1 /*
2  * Merged with mainline rtllib.h in Aug 2004.  Original ieee802_11
3  * remains copyright by the original authors
4  *
5  * Portions of the merged code are based on Host AP (software wireless
6  * LAN access point) driver for Intersil Prism2/2.5/3.
7  *
8  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9  * <jkmaline@cc.hut.fi>
10  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
11  *
12  * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13  * <jketreno@linux.intel.com>
14  * Copyright (c) 2004, Intel Corporation
15  *
16  * Modified for Realtek's wi-fi cards by Andrea Merello
17  * <andrea.merello@gmail.com>
18  *
19  * This program is free software; you can redistribute it and/or modify
20  * it under the terms of the GNU General Public License version 2 as
21  * published by the Free Software Foundation. See README and COPYING for
22  * more details.
23  */
24 #ifndef RTLLIB_H
25 #define RTLLIB_H
26 #include <linux/if_ether.h> /* ETH_ALEN */
27 #include <linux/kernel.h>   /* ARRAY_SIZE */
28 #include <linux/module.h>
29 #include <linux/interrupt.h>
30 #include <linux/jiffies.h>
31 #include <linux/timer.h>
32 #include <linux/sched.h>
33 #include <linux/semaphore.h>
34 
35 #include <linux/delay.h>
36 #include <linux/wireless.h>
37 
38 #include "rtllib_debug.h"
39 #include "rtl819x_HT.h"
40 #include "rtl819x_BA.h"
41 #include "rtl819x_TS.h"
42 
43 #include <linux/netdevice.h>
44 #include <linux/if_arp.h> /* ARPHRD_ETHER */
45 #include <net/lib80211.h>
46 
47 #define MAX_PRECMD_CNT 16
48 #define MAX_RFDEPENDCMD_CNT 16
49 #define MAX_POSTCMD_CNT 16
50 
51 #ifndef WIRELESS_SPY
52 #define WIRELESS_SPY
53 #endif
54 #include <net/iw_handler.h>
55 
56 #ifndef IW_MODE_MONITOR
57 #define IW_MODE_MONITOR 6
58 #endif
59 
60 #ifndef IWEVCUSTOM
61 #define IWEVCUSTOM 0x8c02
62 #endif
63 
64 #ifndef IW_CUSTOM_MAX
65 /* Max number of char in custom event - use multiple of them if needed */
66 #define IW_CUSTOM_MAX	256	/* In bytes */
67 #endif
68 
69 #define skb_tail_pointer_rsl(skb) skb_tail_pointer(skb)
70 
71 #define queue_delayed_work_rsl(x, y, z) queue_delayed_work(x, y, z)
72 #define INIT_DELAYED_WORK_RSL(x, y, z) INIT_DELAYED_WORK(x, y)
73 
74 #define queue_work_rsl(x, y) queue_work(x, y)
75 #define INIT_WORK_RSL(x, y, z) INIT_WORK(x, y)
76 
77 #define container_of_work_rsl(x, y, z) container_of(x, y, z)
78 #define container_of_dwork_rsl(x, y, z)				\
79 	container_of(to_delayed_work(x), y, z)
80 
81 #define iwe_stream_add_event_rsl(info, start, stop, iwe, len)	\
82 	iwe_stream_add_event(info, start, stop, iwe, len)
83 
84 #define iwe_stream_add_point_rsl(info, start, stop, iwe, p)	\
85 	iwe_stream_add_point(info, start, stop, iwe, p)
86 
87 static inline void *netdev_priv_rsl(struct net_device *dev)
88 {
89 	return netdev_priv(dev);
90 }
91 
92 #define KEY_TYPE_NA		0x0
93 #define KEY_TYPE_WEP40		0x1
94 #define KEY_TYPE_TKIP		0x2
95 #define KEY_TYPE_CCMP		0x4
96 #define KEY_TYPE_WEP104		0x5
97 /* added for rtl819x tx procedure */
98 #define MAX_QUEUE_SIZE		0x10
99 
100 #define BK_QUEUE			       0
101 #define BE_QUEUE			       1
102 #define VI_QUEUE			       2
103 #define VO_QUEUE			       3
104 #define HCCA_QUEUE			     4
105 #define TXCMD_QUEUE			    5
106 #define MGNT_QUEUE			     6
107 #define HIGH_QUEUE			     7
108 #define BEACON_QUEUE			   8
109 
110 #ifndef IW_MODE_MESH
111 #define IW_MODE_MESH			7
112 #endif
113 
114 #define IE_CISCO_FLAG_POSITION		0x08
115 #define SUPPORT_CKIP_MIC			0x08
116 #define SUPPORT_CKIP_PK			0x10
117 #define	RT_RF_OFF_LEVL_HALT_NIC		BIT3
118 #define	RT_IN_PS_LEVEL(pPSC, _PS_FLAG)		\
119 	((pPSC->CurPsLevel & _PS_FLAG) ? true : false)
120 #define	RT_CLEAR_PS_LEVEL(pPSC, _PS_FLAG)	\
121 	(pPSC->CurPsLevel &= (~(_PS_FLAG)))
122 #define	RT_SET_PS_LEVEL(pPSC, _PS_FLAG)	(pPSC->CurPsLevel |= _PS_FLAG)
123 
124 /* defined for skb cb field */
125 /* At most 28 byte */
126 struct cb_desc {
127 	/* Tx Desc Related flags (8-9) */
128 	u8 bLastIniPkt:1;
129 	u8 bCmdOrInit:1;
130 	u8 bFirstSeg:1;
131 	u8 bLastSeg:1;
132 	u8 bEncrypt:1;
133 	u8 bTxDisableRateFallBack:1;
134 	u8 bTxUseDriverAssingedRate:1;
135 	u8 bHwSec:1;
136 
137 	u8 nStuckCount;
138 
139 	/* Tx Firmware Related flags (10-11)*/
140 	u8 bCTSEnable:1;
141 	u8 bRTSEnable:1;
142 	u8 bUseShortGI:1;
143 	u8 bUseShortPreamble:1;
144 	u8 bTxEnableFwCalcDur:1;
145 	u8 bAMPDUEnable:1;
146 	u8 bRTSSTBC:1;
147 	u8 RTSSC:1;
148 
149 	u8 bRTSBW:1;
150 	u8 bPacketBW:1;
151 	u8 bRTSUseShortPreamble:1;
152 	u8 bRTSUseShortGI:1;
153 	u8 bMulticast:1;
154 	u8 bBroadcast:1;
155 	u8 drv_agg_enable:1;
156 	u8 reserved2:1;
157 
158 	/* Tx Desc related element(12-19) */
159 	u8 rata_index;
160 	u8 queue_index;
161 	u16 txbuf_size;
162 	u8 RATRIndex;
163 	u8 bAMSDU:1;
164 	u8 bFromAggrQ:1;
165 	u8 reserved6:6;
166 	u8 macId;
167 	u8 priority;
168 
169 	/* Tx firmware related element(20-27) */
170 	u8 data_rate;
171 	u8 rts_rate;
172 	u8 ampdu_factor;
173 	u8 ampdu_density;
174 	u8 DrvAggrNum;
175 	u8 bdhcp;
176 	u16 pkt_size;
177 	u8 bIsSpecialDataFrame;
178 
179 	u8 bBTTxPacket;
180 	u8 bIsBTProbRsp;
181 };
182 
183 enum sw_chnl_cmd_id {
184 	CmdID_End,
185 	CmdID_SetTxPowerLevel,
186 	CmdID_BBRegWrite10,
187 	CmdID_WritePortUlong,
188 	CmdID_WritePortUshort,
189 	CmdID_WritePortUchar,
190 	CmdID_RF_WriteReg,
191 };
192 
193 struct sw_chnl_cmd {
194 	enum sw_chnl_cmd_id CmdID;
195 	u32			Para1;
196 	u32			Para2;
197 	u32			msDelay;
198 } __packed;
199 
200 /*--------------------------Define -------------------------------------------*/
201 #define MGN_1M		  0x02
202 #define MGN_2M		  0x04
203 #define MGN_5_5M		0x0b
204 #define MGN_11M		 0x16
205 
206 #define MGN_6M		  0x0c
207 #define MGN_9M		  0x12
208 #define MGN_12M		 0x18
209 #define MGN_18M		 0x24
210 #define MGN_24M		 0x30
211 #define MGN_36M		 0x48
212 #define MGN_48M		 0x60
213 #define MGN_54M		 0x6c
214 
215 #define MGN_MCS0		0x80
216 #define MGN_MCS1		0x81
217 #define MGN_MCS2		0x82
218 #define MGN_MCS3		0x83
219 #define MGN_MCS4		0x84
220 #define MGN_MCS5		0x85
221 #define MGN_MCS6		0x86
222 #define MGN_MCS7		0x87
223 #define MGN_MCS8		0x88
224 #define MGN_MCS9		0x89
225 #define MGN_MCS10	       0x8a
226 #define MGN_MCS11	       0x8b
227 #define MGN_MCS12	       0x8c
228 #define MGN_MCS13	       0x8d
229 #define MGN_MCS14	       0x8e
230 #define MGN_MCS15	       0x8f
231 
232 enum hw_variables {
233 	HW_VAR_ETHER_ADDR,
234 	HW_VAR_MULTICAST_REG,
235 	HW_VAR_BASIC_RATE,
236 	HW_VAR_BSSID,
237 	HW_VAR_MEDIA_STATUS,
238 	HW_VAR_SECURITY_CONF,
239 	HW_VAR_BEACON_INTERVAL,
240 	HW_VAR_ATIM_WINDOW,
241 	HW_VAR_LISTEN_INTERVAL,
242 	HW_VAR_CS_COUNTER,
243 	HW_VAR_DEFAULTKEY0,
244 	HW_VAR_DEFAULTKEY1,
245 	HW_VAR_DEFAULTKEY2,
246 	HW_VAR_DEFAULTKEY3,
247 	HW_VAR_SIFS,
248 	HW_VAR_DIFS,
249 	HW_VAR_EIFS,
250 	HW_VAR_SLOT_TIME,
251 	HW_VAR_ACK_PREAMBLE,
252 	HW_VAR_CW_CONFIG,
253 	HW_VAR_CW_VALUES,
254 	HW_VAR_RATE_FALLBACK_CONTROL,
255 	HW_VAR_CONTENTION_WINDOW,
256 	HW_VAR_RETRY_COUNT,
257 	HW_VAR_TR_SWITCH,
258 	HW_VAR_COMMAND,
259 	HW_VAR_WPA_CONFIG,
260 	HW_VAR_AMPDU_MIN_SPACE,
261 	HW_VAR_SHORTGI_DENSITY,
262 	HW_VAR_AMPDU_FACTOR,
263 	HW_VAR_MCS_RATE_AVAILABLE,
264 	HW_VAR_AC_PARAM,
265 	HW_VAR_ACM_CTRL,
266 	HW_VAR_DIS_Req_Qsize,
267 	HW_VAR_CCX_CHNL_LOAD,
268 	HW_VAR_CCX_NOISE_HISTOGRAM,
269 	HW_VAR_CCX_CLM_NHM,
270 	HW_VAR_TxOPLimit,
271 	HW_VAR_TURBO_MODE,
