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Raspberry Pi （raspbian）＋ Planex GW-450D　[Raspberry Pi] [編集]

　Raspberry Pi のNICだけが逝ってしまったのでその代替として11acの無線LAN子機「GW-450D」を導入した。ドライバ導入はメーカ（プラネックス）記事、
　・「Raspberry Piで11ac無線LAN子機『GW-450D』を使うための設定方法」
を参考にしたが、当然、カーネルバージョンが上がっているので少し手順追加・変更が必要であった。
　まずインストール済みRaspbianのカーネルバージョンは、

$ uname -r
3.18.7+

だったが、この場合先人によればGCCのバージョンアップが必要とのことなので、その方の記事を参考にここではGCCバージョンアップのみを実施。
　・GW-450DやWN-AC433UKをRaspberry Piで使う
　ちなみに手元の環境のGCCバージョンは

$ gcc -v
・・・・・・
gcc version 4.8.3 (Raspbian 4.8.3-13)

へ上がっていた。
　次にファームウェアを最新版へアップデート。これはGW-450Dドライバのビルド環境を作成する際に取得するカーネルソースバージョンも最新版となるので、これらを同一にするのが目的。

$ sudo apt-get update
$ sudo apt-get dist-upgrade
$ sudo apt-get install make bc ncurses-dev
$ sudo rpi-update
$ sudo reboot

ちなみに手元の環境で確認すると、

$ uname -r
3.18.8+

がこの時点の最新カーネルバージョンだった。
次にこれに対応した最新版カーネルソースを取得しGW-450Dドライバのビルド環境を作成。

$ sudo su
# cd /usr/src
# wget https://github.com/raspberrypi/linux/archive/rpi-3.18.y.tar.gz
# tar xvfz rpi-3.18.y.tar.gz
# head -5 linux-rpi-3.18.y/Makefile
VERSION = 3
PATCHLEVEL = 18
SUBLEVEL = 8
EXTRAVERSION =
NAME = Diseased Newt
# ln -s /usr/src/linux-rpi-3.18.y/ /lib/modules/`uname -r`/build
# cd /lib/modules/`uname -r`/build
# make mrproper
# zcat /proc/config.gz > .config
# make modules_prepare
# wget https://github.com/raspberrypi/firmware/raw/master/extra/Module.symvers

＜3/9追記＞
Raspberry Pi ２の場合は上記最終行が以下になる
# wget https://github.com/raspberrypi/firmware/raw/master/extra/Module7.symvers -O Module.symvers

　いよいよ「GW-450D」ドライバのコンパイルであるが、このままでは途中エラーが発生してコンパイルできなかった。いろいろとググってみて、
・https://bitbucket.org/sanrath/mediatek_mt7610u_sta_driver_linux-64bit/commits/a989fcd6e073205690434e99ac1dc2b0f837350b
の修正をあてることで、何とかコンパイルすることができた。以下はこれにVendorID、ProductIDなどの変更を追加したパッチファイルになる。

$ cat mediatek_mt7610u_sta_driver_for_3.18.8.patch
diff -urN a/RT2870STA.dat b/RT2870STA.dat
--- a/RT2870STA.dat	2013-09-16 23:03:08.000000000 +0900
+++ b/RT2870STA.dat	2015-03-07 15:15:54.696136992 +0900
@@ -6,7 +6,7 @@
 ChannelGeography=1
 SSID=11n-AP
 NetworkType=Infra
-WirelessMode=5
+WirelessMode=8
 EfuseBufferMode=0
 Channel=0
 BeaconPeriod=100
@@ -17,7 +17,7 @@
 FragThreshold=2346
 TxBurst=1
 PktAggregate=0
-WmmCapable=1
+WmmCapable=0
 AckPolicy=0;0;0;0
 AuthMode=OPEN
 EncrypType=NONE
diff -urN a/chips/mt76x0.c b/chips/mt76x0.c
--- a/chips/mt76x0.c	2013-09-16 23:03:08.000000000 +0900
+++ b/chips/mt76x0.c	2015-03-07 15:15:54.706136902 +0900
@@ -1573,7 +1573,7 @@
 		E2: B0.R21<0>: xo_cxo<0>, B0.R22<7:0>: xo_cxo<8:1> 
 	*/
 	RFValue = (UCHAR)(pAd->RfFreqOffset & 0xFF);
-	RFValue = min(RFValue, 0xBF); /* Max of 9-bit built-in crystal oscillator C1 code */
+	RFValue = min(RFValue, (UCHAR)0xBF); /* Max of 9-bit built-in crystal oscillator C1 code */
 	rlt_rf_write(pAd, RF_BANK0, RF_R22, RFValue);
 	
