i.MX Processors中的主题 Re: Power button in Android

Power button in Android

hajimohammed — Wed, 19 Oct 2016 11:58:26 GMT

Hi,

We are currently working on IMX6 custom board & our OS is android lollipop with 3.10.53 linux kernel. When we press the power button, we have to get Reboot / Shutdown power status popup but we are not able to configure our gpio to perform this power button functionality.

Please provide a solution to fix it

Regards,

Haji

Re: Power button in Android

Bio_TICFSL — Wed, 19 Oct 2016 16:17:57 GMT

Hi haji,

You need to do a key mapping to the AOSP power key

PowerManager | Android Developers

Key layout files are searched for in the following order:

/system/usr/keylayout/Vendor_XXXX_Product_XXXX_Version_XXXX.kl
/system/usr/keylayout/Vendor_XXXX_Product_XXXX.kl
/system/usr/keylayout/DEVICE_NAME.kl
/data/system/devices/keylayout/Vendor_XXXX_Product_XXXX_Version_XXXX.kl
/data/system/devices/keylayout/Vendor_XXXX_Product_XXXX.kl
/data/system/devices/keylayout/DEVICE_NAME.kl
/system/usr/keylayout/Generic.kl/

Regards

Re: Power button in Android

aravinthkumarja — Thu, 20 Oct 2016 05:17:30 GMT

Hi Haji,

In dts under gpio-keys section add the below line.

power {
label = "Power Button";
gpios = <&gpio3 29 1>; //Here you need to give your gpio number
gpio-key,wakeup;
linux,code = <KEY_POWER>;
};

Hope above information is helpful for you!

Regards,

Aravinth

Re: Power button in Android

hajimohammed — Thu, 20 Oct 2016 06:17:17 GMT

Hi,

When we using below code,we are able to get only power off popup (working). If i want to reboot/restart popup what are the changes i need to do

#define POWER_OFF IMX_GPIO_NR(2, 4)

static struct gpio_keys_button buttons[] = {
        {
                .gpio           = POWER_OFF,
                .code           = KEY_POWER,
                .desc           = "Power Off Button",
                .type           = EV_KEY,
                .active_low     = 0,
                .wakeup         = 1,
        }
};

static struct gpio_keys_platform_data button_data = {
.buttons = buttons,
.nbuttons = ARRAY_SIZE(buttons),
};

static struct platform_device button_device = {
        .name           = "gpio-keys",
        .id             = -1,
        .num_resources = 0,
        .dev            = {
                .platform_data = &button_data,
        }
};

Re: Power button in Android

aravinthkumarja — Thu, 20 Oct 2016 09:10:00 GMT

Hi Haji,

Do the below changes,

.code = KEY_SCREENLOCK,

Regards,

Aravinth

Re: Power button in Android

hajimohammed — Thu, 20 Oct 2016 10:49:05 GMT

Hi aravinthkumar,

With below code changes also we are getting only poweroff popup. but we need reboot/restart popup

.code = KEY_SCREENLOCK,

Re: Power button in Android

aravinthkumarja — Thu, 20 Oct 2016 11:06:53 GMT

Hi Haji,

That is application layer dependency. Ask them to check, If you get long press event from "KEY_SCREENLOCK" , popup the expected function(Reboot, poweroff, Screenshot, etc).

Hope above information is helpful for you!

Regards,

Aravinth

Re: Power button in Android

deepanrajanbara — Tue, 27 Dec 2016 04:55:31 GMT

hi aravinthkumar jayaprakasam

Is there any way to configure the same power button click event to show reboot option also ?

Thank you,

Deepanraj.A

Re: Power button in Android

aravinthkumarja — Tue, 27 Dec 2016 09:05:06 GMT

Hi Deepanraj,

Yes. we can do it. It's just android pop-up.

Regards,

Aravinth

Re: Power button in Android

deepanrajanbara — Tue, 27 Dec 2016 09:26:41 GMT

How to configure that pop up do you know ?

Thank you,

Deepanraj.A

Re: Power button in Android

aravinthkumarja — Sat, 04 Feb 2017 04:52:19 GMT

Hi Deepanraj,

Sorry for the delay. Android App developer know about it.

Regards,

Aravinth

Re: Power button in Android

vinodmaverickr0 — Sat, 04 Feb 2017 07:34:22 GMT

Hi Haji,

For restart you can try by modifying the below code.

.code = KEY_POWER,

.code = KEY_RESTART, //try this

Thanks,

Vinod