--- /dev/null
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <linux/etherdevice.h>
+#include <bcmdefs.h>
+#include <bcmdevs.h>
+#include <wlc_cfg.h>
+#include <osl.h>
+#include <bcmutils.h>
+#include <bcmwifi.h>
+#include <siutils.h>
+#include <bcmendian.h>
+#include <proto/wpa.h>
+#include <pcicfg.h>
+#include <bcmsrom.h>
+#include <wlioctl.h>
+#include <sbhndpio.h>
+#include <sbhnddma.h>
+#include <hnddma.h>
+#include <hndpmu.h>
+#include <d11.h>
+#include <wlc_rate.h>
+#include <wlc_pub.h>
+#include <wlc_key.h>
+#include <wlc_bsscfg.h>
+#include <wlc_channel.h>
+#include <wlc_event.h>
+#include <wlc_mac80211.h>
+#include <wlc_bmac.h>
+#include <wlc_scb.h>
+#include <wlc_phy_hal.h>
+#include <wlc_phy_shim.h>
+#include <wlc_antsel.h>
+#include <wlc_stf.h>
+#include <wlc_ampdu.h>
+#include <wlc_event.h>
+#include <wl_export.h>
+#include "d11ucode_ext.h"
+#include <wlc_alloc.h>
+#include <net/mac80211.h>
+#include <wl_dbg.h>
+
+
+/*
+ * buffer length needed for wlc_format_ssid
+ * 32 SSID chars, max of 4 chars for each SSID char "\xFF", plus NULL.
+ */
+#define SSID_FMT_BUF_LEN ((4 * DOT11_MAX_SSID_LEN) + 1)
+
+#define TIMER_INTERVAL_WATCHDOG 1000 /* watchdog timer, in unit of ms */
+#define TIMER_INTERVAL_RADIOCHK 800 /* radio monitor timer, in unit of ms */
+
+#ifndef WLC_MPC_MAX_DELAYCNT
+#define WLC_MPC_MAX_DELAYCNT 10 /* Max MPC timeout, in unit of watchdog */
+#endif
+#define WLC_MPC_MIN_DELAYCNT 1 /* Min MPC timeout, in unit of watchdog */
+#define WLC_MPC_THRESHOLD 3 /* MPC count threshold level */
+
+#define BEACON_INTERVAL_DEFAULT 100 /* beacon interval, in unit of 1024TU */
+#define DTIM_INTERVAL_DEFAULT 3 /* DTIM interval, in unit of beacon interval */
+
+/* Scale down delays to accommodate QT slow speed */
+#define BEACON_INTERVAL_DEF_QT 20 /* beacon interval, in unit of 1024TU */
+#define DTIM_INTERVAL_DEF_QT 1 /* DTIM interval, in unit of beacon interval */
+
+#define TBTT_ALIGN_LEEWAY_US 100 /* min leeway before first TBTT in us */
+
+/*
+ * driver maintains internal 'tick'(wlc->pub->now) which increments in 1s OS timer(soft
+ * watchdog) it is not a wall clock and won't increment when driver is in "down" state
+ * this low resolution driver tick can be used for maintenance tasks such as phy
+ * calibration and scb update
+ */
+
+/* watchdog trigger mode: OSL timer or TBTT */
+#define WLC_WATCHDOG_TBTT(wlc) \
+ (wlc->stas_associated > 0 && wlc->PM != PM_OFF && wlc->pub->align_wd_tbtt)
+
+/* To inform the ucode of the last mcast frame posted so that it can clear moredata bit */
+#define BCMCFID(wlc, fid) wlc_bmac_write_shm((wlc)->hw, M_BCMC_FID, (fid))
+
+#define WLC_WAR16165(wlc) (wlc->pub->sih->bustype == PCI_BUS && \
+ (!AP_ENAB(wlc->pub)) && (wlc->war16165))
+
+/* debug/trace */
+uint wl_msg_level =
+#if defined(BCMDBG)
+ WL_ERROR_VAL;
+#else
+ 0;
+#endif /* BCMDBG */
+
+/* Find basic rate for a given rate */
+#define WLC_BASIC_RATE(wlc, rspec) (IS_MCS(rspec) ? \
+ (wlc)->band->basic_rate[mcs_table[rspec & RSPEC_RATE_MASK].leg_ofdm] : \
+ (wlc)->band->basic_rate[rspec & RSPEC_RATE_MASK])
+
+#define FRAMETYPE(r, mimoframe) (IS_MCS(r) ? mimoframe : (IS_CCK(r) ? FT_CCK : FT_OFDM))
+
+#define RFDISABLE_DEFAULT 10000000 /* rfdisable delay timer 500 ms, runs of ALP clock */
+
+#define WLC_TEMPSENSE_PERIOD 10 /* 10 second timeout */
+
+#define SCAN_IN_PROGRESS(x) 0
+
+#define EPI_VERSION_NUM 0x054b0b00
+
+#ifdef BCMDBG
+/* pointer to most recently allocated wl/wlc */
+static struct wlc_info *wlc_info_dbg = (struct wlc_info *) (NULL);
+#endif
+
+/* IOVar table */
+
+/* Parameter IDs, for use only internally to wlc -- in the wlc_iovars
+ * table and by the wlc_doiovar() function. No ordering is imposed:
+ * the table is keyed by name, and the function uses a switch.
+ */
+enum {
+ IOV_MPC = 1,
+ IOV_QTXPOWER,
+ IOV_BCN_LI_BCN, /* Beacon listen interval in # of beacons */
+ IOV_LAST /* In case of a need to check max ID number */
+};
+
+const bcm_iovar_t wlc_iovars[] = {
+ {"mpc", IOV_MPC, (IOVF_OPEN_ALLOW), IOVT_BOOL, 0},
+ {"qtxpower", IOV_QTXPOWER, (IOVF_WHL | IOVF_OPEN_ALLOW), IOVT_UINT32,
+ 0},
+ {"bcn_li_bcn", IOV_BCN_LI_BCN, 0, IOVT_UINT8, 0},
+ {NULL, 0, 0, 0, 0}
+};
+
+const u8 prio2fifo[NUMPRIO] = {
+ TX_AC_BE_FIFO, /* 0 BE AC_BE Best Effort */
+ TX_AC_BK_FIFO, /* 1 BK AC_BK Background */
+ TX_AC_BK_FIFO, /* 2 -- AC_BK Background */
+ TX_AC_BE_FIFO, /* 3 EE AC_BE Best Effort */
+ TX_AC_VI_FIFO, /* 4 CL AC_VI Video */
+ TX_AC_VI_FIFO, /* 5 VI AC_VI Video */
+ TX_AC_VO_FIFO, /* 6 VO AC_VO Voice */
+ TX_AC_VO_FIFO /* 7 NC AC_VO Voice */
+};
+
+/* precedences numbers for wlc queues. These are twice as may levels as
+ * 802.1D priorities.
+ * Odd numbers are used for HI priority traffic at same precedence levels
+ * These constants are used ONLY by wlc_prio2prec_map. Do not use them elsewhere.
+ */
+#define _WLC_PREC_NONE 0 /* None = - */
+#define _WLC_PREC_BK 2 /* BK - Background */
+#define _WLC_PREC_BE 4 /* BE - Best-effort */
+#define _WLC_PREC_EE 6 /* EE - Excellent-effort */
+#define _WLC_PREC_CL 8 /* CL - Controlled Load */
+#define _WLC_PREC_VI 10 /* Vi - Video */
+#define _WLC_PREC_VO 12 /* Vo - Voice */
+#define _WLC_PREC_NC 14 /* NC - Network Control */
+
+/* 802.1D Priority to precedence queue mapping */
+const u8 wlc_prio2prec_map[] = {
+ _WLC_PREC_BE, /* 0 BE - Best-effort */
+ _WLC_PREC_BK, /* 1 BK - Background */
+ _WLC_PREC_NONE, /* 2 None = - */
+ _WLC_PREC_EE, /* 3 EE - Excellent-effort */
+ _WLC_PREC_CL, /* 4 CL - Controlled Load */
+ _WLC_PREC_VI, /* 5 Vi - Video */
+ _WLC_PREC_VO, /* 6 Vo - Voice */
+ _WLC_PREC_NC, /* 7 NC - Network Control */
+};
+
+/* Sanity check for tx_prec_map and fifo synchup
+ * Either there are some packets pending for the fifo, else if fifo is empty then
+ * all the corresponding precmap bits should be set
+ */
+#define WLC_TX_FIFO_CHECK(wlc, fifo) (TXPKTPENDGET((wlc), (fifo)) || \
+ (TXPKTPENDGET((wlc), (fifo)) == 0 && \
+ ((wlc)->tx_prec_map & (wlc)->fifo2prec_map[(fifo)]) == \
+ (wlc)->fifo2prec_map[(fifo)]))
+
+/* TX FIFO number to WME/802.1E Access Category */
+const u8 wme_fifo2ac[] = { AC_BK, AC_BE, AC_VI, AC_VO, AC_BE, AC_BE };
+
+/* WME/802.1E Access Category to TX FIFO number */
+static const u8 wme_ac2fifo[] = { 1, 0, 2, 3 };
+
+static bool in_send_q = false;
+
+/* Shared memory location index for various AC params */
+#define wme_shmemacindex(ac) wme_ac2fifo[ac]
+
+#ifdef BCMDBG
+static const char *fifo_names[] = {
+ "AC_BK", "AC_BE", "AC_VI", "AC_VO", "BCMC", "ATIM" };
+const char *aci_names[] = { "AC_BE", "AC_BK", "AC_VI", "AC_VO" };
+#endif
+
+static const u8 acbitmap2maxprio[] = {
+ PRIO_8021D_BE, PRIO_8021D_BE, PRIO_8021D_BK, PRIO_8021D_BK,
+ PRIO_8021D_VI, PRIO_8021D_VI, PRIO_8021D_VI, PRIO_8021D_VI,
+ PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO,
+ PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO, PRIO_8021D_VO
+};
+
+/* currently the best mechanism for determining SIFS is the band in use */
+#define SIFS(band) ((band)->bandtype == WLC_BAND_5G ? APHY_SIFS_TIME : BPHY_SIFS_TIME);
+
+/* value for # replay counters currently supported */
+#define WLC_REPLAY_CNTRS_VALUE WPA_CAP_16_REPLAY_CNTRS
+
+/* local prototypes */
+static u16 BCMFASTPATH wlc_d11hdrs_mac80211(struct wlc_info *wlc,
+ struct ieee80211_hw *hw,
+ struct sk_buff *p,
+ struct scb *scb, uint frag,
+ uint nfrags, uint queue,
+ uint next_frag_len,
+ wsec_key_t *key,
+ ratespec_t rspec_override);
+
+static void wlc_bss_default_init(struct wlc_info *wlc);
+static void wlc_ucode_mac_upd(struct wlc_info *wlc);
+static ratespec_t mac80211_wlc_set_nrate(struct wlc_info *wlc,
+ struct wlcband *cur_band, u32 int_val);
+static void wlc_tx_prec_map_init(struct wlc_info *wlc);
+static void wlc_watchdog(void *arg);
+static void wlc_watchdog_by_timer(void *arg);
+static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg);
+static int wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val,
+ const bcm_iovar_t *vi);
+static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc);
+
+/* send and receive */
+static wlc_txq_info_t *wlc_txq_alloc(struct wlc_info *wlc,
+ struct osl_info *osh);
+static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh,
+ wlc_txq_info_t *qi);
+static void wlc_txflowcontrol_signal(struct wlc_info *wlc, wlc_txq_info_t *qi,
+ bool on, int prio);
+static void wlc_txflowcontrol_reset(struct wlc_info *wlc);
+static u16 wlc_compute_airtime(struct wlc_info *wlc, ratespec_t rspec,
+ uint length);
+static void wlc_compute_cck_plcp(ratespec_t rate, uint length, u8 *plcp);
+static void wlc_compute_ofdm_plcp(ratespec_t rate, uint length, u8 *plcp);
+static void wlc_compute_mimo_plcp(ratespec_t rate, uint length, u8 *plcp);
+static u16 wlc_compute_frame_dur(struct wlc_info *wlc, ratespec_t rate,
+ u8 preamble_type, uint next_frag_len);
+static void wlc_recvctl(struct wlc_info *wlc, struct osl_info *osh,
+ d11rxhdr_t *rxh, struct sk_buff *p);
+static uint wlc_calc_frame_len(struct wlc_info *wlc, ratespec_t rate,
+ u8 preamble_type, uint dur);
+static uint wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rate,
+ u8 preamble_type);
+static uint wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rate,
+ u8 preamble_type);
+/* interrupt, up/down, band */
+static void wlc_setband(struct wlc_info *wlc, uint bandunit);
+static chanspec_t wlc_init_chanspec(struct wlc_info *wlc);
+static void wlc_bandinit_ordered(struct wlc_info *wlc, chanspec_t chanspec);
+static void wlc_bsinit(struct wlc_info *wlc);
+static int wlc_duty_cycle_set(struct wlc_info *wlc, int duty_cycle, bool isOFDM,
+ bool writeToShm);
+static void wlc_radio_hwdisable_upd(struct wlc_info *wlc);
+static bool wlc_radio_monitor_start(struct wlc_info *wlc);
+static void wlc_radio_timer(void *arg);
+static void wlc_radio_enable(struct wlc_info *wlc);
+static void wlc_radio_upd(struct wlc_info *wlc);
+
+/* scan, association, BSS */
+static uint wlc_calc_ba_time(struct wlc_info *wlc, ratespec_t rate,
+ u8 preamble_type);
+static void wlc_update_mimo_band_bwcap(struct wlc_info *wlc, u8 bwcap);
+static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val);
+static void wlc_ht_update_ldpc(struct wlc_info *wlc, s8 val);
+static void wlc_war16165(struct wlc_info *wlc, bool tx);
+
+static void wlc_process_eventq(void *arg);
+static void wlc_wme_retries_write(struct wlc_info *wlc);
+static bool wlc_attach_stf_ant_init(struct wlc_info *wlc);
+static uint wlc_attach_module(struct wlc_info *wlc);
+static void wlc_detach_module(struct wlc_info *wlc);
+static void wlc_timers_deinit(struct wlc_info *wlc);
+static void wlc_down_led_upd(struct wlc_info *wlc);
+static uint wlc_down_del_timer(struct wlc_info *wlc);
+static void wlc_ofdm_rateset_war(struct wlc_info *wlc);
+static int _wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
+ struct wlc_if *wlcif);
+
+#if defined(BCMDBG)
+void wlc_get_rcmta(struct wlc_info *wlc, int idx, struct ether_addr *addr)
+{
+ d11regs_t *regs = wlc->regs;
+ u32 v32;
+ struct osl_info *osh;
+
+ WL_TRACE("wl%d: %s\n", WLCWLUNIT(wlc), __func__);
+
+ ASSERT(wlc->pub->corerev > 4);
+
+ osh = wlc->osh;
+
+ W_REG(osh, ®s->objaddr, (OBJADDR_RCMTA_SEL | (idx * 2)));
+ (void)R_REG(osh, ®s->objaddr);
+ v32 = R_REG(osh, ®s->objdata);
+ addr->octet[0] = (u8) v32;
+ addr->octet[1] = (u8) (v32 >> 8);
+ addr->octet[2] = (u8) (v32 >> 16);
+ addr->octet[3] = (u8) (v32 >> 24);
+ W_REG(osh, ®s->objaddr, (OBJADDR_RCMTA_SEL | ((idx * 2) + 1)));
+ (void)R_REG(osh, ®s->objaddr);
+ v32 = R_REG(osh, (volatile u16 *)®s->objdata);
+ addr->octet[4] = (u8) v32;
+ addr->octet[5] = (u8) (v32 >> 8);
+}
+#endif /* defined(BCMDBG) */
+
+/* keep the chip awake if needed */
+bool wlc_stay_awake(struct wlc_info *wlc)
+{
+ return true;
+}
+
+/* conditions under which the PM bit should be set in outgoing frames and STAY_AWAKE is meaningful
+ */
+bool wlc_ps_allowed(struct wlc_info *wlc)
+{
+ int idx;
+ wlc_bsscfg_t *cfg;
+
+ /* disallow PS when one of the following global conditions meets */
+ if (!wlc->pub->associated || !wlc->PMenabled || wlc->PM_override)
+ return false;
+
+ /* disallow PS when one of these meets when not scanning */
+ if (!wlc->PMblocked) {
+ if (AP_ACTIVE(wlc) || wlc->monitor)
+ return false;
+ }
+
+ FOREACH_AS_STA(wlc, idx, cfg) {
+ /* disallow PS when one of the following bsscfg specific conditions meets */
+ if (!cfg->BSS || !WLC_PORTOPEN(cfg))
+ return false;
+
+ if (!cfg->dtim_programmed)
+ return false;
+ }
+
+ return true;
+}
+
+void wlc_reset(struct wlc_info *wlc)
+{
+ WL_TRACE("wl%d: wlc_reset\n", wlc->pub->unit);
+
+ wlc->check_for_unaligned_tbtt = false;
+
+ /* slurp up hw mac counters before core reset */
+ if (WLC_UPDATE_STATS(wlc)) {
+ wlc_statsupd(wlc);
+
+ /* reset our snapshot of macstat counters */
+ memset((char *)wlc->core->macstat_snapshot, 0,
+ sizeof(macstat_t));
+ }
+
+ wlc_bmac_reset(wlc->hw);
+ wlc_ampdu_reset(wlc->ampdu);
+ wlc->txretried = 0;
+
+}
+
+void wlc_fatal_error(struct wlc_info *wlc)
+{
+ WL_ERROR("wl%d: fatal error, reinitializing\n", wlc->pub->unit);
+ wl_init(wlc->wl);
+}
+
+/* Return the channel the driver should initialize during wlc_init.
+ * the channel may have to be changed from the currently configured channel
+ * if other configurations are in conflict (bandlocked, 11n mode disabled,
+ * invalid channel for current country, etc.)
+ */
+static chanspec_t wlc_init_chanspec(struct wlc_info *wlc)
+{
+ chanspec_t chanspec =
+ 1 | WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE |
+ WL_CHANSPEC_BAND_2G;
+
+ /* make sure the channel is on the supported band if we are band-restricted */
+ if (wlc->bandlocked || NBANDS(wlc) == 1) {
+ ASSERT(CHSPEC_WLCBANDUNIT(chanspec) == wlc->band->bandunit);
+ }
+ ASSERT(wlc_valid_chanspec_db(wlc->cmi, chanspec));
+ return chanspec;
+}
+
+struct scb global_scb;
+
+static void wlc_init_scb(struct wlc_info *wlc, struct scb *scb)
+{
+ int i;
+ scb->flags = SCB_WMECAP | SCB_HTCAP;
+ for (i = 0; i < NUMPRIO; i++)
+ scb->seqnum[i] = 0;
+}
+
+void wlc_init(struct wlc_info *wlc)
+{
+ d11regs_t *regs;
+ chanspec_t chanspec;
+ int i;
+ wlc_bsscfg_t *bsscfg;
+ bool mute = false;
+
+ WL_TRACE("wl%d: wlc_init\n", wlc->pub->unit);
+
+ regs = wlc->regs;
+
+ /* This will happen if a big-hammer was executed. In that case, we want to go back
+ * to the channel that we were on and not new channel
+ */
+ if (wlc->pub->associated)
+ chanspec = wlc->home_chanspec;
+ else
+ chanspec = wlc_init_chanspec(wlc);
+
+ wlc_bmac_init(wlc->hw, chanspec, mute);
+
+ wlc->seckeys = wlc_bmac_read_shm(wlc->hw, M_SECRXKEYS_PTR) * 2;
+ if (D11REV_GE(wlc->pub->corerev, 15) && (wlc->machwcap & MCAP_TKIPMIC))
+ wlc->tkmickeys =
+ wlc_bmac_read_shm(wlc->hw, M_TKMICKEYS_PTR) * 2;
+
+ /* update beacon listen interval */
+ wlc_bcn_li_upd(wlc);
+ wlc->bcn_wait_prd =
+ (u8) (wlc_bmac_read_shm(wlc->hw, M_NOSLPZNATDTIM) >> 10);
+ ASSERT(wlc->bcn_wait_prd > 0);
+
+ /* the world is new again, so is our reported rate */
+ wlc_reprate_init(wlc);
+
+ /* write ethernet address to core */
+ FOREACH_BSS(wlc, i, bsscfg) {
+ wlc_set_mac(bsscfg);
+ wlc_set_bssid(bsscfg);
+ }
+
+ /* Update tsf_cfprep if associated and up */
+ if (wlc->pub->associated) {
+ FOREACH_BSS(wlc, i, bsscfg) {
+ if (bsscfg->up) {
+ u32 bi;
+
+ /* get beacon period from bsscfg and convert to uS */
+ bi = bsscfg->current_bss->beacon_period << 10;
+ /* update the tsf_cfprep register */
+ /* since init path would reset to default value */
+ W_REG(wlc->osh, ®s->tsf_cfprep,
+ (bi << CFPREP_CBI_SHIFT));
+
+ /* Update maccontrol PM related bits */
+ wlc_set_ps_ctrl(wlc);
+
+ break;
+ }
+ }
+ }
+
+ wlc_key_hw_init_all(wlc);
+
+ wlc_bandinit_ordered(wlc, chanspec);
+
+ wlc_init_scb(wlc, &global_scb);
+
+ /* init probe response timeout */
+ wlc_write_shm(wlc, M_PRS_MAXTIME, wlc->prb_resp_timeout);
+
+ /* init max burst txop (framebursting) */
+ wlc_write_shm(wlc, M_MBURST_TXOP,
+ (wlc->
+ _rifs ? (EDCF_AC_VO_TXOP_AP << 5) : MAXFRAMEBURST_TXOP));
+
+ /* initialize maximum allowed duty cycle */
+ wlc_duty_cycle_set(wlc, wlc->tx_duty_cycle_ofdm, true, true);
+ wlc_duty_cycle_set(wlc, wlc->tx_duty_cycle_cck, false, true);
+
+ /* Update some shared memory locations related to max AMPDU size allowed to received */
+ wlc_ampdu_shm_upd(wlc->ampdu);
+
+ /* band-specific inits */
+ wlc_bsinit(wlc);
+
+ /* Enable EDCF mode (while the MAC is suspended) */
+ if (EDCF_ENAB(wlc->pub)) {
+ OR_REG(wlc->osh, ®s->ifs_ctl, IFS_USEEDCF);
+ wlc_edcf_setparams(wlc->cfg, false);
+ }
+
+ /* Init precedence maps for empty FIFOs */
+ wlc_tx_prec_map_init(wlc);
+
+ /* read the ucode version if we have not yet done so */
+ if (wlc->ucode_rev == 0) {
+ wlc->ucode_rev =
+ wlc_read_shm(wlc, M_BOM_REV_MAJOR) << NBITS(u16);
+ wlc->ucode_rev |= wlc_read_shm(wlc, M_BOM_REV_MINOR);
+ }
+
+ /* ..now really unleash hell (allow the MAC out of suspend) */
+ wlc_enable_mac(wlc);
+
+ /* clear tx flow control */
+ wlc_txflowcontrol_reset(wlc);
+
+ /* clear tx data fifo suspends */
+ wlc->tx_suspended = false;
+
+ /* enable the RF Disable Delay timer */
+ if (D11REV_GE(wlc->pub->corerev, 10))
+ W_REG(wlc->osh, &wlc->regs->rfdisabledly, RFDISABLE_DEFAULT);
+
+ /* initialize mpc delay */
+ wlc->mpc_delay_off = wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
+
+ /*
+ * Initialize WME parameters; if they haven't been set by some other
+ * mechanism (IOVar, etc) then read them from the hardware.
+ */
+ if (WLC_WME_RETRY_SHORT_GET(wlc, 0) == 0) { /* Unintialized; read from HW */
+ int ac;
+
+ ASSERT(wlc->clk);
+ for (ac = 0; ac < AC_COUNT; ac++) {
+ wlc->wme_retries[ac] =
+ wlc_read_shm(wlc, M_AC_TXLMT_ADDR(ac));
+ }
+ }
+}
+
+void wlc_mac_bcn_promisc_change(struct wlc_info *wlc, bool promisc)
+{
+ wlc->bcnmisc_monitor = promisc;
+ wlc_mac_bcn_promisc(wlc);
+}
+
+void wlc_mac_bcn_promisc(struct wlc_info *wlc)
+{
+ if ((AP_ENAB(wlc->pub) && (N_ENAB(wlc->pub) || wlc->band->gmode)) ||
+ wlc->bcnmisc_ibss || wlc->bcnmisc_scan || wlc->bcnmisc_monitor)
+ wlc_mctrl(wlc, MCTL_BCNS_PROMISC, MCTL_BCNS_PROMISC);
+ else
+ wlc_mctrl(wlc, MCTL_BCNS_PROMISC, 0);
+}
+
+/* set or clear maccontrol bits MCTL_PROMISC and MCTL_KEEPCONTROL */
+void wlc_mac_promisc(struct wlc_info *wlc)
+{
+ u32 promisc_bits = 0;
+
+ /* promiscuous mode just sets MCTL_PROMISC
+ * Note: APs get all BSS traffic without the need to set the MCTL_PROMISC bit
+ * since all BSS data traffic is directed at the AP
+ */
+ if (PROMISC_ENAB(wlc->pub) && !AP_ENAB(wlc->pub) && !wlc->wet)
+ promisc_bits |= MCTL_PROMISC;
+
+ /* monitor mode needs both MCTL_PROMISC and MCTL_KEEPCONTROL
+ * Note: monitor mode also needs MCTL_BCNS_PROMISC, but that is
+ * handled in wlc_mac_bcn_promisc()
+ */
+ if (MONITOR_ENAB(wlc))
+ promisc_bits |= MCTL_PROMISC | MCTL_KEEPCONTROL;
+
+ wlc_mctrl(wlc, MCTL_PROMISC | MCTL_KEEPCONTROL, promisc_bits);
+}
+
+/* check if hps and wake states of sw and hw are in sync */
+bool wlc_ps_check(struct wlc_info *wlc)
+{
+ bool res = true;
+ bool hps, wake;
+ bool wake_ok;
+
+ if (!AP_ACTIVE(wlc)) {
+ volatile u32 tmp;
+ tmp = R_REG(wlc->osh, &wlc->regs->maccontrol);
+
+ /* If deviceremoved is detected, then don't take any action as this can be called
+ * in any context. Assume that caller will take care of the condition. This is just
+ * to avoid assert
+ */
+ if (tmp == 0xffffffff) {
+ WL_ERROR("wl%d: %s: dead chip\n",
+ wlc->pub->unit, __func__);
+ return DEVICEREMOVED(wlc);
+ }
+
+ hps = PS_ALLOWED(wlc);
+
+ if (hps != ((tmp & MCTL_HPS) != 0)) {
+ int idx;
+ wlc_bsscfg_t *cfg;
+ WL_ERROR("wl%d: hps not sync, sw %d, maccontrol 0x%x\n",
+ wlc->pub->unit, hps, tmp);
+ FOREACH_BSS(wlc, idx, cfg) {
+ if (!BSSCFG_STA(cfg))
+ continue;
+ }
+
+ res = false;
+ }
+ /* For a monolithic build the wake check can be exact since it looks at wake
+ * override bits. The MCTL_WAKE bit should match the 'wake' value.
+ */
+ wake = STAY_AWAKE(wlc) || wlc->hw->wake_override;
+ wake_ok = (wake == ((tmp & MCTL_WAKE) != 0));
+ if (hps && !wake_ok) {
+ WL_ERROR("wl%d: wake not sync, sw %d maccontrol 0x%x\n",
+ wlc->pub->unit, wake, tmp);
+ res = false;
+ }
+ }
+ ASSERT(res);
+ return res;
+}
+
+/* push sw hps and wake state through hardware */
+void wlc_set_ps_ctrl(struct wlc_info *wlc)
+{
+ u32 v1, v2;
+ bool hps, wake;
+ bool awake_before;
+
+ hps = PS_ALLOWED(wlc);
+ wake = hps ? (STAY_AWAKE(wlc)) : true;
+
+ WL_TRACE("wl%d: wlc_set_ps_ctrl: hps %d wake %d\n",
+ wlc->pub->unit, hps, wake);
+
+ v1 = R_REG(wlc->osh, &wlc->regs->maccontrol);
+ v2 = 0;
+ if (hps)
+ v2 |= MCTL_HPS;
+ if (wake)
+ v2 |= MCTL_WAKE;
+
+ wlc_mctrl(wlc, MCTL_WAKE | MCTL_HPS, v2);
+
+ awake_before = ((v1 & MCTL_WAKE) || ((v1 & MCTL_HPS) == 0));
+
+ if (wake && !awake_before)
+ wlc_bmac_wait_for_wake(wlc->hw);
+
+}
+
+/*
+ * Write this BSS config's MAC address to core.
+ * Updates RXE match engine.
+ */
+int wlc_set_mac(wlc_bsscfg_t *cfg)
+{
+ int err = 0;
+ struct wlc_info *wlc = cfg->wlc;
+
+ if (cfg == wlc->cfg) {
+ /* enter the MAC addr into the RXE match registers */
+ wlc_set_addrmatch(wlc, RCM_MAC_OFFSET, &cfg->cur_etheraddr);
+ }
+
+ wlc_ampdu_macaddr_upd(wlc);
+
+ return err;
+}
+
+/* Write the BSS config's BSSID address to core (set_bssid in d11procs.tcl).
+ * Updates RXE match engine.
+ */
+void wlc_set_bssid(wlc_bsscfg_t *cfg)
+{
+ struct wlc_info *wlc = cfg->wlc;
+
+ /* if primary config, we need to update BSSID in RXE match registers */
+ if (cfg == wlc->cfg) {
+ wlc_set_addrmatch(wlc, RCM_BSSID_OFFSET, &cfg->BSSID);
+ }
+#ifdef SUPPORT_HWKEYS
+ else if (BSSCFG_STA(cfg) && cfg->BSS) {
+ wlc_rcmta_add_bssid(wlc, cfg);
+ }
+#endif
+}
+
+/*
+ * Suspend the the MAC and update the slot timing
+ * for standard 11b/g (20us slots) or shortslot 11g (9us slots).
+ */
+void wlc_switch_shortslot(struct wlc_info *wlc, bool shortslot)
+{
+ int idx;
+ wlc_bsscfg_t *cfg;
+
+ ASSERT(wlc->band->gmode);
+
+ /* use the override if it is set */
+ if (wlc->shortslot_override != WLC_SHORTSLOT_AUTO)
+ shortslot = (wlc->shortslot_override == WLC_SHORTSLOT_ON);
+
+ if (wlc->shortslot == shortslot)
+ return;
+
+ wlc->shortslot = shortslot;
+
+ /* update the capability based on current shortslot mode */
+ FOREACH_BSS(wlc, idx, cfg) {
+ if (!cfg->associated)
+ continue;
+ cfg->current_bss->capability &= ~DOT11_CAP_SHORTSLOT;
+ if (wlc->shortslot)
+ cfg->current_bss->capability |= DOT11_CAP_SHORTSLOT;
+ }
+
+ wlc_bmac_set_shortslot(wlc->hw, shortslot);
+}
+
+static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc)
+{
+ u8 local;
+ s16 local_max;
+
+ local = WLC_TXPWR_MAX;
+ if (wlc->pub->associated &&
+ (wf_chspec_ctlchan(wlc->chanspec) ==
+ wf_chspec_ctlchan(wlc->home_chanspec))) {
+
+ /* get the local power constraint if we are on the AP's
+ * channel [802.11h, 7.3.2.13]
+ */
+ /* Clamp the value between 0 and WLC_TXPWR_MAX w/o overflowing the target */
+ local_max =
+ (wlc->txpwr_local_max -
+ wlc->txpwr_local_constraint) * WLC_TXPWR_DB_FACTOR;
+ if (local_max > 0 && local_max < WLC_TXPWR_MAX)
+ return (u8) local_max;
+ if (local_max < 0)
+ return 0;
+ }
+
+ return local;
+}
+
+/* propagate home chanspec to all bsscfgs in case bsscfg->current_bss->chanspec is referenced */
+void wlc_set_home_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
+{
+ if (wlc->home_chanspec != chanspec) {
+ int idx;
+ wlc_bsscfg_t *cfg;
+
+ wlc->home_chanspec = chanspec;
+
+ FOREACH_BSS(wlc, idx, cfg) {
+ if (!cfg->associated)
+ continue;
+ cfg->target_bss->chanspec = chanspec;
+ cfg->current_bss->chanspec = chanspec;
+ }
+
+ }
+}
+
+static void wlc_set_phy_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
+{
+ /* Save our copy of the chanspec */
+ wlc->chanspec = chanspec;
+
+ /* Set the chanspec and power limits for this locale after computing
+ * any 11h local tx power constraints.
+ */
+ wlc_channel_set_chanspec(wlc->cmi, chanspec,
+ wlc_local_constraint_qdbm(wlc));
+
+ if (wlc->stf->ss_algosel_auto)
+ wlc_stf_ss_algo_channel_get(wlc, &wlc->stf->ss_algo_channel,
+ chanspec);
+
+ wlc_stf_ss_update(wlc, wlc->band);
+
+}
+
+void wlc_set_chanspec(struct wlc_info *wlc, chanspec_t chanspec)
+{
+ uint bandunit;
+ bool switchband = false;
+ chanspec_t old_chanspec = wlc->chanspec;
+
+ if (!wlc_valid_chanspec_db(wlc->cmi, chanspec)) {
+ WL_ERROR("wl%d: %s: Bad channel %d\n",
+ wlc->pub->unit, __func__, CHSPEC_CHANNEL(chanspec));
+ ASSERT(wlc_valid_chanspec_db(wlc->cmi, chanspec));
+ return;
+ }
+
+ /* Switch bands if necessary */
+ if (NBANDS(wlc) > 1) {
+ bandunit = CHSPEC_WLCBANDUNIT(chanspec);
+ if (wlc->band->bandunit != bandunit || wlc->bandinit_pending) {
+ switchband = true;
+ if (wlc->bandlocked) {
+ WL_ERROR("wl%d: %s: chspec %d band is locked!\n",
+ wlc->pub->unit, __func__,
+ CHSPEC_CHANNEL(chanspec));
+ return;
+ }
+ /* BMAC_NOTE: should the setband call come after the wlc_bmac_chanspec() ?
+ * if the setband updates (wlc_bsinit) use low level calls to inspect and
+ * set state, the state inspected may be from the wrong band, or the
+ * following wlc_bmac_set_chanspec() may undo the work.
+ */
+ wlc_setband(wlc, bandunit);
+ }
+ }
+
+ ASSERT(N_ENAB(wlc->pub) || !CHSPEC_IS40(chanspec));
+
+ /* sync up phy/radio chanspec */
+ wlc_set_phy_chanspec(wlc, chanspec);
+
+ /* init antenna selection */
+ if (CHSPEC_WLC_BW(old_chanspec) != CHSPEC_WLC_BW(chanspec)) {
+ if (WLANTSEL_ENAB(wlc))
+ wlc_antsel_init(wlc->asi);
+
+ /* Fix the hardware rateset based on bw.
+ * Mainly add MCS32 for 40Mhz, remove MCS 32 for 20Mhz
+ */
+ wlc_rateset_bw_mcs_filter(&wlc->band->hw_rateset,
+ wlc->band->
+ mimo_cap_40 ? CHSPEC_WLC_BW(chanspec)
+ : 0);
+ }
+
+ /* update some mac configuration since chanspec changed */
+ wlc_ucode_mac_upd(wlc);
+}
+
+#if defined(BCMDBG)
+static int wlc_get_current_txpwr(struct wlc_info *wlc, void *pwr, uint len)
+{
+ txpwr_limits_t txpwr;
+ tx_power_t power;
+ tx_power_legacy_t *old_power = NULL;
+ int r, c;
+ uint qdbm;
+ bool override;
+
+ if (len == sizeof(tx_power_legacy_t))
+ old_power = (tx_power_legacy_t *) pwr;
+ else if (len < sizeof(tx_power_t))
+ return BCME_BUFTOOSHORT;
+
+ memset(&power, 0, sizeof(tx_power_t));
+
+ power.chanspec = WLC_BAND_PI_RADIO_CHANSPEC;
+ if (wlc->pub->associated)
+ power.local_chanspec = wlc->home_chanspec;
+
+ /* Return the user target tx power limits for the various rates. Note wlc_phy.c's
+ * public interface only implements getting and setting a single value for all of
+ * rates, so we need to fill the array ourselves.
+ */
+ wlc_phy_txpower_get(wlc->band->pi, &qdbm, &override);
+ for (r = 0; r < WL_TX_POWER_RATES; r++) {
+ power.user_limit[r] = (u8) qdbm;
+ }
+
+ power.local_max = wlc->txpwr_local_max * WLC_TXPWR_DB_FACTOR;
+ power.local_constraint =
+ wlc->txpwr_local_constraint * WLC_TXPWR_DB_FACTOR;
+
+ power.antgain[0] = wlc->bandstate[BAND_2G_INDEX]->antgain;
+ power.antgain[1] = wlc->bandstate[BAND_5G_INDEX]->antgain;
+
+ wlc_channel_reg_limits(wlc->cmi, power.chanspec, &txpwr);
+
+#if WL_TX_POWER_CCK_NUM != WLC_NUM_RATES_CCK
+#error "WL_TX_POWER_CCK_NUM != WLC_NUM_RATES_CCK"
+#endif
+
+ /* CCK tx power limits */
+ for (c = 0, r = WL_TX_POWER_CCK_FIRST; c < WL_TX_POWER_CCK_NUM;
+ c++, r++)
+ power.reg_limit[r] = txpwr.cck[c];
+
+#if WL_TX_POWER_OFDM_NUM != WLC_NUM_RATES_OFDM
+#error "WL_TX_POWER_OFDM_NUM != WLC_NUM_RATES_OFDM"
+#endif
+
+ /* 20 MHz OFDM SISO tx power limits */
+ for (c = 0, r = WL_TX_POWER_OFDM_FIRST; c < WL_TX_POWER_OFDM_NUM;
+ c++, r++)
+ power.reg_limit[r] = txpwr.ofdm[c];
+
+ if (WLC_PHY_11N_CAP(wlc->band)) {
+
+ /* 20 MHz OFDM CDD tx power limits */
+ for (c = 0, r = WL_TX_POWER_OFDM20_CDD_FIRST;
+ c < WL_TX_POWER_OFDM_NUM; c++, r++)
+ power.reg_limit[r] = txpwr.ofdm_cdd[c];
+
+ /* 40 MHz OFDM SISO tx power limits */
+ for (c = 0, r = WL_TX_POWER_OFDM40_SISO_FIRST;
+ c < WL_TX_POWER_OFDM_NUM; c++, r++)
+ power.reg_limit[r] = txpwr.ofdm_40_siso[c];
+
+ /* 40 MHz OFDM CDD tx power limits */
+ for (c = 0, r = WL_TX_POWER_OFDM40_CDD_FIRST;
+ c < WL_TX_POWER_OFDM_NUM; c++, r++)
+ power.reg_limit[r] = txpwr.ofdm_40_cdd[c];
+
+#if WL_TX_POWER_MCS_1_STREAM_NUM != WLC_NUM_RATES_MCS_1_STREAM
+#error "WL_TX_POWER_MCS_1_STREAM_NUM != WLC_NUM_RATES_MCS_1_STREAM"
+#endif
+
+ /* 20MHz MCS0-7 SISO tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS20_SISO_FIRST;
+ c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_20_siso[c];
+
+ /* 20MHz MCS0-7 CDD tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS20_CDD_FIRST;
+ c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_20_cdd[c];
+
+ /* 20MHz MCS0-7 STBC tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS20_STBC_FIRST;
+ c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_20_stbc[c];
+
+ /* 40MHz MCS0-7 SISO tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS40_SISO_FIRST;
+ c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_40_siso[c];
+
+ /* 40MHz MCS0-7 CDD tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS40_CDD_FIRST;
+ c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_40_cdd[c];
+
+ /* 40MHz MCS0-7 STBC tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS40_STBC_FIRST;
+ c < WLC_NUM_RATES_MCS_1_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_40_stbc[c];
+
+#if WL_TX_POWER_MCS_2_STREAM_NUM != WLC_NUM_RATES_MCS_2_STREAM
+#error "WL_TX_POWER_MCS_2_STREAM_NUM != WLC_NUM_RATES_MCS_2_STREAM"
+#endif
+
+ /* 20MHz MCS8-15 SDM tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS20_SDM_FIRST;
+ c < WLC_NUM_RATES_MCS_2_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_20_mimo[c];
+
+ /* 40MHz MCS8-15 SDM tx power limits */
+ for (c = 0, r = WL_TX_POWER_MCS40_SDM_FIRST;
+ c < WLC_NUM_RATES_MCS_2_STREAM; c++, r++)
+ power.reg_limit[r] = txpwr.mcs_40_mimo[c];
+
+ /* MCS 32 */
+ power.reg_limit[WL_TX_POWER_MCS_32] = txpwr.mcs32;
+ }
+
+ wlc_phy_txpower_get_current(wlc->band->pi, &power,
+ CHSPEC_CHANNEL(power.chanspec));
+
+ /* copy the tx_power_t struct to the return buffer,
+ * or convert to a tx_power_legacy_t struct
+ */
+ if (!old_power) {
+ bcopy(&power, pwr, sizeof(tx_power_t));
+ } else {
+ int band_idx = CHSPEC_IS2G(power.chanspec) ? 0 : 1;
+
+ memset(old_power, 0, sizeof(tx_power_legacy_t));
+
+ old_power->txpwr_local_max = power.local_max;
+ old_power->txpwr_local_constraint = power.local_constraint;
+ if (CHSPEC_IS2G(power.chanspec)) {
+ old_power->txpwr_chan_reg_max = txpwr.cck[0];
+ old_power->txpwr_est_Pout[band_idx] =
+ power.est_Pout_cck;
+ old_power->txpwr_est_Pout_gofdm = power.est_Pout[0];
+ } else {
+ old_power->txpwr_chan_reg_max = txpwr.ofdm[0];
+ old_power->txpwr_est_Pout[band_idx] = power.est_Pout[0];
+ }
+ old_power->txpwr_antgain[0] = power.antgain[0];
+ old_power->txpwr_antgain[1] = power.antgain[1];
+
+ for (r = 0; r < NUM_PWRCTRL_RATES; r++) {
+ old_power->txpwr_band_max[r] = power.user_limit[r];
+ old_power->txpwr_limit[r] = power.reg_limit[r];
+ old_power->txpwr_target[band_idx][r] = power.target[r];
+ if (CHSPEC_IS2G(power.chanspec))
+ old_power->txpwr_bphy_cck_max[r] =
+ power.board_limit[r];
+ else
+ old_power->txpwr_aphy_max[r] =
+ power.board_limit[r];
+ }
+ }
+
+ return 0;
+}
+#endif /* defined(BCMDBG) */
+
+static u32 wlc_watchdog_backup_bi(struct wlc_info *wlc)
+{
+ u32 bi;
+ bi = 2 * wlc->cfg->current_bss->dtim_period *
+ wlc->cfg->current_bss->beacon_period;
+ if (wlc->bcn_li_dtim)
+ bi *= wlc->bcn_li_dtim;
+ else if (wlc->bcn_li_bcn)
+ /* recalculate bi based on bcn_li_bcn */
+ bi = 2 * wlc->bcn_li_bcn * wlc->cfg->current_bss->beacon_period;
+
+ if (bi < 2 * TIMER_INTERVAL_WATCHDOG)
+ bi = 2 * TIMER_INTERVAL_WATCHDOG;
+ return bi;
+}
+
+/* Change to run the watchdog either from a periodic timer or from tbtt handler.
