diff options
Diffstat (limited to 'include/sound/soc-dapm.h')
| -rw-r--r-- | include/sound/soc-dapm.h | 69 |
1 files changed, 55 insertions, 14 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 4973083d89ce..5abba037d245 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -512,9 +512,18 @@ struct snd_soc_dapm_route { struct snd_soc_dapm_path { const char *name; - /* source (input) and sink (output) widgets */ - struct snd_soc_dapm_widget *source; - struct snd_soc_dapm_widget *sink; + /* + * source (input) and sink (output) widgets + * The union is for convience, since it is a lot nicer to type + * p->source, rather than p->node[SND_SOC_DAPM_DIR_IN] + */ + union { + struct { + struct snd_soc_dapm_widget *source; + struct snd_soc_dapm_widget *sink; + }; + struct snd_soc_dapm_widget *node[2]; + }; /* status */ u32 connect:1; /* source and sink widgets are connected */ @@ -525,8 +534,7 @@ struct snd_soc_dapm_path { int (*connected)(struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink); - struct list_head list_source; - struct list_head list_sink; + struct list_head list_node[2]; struct list_head list_kcontrol; struct list_head list; }; @@ -560,8 +568,7 @@ struct snd_soc_dapm_widget { unsigned char new_power:1; /* power from this run */ unsigned char power_checked:1; /* power checked this run */ unsigned char is_supply:1; /* Widget is a supply type widget */ - unsigned char is_sink:1; /* Widget is a sink type widget */ - unsigned char is_source:1; /* Widget is a source type widget */ + unsigned char is_ep:2; /* Widget is a endpoint type widget */ int subseq; /* sort within widget type */ int (*power_check)(struct snd_soc_dapm_widget *w); @@ -576,16 +583,14 @@ struct snd_soc_dapm_widget { struct snd_kcontrol **kcontrols; struct snd_soc_dobj dobj; - /* widget input and outputs */ - struct list_head sources; - struct list_head sinks; + /* widget input and output edges */ + struct list_head edges[2]; /* used during DAPM updates */ struct list_head work_list; struct list_head power_list; struct list_head dirty; - int inputs; - int outputs; + int endpoints[2]; struct clk *clk; }; @@ -673,6 +678,42 @@ static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level( return dapm->bias_level; } +enum snd_soc_dapm_direction { + SND_SOC_DAPM_DIR_IN, + SND_SOC_DAPM_DIR_OUT +}; + +#define SND_SOC_DAPM_DIR_TO_EP(x) BIT(x) + +#define SND_SOC_DAPM_EP_SOURCE SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_IN) +#define SND_SOC_DAPM_EP_SINK SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_OUT) + +/** + * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths in the + * specified direction of a widget + * @w: The widget + * @dir: Whether to iterate over the paths where the specified widget is the + * incoming or outgoing widgets + * @p: The path iterator variable + */ +#define snd_soc_dapm_widget_for_each_path(w, dir, p) \ + list_for_each_entry(p, &w->edges[dir], list_node[dir]) + +/** + * snd_soc_dapm_widget_for_each_sink_path_safe - Iterates over all paths in the + * specified direction of a widget + * @w: The widget + * @dir: Whether to iterate over the paths where the specified widget is the + * incoming or outgoing widgets + * @p: The path iterator variable + * @next_p: Temporary storage for the next path + * + * This function works like snd_soc_dapm_widget_for_each_sink_path, expect that + * it is safe to remove the current path from the list while iterating + */ +#define snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) \ + list_for_each_entry_safe(p, next_p, &w->edges[dir], list_node[dir]) + /** * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths leaving a * widget @@ -680,7 +721,7 @@ static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level( * @p: The path iterator variable */ #define snd_soc_dapm_widget_for_each_sink_path(w, p) \ - list_for_each_entry(p, &w->sinks, list_source) + snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_IN, p) /** * snd_soc_dapm_widget_for_each_source_path - Iterates over all paths leading to @@ -689,6 +730,6 @@ static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level( * @p: The path iterator variable */ #define snd_soc_dapm_widget_for_each_source_path(w, p) \ - list_for_each_entry(p, &w->sources, list_sink) + snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_OUT, p) #endif |