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Commit b244d335 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Add tracepoints at snd_hda_power_up/down entrances. 



Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 6f0fa660

sound/pci/hda/hda_codec.c

+2 −0
Original line number Diff line number Diff line
@@ -4417,6 +4417,7 @@ static void __snd_hda_power_up(struct hda_codec *codec, bool wait_power_down) 


	spin_lock(&codec->power_lock);

	codec->power_count++;

	trace_hda_power_count(codec);

	/* Return if power_on or transitioning to power_on, unless currently

	 * powering down. */

	if ((codec->power_on || codec->power_transition > 0) &&
@@ -4496,6 +4497,7 @@ void snd_hda_power_down(struct hda_codec *codec) 
{

	spin_lock(&codec->power_lock);

	--codec->power_count;

	trace_hda_power_count(codec);

	if (!codec->power_on || codec->power_count || codec->power_transition) {

		spin_unlock(&codec->power_lock);

		return;

sound/pci/hda/hda_trace.h

+24 −0
Original line number Diff line number Diff line
@@ -87,6 +87,30 @@ DEFINE_EVENT(hda_power, hda_power_up, 
	TP_ARGS(codec)

);



TRACE_EVENT(hda_power_count,

	TP_PROTO(struct hda_codec *codec),

	TP_ARGS(codec),

	TP_STRUCT__entry(

		__field( unsigned int, card )

		__field( unsigned int, addr )

		__field( int, power_count )

		__field( int, power_on )

		__field( int, power_transition )

	),



	TP_fast_assign(

		__entry->card = (codec)->bus->card->number;

		__entry->addr = (codec)->addr;

		__entry->power_count = (codec)->power_count;

		__entry->power_on = (codec)->power_on;

		__entry->power_transition = (codec)->power_transition;

	),



	TP_printk("[%d:%d] power_count=%d, power_on=%d, power_transition=%d",

		  __entry->card, __entry->addr, __entry->power_count,

		  __entry->power_on, __entry->power_transition)

);



TRACE_EVENT(hda_unsol_event,



	TP_PROTO(struct hda_bus *bus, u32 res, u32 res_ex),