/* * 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. */ #define __UNDEF_NO_VERSION__ #include #include #include #include #include #include #include #include #include "nicpci.h" #include "phy/phy_int.h" #include "d11.h" #include "channel.h" #include "scb.h" #include "pub.h" #include "ucode_loader.h" #include "mac80211_if.h" #include "main.h" #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */ /* Flags we support */ #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \ FIF_ALLMULTI | \ FIF_FCSFAIL | \ FIF_PLCPFAIL | \ FIF_CONTROL | \ FIF_OTHER_BSS | \ FIF_BCN_PRBRESP_PROMISC) #define CHAN2GHZ(channel, freqency, chflags) { \ .band = IEEE80211_BAND_2GHZ, \ .center_freq = (freqency), \ .hw_value = (channel), \ .flags = chflags, \ .max_antenna_gain = 0, \ .max_power = 19, \ } #define CHAN5GHZ(channel, chflags) { \ .band = IEEE80211_BAND_5GHZ, \ .center_freq = 5000 + 5*(channel), \ .hw_value = (channel), \ .flags = chflags, \ .max_antenna_gain = 0, \ .max_power = 21, \ } #define RATE(rate100m, _flags) { \ .bitrate = (rate100m), \ .flags = (_flags), \ .hw_value = (rate100m / 5), \ } struct firmware_hdr { __le32 offset; __le32 len; __le32 idx; }; static const char * const brcms_firmwares[MAX_FW_IMAGES] = { "brcm/bcm43xx", NULL }; static int n_adapters_found; MODULE_AUTHOR("Broadcom Corporation"); MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver."); MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards"); MODULE_LICENSE("Dual BSD/GPL"); /* recognized PCI IDs */ static DEFINE_PCI_DEVICE_TABLE(brcms_pci_id_table) = { { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) }, /* 43225 2G */ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) }, /* 43224 DUAL */ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) }, /* 4313 DUAL */ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) }, /* 43224 Ven */ {0} }; MODULE_DEVICE_TABLE(pci, brcms_pci_id_table); #ifdef BCMDBG static int msglevel = 0xdeadbeef; module_param(msglevel, int, 0); #endif /* BCMDBG */ static struct ieee80211_channel brcms_2ghz_chantable[] = { CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS), CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS), CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS), CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS), CHAN2GHZ(5, 2432, 0), CHAN2GHZ(6, 2437, 0), CHAN2GHZ(7, 2442, 0), CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS), CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS), CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS), CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS), CHAN2GHZ(12, 2467, IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_NO_HT40PLUS), CHAN2GHZ(13, 2472, IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_NO_HT40PLUS), CHAN2GHZ(14, 2484, IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) }; static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = { /* UNII-1 */ CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS), /* UNII-2 */ CHAN5GHZ(52, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(56, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(60, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(64, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), /* MID */ CHAN5GHZ(100, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(104, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(108, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(112, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(116, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(120, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(124, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(128, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(132, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(136, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(140, IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS), /* UNII-3 */ CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS), CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS), CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) }; /* * The rate table is used for both 2.4G and 5G rates. The * latter being a subset as it does not support CCK rates. */ static struct ieee80211_rate legacy_ratetable[] = { RATE(10, 0), RATE(20, IEEE80211_RATE_SHORT_PREAMBLE), RATE(55, IEEE80211_RATE_SHORT_PREAMBLE), RATE(110, IEEE80211_RATE_SHORT_PREAMBLE), RATE(60, 0), RATE(90, 0), RATE(120, 0), RATE(180, 0), RATE(240, 0), RATE(360, 0), RATE(480, 0), RATE(540, 0), }; static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = { .band = IEEE80211_BAND_2GHZ, .channels = brcms_2ghz_chantable, .n_channels = ARRAY_SIZE(brcms_2ghz_chantable), .bitrates = legacy_ratetable, .n_bitrates = ARRAY_SIZE(legacy_ratetable), .ht_cap = { /* from include/linux/ieee80211.h */ .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40, .ht_supported = true, .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, .ampdu_density = AMPDU_DEF_MPDU_DENSITY, .mcs = { /* placeholders for now */ .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, .rx_highest = cpu_to_le16(500), .tx_params = IEEE80211_HT_MCS_TX_DEFINED} } }; static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = { .band = IEEE80211_BAND_5GHZ, .channels = brcms_5ghz_nphy_chantable, .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable), .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET, .n_bitrates = ARRAY_SIZE(legacy_ratetable) - BRCMS_LEGACY_5G_RATE_OFFSET, .ht_cap = { .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40, .ht_supported = true, .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, .ampdu_density = AMPDU_DEF_MPDU_DENSITY, .mcs = { /* placeholders for now */ .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, .rx_highest = cpu_to_le16(500), .tx_params = IEEE80211_HT_MCS_TX_DEFINED} } }; /* flags the given rate in rateset as requested */ static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br) { u32 i; for (i = 0; i < rs->count; i++) { if (rate != (rs->rates[i] & 0x7f)) continue; if (is_br) rs->rates[i] |= BRCMS_RATE_FLAG; else rs->rates[i] &= BRCMS_RATE_MASK; return; } } static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct brcms_info *wl = hw->priv; spin_lock_bh(&wl->lock); if (!wl->pub->up) { wiphy_err(wl->wiphy, "ops->tx called while down\n"); kfree_skb(skb); goto done; } brcms_c_sendpkt_mac80211(wl->wlc, skb, hw); done: spin_unlock_bh(&wl->lock); } static int brcms_ops_start(struct ieee80211_hw *hw) { struct brcms_info *wl = hw->priv; bool blocked; int err; ieee80211_wake_queues(hw); spin_lock_bh(&wl->lock); blocked = brcms_rfkill_set_hw_state(wl); spin_unlock_bh(&wl->lock); if (!blocked) wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); spin_lock_bh(&wl->lock); /* avoid acknowledging frames before a non-monitor device is added */ wl->mute_tx = true; if (!wl->pub->up) err = brcms_up(wl); else err = -ENODEV; spin_unlock_bh(&wl->lock); if (err != 0) wiphy_err(hw->wiphy, "%s: brcms_up() returned %d\n", __func__, err); return err; } static void brcms_ops_stop(struct ieee80211_hw *hw) { struct brcms_info *wl = hw->priv; int status; ieee80211_stop_queues(hw); if (wl->wlc == NULL) return; spin_lock_bh(&wl->lock); status = brcms_c_chipmatch(wl->wlc->hw->vendorid, wl->wlc->hw->deviceid); spin_unlock_bh(&wl->lock); if (!status) { wiphy_err(wl->wiphy, "wl: brcms_ops_stop: chipmatch failed\n"); return; } /* put driver in down state */ spin_lock_bh(&wl->lock); brcms_down(wl); spin_unlock_bh(&wl->lock); } static int brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct brcms_info *wl = hw->priv; /* Just STA for now */ if (vif->type != NL80211_IFTYPE_STATION) { wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only" " STA for now\n", __func__, vif->type); return -EOPNOTSUPP; } wl->mute_tx = false; brcms_c_mute(wl->wlc, false); return 0; } static void brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { } static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed) { struct ieee80211_conf *conf = &hw->conf; struct brcms_info *wl = hw->priv; int err = 0; int new_int; struct wiphy *wiphy = hw->wiphy; spin_lock_bh(&wl->lock); if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { brcms_c_set_beacon_listen_interval(wl->wlc, conf->listen_interval); } if (changed & IEEE80211_CONF_CHANGE_MONITOR) wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n", __func__, conf->flags & IEEE80211_CONF_MONITOR ? "true" : "false"); if (changed & IEEE80211_CONF_CHANGE_PS) wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n", __func__, conf->flags & IEEE80211_CONF_PS ? "true" : "false"); if (changed & IEEE80211_CONF_CHANGE_POWER) { err = brcms_c_set_tx_power(wl->wlc, conf->power_level); if (err < 0) { wiphy_err(wiphy, "%s: Error setting power_level\n", __func__); goto config_out; } new_int = brcms_c_get_tx_power(wl->wlc); if (new_int != conf->power_level) wiphy_err(wiphy, "%s: Power level req != actual, %d %d" "\n", __func__, conf->power_level, new_int); } if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { if (conf->channel_type == NL80211_CHAN_HT20 || conf->channel_type == NL80211_CHAN_NO_HT) err = brcms_c_set_channel(wl->wlc, conf->channel->hw_value); else err = -ENOTSUPP; } if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) err = brcms_c_set_rate_limit(wl->wlc, conf->short_frame_max_tx_count, conf->long_frame_max_tx_count); config_out: spin_unlock_bh(&wl->lock); return err; } static void brcms_ops_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *info, u32 changed) { struct brcms_info *wl = hw->priv; struct wiphy *wiphy = hw->wiphy; if (changed & BSS_CHANGED_ASSOC) { /* association status changed (associated/disassociated) * also implies a change in the AID. */ wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME, __func__, info->assoc ? "" : "dis"); spin_lock_bh(&wl->lock); brcms_c_associate_upd(wl->wlc, info->assoc); spin_unlock_bh(&wl->lock); } if (changed & BSS_CHANGED_ERP_SLOT) { s8 val; /* slot timing changed */ if (info->use_short_slot) val = 1; else val = 0; spin_lock_bh(&wl->lock); brcms_c_set_shortslot_override(wl->wlc, val); spin_unlock_bh(&wl->lock); } if (changed & BSS_CHANGED_HT) { /* 802.11n parameters changed */ u16 mode = info->ht_operation_mode; spin_lock_bh(&wl->lock); brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG, mode & IEEE80211_HT_OP_MODE_PROTECTION); brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF, mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS, mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT); spin_unlock_bh(&wl->lock); } if (changed & BSS_CHANGED_BASIC_RATES) { struct ieee80211_supported_band *bi; u32 br_mask, i; u16 rate; struct brcm_rateset rs; int error; /* retrieve the current rates */ spin_lock_bh(&wl->lock); brcms_c_get_current_rateset(wl->wlc, &rs); spin_unlock_bh(&wl->lock); br_mask = info->basic_rates; bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)]; for (i = 0; i < bi->n_bitrates; i++) { /* convert to internal rate value */ rate = (bi->bitrates[i].bitrate << 1) / 10; /* set/clear basic rate flag */ brcms_set_basic_rate(&rs, rate, br_mask & 1); br_mask >>= 1; } /* update the rate set */ spin_lock_bh(&wl->lock); error = brcms_c_set_rateset(wl->wlc, &rs); spin_unlock_bh(&wl->lock); if (error) wiphy_err(wiphy, "changing basic rates failed: %d\n", error); } if (changed & BSS_CHANGED_BEACON_INT) { /* Beacon interval changed */ spin_lock_bh(&wl->lock); brcms_c_set_beacon_period(wl->wlc, info->beacon_int); spin_unlock_bh(&wl->lock); } if (changed & BSS_CHANGED_BSSID) { /* BSSID changed, for whatever reason (IBSS and managed mode) */ spin_lock_bh(&wl->lock); brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid); spin_unlock_bh(&wl->lock); } if (changed & BSS_CHANGED_BEACON) /* Beacon data changed, retrieve new beacon (beaconing modes) */ wiphy_err(wiphy, "%s: beacon changed\n", __func__); if (changed & BSS_CHANGED_BEACON_ENABLED) { /* Beaconing should be enabled/disabled (beaconing modes) */ wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__, info->enable_beacon ? "true" : "false"); } if (changed & BSS_CHANGED_CQM) { /* Connection quality monitor config changed */ wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d " " (implement)\n", __func__, info->cqm_rssi_thold, info->cqm_rssi_hyst); } if (changed & BSS_CHANGED_IBSS) { /* IBSS join status