ipq806x: add support for indicating the boot and upgrade state using four leds

Signed-off-by: Henryk Heisig hyniu@o2.pl

target/linux/ipq806x/base-files/etc/diag.sh

@@ -1,34 +1,45 @@
 #!/bin/sh
+# Copyright (C) 2016 Henryk Heisig hyniu@o2.pl
 
 . /lib/functions/leds.sh
 . /lib/ipq806x.sh
 
-get_status_led() {
-	case $(ipq806x_board_name) in
-	c2600)
-		status_led="c2600:blue:status"
-		;;
-	ea8500)
-		status_led="ea8500:white:power"
-		;;
-	esac
-}
+boot="$(ipq806x_get_dt_led boot)"
+failsafe="$(ipq806x_get_dt_led failsafe)"
+running="$(ipq806x_get_dt_led running)"
+upgrade="$(ipq806x_get_dt_led upgrade)"
 
 set_state() {
-	get_status_led
+	status_led="$boot"
 
 	case "$1" in
 	preinit)
 		status_led_blink_preinit
 		;;
 	failsafe)
+		status_led_off
+		[ -n "$running" ] && {
+			status_led="$running"
+			status_led_off
+		}
+		status_led="$failsafe"
 		status_led_blink_failsafe
 		;;
 	preinit_regular)
 		status_led_blink_preinit_regular
 		;;
+	upgrade)
+		[ -n "$running" ] && {
+			status_led="$upgrade"
+			status_led_blink_preinit_regular
+		}
+		;;
 	done)
-		status_led_on
+		status_led_off
+		[ -n "$running" ] && {
+			status_led="$running"
+			status_led_on
+		}
 		;;
 	esac
 }

target/linux/ipq806x/base-files/lib/ipq806x.sh

@@ -59,3 +59,15 @@ ipq806x_board_name() {
 
 	echo "$name"
 }
+
+ipq806x_get_dt_led() {
+	local label
+	local ledpath
+	local basepath="/sys/firmware/devicetree/base"
+	local nodepath="$basepath/aliases/led-$1"
+
+	[ -f "$nodepath" ] && ledpath=$(cat "$nodepath")
+	[ -n "$ledpath" ] && label=$(cat "$basepath$ledpath/label")
+
+	echo "$label"
+}

target/linux/ipq806x/base-files/lib/upgrade/platform.sh

@@ -59,3 +59,9 @@ platform_do_upgrade() {
 		;;
 	esac
 }
+
+blink_led() {
+	. /etc/diag.sh; set_state upgrade
+}
+
+append sysupgrade_pre_upgrade blink_led