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Re: DDE USB performance
by tapas kundu 18 Apr '09

18 Apr '09

Hi Dirk, sry 4 double posting.... I want dont know what you people exactly mean by double post ? Can I ask two questions in a single day on two diffrent topics? I want to measure usb performance. Could you please tell me how can I measure usbcam performance in terms of data transfer rate? Thanks Tapas On Sat, Apr 18, 2009 at 5:25 AM, Shakthi Kannan <shakthimaan(a)gmail.com>wrote: > Hi, > > You are repeatedly top-posting. Please don't do that in a mailing list! > http://en.wikipedia.org/wiki/Posting_style#Top-posting > > You need to use bottom-posting. > http://en.wikipedia.org/wiki/Posting_style#Bottom-posting > > For web camera software, try looking at Gnome Cheese program. > > SK > > -- > Shakthi Kannan > http://www.shakthimaan.com >

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Re: please help ..The New DDE_USB is giving compilation errors...
by tapas kundu 17 Apr '09

17 Apr '09

Hi Dirk, I am trying to add driver for sn9c102 based webcams. I have included all the srource files from directory l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102 in MAKEFILE of SRC directory. In linking stage , it says that it cant find some refrences to param_set_bool' , 'vm_insert_page' , 'vmalloc_32_user' , 'dev_name', 'complete_all' . Should I add some static library in makefile which I have found under SRC directory of USBCAM. Please notice that it is not giving any error in compiliation stage of diffferent object files. It gives error only in linking stage of usbcam.o . Please help me . Thanks Tapas ... Compiling linux/drivers/media/video/sn9c102/sn9c102_core.o LD_PRELOAD=/home/tapas/11thAprilUserBuild/tool/gendep/libgendep.so GENDEP_TARGET=linux/drivers/media/video/sn9c102/sn9c102_core.o GENDEP_BINARY=cc1 gcc -m32 -c -include linux/autoconf.h -include linux/autoconf.h -DLINUX_VERSION_CODE=849221 -DKERN_CONT="" -D"KERNEL_VERSION(a,b,c)=(((a) << 16) + ((b) << 8) + (c))" -DDDEUSB26_GADGET -DCONFIG_USB_GSPCA_MODULE=1 -DVID_HARDWARE_GSPCA=0xFF -DDEBUG -D__KERNEL__ -DDDE_LINUX -DGSPCA_VERSION=\"01.00.20\" -DCONFIG_VIDEO_V4L1_COMPAT -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR( sn9c102_core)" -D"KBUILD_MODNAME=KBUILD_STR( linux/drivers/media/video/sn9c102/sn9c102_core)" -D__KERNEL__ -DDDE_LINUX -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR( sn9c102_core)" -D"KBUILD_MODNAME=KBUILD_STR( linux/drivers/media/video/sn9c102/sn9c102_core)" -DUSE_UCLIBC=y -DRAM_BASE=0x0 -DSYSTEM_x86_586_l4v2 -DARCH_x86 -DCPUTYPE_586 -DL4API_l4v2 -DCONFIG_L4_CALL_SYSCALLS -DCONFIG_L4_ABS_SYSCALLS -I/home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/v4l -I/home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/include -I/home/tapas/Latesttudos/l4/pkg/usb/linux26/include -I/home/tapas/11thAprilUserBuild/include/x86/l4/dde/linux26 -I/home/tapas/11thAprilUserBuild/include/l4/dde/linux26 -I/home/tapas/11thAprilUserBuild/include/l4/dde/linux26/linux-headers/asm-i386/mach-default -I/home/tapas/11thAprilUserBuild/include/x86/l4/dde/linux26/linux-headers -I/home/tapas/11thAprilUserBuild/include/l4/dde/linux26/linux-headers -I/home/tapas/11thAprilUserBuild/include/uclibc -I/home/tapas/Latesttudos/l4/pkg/usb/server/include -I/home/tapas/11thAprilUserBuild/include/x86/l4/dde/linux26 -I/home/tapas/11thAprilUserBuild/include/l4/dde/linux26 -I/home/tapas/11thAprilUserBuild/include/l4/dde/linux26/linux-headers/asm-i386/mach-default -I/home/tapas/11thAprilUserBuild/include/x86/l4/dde/linux26/linux-headers -I/home/tapas/11thAprilUserBuild/include/l4/dde/linux26/linux-headers -I/home/tapas/11thAprilUserBuild/pkg/usb/idl/OBJ-x86-l4v2 -I/home/tapas/11thAprilUserBuild/include/x86/l4v2 -I/home/tapas/11thAprilUserBuild/include/l4v2 -I/home/tapas/11thAprilUserBuild/include/x86 -I/home/tapas/11thAprilUserBuild/include -I/home/tapas/Latesttudos/l4/../dice/include -I/home/tapas/drops/include/x86/l4v2 -I/home/tapas/drops/include/l4v2 -I/home/tapas/drops/include/x86 -I/home/tapas/drops/include -nostdinc -I/usr/lib/gcc/i486-linux-gnu/4.3.2/include -I/usr/lib/gcc/i486-linux-gnu/4.3.2/include-fixed -ffunction-sections -gstabs+ -g -O2 -fno-strict-aliasing -march=i586 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wno-unused -Wno-pointer-sign -fno-common -fno-stack-protector /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c -o linux/drivers/media/video/sn9c102/sn9c102_core.o In file included from /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:24, from /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c:41: /home/tapas/11thAprilUserBuild/include/l4/dde/linux26/linux-headers/linux/version.h:1:1: warning: "LINUX_VERSION_CODE" redefined <command-line>: warning: this is the location of the previous definition In file included from /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:41, from /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c:41: /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/v4l/compat.h:7:1: warning: "LINUX_VERSION_CODE" redefined In file included from /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:24, from /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c:41: /home/tapas/11thAprilUserBuild/include/l4/dde/linux26/linux-headers/linux/version.h:1:1: warning: this is the location of the previous definition /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c: In function ‘sn9c102_vidioc_querycap’: /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c:2169: warning: implicit declaration of function ‘dev_name’ /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c:2170: warning: passing argument 2 of ‘strlcpy’ makes pointer from integer without a cast /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c: In function ‘sn9c102_module_exit’: /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102_core.c:3447: warning: implicit declaration of function ‘libddeusb26_deregister_driver’ ==> Linking usbcam LD_PRELOAD=/home/tapas/11thAprilUserBuild/tool/gendep/libgendep.so GENDEP_TARGET=usbcam GENDEP_BINARY=ld GENDEP_BINARY_ALT1=ld ld -m elf_i386 -o usbcam /home/tapas/11thAprilUserBuild/lib/x86_586/crt0.o main.o support.o usbcam.o libv4lconvert/bayer.o libv4lconvert/jidctflt.o libv4lconvert/pac207.o libv4lconvert/spca501.o libv4lconvert/crop.o libv4lconvert/libv4lconvert.o libv4lconvert/rgbyuv.o libv4lconvert/spca561-decompress.o libv4lconvert/flip.o libv4lconvert/sn9c10x.o libv4lconvert/sq905c.o libv4lconvert/hm12.o libv4lconvert/mr97310a.o libv4lconvert/sn9c20x.o libv4lconvert/tinyjpeg.o linux/drivers/media/video/v4l2-common.o linux/drivers/media/video/v4l1-compat.o linux/drivers/media/video/v4l2-device.o linux/drivers/media/video/v4l2-ioctl.o linux/drivers/media/video/cpia.o linux/drivers/media/video/cpia_usb.o linux/drivers/media/video/gspca/gspca.o linux/drivers/media/video/gspca/spca500.o linux/drivers/media/video/gspca/spca501.o linux/drivers/media/video/gspca/spca505.o linux/drivers/media/video/gspca/spca506.o linux/drivers/media/video/gspca/spca508.o linux/drivers/media/video/gspca/spca561.o linux/drivers/media/video/gspca/zc3xx.o linux/drivers/media/video/sn9c102/sn9c102_core.o linux/drivers/media/video/sn9c102/sn9c102_hv7131d.o linux/drivers/media/video/sn9c102/sn9c102_hv7131r.o