v4l2 example

Hi Bala, any luck with your ipipe? I have segmentation fault for the ipipe demo.

Hi,

Still I am getting same error only. But v4l2 example is running properly. I gave this bootargs.

setenv bootargs console=ttyS0,115200n8 noinitrd rw ip=192.168.1.10 root=/dev/nfs nfsroot=$(nfshost):$(rootpath),nolock mem=116M davinci_capture.device_type=1

What about your ipipe. Anybody help for us.

Regards

Bala

Hello there,

I have exactly the same problems? Did you solve it already? It would be nice if you can post me a solution.

Martin

Howdy,

I managed to get ipipe_rsz_example to run by setting video=davincifb:vid0=off:vid1=off in the bootargs.  No segmentation fault.  BUT, there is no video!   The screen is blank.  The process is using about 20% of the cpu, so it is not hanging, but something is still screwey.

Bala, you say you got the v4l2 example running.  Do you mean the v4l2_loop example found in this directory?

/home/user/dvsdk_1_30_00_40/PSP_01_20_00_014/examples/v4l2

For v4l2 example you have to set bootargs. Plz refer section-4.2 in "LSP 1.20 DaVinci Linux V4L2 Display Driver" User's Guide (SPRUEL3).

Bala...

Hi,

I have DM6446 EVM and when I tried to run "fbdev_loop"  example I get the following error:

root@192.168.184.70:/opt/dvsdk/fbdev_loop# ./fbdev_loop -v 0 -c 200&
[1] 1056
root@192.168.184.70:/opt/dvsdk/fbdev_loop# getopt returns 118
vidid is 0
opening VID0
getopt returns 99
getopt returns -1
mode:NTSC       output:COMPOSITE
mode is NTSC
Setting NTSC DISPLAY
initializing capture device
Default crop capbility bounds - 0 0 720 576 ; default - 0 0 720 576
setting data format
SetDataFormat:setting std to auto select
SetDataFormat:ioctl:VIDIOC_QUERYSTD:
SetDataFormat:setting data format
SetDataFormat:finally negotiated width:720 height:480
initializing capture buffers
initializing display device
Initializing VID0

Failed to Initialize VID0:
: Invalid argument
Failed FBIOPUT_VSCREENINFOinit_and_mmap Failed

When I tried the "v4l2_loop" exapmle I got the following:

root@192.168.184.70:/opt/dvsdk/v4l2_example# ./v4l2_loop
 xres = 0 , yres = 0 Current input: COMPOSITE
Init Capture_VIDIOC_QUERYSTD:
Init: Error in Initializing the Format for Capture

How can I run these examples??

(My bootarg is:

mem=120 console=ttyS0,115200n8 root=/dev/nfs nfsroot=192.168.184.70:/home/user/workdir/filesys rw noinitrd ip=dhcp davinci_capture.device_type=0)

try adding the following to your bootargs

video=davincifb:vid0=720x576x16,2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K

also, if you could post your boot log, we can verify there are not any errors posted duing initialization of the video drivers

I tried  "fbdev_loop"  example with the following bootargs, no video is displayed on the screen and execution stops after writing the debug messages of

"VID0 Display buffer 1 mapped to address 0x40499800
VID0 Display buffer 2 mapped to address 0x40564000"

BOOTARGS:

bootargs=video=davincifb:vid0=720x576x16,2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=pal console=ttyS0,115200n8 noinitrd rw ip=dhcp root/dev/nfs nfsroot=192.168.171.89:/home/ferhat_olgun/workdir/filesys,nolcok mem=120M

BOOTLOG:

U-Boot 1.1.3 (Dec  4 2006 - 12:05:38)

U-Boot code: 81080000 -> 81097628  BSS: -> 810A0018
RAM Configuration:
Bank #0: 80000000 256 MB
Flash: 16 MB
In:    serial
Out:   serial
Err:   serial
ARM Clock :- 297MHz
DDR Clock :- 162MHz
Hit any key to stop autoboot:  0
BOOTP broadcast 1
DHCP client bound to address 192.168.184.70
TFTP from server 192.168.170.238; our IP address is 192.168.184.70
Filename 'uImage'.
Load address: 0x80700000
Loading: #################################################################
         #################################################################
         ################################################T #################
         #################################################T ################
         #########################################
done
Bytes transferred = 1538568 (177a08 hex)
## Booting image at 80700000 ...
   Image Name:   Linux-2.6.10_mvl401
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1538504 Bytes =  1.5 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
OK

Starting kernel ...

