[alsa-devel] [PATCH v2 3/3] topology: A API calls to directly build topology data from templates
Liam Girdwood
liam.r.girdwood at linux.intel.com
Mon Aug 10 20:13:49 CEST 2015
From: Mengdong Lin <mengdong.lin at intel.com>
Add some new API calls so that applications can directly build topology data
using template structures.
Signed-off-by: Mengdong Lin <mengdong.lin at intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood at linux.intel.com>
---
include/topology.h | 26 +++++
src/topology/ctl.c | 291 ++++++++++++++++++++++++++++++++++++++++++++++
src/topology/dapm.c | 182 ++++++++++++++++++++++++++---
src/topology/elem.c | 17 +++
src/topology/parser.c | 57 +++++++++
src/topology/tplg_local.h | 11 ++
6 files changed, 570 insertions(+), 14 deletions(-)
diff --git a/include/topology.h b/include/topology.h
index aee43de..6ff8c5f 100644
--- a/include/topology.h
+++ b/include/topology.h
@@ -664,6 +664,32 @@ typedef struct snd_tplg_obj_template {
struct snd_tplg_graph_template *graph; /*!< Graph elements */
};
} snd_tplg_obj_template_t;
+
+/**
+ * \brief Register topology template object.
+ * \param tplg Topology instance.
+ * \param t Template object.
+ * \return Zero on success, otherwise a negative error code
+ */
+int snd_tplg_add_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t);
+
+/**
+ * \brief Build all registered topology data into binary file.
+ * \param tplg Topology instance.
+ * \param outfile Binary topology output file.
+ * \return Zero on success, otherwise a negative error code
+ */
+int snd_tplg_build(snd_tplg_t *tplg, const char *outfile);
+
+/**
+ * \brief Attach private data to topology manifest.
+ * \param tplg Topology instance.
+ * \param data Private data.
+ * \param len Length of data in bytes.
+ * \return Zero on success, otherwise a negative error code
+ */
+int snd_tplg_set_manifest_data(snd_tplg_t *tplg, const void *data, int len);
+
/* \} */
#ifdef __cplusplus
diff --git a/src/topology/ctl.c b/src/topology/ctl.c
index 35f684b..14027a3 100644
--- a/src/topology/ctl.c
+++ b/src/topology/ctl.c
@@ -19,6 +19,8 @@
#include "list.h"
#include "tplg_local.h"
+#define ENUM_VAL_SIZE (SNDRV_CTL_ELEM_ID_NAME_MAXLEN >> 2)
+
/* copy referenced TLV to the mixer control */
static int copy_tlv(struct tplg_elem *elem, struct tplg_elem *ref)
{
@@ -606,3 +608,292 @@ int tplg_parse_control_mixer(snd_tplg_t *tplg,
return 0;
}
+
+static int init_ctl_hdr(struct snd_soc_tplg_ctl_hdr *hdr,
+ struct snd_tplg_ctl_template *t)
+{
+ hdr->size = sizeof(struct snd_soc_tplg_ctl_hdr);
+ hdr->type = t->type;
+
+ elem_copy_text(hdr->name, t->name,
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+
+ /* clean up access flag */
+ if (t->access == 0)
+ t->access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+ t->access &= (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE |
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND |
+ SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK);
+
+ hdr->access = t->access;
+ hdr->ops.get = t->ops.get;
+ hdr->ops.put = t->ops.put;
+ hdr->ops.info = t->ops.info;
+
+ /* TLV */
+ if (hdr->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
+ && !(hdr->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
+
+ struct snd_tplg_tlv_template *tlvt = t->tlv;
+ struct snd_soc_tplg_ctl_tlv *tlv = &hdr->tlv;
+ struct snd_tplg_tlv_dbscale_template *scalet;
+ struct snd_soc_tplg_tlv_dbscale *scale;
+
+ if (!tlvt) {
+ SNDERR("error: missing TLV data\n");
+ return -EINVAL;
+ }
+
+ tlv->size = sizeof(struct snd_soc_tplg_ctl_tlv);
+ tlv->type = tlvt->type;
+
+ switch (tlvt->type) {
+ case SNDRV_CTL_TLVT_DB_SCALE:
+ scalet = container_of(tlvt,
+ struct snd_tplg_tlv_dbscale_template, hdr);
+ scale = &tlv->scale;
+ scale->min = scalet->min;
+ scale->step = scalet->step;
+ scale->mute = scalet->mute;
+ break;
+
+ /* TODO: add support for other TLV types */
+ default:
+ SNDERR("error: unsupported TLV type %d\n", tlv->type);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int tplg_add_mixer(snd_tplg_t *tplg, struct snd_tplg_mixer_template *mixer,
+ struct tplg_elem **e)
+{
+ struct snd_soc_tplg_private *priv = mixer->priv;
+ struct snd_soc_tplg_mixer_control *mc;
+ struct tplg_elem *elem;
+ int ret, i;
+
+ tplg_dbg(" Control Mixer: %s\n", mixer->hdr.name);
+
+ if (mixer->hdr.type != SND_SOC_TPLG_TYPE_MIXER) {
+ SNDERR("error: invalid mixer type %d\n", mixer->hdr.type);
+ return -EINVAL;
+ }
+
+ elem = tplg_elem_new_common(tplg, NULL, mixer->hdr.name,
+ SND_TPLG_TYPE_MIXER);
+ if (!elem)
+ return -ENOMEM;
+
+ /* init new mixer */
+ mc = elem->mixer_ctrl;
+ mc->size = elem->size;
+ ret = init_ctl_hdr(&mc->hdr, &mixer->hdr);
+ if (ret < 0) {
+ tplg_elem_free(elem);
+ return ret;
+ }
+
+ mc->min = mixer->min;
+ mc->max = mixer->max;
+ mc->platform_max = mixer->platform_max;
+ mc->invert = mixer->invert;
+
+ /* set channel reg to default state */
+ for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++)
+ mc->channel[i].reg = -1;
+
+ if (mixer->map)
+ mc->num_channels = mixer->map->num_channels;
+ for (i = 0; i < mc->num_channels; i++) {
+ struct snd_tplg_channel_elem *channel = &mixer->map->channel[i];
+
+ mc->channel[i].size = channel->size;
+ mc->channel[i].reg = channel->reg;
+ mc->channel[i].shift = channel->shift;
+ mc->channel[i].id = channel->id;
+ }
+
+ /* priv data */
+ if (priv) {
+ mc = realloc(mc, elem->size + priv->size);
+ if (!mc) {
+ tplg_elem_free(elem);
+ return -ENOMEM;
+ }
+
+ elem->mixer_ctrl = mc;
+ elem->size += priv->size;
+ mc->priv.size = priv->size;
+ memcpy(mc->priv.data, priv->data, priv->size);
+ }
+
+ if (e)
+ *e = elem;
+ return 0;
+}
+
+int tplg_add_enum(snd_tplg_t *tplg, struct snd_tplg_enum_template *enum_ctl,
+ struct tplg_elem **e)
+{
+ struct snd_soc_tplg_enum_control *ec;
+ struct tplg_elem *elem;
+ int ret, i;
+
+ tplg_dbg(" Control Enum: %s\n", enum_ctl->hdr.name);
