ALSA: hda - Add tracepoints to HD-audio controller driver
Add a couple of tracepoints to snd-hda-intel for tracing the position
and the trigger timings.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_intel_trace.h b/sound/pci/hda/hda_intel_trace.h
new file mode 100644
index 0000000..7b5e4c2
--- /dev/null
+++ b/sound/pci/hda/hda_intel_trace.h
@@ -0,0 +1,62 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hda_intel
+#define TRACE_INCLUDE_FILE hda_intel_trace
+
+#if !defined(_TRACE_HDA_INTEL_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HDA_INTEL_H
+
+#include <linux/tracepoint.h>
+
+struct azx;
+struct azx_dev;
+
+TRACE_EVENT(azx_pcm_trigger,
+
+ TP_PROTO(struct azx *chip, struct azx_dev *dev, int cmd),
+
+ TP_ARGS(chip, dev, cmd),
+
+ TP_STRUCT__entry(
+ __field( int, card )
+ __field( int, idx )
+ __field( int, cmd )
+ ),
+
+ TP_fast_assign(
+ __entry->card = (chip)->card->number;
+ __entry->idx = (dev)->index;
+ __entry->cmd = cmd;
+ ),
+
+ TP_printk("[%d:%d] cmd=%d", __entry->card, __entry->idx, __entry->cmd)
+);
+
+TRACE_EVENT(azx_get_position,
+
+ TP_PROTO(struct azx *chip, struct azx_dev *dev, unsigned int pos, unsigned int delay),
+
+ TP_ARGS(chip, dev, pos, delay),
+
+ TP_STRUCT__entry(
+ __field( int, card )
+ __field( int, idx )
+ __field( unsigned int, pos )
+ __field( unsigned int, delay )
+ ),
+
+ TP_fast_assign(
+ __entry->card = (chip)->card->number;
+ __entry->idx = (dev)->index;
+ __entry->pos = pos;
+ __entry->delay = delay;
+ ),
+
+ TP_printk("[%d:%d] pos=%u, delay=%u", __entry->card, __entry->idx, __entry->pos, __entry->delay)
+);
+
+#endif /* _TRACE_HDA_INTEL_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#include <trace/define_trace.h>