2 * Copyright (c) 2010 Broadcom Corporation
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.
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.
16 #include <linux/kernel.h>
17 #include <linux/ctype.h>
18 #include <linux/etherdevice.h>
19 #include <net/mac80211.h>
35 #include "wlc_types.h"
41 #include "wlc_bsscfg.h"
42 #include "phy/wlc_phy_hal.h"
43 #include "wlc_channel.h"
44 #include "wlc_mac80211.h"
46 #include "wlc_phy_hal.h"
47 #include "wlc_phy_shim.h"
48 #include "wlc_antsel.h"
50 #include "wlc_ampdu.h"
51 #include "wl_export.h"
52 #include "wlc_alloc.h"
56 * Disable statistics counting for WME
58 #define WLCNTSET(a, b)
60 #define WLCNTADD(a, b)
65 #define RSN_CAP_4_REPLAY_CNTRS 2
66 #define RSN_CAP_16_REPLAY_CNTRS 3
68 #define WPA_CAP_4_REPLAY_CNTRS RSN_CAP_4_REPLAY_CNTRS
69 #define WPA_CAP_16_REPLAY_CNTRS RSN_CAP_16_REPLAY_CNTRS
72 * Indication for txflowcontrol that all priority bits in
73 * TXQ_STOP_FOR_PRIOFC_MASK are to be considered.
78 * buffer length needed for wlc_format_ssid
79 * 32 SSID chars, max of 4 chars for each SSID char "\xFF", plus NULL.
81 #define SSID_FMT_BUF_LEN ((4 * IEEE80211_MAX_SSID_LEN) + 1)
83 #define TIMER_INTERVAL_WATCHDOG 1000 /* watchdog timer, in unit of ms */
84 #define TIMER_INTERVAL_RADIOCHK 800 /* radio monitor timer, in unit of ms */
86 #ifndef WLC_MPC_MAX_DELAYCNT
87 #define WLC_MPC_MAX_DELAYCNT 10 /* Max MPC timeout, in unit of watchdog */
89 #define WLC_MPC_MIN_DELAYCNT 1 /* Min MPC timeout, in unit of watchdog */
90 #define WLC_MPC_THRESHOLD 3 /* MPC count threshold level */
92 #define BEACON_INTERVAL_DEFAULT 100 /* beacon interval, in unit of 1024TU */
93 #define DTIM_INTERVAL_DEFAULT 3 /* DTIM interval, in unit of beacon interval */
95 /* Scale down delays to accommodate QT slow speed */
96 #define BEACON_INTERVAL_DEF_QT 20 /* beacon interval, in unit of 1024TU */
97 #define DTIM_INTERVAL_DEF_QT 1 /* DTIM interval, in unit of beacon interval */
99 #define TBTT_ALIGN_LEEWAY_US 100 /* min leeway before first TBTT in us */
102 * driver maintains internal 'tick'(wlc->pub->now) which increments in 1s OS timer(soft
103 * watchdog) it is not a wall clock and won't increment when driver is in "down" state
104 * this low resolution driver tick can be used for maintenance tasks such as phy
105 * calibration and scb update
108 /* watchdog trigger mode: OSL timer or TBTT */
109 #define WLC_WATCHDOG_TBTT(wlc) \
110 (wlc->stas_associated > 0 && wlc->PM != PM_OFF && wlc->pub->align_wd_tbtt)
112 /* To inform the ucode of the last mcast frame posted so that it can clear moredata bit */
113 #define BCMCFID(wlc, fid) wlc_bmac_write_shm((wlc)->hw, M_BCMC_FID, (fid))
115 #define WLC_WAR16165(wlc) (wlc->pub->sih->bustype == PCI_BUS && \
116 (!AP_ENAB(wlc->pub)) && (wlc->war16165))
126 /* Find basic rate for a given rate */
127 #define WLC_BASIC_RATE(wlc, rspec) (IS_MCS(rspec) ? \
128 (wlc)->band->basic_rate[mcs_table[rspec & RSPEC_RATE_MASK].leg_ofdm] : \
129 (wlc)->band->basic_rate[rspec & RSPEC_RATE_MASK])
131 #define FRAMETYPE(r, mimoframe) (IS_MCS(r) ? mimoframe : (IS_CCK(r) ? FT_CCK : FT_OFDM))
133 #define RFDISABLE_DEFAULT 10000000 /* rfdisable delay timer 500 ms, runs of ALP clock */
135 #define WLC_TEMPSENSE_PERIOD 10 /* 10 second timeout */
137 #define SCAN_IN_PROGRESS(x) 0
139 #define EPI_VERSION_NUM 0x054b0b00
142 /* pointer to most recently allocated wl/wlc */
143 static struct wlc_info *wlc_info_dbg = (struct wlc_info *) (NULL);
148 /* Parameter IDs, for use only internally to wlc -- in the wlc_iovars
149 * table and by the wlc_doiovar() function. No ordering is imposed:
150 * the table is keyed by name, and the function uses a switch.
156 IOV_BCN_LI_BCN, /* Beacon listen interval in # of beacons */
157 IOV_LAST /* In case of a need to check max ID number */
160 const bcm_iovar_t wlc_iovars[] = {
161 {"mpc", IOV_MPC, (0), IOVT_BOOL, 0},
162 {"rtsthresh", IOV_RTSTHRESH, (IOVF_WHL), IOVT_UINT16, 0},
163 {"qtxpower", IOV_QTXPOWER, (IOVF_WHL), IOVT_UINT32, 0},
164 {"bcn_li_bcn", IOV_BCN_LI_BCN, (0), IOVT_UINT8, 0},
168 const u8 prio2fifo[NUMPRIO] = {
169 TX_AC_BE_FIFO, /* 0 BE AC_BE Best Effort */
170 TX_AC_BK_FIFO, /* 1 BK AC_BK Background */
171 TX_AC_BK_FIFO, /* 2 -- AC_BK Background */
172 TX_AC_BE_FIFO, /* 3 EE AC_BE Best Effort */
173 TX_AC_VI_FIFO, /* 4 CL AC_VI Video */
174 TX_AC_VI_FIFO, /* 5 VI AC_VI Video */
175 TX_AC_VO_FIFO, /* 6 VO AC_VO Voice */
176 TX_AC_VO_FIFO /* 7 NC AC_VO Voice */
179 /* precedences numbers for wlc queues. These are twice as may levels as
181 * Odd numbers are used for HI priority traffic at same precedence levels
182 * These constants are used ONLY by wlc_prio2prec_map. Do not use them elsewhere.
184 #define _WLC_PREC_NONE 0 /* None = - */
185 #define _WLC_PREC_BK 2 /* BK - Background */
186 #define _WLC_PREC_BE 4 /* BE - Best-effort */
187 #define _WLC_PREC_EE 6 /* EE - Excellent-effort */
188 #define _WLC_PREC_CL 8 /* CL - Controlled Load */
189 #define _WLC_PREC_VI 10 /* Vi - Video */
190 #define _WLC_PREC_VO 12 /* Vo - Voice */
191 #define _WLC_PREC_NC 14 /* NC - Network Control */
193 /* 802.1D Priority to precedence queue mapping */
194 const u8 wlc_prio2prec_map[] = {
195 _WLC_PREC_BE, /* 0 BE - Best-effort */
196 _WLC_PREC_BK, /* 1 BK - Background */
197 _WLC_PREC_NONE, /* 2 None = - */
198 _WLC_PREC_EE, /* 3 EE - Excellent-effort */
199 _WLC_PREC_CL, /* 4 CL - Controlled Load */
200 _WLC_PREC_VI, /* 5 Vi - Video */
201 _WLC_PREC_VO, /* 6 Vo - Voice */
202 _WLC_PREC_NC, /* 7 NC - Network Control */
205 /* Sanity check for tx_prec_map and fifo synchup
206 * Either there are some packets pending for the fifo, else if fifo is empty then
207 * all the corresponding precmap bits should be set
209 #define WLC_TX_FIFO_CHECK(wlc, fifo) (TXPKTPENDGET((wlc), (fifo)) || \
210 (TXPKTPENDGET((wlc), (fifo)) == 0 && \
211 ((wlc)->tx_prec_map & (wlc)->fifo2prec_map[(fifo)]) == \
212 (wlc)->fifo2prec_map[(fifo)]))
214 /* TX FIFO number to WME/802.1E Access Category */
215 const u8 wme_fifo2ac[] = { AC_BK, AC_BE, AC_VI, AC_VO, AC_BE, AC_BE };
217 /* WME/802.1E Access Category to TX FIFO number */
218 static const u8 wme_ac2fifo[] = { 1, 0, 2, 3 };
220 static bool in_send_q = false;
222 /* Shared memory location index for various AC params */
223 #define wme_shmemacindex(ac) wme_ac2fifo[ac]
226 static const char *fifo_names[] = {
227 "AC_BK", "AC_BE", "AC_VI", "AC_VO", "BCMC", "ATIM" };
229 static const char fifo_names[6][0];
232 static const u8 acbitmap2maxprio[] = {
233 PRIO_8021D_BE, PRIO_8021D_BE, PRIO_8021D_BK, PRIO_8021D_BK,
234 PRIO_8021D_VI, PRIO_8021D_VI, PRIO_8021D_VI, PRIO_8021D_VI,
235 PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO,
236 PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO
239 /* currently the best mechanism for determining SIFS is the band in use */
240 #define SIFS(band) ((band)->bandtype == WLC_BAND_5G ? APHY_SIFS_TIME : BPHY_SIFS_TIME);
242 /* value for # replay counters currently supported */
243 #define WLC_REPLAY_CNTRS_VALUE WPA_CAP_16_REPLAY_CNTRS
245 /* local prototypes */
246 static u16 BCMFASTPATH wlc_d11hdrs_mac80211(struct wlc_info *wlc,
247 struct ieee80211_hw *hw,
249 struct scb *scb, uint frag,
250 uint nfrags, uint queue,
253 ratespec_t rspec_override);
255 static void wlc_ctrupd_cache(u16 cur_stat, u16 *macstat_snapshot, u32 *macstat);
256 static void wlc_bss_default_init(struct wlc_info *wlc);
257 static void wlc_ucode_mac_upd(struct wlc_info *wlc);
258 static ratespec_t mac80211_wlc_set_nrate(struct wlc_info *wlc,
259 struct wlcband *cur_band, u32 int_val);
260 static void wlc_tx_prec_map_init(struct wlc_info *wlc);
261 static void wlc_watchdog(void *arg);
262 static void wlc_watchdog_by_timer(void *arg);
263 static u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate);
264 static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg);
265 static int wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val,
266 const bcm_iovar_t *vi);
267 static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc);
269 /* send and receive */
270 static struct wlc_txq_info *wlc_txq_alloc(struct wlc_info *wlc,
271 struct osl_info *osh);
272 static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh,
273 struct wlc_txq_info *qi);
274 static void wlc_txflowcontrol_signal(struct wlc_info *wlc,
275 struct wlc_txq_info *qi,
277 static void wlc_txflowcontrol_reset(struct wlc_info *wlc);
278 static u16 wlc_compute_airtime(struct wlc_info *wlc, ratespec_t rspec,
280 static void wlc_compute_cck_plcp(ratespec_t rate, uint length, u8 *plcp);
281 static void wlc_compute_ofdm_plcp(ratespec_t rate, uint length, u8 *plcp);
282 static void wlc_compute_mimo_plcp(ratespec_t rate, uint length, u8 *plcp);
283 static u16 wlc_compute_frame_dur(struct wlc_info *wlc, ratespec_t rate,
284 u8 preamble_type, uint next_frag_len);
285 static void wlc_recvctl(struct wlc_info *wlc, struct osl_info *osh,
286 d11rxhdr_t *rxh, struct sk_buff *p);
287 static uint wlc_calc_frame_len(struct wlc_info *wlc, ratespec_t rate,
288 u8 preamble_type, uint dur);
289 static uint wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rate,
291 static uint wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rate,
293 /* interrupt, up/down, band */
294 static void wlc_setband(struct wlc_info *wlc, uint bandunit);
295 static chanspec_t wlc_init_chanspec(struct wlc_info *wlc);
296 static void wlc_bandinit_ordered(struct wlc_info *wlc, chanspec_t chanspec);
297 static void wlc_bsinit(struct wlc_info *wlc);
298 static int wlc_duty_cycle_set(struct wlc_info *wlc, int duty_cycle, bool isOFDM,
300 static void wlc_radio_hwdisable_upd(struct wlc_info *wlc);
301 static bool wlc_radio_monitor_start(struct wlc_info *wlc);
302 static void wlc_radio_timer(void *arg);
303 static void wlc_radio_enable(struct wlc_info *wlc);
304 static void wlc_radio_upd(struct wlc_info *wlc);
306 /* scan, association, BSS */
307 static uint wlc_calc_ba_time(struct wlc_info *wlc, ratespec_t rate,
309 static void wlc_update_mimo_band_bwcap(struct wlc_info *wlc, u8 bwcap);
310 static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val);
311 static void wlc_ht_update_ldpc(struct wlc_info *wlc, s8 val);
312 static void wlc_war16165(struct wlc_info *wlc, bool tx);
314 static void wlc_wme_retries_write(struct wlc_info *wlc);
315 static bool wlc_attach_stf_ant_init(struct wlc_info *wlc);
316 static uint wlc_attach_module(struct wlc_info *wlc);
317 static void wlc_detach_module(struct wlc_info *wlc);
318 static void wlc_timers_deinit(struct wlc_info *wlc);
319 static void wlc_down_led_upd(struct wlc_info *wlc);
320 static uint wlc_down_del_timer(struct wlc_info *wlc);
321 static void wlc_ofdm_rateset_war(struct wlc_info *wlc);
322 static int _wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
323 struct wlc_if *wlcif);
326 void wlc_get_rcmta(struct wlc_info *wlc, int idx, u8 *addr)
328 d11regs_t *regs = wlc->regs;
330 struct osl_info *osh;
332 WL_TRACE("wl%d: %s\n", WLCWLUNIT(wlc), __func__);
336 W_REG(®s->objaddr, (OBJADDR_RCMTA_SEL | (idx * 2)));
337 (void)R_REG(®s->objaddr);
338 v32 = R_REG(®s->objdata);
340 addr[1] = (u8) (v32 >> 8);
341 addr[2] = (u8) (v32 >> 16);
342 addr[3] = (u8) (v32 >> 24);
343 W_REG(®s->objaddr, (OBJADDR_RCMTA_SEL | ((idx * 2) + 1)));
344 (void)R_REG(®s->objaddr);
345 v32 = R_REG(®s->objdata);
347 addr[5] = (u8) (v32 >> 8);
349 #endif /* defined(BCMDBG) */
351 /* keep the chip awake if needed */
352 bool wlc_stay_awake(struct wlc_info *wlc)
357 /* conditions under which the PM bit should be set in outgoing frames and STAY_AWAKE is meaningful
359 bool wlc_ps_allowed(struct wlc_info *wlc)
364 /* disallow PS when one of the following global conditions meets */
365 if (!wlc->pub->associated || !wlc->PMenabled || wlc->PM_override)
368 /* disallow PS when one of these meets when not scanning */
369 if (!wlc->PMblocked) {
370 if (AP_ACTIVE(wlc) || wlc->monitor)
374 FOREACH_AS_STA(wlc, idx, cfg) {
375 /* disallow PS when one of the following bsscfg specific conditions meets */
376 if (!cfg->BSS || !WLC_PORTOPEN(cfg))
379 if (!cfg->dtim_programmed)
386 void wlc_reset(struct wlc_info *wlc)
388 WL_TRACE("wl%d: wlc_reset\n", wlc->pub->unit);
390 wlc->check_for_unaligned_tbtt = false;
392 /* slurp up hw mac counters before core reset */
395 /* reset our snapshot of macstat counters */
396 memset((char *)wlc->core->macstat_snapshot, 0,
399 wlc_bmac_reset(wlc->hw);
400 wlc_ampdu_reset(wlc->ampdu);
405 void wlc_fatal_error(struct wlc_info *wlc)
407 WL_ERROR("wl%d: fatal error, reinitializing\n", wlc->pub->unit);
411 /* Return the channel the driver should initialize during wlc_init.
412 * the channel may have to be changed from the currently configured channel
413 * if other configurations are in conflict (bandlocked, 11n mode disabled,
414 * invalid channel for current country, etc.)
416 static chanspec_t wlc_init_chanspec(struct wlc_info *wlc)
418 chanspec_t chanspec =
419 1 | WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE |
422 /* make sure the channel is on the supported band if we are band-restricted */
423 if (wlc->bandlocked || NBANDS(wlc) == 1) {
424 ASSERT(CHSPEC_WLCBANDUNIT(chanspec) == wlc->band->bandunit);
426 ASSERT(wlc_valid_chanspec_db(wlc->cmi, chanspec));
430 struct scb global_scb;
432 static void wlc_init_scb(struct wlc_info *wlc, struct scb *scb)
435 scb->flags = SCB_WMECAP | SCB_HTCAP;
436 for (i = 0; i < NUMPRIO; i++)
440 void wlc_init(struct wlc_info *wlc)
445 wlc_bsscfg_t *bsscfg;
448 WL_TRACE("wl%d: wlc_init\n", wlc->pub->unit);
452 /* This will happen if a big-hammer was executed. In that case, we want to go back
453 * to the channel that we were on and not new channel
455 if (wlc->pub->associated)
456 chanspec = wlc->home_chanspec;
458 chanspec = wlc_init_chanspec(wlc);
460 wlc_bmac_init(wlc->hw, chanspec, mute);
462 wlc->seckeys = wlc_bmac_read_shm(wlc->hw, M_SECRXKEYS_PTR) * 2;
463 if (wlc->machwcap & MCAP_TKIPMIC)
465 wlc_bmac_read_shm(wlc->hw, M_TKMICKEYS_PTR) * 2;
467 /* update beacon listen interval */
470 (u8) (wlc_bmac_read_shm(wlc->hw, M_NOSLPZNATDTIM) >> 10);
471 ASSERT(wlc->bcn_wait_prd > 0);
473 /* the world is new again, so is our reported rate */
474 wlc_reprate_init(wlc);
476 /* write ethernet address to core */
477 FOREACH_BSS(wlc, i, bsscfg) {
479 wlc_set_bssid(bsscfg);
482 /* Update tsf_cfprep if associated and up */
483 if (wlc->pub->associated) {
484 FOREACH_BSS(wlc, i, bsscfg) {
488 /* get beacon period and convert to uS */
489 bi = bsscfg->current_bss->beacon_period << 10;
491 * update since init path would reset
494 W_REG(®s->tsf_cfprep,
495 (bi << CFPREP_CBI_SHIFT));
497 /* Update maccontrol PM related bits */
498 wlc_set_ps_ctrl(wlc);
505 wlc_key_hw_init_all(wlc);
507 wlc_bandinit_ordered(wlc, chanspec);
509 wlc_init_scb(wlc, &global_scb);
511 /* init probe response timeout */
512 wlc_write_shm(wlc, M_PRS_MAXTIME, wlc->prb_resp_timeout);
514 /* init max burst txop (framebursting) */
515 wlc_write_shm(wlc, M_MBURST_TXOP,
517 _rifs ? (EDCF_AC_VO_TXOP_AP << 5) : MAXFRAMEBURST_TXOP));
519 /* initialize maximum allowed duty cycle */
520 wlc_duty_cycle_set(wlc, wlc->tx_duty_cycle_ofdm, true, true);
521 wlc_duty_cycle_set(wlc, wlc->tx_duty_cycle_cck, false, true);
523 /* Update some shared memory locations related to max AMPDU size allowed to received */
524 wlc_ampdu_shm_upd(wlc->ampdu);
526 /* band-specific inits */
529 /* Enable EDCF mode (while the MAC is suspended) */
530 if (EDCF_ENAB(wlc->pub)) {
531 OR_REG(®s->ifs_ctl, IFS_USEEDCF);
532 wlc_edcf_setparams(wlc->cfg, false);
535 /* Init precedence maps for empty FIFOs */
536 wlc_tx_prec_map_init(wlc);
538 /* read the ucode version if we have not yet done so */
539 if (wlc->ucode_rev == 0) {
541 wlc_read_shm(wlc, M_BOM_REV_MAJOR) << NBITS(u16);
542 wlc->ucode_rev |= wlc_read_shm(wlc, M_BOM_REV_MINOR);
545 /* ..now really unleash hell (allow the MAC out of suspend) */
548 /* clear tx flow control */
549 wlc_txflowcontrol_reset(wlc);
551 /* clear tx data fifo suspends */
552 wlc->tx_suspended = false;
554 /* enable the RF Disable Delay timer */
555 W_REG(&wlc->regs->rfdisabledly, RFDISABLE_DEFAULT);
557 /* initialize mpc delay */
558 wlc->mpc_delay_off = wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
561 * Initialize WME parameters; if they haven't been set by some other
562 * mechanism (IOVar, etc) then read them from the hardware.
564 if (WLC_WME_RETRY_SHORT_GET(wlc, 0) == 0) { /* Uninitialized; read from HW */
568 for (ac = 0; ac < AC_COUNT; ac++) {
569 wlc->wme_retries[ac] =
570 wlc_read_shm(wlc, M_AC_TXLMT_ADDR(ac));
575 void wlc_mac_bcn_promisc_change(struct wlc_info *wlc, bool promisc)
577 wlc->bcnmisc_monitor = promisc;
578 wlc_mac_bcn_promisc(wlc);
581 void wlc_mac_bcn_promisc(struct wlc_info *wlc)
583 if ((AP_ENAB(wlc->pub) && (N_ENAB(wlc->pub) || wlc->band->gmode)) ||
584 wlc->bcnmisc_ibss || wlc->bcnmisc_scan || wlc->bcnmisc_monitor)
585 wlc_mctrl(wlc, MCTL_BCNS_PROMISC, MCTL_BCNS_PROMISC);
587 wlc_mctrl(wlc, MCTL_BCNS_PROMISC, 0);
590 /* set or clear maccontrol bits MCTL_PROMISC and MCTL_KEEPCONTROL */
591 void wlc_mac_promisc(struct wlc_info *wlc)
593 u32 promisc_bits = 0;
595 /* promiscuous mode just sets MCTL_PROMISC
596 * Note: APs get all BSS traffic without the need to set the MCTL_PROMISC bit
597 * since all BSS data traffic is directed at the AP
599 if (PROMISC_ENAB(wlc->pub) && !AP_ENAB(wlc->pub) && !wlc->wet)
600 promisc_bits |= MCTL_PROMISC;
602 /* monitor mode needs both MCTL_PROMISC and MCTL_KEEPCONTROL
603 * Note: monitor mode also needs MCTL_BCNS_PROMISC, but that is
604 * handled in wlc_mac_bcn_promisc()
606 if (MONITOR_ENAB(wlc))
607 promisc_bits |= MCTL_PROMISC | MCTL_KEEPCONTROL;
609 wlc_mctrl(wlc, MCTL_PROMISC | MCTL_KEEPCONTROL, promisc_bits);
612 /* check if hps and wake states of sw and hw are in sync */
613 bool wlc_ps_check(struct wlc_info *wlc)
619 if (!AP_ACTIVE(wlc)) {
621 tmp = R_REG(&wlc->regs->maccontrol);
624 * If deviceremoved is detected, then don't take any action as
625 * this can be called in any context. Assume that caller will
626 * take care of the condition. This is just to avoid assert
628 if (tmp == 0xffffffff) {
629 WL_ERROR("wl%d: %s: dead chip\n",
630 wlc->pub->unit, __func__);
631 return DEVICEREMOVED(wlc);
634 hps = PS_ALLOWED(wlc);
636 if (hps != ((tmp & MCTL_HPS) != 0)) {
639 WL_ERROR("wl%d: hps not sync, sw %d, maccontrol 0x%x\n",
640 wlc->pub->unit, hps, tmp);
641 FOREACH_BSS(wlc, idx, cfg) {
642 if (!BSSCFG_STA(cfg))
648 /* For a monolithic build the wake check can be exact since it looks at wake
649 * override bits. The MCTL_WAKE bit should match the 'wake' value.
651 wake = STAY_AWAKE(wlc) || wlc->hw->wake_override;
652 wake_ok = (wake == ((tmp & MCTL_WAKE) != 0));
653 if (hps && !wake_ok) {
654 WL_ERROR("wl%d: wake not sync, sw %d maccontrol 0x%x\n",
655 wlc->pub->unit, wake, tmp);
663 /* push sw hps and wake state through hardware */
664 void wlc_set_ps_ctrl(struct wlc_info *wlc)
670 hps = PS_ALLOWED(wlc);
671 wake = hps ? (STAY_AWAKE(wlc)) : true;
673 WL_TRACE("wl%d: wlc_set_ps_ctrl: hps %d wake %d\n",
674 wlc->pub->unit, hps, wake);
676 v1 = R_REG(&wlc->regs->maccontrol);
683 wlc_mctrl(wlc, MCTL_WAKE | MCTL_HPS, v2);
685 awake_before = ((v1 & MCTL_WAKE) || ((v1 & MCTL_HPS) == 0));
687 if (wake && !awake_before)
688 wlc_bmac_wait_for_wake(wlc->hw);
693 * Write this BSS config's MAC address to core.
694 * Updates RXE match engine.
696 int wlc_set_mac(wlc_bsscfg_t *cfg)
699 struct wlc_info *wlc = cfg->wlc;
701 if (cfg == wlc->cfg) {
702 /* enter the MAC addr into the RXE match registers */
703 wlc_set_addrmatch(wlc, RCM_MAC_OFFSET, cfg->cur_etheraddr);
706 wlc_ampdu_macaddr_upd(wlc);
711 /* Write the BSS config's BSSID address to core (set_bssid in d11procs.tcl).
712 * Updates RXE match engine.
714 void wlc_set_bssid(wlc_bsscfg_t *cfg)
716 struct wlc_info *wlc = cfg->wlc;
718 /* if primary config, we need to update BSSID in RXE match registers */
719 if (cfg == wlc->cfg) {
720 wlc_set_addrmatch(wlc, RCM_BSSID_OFFSET, cfg->BSSID);
722 #ifdef SUPPORT_HWKEYS
723 else if (BSSCFG_STA(cfg) && cfg->BSS) {
724 wlc_rcmta_add_bssid(wlc, cfg);
730 * Suspend the the MAC and update the slot timing
731 * for standard 11b/g (20us slots) or shortslot 11g (9us slots).
733 void wlc_switch_shortslot(struct wlc_info *wlc, bool shortslot)
738 ASSERT(wlc->band->gmode);
740 /* use the override if it is set */
741 if (wlc->shortslot_override != WLC_SHORTSLOT_AUTO)
742 shortslot = (wlc->shortslot_override == WLC_SHORTSLOT_ON);
744 if (wlc->shortslot == shortslot)
747 wlc->shortslot = shortslot;
749 /* update the capability based on current shortslot mode */
750 FOREACH_BSS(wlc, idx, cfg) {
751 if (!cfg->associated)
753 cfg->current_bss->capability &=
754 ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
756 cfg->current_bss->capability |=
757 WLAN_CAPABILITY_SHORT_SLOT_TIME;
760 wlc_bmac_set_shortslot(wlc->hw, shortslot);
763 static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc)
768 local = WLC_TXPWR_MAX;
769 if (wlc->pub->associated &&
770 (wf_chspec_ctlchan(wlc->chanspec) ==
771 wf_chspec_ctlchan(wlc->home_chanspec))) {
773 /* get the local power constraint if we are on the AP's
774 * channel [802.11h, 7.3.2.13]
776 /* Clamp the value between 0 and WLC_TXPWR_MAX w/o overflowing the target */
778 (wlc->txpwr_local_max -
779 wlc->txpwr_local_constraint) * WLC_TXPWR_DB_FACTOR;
780 if (local_max > 0 && local_max < WLC_TXPWR_MAX)
781 return (u8) local_max;
789 /* propagate home chanspec to all bsscfgs in case bsscfg->current_bss->chanspec is referenced */
790 void wlc_set_home_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
792 if (wlc->home_chanspec != chanspec) {
796 wlc->home_chanspec = chanspec;
798 FOREACH_BSS(wlc, idx, cfg) {
799 if (!cfg->associated)
802 cfg->current_bss->chanspec = chanspec;
808 static void wlc_set_phy_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
810 /* Save our copy of the chanspec */
811 wlc->chanspec = chanspec;
813 /* Set the chanspec and power limits for this locale after computing
814 * any 11h local tx power constraints.
816 wlc_channel_set_chanspec(wlc->cmi, chanspec,
817 wlc_local_constraint_qdbm(wlc));
819 if (wlc->stf->ss_algosel_auto)
820 wlc_stf_ss_algo_channel_get(wlc, &wlc->stf->ss_algo_channel,
823 wlc_stf_ss_update(wlc, wlc->band);
827 void wlc_set_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
830 bool switchband = false;
831 chanspec_t old_chanspec = wlc->chanspec;
833 if (!wlc_valid_chanspec_db(wlc->cmi, chanspec)) {
834 WL_ERROR("wl%d: %s: Bad channel %d\n",
835 wlc->pub->unit, __func__, CHSPEC_CHANNEL(chanspec));
836 ASSERT(wlc_valid_chanspec_db(wlc->cmi, chanspec));
840 /* Switch bands if necessary */
841 if (NBANDS(wlc) > 1) {
842 bandunit = CHSPEC_WLCBANDUNIT(chanspec);
843 if (wlc->band->bandunit != bandunit || wlc->bandinit_pending) {
845 if (wlc->bandlocked) {
846 WL_ERROR("wl%d: %s: chspec %d band is locked!\n",
847 wlc->pub->unit, __func__,
848 CHSPEC_CHANNEL(chanspec));
851 /* BMAC_NOTE: should the setband call come after the wlc_bmac_chanspec() ?
852 * if the setband updates (wlc_bsinit) use low level calls to inspect and
853 * set state, the state inspected may be from the wrong band, or the
854 * following wlc_bmac_set_chanspec() may undo the work.
856 wlc_setband(wlc, bandunit);
860 ASSERT(N_ENAB(wlc->pub) || !CHSPEC_IS40(chanspec));
862 /* sync up phy/radio chanspec */
863 wlc_set_phy_chanspec(wlc, chanspec);
865 /* init antenna selection */
866 if (CHSPEC_WLC_BW(old_chanspec) != CHSPEC_WLC_BW(chanspec)) {
867 wlc_antsel_init(wlc->asi);
869 /* Fix the hardware rateset based on bw.
870 * Mainly add MCS32 for 40Mhz, remove MCS 32 for 20Mhz
872 wlc_rateset_bw_mcs_filter(&wlc->band->hw_rateset,
874 mimo_cap_40 ? CHSPEC_WLC_BW(chanspec)
878 /* update some mac configuration since chanspec changed */
879 wlc_ucode_mac_upd(wlc);
883 static int wlc_get_current_txpwr(struct wlc_info *wlc, void *pwr, uint len)
885 txpwr_limits_t txpwr;
887 tx_power_legacy_t *old_power = NULL;
892 if (len == sizeof(tx_power_legacy_t))
893 old_power = (tx_power_legacy_t *) pwr;
894 else if (len < sizeof(tx_power_t))
895 return BCME_BUFTOOSHORT;
897 memset(&power, 0, sizeof(tx_power_t));
899 power.chanspec = WLC_BAND_PI_RADIO_CHANSPEC;
900 if (wlc->pub->associated)
901 power.local_chanspec = wlc->home_chanspec;
903 /* Return the user target tx power limits for the various rates. Note wlc_phy.c's
904 * public interface only implements getting and setting a single value for all of
905 * rates, so we need to fill the array ourselves.
907 wlc_phy_txpower_get(wlc->band->pi, &qdbm, &override);
908 for (r = 0; r < WL_TX_POWER_RATES; r++) {
909 power.user_limit[r] = (u8) qdbm;
912 power.local_max = wlc->txpwr_local_max * WLC_TXPWR_DB_FACTOR;
913 power.local_constraint =
914 wlc->txpwr_local_constraint * WLC_TXPWR_DB_FACTOR;
916 power.antgain[0] = wlc->bandstate[BAND_2G_INDEX]->antgain;
917 power.antgain[1] = wlc->bandstate[BAND_5G_INDEX]->antgain;
919 wlc_channel_reg_limits(wlc->cmi, power.chanspec, &txpwr);
921 #if WL_TX_POWER_CCK_NUM != WLC_NUM_RATES_CCK
922 #error "WL_TX_POWER_CCK_NUM != WLC_NUM_RATES_CCK"
925 /* CCK tx power limits */
926 for (c = 0, r = WL_TX_POWER_CCK_FIRST; c < WL_TX_POWER_CCK_NUM;
928 power.reg_limit[r] = txpwr.cck[c];
930 #if WL_TX_POWER_OFDM_NUM != WLC_NUM_RATES_OFDM
931 #error "WL_TX_POWER_OFDM_NUM != WLC_NUM_RATES_OFDM"
934 /* 20 MHz OFDM SISO tx power limits */
935 for (c = 0, r = WL_TX_POWER_OFDM_FIRST; c < WL_TX_POWER_OFDM_NUM;
937 power.reg_limit[r] = txpwr.ofdm[c];
939 if (WLC_PHY_11N_CAP(wlc->band)) {
941 /* 20 MHz OFDM CDD tx power limits */
942 for (c = 0, r = WL_TX_POWER_OFDM20_CDD_FIRST;
943 c < WL_TX_POWER_OFDM_NUM; c++, r++)
944 power.reg_limit[r] = txpwr.ofdm_cdd[c];
946 /* 40 MHz OFDM SISO tx power limits */
947 for (c = 0, r = WL_TX_POWER_OFDM40_SISO_FIRST;
948 c < WL_TX_POWER_OFDM_NUM; c++, r++)
949 power.reg_limit[r] = txpwr.ofdm_40_siso[c];
951 /* 40 MHz OFDM CDD tx power limits */
952 for (c = 0, r = WL_TX_POWER_OFDM40_CDD_FIRST;
953 c < WL_TX_POWER_OFDM_NUM; c++, r++)
954 power.reg_limit[r] = txpwr.ofdm_40_cdd[c];
956 #if WL_TX_POWER_MCS_1_STREAM_NUM != WLC_NUM_RATES_MCS_1_STREAM
957 #error "WL_TX_POWER_MCS_1_STREAM_NUM != WLC_NUM_RATES_MCS_1_STREAM"
960 /* 20MHz MCS0-7 SISO tx power limits */
961 for (c = 0, r = WL_TX_POWER_MCS20_SISO_FIRST;
962 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
963 power.reg_limit[r] = txpwr.mcs_20_siso[c];
965 /* 20MHz MCS0-7 CDD tx power limits */
966 for (c = 0, r = WL_TX_POWER_MCS20_CDD_FIRST;
967 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
968 power.reg_limit[r] = txpwr.mcs_20_cdd[c];
970 /* 20MHz MCS0-7 STBC tx power limits */
971 for (c = 0, r = WL_TX_POWER_MCS20_STBC_FIRST;
972 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
973 power.reg_limit[r] = txpwr.mcs_20_stbc[c];
975 /* 40MHz MCS0-7 SISO tx power limits */
976 for (c = 0, r = WL_TX_POWER_MCS40_SISO_FIRST;
977 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
978 power.reg_limit[r] = txpwr.mcs_40_siso[c];
980 /* 40MHz MCS0-7 CDD tx power limits */
981 for (c = 0, r = WL_TX_POWER_MCS40_CDD_FIRST;
982 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
983 power.reg_limit[r] = txpwr.mcs_40_cdd[c];
985 /* 40MHz MCS0-7 STBC tx power limits */
986 for (c = 0, r = WL_TX_POWER_MCS40_STBC_FIRST;
987 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
988 power.reg_limit[r] = txpwr.mcs_40_stbc[c];
990 #if WL_TX_POWER_MCS_2_STREAM_NUM != WLC_NUM_RATES_MCS_2_STREAM
991 #error "WL_TX_POWER_MCS_2_STREAM_NUM != WLC_NUM_RATES_MCS_2_STREAM"
994 /* 20MHz MCS8-15 SDM tx power limits */
995 for (c = 0, r = WL_TX_POWER_MCS20_SDM_FIRST;
996 c < WLC_NUM_RATES_MCS_2_STREAM; c++, r++)
997 power.reg_limit[r] = txpwr.mcs_20_mimo[c];
999 /* 40MHz MCS8-15 SDM tx power limits */
1000 for (c = 0, r = WL_TX_POWER_MCS40_SDM_FIRST;
1001 c < WLC_NUM_RATES_MCS_2_STREAM; c++, r++)
1002 power.reg_limit[r] = txpwr.mcs_40_mimo[c];
1005 power.reg_limit[WL_TX_POWER_MCS_32] = txpwr.mcs32;
1008 wlc_phy_txpower_get_current(wlc->band->pi, &power,
1009 CHSPEC_CHANNEL(power.chanspec));
1011 /* copy the tx_power_t struct to the return buffer,
1012 * or convert to a tx_power_legacy_t struct
1015 memcpy(pwr, &power, sizeof(tx_power_t));
1017 int band_idx = CHSPEC_IS2G(power.chanspec) ? 0 : 1;
1019 memset(old_power, 0, sizeof(tx_power_legacy_t));
1021 old_power->txpwr_local_max = power.local_max;
1022 old_power->txpwr_local_constraint = power.local_constraint;
1023 if (CHSPEC_IS2G(power.chanspec)) {
1024 old_power->txpwr_chan_reg_max = txpwr.cck[0];
1025 old_power->txpwr_est_Pout[band_idx] =
1027 old_power->txpwr_est_Pout_gofdm = power.est_Pout[0];
1029 old_power->txpwr_chan_reg_max = txpwr.ofdm[0];
1030 old_power->txpwr_est_Pout[band_idx] = power.est_Pout[0];
1032 old_power->txpwr_antgain[0] = power.antgain[0];
1033 old_power->txpwr_antgain[1] = power.antgain[1];
1035 for (r = 0; r < NUM_PWRCTRL_RATES; r++) {
1036 old_power->txpwr_band_max[r] = power.user_limit[r];
1037 old_power->txpwr_limit[r] = power.reg_limit[r];
1038 old_power->txpwr_target[band_idx][r] = power.target[r];
1039 if (CHSPEC_IS2G(power.chanspec))
1040 old_power->txpwr_bphy_cck_max[r] =
1041 power.board_limit[r];
1043 old_power->txpwr_aphy_max[r] =
1044 power.board_limit[r];
1050 #endif /* defined(BCMDBG) */
1052 static u32 wlc_watchdog_backup_bi(struct wlc_info *wlc)
1055 bi = 2 * wlc->cfg->current_bss->dtim_period *
1056 wlc->cfg->current_bss->beacon_period;
1057 if (wlc->bcn_li_dtim)
1058 bi *= wlc->bcn_li_dtim;
1059 else if (wlc->bcn_li_bcn)
1060 /* recalculate bi based on bcn_li_bcn */
1061 bi = 2 * wlc->bcn_li_bcn * wlc->cfg->current_bss->beacon_period;
1063 if (bi < 2 * TIMER_INTERVAL_WATCHDOG)
1064 bi = 2 * TIMER_INTERVAL_WATCHDOG;
1068 /* Change to run the watchdog either from a periodic timer or from tbtt handler.
1069 * Call watchdog from tbtt handler if tbtt is true, watchdog timer otherwise.
1071 void wlc_watchdog_upd(struct wlc_info *wlc, bool tbtt)
1073 /* make sure changing watchdog driver is allowed */
1074 if (!wlc->pub->up || !wlc->pub->align_wd_tbtt)
1076 if (!tbtt && wlc->WDarmed) {
1077 wl_del_timer(wlc->wl, wlc->wdtimer);
1078 wlc->WDarmed = false;
1081 /* stop watchdog timer and use tbtt interrupt to drive watchdog */
1082 if (tbtt && wlc->WDarmed) {
1083 wl_del_timer(wlc->wl, wlc->wdtimer);
1084 wlc->WDarmed = false;
1085 wlc->WDlast = OSL_SYSUPTIME();
1087 /* arm watchdog timer and drive the watchdog there */
1088 else if (!tbtt && !wlc->WDarmed) {
1089 wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG,
1091 wlc->WDarmed = true;
1093 if (tbtt && !wlc->WDarmed) {
1094 wl_add_timer(wlc->wl, wlc->wdtimer, wlc_watchdog_backup_bi(wlc),
1096 wlc->WDarmed = true;
1100 ratespec_t wlc_lowest_basic_rspec(struct wlc_info *wlc, wlc_rateset_t *rs)
1102 ratespec_t lowest_basic_rspec;
1105 /* Use the lowest basic rate */
1106 lowest_basic_rspec = rs->rates[0] & RATE_MASK;
1107 for (i = 0; i < rs->count; i++) {
1108 if (rs->rates[i] & WLC_RATE_FLAG) {
1109 lowest_basic_rspec = rs->rates[i] & RATE_MASK;
1114 /* pick siso/cdd as default for OFDM (note no basic rate MCSs are supported yet) */
1115 if (IS_OFDM(lowest_basic_rspec)) {
1116 lowest_basic_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
1120 return lowest_basic_rspec;
1123 /* This function changes the phytxctl for beacon based on current beacon ratespec AND txant
1124 * setting as per this table:
1125 * ratespec CCK ant = wlc->stf->txant
1128 void wlc_beacon_phytxctl_txant_upd(struct wlc_info *wlc, ratespec_t bcn_rspec)
1131 u16 phytxant = wlc->stf->phytxant;
1132 u16 mask = PHY_TXC_ANT_MASK;
1134 /* for non-siso rates or default setting, use the available chains */
1135 if (WLC_PHY_11N_CAP(wlc->band)) {
1136 phytxant = wlc_stf_phytxchain_sel(wlc, bcn_rspec);
1139 phyctl = wlc_read_shm(wlc, M_BCN_PCTLWD);
1140 phyctl = (phyctl & ~mask) | phytxant;
1141 wlc_write_shm(wlc, M_BCN_PCTLWD, phyctl);
1144 /* centralized protection config change function to simplify debugging, no consistency checking
1145 * this should be called only on changes to avoid overhead in periodic function
1147 void wlc_protection_upd(struct wlc_info *wlc, uint idx, int val)
1149 WL_TRACE("wlc_protection_upd: idx %d, val %d\n", idx, val);
1152 case WLC_PROT_G_SPEC:
1153 wlc->protection->_g = (bool) val;
1155 case WLC_PROT_G_OVR:
1156 wlc->protection->g_override = (s8) val;
1158 case WLC_PROT_G_USER:
1159 wlc->protection->gmode_user = (u8) val;
1161 case WLC_PROT_OVERLAP:
1162 wlc->protection->overlap = (s8) val;
1164 case WLC_PROT_N_USER:
1165 wlc->protection->nmode_user = (s8) val;
1167 case WLC_PROT_N_CFG:
1168 wlc->protection->n_cfg = (s8) val;
1170 case WLC_PROT_N_CFG_OVR:
1171 wlc->protection->n_cfg_override = (s8) val;
1173 case WLC_PROT_N_NONGF:
1174 wlc->protection->nongf = (bool) val;
1176 case WLC_PROT_N_NONGF_OVR:
1177 wlc->protection->nongf_override = (s8) val;
1179 case WLC_PROT_N_PAM_OVR:
1180 wlc->protection->n_pam_override = (s8) val;
1182 case WLC_PROT_N_OBSS:
1183 wlc->protection->n_obss = (bool) val;
1193 static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val)
1195 wlc->ht_cap.cap_info &= ~(IEEE80211_HT_CAP_SGI_20 |
1196 IEEE80211_HT_CAP_SGI_40);
1197 wlc->ht_cap.cap_info |= (val & WLC_N_SGI_20) ?
1198 IEEE80211_HT_CAP_SGI_20 : 0;
1199 wlc->ht_cap.cap_info |= (val & WLC_N_SGI_40) ?
1200 IEEE80211_HT_CAP_SGI_40 : 0;
1203 wlc_update_beacon(wlc);
1204 wlc_update_probe_resp(wlc, true);
1208 static void wlc_ht_update_ldpc(struct wlc_info *wlc, s8 val)
1210 wlc->stf->ldpc = val;
1212 wlc->ht_cap.cap_info &= ~IEEE80211_HT_CAP_LDPC_CODING;
1213 if (wlc->stf->ldpc != OFF)
1214 wlc->ht_cap.cap_info |= IEEE80211_HT_CAP_LDPC_CODING;
1217 wlc_update_beacon(wlc);
1218 wlc_update_probe_resp(wlc, true);
1219 wlc_phy_ldpc_override_set(wlc->band->pi, (val ? true : false));
1224 * ucode, hwmac update
1225 * Channel dependent updates for ucode and hw
1227 static void wlc_ucode_mac_upd(struct wlc_info *wlc)
1229 /* enable or disable any active IBSSs depending on whether or not
1230 * we are on the home channel
1232 if (wlc->home_chanspec == WLC_BAND_PI_RADIO_CHANSPEC) {
1233 if (wlc->pub->associated) {
1234 /* BMAC_NOTE: This is something that should be fixed in ucode inits.
1235 * I think that the ucode inits set up the bcn templates and shm values
1236 * with a bogus beacon. This should not be done in the inits. If ucode needs
1237 * to set up a beacon for testing, the test routines should write it down,
1238 * not expect the inits to populate a bogus beacon.
1240 if (WLC_PHY_11N_CAP(wlc->band)) {
1241 wlc_write_shm(wlc, M_BCN_TXTSF_OFFSET,
1242 wlc->band->bcntsfoff);
1246 /* disable an active IBSS if we are not on the home channel */
1249 /* update the various promisc bits */
1250 wlc_mac_bcn_promisc(wlc);
1251 wlc_mac_promisc(wlc);
1254 static void wlc_bandinit_ordered(struct wlc_info *wlc, chanspec_t chanspec)
1256 wlc_rateset_t default_rateset;
1258 uint i, band_order[2];
1260 WL_TRACE("wl%d: wlc_bandinit_ordered\n", wlc->pub->unit);
1262 * We might have been bandlocked during down and the chip power-cycled (hibernate).
1263 * figure out the right band to park on
1265 if (wlc->bandlocked || NBANDS(wlc) == 1) {
1266 ASSERT(CHSPEC_WLCBANDUNIT(chanspec) == wlc->band->bandunit);
1268 parkband = wlc->band->bandunit; /* updated in wlc_bandlock() */
1269 band_order[0] = band_order[1] = parkband;
1271 /* park on the band of the specified chanspec */
1272 parkband = CHSPEC_WLCBANDUNIT(chanspec);
1274 /* order so that parkband initialize last */
1275 band_order[0] = parkband ^ 1;
1276 band_order[1] = parkband;
1279 /* make each band operational, software state init */
1280 for (i = 0; i < NBANDS(wlc); i++) {
1281 uint j = band_order[i];
1283 wlc->band = wlc->bandstate[j];
1285 wlc_default_rateset(wlc, &default_rateset);
1287 /* fill in hw_rate */
1288 wlc_rateset_filter(&default_rateset, &wlc->band->hw_rateset,
1289 false, WLC_RATES_CCK_OFDM, RATE_MASK,
1290 (bool) N_ENAB(wlc->pub));
1292 /* init basic rate lookup */
1293 wlc_rate_lookup_init(wlc, &default_rateset);
1296 /* sync up phy/radio chanspec */
1297 wlc_set_phy_chanspec(wlc, chanspec);
1300 /* band-specific init */
1301 static void WLBANDINITFN(wlc_bsinit) (struct wlc_info *wlc)
1303 WL_TRACE("wl%d: wlc_bsinit: bandunit %d\n",
1304 wlc->pub->unit, wlc->band->bandunit);
1306 /* write ucode ACK/CTS rate table */
1307 wlc_set_ratetable(wlc);
1309 /* update some band specific mac configuration */
1310 wlc_ucode_mac_upd(wlc);
1312 /* init antenna selection */
1313 wlc_antsel_init(wlc->asi);
1317 /* switch to and initialize new band */
1318 static void WLBANDINITFN(wlc_setband) (struct wlc_info *wlc, uint bandunit)
1323 ASSERT(NBANDS(wlc) > 1);
1324 ASSERT(!wlc->bandlocked);
1325 ASSERT(bandunit != wlc->band->bandunit || wlc->bandinit_pending);
1327 wlc->band = wlc->bandstate[bandunit];
1332 /* wait for at least one beacon before entering sleeping state */
1333 wlc->PMawakebcn = true;
1334 FOREACH_AS_STA(wlc, idx, cfg)
1335 cfg->PMawakebcn = true;
1336 wlc_set_ps_ctrl(wlc);
1338 /* band-specific initializations */
1342 /* Initialize a WME Parameter Info Element with default STA parameters from WMM Spec, Table 12 */
1343 void wlc_wme_initparams_sta(struct wlc_info *wlc, wme_param_ie_t *pe)
1345 static const wme_param_ie_t stadef = {
1348 WME_SUBTYPE_PARAM_IE,
1353 {EDCF_AC_BE_ACI_STA, EDCF_AC_BE_ECW_STA,
1354 cpu_to_le16(EDCF_AC_BE_TXOP_STA)},
1355 {EDCF_AC_BK_ACI_STA, EDCF_AC_BK_ECW_STA,
1356 cpu_to_le16(EDCF_AC_BK_TXOP_STA)},
1357 {EDCF_AC_VI_ACI_STA, EDCF_AC_VI_ECW_STA,
1358 cpu_to_le16(EDCF_AC_VI_TXOP_STA)},
1359 {EDCF_AC_VO_ACI_STA, EDCF_AC_VO_ECW_STA,
1360 cpu_to_le16(EDCF_AC_VO_TXOP_STA)}
1364 ASSERT(sizeof(*pe) == WME_PARAM_IE_LEN);
1365 memcpy(pe, &stadef, sizeof(*pe));
1368 void wlc_wme_setparams(struct wlc_info *wlc, u16 aci, void *arg, bool suspend)
1371 shm_acparams_t acp_shm;
1373 struct ieee80211_tx_queue_params *params = arg;
1377 /* Only apply params if the core is out of reset and has clocks */
1379 WL_ERROR("wl%d: %s : no-clock\n", wlc->pub->unit, __func__);
1384 * AP uses AC params from wme_param_ie_ap.
1385 * AP advertises AC params from wme_param_ie.
1386 * STA uses AC params from wme_param_ie.
1389 wlc->wme_admctl = 0;
1392 memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
1393 /* find out which ac this set of params applies to */
1394 ASSERT(aci < AC_COUNT);
1395 /* set the admission control policy for this AC */
1396 /* wlc->wme_admctl |= 1 << aci; *//* should be set ?? seems like off by default */
1398 /* fill in shm ac params struct */
1399 acp_shm.txop = le16_to_cpu(params->txop);
1400 /* convert from units of 32us to us for ucode */
1401 wlc->edcf_txop[aci & 0x3] = acp_shm.txop =
1402 EDCF_TXOP2USEC(acp_shm.txop);
1403 acp_shm.aifs = (params->aifs & EDCF_AIFSN_MASK);
1405 if (aci == AC_VI && acp_shm.txop == 0
1406 && acp_shm.aifs < EDCF_AIFSN_MAX)
1409 if (acp_shm.aifs < EDCF_AIFSN_MIN
1410 || acp_shm.aifs > EDCF_AIFSN_MAX) {
1411 WL_ERROR("wl%d: wlc_edcf_setparams: bad aifs %d\n",
1412 wlc->pub->unit, acp_shm.aifs);
1416 acp_shm.cwmin = params->cw_min;
1417 acp_shm.cwmax = params->cw_max;
1418 acp_shm.cwcur = acp_shm.cwmin;
1420 R_REG(&wlc->regs->tsf_random) & acp_shm.cwcur;
1421 acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
1422 /* Indicate the new params to the ucode */
1423 acp_shm.status = wlc_read_shm(wlc, (M_EDCF_QINFO +
1424 wme_shmemacindex(aci) *
1426 M_EDCF_STATUS_OFF));
1427 acp_shm.status |= WME_STATUS_NEWAC;
1429 /* Fill in shm acparam table */
1430 shm_entry = (u16 *) &acp_shm;
1431 for (i = 0; i < (int)sizeof(shm_acparams_t); i += 2)
1434 wme_shmemacindex(aci) * M_EDCF_QLEN + i,
1440 wlc_suspend_mac_and_wait(wlc);
1443 wlc_enable_mac(wlc);
1447 void wlc_edcf_setparams(wlc_bsscfg_t *cfg, bool suspend)
1449 struct wlc_info *wlc = cfg->wlc;
1451 edcf_acparam_t *edcf_acp;
1452 shm_acparams_t acp_shm;
1458 /* Only apply params if the core is out of reset and has clocks */
1463 * AP uses AC params from wme_param_ie_ap.
1464 * AP advertises AC params from wme_param_ie.
1465 * STA uses AC params from wme_param_ie.
1468 edcf_acp = (edcf_acparam_t *) &wlc->wme_param_ie.acparam[0];
1470 wlc->wme_admctl = 0;
1472 for (i = 0; i < AC_COUNT; i++, edcf_acp++) {
1473 memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
1474 /* find out which ac this set of params applies to */
1475 aci = (edcf_acp->ACI & EDCF_ACI_MASK) >> EDCF_ACI_SHIFT;
1476 ASSERT(aci < AC_COUNT);
1477 /* set the admission control policy for this AC */
1478 if (edcf_acp->ACI & EDCF_ACM_MASK) {
1479 wlc->wme_admctl |= 1 << aci;
1482 /* fill in shm ac params struct */
1483 acp_shm.txop = le16_to_cpu(edcf_acp->TXOP);
1484 /* convert from units of 32us to us for ucode */
1485 wlc->edcf_txop[aci] = acp_shm.txop =
1486 EDCF_TXOP2USEC(acp_shm.txop);
1487 acp_shm.aifs = (edcf_acp->ACI & EDCF_AIFSN_MASK);
1489 if (aci == AC_VI && acp_shm.txop == 0
1490 && acp_shm.aifs < EDCF_AIFSN_MAX)
1493 if (acp_shm.aifs < EDCF_AIFSN_MIN
1494 || acp_shm.aifs > EDCF_AIFSN_MAX) {
1495 WL_ERROR("wl%d: wlc_edcf_setparams: bad aifs %d\n",
1496 wlc->pub->unit, acp_shm.aifs);
1500 /* CWmin = 2^(ECWmin) - 1 */
1501 acp_shm.cwmin = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK);
1502 /* CWmax = 2^(ECWmax) - 1 */
1503 acp_shm.cwmax = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK)
1504 >> EDCF_ECWMAX_SHIFT);
1505 acp_shm.cwcur = acp_shm.cwmin;
1507 R_REG(&wlc->regs->tsf_random) & acp_shm.cwcur;
1508 acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
1509 /* Indicate the new params to the ucode */
1510 acp_shm.status = wlc_read_shm(wlc, (M_EDCF_QINFO +
1511 wme_shmemacindex(aci) *
1513 M_EDCF_STATUS_OFF));
1514 acp_shm.status |= WME_STATUS_NEWAC;
1516 /* Fill in shm acparam table */
1517 shm_entry = (u16 *) &acp_shm;
1518 for (j = 0; j < (int)sizeof(shm_acparams_t); j += 2)
1521 wme_shmemacindex(aci) * M_EDCF_QLEN + j,
1526 wlc_suspend_mac_and_wait(wlc);
1528 if (AP_ENAB(wlc->pub) && WME_ENAB(wlc->pub)) {
1529 wlc_update_beacon(wlc);
1530 wlc_update_probe_resp(wlc, false);
1534 wlc_enable_mac(wlc);
1538 bool wlc_timers_init(struct wlc_info *wlc, int unit)
1540 wlc->wdtimer = wl_init_timer(wlc->wl, wlc_watchdog_by_timer,
1542 if (!wlc->wdtimer) {
1543 WL_ERROR("wl%d: wl_init_timer for wdtimer failed\n", unit);
1547 wlc->radio_timer = wl_init_timer(wlc->wl, wlc_radio_timer,
1549 if (!wlc->radio_timer) {
1550 WL_ERROR("wl%d: wl_init_timer for radio_timer failed\n", unit);
1561 * Initialize wlc_info default values ...
1562 * may get overrides later in this function
1564 void wlc_info_init(struct wlc_info *wlc, int unit)
1567 /* Assume the device is there until proven otherwise */
1568 wlc->device_present = true;
1570 /* set default power output percentage to 100 percent */
1571 wlc->txpwr_percent = 100;
1573 /* Save our copy of the chanspec */
1574 wlc->chanspec = CH20MHZ_CHSPEC(1);
1576 /* initialize CCK preamble mode to unassociated state */
1577 wlc->shortpreamble = false;
1579 wlc->legacy_probe = true;
1581 /* various 802.11g modes */
1582 wlc->shortslot = false;
1583 wlc->shortslot_override = WLC_SHORTSLOT_AUTO;
1585 wlc->barker_overlap_control = true;
1586 wlc->barker_preamble = WLC_BARKER_SHORT_ALLOWED;
1587 wlc->txburst_limit_override = AUTO;
1589 wlc_protection_upd(wlc, WLC_PROT_G_OVR, WLC_PROTECTION_AUTO);
1590 wlc_protection_upd(wlc, WLC_PROT_G_SPEC, false);
1592 wlc_protection_upd(wlc, WLC_PROT_N_CFG_OVR, WLC_PROTECTION_AUTO);
1593 wlc_protection_upd(wlc, WLC_PROT_N_CFG, WLC_N_PROTECTION_OFF);
1594 wlc_protection_upd(wlc, WLC_PROT_N_NONGF_OVR, WLC_PROTECTION_AUTO);
1595 wlc_protection_upd(wlc, WLC_PROT_N_NONGF, false);
1596 wlc_protection_upd(wlc, WLC_PROT_N_PAM_OVR, AUTO);
1598 wlc_protection_upd(wlc, WLC_PROT_OVERLAP, WLC_PROTECTION_CTL_OVERLAP);
1600 /* 802.11g draft 4.0 NonERP elt advertisement */
1601 wlc->include_legacy_erp = true;
1603 wlc->stf->ant_rx_ovr = ANT_RX_DIV_DEF;
1604 wlc->stf->txant = ANT_TX_DEF;
1606 wlc->prb_resp_timeout = WLC_PRB_RESP_TIMEOUT;
1608 wlc->usr_fragthresh = DOT11_DEFAULT_FRAG_LEN;
1609 for (i = 0; i < NFIFO; i++)
1610 wlc->fragthresh[i] = DOT11_DEFAULT_FRAG_LEN;
1611 wlc->RTSThresh = DOT11_DEFAULT_RTS_LEN;
1613 /* default rate fallback retry limits */
1614 wlc->SFBL = RETRY_SHORT_FB;
1615 wlc->LFBL = RETRY_LONG_FB;
1617 /* default mac retry limits */
1618 wlc->SRL = RETRY_SHORT_DEF;
1619 wlc->LRL = RETRY_LONG_DEF;
1622 wlc->PM = PM_OFF; /* User's setting of PM mode through IOCTL */
1623 wlc->PM_override = false; /* Prevents from going to PM if our AP is 'ill' */
1624 wlc->PMenabled = false; /* Current PM state */
1625 wlc->PMpending = false; /* Tracks whether STA indicated PM in the last attempt */
1626 wlc->PMblocked = false; /* To allow blocking going into PM during RM and scans */
1628 /* In WMM Auto mode, PM is allowed if association is a UAPSD association */
1629 wlc->WME_PM_blocked = false;
1631 /* Init wme queuing method */
1632 wlc->wme_prec_queuing = false;
1634 /* Overrides for the core to stay awake under zillion conditions Look for STAY_AWAKE */
1636 /* Are we waiting for a response to PS-Poll that we sent */
1637 wlc->PSpoll = false;
1640 wlc->wme_apsd = true;
1641 wlc->apsd_sta_usp = false;
1642 wlc->apsd_trigger_timeout = 0; /* disable the trigger timer */
1643 wlc->apsd_trigger_ac = AC_BITMAP_ALL;
1645 /* Set flag to indicate that hw keys should be used when available. */
1646 wlc->wsec_swkeys = false;
1648 /* init the 4 static WEP default keys */
1649 for (i = 0; i < WSEC_MAX_DEFAULT_KEYS; i++) {
1650 wlc->wsec_keys[i] = wlc->wsec_def_keys[i];
1651 wlc->wsec_keys[i]->idx = (u8) i;
1654 wlc->_regulatory_domain = false; /* 802.11d */
1656 /* WME QoS mode is Auto by default */
1657 wlc->pub->_wme = AUTO;
1659 #ifdef BCMSDIODEV_ENABLED
1660 wlc->pub->_priofc = true; /* enable priority flow control for sdio dongle */
1663 wlc->pub->_ampdu = AMPDU_AGG_HOST;
1664 wlc->pub->bcmerror = 0;
1665 wlc->ibss_allowed = true;
1666 wlc->ibss_coalesce_allowed = true;
1667 wlc->pub->_coex = ON;
1669 /* initialize mpc delay */
1670 wlc->mpc_delay_off = wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
1672 wlc->pr80838_war = true;
1675 static bool wlc_state_bmac_sync(struct wlc_info *wlc)
1677 wlc_bmac_state_t state_bmac;
1679 if (wlc_bmac_state_get(wlc->hw, &state_bmac) != 0)
1682 wlc->machwcap = state_bmac.machwcap;
1683 wlc_protection_upd(wlc, WLC_PROT_N_PAM_OVR,
1684 (s8) state_bmac.preamble_ovr);
1689 static uint wlc_attach_module(struct wlc_info *wlc)
1693 unit = wlc->pub->unit;
1695 wlc->asi = wlc_antsel_attach(wlc);
1696 if (wlc->asi == NULL) {
1697 WL_ERROR("wl%d: wlc_attach: wlc_antsel_attach failed\n", unit);
1702 wlc->ampdu = wlc_ampdu_attach(wlc);
1703 if (wlc->ampdu == NULL) {
1704 WL_ERROR("wl%d: wlc_attach: wlc_ampdu_attach failed\n", unit);
1709 if ((wlc_stf_attach(wlc) != 0)) {
1710 WL_ERROR("wl%d: wlc_attach: wlc_stf_attach failed\n", unit);
1718 struct wlc_pub *wlc_pub(void *wlc)
1720 return ((struct wlc_info *) wlc)->pub;
1723 #define CHIP_SUPPORTS_11N(wlc) 1
1726 * The common driver entry routine. Error codes should be unique
1728 void *wlc_attach(void *wl, u16 vendor, u16 device, uint unit, bool piomode,
1729 struct osl_info *osh, void *regsva, uint bustype,
1730 void *btparam, uint *perr)
1732 struct wlc_info *wlc;
1735 struct wlc_pub *pub;
1736 struct wlc_txq_info *qi;
1739 WL_NONE("wl%d: %s: vendor 0x%x device 0x%x\n",
1740 unit, __func__, vendor, device);
1742 ASSERT(WSEC_MAX_RCMTA_KEYS <= WSEC_MAX_KEYS);
1743 ASSERT(WSEC_MAX_DEFAULT_KEYS == WLC_DEFAULT_KEYS);
1745 /* some code depends on packed structures */
1746 ASSERT(sizeof(struct ethhdr) == ETH_HLEN);
1747 ASSERT(sizeof(d11regs_t) == SI_CORE_SIZE);
1748 ASSERT(sizeof(ofdm_phy_hdr_t) == D11_PHY_HDR_LEN);
1749 ASSERT(sizeof(cck_phy_hdr_t) == D11_PHY_HDR_LEN);
1750 ASSERT(sizeof(d11txh_t) == D11_TXH_LEN);
1751 ASSERT(sizeof(d11rxhdr_t) == RXHDR_LEN);
1752 ASSERT(sizeof(struct ieee80211_hdr) == DOT11_A4_HDR_LEN);
1753 ASSERT(sizeof(struct ieee80211_rts) == DOT11_RTS_LEN);
1754 ASSERT(sizeof(tx_status_t) == TXSTATUS_LEN);
1755 ASSERT(sizeof(struct ieee80211_ht_cap) == HT_CAP_IE_LEN);
1757 ASSERT(offsetof(wl_scan_params_t, channel_list) ==
1758 WL_SCAN_PARAMS_FIXED_SIZE);
1760 ASSERT(IS_ALIGNED(offsetof(wsec_key_t, data), sizeof(u32)));
1761 ASSERT(ISPOWEROF2(MA_WINDOW_SZ));
1763 ASSERT(sizeof(wlc_d11rxhdr_t) <= WL_HWRXOFF);
1766 * Number of replay counters value used in WPA IE must match # rxivs
1767 * supported in wsec_key_t struct. See 802.11i/D3.0 sect. 7.3.2.17
1768 * 'RSN Information Element' figure 8 for this mapping.
1770 ASSERT((WPA_CAP_16_REPLAY_CNTRS == WLC_REPLAY_CNTRS_VALUE
1771 && 16 == WLC_NUMRXIVS)
1772 || (WPA_CAP_4_REPLAY_CNTRS == WLC_REPLAY_CNTRS_VALUE
1773 && 4 == WLC_NUMRXIVS));
1775 /* allocate struct wlc_info state and its substructures */
1776 wlc = (struct wlc_info *) wlc_attach_malloc(unit, &err, device);
1786 wlc->band = wlc->bandstate[0];
1787 wlc->core = wlc->corestate;
1791 wlc->btparam = btparam;
1792 pub->_piomode = piomode;
1793 wlc->bandinit_pending = false;
1794 /* By default restrict TKIP associations from 11n STA's */
1795 wlc->ht_wsec_restriction = WLC_HT_TKIP_RESTRICT;
1797 /* populate struct wlc_info with default values */
1798 wlc_info_init(wlc, unit);
1800 /* update sta/ap related parameters */
1803 /* 11n_disable nvram */
1804 n_disabled = getintvar(pub->vars, "11n_disable");
1806 /* register a module (to handle iovars) */
1807 wlc_module_register(wlc->pub, wlc_iovars, "wlc_iovars", wlc,
1808 wlc_doiovar, NULL, NULL);
1810 /* low level attach steps(all hw accesses go inside, no more in rest of the attach) */
1811 err = wlc_bmac_attach(wlc, vendor, device, unit, piomode, osh, regsva,
1816 /* for some states, due to different info pointer(e,g, wlc, wlc_hw) or master/slave split,
1817 * HIGH driver(both monolithic and HIGH_ONLY) needs to sync states FROM BMAC portion driver
1819 if (!wlc_state_bmac_sync(wlc)) {
1824 pub->phy_11ncapable = WLC_PHY_11N_CAP(wlc->band);
1826 /* propagate *vars* from BMAC driver to high driver */
1827 wlc_bmac_copyfrom_vars(wlc->hw, &pub->vars, &wlc->vars_size);
1830 /* set maximum allowed duty cycle */
1831 wlc->tx_duty_cycle_ofdm =
1832 (u16) getintvar(pub->vars, "tx_duty_cycle_ofdm");
1833 wlc->tx_duty_cycle_cck =
1834 (u16) getintvar(pub->vars, "tx_duty_cycle_cck");
1836 wlc_stf_phy_chain_calc(wlc);
1838 /* txchain 1: txant 0, txchain 2: txant 1 */
1839 if (WLCISNPHY(wlc->band) && (wlc->stf->txstreams == 1))
1840 wlc->stf->txant = wlc->stf->hw_txchain - 1;
1842 /* push to BMAC driver */
1843 wlc_phy_stf_chain_init(wlc->band->pi, wlc->stf->hw_txchain,
1844 wlc->stf->hw_rxchain);
1846 /* pull up some info resulting from the low attach */
1849 for (i = 0; i < NFIFO; i++)
1850 wlc->core->txavail[i] = wlc->hw->txavail[i];
1853 wlc_bmac_hw_etheraddr(wlc->hw, wlc->perm_etheraddr);
1855 memcpy(&pub->cur_etheraddr, &wlc->perm_etheraddr, ETH_ALEN);
1857 for (j = 0; j < NBANDS(wlc); j++) {
1858 /* Use band 1 for single band 11a */
1859 if (IS_SINGLEBAND_5G(wlc->deviceid))
1862 wlc->band = wlc->bandstate[j];
1864 if (!wlc_attach_stf_ant_init(wlc)) {
1869 /* default contention windows size limits */
1870 wlc->band->CWmin = APHY_CWMIN;
1871 wlc->band->CWmax = PHY_CWMAX;
1873 /* init gmode value */
1874 if (BAND_2G(wlc->band->bandtype)) {
1875 wlc->band->gmode = GMODE_AUTO;
1876 wlc_protection_upd(wlc, WLC_PROT_G_USER,
1880 /* init _n_enab supported mode */
1881 if (WLC_PHY_11N_CAP(wlc->band) && CHIP_SUPPORTS_11N(wlc)) {
1882 if (n_disabled & WLFEATURE_DISABLE_11N) {
1884 wlc_protection_upd(wlc, WLC_PROT_N_USER, OFF);
1886 pub->_n_enab = SUPPORT_11N;
1887 wlc_protection_upd(wlc, WLC_PROT_N_USER,
1889 SUPPORT_11N) ? WL_11N_2x2 :
1894 /* init per-band default rateset, depend on band->gmode */
1895 wlc_default_rateset(wlc, &wlc->band->defrateset);
1897 /* fill in hw_rateset (used early by WLC_SET_RATESET) */
1898 wlc_rateset_filter(&wlc->band->defrateset,
1899 &wlc->band->hw_rateset, false,
1900 WLC_RATES_CCK_OFDM, RATE_MASK,
1901 (bool) N_ENAB(wlc->pub));
1904 /* update antenna config due to wlc->stf->txant/txchain/ant_rx_ovr change */
1905 wlc_stf_phy_txant_upd(wlc);
1907 /* attach each modules */
1908 err = wlc_attach_module(wlc);
1912 if (!wlc_timers_init(wlc, unit)) {
1913 WL_ERROR("wl%d: %s: wlc_init_timer failed\n", unit, __func__);
1918 /* depend on rateset, gmode */
1919 wlc->cmi = wlc_channel_mgr_attach(wlc);
1921 WL_ERROR("wl%d: %s: wlc_channel_mgr_attach failed\n",
1927 /* init default when all parameters are ready, i.e. ->rateset */
1928 wlc_bss_default_init(wlc);
1931 * Complete the wlc default state initializations..
1934 /* allocate our initial queue */
1935 qi = wlc_txq_alloc(wlc, osh);
1937 WL_ERROR("wl%d: %s: failed to malloc tx queue\n",
1942 wlc->active_queue = qi;
1944 wlc->bsscfg[0] = wlc->cfg;
1946 wlc->cfg->wlc = wlc;
1947 pub->txmaxpkts = MAXTXPKTS;
1949 pub->_cnt->version = WL_CNT_T_VERSION;
1950 pub->_cnt->length = sizeof(struct wl_cnt);
1952 WLCNTSET(pub->_wme_cnt->version, WL_WME_CNT_VERSION);
1953 WLCNTSET(pub->_wme_cnt->length, sizeof(wl_wme_cnt_t));
1955 wlc_wme_initparams_sta(wlc, &wlc->wme_param_ie);
1957 wlc->mimoft = FT_HT;
1958 wlc->ht_cap.cap_info = HT_CAP;
1959 if (HT_ENAB(wlc->pub))
1960 wlc->stf->ldpc = AUTO;
1962 wlc->mimo_40txbw = AUTO;
1963 wlc->ofdm_40txbw = AUTO;
1964 wlc->cck_40txbw = AUTO;
1965 wlc_update_mimo_band_bwcap(wlc, WLC_N_BW_20IN2G_40IN5G);
1967 /* Enable setting the RIFS Mode bit by default in HT Info IE */
1968 wlc->rifs_advert = AUTO;
1970 /* Set default values of SGI */
1971 if (WLC_SGI_CAP_PHY(wlc)) {
1972 wlc_ht_update_sgi_rx(wlc, (WLC_N_SGI_20 | WLC_N_SGI_40));
1974 } else if (WLCISSSLPNPHY(wlc->band)) {
1975 wlc_ht_update_sgi_rx(wlc, (WLC_N_SGI_20 | WLC_N_SGI_40));
1978 wlc_ht_update_sgi_rx(wlc, 0);
1982 /* *******nvram 11n config overrides Start ********* */
1984 /* apply the sgi override from nvram conf */
1985 if (n_disabled & WLFEATURE_DISABLE_11N_SGI_TX)
1988 if (n_disabled & WLFEATURE_DISABLE_11N_SGI_RX)
1989 wlc_ht_update_sgi_rx(wlc, 0);
1991 /* apply the stbc override from nvram conf */
1992 if (n_disabled & WLFEATURE_DISABLE_11N_STBC_TX) {
1993 wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = OFF;
1994 wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = OFF;
1995 wlc->ht_cap.cap_info &= ~IEEE80211_HT_CAP_TX_STBC;
1997 if (n_disabled & WLFEATURE_DISABLE_11N_STBC_RX)
1998 wlc_stf_stbc_rx_set(wlc, HT_CAP_RX_STBC_NO);
2000 /* apply the GF override from nvram conf */
2001 if (n_disabled & WLFEATURE_DISABLE_11N_GF)
2002 wlc->ht_cap.cap_info &= ~IEEE80211_HT_CAP_GRN_FLD;
2004 /* initialize radio_mpc_disable according to wlc->mpc */
2005 wlc_radio_mpc_upd(wlc);
2007 if ((wlc->pub->sih->chip) == BCM43235_CHIP_ID) {
2008 if ((getintvar(wlc->pub->vars, "aa2g") == 7) ||
2009 (getintvar(wlc->pub->vars, "aa5g") == 7)) {
2010 wlc_bmac_antsel_set(wlc->hw, 1);
2013 wlc_bmac_antsel_set(wlc->hw, wlc->asi->antsel_avail);
2022 WL_ERROR("wl%d: %s: failed with err %d\n", unit, __func__, err);
2031 static void wlc_attach_antgain_init(struct wlc_info *wlc)
2034 unit = wlc->pub->unit;
2036 if ((wlc->band->antgain == -1) && (wlc->pub->sromrev == 1)) {
2037 /* default antenna gain for srom rev 1 is 2 dBm (8 qdbm) */
2038 wlc->band->antgain = 8;
2039 } else if (wlc->band->antgain == -1) {
2040 WL_ERROR("wl%d: %s: Invalid antennas available in srom, using 2dB\n",
2042 wlc->band->antgain = 8;
2045 /* Older sroms specified gain in whole dbm only. In order
2046 * be able to specify qdbm granularity and remain backward compatible
2047 * the whole dbms are now encoded in only low 6 bits and remaining qdbms
2048 * are encoded in the hi 2 bits. 6 bit signed number ranges from
2049 * -32 - 31. Examples: 0x1 = 1 db,
2050 * 0xc1 = 1.75 db (1 + 3 quarters),
2051 * 0x3f = -1 (-1 + 0 quarters),
2052 * 0x7f = -.75 (-1 in low 6 bits + 1 quarters in hi 2 bits) = -3 qdbm.
2053 * 0xbf = -.50 (-1 in low 6 bits + 2 quarters in hi 2 bits) = -2 qdbm.
2055 gain = wlc->band->antgain & 0x3f;
2056 gain <<= 2; /* Sign extend */
2058 fract = (wlc->band->antgain & 0xc0) >> 6;
2059 wlc->band->antgain = 4 * gain + fract;
2063 static bool wlc_attach_stf_ant_init(struct wlc_info *wlc)
2070 unit = wlc->pub->unit;
2071 vars = wlc->pub->vars;
2072 bandtype = wlc->band->bandtype;
2074 /* get antennas available */
2075 aa = (s8) getintvar(vars, (BAND_5G(bandtype) ? "aa5g" : "aa2g"));
2077 aa = (s8) getintvar(vars,
2078 (BAND_5G(bandtype) ? "aa1" : "aa0"));
2079 if ((aa < 1) || (aa > 15)) {
2080 WL_ERROR("wl%d: %s: Invalid antennas available in srom (0x%x), using 3\n",
2081 unit, __func__, aa);
2085 /* reset the defaults if we have a single antenna */
2087 wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_0;
2088 wlc->stf->txant = ANT_TX_FORCE_0;
2089 } else if (aa == 2) {
2090 wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_1;
2091 wlc->stf->txant = ANT_TX_FORCE_1;
2095 /* Compute Antenna Gain */
2096 wlc->band->antgain =
2097 (s8) getintvar(vars, (BAND_5G(bandtype) ? "ag1" : "ag0"));
2098 wlc_attach_antgain_init(wlc);
2104 static void wlc_timers_deinit(struct wlc_info *wlc)
2106 /* free timer state */
2108 wl_free_timer(wlc->wl, wlc->wdtimer);
2109 wlc->wdtimer = NULL;
2111 if (wlc->radio_timer) {
2112 wl_free_timer(wlc->wl, wlc->radio_timer);
2113 wlc->radio_timer = NULL;
2117 static void wlc_detach_module(struct wlc_info *wlc)
2120 wlc_antsel_detach(wlc->asi);
2125 wlc_ampdu_detach(wlc->ampdu);
2129 wlc_stf_detach(wlc);
2133 * Return a count of the number of driver callbacks still pending.
2135 * General policy is that wlc_detach can only dealloc/free software states. It can NOT
2136 * touch hardware registers since the d11core may be in reset and clock may not be available.
2137 * One exception is sb register access, which is possible if crystal is turned on
2138 * After "down" state, driver should avoid software timer with the exception of radio_monitor.
2140 uint wlc_detach(struct wlc_info *wlc)
2148 WL_TRACE("wl%d: %s\n", wlc->pub->unit, __func__);
2150 ASSERT(!wlc->pub->up);
2152 callbacks += wlc_bmac_detach(wlc);
2154 /* delete software timers */
2155 if (!wlc_radio_monitor_stop(wlc))
2158 wlc_channel_mgr_detach(wlc->cmi);
2160 wlc_timers_deinit(wlc);
2162 wlc_detach_module(wlc);
2164 /* free other state */
2168 if (wlc->country_ie_override) {
2169 kfree(wlc->country_ie_override);
2170 wlc->country_ie_override = NULL;
2175 /* free dumpcb list */
2176 struct dumpcb_s *prev, *ptr;
2177 prev = ptr = wlc->dumpcb_head;
2183 wlc->dumpcb_head = NULL;
2186 /* Detach from iovar manager */
2187 wlc_module_unregister(wlc->pub, "wlc_iovars", wlc);
2189 while (wlc->tx_queues != NULL) {
2190 wlc_txq_free(wlc, wlc->osh, wlc->tx_queues);
2194 * consistency check: wlc_module_register/wlc_module_unregister calls
2195 * should match therefore nothing should be left here.
2197 for (i = 0; i < WLC_MAXMODULES; i++)
2198 ASSERT(wlc->modulecb[i].name[0] == '\0');
2200 wlc_detach_mfree(wlc);
2204 /* update state that depends on the current value of "ap" */
2205 void wlc_ap_upd(struct wlc_info *wlc)
2207 if (AP_ENAB(wlc->pub))
2208 wlc->PLCPHdr_override = WLC_PLCP_AUTO; /* AP: short not allowed, but not enforced */
2210 wlc->PLCPHdr_override = WLC_PLCP_SHORT; /* STA-BSS; short capable */
2212 /* disable vlan_mode on AP since some legacy STAs cannot rx tagged pkts */
2213 wlc->vlan_mode = AP_ENAB(wlc->pub) ? OFF : AUTO;
2219 /* read hwdisable state and propagate to wlc flag */
2220 static void wlc_radio_hwdisable_upd(struct wlc_info *wlc)
2222 if (wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO || wlc->pub->hw_off)
2225 if (wlc_bmac_radio_read_hwdisabled(wlc->hw)) {
2226 mboolset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
2228 mboolclr(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
2232 /* return true if Minimum Power Consumption should be entered, false otherwise */
2233 bool wlc_is_non_delay_mpc(struct wlc_info *wlc)
2238 bool wlc_ismpc(struct wlc_info *wlc)
2240 return (wlc->mpc_delay_off == 0) && (wlc_is_non_delay_mpc(wlc));
2243 void wlc_radio_mpc_upd(struct wlc_info *wlc)
2245 bool mpc_radio, radio_state;
2248 * Clear the WL_RADIO_MPC_DISABLE bit when mpc feature is disabled
2249 * in case the WL_RADIO_MPC_DISABLE bit was set. Stop the radio
2250 * monitor also when WL_RADIO_MPC_DISABLE is the only reason that
2251 * the radio is going down.
2254 if (!wlc->pub->radio_disabled)
2256 mboolclr(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE);
2258 if (!wlc->pub->radio_disabled)
2259 wlc_radio_monitor_stop(wlc);
2264 * sync ismpc logic with WL_RADIO_MPC_DISABLE bit in wlc->pub->radio_disabled
2265 * to go ON, always call radio_upd synchronously
2266 * to go OFF, postpone radio_upd to later when context is safe(e.g. watchdog)
2269 (mboolisset(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE) ? OFF :
2271 mpc_radio = (wlc_ismpc(wlc) == true) ? OFF : ON;
2273 if (radio_state == ON && mpc_radio == OFF)
2274 wlc->mpc_delay_off = wlc->mpc_dlycnt;
2275 else if (radio_state == OFF && mpc_radio == ON) {
2276 mboolclr(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE);
2278 if (wlc->mpc_offcnt < WLC_MPC_THRESHOLD) {
2279 wlc->mpc_dlycnt = WLC_MPC_MAX_DELAYCNT;
2281 wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
2282 wlc->mpc_dur += OSL_SYSUPTIME() - wlc->mpc_laston_ts;
2284 /* Below logic is meant to capture the transition from mpc off to mpc on for reasons
2285 * other than wlc->mpc_delay_off keeping the mpc off. In that case reset
2286 * wlc->mpc_delay_off to wlc->mpc_dlycnt, so that we restart the countdown of mpc_delay_off
2288 if ((wlc->prev_non_delay_mpc == false) &&
2289 (wlc_is_non_delay_mpc(wlc) == true) && wlc->mpc_delay_off) {
2290 wlc->mpc_delay_off = wlc->mpc_dlycnt;
2292 wlc->prev_non_delay_mpc = wlc_is_non_delay_mpc(wlc);
2296 * centralized radio disable/enable function,
2297 * invoke radio enable/disable after updating hwradio status
2299 static void wlc_radio_upd(struct wlc_info *wlc)
2301 if (wlc->pub->radio_disabled) {
2302 wlc_radio_disable(wlc);
2304 wlc_radio_enable(wlc);
2308 /* maintain LED behavior in down state */
2309 static void wlc_down_led_upd(struct wlc_info *wlc)
2311 ASSERT(!wlc->pub->up);
2313 /* maintain LEDs while in down state, turn on sbclk if not available yet */
2314 /* turn on sbclk if necessary */
2315 if (!AP_ENAB(wlc->pub)) {
2316 wlc_pllreq(wlc, true, WLC_PLLREQ_FLIP);
2318 wlc_pllreq(wlc, false, WLC_PLLREQ_FLIP);
2322 /* update hwradio status and return it */
2323 bool wlc_check_radio_disabled(struct wlc_info *wlc)
2325 wlc_radio_hwdisable_upd(wlc);
2327 return mboolisset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE) ? true : false;
2330 void wlc_radio_disable(struct wlc_info *wlc)
2332 if (!wlc->pub->up) {
2333 wlc_down_led_upd(wlc);
2337 wlc_radio_monitor_start(wlc);
2341 static void wlc_radio_enable(struct wlc_info *wlc)
2346 if (DEVICEREMOVED(wlc))
2349 if (!wlc->down_override) { /* imposed by wl down/out ioctl */
2354 /* periodical query hw radio button while driver is "down" */
2355 static void wlc_radio_timer(void *arg)
2357 struct wlc_info *wlc = (struct wlc_info *) arg;
2359 if (DEVICEREMOVED(wlc)) {
2360 WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
2365 /* cap mpc off count */
2366 if (wlc->mpc_offcnt < WLC_MPC_MAX_DELAYCNT)
2369 /* validate all the reasons driver could be down and running this radio_timer */
2370 ASSERT(wlc->pub->radio_disabled || wlc->down_override);
2371 wlc_radio_hwdisable_upd(wlc);
2375 static bool wlc_radio_monitor_start(struct wlc_info *wlc)
2377 /* Don't start the timer if HWRADIO feature is disabled */
2378 if (wlc->radio_monitor || (wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO))
2381 wlc->radio_monitor = true;
2382 wlc_pllreq(wlc, true, WLC_PLLREQ_RADIO_MON);
2383 wl_add_timer(wlc->wl, wlc->radio_timer, TIMER_INTERVAL_RADIOCHK, true);
2387 bool wlc_radio_monitor_stop(struct wlc_info *wlc)
2389 if (!wlc->radio_monitor)
2392 ASSERT((wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO) !=
2395 wlc->radio_monitor = false;
2396 wlc_pllreq(wlc, false, WLC_PLLREQ_RADIO_MON);
2397 return wl_del_timer(wlc->wl, wlc->radio_timer);
2400 /* bring the driver down, but don't reset hardware */
2401 void wlc_out(struct wlc_info *wlc)
2403 wlc_bmac_set_noreset(wlc->hw, true);
2406 wlc_bmac_set_noreset(wlc->hw, false);
2408 /* core clk is true in BMAC driver due to noreset, need to mirror it in HIGH */
2411 /* This will make sure that when 'up' is done
2412 * after 'out' it'll restore hardware (especially gpios)
2414 wlc->pub->hw_up = false;
2418 /* Verify the sanity of wlc->tx_prec_map. This can be done only by making sure that
2419 * if there is no packet pending for the FIFO, then the corresponding prec bits should be set
2420 * in prec_map. Of course, ignore this rule when block_datafifo is set
2422 static bool wlc_tx_prec_map_verify(struct wlc_info *wlc)
2424 /* For non-WME, both fifos have overlapping prec_map. So it's an error only if both
2427 if (!EDCF_ENAB(wlc->pub)) {
2428 if (!(WLC_TX_FIFO_CHECK(wlc, TX_DATA_FIFO) ||
2429 WLC_TX_FIFO_CHECK(wlc, TX_CTL_FIFO)))
2435 return WLC_TX_FIFO_CHECK(wlc, TX_AC_BK_FIFO)
2436 && WLC_TX_FIFO_CHECK(wlc, TX_AC_BE_FIFO)
2437 && WLC_TX_FIFO_CHECK(wlc, TX_AC_VI_FIFO)
2438 && WLC_TX_FIFO_CHECK(wlc, TX_AC_VO_FIFO);
2442 static void wlc_watchdog_by_timer(void *arg)
2444 struct wlc_info *wlc = (struct wlc_info *) arg;
2446 if (WLC_WATCHDOG_TBTT(wlc)) {
2447 /* set to normal osl watchdog period */
2448 wl_del_timer(wlc->wl, wlc->wdtimer);
2449 wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG,
2454 /* common watchdog code */
2455 static void wlc_watchdog(void *arg)
2457 struct wlc_info *wlc = (struct wlc_info *) arg;
2461 WL_TRACE("wl%d: wlc_watchdog\n", wlc->pub->unit);
2466 if (DEVICEREMOVED(wlc)) {
2467 WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
2472 /* increment second count */
2475 /* delay radio disable */
2476 if (wlc->mpc_delay_off) {
2477 if (--wlc->mpc_delay_off == 0) {
2478 mboolset(wlc->pub->radio_disabled,
2479 WL_RADIO_MPC_DISABLE);
2480 if (wlc->mpc && wlc_ismpc(wlc))
2481 wlc->mpc_offcnt = 0;
2482 wlc->mpc_laston_ts = OSL_SYSUPTIME();
2487 wlc_radio_mpc_upd(wlc);
2488 /* radio sync: sw/hw/mpc --> radio_disable/radio_enable */
2489 wlc_radio_hwdisable_upd(wlc);
2491 /* if ismpc, driver should be in down state if up/down is allowed */
2492 if (wlc->mpc && wlc_ismpc(wlc))
2493 ASSERT(!wlc->pub->up);
2494 /* if radio is disable, driver may be down, quit here */
2495 if (wlc->pub->radio_disabled)
2498 wlc_bmac_watchdog(wlc);
2500 /* occasionally sample mac stat counters to detect 16-bit counter wrap */
2501 if ((wlc->pub->now % SW_TIMER_MAC_STAT_UPD) == 0)
2504 /* Manage TKIP countermeasures timers */
2505 FOREACH_BSS(wlc, i, cfg) {
2506 if (cfg->tk_cm_dt) {
2509 if (cfg->tk_cm_bt) {
2514 /* Call any registered watchdog handlers */
2515 for (i = 0; i < WLC_MAXMODULES; i++) {
2516 if (wlc->modulecb[i].watchdog_fn)
2517 wlc->modulecb[i].watchdog_fn(wlc->modulecb[i].hdl);
2520 if (WLCISNPHY(wlc->band) && !wlc->pub->tempsense_disable &&
2521 ((wlc->pub->now - wlc->tempsense_lasttime) >=
2522 WLC_TEMPSENSE_PERIOD)) {
2523 wlc->tempsense_lasttime = wlc->pub->now;
2524 wlc_tempsense_upd(wlc);
2526 /* BMAC_NOTE: for HIGH_ONLY driver, this seems being called after RPC bus failed */
2527 ASSERT(wlc_bmac_taclear(wlc->hw, true));
2529 /* Verify that tx_prec_map and fifos are in sync to avoid lock ups */
2530 ASSERT(wlc_tx_prec_map_verify(wlc));
2532 ASSERT(wlc_ps_check(wlc));
2535 /* make interface operational */
2536 int wlc_up(struct wlc_info *wlc)
2538 WL_TRACE("wl%d: %s:\n", wlc->pub->unit, __func__);
2540 /* HW is turned off so don't try to access it */
2541 if (wlc->pub->hw_off || DEVICEREMOVED(wlc))
2542 return BCME_RADIOOFF;
2544 if (!wlc->pub->hw_up) {
2545 wlc_bmac_hw_up(wlc->hw);
2546 wlc->pub->hw_up = true;
2549 if ((wlc->pub->boardflags & BFL_FEM)
2550 && (wlc->pub->sih->chip == BCM4313_CHIP_ID)) {
2551 if (wlc->pub->boardrev >= 0x1250
2552 && (wlc->pub->boardflags & BFL_FEM_BT)) {
2553 wlc_mhf(wlc, MHF5, MHF5_4313_GPIOCTRL,
2554 MHF5_4313_GPIOCTRL, WLC_BAND_ALL);
2556 wlc_mhf(wlc, MHF4, MHF4_EXTPA_ENABLE, MHF4_EXTPA_ENABLE,
2562 * Need to read the hwradio status here to cover the case where the system
2563 * is loaded with the hw radio disabled. We do not want to bring the driver up in this case.
2564 * if radio is disabled, abort up, lower power, start radio timer and return 0(for NDIS)
2565 * don't call radio_update to avoid looping wlc_up.
2567 * wlc_bmac_up_prep() returns either 0 or BCME_RADIOOFF only
2569 if (!wlc->pub->radio_disabled) {
2570 int status = wlc_bmac_up_prep(wlc->hw);
2571 if (status == BCME_RADIOOFF) {
2573 (wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE)) {
2575 wlc_bsscfg_t *bsscfg;
2576 mboolset(wlc->pub->radio_disabled,
2577 WL_RADIO_HW_DISABLE);
2579 FOREACH_BSS(wlc, idx, bsscfg) {
2580 if (!BSSCFG_STA(bsscfg)
2581 || !bsscfg->enable || !bsscfg->BSS)
2583 WL_ERROR("wl%d.%d: wlc_up: rfdisable -> " "wlc_bsscfg_disable()\n",
2584 wlc->pub->unit, idx);
2591 if (wlc->pub->radio_disabled) {
2592 wlc_radio_monitor_start(wlc);
2596 /* wlc_bmac_up_prep has done wlc_corereset(). so clk is on, set it */
2599 wlc_radio_monitor_stop(wlc);
2601 /* Set EDCF hostflags */
2602 if (EDCF_ENAB(wlc->pub)) {
2603 wlc_mhf(wlc, MHF1, MHF1_EDCF, MHF1_EDCF, WLC_BAND_ALL);
2605 wlc_mhf(wlc, MHF1, MHF1_EDCF, 0, WLC_BAND_ALL);
2608 if (WLC_WAR16165(wlc))
2609 wlc_mhf(wlc, MHF2, MHF2_PCISLOWCLKWAR, MHF2_PCISLOWCLKWAR,
2613 wlc->pub->up = true;
2615 if (wlc->bandinit_pending) {
2616 wlc_suspend_mac_and_wait(wlc);
2617 wlc_set_chanspec(wlc, wlc->default_bss->chanspec);
2618 wlc->bandinit_pending = false;
2619 wlc_enable_mac(wlc);
2622 wlc_bmac_up_finish(wlc->hw);
2624 /* other software states up after ISR is running */
2625 /* start APs that were to be brought up but are not up yet */
2626 /* if (AP_ENAB(wlc->pub)) wlc_restart_ap(wlc->ap); */
2628 /* Program the TX wme params with the current settings */
2629 wlc_wme_retries_write(wlc);
2631 /* start one second watchdog timer */
2632 ASSERT(!wlc->WDarmed);
2633 wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG, true);
2634 wlc->WDarmed = true;
2636 /* ensure antenna config is up to date */
2637 wlc_stf_phy_txant_upd(wlc);
2638 /* ensure LDPC config is in sync */
2639 wlc_ht_update_ldpc(wlc, wlc->stf->ldpc);
2644 /* Initialize the base precedence map for dequeueing from txq based on WME settings */
2645 static void wlc_tx_prec_map_init(struct wlc_info *wlc)
2647 wlc->tx_prec_map = WLC_PREC_BMP_ALL;
2648 memset(wlc->fifo2prec_map, 0, NFIFO * sizeof(u16));
2650 /* For non-WME, both fifos have overlapping MAXPRIO. So just disable all precedences
2651 * if either is full.
2653 if (!EDCF_ENAB(wlc->pub)) {
2654 wlc->fifo2prec_map[TX_DATA_FIFO] = WLC_PREC_BMP_ALL;
2655 wlc->fifo2prec_map[TX_CTL_FIFO] = WLC_PREC_BMP_ALL;
2657 wlc->fifo2prec_map[TX_AC_BK_FIFO] = WLC_PREC_BMP_AC_BK;
2658 wlc->fifo2prec_map[TX_AC_BE_FIFO] = WLC_PREC_BMP_AC_BE;
2659 wlc->fifo2prec_map[TX_AC_VI_FIFO] = WLC_PREC_BMP_AC_VI;
2660 wlc->fifo2prec_map[TX_AC_VO_FIFO] = WLC_PREC_BMP_AC_VO;
2664 static uint wlc_down_del_timer(struct wlc_info *wlc)
2672 * Mark the interface nonoperational, stop the software mechanisms,
2673 * disable the hardware, free any transient buffer state.
2674 * Return a count of the number of driver callbacks still pending.
2676 uint wlc_down(struct wlc_info *wlc)
2681 bool dev_gone = false;
2682 struct wlc_txq_info *qi;
2684 WL_TRACE("wl%d: %s:\n", wlc->pub->unit, __func__);
2686 /* check if we are already in the going down path */
2687 if (wlc->going_down) {
2688 WL_ERROR("wl%d: %s: Driver going down so return\n",
2689 wlc->pub->unit, __func__);
2695 /* in between, mpc could try to bring down again.. */
2696 wlc->going_down = true;
2698 callbacks += wlc_bmac_down_prep(wlc->hw);
2700 dev_gone = DEVICEREMOVED(wlc);
2702 /* Call any registered down handlers */
2703 for (i = 0; i < WLC_MAXMODULES; i++) {
2704 if (wlc->modulecb[i].down_fn)
2706 wlc->modulecb[i].down_fn(wlc->modulecb[i].hdl);
2709 /* cancel the watchdog timer */
2711 if (!wl_del_timer(wlc->wl, wlc->wdtimer))
2713 wlc->WDarmed = false;
2715 /* cancel all other timers */
2716 callbacks += wlc_down_del_timer(wlc);
2718 /* interrupt must have been blocked */
2719 ASSERT((wlc->macintmask == 0) || !wlc->pub->up);
2721 wlc->pub->up = false;
2723 wlc_phy_mute_upd(wlc->band->pi, false, PHY_MUTE_ALL);
2725 /* clear txq flow control */
2726 wlc_txflowcontrol_reset(wlc);
2728 /* flush tx queues */
2729 for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
2730 pktq_flush(wlc->osh, &qi->q, true, NULL, 0);
2731 ASSERT(pktq_empty(&qi->q));
2734 callbacks += wlc_bmac_down_finish(wlc->hw);
2736 /* wlc_bmac_down_finish has done wlc_coredisable(). so clk is off */
2740 /* Verify all packets are flushed from the driver */
2741 if (wlc->osh->pktalloced != 0) {
2742 WL_ERROR("%d packets not freed at wlc_down!!!!!!\n",
2743 wlc->osh->pktalloced);
2746 /* Since all the packets should have been freed,
2747 * all callbacks should have been called
2749 for (i = 1; i <= wlc->pub->tunables->maxpktcb; i++)
2750 ASSERT(wlc->pkt_callback[i].fn == NULL);
2752 wlc->going_down = false;
2756 /* Set the current gmode configuration */
2757 int wlc_set_gmode(struct wlc_info *wlc, u8 gmode, bool config)
2762 /* Default to 54g Auto */
2763 s8 shortslot = WLC_SHORTSLOT_AUTO; /* Advertise and use shortslot (-1/0/1 Auto/Off/On) */
2764 bool shortslot_restrict = false; /* Restrict association to stations that support shortslot
2766 bool ignore_bcns = true; /* Ignore legacy beacons on the same channel */
2767 bool ofdm_basic = false; /* Make 6, 12, and 24 basic rates */
2768 int preamble = WLC_PLCP_LONG; /* Advertise and use short preambles (-1/0/1 Auto/Off/On) */
2769 bool preamble_restrict = false; /* Restrict association to stations that support short
2772 struct wlcband *band;
2774 /* if N-support is enabled, allow Gmode set as long as requested
2775 * Gmode is not GMODE_LEGACY_B
2777 if (N_ENAB(wlc->pub) && gmode == GMODE_LEGACY_B)
2778 return BCME_UNSUPPORTED;
2780 /* verify that we are dealing with 2G band and grab the band pointer */
2781 if (wlc->band->bandtype == WLC_BAND_2G)
2783 else if ((NBANDS(wlc) > 1) &&
2784 (wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype == WLC_BAND_2G))
2785 band = wlc->bandstate[OTHERBANDUNIT(wlc)];
2787 return BCME_BADBAND;
2789 /* Legacy or bust when no OFDM is supported by regulatory */
2790 if ((wlc_channel_locale_flags_in_band(wlc->cmi, band->bandunit) &
2791 WLC_NO_OFDM) && (gmode != GMODE_LEGACY_B))
2794 /* update configuration value */
2796 wlc_protection_upd(wlc, WLC_PROT_G_USER, gmode);
2798 /* Clear supported rates filter */
2799 memset(&wlc->sup_rates_override, 0, sizeof(wlc_rateset_t));
2801 /* Clear rateset override */
2802 memset(&rs, 0, sizeof(wlc_rateset_t));
2805 case GMODE_LEGACY_B:
2806 shortslot = WLC_SHORTSLOT_OFF;
2807 wlc_rateset_copy(&gphy_legacy_rates, &rs);
2812 if (AP_ENAB(wlc->pub))
2813 wlc_rateset_copy(&cck_rates, &wlc->sup_rates_override);
2817 /* Accept defaults */
2822 preamble = WLC_PLCP_SHORT;
2823 preamble_restrict = true;
2826 case GMODE_PERFORMANCE:
2827 if (AP_ENAB(wlc->pub)) /* Put all rates into the Supported Rates element */
2828 wlc_rateset_copy(&cck_ofdm_rates,
2829 &wlc->sup_rates_override);
2831 shortslot = WLC_SHORTSLOT_ON;
2832 shortslot_restrict = true;
2834 preamble = WLC_PLCP_SHORT;
2835 preamble_restrict = true;
2840 WL_ERROR("wl%d: %s: invalid gmode %d\n",
2841 wlc->pub->unit, __func__, gmode);
2842 return BCME_UNSUPPORTED;
2846 * If we are switching to gmode == GMODE_LEGACY_B,
2847 * clean up rate info that may refer to OFDM rates.
2849 if ((gmode == GMODE_LEGACY_B) && (band->gmode != GMODE_LEGACY_B)) {
2850 band->gmode = gmode;
2851 if (band->rspec_override && !IS_CCK(band->rspec_override)) {
2852 band->rspec_override = 0;
2853 wlc_reprate_init(wlc);
2855 if (band->mrspec_override && !IS_CCK(band->mrspec_override)) {
2856 band->mrspec_override = 0;
2860 band->gmode = gmode;
2862 wlc->ignore_bcns = ignore_bcns;
2864 wlc->shortslot_override = shortslot;
2866 if (AP_ENAB(wlc->pub)) {
2867 /* wlc->ap->shortslot_restrict = shortslot_restrict; */
2868 wlc->PLCPHdr_override =
2870 WLC_PLCP_LONG) ? WLC_PLCP_SHORT : WLC_PLCP_AUTO;
2873 if ((AP_ENAB(wlc->pub) && preamble != WLC_PLCP_LONG)
2874 || preamble == WLC_PLCP_SHORT)
2875 wlc->default_bss->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2877 wlc->default_bss->capability &= ~WLAN_CAPABILITY_SHORT_PREAMBLE;
2879 /* Update shortslot capability bit for AP and IBSS */
2880 if ((AP_ENAB(wlc->pub) && shortslot == WLC_SHORTSLOT_AUTO) ||
2881 shortslot == WLC_SHORTSLOT_ON)
2882 wlc->default_bss->capability |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2884 wlc->default_bss->capability &=
2885 ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
2887 /* Use the default 11g rateset */
2889 wlc_rateset_copy(&cck_ofdm_rates, &rs);
2892 for (i = 0; i < rs.count; i++) {
2893 if (rs.rates[i] == WLC_RATE_6M
2894 || rs.rates[i] == WLC_RATE_12M
2895 || rs.rates[i] == WLC_RATE_24M)
2896 rs.rates[i] |= WLC_RATE_FLAG;
2900 /* Set default bss rateset */
2901 wlc->default_bss->rateset.count = rs.count;
2902 memcpy(wlc->default_bss->rateset.rates, rs.rates,
2903 sizeof(wlc->default_bss->rateset.rates));
2908 static int wlc_nmode_validate(struct wlc_info *wlc, s32 nmode)
2920 if (!(WLC_PHY_11N_CAP(wlc->band)))
2932 int wlc_set_nmode(struct wlc_info *wlc, s32 nmode)
2937 err = wlc_nmode_validate(wlc, nmode);
2944 wlc->pub->_n_enab = OFF;
2945 wlc->default_bss->flags &= ~WLC_BSS_HT;
2946 /* delete the mcs rates from the default and hw ratesets */
2947 wlc_rateset_mcs_clear(&wlc->default_bss->rateset);
2948 for (i = 0; i < NBANDS(wlc); i++) {
2949 memset(wlc->bandstate[i]->hw_rateset.mcs, 0,
2951 if (IS_MCS(wlc->band->rspec_override)) {
2952 wlc->bandstate[i]->rspec_override = 0;
2953 wlc_reprate_init(wlc);
2955 if (IS_MCS(wlc->band->mrspec_override))
2956 wlc->bandstate[i]->mrspec_override = 0;
2961 if (wlc->stf->txstreams == WL_11N_3x3)
2967 ASSERT(WLC_PHY_11N_CAP(wlc->band));
2968 /* force GMODE_AUTO if NMODE is ON */
2969 wlc_set_gmode(wlc, GMODE_AUTO, true);
2970 if (nmode == WL_11N_3x3)
2971 wlc->pub->_n_enab = SUPPORT_HT;
2973 wlc->pub->_n_enab = SUPPORT_11N;
2974 wlc->default_bss->flags |= WLC_BSS_HT;
2975 /* add the mcs rates to the default and hw ratesets */
2976 wlc_rateset_mcs_build(&wlc->default_bss->rateset,
2977 wlc->stf->txstreams);
2978 for (i = 0; i < NBANDS(wlc); i++)
2979 memcpy(wlc->bandstate[i]->hw_rateset.mcs,
2980 wlc->default_bss->rateset.mcs, MCSSET_LEN);
2991 static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg)
2993 wlc_rateset_t rs, new;
2996 memcpy(&rs, rs_arg, sizeof(wlc_rateset_t));
2998 /* check for bad count value */
2999 if ((rs.count == 0) || (rs.count > WLC_NUMRATES))
3000 return BCME_BADRATESET;
3002 /* try the current band */
3003 bandunit = wlc->band->bandunit;
3004 memcpy(&new, &rs, sizeof(wlc_rateset_t));
3005 if (wlc_rate_hwrs_filter_sort_validate
3006 (&new, &wlc->bandstate[bandunit]->hw_rateset, true,
3007 wlc->stf->txstreams))
3010 /* try the other band */
3011 if (IS_MBAND_UNLOCKED(wlc)) {
3012 bandunit = OTHERBANDUNIT(wlc);
3013 memcpy(&new, &rs, sizeof(wlc_rateset_t));
3014 if (wlc_rate_hwrs_filter_sort_validate(&new,
3016 bandstate[bandunit]->
3018 wlc->stf->txstreams))
3025 /* apply new rateset */
3026 memcpy(&wlc->default_bss->rateset, &new, sizeof(wlc_rateset_t));
3027 memcpy(&wlc->bandstate[bandunit]->defrateset, &new,
3028 sizeof(wlc_rateset_t));
3032 /* simplified integer set interface for common ioctl handler */
3033 int wlc_set(struct wlc_info *wlc, int cmd, int arg)
3035 return wlc_ioctl(wlc, cmd, (void *)&arg, sizeof(arg), NULL);
3038 /* simplified integer get interface for common ioctl handler */
3039 int wlc_get(struct wlc_info *wlc, int cmd, int *arg)
3041 return wlc_ioctl(wlc, cmd, arg, sizeof(int), NULL);
3044 static void wlc_ofdm_rateset_war(struct wlc_info *wlc)
3049 if (wlc->cfg->associated)
3050 r = wlc->cfg->current_bss->rateset.rates[0];
3052 r = wlc->default_bss->rateset.rates[0];
3054 wlc_phy_ofdm_rateset_war(wlc->band->pi, war);
3060 wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
3061 struct wlc_if *wlcif)
3063 return _wlc_ioctl(wlc, cmd, arg, len, wlcif);
3066 /* common ioctl handler. return: 0=ok, -1=error, positive=particular error */
3068 _wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
3069 struct wlc_if *wlcif)
3076 struct scb *nextscb;
3080 wlc_bsscfg_t *bsscfg;
3081 struct osl_info *osh;
3082 wlc_bss_info_t *current_bss;
3084 /* update bsscfg pointer */
3085 bsscfg = NULL; /* XXX: Hack bsscfg to be size one and use this globally */
3088 /* initialize the following to get rid of compiler warning */
3094 /* If the device is turned off, then it's not "removed" */
3095 if (!wlc->pub->hw_off && DEVICEREMOVED(wlc)) {
3096 WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
3101 ASSERT(!(wlc->pub->hw_off && wlc->pub->up));
3103 /* default argument is generic integer */
3104 pval = arg ? (int *)arg:NULL;
3106 /* This will prevent the misaligned access */
3107 if (pval && (u32) len >= sizeof(val))
3108 memcpy(&val, pval, sizeof(val));
3112 /* bool conversion to avoid duplication below */
3113 bool_val = val != 0;
3115 if (cmd != WLC_SET_CHANNEL)
3116 WL_NONE("WLC_IOCTL: cmd %d val 0x%x (%d) len %d\n",
3117 cmd, (uint)val, val, len);
3123 /* A few commands don't need any arguments; all the others do. */
3131 case WLC_START_CHANNEL_QA:
3136 if ((arg == NULL) || (len <= 0)) {
3137 WL_ERROR("wl%d: %s: Command %d needs arguments\n",
3138 wlc->pub->unit, __func__, cmd);
3139 bcmerror = BCME_BADARG;
3147 case WLC_GET_MSGLEVEL:
3148 *pval = wl_msg_level;
3151 case WLC_SET_MSGLEVEL:
3156 case WLC_GET_INSTANCE:
3157 *pval = wlc->pub->unit;
3160 case WLC_GET_CHANNEL:{
3161 channel_info_t *ci = (channel_info_t *) arg;
3163 ASSERT(len > (int)sizeof(ci));
3166 CHSPEC_CHANNEL(WLC_BAND_PI_RADIO_CHANSPEC);
3167 ci->target_channel =
3168 CHSPEC_CHANNEL(wlc->default_bss->chanspec);
3169 ci->scan_channel = 0;
3174 case WLC_SET_CHANNEL:{
3175 chanspec_t chspec = CH20MHZ_CHSPEC(val);
3177 if (val < 0 || val > MAXCHANNEL) {
3178 bcmerror = BCME_OUTOFRANGECHAN;
3182 if (!wlc_valid_chanspec_db(wlc->cmi, chspec)) {
3183 bcmerror = BCME_BADCHAN;
3187 if (!wlc->pub->up && IS_MBAND_UNLOCKED(wlc)) {
3188 if (wlc->band->bandunit !=
3189 CHSPEC_WLCBANDUNIT(chspec))
3190 wlc->bandinit_pending = true;
3192 wlc->bandinit_pending = false;
3195 wlc->default_bss->chanspec = chspec;
3196 /* wlc_BSSinit() will sanitize the rateset before using it.. */
3198 (WLC_BAND_PI_RADIO_CHANSPEC != chspec)) {
3199 wlc_set_home_chanspec(wlc, chspec);
3200 wlc_suspend_mac_and_wait(wlc);
3201 wlc_set_chanspec(wlc, chspec);
3202 wlc_enable_mac(wlc);
3208 case WLC_GET_UCFLAGS:
3209 if (!wlc->pub->up) {
3210 bcmerror = BCME_NOTUP;
3214 /* optional band is stored in the second integer of incoming buffer */
3217 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3219 /* bcmerror checking */
3220 bcmerror = wlc_iocregchk(wlc, band);
3224 if (val >= MHFMAX) {
3225 bcmerror = BCME_RANGE;
3229 *pval = wlc_bmac_mhf_get(wlc->hw, (u8) val, WLC_BAND_AUTO);
3232 case WLC_SET_UCFLAGS:
3233 if (!wlc->pub->up) {
3234 bcmerror = BCME_NOTUP;
3238 /* optional band is stored in the second integer of incoming buffer */
3241 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3243 /* bcmerror checking */
3244 bcmerror = wlc_iocregchk(wlc, band);
3250 bcmerror = BCME_RANGE;
3254 wlc_mhf(wlc, (u8) i, 0xffff, (u16) (val >> NBITS(u16)),
3261 /* optional band is stored in the second integer of incoming buffer */
3264 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3266 /* bcmerror checking */
3267 bcmerror = wlc_iocregchk(wlc, band);
3272 bcmerror = BCME_BADADDR;
3276 *pval = wlc_read_shm(wlc, (u16) val);
3282 /* optional band is stored in the second integer of incoming buffer */
3285 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3287 /* bcmerror checking */
3288 bcmerror = wlc_iocregchk(wlc, band);
3293 bcmerror = BCME_BADADDR;
3297 wlc_write_shm(wlc, (u16) val,
3298 (u16) (val >> NBITS(u16)));
3301 case WLC_R_REG: /* MAC registers */
3303 r = (rw_reg_t *) arg;
3304 band = WLC_BAND_AUTO;
3306 if (len < (int)(sizeof(rw_reg_t) - sizeof(uint))) {
3307 bcmerror = BCME_BUFTOOSHORT;
3311 if (len >= (int)sizeof(rw_reg_t))
3314 /* bcmerror checking */
3315 bcmerror = wlc_iocregchk(wlc, band);
3319 if ((r->byteoff + r->size) > sizeof(d11regs_t)) {
3320 bcmerror = BCME_BADADDR;
3323 if (r->size == sizeof(u32))
3325 R_REG((u32 *)((unsigned char *)(unsigned long)regs +
3327 else if (r->size == sizeof(u16))
3329 R_REG((u16 *)((unsigned char *)(unsigned long)regs +
3332 bcmerror = BCME_BADADDR;
3337 r = (rw_reg_t *) arg;
3338 band = WLC_BAND_AUTO;
3340 if (len < (int)(sizeof(rw_reg_t) - sizeof(uint))) {
3341 bcmerror = BCME_BUFTOOSHORT;
3345 if (len >= (int)sizeof(rw_reg_t))
3348 /* bcmerror checking */
3349 bcmerror = wlc_iocregchk(wlc, band);
3353 if (r->byteoff + r->size > sizeof(d11regs_t)) {
3354 bcmerror = BCME_BADADDR;
3357 if (r->size == sizeof(u32))
3358 W_REG((u32 *)((unsigned char *)(unsigned long) regs +
3359 r->byteoff), r->val);
3360 else if (r->size == sizeof(u16))
3361 W_REG((u16 *)((unsigned char *)(unsigned long) regs +
3362 r->byteoff), r->val);
3364 bcmerror = BCME_BADADDR;
3369 *pval = wlc->stf->txant;
3373 bcmerror = wlc_stf_ant_txant_validate(wlc, (s8) val);
3377 wlc->stf->txant = (s8) val;
3379 /* if down, we are done */
3383 wlc_suspend_mac_and_wait(wlc);
3385 wlc_stf_phy_txant_upd(wlc);
3386 wlc_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec);
3388 wlc_enable_mac(wlc);
3392 case WLC_GET_ANTDIV:{
3395 /* return configured value if core is down */
3396 if (!wlc->pub->up) {
3397 *pval = wlc->stf->ant_rx_ovr;
3400 if (wlc_phy_ant_rxdiv_get
3401 (wlc->band->pi, &phy_antdiv))
3402 *pval = (int)phy_antdiv;
3404 *pval = (int)wlc->stf->ant_rx_ovr;
3409 case WLC_SET_ANTDIV:
3410 /* values are -1=driver default, 0=force0, 1=force1, 2=start1, 3=start0 */
3411 if ((val < -1) || (val > 3)) {
3412 bcmerror = BCME_RANGE;
3417 val = ANT_RX_DIV_DEF;
3419 wlc->stf->ant_rx_ovr = (u8) val;
3420 wlc_phy_ant_rxdiv_set(wlc->band->pi, (u8) val);
3423 case WLC_GET_RX_ANT:{ /* get latest used rx antenna */
3426 if (!wlc->pub->up) {
3427 bcmerror = BCME_NOTUP;
3431 rxstatus = R_REG(&wlc->regs->phyrxstatus0);
3432 if (rxstatus == 0xdead || rxstatus == (u16) -1) {
3433 bcmerror = BCME_ERROR;
3436 *pval = (rxstatus & PRXS0_RXANT_UPSUBBAND) ? 1 : 0;
3441 case WLC_GET_UCANTDIV:
3443 bcmerror = BCME_NOCLK;
3448 (wlc_bmac_mhf_get(wlc->hw, MHF1, WLC_BAND_AUTO) &
3452 case WLC_SET_UCANTDIV:{
3453 if (!wlc->pub->up) {
3454 bcmerror = BCME_NOTUP;
3458 /* if multiband, band must be locked */
3459 if (IS_MBAND_UNLOCKED(wlc)) {
3460 bcmerror = BCME_NOTBANDLOCKED;
3464 wlc_mhf(wlc, MHF1, MHF1_ANTDIV,
3465 (val ? MHF1_ANTDIV : 0), WLC_BAND_AUTO);
3468 #endif /* defined(BCMDBG) */
3475 if (val >= 1 && val <= RETRY_SHORT_MAX) {
3477 wlc->SRL = (u16) val;
3479 wlc_bmac_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
3481 for (ac = 0; ac < AC_COUNT; ac++) {
3482 WLC_WME_RETRY_SHORT_SET(wlc, ac, wlc->SRL);
3484 wlc_wme_retries_write(wlc);
3486 bcmerror = BCME_RANGE;
3494 if (val >= 1 && val <= 255) {
3496 wlc->LRL = (u16) val;
3498 wlc_bmac_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
3500 for (ac = 0; ac < AC_COUNT; ac++) {
3501 WLC_WME_RETRY_LONG_SET(wlc, ac, wlc->LRL);
3503 wlc_wme_retries_write(wlc);
3505 bcmerror = BCME_RANGE;
3509 *pval = wlc->band->CWmin;
3514 bcmerror = BCME_NOCLK;
3518 if (val >= 1 && val <= 255) {
3519 wlc_set_cwmin(wlc, (u16) val);
3521 bcmerror = BCME_RANGE;
3525 *pval = wlc->band->CWmax;
3530 bcmerror = BCME_NOCLK;
3534 if (val >= 255 && val <= 2047) {
3535 wlc_set_cwmax(wlc, (u16) val);
3537 bcmerror = BCME_RANGE;
3540 case WLC_GET_RADIO: /* use mask if don't want to expose some internal bits */
3541 *pval = wlc->pub->radio_disabled;
3544 case WLC_SET_RADIO:{ /* 32 bits input, higher 16 bits are mask, lower 16 bits are value to
3547 u16 radiomask, radioval;
3549 WL_RADIO_SW_DISABLE | WL_RADIO_HW_DISABLE;
3552 radiomask = (val & 0xffff0000) >> 16;
3553 radioval = val & 0x0000ffff;
3555 if ((radiomask == 0) || (radiomask & ~validbits)
3556 || (radioval & ~validbits)
3557 || ((radioval & ~radiomask) != 0)) {
3558 WL_ERROR("SET_RADIO with wrong bits 0x%x\n",
3560 bcmerror = BCME_RANGE;
3565 (wlc->pub->radio_disabled & ~radiomask) | radioval;
3566 wlc->pub->radio_disabled = new;
3568 wlc_radio_hwdisable_upd(wlc);
3573 case WLC_GET_PHYTYPE:
3574 *pval = WLC_PHYTYPE(wlc->band->phytype);
3579 if ((val >= 0) && (val < WLC_MAX_WSEC_KEYS(wlc))) {
3582 wsec_key_t *src_key = wlc->wsec_keys[val];
3584 if (len < (int)sizeof(key)) {
3585 bcmerror = BCME_BUFTOOSHORT;
3589 memset((char *)&key, 0, sizeof(key));
3591 key.index = src_key->id;
3592 key.len = src_key->len;
3593 memcpy(key.data, src_key->data, key.len);
3594 key.algo = src_key->algo;
3595 if (WSEC_SOFTKEY(wlc, src_key, bsscfg))
3596 key.flags |= WL_SOFT_KEY;
3597 if (src_key->flags & WSEC_PRIMARY_KEY)
3598 key.flags |= WL_PRIMARY_KEY;
3600 memcpy(key.ea, src_key->ea, ETH_ALEN);
3603 memcpy(arg, &key, sizeof(key));
3605 bcmerror = BCME_BADKEYIDX;
3607 #endif /* defined(BCMDBG) */
3611 wlc_iovar_op(wlc, "wsec_key", NULL, 0, arg, len, IOV_SET,
3615 case WLC_GET_KEY_SEQ:{
3618 if (len < DOT11_WPA_KEY_RSC_LEN) {
3619 bcmerror = BCME_BUFTOOSHORT;
3623 /* Return the key's tx iv as an EAPOL sequence counter.
3624 * This will be used to supply the RSC value to a supplicant.
3625 * The format is 8 bytes, with least significant in seq[0].
3628 key = WSEC_KEY(wlc, val);
3629 if ((val >= 0) && (val < WLC_MAX_WSEC_KEYS(wlc)) &&
3631 u8 seq[DOT11_WPA_KEY_RSC_LEN];
3634 /* group keys in WPA-NONE (IBSS only, AES and TKIP) use a global TXIV */
3635 if ((bsscfg->WPA_auth & WPA_AUTH_NONE) &&
3636 is_zero_ether_addr(key->ea)) {
3637 lo = bsscfg->wpa_none_txiv.lo;
3638 hi = bsscfg->wpa_none_txiv.hi;
3644 /* format the buffer, low to high */
3646 seq[1] = (lo >> 8) & 0xff;
3648 seq[3] = (hi >> 8) & 0xff;
3649 seq[4] = (hi >> 16) & 0xff;
3650 seq[5] = (hi >> 24) & 0xff;
3654 memcpy(arg, seq, sizeof(seq));
3656 bcmerror = BCME_BADKEYIDX;
3661 case WLC_GET_CURR_RATESET:{
3662 wl_rateset_t *ret_rs = (wl_rateset_t *) arg;
3665 if (bsscfg->associated)
3666 rs = ¤t_bss->rateset;
3668 rs = &wlc->default_bss->rateset;
3670 if (len < (int)(rs->count + sizeof(rs->count))) {
3671 bcmerror = BCME_BUFTOOSHORT;
3675 /* Copy only legacy rateset section */
3676 ret_rs->count = rs->count;
3677 memcpy(&ret_rs->rates, &rs->rates, rs->count);
3681 case WLC_GET_RATESET:{
3683 wl_rateset_t *ret_rs = (wl_rateset_t *) arg;
3685 memset(&rs, 0, sizeof(wlc_rateset_t));
3686 wlc_default_rateset(wlc, (wlc_rateset_t *) &rs);
3688 if (len < (int)(rs.count + sizeof(rs.count))) {
3689 bcmerror = BCME_BUFTOOSHORT;
3693 /* Copy only legacy rateset section */
3694 ret_rs->count = rs.count;
3695 memcpy(&ret_rs->rates, &rs.rates, rs.count);
3699 case WLC_SET_RATESET:{
3701 wl_rateset_t *in_rs = (wl_rateset_t *) arg;
3703 if (len < (int)(in_rs->count + sizeof(in_rs->count))) {
3704 bcmerror = BCME_BUFTOOSHORT;
3708 if (in_rs->count > WLC_NUMRATES) {
3709 bcmerror = BCME_BUFTOOLONG;
3713 memset(&rs, 0, sizeof(wlc_rateset_t));
3715 /* Copy only legacy rateset section */
3716 rs.count = in_rs->count;
3717 memcpy(&rs.rates, &in_rs->rates, rs.count);
3719 /* merge rateset coming in with the current mcsset */
3720 if (N_ENAB(wlc->pub)) {
3721 if (bsscfg->associated)
3723 ¤t_bss->rateset.mcs[0],
3727 &wlc->default_bss->rateset.mcs[0],
3731 bcmerror = wlc_set_rateset(wlc, &rs);
3734 wlc_ofdm_rateset_war(wlc);
3739 case WLC_GET_BCNPRD:
3740 if (BSSCFG_STA(bsscfg) && bsscfg->BSS && bsscfg->associated)
3741 *pval = current_bss->beacon_period;
3743 *pval = wlc->default_bss->beacon_period;
3746 case WLC_SET_BCNPRD:
3747 /* range [1, 0xffff] */
3748 if (val >= DOT11_MIN_BEACON_PERIOD
3749 && val <= DOT11_MAX_BEACON_PERIOD) {
3750 wlc->default_bss->beacon_period = (u16) val;
3752 bcmerror = BCME_RANGE;
3755 case WLC_GET_DTIMPRD:
3756 if (BSSCFG_STA(bsscfg) && bsscfg->BSS && bsscfg->associated)
3757 *pval = current_bss->dtim_period;
3759 *pval = wlc->default_bss->dtim_period;
3762 case WLC_SET_DTIMPRD:
3763 /* range [1, 0xff] */
3764 if (val >= DOT11_MIN_DTIM_PERIOD
3765 && val <= DOT11_MAX_DTIM_PERIOD) {
3766 wlc->default_bss->dtim_period = (u8) val;
3768 bcmerror = BCME_RANGE;
3777 if ((val >= PM_OFF) && (val <= PM_MAX)) {
3781 /* Change watchdog driver to align watchdog with tbtt if possible */
3782 wlc_watchdog_upd(wlc, PS_ALLOWED(wlc));
3784 bcmerror = BCME_ERROR;
3786 #endif /* SUPPORT_PS */
3791 if (AP_ENAB(wlc->pub)) {
3792 bcmerror = BCME_NOTSTA;
3799 if (AP_ENAB(wlc->pub)) {
3800 bcmerror = BCME_NOTSTA;
3804 wlc->wake = val ? true : false;
3806 /* if down, we're done */
3810 /* apply to the mac */
3811 wlc_set_ps_ctrl(wlc);
3814 #endif /* SUPPORT_PS */
3816 case WLC_GET_REVINFO:
3817 bcmerror = wlc_get_revision_info(wlc, arg, (uint) len);
3821 *pval = (int)AP_ENAB(wlc->pub);
3825 if (bsscfg->associated)
3826 *pval = (int)current_bss->atim_window;
3828 *pval = (int)wlc->default_bss->atim_window;
3832 wlc->default_bss->atim_window = (u32) val;
3835 case WLC_GET_PKTCNTS:{
3836 get_pktcnt_t *pktcnt = (get_pktcnt_t *) pval;
3838 pktcnt->rx_good_pkt = wlc->pub->_cnt->rxframe;
3839 pktcnt->rx_bad_pkt = wlc->pub->_cnt->rxerror;
3840 pktcnt->tx_good_pkt =
3841 wlc->pub->_cnt->txfrmsnt;
3842 pktcnt->tx_bad_pkt =
3843 wlc->pub->_cnt->txerror +
3844 wlc->pub->_cnt->txfail;
3845 if (len >= (int)sizeof(get_pktcnt_t)) {
3846 /* Be backward compatible - only if buffer is large enough */
3847 pktcnt->rx_ocast_good_pkt =
3848 wlc->pub->_cnt->rxmfrmocast;
3853 #ifdef SUPPORT_HWKEY
3856 wlc_iovar_op(wlc, "wsec", NULL, 0, arg, len, IOV_GET,
3862 wlc_iovar_op(wlc, "wsec", NULL, 0, arg, len, IOV_SET,
3866 case WLC_GET_WPA_AUTH:
3867 *pval = (int)bsscfg->WPA_auth;
3870 case WLC_SET_WPA_AUTH:
3871 /* change of WPA_Auth modifies the PS_ALLOWED state */
3872 if (BSSCFG_STA(bsscfg)) {
3873 bsscfg->WPA_auth = (u16) val;
3875 bsscfg->WPA_auth = (u16) val;
3877 #endif /* SUPPORT_HWKEY */
3879 case WLC_GET_BANDLIST:
3880 /* count of number of bands, followed by each band type */
3881 *pval++ = NBANDS(wlc);
3882 *pval++ = wlc->band->bandtype;
3883 if (NBANDS(wlc) > 1)
3884 *pval++ = wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype;
3888 *pval = wlc->bandlocked ? wlc->band->bandtype : WLC_BAND_AUTO;
3891 case WLC_GET_PHYLIST:
3893 unsigned char *cp = arg;
3895 bcmerror = BCME_BUFTOOSHORT;
3899 if (WLCISNPHY(wlc->band)) {
3901 } else if (WLCISLCNPHY(wlc->band)) {
3903 } else if (WLCISSSLPNPHY(wlc->band)) {
3910 case WLC_GET_SHORTSLOT:
3911 *pval = wlc->shortslot;
3914 case WLC_GET_SHORTSLOT_OVERRIDE:
3915 *pval = wlc->shortslot_override;
3918 case WLC_SET_SHORTSLOT_OVERRIDE:
3919 if ((val != WLC_SHORTSLOT_AUTO) &&
3920 (val != WLC_SHORTSLOT_OFF) && (val != WLC_SHORTSLOT_ON)) {
3921 bcmerror = BCME_RANGE;
3925 wlc->shortslot_override = (s8) val;
3927 /* shortslot is an 11g feature, so no more work if we are
3928 * currently on the 5G band
3930 if (BAND_5G(wlc->band->bandtype))
3933 if (wlc->pub->up && wlc->pub->associated) {
3934 /* let watchdog or beacon processing update shortslot */
3935 } else if (wlc->pub->up) {
3936 /* unassociated shortslot is off */
3937 wlc_switch_shortslot(wlc, false);
3939 /* driver is down, so just update the wlc_info value */
3940 if (wlc->shortslot_override == WLC_SHORTSLOT_AUTO) {
3941 wlc->shortslot = false;
3944 (wlc->shortslot_override ==
3951 case WLC_GET_LEGACY_ERP:
3952 *pval = wlc->include_legacy_erp;
3955 case WLC_SET_LEGACY_ERP:
3956 if (wlc->include_legacy_erp == bool_val)
3959 wlc->include_legacy_erp = bool_val;
3961 if (AP_ENAB(wlc->pub) && wlc->clk) {
3962 wlc_update_beacon(wlc);
3963 wlc_update_probe_resp(wlc, true);
3968 if (wlc->band->bandtype == WLC_BAND_2G)
3969 *pval = wlc->band->gmode;
3970 else if (NBANDS(wlc) > 1)
3971 *pval = wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode;
3975 if (!wlc->pub->associated)
3976 bcmerror = wlc_set_gmode(wlc, (u8) val, true);
3978 bcmerror = BCME_ASSOCIATED;
3983 case WLC_GET_GMODE_PROTECTION:
3984 *pval = wlc->protection->_g;
3987 case WLC_GET_PROTECTION_CONTROL:
3988 *pval = wlc->protection->overlap;
3991 case WLC_SET_PROTECTION_CONTROL:
3992 if ((val != WLC_PROTECTION_CTL_OFF) &&
3993 (val != WLC_PROTECTION_CTL_LOCAL) &&
3994 (val != WLC_PROTECTION_CTL_OVERLAP)) {
3995 bcmerror = BCME_RANGE;
3999 wlc_protection_upd(wlc, WLC_PROT_OVERLAP, (s8) val);
4001 /* Current g_protection will sync up to the specified control alg in watchdog
4002 * if the driver is up and associated.
4003 * If the driver is down or not associated, the control setting has no effect.
4007 case WLC_GET_GMODE_PROTECTION_OVERRIDE:
4008 *pval = wlc->protection->g_override;
4011 case WLC_SET_GMODE_PROTECTION_OVERRIDE:
4012 if ((val != WLC_PROTECTION_AUTO) &&
4013 (val != WLC_PROTECTION_OFF) && (val != WLC_PROTECTION_ON)) {
4014 bcmerror = BCME_RANGE;
4018 wlc_protection_upd(wlc, WLC_PROT_G_OVR, (s8) val);
4022 case WLC_SET_SUP_RATESET_OVERRIDE:{
4023 wlc_rateset_t rs, new;
4026 if (len < (int)sizeof(wlc_rateset_t)) {
4027 bcmerror = BCME_BUFTOOSHORT;
4030 memcpy(&rs, arg, sizeof(wlc_rateset_t));
4032 /* check for bad count value */
4033 if (rs.count > WLC_NUMRATES) {
4034 bcmerror = BCME_BADRATESET; /* invalid rateset */
4038 /* this command is only appropriate for gmode operation */
4039 if (!(wlc->band->gmode ||
4041 && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) {
4042 bcmerror = BCME_BADBAND; /* gmode only command when not in gmode */
4046 /* check for an empty rateset to clear the override */
4047 if (rs.count == 0) {
4048 memset(&wlc->sup_rates_override, 0,
4049 sizeof(wlc_rateset_t));
4053 /* validate rateset by comparing pre and post sorted against 11g hw rates */
4054 wlc_rateset_filter(&rs, &new, false, WLC_RATES_CCK_OFDM,
4055 RATE_MASK, BSS_N_ENAB(wlc, bsscfg));
4056 wlc_rate_hwrs_filter_sort_validate(&new,
4059 wlc->stf->txstreams);
4060 if (rs.count != new.count) {
4061 bcmerror = BCME_BADRATESET; /* invalid rateset */
4065 /* apply new rateset to the override */
4066 memcpy(&wlc->sup_rates_override, &new,
4067 sizeof(wlc_rateset_t));
4069 /* update bcn and probe resp if needed */
4070 if (wlc->pub->up && AP_ENAB(wlc->pub)
4071 && wlc->pub->associated) {
4072 wlc_update_beacon(wlc);
4073 wlc_update_probe_resp(wlc, true);
4078 case WLC_GET_SUP_RATESET_OVERRIDE:
4079 /* this command is only appropriate for gmode operation */
4080 if (!(wlc->band->gmode ||
4082 && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) {
4083 bcmerror = BCME_BADBAND; /* gmode only command when not in gmode */
4086 if (len < (int)sizeof(wlc_rateset_t)) {
4087 bcmerror = BCME_BUFTOOSHORT;
4090 memcpy(arg, &wlc->sup_rates_override, sizeof(wlc_rateset_t));
4094 case WLC_GET_PRB_RESP_TIMEOUT:
4095 *pval = wlc->prb_resp_timeout;
4098 case WLC_SET_PRB_RESP_TIMEOUT:
4100 bcmerror = BCME_NOTDOWN;
4103 if (val < 0 || val >= 0xFFFF) {
4104 bcmerror = BCME_RANGE; /* bad value */
4107 wlc->prb_resp_timeout = (u16) val;
4110 case WLC_GET_KEY_PRIMARY:{
4113 /* treat the 'val' parm as the key id */
4114 key = WSEC_BSS_DEFAULT_KEY(bsscfg);
4116 *pval = key->id == val ? true : false;
4118 bcmerror = BCME_BADKEYIDX;
4123 case WLC_SET_KEY_PRIMARY:{
4124 wsec_key_t *key, *old_key;
4126 bcmerror = BCME_BADKEYIDX;
4128 /* treat the 'val' parm as the key id */
4129 for (i = 0; i < WSEC_MAX_DEFAULT_KEYS; i++) {
4130 key = bsscfg->bss_def_keys[i];
4131 if (key != NULL && key->id == val) {
4132 old_key = WSEC_BSS_DEFAULT_KEY(bsscfg);
4133 if (old_key != NULL)
4136 key->flags |= WSEC_PRIMARY_KEY;
4137 bsscfg->wsec_index = i;
4153 /* validate the name value */
4155 for (i = 0; i < (uint) len && *name != '\0';
4159 if (i == (uint) len) {
4160 bcmerror = BCME_BUFTOOSHORT;
4163 i++; /* include the null in the string length */
4165 if (cmd == WLC_GET_VAR) {
4167 wlc_iovar_op(wlc, arg,
4168 (void *)((s8 *) arg + i),
4169 len - i, arg, len, IOV_GET,
4173 wlc_iovar_op(wlc, arg, NULL, 0,
4174 (void *)((s8 *) arg + i),
4175 len - i, IOV_SET, wlcif);
4180 case WLC_SET_WSEC_PMK:
4181 bcmerror = BCME_UNSUPPORTED;
4185 case WLC_CURRENT_PWR:
4187 bcmerror = BCME_NOTUP;
4189 bcmerror = wlc_get_current_txpwr(wlc, arg, len);
4194 WL_ERROR("%s: WLC_LAST\n", __func__);
4199 if (VALID_BCMERROR(bcmerror))
4200 wlc->pub->bcmerror = bcmerror;
4206 /* BMAC_NOTE: for HIGH_ONLY driver, this seems being called after RPC bus failed */
4207 /* In hw_off condition, IOCTLs that reach here are deemed safe but taclear would
4208 * certainly result in getting -1 for register reads. So skip ta_clear altogether
4210 if (!(wlc->pub->hw_off))
4211 ASSERT(wlc_bmac_taclear(wlc->hw, ta_ok) || !ta_ok);
4217 /* consolidated register access ioctl error checking */
4218 int wlc_iocregchk(struct wlc_info *wlc, uint band)
4220 /* if band is specified, it must be the current band */
4221 if ((band != WLC_BAND_AUTO) && (band != (uint) wlc->band->bandtype))
4222 return BCME_BADBAND;
4224 /* if multiband and band is not specified, band must be locked */
4225 if ((band == WLC_BAND_AUTO) && IS_MBAND_UNLOCKED(wlc))
4226 return BCME_NOTBANDLOCKED;
4228 /* must have core clocks */
4234 #endif /* defined(BCMDBG) */
4237 /* For some ioctls, make sure that the pi pointer matches the current phy */
4238 int wlc_iocpichk(struct wlc_info *wlc, uint phytype)
4240 if (wlc->band->phytype != phytype)
4241 return BCME_BADBAND;
4246 /* Look up the given var name in the given table */
4247 static const bcm_iovar_t *wlc_iovar_lookup(const bcm_iovar_t *table,
4250 const bcm_iovar_t *vi;
4251 const char *lookup_name;
4253 /* skip any ':' delimited option prefixes */
4254 lookup_name = strrchr(name, ':');
4255 if (lookup_name != NULL)
4260 ASSERT(table != NULL);
4262 for (vi = table; vi->name; vi++) {
4263 if (!strcmp(vi->name, lookup_name))
4266 /* ran to end of table */
4268 return NULL; /* var name not found */
4271 /* simplified integer get interface for common WLC_GET_VAR ioctl handler */
4272 int wlc_iovar_getint(struct wlc_info *wlc, const char *name, int *arg)
4274 return wlc_iovar_op(wlc, name, NULL, 0, arg, sizeof(s32), IOV_GET,
4278 /* simplified integer set interface for common WLC_SET_VAR ioctl handler */
4279 int wlc_iovar_setint(struct wlc_info *wlc, const char *name, int arg)
4281 return wlc_iovar_op(wlc, name, NULL, 0, (void *)&arg, sizeof(arg),
4285 /* simplified s8 get interface for common WLC_GET_VAR ioctl handler */
4286 int wlc_iovar_gets8(struct wlc_info *wlc, const char *name, s8 *arg)
4292 wlc_iovar_op(wlc, name, NULL, 0, &iovar_int, sizeof(iovar_int),
4295 *arg = (s8) iovar_int;
4301 * register iovar table, watchdog and down handlers.
4302 * calling function must keep 'iovars' until wlc_module_unregister is called.
4303 * 'iovar' must have the last entry's name field being NULL as terminator.
4305 int wlc_module_register(struct wlc_pub *pub, const bcm_iovar_t *iovars,
4306 const char *name, void *hdl, iovar_fn_t i_fn,
4307 watchdog_fn_t w_fn, down_fn_t d_fn)
4309 struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
4312 ASSERT(name != NULL);
4313 ASSERT(i_fn != NULL || w_fn != NULL || d_fn != NULL);
4315 /* find an empty entry and just add, no duplication check! */
4316 for (i = 0; i < WLC_MAXMODULES; i++) {
4317 if (wlc->modulecb[i].name[0] == '\0') {
4318 strncpy(wlc->modulecb[i].name, name,
4319 sizeof(wlc->modulecb[i].name) - 1);
4320 wlc->modulecb[i].iovars = iovars;
4321 wlc->modulecb[i].hdl = hdl;
4322 wlc->modulecb[i].iovar_fn = i_fn;
4323 wlc->modulecb[i].watchdog_fn = w_fn;
4324 wlc->modulecb[i].down_fn = d_fn;
4329 /* it is time to increase the capacity */
4330 ASSERT(i < WLC_MAXMODULES);
4331 return BCME_NORESOURCE;
4334 /* unregister module callbacks */
4335 int wlc_module_unregister(struct wlc_pub *pub, const char *name, void *hdl)
4337 struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
4341 return BCME_NOTFOUND;
4343 ASSERT(name != NULL);
4345 for (i = 0; i < WLC_MAXMODULES; i++) {
4346 if (!strcmp(wlc->modulecb[i].name, name) &&
4347 (wlc->modulecb[i].hdl == hdl)) {
4348 memset(&wlc->modulecb[i], 0, sizeof(struct modulecb));
4353 /* table not found! */
4354 return BCME_NOTFOUND;
4357 /* Write WME tunable parameters for retransmit/max rate from wlc struct to ucode */
4358 static void wlc_wme_retries_write(struct wlc_info *wlc)
4362 /* Need clock to do this */
4366 for (ac = 0; ac < AC_COUNT; ac++) {
4367 wlc_write_shm(wlc, M_AC_TXLMT_ADDR(ac), wlc->wme_retries[ac]);
4371 /* Get or set an iovar. The params/p_len pair specifies any additional
4372 * qualifying parameters (e.g. an "element index") for a get, while the
4373 * arg/len pair is the buffer for the value to be set or retrieved.
4374 * Operation (get/set) is specified by the last argument.
4375 * interface context provided by wlcif
4377 * All pointers may point into the same buffer.
4380 wlc_iovar_op(struct wlc_info *wlc, const char *name,
4381 void *params, int p_len, void *arg, int len,
4382 bool set, struct wlc_if *wlcif)
4386 const bcm_iovar_t *vi = NULL;
4390 ASSERT(name != NULL);
4394 /* Get MUST have return space */
4395 ASSERT(set || (arg && len));
4397 ASSERT(!(wlc->pub->hw_off && wlc->pub->up));
4399 /* Set does NOT take qualifiers */
4400 ASSERT(!set || (!params && !p_len));
4402 if (!set && (len == sizeof(int)) &&
4403 !(IS_ALIGNED((unsigned long)(arg), (uint) sizeof(int)))) {
4404 WL_ERROR("wl%d: %s unaligned get ptr for %s\n",
4405 wlc->pub->unit, __func__, name);
4409 /* find the given iovar name */
4410 for (i = 0; i < WLC_MAXMODULES; i++) {
4411 if (!wlc->modulecb[i].iovars)
4413 vi = wlc_iovar_lookup(wlc->modulecb[i].iovars, name);
4417 /* iovar name not found */
4418 if (i >= WLC_MAXMODULES) {
4419 err = BCME_UNSUPPORTED;
4423 /* set up 'params' pointer in case this is a set command so that
4424 * the convenience int and bool code can be common to set and get
4426 if (params == NULL) {
4431 if (vi->type == IOVT_VOID)
4433 else if (vi->type == IOVT_BUFFER)
4436 /* all other types are integer sized */
4437 val_size = sizeof(int);
4439 actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
4441 /* Do the actual parameter implementation */
4442 err = wlc->modulecb[i].iovar_fn(wlc->modulecb[i].hdl, vi, actionid,
4443 name, params, p_len, arg, len, val_size,
4451 wlc_iovar_check(struct wlc_pub *pub, const bcm_iovar_t *vi, void *arg, int len,
4454 struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
4458 /* check generic condition flags */
4460 if (((vi->flags & IOVF_SET_DOWN) && wlc->pub->up) ||
4461 ((vi->flags & IOVF_SET_UP) && !wlc->pub->up)) {
4462 err = (wlc->pub->up ? BCME_NOTDOWN : BCME_NOTUP);
4463 } else if ((vi->flags & IOVF_SET_BAND)
4464 && IS_MBAND_UNLOCKED(wlc)) {
4465 err = BCME_NOTBANDLOCKED;
4466 } else if ((vi->flags & IOVF_SET_CLK) && !wlc->clk) {
4470 if (((vi->flags & IOVF_GET_DOWN) && wlc->pub->up) ||
4471 ((vi->flags & IOVF_GET_UP) && !wlc->pub->up)) {
4472 err = (wlc->pub->up ? BCME_NOTDOWN : BCME_NOTUP);
4473 } else if ((vi->flags & IOVF_GET_BAND)
4474 && IS_MBAND_UNLOCKED(wlc)) {
4475 err = BCME_NOTBANDLOCKED;
4476 } else if ((vi->flags & IOVF_GET_CLK) && !wlc->clk) {
4484 /* length check on io buf */
4485 err = bcm_iovar_lencheck(vi, arg, len, set);
4489 /* On set, check value ranges for integer types */
4499 memcpy(&int_val, arg, sizeof(int));
4500 err = wlc_iovar_rangecheck(wlc, int_val, vi);
4508 /* handler for iovar table wlc_iovars */
4510 * IMPLEMENTATION NOTE: In order to avoid checking for get/set in each
4511 * iovar case, the switch statement maps the iovar id into separate get
4512 * and set values. If you add a new iovar to the switch you MUST use
4513 * IOV_GVAL and/or IOV_SVAL in the case labels to avoid conflict with
4515 * Please use params for additional qualifying parameters.
