/* rtwlan.h
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*
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* This file is a rtnet adaption from ieee80211/ieee80211.h used by the
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* rt2x00-2.0.0-b3 sourceforge project
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*
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* Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
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* remains copyright by the original authors
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*
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* Portions of the merged code are based on Host AP (software wireless
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* LAN access point) driver for Intersil Prism2/2.5/3.
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*
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* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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* <jkmaline@cc.hut.fi>
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* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
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*
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* Adaption to a generic IEEE 802.11 stack by James Ketrenos
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* <jketreno@linux.intel.com>
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* Copyright (c) 2004-2005, Intel Corporation
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*
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* Adaption to rtnet
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* Copyright (c) 2006, Daniel Gregorek <dxg@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef RTWLAN_H
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#define RTWLAN_H
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#include <linux/if_ether.h> /* ETH_ALEN */
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#include <linux/kernel.h> /* ARRAY_SIZE */
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#include <rtskb.h>
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#include <rtwlan_io.h>
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#define IEEE80211_1ADDR_LEN 10
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#define IEEE80211_2ADDR_LEN 16
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#define IEEE80211_3ADDR_LEN 24
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#define IEEE80211_4ADDR_LEN 30
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#define IEEE80211_FCS_LEN 4
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#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
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#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
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#define MIN_FRAG_THRESHOLD 256U
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#define MAX_FRAG_THRESHOLD 2346U
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/* Frame control field constants */
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#define IEEE80211_FCTL_VERS 0x0003
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#define IEEE80211_FCTL_FTYPE 0x000c
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#define IEEE80211_FCTL_STYPE 0x00f0
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#define IEEE80211_FCTL_TODS 0x0100
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#define IEEE80211_FCTL_FROMDS 0x0200
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#define IEEE80211_FCTL_MOREFRAGS 0x0400
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#define IEEE80211_FCTL_RETRY 0x0800
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#define IEEE80211_FCTL_PM 0x1000
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#define IEEE80211_FCTL_MOREDATA 0x2000
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#define IEEE80211_FCTL_PROTECTED 0x4000
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#define IEEE80211_FCTL_ORDER 0x8000
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#define IEEE80211_FTYPE_MGMT 0x0000
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#define IEEE80211_FTYPE_CTL 0x0004
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#define IEEE80211_FTYPE_DATA 0x0008
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/* management */
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#define IEEE80211_STYPE_ASSOC_REQ 0x0000
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#define IEEE80211_STYPE_ASSOC_RESP 0x0010
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#define IEEE80211_STYPE_REASSOC_REQ 0x0020
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#define IEEE80211_STYPE_REASSOC_RESP 0x0030
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#define IEEE80211_STYPE_PROBE_REQ 0x0040
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#define IEEE80211_STYPE_PROBE_RESP 0x0050
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#define IEEE80211_STYPE_BEACON 0x0080
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#define IEEE80211_STYPE_ATIM 0x0090
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#define IEEE80211_STYPE_DISASSOC 0x00A0
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#define IEEE80211_STYPE_AUTH 0x00B0
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#define IEEE80211_STYPE_DEAUTH 0x00C0
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#define IEEE80211_STYPE_ACTION 0x00D0
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/* control */
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#define IEEE80211_STYPE_PSPOLL 0x00A0
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#define IEEE80211_STYPE_RTS 0x00B0
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#define IEEE80211_STYPE_CTS 0x00C0
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#define IEEE80211_STYPE_ACK 0x00D0
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#define IEEE80211_STYPE_CFEND 0x00E0
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#define IEEE80211_STYPE_CFENDACK 0x00F0
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/* data */
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#define IEEE80211_STYPE_DATA 0x0000
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#define IEEE80211_STYPE_DATA_CFACK 0x0010
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#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
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#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
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#define IEEE80211_STYPE_NULLFUNC 0x0040
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#define IEEE80211_STYPE_CFACK 0x0050
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#define IEEE80211_STYPE_CFPOLL 0x0060
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#define IEEE80211_STYPE_CFACKPOLL 0x0070
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#define IEEE80211_STYPE_QOS_DATA 0x0080
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#define RTWLAN_SCTL_SEQ 0xFFF0
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#define WLAN_FC_GET_VERS(fc) ((fc)&IEEE80211_FCTL_VERS)
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#define WLAN_FC_GET_TYPE(fc) ((fc)&IEEE80211_FCTL_FTYPE)
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#define WLAN_FC_GET_STYPE(fc) ((fc)&IEEE80211_FCTL_STYPE)
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#define IEEE80211_DSSS_RATE_1MB 0x02
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#define IEEE80211_DSSS_RATE_2MB 0x04
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#define IEEE80211_DSSS_RATE_5MB 0x0B
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#define IEEE80211_DSSS_RATE_11MB 0x16
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#define IEEE80211_OFDM_RATE_6MB 0x0C
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#define IEEE80211_OFDM_RATE_9MB 0x12
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#define IEEE80211_OFDM_RATE_12MB 0x18
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#define IEEE80211_OFDM_RATE_18MB 0x24
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#define IEEE80211_OFDM_RATE_24MB 0x30
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#define IEEE80211_OFDM_RATE_36MB 0x48
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#define IEEE80211_OFDM_RATE_48MB 0x60
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#define IEEE80211_OFDM_RATE_54MB 0x6C
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#define IEEE80211_BASIC_RATE_MASK 0x80
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#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
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#define MAC_ARG(x) \
