Add gateway demo

Changes:
- Add recipe for AGL VSS to MQTT proxy daemon
- Update agl-vcar.dbc CAN database definition to add signals useful
  for demoing the proxy (per V2C EG discussion).
- Add a patch to kuksa-dbc-feeder to allow sensor signal updates to
  generate CAN messages in output mode.
- Add VSS vspec variants to define the desired CAN input and output
  support for the various kuksa-dbc-feeder instances in the default
  and full gateway demos.
- Add configurations for kuksa-dbc-feeder for the running the default
  gateway demo with CAN output from a demo control panel instance on
  a single CAN interface, as well as a fuller setup with a second
  kuksa-dbc-feeder running against a second CAN interface on the
  gateway to handle the demo steering wheel and HVAC support.
- Add gateway demo specific configuration files for various KUKSA.val
  databroker clients to override the databroker location.
- Add agl-gateway-demo and agl-gateway-demo-preconfigured images for
  the default and full demos.
- Add *-preconfigured-gateway image flavors for the Flutter IVI, IC,
  and KVM demo images that support running with the databroker on
  the gateway.

NOTES:
- The *-preconfigured-gateway images assume the gateway has an IP
  address of 192.168.10.4.
- Required changes to the agl-demo-control-panel application and the
  addition of a agl-ivi-demo-control-panel-preconfigured-gateway
  image will come in a subsequent change.

Bug-AGL: SPEC-5107, SPEC-5138

Change-Id: I9797aa72737af7af3d791a5151198f80b6d90e0d
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl-demo/+/29906
Tested-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>

1 files changed, 23 insertions, 4 deletions

diff --git a/recipes-demo/agl-service-audiomixer/agl-service-audiomixer_git.bb b/recipes-demo/agl-service-audiomixer/agl-service-audiomixer_git.bb
index e6b7d64b7..a1f6f795c 100644
--- a/recipes-demo/agl-service-audiomixer/agl-service-audiomixer_git.bb
+++ b/recipes-demo/agl-service-audiomixer/agl-service-audiomixer_git.bb
@@ -20,7 +20,8 @@ DEPENDS = " \
 "
 
 SRC_URI = "git://gerrit.automotivelinux.org/gerrit/apps/agl-service-audiomixer.git;protocol=https;branch=${AGL_BRANCH} \
-           file://agl-service-audiomixer.conf \
+           file://agl-service-audiomixer.conf.default \
+           file://agl-service-audiomixer.conf.gateway-demo \
            file://agl-service-audiomixer.token \
 "
 SRCREV  = "0ff3ef1b254364639fc42495bbcfb4760250990a"
@@ -28,7 +29,7 @@ SRCREV  = "0ff3ef1b254364639fc42495bbcfb4760250990a"
 PV = "2.0+git${SRCPV}"
 S  = "${WORKDIR}/git"
 
-inherit meson pkgconfig systemd
+inherit meson pkgconfig systemd update-alternatives
 
 EXTRA_OEMESON += "-Dprotos=${STAGING_INCDIR}"
 
@@ -43,10 +44,28 @@ do_install:append() {
     # until a packaging/sandboxing/MAC scheme is (re)implemented or
     # something like OAuth is plumbed in as an alternative.
     install -d ${D}${sysconfdir}/xdg/AGL/agl-service-audiomixer
-    install -m 0644 ${WORKDIR}/agl-service-audiomixer.conf ${D}${sysconfdir}/xdg/AGL/
+    install -m 0644 ${WORKDIR}/agl-service-audiomixer.conf.default ${D}${sysconfdir}/xdg/AGL/
+    install -m 0644 ${WORKDIR}/agl-service-audiomixer.conf.gateway-demo ${D}${sysconfdir}/xdg/AGL/
     install -m 0644 ${WORKDIR}/agl-service-audiomixer.token ${D}${sysconfdir}/xdg/AGL/agl-service-audiomixer/
 }
 
 FILES:${PN} += "${systemd_system_unitdir}"
 
-RDEPENDS:${PN} += "kuksa-databroker"
+RDEPENDS:${PN} += "${PN}-conf"
+
+ALTERNATIVE_LINK_NAME[agl-service-audiomixer.conf] = "${sysconfdir}/xdg/AGL/agl-service-audiomixer.conf"
+
+PACKAGE_BEFORE_PN += "${PN}-conf ${PN}-conf-gateway-demo"
+
+FILES:${PN}-conf += "${sysconfdir}/xdg/AGL/agl-service-audiomixer.conf.default"
+RDEPENDS:${PN}-conf = "${PN}"
+RPROVIDES:${PN}-conf = "agl-service-audiomixer.conf"
+ALTERNATIVE:${PN}-conf = "agl-service-audiomixer.conf"
+ALTERNATIVE_TARGET_${PN}-conf = "${sysconfdir}/xdg/AGL/agl-service-audiomixer.conf.default"
+
+FILES:${PN}-conf-gateway-demo += "${sysconfdir}/xdg/AGL/agl-service-audiomixer.conf.gateway-demo"
+RDEPENDS:${PN}-conf-gateway-demo = "${PN}"
+RPROVIDES:${PN}-conf-gateway-demo = "agl-service-audiomixer.conf"
+ALTERNATIVE:${PN}-conf-gateway-demo = "agl-service-audiomixer.conf"
+ALTERNATIVE_TARGET_${PN}-conf-gateway-demo = "${sysconfdir}/xdg/AGL/agl-service-audiomixer.conf.gateway-demo"
+ALTERNATIVE_PRIORITY_${PN}-conf-gateway-demo = "20"