Staging: add wlan-ng prism2 usb driver

This adds the wlan-ng prism2 USB driver to the drivers/staging tree.

The code was originally written by the linux-wlan-ng team, patched by
some Novell engineers to properly work on newer kernels, and then hacked
into place in order to get it to build properly in a single subdirectory
within the kernel tree by me.

It supports a wide range of older USB prism2 devices, and contains a
80211 stack to support this single driver.

Cc: Christian Zoz <zoz@suse.de>
Cc: Andreas Gruenbacher <agruen@suse.de>
Cc: linux-wireless <linux-wireless@vger.kernel.org>
Cc: John Linville <linville@tuxdriver.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: linux-wlan-ng <solomon@linux-wlan.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 299 insertions, 0 deletions

diff --git a/drivers/staging/wlan-ng/p80211hdr.h b/drivers/staging/wlan-ng/p80211hdr.h
new file mode 100644
index 000000000000..b7b0872fd861
--- /dev/null
+++ b/drivers/staging/wlan-ng/p80211hdr.h
@@ -0,0 +1,299 @@
+/* p80211hdr.h
+*
+* Macros, types, and functions for handling 802.11 MAC headers
+*
+* Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
+* --------------------------------------------------------------------
+*
+* linux-wlan
+*
+*   The contents of this file are subject to the Mozilla Public
+*   License Version 1.1 (the "License"); you may not use this file
+*   except in compliance with the License. You may obtain a copy of
+*   the License at http://www.mozilla.org/MPL/
+*
+*   Software distributed under the License is distributed on an "AS
+*   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+*   implied. See the License for the specific language governing
+*   rights and limitations under the License.
+*
+*   Alternatively, the contents of this file may be used under the
+*   terms of the GNU Public License version 2 (the "GPL"), in which
+*   case the provisions of the GPL are applicable instead of the
+*   above.  If you wish to allow the use of your version of this file
+*   only under the terms of the GPL and not to allow others to use
+*   your version of this file under the MPL, indicate your decision
+*   by deleting the provisions above and replace them with the notice
+*   and other provisions required by the GPL.  If you do not delete
+*   the provisions above, a recipient may use your version of this
+*   file under either the MPL or the GPL.
+*
+* --------------------------------------------------------------------
+*
+* Inquiries regarding the linux-wlan Open Source project can be
+* made directly to:
+*
+* AbsoluteValue Systems Inc.
+* info@linux-wlan.com
+* http://www.linux-wlan.com
+*
+* --------------------------------------------------------------------
+*
+* Portions of the development of this software were funded by
+* Intersil Corporation as part of PRISM(R) chipset product development.
+*
+* --------------------------------------------------------------------
+*
+* This file declares the constants and types used in the interface
+* between a wlan driver and the user mode utilities.
+*
+* Note:
+*  - Constant values are always in HOST byte order.  To assign
+*    values to multi-byte fields they _must_ be converted to
+*    ieee byte order.  To retrieve multi-byte values from incoming
+*    frames, they must be converted to host order.
+*
+* All functions declared here are implemented in p80211.c
+* --------------------------------------------------------------------
+*/
+
+#ifndef _P80211HDR_H
+#define _P80211HDR_H
+
+/*================================================================*/
+/* System Includes */
+
+/*================================================================*/
+/* Project Includes */
+
+#ifndef  _WLAN_COMPAT_H
+#include "wlan_compat.h"
+#endif
+
+
+/*================================================================*/
+/* Constants */
+
+/*--- Sizes -----------------------------------------------*/
+#define WLAN_ADDR_LEN			6
+#define WLAN_CRC_LEN			4
+#define WLAN_BSSID_LEN			6
+#define WLAN_BSS_TS_LEN			8
+#define WLAN_HDR_A3_LEN			24
+#define WLAN_HDR_A4_LEN			30
+#define WLAN_SSID_MAXLEN		32
+#define WLAN_DATA_MAXLEN		2312
+#define WLAN_A3FR_MAXLEN		(WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN)
+#define WLAN_A4FR_MAXLEN		(WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN)
+#define WLAN_BEACON_FR_MAXLEN		(WLAN_HDR_A3_LEN + 334)
+#define WLAN_ATIM_FR_MAXLEN		(WLAN_HDR_A3_LEN + 0)
+#define WLAN_DISASSOC_FR_MAXLEN		(WLAN_HDR_A3_LEN + 2)
+#define WLAN_ASSOCREQ_FR_MAXLEN		(WLAN_HDR_A3_LEN + 48)
+#define WLAN_ASSOCRESP_FR_MAXLEN	(WLAN_HDR_A3_LEN + 16)
+#define WLAN_REASSOCREQ_FR_MAXLEN	(WLAN_HDR_A3_LEN + 54)
+#define WLAN_REASSOCRESP_FR_MAXLEN	(WLAN_HDR_A3_LEN + 16)
+#define WLAN_PROBEREQ_FR_MAXLEN		(WLAN_HDR_A3_LEN + 44)
+#define WLAN_PROBERESP_FR_MAXLEN	(WLAN_HDR_A3_LEN + 78)
+#define WLAN_AUTHEN_FR_MAXLEN		(WLAN_HDR_A3_LEN + 261)
+#define WLAN_DEAUTHEN_FR_MAXLEN		(WLAN_HDR_A3_LEN + 2)
+#define WLAN_WEP_NKEYS			4
+#define WLAN_WEP_MAXKEYLEN		13
+#define WLAN_CHALLENGE_IE_LEN		130
+#define WLAN_CHALLENGE_LEN		128
+#define WLAN_WEP_IV_LEN			4
+#define WLAN_WEP_ICV_LEN		4
+
+/*--- Frame Control Field -------------------------------------*/
+/* Frame Types */
+#define WLAN_FTYPE_MGMT			0x00
+#define WLAN_FTYPE_CTL			0x01
+#define WLAN_FTYPE_DATA			0x02
+
+/* Frame subtypes */
+/* Management */
+#define WLAN_FSTYPE_ASSOCREQ		0x00
+#define WLAN_FSTYPE_ASSOCRESP		0x01
+#define WLAN_FSTYPE_REASSOCREQ		0x02
+#define WLAN_FSTYPE_REASSOCRESP		0x03
+#define WLAN_FSTYPE_PROBEREQ		0x04
+#define WLAN_FSTYPE_PROBERESP		0x05
+#define WLAN_FSTYPE_BEACON		0x08
+#define WLAN_FSTYPE_ATIM		0x09
+#define WLAN_FSTYPE_DISASSOC		0x0a
+#define WLAN_FSTYPE_AUTHEN		0x0b
+#define WLAN_FSTYPE_DEAUTHEN		0x0c
+
+/* Control */
+#define WLAN_FSTYPE_BLOCKACKREQ		0x8
+#define WLAN_FSTYPE_BLOCKACK  		0x9
+#define WLAN_FSTYPE_PSPOLL		0x0a
+#define WLAN_FSTYPE_RTS			0x0b
+#define WLAN_FSTYPE_CTS			0x0c
+#define WLAN_FSTYPE_ACK			0x0d
+#define WLAN_FSTYPE_CFEND		0x0e
+#define WLAN_FSTYPE_CFENDCFACK		0x0f
+
+/* Data */
+#define WLAN_FSTYPE_DATAONLY		0x00
+#define WLAN_FSTYPE_DATA_CFACK		0x01
+#define WLAN_FSTYPE_DATA_CFPOLL		0x02
+#define WLAN_FSTYPE_DATA_CFACK_CFPOLL	0x03
+#define WLAN_FSTYPE_NULL		0x04
+#define WLAN_FSTYPE_CFACK		0x05
+#define WLAN_FSTYPE_CFPOLL		0x06
+#define WLAN_FSTYPE_CFACK_CFPOLL	0x07
+
+
+/*================================================================*/
+/* Macros */
+
+/*--- FC Macros ----------------------------------------------*/
+/* Macros to get/set the bitfields of the Frame Control Field */
+/*  GET_FC_??? - takes the host byte-order value of an FC     */
+/*               and retrieves the value of one of the        */
+/*               bitfields and moves that value so its lsb is */
+/*               in bit 0.                                    */
+/*  SET_FC_??? - takes a host order value for one of the FC   */
+/*               bitfields and moves it to the proper bit     */
+/*               location for ORing into a host order FC.     */
+/*               To send the FC produced from SET_FC_???,     */
+/*               one must put the bytes in IEEE order.        */
+/*  e.g.                                                      */
+/*     printf("the frame subtype is %x",                      */
+/*                 GET_FC_FTYPE( ieee2host( rx.fc )))         */
+/*                                                            */
+/*     tx.fc = host2ieee( SET_FC_FTYPE(WLAN_FTYP_CTL) |       */
+/*                        SET_FC_FSTYPE(WLAN_FSTYPE_RTS) );   */
+/*------------------------------------------------------------*/
+
+#define WLAN_GET_FC_PVER(n)	 (((UINT16)(n)) & (BIT0 | BIT1))
+#define WLAN_GET_FC_FTYPE(n)	((((UINT16)(n)) & (BIT2 | BIT3)) >> 2)
+#define WLAN_GET_FC_FSTYPE(n)	((((UINT16)(n)) & (BIT4|BIT5|BIT6|BIT7)) >> 4)
+#define WLAN_GET_FC_TODS(n) 	((((UINT16)(n)) & (BIT8)) >> 8)
+#define WLAN_GET_FC_FROMDS(n)	((((UINT16)(n)) & (BIT9)) >> 9)
+#define WLAN_GET_FC_MOREFRAG(n) ((((UINT16)(n)) & (BIT10)) >> 10)
+#define WLAN_GET_FC_RETRY(n)	((((UINT16)(n)) & (BIT11)) >> 11)
+#define WLAN_GET_FC_PWRMGT(n)	((((UINT16)(n)) & (BIT12)) >> 12)
+#define WLAN_GET_FC_MOREDATA(n) ((((UINT16)(n)) & (BIT13)) >> 13)
+#define WLAN_GET_FC_ISWEP(n)	((((UINT16)(n)) & (BIT14)) >> 14)
+#define WLAN_GET_FC_ORDER(n)	((((UINT16)(n)) & (BIT15)) >> 15)
+
+#define WLAN_SET_FC_PVER(n)	((UINT16)(n))
+#define WLAN_SET_FC_FTYPE(n)	(((UINT16)(n)) << 2)
+#define WLAN_SET_FC_FSTYPE(n)	(((UINT16)(n)) << 4)
+#define WLAN_SET_FC_TODS(n) 	(((UINT16)(n)) << 8)
+#define WLAN_SET_FC_FROMDS(n)	(((UINT16)(n)) << 9)
+#define WLAN_SET_FC_MOREFRAG(n) (((UINT16)(n)) << 10)
+#define WLAN_SET_FC_RETRY(n)	(((UINT16)(n)) << 11)
+#define WLAN_SET_FC_PWRMGT(n)	(((UINT16)(n)) << 12)
+#define WLAN_SET_FC_MOREDATA(n) (((UINT16)(n)) << 13)
+#define WLAN_SET_FC_ISWEP(n)	(((UINT16)(n)) << 14)
+#define WLAN_SET_FC_ORDER(n)	(((UINT16)(n)) << 15)
+
+/*--- Duration Macros ----------------------------------------*/
+/* Macros to get/set the bitfields of the Duration Field      */
+/*  - the duration value is only valid when bit15 is zero     */
+/*  - the firmware handles these values, so I'm not going     */
