embeded/raspberry pi2015. 8. 18. 23:44

아따.. 빡세다..


To install Weston, just issue:

    sudo apt-get update

    sudo apt-get install weston

This will install also a script called weston-launch (not the real weston-launch program), which will automatically set up XDG_RUNTIME_DIR for you and run weston. Running Weston with this package is as simple as:


    weston-launch


A too old firmware may cause rpi-backend to malfunction on Raspberry Pi. 


[링크 : http://wayland.freedesktop.org/raspberrypi.html]

    [링크 : http://archlinuxarm.org/forum/viewtopic.php?f=5&t=4975]


rpi-update는 설치가 안되서 일단 raw로 해서 다운로드

그리고 rpi-update를 위한 패키지로 두개를 설치해준다.

# apt-get install curl binutils

[링크 : https://raw.githubusercontent.com/Hexxeh/rpi-update/master/rpi-update]


설정파일에서 drm-backend.so를 바꾸라는데 흐음..

create ~/.config/weston.ini containing the following:

[core]

backend=fbdev-backend.so

[링크 : https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=102729] 


올.. 된다 ㅋㅋㅋ

# cd ~

# mkdir .config

# cd .config

# vi weston.ini

[core]

backend=fbdev-backend.so


아직 도는게 없어서인지 메모리가 후덜덜하게 조금 먹는다.

기본으로 되는게 터미널 밖에 없어서 이것저것 좀 깔아봐야 할 듯..



[링크 : https://www.mankier.com/5/weston.ini]


음.. 그럼.. 굳이 rpi-update 안해도 되려나?

Posted by 구차니
embeded/raspberry pi2015. 8. 18. 20:58

엌ㅋ 발견

이미지를 구워서 편하게 하자.img ㅋㅋㅋㅋ


계정은

root / debian


구동된게 없으니 메모리가 남아돈다. ㄷㄷ

top - 14:06:38 up 3 min,  2 users,  load average: 0.14, 0.07, 0.03

Tasks:  93 total,   1 running,  92 sleeping,   0 stopped,   0 zombie

%Cpu(s):  0.0 us,  0.5 sy,  0.0 ni, 99.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st

KiB Mem:    947424 total,    55364 used,   892060 free,     3864 buffers

KiB Swap:        0 total,        0 used,        0 free.    23760 cached Mem 


순수한(?) debian jessie 배포판이니(라즈베리용)

weston 패키지를 설치해주어야 한다.


# apt-get install weston

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following extra packages will be installed:

  colord colord-data dconf-gsettings-backend dconf-service fontconfig

  fontconfig-config fonts-dejavu-core libavahi-client3 libavahi-common-data

  libavahi-common3 libcairo2 libcolord2 libcolorhug2 libdatrie1 libdconf1

  libdrm-freedreno1 libdrm-nouveau2 libdrm-radeon1 libdrm2 libegl1-mesa

  libegl1-mesa-drivers libelf1 libevdev2 libexif12 libfile-copy-recursive-perl

  libfontconfig1 libfreetype6 libgbm1 libgd3 libgl1-mesa-dri libglapi-mesa

  libgles2-mesa libgphoto2-6 libgphoto2-l10n libgphoto2-port10 libgraphite2-3

  libgudev-1.0-0 libgusb2 libharfbuzz0b libieee1284-3 libinput5 libjbig0

  libjpeg62-turbo liblcms2-2 libllvm3.5 libltdl7 libmtdev1 libopenvg1-mesa

  libpam-systemd libpango-1.0-0 libpangocairo-1.0-0 libpangoft2-1.0-0

  libpixman-1-0 libpng12-0 libpolkit-agent-1-0 libpolkit-backend-1-0

  libpolkit-gobject-1-0 libsane libsane-common libsane-extras

  libsane-extras-common libsqlite3-0 libthai-data libthai0 libtiff5

  libtxc-dxtn-s2tc0 libusb-1.0-0 libv4l-0 libv4lconvert0 libvpx1

  libwayland-client0 libwayland-cursor0 libwayland-egl1-mesa

  libwayland-server0 libx11-xcb1 libxcb-composite0 libxcb-dri2-0

  libxcb-render0 libxcb-shape0 libxcb-shm0 libxcb-xfixes0 libxcb-xkb1

  libxcursor1 libxfixes3 libxkbcommon0 libxpm4 libxrender1 policykit-1

  sane-utils update-inetd xkb-data

Suggested packages:

  libgd-tools gphoto2 gtkam liblcms2-utils avahi-daemon hplip hpoj unpaper

The following NEW packages will be installed:

  colord colord-data dconf-gsettings-backend dconf-service fontconfig

  fontconfig-config fonts-dejavu-core libavahi-client3 libavahi-common-data

  libavahi-common3 libcairo2 libcolord2 libcolorhug2 libdatrie1 libdconf1

  libdrm-freedreno1 libdrm-nouveau2 libdrm-radeon1 libdrm2 libegl1-mesa

  libegl1-mesa-drivers libelf1 libevdev2 libexif12 libfile-copy-recursive-perl

  libfontconfig1 libfreetype6 libgbm1 libgd3 libgl1-mesa-dri libglapi-mesa

  libgles2-mesa libgphoto2-6 libgphoto2-l10n libgphoto2-port10 libgraphite2-3

  libgudev-1.0-0 libgusb2 libharfbuzz0b libieee1284-3 libinput5 libjbig0

  libjpeg62-turbo liblcms2-2 libllvm3.5 libltdl7 libmtdev1 libopenvg1-mesa

  libpam-systemd libpango-1.0-0 libpangocairo-1.0-0 libpangoft2-1.0-0

  libpixman-1-0 libpng12-0 libpolkit-agent-1-0 libpolkit-backend-1-0

  libpolkit-gobject-1-0 libsane libsane-common libsane-extras

  libsane-extras-common libsqlite3-0 libthai-data libthai0 libtiff5

  libtxc-dxtn-s2tc0 libusb-1.0-0 libv4l-0 libv4lconvert0 libvpx1

  libwayland-client0 libwayland-cursor0 libwayland-egl1-mesa

  libwayland-server0 libx11-xcb1 libxcb-composite0 libxcb-dri2-0

  libxcb-render0 libxcb-shape0 libxcb-shm0 libxcb-xfixes0 libxcb-xkb1

  libxcursor1 libxfixes3 libxkbcommon0 libxpm4 libxrender1 policykit-1

  sane-utils update-inetd weston xkb-data

0 upgraded, 92 newly installed, 0 to remove and 0 not upgraded.

Need to get 29.7 MB of archives.

After this operation, 90.8 MB of additional disk space will be used.

Do you want to continue? [Y/n] 


[링크 : https://images.collabora.co.uk/rpi2/]

    [링크 : https://www.collabora.com/about-us/blog/2015/02/03/debian-jessie-on-raspberry-pi-2/]


근데.. 실행이 안되네...

root@jessie-rpi:~# weston

Date: 2015-08-18 UTC

[14:23:33.989] weston 1.6.0

               http://wayland.freedesktop.org/

               Bug reports to: https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&component=weston&version=1.6.0

               Build: 1.5.93-5-g2858cc2 configure.ac: bump version to 1.6.0 (2014-09-19 13:40:14 +0300)

[14:23:33.990] OS: Linux, 3.18.0-trunk-rpi2, #1 SMP PREEMPT Debian 3.18.5-1~exp1.co1 (2015-02-02), armv7l

[14:23:33.990] Starting with no config file.

[14:23:33.991] Loading module '/usr/lib/arm-linux-gnueabihf/weston/x11-backend.so'

[14:23:34.006] initializing x11 backend

PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused

[14:23:36.012] fatal: failed to create compositor 



---


빌드 해야하나 -_-


deb http://raspberrypi.collabora.com wheezy rpi

$ sudo apt-get update

$ sudo apt-get install weston 


$ sudo apt-get install build-essential automake libtool bison flex \

    xutils-dev libcairo2-dev libffi-dev libmtdev-dev libjpeg-dev \

    libudev-dev libxcb-xfixes0-dev libxcursor-dev libraspberrypi-dev \

    libxkbcommon-dev libxcb-composite0-dev libpam-dev

[링크 : http://wayland.freedesktop.org/raspberrypi.html]

[링크 : https://www.raspberrypi.org/blog/wayland-preview/]


W: Duplicate sources.list entry http://raspberrypi.collabora.com/ wheezy/rpi armhf Packages (/var/lib/apt/lists/raspberrypi.collabora.com_dists_wheezy_rpi_binary-armhf_Packages)

W: apt-get update를 실행하면 이 문제를 바로잡을 수도 있습니다. 

안되잖아!!!!


$ git clone git://git.collabora.co.uk/git/user/pq/weston

$ cd weston

$ git checkout origin/raspberrypi-dispmanx-wip


# echo deb http://raspberrypi.collabora.com wheezy rpi >> /etc/apt/sources.list

# apt-get update

# apt-get install weston 

[링크 : https://fooishbar.org/tell-me-about/wayland-on-raspberry-pi/]


사이트 가서 뒤져보면 경로가 좀 달라진거 같기도 하고..

그냥 오래된거라 그런가?(위에 문서들은 2013년.. 지금은 2015년..)

[링크 : http://raspberrypi.collabora.com/]

[링크 : https://git.collabora.com/cgit/user/pq/weston.git/]



어? 받아지네

$ git clone git://git.collabora.co.uk/git/user/pq/weston

Cloning into 'weston'...

remote: Counting objects: 27675, done.

remote: Compressing objects: 100% (8281/8281), done.

remote: Total 27675 (delta 21719), reused 24816 (delta 19354)

Receiving objects: 100% (27675/27675), 6.70 MiB | 1.10 MiB/s, done.

Resolving deltas: 100% (21719/21719), done.


$ du -h weston
12M     weston 


의외로.. 용량이 저렴하다?

아으.. 귀찮아 ㅠㅠ 라이브러리 헤더 ㅠㅠ

어디 빌드된거 없나 ㅠㅠ


$ ./autogen.sh

autoreconf: Entering directory `.'

autoreconf: configure.ac: not using Gettext

autoreconf: running: aclocal --force -I m4

autoreconf: configure.ac: tracing

autoreconf: configure.ac: creating directory build-aux

autoreconf: running: libtoolize --copy --force

libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `build-aux'.

libtoolize: copying file `build-aux/ltmain.sh'

libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.

libtoolize: copying file `m4/libtool.m4'

libtoolize: copying file `m4/ltoptions.m4'

libtoolize: copying file `m4/ltsugar.m4'

libtoolize: copying file `m4/ltversion.m4'

libtoolize: copying file `m4/lt~obsolete.m4'

autoreconf: running: /usr/bin/autoconf --force

autoreconf: running: /usr/bin/autoheader --force

autoreconf: running: automake --add-missing --copy --force-missing

configure.ac:36: installing `build-aux/config.guess'

configure.ac:36: installing `build-aux/config.sub'

configure.ac:26: installing `build-aux/install-sh'

configure.ac:26: installing `build-aux/missing'

Makefile.am: installing `build-aux/depcomp'

autoreconf: Leaving directory `.'

checking for gcc... gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.out

checking for suffix of executables...

