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Видеокамера + tvp5150

В 30.09.2022 в 11:02, Niyaz сказал:

какой сигнал декодируете? pal/ntsc?

не знаю. Как узнать?

В 30.09.2022 в 11:02, Niyaz сказал:

У вас стабильное видео?

у меня его вообще нет.

На текущий момент вроде разобрался с gstreamer1 и его плугами. Запускаю программу на qml, получаю

Цитата

[ 2010.653787] In MVC: mxc_v4l_open
[ 2010.658502]    device name is Mxc Camera
[ 2010.662427] adr of cam 0x826d0000
[ 2010.723661] End of mxc_v4l_open: v2f pix widthxheight 288 x 352
[ 2010.729604] End of mxc_v4l_open: crop_bounds widthxheight 720 x 525
[ 2010.736270] End of mxc_v4l_open: crop_defrect widthxheight 720 x 525
[ 2010.742686] End of mxc_v4l_open: crop_current widthxheight 720 x 525
[ 2010.749139] On Open: Input to ipu size is 720 x 525
[ 2010.853976] Selecting video route: route input=0, output=0 => tvp5150 input=0, opmode=0
[ 2010.899339] Set video std register to 0.
[ 2011.004189] Selecting video route: route input=0, output=0 => tvp5150 input=0, opmode=0
[ 2011.049369] Set video std register to 0.
[ 2011.054099] In MVC:mxc_v4l_ioctl
[ 2011.057353] In MVC: mxc_v4l_do_ioctl c050561a
[ 2011.061722]    case VIDIOC_ENUMINPUT
[ 2011.065398] In MVC:mxc_v4l_ioctl
[ 2011.068650] In MVC: mxc_v4l_do_ioctl c0045627
[ 2011.073017]    case VIDIOC_S_INPUT
[ 2011.076597] In MVC:mxc_v4l_ioctl
[ 2011.079900] In MVC: mxc_v4l_do_ioctl 80685600
[ 2011.084354]    case VIDIOC_QUERYCAP
[ 2011.087967] In MVC:mxc_v4l_close
[ 2011.093271] mxc_v4l_close: release resource
[ 2011.097458] MVC: In mxc_free_frame_buf
[ 2011.101209] In MVC:mxc_free_frames
[ 2011.147893]
[ 2011.147893] In MVC: mxc_v4l_open
[ 2011.152610]    device name is Mxc Camera
[ 2011.156618] adr of cam 0x826d0000
[ 2011.213650] End of mxc_v4l_open: v2f pix widthxheight 288 x 352
[ 2011.219592] End of mxc_v4l_open: crop_bounds widthxheight 720 x 525
[ 2011.226069] End of mxc_v4l_open: crop_defrect widthxheight 720 x 525
[ 2011.232496] End of mxc_v4l_open: crop_current widthxheight 720 x 525
[ 2011.238955] On Open: Input to ipu size is 720 x 525
[ 2011.343486] Selecting video route: route input=0, output=0 => tvp5150 input=0, opmode=0
[ 2011.389330] Set video std register to 0.
[ 2011.494470] Selecting video route: route input=0, output=0 => tvp5150 input=0, opmode=0
[ 2011.539360] Set video std register to 0.
[ 2011.544084] In MVC:mxc_v4l_ioctl
[ 2011.547337] In MVC: mxc_v4l_do_ioctl c050561a
[ 2011.551707]    case VIDIOC_ENUMINPUT
[ 2011.555364] In MVC:mxc_v4l_ioctl
[ 2011.558615] In MVC: mxc_v4l_do_ioctl c0045627
[ 2011.562983]    case VIDIOC_S_INPUT
[ 2011.566554] In MVC:mxc_v4l_ioctl
[ 2011.569853] In MVC: mxc_v4l_do_ioctl 80685600
[ 2011.574305]    case VIDIOC_QUERYCAP
[ 2011.577913] In MVC:mxc_v4l_close
[ 2011.583197] mxc_v4l_close: release resource
[ 2011.587385] MVC: In mxc_free_frame_buf
[ 2011.591135] In MVC:mxc_free_frames
Segmentation fault

 

 

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13 minutes ago, ericN said:

не знаю. Как узнать?

