[TOC]
VS Code IDE for free download, while support c&c++ after install plug-in . MinGW means Minimalist GNU for Windows downloading , is open source GCC compiler on Windows . to integrate VS Code & MinGW .
Access to config c_cpp_properties.json and tasks.json , then you can compile and run c files ,main configuration as follow:
c_cpp_properties.json
{
"configurations": [
{
"name": "Win32",
"includePath": [
"${workspaceFolder}/**"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"compilerPath": "D:\\chear\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\gcc.exe",
"cStandard": "c99",
"cppStandard": "gnu++14",
"intelliSenseMode": "gcc-x86"
}
],
"version": 4
}tasks.json
{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: gcc.exe genKeyTools",
"command": "D:\\chear\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\gcc.exe",
"args": [
"-fdiagnostics-color=always",
"-g",
"${fileDirname}\\*.c",
"-o",
"${fileDirname}\\EX3220-T0_TM_GenKeyTool_V2.3_64_v7_2.exe"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "编译器: D:\\chear\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\gcc.exe"
}
]
}(Use "c&c++" plug-in within VS Code ,its easy to conflict with "clangd" , when change settings for plug-in should restart VS Code. )
want to view the source for linux on server in VS Code must install "remote ssh" & "clangd" plug-in on VS Code , also need use bear command to generate compile_commands.json for source index.
For example generate source index for en75xx-loader
# bear make package/private/econet/en75xx-loader/{clean,install} V=99
# ln -s /home/chear/cicd/opal/compile_commands.json /home/chear/cicd/opal/build_dir/target-mipsel-buildroot-linux-uclibc/linux-en75xx_hgw500tx2x2e/en75xx-loader-7.3.251.900/compile_commands.json(to use "clangd" should keep confirm "compile_commands.json" with-in workspace folder.)
to generate 'compile_commands.josn' on workspace folder.
# cd package/private/zyxel/esmd && TOPDIR=/work/cpe-opal/EXTDISK/opal20/opal INCLUDE_DIR=/work/cpe-opal/EXTDISK/opal20/opal/include bear make V=ssto get my log by
$ zyrepo foreach -c "git log CTB_7528HU_7561DU_HGW500TX2X2E_20210801 --after="2021-8-1" --format=\"%ae: %h --%ce\" --author=\"Chear Huang\""
( %h: short commit hash, %ae: author email, %ce: commit email.)
$ git reset --hard "HEAD^"
(to delete last commit.)building xgPon
## to building kernel
make source mod=kernel V=99;
## to building sub dir and contains Makefile.hsan
make source mod=hisilicon V=99
## to building hisilicon/gateway/service
make source mod=service V=99DNS based on UDP and default for 53 port , DNS packet as following:
prepare create new user and generate public key by ssh-keygen , then add this user to 'docker' group
# sudo useradd -m sw3_pub
# sudo passwd sw3_pub
# sudo usermod -aG docker sw3_pub
# ssh-keygen -t ed25519get docker image and register gitlab-runner
$ docker run -d -p 5000:5000 --restart=always --name registry -v /srv/registry:/var/lib/registry registry:2
$ docker run -d --name gitlab-runner --restart always -v /srv/gitlab-runner/config:/etc/gitlab-runner -v /var/run/docker.sock:/var/run/docker.sock -v /home/gitlab-runner_volumes:/home/gitlab-runner_volumes --dns 172.21.5.1 gitlab/gitlab-runner:ubuntu-v12.8.0
$ docker run --rm --add-host pkgtarball.mitrastar.com:172.25.24.30 -it cpe-docker-registry.zyxel.com:5000/my-build-server3:v1.01 bashlogin to gitlab container and make certification for url btc-git.zyxel.com
