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Commit ecf726f5 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Add tracepoint for unsolicited events 



Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent d11b7fa3

Documentation/sound/alsa/HD-Audio.txt

+2 −1
Original line number Original line Diff line number Diff line
@@ -529,7 +529,8 @@ Tracepoints 
The hd-audio driver gives a few basic tracepoints.

The hd-audio driver gives a few basic tracepoints.

`hda:hda_send_cmd` traces each CORB write while `hda:hda_get_response`

`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).

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

`hda:hda_power_down` and `hda:hda_power_up` trace the power down/up

via power-saving behavior.

via power-saving behavior.

sound/pci/hda/hda_codec.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -610,6 +610,7 @@ int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex) 
	struct hda_bus_unsolicited *unsol;

	struct hda_bus_unsolicited *unsol;

	unsigned int wp;

	unsigned int wp;





	trace_hda_unsol_event(bus, res, res_ex);

	unsol = bus->unsol;

	unsol = bus->unsol;

	if (!unsol)

	if (!unsol)

		return 0;

		return 0;

sound/pci/hda/hda_trace.h

+22 −0
Original line number Original line Diff line number Diff line
@@ -87,6 +87,28 @@ DEFINE_EVENT(hda_power, hda_power_up, 
	TP_ARGS(codec)

	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 */

#endif /* _TRACE_HDA_H */





/* This part must be outside protection */

/* This part must be outside protection */