+ * Call watchdog from tbtt handler if tbtt is true, watchdog timer otherwise.
+ */
+void wlc_watchdog_upd(struct wlc_info *wlc, bool tbtt)
+{
+ /* make sure changing watchdog driver is allowed */
+ if (!wlc->pub->up || !wlc->pub->align_wd_tbtt)
+ return;
+ if (!tbtt && wlc->WDarmed) {
+ wl_del_timer(wlc->wl, wlc->wdtimer);
+ wlc->WDarmed = false;
+ }
+
+ /* stop watchdog timer and use tbtt interrupt to drive watchdog */
+ if (tbtt && wlc->WDarmed) {
+ wl_del_timer(wlc->wl, wlc->wdtimer);
+ wlc->WDarmed = false;
+ wlc->WDlast = OSL_SYSUPTIME();
+ }
+ /* arm watchdog timer and drive the watchdog there */
+ else if (!tbtt && !wlc->WDarmed) {
+ wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG,
+ true);
+ wlc->WDarmed = true;
+ }
+ if (tbtt && !wlc->WDarmed) {
+ wl_add_timer(wlc->wl, wlc->wdtimer, wlc_watchdog_backup_bi(wlc),
+ true);
+ wlc->WDarmed = true;
+ }
+}
+
+ratespec_t wlc_lowest_basic_rspec(struct wlc_info *wlc, wlc_rateset_t *rs)
+{
+ ratespec_t lowest_basic_rspec;
+ uint i;
+
+ /* Use the lowest basic rate */
+ lowest_basic_rspec = rs->rates[0] & RATE_MASK;
+ for (i = 0; i < rs->count; i++) {
+ if (rs->rates[i] & WLC_RATE_FLAG) {
+ lowest_basic_rspec = rs->rates[i] & RATE_MASK;
+ break;
+ }
+ }
+#if NCONF
+ /* pick siso/cdd as default for OFDM (note no basic rate MCSs are supported yet) */
+ if (IS_OFDM(lowest_basic_rspec)) {
+ lowest_basic_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
+ }
+#endif
+
+ return lowest_basic_rspec;
+}
+
+/* This function changes the phytxctl for beacon based on current beacon ratespec AND txant
+ * setting as per this table:
+ * ratespec CCK ant = wlc->stf->txant
+ * OFDM ant = 3
+ */
+void wlc_beacon_phytxctl_txant_upd(struct wlc_info *wlc, ratespec_t bcn_rspec)
+{
+ u16 phyctl;
+ u16 phytxant = wlc->stf->phytxant;
+ u16 mask = PHY_TXC_ANT_MASK;
+
+ /* for non-siso rates or default setting, use the available chains */
+ if (WLC_PHY_11N_CAP(wlc->band)) {
+ phytxant = wlc_stf_phytxchain_sel(wlc, bcn_rspec);
+ }
+
+ phyctl = wlc_read_shm(wlc, M_BCN_PCTLWD);
+ phyctl = (phyctl & ~mask) | phytxant;
+ wlc_write_shm(wlc, M_BCN_PCTLWD, phyctl);
+}
+
+/* centralized protection config change function to simplify debugging, no consistency checking
+ * this should be called only on changes to avoid overhead in periodic function
+*/
+void wlc_protection_upd(struct wlc_info *wlc, uint idx, int val)
+{
+ WL_TRACE("wlc_protection_upd: idx %d, val %d\n", idx, val);
+
+ switch (idx) {
+ case WLC_PROT_G_SPEC:
+ wlc->protection->_g = (bool) val;
+ break;
+ case WLC_PROT_G_OVR:
+ wlc->protection->g_override = (s8) val;
+ break;
+ case WLC_PROT_G_USER:
+ wlc->protection->gmode_user = (u8) val;
+ break;
+ case WLC_PROT_OVERLAP:
+ wlc->protection->overlap = (s8) val;
+ break;
+ case WLC_PROT_N_USER:
+ wlc->protection->nmode_user = (s8) val;
+ break;
+ case WLC_PROT_N_CFG:
+ wlc->protection->n_cfg = (s8) val;
+ break;
+ case WLC_PROT_N_CFG_OVR:
+ wlc->protection->n_cfg_override = (s8) val;
+ break;
+ case WLC_PROT_N_NONGF:
+ wlc->protection->nongf = (bool) val;
+ break;
+ case WLC_PROT_N_NONGF_OVR:
+ wlc->protection->nongf_override = (s8) val;
+ break;
+ case WLC_PROT_N_PAM_OVR:
+ wlc->protection->n_pam_override = (s8) val;
+ break;
+ case WLC_PROT_N_OBSS:
+ wlc->protection->n_obss = (bool) val;
+ break;
+
+ default:
+ ASSERT(0);
+ break;
+ }
+
+}
+
+static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val)
+{
+ wlc->ht_cap.cap &= ~(HT_CAP_SHORT_GI_20 | HT_CAP_SHORT_GI_40);
+ wlc->ht_cap.cap |= (val & WLC_N_SGI_20) ? HT_CAP_SHORT_GI_20 : 0;
+ wlc->ht_cap.cap |= (val & WLC_N_SGI_40) ? HT_CAP_SHORT_GI_40 : 0;
+
+ if (wlc->pub->up) {
+ wlc_update_beacon(wlc);
+ wlc_update_probe_resp(wlc, true);
+ }
+}
+
+static void wlc_ht_update_ldpc(struct wlc_info *wlc, s8 val)
+{
+ wlc->stf->ldpc = val;
+
+ wlc->ht_cap.cap &= ~HT_CAP_LDPC_CODING;
+ if (wlc->stf->ldpc != OFF)
+ wlc->ht_cap.cap |= HT_CAP_LDPC_CODING;
+
+ if (wlc->pub->up) {
+ wlc_update_beacon(wlc);
+ wlc_update_probe_resp(wlc, true);
+ wlc_phy_ldpc_override_set(wlc->band->pi, (val ? true : false));
+ }
+}
+
+/*
+ * ucode, hwmac update
+ * Channel dependent updates for ucode and hw
+ */
+static void wlc_ucode_mac_upd(struct wlc_info *wlc)
+{
+ /* enable or disable any active IBSSs depending on whether or not
+ * we are on the home channel
+ */
+ if (wlc->home_chanspec == WLC_BAND_PI_RADIO_CHANSPEC) {
+ if (wlc->pub->associated) {
+ /* BMAC_NOTE: This is something that should be fixed in ucode inits.
+ * I think that the ucode inits set up the bcn templates and shm values
+ * with a bogus beacon. This should not be done in the inits. If ucode needs
+ * to set up a beacon for testing, the test routines should write it down,
+ * not expect the inits to populate a bogus beacon.
+ */
+ if (WLC_PHY_11N_CAP(wlc->band)) {
+ wlc_write_shm(wlc, M_BCN_TXTSF_OFFSET,
+ wlc->band->bcntsfoff);
+ }
+ }
+ } else {
+ /* disable an active IBSS if we are not on the home channel */
+ }
+
+ /* update the various promisc bits */
+ wlc_mac_bcn_promisc(wlc);
+ wlc_mac_promisc(wlc);
+}
+
+static void wlc_bandinit_ordered(struct wlc_info *wlc, chanspec_t chanspec)
+{
+ wlc_rateset_t default_rateset;
+ uint parkband;
+ uint i, band_order[2];
+
+ WL_TRACE("wl%d: wlc_bandinit_ordered\n", wlc->pub->unit);
+ /*
+ * We might have been bandlocked during down and the chip power-cycled (hibernate).
+ * figure out the right band to park on
+ */
+ if (wlc->bandlocked || NBANDS(wlc) == 1) {
+ ASSERT(CHSPEC_WLCBANDUNIT(chanspec) == wlc->band->bandunit);
+
+ parkband = wlc->band->bandunit; /* updated in wlc_bandlock() */
+ band_order[0] = band_order[1] = parkband;
+ } else {
+ /* park on the band of the specified chanspec */
+ parkband = CHSPEC_WLCBANDUNIT(chanspec);
+
+ /* order so that parkband initialize last */
+ band_order[0] = parkband ^ 1;
+ band_order[1] = parkband;
+ }
+
+ /* make each band operational, software state init */
+ for (i = 0; i < NBANDS(wlc); i++) {
+ uint j = band_order[i];
+
+ wlc->band = wlc->bandstate[j];
+
+ wlc_default_rateset(wlc, &default_rateset);
+
+ /* fill in hw_rate */
+ wlc_rateset_filter(&default_rateset, &wlc->band->hw_rateset,
+ false, WLC_RATES_CCK_OFDM, RATE_MASK,
+ (bool) N_ENAB(wlc->pub));
+
+ /* init basic rate lookup */
+ wlc_rate_lookup_init(wlc, &default_rateset);
+ }
+
+ /* sync up phy/radio chanspec */
+ wlc_set_phy_chanspec(wlc, chanspec);
+}
+
+/* band-specific init */
+static void WLBANDINITFN(wlc_bsinit) (struct wlc_info *wlc)
+{
+ WL_TRACE("wl%d: wlc_bsinit: bandunit %d\n",
+ wlc->pub->unit, wlc->band->bandunit);
+
+ /* write ucode ACK/CTS rate table */
+ wlc_set_ratetable(wlc);
+
+ /* update some band specific mac configuration */
+ wlc_ucode_mac_upd(wlc);
+
+ /* init antenna selection */
+ if (WLANTSEL_ENAB(wlc))
+ wlc_antsel_init(wlc->asi);
+
+}
+
+/* switch to and initialize new band */
+static void WLBANDINITFN(wlc_setband) (struct wlc_info *wlc, uint bandunit)
+{
+ int idx;
+ wlc_bsscfg_t *cfg;
+
+ ASSERT(NBANDS(wlc) > 1);
+ ASSERT(!wlc->bandlocked);
+ ASSERT(bandunit != wlc->band->bandunit || wlc->bandinit_pending);
+
+ wlc->band = wlc->bandstate[bandunit];
+
+ if (!wlc->pub->up)
+ return;
+
+ /* wait for at least one beacon before entering sleeping state */
+ wlc->PMawakebcn = true;
+ FOREACH_AS_STA(wlc, idx, cfg)
+ cfg->PMawakebcn = true;
+ wlc_set_ps_ctrl(wlc);
+
+ /* band-specific initializations */
+ wlc_bsinit(wlc);
+}
+
+/* Initialize a WME Parameter Info Element with default STA parameters from WMM Spec, Table 12 */
+void wlc_wme_initparams_sta(struct wlc_info *wlc, wme_param_ie_t *pe)
+{
+ static const wme_param_ie_t stadef = {
+ WME_OUI,
+ WME_TYPE,
+ WME_SUBTYPE_PARAM_IE,
+ WME_VER,
+ 0,
+ 0,
+ {
+ {EDCF_AC_BE_ACI_STA, EDCF_AC_BE_ECW_STA,
+ HTOL16(EDCF_AC_BE_TXOP_STA)},
+ {EDCF_AC_BK_ACI_STA, EDCF_AC_BK_ECW_STA,
+ HTOL16(EDCF_AC_BK_TXOP_STA)},
+ {EDCF_AC_VI_ACI_STA, EDCF_AC_VI_ECW_STA,
+ HTOL16(EDCF_AC_VI_TXOP_STA)},
+ {EDCF_AC_VO_ACI_STA, EDCF_AC_VO_ECW_STA,
+ HTOL16(EDCF_AC_VO_TXOP_STA)}
+ }
+ };
+
+ ASSERT(sizeof(*pe) == WME_PARAM_IE_LEN);
+ memcpy(pe, &stadef, sizeof(*pe));
+}
+
+void wlc_wme_setparams(struct wlc_info *wlc, u16 aci, void *arg, bool suspend)
+{
+ int i;
+ shm_acparams_t acp_shm;
+ u16 *shm_entry;
+ struct ieee80211_tx_queue_params *params = arg;
+
+ ASSERT(wlc);
+
+ /* Only apply params if the core is out of reset and has clocks */
+ if (!wlc->clk) {
+ WL_ERROR("wl%d: %s : no-clock\n", wlc->pub->unit, __func__);
+ return;
+ }
+
+ /*
+ * AP uses AC params from wme_param_ie_ap.
+ * AP advertises AC params from wme_param_ie.
+ * STA uses AC params from wme_param_ie.
+ */
+
+ wlc->wme_admctl = 0;
+
+ do {
+ memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
+ /* find out which ac this set of params applies to */
+ ASSERT(aci < AC_COUNT);
+ /* set the admission control policy for this AC */
+ /* wlc->wme_admctl |= 1 << aci; *//* should be set ?? seems like off by default */
+
+ /* fill in shm ac params struct */
+ acp_shm.txop = ltoh16(params->txop);
+ /* convert from units of 32us to us for ucode */
+ wlc->edcf_txop[aci & 0x3] = acp_shm.txop =
+ EDCF_TXOP2USEC(acp_shm.txop);
+ acp_shm.aifs = (params->aifs & EDCF_AIFSN_MASK);
+
+ if (aci == AC_VI && acp_shm.txop == 0
+ && acp_shm.aifs < EDCF_AIFSN_MAX)
+ acp_shm.aifs++;
+
+ if (acp_shm.aifs < EDCF_AIFSN_MIN
+ || acp_shm.aifs > EDCF_AIFSN_MAX) {
+ WL_ERROR("wl%d: wlc_edcf_setparams: bad aifs %d\n",
+ wlc->pub->unit, acp_shm.aifs);
+ continue;
+ }
+
+ acp_shm.cwmin = params->cw_min;
+ acp_shm.cwmax = params->cw_max;
+ acp_shm.cwcur = acp_shm.cwmin;
+ acp_shm.bslots =
+ R_REG(wlc->osh, &wlc->regs->tsf_random) & acp_shm.cwcur;
+ acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
+ /* Indicate the new params to the ucode */
+ acp_shm.status = wlc_read_shm(wlc, (M_EDCF_QINFO +
+ wme_shmemacindex(aci) *
+ M_EDCF_QLEN +
+ M_EDCF_STATUS_OFF));
+ acp_shm.status |= WME_STATUS_NEWAC;
+
+ /* Fill in shm acparam table */
+ shm_entry = (u16 *) &acp_shm;
+ for (i = 0; i < (int)sizeof(shm_acparams_t); i += 2)
+ wlc_write_shm(wlc,
+ M_EDCF_QINFO +
+ wme_shmemacindex(aci) * M_EDCF_QLEN + i,
+ *shm_entry++);
+
+ } while (0);
+
+ if (suspend)
+ wlc_suspend_mac_and_wait(wlc);
+
+ if (suspend)
+ wlc_enable_mac(wlc);
+
+}
+
+void wlc_edcf_setparams(wlc_bsscfg_t *cfg, bool suspend)
+{
+ struct wlc_info *wlc = cfg->wlc;
+ uint aci, i, j;
+ edcf_acparam_t *edcf_acp;
+ shm_acparams_t acp_shm;
+ u16 *shm_entry;
+
+ ASSERT(cfg);
+ ASSERT(wlc);
+
+ /* Only apply params if the core is out of reset and has clocks */
+ if (!wlc->clk)
+ return;
+
+ /*
+ * AP uses AC params from wme_param_ie_ap.
+ * AP advertises AC params from wme_param_ie.
+ * STA uses AC params from wme_param_ie.
+ */
+
+ edcf_acp = (edcf_acparam_t *) &wlc->wme_param_ie.acparam[0];
+
+ wlc->wme_admctl = 0;
+
+ for (i = 0; i < AC_COUNT; i++, edcf_acp++) {
+ memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
+ /* find out which ac this set of params applies to */
+ aci = (edcf_acp->ACI & EDCF_ACI_MASK) >> EDCF_ACI_SHIFT;
+ ASSERT(aci < AC_COUNT);
+ /* set the admission control policy for this AC */
+ if (edcf_acp->ACI & EDCF_ACM_MASK) {
+ wlc->wme_admctl |= 1 << aci;
+ }
+
+ /* fill in shm ac params struct */
+ acp_shm.txop = ltoh16(edcf_acp->TXOP);
+ /* convert from units of 32us to us for ucode */
+ wlc->edcf_txop[aci] = acp_shm.txop =
+ EDCF_TXOP2USEC(acp_shm.txop);
+ acp_shm.aifs = (edcf_acp->ACI & EDCF_AIFSN_MASK);
+
+ if (aci == AC_VI && acp_shm.txop == 0
+ && acp_shm.aifs < EDCF_AIFSN_MAX)
+ acp_shm.aifs++;
+
+ if (acp_shm.aifs < EDCF_AIFSN_MIN
+ || acp_shm.aifs > EDCF_AIFSN_MAX) {
+ WL_ERROR("wl%d: wlc_edcf_setparams: bad aifs %d\n",
+ wlc->pub->unit, acp_shm.aifs);
+ continue;
+ }
+
+ /* CWmin = 2^(ECWmin) - 1 */
+ acp_shm.cwmin = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK);
+ /* CWmax = 2^(ECWmax) - 1 */
+ acp_shm.cwmax = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK)
+ >> EDCF_ECWMAX_SHIFT);
+ acp_shm.cwcur = acp_shm.cwmin;
+ acp_shm.bslots =
+ R_REG(wlc->osh, &wlc->regs->tsf_random) & acp_shm.cwcur;
+ acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
+ /* Indicate the new params to the ucode */
+ acp_shm.status = wlc_read_shm(wlc, (M_EDCF_QINFO +
+ wme_shmemacindex(aci) *
+ M_EDCF_QLEN +
+ M_EDCF_STATUS_OFF));
+ acp_shm.status |= WME_STATUS_NEWAC;
+
+ /* Fill in shm acparam table */
+ shm_entry = (u16 *) &acp_shm;
+ for (j = 0; j < (int)sizeof(shm_acparams_t); j += 2)
+ wlc_write_shm(wlc,
+ M_EDCF_QINFO +
+ wme_shmemacindex(aci) * M_EDCF_QLEN + j,
+ *shm_entry++);
+ }
+
+ if (suspend)
+ wlc_suspend_mac_and_wait(wlc);
+
+ if (AP_ENAB(wlc->pub) && WME_ENAB(wlc->pub)) {
+ wlc_update_beacon(wlc);
+ wlc_update_probe_resp(wlc, false);
+ }
+
+ if (suspend)
+ wlc_enable_mac(wlc);
+
+}
+
+bool wlc_timers_init(struct wlc_info *wlc, int unit)
+{
+ wlc->wdtimer = wl_init_timer(wlc->wl, wlc_watchdog_by_timer,
+ wlc, "watchdog");
+ if (!wlc->wdtimer) {
+ WL_ERROR("wl%d: wl_init_timer for wdtimer failed\n", unit);
+ goto fail;
+ }
+
+ wlc->radio_timer = wl_init_timer(wlc->wl, wlc_radio_timer,
+ wlc, "radio");
+ if (!wlc->radio_timer) {
+ WL_ERROR("wl%d: wl_init_timer for radio_timer failed\n", unit);
+ goto fail;
+ }
+
+ return true;
+
+ fail:
+ return false;
+}
+
+/*
+ * Initialize wlc_info default values ...
+ * may get overrides later in this function
+ */
+void wlc_info_init(struct wlc_info *wlc, int unit)
+{
+ int i;
+ /* Assume the device is there until proven otherwise */
+ wlc->device_present = true;
+
+ /* set default power output percentage to 100 percent */
+ wlc->txpwr_percent = 100;
+
+ /* Save our copy of the chanspec */
+ wlc->chanspec = CH20MHZ_CHSPEC(1);
+
+ /* initialize CCK preamble mode to unassociated state */
+ wlc->shortpreamble = false;
+
+ wlc->legacy_probe = true;
+
+ /* various 802.11g modes */
+ wlc->shortslot = false;
+ wlc->shortslot_override = WLC_SHORTSLOT_AUTO;
+
+ wlc->barker_overlap_control = true;
+ wlc->barker_preamble = WLC_BARKER_SHORT_ALLOWED;
+ wlc->txburst_limit_override = AUTO;
+
+ wlc_protection_upd(wlc, WLC_PROT_G_OVR, WLC_PROTECTION_AUTO);
+ wlc_protection_upd(wlc, WLC_PROT_G_SPEC, false);
+
+ wlc_protection_upd(wlc, WLC_PROT_N_CFG_OVR, WLC_PROTECTION_AUTO);
+ wlc_protection_upd(wlc, WLC_PROT_N_CFG, WLC_N_PROTECTION_OFF);
+ wlc_protection_upd(wlc, WLC_PROT_N_NONGF_OVR, WLC_PROTECTION_AUTO);
+ wlc_protection_upd(wlc, WLC_PROT_N_NONGF, false);
+ wlc_protection_upd(wlc, WLC_PROT_N_PAM_OVR, AUTO);
+
+ wlc_protection_upd(wlc, WLC_PROT_OVERLAP, WLC_PROTECTION_CTL_OVERLAP);
+
+ /* 802.11g draft 4.0 NonERP elt advertisement */
+ wlc->include_legacy_erp = true;
+
+ wlc->stf->ant_rx_ovr = ANT_RX_DIV_DEF;
+ wlc->stf->txant = ANT_TX_DEF;
+
+ wlc->prb_resp_timeout = WLC_PRB_RESP_TIMEOUT;
+
+ wlc->usr_fragthresh = DOT11_DEFAULT_FRAG_LEN;
+ for (i = 0; i < NFIFO; i++)
+ wlc->fragthresh[i] = DOT11_DEFAULT_FRAG_LEN;
+ wlc->RTSThresh = DOT11_DEFAULT_RTS_LEN;
+
+ /* default rate fallback retry limits */
+ wlc->SFBL = RETRY_SHORT_FB;
+ wlc->LFBL = RETRY_LONG_FB;
+
+ /* default mac retry limits */
+ wlc->SRL = RETRY_SHORT_DEF;
+ wlc->LRL = RETRY_LONG_DEF;
+
+ /* init PM state */
+ wlc->PM = PM_OFF; /* User's setting of PM mode through IOCTL */
+ wlc->PM_override = false; /* Prevents from going to PM if our AP is 'ill' */
+ wlc->PMenabled = false; /* Current PM state */
+ wlc->PMpending = false; /* Tracks whether STA indicated PM in the last attempt */
+ wlc->PMblocked = false; /* To allow blocking going into PM during RM and scans */
+
+ /* In WMM Auto mode, PM is allowed if association is a UAPSD association */
+ wlc->WME_PM_blocked = false;
+
+ /* Init wme queuing method */
+ wlc->wme_prec_queuing = false;
+
+ /* Overrides for the core to stay awake under zillion conditions Look for STAY_AWAKE */
+ wlc->wake = false;
+ /* Are we waiting for a response to PS-Poll that we sent */
+ wlc->PSpoll = false;
+
+ /* APSD defaults */
+ wlc->wme_apsd = true;
+ wlc->apsd_sta_usp = false;
+ wlc->apsd_trigger_timeout = 0; /* disable the trigger timer */
+ wlc->apsd_trigger_ac = AC_BITMAP_ALL;
+
+ /* Set flag to indicate that hw keys should be used when available. */
+ wlc->wsec_swkeys = false;
+
+ /* init the 4 static WEP default keys */
+ for (i = 0; i < WSEC_MAX_DEFAULT_KEYS; i++) {
+ wlc->wsec_keys[i] = wlc->wsec_def_keys[i];
+ wlc->wsec_keys[i]->idx = (u8) i;
+ }
+
+ wlc->_regulatory_domain = false; /* 802.11d */
+
+ /* WME QoS mode is Auto by default */
+ wlc->pub->_wme = AUTO;
+
+#ifdef BCMSDIODEV_ENABLED
+ wlc->pub->_priofc = true; /* enable priority flow control for sdio dongle */
+#endif
+
+ wlc->pub->_ampdu = AMPDU_AGG_HOST;
+ wlc->pub->bcmerror = 0;
+ wlc->ibss_allowed = true;
+ wlc->ibss_coalesce_allowed = true;
+ wlc->pub->_coex = ON;
+
+ /* intialize mpc delay */
+ wlc->mpc_delay_off = wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
+
+ wlc->pr80838_war = true;
+}
+
+static bool wlc_state_bmac_sync(struct wlc_info *wlc)
+{
+ wlc_bmac_state_t state_bmac;
+
+ if (wlc_bmac_state_get(wlc->hw, &state_bmac) != 0)
+ return false;
+
+ wlc->machwcap = state_bmac.machwcap;
+ wlc_protection_upd(wlc, WLC_PROT_N_PAM_OVR,
+ (s8) state_bmac.preamble_ovr);
+
+ return true;
+}
+
+static uint wlc_attach_module(struct wlc_info *wlc)
+{
+ uint err = 0;
+ uint unit;
+ unit = wlc->pub->unit;
+
+ wlc->asi = wlc_antsel_attach(wlc, wlc->osh, wlc->pub, wlc->hw);
+ if (wlc->asi == NULL) {
+ WL_ERROR("wl%d: wlc_attach: wlc_antsel_attach failed\n", unit);
+ err = 44;
+ goto fail;
+ }
+
+ wlc->ampdu = wlc_ampdu_attach(wlc);
+ if (wlc->ampdu == NULL) {
+ WL_ERROR("wl%d: wlc_attach: wlc_ampdu_attach failed\n", unit);
+ err = 50;
+ goto fail;
+ }
+
+ /* Initialize event queue; needed before following calls */
+ wlc->eventq =
+ wlc_eventq_attach(wlc->pub, wlc, wlc->wl, wlc_process_eventq);
+ if (wlc->eventq == NULL) {
+ WL_ERROR("wl%d: wlc_attach: wlc_eventq_attachfailed\n", unit);
+ err = 57;
+ goto fail;
+ }
+
+ if ((wlc_stf_attach(wlc) != 0)) {
+ WL_ERROR("wl%d: wlc_attach: wlc_stf_attach failed\n", unit);
+ err = 68;
+ goto fail;
+ }
+ fail:
+ return err;
+}
+
+struct wlc_pub *wlc_pub(void *wlc)
+{
+ return ((struct wlc_info *) wlc)->pub;
+}
+
+#define CHIP_SUPPORTS_11N(wlc) 1
+
+/*
+ * The common driver entry routine. Error codes should be unique
+ */
+void *wlc_attach(void *wl, u16 vendor, u16 device, uint unit, bool piomode,
+ struct osl_info *osh, void *regsva, uint bustype,
+ void *btparam, uint *perr)
+{
+ struct wlc_info *wlc;
+ uint err = 0;
+ uint j;
+ struct wlc_pub *pub;
+ wlc_txq_info_t *qi;
+ uint n_disabled;
+
+ WL_NONE("wl%d: %s: vendor 0x%x device 0x%x\n",
+ unit, __func__, vendor, device);
+
+ ASSERT(WSEC_MAX_RCMTA_KEYS <= WSEC_MAX_KEYS);
+ ASSERT(WSEC_MAX_DEFAULT_KEYS == WLC_DEFAULT_KEYS);
+
+ /* some code depends on packed structures */
+ ASSERT(sizeof(struct ether_addr) == ETH_ALEN);
+ ASSERT(sizeof(struct ether_header) == ETH_HLEN);
+ ASSERT(sizeof(d11regs_t) == SI_CORE_SIZE);
+ ASSERT(sizeof(ofdm_phy_hdr_t) == D11_PHY_HDR_LEN);
+ ASSERT(sizeof(cck_phy_hdr_t) == D11_PHY_HDR_LEN);
+ ASSERT(sizeof(d11txh_t) == D11_TXH_LEN);
+ ASSERT(sizeof(d11rxhdr_t) == RXHDR_LEN);
+ ASSERT(sizeof(struct dot11_header) == DOT11_A4_HDR_LEN);
+ ASSERT(sizeof(struct dot11_rts_frame) == DOT11_RTS_LEN);
+ ASSERT(sizeof(struct dot11_management_header) == DOT11_MGMT_HDR_LEN);
+ ASSERT(sizeof(struct dot11_bcn_prb) == DOT11_BCN_PRB_LEN);
+ ASSERT(sizeof(tx_status_t) == TXSTATUS_LEN);
+ ASSERT(sizeof(ht_cap_ie_t) == HT_CAP_IE_LEN);
+#ifdef BRCM_FULLMAC
+ ASSERT(offsetof(wl_scan_params_t, channel_list) ==
+ WL_SCAN_PARAMS_FIXED_SIZE);
+#endif
+ ASSERT(IS_ALIGNED(offsetof(wsec_key_t, data), sizeof(u32)));
+ ASSERT(ISPOWEROF2(MA_WINDOW_SZ));
+
+ ASSERT(sizeof(wlc_d11rxhdr_t) <= WL_HWRXOFF);
+
+ /*
+ * Number of replay counters value used in WPA IE must match # rxivs
+ * supported in wsec_key_t struct. See 802.11i/D3.0 sect. 7.3.2.17
+ * 'RSN Information Element' figure 8 for this mapping.
+ */
+ ASSERT((WPA_CAP_16_REPLAY_CNTRS == WLC_REPLAY_CNTRS_VALUE
+ && 16 == WLC_NUMRXIVS)
+ || (WPA_CAP_4_REPLAY_CNTRS == WLC_REPLAY_CNTRS_VALUE
+ && 4 == WLC_NUMRXIVS));
+
+ /* allocate struct wlc_info state and its substructures */
+ wlc = (struct wlc_info *) wlc_attach_malloc(osh, unit, &err, device);
+ if (wlc == NULL)
+ goto fail;
+ wlc->osh = osh;
+ pub = wlc->pub;
+
+#if defined(BCMDBG)
+ wlc_info_dbg = wlc;
+#endif
+
+ wlc->band = wlc->bandstate[0];
+ wlc->core = wlc->corestate;
+ wlc->wl = wl;
+ pub->unit = unit;
+ pub->osh = osh;
+ wlc->btparam = btparam;
+ pub->_piomode = piomode;
+ wlc->bandinit_pending = false;
+ /* By default restrict TKIP associations from 11n STA's */
+ wlc->ht_wsec_restriction = WLC_HT_TKIP_RESTRICT;
+
+ /* populate struct wlc_info with default values */
+ wlc_info_init(wlc, unit);
+
+ /* update sta/ap related parameters */
+ wlc_ap_upd(wlc);
+
+ /* 11n_disable nvram */
+ n_disabled = getintvar(pub->vars, "11n_disable");
+
+ /* register a module (to handle iovars) */
+ wlc_module_register(wlc->pub, wlc_iovars, "wlc_iovars", wlc,
+ wlc_doiovar, NULL, NULL);
+
+ /* low level attach steps(all hw accesses go inside, no more in rest of the attach) */
+ err = wlc_bmac_attach(wlc, vendor, device, unit, piomode, osh, regsva,
+ bustype, btparam);
+ if (err)
+ goto fail;
+
+ /* for some states, due to different info pointer(e,g, wlc, wlc_hw) or master/slave split,
+ * HIGH driver(both monolithic and HIGH_ONLY) needs to sync states FROM BMAC portion driver
+ */
+ if (!wlc_state_bmac_sync(wlc)) {
+ err = 20;
+ goto fail;
+ }
+
+ pub->phy_11ncapable = WLC_PHY_11N_CAP(wlc->band);
+
+ /* propagate *vars* from BMAC driver to high driver */
+ wlc_bmac_copyfrom_vars(wlc->hw, &pub->vars, &wlc->vars_size);
+
+
+ /* set maximum allowed duty cycle */
+ wlc->tx_duty_cycle_ofdm =
+ (u16) getintvar(pub->vars, "tx_duty_cycle_ofdm");
+ wlc->tx_duty_cycle_cck =
+ (u16) getintvar(pub->vars, "tx_duty_cycle_cck");
+
+ wlc_stf_phy_chain_calc(wlc);
+
+ /* txchain 1: txant 0, txchain 2: txant 1 */
+ if (WLCISNPHY(wlc->band) && (wlc->stf->txstreams == 1))
+ wlc->stf->txant = wlc->stf->hw_txchain - 1;
+
+ /* push to BMAC driver */
+ wlc_phy_stf_chain_init(wlc->band->pi, wlc->stf->hw_txchain,
+ wlc->stf->hw_rxchain);
+
+ /* pull up some info resulting from the low attach */
+ {
+ int i;
+ for (i = 0; i < NFIFO; i++)
+ wlc->core->txavail[i] = wlc->hw->txavail[i];
+ }
+
+ wlc_bmac_hw_etheraddr(wlc->hw, &wlc->perm_etheraddr);
+
+ bcopy((char *)&wlc->perm_etheraddr, (char *)&pub->cur_etheraddr,
+ ETH_ALEN);
+
+ for (j = 0; j < NBANDS(wlc); j++) {
+ /* Use band 1 for single band 11a */
+ if (IS_SINGLEBAND_5G(wlc->deviceid))
+ j = BAND_5G_INDEX;
+
+ wlc->band = wlc->bandstate[j];
+
+ if (!wlc_attach_stf_ant_init(wlc)) {
+ err = 24;
+ goto fail;
+ }
+
+ /* default contention windows size limits */
+ wlc->band->CWmin = APHY_CWMIN;
+ wlc->band->CWmax = PHY_CWMAX;
+
+ /* init gmode value */
+ if (BAND_2G(wlc->band->bandtype)) {
+ wlc->band->gmode = GMODE_AUTO;
+ wlc_protection_upd(wlc, WLC_PROT_G_USER,
+ wlc->band->gmode);
+ }
+
+ /* init _n_enab supported mode */
+ if (WLC_PHY_11N_CAP(wlc->band) && CHIP_SUPPORTS_11N(wlc)) {
+ if (n_disabled & WLFEATURE_DISABLE_11N) {
+ pub->_n_enab = OFF;
+ wlc_protection_upd(wlc, WLC_PROT_N_USER, OFF);
+ } else {
+ pub->_n_enab = SUPPORT_11N;
+ wlc_protection_upd(wlc, WLC_PROT_N_USER,
+ ((pub->_n_enab ==
+ SUPPORT_11N) ? WL_11N_2x2 :
+ WL_11N_3x3));
+ }
+ }
+
+ /* init per-band default rateset, depend on band->gmode */
+ wlc_default_rateset(wlc, &wlc->band->defrateset);
+
+ /* fill in hw_rateset (used early by WLC_SET_RATESET) */
+ wlc_rateset_filter(&wlc->band->defrateset,
+ &wlc->band->hw_rateset, false,
+ WLC_RATES_CCK_OFDM, RATE_MASK,
+ (bool) N_ENAB(wlc->pub));
+ }
+
+ /* update antenna config due to wlc->stf->txant/txchain/ant_rx_ovr change */
+ wlc_stf_phy_txant_upd(wlc);
+
+ /* attach each modules */
+ err = wlc_attach_module(wlc);
+ if (err != 0)
+ goto fail;
+
+ if (!wlc_timers_init(wlc, unit)) {
+ WL_ERROR("wl%d: %s: wlc_init_timer failed\n", unit, __func__);
+ err = 32;
+ goto fail;
+ }
+
+ /* depend on rateset, gmode */
+ wlc->cmi = wlc_channel_mgr_attach(wlc);
+ if (!wlc->cmi) {
+ WL_ERROR("wl%d: %s: wlc_channel_mgr_attach failed\n",
+ unit, __func__);
+ err = 33;
+ goto fail;
+ }
+
+ /* init default when all parameters are ready, i.e. ->rateset */
+ wlc_bss_default_init(wlc);
+
+ /*
+ * Complete the wlc default state initializations..
+ */
+
+ /* allocate our initial queue */
+ qi = wlc_txq_alloc(wlc, osh);
+ if (qi == NULL) {
+ WL_ERROR("wl%d: %s: failed to malloc tx queue\n",
+ unit, __func__);
+ err = 100;
+ goto fail;
+ }
+ wlc->active_queue = qi;
+
+ wlc->bsscfg[0] = wlc->cfg;
+ wlc->cfg->_idx = 0;
+ wlc->cfg->wlc = wlc;
+ pub->txmaxpkts = MAXTXPKTS;
+
+ WLCNTSET(pub->_cnt->version, WL_CNT_T_VERSION);
+ WLCNTSET(pub->_cnt->length, sizeof(wl_cnt_t));
+
+ WLCNTSET(pub->_wme_cnt->version, WL_WME_CNT_VERSION);
+ WLCNTSET(pub->_wme_cnt->length, sizeof(wl_wme_cnt_t));
+
+ wlc_wme_initparams_sta(wlc, &wlc->wme_param_ie);
+
+ wlc->mimoft = FT_HT;
+ wlc->ht_cap.cap = HT_CAP;
+ if (HT_ENAB(wlc->pub))
+ wlc->stf->ldpc = AUTO;
+
+ wlc->mimo_40txbw = AUTO;
+ wlc->ofdm_40txbw = AUTO;
+ wlc->cck_40txbw = AUTO;
+ wlc_update_mimo_band_bwcap(wlc, WLC_N_BW_20IN2G_40IN5G);
+
+ /* Enable setting the RIFS Mode bit by default in HT Info IE */
+ wlc->rifs_advert = AUTO;
+
+ /* Set default values of SGI */
+ if (WLC_SGI_CAP_PHY(wlc)) {
+ wlc_ht_update_sgi_rx(wlc, (WLC_N_SGI_20 | WLC_N_SGI_40));
+ wlc->sgi_tx = AUTO;
+ } else if (WLCISSSLPNPHY(wlc->band)) {
+ wlc_ht_update_sgi_rx(wlc, (WLC_N_SGI_20 | WLC_N_SGI_40));
+ wlc->sgi_tx = AUTO;
+ } else {
+ wlc_ht_update_sgi_rx(wlc, 0);
+ wlc->sgi_tx = OFF;
+ }
+
+ /* *******nvram 11n config overrides Start ********* */
+
+ /* apply the sgi override from nvram conf */
+ if (n_disabled & WLFEATURE_DISABLE_11N_SGI_TX)
+ wlc->sgi_tx = OFF;
+
+ if (n_disabled & WLFEATURE_DISABLE_11N_SGI_RX)
+ wlc_ht_update_sgi_rx(wlc, 0);
+
+ /* apply the stbc override from nvram conf */
+ if (n_disabled & WLFEATURE_DISABLE_11N_STBC_TX) {
+ wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = OFF;
+ wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = OFF;
+ wlc->ht_cap.cap &= ~HT_CAP_TX_STBC;
+ }
+ if (n_disabled & WLFEATURE_DISABLE_11N_STBC_RX)
+ wlc_stf_stbc_rx_set(wlc, HT_CAP_RX_STBC_NO);
+
+ /* apply the GF override from nvram conf */
+ if (n_disabled & WLFEATURE_DISABLE_11N_GF)
+ wlc->ht_cap.cap &= ~HT_CAP_GF;
+
+ /* initialize radio_mpc_disable according to wlc->mpc */
+ wlc_radio_mpc_upd(wlc);
+
+ if (WLANTSEL_ENAB(wlc)) {
+ if ((wlc->pub->sih->chip) == BCM43235_CHIP_ID) {
+ if ((getintvar(wlc->pub->vars, "aa2g") == 7) ||
+ (getintvar(wlc->pub->vars, "aa5g") == 7)) {
+ wlc_bmac_antsel_set(wlc->hw, 1);
+ }
+ } else {
+ wlc_bmac_antsel_set(wlc->hw, wlc->asi->antsel_avail);
+ }
+ }
+
+ if (perr)
+ *perr = 0;
+
+ return (void *)wlc;
+
+ fail:
+ WL_ERROR("wl%d: %s: failed with err %d\n", unit, __func__, err);
+ if (wlc)
+ wlc_detach(wlc);
+
+ if (perr)
+ *perr = err;
+ return NULL;
+}
+
+static void wlc_attach_antgain_init(struct wlc_info *wlc)
+{
+ uint unit;
+ unit = wlc->pub->unit;
+
+ if ((wlc->band->antgain == -1) && (wlc->pub->sromrev == 1)) {
+ /* default antenna gain for srom rev 1 is 2 dBm (8 qdbm) */
+ wlc->band->antgain = 8;
+ } else if (wlc->band->antgain == -1) {
+ WL_ERROR("wl%d: %s: Invalid antennas available in srom, using 2dB\n",
+ unit, __func__);
+ wlc->band->antgain = 8;
+ } else {
+ s8 gain, fract;
+ /* Older sroms specified gain in whole dbm only. In order
+ * be able to specify qdbm granularity and remain backward compatible
+ * the whole dbms are now encoded in only low 6 bits and remaining qdbms
+ * are encoded in the hi 2 bits. 6 bit signed number ranges from
+ * -32 - 31. Examples: 0x1 = 1 db,
+ * 0xc1 = 1.75 db (1 + 3 quarters),
+ * 0x3f = -1 (-1 + 0 quarters),
+ * 0x7f = -.75 (-1 in low 6 bits + 1 quarters in hi 2 bits) = -3 qdbm.
