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>
26 #include <bcmendian.h>
27 #include <proto/wpa.h>
39 #include <wlc_bsscfg.h>
40 #include <wlc_channel.h>
41 #include <wlc_event.h>
42 #include <wlc_mac80211.h>
45 #include <wlc_phy_hal.h>
46 #include <wlc_phy_shim.h>
47 #include <wlc_antsel.h>
49 #include <wlc_ampdu.h>
50 #include <wlc_event.h>
51 #include <wl_export.h>
52 #include "d11ucode_ext.h"
53 #include <wlc_alloc.h>
54 #include <net/mac80211.h>
59 * buffer length needed for wlc_format_ssid
60 * 32 SSID chars, max of 4 chars for each SSID char "\xFF", plus NULL.
62 #define SSID_FMT_BUF_LEN ((4 * DOT11_MAX_SSID_LEN) + 1)
64 #define TIMER_INTERVAL_WATCHDOG 1000 /* watchdog timer, in unit of ms */
65 #define TIMER_INTERVAL_RADIOCHK 800 /* radio monitor timer, in unit of ms */
67 #ifndef WLC_MPC_MAX_DELAYCNT
68 #define WLC_MPC_MAX_DELAYCNT 10 /* Max MPC timeout, in unit of watchdog */
70 #define WLC_MPC_MIN_DELAYCNT 1 /* Min MPC timeout, in unit of watchdog */
71 #define WLC_MPC_THRESHOLD 3 /* MPC count threshold level */
73 #define BEACON_INTERVAL_DEFAULT 100 /* beacon interval, in unit of 1024TU */
74 #define DTIM_INTERVAL_DEFAULT 3 /* DTIM interval, in unit of beacon interval */
76 /* Scale down delays to accommodate QT slow speed */
77 #define BEACON_INTERVAL_DEF_QT 20 /* beacon interval, in unit of 1024TU */
78 #define DTIM_INTERVAL_DEF_QT 1 /* DTIM interval, in unit of beacon interval */
80 #define TBTT_ALIGN_LEEWAY_US 100 /* min leeway before first TBTT in us */
83 * driver maintains internal 'tick'(wlc->pub->now) which increments in 1s OS timer(soft
84 * watchdog) it is not a wall clock and won't increment when driver is in "down" state
85 * this low resolution driver tick can be used for maintenance tasks such as phy
86 * calibration and scb update
89 /* watchdog trigger mode: OSL timer or TBTT */
90 #define WLC_WATCHDOG_TBTT(wlc) \
91 (wlc->stas_associated > 0 && wlc->PM != PM_OFF && wlc->pub->align_wd_tbtt)
93 /* To inform the ucode of the last mcast frame posted so that it can clear moredata bit */
94 #define BCMCFID(wlc, fid) wlc_bmac_write_shm((wlc)->hw, M_BCMC_FID, (fid))
96 #define WLC_WAR16165(wlc) (wlc->pub->sih->bustype == PCI_BUS && \
97 (!AP_ENAB(wlc->pub)) && (wlc->war16165))
107 /* Find basic rate for a given rate */
108 #define WLC_BASIC_RATE(wlc, rspec) (IS_MCS(rspec) ? \
109 (wlc)->band->basic_rate[mcs_table[rspec & RSPEC_RATE_MASK].leg_ofdm] : \
110 (wlc)->band->basic_rate[rspec & RSPEC_RATE_MASK])
112 #define FRAMETYPE(r, mimoframe) (IS_MCS(r) ? mimoframe : (IS_CCK(r) ? FT_CCK : FT_OFDM))
114 #define RFDISABLE_DEFAULT 10000000 /* rfdisable delay timer 500 ms, runs of ALP clock */
116 #define WLC_TEMPSENSE_PERIOD 10 /* 10 second timeout */
118 #define SCAN_IN_PROGRESS(x) 0
120 #define EPI_VERSION_NUM 0x054b0b00
123 /* pointer to most recently allocated wl/wlc */
124 static struct wlc_info *wlc_info_dbg = (struct wlc_info *) (NULL);
129 /* Parameter IDs, for use only internally to wlc -- in the wlc_iovars
130 * table and by the wlc_doiovar() function. No ordering is imposed:
131 * the table is keyed by name, and the function uses a switch.
136 IOV_BCN_LI_BCN, /* Beacon listen interval in # of beacons */
137 IOV_LAST /* In case of a need to check max ID number */
140 const bcm_iovar_t wlc_iovars[] = {
141 {"mpc", IOV_MPC, (IOVF_OPEN_ALLOW), IOVT_BOOL, 0},
142 {"qtxpower", IOV_QTXPOWER, (IOVF_WHL | IOVF_OPEN_ALLOW), IOVT_UINT32,
144 {"bcn_li_bcn", IOV_BCN_LI_BCN, 0, IOVT_UINT8, 0},
148 const u8 prio2fifo[NUMPRIO] = {
149 TX_AC_BE_FIFO, /* 0 BE AC_BE Best Effort */
150 TX_AC_BK_FIFO, /* 1 BK AC_BK Background */
151 TX_AC_BK_FIFO, /* 2 -- AC_BK Background */
152 TX_AC_BE_FIFO, /* 3 EE AC_BE Best Effort */
153 TX_AC_VI_FIFO, /* 4 CL AC_VI Video */
154 TX_AC_VI_FIFO, /* 5 VI AC_VI Video */
155 TX_AC_VO_FIFO, /* 6 VO AC_VO Voice */
156 TX_AC_VO_FIFO /* 7 NC AC_VO Voice */
159 /* precedences numbers for wlc queues. These are twice as may levels as
161 * Odd numbers are used for HI priority traffic at same precedence levels
162 * These constants are used ONLY by wlc_prio2prec_map. Do not use them elsewhere.
164 #define _WLC_PREC_NONE 0 /* None = - */
165 #define _WLC_PREC_BK 2 /* BK - Background */
166 #define _WLC_PREC_BE 4 /* BE - Best-effort */
167 #define _WLC_PREC_EE 6 /* EE - Excellent-effort */
168 #define _WLC_PREC_CL 8 /* CL - Controlled Load */
169 #define _WLC_PREC_VI 10 /* Vi - Video */
170 #define _WLC_PREC_VO 12 /* Vo - Voice */
171 #define _WLC_PREC_NC 14 /* NC - Network Control */
173 /* 802.1D Priority to precedence queue mapping */
174 const u8 wlc_prio2prec_map[] = {
175 _WLC_PREC_BE, /* 0 BE - Best-effort */
176 _WLC_PREC_BK, /* 1 BK - Background */
177 _WLC_PREC_NONE, /* 2 None = - */
178 _WLC_PREC_EE, /* 3 EE - Excellent-effort */
179 _WLC_PREC_CL, /* 4 CL - Controlled Load */
180 _WLC_PREC_VI, /* 5 Vi - Video */
181 _WLC_PREC_VO, /* 6 Vo - Voice */
182 _WLC_PREC_NC, /* 7 NC - Network Control */
185 /* Sanity check for tx_prec_map and fifo synchup
186 * Either there are some packets pending for the fifo, else if fifo is empty then
187 * all the corresponding precmap bits should be set
189 #define WLC_TX_FIFO_CHECK(wlc, fifo) (TXPKTPENDGET((wlc), (fifo)) || \
190 (TXPKTPENDGET((wlc), (fifo)) == 0 && \
191 ((wlc)->tx_prec_map & (wlc)->fifo2prec_map[(fifo)]) == \
192 (wlc)->fifo2prec_map[(fifo)]))
194 /* TX FIFO number to WME/802.1E Access Category */
195 const u8 wme_fifo2ac[] = { AC_BK, AC_BE, AC_VI, AC_VO, AC_BE, AC_BE };
197 /* WME/802.1E Access Category to TX FIFO number */
198 static const u8 wme_ac2fifo[] = { 1, 0, 2, 3 };
200 static bool in_send_q = false;
202 /* Shared memory location index for various AC params */
203 #define wme_shmemacindex(ac) wme_ac2fifo[ac]
206 static const char *fifo_names[] = {
207 "AC_BK", "AC_BE", "AC_VI", "AC_VO", "BCMC", "ATIM" };
208 const char *aci_names[] = { "AC_BE", "AC_BK", "AC_VI", "AC_VO" };
211 static const u8 acbitmap2maxprio[] = {
212 PRIO_8021D_BE, PRIO_8021D_BE, PRIO_8021D_BK, PRIO_8021D_BK,
213 PRIO_8021D_VI, PRIO_8021D_VI, PRIO_8021D_VI, PRIO_8021D_VI,
214 PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO,
215 PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO
218 /* currently the best mechanism for determining SIFS is the band in use */
219 #define SIFS(band) ((band)->bandtype == WLC_BAND_5G ? APHY_SIFS_TIME : BPHY_SIFS_TIME);
221 /* value for # replay counters currently supported */
222 #define WLC_REPLAY_CNTRS_VALUE WPA_CAP_16_REPLAY_CNTRS
224 /* local prototypes */
225 static u16 BCMFASTPATH wlc_d11hdrs_mac80211(struct wlc_info *wlc,
226 struct ieee80211_hw *hw,
228 struct scb *scb, uint frag,
229 uint nfrags, uint queue,
232 ratespec_t rspec_override);
234 static void wlc_bss_default_init(struct wlc_info *wlc);
235 static void wlc_ucode_mac_upd(struct wlc_info *wlc);
236 static ratespec_t mac80211_wlc_set_nrate(struct wlc_info *wlc,
237 struct wlcband *cur_band, u32 int_val);
238 static void wlc_tx_prec_map_init(struct wlc_info *wlc);
239 static void wlc_watchdog(void *arg);
240 static void wlc_watchdog_by_timer(void *arg);
241 static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg);
242 static int wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val,
243 const bcm_iovar_t *vi);
244 static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc);
246 /* send and receive */
247 static wlc_txq_info_t *wlc_txq_alloc(struct wlc_info *wlc,
248 struct osl_info *osh);
249 static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh,
251 static void wlc_txflowcontrol_signal(struct wlc_info *wlc, wlc_txq_info_t *qi,
253 static void wlc_txflowcontrol_reset(struct wlc_info *wlc);
254 static u16 wlc_compute_airtime(struct wlc_info *wlc, ratespec_t rspec,
256 static void wlc_compute_cck_plcp(ratespec_t rate, uint length, u8 *plcp);
257 static void wlc_compute_ofdm_plcp(ratespec_t rate, uint length, u8 *plcp);
258 static void wlc_compute_mimo_plcp(ratespec_t rate, uint length, u8 *plcp);
259 static u16 wlc_compute_frame_dur(struct wlc_info *wlc, ratespec_t rate,
260 u8 preamble_type, uint next_frag_len);
261 static void wlc_recvctl(struct wlc_info *wlc, struct osl_info *osh,
262 d11rxhdr_t *rxh, struct sk_buff *p);
263 static uint wlc_calc_frame_len(struct wlc_info *wlc, ratespec_t rate,
264 u8 preamble_type, uint dur);
265 static uint wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rate,
267 static uint wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rate,
269 /* interrupt, up/down, band */
270 static void wlc_setband(struct wlc_info *wlc, uint bandunit);
271 static chanspec_t wlc_init_chanspec(struct wlc_info *wlc);
272 static void wlc_bandinit_ordered(struct wlc_info *wlc, chanspec_t chanspec);
273 static void wlc_bsinit(struct wlc_info *wlc);
274 static int wlc_duty_cycle_set(struct wlc_info *wlc, int duty_cycle, bool isOFDM,
276 static void wlc_radio_hwdisable_upd(struct wlc_info *wlc);
277 static bool wlc_radio_monitor_start(struct wlc_info *wlc);
278 static void wlc_radio_timer(void *arg);
279 static void wlc_radio_enable(struct wlc_info *wlc);
280 static void wlc_radio_upd(struct wlc_info *wlc);
282 /* scan, association, BSS */
283 static uint wlc_calc_ba_time(struct wlc_info *wlc, ratespec_t rate,
285 static void wlc_update_mimo_band_bwcap(struct wlc_info *wlc, u8 bwcap);
286 static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val);
287 static void wlc_ht_update_ldpc(struct wlc_info *wlc, s8 val);
288 static void wlc_war16165(struct wlc_info *wlc, bool tx);
290 static void wlc_process_eventq(void *arg);
291 static void wlc_wme_retries_write(struct wlc_info *wlc);
292 static bool wlc_attach_stf_ant_init(struct wlc_info *wlc);
293 static uint wlc_attach_module(struct wlc_info *wlc);
294 static void wlc_detach_module(struct wlc_info *wlc);
295 static void wlc_timers_deinit(struct wlc_info *wlc);
296 static void wlc_down_led_upd(struct wlc_info *wlc);
297 static uint wlc_down_del_timer(struct wlc_info *wlc);
298 static void wlc_ofdm_rateset_war(struct wlc_info *wlc);
299 static int _wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
300 struct wlc_if *wlcif);
303 void wlc_get_rcmta(struct wlc_info *wlc, int idx, struct ether_addr *addr)
305 d11regs_t *regs = wlc->regs;
307 struct osl_info *osh;
309 WL_TRACE("wl%d: %s\n", WLCWLUNIT(wlc), __func__);
311 ASSERT(wlc->pub->corerev > 4);
315 W_REG(osh, ®s->objaddr, (OBJADDR_RCMTA_SEL | (idx * 2)));
316 (void)R_REG(osh, ®s->objaddr);
317 v32 = R_REG(osh, ®s->objdata);
318 addr->octet[0] = (u8) v32;
319 addr->octet[1] = (u8) (v32 >> 8);
320 addr->octet[2] = (u8) (v32 >> 16);
321 addr->octet[3] = (u8) (v32 >> 24);
322 W_REG(osh, ®s->objaddr, (OBJADDR_RCMTA_SEL | ((idx * 2) + 1)));
323 (void)R_REG(osh, ®s->objaddr);
324 v32 = R_REG(osh, (volatile u16 *)®s->objdata);
325 addr->octet[4] = (u8) v32;
326 addr->octet[5] = (u8) (v32 >> 8);
328 #endif /* defined(BCMDBG) */
330 /* keep the chip awake if needed */
331 bool wlc_stay_awake(struct wlc_info *wlc)
336 /* conditions under which the PM bit should be set in outgoing frames and STAY_AWAKE is meaningful
338 bool wlc_ps_allowed(struct wlc_info *wlc)
343 /* disallow PS when one of the following global conditions meets */
344 if (!wlc->pub->associated || !wlc->PMenabled || wlc->PM_override)
347 /* disallow PS when one of these meets when not scanning */
348 if (!wlc->PMblocked) {
349 if (AP_ACTIVE(wlc) || wlc->monitor)
353 FOREACH_AS_STA(wlc, idx, cfg) {
354 /* disallow PS when one of the following bsscfg specific conditions meets */
355 if (!cfg->BSS || !WLC_PORTOPEN(cfg))
358 if (!cfg->dtim_programmed)
365 void wlc_reset(struct wlc_info *wlc)
367 WL_TRACE("wl%d: wlc_reset\n", wlc->pub->unit);
369 wlc->check_for_unaligned_tbtt = false;
371 /* slurp up hw mac counters before core reset */
372 if (WLC_UPDATE_STATS(wlc)) {
375 /* reset our snapshot of macstat counters */
376 memset((char *)wlc->core->macstat_snapshot, 0,
380 wlc_bmac_reset(wlc->hw);
381 wlc_ampdu_reset(wlc->ampdu);
386 void wlc_fatal_error(struct wlc_info *wlc)
388 WL_ERROR("wl%d: fatal error, reinitializing\n", wlc->pub->unit);
392 /* Return the channel the driver should initialize during wlc_init.
393 * the channel may have to be changed from the currently configured channel
394 * if other configurations are in conflict (bandlocked, 11n mode disabled,
395 * invalid channel for current country, etc.)
397 static chanspec_t wlc_init_chanspec(struct wlc_info *wlc)
399 chanspec_t chanspec =
400 1 | WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE |
403 /* make sure the channel is on the supported band if we are band-restricted */
404 if (wlc->bandlocked || NBANDS(wlc) == 1) {
405 ASSERT(CHSPEC_WLCBANDUNIT(chanspec) == wlc->band->bandunit);
407 ASSERT(wlc_valid_chanspec_db(wlc->cmi, chanspec));
411 struct scb global_scb;
413 static void wlc_init_scb(struct wlc_info *wlc, struct scb *scb)
416 scb->flags = SCB_WMECAP | SCB_HTCAP;
417 for (i = 0; i < NUMPRIO; i++)
421 void wlc_init(struct wlc_info *wlc)
426 wlc_bsscfg_t *bsscfg;
429 WL_TRACE("wl%d: wlc_init\n", wlc->pub->unit);
433 /* This will happen if a big-hammer was executed. In that case, we want to go back
434 * to the channel that we were on and not new channel
436 if (wlc->pub->associated)
437 chanspec = wlc->home_chanspec;
439 chanspec = wlc_init_chanspec(wlc);
441 wlc_bmac_init(wlc->hw, chanspec, mute);
443 wlc->seckeys = wlc_bmac_read_shm(wlc->hw, M_SECRXKEYS_PTR) * 2;
444 if (D11REV_GE(wlc->pub->corerev, 15) && (wlc->machwcap & MCAP_TKIPMIC))
446 wlc_bmac_read_shm(wlc->hw, M_TKMICKEYS_PTR) * 2;
448 /* update beacon listen interval */
451 (u8) (wlc_bmac_read_shm(wlc->hw, M_NOSLPZNATDTIM) >> 10);
452 ASSERT(wlc->bcn_wait_prd > 0);
454 /* the world is new again, so is our reported rate */
455 wlc_reprate_init(wlc);
457 /* write ethernet address to core */
458 FOREACH_BSS(wlc, i, bsscfg) {
460 wlc_set_bssid(bsscfg);
463 /* Update tsf_cfprep if associated and up */
464 if (wlc->pub->associated) {
465 FOREACH_BSS(wlc, i, bsscfg) {
469 /* get beacon period from bsscfg and convert to uS */
470 bi = bsscfg->current_bss->beacon_period << 10;
471 /* update the tsf_cfprep register */
472 /* since init path would reset to default value */
473 W_REG(wlc->osh, ®s->tsf_cfprep,
474 (bi << CFPREP_CBI_SHIFT));
476 /* Update maccontrol PM related bits */
477 wlc_set_ps_ctrl(wlc);
484 wlc_key_hw_init_all(wlc);
486 wlc_bandinit_ordered(wlc, chanspec);
488 wlc_init_scb(wlc, &global_scb);
490 /* init probe response timeout */
491 wlc_write_shm(wlc, M_PRS_MAXTIME, wlc->prb_resp_timeout);
493 /* init max burst txop (framebursting) */
494 wlc_write_shm(wlc, M_MBURST_TXOP,
496 _rifs ? (EDCF_AC_VO_TXOP_AP << 5) : MAXFRAMEBURST_TXOP));
498 /* initialize maximum allowed duty cycle */
499 wlc_duty_cycle_set(wlc, wlc->tx_duty_cycle_ofdm, true, true);
500 wlc_duty_cycle_set(wlc, wlc->tx_duty_cycle_cck, false, true);
502 /* Update some shared memory locations related to max AMPDU size allowed to received */
503 wlc_ampdu_shm_upd(wlc->ampdu);
505 /* band-specific inits */
508 /* Enable EDCF mode (while the MAC is suspended) */
509 if (EDCF_ENAB(wlc->pub)) {
510 OR_REG(wlc->osh, ®s->ifs_ctl, IFS_USEEDCF);
511 wlc_edcf_setparams(wlc->cfg, false);
514 /* Init precedence maps for empty FIFOs */
515 wlc_tx_prec_map_init(wlc);
517 /* read the ucode version if we have not yet done so */
518 if (wlc->ucode_rev == 0) {
520 wlc_read_shm(wlc, M_BOM_REV_MAJOR) << NBITS(u16);
521 wlc->ucode_rev |= wlc_read_shm(wlc, M_BOM_REV_MINOR);
524 /* ..now really unleash hell (allow the MAC out of suspend) */
527 /* clear tx flow control */
528 wlc_txflowcontrol_reset(wlc);
530 /* clear tx data fifo suspends */
531 wlc->tx_suspended = false;
533 /* enable the RF Disable Delay timer */
534 if (D11REV_GE(wlc->pub->corerev, 10))
535 W_REG(wlc->osh, &wlc->regs->rfdisabledly, RFDISABLE_DEFAULT);
537 /* initialize mpc delay */
538 wlc->mpc_delay_off = wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
541 * Initialize WME parameters; if they haven't been set by some other
542 * mechanism (IOVar, etc) then read them from the hardware.
544 if (WLC_WME_RETRY_SHORT_GET(wlc, 0) == 0) { /* Unintialized; read from HW */
548 for (ac = 0; ac < AC_COUNT; ac++) {
549 wlc->wme_retries[ac] =
550 wlc_read_shm(wlc, M_AC_TXLMT_ADDR(ac));
555 void wlc_mac_bcn_promisc_change(struct wlc_info *wlc, bool promisc)
557 wlc->bcnmisc_monitor = promisc;
558 wlc_mac_bcn_promisc(wlc);
561 void wlc_mac_bcn_promisc(struct wlc_info *wlc)
563 if ((AP_ENAB(wlc->pub) && (N_ENAB(wlc->pub) || wlc->band->gmode)) ||
564 wlc->bcnmisc_ibss || wlc->bcnmisc_scan || wlc->bcnmisc_monitor)
565 wlc_mctrl(wlc, MCTL_BCNS_PROMISC, MCTL_BCNS_PROMISC);
567 wlc_mctrl(wlc, MCTL_BCNS_PROMISC, 0);
570 /* set or clear maccontrol bits MCTL_PROMISC and MCTL_KEEPCONTROL */
571 void wlc_mac_promisc(struct wlc_info *wlc)
573 u32 promisc_bits = 0;
575 /* promiscuous mode just sets MCTL_PROMISC
576 * Note: APs get all BSS traffic without the need to set the MCTL_PROMISC bit
577 * since all BSS data traffic is directed at the AP
579 if (PROMISC_ENAB(wlc->pub) && !AP_ENAB(wlc->pub) && !wlc->wet)
580 promisc_bits |= MCTL_PROMISC;
582 /* monitor mode needs both MCTL_PROMISC and MCTL_KEEPCONTROL
583 * Note: monitor mode also needs MCTL_BCNS_PROMISC, but that is
584 * handled in wlc_mac_bcn_promisc()
586 if (MONITOR_ENAB(wlc))
587 promisc_bits |= MCTL_PROMISC | MCTL_KEEPCONTROL;
589 wlc_mctrl(wlc, MCTL_PROMISC | MCTL_KEEPCONTROL, promisc_bits);
592 /* check if hps and wake states of sw and hw are in sync */
593 bool wlc_ps_check(struct wlc_info *wlc)
599 if (!AP_ACTIVE(wlc)) {
601 tmp = R_REG(wlc->osh, &wlc->regs->maccontrol);
603 /* If deviceremoved is detected, then don't take any action as this can be called
604 * in any context. Assume that caller will take care of the condition. This is just
607 if (tmp == 0xffffffff) {
608 WL_ERROR("wl%d: %s: dead chip\n",
609 wlc->pub->unit, __func__);
610 return DEVICEREMOVED(wlc);
613 hps = PS_ALLOWED(wlc);
615 if (hps != ((tmp & MCTL_HPS) != 0)) {
618 WL_ERROR("wl%d: hps not sync, sw %d, maccontrol 0x%x\n",
619 wlc->pub->unit, hps, tmp);
620 FOREACH_BSS(wlc, idx, cfg) {
621 if (!BSSCFG_STA(cfg))
627 /* For a monolithic build the wake check can be exact since it looks at wake
628 * override bits. The MCTL_WAKE bit should match the 'wake' value.
630 wake = STAY_AWAKE(wlc) || wlc->hw->wake_override;
631 wake_ok = (wake == ((tmp & MCTL_WAKE) != 0));
632 if (hps && !wake_ok) {
633 WL_ERROR("wl%d: wake not sync, sw %d maccontrol 0x%x\n",
634 wlc->pub->unit, wake, tmp);
642 /* push sw hps and wake state through hardware */
643 void wlc_set_ps_ctrl(struct wlc_info *wlc)
649 hps = PS_ALLOWED(wlc);
650 wake = hps ? (STAY_AWAKE(wlc)) : true;
652 WL_TRACE("wl%d: wlc_set_ps_ctrl: hps %d wake %d\n",
653 wlc->pub->unit, hps, wake);
655 v1 = R_REG(wlc->osh, &wlc->regs->maccontrol);
662 wlc_mctrl(wlc, MCTL_WAKE | MCTL_HPS, v2);
664 awake_before = ((v1 & MCTL_WAKE) || ((v1 & MCTL_HPS) == 0));
666 if (wake && !awake_before)
667 wlc_bmac_wait_for_wake(wlc->hw);
672 * Write this BSS config's MAC address to core.
673 * Updates RXE match engine.
675 int wlc_set_mac(wlc_bsscfg_t *cfg)
678 struct wlc_info *wlc = cfg->wlc;
680 if (cfg == wlc->cfg) {
681 /* enter the MAC addr into the RXE match registers */
682 wlc_set_addrmatch(wlc, RCM_MAC_OFFSET, &cfg->cur_etheraddr);
685 wlc_ampdu_macaddr_upd(wlc);
690 /* Write the BSS config's BSSID address to core (set_bssid in d11procs.tcl).
691 * Updates RXE match engine.
693 void wlc_set_bssid(wlc_bsscfg_t *cfg)
695 struct wlc_info *wlc = cfg->wlc;
697 /* if primary config, we need to update BSSID in RXE match registers */
698 if (cfg == wlc->cfg) {
699 wlc_set_addrmatch(wlc, RCM_BSSID_OFFSET, &cfg->BSSID);
701 #ifdef SUPPORT_HWKEYS
702 else if (BSSCFG_STA(cfg) && cfg->BSS) {
703 wlc_rcmta_add_bssid(wlc, cfg);
709 * Suspend the the MAC and update the slot timing
710 * for standard 11b/g (20us slots) or shortslot 11g (9us slots).
712 void wlc_switch_shortslot(struct wlc_info *wlc, bool shortslot)
717 ASSERT(wlc->band->gmode);
719 /* use the override if it is set */
720 if (wlc->shortslot_override != WLC_SHORTSLOT_AUTO)
721 shortslot = (wlc->shortslot_override == WLC_SHORTSLOT_ON);
723 if (wlc->shortslot == shortslot)
726 wlc->shortslot = shortslot;
728 /* update the capability based on current shortslot mode */
729 FOREACH_BSS(wlc, idx, cfg) {
730 if (!cfg->associated)
732 cfg->current_bss->capability &= ~DOT11_CAP_SHORTSLOT;
734 cfg->current_bss->capability |= DOT11_CAP_SHORTSLOT;
737 wlc_bmac_set_shortslot(wlc->hw, shortslot);
740 static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc)
745 local = WLC_TXPWR_MAX;
746 if (wlc->pub->associated &&
747 (wf_chspec_ctlchan(wlc->chanspec) ==
748 wf_chspec_ctlchan(wlc->home_chanspec))) {
750 /* get the local power constraint if we are on the AP's
751 * channel [802.11h, 7.3.2.13]
753 /* Clamp the value between 0 and WLC_TXPWR_MAX w/o overflowing the target */
755 (wlc->txpwr_local_max -
756 wlc->txpwr_local_constraint) * WLC_TXPWR_DB_FACTOR;
757 if (local_max > 0 && local_max < WLC_TXPWR_MAX)
758 return (u8) local_max;
766 /* propagate home chanspec to all bsscfgs in case bsscfg->current_bss->chanspec is referenced */
767 void wlc_set_home_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
769 if (wlc->home_chanspec != chanspec) {
773 wlc->home_chanspec = chanspec;
775 FOREACH_BSS(wlc, idx, cfg) {
776 if (!cfg->associated)
778 cfg->target_bss->chanspec = chanspec;
779 cfg->current_bss->chanspec = chanspec;
785 static void wlc_set_phy_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
787 /* Save our copy of the chanspec */
788 wlc->chanspec = chanspec;
790 /* Set the chanspec and power limits for this locale after computing
791 * any 11h local tx power constraints.
793 wlc_channel_set_chanspec(wlc->cmi, chanspec,
794 wlc_local_constraint_qdbm(wlc));
796 if (wlc->stf->ss_algosel_auto)
797 wlc_stf_ss_algo_channel_get(wlc, &wlc->stf->ss_algo_channel,
800 wlc_stf_ss_update(wlc, wlc->band);
804 void wlc_set_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
807 bool switchband = false;
808 chanspec_t old_chanspec = wlc->chanspec;
810 if (!wlc_valid_chanspec_db(wlc->cmi, chanspec)) {
811 WL_ERROR("wl%d: %s: Bad channel %d\n",
812 wlc->pub->unit, __func__, CHSPEC_CHANNEL(chanspec));
813 ASSERT(wlc_valid_chanspec_db(wlc->cmi, chanspec));
817 /* Switch bands if necessary */
818 if (NBANDS(wlc) > 1) {
819 bandunit = CHSPEC_WLCBANDUNIT(chanspec);
820 if (wlc->band->bandunit != bandunit || wlc->bandinit_pending) {
822 if (wlc->bandlocked) {
823 WL_ERROR("wl%d: %s: chspec %d band is locked!\n",
824 wlc->pub->unit, __func__,
825 CHSPEC_CHANNEL(chanspec));
828 /* BMAC_NOTE: should the setband call come after the wlc_bmac_chanspec() ?
829 * if the setband updates (wlc_bsinit) use low level calls to inspect and
830 * set state, the state inspected may be from the wrong band, or the
831 * following wlc_bmac_set_chanspec() may undo the work.
833 wlc_setband(wlc, bandunit);
837 ASSERT(N_ENAB(wlc->pub) || !CHSPEC_IS40(chanspec));
839 /* sync up phy/radio chanspec */
840 wlc_set_phy_chanspec(wlc, chanspec);
842 /* init antenna selection */
843 if (CHSPEC_WLC_BW(old_chanspec) != CHSPEC_WLC_BW(chanspec)) {
844 if (WLANTSEL_ENAB(wlc))
845 wlc_antsel_init(wlc->asi);
847 /* Fix the hardware rateset based on bw.
848 * Mainly add MCS32 for 40Mhz, remove MCS 32 for 20Mhz
850 wlc_rateset_bw_mcs_filter(&wlc->band->hw_rateset,
852 mimo_cap_40 ? CHSPEC_WLC_BW(chanspec)
856 /* update some mac configuration since chanspec changed */
857 wlc_ucode_mac_upd(wlc);
861 static int wlc_get_current_txpwr(struct wlc_info *wlc, void *pwr, uint len)
863 txpwr_limits_t txpwr;
865 tx_power_legacy_t *old_power = NULL;
870 if (len == sizeof(tx_power_legacy_t))
871 old_power = (tx_power_legacy_t *) pwr;
872 else if (len < sizeof(tx_power_t))
873 return BCME_BUFTOOSHORT;
875 memset(&power, 0, sizeof(tx_power_t));
877 power.chanspec = WLC_BAND_PI_RADIO_CHANSPEC;
878 if (wlc->pub->associated)
879 power.local_chanspec = wlc->home_chanspec;
881 /* Return the user target tx power limits for the various rates. Note wlc_phy.c's
882 * public interface only implements getting and setting a single value for all of
883 * rates, so we need to fill the array ourselves.
885 wlc_phy_txpower_get(wlc->band->pi, &qdbm, &override);
886 for (r = 0; r < WL_TX_POWER_RATES; r++) {
887 power.user_limit[r] = (u8) qdbm;
890 power.local_max = wlc->txpwr_local_max * WLC_TXPWR_DB_FACTOR;
891 power.local_constraint =
892 wlc->txpwr_local_constraint * WLC_TXPWR_DB_FACTOR;
894 power.antgain[0] = wlc->bandstate[BAND_2G_INDEX]->antgain;
895 power.antgain[1] = wlc->bandstate[BAND_5G_INDEX]->antgain;
897 wlc_channel_reg_limits(wlc->cmi, power.chanspec, &txpwr);
899 #if WL_TX_POWER_CCK_NUM != WLC_NUM_RATES_CCK
900 #error "WL_TX_POWER_CCK_NUM != WLC_NUM_RATES_CCK"
903 /* CCK tx power limits */
904 for (c = 0, r = WL_TX_POWER_CCK_FIRST; c < WL_TX_POWER_CCK_NUM;
906 power.reg_limit[r] = txpwr.cck[c];
908 #if WL_TX_POWER_OFDM_NUM != WLC_NUM_RATES_OFDM
909 #error "WL_TX_POWER_OFDM_NUM != WLC_NUM_RATES_OFDM"
912 /* 20 MHz OFDM SISO tx power limits */
913 for (c = 0, r = WL_TX_POWER_OFDM_FIRST; c < WL_TX_POWER_OFDM_NUM;
915 power.reg_limit[r] = txpwr.ofdm[c];
917 if (WLC_PHY_11N_CAP(wlc->band)) {
919 /* 20 MHz OFDM CDD tx power limits */
920 for (c = 0, r = WL_TX_POWER_OFDM20_CDD_FIRST;
921 c < WL_TX_POWER_OFDM_NUM; c++, r++)
922 power.reg_limit[r] = txpwr.ofdm_cdd[c];
924 /* 40 MHz OFDM SISO tx power limits */
925 for (c = 0, r = WL_TX_POWER_OFDM40_SISO_FIRST;
926 c < WL_TX_POWER_OFDM_NUM; c++, r++)
927 power.reg_limit[r] = txpwr.ofdm_40_siso[c];
929 /* 40 MHz OFDM CDD tx power limits */
930 for (c = 0, r = WL_TX_POWER_OFDM40_CDD_FIRST;
931 c < WL_TX_POWER_OFDM_NUM; c++, r++)
932 power.reg_limit[r] = txpwr.ofdm_40_cdd[c];
934 #if WL_TX_POWER_MCS_1_STREAM_NUM != WLC_NUM_RATES_MCS_1_STREAM
935 #error "WL_TX_POWER_MCS_1_STREAM_NUM != WLC_NUM_RATES_MCS_1_STREAM"
938 /* 20MHz MCS0-7 SISO tx power limits */
939 for (c = 0, r = WL_TX_POWER_MCS20_SISO_FIRST;
940 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
941 power.reg_limit[r] = txpwr.mcs_20_siso[c];
943 /* 20MHz MCS0-7 CDD tx power limits */
944 for (c = 0, r = WL_TX_POWER_MCS20_CDD_FIRST;
945 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
946 power.reg_limit[r] = txpwr.mcs_20_cdd[c];
948 /* 20MHz MCS0-7 STBC tx power limits */
949 for (c = 0, r = WL_TX_POWER_MCS20_STBC_FIRST;
950 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
951 power.reg_limit[r] = txpwr.mcs_20_stbc[c];
953 /* 40MHz MCS0-7 SISO tx power limits */
954 for (c = 0, r = WL_TX_POWER_MCS40_SISO_FIRST;
955 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
956 power.reg_limit[r] = txpwr.mcs_40_siso[c];
958 /* 40MHz MCS0-7 CDD tx power limits */
959 for (c = 0, r = WL_TX_POWER_MCS40_CDD_FIRST;
960 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
961 power.reg_limit[r] = txpwr.mcs_40_cdd[c];
963 /* 40MHz MCS0-7 STBC tx power limits */
964 for (c = 0, r = WL_TX_POWER_MCS40_STBC_FIRST;
965 c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
966 power.reg_limit[r] = txpwr.mcs_40_stbc[c];
968 #if WL_TX_POWER_MCS_2_STREAM_NUM != WLC_NUM_RATES_MCS_2_STREAM
969 #error "WL_TX_POWER_MCS_2_STREAM_NUM != WLC_NUM_RATES_MCS_2_STREAM"
972 /* 20MHz MCS8-15 SDM tx power limits */
973 for (c = 0, r = WL_TX_POWER_MCS20_SDM_FIRST;
974 c < WLC_NUM_RATES_MCS_2_STREAM; c++, r++)
975 power.reg_limit[r] = txpwr.mcs_20_mimo[c];
977 /* 40MHz MCS8-15 SDM tx power limits */
978 for (c = 0, r = WL_TX_POWER_MCS40_SDM_FIRST;
979 c < WLC_NUM_RATES_MCS_2_STREAM; c++, r++)
980 power.reg_limit[r] = txpwr.mcs_40_mimo[c];
983 power.reg_limit[WL_TX_POWER_MCS_32] = txpwr.mcs32;
986 wlc_phy_txpower_get_current(wlc->band->pi, &power,
987 CHSPEC_CHANNEL(power.chanspec));
989 /* copy the tx_power_t struct to the return buffer,
990 * or convert to a tx_power_legacy_t struct
993 bcopy(&power, pwr, sizeof(tx_power_t));
995 int band_idx = CHSPEC_IS2G(power.chanspec) ? 0 : 1;
997 memset(old_power, 0, sizeof(tx_power_legacy_t));
999 old_power->txpwr_local_max = power.local_max;
1000 old_power->txpwr_local_constraint = power.local_constraint;
1001 if (CHSPEC_IS2G(power.chanspec)) {
1002 old_power->txpwr_chan_reg_max = txpwr.cck[0];
1003 old_power->txpwr_est_Pout[band_idx] =
1005 old_power->txpwr_est_Pout_gofdm = power.est_Pout[0];
1007 old_power->txpwr_chan_reg_max = txpwr.ofdm[0];
1008 old_power->txpwr_est_Pout[band_idx] = power.est_Pout[0];
1010 old_power->txpwr_antgain[0] = power.antgain[0];
1011 old_power->txpwr_antgain[1] = power.antgain[1];
1013 for (r = 0; r < NUM_PWRCTRL_RATES; r++) {
1014 old_power->txpwr_band_max[r] = power.user_limit[r];
1015 old_power->txpwr_limit[r] = power.reg_limit[r];
1016 old_power->txpwr_target[band_idx][r] = power.target[r];
1017 if (CHSPEC_IS2G(power.chanspec))
1018 old_power->txpwr_bphy_cck_max[r] =
1019 power.board_limit[r];
1021 old_power->txpwr_aphy_max[r] =
1022 power.board_limit[r];
1028 #endif /* defined(BCMDBG) */
1030 static u32 wlc_watchdog_backup_bi(struct wlc_info *wlc)
1033 bi = 2 * wlc->cfg->current_bss->dtim_period *
1034 wlc->cfg->current_bss->beacon_period;
1035 if (wlc->bcn_li_dtim)
1036 bi *= wlc->bcn_li_dtim;
1037 else if (wlc->bcn_li_bcn)
1038 /* recalculate bi based on bcn_li_bcn */
1039 bi = 2 * wlc->bcn_li_bcn * wlc->cfg->current_bss->beacon_period;
1041 if (bi < 2 * TIMER_INTERVAL_WATCHDOG)
1042 bi = 2 * TIMER_INTERVAL_WATCHDOG;
1046 /* Change to run the watchdog either from a periodic timer or from tbtt handler.
