[media] coda: Add tracing support
This patch adds tracepoints to the coda driver that can be used together
with the v4l2:v4l2_qbuf and v4l2:v4l2_dqbuf tracepoints to to follow video
frames through the mem2mem device.
For encoding with the BIT processor:
coda:coda_enc_pic_run
coda:coda_enc_pic_done
For decoding with the BIT processor:
coda:coda_bit_queue
coda:coda_dec_pic_run
coda:coda_dec_pic_done
coda:coda_dec_rot_done
Additionally, two low level tracepoints register whenever the BIT processor
is started and returns:
coda:coda_bit_run
coda:coda_bit_done
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h
index 970f0b3..6a5c8f6 100644
--- a/drivers/media/platform/coda/coda.h
+++ b/drivers/media/platform/coda/coda.h
@@ -12,6 +12,9 @@
* (at your option) any later version.
*/
+#ifndef __CODA_H__
+#define __CODA_H__
+
#include <linux/debugfs.h>
#include <linux/irqreturn.h>
#include <linux/mutex.h>
@@ -294,3 +297,5 @@
extern const struct coda_context_ops coda_bit_decode_ops;
irqreturn_t coda_irq_handler(int irq, void *data);
+
+#endif /* __CODA_H__ */