linux/drivers/media/video/sn9c102/sn9c102_mi0343.o linux/drivers/media/video/sn9c102/sn9c102_mi0360.o linux/drivers/media/video/sn9c102/sn9c102_mt9v111.o linux/drivers/media/video/sn9c102/sn9c102_ov7630.o linux/drivers/media/video/sn9c102/sn9c102_ov7660.o linux/drivers/media/video/sn9c102/sn9c102_pas106b.o linux/drivers/media/video/sn9c102/sn9c102_pas202bcb.o linux/drivers/media/video/sn9c102/sn9c102_tas5110c1b.o linux/drivers/media/video/sn9c102/sn9c102_tas5110d.o linux/drivers/media/video/sn9c102/sn9c102_tas5130d1b.o -Ttext=0x3010000 --hash-style=sysv -L/home/tapas/11thAprilUserBuild/lib/x86_586/l4v2 -L/home/tapas/11thAprilUserBuild/lib/x86_586 -L/home/tapas/11thAprilUserBuild/lib -L/home/tapas/drops/lib/x86_586/l4v2 -L/home/tapas/drops/lib/x86_586 -L/home/tapas/drops/lib -T/home/tapas/11thAprilUserBuild/lib/x86_586/main_stat.ld -ll4dope -lvscreen --whole-archive -lddeusb26 --no-whole-archive -lddeusb -lusb_core_client -ldde_linux26 -lddekit -lio -lomega0 -llist_alloc -static -lgeneric_ts -ll4env -ll4rm -ldm_generic -ldm_mem -lthread -lsemaphore -llogserver_capsule -lnames -ll4util_root -ll4util -lsigma0 -lroot -ll4env -ll4env_err -ll4rm -ldm_generic -ldm_mem -lthread -lslab -ll4sys -nostdlib -luc_c -luclibc_support -u mmap_anon -lc_be_simple_mem -lc_be_mmap -lc_be_mmap_util -lc_be_l4env_start_stop -lc_be_minimal_log_io -luc_be_simple_sleep -ll4env -llogserver_capsule -ll4rm -ldm_generic -ldm_mem -lthread -lgeneric_ts -luc_c /usr/lib/gcc/i486-linux-gnu/4.3.2/libgcc.a -luc_c -ll4sys -Ttext=0x3010000 --warn-common -gc-sections linux/drivers/media/video/sn9c102/sn9c102_core.o: In function `sn9c102_match_id': /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `param_set_bool' /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `param_get_bool' /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `vm_insert_page' /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `vmalloc_32_user' /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `dev_name' /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `complete_all' /home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video/sn9c102/sn9c102.h:144: undefined reference to `complete_all' make[6]: *** [usbcam] Error 1 make[6]: Leaving directory `/home/tapas/11thAprilUserBuild/pkg/usb/examples/usbcam/src/OBJ-x86_586-l4v2' make[5]: *** [/home/tapas/11thAprilUserBuild/pkg/usb/examples/usbcam/src/OBJ-x86_586-l4v2] Error 2 make[5]: Leaving directory `/home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam/src' make[4]: *** [src] Error 2 make[4]: Leaving directory `/home/tapas/Latesttudos/l4/pkg/usb/examples/usbcam' make[3]: *** [usbcam] Error 2 make[3]: Leaving directory `/home/tapas/Latesttudos/l4/pkg/usb/examples' make[2]: *** [examples] Error 2 make[2]: Leaving directory `/home/tapas/Latesttudos/l4/pkg/usb' make[1]: *** [usb.bin] Error 2 make[1]: Leaving directory `/home/tapas/Latesttudos/l4/pkg' root@tapas-laptop:/home/tapas/Latesttudos/l4# On Tue, Apr 14, 2009 at 2:04 PM, Dirk Vogt <dvogt(a)os.inf.tu-dresden.de>wrote: > Hi Tapas, > > You have incuded CPIA , GSPCA and UVC drivers in make file of SRC > > directory . I think that all the drivers that you have incuded in make > > file should work . Please correct me if I am not correct. The UVC > > driver for my laptop is not working . I am trying to make it work. > > I tried the UVC driver, but unfortunately this driver does not support > video capturing trough the read system call. To make it work you have > to add the code for capturing video through shared memory. You should > have a look into the the V4L2 documentation for that. > > Ciao, Dirk. > > > >