Uncompressing Linu...................................................................................................... doLinux version 2.6.10_mvl401 (root@localhost.localdomain) (gcc version 3.4.3 (MontaVista 3.4.3-25.0.104.0600975 2006-07-06)) #2 Wed Jun 17 09:46:47 EEST 2009
CPU: ARM926EJ-Sid(wb) [41069265] revision 5 (ARMv5TEJ)
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets
Machine: DaVinci EVM
Memory policy: ECC disabled, Data cache writeback
DM6443
Built 1 zonelists
Kernel command line: video=davincifb:vid0=720x576x16,2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=pal console=ttyS0,115200n8 noinitrd rw ip=dhcp root/dev/nfs nfsroot=192.168.171.89:/home/ferhat_olgun/workdir/filesys,nolcok mem=120M
PID hash table entries: 512 (order: 9, 8192 bytes)
Console: colour dummy device 80x30
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 120MB = 120MB total
Memory: 118272KB available (2656K code, 529K data, 180K init)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
spawn_desched_task(00000000)
desched cpu_callback 3/00000000
ksoftirqd started up.
desched cpu_callback 2/00000000
desched thread 0 started up.
NET: Registered protocol family 16
DaVinci: 71 gpio irqs
Registering platform device 'serial8250.0'. Parent at platform
Registering platform device 'musb_hdrc'. Parent at platform
Registering platform device 'mmc.0'. Parent at platform
DaVinci I2C DEBUG: 10:01:56 Jun 16 2009
Registering platform device 'i2c'. Parent at platform
ch0 default output "COMPOSITE", mode "PAL"
MUX: initialized LOEEN
MUX: initialized LFLDEN
VPBE Encoder Initialized
LogicPD encoder initialized
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
musb_hdrc: version 2.2a/db-0.4.8 [cppi-dma] [host] [debug=0]
musb_hdrc: ConfigData=0x06 (UTMI-8, dyn FIFOs, SoftConn)
musb_hdrc: MHDRC RTL version 1.300
musb_hdrc: USB Host mode controller at c8002000 using DMA, IRQ 12
musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
MUX: initialized MCBSP0
JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
yaffs Jun 16 2009 10:00:34 Installing.
Registering platform device 'davincifb.0'. Parent at platform
davincifb davincifb.0: dm_osd0_fb: 720x576x16@0,0 with framebuffer size 2025KB
davincifb davincifb.0: dm_vid0_fb: 720x576x16@0,0 with framebuffer size 2500KB
davincifb davincifb.0: dm_osd1_fb: 720x576x4@0,0 with framebuffer size 810KB
davincifb davincifb.0: dm_vid1_fb: 720x576x16@0,0 with framebuffer size 2500KB
watchdog: TI DaVinci Watchdog Timer: timer margin 64 sec
Registering platform device 'davinci_resizer.2'. Parent at platform
Registering platform device 'davinci_previewer.2'. Parent at platform
Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled
Registering platform device 'serial8250'. Parent at platform
ttyS0 at MMIO 0x1c20000 (irq = 40) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
RAMDISK driver initialized: 1 RAM disks of 32768K size 1024 blocksize
loop: loaded (max 8 devices)
Registering platform device 'ti_davinci_emac'. Parent at platform
TI DaVinci EMAC: MAC address is 00:0e:99:02:5a:92
TI DaVinci EMAC Linux version updated 5.0
TI DaVinci EMAC: Installed 1 instances.
netconsole: not configured, aborting
i2c /dev entries driver
Linux video capture interface: v1.00
Registering platform device 'vpfe.1'. Parent at platform
DaVinci I2C WARNING: i2c: NACK detected
DaVinci I2C WARNING: i2c: NACK detected
DaVinci I2C WARNING: i2c: NACK detected
DaVinci I2C WARNING: i2c: NACK detected
DaVinci I2C WARNING: i2c: NACK detected
vpfe vpfe.1: DaVinci v4l2 capture driver V1.0 loaded
Registering platform device 'DavinciDisplay.1'. Parent at platform
Trying to register davinci display video device.
layer=c77f0c00,layer->video_dev=c77f0d64
Trying to register davinci display video device.
layer=c77f0a00,layer->video_dev=c77f0b64
davinci_init:DaVinci V4L2 Display Driver V1.0 loaded

