1 /*
2  * Copyright (c) 2010 Broadcom Corporation
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef _BRCM_MAIN_H_
18 #define _BRCM_MAIN_H_
19 
20 #include <linux/etherdevice.h>
21 
22 #include <brcmu_utils.h>
23 #include "types.h"
24 #include "d11.h"
25 #include "scb.h"
26 
27 #define	INVCHANNEL		255	/* invalid channel */
28 
29 /* max # brcms_c_module_register() calls */
30 #define BRCMS_MAXMODULES	22
31 
32 #define SEQNUM_SHIFT		4
33 #define SEQNUM_MAX		0x1000
34 
35 #define NTXRATE			64	/* # tx MPDUs rate is reported for */
36 
37 /* Maximum wait time for a MAC suspend */
38 /* uS: 83mS is max packet time (64KB ampdu @ 6Mbps) */
39 #define	BRCMS_MAX_MAC_SUSPEND	83000
40 
41 /* responses for probe requests older that this are tossed, zero to disable */
42 #define BRCMS_PRB_RESP_TIMEOUT	0	/* Disable probe response timeout */
43 
44 /* transmit buffer max headroom for protocol headers */
45 #define TXOFF (D11_TXH_LEN + D11_PHY_HDR_LEN)
46 
47 /* Macros for doing definition and get/set of bitfields
48  * Usage example, e.g. a three-bit field (bits 4-6):
49  *    #define <NAME>_M	BITFIELD_MASK(3)
50  *    #define <NAME>_S	4
51  * ...
52  *    regval = R_REG(osh, &regs->regfoo);
53  *    field = GFIELD(regval, <NAME>);
54  *    regval = SFIELD(regval, <NAME>, 1);
55  *    W_REG(osh, &regs->regfoo, regval);
56  */
57 #define BITFIELD_MASK(width) \
58 		(((unsigned)1 << (width)) - 1)
59 #define GFIELD(val, field) \
60 		(((val) >> field ## _S) & field ## _M)
61 #define SFIELD(val, field, bits) \
62 		(((val) & (~(field ## _M << field ## _S))) | \
63 		 ((unsigned)(bits) << field ## _S))
64 
65 #define	SW_TIMER_MAC_STAT_UPD		30	/* periodic MAC stats update */
66 
67 /* max # supported core revisions (0 .. MAXCOREREV - 1) */
68 #define	MAXCOREREV		28
69 
70 /* Double check that unsupported cores are not enabled */
71 #if CONF_MSK(D11CONF, 0x4f) || CONF_GE(D11CONF, MAXCOREREV)
72 #error "Configuration for D11CONF includes unsupported versions."
73 #endif				/* Bad versions */
74 
75 /* values for shortslot_override */
76 #define BRCMS_SHORTSLOT_AUTO	-1 /* Driver will manage Shortslot setting */
77 #define BRCMS_SHORTSLOT_OFF	0  /* Turn off short slot */
78 #define BRCMS_SHORTSLOT_ON	1  /* Turn on short slot */
79 
80 /* value for short/long and mixmode/greenfield preamble */
81 #define BRCMS_LONG_PREAMBLE	(0)
82 #define BRCMS_SHORT_PREAMBLE	(1 << 0)
83 #define BRCMS_GF_PREAMBLE		(1 << 1)
84 #define BRCMS_MM_PREAMBLE		(1 << 2)
85 #define BRCMS_IS_MIMO_PREAMBLE(_pre) (((_pre) == BRCMS_GF_PREAMBLE) || \
86 				      ((_pre) == BRCMS_MM_PREAMBLE))
87 
88 /* TxFrameID */
89 /* seq and frag bits: SEQNUM_SHIFT, FRAGNUM_MASK (802.11.h) */
90 /* rate epoch bits: TXFID_RATE_SHIFT, TXFID_RATE_MASK ((wlc_rate.c) */
91 #define TXFID_QUEUE_MASK	0x0007	/* Bits 0-2 */