+ * 0xbf = -.50 (-1 in low 6 bits + 2 quarters in hi 2 bits) = -2 qdbm.
+ */
+ gain = wlc->band->antgain & 0x3f;
+ gain <<= 2; /* Sign extend */
+ gain >>= 2;
+ fract = (wlc->band->antgain & 0xc0) >> 6;
+ wlc->band->antgain = 4 * gain + fract;
+ }
+}
+
+static bool wlc_attach_stf_ant_init(struct wlc_info *wlc)
+{
+ int aa;
+ uint unit;
+ char *vars;
+ int bandtype;
+
+ unit = wlc->pub->unit;
+ vars = wlc->pub->vars;
+ bandtype = wlc->band->bandtype;
+
+ /* get antennas available */
+ aa = (s8) getintvar(vars, (BAND_5G(bandtype) ? "aa5g" : "aa2g"));
+ if (aa == 0)
+ aa = (s8) getintvar(vars,
+ (BAND_5G(bandtype) ? "aa1" : "aa0"));
+ if ((aa < 1) || (aa > 15)) {
+ WL_ERROR("wl%d: %s: Invalid antennas available in srom (0x%x), using 3\n",
+ unit, __func__, aa);
+ aa = 3;
+ }
+
+ /* reset the defaults if we have a single antenna */
+ if (aa == 1) {
+ wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_0;
+ wlc->stf->txant = ANT_TX_FORCE_0;
+ } else if (aa == 2) {
+ wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_1;
+ wlc->stf->txant = ANT_TX_FORCE_1;
+ } else {
+ }
+
+ /* Compute Antenna Gain */
+ wlc->band->antgain =
+ (s8) getintvar(vars, (BAND_5G(bandtype) ? "ag1" : "ag0"));
+ wlc_attach_antgain_init(wlc);
+
+ return true;
+}
+
+
+static void wlc_timers_deinit(struct wlc_info *wlc)
+{
+ /* free timer state */
+ if (wlc->wdtimer) {
+ wl_free_timer(wlc->wl, wlc->wdtimer);
+ wlc->wdtimer = NULL;
+ }
+ if (wlc->radio_timer) {
+ wl_free_timer(wlc->wl, wlc->radio_timer);
+ wlc->radio_timer = NULL;
+ }
+}
+
+static void wlc_detach_module(struct wlc_info *wlc)
+{
+ if (wlc->asi) {
+ wlc_antsel_detach(wlc->asi);
+ wlc->asi = NULL;
+ }
+
+ if (wlc->ampdu) {
+ wlc_ampdu_detach(wlc->ampdu);
+ wlc->ampdu = NULL;
+ }
+
+ wlc_stf_detach(wlc);
+}
+
+/*
+ * Return a count of the number of driver callbacks still pending.
+ *
+ * General policy is that wlc_detach can only dealloc/free software states. It can NOT
+ * touch hardware registers since the d11core may be in reset and clock may not be available.
+ * One exception is sb register access, which is possible if crystal is turned on
+ * After "down" state, driver should avoid software timer with the exception of radio_monitor.
+ */
+uint wlc_detach(struct wlc_info *wlc)
+{
+ uint i;
+ uint callbacks = 0;
+
+ if (wlc == NULL)
+ return 0;
+
+ WL_TRACE("wl%d: %s\n", wlc->pub->unit, __func__);
+
+ ASSERT(!wlc->pub->up);
+
+ callbacks += wlc_bmac_detach(wlc);
+
+ /* delete software timers */
+ if (!wlc_radio_monitor_stop(wlc))
+ callbacks++;
+
+ if (wlc->eventq) {
+ wlc_eventq_detach(wlc->eventq);
+ wlc->eventq = NULL;
+ }
+
+ wlc_channel_mgr_detach(wlc->cmi);
+
+ wlc_timers_deinit(wlc);
+
+ wlc_detach_module(wlc);
+
+ /* free other state */
+
+
+#ifdef BCMDBG
+ if (wlc->country_ie_override) {
+ kfree(wlc->country_ie_override);
+ wlc->country_ie_override = NULL;
+ }
+#endif /* BCMDBG */
+
+ {
+ /* free dumpcb list */
+ dumpcb_t *prev, *ptr;
+ prev = ptr = wlc->dumpcb_head;
+ while (ptr) {
+ ptr = prev->next;
+ kfree(prev);
+ prev = ptr;
+ }
+ wlc->dumpcb_head = NULL;
+ }
+
+ /* Detach from iovar manager */
+ wlc_module_unregister(wlc->pub, "wlc_iovars", wlc);
+
+ while (wlc->tx_queues != NULL) {
+ wlc_txq_free(wlc, wlc->osh, wlc->tx_queues);
+ }
+
+ /*
+ * consistency check: wlc_module_register/wlc_module_unregister calls
+ * should match therefore nothing should be left here.
+ */
+ for (i = 0; i < WLC_MAXMODULES; i++)
+ ASSERT(wlc->modulecb[i].name[0] == '\0');
+
+ wlc_detach_mfree(wlc, wlc->osh);
+ return callbacks;
+}
+
+/* update state that depends on the current value of "ap" */
+void wlc_ap_upd(struct wlc_info *wlc)
+{
+ if (AP_ENAB(wlc->pub))
+ wlc->PLCPHdr_override = WLC_PLCP_AUTO; /* AP: short not allowed, but not enforced */
+ else
+ wlc->PLCPHdr_override = WLC_PLCP_SHORT; /* STA-BSS; short capable */
+
+ /* disable vlan_mode on AP since some legacy STAs cannot rx tagged pkts */
+ wlc->vlan_mode = AP_ENAB(wlc->pub) ? OFF : AUTO;
+
+ /* fixup mpc */
+ wlc->mpc = true;
+}
+
+/* read hwdisable state and propagate to wlc flag */
+static void wlc_radio_hwdisable_upd(struct wlc_info *wlc)
+{
+ if (wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO || wlc->pub->hw_off)
+ return;
+
+ if (wlc_bmac_radio_read_hwdisabled(wlc->hw)) {
+ mboolset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
+ } else {
+ mboolclr(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
+ }
+}
+
+/* return true if Minimum Power Consumption should be entered, false otherwise */
+bool wlc_is_non_delay_mpc(struct wlc_info *wlc)
+{
+ return false;
+}
+
+bool wlc_ismpc(struct wlc_info *wlc)
+{
+ return (wlc->mpc_delay_off == 0) && (wlc_is_non_delay_mpc(wlc));
+}
+
+void wlc_radio_mpc_upd(struct wlc_info *wlc)
+{
+ bool mpc_radio, radio_state;
+
+ /*
+ * Clear the WL_RADIO_MPC_DISABLE bit when mpc feature is disabled
+ * in case the WL_RADIO_MPC_DISABLE bit was set. Stop the radio
+ * monitor also when WL_RADIO_MPC_DISABLE is the only reason that
+ * the radio is going down.
+ */
+ if (!wlc->mpc) {
+ if (!wlc->pub->radio_disabled)
+ return;
+ mboolclr(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE);
+ wlc_radio_upd(wlc);
+ if (!wlc->pub->radio_disabled)
+ wlc_radio_monitor_stop(wlc);
+ return;
+ }
+
+ /*
+ * sync ismpc logic with WL_RADIO_MPC_DISABLE bit in wlc->pub->radio_disabled
+ * to go ON, always call radio_upd synchronously
+ * to go OFF, postpone radio_upd to later when context is safe(e.g. watchdog)
+ */
+ radio_state =
+ (mboolisset(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE) ? OFF :
+ ON);
+ mpc_radio = (wlc_ismpc(wlc) == true) ? OFF : ON;
+
+ if (radio_state == ON && mpc_radio == OFF)
+ wlc->mpc_delay_off = wlc->mpc_dlycnt;
+ else if (radio_state == OFF && mpc_radio == ON) {
+ mboolclr(wlc->pub->radio_disabled, WL_RADIO_MPC_DISABLE);
+ wlc_radio_upd(wlc);
+ if (wlc->mpc_offcnt < WLC_MPC_THRESHOLD) {
+ wlc->mpc_dlycnt = WLC_MPC_MAX_DELAYCNT;
+ } else
+ wlc->mpc_dlycnt = WLC_MPC_MIN_DELAYCNT;
+ wlc->mpc_dur += OSL_SYSUPTIME() - wlc->mpc_laston_ts;
+ }
+ /* Below logic is meant to capture the transition from mpc off to mpc on for reasons
+ * other than wlc->mpc_delay_off keeping the mpc off. In that case reset
+ * wlc->mpc_delay_off to wlc->mpc_dlycnt, so that we restart the countdown of mpc_delay_off
+ */
+ if ((wlc->prev_non_delay_mpc == false) &&
+ (wlc_is_non_delay_mpc(wlc) == true) && wlc->mpc_delay_off) {
+ wlc->mpc_delay_off = wlc->mpc_dlycnt;
+ }
+ wlc->prev_non_delay_mpc = wlc_is_non_delay_mpc(wlc);
+}
+
+/*
+ * centralized radio disable/enable function,
+ * invoke radio enable/disable after updating hwradio status
+ */
+static void wlc_radio_upd(struct wlc_info *wlc)
+{
+ if (wlc->pub->radio_disabled)
+ wlc_radio_disable(wlc);
+ else
+ wlc_radio_enable(wlc);
+}
+
+/* maintain LED behavior in down state */
+static void wlc_down_led_upd(struct wlc_info *wlc)
+{
+ ASSERT(!wlc->pub->up);
+
+ /* maintain LEDs while in down state, turn on sbclk if not available yet */
+ /* turn on sbclk if necessary */
+ if (!AP_ENAB(wlc->pub)) {
+ wlc_pllreq(wlc, true, WLC_PLLREQ_FLIP);
+
+ wlc_pllreq(wlc, false, WLC_PLLREQ_FLIP);
+ }
+}
+
+void wlc_radio_disable(struct wlc_info *wlc)
+{
+ if (!wlc->pub->up) {
+ wlc_down_led_upd(wlc);
+ return;
+ }
+
+ wlc_radio_monitor_start(wlc);
+ wl_down(wlc->wl);
+}
+
+static void wlc_radio_enable(struct wlc_info *wlc)
+{
+ if (wlc->pub->up)
+ return;
+
+ if (DEVICEREMOVED(wlc))
+ return;
+
+ if (!wlc->down_override) { /* imposed by wl down/out ioctl */
+ wl_up(wlc->wl);
+ }
+}
+
+/* periodical query hw radio button while driver is "down" */
+static void wlc_radio_timer(void *arg)
+{
+ struct wlc_info *wlc = (struct wlc_info *) arg;
+
+ if (DEVICEREMOVED(wlc)) {
+ WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
+ wl_down(wlc->wl);
+ return;
+ }
+
+ /* cap mpc off count */
+ if (wlc->mpc_offcnt < WLC_MPC_MAX_DELAYCNT)
+ wlc->mpc_offcnt++;
+
+ /* validate all the reasons driver could be down and running this radio_timer */
+ ASSERT(wlc->pub->radio_disabled || wlc->down_override);
+ wlc_radio_hwdisable_upd(wlc);
+ wlc_radio_upd(wlc);
+}
+
+static bool wlc_radio_monitor_start(struct wlc_info *wlc)
+{
+ /* Don't start the timer if HWRADIO feature is disabled */
+ if (wlc->radio_monitor || (wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO))
+ return true;
+
+ wlc->radio_monitor = true;
+ wlc_pllreq(wlc, true, WLC_PLLREQ_RADIO_MON);
+ wl_add_timer(wlc->wl, wlc->radio_timer, TIMER_INTERVAL_RADIOCHK, true);
+ return true;
+}
+
+bool wlc_radio_monitor_stop(struct wlc_info *wlc)
+{
+ if (!wlc->radio_monitor)
+ return true;
+
+ ASSERT((wlc->pub->wlfeatureflag & WL_SWFL_NOHWRADIO) !=
+ WL_SWFL_NOHWRADIO);
+
+ wlc->radio_monitor = false;
+ wlc_pllreq(wlc, false, WLC_PLLREQ_RADIO_MON);
+ return wl_del_timer(wlc->wl, wlc->radio_timer);
+}
+
+/* bring the driver down, but don't reset hardware */
+void wlc_out(struct wlc_info *wlc)
+{
+ wlc_bmac_set_noreset(wlc->hw, true);
+ wlc_radio_upd(wlc);
+ wl_down(wlc->wl);
+ wlc_bmac_set_noreset(wlc->hw, false);
+
+ /* core clk is true in BMAC driver due to noreset, need to mirror it in HIGH */
+ wlc->clk = true;
+
+ /* This will make sure that when 'up' is done
+ * after 'out' it'll restore hardware (especially gpios)
+ */
+ wlc->pub->hw_up = false;
+}
+
+#if defined(BCMDBG)
+/* Verify the sanity of wlc->tx_prec_map. This can be done only by making sure that
+ * if there is no packet pending for the FIFO, then the corresponding prec bits should be set
+ * in prec_map. Of course, ignore this rule when block_datafifo is set
+ */
+static bool wlc_tx_prec_map_verify(struct wlc_info *wlc)
+{
+ /* For non-WME, both fifos have overlapping prec_map. So it's an error only if both
+ * fail the check.
+ */
+ if (!EDCF_ENAB(wlc->pub)) {
+ if (!(WLC_TX_FIFO_CHECK(wlc, TX_DATA_FIFO) ||
+ WLC_TX_FIFO_CHECK(wlc, TX_CTL_FIFO)))
+ return false;
+ else
+ return true;
+ }
+
+ return WLC_TX_FIFO_CHECK(wlc, TX_AC_BK_FIFO)
+ && WLC_TX_FIFO_CHECK(wlc, TX_AC_BE_FIFO)
+ && WLC_TX_FIFO_CHECK(wlc, TX_AC_VI_FIFO)
+ && WLC_TX_FIFO_CHECK(wlc, TX_AC_VO_FIFO);
+}
+#endif /* BCMDBG */
+
+static void wlc_watchdog_by_timer(void *arg)
+{
+ struct wlc_info *wlc = (struct wlc_info *) arg;
+ wlc_watchdog(arg);
+ if (WLC_WATCHDOG_TBTT(wlc)) {
+ /* set to normal osl watchdog period */
+ wl_del_timer(wlc->wl, wlc->wdtimer);
+ wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG,
+ true);
+ }
+}
+
+/* common watchdog code */
+static void wlc_watchdog(void *arg)
+{
+ struct wlc_info *wlc = (struct wlc_info *) arg;
+ int i;
+ wlc_bsscfg_t *cfg;
+
+ WL_TRACE("wl%d: wlc_watchdog\n", wlc->pub->unit);
+
+ if (!wlc->pub->up)
+ return;
+
+ if (DEVICEREMOVED(wlc)) {
+ WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
+ wl_down(wlc->wl);
+ return;
+ }
+
+ /* increment second count */
+ wlc->pub->now++;
+
+ /* delay radio disable */
+ if (wlc->mpc_delay_off) {
+ if (--wlc->mpc_delay_off == 0) {
+ mboolset(wlc->pub->radio_disabled,
+ WL_RADIO_MPC_DISABLE);
+ if (wlc->mpc && wlc_ismpc(wlc))
+ wlc->mpc_offcnt = 0;
+ wlc->mpc_laston_ts = OSL_SYSUPTIME();
+ }
+ }
+
+ /* mpc sync */
+ wlc_radio_mpc_upd(wlc);
+ /* radio sync: sw/hw/mpc --> radio_disable/radio_enable */
+ wlc_radio_hwdisable_upd(wlc);
+ wlc_radio_upd(wlc);
+ /* if ismpc, driver should be in down state if up/down is allowed */
+ if (wlc->mpc && wlc_ismpc(wlc))
+ ASSERT(!wlc->pub->up);
+ /* if radio is disable, driver may be down, quit here */
+ if (wlc->pub->radio_disabled)
+ return;
+
+ wlc_bmac_watchdog(wlc);
+
+ /* occasionally sample mac stat counters to detect 16-bit counter wrap */
+ if ((WLC_UPDATE_STATS(wlc))
+ && (!(wlc->pub->now % SW_TIMER_MAC_STAT_UPD)))
+ wlc_statsupd(wlc);
+
+ /* Manage TKIP countermeasures timers */
+ FOREACH_BSS(wlc, i, cfg) {
+ if (cfg->tk_cm_dt) {
+ cfg->tk_cm_dt--;
+ }
+ if (cfg->tk_cm_bt) {
+ cfg->tk_cm_bt--;
+ }
+ }
+
+ /* Call any registered watchdog handlers */
+ for (i = 0; i < WLC_MAXMODULES; i++) {
+ if (wlc->modulecb[i].watchdog_fn)
+ wlc->modulecb[i].watchdog_fn(wlc->modulecb[i].hdl);
+ }
+
+ if (WLCISNPHY(wlc->band) && !wlc->pub->tempsense_disable &&
+ ((wlc->pub->now - wlc->tempsense_lasttime) >=
+ WLC_TEMPSENSE_PERIOD)) {
+ wlc->tempsense_lasttime = wlc->pub->now;
+ wlc_tempsense_upd(wlc);
+ }
+ /* BMAC_NOTE: for HIGH_ONLY driver, this seems being called after RPC bus failed */
+ ASSERT(wlc_bmac_taclear(wlc->hw, true));
+
+ /* Verify that tx_prec_map and fifos are in sync to avoid lock ups */
+ ASSERT(wlc_tx_prec_map_verify(wlc));
+
+ ASSERT(wlc_ps_check(wlc));
+}
+
+/* make interface operational */
+int wlc_up(struct wlc_info *wlc)
+{
+ WL_TRACE("wl%d: %s:\n", wlc->pub->unit, __func__);
+
+ /* HW is turned off so don't try to access it */
+ if (wlc->pub->hw_off || DEVICEREMOVED(wlc))
+ return BCME_RADIOOFF;
+
+ if (!wlc->pub->hw_up) {
+ wlc_bmac_hw_up(wlc->hw);
+ wlc->pub->hw_up = true;
+ }
+
+ if ((wlc->pub->boardflags & BFL_FEM)
+ && (wlc->pub->sih->chip == BCM4313_CHIP_ID)) {
+ if (wlc->pub->boardrev >= 0x1250
+ && (wlc->pub->boardflags & BFL_FEM_BT)) {
+ wlc_mhf(wlc, MHF5, MHF5_4313_GPIOCTRL,
+ MHF5_4313_GPIOCTRL, WLC_BAND_ALL);
+ } else {
+ wlc_mhf(wlc, MHF4, MHF4_EXTPA_ENABLE, MHF4_EXTPA_ENABLE,
+ WLC_BAND_ALL);
+ }
+ }
+
+ /*
+ * Need to read the hwradio status here to cover the case where the system
+ * is loaded with the hw radio disabled. We do not want to bring the driver up in this case.
+ * if radio is disabled, abort up, lower power, start radio timer and return 0(for NDIS)
+ * don't call radio_update to avoid looping wlc_up.
+ *
+ * wlc_bmac_up_prep() returns either 0 or BCME_RADIOOFF only
+ */
+ if (!wlc->pub->radio_disabled) {
+ int status = wlc_bmac_up_prep(wlc->hw);
+ if (status == BCME_RADIOOFF) {
+ if (!mboolisset
+ (wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE)) {
+ int idx;
+ wlc_bsscfg_t *bsscfg;
+ mboolset(wlc->pub->radio_disabled,
+ WL_RADIO_HW_DISABLE);
+
+ FOREACH_BSS(wlc, idx, bsscfg) {
+ if (!BSSCFG_STA(bsscfg)
+ || !bsscfg->enable || !bsscfg->BSS)
+ continue;
+ WL_ERROR("wl%d.%d: wlc_up: rfdisable -> " "wlc_bsscfg_disable()\n",
+ wlc->pub->unit, idx);
+ }
+ }
+ } else
+ ASSERT(!status);
+ }
+
+ if (wlc->pub->radio_disabled) {
+ wlc_radio_monitor_start(wlc);
+ return 0;
+ }
+
+ /* wlc_bmac_up_prep has done wlc_corereset(). so clk is on, set it */
+ wlc->clk = true;
+
+ wlc_radio_monitor_stop(wlc);
+
+ /* Set EDCF hostflags */
+ if (EDCF_ENAB(wlc->pub)) {
+ wlc_mhf(wlc, MHF1, MHF1_EDCF, MHF1_EDCF, WLC_BAND_ALL);
+ } else {
+ wlc_mhf(wlc, MHF1, MHF1_EDCF, 0, WLC_BAND_ALL);
+ }
+
+ if (WLC_WAR16165(wlc))
+ wlc_mhf(wlc, MHF2, MHF2_PCISLOWCLKWAR, MHF2_PCISLOWCLKWAR,
+ WLC_BAND_ALL);
+
+ wl_init(wlc->wl);
+ wlc->pub->up = true;
+
+ if (wlc->bandinit_pending) {
+ wlc_suspend_mac_and_wait(wlc);
+ wlc_set_chanspec(wlc, wlc->default_bss->chanspec);
+ wlc->bandinit_pending = false;
+ wlc_enable_mac(wlc);
+ }
+
+ wlc_bmac_up_finish(wlc->hw);
+
+ /* other software states up after ISR is running */
+ /* start APs that were to be brought up but are not up yet */
+ /* if (AP_ENAB(wlc->pub)) wlc_restart_ap(wlc->ap); */
+
+ /* Program the TX wme params with the current settings */
+ wlc_wme_retries_write(wlc);
+
+ /* start one second watchdog timer */
+ ASSERT(!wlc->WDarmed);
+ wl_add_timer(wlc->wl, wlc->wdtimer, TIMER_INTERVAL_WATCHDOG, true);
+ wlc->WDarmed = true;
+
+ /* ensure antenna config is up to date */
+ wlc_stf_phy_txant_upd(wlc);
+ /* ensure LDPC config is in sync */
+ wlc_ht_update_ldpc(wlc, wlc->stf->ldpc);
+
+ return 0;
+}
+
+/* Initialize the base precedence map for dequeueing from txq based on WME settings */
+static void wlc_tx_prec_map_init(struct wlc_info *wlc)
+{
+ wlc->tx_prec_map = WLC_PREC_BMP_ALL;
+ memset(wlc->fifo2prec_map, 0, NFIFO * sizeof(u16));
+
+ /* For non-WME, both fifos have overlapping MAXPRIO. So just disable all precedences
+ * if either is full.
+ */
+ if (!EDCF_ENAB(wlc->pub)) {
+ wlc->fifo2prec_map[TX_DATA_FIFO] = WLC_PREC_BMP_ALL;
+ wlc->fifo2prec_map[TX_CTL_FIFO] = WLC_PREC_BMP_ALL;
+ } else {
+ wlc->fifo2prec_map[TX_AC_BK_FIFO] = WLC_PREC_BMP_AC_BK;
+ wlc->fifo2prec_map[TX_AC_BE_FIFO] = WLC_PREC_BMP_AC_BE;
+ wlc->fifo2prec_map[TX_AC_VI_FIFO] = WLC_PREC_BMP_AC_VI;
+ wlc->fifo2prec_map[TX_AC_VO_FIFO] = WLC_PREC_BMP_AC_VO;
+ }
+}
+
+static uint wlc_down_del_timer(struct wlc_info *wlc)
+{
+ uint callbacks = 0;
+
+ return callbacks;
+}
+
+/*
+ * Mark the interface nonoperational, stop the software mechanisms,
+ * disable the hardware, free any transient buffer state.
+ * Return a count of the number of driver callbacks still pending.
+ */
+uint wlc_down(struct wlc_info *wlc)
+{
+
+ uint callbacks = 0;
+ int i;
+ bool dev_gone = false;
+ wlc_txq_info_t *qi;
+
+ WL_TRACE("wl%d: %s:\n", wlc->pub->unit, __func__);
+
+ /* check if we are already in the going down path */
+ if (wlc->going_down) {
+ WL_ERROR("wl%d: %s: Driver going down so return\n",
+ wlc->pub->unit, __func__);
+ return 0;
+ }
+ if (!wlc->pub->up)
+ return callbacks;
+
+ /* in between, mpc could try to bring down again.. */
+ wlc->going_down = true;
+
+ callbacks += wlc_bmac_down_prep(wlc->hw);
+
+ dev_gone = DEVICEREMOVED(wlc);
+
+ /* Call any registered down handlers */
+ for (i = 0; i < WLC_MAXMODULES; i++) {
+ if (wlc->modulecb[i].down_fn)
+ callbacks +=
+ wlc->modulecb[i].down_fn(wlc->modulecb[i].hdl);
+ }
+
+ /* cancel the watchdog timer */
+ if (wlc->WDarmed) {
+ if (!wl_del_timer(wlc->wl, wlc->wdtimer))
+ callbacks++;
+ wlc->WDarmed = false;
+ }
+ /* cancel all other timers */
+ callbacks += wlc_down_del_timer(wlc);
+
+ /* interrupt must have been blocked */
+ ASSERT((wlc->macintmask == 0) || !wlc->pub->up);
+
+ wlc->pub->up = false;
+
+ wlc_phy_mute_upd(wlc->band->pi, false, PHY_MUTE_ALL);
+
+ /* clear txq flow control */
+ wlc_txflowcontrol_reset(wlc);
+
+ /* flush tx queues */
+ for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
+ pktq_flush(wlc->osh, &qi->q, true, NULL, 0);
+ ASSERT(pktq_empty(&qi->q));
+ }
+
+ /* flush event queue.
+ * Should be the last thing done after all the events are generated
+ * Just delivers the events synchronously instead of waiting for a timer
+ */
+ callbacks += wlc_eventq_down(wlc->eventq);
+
+ callbacks += wlc_bmac_down_finish(wlc->hw);
+
+ /* wlc_bmac_down_finish has done wlc_coredisable(). so clk is off */
+ wlc->clk = false;
+
+
+ /* Verify all packets are flushed from the driver */
+ if (wlc->osh->pktalloced != 0) {
+ WL_ERROR("%d packets not freed at wlc_down!!!!!!\n",
+ wlc->osh->pktalloced);
+ }
+#ifdef BCMDBG
+ /* Since all the packets should have been freed,
+ * all callbacks should have been called
+ */
+ for (i = 1; i <= wlc->pub->tunables->maxpktcb; i++)
+ ASSERT(wlc->pkt_callback[i].fn == NULL);
+#endif
+ wlc->going_down = false;
+ return callbacks;
+}
+
+/* Set the current gmode configuration */
+int wlc_set_gmode(struct wlc_info *wlc, u8 gmode, bool config)
+{
+ int ret = 0;
+ uint i;
+ wlc_rateset_t rs;
+ /* Default to 54g Auto */
+ s8 shortslot = WLC_SHORTSLOT_AUTO; /* Advertise and use shortslot (-1/0/1 Auto/Off/On) */
+ bool shortslot_restrict = false; /* Restrict association to stations that support shortslot
+ */
+ bool ignore_bcns = true; /* Ignore legacy beacons on the same channel */
+ bool ofdm_basic = false; /* Make 6, 12, and 24 basic rates */
+ int preamble = WLC_PLCP_LONG; /* Advertise and use short preambles (-1/0/1 Auto/Off/On) */
+ bool preamble_restrict = false; /* Restrict association to stations that support short
+ * preambles
+ */
+ struct wlcband *band;
+
+ /* if N-support is enabled, allow Gmode set as long as requested
+ * Gmode is not GMODE_LEGACY_B
+ */
+ if (N_ENAB(wlc->pub) && gmode == GMODE_LEGACY_B)
+ return BCME_UNSUPPORTED;
+
+ /* verify that we are dealing with 2G band and grab the band pointer */
+ if (wlc->band->bandtype == WLC_BAND_2G)
+ band = wlc->band;
+ else if ((NBANDS(wlc) > 1) &&
+ (wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype == WLC_BAND_2G))
+ band = wlc->bandstate[OTHERBANDUNIT(wlc)];
+ else
+ return BCME_BADBAND;
+
+ /* Legacy or bust when no OFDM is supported by regulatory */
+ if ((wlc_channel_locale_flags_in_band(wlc->cmi, band->bandunit) &
+ WLC_NO_OFDM) && (gmode != GMODE_LEGACY_B))
+ return BCME_RANGE;
+
+ /* update configuration value */
+ if (config == true)
+ wlc_protection_upd(wlc, WLC_PROT_G_USER, gmode);
+
+ /* Clear supported rates filter */
+ memset(&wlc->sup_rates_override, 0, sizeof(wlc_rateset_t));
+
+ /* Clear rateset override */
+ memset(&rs, 0, sizeof(wlc_rateset_t));
+
+ switch (gmode) {
+ case GMODE_LEGACY_B:
+ shortslot = WLC_SHORTSLOT_OFF;
+ wlc_rateset_copy(&gphy_legacy_rates, &rs);
+
+ break;
+
+ case GMODE_LRS:
+ if (AP_ENAB(wlc->pub))
+ wlc_rateset_copy(&cck_rates, &wlc->sup_rates_override);
+ break;
+
+ case GMODE_AUTO:
+ /* Accept defaults */
+ break;
+
+ case GMODE_ONLY:
+ ofdm_basic = true;
+ preamble = WLC_PLCP_SHORT;
+ preamble_restrict = true;
+ break;
+
+ case GMODE_PERFORMANCE:
+ if (AP_ENAB(wlc->pub)) /* Put all rates into the Supported Rates element */
+ wlc_rateset_copy(&cck_ofdm_rates,
+ &wlc->sup_rates_override);
+
+ shortslot = WLC_SHORTSLOT_ON;
+ shortslot_restrict = true;
+ ofdm_basic = true;
+ preamble = WLC_PLCP_SHORT;
+ preamble_restrict = true;
+ break;
+
+ default:
+ /* Error */
+ WL_ERROR("wl%d: %s: invalid gmode %d\n",
+ wlc->pub->unit, __func__, gmode);
+ return BCME_UNSUPPORTED;
+ }
+
+ /*
+ * If we are switching to gmode == GMODE_LEGACY_B,
+ * clean up rate info that may refer to OFDM rates.