4518 wlc_doiovar(void *hdl, const bcm_iovar_t *vi, u32 actionid,
4519 const char *name, void *params, uint p_len, void *arg, int len,
4520 int val_size, struct wlc_if *wlcif)
4522 struct wlc_info *wlc = hdl;
4523 wlc_bsscfg_t *bsscfg;
4530 wlc_bss_info_t *current_bss;
4532 WL_TRACE("wl%d: %s\n", wlc->pub->unit, __func__);
4537 err = wlc_iovar_check(wlc->pub, vi, arg, len, IOV_ISSET(actionid));
4541 /* convenience int and bool vals for first 8 bytes of buffer */
4542 if (p_len >= (int)sizeof(int_val))
4543 memcpy(&int_val, params, sizeof(int_val));
4545 if (p_len >= (int)sizeof(int_val) * 2)
4547 (void *)((unsigned long)params + sizeof(int_val)),
4550 /* convenience int ptr for 4-byte gets (requires int aligned arg) */
4551 ret_int_ptr = (s32 *) arg;
4553 bool_val = (int_val != 0) ? true : false;
4554 bool_val2 = (int_val2 != 0) ? true : false;
4556 WL_TRACE("wl%d: %s: id %d\n",
4557 wlc->pub->unit, __func__, IOV_ID(actionid));
4558 /* Do the actual parameter implementation */
4560 case IOV_SVAL(IOV_RTSTHRESH):
4561 wlc->RTSThresh = int_val;
4564 case IOV_GVAL(IOV_QTXPOWER):{
4568 err = wlc_phy_txpower_get(wlc->band->pi, &qdbm,
4573 /* Return qdbm units */
4575 qdbm | (override ? WL_TXPWR_OVERRIDE : 0);
4579 /* As long as override is false, this only sets the *user* targets.
4580 User can twiddle this all he wants with no harm.
4581 wlc_phy_txpower_set() explicitly sets override to false if
4582 not internal or test.
4584 case IOV_SVAL(IOV_QTXPOWER):{
4588 /* Remove override bit and clip to max qdbm value */
4589 qdbm = (u8)min_t(u32, (int_val & ~WL_TXPWR_OVERRIDE), 0xff);
4590 /* Extract override setting */
4591 override = (int_val & WL_TXPWR_OVERRIDE) ? true : false;
4593 wlc_phy_txpower_set(wlc->band->pi, qdbm, override);
4597 case IOV_GVAL(IOV_MPC):
4598 *ret_int_ptr = (s32) wlc->mpc;
4601 case IOV_SVAL(IOV_MPC):
4602 wlc->mpc = bool_val;
4603 wlc_radio_mpc_upd(wlc);
4607 case IOV_GVAL(IOV_BCN_LI_BCN):
4608 *ret_int_ptr = wlc->bcn_li_bcn;
4611 case IOV_SVAL(IOV_BCN_LI_BCN):
4612 wlc->bcn_li_bcn = (u8) int_val;
4614 wlc_bcn_li_upd(wlc);
4618 WL_ERROR("wl%d: %s: unsupported\n", wlc->pub->unit, __func__);
4619 err = BCME_UNSUPPORTED;
4623 goto exit; /* avoid unused label warning */
4630 wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val, const bcm_iovar_t *vi)
4636 /* Only ranged integers are checked */
4639 max_val |= 0x7fffffff;
4642 max_val |= 0x00007fff;
4645 max_val |= 0x0000007f;
4647 if (vi->flags & IOVF_NTRL)
4649 else if (vi->flags & IOVF_WHL)
4651 /* Signed values are checked against max_val and min_val */
4652 if ((s32) val < (s32) min_val
4653 || (s32) val > (s32) max_val)
4658 max_val |= 0xffffffff;
4661 max_val |= 0x0000ffff;
4664 max_val |= 0x000000ff;
4665 if (vi->flags & IOVF_NTRL)
4667 if ((val < min_val) || (val > max_val))
4676 static const char *supr_reason[] = {
4677 "None", "PMQ Entry", "Flush request",
4678 "Previous frag failure", "Channel mismatch",
4679 "Lifetime Expiry", "Underflow"
4682 static void wlc_print_txs_status(u16 s)
4684 printk(KERN_DEBUG "[15:12] %d frame attempts\n",
4685 (s & TX_STATUS_FRM_RTX_MASK) >> TX_STATUS_FRM_RTX_SHIFT);
4686 printk(KERN_DEBUG " [11:8] %d rts attempts\n",
4687 (s & TX_STATUS_RTS_RTX_MASK) >> TX_STATUS_RTS_RTX_SHIFT);
4688 printk(KERN_DEBUG " [7] %d PM mode indicated\n",
4689 ((s & TX_STATUS_PMINDCTD) ? 1 : 0));
4690 printk(KERN_DEBUG " [6] %d intermediate status\n",
4691 ((s & TX_STATUS_INTERMEDIATE) ? 1 : 0));
4692 printk(KERN_DEBUG " [5] %d AMPDU\n",
4693 (s & TX_STATUS_AMPDU) ? 1 : 0);
4694 printk(KERN_DEBUG " [4:2] %d Frame Suppressed Reason (%s)\n",
4695 ((s & TX_STATUS_SUPR_MASK) >> TX_STATUS_SUPR_SHIFT),
4696 supr_reason[(s & TX_STATUS_SUPR_MASK) >> TX_STATUS_SUPR_SHIFT]);
4697 printk(KERN_DEBUG " [1] %d acked\n",
4698 ((s & TX_STATUS_ACK_RCV) ? 1 : 0));
4702 void wlc_print_txstatus(tx_status_t *txs)
4705 u16 s = txs->status;
4706 u16 ackphyrxsh = txs->ackphyrxsh;
4708 printk(KERN_DEBUG "\ntxpkt (MPDU) Complete\n");
4710 printk(KERN_DEBUG "FrameID: %04x ", txs->frameid);
4711 printk(KERN_DEBUG "TxStatus: %04x", s);
4712 printk(KERN_DEBUG "\n");
4714 wlc_print_txs_status(s);
4716 printk(KERN_DEBUG "LastTxTime: %04x ", txs->lasttxtime);
4717 printk(KERN_DEBUG "Seq: %04x ", txs->sequence);
4718 printk(KERN_DEBUG "PHYTxStatus: %04x ", txs->phyerr);
4719 printk(KERN_DEBUG "RxAckRSSI: %04x ",
4720 (ackphyrxsh & PRXS1_JSSI_MASK) >> PRXS1_JSSI_SHIFT);
4721 printk(KERN_DEBUG "RxAckSQ: %04x",
4722 (ackphyrxsh & PRXS1_SQ_MASK) >> PRXS1_SQ_SHIFT);
4723 printk(KERN_DEBUG "\n");
4724 #endif /* defined(BCMDBG) */
4728 wlc_ctrupd_cache(u16 cur_stat, u16 *macstat_snapshot, u32 *macstat)
4733 v = le16_to_cpu(cur_stat);
4734 delta = (u16)(v - *macstat_snapshot);
4738 *macstat_snapshot = v;
4742 #define MACSTATUPD(name) \
4743 wlc_ctrupd_cache(macstats.name, &wlc->core->macstat_snapshot->name, &wlc->pub->_cnt->name)
4745 void wlc_statsupd(struct wlc_info *wlc)
4755 /* if driver down, make no sense to update stats */
4760 /* save last rx fifo 0 overflow count */
4761 rxf0ovfl = wlc->core->macstat_snapshot->rxf0ovfl;
4763 /* save last tx fifo underflow count */
4764 for (i = 0; i < NFIFO; i++)
4765 txfunfl[i] = wlc->core->macstat_snapshot->txfunfl[i];
4768 /* Read mac stats from contiguous shared memory */
4769 wlc_bmac_copyfrom_shm(wlc->hw, M_UCODE_MACSTAT,
4770 &macstats, sizeof(macstat_t));
4772 /* update mac stats */
4773 MACSTATUPD(txallfrm);
4774 MACSTATUPD(txrtsfrm);
4775 MACSTATUPD(txctsfrm);
4776 MACSTATUPD(txackfrm);
4777 MACSTATUPD(txdnlfrm);
4778 MACSTATUPD(txbcnfrm);
4779 for (i = 0; i < NFIFO; i++)
4780 MACSTATUPD(txfunfl[i]);
4781 MACSTATUPD(txtplunfl);
4782 MACSTATUPD(txphyerr);
4783 MACSTATUPD(rxfrmtoolong);
4784 MACSTATUPD(rxfrmtooshrt);
4785 MACSTATUPD(rxinvmachdr);
4786 MACSTATUPD(rxbadfcs);
4787 MACSTATUPD(rxbadplcp);
4788 MACSTATUPD(rxcrsglitch);
4790 MACSTATUPD(rxdfrmucastmbss);
4791 MACSTATUPD(rxmfrmucastmbss);
4792 MACSTATUPD(rxcfrmucast);
4793 MACSTATUPD(rxrtsucast);
4794 MACSTATUPD(rxctsucast);
4795 MACSTATUPD(rxackucast);
4796 MACSTATUPD(rxdfrmocast);
4797 MACSTATUPD(rxmfrmocast);
4798 MACSTATUPD(rxcfrmocast);
4799 MACSTATUPD(rxrtsocast);
4800 MACSTATUPD(rxctsocast);
4801 MACSTATUPD(rxdfrmmcast);
4802 MACSTATUPD(rxmfrmmcast);
4803 MACSTATUPD(rxcfrmmcast);
4804 MACSTATUPD(rxbeaconmbss);
4805 MACSTATUPD(rxdfrmucastobss);
4806 MACSTATUPD(rxbeaconobss);
4807 MACSTATUPD(rxrsptmout);
4808 MACSTATUPD(bcntxcancl);
4809 MACSTATUPD(rxf0ovfl);
4810 MACSTATUPD(rxf1ovfl);
4811 MACSTATUPD(rxf2ovfl);
4812 MACSTATUPD(txsfovfl);
4813 MACSTATUPD(pmqovfl);
4814 MACSTATUPD(rxcgprqfrm);
4815 MACSTATUPD(rxcgprsqovfl);
4816 MACSTATUPD(txcgprsfail);
4817 MACSTATUPD(txcgprssuc);
4818 MACSTATUPD(prs_timeout);
4820 MACSTATUPD(frmscons);
4822 MACSTATUPD(txglitch_nack);
4823 MACSTATUPD(txburst);
4824 MACSTATUPD(phywatchdog);
4825 MACSTATUPD(pktengrxducast);
4826 MACSTATUPD(pktengrxdmcast);
4829 /* check for rx fifo 0 overflow */
4830 delta = (u16) (wlc->core->macstat_snapshot->rxf0ovfl - rxf0ovfl);
4832 WL_ERROR("wl%d: %u rx fifo 0 overflows!\n",
4833 wlc->pub->unit, delta);
4835 /* check for tx fifo underflows */
4836 for (i = 0; i < NFIFO; i++) {
4838 (u16) (wlc->core->macstat_snapshot->txfunfl[i] -
4841 WL_ERROR("wl%d: %u tx fifo %d underflows!\n",
4842 wlc->pub->unit, delta, i);
4846 /* dot11 counter update */
4848 WLCNTSET(wlc->pub->_cnt->txrts,
4849 (wlc->pub->_cnt->rxctsucast -
4850 wlc->pub->_cnt->d11cnt_txrts_off));
4851 WLCNTSET(wlc->pub->_cnt->rxcrc,
4852 (wlc->pub->_cnt->rxbadfcs - wlc->pub->_cnt->d11cnt_rxcrc_off));
4853 WLCNTSET(wlc->pub->_cnt->txnocts,
4854 ((wlc->pub->_cnt->txrtsfrm - wlc->pub->_cnt->rxctsucast) -
4855 wlc->pub->_cnt->d11cnt_txnocts_off));
4857 /* merge counters from dma module */
4858 for (i = 0; i < NFIFO; i++) {
4859 if (wlc->hw->di[i]) {
4860 WLCNTADD(wlc->pub->_cnt->txnobuf,
4861 (wlc->hw->di[i])->txnobuf);
4862 WLCNTADD(wlc->pub->_cnt->rxnobuf,
4863 (wlc->hw->di[i])->rxnobuf);
4864 WLCNTADD(wlc->pub->_cnt->rxgiant,
4865 (wlc->hw->di[i])->rxgiants);
4866 dma_counterreset(wlc->hw->di[i]);
4871 * Aggregate transmit and receive errors that probably resulted
4872 * in the loss of a frame are computed on the fly.
4874 WLCNTSET(wlc->pub->_cnt->txerror,
4875 wlc->pub->_cnt->txnobuf + wlc->pub->_cnt->txnoassoc +
4876 wlc->pub->_cnt->txuflo + wlc->pub->_cnt->txrunt +
4877 wlc->pub->_cnt->dmade + wlc->pub->_cnt->dmada +
4878 wlc->pub->_cnt->dmape);
4879 WLCNTSET(wlc->pub->_cnt->rxerror,
4880 wlc->pub->_cnt->rxoflo + wlc->pub->_cnt->rxnobuf +
4881 wlc->pub->_cnt->rxfragerr + wlc->pub->_cnt->rxrunt +
4882 wlc->pub->_cnt->rxgiant + wlc->pub->_cnt->rxnoscb +
4883 wlc->pub->_cnt->rxbadsrcmac);
4884 for (i = 0; i < NFIFO; i++)
4885 wlc->pub->_cnt->rxerror += wlc->pub->_cnt->rxuflo[i];
4888 bool wlc_chipmatch(u16 vendor, u16 device)
4890 if (vendor != VENDOR_BROADCOM) {
4891 WL_ERROR("wlc_chipmatch: unknown vendor id %04x\n", vendor);
4895 if ((device == BCM43224_D11N_ID) || (device == BCM43225_D11N2G_ID))
4898 if (device == BCM4313_D11N2G_ID)
4900 if ((device == BCM43236_D11N_ID) || (device == BCM43236_D11N2G_ID))
4903 WL_ERROR("wlc_chipmatch: unknown device id %04x\n", device);
4908 void wlc_print_txdesc(d11txh_t *txh)
4910 u16 mtcl = le16_to_cpu(txh->MacTxControlLow);
4911 u16 mtch = le16_to_cpu(txh->MacTxControlHigh);
4912 u16 mfc = le16_to_cpu(txh->MacFrameControl);
4913 u16 tfest = le16_to_cpu(txh->TxFesTimeNormal);
4914 u16 ptcw = le16_to_cpu(txh->PhyTxControlWord);
4915 u16 ptcw_1 = le16_to_cpu(txh->PhyTxControlWord_1);
4916 u16 ptcw_1_Fbr = le16_to_cpu(txh->PhyTxControlWord_1_Fbr);
4917 u16 ptcw_1_Rts = le16_to_cpu(txh->PhyTxControlWord_1_Rts);
4918 u16 ptcw_1_FbrRts = le16_to_cpu(txh->PhyTxControlWord_1_FbrRts);
4919 u16 mainrates = le16_to_cpu(txh->MainRates);
4920 u16 xtraft = le16_to_cpu(txh->XtraFrameTypes);
4922 u8 *ra = txh->TxFrameRA;
4923 u16 tfestfb = le16_to_cpu(txh->TxFesTimeFallback);
4924 u8 *rtspfb = txh->RTSPLCPFallback;
4925 u16 rtsdfb = le16_to_cpu(txh->RTSDurFallback);
4926 u8 *fragpfb = txh->FragPLCPFallback;
4927 u16 fragdfb = le16_to_cpu(txh->FragDurFallback);
4928 u16 mmodelen = le16_to_cpu(txh->MModeLen);
4929 u16 mmodefbrlen = le16_to_cpu(txh->MModeFbrLen);
4930 u16 tfid = le16_to_cpu(txh->TxFrameID);
4931 u16 txs = le16_to_cpu(txh->TxStatus);
4932 u16 mnmpdu = le16_to_cpu(txh->MaxNMpdus);
4933 u16 mabyte = le16_to_cpu(txh->MaxABytes_MRT);
4934 u16 mabyte_f = le16_to_cpu(txh->MaxABytes_FBR);
4935 u16 mmbyte = le16_to_cpu(txh->MinMBytes);
4937 u8 *rtsph = txh->RTSPhyHeader;
4938 struct ieee80211_rts rts = txh->rts_frame;
4941 /* add plcp header along with txh descriptor */
4942 prhex("Raw TxDesc + plcp header", (unsigned char *) txh, sizeof(d11txh_t) + 48);
4944 printk(KERN_DEBUG "TxCtlLow: %04x ", mtcl);
4945 printk(KERN_DEBUG "TxCtlHigh: %04x ", mtch);
4946 printk(KERN_DEBUG "FC: %04x ", mfc);
4947 printk(KERN_DEBUG "FES Time: %04x\n", tfest);
4948 printk(KERN_DEBUG "PhyCtl: %04x%s ", ptcw,
4949 (ptcw & PHY_TXC_SHORT_HDR) ? " short" : "");
4950 printk(KERN_DEBUG "PhyCtl_1: %04x ", ptcw_1);
4951 printk(KERN_DEBUG "PhyCtl_1_Fbr: %04x\n", ptcw_1_Fbr);
4952 printk(KERN_DEBUG "PhyCtl_1_Rts: %04x ", ptcw_1_Rts);
4953 printk(KERN_DEBUG "PhyCtl_1_Fbr_Rts: %04x\n", ptcw_1_FbrRts);
4954 printk(KERN_DEBUG "MainRates: %04x ", mainrates);
4955 printk(KERN_DEBUG "XtraFrameTypes: %04x ", xtraft);
4956 printk(KERN_DEBUG "\n");
4958 bcm_format_hex(hexbuf, iv, sizeof(txh->IV));
4959 printk(KERN_DEBUG "SecIV: %s\n", hexbuf);
4960 bcm_format_hex(hexbuf, ra, sizeof(txh->TxFrameRA));
4961 printk(KERN_DEBUG "RA: %s\n", hexbuf);
4963 printk(KERN_DEBUG "Fb FES Time: %04x ", tfestfb);
4964 bcm_format_hex(hexbuf, rtspfb, sizeof(txh->RTSPLCPFallback));
4965 printk(KERN_DEBUG "RTS PLCP: %s ", hexbuf);
4966 printk(KERN_DEBUG "RTS DUR: %04x ", rtsdfb);
4967 bcm_format_hex(hexbuf, fragpfb, sizeof(txh->FragPLCPFallback));
4968 printk(KERN_DEBUG "PLCP: %s ", hexbuf);
4969 printk(KERN_DEBUG "DUR: %04x", fragdfb);
4970 printk(KERN_DEBUG "\n");
4972 printk(KERN_DEBUG "MModeLen: %04x ", mmodelen);
4973 printk(KERN_DEBUG "MModeFbrLen: %04x\n", mmodefbrlen);
4975 printk(KERN_DEBUG "FrameID: %04x\n", tfid);
4976 printk(KERN_DEBUG "TxStatus: %04x\n", txs);
4978 printk(KERN_DEBUG "MaxNumMpdu: %04x\n", mnmpdu);
4979 printk(KERN_DEBUG "MaxAggbyte: %04x\n", mabyte);
4980 printk(KERN_DEBUG "MaxAggbyte_fb: %04x\n", mabyte_f);
4981 printk(KERN_DEBUG "MinByte: %04x\n", mmbyte);
4983 bcm_format_hex(hexbuf, rtsph, sizeof(txh->RTSPhyHeader));
4984 printk(KERN_DEBUG "RTS PLCP: %s ", hexbuf);
4985 bcm_format_hex(hexbuf, (u8 *) &rts, sizeof(txh->rts_frame));
4986 printk(KERN_DEBUG "RTS Frame: %s", hexbuf);
4987 printk(KERN_DEBUG "\n");
4989 #endif /* defined(BCMDBG) */
4992 void wlc_print_rxh(d11rxhdr_t *rxh)
4994 u16 len = rxh->RxFrameSize;
4995 u16 phystatus_0 = rxh->PhyRxStatus_0;
4996 u16 phystatus_1 = rxh->PhyRxStatus_1;
4997 u16 phystatus_2 = rxh->PhyRxStatus_2;
4998 u16 phystatus_3 = rxh->PhyRxStatus_3;
4999 u16 macstatus1 = rxh->RxStatus1;
5000 u16 macstatus2 = rxh->RxStatus2;
5003 static const bcm_bit_desc_t macstat_flags[] = {
5004 {RXS_FCSERR, "FCSErr"},
5005 {RXS_RESPFRAMETX, "Reply"},
5006 {RXS_PBPRES, "PADDING"},
5007 {RXS_DECATMPT, "DeCr"},
5008 {RXS_DECERR, "DeCrErr"},
5009 {RXS_BCNSENT, "Bcn"},
5013 prhex("Raw RxDesc", (unsigned char *) rxh, sizeof(d11rxhdr_t));
5015 bcm_format_flags(macstat_flags, macstatus1, flagstr, 64);
5017 snprintf(lenbuf, sizeof(lenbuf), "0x%x", len);
5019 printk(KERN_DEBUG "RxFrameSize: %6s (%d)%s\n", lenbuf, len,
5020 (rxh->PhyRxStatus_0 & PRXS0_SHORTH) ? " short preamble" : "");
5021 printk(KERN_DEBUG "RxPHYStatus: %04x %04x %04x %04x\n",
5022 phystatus_0, phystatus_1, phystatus_2, phystatus_3);
5023 printk(KERN_DEBUG "RxMACStatus: %x %s\n", macstatus1, flagstr);
5024 printk(KERN_DEBUG "RXMACaggtype: %x\n",
5025 (macstatus2 & RXS_AGGTYPE_MASK));
5026 printk(KERN_DEBUG "RxTSFTime: %04x\n", rxh->RxTSFTime);
5028 #endif /* defined(BCMDBG) */
5031 int wlc_format_ssid(char *buf, const unsigned char ssid[], uint ssid_len)
5035 char *endp = buf + SSID_FMT_BUF_LEN;
5037 if (ssid_len > IEEE80211_MAX_SSID_LEN)
5038 ssid_len = IEEE80211_MAX_SSID_LEN;
5040 for (i = 0; i < ssid_len; i++) {
5045 } else if (isprint((unsigned char) c)) {
5048 p += snprintf(p, (endp - p), "\\x%02X", c);
5054 return (int)(p - buf);
5056 #endif /* defined(BCMDBG) */
5058 static u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate)
5060 return wlc_bmac_rate_shm_offset(wlc->hw, rate);
5063 /* Callback for device removed */
5066 * Attempts to queue a packet onto a multiple-precedence queue,
5067 * if necessary evicting a lower precedence packet from the queue.
5069 * 'prec' is the precedence number that has already been mapped
5070 * from the packet priority.
5072 * Returns true if packet consumed (queued), false if not.
5075 wlc_prec_enq(struct wlc_info *wlc, struct pktq *q, void *pkt, int prec)
5077 return wlc_prec_enq_head(wlc, q, pkt, prec, false);
5081 wlc_prec_enq_head(struct wlc_info *wlc, struct pktq *q, struct sk_buff *pkt,
5082 int prec, bool head)
5085 int eprec = -1; /* precedence to evict from */
5087 /* Determine precedence from which to evict packet, if any */
5088 if (pktq_pfull(q, prec))
5090 else if (pktq_full(q)) {
5091 p = pktq_peek_tail(q, &eprec);
5094 WL_ERROR("%s: Failing: eprec %d > prec %d\n",
5095 __func__, eprec, prec);
5100 /* Evict if needed */
5102 bool discard_oldest;
5104 /* Detect queueing to unconfigured precedence */
5105 ASSERT(!pktq_pempty(q, eprec));
5107 discard_oldest = AC_BITMAP_TST(wlc->wme_dp, eprec);
5109 /* Refuse newer packet unless configured to discard oldest */
5110 if (eprec == prec && !discard_oldest) {
5111 WL_ERROR("%s: No where to go, prec == %d\n",
5116 /* Evict packet according to discard policy */
5117 p = discard_oldest ? pktq_pdeq(q, eprec) : pktq_pdeq_tail(q,
5121 /* Increment wme stats */
5122 if (WME_ENAB(wlc->pub)) {
5123 WLCNTINCR(wlc->pub->_wme_cnt->
5124 tx_failed[WME_PRIO2AC(p->priority)].packets);
5125 WLCNTADD(wlc->pub->_wme_cnt->
5126 tx_failed[WME_PRIO2AC(p->priority)].bytes,
5129 pkt_buf_free_skb(wlc->osh, p, true);
5130 wlc->pub->_cnt->txnobuf++;
5135 p = pktq_penq_head(q, prec, pkt);
5137 p = pktq_penq(q, prec, pkt);
5143 void BCMFASTPATH wlc_txq_enq(void *ctx, struct scb *scb, struct sk_buff *sdu,
5146 struct wlc_info *wlc = (struct wlc_info *) ctx;
5147 struct wlc_txq_info *qi = wlc->active_queue; /* Check me */
5148 struct pktq *q = &qi->q;
5151 prio = sdu->priority;
5153 ASSERT(pktq_max(q) >= wlc->pub->tunables->datahiwat);
5155 if (!wlc_prec_enq(wlc, q, sdu, prec)) {
5156 if (!EDCF_ENAB(wlc->pub)
5157 || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL))
5158 WL_ERROR("wl%d: wlc_txq_enq: txq overflow\n",
5161 /* ASSERT(9 == 8); *//* XXX we might hit this condtion in case packet flooding from mac80211 stack */
5162 pkt_buf_free_skb(wlc->osh, sdu, true);
5163 wlc->pub->_cnt->txnobuf++;
5166 /* Check if flow control needs to be turned on after enqueuing the packet
5167 * Don't turn on flow control if EDCF is enabled. Driver would make the decision on what
5168 * to drop instead of relying on stack to make the right decision
5170 if (!EDCF_ENAB(wlc->pub)
5171 || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) {
5172 if (pktq_len(q) >= wlc->pub->tunables->datahiwat) {
5173 wlc_txflowcontrol(wlc, qi, ON, ALLPRIO);
5175 } else if (wlc->pub->_priofc) {
5176 if (pktq_plen(q, wlc_prio2prec_map[prio]) >=
5177 wlc->pub->tunables->datahiwat) {
5178 wlc_txflowcontrol(wlc, qi, ON, prio);
5184 wlc_sendpkt_mac80211(struct wlc_info *wlc, struct sk_buff *sdu,
5185 struct ieee80211_hw *hw)
5190 struct scb *scb = &global_scb;
5191 struct ieee80211_hdr *d11_header = (struct ieee80211_hdr *)(sdu->data);
5195 /* 802.11 standard requires management traffic to go at highest priority */
5196 prio = ieee80211_is_data(d11_header->frame_control) ? sdu->priority :
5198 fifo = prio2fifo[prio];
5200 ASSERT((uint) skb_headroom(sdu) >= TXOFF);
5201 ASSERT(!(sdu->next));
5202 ASSERT(!(sdu->prev));
5203 ASSERT(fifo < NFIFO);
5207 (wlc_d11hdrs_mac80211(wlc, hw, pkt, scb, 0, 1, fifo, 0, NULL, 0)))
5209 wlc_txq_enq(wlc, scb, pkt, WLC_PRIO_TO_PREC(prio));
5210 wlc_send_q(wlc, wlc->active_queue);
5212 wlc->pub->_cnt->ieee_tx++;
5216 void BCMFASTPATH wlc_send_q(struct wlc_info *wlc, struct wlc_txq_info *qi)
5218 struct sk_buff *pkt[DOT11_MAXNUMFRAGS];
5221 int err = 0, i, count;
5223 struct pktq *q = &qi->q;
5224 struct ieee80211_tx_info *tx_info;
5226 /* only do work for the active queue */
5227 if (qi != wlc->active_queue)
5235 prec_map = wlc->tx_prec_map;
5237 /* Send all the enq'd pkts that we can.
5238 * Dequeue packets with precedence with empty HW fifo only
5240 while (prec_map && (pkt[0] = pktq_mdeq(q, prec_map, &prec))) {
5241 tx_info = IEEE80211_SKB_CB(pkt[0]);
5242 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
5243 err = wlc_sendampdu(wlc->ampdu, qi, pkt, prec);
5246 err = wlc_prep_pdu(wlc, pkt[0], &fifo);
5248 for (i = 0; i < count; i++) {
5249 wlc_txfifo(wlc, fifo, pkt[i], true, 1);
5254 if (err == BCME_BUSY) {
5255 pktq_penq_head(q, prec, pkt[0]);
5256 /* If send failed due to any other reason than a change in
5257 * HW FIFO condition, quit. Otherwise, read the new prec_map!
5259 if (prec_map == wlc->tx_prec_map)
5261 prec_map = wlc->tx_prec_map;
5265 /* Check if flow control needs to be turned off after sending the packet */
5266 if (!EDCF_ENAB(wlc->pub)
5267 || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) {
5268 if (wlc_txflowcontrol_prio_isset(wlc, qi, ALLPRIO)
5269 && (pktq_len(q) < wlc->pub->tunables->datahiwat / 2)) {
5270 wlc_txflowcontrol(wlc, qi, OFF, ALLPRIO);
5272 } else if (wlc->pub->_priofc) {
5274 for (prio = MAXPRIO; prio >= 0; prio--) {
5275 if (wlc_txflowcontrol_prio_isset(wlc, qi, prio) &&
5276 (pktq_plen(q, wlc_prio2prec_map[prio]) <
5277 wlc->pub->tunables->datahiwat / 2)) {
5278 wlc_txflowcontrol(wlc, qi, OFF, prio);
5286 * bcmc_fid_generate:
5287 * Generate frame ID for a BCMC packet. The frag field is not used
5288 * for MC frames so is used as part of the sequence number.
5291 bcmc_fid_generate(struct wlc_info *wlc, wlc_bsscfg_t *bsscfg, d11txh_t *txh)
5295 frameid = le16_to_cpu(txh->TxFrameID) & ~(TXFID_SEQ_MASK |
5299 mc_fid_counter++) << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
5306 wlc_txfifo(struct wlc_info *wlc, uint fifo, struct sk_buff *p, bool commit,
5309 u16 frameid = INVALIDFID;
5312 ASSERT(fifo < NFIFO);
5313 txh = (d11txh_t *) (p->data);
5315 /* When a BC/MC frame is being committed to the BCMC fifo via DMA (NOT PIO), update
5316 * ucode or BSS info as appropriate.
5318 if (fifo == TX_BCMC_FIFO) {
5319 frameid = le16_to_cpu(txh->TxFrameID);
5323 if (WLC_WAR16165(wlc))
5324 wlc_war16165(wlc, true);
5327 /* Bump up pending count for if not using rpc. If rpc is used, this will be handled
5328 * in wlc_bmac_txfifo()
5331 TXPKTPENDINC(wlc, fifo, txpktpend);
5332 WL_TRACE("wlc_txfifo, pktpend inc %d to %d\n",
5333 txpktpend, TXPKTPENDGET(wlc, fifo));
5336 /* Commit BCMC sequence number in the SHM frame ID location */
5337 if (frameid != INVALIDFID)
5338 BCMCFID(wlc, frameid);
5340 if (dma_txfast(wlc->hw->di[fifo], p, commit) < 0) {
5341 WL_ERROR("wlc_txfifo: fatal, toss frames !!!\n");
5346 wlc_compute_airtime(struct wlc_info *wlc, ratespec_t rspec, uint length)
5349 uint mac_rate = RSPEC2RATE(rspec);
5352 if (IS_MCS(rspec)) {
5353 /* not supported yet */
5355 } else if (IS_OFDM(rspec)) {
5356 /* nsyms = Ceiling(Nbits / (Nbits/sym))
5358 * Nbits = length * 8
5359 * Nbits/sym = Mbps * 4 = mac_rate * 2
5361 nsyms = CEIL((length * 8), (mac_rate * 2));
5363 /* usec = symbols * usec/symbol */
5364 usec = (u16) (nsyms * APHY_SYMBOL_TIME);
5375 usec = (length << 4) / 11;
5378 usec = (length << 3) / 11;
5381 WL_ERROR("wl%d: wlc_compute_airtime: unsupported rspec 0x%x\n",
5382 wlc->pub->unit, rspec);
5383 ASSERT((const char *)"Bad phy_rate" == NULL);
5392 wlc_compute_plcp(struct wlc_info *wlc, ratespec_t rspec, uint length, u8 *plcp)
5394 if (IS_MCS(rspec)) {
5395 wlc_compute_mimo_plcp(rspec, length, plcp);
5396 } else if (IS_OFDM(rspec)) {
5397 wlc_compute_ofdm_plcp(rspec, length, plcp);
5399 wlc_compute_cck_plcp(rspec, length, plcp);
5404 /* Rate: 802.11 rate code, length: PSDU length in octets */
5405 static void wlc_compute_mimo_plcp(ratespec_t rspec, uint length, u8 *plcp)
5407 u8 mcs = (u8) (rspec & RSPEC_RATE_MASK);
5408 ASSERT(IS_MCS(rspec));
5410 if (RSPEC_IS40MHZ(rspec) || (mcs == 32))
5411 plcp[0] |= MIMO_PLCP_40MHZ;
5412 WLC_SET_MIMO_PLCP_LEN(plcp, length);
5413 plcp[3] = RSPEC_MIMOPLCP3(rspec); /* rspec already holds this byte */
5414 plcp[3] |= 0x7; /* set smoothing, not sounding ppdu & reserved */
5415 plcp[4] = 0; /* number of extension spatial streams bit 0 & 1 */
5419 /* Rate: 802.11 rate code, length: PSDU length in octets */
5420 static void BCMFASTPATH
5421 wlc_compute_ofdm_plcp(ratespec_t rspec, u32 length, u8 *plcp)
5425 int rate = RSPEC2RATE(rspec);
5427 ASSERT(IS_OFDM(rspec));
5429 /* encode rate per 802.11a-1999 sec 17.3.4.1, with lsb transmitted first */
5430 rate_signal = rate_info[rate] & RATE_MASK;
5431 ASSERT(rate_signal != 0);
5433 memset(plcp, 0, D11_PHY_HDR_LEN);
5434 D11A_PHY_HDR_SRATE((ofdm_phy_hdr_t *) plcp, rate_signal);
5436 tmp = (length & 0xfff) << 5;
5437 plcp[2] |= (tmp >> 16) & 0xff;
5438 plcp[1] |= (tmp >> 8) & 0xff;
5439 plcp[0] |= tmp & 0xff;
5445 * Compute PLCP, but only requires actual rate and length of pkt.
5446 * Rate is given in the driver standard multiple of 500 kbps.
5447 * le is set for 11 Mbps rate if necessary.
5448 * Broken out for PRQ.
