Decoupling DAPM paths from DAPM context is a first prerequisite when extending ASoC core to cross-device paths. This patch is almost a nullop and does not allow to construct cross-device setup but the path clean-up part in dapm_free_widgets is prepared to remove cross-device paths between a device being removed and others.
Signed-off-by: Jarkko Nikula jhnikula@gmail.com --- include/sound/soc-dapm.h | 1 - include/sound/soc.h | 2 + sound/soc/codecs/tlv320aic3x.c | 2 +- sound/soc/soc-core.c | 2 +- sound/soc/soc-dapm.c | 41 ++++++++++++++++++++++++++------------- 5 files changed, 31 insertions(+), 17 deletions(-)
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 041e98b..9d1ff07 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -469,7 +469,6 @@ struct snd_soc_dapm_widget { /* DAPM context */ struct snd_soc_dapm_context { struct list_head widgets; - struct list_head paths; enum snd_soc_bias_level bias_level; enum snd_soc_bias_level suspend_bias_level; struct delayed_work delayed_work; diff --git a/include/sound/soc.h b/include/sound/soc.h index 7e65b01..466895b 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -661,6 +661,8 @@ struct snd_soc_card { struct list_head platform_dev_list; struct list_head dai_dev_list;
+ struct list_head paths; + #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_card_root; struct dentry *debugfs_pop_time; diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index fc5abdf..899af41 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -185,7 +185,7 @@ static int snd_soc_dapm_put_volsw_aic3x(struct snd_kcontrol *kcontrol,
if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { /* find dapm widget path assoc with kcontrol */ - list_for_each_entry(path, &widget->dapm->paths, list) { + list_for_each_entry(path, &widget->dapm->card->paths, list) { if (path->kcontrol != kcontrol) continue;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 1dc4b11..bdb2ca9 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1879,6 +1879,7 @@ static int soc_probe(struct platform_device *pdev) INIT_LIST_HEAD(&card->dai_dev_list); INIT_LIST_HEAD(&card->codec_dev_list); INIT_LIST_HEAD(&card->platform_dev_list); + INIT_LIST_HEAD(&card->paths);
soc_init_card_debugfs(card);
@@ -3481,7 +3482,6 @@ int snd_soc_register_codec(struct device *dev, codec->compress_type = SND_SOC_FLAT_COMPRESSION;
INIT_LIST_HEAD(&codec->dapm.widgets); - INIT_LIST_HEAD(&codec->dapm.paths); codec->write = codec_drv->write; codec->read = codec_drv->read; codec->dapm.bias_level = SND_SOC_BIAS_OFF; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index b521a13..314238a 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -269,7 +269,7 @@ static int dapm_connect_mux(struct snd_soc_dapm_context *dapm,
for (i = 0; i < e->max; i++) { if (!(strcmp(control_name, e->texts[i]))) { - list_add(&path->list, &dapm->paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &dest->sources); list_add(&path->list_source, &src->sinks); path->name = (char*)e->texts[i]; @@ -291,7 +291,7 @@ static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, /* search for mixer kcontrol */ for (i = 0; i < dest->num_kcontrols; i++) { if (!strcmp(control_name, dest->kcontrols[i].name)) { - list_add(&path->list, &dapm->paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &dest->sources); list_add(&path->list_source, &src->sinks); path->name = dest->kcontrols[i].name; @@ -450,7 +450,7 @@ static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) { struct snd_soc_dapm_path *p;
- list_for_each_entry(p, &dapm->paths, list) + list_for_each_entry(p, &dapm->card->paths, list) p->walked = 0; }
@@ -1177,7 +1177,7 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, return 0;
/* find dapm widget path assoc with kcontrol */ - list_for_each_entry(path, &widget->dapm->paths, list) { + list_for_each_entry(path, &widget->dapm->card->paths, list) { if (path->kcontrol != kcontrol) continue;
@@ -1211,7 +1211,7 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, return -ENODEV;
/* find dapm widget path assoc with kcontrol */ - list_for_each_entry(path, &widget->dapm->paths, list) { + list_for_each_entry(path, &widget->dapm->card->paths, list) { if (path->kcontrol != kcontrol) continue;
@@ -1301,15 +1301,28 @@ static void dapm_free_widgets(struct snd_soc_dapm_context *dapm)
list_for_each_entry_safe(w, next_w, &dapm->widgets, list) { list_del(&w->list); + /* + * remove source and sink paths associated to this widget. + * While removing the path, remove reference to it from both + * source and sink widgets so that path is removed only once. + */ + list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { + list_del(&p->list_sink); + list_del(&p->list_source); + list_del(&p->list); + kfree(p->long_name); + kfree(p); + } + list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { + list_del(&p->list_sink); + list_del(&p->list_source); + list_del(&p->list); + kfree(p->long_name); + kfree(p); + } kfree(w->name); kfree(w); } - - list_for_each_entry_safe(p, next_p, &dapm->paths, list) { - list_del(&p->list); - kfree(p->long_name); - kfree(p); - } }
static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, @@ -1416,7 +1429,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
/* connect static paths */ if (control == NULL) { - list_add(&path->list, &dapm->paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 1; @@ -1437,7 +1450,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, case snd_soc_dapm_supply: case snd_soc_dapm_aif_in: case snd_soc_dapm_aif_out: - list_add(&path->list, &dapm->paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 1; @@ -1460,7 +1473,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, case snd_soc_dapm_mic: case snd_soc_dapm_line: case snd_soc_dapm_spk: - list_add(&path->list, &dapm->paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 0;