[PATCH v2 2/2] [media] s5p-mfc: Add support for resolution change event

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Pawel Osciak <posciak@xxxxxxxxxxxx>

When a resolution change point is reached, queue an event to signal the
userspace that a new set of buffers is required before decoding can
continue.

Signed-off-by: Pawel Osciak <posciak@xxxxxxxxxxxx>
Signed-off-by: Arun Kumar K <arun.kk@xxxxxxxxxxx>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c     |    6 ++++++
 drivers/media/platform/s5p-mfc/s5p_mfc_dec.c |    2 ++
 2 files changed, 8 insertions(+)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 4ee5a02..5152a23 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -308,6 +308,7 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
 	struct s5p_mfc_buf *src_buf;
 	unsigned long flags;
 	unsigned int res_change;
+	struct v4l2_event ev;
 
 	dst_frame_status = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_status, dev)
 				& S5P_FIMV_DEC_STATUS_DECODING_STATUS_MASK;
@@ -339,6 +340,11 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
 		if (ctx->state == MFCINST_RES_CHANGE_FLUSH) {
 			s5p_mfc_handle_frame_all_extracted(ctx);
 			ctx->state = MFCINST_RES_CHANGE_END;
+
+			memset(&ev, 0, sizeof(struct v4l2_event));
+			ev.type = V4L2_EVENT_SOURCE_CHANGE;
+			v4l2_event_queue_fh(&ctx->fh, &ev);
+
 			goto leave_handle_frame;
 		} else {
 			s5p_mfc_handle_frame_all_extracted(ctx);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
index 4586186..069d354 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
@@ -851,6 +851,8 @@ static int vidioc_subscribe_event(struct v4l2_fh *fh,
 	switch (sub->type) {
 	case V4L2_EVENT_EOS:
 		return v4l2_event_subscribe(fh, sub, 2, NULL);
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_event_subscribe(fh, sub, 2, NULL);
 	default:
 		return -EINVAL;
 	}
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux SoC Development]     [Linux Rockchip Development]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Linux SCSI]     [Yosemite News]

  Powered by Linux