ALSA: hda - add hdac stream trace
Add the trace of snd_hdac_stream_start and snd_hdac_stream_stop.
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index 1ba0462..52a894f 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -10,6 +10,7 @@
#include <sound/pcm.h>
#include <sound/hdaudio.h>
#include <sound/hda_register.h>
+#include "trace.h"
/**
* snd_hdac_stream_init - initialize each stream (aka device)
@@ -48,6 +49,8 @@
{
struct hdac_bus *bus = azx_dev->bus;
+ trace_snd_hdac_stream_start(bus, azx_dev);
+
azx_dev->start_wallclk = snd_hdac_chip_readl(bus, WALLCLK);
if (!fresh_start)
azx_dev->start_wallclk -= azx_dev->period_wallclk;
@@ -82,6 +85,8 @@
*/
void snd_hdac_stream_stop(struct hdac_stream *azx_dev)
{
+ trace_snd_hdac_stream_stop(azx_dev->bus, azx_dev);
+
snd_hdac_stream_clear(azx_dev);
/* disable SIE */
snd_hdac_chip_updatel(azx_dev->bus, INTCTL, 1 << azx_dev->index, 0);
diff --git a/sound/hda/trace.h b/sound/hda/trace.h
index 33a7eb5..e27e2c0 100644
--- a/sound/hda/trace.h
+++ b/sound/hda/trace.h
@@ -50,6 +50,33 @@
),
TP_printk("%s", __get_str(msg))
);
+
+DECLARE_EVENT_CLASS(hdac_stream,
+ TP_PROTO(struct hdac_bus *bus, struct hdac_stream *azx_dev),
+
+ TP_ARGS(bus, azx_dev),
+
+ TP_STRUCT__entry(
+ __field(unsigned char, stream_tag)
+ ),
+
+ TP_fast_assign(
+ __entry->stream_tag = (azx_dev)->stream_tag;
+ ),
+
+ TP_printk("stream_tag: %d", __entry->stream_tag)
+);
+
+DEFINE_EVENT(hdac_stream, snd_hdac_stream_start,
+ TP_PROTO(struct hdac_bus *bus, struct hdac_stream *azx_dev),
+ TP_ARGS(bus, azx_dev)
+);
+
+DEFINE_EVENT(hdac_stream, snd_hdac_stream_stop,
+ TP_PROTO(struct hdac_bus *bus, struct hdac_stream *azx_dev),
+ TP_ARGS(bus, azx_dev)
+);
+
#endif /* __HDAC_TRACE_H */
/* This part must be outside protection */