Add nt9852x support

Makefile

@@ -156,6 +156,7 @@ CONFIG_PLATFORM_RTK119X_AM = n
 CONFIG_PLATFORM_RTK129X = n
 CONFIG_PLATFORM_RTK390X = n
 CONFIG_PLATFORM_NOVATEK_NT72668 = n
+CONFIG_PLATFORM_NOVATEK_NT9852X = n
 CONFIG_PLATFORM_HISILICON = n
 CONFIG_PLATFORM_HISILICON_HI3798 = n
 CONFIG_PLATFORM_NV_TK1 = n
@@ -2019,6 +2020,20 @@ KSRC := /Custom/Novatek/TCL/linux-3.8_header
 #KSRC := $(KERNELDIR)
 endif
 
+ifeq ($(CONFIG_PLATFORM_NOVATEK_NT9852X), y)
+EXTRA_CFLAGS += -DCONFIG_PLATFORM_NOVATEK_NT9852X
+EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN
+EXTRA_CFLAGS += -DCONFIG_CONCURRENT_MODE
+EXTRA_CFLAGS += -DCONFIG_IOCTL_CFG80211 -DRTW_USE_CFG80211_STA_EVENT
+EXTRA_CFLAGS += -DCONFIG_USE_USB_BUFFER_ALLOC_RX
+EXTRA_CFLAGS += -DCONFIG_USE_USB_BUFFER_ALLOC_TX
+ARCH ?= arm
+CROSS_COMPILE := arm-ca9-linux-gnueabihf-
+KVER := 4.19.91
+KSRC := /home/novatek/SDK/na51055_linux_sdk_528/BSP/linux-kernel
+EXTRA_CFLAGS += -Wno-incompatible-pointer-types
+endif
+
 ifeq ($(CONFIG_PLATFORM_ARM_TCC8930_JB42), y)
 EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN
 # default setting for Android 4.1, 4.2

include/rtl8821c_hal.h

@@ -46,8 +46,11 @@
 			/* 8821C - RX FIFO :16K ,for RX agg DMA mode = 16K, Rx agg USB mode could large than 16k*/
 			/* #define MAX_RECVBUF_SZ		(16384 + RX_FIFO_EXPANDING)*/
 			/* For Max throughput issue , need to use USB AGG mode to replace DMA AGG mode*/
-			#define MAX_RECVBUF_SZ (32768)
-
+			#ifdef CONFIG_PLATFORM_NOVATEK_NT9852X
+				#define MAX_RECVBUF_SZ (16384)
+			#else
+				#define MAX_RECVBUF_SZ (32768)
+			#endif
 			/*#define MAX_RECVBUF_SZ_8821C (24576)*/ /* 24k*/
 			/*#define MAX_RECVBUF_SZ_8821C (20480)*/ /*20K*/
 			/*#define MAX_RECVBUF_SZ_8821C (10240) */ /*10K*/