1047 * Call watchdog from tbtt handler if tbtt is true, watchdog timer otherwise.
1049 void wlc_watchdog_upd(struct wlc_info *wlc, bool tbtt)
1051 /* make sure changing watchdog driver is allowed */
1052 if (!wlc->pub->up || !wlc->pub->align_wd_tbtt)
1054 if (!tbtt && wlc->WDarmed) {
1055 wl_del_timer(wlc->wl, wlc->wdtimer);
1056 wlc->WDarmed = false;
1059 /* stop watchdog timer and use tbtt interrupt to drive watchdog */
1060 if (tbtt && wlc->WDarmed) {
1061 wl_del_timer(wlc->wl, wlc->wdtimer);
1062 wlc->WDarmed = false;
1063 wlc->WDlast = OSL_SYSUPTIME();
1065 /* arm watchdog timer and drive the watchdog there */
1066 else if (!tbtt && !wlc->WDarmed) {
1067 wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG,
1069 wlc->WDarmed = true;
1071 if (tbtt && !wlc->WDarmed) {
1072 wl_add_timer(wlc->wl, wlc->wdtimer, wlc_watchdog_backup_bi(wlc),
1074 wlc->WDarmed = true;
1078 ratespec_t wlc_lowest_basic_rspec(struct wlc_info *wlc, wlc_rateset_t *rs)
1080 ratespec_t lowest_basic_rspec;
1083 /* Use the lowest basic rate */
1084 lowest_basic_rspec = rs->rates[0] & RATE_MASK;
1085 for (i = 0; i < rs->count; i++) {
1086 if (rs->rates[i] & WLC_RATE_FLAG) {
1087 lowest_basic_rspec = rs->rates[i] & RATE_MASK;
1092 /* pick siso/cdd as default for OFDM (note no basic rate MCSs are supported yet) */
1093 if (IS_OFDM(lowest_basic_rspec)) {
1094 lowest_basic_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
1098 return lowest_basic_rspec;
1101 /* This function changes the phytxctl for beacon based on current beacon ratespec AND txant
1102 * setting as per this table:
1103 * ratespec CCK ant = wlc->stf->txant
1106 void wlc_beacon_phytxctl_txant_upd(struct wlc_info *wlc, ratespec_t bcn_rspec)
1109 u16 phytxant = wlc->stf->phytxant;
1110 u16 mask = PHY_TXC_ANT_MASK;
1112 /* for non-siso rates or default setting, use the available chains */
1113 if (WLC_PHY_11N_CAP(wlc->band)) {
1114 phytxant = wlc_stf_phytxchain_sel(wlc, bcn_rspec);
1117 phyctl = wlc_read_shm(wlc, M_BCN_PCTLWD);
1118 phyctl = (phyctl & ~mask) | phytxant;
1119 wlc_write_shm(wlc, M_BCN_PCTLWD, phyctl);
1122 /* centralized protection config change function to simplify debugging, no consistency checking
1123 * this should be called only on changes to avoid overhead in periodic function
1125 void wlc_protection_upd(struct wlc_info *wlc, uint idx, int val)
1127 WL_TRACE("wlc_protection_upd: idx %d, val %d\n", idx, val);
1130 case WLC_PROT_G_SPEC:
1131 wlc->protection->_g = (bool) val;
1133 case WLC_PROT_G_OVR:
1134 wlc->protection->g_override = (s8) val;
1136 case WLC_PROT_G_USER:
1137 wlc->protection->gmode_user = (u8) val;
1139 case WLC_PROT_OVERLAP:
1140 wlc->protection->overlap = (s8) val;
1142 case WLC_PROT_N_USER:
1143 wlc->protection->nmode_user = (s8) val;
1145 case WLC_PROT_N_CFG:
1146 wlc->protection->n_cfg = (s8) val;
1148 case WLC_PROT_N_CFG_OVR:
1149 wlc->protection->n_cfg_override = (s8) val;
1151 case WLC_PROT_N_NONGF:
1152 wlc->protection->nongf = (bool) val;
1154 case WLC_PROT_N_NONGF_OVR:
1155 wlc->protection->nongf_override = (s8) val;
1157 case WLC_PROT_N_PAM_OVR:
1158 wlc->protection->n_pam_override = (s8) val;
1160 case WLC_PROT_N_OBSS:
1161 wlc->protection->n_obss = (bool) val;
1171 static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val)
1173 wlc->ht_cap.cap &= ~(HT_CAP_SHORT_GI_20 | HT_CAP_SHORT_GI_40);
1174 wlc->ht_cap.cap |= (val & WLC_N_SGI_20) ? HT_CAP_SHORT_GI_20 : 0;
1175 wlc->ht_cap.cap |= (val & WLC_N_SGI_40) ? HT_CAP_SHORT_GI_40 : 0;
1178 wlc_update_beacon(wlc);
1179 wlc_update_probe_resp(wlc, true);
1183 static void wlc_ht_update_ldpc(struct wlc_info *wlc, s8 val)
1185 wlc->stf->ldpc = val;
1187 wlc->ht_cap.cap &= ~HT_CAP_LDPC_CODING;
1188 if (wlc->stf->ldpc != OFF)
1189 wlc->ht_cap.cap |= HT_CAP_LDPC_CODING;
1192 wlc_update_beacon(wlc);
1193 wlc_update_probe_resp(wlc, true);
1194 wlc_phy_ldpc_override_set(wlc->band->pi, (val ? true : false));
1199 * ucode, hwmac update
1200 * Channel dependent updates for ucode and hw
1202 static void wlc_ucode_mac_upd(struct wlc_info *wlc)
1204 /* enable or disable any active IBSSs depending on whether or not
1205 * we are on the home channel
1207 if (wlc->home_chanspec == WLC_BAND_PI_RADIO_CHANSPEC) {
1208 if (wlc->pub->associated) {
1209 /* BMAC_NOTE: This is something that should be fixed in ucode inits.
1210 * I think that the ucode inits set up the bcn templates and shm values
1211 * with a bogus beacon. This should not be done in the inits. If ucode needs
1212 * to set up a beacon for testing, the test routines should write it down,
1213 * not expect the inits to populate a bogus beacon.
1215 if (WLC_PHY_11N_CAP(wlc->band)) {
1216 wlc_write_shm(wlc, M_BCN_TXTSF_OFFSET,
1217 wlc->band->bcntsfoff);
1221 /* disable an active IBSS if we are not on the home channel */
1224 /* update the various promisc bits */
1225 wlc_mac_bcn_promisc(wlc);
1226 wlc_mac_promisc(wlc);
1229 static void wlc_bandinit_ordered(struct wlc_info *wlc, chanspec_t chanspec)
1231 wlc_rateset_t default_rateset;
1233 uint i, band_order[2];
1235 WL_TRACE("wl%d: wlc_bandinit_ordered\n", wlc->pub->unit);
1237 * We might have been bandlocked during down and the chip power-cycled (hibernate).
1238 * figure out the right band to park on
1240 if (wlc->bandlocked || NBANDS(wlc) == 1) {
1241 ASSERT(CHSPEC_WLCBANDUNIT(chanspec) == wlc->band->bandunit);
1243 parkband = wlc->band->bandunit; /* updated in wlc_bandlock() */
1244 band_order[0] = band_order[1] = parkband;
1246 /* park on the band of the specified chanspec */
1247 parkband = CHSPEC_WLCBANDUNIT(chanspec);
1249 /* order so that parkband initialize last */
1250 band_order[0] = parkband ^ 1;
1251 band_order[1] = parkband;
1254 /* make each band operational, software state init */
1255 for (i = 0; i < NBANDS(wlc); i++) {
1256 uint j = band_order[i];
1258 wlc->band = wlc->bandstate[j];
1260 wlc_default_rateset(wlc, &default_rateset);
1262 /* fill in hw_rate */
1263 wlc_rateset_filter(&default_rateset, &wlc->band->hw_rateset,
1264 false, WLC_RATES_CCK_OFDM, RATE_MASK,
1265 (bool) N_ENAB(wlc->pub));
1267 /* init basic rate lookup */
1268 wlc_rate_lookup_init(wlc, &default_rateset);
1271 /* sync up phy/radio chanspec */
1272 wlc_set_phy_chanspec(wlc, chanspec);
1275 /* band-specific init */
1276 static void WLBANDINITFN(wlc_bsinit) (struct wlc_info *wlc)
1278 WL_TRACE("wl%d: wlc_bsinit: bandunit %d\n",
1279 wlc->pub->unit, wlc->band->bandunit);
1281 /* write ucode ACK/CTS rate table */
1282 wlc_set_ratetable(wlc);
1284 /* update some band specific mac configuration */
1285 wlc_ucode_mac_upd(wlc);
1287 /* init antenna selection */
1288 if (WLANTSEL_ENAB(wlc))
1289 wlc_antsel_init(wlc->asi);
1293 /* switch to and initialize new band */
1294 static void WLBANDINITFN(wlc_setband) (struct wlc_info *wlc, uint bandunit)
1299 ASSERT(NBANDS(wlc) > 1);
1300 ASSERT(!wlc->bandlocked);
1301 ASSERT(bandunit != wlc->band->bandunit || wlc->bandinit_pending);
1303 wlc->band = wlc->bandstate[bandunit];
1308 /* wait for at least one beacon before entering sleeping state */
1309 wlc->PMawakebcn = true;
1310 FOREACH_AS_STA(wlc, idx, cfg)
1311 cfg->PMawakebcn = true;
1312 wlc_set_ps_ctrl(wlc);
1314 /* band-specific initializations */
1318 /* Initialize a WME Parameter Info Element with default STA parameters from WMM Spec, Table 12 */
1319 void wlc_wme_initparams_sta(struct wlc_info *wlc, wme_param_ie_t *pe)
1321 static const wme_param_ie_t stadef = {
1324 WME_SUBTYPE_PARAM_IE,
1329 {EDCF_AC_BE_ACI_STA, EDCF_AC_BE_ECW_STA,
1330 HTOL16(EDCF_AC_BE_TXOP_STA)},
1331 {EDCF_AC_BK_ACI_STA, EDCF_AC_BK_ECW_STA,
1332 HTOL16(EDCF_AC_BK_TXOP_STA)},
1333 {EDCF_AC_VI_ACI_STA, EDCF_AC_VI_ECW_STA,
1334 HTOL16(EDCF_AC_VI_TXOP_STA)},
1335 {EDCF_AC_VO_ACI_STA, EDCF_AC_VO_ECW_STA,
1336 HTOL16(EDCF_AC_VO_TXOP_STA)}
1340 ASSERT(sizeof(*pe) == WME_PARAM_IE_LEN);
1341 memcpy(pe, &stadef, sizeof(*pe));
1344 void wlc_wme_setparams(struct wlc_info *wlc, u16 aci, void *arg, bool suspend)
1347 shm_acparams_t acp_shm;
1349 struct ieee80211_tx_queue_params *params = arg;
1353 /* Only apply params if the core is out of reset and has clocks */
1355 WL_ERROR("wl%d: %s : no-clock\n", wlc->pub->unit, __func__);
1360 * AP uses AC params from wme_param_ie_ap.
1361 * AP advertises AC params from wme_param_ie.
1362 * STA uses AC params from wme_param_ie.
1365 wlc->wme_admctl = 0;
1368 memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
1369 /* find out which ac this set of params applies to */
1370 ASSERT(aci < AC_COUNT);
1371 /* set the admission control policy for this AC */
1372 /* wlc->wme_admctl |= 1 << aci; *//* should be set ?? seems like off by default */
1374 /* fill in shm ac params struct */
1375 acp_shm.txop = ltoh16(params->txop);
1376 /* convert from units of 32us to us for ucode */
1377 wlc->edcf_txop[aci & 0x3] = acp_shm.txop =
1378 EDCF_TXOP2USEC(acp_shm.txop);
1379 acp_shm.aifs = (params->aifs & EDCF_AIFSN_MASK);
1381 if (aci == AC_VI && acp_shm.txop == 0
1382 && acp_shm.aifs < EDCF_AIFSN_MAX)
1385 if (acp_shm.aifs < EDCF_AIFSN_MIN
1386 || acp_shm.aifs > EDCF_AIFSN_MAX) {
1387 WL_ERROR("wl%d: wlc_edcf_setparams: bad aifs %d\n",
1388 wlc->pub->unit, acp_shm.aifs);
1392 acp_shm.cwmin = params->cw_min;
1393 acp_shm.cwmax = params->cw_max;
1394 acp_shm.cwcur = acp_shm.cwmin;
1396 R_REG(wlc->osh, &wlc->regs->tsf_random) & acp_shm.cwcur;
1397 acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
1398 /* Indicate the new params to the ucode */
1399 acp_shm.status = wlc_read_shm(wlc, (M_EDCF_QINFO +
1400 wme_shmemacindex(aci) *
1402 M_EDCF_STATUS_OFF));
1403 acp_shm.status |= WME_STATUS_NEWAC;
1405 /* Fill in shm acparam table */
1406 shm_entry = (u16 *) &acp_shm;
1407 for (i = 0; i < (int)sizeof(shm_acparams_t); i += 2)
1410 wme_shmemacindex(aci) * M_EDCF_QLEN + i,
1416 wlc_suspend_mac_and_wait(wlc);
1419 wlc_enable_mac(wlc);
1423 void wlc_edcf_setparams(wlc_bsscfg_t *cfg, bool suspend)
1425 struct wlc_info *wlc = cfg->wlc;
1427 edcf_acparam_t *edcf_acp;
1428 shm_acparams_t acp_shm;
1434 /* Only apply params if the core is out of reset and has clocks */
1439 * AP uses AC params from wme_param_ie_ap.
1440 * AP advertises AC params from wme_param_ie.
1441 * STA uses AC params from wme_param_ie.
1444 edcf_acp = (edcf_acparam_t *) &wlc->wme_param_ie.acparam[0];
1446 wlc->wme_admctl = 0;
1448 for (i = 0; i < AC_COUNT; i++, edcf_acp++) {
1449 memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
1450 /* find out which ac this set of params applies to */
1451 aci = (edcf_acp->ACI & EDCF_ACI_MASK) >> EDCF_ACI_SHIFT;
1452 ASSERT(aci < AC_COUNT);
1453 /* set the admission control policy for this AC */
1454 if (edcf_acp->ACI & EDCF_ACM_MASK) {
1455 wlc->wme_admctl |= 1 << aci;
1458 /* fill in shm ac params struct */
1459 acp_shm.txop = ltoh16(edcf_acp->TXOP);
1460 /* convert from units of 32us to us for ucode */
1461 wlc->edcf_txop[aci] = acp_shm.txop =
1462 EDCF_TXOP2USEC(acp_shm.txop);
1463 acp_shm.aifs = (edcf_acp->ACI & EDCF_AIFSN_MASK);
1465 if (aci == AC_VI && acp_shm.txop == 0
1466 && acp_shm.aifs < EDCF_AIFSN_MAX)
1469 if (acp_shm.aifs < EDCF_AIFSN_MIN
1470 || acp_shm.aifs > EDCF_AIFSN_MAX) {
1471 WL_ERROR("wl%d: wlc_edcf_setparams: bad aifs %d\n",
1472 wlc->pub->unit, acp_shm.aifs);
1476 /* CWmin = 2^(ECWmin) - 1 */
1477 acp_shm.cwmin = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK);
1478 /* CWmax = 2^(ECWmax) - 1 */
1479 acp_shm.cwmax = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK)
1480 >> EDCF_ECWMAX_SHIFT);
1481 acp_shm.cwcur = acp_shm.cwmin;
1483 R_REG(wlc->osh, &wlc->regs->tsf_random) & acp_shm.cwcur;
1484 acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
1485 /* Indicate the new params to the ucode */
1486 acp_shm.status = wlc_read_shm(wlc, (M_EDCF_QINFO +
1487 wme_shmemacindex(aci) *
1489 M_EDCF_STATUS_OFF));
1490 acp_shm.status |= WME_STATUS_NEWAC;
1492 /* Fill in shm acparam table */
1493 shm_entry = (u16 *) &acp_shm;
1494 for (j = 0; j < (int)sizeof(shm_acparams_t); j += 2)
1497 wme_shmemacindex(aci) * M_EDCF_QLEN + j,
1502 wlc_suspend_mac_and_wait(wlc);
1504 if (AP_ENAB(wlc->pub) && WME_ENAB(wlc->pub)) {
1505 wlc_update_beacon(wlc);
1506 wlc_update_probe_resp(wlc, false);
1510 wlc_enable_mac(wlc);
1514 bool wlc_timers_init(struct wlc_info *wlc, int unit)
1516 wlc->wdtimer = wl_init_timer(wlc->wl, wlc_watchdog_by_timer,
1518 if (!wlc->wdtimer) {
1519 WL_ERROR("wl%d: wl_init_timer for wdtimer failed\n", unit);
1523 wlc->radio_timer = wl_init_timer(wlc->wl, wlc_radio_timer,
1525 if (!wlc->radio_timer) {
1526 WL_ERROR("wl%d: wl_init_timer for radio_timer failed\n", unit);
1537 * Initialize wlc_info default values ...
1538 * may get overrides later in this function
1540 void wlc_info_init(struct wlc_info *wlc, int unit)
1543 /* Assume the device is there until proven otherwise */
1544 wlc->device_present = true;
1546 /* set default power output percentage to 100 percent */
1547 wlc->txpwr_percent = 100;
1549 /* Save our copy of the chanspec */
1550 wlc->chanspec = CH20MHZ_CHSPEC(1);
1552 /* initialize CCK preamble mode to unassociated state */
1553 wlc->shortpreamble = false;
1555 wlc->legacy_probe = true;
1557 /* various 802.11g modes */
1558 wlc->shortslot = false;
1559 wlc->shortslot_override = WLC_SHORTSLOT_AUTO;
1561 wlc->barker_overlap_control = true;
1562 wlc->barker_preamble = WLC_BARKER_SHORT_ALLOWED;
1563 wlc->txburst_limit_override = AUTO;
1565 wlc_protection_upd(wlc, WLC_PROT_G_OVR, WLC_PROTECTION_AUTO);
1566 wlc_protection_upd(wlc, WLC_PROT_G_SPEC, false);
1568 wlc_protection_upd(wlc, WLC_PROT_N_CFG_OVR, WLC_PROTECTION_AUTO);
1569 wlc_protection_upd(wlc, WLC_PROT_N_CFG, WLC_N_PROTECTION_OFF);
1570 wlc_protection_upd(wlc, WLC_PROT_N_NONGF_OVR, WLC_PROTECTION_AUTO);
1571 wlc_protection_upd(wlc, WLC_PROT_N_NONGF, false);
1572 wlc_protection_upd(wlc, WLC_PROT_N_PAM_OVR, AUTO);
1574 wlc_protection_upd(wlc, WLC_PROT_OVERLAP, WLC_PROTECTION_CTL_OVERLAP);
1576 /* 802.11g draft 4.0 NonERP elt advertisement */
1577 wlc->include_legacy_erp = true;
1579 wlc->stf->ant_rx_ovr = ANT_RX_DIV_DEF;
1580 wlc->stf->txant = ANT_TX_DEF;
1582 wlc->prb_resp_timeout = WLC_PRB_RESP_TIMEOUT;
1584 wlc->usr_fragthresh = DOT11_DEFAULT_FRAG_LEN;
1585 for (i = 0; i < NFIFO; i++)
1586 wlc->fragthresh[i] = DOT11_DEFAULT_FRAG_LEN;
1587 wlc->RTSThresh = DOT11_DEFAULT_RTS_LEN;
1589 /* default rate fallback retry limits */
1590 wlc->SFBL = RETRY_SHORT_FB;
1591 wlc->LFBL = RETRY_LONG_FB;
1593 /* default mac retry limits */
1594 wlc->SRL = RETRY_SHORT_DEF;
1595 wlc->LRL = RETRY_LONG_DEF;
1598 wlc->PM = PM_OFF; /* User's setting of PM mode through IOCTL */
1599 wlc->PM_override = false; /* Prevents from going to PM if our AP is 'ill' */
1600 wlc->PMenabled = false; /* Current PM state */
1601 wlc->PMpending = false; /* Tracks whether STA indicated PM in the last attempt */
1602 wlc->PMblocked = false; /* To allow blocking going into PM during RM and scans */
1604 /* In WMM Auto mode, PM is allowed if association is a UAPSD association */
1605 wlc->WME_PM_blocked = false;
1607 /* Init wme queuing method */
1608 wlc->wme_prec_queuing = false;
1610 /* Overrides for the core to stay awake under zillion conditions Look for STAY_AWAKE */
1612 /* Are we waiting for a response to PS-Poll that we sent */
1613 wlc->PSpoll = false;
1616 wlc->wme_apsd = true;
1617 wlc->apsd_sta_usp = false;
1618 wlc->apsd_trigger_timeout = 0; /* disable the trigger timer */
1619 wlc->apsd_trigger_ac = AC_BITMAP_ALL;
1621 /* Set flag to indicate that hw keys should be used when available. */
1622 wlc->wsec_swkeys = false;
1624 /* init the 4 static WEP default keys */
1625 for (i = 0; i < WSEC_MAX_DEFAULT_KEYS; i++) {
1626 wlc->wsec_keys[i] = wlc->wsec_def_keys[i];
1627 wlc->wsec_keys[i]->idx = (u8) i;
1630 wlc->_regulatory_domain = false; /* 802.11d */
1632 /* WME QoS mode is Auto by default */
1633 wlc->pub->_wme = AUTO;
1635 #ifdef BCMSDIODEV_ENABLED
1636 wlc->pub->_priofc = true; /* enable priority flow control for sdio dongle */
1639 wlc->pub->_ampdu = AMPDU_AGG_HOST;
1640 wlc->pub->bcmerror = 0;
1641 wlc->ibss_allowed = true;
1642 wlc->ibss_coalesce_allowed = true;
1643 wlc->pub->_coex = ON;
1645 /* intialize mpc delay */
1646 wlc->mpc_delay_off = wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
1648 wlc->pr80838_war = true;
1651 static bool wlc_state_bmac_sync(struct wlc_info *wlc)
1653 wlc_bmac_state_t state_bmac;
1655 if (wlc_bmac_state_get(wlc->hw, &state_bmac) != 0)
1658 wlc->machwcap = state_bmac.machwcap;
1659 wlc_protection_upd(wlc, WLC_PROT_N_PAM_OVR,
1660 (s8) state_bmac.preamble_ovr);
1665 static uint wlc_attach_module(struct wlc_info *wlc)
1669 unit = wlc->pub->unit;
1671 wlc->asi = wlc_antsel_attach(wlc, wlc->osh, wlc->pub, wlc->hw);
1672 if (wlc->asi == NULL) {
1673 WL_ERROR("wl%d: wlc_attach: wlc_antsel_attach failed\n", unit);
1678 wlc->ampdu = wlc_ampdu_attach(wlc);
1679 if (wlc->ampdu == NULL) {
1680 WL_ERROR("wl%d: wlc_attach: wlc_ampdu_attach failed\n", unit);
1685 /* Initialize event queue; needed before following calls */
1687 wlc_eventq_attach(wlc->pub, wlc, wlc->wl, wlc_process_eventq);
1688 if (wlc->eventq == NULL) {
1689 WL_ERROR("wl%d: wlc_attach: wlc_eventq_attachfailed\n", unit);
1694 if ((wlc_stf_attach(wlc) != 0)) {
1695 WL_ERROR("wl%d: wlc_attach: wlc_stf_attach failed\n", unit);
1703 struct wlc_pub *wlc_pub(void *wlc)
1705 return ((struct wlc_info *) wlc)->pub;
1708 #define CHIP_SUPPORTS_11N(wlc) 1
1711 * The common driver entry routine. Error codes should be unique
1713 void *wlc_attach(void *wl, u16 vendor, u16 device, uint unit, bool piomode,
1714 struct osl_info *osh, void *regsva, uint bustype,
1715 void *btparam, uint *perr)
1717 struct wlc_info *wlc;
1720 struct wlc_pub *pub;
1724 WL_NONE("wl%d: %s: vendor 0x%x device 0x%x\n",
1725 unit, __func__, vendor, device);
1727 ASSERT(WSEC_MAX_RCMTA_KEYS <= WSEC_MAX_KEYS);
1728 ASSERT(WSEC_MAX_DEFAULT_KEYS == WLC_DEFAULT_KEYS);
1730 /* some code depends on packed structures */
1731 ASSERT(sizeof(struct ether_addr) == ETH_ALEN);
1732 ASSERT(sizeof(struct ether_header) == ETH_HLEN);
1733 ASSERT(sizeof(d11regs_t) == SI_CORE_SIZE);
1734 ASSERT(sizeof(ofdm_phy_hdr_t) == D11_PHY_HDR_LEN);
1735 ASSERT(sizeof(cck_phy_hdr_t) == D11_PHY_HDR_LEN);
1736 ASSERT(sizeof(d11txh_t) == D11_TXH_LEN);
1737 ASSERT(sizeof(d11rxhdr_t) == RXHDR_LEN);
1738 ASSERT(sizeof(struct dot11_header) == DOT11_A4_HDR_LEN);
1739 ASSERT(sizeof(struct dot11_rts_frame) == DOT11_RTS_LEN);
1740 ASSERT(sizeof(struct dot11_management_header) == DOT11_MGMT_HDR_LEN);
1741 ASSERT(sizeof(struct dot11_bcn_prb) == DOT11_BCN_PRB_LEN);
1742 ASSERT(sizeof(tx_status_t) == TXSTATUS_LEN);
1743 ASSERT(sizeof(ht_cap_ie_t) == HT_CAP_IE_LEN);
1745 ASSERT(offsetof(wl_scan_params_t, channel_list) ==
1746 WL_SCAN_PARAMS_FIXED_SIZE);
1748 ASSERT(IS_ALIGNED(offsetof(wsec_key_t, data), sizeof(u32)));
1749 ASSERT(ISPOWEROF2(MA_WINDOW_SZ));
1751 ASSERT(sizeof(wlc_d11rxhdr_t) <= WL_HWRXOFF);
1754 * Number of replay counters value used in WPA IE must match # rxivs
1755 * supported in wsec_key_t struct. See 802.11i/D3.0 sect. 7.3.2.17
1756 * 'RSN Information Element' figure 8 for this mapping.
1758 ASSERT((WPA_CAP_16_REPLAY_CNTRS == WLC_REPLAY_CNTRS_VALUE
1759 && 16 == WLC_NUMRXIVS)
1760 || (WPA_CAP_4_REPLAY_CNTRS == WLC_REPLAY_CNTRS_VALUE
1761 && 4 == WLC_NUMRXIVS));
1763 /* allocate struct wlc_info state and its substructures */
1764 wlc = (struct wlc_info *) wlc_attach_malloc(osh, unit, &err, device);
1774 wlc->band = wlc->bandstate[0];
1775 wlc->core = wlc->corestate;
1779 wlc->btparam = btparam;
1780 pub->_piomode = piomode;
1781 wlc->bandinit_pending = false;
1782 /* By default restrict TKIP associations from 11n STA's */
1783 wlc->ht_wsec_restriction = WLC_HT_TKIP_RESTRICT;
1785 /* populate struct wlc_info with default values */
1786 wlc_info_init(wlc, unit);
1788 /* update sta/ap related parameters */
1791 /* 11n_disable nvram */
1792 n_disabled = getintvar(pub->vars, "11n_disable");
1794 /* register a module (to handle iovars) */
1795 wlc_module_register(wlc->pub, wlc_iovars, "wlc_iovars", wlc,
1796 wlc_doiovar, NULL, NULL);
1798 /* low level attach steps(all hw accesses go inside, no more in rest of the attach) */
1799 err = wlc_bmac_attach(wlc, vendor, device, unit, piomode, osh, regsva,
1804 /* for some states, due to different info pointer(e,g, wlc, wlc_hw) or master/slave split,
1805 * HIGH driver(both monolithic and HIGH_ONLY) needs to sync states FROM BMAC portion driver
1807 if (!wlc_state_bmac_sync(wlc)) {
1812 pub->phy_11ncapable = WLC_PHY_11N_CAP(wlc->band);
1814 /* propagate *vars* from BMAC driver to high driver */
1815 wlc_bmac_copyfrom_vars(wlc->hw, &pub->vars, &wlc->vars_size);
1818 /* set maximum allowed duty cycle */
1819 wlc->tx_duty_cycle_ofdm =
1820 (u16) getintvar(pub->vars, "tx_duty_cycle_ofdm");
1821 wlc->tx_duty_cycle_cck =
1822 (u16) getintvar(pub->vars, "tx_duty_cycle_cck");
1824 wlc_stf_phy_chain_calc(wlc);
1826 /* txchain 1: txant 0, txchain 2: txant 1 */
1827 if (WLCISNPHY(wlc->band) && (wlc->stf->txstreams == 1))
1828 wlc->stf->txant = wlc->stf->hw_txchain - 1;
1830 /* push to BMAC driver */
1831 wlc_phy_stf_chain_init(wlc->band->pi, wlc->stf->hw_txchain,
1832 wlc->stf->hw_rxchain);
1834 /* pull up some info resulting from the low attach */
1837 for (i = 0; i < NFIFO; i++)
1838 wlc->core->txavail[i] = wlc->hw->txavail[i];
1841 wlc_bmac_hw_etheraddr(wlc->hw, &wlc->perm_etheraddr);
1843 bcopy((char *)&wlc->perm_etheraddr, (char *)&pub->cur_etheraddr,
1846 for (j = 0; j < NBANDS(wlc); j++) {
1847 /* Use band 1 for single band 11a */
1848 if (IS_SINGLEBAND_5G(wlc->deviceid))
1851 wlc->band = wlc->bandstate[j];
1853 if (!wlc_attach_stf_ant_init(wlc)) {
1858 /* default contention windows size limits */
1859 wlc->band->CWmin = APHY_CWMIN;
1860 wlc->band->CWmax = PHY_CWMAX;
1862 /* init gmode value */
1863 if (BAND_2G(wlc->band->bandtype)) {
1864 wlc->band->gmode = GMODE_AUTO;
1865 wlc_protection_upd(wlc, WLC_PROT_G_USER,
1869 /* init _n_enab supported mode */
1870 if (WLC_PHY_11N_CAP(wlc->band) && CHIP_SUPPORTS_11N(wlc)) {
1871 if (n_disabled & WLFEATURE_DISABLE_11N) {
1873 wlc_protection_upd(wlc, WLC_PROT_N_USER, OFF);
1875 pub->_n_enab = SUPPORT_11N;
1876 wlc_protection_upd(wlc, WLC_PROT_N_USER,
1878 SUPPORT_11N) ? WL_11N_2x2 :
1883 /* init per-band default rateset, depend on band->gmode */
1884 wlc_default_rateset(wlc, &wlc->band->defrateset);
1886 /* fill in hw_rateset (used early by WLC_SET_RATESET) */
1887 wlc_rateset_filter(&wlc->band->defrateset,
1888 &wlc->band->hw_rateset, false,
1889 WLC_RATES_CCK_OFDM, RATE_MASK,
1890 (bool) N_ENAB(wlc->pub));
1893 /* update antenna config due to wlc->stf->txant/txchain/ant_rx_ovr change */
1894 wlc_stf_phy_txant_upd(wlc);
1896 /* attach each modules */
1897 err = wlc_attach_module(wlc);
1901 if (!wlc_timers_init(wlc, unit)) {
1902 WL_ERROR("wl%d: %s: wlc_init_timer failed\n", unit, __func__);
1907 /* depend on rateset, gmode */
1908 wlc->cmi = wlc_channel_mgr_attach(wlc);
1910 WL_ERROR("wl%d: %s: wlc_channel_mgr_attach failed\n",
1916 /* init default when all parameters are ready, i.e. ->rateset */
1917 wlc_bss_default_init(wlc);
1920 * Complete the wlc default state initializations..
