Hello
-
硬件环境
a. xavier nx
b. camera x5 分别接到接到CSI0，CSI1，CSI2，CSI3，CSI5(csi_g) -
软件环境
jetpak 5.0.2有个问题想请教一下关于xavier nx csi g，我这边设备树如下：
//下视csi port chan
csi_chan3: channel@3 {
reg = <3>;
ports {
#address-cells = <1>;
#size-cells = <0>;
csi_chan3_port0: port@0 {
reg = <0>;
xc9080_csi_in3: endpoint@6 {
port-index = <6>;
bus-width = <2>;
remote-endpoint = <&xc9080_out3>;
};
};
csi_chan3_port1: port@1 {
reg = <1>;
xc9080_csi_out3: endpoint@7 {
remote-endpoint = <&xc9080_vi_in3>;
};
};
};
};
//下视 vi chan
vi_port3: port@3 {
reg = <3>;
xc9080_vi_in3: endpoint {
port-index = <5>;
bus-width = <2>;
remote-endpoint = <&xc9080_csi_out3>;
};
};
xc9080_d@1e {//下视
compatible = "nvidia,xc9080";
/* I2C device address */
reg = <0x1e>;
/* V4L2 device node location */
devnode = "video3";
/* 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_g";
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";
dynamic_pixel_bit_depth = "16";
readout_orientation = "0";
line_length = "2540";
inherent_gain = "1";
mclk_multiplier = "9.33";
pix_clk_hz = "120000000";
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 = "0";
};
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
xc9080_out3: endpoint {
status = "okay";
port-index = <6>;
bus-width = <2>;
remote-endpoint = <&xc9080_csi_in3>;
};
};
};
};
- 问题
a. 其中CSI0，CSI1，CSI2，CSI3都能采集到视频数据，但csi_g,也就是DSI这路采集不到数据，会是什么原因，我的设备树有没有配置错误 ？
b. CSI4 和CSI_g作为一个独立的vi通道？分别是port-index = <4>，port-index = <5> ？
c. 验证条件是每个csi的数据都是一样的，都是2 lane接收。
d. DSI_CLK_N DSI_CLK_P DSI_D0_N DSI_D0_P DSI_D1_N DSI_D1_P
以上gpio是否默认复用成CSI 模式？
| DSI_CLK_N | 76 | CSI_G_CLK_N | CSI_G_CLK_N | z | CSI_G_CLK_N | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DSI_CLK_P | 78 | CSI_G_CLK_P | CSI_G_CLK_P | z | CSI_G_CLK_P | |||||||
| DSI_D0_N | 70 | CSI_G_D0_N | CSI_G_D0_N | z | CSI_G_D0_N | |||||||
| DSI_D0_P | 72 | CSI_G_D0_P | CSI_G_D0_P | z | CSI_G_D0_P | |||||||
| DSI_D1_N | 82 | CSI_G_D1_N | CSI_G_D1_N | z | CSI_G_D1_N | |||||||
| DSI_D1_P | 84 | CSI_G_D1_P | CSI_G_D1_P | z | CSI_G_D1_P |