92 #define TXFID_SEQ_MASK		0x7FE0	/* Bits 5-15 */
93 #define TXFID_SEQ_SHIFT		5	/* Number of bit shifts */
94 #define	TXFID_RATE_PROBE_MASK	0x8000	/* Bit 15 for rate probe */
95 #define TXFID_RATE_MASK		0x0018	/* Mask for bits 3 and 4 */
96 #define TXFID_RATE_SHIFT	3	/* Shift 3 bits for rate mask */
97 
98 /* promote boardrev */
99 #define BOARDREV_PROMOTABLE	0xFF	/* from */
100 #define BOARDREV_PROMOTED	1	/* to */
101 
102 #define DATA_BLOCK_TX_SUPR	(1 << 4)
103 
104 /* Ucode MCTL_WAKE override bits */
105 #define BRCMS_WAKE_OVERRIDE_CLKCTL	0x01
106 #define BRCMS_WAKE_OVERRIDE_PHYREG	0x02
107 #define BRCMS_WAKE_OVERRIDE_MACSUSPEND	0x04
108 #define BRCMS_WAKE_OVERRIDE_TXFIFO	0x08
109 #define BRCMS_WAKE_OVERRIDE_FORCEFAST	0x10
110 
111 /* stuff pulled in from wlc.c */
112 
113 /* Interrupt bit error summary.  Don't include I_RU: we refill DMA at other
114  * times; and if we run out, constant I_RU interrupts may cause lockup.  We
115  * will still get error counts from rx0ovfl.
116  */
117 #define	I_ERRORS	(I_PC | I_PD | I_DE | I_RO | I_XU)
118 /* default software intmasks */
119 #define	DEF_RXINTMASK	(I_RI)	/* enable rx int on rxfifo only */
120 #define	DEF_MACINTMASK	(MI_TXSTOP | MI_TBTT | MI_ATIMWINEND | MI_PMQ | \
121 			 MI_PHYTXERR | MI_DMAINT | MI_TFS | MI_BG_NOISE | \
122 			 MI_CCA | MI_TO | MI_GP0 | MI_RFDISABLE | MI_PWRUP)
123 
124 #define	MAXTXPKTS		6	/* max # pkts pending */
125 
126 /* frameburst */
127 #define	MAXTXFRAMEBURST		8 /* vanilla xpress mode: max frames/burst */
128 #define	MAXFRAMEBURST_TXOP	10000	/* Frameburst TXOP in usec */
129 
130 #define	NFIFO			6	/* # tx/rx fifopairs */
131 
132 /* PLL requests */
133 
134 /* pll is shared on old chips */
135 #define BRCMS_PLLREQ_SHARED	0x1
136 /* hold pll for radio monitor register checking */
137 #define BRCMS_PLLREQ_RADIO_MON	0x2
138 /* hold/release pll for some short operation */
139 #define BRCMS_PLLREQ_FLIP		0x4
140 
141 #define	CHANNEL_BANDUNIT(wlc, ch) \
142 	(((ch) <= CH_MAX_2G_CHANNEL) ? BAND_2G_INDEX : BAND_5G_INDEX)
143 
144 #define	OTHERBANDUNIT(wlc) \
145 	((uint)((wlc)->band->bandunit ? BAND_2G_INDEX : BAND_5G_INDEX))
146 
147 /*
148  * 802.11 protection information
149  *
150  * _g: use g spec protection, driver internal.
151  * g_override: override for use of g spec protection.
152  * gmode_user: user config gmode, operating band->gmode is different.
153  * overlap: Overlap BSS/IBSS protection for both 11g and 11n.
154  * nmode_user: user config nmode, operating pub->nmode is different.
155  * n_cfg: use OFDM protection on MIMO frames.
156  * n_cfg_override: override for use of N protection.
157  * nongf: non-GF present protection.
158  * nongf_override: override for use of GF protection.
159  * n_pam_override: override for preamble: MM or GF.
160  * n_obss: indicated OBSS Non-HT STA present.
161 */
162 struct brcms_protection {
163 	bool _g;
164 	s8 g_override;
165 	u8 gmode_user;
166 	s8 overlap;
167 	s8 nmode_user;
168 	s8 n_cfg;
169 	s8 n_cfg_override;
170 	bool nongf;
171 	s8 nongf_override;
172 	s8 n_pam_override;
173 	bool n_obss;
174 };
175 
176 /*
177  * anything affecting the single/dual streams/antenna operation
178  *
179  * hw_txchain: HW txchain bitmap cfg.
180  * txchain: txchain bitmap being used.
181  * txstreams: number of txchains being used.
182  * hw_rxchain: HW rxchain bitmap cfg.
183  * rxchain: rxchain bitmap being used.
184  * rxstreams: number of rxchains being used.
185  * ant_rx_ovr: rx antenna override.
186  * txant: userTx antenna setting.
187  * phytxant: phyTx antenna setting in txheader.
188  * ss_opmode: singlestream Operational mode, 0:siso; 1:cdd.
189  * ss_algosel_auto: if true, use wlc->stf->ss_algo_channel;
190  *			else use wlc->band->stf->ss_mode_band.
191  * ss_algo_channel: ss based on per-channel algo: 0: SISO, 1: CDD 2: STBC.
192  * rxchain_restore_delay: delay time to restore default rxchain.
193  * ldpc: AUTO/ON/OFF ldpc cap supported.
194  * txcore[MAX_STREAMS_SUPPORTED + 1]: bitmap of selected core for each Nsts.
195  * spatial_policy:
196  */
197 struct brcms_stf {
198 	u8 hw_txchain;
199 	u8 txchain;
200 	u8 txstreams;
201 	u8 hw_rxchain;
202 	u8 rxchain;
203 	u8 rxstreams;
204 	u8 ant_rx_ovr;
205 	s8 txant;
206 	u16 phytxant;
207 	u8 ss_opmode;
208 	bool ss_algosel_auto;
209 	u16 ss_algo_channel;
210 	u8 rxchain_restore_delay;
211 	s8 ldpc;
212 	u8 txcore[MAX_STREAMS_SUPPORTED + 1];
213 	s8 spatial_policy;
214 };
215 
216 #define BRCMS_STF_SS_STBC_TX(wlc, scb) \
217 	(((wlc)->stf->txstreams > 1) && (((wlc)->band->band_stf_stbc_tx == ON) \
218 	 || (((scb)->flags & SCB_STBCCAP) && \
219 	     (wlc)->band->band_stf_stbc_tx == AUTO && \
220 	     isset(&((wlc)->stf->ss_algo_channel), PHY_TXC1_MODE_STBC))))
221 
222 #define BRCMS_STBC_CAP_PHY(wlc) (BRCMS_ISNPHY(wlc->band) && \
223 				 NREV_GE(wlc->band->phyrev, 3))
224 
225 #define BRCMS_SGI_CAP_PHY(wlc) ((BRCMS_ISNPHY(wlc->band) && \
226 				 NREV_GE(wlc->band->phyrev, 3)) || \
227 				BRCMS_ISLCNPHY(wlc->band))
228 
229 #define BRCMS_CHAN_PHYTYPE(x)     (((x) & RXS_CHAN_PHYTYPE_MASK) \
230 				   >> RXS_CHAN_PHYTYPE_SHIFT)
231 #define BRCMS_CHAN_CHANNEL(x)     (((x) & RXS_CHAN_ID_MASK) \
232 				   >> RXS_CHAN_ID_SHIFT)
233 
234 /*
235  * core state (mac)
236  */
237 struct brcms_core {
238 	uint coreidx;		/* # sb enumerated core */
239 
240 	/* fifo */
241 	uint *txavail[NFIFO];	/* # tx descriptors available */
242 
243 	struct macstat *macstat_snapshot;	/* mac hw prev read values */
244 };
245 
246 /*
247  * band state (phy+ana+radio)
248  */
249 struct brcms_band {
250 	int bandtype;		/* BRCM_BAND_2G, BRCM_BAND_5G */
251 	uint bandunit;		/* bandstate[] index */
252 
253 	u16 phytype;		/* phytype */
254 	u16 phyrev;
255 	u16 radioid;
256 	u16 radiorev;
257 	struct brcms_phy_pub *pi; /* pointer to phy specific information */
258 	bool abgphy_encore;
259 
260 	u8 gmode;		/* currently active gmode */
261 
262 	struct scb *hwrs_scb;	/* permanent scb for hw rateset */
263 
264 	/* band-specific copy of default_bss.rateset */
265 	struct brcms_c_rateset defrateset;
266 
267 	u8 band_stf_ss_mode;	/* Configured STF type, 0:siso; 1:cdd */
268 	s8 band_stf_stbc_tx;	/* STBC TX 0:off; 1:force on; -1:auto */
269 	/* rates supported by chip (phy-specific) */
270 	struct brcms_c_rateset hw_rateset;
271 	u8 basic_rate[BRCM_MAXRATE + 1]; /* basic rates indexed by rate */
272 	bool mimo_cap_40;	/* 40 MHz cap enabled on this band */
273 	s8 antgain;		/* antenna gain from srom */
274 
275 	u16 CWmin; /* minimum size of contention window, in unit of aSlotTime */
276 	u16 CWmax; /* maximum size of contention window, in unit of aSlotTime */
277 	struct ieee80211_supported_band band;
278 };
279 
280 /* module control blocks */
281 struct modulecb {
282 	/* module name : NULL indicates empty array member */
283 	char name[32];
284 	/* handle passed when handler 'doiovar' is called */
285 	struct brcms_info *hdl;
286 
287 	int (*down_fn)(void *handle); /* down handler. Note: the int returned
288 				       * by the down function is a count of the
289 				       * number of timers that could not be
290 				       * freed.
291 				       */
292 
293 };
294 
295 struct brcms_hw_band {
296 	int bandtype;		/* BRCM_BAND_2G, BRCM_BAND_5G */
297 	uint bandunit;		/* bandstate[] index */
298 	u16 mhfs[MHFMAX];	/* MHF array shadow */
299 	u8 bandhw_stf_ss_mode;	/* HW configured STF type, 0:siso; 1:cdd */
300 	u16 CWmin;
301 	u16 CWmax;
302 	u32 core_flags;
303 
304 	u16 phytype;		/* phytype */
305 	u16 phyrev;
306 	u16 radioid;
307 	u16 radiorev;
308 	struct brcms_phy_pub *pi; /* pointer to phy specific information */
309 	bool abgphy_encore;
310 };
311 
312 struct brcms_hardware {
313 	bool _piomode;		/* true if pio mode */
314 	struct brcms_c_info *wlc;
315 
316 	/* fifo */
317 	struct dma_pub *di[NFIFO];	/* dma handles, per fifo */
318 
319 	uint unit;		/* device instance number */
320 
321 	/* version info */
322 	u16 vendorid;	/* PCI vendor id */
323 	u16 deviceid;	/* PCI device id */
324 	uint corerev;		/* core revision */
325 	u8 sromrev;		/* version # of the srom */
326 	u16 boardrev;	/* version # of particular board */
327 	u32 boardflags;	/* Board specific flags from srom */
328 	u32 boardflags2;	/* More board flags if sromrev >= 4 */
329 	u32 machwcap;	/* MAC capabilities */
330 	u32 machwcap_backup;	/* backup of machwcap */
331 
332 	struct si_pub *sih;	/* SI handle (cookie for siutils calls) */
333 	struct bcma_device *d11core;	/* pointer to 802.11 core */
334 	struct phy_shim_info *physhim; /* phy shim layer handler */
335 	struct shared_phy *phy_sh;	/* pointer to shared phy state */
336 	struct brcms_hw_band *band;/* pointer to active per-band state */
337 	/* band state per phy/radio */
338 	struct brcms_hw_band *bandstate[MAXBANDS];
339 	u16 bmac_phytxant;	/* cache of high phytxant state */
340 	bool shortslot;		/* currently using 11g ShortSlot timing */
341 	u16 SRL;		/* 802.11 dot11ShortRetryLimit */
342 	u16 LRL;		/* 802.11 dot11LongRetryLimit */
