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
-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
-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
Re: can openmoko be in suspend and keep the backlight on?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Nils Faerber wrote: > Lars-Peter Clausen schrieb: >> Timo Juhani Lindfors wrote: >>> Hi, just out of curiosity, is it possible to suspend the main >>> cpu but still keep the display backlight on? (I have no >>> practical use for this, it would be useful only if we could >>> keep screen contents visible too). >> Yes it could be done, but whould be quite hackish. For screen >> content the glamo needs to be running too. > > And glamo gets the contents from where? The DRAM? The DRAM cannot > go into self-refresh and thus the CPU suspend mode only saves very > little power. Nope. At least not form the main memory the glamo has it's own memory. - - Lars -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAksNamsACgkQBX4mSR26RiMAKgCdEw65gBzVhUwSV8+kC0TtdWpp p6YAn0GDP1e5qRRYXKsjh44CdvJr0P/s =hAsT -END PGP SIGNATURE- ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
Re: can openmoko be in suspend and keep the backlight on?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Timo Juhani Lindfors wrote: > Hi, > > just out of curiosity, is it possible to suspend the main cpu but > still keep the display backlight on? (I have no practical use for > this, it would be useful only if we could keep screen contents > visible too). > Yes it could be done, but whould be quite hackish. For screen content the glamo needs to be running too. - - Lars -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAksMCXAACgkQBX4mSR26RiO1RgCfQqQB60lOp8oFaix6sSHNYbCn uQoAn2uptW1fJU5RZaOjaWmPjc15nfno =yHJY -END PGP SIGNATURE- ___ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware
