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| author | Takashi Iwai <tiwai@suse.de> | 2012-08-20 10:22:25 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-08-20 11:24:29 +0200 |
| commit | b244d335609f9bbf4c0204a365bf03b7ac53c3c8 (patch) | |
| tree | 23a0a48e14788fae844c328ff64f97e0f084f9fb /sound/pci/hda | |
| parent | ALSA: snd-ad1816a: Implement suspend/resume (diff) | |
| download | linux-b244d335609f9bbf4c0204a365bf03b7ac53c3c8.tar.xz linux-b244d335609f9bbf4c0204a365bf03b7ac53c3c8.zip | |
ALSA: hda - Add tracepoints at snd_hda_power_up/down entrances.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 2 | ||||
| -rw-r--r-- | sound/pci/hda/hda_trace.h | 24 |
2 files changed, 26 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 408babc10437..ad0101e2d4ff 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -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; diff --git a/sound/pci/hda/hda_trace.h b/sound/pci/hda/hda_trace.h index 9884871ddb00..9a34b867d8c2 100644 --- a/sound/pci/hda/hda_trace.h +++ b/sound/pci/hda/hda_trace.h @@ -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), |