343 	u16 SFBL;		/* Short Frame Rate Fallback Limit */
344 	u16 LFBL;		/* Long Frame Rate Fallback Limit */
345 
346 	bool up;		/* d11 hardware up and running */
347 	uint now;		/* # elapsed seconds */
348 	uint _nbands;		/* # bands supported */
349 	u16 chanspec;	/* bmac chanspec shadow */
350 
351 	uint *txavail[NFIFO];	/* # tx descriptors available */
352 	const u16 *xmtfifo_sz;	/* fifo size in 256B for each xmt fifo */
353 
354 	u32 pllreq;		/* pll requests to keep PLL on */
355 
356 	u8 suspended_fifos;	/* Which TX fifo to remain awake for */
357 	u32 maccontrol;	/* Cached value of maccontrol */
358 	uint mac_suspend_depth;	/* current depth of mac_suspend levels */
359 	u32 wake_override;	/* bit flags to force MAC to WAKE mode */
360 	u32 mute_override;	/* Prevent ucode from sending beacons */
361 	u8 etheraddr[ETH_ALEN];	/* currently configured ethernet address */
362 	bool noreset;		/* true= do not reset hw, used by WLC_OUT */
363 	bool forcefastclk;	/* true if h/w is forcing to use fast clk */
364 	bool clk;		/* core is out of reset and has clock */
365 	bool sbclk;		/* sb has clock */
366 	bool phyclk;		/* phy is out of reset and has clock */
367 
368 	bool ucode_loaded;	/* true after ucode downloaded */
369 
370 
371 	u8 hw_stf_ss_opmode;	/* STF single stream operation mode */
372 	u8 antsel_type;	/* Type of boardlevel mimo antenna switch-logic
373 				 * 0 = N/A, 1 = 2x4 board, 2 = 2x3 CB2 board
374 				 */
375 	u32 antsel_avail;	/*
376 				 * put struct antsel_info here if more info is
377 				 * needed
378 				 */
379 };
380 
381 /*
382  * Principal common driver data structure.
383  *
384  * pub: pointer to driver public state.
385  * wl: pointer to specific private state.
386  * hw: HW related state.
387  * clkreq_override: setting for clkreq for PCIE : Auto, 0, 1.
388  * fastpwrup_dly: time in us needed to bring up d11 fast clock.
389  * macintstatus: bit channel between isr and dpc.
390  * macintmask: sw runtime master macintmask value.
391  * defmacintmask: default "on" macintmask value.
392  * clk: core is out of reset and has clock.
393  * core: pointer to active io core.
394  * band: pointer to active per-band state.
395  * corestate: per-core state (one per hw core).
396  * bandstate: per-band state (one per phy/radio).
397  * qvalid: DirFrmQValid and BcMcFrmQValid.
398  * ampdu: ampdu module handler.
399  * asi: antsel module handler.
400  * cmi: channel manager module handler.
401  * vendorid: PCI vendor id.
402  * deviceid: PCI device id.
403  * ucode_rev: microcode revision.
404  * machwcap: MAC capabilities, BMAC shadow.
405  * perm_etheraddr: original sprom local ethernet address.
406  * bandlocked: disable auto multi-band switching.
407  * bandinit_pending: track band init in auto band.
408  * radio_monitor: radio timer is running.
409  * going_down: down path intermediate variable.
410  * wdtimer: timer for watchdog routine.
411  * radio_timer: timer for hw radio button monitor routine.
412  * monitor: monitor (MPDU sniffing) mode.
413  * bcnmisc_monitor: bcns promisc mode override for monitor.
414  * _rifs: enable per-packet rifs.