1923 /* allocate our initial queue */
1924 qi = wlc_txq_alloc(wlc, osh);
1926 WL_ERROR("wl%d: %s: failed to malloc tx queue\n",
1931 wlc->active_queue = qi;
1933 wlc->bsscfg[0] = wlc->cfg;
1935 wlc->cfg->wlc = wlc;
1936 pub->txmaxpkts = MAXTXPKTS;
1938 WLCNTSET(pub->_cnt->version, WL_CNT_T_VERSION);
1939 WLCNTSET(pub->_cnt->length, sizeof(wl_cnt_t));
1941 WLCNTSET(pub->_wme_cnt->version, WL_WME_CNT_VERSION);
1942 WLCNTSET(pub->_wme_cnt->length, sizeof(wl_wme_cnt_t));
1944 wlc_wme_initparams_sta(wlc, &wlc->wme_param_ie);
1946 wlc->mimoft = FT_HT;
1947 wlc->ht_cap.cap = HT_CAP;
1948 if (HT_ENAB(wlc->pub))
1949 wlc->stf->ldpc = AUTO;
1951 wlc->mimo_40txbw = AUTO;
1952 wlc->ofdm_40txbw = AUTO;
1953 wlc->cck_40txbw = AUTO;
1954 wlc_update_mimo_band_bwcap(wlc, WLC_N_BW_20IN2G_40IN5G);
1956 /* Enable setting the RIFS Mode bit by default in HT Info IE */
1957 wlc->rifs_advert = AUTO;
1959 /* Set default values of SGI */
1960 if (WLC_SGI_CAP_PHY(wlc)) {
1961 wlc_ht_update_sgi_rx(wlc, (WLC_N_SGI_20 | WLC_N_SGI_40));
1963 } else if (WLCISSSLPNPHY(wlc->band)) {
1964 wlc_ht_update_sgi_rx(wlc, (WLC_N_SGI_20 | WLC_N_SGI_40));
1967 wlc_ht_update_sgi_rx(wlc, 0);
1971 /* *******nvram 11n config overrides Start ********* */
1973 /* apply the sgi override from nvram conf */
1974 if (n_disabled & WLFEATURE_DISABLE_11N_SGI_TX)
1977 if (n_disabled & WLFEATURE_DISABLE_11N_SGI_RX)
1978 wlc_ht_update_sgi_rx(wlc, 0);
1980 /* apply the stbc override from nvram conf */
1981 if (n_disabled & WLFEATURE_DISABLE_11N_STBC_TX) {
1982 wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = OFF;
1983 wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = OFF;
1984 wlc->ht_cap.cap &= ~HT_CAP_TX_STBC;
1986 if (n_disabled & WLFEATURE_DISABLE_11N_STBC_RX)
1987 wlc_stf_stbc_rx_set(wlc, HT_CAP_RX_STBC_NO);
1989 /* apply the GF override from nvram conf */
1990 if (n_disabled & WLFEATURE_DISABLE_11N_GF)
1991 wlc->ht_cap.cap &= ~HT_CAP_GF;
1993 /* initialize radio_mpc_disable according to wlc->mpc */
1994 wlc_radio_mpc_upd(wlc);
1996 if (WLANTSEL_ENAB(wlc)) {
1997 if ((wlc->pub->sih->chip) == BCM43235_CHIP_ID) {
1998 if ((getintvar(wlc->pub->vars, "aa2g") == 7) ||
1999 (getintvar(wlc->pub->vars, "aa5g") == 7)) {
2000 wlc_bmac_antsel_set(wlc->hw, 1);
2003 wlc_bmac_antsel_set(wlc->hw, wlc->asi->antsel_avail);
2013 WL_ERROR("wl%d: %s: failed with err %d\n", unit, __func__, err);
2022 static void wlc_attach_antgain_init(struct wlc_info *wlc)
2025 unit = wlc->pub->unit;
2027 if ((wlc->band->antgain == -1) && (wlc->pub->sromrev == 1)) {
2028 /* default antenna gain for srom rev 1 is 2 dBm (8 qdbm) */
2029 wlc->band->antgain = 8;
2030 } else if (wlc->band->antgain == -1) {
2031 WL_ERROR("wl%d: %s: Invalid antennas available in srom, using 2dB\n",
2033 wlc->band->antgain = 8;
2036 /* Older sroms specified gain in whole dbm only. In order
2037 * be able to specify qdbm granularity and remain backward compatible
2038 * the whole dbms are now encoded in only low 6 bits and remaining qdbms
2039 * are encoded in the hi 2 bits. 6 bit signed number ranges from
2040 * -32 - 31. Examples: 0x1 = 1 db,
2041 * 0xc1 = 1.75 db (1 + 3 quarters),
2042 * 0x3f = -1 (-1 + 0 quarters),
2043 * 0x7f = -.75 (-1 in low 6 bits + 1 quarters in hi 2 bits) = -3 qdbm.
2044 * 0xbf = -.50 (-1 in low 6 bits + 2 quarters in hi 2 bits) = -2 qdbm.
2046 gain = wlc->band->antgain & 0x3f;
2047 gain <<= 2; /* Sign extend */
2049 fract = (wlc->band->antgain & 0xc0) >> 6;
2050 wlc->band->antgain = 4 * gain + fract;
2054 static bool wlc_attach_stf_ant_init(struct wlc_info *wlc)
2061 unit = wlc->pub->unit;
2062 vars = wlc->pub->vars;
2063 bandtype = wlc->band->bandtype;
2065 /* get antennas available */
2066 aa = (s8) getintvar(vars, (BAND_5G(bandtype) ? "aa5g" : "aa2g"));
2068 aa = (s8) getintvar(vars,
2069 (BAND_5G(bandtype) ? "aa1" : "aa0"));
2070 if ((aa < 1) || (aa > 15)) {
2071 WL_ERROR("wl%d: %s: Invalid antennas available in srom (0x%x), using 3\n",
2072 unit, __func__, aa);
2076 /* reset the defaults if we have a single antenna */
2078 wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_0;
2079 wlc->stf->txant = ANT_TX_FORCE_0;
2080 } else if (aa == 2) {
2081 wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_1;
2082 wlc->stf->txant = ANT_TX_FORCE_1;
2086 /* Compute Antenna Gain */
2087 wlc->band->antgain =
2088 (s8) getintvar(vars, (BAND_5G(bandtype) ? "ag1" : "ag0"));
2089 wlc_attach_antgain_init(wlc);
2095 static void wlc_timers_deinit(struct wlc_info *wlc)
2097 /* free timer state */
2099 wl_free_timer(wlc->wl, wlc->wdtimer);
2100 wlc->wdtimer = NULL;
2102 if (wlc->radio_timer) {
2103 wl_free_timer(wlc->wl, wlc->radio_timer);
2104 wlc->radio_timer = NULL;
2108 static void wlc_detach_module(struct wlc_info *wlc)
2111 wlc_antsel_detach(wlc->asi);
2116 wlc_ampdu_detach(wlc->ampdu);
2120 wlc_stf_detach(wlc);
2124 * Return a count of the number of driver callbacks still pending.
2126 * General policy is that wlc_detach can only dealloc/free software states. It can NOT
2127 * touch hardware registers since the d11core may be in reset and clock may not be available.
2128 * One exception is sb register access, which is possible if crystal is turned on
2129 * After "down" state, driver should avoid software timer with the exception of radio_monitor.
2131 uint wlc_detach(struct wlc_info *wlc)
2139 WL_TRACE("wl%d: %s\n", wlc->pub->unit, __func__);
2141 ASSERT(!wlc->pub->up);
2143 callbacks += wlc_bmac_detach(wlc);
2145 /* delete software timers */
2146 if (!wlc_radio_monitor_stop(wlc))
2150 wlc_eventq_detach(wlc->eventq);
2154 wlc_channel_mgr_detach(wlc->cmi);
2156 wlc_timers_deinit(wlc);
2158 wlc_detach_module(wlc);
2160 /* free other state */
2164 if (wlc->country_ie_override) {
2165 kfree(wlc->country_ie_override);
2166 wlc->country_ie_override = NULL;
2171 /* free dumpcb list */
2172 dumpcb_t *prev, *ptr;
2173 prev = ptr = wlc->dumpcb_head;
2179 wlc->dumpcb_head = NULL;
2182 /* Detach from iovar manager */
2183 wlc_module_unregister(wlc->pub, "wlc_iovars", wlc);
2185 while (wlc->tx_queues != NULL) {
2186 wlc_txq_free(wlc, wlc->osh, wlc->tx_queues);
2190 * consistency check: wlc_module_register/wlc_module_unregister calls
2191 * should match therefore nothing should be left here.
2193 for (i = 0; i < WLC_MAXMODULES; i++)
2194 ASSERT(wlc->modulecb[i].name[0] == '\0');
2196 wlc_detach_mfree(wlc, wlc->osh);
2200 /* update state that depends on the current value of "ap" */
2201 void wlc_ap_upd(struct wlc_info *wlc)
2203 if (AP_ENAB(wlc->pub))
2204 wlc->PLCPHdr_override = WLC_PLCP_AUTO; /* AP: short not allowed, but not enforced */
2206 wlc->PLCPHdr_override = WLC_PLCP_SHORT; /* STA-BSS; short capable */
2208 /* disable vlan_mode on AP since some legacy STAs cannot rx tagged pkts */
2209 wlc->vlan_mode = AP_ENAB(wlc->pub) ? OFF : AUTO;
2215 /* read hwdisable state and propagate to wlc flag */
2216 static void wlc_radio_hwdisable_upd(struct wlc_info *wlc)
2218 if (wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO || wlc->pub->hw_off)
2221 if (wlc_bmac_radio_read_hwdisabled(wlc->hw)) {
2222 mboolset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
2224 mboolclr(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
2228 /* return true if Minimum Power Consumption should be entered, false otherwise */
2229 bool wlc_is_non_delay_mpc(struct wlc_info *wlc)
2234 bool wlc_ismpc(struct wlc_info *wlc)
2236 return (wlc->mpc_delay_off == 0) && (wlc_is_non_delay_mpc(wlc));
2239 void wlc_radio_mpc_upd(struct wlc_info *wlc)
2241 bool mpc_radio, radio_state;
2244 * Clear the WL_RADIO_MPC_DISABLE bit when mpc feature is disabled
2245 * in case the WL_RADIO_MPC_DISABLE bit was set. Stop the radio
2246 * monitor also when WL_RADIO_MPC_DISABLE is the only reason that
2247 * the radio is going down.
2250 if (!wlc->pub->radio_disabled)
2252 mboolclr(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE);
2254 if (!wlc->pub->radio_disabled)
2255 wlc_radio_monitor_stop(wlc);
2260 * sync ismpc logic with WL_RADIO_MPC_DISABLE bit in wlc->pub->radio_disabled
2261 * to go ON, always call radio_upd synchronously
2262 * to go OFF, postpone radio_upd to later when context is safe(e.g. watchdog)
2265 (mboolisset(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE) ? OFF :
2267 mpc_radio = (wlc_ismpc(wlc) == true) ? OFF : ON;
2269 if (radio_state == ON && mpc_radio == OFF)
2270 wlc->mpc_delay_off = wlc->mpc_dlycnt;
2271 else if (radio_state == OFF && mpc_radio == ON) {
2272 mboolclr(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE);
2274 if (wlc->mpc_offcnt < WLC_MPC_THRESHOLD) {
2275 wlc->mpc_dlycnt = WLC_MPC_MAX_DELAYCNT;
2277 wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
2278 wlc->mpc_dur += OSL_SYSUPTIME() - wlc->mpc_laston_ts;
2280 /* Below logic is meant to capture the transition from mpc off to mpc on for reasons
2281 * other than wlc->mpc_delay_off keeping the mpc off. In that case reset
2282 * wlc->mpc_delay_off to wlc->mpc_dlycnt, so that we restart the countdown of mpc_delay_off
2284 if ((wlc->prev_non_delay_mpc == false) &&
2285 (wlc_is_non_delay_mpc(wlc) == true) && wlc->mpc_delay_off) {
2286 wlc->mpc_delay_off = wlc->mpc_dlycnt;
2288 wlc->prev_non_delay_mpc = wlc_is_non_delay_mpc(wlc);
2292 * centralized radio disable/enable function,
2293 * invoke radio enable/disable after updating hwradio status
2295 static void wlc_radio_upd(struct wlc_info *wlc)
2297 if (wlc->pub->radio_disabled)
2298 wlc_radio_disable(wlc);
2300 wlc_radio_enable(wlc);
2303 /* maintain LED behavior in down state */
2304 static void wlc_down_led_upd(struct wlc_info *wlc)
2306 ASSERT(!wlc->pub->up);
2308 /* maintain LEDs while in down state, turn on sbclk if not available yet */
2309 /* turn on sbclk if necessary */
2310 if (!AP_ENAB(wlc->pub)) {
2311 wlc_pllreq(wlc, true, WLC_PLLREQ_FLIP);
2313 wlc_pllreq(wlc, false, WLC_PLLREQ_FLIP);
2317 void wlc_radio_disable(struct wlc_info *wlc)
2319 if (!wlc->pub->up) {
2320 wlc_down_led_upd(wlc);
2324 wlc_radio_monitor_start(wlc);
2328 static void wlc_radio_enable(struct wlc_info *wlc)
2333 if (DEVICEREMOVED(wlc))
2336 if (!wlc->down_override) { /* imposed by wl down/out ioctl */
2341 /* periodical query hw radio button while driver is "down" */
2342 static void wlc_radio_timer(void *arg)
2344 struct wlc_info *wlc = (struct wlc_info *) arg;
2346 if (DEVICEREMOVED(wlc)) {
2347 WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
2352 /* cap mpc off count */
2353 if (wlc->mpc_offcnt < WLC_MPC_MAX_DELAYCNT)
2356 /* validate all the reasons driver could be down and running this radio_timer */
2357 ASSERT(wlc->pub->radio_disabled || wlc->down_override);
2358 wlc_radio_hwdisable_upd(wlc);
2362 static bool wlc_radio_monitor_start(struct wlc_info *wlc)
2364 /* Don't start the timer if HWRADIO feature is disabled */
2365 if (wlc->radio_monitor || (wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO))
2368 wlc->radio_monitor = true;
2369 wlc_pllreq(wlc, true, WLC_PLLREQ_RADIO_MON);
2370 wl_add_timer(wlc->wl, wlc->radio_timer, TIMER_INTERVAL_RADIOCHK, true);
2374 bool wlc_radio_monitor_stop(struct wlc_info *wlc)
2376 if (!wlc->radio_monitor)
2379 ASSERT((wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO) !=
2382 wlc->radio_monitor = false;
2383 wlc_pllreq(wlc, false, WLC_PLLREQ_RADIO_MON);
2384 return wl_del_timer(wlc->wl, wlc->radio_timer);
2387 /* bring the driver down, but don't reset hardware */
2388 void wlc_out(struct wlc_info *wlc)
2390 wlc_bmac_set_noreset(wlc->hw, true);
2393 wlc_bmac_set_noreset(wlc->hw, false);
2395 /* core clk is true in BMAC driver due to noreset, need to mirror it in HIGH */
2398 /* This will make sure that when 'up' is done
2399 * after 'out' it'll restore hardware (especially gpios)
2401 wlc->pub->hw_up = false;
2405 /* Verify the sanity of wlc->tx_prec_map. This can be done only by making sure that
2406 * if there is no packet pending for the FIFO, then the corresponding prec bits should be set
2407 * in prec_map. Of course, ignore this rule when block_datafifo is set
2409 static bool wlc_tx_prec_map_verify(struct wlc_info *wlc)
2411 /* For non-WME, both fifos have overlapping prec_map. So it's an error only if both
2414 if (!EDCF_ENAB(wlc->pub)) {
2415 if (!(WLC_TX_FIFO_CHECK(wlc, TX_DATA_FIFO) ||
2416 WLC_TX_FIFO_CHECK(wlc, TX_CTL_FIFO)))
2422 return WLC_TX_FIFO_CHECK(wlc, TX_AC_BK_FIFO)
2423 && WLC_TX_FIFO_CHECK(wlc, TX_AC_BE_FIFO)
2424 && WLC_TX_FIFO_CHECK(wlc, TX_AC_VI_FIFO)
2425 && WLC_TX_FIFO_CHECK(wlc, TX_AC_VO_FIFO);
2429 static void wlc_watchdog_by_timer(void *arg)
2431 struct wlc_info *wlc = (struct wlc_info *) arg;
2433 if (WLC_WATCHDOG_TBTT(wlc)) {
2434 /* set to normal osl watchdog period */
2435 wl_del_timer(wlc->wl, wlc->wdtimer);
2436 wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG,
2441 /* common watchdog code */
2442 static void wlc_watchdog(void *arg)
2444 struct wlc_info *wlc = (struct wlc_info *) arg;
2448 WL_TRACE("wl%d: wlc_watchdog\n", wlc->pub->unit);
2453 if (DEVICEREMOVED(wlc)) {
2454 WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
2459 /* increment second count */
2462 /* delay radio disable */
2463 if (wlc->mpc_delay_off) {
2464 if (--wlc->mpc_delay_off == 0) {
2465 mboolset(wlc->pub->radio_disabled,
2466 WL_RADIO_MPC_DISABLE);
2467 if (wlc->mpc && wlc_ismpc(wlc))
2468 wlc->mpc_offcnt = 0;
2469 wlc->mpc_laston_ts = OSL_SYSUPTIME();
2474 wlc_radio_mpc_upd(wlc);
2475 /* radio sync: sw/hw/mpc --> radio_disable/radio_enable */
2476 wlc_radio_hwdisable_upd(wlc);
2478 /* if ismpc, driver should be in down state if up/down is allowed */
2479 if (wlc->mpc && wlc_ismpc(wlc))
2480 ASSERT(!wlc->pub->up);
2481 /* if radio is disable, driver may be down, quit here */
2482 if (wlc->pub->radio_disabled)
2485 wlc_bmac_watchdog(wlc);
2487 /* occasionally sample mac stat counters to detect 16-bit counter wrap */
2488 if ((WLC_UPDATE_STATS(wlc))
2489 && (!(wlc->pub->now % SW_TIMER_MAC_STAT_UPD)))
2492 /* Manage TKIP countermeasures timers */
2493 FOREACH_BSS(wlc, i, cfg) {
2494 if (cfg->tk_cm_dt) {
2497 if (cfg->tk_cm_bt) {
2502 /* Call any registered watchdog handlers */
2503 for (i = 0; i < WLC_MAXMODULES; i++) {
2504 if (wlc->modulecb[i].watchdog_fn)
2505 wlc->modulecb[i].watchdog_fn(wlc->modulecb[i].hdl);
2508 if (WLCISNPHY(wlc->band) && !wlc->pub->tempsense_disable &&
2509 ((wlc->pub->now - wlc->tempsense_lasttime) >=
2510 WLC_TEMPSENSE_PERIOD)) {
2511 wlc->tempsense_lasttime = wlc->pub->now;
2512 wlc_tempsense_upd(wlc);
2514 /* BMAC_NOTE: for HIGH_ONLY driver, this seems being called after RPC bus failed */
2515 ASSERT(wlc_bmac_taclear(wlc->hw, true));
2517 /* Verify that tx_prec_map and fifos are in sync to avoid lock ups */
2518 ASSERT(wlc_tx_prec_map_verify(wlc));
2520 ASSERT(wlc_ps_check(wlc));
2523 /* make interface operational */
2524 int wlc_up(struct wlc_info *wlc)
2526 WL_TRACE("wl%d: %s:\n", wlc->pub->unit, __func__);
2528 /* HW is turned off so don't try to access it */
2529 if (wlc->pub->hw_off || DEVICEREMOVED(wlc))
2530 return BCME_RADIOOFF;
2532 if (!wlc->pub->hw_up) {
2533 wlc_bmac_hw_up(wlc->hw);
2534 wlc->pub->hw_up = true;
2537 if ((wlc->pub->boardflags & BFL_FEM)
2538 && (wlc->pub->sih->chip == BCM4313_CHIP_ID)) {
2539 if (wlc->pub->boardrev >= 0x1250
2540 && (wlc->pub->boardflags & BFL_FEM_BT)) {
2541 wlc_mhf(wlc, MHF5, MHF5_4313_GPIOCTRL,
2542 MHF5_4313_GPIOCTRL, WLC_BAND_ALL);
2544 wlc_mhf(wlc, MHF4, MHF4_EXTPA_ENABLE, MHF4_EXTPA_ENABLE,
2550 * Need to read the hwradio status here to cover the case where the system
2551 * is loaded with the hw radio disabled. We do not want to bring the driver up in this case.
2552 * if radio is disabled, abort up, lower power, start radio timer and return 0(for NDIS)
2553 * don't call radio_update to avoid looping wlc_up.
2555 * wlc_bmac_up_prep() returns either 0 or BCME_RADIOOFF only
2557 if (!wlc->pub->radio_disabled) {
2558 int status = wlc_bmac_up_prep(wlc->hw);
2559 if (status == BCME_RADIOOFF) {
2561 (wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE)) {
2563 wlc_bsscfg_t *bsscfg;
2564 mboolset(wlc->pub->radio_disabled,
2565 WL_RADIO_HW_DISABLE);
2567 FOREACH_BSS(wlc, idx, bsscfg) {
2568 if (!BSSCFG_STA(bsscfg)
2569 || !bsscfg->enable || !bsscfg->BSS)
2571 WL_ERROR("wl%d.%d: wlc_up: rfdisable -> " "wlc_bsscfg_disable()\n",
2572 wlc->pub->unit, idx);
2579 if (wlc->pub->radio_disabled) {
2580 wlc_radio_monitor_start(wlc);
2584 /* wlc_bmac_up_prep has done wlc_corereset(). so clk is on, set it */
2587 wlc_radio_monitor_stop(wlc);
2589 /* Set EDCF hostflags */
2590 if (EDCF_ENAB(wlc->pub)) {
2591 wlc_mhf(wlc, MHF1, MHF1_EDCF, MHF1_EDCF, WLC_BAND_ALL);
2593 wlc_mhf(wlc, MHF1, MHF1_EDCF, 0, WLC_BAND_ALL);
2596 if (WLC_WAR16165(wlc))
2597 wlc_mhf(wlc, MHF2, MHF2_PCISLOWCLKWAR, MHF2_PCISLOWCLKWAR,
2601 wlc->pub->up = true;
2603 if (wlc->bandinit_pending) {
2604 wlc_suspend_mac_and_wait(wlc);
2605 wlc_set_chanspec(wlc, wlc->default_bss->chanspec);
2606 wlc->bandinit_pending = false;
2607 wlc_enable_mac(wlc);
2610 wlc_bmac_up_finish(wlc->hw);
2612 /* other software states up after ISR is running */
2613 /* start APs that were to be brought up but are not up yet */
2614 /* if (AP_ENAB(wlc->pub)) wlc_restart_ap(wlc->ap); */
2616 /* Program the TX wme params with the current settings */
2617 wlc_wme_retries_write(wlc);
2619 /* start one second watchdog timer */
2620 ASSERT(!wlc->WDarmed);
2621 wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG, true);
2622 wlc->WDarmed = true;
2624 /* ensure antenna config is up to date */
2625 wlc_stf_phy_txant_upd(wlc);
2626 /* ensure LDPC config is in sync */
2627 wlc_ht_update_ldpc(wlc, wlc->stf->ldpc);
2632 /* Initialize the base precedence map for dequeueing from txq based on WME settings */
2633 static void wlc_tx_prec_map_init(struct wlc_info *wlc)
2635 wlc->tx_prec_map = WLC_PREC_BMP_ALL;
2636 memset(wlc->fifo2prec_map, 0, NFIFO * sizeof(u16));
2638 /* For non-WME, both fifos have overlapping MAXPRIO. So just disable all precedences
2639 * if either is full.
2641 if (!EDCF_ENAB(wlc->pub)) {
2642 wlc->fifo2prec_map[TX_DATA_FIFO] = WLC_PREC_BMP_ALL;
2643 wlc->fifo2prec_map[TX_CTL_FIFO] = WLC_PREC_BMP_ALL;
2645 wlc->fifo2prec_map[TX_AC_BK_FIFO] = WLC_PREC_BMP_AC_BK;
2646 wlc->fifo2prec_map[TX_AC_BE_FIFO] = WLC_PREC_BMP_AC_BE;
2647 wlc->fifo2prec_map[TX_AC_VI_FIFO] = WLC_PREC_BMP_AC_VI;
2648 wlc->fifo2prec_map[TX_AC_VO_FIFO] = WLC_PREC_BMP_AC_VO;
2652 static uint wlc_down_del_timer(struct wlc_info *wlc)
2660 * Mark the interface nonoperational, stop the software mechanisms,
2661 * disable the hardware, free any transient buffer state.
2662 * Return a count of the number of driver callbacks still pending.
2664 uint wlc_down(struct wlc_info *wlc)
2669 bool dev_gone = false;
2672 WL_TRACE("wl%d: %s:\n", wlc->pub->unit, __func__);
2674 /* check if we are already in the going down path */
2675 if (wlc->going_down) {
2676 WL_ERROR("wl%d: %s: Driver going down so return\n",
2677 wlc->pub->unit, __func__);
2683 /* in between, mpc could try to bring down again.. */
2684 wlc->going_down = true;
2686 callbacks += wlc_bmac_down_prep(wlc->hw);
2688 dev_gone = DEVICEREMOVED(wlc);
2690 /* Call any registered down handlers */
2691 for (i = 0; i < WLC_MAXMODULES; i++) {
2692 if (wlc->modulecb[i].down_fn)
2694 wlc->modulecb[i].down_fn(wlc->modulecb[i].hdl);
2697 /* cancel the watchdog timer */
2699 if (!wl_del_timer(wlc->wl, wlc->wdtimer))
2701 wlc->WDarmed = false;
2703 /* cancel all other timers */
2704 callbacks += wlc_down_del_timer(wlc);
2706 /* interrupt must have been blocked */
2707 ASSERT((wlc->macintmask == 0) || !wlc->pub->up);
2709 wlc->pub->up = false;
2711 wlc_phy_mute_upd(wlc->band->pi, false, PHY_MUTE_ALL);
2713 /* clear txq flow control */
2714 wlc_txflowcontrol_reset(wlc);
2716 /* flush tx queues */
2717 for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
2718 pktq_flush(wlc->osh, &qi->q, true, NULL, 0);
2719 ASSERT(pktq_empty(&qi->q));
2722 /* flush event queue.
2723 * Should be the last thing done after all the events are generated
2724 * Just delivers the events synchronously instead of waiting for a timer
2726 callbacks += wlc_eventq_down(wlc->eventq);
2728 callbacks += wlc_bmac_down_finish(wlc->hw);
2730 /* wlc_bmac_down_finish has done wlc_coredisable(). so clk is off */
2734 /* Verify all packets are flushed from the driver */
2735 if (wlc->osh->pktalloced != 0) {
2736 WL_ERROR("%d packets not freed at wlc_down!!!!!!\n",
2737 wlc->osh->pktalloced);
2740 /* Since all the packets should have been freed,
2741 * all callbacks should have been called
2743 for (i = 1; i <= wlc->pub->tunables->maxpktcb; i++)
2744 ASSERT(wlc->pkt_callback[i].fn == NULL);
2746 wlc->going_down = false;
2750 /* Set the current gmode configuration */
2751 int wlc_set_gmode(struct wlc_info *wlc, u8 gmode, bool config)
2756 /* Default to 54g Auto */
2757 s8 shortslot = WLC_SHORTSLOT_AUTO; /* Advertise and use shortslot (-1/0/1 Auto/Off/On) */
2758 bool shortslot_restrict = false; /* Restrict association to stations that support shortslot
2760 bool ignore_bcns = true; /* Ignore legacy beacons on the same channel */
2761 bool ofdm_basic = false; /* Make 6, 12, and 24 basic rates */
2762 int preamble = WLC_PLCP_LONG; /* Advertise and use short preambles (-1/0/1 Auto/Off/On) */
2763 bool preamble_restrict = false; /* Restrict association to stations that support short
2766 struct wlcband *band;
2768 /* if N-support is enabled, allow Gmode set as long as requested
2769 * Gmode is not GMODE_LEGACY_B
2771 if (N_ENAB(wlc->pub) && gmode == GMODE_LEGACY_B)
2772 return BCME_UNSUPPORTED;
2774 /* verify that we are dealing with 2G band and grab the band pointer */
2775 if (wlc->band->bandtype == WLC_BAND_2G)
2777 else if ((NBANDS(wlc) > 1) &&
2778 (wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype == WLC_BAND_2G))
2779 band = wlc->bandstate[OTHERBANDUNIT(wlc)];
2781 return BCME_BADBAND;
2783 /* Legacy or bust when no OFDM is supported by regulatory */
2784 if ((wlc_channel_locale_flags_in_band(wlc->cmi, band->bandunit) &
2785 WLC_NO_OFDM) && (gmode != GMODE_LEGACY_B))
2788 /* update configuration value */
2790 wlc_protection_upd(wlc, WLC_PROT_G_USER, gmode);
2792 /* Clear supported rates filter */
2793 memset(&wlc->sup_rates_override, 0, sizeof(wlc_rateset_t));
2795 /* Clear rateset override */
2796 memset(&rs, 0, sizeof(wlc_rateset_t));
2799 case GMODE_LEGACY_B:
2800 shortslot = WLC_SHORTSLOT_OFF;
2801 wlc_rateset_copy(&gphy_legacy_rates, &rs);
2806 if (AP_ENAB(wlc->pub))
2807 wlc_rateset_copy(&cck_rates, &wlc->sup_rates_override);
2811 /* Accept defaults */
2816 preamble = WLC_PLCP_SHORT;
2817 preamble_restrict = true;
2820 case GMODE_PERFORMANCE:
2821 if (AP_ENAB(wlc->pub)) /* Put all rates into the Supported Rates element */
2822 wlc_rateset_copy(&cck_ofdm_rates,
2823 &wlc->sup_rates_override);
2825 shortslot = WLC_SHORTSLOT_ON;
2826 shortslot_restrict = true;
2828 preamble = WLC_PLCP_SHORT;
2829 preamble_restrict = true;
2834 WL_ERROR("wl%d: %s: invalid gmode %d\n",
2835 wlc->pub->unit, __func__, gmode);
2836 return BCME_UNSUPPORTED;
2840 * If we are switching to gmode == GMODE_LEGACY_B,
2841 * clean up rate info that may refer to OFDM rates.