+
+ if (enum_ctl->hdr.type != SND_SOC_TPLG_TYPE_ENUM) {
+ SNDERR("error: invalid enum type %d\n", enum_ctl->hdr.type);
+ return -EINVAL;
+ }
+
+ elem = tplg_elem_new_common(tplg, NULL, enum_ctl->hdr.name,
+ SND_TPLG_TYPE_ENUM);
+ if (!elem)
+ return -ENOMEM;
+
+ ec = elem->enum_ctrl;
+ ec->size = elem->size;
+ ret = init_ctl_hdr(&ec->hdr, &enum_ctl->hdr);
+ if (ret < 0) {
+ tplg_elem_free(elem);
+ return ret;
+ }
+
+ ec->items = enum_ctl->items;
+ if (ec->items > SND_SOC_TPLG_NUM_TEXTS)
+ ec->items = SND_SOC_TPLG_NUM_TEXTS;
+
+ ec->mask = enum_ctl->mask;
+ ec->count = enum_ctl->items;
+
+ if (enum_ctl->texts != NULL) {
+ for (i = 0; i < ec->items; i++) {
+ if (enum_ctl->texts[i] != NULL)
+ strncpy(ec->texts[i], enum_ctl->texts[i],
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+ }
+ }
+
+ if (enum_ctl->values != NULL) {
+ for (i = 0; i < ec->items; i++) {
+ if (enum_ctl->values[i])
+ continue;
+
+ memcpy(&ec->values[i * sizeof(int) * ENUM_VAL_SIZE],
+ enum_ctl->values[i],
+ sizeof(int) * ENUM_VAL_SIZE);
+ }
+ }
+
+ if (enum_ctl->priv != NULL) {
+ ec = realloc(ec,
+ elem->size + enum_ctl->priv->size);
+ if (!ec) {
+ tplg_elem_free(elem);
+ return -ENOMEM;
+ }
+
+ elem->enum_ctrl = ec;
+ elem->size += enum_ctl->priv->size;
+
+ memcpy(ec->priv.data, enum_ctl->priv->data,
+ enum_ctl->priv->size);
+
+ ec->priv.size = enum_ctl->priv->size;
+ }
+
+ if (e)
+ *e = elem;
+ return 0;
+}
+
+int tplg_add_bytes(snd_tplg_t *tplg, struct snd_tplg_bytes_template *bytes_ctl,
+ struct tplg_elem **e)
+{
+ struct snd_soc_tplg_bytes_control *be;
+ struct tplg_elem *elem;
+ int ret;
+
+ tplg_dbg(" Control Bytes: %s\n", bytes_ctl->hdr.name);
+
+ if (bytes_ctl->hdr.type != SND_SOC_TPLG_TYPE_BYTES) {
+ SNDERR("error: invalid bytes type %d\n", bytes_ctl->hdr.type);
+ return -EINVAL;
+ }
+
+ elem = tplg_elem_new_common(tplg, NULL, bytes_ctl->hdr.name,
+ SND_TPLG_TYPE_BYTES);
+ if (!elem)
+ return -ENOMEM;
+
+ be = elem->bytes_ext;
+ be->size = elem->size;
+ ret = init_ctl_hdr(&be->hdr, &bytes_ctl->hdr);
+ if (ret < 0) {
+ tplg_elem_free(elem);
+ return ret;
+ }
+
+ be->max = bytes_ctl->max;
+ be->mask = bytes_ctl->mask;
+ be->base = bytes_ctl->base;
+ be->num_regs = bytes_ctl->num_regs;
+ be->ext_ops.put = bytes_ctl->ext_ops.put;
+ be->ext_ops.get = bytes_ctl->ext_ops.get;
+
+ if (bytes_ctl->priv != NULL) {
+ be = realloc(be,
+ elem->size + bytes_ctl->priv->size);
+ if (!be) {
+ tplg_elem_free(elem);
+ return -ENOMEM;
+ }
+ elem->bytes_ext = be;
+ elem->size += bytes_ctl->priv->size;
+
+ memcpy(be->priv.data, bytes_ctl->priv->data,
+ bytes_ctl->priv->size);
+
+ be->priv.size = bytes_ctl->priv->size;
+ }
+
+ /* check on TLV bytes control */
+ if (be->hdr.access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+ if (be->hdr.access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
+ != SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE) {
+ SNDERR("error: Invalid TLV bytes control access 0x%x\n",