$ docker exec -it gitlab-runner bash
root@:/# openssl s_client -connect btc-git.zyxel.com:443 -showcerts < /dev/null | openssl x509 -outform PEM > /etc/ssl/certs/btc-git.zyxel.com.crt
root@:/# gitlab-runner --debug register -n --tls-ca-file="/etc/ssl/certs/btc-git.zyxel.com.crt" --name ctb_build-it --url https://btc-git.zyxel.com/ -r 6wunkyzuVyTPXxN_6y8N --executor docker --docker-image cpe-docker-registry.zyxel.com:5000/my-build-server3:v1.01 --docker-dns 172.21.5.1 --docker-volumes /mnt/gitlab-runner_volumes_1/build:/mnt/build/:rw --docker-volumes /mnt/gitlab-runner_volumes_1/builds:/builds:rw --docker-volumes /mnt/gitlab-runner_volumes_1/script:/script:rw --docker-volumes /mnt/gitlab-runner_volumes_1/gitlab-daily-build-image:/gitlab-daily-build-image:rw --docker-volumes /opt/tools/zyrepo:/opt/tools/zyrepo:rw --docker-volumes /home/sw3_pub/.ssh:/root/.ssh:rw --tag-list "tagsBuildCTBOPAL2-it" --docker-tlsverify false
root@:/# gitlab-runner list
root@:/# gitlab-runner unregister --tls-ca-file="/etc/ssl/certs/btc-git.zyxel.com.crt" --url https://btc-git.zyxel.com/ --token tkCsX-fJygTdtgjvNqvQ
root@:/# gitlab-runner restart$ mkdir -p ~/.tldr/tldr
$ sudo git clone https://codechina.csdn.net/mirrors/tldr-pages/tldr.git ~/.tldr/tldr
$ sudo apt-get update
$ sudo apt-get install tldrgenerate u-boot config and building u-boot by:
$ tar -xf uboot-2022.04_0421_formal.tar.xz
$ cd uboot-mtk-20220412-sb
## make mt7981_spim_nand_rfb_defconfig
$ make
$ make CROSS_COMPILE=/usr/bin/aarch64-linux-gnu-to generate configuration by ./script/kconfig/Makefile
%config: scripts_basic outputmakefile FORCE
$(Q)$(MAKE) $(build)=scripts/kconfig $@
## Express commands:
## make -f ./scripts/Makefile.build obj=scripts/kconfig mt7981_spim_nand_rfb_defconfig
%_defconfig: $(obj)/conf
$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
## Express commands:
## scripts/kconfig/conf --defconfig=arch/../configs/mt7981_spim_nand_rfb_defconfig Kconfigto generate u-boot.bin
./tools/mkimage -T mtk_image -a 0x41e00000 -e 0x41e00000 -n "media=snand;nandinfo=2k+64" -d u-boot.bin u-boot-mtk.bin >/dev/null ;generate bootloader
$ cp u-boot.bin ../atf-20220421-d0152f6db/
$ make menuconfig && make
## Express:
## make -f /work/cpe-opal/mtk_porting/atf-20220421-d0152f6db/Makefile PLAT="mt7981" CROSS_COMPILE="/usr/bin/aarch64-linux-gnu-" BOOT_DEVICE="spim-nand" NMBM=1 NAND_TYPE="spim:2k+64" DRAM_USE_DDR4=0 DDR3_FREQ_2133=1 BOARD_BGA=1 LOG_LEVEL=20 BL33="./u-boot.bin" clean
## make -f /work/cpe-opal/mtk_porting/atf-20220421-d0152f6db/Makefile PLAT="mt7981" CROSS_COMPILE="/usr/bin/aarch64-linux-gnu-" BOOT_DEVICE="spim-nand" NMBM=1 NAND_TYPE="spim:2k+64" DRAM_USE_DDR4=0 DDR3_FREQ_2133=1 BOARD_BGA=1 LOG_LEVEL=20 BL33="./u-boot.bin" all fip
to upgrade by bootloader by MTK sdk
MT7981> mtkupgrade bl2
## bl2.img
MT7981> mtkupgrade fip
## fip.bin
MT7981> mtkupgrade simg
## bootloader-factory.bin## git fetch origin [remote_branch]:[local_branch]
$ git fetch origin develop:develop
## '--allow-unrelated-histories' means merge different repo code.
$ git merge local_develop --allow-unrelated-histories $ find ./ -name "*.tgz" -exec mv {} ../../mt7981_cicd/opal20/opal/dl/ \;Create new package 'test' structure as following, this package just print many '#' symbol and generate a.out when compile this package, and copy file a.out to rootfs.
