29 Jun
2015
29 Jun
'15
8:43 p.m.
At Mon, 29 Jun 2015 17:32:53 +0100, Liam Girdwood wrote:
Parse DAPM objects including widgets and graph elements.
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com
src/topology/dapm.c | 560 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 560 insertions(+) create mode 100644 src/topology/dapm.c
diff --git a/src/topology/dapm.c b/src/topology/dapm.c new file mode 100644 index 0000000..fafe3cb --- /dev/null +++ b/src/topology/dapm.c @@ -0,0 +1,560 @@ +/*
- 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"
+/* mapping of widget text names to types */ +static const struct map_elem widget_map[] = {
- {"input", SND_SOC_TPLG_DAPM_INPUT},
- {"output", SND_SOC_TPLG_DAPM_OUTPUT},
- {"mux", SND_SOC_TPLG_DAPM_MUX},
- {"mixer", SND_SOC_TPLG_DAPM_MIXER},
- {"pga", SND_SOC_TPLG_DAPM_PGA},
- {"out_drv", SND_SOC_TPLG_DAPM_OUT_DRV},
- {"adc", SND_SOC_TPLG_DAPM_ADC},
- {"dac", SND_SOC_TPLG_DAPM_DAC},
- {"switch", SND_SOC_TPLG_DAPM_SWITCH},
- {"pre", SND_SOC_TPLG_DAPM_PRE},
- {"post", SND_SOC_TPLG_DAPM_POST},
- {"aif_in", SND_SOC_TPLG_DAPM_AIF_IN},
- {"aif_out", SND_SOC_TPLG_DAPM_AIF_OUT},
- {"dai_in", SND_SOC_TPLG_DAPM_DAI_IN},
- {"dai_out", SND_SOC_TPLG_DAPM_DAI_OUT},
- {"dai_link", SND_SOC_TPLG_DAPM_DAI_LINK},
+};
+/* mapping of widget kcontrol text names to types */ +static const struct map_elem widget_control_map[] = {
- {"volsw", SND_SOC_TPLG_DAPM_CTL_VOLSW},
- {"enum_double", SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE},
- {"enum_virt", SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT},
- {"enum_value", SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE},
+};
+static int lookup_widget(const char *w) +{
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE(widget_map); i++) {
if (strcmp(widget_map[i].name, w) == 0)return widget_map[i].id;- }
- return -EINVAL;
+}
+static int tplg_parse_dapm_mixers(snd_config_t *cfg, struct tplg_elem *elem) +{
- snd_config_iterator_t i, next;
- snd_config_t *n;
- const char *value = NULL;
- tplg_dbg(" DAPM Mixer Controls: %s\n", elem->id);
- snd_config_for_each(i, next, cfg) {
n = snd_config_iterator_entry(i);/* get value */if (snd_config_get_string(n, &value) < 0)continue;tplg_ref_add(elem, PARSER_TYPE_MIXER, value);tplg_dbg("\t\t %s\n", value);- }
- return 0;
+}
+static int tplg_parse_dapm_enums(snd_config_t *cfg, struct tplg_elem *elem) +{
- snd_config_iterator_t i, next;
- snd_config_t *n;
- const char *value = NULL;
- tplg_dbg(" DAPM Enum Controls: %s\n", elem->id);
- snd_config_for_each(i, next, cfg) {
n = snd_config_iterator_entry(i);/* get value */if (snd_config_get_string(n, &value) < 0)continue;tplg_ref_add(elem, PARSER_TYPE_ENUM, value);tplg_dbg("\t\t %s\n", value);- }
- return 0;
+}
+/* move referenced controls to the widget */ +static int copy_dapm_control(struct tplg_elem *elem, struct tplg_elem *ref) +{
- struct snd_soc_tplg_dapm_widget *widget = elem->widget;
- struct snd_soc_tplg_mixer_control *mixer_ctrl = ref->mixer_ctrl;
- struct snd_soc_tplg_enum_control *enum_ctrl = ref->enum_ctrl;
- tplg_dbg("Control '%s' used by '%s'\n", ref->id, elem->id);
- tplg_dbg("\tparent size: %d + %d -> %d, priv size -> %d\n",
elem->size, ref->size, elem->size + ref->size,widget->priv.size);- widget = realloc(widget, elem->size + ref->size);
- if (!widget)
return -ENOMEM;- elem->widget = widget;
- /* copy new widget at the end */
- if (ref->type == PARSER_TYPE_MIXER)
memcpy((void*)widget + elem->size, mixer_ctrl, ref->size);- else if (ref->type == PARSER_TYPE_ENUM)
