From a3683a2ba04154ed5b06fdb9536f6c97b64ff71a Mon Sep 17 00:00:00 2001 From: Mengdong Lin Date: Fri, 15 Jul 2016 20:19:41 +0800 Subject: topology: Parse vendor private data for manifest In text conf file, user can define a manifest section and let it refer to private data sections, in the same syntax as other element types. The text conf file can have at most 1 manifest section. Signed-off-by: Mengdong Lin Reviewed-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- include/topology.h | 14 +++++++ src/topology/data.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++ src/topology/elem.c | 4 ++ src/topology/parser.c | 28 ++++++++++++- src/topology/tplg_local.h | 8 +++- 5 files changed, 153 insertions(+), 2 deletions(-) diff --git a/include/topology.h b/include/topology.h index 89bed6c4..644e5489 100644 --- a/include/topology.h +++ b/include/topology.h @@ -586,6 +586,20 @@ extern "C" { * } * * + *

Manifest Private Data

+ * Manfiest may have private data. Users need to define a manifest section + * and add the references to 1 or multiple data sections. Please refer to + * section 'How to define an element with private data'.
+ * And the text conf file can have at most 1 manifest section.

+ * + * Manifest section is defined as follows :- + * + * 
+ * SectionManifest"name" {
+ *
+ *	data "name"			# optional private data
+ * }
+ *
*/ /** Maximum number of channels supported in one control */ diff --git a/src/topology/data.c b/src/topology/data.c index a0c5ea26..245a8340 100644 --- a/src/topology/data.c +++ b/src/topology/data.c @@ -26,6 +26,10 @@ struct snd_soc_tplg_private *get_priv_data(struct tplg_elem *elem) struct snd_soc_tplg_private *priv = NULL; switch (elem->type) { + case SND_TPLG_TYPE_MANIFEST: + priv = &elem->manifest->priv; + break; + case SND_TPLG_TYPE_MIXER: priv = &elem->mixer_ctrl->priv; break; @@ -834,6 +838,103 @@ void tplg_free_tuples(void *obj) free(tuples->set); } +/* Parse manifest's data references + */ +int tplg_parse_manifest_data(snd_tplg_t *tplg, snd_config_t *cfg, + void *private ATTRIBUTE_UNUSED) +{ + struct snd_soc_tplg_manifest *manifest; + struct tplg_elem *elem; + snd_config_iterator_t i, next; + snd_config_t *n; + const char *id; + int err; + + if (!list_empty(&tplg->manifest_list)) { + SNDERR("error: already has manifest data\n"); + return -EINVAL; + } + + elem = tplg_elem_new_common(tplg, cfg, NULL, SND_TPLG_TYPE_MANIFEST); + if (!elem) + return -ENOMEM; + + manifest = elem->manifest; + manifest->size = elem->size; + + tplg_dbg(" Manifest: %s\n", elem->id); + + snd_config_for_each(i, next, cfg) { + n = snd_config_iterator_entry(i); + if (snd_config_get_id(n, &id) < 0) + continue; + + /* skip comments */ + if (strcmp(id, "comment") == 0) + continue; + if (id[0] == '#') + continue; + + + if (strcmp(id, "data") == 0) { + err = tplg_parse_data_refs(n, elem); + if (err < 0) + return err; + continue; + } + } + + return 0; +} + +/* merge private data of manifest */ +int tplg_build_manifest_data(snd_tplg_t *tplg) +{ + struct list_head *base, *pos; + struct tplg_elem *elem = NULL; + struct tplg_ref *ref; + struct snd_soc_tplg_manifest *manifest; + int err = 0; + + base = &tplg->manifest_list; + list_for_each(pos, base) { + + elem = list_entry(pos, struct tplg_elem, list); + break; + } + + if (!elem) /* no manifest data */ + return 0; + + base = &elem->ref_list; + + /* for each ref in this manifest elem */ + list_for_each(pos, base) { + + ref = list_entry(pos, struct tplg_ref, list); + if (ref->id == NULL || ref->elem) + continue; + + if (ref->type == SND_TPLG_TYPE_DATA) { + err = tplg_copy_data(tplg, elem, ref); + if (err < 0) + return err; + } + } + + manifest = elem->manifest; + if (!manifest->priv.size) /* no manifest data */ + return 0; + + tplg->manifest_pdata = malloc(manifest->priv.size); + if (!tplg->manifest_pdata) + return -ENOMEM; + + tplg->manifest.priv.size = manifest->priv.size; + memcpy(tplg->manifest_pdata, manifest->priv.data, manifest->priv.size); + return 