+/*    these macros right now.                                 */
+/*------------------------------------------------------------*/
+
+/*--- Sequence Control  Macros -------------------------------*/
+/* Macros to get/set the bitfields of the Sequence Control    */
+/* Field.                                                     */
+/*------------------------------------------------------------*/
+#define WLAN_GET_SEQ_FRGNUM(n) (((UINT16)(n)) & (BIT0|BIT1|BIT2|BIT3))
+#define WLAN_GET_SEQ_SEQNUM(n) ((((UINT16)(n)) & (~(BIT0|BIT1|BIT2|BIT3))) >> 4)
+
+/*--- Data ptr macro -----------------------------------------*/
+/* Creates a UINT8* to the data portion of a frame            */
+/* Assumes you're passing in a ptr to the beginning of the hdr*/
+/*------------------------------------------------------------*/
+#define WLAN_HDR_A3_DATAP(p) (((UINT8*)(p)) + WLAN_HDR_A3_LEN)
+#define WLAN_HDR_A4_DATAP(p) (((UINT8*)(p)) + WLAN_HDR_A4_LEN)
+
+#define DOT11_RATE5_ISBASIC_GET(r)     (((UINT8)(r)) & BIT7)
+
+/*================================================================*/
+/* Types */
+
+/* BSS Timestamp */
+typedef UINT8 wlan_bss_ts_t[WLAN_BSS_TS_LEN];
+
+/* Generic 802.11 Header types */
+
+typedef struct p80211_hdr_a3
+{
+	UINT16	fc;
+	UINT16	dur;
+	UINT8	a1[WLAN_ADDR_LEN];
+	UINT8	a2[WLAN_ADDR_LEN];
+	UINT8	a3[WLAN_ADDR_LEN];
+	UINT16	seq;
+} __WLAN_ATTRIB_PACK__ p80211_hdr_a3_t;
+
+typedef struct p80211_hdr_a4
+{
+	UINT16	fc;
+	UINT16	dur;
+	UINT8	a1[WLAN_ADDR_LEN];
+	UINT8	a2[WLAN_ADDR_LEN];
+	UINT8	a3[WLAN_ADDR_LEN];
+	UINT16	seq;
+	UINT8	a4[WLAN_ADDR_LEN];
+} __WLAN_ATTRIB_PACK__ p80211_hdr_a4_t;
+
+typedef union p80211_hdr
+{
+	p80211_hdr_a3_t		a3;
+	p80211_hdr_a4_t		a4;
+} __WLAN_ATTRIB_PACK__ p80211_hdr_t;
+
+
+/*================================================================*/
+/* Extern Declarations */
+
+
+/*================================================================*/
+/* Function Declarations */
+
+/* Frame and header lenght macros */
+
+#define WLAN_CTL_FRAMELEN(fstype) (\
+	(fstype) == WLAN_FSTYPE_BLOCKACKREQ	? 24 : \
+	(fstype) == WLAN_FSTYPE_BLOCKACK   	? 152 : \
+	(fstype) == WLAN_FSTYPE_PSPOLL		? 20 : \
+	(fstype) == WLAN_FSTYPE_RTS		? 20 : \
+	(fstype) == WLAN_FSTYPE_CTS		? 14 : \
+	(fstype) == WLAN_FSTYPE_ACK		? 14 : \
+	(fstype) == WLAN_FSTYPE_CFEND		? 20 : \
+	(fstype) == WLAN_FSTYPE_CFENDCFACK	? 20 : 4)
+
+#define WLAN_FCS_LEN			4
+
+/* ftcl in HOST order */
+inline static UINT16 p80211_headerlen(UINT16 fctl)
+{
+	UINT16 hdrlen = 0;
+
+	switch ( WLAN_GET_FC_FTYPE(fctl) ) {
+	case WLAN_FTYPE_MGMT:
+		hdrlen = WLAN_HDR_A3_LEN;
+		break;
+	case WLAN_FTYPE_DATA:
+		hdrlen = WLAN_HDR_A3_LEN;
+		if ( WLAN_GET_FC_TODS(fctl) && WLAN_GET_FC_FROMDS(fctl) ) {
+			hdrlen += WLAN_ADDR_LEN;
+		}
+		break;
+	case WLAN_FTYPE_CTL:
+		hdrlen = WLAN_CTL_FRAMELEN(WLAN_GET_FC_FSTYPE(fctl)) -
+			WLAN_FCS_LEN;
+		break;
+	default:
+		hdrlen = WLAN_HDR_A3_LEN;
+	}
+
+	return hdrlen;
+}
+
+#endif /* _P80211HDR_H */