я считываю статус регистры: i2cdump -y -f -r 0x88-0x8c 0 0x5c

Status Register #5 показывает детектируемый сигнал, если у вас на автодетект настроен

Edited by Niyaz
опечатка

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В 30.09.2022 в 11:22, Niyaz сказал:

я считываю статус регистры: i2cdump -y -f -r 0x88-0x8c 0 0x5c

так?

Цитата

# i2cdump -y -f -r 0x88-0x8c 0 0x5c
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
80:                         XX XX XX XX XX                     XXXXX
#

В данном случае я вас слушаю как кухарка с смартфоном и с камерой. Я пытаюсь настроить linux на системном уровне. Физически подключил аналоговую камеру к tvp5150, а tvp5150 по csi/i2c к процессору. Пытаюсь подцепить готовые драйвера за завести камеру без погружения в исходники драйверов и в даташит tvp5150. Пока без успешно. Похоже придется залезать в исходники драйвера и там ковыряться. Только драйвера чего? драйвер tvp5150? или драйвер v4l2? или ещё какого плуга/прослойки?

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6 minutes ago, ericN said:

так?

В данном случае я вас слушаю как кухарка с смартфоном и с камерой. Я пытаюсь настроить linux на системном уровне. Физически подключил аналоговую камеру к tvp5150, а tvp5150 по csi/i2c к процессору. Пытаюсь подцепить готовые драйвера за завести камеру без погружения в исходники драйверов и в даташит tvp5150. Пока без успешно. Похоже придется залезать в исходники драйвера и там ковыряться. Только драйвера чего? драйвер tvp5150? или драйвер v4l2? или ещё какого плуга/прослойки?

почему то у вас не вернуло валидные данные - здесь не понятно почему

Я использую linux-5.15, там драйвер tvp5150.c подходит, у меня чип allwinner v3s

врядли надо копать v4l2, там все должно правильно работать

Edited by Niyaz

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у меня при загрузке tvp5150 вроде обнаруживается

Цитата

[    2.292364] In MVC:camera_init
[    2.295640] In MVC: init_camera_struct
[    2.299396] adr of cam = 0x82067000
[    2.302910] cam->sensor == NUUL in initCam
[    2.307172] exit from init_camera_struct
[    2.331615]    Video device registered: Mxc Camera #0
[    2.393551] tvp5150 2-005c: chip found at address 0x5c (21a8000.i2c)
[    2.424553] ata1: SATA link down (SStatus 0 SControl 300)
[    2.429997] ahci-imx 2200000.sata: no device found, disabling link.
[    2.436295] ahci-imx 2200000.sata: pass ahci_imx..hotplug=1 to enable hotplug
[    2.453537] tvp5150 2-005c: tvp5150am1 detected.
[    2.487647] In MVC: mxc_v4l2_master_attach
[    2.491745]    slave.name = tvp5150
[    2.495251]    master.name = mxc_v4l2_cap0
[    2.553555] End of mxc_v4l2_master_attach: v2f pix widthxheight 288 x 352
[    2.560348] End of mxc_v4l2_master_attach: crop_bounds widthxheight 720 x 525
[    2.567508] End of mxc_v4l2_master_attach: crop_defrect widthxheight 720 x 525
[    2.574748] End of mxc_v4l2_master_attach: crop_current widthxheight 720 x 525

и появляется /dev/video0

но вот при запуске программы получаю Segmentation fault.

у меня Linux version 5.10.9. Но он уже перепатченый под мою борду (для другой, не камеры, перефирии).  Может действительно в 5.15 всё заработает изкоропки.

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8 minutes ago, ericN said:

у меня при загрузке tvp5150 вроде обнаруживается

и появляется /dev/video0

но вот при запуске программы получаю Segmentation fault.

у меня Linux version 5.10.9. Но он уже перепатченый под мою борду (для другой, не камеры, перефирии).  Может действительно в 5.15 всё заработает изкоропки.

попробуйте эти команды

v4l2-ctl --set-fmt-video=width=720,height=288,pixelformat=UYVY --stream-mmap=4 --verbose -d /dev/video0

v4l2-ctl -d /dev/video0 --try-fmt-video=width=720,height=288,pixelformat=UYVY,field=none --stream-mmap --stream-count=1 --stream-to=test.yuv

можно эту еще:

fswebcam -S 5 -d /dev/video0 -p UYVY -r 720x288 test.jpg
 

Edited by Niyaz
обновил

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может есть мысли, что можно дернуть, чтобы проверить работу камеры и tvp5150? Может какуюнить утилиту из gstreamer1?