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IPC transfer message question.
by Suresh Iyer 16 Apr '09

16 Apr '09

I am working on some modifying IPC behaviour for an alternative scheduling mechanism based on temporal partioning. I had a question related to L4 embedded IPC transfer message part ( I dont know whether this could be an L4 generic question ). In the IPC implementation for l4 embedded , i see that the data is transferred only( ie transfer_messsge called ) only during a send phase of the code. Does this have to be the case ? In other words, lets assume A is sending to B and B is not ready to receive.. If we switch to B , and the code reaches Bs receive phase, cant B transfer the data from As utcb to Bs utcb by calling transfer_message of L4ka ? or do we have to switch back to A to make the transfer message happen ? The L4 embedded code seems to be doing this . Any reasons for this ? would really appreciate a prompt answer, Thanks so much !! suresh.

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Re: l4-hackers Digest, Vol 72, Issue 18
by tapas kundu 15 Apr '09

15 Apr '09

Hi Dirk, I am trying to build a usb webcam driver. I have got an compiler waring that "LINUX_VERSION_CODE" is defined in multiple places. Could you please tell me which linux version headers you have emulated in dde_usb ? Thanks Tapas On Tue, Apr 14, 2009 at 8:46 PM, <l4-hackers-request(a)os.inf.tu-dresden.de>wrote: > Send l4-hackers mailing list submissions to > l4-hackers(a)os.inf.tu-dresden.de > > To subscribe or unsubscribe via the World Wide Web, visit > http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers > or, via email, send a message with subject or body 'help' to > l4-hackers-request(a)os.inf.tu-dresden.de > > You can reach the person managing the list at > l4-hackers-owner(a)os.inf.tu-dresden.de > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of l4-hackers digest..." > > > Today's Topics: > > 1. Re: please help ..The New DDE_USB is giving compilation > errors... (tapas kundu) > 2. Re: NAPI and libdde_linux26_net (Alexander Valitov) > 3. Re: NAPI and libdde_linux26_net (Bj?rn D?bel) > 4. Re: please help ..The New DDE_USB is giving compilation > errors... (Dirk Vogt) > 5. Re: please help ..The New DDE_USB is giving compilation > errors... (tapas kundu) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 14 Apr 2009 13:19:00 +0100 > From: tapas kundu <tapaskundu1(a)gmail.com> > To: Dirk Vogt <dvogt(a)os.inf.tu-dresden.de> > Cc: l4-hackers(a)os.inf.tu-dresden.de > Subject: Re: please help ..The New DDE_USB is giving compilation > errors... > Message-ID: > <7aa997020904140519q62031406p84220da0c10d99a2(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi Dirk, > Thanks for ur kind help. Could you please tell me how can I > debug signals received from camera.. Can I activate debugger console by > pressing some keys. I want to print some text output (using printf) on > console from camera .. so that I can debug my camera codes. > > By the way , I have found uvc driver and also other drivers under directory > l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video > > You have incuded CPIA , GSPCA and UVC drivers in make file of SRC directory > . I think that all the drivers that you have incuded in make file should > work . Please correct me if I am not correct. The UVC driver for my laptop > is not working . I am trying to make it work. > > Thanks > Tapas > > On Tue, Apr 14, 2009 at 10:51 AM, Dirk Vogt <dvogt(a)os.inf.tu-dresden.de > >wrote: > > > Hi, > > I tested usbcam with the following webcams: > > > > 046d:08ad Logitech, Inc. QuickCam Communicate STX > > 0553:0002 STMicroelectronics Imaging Division (VLSI Vision) CPiA WebCam > > > > Ciao, Dirk > > > > > > >

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Re: please help ..The New DDE_USB is giving compilation errors...
by tapas kundu 14 Apr '09