272 	HW_VAR_RF_STATE,
273 	HW_VAR_RF_OFF_BY_HW,
274 	HW_VAR_BUS_SPEED,
275 	HW_VAR_SET_DEV_POWER,
276 
277 	HW_VAR_RCR,
278 	HW_VAR_RATR_0,
279 	HW_VAR_RRSR,
280 	HW_VAR_CPU_RST,
281 	HW_VAR_CECHK_BSSID,
282 	HW_VAR_LBK_MODE,
283 	HW_VAR_AES_11N_FIX,
284 	HW_VAR_USB_RX_AGGR,
285 	HW_VAR_USER_CONTROL_TURBO_MODE,
286 	HW_VAR_RETRY_LIMIT,
287 	HW_VAR_INIT_TX_RATE,
288 	HW_VAR_TX_RATE_REG,
289 	HW_VAR_EFUSE_USAGE,
290 	HW_VAR_EFUSE_BYTES,
291 	HW_VAR_AUTOLOAD_STATUS,
292 	HW_VAR_RF_2R_DISABLE,
293 	HW_VAR_SET_RPWM,
294 	HW_VAR_H2C_FW_PWRMODE,
295 	HW_VAR_H2C_FW_JOINBSSRPT,
296 	HW_VAR_1X1_RECV_COMBINE,
297 	HW_VAR_STOP_SEND_BEACON,
298 	HW_VAR_TSF_TIMER,
299 	HW_VAR_IO_CMD,
300 
301 	HW_VAR_RF_RECOVERY,
302 	HW_VAR_H2C_FW_UPDATE_GTK,
303 	HW_VAR_WF_MASK,
304 	HW_VAR_WF_CRC,
305 	HW_VAR_WF_IS_MAC_ADDR,
306 	HW_VAR_H2C_FW_OFFLOAD,
307 	HW_VAR_RESET_WFCRC,
308 
309 	HW_VAR_HANDLE_FW_C2H,
310 	HW_VAR_DL_FW_RSVD_PAGE,
311 	HW_VAR_AID,
312 	HW_VAR_HW_SEQ_ENABLE,
313 	HW_VAR_CORRECT_TSF,
314 	HW_VAR_BCN_VALID,
315 	HW_VAR_FWLPS_RF_ON,
316 	HW_VAR_DUAL_TSF_RST,
317 	HW_VAR_SWITCH_EPHY_WoWLAN,
318 	HW_VAR_INT_MIGRATION,
319 	HW_VAR_INT_AC,
320 	HW_VAR_RF_TIMING,
321 };
322 
323 enum rt_op_mode {
324 	RT_OP_MODE_AP,
325 	RT_OP_MODE_INFRASTRUCTURE,
326 	RT_OP_MODE_IBSS,
327 	RT_OP_MODE_NO_LINK,
328 };
329 
330 
331 #define aSifsTime						\
332 	 (((priv->rtllib->current_network.mode == IEEE_A)	\
333 	|| (priv->rtllib->current_network.mode == IEEE_N_24G)	\
334 	|| (priv->rtllib->current_network.mode == IEEE_N_5G)) ? 16 : 10)
335 
336 #define MGMT_QUEUE_NUM 5
337 
338 #define IEEE_CMD_SET_WPA_PARAM			1
339 #define	IEEE_CMD_SET_WPA_IE			2
340 #define IEEE_CMD_SET_ENCRYPTION			3
341 #define IEEE_CMD_MLME				4
342 
343 #define IEEE_PARAM_WPA_ENABLED			1
344 #define IEEE_PARAM_TKIP_COUNTERMEASURES		2
345 #define IEEE_PARAM_DROP_UNENCRYPTED		3
346 #define IEEE_PARAM_PRIVACY_INVOKED		4
347 #define IEEE_PARAM_AUTH_ALGS			5
348 #define IEEE_PARAM_IEEE_802_1X			6
349 #define IEEE_PARAM_WPAX_SELECT			7
350 
351 #define IEEE_MLME_STA_DEAUTH			1
352 #define IEEE_MLME_STA_DISASSOC			2
353 
354 
355 #define IEEE_CRYPT_ERR_UNKNOWN_ALG		2
356 #define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED	4
357 #define IEEE_CRYPT_ERR_KEY_SET_FAILED		5
358 #define IEEE_CRYPT_ERR_CARD_CONF_FAILED		7
359 #define	IEEE_CRYPT_ALG_NAME_LEN			16
360 
361 #define MAX_IE_LEN  0xff
362 
363 struct ieee_param {
364 	u32 cmd;
365 	u8 sta_addr[ETH_ALEN];
366 	union {
367 		struct {
368 			u8 name;
369 			u32 value;
370 		} wpa_param;
371 		struct {
372 			u32 len;
373 			u8 reserved[32];
374 			u8 data[0];
375 		} wpa_ie;
376 		struct {
377 			int command;
378 			int reason_code;
379 		} mlme;
380 		struct {
381 			u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
382 			u8 set_tx;
383 			u32 err;
384 			u8 idx;
385 			u8 seq[8]; /* sequence counter (set: RX, get: TX) */
386 			u16 key_len;
387 			u8 key[0];
388 		} crypt;
389 	} u;
390 };
391 
392 #define msleep_interruptible_rsl  msleep_interruptible
393 
394 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
395  * 6.2.1.1.2.
396  *
397  * The figure in section 7.1.2 suggests a body size of up to 2312
398  * bytes is allowed, which is a bit confusing, I suspect this
399  * represents the 2304 bytes of real data, plus a possible 8 bytes of
400  * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
401  */
402 #define RTLLIB_1ADDR_LEN 10
403 #define RTLLIB_2ADDR_LEN 16
404 #define RTLLIB_3ADDR_LEN 24
405 #define RTLLIB_4ADDR_LEN 30
406 #define RTLLIB_FCS_LEN    4
407 
408 #define RTLLIB_SKBBUFFER_SIZE 2500
409 
410 #define MIN_FRAG_THRESHOLD     256U
411 #define MAX_FRAG_THRESHOLD     2346U
412 
413 /* Frame control field constants */
414 #define RTLLIB_FCTL_FTYPE		0x000c
415 #define RTLLIB_FCTL_STYPE		0x00f0
416 #define RTLLIB_FCTL_FRAMETYPE	0x00fc
417 #define RTLLIB_FCTL_TODS		0x0100
418 #define RTLLIB_FCTL_FROMDS		0x0200
419 #define RTLLIB_FCTL_DSTODS		0x0300
420 #define RTLLIB_FCTL_MOREFRAGS	0x0400
421 #define RTLLIB_FCTL_RETRY		0x0800
422 #define RTLLIB_FCTL_PM		0x1000
423 #define RTLLIB_FCTL_MOREDATA		0x2000
424 #define RTLLIB_FCTL_WEP		0x4000
425 #define RTLLIB_FCTL_ORDER		0x8000
426 
427 #define RTLLIB_FTYPE_MGMT		0x0000
428 #define RTLLIB_FTYPE_CTL		0x0004
429 #define RTLLIB_FTYPE_DATA		0x0008
430 
431 /* management */
432 #define RTLLIB_STYPE_ASSOC_REQ	0x0000
433 #define RTLLIB_STYPE_ASSOC_RESP		0x0010
434 #define RTLLIB_STYPE_REASSOC_REQ	0x0020
435 #define RTLLIB_STYPE_REASSOC_RESP	0x0030
436 #define RTLLIB_STYPE_PROBE_REQ	0x0040
437 #define RTLLIB_STYPE_PROBE_RESP	0x0050
438 #define RTLLIB_STYPE_BEACON		0x0080
439 #define RTLLIB_STYPE_ATIM		0x0090
440 #define RTLLIB_STYPE_DISASSOC	0x00A0
441 #define RTLLIB_STYPE_AUTH		0x00B0
442 #define RTLLIB_STYPE_DEAUTH		0x00C0
443 #define RTLLIB_STYPE_MANAGE_ACT	0x00D0
444 
445 /* control */
446 #define RTLLIB_STYPE_PSPOLL		0x00A0
447 #define RTLLIB_STYPE_RTS		0x00B0
448 #define RTLLIB_STYPE_CTS		0x00C0
449 #define RTLLIB_STYPE_ACK		0x00D0
450 
451 /* data */
452 #define RTLLIB_STYPE_DATA		0x0000
453 #define RTLLIB_STYPE_DATA_CFACK	0x0010
454 #define RTLLIB_STYPE_DATA_CFPOLL	0x0020
455 #define RTLLIB_STYPE_DATA_CFACKPOLL	0x0030
456 #define RTLLIB_STYPE_NULLFUNC	0x0040
457 #define RTLLIB_STYPE_QOS_DATA	0x0080
458 #define RTLLIB_STYPE_QOS_NULL	0x00C0
459 
460 #define RTLLIB_SCTL_FRAG		0x000F
461 #define RTLLIB_SCTL_SEQ		0xFFF0
462 
463 /* QOS control */
464 #define RTLLIB_QCTL_TID	      0x000F
465 
466 #define	FC_QOS_BIT					BIT7
467 #define IsDataFrame(pdu)	(((pdu[0] & 0x0C) == 0x08) ? true : false)
468 #define	IsLegacyDataFrame(pdu)	(IsDataFrame(pdu) && (!(pdu[0]&FC_QOS_BIT)))
469 #define IsQoSDataFrame(pframe)			\
470 	((*(u16 *)pframe&(RTLLIB_STYPE_QOS_DATA|RTLLIB_FTYPE_DATA)) ==	\
471 	(RTLLIB_STYPE_QOS_DATA|RTLLIB_FTYPE_DATA))
472 #define Frame_Order(pframe)     (*(u16 *)pframe&RTLLIB_FCTL_ORDER)
473 #define SN_LESS(a, b)		(((a-b)&0x800) != 0)
474 #define SN_EQUAL(a, b)	(a == b)
475 #define MAX_DEV_ADDR_SIZE 8
476 
477 enum act_category {
478 	ACT_CAT_QOS = 1,
479 	ACT_CAT_DLS = 2,
480 	ACT_CAT_BA  = 3,
481 	ACT_CAT_HT  = 7,
482 	ACT_CAT_WMM = 17,
483 };
484 
485 enum ba_action {
486 	ACT_ADDBAREQ = 0,
487 	ACT_ADDBARSP = 1,
488 	ACT_DELBA    = 2,
489 };
490 
491 enum init_gain_op_type {
492 	IG_Backup = 0,
493 	IG_Restore,
494 	IG_Max
495 };
496 
497 enum led_ctl_mode {
498 	LED_CTL_POWER_ON = 1,
499 	LED_CTL_LINK = 2,
500 	LED_CTL_NO_LINK = 3,
501 	LED_CTL_TX = 4,
502 	LED_CTL_RX = 5,
503 	LED_CTL_SITE_SURVEY = 6,
504 	LED_CTL_POWER_OFF = 7,
505 	LED_CTL_START_TO_LINK = 8,
506 };
507 
508 enum rt_rf_type_def {
509 	RF_1T2R = 0,
510 	RF_2T4R,
511 };
512 
513 enum wireless_mode {
514 	WIRELESS_MODE_UNKNOWN = 0x00,
515 	WIRELESS_MODE_A = 0x01,
516 	WIRELESS_MODE_B = 0x02,
517 	WIRELESS_MODE_G = 0x04,
518 	WIRELESS_MODE_AUTO = 0x08,
519 	WIRELESS_MODE_N_24G = 0x10,
520 	WIRELESS_MODE_N_5G = 0x20
521 };
522 
523 #ifndef ETH_P_PAE
524 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
525 #define ETH_P_IP	0x0800		/* Internet Protocol packet	*/
526 #define ETH_P_ARP	0x0806		/* Address Resolution packet	*/
527 #endif /* ETH_P_PAE */
528 
529 #ifndef ETH_P_80211_RAW
530 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
531 #endif
532 
533 /* IEEE 802.11 defines */
534 
535 #define P80211_OUI_LEN 3
536 
537 struct rtllib_snap_hdr {
538 
