NXP i.MX6 Quad + ISL79987. MIPI CSI-2. No image.

[mihail75r]

Hi, everybody. Image capture does not occur. "ioctl(fd, VIDIOC_DQBUFS, &buf)" returns -1. There are two problems. 1. The MIPI_CSI_PHY_STATE register has the value 0x200. Although the oscilloscope can be seen clocking. 2. In the mxc_v4l2_capture.c module, when calling VIDIOC_DQBUFS, "enc_counter" in the "_cam_data" structure is 0. Please help me.

[jimmychan]

Which BSP are you using? and what is the version? Is the camera driver up during the boot? if possible, please provide the boot up log for further investigation.

[mihail75r]

Thanks. The board is custom with VAR-SOM-MX6. Operating system Yocto thud-FSLC-4.14.78-mx6-v1. 0. The camera driver is enabled at boot time.

Boot up log :

[ 1277.254533] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_VERSION = 0x3130302a
[ 1277.261249] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_N_LANES = 0x1
[ 1277.267390] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_PHY_SHUTDOWNZ = 0x1
[ 1277.274009] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_DPHY_RSTZ = 0x1
[ 1277.280300] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_CSI2_RESETN = 0x1
[ 1277.286870] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_PHY_STATE = 0x200
[ 1277.293349] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_DATA_IDS_1 = 0x0
[ 1277.299758] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_DATA_IDS_2 = 0x0
[ 1277.306160] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_ERR1 = 0x0
[ 1277.312238] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_ERR2 = 0x0
[ 1277.318095] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_MASK1 = 0x0
[ 1277.324015] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_MASK2 = 0x0
[ 1277.329979] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_PHY_TST_CTRL0 = 0x0
[ 1277.336610] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_PHY_TST_CTRL1 = 0xc0c
[ 1277.343398] isl79987_mipi.c mxc_wait_mipi_csi2_ready() MIPI_CSI2_SFT_RESET = 0x0
[ 1277.349684] isl79987_mipi.c mxc_wait_mipi_csi2_ready() mipi_reg = 0x200
[ 1277.355185] isl79987_mipi.c mxc_wait_mipi_csi2_ready() 'mipi csi2 can not receive sensor clk!'
[ 1277.362667] mipi csi2 can not receive sensor clk!
[ 1277.366094] isl79987_mipi.c isl79987_update_sensor_data() 'failed check_csi2_rx_mipi_dphy'
[ 1277.373237] isl79987_update_sensor_data failed check_csi2_rx_mipi_dphy
[ 1277.378486] isl79987_mipi.c ioctl_g_std() 'failed isl79987_update_sensor_data'
[ 1277.384599] ioctl_g_std failed isl79987_update_sensor_data
[ 1277.388788] MVC: mxc_v4l2_g_std: Changing standard
[ 1277.388793] In mxc_v4l2_s_std ff
[ 1277.388797] Setting standard to PAL ff
[ 1277.388804] End of mxc_v4l2_s_std: crop_bounds widthxheight 720 x 625
[ 1277.388809] End of mxc_v4l2_s_std: crop_current widthxheight 720 x 576
[ 1277.389402] In MVC:mxc_v4l_ioctl
[ 1277.389411] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.393223] In MVC: mxc_v4l_do_ioctl c0cc5615
[ 1277.393229] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_G_PARM
[ 1277.398049] case VIDIOC_G_PARM
[ 1277.398055] isl79987_mipi.c ioctl_g_parm()
[ 1277.401025] isl79987_mipi.c ioctl_g_parm() V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 1277.408069] In MVC:mxc_v4l_ioctl
[ 1277.408076] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.411882] In MVC: mxc_v4l_do_ioctl c0cc5616
[ 1277.411887] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_PARM
[ 1277.416770] case VIDIOC_S_PARM
[ 1277.416774] In mxc_v4l2_s_param