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((u8 *)(x))[0], ((u8 *)(x))[1], ((u8 *)(x))[2], ((u8 *)(x))[3], \
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((u8 *)(x))[4], ((u8 *)(x))[5]
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#ifdef CONFIG_RTWLAN_DEBUG
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#define RTWLAN_DEBUG_PRINTK(__message...) \
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do { \
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rtdm_printk(__message); \
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} while (0)
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#define RTWLAN_DEBUG(__message, __args...) \
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RTWLAN_DEBUG_PRINTK(KERN_DEBUG "rtwlan->%s: Debug - " __message, \
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__FUNCTION__, ##__args);
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#else
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#define RTWLAN_DEBUG(__message...) \
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do { \
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} while (0)
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#endif
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struct rtwlan_stats {
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unsigned long rx_packets; /* total packets received */
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unsigned long tx_packets; /* total packets transmitted */
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unsigned long tx_retry; /* total packets transmitted with retry */
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};
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struct rtwlan_device {
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struct rtwlan_stats stats;
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struct rtskb_pool skb_pool;
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int mode;
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int (*hard_start_xmit)(struct rtskb *rtskb,
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struct rtnet_device *rtnet_dev);
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/* This must be the last item */
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u8 priv[0];
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};
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/* Minimal header; can be used for passing 802.11 frames with sufficient
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* information to determine what type of underlying data type is actually
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* stored in the data. */
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struct ieee80211_hdr {
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u16 frame_ctl;
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u16 duration_id;
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u8 payload[0];
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} __attribute__((packed));
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struct ieee80211_hdr_3addr {
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u16 frame_ctl;
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u16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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u16 seq_ctl;
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u8 payload[0];
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} __attribute__((packed));
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static inline int ieee80211_get_hdrlen(u16 fc)
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{
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int hdrlen = IEEE80211_3ADDR_LEN;
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u16 stype = WLAN_FC_GET_STYPE(fc);
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switch (WLAN_FC_GET_TYPE(fc)) {
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case IEEE80211_FTYPE_DATA:
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if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
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hdrlen = IEEE80211_4ADDR_LEN;
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if (stype & IEEE80211_STYPE_QOS_DATA)
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hdrlen += 2;
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break;
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case IEEE80211_FTYPE_CTL:
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switch (WLAN_FC_GET_STYPE(fc)) {
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case IEEE80211_STYPE_CTS:
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case IEEE80211_STYPE_ACK:
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hdrlen = IEEE80211_1ADDR_LEN;
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break;
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default:
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hdrlen = IEEE80211_2ADDR_LEN;
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break;
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}
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break;
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}
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return hdrlen;
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}
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static inline int ieee80211_is_ofdm_rate(u8 rate)
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{
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switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
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case IEEE80211_OFDM_RATE_6MB:
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case IEEE80211_OFDM_RATE_9MB:
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case IEEE80211_OFDM_RATE_12MB:
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case IEEE80211_OFDM_RATE_18MB:
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case IEEE80211_OFDM_RATE_24MB:
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case IEEE80211_OFDM_RATE_36MB:
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case IEEE80211_OFDM_RATE_48MB:
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case IEEE80211_OFDM_RATE_54MB:
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return 1;
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}
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return 0;
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}
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static inline int ieee80211_is_dsss_rate(u8 rate)
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{
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switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
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case IEEE80211_DSSS_RATE_1MB:
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case IEEE80211_DSSS_RATE_2MB:
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case IEEE80211_DSSS_RATE_5MB:
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case IEEE80211_DSSS_RATE_11MB:
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return 1;
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}
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return 0;
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}
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static inline void *rtwlan_priv(struct rtwlan_device *rtwlan_dev)
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{
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return (void *)rtwlan_dev + sizeof(struct rtwlan_device);
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}
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struct rtnet_device *rtwlan_alloc_dev(unsigned sizeof_priv,
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unsigned dev_pool_size);
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int rtwlan_rx(struct rtskb *rtskb, struct rtnet_device *rtnet_dev);
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int rtwlan_tx(struct rtskb *rtskb, struct rtnet_device *rtnet_dev);
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#ifdef CONFIG_XENO_DRIVERS_NET_RTWLAN
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int __init rtwlan_init(void);
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void rtwlan_exit(void);
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#else /* !CONFIG_XENO_DRIVERS_NET_RTWLAN */
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#define rtwlan_init() 0
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#define rtwlan_exit()
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#endif /* CONFIG_XENO_DRIVERS_NET_RTWLAN */
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#endif
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