539 	u8    dsap;   /* always 0xAA */
540 	u8    ssap;   /* always 0xAA */
541 	u8    ctrl;   /* always 0x03 */
542 	u8    oui[P80211_OUI_LEN];    /* organizational universal id */
543 
544 } __packed;
545 
546 enum _REG_PREAMBLE_MODE {
547 	PREAMBLE_LONG = 1,
548 	PREAMBLE_AUTO = 2,
549 	PREAMBLE_SHORT = 3,
550 };
551 
552 #define SNAP_SIZE sizeof(struct rtllib_snap_hdr)
553 
554 #define WLAN_FC_GET_TYPE(fc) ((fc) & RTLLIB_FCTL_FTYPE)
555 #define WLAN_FC_GET_STYPE(fc) ((fc) & RTLLIB_FCTL_STYPE)
556 #define WLAN_FC_MORE_DATA(fc) ((fc) & RTLLIB_FCTL_MOREDATA)
557 
558 #define WLAN_FC_GET_FRAMETYPE(fc) ((fc) & RTLLIB_FCTL_FRAMETYPE)
559 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & RTLLIB_SCTL_FRAG)
560 #define WLAN_GET_SEQ_SEQ(seq)  (((seq) & RTLLIB_SCTL_SEQ) >> 4)
561 
562 /* Authentication algorithms */
563 #define WLAN_AUTH_OPEN 0
564 #define WLAN_AUTH_SHARED_KEY 1
565 #define WLAN_AUTH_LEAP 128
566 
567 #define WLAN_CAPABILITY_ESS (1<<0)
568 #define WLAN_CAPABILITY_IBSS (1<<1)
569 #define WLAN_CAPABILITY_PRIVACY (1<<4)
570 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
571 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
572 
573 #define RTLLIB_STATMASK_SIGNAL (1<<0)
574 #define RTLLIB_STATMASK_RSSI (1<<1)
575 #define RTLLIB_STATMASK_NOISE (1<<2)
576 #define RTLLIB_STATMASK_WEMASK 0x7
577 
578 #define RTLLIB_CCK_MODULATION    (1<<0)
579 #define RTLLIB_OFDM_MODULATION   (1<<1)
580 
581 #define RTLLIB_24GHZ_BAND     (1<<0)
582 #define RTLLIB_52GHZ_BAND     (1<<1)
583 
584 #define RTLLIB_CCK_RATE_LEN		4
585 #define RTLLIB_CCK_RATE_1MB			0x02
586 #define RTLLIB_CCK_RATE_2MB			0x04
587 #define RTLLIB_CCK_RATE_5MB			0x0B
588 #define RTLLIB_CCK_RATE_11MB			0x16
589 #define RTLLIB_OFDM_RATE_LEN		8
590 #define RTLLIB_OFDM_RATE_6MB			0x0C
591 #define RTLLIB_OFDM_RATE_9MB			0x12
592 #define RTLLIB_OFDM_RATE_12MB		0x18
593 #define RTLLIB_OFDM_RATE_18MB		0x24
594 #define RTLLIB_OFDM_RATE_24MB		0x30
595 #define RTLLIB_OFDM_RATE_36MB		0x48
596 #define RTLLIB_OFDM_RATE_48MB		0x60
597 #define RTLLIB_OFDM_RATE_54MB		0x6C
598 #define RTLLIB_BASIC_RATE_MASK		0x80
599 
600 /* this is stolen and modified from the madwifi driver*/
601 #define RTLLIB_FC0_TYPE_MASK		0x0c
602 #define RTLLIB_FC0_TYPE_DATA		0x08
603 #define RTLLIB_FC0_SUBTYPE_MASK	0xB0
604 #define RTLLIB_FC0_SUBTYPE_QOS	0x80
605 
606 #define RTLLIB_QOS_HAS_SEQ(fc) \
607 	(((fc) & (RTLLIB_FC0_TYPE_MASK | RTLLIB_FC0_SUBTYPE_MASK)) == \
608 	 (RTLLIB_FC0_TYPE_DATA | RTLLIB_FC0_SUBTYPE_QOS))
609 
610 /* this is stolen from ipw2200 driver */
611 #define IEEE_IBSS_MAC_HASH_SIZE 31
612 struct ieee_ibss_seq {
613 	u8 mac[ETH_ALEN];
614 	u16 seq_num[17];
615 	u16 frag_num[17];
616 	unsigned long packet_time[17];
617 	struct list_head list;
618 };
619 
620 /* NOTE: This data is for statistical purposes; not all hardware provides this
621  *       information for frames received.  Not setting these will not cause
622  *       any adverse affects. */
623 struct rtllib_rx_stats {
624 	u64 mac_time;
625 	s8  rssi;
626 	u8  signal;
627 	u8  noise;
628 	u16 rate; /* in 100 kbps */
629 	u8  received_channel;
630 	u8  control;
631 	u8  mask;
632 	u8  freq;
633 	u16 len;
634 	u64 tsf;
635 	u32 beacon_time;
636 	u8  nic_type;
637 	u16 Length;
638 	u8  SignalQuality;
639 	s32 RecvSignalPower;
640 	s8  RxPower;
641 	u8  SignalStrength;
642 	u16 bHwError:1;
643 	u16 bCRC:1;
644 	u16 bICV:1;
645 	u16 bShortPreamble:1;
646 	u16 Antenna:1;
647 	u16 Decrypted:1;
648 	u16 Wakeup:1;
649 	u16 Reserved0:1;
650 	u8  AGC;
651 	u32 TimeStampLow;
652 	u32 TimeStampHigh;
653 	bool bShift;
654 	bool bIsQosData;
655 
656 	u8    RxDrvInfoSize;
657 	u8    RxBufShift;
658 	bool  bIsAMPDU;
659 	bool  bFirstMPDU;
660 	bool  bContainHTC;
661 	bool  RxIs40MHzPacket;
662 	u32   RxPWDBAll;
663 	u8    RxMIMOSignalStrength[4];
664 	s8    RxMIMOSignalQuality[2];
665 	bool  bPacketMatchBSSID;
666 	bool  bIsCCK;
667 	bool  bPacketToSelf;
668 	u16    packetlength;
669 	u16    fraglength;
670 	u16    fragoffset;
671 	u16    ntotalfrag;
672 	bool   bPacketBeacon;
673 	bool   bToSelfBA;
674 	u16    Seq_Num;
675 };
676 
677 /* IEEE 802.11 requires that STA supports concurrent reception of at least
678  * three fragmented frames. This define can be increased to support more
679  * concurrent frames, but it should be noted that each entry can consume about
680  * 2 kB of RAM and increasing cache size will slow down frame reassembly.
681  */
682 #define RTLLIB_FRAG_CACHE_LEN 4
683 
684 struct rtllib_frag_entry {
685 	unsigned long first_frag_time;
686 	unsigned int seq;
687 	unsigned int last_frag;
688 	struct sk_buff *skb;
689 	u8 src_addr[ETH_ALEN];
690 	u8 dst_addr[ETH_ALEN];
691 };
692 
693 struct rtllib_device;
694 
695 #define SEC_ACTIVE_KEY    (1<<4)
696 #define SEC_AUTH_MODE     (1<<5)
697 #define SEC_UNICAST_GROUP (1<<6)
698 #define SEC_LEVEL	 (1<<7)
699 #define SEC_ENABLED       (1<<8)
700 
701 #define SEC_LEVEL_0      0 /* None */
702 #define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
703 #define SEC_LEVEL_2      2 /* Level 1 + TKIP */
704 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
705 #define SEC_LEVEL_3      4 /* Level 2 + CCMP */
706 
707 #define SEC_ALG_NONE		0
708 #define SEC_ALG_WEP		1
709 #define SEC_ALG_TKIP		2
710 #define SEC_ALG_CCMP		4
711 
712 #define WEP_KEY_LEN		13
713 #define SCM_KEY_LEN		32
714 
715 struct rtllib_security {
716 	u16 active_key:2,
717 	    enabled:1,
718 	    auth_mode:2,
719 	    auth_algo:4,
720 	    unicast_uses_group:1,
721 	    encrypt:1;
722 	u8 key_sizes[NUM_WEP_KEYS];
723 	u8 keys[NUM_WEP_KEYS][SCM_KEY_LEN];
724 	u8 level;
725 	u16 flags;
726 } __packed;
727 
728 
729 /* 802.11 data frame from AP
730  *       ,-------------------------------------------------------------------.
731  * Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
732  *       |------|------|---------|---------|---------|------|---------|------|
733  * Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
734  *       |      | tion | (BSSID) |         |         | ence |  data   |      |
735  *       `-------------------------------------------------------------------'
736  * Total: 28-2340 bytes
737  */
738 
739 /* Management Frame Information Element Types */
740 enum rtllib_mfie {
741 	MFIE_TYPE_SSID = 0,
742 	MFIE_TYPE_RATES = 1,
743 	MFIE_TYPE_FH_SET = 2,
744 	MFIE_TYPE_DS_SET = 3,
745 	MFIE_TYPE_CF_SET = 4,
746 	MFIE_TYPE_TIM = 5,
747 	MFIE_TYPE_IBSS_SET = 6,
748 	MFIE_TYPE_COUNTRY = 7,
749 	MFIE_TYPE_HOP_PARAMS = 8,
750 	MFIE_TYPE_HOP_TABLE = 9,
751 	MFIE_TYPE_REQUEST = 10,
752 	MFIE_TYPE_CHALLENGE = 16,
753 	MFIE_TYPE_POWER_CONSTRAINT = 32,
754 	MFIE_TYPE_POWER_CAPABILITY = 33,
755 	MFIE_TYPE_TPC_REQUEST = 34,
756 	MFIE_TYPE_TPC_REPORT = 35,
757 	MFIE_TYPE_SUPP_CHANNELS = 36,
758 	MFIE_TYPE_CSA = 37,
759 	MFIE_TYPE_MEASURE_REQUEST = 38,
760 	MFIE_TYPE_MEASURE_REPORT = 39,
761 	MFIE_TYPE_QUIET = 40,
762 	MFIE_TYPE_IBSS_DFS = 41,
763 	MFIE_TYPE_ERP = 42,
764 	MFIE_TYPE_HT_CAP = 45,
765 	MFIE_TYPE_RSN = 48,
766 	MFIE_TYPE_RATES_EX = 50,
767 	MFIE_TYPE_HT_INFO = 61,
768 	MFIE_TYPE_AIRONET = 133,
769 	MFIE_TYPE_GENERIC = 221,
770 	MFIE_TYPE_QOS_PARAMETER = 222,
771 };
772 
773 /* Minimal header; can be used for passing 802.11 frames with sufficient
774  * information to determine what type of underlying data type is actually
775  * stored in the data.
