sof/tools/tplg_parser/pipeline.c

// SPDX-License-Identifier: BSD-3-Clause
//
// Copyright(c) 2019 Intel Corporation. All rights reserved.
//
// Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>

/* Topology parser */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <errno.h>
#include <string.h>
#include <ipc/topology.h>
#include <sof/lib/uuid.h>
#include <sof/ipc/topology.h>
#include <tplg_parser/topology.h>
#include <tplg_parser/tokens.h>

/* scheduling */
static const struct sof_topology_token sched_tokens[] = {
	{SOF_TKN_SCHED_PERIOD, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_uint32_t,
		offsetof(struct sof_ipc_pipe_new, period), 0},
	{SOF_TKN_SCHED_PRIORITY, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_uint32_t,
		offsetof(struct sof_ipc_pipe_new, priority), 0},
	{SOF_TKN_SCHED_MIPS, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_uint32_t,
		offsetof(struct sof_ipc_pipe_new, period_mips), 0},
	{SOF_TKN_SCHED_CORE, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_uint32_t,
		offsetof(struct sof_ipc_pipe_new, core), 0},
	{SOF_TKN_SCHED_FRAMES, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_uint32_t,
		offsetof(struct sof_ipc_pipe_new, frames_per_sched), 0},
	{SOF_TKN_SCHED_TIME_DOMAIN, SND_SOC_TPLG_TUPLE_TYPE_WORD,
		get_token_uint32_t,
		offsetof(struct sof_ipc_pipe_new, time_domain), 0},
};

/* load scheduler dapm widget */
int tplg_create_pipeline(struct tplg_context *ctx,
		       struct sof_ipc_pipe_new *pipeline)
{
	struct snd_soc_tplg_vendor_array *array = NULL;
	size_t total_array_size = 0, read_size;
	FILE *file = ctx->file;
	int size = ctx->widget->priv.size;
	int comp_id = ctx->comp_id;
	int ret;

	/* configure pipeline */
	pipeline->comp_id = comp_id;
	pipeline->pipeline_id = ctx->pipeline_id;
	pipeline->hdr.size = sizeof(*pipeline);
	pipeline->hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_PIPE_NEW;

	/* allocate memory for vendor tuple array */
	array = (struct snd_soc_tplg_vendor_array *)malloc(size);
	if (!array) {
		fprintf(stderr, "error: mem alloc\n");
		return -errno;
	}

	/* read vendor arrays */
	while (total_array_size < size) {
		read_size = sizeof(struct snd_soc_tplg_vendor_array);
		ret = fread(array, read_size, 1, file);
		if (ret != 1) {
			free(MOVE_POINTER_BY_BYTES(array, -total_array_size));
			return -EINVAL;
		}

		/* check for array size mismatch */
		if (!is_valid_priv_size(total_array_size, size, array)) {
			fprintf(stderr, "error: load pipeline array size mismatch\n");
			free(MOVE_POINTER_BY_BYTES(array, -total_array_size));
			return -EINVAL;
		}

		ret = tplg_read_array(array, file);
		if (ret) {
			fprintf(stderr, "error: read array fail\n");
			free(MOVE_POINTER_BY_BYTES(array, -total_array_size));
			return -EINVAL;
		}

		/* parse scheduler tokens */
		ret = sof_parse_tokens(pipeline, sched_tokens,
				       ARRAY_SIZE(sched_tokens), array,
				       array->size);
		if (ret != 0) {
			fprintf(stderr, "error: parse pipeline tokens %d\n",
				size);
			free(MOVE_POINTER_BY_BYTES(array, -total_array_size));
			return -EINVAL;
		}

		total_array_size += array->size;

		/* read next array */
		array = MOVE_POINTER_BY_BYTES(array, array->size);
	}

	/* point to the start of array so it gets freed properly */
	array = MOVE_POINTER_BY_BYTES(array, -total_array_size);

	free(array);
	return 0;
}


/* load pipeline dapm widget */
int tplg_new_pipeline(struct tplg_context *ctx, struct sof_ipc_pipe_new *pipeline,
		struct snd_soc_tplg_ctl_hdr *rctl)
{
	int ret;

	ret = tplg_create_pipeline(ctx, pipeline);
	if (ret < 0)
		return ret;

	if (tplg_create_controls(ctx->widget->num_kcontrols, ctx->file, rctl, 0) < 0) {
		fprintf(stderr, "error: loading controls\n");
		return -EINVAL;
	}

	return ret;
}