diff options
Diffstat (limited to 'sys/dev/pci/azalia.c')
| -rw-r--r-- | sys/dev/pci/azalia.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/sys/dev/pci/azalia.c b/sys/dev/pci/azalia.c index c7c8d0d9e92..8896ef8b24a 100644 --- a/sys/dev/pci/azalia.c +++ b/sys/dev/pci/azalia.c @@ -1,4 +1,4 @@ -/* $OpenBSD: azalia.c,v 1.78 2008/11/30 08:36:57 jakemsr Exp $ */ +/* $OpenBSD: azalia.c,v 1.79 2008/11/30 20:06:41 jakemsr Exp $ */ /* $NetBSD: azalia.c,v 1.20 2006/05/07 08:31:44 kent Exp $ */ /*- @@ -242,6 +242,7 @@ int azalia_widget_label_widgets(codec_t *); int azalia_widget_init_audio(widget_t *, const codec_t *); int azalia_widget_init_pin(widget_t *, const codec_t *); int azalia_widget_init_connection(widget_t *, const codec_t *); +int azalia_widget_check_conn(codec_t *, int, int); #ifdef AZALIA_DEBUG int azalia_widget_print_audio(const widget_t *, const char *); int azalia_widget_print_pin(const widget_t *); @@ -1286,6 +1287,17 @@ azalia_codec_init(codec_t *this) err = azalia_widget_label_widgets(this); if (err) return err; + /* Find widgets without any enabled inputs and disable them. + * Must be done after all widgets are initialized and + * their connections created. + */ + FOR_EACH_WIDGET(this, i) { + if (this->w[i].type == COP_AWTYPE_AUDIO_MIXER || + this->w[i].type == COP_AWTYPE_AUDIO_SELECTOR) { + if (!azalia_widget_check_conn(this, i, 0)) + this->w[i].enable = 0; + } + } err = this->init_dacgroup(this); if (err) return err; @@ -2047,6 +2059,36 @@ azalia_widget_init_connection(widget_t *this, const codec_t *codec) return 0; } +int +azalia_widget_check_conn(codec_t *codec, int index, int depth) +{ + const widget_t *w; + int i; + + w = &codec->w[index]; + + if (depth > 0 && + (w->type == COP_AWTYPE_PIN_COMPLEX || + w->type == COP_AWTYPE_AUDIO_OUTPUT || + w->type == COP_AWTYPE_AUDIO_INPUT)) { + if (w->enable) + return 1; + else + return 0; + } + if (++depth >= 10) + return 0; + for (i = 0; i < w->nconnections; i++) { + if (!VALID_WIDGET_NID(w->connections[i], codec) || + !codec->w[w->connections[i]].enable) + continue; + if (azalia_widget_check_conn(codec, w->connections[i], depth)) + return 1; + } + return 0; +} + + /* ================================================================ * Stream functions * ================================================================ */ |