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+/*
+ *
+ * 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
+ * \{
+ */
+
+/*! \page topology ALSA Topology Interface
+ *
+ * The topology interface allows developers to define DSP topologies in a text
+ * file format and to convert the text topology to a binary topology
+ * representation that can be understood by the kernel. The topology core
+ * currently recognises the following object types :-
+ *
+ * * Controls (mixer, enumerated and byte) including TLV data.
+ * * PCMs (FE and BE configurations and capabilities)
+ * * DAPM widgets
+ * * DAPM graph elements.
+ * * Private data for each object type.
+ * * Manifest (containing count of each object type)
+ *
+ * <h3>Topology File Format</h3>
+ *
+ * The topology text format uses the standard ALSA configuration file format to
+ * describe each topology object type. This allows topology objects to include
+ * other topology objects as part of thier definition. i.e. a TLV data object
+ * can be shared amongst many control objects that use the same TLV data.
+ *
+ *
+ * <h4>Controls</h4>
+ * Topology audio controls can belong to three different types :-
+ * * Mixer control
+ * * Enumerated control
+ * * Byte control
+ *
+ * Each control type can contain TLV data, private data, operations and also
+ * belong to widget objects.<br>
+ *
+ * <h5>Control Operations</h5>
+ * Driver Kcontrol callback info(), get() and put() operations are mapped with
+ * the CTL ops section in topology configuration files. The ctl ops section can
+ * assign operations using the standard names (listed below) for the standard
+ * kcontrol types or use ID numbers (>256) to map to bespoke driver controls.<br>
+ *
+ * <pre>
+ *
+ * ops."ctl" {
+ * info "volsw"
+ * get "257"
+ * put "257"
+ * }
+ *
+ * </pre>
+ *
+ * This mapping shows info() using the standard "volsw" info callback whilst
+ * the get() and put() are mapped to bespoke driver callbacks. <br>
+ *
+ * The Standard operations names for control get(), put() and info calls
+ * are :-
+ * * volsw
+ * * volsw_sx
+ * * volsw_xr_sx
+ * * enum
+ * * bytes
+ * * enum_value
+ * * range
+ * * strobe
+ *
+ * <h5>Control TLV Data</h5>
+ * Controls can also use TLV data to represent dB information. This can be done
+ * by defining a TLV section and using the TLV section within the control.
+ * The TLV data for DBScale types are defined as follows :-
+ *
+ * <pre>
+ * scale {
+ * min "-9000"
+ * step "300"
+ * mute "1"
+ * }
+ * </pre>
+ *
+ * Where the meanings and values for min, step and mute are exactly the same
+ * as defined in driver code.
+ *
+ * <h5>Control Channel Mapping</h5>
+ * Controls can also specify which channels they are mapped with. This is useful
+ * for userspace as it allows applications to determine the correct control
+ * channel for Left and Right etc. Channel maps are defined as follows :-
+ *
+ * <pre>
+ * channel."name" {
+ * reg "0"
+ * shift "0"
+ * }
+ * </pre>
+ *
+ * The channel map reg is the register offset for the control, shift is the
+ * bit shift within the register for the channel and the section name is the
+ * channel name and can be one of the following :-
+ *
+ * <pre>
+ * * mono # mono stream
+ * * fl # front left
+ * * fr # front right
+ * * rl # rear left
+ * * rr # rear right
+ * * fc # front center
+ * * lfe # LFE
+ * * sl # side left
+ * * sr # side right
+ * * rc # rear center
+ * * flc # front left center
+ * * frc # front right center
+ * * rlc # rear left center
+ * * rrc # rear right center
+ * * flw # front left wide
+ * * frw # front right wide
+ * * flh # front left high
+ * * fch # front center high
+ * * frh # front right high
+ * * tc # top center
+ * * tfl # top front left
+ * * tfr # top front right
+ * * tfc # top front center
+ * * trl # top rear left
+ * * trr # top rear right
+ * * trc # top rear center
+ * * tflc # top front left center
+ * * tfrc # top front right center
+ * * tsl # top side left
+ * * tsr # top side right
+ * * llfe # left LFE
+ * * rlfe # right LFE
+ * * bc # bottom center
+ * * blc # bottom left center
+ * * brc # bottom right center
+ * </pre>
+ *
+ * <h5>Control Private Data</h5>
+ * Controls can also have private data. This can be done by defining a private
+ * data section and including the section within the control. The private data
+ * section is defined as follows :-
+ *
+ * <pre>
+ * SectionData."pdata for EQU1" {
+ * file "/path/to/file"
+ * bytes "0x12,0x34,0x56,0x78"
+ * shorts "0x1122,0x3344,0x5566,0x7788"
+ * words "0xaabbccdd,0x11223344,0x66aa77bb,0xefef1234"
+ * };
+ * </pre>
+ * The file, bytes, shorts and words keywords are all mutulally exclusive as
+ * the private data should only be taken from one source. The private data can
+ * either be read from a separate file or defined in the topology file using
+ * the bytes, shorts or words keywords.
