From 62ce7201f442d667a31415c1b051ba385a994b63 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 9 Apr 2020 18:29:43 +0200 Subject: [PATCH] media: imx.rst: Provide an example for unprocessed video capture The current example for imx6q-sabresd is for a direct conversion pipeline. Provide an extra example using unprocessed video capture for completeness. Signed-off-by: Fabio Estevam Reviewed-by: Steve Longerbeam Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/admin-guide/media/imx.rst | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/admin-guide/media/imx.rst b/Documentation/admin-guide/media/imx.rst index 60f0425..e309d1a 100644 --- a/Documentation/admin-guide/media/imx.rst +++ b/Documentation/admin-guide/media/imx.rst @@ -589,6 +589,26 @@ CSI-2 OV5640 has been tested, so the OV5642 node is currently disabled. The OV5640 module connects to MIPI connector J5 (sorry I don't have the compatible module part number or URL). +The following example configures unprocessed video capture pipeline to +capture from the OV5640, transmitting on MIPI CSI-2 virtual channel 0: + +.. code-block:: none + + # Setup links + media-ctl -l "'ov5640 1-003c':0 -> 'imx6-mipi-csi2':0[1]" + media-ctl -l "'imx6-mipi-csi2':1 -> 'ipu1_csi0_mux':0[1]" + media-ctl -l "'ipu1_csi0_mux':2 -> 'ipu1_csi0':0[1]" + media-ctl -l "'ipu1_csi0':2 -> 'ipu1_csi0 capture':0[1]" + # Configure pads + media-ctl -V "'ov5640 1-003c':0 [fmt:UYVY2X8/640x480]" + media-ctl -V "'imx6-mipi-csi2':1 [fmt:UYVY2X8/640x480]" + media-ctl -V "'ipu1_csi0_mux':0 [fmt:UYVY2X8/640x480]" + media-ctl -V "'ipu1_csi0':0 [fmt:AYUV32/640x480]" + +Streaming can then begin on "ipu1_csi0 capture" node. The v4l2-ctl +tool can be used to select any supported pixelformat on the capture +device node. + The following example configures a direct conversion pipeline to capture from the OV5640, transmitting on MIPI CSI-2 virtual channel 0. It also shows colorspace conversion and scaling at IC output. -- 2.7.4