Staging: add rt2870 wireless driver

This is the Ralink RT2870 driver from the company that does horrible
things like reading a config file from /etc.  However, the driver that
is currently under development from the wireless development community
is not working at all yet, so distros and users are using this version
instead (quite common hardware on a lot of netbook machines).

So here is this driver, for now, until the wireless developers get a
"clean" version into the main tree, or until this version is cleaned up
sufficiently to move out of the staging tree.

Ported to the Linux build system and cleaned up a bit already by me.

Cc: Linux wireless <linux-wireless@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/Kconfig

@@ -71,6 +71,8 @@ source "drivers/staging/otus/Kconfig"
 
 source "drivers/staging/rt2860/Kconfig"
 
+source "drivers/staging/rt2870/Kconfig"
+
 source "drivers/staging/benet/Kconfig"
 
 source "drivers/staging/comedi/Kconfig"

drivers/staging/Makefile

@@ -18,6 +18,7 @@ obj-$(CONFIG_POCH)		+= poch/
 obj-$(CONFIG_AGNX)		+= agnx/
 obj-$(CONFIG_OTUS)		+= otus/
 obj-$(CONFIG_RT2860)		+= rt2860/
+obj-$(CONFIG_RT2870)		+= rt2870/
 obj-$(CONFIG_BENET)		+= benet/
 obj-$(CONFIG_COMEDI)		+= comedi/
 obj-$(CONFIG_ASUS_OLED)		+= asus_oled/

drivers/staging/rt2870/Kconfig

+config RT2870
+	tristate "Ralink 2870 wireless support"
+	depends on USB && X86 && WLAN_80211
+	---help---
+	  This is an experimental driver for the Ralink 2870 wireless chip.
+

drivers/staging/rt2870/Makefile

+obj-$(CONFIG_RT2870)	+= rt2870sta.o
+
+# TODO: all of these should be removed
+EXTRA_CFLAGS += -DLINUX -DAGGREGATION_SUPPORT -DPIGGYBACK_SUPPORT -DWMM_SUPPORT
+EXTRA_CFLAGS += -DRT2870
+EXTRA_CFLAGS += -DCONFIG_STA_SUPPORT
+EXTRA_CFLAGS += -DDBG
+EXTRA_CFLAGS += -DDOT11_N_SUPPORT
+EXTRA_CFLAGS += -DWPA_SUPPLICANT_SUPPORT
+EXTRA_CFLAGS += -DNATIVE_WPA_SUPPLICANT_SUPPORT
+
+rt2870sta-objs :=		\
+	common/md5.o		\
+	common/mlme.o		\
+	common/rtmp_wep.o	\
+	common/action.o		\
+	common/cmm_data.o	\
+	common/rtmp_init.o	\
+	common/rtmp_tkip.o	\
+	common/cmm_sync.o	\
+	common/eeprom.o		\
+	common/cmm_sanity.o	\
+	common/cmm_info.o	\
+	common/cmm_wpa.o	\
+	common/dfs.o		\
+	common/spectrum.o	\
+	sta/assoc.o		\
+	sta/aironet.o		\
+	sta/auth.o		\
+	sta/auth_rsp.o		\
+	sta/sync.o		\
+	sta/sanity.o		\
+	sta/rtmp_data.o		\
+	sta/connect.o		\
+	sta/wpa.o		\
+	rt_linux.o		\
+	rt_profile.o		\
+	rt_main_dev.o		\
+	sta_ioctl.o		\
+	common/ba_action.o	\
+	2870_main_dev.o		\
+	common/2870_rtmp_init.o	\
+	common/rtusb_io.o	\
+	common/rtusb_bulk.o	\
+	common/rtusb_data.o	\
+	common/cmm_data_2870.o
+

drivers/staging/rt2870/TODO

+TODO:
+	- checkpatch.pl clean
+	- sparse clean
+	- port to in-kernel 80211 stack
+	- remove reading from /etc/ config files
+	- review by the wireless developer community
+
+Please send any patches or complaints about this driver to Greg
+Kroah-Hartman <greg@kroah.com> and don't bother the upstream wireless
+kernel developers about it, they want nothing to do with it.

