# 'meta-agl' layer

See README-AGL.md for general information about Automotive Grade Linux.

## meta-agl, the core layer for Automotive Grade Linux Distribution

AGL is creating an automotive specific Linux distribution that unifies
the software that has been written in a number of places already,
such as GENIVI and Tizen IVI.

The layer 'meta-agl' provides a minimal set of software
to boot system of AGL Distribution. 'meta-agl' is the minimal
core which is used build AGL profiles on top of it.

Especially there is no reference UI included which is part of 'meta-agl-demo'.

Additional components like the security framework are part of 'meta-agl-extra'.

The AGL community appreciates feedback, ideas, suggestion, bugs and
documentation just as much as code. Please join the irc conversation
at the #automotive channel on irc.freenode.net and our mailing list.

For infomation for subscribing to the mailing list
    [automotive-discussions](http://lists.linuxfoundation.org/mailman/listinfo/automotive-discussions)
For information about AGL Distribution, see the
    [AGL Distribution](https://wiki.automotivelinux.org/agl-distro)
For information abount Getting started with AGL
    [here](https://wiki.automotivelinux.org/start/getting-started)
For information about contributing to the AGL Distro
    [here](https://wiki.automotivelinux.org/agl-distro/contributing)

## Quick start guide

See README-AGL.md

## 'meta-agl' Layer Dependencies

* poky
  > URI: git://git.yoctoproject.org/poky
  > branch         : jethro
  > tested revision: 40376446904ae3529be41737fed9a0b650ed167d

* meta-openembedded
  > URI: git://git.openembedded.org/meta-openembedded
  > layer          : meta-openembedded
  > branch         : jethro
  > tested revision: 8ab04afbffb4bc5184cfe0655049de6f44269990

Specifically out of meta-openembedded these sub-layers are used:

* meta-openembedded/meta-oe
* meta-openembedded/meta-multimedia
* meta-openembedded/meta-networking
* meta-openembedded/meta-python

## Layers

There are 5 layers in top-level `meta-agl`.

* `meta-agl/meta-ivi-common`\
  `meta-ivi-common` is a layer which contains common packages to AGL
  Distribution and other platforms for In-Vehicle Infotainment system.
* `meta-agl/meta-agl`\
  `meta-agl` is a layer which contains AGL common and middleware packages.
* `meta-agl/meta-agl-bsp`\
  `meta-agl-bsp` is a layer which contains required packages to boot AGL
  distribution on an emulated machine(QEMU).
* `meta-agl/meta-netboot`\
  `meta-netboot` contains the netboot initrd support recipes. This is needed
  in case of booting over the network as NFS does not support the securitylabels.

## Packagegroups

AGL package group design:

* packagegroup-agl-image-minimal

        packagegroup-agl-core-automotive.bb
        packagegroup-agl-core-connectivity.bb
        packagegroup-agl-core-graphics.bb
        packagegroup-agl-core-kernel.bb
        packagegroup-agl-core-multimedia.bb
        packagegroup-agl-core-navi-lbs.bb
        packagegroup-agl-core-os-commonlibs.bb
        packagegroup-agl-core-security.bb
        packagegroup-agl-core-speech-services.bb

These are for making image ``agl-image-minimal`` which is small image just
capable of allowing a device to boot.

Subsystem should maintain packagegroup-agl-core-[subsystem].bb which should
hold sufficient packages to build ``agl-image-minimal``.

* packagegroup-agl-image-ivi

        packagegroup-agl-ivi-automotive.bb
        packagegroup-agl-ivi-connectivity.bb
        packagegroup-agl-ivi-graphics.bb
        packagegroup-agl-ivi-kernel.bb
        packagegroup-agl-ivi-multimedia.bb
        packagegroup-agl-ivi-navi-lbs.bb
        packagegroup-agl-ivi-os-commonlibs.bb
        packagegroup-agl-ivi-security.bb
        packagegroup-agl-ivi-speech-services.bb

These are for making image ``agl-image-ivi`` which is baseline for the profiles
of AGL distro. 'Baseline' means Service Layer and Operating System Lay<style>
@media only all and (prefers-color-scheme: dark) {
.highlight .hll { background-color: #49483e }
.highlight .c { color: #75715e } /* Comment */
.highlight .err { color: #960050; background-color: #1e0010 } /* Error */
.highlight .k { color: #66d9ef } /* Keyword */
.highlight .l { color: #ae81ff } /* Literal */
.highlight .n { color: #f8f8f2 } /* Name */
.highlight .o { color: #f92672 } /* Operator */
.highlight .p { color: #f8f8f2 } /* Punctuation */
.highlight .ch { color: #75715e } /* Comment.Hashbang */
.highlight .cm { color: #75715e } /* Comment.Multiline */
.highlight .cp { color: #75715e } /* Comment.Preproc */
.highlight .cpf { color: #75715e } /* Comment.PreprocFile */
.highlight .c1 { color: #75715e } /* Comment.Single */
.highlight .cs { color: #75715e } /* Comment.Special */
.highlight .gd { color: #f92672 } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gi { color: #a6e22e } /* Generic.Inserted */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { colo