Differences

This shows you the differences between two versions of the page.

--- en:c2_app_launch_via_gpio_on_android [2017/03/09 18:24]
odroid
+++ en:c2_app_launch_via_gpio_on_android [2017/05/24 17:10] (current)
codewalker
@@ Line 1: / Line 1: @@
-==== App launch via GPIO on Android ====
+==== Application launching with GPIO trigger on Android ====
-** You must install the Android release V2.9 or higher to launch app via GPIO \\**
+<WRAP center round important>
-** In that case you can skip step 1 ~ 5.\\ **
+** You must install the Android release V2.9(C2)/V4.5(XU4) or higher to launch app via GPIO. ** \\
-** Please check the revision of PCB. This page is based on the board revision 0.2. **
+** In that case you can skip step 1 ~ 7 for your easier life LOL** \\
-This page explains how to launch app via GPIO input. All of software stuff was applied after the Android V2.9.
+** If you installed higher version of the Android Marshmallow version v2.9, Please do just step 3 and 4, and skip to 7 ** \\
+** Please check the revision of PCB. This page is based on the board revision 0.2.(C2) **
-. Set the builtin GPIO polled driver.
+</WRAP>
+This page explains how to launch an app via GPIO input. \\ All of software stuff(Step 1 to 7) was included from Android image Ver2.9 to Ver3.4 and Marshmallow Ver2.4 released.\\
+\\
+**1. Enable the GPIO key driver as a built-in.**\\
 <code>
 ...
@@ Line 15: / Line 18: @@
 </code>
+**2. Add gpio key mapping to device tree blob.** \\
-. Add gpio key mapping to device tree blob. (path: arch/arm64/boot/dts/meson64_odroidc2.dts)
+\\
+** ODROID-C2 **\\
-[[en:c2_hardware&#expansion_connectors|GPIO Pin description]]
+(path: arch/arm64/boot/dts/meson64_odroidc2.dts) \\
+[[en:c2_hardware&#expansion_connectors|GPIO Pin description]] \\
 [[https://github.com/hardkernel/linux/commit/6c5f6929b5f351d54929b6ba3921db7d48115a4f|commit]]
 <code>
 gpio_keys_polled {
+   status = "disabled";
    compatible =
     "gpio-keys-polled";
@@ Line 52: / Line 56: @@
  };
 </code>
+\\
+** ODROID-XU3/XU4 **\\
+(path: arch/arm/boot/dts/exynos5422-odroidxu3.dts) \\
+[[en:xu3_hardware#expansion_connectors|GPIO Pin description]] \\
+[[en:xu4_shift_shield#gpio_map_for_wiringpi_library|Shift shield GPIO map]]\\
+[[https://github.com/hardkernel/linux/commit/d7bdd20604db04c462ba4ffe77168402da3afe90|commit1]]\\
+[[https://github.com/hardkernel/linux/commit/e8b0d4d2f9be82c711343ee391d576bf7b677c91|commit2]]
+<code>
+gpio_keys_polled {
+   status = "disabled";
+   compatible =
+    "gpio-keys-polled";
+   #address-cells = <1>;
+   #size-cells = <0>;
+   poll-interval = <100>;
+   autorepeat;
+   button@1 {
+    label = "GPIO Key F7";
+    linux,code = <65>;
+    gpios = <&gpx1 2 0xf>;
+   };
+   button@2 {
+    label = "GPIO Key F8";
+    linux,code = <66>;
+    gpios = <&gpx1 5 0xf>;
+   };
+   button@3 {
+    label = "GPIO Key F9";
+    linux,code = <67>;
+    gpios = <&gpx1 6 0xf>;
+   };
+   button@4 {
+    label = "GPIO Key F10";
+    linux,code = <68>;
+    gpios = <&gpx1 3 0xf>;
+   };
+ };
+</code>
-. Build the kernel source. and flash the kernel image to the board.
+**3. Enable GPIO Key map.** \\
+<code>
+gpio_keys_polled {
+   status = "okay";
+   .
+   .
