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Overview The purpose of this document is to describe how to enable 3G modem in i.MX sabresx board for Android software. Hardware Changes Unlike other boards of I.mx series, in sabresx board 3G modem doesn't share to use PCIE slot any longer. It is not connected with PCIE slot by default. So if you still want to use 3G modem like in sabresd board. You need to do a tiny hardware rework. Like the below, R177 and R178 is DNP. Just add a zero resistor here. Software patches After you have do hardware rework above, then you should git am the attached patch to add software support which will add the dts config of 3G power. In our official release version, we don't include this patch.

Hi All, The new Android JB4.3_1.1.0-GA release is now available on www.freescale.com · Files available Name Description IMX6_JB43_110_ANDROID_DOCS i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Android jb4.3_1.1.0 BSP Documentation. Includes Release Notes, User's Guide, QSG and FAQ Sheet. IMX6_JB43_110_ANDROID_SOURCE_BSP i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Android jb4.3_1.1.0 BSP, Documentation and Source Code for BSP and Codecs. IMX6_JB43_110_ANDROID_DEMO_BSP i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Android jb4.3_1.1.0 BSP Binary Demo Files IMX6_JB43_110_AACP_CODEC_CODA AAC Plus Codec for i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Android jb4.3_1.1.0 · Target HW boards o i.MX6DL SABRE SD board o i.MX6Q SABRE SD board o i.MX6DQ SABRE AI board o i.MX6DL SABRE AI board o i.MX6SL EVK board · Release Description i.MX Android jb4.3_1.1.0 release includes all necessary codes, documents and tools to assist users in building and running Android 4.3 on the i.MX 6Quad, i.MX 6DualLite and i.MX6SoloLite hardware board from the scratch. The prebuilt images are also included for a quick trial on Freescale i.MX 6Quad and i.MX 6DualLite SABRE-SD Board and Platform, i.MX 6Quad and i.MX 6DualLite SABRE-AI Board and Platforms and i.MX6SoloLite EVK Board and Platforms. This release includes all Freescale porting and enhancements based on Android open source code. Most of deliveries in this release are provided in source code with the exception of some proprietary modules/libraries from third parties. · What's in this release Android Source Code Patch All Freescale i.MX specific patches (apply to Google Android repo) to enable Android on i.MX based boards. For example Hardware Abstraction Layer implementation, hardware codec acceleration, etc. Packed in android_jb4.3_1.1.0-ga_source.tar.gz Documents The following documents are included in android_jb4.3_1.1.0-ga_docs.tar.gz: ● i.MX Android jb4.3_1.1.0-ga Quick Start: A manual explains how to run android on i.MX board by using prebuilt images. ● i.MX Android jb4.3_1.1.0-ga User Guide: A detailed manual for this release package. ● i.MX Android jb4.3_1.1.0-ga FAQ: A document lists “Frequently Asked Questions”. ● i.MX Android Codec Release Notes: A document to describes the Freescale Codec Package ● i.MX Android Wi-FI Display Sink API Introduction A document to describes how to use i.MX Android Wi-Fi Display Sink API ● i.MX6 G2D API User Guide document to introduce how to use i.MX6 G2D API for 2D BLT usage ● i.MX Android jb4.3_1.1.0-ga Release Note A document to introduce the key updates and known issues in this release. Tools Tools in android_jb4.3_1.1.0-ga_tools.tar.gz ● MFGTool. Manufacturing tools for i.MX platform ● USB tethering windows .inf driver configure file.tool/tetherxp.inf Prebuilt Images You can test Android on i.MX with prebuilt image on i.MX board before building any code. ● android_jb4.3_1.1.0-ga_image_6qsabresd.tar.gz: Prebuilt images for the SABRE-SD board. ● android_jb4.3_1.1.0-ga_image_6qsabreauto.tar.gz: Prebuilt images for the SABRE-AI board. ● android_jb4.3_1.1.0-ga_image_6slevk.tar.gz: Prebuilt images for the 6SL SABRE-AI board. All prebuilt images are in another package. See "i.MX Android jb4.3_1.1.0-ga Quick Start" and "i.MX Android jb4.3_1.1.0-ga User Guide" to understand which image should be used in which case. · Known issues For known issues and limitations please consult the release notes