 	rlt_rf_read(pAd, RF_BANK0, RF_R22, &RFValue);
diff -urN a/common/cmm_info.c b/common/cmm_info.c
--- a/common/cmm_info.c	2013-09-16 23:03:08.000000000 +0900
+++ b/common/cmm_info.c	2015-03-07 15:15:54.716136813 +0900
@@ -44,7 +44,7 @@
 
 #ifdef CONFIG_STA_SUPPORT
 	IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
-		DBGPRINT(RT_DEBUG_TRACE, ("Driver version-%s %s %s\n", STA_DRIVER_VERSION, __DATE__, __TIME__));
+		DBGPRINT(RT_DEBUG_TRACE, ("Driver version-%s %s\n", STA_DRIVER_VERSION, STA_DRIVER_BUILD));
 #endif /* CONFIG_STA_SUPPORT */
 
     return TRUE;
diff -urN a/common/cmm_mac_usb.c b/common/cmm_mac_usb.c
--- a/common/cmm_mac_usb.c	2013-09-16 23:03:08.000000000 +0900
+++ b/common/cmm_mac_usb.c	2015-03-07 15:15:54.726136723 +0900
@@ -27,6 +27,8 @@
 
 #ifdef RTMP_MAC_USB
 
+#define usb_buffer_alloc(a, b, c, d) usb_alloc_coherent(a, b, c, d)
+#define usb_buffer_free(a, b, c, d) usb_free_coherent(a, b, c, d)
 
 #include	"rt_config.h"
 
diff -urN a/common/cmm_wpa.c b/common/cmm_wpa.c
--- a/common/cmm_wpa.c	2013-09-16 23:03:08.000000000 +0900
+++ b/common/cmm_wpa.c	2015-03-07 15:15:54.736136634 +0900
@@ -1802,17 +1802,17 @@
 	Return Value:
 
 	Note:
-		Output ＊ KDF-Length (K, label, Context) where
+		Output \A1\F6 KDF-Length (K, label, Context) where
 		Input:    K, a 256-bit key derivation key
 				  label, a string identifying the purpose of the keys derived using this KDF
 				  Context, a bit string that provides context to identify the derived key
 				  Length, the length of the derived key in bits
 		Output: a Length-bit derived key
 
-		result ＊ ""
-		iterations ＊ (Length+255)/256 
+		result \A1\F6 ""
+		iterations \A1\F6 (Length+255)/256 
 		do i = 1 to iterations
-			result ＊ result || HMAC-SHA256(K, i || label || Context || Length)
+			result \A1\F6 result || HMAC-SHA256(K, i || label || Context || Length)
 		od
 		return first Length bits of result, and securely delete all unused bits
 
@@ -2480,7 +2480,7 @@
 	UCHAR		PrimaryRsnie;			
 	BOOLEAN		bMixCipher = FALSE;	/* indicate the pairwise and group cipher are different*/
 	UCHAR		p_offset;		
-	WPA_MIX_PAIR_CIPHER		FlexibleCipher = MIX_CIPHER_NOTUSE;	/* it provide the more flexible cipher combination in WPA-WPA2 and TKIPAES mode*/
+	WPA_MIX_PAIR_CIPHER FlexibleCipher = WPA_TKIPAES_WPA2_TKIPAES;	/* it provide the more flexible cipher combination in WPA-WPA2 and TKIPAES mode*/
 		
 	rsnielen_cur_p = NULL;
 	rsnielen_ex_cur_p = NULL;
diff -urN a/common/mlme.c b/common/mlme.c
--- a/common/mlme.c	2013-09-16 23:03:08.000000000 +0900
+++ b/common/mlme.c	2015-03-07 15:15:54.746136544 +0900
@@ -535,8 +535,8 @@
 #endif /* RALINK_ATE */
 		/* for performace enchanement */
 		NdisZeroMemory(&pAd->RalinkCounters,
-						(UINT32)&pAd->RalinkCounters.OneSecEnd -
-						(UINT32)&pAd->RalinkCounters.OneSecStart);
+						(ULONG)&pAd->RalinkCounters.OneSecEnd -
+						(ULONG)&pAd->RalinkCounters.OneSecStart);
 