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking how to run the C preprocessor... gcc -E

checking for grep that handles long lines and -e... /bin/grep

checking for egrep... /bin/grep -E

checking for ANSI C header files... yes

checking for sys/types.h... yes

checking for sys/stat.h... yes

checking for stdlib.h... yes

checking for string.h... yes

checking for memory.h... yes

checking for strings.h... yes

checking for inttypes.h... yes

checking for stdint.h... yes

checking for unistd.h... yes

checking minix/config.h usability... no

checking minix/config.h presence... no

checking for minix/config.h... no

checking whether it is safe to define __EXTENSIONS__... yes

checking for special C compiler options needed for large files... no

checking for _FILE_OFFSET_BITS value needed for large files... 64

checking for a BSD-compatible install... /usr/bin/install -c

checking whether build environment is sane... yes

checking for a thread-safe mkdir -p... /bin/mkdir -p

checking for gawk... no

checking for mawk... mawk

checking whether make sets $(MAKE)... yes

checking for style of include used by make... GNU

checking dependency style of gcc... gcc3

checking whether make supports nested variables... yes

checking for gcc... (cached) gcc

checking whether we are using the GNU C compiler... (cached) yes

checking whether gcc accepts -g... (cached) yes

checking for gcc option to accept ISO C89... (cached) none needed

checking for a sed that does not truncate output... /bin/sed

checking build system type... armv7l-unknown-linux-gnueabihf

checking host system type... armv7l-unknown-linux-gnueabihf

checking how to print strings... printf

checking for a sed that does not truncate output... (cached) /bin/sed

checking for fgrep... /bin/grep -F

checking for ld used by gcc... /usr/bin/ld

checking if the linker (/usr/bin/ld) is GNU ld... yes

checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B

checking the name lister (/usr/bin/nm -B) interface... BSD nm

checking whether ln -s works... yes

checking the maximum length of command line arguments... 1572864

checking whether the shell understands some XSI constructs... yes

checking whether the shell understands "+="... yes

checking how to convert armv7l-unknown-linux-gnueabihf file names to armv7l-unknown-linux-gnueabihf format... func_convert_file_noop

checking how to convert armv7l-unknown-linux-gnueabihf file names to toolchain format... func_convert_file_noop

checking for /usr/bin/ld option to reload object files... -r

checking for objdump... objdump

checking how to recognize dependent libraries... pass_all

checking for dlltool... no

checking how to associate runtime and link libraries... printf %s\n

checking for ar... ar

checking for archiver @FILE support... @

checking for strip... strip

checking for ranlib... ranlib

checking command to parse /usr/bin/nm -B output from gcc object... ok

checking for sysroot... no

checking for mt... mt

checking if mt is a manifest tool... no

checking for dlfcn.h... yes

checking for objdir... .libs

checking if gcc supports -fno-rtti -fno-exceptions... no

checking for gcc option to produce PIC... -fPIC -DPIC

checking if gcc PIC flag -fPIC -DPIC works... yes

checking if gcc static flag -static works... yes

checking if gcc supports -c -o file.o... yes

checking if gcc supports -c -o file.o... (cached) yes

checking whether the gcc linker (/usr/bin/ld) supports shared libraries... yes

checking whether -lc should be explicitly linked in... no

checking dynamic linker characteristics... GNU/Linux ld.so

checking how to hardcode library paths into programs... immediate

checking whether stripping libraries is possible... yes

checking if libtool supports shared libraries... yes

checking whether to build shared libraries... yes

checking whether to build static libraries... no

checking for pkg-config... /usr/bin/pkg-config

checking pkg-config is at least version 0.9.0... yes

checking for dlopen... no

checking for dlopen in -ldl... yes

checking whether SFD_CLOEXEC is declared... yes

checking whether TFD_CLOEXEC is declared... yes

checking whether CLOCK_MONOTONIC is declared... yes

checking execinfo.h usability... yes

checking execinfo.h presence... yes

checking for execinfo.h... yes

checking for mkostemp... yes

checking for strchrnul... yes

checking for initgroups... yes

checking for posix_fallocate... yes

checking for EGL... no

configure: error: Package requirements (egl >= 7.10 glesv2) were not met:


No package 'egl' found

No package 'glesv2' found


Consider adjusting the PKG_CONFIG_PATH environment variable if you

installed software in a non-standard prefix.


Alternatively, you may set the environment variables EGL_CFLAGS

and EGL_LIBS to avoid the need to call pkg-config.

See the pkg-config man page for more details. 



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Posted by 구차니
embeded/raspberry pi2015. 8. 17. 16:38

터치하면 무조건 클릭+move 라서

좀 어떻게 해결 되려나 조사중...


