FMT_CFG_PSIZE(num_channels) + APM_MODULE_PARAM_DATA_SIZE;
+
+	p = audioreach_alloc_cmd_pkt(payload_size, APM_CMD_SET_CFG, 0,
+				     graph->port->id, module->instance_id);
+	if (IS_ERR(p))
+		return -ENOMEM;
+
+	pkt = p;
+	p = p + GPR_HDR_SIZE + APM_CMD_HDR_SIZE;
+
+	param_data = p;
+	param_data->module_instance_id = module->instance_id;
+	param_data->error_code = 0;
+	param_data->param_id = PARAM_ID_MEDIA_FORMAT;
+	param_data->param_size = payload_size - APM_MODULE_PARAM_DATA_SIZE;
+	p = p + APM_MODULE_PARAM_DATA_SIZE;
+
+	header = p;
+	header->data_format = DATA_FORMAT_FIXED_POINT;
+	header->fmt_id = MEDIA_FMT_ID_PCM;
+	header->payload_size = payload_size - sizeof(*header);
+
+	p = p + sizeof(*header);
+	cfg = p;
+	cfg->sample_rate = rate;
+	cfg->bit_width = bits_per_sample;
+	cfg->alignment = PCM_LSB_ALIGNED;
+	cfg->bits_per_sample = bits_per_sample;
+	cfg->q_factor = bits_per_sample - 1;
+	cfg->endianness = PCM_LITTLE_ENDIAN;
+	cfg->num_channels = num_channels;
+
+	if (num_channels == 1) {
+		cfg->channel_mapping[0] =  PCM_CHANNEL_L;
+	} else if (num_channels == 2) {
+		cfg->channel_mapping[0] =  PCM_CHANNEL_L;
+		cfg->channel_mapping[1] =  PCM_CHANNEL_R;
+	} else {
+		dev_err(graph->dev, "Error: Invalid channels (%d)!\n", num_channels);

already tested above.

+	}
+
+	rc = audioreach_graph_send_cmd_sync(graph, pkt, 0);
+
+	kfree(pkt);
+
+	return rc;
+}

+int audioreach_shared_memory_send_eos(struct q6apm_graph *graph)
+{
+	struct data_cmd_wr_sh_mem_ep_eos *eos;
+	struct gpr_pkt *pkt;
+	int rc = 0, iid;

useless init

+	void *p;
+
+	iid = q6apm_graph_get_rx_shmem_module_iid(graph);
+	p = audioreach_alloc_cmd_pkt(sizeof(*eos),
+				      DATA_CMD_WR_SH_MEM_EP_EOS,
+				      0,
+				      graph->port->id, iid);
+	if (IS_ERR(p))
+		return -ENOMEM;
+
+	pkt = p;
+	eos = p + GPR_HDR_SIZE + APM_CMD_HDR_SIZE;
+
+	eos->policy = WR_SH_MEM_EP_EOS_POLICY_LAST;
+
+	rc = gpr_send_port_pkt(graph->port, pkt);
+	kfree(pkt);
+
+	return rc;
+}

+int q6apm_unmap_memory_regions(struct q6apm_graph *graph,
+			       unsigned int dir)
+{
+	struct audioreach_graph_data *data;
+	struct apm_cmd_shared_mem_unmap_regions *cmd = NULL;

useless init

+	struct gpr_pkt *pkt;
+	void *p;
+	int rc;
+
+	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
+		data = &graph->rx_data;
+	else
+		data = &graph->tx_data;
+
+	if (!data->mem_map_handle)
+		return 0;
+
+	p = audioreach_alloc_apm_pkt(sizeof(*cmd),
+				      APM_CMD_SHARED_MEM_UNMAP_REGIONS, dir,
+				      graph->port->id);
+	if (IS_ERR(p))
+		return -ENOMEM;
+
+	pkt = p;
+	cmd = p + GPR_HDR_SIZE;
+	cmd->mem_map_handle = data->mem_map_handle;
+
+	rc = audioreach_graph_send_cmd_sync(graph, pkt, APM_CMD_SHARED_MEM_UNMAP_REGIONS);
+	kfree(pkt);
+
+	audioreach_graph_free_buf(graph);
+
+	return rc;
+}
+EXPORT_SYMBOL_GPL(q6apm_unmap_memory_regions);