package/uboot-envtools: generate config-file from UCI

This adds an init-script for generating /etc/fw_env.config from UCI in
case it doesn't exist yet.

Signed-off-by: Daniel Golle <dgolle@allnet.de>

SVN-Revision: 28697

package/uboot-envtools/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=uboot-envtools
 PKG_DISTNAME:=u-boot
 PKG_VERSION:=2011.06
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_DISTNAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=ftp://ftp.denx.de/pub/u-boot
@@ -36,6 +36,8 @@ define Package/uboot-envtools/install
 	$(INSTALL_DIR) $(1)/usr/sbin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/fw_printenv $(1)/usr/sbin/
 	ln -sf fw_printenv $(1)/usr/sbin/fw_setenv
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/uboot-envtools.init $(1)/etc/init.d/uboot-envtools
 endef
 
 define Build/Prepare

package/uboot-envtools/files/uboot-envtools.init

@@ -0,0 +1,27 @@
+#!/bin/sh /etc/rc.common
+# (C) 2011 OpenWrt.org
+# Creates /etc/fw_env.conf for fw_printenv (and fw_setenv)
+
+START=80
+
+create_fwenv_config() {
+	local dev
+	local offset
+	local envsize
+	local secsize
+	local numsec
+	config_get dev "$1" dev
+	config_get offset "$1" offset "0x0000"
+	config_get envsize "$1" envsize
+	config_get secsize "$1" secsize
+	config_get numsec "$1" numsec
+	echo "$dev		$offset		$envsize		$secsize		$numsec" >>/etc/fw_env.config
+}
+
+start() {
+	[ ! -e /etc/fw_env.config ] && {
+		echo "# MTD device name	Device offset	Env. size	Flash sector size	Number of sectors" >/etc/fw_env.config
+		config_load ubootenv
+		config_foreach create_fwenv_config ubootenv
+	}
+}