415  * bcn_li_bcn: beacon listen interval in # beacons.
416  * bcn_li_dtim: beacon listen interval in # dtims.
417  * WDarmed: watchdog timer is armed.
418  * WDlast: last time wlc_watchdog() was called.
419  * edcf_txop[IEEE80211_NUM_ACS]: current txop for each ac.
420  * wme_retries: per-AC retry limits.
421  * bsscfg: set of BSS configurations, idx 0 is default and always valid.
422  * cfg: the primary bsscfg (can be AP or STA).
423  * modulecb:
424  * mimoft: SIGN or 11N.
425  * cck_40txbw: 11N, cck tx b/w override when in 40MHZ mode.
426  * ofdm_40txbw: 11N, ofdm tx b/w override when in 40MHZ mode.
427  * mimo_40txbw: 11N, mimo tx b/w override when in 40MHZ mode.
428  * default_bss: configured BSS parameters.
429  * mc_fid_counter: BC/MC FIFO frame ID counter.
430  * country_default: saved country for leaving 802.11d auto-country mode.
431  * autocountry_default: initial country for 802.11d auto-country mode.
432  * prb_resp_timeout: do not send prb resp if request older
433  *		     than this, 0 = disable.
434  * home_chanspec: shared home chanspec.
435  * chanspec: target operational channel.
436  * usr_fragthresh: user configured fragmentation threshold.
437  * fragthresh[NFIFO]: per-fifo fragmentation thresholds.
438  * RTSThresh: 802.11 dot11RTSThreshold.
439  * SRL: 802.11 dot11ShortRetryLimit.
440  * LRL: 802.11 dot11LongRetryLimit.
441  * SFBL: Short Frame Rate Fallback Limit.
442  * LFBL: Long Frame Rate Fallback Limit.
443  * shortslot: currently using 11g ShortSlot timing.
444  * shortslot_override: 11g ShortSlot override.
445  * include_legacy_erp: include Legacy ERP info elt ID 47 as well as g ID 42.
446  * PLCPHdr_override: 802.11b Preamble Type override.
447  * stf:
448  * bcn_rspec: save bcn ratespec purpose.
449  * tempsense_lasttime;
450  * tx_duty_cycle_ofdm: maximum allowed duty cycle for OFDM.
451  * tx_duty_cycle_cck: maximum allowed duty cycle for CCK.
452  * wiphy:
453  * pri_scb: primary Station Control Block
454  */
455 struct brcms_c_info {
456 	struct brcms_pub *pub;
457 	struct brcms_info *wl;
458 	struct brcms_hardware *hw;
459 
460 	/* clock */
461 	u16 fastpwrup_dly;
462 
463 	/* interrupt */
464 	u32 macintstatus;
465 	u32 macintmask;
466 	u32 defmacintmask;
467 
468 	bool clk;
469 
470 	/* multiband */
471 	struct brcms_core *core;
472 	struct brcms_band *band;
473 	struct brcms_core *corestate;
474 	struct brcms_band *bandstate[MAXBANDS];
475 
476 	/* packet queue */
477 	uint qvalid;
478 
479 	struct ampdu_info *ampdu;
480 	struct antsel_info *asi;
481 	struct brcms_cm_info *cmi;
482 
483 	u16 vendorid;
484 	u16 deviceid;
485 	uint ucode_rev;
486 
487 	u8 perm_etheraddr[ETH_ALEN];
488 
489 	bool bandlocked;
490 	bool bandinit_pending;
491 
492 	bool radio_monitor;
493 	bool going_down;
494 
495 	bool beacon_template_virgin;
496 
497 	struct brcms_timer *wdtimer;
498 	struct brcms_timer *radio_timer;
499 
500 	/* promiscuous */
501 	uint filter_flags;
502 
503 	/* driver feature */
504 	bool _rifs;
505 
506 	/* AP-STA synchronization, power save */
507 	u8 bcn_li_bcn;
508 	u8 bcn_li_dtim;
509 
510 	bool WDarmed;
511 	u32 WDlast;
512 
513 	/* WME */
514 	u16 edcf_txop[IEEE80211_NUM_ACS];
515 
516 	u16 wme_retries[IEEE80211_NUM_ACS];
517 
518 	struct brcms_bss_cfg *bsscfg;
519 
520 	struct modulecb *modulecb;
521 
522 	u8 mimoft;
523 	s8 cck_40txbw;
524 	s8 ofdm_40txbw;
525 	s8 mimo_40txbw;
526 
527 	struct brcms_bss_info *default_bss;
528 
529 	u16 mc_fid_counter;
530 
531 	char country_default[BRCM_CNTRY_BUF_SZ];
532 	char autocountry_default[BRCM_CNTRY_BUF_SZ];
533 	u16 prb_resp_timeout;
534 
535 	u16 home_chanspec;
536 
537 	/* PHY parameters */
538 	u16 chanspec;
539 	u16 usr_fragthresh;
540 	u16 fragthresh[NFIFO];
541 	u16 RTSThresh;
542 	u16 SRL;
543 	u16 LRL;
544 	u16 SFBL;
545 	u16 LFBL;
546 
547 	/* network config */
548 	bool shortslot;
549 	s8 shortslot_override;
550 	bool include_legacy_erp;
551 
552 	struct brcms_protection *protection;
553 	s8 PLCPHdr_override;
554 
555 	struct brcms_stf *stf;
556 
557 	u32 bcn_rspec;
558 
559 	uint tempsense_lasttime;
560 
561 	u16 tx_duty_cycle_ofdm;
562 	u16 tx_duty_cycle_cck;
563 
564 	struct wiphy *wiphy;
565 	struct scb pri_scb;
566 	struct ieee80211_vif *vif;
567 
568 	struct sk_buff *beacon;
569 	u16 beacon_tim_offset;
570 	u16 beacon_dtim_period;
571 	struct sk_buff *probe_resp;
572 };
573 
574 /* antsel module specific state */
575 struct antsel_info {
576 	struct brcms_c_info *wlc;	/* pointer to main wlc structure */
577 	struct brcms_pub *pub;		/* pointer to public fn */
578 	u8 antsel_type;	/* Type of boardlevel mimo antenna switch-logic
579 				 * 0 = N/A, 1 = 2x4 board, 2 = 2x3 CB2 board
580 				 */
581 	u8 antsel_antswitch;	/* board level antenna switch type */
582 	bool antsel_avail;	/* Ant selection availability (SROM based) */
583 	struct brcms_antselcfg antcfg_11n; /* antenna configuration */
584 	struct brcms_antselcfg antcfg_cur; /* current antenna config (auto) */
585 };
586 
587 enum brcms_bss_type {
588 	BRCMS_TYPE_STATION,
589 	BRCMS_TYPE_AP,
590 	BRCMS_TYPE_ADHOC,
591 };
592 
593 /*
594  * BSS configuration state
595  *
596  * wlc: wlc to which this bsscfg belongs to.
597  * type: interface type
598  * SSID_len: the length of SSID
599  * SSID: SSID string
600  *
601  *
602  * BSSID: BSSID (associated)
603  * cur_etheraddr: h/w address
604  * flags: BSSCFG flags; see below
605  *
606  * current_bss: BSS parms in ASSOCIATED state
607  *
608  *
609  * ID: 'unique' ID of this bsscfg, assigned at bsscfg allocation
610  */
611 struct brcms_bss_cfg {
612 	struct brcms_c_info *wlc;
613 	enum brcms_bss_type type;
614 	u8 SSID_len;
615 	u8 SSID[IEEE80211_MAX_SSID_LEN];
616 	u8 BSSID[ETH_ALEN];
617 	struct brcms_bss_info *current_bss;
618 };
619 
620 int brcms_c_txfifo(struct brcms_c_info *wlc, uint fifo, struct sk_buff *p);
621 int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo,
622 			   uint *blocks);
623 
624 int brcms_c_set_gmode(struct brcms_c_info *wlc, u8 gmode, bool config);
625 void brcms_c_mac_promisc(struct brcms_c_info *wlc, uint filter_flags);
626 u16 brcms_c_calc_lsig_len(struct brcms_c_info *wlc, u32 ratespec, uint mac_len);
627 u32 brcms_c_rspec_to_rts_rspec(struct brcms_c_info *wlc, u32 rspec,
628 			       bool use_rspec, u16 mimo_ctlchbw);
629 u16 brcms_c_compute_rtscts_dur(struct brcms_c_info *wlc, bool cts_only,
630 			       u32 rts_rate, u32 frame_rate,
631 			       u8 rts_preamble_type, u8 frame_preamble_type,
632 			       uint frame_len, bool ba);
633 void brcms_c_inval_dma_pkts(struct brcms_hardware *hw,
634 			    struct ieee80211_sta *sta, void (*dma_callback_fn));
635 void brcms_c_update_probe_resp(struct brcms_c_info *wlc, bool suspend);
636 int brcms_c_set_nmode(struct brcms_c_info *wlc);
637 void brcms_c_beacon_phytxctl_txant_upd(struct brcms_c_info *wlc, u32 bcn_rate);
638 void brcms_b_antsel_type_set(struct brcms_hardware *wlc_hw, u8 antsel_type);
639 void brcms_b_set_chanspec(struct brcms_hardware *wlc_hw, u16 chanspec,
640 			  bool mute, struct txpwr_limits *txpwr);
641 void brcms_b_write_shm(struct brcms_hardware *wlc_hw, uint offset, u16 v);
642 u16 brcms_b_read_shm(struct brcms_hardware *wlc_hw, uint offset);
643 void brcms_b_mhf(struct brcms_hardware *wlc_hw, u8 idx, u16 mask, u16 val,
644 		 int bands);
645 void brcms_b_corereset(struct brcms_hardware *wlc_hw, u32 flags);
646 void brcms_b_mctrl(struct brcms_hardware *wlc_hw, u32 mask, u32 val);
647 void brcms_b_phy_reset(struct brcms_hardware *wlc_hw);
648 void brcms_b_bw_set(struct brcms_hardware *wlc_hw, u16 bw);
649 void brcms_b_core_phypll_reset(struct brcms_hardware *wlc_hw);
650 void brcms_c_ucode_wake_override_set(struct brcms_hardware *wlc_hw,
651 				     u32 override_bit);
652 void brcms_c_ucode_wake_override_clear(struct brcms_hardware *wlc_hw,
653 				       u32 override_bit);
654 void brcms_b_write_template_ram(struct brcms_hardware *wlc_hw, int offset,
655 				int len, void *buf);
656 u16 brcms_b_rate_shm_offset(struct brcms_hardware *wlc_hw, u8 rate);
657 void brcms_b_copyto_objmem(struct brcms_hardware *wlc_hw, uint offset,
658 			   const void *buf, int len, u32 sel);
659 void brcms_b_copyfrom_objmem(struct brcms_hardware *wlc_hw, uint offset,
660 			     void *buf, int len, u32 sel);
661 void brcms_b_switch_macfreq(struct brcms_hardware *wlc_hw, u8 spurmode);
662 u16 brcms_b_get_txant(struct brcms_hardware *wlc_hw);
663 void brcms_b_phyclk_fgc(struct brcms_hardware *wlc_hw, bool clk);
664 void brcms_b_macphyclk_set(struct brcms_hardware *wlc_hw, bool clk);
665 void brcms_b_core_phypll_ctl(struct brcms_hardware *wlc_hw, bool on);
666 void brcms_b_txant_set(struct brcms_hardware *wlc_hw, u16 phytxant);
667 void brcms_b_band_stf_ss_set(struct brcms_hardware *wlc_hw, u8 stf_mode);
668 void brcms_c_init_scb(struct scb *scb);
669 
670 #endif				/* _BRCM_MAIN_H_ */
671