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-rw-r--r--include/sound/soc-dapm.h3
-rw-r--r--include/sound/soc.h1
-rw-r--r--sound/soc/soc-core.c6
-rw-r--r--sound/soc/soc-dapm.c164
4 files changed, 166 insertions, 8 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 8d7416e46861..eda881402dda 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -378,6 +378,7 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card);
void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card);
int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
const struct snd_soc_pcm_stream *params,
+ unsigned int num_params,
struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink);
@@ -531,6 +532,8 @@ struct snd_soc_dapm_widget {
void *priv; /* widget specific data */
struct regulator *regulator; /* attached regulator */
const struct snd_soc_pcm_stream *params; /* params for dai links */
+ unsigned int num_params; /* number of params for dai links */
+ unsigned int params_select; /* currently selected param for dai link */
/* dapm control */
int reg; /* negative reg = no direct dapm */
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 0d1ade195628..4636a058372b 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -941,6 +941,7 @@ struct snd_soc_dai_link {
int be_id; /* optional ID for machine driver BE identification */
const struct snd_soc_pcm_stream *params;
+ unsigned int num_params;
unsigned int dai_fmt; /* format to set on init */
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 30579ca5bacb..700ac2ffe696 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1245,7 +1245,8 @@ static int soc_link_dai_widgets(struct snd_soc_card *card,
capture_w = cpu_dai->capture_widget;
if (play_w && capture_w) {
ret = snd_soc_dapm_new_pcm(card, dai_link->params,
- capture_w, play_w);
+ dai_link->num_params, capture_w,
+ play_w);
if (ret != 0) {
dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
play_w->name, capture_w->name, ret);
@@ -1257,7 +1258,8 @@ static int soc_link_dai_widgets(struct snd_soc_card *card,
capture_w = codec_dai->capture_widget;
if (play_w && capture_w) {
ret = snd_soc_dapm_new_pcm(card, dai_link->params,
- capture_w, play_w);
+ dai_link->num_params, capture_w,
+ play_w);
if (ret != 0) {
dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
play_w->name, capture_w->name, ret);
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index b6f88202b8c9..6828b4ed5447 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -853,6 +853,36 @@ static int dapm_new_pga(struct snd_soc_dapm_widget *w)
return 0;
}
+/* create new dapm dai link control */
+static int dapm_new_dai_link(struct snd_soc_dapm_widget *w)
+{
+ int i, ret;
+ struct snd_kcontrol *kcontrol;
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_card *card = dapm->card->snd_card;
+
+ /* create control for links with > 1 config */
+ if (w->num_params <= 1)
+ return 0;
+
+ /* add kcontrol */
+ for (i = 0; i < w->num_kcontrols; i++) {
+ kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w,
+ w->name, NULL);
+ ret = snd_ctl_add(card, kcontrol);
+ if (ret < 0) {
+ dev_err(dapm->dev,
+ "ASoC: failed to add widget %s dapm kcontrol %s: %d\n",
+ w->name, w->kcontrol_news[i].name, ret);
+ return ret;
+ }
+ kcontrol->private_data = w;
+ w->kcontrols[i] = kcontrol;
+ }
+
+ return 0;
+}
+
/* We implement power down on suspend by checking the power state of
* the ALSA card - when we are suspending the ALSA state for the card
* is set to D3.