+ */
+ if ((gmode == GMODE_LEGACY_B) && (band->gmode != GMODE_LEGACY_B)) {
+ band->gmode = gmode;
+ if (band->rspec_override && !IS_CCK(band->rspec_override)) {
+ band->rspec_override = 0;
+ wlc_reprate_init(wlc);
+ }
+ if (band->mrspec_override && !IS_CCK(band->mrspec_override)) {
+ band->mrspec_override = 0;
+ }
+ }
+
+ band->gmode = gmode;
+
+ wlc->ignore_bcns = ignore_bcns;
+
+ wlc->shortslot_override = shortslot;
+
+ if (AP_ENAB(wlc->pub)) {
+ /* wlc->ap->shortslot_restrict = shortslot_restrict; */
+ wlc->PLCPHdr_override =
+ (preamble !=
+ WLC_PLCP_LONG) ? WLC_PLCP_SHORT : WLC_PLCP_AUTO;
+ }
+
+ if ((AP_ENAB(wlc->pub) && preamble != WLC_PLCP_LONG)
+ || preamble == WLC_PLCP_SHORT)
+ wlc->default_bss->capability |= DOT11_CAP_SHORT;
+ else
+ wlc->default_bss->capability &= ~DOT11_CAP_SHORT;
+
+ /* Update shortslot capability bit for AP and IBSS */
+ if ((AP_ENAB(wlc->pub) && shortslot == WLC_SHORTSLOT_AUTO) ||
+ shortslot == WLC_SHORTSLOT_ON)
+ wlc->default_bss->capability |= DOT11_CAP_SHORTSLOT;
+ else
+ wlc->default_bss->capability &= ~DOT11_CAP_SHORTSLOT;
+
+ /* Use the default 11g rateset */
+ if (!rs.count)
+ wlc_rateset_copy(&cck_ofdm_rates, &rs);
+
+ if (ofdm_basic) {
+ for (i = 0; i < rs.count; i++) {
+ if (rs.rates[i] == WLC_RATE_6M
+ || rs.rates[i] == WLC_RATE_12M
+ || rs.rates[i] == WLC_RATE_24M)
+ rs.rates[i] |= WLC_RATE_FLAG;
+ }
+ }
+
+ /* Set default bss rateset */
+ wlc->default_bss->rateset.count = rs.count;
+ bcopy((char *)rs.rates, (char *)wlc->default_bss->rateset.rates,
+ sizeof(wlc->default_bss->rateset.rates));
+
+ return ret;
+}
+
+static int wlc_nmode_validate(struct wlc_info *wlc, s32 nmode)
+{
+ int err = 0;
+
+ switch (nmode) {
+
+ case OFF:
+ break;
+
+ case AUTO:
+ case WL_11N_2x2:
+ case WL_11N_3x3:
+ if (!(WLC_PHY_11N_CAP(wlc->band)))
+ err = BCME_BADBAND;
+ break;
+
+ default:
+ err = BCME_RANGE;
+ break;
+ }
+
+ return err;
+}
+
+int wlc_set_nmode(struct wlc_info *wlc, s32 nmode)
+{
+ uint i;
+ int err;
+
+ err = wlc_nmode_validate(wlc, nmode);
+ ASSERT(err == 0);
+ if (err)
+ return err;
+
+ switch (nmode) {
+ case OFF:
+ wlc->pub->_n_enab = OFF;
+ wlc->default_bss->flags &= ~WLC_BSS_HT;
+ /* delete the mcs rates from the default and hw ratesets */
+ wlc_rateset_mcs_clear(&wlc->default_bss->rateset);
+ for (i = 0; i < NBANDS(wlc); i++) {
+ memset(wlc->bandstate[i]->hw_rateset.mcs, 0,
+ MCSSET_LEN);
+ if (IS_MCS(wlc->band->rspec_override)) {
+ wlc->bandstate[i]->rspec_override = 0;
+ wlc_reprate_init(wlc);
+ }
+ if (IS_MCS(wlc->band->mrspec_override))
+ wlc->bandstate[i]->mrspec_override = 0;
+ }
+ break;
+
+ case AUTO:
+ if (wlc->stf->txstreams == WL_11N_3x3)
+ nmode = WL_11N_3x3;
+ else
+ nmode = WL_11N_2x2;
+ case WL_11N_2x2:
+ case WL_11N_3x3:
+ ASSERT(WLC_PHY_11N_CAP(wlc->band));
+ /* force GMODE_AUTO if NMODE is ON */
+ wlc_set_gmode(wlc, GMODE_AUTO, true);
+ if (nmode == WL_11N_3x3)
+ wlc->pub->_n_enab = SUPPORT_HT;
+ else
+ wlc->pub->_n_enab = SUPPORT_11N;
+ wlc->default_bss->flags |= WLC_BSS_HT;
+ /* add the mcs rates to the default and hw ratesets */
+ wlc_rateset_mcs_build(&wlc->default_bss->rateset,
+ wlc->stf->txstreams);
+ for (i = 0; i < NBANDS(wlc); i++)
+ memcpy(wlc->bandstate[i]->hw_rateset.mcs,
+ wlc->default_bss->rateset.mcs, MCSSET_LEN);
+ break;
+
+ default:
+ ASSERT(0);
+ break;
+ }
+
+ return err;
+}
+
+static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg)
+{
+ wlc_rateset_t rs, new;
+ uint bandunit;
+
+ bcopy((char *)rs_arg, (char *)&rs, sizeof(wlc_rateset_t));
+
+ /* check for bad count value */
+ if ((rs.count == 0) || (rs.count > WLC_NUMRATES))
+ return BCME_BADRATESET;
+
+ /* try the current band */
+ bandunit = wlc->band->bandunit;
+ bcopy((char *)&rs, (char *)&new, sizeof(wlc_rateset_t));
+ if (wlc_rate_hwrs_filter_sort_validate
+ (&new, &wlc->bandstate[bandunit]->hw_rateset, true,
+ wlc->stf->txstreams))
+ goto good;
+
+ /* try the other band */
+ if (IS_MBAND_UNLOCKED(wlc)) {
+ bandunit = OTHERBANDUNIT(wlc);
+ bcopy((char *)&rs, (char *)&new, sizeof(wlc_rateset_t));
+ if (wlc_rate_hwrs_filter_sort_validate(&new,
+ &wlc->
+ bandstate[bandunit]->
+ hw_rateset, true,
+ wlc->stf->txstreams))
+ goto good;
+ }
+
+ return BCME_ERROR;
+
+ good:
+ /* apply new rateset */
+ bcopy((char *)&new, (char *)&wlc->default_bss->rateset,
+ sizeof(wlc_rateset_t));
+ bcopy((char *)&new, (char *)&wlc->bandstate[bandunit]->defrateset,
+ sizeof(wlc_rateset_t));
+ return 0;
+}
+
+/* simplified integer set interface for common ioctl handler */
+int wlc_set(struct wlc_info *wlc, int cmd, int arg)
+{
+ return wlc_ioctl(wlc, cmd, (void *)&arg, sizeof(arg), NULL);
+}
+
+/* simplified integer get interface for common ioctl handler */
+int wlc_get(struct wlc_info *wlc, int cmd, int *arg)
+{
+ return wlc_ioctl(wlc, cmd, arg, sizeof(int), NULL);
+}
+
+static void wlc_ofdm_rateset_war(struct wlc_info *wlc)
+{
+ u8 r;
+ bool war = false;
+
+ if (wlc->cfg->associated)
+ r = wlc->cfg->current_bss->rateset.rates[0];
+ else
+ r = wlc->default_bss->rateset.rates[0];
+
+ wlc_phy_ofdm_rateset_war(wlc->band->pi, war);
+
+ return;
+}
+
+int
+wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
+ struct wlc_if *wlcif)
+{
+ return _wlc_ioctl(wlc, cmd, arg, len, wlcif);
+}
+
+/* common ioctl handler. return: 0=ok, -1=error, positive=particular error */
+static int
+_wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len,
+ struct wlc_if *wlcif)
+{
+ int val, *pval;
+ bool bool_val;
+ int bcmerror;
+ d11regs_t *regs;
+ uint i;
+ struct scb *nextscb;
+ bool ta_ok;
+ uint band;
+ rw_reg_t *r;
+ wlc_bsscfg_t *bsscfg;
+ struct osl_info *osh;
+ wlc_bss_info_t *current_bss;
+
+ /* update bsscfg pointer */
+ bsscfg = NULL; /* XXX: Hack bsscfg to be size one and use this globally */
+ current_bss = NULL;
+
+ /* initialize the following to get rid of compiler warning */
+ nextscb = NULL;
+ ta_ok = false;
+ band = 0;
+ r = NULL;
+
+ /* If the device is turned off, then it's not "removed" */
+ if (!wlc->pub->hw_off && DEVICEREMOVED(wlc)) {
+ WL_ERROR("wl%d: %s: dead chip\n", wlc->pub->unit, __func__);
+ wl_down(wlc->wl);
+ return BCME_ERROR;
+ }
+
+ ASSERT(!(wlc->pub->hw_off && wlc->pub->up));
+
+ /* default argument is generic integer */
+ pval = arg ? (int *)arg:NULL;
+
+ /* This will prevent the misaligned access */
+ if (pval && (u32) len >= sizeof(val))
+ bcopy(pval, &val, sizeof(val));
+ else
+ val = 0;
+
+ /* bool conversion to avoid duplication below */
+ bool_val = val != 0;
+
+ if (cmd != WLC_SET_CHANNEL)
+ WL_NONE("WLC_IOCTL: cmd %d val 0x%x (%d) len %d\n",
+ cmd, (uint)val, val, len);
+
+ bcmerror = 0;
+ regs = wlc->regs;
+ osh = wlc->osh;
+
+ /* A few commands don't need any arguments; all the others do. */
+ switch (cmd) {
+ case WLC_UP:
+ case WLC_OUT:
+ case WLC_DOWN:
+ case WLC_DISASSOC:
+ case WLC_RESTART:
+ case WLC_REBOOT:
+ case WLC_START_CHANNEL_QA:
+ case WLC_INIT:
+ break;
+
+ default:
+ if ((arg == NULL) || (len <= 0)) {
+ WL_ERROR("wl%d: %s: Command %d needs arguments\n",
+ wlc->pub->unit, __func__, cmd);
+ bcmerror = BCME_BADARG;
+ goto done;
+ }
+ }
+
+ switch (cmd) {
+
+#if defined(BCMDBG)
+ case WLC_GET_MSGLEVEL:
+ *pval = wl_msg_level;
+ break;
+
+ case WLC_SET_MSGLEVEL:
+ wl_msg_level = val;
+ break;
+#endif
+
+ case WLC_GET_INSTANCE:
+ *pval = wlc->pub->unit;
+ break;
+
+ case WLC_GET_CHANNEL:{
+ channel_info_t *ci = (channel_info_t *) arg;
+
+ ASSERT(len > (int)sizeof(ci));
+
+ ci->hw_channel =
+ CHSPEC_CHANNEL(WLC_BAND_PI_RADIO_CHANSPEC);
+ ci->target_channel =
+ CHSPEC_CHANNEL(wlc->default_bss->chanspec);
+ ci->scan_channel = 0;
+
+ break;
+ }
+
+ case WLC_SET_CHANNEL:{
+ chanspec_t chspec = CH20MHZ_CHSPEC(val);
+
+ if (val < 0 || val > MAXCHANNEL) {
+ bcmerror = BCME_OUTOFRANGECHAN;
+ break;
+ }
+
+ if (!wlc_valid_chanspec_db(wlc->cmi, chspec)) {
+ bcmerror = BCME_BADCHAN;
+ break;
+ }
+
+ if (!wlc->pub->up && IS_MBAND_UNLOCKED(wlc)) {
+ if (wlc->band->bandunit !=
+ CHSPEC_WLCBANDUNIT(chspec))
+ wlc->bandinit_pending = true;
+ else
+ wlc->bandinit_pending = false;
+ }
+
+ wlc->default_bss->chanspec = chspec;
+ /* wlc_BSSinit() will sanitize the rateset before using it.. */
+ if (wlc->pub->up && !wlc->pub->associated &&
+ (WLC_BAND_PI_RADIO_CHANSPEC != chspec)) {
+ wlc_set_home_chanspec(wlc, chspec);
+ wlc_suspend_mac_and_wait(wlc);
+ wlc_set_chanspec(wlc, chspec);
+ wlc_enable_mac(wlc);
+ }
+ break;
+ }
+
+#if defined(BCMDBG)
+ case WLC_GET_UCFLAGS:
+ if (!wlc->pub->up) {
+ bcmerror = BCME_NOTUP;
+ break;
+ }
+
+ /* optional band is stored in the second integer of incoming buffer */
+ band =
+ (len <
+ (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
+
+ /* bcmerror checking */
+ bcmerror = wlc_iocregchk(wlc, band);
+ if (bcmerror)
+ break;
+
+ if (val >= MHFMAX) {
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ *pval = wlc_bmac_mhf_get(wlc->hw, (u8) val, WLC_BAND_AUTO);
+ break;
+
+ case WLC_SET_UCFLAGS:
+ if (!wlc->pub->up) {
+ bcmerror = BCME_NOTUP;
+ break;
+ }
+
+ /* optional band is stored in the second integer of incoming buffer */
+ band =
+ (len <
+ (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
+
+ /* bcmerror checking */
+ bcmerror = wlc_iocregchk(wlc, band);
+ if (bcmerror)
+ break;
+
+ i = (u16) val;
+ if (i >= MHFMAX) {
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ wlc_mhf(wlc, (u8) i, 0xffff, (u16) (val >> NBITS(u16)),
+ WLC_BAND_AUTO);
+ break;
+
+ case WLC_GET_SHMEM:
+ ta_ok = true;
+
+ /* optional band is stored in the second integer of incoming buffer */
+ band =
+ (len <
+ (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
+
+ /* bcmerror checking */
+ bcmerror = wlc_iocregchk(wlc, band);
+ if (bcmerror)
+ break;
+
+ if (val & 1) {
+ bcmerror = BCME_BADADDR;
+ break;
+ }
+
+ *pval = wlc_read_shm(wlc, (u16) val);
+ break;
+
+ case WLC_SET_SHMEM:
+ ta_ok = true;
+
+ /* optional band is stored in the second integer of incoming buffer */
+ band =
+ (len <
+ (int)(2 * sizeof(int))) ? WLC_BAND_AUTO : ((int *)arg)[1];
+
+ /* bcmerror checking */
+ bcmerror = wlc_iocregchk(wlc, band);
+ if (bcmerror)
+ break;
+
+ if (val & 1) {
+ bcmerror = BCME_BADADDR;
+ break;
+ }
+
+ wlc_write_shm(wlc, (u16) val,
+ (u16) (val >> NBITS(u16)));
+ break;
+
+ case WLC_R_REG: /* MAC registers */
+ ta_ok = true;
+ r = (rw_reg_t *) arg;
+ band = WLC_BAND_AUTO;
+
+ if (len < (int)(sizeof(rw_reg_t) - sizeof(uint))) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ if (len >= (int)sizeof(rw_reg_t))
+ band = r->band;
+
+ /* bcmerror checking */
+ bcmerror = wlc_iocregchk(wlc, band);
+ if (bcmerror)
+ break;
+
+ if ((r->byteoff + r->size) > sizeof(d11regs_t)) {
+ bcmerror = BCME_BADADDR;
+ break;
+ }
+ if (r->size == sizeof(u32))
+ r->val =
+ R_REG(osh,
+ (u32 *)((unsigned char *)(unsigned long)regs +
+ r->byteoff));
+ else if (r->size == sizeof(u16))
+ r->val =
+ R_REG(osh,
+ (u16 *)((unsigned char *)(unsigned long)regs +
+ r->byteoff));
+ else
+ bcmerror = BCME_BADADDR;
+ break;
+
+ case WLC_W_REG:
+ ta_ok = true;
+ r = (rw_reg_t *) arg;
+ band = WLC_BAND_AUTO;
+
+ if (len < (int)(sizeof(rw_reg_t) - sizeof(uint))) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ if (len >= (int)sizeof(rw_reg_t))
+ band = r->band;
+
+ /* bcmerror checking */
+ bcmerror = wlc_iocregchk(wlc, band);
+ if (bcmerror)
+ break;
+
+ if (r->byteoff + r->size > sizeof(d11regs_t)) {
+ bcmerror = BCME_BADADDR;
+ break;
+ }
+ if (r->size == sizeof(u32))
+ W_REG(osh,
+ (u32 *)((unsigned char *)(unsigned long) regs +
+ r->byteoff), r->val);
+ else if (r->size == sizeof(u16))
+ W_REG(osh,
+ (u16 *)((unsigned char *)(unsigned long) regs +
+ r->byteoff), r->val);
+ else
+ bcmerror = BCME_BADADDR;
+ break;
+#endif /* BCMDBG */
+
+ case WLC_GET_TXANT:
+ *pval = wlc->stf->txant;
+ break;
+
+ case WLC_SET_TXANT:
+ bcmerror = wlc_stf_ant_txant_validate(wlc, (s8) val);
+ if (bcmerror < 0)
+ break;
+
+ wlc->stf->txant = (s8) val;
+
+ /* if down, we are done */
+ if (!wlc->pub->up)
+ break;
+
+ wlc_suspend_mac_and_wait(wlc);
+
+ wlc_stf_phy_txant_upd(wlc);
+ wlc_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec);
+
+ wlc_enable_mac(wlc);
+
+ break;
+
+ case WLC_GET_ANTDIV:{
+ u8 phy_antdiv;
+
+ /* return configured value if core is down */
+ if (!wlc->pub->up) {
+ *pval = wlc->stf->ant_rx_ovr;
+
+ } else {
+ if (wlc_phy_ant_rxdiv_get
+ (wlc->band->pi, &phy_antdiv))
+ *pval = (int)phy_antdiv;
+ else
+ *pval = (int)wlc->stf->ant_rx_ovr;
+ }
+
+ break;
+ }
+ case WLC_SET_ANTDIV:
+ /* values are -1=driver default, 0=force0, 1=force1, 2=start1, 3=start0 */
+ if ((val < -1) || (val > 3)) {
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ if (val == -1)
+ val = ANT_RX_DIV_DEF;
+
+ wlc->stf->ant_rx_ovr = (u8) val;
+ wlc_phy_ant_rxdiv_set(wlc->band->pi, (u8) val);
+ break;
+
+ case WLC_GET_RX_ANT:{ /* get latest used rx antenna */
+ u16 rxstatus;
+
+ if (!wlc->pub->up) {
+ bcmerror = BCME_NOTUP;
+ break;
+ }
+
+ rxstatus = R_REG(wlc->osh, &wlc->regs->phyrxstatus0);
+ if (rxstatus == 0xdead || rxstatus == (u16) -1) {
+ bcmerror = BCME_ERROR;
+ break;
+ }
+ *pval = (rxstatus & PRXS0_RXANT_UPSUBBAND) ? 1 : 0;
+ break;
+ }
+
+#if defined(BCMDBG)
+ case WLC_GET_UCANTDIV:
+ if (!wlc->clk) {
+ bcmerror = BCME_NOCLK;
+ break;
+ }
+
+ *pval =
+ (wlc_bmac_mhf_get(wlc->hw, MHF1, WLC_BAND_AUTO) &
+ MHF1_ANTDIV);
+ break;
+
+ case WLC_SET_UCANTDIV:{
+ if (!wlc->pub->up) {
+ bcmerror = BCME_NOTUP;
+ break;
+ }
+
+ /* if multiband, band must be locked */
+ if (IS_MBAND_UNLOCKED(wlc)) {
+ bcmerror = BCME_NOTBANDLOCKED;
+ break;
+ }
+
+ /* 4322 supports antdiv in phy, no need to set it to ucode */
+ if (WLCISNPHY(wlc->band)
+ && D11REV_IS(wlc->pub->corerev, 16)) {
+ WL_ERROR("wl%d: can't set ucantdiv for 4322\n",
+ wlc->pub->unit);
+ bcmerror = BCME_UNSUPPORTED;
+ } else
+ wlc_mhf(wlc, MHF1, MHF1_ANTDIV,
+ (val ? MHF1_ANTDIV : 0), WLC_BAND_AUTO);
+ break;
+ }
+#endif /* defined(BCMDBG) */
+
+ case WLC_GET_SRL:
+ *pval = wlc->SRL;
+ break;
+
+ case WLC_SET_SRL:
+ if (val >= 1 && val <= RETRY_SHORT_MAX) {
+ int ac;
+ wlc->SRL = (u16) val;
+
+ wlc_bmac_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
+
+ for (ac = 0; ac < AC_COUNT; ac++) {
+ WLC_WME_RETRY_SHORT_SET(wlc, ac, wlc->SRL);
+ }
+ wlc_wme_retries_write(wlc);
+ } else
+ bcmerror = BCME_RANGE;
+ break;
+
+ case WLC_GET_LRL:
+ *pval = wlc->LRL;
+ break;
+
+ case WLC_SET_LRL:
+ if (val >= 1 && val <= 255) {
+ int ac;
+ wlc->LRL = (u16) val;
+
+ wlc_bmac_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
+
+ for (ac = 0; ac < AC_COUNT; ac++) {
+ WLC_WME_RETRY_LONG_SET(wlc, ac, wlc->LRL);
+ }
+ wlc_wme_retries_write(wlc);
+ } else
+ bcmerror = BCME_RANGE;
+ break;
+
+ case WLC_GET_CWMIN:
+ *pval = wlc->band->CWmin;
+ break;
+
+ case WLC_SET_CWMIN:
+ if (!wlc->clk) {
+ bcmerror = BCME_NOCLK;
+ break;
+ }
+
+ if (val >= 1 && val <= 255) {
+ wlc_set_cwmin(wlc, (u16) val);
+ } else
+ bcmerror = BCME_RANGE;
+ break;
+
+ case WLC_GET_CWMAX:
+ *pval = wlc->band->CWmax;
+ break;
+
+ case WLC_SET_CWMAX:
+ if (!wlc->clk) {
+ bcmerror = BCME_NOCLK;
+ break;
+ }
+
+ if (val >= 255 && val <= 2047) {
+ wlc_set_cwmax(wlc, (u16) val);
+ } else
+ bcmerror = BCME_RANGE;
+ break;
+
+ case WLC_GET_RADIO: /* use mask if don't want to expose some internal bits */
+ *pval = wlc->pub->radio_disabled;
+ break;
+
+ case WLC_SET_RADIO:{ /* 32 bits input, higher 16 bits are mask, lower 16 bits are value to
+ * set
+ */
+ u16 radiomask, radioval;
+ uint validbits =
+ WL_RADIO_SW_DISABLE | WL_RADIO_HW_DISABLE;
+ mbool new = 0;
+
+ radiomask = (val & 0xffff0000) >> 16;
+ radioval = val & 0x0000ffff;
+
+ if ((radiomask == 0) || (radiomask & ~validbits)
+ || (radioval & ~validbits)
+ || ((radioval & ~radiomask) != 0)) {
+ WL_ERROR("SET_RADIO with wrong bits 0x%x\n",
+ val);
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ new =
+ (wlc->pub->radio_disabled & ~radiomask) | radioval;
+ wlc->pub->radio_disabled = new;
+
+ wlc_radio_hwdisable_upd(wlc);
+ wlc_radio_upd(wlc);
+ break;
+ }
+
+ case WLC_GET_PHYTYPE:
+ *pval = WLC_PHYTYPE(wlc->band->phytype);
+ break;
+
+#if defined(BCMDBG)
+ case WLC_GET_KEY:
+ if ((val >= 0) && (val < WLC_MAX_WSEC_KEYS(wlc))) {
+ wl_wsec_key_t key;
+
+ wsec_key_t *src_key = wlc->wsec_keys[val];
+
+ if (len < (int)sizeof(key)) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ memset((char *)&key, 0, sizeof(key));
+ if (src_key) {
+ key.index = src_key->id;
+ key.len = src_key->len;
+ bcopy(src_key->data, key.data, key.len);
+ key.algo = src_key->algo;
+ if (WSEC_SOFTKEY(wlc, src_key, bsscfg))
+ key.flags |= WL_SOFT_KEY;
+ if (src_key->flags & WSEC_PRIMARY_KEY)
+ key.flags |= WL_PRIMARY_KEY;
+
+ bcopy(src_key->ea.octet, key.ea.octet,
+ ETH_ALEN);
+ }
+
+ bcopy((char *)&key, arg, sizeof(key));
+ } else
+ bcmerror = BCME_BADKEYIDX;
+ break;
+#endif /* defined(BCMDBG) */
+
+ case WLC_SET_KEY:
+ bcmerror =
+ wlc_iovar_op(wlc, "wsec_key", NULL, 0, arg, len, IOV_SET,
+ wlcif);
+ break;
+
+ case WLC_GET_KEY_SEQ:{
+ wsec_key_t *key;
+
+ if (len < DOT11_WPA_KEY_RSC_LEN) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ /* Return the key's tx iv as an EAPOL sequence counter.
+ * This will be used to supply the RSC value to a supplicant.
+ * The format is 8 bytes, with least significant in seq[0].
+ */
+
+ key = WSEC_KEY(wlc, val);
+ if ((val >= 0) && (val < WLC_MAX_WSEC_KEYS(wlc)) &&
+ (key != NULL)) {
+ u8 seq[DOT11_WPA_KEY_RSC_LEN];
+ u16 lo;
+ u32 hi;
+ /* group keys in WPA-NONE (IBSS only, AES and TKIP) use a global TXIV */
+ if ((bsscfg->WPA_auth & WPA_AUTH_NONE) &&
+ is_zero_ether_addr(key->ea.octet)) {
+ lo = bsscfg->wpa_none_txiv.lo;
+ hi = bsscfg->wpa_none_txiv.hi;
+ } else {
+ lo = key->txiv.lo;
+ hi = key->txiv.hi;
+ }
+
+ /* format the buffer, low to high */
+ seq[0] = lo & 0xff;
+ seq[1] = (lo >> 8) & 0xff;
+ seq[2] = hi & 0xff;
+ seq[3] = (hi >> 8) & 0xff;
+ seq[4] = (hi >> 16) & 0xff;
+ seq[5] = (hi >> 24) & 0xff;
+ seq[6] = 0;
+ seq[7] = 0;
+
+ bcopy((char *)seq, arg, sizeof(seq));
+ } else {
+ bcmerror = BCME_BADKEYIDX;
+ }
+ break;
+ }
+
+ case WLC_GET_CURR_RATESET:{
+ wl_rateset_t *ret_rs = (wl_rateset_t *) arg;
+ wlc_rateset_t *rs;
+
+ if (bsscfg->associated)
+ rs = ¤t_bss->rateset;
+ else
+ rs = &wlc->default_bss->rateset;
+
+ if (len < (int)(rs->count + sizeof(rs->count))) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ /* Copy only legacy rateset section */
+ ret_rs->count = rs->count;
+ bcopy(&rs->rates, &ret_rs->rates, rs->count);
+ break;
+ }
+
+ case WLC_GET_RATESET:{
+ wlc_rateset_t rs;
+ wl_rateset_t *ret_rs = (wl_rateset_t *) arg;
+
+ memset(&rs, 0, sizeof(wlc_rateset_t));
+ wlc_default_rateset(wlc, (wlc_rateset_t *) &rs);
+
+ if (len < (int)(rs.count + sizeof(rs.count))) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ /* Copy only legacy rateset section */
+ ret_rs->count = rs.count;
+ bcopy(&rs.rates, &ret_rs->rates, rs.count);
+ break;
+ }
+
+ case WLC_SET_RATESET:{
+ wlc_rateset_t rs;
+ wl_rateset_t *in_rs = (wl_rateset_t *) arg;
+
+ if (len < (int)(in_rs->count + sizeof(in_rs->count))) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ if (in_rs->count > WLC_NUMRATES) {
+ bcmerror = BCME_BUFTOOLONG;
+ break;
+ }
+
+ memset(&rs, 0, sizeof(wlc_rateset_t));
+
+ /* Copy only legacy rateset section */
+ rs.count = in_rs->count;
+ bcopy(&in_rs->rates, &rs.rates, rs.count);
+
+ /* merge rateset coming in with the current mcsset */
+ if (N_ENAB(wlc->pub)) {
+ if (bsscfg->associated)
+ bcopy(¤t_bss->rateset.mcs[0],
+ rs.mcs, MCSSET_LEN);
+ else
+ bcopy(&wlc->default_bss->rateset.mcs[0],
+ rs.mcs, MCSSET_LEN);
+ }
+
+ bcmerror = wlc_set_rateset(wlc, &rs);
+
+ if (!bcmerror)
+ wlc_ofdm_rateset_war(wlc);
+
+ break;
+ }
+
+ case WLC_GET_BCNPRD:
+ if (BSSCFG_STA(bsscfg) && bsscfg->BSS && bsscfg->associated)
+ *pval = current_bss->beacon_period;
+ else
+ *pval = wlc->default_bss->beacon_period;
+ break;
+
+ case WLC_SET_BCNPRD:
+ /* range [1, 0xffff] */
+ if (val >= DOT11_MIN_BEACON_PERIOD
+ && val <= DOT11_MAX_BEACON_PERIOD) {
+ wlc->default_bss->beacon_period = (u16) val;
+ } else
+ bcmerror = BCME_RANGE;
+ break;
+
+ case WLC_GET_DTIMPRD:
+ if (BSSCFG_STA(bsscfg) && bsscfg->BSS && bsscfg->associated)
+ *pval = current_bss->dtim_period;
+ else
+ *pval = wlc->default_bss->dtim_period;
+ break;
+
+ case WLC_SET_DTIMPRD:
+ /* range [1, 0xff] */
+ if (val >= DOT11_MIN_DTIM_PERIOD
+ && val <= DOT11_MAX_DTIM_PERIOD) {
+ wlc->default_bss->dtim_period = (u8) val;
+ } else
+ bcmerror = BCME_RANGE;
+ break;
+
+#ifdef SUPPORT_PS
+ case WLC_GET_PM:
+ *pval = wlc->PM;
+ break;
+
+ case WLC_SET_PM:
+ if ((val >= PM_OFF) && (val <= PM_MAX)) {
+ wlc->PM = (u8) val;
+ if (wlc->pub->up) {
+ }
+ /* Change watchdog driver to align watchdog with tbtt if possible */
+ wlc_watchdog_upd(wlc, PS_ALLOWED(wlc));
+ } else
+ bcmerror = BCME_ERROR;
+ break;
+#endif /* SUPPORT_PS */
+
+#ifdef SUPPORT_PS
+#ifdef BCMDBG
+ case WLC_GET_WAKE:
+ if (AP_ENAB(wlc->pub)) {
+ bcmerror = BCME_NOTSTA;
+ break;
+ }
+ *pval = wlc->wake;
+ break;
+
+ case WLC_SET_WAKE:
+ if (AP_ENAB(wlc->pub)) {
+ bcmerror = BCME_NOTSTA;
+ break;
+ }
+
+ wlc->wake = val ? true : false;
+
+ /* if down, we're done */
+ if (!wlc->pub->up)
+ break;
+
+ /* apply to the mac */
+ wlc_set_ps_ctrl(wlc);
+ break;
+#endif /* BCMDBG */
+#endif /* SUPPORT_PS */
+
+ case WLC_GET_REVINFO:
+ bcmerror = wlc_get_revision_info(wlc, arg, (uint) len);
+ break;
+
+ case WLC_GET_AP:
+ *pval = (int)AP_ENAB(wlc->pub);
+ break;
+
+ case WLC_GET_ATIM:
+ if (bsscfg->associated)
+ *pval = (int)current_bss->atim_window;
+ else
+ *pval = (int)wlc->default_bss->atim_window;
+ break;
+
+ case WLC_SET_ATIM:
+ wlc->default_bss->atim_window = (u32) val;
+ break;
+
+ case WLC_GET_PKTCNTS:{
+ get_pktcnt_t *pktcnt = (get_pktcnt_t *) pval;
+ if (WLC_UPDATE_STATS(wlc))
+ wlc_statsupd(wlc);
+ pktcnt->rx_good_pkt = WLCNTVAL(wlc->pub->_cnt->rxframe);
+ pktcnt->rx_bad_pkt = WLCNTVAL(wlc->pub->_cnt->rxerror);
+ pktcnt->tx_good_pkt =
+ WLCNTVAL(wlc->pub->_cnt->txfrmsnt);
+ pktcnt->tx_bad_pkt =
+ WLCNTVAL(wlc->pub->_cnt->txerror) +
+ WLCNTVAL(wlc->pub->_cnt->txfail);
+ if (len >= (int)sizeof(get_pktcnt_t)) {
+ /* Be backward compatible - only if buffer is large enough */
+ pktcnt->rx_ocast_good_pkt =
+ WLCNTVAL(wlc->pub->_cnt->rxmfrmocast);
+ }
+ break;
+ }
+
+#ifdef SUPPORT_HWKEY
+ case WLC_GET_WSEC:
+ bcmerror =
+ wlc_iovar_op(wlc, "wsec", NULL, 0, arg, len, IOV_GET,
+ wlcif);
+ break;
+
+ case WLC_SET_WSEC:
+ bcmerror =
+ wlc_iovar_op(wlc, "wsec", NULL, 0, arg, len, IOV_SET,
+ wlcif);
+ break;
+
+ case WLC_GET_WPA_AUTH:
+ *pval = (int)bsscfg->WPA_auth;
+ break;
+
+ case WLC_SET_WPA_AUTH:
+ /* change of WPA_Auth modifies the PS_ALLOWED state */
+ if (BSSCFG_STA(bsscfg)) {
+ bsscfg->WPA_auth = (u16) val;
+ } else
+ bsscfg->WPA_auth = (u16) val;
+ break;
+#endif /* SUPPORT_HWKEY */
+
+ case WLC_GET_BANDLIST:
+ /* count of number of bands, followed by each band type */
+ *pval++ = NBANDS(wlc);
+ *pval++ = wlc->band->bandtype;
+ if (NBANDS(wlc) > 1)
+ *pval++ = wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype;
+ break;
+
+ case WLC_GET_BAND:
+ *pval = wlc->bandlocked ? wlc->band->bandtype : WLC_BAND_AUTO;
+ break;
+
+ case WLC_GET_PHYLIST:
+ {
+ unsigned char *cp = arg;
+ if (len < 3) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+
+ if (WLCISNPHY(wlc->band)) {
+ *cp++ = 'n';
+ } else if (WLCISLCNPHY(wlc->band)) {
+ *cp++ = 'c';
+ } else if (WLCISSSLPNPHY(wlc->band)) {
+ *cp++ = 's';
+ }
+ *cp = '\0';
+ break;
+ }
+
+ case WLC_GET_SHORTSLOT:
+ *pval = wlc->shortslot;
+ break;
+
+ case WLC_GET_SHORTSLOT_OVERRIDE:
+ *pval = wlc->shortslot_override;
+ break;
+
+ case WLC_SET_SHORTSLOT_OVERRIDE:
+ if ((val != WLC_SHORTSLOT_AUTO) &&
+ (val != WLC_SHORTSLOT_OFF) && (val != WLC_SHORTSLOT_ON)) {
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ wlc->shortslot_override = (s8) val;
+
+ /* shortslot is an 11g feature, so no more work if we are
+ * currently on the 5G band
+ */
+ if (BAND_5G(wlc->band->bandtype))
+ break;
+
+ if (wlc->pub->up && wlc->pub->associated) {
+ /* let watchdog or beacon processing update shortslot */
+ } else if (wlc->pub->up) {
+ /* unassociated shortslot is off */
+ wlc_switch_shortslot(wlc, false);
+ } else {
+ /* driver is down, so just update the wlc_info value */
+ if (wlc->shortslot_override == WLC_SHORTSLOT_AUTO) {
+ wlc->shortslot = false;
+ } else {
+ wlc->shortslot =
+ (wlc->shortslot_override ==
+ WLC_SHORTSLOT_ON);
+ }
+ }
+
+ break;
+
+ case WLC_GET_LEGACY_ERP:
+ *pval = wlc->include_legacy_erp;
+ break;
+
+ case WLC_SET_LEGACY_ERP:
+ if (wlc->include_legacy_erp == bool_val)
+ break;
+
+ wlc->include_legacy_erp = bool_val;
+
+ if (AP_ENAB(wlc->pub) && wlc->clk) {
+ wlc_update_beacon(wlc);
+ wlc_update_probe_resp(wlc, true);
+ }
+ break;
+
+ case WLC_GET_GMODE:
+ if (wlc->band->bandtype == WLC_BAND_2G)
+ *pval = wlc->band->gmode;
+ else if (NBANDS(wlc) > 1)
+ *pval = wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode;
+ break;
+
+ case WLC_SET_GMODE:
+ if (!wlc->pub->associated)
+ bcmerror = wlc_set_gmode(wlc, (u8) val, true);
+ else {
+ bcmerror = BCME_ASSOCIATED;
+ break;
+ }
+ break;
+
+ case WLC_GET_GMODE_PROTECTION:
+ *pval = wlc->protection->_g;
+ break;
+
+ case WLC_GET_PROTECTION_CONTROL:
+ *pval = wlc->protection->overlap;
+ break;
+
+ case WLC_SET_PROTECTION_CONTROL:
+ if ((val != WLC_PROTECTION_CTL_OFF) &&
+ (val != WLC_PROTECTION_CTL_LOCAL) &&
+ (val != WLC_PROTECTION_CTL_OVERLAP)) {
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ wlc_protection_upd(wlc, WLC_PROT_OVERLAP, (s8) val);
+
+ /* Current g_protection will sync up to the specified control alg in watchdog
+ * if the driver is up and associated.
+ * If the driver is down or not associated, the control setting has no effect.
+ */
+ break;
+
+ case WLC_GET_GMODE_PROTECTION_OVERRIDE:
+ *pval = wlc->protection->g_override;
+ break;
+
+ case WLC_SET_GMODE_PROTECTION_OVERRIDE:
+ if ((val != WLC_PROTECTION_AUTO) &&
+ (val != WLC_PROTECTION_OFF) && (val != WLC_PROTECTION_ON)) {
+ bcmerror = BCME_RANGE;
+ break;
+ }
+
+ wlc_protection_upd(wlc, WLC_PROT_G_OVR, (s8) val);
+
+ break;
+
+ case WLC_SET_SUP_RATESET_OVERRIDE:{
+ wlc_rateset_t rs, new;
+
+ /* copyin */
+ if (len < (int)sizeof(wlc_rateset_t)) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+ bcopy((char *)arg, (char *)&rs, sizeof(wlc_rateset_t));
+
+ /* check for bad count value */
+ if (rs.count > WLC_NUMRATES) {
+ bcmerror = BCME_BADRATESET; /* invalid rateset */
+ break;
+ }
+
+ /* this command is only appropriate for gmode operation */
+ if (!(wlc->band->gmode ||
+ ((NBANDS(wlc) > 1)
+ && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) {
+ bcmerror = BCME_BADBAND; /* gmode only command when not in gmode */
+ break;
+ }
+
+ /* check for an empty rateset to clear the override */
+ if (rs.count == 0) {
+ memset(&wlc->sup_rates_override, 0,
+ sizeof(wlc_rateset_t));
+ break;
+ }
+
+ /* validate rateset by comparing pre and post sorted against 11g hw rates */
+ wlc_rateset_filter(&rs, &new, false, WLC_RATES_CCK_OFDM,
+ RATE_MASK, BSS_N_ENAB(wlc, bsscfg));
+ wlc_rate_hwrs_filter_sort_validate(&new,
+ &cck_ofdm_rates,
+ false,
+ wlc->stf->txstreams);
+ if (rs.count != new.count) {
+ bcmerror = BCME_BADRATESET; /* invalid rateset */
+ break;
+ }
+
+ /* apply new rateset to the override */
+ bcopy((char *)&new, (char *)&wlc->sup_rates_override,
+ sizeof(wlc_rateset_t));
+
+ /* update bcn and probe resp if needed */
+ if (wlc->pub->up && AP_ENAB(wlc->pub)
+ && wlc->pub->associated) {
+ wlc_update_beacon(wlc);
+ wlc_update_probe_resp(wlc, true);
+ }
+ break;
+ }
+
+ case WLC_GET_SUP_RATESET_OVERRIDE:
+ /* this command is only appropriate for gmode operation */
+ if (!(wlc->band->gmode ||
+ ((NBANDS(wlc) > 1)
+ && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) {
+ bcmerror = BCME_BADBAND; /* gmode only command when not in gmode */
+ break;
+ }
+ if (len < (int)sizeof(wlc_rateset_t)) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+ bcopy((char *)&wlc->sup_rates_override, (char *)arg,
+ sizeof(wlc_rateset_t));
+
+ break;
+
+ case WLC_GET_PRB_RESP_TIMEOUT:
+ *pval = wlc->prb_resp_timeout;
+ break;
+
+ case WLC_SET_PRB_RESP_TIMEOUT:
+ if (wlc->pub->up) {
+ bcmerror = BCME_NOTDOWN;
+ break;
+ }
+ if (val < 0 || val >= 0xFFFF) {
+ bcmerror = BCME_RANGE; /* bad value */
+ break;
+ }
+ wlc->prb_resp_timeout = (u16) val;
+ break;
+
+ case WLC_GET_KEY_PRIMARY:{
+ wsec_key_t *key;
+
+ /* treat the 'val' parm as the key id */
+ key = WSEC_BSS_DEFAULT_KEY(bsscfg);
+ if (key != NULL) {
+ *pval = key->id == val ? true : false;
+ } else {
+ bcmerror = BCME_BADKEYIDX;
+ }
+ break;
+ }
+
+ case WLC_SET_KEY_PRIMARY:{
+ wsec_key_t *key, *old_key;
+
+ bcmerror = BCME_BADKEYIDX;
+
+ /* treat the 'val' parm as the key id */
+ for (i = 0; i < WSEC_MAX_DEFAULT_KEYS; i++) {
+ key = bsscfg->bss_def_keys[i];
+ if (key != NULL && key->id == val) {
+ old_key = WSEC_BSS_DEFAULT_KEY(bsscfg);
+ if (old_key != NULL)
+ old_key->flags &=
+ ~WSEC_PRIMARY_KEY;
+ key->flags |= WSEC_PRIMARY_KEY;
+ bsscfg->wsec_index = i;
+ bcmerror = BCME_OK;
+ }
+ }
+ break;
+ }
+
+#ifdef BCMDBG
+ case WLC_INIT:
+ wl_init(wlc->wl);
+ break;
+#endif
+
+ case WLC_SET_VAR:
+ case WLC_GET_VAR:{
+ char *name;
+ /* validate the name value */
+ name = (char *)arg;
+ for (i = 0; i < (uint) len && *name != '\0';
+ i++, name++)
+ ;
+
+ if (i == (uint) len) {
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+ }
+ i++; /* include the null in the string length */
+
+ if (cmd == WLC_GET_VAR) {
+ bcmerror =
+ wlc_iovar_op(wlc, arg,
+ (void *)((s8 *) arg + i),
+ len - i, arg, len, IOV_GET,
+ wlcif);
+ } else
+ bcmerror =
+ wlc_iovar_op(wlc, arg, NULL, 0,
+ (void *)((s8 *) arg + i),
+ len - i, IOV_SET, wlcif);
+
+ break;
+ }
+
+ case WLC_SET_WSEC_PMK:
+ bcmerror = BCME_UNSUPPORTED;
+ break;
+
+#if defined(BCMDBG)
+ case WLC_CURRENT_PWR:
+ if (!wlc->pub->up)
+ bcmerror = BCME_NOTUP;
+ else
+ bcmerror = wlc_get_current_txpwr(wlc, arg, len);
+ break;
+#endif
+
+ case WLC_LAST:
+ WL_ERROR("%s: WLC_LAST\n", __func__);
+ }
+ done:
+
+ if (bcmerror) {
+ if (VALID_BCMERROR(bcmerror))
+ wlc->pub->bcmerror = bcmerror;
+ else {
+ bcmerror = 0;
+ }
+
+ }
+ /* BMAC_NOTE: for HIGH_ONLY driver, this seems being called after RPC bus failed */
+ /* In hw_off condition, IOCTLs that reach here are deemed safe but taclear would
+ * certainly result in getting -1 for register reads. So skip ta_clear altogether
+ */
+ if (!(wlc->pub->hw_off))
+ ASSERT(wlc_bmac_taclear(wlc->hw, ta_ok) || !ta_ok);
+
+ return bcmerror;
+}
+
+#if defined(BCMDBG)
+/* consolidated register access ioctl error checking */
+int wlc_iocregchk(struct wlc_info *wlc, uint band)
+{
+ /* if band is specified, it must be the current band */
+ if ((band != WLC_BAND_AUTO) && (band != (uint) wlc->band->bandtype))
+ return BCME_BADBAND;
+
+ /* if multiband and band is not specified, band must be locked */
+ if ((band == WLC_BAND_AUTO) && IS_MBAND_UNLOCKED(wlc))
+ return BCME_NOTBANDLOCKED;
+
+ /* must have core clocks */
+ if (!wlc->clk)
+ return BCME_NOCLK;
+
+ return 0;
+}
+#endif /* defined(BCMDBG) */
+
+#if defined(BCMDBG)
+/* For some ioctls, make sure that the pi pointer matches the current phy */
+int wlc_iocpichk(struct wlc_info *wlc, uint phytype)
+{
+ if (wlc->band->phytype != phytype)
+ return BCME_BADBAND;
+ return 0;
+}
+#endif
+
+/* Look up the given var name in the given table */
+static const bcm_iovar_t *wlc_iovar_lookup(const bcm_iovar_t *table,
+ const char *name)
+{
+ const bcm_iovar_t *vi;
+ const char *lookup_name;
+
+ /* skip any ':' delimited option prefixes */
+ lookup_name = strrchr(name, ':');
+ if (lookup_name != NULL)
+ lookup_name++;
+ else
+ lookup_name = name;
+
+ ASSERT(table != NULL);
+
+ for (vi = table; vi->name; vi++) {
+ if (!strcmp(vi->name, lookup_name))
+ return vi;
+ }
+ /* ran to end of table */
+
+ return NULL; /* var name not found */
+}
+
+/* simplified integer get interface for common WLC_GET_VAR ioctl handler */
+int wlc_iovar_getint(struct wlc_info *wlc, const char *name, int *arg)
+{
+ return wlc_iovar_op(wlc, name, NULL, 0, arg, sizeof(s32), IOV_GET,
+ NULL);
+}
+
+/* simplified integer set interface for common WLC_SET_VAR ioctl handler */
+int wlc_iovar_setint(struct wlc_info *wlc, const char *name, int arg)
+{
+ return wlc_iovar_op(wlc, name, NULL, 0, (void *)&arg, sizeof(arg),
+ IOV_SET, NULL);
+}
+
+/* simplified s8 get interface for common WLC_GET_VAR ioctl handler */
+int wlc_iovar_gets8(struct wlc_info *wlc, const char *name, s8 *arg)
+{
+ int iovar_int;
+ int err;
+
+ err =
+ wlc_iovar_op(wlc, name, NULL, 0, &iovar_int, sizeof(iovar_int),
+ IOV_GET, NULL);
+ if (!err)
+ *arg = (s8) iovar_int;
+
+ return err;
+}
+
+/*
+ * register iovar table, watchdog and down handlers.
+ * calling function must keep 'iovars' until wlc_module_unregister is called.
+ * 'iovar' must have the last entry's name field being NULL as terminator.
+ */
+int wlc_module_register(struct wlc_pub *pub, const bcm_iovar_t *iovars,
+ const char *name, void *hdl, iovar_fn_t i_fn,
+ watchdog_fn_t w_fn, down_fn_t d_fn)
+{
+ struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
+ int i;
+
+ ASSERT(name != NULL);
+ ASSERT(i_fn != NULL || w_fn != NULL || d_fn != NULL);
+
+ /* find an empty entry and just add, no duplication check! */
+ for (i = 0; i < WLC_MAXMODULES; i++) {
+ if (wlc->modulecb[i].name[0] == '\0') {
+ strncpy(wlc->modulecb[i].name, name,
+ sizeof(wlc->modulecb[i].name) - 1);
+ wlc->modulecb[i].iovars = iovars;
+ wlc->modulecb[i].hdl = hdl;
+ wlc->modulecb[i].iovar_fn = i_fn;
+ wlc->modulecb[i].watchdog_fn = w_fn;
+ wlc->modulecb[i].down_fn = d_fn;
+ return 0;
+ }
+ }
+
+ /* it is time to increase the capacity */
+ ASSERT(i < WLC_MAXMODULES);
+ return BCME_NORESOURCE;
+}
+
+/* unregister module callbacks */
+int wlc_module_unregister(struct wlc_pub *pub, const char *name, void *hdl)
+{
+ struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
+ int i;
+
+ if (wlc == NULL)
+ return BCME_NOTFOUND;
+
+ ASSERT(name != NULL);
+
+ for (i = 0; i < WLC_MAXMODULES; i++) {
+ if (!strcmp(wlc->modulecb[i].name, name) &&
+ (wlc->modulecb[i].hdl == hdl)) {
+ memset(&wlc->modulecb[i], 0, sizeof(modulecb_t));
+ return 0;
+ }
+ }
+
+ /* table not found! */
+ return BCME_NOTFOUND;
+}
+
+/* Write WME tunable parameters for retransmit/max rate from wlc struct to ucode */
+static void wlc_wme_retries_write(struct wlc_info *wlc)
+{
+ int ac;
+
+ /* Need clock to do this */
+ if (!wlc->clk)
+ return;
+
+ for (ac = 0; ac < AC_COUNT; ac++) {
+ wlc_write_shm(wlc, M_AC_TXLMT_ADDR(ac), wlc->wme_retries[ac]);
+ }
+}
+
+/* Get or set an iovar. The params/p_len pair specifies any additional
+ * qualifying parameters (e.g. an "element index") for a get, while the
+ * arg/len pair is the buffer for the value to be set or retrieved.
