ALSA: hda - Add basic tracepoints

Add a few tracepoints to HD-audio driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 95 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_trace.h b/sound/pci/hda/hda_trace.h
new file mode 100644
index 000000000000..b446cfcf60de
--- /dev/null
+++ b/sound/pci/hda/hda_trace.h
@@ -0,0 +1,95 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hda
+#define TRACE_INCLUDE_FILE hda_trace
+
+#if !defined(_TRACE_HDA_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HDA_H
+
+#include <linux/tracepoint.h>
+
+struct hda_bus;
+struct hda_codec;
+
+DECLARE_EVENT_CLASS(hda_cmd,
+
+	TP_PROTO(struct hda_codec *codec, unsigned int val),
+
+	TP_ARGS(codec, val),
+
+	TP_STRUCT__entry(
+		__field( unsigned int, card )
+		__field( unsigned int, addr )
+		__field( unsigned int, val )
+	),
+
+	TP_fast_assign(
+		__entry->card = (codec)->bus->card->number;
+		__entry->addr = (codec)->addr;
+		__entry->val = (val);
+	),
+
+	TP_printk("[%d:%d] val=%x", __entry->card, __entry->addr, __entry->val)
+);
+
+DEFINE_EVENT(hda_cmd, hda_send_cmd,
+	TP_PROTO(struct hda_codec *codec, unsigned int val),
+	TP_ARGS(codec, val)
+);
+
+DEFINE_EVENT(hda_cmd, hda_get_response,
+	TP_PROTO(struct hda_codec *codec, unsigned int val),
+	TP_ARGS(codec, val)
+);
+
+TRACE_EVENT(hda_bus_reset,
+
+	TP_PROTO(struct hda_bus *bus),
+
+	TP_ARGS(bus),
+
+	TP_STRUCT__entry(
+		__field( unsigned int, card )
+	),
+
+	TP_fast_assign(
+		__entry->card = (bus)->card->number;
+	),
+
+	TP_printk("[%d]", __entry->card)
+);
+
+DECLARE_EVENT_CLASS(hda_power,
+
+	TP_PROTO(struct hda_codec *codec),
+
+	TP_ARGS(codec),
+
+	TP_STRUCT__entry(
+		__field( unsigned int, card )
+		__field( unsigned int, addr )
+	),
+
+	TP_fast_assign(
+		__entry->card = (codec)->bus->card->number;
+		__entry->addr = (codec)->addr;
+	),
+
+	TP_printk("[%d:%d]", __entry->card, __entry->addr)
+);
+
+DEFINE_EVENT(hda_power, hda_power_down,
+	TP_PROTO(struct hda_codec *codec),
+	TP_ARGS(codec)
+);
+
+DEFINE_EVENT(hda_power, hda_power_up,
+	TP_PROTO(struct hda_codec *codec),
+	TP_ARGS(codec)
+);
+
+#endif /* _TRACE_HDA_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#include <trace/define_trace.h>