From 6ea20790b7571394a425040aa601e6cf7296d0dc Mon Sep 17 00:00:00 2001
From: Andrew Gaffney <agaffney@gentoo.org>
Date: Mon, 10 Mar 2008 00:38:49 +0000
Subject: [PATCH] Add support for --firmware and --firmware-dir options to
 include firmware in the initramfs

git-svn-id: svn+ssh://svn.gentoo.org/var/svnroot/genkernel/trunk@612 67a159dc-881f-0410-a524-ba9dfbe2cb84
---
 ChangeLog            |  5 +++++
 gen_cmdline.sh       | 14 ++++++++++++++
 gen_determineargs.sh |  2 ++
 gen_initramfs.sh     | 22 ++++++++++++++++++++++
 genkernel.conf       |  3 +++
 5 files changed, 46 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index c5cde12..928101d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,11 @@
 # Copyright 2006-2008 Gentoo Foundation; Distributed under the GPL v2
 # $Header: $
 
+  10 Mar 2008; Andrew Gaffney <agaffney@gentoo.org> gen_cmdline.sh,
+  gen_determineargs.sh, gen_initramfs.sh, genkernel.conf:
+  Add support for --firmware and --firmware-dir options to include firmware in
+  the initramfs
+
   09 Mar 2008; Andrew Gaffney <agaffney@gentoo.org> generic/linuxrc:
   Apply patch from Vince C <v_cadet@yahoo.fr> to mount sysfs prior to loading
   modules, so that the mdev firmware loading can actually work
diff --git a/gen_cmdline.sh b/gen_cmdline.sh
index 4408900..b556127 100755
--- a/gen_cmdline.sh
+++ b/gen_cmdline.sh
@@ -117,6 +117,11 @@ longusage() {
   echo "	--initramfs-overlay=<dir>"
   echo "				Directory structure to include in the initramfs,"
   echo "				only available on 2.6 kernels"
+  echo "	--firmware"
+  echo "				Enable copying of firmware into initramfs"
+  echo "	--firmware-dir=<dir>"
+  echo "				Specify directory to copy firmware from (defaults"
+  echo "				to /lib/firmware)"
 }
 
 usage() {
@@ -476,6 +481,15 @@ parse_cmdline() {
 			CMD_LUKS=1
 			print_info 2 "CMD_LUKS: ${CMD_LUKS}"
 			;;
+		--firmware)
+			CMD_FIRMWARE=1
+			print_info 2 "CMD_FIRMWARE: ${CMD_FIRMWARE}"
+			;;
+		--firmware-dir=*)
+			CMD_FIRMWARE_DIR=`parse_opt "$*"`
+			CMD_FIRMWARE=1
+			print_info 2 "CMD_FIRMWARE_DIR: ${CMD_FIRMWARE_DIR}"
+			;;
 		all)
 			BUILD_KERNEL=1
 			BUILD_MODULES=1
diff --git a/gen_determineargs.sh b/gen_determineargs.sh
index f025389..6a7b872 100644
--- a/gen_determineargs.sh
+++ b/gen_determineargs.sh
@@ -114,6 +114,8 @@ determine_real_args() {
 	set_config_with_override 1 DISKLABEL            CMD_DISKLABEL
 	set_config_with_override 1 LUKS                 CMD_LUKS
 	set_config_with_override 1 MDADM                CMD_MDADM
+	set_config_with_override 1 FIRMWARE             CMD_FIRMWARE
+	set_config_with_override 2 FIRMWARE_DIR         CMD_FIRMWARE_DIR         "/lib/firmware"
 
 		BOOTDIR=`arch_replace "${BOOTDIR}"`
 		BOOTDIR=${BOOTDIR%/}    # Remove any trailing slash
diff --git a/gen_initramfs.sh b/gen_initramfs.sh
index a9ee20f..b5a15bd 100644
--- a/gen_initramfs.sh
+++ b/gen_initramfs.sh
@@ -251,6 +251,23 @@ append_overlay(){
 	cd ${INITRAMFS_OVERLAY}
 	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}"
 }
+
+append_firmware() {
+	if [ ! -d "${FIRMWARE_DIR}" ]
+	then
+		gen_die "specified firmware directory (${FIRMWARE_DIR}) does not exist"
+	fi
+	if [ -d "${TEMP}/initramfs-firmware-temp" ]
+	then
+		rm -r "${TEMP}/initramfs-firmware-temp/"
+	fi
+	mkdir -p "${TEMP}/initramfs-firmware-temp/lib/firmware"
+	cp -a "${FIRMWARE_DIR}/*" ${TEMP}/initramfs-firmware-temp/lib/firmware/
+	find . -print | cpio ${CPIO_ARGS} --append -F "${CPIO}" \
+		|| gen_die "appending firmware to cpio"
+	rm -r "${TEMP}/initramfs-firmware-temp/"
+}
+
 print_list()
 {
 	local x
@@ -449,6 +466,11 @@ create_initramfs() {
 	append_data 'blkid' "${DISKLABEL}"
 	append_data 'splash' "${SPLASH}"
 
+	if isTrue "${FIRMWARE}" && [ -n "${FIRMWARE_DIR}" ]
+	then
+		append_data 'firmware'
+	fi
+
 	# This should always be appended last
 	if [ "${INITRAMFS_OVERLAY}" != '' ]
 	then
diff --git a/genkernel.conf b/genkernel.conf
index 8ab0ac7..305e8e6 100755
--- a/genkernel.conf
+++ b/genkernel.conf
@@ -69,6 +69,9 @@ USECOLOR="yes"
 # Copy /etc/mdadm.conf to initramfs.
 # MDADM="no"
 
+# Enable copying of firmware into initramfs
+# FIRMWARE="no"
+# FIRMWARE_DIR="/lib/firmware"
 
 # =========Low Level Compile Settings=========
 #
-- 
2.26.2