776  */
777 struct rtllib_pspoll_hdr {
778 	__le16 frame_ctl;
779 	__le16 aid;
780 	u8 bssid[ETH_ALEN];
781 	u8 ta[ETH_ALEN];
782 } __packed;
783 
784 struct rtllib_hdr {
785 	__le16 frame_ctl;
786 	__le16 duration_id;
787 	u8 payload[0];
788 } __packed;
789 
790 struct rtllib_hdr_1addr {
791 	__le16 frame_ctl;
792 	__le16 duration_id;
793 	u8 addr1[ETH_ALEN];
794 	u8 payload[0];
795 } __packed;
796 
797 struct rtllib_hdr_2addr {
798 	__le16 frame_ctl;
799 	__le16 duration_id;
800 	u8 addr1[ETH_ALEN];
801 	u8 addr2[ETH_ALEN];
802 	u8 payload[0];
803 } __packed;
804 
805 struct rtllib_hdr_3addr {
806 	__le16 frame_ctl;
807 	__le16 duration_id;
808 	u8 addr1[ETH_ALEN];
809 	u8 addr2[ETH_ALEN];
810 	u8 addr3[ETH_ALEN];
811 	__le16 seq_ctl;
812 	u8 payload[0];
813 } __packed;
814 
815 struct rtllib_hdr_4addr {
816 	__le16 frame_ctl;
817 	__le16 duration_id;
818 	u8 addr1[ETH_ALEN];
819 	u8 addr2[ETH_ALEN];
820 	u8 addr3[ETH_ALEN];
821 	__le16 seq_ctl;
822 	u8 addr4[ETH_ALEN];
823 	u8 payload[0];
824 } __packed;
825 
826 struct rtllib_hdr_3addrqos {
827 	__le16 frame_ctl;
828 	__le16 duration_id;
829 	u8 addr1[ETH_ALEN];
830 	u8 addr2[ETH_ALEN];
831 	u8 addr3[ETH_ALEN];
832 	__le16 seq_ctl;
833 	__le16 qos_ctl;
834 	u8 payload[0];
835 } __packed;
836 
837 struct rtllib_hdr_4addrqos {
838 	__le16 frame_ctl;
839 	__le16 duration_id;
840 	u8 addr1[ETH_ALEN];
841 	u8 addr2[ETH_ALEN];
842 	u8 addr3[ETH_ALEN];
843 	__le16 seq_ctl;
844 	u8 addr4[ETH_ALEN];
845 	__le16 qos_ctl;
846 	u8 payload[0];
847 } __packed;
848 
849 struct rtllib_info_element {
850 	u8 id;
851 	u8 len;
852 	u8 data[0];
853 } __packed;
854 
855 struct rtllib_authentication {
856 	struct rtllib_hdr_3addr header;
857 	__le16 algorithm;
858 	__le16 transaction;
859 	__le16 status;
860 	/*challenge*/
861 	struct rtllib_info_element info_element[0];
862 } __packed;
863 
864 struct rtllib_disauth {
865 	struct rtllib_hdr_3addr header;
866 	__le16 reason;
867 } __packed;
868 
869 struct rtllib_disassoc {
870 	struct rtllib_hdr_3addr header;
871 	__le16 reason;
872 } __packed;
873 
874 struct rtllib_probe_request {
875 	struct rtllib_hdr_3addr header;
876 	/* SSID, supported rates */
877 	struct rtllib_info_element info_element[0];
878 } __packed;
879 
880 struct rtllib_probe_response {
881 	struct rtllib_hdr_3addr header;
882 	u32 time_stamp[2];
883 	__le16 beacon_interval;
884 	__le16 capability;
885 	/* SSID, supported rates, FH params, DS params,
886 	 * CF params, IBSS params, TIM (if beacon), RSN
887 	 */
888 	struct rtllib_info_element info_element[0];
889 } __packed;
890 
891 /* Alias beacon for probe_response */
892 #define rtllib_beacon rtllib_probe_response
893 
894 struct rtllib_assoc_request_frame {
895 	struct rtllib_hdr_3addr header;
896 	__le16 capability;
897 	__le16 listen_interval;
898 	/* SSID, supported rates, RSN */
899 	struct rtllib_info_element info_element[0];
900 } __packed;
901 
902 struct rtllib_assoc_response_frame {
903 	struct rtllib_hdr_3addr header;
904 	__le16 capability;
905 	__le16 status;
906 	__le16 aid;
907 	struct rtllib_info_element info_element[0]; /* supported rates */
908 } __packed;
909 
910 struct rtllib_txb {
911 	u8 nr_frags;
912 	u8 encrypted;
913 	u8 queue_index;
914 	u8 rts_included;
915 	u16 reserved;
916 	__le16 frag_size;
917 	__le16 payload_size;
918 	struct sk_buff *fragments[0];
919 };
920 
921 #define MAX_SUBFRAME_COUNT		  64
922 struct rtllib_rxb {
923 	u8 nr_subframes;
924 	struct sk_buff *subframes[MAX_SUBFRAME_COUNT];
925 	u8 dst[ETH_ALEN];
926 	u8 src[ETH_ALEN];
927 } __packed;
928 
929 union frameqos {
930 	u16 shortdata;
931 	u8  chardata[2];
932 	struct {
933 		u16 tid:4;
934 		u16 eosp:1;
935 		u16 ack_policy:2;
936 		u16 reserved:1;
937 		u16 txop:8;
938 	} field;
939 };
940 
941 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
942  * only use 8, and then use extended rates for the remaining supported
943  * rates.  Other APs, however, stick all of their supported rates on the
944  * main rates information element...
945  */
946 #define MAX_RATES_LENGTH		  ((u8)12)
947 #define MAX_RATES_EX_LENGTH	       ((u8)16)
948 #define MAX_NETWORK_COUNT		  96
949 
950 #define MAX_CHANNEL_NUMBER		 161
951 #define RTLLIB_SOFTMAC_SCAN_TIME	   100
952 #define RTLLIB_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)
953 
954 #define MAX_WPA_IE_LEN 64
955 #define MAX_WZC_IE_LEN 256
956 
957 #define NETWORK_EMPTY_ESSID (1<<0)
958 #define NETWORK_HAS_OFDM    (1<<1)
959 #define NETWORK_HAS_CCK     (1<<2)
960 
961 /* QoS structure */
962 #define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
963 #define NETWORK_HAS_QOS_INFORMATION     (1<<4)
964 #define NETWORK_HAS_QOS_MASK	    (NETWORK_HAS_QOS_PARAMETERS | \
965 					 NETWORK_HAS_QOS_INFORMATION)
966 /* 802.11h */
967 #define NETWORK_HAS_ERP_VALUE	   (1<<10)
968 
969 #define QOS_QUEUE_NUM		   4
970 #define QOS_OUI_LEN		     3
971 #define QOS_OUI_TYPE		    2
972 #define QOS_ELEMENT_ID		  221
973 #define QOS_OUI_INFO_SUB_TYPE	   0
974 #define QOS_OUI_PARAM_SUB_TYPE	  1
975 #define QOS_VERSION_1		   1
976 
977 struct rtllib_qos_information_element {
978 	u8 elementID;
979 	u8 length;
980 	u8 qui[QOS_OUI_LEN];
981 	u8 qui_type;
982 	u8 qui_subtype;
983 	u8 version;
984 	u8 ac_info;
985 } __packed;
986 
987 struct rtllib_qos_ac_parameter {
988 	u8 aci_aifsn;
989 	u8 ecw_min_max;
990 	__le16 tx_op_limit;
991 } __packed;
992 
993 struct rtllib_qos_parameter_info {
994 	struct rtllib_qos_information_element info_element;
995 	u8 reserved;
996 	struct rtllib_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
997 } __packed;
998 
999 struct rtllib_qos_parameters {
1000 	__le16 cw_min[QOS_QUEUE_NUM];
1001 	__le16 cw_max[QOS_QUEUE_NUM];
1002 	u8 aifs[QOS_QUEUE_NUM];
1003 	u8 flag[QOS_QUEUE_NUM];
1004 	__le16 tx_op_limit[QOS_QUEUE_NUM];
1005 } __packed;
1006 
1007 struct rtllib_qos_data {
1008 	struct rtllib_qos_parameters parameters;
1009 	unsigned int wmm_acm;
1010 	int active;
1011 	int supported;
1012 	u8 param_count;
1013 	u8 old_param_count;
1014 };
1015 
1016 struct rtllib_tim_parameters {
1017 	u8 tim_count;
1018 	u8 tim_period;
1019 } __packed;
1020 
1021 struct rtllib_wmm_ac_param {
1022 	u8 ac_aci_acm_aifsn;
1023 	u8 ac_ecwmin_ecwmax;
1024 	u16 ac_txop_limit;
1025 };
1026 
1027 enum eap_type {
1028 	EAP_PACKET = 0,
1029 	EAPOL_START,
1030 	EAPOL_LOGOFF,
1031 	EAPOL_KEY,
1032 	EAPOL_ENCAP_ASF_ALERT
1033 };
1034 
1035 static const char * const eap_types[] = {
1036 	[EAP_PACKET]		= "EAP-Packet",
1037 	[EAPOL_START]		= "EAPOL-Start",
1038 	[EAPOL_LOGOFF]		= "EAPOL-Logoff",
1039 	[EAPOL_KEY]		= "EAPOL-Key",
1040 	[EAPOL_ENCAP_ASF_ALERT]	= "EAPOL-Encap-ASF-Alert"
1041 };
1042 
1043 static inline const char *eap_get_type(int type)
1044 {
1045 	return ((u32)type >= ARRAY_SIZE(eap_types)) ? "Unknown" :
1046 		 eap_types[type];
1047 }
1048 static inline u8 Frame_QoSTID(u8 *buf)
1049 {
1050 	struct rtllib_hdr_3addr *hdr;
1051 	u16 fc;
1052 
1053 	hdr = (struct rtllib_hdr_3addr *)buf;
1054 	fc = le16_to_cpu(hdr->frame_ctl);
1055 	return (u8)((union frameqos *)(buf + (((fc & RTLLIB_FCTL_TODS) &&
1056 		    (fc & RTLLIB_FCTL_FROMDS)) ? 30 : 24)))->field.tid;
1057 }
1058 
1059 
1060 struct eapol {
1061 	u8 snap[6];
1062 	u16 ethertype;
1063 	u8 version;
1064 	u8 type;
1065 	u16 length;
1066 } __packed;
1067 
1068 struct rtllib_softmac_stats {
1069 	unsigned int rx_ass_ok;
1070 	unsigned int rx_ass_err;
1071 	unsigned int rx_probe_rq;
1072 	unsigned int tx_probe_rs;
1073 	unsigned int tx_beacons;
1074 	unsigned int rx_auth_rq;
1075 	unsigned int rx_auth_rs_ok;
1076 	unsigned int rx_auth_rs_err;
1077 	unsigned int tx_auth_rq;
1078 	unsigned int no_auth_rs;
1079 	unsigned int no_ass_rs;
1080 	unsigned int tx_ass_rq;
1081 	unsigned int rx_ass_rq;
1082 	unsigned int tx_probe_rq;
1083 	unsigned int reassoc;
1084 	unsigned int swtxstop;
1085 	unsigned int swtxawake;
1086 	unsigned char CurrentShowTxate;
1087 	unsigned char last_packet_rate;
1088 	unsigned int txretrycount;
1089 };
1090 
1091 /* These are the data types that can make up management packets
1092  *
1093  * u16 auth_algorithm;
1094  * u16 auth_sequence;
1095  * u16 beacon_interval;
1096  * u16 capability;
1097  * u8 current_ap[ETH_ALEN];
1098  * u16 listen_interval;
1099  * struct {
1100  *   u16 association_id:14, reserved:2;
1101  * } __packed;
1102  * u32 time_stamp[2];
1103  * u16 reason;
1104  * u16 status;
1105  */
1106 
1107 #define RTLLIB_DEFAULT_TX_ESSID "Penguin"
1108 #define RTLLIB_DEFAULT_BASIC_RATE 2
1109 
1110 enum {WMM_all_frame, WMM_two_frame, WMM_four_frame, WMM_six_frame};
1111 #define MAX_SP_Len  (WMM_all_frame << 4)
1112 #define RTLLIB_QOS_TID 0x0f
1113 #define QOS_CTL_NOTCONTAIN_ACK (0x01 << 5)
1114 
1115 #define RTLLIB_DTIM_MBCAST 4
1116 #define RTLLIB_DTIM_UCAST 2
1117 #define RTLLIB_DTIM_VALID 1
1118 #define RTLLIB_DTIM_INVALID 0
1119 
1120 #define RTLLIB_PS_DISABLED 0
1121 #define RTLLIB_PS_UNICAST RTLLIB_DTIM_UCAST
1122 #define RTLLIB_PS_MBCAST RTLLIB_DTIM_MBCAST
1123 
1124 #define WME_AC_BK   0x00
1125 #define WME_AC_BE   0x01
1126 #define WME_AC_VI   0x02
1127 #define WME_AC_VO   0x03
1128 #define WME_AC_PRAM_LEN 16
1129 
1130 #define MAX_RECEIVE_BUFFER_SIZE 9100
1131 
1132 #define UP2AC(up) (		   \
1133 	((up) < 1) ? WME_AC_BE : \
1134 	((up) < 3) ? WME_AC_BK : \
1135 	((up) < 4) ? WME_AC_BE : \
1136 	((up) < 6) ? WME_AC_VI : \
1137 	WME_AC_VO)
1138 
1139 #define	ETHER_ADDR_LEN		6	/* length of an Ethernet address */
1140 #define ETHERNET_HEADER_SIZE    14      /* length of two Ethernet address
1141 					 * plus ether type*/
1142 
1143 enum erp_t {
1144 	ERP_NonERPpresent	= 0x01,
1145 	ERP_UseProtection	= 0x02,
1146 	ERP_BarkerPreambleMode = 0x04,
1147 };
1148 
1149 struct rtllib_network {
1150 	/* These entries are used to identify a unique network */
1151 	u8 bssid[ETH_ALEN];
1152 	u8 channel;
1153 	/* Ensure null-terminated for any debug msgs */
1154 	u8 ssid[IW_ESSID_MAX_SIZE + 1];
1155 	u8 ssid_len;
1156 	u8 hidden_ssid[IW_ESSID_MAX_SIZE + 1];
1157 	u8 hidden_ssid_len;
1158 	struct rtllib_qos_data qos_data;
1159 
1160 	bool	bWithAironetIE;
1161 	bool	bCkipSupported;
1162 	bool	bCcxRmEnable;
1163 	u16	CcxRmState[2];
1164 	bool	bMBssidValid;
1165 	u8	MBssidMask;
1166 	u8	MBssid[ETH_ALEN];
1167 	bool	bWithCcxVerNum;
1168 	u8	BssCcxVerNumber;
1169 	/* These are network statistics */
1170 	struct rtllib_rx_stats stats;
1171 	u16 capability;
1172 	u8  rates[MAX_RATES_LENGTH];
1173 	u8  rates_len;
1174 	u8  rates_ex[MAX_RATES_EX_LENGTH];
1175 	u8  rates_ex_len;
1176 	unsigned long last_scanned;
1177 	u8  mode;
1178 	u32 flags;
1179 	u32 time_stamp[2];
1180 	u16 beacon_interval;
1181 	u16 listen_interval;
1182 	u16 atim_window;
1183 	u8  erp_value;
1184 	u8  wpa_ie[MAX_WPA_IE_LEN];
1185 	size_t wpa_ie_len;
1186 	u8  rsn_ie[MAX_WPA_IE_LEN];
1187 	size_t rsn_ie_len;
1188 	u8  wzc_ie[MAX_WZC_IE_LEN];
1189 	size_t wzc_ie_len;
1190 
1191 	struct rtllib_tim_parameters tim;
1192 	u8  dtim_period;
1193 	u8  dtim_data;
1194 	u64 last_dtim_sta_time;
1195 
1196 	u8 wmm_info;
1197 	struct rtllib_wmm_ac_param wmm_param[4];
1198 	u8 Turbo_Enable;
1199 	u16 CountryIeLen;
1200 	u8 CountryIeBuf[MAX_IE_LEN];
1201 	struct bss_ht bssht;
1202 	bool broadcom_cap_exist;
1203 	bool realtek_cap_exit;
1204 	bool marvell_cap_exist;
1205 	bool ralink_cap_exist;
1206 	bool atheros_cap_exist;
1207 	bool cisco_cap_exist;
1208 	bool airgo_cap_exist;
1209 	bool unknown_cap_exist;
1210 	bool	berp_info_valid;
1211 	bool buseprotection;
1212 	u8 SignalStrength;
1213 	u8 RSSI;
1214 	struct list_head list;
1215 };
1216 
1217 enum rtllib_state {
1218 
1219 	/* the card is not linked at all */
1220 	RTLLIB_NOLINK = 0,
1221 
1222 	/* RTLLIB_ASSOCIATING* are for BSS client mode
1223 	 * the driver shall not perform RX filtering unless
1224 	 * the state is LINKED.
