On 7.12.2020 18:43, Chen-Yu Tsai wrote: On Mon, Dec 7, 2020 at 11:34 PM Faruk KILAVUZ <[email protected]><mailto:[email protected]> 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. UUnfortunately /dev/media1 does not exist. This steps is not enough enable to 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 [email protected]<mailto:[email protected]>. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/e3ce9be6d0044f17a7585a31ac8156d5%40genemek.com. 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 [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/504af08b6cb84ff39869c30d050002c5%40genemek.com.
