ALSA: hda - Re-add tracepoints to HD-audio core driver

Now let's take the basic tracepoints back to the HD-audio driver.
The three bus tracepoints, hda_send_cmd, hda_get_response and
hda_unsol_event are revived but in a slightly different form.
Since we don't assign the card number there, print the bus device name
instead.

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

1 files changed, 6 insertions, 1 deletions

diff --git a/sound/hda/hdac_bus.c b/sound/hda/hdac_bus.c
index 364f64c0e4a3..8e262da74f6a 100644
--- a/sound/hda/hdac_bus.c
+++ b/sound/hda/hdac_bus.c
@@ -7,6 +7,7 @@
 #include <linux/module.h>
 #include <linux/export.h>
 #include <sound/hdaudio.h>
+#include "trace.h"
 
 static void process_unsol_events(struct work_struct *work);
 
@@ -82,6 +83,7 @@ int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr,
         else if (bus->sync_write)
                 res = &tmp;
         for (;;) {
+                trace_hda_send_cmd(bus, cmd);
                 err = bus->ops->command(bus, cmd);
                 if (err != -EAGAIN)
                         break;
@@ -90,8 +92,10 @@ int snd_hdac_bus_exec_verb_unlocked(struct hdac_bus *bus, unsigned int addr,
                 if (err)
                         break;
         }
-        if (!err && res)
+        if (!err && res) {
                 err = bus->ops->get_response(bus, addr, res);
+                trace_hda_get_response(bus, addr, *res);
+        }
         return err;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_bus_exec_verb_unlocked);
@@ -113,6 +117,7 @@ void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex)
         if (!bus)
                 return;
 
+        trace_hda_unsol_event(bus, res, res_ex);
         wp = (bus->unsol_wp + 1) % HDA_UNSOL_QUEUE_SIZE;
         bus->unsol_wp = wp;