郑重声明:本人原创博文，都是实战，均经过实际项目验证出货的
转载请标明出处:攻城狮2015

Platform: Rockchip rk3128
OS:Android 7.1.2
Kernel: 3.10

问题描述

客户需要在现在的板子上调一款RTL8821cs wifi

解决方法

hal层修改

+++ b/hardware/libhardware_legacy/wifi/rk_wifi_ctrl.c
@@ -78,6 +78,7 @@ static wifi_device supported_wifi_devices[] = {
        {"RTL8723DS",   "024c:d723"},
        {"RTL8188FU",   "0bda:f179"},
        {"RTL8822BU",   "0bda:b82c"},
+       {"RTL8821CS",   "024c:c821"},
        {"RTL8189ES",   "024c:8179"},
        {"RTL8189FS",   "024c:f179"},
        {"RTL8192DU",   "0bda:8194"},

+++ b/hardware/libhardware_legacy/wifi/wifi.c
@@ -89,6 +89,7 @@ extern int ifc_down(const char *name);
 #define RTL8723DS_DRIVER_MODULE_PATH "/system/lib/modules/8723ds.ko"
 #define RTL8188FU_DRIVER_MODULE_PATH "/system/lib/modules/8188fu.ko"
 #define RTL8822BU_DRIVER_MODULE_PATH "/system/lib/modules/8822bu.ko"
+#define RTL8821CS_DRIVER_MODULE_PATH "/system/lib/modules/8821cs.ko"
 #define RTL8822BS_DRIVER_MODULE_PATH "/system/lib/modules/8822bs.ko"
 #define RTL8189ES_DRIVER_MODULE_PATH "/system/lib/modules/8189es.ko"
 #define RTL8189FS_DRIVER_MODULE_PATH "/system/lib/modules/8189fs.ko"
@@ -101,6 +102,7 @@ extern int ifc_down(const char *name);
 #define DRIVER_MODULE_PATH_UNKNOW    ""
 
 #define RTL8822BS_DRIVER_MODULE_NAME "8822bs"
+#define RTL8821CS_DRIVER_MODULE_NAME "8821cs"
 #define RTL8723CS_DRIVER_MODULE_NAME "8723cs"
 #define RTL8723DS_DRIVER_MODULE_NAME "8723ds"
 #define RTL8188EU_DRIVER_MODULE_NAME "8188eu"
@@ -202,6 +204,7 @@ wifi_ko_file_name module_list[] =
        {"RTL8192DU", RTL8192DU_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
        {"RTL8822BU", RTL8822BU_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
        {"RTL8822BS", RTL8822BS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
+       {"RTL8821CS", RTL8821CS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
        {"RTL8188FU", RTL8188FU_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
        {"RTL8189ES", RTL8189ES_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
        {"RTL8723BS", RTL8723BS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG},
@@ -986,7 +989,8 @@ int wifi_change_fw_path(const char *fwpath)
 
     if (wifi_type[0] == 0)
         check_wifi_chip_type_string(wifi_type);
-    if (0 != strncmp(wifi_type, "AP", 2) || !strcmp(wifi_type, "AP6330")) {
+    //  if (0 != strncmp(wifi_type, "AP", 2) || !strcmp(wifi_type, "AP6330")) {
+        if (0 != strncmp(wifi_type, "AP", 2)) {
         return 0;
     }

+++ b/hardware/realtek/rtkbt/system/etc/bluetooth/rtkbt.conf
@@ -8,4 +8,4 @@ DevClassMajorClass=0x01
 DevClassMinorClass=0x1C
 
 #Indicate USB or UART driver bluetooth
-BtDeviceNode=/dev/rtk_btusb
+BtDeviceNode=/dev/ttyS0

kernel修改

+++ b/kernel/arch/arm/configs/rockchip_defconfig
@@ -303,10 +303,17 @@ CONFIG_USB_HSO=y
 CONFIG_USB_NET_INT51X1=y
 CONFIG_USB_IPHETH=y
 CONFIG_USB_SIERRA_NET=y
-CONFIG_WIFI_LOAD_DRIVER_WHEN_KERNEL_BOOTUP=y
-CONFIG_RTL8188EU=y
-CONFIG_ESP8089=y
-CONFIG_RKWIFI=y
+CONFIG_WIFI_LOAD_DRIVER_WHEN_KERNEL_BOOTUP=n
+CONFIG_CFG80211=y
+CONFIG_MAC80211=y
+CONFIG_SSV6051=m
+CONFIG_SSV6051_P2P=y
+CONFIG_SSV6051_SDIO=y
+CONFIG_WIFI_BUILD_MODULE=y
+CONFIG_RTL8188EU=n
+CONFIG_ESP8089=n
+CONFIG_RKWIFI=m
+CONFIG_RTL8821CS=m
 CONFIG_AP6335=y

+++ b/kernel/drivers/net/wireless/Kconfig
@@ -58,6 +58,7 @@ source "drivers/net/wireless/rockchip_wlan/rtl8189fs/Kconfig"
 source "drivers/net/wireless/rockchip_wlan/rtl8188fu/Kconfig"
 source "drivers/net/wireless/rockchip_wlan/rtl8822bs/Kconfig"
 source "drivers/net/wireless/rockchip_wlan/rtl8822bu/Kconfig"
+source "drivers/net/wireless/rockchip_wlan/rtl8821cs/Kconfig"

+++ b/kernel/drivers/net/wireless/Makefile
@@ -20,4 +20,5 @@ obj-$(CONFIG_RTL8188FU)        += rockchip_wlan/rtl8188fu/
 obj-$(CONFIG_ESP8089)                 += rockchip_wlan/esp8089/
 obj-$(CONFIG_RTL8822BS)        += rockchip_wlan/rtl8822bs/
 obj-$(CONFIG_RTL8822BU)        += rockchip_wlan/rtl8822bu/
+obj-$(CONFIG_RTL8821CS)        += rockchip_wlan/rtl8821cs/

剩下的就是添加wifi对应的驱动
kernel/drivers/net/wireless/rockchip_wlan/rtl8821cs

然后配置下dts对应的wlan  bluetooth，相关的gpio电压

郑重声明:本人原创博文，都是实战，均经过实际项目验证出货的
转载请标明出处:攻城狮2015
有需要可以加VX