Hello Team,
I am working on CSI2 Interface of AWR2243 with Jetson AGX Xavier.
I have ported "mmwavelink" on Jetson platform and communication path via I2C is completed.
Data Path Configuration in mmwavelink :- Lane Clock - DDR3 ; Data rate - 600Mbps ; All 4 lanes enabled ; CSI2 Virtual Channel 0 with Packet format CP_ADC_DATA and RAW8 Data format is used.
In configuring the data path for CSI2; I needed to modify the device tree of Jetson, which includes the following parameters.
Since AWR2243 is a RADAR Sensor and not a Camera Sensor , I find it hard to map values to these parameters.
Any support from the group is highly appreciated.
Device tree Config :-
compatible = "nvidia,ov5693";
/* I2C device address */
reg = <>;
/* V4L2 device node location */
devnode = "";
/* Physical dimensions of sensor */
physical_w = "";
physical_h = "";
/**
* A modeX node is required to support v4l2 driver
* implementation with NVIDIA camera software stack
*
* mclk_khz = "";
* Standard MIPI driving clock, typically 24MHz
*
* num_lanes = "";
* Number of lane channels sensor is programmed to output
*
* tegra_sinterface = "";
* The base tegra serial interface lanes are connected to
* Incase of virtual HW devices, use virtual
* For SW emulated devices, use host
*
* phy_mode = "";
* PHY mode used by the MIPI lanes for this device
*
* discontinuous_clk = "";
* The sensor is programmed to use a discontinuous clock on MIPI lanes
*
* dpcm_enable = "true";
* The sensor is programmed to use a DPCM modes
*
* cil_settletime = "";
* MIPI lane settle time value.
* A "0" value attempts to autocalibrate based on mclk_multiplier
*
*
*
*
* active_w = "";
* Pixel active region width
*
* active_h = "";
* Pixel active region height
*
* pixel_t = "";
* The sensor readout pixel pattern
*
* readout_orientation = "0";
* Based on camera module orientation.
* Only change readout_orientation if you specifically
* Program a different readout order for this mode
*
* line_length = "";
* Pixel line length (width) for sensor mode.
* This is used to calibrate features in our camera stack.
*
* mclk_multiplier = "";
* Multiplier to MCLK to help time hardware capture sequence
* TODO: Assign to PLL_Multiplier as well until fixed in core
*
* pix_clk_hz = "";
* Sensor pixel clock used for calculations like exposure and framerate
*
*
*
*
* inherent_gain = "";
* Gain obtained inherently from mode (ie. pixel binning)
*
* == 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 (us)
*
*
* min_hdr_ratio = "";
* max_hdr_ratio = "";
* HDR Ratio limits for mode
*
* framerate_factor = ""; (integer factor used for floating to fixed point conversion)
* min_framerate = "";
* max_framerate = "";
* step_framerate = ""; (ceil to integer)
* default_framerate = ""; (ceil to integer)
* Framerate limits for mode (fps)
*/
/**
* Physical settings to calculate max ISO BW
*
* num_csi_lanes = <>;
* Total number of CSI lanes when all cameras are active
*
* max_lane_speed = <>;
* Max lane speed in Kbit/s
*
* min_bits_per_pixel = <>;
* Min bits per pixel
*
* vi_peak_byte_per_pixel = <>;
* Max byte per pixel for the VI ISO case
*
* vi_bw_margin_pct = <>;
* Vi bandwidth margin in percentage
*
* max_pixel_rate = <>;
* Max pixel rate in Kpixel/s for the ISP ISO case
*
* isp_peak_byte_per_pixel = <>;
* Max byte per pixel for the ISP ISO case
*
* isp_bw_margin_pct = <>;
* Isp bandwidth margin in percentage
*/
Thanks and Regards
Vignesh
