support for led notifications
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@Flohack Thanks for your warm welcome. Not sure if I will come onboard. I am more of a drive-by developer but lets see how it rolls.
Thanks for pointing me to the Postal service. If I understand you correctly you think that it is best if this Light thinghy can be notified by dbus of certain states/changes (pending messages, bluetooth discoverability, battery low)?
Wouldn't that cause modification of lots of services/stuff to become aware if this new led controller? I am trying to keep the changes more in one place.
Above all do you agree with the approach of having this 'led authority' as you call it, located in repowerd?
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@wdehoog Yeah lets see how this rolls ^^
- Well no I am not concerned that this will cause many changes: LED is currently only used by notifications, and this is already centralized, so its one place to change. I agree on the DBus architecture as it is the most commonly used thing for IPC in UT.
- I forgot one thing: All LED message classes should be configureable via system settings, so your addon to repowerd also needs to be able to remember what the user has turned on and what not. Otherwise I can hear already the many voices complaining that they cannot turn off x ^^
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@Flohack said in support for led notifications:
I forgot one thing: All LED message classes should be configureable via system settings, so your addon to repowerd also needs to be able to remember what the user has turned on and what not. Otherwise I can hear already the many voices complaining that they cannot turn off x ^^
This would be outside the scope of repowerd handling of the hardware itself, I think. Instead, for notifications level configuration, this would be handled by the code which handles notifications, and then requests the LED to be set to a color or whatever.
Anyway, I also think we shouldn't let any configuration possibilities get too out of hand. More configuration means more problems.
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@dobey Well we can put it into a separate component, but the entry barrier will be higher, it would be a standalone service, or would you put it into Postal or such? Anyways, if we want to have morethan one meaning for the LED we need something that holds this state of alternatives. Putting it into repowerd might be not the most elegant way but its a scope that a single dev can handle probably.
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@Flohack Well, as a comparison, the Power and Volume keys have multiple meanings, and all those meanings are not handled by repowerd. It only deals with the hardware, and unity8 decides whether the screen should be turned off, the reboot menu should be opened, volume should be changed, or a screenshot taken.
Likewise, repowerd should only handle the direct interaction with the LED hardware. It shouldn't manage itself what needs the LED is being used for; only handle the requests from above to set the state to on, off, blinking, pulsing, and what color it should be; and maybe deal with conflicts if multiple things want to set the state.
As for notifications, this is another area of the system that has long needed much refactoring and consolidation. Currently it's all spread across multiple components and is quite a mess. "Better LED handling for things" is as good a reason as any to start getting things cleaned up there as well. For an immediate solution, keeping the same LED usage and simply moving the core hardware interaction into repowerd with unity8 asking it to turn the LED on and off, rather than doing itself, is the way forward. Then a little more refactoring could be done to enable charging status along with the current generic notifications usage. And then more from there later on.
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@dobey @Flohack
repowerd seems to do more then handling hardware. It contains a class DefaultStateMachine that also keeps track of state and for example takes care of the display dimming and turing off.
It also knows about the battery state. For the proposed led states (charging/low/full/bt/notifications) repowerd seems like a good place for now.unity currently detects unread notifications by checking if a dbus signal (Changed) contains a "message" part with an "icon" field with a string containing "indicator-messages-new". When the display is off it sets the led. I guess repowerd can also listen to this signal.
I'll gladly move the led stuff stuff somewhere else but the current unity place (qml\Panel\Indicators\IndicatorsLight.qml) feels like the wrong one. A friend of mine (owned a ut-phone) suggested the lockscreen should manage the led state.
If it is decided that the led indicator is usefull and should be part of ubports then indeed configurability should not be overdone. Some already existing config file would allow things to be disabled if really needed.
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@wdehoog said in support for led notifications:
It contains a class DefaultStateMachine that also keeps track of state and for example takes care of the display dimming and turing off.