changed */ wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__, info->ibss_joined ? "true" : "false"); } if (changed & BSS_CHANGED_ARP_FILTER) { /* Hardware ARP filter address list or state changed */ wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d" " (implement)\n", __func__, info->arp_filter_enabled ? "true" : "false", info->arp_addr_cnt); } if (changed & BSS_CHANGED_QOS) { /* * QoS for this association was enabled/disabled. * Note that it is only ever disabled for station mode. */ wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__, info->qos ? "true" : "false"); } return; } static void brcms_ops_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, u64 multicast) { struct brcms_info *wl = hw->priv; struct wiphy *wiphy = hw->wiphy; changed_flags &= MAC_FILTERS; *total_flags &= MAC_FILTERS; if (changed_flags & FIF_PROMISC_IN_BSS) wiphy_err(wiphy, "FIF_PROMISC_IN_BSS\n"); if (changed_flags & FIF_ALLMULTI) wiphy_err(wiphy, "FIF_ALLMULTI\n"); if (changed_flags & FIF_FCSFAIL) wiphy_err(wiphy, "FIF_FCSFAIL\n"); if (changed_flags & FIF_PLCPFAIL) wiphy_err(wiphy, "FIF_PLCPFAIL\n"); if (changed_flags & FIF_CONTROL) wiphy_err(wiphy, "FIF_CONTROL\n"); if (changed_flags & FIF_OTHER_BSS) wiphy_err(wiphy, "FIF_OTHER_BSS\n"); if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { spin_lock_bh(&wl->lock); if (*total_flags & FIF_BCN_PRBRESP_PROMISC) { wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS; brcms_c_mac_bcn_promisc_change(wl->wlc, 1); } else { brcms_c_mac_bcn_promisc_change(wl->wlc, 0); wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS; } spin_unlock_bh(&wl->lock); } return; } static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw) { struct brcms_info *wl = hw->priv; spin_lock_bh(&wl->lock); brcms_c_scan_start(wl->wlc); spin_unlock_bh(&wl->lock); return; } static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw) { struct brcms_info *wl = hw->priv; spin_lock_bh(&wl->lock); brcms_c_scan_stop(wl->wlc); spin_unlock_bh(&wl->lock); return; } static int brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) { struct brcms_info *wl = hw->priv; spin_lock_bh(&wl->lock); brcms_c_wme_setparams(wl->wlc, queue, params, true); spin_unlock_bh(&wl->lock); return 0; } static int brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct brcms_info *wl = hw->priv; struct scb *scb = &wl->wlc->pri_scb; brcms_c_init_scb(scb); wl->pub->global_ampdu = &(scb->scb_ampdu); wl->pub->global_ampdu->scb = scb; wl->pub->global_ampdu->max_pdu = 16; /* * minstrel_ht initiates addBA on our behalf by calling * ieee80211_start_tx_ba_session() */ return 0; } static int brcms_ops_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size) { struct brcms_info *wl = hw->priv; struct scb *scb = &wl->wlc->pri_scb; int status; if (WARN_ON(scb->magic != SCB_MAGIC)) return -EIDRM; switch (action) { case IEEE80211_AMPDU_RX_START: break; case IEEE80211_AMPDU_RX_STOP: break; case IEEE80211_AMPDU_TX_START: spin_lock_bh(&wl->lock); status = brcms_c_aggregatable(wl->wlc, tid); spin_unlock_bh(&wl->lock); if (!status) { wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n", tid); return -EINVAL; } ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); break; case IEEE80211_AMPDU_TX_STOP: spin_lock_bh(&wl->lock); brcms_c_ampdu_flush(wl->wlc, sta, tid); spin_unlock_bh(&wl->lock); ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); break; case IEEE80211_AMPDU_TX_OPERATIONAL: /* * BA window size from ADDBA response ('buf_size') defines how * many outstanding MPDUs are allowed for the BA stream by * recipient and traffic class. 