drivers/staging/rt2870/aironet.h

+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2007, 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.             *
+ *                                                                       *
+ *************************************************************************
+
+	Module Name:
+	aironet.h
+
+	Abstract:
+
+	Revision History:
+	Who			When			What
+	--------	----------		----------------------------------------------
+	Name		Date			Modification logs
+	Paul Lin	04-06-15		Initial
+*/
+
+#ifndef	__AIRONET_H__
+#define	__AIRONET_H__
+
+// Measurement Type definition
+#define	MSRN_TYPE_UNUSED				0
+#define	MSRN_TYPE_CHANNEL_LOAD_REQ		1
+#define	MSRN_TYPE_NOISE_HIST_REQ		2
+#define	MSRN_TYPE_BEACON_REQ			3
+#define	MSRN_TYPE_FRAME_REQ				4
+
+// Scan Mode in Beacon Request
+#define	MSRN_SCAN_MODE_PASSIVE			0
+#define	MSRN_SCAN_MODE_ACTIVE			1
+#define	MSRN_SCAN_MODE_BEACON_TABLE		2
+
+// PHY type definition for Aironet beacon report, CCX 2 table 36-9
+#define	PHY_FH							1
+#define	PHY_DSS							2
+#define	PHY_UNUSED						3
+#define	PHY_OFDM						4
+#define	PHY_HR_DSS						5
+#define	PHY_ERP							6
+
+// RPI table in dBm
+#define	RPI_0			0			//	Power <= -87
+#define	RPI_1			1			//	-87 < Power <= -82
+#define	RPI_2			2			//	-82 < Power <= -77
+#define	RPI_3			3			//	-77 < Power <= -72
+#define	RPI_4			4			//	-72 < Power <= -67
+#define	RPI_5			5			//	-67 < Power <= -62
+#define	RPI_6			6			//	-62 < Power <= -57
+#define	RPI_7			7			//	-57 < Power
+
+// Cisco Aironet IAPP definetions
+#define	AIRONET_IAPP_TYPE					0x32
+#define	AIRONET_IAPP_SUBTYPE_REQUEST		0x01
+#define	AIRONET_IAPP_SUBTYPE_REPORT			0x81
+
+// Measurement Request detail format
+typedef	struct	_MEASUREMENT_REQUEST	{
+	UCHAR	Channel;
+	UCHAR	ScanMode;			// Use only in beacon request, other requests did not use this field
+	USHORT	Duration;
+}	MEASUREMENT_REQUEST, *PMEASUREMENT_REQUEST;
+
+// Beacon Measurement Report
+// All these field might change to UCHAR, because we didn't do anything to these report.
+// We copy all these beacons and report to CCX 2 AP.
+typedef	struct	_BEACON_REPORT	{
+	UCHAR	Channel;
+	UCHAR	Spare;
+	USHORT	Duration;
+	UCHAR	PhyType;			// Definiation is listed above table 36-9
+	UCHAR	RxPower;
+	UCHAR	BSSID[6];
+	UCHAR	ParentTSF[4];
+	UCHAR	TargetTSF[8];
+	USHORT	BeaconInterval;
+	USHORT	CapabilityInfo;
+}	BEACON_REPORT, *PBEACON_REPORT;
+
+// Frame Measurement Report (Optional)
+typedef	struct	_FRAME_REPORT	{
+	UCHAR	Channel;
+	UCHAR	Spare;
+	USHORT	Duration;
+	UCHAR	TA;
+	UCHAR	BSSID[6];
+	UCHAR	RSSI;
+	UCHAR	Count;
+}	FRAME_REPORT, *PFRAME_REPORT;
+
+#pragma pack(1)
+// Channel Load Report
+typedef	struct	_CHANNEL_LOAD_REPORT	{
+	UCHAR	Channel;
+	UCHAR	Spare;
+	USHORT	Duration;
+	UCHAR	CCABusy;
+}	CHANNEL_LOAD_REPORT, *PCHANNEL_LOAD_REPORT;
+#pragma pack()
+
+// Nosie Histogram Report
+typedef	struct	_NOISE_HIST_REPORT	{
+	UCHAR	Channel;
+	UCHAR	Spare;
+	USHORT	Duration;
+	UCHAR	Density[8];
+}	NOISE_HIST_REPORT, *PNOISE_HIST_REPORT;
+
+// Radio Management Capability element
+typedef	struct	_RADIO_MANAGEMENT_CAPABILITY	{
+	UCHAR	Eid;				// TODO: Why the Eid is 1 byte, not normal 2 bytes???
+	UCHAR	Length;
+	UCHAR	AironetOui[3];		// AIronet OUI (00 40 96)
+	UCHAR	Type;				// Type / Version
+	USHORT	Status;				// swap16 required
+}	RADIO_MANAGEMENT_CAPABILITY, *PRADIO_MANAGEMENT_CAPABILITY;
+
+// Measurement Mode Bit definition
+typedef	struct	_MEASUREMENT_MODE	{
+	UCHAR	Rsvd:4;
+	UCHAR	Report:1;
+	UCHAR	NotUsed:1;
+	UCHAR	Enable:1;
+	UCHAR	Parallel:1;
+}	MEASUREMENT_MODE, *PMEASUREMENT_MODE;
+
+// Measurement Request element, This is little endian mode
+typedef	struct	_MEASUREMENT_REQUEST_ELEMENT	{
+	USHORT				Eid;
+	USHORT				Length;				// swap16 required
+	USHORT				Token;				// non-zero unique token
+	UCHAR				Mode;				// Measurement Mode
+	UCHAR				Type;				// Measurement type
+}	MEASUREMENT_REQUEST_ELEMENT, *PMEASUREMENT_REQUEST_ELEMENT;
+
+// Measurement Report element, This is little endian mode
+typedef	struct	_MEASUREMENT_REPORT_ELEMENT	{
+	USHORT				Eid;
+	USHORT				Length;				// swap16 required
+	USHORT				Token;				// non-zero unique token
+	UCHAR				Mode;				// Measurement Mode
+	UCHAR				Type;				// Measurement type
+}	MEASUREMENT_REPORT_ELEMENT, *PMEASUREMENT_REPORT_ELEMENT;
+
+// Cisco Aironet IAPP Frame Header, Network byte order used
+typedef	struct	_AIRONET_IAPP_HEADER {
+	UCHAR	CiscoSnapHeader[8];	// 8 bytes Cisco snap header
+	USHORT	Length;				// IAPP ID & length, remember to swap16 in LE system
+	UCHAR	Type;				// IAPP type
+	UCHAR	SubType;			// IAPP subtype
+	UCHAR	DA[6];				// Destination MAC address
+	UCHAR	SA[6];				// Source MAC address
+	USHORT	Token;				// Dialog token, no need to swap16 since it is for yoken usage only
+}	AIRONET_IAPP_HEADER, *PAIRONET_IAPP_HEADER;
+
+// Radio Measurement Request frame
+typedef	struct	_AIRONET_RM_REQUEST_FRAME	{
+    AIRONET_IAPP_HEADER	IAPP;			// Common header
+	UCHAR				Delay;			// Activation Delay
+	UCHAR				Offset;			// Measurement offset
+}	AIRONET_RM_REQUEST_FRAME, *PAIRONET_RM_REQUEST_FRAME;
+
+// Radio Measurement Report frame
+typedef	struct	_AIRONET_RM_REPORT_FRAME	{
+    AIRONET_IAPP_HEADER	IAPP;			// Common header
+}	AIRONET_RM_REPORT_FRAME, *PAIRONET_RM_REPORT_FRAME;
+
+// Saved element request actions which will saved in StaCfg.
+typedef	struct	_RM_REQUEST_ACTION	{
+	MEASUREMENT_REQUEST_ELEMENT	ReqElem;		// Saved request element
+	MEASUREMENT_REQUEST			Measurement;	// Saved measurement within the request element
+}	RM_REQUEST_ACTION, *PRM_REQUEST_ACTION;
+
+// CCX administration control
+typedef	union	_CCX_CONTROL	{
+	struct	{
+		UINT32		Enable:1;			// Enable CCX2
+		UINT32		LeapEnable:1;		// Enable LEAP at CCX2
+		UINT32		RMEnable:1;			// Radio Measurement Enable
+		UINT32		DCRMEnable:1;		// Non serving channel Radio Measurement enable
+		UINT32		QOSEnable:1;		// Enable QOS for CCX 2.0 support
+		UINT32		FastRoamEnable:1;	// Enable fast roaming
+		UINT32		Rsvd:2;				// Not used
+		UINT32		dBmToRoam:8;		// the condition to roam when receiving Rssi less than this value. It's negative value.
+		UINT32		TuLimit:16;			// Limit for different channel scan
+	}	field;
+	UINT32			word;
+}	CCX_CONTROL, *PCCX_CONTROL;
+
+#endif	// __AIRONET_H__