# tree package/mtk/test/
package/mtk/test/
|-- Makefile
└-- just_test-2.0
└-- Makefilepackage/mtk/test/Makefile as following
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
#These lines concatanate the package name and list the URL location from which the package source code is to be downloaded
PKG_NAME:=just_test
PKG_VERSION:=2.0
PKG_RELEASE:=1
PKG_NAME_VER:= $(PKG_NAME)-$(PKG_VERSION)
#PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
#PKG_SOURCE_URL:=@ZyXEL_SITE/private/ZyXEL
#DL_DIR:=$(TOPDIR)/dl/private
PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
#MAKE_PATH:=just_test-2.0
#PACKAGE_DIR:=$(BIN_DIR)/packages/private
#PATCH_DIR:=patches-$(PKG_VERSION)
include $(INCLUDE_DIR)/package.mk
define Package/just_test
SECTION:=net
CATEGORY:=Zyxel Packages
TITLE:= ZyXEL Test fun.
# DEPENDS:=@ZYXEL_ONECONNECT
endef
define Package/just_test/description
Going down this fun.
endef
define Package/just_test/config
#select PACKAGE_zcmd if PACKAGE_zcfg
endef
define Package/just_test/clean
$(info chear_debug: just_test clean fun.)
endef
define Build/Prepare
rm -rf $(PKG_BUILD_DIR)
$(info chear_debug: just_test Prepare fun, $(PKG_BUILD_DIR))
$$(call link_files,$(PKG_NAME_VER),$(BUILD_DIR))
endef
define Package/just_test/compile
$(MAKE) -C $(PKG_BUILD_DIR) all
endef
define Package/just_test/install
$(INSTALL_DIR) $(1)/usr/bin/
$(INSTALL_BIN) $(PKG_BUILD_DIR)/a.out $(1)/usr/bin/
endef
$(eval $(call BuildPackage,just_test))to building new package.
# make pacakge/mtk/test/compile V=sUBIFS is file system developed by Nokia engineers , is next generation of the JFFS2 . One thing to understand that UBIFS is very different to any traditional file system
- it does not work on top of block devices (like
hard drives,MMC/SD cards,USB flash drives,SSDs, etc). - UBIFS was designed to work on top of raw flash, which has nothing to do with block devices.
- UBIFS does not work on
MMC cardsand the like -they look like block devices to the outside world MMC cardsimplement FTL (Flash Translation Layer) support in hardware, which simply speaking emulates a block device on top of the built-in raw flash. More detail pdf
mtd and ubi
very useful command to find out kernel source , refs Programmer’s Guide for ARMv8.pdf
# find ./drivers/leds/ -name "*.o" |awk '{print $1}' |sed 's/\.o/\.c/g' |xargs grep -n "_led_probe"cmd"atled" --> cmd "do_led"--> drivers/leds/led-uclass.c --> drivers/gpio/gpio-uclass.c
(zloader) (u-boot) |
driver/pinctrl/mediatek/pinctrl-mtk-common.c <---|
void mtk_rmw(struct udevice *dev, u8 i, u32 reg, u32 mask, u32 set)
Documentation/devicetree/bindings/leds/common.txt
Documentation/devicetree/bindings/leds/leds-gpio.txt
ex3320-t0-tm.dts* for leds
zyleds {
compatible = "gpio-leds";
led_red_inet {
label = "zyled-red-inet";
gpios = <&pio 28 GPIO_ACTIVE_LOW>;
default-state = "off";
};
led_blue_inet {
label = "zyled-blue-inet";
gpios = <&pio 31 GPIO_ACTIVE_LOW>;
default-state = "keep";
};
}match to driver within led-gpio.c
static const struct of_device_id of_gpio_leds_match[] = {
{ .compatible = "gpio-leds", },
{},
};led working flow in kernel such like:
graph LR
A("./driver/leds/leds-gpio.c")-->B("./leds/led-class.c")