В 30.09.2022 в 11:51, Niyaz сказал:

попробуйте эту команду

-sh: v4l2-ctl: not found

щя, поищю в пакетах

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On 9/30/2022 at 2:08 AM, ericN said:

какой сигнал декодируете? pal/ntsc?

не знаю. Как узнать?

Из документации на камеру.

Иногда камера дает что-то одно, иногда ее можно настроить. Зависит от камеры и ее конфигурации.

On 9/30/2022 at 2:38 AM, ericN said:

так?

В данном случае я вас слушаю как кухарка с смартфоном и с камерой. Я пытаюсь настроить linux на системном уровне. Физически подключил аналоговую камеру к tvp5150, а tvp5150 по csi/i2c к процессору. Пытаюсь подцепить готовые драйвера за завести камеру без погружения в исходники драйверов и в даташит tvp5150. Пока без успешно. Похоже придется залезать в исходники драйвера и там ковыряться. Только драйвера чего? драйвер tvp5150? или драйвер v4l2? или ещё какого плуга/прослойки?

Для начала определите какой сигнал идет от камеры. SD: PAL/SECAM/NTSC или HD: 1080i, 1080p 720p. Может быть и 4K, но я сомневаюсь.
Сколько кадров в секунду, сколько строк.

Потом найдите как настроить на этот сигнал tvp5150+ драйвер и поддерживает ли его tvp5150 + драйвер.

 

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В 02.10.2022 в 23:08, Tarbal сказал:

Для начала определите какой сигнал идет от камеры.

нешел.... накамере маркировка (камера тестовая) v-cvc13p - это камера заднего вида от авто.

TV system -PAL (какой конкретно PAL - не нашел)

Кол-во строк и кадров определяет вроде как PAL. (хотя глянул - есть PAL I, есть PAL H, ... )
Мануал на камеру на английском Resolution: 330 K, мануал на русском Расширение 330 строк (перевод китайский)
 
сейчас при запуске теста вываливается вот это
Цитата

 

