4a-hal-generic: MACHINE-specific HAL config files

This patch adds a postinstall step to 4a-hal-generic recipe
to define HALs to be enabled/disabled depending on $MACHINE

As a consequence, 4a-hal-generic package is now machine specific.

Bug-AGL: SPEC-1405

Change-Id: Ibf418d71e898c3f9a2640b2ad4c8f4907bc5cb90
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>

1 files changed, 28 insertions, 0 deletions

diff --git a/meta-audio-4a-framework/recipes-multimedia/4a-hal-generic/4a-hal-generic_git.bb b/meta-audio-4a-framework/recipes-multimedia/4a-hal-generic/4a-hal-generic_git.bb
index 5981261c..0bff58ad 100644
--- a/meta-audio-4a-framework/recipes-multimedia/4a-hal-generic/4a-hal-generic_git.bb
+++ b/meta-audio-4a-framework/recipes-multimedia/4a-hal-generic/4a-hal-generic_git.bb
@@ -21,3 +21,31 @@ inherit afb-system-cmake
 #FILES_${PN}-dev += "${INSTALL_PREFIX}/4a-hal/htdocs"
 #FILES_${PN} += "${INSTALL_PREFIX}/afb-aaaa"
 #FILES_${PN} += "${INSTALL_PREFIX}/lib"
+
+# The package is machine-specific due to variable config content
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+
+# when no specific HAL is defined, use a generic usb one
+4A_HAL_LIST ??= "2ch-generic-usb"
+
+# for specific machines, activate only known HALs
+4A_HAL_LIST_m3ulcb          ?= "rcar-m3 rcar-m3kf"
+4A_HAL_LIST_h3ulcb          ?= "rcar-m3 rcar-m3kf"
+4A_HAL_LIST_intel-corei7-64 ?= "intel-minnow"
+4A_HAL_LIST_qemux86-64      ?= "intel-qemu"
+### TODO: this list should be completed for more machines
+
+do_install_append () {
+	# get pkgdir - note that '4a-hal' comes from project ${project_git_repo}/conf.d/cmake/config.cmake
+	PKGDIR=${D}/${INSTALL_PREFIX}/4a-hal
+
+	# move all config files to a 'available' dir
+	mv $PKGDIR/etc $PKGDIR/etc.available
+
+	# then install only required hals files in the etc folder
+	mkdir -p $PKGDIR/etc
+	for x in ${4A_HAL_LIST}; do
+		hal=hal-4a-$x.json
+		mv -v $PKGDIR/etc.available/${hal}.json $PKGDIR/etc/
+	done
+}