Yes, repowerd is the thing which tells the hardware what to do here. It is the implementation for such pieces of hardware interaction. It is not where policy is decided though. It is simply told when the display should be dimmed or powered off, when an alarm event should be triggered, etc… It is itself not a full stack.
@wdehoog said in support for led notifications:
I guess repowerd can also listen to this signal.
No, repowerd should not implement any part of indicator rendering.
@wdehoog said in support for led notifications:
I'll gladly move the led stuff stuff somewhere else but the current unity place (qml\Panel\Indicators\IndicatorsLight.qml) feels like the wrong one
It may not be the right place, but it is a sufficient one for now. There's no need to move the "should the LED be enabled, and how" to somewhere else. The only part that should be moved to repowerd is the part that actually turns the LED on, off, blinks/pulses it, and such. It should not do more than that.
@wdehoog said in support for led notifications:
A friend of mine (owned a ut-phone) suggested the lockscreen should manage the led state.
Friends and users do not developers make. The lock screen is definitely the wrong place. The current location is fine for the level of refactoring which needs to be done now, to achieve what you want. There's no need to grow things beyond their need yet.
@wdehoog said in support for led notifications:
If it is decided that the led indicator is usefull and should be part of ubports then indeed configurability should not be overdone. Some already existing config file would allow things to be disabled if really needed.
There is no need to worry about this level of configuration yet, to achieve the immediate goal of charging/charged LED status.
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@dobey
So repowerd will listen on dbus to set the led on/off state, color and pulse rate.
Unity will decide if and how the led should shine.Now the thing is repowerd already knows about the battery state and the display state.
So I think part of the policy could best be done in repowerd:- only show the led when the display is off
- indicate battery low (or hot?)
- if no other state for the led is set then show charging/full
unity will then set the led state regarding unread messages, bluetooth or whatever comes next
But I am new here so you I'll follow your advice.
The order would then be
- move led hardware control to repowerd.
- Allow the led state to be controlled through dbus.
- Let unity use the led using dbus (extend Powerd plugin, remove Lights plugin).
- Add led indication of battery state low/charging/full.
Question is where should this be done and how does it get the battery info?
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@wdehoog Willem, according to the discussion we've had on Telegram, only for convenience I'm reporting here the required output taken out from my Pro5, reviving the present thread:
- Case from "Close to full charging" to "Fully charged": USB phone charging with black screen and white led blinking all the time - charged today from 77% to 100%-------> Full report - Pro5.
Thank you.
Matteo
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@matteo could you paste the whole unity8.log file?
weird stuff going on:
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sometimes deviceState is charging/discharging and sometimes it is empty
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battery level sometimes is 0
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while discharging the level goes up
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I think what we've found is that the Meizu phones (MX4 and Pro 5) only have a single-color LED below the screen (where the Android home button would be), and for whatever reason Unity8 only knows how to make it blink, never solid.
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@wdehoog updated the previous post with the full report. I also saw that 0% charging level....weird indeed. Thank you for your help.
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I was a bit suprised about shining led couple days ago, when I charged my Nexus 5. And even more when it turned different color after charged full. Good job, whoever made it work!
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Willem, here below the full unity8 report:
Let me know if you need additional check.
Regards.