+ * Operation (get/set) is specified by the last argument.
+ * interface context provided by wlcif
+ *
+ * All pointers may point into the same buffer.
+ */
+int
+wlc_iovar_op(struct wlc_info *wlc, const char *name,
+ void *params, int p_len, void *arg, int len,
+ bool set, struct wlc_if *wlcif)
+{
+ int err = 0;
+ int val_size;
+ const bcm_iovar_t *vi = NULL;
+ u32 actionid;
+ int i;
+
+ ASSERT(name != NULL);
+
+ ASSERT(len >= 0);
+
+ /* Get MUST have return space */
+ ASSERT(set || (arg && len));
+
+ ASSERT(!(wlc->pub->hw_off && wlc->pub->up));
+
+ /* Set does NOT take qualifiers */
+ ASSERT(!set || (!params && !p_len));
+
+ if (!set && (len == sizeof(int)) &&
+ !(IS_ALIGNED((unsigned long)(arg), (uint) sizeof(int)))) {
+ WL_ERROR("wl%d: %s unaligned get ptr for %s\n",
+ wlc->pub->unit, __func__, name);
+ ASSERT(0);
+ }
+
+ /* find the given iovar name */
+ for (i = 0; i < WLC_MAXMODULES; i++) {
+ if (!wlc->modulecb[i].iovars)
+ continue;
+ vi = wlc_iovar_lookup(wlc->modulecb[i].iovars, name);
+ if (vi)
+ break;
+ }
+ /* iovar name not found */
+ if (i >= WLC_MAXMODULES) {
+ err = BCME_UNSUPPORTED;
+ goto exit;
+ }
+
+ /* set up 'params' pointer in case this is a set command so that
+ * the convenience int and bool code can be common to set and get
+ */
+ if (params == NULL) {
+ params = arg;
+ p_len = len;
+ }
+
+ if (vi->type == IOVT_VOID)
+ val_size = 0;
+ else if (vi->type == IOVT_BUFFER)
+ val_size = len;
+ else
+ /* all other types are integer sized */
+ val_size = sizeof(int);
+
+ actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
+
+ /* Do the actual parameter implementation */
+ err = wlc->modulecb[i].iovar_fn(wlc->modulecb[i].hdl, vi, actionid,
+ name, params, p_len, arg, len, val_size,
+ wlcif);
+
+ exit:
+ return err;
+}
+
+int
+wlc_iovar_check(struct wlc_pub *pub, const bcm_iovar_t *vi, void *arg, int len,
+ bool set)
+{
+ struct wlc_info *wlc = (struct wlc_info *) pub->wlc;
+ int err = 0;
+ s32 int_val = 0;
+
+ /* check generic condition flags */
+ if (set) {
+ if (((vi->flags & IOVF_SET_DOWN) && wlc->pub->up) ||
+ ((vi->flags & IOVF_SET_UP) && !wlc->pub->up)) {
+ err = (wlc->pub->up ? BCME_NOTDOWN : BCME_NOTUP);
+ } else if ((vi->flags & IOVF_SET_BAND)
+ && IS_MBAND_UNLOCKED(wlc)) {
+ err = BCME_NOTBANDLOCKED;
+ } else if ((vi->flags & IOVF_SET_CLK) && !wlc->clk) {
+ err = BCME_NOCLK;
+ }
+ } else {
+ if (((vi->flags & IOVF_GET_DOWN) && wlc->pub->up) ||
+ ((vi->flags & IOVF_GET_UP) && !wlc->pub->up)) {
+ err = (wlc->pub->up ? BCME_NOTDOWN : BCME_NOTUP);
+ } else if ((vi->flags & IOVF_GET_BAND)
+ && IS_MBAND_UNLOCKED(wlc)) {
+ err = BCME_NOTBANDLOCKED;
+ } else if ((vi->flags & IOVF_GET_CLK) && !wlc->clk) {
+ err = BCME_NOCLK;
+ }
+ }
+
+ if (err)
+ goto exit;
+
+ /* length check on io buf */
+ err = bcm_iovar_lencheck(vi, arg, len, set);
+ if (err)
+ goto exit;
+
+ /* On set, check value ranges for integer types */
+ if (set) {
+ switch (vi->type) {
+ case IOVT_BOOL:
+ case IOVT_INT8:
+ case IOVT_INT16:
+ case IOVT_INT32:
+ case IOVT_UINT8:
+ case IOVT_UINT16:
+ case IOVT_UINT32:
+ bcopy(arg, &int_val, sizeof(int));
+ err = wlc_iovar_rangecheck(wlc, int_val, vi);
+ break;
+ }
+ }
+ exit:
+ return err;
+}
+
+/* handler for iovar table wlc_iovars */
+/*
+ * IMPLEMENTATION NOTE: In order to avoid checking for get/set in each
+ * iovar case, the switch statement maps the iovar id into separate get
+ * and set values. If you add a new iovar to the switch you MUST use
+ * IOV_GVAL and/or IOV_SVAL in the case labels to avoid conflict with
+ * another case.
+ * Please use params for additional qualifying parameters.
+ */
+int
+wlc_doiovar(void *hdl, const bcm_iovar_t *vi, u32 actionid,
+ const char *name, void *params, uint p_len, void *arg, int len,
+ int val_size, struct wlc_if *wlcif)
+{
+ struct wlc_info *wlc = hdl;
+ wlc_bsscfg_t *bsscfg;
+ int err = 0;
+ s32 int_val = 0;
+ s32 int_val2 = 0;
+ s32 *ret_int_ptr;
+ bool bool_val;
+ bool bool_val2;
+ wlc_bss_info_t *current_bss;
+
+ WL_TRACE("wl%d: %s\n", wlc->pub->unit, __func__);
+
+ bsscfg = NULL;
+ current_bss = NULL;
+
+ err = wlc_iovar_check(wlc->pub, vi, arg, len, IOV_ISSET(actionid));
+ if (err != 0)
+ return err;
+
+ /* convenience int and bool vals for first 8 bytes of buffer */
+ if (p_len >= (int)sizeof(int_val))
+ bcopy(params, &int_val, sizeof(int_val));
+
+ if (p_len >= (int)sizeof(int_val) * 2)
+ bcopy((void *)((unsigned long)params + sizeof(int_val)), &int_val2,
+ sizeof(int_val));
+
+ /* convenience int ptr for 4-byte gets (requires int aligned arg) */
+ ret_int_ptr = (s32 *) arg;
+
+ bool_val = (int_val != 0) ? true : false;
+ bool_val2 = (int_val2 != 0) ? true : false;
+
+ WL_TRACE("wl%d: %s: id %d\n",
+ wlc->pub->unit, __func__, IOV_ID(actionid));
+ /* Do the actual parameter implementation */
+ switch (actionid) {
+
+ case IOV_GVAL(IOV_QTXPOWER):{
+ uint qdbm;
+ bool override;
+
+ err = wlc_phy_txpower_get(wlc->band->pi, &qdbm,
+ &override);
+ if (err != BCME_OK)
+ return err;
+
+ /* Return qdbm units */
+ *ret_int_ptr =
+ qdbm | (override ? WL_TXPWR_OVERRIDE : 0);
+ break;
+ }
+
+ /* As long as override is false, this only sets the *user* targets.
+ User can twiddle this all he wants with no harm.
+ wlc_phy_txpower_set() explicitly sets override to false if
+ not internal or test.
+ */
+ case IOV_SVAL(IOV_QTXPOWER):{
+ u8 qdbm;
+ bool override;
+
+ /* Remove override bit and clip to max qdbm value */
+ qdbm = (u8)min_t(u32, (int_val & ~WL_TXPWR_OVERRIDE), 0xff);
+ /* Extract override setting */
+ override = (int_val & WL_TXPWR_OVERRIDE) ? true : false;
+ err =
+ wlc_phy_txpower_set(wlc->band->pi, qdbm, override);
+ break;
+ }
+
+ case IOV_GVAL(IOV_MPC):
+ *ret_int_ptr = (s32) wlc->mpc;
+ break;
+
+ case IOV_SVAL(IOV_MPC):
+ wlc->mpc = bool_val;
+ wlc_radio_mpc_upd(wlc);
+
+ break;
+
+ case IOV_GVAL(IOV_BCN_LI_BCN):
+ *ret_int_ptr = wlc->bcn_li_bcn;
+ break;
+
+ case IOV_SVAL(IOV_BCN_LI_BCN):
+ wlc->bcn_li_bcn = (u8) int_val;
+ if (wlc->pub->up)
+ wlc_bcn_li_upd(wlc);
+ break;
+
+ default:
+ WL_ERROR("wl%d: %s: unsupported\n", wlc->pub->unit, __func__);
+ err = BCME_UNSUPPORTED;
+ break;
+ }
+
+ goto exit; /* avoid unused label warning */
+
+ exit:
+ return err;
+}
+
+static int
+wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val, const bcm_iovar_t *vi)
+{
+ int err = 0;
+ u32 min_val = 0;
+ u32 max_val = 0;
+
+ /* Only ranged integers are checked */
+ switch (vi->type) {
+ case IOVT_INT32:
+ max_val |= 0x7fffffff;
+ /* fall through */
+ case IOVT_INT16:
+ max_val |= 0x00007fff;
+ /* fall through */
+ case IOVT_INT8:
+ max_val |= 0x0000007f;
+ min_val = ~max_val;
+ if (vi->flags & IOVF_NTRL)
+ min_val = 1;
+ else if (vi->flags & IOVF_WHL)
+ min_val = 0;
+ /* Signed values are checked against max_val and min_val */
+ if ((s32) val < (s32) min_val
+ || (s32) val > (s32) max_val)
+ err = BCME_RANGE;
+ break;
+
+ case IOVT_UINT32:
+ max_val |= 0xffffffff;
+ /* fall through */
+ case IOVT_UINT16:
+ max_val |= 0x0000ffff;
+ /* fall through */
+ case IOVT_UINT8:
+ max_val |= 0x000000ff;
+ if (vi->flags & IOVF_NTRL)
+ min_val = 1;
+ if ((val < min_val) || (val > max_val))
+ err = BCME_RANGE;
+ break;
+ }
+
+ return err;
+}
+
+#ifdef BCMDBG
+static const char *supr_reason[] = {
+ "None", "PMQ Entry", "Flush request",
+ "Previous frag failure", "Channel mismatch",
+ "Lifetime Expiry", "Underflow"
+};
+
+static void wlc_print_txs_status(u16 s)
+{
+ printf("[15:12] %d frame attempts\n", (s & TX_STATUS_FRM_RTX_MASK) >>
+ TX_STATUS_FRM_RTX_SHIFT);
+ printf(" [11:8] %d rts attempts\n", (s & TX_STATUS_RTS_RTX_MASK) >>
+ TX_STATUS_RTS_RTX_SHIFT);
+ printf(" [7] %d PM mode indicated\n",
+ ((s & TX_STATUS_PMINDCTD) ? 1 : 0));
+ printf(" [6] %d intermediate status\n",
+ ((s & TX_STATUS_INTERMEDIATE) ? 1 : 0));
+ printf(" [5] %d AMPDU\n", (s & TX_STATUS_AMPDU) ? 1 : 0);
+ printf(" [4:2] %d Frame Suppressed Reason (%s)\n",
+ ((s & TX_STATUS_SUPR_MASK) >> TX_STATUS_SUPR_SHIFT),
+ supr_reason[(s & TX_STATUS_SUPR_MASK) >> TX_STATUS_SUPR_SHIFT]);
+ printf(" [1] %d acked\n", ((s & TX_STATUS_ACK_RCV) ? 1 : 0));
+}
+#endif /* BCMDBG */
+
+void wlc_print_txstatus(tx_status_t *txs)
+{
+#if defined(BCMDBG)
+ u16 s = txs->status;
+ u16 ackphyrxsh = txs->ackphyrxsh;
+
+ printf("\ntxpkt (MPDU) Complete\n");
+
+ printf("FrameID: %04x ", txs->frameid);
+ printf("TxStatus: %04x", s);
+ printf("\n");
+#ifdef BCMDBG
+ wlc_print_txs_status(s);
+#endif
+ printf("LastTxTime: %04x ", txs->lasttxtime);
+ printf("Seq: %04x ", txs->sequence);
+ printf("PHYTxStatus: %04x ", txs->phyerr);
+ printf("RxAckRSSI: %04x ",
+ (ackphyrxsh & PRXS1_JSSI_MASK) >> PRXS1_JSSI_SHIFT);
+ printf("RxAckSQ: %04x", (ackphyrxsh & PRXS1_SQ_MASK) >> PRXS1_SQ_SHIFT);
+ printf("\n");
+#endif /* defined(BCMDBG) */
+}
+
+#define MACSTATUPD(name) \
+ wlc_ctrupd_cache(macstats.name, &wlc->core->macstat_snapshot->name, &wlc->pub->_cnt->name)
+
+void wlc_statsupd(struct wlc_info *wlc)
+{
+ int i;
+#ifdef BCMDBG
+ u16 delta;
+ u16 rxf0ovfl;
+ u16 txfunfl[NFIFO];
+#endif /* BCMDBG */
+
+ /* if driver down, make no sense to update stats */
+ if (!wlc->pub->up)
+ return;
+
+#ifdef BCMDBG
+ /* save last rx fifo 0 overflow count */
+ rxf0ovfl = wlc->core->macstat_snapshot->rxf0ovfl;
+
+ /* save last tx fifo underflow count */
+ for (i = 0; i < NFIFO; i++)
+ txfunfl[i] = wlc->core->macstat_snapshot->txfunfl[i];
+#endif /* BCMDBG */
+
+#ifdef BCMDBG
+ /* check for rx fifo 0 overflow */
+ delta = (u16) (wlc->core->macstat_snapshot->rxf0ovfl - rxf0ovfl);
+ if (delta)
+ WL_ERROR("wl%d: %u rx fifo 0 overflows!\n",
+ wlc->pub->unit, delta);
+
+ /* check for tx fifo underflows */
+ for (i = 0; i < NFIFO; i++) {
+ delta =
+ (u16) (wlc->core->macstat_snapshot->txfunfl[i] -
+ txfunfl[i]);
+ if (delta)
+ WL_ERROR("wl%d: %u tx fifo %d underflows!\n",
+ wlc->pub->unit, delta, i);
+ }
+#endif /* BCMDBG */
+
+ /* dot11 counter update */
+
+ WLCNTSET(wlc->pub->_cnt->txrts,
+ (wlc->pub->_cnt->rxctsucast -
+ wlc->pub->_cnt->d11cnt_txrts_off));
+ WLCNTSET(wlc->pub->_cnt->rxcrc,
+ (wlc->pub->_cnt->rxbadfcs - wlc->pub->_cnt->d11cnt_rxcrc_off));
+ WLCNTSET(wlc->pub->_cnt->txnocts,
+ ((wlc->pub->_cnt->txrtsfrm - wlc->pub->_cnt->rxctsucast) -
+ wlc->pub->_cnt->d11cnt_txnocts_off));
+
+ /* merge counters from dma module */
+ for (i = 0; i < NFIFO; i++) {
+ if (wlc->hw->di[i]) {
+ WLCNTADD(wlc->pub->_cnt->txnobuf,
+ (wlc->hw->di[i])->txnobuf);
+ WLCNTADD(wlc->pub->_cnt->rxnobuf,
+ (wlc->hw->di[i])->rxnobuf);
+ WLCNTADD(wlc->pub->_cnt->rxgiant,
+ (wlc->hw->di[i])->rxgiants);
+ dma_counterreset(wlc->hw->di[i]);
+ }
+ }
+
+ /*
+ * Aggregate transmit and receive errors that probably resulted
+ * in the loss of a frame are computed on the fly.
+ */
+ WLCNTSET(wlc->pub->_cnt->txerror,
+ wlc->pub->_cnt->txnobuf + wlc->pub->_cnt->txnoassoc +
+ wlc->pub->_cnt->txuflo + wlc->pub->_cnt->txrunt +
+ wlc->pub->_cnt->dmade + wlc->pub->_cnt->dmada +
+ wlc->pub->_cnt->dmape);
+ WLCNTSET(wlc->pub->_cnt->rxerror,
+ wlc->pub->_cnt->rxoflo + wlc->pub->_cnt->rxnobuf +
+ wlc->pub->_cnt->rxfragerr + wlc->pub->_cnt->rxrunt +
+ wlc->pub->_cnt->rxgiant + wlc->pub->_cnt->rxnoscb +
+ wlc->pub->_cnt->rxbadsrcmac);
+ for (i = 0; i < NFIFO; i++)
+ WLCNTADD(wlc->pub->_cnt->rxerror, wlc->pub->_cnt->rxuflo[i]);
+}
+
+bool wlc_chipmatch(u16 vendor, u16 device)
+{
+ if (vendor != VENDOR_BROADCOM) {
+ WL_ERROR("wlc_chipmatch: unknown vendor id %04x\n", vendor);
+ return false;
+ }
+
+ if ((device == BCM43224_D11N_ID) || (device == BCM43225_D11N2G_ID))
+ return true;
+
+ if (device == BCM4313_D11N2G_ID)
+ return true;
+ if ((device == BCM43236_D11N_ID) || (device == BCM43236_D11N2G_ID))
+ return true;
+
+ WL_ERROR("wlc_chipmatch: unknown device id %04x\n", device);
+ return false;
+}
+
+#if defined(BCMDBG)
+void wlc_print_txdesc(d11txh_t *txh)
+{
+ u16 mtcl = ltoh16(txh->MacTxControlLow);
+ u16 mtch = ltoh16(txh->MacTxControlHigh);
+ u16 mfc = ltoh16(txh->MacFrameControl);
+ u16 tfest = ltoh16(txh->TxFesTimeNormal);
+ u16 ptcw = ltoh16(txh->PhyTxControlWord);
+ u16 ptcw_1 = ltoh16(txh->PhyTxControlWord_1);
+ u16 ptcw_1_Fbr = ltoh16(txh->PhyTxControlWord_1_Fbr);
+ u16 ptcw_1_Rts = ltoh16(txh->PhyTxControlWord_1_Rts);
+ u16 ptcw_1_FbrRts = ltoh16(txh->PhyTxControlWord_1_FbrRts);
+ u16 mainrates = ltoh16(txh->MainRates);
+ u16 xtraft = ltoh16(txh->XtraFrameTypes);
+ u8 *iv = txh->IV;
+ u8 *ra = txh->TxFrameRA;
+ u16 tfestfb = ltoh16(txh->TxFesTimeFallback);
+ u8 *rtspfb = txh->RTSPLCPFallback;
+ u16 rtsdfb = ltoh16(txh->RTSDurFallback);
+ u8 *fragpfb = txh->FragPLCPFallback;
+ u16 fragdfb = ltoh16(txh->FragDurFallback);
+ u16 mmodelen = ltoh16(txh->MModeLen);
+ u16 mmodefbrlen = ltoh16(txh->MModeFbrLen);
+ u16 tfid = ltoh16(txh->TxFrameID);
+ u16 txs = ltoh16(txh->TxStatus);
+ u16 mnmpdu = ltoh16(txh->MaxNMpdus);
+ u16 mabyte = ltoh16(txh->MaxABytes_MRT);
+ u16 mabyte_f = ltoh16(txh->MaxABytes_FBR);
+ u16 mmbyte = ltoh16(txh->MinMBytes);
+
+ u8 *rtsph = txh->RTSPhyHeader;
+ struct dot11_rts_frame rts = txh->rts_frame;
+ char hexbuf[256];
+
+ /* add plcp header along with txh descriptor */
+ prhex("Raw TxDesc + plcp header", (unsigned char *) txh, sizeof(d11txh_t) + 48);
+
+ printf("TxCtlLow: %04x ", mtcl);
+ printf("TxCtlHigh: %04x ", mtch);
+ printf("FC: %04x ", mfc);
+ printf("FES Time: %04x\n", tfest);
+ printf("PhyCtl: %04x%s ", ptcw,
+ (ptcw & PHY_TXC_SHORT_HDR) ? " short" : "");
+ printf("PhyCtl_1: %04x ", ptcw_1);
+ printf("PhyCtl_1_Fbr: %04x\n", ptcw_1_Fbr);
+ printf("PhyCtl_1_Rts: %04x ", ptcw_1_Rts);
+ printf("PhyCtl_1_Fbr_Rts: %04x\n", ptcw_1_FbrRts);
+ printf("MainRates: %04x ", mainrates);
+ printf("XtraFrameTypes: %04x ", xtraft);
+ printf("\n");
+
+ bcm_format_hex(hexbuf, iv, sizeof(txh->IV));
+ printf("SecIV: %s\n", hexbuf);
+ bcm_format_hex(hexbuf, ra, sizeof(txh->TxFrameRA));
+ printf("RA: %s\n", hexbuf);
+
+ printf("Fb FES Time: %04x ", tfestfb);
+ bcm_format_hex(hexbuf, rtspfb, sizeof(txh->RTSPLCPFallback));
+ printf("RTS PLCP: %s ", hexbuf);
+ printf("RTS DUR: %04x ", rtsdfb);
+ bcm_format_hex(hexbuf, fragpfb, sizeof(txh->FragPLCPFallback));
+ printf("PLCP: %s ", hexbuf);
+ printf("DUR: %04x", fragdfb);
+ printf("\n");
+
+ printf("MModeLen: %04x ", mmodelen);
+ printf("MModeFbrLen: %04x\n", mmodefbrlen);
+
+ printf("FrameID: %04x\n", tfid);
+ printf("TxStatus: %04x\n", txs);
+
+ printf("MaxNumMpdu: %04x\n", mnmpdu);
+ printf("MaxAggbyte: %04x\n", mabyte);
+ printf("MaxAggbyte_fb: %04x\n", mabyte_f);
+ printf("MinByte: %04x\n", mmbyte);
+
+ bcm_format_hex(hexbuf, rtsph, sizeof(txh->RTSPhyHeader));
+ printf("RTS PLCP: %s ", hexbuf);
+ bcm_format_hex(hexbuf, (u8 *) &rts, sizeof(txh->rts_frame));
+ printf("RTS Frame: %s", hexbuf);
+ printf("\n");
+
+}
+#endif /* defined(BCMDBG) */
+
+#if defined(BCMDBG)
+void wlc_print_rxh(d11rxhdr_t *rxh)
+{
+ u16 len = rxh->RxFrameSize;
+ u16 phystatus_0 = rxh->PhyRxStatus_0;
+ u16 phystatus_1 = rxh->PhyRxStatus_1;
+ u16 phystatus_2 = rxh->PhyRxStatus_2;
+ u16 phystatus_3 = rxh->PhyRxStatus_3;
+ u16 macstatus1 = rxh->RxStatus1;
+ u16 macstatus2 = rxh->RxStatus2;
+ char flagstr[64];
+ char lenbuf[20];
+ static const bcm_bit_desc_t macstat_flags[] = {
+ {RXS_FCSERR, "FCSErr"},
+ {RXS_RESPFRAMETX, "Reply"},
+ {RXS_PBPRES, "PADDING"},
+ {RXS_DECATMPT, "DeCr"},
+ {RXS_DECERR, "DeCrErr"},
+ {RXS_BCNSENT, "Bcn"},
+ {0, NULL}
+ };
+
+ prhex("Raw RxDesc", (unsigned char *) rxh, sizeof(d11rxhdr_t));
+
+ bcm_format_flags(macstat_flags, macstatus1, flagstr, 64);
+
+ snprintf(lenbuf, sizeof(lenbuf), "0x%x", len);
+
+ printf("RxFrameSize: %6s (%d)%s\n", lenbuf, len,
+ (rxh->PhyRxStatus_0 & PRXS0_SHORTH) ? " short preamble" : "");
+ printf("RxPHYStatus: %04x %04x %04x %04x\n",
+ phystatus_0, phystatus_1, phystatus_2, phystatus_3);
+ printf("RxMACStatus: %x %s\n", macstatus1, flagstr);
+ printf("RXMACaggtype: %x\n", (macstatus2 & RXS_AGGTYPE_MASK));
+ printf("RxTSFTime: %04x\n", rxh->RxTSFTime);
+}
+#endif /* defined(BCMDBG) */
+
+#if defined(BCMDBG)
+int wlc_format_ssid(char *buf, const unsigned char ssid[], uint ssid_len)
+{
+ uint i, c;
+ char *p = buf;
+ char *endp = buf + SSID_FMT_BUF_LEN;
+
+ if (ssid_len > DOT11_MAX_SSID_LEN)
+ ssid_len = DOT11_MAX_SSID_LEN;
+
+ for (i = 0; i < ssid_len; i++) {
+ c = (uint) ssid[i];
+ if (c == '\\') {
+ *p++ = '\\';
+ *p++ = '\\';
+ } else if (isprint((unsigned char) c)) {
+ *p++ = (char)c;
+ } else {
+ p += snprintf(p, (endp - p), "\\x%02X", c);
+ }
+ }
+ *p = '\0';
+ ASSERT(p < endp);
+
+ return (int)(p - buf);
+}
+#endif /* defined(BCMDBG) */
+
+u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate)
+{
+ return wlc_bmac_rate_shm_offset(wlc->hw, rate);
+}
+
+/* Callback for device removed */
+
+/*
+ * Attempts to queue a packet onto a multiple-precedence queue,
+ * if necessary evicting a lower precedence packet from the queue.
+ *
+ * 'prec' is the precedence number that has already been mapped
+ * from the packet priority.
+ *
+ * Returns true if packet consumed (queued), false if not.
+ */
+bool BCMFASTPATH
+wlc_prec_enq(struct wlc_info *wlc, struct pktq *q, void *pkt, int prec)
+{
+ return wlc_prec_enq_head(wlc, q, pkt, prec, false);
+}
+
+bool BCMFASTPATH
+wlc_prec_enq_head(struct wlc_info *wlc, struct pktq *q, struct sk_buff *pkt,
+ int prec, bool head)
+{
+ struct sk_buff *p;
+ int eprec = -1; /* precedence to evict from */
+
+ /* Determine precedence from which to evict packet, if any */
+ if (pktq_pfull(q, prec))
+ eprec = prec;
+ else if (pktq_full(q)) {
+ p = pktq_peek_tail(q, &eprec);
+ ASSERT(p != NULL);
+ if (eprec > prec) {
+ WL_ERROR("%s: Failing: eprec %d > prec %d\n",
+ __func__, eprec, prec);
+ return false;
+ }
+ }
+
+ /* Evict if needed */
+ if (eprec >= 0) {
+ bool discard_oldest;
+
+ /* Detect queueing to unconfigured precedence */
+ ASSERT(!pktq_pempty(q, eprec));
+
+ discard_oldest = AC_BITMAP_TST(wlc->wme_dp, eprec);
+
+ /* Refuse newer packet unless configured to discard oldest */
+ if (eprec == prec && !discard_oldest) {
+ WL_ERROR("%s: No where to go, prec == %d\n",
+ __func__, prec);
+ return false;
+ }
+
+ /* Evict packet according to discard policy */
+ p = discard_oldest ? pktq_pdeq(q, eprec) : pktq_pdeq_tail(q,
+ eprec);
+ ASSERT(p != NULL);
+
+ /* Increment wme stats */
+ if (WME_ENAB(wlc->pub)) {
+ WLCNTINCR(wlc->pub->_wme_cnt->
+ tx_failed[WME_PRIO2AC(p->priority)].packets);
+ WLCNTADD(wlc->pub->_wme_cnt->
+ tx_failed[WME_PRIO2AC(p->priority)].bytes,
+ pkttotlen(wlc->osh, p));
+ }
+
+ ASSERT(0);
+ pkt_buf_free_skb(wlc->osh, p, true);
+ WLCNTINCR(wlc->pub->_cnt->txnobuf);
+ }
+
+ /* Enqueue */
+ if (head)
+ p = pktq_penq_head(q, prec, pkt);
+ else
+ p = pktq_penq(q, prec, pkt);
+ ASSERT(p != NULL);
+
+ return true;
+}
+
+void BCMFASTPATH wlc_txq_enq(void *ctx, struct scb *scb, struct sk_buff *sdu,
+ uint prec)
+{
+ struct wlc_info *wlc = (struct wlc_info *) ctx;
+ wlc_txq_info_t *qi = wlc->active_queue; /* Check me */
+ struct pktq *q = &qi->q;
+ int prio;
+
+ prio = sdu->priority;
+
+ ASSERT(pktq_max(q) >= wlc->pub->tunables->datahiwat);
+
+ if (!wlc_prec_enq(wlc, q, sdu, prec)) {
+ if (!EDCF_ENAB(wlc->pub)
+ || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL))
+ WL_ERROR("wl%d: wlc_txq_enq: txq overflow\n",
+ wlc->pub->unit);
+
+ /* ASSERT(9 == 8); *//* XXX we might hit this condtion in case packet flooding from mac80211 stack */
+ pkt_buf_free_skb(wlc->osh, sdu, true);
+ WLCNTINCR(wlc->pub->_cnt->txnobuf);
+ }
+
+ /* Check if flow control needs to be turned on after enqueuing the packet
+ * Don't turn on flow control if EDCF is enabled. Driver would make the decision on what
+ * to drop instead of relying on stack to make the right decision
+ */
+ if (!EDCF_ENAB(wlc->pub)
+ || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) {
+ if (pktq_len(q) >= wlc->pub->tunables->datahiwat) {
+ wlc_txflowcontrol(wlc, qi, ON, ALLPRIO);
+ }
+ } else if (wlc->pub->_priofc) {
+ if (pktq_plen(q, wlc_prio2prec_map[prio]) >=
+ wlc->pub->tunables->datahiwat) {
+ wlc_txflowcontrol(wlc, qi, ON, prio);
+ }
+ }
+}
+
+bool BCMFASTPATH
+wlc_sendpkt_mac80211(struct wlc_info *wlc, struct sk_buff *sdu,
+ struct ieee80211_hw *hw)
+{
+ u8 prio;
+ uint fifo;
+ void *pkt;
+ struct scb *scb = &global_scb;
+ struct dot11_header *d11_header = (struct dot11_header *)(sdu->data);
+ u16 type, fc;
+
+ ASSERT(sdu);
+
+ fc = ltoh16(d11_header->fc);
+ type = FC_TYPE(fc);
+
+ /* 802.11 standard requires management traffic to go at highest priority */
+ prio = (type == FC_TYPE_DATA ? sdu->priority : MAXPRIO);
+ fifo = prio2fifo[prio];
+
+ ASSERT((uint) skb_headroom(sdu) >= TXOFF);
+ ASSERT(!(sdu->next));
+ ASSERT(!(sdu->prev));
+ ASSERT(fifo < NFIFO);
+
+ pkt = sdu;
+ if (unlikely
+ (wlc_d11hdrs_mac80211(wlc, hw, pkt, scb, 0, 1, fifo, 0, NULL, 0)))
+ return -EINVAL;
+ wlc_txq_enq(wlc, scb, pkt, WLC_PRIO_TO_PREC(prio));
+ wlc_send_q(wlc, wlc->active_queue);
+
+ WLCNTINCR(wlc->pub->_cnt->ieee_tx);
+ return 0;
+}
+
+void BCMFASTPATH wlc_send_q(struct wlc_info *wlc, wlc_txq_info_t *qi)
+{
+ struct sk_buff *pkt[DOT11_MAXNUMFRAGS];
+ int prec;
+ u16 prec_map;
+ int err = 0, i, count;
+ uint fifo;
+ struct pktq *q = &qi->q;
+ struct ieee80211_tx_info *tx_info;
+
+ /* only do work for the active queue */
+ if (qi != wlc->active_queue)
+ return;
+
+ if (in_send_q)
+ return;
+ else
+ in_send_q = true;
+
+ prec_map = wlc->tx_prec_map;
+
+ /* Send all the enq'd pkts that we can.
+ * Dequeue packets with precedence with empty HW fifo only
+ */
+ while (prec_map && (pkt[0] = pktq_mdeq(q, prec_map, &prec))) {
+ tx_info = IEEE80211_SKB_CB(pkt[0]);
+ if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+ err = wlc_sendampdu(wlc->ampdu, qi, pkt, prec);
+ } else {
+ count = 1;
+ err = wlc_prep_pdu(wlc, pkt[0], &fifo);
+ if (!err) {
+ for (i = 0; i < count; i++) {
+ wlc_txfifo(wlc, fifo, pkt[i], true, 1);
+ }
+ }
+ }
+
+ if (err == BCME_BUSY) {
+ pktq_penq_head(q, prec, pkt[0]);
+ /* If send failed due to any other reason than a change in
+ * HW FIFO condition, quit. Otherwise, read the new prec_map!
+ */
+ if (prec_map == wlc->tx_prec_map)
+ break;
+ prec_map = wlc->tx_prec_map;
+ }
+ }
+
+ /* Check if flow control needs to be turned off after sending the packet */
+ if (!EDCF_ENAB(wlc->pub)
+ || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) {
+ if (wlc_txflowcontrol_prio_isset(wlc, qi, ALLPRIO)
+ && (pktq_len(q) < wlc->pub->tunables->datahiwat / 2)) {
+ wlc_txflowcontrol(wlc, qi, OFF, ALLPRIO);
+ }
+ } else if (wlc->pub->_priofc) {
+ int prio;
+ for (prio = MAXPRIO; prio >= 0; prio--) {
+ if (wlc_txflowcontrol_prio_isset(wlc, qi, prio) &&
+ (pktq_plen(q, wlc_prio2prec_map[prio]) <
+ wlc->pub->tunables->datahiwat / 2)) {
+ wlc_txflowcontrol(wlc, qi, OFF, prio);
+ }
+ }
+ }
+ in_send_q = false;
+}
+
+/*
+ * bcmc_fid_generate:
+ * Generate frame ID for a BCMC packet. The frag field is not used
+ * for MC frames so is used as part of the sequence number.
+ */
+static inline u16
+bcmc_fid_generate(struct wlc_info *wlc, wlc_bsscfg_t *bsscfg, d11txh_t *txh)
+{
+ u16 frameid;
+
+ frameid = ltoh16(txh->TxFrameID) & ~(TXFID_SEQ_MASK | TXFID_QUEUE_MASK);
+ frameid |=
+ (((wlc->
+ mc_fid_counter++) << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
+ TX_BCMC_FIFO;
+
+ return frameid;
+}
+
+void BCMFASTPATH
+wlc_txfifo(struct wlc_info *wlc, uint fifo, struct sk_buff *p, bool commit,
+ s8 txpktpend)
+{
+ u16 frameid = INVALIDFID;
+ d11txh_t *txh;
+
+ ASSERT(fifo < NFIFO);
+ txh = (d11txh_t *) (p->data);
+
+ /* When a BC/MC frame is being committed to the BCMC fifo via DMA (NOT PIO), update
+ * ucode or BSS info as appropriate.
+ */
+ if (fifo == TX_BCMC_FIFO) {
+ frameid = ltoh16(txh->TxFrameID);
+
+ }
+
+ if (WLC_WAR16165(wlc))
+ wlc_war16165(wlc, true);
+
+
+ /* Bump up pending count for if not using rpc. If rpc is used, this will be handled
+ * in wlc_bmac_txfifo()
+ */
+ if (commit) {
+ TXPKTPENDINC(wlc, fifo, txpktpend);
+ WL_TRACE("wlc_txfifo, pktpend inc %d to %d\n",
+ txpktpend, TXPKTPENDGET(wlc, fifo));
+ }
+
+ /* Commit BCMC sequence number in the SHM frame ID location */
+ if (frameid != INVALIDFID)
+ BCMCFID(wlc, frameid);
+
+ if (dma_txfast(wlc->hw->di[fifo], p, commit) < 0) {
+ WL_ERROR("wlc_txfifo: fatal, toss frames !!!\n");
+ }
+}
+
+static u16
+wlc_compute_airtime(struct wlc_info *wlc, ratespec_t rspec, uint length)
+{
+ u16 usec = 0;
+ uint mac_rate = RSPEC2RATE(rspec);
+ uint nsyms;
+
+ if (IS_MCS(rspec)) {
+ /* not supported yet */
+ ASSERT(0);
+ } else if (IS_OFDM(rspec)) {
+ /* nsyms = Ceiling(Nbits / (Nbits/sym))
+ *
+ * Nbits = length * 8
+ * Nbits/sym = Mbps * 4 = mac_rate * 2
+ */
+ nsyms = CEIL((length * 8), (mac_rate * 2));
+
+ /* usec = symbols * usec/symbol */
+ usec = (u16) (nsyms * APHY_SYMBOL_TIME);
+ return usec;
+ } else {
+ switch (mac_rate) {
+ case WLC_RATE_1M:
+ usec = length << 3;
+ break;
+ case WLC_RATE_2M:
+ usec = length << 2;
+ break;
+ case WLC_RATE_5M5:
+ usec = (length << 4) / 11;
+ break;
+ case WLC_RATE_11M:
+ usec = (length << 3) / 11;
+ break;
+ default:
+ WL_ERROR("wl%d: wlc_compute_airtime: unsupported rspec 0x%x\n",
+ wlc->pub->unit, rspec);
+ ASSERT((const char *)"Bad phy_rate" == NULL);
+ break;
+ }
+ }
+
+ return usec;
+}
+
+void BCMFASTPATH
+wlc_compute_plcp(struct wlc_info *wlc, ratespec_t rspec, uint length, u8 *plcp)
+{
+ if (IS_MCS(rspec)) {
+ wlc_compute_mimo_plcp(rspec, length, plcp);
+ } else if (IS_OFDM(rspec)) {
+ wlc_compute_ofdm_plcp(rspec, length, plcp);
+ } else {
+ wlc_compute_cck_plcp(rspec, length, plcp);
+ }
+ return;
+}
+
+/* Rate: 802.11 rate code, length: PSDU length in octets */
+static void wlc_compute_mimo_plcp(ratespec_t rspec, uint length, u8 *plcp)
+{
+ u8 mcs = (u8) (rspec & RSPEC_RATE_MASK);
+ ASSERT(IS_MCS(rspec));
+ plcp[0] = mcs;
+ if (RSPEC_IS40MHZ(rspec) || (mcs == 32))
+ plcp[0] |= MIMO_PLCP_40MHZ;
+ WLC_SET_MIMO_PLCP_LEN(plcp, length);
+ plcp[3] = RSPEC_MIMOPLCP3(rspec); /* rspec already holds this byte */
+ plcp[3] |= 0x7; /* set smoothing, not sounding ppdu & reserved */
+ plcp[4] = 0; /* number of extension spatial streams bit 0 & 1 */
+ plcp[5] = 0;
+}
+
+/* Rate: 802.11 rate code, length: PSDU length in octets */
+static void BCMFASTPATH
+wlc_compute_ofdm_plcp(ratespec_t rspec, u32 length, u8 *plcp)
+{
+ u8 rate_signal;
+ u32 tmp = 0;
+ int rate = RSPEC2RATE(rspec);
+
+ ASSERT(IS_OFDM(rspec));
+
+ /* encode rate per 802.11a-1999 sec 17.3.4.1, with lsb transmitted first */
+ rate_signal = rate_info[rate] & RATE_MASK;
+ ASSERT(rate_signal != 0);
+
+ memset(plcp, 0, D11_PHY_HDR_LEN);
+ D11A_PHY_HDR_SRATE((ofdm_phy_hdr_t *) plcp, rate_signal);
+
+ tmp = (length & 0xfff) << 5;
+ plcp[2] |= (tmp >> 16) & 0xff;
+ plcp[1] |= (tmp >> 8) & 0xff;
+ plcp[0] |= tmp & 0xff;
+
+ return;
+}
+
+/*
+ * Compute PLCP, but only requires actual rate and length of pkt.
+ * Rate is given in the driver standard multiple of 500 kbps.
+ * le is set for 11 Mbps rate if necessary.
+ * Broken out for PRQ.
