This restores normal pre-r43715 200ms blink-period for the System LED we're all accustomed to see while our OpenWrt routers are booting.

Failsafe possibility will now be signalled with a new 100ms blinking, which is easily recognizable from the normal 200ms booting.

So no existing user will be scared by a new 500ms LED pattern, since such a slow pattern could easily be mistaken for something wrong... I was like "ok why my router is collapsing now, is this a bad flash, a kernel panic, or what else" when I've seen it for the first time ;)

Sorry for not having explained myself better in v1 of this patch.

Original:
Preinit, failsafe is possible: 200ms
Preinit, failsafe not possible anymore, booting normally: 200ms
Failsafe entered: 50ms

Now (after preinit_regular has been introduced):
Preinit, failsafe is possible: 200ms
Preinit, failsafe not possible anymore, booting normally: 500ms *here is the "offending" change*
Failsafe entered: 50ms

With my proposed patch:
Preinit, failsafe is possible: 100ms *indicate this condition with a new timing, that prompts the user to press the key if they want to start failsafe*
Preinit, failsafe not possible anymore, booting normally: 200ms *keep this as before*
Failsafe entered: 50ms

Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>

SVN-Revision: 44056

This new argument is used right after starting regular preinit (which
happens if failsafe wasn't triggered). The main purpose of "preinit"
argument is to indicate that failsafe can be triggered, however we were
missing a way to inform user that we don't wait for a trigger anymore.
With this change it's clear when failsafe mode can be triggered.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 43715

Currently, most platforms define such helpers in their own diag.sh
implementation with almost identical code. By factoring out the
common ground it's possible to simplify maintainability and
homogenize the haptics over multiple platforms (so far as is
reasonably practicable, in a next step).

[juhosg:
 - fix led_set_attr parameters in led_timer
 - add led_morse and status_led_set_morse helpers
 - add status_led_blink_{preinit,failsafe} helpers]

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 35648