media: amphion: handle picture skipped event

For some invalid frames,
especially multiple consecutive invalid frames,
they all can't be decoded,
then the firmware can send picture skipped event
to notify driver that some frames are invalid,
driver can return them with error flag.

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/amphion/vpu_defs.h

@@ -69,8 +69,8 @@ enum {
 	VPU_MSG_ID_BS_ERROR,
 	VPU_MSG_ID_UNSUPPORTED,
 	VPU_MSG_ID_TIMESTAMP_INFO,
-
 	VPU_MSG_ID_FIRMWARE_XCPT,
+	VPU_MSG_ID_PIC_SKIPPED,
 };
 
 enum VPU_ENC_MEMORY_RESOURSE {

drivers/media/platform/amphion/vpu_malone.c

@@ -170,6 +170,7 @@ enum {
 	VID_API_EVENT_DEC_CHECK_RES		= 0x24,
 	VID_API_EVENT_DEC_CFG_INFO		= 0x25,
 	VID_API_EVENT_UNSUPPORTED_STREAM	= 0x26,
+	VID_API_EVENT_PIC_SKIPPED		= 0x27,
 	VID_API_EVENT_STR_SUSPENDED		= 0x30,
 	VID_API_EVENT_SNAPSHOT_DONE		= 0x40,
 	VID_API_EVENT_FW_STATUS                 = 0xF0,
@@ -703,6 +704,7 @@ static struct vpu_pair malone_msgs[] = {
 	{VPU_MSG_ID_BS_ERROR, VID_API_EVENT_BS_ERROR},
 	{VPU_MSG_ID_UNSUPPORTED, VID_API_EVENT_UNSUPPORTED_STREAM},
 	{VPU_MSG_ID_FIRMWARE_XCPT, VID_API_EVENT_FIRMWARE_XCPT},
+	{VPU_MSG_ID_PIC_SKIPPED, VID_API_EVENT_PIC_SKIPPED},
 };
 
 static void vpu_malone_pack_fs_alloc(struct vpu_rpc_event *pkt,

drivers/media/platform/amphion/vpu_msgs.c

@@ -166,6 +166,13 @@ static void vpu_session_handle_firmware_xcpt(struct vpu_inst *inst, struct vpu_r
 	vpu_v4l2_set_error(inst);
 }
 
+static void vpu_session_handle_pic_skipped(struct vpu_inst *inst, struct vpu_rpc_event *pkt)
+{
+	vpu_inst_lock(inst);
+	vpu_skip_frame(inst, 1);
+	vpu_inst_unlock(inst);
+}
+
 static struct vpu_msg_handler handlers[] = {
 	{VPU_MSG_ID_START_DONE, vpu_session_handle_start_done},
 	{VPU_MSG_ID_STOP_DONE, vpu_session_handle_stop_done},
@@ -181,6 +188,7 @@ static struct vpu_msg_handler handlers[] = {
 	{VPU_MSG_ID_PIC_EOS, vpu_session_handle_eos},
 	{VPU_MSG_ID_UNSUPPORTED, vpu_session_handle_error},
 	{VPU_MSG_ID_FIRMWARE_XCPT, vpu_session_handle_firmware_xcpt},
+	{VPU_MSG_ID_PIC_SKIPPED, vpu_session_handle_pic_skipped},
 };
 
 static int vpu_session_handle_msg(struct vpu_inst *inst, struct vpu_rpc_event *msg)