/* * 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 #include #include #include "local.h" #include "list.h" #include "topology.h" #include #include #include #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 TPLG_MAX_PRIV_SIZE (1024 * 128) #define ALSA_TPLG_DIR ALSA_CONFIG_DIR "/topology" /** The name of the environment variable containing the tplg directory */ #define ALSA_CONFIG_TPLG_VAR "ALSA_CONFIG_TPLG" struct tplg_ref; struct tplg_elem; 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; /* manifest */ struct snd_soc_tplg_manifest manifest; const void *manifest_pdata; /* copied by builder at file write */ /* 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 snd_tplg_type type; int size; /* total size of this object inc pdata and ref objects */ int compound_elem; /* dont write this element as individual elem */ int vendor_type; /* vendor type for private data */ /* 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 *pcm; struct snd_soc_tplg_link_config *be; struct snd_soc_tplg_link_config *cc; struct snd_soc_tplg_dapm_graph_elem *route; struct snd_soc_tplg_stream *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_caps(snd_tplg_t *tplg, snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); 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); int tplg_ref_add_elem(struct tplg_elem *elem, struct tplg_elem *elem_ref); 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, const char *name, enum snd_tplg_type type); static inline void elem_copy_text(char *dest, const char *src, int len) { strncpy(dest, src, len); dest[len - 1] = 0; } 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); int tplg_add_mixer_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t); int tplg_add_enum_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t); int tplg_add_bytes_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t); int tplg_add_widget_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t); int tplg_add_graph_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t); int tplg_add_mixer(snd_tplg_t *tplg, struct snd_tplg_mixer_template *mixer, struct tplg_elem **e); int tplg_add_enum(snd_tplg_t *tplg, struct snd_tplg_enum_template *enum_ctl, struct tplg_elem **e); int tplg_add_bytes(snd_tplg_t *tplg, struct snd_tplg_bytes_template *bytes_ctl, struct tplg_elem **e); int tplg_build_pcm(snd_tplg_t *tplg, unsigned int type); int tplg_build_link_cfg(snd_tplg_t *tplg, unsigned int type); int tplg_add_link_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t); int tplg_add_pcm_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t);