5451 static void wlc_cck_plcp_set(int rate_500, uint length, u8 *plcp)
5464 usec = (length << 4) / 11;
5465 if ((length << 4) - (usec * 11) > 0)
5469 usec = (length << 3) / 11;
5470 if ((length << 3) - (usec * 11) > 0) {
5472 if ((usec * 11) - (length << 3) >= 8)
5473 le = D11B_PLCP_SIGNAL_LE;
5478 WL_ERROR("wlc_cck_plcp_set: unsupported rate %d\n", rate_500);
5479 rate_500 = WLC_RATE_1M;
5483 /* PLCP signal byte */
5484 plcp[0] = rate_500 * 5; /* r (500kbps) * 5 == r (100kbps) */
5485 /* PLCP service byte */
5486 plcp[1] = (u8) (le | D11B_PLCP_SIGNAL_LOCKED);
5487 /* PLCP length u16, little endian */
5488 plcp[2] = usec & 0xff;
5489 plcp[3] = (usec >> 8) & 0xff;
5495 /* Rate: 802.11 rate code, length: PSDU length in octets */
5496 static void wlc_compute_cck_plcp(ratespec_t rspec, uint length, u8 *plcp)
5498 int rate = RSPEC2RATE(rspec);
5500 ASSERT(IS_CCK(rspec));
5502 wlc_cck_plcp_set(rate, length, plcp);
5505 /* wlc_compute_frame_dur()
5507 * Calculate the 802.11 MAC header DUR field for MPDU
5508 * DUR for a single frame = 1 SIFS + 1 ACK
5509 * DUR for a frame with following frags = 3 SIFS + 2 ACK + next frag time
5511 * rate MPDU rate in unit of 500kbps
5512 * next_frag_len next MPDU length in bytes
5513 * preamble_type use short/GF or long/MM PLCP header
5515 static u16 BCMFASTPATH
5516 wlc_compute_frame_dur(struct wlc_info *wlc, ratespec_t rate, u8 preamble_type,
5521 sifs = SIFS(wlc->band);
5524 dur += (u16) wlc_calc_ack_time(wlc, rate, preamble_type);
5526 if (next_frag_len) {
5527 /* Double the current DUR to get 2 SIFS + 2 ACKs */
5529 /* add another SIFS and the frag time */
5532 (u16) wlc_calc_frame_time(wlc, rate, preamble_type,
5538 /* wlc_compute_rtscts_dur()
5540 * Calculate the 802.11 MAC header DUR field for an RTS or CTS frame
5541 * DUR for normal RTS/CTS w/ frame = 3 SIFS + 1 CTS + next frame time + 1 ACK
5542 * DUR for CTS-TO-SELF w/ frame = 2 SIFS + next frame time + 1 ACK
5544 * cts cts-to-self or rts/cts
5545 * rts_rate rts or cts rate in unit of 500kbps
5546 * rate next MPDU rate in unit of 500kbps
5547 * frame_len next MPDU frame length in bytes
5550 wlc_compute_rtscts_dur(struct wlc_info *wlc, bool cts_only, ratespec_t rts_rate,
5551 ratespec_t frame_rate, u8 rts_preamble_type,
5552 u8 frame_preamble_type, uint frame_len, bool ba)
5556 sifs = SIFS(wlc->band);
5558 if (!cts_only) { /* RTS/CTS */
5561 (u16) wlc_calc_cts_time(wlc, rts_rate,
5563 } else { /* CTS-TO-SELF */
5568 (u16) wlc_calc_frame_time(wlc, frame_rate, frame_preamble_type,
5572 (u16) wlc_calc_ba_time(wlc, frame_rate,
5573 WLC_SHORT_PREAMBLE);
5576 (u16) wlc_calc_ack_time(wlc, frame_rate,
5577 frame_preamble_type);
5581 static bool wlc_phy_rspec_check(struct wlc_info *wlc, u16 bw, ratespec_t rspec)
5583 if (IS_MCS(rspec)) {
5584 uint mcs = rspec & RSPEC_RATE_MASK;
5587 ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_SDM);
5588 } else if ((mcs >= 8) && (mcs <= 23)) {
5589 ASSERT(RSPEC_STF(rspec) == PHY_TXC1_MODE_SDM);
5590 } else if (mcs == 32) {
5591 ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_SDM);
5592 ASSERT(bw == PHY_TXC1_BW_40MHZ_DUP);
5594 } else if (IS_OFDM(rspec)) {
5595 ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_STBC);
5597 ASSERT(IS_CCK(rspec));
5599 ASSERT((bw == PHY_TXC1_BW_20MHZ)
5600 || (bw == PHY_TXC1_BW_20MHZ_UP));
5601 ASSERT(RSPEC_STF(rspec) == PHY_TXC1_MODE_SISO);
5607 u16 BCMFASTPATH wlc_phytxctl1_calc(struct wlc_info *wlc, ratespec_t rspec)
5612 if (WLCISLCNPHY(wlc->band)) {
5613 bw = PHY_TXC1_BW_20MHZ;
5615 bw = RSPEC_GET_BW(rspec);
5616 /* 10Mhz is not supported yet */
5617 if (bw < PHY_TXC1_BW_20MHZ) {
5618 WL_ERROR("wlc_phytxctl1_calc: bw %d is not supported yet, set to 20L\n",
5620 bw = PHY_TXC1_BW_20MHZ;
5623 wlc_phy_rspec_check(wlc, bw, rspec);
5626 if (IS_MCS(rspec)) {
5627 uint mcs = rspec & RSPEC_RATE_MASK;
5629 /* bw, stf, coding-type is part of RSPEC_PHYTXBYTE2 returns */
5630 phyctl1 = RSPEC_PHYTXBYTE2(rspec);
5631 /* set the upper byte of phyctl1 */
5632 phyctl1 |= (mcs_table[mcs].tx_phy_ctl3 << 8);
5633 } else if (IS_CCK(rspec) && !WLCISLCNPHY(wlc->band)
5634 && !WLCISSSLPNPHY(wlc->band)) {
5635 /* In CCK mode LPPHY overloads OFDM Modulation bits with CCK Data Rate */
5636 /* Eventually MIMOPHY would also be converted to this format */
5637 /* 0 = 1Mbps; 1 = 2Mbps; 2 = 5.5Mbps; 3 = 11Mbps */
5638 phyctl1 = (bw | (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT));
5639 } else { /* legacy OFDM/CCK */
5641 /* get the phyctl byte from rate phycfg table */
5642 phycfg = wlc_rate_legacy_phyctl(RSPEC2RATE(rspec));
5644 WL_ERROR("wlc_phytxctl1_calc: wrong legacy OFDM/CCK rate\n");
5648 /* set the upper byte of phyctl1 */
5650 (bw | (phycfg << 8) |
5651 (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT));
5655 /* phy clock must support 40Mhz if tx descriptor uses it */
5656 if ((phyctl1 & PHY_TXC1_BW_MASK) >= PHY_TXC1_BW_40MHZ) {
5657 ASSERT(CHSPEC_WLC_BW(wlc->chanspec) == WLC_40_MHZ);
5658 ASSERT(wlc->chanspec == wlc_phy_chanspec_get(wlc->band->pi));
5664 ratespec_t BCMFASTPATH
5665 wlc_rspec_to_rts_rspec(struct wlc_info *wlc, ratespec_t rspec, bool use_rspec,
5668 ratespec_t rts_rspec = 0;
5671 /* use frame rate as rts rate */
5674 } else if (wlc->band->gmode && wlc->protection->_g && !IS_CCK(rspec)) {
5675 /* Use 11Mbps as the g protection RTS target rate and fallback.
5676 * Use the WLC_BASIC_RATE() lookup to find the best basic rate under the
5677 * target in case 11 Mbps is not Basic.
5678 * 6 and 9 Mbps are not usually selected by rate selection, but even
5679 * if the OFDM rate we are protecting is 6 or 9 Mbps, 11 is more robust.
5681 rts_rspec = WLC_BASIC_RATE(wlc, WLC_RATE_11M);
5683 /* calculate RTS rate and fallback rate based on the frame rate
5684 * RTS must be sent at a basic rate since it is a
5685 * control frame, sec 9.6 of 802.11 spec
5687 rts_rspec = WLC_BASIC_RATE(wlc, rspec);
5690 if (WLC_PHY_11N_CAP(wlc->band)) {
5691 /* set rts txbw to correct side band */
5692 rts_rspec &= ~RSPEC_BW_MASK;
5694 /* if rspec/rspec_fallback is 40MHz, then send RTS on both 20MHz channel
5695 * (DUP), otherwise send RTS on control channel
5697 if (RSPEC_IS40MHZ(rspec) && !IS_CCK(rts_rspec))
5698 rts_rspec |= (PHY_TXC1_BW_40MHZ_DUP << RSPEC_BW_SHIFT);
5700 rts_rspec |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
5702 /* pick siso/cdd as default for ofdm */
5703 if (IS_OFDM(rts_rspec)) {
5704 rts_rspec &= ~RSPEC_STF_MASK;
5705 rts_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
5712 * Add d11txh_t, cck_phy_hdr_t.
5714 * 'p' data must start with 802.11 MAC header
5715 * 'p' must allow enough bytes of local headers to be "pushed" onto the packet
5717 * headroom == D11_PHY_HDR_LEN + D11_TXH_LEN (D11_TXH_LEN is now 104 bytes)
5720 static u16 BCMFASTPATH
5721 wlc_d11hdrs_mac80211(struct wlc_info *wlc, struct ieee80211_hw *hw,
5722 struct sk_buff *p, struct scb *scb, uint frag,
5723 uint nfrags, uint queue, uint next_frag_len,
5724 wsec_key_t *key, ratespec_t rspec_override)
5726 struct ieee80211_hdr *h;
5728 u8 *plcp, plcp_fallback[D11_PHY_HDR_LEN];
5729 struct osl_info *osh;
5730 int len, phylen, rts_phylen;
5731 u16 frameid, mch, phyctl, xfts, mainrates;
5732 u16 seq = 0, mcl = 0, status = 0;
5733 ratespec_t rspec[2] = { WLC_RATE_1M, WLC_RATE_1M }, rts_rspec[2] = {
5734 WLC_RATE_1M, WLC_RATE_1M};
5735 bool use_rts = false;
5736 bool use_cts = false;
5737 bool use_rifs = false;
5738 bool short_preamble[2] = { false, false };
5739 u8 preamble_type[2] = { WLC_LONG_PREAMBLE, WLC_LONG_PREAMBLE };
5740 u8 rts_preamble_type[2] = { WLC_LONG_PREAMBLE, WLC_LONG_PREAMBLE };
5741 u8 *rts_plcp, rts_plcp_fallback[D11_PHY_HDR_LEN];
5742 struct ieee80211_rts *rts = NULL;
5746 bool hwtkmic = false;
5747 u16 mimo_ctlchbw = PHY_TXC1_BW_20MHZ;
5748 #define ANTCFG_NONE 0xFF
5749 u8 antcfg = ANTCFG_NONE;
5750 u8 fbantcfg = ANTCFG_NONE;
5751 uint phyctl1_stf = 0;
5753 struct ieee80211_tx_rate *txrate[2];
5755 struct ieee80211_tx_info *tx_info;
5758 u8 mimo_preamble_type;
5762 ASSERT(queue < NFIFO);
5766 /* locate 802.11 MAC header */
5767 h = (struct ieee80211_hdr *)(p->data);
5768 qos = ieee80211_is_data_qos(h->frame_control);
5770 /* compute length of frame in bytes for use in PLCP computations */
5772 phylen = len + FCS_LEN;
5774 /* If WEP enabled, add room in phylen for the additional bytes of
5775 * ICV which MAC generates. We do NOT add the additional bytes to
5776 * the packet itself, thus phylen = packet length + ICV_LEN + FCS_LEN
5780 phylen += key->icv_len;
5784 tx_info = IEEE80211_SKB_CB(p);
5788 plcp = skb_push(p, D11_PHY_HDR_LEN);
5790 /* add Broadcom tx descriptor header */
5791 txh = (d11txh_t *) skb_push(p, D11_TXH_LEN);
5792 memset(txh, 0, D11_TXH_LEN);
5795 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
5796 /* non-AP STA should never use BCMC queue */
5797 ASSERT(queue != TX_BCMC_FIFO);
5798 if (queue == TX_BCMC_FIFO) {
5799 WL_ERROR("wl%d: %s: ASSERT queue == TX_BCMC!\n",
5800 WLCWLUNIT(wlc), __func__);
5801 frameid = bcmc_fid_generate(wlc, NULL, txh);
5803 /* Increment the counter for first fragment */
5804 if (tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) {
5805 SCB_SEQNUM(scb, p->priority)++;
5808 /* extract fragment number from frame first */
5809 seq = le16_to_cpu(seq) & FRAGNUM_MASK;
5810 seq |= (SCB_SEQNUM(scb, p->priority) << SEQNUM_SHIFT);
5811 h->seq_ctrl = cpu_to_le16(seq);
5813 frameid = ((seq << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
5814 (queue & TXFID_QUEUE_MASK);
5817 frameid |= queue & TXFID_QUEUE_MASK;
5819 /* set the ignpmq bit for all pkts tx'd in PS mode and for beacons */
5820 if (SCB_PS(scb) || ieee80211_is_beacon(h->frame_control))
5821 mcl |= TXC_IGNOREPMQ;
5823 ASSERT(hw->max_rates <= IEEE80211_TX_MAX_RATES);
5824 ASSERT(hw->max_rates == 2);
5826 txrate[0] = tx_info->control.rates;
5827 txrate[1] = txrate[0] + 1;
5829 ASSERT(txrate[0]->idx >= 0);
5830 /* if rate control algorithm didn't give us a fallback rate, use the primary rate */
5831 if (txrate[1]->idx < 0) {
5832 txrate[1] = txrate[0];
5835 for (k = 0; k < hw->max_rates; k++) {
5837 txrate[k]->flags & IEEE80211_TX_RC_MCS ? true : false;
5839 ASSERT(!(tx_info->flags & IEEE80211_TX_CTL_AMPDU));
5840 if ((txrate[k]->idx >= 0)
5841 && (txrate[k]->idx <
5842 hw->wiphy->bands[tx_info->band]->n_bitrates)) {
5844 hw->wiphy->bands[tx_info->band]->
5845 bitrates[txrate[k]->idx].hw_value;
5848 flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ?
5851 ASSERT((txrate[k]->idx >= 0) &&
5853 hw->wiphy->bands[tx_info->band]->
5855 rate_val[k] = WLC_RATE_1M;
5858 rate_val[k] = txrate[k]->idx;
5860 /* Currently only support same setting for primay and fallback rates.
5861 * Unify flags for each rate into a single value for the frame
5865 flags & IEEE80211_TX_RC_USE_RTS_CTS ? true : false;
5868 flags & IEEE80211_TX_RC_USE_CTS_PROTECT ? true : false;
5871 rate_val[k] |= NRATE_MCS_INUSE;
5873 rspec[k] = mac80211_wlc_set_nrate(wlc, wlc->band, rate_val[k]);
5875 /* (1) RATE: determine and validate primary rate and fallback rates */
5876 if (!RSPEC_ACTIVE(rspec[k])) {
5877 ASSERT(RSPEC_ACTIVE(rspec[k]));
5878 rspec[k] = WLC_RATE_1M;
5880 if (!is_multicast_ether_addr(h->addr1)) {
5881 /* set tx antenna config */
5882 wlc_antsel_antcfg_get(wlc->asi, false, false, 0,
5883 0, &antcfg, &fbantcfg);
5888 phyctl1_stf = wlc->stf->ss_opmode;
5890 if (N_ENAB(wlc->pub)) {
5891 for (k = 0; k < hw->max_rates; k++) {
5892 /* apply siso/cdd to single stream mcs's or ofdm if rspec is auto selected */
5893 if (((IS_MCS(rspec[k]) &&
5894 IS_SINGLE_STREAM(rspec[k] & RSPEC_RATE_MASK)) ||
5896 && ((rspec[k] & RSPEC_OVERRIDE_MCS_ONLY)
5897 || !(rspec[k] & RSPEC_OVERRIDE))) {
5898 rspec[k] &= ~(RSPEC_STF_MASK | RSPEC_STC_MASK);
5900 /* For SISO MCS use STBC if possible */
5901 if (IS_MCS(rspec[k])
5902 && WLC_STF_SS_STBC_TX(wlc, scb)) {
5905 ASSERT(WLC_STBC_CAP_PHY(wlc));
5906 stc = 1; /* Nss for single stream is always 1 */
5908 (PHY_TXC1_MODE_STBC <<
5909 RSPEC_STF_SHIFT) | (stc <<
5913 (phyctl1_stf << RSPEC_STF_SHIFT);
5916 /* Is the phy configured to use 40MHZ frames? If so then pick the desired txbw */
5917 if (CHSPEC_WLC_BW(wlc->chanspec) == WLC_40_MHZ) {
5918 /* default txbw is 20in40 SB */
5919 mimo_ctlchbw = mimo_txbw =
5920 CHSPEC_SB_UPPER(WLC_BAND_PI_RADIO_CHANSPEC)
5921 ? PHY_TXC1_BW_20MHZ_UP : PHY_TXC1_BW_20MHZ;
5923 if (IS_MCS(rspec[k])) {
5924 /* mcs 32 must be 40b/w DUP */
5925 if ((rspec[k] & RSPEC_RATE_MASK) == 32) {
5927 PHY_TXC1_BW_40MHZ_DUP;
5929 } else if (wlc->mimo_40txbw != AUTO)
5930 mimo_txbw = wlc->mimo_40txbw;
5931 /* else check if dst is using 40 Mhz */
5932 else if (scb->flags & SCB_IS40)
5933 mimo_txbw = PHY_TXC1_BW_40MHZ;
5934 } else if (IS_OFDM(rspec[k])) {
5935 if (wlc->ofdm_40txbw != AUTO)
5936 mimo_txbw = wlc->ofdm_40txbw;
5938 ASSERT(IS_CCK(rspec[k]));
5939 if (wlc->cck_40txbw != AUTO)
5940 mimo_txbw = wlc->cck_40txbw;
5943 /* mcs32 is 40 b/w only.
5944 * This is possible for probe packets on a STA during SCAN
5946 if ((rspec[k] & RSPEC_RATE_MASK) == 32) {
5948 rspec[k] = RSPEC_MIMORATE;
5950 mimo_txbw = PHY_TXC1_BW_20MHZ;
5953 /* Set channel width */
5954 rspec[k] &= ~RSPEC_BW_MASK;
5955 if ((k == 0) || ((k > 0) && IS_MCS(rspec[k])))
5956 rspec[k] |= (mimo_txbw << RSPEC_BW_SHIFT);
5958 rspec[k] |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
5962 if (IS_MCS(rspec[k])
5963 && (txrate[k]->flags & IEEE80211_TX_RC_SHORT_GI))
5964 rspec[k] |= RSPEC_SHORT_GI;
5965 else if (!(txrate[k]->flags & IEEE80211_TX_RC_SHORT_GI))
5966 rspec[k] &= ~RSPEC_SHORT_GI;
5968 rspec[k] &= ~RSPEC_SHORT_GI;
5971 mimo_preamble_type = WLC_MM_PREAMBLE;
5972 if (txrate[k]->flags & IEEE80211_TX_RC_GREEN_FIELD)
5973 mimo_preamble_type = WLC_GF_PREAMBLE;
5975 if ((txrate[k]->flags & IEEE80211_TX_RC_MCS)
5976 && (!IS_MCS(rspec[k]))) {
5977 WL_ERROR("wl%d: %s: IEEE80211_TX_RC_MCS != IS_MCS(rspec)\n",
5978 WLCWLUNIT(wlc), __func__);
5979 ASSERT(0 && "Rate mismatch");
5982 if (IS_MCS(rspec[k])) {
5983 preamble_type[k] = mimo_preamble_type;
5985 /* if SGI is selected, then forced mm for single stream */
5986 if ((rspec[k] & RSPEC_SHORT_GI)
5987 && IS_SINGLE_STREAM(rspec[k] &
5989 preamble_type[k] = WLC_MM_PREAMBLE;
5993 /* mimo bw field MUST now be valid in the rspec (it affects duration calculations) */
5994 ASSERT(VALID_RATE_DBG(wlc, rspec[0]));
5996 /* should be better conditionalized */
5997 if (!IS_MCS(rspec[0])
5998 && (tx_info->control.rates[0].
5999 flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE))
6000 preamble_type[k] = WLC_SHORT_PREAMBLE;
6002 ASSERT(!IS_MCS(rspec[0])
6003 || WLC_IS_MIMO_PREAMBLE(preamble_type[k]));
6006 for (k = 0; k < hw->max_rates; k++) {
6007 /* Set ctrlchbw as 20Mhz */
6008 ASSERT(!IS_MCS(rspec[k]));
6009 rspec[k] &= ~RSPEC_BW_MASK;
6010 rspec[k] |= (PHY_TXC1_BW_20MHZ << RSPEC_BW_SHIFT);
6012 /* for nphy, stf of ofdm frames must follow policies */
6013 if (WLCISNPHY(wlc->band) && IS_OFDM(rspec[k])) {
6014 rspec[k] &= ~RSPEC_STF_MASK;
6015 rspec[k] |= phyctl1_stf << RSPEC_STF_SHIFT;
6020 /* Reset these for use with AMPDU's */
6021 txrate[0]->count = 0;
6022 txrate[1]->count = 0;
6024 /* (2) PROTECTION, may change rspec */
6025 if ((ieee80211_is_data(h->frame_control) ||
6026 ieee80211_is_mgmt(h->frame_control)) &&
6027 (phylen > wlc->RTSThresh) && !is_multicast_ether_addr(h->addr1))
6030 /* (3) PLCP: determine PLCP header and MAC duration, fill d11txh_t */
6031 wlc_compute_plcp(wlc, rspec[0], phylen, plcp);
6032 wlc_compute_plcp(wlc, rspec[1], phylen, plcp_fallback);
6033 memcpy(&txh->FragPLCPFallback,
6034 plcp_fallback, sizeof(txh->FragPLCPFallback));
6036 /* Length field now put in CCK FBR CRC field */
6037 if (IS_CCK(rspec[1])) {
6038 txh->FragPLCPFallback[4] = phylen & 0xff;
6039 txh->FragPLCPFallback[5] = (phylen & 0xff00) >> 8;
6042 /* MIMO-RATE: need validation ?? */
6044 IS_OFDM(rspec[0]) ? D11A_PHY_HDR_GRATE((ofdm_phy_hdr_t *) plcp) :
6047 /* DUR field for main rate */
6048 if (!ieee80211_is_pspoll(h->frame_control) &&
6049 !is_multicast_ether_addr(h->addr1) && !use_rifs) {
6051 wlc_compute_frame_dur(wlc, rspec[0], preamble_type[0],
6053 h->duration_id = cpu_to_le16(durid);
6054 } else if (use_rifs) {
6055 /* NAV protect to end of next max packet size */
6057 (u16) wlc_calc_frame_time(wlc, rspec[0],
6059 DOT11_MAX_FRAG_LEN);
6060 durid += RIFS_11N_TIME;
6061 h->duration_id = cpu_to_le16(durid);
6064 /* DUR field for fallback rate */
6065 if (ieee80211_is_pspoll(h->frame_control))
6066 txh->FragDurFallback = h->duration_id;
6067 else if (is_multicast_ether_addr(h->addr1) || use_rifs)
6068 txh->FragDurFallback = 0;
6070 durid = wlc_compute_frame_dur(wlc, rspec[1],
6071 preamble_type[1], next_frag_len);
6072 txh->FragDurFallback = cpu_to_le16(durid);
6075 /* (4) MAC-HDR: MacTxControlLow */
6077 mcl |= TXC_STARTMSDU;
6079 if (!is_multicast_ether_addr(h->addr1))
6080 mcl |= TXC_IMMEDACK;
6082 if (BAND_5G(wlc->band->bandtype))
6083 mcl |= TXC_FREQBAND_5G;
6085 if (CHSPEC_IS40(WLC_BAND_PI_RADIO_CHANSPEC))
6088 /* set AMIC bit if using hardware TKIP MIC */
6092 txh->MacTxControlLow = cpu_to_le16(mcl);
6094 /* MacTxControlHigh */
6097 /* Set fallback rate preamble type */
6098 if ((preamble_type[1] == WLC_SHORT_PREAMBLE) ||
6099 (preamble_type[1] == WLC_GF_PREAMBLE)) {
6100 ASSERT((preamble_type[1] == WLC_GF_PREAMBLE) ||
6101 (!IS_MCS(rspec[1])));
6102 if (RSPEC2RATE(rspec[1]) != WLC_RATE_1M)
6103 mch |= TXC_PREAMBLE_DATA_FB_SHORT;
6106 /* MacFrameControl */
6107 memcpy(&txh->MacFrameControl, &h->frame_control, sizeof(u16));
6108 txh->TxFesTimeNormal = cpu_to_le16(0);
6110 txh->TxFesTimeFallback = cpu_to_le16(0);
6113 memcpy(&txh->TxFrameRA, &h->addr1, ETH_ALEN);
6116 txh->TxFrameID = cpu_to_le16(frameid);
6118 /* TxStatus, Note the case of recreating the first frag of a suppressed frame
6119 * then we may need to reset the retry cnt's via the status reg
6121 txh->TxStatus = cpu_to_le16(status);
6123 /* extra fields for ucode AMPDU aggregation, the new fields are added to
6124 * the END of previous structure so that it's compatible in driver.
6126 txh->MaxNMpdus = cpu_to_le16(0);
6127 txh->MaxABytes_MRT = cpu_to_le16(0);
6128 txh->MaxABytes_FBR = cpu_to_le16(0);
6129 txh->MinMBytes = cpu_to_le16(0);
6131 /* (5) RTS/CTS: determine RTS/CTS PLCP header and MAC duration, furnish d11txh_t */
6132 /* RTS PLCP header and RTS frame */
6133 if (use_rts || use_cts) {
6134 if (use_rts && use_cts)
6137 for (k = 0; k < 2; k++) {
6138 rts_rspec[k] = wlc_rspec_to_rts_rspec(wlc, rspec[k],
6143 if (!IS_OFDM(rts_rspec[0]) &&
6144 !((RSPEC2RATE(rts_rspec[0]) == WLC_RATE_1M) ||
6145 (wlc->PLCPHdr_override == WLC_PLCP_LONG))) {
6146 rts_preamble_type[0] = WLC_SHORT_PREAMBLE;
6147 mch |= TXC_PREAMBLE_RTS_MAIN_SHORT;
6150 if (!IS_OFDM(rts_rspec[1]) &&
6151 !((RSPEC2RATE(rts_rspec[1]) == WLC_RATE_1M) ||
6152 (wlc->PLCPHdr_override == WLC_PLCP_LONG))) {
6153 rts_preamble_type[1] = WLC_SHORT_PREAMBLE;
6154 mch |= TXC_PREAMBLE_RTS_FB_SHORT;
6157 /* RTS/CTS additions to MacTxControlLow */
6159 txh->MacTxControlLow |= cpu_to_le16(TXC_SENDCTS);
6161 txh->MacTxControlLow |= cpu_to_le16(TXC_SENDRTS);
6162 txh->MacTxControlLow |= cpu_to_le16(TXC_LONGFRAME);
6165 /* RTS PLCP header */
6166 ASSERT(IS_ALIGNED((unsigned long)txh->RTSPhyHeader, sizeof(u16)));
6167 rts_plcp = txh->RTSPhyHeader;
6169 rts_phylen = DOT11_CTS_LEN + FCS_LEN;
6171 rts_phylen = DOT11_RTS_LEN + FCS_LEN;
6173 wlc_compute_plcp(wlc, rts_rspec[0], rts_phylen, rts_plcp);
6175 /* fallback rate version of RTS PLCP header */
6176 wlc_compute_plcp(wlc, rts_rspec[1], rts_phylen,
6178 memcpy(&txh->RTSPLCPFallback, rts_plcp_fallback,
6179 sizeof(txh->RTSPLCPFallback));
6181 /* RTS frame fields... */
6182 rts = (struct ieee80211_rts *)&txh->rts_frame;
6184 durid = wlc_compute_rtscts_dur(wlc, use_cts, rts_rspec[0],
6185 rspec[0], rts_preamble_type[0],
6186 preamble_type[0], phylen, false);
6187 rts->duration = cpu_to_le16(durid);
6188 /* fallback rate version of RTS DUR field */
6189 durid = wlc_compute_rtscts_dur(wlc, use_cts,
6190 rts_rspec[1], rspec[1],
6191 rts_preamble_type[1],
6192 preamble_type[1], phylen, false);
6193 txh->RTSDurFallback = cpu_to_le16(durid);
6196 rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
6197 IEEE80211_STYPE_CTS);
6199 memcpy(&rts->ra, &h->addr2, ETH_ALEN);
6201 rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
6202 IEEE80211_STYPE_RTS);
6204 memcpy(&rts->ra, &h->addr1, 2 * ETH_ALEN);
6208 * low 8 bits: main frag rate/mcs,
6209 * high 8 bits: rts/cts rate/mcs
6211 mainrates |= (IS_OFDM(rts_rspec[0]) ?
6212 D11A_PHY_HDR_GRATE((ofdm_phy_hdr_t *) rts_plcp) :
6215 memset((char *)txh->RTSPhyHeader, 0, D11_PHY_HDR_LEN);
6216 memset((char *)&txh->rts_frame, 0,
6217 sizeof(struct ieee80211_rts));
6218 memset((char *)txh->RTSPLCPFallback, 0,
6219 sizeof(txh->RTSPLCPFallback));
6220 txh->RTSDurFallback = 0;
6223 #ifdef SUPPORT_40MHZ
6224 /* add null delimiter count */
6225 if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && IS_MCS(rspec)) {
6226 txh->RTSPLCPFallback[AMPDU_FBR_NULL_DELIM] =
6227 wlc_ampdu_null_delim_cnt(wlc->ampdu, scb, rspec, phylen);
6231 /* Now that RTS/RTS FB preamble types are updated, write the final value */
6232 txh->MacTxControlHigh = cpu_to_le16(mch);
6234 /* MainRates (both the rts and frag plcp rates have been calculated now) */
6235 txh->MainRates = cpu_to_le16(mainrates);
6237 /* XtraFrameTypes */
6238 xfts = FRAMETYPE(rspec[1], wlc->mimoft);
6239 xfts |= (FRAMETYPE(rts_rspec[0], wlc->mimoft) << XFTS_RTS_FT_SHIFT);
6240 xfts |= (FRAMETYPE(rts_rspec[1], wlc->mimoft) << XFTS_FBRRTS_FT_SHIFT);
6242 CHSPEC_CHANNEL(WLC_BAND_PI_RADIO_CHANSPEC) << XFTS_CHANNEL_SHIFT;
6243 txh->XtraFrameTypes = cpu_to_le16(xfts);
6245 /* PhyTxControlWord */
6246 phyctl = FRAMETYPE(rspec[0], wlc->mimoft);
6247 if ((preamble_type[0] == WLC_SHORT_PREAMBLE) ||
6248 (preamble_type[0] == WLC_GF_PREAMBLE)) {
6249 ASSERT((preamble_type[0] == WLC_GF_PREAMBLE)
6250 || !IS_MCS(rspec[0]));
6251 if (RSPEC2RATE(rspec[0]) != WLC_RATE_1M)
6252 phyctl |= PHY_TXC_SHORT_HDR;
6253 wlc->pub->_cnt->txprshort++;
6256 /* phytxant is properly bit shifted */
6257 phyctl |= wlc_stf_d11hdrs_phyctl_txant(wlc, rspec[0]);
6258 txh->PhyTxControlWord = cpu_to_le16(phyctl);
6260 /* PhyTxControlWord_1 */
6261 if (WLC_PHY_11N_CAP(wlc->band)) {
6264 phyctl1 = wlc_phytxctl1_calc(wlc, rspec[0]);
6265 txh->PhyTxControlWord_1 = cpu_to_le16(phyctl1);
6266 phyctl1 = wlc_phytxctl1_calc(wlc, rspec[1]);
6267 txh->PhyTxControlWord_1_Fbr = cpu_to_le16(phyctl1);
6269 if (use_rts || use_cts) {
6270 phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[0]);
6271 txh->PhyTxControlWord_1_Rts = cpu_to_le16(phyctl1);
6272 phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[1]);
6273 txh->PhyTxControlWord_1_FbrRts = cpu_to_le16(phyctl1);
6277 * For mcs frames, if mixedmode(overloaded with long preamble) is going to be set,
6278 * fill in non-zero MModeLen and/or MModeFbrLen
6279 * it will be unnecessary if they are separated
6281 if (IS_MCS(rspec[0]) && (preamble_type[0] == WLC_MM_PREAMBLE)) {
6283 wlc_calc_lsig_len(wlc, rspec[0], phylen);
6284 txh->MModeLen = cpu_to_le16(mmodelen);
6287 if (IS_MCS(rspec[1]) && (preamble_type[1] == WLC_MM_PREAMBLE)) {
6289 wlc_calc_lsig_len(wlc, rspec[1], phylen);
6290 txh->MModeFbrLen = cpu_to_le16(mmodefbrlen);
6294 if (IS_MCS(rspec[0]))
6295 ASSERT(IS_MCS(rspec[1]));
6297 ASSERT(!IS_MCS(rspec[0]) ||
6298 ((preamble_type[0] == WLC_MM_PREAMBLE) == (txh->MModeLen != 0)));
6299 ASSERT(!IS_MCS(rspec[1]) ||
6300 ((preamble_type[1] == WLC_MM_PREAMBLE) ==
6301 (txh->MModeFbrLen != 0)));
6303 ac = wme_fifo2ac[queue];
6304 if (SCB_WME(scb) && qos && wlc->edcf_txop[ac]) {
6305 uint frag_dur, dur, dur_fallback;
6307 ASSERT(!is_multicast_ether_addr(h->addr1));
6309 /* WME: Update TXOP threshold */
6310 if ((!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) && (frag == 0)) {
6312 wlc_calc_frame_time(wlc, rspec[0], preamble_type[0],
6316 /* 1 RTS or CTS-to-self frame */
6318 wlc_calc_cts_time(wlc, rts_rspec[0],
6319 rts_preamble_type[0]);
6321 wlc_calc_cts_time(wlc, rts_rspec[1],
6322 rts_preamble_type[1]);
6323 /* (SIFS + CTS) + SIFS + frame + SIFS + ACK */
6324 dur += le16_to_cpu(rts->duration);
6326 le16_to_cpu(txh->RTSDurFallback);
6327 } else if (use_rifs) {
6331 /* frame + SIFS + ACK */
6334 wlc_compute_frame_dur(wlc, rspec[0],
6335 preamble_type[0], 0);
6338 wlc_calc_frame_time(wlc, rspec[1],
6342 wlc_compute_frame_dur(wlc, rspec[1],
6343 preamble_type[1], 0);
6345 /* NEED to set TxFesTimeNormal (hard) */
6346 txh->TxFesTimeNormal = cpu_to_le16((u16) dur);
6347 /* NEED to set fallback rate version of TxFesTimeNormal (hard) */
6348 txh->TxFesTimeFallback =
6349 cpu_to_le16((u16) dur_fallback);
6351 /* update txop byte threshold (txop minus intraframe overhead) */
6352 if (wlc->edcf_txop[ac] >= (dur - frag_dur)) {
6357 wlc_calc_frame_len(wlc, rspec[0],
6363 /* range bound the fragthreshold */
6364 if (newfragthresh < DOT11_MIN_FRAG_LEN)
6367 else if (newfragthresh >
6368 wlc->usr_fragthresh)
6370 wlc->usr_fragthresh;
6371 /* update the fragthresh and do txc update */
6372 if (wlc->fragthresh[queue] !=
6373 (u16) newfragthresh) {
6374 wlc->fragthresh[queue] =
6375 (u16) newfragthresh;
6379 WL_ERROR("wl%d: %s txop invalid for rate %d\n",
6380 wlc->pub->unit, fifo_names[queue],
6381 RSPEC2RATE(rspec[0]));
6383 if (dur > wlc->edcf_txop[ac])
6384 WL_ERROR("wl%d: %s: %s txop exceeded phylen %d/%d dur %d/%d\n",
6385 wlc->pub->unit, __func__,
6387 phylen, wlc->fragthresh[queue],
6388 dur, wlc->edcf_txop[ac]);
6395 void wlc_tbtt(struct wlc_info *wlc, d11regs_t *regs)
6397 wlc_bsscfg_t *cfg = wlc->cfg;
6399 wlc->pub->_cnt->tbtt++;
6401 if (BSSCFG_STA(cfg)) {
6402 /* run watchdog here if the watchdog timer is not armed */
6403 if (WLC_WATCHDOG_TBTT(wlc)) {
6406 wl_del_timer(wlc->wl, wlc->wdtimer);
6407 wlc->WDarmed = false;
6410 cur = OSL_SYSUPTIME();
6411 delta = cur > wlc->WDlast ? cur - wlc->WDlast :
6412 (u32) ~0 - wlc->WDlast + cur + 1;
6413 if (delta >= TIMER_INTERVAL_WATCHDOG) {
6414 wlc_watchdog((void *)wlc);
6418 wl_add_timer(wlc->wl, wlc->wdtimer,
6419 wlc_watchdog_backup_bi(wlc), true);
6420 wlc->WDarmed = true;
6425 /* DirFrmQ is now valid...defer setting until end of ATIM window */
6426 wlc->qvalid |= MCMD_DIRFRMQVAL;
6430 /* GP timer is a freerunning 32 bit counter, decrements at 1 us rate */
6431 void wlc_hwtimer_gptimer_set(struct wlc_info *wlc, uint us)
6433 W_REG(&wlc->regs->gptimer, us);
6436 void wlc_hwtimer_gptimer_abort(struct wlc_info *wlc)
6438 W_REG(&wlc->regs->gptimer, 0);
6441 static void wlc_hwtimer_gptimer_cb(struct wlc_info *wlc)
6443 /* when interrupt is generated, the counter is loaded with last value
6444 * written and continue to decrement. So it has to be cleaned first
6446 W_REG(&wlc->regs->gptimer, 0);
6450 * This fn has all the high level dpc processing from wlc_dpc.
