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https://github.com/alsa-project/alsa-utils
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90f5967178
Remove the call to snd_config_expand_custom() to expand the top-level input config. And replace it with calls to snd_config_evaluate_string() for each non-compound config while processing individual objects. This will allow retreving variable definitions from object attribute values and global definitions. Add a new field "current_obj_cfg" to hold the current object config being pre-processed. This will facilitate adding simple math expressions for computing attribute values for objects based on other attributes. For ex: we can set the expression for buffer size as follows: buffer_size "$[($in_channels * 48) * 4]" The buffer_size attribute value will be computed with the attribute value "in_channels" based on the expression above. So if $in_channels = 2, buffer_size will be evaluated to 384. Additionally this change also permits computing attribute values based on previously computed values. For example: buffer_size "$[($in_channels * 48) * 4]" dma_buffer_size "$[$buffer_size * 2]" dma_buffer_size will be computed as 768. Note that the order of definitions for buffer_size and dma_buffer_size matters because the evaluation for dma_buffer_size depends on the evaluation of buffer_size. In order to conform to this, the tplg_object_copy_and_add_param() is modified to add attribute configs from class config to an object using snd_config_before() instead of snd_config_add(). With this change, we no longer need to set the auto_attr_updater for buffer type widget objects. So remove it. Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
118 lines
5.2 KiB
C
118 lines
5.2 KiB
C
/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PRE_PROCESSOR_H
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#define __PRE_PROCESSOR_H
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#include <stdarg.h>
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#include <stdbool.h>
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#include <string.h>
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#include "topology.h"
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#define DEBUG_MAX_LENGTH 256
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#define ARRAY_SIZE(a) (sizeof (a) / sizeof (a)[0])
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#define MAX_CONFIGS_IN_TEMPLATE 32
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struct config_template_items {
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char *int_config_ids[MAX_CONFIGS_IN_TEMPLATE];
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char *string_config_ids[MAX_CONFIGS_IN_TEMPLATE];
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char *compound_config_ids[MAX_CONFIGS_IN_TEMPLATE];
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};
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typedef int (*build_func)(struct tplg_pre_processor *tplg_pp, snd_config_t *obj,
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snd_config_t *parent);
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typedef int (*update_auto_attr_func)(struct tplg_pre_processor *tplg_pp,
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snd_config_t *obj, snd_config_t *parent);
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struct build_function_map {
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char *class_type;
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char *class_name;
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char *section_name;
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build_func builder;
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update_auto_attr_func auto_attr_updater;
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const struct config_template_items *template_items;
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};
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extern const struct build_function_map object_build_map[];
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/* debug helpers */
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void tplg_pp_debug(char *fmt, ...);
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void tplg_pp_config_debug(struct tplg_pre_processor *tplg_pp, snd_config_t *cfg);
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/* object build helpers */
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int tplg_build_object_from_template(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t **wtop, snd_config_t *top_config,
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bool skip_name);
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int tplg_build_tlv_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_scale_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_ops_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_channel_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_mixer_control(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_bytes_control(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_dapm_route_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_hw_cfg_object(struct tplg_pre_processor *tplg_pp,
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snd_config_t *obj_cfg, snd_config_t *parent);
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int tplg_build_fe_dai_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent);
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int tplg_build_base_object(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *parent, bool skip_name);
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int tplg_build_pcm_caps_object(struct tplg_pre_processor *tplg_pp,
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snd_config_t *obj_cfg, snd_config_t *parent);
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int tplg_parent_update(struct tplg_pre_processor *tplg_pp, snd_config_t *parent,
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const char *section_name, const char *item_name);
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int tplg_add_object_data(struct tplg_pre_processor *tplg_pp, snd_config_t *obj_cfg,
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snd_config_t *top, const char *array_name);
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/* object helpers */
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int tplg_pre_process_objects(struct tplg_pre_processor *tplg_pp, snd_config_t *cfg,
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snd_config_t *parent);
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snd_config_t *tplg_object_get_instance_config(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class_type);
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const char *tplg_object_get_name(struct tplg_pre_processor *tplg_pp,
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snd_config_t *object);
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snd_config_t *tplg_object_get_section(struct tplg_pre_processor *tplg_pp, snd_config_t *class);
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/* class helpers */
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snd_config_t *tplg_class_lookup(struct tplg_pre_processor *tplg_pp, snd_config_t *cfg);
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snd_config_t *tplg_class_find_attribute_by_name(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class, const char *name);
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bool tplg_class_is_attribute_mandatory(const char *attr, snd_config_t *class_cfg);
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bool tplg_class_is_attribute_immutable(const char *attr, snd_config_t *class_cfg);
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bool tplg_class_is_attribute_unique(const char *attr, snd_config_t *class_cfg);
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const char *tplg_class_get_unique_attribute_name(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class);
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snd_config_type_t tplg_class_get_attribute_type(struct tplg_pre_processor *tplg_pp,
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snd_config_t *attr);
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const char *tplg_class_get_attribute_token_ref(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class, const char *attr_name);
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long tplg_class_attribute_valid_tuple_value(struct tplg_pre_processor *tplg_pp,
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snd_config_t *class, snd_config_t *attr);
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/* config helpers */
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snd_config_t *tplg_find_config(snd_config_t *config, const char *name);
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int tplg_config_make_add(snd_config_t **config, const char *id, snd_config_type_t type,
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snd_config_t *parent);
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char *tplg_snprintf(char *fmt, ...);
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#endif
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