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--- en:users:drivers:wcn36xx [2015/01/26 09:49]
+++ en:users:drivers:wcn36xx [2015/01/26 09:49] (current)
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+===== wcn36xx =====
+wcn36xx is a mac80211 driver for wcn3660 and wcn3680 chips found from Qualcomm SoC.
+===== Caveats =====
+Currently wcn36xx only compiles with msm kernels and backports infrastructure is needed to get latest cfg80211 and mac80211.
+===== Supported chips =====
+wcn36xx supports both WCN3660 and WCN3680 chips.
+===== Available devices =====
+wcn36xx was tested on Google Nexus 4(Mako), Sony Xperia - T(Mint), Z(Yuga), ZR(Dogo) and Z1(Honami). Basically, wcn36xx can support all MSM based devices.
+===== Features =====
+As a general rule for this section, don't list every tiny detail, just the most important things one should know about.
+==== Working ====
+list wireless features that your driver supports, e.g. station mode, access point mode etc
+  * 11b, 11g, 11n, 11a
+  * HW rate control
+  * hardware encryption(TKIP, CCMP, WEP)
+  * HW connection monitoring
+  * aggregation (Immediate BA only)
+  * [[ProbeResponse|ProbeResponse]] offloading
+  * Beacon filtering
+  * Multicast filtering
+  * WoW
+  * power save
+  * AP mode support
+  * Ad-Hoc
+  * 11s mesh
+==== Not working (yet) ====
+list features that could be supported but are not yet
+    * ARP offloading
+    * 80211AC
+    * P2P
+    * Miracast
+    * Bluetooth coexistence
+    * WAPI
+    * WMM
+    * CQM
+    * DFS
+    * Recovery(In case of chip hanging, wcn36xx must restart it)
+==== Not supported ====
+      * list important features that the device will not support
+===== Sources =====
+wcn36xx is part of the mainline kernel. The latest developement version can be found on github:
+[[https://github.com/KrasnikovEugene/wcn36xx|https://github.com/KrasnikovEugene/wcn36xx]]
+===== Device firmware =====
+The latest greatest firmware can be found on here [[https://www.codeaurora.org/cgit/external/hisense/platform/vendor/qcom-opensource/wlan/prima/tree/firmware_bin?h=8130_CS|https://www.codeaurora.org/cgit/external/hisense/platform/vendor/qcom-opensource/wlan/prima/tree/firmware_bin?h=8130_CS]]
+wcn36xx loads WCNSS_qcom_wlan_nv.bin file and sends it to the hardware.
+===== Support =====
+Mailing list:
+[[http://lists.infradead.org/mailman/listinfo/wcn36xx|http://lists.infradead.org/mailman/listinfo/wcn36xx]]
+There's an IRC channel #wcn36xx at Freenode.
+Bug tracker:
+[[https://github.com/KrasnikovEugene/wcn36xx/issues|https://github.com/KrasnikovEugene/wcn36xx/issues]]
+===== Dissector =====
+If you are hacking on wcn36xx and want to see see what Qualcomm's prima driver (or wcn36xx) sends to and from fw, check out the wcn36xx-dissector. It allows you to view all commands and data in wireshark. It understands most commands and buffer structures.
+[[https://github.com/kanstrup/wcn36xx-dissector|https://github.com/kanstrup/wcn36xx-dissector]]
+===== Compilation =====
+==== Go to working directory ====
+Change to a directory where you'll keep your git repositories like ~/git/
+==== Checkout backports ====
+<code>git clone git://github.com/hauke/backports.git</code>
+==== Checkout linux-next ====
+<code>git clone --no-checkout git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git</code>
+The –no-checkout is there to save space since backports will pickout the relevant stuff anyway.
+==== Checkout wcn36xx ====
+<code>git clone git://github.com/KrasnikovEugene/wcn36xx.git</code>
+Checkout wcn36xx from upstream or your own branch
+==== Generate a build tree ====
+Make sure you have "coccinelle" installed otherwise gentree will fail. Create a file named //copy-list.wcn36xx// in the backports folder containing:
+<code>wcn36xx/ -> drivers/net/wireless/ath/wcn36xx/</code>
+Do a git log, find the first commit that says something like: "refresh on next-20131122". Then execute the command:
+<code>cd backports
+./gentree.py --verbose --clean --git-revision next-20131122 --extra-driver ../ copy-list.wcn36xx ../linux-next/ ../backport-wcn</code>
+This command will create the folder ../backport-wcn where it will put all the necessary linux stuff from linux-next. It will also apply a number of patches, if any of these fail you must sort it out otherwise the build folder will not be ready.
+==== Time to build ====
+<code>cd ../backport-wcn</code>
+Symlink the wcn36xx-folder into the backport-wcn-folder:
+<code>ln -s ~/git/wcn36xx drivers/net/wireless/ath/wcn36xx</code>
+This sets up some links to your cm build:
+<code>export CM_BUILD=mako
+export CM_ROOT=~/mako/cm-10.1</code>
+This executes the defconfig for the environment:
+<code>make KLIB=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+KLIB_BUILD=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+ARCH=arm \
+CROSS_COMPILE=$CM_ROOT/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi- \
+defconfig-wcn36xx</code>
+Builds the module and all necessary compat/cfg80211/mac80211 modules as well:
+<code>make KLIB=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+KLIB_BUILD=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+ARCH=arm \
+CROSS_COMPILE=$CM_ROOT/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-</code>
+==== Build platform driver wcn36xx_msm ====
+<code>cd drivers/net/wireless/ath/wcn36xx/wcn36xx_msm/
+make KLIB=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+KLIB_BUILD=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+ARCH=arm \
+CROSS_COMPILE=$CM_ROOT/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-</code>
+==== NOTES FOR OSX ====
+To make this run on OSX (Mountain Lion) I had to do some changes. 1) The make commands shall not use the same path for the CROSS_COMPILE option. "linux-x86" must be replaced with "darwin-x86".
