ALSA: hda - Add basic tracepoints
Add a few tracepoints to HD-audio driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 3e7850c..e105b65 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -34,6 +34,9 @@
#include "hda_beep.h"
#include <sound/hda_hwdep.h>
+#define CREATE_TRACE_POINTS
+#include "hda_trace.h"
+
/*
* vendor / preset table
*/
@@ -208,15 +211,19 @@
again:
snd_hda_power_up(codec);
mutex_lock(&bus->cmd_mutex);
+ trace_hda_send_cmd(codec, cmd);
err = bus->ops.command(bus, cmd);
- if (!err && res)
+ if (!err && res) {
*res = bus->ops.get_response(bus, codec->addr);
+ trace_hda_get_response(codec, *res);
+ }
mutex_unlock(&bus->cmd_mutex);
snd_hda_power_down(codec);
if (res && *res == -1 && bus->rirb_error) {
if (bus->response_reset) {
snd_printd("hda_codec: resetting BUS due to "
"fatal communication error\n");
+ trace_hda_bus_reset(bus);
bus->ops.bus_reset(bus);
}
goto again;
@@ -4083,6 +4090,7 @@
return;
}
+ trace_hda_power_down(codec);
hda_call_codec_suspend(codec);
if (bus->ops.pm_notify)
bus->ops.pm_notify(bus);
@@ -4121,6 +4129,7 @@
if (codec->power_on || codec->power_transition)
return;
+ trace_hda_power_up(codec);
snd_hda_update_power_acct(codec);
codec->power_on = 1;
codec->power_jiffies = jiffies;