+ *
+ * <h5>Mixer Controls</h5>
+ * A mixer control is defined as a new section that can include channel mapping,
+ * TLV data, callback operations and private data. The mixer section also
+ * includes a few other config options that are shown here :-
+ *
+ * <pre>
+ * SectionControlMixer."mixer name" {
+ * comment "optional comments"
+ *
+ * index "1" # Index number
+ *
+ * channel."name" { # Channel maps
+ * ....
+ * }
+ *
+ * ops."ctl" { # Ops callback functions
+ * ....
+ * }
+ *
+ * max "32" # Max control value
+ * invert "0" # Whether control values are inverted
+ *
+ * tlv "tld_data" # optional TLV data
+ *
+ * data "pdata for mixer1" # optional private data
+ * }
+ * </pre>
+ *
+ * The section name is used to define the mixer name. The index number can be
+ * used to identify topology objects groups. This allows driver operations on
+ * objects with index number N and can be used to add/remove pipelines of
+ * objects whilst other objects are unaffected.
+ *
+ * <h5>Byte Controls</h5>
+ * A byte control is defined as a new section that can include channel mapping,
+ * TLV data, callback operations and private data. The bytes section also
+ * includes a few other config options that are shown here :-
+ *
+ * <pre>
+ * SectionControlBytes."name" {
+ * comment "optional comments"
+ *
+ * index "1" # Index number
+ *
+ * channel."name" { # Channel maps
+ * ....
+ * }
+ *
+ * ops."ctl" { # Ops callback functions
+ * ....
+ * }
+ *
+ * base "0" # Register base
+ * num_regs "16" # Number of registers
+ * mask "0xff" # Mask
+ * max "255" # Maximum value
+ *
+ * tlv "tld_data" # optional TLV data
+ *
+ * data "pdata for mixer1" # optional private data
+ * }
+ * </pre>
+ *
+ * <h5>Enumerated Controls</h5>
+ * A enumerated control is defined as a new section (like mixer and byte) that
+ * can include channel mapping, callback operations, private data and
+ * text strings to represent the enumerated control options.<br>
+ *
+ * The text strings for the enumerated controls are defined in a seperate
+ * section as follows :-
+ *
+ * <pre>
+ * SectionText."name" {
+ *
+ * Values [
+ * "value1"
+ * "value2"
+ "value3"
+ * ]
+ * }
+ * </pre>
+ *
+ * All the enumerated text values are listed in the values list.<br>
+ * The enumerated control is similar to the other controls and defined as
+ * follows :-
+ *
+ * <pre>
+ * SectionControlMixer."name" {
+ * comment "optional comments"
+ *
+ * index "1" # Index number
+ *
+ * texts "EQU1" # Enumerated text items
+ *
+ * channel."name" { # Channel maps
+ * ....
+ * }
+ *
+ * ops."ctl" { # Ops callback functions
+ * ....
+ * }
+ *
+ * data "pdata for mixer1" # optional private data
+ * }
+ * </pre>
+ *
+ * <h4>DAPM Graph</h4>
+ * DAPM graphs can easily be defined using the topology file. The format is
+ * very similar to the DAPM graph kernel format. :-
+ *
+ * <pre>
+ * SectionGraph."dsp" {
+ * index "1" # Index number
+ *
+ * lines [
+ * "sink1, control, source1"
+ * "sink2, , source2"
+ * ]
+ * }
+ * </pre>
+ *
+ * The lines in the graph are defined as a variable size list of sinks,
+ * controls and sources. The control name is optional as some graph lines have
+ * no associated controls. The section name can be used to differentiate the
+ * graph with other graphs, it's not used by the kernel atm.
+ *
+ * <h4>DAPM Widgets</h4>
+ * DAPM wigets are similar to controls in that they can include many other
+ * objects. Widgets can contain private data, mixer controls and enum controls.
+ *
+ * The following widget types are supported and match the driver types :-
+ *
+ * * input
+ * * output
+ * * mux
+ * * mixer
+ * * pga
+ * * out_drv
+ * * adc
+ * * dac
+ * * switch
+ * * pre
+ * * post
+ * * aif_in
+ * * aif_out
+ * * dai_in
+ * * dai_out
+ * * dai_link
+ *
+ * Widgets are defined as follows :-
+ *
+ * <pre>
+ * SectionWidget."name" {
+ *
+ * index "1" # Index number
+ *
+ * type "aif_in" # Widget type - detailed above
+ *
+ * no_pm "true" # No PM control bit.