To build Android version earlier than Lollipop from source code, you need the Sun's 1.6 SDK to be installed for ubuntu as the link Initializing a Build Environment | Android Developers. You may still cannot get the Sun's JDK with below instruction: $ sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner" $ sudo apt-get update $ sudo apt-get install sun-java6-jdk There are below options to help install the Sun's JDK if you cannot find a valid source through apt-get commands: $ wget --no-cookies --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F" http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-x64.bin $ chmod u+x jdk-6u45-linux-x64.bin $ ./jdk-6u45-linux-x64.bin $ sudo mv jdk1.6.0_45 /opt $ sudo update-alternatives --install /usr/bin/java java /opt/java/64/jdk1.6.0_45/bin/java 1 $ sudo update-alternatives --install /usr/bin/javac javac /opt/java/64/jdk1.6.0_45/bin/javac 1 $ sudo update-alternatives --install /usr/bin/jar jar /opt/java/64/jdk1.6.0_45/bin/jar 1 # if you have already install some other version of JDK, please export the JAVA_HOME env before your android build every time $ export JAVA_HOME=/opt/jdk1.6.0_45/ #or you can directly link the java binary to the sdk version you need as below: sudo ln -s /opt/java/64/jdk1.6.0_45/bin/jar /bin/jar sudo ln -s/opt/java/64/jdk1.6.0_45/java /bin/java sudo ln -s/opt/java/64/jdk1.6.0_45/javac /bin/javac sudo ln -s/opt/java/64/jdk1.6.0_45/javah /bin/javah sudo ln -s/opt/java/64/jdk1.6.0_45/javadoc /bin/javadoc sudo ln -s/opt/java/64/jdk1.6.0_45/javaws /bin/javaws To built the Android version Lollipop and Marshmallow from source code, you need the OpenJDK 7 to be installed for ubuntu as the link Initializing a Build Environment | Android Developers. $ sudo apt-get update $ sudo apt-get install openjdk-7-jdk You may have both openjdk7 and SUN JDK 1.6 intalled in your ubuntu to build different Android version. If you have default java SDK to be Sun's JDK 1.6, you can just use below commands to make android build system use the openjdk7 for Lollipop built $ export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/ $ cd myandroid $ . ./build/envsetup.sh //be sure to resetup the envsetup, and pick the platform to be built $ lunch