+};
+</code>
+**4. Build the kernel source. and flash the kernel image to the board.(C2)** \\
 <code>
 $ cd kernel
@@ Line 68: / Line 118: @@
 </code>
+**5. Add key event keycode to system/usr/keylayout/Vendor_0001_Product_0001.kl file.** \\ You can find keycode table from [[http://www.comptechdoc.org/os/linux/howlinuxworks/linux_hlkeycodes.html|reference]] \\
-. Add key event keycode to system/usr/keylayout/Vendor_0001_Product_0001.kl file. You can find keycode table from [[http://www.comptechdoc.org/os/linux/howlinuxworks/linux_hlkeycodes.html|reference]]
+** ODROID-C2 **\\
+[[https://github.com/codewalkerster/android_device_hardkernel_odroidc2/commit/7b49c29162c884491df262a3ec3d96f08942e231|commit]] \\
-[[https://github.com/codewalkerster/android_device_hardkernel_odroidc2/commit/7b49c29162c884491df262a3ec3d96f08942e231|commit]]
+** ODROID-XU3/XU4 **\\
+[[https://github.com/codewalkerster/android_device_hardkernel_odroidxu3/commit/58c5a25a219f3f4e770a52fefd50b2fd05cff510|commit]] \\
+\\
 <code>
 ...
@@ Line 81: / Line 133: @@
 </code>
-. Apply the patch that intercept key event to frameworks/base & ODROID Utility App.
+**6. Apply the patch that intercept key event to frameworks/base & ODROID Utility App.** \\
+** ODROID-C2 **\\
-[[https://github.com/codewalkerster/android_frameworks_base/commit/6fe6d88e6715e16d891b046a41f7d7fa2588d48c|frameworks/base commit]]
+[[https://github.com/codewalkerster/android_frameworks_base/commit/6fe6d88e6715e16d891b046a41f7d7fa2588d48c|frameworks/base commit]] \\
+[[https://github.com/codewalkerster/android_packages_apps_Utility/commit/87f87154c09eee8eb48106512346744da9b37c3b|ODROID Utility commit]]\\
-[[https://github.com/codewalkerster/android_packages_apps_Utility/commit/87f87154c09eee8eb48106512346744da9b37c3b|ODROID Utility commit]]
+** ODROID-XU3/XU4 **\\
+[[https://github.com/codewalkerster/android_frameworks_base/commit/c8f8974e657f9cc4471a3825fed8bd15718f556d|frameworks/base commit]] \\
-. Build the Android image and flash it.
+[[https://github.com/codewalkerster/android_packages_apps_Utility/commit/f33e6124571df1e201167589ecccb3b218bc3c0f|ODROID Utility commit]]\\
-[[en:c2_building_android#build|build method]]
+**7. Build the Android image and flash it.** \\
+[[en:c2_building_android#build|ODROID-C2 build method]]
+[[en:xu3_building_android#installation|ODROID-XU3/4 install method]]
 <code>
 $ cd <PATH_TO_ANDROID_ROOT>
@@ Line 96: / Line 150: @@
 $ fastboot reboot
 </code>
+\\
+\\
+**8. Connect a few buttons to the GPIOs with 10KOhm pull-up resistors. ** **Click images to enlarge it.** \\
+** ODROID-C2 **\\
+{{:en:img_20170104_170948.jpg?direct&500|}}
-. Create GPIO input circuit. **Click images to enlarge it.**
+{{:en:gpio_shortcut_bb.png?direct&300|}}
-{{:en:img_20170104_170948.jpg?direct&200|}}
+{{:en:gpio_shortcut_schem.png?direct&300|}}
-{{:en:gpio_shortcut_bb.png?direct&200|}}
+** ODROID-XU3/XU4 **\\
-{{:en:gpio_shortcut_schem.png?direct&200|}}
+{{:en:gpio_shortcut_xu4_bb.png?direct&300|}}
+{{:en:gpio_shortcut_xu4_schem.png?direct&300|}}
-. Set the launch app by using ODROID Utility app.
+**9. Set the launch app by using ODROID Utility app.**
-{{:en:screen.png?direct&200|}}
+{{:en:screen.png?direct&500|}}
-[[https://www.youtube.com/watch?v=tU6-Fz6twAM|play video]]
+{{youtube>tU6-Fz6twAM}}