----------------------------------------------------------------- | | | Aptina ap0100 image processor linux driver release | | | ----------------------------------------------------------------- Release notes for the Aptina ap0100 image linux driver. This document contains information on how to download the OS, build the driver/OS and how to use the processor. Please read this document before posting questions to the drivers@aptina.com e-mail address. ap0100 Driver -------------- The ap0100 driver is a Video for Linux 2 (V4L2) driver that is compiled into the Beagleboard-xM Linux Angstrom distribution. It is distributed under the GNU General Public License agreement which can be obtained from Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA02139, USA. TARGET HARDWARE/SOFTWARE ------------------------ - Beagleboard-xM Rev B. - Linux Angstrom Distribution, kernel release 2.6.32. - Aptina Beagleboard-XM Adapter/Revision 0 and ap0100 processor. DRIVER SOURCE CODE FILES ------------------------ Driver files and directory locations are listed below: ap0100.c, Makefile, and Kconfig are located at: kernel-2.6.32/drivers/media/video ap0100.h is located at: kernel-2.6.32/include/media board-omap3beagle.c and board-omap3beagle-camera.c are located at: kernel-2.6.32/arch/arm/mach-omap2 BEAGLEBOARD/ANGSTROM SETUP -------------------------- For general beagleboard setup, please see the following link: http://code.google.com/p/beagleboard/wiki/HowToGetAngstromRunning Many of the Beagleboard/Angstrom files can be found at the following link: http://www.angstrom-distribution.org/demo/beagleboard/ The Linux kernel source code tar file beagleboard-validation-linux-beaglebardXM-camwork.tar.gz can be found at the following location: http://gitorious.org/beagleboard-validation/linux/trees/beaglebardXM-camwork Once downloaded, uncompress the file with the following command: $tar zxvf beagleboard-validation-linux-beaglebardXM-camwork.tar.gz Ignore the error messages if any. Download and install the compilation tool chain from: http://www.angstrom-distribution.org/toolchains/ For Intel i686 Linux desktop PC platforms, the tar toolchain file is: angstrom-2011.03-i686-linux-armv7a-linux-gnueabi-toolchain.tar.bz2 PREPARING SD-CARD ----------------- Download mkcard.sh from: http://gitorious.org/beagleboard-validation/scripts/trees/60f43aeb22e5ce799eda06c82e7d36d3f04cf7d2 Format & partition the sd-card at /dev/sdb (the actual drive mounts listed here may be different on your host system) $sudo $Beagleboard/binaries/mkcard.sh /dev/sdb This creates two partitions: /dev/sdb1 and /dev/sdb2, which are FAT32 and ext2 file formats respectively. LINUX KERNEL CONFIGURATION/COMPILATION -------------------------------------- Copy ap0100 related files into the kernel directories: $cp your_ap0100_driver_directory/board-omap3beagle.c ./arch/arm/mach-omap2 $cp your_ap0100_driver_directory/board-omap3beagle-camera.c ./arch/arm/mach-omap2 $cp your_ap0100_driver_directory/ap0100.c ./drivers/media/video $cp your_ap0100_driver_directory/Makefile ./drivers/media/video $cp your_ap0100_driver_directory/Kconfig ./drivers/media/video $cp your_ap0100_driver_directory/ap0100.h ./include/media At the root directory of Linux kernel source files, enter the commands: $make ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi- distclean $make ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi- omap3_beagle_cam_defconfig $make ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi- menuconfig In menuconfig, enable the ap0100 driver. The ap0100 driver configuration is at the following location: "Device Drivers"-->"Multimedia support"-->"Video capture adapters"-->"Encoders/decoders and other helper chips" Select "ap0100 support" as either <*> Aptina AP0100 IMAGE PROCESSOR so that the driver is part of kernel image, or Aptina AP0100 IMAGE PROCESSOR which configures the ap0100 driver as a loadable module. Note: other image sensors (such as the MT9V011 or MT9P012) should be de-selected. Enable/Disable ap0100 driver compilation options that are located in the ap0100.c file: ap0100_DEBUG - Define this to enable SYSFS sensor register access and debug printk support Undefine this for a driver release. Compile the kernel: $make ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi- uImage and compile the ap0100 driver separately if it is configured as a loadable module $make ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi- modules Copy the kernel image to the SD card FAT partition: $cp arch/arm/boot/uImage /media/boot Copy the u-boot and x-loader images to the SD card FAT partition: $cp MLO /media/boot/ $cp u-boot.bin /media/boot/ Prebuilt versions of MLO and u-boot.bin can be downloaded from the following location: http://www.angstrom-distribution.org/demo/beagleboard/ Download the file-system file Angstrom-Beagleboard-demo-image-glibc-ipk-2011.1-beagleboard.rootfs.tar.bz2 from the following location: http://www.angstrom-distribution.org/demo/beagleboard/ Uncompress the file-system and copy it to the SD card EXT3 partition $sudo tar -C /media/Angstrom -xjvf Angstrom-Beagleboard-demo-image-glibc-ipk-2011.1-beagleboard.rootfs.tar.bz2 Copy the driver to the EXT3 partition if the mt9pd131 driver is configured as a loadable module $cp drivers/media/video/ap0100.ko /media/Anstrom/home/root Then umount the card $sync; sudo umount /media/* Once the kernel and file-system are copied to the SD card, insert the SD card into the Beagleboard and power it on. BOOT UP BEAGLEBOARD ------------------- Follow the standard procedures to boot up the Beagleboard. If the sensor driver is configured as a loadable module, it needs to be inserted manually: #cd /home/root #insmod ap0100.ko ap0100 SUPPORTED OUTPUT FRAME SIZES ------------------------------------ width=1280, height=720 ap0100 SUPPORTED OUTPUT FRAME FORMATS ------------------------------ UYVY(Cb-Y-Cr-Y)