qca wlan wifi modules解析一
分析lsdk-ap121 lsdk-ap134 源码： https://github.com/hades13/lsdk_ar9531 包含wifi drivers
另一wifi drivers版本： https://download.csdn.net/download/nolycjyf/3722308
目录结果：
apps
build
drivers
include
modules
boot
docs
images
linux
patches
rootfs
wifi drivers 在drivers目录下：
drivers\
firmware\
wlan_modules\
adf
asf
hal
include
LicenseChoice.txt
lmac
Notice.txt
os
smartantenna
umac
wow
编译之后生成内核ko文件，在启动时会insmod，在文件
rootfs/board953x/etc/rc.d/rc.wlan
rc.wlan启动时执行：
#
# Finally, insert the modules
#
insmod $MODULE_PATH/adf.ko
insmod $MODULE_PATH/asf.ko
insmod $MODULE_PATH/ath_hal.ko
insmod $MODULE_PATH/ath_rate_atheros.ko
insmod $MODULE_PATH/ath_spectral.ko $SPECTRAL_ARGS
if [ "${AP_NO_A_BAND}" != "1" ]; then
#load DFS if A band is supported,default is supported and set AP_NO_A_BAND=1 if not supported
insmod $MODULE_PATH/ath_dfs.ko $DFS_ARGS
fi
insmod $MODULE_PATH/hst_tx99.ko
insmod $MODULE_PATH/ath_dev.ko
insmod $MODULE_PATH/umac.ko
insmod $MODULE_PATH/wlan_me.ko
insmod $MODULE_PATH/ath_pktlog.ko
查看编译后生成的文件：
./asf/asf.ko
./os/linux/ath_hal/ath_hal.ko
./smartantenna/smart_antenna.ko
./adf/adf.ko
./lmac/ath_dev/ath_dev.ko
./lmac/ratectrl/ath_rate_atheros.ko
./lmac/ath_pktlog/ath_pktlog.ko
./umac/umac.ko
这是部分wifi驱动的内容，完整的架构包含以下内容： asf : Atheros Service Framework (ASF) qdf : Qualcomm Driver Framework lmac : LMAC (Lower Media Access Controller) umac : UMAC (Upper Media Access Controller) wow : The Wake on Wireless
1. asf.ko – Basic Framework module
2. qdf.ko – Basic Framework module
3. ath_spectral.ko – Spectral Support
4. ath_dfs.ko – DFS support
5. umac.ko – Common 802.11 protocol Management
6. ath_hal.ko – Direct-Attach HW abstraction Layer
7. ath_rate_atheros.ko – Direct-Attach Rate Control Support
8. hst_tx99.ko – Direct-Attach Tx99 Support
9. ath_dev.ko – Direct-Attach LMAC Layer
10. qca_da.ko – Direct-Attach Driver Support
11. qca_ol.ko – Offload Driver Support
12. smart_antenna.ko – Smart Antenna Support
13. ath_pktlog.ko – Direct-Attach Packet logging Support
驱动的层次结构如下：
驱动结构如下：