# qmlscene test.qml
Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).

(<unknown>:267): GLib-GObject-
[ 4702.606752] In MVC: mxc_v4l_open
[1;35mCRITICAL **: 01:18[ 4702.611714]    device name is Mxc Camera
:22.600: Object class GstImxV[ 4702.618521] adr of cam 0x826d8000
4l2VideoSrc doesn't implement property 'exposure-mode' from interface 'GstPhotography'
[ 4702.683626] End of mxc_v4l_open: v2f pix widthxheight 288 x 352
[ 4702.689568] End of mxc_v4l_open: crop_bounds widthxheight 720 x 525
[ 4702.695903] End of mxc_v4l_open: crop_defrect widthxheight 720 x 525
[ 4702.702285] End of mxc_v4l_open: crop_current widthxheight 720 x 525
[ 4702.708822] On Open: Input to ipu size is 720 x 525
[ 4702.812871] Selecting video route: route input=0, output=0 => tvp5150 input=0, opmode=0
[ 4702.849358] Set video std register to 0.
[ 4702.951657] Selecting video route: route input=0, output=0 => tvp5150 input=0, opmode=0
[ 4702.989410] Set video std register to 0.
[ 4702.994009] In MVC:mxc_v4l_ioctl
[ 4702.997258] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.001627]    case VIDIOC_QUERYCAP
[ 4703.005318] In MVC:mxc_v4l_ioctl
[ 4703.008616] In MVC: mxc_v4l_do_ioctl 8008563f
[ 4703.013022]    case default or not supported
[ 4703.017385] In MVC:mxc_v4l_ioctl
[ 4703.020801] In MVC: mxc_v4l_do_ioctl 80085617
[ 4703.025273]    case VIDIOC_G_STD
[ 4703.028525] In mxc_v4l2_g_std
[ 4703.031508] In MVC:mxc_v4l_ioctl
[ 4703.034769] In MVC: mxc_v4l_do_ioctl 40085618
[ 4703.039128]    case VIDIOC_S_STD
[ 4703.042356] In mxc_v4l2_s_std 0
[ 4703.045542] ERROR: unrecognized std! 0 (PAL=ff, NTSC=b000
[ 4703.050945] In MVC:mxc_v4l_ioctl
[ 4703.054195] In MVC: mxc_v4l_do_ioctl c0cc5604
[ 4703.058558]    case VIDIOC_G_FMT
[ 4703.061787] In MVC: mxc_v4l2_g_fmt type=1
[ 4703.065835]    type is V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4703.070630] End of mxc_v4l2_g_fmt: v2f pix widthxheight 288 x 352
[ 4703.076743] End of mxc_v4l2_g_fmt: crop_bounds widthxheight 720 x 625
[ 4703.083196] End of mxc_v4l2_g_fmt: crop_defrect widthxheight 720 x 525
[ 4703.089726] End of mxc_v4l2_g_fmt: crop_current widthxheight 720 x 576
[ 4703.096293] In MVC:mxc_v4l_ioctl
[ 4703.099526] In MVC: mxc_v4l_do_ioctl c02c564a
[ 4703.103914] In MVC:mxc_v4l_ioctl
[ 4703.107147] In MVC: mxc_v4l_do_ioctl c0045627
[ 4703.111504]    case VIDIOC_S_INPUT
[ 4703.114922] In MVC:mxc_streamoff
[ 4703.118155] In MVC:mxc_v4l_ioctl
[ 4703.121386] In MVC: mxc_v4l_do_ioctl c0cc5616
[ 4703.125783]    case VIDIOC_S_PARM
[ 4703.129101] In mxc_v4l2_s_param
[ 4703.132244]    Current capabilities are 1001
[ 4703.136531]    Current capturemode is 0  change to 0
[ 4703.141498]    Current framerate is 30  change to 30
[ 4703.146501] ioctl_s_parm TVP5150_OUTPUT_CONTROL_CHIP_ENABLE
[ 4703.152076]    clock_curr=mclk=0
[ 4703.213676]    g_fmt_cap returns widthxheight of input as 720 x 525
[ 4703.220657] In MVC:mxc_v4l_ioctl
[ 4703.223984] In MVC: mxc_v4l_do_ioctl c0cc5605
[ 4703.228361]    case VIDIOC_S_FMT
[ 4703.231601] In MVC: mxc_v4l2_s_fmt
[ 4703.235179]    type=V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4703.239785] End of mxc_v4l2_s_fmt: v2f pix widthxheight 720 x 520
[ 4703.245979] End of mxc_v4l2_s_fmt: crop_bounds widthxheight 720 x 525
[ 4703.252477] End of mxc_v4l2_s_fmt: crop_defrect widthxheight 720 x 525
