• Status Closed
  • Percent Complete
  • Task Type Patches
  • Category Battery/Charging
  • Assigned To No-one
  • Operating System All players
  • Severity Low
  • Priority Very Low
  • Reported Version Release 3.0
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: Rockbox
Opened by kugel. - 2008-12-18
Last edited by saratoga - 2009-01-18

FS#9663 - Sansa e200v2/Fuze: "nearly" fix buttonlight, enable backlight sw fading

This patch enables backlight sw fading for both mentioned targets. Looks nice on the Fuze.

It’s also supposed to fix buttonlight. It generally works, but it needs more work.
It’s quite unreliable!
It generally works if you press a button shortly after the very first buttonlight flash while booting, and it starts working if you do filesystem access. There may be other conditions.
It generally doesn’t work if you boot normally, until something mentioned above happens.

I just want to add: buttonlight ain’t trivial from what I’ve seen. Simply setting the pin is broken as soon as you add a MicroSD, since the MicroSD is blocking the GPIOD port. You basically cannot change xpd_func_sel to GPIO as long as you’re using the MicroSD. And the buttonlight doesn’t keep on just by setting the pin if you change to xpd.

What I did is what I found in the disassembly. It sets the Rod control register. It seems to work a bit, even though I have no idea what it actually is.

Enough talk, here’s the patch

Closed by  saratoga
2009-01-18 18:50
Reason for closing:  Accepted
Additional comments about closing:   Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407

Accepted in r19791 and r10792.

You forgot the backlight-target.h changes for e200v2

Update for the buttonlight, works good. It turns off for a split second at inserting a microsd, but I don't think it's a major issue (I'd even say it's a nice visual feedback on inserting the card).

Here's an update on backlight fading. The huge #if in backlight.c could actually reduced to HAVE_AS3514.


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