The topology core parses the high level topology file and calls the individual object parsers when any new object element is detected at the high level.
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com --- include/topology.h | 75 ++++++++++ src/topology/elem.c | 185 ++++++++++++++++++++++++ src/topology/parser.c | 357 ++++++++++++++++++++++++++++++++++++++++++++++ src/topology/tplg_local.h | 222 ++++++++++++++++++++++++++++ 4 files changed, 839 insertions(+) create mode 100644 include/topology.h create mode 100644 src/topology/elem.c create mode 100644 src/topology/parser.c create mode 100644 src/topology/tplg_local.h
diff --git a/include/topology.h b/include/topology.h new file mode 100644 index 0000000..d9b223f --- /dev/null +++ b/include/topology.h @@ -0,0 +1,75 @@ +/* + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (C) 2015 Intel Corporation + * + */ + +#ifndef __ALSA_TOPOLOGY_H +#define __ALSA_TOPOLOGY_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \defgroup topology Topology Interface + * The topology interface. + * See \ref Topology page for more details. + * { + */ + +/*! \page topology ALSA Topology Interface + * + * ALSA Topology Interface + * + */ + +typedef struct snd_tplg snd_tplg_t; + +/** + * \brief Create a new topology parser instance. + * \return New topology parser instance + */ +snd_tplg_t *snd_tplg_new(void); + +/** + * \brief Free a topology parser instance. + * \param tplg Topology parser instance + */ +void snd_tplg_free(snd_tplg_t *tplg); + +/** + * \brief Parse and build topology text file into binary file. + * \param tplg Topology instance. + * \param infile Topology text input file to be parsed + * \param outfile Binary topology output file. + * \return Zero on sucess, otherwise a negative error code + */ +int snd_tplg_build(snd_tplg_t *tplg, const char *infile, const char *outfile); + +/** + * \brief Enable verbose reporting of binary file output + * \param tplg Topology Instance + * \param verbose Enable verbose output if non zero + */ +void snd_tplg_verbose(snd_tplg_t *tplg, int verbose); + +#ifdef __cplusplus +} +#endif + +#endif /* __ALSA_TOPOLOGY_H */ diff --git a/src/topology/elem.c b/src/topology/elem.c new file mode 100644 index 0000000..1da7c60 --- /dev/null +++ b/src/topology/elem.c @@ -0,0 +1,185 @@ +/* + Copyright(c) 2014-2015 Intel Corporation + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + Authors: Mengdong Lin mengdong.lin@intel.com + Yao Jin yao.jin@intel.com + Liam Girdwood liam.r.girdwood@linux.intel.com +*/ + +#include "list.h" +#include "tplg_local.h" + +int tplg_ref_add(struct tplg_elem *elem, int type, const char* id) +{ + struct tplg_ref *ref; + + ref = calloc(1, sizeof(*ref)); + if (!ref) + return -ENOMEM; + + strncpy(ref->id, id, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + ref->type = type; + + list_add_tail(&ref->list, &elem->ref_list); + return 0; +} + +void tplg_ref_free_list(struct list_head *base) +{ + struct list_head *pos, *npos; + struct tplg_ref *ref; + + list_for_each_safe(pos, npos, base) { + ref = list_entry(pos, struct tplg_ref, list); + list_del(&ref->list); + free(ref); + } +} + +struct tplg_elem *tplg_elem_new(void) +{ + struct tplg_elem *elem; + + elem = calloc(1, sizeof(*elem)); + if (!elem) + return NULL; + + INIT_LIST_HEAD(&elem->ref_list); + return elem; +} + +void tplg_elem_free(struct tplg_elem *elem) +{ + tplg_ref_free_list(&elem->ref_list); + + /* free struct snd_tplg_ object, + * the union pointers share the same address + */ + if (elem->mixer_ctrl) + free(elem->mixer_ctrl); + + free(elem); +} + +void tplg_elem_free_list(struct list_head *base) +{ + struct list_head *pos, *npos; + struct tplg_elem *elem; + + list_for_each_safe(pos, npos, base) { + elem = list_entry(pos, struct tplg_elem, list); + list_del(&elem->list); + tplg_elem_free(elem); + } +} + +struct tplg_elem *tplg_elem_lookup(struct