Matteo
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@matteo to test your leds. It is also interesting to see the permissions. For example on opo:
phablet@ubuntu-phablet:~$ find /sys -name brightness -ls 13414 0 -rw-rw-r-- 1 system android_input 4096 Jan 5 20:48 /sys/devices/f9924000.i2c/i2c-2/2-0068/leds/red/brightness 13442 0 -rw-rw-r-- 1 system android_input 4096 Jan 5 20:48 /sys/devices/f9924000.i2c/i2c-2/2-0068/leds/blue/brightness 13428 0 -rw-rw-r-- 1 system android_input 4096 Jan 5 20:48 /sys/devices/f9924000.i2c/i2c-2/2-0068/leds/green/brightness 11561 0 -rw-rw-r-- 1 system android_input 4096 Jan 5 20:48 /sys/devices/mdp.0/qcom,mdss_fb_primary.169/leds/lcd-backlight/brightness 19339 0 -rwxrwxrwx 1 system android_media 4096 Mar 3 1970 /sys/devices/leds-qpnp-f6287e00/leds/led:flash_torch/brightness 19303 0 -rwxrwxrwx 1 system android_media 4096 Mar 3 1970 /sys/devices/leds-qpnp-f6287e00/leds/led:flash_0/brightness 19320 0 -rwxrwxrwx 1 system android_media 4096 Mar 3 1970 /sys/devices/leds-qpnp-f6287e00/leds/led:flash_1/brightness 17399 0 -rw-r--r-- 1 root root 4096 Jan 7 20:27 /sys/devices/leds-qpnp-f628c000/leds/kpdbl-pwm-2/brightness 17421 0 -rw-r--r-- 1 root root 4096 Jan 7 20:27 /sys/devices/leds-qpnp-f628c000/leds/kpdbl-pwm-3/brightness 17443 0 -rw-r--r-- 1 root root 4096 Jan 7 20:27 /sys/devices/leds-qpnp-f628c000/leds/kpdbl-pwm-4/brightness 17377 0 -rw-rw-r-- 1 system android_input 4096 Jan 5 20:48 /sys/devices/leds-qpnp-f628c000/leds/button-backlight/brightness 16275 0 -rw-rw-r-- 1 system android_input 4096 Mar 3 1970 /sys/devices/qcom,camera-led-flash.83/leds/torch-light/brightness 17292 0 -rw-r--r-- 1 root root 4096 Jan 7 20:27 /sys/devices/msm_sdcc.1/leds/mmc0::/brightness 17335 0 -rw-r--r-- 1 root root 4096 Jan 7 20:27 /sys/devices/msm_sdcc.2/leds/mmc1::/brightnessIf 'phablet' is allowed you can try:
echo 1 > /sys/...../brightnessif not you must do it as root:
sudo bash -c "echo 1 > /sys/...../brightness"(replace the dots with the full path) and try to echo different values (0,1,64,255)
Then it would also be interesting to show what other files reside in the same directories as the 'brightness' file. For example on opo:
phablet@ubuntu-phablet:~$ ls -l /sys/devices/leds-qpnp-f6287e00/leds/led:flash_torch/ total 0 -rwxrwxrwx 1 system android_media 4096 Mar 3 1970 brightness lrwxrwxrwx 1 root root 0 Jan 7 20:33 device -> ../../../leds-qpnp-f6287e00 -rw-rw-r-- 1 root root 4096 Jan 7 20:33 flash_blink -rw-rw-r-- 1 root root 4096 Jan 7 20:33 led_mode -rw-r--r-- 1 root root 4096 Jan 7 20:33 max_brightness drwxr-xr-x 2 root root 0 Mar 3 1970 power -rw-rw-r-- 1 root root 4096 Jan 7 20:33 strobe lrwxrwxrwx 1 root root 0 Jan 5 20:48 subsystem -> ../../../../class/leds -rw-r--r-- 1 root root 4096 Jan 7 20:33 trigger -rw-r--r-- 1 root root 4096 Mar 3 1970 ueventAnd please post a
dmesglog somewhere. Maybe this is related: https://e2e.ti.com/support/power-management/f/196/t/421131 -
@wdehoog hi Willem, thank you for the suggestions. I searched on the internet and what @UniSuperBox said before about only the white color to be natively available on the Meizu phones seems correct: at least one app does exist on Flyme/Android side able to unleash all the other colors for the Pro5 as well, so maybe also for UT a work-around could be eventually feasible somehow ---------> RGB led notification Flyme
Now, here below the check I made.