 Section "InputDevice"

         Identifier "tslib"

         Driver "tslib"

         Option "Device"    "/dev/event0"

         Option "ScreenNumber"  "0"

         Option "Width" "0"

         Option "Height"    "0"

         Option "Rotate"    "NONE"

         Option "EmulateRightButton"    "0"

         ...

       EndSection

[링크 : http://manpages.ubuntu.com/manpages/raring/man4/tslib.4.html]


MatchDevicePath "/dev/input/event*"

[링크 : https://www.raspberrypi.org/forums/viewtopic.php?t=16541&p=180185]



$ sudo apt-cache search evtest

evtest - utility to monitor Linux input device events

joystick - set of testing and calibration tools for joysticks


[링크 : http://blog.rot13.org/2013/12/touch-screen-configuration-using-xinput.html]



$ ls -al /dev/input/*

crw-rw---T 1 root input 13, 64  1월  1  1970 /dev/input/event0

crw-rw---T 1 root input 13, 63  1월  1  1970 /dev/input/mice

crw-rw---T 1 root input 13, 32  1월  1  1970 /dev/input/mouse0


/dev/input/by-path:

합계 0

drwxr-xr-x 2 root root  60  1월  1  1970 .

drwxr-xr-x 3 root root 120  1월  1  1970 ..

lrwxrwxrwx 1 root root   9  1월  1  1970 platform-3f204000.spi-event -> ../event0


$ modinfo evdev

filename:       /lib/modules/3.18.11-v7+/kernel/drivers/input/evdev.ko

license:        GPL

description:    Input driver event char devices

author:         Vojtech Pavlik <vojtech@ucw.cz>

srcversion:     A40D3F09256196BB98D0C0E

alias:          input:b*v*p*e*-e*k*r*a*m*l*s*f*w*

depends:

intree:         Y

vermagic:       3.18.11-v7+ SMP preempt mod_unload modversions ARMv7


$ sudo evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:      ADS7846 Touchscreen
Select the device event number [0-0]: 0
Input driver version is 1.0.1
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0
Input device name: "ADS7846 Touchscreen"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 330 (BTN_TOUCH)
  Event type 3 (EV_ABS)
    Event code 0 (ABS_X)
      Value   1676
      Min        0
      Max     4095
    Event code 1 (ABS_Y)
      Value   2147
      Min        0
      Max     4095
    Event code 24 (ABS_PRESSURE)
      Value      0
      Min        0
      Max      255
Properties:
Testing ... (interrupt to exit)
Event: time 1439797317.648607, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1439797317.648607, type 3 (EV_ABS), code 0 (ABS_X), value 2036
Event: time 1439797317.648607, type 3 (EV_ABS), code 1 (ABS_Y), value 2098
Event: time 1439797317.648607, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 143
Event: time 1439797317.648607, -------------- SYN_REPORT ------------
Event: time 1439797317.658645, type 3 (EV_ABS), code 0 (ABS_X), value 2063
Event: time 1439797317.658645, type 3 (EV_ABS), code 1 (ABS_Y), value 2097
Event: time 1439797317.658645, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 141
Event: time 1439797317.658645, -------------- SYN_REPORT ------------
Event: time 1439797317.668690, type 3 (EV_ABS), code 0 (ABS_X), value 2089
Event: time 1439797317.668690, type 3 (EV_ABS), code 1 (ABS_Y), value 2089
Event: time 1439797317.668690, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 117
Event: time 1439797317.668690, -------------- SYN_REPORT ------------
Event: time 1439797317.678191, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1439797317.678191, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 0
Event: time 1439797317.678191, -------------- SYN_REPORT ------------


Option "DragLockButtons" "L1 B2 L3 B4"
Sets "drag lock buttons" that simulate holding a button down, so that low dexterity people do not have to hold a button down at the same time they move a mouse cursor. Button numbers occur in pairs, with the lock button number occurring first, followed by the button number that is the target of the lock button. Property: "Evdev Drag Lock ButtonsEvdev Drag Lock Buttons".

Option "DragLockButtons" "M1"
Sets a "master drag lock button" that acts as a "Meta Key" indicating that the next button pressed is to be "drag locked". Property: "Evdev Drag Lock Buttons".



5.4. Drag Lock Buttons

Some people find it difficult or inconvenient to hold a trackball button down, while at the same time moving the ball. Drag lock buttons simulate the holding down of another button. When a drag lock button is first pressed, its target buttons is "locked" down until the second time the lock button is released, or until the button itself is pressed and released. This allows the starting of a drag, the movement of the trackball, and the ending of the drag to be separate operations.

Option "DragLockButtons" "W X Y Z"
This option consists of pairs of buttons. Each lock button number is followed by the number of the button that it locks. In the above, button number "W" is a drag lock button for button "X" and button number "Y" is a drag lock button for button "Z".

It may not be desirable to use multiple buttons as drag locks. Instead, a "master drag lock button" may be defined. A master drag lock button acts as a "META" key. After a master lock button is released, the next button pressed is "locked" and not released until the second time the real button is released.

Option "DragLockButtons" "M"
Since button "M" is unpaired it is a master drag lock button.



[링크 : http://lxr.free-electrons.com/source/drivers/input/touchscreen/ads7846.c]

[링크 : http://lxr.free-electrons.com/source/drivers/input/evdev.c]

[링크 : http://lxr.free-electrons.com/source/Documentation/input/event-codes.txt]

Posted by 구차니
embeded/raspberry pi2015. 8. 17. 15:45


All the applications are command line driven, written to take advantage of the mmal API which runs over OpenMAX. The mmal API provides an easier to use system than that presented by OpenMAX. Note that mmal is a Broadcom specific API used only on Videocore 4 systems.



[링크 : https://www.raspberrypi.org/documentation/raspbian/applications/camera.md]


Open Media Acceleration

[링크 : https://www.khronos.org/openmax/]

[링크 : https://en.wikipedia.org/wiki/OpenMAX]



+

내가 할때는 한참 있다가 겨우 한프레임 뽑던데...

omxplayer라고 다른걸 써봐야겠다... ㄷㄷㄷ


Good news for those after MJPEG - I have something working that is producing a nice stream of JPEGs. VLC doesn't like it (just displays the first frame, but does correctly get the clip duration as 10s long), but omxplayer is quite happy. v4l2-ctl claims to be getting 30fps at 1920x1080 from it too. [...]And you all thought Santa was due tomorrow night  :D Happy Christmas!

[링크 : https://www.raspberrypi.org/forums/viewtopic.php?p=474041]

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Posted by 구차니
embeded/raspberry pi2015. 8. 17. 15:31

공식문서 활용!

역시 공식 문서는 위대한 겁니다!!! (어?)


1단계 부트로더가 SoC 안에 내장되어 있고 이녀석이 SD 카드 초기화 / FAT 인식을 담당한다.

2단계 부트로더는 bootcode.bin으로 FAT를 통해 config.txt / cmdline.txt 등의 환경설정파일로 부팅을 진행한다.

3단계 GPU 펌웨어는 GPU의 사용을 초기화 하고(단, GPU 메모리가 적을 경우 사용 기능이 제한됨)

4단계 커널이 불려오고(2단계의 cmdline.txt를 통해 커널 인자를 넘겨받음)

5단계 rootfs 마운트 이후 /sbin/init를 통해 시스템 부팅 과정을 밟음


First stage bootloader 

This is used to mount the FAT32 boot partition on the SD card so that the second stage bootloader can be accessed. It is programmed into the SoC itself during manufacture of the RPi and cannot be reprogrammed by a user.


Second stage bootloader (bootcode.bin) 

This is used to retrieve the GPU firmware from the SD card, program the firmware, then start the GPU.


GPU firmware (start.elf) 

Once loaded, this allows the GPU to start up the CPU. An additional file, fixup.dat, is used to configure the SDRAM partition between the GPU and the CPU. At this point, the CPU is release from reset and execution is transferred over.


User code

This can be one of any number of binaries. By default, it is the Linux kernel (usually named kernel.img), but it can also be another bootloader (e.g. U-Boot), or a bare-bones application.

[링크 : http://elinux.org/RPi_Software]



The start_cd.elf and fixup_cd.dat will be used when gpu_mem=16.

The latter are cutdown versions without opengles/openmax/openvg/codec etc built in. They are used when gpu_mem=16.

[링크 : https://www.raspberrypi.org/forums/viewtopic.php?p=198420]

Posted by 구차니
embeded/raspberry pi2015. 8. 16. 21:57

헐.. 당연한거겠지만..

생각도 못하던(?!) u-boot ㄷㄷ


yocto project에서도 지원은 하는데..

fat / config.txt / cmdline.txt 기반의 부트로더+설정과

uboot 중에 어느게 나을런진 한번쯤은 테스트 해봐야 할 듯


[링크 : http://elinux.org/RPi_U-Boot]

[링크 : http://git.yoctoproject.org/cgit/cgit.cgi/meta-raspberrypi/about/]

Posted by 구차니
Linux/Ubuntu2015. 8. 15. 17:43

아니.. 왜 이걸 아직가지 적은적이 없지? 그럴리가 없을텐데? ㄷㄷㄷ


$ sudo apt-cache search lm-sensor

libsensors4 - library to read temperature/voltage/fan sensors

libsensors4-dev - lm-sensors development kit

fancontrol - utilities to read temperature/voltage/fan sensors

lm-sensors - utilities to read temperature/voltage/fan sensors

mate-sensors-applet - Display readings from hardware sensors in your MATE panel

mrtgutils-sensors - Utilities to generate statistics for mrtg (from lm-sensors)

nagios-plugins-contrib - Plugins for nagios compatible monitoring systems

phpsysinfo - PHP based host information

psensor - display graphs for monitoring hardware temperature

psensor-server - Psensor server for monitoring hardware sensors remotely

sensord - hardware sensor information logging daemon

sensors-applet - Display readings from hardware sensors in your Gnome panel

xfce4-goodies - enhancements for the Xfce4 Desktop Environment


$ sudo apt-get install lm-sensors


$ sensors

k8temp-pci-00c3

Adapter: PCI adapter

Core0 Temp:   +91.0°C

Core0 Temp:   +88.0°C

Core1 Temp:   +67.0°C

Core1 Temp:   +79.0°C


$ sensors

k8temp-pci-00c3

Adapter: PCI adapter

Core0 Temp:  +102.0°C

Core0 Temp:  +100.0°C

Core1 Temp:   +74.0°C

Core1 Temp:   +91.0°C


헐.. 듀얼 코어이긴 한데.. 왜 Core0/1이 각각 두번씩 나오지? ㄷㄷㄷ
그나저나 이 온도 믿을만 한거 맞나? ㄷㄷㄷ

[링크 : http://www.lm-sensors.org/]

[링크 : https://help.ubuntu.com/community/SensorInstallHowto]

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Posted by 구차니
Linux/Ubuntu2015. 8. 15. 17:08

먼가.. 예전보다 간단해졌다?