list_head *base, const char* id, + unsigned int type) +{ + struct list_head *pos, *npos; + struct tplg_elem *elem; + + list_for_each_safe(pos, npos, base) { + + elem = list_entry(pos, struct tplg_elem, list); + + if (!strcmp(elem->id, id) && elem->type == type) + return elem; + } + + return NULL; +} + +/* create a new common element and object */ +struct tplg_elem* tplg_elem_new_common(snd_tplg_t *tplg, + snd_config_t *cfg, enum parser_type type) +{ + struct tplg_elem *elem; + const char *id; + int obj_size = 0; + void *obj; + + elem = tplg_elem_new(); + if (!elem) + return NULL; + + snd_config_get_id(cfg, &id); + strncpy(elem->id, id, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); + + switch (type) { + case PARSER_TYPE_DATA: + list_add_tail(&elem->list, &tplg->pdata_list); + break; + case PARSER_TYPE_TEXT: + list_add_tail(&elem->list, &tplg->text_list); + break; + case PARSER_TYPE_TLV: + list_add_tail(&elem->list, &tplg->tlv_list); + elem->size = sizeof(struct snd_soc_tplg_ctl_tlv); + break; + case PARSER_TYPE_BYTES: + list_add_tail(&elem->list, &tplg->bytes_ext_list); + obj_size = sizeof(struct snd_soc_tplg_bytes_control); + break; + case PARSER_TYPE_ENUM: + list_add_tail(&elem->list, &tplg->enum_list); + obj_size = sizeof(struct snd_soc_tplg_enum_control); + break; + case SND_SOC_TPLG_TYPE_MIXER: + list_add_tail(&elem->list, &tplg->mixer_list); + obj_size = sizeof(struct snd_soc_tplg_mixer_control); + break; + case PARSER_TYPE_DAPM_WIDGET: + list_add_tail(&elem->list, &tplg->widget_list); + obj_size = sizeof(struct snd_soc_tplg_dapm_widget); + break; + case PARSER_TYPE_STREAM_CONFIG: + list_add_tail(&elem->list, &tplg->pcm_config_list); + obj_size = sizeof(struct snd_soc_tplg_stream_config); + break; + case PARSER_TYPE_STREAM_CAPS: + list_add_tail(&elem->list, &tplg->pcm_caps_list); + obj_size = sizeof(struct snd_soc_tplg_stream_caps); + break; + case PARSER_TYPE_PCM: + list_add_tail(&elem->list, &tplg->pcm_list); + obj_size = sizeof(struct snd_soc_tplg_pcm_dai); + break; + case PARSER_TYPE_BE: + list_add_tail(&elem->list, &tplg->be_list); + obj_size = sizeof(struct snd_soc_tplg_pcm_dai); + break; + case PARSER_TYPE_CC: + list_add_tail(&elem->list, &tplg->cc_list); + obj_size = sizeof(struct snd_soc_tplg_pcm_dai); + break; + default: + free(elem); + return NULL; + } + + /* create new object too if required */ + if (obj_size > 0) { + obj = calloc(1, obj_size); + if (obj == NULL) { + free(elem); + return NULL; + } + + elem->obj = obj; + elem->size = obj_size; + } + + elem->type = type; + return elem; +} diff --git a/src/topology/parser.c b/src/topology/parser.c new file mode 100644 index 0000000..f813deb --- /dev/null +++ b/src/topology/parser.c @@ -0,0 +1,357 @@ +/* + Copyright(c) 2014-2015 Intel Corporation + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + Authors: Mengdong Lin mengdong.lin@intel.com + Yao Jin yao.jin@intel.com + Liam Girdwood liam.r.girdwood@linux.intel.com +*/ + +#include "list.h" +#include "tplg_local.h" + +/* + * Parse compound + */ +int tplg_parse_compound(snd_tplg_t *tplg, snd_config_t *cfg, + int (*fcn)(snd_tplg_t *, snd_config_t *, void *), + void *private) +{ + const char *id; + snd_config_iterator_t i, next; + snd_config_t *n; + int err = -EINVAL; + + if (snd_config_get_id(cfg, &id) < 0) + return -EINVAL; + + if (snd_config_get_type(cfg) != SND_CONFIG_TYPE_COMPOUND) { + fprintf(stderr, "error: compound type expected for %s", id); + return -EINVAL; + } + + /* parse compound */ + snd_config_for_each(i, next, cfg) { + n = snd_config_iterator_entry(i); + + if (snd_config_get_type(cfg) != SND_CONFIG_TYPE_COMPOUND) { + fprintf(stderr, "error: compound type expected for %s, is %d", + id, snd_config_get_type(cfg)); + return -EINVAL; + } + + err = fcn(tplg, n, private); + if (err < 0) + return err; + } + + return err; +} + +static int tplg_parse_config(snd_tplg_t *tplg, snd_config_t *cfg) +{ + snd_config_iterator_t i, next; + snd_config_t *n; + const char *id; + int err; + + if (snd_config_get_type(cfg) != SND_CONFIG_TYPE_COMPOUND) { + fprintf(stderr, "error: compound type expected at top level"); + return -EINVAL; + } + + /* parse topology config sections */ + snd_config_for_each(i, next, cfg) { + + n = snd_config_iterator_entry(i); + if (snd_config_get_id(n, &id) < 0) + continue; + + if (strcmp(id, "SectionTLV") == 0) { + err = tplg_parse_compound(tplg, n, tplg_parse_tlv, + NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionControlMixer") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_control_mixer, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionControlEnum") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_control_enum, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionControlBytes") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_control_bytes, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionWidget") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_dapm_widget, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionPCMConfig") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_pcm_config, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionPCMCapabilities") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_pcm_caps, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionPCM") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_pcm, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionBE") == 0) { + err = tplg_parse_compound(tplg, n, tplg_parse_be, + NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionCC") == 0) { + err = tplg_parse_compound(tplg, n, tplg_parse_cc, + NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionGraph") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_dapm_graph, NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionText") == 0) { + err = tplg_parse_compound(tplg, n, tplg_parse_text, + NULL); + if (err < 0) + return err; + continue; + } + + if (strcmp(id, "SectionData") == 0) { + err = tplg_parse_compound(tplg, n, tplg_parse_data, + NULL); + if (err < 0) + return err; + continue; + } + + fprintf(stderr, "error: unknown section %s\n", id); + } + return 0; +} + +static int tplg_load_config(const char *file, snd_config_t **cfg) +{ + FILE *fp; + snd_input_t *in; + snd_config_t *top; + int ret; + + fp = fopen(file, "r"); + if (fp == NULL) { + fprintf(stdout, "error: could not open configuration file %s", + file); + return -errno; + } + + ret = snd_input_stdio_attach(&in, fp, 1); + if (ret < 0) { + fprintf(stdout, "error: could not attach stdio %s", file); + goto err; + } + ret = snd_config_top(&top); + if (ret < 0) + goto err; + + ret = snd_config_load(top, in); + if (ret < 0) { + fprintf(stdout, "error: could not load configuration file %s", + file); + goto err_load; + } + + ret = snd_input_close(in); + if (ret < 0) + goto err_load; + + *cfg = top; + return 0; + +err_load: + snd_config_delete(top); +err: + fclose(fp); + return ret; +} + +static int tplg_build_integ(snd_tplg_t *tplg) +{ + int err; + + err = tplg_build_controls(tplg); + if (err < 0) + return err; + + err = tplg_build_widgets(tplg); + if (err < 0) + return err; + + err = tplg_build_pcm_dai(tplg, PARSER_TYPE_PCM); + if (err < 0) + return err; + + err = tplg_build_pcm_dai(tplg, PARSER_TYPE_BE); + if (err < 0) + return err; + + err = tplg_build_pcm_dai(tplg, PARSER_TYPE_CC); + if (err < 0) + return err; + + err = tplg_build_routes(tplg); + if (err < 0) + return err; + + return err; +} + +int snd_tplg_build(snd_tplg_t *tplg, const char *infile, const char *outfile) +{ + snd_config_t *cfg = NULL; + int err = 0; + + /* delete any old output files */ + unlink(outfile); + + tplg->out_fd = + open(outfile, O_RDWR | O_CREAT, S_IRWXU | S_IRWXG | S_IRWXO); + if (tplg->out_fd < 0) { + fprintf(stderr, "error: failed to open %s err %d\n", + outfile, -errno); + return -errno; + } + + err = tplg_load_config(infile, &cfg); + if (err < 0) { + fprintf(stderr, "error: failed to load topology file %s\n", + infile); + return err; + } + + err = tplg_parse_config(tplg, cfg); + if (err < 0) { + fprintf(stderr, "error: failed to parse topology\n"); + goto out; + } + + err = tplg_build_integ(tplg); + if (err < 0) { + fprintf(stderr, "error: failed to check topology integrity\n"); + goto out; + } + + err = tplg_write_data(tplg); + if (err < 0) { + fprintf(stderr, "error: failed to write data %d\n", err); + goto out; + } + +out: + snd_config_delete(cfg); + close(tplg->out_fd); + return err; +} + +void snd_tplg_verbose(snd_tplg_t *tplg, int verbose) +{ + tplg->verbose = verbose; +} + +snd_tplg_t *snd_tplg_new(void) +{ + snd_tplg_t *tplg; + + tplg = calloc(1, sizeof(snd_tplg_t)); + if (!tplg) + return NULL; + + INIT_LIST_HEAD(&tplg->tlv_list); + INIT_LIST_HEAD(&tplg->widget_list); + INIT_LIST_HEAD(&tplg->pcm_list); + INIT_LIST_HEAD(&tplg->be_list); + INIT_LIST_HEAD(&tplg->cc_list); + INIT_LIST_HEAD(&tplg->route_list); + INIT_LIST_HEAD(&tplg->pdata_list); + INIT_LIST_HEAD(&tplg->text_list); + INIT_LIST_HEAD(&tplg->pcm_config_list); + INIT_LIST_HEAD(&tplg->pcm_caps_list); + INIT_LIST_HEAD(&tplg->mixer_list); + INIT_LIST_HEAD(&tplg->enum_list); + INIT_LIST_HEAD(&tplg->bytes_ext_list); + + return tplg; +} + +void snd_tplg_free(snd_tplg_t *tplg) +{ + tplg_elem_free_list(&tplg->tlv_list); + tplg_elem_free_list(&tplg->widget_list); + tplg_elem_free_list(&tplg->pcm_list); + tplg_elem_free_list(&tplg->be_list); + tplg_elem_free_list(&tplg->cc_list); + tplg_elem_free_list(&tplg->route_list); + tplg_elem_free_list(&tplg->pdata_list); + tplg_elem_free_list(&tplg->text_list); + tplg_elem_free_list(&tplg->pcm_config_list); + tplg_elem_free_list(&tplg->pcm_caps_list); + tplg_elem_free_list(&tplg->mixer_list); + tplg_elem_free_list(&tplg->enum_list); + tplg_elem_free_list(&tplg->bytes_ext_list); + + free(tplg); +} diff --git a/src/topology/tplg_local.h b/src/topology/tplg_local.h new file mode 100644 index 0000000..9c9c490 --- /dev/null +++ b/src/topology/tplg_local.h @@ -0,0 +1,222 @@ +/* + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#include <limits.h> +#include <stdint.h> +#include <linux/types.h> + +#include "local.h" +#include "list.h" +#include "topology.h" + +#include <sound/asound.h> +#include <sound/asoc.h> +#include <sound/tlv.h> + +#define TPLG_DEBUG +#ifdef TPLG_DEBUG +#define tplg_dbg SNDERR +#else +#define tplg_dbg(fmt, arg...) do { } while (0) +#endif + +#define MAX_FILE 256 +#define ALSA_TPLG_DIR ALSA_CONFIG_DIR "/topology" +#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) + +/** The name of the environment variable containing the tplg directory */ +#define ALSA_CONFIG_TPLG_VAR "ALSA_CONFIG_TPLG" + +struct tplg_ref; +struct tplg_elem; + +/* internal topology object type not used by kernel */ +enum parser_type { + PARSER_TYPE_TLV = 0, + PARSER_TYPE_MIXER, + PARSER_TYPE_ENUM, + PARSER_TYPE_TEXT, + PARSER_TYPE_DATA, + PARSER_TYPE_BYTES, + PARSER_TYPE_STREAM_CONFIG, + PARSER_TYPE_STREAM_CAPS, + PARSER_TYPE_PCM, + PARSER_TYPE_DAPM_WIDGET, + PARSER_TYPE_DAPM_GRAPH, + PARSER_TYPE_BE, + PARSER_TYPE_CC, +}; + +struct snd_tplg { + + /* opaque vendor data */ + int vendor_fd; + char *vendor_name; + + /* out file */ + int out_fd; + + int verbose; + unsigned int version; + + /* runtime state */ + unsigned int next_hdr_pos; + int index; + int channel_idx; + + /* list of each element type */ + struct list_head tlv_list; + struct list_head widget_list; + struct list_head pcm_list; + struct list_head be_list; + struct list_head cc_list; + struct list_head route_list; + struct list_head text_list; + struct list_head pdata_list; + struct list_head pcm_config_list; + struct list_head pcm_caps_list; + + /* type-specific control lists */ + struct list_head mixer_list; + struct list_head