1225 	 * The driver shall just check for the state LINKED and
1226 	 * defaults to NOLINK for ALL the other states (including
1227 	 * LINKED_SCANNING)
1228 	 */
1229 
1230 	/* the association procedure will start (wq scheduling)*/
1231 	RTLLIB_ASSOCIATING,
1232 	RTLLIB_ASSOCIATING_RETRY,
1233 
1234 	/* the association procedure is sending AUTH request*/
1235 	RTLLIB_ASSOCIATING_AUTHENTICATING,
1236 
1237 	/* the association procedure has successfully authenticated
1238 	 * and is sending association request
1239 	 */
1240 	RTLLIB_ASSOCIATING_AUTHENTICATED,
1241 
1242 	/* the link is ok. the card associated to a BSS or linked
1243 	 * to a ibss cell or acting as an AP and creating the bss
1244 	 */
1245 	RTLLIB_LINKED,
1246 
1247 	/* same as LINKED, but the driver shall apply RX filter
1248 	 * rules as we are in NO_LINK mode. As the card is still
1249 	 * logically linked, but it is doing a syncro site survey
1250 	 * then it will be back to LINKED state.
1251 	 */
1252 	RTLLIB_LINKED_SCANNING,
1253 };
1254 
1255 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
1256 #define DEFAULT_FTS 2346
1257 
1258 #define CFG_RTLLIB_RESERVE_FCS (1<<0)
1259 #define CFG_RTLLIB_COMPUTE_FCS (1<<1)
1260 
1261 struct tx_pending {
1262 	int frag;
1263 	struct rtllib_txb *txb;
1264 };
1265 
1266 struct bandwidth_autoswitch {
1267 	long threshold_20Mhzto40Mhz;
1268 	long	threshold_40Mhzto20Mhz;
1269 	bool bforced_tx20Mhz;
1270 	bool bautoswitch_enable;
1271 };
1272 
1273 
1274 
1275 #define REORDER_WIN_SIZE	128
1276 #define REORDER_ENTRY_NUM	128
1277 struct rx_reorder_entry {
1278 	struct list_head	List;
1279 	u16			SeqNum;
1280 	struct rtllib_rxb *prxb;
1281 };
1282 enum fsync_state {
1283 	Default_Fsync,
1284 	HW_Fsync,
1285 	SW_Fsync
1286 };
1287 
1288 enum rt_ps_mode {
1289 	eActive,
1290 	eMaxPs,
1291 	eFastPs,
1292 	eAutoPs,
1293 };
1294 
1295 enum ips_callback_function {
1296 	IPS_CALLBACK_NONE = 0,
1297 	IPS_CALLBACK_MGNT_LINK_REQUEST = 1,
1298 	IPS_CALLBACK_JOIN_REQUEST = 2,
1299 };
1300 
1301 enum rt_rf_power_state {
1302 	eRfOn,
1303 	eRfSleep,
1304 	eRfOff
1305 };
1306 
1307 struct rt_pwr_save_ctrl {
1308 
1309 	bool				bInactivePs;
1310 	bool				bIPSModeBackup;
1311 	bool				bSwRfProcessing;
1312 	enum rt_rf_power_state eInactivePowerState;
1313 	enum ips_callback_function ReturnPoint;
1314 
1315 	bool				bLeisurePs;
1316 	u8				LpsIdleCount;
1317 	u8				RegMaxLPSAwakeIntvl;
1318 	u8				LPSAwakeIntvl;
1319 
1320 	u32				CurPsLevel;
1321 	u32				RegRfPsLevel;
1322 
1323 	bool				bFwCtrlLPS;
1324 
1325 };
1326 
1327 #define RT_RF_CHANGE_SOURCE u32
1328 
1329 #define RF_CHANGE_BY_SW BIT31
1330 #define RF_CHANGE_BY_HW BIT30
1331 #define RF_CHANGE_BY_PS BIT29
1332 #define RF_CHANGE_BY_IPS BIT28
1333 #define RF_CHANGE_BY_INIT	0
1334 
1335 enum country_code_type {
1336 	COUNTRY_CODE_FCC = 0,
1337 	COUNTRY_CODE_IC = 1,
1338 	COUNTRY_CODE_ETSI = 2,
1339 	COUNTRY_CODE_SPAIN = 3,
1340 	COUNTRY_CODE_FRANCE = 4,
1341 	COUNTRY_CODE_MKK = 5,
1342 	COUNTRY_CODE_MKK1 = 6,
1343 	COUNTRY_CODE_ISRAEL = 7,
1344 	COUNTRY_CODE_TELEC = 8,
1345 	COUNTRY_CODE_MIC = 9,
1346 	COUNTRY_CODE_GLOBAL_DOMAIN = 10,
1347 	COUNTRY_CODE_WORLD_WIDE_13 = 11,
1348 	COUNTRY_CODE_TELEC_NETGEAR = 12,
1349 	COUNTRY_CODE_MAX
1350 };
1351 
1352 enum scan_op_backup_opt {
1353 	SCAN_OPT_BACKUP = 0,
1354 	SCAN_OPT_RESTORE,
1355 	SCAN_OPT_MAX
1356 };
1357 
1358 enum fw_cmd_io_type {
1359 	FW_CMD_DIG_ENABLE = 0,
1360 	FW_CMD_DIG_DISABLE = 1,
1361 	FW_CMD_DIG_HALT = 2,
1362 	FW_CMD_DIG_RESUME = 3,
1363 	FW_CMD_HIGH_PWR_ENABLE = 4,
1364 	FW_CMD_HIGH_PWR_DISABLE = 5,
1365 	FW_CMD_RA_RESET = 6,
1366 	FW_CMD_RA_ACTIVE = 7,
1367 	FW_CMD_RA_REFRESH_N = 8,
1368 	FW_CMD_RA_REFRESH_BG = 9,
1369 	FW_CMD_RA_INIT = 10,
1370 	FW_CMD_IQK_ENABLE = 11,
1371 	FW_CMD_TXPWR_TRACK_ENABLE = 12,
1372 	FW_CMD_TXPWR_TRACK_DISABLE = 13,
1373 	FW_CMD_TXPWR_TRACK_THERMAL = 14,
1374 	FW_CMD_PAUSE_DM_BY_SCAN = 15,
1375 	FW_CMD_RESUME_DM_BY_SCAN = 16,
1376 	FW_CMD_RA_REFRESH_N_COMB = 17,
1377 	FW_CMD_RA_REFRESH_BG_COMB = 18,
1378 	FW_CMD_ANTENNA_SW_ENABLE = 19,
1379 	FW_CMD_ANTENNA_SW_DISABLE = 20,
1380 	FW_CMD_TX_FEEDBACK_CCX_ENABLE = 21,
1381 	FW_CMD_LPS_ENTER = 22,
1382 	FW_CMD_LPS_LEAVE = 23,
1383 };
1384 
1385 #define RT_MAX_LD_SLOT_NUM	10
1386 struct rt_link_detect {
1387 
1388 	u32				NumRecvBcnInPeriod;
1389 	u32				NumRecvDataInPeriod;
1390 
1391 	u32				RxBcnNum[RT_MAX_LD_SLOT_NUM];
1392 	u32				RxDataNum[RT_MAX_LD_SLOT_NUM];
1393 	u16				SlotNum;
1394 	u16				SlotIndex;
1395 
1396 	u32				NumTxOkInPeriod;
1397 	u32				NumRxOkInPeriod;
1398 	u32				NumRxUnicastOkInPeriod;
1399 	bool				bBusyTraffic;
1400 	bool				bHigherBusyTraffic;
1401 	bool				bHigherBusyRxTraffic;
1402 };
1403 
1404 struct sw_cam_table {
1405 
1406 	u8				macaddr[ETH_ALEN];
1407 	bool				bused;
1408 	u8				key_buf[16];
1409 	u16				key_type;
1410 	u8				useDK;
1411 	u8				key_index;
1412 
1413 };
1414 #define   TOTAL_CAM_ENTRY				32
1415 struct rate_adaptive {
1416 	u8				rate_adaptive_disabled;
1417 	u8				ratr_state;
1418 	u16				reserve;
1419 
1420 	u32				high_rssi_thresh_for_ra;
1421 	u32				high2low_rssi_thresh_for_ra;
1422 	u8				low2high_rssi_thresh_for_ra40M;
1423 	u32				low_rssi_thresh_for_ra40M;
1424 	u8				low2high_rssi_thresh_for_ra20M;
1425 	u32				low_rssi_thresh_for_ra20M;
1426 	u32				upper_rssi_threshold_ratr;
1427 	u32				middle_rssi_threshold_ratr;
1428 	u32				low_rssi_threshold_ratr;
1429 	u32				low_rssi_threshold_ratr_40M;
1430 	u32				low_rssi_threshold_ratr_20M;
1431 	u8				ping_rssi_enable;
1432 	u32				ping_rssi_ratr;
1433 	u32				ping_rssi_thresh_for_ra;
1434 	u32				last_ratr;
1435 	u8				PreRATRState;
1436 
1437 };
1438 
1439 #define	NUM_PMKID_CACHE		16
1440 struct rt_pmkid_list {
1441 	u8 Bssid[ETH_ALEN];
1442 	u8 PMKID[16];
1443 	u8 SsidBuf[33];
1444 	u8 bUsed;
1445 };
1446 
1447 struct rt_intel_promisc_mode {
1448 	bool bPromiscuousOn;
1449 	bool bFilterSourceStationFrame;
1450 };
1451 
1452 
1453 /*************** DRIVER STATUS   *****/
1454 #define STATUS_SCANNING			0
1455 /*************** DRIVER STATUS   *****/
1456 
1457 enum {
1458 	LPS_IS_WAKE = 0,
1459 	LPS_IS_SLEEP = 1,
1460 	LPS_WAIT_NULL_DATA_SEND = 2,
1461 };
1462 
1463 struct rtllib_device {
1464 	struct pci_dev *pdev;
1465 	struct net_device *dev;
1466 	struct rtllib_security sec;
1467 
1468 	bool disable_mgnt_queue;
1469 
1470 	unsigned long status;
1471 	u8	CntAfterLink;
1472 
1473 	enum rt_op_mode OpMode;
1474 
1475 	/* The last AssocReq/Resp IEs */
1476 	u8 *assocreq_ies, *assocresp_ies;
1477 	size_t assocreq_ies_len, assocresp_ies_len;
1478 
1479 	bool	bForcedBgMode;
1480 	u8 RF_Type;
1481 
1482 	u8 hwsec_active;
1483 	bool is_silent_reset;
1484 	bool is_roaming;
1485 	bool ieee_up;
1486 	bool cannot_notify;
1487 	bool bSupportRemoteWakeUp;
1488 	bool actscanning;
1489 	bool FirstIe_InScan;
1490 	bool be_scan_inprogress;
1491 	bool beinretry;
1492 	enum rt_rf_power_state eRFPowerState;
1493 	RT_RF_CHANGE_SOURCE	RfOffReason;
1494 	bool is_set_key;
1495 	bool wx_set_enc;
1496 	struct rt_hi_throughput *pHTInfo;
1497 
1498 	spinlock_t reorder_spinlock;
1499 	u8	Regdot11HTOperationalRateSet[16];
1500 	u8	Regdot11TxHTOperationalRateSet[16];
1501 	u8	dot11HTOperationalRateSet[16];
1502 	u8	RegHTSuppRateSet[16];
1503 	u8	HTCurrentOperaRate;
1504 	u8	HTHighestOperaRate;
1505 	u8	bTxDisableRateFallBack;
1506 	u8	bTxUseDriverAssingedRate;
1507 	u8	bTxEnableFwCalcDur;
1508 	atomic_t	atm_swbw;
1509 
