I'm not doing a whole lot of power processing. Just mjpg or h.264 then ship it out. I didn't think the leopard board was open source? Thx
JHL -------- Original message -------- From: Joe Pulver <[email protected]> Date: 11/25/2013 4:39 PM (GMT-05:00) To: [email protected] Cc: [email protected] Subject: Re: Using LI-VI365 (tvp5146x chip) with Beagleboard xmC Sorry to report, I moved on to something new. I never got the LI-VI365 working with the Beagleboard-XM. I did write some capture software using the board with a Leopard DM365, but that might not be powerful enough for your needs. Joe On Monday, November 25, 2013 3:59:23 PM UTC-5, [email protected] wrote: Hi Joe, I am looking to setup this same configuration. I noticed that 4 of the wires from the LI-VI365 are either grounded or powered on the beagleboard. I planned on lifting and terminating these with 1M resistors to open them up. I haven't looked througouly through the DVP5146 datasheet yet, but I'm assuming that the MSBs can just be hooked up. The rest of the pins look right. I would like to see where you have gotten on this, and if perhaps we could share resources to get this working (if you are still working on it.) Thanks, Jeff On Thursday, June 9, 2011 12:03:20 PM UTC-4, Joe Pulver wrote: I am trying to use the LI-VI365 board with my beagleboard xmC. After several failed attempts, I have come here hoping for a push in the right direction. Attempt 1: Prebuilt images. I tried several prebuilt images (angstrom, ubuntu maverick, ubuntu natty), but none had the TVP514x module built by default. Attempt 2: Build My Own Kernel In Angstrom( http://www.angstrom-distribution.org/building-angstrom): I ran bitbake virtual/kernel -c menuconfig. Built TVP514x into kernel. I believe the v4l2 support is built into the kernel as well. On boot I see "Linux video capture interface: v2.00", but no output from the tvp514x driver. No /dev/video Ubuntu build (http://www.elinux.org/BeagleBoard_Ubuntu_ %26_DSP_From_Sources): i built the tvp514x as a module. V42L is built as a module by default. The modprobe command loaded the v4l2_common and videodev modules. dmesg reported ("Linux video capture interface: v2.00". No /dev/video. No output from the tvp514x driver. Attempt 3: Modifying the kernel source. Compared to the Ubuntu kernel source, the Angstrom kernel source appears to have more camera support in the board-omap3beagle.c file. Angstrom also has a file board-omap3beagle-camera.c that does not exist in the ubuntu kernel source. So I started from the angstrom kernel source (in the work directory), and tried to add support for the tvp514x driver. In board-omap3beagle.c, I added some include statements (~ Line 80) #if defined(CONFIG_VIDEO_TVP514X) || defined(CONFIG_VIDEO_TVP514X_MODULE) #include <media/v4l2-int-device.h> #include <media/tvp514x.h> extern struct tvp514x_platform_data tvp514x_pdata; #endif I added a struct (~Line 765): static struct i2c_board_info __initdata beagle_tvp514x_i2c2_boardinfo[] = { #if defined(CONFIG_VIDEO_TVP514X) || defined(CONFIG_VIDEO_TVP514X_MODULE) { I2C_BOARD_INFO("tvp5146", 0x5d), .platform_data = &tvp514x_pdata, }, #endif }; And I added an else if clause to static int __init omap3_beagle_i2c_init(void) method : } else if (!strcmp(cameraboard_name, "tvp514x")) { printk(KERN_INFO "Beagle cameraboard:" " registering i2c2 bus for tvp514x\n"); omap_register_i2c_bus(2, 400, beagle_tvp514x_i2c2_boardinfo, ARRAY_SIZE(beagle_tvp514x_i2c2_boardinfo)); } else { Then the kernel build failed to link, so I added this to board- omap3beagle-camera.c (~ Line 208): #if defined(CONFIG_VIDEO_TVP514X) || defined(CONFIG_VIDEO_TVP514X_MODULE) #include <media/tvp514x.h> struct tvp514x_platform_data tvp514x_pdata; #endif At this point I could build and run the kernel. It was last week, so I hope I didn't forget something. Now, when I boot, in dmesg I see the "Beagle cameraboard:registering i2c2 bus for tvp514x", and the output from tvp514x.c method tvp514x_probe() that says ""decoder driver registered !!\n". But still no /dev/video. That's where I'm at now. My goal is write a simple audio / video capture application for the beagleboard, grabbing video from the composite input on the LI-VI365 board. I really do not care which linux I use, or which drivers. I just need anything that will get video frames from this device. Eventually I'll need audio playback / capture, but for now I'll be happy with video. Where do I go from here? 1. Am I on the right path (Angstrom distro, modify board- omap3beagle.c)? What else do I need to do to get /dev/video to appear. 2. Should I try a newer kernel? If Yes, do I build DISTRO=angstrom-2010.x, or add these two lines to sources/openembedded/ conf/distro/angstrom-2008.1.conf? PREFERRED_PROVIDER_virtual/kernel_beagleboard = "linux-omap" PREFERRED_VERSION_linux-omap_beagleboard = "2.6.37" I found those in a previous post( http://groups.google.com/group/beagleboard/browse_thread/thread/16da182bc8637f25 ). I am not sure why the poster changed linux-omap-psp to linux-omap. 3. Should I be using source found here (http://gitorious.org/ omap3camera/) and something called media-ctl? I have seen a few references to the media controller framework (heres one, http://www.mail-archive.com/[email protected]/msg19229.html ), but I do not fully understand how it fits into the V4L2 device , sub device, setup. Or what is obsolete, and what is not. What exactly does the chain of drivers I need to link look like? V4L2 - > ?? -> tvp514x I apologize for all the questions and the lengthy write up. As you can tell, I'm quite confused about how all these parts come together to form one working video capture device. Any help would be greatly appreciated. Thank you in advance for any help. Joe -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
