[PATCH 03/20] media: iris: Add handling for corrupt and drop frames

[Dikshita Agarwal]

Firmware attach DATACORRUPT/DROP buffer flags for the frames which
needs to be dropped, handle it by setting VB2_BUF_STATE_ERROR for these
buffers before calling buf_done.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
Signed-off-by: Dikshita Agarwal <quic_dikshita@xxxxxxxxxxx>
---
 drivers/media/platform/qcom/iris/iris_buffer.c            | 11 ++++++++---
 drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h  |  2 ++
 drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c |  6 ++++++
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/iris_buffer.c b/drivers/media/platform/qcom/iris/iris_buffer.c
index 75fe63cc2327..8ae1f791d943 100644
--- a/drivers/media/platform/qcom/iris/iris_buffer.c
+++ b/drivers/media/platform/qcom/iris/iris_buffer.c
@@ -600,10 +600,13 @@ int iris_vb2_buffer_done(struct iris_inst *inst, struct iris_buffer *buf)
 
 	vb2 = &vbuf->vb2_buf;
 
-	if (buf->flags & V4L2_BUF_FLAG_ERROR)
+	if (buf->flags & V4L2_BUF_FLAG_ERROR) {
 		state = VB2_BUF_STATE_ERROR;
-	else
-		state = VB2_BUF_STATE_DONE;
+		vb2_set_plane_payload(vb2, 0, 0);
+		vb2->timestamp = 0;
+		v4l2_m2m_buf_done(vbuf, state);
+		return 0;
+	}
 
 	vbuf->flags |= buf->flags;
 
@@ -623,6 +626,8 @@ int iris_vb2_buffer_done(struct iris_inst *inst, struct iris_buffer *buf)
 			v4l2_m2m_mark_stopped(m2m_ctx);
 		}
 	}
+
+	state = VB2_BUF_STATE_DONE;
 	vb2->timestamp = buf->timestamp;
 	v4l2_m2m_buf_done(vbuf, state);
 
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h b/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h
index 9f246816a286..93b5f838c290 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h
@@ -117,6 +117,8 @@
 #define HFI_FRAME_NOTCODED				0x7f002000
 #define HFI_FRAME_YUV					0x7f004000
 #define HFI_UNUSED_PICT					0x10000000
+#define HFI_BUFFERFLAG_DATACORRUPT			0x00000008
+#define HFI_BUFFERFLAG_DROP_FRAME			0x20000000
 
 struct hfi_pkt_hdr {
 	u32 size;
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
index b72d503dd740..91d95eed68aa 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
@@ -481,6 +481,12 @@ static void iris_hfi_gen1_session_ftb_done(struct iris_inst *inst, void *packet)
 	buf->attr |= BUF_ATTR_DEQUEUED;
 	buf->attr |= BUF_ATTR_BUFFER_DONE;
 
+	if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
+		flags |= V4L2_BUF_FLAG_ERROR;
+
+	if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME)
+		flags |= V4L2_BUF_FLAG_ERROR;
+
 	buf->flags |= flags;
 
 	iris_vb2_buffer_done(inst, buf);

-- 
2.34.1