+ */
+
+static void wlc_cck_plcp_set(int rate_500, uint length, u8 *plcp)
+{
+ u16 usec = 0;
+ u8 le = 0;
+
+ switch (rate_500) {
+ case WLC_RATE_1M:
+ usec = length << 3;
+ break;
+ case WLC_RATE_2M:
+ usec = length << 2;
+ break;
+ case WLC_RATE_5M5:
+ usec = (length << 4) / 11;
+ if ((length << 4) - (usec * 11) > 0)
+ usec++;
+ break;
+ case WLC_RATE_11M:
+ usec = (length << 3) / 11;
+ if ((length << 3) - (usec * 11) > 0) {
+ usec++;
+ if ((usec * 11) - (length << 3) >= 8)
+ le = D11B_PLCP_SIGNAL_LE;
+ }
+ break;
+
+ default:
+ WL_ERROR("wlc_cck_plcp_set: unsupported rate %d\n", rate_500);
+ rate_500 = WLC_RATE_1M;
+ usec = length << 3;
+ break;
+ }
+ /* PLCP signal byte */
+ plcp[0] = rate_500 * 5; /* r (500kbps) * 5 == r (100kbps) */
+ /* PLCP service byte */
+ plcp[1] = (u8) (le | D11B_PLCP_SIGNAL_LOCKED);
+ /* PLCP length u16, little endian */
+ plcp[2] = usec & 0xff;
+ plcp[3] = (usec >> 8) & 0xff;
+ /* PLCP CRC16 */
+ plcp[4] = 0;
+ plcp[5] = 0;
+}
+
+/* Rate: 802.11 rate code, length: PSDU length in octets */
+static void wlc_compute_cck_plcp(ratespec_t rspec, uint length, u8 *plcp)
+{
+ int rate = RSPEC2RATE(rspec);
+
+ ASSERT(IS_CCK(rspec));
+
+ wlc_cck_plcp_set(rate, length, plcp);
+}
+
+/* wlc_compute_frame_dur()
+ *
+ * Calculate the 802.11 MAC header DUR field for MPDU
+ * DUR for a single frame = 1 SIFS + 1 ACK
+ * DUR for a frame with following frags = 3 SIFS + 2 ACK + next frag time
+ *
+ * rate MPDU rate in unit of 500kbps
+ * next_frag_len next MPDU length in bytes
+ * preamble_type use short/GF or long/MM PLCP header
+ */
+static u16 BCMFASTPATH
+wlc_compute_frame_dur(struct wlc_info *wlc, ratespec_t rate, u8 preamble_type,
+ uint next_frag_len)
+{
+ u16 dur, sifs;
+
+ sifs = SIFS(wlc->band);
+
+ dur = sifs;
+ dur += (u16) wlc_calc_ack_time(wlc, rate, preamble_type);
+
+ if (next_frag_len) {
+ /* Double the current DUR to get 2 SIFS + 2 ACKs */
+ dur *= 2;
+ /* add another SIFS and the frag time */
+ dur += sifs;
+ dur +=
+ (u16) wlc_calc_frame_time(wlc, rate, preamble_type,
+ next_frag_len);
+ }
+ return dur;
+}
+
+/* wlc_compute_rtscts_dur()
+ *
+ * Calculate the 802.11 MAC header DUR field for an RTS or CTS frame
+ * DUR for normal RTS/CTS w/ frame = 3 SIFS + 1 CTS + next frame time + 1 ACK
+ * DUR for CTS-TO-SELF w/ frame = 2 SIFS + next frame time + 1 ACK
+ *
+ * cts cts-to-self or rts/cts
+ * rts_rate rts or cts rate in unit of 500kbps
+ * rate next MPDU rate in unit of 500kbps
+ * frame_len next MPDU frame length in bytes
+ */
+u16 BCMFASTPATH
+wlc_compute_rtscts_dur(struct wlc_info *wlc, bool cts_only, ratespec_t rts_rate,
+ ratespec_t frame_rate, u8 rts_preamble_type,
+ u8 frame_preamble_type, uint frame_len, bool ba)
+{
+ u16 dur, sifs;
+
+ sifs = SIFS(wlc->band);
+
+ if (!cts_only) { /* RTS/CTS */
+ dur = 3 * sifs;
+ dur +=
+ (u16) wlc_calc_cts_time(wlc, rts_rate,
+ rts_preamble_type);
+ } else { /* CTS-TO-SELF */
+ dur = 2 * sifs;
+ }
+
+ dur +=
+ (u16) wlc_calc_frame_time(wlc, frame_rate, frame_preamble_type,
+ frame_len);
+ if (ba)
+ dur +=
+ (u16) wlc_calc_ba_time(wlc, frame_rate,
+ WLC_SHORT_PREAMBLE);
+ else
+ dur +=
+ (u16) wlc_calc_ack_time(wlc, frame_rate,
+ frame_preamble_type);
+ return dur;
+}
+
+static bool wlc_phy_rspec_check(struct wlc_info *wlc, u16 bw, ratespec_t rspec)
+{
+ if (IS_MCS(rspec)) {
+ uint mcs = rspec & RSPEC_RATE_MASK;
+
+ if (mcs < 8) {
+ ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_SDM);
+ } else if ((mcs >= 8) && (mcs <= 23)) {
+ ASSERT(RSPEC_STF(rspec) == PHY_TXC1_MODE_SDM);
+ } else if (mcs == 32) {
+ ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_SDM);
+ ASSERT(bw == PHY_TXC1_BW_40MHZ_DUP);
+ }
+ } else if (IS_OFDM(rspec)) {
+ ASSERT(RSPEC_STF(rspec) < PHY_TXC1_MODE_STBC);
+ } else {
+ ASSERT(IS_CCK(rspec));
+
+ ASSERT((bw == PHY_TXC1_BW_20MHZ)
+ || (bw == PHY_TXC1_BW_20MHZ_UP));
+ ASSERT(RSPEC_STF(rspec) == PHY_TXC1_MODE_SISO);
+ }
+
+ return true;
+}
+
+u16 BCMFASTPATH wlc_phytxctl1_calc(struct wlc_info *wlc, ratespec_t rspec)
+{
+ u16 phyctl1 = 0;
+ u16 bw;
+
+ if (WLCISLCNPHY(wlc->band)) {
+ bw = PHY_TXC1_BW_20MHZ;
+ } else {
+ bw = RSPEC_GET_BW(rspec);
+ /* 10Mhz is not supported yet */
+ if (bw < PHY_TXC1_BW_20MHZ) {
+ WL_ERROR("wlc_phytxctl1_calc: bw %d is not supported yet, set to 20L\n",
+ bw);
+ bw = PHY_TXC1_BW_20MHZ;
+ }
+
+ wlc_phy_rspec_check(wlc, bw, rspec);
+ }
+
+ if (IS_MCS(rspec)) {
+ uint mcs = rspec & RSPEC_RATE_MASK;
+
+ /* bw, stf, coding-type is part of RSPEC_PHYTXBYTE2 returns */
+ phyctl1 = RSPEC_PHYTXBYTE2(rspec);
+ /* set the upper byte of phyctl1 */
+ phyctl1 |= (mcs_table[mcs].tx_phy_ctl3 << 8);
+ } else if (IS_CCK(rspec) && !WLCISLCNPHY(wlc->band)
+ && !WLCISSSLPNPHY(wlc->band)) {
+ /* In CCK mode LPPHY overloads OFDM Modulation bits with CCK Data Rate */
+ /* Eventually MIMOPHY would also be converted to this format */
+ /* 0 = 1Mbps; 1 = 2Mbps; 2 = 5.5Mbps; 3 = 11Mbps */
+ phyctl1 = (bw | (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT));
+ } else { /* legacy OFDM/CCK */
+ s16 phycfg;
+ /* get the phyctl byte from rate phycfg table */
+ phycfg = wlc_rate_legacy_phyctl(RSPEC2RATE(rspec));
+ if (phycfg == -1) {
+ WL_ERROR("wlc_phytxctl1_calc: wrong legacy OFDM/CCK rate\n");
+ ASSERT(0);
+ phycfg = 0;
+ }
+ /* set the upper byte of phyctl1 */
+ phyctl1 =
+ (bw | (phycfg << 8) |
+ (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT));
+ }
+
+#ifdef BCMDBG
+ /* phy clock must support 40Mhz if tx descriptor uses it */
+ if ((phyctl1 & PHY_TXC1_BW_MASK) >= PHY_TXC1_BW_40MHZ) {
+ ASSERT(CHSPEC_WLC_BW(wlc->chanspec) == WLC_40_MHZ);
+ ASSERT(wlc->chanspec == wlc_phy_chanspec_get(wlc->band->pi));
+ }
+#endif /* BCMDBG */
+ return phyctl1;
+}
+
+ratespec_t BCMFASTPATH
+wlc_rspec_to_rts_rspec(struct wlc_info *wlc, ratespec_t rspec, bool use_rspec,
+ u16 mimo_ctlchbw)
+{
+ ratespec_t rts_rspec = 0;
+
+ if (use_rspec) {
+ /* use frame rate as rts rate */
+ rts_rspec = rspec;
+
+ } else if (wlc->band->gmode && wlc->protection->_g && !IS_CCK(rspec)) {
+ /* Use 11Mbps as the g protection RTS target rate and fallback.
+ * Use the WLC_BASIC_RATE() lookup to find the best basic rate under the
+ * target in case 11 Mbps is not Basic.
+ * 6 and 9 Mbps are not usually selected by rate selection, but even
+ * if the OFDM rate we are protecting is 6 or 9 Mbps, 11 is more robust.
+ */
+ rts_rspec = WLC_BASIC_RATE(wlc, WLC_RATE_11M);
+ } else {
+ /* calculate RTS rate and fallback rate based on the frame rate
+ * RTS must be sent at a basic rate since it is a
+ * control frame, sec 9.6 of 802.11 spec
+ */
+ rts_rspec = WLC_BASIC_RATE(wlc, rspec);
+ }
+
+ if (WLC_PHY_11N_CAP(wlc->band)) {
+ /* set rts txbw to correct side band */
+ rts_rspec &= ~RSPEC_BW_MASK;
+
+ /* if rspec/rspec_fallback is 40MHz, then send RTS on both 20MHz channel
+ * (DUP), otherwise send RTS on control channel
+ */
+ if (RSPEC_IS40MHZ(rspec) && !IS_CCK(rts_rspec))
+ rts_rspec |= (PHY_TXC1_BW_40MHZ_DUP << RSPEC_BW_SHIFT);
+ else
+ rts_rspec |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
+
+ /* pick siso/cdd as default for ofdm */
+ if (IS_OFDM(rts_rspec)) {
+ rts_rspec &= ~RSPEC_STF_MASK;
+ rts_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
+ }
+ }
+ return rts_rspec;
+}
+
+/*
+ * Add d11txh_t, cck_phy_hdr_t.
+ *
+ * 'p' data must start with 802.11 MAC header
+ * 'p' must allow enough bytes of local headers to be "pushed" onto the packet
+ *
+ * headroom == D11_PHY_HDR_LEN + D11_TXH_LEN (D11_TXH_LEN is now 104 bytes)
+ *
+ */
+static u16 BCMFASTPATH
+wlc_d11hdrs_mac80211(struct wlc_info *wlc, struct ieee80211_hw *hw,
+ struct sk_buff *p, struct scb *scb, uint frag,
+ uint nfrags, uint queue, uint next_frag_len,
+ wsec_key_t *key, ratespec_t rspec_override)
+{
+ struct dot11_header *h;
+ d11txh_t *txh;
+ u8 *plcp, plcp_fallback[D11_PHY_HDR_LEN];
+ struct osl_info *osh;
+ int len, phylen, rts_phylen;
+ u16 fc, type, frameid, mch, phyctl, xfts, mainrates;
+ u16 seq = 0, mcl = 0, status = 0;
+ ratespec_t rspec[2] = { WLC_RATE_1M, WLC_RATE_1M }, rts_rspec[2] = {
+ WLC_RATE_1M, WLC_RATE_1M};
+ bool use_rts = false;
+ bool use_cts = false;
+ bool use_rifs = false;
+ bool short_preamble[2] = { false, false };
+ u8 preamble_type[2] = { WLC_LONG_PREAMBLE, WLC_LONG_PREAMBLE };
+ u8 rts_preamble_type[2] = { WLC_LONG_PREAMBLE, WLC_LONG_PREAMBLE };
+ u8 *rts_plcp, rts_plcp_fallback[D11_PHY_HDR_LEN];
+ struct dot11_rts_frame *rts = NULL;
+ bool qos;
+ uint ac;
+ u32 rate_val[2];
+ bool hwtkmic = false;
+ u16 mimo_ctlchbw = PHY_TXC1_BW_20MHZ;
+#ifdef WLANTSEL
+#define ANTCFG_NONE 0xFF
+ u8 antcfg = ANTCFG_NONE;
+ u8 fbantcfg = ANTCFG_NONE;
+#endif
+ uint phyctl1_stf = 0;
+ u16 durid = 0;
+ struct ieee80211_tx_rate *txrate[2];
+ int k;
+ struct ieee80211_tx_info *tx_info;
+ bool is_mcs[2];
+ u16 mimo_txbw;
+ u8 mimo_preamble_type;
+
+ frameid = 0;
+
+ ASSERT(queue < NFIFO);
+
+ osh = wlc->osh;
+
+ /* locate 802.11 MAC header */
+ h = (struct dot11_header *)(p->data);
+ fc = ltoh16(h->fc);
+ type = FC_TYPE(fc);
+
+ qos = (type == FC_TYPE_DATA && FC_SUBTYPE_ANY_QOS(FC_SUBTYPE(fc)));
+
+ /* compute length of frame in bytes for use in PLCP computations */
+ len = pkttotlen(osh, p);
+ phylen = len + DOT11_FCS_LEN;
+
+ /* If WEP enabled, add room in phylen for the additional bytes of
+ * ICV which MAC generates. We do NOT add the additional bytes to
+ * the packet itself, thus phylen = packet length + ICV_LEN + FCS_LEN
+ * in this case
+ */
+ if (key) {
+ phylen += key->icv_len;
+ }
+
+ /* Get tx_info */
+ tx_info = IEEE80211_SKB_CB(p);
+ ASSERT(tx_info);
+
+ /* add PLCP */
+ plcp = skb_push(p, D11_PHY_HDR_LEN);
+
+ /* add Broadcom tx descriptor header */
+ txh = (d11txh_t *) skb_push(p, D11_TXH_LEN);
+ memset((char *)txh, 0, D11_TXH_LEN);
+
+ /* setup frameid */
+ if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+ /* non-AP STA should never use BCMC queue */
+ ASSERT(queue != TX_BCMC_FIFO);
+ if (queue == TX_BCMC_FIFO) {
+ WL_ERROR("wl%d: %s: ASSERT queue == TX_BCMC!\n",
+ WLCWLUNIT(wlc), __func__);
+ frameid = bcmc_fid_generate(wlc, NULL, txh);
+ } else {
+ /* Increment the counter for first fragment */
+ if (tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) {
+ SCB_SEQNUM(scb, p->priority)++;
+ }
+
+ /* extract fragment number from frame first */
+ seq = ltoh16(seq) & FRAGNUM_MASK;
+ seq |= (SCB_SEQNUM(scb, p->priority) << SEQNUM_SHIFT);
+ h->seq = htol16(seq);
+
+ frameid = ((seq << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
+ (queue & TXFID_QUEUE_MASK);
+ }
+ }
+ frameid |= queue & TXFID_QUEUE_MASK;
+
+ /* set the ignpmq bit for all pkts tx'd in PS mode and for beacons */
+ if (SCB_PS(scb) || ((fc & FC_KIND_MASK) == FC_BEACON))
+ mcl |= TXC_IGNOREPMQ;
+
+ ASSERT(hw->max_rates <= IEEE80211_TX_MAX_RATES);
+ ASSERT(hw->max_rates == 2);
+
+ txrate[0] = tx_info->control.rates;
+ txrate[1] = txrate[0] + 1;
+
+ ASSERT(txrate[0]->idx >= 0);
+ /* if rate control algorithm didn't give us a fallback rate, use the primary rate */
+ if (txrate[1]->idx < 0) {
+ txrate[1] = txrate[0];
+ }
+
+ for (k = 0; k < hw->max_rates; k++) {
+ is_mcs[k] =
+ txrate[k]->flags & IEEE80211_TX_RC_MCS ? true : false;
+ if (!is_mcs[k]) {
+ ASSERT(!(tx_info->flags & IEEE80211_TX_CTL_AMPDU));
+ if ((txrate[k]->idx >= 0)
+ && (txrate[k]->idx <
+ hw->wiphy->bands[tx_info->band]->n_bitrates)) {
+ rate_val[k] =
+ hw->wiphy->bands[tx_info->band]->
+ bitrates[txrate[k]->idx].hw_value;
+ short_preamble[k] =
+ txrate[k]->
+ flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ?
+ true : false;
+ } else {
+ ASSERT((txrate[k]->idx >= 0) &&
+ (txrate[k]->idx <
+ hw->wiphy->bands[tx_info->band]->
+ n_bitrates));
+ rate_val[k] = WLC_RATE_1M;
+ }
+ } else {
+ rate_val[k] = txrate[k]->idx;
+ }
+ /* Currently only support same setting for primay and fallback rates.
+ * Unify flags for each rate into a single value for the frame
+ */
+ use_rts |=
+ txrate[k]->
+ flags & IEEE80211_TX_RC_USE_RTS_CTS ? true : false;
+ use_cts |=
+ txrate[k]->
+ flags & IEEE80211_TX_RC_USE_CTS_PROTECT ? true : false;
+
+ if (is_mcs[k])
+ rate_val[k] |= NRATE_MCS_INUSE;
+
+ rspec[k] = mac80211_wlc_set_nrate(wlc, wlc->band, rate_val[k]);
+
+ /* (1) RATE: determine and validate primary rate and fallback rates */
+ if (!RSPEC_ACTIVE(rspec[k])) {
+ ASSERT(RSPEC_ACTIVE(rspec[k]));
+ rspec[k] = WLC_RATE_1M;
+ } else {
+ if (WLANTSEL_ENAB(wlc) &&
+ !is_multicast_ether_addr(h->a1.octet)) {
+ /* set tx antenna config */
+ wlc_antsel_antcfg_get(wlc->asi, false, false, 0,
+ 0, &antcfg, &fbantcfg);
+ }
+ }
+ }
+
+ phyctl1_stf = wlc->stf->ss_opmode;
+
+ if (N_ENAB(wlc->pub)) {
+ for (k = 0; k < hw->max_rates; k++) {
+ /* apply siso/cdd to single stream mcs's or ofdm if rspec is auto selected */
+ if (((IS_MCS(rspec[k]) &&
+ IS_SINGLE_STREAM(rspec[k] & RSPEC_RATE_MASK)) ||
+ IS_OFDM(rspec[k]))
+ && ((rspec[k] & RSPEC_OVERRIDE_MCS_ONLY)
+ || !(rspec[k] & RSPEC_OVERRIDE))) {
+ rspec[k] &= ~(RSPEC_STF_MASK | RSPEC_STC_MASK);
+
+ /* For SISO MCS use STBC if possible */
+ if (IS_MCS(rspec[k])
+ && WLC_STF_SS_STBC_TX(wlc, scb)) {
+ u8 stc;
+
+ ASSERT(WLC_STBC_CAP_PHY(wlc));
+ stc = 1; /* Nss for single stream is always 1 */
+ rspec[k] |=
+ (PHY_TXC1_MODE_STBC <<
+ RSPEC_STF_SHIFT) | (stc <<
+ RSPEC_STC_SHIFT);
+ } else
+ rspec[k] |=
+ (phyctl1_stf << RSPEC_STF_SHIFT);
+ }
+
+ /* Is the phy configured to use 40MHZ frames? If so then pick the desired txbw */
+ if (CHSPEC_WLC_BW(wlc->chanspec) == WLC_40_MHZ) {
+ /* default txbw is 20in40 SB */
+ mimo_ctlchbw = mimo_txbw =
+ CHSPEC_SB_UPPER(WLC_BAND_PI_RADIO_CHANSPEC)
+ ? PHY_TXC1_BW_20MHZ_UP : PHY_TXC1_BW_20MHZ;
+
+ if (IS_MCS(rspec[k])) {
+ /* mcs 32 must be 40b/w DUP */
+ if ((rspec[k] & RSPEC_RATE_MASK) == 32) {
+ mimo_txbw =
+ PHY_TXC1_BW_40MHZ_DUP;
+ /* use override */
+ } else if (wlc->mimo_40txbw != AUTO)
+ mimo_txbw = wlc->mimo_40txbw;
+ /* else check if dst is using 40 Mhz */
+ else if (scb->flags & SCB_IS40)
+ mimo_txbw = PHY_TXC1_BW_40MHZ;
+ } else if (IS_OFDM(rspec[k])) {
+ if (wlc->ofdm_40txbw != AUTO)
+ mimo_txbw = wlc->ofdm_40txbw;
+ } else {
+ ASSERT(IS_CCK(rspec[k]));
+ if (wlc->cck_40txbw != AUTO)
+ mimo_txbw = wlc->cck_40txbw;
+ }
+ } else {
+ /* mcs32 is 40 b/w only.
+ * This is possible for probe packets on a STA during SCAN
+ */
+ if ((rspec[k] & RSPEC_RATE_MASK) == 32) {
+ /* mcs 0 */
+ rspec[k] = RSPEC_MIMORATE;
+ }
+ mimo_txbw = PHY_TXC1_BW_20MHZ;
+ }
+
+ /* Set channel width */
+ rspec[k] &= ~RSPEC_BW_MASK;
+ if ((k == 0) || ((k > 0) && IS_MCS(rspec[k])))
+ rspec[k] |= (mimo_txbw << RSPEC_BW_SHIFT);
+ else
+ rspec[k] |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
+
+ /* Set Short GI */
+#ifdef NOSGIYET
+ if (IS_MCS(rspec[k])
+ && (txrate[k]->flags & IEEE80211_TX_RC_SHORT_GI))
+ rspec[k] |= RSPEC_SHORT_GI;
+ else if (!(txrate[k]->flags & IEEE80211_TX_RC_SHORT_GI))
+ rspec[k] &= ~RSPEC_SHORT_GI;
+#else
+ rspec[k] &= ~RSPEC_SHORT_GI;
+#endif
+
+ mimo_preamble_type = WLC_MM_PREAMBLE;
+ if (txrate[k]->flags & IEEE80211_TX_RC_GREEN_FIELD)
+ mimo_preamble_type = WLC_GF_PREAMBLE;
+
+ if ((txrate[k]->flags & IEEE80211_TX_RC_MCS)
+ && (!IS_MCS(rspec[k]))) {
+ WL_ERROR("wl%d: %s: IEEE80211_TX_RC_MCS != IS_MCS(rspec)\n",
+ WLCWLUNIT(wlc), __func__);
+ ASSERT(0 && "Rate mismatch");
+ }
+
+ if (IS_MCS(rspec[k])) {
+ preamble_type[k] = mimo_preamble_type;
+
+ /* if SGI is selected, then forced mm for single stream */
+ if ((rspec[k] & RSPEC_SHORT_GI)
+ && IS_SINGLE_STREAM(rspec[k] &
+ RSPEC_RATE_MASK)) {
+ preamble_type[k] = WLC_MM_PREAMBLE;
+ }
+ }
+
+ /* mimo bw field MUST now be valid in the rspec (it affects duration calculations) */
+ ASSERT(VALID_RATE_DBG(wlc, rspec[0]));
+
+ /* should be better conditionalized */
+ if (!IS_MCS(rspec[0])
+ && (tx_info->control.rates[0].
+ flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE))
+ preamble_type[k] = WLC_SHORT_PREAMBLE;
+
+ ASSERT(!IS_MCS(rspec[0])
+ || WLC_IS_MIMO_PREAMBLE(preamble_type[k]));
+ }
+ } else {
+ for (k = 0; k < hw->max_rates; k++) {
+ /* Set ctrlchbw as 20Mhz */
+ ASSERT(!IS_MCS(rspec[k]));
+ rspec[k] &= ~RSPEC_BW_MASK;
+ rspec[k] |= (PHY_TXC1_BW_20MHZ << RSPEC_BW_SHIFT);
+
+ /* for nphy, stf of ofdm frames must follow policies */
+ if (WLCISNPHY(wlc->band) && IS_OFDM(rspec[k])) {
+ rspec[k] &= ~RSPEC_STF_MASK;
+ rspec[k] |= phyctl1_stf << RSPEC_STF_SHIFT;
+ }
+ }
+ }
+
+ /* Reset these for use with AMPDU's */
+ txrate[0]->count = 0;
+ txrate[1]->count = 0;
+
+ /* (3) PLCP: determine PLCP header and MAC duration, fill d11txh_t */
+ wlc_compute_plcp(wlc, rspec[0], phylen, plcp);
+ wlc_compute_plcp(wlc, rspec[1], phylen, plcp_fallback);
+ bcopy(plcp_fallback, (char *)&txh->FragPLCPFallback,
+ sizeof(txh->FragPLCPFallback));
+
+ /* Length field now put in CCK FBR CRC field */
+ if (IS_CCK(rspec[1])) {
+ txh->FragPLCPFallback[4] = phylen & 0xff;
+ txh->FragPLCPFallback[5] = (phylen & 0xff00) >> 8;
+ }
+
+ /* MIMO-RATE: need validation ?? */
+ mainrates =
+ IS_OFDM(rspec[0]) ? D11A_PHY_HDR_GRATE((ofdm_phy_hdr_t *) plcp) :
+ plcp[0];
+
+ /* DUR field for main rate */
+ if ((fc != FC_PS_POLL) &&
+ !is_multicast_ether_addr(h->a1.octet) && !use_rifs) {
+ durid =
+ wlc_compute_frame_dur(wlc, rspec[0], preamble_type[0],
+ next_frag_len);
+ h->durid = htol16(durid);
+ } else if (use_rifs) {
+ /* NAV protect to end of next max packet size */
+ durid =
+ (u16) wlc_calc_frame_time(wlc, rspec[0],
+ preamble_type[0],
+ DOT11_MAX_FRAG_LEN);
+ durid += RIFS_11N_TIME;
+ h->durid = htol16(durid);
+ }
+
+ /* DUR field for fallback rate */
+ if (fc == FC_PS_POLL)
+ txh->FragDurFallback = h->durid;
+ else if (is_multicast_ether_addr(h->a1.octet) || use_rifs)
+ txh->FragDurFallback = 0;
+ else {
+ durid = wlc_compute_frame_dur(wlc, rspec[1],
+ preamble_type[1], next_frag_len);
+ txh->FragDurFallback = htol16(durid);
+ }
+
+ /* (4) MAC-HDR: MacTxControlLow */
+ if (frag == 0)
+ mcl |= TXC_STARTMSDU;
+
+ if (!is_multicast_ether_addr(h->a1.octet))
+ mcl |= TXC_IMMEDACK;
+
+ if (BAND_5G(wlc->band->bandtype))
+ mcl |= TXC_FREQBAND_5G;
+
+ if (CHSPEC_IS40(WLC_BAND_PI_RADIO_CHANSPEC))
+ mcl |= TXC_BW_40;
+
+ /* set AMIC bit if using hardware TKIP MIC */
+ if (hwtkmic)
+ mcl |= TXC_AMIC;
+
+ txh->MacTxControlLow = htol16(mcl);
+
+ /* MacTxControlHigh */
+ mch = 0;
+
+ /* Set fallback rate preamble type */
+ if ((preamble_type[1] == WLC_SHORT_PREAMBLE) ||
+ (preamble_type[1] == WLC_GF_PREAMBLE)) {
+ ASSERT((preamble_type[1] == WLC_GF_PREAMBLE) ||
+ (!IS_MCS(rspec[1])));
+ if (RSPEC2RATE(rspec[1]) != WLC_RATE_1M)
+ mch |= TXC_PREAMBLE_DATA_FB_SHORT;
+ }
+
+ /* MacFrameControl */
+ bcopy((char *)&h->fc, (char *)&txh->MacFrameControl, sizeof(u16));
+
+ txh->TxFesTimeNormal = htol16(0);
+
+ txh->TxFesTimeFallback = htol16(0);
+
+ /* TxFrameRA */
+ bcopy((char *)&h->a1, (char *)&txh->TxFrameRA, ETH_ALEN);
+
+ /* TxFrameID */
+ txh->TxFrameID = htol16(frameid);
+
+ /* TxStatus, Note the case of recreating the first frag of a suppressed frame
+ * then we may need to reset the retry cnt's via the status reg
+ */
+ txh->TxStatus = htol16(status);
+
+ if (D11REV_GE(wlc->pub->corerev, 16)) {
+ /* extra fields for ucode AMPDU aggregation, the new fields are added to
+ * the END of previous structure so that it's compatible in driver.
+ * In old rev ucode, these fields should be ignored
+ */
+ txh->MaxNMpdus = htol16(0);
+ txh->MaxABytes_MRT = htol16(0);
+ txh->MaxABytes_FBR = htol16(0);
+ txh->MinMBytes = htol16(0);
+ }
+
+ /* (5) RTS/CTS: determine RTS/CTS PLCP header and MAC duration, furnish d11txh_t */
+ /* RTS PLCP header and RTS frame */
+ if (use_rts || use_cts) {
+ if (use_rts && use_cts)
+ use_cts = false;
+
+ for (k = 0; k < 2; k++) {
+ rts_rspec[k] = wlc_rspec_to_rts_rspec(wlc, rspec[k],
+ false,
+ mimo_ctlchbw);
+ }
+
+ if (!IS_OFDM(rts_rspec[0]) &&
+ !((RSPEC2RATE(rts_rspec[0]) == WLC_RATE_1M) ||
+ (wlc->PLCPHdr_override == WLC_PLCP_LONG))) {
+ rts_preamble_type[0] = WLC_SHORT_PREAMBLE;
+ mch |= TXC_PREAMBLE_RTS_MAIN_SHORT;
+ }
+
+ if (!IS_OFDM(rts_rspec[1]) &&
+ !((RSPEC2RATE(rts_rspec[1]) == WLC_RATE_1M) ||
+ (wlc->PLCPHdr_override == WLC_PLCP_LONG))) {
+ rts_preamble_type[1] = WLC_SHORT_PREAMBLE;
+ mch |= TXC_PREAMBLE_RTS_FB_SHORT;
+ }
+
+ /* RTS/CTS additions to MacTxControlLow */
+ if (use_cts) {
+ txh->MacTxControlLow |= htol16(TXC_SENDCTS);
+ } else {
+ txh->MacTxControlLow |= htol16(TXC_SENDRTS);
+ txh->MacTxControlLow |= htol16(TXC_LONGFRAME);
+ }
+
+ /* RTS PLCP header */
+ ASSERT(IS_ALIGNED((unsigned long)txh->RTSPhyHeader, sizeof(u16)));
+ rts_plcp = txh->RTSPhyHeader;
+ if (use_cts)
+ rts_phylen = DOT11_CTS_LEN + DOT11_FCS_LEN;
+ else
+ rts_phylen = DOT11_RTS_LEN + DOT11_FCS_LEN;
+
+ wlc_compute_plcp(wlc, rts_rspec[0], rts_phylen, rts_plcp);
+
+ /* fallback rate version of RTS PLCP header */
+ wlc_compute_plcp(wlc, rts_rspec[1], rts_phylen,
+ rts_plcp_fallback);
+ bcopy(rts_plcp_fallback, (char *)&txh->RTSPLCPFallback,
+ sizeof(txh->RTSPLCPFallback));
+
+ /* RTS frame fields... */
+ rts = (struct dot11_rts_frame *)&txh->rts_frame;
+
+ durid = wlc_compute_rtscts_dur(wlc, use_cts, rts_rspec[0],
+ rspec[0], rts_preamble_type[0],
+ preamble_type[0], phylen, false);
+ rts->durid = htol16(durid);
+ /* fallback rate version of RTS DUR field */
+ durid = wlc_compute_rtscts_dur(wlc, use_cts,
+ rts_rspec[1], rspec[1],
+ rts_preamble_type[1],
+ preamble_type[1], phylen, false);
+ txh->RTSDurFallback = htol16(durid);
+
+ if (use_cts) {
+ rts->fc = htol16(FC_CTS);
+ bcopy((char *)&h->a2, (char *)&rts->ra, ETH_ALEN);
+ } else {
+ rts->fc = htol16((u16) FC_RTS);
+ bcopy((char *)&h->a1, (char *)&rts->ra,
+ 2 * ETH_ALEN);
+ }
+
+ /* mainrate
+ * low 8 bits: main frag rate/mcs,
+ * high 8 bits: rts/cts rate/mcs
+ */
+ mainrates |= (IS_OFDM(rts_rspec[0]) ?
+ D11A_PHY_HDR_GRATE((ofdm_phy_hdr_t *) rts_plcp) :
+ rts_plcp[0]) << 8;
+ } else {
+ memset((char *)txh->RTSPhyHeader, 0, D11_PHY_HDR_LEN);
+ memset((char *)&txh->rts_frame, 0,
+ sizeof(struct dot11_rts_frame));
+ memset((char *)txh->RTSPLCPFallback, 0,
+ sizeof(txh->RTSPLCPFallback));
+ txh->RTSDurFallback = 0;
+ }
+
+#ifdef SUPPORT_40MHZ
+ /* add null delimiter count */
+ if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && IS_MCS(rspec)) {
+ txh->RTSPLCPFallback[AMPDU_FBR_NULL_DELIM] =
+ wlc_ampdu_null_delim_cnt(wlc->ampdu, scb, rspec, phylen);
+ }
+#endif
+
+ /* Now that RTS/RTS FB preamble types are updated, write the final value */
+ txh->MacTxControlHigh = htol16(mch);
+
+ /* MainRates (both the rts and frag plcp rates have been calculated now) */
+ txh->MainRates = htol16(mainrates);
+
+ /* XtraFrameTypes */
+ xfts = FRAMETYPE(rspec[1], wlc->mimoft);
+ xfts |= (FRAMETYPE(rts_rspec[0], wlc->mimoft) << XFTS_RTS_FT_SHIFT);
+ xfts |= (FRAMETYPE(rts_rspec[1], wlc->mimoft) << XFTS_FBRRTS_FT_SHIFT);
+ xfts |=
+ CHSPEC_CHANNEL(WLC_BAND_PI_RADIO_CHANSPEC) << XFTS_CHANNEL_SHIFT;
+ txh->XtraFrameTypes = htol16(xfts);
+
+ /* PhyTxControlWord */
+ phyctl = FRAMETYPE(rspec[0], wlc->mimoft);
+ if ((preamble_type[0] == WLC_SHORT_PREAMBLE) ||
+ (preamble_type[0] == WLC_GF_PREAMBLE)) {
+ ASSERT((preamble_type[0] == WLC_GF_PREAMBLE)
+ || !IS_MCS(rspec[0]));
+ if (RSPEC2RATE(rspec[0]) != WLC_RATE_1M)
+ phyctl |= PHY_TXC_SHORT_HDR;
+ WLCNTINCR(wlc->pub->_cnt->txprshort);
+ }
+
+ /* phytxant is properly bit shifted */
+ phyctl |= wlc_stf_d11hdrs_phyctl_txant(wlc, rspec[0]);
+ txh->PhyTxControlWord = htol16(phyctl);
+
+ /* PhyTxControlWord_1 */
+ if (WLC_PHY_11N_CAP(wlc->band)) {
+ u16 phyctl1 = 0;
+
+ phyctl1 = wlc_phytxctl1_calc(wlc, rspec[0]);
+ txh->PhyTxControlWord_1 = htol16(phyctl1);
+ phyctl1 = wlc_phytxctl1_calc(wlc, rspec[1]);
+ txh->PhyTxControlWord_1_Fbr = htol16(phyctl1);
+
+ if (use_rts || use_cts) {
+ phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[0]);
+ txh->PhyTxControlWord_1_Rts = htol16(phyctl1);
+ phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[1]);
+ txh->PhyTxControlWord_1_FbrRts = htol16(phyctl1);
+ }
+
+ /*
+ * For mcs frames, if mixedmode(overloaded with long preamble) is going to be set,
+ * fill in non-zero MModeLen and/or MModeFbrLen
+ * it will be unnecessary if they are separated
+ */
+ if (IS_MCS(rspec[0]) && (preamble_type[0] == WLC_MM_PREAMBLE)) {
+ u16 mmodelen =
+ wlc_calc_lsig_len(wlc, rspec[0], phylen);
+ txh->MModeLen = htol16(mmodelen);
+ }
+
+ if (IS_MCS(rspec[1]) && (preamble_type[1] == WLC_MM_PREAMBLE)) {
+ u16 mmodefbrlen =
+ wlc_calc_lsig_len(wlc, rspec[1], phylen);
+ txh->MModeFbrLen = htol16(mmodefbrlen);
+ }
+ }
+
+ if (IS_MCS(rspec[0]))
+ ASSERT(IS_MCS(rspec[1]));
+
+ ASSERT(!IS_MCS(rspec[0]) ||
+ ((preamble_type[0] == WLC_MM_PREAMBLE) == (txh->MModeLen != 0)));
+ ASSERT(!IS_MCS(rspec[1]) ||
+ ((preamble_type[1] == WLC_MM_PREAMBLE) ==
+ (txh->MModeFbrLen != 0)));
+
+ ac = wme_fifo2ac[queue];
+ if (SCB_WME(scb) && qos && wlc->edcf_txop[ac]) {
+ uint frag_dur, dur, dur_fallback;
+
+ ASSERT(!is_multicast_ether_addr(h->a1.octet));
+
+ /* WME: Update TXOP threshold */
+ if ((!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) && (frag == 0)) {
+ frag_dur =
+ wlc_calc_frame_time(wlc, rspec[0], preamble_type[0],
+ phylen);
+
+ if (rts) {
+ /* 1 RTS or CTS-to-self frame */
+ dur =
+ wlc_calc_cts_time(wlc, rts_rspec[0],
+ rts_preamble_type[0]);
+ dur_fallback =
+ wlc_calc_cts_time(wlc, rts_rspec[1],
+ rts_preamble_type[1]);
+ /* (SIFS + CTS) + SIFS + frame + SIFS + ACK */
+ dur += ltoh16(rts->durid);
+ dur_fallback += ltoh16(txh->RTSDurFallback);
+ } else if (use_rifs) {
+ dur = frag_dur;
+ dur_fallback = 0;
+ } else {
+ /* frame + SIFS + ACK */
+ dur = frag_dur;
+ dur +=
+ wlc_compute_frame_dur(wlc, rspec[0],
+ preamble_type[0], 0);
+
+ dur_fallback =
+ wlc_calc_frame_time(wlc, rspec[1],
+ preamble_type[1],
+ phylen);
+ dur_fallback +=
+ wlc_compute_frame_dur(wlc, rspec[1],
+ preamble_type[1], 0);
+ }
+ /* NEED to set TxFesTimeNormal (hard) */
+ txh->TxFesTimeNormal = htol16((u16) dur);
+ /* NEED to set fallback rate version of TxFesTimeNormal (hard) */
+ txh->TxFesTimeFallback = htol16((u16) dur_fallback);
+
+ /* update txop byte threshold (txop minus intraframe overhead) */
+ if (wlc->edcf_txop[ac] >= (dur - frag_dur)) {
+ {
+ uint newfragthresh;
+
+ newfragthresh =
+ wlc_calc_frame_len(wlc, rspec[0],
+ preamble_type[0],
+ (wlc->
+ edcf_txop[ac] -
+ (dur -
+ frag_dur)));
+ /* range bound the fragthreshold */
+ if (newfragthresh < DOT11_MIN_FRAG_LEN)
+ newfragthresh =
+ DOT11_MIN_FRAG_LEN;
+ else if (newfragthresh >
+ wlc->usr_fragthresh)
+ newfragthresh =
+ wlc->usr_fragthresh;
+ /* update the fragthresh and do txc update */
+ if (wlc->fragthresh[queue] !=
+ (u16) newfragthresh) {
+ wlc->fragthresh[queue] =
+ (u16) newfragthresh;
+ }
+ }
+ } else
+ WL_ERROR("wl%d: %s txop invalid for rate %d\n",
+ wlc->pub->unit, fifo_names[queue],
+ RSPEC2RATE(rspec[0]));
+
+ if (dur > wlc->edcf_txop[ac])
+ WL_ERROR("wl%d: %s: %s txop exceeded phylen %d/%d dur %d/%d\n",
+ wlc->pub->unit, __func__,
+ fifo_names[queue],
+ phylen, wlc->fragthresh[queue],
+ dur, wlc->edcf_txop[ac]);
+ }
+ }
+
+ return 0;
+}
+
+void wlc_tbtt(struct wlc_info *wlc, d11regs_t *regs)
+{
+ wlc_bsscfg_t *cfg = wlc->cfg;
+
+ WLCNTINCR(wlc->pub->_cnt->tbtt);
+
+ if (BSSCFG_STA(cfg)) {
+ /* run watchdog here if the watchdog timer is not armed */
+ if (WLC_WATCHDOG_TBTT(wlc)) {
+ u32 cur, delta;
+ if (wlc->WDarmed) {
+ wl_del_timer(wlc->wl, wlc->wdtimer);
+ wlc->WDarmed = false;
+ }
+
+ cur = OSL_SYSUPTIME();
+ delta = cur > wlc->WDlast ? cur - wlc->WDlast :
+ (u32) ~0 - wlc->WDlast + cur + 1;
+ if (delta >= TIMER_INTERVAL_WATCHDOG) {
+ wlc_watchdog((void *)wlc);
+ wlc->WDlast = cur;
+ }
+
+ wl_add_timer(wlc->wl, wlc->wdtimer,
+ wlc_watchdog_backup_bi(wlc), true);
+ wlc->WDarmed = true;
+ }
+ }
+
+ if (!cfg->BSS) {
+ /* DirFrmQ is now valid...defer setting until end of ATIM window */
+ wlc->qvalid |= MCMD_DIRFRMQVAL;
+ }
+}
+
+/* GP timer is a freerunning 32 bit counter, decrements at 1 us rate */
+void wlc_hwtimer_gptimer_set(struct wlc_info *wlc, uint us)
+{
+ ASSERT(wlc->pub->corerev >= 3); /* no gptimer in earlier revs */
+ W_REG(wlc->osh, &wlc->regs->gptimer, us);
+}
+
+void wlc_hwtimer_gptimer_abort(struct wlc_info *wlc)
+{
+ ASSERT(wlc->pub->corerev >= 3);
+ W_REG(wlc->osh, &wlc->regs->gptimer, 0);
+}
+
+static void wlc_hwtimer_gptimer_cb(struct wlc_info *wlc)
+{
+ /* when interrupt is generated, the counter is loaded with last value
+ * written and continue to decrement. So it has to be cleaned first
+ */
+ W_REG(wlc->osh, &wlc->regs->gptimer, 0);
+}
+
+/*
+ * This fn has all the high level dpc processing from wlc_dpc.
