ALSA: hda - Add tracepoint for unsolicited events
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
index ba2a155..850b1b3 100644
--- a/Documentation/sound/alsa/HD-Audio.txt
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -529,7 +529,8 @@
The hd-audio driver gives a few basic tracepoints.
`hda:hda_send_cmd` traces each CORB write while `hda:hda_get_response`
traces the response from RIRB (only when read from the codec driver).
-`hda:hda_bus_reset` traces the bus-reset due to fatal error, etc, and
+`hda:hda_bus_reset` traces the bus-reset due to fatal error, etc,
+`hda:hda_unsol_event` traces the unsolicited events, and
`hda:hda_power_down` and `hda:hda_power_up` trace the power down/up
via power-saving behavior.
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index e105b65..2a8d447 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -610,6 +610,7 @@
struct hda_bus_unsolicited *unsol;
unsigned int wp;
+ trace_hda_unsol_event(bus, res, res_ex);
unsol = bus->unsol;
if (!unsol)
return 0;
diff --git a/sound/pci/hda/hda_trace.h b/sound/pci/hda/hda_trace.h
index b446cfc..9884871 100644
--- a/sound/pci/hda/hda_trace.h
+++ b/sound/pci/hda/hda_trace.h
@@ -87,6 +87,28 @@
TP_ARGS(codec)
);
+TRACE_EVENT(hda_unsol_event,
+
+ TP_PROTO(struct hda_bus *bus, u32 res, u32 res_ex),
+
+ TP_ARGS(bus, res, res_ex),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, card )
+ __field( u32, res )
+ __field( u32, res_ex )
+ ),
+
+ TP_fast_assign(
+ __entry->card = (bus)->card->number;
+ __entry->res = res;
+ __entry->res_ex = res_ex;
+ ),
+
+ TP_printk("[%d] res=%x, res_ex=%x", __entry->card,
+ __entry->res, __entry->res_ex)
+);
+
#endif /* _TRACE_HDA_H */
/* This part must be outside protection */