6451 * POLICY: no macinstatus change, no bounding loop.
6452 * All dpc bounding should be handled in BMAC dpc, like txstatus and rxint
6454 void wlc_high_dpc(struct wlc_info *wlc, u32 macintstatus)
6456 d11regs_t *regs = wlc->regs;
6459 static const bcm_bit_desc_t int_flags[] = {
6460 {MI_MACSSPNDD, "MACSSPNDD"},
6461 {MI_BCNTPL, "BCNTPL"},
6463 {MI_BCNSUCCESS, "BCNSUCCESS"},
6464 {MI_BCNCANCLD, "BCNCANCLD"},
6465 {MI_ATIMWINEND, "ATIMWINEND"},
6467 {MI_NSPECGEN_0, "NSPECGEN_0"},
6468 {MI_NSPECGEN_1, "NSPECGEN_1"},
6469 {MI_MACTXERR, "MACTXERR"},
6470 {MI_NSPECGEN_3, "NSPECGEN_3"},
6471 {MI_PHYTXERR, "PHYTXERR"},
6475 {MI_DMAINT, "DMAINT"},
6476 {MI_TXSTOP, "TXSTOP"},
6478 {MI_BG_NOISE, "BG_NOISE"},
6479 {MI_DTIM_TBTT, "DTIM_TBTT"},
6481 {MI_PWRUP, "PWRUP"},
6482 {MI_RFDISABLE, "RFDISABLE"},
6484 {MI_PHYCHANGED, "PHYCHANGED"},
6489 if (macintstatus & ~(MI_TBTT | MI_TXSTOP)) {
6490 bcm_format_flags(int_flags, macintstatus, flagstr,
6492 WL_TRACE("wl%d: macintstatus 0x%x %s\n",
6493 wlc->pub->unit, macintstatus, flagstr);
6497 if (macintstatus & MI_PRQ) {
6498 /* Process probe request FIFO */
6499 ASSERT(0 && "PRQ Interrupt in non-MBSS");
6502 /* TBTT indication */
6503 /* ucode only gives either TBTT or DTIM_TBTT, not both */
6504 if (macintstatus & (MI_TBTT | MI_DTIM_TBTT))
6505 wlc_tbtt(wlc, regs);
6507 if (macintstatus & MI_GP0) {
6508 WL_ERROR("wl%d: PSM microcode watchdog fired at %d (seconds). Resetting.\n",
6509 wlc->pub->unit, wlc->pub->now);
6511 printk_once("%s : PSM Watchdog, chipid 0x%x, chiprev 0x%x\n",
6512 __func__, wlc->pub->sih->chip,
6513 wlc->pub->sih->chiprev);
6515 wlc->pub->_cnt->psmwds++;
6521 /* gptimer timeout */
6522 if (macintstatus & MI_TO) {
6523 wlc_hwtimer_gptimer_cb(wlc);
6526 if (macintstatus & MI_RFDISABLE) {
6527 WL_ERROR("wl%d: MAC Detected a change on the RF Disable Input 0x%x\n",
6529 R_REG(®s->phydebug) & PDBG_RFD);
6530 /* delay the cleanup to wl_down in IBSS case */
6531 if ((R_REG(®s->phydebug) & PDBG_RFD)) {
6533 wlc_bsscfg_t *bsscfg;
6534 FOREACH_BSS(wlc, idx, bsscfg) {
6535 if (!BSSCFG_STA(bsscfg) || !bsscfg->enable
6538 WL_ERROR("wl%d: wlc_dpc: rfdisable -> wlc_bsscfg_disable()\n",
6544 /* send any enq'd tx packets. Just makes sure to jump start tx */
6545 if (!pktq_empty(&wlc->active_queue->q))
6546 wlc_send_q(wlc, wlc->active_queue);
6548 ASSERT(wlc_ps_check(wlc));
6551 static void wlc_war16165(struct wlc_info *wlc, bool tx)
6554 /* the post-increment is used in STAY_AWAKE macro */
6555 if (wlc->txpend16165war++ == 0)
6556 wlc_set_ps_ctrl(wlc);
6558 wlc->txpend16165war--;
6559 if (wlc->txpend16165war == 0)
6560 wlc_set_ps_ctrl(wlc);
6564 /* process an individual tx_status_t */
6567 wlc_dotxstatus(struct wlc_info *wlc, tx_status_t *txs, u32 frm_tx2)
6572 struct scb *scb = NULL;
6574 struct osl_info *osh;
6575 int tx_rts, tx_frame_count, tx_rts_count;
6576 uint totlen, supr_status;
6578 struct ieee80211_hdr *h;
6580 struct ieee80211_tx_info *tx_info;
6581 struct ieee80211_tx_rate *txrate;
6584 (void)(frm_tx2); /* Compiler reference to avoid unused variable warning */
6586 /* discard intermediate indications for ucode with one legitimate case:
6587 * e.g. if "useRTS" is set. ucode did a successful rts/cts exchange, but the subsequent
6588 * tx of DATA failed. so it will start rts/cts from the beginning (resetting the rts
6589 * transmission count)
6591 if (!(txs->status & TX_STATUS_AMPDU)
6592 && (txs->status & TX_STATUS_INTERMEDIATE)) {
6593 WLCNTADD(wlc->pub->_cnt->txnoack,
6595 status & TX_STATUS_FRM_RTX_MASK) >>
6596 TX_STATUS_FRM_RTX_SHIFT));
6597 WL_ERROR("%s: INTERMEDIATE but not AMPDU\n", __func__);
6602 queue = txs->frameid & TXFID_QUEUE_MASK;
6603 ASSERT(queue < NFIFO);
6604 if (queue >= NFIFO) {
6609 p = GETNEXTTXP(wlc, queue);
6610 if (WLC_WAR16165(wlc))
6611 wlc_war16165(wlc, false);
6615 txh = (d11txh_t *) (p->data);
6616 mcl = le16_to_cpu(txh->MacTxControlLow);
6619 if (WL_ERROR_ON()) {
6620 WL_ERROR("phyerr 0x%x, rate 0x%x\n",
6621 txs->phyerr, txh->MainRates);
6622 wlc_print_txdesc(txh);
6624 wlc_print_txstatus(txs);
6627 ASSERT(txs->frameid == cpu_to_le16(txh->TxFrameID));
6628 if (txs->frameid != cpu_to_le16(txh->TxFrameID))
6631 tx_info = IEEE80211_SKB_CB(p);
6632 h = (struct ieee80211_hdr *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
6634 scb = (struct scb *)tx_info->control.sta->drv_priv;
6636 if (N_ENAB(wlc->pub)) {
6637 u8 *plcp = (u8 *) (txh + 1);
6638 if (PLCP3_ISSGI(plcp[3]))
6639 wlc->pub->_cnt->txmpdu_sgi++;
6640 if (PLCP3_ISSTBC(plcp[3]))
6641 wlc->pub->_cnt->txmpdu_stbc++;
6644 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
6645 ASSERT((mcl & TXC_AMPDU_MASK) != TXC_AMPDU_NONE);
6646 wlc_ampdu_dotxstatus(wlc->ampdu, scb, p, txs);
6650 supr_status = txs->status & TX_STATUS_SUPR_MASK;
6651 if (supr_status == TX_STATUS_SUPR_BADCH)
6652 WL_NONE("%s: Pkt tx suppressed, possibly channel %d\n",
6653 __func__, CHSPEC_CHANNEL(wlc->default_bss->chanspec));
6655 tx_rts = cpu_to_le16(txh->MacTxControlLow) & TXC_SENDRTS;
6657 (txs->status & TX_STATUS_FRM_RTX_MASK) >> TX_STATUS_FRM_RTX_SHIFT;
6659 (txs->status & TX_STATUS_RTS_RTX_MASK) >> TX_STATUS_RTS_RTX_SHIFT;
6661 lastframe = !ieee80211_has_morefrags(h->frame_control);
6664 WL_ERROR("Not last frame!\n");
6667 ieee80211_tx_info_clear_status(tx_info);
6668 if (queue < AC_COUNT) {
6669 sfbl = WLC_WME_RETRY_SFB_GET(wlc, wme_fifo2ac[queue]);
6670 lfbl = WLC_WME_RETRY_LFB_GET(wlc, wme_fifo2ac[queue]);
6676 txrate = tx_info->status.rates;
6677 /* FIXME: this should use a combination of sfbl, lfbl depending on frame length and RTS setting */
6678 if ((tx_frame_count > sfbl) && (txrate[1].idx >= 0)) {
6679 /* rate selection requested a fallback rate and we used it */
6680 txrate->count = lfbl;
6681 txrate[1].count = tx_frame_count - lfbl;
6683 /* rate selection did not request fallback rate, or we didn't need it */
6684 txrate->count = tx_frame_count;
6685 /* rc80211_minstrel.c:minstrel_tx_status() expects unused rates to be marked with idx = -1 */
6687 txrate[1].count = 0;
6690 /* clear the rest of the rates */
6691 for (i = 2; i < IEEE80211_TX_MAX_RATES; i++) {
6693 txrate[i].count = 0;
6696 if (txs->status & TX_STATUS_ACK_RCV)
6697 tx_info->flags |= IEEE80211_TX_STAT_ACK;
6700 totlen = pkttotlen(p);
6703 wlc_txfifo_complete(wlc, queue, 1);
6709 /* remove PLCP & Broadcom tx descriptor header */
6710 skb_pull(p, D11_PHY_HDR_LEN);
6711 skb_pull(p, D11_TXH_LEN);
6712 ieee80211_tx_status_irqsafe(wlc->pub->ieee_hw, p);
6713 wlc->pub->_cnt->ieee_tx_status++;
6715 WL_ERROR("%s: Not last frame => not calling tx_status\n",
6724 pkt_buf_free_skb(osh, p, true);
6731 wlc_txfifo_complete(struct wlc_info *wlc, uint fifo, s8 txpktpend)
6733 TXPKTPENDDEC(wlc, fifo, txpktpend);
6734 WL_TRACE("wlc_txfifo_complete, pktpend dec %d to %d\n",
6735 txpktpend, TXPKTPENDGET(wlc, fifo));
6737 /* There is more room; mark precedences related to this FIFO sendable */
6738 WLC_TX_FIFO_ENAB(wlc, fifo);
6739 ASSERT(TXPKTPENDGET(wlc, fifo) >= 0);
6741 if (!TXPKTPENDTOT(wlc)) {
6742 if (wlc->block_datafifo & DATA_BLOCK_TX_SUPR)
6743 wlc_bsscfg_tx_check(wlc);
6746 /* Clear MHF2_TXBCMC_NOW flag if BCMC fifo has drained */
6747 if (AP_ENAB(wlc->pub) &&
6748 wlc->bcmcfifo_drain && !TXPKTPENDGET(wlc, TX_BCMC_FIFO)) {
6749 wlc->bcmcfifo_drain = false;
6750 wlc_mhf(wlc, MHF2, MHF2_TXBCMC_NOW, 0, WLC_BAND_AUTO);
6753 /* figure out which bsscfg is being worked on... */
6756 /* Given the beacon interval in kus, and a 64 bit TSF in us,
6757 * return the offset (in us) of the TSF from the last TBTT
6759 u32 wlc_calc_tbtt_offset(u32 bp, u32 tsf_h, u32 tsf_l)
6761 u32 k, btklo, btkhi, offset;
6763 /* TBTT is always an even multiple of the beacon_interval,
6764 * so the TBTT less than or equal to the beacon timestamp is
6765 * the beacon timestamp minus the beacon timestamp modulo
6766 * the beacon interval.
6768 * TBTT = BT - (BT % BIu)
6769 * = (BTk - (BTk % BP)) * 2^10
6771 * BT = beacon timestamp (usec, 64bits)
6772 * BTk = beacon timestamp (Kusec, 54bits)
6773 * BP = beacon interval (Kusec, 16bits)
6774 * BIu = BP * 2^10 = beacon interval (usec, 26bits)
6776 * To keep the calculations in u32s, the modulo operation
6777 * on the high part of BT needs to be done in parts using the
6779 * X*Y mod Z = ((X mod Z) * (Y mod Z)) mod Z
6781 * (X + Y) mod Z = ((X mod Z) + (Y mod Z)) mod Z
6783 * So, if BTk[n] = u16 n [0,3] of BTk.
6784 * BTk % BP = SUM((BTk[n] * 2^16n) % BP , 0<=n<4) % BP
6785 * and the SUM term can be broken down:
6786 * (BTk[n] * 2^16n) % BP
6787 * (BTk[n] * (2^16n % BP)) % BP
6789 * Create a set of power of 2 mod BP constants:
6790 * K[n] = 2^(16n) % BP
6791 * = (K[n-1] * 2^16) % BP
6792 * K[2] = 2^32 % BP = ((2^16 % BP) * 2^16) % BP
6794 * BTk % BP = BTk[0-1] % BP +
6795 * (BTk[2] * K[2]) % BP +
6796 * (BTk[3] * K[3]) % BP
6798 * Since K[n] < 2^16 and BTk[n] is < 2^16, then BTk[n] * K[n] < 2^32
6801 /* BTk = BT >> 10, btklo = BTk[0-3], bkthi = BTk[4-6] */
6802 btklo = (tsf_h << 22) | (tsf_l >> 10);
6803 btkhi = tsf_h >> 10;
6805 /* offset = BTk % BP */
6806 offset = btklo % bp;
6808 /* K[2] = ((2^16 % BP) * 2^16) % BP */
6809 k = (u32) (1 << 16) % bp;
6810 k = (u32) (k * 1 << 16) % (u32) bp;
6812 /* offset += (BTk[2] * K[2]) % BP */
6813 offset += ((btkhi & 0xffff) * k) % bp;
6816 btkhi = btkhi >> 16;
6818 /* k[3] = (K[2] * 2^16) % BP */
6821 /* offset += (BTk[3] * K[3]) % BP */
6822 offset += ((btkhi & 0xffff) * k) % bp;
6824 offset = offset % bp;
6826 /* convert offset from kus to us by shifting up 10 bits and
6827 * add in the low 10 bits of tsf that we ignored
6829 offset = (offset << 10) + (tsf_l & 0x3FF);
6834 /* Update beacon listen interval in shared memory */
6835 void wlc_bcn_li_upd(struct wlc_info *wlc)
6837 if (AP_ENAB(wlc->pub))
6840 /* wake up every DTIM is the default */
6841 if (wlc->bcn_li_dtim == 1)
6842 wlc_write_shm(wlc, M_BCN_LI, 0);
6844 wlc_write_shm(wlc, M_BCN_LI,
6845 (wlc->bcn_li_dtim << 8) | wlc->bcn_li_bcn);
6849 prep_mac80211_status(struct wlc_info *wlc, d11rxhdr_t *rxh, struct sk_buff *p,
6850 struct ieee80211_rx_status *rx_status)
6853 wlc_d11rxhdr_t *wlc_rxh = (wlc_d11rxhdr_t *) rxh;
6857 unsigned char *plcp;
6859 wlc_read_tsf(wlc, &tsf_l, &tsf_h); /* mactime */
6860 rx_status->mactime = tsf_h;
6861 rx_status->mactime <<= 32;
6862 rx_status->mactime |= tsf_l;
6863 rx_status->flag |= RX_FLAG_TSFT;
6865 channel = WLC_CHAN_CHANNEL(rxh->RxChan);
6867 /* XXX Channel/badn needs to be filtered against whether we are single/dual band card */
6869 rx_status->band = IEEE80211_BAND_5GHZ;
6870 rx_status->freq = ieee80211_ofdm_chan_to_freq(
6871 WF_CHAN_FACTOR_5_G/2, channel);
6874 rx_status->band = IEEE80211_BAND_2GHZ;
6875 rx_status->freq = ieee80211_dsss_chan_to_freq(channel);
6878 rx_status->signal = wlc_rxh->rssi; /* signal */
6882 rx_status->antenna = (rxh->PhyRxStatus_0 & PRXS0_RXANT_UPSUBBAND) ? 1 : 0; /* ant */
6886 rspec = wlc_compute_rspec(rxh, plcp);
6887 if (IS_MCS(rspec)) {
6888 rx_status->rate_idx = rspec & RSPEC_RATE_MASK;
6889 rx_status->flag |= RX_FLAG_HT;
6890 if (RSPEC_IS40MHZ(rspec))
6891 rx_status->flag |= RX_FLAG_40MHZ;
6893 switch (RSPEC2RATE(rspec)) {
6895 rx_status->rate_idx = 0;
6898 rx_status->rate_idx = 1;
6901 rx_status->rate_idx = 2;
6904 rx_status->rate_idx = 3;
6907 rx_status->rate_idx = 4;
6910 rx_status->rate_idx = 5;
6913 rx_status->rate_idx = 6;
6916 rx_status->rate_idx = 7;
6919 rx_status->rate_idx = 8;
6922 rx_status->rate_idx = 9;
6925 rx_status->rate_idx = 10;
6928 rx_status->rate_idx = 11;
6931 WL_ERROR("%s: Unknown rate\n", __func__);
6934 /* Determine short preamble and rate_idx */
6936 if (IS_CCK(rspec)) {
6937 if (rxh->PhyRxStatus_0 & PRXS0_SHORTH)
6938 WL_ERROR("Short CCK\n");
6939 rx_status->flag |= RX_FLAG_SHORTPRE;
6940 } else if (IS_OFDM(rspec)) {
6941 rx_status->flag |= RX_FLAG_SHORTPRE;
6943 WL_ERROR("%s: Unknown modulation\n", __func__);
6947 if (PLCP3_ISSGI(plcp[3]))
6948 rx_status->flag |= RX_FLAG_SHORT_GI;
6950 if (rxh->RxStatus1 & RXS_DECERR) {
6951 rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;
6952 WL_ERROR("%s: RX_FLAG_FAILED_PLCP_CRC\n", __func__);
6954 if (rxh->RxStatus1 & RXS_FCSERR) {
6955 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
6956 WL_ERROR("%s: RX_FLAG_FAILED_FCS_CRC\n", __func__);
6961 wlc_recvctl(struct wlc_info *wlc, struct osl_info *osh, d11rxhdr_t *rxh,
6965 struct ieee80211_rx_status rx_status;
6967 struct sk_buff *skb = p;
6970 * Cache plcp for first MPDU of AMPD and use chacched version for INTERMEDIATE.
6971 * Test for INTERMEDIATE like so:
6972 * if (!(plcp[0] | plcp[1] | plcp[2]))
6975 memset(&rx_status, 0, sizeof(rx_status));
6976 prep_mac80211_status(wlc, rxh, p, &rx_status);
6978 /* mac header+body length, exclude CRC and plcp header */
6979 len_mpdu = p->len - D11_PHY_HDR_LEN - FCS_LEN;
6980 skb_pull(p, D11_PHY_HDR_LEN);
6981 __skb_trim(p, len_mpdu);
6986 ASSERT(IS_ALIGNED((unsigned long)skb->data, 2));
6988 memcpy(IEEE80211_SKB_RXCB(p), &rx_status, sizeof(rx_status));
6989 ieee80211_rx_irqsafe(wlc->pub->ieee_hw, p);
6991 wlc->pub->_cnt->ieee_rx++;
6996 void wlc_bss_list_free(struct wlc_info *wlc, struct wlc_bss_list *bss_list)
7001 WL_ERROR("%s: Attempting to free NULL list\n", __func__);
7004 /* inspect all BSS descriptor */
7005 for (index = 0; index < bss_list->count; index++) {
7006 kfree(bss_list->ptrs[index]);
7007 bss_list->ptrs[index] = NULL;
7009 bss_list->count = 0;
7012 /* Process received frames */
7014 * Return true if more frames need to be processed. false otherwise.
7015 * Param 'bound' indicates max. # frames to process before break out.
7018 void BCMFASTPATH wlc_recv(struct wlc_info *wlc, struct sk_buff *p)
7021 struct ieee80211_hdr *h;
7022 struct osl_info *osh;
7026 WL_TRACE("wl%d: wlc_recv\n", wlc->pub->unit);
7030 /* frame starts with rxhdr */
7031 rxh = (d11rxhdr_t *) (p->data);
7033 /* strip off rxhdr */
7034 skb_pull(p, wlc->hwrxoff);
7036 /* fixup rx header endianness */
7037 rxh->RxFrameSize = le16_to_cpu(rxh->RxFrameSize);
7038 rxh->PhyRxStatus_0 = le16_to_cpu(rxh->PhyRxStatus_0);
7039 rxh->PhyRxStatus_1 = le16_to_cpu(rxh->PhyRxStatus_1);
7040 rxh->PhyRxStatus_2 = le16_to_cpu(rxh->PhyRxStatus_2);
7041 rxh->PhyRxStatus_3 = le16_to_cpu(rxh->PhyRxStatus_3);
7042 rxh->PhyRxStatus_4 = le16_to_cpu(rxh->PhyRxStatus_4);
7043 rxh->PhyRxStatus_5 = le16_to_cpu(rxh->PhyRxStatus_5);
7044 rxh->RxStatus1 = le16_to_cpu(rxh->RxStatus1);
7045 rxh->RxStatus2 = le16_to_cpu(rxh->RxStatus2);
7046 rxh->RxTSFTime = le16_to_cpu(rxh->RxTSFTime);
7047 rxh->RxChan = le16_to_cpu(rxh->RxChan);
7049 /* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU subframes */
7050 if (rxh->RxStatus1 & RXS_PBPRES) {
7052 wlc->pub->_cnt->rxrunt++;
7053 WL_ERROR("wl%d: wlc_recv: rcvd runt of len %d\n",
7054 wlc->pub->unit, p->len);
7060 h = (struct ieee80211_hdr *)(p->data + D11_PHY_HDR_LEN);
7063 if (rxh->RxStatus1 & RXS_FCSERR) {
7064 if (wlc->pub->mac80211_state & MAC80211_PROMISC_BCNS) {
7065 WL_ERROR("FCSERR while scanning******* - tossing\n");
7068 WL_ERROR("RCSERR!!!\n");
7073 /* check received pkt has at least frame control field */
7074 if (len < D11_PHY_HDR_LEN + sizeof(h->frame_control)) {
7075 wlc->pub->_cnt->rxrunt++;
7079 is_amsdu = rxh->RxStatus2 & RXS_AMSDU_MASK;
7081 /* explicitly test bad src address to avoid sending bad deauth */
7083 /* CTS and ACK CTL frames are w/o a2 */
7085 if (ieee80211_is_data(h->frame_control) ||
7086 ieee80211_is_mgmt(h->frame_control)) {
7087 if ((is_zero_ether_addr(h->addr2) ||
7088 is_multicast_ether_addr(h->addr2))) {
7089 WL_ERROR("wl%d: %s: dropping a frame with "
7090 "invalid src mac address, a2: %pM\n",
7091 wlc->pub->unit, __func__, h->addr2);
7092 wlc->pub->_cnt->rxbadsrcmac++;
7095 wlc->pub->_cnt->rxfrag++;
7099 /* due to sheer numbers, toss out probe reqs for now */
7100 if (ieee80211_is_probe_req(h->frame_control))
7104 WL_ERROR("%s: is_amsdu causing toss\n", __func__);
7108 wlc_recvctl(wlc, osh, rxh, p);
7112 pkt_buf_free_skb(osh, p, false);
7115 /* calculate frame duration for Mixed-mode L-SIG spoofing, return
7116 * number of bytes goes in the length field
7118 * Formula given by HT PHY Spec v 1.13
7119 * len = 3(nsyms + nstream + 3) - 3
7122 wlc_calc_lsig_len(struct wlc_info *wlc, ratespec_t ratespec, uint mac_len)
7124 uint nsyms, len = 0, kNdps;
7126 WL_TRACE("wl%d: wlc_calc_lsig_len: rate %d, len%d\n",
7127 wlc->pub->unit, RSPEC2RATE(ratespec), mac_len);
7129 if (IS_MCS(ratespec)) {
7130 uint mcs = ratespec & RSPEC_RATE_MASK;
7131 /* MCS_TXS(mcs) returns num tx streams - 1 */
7132 int tot_streams = (MCS_TXS(mcs) + 1) + RSPEC_STC(ratespec);
7134 ASSERT(WLC_PHY_11N_CAP(wlc->band));
7135 /* the payload duration calculation matches that of regular ofdm */
7136 /* 1000Ndbps = kbps * 4 */
7138 MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
7139 RSPEC_ISSGI(ratespec)) * 4;
7141 if (RSPEC_STC(ratespec) == 0)
7142 /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
7144 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7145 APHY_TAIL_NBITS) * 1000, kNdps);
7147 /* STBC needs to have even number of symbols */
7150 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7151 APHY_TAIL_NBITS) * 1000, 2 * kNdps);
7153 nsyms += (tot_streams + 3); /* (+3) account for HT-SIG(2) and HT-STF(1) */
7154 /* 3 bytes/symbol @ legacy 6Mbps rate */
7155 len = (3 * nsyms) - 3; /* (-3) excluding service bits and tail bits */
7161 /* calculate frame duration of a given rate and length, return time in usec unit */
7163 wlc_calc_frame_time(struct wlc_info *wlc, ratespec_t ratespec, u8 preamble_type,
7166 uint nsyms, dur = 0, Ndps, kNdps;
7167 uint rate = RSPEC2RATE(ratespec);
7171 WL_ERROR("wl%d: WAR: using rate of 1 mbps\n", wlc->pub->unit);
7175 WL_TRACE("wl%d: wlc_calc_frame_time: rspec 0x%x, preamble_type %d, len%d\n",
7176 wlc->pub->unit, ratespec, preamble_type, mac_len);
7178 if (IS_MCS(ratespec)) {
7179 uint mcs = ratespec & RSPEC_RATE_MASK;
7180 int tot_streams = MCS_TXS(mcs) + RSPEC_STC(ratespec);
7181 ASSERT(WLC_PHY_11N_CAP(wlc->band));
7182 ASSERT(WLC_IS_MIMO_PREAMBLE(preamble_type));
7184 dur = PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
7185 if (preamble_type == WLC_MM_PREAMBLE)
7187 /* 1000Ndbps = kbps * 4 */
7189 MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
7190 RSPEC_ISSGI(ratespec)) * 4;
7192 if (RSPEC_STC(ratespec) == 0)
7193 /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
7195 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7196 APHY_TAIL_NBITS) * 1000, kNdps);
7198 /* STBC needs to have even number of symbols */
7201 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7202 APHY_TAIL_NBITS) * 1000, 2 * kNdps);
7204 dur += APHY_SYMBOL_TIME * nsyms;
7205 if (BAND_2G(wlc->band->bandtype))
7206 dur += DOT11_OFDM_SIGNAL_EXTENSION;
7207 } else if (IS_OFDM(rate)) {
7208 dur = APHY_PREAMBLE_TIME;
7209 dur += APHY_SIGNAL_TIME;
7210 /* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
7212 /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
7214 CEIL((APHY_SERVICE_NBITS + 8 * mac_len + APHY_TAIL_NBITS),
7216 dur += APHY_SYMBOL_TIME * nsyms;
7217 if (BAND_2G(wlc->band->bandtype))
7218 dur += DOT11_OFDM_SIGNAL_EXTENSION;
7220 /* calc # bits * 2 so factor of 2 in rate (1/2 mbps) will divide out */
7221 mac_len = mac_len * 8 * 2;
7222 /* calc ceiling of bits/rate = microseconds of air time */
7223 dur = (mac_len + rate - 1) / rate;
7224 if (preamble_type & WLC_SHORT_PREAMBLE)
7225 dur += BPHY_PLCP_SHORT_TIME;
7227 dur += BPHY_PLCP_TIME;
7232 /* The opposite of wlc_calc_frame_time */
7234 wlc_calc_frame_len(struct wlc_info *wlc, ratespec_t ratespec, u8 preamble_type,
7237 uint nsyms, mac_len, Ndps, kNdps;
7238 uint rate = RSPEC2RATE(ratespec);
7240 WL_TRACE("wl%d: wlc_calc_frame_len: rspec 0x%x, preamble_type %d, dur %d\n",
7241 wlc->pub->unit, ratespec, preamble_type, dur);
7243 if (IS_MCS(ratespec)) {
7244 uint mcs = ratespec & RSPEC_RATE_MASK;
7245 int tot_streams = MCS_TXS(mcs) + RSPEC_STC(ratespec);
7246 ASSERT(WLC_PHY_11N_CAP(wlc->band));
7247 dur -= PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
7248 /* payload calculation matches that of regular ofdm */
7249 if (BAND_2G(wlc->band->bandtype))
7250 dur -= DOT11_OFDM_SIGNAL_EXTENSION;
7251 /* kNdbps = kbps * 4 */
7253 MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
7254 RSPEC_ISSGI(ratespec)) * 4;
7255 nsyms = dur / APHY_SYMBOL_TIME;
7258 ((APHY_SERVICE_NBITS + APHY_TAIL_NBITS) * 1000)) / 8000;
7259 } else if (IS_OFDM(ratespec)) {
7260 dur -= APHY_PREAMBLE_TIME;
7261 dur -= APHY_SIGNAL_TIME;
7262 /* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
7264 nsyms = dur / APHY_SYMBOL_TIME;
7267 (APHY_SERVICE_NBITS + APHY_TAIL_NBITS)) / 8;
7269 if (preamble_type & WLC_SHORT_PREAMBLE)
7270 dur -= BPHY_PLCP_SHORT_TIME;
7272 dur -= BPHY_PLCP_TIME;
7273 mac_len = dur * rate;
7274 /* divide out factor of 2 in rate (1/2 mbps) */
7275 mac_len = mac_len / 8 / 2;
7281 wlc_calc_ba_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
7283 WL_TRACE("wl%d: wlc_calc_ba_time: rspec 0x%x, preamble_type %d\n",
7284 wlc->pub->unit, rspec, preamble_type);
7285 /* Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that is less than
7286 * or equal to the rate of the immediately previous frame in the FES
7288 rspec = WLC_BASIC_RATE(wlc, rspec);
7289 ASSERT(VALID_RATE_DBG(wlc, rspec));
7291 /* BA len == 32 == 16(ctl hdr) + 4(ba len) + 8(bitmap) + 4(fcs) */
7292 return wlc_calc_frame_time(wlc, rspec, preamble_type,
7293 (DOT11_BA_LEN + DOT11_BA_BITMAP_LEN +
7297 static uint BCMFASTPATH
7298 wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
7302 WL_TRACE("wl%d: wlc_calc_ack_time: rspec 0x%x, preamble_type %d\n",
7303 wlc->pub->unit, rspec, preamble_type);
7304 /* Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that is less than
7305 * or equal to the rate of the immediately previous frame in the FES
7307 rspec = WLC_BASIC_RATE(wlc, rspec);
7308 ASSERT(VALID_RATE_DBG(wlc, rspec));
7310 /* ACK frame len == 14 == 2(fc) + 2(dur) + 6(ra) + 4(fcs) */
7312 wlc_calc_frame_time(wlc, rspec, preamble_type,
7313 (DOT11_ACK_LEN + FCS_LEN));
7318 wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
7320 WL_TRACE("wl%d: wlc_calc_cts_time: ratespec 0x%x, preamble_type %d\n",
7321 wlc->pub->unit, rspec, preamble_type);
7322 return wlc_calc_ack_time(wlc, rspec, preamble_type);
7325 /* derive wlc->band->basic_rate[] table from 'rateset' */
7326 void wlc_rate_lookup_init(struct wlc_info *wlc, wlc_rateset_t *rateset)
7332 u8 *br = wlc->band->basic_rate;
7335 /* incoming rates are in 500kbps units as in 802.11 Supported Rates */
7336 memset(br, 0, WLC_MAXRATE + 1);
7338 /* For each basic rate in the rates list, make an entry in the
7339 * best basic lookup.
7341 for (i = 0; i < rateset->count; i++) {
7342 /* only make an entry for a basic rate */
7343 if (!(rateset->rates[i] & WLC_RATE_FLAG))
7346 /* mask off basic bit */
7347 rate = (rateset->rates[i] & RATE_MASK);
7349 if (rate > WLC_MAXRATE) {
7350 WL_ERROR("wlc_rate_lookup_init: invalid rate 0x%X in rate set\n",
7358 /* The rate lookup table now has non-zero entries for each
7359 * basic rate, equal to the basic rate: br[basicN] = basicN
7361 * To look up the best basic rate corresponding to any
7362 * particular rate, code can use the basic_rate table
7365 * basic_rate = wlc->band->basic_rate[tx_rate]
7367 * Make sure there is a best basic rate entry for
7368 * every rate by walking up the table from low rates
7369 * to high, filling in holes in the lookup table
7372 for (i = 0; i < wlc->band->hw_rateset.count; i++) {
7373 rate = wlc->band->hw_rateset.rates[i];
7374 ASSERT(rate <= WLC_MAXRATE);
7376 if (br[rate] != 0) {
7377 /* This rate is a basic rate.
7378 * Keep track of the best basic rate so far by
7389 /* This rate is not a basic rate so figure out the
7390 * best basic rate less than this rate and fill in
7391 * the hole in the table
7394 br[rate] = IS_OFDM(rate) ? ofdm_basic : cck_basic;
7399 if (IS_OFDM(rate)) {
7400 /* In 11g and 11a, the OFDM mandatory rates are 6, 12, and 24 Mbps */
7401 if (rate >= WLC_RATE_24M)
7402 mandatory = WLC_RATE_24M;
7403 else if (rate >= WLC_RATE_12M)
7404 mandatory = WLC_RATE_12M;
7406 mandatory = WLC_RATE_6M;
7408 /* In 11b, all the CCK rates are mandatory 1 - 11 Mbps */
7412 br[rate] = mandatory;
7416 static void wlc_write_rate_shm(struct wlc_info *wlc, u8 rate, u8 basic_rate)
7419 u8 basic_phy_rate, basic_index;
7420 u16 dir_table, basic_table;
7423 /* Shared memory address for the table we are reading */
7424 dir_table = IS_OFDM(basic_rate) ? M_RT_DIRMAP_A : M_RT_DIRMAP_B;
7426 /* Shared memory address for the table we are writing */
7427 basic_table = IS_OFDM(rate) ? M_RT_BBRSMAP_A : M_RT_BBRSMAP_B;
7430 * for a given rate, the LS-nibble of the PLCP SIGNAL field is
7431 * the index into the rate table.