2843 if ((gmode == GMODE_LEGACY_B) && (band->gmode != GMODE_LEGACY_B)) {
2844 band->gmode = gmode;
2845 if (band->rspec_override && !IS_CCK(band->rspec_override)) {
2846 band->rspec_override = 0;
2847 wlc_reprate_init(wlc);
2849 if (band->mrspec_override && !IS_CCK(band->mrspec_override)) {
2850 band->mrspec_override = 0;
2854 band->gmode = gmode;
2856 wlc->ignore_bcns = ignore_bcns;
2858 wlc->shortslot_override = shortslot;
2860 if (AP_ENAB(wlc->pub)) {
2861 /* wlc->ap->shortslot_restrict = shortslot_restrict; */
2862 wlc->PLCPHdr_override =
2864 WLC_PLCP_LONG) ? WLC_PLCP_SHORT : WLC_PLCP_AUTO;
2867 if ((AP_ENAB(wlc->pub) && preamble != WLC_PLCP_LONG)
2868 || preamble == WLC_PLCP_SHORT)
2869 wlc->default_bss->capability |= DOT11_CAP_SHORT;
2871 wlc->default_bss->capability &= ~DOT11_CAP_SHORT;
2873 /* Update shortslot capability bit for AP and IBSS */
2874 if ((AP_ENAB(wlc->pub) && shortslot == WLC_SHORTSLOT_AUTO) ||
2875 shortslot == WLC_SHORTSLOT_ON)
2876 wlc->default_bss->capability |= DOT11_CAP_SHORTSLOT;
2878 wlc->default_bss->capability &= ~DOT11_CAP_SHORTSLOT;
2880 /* Use the default 11g rateset */
2882 wlc_rateset_copy(&cck_ofdm_rates, &rs);
2885 for (i = 0; i < rs.count; i++) {
2886 if (rs.rates[i] == WLC_RATE_6M
2887 || rs.rates[i] == WLC_RATE_12M
2888 || rs.rates[i] == WLC_RATE_24M)
2889 rs.rates[i] |= WLC_RATE_FLAG;
2893 /* Set default bss rateset */
2894 wlc->default_bss->rateset.count = rs.count;
2895 bcopy((char *)rs.rates, (char *)wlc->default_bss->rateset.rates,
2896 sizeof(wlc->default_bss->rateset.rates));
2901 static int wlc_nmode_validate(struct wlc_info *wlc, s32 nmode)
2913 if (!(WLC_PHY_11N_CAP(wlc->band)))
2925 int wlc_set_nmode(struct wlc_info *wlc, s32 nmode)
2930 err = wlc_nmode_validate(wlc, nmode);
2937 wlc->pub->_n_enab = OFF;
2938 wlc->default_bss->flags &= ~WLC_BSS_HT;
2939 /* delete the mcs rates from the default and hw ratesets */
2940 wlc_rateset_mcs_clear(&wlc->default_bss->rateset);
2941 for (i = 0; i < NBANDS(wlc); i++) {
2942 memset(wlc->bandstate[i]->hw_rateset.mcs, 0,
2944 if (IS_MCS(wlc->band->rspec_override)) {
2945 wlc->bandstate[i]->rspec_override = 0;
2946 wlc_reprate_init(wlc);
2948 if (IS_MCS(wlc->band->mrspec_override))
2949 wlc->bandstate[i]->mrspec_override = 0;
2954 if (wlc->stf->txstreams == WL_11N_3x3)
2960 ASSERT(WLC_PHY_11N_CAP(wlc->band));
2961 /* force GMODE_AUTO if NMODE is ON */
2962 wlc_set_gmode(wlc, GMODE_AUTO, true);
2963 if (nmode == WL_11N_3x3)
2964 wlc->pub->_n_enab = SUPPORT_HT;
2966 wlc->pub->_n_enab = SUPPORT_11N;
2967 wlc->default_bss->flags |= WLC_BSS_HT;
2968 /* add the mcs rates to the default and hw ratesets */
2969 wlc_rateset_mcs_build(&wlc->default_bss->rateset,
2970 wlc->stf->txstreams);
2971 for (i = 0; i < NBANDS(wlc); i++)
2972 memcpy(wlc->bandstate[i]->hw_rateset.mcs,
2973 wlc->default_bss->rateset.mcs, MCSSET_LEN);
2984 static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg)
2986 wlc_rateset_t rs, new;
2989 bcopy((char *)rs_arg, (char *)&rs, sizeof(wlc_rateset_t));
2991 /* check for bad count value */
2992 if ((rs.count == 0) || (rs.count > WLC_NUMRATES))
2993 return BCME_BADRATESET;
2995 /* try the current band */
2996 bandunit = wlc->band->bandunit;
2997 bcopy((char *)&rs, (char *)&new, sizeof(wlc_rateset_t));
2998 if (wlc_rate_hwrs_filter_sort_validate
2999 (&new, &wlc->bandstate[bandunit]->hw_rateset, true,
3000 wlc->stf->txstreams))
3003 /* try the other band */
3004 if (IS_MBAND_UNLOCKED(wlc)) {
3005 bandunit = OTHERBANDUNIT(wlc);
3006 bcopy((char *)&rs, (char *)&new, sizeof(wlc_rateset_t));
3007 if (wlc_rate_hwrs_filter_sort_validate(&new,
3009 bandstate[bandunit]->
3011 wlc->stf->txstreams))
3018 /* apply new rateset */
3019 bcopy((char *)&new, (char *)&wlc->default_bss->rateset,
3020 sizeof(wlc_rateset_t));
3021 bcopy((char *)&new, (char *)&wlc->bandstate[bandunit]->defrateset,
3022 sizeof(wlc_rateset_t));
3026 /* simplified integer set interface for common ioctl handler */
3027 int wlc_set(struct wlc_info *wlc, int cmd, int arg)
3029 return wlc_ioctl(wlc, cmd, (void *)&arg, sizeof(arg), NULL);
3032 /* simplified integer get interface for common ioctl handler */
3033 int wlc_get(struct wlc_info *wlc, int cmd, int *arg)
3035 return wlc_ioctl(wlc, cmd, arg, sizeof(int), NULL);
3038 static void wlc_ofdm_rateset_war(struct wlc_info *wlc)
3043 if (wlc->cfg->associated)
3044 r = wlc->cfg->current_bss->rateset.rates[0];
3046 r = wlc->default_bss->rateset.rates[0];
3048 wlc_phy_ofdm_rateset_war(wlc->band->pi, war);
3054 wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
3055 struct wlc_if *wlcif)
3057 return _wlc_ioctl(wlc, cmd, arg, len, wlcif);
3060 /* common ioctl handler. return: 0=ok, -1=error, positive=particular error */
3062 _wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
3063 struct wlc_if *wlcif)
3070 struct scb *nextscb;
3074 wlc_bsscfg_t *bsscfg;
3075 struct osl_info *osh;
3076 wlc_bss_info_t *current_bss;
3078 /* update bsscfg pointer */
3079 bsscfg = NULL; /* XXX: Hack bsscfg to be size one and use this globally */
3082 /* initialize the following to get rid of compiler warning */
3088 /* If the device is turned off, then it's not "removed" */
3089 if (!wlc->pub->hw_off && DEVICEREMOVED(wlc)) {
3090 WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
3095 ASSERT(!(wlc->pub->hw_off && wlc->pub->up));
3097 /* default argument is generic integer */
3098 pval = arg ? (int *)arg:NULL;
3100 /* This will prevent the misaligned access */
3101 if (pval && (u32) len >= sizeof(val))
3102 bcopy(pval, &val, sizeof(val));
3106 /* bool conversion to avoid duplication below */
3107 bool_val = val != 0;
3109 if (cmd != WLC_SET_CHANNEL)
3110 WL_NONE("WLC_IOCTL: cmd %d val 0x%x (%d) len %d\n",
3111 cmd, (uint)val, val, len);
3117 /* A few commands don't need any arguments; all the others do. */
3125 case WLC_START_CHANNEL_QA:
3130 if ((arg == NULL) || (len <= 0)) {
3131 WL_ERROR("wl%d: %s: Command %d needs arguments\n",
3132 wlc->pub->unit, __func__, cmd);
3133 bcmerror = BCME_BADARG;
3141 case WLC_GET_MSGLEVEL:
3142 *pval = wl_msg_level;
3145 case WLC_SET_MSGLEVEL:
3150 case WLC_GET_INSTANCE:
3151 *pval = wlc->pub->unit;
3154 case WLC_GET_CHANNEL:{
3155 channel_info_t *ci = (channel_info_t *) arg;
3157 ASSERT(len > (int)sizeof(ci));
3160 CHSPEC_CHANNEL(WLC_BAND_PI_RADIO_CHANSPEC);
3161 ci->target_channel =
3162 CHSPEC_CHANNEL(wlc->default_bss->chanspec);
3163 ci->scan_channel = 0;
3168 case WLC_SET_CHANNEL:{
3169 chanspec_t chspec = CH20MHZ_CHSPEC(val);
3171 if (val < 0 || val > MAXCHANNEL) {
3172 bcmerror = BCME_OUTOFRANGECHAN;
3176 if (!wlc_valid_chanspec_db(wlc->cmi, chspec)) {
3177 bcmerror = BCME_BADCHAN;
3181 if (!wlc->pub->up && IS_MBAND_UNLOCKED(wlc)) {
3182 if (wlc->band->bandunit !=
3183 CHSPEC_WLCBANDUNIT(chspec))
3184 wlc->bandinit_pending = true;
3186 wlc->bandinit_pending = false;
3189 wlc->default_bss->chanspec = chspec;
3190 /* wlc_BSSinit() will sanitize the rateset before using it.. */
3191 if (wlc->pub->up && !wlc->pub->associated &&
3192 (WLC_BAND_PI_RADIO_CHANSPEC != chspec)) {
3193 wlc_set_home_chanspec(wlc, chspec);
3194 wlc_suspend_mac_and_wait(wlc);
3195 wlc_set_chanspec(wlc, chspec);
3196 wlc_enable_mac(wlc);
3202 case WLC_GET_UCFLAGS:
3203 if (!wlc->pub->up) {
3204 bcmerror = BCME_NOTUP;
3208 /* optional band is stored in the second integer of incoming buffer */
3211 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3213 /* bcmerror checking */
3214 bcmerror = wlc_iocregchk(wlc, band);
3218 if (val >= MHFMAX) {
3219 bcmerror = BCME_RANGE;
3223 *pval = wlc_bmac_mhf_get(wlc->hw, (u8) val, WLC_BAND_AUTO);
3226 case WLC_SET_UCFLAGS:
3227 if (!wlc->pub->up) {
3228 bcmerror = BCME_NOTUP;
3232 /* optional band is stored in the second integer of incoming buffer */
3235 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3237 /* bcmerror checking */
3238 bcmerror = wlc_iocregchk(wlc, band);
3244 bcmerror = BCME_RANGE;
3248 wlc_mhf(wlc, (u8) i, 0xffff, (u16) (val >> NBITS(u16)),
3255 /* optional band is stored in the second integer of incoming buffer */
3258 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3260 /* bcmerror checking */
3261 bcmerror = wlc_iocregchk(wlc, band);
3266 bcmerror = BCME_BADADDR;
3270 *pval = wlc_read_shm(wlc, (u16) val);
3276 /* optional band is stored in the second integer of incoming buffer */
3279 (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
3281 /* bcmerror checking */
3282 bcmerror = wlc_iocregchk(wlc, band);
3287 bcmerror = BCME_BADADDR;
3291 wlc_write_shm(wlc, (u16) val,
3292 (u16) (val >> NBITS(u16)));
3295 case WLC_R_REG: /* MAC registers */
3297 r = (rw_reg_t *) arg;
3298 band = WLC_BAND_AUTO;
3300 if (len < (int)(sizeof(rw_reg_t) - sizeof(uint))) {
3301 bcmerror = BCME_BUFTOOSHORT;
3305 if (len >= (int)sizeof(rw_reg_t))
3308 /* bcmerror checking */
3309 bcmerror = wlc_iocregchk(wlc, band);
3313 if ((r->byteoff + r->size) > sizeof(d11regs_t)) {
3314 bcmerror = BCME_BADADDR;
3317 if (r->size == sizeof(u32))
3320 (u32 *)((unsigned char *)(unsigned long)regs +
3322 else if (r->size == sizeof(u16))
3325 (u16 *)((unsigned char *)(unsigned long)regs +
3328 bcmerror = BCME_BADADDR;
3333 r = (rw_reg_t *) arg;
3334 band = WLC_BAND_AUTO;
3336 if (len < (int)(sizeof(rw_reg_t) - sizeof(uint))) {
3337 bcmerror = BCME_BUFTOOSHORT;
3341 if (len >= (int)sizeof(rw_reg_t))
3344 /* bcmerror checking */
3345 bcmerror = wlc_iocregchk(wlc, band);
3349 if (r->byteoff + r->size > sizeof(d11regs_t)) {
3350 bcmerror = BCME_BADADDR;
3353 if (r->size == sizeof(u32))
3355 (u32 *)((unsigned char *)(unsigned long) regs +
3356 r->byteoff), r->val);
3357 else if (r->size == sizeof(u16))
3359 (u16 *)((unsigned char *)(unsigned long) regs +
3360 r->byteoff), r->val);
3362 bcmerror = BCME_BADADDR;
3367 *pval = wlc->stf->txant;
3371 bcmerror = wlc_stf_ant_txant_validate(wlc, (s8) val);
3375 wlc->stf->txant = (s8) val;
3377 /* if down, we are done */
3381 wlc_suspend_mac_and_wait(wlc);
3383 wlc_stf_phy_txant_upd(wlc);
3384 wlc_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec);
3386 wlc_enable_mac(wlc);
3390 case WLC_GET_ANTDIV:{
3393 /* return configured value if core is down */
3394 if (!wlc->pub->up) {
3395 *pval = wlc->stf->ant_rx_ovr;
3398 if (wlc_phy_ant_rxdiv_get
3399 (wlc->band->pi, &phy_antdiv))
3400 *pval = (int)phy_antdiv;
3402 *pval = (int)wlc->stf->ant_rx_ovr;
3407 case WLC_SET_ANTDIV:
3408 /* values are -1=driver default, 0=force0, 1=force1, 2=start1, 3=start0 */
3409 if ((val < -1) || (val > 3)) {
3410 bcmerror = BCME_RANGE;
3415 val = ANT_RX_DIV_DEF;
3417 wlc->stf->ant_rx_ovr = (u8) val;
3418 wlc_phy_ant_rxdiv_set(wlc->band->pi, (u8) val);
3421 case WLC_GET_RX_ANT:{ /* get latest used rx antenna */
3424 if (!wlc->pub->up) {
3425 bcmerror = BCME_NOTUP;
3429 rxstatus = R_REG(wlc->osh, &wlc->regs->phyrxstatus0);
3430 if (rxstatus == 0xdead || rxstatus == (u16) -1) {
3431 bcmerror = BCME_ERROR;
3434 *pval = (rxstatus & PRXS0_RXANT_UPSUBBAND) ? 1 : 0;
3439 case WLC_GET_UCANTDIV:
3441 bcmerror = BCME_NOCLK;
3446 (wlc_bmac_mhf_get(wlc->hw, MHF1, WLC_BAND_AUTO) &
3450 case WLC_SET_UCANTDIV:{
3451 if (!wlc->pub->up) {
3452 bcmerror = BCME_NOTUP;
3456 /* if multiband, band must be locked */
3457 if (IS_MBAND_UNLOCKED(wlc)) {
3458 bcmerror = BCME_NOTBANDLOCKED;
3462 /* 4322 supports antdiv in phy, no need to set it to ucode */
3463 if (WLCISNPHY(wlc->band)
3464 && D11REV_IS(wlc->pub->corerev, 16)) {
3465 WL_ERROR("wl%d: can't set ucantdiv for 4322\n",
3467 bcmerror = BCME_UNSUPPORTED;
3469 wlc_mhf(wlc, MHF1, MHF1_ANTDIV,
3470 (val ? MHF1_ANTDIV : 0), WLC_BAND_AUTO);
3473 #endif /* defined(BCMDBG) */
3480 if (val >= 1 && val <= RETRY_SHORT_MAX) {
3482 wlc->SRL = (u16) val;
3484 wlc_bmac_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
3486 for (ac = 0; ac < AC_COUNT; ac++) {
3487 WLC_WME_RETRY_SHORT_SET(wlc, ac, wlc->SRL);
3489 wlc_wme_retries_write(wlc);
3491 bcmerror = BCME_RANGE;
3499 if (val >= 1 && val <= 255) {
3501 wlc->LRL = (u16) val;
3503 wlc_bmac_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
3505 for (ac = 0; ac < AC_COUNT; ac++) {
3506 WLC_WME_RETRY_LONG_SET(wlc, ac, wlc->LRL);
3508 wlc_wme_retries_write(wlc);
3510 bcmerror = BCME_RANGE;
3514 *pval = wlc->band->CWmin;
3519 bcmerror = BCME_NOCLK;
3523 if (val >= 1 && val <= 255) {
3524 wlc_set_cwmin(wlc, (u16) val);
3526 bcmerror = BCME_RANGE;
3530 *pval = wlc->band->CWmax;
3535 bcmerror = BCME_NOCLK;
3539 if (val >= 255 && val <= 2047) {
3540 wlc_set_cwmax(wlc, (u16) val);
3542 bcmerror = BCME_RANGE;
3545 case WLC_GET_RADIO: /* use mask if don't want to expose some internal bits */
3546 *pval = wlc->pub->radio_disabled;
3549 case WLC_SET_RADIO:{ /* 32 bits input, higher 16 bits are mask, lower 16 bits are value to
3552 u16 radiomask, radioval;
3554 WL_RADIO_SW_DISABLE | WL_RADIO_HW_DISABLE;
3557 radiomask = (val & 0xffff0000) >> 16;
3558 radioval = val & 0x0000ffff;
3560 if ((radiomask == 0) || (radiomask & ~validbits)
3561 || (radioval & ~validbits)
3562 || ((radioval & ~radiomask) != 0)) {
3563 WL_ERROR("SET_RADIO with wrong bits 0x%x\n",
3565 bcmerror = BCME_RANGE;
3570 (wlc->pub->radio_disabled & ~radiomask) | radioval;
3571 wlc->pub->radio_disabled = new;
3573 wlc_radio_hwdisable_upd(wlc);
3578 case WLC_GET_PHYTYPE:
3579 *pval = WLC_PHYTYPE(wlc->band->phytype);
3584 if ((val >= 0) && (val < WLC_MAX_WSEC_KEYS(wlc))) {
3587 wsec_key_t *src_key = wlc->wsec_keys[val];
3589 if (len < (int)sizeof(key)) {
3590 bcmerror = BCME_BUFTOOSHORT;
3594 memset((char *)&key, 0, sizeof(key));
3596 key.index = src_key->id;
3597 key.len = src_key->len;
3598 bcopy(src_key->data, key.data, key.len);
3599 key.algo = src_key->algo;
3600 if (WSEC_SOFTKEY(wlc, src_key, bsscfg))
3601 key.flags |= WL_SOFT_KEY;
3602 if (src_key->flags & WSEC_PRIMARY_KEY)
3603 key.flags |= WL_PRIMARY_KEY;
3605 bcopy(src_key->ea.octet, key.ea.octet,
3609 bcopy((char *)&key, arg, sizeof(key));
3611 bcmerror = BCME_BADKEYIDX;
3613 #endif /* defined(BCMDBG) */
3617 wlc_iovar_op(wlc, "wsec_key", NULL, 0, arg, len, IOV_SET,
3621 case WLC_GET_KEY_SEQ:{
3624 if (len < DOT11_WPA_KEY_RSC_LEN) {
3625 bcmerror = BCME_BUFTOOSHORT;
3629 /* Return the key's tx iv as an EAPOL sequence counter.
3630 * This will be used to supply the RSC value to a supplicant.
3631 * The format is 8 bytes, with least significant in seq[0].
3634 key = WSEC_KEY(wlc, val);
3635 if ((val >= 0) && (val < WLC_MAX_WSEC_KEYS(wlc)) &&
3637 u8 seq[DOT11_WPA_KEY_RSC_LEN];
3640 /* group keys in WPA-NONE (IBSS only, AES and TKIP) use a global TXIV */
3641 if ((bsscfg->WPA_auth & WPA_AUTH_NONE) &&
3642 is_zero_ether_addr(key->ea.octet)) {
3643 lo = bsscfg->wpa_none_txiv.lo;
3644 hi = bsscfg->wpa_none_txiv.hi;
3650 /* format the buffer, low to high */
3652 seq[1] = (lo >> 8) & 0xff;
3654 seq[3] = (hi >> 8) & 0xff;
3655 seq[4] = (hi >> 16) & 0xff;
3656 seq[5] = (hi >> 24) & 0xff;
3660 bcopy((char *)seq, arg, sizeof(seq));
3662 bcmerror = BCME_BADKEYIDX;
3667 case WLC_GET_CURR_RATESET:{
3668 wl_rateset_t *ret_rs = (wl_rateset_t *) arg;
3671 if (bsscfg->associated)
3672 rs = ¤t_bss->rateset;
3674 rs = &wlc->default_bss->rateset;
3676 if (len < (int)(rs->count + sizeof(rs->count))) {
3677 bcmerror = BCME_BUFTOOSHORT;
3681 /* Copy only legacy rateset section */
3682 ret_rs->count = rs->count;
3683 bcopy(&rs->rates, &ret_rs->rates, rs->count);
3687 case WLC_GET_RATESET:{
3689 wl_rateset_t *ret_rs = (wl_rateset_t *) arg;
3691 memset(&rs, 0, sizeof(wlc_rateset_t));
3692 wlc_default_rateset(wlc, (wlc_rateset_t *) &rs);
3694 if (len < (int)(rs.count + sizeof(rs.count))) {
3695 bcmerror = BCME_BUFTOOSHORT;
3699 /* Copy only legacy rateset section */
3700 ret_rs->count = rs.count;
3701 bcopy(&rs.rates, &ret_rs->rates, rs.count);
3705 case WLC_SET_RATESET:{
3707 wl_rateset_t *in_rs = (wl_rateset_t *) arg;
3709 if (len < (int)(in_rs->count + sizeof(in_rs->count))) {
3710 bcmerror = BCME_BUFTOOSHORT;
3714 if (in_rs->count > WLC_NUMRATES) {
3715 bcmerror = BCME_BUFTOOLONG;
3719 memset(&rs, 0, sizeof(wlc_rateset_t));
3721 /* Copy only legacy rateset section */
3722 rs.count = in_rs->count;
3723 bcopy(&in_rs->rates, &rs.rates, rs.count);
3725 /* merge rateset coming in with the current mcsset */
3726 if (N_ENAB(wlc->pub)) {
3727 if (bsscfg->associated)
3728 bcopy(¤t_bss->rateset.mcs[0],
3729 rs.mcs, MCSSET_LEN);
3731 bcopy(&wlc->default_bss->rateset.mcs[0],
3732 rs.mcs, MCSSET_LEN);
3735 bcmerror = wlc_set_rateset(wlc, &rs);
3738 wlc_ofdm_rateset_war(wlc);
3743 case WLC_GET_BCNPRD:
3744 if (BSSCFG_STA(bsscfg) && bsscfg->BSS && bsscfg->associated)
3745 *pval = current_bss->beacon_period;
3747 *pval = wlc->default_bss->beacon_period;
3750 case WLC_SET_BCNPRD:
3751 /* range [1, 0xffff] */
3752 if (val >= DOT11_MIN_BEACON_PERIOD
3753 && val <= DOT11_MAX_BEACON_PERIOD) {
3754 wlc->default_bss->beacon_period = (u16) val;
3756 bcmerror = BCME_RANGE;
3759 case WLC_GET_DTIMPRD:
3760 if (BSSCFG_STA(bsscfg) && bsscfg->BSS && bsscfg->associated)
3761 *pval = current_bss->dtim_period;
3763 *pval = wlc->default_bss->dtim_period;
3766 case WLC_SET_DTIMPRD:
3767 /* range [1, 0xff] */
3768 if (val >= DOT11_MIN_DTIM_PERIOD
3769 && val <= DOT11_MAX_DTIM_PERIOD) {
3770 wlc->default_bss->dtim_period = (u8) val;
3772 bcmerror = BCME_RANGE;
3781 if ((val >= PM_OFF) && (val <= PM_MAX)) {
3785 /* Change watchdog driver to align watchdog with tbtt if possible */
3786 wlc_watchdog_upd(wlc, PS_ALLOWED(wlc));
3788 bcmerror = BCME_ERROR;
3790 #endif /* SUPPORT_PS */
3795 if (AP_ENAB(wlc->pub)) {
3796 bcmerror = BCME_NOTSTA;
3803 if (AP_ENAB(wlc->pub)) {
3804 bcmerror = BCME_NOTSTA;
3808 wlc->wake = val ? true : false;
3810 /* if down, we're done */
3814 /* apply to the mac */
3815 wlc_set_ps_ctrl(wlc);
3818 #endif /* SUPPORT_PS */
3820 case WLC_GET_REVINFO:
3821 bcmerror = wlc_get_revision_info(wlc, arg, (uint) len);
3825 *pval = (int)AP_ENAB(wlc->pub);
3829 if (bsscfg->associated)
3830 *pval = (int)current_bss->atim_window;
3832 *pval = (int)wlc->default_bss->atim_window;
3836 wlc->default_bss->atim_window = (u32) val;
3839 case WLC_GET_PKTCNTS:{
3840 get_pktcnt_t *pktcnt = (get_pktcnt_t *) pval;
3841 if (WLC_UPDATE_STATS(wlc))
3843 pktcnt->rx_good_pkt = WLCNTVAL(wlc->pub->_cnt->rxframe);
3844 pktcnt->rx_bad_pkt = WLCNTVAL(wlc->pub->_cnt->rxerror);
3845 pktcnt->tx_good_pkt =
3846 WLCNTVAL(wlc->pub->_cnt->txfrmsnt);
3847 pktcnt->tx_bad_pkt =
3848 WLCNTVAL(wlc->pub->_cnt->txerror) +
3849 WLCNTVAL(wlc->pub->_cnt->txfail);
3850 if (len >= (int)sizeof(get_pktcnt_t)) {
3851 /* Be backward compatible - only if buffer is large enough */
3852 pktcnt->rx_ocast_good_pkt =
3853 WLCNTVAL(wlc->pub->_cnt->rxmfrmocast);
3858 #ifdef SUPPORT_HWKEY
3861 wlc_iovar_op(wlc, "wsec", NULL, 0, arg, len, IOV_GET,
3867 wlc_iovar_op(wlc, "wsec", NULL, 0, arg, len, IOV_SET,
3871 case WLC_GET_WPA_AUTH:
3872 *pval = (int)bsscfg->WPA_auth;
3875 case WLC_SET_WPA_AUTH:
3876 /* change of WPA_Auth modifies the PS_ALLOWED state */
3877 if (BSSCFG_STA(bsscfg)) {
3878 bsscfg->WPA_auth = (u16) val;
3880 bsscfg->WPA_auth = (u16) val;
3882 #endif /* SUPPORT_HWKEY */
3884 case WLC_GET_BANDLIST:
3885 /* count of number of bands, followed by each band type */
3886 *pval++ = NBANDS(wlc);
3887 *pval++ = wlc->band->bandtype;
3888 if (NBANDS(wlc) > 1)
3889 *pval++ = wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype;
3893 *pval = wlc->bandlocked ? wlc->band->bandtype : WLC_BAND_AUTO;
3896 case WLC_GET_PHYLIST:
3898 unsigned char *cp = arg;
3900 bcmerror = BCME_BUFTOOSHORT;
3904 if (WLCISNPHY(wlc->band)) {
3906 } else if (WLCISLCNPHY(wlc->band)) {
3908 } else if (WLCISSSLPNPHY(wlc->band)) {
3915 case WLC_GET_SHORTSLOT:
3916 *pval = wlc->shortslot;
3919 case WLC_GET_SHORTSLOT_OVERRIDE:
3920 *pval = wlc->shortslot_override;
3923 case WLC_SET_SHORTSLOT_OVERRIDE:
3924 if ((val != WLC_SHORTSLOT_AUTO) &&
3925 (val != WLC_SHORTSLOT_OFF) && (val != WLC_SHORTSLOT_ON)) {
3926 bcmerror = BCME_RANGE;
3930 wlc->shortslot_override = (s8) val;
3932 /* shortslot is an 11g feature, so no more work if we are
3933 * currently on the 5G band
3935 if (BAND_5G(wlc->band->bandtype))
3938 if (wlc->pub->up && wlc->pub->associated) {
3939 /* let watchdog or beacon processing update shortslot */
3940 } else if (wlc->pub->up) {
3941 /* unassociated shortslot is off */
3942 wlc_switch_shortslot(wlc, false);
3944 /* driver is down, so just update the wlc_info value */
3945 if (wlc->shortslot_override == WLC_SHORTSLOT_AUTO) {
3946 wlc->shortslot = false;
3949 (wlc->shortslot_override ==
3956 case WLC_GET_LEGACY_ERP:
3957 *pval = wlc->include_legacy_erp;
3960 case WLC_SET_LEGACY_ERP:
3961 if (wlc->include_legacy_erp == bool_val)
3964 wlc->include_legacy_erp = bool_val;
3966 if (AP_ENAB(wlc->pub) && wlc->clk) {
3967 wlc_update_beacon(wlc);
3968 wlc_update_probe_resp(wlc, true);
3973 if (wlc->band->bandtype == WLC_BAND_2G)
3974 *pval = wlc->band->gmode;
3975 else if (NBANDS(wlc) > 1)
3976 *pval = wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode;
3980 if (!wlc->pub->associated)
3981 bcmerror = wlc_set_gmode(wlc, (u8) val, true);
3983 bcmerror = BCME_ASSOCIATED;
3988 case WLC_GET_GMODE_PROTECTION:
3989 *pval = wlc->protection->_g;
3992 case WLC_GET_PROTECTION_CONTROL:
3993 *pval = wlc->protection->overlap;
3996 case WLC_SET_PROTECTION_CONTROL:
3997 if ((val != WLC_PROTECTION_CTL_OFF) &&
3998 (val != WLC_PROTECTION_CTL_LOCAL) &&
3999 (val != WLC_PROTECTION_CTL_OVERLAP)) {
4000 bcmerror = BCME_RANGE;
4004 wlc_protection_upd(wlc, WLC_PROT_OVERLAP, (s8) val);
4006 /* Current g_protection will sync up to the specified control alg in watchdog
4007 * if the driver is up and associated.
4008 * If the driver is down or not associated, the control setting has no effect.
4012 case WLC_GET_GMODE_PROTECTION_OVERRIDE:
4013 *pval = wlc->protection->g_override;
4016 case WLC_SET_GMODE_PROTECTION_OVERRIDE:
4017 if ((val != WLC_PROTECTION_AUTO) &&
4018 (val != WLC_PROTECTION_OFF) && (val != WLC_PROTECTION_ON)) {
4019 bcmerror = BCME_RANGE;
4023 wlc_protection_upd(wlc, WLC_PROT_G_OVR, (s8) val);
4027 case WLC_SET_SUP_RATESET_OVERRIDE:{
4028 wlc_rateset_t rs, new;
4031 if (len < (int)sizeof(wlc_rateset_t)) {
4032 bcmerror = BCME_BUFTOOSHORT;
4035 bcopy((char *)arg, (char *)&rs, sizeof(wlc_rateset_t));
4037 /* check for bad count value */
4038 if (rs.count > WLC_NUMRATES) {
4039 bcmerror = BCME_BADRATESET; /* invalid rateset */
4043 /* this command is only appropriate for gmode operation */
4044 if (!(wlc->band->gmode ||
4046 && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) {
4047 bcmerror = BCME_BADBAND; /* gmode only command when not in gmode */
4051 /* check for an empty rateset to clear the override */
4052 if (rs.count == 0) {
4053 memset(&wlc->sup_rates_override, 0,
4054 sizeof(wlc_rateset_t));
4058 /* validate rateset by comparing pre and post sorted against 11g hw rates */
4059 wlc_rateset_filter(&rs, &new, false, WLC_RATES_CCK_OFDM,
4060 RATE_MASK, BSS_N_ENAB(wlc, bsscfg));
4061 wlc_rate_hwrs_filter_sort_validate(&new,
4064 wlc->stf->txstreams);
4065 if (rs.count != new.count) {
4066 bcmerror = BCME_BADRATESET; /* invalid rateset */
4070 /* apply new rateset to the override */
4071 bcopy((char *)&new, (char *)&wlc->sup_rates_override,
4072 sizeof(wlc_rateset_t));
4074 /* update bcn and probe resp if needed */
4075 if (wlc->pub->up && AP_ENAB(wlc->pub)
4076 && wlc->pub->associated) {
4077 wlc_update_beacon(wlc);
4078 wlc_update_probe_resp(wlc, true);
4083 case WLC_GET_SUP_RATESET_OVERRIDE:
4084 /* this command is only appropriate for gmode operation */
4085 if (!(wlc->band->gmode ||
4087 && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) {
4088 bcmerror = BCME_BADBAND; /* gmode only command when not in gmode */
4091 if (len < (int)sizeof(wlc_rateset_t)) {
4092 bcmerror = BCME_BUFTOOSHORT;
4095 bcopy((char *)&wlc->sup_rates_override, (char *)arg,
4096 sizeof(wlc_rateset_t));
4100 case WLC_GET_PRB_RESP_TIMEOUT:
4101 *pval = wlc->prb_resp_timeout;
4104 case WLC_SET_PRB_RESP_TIMEOUT:
4106 bcmerror = BCME_NOTDOWN;
4109 if (val < 0 || val >= 0xFFFF) {
4110 bcmerror = BCME_RANGE; /* bad value */
4113 wlc->prb_resp_timeout = (u16) val;
4116 case WLC_GET_KEY_PRIMARY:{
4119 /* treat the 'val' parm as the key id */
4120 key = WSEC_BSS_DEFAULT_KEY(bsscfg);
4122 *pval = key->id == val ? true : false;
4124 bcmerror = BCME_BADKEYIDX;
4129 case WLC_SET_KEY_PRIMARY:{
4130 wsec_key_t *key, *old_key;
4132 bcmerror = BCME_BADKEYIDX;
4134 /* treat the 'val' parm as the key id */
4135 for (i = 0; i < WSEC_MAX_DEFAULT_KEYS; i++) {
4136 key = bsscfg->bss_def_keys[i];
4137 if (key != NULL && key->id == val) {
4138 old_key = WSEC_BSS_DEFAULT_KEY(bsscfg);
4139 if (old_key != NULL)
4142 key->flags |= WSEC_PRIMARY_KEY;
4143 bsscfg->wsec_index = i;
4159 /* validate the name value */
4161 for (i = 0; i < (uint) len && *name != '\0';
4165 if (i == (uint) len) {
4166 bcmerror = BCME_BUFTOOSHORT;
4169 i++; /* include the null in the string length */
4171 if (cmd == WLC_GET_VAR) {
4173 wlc_iovar_op(wlc, arg,
4174 (void *)((s8 *) arg + i),
4175 len - i, arg, len, IOV_GET,
4179 wlc_iovar_op(wlc, arg, NULL, 0,
4180 (void *)((s8 *) arg + i),
4181 len - i, IOV_SET, wlcif);
4186 case WLC_SET_WSEC_PMK:
4187 bcmerror = BCME_UNSUPPORTED;
4191 case WLC_CURRENT_PWR:
4193 bcmerror = BCME_NOTUP;
4195 bcmerror = wlc_get_current_txpwr(wlc, arg, len);
4200 WL_ERROR("%s: WLC_LAST\n", __func__);
4205 if (VALID_BCMERROR(bcmerror))
4206 wlc->pub->bcmerror = bcmerror;
4212 /* BMAC_NOTE: for HIGH_ONLY driver, this seems being called after RPC bus failed */
4213 /* In hw_off condition, IOCTLs that reach here are deemed safe but taclear would
4214 * certainly result in getting -1 for register reads. So skip ta_clear altogether
4216 if (!(wlc->pub->hw_off))
4217 ASSERT(wlc_bmac_taclear(wlc->hw, ta_ok) || !ta_ok);
4223 /* consolidated register access ioctl error checking */
4224 int wlc_iocregchk(struct wlc_info *wlc, uint band)
4226 /* if band is specified, it must be the current band */
4227 if ((band != WLC_BAND_AUTO) && (band != (uint) wlc->band->bandtype))
4228 return BCME_BADBAND;
4230 /* if multiband and band is not specified, band must be locked */
4231 if ((band == WLC_BAND_AUTO) && IS_MBAND_UNLOCKED(wlc))
4232 return BCME_NOTBANDLOCKED;
4234 /* must have core clocks */
4240 #endif /* defined(BCMDBG) */
4243 /* For some ioctls, make sure that the pi pointer matches the current phy */
4244 int wlc_iocpichk(struct wlc_info *wlc, uint phytype)
4246 if (wlc->band->phytype != phytype)
4247 return BCME_BADBAND;
4252 /* Look up the given var name in the given table */
4253 static const bcm_iovar_t *wlc_iovar_lookup(const bcm_iovar_t *table,
4256 const bcm_iovar_t *vi;
4257 const char *lookup_name;
4259 /* skip any ':' delimited option prefixes */
4260 lookup_name = strrchr(name, ':');
4261 if (lookup_name != NULL)
4266 ASSERT(table != NULL);
4268 for (vi = table; vi->name; vi++) {
4269 if (!strcmp(vi->name, lookup_name))
4272 /* ran to end of table */
4274 return NULL; /* var name not found */
4277 /* simplified integer get interface for common WLC_GET_VAR ioctl handler */
4278 int wlc_iovar_getint(struct wlc_info *wlc, const char *name, int *arg)
4280 return wlc_iovar_op(wlc, name, NULL, 0, arg, sizeof(s32), IOV_GET,
4284 /* simplified integer set interface for common WLC_SET_VAR ioctl handler */
4285 int wlc_iovar_setint(struct wlc_info *wlc, const char *name, int arg)
4287 return wlc_iovar_op(wlc, name, NULL, 0, (void *)&arg, sizeof(arg),
4291 /* simplified s8 get interface for common WLC_GET_VAR ioctl handler */
4292 int wlc_iovar_gets8(struct wlc_info *wlc, const char *name, s8 *arg)
4298 wlc_iovar_op(wlc, name, NULL, 0, &iovar_int, sizeof(iovar_int),
4301 *arg = (s8) iovar_int;
4307 * register iovar table, watchdog and down handlers.
4308 * calling function must keep 'iovars' until wlc_module_unregister is called.
4309 * 'iovar' must have the last entry's name field being NULL as terminator.
4311 int wlc_module_register(struct wlc_pub *pub, const bcm_iovar_t *iovars,
4312 const char *name, void *hdl, iovar_fn_t i_fn,
4313 watchdog_fn_t w_fn, down_fn_t d_fn)
4315 struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
4318 ASSERT(name != NULL);
4319 ASSERT(i_fn != NULL || w_fn != NULL || d_fn != NULL);
4321 /* find an empty entry and just add, no duplication check! */
4322 for (i = 0; i < WLC_MAXMODULES; i++) {
4323 if (wlc->modulecb[i].name[0] == '\0') {
4324 strncpy(wlc->modulecb[i].name, name,
4325 sizeof(wlc->modulecb[i].name) - 1);
4326 wlc->modulecb[i].iovars = iovars;
4327 wlc->modulecb[i].hdl = hdl;
4328 wlc->modulecb[i].iovar_fn = i_fn;
4329 wlc->modulecb[i].watchdog_fn = w_fn;
4330 wlc->modulecb[i].down_fn = d_fn;
4335 /* it is time to increase the capacity */
4336 ASSERT(i < WLC_MAXMODULES);
4337 return BCME_NORESOURCE;
4340 /* unregister module callbacks */
4341 int wlc_module_unregister(struct wlc_pub *pub, const char *name, void *hdl)
4343 struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
4347 return BCME_NOTFOUND;
4349 ASSERT(name != NULL);
4351 for (i = 0; i < WLC_MAXMODULES; i++) {
4352 if (!strcmp(wlc->modulecb[i].name, name) &&
4353 (wlc->modulecb[i].hdl == hdl)) {
4354 memset(&wlc->modulecb[i], 0, sizeof(modulecb_t));
4359 /* table not found! */
4360 return BCME_NOTFOUND;
4363 /* Write WME tunable parameters for retransmit/max rate from wlc struct to ucode */
4364 static void wlc_wme_retries_write(struct wlc_info *wlc)
4368 /* Need clock to do this */
4372 for (ac = 0; ac < AC_COUNT; ac++) {
4373 wlc_write_shm(wlc, M_AC_TXLMT_ADDR(ac), wlc->wme_retries[ac]);
4377 /* Get or set an iovar. The params/p_len pair specifies any additional
4378 * qualifying parameters (e.g. an "element index") for a get, while the
4379 * arg/len pair is the buffer for the value to be set or retrieved.
4380 * Operation (get/set) is specified by the last argument.
4381 * interface context provided by wlcif
4383 * All pointers may point into the same buffer.