1510 	struct list_head		Tx_TS_Admit_List;
1511 	struct list_head		Tx_TS_Pending_List;
1512 	struct list_head		Tx_TS_Unused_List;
1513 	struct tx_ts_record TxTsRecord[TOTAL_TS_NUM];
1514 	struct list_head		Rx_TS_Admit_List;
1515 	struct list_head		Rx_TS_Pending_List;
1516 	struct list_head		Rx_TS_Unused_List;
1517 	struct rx_ts_record RxTsRecord[TOTAL_TS_NUM];
1518 	struct rx_reorder_entry RxReorderEntry[128];
1519 	struct list_head		RxReorder_Unused_List;
1520 
1521 
1522 	/* Bookkeeping structures */
1523 	struct net_device_stats stats;
1524 	struct rtllib_softmac_stats softmac_stats;
1525 
1526 	/* Probe / Beacon management */
1527 	struct list_head network_free_list;
1528 	struct list_head network_list;
1529 	struct rtllib_network *networks;
1530 	int scans;
1531 	int scan_age;
1532 
1533 	int iw_mode; /* operating mode (IW_MODE_*) */
1534 	bool bNetPromiscuousMode;
1535 	struct rt_intel_promisc_mode IntelPromiscuousModeInfo;
1536 
1537 	spinlock_t lock;
1538 	spinlock_t wpax_suitlist_lock;
1539 
1540 	int tx_headroom; /* Set to size of any additional room needed at front
1541 			  * of allocated Tx SKBs
1542 			  */
1543 	u32 config;
1544 
1545 	/* WEP and other encryption related settings at the device level */
1546 	int open_wep; /* Set to 1 to allow unencrypted frames */
1547 	int auth_mode;
1548 	int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
1549 				 * WEP key changes
1550 				 */
1551 
1552 	/* If the host performs {en,de}cryption, then set to 1 */
1553 	int host_encrypt;
1554 	int host_decrypt;
1555 
1556 	int ieee802_1x; /* is IEEE 802.1X used */
1557 
1558 	/* WPA data */
1559 	bool bHalfWirelessN24GMode;
1560 	int wpa_enabled;
1561 	int drop_unencrypted;
1562 	int tkip_countermeasures;
1563 	int privacy_invoked;
1564 	size_t wpa_ie_len;
1565 	u8 *wpa_ie;
1566 	size_t wps_ie_len;
1567 	u8 *wps_ie;
1568 	u8 ap_mac_addr[ETH_ALEN];
1569 	u16 pairwise_key_type;
1570 	u16 group_key_type;
1571 
1572 	struct lib80211_crypt_info crypt_info;
1573 
1574 	struct sw_cam_table swcamtable[TOTAL_CAM_ENTRY];
1575 
1576 	struct rt_pmkid_list PMKIDList[NUM_PMKID_CACHE];
1577 
1578 	/* Fragmentation structures */
1579 	struct rtllib_frag_entry frag_cache[17][RTLLIB_FRAG_CACHE_LEN];
1580 	unsigned int frag_next_idx[17];
1581 	u16 fts; /* Fragmentation Threshold */
1582 #define DEFAULT_RTS_THRESHOLD 2346U
1583 #define MIN_RTS_THRESHOLD 1
1584 #define MAX_RTS_THRESHOLD 2346U
1585 	u16 rts; /* RTS threshold */
1586 
1587 	/* Association info */
1588 	u8 bssid[ETH_ALEN];
1589 
1590 	/* This stores infos for the current network.
1591 	 * Either the network we are associated in INFRASTRUCTURE
1592 	 * or the network that we are creating in MASTER mode.
1593 	 * ad-hoc is a mixture ;-).
1594 	 * Note that in infrastructure mode, even when not associated,
1595 	 * fields bssid and essid may be valid (if wpa_set and essid_set
1596 	 * are true) as thy carry the value set by the user via iwconfig
1597 	 */
1598 	struct rtllib_network current_network;
1599 
1600 	enum rtllib_state state;
1601 
1602 	int short_slot;
1603 	int mode;       /* A, B, G */
1604 	int modulation; /* CCK, OFDM */
1605 
1606 	/* used for forcing the ibss workqueue to terminate
1607 	 * without wait for the syncro scan to terminate
1608 	 */
1609 	short sync_scan_hurryup;
1610 	u16 scan_watch_dog;
1611 
1612 	/* map of allowed channels. 0 is dummy */
1613 	void *pDot11dInfo;
1614 	bool bGlobalDomain;
1615 	u8 active_channel_map[MAX_CHANNEL_NUMBER+1];
1616 
1617 	u8   IbssStartChnl;
1618 	u8   ibss_maxjoin_chal;
1619 
1620 	int rate;       /* current rate */
1621 	int basic_rate;
1622 
1623 	short active_scan;
1624 
1625 	/* this contains flags for selectively enable softmac support */
1626 	u16 softmac_features;
1627 
1628 	/* if the sequence control field is not filled by HW */
1629 	u16 seq_ctrl[5];
1630 
1631 	/* association procedure transaction sequence number */
1632 	u16 associate_seq;
1633 
1634 	/* AID for RTXed association responses */
1635 	u16 assoc_id;
1636 
1637 	/* power save mode related*/
1638 	u8 ack_tx_to_ieee;
1639 	short ps;
1640 	short sta_sleep;
1641 	int ps_timeout;
1642 	int ps_period;
1643 	struct tasklet_struct ps_task;
1644 	u64 ps_time;
1645 	bool polling;
1646 
1647 	short raw_tx;
1648 	/* used if IEEE_SOFTMAC_TX_QUEUE is set */
1649 	short queue_stop;
1650 	short scanning_continue;
1651 	short proto_started;
1652 	short proto_stoppping;
1653 
1654 	struct semaphore wx_sem;
1655 	struct semaphore scan_sem;
1656 	struct semaphore ips_sem;
1657 
1658 	spinlock_t mgmt_tx_lock;
1659 	spinlock_t beacon_lock;
1660 
1661 	short beacon_txing;
1662 
1663 	short wap_set;
1664 	short ssid_set;
1665 
1666 	/* set on initialization */
1667 	unsigned int wmm_acm;
1668 
1669 	/* for discarding duplicated packets in IBSS */
1670 	struct list_head ibss_mac_hash[IEEE_IBSS_MAC_HASH_SIZE];
1671 
1672 	/* for discarding duplicated packets in BSS */
1673 	u16 last_rxseq_num[17]; /* rx seq previous per-tid */
1674 	u16 last_rxfrag_num[17];/* tx frag previous per-tid */
1675 	unsigned long last_packet_time[17];
1676 
1677 	/* for PS mode */
1678 	unsigned long last_rx_ps_time;
1679 	bool			bAwakePktSent;
1680 	u8			LPSDelayCnt;
1681 
1682 	/* used if IEEE_SOFTMAC_SINGLE_QUEUE is set */
1683 	struct sk_buff *mgmt_queue_ring[MGMT_QUEUE_NUM];
1684 	int mgmt_queue_head;
1685 	int mgmt_queue_tail;
1686 	u8 AsocRetryCount;
1687 	struct sk_buff_head skb_waitQ[MAX_QUEUE_SIZE];
1688 	struct sk_buff_head  skb_aggQ[MAX_QUEUE_SIZE];
1689 
1690 	bool	bdynamic_txpower_enable;
1691 
1692 	bool bCTSToSelfEnable;
1693 
1694 	u32	fsync_time_interval;
1695 	u32	fsync_rate_bitmap;
1696 	u8	fsync_rssi_threshold;
1697 	bool	bfsync_enable;
1698 
1699 	u8	fsync_multiple_timeinterval;
1700 	u32	fsync_firstdiff_ratethreshold;
1701 	u32	fsync_seconddiff_ratethreshold;
1702 	enum fsync_state fsync_state;
1703 	bool		bis_any_nonbepkts;
1704 	struct bandwidth_autoswitch bandwidth_auto_switch;
1705 	bool FwRWRF;
1706 
1707 	struct rt_link_detect LinkDetectInfo;
1708 	bool bIsAggregateFrame;
1709 	struct rt_pwr_save_ctrl PowerSaveControl;
1710 
1711 	/* used if IEEE_SOFTMAC_TX_QUEUE is set */
1712 	struct tx_pending tx_pending;
1713 
1714 	/* used if IEEE_SOFTMAC_ASSOCIATE is set */
1715 	struct timer_list associate_timer;
1716 
1717 	/* used if IEEE_SOFTMAC_BEACONS is set */
1718 	struct timer_list beacon_timer;
1719 	u8 need_sw_enc;
1720 	struct work_struct associate_complete_wq;
1721 	struct work_struct ips_leave_wq;
1722 	struct delayed_work associate_procedure_wq;
1723 	struct delayed_work softmac_scan_wq;
1724 	struct delayed_work associate_retry_wq;
1725 	struct delayed_work start_ibss_wq;
1726 	struct delayed_work hw_wakeup_wq;
1727 	struct delayed_work hw_sleep_wq;
1728 	struct delayed_work link_change_wq;
1729 	struct work_struct wx_sync_scan_wq;
1730 
1731 	union {
1732 		struct rtllib_rxb *RfdArray[REORDER_WIN_SIZE];
1733 		struct rtllib_rxb *stats_IndicateArray[REORDER_WIN_SIZE];
1734 		struct rtllib_rxb *prxbIndicateArray[REORDER_WIN_SIZE];
1735 		struct {
1736 			struct sw_chnl_cmd PreCommonCmd[MAX_PRECMD_CNT];
1737 			struct sw_chnl_cmd PostCommonCmd[MAX_POSTCMD_CNT];
1738 			struct sw_chnl_cmd RfDependCmd[MAX_RFDEPENDCMD_CNT];
1739 		};
1740 	};
1741 
1742 	/* Callback functions */
1743 	void (*set_security)(struct net_device *dev,
1744 			     struct rtllib_security *sec);
1745 
1746 	/* Used to TX data frame by using txb structs.