[ 4703.259203] End of mxc_v4l2_s_fmt: crop_current widthxheight 720 x 525
[ 4703.266013] In MVC:mxc_v4l_ioctl
[ 4703.269266] In MVC: mxc_v4l_do_ioctl c0cc5604
[ 4703.273645]    case VIDIOC_G_FMT
[ 4703.276879] In MVC: mxc_v4l2_g_fmt type=1
[ 4703.280888]    type is V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4703.285698] End of mxc_v4l2_g_fmt: v2f pix widthxheight 720 x 520
[ 4703.291793] End of mxc_v4l2_g_fmt: crop_bounds widthxheight 720 x 525
[ 4703.298274] End of mxc_v4l2_g_fmt: crop_defrect widthxheight 720 x 525
[ 4703.304815] End of mxc_v4l2_g_fmt: crop_current widthxheight 720 x 525
[ 4703.311349] In MVC:mxc_v4l_ioctl
[ 4703.314595] In MVC: mxc_v4l_do_ioctl c008561c
[ 4703.318954]    case VIDIOC_S_CTRL
[ 4703.322269] In MVC:mxc_v4l2_s_ctrl
[ 4703.325719]    default case
[ 4703.328518] In MVC:mxc_v4l_ioctl
[ 4703.331748] In MVC: mxc_v4l_do_ioctl c008561c
[ 4703.336123]    case VIDIOC_S_CTRL
[ 4703.339439] In MVC:mxc_v4l2_s_ctrl
[ 4703.342840]    default case
[ 4703.345651] In MVC:mxc_v4l_ioctl
[ 4703.348883] In MVC: mxc_v4l_do_ioctl c008561b
[ 4703.353255]    case VIDIOC_G_CTRL
[ 4703.356571] In MVC:mxc_v4l2_g_ctrl
[ 4703.359973] ERROR: v4l2 capture: unsupported ioctrl!
[ 4703.364954] In MVC:mxc_v4l_ioctl
[ 4703.368184] In MVC: mxc_v4l_do_ioctl c008561c
[ 4703.372540]    case VIDIOC_S_CTRL
[ 4703.375893] In MVC:mxc_v4l2_s_ctrl
[ 4703.379296]    default case
[ 4703.399827] In MVC:mxc_v4l_ioctl
[ 4703.403145] In MVC: mxc_v4l_do_ioctl c0cc5604
[ 4703.407514]    case VIDIOC_G_FMT
[ 4703.410770] In MVC: mxc_v4l2_g_fmt type=1
[ 4703.414823]    type is V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4703.419624] End of mxc_v4l2_g_fmt: v2f pix widthxheight 720 x 520
[ 4703.425817] End of mxc_v4l2_g_fmt: crop_bounds widthxheight 720 x 525
[ 4703.432298] End of mxc_v4l2_g_fmt: crop_defrect widthxheight 720 x 525
[ 4703.438852] End of mxc_v4l2_g_fmt: crop_current widthxheight 720 x 525
[ 4703.459048] In MVC:mxc_v4l_ioctl
[ 4703.462290] In MVC: mxc_v4l_do_ioctl c0cc5604
[ 4703.466854]    case VIDIOC_G_FMT
[ 4703.470201] In MVC: mxc_v4l2_g_fmt type=1
[ 4703.474266]    type is V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4703.479084] End of mxc_v4l2_g_fmt: v2f pix widthxheight 720 x 520
[ 4703.485227] End of mxc_v4l2_g_fmt: crop_bounds widthxheight 720 x 525
[ 4703.491768] End of mxc_v4l2_g_fmt: crop_defrect widthxheight 720 x 525
[ 4703.498349] End of mxc_v4l2_g_fmt: crop_current widthxheight 720 x 525
[ 4703.505393] In MVC:mxc_v4l_ioctl
[ 4703.508657] In MVC: mxc_v4l_do_ioctl c0145608
[ 4703.513028]    case VIDIOC_REQBUFS
[ 4703.516454] In MVC:mxc_streamoff
[ 4703.519685] MVC: In mxc_free_frame_buf
[ 4703.523453] In MVC:mxc_allocate_frame_buf - size=748800
[ 4703.555080] In MVC:mxc_v4l_ioctl
[ 4703.558321] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.562679]    case VIDIOC_QUERYBUF
[ 4703.566190] In MVC:mxc_v4l2_buffer_status
[ 4703.570217] In MVC:mxc_mmap
[ 4703.573015]    pgoff=0x44400, start=0x66e48000, end=0x66eff000
[ 4703.578934] In MVC:mxc_v4l_ioctl
[ 4703.582167] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.586545]    case VIDIOC_QUERYBUF
[ 4703.590039] In MVC:mxc_v4l2_buffer_status
[ 4703.594065] In MVC:mxc_v4l_ioctl
[ 4703.597296] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.601653]    case VIDIOC_QUERYCAP
[ 4703.605356] In MVC:mxc_v4l_ioctl