4386 wlc_iovar_op(struct wlc_info *wlc, const char *name,
4387 void *params, int p_len, void *arg, int len,
4388 bool set, struct wlc_if *wlcif)
4392 const bcm_iovar_t *vi = NULL;
4396 ASSERT(name != NULL);
4400 /* Get MUST have return space */
4401 ASSERT(set || (arg && len));
4403 ASSERT(!(wlc->pub->hw_off && wlc->pub->up));
4405 /* Set does NOT take qualifiers */
4406 ASSERT(!set || (!params && !p_len));
4408 if (!set && (len == sizeof(int)) &&
4409 !(IS_ALIGNED((unsigned long)(arg), (uint) sizeof(int)))) {
4410 WL_ERROR("wl%d: %s unaligned get ptr for %s\n",
4411 wlc->pub->unit, __func__, name);
4415 /* find the given iovar name */
4416 for (i = 0; i < WLC_MAXMODULES; i++) {
4417 if (!wlc->modulecb[i].iovars)
4419 vi = wlc_iovar_lookup(wlc->modulecb[i].iovars, name);
4423 /* iovar name not found */
4424 if (i >= WLC_MAXMODULES) {
4425 err = BCME_UNSUPPORTED;
4429 /* set up 'params' pointer in case this is a set command so that
4430 * the convenience int and bool code can be common to set and get
4432 if (params == NULL) {
4437 if (vi->type == IOVT_VOID)
4439 else if (vi->type == IOVT_BUFFER)
4442 /* all other types are integer sized */
4443 val_size = sizeof(int);
4445 actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
4447 /* Do the actual parameter implementation */
4448 err = wlc->modulecb[i].iovar_fn(wlc->modulecb[i].hdl, vi, actionid,
4449 name, params, p_len, arg, len, val_size,
4457 wlc_iovar_check(struct wlc_pub *pub, const bcm_iovar_t *vi, void *arg, int len,
4460 struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
4464 /* check generic condition flags */
4466 if (((vi->flags & IOVF_SET_DOWN) && wlc->pub->up) ||
4467 ((vi->flags & IOVF_SET_UP) && !wlc->pub->up)) {
4468 err = (wlc->pub->up ? BCME_NOTDOWN : BCME_NOTUP);
4469 } else if ((vi->flags & IOVF_SET_BAND)
4470 && IS_MBAND_UNLOCKED(wlc)) {
4471 err = BCME_NOTBANDLOCKED;
4472 } else if ((vi->flags & IOVF_SET_CLK) && !wlc->clk) {
4476 if (((vi->flags & IOVF_GET_DOWN) && wlc->pub->up) ||
4477 ((vi->flags & IOVF_GET_UP) && !wlc->pub->up)) {
4478 err = (wlc->pub->up ? BCME_NOTDOWN : BCME_NOTUP);
4479 } else if ((vi->flags & IOVF_GET_BAND)
4480 && IS_MBAND_UNLOCKED(wlc)) {
4481 err = BCME_NOTBANDLOCKED;
4482 } else if ((vi->flags & IOVF_GET_CLK) && !wlc->clk) {
4490 /* length check on io buf */
4491 err = bcm_iovar_lencheck(vi, arg, len, set);
4495 /* On set, check value ranges for integer types */
4505 bcopy(arg, &int_val, sizeof(int));
4506 err = wlc_iovar_rangecheck(wlc, int_val, vi);
4514 /* handler for iovar table wlc_iovars */
4516 * IMPLEMENTATION NOTE: In order to avoid checking for get/set in each
4517 * iovar case, the switch statement maps the iovar id into separate get
4518 * and set values. If you add a new iovar to the switch you MUST use
4519 * IOV_GVAL and/or IOV_SVAL in the case labels to avoid conflict with
4521 * Please use params for additional qualifying parameters.
4524 wlc_doiovar(void *hdl, const bcm_iovar_t *vi, u32 actionid,
4525 const char *name, void *params, uint p_len, void *arg, int len,
4526 int val_size, struct wlc_if *wlcif)
4528 struct wlc_info *wlc = hdl;
4529 wlc_bsscfg_t *bsscfg;
4536 wlc_bss_info_t *current_bss;
4538 WL_TRACE("wl%d: %s\n", wlc->pub->unit, __func__);
4543 err = wlc_iovar_check(wlc->pub, vi, arg, len, IOV_ISSET(actionid));
4547 /* convenience int and bool vals for first 8 bytes of buffer */
4548 if (p_len >= (int)sizeof(int_val))
4549 bcopy(params, &int_val, sizeof(int_val));
4551 if (p_len >= (int)sizeof(int_val) * 2)
4552 bcopy((void *)((unsigned long)params + sizeof(int_val)), &int_val2,
4555 /* convenience int ptr for 4-byte gets (requires int aligned arg) */
4556 ret_int_ptr = (s32 *) arg;
4558 bool_val = (int_val != 0) ? true : false;
4559 bool_val2 = (int_val2 != 0) ? true : false;
4561 WL_TRACE("wl%d: %s: id %d\n",
4562 wlc->pub->unit, __func__, IOV_ID(actionid));
4563 /* Do the actual parameter implementation */
4566 case IOV_GVAL(IOV_QTXPOWER):{
4570 err = wlc_phy_txpower_get(wlc->band->pi, &qdbm,
4575 /* Return qdbm units */
4577 qdbm | (override ? WL_TXPWR_OVERRIDE : 0);
4581 /* As long as override is false, this only sets the *user* targets.
4582 User can twiddle this all he wants with no harm.
4583 wlc_phy_txpower_set() explicitly sets override to false if
4584 not internal or test.
4586 case IOV_SVAL(IOV_QTXPOWER):{
4590 /* Remove override bit and clip to max qdbm value */
4591 qdbm = (u8)min_t(u32, (int_val & ~WL_TXPWR_OVERRIDE), 0xff);
4592 /* Extract override setting */
4593 override = (int_val & WL_TXPWR_OVERRIDE) ? true : false;
4595 wlc_phy_txpower_set(wlc->band->pi, qdbm, override);
4599 case IOV_GVAL(IOV_MPC):
4600 *ret_int_ptr = (s32) wlc->mpc;
4603 case IOV_SVAL(IOV_MPC):
4604 wlc->mpc = bool_val;
4605 wlc_radio_mpc_upd(wlc);
4609 case IOV_GVAL(IOV_BCN_LI_BCN):
4610 *ret_int_ptr = wlc->bcn_li_bcn;
4613 case IOV_SVAL(IOV_BCN_LI_BCN):
4614 wlc->bcn_li_bcn = (u8) int_val;
4616 wlc_bcn_li_upd(wlc);
4620 WL_ERROR("wl%d: %s: unsupported\n", wlc->pub->unit, __func__);
4621 err = BCME_UNSUPPORTED;
4625 goto exit; /* avoid unused label warning */
4632 wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val, const bcm_iovar_t *vi)
4638 /* Only ranged integers are checked */
4641 max_val |= 0x7fffffff;
4644 max_val |= 0x00007fff;
4647 max_val |= 0x0000007f;
4649 if (vi->flags & IOVF_NTRL)
4651 else if (vi->flags & IOVF_WHL)
4653 /* Signed values are checked against max_val and min_val */
4654 if ((s32) val < (s32) min_val
4655 || (s32) val > (s32) max_val)
4660 max_val |= 0xffffffff;
4663 max_val |= 0x0000ffff;
4666 max_val |= 0x000000ff;
4667 if (vi->flags & IOVF_NTRL)
4669 if ((val < min_val) || (val > max_val))
4678 static const char *supr_reason[] = {
4679 "None", "PMQ Entry", "Flush request",
4680 "Previous frag failure", "Channel mismatch",
4681 "Lifetime Expiry", "Underflow"
4684 static void wlc_print_txs_status(u16 s)
4686 printf("[15:12] %d frame attempts\n", (s & TX_STATUS_FRM_RTX_MASK) >>
4687 TX_STATUS_FRM_RTX_SHIFT);
4688 printf(" [11:8] %d rts attempts\n", (s & TX_STATUS_RTS_RTX_MASK) >>
4689 TX_STATUS_RTS_RTX_SHIFT);
4690 printf(" [7] %d PM mode indicated\n",
4691 ((s & TX_STATUS_PMINDCTD) ? 1 : 0));
4692 printf(" [6] %d intermediate status\n",
4693 ((s & TX_STATUS_INTERMEDIATE) ? 1 : 0));
4694 printf(" [5] %d AMPDU\n", (s & TX_STATUS_AMPDU) ? 1 : 0);
4695 printf(" [4:2] %d Frame Suppressed Reason (%s)\n",
4696 ((s & TX_STATUS_SUPR_MASK) >> TX_STATUS_SUPR_SHIFT),
4697 supr_reason[(s & TX_STATUS_SUPR_MASK) >> TX_STATUS_SUPR_SHIFT]);
4698 printf(" [1] %d acked\n", ((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 printf("\ntxpkt (MPDU) Complete\n");
4710 printf("FrameID: %04x ", txs->frameid);
4711 printf("TxStatus: %04x", s);
4714 wlc_print_txs_status(s);
4716 printf("LastTxTime: %04x ", txs->lasttxtime);
4717 printf("Seq: %04x ", txs->sequence);
4718 printf("PHYTxStatus: %04x ", txs->phyerr);
4719 printf("RxAckRSSI: %04x ",
4720 (ackphyrxsh & PRXS1_JSSI_MASK) >> PRXS1_JSSI_SHIFT);
4721 printf("RxAckSQ: %04x", (ackphyrxsh & PRXS1_SQ_MASK) >> PRXS1_SQ_SHIFT);
4723 #endif /* defined(BCMDBG) */
4726 #define MACSTATUPD(name) \
4727 wlc_ctrupd_cache(macstats.name, &wlc->core->macstat_snapshot->name, &wlc->pub->_cnt->name)
4729 void wlc_statsupd(struct wlc_info *wlc)
4738 /* if driver down, make no sense to update stats */
4743 /* save last rx fifo 0 overflow count */
4744 rxf0ovfl = wlc->core->macstat_snapshot->rxf0ovfl;
4746 /* save last tx fifo underflow count */
4747 for (i = 0; i < NFIFO; i++)
4748 txfunfl[i] = wlc->core->macstat_snapshot->txfunfl[i];
4752 /* check for rx fifo 0 overflow */
4753 delta = (u16) (wlc->core->macstat_snapshot->rxf0ovfl - rxf0ovfl);
4755 WL_ERROR("wl%d: %u rx fifo 0 overflows!\n",
4756 wlc->pub->unit, delta);
4758 /* check for tx fifo underflows */
4759 for (i = 0; i < NFIFO; i++) {
4761 (u16) (wlc->core->macstat_snapshot->txfunfl[i] -
4764 WL_ERROR("wl%d: %u tx fifo %d underflows!\n",
4765 wlc->pub->unit, delta, i);
4769 /* dot11 counter update */
4771 WLCNTSET(wlc->pub->_cnt->txrts,
4772 (wlc->pub->_cnt->rxctsucast -
4773 wlc->pub->_cnt->d11cnt_txrts_off));
4774 WLCNTSET(wlc->pub->_cnt->rxcrc,
4775 (wlc->pub->_cnt->rxbadfcs - wlc->pub->_cnt->d11cnt_rxcrc_off));
4776 WLCNTSET(wlc->pub->_cnt->txnocts,
4777 ((wlc->pub->_cnt->txrtsfrm - wlc->pub->_cnt->rxctsucast) -
4778 wlc->pub->_cnt->d11cnt_txnocts_off));
4780 /* merge counters from dma module */
4781 for (i = 0; i < NFIFO; i++) {
4782 if (wlc->hw->di[i]) {
4783 WLCNTADD(wlc->pub->_cnt->txnobuf,
4784 (wlc->hw->di[i])->txnobuf);
4785 WLCNTADD(wlc->pub->_cnt->rxnobuf,
4786 (wlc->hw->di[i])->rxnobuf);
4787 WLCNTADD(wlc->pub->_cnt->rxgiant,
4788 (wlc->hw->di[i])->rxgiants);
4789 dma_counterreset(wlc->hw->di[i]);
4794 * Aggregate transmit and receive errors that probably resulted
4795 * in the loss of a frame are computed on the fly.
4797 WLCNTSET(wlc->pub->_cnt->txerror,
4798 wlc->pub->_cnt->txnobuf + wlc->pub->_cnt->txnoassoc +
4799 wlc->pub->_cnt->txuflo + wlc->pub->_cnt->txrunt +
4800 wlc->pub->_cnt->dmade + wlc->pub->_cnt->dmada +
4801 wlc->pub->_cnt->dmape);
4802 WLCNTSET(wlc->pub->_cnt->rxerror,
4803 wlc->pub->_cnt->rxoflo + wlc->pub->_cnt->rxnobuf +
4804 wlc->pub->_cnt->rxfragerr + wlc->pub->_cnt->rxrunt +
4805 wlc->pub->_cnt->rxgiant + wlc->pub->_cnt->rxnoscb +
4806 wlc->pub->_cnt->rxbadsrcmac);
4807 for (i = 0; i < NFIFO; i++)
4808 WLCNTADD(wlc->pub->_cnt->rxerror, wlc->pub->_cnt->rxuflo[i]);
4811 bool wlc_chipmatch(u16 vendor, u16 device)
4813 if (vendor != VENDOR_BROADCOM) {
4814 WL_ERROR("wlc_chipmatch: unknown vendor id %04x\n", vendor);
4818 if ((device == BCM43224_D11N_ID) || (device == BCM43225_D11N2G_ID))
4821 if (device == BCM4313_D11N2G_ID)
4823 if ((device == BCM43236_D11N_ID) || (device == BCM43236_D11N2G_ID))
4826 WL_ERROR("wlc_chipmatch: unknown device id %04x\n", device);
4831 void wlc_print_txdesc(d11txh_t *txh)
4833 u16 mtcl = ltoh16(txh->MacTxControlLow);
4834 u16 mtch = ltoh16(txh->MacTxControlHigh);
4835 u16 mfc = ltoh16(txh->MacFrameControl);
4836 u16 tfest = ltoh16(txh->TxFesTimeNormal);
4837 u16 ptcw = ltoh16(txh->PhyTxControlWord);
4838 u16 ptcw_1 = ltoh16(txh->PhyTxControlWord_1);
4839 u16 ptcw_1_Fbr = ltoh16(txh->PhyTxControlWord_1_Fbr);
4840 u16 ptcw_1_Rts = ltoh16(txh->PhyTxControlWord_1_Rts);
4841 u16 ptcw_1_FbrRts = ltoh16(txh->PhyTxControlWord_1_FbrRts);
4842 u16 mainrates = ltoh16(txh->MainRates);
4843 u16 xtraft = ltoh16(txh->XtraFrameTypes);
4845 u8 *ra = txh->TxFrameRA;
4846 u16 tfestfb = ltoh16(txh->TxFesTimeFallback);
4847 u8 *rtspfb = txh->RTSPLCPFallback;
4848 u16 rtsdfb = ltoh16(txh->RTSDurFallback);
4849 u8 *fragpfb = txh->FragPLCPFallback;
4850 u16 fragdfb = ltoh16(txh->FragDurFallback);
4851 u16 mmodelen = ltoh16(txh->MModeLen);
4852 u16 mmodefbrlen = ltoh16(txh->MModeFbrLen);
4853 u16 tfid = ltoh16(txh->TxFrameID);
4854 u16 txs = ltoh16(txh->TxStatus);
4855 u16 mnmpdu = ltoh16(txh->MaxNMpdus);
4856 u16 mabyte = ltoh16(txh->MaxABytes_MRT);
4857 u16 mabyte_f = ltoh16(txh->MaxABytes_FBR);
4858 u16 mmbyte = ltoh16(txh->MinMBytes);
4860 u8 *rtsph = txh->RTSPhyHeader;
4861 struct dot11_rts_frame rts = txh->rts_frame;
4864 /* add plcp header along with txh descriptor */
4865 prhex("Raw TxDesc + plcp header", (unsigned char *) txh, sizeof(d11txh_t) + 48);
4867 printf("TxCtlLow: %04x ", mtcl);
4868 printf("TxCtlHigh: %04x ", mtch);
4869 printf("FC: %04x ", mfc);
4870 printf("FES Time: %04x\n", tfest);
4871 printf("PhyCtl: %04x%s ", ptcw,
4872 (ptcw & PHY_TXC_SHORT_HDR) ? " short" : "");
4873 printf("PhyCtl_1: %04x ", ptcw_1);
4874 printf("PhyCtl_1_Fbr: %04x\n", ptcw_1_Fbr);
4875 printf("PhyCtl_1_Rts: %04x ", ptcw_1_Rts);
4876 printf("PhyCtl_1_Fbr_Rts: %04x\n", ptcw_1_FbrRts);
4877 printf("MainRates: %04x ", mainrates);
4878 printf("XtraFrameTypes: %04x ", xtraft);
4881 bcm_format_hex(hexbuf, iv, sizeof(txh->IV));
4882 printf("SecIV: %s\n", hexbuf);
4883 bcm_format_hex(hexbuf, ra, sizeof(txh->TxFrameRA));
4884 printf("RA: %s\n", hexbuf);
4886 printf("Fb FES Time: %04x ", tfestfb);
4887 bcm_format_hex(hexbuf, rtspfb, sizeof(txh->RTSPLCPFallback));
4888 printf("RTS PLCP: %s ", hexbuf);
4889 printf("RTS DUR: %04x ", rtsdfb);
4890 bcm_format_hex(hexbuf, fragpfb, sizeof(txh->FragPLCPFallback));
4891 printf("PLCP: %s ", hexbuf);
4892 printf("DUR: %04x", fragdfb);
4895 printf("MModeLen: %04x ", mmodelen);
4896 printf("MModeFbrLen: %04x\n", mmodefbrlen);
4898 printf("FrameID: %04x\n", tfid);
4899 printf("TxStatus: %04x\n", txs);
4901 printf("MaxNumMpdu: %04x\n", mnmpdu);
4902 printf("MaxAggbyte: %04x\n", mabyte);
4903 printf("MaxAggbyte_fb: %04x\n", mabyte_f);
4904 printf("MinByte: %04x\n", mmbyte);
4906 bcm_format_hex(hexbuf, rtsph, sizeof(txh->RTSPhyHeader));
4907 printf("RTS PLCP: %s ", hexbuf);
4908 bcm_format_hex(hexbuf, (u8 *) &rts, sizeof(txh->rts_frame));
4909 printf("RTS Frame: %s", hexbuf);
4913 #endif /* defined(BCMDBG) */
4916 void wlc_print_rxh(d11rxhdr_t *rxh)
4918 u16 len = rxh->RxFrameSize;
4919 u16 phystatus_0 = rxh->PhyRxStatus_0;
4920 u16 phystatus_1 = rxh->PhyRxStatus_1;
4921 u16 phystatus_2 = rxh->PhyRxStatus_2;
4922 u16 phystatus_3 = rxh->PhyRxStatus_3;
4923 u16 macstatus1 = rxh->RxStatus1;
4924 u16 macstatus2 = rxh->RxStatus2;
4927 static const bcm_bit_desc_t macstat_flags[] = {
4928 {RXS_FCSERR, "FCSErr"},
4929 {RXS_RESPFRAMETX, "Reply"},
4930 {RXS_PBPRES, "PADDING"},
4931 {RXS_DECATMPT, "DeCr"},
4932 {RXS_DECERR, "DeCrErr"},
4933 {RXS_BCNSENT, "Bcn"},
4937 prhex("Raw RxDesc", (unsigned char *) rxh, sizeof(d11rxhdr_t));
4939 bcm_format_flags(macstat_flags, macstatus1, flagstr, 64);
4941 snprintf(lenbuf, sizeof(lenbuf), "0x%x", len);
4943 printf("RxFrameSize: %6s (%d)%s\n", lenbuf, len,
4944 (rxh->PhyRxStatus_0 & PRXS0_SHORTH) ? " short preamble" : "");
4945 printf("RxPHYStatus: %04x %04x %04x %04x\n",
4946 phystatus_0, phystatus_1, phystatus_2, phystatus_3);
4947 printf("RxMACStatus: %x %s\n", macstatus1, flagstr);
4948 printf("RXMACaggtype: %x\n", (macstatus2 & RXS_AGGTYPE_MASK));
4949 printf("RxTSFTime: %04x\n", rxh->RxTSFTime);
4951 #endif /* defined(BCMDBG) */
4954 int wlc_format_ssid(char *buf, const unsigned char ssid[], uint ssid_len)
4958 char *endp = buf + SSID_FMT_BUF_LEN;
4960 if (ssid_len > DOT11_MAX_SSID_LEN)
4961 ssid_len = DOT11_MAX_SSID_LEN;
4963 for (i = 0; i < ssid_len; i++) {
4968 } else if (isprint((unsigned char) c)) {
4971 p += snprintf(p, (endp - p), "\\x%02X", c);
4977 return (int)(p - buf);
4979 #endif /* defined(BCMDBG) */
4981 u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate)
4983 return wlc_bmac_rate_shm_offset(wlc->hw, rate);
4986 /* Callback for device removed */
4989 * Attempts to queue a packet onto a multiple-precedence queue,
4990 * if necessary evicting a lower precedence packet from the queue.
4992 * 'prec' is the precedence number that has already been mapped
4993 * from the packet priority.
4995 * Returns true if packet consumed (queued), false if not.
4998 wlc_prec_enq(struct wlc_info *wlc, struct pktq *q, void *pkt, int prec)
5000 return wlc_prec_enq_head(wlc, q, pkt, prec, false);
5004 wlc_prec_enq_head(struct wlc_info *wlc, struct pktq *q, struct sk_buff *pkt,
5005 int prec, bool head)
5008 int eprec = -1; /* precedence to evict from */
5010 /* Determine precedence from which to evict packet, if any */
5011 if (pktq_pfull(q, prec))
5013 else if (pktq_full(q)) {
5014 p = pktq_peek_tail(q, &eprec);
5017 WL_ERROR("%s: Failing: eprec %d > prec %d\n",
5018 __func__, eprec, prec);
5023 /* Evict if needed */
5025 bool discard_oldest;
5027 /* Detect queueing to unconfigured precedence */
5028 ASSERT(!pktq_pempty(q, eprec));
5030 discard_oldest = AC_BITMAP_TST(wlc->wme_dp, eprec);
5032 /* Refuse newer packet unless configured to discard oldest */
5033 if (eprec == prec && !discard_oldest) {
5034 WL_ERROR("%s: No where to go, prec == %d\n",
5039 /* Evict packet according to discard policy */
5040 p = discard_oldest ? pktq_pdeq(q, eprec) : pktq_pdeq_tail(q,
5044 /* Increment wme stats */
5045 if (WME_ENAB(wlc->pub)) {
5046 WLCNTINCR(wlc->pub->_wme_cnt->
5047 tx_failed[WME_PRIO2AC(p->priority)].packets);
5048 WLCNTADD(wlc->pub->_wme_cnt->
5049 tx_failed[WME_PRIO2AC(p->priority)].bytes,
5050 pkttotlen(wlc->osh, p));
5054 pkt_buf_free_skb(wlc->osh, p, true);
5055 WLCNTINCR(wlc->pub->_cnt->txnobuf);
5060 p = pktq_penq_head(q, prec, pkt);
5062 p = pktq_penq(q, prec, pkt);
5068 void BCMFASTPATH wlc_txq_enq(void *ctx, struct scb *scb, struct sk_buff *sdu,
5071 struct wlc_info *wlc = (struct wlc_info *) ctx;
5072 wlc_txq_info_t *qi = wlc->active_queue; /* Check me */
5073 struct pktq *q = &qi->q;
5076 prio = sdu->priority;
5078 ASSERT(pktq_max(q) >= wlc->pub->tunables->datahiwat);
5080 if (!wlc_prec_enq(wlc, q, sdu, prec)) {
5081 if (!EDCF_ENAB(wlc->pub)
5082 || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL))
5083 WL_ERROR("wl%d: wlc_txq_enq: txq overflow\n",
5086 /* ASSERT(9 == 8); *//* XXX we might hit this condtion in case packet flooding from mac80211 stack */
5087 pkt_buf_free_skb(wlc->osh, sdu, true);
5088 WLCNTINCR(wlc->pub->_cnt->txnobuf);
5091 /* Check if flow control needs to be turned on after enqueuing the packet
5092 * Don't turn on flow control if EDCF is enabled. Driver would make the decision on what
5093 * to drop instead of relying on stack to make the right decision
5095 if (!EDCF_ENAB(wlc->pub)
5096 || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) {
5097 if (pktq_len(q) >= wlc->pub->tunables->datahiwat) {
5098 wlc_txflowcontrol(wlc, qi, ON, ALLPRIO);
5100 } else if (wlc->pub->_priofc) {
5101 if (pktq_plen(q, wlc_prio2prec_map[prio]) >=
5102 wlc->pub->tunables->datahiwat) {
5103 wlc_txflowcontrol(wlc, qi, ON, prio);
5109 wlc_sendpkt_mac80211(struct wlc_info *wlc, struct sk_buff *sdu,
5110 struct ieee80211_hw *hw)
5115 struct scb *scb = &global_scb;
5116 struct dot11_header *d11_header = (struct dot11_header *)(sdu->data);
5121 fc = ltoh16(d11_header->fc);
5124 /* 802.11 standard requires management traffic to go at highest priority */
5125 prio = (type == FC_TYPE_DATA ? sdu->priority : MAXPRIO);
5126 fifo = prio2fifo[prio];
5128 ASSERT((uint) skb_headroom(sdu) >= TXOFF);
5129 ASSERT(!(sdu->cloned));
5130 ASSERT(!(sdu->next));
5131 ASSERT(!(sdu->prev));
5132 ASSERT(fifo < NFIFO);
5136 (wlc_d11hdrs_mac80211(wlc, hw, pkt, scb, 0, 1, fifo, 0, NULL, 0)))
5138 wlc_txq_enq(wlc, scb, pkt, WLC_PRIO_TO_PREC(prio));
5139 wlc_send_q(wlc, wlc->active_queue);
5141 WLCNTINCR(wlc->pub->_cnt->ieee_tx);
5145 void BCMFASTPATH wlc_send_q(struct wlc_info *wlc, wlc_txq_info_t *qi)
5147 struct sk_buff *pkt[DOT11_MAXNUMFRAGS];
5150 int err = 0, i, count;
5152 struct pktq *q = &qi->q;
5153 struct ieee80211_tx_info *tx_info;
5155 /* only do work for the active queue */
5156 if (qi != wlc->active_queue)
5164 prec_map = wlc->tx_prec_map;
5166 /* Send all the enq'd pkts that we can.
5167 * Dequeue packets with precedence with empty HW fifo only
5169 while (prec_map && (pkt[0] = pktq_mdeq(q, prec_map, &prec))) {
5170 tx_info = IEEE80211_SKB_CB(pkt[0]);
5171 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
5172 err = wlc_sendampdu(wlc->ampdu, qi, pkt, prec);
5175 err = wlc_prep_pdu(wlc, pkt[0], &fifo);
5177 for (i = 0; i < count; i++) {
5178 wlc_txfifo(wlc, fifo, pkt[i], true, 1);
5183 if (err == BCME_BUSY) {
5184 pktq_penq_head(q, prec, pkt[0]);
5185 /* If send failed due to any other reason than a change in
5186 * HW FIFO condition, quit. Otherwise, read the new prec_map!
5188 if (prec_map == wlc->tx_prec_map)
5190 prec_map = wlc->tx_prec_map;
5194 /* Check if flow control needs to be turned off after sending the packet */
5195 if (!EDCF_ENAB(wlc->pub)
5196 || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) {
5197 if (wlc_txflowcontrol_prio_isset(wlc, qi, ALLPRIO)
5198 && (pktq_len(q) < wlc->pub->tunables->datahiwat / 2)) {
5199 wlc_txflowcontrol(wlc, qi, OFF, ALLPRIO);
5201 } else if (wlc->pub->_priofc) {
5203 for (prio = MAXPRIO; prio >= 0; prio--) {
5204 if (wlc_txflowcontrol_prio_isset(wlc, qi, prio) &&
5205 (pktq_plen(q, wlc_prio2prec_map[prio]) <
5206 wlc->pub->tunables->datahiwat / 2)) {
5207 wlc_txflowcontrol(wlc, qi, OFF, prio);
5215 * bcmc_fid_generate:
5216 * Generate frame ID for a BCMC packet. The frag field is not used
5217 * for MC frames so is used as part of the sequence number.
5220 bcmc_fid_generate(struct wlc_info *wlc, wlc_bsscfg_t *bsscfg, d11txh_t *txh)
5224 frameid = ltoh16(txh->TxFrameID) & ~(TXFID_SEQ_MASK | TXFID_QUEUE_MASK);
5227 mc_fid_counter++) << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
5234 wlc_txfifo(struct wlc_info *wlc, uint fifo, struct sk_buff *p, bool commit,
5237 u16 frameid = INVALIDFID;
5240 ASSERT(fifo < NFIFO);
5241 txh = (d11txh_t *) (p->data);
5243 /* When a BC/MC frame is being committed to the BCMC fifo via DMA (NOT PIO), update
5244 * ucode or BSS info as appropriate.
5246 if (fifo == TX_BCMC_FIFO) {
5247 frameid = ltoh16(txh->TxFrameID);
5251 if (WLC_WAR16165(wlc))
5252 wlc_war16165(wlc, true);
5255 /* Bump up pending count for if not using rpc. If rpc is used, this will be handled
5256 * in wlc_bmac_txfifo()
5259 TXPKTPENDINC(wlc, fifo, txpktpend);
5260 WL_TRACE("wlc_txfifo, pktpend inc %d to %d\n",
5261 txpktpend, TXPKTPENDGET(wlc, fifo));
5264 /* Commit BCMC sequence number in the SHM frame ID location */
5265 if (frameid != INVALIDFID)
5266 BCMCFID(wlc, frameid);
5268 if (dma_txfast(wlc->hw->di[fifo], p, commit) < 0) {
5269 WL_ERROR("wlc_txfifo: fatal, toss frames !!!\n");
5274 wlc_compute_airtime(struct wlc_info *wlc, ratespec_t rspec, uint length)
5277 uint mac_rate = RSPEC2RATE(rspec);
5280 if (IS_MCS(rspec)) {
5281 /* not supported yet */
5283 } else if (IS_OFDM(rspec)) {
5284 /* nsyms = Ceiling(Nbits / (Nbits/sym))
5286 * Nbits = length * 8
5287 * Nbits/sym = Mbps * 4 = mac_rate * 2
5289 nsyms = CEIL((length * 8), (mac_rate * 2));
5291 /* usec = symbols * usec/symbol */
5292 usec = (u16) (nsyms * APHY_SYMBOL_TIME);
5303 usec = (length << 4) / 11;
5306 usec = (length << 3) / 11;
5309 WL_ERROR("wl%d: wlc_compute_airtime: unsupported rspec 0x%x\n",
5310 wlc->pub->unit, rspec);
5311 ASSERT((const char *)"Bad phy_rate" == NULL);
5320 wlc_compute_plcp(struct wlc_info *wlc, ratespec_t rspec, uint length, u8 *plcp)
5322 if (IS_MCS(rspec)) {
5323 wlc_compute_mimo_plcp(rspec, length, plcp);
5324 } else if (IS_OFDM(rspec)) {
5325 wlc_compute_ofdm_plcp(rspec, length, plcp);
5327 wlc_compute_cck_plcp(rspec, length, plcp);
5332 /* Rate: 802.11 rate code, length: PSDU length in octets */
5333 static void wlc_compute_mimo_plcp(ratespec_t rspec, uint length, u8 *plcp)
5335 u8 mcs = (u8) (rspec & RSPEC_RATE_MASK);
5336 ASSERT(IS_MCS(rspec));
5338 if (RSPEC_IS40MHZ(rspec) || (mcs == 32))
5339 plcp[0] |= MIMO_PLCP_40MHZ;
5340 WLC_SET_MIMO_PLCP_LEN(plcp, length);
5341 plcp[3] = RSPEC_MIMOPLCP3(rspec); /* rspec already holds this byte */
5342 plcp[3] |= 0x7; /* set smoothing, not sounding ppdu & reserved */
5343 plcp[4] = 0; /* number of extension spatial streams bit 0 & 1 */
5347 /* Rate: 802.11 rate code, length: PSDU length in octets */
5348 static void BCMFASTPATH
5349 wlc_compute_ofdm_plcp(ratespec_t rspec, u32 length, u8 *plcp)
5353 int rate = RSPEC2RATE(rspec);
5355 ASSERT(IS_OFDM(rspec));
5357 /* encode rate per 802.11a-1999 sec 17.3.4.1, with lsb transmitted first */
5358 rate_signal = rate_info[rate] & RATE_MASK;
5359 ASSERT(rate_signal != 0);
5361 memset(plcp, 0, D11_PHY_HDR_LEN);
5362 D11A_PHY_HDR_SRATE((ofdm_phy_hdr_t *) plcp, rate_signal);
5364 tmp = (length & 0xfff) << 5;
5365 plcp[2] |= (tmp >> 16) & 0xff;
5366 plcp[1] |= (tmp >> 8) & 0xff;
5367 plcp[0] |= tmp & 0xff;
5373 * Compute PLCP, but only requires actual rate and length of pkt.
5374 * Rate is given in the driver standard multiple of 500 kbps.
5375 * le is set for 11 Mbps rate if necessary.
5376 * Broken out for PRQ.