by b47504 Overview This document is intended to introduce debug tips about i.MX power management based on i.MX Android software. The following topics are involved in this document: How to debug suspend/resume issues How to do power optimization How to debug suspend/resume issues General method: Capture more PM debug message Enable PM debug system to get more info about PM in kernel and debug interface Power management options ---> [*] Power Management Debug Support [*] Extra PM attributes in sysfs for low-level debugging/testing Enable wakelock debug_mask to capture more message about wakelock root@android:/ # echo 15 > /sys/module/wakelock/parameters/debug_mask root@android:/ # echo 15 > /sys/module/userwakelock/parameters/debug_mask Enable earlysuspend debug_mask to capture more message about early suspend and late resume. root@sabresd_6dq:/ # echo 15 > /sys/module/earlysuspend/parameters/debug_mask Add no_console_suspend=1 to the boot option for kernel This makes the system print more useful info before entry in suspend Eg: --- a/sabresd_6dq/BoardConfig.mk +++ b/sabresd_6dq/BoardConfig.mk -BOARD_KERNEL_CMDLINE := console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale +BOARD_KERNEL_CMDLINE := console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale no_console_suspend=1 System cannot enter suspend mode Check below setting items have been disabled: § Whether the usb cable has been removed(usb gadget will hold a wake lock) § Setting->Display->Sleep, check whether the inactivity timeout period setting is longer than your expected time. § Setting->System->Developer options->stay awake(stay awake not be set), check whether the option is disabled Check if all wake locks have been released(You can see which wake lock is held, and then debug into the specific module): root@sabresd_6dq:/ # cat /sys/power/wake_lock System could not resume from suspend/System crash when resume or suspend Check the PMIC_STBY_REQ signal. System use PMIC_STBY_REQ signal to notify power management IC to change voltage from standby voltage to functional voltage and vice versa. In general, pmic_stby_req pin is connected to pmic standby pin. So measure the pin to check whether the de-assert signal is triggered. If the signal is not triggered, we may consider whether wake-up sources are correctly setup. If the signal is triggered, we may double-check whether the pmic supply power normally. And not limited to the two points, we should also double-check everything we doubt according to the system log and hardware measured waves. Using Trace32 or ICE to locate the problem. Please view trace32 website to get more details. Track from mx6_suspend_enter in arch/arm/mach-mx6 . Track "state" value and try to map to different the low power mode via function mxc_cpu_lp_set. Check "mx6_suspend.S" which conduct the detailed operations in suspend: "MEM" is mapped to "dormant" mode. So goto "dormant" symbol and try to dump different operations to narrow down suspend/resume failure If this failure maybe related to DDR operation, try to dummy DDR IO relative low power operation. Using ram console to dump kernel log after reboot. Ram console will keep one kernel log copy into one certain memory space. You can use the following command to check last time kernel log, if memory power was not cut off during the reboot process. Eg(if it is the first time boot, you cannot find the /proc/last_kmsg file): root@sabresd_6dq:/ # cat /proc/last_kmsg Kernel resume back from suspend but android not This is usually introduced by the wrong key layout file Use getevent/sendevent tool to get power key scan code #getevent Correct the Keylayout file system/usr/keylayout/****.kl Correct the scandcode with your power key report value to Match the POWE key Suspend/Resume consume too much time: We can print the specific module name and time consume details, if the module's suspend/resume time consume more than the threshold parameter by read/write /sys/power/device_suspend_time_threshold file. By default, the parameter is setup to 0, via disabled the function. We can enable it by the following command: Eg: root@android:/ # echo 10 > /sys/power/device_suspend_time_threshold This command means that if the module's suspend/resume time consume more than 10 us, the system will print the module's detail out. If you want to know the more details how to implement it on kernel, please check kernel/power/main.c Notes: Can use the shell command to enter different system level low power modes for debug (For more details: you can check Linux_6DQ_RM.pdf): #echo mem > /sys/power/state #echo standby > /sys/power/state How to do power optimization Runtime Mode Check whether CPUFreq and Bus_freq scale are enabled root@android:/ # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor root@android:/ # cat /sys/devices/platform/imx_busfreq.0/enable More details about this, please refer to "Documentation/cpu-freq/ governors.txt” . Check whether the system bus is working on your expected frequency. For MX6Q: root@android:/ # cat /sys/kernel/debug/clock/osc_clk/pll2_528_bus_main_clk/periph_clk/mmdc_ch0_axi_clk/rate Check CPU Loading and Interrupt(cat /proc/interrupts) root@android:/ # cat /proc/interrupts Through this command you can check whether some module will trigger interrupt frequently. And consider that whether we have some chances to reduce the interrupt count. Check clock tree carefully to see which clocks are not gated off but no any modules need them. root@android:/ # powerdebug -d -c Reduce GPU frequency.GPU also offered interface to modify the frequency. According to your own product, you can reduce the gpu frequency. Default gpu3DMaxClock is set to 64 in init.rc file, we can tuning a suitable value by ourselves. diff --git a/imx6/etc/init.rc b/imx6/etc/init.rc index 8c420b5..eb11ffe 100755 --- a/imx6/etc/init.rc +++ b/imx6/etc/init.rc @@ -397,6 +397,9 @@ on boot # Set GPU 3D minimum clock to 3/64 write /sys/module/galcore/parameters/gpu3DMinClock 3 +# Set GPU 3D maximum clock to 64/64 + write /sys/module/galcore/parameters/gpu3DMaxClock 64 + Suspend Mode Check whether all devices enter suspend mode or low power mode: Add debug message into devices drivers to check whether all devices driver suspend interface are called Use oscilloscope to measure the related signal (depend on specific device datasheet and custom hw design) to check whether every device enter low power mode Remove devices from the board(or rmmod the device driver) , and do hardware rework to exclude some hardware module if needed. Then we can figure out which module introduced the high consumption, and debug into the specific module. Add debug message in device drivers which may lead high power consumption, catch the waveform from these modules which may impact the high power consumption Check whether DDR enter in self-refresh mode(Please check the DDR datasheet to figure out which pin indicate self-refresh state, and check it with oscilloscope) Config GPIO PADs as output zero or input mode (depending to HW design) Cut off LDOs/DCDCs which no modules need (depending to HW design) Check all PLLs will cut off, just 32KHZ sleep clock living

