diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmsmac/wlc_main.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmsmac/wlc_main.c | 7537 |
1 files changed, 0 insertions, 7537 deletions
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.c b/drivers/staging/brcm80211/brcmsmac/wlc_main.c deleted file mode 100644 index 99250e29461f..000000000000 --- a/drivers/staging/brcm80211/brcmsmac/wlc_main.c +++ /dev/null @@ -1,7537 +0,0 @@ -/* - * 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 <linux/pci_ids.h> -#include <net/mac80211.h> - -#include <bcmdefs.h> -#include <bcmdevs.h> -#include <bcmutils.h> -#include <bcmwifi.h> -#include <bcmnvram.h> -#include <aiutils.h> -#include <pcicfg.h> -#include <bcmsrom.h> -#include <wlioctl.h> -#include <sbhnddma.h> -#include <hnddma.h> - -#include "wlc_pmu.h" -#include "d11.h" -#include "wlc_types.h" -#include "wlc_cfg.h" -#include "wlc_rate.h" -#include "wlc_scb.h" -#include "wlc_pub.h" -#include "wlc_key.h" -#include "wlc_bsscfg.h" -#include "phy/wlc_phy_hal.h" -#include "wlc_channel.h" -#include "wlc_main.h" -#include "wlc_bmac.h" -#include "wlc_phy_hal.h" -#include "wlc_phy_shim.h" -#include "wlc_antsel.h" -#include "wlc_stf.h" -#include "wlc_ampdu.h" -#include "wl_export.h" -#include "wlc_alloc.h" -#include "wl_dbg.h" - -#include "wl_mac80211.h" - -/* - * WPA(2) definitions - */ -#define RSN_CAP_4_REPLAY_CNTRS 2 -#define RSN_CAP_16_REPLAY_CNTRS 3 - -#define WPA_CAP_4_REPLAY_CNTRS RSN_CAP_4_REPLAY_CNTRS -#define WPA_CAP_16_REPLAY_CNTRS RSN_CAP_16_REPLAY_CNTRS - -/* - * Indication for txflowcontrol that all priority bits in - * TXQ_STOP_FOR_PRIOFC_MASK are to be considered. - */ -#define ALLPRIO -1 - -/* - * 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 * IEEE80211_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_RTSTHRESH, - 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, (0), IOVT_BOOL, 0}, - {"rtsthresh", IOV_RTSTHRESH, (IOVF_WHL), IOVT_UINT16, 0}, - {"qtxpower", IOV_QTXPOWER, (IOVF_WHL), 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" }; -#else -static const char fifo_names[6][0]; -#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 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 u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate); -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 struct wlc_txq_info *wlc_txq_alloc(struct wlc_info *wlc); -static void wlc_txq_free(struct wlc_info *wlc, - struct wlc_txq_info *qi); -static void wlc_txflowcontrol_signal(struct wlc_info *wlc, - struct wlc_txq_info *qi, - bool on, int prio); -static void wlc_txflowcontrol_reset(struct wlc_info *wlc); -static void wlc_compute_cck_plcp(struct wlc_info *wlc, 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 u64 wlc_recover_tsf64(struct wlc_info *wlc, struct wlc_d11rxhdr *rxh); -static void wlc_recvctl(struct wlc_info *wlc, - 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_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); - -/* 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; - struct wlc_bsscfg *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) -{ - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - wlc->check_for_unaligned_tbtt = false; - - /* slurp up hw mac counters before core reset */ - 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->txretried = 0; - -} - -void wlc_fatal_error(struct wlc_info *wlc) -{ - wiphy_err(wlc->wiphy, "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; - - 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; - struct wlc_bsscfg *bsscfg; - bool mute = false; - - BCMMSG(wlc->wiphy, "wl%d\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 (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); - - /* 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 and convert to uS */ - bi = bsscfg->current_bss->beacon_period << 10; - /* - * update since init path would reset - * to default value - */ - W_REG(®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(®s->ifs_ctl, IFS_USEEDCF); - wlc_edcf_setparams(wlc, 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 */ - W_REG(&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) { /* Uninitialized; read from HW */ - int ac; - - 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); -} - -/* push sw hps and wake state through hardware */ -void wlc_set_ps_ctrl(struct wlc_info *wlc) -{ - u32 v1, v2; - bool hps; - bool awake_before; - - hps = PS_ALLOWED(wlc); - - BCMMSG(wlc->wiphy, "wl%d: hps %d\n", wlc->pub->unit, hps); - - v1 = R_REG(&wlc->regs->maccontrol); - v2 = MCTL_WAKE; - if (hps) - v2 |= MCTL_HPS; - - wlc_mctrl(wlc, MCTL_WAKE | MCTL_HPS, v2); - - awake_before = ((v1 & MCTL_WAKE) || ((v1 & MCTL_HPS) == 0)); - - if (!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(struct wlc_bsscfg *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(struct wlc_bsscfg *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; - struct wlc_bsscfg *cfg; - - /* 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 &= - ~WLAN_CAPABILITY_SHORT_SLOT_TIME; - if (wlc->shortslot) - cfg->current_bss->capability |= - WLAN_CAPABILITY_SHORT_SLOT_TIME; - } - - 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 && - (bcm_chspec_ctlchan(wlc->chanspec) == - bcm_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; - struct wlc_bsscfg *cfg; - - wlc->home_chanspec = chanspec; - - FOREACH_BSS(wlc, idx, cfg) { - if (!cfg->associated) - continue; - - 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)) { - wiphy_err(wlc->wiphy, "wl%d: %s: Bad channel %d\n", - wlc->pub->unit, __func__, CHSPEC_CHANNEL(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) { - wiphy_err(wlc->wiphy, "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); - } - } - - /* sync up phy/radio chanspec */ - wlc_set_phy_chanspec(wlc, chanspec); - - /* init antenna selection */ - if (CHSPEC_WLC_BW(old_chanspec) != CHSPEC_WLC_BW(chanspec)) { - 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 -EOVERFLOW; - - 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) { - memcpy(pwr, &power, 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] & WLC_RATE_MASK; - for (i = 0; i < rs->count; i++) { - if (rs->rates[i] & WLC_RATE_FLAG) { - lowest_basic_rspec = rs->rates[i] & WLC_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) -{ - BCMMSG(wlc->wiphy, "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: - break; - } - -} - -static void wlc_ht_update_sgi_rx(struct wlc_info *wlc, int val) -{ - wlc->ht_cap.cap_info &= ~(IEEE80211_HT_CAP_SGI_20 | - IEEE80211_HT_CAP_SGI_40); - wlc->ht_cap.cap_info |= (val & WLC_N_SGI_20) ? - IEEE80211_HT_CAP_SGI_20 : 0; - wlc->ht_cap.cap_info |= (val & WLC_N_SGI_40) ? - IEEE80211_HT_CAP_SGI_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_info &= ~IEEE80211_HT_CAP_LDPC_CODING; - if (wlc->stf->ldpc != OFF) - wlc->ht_cap.cap_info |= IEEE80211_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]; - - BCMMSG(wlc->wiphy, "wl%d\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) { - 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, WLC_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) -{ - BCMMSG(wlc->wiphy, "wl%d: 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 */ - wlc_antsel_init(wlc->asi); - -} - -/* switch to and initialize new band */ -static void WLBANDINITFN(wlc_setband) (struct wlc_info *wlc, uint bandunit) -{ - int idx; - struct wlc_bsscfg *cfg; - - 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, - cpu_to_le16(EDCF_AC_BE_TXOP_STA)}, - {EDCF_AC_BK_ACI_STA, EDCF_AC_BK_ECW_STA, - cpu_to_le16(EDCF_AC_BK_TXOP_STA)}, - {EDCF_AC_VI_ACI_STA, EDCF_AC_VI_ECW_STA, - cpu_to_le16(EDCF_AC_VI_TXOP_STA)}, - {EDCF_AC_VO_ACI_STA, EDCF_AC_VO_ECW_STA, - cpu_to_le16(EDCF_AC_VO_TXOP_STA)} - } - }; - memcpy(pe, &stadef, sizeof(*pe)); -} - -void wlc_wme_setparams(struct wlc_info *wlc, u16 aci, - const struct ieee80211_tx_queue_params *params, - bool suspend) -{ - int i; - shm_acparams_t acp_shm; - u16 *shm_entry; - - /* Only apply params if the core is out of reset and has clocks */ - if (!wlc->clk) { - wiphy_err(wlc->wiphy, "wl%d: %s : no-clock\n", wlc->pub->unit, - __func__); - return; - } - - wlc->wme_admctl = 0; - - do { - memset((char *)&acp_shm, 0, sizeof(shm_acparams_t)); - /* fill in shm ac params struct */ - acp_shm.txop = le16_to_cpu(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) { - wiphy_err(wlc->wiphy, "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->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(struct wlc_info *wlc, bool suspend) -{ - u16 aci; - int i_ac; - edcf_acparam_t *edcf_acp; - - struct ieee80211_tx_queue_params txq_pars; - struct ieee80211_tx_queue_params *params = &txq_pars; - - /* - * 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]; - - for (i_ac = 0; i_ac < AC_COUNT; i_ac++, edcf_acp++) { - /* find out which ac this set of params applies to */ - aci = (edcf_acp->ACI & EDCF_ACI_MASK) >> EDCF_ACI_SHIFT; - /* 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 */ - params->txop = edcf_acp->TXOP; - params->aifs = edcf_acp->ACI; - - /* CWmin = 2^(ECWmin) - 1 */ - params->cw_min = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK); - /* CWmax = 2^(ECWmax) - 1 */ - params->cw_max = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK) - >> EDCF_ECWMAX_SHIFT); - wlc_wme_setparams(wlc, aci, params, suspend); - } - - 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) { - wiphy_err(wlc->wiphy, "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) { - wiphy_err(wlc->wiphy, "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; - - /* initialize 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); - if (wlc->asi == NULL) { - wiphy_err(wlc->wiphy, "wl%d: wlc_attach: wlc_antsel_attach " - "failed\n", unit); - err = 44; - goto fail; - } - - wlc->ampdu = wlc_ampdu_attach(wlc); - if (wlc->ampdu == NULL) { - wiphy_err(wlc->wiphy, "wl%d: wlc_attach: wlc_ampdu_attach " - "failed\n", unit); - err = 50; - goto fail; - } - - if ((wlc_stf_attach(wlc) != 0)) { - wiphy_err(wlc->wiphy, "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(struct wl_info *wl, u16 vendor, u16 device, uint unit, - bool piomode, void *regsva, uint bustype, void *btparam, - uint *perr) -{ - struct wlc_info *wlc; - uint err = 0; - uint j; - struct wlc_pub *pub; - uint n_disabled; - - /* allocate struct wlc_info state and its substructures */ - wlc = (struct wlc_info *) wlc_attach_malloc(unit, &err, device); - if (wlc == NULL) - goto fail; - wlc->wiphy = wl->wiphy; - 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; - 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, 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); - - memcpy(&pub->cur_etheraddr, &wlc->perm_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, WLC_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)) { - wiphy_err(wl->wiphy, "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) { - wiphy_err(wl->wiphy, "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 */ - wlc->pkt_queue = wlc_txq_alloc(wlc); - if (wlc->pkt_queue == NULL) { - wiphy_err(wl->wiphy, "wl%d: %s: failed to malloc tx queue\n", - unit, __func__); - err = 100; - goto fail; - } - - wlc->bsscfg[0] = wlc->cfg; - wlc->cfg->_idx = 0; - wlc->cfg->wlc = wlc; - pub->txmaxpkts = MAXTXPKTS; - - wlc_wme_initparams_sta(wlc, &wlc->wme_param_ie); - - wlc->mimoft = FT_HT; - wlc->ht_cap.cap_info = 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_info &= ~IEEE80211_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_info &= ~IEEE80211_HT_CAP_GRN_FLD; - - /* initialize radio_mpc_disable according to wlc->mpc */ - wlc_radio_mpc_upd(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: - wiphy_err(wl->wiphy, "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) { - wiphy_err(wlc->wiphy, "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)) { - wiphy_err(wlc->wiphy, "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 callbacks = 0; - - if (wlc == NULL) - return 0; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - callbacks += wlc_bmac_detach(wlc); - - /* delete software timers */ - if (!wlc_radio_monitor_stop(wlc)) - callbacks++; - - wlc_channel_mgr_detach(wlc->cmi); - - wlc_timers_deinit(wlc); - - wlc_detach_module(wlc); - - /* free other state */ - - -#ifdef BCMDBG - kfree(wlc->country_ie_override); - wlc->country_ie_override = NULL; -#endif /* BCMDBG */ - - { - /* free dumpcb list */ - struct dumpcb_s *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->tx_queues); - - wlc_detach_mfree(wlc); - 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) -{ - /* 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); - } -} - -/* update hwradio status and return it */ -bool wlc_check_radio_disabled(struct wlc_info *wlc) -{ - wlc_radio_hwdisable_upd(wlc); - - return mboolisset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE) ? true : false; -} - -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)) { - wiphy_err(wlc->wiphy, "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++; - - 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; - - wlc->radio_monitor = false; - wlc_pllreq(wlc, false, WLC_PLLREQ_RADIO_MON); - return wl_del_timer(wlc->wl, wlc->radio_timer); -} - -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; - struct wlc_bsscfg *cfg; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - if (!wlc->pub->up) - return; - - if (DEVICEREMOVED(wlc)) { - wiphy_err(wlc->wiphy, "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 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->pub->now % SW_TIMER_MAC_STAT_UPD) == 0) - 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); - } -} - -/* make interface operational */ -int wlc_up(struct wlc_info *wlc) -{ - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - /* HW is turned off so don't try to access it */ - if (wlc->pub->hw_off || DEVICEREMOVED(wlc)) - return -ENOMEDIUM; - - 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 == -ENOMEDIUM) { - if (!mboolisset - (wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE)) { - int idx; - struct wlc_bsscfg *bsscfg; - mboolset(wlc->pub->radio_disabled, - WL_RADIO_HW_DISABLE); - - FOREACH_BSS(wlc, idx, bsscfg) { - if (!BSSCFG_STA(bsscfg) - || !bsscfg->enable || !bsscfg->BSS) - continue; - wiphy_err(wlc->wiphy, "wl%d.%d: wlc_up" - ": rfdisable -> " - "wlc_bsscfg_disable()\n", - wlc->pub->unit, idx); - } - } - } - } - - 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 */ - 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; - struct wlc_txq_info *qi; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - /* check if we are already in the going down path */ - if (wlc->going_down) { - wiphy_err(wlc->wiphy, "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); - - 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) { - bcm_pktq_flush(&qi->q, true, NULL, NULL); - } - - callbacks += wlc_bmac_down_finish(wlc->hw); - - /* wlc_bmac_down_finish has done wlc_coredisable(). so clk is off */ - wlc->clk = false; - - 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 -ENOTSUPP; - - /* 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 -EINVAL; - - /* 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 -EINVAL; - - /* 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 */ - wiphy_err(wlc->wiphy, "wl%d: %s: invalid gmode %d\n", - wlc->pub->unit, __func__, gmode); - return -ENOTSUPP; - } - - /* - * 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 |= WLAN_CAPABILITY_SHORT_PREAMBLE; - else - wlc->default_bss->capability &= ~WLAN_CAPABILITY_SHORT_PREAMBLE; - - /* 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 |= WLAN_CAPABILITY_SHORT_SLOT_TIME; - else - wlc->default_bss->capability &= - ~WLAN_CAPABILITY_SHORT_SLOT_TIME; - - /* 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; - memcpy(wlc->default_bss->rateset.rates, rs.