drivers/staging/rt2870/common/action.h

+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2007, 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.             *
+ *                                                                       *
+ *************************************************************************
+
+	Module Name:
+	aironet.h
+
+	Abstract:
+
+	Revision History:
+	Who			When			What
+	--------	----------		----------------------------------------------
+	Name		Date			Modification logs
+	Paul Lin	04-06-15		Initial
+*/
+
+#ifndef	__ACTION_H__
+#define	__ACTION_H__
+
+typedef struct PACKED __HT_INFO_OCTET
+{
+#ifdef RT_BIG_ENDIAN
+	UCHAR	Reserved:5;
+	UCHAR 	STA_Channel_Width:1;
+	UCHAR	Forty_MHz_Intolerant:1;
+	UCHAR	Request:1;
+#else
+	UCHAR	Request:1;
+	UCHAR	Forty_MHz_Intolerant:1;
+	UCHAR 	STA_Channel_Width:1;
+	UCHAR	Reserved:5;
+#endif
+} HT_INFORMATION_OCTET;
+
+
+typedef struct PACKED __FRAME_HT_INFO
+{
+	HEADER_802_11   		Hdr;
+	UCHAR					Category;
+	UCHAR					Action;
+	HT_INFORMATION_OCTET	HT_Info;
+}   FRAME_HT_INFO, *PFRAME_HT_INFO;
+
+#endif /* __ACTION_H__ */
+
+