memcpy((void*)widget + elem->size, enum_ctrl, ref->size);- elem->size += ref->size;
- widget->num_kcontrols++;
- ref->compound_elem = 1;
- return 0;
+}
+/* check referenced controls for a widget */ +static int tplg_build_widget(snd_tplg_t *tplg,
- struct tplg_elem *elem)
+{
- struct tplg_ref *ref;
- struct list_head *base, *pos, *npos;
- int err = 0;
- base = &elem->ref_list;
- /* for each ref in this control elem */
- list_for_each_safe(pos, npos, base) {
ref = list_entry(pos, struct tplg_ref, list);if (ref->id == NULL || ref->elem)continue;switch (ref->type) {case PARSER_TYPE_MIXER:ref->elem = tplg_elem_lookup(&tplg->mixer_list,ref->id, PARSER_TYPE_MIXER);if (ref->elem)err = copy_dapm_control(elem, ref->elem);break;case PARSER_TYPE_ENUM:ref->elem = tplg_elem_lookup(&tplg->enum_list,ref->id, PARSER_TYPE_ENUM);if (ref->elem)err = copy_dapm_control(elem, ref->elem);break;case PARSER_TYPE_DATA:ref->elem = tplg_elem_lookup(&tplg->pdata_list,ref->id, PARSER_TYPE_DATA);if (ref->elem)err = tplg_copy_data(elem, ref->elem);break;default:break;}if (!ref->elem) {fprintf(stderr, "error: cannot find control '%s'"" referenced by widget '%s'\n",ref->id, elem->id);return -EINVAL;}if (err < 0)return err;- }
- return 0;
+}
+int tplg_build_widgets(snd_tplg_t *tplg) +{
- struct list_head *base, *pos, *npos;
- struct tplg_elem *elem;
- int err;
- base = &tplg->widget_list;
- list_for_each_safe(pos, npos, base) {
elem = list_entry(pos, struct tplg_elem, list);if (!elem->widget || elem->type != PARSER_TYPE_DAPM_WIDGET) {fprintf(stderr, "error: invalid widget '%s'\n",elem->id);return -EINVAL;}err = tplg_build_widget(tplg, elem);if (err < 0)return err;- }
- return 0;
+}
+int tplg_build_routes(snd_tplg_t *tplg) +{
- struct list_head *base, *pos, *npos;
- struct tplg_elem *elem;
- struct snd_soc_tplg_dapm_graph_elem *route;
- base = &tplg->route_list;
- list_for_each_safe(pos, npos, base) {
elem = list_entry(pos, struct tplg_elem, list);if (!elem->route || elem->type != PARSER_TYPE_DAPM_GRAPH) {fprintf(stderr, "error: invalid route '%s'\n",elem->id);return -EINVAL;}route = elem->route;tplg_dbg("\nCheck route: sink '%s', control '%s', source '%s'\n",route->sink, route->control, route->source);/* validate sink */if (strlen(route->sink) <= 0) {fprintf(stderr, "error: no sink\n");return -EINVAL;}if (!tplg_elem_lookup(&tplg->widget_list, route->sink,PARSER_TYPE_DAPM_WIDGET)) {fprintf(stderr, "warning: undefined sink widget/stream '%s'\n",route->sink);}/* validate control name */if (strlen(route->control)) {if (!tplg_elem_lookup(&tplg->mixer_list,route->control, PARSER_TYPE_MIXER) &&!tplg_elem_lookup(&tplg->enum_list,route->control, PARSER_TYPE_ENUM)) {fprintf(stderr, "warning: Undefined mixer/enum control '%s'\n",route->control);}}/* validate source */if (strlen(route->source) <= 0) {fprintf(stderr, "error: no source\n");return -EINVAL;}if (!tplg_elem_lookup(&tplg->widget_list, route->source,PARSER_TYPE_DAPM_WIDGET)) {fprintf(stderr, "warning: Undefined source widget/stream '%s'\n",route->source);}- }
- return 0;
+}
+#define LINE_SIZE 1024
+/* line is defined as '"source, control, sink"' */ +static int tplg_parse_line(const char *text,
- struct snd_soc_tplg_dapm_graph_elem *line)
+{
- char buf[LINE_SIZE];
- unsigned int len, i;
- const char *source = NULL, *sink = NULL, *control = NULL;
- strncpy(buf, text, LINE_SIZE);
strncpy() doesn't terminate with NUL-character. You have to put manually buf[LINE_SIZE - 1] = 0; after strncpy() call.
Unfortunately there is no strlcpy() in user-space...