This patch made the display no interrupt from uboot to kernel to Android. The IPU and related hardware display interface will only be initialized once in Uboot, the kernel code will skip the IPU initialization. 1. Description 1) Support HDMI, LVDS and LCD output in UBoot. 2) Support UBoot logo keep from uboot to kernel to Android. 3) For HDMI, both 720P and 1080P mode were supported. 4) For LVDS, 1024x768 and 1080P dual channel panels were supported. 5) The logo file is a 32 bpp bmp file. 2. File List -- kernel_imx\0001-Keep-uboot-logo-for-Android-boot-supports-HDMI-LCD-a.patch -- kernel_imx\0002-Bug-fix-for-uboot-logo-keep-patch.patch Kernel patch to support the logo keep feature. -- uboot-imx\0001-Enable-uboot-logo-for-HDMI-LCD-and-LVDS.patch Uboot patch to support the logo display. -- logo.bmp Example 32bpp logo file. -- readme.txt this file, please refer to it before use the patches 3. Requirement - iMX6 SabreSD board. - Android JB4.2.2_1.1.0-GA UBoot and kernel. 4. How to use -- Copy the two patch files to Android kernel_imx and uboot-imx folder and apply them. $ cd ~/myandroid/kernel_imx/ $ git apply ./0001-Keep-uboot-logo-for-Android-boot-supports-HDMI-LCD-a.patch $ cd ~/myandroid/bootable/bootloader/uboot-imx/ $ git apply ./0001-Enable-uboot-logo-for-HDMI-LCD-and-LVDS.patch $ git apply ./0002-Bug-fix-for-uboot-logo-keep-patch.patch -- Build the new uboot image: $ cd ~/myandroid/bootable/bootloader/uboot-imx $ export CROSS_COMPILE=~/myandroid/prebuilt/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi- $ export ARCH=arm $ make mx6q_sabresd_android_config $ make -- Before build new UBoot image, the display type can be selected from file uboot-imx\include\configs\mx6q_sabresd.h // Select one of the output mode #define IPU_OUTPUT_MODE_HDMI //#define IPU_OUTPUT_MODE_LVDS //#define IPU_OUTPUT_MODE_LCD -- Build the new kernel image: $ cd ~/myandroid/kernel_imx $ export CROSS_COMPILE=~/myandroid/prebuilt/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi- $ export ARCH=arm $ make imx6_android_defconfig $ make uImage -- Before "make uImage", make menuconfig can be used to select the display type. System Type ---> Freescale MXC Implementations ---> MX6 clk setting for smooth UI transtion from bootloader to kernel ---> Select Display Interface ( ) Smooth UI transtion on LCD, IPU1, DI0 ( ) Smooth UI transtion on LVDS, IPU1, DI1 (X) Smooth UI transtion on HDMI, IPU2, DI0 -- Uboot parameters for video mode 1080P HDMI: "video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 fb0base=0x27b00000 fbmem=28M hdmi_audio_clk=148500000" 720P HDMI: "video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 fb0base=0x27b00000 fbmem=28M hdmi_audio_clk=74250000" 1024x768 LVDS: "video=mxcfb0:dev=ldb,LDB-XGA,if=RGB666,bpp=32 fb0base=0x27b00000 fbmem=28M" 800x480 LCD: "video=mxcfb0:dev=lcd,CLAA-WVGA,if=RGB565,bpp=32 fb0base=0x27b00000 fbmem=28M" -- dd the logo.bmp to SD card address 0x100000 and skip the 54 bytes bmp file header. sudo dd if=logo.bmp of=/dev/sdc bs=1 seek=1048576 skip=54 5. Note 1) The logo.bmp file should be 32bpp or 16bpp, and it should be synced with video mode parameters "bpp=xx", and uboot config file mx6q_sabresd.h (#define DISPLAY_BPP xx). 2) The IPU number and DI number are hard coded in kernel file "board-mx6q_sabresd.c". static struct fsl_mxc_hdmi_core_platform_data hdmi_core_data = { .ipu_id = 1, .disp_id = 0, }; static struct fsl_mxc_lcd_platform_data lcdif_data = { .ipu_id = 0, .disp_id = 0, .default_ifmt = IPU_PIX_FMT_RGB565, }; static struct fsl_mxc_ldb_platform_data ldb_data = { .ipu_id = 0, .disp_id = 1, .ext_ref = 1, .mode = LDB_SEP1, .sec_ipu_id = 0, .sec_disp_id = 0, }; 3) The IPU number and DI number are defined by Macro in Uboot file "include\configs\mx6q_sabresd.h" #define IPU_NUM 2 // 1 for IPU1, 2 for IPU2. #define DI_NUM 0 // 0 for DI0, 1 for DI1. 4) The display type used in uboot and kernel must be same, same type, same IPU number, same DI port and same resolution. [2015-06-29 Update]: JB4.2.2_1.1.0_uboot_logo_keep_patch_2015-06-29.zip Fix some LVDS issues for iMX6DL. Also given an example for LVDS0 with DI0. New Uboot patches: 0002-Updated-lvds-clock-source-to-pll2_pfd0.-Same-as-kern.patch 0003-Add-support-for-iMX6DL.patch New kernel patches 0003-Skip-lvds-re-initialization-for-logo-keep.patch 0004-Add-examlpe-for-LVDS0-logo-keep.patch [2015-08-07 Update]: JB4.2.2_1.1.0_uboot_logo_keep_patch_2015-08-07.zip Added the new Uboot patch 0004-Correct-the-sequence-to-set-LDB-clock.patch It can correct the LVDS clock set sequence whch is a known issue that caused no LVDS display sometimes. [2015-09-18 Update]: JB4.3_1.1.1_uboot_logo_keep_patch_2015-09-18.zip Added the patch for Android JB4.3_GA1.1.1 release. Updated clock usecount, after blank the display, the related clock can be gated off correctly. Support LVDS clock from PLL5. [2015-12-21 Update]: Added 3.10.53_GA1.1.0 patch: L3.10.53_GA1.1.0_uboot_logo_keep_patch_2015-12-21.zip. Verified on iMX6DL/Q SabreSD board. It supports LCD and LVDS panels, HDMI patch will be released later. [2016-01-04 Update]: Added 3.10.53_GA1.1.0 patch: L3.10.53_GA1.1.0_uboot_logo_keep_patch_2016-01-04.zip. Added HDMI display support. Now it supports LCD, LVDS and HDMI displays. Fixed the video playback issue for boot up. [2016-05-18 Update]: 0001-Fix-the-split-mode-LVDS-panel-no-TX3-signal-issue.patch An issue was founded, when dual channel 4 lanes LVDS panel was used, in uboot there will be no LVDS TX3 signa on one LVDS port, the attach "0001-Fix-the-split-mode-LVDS-panel-no-TX3-signal-issue.patch" was used to fix this issue, it is based on JB4.3_1.1.1_uboot_logo_keep_patch_2015-09-18.zip, for other BSP, please port it manually. [2016-08-29 Update]: 0001-After-reset-IPU-in-SRC-Control-Register-wait-for-res.patch On some iMX6 chip, after reset the IPU in SRC Control Register, enable IPU at once will cause system hang up, to avoid such issue, software needs wait for IPU reset done by polling the SRC register. The attach "0001-After-reset-IPU-in-SRC-Control-Register-wait-for-res.patch" was used to fix this issue, it is based on JB4.3_1.1.1_uboot_logo_keep_patch_2015-09-18.zip + "0001-Fix-the-split-mode-LVDS-panel-no-TX3-signal-issue.patch", for other BSP, please port it manually. [2017-01-06 Update] Added patch for L4.1.15_GA1.2.0 BSP and Android M6.0.1_GA2.1.0 BSP. Files: L4.1.15_GA1.2.0_uboot_logo_keep_patch_2017-01-06.zip; M6.0.1_2.1.0_uboot_logo_keep_patch_2017-01-06.zip