'ampdu_factor' gives maximum * AMPDU size. */ spin_lock_bh(&wl->lock); brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size, (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + sta->ht_cap.ampdu_factor)) - 1); spin_unlock_bh(&wl->lock); /* Power save wakeup */ break; default: wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n", __func__); } return 0; } static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw) { struct brcms_info *wl = hw->priv; bool blocked; spin_lock_bh(&wl->lock); blocked = brcms_c_check_radio_disabled(wl->wlc); spin_unlock_bh(&wl->lock); wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); } static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop) { struct brcms_info *wl = hw->priv; no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false"); /* wait for packet queue and dma fifos to run empty */ spin_lock_bh(&wl->lock); brcms_c_wait_for_tx_completion(wl->wlc, drop); spin_unlock_bh(&wl->lock); } static const struct ieee80211_ops brcms_ops = { .tx = brcms_ops_tx, .start = brcms_ops_start, .stop = brcms_ops_stop, .add_interface = brcms_ops_add_interface, .remove_interface = brcms_ops_remove_interface, .config = brcms_ops_config, .bss_info_changed = brcms_ops_bss_info_changed, .configure_filter = brcms_ops_configure_filter, .sw_scan_start = brcms_ops_sw_scan_start, .sw_scan_complete = brcms_ops_sw_scan_complete, .conf_tx = brcms_ops_conf_tx, .sta_add = brcms_ops_sta_add, .ampdu_action = brcms_ops_ampdu_action, .rfkill_poll = brcms_ops_rfkill_poll, .flush = brcms_ops_flush, }; /* * is called in brcms_pci_probe() context, therefore no locking required. */ static int brcms_set_hint(struct brcms_info *wl, char *abbrev) { return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev); } void brcms_dpc(unsigned long data) { struct brcms_info *wl; wl = (struct brcms_info *) data; spin_lock_bh(&wl->lock); /* call the common second level interrupt handler */ if (wl->pub->up) { if (wl->resched) { unsigned long flags; spin_lock_irqsave(&wl->isr_lock, flags); brcms_c_intrsupd(wl->wlc); spin_unlock_irqrestore(&wl->isr_lock, flags); } wl->resched = brcms_c_dpc(wl->wlc, true); } /* brcms_c_dpc() may bring the driver down */ if (!wl->pub->up) goto done; /* re-schedule dpc */ if (wl->resched) tasklet_schedule(&wl->tasklet); else /* re-enable interrupts */ brcms_intrson(wl); done: spin_unlock_bh(&wl->lock); } /* * Precondition: Since this function is called in brcms_pci_probe() context, * no locking is required. */ static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev) { int status; struct device *device = &pdev->dev; char fw_name[100]; int i; memset(&wl->fw, 0, sizeof(struct brcms_firmware)); for (i = 0; i < MAX_FW_IMAGES; i++) { if (brcms_firmwares[i] == NULL) break; sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i], UCODE_LOADER_API_VER); status = request_firmware(&wl->fw.fw_bin[i], fw_name, device); if (status) { wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", KBUILD_MODNAME, fw_name); return status; } sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i], UCODE_LOADER_API_VER); status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device); if (status) { wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", KBUILD_MODNAME, fw_name); return status; } wl->fw.hdr_num_entries[i] = wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr)); } wl->fw.fw_cnt = i; return brcms_ucode_data_init(wl, &wl->ucode); } /* * Precondition: Since this function is called in brcms_pci_probe() context, * no locking is required. */ static void brcms_release_fw(struct brcms_info *wl) { int i; for (i = 0; i < MAX_FW_IMAGES; i++) { release_firmware(wl->fw.fw_bin[i]); release_firmware(wl->fw.fw_hdr[i]); } } /** * This function frees the WL per-device resources. * * This function frees resources owned by the WL device pointed to * by the wl parameter. * * precondition: can both be called locked and unlocked * */ static void brcms_free(struct brcms_info *wl) { struct brcms_timer *t, *next; /* free ucode data */ if (wl->fw.fw_cnt) brcms_ucode_data_free(&wl->ucode); if (wl->irq) free_irq(wl->irq, wl); /* kill dpc */ tasklet_kill(&wl->tasklet); if (wl->pub) brcms_c_module_unregister(wl->pub, "linux", wl); /* free common resources */ if (wl->wlc) { brcms_c_detach(wl->wlc); wl->wlc = NULL; wl->pub = NULL; } /* virtual interface deletion is deferred so we cannot spinwait */ /* wait for all pending callbacks to complete */ while (atomic_read(&wl->callbacks) > 0) schedule(); /* free timers */ for (t = wl->timers; t; t = next) { next = t->next; #ifdef BCMDBG kfree(t->name); #endif kfree(t); } /* * unregister_netdev() calls