 	return;
 }
diff -urN a/common/rtusb_dev_id.c b/common/rtusb_dev_id.c
--- a/common/rtusb_dev_id.c	2013-09-16 23:03:08.000000000 +0900
+++ b/common/rtusb_dev_id.c	2015-03-07 15:15:54.746136544 +0900
@@ -36,8 +36,9 @@
 /* module table */
 USB_DEVICE_ID rtusb_dev_id[] = {
 #ifdef MT76x0
+	{USB_DEVICE(0x2019,0xAB31)}, /* GW-450D */
 	{USB_DEVICE(0x148F,0x7610)}, /* MT7610U */
-	{USB_DEVICE(0x0E8D,0x7610)}, /* MT7610U */
+	{USB_DEVICE(0x13B1,0x003E)}, /* MT7610U */
 	{USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)}, /* MT7630U */
 	{USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)}, /* MT7650U */
 #endif
diff -urN a/conf/RT2870STA.dat b/conf/RT2870STA.dat
--- a/conf/RT2870STA.dat	2013-09-16 23:03:08.000000000 +0900
+++ b/conf/RT2870STA.dat	2015-03-07 15:15:54.756136455 +0900
@@ -4,9 +4,9 @@
 CountryRegionABand=7
 CountryCode=
 ChannelGeography=1
-SSID=11n-AP
+SSID=
 NetworkType=Infra
-WirelessMode=5
+WirelessMode=8
 EfuseBufferMode=0
 Channel=0
 BeaconPeriod=100
@@ -17,10 +17,10 @@
 FragThreshold=2346
 TxBurst=1
 PktAggregate=0
-WmmCapable=1
+WmmCapable=0
 AckPolicy=0;0;0;0
-AuthMode=OPEN
-EncrypType=NONE
+AuthMode=WPA2PSK
+EncrypType=AES
 WPAPSK=
 DefaultKeyID=1
 Key1Type=0
diff -urN a/contributors.txt b/contributors.txt
--- a/contributors.txt	1970-01-01 09:00:00.000000000 +0900
+++ b/contributors.txt	2015-03-07 15:15:54.756136455 +0900
@@ -0,0 +1 @@
+Sanjit Rath
diff -urN a/include/mcu/mt7650_firmware.h b/include/mcu/mt7650_firmware.h
--- a/include/mcu/mt7650_firmware.h	2013-09-16 23:24:08.000000000 +0900
+++ b/include/mcu/mt7650_firmware.h	2015-03-07 15:25:46.590039797 +0900
@@ -1,28 +1,5 @@
-/*
- *************************************************************************
- * Ralink Tech Inc.
- * 5F., No.36, Taiyuan St., Jhubei City,
- * Hsinchu County 302,
- * Taiwan, R.O.C.
- *
- * (c) Copyright 2002-2010, Ralink Technology, Inc.
- *
- * This program is free software; you can redistribute it and/or modify  *
- * it under the terms of the GNU General Public License as published by  *
- * the Free Software Foundation; either version 2 of the License, or     *
- * (at your option) any later version.                                   *
- *                                                                       *
- * This program is distributed in the hope that it will be useful,       *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- * GNU General Public License for more details.                          *
- *                                                                       *
- * You should have received a copy of the GNU General Public License     *
- * along with this program; if not, write to the                         *
- * Free Software Foundation, Inc.,                                       *
- * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
- *                                                                       *
- *************************************************************************/
+/* AUTO GEN PLEASE DO NOT MODIFY IT */ 
+/* AUTO GEN PLEASE DO NOT MODIFY IT */ 
 
 
 UCHAR MT7650_FirmwareImage[] = {
diff -urN a/include/os/rt_linux.h b/include/os/rt_linux.h
--- a/include/os/rt_linux.h	2013-09-16 23:03:08.000000000 +0900
+++ b/include/os/rt_linux.h	2015-03-07 15:15:54.776136276 +0900
@@ -277,8 +277,8 @@
 
 typedef struct _OS_FS_INFO_
 {
-	int				fsuid;
-	int				fsgid;
+	kuid_t				fsuid;
+	kgid_t				fsgid;
 	mm_segment_t	fs;
 } OS_FS_INFO;
 