Android Jelly Bean(4.2) locks HDMI rotation by default. You can unlock by the instruction of this commit. -- Author: Jeff Brown <jeffbrown@google.com> Date: Wed Oct 17 18:32:34 2012 -0700 Add special mirroring modes for demonstration purposes. Assume rotation of HDMI display is portait. $ adb shell setprop persist.demo.hdmirotation portrait Don't lock rotation while HDMI is plugged in. $ adb shell setprop persist.demo.hdmirotationlock false Hide secondary displays from apps but continue mirroring to them. $ adb shell setprop persist.demo.singledisplay true Bug: 7326281 Change-Id: I8f9a3b0bc19821a3a01043b0f516806dac82ce53

Description by Google: Wi-Fi scan-only mode is a new platform optimization that lets users keep Wi-Fi scan on without connecting to a Wi-Fi network, to improve location accuracy while conserving battery. Apps that depend on Wi-Fi for location services can now ask users to enable scan-only mode from Wi-Fi advanced settings. Wi-Fi scan-only mode is not dependent on device hardware and is available as part of the Android 4.3 platform. Comments by Freescale: In order to enable wifi scan mode, we should make sure wifi driver shouldn't be removed while switching off wifi from Setting. Additionally, android4.3 has introduced one CTS test to force us to change all loadable modules into kernel built in. The reason is loadable modules are often used by rootkits and other exploits. so there will be big risk in security. OK, now let's try to keep up with the pace of AOSP. For AR6003, we are using compat-wireless driver which accommodates all linux kernel since 2.6.We are now using olca-3.4 wifi driver but our kernel version is 3.0.35. It is not a simple change to be directly compiled into kernel since it is lack of the basic file structure for ath6kl driver. This has been double confirmed by support guy from Atheros. More terribly, Atheros has no plan to publish new version for AR6003 but just maintain it. Yeah, my pitiful baby. Say goodbye to scan mode. This is why this document come into being. AR6003 is our default wifi module bounded to our imx6 serial board. So formal release will lose this important feature for this limitation. Here I will give out patches to enable this feature using another wifi module-----Realtek 8723as. Ok, now let's welcome this new star. Patches description: Patch for kernel--------Change loadable driver modules to compiled into kernel, this will let wlan0 and p2p0 interfaces still can be operated although you have switched off wifi in Setting UI. Patch for device/fsl--------Firstly, I delete one rfkill operation in init.rc which is obsolete for BT setting. If still keep it here, it will soft block wifi interface through mac80211 rfkill. Then I clean up some setting for wifi driver module. Patch for hardware/libhardware_legacy-------Since wifi driver is already directly built in kernel, HAL will have no need to load driver now. Refactor it and optimize it. Test it manually: If you have one sdio rtl8723as wifi module in hand, you can test it like the following to see wifi scan mode works: Firstly, disable wifi in Setting UI. then you can check netcfg result, you will see wlan0 and p2p0 are still there, only down state: Go "advanced" menu in wifi setting,Turning on the checkbox of "Scanning always available". Check netcfg result again, Oh Oh, wlan0 and p2p0 are up: Manually "scan" through "wpa_cli" tool, you will see it works:

In the old Android release R10.3.x for i.MX5x, I had followed the user guide instructions to install the USB driver and am able to setup the ADB connection successfully. Unfortunately, for the same PC, the ADB fails to detect my i.MX6SL EVK which is using R13.5. Updating the Android SDK tools cannot help. The reason is the new Android device is using a different USB VID from the old release. So, to solve this problem, we need to update the ADB configuration to scan for the new vendor ID. Below are the steps to update the ADB configuration for Windows PC. These steps (and the steps for Linux PC as well) can also be found in the R10,3.x user guide. 1. Run the SDK's tools to generate an ADB configure file: C:\Program Files\Android\android-sdk\tools> android.bat update adb 2. Modify the adb usb configure file to add the new vendor id 0x18d1. File: X:\Profile\<your account>\.android\adb_usb.ini # ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT. # USE 'android update adb' TO GENERATE. # 1 USB VENDOR ID PER LINE. 0x15a2 0x18d1 3. Unpack the Freescale Android USB win driver "android_usb_fsl.zip" in your Android BSP release package. If you can't find this file in your current package, please get the R10.3.x release for i.MX5x and unpack it. 4. File "tetherxp.inf" in the unpacked "android_usb_fsl" may not be the updated one if the "android_usb_fsl.zip" is extracted from an old release. So, please overwrite the file "tetherxp.inf" in unpacked "android_usb_fsl.zip" by the new "tetherxp.inf" in your current Android BSP release. 5. Enable the "USB debugging" option on the i.MX6 device System settings -> Developer options -> USB debugging 6. Connect the Android Device into PC, uninstall your old driver named "Android Phone" in the device manager, then re-install driver by scanning and locating .inf file under the directory you unpack the android_usb_fsl.zip manually. 7. Restart the ADB server C:\Program Files\Android\android-sdk\platform-tools> adb kill-server C:\Program Files\Android\android-sdk\platform-tools> adb start-server 8. Finally, test your ADB connection C:\Program Files\Android\android-sdk\platform-tools> adb devices List of devices attached 0123456789ABCDEF device Congratulations! Your ADB is now working. If you have additional information about this topic, please feel free to comment. This document was generated from the following discussion: i.MX6: Android connect to ADB

An i.MX50 customer encountered such kernel bug recently. Android UI has no response, because the suspend work queue is blocked: suspend pm_suspend enter_state suspend_prepare / suspend_finish pm_prepare_console / pm_restore_console vt_move_to_console vt_waitactive vt_event_wait wait_event_interruptible Confimed the same bug can also happen on imx6SL which is running linux 3.0.35. e.g. by echo standby/mem > /sys/power/state It takes over thousand suspend/resume cycles to reproduce the problem. The bug fix has been merged since linux 3.6: commit a7b12929be6cc55eab2dac3330fa9f5984e12dda

When to improve kernel booting using hibernation [1], I found kernel initialized each component [2] took too much time. One solution is to remove unnecessary module to save time. Another approach is to delay those modules until user space up. Then it won’t lost some features just because hopes to gain benefit on booting speed. This is very useful since hibernation’s trigger point is at the late_initcall [3]. Kernel doesn't need do much module initialize since hibernate will restore those module status later. The detailed implementation is in the attached patch. [1]: hibernation is a technique to store system memory content to storage. Then the device can be shutdown and read the content back after power on. [2]: component means subsystem or driver. [3]: Consult kernel/power/hibernate.c, software_resume