$ sudo apt-get install xserver-xorg-video-dummy

$ sudo vi /etc/X11/xorg.conf

Section "Device"

    Identifier  "Configured Video Device"

    Driver      "dummy"

EndSection


Section "Monitor"

    Identifier  "Configured Monitor"

    HorizSync 31.5-48.5

    VertRefresh 50-70

EndSection


Section "Screen"

    Identifier  "Default Screen"

    Monitor     "Configured Monitor"

    Device      "Configured Video Device"

    DefaultDepth 24

    SubSection "Display"

    Depth 24

    Modes "1024x768"

    EndSubSection

EndSection


엥? 안되는데? ㅠㅠ


[링크 : http://askubuntu.com/questions/453109/ubuntu-14-04-add-fake-display-when-no-monitor-is-plugged-in]

[링크 : http://blog.mediafederation.com/andy-hawkins/ubuntu-headless-vnc-vesa-800x600-fix/]


에라이.. 그냥 메모리도 적게 먹고 좋네

걍 냅두자 ㅋㅋㅋㅋ


2012/06/02 - [Linux/Ubuntu] - ubuntu 12.10 에서 모니터 없이 부팅시키기


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Posted by 구차니
embeded/raspberry pi2015. 8. 15. 16:26

이전의 내용은 raspberry pi 용이라

다시 검색해서 라즈베리 파이 2용으로 변경


AMD 4850e 듀얼 코어로 bitbake를 통해 빌드하는데

자동으로 멀티코어 빌드를 시도하는 것으로 보인다.



$ bitbake rpi-basic-image
Parsing recipes: 100% |#########################################| Time: 00:02:04
Parsing of 904 .bb files complete (0 cached, 904 parsed). 1319 targets, 47 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies

Build Configuration:
BB_VERSION        = "1.27.1"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Ubuntu-15.04"
TARGET_SYS        = "arm-poky-linux-gnueabi"
MACHINE           = "raspberrypi2"
DISTRO            = "poky"
DISTRO_VERSION    = "1.8+snapshot-20150815"
TUNE_FEATURES     = "arm armv7a vfp thumb neon callconvention-hard vfpv4 cortexa7"
TARGET_FPU        = "vfp-vfpv4-neon"
meta
meta-yocto
meta-yocto-bsp    = "master:07cbc407d84f2f8f5fee430902039aa7cef65db4"
meta-raspberrypi  = "master:17dad9328b100beda1cf870c9075e509b5cbfa90"

NOTE: Preparing RunQueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
Currently 2 running tasks (76 of 2001):
0: pkgconfig-native-0.28+gitAUTOINC+40342dd0ea-r0 do_configure (pid 10059)

1: gmp-native-6.0.0-r0 do_compile (pid 18235) 


빌드할게 2001개란다.. ㄷㄷㄷ 어느세월에 한대?

2015. 08. 15. (토) 17:24:55 KST

2015. 08. 15. (토) 21:39:00 KST 


구린 녀석이긴 하지만 5시간 만에 끝!


$ date;bitbake rpi-basic-image;date

2015. 08. 15. (토) 17:24:55 KST

Parsing recipes: 100% |#########################################| Time: 00:03:00

Parsing of 904 .bb files complete (0 cached, 904 parsed). 1319 targets, 61 skipped, 0 masked, 0 errors.

NOTE: Resolving any missing task queue dependencies


Build Configuration:

BB_VERSION        = "1.27.1"

BUILD_SYS         = "x86_64-linux"

NATIVELSBSTRING   = "Ubuntu-15.04"

TARGET_SYS        = "arm-poky-linux-gnueabi"

MACHINE           = "raspberrypi2"

DISTRO            = "poky"

DISTRO_VERSION    = "1.8+snapshot-20150815"

TUNE_FEATURES     = "arm armv7a vfp thumb neon callconvention-hard vfpv4 cortexa7"

TARGET_FPU        = "vfp-vfpv4-neon"

meta

meta-yocto

meta-yocto-bsp    = "master:07cbc407d84f2f8f5fee430902039aa7cef65db4"

meta-raspberrypi  = "master:17dad9328b100beda1cf870c9075e509b5cbfa90"


NOTE: Preparing RunQueue

NOTE: Executing SetScene Tasks

NOTE: Executing RunQueue Tasks

WARNING: Failed to fetch URL ftp://invisible-island.net/ncurses/current/ncurses-5.9-20150329.tgz, attempting MIRRORS if available

NOTE: Tasks Summary: Attempted 2001 tasks of which 10 didn't need to be rerun and all succeeded.


Summary: There was 1 WARNING message shown.

2015. 08. 15. (토) 21:39:00 KST 



빌드 하고 나니 소스 크기가 ㄷㄷㄷ

~/src/yoctoProject/raspberryPiBuild$ du -h

23G     .