5379 static void wlc_cck_plcp_set(int rate_500, uint length, u8 *plcp)
5392 usec = (length << 4) / 11;
5393 if ((length << 4) - (usec * 11) > 0)
5397 usec = (length << 3) / 11;
5398 if ((length << 3) - (usec * 11) > 0) {
5400 if ((usec * 11) - (length << 3) >= 8)
5401 le = D11B_PLCP_SIGNAL_LE;
5406 WL_ERROR("wlc_cck_plcp_set: unsupported rate %d\n", rate_500);
5407 rate_500 = WLC_RATE_1M;
5411 /* PLCP signal byte */
5412 plcp[0] = rate_500 * 5; /* r (500kbps) * 5 == r (100kbps) */
5413 /* PLCP service byte */
5414 plcp[1] = (u8) (le | D11B_PLCP_SIGNAL_LOCKED);
5415 /* PLCP length u16, little endian */
5416 plcp[2] = usec & 0xff;
5417 plcp[3] = (usec >> 8) & 0xff;
5423 /* Rate: 802.11 rate code, length: PSDU length in octets */
5424 static void wlc_compute_cck_plcp(ratespec_t rspec, uint length, u8 *plcp)
5426 int rate = RSPEC2RATE(rspec);
5428 ASSERT(IS_CCK(rspec));
5430 wlc_cck_plcp_set(rate, length, plcp);
5433 /* wlc_compute_frame_dur()
5435 * Calculate the 802.11 MAC header DUR field for MPDU
5436 * DUR for a single frame = 1 SIFS + 1 ACK
5437 * DUR for a frame with following frags = 3 SIFS + 2 ACK + next frag time
5439 * rate MPDU rate in unit of 500kbps
5440 * next_frag_len next MPDU length in bytes
5441 * preamble_type use short/GF or long/MM PLCP header
5443 static u16 BCMFASTPATH
5444 wlc_compute_frame_dur(struct wlc_info *wlc, ratespec_t rate, u8 preamble_type,
5449 sifs = SIFS(wlc->band);
5452 dur += (u16) wlc_calc_ack_time(wlc, rate, preamble_type);
5454 if (next_frag_len) {
5455 /* Double the current DUR to get 2 SIFS + 2 ACKs */
5457 /* add another SIFS and the frag time */
5460 (u16) wlc_calc_frame_time(wlc, rate, preamble_type,
5466 /* wlc_compute_rtscts_dur()
5468 * Calculate the 802.11 MAC header DUR field for an RTS or CTS frame
5469 * DUR for normal RTS/CTS w/ frame = 3 SIFS + 1 CTS + next frame time + 1 ACK
5470 * DUR for CTS-TO-SELF w/ frame = 2 SIFS + next frame time + 1 ACK
5472 * cts cts-to-self or rts/cts
5473 * rts_rate rts or cts rate in unit of 500kbps
5474 * rate next MPDU rate in unit of 500kbps
5475 * frame_len next MPDU frame length in bytes
5478 wlc_compute_rtscts_dur(struct wlc_info *wlc, bool cts_only, ratespec_t rts_rate,
5479 ratespec_t frame_rate, u8 rts_preamble_type,
5480 u8 frame_preamble_type, uint frame_len, bool ba)
5484 sifs = SIFS(wlc->band);
5486 if (!cts_only) { /* RTS/CTS */
5489 (u16) wlc_calc_cts_time(wlc, rts_rate,
5491 } else { /* CTS-TO-SELF */
5496 (u16) wlc_calc_frame_time(wlc, frame_rate, frame_preamble_type,
5500 (u16) wlc_calc_ba_time(wlc, frame_rate,
5501 WLC_SHORT_PREAMBLE);
5504 (u16) wlc_calc_ack_time(wlc, frame_rate,
5505 frame_preamble_type);
5509 static bool wlc_phy_rspec_check(struct wlc_info *wlc, u16 bw, ratespec_t rspec)
5511 if (IS_MCS(rspec)) {
5512 uint mcs = rspec & RSPEC_RATE_MASK;
5515 ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_SDM);
5516 } else if ((mcs >= 8) && (mcs <= 23)) {
5517 ASSERT(RSPEC_STF(rspec) == PHY_TXC1_MODE_SDM);
5518 } else if (mcs == 32) {
5519 ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_SDM);
5520 ASSERT(bw == PHY_TXC1_BW_40MHZ_DUP);
5522 } else if (IS_OFDM(rspec)) {
5523 ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_STBC);
5525 ASSERT(IS_CCK(rspec));
5527 ASSERT((bw == PHY_TXC1_BW_20MHZ)
5528 || (bw == PHY_TXC1_BW_20MHZ_UP));
5529 ASSERT(RSPEC_STF(rspec) == PHY_TXC1_MODE_SISO);
5535 u16 BCMFASTPATH wlc_phytxctl1_calc(struct wlc_info *wlc, ratespec_t rspec)
5540 if (WLCISLCNPHY(wlc->band)) {
5541 bw = PHY_TXC1_BW_20MHZ;
5543 bw = RSPEC_GET_BW(rspec);
5544 /* 10Mhz is not supported yet */
5545 if (bw < PHY_TXC1_BW_20MHZ) {
5546 WL_ERROR("wlc_phytxctl1_calc: bw %d is not supported yet, set to 20L\n",
5548 bw = PHY_TXC1_BW_20MHZ;
5551 wlc_phy_rspec_check(wlc, bw, rspec);
5554 if (IS_MCS(rspec)) {
5555 uint mcs = rspec & RSPEC_RATE_MASK;
5557 /* bw, stf, coding-type is part of RSPEC_PHYTXBYTE2 returns */
5558 phyctl1 = RSPEC_PHYTXBYTE2(rspec);
5559 /* set the upper byte of phyctl1 */
5560 phyctl1 |= (mcs_table[mcs].tx_phy_ctl3 << 8);
5561 } else if (IS_CCK(rspec) && !WLCISLCNPHY(wlc->band)
5562 && !WLCISSSLPNPHY(wlc->band)) {
5563 /* In CCK mode LPPHY overloads OFDM Modulation bits with CCK Data Rate */
5564 /* Eventually MIMOPHY would also be converted to this format */
5565 /* 0 = 1Mbps; 1 = 2Mbps; 2 = 5.5Mbps; 3 = 11Mbps */
5566 phyctl1 = (bw | (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT));
5567 } else { /* legacy OFDM/CCK */
5569 /* get the phyctl byte from rate phycfg table */
5570 phycfg = wlc_rate_legacy_phyctl(RSPEC2RATE(rspec));
5572 WL_ERROR("wlc_phytxctl1_calc: wrong legacy OFDM/CCK rate\n");
5576 /* set the upper byte of phyctl1 */
5578 (bw | (phycfg << 8) |
5579 (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT));
5583 /* phy clock must support 40Mhz if tx descriptor uses it */
5584 if ((phyctl1 & PHY_TXC1_BW_MASK) >= PHY_TXC1_BW_40MHZ) {
5585 ASSERT(CHSPEC_WLC_BW(wlc->chanspec) == WLC_40_MHZ);
5586 ASSERT(wlc->chanspec == wlc_phy_chanspec_get(wlc->band->pi));
5592 ratespec_t BCMFASTPATH
5593 wlc_rspec_to_rts_rspec(struct wlc_info *wlc, ratespec_t rspec, bool use_rspec,
5596 ratespec_t rts_rspec = 0;
5599 /* use frame rate as rts rate */
5602 } else if (wlc->band->gmode && wlc->protection->_g && !IS_CCK(rspec)) {
5603 /* Use 11Mbps as the g protection RTS target rate and fallback.
5604 * Use the WLC_BASIC_RATE() lookup to find the best basic rate under the
5605 * target in case 11 Mbps is not Basic.
5606 * 6 and 9 Mbps are not usually selected by rate selection, but even
5607 * if the OFDM rate we are protecting is 6 or 9 Mbps, 11 is more robust.
5609 rts_rspec = WLC_BASIC_RATE(wlc, WLC_RATE_11M);
5611 /* calculate RTS rate and fallback rate based on the frame rate
5612 * RTS must be sent at a basic rate since it is a
5613 * control frame, sec 9.6 of 802.11 spec
5615 rts_rspec = WLC_BASIC_RATE(wlc, rspec);
5618 if (WLC_PHY_11N_CAP(wlc->band)) {
5619 /* set rts txbw to correct side band */
5620 rts_rspec &= ~RSPEC_BW_MASK;
5622 /* if rspec/rspec_fallback is 40MHz, then send RTS on both 20MHz channel
5623 * (DUP), otherwise send RTS on control channel
5625 if (RSPEC_IS40MHZ(rspec) && !IS_CCK(rts_rspec))
5626 rts_rspec |= (PHY_TXC1_BW_40MHZ_DUP << RSPEC_BW_SHIFT);
5628 rts_rspec |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
5630 /* pick siso/cdd as default for ofdm */
5631 if (IS_OFDM(rts_rspec)) {
5632 rts_rspec &= ~RSPEC_STF_MASK;
5633 rts_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
5640 * Add d11txh_t, cck_phy_hdr_t.
5642 * 'p' data must start with 802.11 MAC header
5643 * 'p' must allow enough bytes of local headers to be "pushed" onto the packet
5645 * headroom == D11_PHY_HDR_LEN + D11_TXH_LEN (D11_TXH_LEN is now 104 bytes)
5648 static u16 BCMFASTPATH
5649 wlc_d11hdrs_mac80211(struct wlc_info *wlc, struct ieee80211_hw *hw,
5650 struct sk_buff *p, struct scb *scb, uint frag,
5651 uint nfrags, uint queue, uint next_frag_len,
5652 wsec_key_t *key, ratespec_t rspec_override)
5654 struct dot11_header *h;
5656 u8 *plcp, plcp_fallback[D11_PHY_HDR_LEN];
5657 struct osl_info *osh;
5658 int len, phylen, rts_phylen;
5659 u16 fc, type, frameid, mch, phyctl, xfts, mainrates;
5660 u16 seq = 0, mcl = 0, status = 0;
5661 ratespec_t rspec[2] = { WLC_RATE_1M, WLC_RATE_1M }, rts_rspec[2] = {
5662 WLC_RATE_1M, WLC_RATE_1M};
5663 bool use_rts = false;
5664 bool use_cts = false;
5665 bool use_rifs = false;
5666 bool short_preamble[2] = { false, false };
5667 u8 preamble_type[2] = { WLC_LONG_PREAMBLE, WLC_LONG_PREAMBLE };
5668 u8 rts_preamble_type[2] = { WLC_LONG_PREAMBLE, WLC_LONG_PREAMBLE };
5669 u8 *rts_plcp, rts_plcp_fallback[D11_PHY_HDR_LEN];
5670 struct dot11_rts_frame *rts = NULL;
5674 bool hwtkmic = false;
5675 u16 mimo_ctlchbw = PHY_TXC1_BW_20MHZ;
5677 #define ANTCFG_NONE 0xFF
5678 u8 antcfg = ANTCFG_NONE;
5679 u8 fbantcfg = ANTCFG_NONE;
5681 uint phyctl1_stf = 0;
5683 struct ieee80211_tx_rate *txrate[2];
5685 struct ieee80211_tx_info *tx_info;
5688 u8 mimo_preamble_type;
5692 ASSERT(queue < NFIFO);
5696 /* locate 802.11 MAC header */
5697 h = (struct dot11_header *)(p->data);
5701 qos = (type == FC_TYPE_DATA && FC_SUBTYPE_ANY_QOS(FC_SUBTYPE(fc)));
5703 /* compute length of frame in bytes for use in PLCP computations */
5704 len = pkttotlen(osh, p);
5705 phylen = len + DOT11_FCS_LEN;
5707 /* If WEP enabled, add room in phylen for the additional bytes of
5708 * ICV which MAC generates. We do NOT add the additional bytes to
5709 * the packet itself, thus phylen = packet length + ICV_LEN + FCS_LEN
5713 phylen += key->icv_len;
5717 tx_info = IEEE80211_SKB_CB(p);
5721 plcp = skb_push(p, D11_PHY_HDR_LEN);
5723 /* add Broadcom tx descriptor header */
5724 txh = (d11txh_t *) skb_push(p, D11_TXH_LEN);
5725 memset((char *)txh, 0, D11_TXH_LEN);
5728 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
5729 /* non-AP STA should never use BCMC queue */
5730 ASSERT(queue != TX_BCMC_FIFO);
5731 if (queue == TX_BCMC_FIFO) {
5732 WL_ERROR("wl%d: %s: ASSERT queue == TX_BCMC!\n",
5733 WLCWLUNIT(wlc), __func__);
5734 frameid = bcmc_fid_generate(wlc, NULL, txh);
5736 /* Increment the counter for first fragment */
5737 if (tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) {
5738 SCB_SEQNUM(scb, p->priority)++;
5741 /* extract fragment number from frame first */
5742 seq = ltoh16(seq) & FRAGNUM_MASK;
5743 seq |= (SCB_SEQNUM(scb, p->priority) << SEQNUM_SHIFT);
5744 h->seq = htol16(seq);
5746 frameid = ((seq << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
5747 (queue & TXFID_QUEUE_MASK);
5750 frameid |= queue & TXFID_QUEUE_MASK;
5752 /* set the ignpmq bit for all pkts tx'd in PS mode and for beacons */
5753 if (SCB_PS(scb) || ((fc & FC_KIND_MASK) == FC_BEACON))
5754 mcl |= TXC_IGNOREPMQ;
5756 ASSERT(hw->max_rates <= IEEE80211_TX_MAX_RATES);
5757 ASSERT(hw->max_rates == 2);
5759 txrate[0] = tx_info->control.rates;
5760 txrate[1] = txrate[0] + 1;
5762 ASSERT(txrate[0]->idx >= 0);
5763 /* if rate control algorithm didn't give us a fallback rate, use the primary rate */
5764 if (txrate[1]->idx < 0) {
5765 txrate[1] = txrate[0];
5768 for (k = 0; k < hw->max_rates; k++) {
5770 txrate[k]->flags & IEEE80211_TX_RC_MCS ? true : false;
5772 ASSERT(!(tx_info->flags & IEEE80211_TX_CTL_AMPDU));
5773 if ((txrate[k]->idx >= 0)
5774 && (txrate[k]->idx <
5775 hw->wiphy->bands[tx_info->band]->n_bitrates)) {
5777 hw->wiphy->bands[tx_info->band]->
5778 bitrates[txrate[k]->idx].hw_value;
5781 flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ?
5784 ASSERT((txrate[k]->idx >= 0) &&
5786 hw->wiphy->bands[tx_info->band]->
5788 rate_val[k] = WLC_RATE_1M;
5791 rate_val[k] = txrate[k]->idx;
5793 /* Currently only support same setting for primay and fallback rates.
5794 * Unify flags for each rate into a single value for the frame
5798 flags & IEEE80211_TX_RC_USE_RTS_CTS ? true : false;
5801 flags & IEEE80211_TX_RC_USE_CTS_PROTECT ? true : false;
5804 rate_val[k] |= NRATE_MCS_INUSE;
5806 rspec[k] = mac80211_wlc_set_nrate(wlc, wlc->band, rate_val[k]);
5808 /* (1) RATE: determine and validate primary rate and fallback rates */
5809 if (!RSPEC_ACTIVE(rspec[k])) {
5810 ASSERT(RSPEC_ACTIVE(rspec[k]));
5811 rspec[k] = WLC_RATE_1M;
5813 if (WLANTSEL_ENAB(wlc) &&
5814 !is_multicast_ether_addr(h->a1.octet)) {
5815 /* set tx antenna config */
5816 wlc_antsel_antcfg_get(wlc->asi, false, false, 0,
5817 0, &antcfg, &fbantcfg);
5822 phyctl1_stf = wlc->stf->ss_opmode;
5824 if (N_ENAB(wlc->pub)) {
5825 for (k = 0; k < hw->max_rates; k++) {
5826 /* apply siso/cdd to single stream mcs's or ofdm if rspec is auto selected */
5827 if (((IS_MCS(rspec[k]) &&
5828 IS_SINGLE_STREAM(rspec[k] & RSPEC_RATE_MASK)) ||
5830 && ((rspec[k] & RSPEC_OVERRIDE_MCS_ONLY)
5831 || !(rspec[k] & RSPEC_OVERRIDE))) {
5832 rspec[k] &= ~(RSPEC_STF_MASK | RSPEC_STC_MASK);
5834 /* For SISO MCS use STBC if possible */
5835 if (IS_MCS(rspec[k])
5836 && WLC_STF_SS_STBC_TX(wlc, scb)) {
5839 ASSERT(WLC_STBC_CAP_PHY(wlc));
5840 stc = 1; /* Nss for single stream is always 1 */
5842 (PHY_TXC1_MODE_STBC <<
5843 RSPEC_STF_SHIFT) | (stc <<
5847 (phyctl1_stf << RSPEC_STF_SHIFT);
5850 /* Is the phy configured to use 40MHZ frames? If so then pick the desired txbw */
5851 if (CHSPEC_WLC_BW(wlc->chanspec) == WLC_40_MHZ) {
5852 /* default txbw is 20in40 SB */
5853 mimo_ctlchbw = mimo_txbw =
5854 CHSPEC_SB_UPPER(WLC_BAND_PI_RADIO_CHANSPEC)
5855 ? PHY_TXC1_BW_20MHZ_UP : PHY_TXC1_BW_20MHZ;
5857 if (IS_MCS(rspec[k])) {
5858 /* mcs 32 must be 40b/w DUP */
5859 if ((rspec[k] & RSPEC_RATE_MASK) == 32) {
5861 PHY_TXC1_BW_40MHZ_DUP;
5863 } else if (wlc->mimo_40txbw != AUTO)
5864 mimo_txbw = wlc->mimo_40txbw;
5865 /* else check if dst is using 40 Mhz */
5866 else if (scb->flags & SCB_IS40)
5867 mimo_txbw = PHY_TXC1_BW_40MHZ;
5868 } else if (IS_OFDM(rspec[k])) {
5869 if (wlc->ofdm_40txbw != AUTO)
5870 mimo_txbw = wlc->ofdm_40txbw;
5872 ASSERT(IS_CCK(rspec[k]));
5873 if (wlc->cck_40txbw != AUTO)
5874 mimo_txbw = wlc->cck_40txbw;
5877 /* mcs32 is 40 b/w only.
5878 * This is possible for probe packets on a STA during SCAN
5880 if ((rspec[k] & RSPEC_RATE_MASK) == 32) {
5882 rspec[k] = RSPEC_MIMORATE;
5884 mimo_txbw = PHY_TXC1_BW_20MHZ;
5887 /* Set channel width */
5888 rspec[k] &= ~RSPEC_BW_MASK;
5889 if ((k == 0) || ((k > 0) && IS_MCS(rspec[k])))
5890 rspec[k] |= (mimo_txbw << RSPEC_BW_SHIFT);
5892 rspec[k] |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
5896 if (IS_MCS(rspec[k])
5897 && (txrate[k]->flags & IEEE80211_TX_RC_SHORT_GI))
5898 rspec[k] |= RSPEC_SHORT_GI;
5899 else if (!(txrate[k]->flags & IEEE80211_TX_RC_SHORT_GI))
5900 rspec[k] &= ~RSPEC_SHORT_GI;
5902 rspec[k] &= ~RSPEC_SHORT_GI;
5905 mimo_preamble_type = WLC_MM_PREAMBLE;
5906 if (txrate[k]->flags & IEEE80211_TX_RC_GREEN_FIELD)
5907 mimo_preamble_type = WLC_GF_PREAMBLE;
5909 if ((txrate[k]->flags & IEEE80211_TX_RC_MCS)
5910 && (!IS_MCS(rspec[k]))) {
5911 WL_ERROR("wl%d: %s: IEEE80211_TX_RC_MCS != IS_MCS(rspec)\n",
5912 WLCWLUNIT(wlc), __func__);
5913 ASSERT(0 && "Rate mismatch");
5916 if (IS_MCS(rspec[k])) {
5917 preamble_type[k] = mimo_preamble_type;
5919 /* if SGI is selected, then forced mm for single stream */
5920 if ((rspec[k] & RSPEC_SHORT_GI)
5921 && IS_SINGLE_STREAM(rspec[k] &
5923 preamble_type[k] = WLC_MM_PREAMBLE;
5927 /* mimo bw field MUST now be valid in the rspec (it affects duration calculations) */
5928 ASSERT(VALID_RATE_DBG(wlc, rspec[0]));
5930 /* should be better conditionalized */
5931 if (!IS_MCS(rspec[0])
5932 && (tx_info->control.rates[0].
5933 flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE))
5934 preamble_type[k] = WLC_SHORT_PREAMBLE;
5936 ASSERT(!IS_MCS(rspec[0])
5937 || WLC_IS_MIMO_PREAMBLE(preamble_type[k]));
5940 for (k = 0; k < hw->max_rates; k++) {
5941 /* Set ctrlchbw as 20Mhz */
5942 ASSERT(!IS_MCS(rspec[k]));
5943 rspec[k] &= ~RSPEC_BW_MASK;
5944 rspec[k] |= (PHY_TXC1_BW_20MHZ << RSPEC_BW_SHIFT);
5946 /* for nphy, stf of ofdm frames must follow policies */
5947 if (WLCISNPHY(wlc->band) && IS_OFDM(rspec[k])) {
5948 rspec[k] &= ~RSPEC_STF_MASK;
5949 rspec[k] |= phyctl1_stf << RSPEC_STF_SHIFT;
5954 /* Reset these for use with AMPDU's */
5955 txrate[0]->count = 0;
5956 txrate[1]->count = 0;
5958 /* (3) PLCP: determine PLCP header and MAC duration, fill d11txh_t */
5959 wlc_compute_plcp(wlc, rspec[0], phylen, plcp);
5960 wlc_compute_plcp(wlc, rspec[1], phylen, plcp_fallback);
5961 bcopy(plcp_fallback, (char *)&txh->FragPLCPFallback,
5962 sizeof(txh->FragPLCPFallback));
5964 /* Length field now put in CCK FBR CRC field */
5965 if (IS_CCK(rspec[1])) {
5966 txh->FragPLCPFallback[4] = phylen & 0xff;
5967 txh->FragPLCPFallback[5] = (phylen & 0xff00) >> 8;
5970 /* MIMO-RATE: need validation ?? */
5972 IS_OFDM(rspec[0]) ? D11A_PHY_HDR_GRATE((ofdm_phy_hdr_t *) plcp) :
5975 /* DUR field for main rate */
5976 if ((fc != FC_PS_POLL) &&
5977 !is_multicast_ether_addr(h->a1.octet) && !use_rifs) {
5979 wlc_compute_frame_dur(wlc, rspec[0], preamble_type[0],
5981 h->durid = htol16(durid);
5982 } else if (use_rifs) {
5983 /* NAV protect to end of next max packet size */
5985 (u16) wlc_calc_frame_time(wlc, rspec[0],
5987 DOT11_MAX_FRAG_LEN);
5988 durid += RIFS_11N_TIME;
5989 h->durid = htol16(durid);
5992 /* DUR field for fallback rate */
5993 if (fc == FC_PS_POLL)
5994 txh->FragDurFallback = h->durid;
5995 else if (is_multicast_ether_addr(h->a1.octet) || use_rifs)
5996 txh->FragDurFallback = 0;
5998 durid = wlc_compute_frame_dur(wlc, rspec[1],
5999 preamble_type[1], next_frag_len);
6000 txh->FragDurFallback = htol16(durid);
6003 /* (4) MAC-HDR: MacTxControlLow */
6005 mcl |= TXC_STARTMSDU;
6007 if (!is_multicast_ether_addr(h->a1.octet))
6008 mcl |= TXC_IMMEDACK;
6010 if (BAND_5G(wlc->band->bandtype))
6011 mcl |= TXC_FREQBAND_5G;
6013 if (CHSPEC_IS40(WLC_BAND_PI_RADIO_CHANSPEC))
6016 /* set AMIC bit if using hardware TKIP MIC */
6020 txh->MacTxControlLow = htol16(mcl);
6022 /* MacTxControlHigh */
6025 /* Set fallback rate preamble type */
6026 if ((preamble_type[1] == WLC_SHORT_PREAMBLE) ||
6027 (preamble_type[1] == WLC_GF_PREAMBLE)) {
6028 ASSERT((preamble_type[1] == WLC_GF_PREAMBLE) ||
6029 (!IS_MCS(rspec[1])));
6030 if (RSPEC2RATE(rspec[1]) != WLC_RATE_1M)
6031 mch |= TXC_PREAMBLE_DATA_FB_SHORT;
6034 /* MacFrameControl */
6035 bcopy((char *)&h->fc, (char *)&txh->MacFrameControl, sizeof(u16));
6037 txh->TxFesTimeNormal = htol16(0);
6039 txh->TxFesTimeFallback = htol16(0);
6042 bcopy((char *)&h->a1, (char *)&txh->TxFrameRA, ETH_ALEN);
6045 txh->TxFrameID = htol16(frameid);
6047 /* TxStatus, Note the case of recreating the first frag of a suppressed frame
6048 * then we may need to reset the retry cnt's via the status reg
6050 txh->TxStatus = htol16(status);
6052 if (D11REV_GE(wlc->pub->corerev, 16)) {
6053 /* extra fields for ucode AMPDU aggregation, the new fields are added to
6054 * the END of previous structure so that it's compatible in driver.
6055 * In old rev ucode, these fields should be ignored
6057 txh->MaxNMpdus = htol16(0);
6058 txh->MaxABytes_MRT = htol16(0);
6059 txh->MaxABytes_FBR = htol16(0);
6060 txh->MinMBytes = htol16(0);
6063 /* (5) RTS/CTS: determine RTS/CTS PLCP header and MAC duration, furnish d11txh_t */
6064 /* RTS PLCP header and RTS frame */
6065 if (use_rts || use_cts) {
6066 if (use_rts && use_cts)
6069 for (k = 0; k < 2; k++) {
6070 rts_rspec[k] = wlc_rspec_to_rts_rspec(wlc, rspec[k],
6075 if (!IS_OFDM(rts_rspec[0]) &&
6076 !((RSPEC2RATE(rts_rspec[0]) == WLC_RATE_1M) ||
6077 (wlc->PLCPHdr_override == WLC_PLCP_LONG))) {
6078 rts_preamble_type[0] = WLC_SHORT_PREAMBLE;
6079 mch |= TXC_PREAMBLE_RTS_MAIN_SHORT;
6082 if (!IS_OFDM(rts_rspec[1]) &&
6083 !((RSPEC2RATE(rts_rspec[1]) == WLC_RATE_1M) ||
6084 (wlc->PLCPHdr_override == WLC_PLCP_LONG))) {
6085 rts_preamble_type[1] = WLC_SHORT_PREAMBLE;
6086 mch |= TXC_PREAMBLE_RTS_FB_SHORT;
6089 /* RTS/CTS additions to MacTxControlLow */
6091 txh->MacTxControlLow |= htol16(TXC_SENDCTS);
6093 txh->MacTxControlLow |= htol16(TXC_SENDRTS);
6094 txh->MacTxControlLow |= htol16(TXC_LONGFRAME);
6097 /* RTS PLCP header */
6098 ASSERT(IS_ALIGNED((unsigned long)txh->RTSPhyHeader, sizeof(u16)));
6099 rts_plcp = txh->RTSPhyHeader;
6101 rts_phylen = DOT11_CTS_LEN + DOT11_FCS_LEN;
6103 rts_phylen = DOT11_RTS_LEN + DOT11_FCS_LEN;
6105 wlc_compute_plcp(wlc, rts_rspec[0], rts_phylen, rts_plcp);
6107 /* fallback rate version of RTS PLCP header */
6108 wlc_compute_plcp(wlc, rts_rspec[1], rts_phylen,
6110 bcopy(rts_plcp_fallback, (char *)&txh->RTSPLCPFallback,
6111 sizeof(txh->RTSPLCPFallback));
6113 /* RTS frame fields... */
6114 rts = (struct dot11_rts_frame *)&txh->rts_frame;
6116 durid = wlc_compute_rtscts_dur(wlc, use_cts, rts_rspec[0],
6117 rspec[0], rts_preamble_type[0],
6118 preamble_type[0], phylen, false);
6119 rts->durid = htol16(durid);
6120 /* fallback rate version of RTS DUR field */
6121 durid = wlc_compute_rtscts_dur(wlc, use_cts,
6122 rts_rspec[1], rspec[1],
6123 rts_preamble_type[1],
6124 preamble_type[1], phylen, false);
6125 txh->RTSDurFallback = htol16(durid);
6128 rts->fc = htol16(FC_CTS);
6129 bcopy((char *)&h->a2, (char *)&rts->ra, ETH_ALEN);
6131 rts->fc = htol16((u16) FC_RTS);
6132 bcopy((char *)&h->a1, (char *)&rts->ra,
6137 * low 8 bits: main frag rate/mcs,
6138 * high 8 bits: rts/cts rate/mcs
6140 mainrates |= (IS_OFDM(rts_rspec[0]) ?
6141 D11A_PHY_HDR_GRATE((ofdm_phy_hdr_t *) rts_plcp) :
6144 memset((char *)txh->RTSPhyHeader, 0, D11_PHY_HDR_LEN);
6145 memset((char *)&txh->rts_frame, 0,
6146 sizeof(struct dot11_rts_frame));
6147 memset((char *)txh->RTSPLCPFallback, 0,
6148 sizeof(txh->RTSPLCPFallback));
6149 txh->RTSDurFallback = 0;
6152 #ifdef SUPPORT_40MHZ
6153 /* add null delimiter count */
6154 if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && IS_MCS(rspec)) {
6155 txh->RTSPLCPFallback[AMPDU_FBR_NULL_DELIM] =
6156 wlc_ampdu_null_delim_cnt(wlc->ampdu, scb, rspec, phylen);
6160 /* Now that RTS/RTS FB preamble types are updated, write the final value */
6161 txh->MacTxControlHigh = htol16(mch);
6163 /* MainRates (both the rts and frag plcp rates have been calculated now) */
6164 txh->MainRates = htol16(mainrates);
6166 /* XtraFrameTypes */
6167 xfts = FRAMETYPE(rspec[1], wlc->mimoft);
6168 xfts |= (FRAMETYPE(rts_rspec[0], wlc->mimoft) << XFTS_RTS_FT_SHIFT);
6169 xfts |= (FRAMETYPE(rts_rspec[1], wlc->mimoft) << XFTS_FBRRTS_FT_SHIFT);
6171 CHSPEC_CHANNEL(WLC_BAND_PI_RADIO_CHANSPEC) << XFTS_CHANNEL_SHIFT;
6172 txh->XtraFrameTypes = htol16(xfts);
6174 /* PhyTxControlWord */
6175 phyctl = FRAMETYPE(rspec[0], wlc->mimoft);
6176 if ((preamble_type[0] == WLC_SHORT_PREAMBLE) ||
6177 (preamble_type[0] == WLC_GF_PREAMBLE)) {
6178 ASSERT((preamble_type[0] == WLC_GF_PREAMBLE)
6179 || !IS_MCS(rspec[0]));
6180 if (RSPEC2RATE(rspec[0]) != WLC_RATE_1M)
6181 phyctl |= PHY_TXC_SHORT_HDR;
6182 WLCNTINCR(wlc->pub->_cnt->txprshort);
6185 /* phytxant is properly bit shifted */
6186 phyctl |= wlc_stf_d11hdrs_phyctl_txant(wlc, rspec[0]);
6187 txh->PhyTxControlWord = htol16(phyctl);
6189 /* PhyTxControlWord_1 */
6190 if (WLC_PHY_11N_CAP(wlc->band)) {
6193 phyctl1 = wlc_phytxctl1_calc(wlc, rspec[0]);
6194 txh->PhyTxControlWord_1 = htol16(phyctl1);
6195 phyctl1 = wlc_phytxctl1_calc(wlc, rspec[1]);
6196 txh->PhyTxControlWord_1_Fbr = htol16(phyctl1);
6198 if (use_rts || use_cts) {
6199 phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[0]);
6200 txh->PhyTxControlWord_1_Rts = htol16(phyctl1);
6201 phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[1]);
6202 txh->PhyTxControlWord_1_FbrRts = htol16(phyctl1);
6206 * For mcs frames, if mixedmode(overloaded with long preamble) is going to be set,
6207 * fill in non-zero MModeLen and/or MModeFbrLen
6208 * it will be unnecessary if they are separated
6210 if (IS_MCS(rspec[0]) && (preamble_type[0] == WLC_MM_PREAMBLE)) {
6212 wlc_calc_lsig_len(wlc, rspec[0], phylen);
6213 txh->MModeLen = htol16(mmodelen);
6216 if (IS_MCS(rspec[1]) && (preamble_type[1] == WLC_MM_PREAMBLE)) {
6218 wlc_calc_lsig_len(wlc, rspec[1], phylen);
6219 txh->MModeFbrLen = htol16(mmodefbrlen);
6223 if (IS_MCS(rspec[0]))
6224 ASSERT(IS_MCS(rspec[1]));
6226 ASSERT(!IS_MCS(rspec[0]) ||
6227 ((preamble_type[0] == WLC_MM_PREAMBLE) == (txh->MModeLen != 0)));
6228 ASSERT(!IS_MCS(rspec[1]) ||
6229 ((preamble_type[1] == WLC_MM_PREAMBLE) ==
6230 (txh->MModeFbrLen != 0)));
6232 ac = wme_fifo2ac[queue];
6233 if (SCB_WME(scb) && qos && wlc->edcf_txop[ac]) {
6234 uint frag_dur, dur, dur_fallback;
6236 ASSERT(!is_multicast_ether_addr(h->a1.octet));
6238 /* WME: Update TXOP threshold */
6239 if ((!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) && (frag == 0)) {
6241 wlc_calc_frame_time(wlc, rspec[0], preamble_type[0],
6245 /* 1 RTS or CTS-to-self frame */
6247 wlc_calc_cts_time(wlc, rts_rspec[0],
6248 rts_preamble_type[0]);
6250 wlc_calc_cts_time(wlc, rts_rspec[1],
6251 rts_preamble_type[1]);
6252 /* (SIFS + CTS) + SIFS + frame + SIFS + ACK */
6253 dur += ltoh16(rts->durid);
6254 dur_fallback += ltoh16(txh->RTSDurFallback);
6255 } else if (use_rifs) {
6259 /* frame + SIFS + ACK */
6262 wlc_compute_frame_dur(wlc, rspec[0],
6263 preamble_type[0], 0);
6266 wlc_calc_frame_time(wlc, rspec[1],
6270 wlc_compute_frame_dur(wlc, rspec[1],
6271 preamble_type[1], 0);
6273 /* NEED to set TxFesTimeNormal (hard) */
6274 txh->TxFesTimeNormal = htol16((u16) dur);
6275 /* NEED to set fallback rate version of TxFesTimeNormal (hard) */
6276 txh->TxFesTimeFallback = htol16((u16) dur_fallback);
6278 /* update txop byte threshold (txop minus intraframe overhead) */
6279 if (wlc->edcf_txop[ac] >= (dur - frag_dur)) {
6284 wlc_calc_frame_len(wlc, rspec[0],
6290 /* range bound the fragthreshold */
6291 if (newfragthresh < DOT11_MIN_FRAG_LEN)
6294 else if (newfragthresh >
6295 wlc->usr_fragthresh)
6297 wlc->usr_fragthresh;
6298 /* update the fragthresh and do txc update */
6299 if (wlc->fragthresh[queue] !=
6300 (u16) newfragthresh) {
6301 wlc->fragthresh[queue] =
6302 (u16) newfragthresh;
6306 WL_ERROR("wl%d: %s txop invalid for rate %d\n",
6307 wlc->pub->unit, fifo_names[queue],
6308 RSPEC2RATE(rspec[0]));
6310 if (dur > wlc->edcf_txop[ac])
6311 WL_ERROR("wl%d: %s: %s txop exceeded phylen %d/%d dur %d/%d\n",
6312 wlc->pub->unit, __func__,
6314 phylen, wlc->fragthresh[queue],
6315 dur, wlc->edcf_txop[ac]);
6322 void wlc_tbtt(struct wlc_info *wlc, d11regs_t *regs)
6324 wlc_bsscfg_t *cfg = wlc->cfg;
6326 WLCNTINCR(wlc->pub->_cnt->tbtt);
6328 if (BSSCFG_STA(cfg)) {
6329 /* run watchdog here if the watchdog timer is not armed */
6330 if (WLC_WATCHDOG_TBTT(wlc)) {
6333 wl_del_timer(wlc->wl, wlc->wdtimer);
6334 wlc->WDarmed = false;
6337 cur = OSL_SYSUPTIME();
6338 delta = cur > wlc->WDlast ? cur - wlc->WDlast :
6339 (u32) ~0 - wlc->WDlast + cur + 1;
6340 if (delta >= TIMER_INTERVAL_WATCHDOG) {
6341 wlc_watchdog((void *)wlc);
6345 wl_add_timer(wlc->wl, wlc->wdtimer,
6346 wlc_watchdog_backup_bi(wlc), true);
6347 wlc->WDarmed = true;
6352 /* DirFrmQ is now valid...defer setting until end of ATIM window */
6353 wlc->qvalid |= MCMD_DIRFRMQVAL;
6357 /* GP timer is a freerunning 32 bit counter, decrements at 1 us rate */
6358 void wlc_hwtimer_gptimer_set(struct wlc_info *wlc, uint us)
6360 ASSERT(wlc->pub->corerev >= 3); /* no gptimer in earlier revs */
6361 W_REG(wlc->osh, &wlc->regs->gptimer, us);
6364 void wlc_hwtimer_gptimer_abort(struct wlc_info *wlc)
6366 ASSERT(wlc->pub->corerev >= 3);
6367 W_REG(wlc->osh, &wlc->regs->gptimer, 0);
6370 static void wlc_hwtimer_gptimer_cb(struct wlc_info *wlc)
6372 /* when interrupt is generated, the counter is loaded with last value
6373 * written and continue to decrement. So it has to be cleaned first
6375 W_REG(wlc->osh, &wlc->regs->gptimer, 0);
6379 * This fn has all the high level dpc processing from wlc_dpc.
