#!/bin/sh
# NVRAM setup
#
# This file handles the NVRAM quirks of various hardware.

. /etc/network.overrides
alias debug=${DEBUG:-:}

# WGT634u
grep 'mtd0: 00060000' /proc/mtd 2>&- >&- && exit

remap () {
	for type in lan wifi wan pppoe
	do
		for s in '' s
		do
			eval nvram set ${type}_ifname$s=\"$(nvram get ${type}_ifname$s|sed s/$1/$2/g)\" 
		done
	done
}

nvram_default() {
	[ -z "$(nvram get $1)" ] && nvram set "$1=$2"
}

nvram_set() { # for the linksys fixup part
	[ "$(nvram get "$1")" = "$2" -a "$2" != "" ] || {
		COMMIT=1
		/usr/sbin/nvram set "$1=$2"
	}
}

# work around braindead CFE defaults in linksys routers
boardtype=$(nvram get boardtype)
boardflags=$(($(nvram get boardflags)))
[ "$boardtype" = "bcm94710dev" ] && boardtype="0xdeadbeef"
adm_switch="$(( ($boardflags & 0x80) >> 7 ))"
case "$(( $boardtype ))" in
	"$((0x708))")
		if [ "$adm_switch" = 0 ]; then
			nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
			[ "$COMMIT" = 1 ] && {
				nvram_set sdram_config 0x0062
				nvram_set clkfreq 216
				nvram_set sdram_ncdl 0x0
				nvram_set pa0itssit 62
				nvram_set pa0b0 0x15eb
				nvram_set pa0b1 0xfa82
				nvram_set pa0b2 0xfe66
				nvram_set pa0maxpwr 0x4e
			}
		fi
	;;
	"$((0x467))")
		nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
		[ "$COMMIT" = 1 ] && {
			nvram_set sdram_config 0x0062
			nvram_set sdram_ncdl 0x0
			nvram_set pa0itssit 62
			nvram_set pa0b0 0x168b
			nvram_set pa0b1 0xfabf
			nvram_set pa0b2 0xfeaf
			nvram_set pa0maxpwr 0x4e
		}
	;;
esac
[ "$COMMIT" = "1" ] && nvram commit


# linksys bug; remove when not using static configuration for lan
nvram set lan_proto="static"

# hacks for wrt54g 1.x hardware
[  "$(nvram get boardnum)"  = "42" \
-a "$(nvram get boardtype)" = "bcm94710dev" ] && {
	debug "### wrt54g 1.x hack ###"
	nvram set vlan1hwname="et0"
	nvram set vlan2hwname="et0"
	remap eth0 vlan2
	remap eth1 vlan1
}

# hacks for asus wl-500g deluxe
[  "$(nvram get boardtype)" = "bcm95365r" \
-a "$(nvram get boardnum)" = "45" ] && {
	debug "### wl-500g deluxe hacks ###"
	nvram set vlan0hwname="et0"
	nvram set vlan1hwname="et0"
	remap eth0.1 vlan0
	remap eth0 vlan1

	# set up the vlan*ports variables for the asus wl-500g deluxe
	# if they don't already exist 
	nvram_default vlan0ports "1 2 3 4 5*"
	nvram_default vlan1ports "0 5"
}

# hacks for asus
case "$(nvram get productid)" in 
	WL300g)
		debug "### wl-300g hacks ###"
		nvram set lan_ifnames="eth0 eth2"
		nvram set wan_ifname="none"
	;;
	WLHDD)
		debug "### wl-hdd hacks ###"
		nvram set lan_ifnames="eth1 eth2"
		nvram set wan_ifname="none"
	;;
	*)
		# wl-500g defaults. these are placed here, because WL-HDD and WL-300g
		# might have the same nvram settings.
		[ "$(nvram get boardnum)" = "asusX" \
		-a "$(nvram get boardtype)" = "bcm94710dev" ] && {
			nvram_default wan_device "eth1"
		}
	;;
esac

# hacks for wap54g hardware
[  "$(nvram get boardnum)" = "2" \
-o "$(nvram get boardnum)" = "1024" ] && {
	debug "### wap54g hack ###"
	nvram set wan_ifname="none"
}

# hacks for buffalo wla2-g54l
[  "$(nvram get boardnum)" = "00" \
-a "$(nvram get product_name)" = "Product_name" \
-o "$(nvram get product_name)" = "WLA2-G54L" ] && {
	debug "### wla2-g54l hacks ###"
	nvram set wan_ifname="none"
	nvram set lan_ifnames="vlan0"
}

# needed at least for wrt54gs v1.1 and wrt54g v2.0, v2.2
[ \! -z "$(nvram get boardrev)" ] && {
	nvram_default wl0id 0x4320
}

# defaults
nvram_default lan_ifname "br0"
nvram_default lan_ifnames "$FAILSAFE_ifnames"

nvram_default wan_ifname "vlan1"
nvram_default wan_device "vlan1"
nvram_default wan_proto "dhcp"

nvram_default wl0_ssid OpenWrt
nvram_default wl0_mode ap
nvram_default wl0_infra 1
nvram_default wl0_radio 1

WAN_PROTO="$(nvram get wan_proto)"
WAN_IFNAME="$(nvram get wan_ifname)"
case "$WAN_PROTO" in
	pp*) [ "${WAN_IFNAME%%[0-9]*}" = "ppp" ] || nvram set wan_ifname=ppp0;;
	*) [ "${WAN_IFNAME%%[0-9]*}" = "ppp" ] && nvram set wan_ifname="$(nvram get wan_device)";;
esac

[ "$(nvram get il0macaddr)" = "00:90:4c:5f:00:2a" ] && {
	# if default wifi mac, set two higher than the lan mac
	nvram set il0macaddr=$(nvram get et0macaddr|
	awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
}