[PATCH v3] media: venus: add support for key frame

[Malathi Gottam]

When client requests for a keyframe, set the property
to hardware to generate the sync frame.

Signed-off-by: Malathi Gottam <mgot...@codeaurora.org>
---
 drivers/media/platform/qcom/venus/venc_ctrls.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c 
b/drivers/media/platform/qcom/venus/venc_ctrls.c
index 45910172..59fe7fc 100644
--- a/drivers/media/platform/qcom/venus/venc_ctrls.c
+++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
@@ -79,8 +79,10 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
 {
        struct venus_inst *inst = ctrl_to_inst(ctrl);
        struct venc_controls *ctr = &inst->controls.enc;
+       struct hfi_enable en = { .enable = 1 };
        u32 bframes;
        int ret;
+       u32 ptype;
 
        switch (ctrl->id) {
        case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
@@ -173,6 +175,19 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
 
                ctr->num_b_frames = bframes;
                break;
+       case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
+               mutex_lock(&inst->lock);
+               if (inst->streamon_out && inst->streamon_cap) {
+                       ptype = HFI_PROPERTY_CONFIG_VENC_REQUEST_SYNC_FRAME;
+                       ret = hfi_session_set_property(inst, ptype, &en);
+
+                       if (ret) {
+                               mutex_unlock(&inst->lock);
+                               return ret;
+                       }
+               }
+               mutex_unlock(&inst->lock);
+               break;
        default:
                return -EINVAL;
        }
@@ -188,7 +203,7 @@ int venc_ctrl_init(struct venus_inst *inst)
 {
        int ret;
 
-       ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 27);
+       ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 28);
        if (ret)
                return ret;
 
@@ -309,6 +324,9 @@ int venc_ctrl_init(struct venus_inst *inst)
        v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_H264_I_PERIOD, 0, (1 << 16) - 1, 1, 0);
 
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME, 0, 0, 0, 0);
+
        ret = inst->ctrl_handler.error;
        if (ret)
                goto err;
-- 
1.9.1