6380 * POLICY: no macinstatus change, no bounding loop.
6381 * All dpc bounding should be handled in BMAC dpc, like txstatus and rxint
6383 void wlc_high_dpc(struct wlc_info *wlc, u32 macintstatus)
6385 d11regs_t *regs = wlc->regs;
6388 static const bcm_bit_desc_t int_flags[] = {
6389 {MI_MACSSPNDD, "MACSSPNDD"},
6390 {MI_BCNTPL, "BCNTPL"},
6392 {MI_BCNSUCCESS, "BCNSUCCESS"},
6393 {MI_BCNCANCLD, "BCNCANCLD"},
6394 {MI_ATIMWINEND, "ATIMWINEND"},
6396 {MI_NSPECGEN_0, "NSPECGEN_0"},
6397 {MI_NSPECGEN_1, "NSPECGEN_1"},
6398 {MI_MACTXERR, "MACTXERR"},
6399 {MI_NSPECGEN_3, "NSPECGEN_3"},
6400 {MI_PHYTXERR, "PHYTXERR"},
6404 {MI_DMAINT, "DMAINT"},
6405 {MI_TXSTOP, "TXSTOP"},
6407 {MI_BG_NOISE, "BG_NOISE"},
6408 {MI_DTIM_TBTT, "DTIM_TBTT"},
6410 {MI_PWRUP, "PWRUP"},
6411 {MI_RFDISABLE, "RFDISABLE"},
6413 {MI_PHYCHANGED, "PHYCHANGED"},
6418 if (macintstatus & ~(MI_TBTT | MI_TXSTOP)) {
6419 bcm_format_flags(int_flags, macintstatus, flagstr,
6421 WL_TRACE("wl%d: macintstatus 0x%x %s\n",
6422 wlc->pub->unit, macintstatus, flagstr);
6426 if (macintstatus & MI_PRQ) {
6427 /* Process probe request FIFO */
6428 ASSERT(0 && "PRQ Interrupt in non-MBSS");
6431 /* TBTT indication */
6432 /* ucode only gives either TBTT or DTIM_TBTT, not both */
6433 if (macintstatus & (MI_TBTT | MI_DTIM_TBTT))
6434 wlc_tbtt(wlc, regs);
6436 if (macintstatus & MI_GP0) {
6437 WL_ERROR("wl%d: PSM microcode watchdog fired at %d (seconds). Resetting.\n",
6438 wlc->pub->unit, wlc->pub->now);
6440 printk_once("%s : PSM Watchdog, chipid 0x%x, chiprev 0x%x\n",
6441 __func__, wlc->pub->sih->chip,
6442 wlc->pub->sih->chiprev);
6444 WLCNTINCR(wlc->pub->_cnt->psmwds);
6450 /* gptimer timeout */
6451 if (macintstatus & MI_TO) {
6452 wlc_hwtimer_gptimer_cb(wlc);
6455 if (macintstatus & MI_RFDISABLE) {
6456 WL_ERROR("wl%d: MAC Detected a change on the RF Disable Input 0x%x\n",
6458 R_REG(wlc->osh, ®s->phydebug) & PDBG_RFD);
6459 /* delay the cleanup to wl_down in IBSS case */
6460 if ((R_REG(wlc->osh, ®s->phydebug) & PDBG_RFD)) {
6462 wlc_bsscfg_t *bsscfg;
6463 FOREACH_BSS(wlc, idx, bsscfg) {
6464 if (!BSSCFG_STA(bsscfg) || !bsscfg->enable
6467 WL_ERROR("wl%d: wlc_dpc: rfdisable -> wlc_bsscfg_disable()\n",
6473 /* send any enq'd tx packets. Just makes sure to jump start tx */
6474 if (!pktq_empty(&wlc->active_queue->q))
6475 wlc_send_q(wlc, wlc->active_queue);
6477 ASSERT(wlc_ps_check(wlc));
6480 static void *wlc_15420war(struct wlc_info *wlc, uint queue)
6482 struct hnddma_pub *di;
6485 ASSERT(queue < NFIFO);
6487 if ((D11REV_IS(wlc->pub->corerev, 4))
6488 || (D11REV_GT(wlc->pub->corerev, 6)))
6491 di = wlc->hw->di[queue];
6494 /* get next packet, ignoring XmtStatus.Curr */
6495 p = dma_getnexttxp(di, HNDDMA_RANGE_ALL);
6497 /* sw block tx dma */
6500 /* if tx ring is now empty, reset and re-init the tx dma channel */
6501 if (dma_txactive(wlc->hw->di[queue]) == 0) {
6502 WLCNTINCR(wlc->pub->_cnt->txdmawar);
6503 if (!dma_txreset(di))
6504 WL_ERROR("wl%d: %s: dma_txreset[%d]: cannot stop dma\n",
6505 wlc->pub->unit, __func__, queue);
6511 static void wlc_war16165(struct wlc_info *wlc, bool tx)
6514 /* the post-increment is used in STAY_AWAKE macro */
6515 if (wlc->txpend16165war++ == 0)
6516 wlc_set_ps_ctrl(wlc);
6518 wlc->txpend16165war--;
6519 if (wlc->txpend16165war == 0)
6520 wlc_set_ps_ctrl(wlc);
6524 /* process an individual tx_status_t */
6527 wlc_dotxstatus(struct wlc_info *wlc, tx_status_t *txs, u32 frm_tx2)
6532 struct scb *scb = NULL;
6534 struct osl_info *osh;
6535 int tx_rts, tx_frame_count, tx_rts_count;
6536 uint totlen, supr_status;
6538 struct dot11_header *h;
6541 struct ieee80211_tx_info *tx_info;
6542 struct ieee80211_tx_rate *txrate;
6545 (void)(frm_tx2); /* Compiler reference to avoid unused variable warning */
6547 /* discard intermediate indications for ucode with one legitimate case:
6548 * e.g. if "useRTS" is set. ucode did a successful rts/cts exchange, but the subsequent
6549 * tx of DATA failed. so it will start rts/cts from the beginning (resetting the rts
6550 * transmission count)
6552 if (!(txs->status & TX_STATUS_AMPDU)
6553 && (txs->status & TX_STATUS_INTERMEDIATE)) {
6554 WLCNTADD(wlc->pub->_cnt->txnoack,
6556 status & TX_STATUS_FRM_RTX_MASK) >>
6557 TX_STATUS_FRM_RTX_SHIFT));
6558 WL_ERROR("%s: INTERMEDIATE but not AMPDU\n", __func__);
6563 queue = txs->frameid & TXFID_QUEUE_MASK;
6564 ASSERT(queue < NFIFO);
6565 if (queue >= NFIFO) {
6570 p = GETNEXTTXP(wlc, queue);
6571 if (WLC_WAR16165(wlc))
6572 wlc_war16165(wlc, false);
6574 p = wlc_15420war(wlc, queue);
6579 txh = (d11txh_t *) (p->data);
6580 mcl = ltoh16(txh->MacTxControlLow);
6583 WL_ERROR("phyerr 0x%x, rate 0x%x\n",
6584 txs->phyerr, txh->MainRates);
6585 wlc_print_txdesc(txh);
6586 wlc_print_txstatus(txs);
6589 ASSERT(txs->frameid == htol16(txh->TxFrameID));
6590 if (txs->frameid != htol16(txh->TxFrameID))
6593 tx_info = IEEE80211_SKB_CB(p);
6594 h = (struct dot11_header *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
6597 scb = (struct scb *)tx_info->control.sta->drv_priv;
6599 if (N_ENAB(wlc->pub)) {
6600 u8 *plcp = (u8 *) (txh + 1);
6601 if (PLCP3_ISSGI(plcp[3]))
6602 WLCNTINCR(wlc->pub->_cnt->txmpdu_sgi);
6603 if (PLCP3_ISSTBC(plcp[3]))
6604 WLCNTINCR(wlc->pub->_cnt->txmpdu_stbc);
6607 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
6608 ASSERT((mcl & TXC_AMPDU_MASK) != TXC_AMPDU_NONE);
6609 wlc_ampdu_dotxstatus(wlc->ampdu, scb, p, txs);
6613 supr_status = txs->status & TX_STATUS_SUPR_MASK;
6614 if (supr_status == TX_STATUS_SUPR_BADCH)
6615 WL_NONE("%s: Pkt tx suppressed, possibly channel %d\n",
6616 __func__, CHSPEC_CHANNEL(wlc->default_bss->chanspec));
6618 tx_rts = htol16(txh->MacTxControlLow) & TXC_SENDRTS;
6620 (txs->status & TX_STATUS_FRM_RTX_MASK) >> TX_STATUS_FRM_RTX_SHIFT;
6622 (txs->status & TX_STATUS_RTS_RTX_MASK) >> TX_STATUS_RTS_RTX_SHIFT;
6624 lastframe = (fc & FC_MOREFRAG) == 0;
6627 WL_ERROR("Not last frame!\n");
6630 ieee80211_tx_info_clear_status(tx_info);
6631 if (queue < AC_COUNT) {
6632 sfbl = WLC_WME_RETRY_SFB_GET(wlc, wme_fifo2ac[queue]);
6633 lfbl = WLC_WME_RETRY_LFB_GET(wlc, wme_fifo2ac[queue]);
6639 txrate = tx_info->status.rates;
6640 /* FIXME: this should use a combination of sfbl, lfbl depending on frame length and RTS setting */
6641 if ((tx_frame_count > sfbl) && (txrate[1].idx >= 0)) {
6642 /* rate selection requested a fallback rate and we used it */
6643 txrate->count = lfbl;
6644 txrate[1].count = tx_frame_count - lfbl;
6646 /* rate selection did not request fallback rate, or we didn't need it */
6647 txrate->count = tx_frame_count;
6648 /* rc80211_minstrel.c:minstrel_tx_status() expects unused rates to be marked with idx = -1 */
6650 txrate[1].count = 0;
6653 /* clear the rest of the rates */
6654 for (i = 2; i < IEEE80211_TX_MAX_RATES; i++) {
6656 txrate[i].count = 0;
6659 if (txs->status & TX_STATUS_ACK_RCV)
6660 tx_info->flags |= IEEE80211_TX_STAT_ACK;
6663 totlen = pkttotlen(osh, p);
6666 wlc_txfifo_complete(wlc, queue, 1);
6672 /* remove PLCP & Broadcom tx descriptor header */
6673 skb_pull(p, D11_PHY_HDR_LEN);
6674 skb_pull(p, D11_TXH_LEN);
6675 ieee80211_tx_status_irqsafe(wlc->pub->ieee_hw, p);
6676 WLCNTINCR(wlc->pub->_cnt->ieee_tx_status);
6678 WL_ERROR("%s: Not last frame => not calling tx_status\n",
6687 pkt_buf_free_skb(osh, p, true);
6694 wlc_txfifo_complete(struct wlc_info *wlc, uint fifo, s8 txpktpend)
6696 TXPKTPENDDEC(wlc, fifo, txpktpend);
6697 WL_TRACE("wlc_txfifo_complete, pktpend dec %d to %d\n",
6698 txpktpend, TXPKTPENDGET(wlc, fifo));
6700 /* There is more room; mark precedences related to this FIFO sendable */
6701 WLC_TX_FIFO_ENAB(wlc, fifo);
6702 ASSERT(TXPKTPENDGET(wlc, fifo) >= 0);
6704 if (!TXPKTPENDTOT(wlc)) {
6705 if (wlc->block_datafifo & DATA_BLOCK_TX_SUPR)
6706 wlc_bsscfg_tx_check(wlc);
6709 /* Clear MHF2_TXBCMC_NOW flag if BCMC fifo has drained */
6710 if (AP_ENAB(wlc->pub) &&
6711 wlc->bcmcfifo_drain && !TXPKTPENDGET(wlc, TX_BCMC_FIFO)) {
6712 wlc->bcmcfifo_drain = false;
6713 wlc_mhf(wlc, MHF2, MHF2_TXBCMC_NOW, 0, WLC_BAND_AUTO);
6716 /* figure out which bsscfg is being worked on... */
6719 /* Given the beacon interval in kus, and a 64 bit TSF in us,
6720 * return the offset (in us) of the TSF from the last TBTT
6722 u32 wlc_calc_tbtt_offset(u32 bp, u32 tsf_h, u32 tsf_l)
6724 u32 k, btklo, btkhi, offset;
6726 /* TBTT is always an even multiple of the beacon_interval,
6727 * so the TBTT less than or equal to the beacon timestamp is
6728 * the beacon timestamp minus the beacon timestamp modulo
6729 * the beacon interval.
6731 * TBTT = BT - (BT % BIu)
6732 * = (BTk - (BTk % BP)) * 2^10
6734 * BT = beacon timestamp (usec, 64bits)
6735 * BTk = beacon timestamp (Kusec, 54bits)
6736 * BP = beacon interval (Kusec, 16bits)
6737 * BIu = BP * 2^10 = beacon interval (usec, 26bits)
6739 * To keep the calculations in u32s, the modulo operation
6740 * on the high part of BT needs to be done in parts using the
6742 * X*Y mod Z = ((X mod Z) * (Y mod Z)) mod Z
6744 * (X + Y) mod Z = ((X mod Z) + (Y mod Z)) mod Z
6746 * So, if BTk[n] = u16 n [0,3] of BTk.
6747 * BTk % BP = SUM((BTk[n] * 2^16n) % BP , 0<=n<4) % BP
6748 * and the SUM term can be broken down:
6749 * (BTk[n] * 2^16n) % BP
6750 * (BTk[n] * (2^16n % BP)) % BP
6752 * Create a set of power of 2 mod BP constants:
6753 * K[n] = 2^(16n) % BP
6754 * = (K[n-1] * 2^16) % BP
6755 * K[2] = 2^32 % BP = ((2^16 % BP) * 2^16) % BP
6757 * BTk % BP = BTk[0-1] % BP +
6758 * (BTk[2] * K[2]) % BP +
6759 * (BTk[3] * K[3]) % BP
6761 * Since K[n] < 2^16 and BTk[n] is < 2^16, then BTk[n] * K[n] < 2^32
6764 /* BTk = BT >> 10, btklo = BTk[0-3], bkthi = BTk[4-6] */
6765 btklo = (tsf_h << 22) | (tsf_l >> 10);
6766 btkhi = tsf_h >> 10;
6768 /* offset = BTk % BP */
6769 offset = btklo % bp;
6771 /* K[2] = ((2^16 % BP) * 2^16) % BP */
6772 k = (u32) (1 << 16) % bp;
6773 k = (u32) (k * 1 << 16) % (u32) bp;
6775 /* offset += (BTk[2] * K[2]) % BP */
6776 offset += ((btkhi & 0xffff) * k) % bp;
6779 btkhi = btkhi >> 16;
6781 /* k[3] = (K[2] * 2^16) % BP */
6784 /* offset += (BTk[3] * K[3]) % BP */
6785 offset += ((btkhi & 0xffff) * k) % bp;
6787 offset = offset % bp;
6789 /* convert offset from kus to us by shifting up 10 bits and
6790 * add in the low 10 bits of tsf that we ignored
6792 offset = (offset << 10) + (tsf_l & 0x3FF);
6797 /* Update beacon listen interval in shared memory */
6798 void wlc_bcn_li_upd(struct wlc_info *wlc)
6800 if (AP_ENAB(wlc->pub))
6803 /* wake up every DTIM is the default */
6804 if (wlc->bcn_li_dtim == 1)
6805 wlc_write_shm(wlc, M_BCN_LI, 0);
6807 wlc_write_shm(wlc, M_BCN_LI,
6808 (wlc->bcn_li_dtim << 8) | wlc->bcn_li_bcn);
6812 prep_mac80211_status(struct wlc_info *wlc, d11rxhdr_t *rxh, struct sk_buff *p,
6813 struct ieee80211_rx_status *rx_status)
6816 wlc_d11rxhdr_t *wlc_rxh = (wlc_d11rxhdr_t *) rxh;
6820 unsigned char *plcp;
6822 wlc_read_tsf(wlc, &tsf_l, &tsf_h); /* mactime */
6823 rx_status->mactime = tsf_h;
6824 rx_status->mactime <<= 32;
6825 rx_status->mactime |= tsf_l;
6826 rx_status->flag |= RX_FLAG_TSFT;
6828 channel = WLC_CHAN_CHANNEL(rxh->RxChan);
6830 /* XXX Channel/badn needs to be filtered against whether we are single/dual band card */
6832 rx_status->band = IEEE80211_BAND_5GHZ;
6833 rx_status->freq = wf_channel2mhz(channel, WF_CHAN_FACTOR_5_G);
6835 rx_status->band = IEEE80211_BAND_2GHZ;
6836 rx_status->freq = wf_channel2mhz(channel, WF_CHAN_FACTOR_2_4_G);
6839 rx_status->signal = wlc_rxh->rssi; /* signal */
6843 rx_status->antenna = (rxh->PhyRxStatus_0 & PRXS0_RXANT_UPSUBBAND) ? 1 : 0; /* ant */
6847 rspec = wlc_compute_rspec(rxh, plcp);
6848 if (IS_MCS(rspec)) {
6849 rx_status->rate_idx = rspec & RSPEC_RATE_MASK;
6850 rx_status->flag |= RX_FLAG_HT;
6851 if (RSPEC_IS40MHZ(rspec))
6852 rx_status->flag |= RX_FLAG_40MHZ;
6854 switch (RSPEC2RATE(rspec)) {
6856 rx_status->rate_idx = 0;
6859 rx_status->rate_idx = 1;
6862 rx_status->rate_idx = 2;
6865 rx_status->rate_idx = 3;
6868 rx_status->rate_idx = 4;
6871 rx_status->rate_idx = 5;
6874 rx_status->rate_idx = 6;
6877 rx_status->rate_idx = 7;
6880 rx_status->rate_idx = 8;
6883 rx_status->rate_idx = 9;
6886 rx_status->rate_idx = 10;
6889 rx_status->rate_idx = 11;
6892 WL_ERROR("%s: Unknown rate\n", __func__);
6895 /* Determine short preamble and rate_idx */
6897 if (IS_CCK(rspec)) {
6898 if (rxh->PhyRxStatus_0 & PRXS0_SHORTH)
6899 WL_ERROR("Short CCK\n");
6900 rx_status->flag |= RX_FLAG_SHORTPRE;
6901 } else if (IS_OFDM(rspec)) {
6902 rx_status->flag |= RX_FLAG_SHORTPRE;
6904 WL_ERROR("%s: Unknown modulation\n", __func__);
6908 if (PLCP3_ISSGI(plcp[3]))
6909 rx_status->flag |= RX_FLAG_SHORT_GI;
6911 if (rxh->RxStatus1 & RXS_DECERR) {
6912 rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;
6913 WL_ERROR("%s: RX_FLAG_FAILED_PLCP_CRC\n", __func__);
6915 if (rxh->RxStatus1 & RXS_FCSERR) {
6916 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
6917 WL_ERROR("%s: RX_FLAG_FAILED_FCS_CRC\n", __func__);
6922 wlc_recvctl(struct wlc_info *wlc, struct osl_info *osh, d11rxhdr_t *rxh,
6926 struct ieee80211_rx_status rx_status;
6928 struct sk_buff *skb = p;
6931 * Cache plcp for first MPDU of AMPD and use chacched version for INTERMEDIATE.
6932 * Test for INTERMEDIATE like so:
6933 * if (!(plcp[0] | plcp[1] | plcp[2]))
6936 memset(&rx_status, 0, sizeof(rx_status));
6937 prep_mac80211_status(wlc, rxh, p, &rx_status);
6939 /* mac header+body length, exclude CRC and plcp header */
6940 len_mpdu = p->len - D11_PHY_HDR_LEN - DOT11_FCS_LEN;
6941 skb_pull(p, D11_PHY_HDR_LEN);
6942 __skb_trim(p, len_mpdu);
6947 ASSERT(IS_ALIGNED((unsigned long)skb->data, 2));
6949 memcpy(IEEE80211_SKB_RXCB(p), &rx_status, sizeof(rx_status));
6950 ieee80211_rx_irqsafe(wlc->pub->ieee_hw, p);
6952 WLCNTINCR(wlc->pub->_cnt->ieee_rx);
6957 void wlc_bss_list_free(struct wlc_info *wlc, wlc_bss_list_t *bss_list)
6963 WL_ERROR("%s: Attempting to free NULL list\n", __func__);
6966 /* inspect all BSS descriptor */
6967 for (index = 0; index < bss_list->count; index++) {
6968 bi = bss_list->ptrs[index];
6974 bss_list->ptrs[index] = NULL;
6977 bss_list->count = 0;
6980 /* Process received frames */
6982 * Return true if more frames need to be processed. false otherwise.
6983 * Param 'bound' indicates max. # frames to process before break out.
6986 void BCMFASTPATH wlc_recv(struct wlc_info *wlc, struct sk_buff *p)
6989 struct dot11_header *h;
6990 struct osl_info *osh;
6995 WL_TRACE("wl%d: wlc_recv\n", wlc->pub->unit);
6999 /* frame starts with rxhdr */
7000 rxh = (d11rxhdr_t *) (p->data);
7002 /* strip off rxhdr */
7003 skb_pull(p, wlc->hwrxoff);
7005 /* fixup rx header endianness */
7006 ltoh16_buf((void *)rxh, sizeof(d11rxhdr_t));
7008 /* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU subframes */
7009 if (rxh->RxStatus1 & RXS_PBPRES) {
7011 WLCNTINCR(wlc->pub->_cnt->rxrunt);
7012 WL_ERROR("wl%d: wlc_recv: rcvd runt of len %d\n",
7013 wlc->pub->unit, p->len);
7019 h = (struct dot11_header *)(p->data + D11_PHY_HDR_LEN);
7022 if (rxh->RxStatus1 & RXS_FCSERR) {
7023 if (wlc->pub->mac80211_state & MAC80211_PROMISC_BCNS) {
7024 WL_ERROR("FCSERR while scanning******* - tossing\n");
7027 WL_ERROR("RCSERR!!!\n");
7032 /* check received pkt has at least frame control field */
7033 if (len >= D11_PHY_HDR_LEN + sizeof(h->fc)) {
7036 WLCNTINCR(wlc->pub->_cnt->rxrunt);
7040 is_amsdu = rxh->RxStatus2 & RXS_AMSDU_MASK;
7042 /* explicitly test bad src address to avoid sending bad deauth */
7044 /* CTS and ACK CTL frames are w/o a2 */
7045 if (FC_TYPE(fc) == FC_TYPE_DATA || FC_TYPE(fc) == FC_TYPE_MNG) {
7046 if ((is_zero_ether_addr(h->a2.octet) ||
7047 is_multicast_ether_addr(h->a2.octet))) {
7048 WL_ERROR("wl%d: %s: dropping a frame with invalid src mac address, a2: %pM\n",
7049 wlc->pub->unit, __func__, &h->a2);
7050 WLCNTINCR(wlc->pub->_cnt->rxbadsrcmac);
7053 WLCNTINCR(wlc->pub->_cnt->rxfrag);
7057 /* due to sheer numbers, toss out probe reqs for now */
7058 if (FC_TYPE(fc) == FC_TYPE_MNG) {
7059 if ((fc & FC_KIND_MASK) == FC_PROBE_REQ)
7064 WL_ERROR("%s: is_amsdu causing toss\n", __func__);
7068 wlc_recvctl(wlc, osh, rxh, p);
7072 pkt_buf_free_skb(osh, p, false);
7075 /* calculate frame duration for Mixed-mode L-SIG spoofing, return
7076 * number of bytes goes in the length field
7078 * Formula given by HT PHY Spec v 1.13
7079 * len = 3(nsyms + nstream + 3) - 3
7082 wlc_calc_lsig_len(struct wlc_info *wlc, ratespec_t ratespec, uint mac_len)
7084 uint nsyms, len = 0, kNdps;
7086 WL_TRACE("wl%d: wlc_calc_lsig_len: rate %d, len%d\n",
7087 wlc->pub->unit, RSPEC2RATE(ratespec), mac_len);
7089 if (IS_MCS(ratespec)) {
7090 uint mcs = ratespec & RSPEC_RATE_MASK;
7091 /* MCS_TXS(mcs) returns num tx streams - 1 */
7092 int tot_streams = (MCS_TXS(mcs) + 1) + RSPEC_STC(ratespec);
7094 ASSERT(WLC_PHY_11N_CAP(wlc->band));
7095 /* the payload duration calculation matches that of regular ofdm */
7096 /* 1000Ndbps = kbps * 4 */
7098 MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
7099 RSPEC_ISSGI(ratespec)) * 4;
7101 if (RSPEC_STC(ratespec) == 0)
7102 /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
7104 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7105 APHY_TAIL_NBITS) * 1000, kNdps);
7107 /* STBC needs to have even number of symbols */
7110 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7111 APHY_TAIL_NBITS) * 1000, 2 * kNdps);
7113 nsyms += (tot_streams + 3); /* (+3) account for HT-SIG(2) and HT-STF(1) */
7114 /* 3 bytes/symbol @ legacy 6Mbps rate */
7115 len = (3 * nsyms) - 3; /* (-3) excluding service bits and tail bits */
7121 /* calculate frame duration of a given rate and length, return time in usec unit */
7123 wlc_calc_frame_time(struct wlc_info *wlc, ratespec_t ratespec, u8 preamble_type,
7126 uint nsyms, dur = 0, Ndps, kNdps;
7127 uint rate = RSPEC2RATE(ratespec);
7131 WL_ERROR("wl%d: WAR: using rate of 1 mbps\n", wlc->pub->unit);
7135 WL_TRACE("wl%d: wlc_calc_frame_time: rspec 0x%x, preamble_type %d, len%d\n",
7136 wlc->pub->unit, ratespec, preamble_type, mac_len);
7138 if (IS_MCS(ratespec)) {
7139 uint mcs = ratespec & RSPEC_RATE_MASK;
7140 int tot_streams = MCS_TXS(mcs) + RSPEC_STC(ratespec);
7141 ASSERT(WLC_PHY_11N_CAP(wlc->band));
7142 ASSERT(WLC_IS_MIMO_PREAMBLE(preamble_type));
7144 dur = PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
7145 if (preamble_type == WLC_MM_PREAMBLE)
7147 /* 1000Ndbps = kbps * 4 */
7149 MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
7150 RSPEC_ISSGI(ratespec)) * 4;
7152 if (RSPEC_STC(ratespec) == 0)
7153 /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
7155 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7156 APHY_TAIL_NBITS) * 1000, kNdps);
7158 /* STBC needs to have even number of symbols */
7161 CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
7162 APHY_TAIL_NBITS) * 1000, 2 * kNdps);
7164 dur += APHY_SYMBOL_TIME * nsyms;
7165 if (BAND_2G(wlc->band->bandtype))
7166 dur += DOT11_OFDM_SIGNAL_EXTENSION;
7167 } else if (IS_OFDM(rate)) {
7168 dur = APHY_PREAMBLE_TIME;
7169 dur += APHY_SIGNAL_TIME;
7170 /* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
7172 /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
7174 CEIL((APHY_SERVICE_NBITS + 8 * mac_len + APHY_TAIL_NBITS),
7176 dur += APHY_SYMBOL_TIME * nsyms;
7177 if (BAND_2G(wlc->band->bandtype))
7178 dur += DOT11_OFDM_SIGNAL_EXTENSION;
7180 /* calc # bits * 2 so factor of 2 in rate (1/2 mbps) will divide out */
7181 mac_len = mac_len * 8 * 2;
7182 /* calc ceiling of bits/rate = microseconds of air time */
7183 dur = (mac_len + rate - 1) / rate;
7184 if (preamble_type & WLC_SHORT_PREAMBLE)
7185 dur += BPHY_PLCP_SHORT_TIME;
7187 dur += BPHY_PLCP_TIME;
7192 /* The opposite of wlc_calc_frame_time */
7194 wlc_calc_frame_len(struct wlc_info *wlc, ratespec_t ratespec, u8 preamble_type,
7197 uint nsyms, mac_len, Ndps, kNdps;
7198 uint rate = RSPEC2RATE(ratespec);
7200 WL_TRACE("wl%d: wlc_calc_frame_len: rspec 0x%x, preamble_type %d, dur %d\n",
7201 wlc->pub->unit, ratespec, preamble_type, dur);
7203 if (IS_MCS(ratespec)) {
7204 uint mcs = ratespec & RSPEC_RATE_MASK;
7205 int tot_streams = MCS_TXS(mcs) + RSPEC_STC(ratespec);
7206 ASSERT(WLC_PHY_11N_CAP(wlc->band));
7207 dur -= PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
7208 /* payload calculation matches that of regular ofdm */
7209 if (BAND_2G(wlc->band->bandtype))
7210 dur -= DOT11_OFDM_SIGNAL_EXTENSION;
7211 /* kNdbps = kbps * 4 */
7213 MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
7214 RSPEC_ISSGI(ratespec)) * 4;
7215 nsyms = dur / APHY_SYMBOL_TIME;
7218 ((APHY_SERVICE_NBITS + APHY_TAIL_NBITS) * 1000)) / 8000;
7219 } else if (IS_OFDM(ratespec)) {
7220 dur -= APHY_PREAMBLE_TIME;
7221 dur -= APHY_SIGNAL_TIME;
7222 /* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
7224 nsyms = dur / APHY_SYMBOL_TIME;
7227 (APHY_SERVICE_NBITS + APHY_TAIL_NBITS)) / 8;
7229 if (preamble_type & WLC_SHORT_PREAMBLE)
7230 dur -= BPHY_PLCP_SHORT_TIME;
7232 dur -= BPHY_PLCP_TIME;
7233 mac_len = dur * rate;
7234 /* divide out factor of 2 in rate (1/2 mbps) */
7235 mac_len = mac_len / 8 / 2;
7241 wlc_calc_ba_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
7243 WL_TRACE("wl%d: wlc_calc_ba_time: rspec 0x%x, preamble_type %d\n",
7244 wlc->pub->unit, rspec, preamble_type);
7245 /* Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that is less than
7246 * or equal to the rate of the immediately previous frame in the FES
7248 rspec = WLC_BASIC_RATE(wlc, rspec);
7249 ASSERT(VALID_RATE_DBG(wlc, rspec));
7251 /* BA len == 32 == 16(ctl hdr) + 4(ba len) + 8(bitmap) + 4(fcs) */
7252 return wlc_calc_frame_time(wlc, rspec, preamble_type,
7253 (DOT11_BA_LEN + DOT11_BA_BITMAP_LEN +
7257 static uint BCMFASTPATH
7258 wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
7262 WL_TRACE("wl%d: wlc_calc_ack_time: rspec 0x%x, preamble_type %d\n",
7263 wlc->pub->unit, rspec, preamble_type);
7264 /* Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that is less than
7265 * or equal to the rate of the immediately previous frame in the FES
7267 rspec = WLC_BASIC_RATE(wlc, rspec);
7268 ASSERT(VALID_RATE_DBG(wlc, rspec));
7270 /* ACK frame len == 14 == 2(fc) + 2(dur) + 6(ra) + 4(fcs) */
7272 wlc_calc_frame_time(wlc, rspec, preamble_type,
7273 (DOT11_ACK_LEN + DOT11_FCS_LEN));
7278 wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
7280 WL_TRACE("wl%d: wlc_calc_cts_time: ratespec 0x%x, preamble_type %d\n",
7281 wlc->pub->unit, rspec, preamble_type);
7282 return wlc_calc_ack_time(wlc, rspec, preamble_type);
7285 /* derive wlc->band->basic_rate[] table from 'rateset' */
7286 void wlc_rate_lookup_init(struct wlc_info *wlc, wlc_rateset_t *rateset)
7292 u8 *br = wlc->band->basic_rate;
7295 /* incoming rates are in 500kbps units as in 802.11 Supported Rates */
7296 memset(br, 0, WLC_MAXRATE + 1);
7298 /* For each basic rate in the rates list, make an entry in the
7299 * best basic lookup.
7301 for (i = 0; i < rateset->count; i++) {
7302 /* only make an entry for a basic rate */
7303 if (!(rateset->rates[i] & WLC_RATE_FLAG))
7306 /* mask off basic bit */
7307 rate = (rateset->rates[i] & RATE_MASK);
7309 if (rate > WLC_MAXRATE) {
7310 WL_ERROR("wlc_rate_lookup_init: invalid rate 0x%X in rate set\n",
7318 /* The rate lookup table now has non-zero entries for each
7319 * basic rate, equal to the basic rate: br[basicN] = basicN
7321 * To look up the best basic rate corresponding to any
7322 * particular rate, code can use the basic_rate table
7325 * basic_rate = wlc->band->basic_rate[tx_rate]
7327 * Make sure there is a best basic rate entry for
7328 * every rate by walking up the table from low rates
7329 * to high, filling in holes in the lookup table
7332 for (i = 0; i < wlc->band->hw_rateset.count; i++) {
7333 rate = wlc->band->hw_rateset.rates[i];
7334 ASSERT(rate <= WLC_MAXRATE);
7336 if (br[rate] != 0) {
7337 /* This rate is a basic rate.
7338 * Keep track of the best basic rate so far by
7349 /* This rate is not a basic rate so figure out the
7350 * best basic rate less than this rate and fill in
7351 * the hole in the table
7354 br[rate] = IS_OFDM(rate) ? ofdm_basic : cck_basic;
7359 if (IS_OFDM(rate)) {
7360 /* In 11g and 11a, the OFDM mandatory rates are 6, 12, and 24 Mbps */
7361 if (rate >= WLC_RATE_24M)
7362 mandatory = WLC_RATE_24M;
7363 else if (rate >= WLC_RATE_12M)
7364 mandatory = WLC_RATE_12M;
7366 mandatory = WLC_RATE_6M;
7368 /* In 11b, all the CCK rates are mandatory 1 - 11 Mbps */
7372 br[rate] = mandatory;
7376 static void wlc_write_rate_shm(struct wlc_info *wlc, u8 rate, u8 basic_rate)
7379 u8 basic_phy_rate, basic_index;
7380 u16 dir_table, basic_table;
7383 /* Shared memory address for the table we are reading */
7384 dir_table = IS_OFDM(basic_rate) ? M_RT_DIRMAP_A : M_RT_DIRMAP_B;
7386 /* Shared memory address for the table we are writing */
7387 basic_table = IS_OFDM(rate) ? M_RT_BBRSMAP_A : M_RT_BBRSMAP_B;
7390 * for a given rate, the LS-nibble of the PLCP SIGNAL field is
7391 * the index into the rate table.
7393 phy_rate = rate_info[rate] & RATE_MASK;
7394 basic_phy_rate = rate_info[basic_rate] & RATE_MASK;
7395 index = phy_rate & 0xf;
7396 basic_index = basic_phy_rate & 0xf;
7398 /* Find the SHM pointer to the ACK rate entry by looking in the
7401 basic_ptr = wlc_read_shm(wlc, (dir_table + basic_index * 2));
7403 /* Update the SHM BSS-basic-rate-set mapping table with the pointer
7404 * to the correct basic rate for the given incoming rate
7406 wlc_write_shm(wlc, (basic_table + index * 2), basic_ptr);
7409 static const wlc_rateset_t *wlc_rateset_get_hwrs(struct wlc_info *wlc)
7411 const wlc_rateset_t *rs_dflt;
7413 if (WLC_PHY_11N_CAP(wlc->band)) {
7414 if (BAND_5G(wlc->band->bandtype))
7415 rs_dflt = &ofdm_mimo_rates;
7417 rs_dflt = &cck_ofdm_mimo_rates;
7418 } else if (wlc->band->gmode)
7419 rs_dflt = &cck_ofdm_rates;
7421 rs_dflt = &cck_rates;
7426 void wlc_set_ratetable(struct wlc_info *wlc)
7428 const wlc_rateset_t *rs_dflt;
7430 u8 rate, basic_rate;
7433 rs_dflt = wlc_rateset_get_hwrs(wlc);
7434 ASSERT(rs_dflt != NULL);
7436 wlc_rateset_copy(rs_dflt, &rs);
7437 wlc_rateset_mcs_upd(&rs, wlc->stf->txstreams);
7439 /* walk the phy rate table and update SHM basic rate lookup table */
7440 for (i = 0; i < rs.count; i++) {
7441 rate = rs.rates[i] & RATE_MASK;
7443 /* for a given rate WLC_BASIC_RATE returns the rate at
7444 * which a response ACK/CTS should be sent.