+) The Makefile in backport-wcn must be modified.
+        * The comment on line 101 looking like this:
+        *  * # RHEL as well, sadly we need to grep for it                                ;\
+        *  *  * It must be remove or else you will get a bash error. 3) You must modify the kconf/Makefile
+        *  *  * To the first line in this file (beginning with CFLAGS) add -DKBUILD_NO_NLS to the end. Otherwise you will get a lkc.h error when building.
+===== Installation =====
+==== Mako on CM 10.1 ====
+) Compile [[CyanogenMod|CyanogenMod]] as per instructions: [[http://wiki.cyanogenmod.org/w/Build_for_mako|http://wiki.cyanogenmod.org/w/Build_for_mako]] Be sure to checkout CM10.1:
+<code>repo init -u git://github.com/CyanogenMod/android.git -b cm-10.1</code>
+) From your CM_ROOT-folder configure the CM Kernel:
+<code>make  -C kernel/lge/mako \
+O=$CM_ROOT/out/target/product/$CM_BUILD/obj/KERNEL_OBJ \
+INSTALL_MOD_PATH=../../system \
+ARCH=arm \
+CROSS_COMPILE="$CM_ROOT/prebuilts/misc/linux-x86/ccache/ccache $CM_ROOT/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-" \
+menuconfig</code>
+        *  *    * Enable loadable module support and all sub-menu entries.
+        *  *    * Enable CCM support under Cryptographic API.
+        *  *    * Disable cfg80211 - wireless configuration API under Networking support -> Wireless.
+        *  *    * Disable PRIMA-WLAN under Device drivers -> Staging drivers -> Qualcomm Atheros Prima WLAN module
+) Replace mako_defconfig with the new .config:
+<code>cp out/target/product/mako/obj/KERNEL_OBJ/.config \
+kernel/lge/mako/arch/arm/configs/mako_defconfig</code>
+) Create new file device/lge/mako/init.mako.wcn36xx.sh:
+<code>#!/system/bin/sh /system/bin/insmod /system/lib/modules/wcn36xx_msm.ko /system/bin/insmod /system/lib/modules/compat.ko /system/bin/insmod /system/lib/modules/cfg80211.ko /system/bin/insmod /system/lib/modules/mac80211.ko /system/bin/insmod /system/lib/modules/wcn36xx.ko </code> 5) Edit device/lge/mako/device.mk and add init.mako.wcn36xx.sh to PRODUCT_COPY_FILES:
+<code>PRODUCT_COPY_FILES += \
+        device/lge/mako/init.mako.bt.sh:system/etc/init.mako.bt.sh \
+        device/lge/mako/init.mako.wcn36xx.sh:system/etc/init.mako.wcn36xx.sh</code>
+) Edit device/lge/mako/init.mako.rc and comment out section 'service p2p_supplicant'. Then copy 'service wpa_supplicant' and rename that to 'service p2p_supplicant'.
+) Add to the end of device/lge/mako/init.mako.rc:
+<code>service wcn36xx /system/bin/sh /system/etc/init.mako.wcn36xx.sh
+    class main
+    user root
+    oneshot</code>
+) Compile new images and flash them according to [[CyanogenMod|CyanogenMod]] instructions.
+) Compile wcn36xx as per instructions above.
+) Install kernel modules to the device:
+<code>adb root
+adb remount
+cd ../backports-output
+adb push compat/compat.ko /system/lib/modules/
+adb push net/wireless/cfg80211.ko /system/lib/modules/
+adb push net/mac80211/mac80211.ko /system/lib/modules/
+adb push drivers/net/wireless/ath/wcn36xx/wcn36xx.ko /system/lib/modules/
+adb push drivers/net/wireless/ath/wcn36xx/wcn36xx_msm/wcn36xx_msm.ko /system/lib/modules/</code>
+) Reboot the device and now you should be able to use wcn36xx from GUI.
+==== Mint on CM 10.1 ====
+        *  *      - Follow instructions ([[http://wiki.cyanogenmod.org/w/Build_for_mint|http://wiki.cyanogenmod.org/w/Build_for_mint]]) do download and build CM sources.
+        *  *      - In case of build error "No such file or directory: 'vendor/sony/blue-common/proprietary/boot/RPM.bin'" download file RPM.bin from [[https://github.com/TheMuppets/proprietary_vendor_sony|https://github.com/TheMuppets/proprietary_vendor_sony]] and put it to the folder 'vendor/sony/blue-common/proprietary/boot'
+        *  *      - Flash built image to the phone as described here [[http://www.xperiablog.net/2012/12/04/how-to-install-cyanogenmod-10-on-your-sony-xperia-t-guide/|http://www.xperiablog.net/2012/12/04/how-to-install-cyanogenmod-10-on-your-sony-xperia-t-guide/]]

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