diff options
Diffstat (limited to 'kernel/include/sound/soc-dapm.h')
| -rw-r--r-- | kernel/include/sound/soc-dapm.h | 137 |
1 files changed, 125 insertions, 12 deletions
diff --git a/kernel/include/sound/soc-dapm.h b/kernel/include/sound/soc-dapm.h index 1065095c6..95a937eaf 100644 --- a/kernel/include/sound/soc-dapm.h +++ b/kernel/include/sound/soc-dapm.h @@ -15,6 +15,8 @@ #include <linux/types.h> #include <sound/control.h> +#include <sound/soc-topology.h> +#include <sound/asoc.h> struct device; @@ -107,6 +109,10 @@ struct device; { .id = snd_soc_dapm_mux, .name = wname, \ SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ .kcontrol_news = wcontrols, .num_kcontrols = 1} +#define SND_SOC_DAPM_DEMUX(wname, wreg, wshift, winvert, wcontrols) \ +{ .id = snd_soc_dapm_demux, .name = wname, \ + SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ + .kcontrol_news = wcontrols, .num_kcontrols = 1} /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\ @@ -391,6 +397,8 @@ int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, const struct snd_soc_dapm_route *route, int num); int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, const struct snd_soc_dapm_route *route, int num); +void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w); +void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm); /* dapm events */ void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, @@ -444,11 +452,18 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( struct snd_kcontrol *kcontrol); +struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( + struct snd_kcontrol *kcontrol); + +int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level); + /* dapm widget types */ enum snd_soc_dapm_type { snd_soc_dapm_input = 0, /* input pin */ snd_soc_dapm_output, /* output pin */ snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ + snd_soc_dapm_demux, /* connects the input to one of multiple outputs */ snd_soc_dapm_mixer, /* mixes several analog signals together */ snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */ snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ @@ -501,9 +516,18 @@ 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 */ @@ -514,8 +538,7 @@ 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; }; @@ -549,8 +572,7 @@ 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); @@ -563,17 +585,16 @@ struct snd_soc_dapm_widget { int num_kcontrols; const struct snd_kcontrol_new *kcontrol_news; 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; }; @@ -585,6 +606,10 @@ struct snd_soc_dapm_update { int val; }; +struct snd_soc_dapm_wcache { + struct snd_soc_dapm_widget *widget; +}; + /* DAPM context */ struct snd_soc_dapm_context { enum snd_soc_bias_level bias_level; @@ -606,6 +631,9 @@ struct snd_soc_dapm_context { int (*set_bias_level)(struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level); + struct snd_soc_dapm_wcache path_sink_cache; + struct snd_soc_dapm_wcache path_source_cache; + #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dapm; #endif @@ -623,4 +651,89 @@ struct snd_soc_dapm_stats { int neighbour_checks; }; +/** + * snd_soc_dapm_init_bias_level() - Initialize DAPM bias level + * @dapm: The DAPM context to initialize + * @level: The DAPM level to initialize to + * + * This function only sets the driver internal state of the DAPM level and will + * not modify the state of the device. Hence it should not be used during normal + * operation, but only to synchronize the internal state to the device state. + * E.g. during driver probe to set the DAPM level to the one corresponding with + * the power-on reset state of the device. + * + * To change the DAPM state of the device use snd_soc_dapm_set_bias_level(). + */ +static inline void snd_soc_dapm_init_bias_level( + struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) +{ + dapm->bias_level = level; +} + +/** + * snd_soc_dapm_get_bias_level() - Get current DAPM bias level + * @dapm: The context for which to get the bias level + * + * Returns: The current bias level of the passed DAPM context. + */ +static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level( + struct snd_soc_dapm_context *dapm) +{ + 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 + * @w: The widget + * @p: The path iterator variable + */ +#define snd_soc_dapm_widget_for_each_sink_path(w, p) \ + 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 + * a widget + * @w: The widget + * @p: The path iterator variable + */ +#define snd_soc_dapm_widget_for_each_source_path(w, p) \ + snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_OUT, p) + #endif |