7446 basic_rate = WLC_BASIC_RATE(wlc, rate);
7447 if (basic_rate == 0) {
7448 /* This should only happen if we are using a
7449 * restricted rateset.
7451 basic_rate = rs.rates[0] & RATE_MASK;
7454 wlc_write_rate_shm(wlc, rate, basic_rate);
7459 * Return true if the specified rate is supported by the specified band.
7460 * WLC_BAND_AUTO indicates the current band.
7462 bool wlc_valid_rate(struct wlc_info *wlc, ratespec_t rspec, int band,
7465 wlc_rateset_t *hw_rateset;
7468 if ((band == WLC_BAND_AUTO) || (band == wlc->band->bandtype)) {
7469 hw_rateset = &wlc->band->hw_rateset;
7470 } else if (NBANDS(wlc) > 1) {
7471 hw_rateset = &wlc->bandstate[OTHERBANDUNIT(wlc)]->hw_rateset;
7473 /* other band specified and we are a single band device */
7477 /* check if this is a mimo rate */
7478 if (IS_MCS(rspec)) {
7479 if (!VALID_MCS((rspec & RSPEC_RATE_MASK)))
7482 return isset(hw_rateset->mcs, (rspec & RSPEC_RATE_MASK));
7485 for (i = 0; i < hw_rateset->count; i++)
7486 if (hw_rateset->rates[i] == RSPEC2RATE(rspec))
7490 WL_ERROR("wl%d: wlc_valid_rate: rate spec 0x%x not in hw_rateset\n",
7491 wlc->pub->unit, rspec);
7497 static void wlc_update_mimo_band_bwcap(struct wlc_info *wlc, u8 bwcap)
7500 struct wlcband *band;
7502 for (i = 0; i < NBANDS(wlc); i++) {
7503 if (IS_SINGLEBAND_5G(wlc->deviceid))
7505 band = wlc->bandstate[i];
7506 if (band->bandtype == WLC_BAND_5G) {
7507 if ((bwcap == WLC_N_BW_40ALL)
7508 || (bwcap == WLC_N_BW_20IN2G_40IN5G))
7509 band->mimo_cap_40 = true;
7511 band->mimo_cap_40 = false;
7513 ASSERT(band->bandtype == WLC_BAND_2G);
7514 if (bwcap == WLC_N_BW_40ALL)
7515 band->mimo_cap_40 = true;
7517 band->mimo_cap_40 = false;
7521 wlc->mimo_band_bwcap = bwcap;
7524 void wlc_mod_prb_rsp_rate_table(struct wlc_info *wlc, uint frame_len)
7526 const wlc_rateset_t *rs_dflt;
7530 u8 plcp[D11_PHY_HDR_LEN];
7534 sifs = SIFS(wlc->band);
7536 rs_dflt = wlc_rateset_get_hwrs(wlc);
7537 ASSERT(rs_dflt != NULL);
7539 wlc_rateset_copy(rs_dflt, &rs);
7540 wlc_rateset_mcs_upd(&rs, wlc->stf->txstreams);
7542 /* walk the phy rate table and update MAC core SHM basic rate table entries */
7543 for (i = 0; i < rs.count; i++) {
7544 rate = rs.rates[i] & RATE_MASK;
7546 entry_ptr = wlc_rate_shm_offset(wlc, rate);
7548 /* Calculate the Probe Response PLCP for the given rate */
7549 wlc_compute_plcp(wlc, rate, frame_len, plcp);
7551 /* Calculate the duration of the Probe Response frame plus SIFS for the MAC */
7553 (u16) wlc_calc_frame_time(wlc, rate, WLC_LONG_PREAMBLE,
7557 /* Update the SHM Rate Table entry Probe Response values */
7558 wlc_write_shm(wlc, entry_ptr + M_RT_PRS_PLCP_POS,
7559 (u16) (plcp[0] + (plcp[1] << 8)));
7560 wlc_write_shm(wlc, entry_ptr + M_RT_PRS_PLCP_POS + 2,
7561 (u16) (plcp[2] + (plcp[3] << 8)));
7562 wlc_write_shm(wlc, entry_ptr + M_RT_PRS_DUR_POS, dur);
7567 wlc_compute_bcntsfoff(struct wlc_info *wlc, ratespec_t rspec,
7568 bool short_preamble, bool phydelay)
7572 if (IS_MCS(rspec)) {
7573 WL_ERROR("wl%d: recd beacon with mcs rate; rspec 0x%x\n",
7574 wlc->pub->unit, rspec);
7575 } else if (IS_OFDM(rspec)) {
7576 /* tx delay from MAC through phy to air (2.1 usec) +
7577 * phy header time (preamble + PLCP SIGNAL == 20 usec) +
7578 * PLCP SERVICE + MAC header time (SERVICE + FC + DUR + A1 + A2 + A3 + SEQ == 26
7579 * bytes at beacon rate)
7581 bcntsfoff += phydelay ? D11A_PHY_TX_DELAY : 0;
7582 bcntsfoff += APHY_PREAMBLE_TIME + APHY_SIGNAL_TIME;
7584 wlc_compute_airtime(wlc, rspec,
7585 APHY_SERVICE_NBITS / 8 +
7588 /* tx delay from MAC through phy to air (3.4 usec) +
7589 * phy header time (long preamble + PLCP == 192 usec) +
7590 * MAC header time (FC + DUR + A1 + A2 + A3 + SEQ == 24 bytes at beacon rate)
7592 bcntsfoff += phydelay ? D11B_PHY_TX_DELAY : 0;
7594 short_preamble ? D11B_PHY_SPREHDR_TIME :
7595 D11B_PHY_LPREHDR_TIME;
7596 bcntsfoff += wlc_compute_airtime(wlc, rspec, DOT11_MAC_HDR_LEN);
7598 return (u16) (bcntsfoff);
7601 /* Max buffering needed for beacon template/prb resp template is 142 bytes.
7603 * PLCP header is 6 bytes.
7604 * 802.11 A3 header is 24 bytes.
7605 * Max beacon frame body template length is 112 bytes.
7606 * Max probe resp frame body template length is 110 bytes.
7608 * *len on input contains the max length of the packet available.
7610 * The *len value is set to the number of bytes in buf used, and starts with the PLCP
7611 * and included up to, but not including, the 4 byte FCS.
7614 wlc_bcn_prb_template(struct wlc_info *wlc, uint type, ratespec_t bcn_rspec,
7615 wlc_bsscfg_t *cfg, u16 *buf, int *len)
7617 cck_phy_hdr_t *plcp;
7618 struct dot11_management_header *h;
7619 int hdr_len, body_len;
7621 ASSERT(*len >= 142);
7622 ASSERT(type == FC_BEACON || type == FC_PROBE_RESP);
7624 if (MBSS_BCN_ENAB(cfg) && type == FC_BEACON)
7625 hdr_len = DOT11_MAC_HDR_LEN;
7627 hdr_len = D11_PHY_HDR_LEN + DOT11_MAC_HDR_LEN;
7628 body_len = *len - hdr_len; /* calc buffer size provided for frame body */
7630 *len = hdr_len + body_len; /* return actual size */
7632 /* format PHY and MAC headers */
7633 memset((char *)buf, 0, hdr_len);
7635 plcp = (cck_phy_hdr_t *) buf;
7637 /* PLCP for Probe Response frames are filled in from core's rate table */
7638 if (type == FC_BEACON && !MBSS_BCN_ENAB(cfg)) {
7640 wlc_compute_plcp(wlc, bcn_rspec,
7641 (DOT11_MAC_HDR_LEN + body_len + DOT11_FCS_LEN),
7645 /* "Regular" and 16 MBSS but not for 4 MBSS */
7646 /* Update the phytxctl for the beacon based on the rspec */
7647 if (!SOFTBCN_ENAB(cfg))
7648 wlc_beacon_phytxctl_txant_upd(wlc, bcn_rspec);
7650 if (MBSS_BCN_ENAB(cfg) && type == FC_BEACON)
7651 h = (struct dot11_management_header *)&plcp[0];
7653 h = (struct dot11_management_header *)&plcp[1];
7655 /* fill in 802.11 header */
7656 h->fc = htol16((u16) type);
7658 /* DUR is 0 for multicast bcn, or filled in by MAC for prb resp */
7659 /* A1 filled in by MAC for prb resp, broadcast for bcn */
7660 if (type == FC_BEACON)
7661 bcopy((const char *)ðer_bcast, (char *)&h->da,
7663 bcopy((char *)&cfg->cur_etheraddr, (char *)&h->sa, ETH_ALEN);
7664 bcopy((char *)&cfg->BSSID, (char *)&h->bssid, ETH_ALEN);
7666 /* SEQ filled in by MAC */
7671 int wlc_get_header_len()
7676 /* Update a beacon for a particular BSS
7677 * For MBSS, this updates the software template and sets "latest" to the index of the
7679 * Otherwise, it updates the hardware template.
7681 void wlc_bss_update_beacon(struct wlc_info *wlc, wlc_bsscfg_t *cfg)
7683 int len = BCN_TMPL_LEN;
7685 /* Clear the soft intmask */
7686 wlc->defmacintmask &= ~MI_BCNTPL;
7688 if (!cfg->up) { /* Only allow updates on an UP bss */
7692 if (MBSS_BCN_ENAB(cfg)) { /* Optimize: Some of if/else could be combined */
7693 } else if (HWBCN_ENAB(cfg)) { /* Hardware beaconing for this config */
7694 u16 bcn[BCN_TMPL_LEN / 2];
7695 u32 both_valid = MCMD_BCN0VLD | MCMD_BCN1VLD;
7696 d11regs_t *regs = wlc->regs;
7697 struct osl_info *osh = NULL;
7701 /* Check if both templates are in use, if so sched. an interrupt
7702 * that will call back into this routine
7704 if ((R_REG(osh, ®s->maccommand) & both_valid) == both_valid) {
7705 /* clear any previous status */
7706 W_REG(osh, ®s->macintstatus, MI_BCNTPL);
7708 /* Check that after scheduling the interrupt both of the
7709 * templates are still busy. if not clear the int. & remask
7711 if ((R_REG(osh, ®s->maccommand) & both_valid) == both_valid) {
7712 wlc->defmacintmask |= MI_BCNTPL;
7717 wlc_lowest_basic_rspec(wlc, &cfg->current_bss->rateset);
7718 ASSERT(wlc_valid_rate
7719 (wlc, wlc->bcn_rspec,
7720 CHSPEC_IS2G(cfg->current_bss->
7721 chanspec) ? WLC_BAND_2G : WLC_BAND_5G,
7724 /* update the template and ucode shm */
7725 wlc_bcn_prb_template(wlc, FC_BEACON, wlc->bcn_rspec, cfg, bcn,
7727 wlc_write_hw_bcntemplates(wlc, bcn, len, false);
7732 * Update all beacons for the system.
7734 void wlc_update_beacon(struct wlc_info *wlc)
7737 wlc_bsscfg_t *bsscfg;
7739 /* update AP or IBSS beacons */
7740 FOREACH_BSS(wlc, idx, bsscfg) {
7741 if (bsscfg->up && (BSSCFG_AP(bsscfg) || !bsscfg->BSS))
7742 wlc_bss_update_beacon(wlc, bsscfg);
7746 /* Write ssid into shared memory */
7747 void wlc_shm_ssid_upd(struct wlc_info *wlc, wlc_bsscfg_t *cfg)
7749 u8 *ssidptr = cfg->SSID;
7751 u8 ssidbuf[DOT11_MAX_SSID_LEN];
7753 /* padding the ssid with zero and copy it into shm */
7754 memset(ssidbuf, 0, DOT11_MAX_SSID_LEN);
7755 bcopy(ssidptr, ssidbuf, cfg->SSID_len);
7757 wlc_copyto_shm(wlc, base, ssidbuf, DOT11_MAX_SSID_LEN);
7759 if (!MBSS_BCN_ENAB(cfg))
7760 wlc_write_shm(wlc, M_SSIDLEN, (u16) cfg->SSID_len);
7763 void wlc_update_probe_resp(struct wlc_info *wlc, bool suspend)
7766 wlc_bsscfg_t *bsscfg;
7768 /* update AP or IBSS probe responses */
7769 FOREACH_BSS(wlc, idx, bsscfg) {
7770 if (bsscfg->up && (BSSCFG_AP(bsscfg) || !bsscfg->BSS))
7771 wlc_bss_update_probe_resp(wlc, bsscfg, suspend);
7776 wlc_bss_update_probe_resp(struct wlc_info *wlc, wlc_bsscfg_t *cfg, bool suspend)
7778 u16 prb_resp[BCN_TMPL_LEN / 2];
7779 int len = BCN_TMPL_LEN;
7781 /* write the probe response to hardware, or save in the config structure */
7782 if (!MBSS_PRB_ENAB(cfg)) {
7784 /* create the probe response template */
7785 wlc_bcn_prb_template(wlc, FC_PROBE_RESP, 0, cfg, prb_resp,
7789 wlc_suspend_mac_and_wait(wlc);
7791 /* write the probe response into the template region */
7792 wlc_bmac_write_template_ram(wlc->hw, T_PRS_TPL_BASE,
7793 (len + 3) & ~3, prb_resp);
7795 /* write the length of the probe response frame (+PLCP/-FCS) */
7796 wlc_write_shm(wlc, M_PRB_RESP_FRM_LEN, (u16) len);
7798 /* write the SSID and SSID length */
7799 wlc_shm_ssid_upd(wlc, cfg);
7802 * Write PLCP headers and durations for probe response frames at all rates.
7803 * Use the actual frame length covered by the PLCP header for the call to
7804 * wlc_mod_prb_rsp_rate_table() by subtracting the PLCP len and adding the FCS.
7806 len += (-D11_PHY_HDR_LEN + DOT11_FCS_LEN);
7807 wlc_mod_prb_rsp_rate_table(wlc, (u16) len);
7810 wlc_enable_mac(wlc);
7811 } else { /* Generating probe resp in sw; update local template */
7812 ASSERT(0 && "No software probe response support without MBSS");
7816 /* prepares pdu for transmission. returns BCM error codes */
7817 int wlc_prep_pdu(struct wlc_info *wlc, struct sk_buff *pdu, uint *fifop)
7819 struct osl_info *osh;
7822 struct dot11_header *h;
7829 txh = (d11txh_t *) (pdu->data);
7831 h = (struct dot11_header *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
7835 /* get the pkt queue info. This was put at wlc_sendctl or wlc_send for PDU */
7836 fifo = ltoh16(txh->TxFrameID) & TXFID_QUEUE_MASK;
7842 /* return if insufficient dma resources */
7843 if (TXAVAIL(wlc, fifo) < MAX_DMA_SEGS) {
7844 /* Mark precedences related to this FIFO, unsendable */
7845 WLC_TX_FIFO_CLEAR(wlc, fifo);
7849 if (FC_TYPE(ltoh16(txh->MacFrameControl)) != FC_TYPE_DATA)
7850 WLCNTINCR(wlc->pub->_cnt->txctl);
7855 /* init tx reported rate mechanism */
7856 void wlc_reprate_init(struct wlc_info *wlc)
7859 wlc_bsscfg_t *bsscfg;
7861 FOREACH_BSS(wlc, i, bsscfg) {
7862 wlc_bsscfg_reprate_init(bsscfg);
7866 /* per bsscfg init tx reported rate mechanism */
7867 void wlc_bsscfg_reprate_init(wlc_bsscfg_t *bsscfg)
7869 bsscfg->txrspecidx = 0;
7870 memset((char *)bsscfg->txrspec, 0, sizeof(bsscfg->txrspec));
7873 /* Retrieve a consolidated set of revision information,
7874 * typically for the WLC_GET_REVINFO ioctl
7876 int wlc_get_revision_info(struct wlc_info *wlc, void *buf, uint len)
7878 wlc_rev_info_t *rinfo = (wlc_rev_info_t *) buf;
7880 if (len < WL_REV_INFO_LEGACY_LENGTH)
7881 return BCME_BUFTOOSHORT;
7883 rinfo->vendorid = wlc->vendorid;
7884 rinfo->deviceid = wlc->deviceid;
7885 rinfo->radiorev = (wlc->band->radiorev << IDCODE_REV_SHIFT) |
7886 (wlc->band->radioid << IDCODE_ID_SHIFT);
7887 rinfo->chiprev = wlc->pub->sih->chiprev;
7888 rinfo->corerev = wlc->pub->corerev;
7889 rinfo->boardid = wlc->pub->sih->boardtype;
7890 rinfo->boardvendor = wlc->pub->sih->boardvendor;
7891 rinfo->boardrev = wlc->pub->boardrev;
7892 rinfo->ucoderev = wlc->ucode_rev;
7893 rinfo->driverrev = EPI_VERSION_NUM;
7894 rinfo->bus = wlc->pub->sih->bustype;
7895 rinfo->chipnum = wlc->pub->sih->chip;
7897 if (len >= (offsetof(wlc_rev_info_t, chippkg))) {
7898 rinfo->phytype = wlc->band->phytype;
7899 rinfo->phyrev = wlc->band->phyrev;
7900 rinfo->anarev = 0; /* obsolete stuff, suppress */
7903 if (len >= sizeof(*rinfo)) {
7904 rinfo->chippkg = wlc->pub->sih->chippkg;
7910 void wlc_default_rateset(struct wlc_info *wlc, wlc_rateset_t *rs)
7912 wlc_rateset_default(rs, NULL, wlc->band->phytype, wlc->band->bandtype,
7913 false, RATE_MASK_FULL, (bool) N_ENAB(wlc->pub),
7914 CHSPEC_WLC_BW(wlc->default_bss->chanspec),
7915 wlc->stf->txstreams);
7918 static void wlc_bss_default_init(struct wlc_info *wlc)
7920 chanspec_t chanspec;
7921 struct wlcband *band;
7922 wlc_bss_info_t *bi = wlc->default_bss;
7924 /* init default and target BSS with some sane initial values */
7925 memset((char *)(bi), 0, sizeof(wlc_bss_info_t));
7926 bi->beacon_period = ISSIM_ENAB(wlc->pub->sih) ? BEACON_INTERVAL_DEF_QT :
7927 BEACON_INTERVAL_DEFAULT;
7928 bi->dtim_period = ISSIM_ENAB(wlc->pub->sih) ? DTIM_INTERVAL_DEF_QT :
7929 DTIM_INTERVAL_DEFAULT;
7931 /* fill the default channel as the first valid channel
7932 * starting from the 2G channels
7934 chanspec = CH20MHZ_CHSPEC(1);
7935 ASSERT(chanspec != INVCHANSPEC);
7937 wlc->home_chanspec = bi->chanspec = chanspec;
7939 /* find the band of our default channel */
7941 if (NBANDS(wlc) > 1 && band->bandunit != CHSPEC_WLCBANDUNIT(chanspec))
7942 band = wlc->bandstate[OTHERBANDUNIT(wlc)];
7944 /* init bss rates to the band specific default rate set */
7945 wlc_rateset_default(&bi->rateset, NULL, band->phytype, band->bandtype,
7946 false, RATE_MASK_FULL, (bool) N_ENAB(wlc->pub),
7947 CHSPEC_WLC_BW(chanspec), wlc->stf->txstreams);
7949 if (N_ENAB(wlc->pub))
7950 bi->flags |= WLC_BSS_HT;
7953 /* Deferred event processing */
7954 static void wlc_process_eventq(void *arg)
7956 struct wlc_info *wlc = (struct wlc_info *) arg;
7959 while ((etmp = wlc_eventq_deq(wlc->eventq))) {
7960 /* Perform OS specific event processing */
7961 wl_event(wlc->wl, etmp->event.ifname, etmp);
7966 wlc_event_free(wlc->eventq, etmp);
7971 wlc_uint64_sub(u32 *a_high, u32 *a_low, u32 b_high, u32 b_low)
7973 if (b_low > *a_low) {
7974 /* low half needs a carry */
7982 mac80211_wlc_set_nrate(struct wlc_info *wlc, struct wlcband *cur_band,
7985 u8 stf = (int_val & NRATE_STF_MASK) >> NRATE_STF_SHIFT;
7986 u8 rate = int_val & NRATE_RATE_MASK;
7988 bool ismcs = ((int_val & NRATE_MCS_INUSE) == NRATE_MCS_INUSE);
7989 bool issgi = ((int_val & NRATE_SGI_MASK) >> NRATE_SGI_SHIFT);
7990 bool override_mcs_only = ((int_val & NRATE_OVERRIDE_MCS_ONLY)
7991 == NRATE_OVERRIDE_MCS_ONLY);
7995 return (ratespec_t) rate;
7998 /* validate the combination of rate/mcs/stf is allowed */
7999 if (N_ENAB(wlc->pub) && ismcs) {
8000 /* mcs only allowed when nmode */
8001 if (stf > PHY_TXC1_MODE_SDM) {
8002 WL_ERROR("wl%d: %s: Invalid stf\n",
8003 WLCWLUNIT(wlc), __func__);
8004 bcmerror = BCME_RANGE;
8008 /* mcs 32 is a special case, DUP mode 40 only */
8010 if (!CHSPEC_IS40(wlc->home_chanspec) ||
8011 ((stf != PHY_TXC1_MODE_SISO)
8012 && (stf != PHY_TXC1_MODE_CDD))) {
8013 WL_ERROR("wl%d: %s: Invalid mcs 32\n",
8014 WLCWLUNIT(wlc), __func__);
8015 bcmerror = BCME_RANGE;
8018 /* mcs > 7 must use stf SDM */
8019 } else if (rate > HIGHEST_SINGLE_STREAM_MCS) {
8020 /* mcs > 7 must use stf SDM */
8021 if (stf != PHY_TXC1_MODE_SDM) {
8022 WL_TRACE("wl%d: %s: enabling SDM mode for mcs %d\n",
8023 WLCWLUNIT(wlc), __func__, rate);
8024 stf = PHY_TXC1_MODE_SDM;
8027 /* MCS 0-7 may use SISO, CDD, and for phy_rev >= 3 STBC */
8028 if ((stf > PHY_TXC1_MODE_STBC) ||
8029 (!WLC_STBC_CAP_PHY(wlc)
8030 && (stf == PHY_TXC1_MODE_STBC))) {
8031 WL_ERROR("wl%d: %s: Invalid STBC\n",
8032 WLCWLUNIT(wlc), __func__);
8033 bcmerror = BCME_RANGE;
8037 } else if (IS_OFDM(rate)) {
8038 if ((stf != PHY_TXC1_MODE_CDD) && (stf != PHY_TXC1_MODE_SISO)) {
8039 WL_ERROR("wl%d: %s: Invalid OFDM\n",
8040 WLCWLUNIT(wlc), __func__);
8041 bcmerror = BCME_RANGE;
8044 } else if (IS_CCK(rate)) {
8045 if ((cur_band->bandtype != WLC_BAND_2G)
8046 || (stf != PHY_TXC1_MODE_SISO)) {
8047 WL_ERROR("wl%d: %s: Invalid CCK\n",
8048 WLCWLUNIT(wlc), __func__);
8049 bcmerror = BCME_RANGE;
8053 WL_ERROR("wl%d: %s: Unknown rate type\n",
8054 WLCWLUNIT(wlc), __func__);
8055 bcmerror = BCME_RANGE;
8058 /* make sure multiple antennae are available for non-siso rates */
8059 if ((stf != PHY_TXC1_MODE_SISO) && (wlc->stf->txstreams == 1)) {
8060 WL_ERROR("wl%d: %s: SISO antenna but !SISO request\n",
8061 WLCWLUNIT(wlc), __func__);
8062 bcmerror = BCME_RANGE;
8068 rspec |= RSPEC_MIMORATE;
8069 /* For STBC populate the STC field of the ratespec */
8070 if (stf == PHY_TXC1_MODE_STBC) {
8072 stc = 1; /* Nss for single stream is always 1 */
8073 rspec |= (stc << RSPEC_STC_SHIFT);
8077 rspec |= (stf << RSPEC_STF_SHIFT);
8079 if (override_mcs_only)
8080 rspec |= RSPEC_OVERRIDE_MCS_ONLY;
8083 rspec |= RSPEC_SHORT_GI;
8086 && !wlc_valid_rate(wlc, rspec, cur_band->bandtype, true)) {
8092 WL_ERROR("Hoark\n");
8096 /* formula: IDLE_BUSY_RATIO_X_16 = (100-duty_cycle)/duty_cycle*16 */
8098 wlc_duty_cycle_set(struct wlc_info *wlc, int duty_cycle, bool isOFDM,
8101 int idle_busy_ratio_x_16 = 0;
8103 isOFDM ? M_TX_IDLE_BUSY_RATIO_X_16_OFDM :
8104 M_TX_IDLE_BUSY_RATIO_X_16_CCK;
8105 if (duty_cycle > 100 || duty_cycle < 0) {
8106 WL_ERROR("wl%d: duty cycle value off limit\n", wlc->pub->unit);
8110 idle_busy_ratio_x_16 = (100 - duty_cycle) * 16 / duty_cycle;
8111 /* Only write to shared memory when wl is up */
8113 wlc_write_shm(wlc, offset, (u16) idle_busy_ratio_x_16);
8116 wlc->tx_duty_cycle_ofdm = (u16) duty_cycle;
8118 wlc->tx_duty_cycle_cck = (u16) duty_cycle;
8123 /* Read a single u16 from shared memory.
8124 * SHM 'offset' needs to be an even address
8126 u16 wlc_read_shm(struct wlc_info *wlc, uint offset)
8128 return wlc_bmac_read_shm(wlc->hw, offset);
8131 /* Write a single u16 to shared memory.
8132 * SHM 'offset' needs to be an even address
8134 void wlc_write_shm(struct wlc_info *wlc, uint offset, u16 v)
8136 wlc_bmac_write_shm(wlc->hw, offset, v);
8139 /* Set a range of shared memory to a value.
8140 * SHM 'offset' needs to be an even address and
8141 * Range length 'len' must be an even number of bytes
8143 void wlc_set_shm(struct wlc_info *wlc, uint offset, u16 v, int len)
8145 /* offset and len need to be even */
8146 ASSERT((offset & 1) == 0);
8147 ASSERT((len & 1) == 0);
8152 wlc_bmac_set_shm(wlc->hw, offset, v, len);
8155 /* Copy a buffer to shared memory.
8156 * SHM 'offset' needs to be an even address and
8157 * Buffer length 'len' must be an even number of bytes
8159 void wlc_copyto_shm(struct wlc_info *wlc, uint offset, const void *buf, int len)
8161 /* offset and len need to be even */
8162 ASSERT((offset & 1) == 0);
8163 ASSERT((len & 1) == 0);
8167 wlc_bmac_copyto_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
8171 /* Copy from shared memory to a buffer.
8172 * SHM 'offset' needs to be an even address and
8173 * Buffer length 'len' must be an even number of bytes
8175 void wlc_copyfrom_shm(struct wlc_info *wlc, uint offset, void *buf, int len)
8177 /* offset and len need to be even */
8178 ASSERT((offset & 1) == 0);
8179 ASSERT((len & 1) == 0);
8184 wlc_bmac_copyfrom_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
8187 /* wrapper BMAC functions to for HIGH driver access */
8188 void wlc_mctrl(struct wlc_info *wlc, u32 mask, u32 val)
8190 wlc_bmac_mctrl(wlc->hw, mask, val);
8193 void wlc_corereset(struct wlc_info *wlc, u32 flags)
8195 wlc_bmac_corereset(wlc->hw, flags);
8198 void wlc_mhf(struct wlc_info *wlc, u8 idx, u16 mask, u16 val, int bands)
8200 wlc_bmac_mhf(wlc->hw, idx, mask, val, bands);
8203 u16 wlc_mhf_get(struct wlc_info *wlc, u8 idx, int bands)
8205 return wlc_bmac_mhf_get(wlc->hw, idx, bands);
8208 int wlc_xmtfifo_sz_get(struct wlc_info *wlc, uint fifo, uint *blocks)
8210 return wlc_bmac_xmtfifo_sz_get(wlc->hw, fifo, blocks);
8213 void wlc_write_template_ram(struct wlc_info *wlc, int offset, int len,
8216 wlc_bmac_write_template_ram(wlc->hw, offset, len, buf);
8219 void wlc_write_hw_bcntemplates(struct wlc_info *wlc, void *bcn, int len,
8222 wlc_bmac_write_hw_bcntemplates(wlc->hw, bcn, len, both);
8226 wlc_set_addrmatch(struct wlc_info *wlc, int match_reg_offset,
8227 const struct ether_addr *addr)
8229 wlc_bmac_set_addrmatch(wlc->hw, match_reg_offset, addr);
8232 void wlc_set_rcmta(struct wlc_info *wlc, int idx, const struct ether_addr *addr)
8234 wlc_bmac_set_rcmta(wlc->hw, idx, addr);
8237 void wlc_read_tsf(struct wlc_info *wlc, u32 *tsf_l_ptr, u32 *tsf_h_ptr)
8239 wlc_bmac_read_tsf(wlc->hw, tsf_l_ptr, tsf_h_ptr);
8242 void wlc_set_cwmin(struct wlc_info *wlc, u16 newmin)
8244 wlc->band->CWmin = newmin;
8245 wlc_bmac_set_cwmin(wlc->hw, newmin);
8248 void wlc_set_cwmax(struct wlc_info *wlc, u16 newmax)
8250 wlc->band->CWmax = newmax;
8251 wlc_bmac_set_cwmax(wlc->hw, newmax);
8254 void wlc_fifoerrors(struct wlc_info *wlc)
8257 wlc_bmac_fifoerrors(wlc->hw);
8260 /* Search mem rw utilities */
8262 void wlc_pllreq(struct wlc_info *wlc, bool set, mbool req_bit)
8264 wlc_bmac_pllreq(wlc->hw, set, req_bit);
8267 void wlc_reset_bmac_done(struct wlc_info *wlc)
8271 void wlc_ht_mimops_cap_update(struct wlc_info *wlc, u8 mimops_mode)
8273 wlc->ht_cap.cap &= ~HT_CAP_MIMO_PS_MASK;
8274 wlc->ht_cap.cap |= (mimops_mode << HT_CAP_MIMO_PS_SHIFT);
8276 if (AP_ENAB(wlc->pub) && wlc->clk) {
8277 wlc_update_beacon(wlc);
8278 wlc_update_probe_resp(wlc, true);
8282 /* check for the particular priority flow control bit being set */
8284 wlc_txflowcontrol_prio_isset(struct wlc_info *wlc, wlc_txq_info_t *q, int prio)
8288 if (prio == ALLPRIO) {
8289 prio_mask = TXQ_STOP_FOR_PRIOFC_MASK;
8291 ASSERT(prio >= 0 && prio <= MAXPRIO);
8292 prio_mask = NBITVAL(prio);
8295 return (q->stopped & prio_mask) == prio_mask;
8298 /* propogate the flow control to all interfaces using the given tx queue */
8299 void wlc_txflowcontrol(struct wlc_info *wlc, wlc_txq_info_t *qi,
8305 WL_ERROR("%s: flow control kicks in\n", __func__);
8307 if (prio == ALLPRIO) {
8308 prio_bits = TXQ_STOP_FOR_PRIOFC_MASK;
8310 ASSERT(prio >= 0 && prio <= MAXPRIO);
8311 prio_bits = NBITVAL(prio);
8314 cur_bits = qi->stopped & prio_bits;
8316 /* Check for the case of no change and return early
8317 * Otherwise update the bit and continue
8320 if (cur_bits == prio_bits) {
8323 mboolset(qi->stopped, prio_bits);
8325 if (cur_bits == 0) {
8328 mboolclr(qi->stopped, prio_bits);
8331 /* If there is a flow control override we will not change the external
8332 * flow control state.
8334 if (qi->stopped & ~TXQ_STOP_FOR_PRIOFC_MASK) {
8338 wlc_txflowcontrol_signal(wlc, qi, on, prio);
8342 wlc_txflowcontrol_override(struct wlc_info *wlc, wlc_txq_info_t *qi, bool on,
8347 ASSERT(override != 0);
8348 ASSERT((override & TXQ_STOP_FOR_PRIOFC_MASK) == 0);
8350 prev_override = (qi->stopped & ~TXQ_STOP_FOR_PRIOFC_MASK);
8352 /* Update the flow control bits and do an early return if there is
8353 * no change in the external flow control state.
8356 mboolset(qi->stopped, override);
8357 /* if there was a previous override bit on, then setting this
8358 * makes no difference.
8360 if (prev_override) {
8364 wlc_txflowcontrol_signal(wlc, qi, ON, ALLPRIO);
8366 mboolclr(qi->stopped, override);
8367 /* clearing an override bit will only make a difference for
8368 * flow control if it was the only bit set. For any other
8369 * override setting, just return
8371 if (prev_override != override) {
8375 if (qi->stopped == 0) {
8376 wlc_txflowcontrol_signal(wlc, qi, OFF, ALLPRIO);
8380 for (prio = MAXPRIO; prio >= 0; prio--) {
8381 if (!mboolisset(qi->stopped, NBITVAL(prio)))
8382 wlc_txflowcontrol_signal(wlc, qi, OFF,
8389 static void wlc_txflowcontrol_reset(struct wlc_info *wlc)
8393 for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
8395 wlc_txflowcontrol_signal(wlc, qi, OFF, ALLPRIO);
8402 wlc_txflowcontrol_signal(struct wlc_info *wlc, wlc_txq_info_t *qi, bool on,
8405 struct wlc_if *wlcif;
8407 for (wlcif = wlc->wlcif_list; wlcif != NULL; wlcif = wlcif->next) {
8408 if (wlcif->qi == qi && wlcif->flags & WLC_IF_LINKED)
8409 wl_txflowcontrol(wlc->wl, wlcif->wlif, on, prio);
8413 static wlc_txq_info_t *wlc_txq_alloc(struct wlc_info *wlc, struct osl_info *osh)
8415 wlc_txq_info_t *qi, *p;
8417 qi = (wlc_txq_info_t *) wlc_calloc(osh, wlc->pub->unit,
8418 sizeof(wlc_txq_info_t));
8423 /* Have enough room for control packets along with HI watermark */
8424 /* Also, add room to txq for total psq packets if all the SCBs leave PS mode */
8425 /* The watermark for flowcontrol to OS packets will remain the same */
8426 pktq_init(&qi->q, WLC_PREC_COUNT,
8427 (2 * wlc->pub->tunables->datahiwat) + PKTQ_LEN_DEFAULT +
8428 wlc->pub->psq_pkts_total);
8430 /* add this queue to the the global list */
8433 wlc->tx_queues = qi;
8435 while (p->next != NULL)
8443 static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh,
8451 /* remove the queue from the linked list */
8454 wlc->tx_queues = p->next;
8456 while (p != NULL && p->next != qi)
8458 ASSERT(p->next == qi);
8460 p->next = p->next->next;