phablet@ubuntu-phablet:~$ sudo find /sys -name brightness -ls 8459 0 -rw-rw---- 1 system system 4096 gen 9 09:06 /sys/devices/virtual/backlight/pwm-backlight.0/brightness 15318 0 -rw-rw-rw- 1 root root 4096 gen 9 09:06 /sys/devices/gpioi2c0.14/i2c-12/12-0030/leds/m86_led/brightness 15238 0 -rw-r--r-- 1 root root 4096 gen 9 09:23 /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/flash0/brightness 15252 0 -rw-r--r-- 1 root root 4096 gen 9 09:23 /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/flash1/brightness 15266 0 -rw-r--r-- 1 root root 4096 gen 9 09:23 /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/torch0/brightness 15280 0 -rw-r--r-- 1 root root 4096 gen 9 09:23 /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/torch1/brightnessI typed
sudo bash -c "echo 1 > /sys/...../brightness"for all of the items listed above but apparently it didn't work; actually, the only consequence I've seen is when I got the usb cable connected powering up the phone with the notification light blinking, just after sending one of those commands the light suddenly disappeared.
The following is what I have got in each of the folders above listed:phablet@ubuntu-phablet:~$ ls -l /sys/devices/virtual/backlight/pwm-backlight.0/ total 0 -r--r--r-- 1 root root 4096 gen 9 09:35 actual_brightness -rw-r--r-- 1 root root 4096 gen 9 09:35 bl_power -rw-rw---- 1 system system 4096 gen 9 09:30 brightness -r--r--r-- 1 root root 4096 gen 9 09:35 max_brightness drwxr-xr-x 2 root root 0 gen 9 09:06 power lrwxrwxrwx 1 root root 0 gen 9 09:06 subsystem -> ../../../../class/backlight -r--r--r-- 1 root root 4096 gen 9 09:35 type -rw-r--r-- 1 root root 4096 gen 9 09:05 ueventphablet@ubuntu-phablet:~$ ls -l /sys/devices/gpioi2c0.14/i2c-12/12-0030/leds/m86_led/ total 0 -rw-rw-rw- 1 root root 4096 gen 9 09:24 brightness lrwxrwxrwx 1 root root 0 gen 9 09:37 device -> ../../../12-0030 -rw-r--r-- 1 root root 4096 gen 9 09:37 led_current -r--r--r-- 1 root root 4096 gen 9 09:37 max_brightness -r--r--r-- 1 root root 4096 gen 9 09:37 max_current drwxr-xr-x 2 root root 0 gen 9 09:06 power lrwxrwxrwx 1 root root 0 gen 9 09:06 subsystem -> ../../../../../../class/leds -rw-r--r-- 1 root root 4096 gen 9 09:37 trigger -rw-r--r-- 1 root root 4096 gen 9 09:05 ueventphablet@ubuntu-phablet:~$ ls -l /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/flash0/ total 0 -rw-r--r-- 1 root root 4096 gen 9 09:29 brightness lrwxrwxrwx 1 root root 0 gen 9 09:37 device -> ../../../13-0063 -rw-r--r-- 1 root root 4096 gen 9 09:37 enable -r--r--r-- 1 root root 4096 gen 9 09:37 max_brightness -rw-r--r-- 1 root root 4096 gen 9 09:37 onoff drwxr-xr-x 2 root root 0 gen 9 09:06 power -rw-r--r-- 1 root root 4096 gen 9 09:37 source lrwxrwxrwx 1 root root 0 gen 9 09:06 subsystem -> ../../../../../../class/leds -rw-r--r-- 1 root root 4096 gen 9 09:37 timeout -rw-r--r-- 1 root root 4096 gen 9 09:37 trigger -rw-r--r-- 1 root root 4096 gen 9 09:05 ueventphablet@ubuntu-phablet:~$ ls -l /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/flash1/ total 0 -rw-r--r-- 1 root root 4096 gen 9 09:29 brightness lrwxrwxrwx 1 root root 0 gen 9 09:39 device -> ../../../13-0063 -rw-r--r-- 1 root root 4096 gen 9 09:39 enable -r--r--r-- 1 root root 4096 gen 9 09:39 max_brightness -rw-r--r-- 1 root root 4096 gen 9 09:39 onoff drwxr-xr-x 2 root root 0 gen 