+ * POLICY: no macinstatus change, no bounding loop.
+ * All dpc bounding should be handled in BMAC dpc, like txstatus and rxint
+ */
+void wlc_high_dpc(struct wlc_info *wlc, u32 macintstatus)
+{
+ d11regs_t *regs = wlc->regs;
+#ifdef BCMDBG
+ char flagstr[128];
+ static const bcm_bit_desc_t int_flags[] = {
+ {MI_MACSSPNDD, "MACSSPNDD"},
+ {MI_BCNTPL, "BCNTPL"},
+ {MI_TBTT, "TBTT"},
+ {MI_BCNSUCCESS, "BCNSUCCESS"},
+ {MI_BCNCANCLD, "BCNCANCLD"},
+ {MI_ATIMWINEND, "ATIMWINEND"},
+ {MI_PMQ, "PMQ"},
+ {MI_NSPECGEN_0, "NSPECGEN_0"},
+ {MI_NSPECGEN_1, "NSPECGEN_1"},
+ {MI_MACTXERR, "MACTXERR"},
+ {MI_NSPECGEN_3, "NSPECGEN_3"},
+ {MI_PHYTXERR, "PHYTXERR"},
+ {MI_PME, "PME"},
+ {MI_GP0, "GP0"},
+ {MI_GP1, "GP1"},
+ {MI_DMAINT, "DMAINT"},
+ {MI_TXSTOP, "TXSTOP"},
+ {MI_CCA, "CCA"},
+ {MI_BG_NOISE, "BG_NOISE"},
+ {MI_DTIM_TBTT, "DTIM_TBTT"},
+ {MI_PRQ, "PRQ"},
+ {MI_PWRUP, "PWRUP"},
+ {MI_RFDISABLE, "RFDISABLE"},
+ {MI_TFS, "TFS"},
+ {MI_PHYCHANGED, "PHYCHANGED"},
+ {MI_TO, "TO"},
+ {0, NULL}
+ };
+
+ if (macintstatus & ~(MI_TBTT | MI_TXSTOP)) {
+ bcm_format_flags(int_flags, macintstatus, flagstr,
+ sizeof(flagstr));
+ WL_TRACE("wl%d: macintstatus 0x%x %s\n",
+ wlc->pub->unit, macintstatus, flagstr);
+ }
+#endif /* BCMDBG */
+
+ if (macintstatus & MI_PRQ) {
+ /* Process probe request FIFO */
+ ASSERT(0 && "PRQ Interrupt in non-MBSS");
+ }
+
+ /* TBTT indication */
+ /* ucode only gives either TBTT or DTIM_TBTT, not both */
+ if (macintstatus & (MI_TBTT | MI_DTIM_TBTT))
+ wlc_tbtt(wlc, regs);
+
+ if (macintstatus & MI_GP0) {
+ WL_ERROR("wl%d: PSM microcode watchdog fired at %d (seconds). Resetting.\n",
+ wlc->pub->unit, wlc->pub->now);
+
+ printk_once("%s : PSM Watchdog, chipid 0x%x, chiprev 0x%x\n",
+ __func__, wlc->pub->sih->chip,
+ wlc->pub->sih->chiprev);
+
+ WLCNTINCR(wlc->pub->_cnt->psmwds);
+
+ /* big hammer */
+ wl_init(wlc->wl);
+ }
+
+ /* gptimer timeout */
+ if (macintstatus & MI_TO) {
+ wlc_hwtimer_gptimer_cb(wlc);
+ }
+
+ if (macintstatus & MI_RFDISABLE) {
+ WL_ERROR("wl%d: MAC Detected a change on the RF Disable Input 0x%x\n",
+ wlc->pub->unit,
+ R_REG(wlc->osh, ®s->phydebug) & PDBG_RFD);
+ /* delay the cleanup to wl_down in IBSS case */
+ if ((R_REG(wlc->osh, ®s->phydebug) & PDBG_RFD)) {
+ int idx;
+ wlc_bsscfg_t *bsscfg;
+ FOREACH_BSS(wlc, idx, bsscfg) {
+ if (!BSSCFG_STA(bsscfg) || !bsscfg->enable
+ || !bsscfg->BSS)
+ continue;
+ WL_ERROR("wl%d: wlc_dpc: rfdisable -> wlc_bsscfg_disable()\n",
+ wlc->pub->unit);
+ }
+ }
+ }
+
+ /* send any enq'd tx packets. Just makes sure to jump start tx */
+ if (!pktq_empty(&wlc->active_queue->q))
+ wlc_send_q(wlc, wlc->active_queue);
+
+ ASSERT(wlc_ps_check(wlc));
+}
+
+static void *wlc_15420war(struct wlc_info *wlc, uint queue)
+{
+ struct hnddma_pub *di;
+ void *p;
+
+ ASSERT(queue < NFIFO);
+
+ if ((D11REV_IS(wlc->pub->corerev, 4))
+ || (D11REV_GT(wlc->pub->corerev, 6)))
+ return NULL;
+
+ di = wlc->hw->di[queue];
+ ASSERT(di != NULL);
+
+ /* get next packet, ignoring XmtStatus.Curr */
+ p = dma_getnexttxp(di, HNDDMA_RANGE_ALL);
+
+ /* sw block tx dma */
+ dma_txblock(di);
+
+ /* if tx ring is now empty, reset and re-init the tx dma channel */
+ if (dma_txactive(wlc->hw->di[queue]) == 0) {
+ WLCNTINCR(wlc->pub->_cnt->txdmawar);
+ if (!dma_txreset(di))
+ WL_ERROR("wl%d: %s: dma_txreset[%d]: cannot stop dma\n",
+ wlc->pub->unit, __func__, queue);
+ dma_txinit(di);
+ }
+ return p;
+}
+
+static void wlc_war16165(struct wlc_info *wlc, bool tx)
+{
+ if (tx) {
+ /* the post-increment is used in STAY_AWAKE macro */
+ if (wlc->txpend16165war++ == 0)
+ wlc_set_ps_ctrl(wlc);
+ } else {
+ wlc->txpend16165war--;
+ if (wlc->txpend16165war == 0)
+ wlc_set_ps_ctrl(wlc);
+ }
+}
+
+/* process an individual tx_status_t */
+/* WLC_HIGH_API */
+bool BCMFASTPATH
+wlc_dotxstatus(struct wlc_info *wlc, tx_status_t *txs, u32 frm_tx2)
+{
+ struct sk_buff *p;
+ uint queue;
+ d11txh_t *txh;
+ struct scb *scb = NULL;
+ bool free_pdu;
+ struct osl_info *osh;
+ int tx_rts, tx_frame_count, tx_rts_count;
+ uint totlen, supr_status;
+ bool lastframe;
+ struct dot11_header *h;
+ u16 fc;
+ u16 mcl;
+ struct ieee80211_tx_info *tx_info;
+ struct ieee80211_tx_rate *txrate;
+ int i;
+
+ (void)(frm_tx2); /* Compiler reference to avoid unused variable warning */
+
+ /* discard intermediate indications for ucode with one legitimate case:
+ * e.g. if "useRTS" is set. ucode did a successful rts/cts exchange, but the subsequent
+ * tx of DATA failed. so it will start rts/cts from the beginning (resetting the rts
+ * transmission count)
+ */
+ if (!(txs->status & TX_STATUS_AMPDU)
+ && (txs->status & TX_STATUS_INTERMEDIATE)) {
+ WLCNTADD(wlc->pub->_cnt->txnoack,
+ ((txs->
+ status & TX_STATUS_FRM_RTX_MASK) >>
+ TX_STATUS_FRM_RTX_SHIFT));
+ WL_ERROR("%s: INTERMEDIATE but not AMPDU\n", __func__);
+ return false;
+ }
+
+ osh = wlc->osh;
+ queue = txs->frameid & TXFID_QUEUE_MASK;
+ ASSERT(queue < NFIFO);
+ if (queue >= NFIFO) {
+ p = NULL;
+ goto fatal;
+ }
+
+ p = GETNEXTTXP(wlc, queue);
+ if (WLC_WAR16165(wlc))
+ wlc_war16165(wlc, false);
+ if (p == NULL)
+ p = wlc_15420war(wlc, queue);
+ ASSERT(p != NULL);
+ if (p == NULL)
+ goto fatal;
+
+ txh = (d11txh_t *) (p->data);
+ mcl = ltoh16(txh->MacTxControlLow);
+
+ if (txs->phyerr) {
+ WL_ERROR("phyerr 0x%x, rate 0x%x\n",
+ txs->phyerr, txh->MainRates);
+ wlc_print_txdesc(txh);
+ wlc_print_txstatus(txs);
+ }
+
+ ASSERT(txs->frameid == htol16(txh->TxFrameID));
+ if (txs->frameid != htol16(txh->TxFrameID))
+ goto fatal;
+
+ tx_info = IEEE80211_SKB_CB(p);
+ h = (struct dot11_header *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
+ fc = ltoh16(h->fc);
+
+ scb = (struct scb *)tx_info->control.sta->drv_priv;
+
+ if (N_ENAB(wlc->pub)) {
+ u8 *plcp = (u8 *) (txh + 1);
+ if (PLCP3_ISSGI(plcp[3]))
+ WLCNTINCR(wlc->pub->_cnt->txmpdu_sgi);
+ if (PLCP3_ISSTBC(plcp[3]))
+ WLCNTINCR(wlc->pub->_cnt->txmpdu_stbc);
+ }
+
+ if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+ ASSERT((mcl & TXC_AMPDU_MASK) != TXC_AMPDU_NONE);
+ wlc_ampdu_dotxstatus(wlc->ampdu, scb, p, txs);
+ return false;
+ }
+
+ supr_status = txs->status & TX_STATUS_SUPR_MASK;
+ if (supr_status == TX_STATUS_SUPR_BADCH)
+ WL_NONE("%s: Pkt tx suppressed, possibly channel %d\n",
+ __func__, CHSPEC_CHANNEL(wlc->default_bss->chanspec));
+
+ tx_rts = htol16(txh->MacTxControlLow) & TXC_SENDRTS;
+ tx_frame_count =
+ (txs->status & TX_STATUS_FRM_RTX_MASK) >> TX_STATUS_FRM_RTX_SHIFT;
+ tx_rts_count =
+ (txs->status & TX_STATUS_RTS_RTX_MASK) >> TX_STATUS_RTS_RTX_SHIFT;
+
+ lastframe = (fc & FC_MOREFRAG) == 0;
+
+ if (!lastframe) {
+ WL_ERROR("Not last frame!\n");
+ } else {
+ u16 sfbl, lfbl;
+ ieee80211_tx_info_clear_status(tx_info);
+ if (queue < AC_COUNT) {
+ sfbl = WLC_WME_RETRY_SFB_GET(wlc, wme_fifo2ac[queue]);
+ lfbl = WLC_WME_RETRY_LFB_GET(wlc, wme_fifo2ac[queue]);
+ } else {
+ sfbl = wlc->SFBL;
+ lfbl = wlc->LFBL;
+ }
+
+ txrate = tx_info->status.rates;
+ /* FIXME: this should use a combination of sfbl, lfbl depending on frame length and RTS setting */
+ if ((tx_frame_count > sfbl) && (txrate[1].idx >= 0)) {
+ /* rate selection requested a fallback rate and we used it */
+ txrate->count = lfbl;
+ txrate[1].count = tx_frame_count - lfbl;
+ } else {
+ /* rate selection did not request fallback rate, or we didn't need it */
+ txrate->count = tx_frame_count;
+ /* rc80211_minstrel.c:minstrel_tx_status() expects unused rates to be marked with idx = -1 */
+ txrate[1].idx = -1;
+ txrate[1].count = 0;
+ }
+
+ /* clear the rest of the rates */
+ for (i = 2; i < IEEE80211_TX_MAX_RATES; i++) {
+ txrate[i].idx = -1;
+ txrate[i].count = 0;
+ }
+
+ if (txs->status & TX_STATUS_ACK_RCV)
+ tx_info->flags |= IEEE80211_TX_STAT_ACK;
+ }
+
+ totlen = pkttotlen(osh, p);
+ free_pdu = true;
+
+ wlc_txfifo_complete(wlc, queue, 1);
+
+ if (lastframe) {
+ p->next = NULL;
+ p->prev = NULL;
+ wlc->txretried = 0;
+ /* remove PLCP & Broadcom tx descriptor header */
+ skb_pull(p, D11_PHY_HDR_LEN);
+ skb_pull(p, D11_TXH_LEN);
+ ieee80211_tx_status_irqsafe(wlc->pub->ieee_hw, p);
+ WLCNTINCR(wlc->pub->_cnt->ieee_tx_status);
+ } else {
+ WL_ERROR("%s: Not last frame => not calling tx_status\n",
+ __func__);
+ }
+
+ return false;
+
+ fatal:
+ ASSERT(0);
+ if (p)
+ pkt_buf_free_skb(osh, p, true);
+
+ return true;
+
+}
+
+void BCMFASTPATH
+wlc_txfifo_complete(struct wlc_info *wlc, uint fifo, s8 txpktpend)
+{
+ TXPKTPENDDEC(wlc, fifo, txpktpend);
+ WL_TRACE("wlc_txfifo_complete, pktpend dec %d to %d\n",
+ txpktpend, TXPKTPENDGET(wlc, fifo));
+
+ /* There is more room; mark precedences related to this FIFO sendable */
+ WLC_TX_FIFO_ENAB(wlc, fifo);
+ ASSERT(TXPKTPENDGET(wlc, fifo) >= 0);
+
+ if (!TXPKTPENDTOT(wlc)) {
+ if (wlc->block_datafifo & DATA_BLOCK_TX_SUPR)
+ wlc_bsscfg_tx_check(wlc);
+ }
+
+ /* Clear MHF2_TXBCMC_NOW flag if BCMC fifo has drained */
+ if (AP_ENAB(wlc->pub) &&
+ wlc->bcmcfifo_drain && !TXPKTPENDGET(wlc, TX_BCMC_FIFO)) {
+ wlc->bcmcfifo_drain = false;
+ wlc_mhf(wlc, MHF2, MHF2_TXBCMC_NOW, 0, WLC_BAND_AUTO);
+ }
+
+ /* figure out which bsscfg is being worked on... */
+}
+
+/* Given the beacon interval in kus, and a 64 bit TSF in us,
+ * return the offset (in us) of the TSF from the last TBTT
+ */
+u32 wlc_calc_tbtt_offset(u32 bp, u32 tsf_h, u32 tsf_l)
+{
+ u32 k, btklo, btkhi, offset;
+
+ /* TBTT is always an even multiple of the beacon_interval,
+ * so the TBTT less than or equal to the beacon timestamp is
+ * the beacon timestamp minus the beacon timestamp modulo
+ * the beacon interval.
+ *
+ * TBTT = BT - (BT % BIu)
+ * = (BTk - (BTk % BP)) * 2^10
+ *
+ * BT = beacon timestamp (usec, 64bits)
+ * BTk = beacon timestamp (Kusec, 54bits)
+ * BP = beacon interval (Kusec, 16bits)
+ * BIu = BP * 2^10 = beacon interval (usec, 26bits)
+ *
+ * To keep the calculations in u32s, the modulo operation
+ * on the high part of BT needs to be done in parts using the
+ * relations:
+ * X*Y mod Z = ((X mod Z) * (Y mod Z)) mod Z
+ * and
+ * (X + Y) mod Z = ((X mod Z) + (Y mod Z)) mod Z
+ *
+ * So, if BTk[n] = u16 n [0,3] of BTk.
+ * BTk % BP = SUM((BTk[n] * 2^16n) % BP , 0<=n<4) % BP
+ * and the SUM term can be broken down:
+ * (BTk[n] * 2^16n) % BP
+ * (BTk[n] * (2^16n % BP)) % BP
+ *
+ * Create a set of power of 2 mod BP constants:
+ * K[n] = 2^(16n) % BP
+ * = (K[n-1] * 2^16) % BP
+ * K[2] = 2^32 % BP = ((2^16 % BP) * 2^16) % BP
+ *
+ * BTk % BP = BTk[0-1] % BP +
+ * (BTk[2] * K[2]) % BP +
+ * (BTk[3] * K[3]) % BP
+ *
+ * Since K[n] < 2^16 and BTk[n] is < 2^16, then BTk[n] * K[n] < 2^32
+ */
+
+ /* BTk = BT >> 10, btklo = BTk[0-3], bkthi = BTk[4-6] */
+ btklo = (tsf_h << 22) | (tsf_l >> 10);
+ btkhi = tsf_h >> 10;
+
+ /* offset = BTk % BP */
+ offset = btklo % bp;
+
+ /* K[2] = ((2^16 % BP) * 2^16) % BP */
+ k = (u32) (1 << 16) % bp;
+ k = (u32) (k * 1 << 16) % (u32) bp;
+
+ /* offset += (BTk[2] * K[2]) % BP */
+ offset += ((btkhi & 0xffff) * k) % bp;
+
+ /* BTk[3] */
+ btkhi = btkhi >> 16;
+
+ /* k[3] = (K[2] * 2^16) % BP */
+ k = (k << 16) % bp;
+
+ /* offset += (BTk[3] * K[3]) % BP */
+ offset += ((btkhi & 0xffff) * k) % bp;
+
+ offset = offset % bp;
+
+ /* convert offset from kus to us by shifting up 10 bits and
+ * add in the low 10 bits of tsf that we ignored
+ */
+ offset = (offset << 10) + (tsf_l & 0x3FF);
+
+ return offset;
+}
+
+/* Update beacon listen interval in shared memory */
+void wlc_bcn_li_upd(struct wlc_info *wlc)
+{
+ if (AP_ENAB(wlc->pub))
+ return;
+
+ /* wake up every DTIM is the default */
+ if (wlc->bcn_li_dtim == 1)
+ wlc_write_shm(wlc, M_BCN_LI, 0);
+ else
+ wlc_write_shm(wlc, M_BCN_LI,
+ (wlc->bcn_li_dtim << 8) | wlc->bcn_li_bcn);
+}
+
+static void
+prep_mac80211_status(struct wlc_info *wlc, d11rxhdr_t *rxh, struct sk_buff *p,
+ struct ieee80211_rx_status *rx_status)
+{
+ u32 tsf_l, tsf_h;
+ wlc_d11rxhdr_t *wlc_rxh = (wlc_d11rxhdr_t *) rxh;
+ int preamble;
+ int channel;
+ ratespec_t rspec;
+ unsigned char *plcp;
+
+ wlc_read_tsf(wlc, &tsf_l, &tsf_h); /* mactime */
+ rx_status->mactime = tsf_h;
+ rx_status->mactime <<= 32;
+ rx_status->mactime |= tsf_l;
+ rx_status->flag |= RX_FLAG_TSFT;
+
+ channel = WLC_CHAN_CHANNEL(rxh->RxChan);
+
+ /* XXX Channel/badn needs to be filtered against whether we are single/dual band card */
+ if (channel > 14) {
+ rx_status->band = IEEE80211_BAND_5GHZ;
+ rx_status->freq = wf_channel2mhz(channel, WF_CHAN_FACTOR_5_G);
+ } else {
+ rx_status->band = IEEE80211_BAND_2GHZ;
+ rx_status->freq = wf_channel2mhz(channel, WF_CHAN_FACTOR_2_4_G);
+ }
+
+ rx_status->signal = wlc_rxh->rssi; /* signal */
+
+ /* noise */
+ /* qual */
+ rx_status->antenna = (rxh->PhyRxStatus_0 & PRXS0_RXANT_UPSUBBAND) ? 1 : 0; /* ant */
+
+ plcp = p->data;
+
+ rspec = wlc_compute_rspec(rxh, plcp);
+ if (IS_MCS(rspec)) {
+ rx_status->rate_idx = rspec & RSPEC_RATE_MASK;
+ rx_status->flag |= RX_FLAG_HT;
+ if (RSPEC_IS40MHZ(rspec))
+ rx_status->flag |= RX_FLAG_40MHZ;
+ } else {
+ switch (RSPEC2RATE(rspec)) {
+ case WLC_RATE_1M:
+ rx_status->rate_idx = 0;
+ break;
+ case WLC_RATE_2M:
+ rx_status->rate_idx = 1;
+ break;
+ case WLC_RATE_5M5:
+ rx_status->rate_idx = 2;
+ break;
+ case WLC_RATE_11M:
+ rx_status->rate_idx = 3;
+ break;
+ case WLC_RATE_6M:
+ rx_status->rate_idx = 4;
+ break;
+ case WLC_RATE_9M:
+ rx_status->rate_idx = 5;
+ break;
+ case WLC_RATE_12M:
+ rx_status->rate_idx = 6;
+ break;
+ case WLC_RATE_18M:
+ rx_status->rate_idx = 7;
+ break;
+ case WLC_RATE_24M:
+ rx_status->rate_idx = 8;
+ break;
+ case WLC_RATE_36M:
+ rx_status->rate_idx = 9;
+ break;
+ case WLC_RATE_48M:
+ rx_status->rate_idx = 10;
+ break;
+ case WLC_RATE_54M:
+ rx_status->rate_idx = 11;
+ break;
+ default:
+ WL_ERROR("%s: Unknown rate\n", __func__);
+ }
+
+ /* Determine short preamble and rate_idx */
+ preamble = 0;
+ if (IS_CCK(rspec)) {
+ if (rxh->PhyRxStatus_0 & PRXS0_SHORTH)
+ WL_ERROR("Short CCK\n");
+ rx_status->flag |= RX_FLAG_SHORTPRE;
+ } else if (IS_OFDM(rspec)) {
+ rx_status->flag |= RX_FLAG_SHORTPRE;
+ } else {
+ WL_ERROR("%s: Unknown modulation\n", __func__);
+ }
+ }
+
+ if (PLCP3_ISSGI(plcp[3]))
+ rx_status->flag |= RX_FLAG_SHORT_GI;
+
+ if (rxh->RxStatus1 & RXS_DECERR) {
+ rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;
+ WL_ERROR("%s: RX_FLAG_FAILED_PLCP_CRC\n", __func__);
+ }
+ if (rxh->RxStatus1 & RXS_FCSERR) {
+ rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
+ WL_ERROR("%s: RX_FLAG_FAILED_FCS_CRC\n", __func__);
+ }
+}
+
+static void
+wlc_recvctl(struct wlc_info *wlc, struct osl_info *osh, d11rxhdr_t *rxh,
+ struct sk_buff *p)
+{
+ int len_mpdu;
+ struct ieee80211_rx_status rx_status;
+#if defined(BCMDBG)
+ struct sk_buff *skb = p;
+#endif /* BCMDBG */
+ /* Todo:
+ * Cache plcp for first MPDU of AMPD and use chacched version for INTERMEDIATE.
+ * Test for INTERMEDIATE like so:
+ * if (!(plcp[0] | plcp[1] | plcp[2]))
+ */
+
+ memset(&rx_status, 0, sizeof(rx_status));
+ prep_mac80211_status(wlc, rxh, p, &rx_status);
+
+ /* mac header+body length, exclude CRC and plcp header */
+ len_mpdu = p->len - D11_PHY_HDR_LEN - DOT11_FCS_LEN;
+ skb_pull(p, D11_PHY_HDR_LEN);
+ __skb_trim(p, len_mpdu);
+
+ ASSERT(!(p->next));
+ ASSERT(!(p->prev));
+
+ ASSERT(IS_ALIGNED((unsigned long)skb->data, 2));
+
+ memcpy(IEEE80211_SKB_RXCB(p), &rx_status, sizeof(rx_status));
+ ieee80211_rx_irqsafe(wlc->pub->ieee_hw, p);
+
+ WLCNTINCR(wlc->pub->_cnt->ieee_rx);
+ osh->pktalloced--;
+ return;
+}
+
+void wlc_bss_list_free(struct wlc_info *wlc, wlc_bss_list_t *bss_list)
+{
+ uint index;
+ wlc_bss_info_t *bi;
+
+ if (!bss_list) {
+ WL_ERROR("%s: Attempting to free NULL list\n", __func__);
+ return;
+ }
+ /* inspect all BSS descriptor */
+ for (index = 0; index < bss_list->count; index++) {
+ bi = bss_list->ptrs[index];
+ if (bi) {
+ if (bi->bcn_prb) {
+ kfree(bi->bcn_prb);
+ }
+ kfree(bi);
+ bss_list->ptrs[index] = NULL;
+ }
+ }
+ bss_list->count = 0;
+}
+
+/* Process received frames */
+/*
+ * Return true if more frames need to be processed. false otherwise.
+ * Param 'bound' indicates max. # frames to process before break out.
+ */
+/* WLC_HIGH_API */
+void BCMFASTPATH wlc_recv(struct wlc_info *wlc, struct sk_buff *p)
+{
+ d11rxhdr_t *rxh;
+ struct dot11_header *h;
+ struct osl_info *osh;
+ u16 fc;
+ uint len;
+ bool is_amsdu;
+
+ WL_TRACE("wl%d: wlc_recv\n", wlc->pub->unit);
+
+ osh = wlc->osh;
+
+ /* frame starts with rxhdr */
+ rxh = (d11rxhdr_t *) (p->data);
+
+ /* strip off rxhdr */
+ skb_pull(p, wlc->hwrxoff);
+
+ /* fixup rx header endianness */
+ ltoh16_buf((void *)rxh, sizeof(d11rxhdr_t));
+
+ /* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU subframes */
+ if (rxh->RxStatus1 & RXS_PBPRES) {
+ if (p->len < 2) {
+ WLCNTINCR(wlc->pub->_cnt->rxrunt);
+ WL_ERROR("wl%d: wlc_recv: rcvd runt of len %d\n",
+ wlc->pub->unit, p->len);
+ goto toss;
+ }
+ skb_pull(p, 2);
+ }
+
+ h = (struct dot11_header *)(p->data + D11_PHY_HDR_LEN);
+ len = p->len;
+
+ if (rxh->RxStatus1 & RXS_FCSERR) {
+ if (wlc->pub->mac80211_state & MAC80211_PROMISC_BCNS) {
+ WL_ERROR("FCSERR while scanning******* - tossing\n");
+ goto toss;
+ } else {
+ WL_ERROR("RCSERR!!!\n");
+ goto toss;
+ }
+ }
+
+ /* check received pkt has at least frame control field */
+ if (len >= D11_PHY_HDR_LEN + sizeof(h->fc)) {
+ fc = ltoh16(h->fc);
+ } else {
+ WLCNTINCR(wlc->pub->_cnt->rxrunt);
+ goto toss;
+ }
+
+ is_amsdu = rxh->RxStatus2 & RXS_AMSDU_MASK;
+
+ /* explicitly test bad src address to avoid sending bad deauth */
+ if (!is_amsdu) {
+ /* CTS and ACK CTL frames are w/o a2 */
+ if (FC_TYPE(fc) == FC_TYPE_DATA || FC_TYPE(fc) == FC_TYPE_MNG) {
+ if ((is_zero_ether_addr(h->a2.octet) ||
+ is_multicast_ether_addr(h->a2.octet))) {
+ WL_ERROR("wl%d: %s: dropping a frame with invalid src mac address, a2: %pM\n",
+ wlc->pub->unit, __func__, &h->a2);
+ WLCNTINCR(wlc->pub->_cnt->rxbadsrcmac);
+ goto toss;
+ }
+ WLCNTINCR(wlc->pub->_cnt->rxfrag);
+ }
+ }
+
+ /* due to sheer numbers, toss out probe reqs for now */
+ if (FC_TYPE(fc) == FC_TYPE_MNG) {
+ if ((fc & FC_KIND_MASK) == FC_PROBE_REQ)
+ goto toss;
+ }
+
+ if (is_amsdu) {
+ WL_ERROR("%s: is_amsdu causing toss\n", __func__);
+ goto toss;
+ }
+
+ wlc_recvctl(wlc, osh, rxh, p);
+ return;
+
+ toss:
+ pkt_buf_free_skb(osh, p, false);
+}
+
+/* calculate frame duration for Mixed-mode L-SIG spoofing, return
+ * number of bytes goes in the length field
+ *
+ * Formula given by HT PHY Spec v 1.13
+ * len = 3(nsyms + nstream + 3) - 3
+ */
+u16 BCMFASTPATH
+wlc_calc_lsig_len(struct wlc_info *wlc, ratespec_t ratespec, uint mac_len)
+{
+ uint nsyms, len = 0, kNdps;
+
+ WL_TRACE("wl%d: wlc_calc_lsig_len: rate %d, len%d\n",
+ wlc->pub->unit, RSPEC2RATE(ratespec), mac_len);
+
+ if (IS_MCS(ratespec)) {
+ uint mcs = ratespec & RSPEC_RATE_MASK;
+ /* MCS_TXS(mcs) returns num tx streams - 1 */
+ int tot_streams = (MCS_TXS(mcs) + 1) + RSPEC_STC(ratespec);
+
+ ASSERT(WLC_PHY_11N_CAP(wlc->band));
+ /* the payload duration calculation matches that of regular ofdm */
+ /* 1000Ndbps = kbps * 4 */
+ kNdps =
+ MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
+ RSPEC_ISSGI(ratespec)) * 4;
+
+ if (RSPEC_STC(ratespec) == 0)
+ /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
+ nsyms =
+ CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+ APHY_TAIL_NBITS) * 1000, kNdps);
+ else
+ /* STBC needs to have even number of symbols */
+ nsyms =
+ 2 *
+ CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+ APHY_TAIL_NBITS) * 1000, 2 * kNdps);
+
+ nsyms += (tot_streams + 3); /* (+3) account for HT-SIG(2) and HT-STF(1) */
+ /* 3 bytes/symbol @ legacy 6Mbps rate */
+ len = (3 * nsyms) - 3; /* (-3) excluding service bits and tail bits */
+ }
+
+ return (u16) len;
+}
+
+/* calculate frame duration of a given rate and length, return time in usec unit */
+uint BCMFASTPATH
+wlc_calc_frame_time(struct wlc_info *wlc, ratespec_t ratespec, u8 preamble_type,
+ uint mac_len)
+{
+ uint nsyms, dur = 0, Ndps, kNdps;
+ uint rate = RSPEC2RATE(ratespec);
+
+ if (rate == 0) {
+ ASSERT(0);
+ WL_ERROR("wl%d: WAR: using rate of 1 mbps\n", wlc->pub->unit);
+ rate = WLC_RATE_1M;
+ }
+
+ WL_TRACE("wl%d: wlc_calc_frame_time: rspec 0x%x, preamble_type %d, len%d\n",
+ wlc->pub->unit, ratespec, preamble_type, mac_len);
+
+ if (IS_MCS(ratespec)) {
+ uint mcs = ratespec & RSPEC_RATE_MASK;
+ int tot_streams = MCS_TXS(mcs) + RSPEC_STC(ratespec);
+ ASSERT(WLC_PHY_11N_CAP(wlc->band));
+ ASSERT(WLC_IS_MIMO_PREAMBLE(preamble_type));
+
+ dur = PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
+ if (preamble_type == WLC_MM_PREAMBLE)
+ dur += PREN_MM_EXT;
+ /* 1000Ndbps = kbps * 4 */
+ kNdps =
+ MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
+ RSPEC_ISSGI(ratespec)) * 4;
+
+ if (RSPEC_STC(ratespec) == 0)
+ /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
+ nsyms =
+ CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+ APHY_TAIL_NBITS) * 1000, kNdps);
+ else
+ /* STBC needs to have even number of symbols */
+ nsyms =
+ 2 *
+ CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+ APHY_TAIL_NBITS) * 1000, 2 * kNdps);
+
+ dur += APHY_SYMBOL_TIME * nsyms;
+ if (BAND_2G(wlc->band->bandtype))
+ dur += DOT11_OFDM_SIGNAL_EXTENSION;
+ } else if (IS_OFDM(rate)) {
+ dur = APHY_PREAMBLE_TIME;
+ dur += APHY_SIGNAL_TIME;
+ /* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
+ Ndps = rate * 2;
+ /* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
+ nsyms =
+ CEIL((APHY_SERVICE_NBITS + 8 * mac_len + APHY_TAIL_NBITS),
+ Ndps);
+ dur += APHY_SYMBOL_TIME * nsyms;
+ if (BAND_2G(wlc->band->bandtype))
+ dur += DOT11_OFDM_SIGNAL_EXTENSION;
+ } else {
+ /* calc # bits * 2 so factor of 2 in rate (1/2 mbps) will divide out */
+ mac_len = mac_len * 8 * 2;
+ /* calc ceiling of bits/rate = microseconds of air time */
+ dur = (mac_len + rate - 1) / rate;
+ if (preamble_type & WLC_SHORT_PREAMBLE)
+ dur += BPHY_PLCP_SHORT_TIME;
+ else
+ dur += BPHY_PLCP_TIME;
+ }
+ return dur;
+}
+
+/* The opposite of wlc_calc_frame_time */
+static uint
+wlc_calc_frame_len(struct wlc_info *wlc, ratespec_t ratespec, u8 preamble_type,
+ uint dur)
+{
+ uint nsyms, mac_len, Ndps, kNdps;
+ uint rate = RSPEC2RATE(ratespec);
+
+ WL_TRACE("wl%d: wlc_calc_frame_len: rspec 0x%x, preamble_type %d, dur %d\n",
+ wlc->pub->unit, ratespec, preamble_type, dur);
+
+ if (IS_MCS(ratespec)) {
+ uint mcs = ratespec & RSPEC_RATE_MASK;
+ int tot_streams = MCS_TXS(mcs) + RSPEC_STC(ratespec);
+ ASSERT(WLC_PHY_11N_CAP(wlc->band));
+ dur -= PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
+ /* payload calculation matches that of regular ofdm */
+ if (BAND_2G(wlc->band->bandtype))
+ dur -= DOT11_OFDM_SIGNAL_EXTENSION;
+ /* kNdbps = kbps * 4 */
+ kNdps =
+ MCS_RATE(mcs, RSPEC_IS40MHZ(ratespec),
+ RSPEC_ISSGI(ratespec)) * 4;
+ nsyms = dur / APHY_SYMBOL_TIME;
+ mac_len =
+ ((nsyms * kNdps) -
+ ((APHY_SERVICE_NBITS + APHY_TAIL_NBITS) * 1000)) / 8000;
+ } else if (IS_OFDM(ratespec)) {
+ dur -= APHY_PREAMBLE_TIME;
+ dur -= APHY_SIGNAL_TIME;
+ /* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
+ Ndps = rate * 2;
+ nsyms = dur / APHY_SYMBOL_TIME;
+ mac_len =
+ ((nsyms * Ndps) -
+ (APHY_SERVICE_NBITS + APHY_TAIL_NBITS)) / 8;
+ } else {
+ if (preamble_type & WLC_SHORT_PREAMBLE)
+ dur -= BPHY_PLCP_SHORT_TIME;
+ else
+ dur -= BPHY_PLCP_TIME;
+ mac_len = dur * rate;
+ /* divide out factor of 2 in rate (1/2 mbps) */
+ mac_len = mac_len / 8 / 2;
+ }
+ return mac_len;
+}
+
+static uint
+wlc_calc_ba_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
+{
+ WL_TRACE("wl%d: wlc_calc_ba_time: rspec 0x%x, preamble_type %d\n",
+ wlc->pub->unit, rspec, preamble_type);
+ /* Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that is less than
+ * or equal to the rate of the immediately previous frame in the FES
+ */
+ rspec = WLC_BASIC_RATE(wlc, rspec);
+ ASSERT(VALID_RATE_DBG(wlc, rspec));
+
+ /* BA len == 32 == 16(ctl hdr) + 4(ba len) + 8(bitmap) + 4(fcs) */
+ return wlc_calc_frame_time(wlc, rspec, preamble_type,
+ (DOT11_BA_LEN + DOT11_BA_BITMAP_LEN +
+ DOT11_FCS_LEN));
+}
+
+static uint BCMFASTPATH
+wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
+{
+ uint dur = 0;
+
+ WL_TRACE("wl%d: wlc_calc_ack_time: rspec 0x%x, preamble_type %d\n",
+ wlc->pub->unit, rspec, preamble_type);
+ /* Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that is less than
+ * or equal to the rate of the immediately previous frame in the FES
+ */
+ rspec = WLC_BASIC_RATE(wlc, rspec);
+ ASSERT(VALID_RATE_DBG(wlc, rspec));
+
+ /* ACK frame len == 14 == 2(fc) + 2(dur) + 6(ra) + 4(fcs) */
+ dur =
+ wlc_calc_frame_time(wlc, rspec, preamble_type,
+ (DOT11_ACK_LEN + DOT11_FCS_LEN));
+ return dur;
+}
+
+static uint
+wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type)
+{
+ WL_TRACE("wl%d: wlc_calc_cts_time: ratespec 0x%x, preamble_type %d\n",
+ wlc->pub->unit, rspec, preamble_type);
+ return wlc_calc_ack_time(wlc, rspec, preamble_type);
+}
+
+/* derive wlc->band->basic_rate[] table from 'rateset' */
+void wlc_rate_lookup_init(struct wlc_info *wlc, wlc_rateset_t *rateset)
+{
+ u8 rate;
+ u8 mandatory;
+ u8 cck_basic = 0;
+ u8 ofdm_basic = 0;
+ u8 *br = wlc->band->basic_rate;
+ uint i;
+
+ /* incoming rates are in 500kbps units as in 802.11 Supported Rates */
+ memset(br, 0, WLC_MAXRATE + 1);
+
+ /* For each basic rate in the rates list, make an entry in the
+ * best basic lookup.
+ */
+ for (i = 0; i < rateset->count; i++) {
+ /* only make an entry for a basic rate */
+ if (!(rateset->rates[i] & WLC_RATE_FLAG))
+ continue;
+
+ /* mask off basic bit */
+ rate = (rateset->rates[i] & RATE_MASK);
+
+ if (rate > WLC_MAXRATE) {
+ WL_ERROR("wlc_rate_lookup_init: invalid rate 0x%X in rate set\n",
+ rateset->rates[i]);
+ continue;
+ }
+
+ br[rate] = rate;
+ }
+
+ /* The rate lookup table now has non-zero entries for each
+ * basic rate, equal to the basic rate: br[basicN] = basicN
+ *
+ * To look up the best basic rate corresponding to any
+ * particular rate, code can use the basic_rate table
+ * like this
+ *
+ * basic_rate = wlc->band->basic_rate[tx_rate]
+ *
+ * Make sure there is a best basic rate entry for
+ * every rate by walking up the table from low rates
+ * to high, filling in holes in the lookup table
+ */
+
+ for (i = 0; i < wlc->band->hw_rateset.count; i++) {
+ rate = wlc->band->hw_rateset.rates[i];
+ ASSERT(rate <= WLC_MAXRATE);
+
+ if (br[rate] != 0) {
+ /* This rate is a basic rate.
+ * Keep track of the best basic rate so far by
+ * modulation type.
+ */
+ if (IS_OFDM(rate))
+ ofdm_basic = rate;
+ else
+ cck_basic = rate;
+
+ continue;
+ }
+
+ /* This rate is not a basic rate so figure out the
+ * best basic rate less than this rate and fill in
+ * the hole in the table
+ */
+
+ br[rate] = IS_OFDM(rate) ? ofdm_basic : cck_basic;
+
+ if (br[rate] != 0)
+ continue;
+
+ if (IS_OFDM(rate)) {
+ /* In 11g and 11a, the OFDM mandatory rates are 6, 12, and 24 Mbps */
+ if (rate >= WLC_RATE_24M)
+ mandatory = WLC_RATE_24M;
+ else if (rate >= WLC_RATE_12M)
+ mandatory = WLC_RATE_12M;
+ else
+ mandatory = WLC_RATE_6M;
+ } else {
+ /* In 11b, all the CCK rates are mandatory 1 - 11 Mbps */
+ mandatory = rate;
+ }
+
+ br[rate] = mandatory;
+ }
+}
+
+static void wlc_write_rate_shm(struct wlc_info *wlc, u8 rate, u8 basic_rate)
+{
+ u8 phy_rate, index;
+ u8 basic_phy_rate, basic_index;
+ u16 dir_table, basic_table;
+ u16 basic_ptr;
+
+ /* Shared memory address for the table we are reading */
+ dir_table = IS_OFDM(basic_rate) ? M_RT_DIRMAP_A : M_RT_DIRMAP_B;
+
+ /* Shared memory address for the table we are writing */
+ basic_table = IS_OFDM(rate) ? M_RT_BBRSMAP_A : M_RT_BBRSMAP_B;
+
+ /*
+ * for a given rate, the LS-nibble of the PLCP SIGNAL field is
+ * the index into the rate table.