[ 1277.416777] isl79987_mipi.c ioctl_g_parm()
[ 1277.419747] isl79987_mipi.c ioctl_g_parm() V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 1277.425185] Current capabilities are 1001
[ 1277.425190] Current capturemode is 0 change to 0
[ 1277.425194] Current framerate is 25 change to 0
[ 1277.425198] isl79987_mipi.c ioctl_s_parm()
[ 1277.428169] clock_curr=mclk=27000000
[ 1277.428175] g_fmt_cap returns widthxheight of input as 720 x 576
[ 1277.428180] End of mxc_v4l2_s_param: v2f pix widthxheight 288 x 216
[ 1277.428184] End of mxc_v4l2_s_param: crop_bounds widthxheight 720 x 576
[ 1277.428189] End of mxc_v4l2_s_param: crop_defrect widthxheight 720 x 480
[ 1277.428193] End of mxc_v4l2_s_param: crop_current widthxheight 720 x 576
[ 1277.428198] End of mxc_v4l2_s_param: v2f pixelformat:33424752 field:4
[ 1277.428202] End of mxc_v4l2_s_param: Input to ipu size is 720 x 576
[ 1277.428609] In MVC:mxc_v4l_ioctl
[ 1277.428633] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.432433] In MVC: mxc_v4l_do_ioctl c0145608
[ 1277.432438] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_REQBUFS
[ 1277.437372] case VIDIOC_REQBUFS
[ 1277.437376] mxc_v4l2_capture.c mxc_streamoff()
[ 1277.440692] In MVC:mxc_streamoff
[ 1277.440696] MVC: In mxc_free_frame_buf
[ 1277.440703] In MVC:mxc_allocate_frame_buf - size=186624
[ 1277.446561] In MVC:mxc_v4l_ioctl
[ 1277.446568] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.450381] In MVC: mxc_v4l_do_ioctl c0445609
[ 1277.450386] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF
[ 1277.455379] case VIDIOC_QUERYBUF
[ 1277.455386] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF 'buf->memory & V4L2_MEMORY_MMAP 1'
[ 1277.463419] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF 'buf->memory & V4L2_MEMORY_MMAP 2'
[ 1277.471443] In MVC:mxc_v4l2_buffer_status
[ 1277.471450] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF END
[ 1277.476977] In MVC:mxc_mmap
[ 1277.476985] pgoff=0x3c140, start=0x6a91a000, end=0x6a948000
[ 1277.477254] In MVC:mxc_v4l_ioctl
[ 1277.477260] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.481012] In MVC: mxc_v4l_do_ioctl c0445609
[ 1277.481016] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF
[ 1277.486070] case VIDIOC_QUERYBUF
[ 1277.486074] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF 'buf->memory & V4L2_MEMORY_MMAP 1'
[ 1277.494097] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF 'buf->memory & V4L2_MEMORY_MMAP 2'
[ 1277.502120] In MVC:mxc_v4l2_buffer_status
[ 1277.502127] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF END
[ 1277.507633] In MVC:mxc_mmap
[ 1277.507640] pgoff=0x3c180, start=0x69d92000, end=0x69dc0000
[ 1277.507823] In MVC:mxc_v4l_ioctl
[ 1277.507828] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.511598] In MVC: mxc_v4l_do_ioctl c0445609
[ 1277.511602] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF
[ 1277.516594] case VIDIOC_QUERYBUF
[ 1277.516600] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF 'buf->memory & V4L2_MEMORY_MMAP 1'
[ 1277.524687] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF 'buf->memory & V4L2_MEMORY_MMAP 2'
[ 1277.532690] In MVC:mxc_v4l2_buffer_status
[ 1277.532694] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QUERYBUF END
[ 1277.538207] In MVC:mxc_mmap
[ 1277.538215] pgoff=0x3c1c0, start=0x69d64000, end=0x69d92000
[ 1277.539100] In MVC:mxc_v4l_ioctl
[ 1277.539106] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.542943] In MVC: mxc_v4l_do_ioctl c044560f
[ 1277.542948] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QBUF
