-
软件环境:
. jetpak : 5.0.2 -
硬件环境:
. xaiver nx, yuv sensor(with isp) -
问题现像:
v4l2-ctl --set-fmt-video=width=2160,height=1280,pixelformat=UYVY --stream-mmap --stream-count=1 -d /dev/video0 --stream-to=x.raw
[ 1285.880475] tegra-camrtc-capture-vi tegra-capture-vi: corr_err: discarding frame 44340, flags: 0, err_data 32
[ 1288.415887] tegra-camrtc-capture-vi tegra-capture-vi: uncorr_err: request timed out after 2500 ms
[ 1288.416134] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: attempting to reset the capture channel
4.设备树如下:
/ {
tegra-capture-vi {
num-channels = <1>;
ports {
#address-cells = <1>;
#size-cells = <0>;
vi_port0: port@0 {
reg = <0>;
xc9080_vi_in0: endpoint {
port-index = <0>;
bus-width = <2>;
remote-endpoint = <&xc9080_csi_out0>;
};
};
};
};
i2c@3180000 {
xc9080_a@1b {
compatible = "nvidia,xc9080";
/* I2C device address */
reg = <0x1b>;
/* V4L2 device node location */
devnode = "video0";
/* Physical dimensions of sensor */
physical_w = "3.680";
physical_h = "2.760";
sensor_model = "xc9080";
use_sensor_mode_id = "true";
/**
* ==== Modes ====
* A modeX node is required to support v4l2 driver
* implementation with NVIDIA camera software stack
*
* == Signal properties ==
*
* phy_mode = "";
* PHY mode used by the MIPI lanes for this device
*
* tegra_sinterface = "";
* CSI Serial interface connected to tegra
* Incase of virtual HW devices, use virtual
* For SW emulated devices, use host
*
* pix_clk_hz = "";
* Sensor pixel clock used for calculations like exposure and framerate
*
* readout_orientation = "0";
* Based on camera module orientation.
* Only change readout_orientation if you specifically
* Program a different readout order for this mode
*
* == Image format Properties ==
*
* active_w = "";
* Pixel active region width
*
* active_h = "";
* Pixel active region height
*
* pixel_t = "";
* The sensor readout pixel pattern
*
* line_length = "";
* Pixel line length (width) for sensor mode.
*
* == Source Control Settings ==
*
* Gain factor used to convert fixed point integer to float
* Gain range [min_gain/gain_factor, max_gain/gain_factor]
* Gain step [step_gain/gain_factor is the smallest step that can be configured]
* Default gain [Default gain to be initialized for the control.
* use min_gain_val as default for optimal results]
* Framerate factor used to convert fixed point integer to float
* Framerate range [min_framerate/framerate_factor, max_framerate/framerate_factor]
* Framerate step [step_framerate/framerate_factor is the smallest step that can be configured]
* Default Framerate [Default framerate to be initialized for the control.
* use max_framerate to get required performance]
* Exposure factor used to convert fixed point integer to float
* For convenience use 1 sec = 1000000us as conversion factor
* Exposure range [min_exp_time/exposure_factor, max_exp_time/exposure_factor]
* Exposure step [step_exp_time/exposure_factor is the smallest step that can be configured]
* Default Exposure Time [Default exposure to be initialized for the control.
* Set default exposure based on the default_framerate for optimal exposure settings]
*
* gain_factor = ""; (integer factor used for floating to fixed point conversion)
* min_gain_val = ""; (ceil to integer)
* max_gain_val = ""; (ceil to integer)
* step_gain_val = ""; (ceil to integer)
* default_gain = ""; (ceil to integer)
* Gain limits for mode
*
* exposure_factor = ""; (integer factor used for floating to fixed point conversion)
* min_exp_time = ""; (ceil to integer)
* max_exp_time = ""; (ceil to integer)
* step_exp_time = ""; (ceil to integer)
* default_exp_time = ""; (ceil to integer)
* Exposure Time limits for mode (sec)
*
* framerate_factor = ""; (integer factor used for floating to fixed point conversion)
* min_framerate = ""; (ceil to integer)
* max_framerate = ""; (ceil to integer)
* step_framerate = ""; (ceil to integer)
* default_framerate = ""; (ceil to integer)
* Framerate limits for mode (fps)
*
* embedded_metadata_height = "";
* Sensor embedded metadata height in units of rows.
* If sensor does not support embedded metadata value should be 0.
*/
mode0 { /* xc9080_MODE_2560x1280_30FPS */
mclk_khz = "24000";
num_lanes = "2";
tegra_sinterface = "serial_a";
phy_mode = "DPHY";
discontinuous_clk = "no";
dpcm_enable = "false";
cil_settletime = "0";
active_w = "2160";
active_h = "1280";
mode_type = "yuv";
pixel_phase = "uyvy";
csi_pixel_bit_depth = "16";
readout_orientation = "0";
line_length = "2540";
inherent_gain = "1";
mclk_multiplier = "9.33";
pix_clk_hz = "74250000";
gain_factor = "16";
framerate_factor = "1000000";
exposure_factor = "1000000";
min_gain_val = "16"; /* 1.00x */
max_gain_val = "170"; /* 10.66x */
step_gain_val = "1";
default_gain = "16"; /* 1.00x */
min_hdr_ratio = "1";
max_hdr_ratio = "1";
min_framerate = "30000000"; /* 2.0 fps */
max_framerate = "30000000"; /* 21.0 fps */
step_framerate = "1";
default_framerate = "30000000"; /* 21.0 fps */
min_exp_time = "13"; /* us */
max_exp_time = "683709"; /* us */
step_exp_time = "1";
default_exp_time = "2495"; /* us */
embedded_metadata_height = "2";
};
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
xc9080_out0: endpoint {
port-index = <0>;
bus-width = <2>;
remote-endpoint = <&xc9080_csi_in0>;
};
};
};
};
- 调试过程:
a. 设备驱动可以正常初始化sensor(with isp), 初始化参数是原厂验证过的寄存器配置, 从示波器看似乎是正常的.但vi采集不到数据.
b. media-ctl -p
Media controller API version 5.10.104
Media device information
driver tegra-camrtc-ca
model NVIDIA Tegra Video Input Device
serial
bus info
hw revision 0x3
driver version 5.10.104
Device topology
-
entity 1: 13e10000.host1x:nvcsi@15a00000- (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev0
pad0: Sink
← “xc9080 2-001b”:0 [ENABLED]
pad1: Source
→ “vi-output, xc9080 2-001b”:0 [ENABLED] -
entity 4: xc9080 2-001b (1 pad, 1 link)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev1
pad0: Source
[fmt:UYVY8_1X16/2160x1280 field:none colorspace:srgb]
→ “13e10000.host1x:nvcsi@15a00000-”:0 [ENABLED] -
entity 6: vi-output, xc9080 2-001b (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
← “13e10000.host1x:nvcsi@15a00000-”:1 [ENABLED]v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture
[0]: 'UYVY' (UYVY 4:2:2)
Size: Discrete 2160x1280
Interval: Discrete 0.033s (30.000 fps)
[1]: 'NV16' (Y/CbCr 4:2:2)
Size: Discrete 2160x1280
Interval: Discrete 0.033s (30.000 fps)
[2]: 'UYVY' (UYVY 4:2:2)
Size: Discrete 2160x1280
Interval: Discrete 0.033s (30.000 fps)
- 问题
a. 请问设备树是否有配置错?
b. 关于mipi 接收还有什么其它调试手段