+ * reg "20" # PM bit register offset
+ * shift "0" # PM bit register shift
+ * invert "1 # PM bit is inverted
+ * subseq "8" # subsequence number
+ *
+ * event_type "1" # DAPM widget event type
+ * event_flags "1" # DAPM widget event flags
+ *
+ * mixer "name" # Optional Mixer Control
+ * enum "name" # Optional Enum Control
+ *
+ * data "name" # optional private data
+ * }
+ * </pre>
+ *
+ * The section name is the widget name. The mixer and enum fields are mutually
+ * exclusive and used to include controls into the widget. The index and data
+ * fields are the same for widgets as they are for controls whilst the other
+ * fields map on very closely to the driver widget fields.
+ *
+ * <h4>PCM Capabilities</h4>
+ * Topology can also define the capabilities of FE and BE PCMs. Capabilities
+ * can be defined with the following section :-
+ *
+ * <pre>
+ * SectionPCMCapabilities."name" {
+ *
+ * formats "S24_LE,S16_LE" # Supported formats
+ * rate_min "48000" # Max supported sample rate
+ * rate_max "48000" # Min suppoprted sample rate
+ * channels_min "2" # Min number of channels
+ * channels_max "2" # max number of channels
+ * }
+ * </pre>
+ * The supported formats use the same naming convention as the driver macros.
+ * The PCM capabilities name can be reffered to and included by BE, PCM and
+ * Codec <-> codec topology sections.
+ *
+ * <h4>PCM Configurations</h4>
+ * PCM runtime configurations can be defined for playback and capture stream
+ * directions with the following section :-
+ *
+ * <pre>
+ * SectionPCMConfig."name" {
+ *
+ * config."playback" { # playback config
+ * format "S16_LE" # playback format
+ * rate "48000" # playback sample rate
+ * channels "2" # playback channels
+ * tdm_slot "0xf" # playback TDM slot
+ * }
+ *
+ * config."capture" { # capture config
+ * format "S16_LE" # capture format
+ * rate "48000" # capture sample rate
+ * channels "2" # capture channels
+ * tdm_slot "0xf" # capture TDM slot
+ * }
+ * }
+ * </pre>
+ *
+ * The supported formats use the same naming convention as the driver macros.
+ * The PCM configuration name can be reffered to and included by BE, PCM and
+ * Codec <-> codec topology sections.
+ *
+ * <h4>PCM Configurations</h4>
+ * PCM, BE and Codec to Codec link sections define the supported capabilities
+ * and configurations for supported playback and capture streams. The
+ * definitions and content for PCMs, BE and Codec links are the same with the
+ * exception of the section type :-
+ *
+ * <pre>
+ * SectionPCM."name" {
+ * ....
+ * }
+ * SectionBE."name" {
+ * ....
+ * }
+ * SectionCC."name" {
+ * ....
+ * }
+ * </pre>
+ *
+ * The section types above should be used for PCMs, Back Ends and Codec to Codec
+ * links respectively.<br>
+ *
+ * The data for each section is defined as follows :-
+ *
+ * <pre>
+ * SectionPCM."name" {
+ *
+ * index "1" # Index number
+ *
+ * id "0" # used for binding to the PCM
+ *
+ * pcm."playback" {
+ * capabilities "capabilities1" # capbilities for playback
+ *
+ * configs [ # supported configs for playback
+ * "config1"
+ * "config2"
+ * ]
+ * }
+ *
+ * pcm."capture" {
+ * capabilities "capabilities2" # capabilities for capture
+ *
+ * configs [ # supported configs for capture
+ * "config1"
+ * "config2"
+ * "config3"
+ * ]
+ * }
+ * }
+ * </pre>
+ *
+ */
+
+/** Topology context */
+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_file(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 level if non zero
+ */
+void snd_tplg_verbose(snd_tplg_t *tplg, int verbose);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ALSA_TOPOLOGY_H */
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+/*
+ 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->id[SNDRV_CTL_ELEM_ID_NAME_MAXLEN - 1] = 0;
+ 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;
+ struct tplg_elem *elem;
+
+ list_for_each(pos, 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 object_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);
+ elem->id[SNDRV_CTL_ELEM_ID_NAME_MAXLEN - 1] = 0;
+
+ switch (type) {
+ case OBJECT_TYPE_DATA:
+ list_add_tail(&elem->list, &tplg->pdata_list);