빌드한 이미지는 아래의 경로에 존재한다.

raspberryPiBuild/tmp/deploy/images/raspberrypi2

~/src/yoctoProject/raspberryPiBuild/tmp/deploy/images/raspberrypi2$ ls -al

total 230864

drwxr-xr-x 3 minimonk minimonk      4096  8월 15 21:38 .

drwxrwxr-x 3 minimonk minimonk      4096  8월 15 20:49 ..

drwxr-xr-x 2 minimonk minimonk      4096  8월 15 21:27 bcm2835-bootfiles

lrwxrwxrwx 1 minimonk minimonk        93  8월 15 21:27 Image -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-raspberrypi2-20150815082804.bin

-rw-r--r-- 2 minimonk minimonk      4423  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-bcm2708-rpi-b-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk      4702  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-bcm2708-rpi-b-plus-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk      5690  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-bcm2709-rpi-2-b-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       409  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-ds1307-rtc-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       779  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-amp-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       655  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-dac-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       783  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-dacplus-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       783  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-digi-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       775  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-iqaudio-dac-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       775  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-iqaudio-dacplus-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk      1428  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-lirc-rpi-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk       405  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-pcf8523-rtc-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk      1003  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-pps-gpio-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk   8607076  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-raspberrypi2-20150815082804.bin

-rw-r--r-- 2 minimonk minimonk      1124  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-w1-gpio-overlay-20150815082804.dtb

-rw-r--r-- 2 minimonk minimonk      1291  8월 15 21:27 Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-w1-gpio-pullup-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        94  8월 15 21:27 Image-bcm2708-rpi-b.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-bcm2708-rpi-b-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        99  8월 15 21:27 Image-bcm2708-rpi-b-plus.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-bcm2708-rpi-b-plus-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        96  8월 15 21:27 Image-bcm2709-rpi-2-b.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-bcm2709-rpi-2-b-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        99  8월 15 21:27 Image-ds1307-rtc-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-ds1307-rtc-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       102  8월 15 21:27 Image-hifiberry-amp-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-amp-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       102  8월 15 21:27 Image-hifiberry-dac-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-dac-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       106  8월 15 21:27 Image-hifiberry-dacplus-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-dacplus-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       103  8월 15 21:27 Image-hifiberry-digi-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-hifiberry-digi-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       100  8월 15 21:27 Image-iqaudio-dac-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-iqaudio-dac-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       104  8월 15 21:27 Image-iqaudio-dacplus-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-iqaudio-dacplus-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        97  8월 15 21:27 Image-lirc-rpi-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-lirc-rpi-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       100  8월 15 21:27 Image-pcf8523-rtc-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-pcf8523-rtc-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        97  8월 15 21:27 Image-pps-gpio-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-pps-gpio-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk        93  8월 15 21:27 Image-raspberrypi2.bin -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-raspberrypi2-20150815082804.bin

lrwxrwxrwx 1 minimonk minimonk        96  8월 15 21:27 Image-w1-gpio-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-w1-gpio-overlay-20150815082804.dtb

lrwxrwxrwx 1 minimonk minimonk       103  8월 15 21:27 Image-w1-gpio-pullup-overlay.dtb -> Image--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-w1-gpio-pullup-overlay-20150815082804.dtb

-rw-rw-r-- 2 minimonk minimonk  15182232  8월 15 21:27 modules--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-raspberrypi2-20150815082804.tgz

lrwxrwxrwx 1 minimonk minimonk        95  8월 15 21:27 modules-raspberrypi2.tgz -> modules--3.18.11+gitd64fa8121fca9883d6fb14ca06d2abf66496195e-r0-raspberrypi2-20150815082804.tgz

-rw-r--r-- 2 minimonk minimonk       294  8월 15 21:36 README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt

-rw-r--r-- 1 minimonk minimonk  83886080  8월 15 21:38 rpi-basic-image-raspberrypi2-20150815082804.rootfs.ext3

-rw-r--r-- 1 minimonk minimonk    125354  8월 15 21:38 rpi-basic-image-raspberrypi2-20150815082804.rootfs.manifest

-rw-r--r-- 1 minimonk minimonk 130023424  8월 15 21:38 rpi-basic-image-raspberrypi2-20150815082804.rootfs.rpi-sdimg

-rw-r--r-- 1 minimonk minimonk  19595724  8월 15 21:38 rpi-basic-image-raspberrypi2-20150815082804.rootfs.tar.bz2

lrwxrwxrwx 1 minimonk minimonk        55  8월 15 21:38 rpi-basic-image-raspberrypi2.ext3 -> rpi-basic-image-raspberrypi2-20150815082804.rootfs.ext3

lrwxrwxrwx 1 minimonk minimonk        59  8월 15 21:38 rpi-basic-image-raspberrypi2.manifest -> rpi-basic-image-raspberrypi2-20150815082804.rootfs.manifest

lrwxrwxrwx 1 minimonk minimonk        60  8월 15 21:38 rpi-basic-image-raspberrypi2.rpi-sdimg -> rpi-basic-image-raspberrypi2-20150815082804.rootfs.rpi-sdimg

lrwxrwxrwx 1 minimonk minimonk        58  8월 15 21:38 rpi-basic-image-raspberrypi2.tar.bz2 -> rpi-basic-image-raspberrypi2-20150815082804.rootfs.tar.bz2


124M  8월 15 21:38 rpi-basic-image-raspberrypi2-20150815082804.rootfs.rpi-sdimg
미니멈이 124MB면 작은건가 큰건가... -_-?