Takashi
- len = strlen(buf);
- if (len <= 2) {
fprintf(stderr, "error: invalid route \"%s\"\n", buf);return -EINVAL;- }
- /* find first , */
- for (i = 1; i < len; i++) {
if (buf[i] == ',')goto second;- }
- fprintf(stderr, "error: invalid route "%s"\n", buf);
- return -EINVAL;
+second:
- /* find second , */
- sink = buf;
- control = &buf[i + 2];
- buf[i] = 0;
- for (; i < len; i++) {
if (buf[i] == ',')goto done;- }
- fprintf(stderr, "error: invalid route "%s"\n", buf);
- return -EINVAL;
+done:
- buf[i] = 0;
- source = &buf[i + 2];
- strcpy(line->source, source);
- strcpy(line->control, control);
- strcpy(line->sink, sink);
- return 0;
+}
+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;
- int err;
- snd_config_for_each(i, next, cfg) {
const char *val;n = snd_config_iterator_entry(i);if (snd_config_get_string(n, &val) < 0)continue;elem = tplg_elem_new();if (!elem)return -ENOMEM;list_add_tail(&elem->list, &tplg->route_list);strcpy(elem->id, "line");elem->type = PARSER_TYPE_DAPM_GRAPH;elem->size = sizeof(*line);line = calloc(1, sizeof(*line));if (!line)return -ENOMEM;elem->route = line;err = tplg_parse_line(val, line);if (err < 0)return err;tplg_dbg("route: sink '%s', control '%s', source '%s'\n",line->sink, line->control, line->source);- }
- return 0;
+}
+int tplg_parse_dapm_graph(snd_tplg_t *tplg, snd_config_t *cfg,
- void *private ATTRIBUTE_UNUSED)
+{
- snd_config_iterator_t i, next;
- snd_config_t *n;
- int err;
- const char *graph_id;
- if (snd_config_get_type(cfg) != SND_CONFIG_TYPE_COMPOUND) {
fprintf(stderr, "error: compound is expected for dapm graph definition\n");return -EINVAL;- }
- snd_config_get_id(cfg, &graph_id);
- snd_config_for_each(i, next, cfg) {
const char *id;n = snd_config_iterator_entry(i);if (snd_config_get_id(n, &id) < 0) {continue;}if (strcmp(id, "lines") == 0) {err = tplg_parse_routes(tplg, n);if (err < 0) {fprintf(stderr, "error: failed to parse dapm graph %s\n",graph_id);return err;}continue;}- }
- return 0;
+}
+/* DAPM Widget.
- SectionWidget."widget name" {
- index "1"
- type "aif_in"
- no_pm "true"
- shift "0"
- invert "1
- mixer "name"
- enum "name"
- data "name"
- }
- */
+int tplg_parse_dapm_widget(snd_tplg_t *tplg,
- snd_config_t *cfg, void *private ATTRIBUTE_UNUSED)
+{
- struct snd_soc_tplg_dapm_widget *widget;
- struct tplg_elem *elem;
- snd_config_iterator_t i, next;
- snd_config_t *n;
- const char *id, *val = NULL;
- int widget_type, err;
- elem = tplg_elem_new_common(tplg, cfg, PARSER_TYPE_DAPM_WIDGET);
- if (!elem)
return -ENOMEM;- tplg_dbg(" Widget: %s\n", elem->id);
- widget = elem->widget;
- strncpy(widget->name, elem->id, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
- widget->size = elem->size;
- 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, "index") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;elem->index = atoi(val);tplg_dbg("\t%s: %d\n", id, elem->index);continue;}if (strcmp(id, "type") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;widget_type = lookup_widget(val);if (widget_type < 0){fprintf(stderr, "Widget '%s': Unsupported widget type %s\n",elem->id, val);return -EINVAL;}widget->id = widget_type;tplg_dbg("\t%s: %s\n", id, val);continue;}if (strcmp(id, "no_pm") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;if (strcmp(val, "true") == 0)widget->reg = -1;tplg_dbg("\t%s: %s\n", id, val);continue;}if (strcmp(id, "shift") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;widget->shift = atoi(val);tplg_dbg("\t%s: %d\n", id, widget->shift);continue;}if (strcmp(id, "invert") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;widget->invert = atoi(val);tplg_dbg("\t%s: %d\n", id, widget->invert);continue;}if (strcmp(id, "subseq") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;widget->subseq= atoi(val);tplg_dbg("\t%s: %d\n", id, widget->subseq);continue;}if (strcmp(id, "event_type") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;widget->event_type = atoi(val);tplg_dbg("\t%s: %d\n", id, widget->event_type);continue;}if (strcmp(id, "event_flags") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;widget->event_flags = atoi(val);tplg_dbg("\t%s: %d\n", id, widget->event_flags);continue;}if (strcmp(id, "enum") == 0) {err = tplg_parse_dapm_enums(n, elem);if (err < 0)return err;continue;}if (strcmp(id, "mixer") == 0) {err = tplg_parse_dapm_mixers(n, elem);if (err < 0)return err;continue;}if (strcmp(id, "data") == 0) {if (snd_config_get_string(n, &val) < 0)return -EINVAL;tplg_ref_add(elem, PARSER_TYPE_DATA, val);tplg_dbg("\t%s: %s\n", id, val);continue;}- }
- return 0;
+}
2.1.4