1747 	 * this is not used if in the softmac_features
1748 	 * is set the flag IEEE_SOFTMAC_TX_QUEUE
1749 	 */
1750 	int (*hard_start_xmit)(struct rtllib_txb *txb,
1751 			       struct net_device *dev);
1752 
1753 	int (*reset_port)(struct net_device *dev);
1754 
1755 	/* Softmac-generated frames (management) are TXed via this
1756 	 * callback if the flag IEEE_SOFTMAC_SINGLE_QUEUE is
1757 	 * not set. As some cards may have different HW queues that
1758 	 * one might want to use for data and management frames
1759 	 * the option to have two callbacks might be useful.
1760 	 * This function can't sleep.
1761 	 */
1762 	int (*softmac_hard_start_xmit)(struct sk_buff *skb,
1763 			       struct net_device *dev);
1764 
1765 	/* used instead of hard_start_xmit (not softmac_hard_start_xmit)
1766 	 * if the IEEE_SOFTMAC_TX_QUEUE feature is used to TX data
1767 	 * frames. If the option IEEE_SOFTMAC_SINGLE_QUEUE is also set
1768 	 * then also management frames are sent via this callback.
1769 	 * This function can't sleep.
1770 	 */
1771 	void (*softmac_data_hard_start_xmit)(struct sk_buff *skb,
1772 			       struct net_device *dev, int rate);
1773 
1774 	/* stops the HW queue for DATA frames. Useful to avoid
1775 	 * waste time to TX data frame when we are reassociating
1776 	 * This function can sleep.
1777 	 */
1778 	void (*data_hard_stop)(struct net_device *dev);
1779 
1780 	/* OK this is complementing to data_poll_hard_stop */
1781 	void (*data_hard_resume)(struct net_device *dev);
1782 
1783 	/* ask to the driver to retune the radio.
1784 	 * This function can sleep. the driver should ensure
1785 	 * the radio has been switched before return.
1786 	 */
1787 	void (*set_chan)(struct net_device *dev, short ch);
1788 
1789 	void (*rtllib_start_hw_scan)(struct net_device *dev);
1790 	void (*rtllib_stop_hw_scan)(struct net_device *dev);
1791 
1792 	/* indicate the driver that the link state is changed
1793 	 * for example it may indicate the card is associated now.
1794 	 * Driver might be interested in this to apply RX filter
1795 	 * rules or simply light the LINK led
1796 	 */
1797 	void (*link_change)(struct net_device *dev);
1798 
1799 	/* these two function indicates to the HW when to start
1800 	 * and stop to send beacons. This is used when the
1801 	 * IEEE_SOFTMAC_BEACONS is not set. For now the
1802 	 * stop_send_bacons is NOT guaranteed to be called only
1803 	 * after start_send_beacons.
1804 	 */
1805 	void (*start_send_beacons)(struct net_device *dev);
1806 	void (*stop_send_beacons)(struct net_device *dev);
1807 
1808 	/* power save mode related */
1809 	void (*sta_wake_up)(struct net_device *dev);
1810 	void (*enter_sleep_state)(struct net_device *dev, u64 time);
1811 	short (*ps_is_queue_empty)(struct net_device *dev);
1812 	int (*handle_beacon)(struct net_device *dev,
1813 			     struct rtllib_beacon *beacon,
1814 			     struct rtllib_network *network);
1815 	int (*handle_assoc_response)(struct net_device *dev,
1816 				     struct rtllib_assoc_response_frame *resp,
1817 				     struct rtllib_network *network);
1818 
1819 
1820 	/* check whether Tx hw resource available */
1821 	short (*check_nic_enough_desc)(struct net_device *dev, int queue_index);
1822 	void (*SetBWModeHandler)(struct net_device *dev,
1823 				 enum ht_channel_width Bandwidth,
1824 				 enum ht_extchnl_offset Offset);
1825 	bool (*GetNmodeSupportBySecCfg)(struct net_device *dev);
1826 	void (*SetWirelessMode)(struct net_device *dev, u8 wireless_mode);
1827 	bool (*GetHalfNmodeSupportByAPsHandler)(struct net_device *dev);
1828 	u8   (*rtllib_ap_sec_type)(struct rtllib_device *ieee);
1829 	void (*InitialGainHandler)(struct net_device *dev, u8 Operation);
1830 	bool (*SetFwCmdHandler)(struct net_device *dev,
1831 				enum fw_cmd_io_type FwCmdIO);
1832 	void (*UpdateBeaconInterruptHandler)(struct net_device *dev,
1833 					     bool start);
1834 	void (*ScanOperationBackupHandler)(struct net_device *dev,
1835 					   u8 Operation);
1836 	void (*LedControlHandler)(struct net_device *dev,
1837 				  enum led_ctl_mode LedAction);
1838 	void (*SetHwRegHandler)(struct net_device *dev, u8 variable, u8 *val);
1839 
1840 	void (*AllowAllDestAddrHandler)(struct net_device *dev,
1841 					bool bAllowAllDA, bool WriteIntoReg);
1842 
1843 	void (*rtllib_ips_leave_wq)(struct net_device *dev);
1844 	void (*rtllib_ips_leave)(struct net_device *dev);
1845 	void (*LeisurePSLeave)(struct net_device *dev);
1846 
1847 	/* This must be the last item so that it points to the data
1848 	 * allocated beyond this structure by alloc_rtllib
1849 	 */
1850 	u8 priv[0];
1851 };
1852 
1853 #define IEEE_A	    (1<<0)
1854 #define IEEE_B	    (1<<1)
1855 #define IEEE_G	    (1<<2)
1856 #define IEEE_N_24G		  (1<<4)
1857 #define	IEEE_N_5G		  (1<<5)
1858 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
1859 
1860 /* Generate a 802.11 header */
1861 
1862 /* Uses the channel change callback directly
1863  * instead of [start/stop] scan callbacks
1864  */
1865 #define IEEE_SOFTMAC_SCAN (1<<2)
1866 
1867 /* Perform authentication and association handshake */
1868 #define IEEE_SOFTMAC_ASSOCIATE (1<<3)
1869 
1870 /* Generate probe requests */
1871 #define IEEE_SOFTMAC_PROBERQ (1<<4)
1872 
1873 /* Generate response to probe requests */
1874 #define IEEE_SOFTMAC_PROBERS (1<<5)
1875 
1876 /* The ieee802.11 stack will manage the netif queue
1877  * wake/stop for the driver, taking care of 802.11
1878  * fragmentation. See softmac.c for details.
1879  */
1880 #define IEEE_SOFTMAC_TX_QUEUE (1<<7)
1881 
1882 /* Uses only the softmac_data_hard_start_xmit
1883  * even for TX management frames.
1884  */
1885 #define IEEE_SOFTMAC_SINGLE_QUEUE (1<<8)
1886 
1887 /* Generate beacons.  The stack will enqueue beacons
1888  * to the card
1889  */
1890 #define IEEE_SOFTMAC_BEACONS (1<<6)
1891 
1892 
1893 static inline void *rtllib_priv(struct net_device *dev)
1894 {
1895 	return ((struct rtllib_device *)netdev_priv(dev))->priv;
1896 }
1897 
1898 static inline int rtllib_is_empty_essid(const char *essid, int essid_len)
1899 {
1900 	/* Single white space is for Linksys APs */
1901 	if (essid_len == 1 && essid[0] == ' ')
1902 		return 1;
1903 
1904 	/* Otherwise, if the entire essid is 0, we assume it is hidden */
1905 	while (essid_len) {
1906 		essid_len--;
1907 		if (essid[essid_len] != '\0')
1908 			return 0;
1909 	}
1910 
1911 	return 1;
1912 }
1913 
1914 static inline int rtllib_get_hdrlen(u16 fc)
1915 {
1916 	int hdrlen = RTLLIB_3ADDR_LEN;
1917 
1918 	switch (WLAN_FC_GET_TYPE(fc)) {
1919 	case RTLLIB_FTYPE_DATA:
1920 		if ((fc & RTLLIB_FCTL_FROMDS) && (fc & RTLLIB_FCTL_TODS))
1921 			hdrlen = RTLLIB_4ADDR_LEN; /* Addr4 */
1922 		if (RTLLIB_QOS_HAS_SEQ(fc))
1923 			hdrlen += 2; /* QOS ctrl*/
1924 		break;
1925 	case RTLLIB_FTYPE_CTL:
1926 		switch (WLAN_FC_GET_STYPE(fc)) {
1927 		case RTLLIB_STYPE_CTS:
1928 		case RTLLIB_STYPE_ACK:
1929 			hdrlen = RTLLIB_1ADDR_LEN;
1930 			break;
1931 		default:
1932 			hdrlen = RTLLIB_2ADDR_LEN;
1933 			break;
1934 		}
1935 		break;
1936 	}
1937 
1938 	return hdrlen;
1939 }
1940 
1941 static inline u8 *rtllib_get_payload(struct rtllib_hdr *hdr)
1942 {
1943 	switch (rtllib_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
1944 	case RTLLIB_1ADDR_LEN:
1945 		return ((struct rtllib_hdr_1addr *)hdr)->payload;
1946 	case RTLLIB_2ADDR_LEN:
1947 		return ((struct rtllib_hdr_2addr *)hdr)->payload;
1948 	case RTLLIB_3ADDR_LEN:
1949 		return ((struct rtllib_hdr_3addr *)hdr)->payload;
1950 	case RTLLIB_4ADDR_LEN:
1951 		return ((struct rtllib_hdr_4addr *)hdr)->payload;
1952 	}
1953 	return NULL;
1954 }
1955 
1956 static inline int rtllib_is_ofdm_rate(u8 rate)
1957 {
1958 	switch (rate & ~RTLLIB_BASIC_RATE_MASK) {
1959 	case RTLLIB_OFDM_RATE_6MB:
1960 	case RTLLIB_OFDM_RATE_9MB:
1961 	case RTLLIB_OFDM_RATE_12MB:
1962 	case RTLLIB_OFDM_RATE_18MB:
1963 	case RTLLIB_OFDM_RATE_24MB:
1964 	case RTLLIB_OFDM_RATE_36MB:
1965 	case RTLLIB_OFDM_RATE_48MB:
1966 	case RTLLIB_OFDM_RATE_54MB:
1967 		return 1;
1968 	}
1969 	return 0;
1970 }
1971 
1972 static inline int rtllib_is_cck_rate(u8 rate)
1973 {
1974 	switch (rate & ~RTLLIB_BASIC_RATE_MASK) {
1975 	case RTLLIB_CCK_RATE_1MB:
1976 	case RTLLIB_CCK_RATE_2MB:
1977 	case RTLLIB_CCK_RATE_5MB:
1978 	case RTLLIB_CCK_RATE_11MB:
1979 		return 1;
1980 	}
1981 	return 0;
1982 }
1983 
1984 
1985 /* rtllib.c */
1986 void free_rtllib(struct net_device *dev);
1987 struct net_device *alloc_rtllib(int sizeof_priv);
1988 
1989 /* rtllib_tx.c */
1990 
1991 int rtllib_encrypt_fragment(
1992 	struct rtllib_device *ieee,
1993 	struct sk_buff *frag,
1994 	int hdr_len);
1995 
1996 int rtllib_xmit(struct sk_buff *skb,  struct net_device *dev);
1997 void rtllib_txb_free(struct rtllib_txb *);
1998 
1999 /* rtllib_rx.c */
2000 int rtllib_rx(struct rtllib_device *ieee, struct sk_buff *skb,
2001 	      struct rtllib_rx_stats *rx_stats);
2002 void rtllib_rx_probe_rq(struct rtllib_device *ieee,
2003 			struct sk_buff *skb);
2004 int rtllib_legal_channel(struct rtllib_device *rtllib, u8 channel);
2005 
2006 /* rtllib_wx.c */
2007 int rtllib_wx_get_scan(struct rtllib_device *ieee,
2008 		       struct iw_request_info *info,
2009 		       union iwreq_data *wrqu, char *key);
2010 int rtllib_wx_set_encode(struct rtllib_device *ieee,
2011 			 struct iw_request_info *info,
2012 			 union iwreq_data *wrqu, char *key);
2013 int rtllib_wx_get_encode(struct rtllib_device *ieee,
2014 			 struct iw_request_info *info,
2015 			 union iwreq_data *wrqu, char *key);