14 Apr '09

Hi, Thanks for your help. Usb mouse is working now!! .. I have gone throush USB CAM folder. Could you please tell me which file contains usb driver for your CPIA webcam. I have seen 1 folder named "contrib" under usbcam directory. I think that it contains lots of linux usb webcam drivers under directory "l4/pkg/usb/examples/usbcam/contrib/linux/drivers/media/video" . I didn't understand make files in every directory. Could you please explain compilation procedure without using make files. What is the use of contrib directory under usbcam folder? Please let us know which files are responisble for usb webcam device driver function. I am a beginner . Please help me. Thanks Tapas On Fri, Apr 10, 2009 at 4:43 PM, Dirk Vogt <dvogt(a)os.inf.tu-dresden.de> wrote: > Hi, > >> 1) For usb camera a dope has started and a small menu has came showing >> "usbcam" and "exit". But it is not showing anything when I am clicking >> on usbcam. > > That's the normal behavior of usbcam, when it does not find a usbcam. > > However you should see in the debugging console that usbcore and have > usbcam are initialized. > > When usbcam recognizes a new cam, a new button video0 will appear. By > clicking this button usbcam will start the video capture. > > >> 2) For usbhid , we have connected a usb mouse . But it was not >> working. Here is the menu.lst , I have used for usb mouse. > > It seems you forgot to put usbcore into your menu.lst. Remember, DDEUSB > uses a client/server approach to offer USB functionality. The usbcore > is the only one to touch the host-controller hardware and thus needed > for all other USB drivers. > > >> Please know that we have a plan to add support for new webcams . >> Please let us know following information : >> >> 1) Please provide us the menu.lst which you have used for usbcam and usbhid. > > They do not differ much from yours. > > >> 2) I have found following files under directory >> "/home/tapas/10AprilUserbuild/source/pkg/usb/examples/usbcam/src" >> main.c , support.c , usbcam.c and libv4lconvert (directory) > > Actually usbcam.c is just containing the gui and the v4l and v4l2 > capturing code. The first should be documented somewhere in the dope > package and for the second there is plenty of documentation including > small examples spread all over the world wide web. > > the libv4lconvert was taken from libv4l [1] and was needed to convert > the data from the video device from e.g. jpeg to the vscreen's pixel > format. Further, support.c implements some functions the were needed by > linux kernel part of V4L. > > If you have a look at the makefile, you can probably see how to add > support for new usbcams. > > Good luck, > Dirk. > > > [1] http://freshmeat.net/projects/libv4l > > >

2 6

NAPI and libdde_linux26_net
by Alexander Valitov 14 Apr '09

14 Apr '09

Hi, Does libdde_linux26_net support NAPI? >From the first glance it doesn't. Do you have plans about adding NAPI support? Some Linux network drivers don't have 'no NAPI' mode. So couldn't be used 'as is' in ORe. Situation may get worse in the future. Best Regards, Alexander Valitov -- View this message in context: http://www.nabble.com/NAPI-and-libdde_linux26_net-tp23022198p23022198.html Sent from the L4 mailing list archive at Nabble.com.

2 5

ORe and HW MAC assignment
by Alexander Valitov 13 Apr '09

13 Apr '09

Hi, For some reason ORe have only one global flag 'device_mac_available', not per each 'net_device'. So if you've got several NIC's and tries to open them all with 'ro_keep_device_mac' set (get HW MAC if possible): open("eth0") - will succeed open("eth1") - will fail (Virtual MAC returned) open("eth2") - will fail ...so on... Is it necessary requirement to have only one HW MAC been assigned? Best Regards, Alexander Valitov -- View this message in context: http://www.nabble.com/ORe-and-HW-MAC-assignment-tp23021902p23021902.html Sent from the L4 mailing list archive at Nabble.com.

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help: which sdk support s3c2410 board?
by zhhwu＠shu.edu.cn 11 Apr '09

11 Apr '09

hi all: on this web(http://wiki.ok-labs.com/FrontPage), i find 4 SDKs for ARM, ARM926ejs 3.0 ARM1136js 3.0 ARM920t 3.0 XScale 3.0 which package of these four, can run on skyeye(simulating s3c2410 board)? and what does the skyeye.conf look like?

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help: how to run PINGPONG sample on skyeye.
by zhhwu＠shu.edu.cn 11 Apr '09

11 Apr '09

i follow the steps in README. $ export OKL4_SDK_ROOT=<path/to/sdk> $ cd okl4/<arch>/examples/<example> $ make then, when i run command: skeye -c skeye.conf -e build.micro-debug\images\image.elf skyeye give errors: Bus read error, can not find corresponding bank for addr 0x????, pc=0x???? ... Bus read error, can not find corresponding bank for addr 0x20bd0, pc=0x20bd0 anybody knows how to fix this problem?

1 0

help: which sdk support s3c2410 board?
by zhhwu＠shu.edu.cn 11 Apr '09

11 Apr '09

hi all: on this web(http://wiki.ok-labs.com/FrontPage), i find 4 SDKs for ARM, ARM926ejs 3.0 ARM1136js 3.0 ARM920t 3.0 XScale 3.0 which package of these four, can run on skyeye(simulating s3c2410 board)? and what does the skyeye.conf look like?

1 0