[ 4703.608591] In MVC: mxc_v4l_do_ioctl c050560f
[ 4703.612949]    case VIDIOC_QBUF
[ 4703.616125] In MVC:mxc_v4l_ioctl
[ 4703.619360] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.623734]    case VIDIOC_QUERYBUF
[ 4703.627224] In MVC:mxc_v4l2_buffer_status
[ 4703.631245] In MVC:mxc_mmap
[ 4703.634084]    pgoff=0x44500, start=0x66c49000, end=0x66d00000
[ 4703.639936] In MVC:mxc_v4l_ioctl
[ 4703.643185] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.647543]    case VIDIOC_QUERYBUF
[ 4703.651032] In MVC:mxc_v4l2_buffer_status
[ 4703.655083] In MVC:mxc_v4l_ioctl
[ 4703.658315] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.662672]    case VIDIOC_QUERYCAP
[ 4703.666189] In MVC:mxc_v4l_ioctl
[ 4703.669423] In MVC: mxc_v4l_do_ioctl c050560f
[ 4703.673796]    case VIDIOC_QBUF
[ 4703.676945] In MVC:mxc_v4l_ioctl
[ 4703.680175] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.684571]    case VIDIOC_QUERYBUF
[ 4703.688062] In MVC:mxc_v4l2_buffer_status
[ 4703.692078] In MVC:mxc_mmap
[ 4703.694904]    pgoff=0x44600, start=0x66b92000, end=0x66c49000
[ 4703.700766] In MVC:mxc_v4l_ioctl
[ 4703.704015] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.708374]    case VIDIOC_QUERYBUF
[ 4703.711862] In MVC:mxc_v4l2_buffer_status
[ 4703.715913] In MVC:mxc_v4l_ioctl
[ 4703.719144] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.723519]    case VIDIOC_QUERYCAP
[ 4703.727018] In MVC:mxc_v4l_ioctl
[ 4703.730249] In MVC: mxc_v4l_do_ioctl c050560f
[ 4703.734622]    case VIDIOC_QBUF
[ 4703.737772] In MVC:mxc_v4l_ioctl
[ 4703.741002] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.745373]    case VIDIOC_QUERYBUF
[ 4703.748863] In MVC:mxc_v4l2_buffer_status
[ 4703.752880] In MVC:mxc_mmap
[ 4703.755693]    pgoff=0x44700, start=0x66adb000, end=0x66b92000
[ 4703.761543] In MVC:mxc_v4l_ioctl
[ 4703.764816] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.769174]    case VIDIOC_QUERYBUF
[ 4703.772663] In MVC:mxc_v4l2_buffer_status
[ 4703.776693] In MVC:mxc_v4l_ioctl
[ 4703.779929] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.784300]    case VIDIOC_QUERYCAP
[ 4703.787801] In MVC:mxc_v4l_ioctl
[ 4703.791030] In MVC: mxc_v4l_do_ioctl c050560f
[ 4703.795428]    case VIDIOC_QBUF
[ 4703.798577] In MVC:mxc_v4l_ioctl
[ 4703.801807] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.806178]    case VIDIOC_QUERYBUF
[ 4703.809670] In MVC:mxc_v4l2_buffer_status
[ 4703.813714] In MVC:mxc_mmap
[ 4703.816512]    pgoff=0x44800, start=0x66a24000, end=0x66adb000
[ 4703.822363] In MVC:mxc_v4l_ioctl
[ 4703.825639] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.829997]    case VIDIOC_QUERYBUF
[ 4703.833501] In MVC:mxc_v4l2_buffer_status
[ 4703.837513] In MVC:mxc_v4l_ioctl
[ 4703.840744] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.845118]    case VIDIOC_QUERYCAP
[ 4703.848618] In MVC:mxc_v4l_ioctl
[ 4703.851848] In MVC: mxc_v4l_do_ioctl c050560f
[ 4703.856245]    case VIDIOC_QBUF
[ 4703.859395] In MVC:mxc_v4l_ioctl
[ 4703.862625] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.866999]    case VIDIOC_QUERYBUF
[ 4703.870490] In MVC:mxc_v4l2_buffer_status
[ 4703.874525] In MVC:mxc_mmap
[ 4703.877325]    pgoff=0x44900, start=0x6696d000, end=0x66a24000
[ 4703.883224] In MVC:mxc_v4l_ioctl
[ 4703.886456] In MVC: mxc_v4l_do_ioctl c0505609
[ 4703.890812]    case VIDIOC_QUERYBUF
