[Sound-open-firmware] [PATCH] platform: add trace code for debug

[Wu Zhigang]

1. add the trace code for easy to debug the case:
when the xrun happen in capture/playback working at the same time.
we could confirm the xrun's direction easily.
2. fix typo error in mixer.

Signed-off-by: Wu Zhigang <zhigang.wu at linux.intel.com>

---
test with:
apl-gpmrb with tdf8532 codec

linux topic/sof-dev: 0d51a5ed28c5
sof master:          48d2a1c551d7
soft master:         2cc3ad2a9287

pass the regression test:
Minnowboard Turbo
UP^2
CNL-RVP
---
 src/audio/mixer.c  | 2 +-
 src/audio/src.c    | 4 ++++
 src/audio/volume.c | 4 ++++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/audio/mixer.c b/src/audio/mixer.c
index ac6b7f9..3ddea0a 100644
--- a/src/audio/mixer.c
+++ b/src/audio/mixer.c
@@ -255,7 +255,7 @@ static int mixer_copy(struct comp_dev *dev)
 			comp_underrun(dev, sources[i], sources[i]->avail,
 				md->period_bytes);
 		} else if (res > 0) {
-			trace_mixer_error("xru");
+			trace_mixer_error("xro");
 			comp_overrun(dev, sources[i], sink->free,
 				md->period_bytes);
 		}
diff --git a/src/audio/src.c b/src/audio/src.c
index c19828a..e641874 100644
--- a/src/audio/src.c
+++ b/src/audio/src.c
@@ -800,10 +800,14 @@ static int src_copy(struct comp_dev *dev)
 	 */
 	if (source->avail < need_source) {
 		trace_src_error("xru");
+		trace_error_value(source->source->comp.type);
+		trace_error_value(sink->sink->comp.type);
 		return -EIO;	/* xrun */
 	}
 	if (sink->free < need_sink) {
 		trace_src_error("xro");
+		trace_error_value(source->source->comp.type);
+		trace_error_value(sink->sink->comp.type);
 		return -EIO;	/* xrun */
 	}
 
diff --git a/src/audio/volume.c b/src/audio/volume.c
index 9e2968d..a9efbaf 100644
--- a/src/audio/volume.c
+++ b/src/audio/volume.c
@@ -356,11 +356,15 @@ static int volume_copy(struct comp_dev *dev)
 	 */
 	if (source->avail < cd->source_period_bytes) {
 		trace_volume_error("xru");
+		trace_error_value(source->source->comp.type);
+		trace_error_value(sink->sink->comp.type);
 		comp_underrun(dev, source, cd->source_period_bytes, 0);
 		return -EIO;	/* xrun */
 	}
 	if (sink->free < cd->sink_period_bytes) {
 		trace_volume_error("xro");
+		trace_error_value(source->source->comp.type);
+		trace_error_value(sink->sink->comp.type);
 		comp_overrun(dev, sink, cd->sink_period_bytes, 0);
 		return -EIO;	/* xrun */
 	}
-- 
2.17.1