+ be->hdr.access);
+ return -EINVAL;
+ }
+
+ if (!be->max) {
+ tplg_elem_free(elem);
+ return -EINVAL;
+ }
+ }
+
+ if (e)
+ *e = elem;
+ return 0;
+}
+
+int tplg_add_mixer_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
+{
+ return tplg_add_mixer(tplg, t->mixer, NULL);
+}
+
+int tplg_add_enum_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
+{
+ return tplg_add_enum(tplg, t->enum_ctl, NULL);
+}
+
+int tplg_add_bytes_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
+{
+ return tplg_add_bytes(tplg, t->bytes_ctl, NULL);
+}
diff --git a/src/topology/dapm.c b/src/topology/dapm.c
index 3458aa7..5b3500f 100644
--- a/src/topology/dapm.c
+++ b/src/topology/dapm.c
@@ -142,8 +142,6 @@ static int tplg_build_widget(snd_tplg_t *tplg,
list_for_each(pos, base) {
ref = list_entry(pos, struct tplg_ref, list);
- if (ref->id == NULL || ref->elem)
- continue;
switch (ref->type) {
case SND_TPLG_TYPE_MIXER:
@@ -162,6 +160,14 @@ static int tplg_build_widget(snd_tplg_t *tplg,
err = copy_dapm_control(elem, ref->elem);
break;
+ case SND_TPLG_TYPE_BYTES:
+ if (!ref->elem)
+ ref->elem = tplg_elem_lookup(&tplg->bytes_ext_list,
+ ref->id, SND_TPLG_TYPE_BYTES);
+ if (ref->elem)
+ err = copy_dapm_control(elem, ref->elem);
+ break;
+
case SND_TPLG_TYPE_DATA:
if (!ref->elem)
ref->elem = tplg_elem_lookup(&tplg->pdata_list,
@@ -278,6 +284,28 @@ int tplg_build_routes(snd_tplg_t *tplg)
return 0;
}
+struct tplg_elem* tplg_elem_new_route(snd_tplg_t *tplg)
+{
+ struct tplg_elem *elem;
+ struct snd_soc_tplg_dapm_graph_elem *line;
+
+ elem = tplg_elem_new();
+ if (!elem)
+ return NULL;
+
+ list_add_tail(&elem->list, &tplg->route_list);
+ strcpy(elem->id, "line");
+ elem->type = SND_TPLG_TYPE_DAPM_GRAPH;
+ elem->size = sizeof(*line);
+
+ line = calloc(1, sizeof(*line));
+ if (!line)
+ return NULL;
+ elem->route = line;
+
+ return elem;
+}
+
#define LINE_SIZE 1024
/* line is defined as '"source, control, sink"' */
@@ -334,7 +362,7 @@ static int tplg_parse_routes(snd_tplg_t *tplg, snd_config_t *cfg)
snd_config_iterator_t i, next;
snd_config_t *n;
struct tplg_elem *elem;
- struct snd_soc_tplg_dapm_graph_elem *line = NULL;
+ struct snd_soc_tplg_dapm_graph_elem *line;
int err;
snd_config_for_each(i, next, cfg) {
@@ -344,20 +372,11 @@ static int tplg_parse_routes(snd_tplg_t *tplg, snd_config_t *cfg)
if (snd_config_get_string(n, &val) < 0)
continue;
- elem = tplg_elem_new();
+ elem = tplg_elem_new_route(tplg);
if (!elem)
return -ENOMEM;
- list_add_tail(&elem->list, &tplg->route_list);
- strcpy(elem->id, "line");
- elem->type = SND_TPLG_TYPE_DAPM_GRAPH;
- elem->size = sizeof(*line);
-
- line = calloc(1, sizeof(*line));
- if (!line)
- return -ENOMEM;
-
- elem->route = line;
+ line = elem->route;
err = tplg_parse_line(val, line);
if (err < 0)
@@ -558,3 +577,138 @@ int tplg_parse_dapm_widget(snd_tplg_t *tplg,
return 0;
}
+
+int tplg_add_route(snd_tplg_t *tplg, struct snd_tplg_graph_elem *t)