@@ -880,11 +880,20 @@
 #define SET_OS_PKT_LEN(_pkt, _len)	\
 		(RTPKT_TO_OSPKT(_pkt)->len) = (_len)
 		
+
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+#define GET_OS_PKT_DATATAIL(_pkt) \
+        (RTPKT_TO_OSPKT(_pkt)->head + (ULONG)RTPKT_TO_OSPKT(_pkt)->tail)
+#define SET_OS_PKT_DATATAIL(_pkt, _start, _len) \
+        ((RTPKT_TO_OSPKT(_pkt))->tail) = (ULONG)_start - (ULONG)(RTPKT_TO_OSPKT(_pkt)->head) + (_len)
+#else
 #define GET_OS_PKT_DATATAIL(_pkt) \
 		(RTPKT_TO_OSPKT(_pkt)->tail)
 #define SET_OS_PKT_DATATAIL(_pkt, _start, _len)	\
-		((RTPKT_TO_OSPKT(_pkt))->tail) = (PUCHAR)((_start) + (_len))
-		
+		((RTPKT_TO_OSPKT(_pkt))->tail) = (ULONG)((_start) + (_len))
+#endif 
+
+
 #define GET_OS_PKT_HEAD(_pkt) \
 		(RTPKT_TO_OSPKT(_pkt)->head)
 
diff -urN a/os/linux/config.mk b/os/linux/config.mk
--- a/os/linux/config.mk	2013-09-16 23:03:08.000000000 +0900
+++ b/os/linux/config.mk	2015-03-07 15:15:54.776136276 +0900
@@ -23,12 +23,12 @@
 
 # Support Wpa_Supplicant
 # i.e. wpa_supplicant -Dralink
-HAS_WPA_SUPPLICANT=n
+HAS_WPA_SUPPLICANT=y
 
 
 # Support Native WpaSupplicant for Network Maganger
 # i.e. wpa_supplicant -Dwext
-HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=n
+HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=y
 
 #Support Net interface block while Tx-Sw queue full
 HAS_BLOCK_NET_IF=n
@@ -207,12 +207,20 @@
 
 HAS_WIFI_P2P_CONCURRENT_FAST_SCAN=n
 
+STA_DRIVER_BUILD := 20141022-1327
+
 #################################################
 
 CC := $(CROSS_COMPILE)gcc
 LD := $(CROSS_COMPILE)ld
 
-WFLAGS := -g -DAGGREGATION_SUPPORT -DPIGGYBACK_SUPPORT -DWMM_SUPPORT  -DLINUX -Wall -Wstrict-prototypes -Wno-trigraphs
+ifndef $(WFLAGS)
+WFLAGS := -DSTA_DRIVER_BUILD="\"${STA_DRIVER_BUILD}\""
+else
+WFLAGS += -DSTA_DRIVER_BUILD="\"${STA_DRIVER_BUILD}\""
+endif
+
+WFLAGS += -g -DAGGREGATION_SUPPORT -DPIGGYBACK_SUPPORT -DWMM_SUPPORT  -DLINUX -Wall -Wstrict-prototypes -Wno-trigraphs
 WFLAGS += -DSYSTEM_LOG_SUPPORT -DRT28xx_MODE=$(RT28xx_MODE) -DCHIPSET=$(MODULE) -DRESOURCE_PRE_ALLOC -DENHANCED_STAT_DISPLAY
 #WFLAGS += -DFPGA_MODE
 WFLAGS += -I$(RT28xx_DIR)/include
@@ -660,7 +668,7 @@
 WFLAGS += -DCONFIG_CSO_SUPPORT -DCONFIG_TSO_SUPPORT
 endif
 
