#include <linux/types.h>
#include <sound/control.h>
+#include <sound/soc-topology.h>
+#include <sound/asoc.h>
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,\
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,
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) */
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 */
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;
};
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);
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;
};
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;
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
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
Code Review / kvmfornfv.git / blobdiff