+ break;
+ case OBJECT_TYPE_TEXT:
+ list_add_tail(&elem->list, &tplg->text_list);
+ break;
+ case OBJECT_TYPE_TLV:
+ list_add_tail(&elem->list, &tplg->tlv_list);
+ elem->size = sizeof(struct snd_soc_tplg_ctl_tlv);
+ break;
+ case OBJECT_TYPE_BYTES:
+ list_add_tail(&elem->list, &tplg->bytes_ext_list);
+ obj_size = sizeof(struct snd_soc_tplg_bytes_control);
+ break;
+ case OBJECT_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 OBJECT_TYPE_DAPM_WIDGET:
+ list_add_tail(&elem->list, &tplg->widget_list);
+ obj_size = sizeof(struct snd_soc_tplg_dapm_widget);
+ break;
+ case OBJECT_TYPE_STREAM_CONFIG:
+ list_add_tail(&elem->list, &tplg->pcm_config_list);
+ obj_size = sizeof(struct snd_soc_tplg_stream_config);
+ break;
+ case OBJECT_TYPE_STREAM_CAPS:
+ list_add_tail(&elem->list, &tplg->pcm_caps_list);
+ obj_size = sizeof(struct snd_soc_tplg_stream_caps);
+ break;
+ case OBJECT_TYPE_PCM:
+ list_add_tail(&elem->list, &tplg->pcm_list);
+ obj_size = sizeof(struct snd_soc_tplg_pcm_dai);
+ break;
+ case OBJECT_TYPE_BE:
+ list_add_tail(&elem->list, &tplg->be_list);
+ obj_size = sizeof(struct snd_soc_tplg_pcm_dai);
+ break;
+ case OBJECT_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;
+}
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+/*
+ 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) {
+ SNDERR("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) {
+ SNDERR("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) {
+ SNDERR("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;
+ }
+
+ SNDERR("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) {
+ SNDERR("error: could not open configuration file %s",
+ file);
+ return -errno;
+ }
+
+ ret = snd_input_stdio_attach(&in, fp, 1);
+ if (ret < 0) {
+ SNDERR("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) {
+ SNDERR("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, OBJECT_TYPE_PCM);
+ if (err < 0)
+ return err;
+
+ err = tplg_build_pcm_dai(tplg, OBJECT_TYPE_BE);
+ if (err < 0)
+ return err;
+
+ err = tplg_build_pcm_dai(tplg, OBJECT_TYPE_CC);
+ if (err < 0)
+ return err;
+
+ err = tplg_build_routes(tplg);
+ if (err < 0)
+ return err;
+
+ return err;
+}
+
+int snd_tplg_build_file(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) {
+ SNDERR("error: failed to open %s err %d\n",
+ outfile, -errno);
+ return -errno;
+ }
+
+ err = tplg_load_config(infile, &cfg);
+ if (err < 0) {
+ SNDERR("error: failed to load topology file %s\n",
+ infile);
+ goto out_close;
+ }
+
+ err = tplg_parse_config(tplg, cfg);
+ if (err < 0) {
+ SNDERR("error: failed to parse topology\n");
+ goto out;
+ }
+
+ err = tplg_build_integ(tplg);
+ if (err < 0) {
+ SNDERR("error: failed to check topology integrity\n");
+ goto out;
+ }
+
+ err = tplg_write_data(tplg);
+ if (err < 0) {
+ SNDERR("error: failed to write data %d\n", err);
+ goto out;
+ }
+
+out:
+ snd_config_delete(cfg);
+out_close:
+ 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);
+}
new file mode 100644
@@ -0,0 +1,234 @@
+/*
+ * 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 TPLG_MAX_PRIV_SIZE (1024 * 128)
+#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 object_type {
+ OBJECT_TYPE_TLV = 0,
+ OBJECT_TYPE_MIXER,
+ OBJECT_TYPE_ENUM,
+ OBJECT_TYPE_TEXT,
+ OBJECT_TYPE_DATA,
+ OBJECT_TYPE_BYTES,
+ OBJECT_TYPE_STREAM_CONFIG,
+ OBJECT_TYPE_STREAM_CAPS,
+ OBJECT_TYPE_PCM,
+ OBJECT_TYPE_DAPM_WIDGET,
+ OBJECT_TYPE_DAPM_GRAPH,
+ OBJECT_TYPE_BE,
+ OBJECT_TYPE_CC,
+ OBJECT_TYPE_MANIFEST,
+};
+
+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;
+
+ /* 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 object_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_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 object_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);
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 | 497 ++++++++++++++++++++++++++++++++++++++++++++++ src/topology/elem.c | 187 +++++++++++++++++ src/topology/parser.c | 359 +++++++++++++++++++++++++++++++++ src/topology/tplg_local.h | 234 ++++++++++++++++++++++ 4 files changed, 1277 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