[ 1277.547591] case VIDIOC_QBUF
[ 1277.547937] In MVC:mxc_v4l_ioctl
[ 1277.547943] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.551763] In MVC: mxc_v4l_do_ioctl c044560f
[ 1277.551767] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QBUF
[ 1277.556410] case VIDIOC_QBUF
[ 1277.556765] In MVC:mxc_v4l_ioctl
[ 1277.556770] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.560529] In MVC: mxc_v4l_do_ioctl c044560f
[ 1277.560533] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_QBUF
[ 1277.565205] case VIDIOC_QBUF
[ 1277.565431] In MVC:mxc_v4l_ioctl
[ 1277.565437] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.569212] In MVC: mxc_v4l_do_ioctl c0045627
[ 1277.569216] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_INPUT
[ 1277.574095] case VIDIOC_S_INPUT
[ 1277.574099] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_INPUT 'mxc_capture_inputs[cam->current_input].status &'
[ 1277.583410] mxc_v4l2_capture.c mxc_streamoff()
[ 1277.586772] In MVC:mxc_streamoff
[ 1277.586778] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_INPUT 'strcmp(mxc_capture_inputs[*index].name, CSI MEM) == 0'
[ 1277.596539] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_INPUT 'CONFIG_MXC_IPU_CSI_ENC) || defined(CONFIG_MXC_IPU_CSI_ENC_MODULE'
[ 1277.607281] ipu_csi_enc.c csi_enc_select()
[ 1277.610163] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_INPUT 90
[ 1277.615322] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_S_INPUT END
[ 1277.620711] In MVC:mxc_v4l_ioctl
[ 1277.620716] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1277.624557] In MVC: mxc_v4l_do_ioctl 40045612
[ 1277.624562] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_STREAMON
[ 1277.629527] case VIDIOC_STREAMON
[ 1277.629531] mxc_v4l2_capture.c mxc_streamon()
[ 1277.632767] In MVC:mxc_streamon
[ 1277.632781] mxc_v4l2_capture.c mxc_streamon() 'cam->enc_enable'
[ 1277.637595] ipu_csi_enc.c csi_enc_enabling_tasks()
[ 1277.641173] ipu_csi_enc.c csi_enc_enabling_tasks() 'IPU:In csi_enc_enabling_tasks'
[ 1277.647547] ipu_csi_enc.c csi_enc_enabling_tasks() IPU_IRQ_CSI0_OUT_EOF
[ 1277.654747] ipu_csi_enc.c csi_enc_setup() ------------------
[ 1277.659195] ipu_csi_enc.c csi_enc_setup() 'csi_channel = CSI_MEM0'
[ 1277.664162] ipu_csi_enc.c csi_enc_setup() 'IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR'
[ 1277.670829] ipu_csi_enc.c csi_enc_setup() 'params.csi_mem.interlaced = true'
[ 1277.676705] ipu_csi_enc.c csi_enc_setup() In csi_enc_setup cam->v2f.fmt.pix.field:4 params.csi_mem.interlaced:1
[ 1277.685512]
In csi_enc_setup cam->v2f.fmt.pix.field:4 params.csi_mem.interlaced:1
[ 1277.685520] ipu_csi_enc.c csi_enc_setup() IPU_PIX_FMT_RGB24
[ 1277.689878] mxc_mipi_csi2.c mipi_csi2_get_info()
[ 1277.693366] ipu_csi_enc.c csi_enc_setup() 'mipi_csi2_info'
[ 1277.697677] mxc_mipi_csi2.c mipi_csi2_get_status()
[ 1277.701341] mxc_mipi_csi2.c mipi_csi2_get_status() 2
[ 1277.705203] mxc_mipi_csi2.c mipi_csi2_get_status() 4
[ 1277.709040] mxc_mipi_csi2.c mipi_csi2_get_status() END
[ 1277.713049] ipu_csi_enc.c csi_enc_setup() 'mipi_csi2_get_status(mipi_csi2_info)'
[ 1277.719270] ipu_csi_enc.c csi_enc_setup() 'cam->ipu == ipu_get_soc(ipu_id)'
[ 1277.725030] mxc_mipi_csi2.c mipi_csi2_get_datatype()
[ 1277.728872] In csi_enc_setup interfaced:1 mipi_en:1 mipi_vc:0 mipi_id:0x1e
[ 1277.734460] ipu3/ipu_common.c ipu_init_channel() ipu->id = 0
[ 1277.738993] ipu3/ipu_common.c ipu_init_channel() channel = 268435392
[ 1277.744218] ipu3/ipu_common.c ipu_init_channel() params = -1446945356
