Hi guys,
I’m developing MAX9286/MAX96705 on AGX Xavier(L4T-R32.3.1), now Xavier can get two camera node, and /dev/video0 works fine, but when I try to open /dev/video1, can’t get any preview video data but csi signal can be measured.
Now I have some question about multi-cameras using MAX9286+MAX96705, anyone can help me? Thanks so much.
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What commands to open multi-cameras ? First open camera0 and then open camera1 using gst-launch-1.0 right? but just get one gst-lauch window on screen.
$gst-launch-1.0 v4l2src device=/dev/video0 ! ‘video/x-raw,width=1280,height=720,format=(string)YUY2’ ! nvvidconv ! ‘video/x-raw’ ! xvimagesink (ok)
$gst-launch-1.0 v4l2src device=/dev/video1 ! ‘video/x-raw,width=1280,height=720,format=(string)YUY2’ ! nvvidconv ! ‘video/x-raw’ ! xvimagesink (ok) -
MAX9286/MAX96705 register setting is different while opening camera0/camera1, we are using 50Hz wave to MAX9286 FRSYNC/GPI Pin and set MAX96705 GPO for multi-cameras frame sync(external frame sync)
Open camera0:
MAX96705: 0x0f=0xbf
MAX9286: 0x00=0xe1, 0x01=0x00 （not using frame sync）， and get preivew camera0 success(0x31 get is 0x40)
Open camera1: (camera0 is opened using “1” commands)
MAX96705: 0x0f=0xbf
MAX9286: 0x00=0xe3, 0x01=0xe2 （using external frame sync）， and camera1 can’t get any preivew (0x31 get is 0x00) -
Here is the dtsi setting for gmsl camera with VC-ID, the setting is right or not?
/* * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ / { host1x { vi@15c10000 { num-channels = <2>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ar0143_vi_in0: endpoint { vc-id = <0>; port-index = <0>; bus-width = <4>; remote-endpoint = <&ar0143_csi_out0>; }; }; port@1 { reg = <1>; ar0143_vi_in1: endpoint { vc-id = <1>; port-index = <0>; bus-width = <4>; remote-endpoint = <&ar0143_csi_out1>; }; }; }; }; nvcsi@15a00000 { num-channels = <2>; #address-cells = <1>; #size-cells = <0>; channel@0 { reg = <0>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ar0143_csi_in0: endpoint@0 { port-index = <0>; bus-width = <4>; remote-endpoint = <&ar0143_ar0143_out0>; }; }; port@1 { reg = <1>; ar0143_csi_out0: endpoint@1 { remote-endpoint = <&ar0143_vi_in0>; }; }; }; }; channel@1 { reg = <1>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ar0143_csi_in1: endpoint@2 { port-index = <0>; bus-width = <4>; remote-endpoint = <&ar0143_ar0143_out1>; }; }; port@1 { reg = <1>; ar0143_csi_out1: endpoint@3 { remote-endpoint = <&ar0143_vi_in1>; }; }; }; }; }; }; i2c@3180000 { ar0143_a@1b { compatible = "nvidia,ar0143"; reg = <0x1b>; /* Physical dimensions of sensor */ physical_w = "15.0"; physical_h = "12.5"; sensor_model ="ar0143"; post_crop_frame_drop = "0"; /* Convert Gain to unit of dB (decibel) befor passing to kernel driver */ use_decibel_gain = "true"; /* enable CID_SENSOR_MODE_ID for sensor modes selection */ use_sensor_mode_id = "true"; mode0 {/*mode AR0143_MODE_1280X720_CROP_30FPS*/ mclk_khz = "24000"; num_lanes = "4"; tegra_sinterface = "serial_c"; vc_id = "0"; discontinuous_clk = "no"; dpcm_enable = "false"; cil_settletime = "0"; /* dynamic_pixel_bit_depth = "12"; csi_pixel_bit_depth = "12"; mode_type = "bayer"; pixel_phase = "rggb"; */ dynamic_pixel_bit_depth = "8"; csi_pixel_bit_depth = "8"; mode_type = "yuv"; pixel_phase = "yuyv"; active_w = "1280"; active_h = "720"; readout_orientation = "0"; line_length = "2200"; inherent_gain = "1"; pix_clk_hz = "74250000"; serdes_pix_clk_hz = "833333333"; gain_factor = "10"; min_gain_val = "0"; /* dB */ max_gain_val = "300"; /* dB */ step_gain_val = "3"; /* 0.3 */ default_gain = "0"; min_hdr_ratio = "1"; max_hdr_ratio = "1"; framerate_factor = "1000000"; min_framerate = "30000000"; max_framerate = "30000000"; step_framerate = "1"; default_framerate = "30000000"; exposure_factor = "1000000"; min_exp_time = "59"; /*us, 2 lines*/ max_exp_time = "33333"; step_exp_time = "1"; default_exp_time = "33333";/* us */ embedded_metadata_height = "0"; }; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ar0143_ar0143_out0: endpoint { vc-id = <0>; port-index = <0>; bus-width = <4>; remote-endpoint = <&ar0143_csi_in0>; }; }; }; gmsl-link { src-csi-port = "b"; dst-csi-port = "a"; serdes-csi-link = "a"; csi-mode = "1x4"; st-vc = <0>; vc-id = <0>; num-lanes = <4>; streams = "ued-u1", "raw12"; }; }; ar0143_b@1c { compatible = "nvidia,ar0143"; reg = <0x1c>; /* Physical dimensions of sensor */ physical_w = "15.0"; physical_h = "12.5"; sensor_model ="ar0143"; /* Defines number of frames to be dropped by driver internally after applying */ /* sensor crop settings. Some sensors send corrupt frames after applying */ /* crop co-ordinates */ post_crop_frame_drop = "0"; /* Convert Gain to unit of dB (decibel) befor passing to kernel driver */ use_decibel_gain = "true"; /* enable CID_SENSOR_MODE_ID for sensor modes selection */ use_sensor_mode_id = "true"; mode0 {/*mode AR0143_MODE_1280X720_CROP_30FPS*/ mclk_khz = "24000"; num_lanes = "4"; tegra_sinterface = "serial_c"; vc_id = "1"; discontinuous_clk = "no"; dpcm_enable = "false"; cil_settletime = "0"; /* dynamic_pixel_bit_depth = "12"; csi_pixel_bit_depth = "12"; mode_type = "bayer"; pixel_phase = "rggb"; */ dynamic_pixel_bit_depth = "8"; csi_pixel_bit_depth = "8"; mode_type = "yuv"; pixel_phase = "yuyv"; active_w = "1280"; active_h = "720"; readout_orientation = "0"; line_length = "2200"; inherent_gain = "1"; pix_clk_hz = "74250000"; serdes_pix_clk_hz = "833333333"; gain_factor = "10"; min_gain_val = "0"; /* dB */ max_gain_val = "300"; /* dB */ step_gain_val = "3"; /* 0.3 */ default_gain = "0"; min_hdr_ratio = "1"; max_hdr_ratio = "1"; framerate_factor = "1000000"; min_framerate = "30000000"; max_framerate = "30000000"; step_framerate = "1"; default_framerate = "30000000"; exposure_factor = "1000000"; min_exp_time = "59"; /*us, 2 lines*/ max_exp_time = "33333"; step_exp_time = "1"; default_exp_time = "33333";/* us */ embedded_metadata_height = "0"; }; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; ar0143_ar0143_out1: endpoint { vc-id = <1>; port-index = <0>; bus-width = <4>; remote-endpoint = <&ar0143_csi_in1>; }; }; }; gmsl-link { src-csi-port = "b"; dst-csi-port = "a"; serdes-csi-link = "b"; csi-mode = "1x4"; st-vc = <0>; vc-id = <1>; num-lanes = <4>; streams = "ued-u1", "raw12"; }; }; }; }; / { tegra-camera-platform { compatible = "nvidia, tegra-camera-platform"; num_csi_lanes = <4>; max_lane_speed = <4000000>; min_bits_per_pixel = <10>; vi_peak_byte_per_pixel = <2>; vi_bw_margin_pct = <25>; isp_peak_byte_per_pixel = <5>; isp_bw_margin_pct = <25>; /** * The general guideline for naming badge_info contains 3 parts, and is as follows, * The first part is the camera_board_id for the module; if the module is in a FFD * platform, then use the platform name for this part. * The second part contains the position of the module, ex. "rear" or "front". * The third part contains the last 6 characters of a part number which is found * in the module's specsheet from the vender. */ modules { module0 { badge = "ar0143_frontl"; position = "rear"; orientation = "1"; drivernode0 { /* Declare PCL support driver (classically known as guid) */ pcl_id = "v4l2_sensor"; /* Driver v4l2 device name */ devname = "ar0143 2-001b"; /* Declare the device-tree hierarchy to driver instance */ proc-device-tree = "/proc/device-tree/i2c@3180000/ar0143_a@1b"; }; }; module1 { badge = "ar0143_frontr"; position = "front"; orientation = "1"; drivernode0 { /* Declare PCL support driver (classically known as guid) */ pcl_id = "v4l2_sensor"; /* Driver v4l2 device name */ devname = "ar0143 2-001c"; /* Declare the device-tree hierarchy to driver instance */ proc-device-tree = "/proc/device-tree/i2c@3180000/ar0143_b@1c"; }; }; }; }; };