Hello NVIDIA Developers,
I would like to be able to use a Jetson Xavier NX running L4T 32.7.1 to read a 2-lane MIPI CSI-2 without I2C from a Xilinx FGPA. The video is 1920 x 1080, 30fps, YUV422, similar to what is discussed in these forum threads:
jetson-xavier-nx-mipi-csi-2-without-i2c-from-fpga
After referring to relevant examples, I have modified the ov5693 device tree file and successfully created/dev/video0, but I still cannot capture images. The process is as follows：
1.modified the ov5693 device tree file
/ {
host1x {
vi@15c10000 {
num-channels = <1>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
e3326_vi_in0: endpoint {
port-index = <0>;
bus-width = <2>;
remote-endpoint = <&e3326_csi_out0>;
};
};
};
};
nvcsi@15a00000 {
num-channels = <1>;
#address-cells = <1>;
#size-cells = <0>;
status = "okay"; //
channel@0 {
reg = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
e3326_csi_in0: endpoint@0 {
port-index = <0>;
bus-width = <2>;
remote-endpoint = <&e3326_ov5693_out0>;
};
};
port@1 {
reg = <1>;
e3326_csi_out0: endpoint@1 {
remote-endpoint = <&e3326_vi_in0>;
};
};
};
};
};
};
i2c@3180000 {
ov5693_c@36 {
compatible = "nvidia,ov5693";
/* I2C device address */
reg = <0x36>;
/* V4L2 device node location */
devnode = "video0";
/* Physical dimensions of sensor */
physical_w = "3.674";
physical_h = "2.738";
/* Define any required hw resources needed by driver */
/* ie. clocks, io pins, power sources */
// avdd-reg = "vana"; //modified
// iovdd-reg = "vif";
/* Sensor output flip settings */
vertical-flip = "true";
/* Enable EEPROM support */
has-eeprom = "0"; //1
mode0 { // OV5693_MODE_1920X1080
mclk_khz = "24000";
num_lanes = "2";
tegra_sinterface = "serial_c";
phy_mode = "DPHY";
discontinuous_clk = "yes";
dpcm_enable = "false";
cil_settletime = "0";
active_w = "1920";
active_h = "1080";
pixel_t = "yuv_yuyv16";
readout_orientation = "0";
line_length = "2688";
inherent_gain = "1";
mclk_multiplier = "6.67";
pix_clk_hz = "160000000";
gain_factor = "10";
min_gain_val = "10";/* 1DB*/
max_gain_val = "160";/* 16DB*/
step_gain_val = "1";
default_gain = "10";
min_hdr_ratio = "1";
max_hdr_ratio = "1";
framerate_factor = "1000000";
min_framerate = "1816577";/*1.816577 */
max_framerate = "30000000";/*30*/
step_framerate = "1";
default_framerate = "30000000";
exposure_factor = "1000000";
min_exp_time = "34";/* us */
max_exp_time = "550385";/* us */
step_exp_time = "1";
default_exp_time = "33334";/* us */
embedded_metadata_height = "0";
};
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
e3326_ov5693_out0: endpoint {
port-index = <0>;
bus-width = <2>;
remote-endpoint = <&e3326_csi_in0>;
};
};
};
};
};
e3326_lens_ov5693@P5V27C {
min_focus_distance = "0.0";
hyper_focal = "0.0";
focal_length = "2.67";
f_number = "2.0";
aperture = "2.0";
};
tegra-camera-platform {
compatible = "nvidia, tegra-camera-platform";
num_csi_lanes = <2>;
max_lane_speed = <1500000>;
min_bits_per_pixel = <8>;
vi_peak_byte_per_pixel = <2>;
vi_bw_margin_pct = <25>;
max_pixel_rate = <160000>;
isp_peak_byte_per_pixel = <5>;
isp_bw_margin_pct = <25>;
modules {
module0 {
badge = "e3326_front_P5V27C";
position = "rear";
orientation = "1";
drivernode0 {
/* Declare PCL support driver (classically known as guid) */
pcl_id = "v4l2_sensor";
/* Driver v4l2 device name */
devname = "ov5693 2-0036";
/* Declare the device-tree hierarchy to driver instance */
proc-device-tree = "/proc/device-tree/i2c@3180000/ov5693_c@36";
};
drivernode1 {
/* Declare PCL support driver (classically known as guid) */
pcl_id = "v4l2_lens";
proc-device-tree = "/proc/device-tree/e3326_lens_ov5693@P5V27C/";
};
};
};
};
};
2.Modified the driver files ov5693.c and ov5693_mode_tbls.h to ignore the I2C、reset/pwdn gpio and TEGRA_CAMERA_CID_GROUP_HOLD part.