[ 4703.894319] In MVC:mxc_v4l2_buffer_status
[ 4703.898332] In MVC:mxc_v4l_ioctl
[ 4703.901561] In MVC: mxc_v4l_do_ioctl 80685600
[ 4703.905956]    case VIDIOC_QUERYCAP
[ 4703.909455] In MVC:mxc_v4l_ioctl
[ 4703.912685] In MVC: mxc_v4l_do_ioctl c050560f
[ 4703.917060]    case VIDIOC_QBUF
[ 4703.920205] In MVC:mxc_v4l_ioctl
[ 4703.923452] In MVC: mxc_v4l_do_ioctl 40045612
[ 4703.927810]    case VIDIOC_STREAMON
[ 4703.931298] In MVC:mxc_streamon
[ 4703.939048] In MVC:mxc_v4l_ioctl
[ 4703.942288] In MVC: mxc_v4l_do_ioctl c0505611
[ 4703.946679]    case VIDIOC_DQBUF
[ 4703.949909] In MVC:mxc_v4l_dqueue
[ 4704.004946] In MVC:camera_callback
[ 4704.009307] In MVC:mxc_v4l_ioctl
[ 4704.012571] In MVC: mxc_v4l_do_ioctl c0cc5604
[ 4704.017096]    case VIDIOC_G_FMT
[ 4704.020362] In MVC: mxc_v4l2_g_fmt type=1
[ 4704.024461]    type is V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4704.029301] End of mxc_v4l2_g_fmt: v2f pix widthxheight 720 x 520
[ 4704.035428] End of mxc_v4l2_g_fmt: crop_bounds widthxheight 720 x 525
[ 4704.040415] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_5 = 0x00000001
[ 4704.041888] End of mxc_v4l2_g_fmt: crop_defrect widthxheight 720 x 525
[ 4704.048944] In MVC:camera_callback
[ 4704.058919] End of mxc_v4l2_g_fmt: crop_current widthxheight 720 x 525
[ 4704.072661] In MVC:mxc_v4l_ioctl
[ 4704.075874] In MVC:camera_callback
[ 4704.079510] In MVC: mxc_v4l_do_ioctl c0cc5604
[ 4704.083949]    case VIDIOC_G_FMT
[ 4704.087221] In MVC: mxc_v4l2_g_fmt type=1
[ 4704.091271]    type is V4L2_BUF_TYPE_VIDEO_CAPTURE
[ 4704.096260] End of mxc_v4l2_g_fmt: v2f pix widthxheight 720 x 520
[ 4704.102402] End of mxc_v4l2_g_fmt: crop_bounds widthxheight 720 x 525
[ 4704.108899] End of mxc_v4l2_g_fmt: crop_defrect widthxheight 720 x 525
[ 4704.111317] In MVC:camera_callback
[ 4704.115484] End of mxc_v4l2_g_fmt: crop_current widthxheight 720 x 525
[ 4704.125543] In MVC:mxc_v4l_ioctl
[ 4704.128811] In MVC: mxc_v4l_do_ioctl c0505611
[ 4704.133203]    case VIDIOC_DQBUF
[ 4704.136439] In MVC:mxc_v4l_dqueue
[ 4704.139917] In MVC:mxc_v4l_ioctl
[ 4704.143203] In MVC: mxc_v4l_do_ioctl c0505611
[ 4704.146773] In MVC:camera_callback
[ 4704.147575]    case VIDIOC_DQBUF
[ 4704.154221] In MVC:mxc_v4l_dqueue
[ 4704.157666] In MVC:mxc_v4l_ioctl
[ 4704.160917] In MVC: mxc_v4l_do_ioctl c0505611
[ 4704.165309]    case VIDIOC_DQBUF
[ 4704.168541] In MVC:mxc_v4l_dqueue
[ 4704.171960] In MVC:mxc_v4l_ioctl
[ 4704.175220] In MVC: mxc_v4l_do_ioctl c0505611
[ 4704.179586]    case VIDIOC_DQBUF
[ 4704.182232] In MVC:camera_callback
[ 4704.182820] In MVC:mxc_v4l_dqueue
[ 4704.189590] ERROR: v4l2 capture: mxc_v4l_dqueue() interrupt received
[ 4704.212274] In MVC:mxc_v4l_close
[ 4704.217275] mxc_v4l_close: release resource
[ 4704.221467] MVC: In mxc_free_frame_buf
[ 4704.226575] In MVC:mxc_free_frames
Segmentation fault

 

 

Кто может подсказать - как это всё должно работать?
Вот включили питание.... прошел u-boot, началась загрузка ядра. в дереве девайсов встретилось описание tvp5150... вызывается нужный probe().... вот от сюда... что дальше?
Вызвали своё приложение... и что дальше? Как работает драйвер? Вызывается у драйвера tvp5150.с функция init()? или функция open()? Как происходит взаимодействие с v4l2? Каким боком тут gstreamer1?
 
 

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