[ 1277.749547] ipu3/ipu_common.c ipu_init_channel() init channel = 15
[ 1277.754540] ipu3/ipu_common.c ipu_init_channel() channel = 268435392
[ 1277.759765] ipu3/ipu_common.c ipu_init_channel() CSI_MEM3
[ 1277.764034] ipu3/ipu_common.c ipu_init_channel() CSI_MEM3 'params->csi_mem.interlaced'
[ 1277.770866] ipu3/ipu_common.c ipu_init_channel() CSI_MEM3 'params->csi_mem.mipi_en'
[ 1277.777410] ipu3/ipu_common.c ipu_init_channel() CSI_MEM3 END
[ 1277.782027] ipu3/ipu_common.c ipu_init_channel() END -> ERROR
[ 1277.786661] ipu3/ipu_common.c ipu_init_channel() ERROR
[ 1277.790689] ipu_csi_enc.c csi_enc_setup() 'END ERROR'
[ 1277.794546] ipu_csi_enc.c csi_enc_enabling_tasks() END err = 0
[ 1277.799104] mxc_streamon cam->v2f.fmt.pix.field:4 cam->device_type:1
[ 1277.799109] mxc_v4l2_capture.c mxc_streamon() enc_update_eba() = 2131532096
[ 1277.804942] mxc_v4l2_capture.c mxc_streamon() 'cam->enc_update_eba'
[ 1277.810079] ipu_csi_enc.c csi_enc_eba_update()
[ 1277.813306] eba 3c140000
[ 1277.813311] ipu_csi_enc.c csi_enc_eba_update()
[ 1277.816539] eba 3c180000
[ 1277.816590] mxc_v4l2_capture.c mxc_streamon() 'cam->enc_enable_csi'
[ 1277.821729] ipu_csi_enc.c csi_enc_enable_csi()
[ 1277.824981] mxc_v4l2_capture.c mxc_streamon() END
[ 1278.010826] In MVC:mxc_v4l_ioctl
[ 1278.010837] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1278.014637] In MVC: mxc_v4l_do_ioctl c0445611
[ 1278.014646] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF
[ 1278.019353] case VIDIOC_DQBUF
[ 1278.019359] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF enc_counter = 0x0
[ 1278.025700] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF file->f_flags = 0x802
[ 1278.032319] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF O_NONBLOCK = 0x800
[ 1278.038705] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF 2
[ 1278.887561] In MVC:mxc_v4l_ioctl
[ 1278.887580] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1278.891355] In MVC: mxc_v4l_do_ioctl c0445611
[ 1278.891364] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF
[ 1278.896195] case VIDIOC_DQBUF
[ 1278.896210] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF enc_counter = 0x0
[ 1278.902495] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF file->f_flags = 0x802
[ 1278.909148] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF O_NONBLOCK = 0x800
[ 1278.915527] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF 2
[ 1279.937511] In MVC:mxc_v4l_ioctl
[ 1279.937529] mxc_v4l2_capture.c mxc_v4l_do_ioctl() 0
[ 1279.941302] In MVC: mxc_v4l_do_ioctl c0445611
[ 1279.941311] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF
[ 1279.946133] case VIDIOC_DQBUF
[ 1279.946150] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF enc_counter = 0x0
[ 1279.952433] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF file->f_flags = 0x802
[ 1279.959086] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF O_NONBLOCK = 0x800
[ 1279.965463] mxc_v4l2_capture.c mxc_v4l_do_ioctl() VIDIOC_DQBUF 2
[ 1280.987557] In MVC:mxc_v4l_ioctl

[jimmychan · Accepted solution]

This may help you.

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/iMX6DQ-ISL79985-79987-MIPI-CSI2-CVBS-cam...

[mihail75r]

Thank you very much! The video sequence appeared. But it consists of two fields.

fmt.fmt.pix.field = V4L2_FIELD_INTERLACED_BT;
ioctl(fd_output_v4l, VIDIOC_S_FMT, &fmt)

The command to output to the screen does not help.

For a camera running on a parallel interface, this command helps. How to display a normal image?