Hi All, The new Android JB4.2.2_1.0.0-GA release is now available on www.freescale.com · Files available Name Description IMX6_JB422_100_ANDROID_DOCS i.MX 6Quad, i.MX 6Dual, and i.MX 6DualLite Android jb4.2.2_1.0.0 BSP Documentation. Includes Release Notes, User's Guide, QSG and FAQ Sheet. IMX6_JB422_100_ANDROID_SOURCE i.MX 6Quad, i.MX 6Dual, and i.MX 6DualLite Android jb4.2.2_1.0.0 BSP, Documentation and Source Code for BSP and Codecs. IMX6_JB422_100_ANDROID_DEMO i.MX 6Quad, i.MX 6Dual, and i.MX 6DualLite Android jb4.2.2_1.0.0 BSP Binary Demo Files · Target HW boards o i.MX6DL SABRE SD board o i.MX6Q SABRE SD board o i.MX6DQ SABRE AI board o i.MX6DL SABRE AI board · Release Description i.MX Android jb4.2.2_1.0.0-ga is GA release for Android 4.2.2 Jelly Bean(JB) on i.MX6Q SABRE SD, i.MX6DL SABRE SD and i.MX6Q/DL SABRE AI platform with key features integrated. i.MX Android jb4.2.2_1.0.0-ga release includes all necessary codes, documents and tools to assist users in building and running Android 4.2.2 on i.MX6Q and i.MX6DL hardware board from the scratch. The prebuilt images are also included for a quick trial on Freescale i.MX6Q, i.MX6DL SABRE SD and i.MX6Q/DL SABRE AI boards. Most of deliveries in this release are provided in source code with the exception of some proprietary modules/libraries from third parties. · Features Feature i.MX6Q SABRE SD i.MX6DL SABRE SD i.MX6 SABRE AI Comments Linux 3.0.35 kernel Y Y Y Based on Linux BSP L3.0.35_4.0.0 GA release Google JellyBean 4.2.2 release Y Y Y Based on android-4.2.2_r1 release Bootup with Android Y Y Y Boot source eMMC& External SD eMMC& External SD SD&Nand Default Nand chip been support is Micron MT29F8G08ABABAWP Splash Screen for LVDS Y Y N UI (input) Multi-touch on LVDS panel Multi-touch on LVDS panel Multi-touch on LVDS panel UI (display) LVDS panel, HDMI display LVDS panel, HDMI display LVDS panel, HDMI display UI (dual display, LVDS+HDMI, UI mirror displayed on second device) Y Y Y UI (brightness control) Y Y Y UI (LiveWallpaper) Y Y Y Storage - External Media Y Y Y SD, External SD and UDisk Storage - MTP (Media Transfer Protocol) Y Y Y Connectivity - Ethernet Y Y Y Connectivity - BT Y Y N Hardware: · Atheros AR3001 · Atheros AR3002 Profiles: · A2DP · HID · OPP · PBAP Connectivity - WiFi Y Y Y Hardware: · Atheros AR6103 SDIO card Features: · AP mode · Wake on Wireless Connectivity - 3G Y Y N Hardware: · HUAWEI EM770W modem · Infinion Amazon 1 modem · ZTE FM210 modem Connectivity - GPS Y Y N Connectivity - USB Tethering Y Y Y Support WIFI and Ethernet as upstream Internet - SIP voice call N N N Internet - VPN Y Y Y Power - Battery status report Y Y N/A Known limitations about the accuracy in some use cases Power - CPU Freq Y Y Y Power - Bus Freq Y Y Y Media - Music Play Y Y Y Media - Sound Record Y Y Y Media - Video Play Y Y Y Media - Camera Y Y N Media - TVIN N/A N/A Y PAL/NTSC Media - Dual Camera Y Y Y Hardware for SABRE SD: · Front Camera: OV5642 CSI camera · Rear Camera: OV5640 MIPI camera Hardware for SABRE AI: · Front Camera: UVC camera · Rear Camera: TV IN Media - Camcorder Y Y N Media - USB Camera Y Y Y Logitech: · C250 · E3500 Media - USB Micro Y Y Y Media - Movie Studio Y Y Y Media - HDMI audio output Y Y Y Graphic - HW 3D acceleration Y Y Y OpenGLES 1.1/2.0 via GC2000 or GC800 3D core Graphic - HW accelerated UI surface composition Y Y Y Misc - ADB over USB Y Y Y Misc - Fastboot utility Y Y Y Misc - SW update and factory reset Y Y Y Sensor - Magmatic Y Y N Sensor - Accelerometer Y Y N Sensor - Light Y Y N NTFS-3G File System Y Y Y For external Storage NAND N N Y Tested NAND chip: - Micro 29F8G08ABABA · Change List The below section lists the big changes in JellyBean which need the user’s attention when comparing to Freescale ICS version: o Default Android multiple display implementation in JellyBean o Display resolution change in Setting is not been supported o New camera hal implementation based on JellyBean libcamera2 o Add NTFS file system support for external storage · Known issues For known issues and limitations please consult the release notes

This is the prototype solution to enable second display showing different things on JB4.2.2 SabreSD. Make use of Class Presentation provided by android to be embedded into Status bar. When unlock the screen, the Presentation will show on second display. Now, the solution requires one .mp4 video placed in root sdcard. Of course, you may change it to show anything. The attached Files are a layout xml file, a patch and a recorded video. The layout file should be put into android/frameworks/base/packages/SystemUI/res/layout/ folder. The patch should be applied to frameworks/base.git. The recorded video shows the dual display demo as a reference.