-CHIPSET_DAT = 2860
+CHIPSET_DAT = 2870
 endif
 
 ifneq ($(or $(findstring mt7662e,$(CHIPSET)),$(findstring mt7612e,$(CHIPSET))),)
diff -urN a/os/linux/rt_linux.c b/os/linux/rt_linux.c
--- a/os/linux/rt_linux.c	2013-09-16 23:03:08.000000000 +0900
+++ b/os/linux/rt_linux.c	2015-03-07 15:15:54.786136186 +0900
@@ -497,9 +497,9 @@
 		MEM_DBG_PKT_ALLOC_INC(skb);
 
 		skb_reserve(skb, 2);
-		NdisMoveMemory(skb->tail, pHeader802_3, HdrLen);
+		NdisMoveMemory(GET_OS_PKT_DATATAIL(skb), pHeader802_3, HdrLen);
 		skb_put(skb, HdrLen);
-		NdisMoveMemory(skb->tail, pData, DataSize);
+		NdisMoveMemory(GET_OS_PKT_DATATAIL(skb), pData, DataSize);
 		skb_put(skb, DataSize);
 		skb->dev = pNetDev;	/*get_netdev_from_bssid(pAd, FromWhichBSSID); */
 		pPacket = OSPKT_TO_RTPKT(skb);
@@ -650,7 +650,7 @@
 		pClonedPkt->dev = pRxPkt->dev;
 		pClonedPkt->data = pData;
 		pClonedPkt->len = DataSize;
-		pClonedPkt->tail = pClonedPkt->data + pClonedPkt->len;
+                SET_OS_PKT_DATATAIL(pClonedPkt, pClonedPkt->data, pClonedPkt->len);
 		ASSERT(DataSize < 1530);
 	}
 	return pClonedPkt;
@@ -695,7 +695,7 @@
 	pOSPkt->dev = pNetDev;
 	pOSPkt->data = pData;
 	pOSPkt->len = DataSize;
-	pOSPkt->tail = pOSPkt->data + pOSPkt->len;
+	SET_OS_PKT_DATATAIL(pOSPkt, pOSPkt->data, pOSPkt->len);
 
 	/* copy 802.3 header */
 
@@ -1105,9 +1105,10 @@
 		pOSFSInfo->fsuid = current->fsuid;
 		pOSFSInfo->fsgid = current->fsgid;
 		current->fsuid = current->fsgid = 0;
+
 #else
 		pOSFSInfo->fsuid = current_fsuid();
-		pOSFSInfo->fsgid = current_fsgid();
+		pOSFSInfo->fsgid = current_fsgid(); 
 #endif
 		pOSFSInfo->fs = get_fs();
 		set_fs(KERNEL_DS);
diff -urN a/os/linux/usb_main_dev.c b/os/linux/usb_main_dev.c
--- a/os/linux/usb_main_dev.c	2013-09-16 23:03:08.000000000 +0900
+++ b/os/linux/usb_main_dev.c	2015-03-07 15:15:54.786136186 +0900
@@ -39,7 +39,7 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Paul Lin ");
 MODULE_DESCRIPTION("RT2870 Wireless Lan Linux Driver");
-
+MODULE_LICENSE("GPL");
 #ifdef CONFIG_STA_SUPPORT
 #ifdef MODULE_VERSION
 MODULE_VERSION(STA_DRIVER_VERSION);
diff -urN a/sta/sta_cfg.c b/sta/sta_cfg.c
--- a/sta/sta_cfg.c	2013-09-16 23:03:08.000000000 +0900
+++ b/sta/sta_cfg.c	2015-03-07 15:15:54.796136097 +0900
@@ -5398,7 +5398,7 @@
             wrq->u.data.length = strlen(extra) + 1; /* 1: size of '\0' */
             break;
         case SHOW_DRVIER_VERION:
-            snprintf(extra, size, "Driver version-%s, %s %s\n", STA_DRIVER_VERSION, __DATE__, __TIME__ );
+            snprintf(extra, size, "Driver version-%s, %s\n", STA_DRIVER_VERSION, STA_DRIVER_BUILD );
             wrq->u.data.length = strlen(extra) + 1; /* 1: size of '\0' */
             break;
 #ifdef DOT11_N_SUPPORT

あとはこのパッチを当てればコンパイル・インストールできる筈である。

$ tar xvjf mt7610u_wifi_sta_v3002_dpo_20130916.tar.bz2
$ cd mt7610u_wifi_sta_v3002_dpo_20130916/
$ patch -p1 < ../mediatek_mt7610u_sta_driver_for_3.18.8.patch
$ make
$ sudo make install

なお、文字コードの関係で一部リジェクトされ、手修正が必要になる場合がある。
　最後に冒頭のメーカ（プラネックス）記事を参考にネットワーク設定すれば良い。