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 = -EINVAL; - break; - - default: - err = -EINVAL; - break; - } - - return err; -} - -int wlc_set_nmode(struct wlc_info *wlc, s32 nmode) -{ - uint i; - int err; - - err = wlc_nmode_validate(wlc, nmode); - 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: - /* 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: - break; - } - - return err; -} - -static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg) -{ - wlc_rateset_t rs, new; - uint bandunit; - - memcpy(&rs, rs_arg, sizeof(wlc_rateset_t)); - - /* check for bad count value */ - if ((rs.count == 0) || (rs.count > WLC_NUMRATES)) - return -EINVAL; - - /* try the current band */ - bandunit = wlc->band->bandunit; - memcpy(&new, &rs, 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); - memcpy(&new, &rs, sizeof(wlc_rateset_t)); - if (wlc_rate_hwrs_filter_sort_validate(&new, - &wlc-> - bandstate[bandunit]-> - hw_rateset, true, - wlc->stf->txstreams)) - goto good; - } - - return -EBADE; - - good: - /* apply new rateset */ - memcpy(&wlc->default_bss->rateset, &new, sizeof(wlc_rateset_t)); - memcpy(&wlc->bandstate[bandunit]->defrateset, &new, - 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; - struct wlc_bsscfg *bsscfg; - wlc_bss_info_t *current_bss; - - /* update bsscfg pointer */ - bsscfg = wlc->cfg; - current_bss = bsscfg->current_bss; - - /* 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)) { - wiphy_err(wlc->wiphy, "wl%d: %s: dead chip\n", wlc->pub->unit, - __func__); - wl_down(wlc->wl); - return -EBADE; - } - - /* default argument is generic integer */ - pval = arg ? (int *)arg:NULL; - - /* This will prevent the misaligned access */ - if (pval && (u32) len >= sizeof(val)) - memcpy(&val, pval, sizeof(val)); - else - val = 0; - - /* bool conversion to avoid duplication below */ - bool_val = val != 0; - bcmerror = 0; - regs = wlc->regs; - - /* 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)) { - wiphy_err(wlc->wiphy, "wl%d: %s: Command %d needs " - "arguments\n", - wlc->pub->unit, __func__, cmd); - bcmerror = -EINVAL; - 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; - - if (len <= (int)sizeof(ci)) { - bcmerror = EOVERFLOW; - goto done; - } - - 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 = -EINVAL; - break; - } - - if (!wlc_valid_chanspec_db(wlc->cmi, chspec)) { - bcmerror = -EINVAL; - 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_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 = -ENOLINK; - 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 = -EINVAL; - break; - } - - *pval = wlc_bmac_mhf_get(wlc->hw, (u8) val, WLC_BAND_AUTO); - break; - - case WLC_SET_UCFLAGS: - if (!wlc->pub->up) { - bcmerror = -ENOLINK; - 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 = -EINVAL; - 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 = -EINVAL; - 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 = -EINVAL; - 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 = -EOVERFLOW; - 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 = -EINVAL; - break; - } - if (r->size == sizeof(u32)) - r->val = - R_REG((u32 *)((unsigned char *)(unsigned long)regs + - r->byteoff)); - else if (r->size == sizeof(u16)) - r->val = - R_REG((u16 *)((unsigned char *)(unsigned long)regs + - r->byteoff)); - else - bcmerror = -EINVAL; - 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 = -EOVERFLOW; - 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 = -EINVAL; - break; - } - if (r->size == sizeof(u32)) - W_REG((u32 *)((unsigned char *)(unsigned long) regs + - r->byteoff), r->val); - else if (r->size == sizeof(u16)) - W_REG((u16 *)((unsigned char *)(unsigned long) regs + - r->byteoff), r->val); - else - bcmerror = -EINVAL; - 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 = -EINVAL; - 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 = -ENOLINK; - break; - } - - rxstatus = R_REG(&wlc->regs->phyrxstatus0); - if (rxstatus == 0xdead || rxstatus == (u16) -1) { - bcmerror = -EBADE; - break; - } - *pval = (rxstatus & PRXS0_RXANT_UPSUBBAND) ? 1 : 0; - break; - } - -#if defined(BCMDBG) - case WLC_GET_UCANTDIV: - if (!wlc->clk) { - bcmerror = -EIO; - break; - } - - *pval = - (wlc_bmac_mhf_get(wlc->hw, MHF1, WLC_BAND_AUTO) & - MHF1_ANTDIV); - break; - - case WLC_SET_UCANTDIV:{ - if (!wlc->pub->up) { - bcmerror = -ENOLINK; - break; - } - - /* if multiband, band must be locked */ - if (IS_MBAND_UNLOCKED(wlc)) { - bcmerror = -ENOMEDIUM; - break; - } - - 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 = -EINVAL; - 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 = -EINVAL; - break; - - case WLC_GET_CWMIN: - *pval = wlc->band->CWmin; - break; - - case WLC_SET_CWMIN: - if (!wlc->clk) { - bcmerror = -EIO; - break; - } - - if (val >= 1 && val <= 255) { - wlc_set_cwmin(wlc, (u16) val); - } else - bcmerror = -EINVAL; - break; - - case WLC_GET_CWMAX: - *pval = wlc->band->CWmax; - break; - - case WLC_SET_CWMAX: - if (!wlc->clk) { - bcmerror = -EIO; - break; - } - - if (val >= 255 && val <= 2047) { - wlc_set_cwmax(wlc, (u16) val); - } else - bcmerror = -EINVAL; - 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)) { - wiphy_err(wlc->wiphy, "SET_RADIO with wrong " - "bits 0x%x\n", val); - bcmerror = -EINVAL; - 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 = -EOVERFLOW; - break; - } - - memset((char *)&key, 0, sizeof(key)); - if (src_key) { - key.index = src_key->id; - key.len = src_key->len; - memcpy(key.data, src_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; - - memcpy(key.ea, src_key->ea, ETH_ALEN); - } - - memcpy(arg, &key, sizeof(key)); - } else - bcmerror = -EINVAL; - 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 = -EOVERFLOW; - 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)) { - 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; - - memcpy(arg, seq, sizeof(seq)); - } else { - bcmerror = -EINVAL; - } - break; - } - - case WLC_GET_CURR_RATESET:{ - wl_rateset_t *ret_rs = (wl_rateset_t *) arg; - wlc_rateset_t *rs; - - if (wlc->pub->associated) - rs = ¤t_bss->rateset; - else - rs = &wlc->default_bss->rateset; - - if (len < (int)(rs->count + sizeof(rs->count))) { - bcmerror = -EOVERFLOW; - break; - } - - /* Copy only legacy rateset section */ - ret_rs->count = rs->count; - memcpy(&ret_rs->rates, &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 = -EOVERFLOW; - break; - } - - /* Copy only legacy rateset section */ - ret_rs->count = rs.count; - memcpy(&ret_rs->rates, &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 = -EOVERFLOW; - break; - } - - if (in_rs->count > WLC_NUMRATES) { - bcmerror = -ENOBUFS; - break; - } - - memset(&rs, 0, sizeof(wlc_rateset_t)); - - /* Copy only legacy rateset section */ - rs.count = in_rs->count; - memcpy(&rs.rates, &in_rs->rates, rs.count); - - /* merge rateset coming in with the current mcsset */ - if (N_ENAB(wlc->pub)) { - if (bsscfg->associated) - memcpy(rs.mcs, - ¤t_bss->rateset.mcs[0], - MCSSET_LEN); - else - memcpy(rs.mcs, - &wlc->default_bss->rateset.mcs[0], - 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 = -EINVAL; - 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 = -EINVAL; - 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 = -EBADE; - 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; - -#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 = -EOVERFLOW; - 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 = -EINVAL; - 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 = -EISCONN; - 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 = -EINVAL; - 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 = -EINVAL; - 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 = -EOVERFLOW; - break; - } - memcpy(&rs, arg, sizeof(wlc_rateset_t)); - - /* check for bad count value */ - if (rs.count > WLC_NUMRATES) { - bcmerror = -EINVAL; - break; - } - - /* this command is only appropriate for gmode operation */ - if (!