@@ -2719,6 +2749,9 @@ int snd_soc_dapm_new_widgets(struct snd_soc_card *card)
case snd_soc_dapm_out_drv:
dapm_new_pga(w);
break;
+ case snd_soc_dapm_dai_link:
+ dapm_new_dai_link(w);
+ break;
default:
break;
}
@@ -3193,7 +3226,7 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
{
struct snd_soc_dapm_path *source_p, *sink_p;
struct snd_soc_dai *source, *sink;
- const struct snd_soc_pcm_stream *config = w->params;
+ const struct snd_soc_pcm_stream *config = w->params + w->params_select;
struct snd_pcm_substream substream;
struct snd_pcm_hw_params *params = NULL;
u64 fmt;
@@ -3285,8 +3318,39 @@ out:
return ret;
}
+static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] = w->params_select;
+
+ return 0;
+}
+
+static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol);
+
+ /* Can't change the config when widget is already powered */
+ if (w->power)
+ return -EBUSY;
+
+ if (ucontrol->value.integer.value[0] == w->params_select)
+ return 0;
+
+ if (ucontrol->value.integer.value[0] >= w->num_params)
+ return -EINVAL;
+
+ w->params_select = ucontrol->value.integer.value[0];
+
+ return 0;
+}
+
int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
const struct snd_soc_pcm_stream *params,
+ unsigned int num_params,
struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
@@ -3294,14 +3358,61 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
struct snd_soc_dapm_widget *w;
size_t len;
char *link_name;
- int ret;
+ int ret, count;
+ unsigned long private_value;
+ const char **w_param_text;
+ struct soc_enum w_param_enum[] = {
+ SOC_ENUM_SINGLE(0, 0, 0, NULL),
+ };
+ struct snd_kcontrol_new kcontrol_dai_link[] = {
+ SOC_ENUM_EXT(NULL, w_param_enum[0],
+ snd_soc_dapm_dai_link_get,
+ snd_soc_dapm_dai_link_put),
+ };
+ const struct snd_soc_pcm_stream *config = params;
+
+ w_param_text = devm_kcalloc(card->dev, num_params,
+ sizeof(char *), GFP_KERNEL);
+ if (!w_param_text)
+ return -ENOMEM;
len = strlen(source->name) + strlen(sink->name) + 2;
link_name = devm_kzalloc(card->dev, len, GFP_KERNEL);
- if (!link_name)
- return -ENOMEM;
+ if (!link_name) {
+ ret = -ENOMEM;
+ goto outfree_w_param;
+ }
snprintf(link_name, len, "%s-%s", source->name, sink->name);
+ for (count = 0 ; count < num_params; count++) {
+ if (!config->stream_name) {
+ dev_warn(card->dapm.dev,
+ "ASoC: anonymous config %d for dai link %s\n",
+ count, link_name);
+ len = strlen("Anonymous Configuration ") + 3;
+ w_param_text[count] =
+ devm_kzalloc(card->dev, len, GFP_KERNEL);
+ if (!w_param_text[count]) {
+ ret = -ENOMEM;
+ goto outfree_link_name;
+ }
+ snprintf(w_param_text[count], len,
+ "Anonymous Configuration %d", count);
+ } else {
+ w_param_text[count] = devm_kmemdup(card->dev,
+ config->stream_name,
+ strlen(config->stream_name) + 1,
+ GFP_KERNEL);
+ if (!w_param_text[count]) {
+ ret = -ENOMEM;
+ goto outfree_link_name;
+ }
+ }
+ config++;
+ }
+ w_param_enum[0].items = num_params;
+ w_param_enum[0].texts = w_param_text;
+
memset(&template, 0, sizeof(template));
template.reg = SND_SOC_NOPM;
template.id = snd_soc_dapm_dai_link;
@@ -3309,6 +3420,30 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
template.event = snd_soc_dai_link_event;
template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMD;
+ template.num_kcontrols = 1;
+ /* duplicate w_param_enum on heap so that memory persists */
+ private_value =
+ (unsigned long) devm_kmemdup(card->dev,
+ (void *)(kcontrol_dai_link[0].private_value),
+ sizeof(struct soc_enum), GFP_KERNEL);
+ if (!private_value) {
+ dev_err(card->dev, "ASoC: Failed to create control for %s widget\n",
+ link_name);
+ ret = -ENOMEM;
+ goto outfree_link_name;
+ }
+ kcontrol_dai_link[0].private_value = private_value;
+ /* duplicate kcontrol_dai_link on heap so that memory persists */
+ template.kcontrol_news =
+ devm_kmemdup(card->dev, &kcontrol_dai_link[0],
+ sizeof(struct snd_kcontrol_new),
+ GFP_KERNEL);
+ if (!template.kcontrol_news) {
+ dev_err(card->dev, "ASoC: Failed to create control for %s widget\n",
+ link_name);
+ ret = -ENOMEM;
+ goto outfree_private_value;
+ }
dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name);
@@ -3316,15 +3451,32 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
if (!w) {
dev_err(card->dev, "ASoC: Failed to create %s widget\n",
link_name);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto outfree_kcontrol_news;
}
w->params = params;
+ w->num_params = num_params;
ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL);
if (ret)
- return ret;
+ goto outfree_w;
return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL);
+
+outfree_w:
+ devm_kfree(card->dev, w);
+outfree_kcontrol_news:
+ devm_kfree(card->dev, (void *)template.kcontrol_news);
+outfree_private_value:
+ devm_kfree(card->dev, (void *)private_value);
+outfree_link_name:
+ devm_kfree(card->dev, link_name);
+outfree_w_param:
+ for (count = 0 ; count < num_params; count++)
+ devm_kfree(card->dev, (void *)w_param_text[count]);
+ devm_kfree(card->dev, w_param_text);
+
+ return ret;
}
int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 15:27:02 +0100