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--- en:c2_gpio_key_wakeup [2017/07/24 18:01]
joy.cho [Setting boot.ini]
+++ en:c2_gpio_key_wakeup [2017/07/24 18:07] (current)
joy.cho [2. Available Keys]
@@ Line 1: / Line 1: @@
 ====== Power Off and Wake Up using GPIO Key Button ======
 This section describes how to set up GPIO key button for power off and wake up purpose.\\
-  - [[odroid-c2:application_note:gpio:gpio_key_wakeup#hardware_set-up|Hardware Set-up]]
+  - [[en:c2_gpio_key_wakeup&#hardware_set-up|Hardware Set-up]]
-  - [[odroid-c2:application_note:gpio:gpio_key_wakeup#available_keys|Available Keys]]
+  - [[en:c2_gpio_key_wakeup&#available_keys|Available Keys]]
-  - [[odroid-c2:application_note:gpio:gpio_key_wakeup#sw_set-up_1_-_ubuntu|SW Set-up (1) Ubuntu]]
+  - [[en:c2_gpio_key_wakeup&#sw_set-up_1_-_ubuntu|SW Set-up (1) Ubuntu]]
-  - [[odroid-c2:application_note:gpio:gpio_key_wakeup#sw_set-up_2_-_android|SW Set-up (2) Android]]
+  - [[en:c2_gpio_key_wakeup&#sw_set-up_2_-_android|SW Set-up (2) Android]]
-  - [[odroid-c2:application_note:gpio:gpio_key_wakeup#troubleshooting|Troubleshooting]]
+  - [[en:c2_gpio_key_wakeup&#troubleshooting|Troubleshooting]]
 The brief set-up flow is as following.\\
@@ Line 67: / Line 67: @@
 You can find the detailed information about 40-pin and 7-pin connectors in the following link.\\
-[[odroid-c2:hardware:expansion_connectors|Expansion Connectors]]\\
+[[en:c2_hardware&#expansion_connectors|Expansion Connectors]]\\
-==== Setting Power Button Action for Power Off ====
+==== 3. SW Set-up (1) - Ubuntu ====
+<WRAP center round important>
+  * Ubuntu : The release version should be 3.14.79-107 (Feb 26, 2017) or higher.
+</WRAP>
-=== Ubuntu ===
+=== (1) Setting boot.ini ===
-When you turn the board off using power button, you need to change power key action pattern.\\
+You can assign GPIO number with env **gpiopower** in boot.ini.
+<code ini target>
+## gpio power key : J2 (2x20) Pin#29 , GPIOX.BIT0
+setenv gpiopower "228"
+...
+...
+## Add gpiopower like "setenv bootargs ${bootargs} gpiopower=${gpiopower}"
+setenv bootargs "root=UUID=e139ce78-9841-40fe-8823-96a304a09859 rootwait ro ${condev} no_console_suspend hdmimode=${m} ${cmode} m_bpp=${m_bpp} vout=${vout} fsck.repair=yes net.ifnames=0 elevator=noop disablehpd=${hpd} max_freq=${max_freq} maxcpus=${maxcpus} monitor_onoff=${monitor_onoff} disableuhs=${disableuhs} mmc_removable=${mmc_removable} usbmulticam=${usbmulticam} ${hid_quirks} gpiopower=${gpiopower}"
+</code>
+=== (2) Setting Power Button Action for Power Off ===
+When you turn the board off using power button, you need to change the power key action pattern.\\
 - Open Power Management Preferences : [System] -> [Preferences] -> [Hardware] -> [Power Management] \\
@@ Line 79: / Line 98: @@
 {{:en:gpio_wakeup_1.png?400}}
-=== Android ===
+=== (3) Wake up Action ===
-In case of Android, one short power key event is used for sleep and with long key event, you can handle options of power off/reboot.\\
+To wake-up after power off, long-pressing over 2 seconds is needed.
-With Android Marshmallow v2.4 or higher version, it's available to enter power off sequence using **long-pressing (5 sec)**.
-==== Available Key Numbers  ====
+==== 4. SW Set-up (2) - Android  ====
+<WRAP center round important>
+  * Android : You have to modify the dts file in Android Marshmallow (v2.4) and higher version to using this functionality.
+</WRAP>
+=== (1) Modifying and Flashing Kernel dts ===
+In case of Android, you have to modify the dts file to activate gpio key functionality.\\
+[[https://github.com/hardkernel/linux/blob/odroidc2-3.14.y-android/arch/arm64/boot/dts/meson64_odroidc2.dts|C2 Android DTS]]\\
+<kernel_path>/arch/arm64/boot/dts/meson64_odroidc2.dts
+<code>
+...
+gpio_keypad{
+    .
+    status = "okay";
+    .
+};
+...