(wlc->band->gmode || - ((NBANDS(wlc) > 1) - && wlc->bandstate[OTHERBANDUNIT(wlc)]->gmode))) { - /* gmode only command when not in gmode */ - bcmerror = -EINVAL; - 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, WLC_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 = -EINVAL; - break; - } - - /* apply new rateset to the override */ - memcpy(&wlc->sup_rates_override, &new, - 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))) { - /* gmode only command when not in gmode */ - bcmerror = -EINVAL; - break; - } - if (len < (int)sizeof(wlc_rateset_t)) { - bcmerror = -EOVERFLOW; - break; - } - memcpy(arg, &wlc->sup_rates_override, 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 = -EISCONN; - break; - } - if (val < 0 || val >= 0xFFFF) { - bcmerror = -EINVAL; /* 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 = -EINVAL; - } - break; - } - - case WLC_SET_KEY_PRIMARY:{ - wsec_key_t *key, *old_key; - - bcmerror = -EINVAL; - - /* 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 = 0; - } - } - 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 = -EOVERFLOW; - 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 = -ENOTSUPP; - break; - -#if defined(BCMDBG) - case WLC_CURRENT_PWR: - if (!wlc->pub->up) - bcmerror = -ENOLINK; - else - bcmerror = wlc_get_current_txpwr(wlc, arg, len); - break; -#endif - - case WLC_LAST: - wiphy_err(wlc->wiphy, "%s: WLC_LAST\n", __func__); - } - done: - - if (bcmerror) - wlc->pub->bcmerror = bcmerror; - - 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 -EINVAL; - - /* if multiband and band is not specified, band must be locked */ - if ((band == WLC_BAND_AUTO) && IS_MBAND_UNLOCKED(wlc)) - return -ENOMEDIUM; - - /* must have core clocks */ - if (!wlc->clk) - return -EIO; - - return 0; -} -#endif /* defined(BCMDBG) */ - -/* 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; - - 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); -} - -/* - * 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; - - /* 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; - } - } - - return -ENOSR; -} - -/* 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 -ENODATA; - - 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(struct modulecb)); - return 0; - } - } - - /* table not found! */ - return -ENODATA; -} - -/* 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; - - if (!set && (len == sizeof(int)) && - !(IS_ALIGNED((unsigned long)(arg), (uint) sizeof(int)))) { - wiphy_err(wlc->wiphy, "wl%d: %s unaligned get ptr for %s\n", - wlc->pub->unit, __func__, name); - return -ENOTSUPP; - } - - /* 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) { - return -ENOTSUPP; - } - - /* 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); - 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 ? -EISCONN : -ENOLINK); - } else if ((vi->flags & IOVF_SET_BAND) - && IS_MBAND_UNLOCKED(wlc)) { - err = -ENOMEDIUM; - } else if ((vi->flags & IOVF_SET_CLK) && !wlc->clk) { - err = -EIO; - } - } else { - if (((vi->flags & IOVF_GET_DOWN) && wlc->pub->up) || - ((vi->flags & IOVF_GET_UP) && !wlc->pub->up)) { - err = (wlc->pub->up ? -EISCONN : -ENOLINK); - } else if ((vi->flags & IOVF_GET_BAND) - && IS_MBAND_UNLOCKED(wlc)) { - err = -ENOMEDIUM; - } else if ((vi->flags & IOVF_GET_CLK) && !wlc->clk) { - err = -EIO; - } - } - - 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: - memcpy(&int_val, arg, 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; - struct wlc_bsscfg *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; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - 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)) - memcpy(&int_val, params, sizeof(int_val)); - - if (p_len >= (int)sizeof(int_val) * 2) - memcpy(&int_val2, - (void *)((unsigned long)params + sizeof(int_val)), - 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; - - BCMMSG(wlc->wiphy, "wl%d: id %d\n", wlc->pub->unit, IOV_ID(actionid)); - /* Do the actual parameter implementation */ - switch (actionid) { - case IOV_SVAL(IOV_RTSTHRESH): - wlc->RTSThresh = int_val; - break; - - case IOV_GVAL(IOV_QTXPOWER):{ - uint qdbm; - bool override; - - err = wlc_phy_txpower_get(wlc->band->pi, &qdbm, - &override); - if (err != 0) - 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: - wiphy_err(wlc->wiphy, "wl%d: %s: unsupported\n", - wlc->pub->unit, __func__); - err = -ENOTSUPP; - 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 = -EINVAL; - 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 = -EINVAL; - 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) -{ - printk(KERN_DEBUG "[15:12] %d frame attempts\n", - (s & TX_STATUS_FRM_RTX_MASK) >> TX_STATUS_FRM_RTX_SHIFT); - printk(KERN_DEBUG " [11:8] %d rts attempts\n", - (s & TX_STATUS_RTS_RTX_MASK) >> TX_STATUS_RTS_RTX_SHIFT); - printk(KERN_DEBUG " [7] %d PM mode indicated\n", - ((s & TX_STATUS_PMINDCTD) ? 1 : 0)); - printk(KERN_DEBUG " [6] %d intermediate status\n", - ((s & TX_STATUS_INTERMEDIATE) ? 1 : 0)); - printk(KERN_DEBUG " [5] %d AMPDU\n", - (s & TX_STATUS_AMPDU) ? 1 : 0); - printk(KERN_DEBUG " [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]); - printk(KERN_DEBUG " [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; - - printk(KERN_DEBUG "\ntxpkt (MPDU) Complete\n"); - - printk(KERN_DEBUG "FrameID: %04x ", txs->frameid); - printk(KERN_DEBUG "TxStatus: %04x", s); - printk(KERN_DEBUG "\n"); - - wlc_print_txs_status(s); - - printk(KERN_DEBUG "LastTxTime: %04x ", txs->lasttxtime); - printk(KERN_DEBUG "Seq: %04x ", txs->sequence); - printk(KERN_DEBUG "PHYTxStatus: %04x ", txs->phyerr); - printk(KERN_DEBUG "RxAckRSSI: %04x ", - (ackphyrxsh & PRXS1_JSSI_MASK) >> PRXS1_JSSI_SHIFT); - printk(KERN_DEBUG "RxAckSQ: %04x", - (ackphyrxsh & PRXS1_SQ_MASK) >> PRXS1_SQ_SHIFT); - printk(KERN_DEBUG "\n"); -#endif /* defined(BCMDBG) */ -} - -void wlc_statsupd(struct wlc_info *wlc) -{ - int i; - macstat_t macstats; -#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 */ - - /* Read mac stats from contiguous shared memory */ - wlc_bmac_copyfrom_shm(wlc->hw, M_UCODE_MACSTAT, - &macstats, sizeof(macstat_t)); - -#ifdef BCMDBG - /* check for rx fifo 0 overflow */ - delta = (u16) (wlc->core->macstat_snapshot->rxf0ovfl - rxf0ovfl); - if (delta) - wiphy_err(wlc->wiphy, "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) - wiphy_err(wlc->wiphy, "wl%d: %u tx fifo %d underflows!" - "\n", wlc->pub->unit, delta, i); - } -#endif /* BCMDBG */ - - /* merge counters from dma module */ - for (i = 0; i < NFIFO; i++) { - if (wlc->hw->di[i]) { - dma_counterreset(wlc->hw->di[i]); - } - } -} - -bool wlc_chipmatch(u16 vendor, u16 device) -{ - if (vendor != PCI_VENDOR_ID_BROADCOM) { - pr_err("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; - - pr_err("wlc_chipmatch: unknown device id %04x\n", device); - return false; -} - -#if defined(BCMDBG) -void wlc_print_txdesc(d11txh_t *txh) -{ - u16 mtcl = le16_to_cpu(txh->MacTxControlLow); - u16 mtch = le16_to_cpu(txh->MacTxControlHigh); - u16 mfc = le16_to_cpu(txh->MacFrameControl); - u16 tfest = le16_to_cpu(txh->TxFesTimeNormal); - u16 ptcw = le16_to_cpu(txh->PhyTxControlWord); - u16 ptcw_1 = le16_to_cpu(txh->PhyTxControlWord_1); - u16 ptcw_1_Fbr = le16_to_cpu(txh->PhyTxControlWord_1_Fbr); - u16 ptcw_1_Rts = le16_to_cpu(txh->PhyTxControlWord_1_Rts); - u16 ptcw_1_FbrRts = le16_to_cpu(txh->PhyTxControlWord_1_FbrRts); - u16 mainrates = le16_to_cpu(txh->MainRates); - u16 xtraft = le16_to_cpu(txh->XtraFrameTypes); - u8 *iv = txh->IV; - u8 *ra = txh->TxFrameRA; - u16 tfestfb = le16_to_cpu(txh->TxFesTimeFallback); - u8 *rtspfb = txh->RTSPLCPFallback; - u16 rtsdfb = le16_to_cpu(txh->RTSDurFallback); - u8 *fragpfb = txh->FragPLCPFallback; - u16 fragdfb = le16_to_cpu(txh->FragDurFallback); - u16 mmodelen = le16_to_cpu(txh->MModeLen); - u16 mmodefbrlen = le16_to_cpu(txh->MModeFbrLen); - u16 tfid = le16_to_cpu(txh->TxFrameID); - u16 txs = le16_to_cpu(txh->TxStatus); - u16 mnmpdu = le16_to_cpu(txh->MaxNMpdus); - u16 mabyte = le16_to_cpu(txh->MaxABytes_MRT); - u16 mabyte_f = le16_to_cpu(txh->MaxABytes_FBR); - u16 mmbyte = le16_to_cpu(txh->MinMBytes); - - u8 *rtsph = txh->RTSPhyHeader; - struct ieee80211_rts rts = txh->rts_frame; - char hexbuf[256]; - - /* add plcp header along with txh descriptor */ - printk(KERN_DEBUG "Raw TxDesc + plcp header:\n"); - print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, - txh, sizeof(d11txh_t) + 48); - - printk(KERN_DEBUG "TxCtlLow: %04x ", mtcl); - printk(KERN_DEBUG "TxCtlHigh: %04x ", mtch); - printk(KERN_DEBUG "FC: %04x ", mfc); - printk(KERN_DEBUG "FES Time: %04x\n", tfest); - printk(KERN_DEBUG "PhyCtl: %04x%s ", ptcw, - (ptcw & PHY_TXC_SHORT_HDR) ? " short" : ""); - printk(KERN_DEBUG "PhyCtl_1: %04x ", ptcw_1); - printk(KERN_DEBUG "PhyCtl_1_Fbr: %04x\n", ptcw_1_Fbr); - printk(KERN_DEBUG "PhyCtl_1_Rts: %04x ", ptcw_1_Rts); - printk(KERN_DEBUG "PhyCtl_1_Fbr_Rts: %04x\n", ptcw_1_FbrRts); - printk(KERN_DEBUG "MainRates: %04x ", mainrates); - printk(KERN_DEBUG "XtraFrameTypes: %04x ", xtraft); - printk(KERN_DEBUG "\n"); - - bcm_format_hex(hexbuf, iv, sizeof(txh->IV)); - printk(KERN_DEBUG "SecIV: %s\n", hexbuf); - bcm_format_hex(hexbuf, ra, sizeof(txh->TxFrameRA)); - printk(KERN_DEBUG "RA: %s\n", hexbuf); - - printk(KERN_DEBUG "Fb FES Time: %04x ", tfestfb); - bcm_format_hex(hexbuf, rtspfb, sizeof(txh->RTSPLCPFallback)); - printk(KERN_DEBUG "RTS PLCP: %s ", hexbuf); - printk(KERN_DEBUG "RTS DUR: %04x ", rtsdfb); - bcm_format_hex(hexbuf, fragpfb, sizeof(txh->FragPLCPFallback)); - printk(KERN_DEBUG "PLCP: %s ", hexbuf); - printk(KERN_DEBUG "DUR: %04x", fragdfb); - printk(KERN_DEBUG "\n"); - - printk(KERN_DEBUG "MModeLen: %04x ", mmodelen); - printk(KERN_DEBUG "MModeFbrLen: %04x\n", mmodefbrlen); - - printk(KERN_DEBUG "FrameID: %04x\n", tfid); - printk(KERN_DEBUG "TxStatus: %04x\n", txs); - - printk(KERN_DEBUG "MaxNumMpdu: %04x\n", mnmpdu); - printk(KERN_DEBUG "MaxAggbyte: %04x\n", mabyte); - printk(KERN_DEBUG "MaxAggbyte_fb: %04x\n", mabyte_f); - printk(KERN_DEBUG "MinByte: %04x\n", mmbyte); - - bcm_format_hex(hexbuf, rtsph, sizeof(txh->RTSPhyHeader)); - printk(KERN_DEBUG "RTS PLCP: %s ", hexbuf); - bcm_format_hex(hexbuf, (u8 *) &rts, sizeof(txh->rts_frame)); - printk(KERN_DEBUG "RTS Frame: %s", hexbuf); - printk(KERN_DEBUG "\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} - }; - - printk(KERN_DEBUG "Raw RxDesc:\n"); - print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, rxh, sizeof(d11rxhdr_t)); - - bcm_format_flags(macstat_flags, macstatus1, flagstr, 64); - - snprintf(lenbuf, sizeof(lenbuf), "0x%x", len); - - printk(KERN_DEBUG "RxFrameSize: %6s (%d)%s\n", lenbuf, len, - (rxh->PhyRxStatus_0 & PRXS0_SHORTH) ? " short preamble" : ""); - printk(KERN_DEBUG "RxPHYStatus: %04x %04x %04x %04x\n", - phystatus_0, phystatus_1, phystatus_2, phystatus_3); - printk(KERN_DEBUG "RxMACStatus: %x %s\n", macstatus1, flagstr); - printk(KERN_DEBUG "RXMACaggtype: %x\n", - (macstatus2 & RXS_AGGTYPE_MASK)); - printk(KERN_DEBUG "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 > IEEE80211_MAX_SSID_LEN) - ssid_len = IEEE80211_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'; - return (int)(p - buf); -} -#endif /* defined(BCMDBG) */ - -static 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 -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 -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 = bcm_pktq_peek_tail(q, &eprec); - if (eprec > prec) { - wiphy_err(wlc->wiphy, "%s: Failing: eprec %d > prec %d" - "\n", __func__, eprec, prec); - return false; - } - } - - /* Evict if needed */ - if (eprec >= 0) { - bool discard_oldest; - - discard_oldest = AC_BITMAP_TST(wlc->wme_dp, eprec); - - /* Refuse newer packet unless configured to discard oldest */ - if (eprec == prec && !discard_oldest) { - wiphy_err(wlc->wiphy, "%s: No where to go, prec == %d" - "\n", __func__, prec); - return false; - } - - /* Evict packet according to discard policy */ - p = discard_oldest ? bcm_pktq_pdeq(q, eprec) : - bcm_pktq_pdeq_tail(q, eprec); - bcm_pkt_buf_free_skb(p); - } - - /* Enqueue */ - if (head) - p = bcm_pktq_penq_head(q, prec, pkt); - else - p = bcm_pktq_penq(q, prec, pkt); - - return true; -} - -void wlc_txq_enq(void *ctx, struct scb *scb, struct sk_buff *sdu, - uint prec) -{ - struct wlc_info *wlc = (struct wlc_info *) ctx; - struct wlc_txq_info *qi = wlc->pkt_queue; /* Check me */ - struct pktq *q = &qi->q; - int prio; - - prio = sdu->priority; - - if (!wlc_prec_enq(wlc, q, sdu, prec)) { - if (!EDCF_ENAB(wlc->pub) - || (wlc->pub->wlfeatureflag & WL_SWFL_FLOWCONTROL)) - wiphy_err(wlc->wiphy, "wl%d: wlc_txq_enq: txq overflow" - "\n", wlc->pub->unit); - - /* - * XXX we might hit this condtion in case - * packet flooding from mac80211 stack - */ - bcm_pkt_buf_free_skb(sdu); - } - - /* 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 -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 ieee80211_hdr *d11_header = (struct ieee80211_hdr *)(sdu->data); - - /* 802.11 standard requires management traffic to go at highest priority */ - prio = ieee80211_is_data(d11_header->frame_control) ? sdu->priority : - MAXPRIO; - fifo = prio2fifo[prio]; - 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); - return 0; -} - -void wlc_send_q(struct wlc_info *wlc) -{ - struct sk_buff *pkt[DOT11_MAXNUMFRAGS]; - int prec; - u16 prec_map; - int err = 0, i, count; - uint fifo; - struct wlc_txq_info *qi = wlc->pkt_queue; - struct pktq *q = &qi->q; - struct ieee80211_tx_info *tx_info; - - 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] = bcm_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 == -EBUSY) { - bcm_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, struct wlc_bsscfg *bsscfg, - d11txh_t *txh) -{ - u16 frameid; - - frameid = le16_to_cpu(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 -wlc_txfifo(struct wlc_info *wlc, uint fifo, struct sk_buff *p, bool commit, - s8 txpktpend) -{ - u16 frameid = INVALIDFID; - d11txh_t *txh; - - 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 = le16_to_cpu(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); - BCMMSG(wlc->wiphy, "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) { - wiphy_err(wlc->wiphy, "wlc_txfifo: fatal, toss frames !!!\n"); - } -} - -void -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(wlc, 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); - 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 -wlc_compute_ofdm_plcp(ratespec_t rspec, u32 length, u8 *plcp) -{ - u8 rate_signal; - u32 tmp = 0; - int rate = RSPEC2RATE(rspec); - - /* encode rate per 802.11a-1999 sec 17.3.4.1, with lsb transmitted first */ - rate_signal = rate_info[rate] & WLC_RATE_MASK; - 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(struct wlc_info *wlc, 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: - wiphy_err(wlc->wiphy, "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(struct wlc_info *wlc, ratespec_t rspec, - uint length, u8 *plcp) -{ - int rate = RSPEC2RATE(rspec); - - wlc_cck_plcp_set(wlc, 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 -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 -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; -} - -u16 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) { - wiphy_err(wlc->wiphy, "wlc_phytxctl1_calc: bw %d is " - "not supported yet, set to 20L\n", bw); - bw = PHY_TXC1_BW_20MHZ; - } - } - - 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) { - wiphy_err(wlc->wiphy, "wlc_phytxctl1_calc: wrong " - "legacy OFDM/CCK rate\n"); - phycfg = 0; - } - /* set the upper byte of phyctl1 */ - phyctl1 = - (bw | (phycfg << 8) | - (RSPEC_STF(rspec) << PHY_TXC1_MODE_SHIFT)); - } - return phyctl1; -} - -ratespec_t -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 -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 ieee80211_hdr *h; - d11txh_t *txh; - u8 *plcp, plcp_fallback[D11_PHY_HDR_LEN]; - int len, phylen, rts_phylen; - u16 mch, phyctl, xfts, mainrates; - u16 seq = 0, mcl = 0, status = 0, frameid = 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 ieee80211_rts *rts = NULL; - bool qos; - uint ac; - u32 rate_val[2]; - bool hwtkmic = false; - u16 mimo_ctlchbw = PHY_TXC1_BW_20MHZ; -#define ANTCFG_NONE 0xFF - u8 antcfg = ANTCFG_NONE; - u8 fbantcfg = ANTCFG_NONE; - 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; - - /* locate 802.11 MAC header */ - h = (struct ieee80211_hdr *)(p->data); - qos = ieee80211_is_data_qos(h->frame_control); - - /* compute length of frame in bytes for use in PLCP computations */ - len = bcm_pkttotlen(p); - phylen = len + 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); - - /* 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(txh, 0, D11_TXH_LEN); - - /* setup frameid */ - if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - /* non-AP STA should never use BCMC queue */ - if (queue == TX_BCMC_FIFO) { - wiphy_err(wlc->wiphy, "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 = le16_to_cpu(seq) & FRAGNUM_MASK; - seq |= (SCB_SEQNUM(scb, p->priority) << SEQNUM_SHIFT); - h->seq_ctrl = cpu_to_le16(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) || ieee80211_is_beacon(h->frame_control)) - mcl |= TXC_IGNOREPMQ; - - txrate[0] = tx_info->control.rates; - txrate[1] = txrate[0] + 1; - - /* 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]) { - 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 { - 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])) { - rspec[k] = WLC_RATE_1M; - } else { - if (!is_multicast_ether_addr(h->addr1)) { - /* 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; - - 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 { - 