enum_list; + struct list_head bytes_ext_list; +}; + +/* object text references */ +struct tplg_ref { + unsigned int type; + struct tplg_elem *elem; + char id[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + struct list_head list; +}; + +/* topology element */ +struct tplg_elem { + + char id[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + + /* storage for texts and data if this is text or data elem*/ + char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + + int index; + enum parser_type type; + + int size; /* total size of this object inc pdata and ref objects */ + int compound_elem; /* dont write this element as individual elem */ + + /* UAPI object for this elem */ + union { + void *obj; + struct snd_soc_tplg_mixer_control *mixer_ctrl; + struct snd_soc_tplg_enum_control *enum_ctrl; + struct snd_soc_tplg_bytes_control *bytes_ext; + struct snd_soc_tplg_dapm_widget *widget; + struct snd_soc_tplg_pcm_dai *pcm; + struct snd_soc_tplg_pcm_dai *be; + struct snd_soc_tplg_pcm_dai *cc; + struct snd_soc_tplg_dapm_graph_elem *route; + struct snd_soc_tplg_stream_config *stream_cfg; + struct snd_soc_tplg_stream_caps *stream_caps; + + /* these do not map to UAPI structs but are internal only */ + struct snd_soc_tplg_ctl_tlv *tlv; + struct snd_soc_tplg_private *data; + }; + + /* an element may refer to other elements: + * a mixer control may refer to a tlv, + * a widget may refer to a mixer control array, + * a graph may refer to some widgets. + */ + struct list_head ref_list; + struct list_head list; /* list of all elements with same type */ +}; + +struct map_elem { + const char *name; + int id; +}; + +int tplg_parse_compound(snd_tplg_t *tplg, snd_config_t *cfg, + int (*fcn)(snd_tplg_t *, snd_config_t *, void *), + void *private); + +int tplg_write_data(snd_tplg_t *tplg); + +int tplg_parse_tlv(snd_tplg_t *tplg, snd_config_t *cfg, + void *private ATTRIBUTE_UNUSED); + +int tplg_parse_text(snd_tplg_t *tplg, snd_config_t *cfg, + void *private ATTRIBUTE_UNUSED); + +int tplg_parse_data(snd_tplg_t *tplg, snd_config_t *cfg, + void *private ATTRIBUTE_UNUSED); + +int tplg_parse_control_bytes(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_control_enum(snd_tplg_t *tplg, snd_config_t *cfg, + void *private ATTRIBUTE_UNUSED); + +int tplg_parse_control_mixer(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_dapm_graph(snd_tplg_t *tplg, snd_config_t *cfg, + void *private ATTRIBUTE_UNUSED); + +int tplg_parse_dapm_widget(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_pcm_config(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_pcm_caps(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_pcm_cap_cfg(snd_tplg_t *tplg, snd_config_t *cfg, + void *private); + +int tplg_parse_pcm(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_be(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_parse_cc(snd_tplg_t *tplg, + snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); + +int tplg_build_controls(snd_tplg_t *tplg); +int tplg_build_widgets(snd_tplg_t *tplg); +int tplg_build_routes(snd_tplg_t *tplg); +int tplg_build_pcm_dai(snd_tplg_t *tplg, unsigned int type); + +int tplg_copy_data(struct tplg_elem *elem, struct tplg_elem *ref); + +int tplg_ref_add(struct tplg_elem *elem, int type, const char* id); + +struct tplg_elem *tplg_elem_new(void); +void tplg_elem_free(struct tplg_elem *elem); +void tplg_elem_free_list(struct list_head *base); +struct tplg_elem *tplg_elem_lookup(struct list_head *base, + const char* id, + unsigned int type); +struct tplg_elem* tplg_elem_new_common(snd_tplg_t *tplg, + snd_config_t *cfg, enum parser_type type); + +int tplg_parse_channel(snd_tplg_t *tplg ATTRIBUTE_UNUSED, + snd_config_t *cfg, void *private); + +int tplg_parse_ops(snd_tplg_t *tplg ATTRIBUTE_UNUSED, + snd_config_t *cfg, void *private); + +struct tplg_elem *lookup_pcm_dai_stream(struct list_head *base, + const char* id);