[링크 : http://www.cnx-software.com/2015/02/27/yocto-project-raspberry-pi-2-board-minimal-image/]


--


$ bitbake

Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.


bitbake world

NOTE: Resolving any missing task queue dependencies

ERROR: Nothing PROVIDES 'libav' (but /home/minimonk/src/yoctoProject/meta-raspberrypi/recipes-multimedia/omxplayer/omxplayer_git.bb DEPENDS on or otherwise requires it)

ERROR: libav was skipped: because it has a restricted license not whitelisted in LICENSE_FLAGS_WHITELIST

ERROR: Required build target 'omxplayer' has no buildable providers.

Missing or unbuildable dependency chain was: ['omxplayer', 'libav']


Summary: There were 2 ERROR messages shown, returning a non-zero exit code.


3.A. omxplayer

==============

omxplayer depends on libav which has a commercial license. So in order to be

able to compile omxplayer you will need to whiteflag the commercial license

adding to you local.conf:

LICENSE_FLAGS_WHITELIST = "commercial" 


$ bitbake --help

Usage: bitbake [options] [recipename/target recipe:do_task ...]


    Executes the specified task (default is 'build') for a given set of target recipes (.bb files).

    It is assumed there is a conf/bblayers.conf available in cwd or in BBPATH which

    will provide the layer, BBFILES and other configuration information.


Options:

  --version             show program's version number and exit

  -h, --help            show this help message and exit

  -b BUILDFILE, --buildfile=BUILDFILE

                        Execute tasks from a specific .bb recipe directly.

                        WARNING: Does not handle any dependencies from other

                        recipes.

  -k, --continue        Continue as much as possible after an error. While the

                        target that failed and anything depending on it cannot

                        be built, as much as possible will be built before

                        stopping.

  -a, --tryaltconfigs   Continue with builds by trying to use alternative

                        providers where possible.

  -f, --force           Force the specified targets/task to run (invalidating

                        any existing stamp file).

  -c CMD, --cmd=CMD     Specify the task to execute. The exact options

                        available depend on the metadata. Some examples might

                        be 'compile' or 'populate_sysroot' or 'listtasks' may

                        give a list of the tasks available.

  -C INVALIDATE_STAMP, --clear-stamp=INVALIDATE_STAMP

                        Invalidate the stamp for the specified task such as

                        'compile' and then run the default task for the

                        specified target(s).

  -r PREFILE, --read=PREFILE

                        Read the specified file before bitbake.conf.

  -R POSTFILE, --postread=POSTFILE

                        Read the specified file after bitbake.conf.

  -v, --verbose         Output more log message data to the terminal.

  -D, --debug           Increase the debug level. You can specify this more

                        than once.

  -n, --dry-run         Don't execute, just go through the motions.

  -S SIGNATURE_HANDLER, --dump-signatures=SIGNATURE_HANDLER

                        Dump out the signature construction information, with

                        no task execution. The SIGNATURE_HANDLER parameter is

                        passed to the handler. Two common values are none and

                        printdiff but the handler may define more/less. none

                        means only dump the signature, printdiff means compare

                        the dumped signature with the cached one.

  -p, --parse-only      Quit after parsing the BB recipes.

  -s, --show-versions   Show current and preferred versions of all recipes.

  -e, --environment     Show the global or per-recipe environment complete

                        with information about where variables were

                        set/changed.

  -g, --graphviz        Save dependency tree information for the specified

                        targets in the dot syntax.

  -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED

                        Assume these dependencies don't exist and are already

                        provided (equivalent to ASSUME_PROVIDED). Useful to

                        make dependency graphs more appealing

  -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS

                        Show debug logging for the specified logging domains

  -P, --profile         Profile the command and save reports.

  -u UI, --ui=UI        The user interface to use (e.g. knotty, hob, depexp).

  -t SERVERTYPE, --servertype=SERVERTYPE

                        Choose which server to use, process or xmlrpc.

  --token=XMLRPCTOKEN   Specify the connection token to be used when

                        connecting to a remote server.

  --revisions-changed   Set the exit code depending on whether upstream

                        floating revisions have changed or not.

  --server-only         Run bitbake without a UI, only starting a server

                        (cooker) process.

  -B BIND, --bind=BIND  The name/address for the bitbake server to bind to.

  --no-setscene         Do not run any setscene tasks. sstate will be ignored

                        and everything needed, built.

  --remote-server=REMOTE_SERVER

                        Connect to the specified server.

  -m, --kill-server     Terminate the remote server.

  --observe-only        Connect to a server as an observing-only client.

  --status-only         Check the status of the remote bitbake server.

  -w WRITEEVENTLOG, --write-log=WRITEEVENTLOG

                        Writes the event log of the build to a bitbake event

                        json file. Use '' (empty string) to assign the name

                        automatically. 


Posted by 구차니
embeded/raspberry pi2015. 8. 14. 13:30

드럽게 구하기 힘드네...

엘레파츠나 디바이스 마트에서는 10단위로 핀수가 있지 15핀은 보이지 않는다..

게다가 개당 1천원 꼴 ㄷㄷㄷ

머가 이렇게 드럽게 비싸 ㅠㅠ



그러니까 처음부터 잘 고민해서 이쁘게 접을걸 ㅠㅠ

게다가 오늘 보니 핀도 부러 먹었...ㅠㅠ



[링크 : http://www.modmypi.com/raspberry-pi/camera/raspberry-pi-camera-board-replacement-cable-150mm]

Posted by 구차니