7433 phy_rate = rate_info[rate] & RATE_MASK;
7434 basic_phy_rate = rate_info[basic_rate] & RATE_MASK;
7435 index = phy_rate & 0xf;
7436 basic_index = basic_phy_rate & 0xf;
7438 /* Find the SHM pointer to the ACK rate entry by looking in the
7441 basic_ptr = wlc_read_shm(wlc, (dir_table + basic_index * 2));
7443 /* Update the SHM BSS-basic-rate-set mapping table with the pointer
7444 * to the correct basic rate for the given incoming rate
7446 wlc_write_shm(wlc, (basic_table + index * 2), basic_ptr);
7449 static const wlc_rateset_t *wlc_rateset_get_hwrs(struct wlc_info *wlc)
7451 const wlc_rateset_t *rs_dflt;
7453 if (WLC_PHY_11N_CAP(wlc->band)) {
7454 if (BAND_5G(wlc->band->bandtype))
7455 rs_dflt = &ofdm_mimo_rates;
7457 rs_dflt = &cck_ofdm_mimo_rates;
7458 } else if (wlc->band->gmode)
7459 rs_dflt = &cck_ofdm_rates;
7461 rs_dflt = &cck_rates;
7466 void wlc_set_ratetable(struct wlc_info *wlc)
7468 const wlc_rateset_t *rs_dflt;
7470 u8 rate, basic_rate;
7473 rs_dflt = wlc_rateset_get_hwrs(wlc);
7474 ASSERT(rs_dflt != NULL);
7476 wlc_rateset_copy(rs_dflt, &rs);
7477 wlc_rateset_mcs_upd(&rs, wlc->stf->txstreams);
7479 /* walk the phy rate table and update SHM basic rate lookup table */
7480 for (i = 0; i < rs.count; i++) {
7481 rate = rs.rates[i] & RATE_MASK;
7483 /* for a given rate WLC_BASIC_RATE returns the rate at
7484 * which a response ACK/CTS should be sent.
7486 basic_rate = WLC_BASIC_RATE(wlc, rate);
7487 if (basic_rate == 0) {
7488 /* This should only happen if we are using a
7489 * restricted rateset.
7491 basic_rate = rs.rates[0] & RATE_MASK;
7494 wlc_write_rate_shm(wlc, rate, basic_rate);
7499 * Return true if the specified rate is supported by the specified band.
7500 * WLC_BAND_AUTO indicates the current band.
7502 bool wlc_valid_rate(struct wlc_info *wlc, ratespec_t rspec, int band,
7505 wlc_rateset_t *hw_rateset;
7508 if ((band == WLC_BAND_AUTO) || (band == wlc->band->bandtype)) {
7509 hw_rateset = &wlc->band->hw_rateset;
7510 } else if (NBANDS(wlc) > 1) {
7511 hw_rateset = &wlc->bandstate[OTHERBANDUNIT(wlc)]->hw_rateset;
7513 /* other band specified and we are a single band device */
7517 /* check if this is a mimo rate */
7518 if (IS_MCS(rspec)) {
7519 if (!VALID_MCS((rspec & RSPEC_RATE_MASK)))
7522 return isset(hw_rateset->mcs, (rspec & RSPEC_RATE_MASK));
7525 for (i = 0; i < hw_rateset->count; i++)
7526 if (hw_rateset->rates[i] == RSPEC2RATE(rspec))
7530 WL_ERROR("wl%d: wlc_valid_rate: rate spec 0x%x not in hw_rateset\n",
7531 wlc->pub->unit, rspec);
7537 static void wlc_update_mimo_band_bwcap(struct wlc_info *wlc, u8 bwcap)
7540 struct wlcband *band;
7542 for (i = 0; i < NBANDS(wlc); i++) {
7543 if (IS_SINGLEBAND_5G(wlc->deviceid))
7545 band = wlc->bandstate[i];
7546 if (band->bandtype == WLC_BAND_5G) {
7547 if ((bwcap == WLC_N_BW_40ALL)
7548 || (bwcap == WLC_N_BW_20IN2G_40IN5G))
7549 band->mimo_cap_40 = true;
7551 band->mimo_cap_40 = false;
7553 ASSERT(band->bandtype == WLC_BAND_2G);
7554 if (bwcap == WLC_N_BW_40ALL)
7555 band->mimo_cap_40 = true;
7557 band->mimo_cap_40 = false;
7561 wlc->mimo_band_bwcap = bwcap;
7564 void wlc_mod_prb_rsp_rate_table(struct wlc_info *wlc, uint frame_len)
7566 const wlc_rateset_t *rs_dflt;
7570 u8 plcp[D11_PHY_HDR_LEN];
7574 sifs = SIFS(wlc->band);
7576 rs_dflt = wlc_rateset_get_hwrs(wlc);
7577 ASSERT(rs_dflt != NULL);
7579 wlc_rateset_copy(rs_dflt, &rs);
7580 wlc_rateset_mcs_upd(&rs, wlc->stf->txstreams);
7582 /* walk the phy rate table and update MAC core SHM basic rate table entries */
7583 for (i = 0; i < rs.count; i++) {
7584 rate = rs.rates[i] & RATE_MASK;
7586 entry_ptr = wlc_rate_shm_offset(wlc, rate);
7588 /* Calculate the Probe Response PLCP for the given rate */
7589 wlc_compute_plcp(wlc, rate, frame_len, plcp);
7591 /* Calculate the duration of the Probe Response frame plus SIFS for the MAC */
7593 (u16) wlc_calc_frame_time(wlc, rate, WLC_LONG_PREAMBLE,
7597 /* Update the SHM Rate Table entry Probe Response values */
7598 wlc_write_shm(wlc, entry_ptr + M_RT_PRS_PLCP_POS,
7599 (u16) (plcp[0] + (plcp[1] << 8)));
7600 wlc_write_shm(wlc, entry_ptr + M_RT_PRS_PLCP_POS + 2,
7601 (u16) (plcp[2] + (plcp[3] << 8)));
7602 wlc_write_shm(wlc, entry_ptr + M_RT_PRS_DUR_POS, dur);
7607 wlc_compute_bcntsfoff(struct wlc_info *wlc, ratespec_t rspec,
7608 bool short_preamble, bool phydelay)
7612 if (IS_MCS(rspec)) {
7613 WL_ERROR("wl%d: recd beacon with mcs rate; rspec 0x%x\n",
7614 wlc->pub->unit, rspec);
7615 } else if (IS_OFDM(rspec)) {
7616 /* tx delay from MAC through phy to air (2.1 usec) +
7617 * phy header time (preamble + PLCP SIGNAL == 20 usec) +
7618 * PLCP SERVICE + MAC header time (SERVICE + FC + DUR + A1 + A2 + A3 + SEQ == 26
7619 * bytes at beacon rate)
7621 bcntsfoff += phydelay ? D11A_PHY_TX_DELAY : 0;
7622 bcntsfoff += APHY_PREAMBLE_TIME + APHY_SIGNAL_TIME;
7624 wlc_compute_airtime(wlc, rspec,
7625 APHY_SERVICE_NBITS / 8 +
7628 /* tx delay from MAC through phy to air (3.4 usec) +
7629 * phy header time (long preamble + PLCP == 192 usec) +
7630 * MAC header time (FC + DUR + A1 + A2 + A3 + SEQ == 24 bytes at beacon rate)
7632 bcntsfoff += phydelay ? D11B_PHY_TX_DELAY : 0;
7634 short_preamble ? D11B_PHY_SPREHDR_TIME :
7635 D11B_PHY_LPREHDR_TIME;
7636 bcntsfoff += wlc_compute_airtime(wlc, rspec, DOT11_MAC_HDR_LEN);
7638 return (u16) (bcntsfoff);
7641 /* Max buffering needed for beacon template/prb resp template is 142 bytes.
7643 * PLCP header is 6 bytes.
7644 * 802.11 A3 header is 24 bytes.
7645 * Max beacon frame body template length is 112 bytes.
7646 * Max probe resp frame body template length is 110 bytes.
7648 * *len on input contains the max length of the packet available.
7650 * The *len value is set to the number of bytes in buf used, and starts with the PLCP
7651 * and included up to, but not including, the 4 byte FCS.
7654 wlc_bcn_prb_template(struct wlc_info *wlc, u16 type, ratespec_t bcn_rspec,
7655 wlc_bsscfg_t *cfg, u16 *buf, int *len)
7657 static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255};
7658 cck_phy_hdr_t *plcp;
7659 struct ieee80211_mgmt *h;
7660 int hdr_len, body_len;
7662 ASSERT(*len >= 142);
7663 ASSERT(type == IEEE80211_STYPE_BEACON ||
7664 type == IEEE80211_STYPE_PROBE_RESP);
7666 if (MBSS_BCN_ENAB(cfg) && type == IEEE80211_STYPE_BEACON)
7667 hdr_len = DOT11_MAC_HDR_LEN;
7669 hdr_len = D11_PHY_HDR_LEN + DOT11_MAC_HDR_LEN;
7670 body_len = *len - hdr_len; /* calc buffer size provided for frame body */
7672 *len = hdr_len + body_len; /* return actual size */
7674 /* format PHY and MAC headers */
7675 memset((char *)buf, 0, hdr_len);
7677 plcp = (cck_phy_hdr_t *) buf;
7679 /* PLCP for Probe Response frames are filled in from core's rate table */
7680 if (type == IEEE80211_STYPE_BEACON && !MBSS_BCN_ENAB(cfg)) {
7682 wlc_compute_plcp(wlc, bcn_rspec,
7683 (DOT11_MAC_HDR_LEN + body_len + FCS_LEN),
7687 /* "Regular" and 16 MBSS but not for 4 MBSS */
7688 /* Update the phytxctl for the beacon based on the rspec */
7689 if (!SOFTBCN_ENAB(cfg))
7690 wlc_beacon_phytxctl_txant_upd(wlc, bcn_rspec);
7692 if (MBSS_BCN_ENAB(cfg) && type == IEEE80211_STYPE_BEACON)
7693 h = (struct ieee80211_mgmt *)&plcp[0];
7695 h = (struct ieee80211_mgmt *)&plcp[1];
7697 /* fill in 802.11 header */
7698 h->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | type);
7700 /* DUR is 0 for multicast bcn, or filled in by MAC for prb resp */
7701 /* A1 filled in by MAC for prb resp, broadcast for bcn */
7702 if (type == IEEE80211_STYPE_BEACON)
7703 memcpy(&h->da, ðer_bcast, ETH_ALEN);
7704 memcpy(&h->sa, &cfg->cur_etheraddr, ETH_ALEN);
7705 memcpy(&h->bssid, &cfg->BSSID, ETH_ALEN);
7707 /* SEQ filled in by MAC */
7712 int wlc_get_header_len()
7717 /* Update a beacon for a particular BSS
7718 * For MBSS, this updates the software template and sets "latest" to the index of the
7720 * Otherwise, it updates the hardware template.
7722 void wlc_bss_update_beacon(struct wlc_info *wlc, wlc_bsscfg_t *cfg)
7724 int len = BCN_TMPL_LEN;
7726 /* Clear the soft intmask */
7727 wlc->defmacintmask &= ~MI_BCNTPL;
7729 if (!cfg->up) { /* Only allow updates on an UP bss */
7733 /* Optimize: Some of if/else could be combined */
7734 if (!MBSS_BCN_ENAB(cfg) && HWBCN_ENAB(cfg)) {
7735 /* Hardware beaconing for this config */
7736 u16 bcn[BCN_TMPL_LEN / 2];
7737 u32 both_valid = MCMD_BCN0VLD | MCMD_BCN1VLD;
7738 d11regs_t *regs = wlc->regs;
7739 struct osl_info *osh = NULL;
7743 /* Check if both templates are in use, if so sched. an interrupt
7744 * that will call back into this routine
7746 if ((R_REG(®s->maccommand) & both_valid) == both_valid) {
7747 /* clear any previous status */
7748 W_REG(®s->macintstatus, MI_BCNTPL);
7750 /* Check that after scheduling the interrupt both of the
7751 * templates are still busy. if not clear the int. & remask
7753 if ((R_REG(®s->maccommand) & both_valid) == both_valid) {
7754 wlc->defmacintmask |= MI_BCNTPL;
7759 wlc_lowest_basic_rspec(wlc, &cfg->current_bss->rateset);
7760 ASSERT(wlc_valid_rate
7761 (wlc, wlc->bcn_rspec,
7762 CHSPEC_IS2G(cfg->current_bss->
7763 chanspec) ? WLC_BAND_2G : WLC_BAND_5G,
7766 /* update the template and ucode shm */
7767 wlc_bcn_prb_template(wlc, IEEE80211_STYPE_BEACON,
7768 wlc->bcn_rspec, cfg, bcn, &len);
7769 wlc_write_hw_bcntemplates(wlc, bcn, len, false);
7774 * Update all beacons for the system.
7776 void wlc_update_beacon(struct wlc_info *wlc)
7779 wlc_bsscfg_t *bsscfg;
7781 /* update AP or IBSS beacons */
7782 FOREACH_BSS(wlc, idx, bsscfg) {
7783 if (bsscfg->up && (BSSCFG_AP(bsscfg) || !bsscfg->BSS))
7784 wlc_bss_update_beacon(wlc, bsscfg);
7788 /* Write ssid into shared memory */
7789 void wlc_shm_ssid_upd(struct wlc_info *wlc, wlc_bsscfg_t *cfg)
7791 u8 *ssidptr = cfg->SSID;
7793 u8 ssidbuf[IEEE80211_MAX_SSID_LEN];
7795 /* padding the ssid with zero and copy it into shm */
7796 memset(ssidbuf, 0, IEEE80211_MAX_SSID_LEN);
7797 memcpy(ssidbuf, ssidptr, cfg->SSID_len);
7799 wlc_copyto_shm(wlc, base, ssidbuf, IEEE80211_MAX_SSID_LEN);
7801 if (!MBSS_BCN_ENAB(cfg))
7802 wlc_write_shm(wlc, M_SSIDLEN, (u16) cfg->SSID_len);
7805 void wlc_update_probe_resp(struct wlc_info *wlc, bool suspend)
7808 wlc_bsscfg_t *bsscfg;
7810 /* update AP or IBSS probe responses */
7811 FOREACH_BSS(wlc, idx, bsscfg) {
7812 if (bsscfg->up && (BSSCFG_AP(bsscfg) || !bsscfg->BSS))
7813 wlc_bss_update_probe_resp(wlc, bsscfg, suspend);
7818 wlc_bss_update_probe_resp(struct wlc_info *wlc, wlc_bsscfg_t *cfg, bool suspend)
7820 u16 prb_resp[BCN_TMPL_LEN / 2];
7821 int len = BCN_TMPL_LEN;
7823 /* write the probe response to hardware, or save in the config structure */
7824 if (!MBSS_PRB_ENAB(cfg)) {
7826 /* create the probe response template */
7827 wlc_bcn_prb_template(wlc, IEEE80211_STYPE_PROBE_RESP, 0, cfg,
7831 wlc_suspend_mac_and_wait(wlc);
7833 /* write the probe response into the template region */
7834 wlc_bmac_write_template_ram(wlc->hw, T_PRS_TPL_BASE,
7835 (len + 3) & ~3, prb_resp);
7837 /* write the length of the probe response frame (+PLCP/-FCS) */
7838 wlc_write_shm(wlc, M_PRB_RESP_FRM_LEN, (u16) len);
7840 /* write the SSID and SSID length */
7841 wlc_shm_ssid_upd(wlc, cfg);
7844 * Write PLCP headers and durations for probe response frames at all rates.
7845 * Use the actual frame length covered by the PLCP header for the call to
7846 * wlc_mod_prb_rsp_rate_table() by subtracting the PLCP len and adding the FCS.
7848 len += (-D11_PHY_HDR_LEN + FCS_LEN);
7849 wlc_mod_prb_rsp_rate_table(wlc, (u16) len);
7852 wlc_enable_mac(wlc);
7853 } else { /* Generating probe resp in sw; update local template */
7854 ASSERT(0 && "No software probe response support without MBSS");
7858 /* prepares pdu for transmission. returns BCM error codes */
7859 int wlc_prep_pdu(struct wlc_info *wlc, struct sk_buff *pdu, uint *fifop)
7861 struct osl_info *osh;
7864 struct ieee80211_hdr *h;
7870 txh = (d11txh_t *) (pdu->data);
7872 h = (struct ieee80211_hdr *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
7875 /* get the pkt queue info. This was put at wlc_sendctl or wlc_send for PDU */
7876 fifo = le16_to_cpu(txh->TxFrameID) & TXFID_QUEUE_MASK;
7882 /* return if insufficient dma resources */
7883 if (TXAVAIL(wlc, fifo) < MAX_DMA_SEGS) {
7884 /* Mark precedences related to this FIFO, unsendable */
7885 WLC_TX_FIFO_CLEAR(wlc, fifo);
7889 if (!ieee80211_is_data(txh->MacFrameControl))
7890 wlc->pub->_cnt->txctl++;
7895 /* init tx reported rate mechanism */
7896 void wlc_reprate_init(struct wlc_info *wlc)
7899 wlc_bsscfg_t *bsscfg;
7901 FOREACH_BSS(wlc, i, bsscfg) {
7902 wlc_bsscfg_reprate_init(bsscfg);
7906 /* per bsscfg init tx reported rate mechanism */
7907 void wlc_bsscfg_reprate_init(wlc_bsscfg_t *bsscfg)
7909 bsscfg->txrspecidx = 0;
7910 memset((char *)bsscfg->txrspec, 0, sizeof(bsscfg->txrspec));
7913 /* Retrieve a consolidated set of revision information,
7914 * typically for the WLC_GET_REVINFO ioctl
7916 int wlc_get_revision_info(struct wlc_info *wlc, void *buf, uint len)
7918 wlc_rev_info_t *rinfo = (wlc_rev_info_t *) buf;
7920 if (len < WL_REV_INFO_LEGACY_LENGTH)
7921 return BCME_BUFTOOSHORT;
7923 rinfo->vendorid = wlc->vendorid;
7924 rinfo->deviceid = wlc->deviceid;
7925 rinfo->radiorev = (wlc->band->radiorev << IDCODE_REV_SHIFT) |
7926 (wlc->band->radioid << IDCODE_ID_SHIFT);
7927 rinfo->chiprev = wlc->pub->sih->chiprev;
7928 rinfo->corerev = wlc->pub->corerev;
7929 rinfo->boardid = wlc->pub->sih->boardtype;
7930 rinfo->boardvendor = wlc->pub->sih->boardvendor;
7931 rinfo->boardrev = wlc->pub->boardrev;
7932 rinfo->ucoderev = wlc->ucode_rev;
7933 rinfo->driverrev = EPI_VERSION_NUM;
7934 rinfo->bus = wlc->pub->sih->bustype;
7935 rinfo->chipnum = wlc->pub->sih->chip;
7937 if (len >= (offsetof(wlc_rev_info_t, chippkg))) {
7938 rinfo->phytype = wlc->band->phytype;
7939 rinfo->phyrev = wlc->band->phyrev;
7940 rinfo->anarev = 0; /* obsolete stuff, suppress */
7943 if (len >= sizeof(*rinfo)) {
7944 rinfo->chippkg = wlc->pub->sih->chippkg;
7950 void wlc_default_rateset(struct wlc_info *wlc, wlc_rateset_t *rs)
7952 wlc_rateset_default(rs, NULL, wlc->band->phytype, wlc->band->bandtype,
7953 false, RATE_MASK_FULL, (bool) N_ENAB(wlc->pub),
7954 CHSPEC_WLC_BW(wlc->default_bss->chanspec),
7955 wlc->stf->txstreams);
7958 static void wlc_bss_default_init(struct wlc_info *wlc)
7960 chanspec_t chanspec;
7961 struct wlcband *band;
7962 wlc_bss_info_t *bi = wlc->default_bss;
7964 /* init default and target BSS with some sane initial values */
7965 memset((char *)(bi), 0, sizeof(wlc_bss_info_t));
7966 bi->beacon_period = ISSIM_ENAB(wlc->pub->sih) ? BEACON_INTERVAL_DEF_QT :
7967 BEACON_INTERVAL_DEFAULT;
7968 bi->dtim_period = ISSIM_ENAB(wlc->pub->sih) ? DTIM_INTERVAL_DEF_QT :
7969 DTIM_INTERVAL_DEFAULT;
7971 /* fill the default channel as the first valid channel
7972 * starting from the 2G channels
7974 chanspec = CH20MHZ_CHSPEC(1);
7975 ASSERT(chanspec != INVCHANSPEC);
7977 wlc->home_chanspec = bi->chanspec = chanspec;
7979 /* find the band of our default channel */
7981 if (NBANDS(wlc) > 1 && band->bandunit != CHSPEC_WLCBANDUNIT(chanspec))
7982 band = wlc->bandstate[OTHERBANDUNIT(wlc)];
7984 /* init bss rates to the band specific default rate set */
7985 wlc_rateset_default(&bi->rateset, NULL, band->phytype, band->bandtype,
7986 false, RATE_MASK_FULL, (bool) N_ENAB(wlc->pub),
7987 CHSPEC_WLC_BW(chanspec), wlc->stf->txstreams);
7989 if (N_ENAB(wlc->pub))
7990 bi->flags |= WLC_BSS_HT;
7994 wlc_uint64_sub(u32 *a_high, u32 *a_low, u32 b_high, u32 b_low)
7996 if (b_low > *a_low) {
7997 /* low half needs a carry */
8005 mac80211_wlc_set_nrate(struct wlc_info *wlc, struct wlcband *cur_band,
8008 u8 stf = (int_val & NRATE_STF_MASK) >> NRATE_STF_SHIFT;
8009 u8 rate = int_val & NRATE_RATE_MASK;
8011 bool ismcs = ((int_val & NRATE_MCS_INUSE) == NRATE_MCS_INUSE);
8012 bool issgi = ((int_val & NRATE_SGI_MASK) >> NRATE_SGI_SHIFT);
8013 bool override_mcs_only = ((int_val & NRATE_OVERRIDE_MCS_ONLY)
8014 == NRATE_OVERRIDE_MCS_ONLY);
8018 return (ratespec_t) rate;
8021 /* validate the combination of rate/mcs/stf is allowed */
8022 if (N_ENAB(wlc->pub) && ismcs) {
8023 /* mcs only allowed when nmode */
8024 if (stf > PHY_TXC1_MODE_SDM) {
8025 WL_ERROR("wl%d: %s: Invalid stf\n",
8026 WLCWLUNIT(wlc), __func__);
8027 bcmerror = BCME_RANGE;
8031 /* mcs 32 is a special case, DUP mode 40 only */
8033 if (!CHSPEC_IS40(wlc->home_chanspec) ||
8034 ((stf != PHY_TXC1_MODE_SISO)
8035 && (stf != PHY_TXC1_MODE_CDD))) {
8036 WL_ERROR("wl%d: %s: Invalid mcs 32\n",
8037 WLCWLUNIT(wlc), __func__);
8038 bcmerror = BCME_RANGE;
8041 /* mcs > 7 must use stf SDM */
8042 } else if (rate > HIGHEST_SINGLE_STREAM_MCS) {
8043 /* mcs > 7 must use stf SDM */
8044 if (stf != PHY_TXC1_MODE_SDM) {
8045 WL_TRACE("wl%d: %s: enabling SDM mode for mcs %d\n",
8046 WLCWLUNIT(wlc), __func__, rate);
8047 stf = PHY_TXC1_MODE_SDM;
8050 /* MCS 0-7 may use SISO, CDD, and for phy_rev >= 3 STBC */
8051 if ((stf > PHY_TXC1_MODE_STBC) ||
8052 (!WLC_STBC_CAP_PHY(wlc)
8053 && (stf == PHY_TXC1_MODE_STBC))) {
8054 WL_ERROR("wl%d: %s: Invalid STBC\n",
8055 WLCWLUNIT(wlc), __func__);
8056 bcmerror = BCME_RANGE;
8060 } else if (IS_OFDM(rate)) {
8061 if ((stf != PHY_TXC1_MODE_CDD) && (stf != PHY_TXC1_MODE_SISO)) {
8062 WL_ERROR("wl%d: %s: Invalid OFDM\n",
8063 WLCWLUNIT(wlc), __func__);
8064 bcmerror = BCME_RANGE;
8067 } else if (IS_CCK(rate)) {
8068 if ((cur_band->bandtype != WLC_BAND_2G)
8069 || (stf != PHY_TXC1_MODE_SISO)) {
8070 WL_ERROR("wl%d: %s: Invalid CCK\n",
8071 WLCWLUNIT(wlc), __func__);
8072 bcmerror = BCME_RANGE;
8076 WL_ERROR("wl%d: %s: Unknown rate type\n",
8077 WLCWLUNIT(wlc), __func__);
8078 bcmerror = BCME_RANGE;
8081 /* make sure multiple antennae are available for non-siso rates */
8082 if ((stf != PHY_TXC1_MODE_SISO) && (wlc->stf->txstreams == 1)) {
8083 WL_ERROR("wl%d: %s: SISO antenna but !SISO request\n",
8084 WLCWLUNIT(wlc), __func__);
8085 bcmerror = BCME_RANGE;
8091 rspec |= RSPEC_MIMORATE;
8092 /* For STBC populate the STC field of the ratespec */
8093 if (stf == PHY_TXC1_MODE_STBC) {
8095 stc = 1; /* Nss for single stream is always 1 */
8096 rspec |= (stc << RSPEC_STC_SHIFT);
8100 rspec |= (stf << RSPEC_STF_SHIFT);
8102 if (override_mcs_only)
8103 rspec |= RSPEC_OVERRIDE_MCS_ONLY;
8106 rspec |= RSPEC_SHORT_GI;
8109 && !wlc_valid_rate(wlc, rspec, cur_band->bandtype, true)) {
8115 WL_ERROR("Hoark\n");
8119 /* formula: IDLE_BUSY_RATIO_X_16 = (100-duty_cycle)/duty_cycle*16 */
8121 wlc_duty_cycle_set(struct wlc_info *wlc, int duty_cycle, bool isOFDM,
8124 int idle_busy_ratio_x_16 = 0;
8126 isOFDM ? M_TX_IDLE_BUSY_RATIO_X_16_OFDM :
8127 M_TX_IDLE_BUSY_RATIO_X_16_CCK;
8128 if (duty_cycle > 100 || duty_cycle < 0) {
8129 WL_ERROR("wl%d: duty cycle value off limit\n", wlc->pub->unit);
8133 idle_busy_ratio_x_16 = (100 - duty_cycle) * 16 / duty_cycle;
8134 /* Only write to shared memory when wl is up */
8136 wlc_write_shm(wlc, offset, (u16) idle_busy_ratio_x_16);
8139 wlc->tx_duty_cycle_ofdm = (u16) duty_cycle;
8141 wlc->tx_duty_cycle_cck = (u16) duty_cycle;
8146 /* Read a single u16 from shared memory.
8147 * SHM 'offset' needs to be an even address
8149 u16 wlc_read_shm(struct wlc_info *wlc, uint offset)
8151 return wlc_bmac_read_shm(wlc->hw, offset);
8154 /* Write a single u16 to shared memory.
8155 * SHM 'offset' needs to be an even address
8157 void wlc_write_shm(struct wlc_info *wlc, uint offset, u16 v)
8159 wlc_bmac_write_shm(wlc->hw, offset, v);
8162 /* Set a range of shared memory to a value.
8163 * SHM 'offset' needs to be an even address and
8164 * Range length 'len' must be an even number of bytes
8166 void wlc_set_shm(struct wlc_info *wlc, uint offset, u16 v, int len)
8168 /* offset and len need to be even */
8169 ASSERT((offset & 1) == 0);
8170 ASSERT((len & 1) == 0);
8175 wlc_bmac_set_shm(wlc->hw, offset, v, len);
8178 /* Copy a buffer to shared memory.
8179 * SHM 'offset' needs to be an even address and
8180 * Buffer length 'len' must be an even number of bytes
8182 void wlc_copyto_shm(struct wlc_info *wlc, uint offset, const void *buf, int len)
8184 /* offset and len need to be even */
8185 ASSERT((offset & 1) == 0);
8186 ASSERT((len & 1) == 0);
8190 wlc_bmac_copyto_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
8194 /* Copy from shared memory to a buffer.
8195 * SHM 'offset' needs to be an even address and
8196 * Buffer length 'len' must be an even number of bytes
8198 void wlc_copyfrom_shm(struct wlc_info *wlc, uint offset, void *buf, int len)
8200 /* offset and len need to be even */
8201 ASSERT((offset & 1) == 0);
8202 ASSERT((len & 1) == 0);
8207 wlc_bmac_copyfrom_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
8210 /* wrapper BMAC functions to for HIGH driver access */
8211 void wlc_mctrl(struct wlc_info *wlc, u32 mask, u32 val)
8213 wlc_bmac_mctrl(wlc->hw, mask, val);
8216 void wlc_corereset(struct wlc_info *wlc, u32 flags)
8218 wlc_bmac_corereset(wlc->hw, flags);
8221 void wlc_mhf(struct wlc_info *wlc, u8 idx, u16 mask, u16 val, int bands)
8223 wlc_bmac_mhf(wlc->hw, idx, mask, val, bands);
8226 u16 wlc_mhf_get(struct wlc_info *wlc, u8 idx, int bands)
8228 return wlc_bmac_mhf_get(wlc->hw, idx, bands);
8231 int wlc_xmtfifo_sz_get(struct wlc_info *wlc, uint fifo, uint *blocks)
8233 return wlc_bmac_xmtfifo_sz_get(wlc->hw, fifo, blocks);
8236 void wlc_write_template_ram(struct wlc_info *wlc, int offset, int len,
8239 wlc_bmac_write_template_ram(wlc->hw, offset, len, buf);
8242 void wlc_write_hw_bcntemplates(struct wlc_info *wlc, void *bcn, int len,
8245 wlc_bmac_write_hw_bcntemplates(wlc->hw, bcn, len, both);
8249 wlc_set_addrmatch(struct wlc_info *wlc, int match_reg_offset,
8252 wlc_bmac_set_addrmatch(wlc->hw, match_reg_offset, addr);
8253 if (match_reg_offset == RCM_BSSID_OFFSET)
8254 memcpy(wlc->cfg->BSSID, addr, ETH_ALEN);
8257 void wlc_set_rcmta(struct wlc_info *wlc, int idx, const u8 *addr)
8259 wlc_bmac_set_rcmta(wlc->hw, idx, addr);
8262 void wlc_read_tsf(struct wlc_info *wlc, u32 *tsf_l_ptr, u32 *tsf_h_ptr)
8264 wlc_bmac_read_tsf(wlc->hw, tsf_l_ptr, tsf_h_ptr);
8267 void wlc_set_cwmin(struct wlc_info *wlc, u16 newmin)
8269 wlc->band->CWmin = newmin;
8270 wlc_bmac_set_cwmin(wlc->hw, newmin);
8273 void wlc_set_cwmax(struct wlc_info *wlc, u16 newmax)
8275 wlc->band->CWmax = newmax;
8276 wlc_bmac_set_cwmax(wlc->hw, newmax);
8279 void wlc_fifoerrors(struct wlc_info *wlc)
8282 wlc_bmac_fifoerrors(wlc->hw);
8285 /* Search mem rw utilities */
8287 void wlc_pllreq(struct wlc_info *wlc, bool set, mbool req_bit)
8289 wlc_bmac_pllreq(wlc->hw, set, req_bit);
8292 void wlc_reset_bmac_done(struct wlc_info *wlc)
8296 void wlc_ht_mimops_cap_update(struct wlc_info *wlc, u8 mimops_mode)
8298 wlc->ht_cap.cap_info &= ~IEEE80211_HT_CAP_SM_PS;
8299 wlc->ht_cap.cap_info |= (mimops_mode << IEEE80211_HT_CAP_SM_PS_SHIFT);
8301 if (AP_ENAB(wlc->pub) && wlc->clk) {
8302 wlc_update_beacon(wlc);
8303 wlc_update_probe_resp(wlc, true);
8307 /* check for the particular priority flow control bit being set */
8309 wlc_txflowcontrol_prio_isset(struct wlc_info *wlc, struct wlc_txq_info *q,
8314 if (prio == ALLPRIO) {
8315 prio_mask = TXQ_STOP_FOR_PRIOFC_MASK;
8317 ASSERT(prio >= 0 && prio <= MAXPRIO);
8318 prio_mask = NBITVAL(prio);
8321 return (q->stopped & prio_mask) == prio_mask;
8324 /* propogate the flow control to all interfaces using the given tx queue */
8325 void wlc_txflowcontrol(struct wlc_info *wlc, struct wlc_txq_info *qi,
8331 WL_TRACE("%s: flow control kicks in\n", __func__);
8333 if (prio == ALLPRIO) {
8334 prio_bits = TXQ_STOP_FOR_PRIOFC_MASK;
8336 ASSERT(prio >= 0 && prio <= MAXPRIO);
8337 prio_bits = NBITVAL(prio);
8340 cur_bits = qi->stopped & prio_bits;
8342 /* Check for the case of no change and return early
8343 * Otherwise update the bit and continue
8346 if (cur_bits == prio_bits) {
8349 mboolset(qi->stopped, prio_bits);
8351 if (cur_bits == 0) {
8354 mboolclr(qi->stopped, prio_bits);
8357 /* If there is a flow control override we will not change the external
8358 * flow control state.
8360 if (qi->stopped & ~TXQ_STOP_FOR_PRIOFC_MASK) {
8364 wlc_txflowcontrol_signal(wlc, qi, on, prio);
8368 wlc_txflowcontrol_override(struct wlc_info *wlc, struct wlc_txq_info *qi,
8369 bool on, uint override)
8373 ASSERT(override != 0);
8374 ASSERT((override & TXQ_STOP_FOR_PRIOFC_MASK) == 0);
8376 prev_override = (qi->stopped & ~TXQ_STOP_FOR_PRIOFC_MASK);
8378 /* Update the flow control bits and do an early return if there is
8379 * no change in the external flow control state.
8382 mboolset(qi->stopped, override);
8383 /* if there was a previous override bit on, then setting this
8384 * makes no difference.
8386 if (prev_override) {
8390 wlc_txflowcontrol_signal(wlc, qi, ON, ALLPRIO);
8392 mboolclr(qi->stopped, override);
8393 /* clearing an override bit will only make a difference for
8394 * flow control if it was the only bit set. For any other
8395 * override setting, just return
8397 if (prev_override != override) {
8401 if (qi->stopped == 0) {
8402 wlc_txflowcontrol_signal(wlc, qi, OFF, ALLPRIO);
8406 for (prio = MAXPRIO; prio >= 0; prio--) {
8407 if (!mboolisset(qi->stopped, NBITVAL(prio)))
8408 wlc_txflowcontrol_signal(wlc, qi, OFF,
8415 static void wlc_txflowcontrol_reset(struct wlc_info *wlc)
8417 struct wlc_txq_info *qi;
8419 for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
8421 wlc_txflowcontrol_signal(wlc, qi, OFF, ALLPRIO);
8428 wlc_txflowcontrol_signal(struct wlc_info *wlc, struct wlc_txq_info *qi, bool on,
8431 struct wlc_if *wlcif;
8433 for (wlcif = wlc->wlcif_list; wlcif != NULL; wlcif = wlcif->next) {
8434 if (wlcif->qi == qi && wlcif->flags & WLC_IF_LINKED)
8435 wl_txflowcontrol(wlc->wl, wlcif->wlif, on, prio);
8439 static struct wlc_txq_info *wlc_txq_alloc(struct wlc_info *wlc,
8440 struct osl_info *osh)
8442 struct wlc_txq_info *qi, *p;
8444 qi = wlc_calloc(wlc->pub->unit, sizeof(struct wlc_txq_info));
8447 * Have enough room for control packets along with HI watermark
8448 * Also, add room to txq for total psq packets if all the SCBs
8449 * leave PS mode. The watermark for flowcontrol to OS packets
8450 * will remain the same
8452 pktq_init(&qi->q, WLC_PREC_COUNT,
8453 (2 * wlc->pub->tunables->datahiwat) + PKTQ_LEN_DEFAULT
8454 + wlc->pub->psq_pkts_total);
8456 /* add this queue to the the global list */
8459 wlc->tx_queues = qi;
8461 while (p->next != NULL)
8469 static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh,
8470 struct wlc_txq_info *qi)
8472 struct wlc_txq_info *p;
8477 /* remove the queue from the linked list */
8480 wlc->tx_queues = p->next;
8482 while (p != NULL && p->next != qi)
8484 ASSERT(p->next == qi);
8486 p->next = p->next->next;
8493 * Flag 'scan in progress' to withold dynamic phy calibration
8495 void wlc_scan_start(struct wlc_info *wlc)
8497 wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, true);
8500 void wlc_scan_stop(struct wlc_info *wlc)
8502 wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, false);
8505 void wlc_associate_upd(struct wlc_info *wlc, bool state)
8507 wlc->pub->associated = state;
8508 wlc->cfg->associated = state;