On Mon, Dec 7, 2020 at 11:34 PM Faruk KILAVUZ <faruk.kila...@genemek.com> wrote: > > Hello > I am working on OV5640 with Allwinner A64 chip. I followed the steps at > https://linux-sunxi.org/CSI. I used kernel 5.10-rc6 and I compiled buildroot. > I tried to explain what I do step by step. > > 1- I activated this packages on kernel configuration; > VIDEO_DEV = y > MEDIA_CONTROLLER = y > VIDEO_V4L2_SUBDEV_API = y > V4L_PLATFORM_DRIVERS = y > VIDEO_SUN6I_CSI = m > VIDEO_OV5640 = m > > Also I enabled media-ctl and v4l2-ctl package on busybox. > > > 2- I added i2c-csi and &csi node. Nodes are same as those used in pinetab. > > i2c-csi { > compatible = "i2c-gpio"; > sda-gpios = <&pio 4 13 GPIO_ACTIVE_HIGH>; /* PE13 */ > scl-gpios = <&pio 4 12 GPIO_ACTIVE_HIGH>; /* PE12 */ > i2c-gpio,delay-us = <5>; > #address-cells = <1>; > #size-cells = <0>; > > /* Rear camera */ > ov5640: camera@3c { > compatible = "ovti,ov5640"; > reg = <0x3c>; > pinctrl-names = "default"; > pinctrl-0 = <&csi_mclk_pin>; > clocks = <&ccu CLK_CSI_MCLK>; > clock-names = "xclk"; > > AVDD-supply = <®_dldo3>; > DOVDD-supply = <®_aldo1>; > DVDD-supply = <®_eldo3>; > reset-gpios = <&pio 4 14 GPIO_ACTIVE_LOW>; /* PE14 */ > powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>; /* > PE15 */ > > port { > ov5640_ep: endpoint { > remote-endpoint = <&csi_ep>; > bus-width = <8>; > hsync-active = <1>; /* Active high */ > vsync-active = <0>; /* Active low */ > data-active = <1>; /* Active high */ > pclk-sample = <1>; /* Rising */ > }; > }; > }; > }; > > and > > &csi { > > status = "okay"; > > port { > csi_ep: endpoint { > remote-endpoint = <&ov5640_ep>; > bus-width = <8>; > hsync-active = <1>; /* Active high */ > vsync-active = <0>; /* Active low */ > data-active = <1>; /* Active high */ > pclk-sample = <1>; /* Rising */ > }; > }; > }; > > 3- lsmod results: > > Module Size Used by Not tainted > sr9700 20480 0 > dm9601 20480 0 > usbnet 40960 2 sr9700,dm9601 > snd_soc_simple_card 24576 0 > sun50i_codec_analog 32768 0 > snd_soc_simple_card_utils 24576 1 snd_soc_simple_card > sun8i_codec 32768 0 > sun8i_adda_pr_regmap 16384 1 sun50i_codec_analog > sun4i_i2s 24576 0 > snd_soc_core 159744 5 > snd_soc_simple_card,sun50i_codec_analog,snd_soc_simple_card_utils,sun8i_codec,sun4i_i2s > axp20x_adc 20480 0 > snd_pcm_dmaengine 20480 1 snd_soc_core > axp20x_usb_power 16384 0 > axp20x_ac_power 16384 0 > axp20x_battery 16384 0 > pinctrl_axp209 16384 2 > industrialio 65536 4 > axp20x_adc,axp20x_usb_power,axp20x_ac_power,axp20x_battery > snd_pcm 106496 4 > sun8i_codec,sun4i_i2s,snd_soc_core,snd_pcm_dmaengine > i2c_mv64xxx 24576 0 > sun6i_csi 36864 0 > snd_timer 40960 1 snd_pcm > lima 57344 0 > snd 65536 3 snd_soc_core,snd_pcm,snd_timer > gpu_sched 28672 1 lima > soundcore 16384 1 snd > pwm_sun4i 20480 1 > sun8i_ce 28672 0 > crypto_engine 20480 1 sun8i_ce > sun4i_drm 20480 1 > sun8i_mixer 40960 0 > ov5640 28672 0 > v4l2_fwnode 24576 2 sun6i_csi,ov5640 > panel_lvds 16384 0 > sun4i_frontend 16384 1 sun4i_drm > pwm_bl 20480 0 > sun4i_tcon 36864 1 sun4i_drm > sun8i_tcon_top 20480 2 sun4i_drm,sun4i_tcon > cpufreq_dt 20480 0 > > 4- media-ctl --print-topology result: > > Media controller API version 5.10.0 > > Media device information > ------------------------ > driver cedrus > model cedrus > serial > bus info platform:cedrus > hw revision 0x0 > driver version 5.10.0 > > Device topology > - entity 1: cedrus-source (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video0 > pad0: Source > -> "cedrus-proc":0 [ENABLED,IMMUTABLE] > > - entity 3: cedrus-proc (2 pads, 2 links) > type Node subtype Unknown flags 0 > pad0: Sink > <- "cedrus-source":0 [ENABLED,IMMUTABLE] > pad1: Source > -> "cedrus-sink":0 [ENABLED,IMMUTABLE] > > - entity 6: cedrus-sink (1 pad, 1 link) > type Node subtype V4L flags 0 > device node name /dev/video0 > pad0: Sink > <- "cedrus-proc":1 [ENABLED,IMMUTABLE] >
media-ctl takes a '-d device' argument that you can use to specify another media controller. Looks like on your system /dev/media0 is cedrus, so /dev/media1 (if it exists, which it should) would be CSI. > But according to linux-sunxi.com/CSI page, driver name should be sun6i_csi. > Even if I disable the cedrus package on kernel and recompile, the result is > always the same. Now how could that be? If you disabled cedrus then media-ctl would not report cedrus, unless of course you did not actually remove the module file and it got loaded despite you disabling it in the kernel config. ChenYu > As a result I did not get any images with the camera. How can I operate the > camera. Do you have any suggestions on this matter? > > > Thanks your timing. > Best Regards > > Faruk KILAVUZ > > -- > You received this message because you are subscribed to the Google Groups > "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to linux-sunxi+unsubscr...@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/linux-sunxi/e3ce9be6d0044f17a7585a31ac8156d5%40genemek.com. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/CAGb2v644ofBHVf-Z9cto2MHjuaYJ-UZ6NbqMDV249TfAdyvSWQ%40mail.gmail.com.
