Re: LED blinking during suspend
On Thu, Dec 17, 2009 at 11:55:53PM +0100, Michael 'Mickey' Lauer wrote: > Am Donnerstag, den 17.12.2009, 23:06 +0100 schrieb Michael Trimarchi: > > the android-kernel now has a lot of feature: > > - frequency scaling > > - FCSE from arm mailing list > > The result is an incredible performance on Android > Congrats... anything in for us GNU/Linux weenies as well? The S3C24xx CPU frequency scaling support is in mainline now. ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
Am Donnerstag, den 17.12.2009, 23:06 +0100 schrieb Michael Trimarchi: > the android-kernel now has a lot of feature: > > - frequency scaling > - FCSE from arm mailing list > > The result is an incredible performance on Android Congrats... anything in for us GNU/Linux weenies as well? Cheers, -- :M: ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
Michael Trimarchi writes: > - frequency scaling And GSM works with frequency scaling now? Sounds very useful indeed. Are these patches available separately and do they apply to andy-tracking? -Timo ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Timo Juhani Lindfors wrote: > Lars-Peter Clausen writes: >> Leds can either be on or off during suspend. Blinking is not >> possible. > > Really? Here with andy-tracking LEDs always turn off when I suspend > > Yes, but that's a software limitation. I had leds on while the device was suspended. - - Lars -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAksqq/kACgkQBX4mSR26RiPGCgCbBYj0sq0kIxGVLSteSwMiRcHm P1AAn1yO5flR3lJi+V7pVfihr+wAILz3 =5nUp -END PGP SIGNATURE- ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
Lars-Peter Clausen writes: > Leds can either be on or off during suspend. Blinking is not possible. Really? Here with andy-tracking LEDs always turn off when I suspend. ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
Hi, Lars-Peter Clausen wrote: > > You need a modified kernel, but it's a one liner. Add > .retain_state_suspended = 1, > > to the led struct in arch/arm/mach-gta02.c > Hmm - but not something that can be implemented for everyone unless its in the standard kernel in shr. Lars-Peter Clausen wrote: > > And only if it's on you'll turn the device on to see what > actually happened. > That's what I thought too - but with the LED's not particularly visible (being placed on the sides) - unless they're blinking (which doesn't seem possible) and the current consumption being so high - I'm not so sure. Some experimenting will help I guess. Thanks. -- View this message in context: http://n2.nabble.com/LED-blinking-during-suspend-tp4174042p4175728.html Sent from the Openmoko Hardware mailing list archive at Nabble.com. ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Werner Almesberger wrote: > c_c wrote: >> If I set the LED light on, and suspend the phone - does it stay >> on automatically - or do I need more magic? > > As far as the hardware is concerned, it will stay on. I'm too lazy > to check if the kernel will turn it off for you in suspend :) > You need a modified kernel, but it's a one liner. Add .retain_state_suspended = 1, to the led struct in arch/arm/mach-gta02.c >> What about the current consumption? > > About 5 mA per LED. About 50 mA per LED if the LED has the base > resistor problem. Normal suspend current with GSM on should be > somewhere around 8 mA, maybe a bit less. So the LED would take a > considerable bite out of that, > > From a usability point of view, I'm quite sceptical about this idea > of using a LED as a permanent indicator. LEDs are very limited in > the amount of information they can signal to a human being, and if > you have a lot of different states to signal, the patterns may not > be very intuitive. > > I think it would be interesting to try to find a way for resuming > the display really quickly, so that one could just bring up the > screen, check the status indicators for any news, and then send the > device back to sleep. Actually it is already pretty fast with a recent kernel and xf86-video-glamo. I would say about a second. A led as an indicator that something has happened is imo pretty nice, because you don't have to press any buttons nor have to really focus your eyes. And only if it's on you'll turn the device on to see what actually happened. - - Lars > > - Werner > > ___ hardware mailing > list hardware@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/hardware -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkso4wIACgkQBX4mSR26RiMNzQCfa/B8vdfqoIVLLaXykIblnqRF HmUAn1yJgafjKzaQoxBMNWiA/bIZDJni =ZV2b -END PGP SIGNATURE- ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dr. Michael Lauer wrote: >> Leds can either be on or off during suspend. Blinking is not >> possible. Same with vibrator. >> >> You can let the audio chip on during suspend. But since you won't >> be able to send any audio data from the cpu it's not that useful, >> except if you want to suspend the main cpu while having a phone >> conversation. > > Speaking about that, have there been any improvement towards > no-idle-ticks and/or clock-changing for s3c24x0 in 2.6.31? > > For some applications it'd be still very appealing to keep the CPU > on, but with the least possible clock frequency. > > :M: > > > > ___ hardware mailing > list hardware@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/hardware Hi Afaik Michael Trimarchi was working on it - - Lars -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkso4DEACgkQBX4mSR26RiO5QwCfSGq9OVtYE+SvBCMhWKrWtQOC Vn8Ani9HtJFyvMF/pmUQ3NLH0tZhziL0 =uM32 -END PGP SIGNATURE- ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
c_c wrote: > If I set the LED light on, and suspend the phone - does it stay on > automatically - or do I need more magic? As far as the hardware is concerned, it will stay on. I'm too lazy to check if the kernel will turn it off for you in suspend :) > What about the current consumption? About 5 mA per LED. About 50 mA per LED if the LED has the base resistor problem. Normal suspend current with GSM on should be somewhere around 8 mA, maybe a bit less. So the LED would take a considerable bite out of that, >From a usability point of view, I'm quite sceptical about this idea of using a LED as a permanent indicator. LEDs are very limited in the amount of information they can signal to a human being, and if you have a lot of different states to signal, the patterns may not be very intuitive. I think it would be interesting to try to find a way for resuming the display really quickly, so that one could just bring up the screen, check the status indicators for any news, and then send the device back to sleep. - Werner ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
Hi, OK. Lets say there are pending notifications that the user needs to see. If I set the LED light on, and suspend the phone - does it stay on automatically - or do I need more magic? What about the current consumption? How badly would this affect battery life? I'm looking at getting just enough information to decide whether this is an idea worth pursuing or not. Thanks. -- View this message in context: http://n2.nabble.com/LED-blinking-during-suspend-tp4174042p4174815.html Sent from the Openmoko Hardware mailing list archive at Nabble.com. ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
> Leds can either be on or off during suspend. Blinking is not possible. > Same with vibrator. > > You can let the audio chip on during suspend. But since you won't be > able to send any audio data from the cpu it's not that useful, except > if you want to suspend the main cpu while having a phone conversation. Speaking about that, have there been any improvement towards no-idle-ticks and/or clock-changing for s3c24x0 in 2.6.31? For some applications it'd be still very appealing to keep the CPU on, but with the least possible clock frequency. :M: ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: LED blinking during suspend
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 c_c wrote: > Hi, > Is it possible to blink the FR's LED's (red/orange/blue - any / either) > while the phone is in suspend? > I'm looking at this as a method to indicate to the user that some > notification needs his attn (missed call/sms/task etc) while the phone is > suspended. > Can the vibrator / audio system be used while in suspend? > Thanks. Hi Leds can either be on or off during suspend. Blinking is not possible. Same with vibrator. You can let the audio chip on during suspend. But since you won't be able to send any audio data from the cpu it's not that useful, except if you want to suspend the main cpu while having a phone conversation. - - Lars -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAksoqdoACgkQBX4mSR26RiNsEgCaAh81GX2nki5lpfZOBZT4tIBo R2EAn3eAh92UijaoyL22NrHhLyRhBX6F =gF7j -END PGP SIGNATURE- ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
LED blinking during suspend
Hi, Is it possible to blink the FR's LED's (red/orange/blue - any / either) while the phone is in suspend? I'm looking at this as a method to indicate to the user that some notification needs his attn (missed call/sms/task etc) while the phone is suspended. Can the vibrator / audio system be used while in suspend? Thanks. -- View this message in context: http://n2.nabble.com/LED-blinking-during-suspend-tp4174042p4174042.html Sent from the Openmoko Hardware mailing list archive at Nabble.com. ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
