[PATCH v7 00/34] i.MX Media Driver
Tim Harvey
tharvey at gateworks.com
Thu Jun 1 17:25:57 PDT 2017
On Wed, May 24, 2017 at 5:29 PM, Steve Longerbeam <slongerbeam at gmail.com> wrote:
> In version 7:
>
> - video-mux: switched to Philipp's latest video-mux driver and updated
> bindings docs, that makes use of the mmio-mux framework.
>
> - mmio-mux: includes Philipp's temporary patch that adds mmio-mux support
> to video-mux driver, until mux framework is merged.
>
> - mmio-mux: updates to device tree from Philipp that define the i.MX6 mux
> devices and modifies the video-mux device to become a consumer of the
> video mmio-mux.
>
> - minor updates to Documentation/media/v4l-drivers/imx.rst.
>
> - ov5640: do nothing if entity stream count is greater than 1 in
> ov5640_s_stream().
>
> - Previous versions of this driver had not tested the ability to enable
> multiple independent streams, for instance enabling multiple output
> pads from the imx6-mipi-csi2 subdevice, or enabling both prpenc and
> prpvf outputs. Marek Vasut tested this support and reported issues
> with it.
>
> v4l2_pipeline_inherit_controls() used the media graph walk APIs, but
> that walks both sink and source pads, so if there are multiple paths
> enabled to video capture devices, controls would be added to the wrong
> video capture device, and no controls added to the other enabled
> capture devices.
>
> These issues have been fixed. Control inheritance works correctly now
> even with multiple enabled capture paths, and (for example)
> simultaneous capture from prpenc and prpvf works also, and each with
> independent scaling, CSC, and controls. For example prpenc can be
> capturing with a 90 degree rotation, while prpvf is capturing with
> vertical flip.
>
> So the v4l2_pipeline_inherit_controls() patch has been dropped. The
> new version of control inheritance could be made generically available,
> but it would be more involved to incorporate it into v4l2-core.
>
> - A new function imx_media_fill_default_mbus_fields() is added to setup
> colorimetry at sink pads, and these are propagated to source pads.
>
> - Ensure that the current sink and source rectangles meet alignment
> restrictions before applying a new rotation control setting in
> prp-enc/vf subdevices.
>
> - Chain the s_stream() subdev calls instead of implementing a custom
> stream on/off function that attempts to call a fixed set of subdevices
> in a pipeline in the correct order. This also simplifies imx6-mipi-csi2
> subdevice, since the correct MIPI CSI-2 startup sequence can be
> enforced completely in s_stream(), and s_power() is no longer
> required. This also paves the way for more arbitrary OF graphs
> external to the i.MX6.
>
> - Converted the v4l2_subdev and media_entity ops structures to const.
>
Hi Steve,
I've applied adv7180 device-tree config for the Gateworks ventana
boards on top of your imx-media-staging-md-v15 github branch but am
not able to get it to work.
Here's my device-tree patch that adds adv7180 to the GW54xx connected
to IPU2_CSI1:
--- a/arch/arm/boot/dts/imx6q-gw54xx.dts
+++ b/arch/arm/boot/dts/imx6q-gw54xx.dts
@@ -18,6 +18,76 @@
compatible = "gw,imx6q-gw54xx", "gw,ventana", "fsl,imx6q";
};
+&i2c3 {
+ adv7180: camera at 20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 GPIO_ACTIVE_LOW>;
+ inputs = <0x00 0x01 0x02>;
+ input-names = "ADV7180 Composite on Ain1",
+ "ADV7180 Composite on Ain2",
+ "ADV7180 Composite on Ain3";
+
+ port {
+ adv7180_to_ipu2_csi1_mux: endpoint {
+ remote-endpoint =
<&ipu2_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu2_csi1_from_ipu2_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu2_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu2_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu2_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu2_csi1>;
+
+ /* enable frame interval monitor on this port */
+ fim {
+ status = "okay";
+ };
+};
+
&sata {
status = "okay";
};
+
+&iomuxc {
+ video {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30
0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31
0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu2_csi1: ipu2_csi1grp { /* IPU2_CSI1: 8-bit input */
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU2_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU2_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU2_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU2_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU2_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU2_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU2_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU2_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU2_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU2_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU2_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+ };
+};
+
Here's my userspace test commands:
media-ctl -r # reset all links
export outputfmt="UYVY2X8/720x480"
# Setup links (ADV7180 IPU2_CSI1)
media-ctl -l '"adv7180 2-0020":0 -> "ipu2_csi1_mux":1[1]'
media-ctl -l '"ipu2_csi1_mux":2 -> "ipu2_csi1":0[1]'
media-ctl -l '"ipu2_csi1":1 -> "ipu2_vdic":0[1]'
media-ctl -l '"ipu2_vdic":2 -> "ipu2_ic_prp":0[1]'
media-ctl -l '"ipu2_ic_prp":2 -> "ipu2_ic_prpvf":0[1]'
media-ctl -l '"ipu2_ic_prpvf":1 -> "ipu2_ic_prpvf capture":0[1]'
# Configure pads
media-ctl -V "'adv7180 2-0020':0 [fmt:UYVY2X8/720x480]"
media-ctl -V "'ipu2_csi1_mux':2 [fmt:UYVY2X8/720x480 field:interlaced]"
media-ctl -V "'ipu2_csi1':1 [fmt:UYVY2X8/720x480 field:interlaced]"
media-ctl -V "'ipu2_vdic':2 [fmt:UYVY2X8/720x480 field:none]"
media-ctl -V "'ipu2_ic_prp':2 [fmt:AYUV32/720x480 field:none]"
media-ctl -V "'ipu2_ic_prpvf':1 [fmt:$outputfmt field:none]"
^^^^ no errors up to this point; streaming can now begin on
'ipu2_ic_prpvf capture'
# select input
v4l2-ctl --device /dev/video3 -i0 # 0=AIN1 1=AIN2 2=AIN3
VIDIOC_S_INPUT: failed: Inappropriate ioctl for device
^^^^ /sys/class/video4linux/v4l-subdev2/name is 'ipu2_ic_prpvf
capture' - is this not right?
# select any supported YUV or RGB pixelformat on the capture device node
v4l2-ctl --device /dev/video3
--set-fmt-video=width=720,height=480,pixelformat=UYVY
v4l2-ctl --device /dev/video3 --stream-mmap --stream-to=/x.raw
--stream-count=1 # capture single raw-frame
[ 904.870444] ipu2_ic_prpvf: EOF timeout
VIDIOC_DQBUF: failed: Input/output error
[ 905.910702] ipu2_ic_prpvf: wait last EOF timeout
^^^^ not getting any frames
The last patchset of yours I had running on this board was your v3
patchset - any ideas?
As it looks like things have settled down with this patchset and it
sounds like it will get merged for 4.13 I'm going to start working on
a driver for the tda1997x HDMI receiver which is also on this board
connected to IPU1_CSI0.
Thanks,
Tim
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