9 09:06 power lrwxrwxrwx 1 root root 0 gen 9 09:06 subsystem -> ../../../../../../class/leds -rw-r--r-- 1 root root 4096 gen 9 09:39 trigger -rw-r--r-- 1 root root 4096 gen 9 09:05 ueventphablet@ubuntu-phablet:~$ ls -l /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/torch0/ total 0 -rw-r--r-- 1 root root 4096 gen 9 09:30 brightness --w--w---- 1 root root 4096 gen 9 09:40 chip_reg lrwxrwxrwx 1 root root 0 gen 9 09:40 device -> ../../../13-0063 -rw-r--r-- 1 root root 4096 gen 9 09:40 enable --w--w---- 1 root root 4096 gen 9 09:40 hwen -r--r--r-- 1 root root 4096 gen 9 09:40 max_brightness -rw-r--r-- 1 root root 4096 gen 9 09:40 onoff drwxr-xr-x 2 root root 0 gen 9 09:06 power -rw-r--r-- 1 root root 4096 gen 9 09:40 source lrwxrwxrwx 1 root root 0 gen 9 09:06 subsystem -> ../../../../../../class/leds -rw-r--r-- 1 root root 4096 gen 9 09:40 trigger -rw-r--r-- 1 root root 4096 gen 9 09:05 ueventphablet@ubuntu-phablet:~$ ls -l /sys/devices/gpioi2c1.15/i2c-13/13-0063/leds/torch1/ total 0 -rw-r--r-- 1 root root 4096 gen 9 09:30 brightness lrwxrwxrwx 1 root root 0 gen 9 09:40 device -> ../../../13-0063 -rw-r--r-- 1 root root 4096 gen 9 09:40 enable -r--r--r-- 1 root root 4096 gen 9 09:40 max_brightness -rw-r--r-- 1 root root 4096 gen 9 09:40 onoff drwxr-xr-x 2 root root 0 gen 9 09:06 power lrwxrwxrwx 1 root root 0 gen 9 09:06 subsystem -> ../../../../../../class/leds -rw-r--r-- 1 root root 4096 gen 9 09:40 trigger -rw-r--r-- 1 root root 4096 gen 9 09:05 uevent -
In regard to the dmesg log, may I ask you what's that for? Only to understand the purpose, generally speaking. I looked for /var/log directory and I found several archived dmesg files but a bit outdated I'd say. However, I'd copied the most up to date dmesg file and in the following link you can find the details: dmesg.log
Please, tell me if you need something else from me. Needless to say, I really appreciate what you are doing
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@matteo in this link they mention a problem with the led driver your phone has (I don't have one so I could be totally wrong). And this link mentions how you could get it to show something (if it works).
So do you get any results with
find /sys/bus/i2c -name select_engineor withfind /sys/bus/i2c -name lp5562 -
@matteo If the led went off with
sudo bash -c "echo 1 > /sys/...../brightness"then you are on to something. Try other values (64, 255).
Also check whatcat /sys/.../onoffsays orcat /sys/.../enable. -
@wdehoog Willem, I started looking around at the references you gave to me. According to an other post in this Forum, it seems the RGB leds are disabled on purpose; see here below the section of the kernel file
leds-lp5562.ccommented out for this reason:static struct lp55xx_led_config lp5562_led_config[] = { /*{ .name = "R", .chan_nr = 0, .led_current = 20, .max_current = 40, }, { .name = "G", .chan_nr = 1, .led_current = 20, .max_current = 40, }, { .name = "B", .chan_nr = 2, .led_current = 20, .max_current = 40, },*/ { .name = "m86_led", .chan_nr = 0, .led_current = 80, .max_current = 80, }, };I think this is the major culprit for not having any other colors but the white for the RGB led installed on the Meizu Pro5. My question is: how can I flash only this part of the kernel, prior modifying that code to see if it helps to solving that issue?