+ */
+ phy_rate = rate_info[rate] & RATE_MASK;
+ basic_phy_rate = rate_info[basic_rate] & RATE_MASK;
+ index = phy_rate & 0xf;
+ basic_index = basic_phy_rate & 0xf;
+
+ /* Find the SHM pointer to the ACK rate entry by looking in the
+ * Direct-map Table
+ */
+ basic_ptr = wlc_read_shm(wlc, (dir_table + basic_index * 2));
+
+ /* Update the SHM BSS-basic-rate-set mapping table with the pointer
+ * to the correct basic rate for the given incoming rate
+ */
+ wlc_write_shm(wlc, (basic_table + index * 2), basic_ptr);
+}
+
+static const wlc_rateset_t *wlc_rateset_get_hwrs(struct wlc_info *wlc)
+{
+ const wlc_rateset_t *rs_dflt;
+
+ if (WLC_PHY_11N_CAP(wlc->band)) {
+ if (BAND_5G(wlc->band->bandtype))
+ rs_dflt = &ofdm_mimo_rates;
+ else
+ rs_dflt = &cck_ofdm_mimo_rates;
+ } else if (wlc->band->gmode)
+ rs_dflt = &cck_ofdm_rates;
+ else
+ rs_dflt = &cck_rates;
+
+ return rs_dflt;
+}
+
+void wlc_set_ratetable(struct wlc_info *wlc)
+{
+ const wlc_rateset_t *rs_dflt;
+ wlc_rateset_t rs;
+ u8 rate, basic_rate;
+ uint i;
+
+ rs_dflt = wlc_rateset_get_hwrs(wlc);
+ ASSERT(rs_dflt != NULL);
+
+ wlc_rateset_copy(rs_dflt, &rs);
+ wlc_rateset_mcs_upd(&rs, wlc->stf->txstreams);
+
+ /* walk the phy rate table and update SHM basic rate lookup table */
+ for (i = 0; i < rs.count; i++) {
+ rate = rs.rates[i] & RATE_MASK;
+
+ /* for a given rate WLC_BASIC_RATE returns the rate at
+ * which a response ACK/CTS should be sent.
+ */
+ basic_rate = WLC_BASIC_RATE(wlc, rate);
+ if (basic_rate == 0) {
+ /* This should only happen if we are using a
+ * restricted rateset.
+ */
+ basic_rate = rs.rates[0] & RATE_MASK;
+ }
+
+ wlc_write_rate_shm(wlc, rate, basic_rate);
+ }
+}
+
+/*
+ * Return true if the specified rate is supported by the specified band.
+ * WLC_BAND_AUTO indicates the current band.
+ */
+bool wlc_valid_rate(struct wlc_info *wlc, ratespec_t rspec, int band,
+ bool verbose)
+{
+ wlc_rateset_t *hw_rateset;
+ uint i;
+
+ if ((band == WLC_BAND_AUTO) || (band == wlc->band->bandtype)) {
+ hw_rateset = &wlc->band->hw_rateset;
+ } else if (NBANDS(wlc) > 1) {
+ hw_rateset = &wlc->bandstate[OTHERBANDUNIT(wlc)]->hw_rateset;
+ } else {
+ /* other band specified and we are a single band device */
+ return false;
+ }
+
+ /* check if this is a mimo rate */
+ if (IS_MCS(rspec)) {
+ if (!VALID_MCS((rspec & RSPEC_RATE_MASK)))
+ goto error;
+
+ return isset(hw_rateset->mcs, (rspec & RSPEC_RATE_MASK));
+ }
+
+ for (i = 0; i < hw_rateset->count; i++)
+ if (hw_rateset->rates[i] == RSPEC2RATE(rspec))
+ return true;
+ error:
+ if (verbose) {
+ WL_ERROR("wl%d: wlc_valid_rate: rate spec 0x%x not in hw_rateset\n",
+ wlc->pub->unit, rspec);
+ }
+
+ return false;
+}
+
+static void wlc_update_mimo_band_bwcap(struct wlc_info *wlc, u8 bwcap)
+{
+ uint i;
+ struct wlcband *band;
+
+ for (i = 0; i < NBANDS(wlc); i++) {
+ if (IS_SINGLEBAND_5G(wlc->deviceid))
+ i = BAND_5G_INDEX;
+ band = wlc->bandstate[i];
+ if (band->bandtype == WLC_BAND_5G) {
+ if ((bwcap == WLC_N_BW_40ALL)
+ || (bwcap == WLC_N_BW_20IN2G_40IN5G))
+ band->mimo_cap_40 = true;
+ else
+ band->mimo_cap_40 = false;
+ } else {
+ ASSERT(band->bandtype == WLC_BAND_2G);
+ if (bwcap == WLC_N_BW_40ALL)
+ band->mimo_cap_40 = true;
+ else
+ band->mimo_cap_40 = false;
+ }
+ }
+
+ wlc->mimo_band_bwcap = bwcap;
+}
+
+void wlc_mod_prb_rsp_rate_table(struct wlc_info *wlc, uint frame_len)
+{
+ const wlc_rateset_t *rs_dflt;
+ wlc_rateset_t rs;
+ u8 rate;
+ u16 entry_ptr;
+ u8 plcp[D11_PHY_HDR_LEN];
+ u16 dur, sifs;
+ uint i;
+
+ sifs = SIFS(wlc->band);
+
+ rs_dflt = wlc_rateset_get_hwrs(wlc);
+ ASSERT(rs_dflt != NULL);
+
+ wlc_rateset_copy(rs_dflt, &rs);
+ wlc_rateset_mcs_upd(&rs, wlc->stf->txstreams);
+
+ /* walk the phy rate table and update MAC core SHM basic rate table entries */
+ for (i = 0; i < rs.count; i++) {
+ rate = rs.rates[i] & RATE_MASK;
+
+ entry_ptr = wlc_rate_shm_offset(wlc, rate);
+
+ /* Calculate the Probe Response PLCP for the given rate */
+ wlc_compute_plcp(wlc, rate, frame_len, plcp);
+
+ /* Calculate the duration of the Probe Response frame plus SIFS for the MAC */
+ dur =
+ (u16) wlc_calc_frame_time(wlc, rate, WLC_LONG_PREAMBLE,
+ frame_len);
+ dur += sifs;
+
+ /* Update the SHM Rate Table entry Probe Response values */
+ wlc_write_shm(wlc, entry_ptr + M_RT_PRS_PLCP_POS,
+ (u16) (plcp[0] + (plcp[1] << 8)));
+ wlc_write_shm(wlc, entry_ptr + M_RT_PRS_PLCP_POS + 2,
+ (u16) (plcp[2] + (plcp[3] << 8)));
+ wlc_write_shm(wlc, entry_ptr + M_RT_PRS_DUR_POS, dur);
+ }
+}
+
+u16
+wlc_compute_bcntsfoff(struct wlc_info *wlc, ratespec_t rspec,
+ bool short_preamble, bool phydelay)
+{
+ uint bcntsfoff = 0;
+
+ if (IS_MCS(rspec)) {
+ WL_ERROR("wl%d: recd beacon with mcs rate; rspec 0x%x\n",
+ wlc->pub->unit, rspec);
+ } else if (IS_OFDM(rspec)) {
+ /* tx delay from MAC through phy to air (2.1 usec) +
+ * phy header time (preamble + PLCP SIGNAL == 20 usec) +
+ * PLCP SERVICE + MAC header time (SERVICE + FC + DUR + A1 + A2 + A3 + SEQ == 26
+ * bytes at beacon rate)
+ */
+ bcntsfoff += phydelay ? D11A_PHY_TX_DELAY : 0;
+ bcntsfoff += APHY_PREAMBLE_TIME + APHY_SIGNAL_TIME;
+ bcntsfoff +=
+ wlc_compute_airtime(wlc, rspec,
+ APHY_SERVICE_NBITS / 8 +
+ DOT11_MAC_HDR_LEN);
+ } else {
+ /* tx delay from MAC through phy to air (3.4 usec) +
+ * phy header time (long preamble + PLCP == 192 usec) +
+ * MAC header time (FC + DUR + A1 + A2 + A3 + SEQ == 24 bytes at beacon rate)
+ */
+ bcntsfoff += phydelay ? D11B_PHY_TX_DELAY : 0;
+ bcntsfoff +=
+ short_preamble ? D11B_PHY_SPREHDR_TIME :
+ D11B_PHY_LPREHDR_TIME;
+ bcntsfoff += wlc_compute_airtime(wlc, rspec, DOT11_MAC_HDR_LEN);
+ }
+ return (u16) (bcntsfoff);
+}
+
+/* Max buffering needed for beacon template/prb resp template is 142 bytes.
+ *
+ * PLCP header is 6 bytes.
+ * 802.11 A3 header is 24 bytes.
+ * Max beacon frame body template length is 112 bytes.
+ * Max probe resp frame body template length is 110 bytes.
+ *
+ * *len on input contains the max length of the packet available.
+ *
+ * The *len value is set to the number of bytes in buf used, and starts with the PLCP
+ * and included up to, but not including, the 4 byte FCS.
+ */
+static void
+wlc_bcn_prb_template(struct wlc_info *wlc, uint type, ratespec_t bcn_rspec,
+ wlc_bsscfg_t *cfg, u16 *buf, int *len)
+{
+ cck_phy_hdr_t *plcp;
+ struct dot11_management_header *h;
+ int hdr_len, body_len;
+
+ ASSERT(*len >= 142);
+ ASSERT(type == FC_BEACON || type == FC_PROBE_RESP);
+
+ if (MBSS_BCN_ENAB(cfg) && type == FC_BEACON)
+ hdr_len = DOT11_MAC_HDR_LEN;
+ else
+ hdr_len = D11_PHY_HDR_LEN + DOT11_MAC_HDR_LEN;
+ body_len = *len - hdr_len; /* calc buffer size provided for frame body */
+
+ *len = hdr_len + body_len; /* return actual size */
+
+ /* format PHY and MAC headers */
+ memset((char *)buf, 0, hdr_len);
+
+ plcp = (cck_phy_hdr_t *) buf;
+
+ /* PLCP for Probe Response frames are filled in from core's rate table */
+ if (type == FC_BEACON && !MBSS_BCN_ENAB(cfg)) {
+ /* fill in PLCP */
+ wlc_compute_plcp(wlc, bcn_rspec,
+ (DOT11_MAC_HDR_LEN + body_len + DOT11_FCS_LEN),
+ (u8 *) plcp);
+
+ }
+ /* "Regular" and 16 MBSS but not for 4 MBSS */
+ /* Update the phytxctl for the beacon based on the rspec */
+ if (!SOFTBCN_ENAB(cfg))
+ wlc_beacon_phytxctl_txant_upd(wlc, bcn_rspec);
+
+ if (MBSS_BCN_ENAB(cfg) && type == FC_BEACON)
+ h = (struct dot11_management_header *)&plcp[0];
+ else
+ h = (struct dot11_management_header *)&plcp[1];
+
+ /* fill in 802.11 header */
+ h->fc = htol16((u16) type);
+
+ /* DUR is 0 for multicast bcn, or filled in by MAC for prb resp */
+ /* A1 filled in by MAC for prb resp, broadcast for bcn */
+ if (type == FC_BEACON)
+ bcopy((const char *)ðer_bcast, (char *)&h->da,
+ ETH_ALEN);
+ bcopy((char *)&cfg->cur_etheraddr, (char *)&h->sa, ETH_ALEN);
+ bcopy((char *)&cfg->BSSID, (char *)&h->bssid, ETH_ALEN);
+
+ /* SEQ filled in by MAC */
+
+ return;
+}
+
+int wlc_get_header_len()
+{
+ return TXOFF;
+}
+
+/* Update a beacon for a particular BSS
+ * For MBSS, this updates the software template and sets "latest" to the index of the
+ * template updated.
+ * Otherwise, it updates the hardware template.
+ */
+void wlc_bss_update_beacon(struct wlc_info *wlc, wlc_bsscfg_t *cfg)
+{
+ int len = BCN_TMPL_LEN;
+
+ /* Clear the soft intmask */
+ wlc->defmacintmask &= ~MI_BCNTPL;
+
+ if (!cfg->up) { /* Only allow updates on an UP bss */
+ return;
+ }
+
+ if (MBSS_BCN_ENAB(cfg)) { /* Optimize: Some of if/else could be combined */
+ } else if (HWBCN_ENAB(cfg)) { /* Hardware beaconing for this config */
+ u16 bcn[BCN_TMPL_LEN / 2];
+ u32 both_valid = MCMD_BCN0VLD | MCMD_BCN1VLD;
+ d11regs_t *regs = wlc->regs;
+ struct osl_info *osh = NULL;
+
+ osh = wlc->osh;
+
+ /* Check if both templates are in use, if so sched. an interrupt
+ * that will call back into this routine
+ */
+ if ((R_REG(osh, ®s->maccommand) & both_valid) == both_valid) {
+ /* clear any previous status */
+ W_REG(osh, ®s->macintstatus, MI_BCNTPL);
+ }
+ /* Check that after scheduling the interrupt both of the
+ * templates are still busy. if not clear the int. & remask
+ */
+ if ((R_REG(osh, ®s->maccommand) & both_valid) == both_valid) {
+ wlc->defmacintmask |= MI_BCNTPL;
+ return;
+ }
+
+ wlc->bcn_rspec =
+ wlc_lowest_basic_rspec(wlc, &cfg->current_bss->rateset);
+ ASSERT(wlc_valid_rate
+ (wlc, wlc->bcn_rspec,
+ CHSPEC_IS2G(cfg->current_bss->
+ chanspec) ? WLC_BAND_2G : WLC_BAND_5G,
+ true));
+
+ /* update the template and ucode shm */
+ wlc_bcn_prb_template(wlc, FC_BEACON, wlc->bcn_rspec, cfg, bcn,
+ &len);
+ wlc_write_hw_bcntemplates(wlc, bcn, len, false);
+ }
+}
+
+/*
+ * Update all beacons for the system.
+ */
+void wlc_update_beacon(struct wlc_info *wlc)
+{
+ int idx;
+ wlc_bsscfg_t *bsscfg;
+
+ /* update AP or IBSS beacons */
+ FOREACH_BSS(wlc, idx, bsscfg) {
+ if (bsscfg->up && (BSSCFG_AP(bsscfg) || !bsscfg->BSS))
+ wlc_bss_update_beacon(wlc, bsscfg);
+ }
+}
+
+/* Write ssid into shared memory */
+void wlc_shm_ssid_upd(struct wlc_info *wlc, wlc_bsscfg_t *cfg)
+{
+ u8 *ssidptr = cfg->SSID;
+ u16 base = M_SSID;
+ u8 ssidbuf[DOT11_MAX_SSID_LEN];
+
+ /* padding the ssid with zero and copy it into shm */
+ memset(ssidbuf, 0, DOT11_MAX_SSID_LEN);
+ bcopy(ssidptr, ssidbuf, cfg->SSID_len);
+
+ wlc_copyto_shm(wlc, base, ssidbuf, DOT11_MAX_SSID_LEN);
+
+ if (!MBSS_BCN_ENAB(cfg))
+ wlc_write_shm(wlc, M_SSIDLEN, (u16) cfg->SSID_len);
+}
+
+void wlc_update_probe_resp(struct wlc_info *wlc, bool suspend)
+{
+ int idx;
+ wlc_bsscfg_t *bsscfg;
+
+ /* update AP or IBSS probe responses */
+ FOREACH_BSS(wlc, idx, bsscfg) {
+ if (bsscfg->up && (BSSCFG_AP(bsscfg) || !bsscfg->BSS))
+ wlc_bss_update_probe_resp(wlc, bsscfg, suspend);
+ }
+}
+
+void
+wlc_bss_update_probe_resp(struct wlc_info *wlc, wlc_bsscfg_t *cfg, bool suspend)
+{
+ u16 prb_resp[BCN_TMPL_LEN / 2];
+ int len = BCN_TMPL_LEN;
+
+ /* write the probe response to hardware, or save in the config structure */
+ if (!MBSS_PRB_ENAB(cfg)) {
+
+ /* create the probe response template */
+ wlc_bcn_prb_template(wlc, FC_PROBE_RESP, 0, cfg, prb_resp,
+ &len);
+
+ if (suspend)
+ wlc_suspend_mac_and_wait(wlc);
+
+ /* write the probe response into the template region */
+ wlc_bmac_write_template_ram(wlc->hw, T_PRS_TPL_BASE,
+ (len + 3) & ~3, prb_resp);
+
+ /* write the length of the probe response frame (+PLCP/-FCS) */
+ wlc_write_shm(wlc, M_PRB_RESP_FRM_LEN, (u16) len);
+
+ /* write the SSID and SSID length */
+ wlc_shm_ssid_upd(wlc, cfg);
+
+ /*
+ * Write PLCP headers and durations for probe response frames at all rates.
+ * Use the actual frame length covered by the PLCP header for the call to
+ * wlc_mod_prb_rsp_rate_table() by subtracting the PLCP len and adding the FCS.
+ */
+ len += (-D11_PHY_HDR_LEN + DOT11_FCS_LEN);
+ wlc_mod_prb_rsp_rate_table(wlc, (u16) len);
+
+ if (suspend)
+ wlc_enable_mac(wlc);
+ } else { /* Generating probe resp in sw; update local template */
+ ASSERT(0 && "No software probe response support without MBSS");
+ }
+}
+
+/* prepares pdu for transmission. returns BCM error codes */
+int wlc_prep_pdu(struct wlc_info *wlc, struct sk_buff *pdu, uint *fifop)
+{
+ struct osl_info *osh;
+ uint fifo;
+ d11txh_t *txh;
+ struct dot11_header *h;
+ struct scb *scb;
+ u16 fc;
+
+ osh = wlc->osh;
+
+ ASSERT(pdu);
+ txh = (d11txh_t *) (pdu->data);
+ ASSERT(txh);
+ h = (struct dot11_header *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
+ ASSERT(h);
+ fc = ltoh16(h->fc);
+
+ /* get the pkt queue info. This was put at wlc_sendctl or wlc_send for PDU */
+ fifo = ltoh16(txh->TxFrameID) & TXFID_QUEUE_MASK;
+
+ scb = NULL;
+
+ *fifop = fifo;
+
+ /* return if insufficient dma resources */
+ if (TXAVAIL(wlc, fifo) < MAX_DMA_SEGS) {
+ /* Mark precedences related to this FIFO, unsendable */
+ WLC_TX_FIFO_CLEAR(wlc, fifo);
+ return BCME_BUSY;
+ }
+
+ if (FC_TYPE(ltoh16(txh->MacFrameControl)) != FC_TYPE_DATA)
+ WLCNTINCR(wlc->pub->_cnt->txctl);
+
+ return 0;
+}
+
+/* init tx reported rate mechanism */
+void wlc_reprate_init(struct wlc_info *wlc)
+{
+ int i;
+ wlc_bsscfg_t *bsscfg;
+
+ FOREACH_BSS(wlc, i, bsscfg) {
+ wlc_bsscfg_reprate_init(bsscfg);
+ }
+}
+
+/* per bsscfg init tx reported rate mechanism */
+void wlc_bsscfg_reprate_init(wlc_bsscfg_t *bsscfg)
+{
+ bsscfg->txrspecidx = 0;
+ memset((char *)bsscfg->txrspec, 0, sizeof(bsscfg->txrspec));
+}
+
+/* Retrieve a consolidated set of revision information,
+ * typically for the WLC_GET_REVINFO ioctl
+ */
+int wlc_get_revision_info(struct wlc_info *wlc, void *buf, uint len)
+{
+ wlc_rev_info_t *rinfo = (wlc_rev_info_t *) buf;
+
+ if (len < WL_REV_INFO_LEGACY_LENGTH)
+ return BCME_BUFTOOSHORT;
+
+ rinfo->vendorid = wlc->vendorid;
+ rinfo->deviceid = wlc->deviceid;
+ rinfo->radiorev = (wlc->band->radiorev << IDCODE_REV_SHIFT) |
+ (wlc->band->radioid << IDCODE_ID_SHIFT);
+ rinfo->chiprev = wlc->pub->sih->chiprev;
+ rinfo->corerev = wlc->pub->corerev;
+ rinfo->boardid = wlc->pub->sih->boardtype;
+ rinfo->boardvendor = wlc->pub->sih->boardvendor;
+ rinfo->boardrev = wlc->pub->boardrev;
+ rinfo->ucoderev = wlc->ucode_rev;
+ rinfo->driverrev = EPI_VERSION_NUM;
+ rinfo->bus = wlc->pub->sih->bustype;
+ rinfo->chipnum = wlc->pub->sih->chip;
+
+ if (len >= (offsetof(wlc_rev_info_t, chippkg))) {
+ rinfo->phytype = wlc->band->phytype;
+ rinfo->phyrev = wlc->band->phyrev;
+ rinfo->anarev = 0; /* obsolete stuff, suppress */
+ }
+
+ if (len >= sizeof(*rinfo)) {
+ rinfo->chippkg = wlc->pub->sih->chippkg;
+ }
+
+ return BCME_OK;
+}
+
+void wlc_default_rateset(struct wlc_info *wlc, wlc_rateset_t *rs)
+{
+ wlc_rateset_default(rs, NULL, wlc->band->phytype, wlc->band->bandtype,
+ false, RATE_MASK_FULL, (bool) N_ENAB(wlc->pub),
+ CHSPEC_WLC_BW(wlc->default_bss->chanspec),
+ wlc->stf->txstreams);
+}
+
+static void wlc_bss_default_init(struct wlc_info *wlc)
+{
+ chanspec_t chanspec;
+ struct wlcband *band;
+ wlc_bss_info_t *bi = wlc->default_bss;
+
+ /* init default and target BSS with some sane initial values */
+ memset((char *)(bi), 0, sizeof(wlc_bss_info_t));
+ bi->beacon_period = ISSIM_ENAB(wlc->pub->sih) ? BEACON_INTERVAL_DEF_QT :
+ BEACON_INTERVAL_DEFAULT;
+ bi->dtim_period = ISSIM_ENAB(wlc->pub->sih) ? DTIM_INTERVAL_DEF_QT :
+ DTIM_INTERVAL_DEFAULT;
+
+ /* fill the default channel as the first valid channel
+ * starting from the 2G channels
+ */
+ chanspec = CH20MHZ_CHSPEC(1);
+ ASSERT(chanspec != INVCHANSPEC);
+
+ wlc->home_chanspec = bi->chanspec = chanspec;
+
+ /* find the band of our default channel */
+ band = wlc->band;
+ if (NBANDS(wlc) > 1 && band->bandunit != CHSPEC_WLCBANDUNIT(chanspec))
+ band = wlc->bandstate[OTHERBANDUNIT(wlc)];
+
+ /* init bss rates to the band specific default rate set */
+ wlc_rateset_default(&bi->rateset, NULL, band->phytype, band->bandtype,
+ false, RATE_MASK_FULL, (bool) N_ENAB(wlc->pub),
+ CHSPEC_WLC_BW(chanspec), wlc->stf->txstreams);
+
+ if (N_ENAB(wlc->pub))
+ bi->flags |= WLC_BSS_HT;
+}
+
+/* Deferred event processing */
+static void wlc_process_eventq(void *arg)
+{
+ struct wlc_info *wlc = (struct wlc_info *) arg;
+ wlc_event_t *etmp;
+
+ while ((etmp = wlc_eventq_deq(wlc->eventq))) {
+ /* Perform OS specific event processing */
+ wl_event(wlc->wl, etmp->event.ifname, etmp);
+ if (etmp->data) {
+ kfree(etmp->data);
+ etmp->data = NULL;
+ }
+ wlc_event_free(wlc->eventq, etmp);
+ }
+}
+
+void
+wlc_uint64_sub(u32 *a_high, u32 *a_low, u32 b_high, u32 b_low)
+{
+ if (b_low > *a_low) {
+ /* low half needs a carry */
+ b_high += 1;
+ }
+ *a_low -= b_low;
+ *a_high -= b_high;
+}
+
+static ratespec_t
+mac80211_wlc_set_nrate(struct wlc_info *wlc, struct wlcband *cur_band,
+ u32 int_val)
+{
+ u8 stf = (int_val & NRATE_STF_MASK) >> NRATE_STF_SHIFT;
+ u8 rate = int_val & NRATE_RATE_MASK;
+ ratespec_t rspec;
+ bool ismcs = ((int_val & NRATE_MCS_INUSE) == NRATE_MCS_INUSE);
+ bool issgi = ((int_val & NRATE_SGI_MASK) >> NRATE_SGI_SHIFT);
+ bool override_mcs_only = ((int_val & NRATE_OVERRIDE_MCS_ONLY)
+ == NRATE_OVERRIDE_MCS_ONLY);
+ int bcmerror = 0;
+
+ if (!ismcs) {
+ return (ratespec_t) rate;
+ }
+
+ /* validate the combination of rate/mcs/stf is allowed */
+ if (N_ENAB(wlc->pub) && ismcs) {
+ /* mcs only allowed when nmode */
+ if (stf > PHY_TXC1_MODE_SDM) {
+ WL_ERROR("wl%d: %s: Invalid stf\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+
+ /* mcs 32 is a special case, DUP mode 40 only */
+ if (rate == 32) {
+ if (!CHSPEC_IS40(wlc->home_chanspec) ||
+ ((stf != PHY_TXC1_MODE_SISO)
+ && (stf != PHY_TXC1_MODE_CDD))) {
+ WL_ERROR("wl%d: %s: Invalid mcs 32\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+ /* mcs > 7 must use stf SDM */
+ } else if (rate > HIGHEST_SINGLE_STREAM_MCS) {
+ /* mcs > 7 must use stf SDM */
+ if (stf != PHY_TXC1_MODE_SDM) {
+ WL_TRACE("wl%d: %s: enabling SDM mode for mcs %d\n",
+ WLCWLUNIT(wlc), __func__, rate);
+ stf = PHY_TXC1_MODE_SDM;
+ }
+ } else {
+ /* MCS 0-7 may use SISO, CDD, and for phy_rev >= 3 STBC */
+ if ((stf > PHY_TXC1_MODE_STBC) ||
+ (!WLC_STBC_CAP_PHY(wlc)
+ && (stf == PHY_TXC1_MODE_STBC))) {
+ WL_ERROR("wl%d: %s: Invalid STBC\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+ }
+ } else if (IS_OFDM(rate)) {
+ if ((stf != PHY_TXC1_MODE_CDD) && (stf != PHY_TXC1_MODE_SISO)) {
+ WL_ERROR("wl%d: %s: Invalid OFDM\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+ } else if (IS_CCK(rate)) {
+ if ((cur_band->bandtype != WLC_BAND_2G)
+ || (stf != PHY_TXC1_MODE_SISO)) {
+ WL_ERROR("wl%d: %s: Invalid CCK\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+ } else {
+ WL_ERROR("wl%d: %s: Unknown rate type\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+ /* make sure multiple antennae are available for non-siso rates */
+ if ((stf != PHY_TXC1_MODE_SISO) && (wlc->stf->txstreams == 1)) {
+ WL_ERROR("wl%d: %s: SISO antenna but !SISO request\n",
+ WLCWLUNIT(wlc), __func__);
+ bcmerror = BCME_RANGE;
+ goto done;
+ }
+
+ rspec = rate;
+ if (ismcs) {
+ rspec |= RSPEC_MIMORATE;
+ /* For STBC populate the STC field of the ratespec */
+ if (stf == PHY_TXC1_MODE_STBC) {
+ u8 stc;
+ stc = 1; /* Nss for single stream is always 1 */
+ rspec |= (stc << RSPEC_STC_SHIFT);
+ }
+ }
+
+ rspec |= (stf << RSPEC_STF_SHIFT);
+
+ if (override_mcs_only)
+ rspec |= RSPEC_OVERRIDE_MCS_ONLY;
+
+ if (issgi)
+ rspec |= RSPEC_SHORT_GI;
+
+ if ((rate != 0)
+ && !wlc_valid_rate(wlc, rspec, cur_band->bandtype, true)) {
+ return rate;
+ }
+
+ return rspec;
+ done:
+ WL_ERROR("Hoark\n");
+ return rate;
+}
+
+/* formula: IDLE_BUSY_RATIO_X_16 = (100-duty_cycle)/duty_cycle*16 */
+static int
+wlc_duty_cycle_set(struct wlc_info *wlc, int duty_cycle, bool isOFDM,
+ bool writeToShm)
+{
+ int idle_busy_ratio_x_16 = 0;
+ uint offset =
+ isOFDM ? M_TX_IDLE_BUSY_RATIO_X_16_OFDM :
+ M_TX_IDLE_BUSY_RATIO_X_16_CCK;
+ if (duty_cycle > 100 || duty_cycle < 0) {
+ WL_ERROR("wl%d: duty cycle value off limit\n", wlc->pub->unit);
+ return BCME_RANGE;
+ }
+ if (duty_cycle)
+ idle_busy_ratio_x_16 = (100 - duty_cycle) * 16 / duty_cycle;
+ /* Only write to shared memory when wl is up */
+ if (writeToShm)
+ wlc_write_shm(wlc, offset, (u16) idle_busy_ratio_x_16);
+
+ if (isOFDM)
+ wlc->tx_duty_cycle_ofdm = (u16) duty_cycle;
+ else
+ wlc->tx_duty_cycle_cck = (u16) duty_cycle;
+
+ return BCME_OK;
+}
+
+/* Read a single u16 from shared memory.
+ * SHM 'offset' needs to be an even address
+ */
+u16 wlc_read_shm(struct wlc_info *wlc, uint offset)
+{
+ return wlc_bmac_read_shm(wlc->hw, offset);
+}
+
+/* Write a single u16 to shared memory.
+ * SHM 'offset' needs to be an even address
+ */
+void wlc_write_shm(struct wlc_info *wlc, uint offset, u16 v)
+{
+ wlc_bmac_write_shm(wlc->hw, offset, v);
+}
+
+/* Set a range of shared memory to a value.
+ * SHM 'offset' needs to be an even address and
+ * Range length 'len' must be an even number of bytes
+ */
+void wlc_set_shm(struct wlc_info *wlc, uint offset, u16 v, int len)
+{
+ /* offset and len need to be even */
+ ASSERT((offset & 1) == 0);
+ ASSERT((len & 1) == 0);
+
+ if (len <= 0)
+ return;
+
+ wlc_bmac_set_shm(wlc->hw, offset, v, len);
+}
+
+/* Copy a buffer to shared memory.
+ * SHM 'offset' needs to be an even address and
+ * Buffer length 'len' must be an even number of bytes
+ */
+void wlc_copyto_shm(struct wlc_info *wlc, uint offset, const void *buf, int len)
+{
+ /* offset and len need to be even */
+ ASSERT((offset & 1) == 0);
+ ASSERT((len & 1) == 0);
+
+ if (len <= 0)
+ return;
+ wlc_bmac_copyto_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
+
+}
+
+/* Copy from shared memory to a buffer.
+ * SHM 'offset' needs to be an even address and
+ * Buffer length 'len' must be an even number of bytes
+ */
+void wlc_copyfrom_shm(struct wlc_info *wlc, uint offset, void *buf, int len)
+{
+ /* offset and len need to be even */
+ ASSERT((offset & 1) == 0);
+ ASSERT((len & 1) == 0);
+
+ if (len <= 0)
+ return;
+
+ wlc_bmac_copyfrom_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
+}
+
+/* wrapper BMAC functions to for HIGH driver access */
+void wlc_mctrl(struct wlc_info *wlc, u32 mask, u32 val)
+{
+ wlc_bmac_mctrl(wlc->hw, mask, val);
+}
+
+void wlc_corereset(struct wlc_info *wlc, u32 flags)
+{
+ wlc_bmac_corereset(wlc->hw, flags);
+}
+
+void wlc_mhf(struct wlc_info *wlc, u8 idx, u16 mask, u16 val, int bands)
+{
+ wlc_bmac_mhf(wlc->hw, idx, mask, val, bands);
+}
+
+u16 wlc_mhf_get(struct wlc_info *wlc, u8 idx, int bands)
+{
+ return wlc_bmac_mhf_get(wlc->hw, idx, bands);
+}
+
+int wlc_xmtfifo_sz_get(struct wlc_info *wlc, uint fifo, uint *blocks)
+{
+ return wlc_bmac_xmtfifo_sz_get(wlc->hw, fifo, blocks);
+}
+
+void wlc_write_template_ram(struct wlc_info *wlc, int offset, int len,
+ void *buf)
+{
+ wlc_bmac_write_template_ram(wlc->hw, offset, len, buf);
+}
+
+void wlc_write_hw_bcntemplates(struct wlc_info *wlc, void *bcn, int len,
+ bool both)
+{
+ wlc_bmac_write_hw_bcntemplates(wlc->hw, bcn, len, both);
+}
+
+void
+wlc_set_addrmatch(struct wlc_info *wlc, int match_reg_offset,
+ const struct ether_addr *addr)
+{
+ wlc_bmac_set_addrmatch(wlc->hw, match_reg_offset, addr);
+}
+
+void wlc_set_rcmta(struct wlc_info *wlc, int idx, const struct ether_addr *addr)
+{
+ wlc_bmac_set_rcmta(wlc->hw, idx, addr);
+}
+
+void wlc_read_tsf(struct wlc_info *wlc, u32 *tsf_l_ptr, u32 *tsf_h_ptr)
+{
+ wlc_bmac_read_tsf(wlc->hw, tsf_l_ptr, tsf_h_ptr);
+}
+
+void wlc_set_cwmin(struct wlc_info *wlc, u16 newmin)
+{
+ wlc->band->CWmin = newmin;
+ wlc_bmac_set_cwmin(wlc->hw, newmin);
+}
+
+void wlc_set_cwmax(struct wlc_info *wlc, u16 newmax)
+{
+ wlc->band->CWmax = newmax;
+ wlc_bmac_set_cwmax(wlc->hw, newmax);
+}
+
+void wlc_fifoerrors(struct wlc_info *wlc)
+{
+
+ wlc_bmac_fifoerrors(wlc->hw);
+}
+
+/* Search mem rw utilities */
+
+void wlc_pllreq(struct wlc_info *wlc, bool set, mbool req_bit)
+{
+ wlc_bmac_pllreq(wlc->hw, set, req_bit);
+}
+
+void wlc_reset_bmac_done(struct wlc_info *wlc)
+{
+}
+
+void wlc_ht_mimops_cap_update(struct wlc_info *wlc, u8 mimops_mode)
+{
+ wlc->ht_cap.cap &= ~HT_CAP_MIMO_PS_MASK;
+ wlc->ht_cap.cap |= (mimops_mode << HT_CAP_MIMO_PS_SHIFT);
+
+ if (AP_ENAB(wlc->pub) && wlc->clk) {
+ wlc_update_beacon(wlc);
+ wlc_update_probe_resp(wlc, true);
+ }
+}
+
+/* check for the particular priority flow control bit being set */
+bool
+wlc_txflowcontrol_prio_isset(struct wlc_info *wlc, wlc_txq_info_t *q, int prio)
+{
+ uint prio_mask;
+
+ if (prio == ALLPRIO) {
+ prio_mask = TXQ_STOP_FOR_PRIOFC_MASK;
+ } else {
+ ASSERT(prio >= 0 && prio <= MAXPRIO);
+ prio_mask = NBITVAL(prio);
+ }
+
+ return (q->stopped & prio_mask) == prio_mask;
+}
+
+/* propogate the flow control to all interfaces using the given tx queue */
+void wlc_txflowcontrol(struct wlc_info *wlc, wlc_txq_info_t *qi,
+ bool on, int prio)
+{
+ uint prio_bits;
+ uint cur_bits;
+
+ WL_ERROR("%s: flow control kicks in\n", __func__);
+
+ if (prio == ALLPRIO) {
+ prio_bits = TXQ_STOP_FOR_PRIOFC_MASK;
+ } else {
+ ASSERT(prio >= 0 && prio <= MAXPRIO);
+ prio_bits = NBITVAL(prio);
+ }
+
+ cur_bits = qi->stopped & prio_bits;
+
+ /* Check for the case of no change and return early
+ * Otherwise update the bit and continue
+ */
+ if (on) {
+ if (cur_bits == prio_bits) {
+ return;
+ }
+ mboolset(qi->stopped, prio_bits);
+ } else {
+ if (cur_bits == 0) {
+ return;
+ }
+ mboolclr(qi->stopped, prio_bits);
+ }
+
+ /* If there is a flow control override we will not change the external
+ * flow control state.
+ */
+ if (qi->stopped & ~TXQ_STOP_FOR_PRIOFC_MASK) {
+ return;
+ }
+
+ wlc_txflowcontrol_signal(wlc, qi, on, prio);
+}
+
+void
+wlc_txflowcontrol_override(struct wlc_info *wlc, wlc_txq_info_t *qi, bool on,
+ uint override)
+{
+ uint prev_override;
+
+ ASSERT(override != 0);
+ ASSERT((override & TXQ_STOP_FOR_PRIOFC_MASK) == 0);
+
+ prev_override = (qi->stopped & ~TXQ_STOP_FOR_PRIOFC_MASK);
+
+ /* Update the flow control bits and do an early return if there is
+ * no change in the external flow control state.
+ */
+ if (on) {
+ mboolset(qi->stopped, override);
+ /* if there was a previous override bit on, then setting this
+ * makes no difference.
+ */
+ if (prev_override) {
+ return;
+ }
+
+ wlc_txflowcontrol_signal(wlc, qi, ON, ALLPRIO);
+ } else {
+ mboolclr(qi->stopped, override);
+ /* clearing an override bit will only make a difference for
+ * flow control if it was the only bit set. For any other
+ * override setting, just return
+ */
+ if (prev_override != override) {
+ return;
+ }
+
+ if (qi->stopped == 0) {
+ wlc_txflowcontrol_signal(wlc, qi, OFF, ALLPRIO);
+ } else {
+ int prio;
+
+ for (prio = MAXPRIO; prio >= 0; prio--) {
+ if (!mboolisset(qi->stopped, NBITVAL(prio)))
+ wlc_txflowcontrol_signal(wlc, qi, OFF,
+ prio);
+ }
+ }
+ }
+}
+
+static void wlc_txflowcontrol_reset(struct wlc_info *wlc)
+{
+ wlc_txq_info_t *qi;
+
+ for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
+ if (qi->stopped) {
+ wlc_txflowcontrol_signal(wlc, qi, OFF, ALLPRIO);
+ qi->stopped = 0;
+ }
+ }
+}
+
+static void
+wlc_txflowcontrol_signal(struct wlc_info *wlc, wlc_txq_info_t *qi, bool on,
+ int prio)
+{
+ struct wlc_if *wlcif;
+
+ for (wlcif = wlc->wlcif_list; wlcif != NULL; wlcif = wlcif->next) {
+ if (wlcif->qi == qi && wlcif->flags & WLC_IF_LINKED)
+ wl_txflowcontrol(wlc->wl, wlcif->wlif, on, prio);
+ }
+}
+
+static wlc_txq_info_t *wlc_txq_alloc(struct wlc_info *wlc, struct osl_info *osh)
+{
+ wlc_txq_info_t *qi, *p;
+
+ qi = (wlc_txq_info_t *) wlc_calloc(osh, wlc->pub->unit,
+ sizeof(wlc_txq_info_t));
+ if (qi == NULL) {
+ return NULL;
+ }
+
+ /* Have enough room for control packets along with HI watermark */
+ /* Also, add room to txq for total psq packets if all the SCBs leave PS mode */
+ /* The watermark for flowcontrol to OS packets will remain the same */
+ pktq_init(&qi->q, WLC_PREC_COUNT,
+ (2 * wlc->pub->tunables->datahiwat) + PKTQ_LEN_DEFAULT +
+ wlc->pub->psq_pkts_total);
+
+ /* add this queue to the the global list */
+ p = wlc->tx_queues;
+ if (p == NULL) {
+ wlc->tx_queues = qi;
+ } else {
+ while (p->next != NULL)
+ p = p->next;
+ p->next = qi;
+ }
+
+ return qi;
+}
+
+static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh,
+ wlc_txq_info_t *qi)
+{
+ wlc_txq_info_t *p;
+
+ if (qi == NULL)
+ return;
+
+ /* remove the queue from the linked list */
+ p = wlc->tx_queues;
+ if (p == qi)
+ wlc->tx_queues = p->next;
+ else {
+ while (p != NULL && p->next != qi)
+ p = p->next;
+ ASSERT(p->next == qi);
+ if (p != NULL)
+ p->next = p->next->next;
+ }
+
+ kfree(qi);
+}
+
+/*
+ * Flag 'scan in progress' to withold dynamic phy calibration
+ */
+void wlc_scan_start(struct wlc_info *wlc)
+{
+ wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, true);
+}
+
+void wlc_scan_stop(struct wlc_info *wlc)
+{
+ wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, false);
+}
projects / mv-sheeva.git / blobdiff