+</code>
+After compiling the dts file, you can flash the dtb file to the board.
+In kernel:
+<code bash target>
+$ make odroidc2_defconfig
+$ make dtbs
+$ fastboot flash dtb arch/arm64/boot/dts/meson64_odroidc2.dtb
+$ fastboot reboot
+</code>
+You have to flash dtbs file when board it is in u-boot fastboot mode.
+In board:
+<code bash target>
+$ reboot fastboot
+</code>
+=== (2) Setting boot.ini ===
+In Android boot.ini, you can find a "gpiopower" example.
+Uncomment "gpiopower" part and modify the number with the number you want to use.
+<code ini target>
+## gpio power key : J2 (2x20) Pin#29 , GPIOX.BIT0
+setenv gpiopower "228"
+</code>
-**1. J2 - 2x20 pins**
+=== (3) Setting Power Button Action for Power Off ===
-^ Pin Number ^ Net Name ^ GPIO Number ^ Active Level ^ Pin Number ^ Net Name ^ GPIO Number ^ Active Level ^
+In Android, you don't need to set any menu for power button actions but it's already defined as following.\\
-|  1  |3.3V Power|  | |  2  |5.0V Power| | |
-|  3  |I2CA_SDA|N/A| |  4  |5.0V Power| | |
-|  5  |I2CA_SCL|N/A| |  6  |Ground| | |
-|  7  |GPIOX.BIT21|GPIO#249| High -> Low |  8  |TXD1|N/A| |
-|  9  |Ground| | |  10  |RXD1|N/A| |
-|  11  |GPIOX.BIT19|GPIO#247|High -> Low|  12  |GPIOX.BIT10|GPIO#238|High -> Low|
-|  13  |GPIOX.BIT11|GPIO#239|High -> Low|  14  |Ground| | |
-|  15  |GPIOX.BIT9|GPIO#237|High -> Low|  16  |GPIOX.BIT8|GPIO#236|High -> Low|
-|  17  |3.3V Power| | |  18  |GPIOX.BIT5|GPIO#233|High -> Low|
-|  19  |GPIOX.BIT7|GPIO#235|High -> Low|  20  |Ground| | |
-|  21  |GPIOX.BIT4|GPIO#232|High -> Low|  22  |GPIOX.BIT3|GPIO#231|High -> Low|
-|  23  |GPIOX.BIT2|GPIO#230|High -> Low|  24  |GPIOX.BIT1|GPIO#229|High -> Low|
-|  25  |Ground| | |  26  |GPIOY.BIT14|GPIO#225|Low -> High|
-|  27  |I2CB_SDA|N/A| |  28  |I2CB_SCL|N/A| |
-|  29  |GPIOX.BIT0|GPIO#228|High -> Low|  30  |Ground| | |
-|  31  |GPIOY.BIT8|GPIO#219|High -> Low|  32  |GPIOY.BIT13|GPIO#224|High -> Low|
-|  33  |GPIOX.BIT6|GPIO#234|Low -> High|  34  |Ground| | |
-|  35  |GPIOY.BIT3|GPIO#214|High -> Low|  36  |GPIOY.BIT7|GPIO#218|High -> Low|
-|  37  |ADC.AIN1|N/A| |  38  |1.8V Power|N/A| |
-|  39  |Ground| | |  40  |ADC.AIN0|N/A| |
+One short power key event is used for sleep, and with long key event, you can handle options of power off/reboot.\\
+With Android Marshmallow v2.4 or higher version, it's available to enter power off using **long-pressing (5 sec)**.
-**2. J7 - 1x7 pins**
+=== (4) Wake up Action ===
-^ Pin Number ^ Net Name ^ GPIO Number ^ Active Level ^
+And to wake-up after power off, long-pressing over 2 seconds is needed.
-|  1  |Ground|  | |
-|  2  |GPIOAO.BIT6|GPIO#128|High -> Low|
-|  3  |P5V0|5.0V Power| |
-|  4  |GPIOAO.BIT8|GPIO#130|High -> Low|
-|  5  |GPIOAO.BIT10|GPIO#132|High -> Low|
-|  6  |GPIOAO.BIT9|GPIO#131|High -> Low|
-|  7  |GPIOAO.BIT11|GPIO#133|High -> Low|
-**3. SW1**
+==== 5. Troubleshooting  ====
+https://forum.odroid.com/viewtopic.php?f=137&t=27602#p195995 \\
-{{:en:gpio_wakeup_3.png?400}} \\
+https://forum.odroid.com/viewtopic.php?f=136&t=27636
-^ Pin Number ^ Net Name ^ GPIO Number ^ Active Level ^
-|  1  |NC|N/A  | |
-|  2  |GPIOY.BIT5|GPIO#216|High -> Low|
-|  3  |GND|Ground| |