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diff --git a/meta-agl.md b/meta-agl.md new file mode 100755 index 000000000..59167adfd --- /dev/null +++ b/meta-agl.md @@ -0,0 +1,142 @@ +## Introduction + +The `meta-agl` layer provides the minimal set of software +to boot an AGL Distribution system. +You use this layer as the minimal core on which to build AGL profiles. + +**NOTE:** The `meta-agl` layer does not include a reference UI. + The reference UI is included as part of the + [`meta-agl-demo`](./meta-agl-demo.html) layer. + Furthermore, `meta-agl` does not include additional components, such + as security, which are part of the + [`meta-agl-extra`](./meta-agl-extra.html) layer. + +## Sub-Layers + +The `meta-agl` layer itself contains many sub-layers and files. +Following is a "tree" look at the layer: + +``` +. +├── docs +├── meta-agl +├── meta-agl-bsp +├── meta-agl-distro +├── meta-agl-profile-cluster +├── meta-agl-profile-cluster-qt5 +├── meta-agl-profile-core +├── meta-agl-profile-graphical +├── meta-agl-profile-graphical-html5 +├── meta-agl-profile-graphical-qt5 +├── meta-agl-profile-hud +├── meta-agl-profile-telematics +├── meta-app-framework +├── meta-netboot +├── meta-security +├── README-AGL.md +├── README.md +├── scripts +├── templates +``` + +This list provides some overview information on the files and sub-layers +in `meta-agl`: + +* `docs`: Contains files that support AGL documentation. +* `meta-agl`: Contains layer configuration for the `meta-agl` layer. +* `meta-agl-bsp`: Contains adaptations for recipes and required packages + to boot an AGL distribution on targeted hardware and emulation (i.e. QEMU). +* `meta-agl-distro`: Contains distro configuration and supporting scripts. +* `meta-agl-profile-cluster`: The middleware for the AGL cluster profile. + The set of packages required for AGL Cluster Distribution. + Profiles include support for Wayland images. +* `meta-agl-profile-cluster-qt5`: The middleware for the AGL Qt5-based cluster profile. + The set of packages required for AGL Qt5-based Cluster Distribution. + Profiles include support for Wayland images with Qt5. +* `meta-agl-profile-core`: Configuration and recipes for the AGL core profiles. +* `meta-agl-profile-graphical`: Configuration and recipes supporting graphical user + interfaces. +* `meta-agl-profile-graphical-html5`: Configuration and recipes supporting profiles + with HTML user interface support. +* `meta-agl-profile-graphical-qt5`: Configuration and recipes supporting profiles + with Qt5-based user interface support. +* `meta-agl-profile-hud`: Configuration and recipes supporting profiles with + Head-Up-Display (HUD) support. +* `meta-agl-profile-telematics`: Configuration and recipes supporting profiles with + telematics support. +* `meta-app-framework`: Configuration and recipes supporting the AGL Application + Framework. +* `meta-netboot`: Contains recipes and configuration adjustments to allow network + boot through network block device (NBD) since network file system (NFS) does not + support security labels. +* `meta-security`: Configuration and recipes supporting security applications. +* `scripts`: AGL development setup and support scripts. +* `templates`: Base, feature, and machine templates used in the AGL development + environment. + +## Packagegroups + +This section describes the AGL +[packagegroup](https://yoctoproject.org/docs/2.4.4/dev-manual/dev-manual.html#usingpoky-extend-customimage-customtasks) +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 + + The previous list of Packagegroups are used to create the `agl-image-minimal` image, + which is a 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 + + The previous list of Packagegroups are used to create the `agl-image-ivi` + image, which is a baseline image (i.e. Service Layer and Operating System + Layer defined in AGL Spec v1.0) for the AGL profiles. + +* packagegroup-agl-test.bb + + Additional tools used in QA tests (for agl-image*-qa). + +<!-- +* packagegroup-ivi-common* + + packagegroup-ivi-common-core-automotive.bb + packagegroup-ivi-common-core.bb + packagegroup-ivi-common-core-connectivity.bb + packagegroup-ivi-common-core-graphics.bb + packagegroup-ivi-common-core-kernel.bb + packagegroup-ivi-common-core-multimedia.bb + packagegroup-ivi-common-core-navi-lbs.bb + packagegroup-ivi-common-core-os-commonlibs.bb + packagegroup-ivi-common-core-security.bb + packagegroup-ivi-common-core-speech-services.bb + packagegroup-ivi-common-test.bb + +The previous Packagegroups pick up some packages from upstream +locations such as +[GENIVI Alliance](https://www.genivi.org/) and others. +The `meta-ivi-common` layer produces no image. +All the Packagegroups in this layer are aggregated to `packagegroup-ivi-common-core`, +which is included by the images and the two recipes `agl-image-ivi.bb` and `agl-demo-platform.bb`. +--> |