0; +} + /* Parse Private data. * * Object private data can either be from file or defined as bytes, shorts, diff --git a/src/topology/elem.c b/src/topology/elem.c index 50414f0b..029c9abf 100644 --- a/src/topology/elem.c +++ b/src/topology/elem.c @@ -150,6 +150,10 @@ struct tplg_elem* tplg_elem_new_common(snd_tplg_t *tplg, case SND_TPLG_TYPE_DATA: list_add_tail(&elem->list, &tplg->pdata_list); break; + case SND_TPLG_TYPE_MANIFEST: + list_add_tail(&elem->list, &tplg->manifest_list); + obj_size = sizeof(struct snd_soc_tplg_manifest); + break; case SND_TPLG_TYPE_TEXT: list_add_tail(&elem->list, &tplg->text_list); break; diff --git a/src/topology/parser.c b/src/topology/parser.c index f6fc944e..3ab64f4f 100644 --- a/src/topology/parser.c +++ b/src/topology/parser.c @@ -189,6 +189,15 @@ static int tplg_parse_config(snd_tplg_t *tplg, snd_config_t *cfg) continue; } + if (strcmp(id, "SectionManifest") == 0) { + err = tplg_parse_compound(tplg, n, + tplg_parse_manifest_data, + NULL); + if (err < 0) + return err; + continue; + } + SNDERR("error: unknown section %s\n", id); } return 0; @@ -246,6 +255,10 @@ static int tplg_build_integ(snd_tplg_t *tplg) if (err < 0) return err; + err = tplg_build_manifest_data(tplg); + if (err < 0) + return err; + err = tplg_build_controls(tplg); if (err < 0) return err; @@ -374,8 +387,16 @@ out: int snd_tplg_set_manifest_data(snd_tplg_t *tplg, const void *data, int len) { + if (len <= 0) + return 0; + tplg->manifest.priv.size = len; - tplg->manifest_pdata = data; + + tplg->manifest_pdata = malloc(len); + if (!tplg->manifest_pdata) + return -ENOMEM; + + memcpy(tplg->manifest_pdata, data, len); return 0; } @@ -423,6 +444,7 @@ snd_tplg_t *snd_tplg_new(void) INIT_LIST_HEAD(&tplg->cc_list); INIT_LIST_HEAD(&tplg->route_list); INIT_LIST_HEAD(&tplg->pdata_list); + INIT_LIST_HEAD(&tplg->manifest_list); INIT_LIST_HEAD(&tplg->text_list); INIT_LIST_HEAD(&tplg->pcm_config_list); INIT_LIST_HEAD(&tplg->pcm_caps_list); @@ -437,6 +459,9 @@ snd_tplg_t *snd_tplg_new(void) void snd_tplg_free(snd_tplg_t *tplg) { + if (tplg->manifest_pdata) + free(tplg->manifest_pdata); + tplg_elem_free_list(&tplg->tlv_list); tplg_elem_free_list(&tplg->widget_list); tplg_elem_free_list(&tplg->pcm_list); @@ -444,6 +469,7 @@ void snd_tplg_free(snd_tplg_t *tplg) 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->manifest_list); tplg_elem_free_list(&tplg->text_list); tplg_elem_free_list(&tplg->pcm_config_list); tplg_elem_free_list(&tplg->pcm_caps_list); diff --git a/src/topology/tplg_local.h b/src/topology/tplg_local.h index 48db813d..4d79aa7b 100644 --- a/src/topology/tplg_local.h +++ b/src/topology/tplg_local.h @@ -58,7 +58,7 @@ struct snd_tplg { /* manifest */ struct snd_soc_tplg_manifest manifest; - const void *manifest_pdata; /* copied by builder at file write */ + void *manifest_pdata; /* copied by builder at file write */ /* list of each element type */ struct list_head tlv_list; @@ -71,6 +71,7 @@ struct snd_tplg { struct list_head pdata_list; struct list_head token_list; struct list_head tuple_list; + struct list_head manifest_list; struct list_head pcm_config_list; struct list_head pcm_caps_list; @@ -154,6 +155,7 @@ struct tplg_elem { struct snd_soc_tplg_private *data; struct tplg_vendor_tokens *tokens; struct tplg_vendor_tuples *tuples; + struct snd_soc_tplg_manifest *manifest; }; /* an element may refer to other elements: @@ -195,6 +197,9 @@ int tplg_parse_tuples(snd_tplg_t *tplg, snd_config_t *cfg, void tplg_free_tuples(void *obj); +int tplg_parse_manifest_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); @@ -223,6 +228,7 @@ int tplg_parse_cc(snd_tplg_t *tplg, snd_config_t *cfg, void *private ATTRIBUTE_UNUSED); int tplg_build_data(snd_tplg_t *tplg); +int tplg_build_manifest_data(snd_tplg_t *tplg); int tplg_build_controls(snd_tplg_t *tplg); int tplg_build_widgets(snd_tplg_t *tplg); int tplg_build_routes(snd_tplg_t *tplg); -- cgit v1.2.1