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone makes use of the SIP protocol, an open standard for internet telephony. You can use Linphone with any SIP VoIP operator, including our free SIP audio/video service. Linphone is free software (or open-source), you can download and redistribute it freely. Linphone is available for desktop computers: Linux, Windows, Mac OSX, and for mobile phones: Android, iPhone, Blackberry. Linphone-android is a good example to show the integration of Java code based on Android SDK with native CODEC, network protocols. Not like XBMC-Android that is almost total c++/c project. Perform the following steps to build a linphone-android project: 1. git clone git://git.linphone.org/linphone-android.git --recursive 2. sudo apt-get install autoconf automake libtool pkg-config 3. "cd" to the root of "git clone" : cd /home/user/linphne-android // wherver git'ed linphone-android is 4. export PATH=/home/user/android-ndk:$PATH //wherever your android-ndk, android-sdk tools, and platform-tools, and ANT are stored in. For example on my PC. export PATH=/home/alanz/android-ndk-r8d:/home/alanz/android-sdk-linux/tools:/home/alanz/android-sdk-linux/platform- tools:/home/alanz/bin/apache-ant-1.8.4/bin:$PATH Note: PATH contains the ndk, sdk, and ant. 5. Make sure the network is working, then execute "./prepare_sources.sh" at the linphone-android root 6. Then, execute "/home/alanz/android-ndk-r8d/ndk-build", it will take a while to be finished 7. Modify Makefile as following example, modify it accordingly. NDK_PATH=/home/alanz/android-ndk-r8d SDK_PATH=/home/alanz/android-sdk-linux/tools SDK_PLATFORM_TOOLS_PATH=/home/alanz/android-sdk-linux/platform-tools ..................... generate-libs: $(NDK_PATH)/ndk-build ....... (remove -j$(NUMCPUS) by the end of this command line) 8. execute "make", after finish, the apk file can be found under bin/ subdirectory.

Overview: This document is written for Freescale customers who have Freescale AC3 release packages (excluded package). (If you did not have the AC3 release package, you can disregard this document.) Freescale OMX Player in Android release supports audio track selection when playing files with multiple audio tracks. However, most customers don't use this enhanced API to select the audio track even if current audio codec is not supported. To avoid a soundless output when partial audio track can be played, this document provides the method to select the available audio track automatically to play. The patch in this document is not included in our current release because it did not match with our track selection rule - play the first track. If you have any idea with this issue, feel free to add comments into this document. Issue description: Software: R13.4-GA or R13.4.1 Android releases Hardware: MX6Dual/Quad SabreSD board Test source: 1.mkv Test Step: 1. Lunch Gallery from main menu. 2. Play the video And you can see the watch the video without any sound Root Reason: The file has 2 audio track DTS & AC3: audio track 1 is DTS and track 2 is AC3. OMX Player will choose the first audio track to play as default audio track, which is DTS audio. However, the software only supports the AC3 audio codec, so it could not set up audio decoder for DTS track. If we choose to play the AC3 track, sounds could be heard. How to fix: The audio track index is set in GMPlayer::LoadParser(). You can get audio format to check whether it is supported by decoder. Please see the patch audio_track_slection.diff

i.MX Processors Knowledge Base

i.MX Processors Knowledge Base

Discussions

How to add 3G modem in Sabresx board

i.MX 6 D/Q/DL/S/SL Android jb4.3_1.1.0 GA release

How to install misc JDK in Ubuntu for Android build

i.MX Android Debug Tips for Power Management

Patch to support uboot logo keep from uboot to kernel for NXP Linux and Android BSP (HDMI, LCD and LVDS)

HDMI Rotation of Android Jelly Bean

How to enable wifi scan mode in android4.3?

i.MX Development Quick Start.pdf

i.MX6: Android connect to ADB

sleep indefinitely in wait_event_interruptible(vt_event_waitqueue, vw->done);

HDMI overscan of Android Jelly Bean

Dual video with single UI on i.MX53 SMD with Android R10.4

Fastboot – deferred init

i.MX6 D/Q and i.MX6 DL/S Android JB4.2.2_1.0.0-GA release

Patch for Dual Video Function in i.MX53 Android (Broken Since R10.3.1)

How to Enable Second Display Showing Different Things on JB4.2.2 SabreSD

i.MX6 Android 13.4.1.03 Patch Release

Build Linphone Android for i.MX6

Sabre-l Setup Memo

How to Play a File with Two Audio Tracks: DTS & AC3 on i.MX6/Android