+{
+ struct tplg_elem *elem;
+ struct snd_soc_tplg_dapm_graph_elem *line;
+
+ if (!t->src || !t->sink)
+ return -EINVAL;
+
+ elem = tplg_elem_new_route(tplg);
+ if (!elem)
+ return -ENOMEM;
+
+ line = elem->route;
+ elem_copy_text(line->source, t->src, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+ if (t->ctl)
+ elem_copy_text(line->control, t->ctl,
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+ elem_copy_text(line->sink, t->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+
+ return 0;
+}
+
+int tplg_add_graph_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
+{
+ struct snd_tplg_graph_template *gt = t->graph;
+ int i, ret;
+
+ for (i = 0; i < gt->count; i++) {
+ ret = tplg_add_route(tplg, gt->elem + i);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+int tplg_add_widget_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
+{
+ struct snd_tplg_widget_template *wt = t->widget;
+ struct snd_soc_tplg_dapm_widget *w;
+ struct tplg_elem *elem;
+ int i, ret = 0;
+
+ tplg_dbg("Widget: %s\n", wt->name);
+
+ elem = tplg_elem_new_common(tplg, NULL, wt->name,
+ SND_TPLG_TYPE_DAPM_WIDGET);
+ if (!elem)
+ return -ENOMEM;
+
+ /* init new widget */
+ w = elem->widget;
+ w->size = elem->size;
+
+ w->id = wt->id;
+ elem_copy_text(w->name, wt->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+ if (wt->sname)
+ elem_copy_text(w->sname, wt->sname,
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+ w->reg = wt->reg;
+ w->shift = wt->shift;
+ w->mask = wt->mask;
+ w->subseq = wt->subseq;
+ w->invert = wt->invert;
+ w->ignore_suspend = wt->ignore_suspend;
+ w->event_flags = wt->event_flags;
+ w->event_type = wt->event_type;
+
+ if (wt->priv != NULL) {
+ w = realloc(w,
+ elem->size + wt->priv->size);
+ if (!w) {
+ tplg_elem_free(elem);
+ return -ENOMEM;
+ }
+
+ elem->widget = w;
+ elem->size += wt->priv->size;
+
+ memcpy(w->priv.data, wt->priv->data,
+ wt->priv->size);
+ w->priv.size = wt->priv->size;
+ }
+
+ /* add controls to the widget's reference list */
+ for (i = 0 ; i < wt->num_ctls; i++) {
+ struct snd_tplg_ctl_template *ct = wt->ctl[i];
+ struct tplg_elem *elem_ctl;
+ struct snd_tplg_mixer_template *mt;
+ struct snd_tplg_bytes_template *bt;
+ struct snd_tplg_enum_template *et;
+
+ if (!ct) {
+ tplg_elem_free(elem);
+ return -EINVAL;
+ }
+
+ switch (ct->type) {
+ case SND_SOC_TPLG_TYPE_MIXER:
+ mt = container_of(ct, struct snd_tplg_mixer_template, hdr);
+ ret = tplg_add_mixer(tplg, mt, &elem_ctl);
+ break;
+
+ case SND_SOC_TPLG_TYPE_BYTES:
+ bt = container_of(ct, struct snd_tplg_bytes_template, hdr);
+ ret = tplg_add_bytes(tplg, bt, &elem_ctl);
+ break;
+
+ case SND_SOC_TPLG_TYPE_ENUM:
+ et = container_of(ct, struct snd_tplg_enum_template, hdr);
+ ret = tplg_add_enum(tplg, bt, &elem_ctl);
+ break;
+
+ default:
+ SNDERR("error: widget %s: invalid type %d for ctl %d\n",
+ wt->name, ct->type, i);
+ ret = -EINVAL;
+ break;
+ }
+
+ if (ret < 0) {
