0
John Henry

How to choose the right pin to wakeup orange pi3?

Recommended Posts

(edited)

Hi, Just as my last post. I want to know if it is possible to  wakeup opi3 after I switch its state to "mem" or "disk" using gpio on CON12.

 

I have doing some reasch but I don't know if it is right: PL/PM port can be used as wakeup source. PF/G/H/L/M port support interrupt event. PC/D didn't support interrupt.

But when I try to write a device tree file, but it just report some error with error code -22.

 

My device three is like this:

/dts-v1/;
/plugin/;

/ {
	compatible = "allwinner,sun50i-h6";
/*
	 * This fragment is needed only for the internal pull-up activation,
	 * external pull-up resistor is highly recommended if using long wires
	 */
	fragment@0 {
		target = <&r_pio>;
		__overlay__ {
			gpio_key_wakeup: gpio_key_wakeup {
				pins = "PL8";
				function = "gpio_in";
				bias-pull-up;
			};
		};
	};

	fragment@1 {
		target-path = "/";
		__overlay__ {
			gpio-keys-user {
				/*
				 * Use "gpio-keys" for EINT capable pins, "gpio-keys-polled" for other pins
				 * add "poll-interval" property if using "gpio-keys-polled"
				 */
				compatible = "gpio-keys";
           autorepeat;
				pinctrl-names = "default";
				pinctrl-0 = <&gpio_key_wakeup>;

				key_wakeup{
					label = "GPIO KEY_WAKEUP";
					linux,code = <143>; /* KEY_WAKEUP, see include/uapi/linux/input-event-codes.h */
					gpios = <&r_pio 0 8 1>; /* PL8 GPIO_ACTIVE_LOW */
				};
			};
		};
	};
};

   I am still a newbie and I don't know  enough thing about how to write the right DTS file. Please give me some help. Thanks

 

 

(I have tested KEY_POWER it seems everything OK. I don't know what is the error part about KEY_WAKEUP)

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`

Finally, I fulfill it now.

dts is like this:

one pin for sleep:

/dts-v1/;
/plugin/;

/ {
	compatible = "allwinner,sun50i-h6";
	/*
	 * This fragment is needed only for the internal pull-up activation,
	 * external pull-up resistor is highly recommended if using long wires
	 */
	fragment@0 {
		target = <&pio>;
		__overlay__ {
			gpio_but_sleep: gpio_but_sleep {
				pins = "PH3";
				function = "gpio_in";
				bias-pull-up;
			};
		};
	};

	fragment@1 {
		target-path = "/";
		__overlay__ {
			gpio-keys-user {
				/*
				 * Use "gpio-keys" for EINT capable pins, "gpio-keys-polled" for other pins
				 * add "poll-interval" property if using "gpio-keys-polled"
				 */
				compatible = "gpio-keys";
				autorepeat;
				pinctrl-names = "default";
				pinctrl-0 = <&gpio_but_sleep>;

				sleep_button {
					label = "KEY_SLEEP";
					linux,code = <142>; /* KEY_SLEEP, see include/uapi/linux/input-event-codes.h */
					linux,input-type = <1>;     // EV_KEY
					gpios = <&pio 7 3 1>; /* PD15 GPIO_ACTIVE_LOW */ 
					gpio-key;
				};
			};
		};
	};
};

one pin for wakeup:

/dts-v1/;
/plugin/;

/ {
	compatible = "allwinner,sun8i-h3";

	fragment@0 {
		
		target = <&pio>;
		__overlay__ {
			poweroff_pins:poweroff_pins {
        		allwinner,pins = "PA13";
        		allwinner,function = "gpio_out";

			};
		};
	};

	fragment@1 {
	
		target-path = "/";
        	__overlay__ {
            		poweroff: poweroff {
                	compatible = "gpio-poweroff";
                	gpios = <&pio 0 13 1>;
 			};
    		};
	};
};

 

But some weird things happend: after I wakeup again. I can connect to opi3 via debug port(uart0). But can not connect it from ssh again. Even after I setup a new  static ip for it.

And when I test "who", I find it still connect with the old ssh. But when I try to ping gatway "ping 192.168.1.1":

it show: From 192.168.1.108 icmp_seq=1 Destination Host Unreachable

 It is so wried.

Edited by John Henry

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
0