B-->E("./leds/ledtrig-timer.c")
building uboot:
# cd uboot-mtk-20220412-sb
# make mt7981_spim_nand_sb_rfb_defconfig
# make V=s FIT_KEY=./../keys/fit_key.crtbuilding atf (Arm Trust Firmware)
# cd atf
# make distclean
# export CROSS_COMPILE=/usr/bin/aarch64-linux-gnu-
# make PLAT="mt7981" BL33=../Uboot-upstream/u-boot.bin BOOT_DEVICE="spim-nand" NMBM=1 NAND_TYPE="spim:2k+64" DRAM_USE_DDR4=0 DDR3_FREQ_2133=1 BOARD_BGA=1 LOG_LEVEL=20 MBEDTLS_DIR=../tools/mbedtls-mbedtls-2.24.0/ TRUSTED_BOARD_BOOT=1 GENERATE_COT=1 ROT_KEY=../keys/fip_private_key.pem BROM_SIGN_KEY=../keys/bl2_private_key.pem all fipbuilding kernel & rootfs
# git clone --branch openwrt-21.02 https://git.openwrt.org/openwrt/openwrt.git
# cp -Rf tools/mtk-wifi-mt7981/* openwrt/
# echo "src-git mtk_openwrt_feed https://git01.mediatek.com/openwrt/feeds/mtk-openwrt-feeds" >>feeds.conf.default
# cd openwrt
# ./autobuild/clean-staging.sh
# ./autobuild/mt7981-AX3000-sb/lede-branch-build-sanity.shIGMP Snooping
IGMP proxy
0 10 20 30
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type = 0x11 | Max Resp Code | Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Group Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Resv |S| QRV | QQIC | Number of Sources (N) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Address [1] |
+- -+
| Source Address [2] |
+- . -+
. . .
. . .
+- -+
| Source Address [N] |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Code: Initialized to zero by the sender; ignored by receivers.
Max Resp Code field:
The value is in units of 1/10 second.
If Max Resp Code < 128, Max Resp Time = Max Resp Code
If Max Resp code >= 128, Max Resp Time = (mant | 0x10) << (exp + 3)
0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+
|1| exp | mant |
+-+-+-+-+-+-+-+-+
(Note : IGMPv1 MRC 10sec , IGMPv2 MRC 025.5 sec , IMPv3 MRC : 052.90 minutes )
Querier’s Query Interval Code field:
If QQIC < 128, QQI = QQIC
If QQIC >= 128, QQI = (mant | 0x10) << (exp + 3)
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+ Calculate +-+-+-+-+-+-+-+-+
|1| exp | mant | MAX Val |1|1 1 1|1 1 1 1|
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
QRV: Querier’s Robustness Variable
S Flag: Suppress Router-Side Processing
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type = 0x22 | Reserved | Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved | Number of Group Records (M) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. .
. Group Record [1] .
. .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. .
. Group Record [2] .
. .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| . |
. . .
| . |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
. .
. Group Record [M] .
. .
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
WPS working process.
(key press wps button)
zybtnchk --> sendMsgHdr->type = ZCFG_MSG_WPS_START_ONBOARDING;
sendMsgHdr->srcEid = ZCFG_EID_ZYBTNCHK;
sendMsgHdr->dstEid = ZCFG_EID_WIFID;
|
|----
|
v
zywifid zyWifiWPSOnboarding --> zymtk_wps_onboarding
rm /data/map_cfg_agent_bh_profile.txt
/usr/bin/wappctrl ra0 wps_pbc
|
|--> zymtk_iwpriv_set_ssid
|--> zymtk_iwpriv_set_radio