+ tplg_elem_free(elem);
+ return ret;
+ }
+
+ ret = tplg_ref_add_elem(elem, elem_ctl);
+ if (ret < 0) {
+ tplg_elem_free(elem);
+ return ret;
+ }
+ }
+
+ return 0;
+}
diff --git a/src/topology/elem.c b/src/topology/elem.c
index daabe75..d784236 100644
--- a/src/topology/elem.c
+++ b/src/topology/elem.c
@@ -35,6 +35,23 @@ int tplg_ref_add(struct tplg_elem *elem, int type, const char* id)
return 0;
}
+/* directly add a reference elem */
+int tplg_ref_add_elem(struct tplg_elem *elem, struct tplg_elem *elem_ref)
+{
+ struct tplg_ref *ref;
+
+ ref = calloc(1, sizeof(*ref));
+ if (!ref)
+ return -ENOMEM;
+
+ ref->type = elem_ref->type;
+ ref->elem = elem_ref;
+ elem_copy_text(ref->id, elem_ref->id, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
+
+ list_add_tail(&ref->list, &elem->ref_list);
+ return 0;
+}
+
void tplg_ref_free_list(struct list_head *base)
{
struct list_head *pos, *npos;
diff --git a/src/topology/parser.c b/src/topology/parser.c
index 3e3e2b3..497eb42 100644
--- a/src/topology/parser.c
+++ b/src/topology/parser.c
@@ -309,6 +309,63 @@ out_close:
return err;
}
+int snd_tplg_add_object(snd_tplg_t *tplg, snd_tplg_obj_template_t *t)
+{
+ switch (t->type) {
+ case SND_TPLG_TYPE_MIXER:
+ return tplg_add_mixer_object(tplg, t);
+ case SND_TPLG_TYPE_ENUM:
+ return tplg_add_enum_object(tplg, t);
+ case SND_TPLG_TYPE_BYTES:
+ return tplg_add_bytes_object(tplg, t);
+ case SND_TPLG_TYPE_DAPM_WIDGET:
+ return tplg_add_widget_object(tplg, t);
+ case SND_TPLG_TYPE_DAPM_GRAPH:
+ return tplg_add_graph_object(tplg, t);
+ default:
+ SNDERR("error: invalid object type %d\n", t->type);
+ return -EINVAL;
+ };
+}
+
+int snd_tplg_build(snd_tplg_t *tplg, const char *outfile)
+{
+ int err;
+
+ /* 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_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:
+ close(tplg->out_fd);
+ return err;
+}
+
+int snd_tplg_set_manifest_data(snd_tplg_t *tplg, const void *data, int len)
+{
+ tplg->manifest.priv.size = len;
+ tplg->manifest_pdata = data;
+}
+
void snd_tplg_verbose(snd_tplg_t *tplg, int verbose)
{
tplg->verbose = verbose;
diff --git a/src/topology/tplg_local.h b/src/topology/tplg_local.h
index 953d822..97ee33e 100644
--- a/src/topology/tplg_local.h
+++ b/src/topology/tplg_local.h
@@ -34,6 +34,10 @@
#define ALSA_TPLG_DIR ALSA_CONFIG_DIR "/topology"
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+#define container_of(ptr, type, member) ({ \
+ const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+ (type *)( (char *)__mptr - offsetof(type,member) );})
+
/** The name of the environment variable containing the tplg directory */
#define ALSA_CONFIG_TPLG_VAR "ALSA_CONFIG_TPLG"
@@ -191,6 +195,7 @@ 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);
@@ -215,3 +220,9 @@ int tplg_parse_ops(snd_tplg_t *tplg ATTRIBUTE_UNUSED,
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);
--
2.1.4
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