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ASoC: dapm: Add API call to query valid DAPM paths

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In preparation for ASoC DSP support.

Add a DAPM API call to determine whether a DAPM audio path is valid between
source and sink widgets. This also takes into account all kcontrol mux and mixer
settings in between the source and sink widgets to validate the audio path.

This will be used by the DSP core to determine the runtime DAI mappings
between FE and BE DAIs in order to run PCM operations.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Liam Girdwood 2012-04-18 11:41:11 +01:00 • committed by Mark Brown
parent 0cbe4b36b0
commit ec2e3031b6
3 changed files with 197 additions and 10 deletions
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80
include/trace/events/asoc.h
View file

@ -7,6 +7,8 @@
#include <linux/ktime.h>
#include <linux/tracepoint.h>
#define DAPM_DIRECT "(direct)"
struct snd_soc_jack;
struct snd_soc_codec;
struct snd_soc_platform;
@ -241,6 +243,84 @@ TRACE_EVENT(snd_soc_dapm_walk_done,
(int)__entry->path_checks, (int)__entry->neighbour_checks)
);
TRACE_EVENT(snd_soc_dapm_output_path,
TP_PROTO(struct snd_soc_dapm_widget *widget,
struct snd_soc_dapm_path *path),
TP_ARGS(widget, path),
TP_STRUCT__entry(
__string( wname, widget->name )
__string( pname, path->name ? path->name : DAPM_DIRECT)
__string( psname, path->sink->name )
__field( int, path_sink )
__field( int, path_connect )
),
TP_fast_assign(
__assign_str(wname, widget->name);
__assign_str(pname, path->name ? path->name : DAPM_DIRECT);
__assign_str(psname, path->sink->name);
__entry->path_connect = path->connect;
__entry->path_sink = (int)path->sink;
),
TP_printk("%c%s -> %s -> %s\n",
(int) __entry->path_sink &&
(int) __entry->path_connect ? '*' : ' ',
__get_str(wname), __get_str(pname), __get_str(psname))
);
TRACE_EVENT(snd_soc_dapm_input_path,
TP_PROTO(struct snd_soc_dapm_widget *widget,
struct snd_soc_dapm_path *path),
TP_ARGS(widget, path),
TP_STRUCT__entry(
__string( wname, widget->name )
__string( pname, path->name ? path->name : DAPM_DIRECT)
__string( psname, path->source->name )
__field( int, path_source )
__field( int, path_connect )
),
TP_fast_assign(
__assign_str(wname, widget->name);
__assign_str(pname, path->name ? path->name : DAPM_DIRECT);
__assign_str(psname, path->source->name);
__entry->path_connect = path->connect;
__entry->path_source = (int)path->source;
),
TP_printk("%c%s <- %s <- %s\n",
(int) __entry->path_source &&
(int) __entry->path_connect ? '*' : ' ',
__get_str(wname), __get_str(pname), __get_str(psname))
);
TRACE_EVENT(snd_soc_dapm_connected,
TP_PROTO(int paths, int stream),
TP_ARGS(paths, stream),
TP_STRUCT__entry(
__field( int, paths )
__field( int, stream )
),
TP_fast_assign(
__entry->paths = paths;
__entry->stream = stream;
),
TP_printk("%s: found %d paths\n",
__entry->stream ? "capture" : "playback", __entry->paths)
);
TRACE_EVENT(snd_soc_jack_irq,
TP_PROTO(const char *name),