drivers/staging/rt2870/dfs.h

+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2007, 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.             *
+ *                                                                       *
+ *************************************************************************
+
+    Module Name:
+    dfs.h
+
+    Abstract:
+    Support DFS function.
+
+    Revision History:
+    Who       When            What
+    --------  ----------      ----------------------------------------------
+    Fonchi    03-12-2007      created
+*/
+
+#define RADAR_PULSE 1
+#define RADAR_WIDTH 2
+
+#define WIDTH_RD_IDLE 0
+#define WIDTH_RD_CHECK 1
+
+
+VOID BbpRadarDetectionStart(
+	IN PRTMP_ADAPTER pAd);
+
+VOID BbpRadarDetectionStop(
+	IN PRTMP_ADAPTER pAd);
+
+VOID RadarDetectionStart(
+	IN PRTMP_ADAPTER pAd,
+	IN BOOLEAN CTS_Protect,
+	IN UINT8 CTSPeriod);
+
+VOID RadarDetectionStop(
+	IN PRTMP_ADAPTER	pAd);
+
+VOID RadarDetectPeriodic(
+	IN PRTMP_ADAPTER	pAd);
+
+
+BOOLEAN RadarChannelCheck(
+	IN PRTMP_ADAPTER	pAd,
+	IN UCHAR			Ch);
+
+ULONG JapRadarType(
+	IN PRTMP_ADAPTER pAd);
+
+ULONG RTMPBbpReadRadarDuration(
+	IN PRTMP_ADAPTER	pAd);
+
+ULONG RTMPReadRadarDuration(
+	IN PRTMP_ADAPTER	pAd);
+
+VOID RTMPCleanRadarDuration(
+	IN PRTMP_ADAPTER	pAd);
+
+VOID RTMPPrepareRDCTSFrame(
+	IN	PRTMP_ADAPTER	pAd,
+	IN	PUCHAR			pDA,
+	IN	ULONG			Duration,
+	IN  UCHAR           RTSRate,
+	IN  ULONG           CTSBaseAddr,
+	IN  UCHAR			FrameGap);
+
+VOID RTMPPrepareRadarDetectParams(
+	IN PRTMP_ADAPTER	pAd);
+
+
+INT Set_ChMovingTime_Proc(
+	IN PRTMP_ADAPTER pAd,
+	IN PUCHAR arg);
+
+INT Set_LongPulseRadarTh_Proc(
+	IN PRTMP_ADAPTER pAd,
+	IN PUCHAR arg);
+
+

drivers/staging/rt2870/sta_ioctl.c.patch

+--- sta_ioctl.c	2008-09-19 14:37:52.000000000 +0800
++++ sta_ioctl.c.fc9	2008-09-19 14:38:20.000000000 +0800
+@@ -49,15 +49,9 @@
+
+ #define GROUP_KEY_NO                4
+
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+ #define IWE_STREAM_ADD_EVENT(_A, _B, _C, _D, _E)		iwe_stream_add_event(_A, _B, _C, _D, _E)
+ #define IWE_STREAM_ADD_POINT(_A, _B, _C, _D, _E)		iwe_stream_add_point(_A, _B, _C, _D, _E)
+ #define IWE_STREAM_ADD_VALUE(_A, _B, _C, _D, _E, _F)	iwe_stream_add_value(_A, _B, _C, _D, _E, _F)
+-#else
+-#define IWE_STREAM_ADD_EVENT(_A, _B, _C, _D, _E)		iwe_stream_add_event(_B, _C, _D, _E)
+-#define IWE_STREAM_ADD_POINT(_A, _B, _C, _D, _E)		iwe_stream_add_point(_B, _C, _D, _E)
+-#define IWE_STREAM_ADD_VALUE(_A, _B, _C, _D, _E, _F)	iwe_stream_add_value(_B, _C, _D, _E, _F)
+-#endif
+
+ extern UCHAR    CipherWpa2Template[];
+ extern UCHAR    CipherWpaPskTkip[];