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]))) { - wiphy_err(wlc->wiphy, "wl%d: %s: IEEE80211_TX_" - "RC_MCS != IS_MCS(rspec)\n", - WLCWLUNIT(wlc), __func__); - } - - 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; - } - } - - /* 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; - } - } else { - for (k = 0; k < hw->max_rates; k++) { - /* Set ctrlchbw as 20Mhz */ - 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; - - /* (2) PROTECTION, may change rspec */ - if ((ieee80211_is_data(h->frame_control) || - ieee80211_is_mgmt(h->frame_control)) && - (phylen > wlc->RTSThresh) && !is_multicast_ether_addr(h->addr1)) - use_rts = true; - - /* (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); - memcpy(&txh->FragPLCPFallback, - plcp_fallback, 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 (!ieee80211_is_pspoll(h->frame_control) && - !is_multicast_ether_addr(h->addr1) && !use_rifs) { - durid = - wlc_compute_frame_dur(wlc, rspec[0], preamble_type[0], - next_frag_len); - h->duration_id = cpu_to_le16(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->duration_id = cpu_to_le16(durid); - } - - /* DUR field for fallback rate */ - if (ieee80211_is_pspoll(h->frame_control)) - txh->FragDurFallback = h->duration_id; - else if (is_multicast_ether_addr(h->addr1) || use_rifs) - txh->FragDurFallback = 0; - else { - durid = wlc_compute_frame_dur(wlc, rspec[1], - preamble_type[1], next_frag_len); - txh->FragDurFallback = cpu_to_le16(durid); - } - - /* (4) MAC-HDR: MacTxControlLow */ - if (frag == 0) - mcl |= TXC_STARTMSDU; - - if (!is_multicast_ether_addr(h->addr1)) - 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 = cpu_to_le16(mcl); - - /* MacTxControlHigh */ - mch = 0; - - /* Set fallback rate preamble type */ - if ((preamble_type[1] == WLC_SHORT_PREAMBLE) || - (preamble_type[1] == WLC_GF_PREAMBLE)) { - if (RSPEC2RATE(rspec[1]) != WLC_RATE_1M) - mch |= TXC_PREAMBLE_DATA_FB_SHORT; - } - - /* MacFrameControl */ - memcpy(&txh->MacFrameControl, &h->frame_control, sizeof(u16)); - txh->TxFesTimeNormal = cpu_to_le16(0); - - txh->TxFesTimeFallback = cpu_to_le16(0); - - /* TxFrameRA */ - memcpy(&txh->TxFrameRA, &h->addr1, ETH_ALEN); - - /* TxFrameID */ - txh->TxFrameID = cpu_to_le16(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 = cpu_to_le16(status); - - /* extra fields for ucode AMPDU aggregation, the new fields are added to - * the END of previous structure so that it's compatible in driver. - */ - txh->MaxNMpdus = cpu_to_le16(0); - txh->MaxABytes_MRT = cpu_to_le16(0); - txh->MaxABytes_FBR = cpu_to_le16(0); - txh->MinMBytes = cpu_to_le16(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 |= cpu_to_le16(TXC_SENDCTS); - } else { - txh->MacTxControlLow |= cpu_to_le16(TXC_SENDRTS); - txh->MacTxControlLow |= cpu_to_le16(TXC_LONGFRAME); - } - - /* RTS PLCP header */ - rts_plcp = txh->RTSPhyHeader; - if (use_cts) - rts_phylen = DOT11_CTS_LEN + FCS_LEN; - else - rts_phylen = DOT11_RTS_LEN + 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); - memcpy(&txh->RTSPLCPFallback, rts_plcp_fallback, - sizeof(txh->RTSPLCPFallback)); - - /* RTS frame fields... */ - rts = (struct ieee80211_rts *)&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->duration = cpu_to_le16(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 = cpu_to_le16(durid); - - if (use_cts) { - rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | - IEEE80211_STYPE_CTS); - - memcpy(&rts->ra, &h->addr2, ETH_ALEN); - } else { - rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | - IEEE80211_STYPE_RTS); - - memcpy(&rts->ra, &h->addr1, 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 ieee80211_rts)); - 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 = cpu_to_le16(mch); - - /* MainRates (both the rts and frag plcp rates have been calculated now) */ - txh->MainRates = cpu_to_le16(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 = cpu_to_le16(xfts); - - /* PhyTxControlWord */ - phyctl = FRAMETYPE(rspec[0], wlc->mimoft); - if ((preamble_type[0] == WLC_SHORT_PREAMBLE) || - (preamble_type[0] == WLC_GF_PREAMBLE)) { - if (RSPEC2RATE(rspec[0]) != WLC_RATE_1M) - phyctl |= PHY_TXC_SHORT_HDR; - } - - /* phytxant is properly bit shifted */ - phyctl |= wlc_stf_d11hdrs_phyctl_txant(wlc, rspec[0]); - txh->PhyTxControlWord = cpu_to_le16(phyctl); - - /* PhyTxControlWord_1 */ - if (WLC_PHY_11N_CAP(wlc->band)) { - u16 phyctl1 = 0; - - phyctl1 = wlc_phytxctl1_calc(wlc, rspec[0]); - txh->PhyTxControlWord_1 = cpu_to_le16(phyctl1); - phyctl1 = wlc_phytxctl1_calc(wlc, rspec[1]); - txh->PhyTxControlWord_1_Fbr = cpu_to_le16(phyctl1); - - if (use_rts || use_cts) { - phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[0]); - txh->PhyTxControlWord_1_Rts = cpu_to_le16(phyctl1); - phyctl1 = wlc_phytxctl1_calc(wlc, rts_rspec[1]); - txh->PhyTxControlWord_1_FbrRts = cpu_to_le16(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 = cpu_to_le16(mmodelen); - } - - if (IS_MCS(rspec[1]) && (preamble_type[1] == WLC_MM_PREAMBLE)) { - u16 mmodefbrlen = - wlc_calc_lsig_len(wlc, rspec[1], phylen); - txh->MModeFbrLen = cpu_to_le16(mmodefbrlen); - } - } - - ac = skb_get_queue_mapping(p); - if (SCB_WME(scb) && qos && wlc->edcf_txop[ac]) { - uint frag_dur, dur, dur_fallback; - - /* 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 += le16_to_cpu(rts->duration); - dur_fallback += - le16_to_cpu(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 = cpu_to_le16((u16) dur); - /* NEED to set fallback rate version of TxFesTimeNormal (hard) */ - txh->TxFesTimeFallback = - cpu_to_le16((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 - wiphy_err(wlc->wiphy, "wl%d: %s txop invalid " - "for rate %d\n", - wlc->pub->unit, fifo_names[queue], - RSPEC2RATE(rspec[0])); - - if (dur > wlc->edcf_txop[ac]) - wiphy_err(wlc->wiphy, "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) -{ - struct wlc_bsscfg *cfg = wlc->cfg; - - 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; - } -} - -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 -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; - int tx_rts, tx_frame_count, tx_rts_count; - uint totlen, supr_status; - bool lastframe; - struct ieee80211_hdr *h; - 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)) { - wiphy_err(wlc->wiphy, "%s: INTERMEDIATE but not AMPDU\n", - __func__); - return false; - } - - queue = txs->frameid & TXFID_QUEUE_MASK; - if (queue >= NFIFO) { - p = NULL; - goto fatal; - } - - p = GETNEXTTXP(wlc, queue); - if (WLC_WAR16165(wlc)) - wlc_war16165(wlc, false); - if (p == NULL) - goto fatal; - - txh = (d11txh_t *) (p->data); - mcl = le16_to_cpu(txh->MacTxControlLow); - - if (txs->phyerr) { - if (WL_ERROR_ON()) { - wiphy_err(wlc->wiphy, "phyerr 0x%x, rate 0x%x\n", - txs->phyerr, txh->MainRates); - wlc_print_txdesc(txh); - } - wlc_print_txstatus(txs); - } - - if (txs->frameid != cpu_to_le16(txh->TxFrameID)) - goto fatal; - tx_info = IEEE80211_SKB_CB(p); - h = (struct ieee80211_hdr *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN); - - if (tx_info->control.sta) - scb = (struct scb *)tx_info->control.sta->drv_priv; - - if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) { - 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) - BCMMSG(wlc->wiphy, - "%s: Pkt tx suppressed, possibly channel %d\n", - __func__, CHSPEC_CHANNEL(wlc->default_bss->chanspec)); - - tx_rts = cpu_to_le16(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 = !ieee80211_has_morefrags(h->frame_control); - - if (!lastframe) { - wiphy_err(wlc->wiphy, "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 = bcm_pkttotlen(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); - } else { - wiphy_err(wlc->wiphy, "%s: Not last frame => not calling " - "tx_status\n", __func__); - } - - return false; - - fatal: - if (p) - bcm_pkt_buf_free_skb(p); - - return true; - -} - -void -wlc_txfifo_complete(struct wlc_info *wlc, uint fifo, s8 txpktpend) -{ - TXPKTPENDDEC(wlc, fifo, txpktpend); - BCMMSG(wlc->wiphy, "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); - - 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... */ -} - -/* 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); -} - -/* - * recover 64bit TSF value from the 16bit TSF value in the rx header - * given the assumption that the TSF passed in header is within 65ms - * of the current tsf. - * - * 6 5 4 4 3 2 1 - * 3.......6.......8.......0.......2.......4.......6.......8......0 - * |<---------- tsf_h ----------->||<--- tsf_l -->||<-RxTSFTime ->| - * - * The RxTSFTime are the lowest 16 bits and provided by the ucode. The - * tsf_l is filled in by wlc_bmac_recv, which is done earlier in the - * receive call sequence after rx interrupt. Only the higher 16 bits - * are used. Finally, the tsf_h is read from the tsf register. - */ -static u64 wlc_recover_tsf64(struct wlc_info *wlc, struct wlc_d11rxhdr *rxh) -{ - u32 tsf_h, tsf_l; - u16 rx_tsf_0_15, rx_tsf_16_31; - - wlc_bmac_read_tsf(wlc->hw, &tsf_l, &tsf_h); - - rx_tsf_16_31 = (u16)(tsf_l >> 16); - rx_tsf_0_15 = rxh->rxhdr.RxTSFTime; - - /* - * a greater tsf time indicates the low 16 bits of - * tsf_l wrapped, so decrement the high 16 bits. - */ - if ((u16)tsf_l < rx_tsf_0_15) { - rx_tsf_16_31 -= 1; - if (rx_tsf_16_31 == 0xffff) - tsf_h -= 1; - } - - return ((u64)tsf_h << 32) | (((u32)rx_tsf_16_31 << 16) + rx_tsf_0_15); -} - -static void -prep_mac80211_status(struct wlc_info *wlc, d11rxhdr_t *rxh, struct sk_buff *p, - struct ieee80211_rx_status *rx_status) -{ - wlc_d11rxhdr_t *wlc_rxh = (wlc_d11rxhdr_t *) rxh; - int preamble; - int channel; - ratespec_t rspec; - unsigned char *plcp; - - /* fill in TSF and flag its presence */ - rx_status->mactime = wlc_recover_tsf64(wlc, wlc_rxh); - rx_status->flag |= RX_FLAG_MACTIME_MPDU; - - channel = WLC_CHAN_CHANNEL(rxh->RxChan); - - if (channel > 14) { - rx_status->band = IEEE80211_BAND_5GHZ; - rx_status->freq = ieee80211_ofdm_chan_to_freq( - WF_CHAN_FACTOR_5_G/2, channel); - - } else { - rx_status->band = IEEE80211_BAND_2GHZ; - rx_status->freq = ieee80211_dsss_chan_to_freq(channel); - } - - 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: - wiphy_err(wlc->wiphy, "%s: Unknown rate\n", __func__); - } - - /* Determine short preamble and rate_idx */ - preamble = 0; - if (IS_CCK(rspec)) { - if (rxh->PhyRxStatus_0 & PRXS0_SHORTH) - rx_status->flag |= RX_FLAG_SHORTPRE; - } else if (IS_OFDM(rspec)) { - rx_status->flag |= RX_FLAG_SHORTPRE; - } else { - wiphy_err(wlc->wiphy, "%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; - wiphy_err(wlc->wiphy, "%s: RX_FLAG_FAILED_PLCP_CRC\n", - __func__); - } - if (rxh->RxStatus1 & RXS_FCSERR) { - rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; - wiphy_err(wlc->wiphy, "%s: RX_FLAG_FAILED_FCS_CRC\n", - __func__); - } -} - -static void -wlc_recvctl(struct wlc_info *wlc, d11rxhdr_t *rxh, struct sk_buff *p) -{ - int len_mpdu; - struct ieee80211_rx_status rx_status; - struct ieee80211_hdr *hdr; - - 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 - FCS_LEN; - skb_pull(p, D11_PHY_HDR_LEN); - __skb_trim(p, len_mpdu); - - /* unmute transmit */ - if (wlc->hw->suspended_fifos) { - hdr = (struct ieee80211_hdr *)p->data; - if (ieee80211_is_beacon(hdr->frame_control)) - wlc_bmac_mute(wlc->hw, false, 0); - } - - memcpy(IEEE80211_SKB_RXCB(p), &rx_status, sizeof(rx_status)); - ieee80211_rx_irqsafe(wlc->pub->ieee_hw, p); - return; -} - -/* 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 wlc_recv(struct wlc_info *wlc, struct sk_buff *p) -{ - d11rxhdr_t *rxh; - struct ieee80211_hdr *h; - uint len; - bool is_amsdu; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - /* frame starts with rxhdr */ - rxh = (d11rxhdr_t *) (p->data); - - /* strip off rxhdr */ - skb_pull(p, wlc->hwrxoff); - - /* fixup rx header endianness */ - rxh->RxFrameSize = le16_to_cpu(rxh->RxFrameSize); - rxh->PhyRxStatus_0 = le16_to_cpu(rxh->PhyRxStatus_0); - rxh->PhyRxStatus_1 = le16_to_cpu(rxh->PhyRxStatus_1); - rxh->PhyRxStatus_2 = le16_to_cpu(rxh->PhyRxStatus_2); - rxh->PhyRxStatus_3 = le16_to_cpu(rxh->PhyRxStatus_3); - rxh->PhyRxStatus_4 = le16_to_cpu(rxh->PhyRxStatus_4); - rxh->PhyRxStatus_5 = le16_to_cpu(rxh->PhyRxStatus_5); - rxh->RxStatus1 = le16_to_cpu(rxh->RxStatus1); - rxh->RxStatus2 = le16_to_cpu(rxh->RxStatus2); - rxh->RxTSFTime = le16_to_cpu(rxh->RxTSFTime); - rxh->RxChan = le16_to_cpu(rxh->RxChan); - - /* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU subframes */ - if (rxh->RxStatus1 & RXS_PBPRES) { - if (p->len < 2) { - wiphy_err(wlc->wiphy, "wl%d: wlc_recv: rcvd runt of " - "len %d\n", wlc->pub->unit, p->len); - goto toss; - } - skb_pull(p, 2); - } - - h = (struct ieee80211_hdr *)(p->data + D11_PHY_HDR_LEN); - len = p->len; - - if (rxh->RxStatus1 & RXS_FCSERR) { - if (wlc->pub->mac80211_state & MAC80211_PROMISC_BCNS) { - wiphy_err(wlc->wiphy, "FCSERR while scanning******* -" - " tossing\n"); - goto toss; - } else { - wiphy_err(wlc->wiphy, "RCSERR!!!\n"); - goto toss; - } - } - - /* check received pkt has at least frame control field */ - if (len < D11_PHY_HDR_LEN + sizeof(h->frame_control)) { - 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 (ieee80211_is_data(h->frame_control) || - ieee80211_is_mgmt(h->frame_control)) { - if ((is_zero_ether_addr(h->addr2) || - is_multicast_ether_addr(h->addr2))) { - wiphy_err(wlc->wiphy, "wl%d: %s: dropping a " - "frame with invalid src mac address," - " a2: %pM\n", - wlc->pub->unit, __func__, h->addr2); - goto toss; - } - } - } - - /* due to sheer numbers, toss out probe reqs for now */ - if (ieee80211_is_probe_req(h->frame_control)) - goto toss; - - if (is_amsdu) - goto toss; - - wlc_recvctl(wlc, rxh, p); - return; - - toss: - bcm_pkt_buf_free_skb(p); -} - -/* 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 -wlc_calc_lsig_len(struct wlc_info *wlc, ratespec_t ratespec, uint mac_len) -{ - uint nsyms, len = 0, kNdps; - - BCMMSG(wlc->wiphy, "wl%d: 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); - - /* 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 -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) { - wiphy_err(wlc->wiphy, "wl%d: WAR: using rate of 1 mbps\n", - wlc->pub->unit); - rate = WLC_RATE_1M; - } - - BCMMSG(wlc->wiphy, "wl%d: 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); - - 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); - - BCMMSG(wlc->wiphy, "wl%d: 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); - 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) -{ - BCMMSG(wlc->wiphy, "wl%d: 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); - /* 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 + - FCS_LEN)); -} - -static uint -wlc_calc_ack_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type) -{ - uint dur = 0; - - BCMMSG(wlc->wiphy, "wl%d: 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); - /* ACK frame len == 14 == 2(fc) + 2(dur) + 6(ra) + 4(fcs) */ - dur = - wlc_calc_frame_time(wlc, rspec, preamble_type, - (DOT11_ACK_LEN + FCS_LEN)); - return dur; -} - -static uint -wlc_calc_cts_time(struct wlc_info *wlc, ratespec_t rspec, u8 preamble_type) -{ - BCMMSG(wlc->wiphy, "wl%d: 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] & WLC_RATE_MASK); - - if (rate > WLC_MAXRATE) { - wiphy_err(wlc->wiphy, "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]; - - 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] & WLC_RATE_MASK; - basic_phy_rate = rate_info[basic_rate] & WLC_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); - - 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] & WLC_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] & WLC_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) { - wiphy_err(wlc->wiphy, "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 { - 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); - - 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] & WLC_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); - } -} - -/* 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, u16 type, ratespec_t bcn_rspec, - struct wlc_bsscfg *cfg, u16 *buf, int *len) -{ - static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255}; - cck_phy_hdr_t *plcp; - struct ieee80211_mgmt *h; - int hdr_len, body_len; - - if (MBSS_BCN_ENAB(cfg) && type == IEEE80211_STYPE_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 == IEEE80211_STYPE_BEACON && !MBSS_BCN_ENAB(cfg)) { - /* fill in PLCP */ - wlc_compute_plcp(wlc, bcn_rspec, - (DOT11_MAC_HDR_LEN + body_len + 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 == IEEE80211_STYPE_BEACON) - h = (struct ieee80211_mgmt *)&plcp[0]; - else - h = (struct ieee80211_mgmt *)&plcp[1]; - - /* fill in 802.11 header */ - h->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 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 == IEEE80211_STYPE_BEACON) - memcpy(&h->da, ðer_bcast, ETH_ALEN); - memcpy(&h->sa, &cfg->cur_etheraddr, ETH_ALEN); - memcpy(&h->bssid, &cfg->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, struct wlc_bsscfg *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; - } - - /* Optimize: Some of if/else could be combined */ - if (!MBSS_BCN_ENAB(cfg) && 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; - - /* Check if both templates are in use, if so sched. an interrupt - * that will call back into this routine - */ - if ((R_REG(®s->maccommand) & both_valid) == both_valid) { - /* clear any previous status */ - W_REG(®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(®s->maccommand) & both_valid) == both_valid) { - wlc->defmacintmask |= MI_BCNTPL; - return; - } - - wlc->bcn_rspec = - wlc_lowest_basic_rspec(wlc, &cfg->current_bss->rateset); - /* update the template and ucode shm */ - wlc_bcn_prb_template(wlc, IEEE80211_STYPE_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; - struct wlc_bsscfg *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, struct wlc_bsscfg *cfg) -{ - u8 *ssidptr = cfg->SSID; - u16 base = M_SSID; - u8 ssidbuf[IEEE80211_MAX_SSID_LEN]; - - /* padding the ssid with zero and copy it into shm */ - memset(ssidbuf, 0, IEEE80211_MAX_SSID_LEN); - memcpy(ssidbuf, ssidptr, cfg->SSID_len); - - wlc_copyto_shm(wlc, base, ssidbuf, IEEE80211_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; - struct wlc_bsscfg *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, struct wlc_bsscfg *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, IEEE80211_STYPE_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 + 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 */ - /* error: 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) -{ - uint fifo; - d11txh_t *txh; - struct ieee80211_hdr *h; - struct scb *scb; - - txh = (d11txh_t *) (pdu->data); - h = (struct ieee80211_hdr *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN); - - /* get the pkt queue info. This was put at wlc_sendctl or wlc_send for PDU */ - fifo = le16_to_cpu(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 -EBUSY; - } - return 0; -} - -/* init tx reported rate mechanism */ -void wlc_reprate_init(struct wlc_info *wlc) -{ - int i; - struct wlc_bsscfg *bsscfg; - - FOREACH_BSS(wlc, i, bsscfg) { - wlc_bsscfg_reprate_init(bsscfg); - } -} - -/* per bsscfg init tx reported rate mechanism */ -void wlc_bsscfg_reprate_init(struct wlc_bsscfg *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 -EOVERFLOW; - - 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 0; -} - -void wlc_default_rateset(struct wlc_info *wlc, wlc_rateset_t *rs) -{ - wlc_rateset_default(rs, NULL, wlc->band->phytype, wlc->band->bandtype, - false, WLC_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); - 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, WLC_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; -} - -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) { - wiphy_err(wlc->wiphy, "wl%d: %s: Invalid stf\n", - WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - 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))) { - wiphy_err(wlc->wiphy, "wl%d: %s: Invalid mcs " - "32\n", WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - 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) { - BCMMSG(wlc->wiphy, "wl%d: enabling " - "SDM mode for mcs %d\n", - WLCWLUNIT(wlc), 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))) { - wiphy_err(wlc->wiphy, "wl%d: %s: Invalid STBC" - "\n", WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - goto done; - } - } - } else if (IS_OFDM(rate)) { - if ((stf != PHY_TXC1_MODE_CDD) && (stf != PHY_TXC1_MODE_SISO)) { - wiphy_err(wlc->wiphy, "wl%d: %s: Invalid OFDM\n", - WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - goto done; - } - } else if (IS_CCK(rate)) { - if ((cur_band->bandtype != WLC_BAND_2G) - || (stf != PHY_TXC1_MODE_SISO)) { - wiphy_err(wlc->wiphy, "wl%d: %s: Invalid CCK\n", - WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - goto done; - } - } else { - wiphy_err(wlc->wiphy, "wl%d: %s: Unknown rate type\n", - WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - goto done; - } - /* make sure multiple antennae are available for non-siso rates */ - if ((stf != PHY_TXC1_MODE_SISO) && (wlc->stf->txstreams == 1)) { - wiphy_err(wlc->wiphy, "wl%d: %s: SISO antenna but !SISO " - "request\n", WLCWLUNIT(wlc), __func__); - bcmerror = -EINVAL; - 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: - 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) { - wiphy_err(wlc->wiphy, "wl%d: duty cycle value off limit\n", - wlc->pub->unit); - return -EINVAL; - } - 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 0; -} - -/* 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); -} - -/* 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 */ - if (len <= 0 || (offset & 1) || (len & 1)) - return; - - wlc_bmac_copyto_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_mhf(struct wlc_info *wlc, u8 idx, u16 mask, u16 val, int bands) -{ - wlc_bmac_mhf(wlc->hw, idx, mask, val, 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 u8 *addr) -{ - wlc_bmac_set_addrmatch(wlc->hw, match_reg_offset, addr); - if (match_reg_offset == RCM_BSSID_OFFSET) - memcpy(wlc->cfg->BSSID, addr, ETH_ALEN); -} - -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); -} - -/* 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) -{ -} - -/* check for the particular priority flow control bit being set */ -bool -wlc_txflowcontrol_prio_isset(struct wlc_info *wlc, struct wlc_txq_info *q, - int prio) -{ - uint prio_mask; - - if (prio == ALLPRIO) { - prio_mask = TXQ_STOP_FOR_PRIOFC_MASK; - } else { - prio_mask = NBITVAL(prio); - } - - return (q->stopped & prio_mask) == prio_mask; -} - -/* propagate the flow control to all interfaces using the given tx queue */ -void wlc_txflowcontrol(struct wlc_info *wlc, struct wlc_txq_info *qi, - bool on, int prio) -{ - uint prio_bits; - uint cur_bits; - - BCMMSG(wlc->wiphy, "flow control kicks in\n"); - - if (prio == ALLPRIO) { - prio_bits = TXQ_STOP_FOR_PRIOFC_MASK; - } else { - 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, struct wlc_txq_info *qi, - bool on, uint override) -{ - uint prev_override; - - 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) -{ - struct wlc_txq_info *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, struct wlc_txq_info *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 struct wlc_txq_info *wlc_txq_alloc(struct wlc_info *wlc) -{ - struct wlc_txq_info *qi, *p; - - qi = kzalloc(sizeof(struct wlc_txq_info), GFP_ATOMIC); - if (qi != 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 - */ - bcm_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 wlc_txq_info *qi) -{ - struct wlc_txq_info *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; - if (p != NULL) - p->next = p->next->next; - } - - kfree(qi); -} - -/* - * Flag 'scan in progress' to withhold 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); -} - -void wlc_associate_upd(struct wlc_info *wlc, bool state) -{ - wlc->pub->associated = state; - wlc->cfg->associated = state; -} - -/* - * When a remote STA/AP is removed by Mac80211, or when it can no longer accept - * AMPDU traffic, packets pending in hardware have to be invalidated so that - * when later on hardware releases them, they can be handled appropriately. - */ -void wlc_inval_dma_pkts(struct wlc_hw_info *hw, - struct ieee80211_sta *sta, - void (*dma_callback_fn)) -{ - struct hnddma_pub *dmah; - int i; - for (i = 0; i < NFIFO; i++) { - dmah = hw->di[i]; - if (dmah != NULL) - dma_walk_packets(dmah, dma_callback_fn, sta); - } -} - -int wlc_get_curband(struct wlc_info *wlc) -{ - return wlc->band->bandunit; -} - -void wlc_wait_for_tx_completion(struct wlc_info *wlc, bool drop) -{ - /* flush packet queue when requested */ - if (drop) - bcm_pktq_flush(&wlc->pkt_queue->q, false, NULL, NULL); - - /* wait for queue and DMA fifos to run dry */ - while (!pktq_empty(&wlc->pkt_queue->q) || - TXPKTPENDTOT(wlc) > 0) { - wl_msleep(wlc->wl, 1); - } -} |