 Davici AEW Driver cannot be loaded
 VIDEO PORT is not enabledData Flow path from CCDC is disabled

 Davinci AF driver cannot be loaded
 VIDEO PORT is not enabled
 CCDC needs to be configured<6>Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
MUX: initialized HDIREN
MUX: initialized ATAEN
hda: TOSHIBA MK4032GAX, ATA DISK drive
elevator: using anticipatory as default io scheduler
ide0 at 0xe10661f0-0xe10661f7,0xe10663f6 on irq 22
hda: max request size: 1024KiB
hda: 78140160 sectors (40007 MB), CHS=16383/255/63
 hda: hda1 hda2
    ide0: BM-DMA at 0xe1066000-0xe1066007, BIOS settings: hda:pio, hdb:pio
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
mice: PS/2 mouse device common for all mice
mmc mmc.0: Supporting 4-bit mode
mmc mmc.0: Using DMA mode
Registering platform device 'davinci-audio.0'. Parent at platform
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Sending DHCP requests ., OK
IP-Config: Got DHCP answer from 0.0.0.0, my address is 192.168.184.70
IP-Config: Complete:
      device=eth0, addr=192.168.184.70, mask=255.255.192.0, gw=192.168.128.200,
     host=192.168.184.70, domain=karelarge.com, nis-domain=(none),
     bootserver=0.0.0.0, rootserver=192.168.171.89, rootpath=
Looking up port of RPC 100003/2 on 192.168.171.89
Looking up port of RPC 100005/1 on 192.168.171.89
VFS: Mounted root (nfs filesystem).
Freeing init memory: 180K
INIT: version 2.85 booting
Mounting a tmpfs over /dev...done.
Creating initial device nodes...done.
Activating swap...done.
Remounting root filesystem...done.
Calculating module dependencies
Loading modules:
Checking all file systems: fsck
fsck 1.35 (28-Feb-2004)
Mounting local filesystems: mount nothing was mounted
Cleaning: /tmp /var/lock /var/run done.
Setting up networking (ifupdown) ..
Cleaning: /etc/network/run/ifstate done.
Starting network interfaces: done.
Starting hotplug subsystem:
   pci    
   pci      [success]
   usb    
   usb      [success]
   isapnp 
   isapnp   [success]
   ide    
   ide      [success]
   input  
   input    [success]
   scsi   
   scsi     [success]
done.
Starting portmap daemon: portmap.
done.
Setting pseudo-terminal access permissions...done.
Updating /etc/motd...done.
INIT: Entering runlevel: 3
Starting NFS common utilities: statd lockd.
Starting internet superserver: inetd.
Starting MontaVista target tools daemon: mvltdmvltd version 2.1 MontaVista Software,Inc.
mvltd[1043]: started on port 34577
.
MontaVista(R) Linux(R) Professional Edition 4.0.1 (0600980)

192.168.184.70 login: root
Last login: Sun Feb  1 01:48:33 2004 on console
Linux 192.168.184.70 2.6.10_mvl401 #2 Wed Jun 17 09:46:47 EEST 2009 armv5tejl GNU/Linux

Welcome to MontaVista(R) Linux(R) Professional Edition 4.0.1 (0600980).

root@192.168.184.70:~# cd ..
root@192.168.184.70:/# cd opt/dvsdk/fbdev_loop/
root@192.168.184.70:/opt/dvsdk/fbdev_loop# ./fbdev_loop -v 0 -c 200&
[1] 1055
root@192.168.184.70:/opt/dvsdk/fbdev_loop# getopt returns 118
vidid is 0
opening VID0
getopt returns 99
getopt returns -1
mode:PAL        output:COMPOSITE
mode is PAL
Setting PAL DISPLAY
initializing capture device
Default crop capbility bounds - 0 0 720 576 ; default - 0 0 720 576
setting data format
SetDataFormat:setting std to auto select
SetDataFormat:ioctl:VIDIOC_QUERYSTD:
SetDataFormat:setting data format
SetDataFormat:finally negotiated width:720 height:576
initializing capture buffers
initializing display device
Initializing VID0
mmap VID0
VID0 Display buffer 1 mapped to address 0x40499800
VID0 Display buffer 2 mapped to address 0x40564000