base-files: add a hardware detection layer

this allows targets to use the new uci-default helper which will generate
a file called /etc/board.json. a tool called /bin/config_generate can then
be used to generate the default uci settings.

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42185 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 187 insertions, 0 deletions

diff --git a/package/base-files/files/bin/board_detect b/package/base-files/files/bin/board_detect
new file mode 100755
index 0000000000..ddd17a1633
--- /dev/null
+++ b/package/base-files/files/bin/board_detect
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+[ -d "/etc/board.d/" -a ! -f "/etc/board.json" ] || {
+	for a in `ls /etc/board.d/*`; do
+		[ -x $a ] || continue;
+		$(. $a)
+	done
+}
+
+[ -f "/etc/board.json" ] || return 1
+[ -f "/etc/config/network" ] || {
+	touch /etc/config/network
+	/bin/config_generate
+}
diff --git a/package/base-files/files/bin/config_generate b/package/base-files/files/bin/config_generate
new file mode 100755
index 0000000000..c435e7bb43
--- /dev/null
+++ b/package/base-files/files/bin/config_generate
@@ -0,0 +1,173 @@
+#!/bin/sh
+
+CFG=/etc/board.json
+
+. /usr/share/libubox/jshn.sh
+
+[ -f $CFG ] || exit 1
+
+generate_static_network() {
+	uci -q batch <<EOF
+delete network.loopback
+set network.loopback='interface'
+set network.loopback.ifname='lo'
+set network.loopback.proto='static'
+set network.loopback.ipaddr='127.0.0.1'
+set network.loopback.netmask='255.0.0.0'
+delete network.globals
+set network.globals='globals'
+set network.globals.ula_prefix='fdb1:a57f:2544::/48'
+EOF
+}
+
+next_vlan=3
+generate_network() {
+	local vlan
+
+	json_select network
+	json_select $1
+	json_get_vars ifname create_vlan macaddr
+	json_select ..
+	json_select ..
+
+	[ -n "$ifname" ] || return
+	[ "$create_vlan" -eq 1 ] && case $1 in
+	lan) vlan=1;;
+	wan) vlan=2;;
+	*)
+		vlan=$next_vlan
+		next_vlan=$((next_vlan + 1))
+		;;
+	esac
+	[ -n "$vlan" ] && ifname=${ifname}.${vlan}
+	uci -q batch <<EOF
+delete network.$1
+set network.$1='interface'
+set network.$1.ifname='$ifname'
+set network.$1.force_link=1
+set network.$1.proto='none'
+set network.$1.macaddr='$macaddr'
+EOF
+
+	case $1 in
+	lan) uci -q batch <<EOF
+set network.$1.type='bridge'
+set network.$1.proto='static'
+set network.$1.ipaddr='192.168.1.1'
+set network.$1.netmask='255.255.255.0'
+set network.$1.ip6assign='60'
+EOF
+		;;
+	wan) uci -q batch <<EOF
+set network.$1.proto='dhcp'
+delete network.wan6
+set network.wan6='interface'
+set network.wan6.ifname='@wan6'
+set network.wan6.proto='dhcpv6'
+EOF
+		;;
+	esac
+}
+
+generate_switch_vlan() {
+	local device=$1
+	local vlan=$2
+	local cpu_port=$3
+
+	case $vlan in
+	lan)	vlan=1;;
+	wan)	vlan=2;;
+	*)	vlan=${vlan##vlan};;
+	esac
+
+	json_select vlans
+	json_select $2
+	json_get_values ports
+	json_select ..
+	json_select ..
+
+	uci -q batch <<EOF
+add network switch_vlan
+set network.@switch_vlan[-1].device='$device'
+set network.@switch_vlan[-1].vlan='$vlan'
+set network.@switch_vlan[-1].ports='$ports ${cpu_port}t'
+EOF
+}
+
+generate_switch() {
+	local key=$1
+	local vlans
+
+	json_select switch
+	json_select $key
+	json_get_vars enable reset blinkrate cpu_port
+
+	[ -n "$cpu_port" ] || return
+
+	uci -q batch <<EOF
+add network switch
+set network.@switch[-1].name='$key'
+set network.@switch[-1].reset='$reset'
+set network.@switch[-1].enable_vlan='$enable'
+set network.@switch[-1].blinkrate='$blinkrate'
+EOF
+
+	json_get_keys vlans vlans
+	for vlan in $vlans; do generate_switch_vlan $1 $vlan $cpu_port; done
+	json_select ..
+	json_select ..
+}
+
+generate_led() {
+	local key=$1
+	local cfg="led_$key"
+
+	json_select led
+	json_select $key
+	json_get_vars name sysfs type trigger device interface default
+	json_select ..
+	json_select ..
+
+	uci -q batch <<EOF
+delete system.$cfg
+set system.$cfg='led'
+set system.$cfg.name='$name'
+set system.$cfg.sysfs='$sysfs'
+set system.$cfg.dev='$device'
+set system.$cfg.trigger='$trigger'
+set system.$cfg.port_mask='$port_mask'
+set system.$cfg.default='$default'
+EOF
+	case $type in
+	netdev)
+		uci -q batch <<EOF
+set system.$cfg.trigger='netdev'
+set system.$cfg.mode='link tx rx'
+EOF
+	;;
+
+	usb)
+		uci -q batch <<EOF
+set system.$cfg.trigger='usbdev'
+set system.$cfg.interval='50'
+EOF
+	;;
+
+	esac
+}
+
+json_init
+json_load "$(cat ${CFG})"
+
+generate_static_network
+
+json_get_keys keys network
+for key in $keys; do generate_network $key; done
+
+json_get_keys keys switch
+for key in $keys; do generate_switch $key; done
+
+json_get_keys keys led
+for key in $keys; do generate_led $key; done
+
+uci commit