2016 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
2017 			     struct iw_request_info *info,
2018 			     union iwreq_data *wrqu, char *extra);
2019 int rtllib_wx_set_auth(struct rtllib_device *ieee,
2020 		       struct iw_request_info *info,
2021 		       struct iw_param *data, char *extra);
2022 int rtllib_wx_set_mlme(struct rtllib_device *ieee,
2023 		       struct iw_request_info *info,
2024 		       union iwreq_data *wrqu, char *extra);
2025 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len);
2026 
2027 /* rtllib_softmac.c */
2028 int rtllib_rx_frame_softmac(struct rtllib_device *ieee, struct sk_buff *skb,
2029 			    struct rtllib_rx_stats *rx_stats, u16 type,
2030 			    u16 stype);
2031 void rtllib_softmac_new_net(struct rtllib_device *ieee,
2032 			    struct rtllib_network *net);
2033 
2034 void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn);
2035 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee);
2036 
2037 void rtllib_stop_send_beacons(struct rtllib_device *ieee);
2038 void notify_wx_assoc_event(struct rtllib_device *ieee);
2039 void rtllib_start_ibss(struct rtllib_device *ieee);
2040 void rtllib_softmac_init(struct rtllib_device *ieee);
2041 void rtllib_softmac_free(struct rtllib_device *ieee);
2042 void rtllib_disassociate(struct rtllib_device *ieee);
2043 void rtllib_stop_scan(struct rtllib_device *ieee);
2044 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan);
2045 void rtllib_stop_scan_syncro(struct rtllib_device *ieee);
2046 void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh);
2047 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr);
2048 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee);
2049 void rtllib_start_protocol(struct rtllib_device *ieee);
2050 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown);
2051 
2052 void rtllib_EnableNetMonitorMode(struct net_device *dev, bool bInitState);
2053 void rtllib_DisableNetMonitorMode(struct net_device *dev, bool bInitState);
2054 void rtllib_EnableIntelPromiscuousMode(struct net_device *dev, bool bInitState);
2055 void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
2056 					bool bInitState);
2057 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee,
2058 				  u8 mesh_flag, u8 shutdown);
2059 void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag);
2060 
2061 void rtllib_reset_queue(struct rtllib_device *ieee);
2062 void rtllib_wake_all_queues(struct rtllib_device *ieee);
2063 void rtllib_stop_all_queues(struct rtllib_device *ieee);
2064 struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee);
2065 void rtllib_start_send_beacons(struct rtllib_device *ieee);
2066 void rtllib_stop_send_beacons(struct rtllib_device *ieee);
2067 int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee,
2068 				struct iw_point *p, u8 is_mesh);
2069 
2070 void notify_wx_assoc_event(struct rtllib_device *ieee);
2071 void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success);
2072 
2073 void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee);
2074 u8 rtllib_ap_sec_type(struct rtllib_device *ieee);
2075 
2076 /* rtllib_softmac_wx.c */
2077 
2078 int rtllib_wx_get_wap(struct rtllib_device *ieee, struct iw_request_info *info,
2079 		      union iwreq_data *wrqu, char *ext);
2080 
2081 int rtllib_wx_set_wap(struct rtllib_device *ieee, struct iw_request_info *info,
2082 		      union iwreq_data *awrq, char *extra);
2083 
2084 int rtllib_wx_get_essid(struct rtllib_device *ieee, struct iw_request_info *a,
2085 			union iwreq_data *wrqu, char *b);
2086 
2087 int rtllib_wx_set_rate(struct rtllib_device *ieee, struct iw_request_info *info,
2088 		       union iwreq_data *wrqu, char *extra);
2089 
2090 int rtllib_wx_get_rate(struct rtllib_device *ieee, struct iw_request_info *info,
2091 		       union iwreq_data *wrqu, char *extra);
2092 
2093 int rtllib_wx_set_mode(struct rtllib_device *ieee, struct iw_request_info *a,
2094 		       union iwreq_data *wrqu, char *b);
2095 
2096 int rtllib_wx_set_scan(struct rtllib_device *ieee, struct iw_request_info *a,
2097 		       union iwreq_data *wrqu, char *b);
2098 
2099 int rtllib_wx_set_essid(struct rtllib_device *ieee, struct iw_request_info *a,
2100 			union iwreq_data *wrqu, char *extra);
2101 
2102 int rtllib_wx_get_mode(struct rtllib_device *ieee, struct iw_request_info *a,
2103 		       union iwreq_data *wrqu, char *b);
2104 
2105 int rtllib_wx_set_freq(struct rtllib_device *ieee, struct iw_request_info *a,
2106 		       union iwreq_data *wrqu, char *b);
2107 
2108 int rtllib_wx_get_freq(struct rtllib_device *ieee, struct iw_request_info *a,
2109 		       union iwreq_data *wrqu, char *b);
2110 void rtllib_wx_sync_scan_wq(void *data);
2111 
2112 int rtllib_wx_set_rawtx(struct rtllib_device *ieee,
2113 			struct iw_request_info *info,
2114 			union iwreq_data *wrqu, char *extra);
2115 
2116 int rtllib_wx_get_name(struct rtllib_device *ieee, struct iw_request_info *info,
2117 		       union iwreq_data *wrqu, char *extra);
2118 
2119 int rtllib_wx_set_power(struct rtllib_device *ieee,
2120 			struct iw_request_info *info,
2121 			union iwreq_data *wrqu, char *extra);
2122 
2123 int rtllib_wx_get_power(struct rtllib_device *ieee,
2124 			struct iw_request_info *info,
2125 			union iwreq_data *wrqu, char *extra);
2126 
2127 int rtllib_wx_set_rts(struct rtllib_device *ieee, struct iw_request_info *info,
2128 		      union iwreq_data *wrqu, char *extra);
2129 
2130 int rtllib_wx_get_rts(struct rtllib_device *ieee, struct iw_request_info *info,
2131 		      union iwreq_data *wrqu, char *extra);
2132 #define MAX_RECEIVE_BUFFER_SIZE 9100
2133 
2134 void HTSetConnectBwMode(struct rtllib_device *ieee,
2135 			enum ht_channel_width Bandwidth,
2136 			enum ht_extchnl_offset Offset);
2137 void HTUpdateDefaultSetting(struct rtllib_device *ieee);
2138 void HTConstructCapabilityElement(struct rtllib_device *ieee,
2139 				  u8 *posHTCap, u8 *len,
2140 				  u8 isEncrypt, bool bAssoc);
2141 void HTConstructInfoElement(struct rtllib_device *ieee,
2142 			    u8 *posHTInfo, u8 *len, u8 isEncrypt);
2143 void HTConstructRT2RTAggElement(struct rtllib_device *ieee,
2144 				u8 *posRT2RTAgg, u8 *len);
2145 void HTOnAssocRsp(struct rtllib_device *ieee);
2146 void HTInitializeHTInfo(struct rtllib_device *ieee);
2147 void HTInitializeBssDesc(struct bss_ht *pBssHT);
2148 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
2149 				   struct rtllib_network *pNetwork);
2150 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
2151 				     struct rtllib_network *pNetwork);
2152 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
2153 		       u8 *pMCSFilter);
2154 extern u8 MCS_FILTER_ALL[];
2155 extern u16 MCS_DATA_RATE[2][2][77];
2156 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame);
2157 void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo);
2158 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee);
2159 u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate);
2160 int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb);
2161 int rtllib_rx_ADDBARsp(struct rtllib_device *ieee, struct sk_buff *skb);
2162 int rtllib_rx_DELBA(struct rtllib_device *ieee, struct sk_buff *skb);
2163 void TsInitAddBA(struct rtllib_device *ieee, struct tx_ts_record *pTS,
2164 		 u8 Policy, u8 bOverwritePending);
2165 void TsInitDelBA(struct rtllib_device *ieee,
2166 		 struct ts_common_info *pTsCommonInfo,
2167 		 enum tr_select TxRxSelect);
2168 void BaSetupTimeOut(unsigned long data);
2169 void TxBaInactTimeout(unsigned long data);
2170 void RxBaInactTimeout(unsigned long data);
2171 void ResetBaEntry(struct ba_record *pBA);
2172 bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS, u8 *Addr,
2173 	   u8 TID, enum tr_select TxRxSelect, bool bAddNewTs);
2174 void TSInitialize(struct rtllib_device *ieee);
2175 void TsStartAddBaProcess(struct rtllib_device *ieee,
2176 			 struct tx_ts_record *pTxTS);
2177 void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr);
2178 void RemoveAllTS(struct rtllib_device *ieee);
2179 
2180 extern const long rtllib_wlan_frequencies[];
2181 
2182 static inline const char *escape_essid(const char *essid, u8 essid_len)
2183 {
2184 	static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
2185 
2186 	if (rtllib_is_empty_essid(essid, essid_len)) {
2187 		memcpy(escaped, "<hidden>", sizeof("<hidden>"));
2188 		return escaped;
2189 	}
2190 
2191 	snprintf(escaped, sizeof(escaped), "%*pEn", essid_len, essid);
2192 	return escaped;
2193 }
2194 
2195 /* fun with the built-in rtllib stack... */
2196 bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn);
2197 
2198 
2199 /* For the function is more related to hardware setting, it's better to use the
2200  * ieee handler to refer to it.
2201  */
2202 void rtllib_FlushRxTsPendingPkts(struct rtllib_device *ieee,
2203 				 struct rx_ts_record *pTS);
2204 int rtllib_parse_info_param(struct rtllib_device *ieee,
2205 			    struct rtllib_info_element *info_element,
2206 			    u16 length,
2207 			    struct rtllib_network *network,
2208 			    struct rtllib_rx_stats *stats);
2209 
2210 void rtllib_indicate_packets(struct rtllib_device *ieee,
2211 			     struct rtllib_rxb **prxbIndicateArray, u8  index);
2212 void HTUseDefaultSetting(struct rtllib_device *ieee);
2213 #define RT_ASOC_RETRY_LIMIT	5
2214 u8 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee);
2215 #define SEM_DOWN_IEEE_WX(psem) down(psem)
2216 #define SEM_UP_IEEE_WX(psem) up(psem)
2217 
2218 #endif /* RTLLIB_H */
2219