ov5693.c (14.5 KB)
ov5693_mode_tbls.h (1.3 KB)
3.Compiled the kernel, Flashed the board.
Tested the data capture,
$ v4l2-ctl -d /dev/video0 --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUYV 4:2:2
Size: Discrete 1920x1080
Interval: Discrete 0.033s (30.000 fps)
Index : 1
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUYV 4:2:2
Size: Discrete 1920x1080
Interval: Discrete 0.033s (30.000 fps)
$ v4l2-ctl -d /dev/video0 --set-fmt-video=width=1920,height=1080,pixelformat=YUYV --stream-mmap --stream-count=1 --stream-to=test.raw --verbose
Some errors occurred：
VIDIOC_QUERYCAP: ok
VIDIOC_G_FMT: ok
VIDIOC_S_FMT: ok
Format Video Capture:
Width/Height : 1920/1080
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 3840
Size Image : 4147200
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags :
VIDIOC_REQBUFS: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_STREAMON: ok
Index : 0
Type : Video Capture
Flags : mapped, error
Field : None
Sequence : 0
Length : 4147200
Bytesused: 4147200
Timestamp: 0.000000s (Monotonic, End-of-Frame)
Index : 0
Type : Video Capture
Flags : mapped, error
Field : None
Sequence : 0
Length : 4147200
Bytesused: 4147200
Timestamp: 0.000000s (Monotonic, End-of-Frame)
Index : 1
Type : Video Capture
Flags : mapped, error
Field : None
Sequence : 1
Length : 4147200
Bytesused: 4147200
Timestamp: 0.000000s (Monotonic, End-of-Frame)
Index : 2
Type : Video Capture
Flags : mapped, error
Field : None
Sequence : 2
Length : 4147200
Bytesused: 4147200
Timestamp: 0.000000s (Monotonic, End-of-Frame)
Index : 3
Type : Video Capture
Flags : mapped, error
Field : None
Sequence : 3
Length : 4147200
Bytesused: 4147200
Timestamp: 0.000000s (Monotonic, End-of-Frame)
dmesg got the following error:
[ 266.485096] [RCE] Configuring VI GoS.
[ 266.485145] [RCE] VM GOS[#0] addr=0xc2100000
[ 266.485157] [RCE] VM GOS[#1] addr=0xc2101000
[ 266.485168] [RCE] VM GOS[#2] addr=0xc2102000
[ 266.485180] [RCE] VM GOS[#3] addr=0xc2103000
[ 266.485191] [RCE] VM GOS[#4] addr=0xc2104000
[ 266.485202] [RCE] VM GOS[#5] addr=0xc2105000
[ 266.485217] [RCE] vi5_hwinit: firmware CL2018101701 protocol version 2.2
[ 266.485263] [RCE] VI GOS[#0] set to VM GOS[4] base 0xc2104000
[ 269.149052] tegra194-vi5 15c10000.vi: no reply from camera processor
[ 269.149211] tegra194-vi5 15c10000.vi: uncorr_err: request timed out after 2500 ms
[ 269.149381] tegra194-vi5 15c10000.vi: err_rec: attempting to reset the capture channel
[ 269.153169] tegra194-vi5 15c10000.vi: err_rec: successfully reset the capture channel
Here are some logs obtained：
dmesg.txt (84.4 KB)
trace_log.txt (130.5 KB)
This bothered me for several days. I tried to find solutions in the Jetson forum,Could you provide some inputs to debug further on this issue ?
Thanks,
Ice.