get_stats() which may read chip * registers so we cannot unmap the chip registers until * after calling unregister_netdev() . */ if (wl->regsva) iounmap(wl->regsva); wl->regsva = NULL; } /* * called from both kernel as from this kernel module (error flow on attach) * precondition: perimeter lock is not acquired. */ static void brcms_remove(struct pci_dev *pdev) { struct ieee80211_hw *hw = pci_get_drvdata(pdev); struct brcms_info *wl = hw->priv; if (wl->wlc) { wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false); wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); ieee80211_unregister_hw(hw); } pci_disable_device(pdev); brcms_free(wl); pci_set_drvdata(pdev, NULL); ieee80211_free_hw(hw); } static irqreturn_t brcms_isr(int irq, void *dev_id) { struct brcms_info *wl; bool ours, wantdpc; wl = (struct brcms_info *) dev_id; spin_lock(&wl->isr_lock); /* call common first level interrupt handler */ ours = brcms_c_isr(wl->wlc, &wantdpc); if (ours) { /* if more to do... */ if (wantdpc) { /* ...and call the second level interrupt handler */ /* schedule dpc */ tasklet_schedule(&wl->tasklet); } } spin_unlock(&wl->isr_lock); return IRQ_RETVAL(ours); } /* * is called in brcms_pci_probe() context, therefore no locking required. */ static int ieee_hw_rate_init(struct ieee80211_hw *hw) { struct brcms_info *wl = hw->priv; struct brcms_c_info *wlc = wl->wlc; struct ieee80211_supported_band *band; int has_5g = 0; u16 phy_type; hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; phy_type = brcms_c_get_phy_type(wl->wlc, 0); if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { band = &wlc->bandstate[BAND_2G_INDEX]->band; *band = brcms_band_2GHz_nphy_template; if (phy_type == PHY_TYPE_LCN) { /* Single stream */ band->ht_cap.mcs.rx_mask[1] = 0; band->ht_cap.mcs.rx_highest = cpu_to_le16(72); } hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band; } else { return -EPERM; } /* Assume all bands use the same phy. True for 11n devices. */ if (wl->pub->_nbands > 1) { has_5g++; if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { band = &wlc->bandstate[BAND_5G_INDEX]->band; *band = brcms_band_5GHz_nphy_template; hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band; } else { return -EPERM; } } return 0; } /* * is called in brcms_pci_probe() context, therefore no locking required. */ static int ieee_hw_init(struct ieee80211_hw *hw) { hw->flags = IEEE80211_HW_SIGNAL_DBM /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */ | IEEE80211_HW_REPORTS_TX_ACK_STATUS | IEEE80211_HW_AMPDU_AGGREGATION; hw->extra_tx_headroom = brcms_c_get_header_len(); hw->queues = N_TX_QUEUES; hw->max_rates = 2; /* Primary rate and 1 fallback rate */ /* channel change time is dependent on chip and band */ hw->channel_change_time = 7 * 1000; hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); hw->rate_control_algorithm = "minstrel_ht"; hw->sta_data_size = 0; return ieee_hw_rate_init(hw); } /** * attach to the WL device. * * Attach to the WL device identified by vendor and device parameters. * regs is a host accessible memory address pointing to WL device registers. * * brcms_attach is not defined as static because in the case where no bus * is defined, wl_attach will never be called, and thus, gcc will issue * a warning that this function is defined but not used if we declare * it as static. * * * is called in brcms_pci_probe() context, therefore no locking required. */ static struct brcms_info *brcms_attach(u16 vendor, u16 device, resource_size_t regs, struct pci_dev *btparam, uint irq) { struct brcms_info *wl = NULL; int unit, err; struct ieee80211_hw *hw; u8 perm[ETH_ALEN]; unit = n_adapters_found; err = 0; if (unit < 0) return NULL; /* allocate private info */ hw = pci_get_drvdata(btparam); /* btparam == pdev */ if (hw != NULL) wl = hw->priv; if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL)) return NULL; wl->wiphy = hw->wiphy; atomic_set(&wl->callbacks, 0); /* setup the bottom half handler */ tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl); wl->regsva = ioremap_nocache(regs, PCI_BAR0_WINSZ); if (wl->regsva == NULL) { wiphy_err(wl->wiphy, "wl%d: ioremap() failed\n", unit); goto fail; } spin_lock_init(&wl->lock); spin_lock_init(&wl->isr_lock); /* prepare ucode */ if (brcms_request_fw(wl, btparam) < 0) { wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in " "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm"); brcms_release_fw(wl); brcms_remove(btparam); return NULL; } /* common load-time initialization */ wl->wlc = brcms_c_attach(wl, vendor, device, unit, false, wl->regsva, btparam, &err); brcms_release_fw(wl); if (!wl->wlc) { wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n", KBUILD_MODNAME, err); goto fail; } wl->pub = brcms_c_pub(wl->wlc); wl->pub->ieee_hw = hw; /* register our interrupt handler */ if (request_irq(irq, brcms_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) { wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit); goto fail; } wl->irq = irq; /* register module */ brcms_c_module_register(wl->pub, "linux", wl, NULL); if (ieee_hw_init(hw)) { wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit, __func__); goto fail; } memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN); if (WARN_ON(!is_valid_ether_addr(perm))) goto fail; SET_IEEE80211_PERM_ADDR(hw, perm); err = ieee80211_register_hw(hw); if (err) wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status" "%d\n", __func__, err); if (wl->pub->srom_ccode[0]) err = brcms_set_hint(wl, wl->pub->srom_ccode); else err = brcms_set_hint(wl, "US"); if (err) wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n", __func__, err); n_adapters_found++; return wl; fail: brcms_free(wl); return NULL; } /** * determines if a device is a WL device, and if so, attaches it. * * This function determines if a device pointed to by pdev is a WL device, * and if so, performs a brcms_attach() on it. * * Perimeter lock is initialized in the course of this function. */ static int __devinit brcms_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { int rc; struct brcms_info *wl; struct ieee80211_hw *hw; u32 val; dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), pdev->irq); if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) || ((pdev->device != 0x0576) && ((pdev->device & 0xff00) != 0x4300) && ((pdev->device & 0xff00) != 0x4700) && ((pdev->device < 43000) || (pdev->device > 43999)))) return -ENODEV; rc = pci_enable_device(pdev); if (rc) { pr_err("%s: Cannot enable device %d-%d_%d\n", __func__, pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); return -ENODEV; } pci_set_master(pdev); pci_read_config_dword(pdev, 0x40, &val); if ((val & 0x0000ff00) != 0) pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops); if (!hw) { pr_err("%s: ieee80211_alloc_hw failed\n", __func__); return -ENOMEM; } SET_IEEE80211_DEV(hw, &pdev->dev); pci_set_drvdata(pdev, hw); memset(hw->priv, 0, sizeof(*wl)); wl = brcms_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0), pdev, pdev->irq); if (!wl) { pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME, __func__); return -ENODEV; } return 0; } static int brcms_suspend(struct pci_dev *pdev, pm_message_t state) { struct brcms_info *wl; struct ieee80211_hw *hw; hw = pci_get_drvdata(pdev); wl = hw->priv; if (!wl) { wiphy_err(wl->wiphy, "brcms_suspend: pci_get_drvdata failed\n"); return -ENODEV; } /* only need to flag hw is down for proper resume */ spin_lock_bh(&wl->lock); wl->pub->hw_up = false; spin_unlock_bh(&wl->lock); pci_save_state(pdev); pci_disable_device(pdev); return pci_set_power_state(pdev, PCI_D3hot); } static int brcms_resume(struct pci_dev *pdev) { struct brcms_info *wl; struct ieee80211_hw *hw; int err = 0; u32 val; hw = pci_get_drvdata(pdev); wl = hw->priv; if (!wl) { wiphy_err(wl->wiphy, "wl: brcms_resume: pci_get_drvdata failed\n"); return -ENODEV; } err = pci_set_power_state(pdev, PCI_D0); if (err) return err; pci_restore_state(pdev); err = pci_enable_device(pdev); if (err) return err; pci_set_master(pdev); pci_read_config_dword(pdev, 0x40, &val); if ((val & 0x0000ff00) != 0) pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); /* * done. driver will be put in up state * in brcms_ops_add_interface() call. */ return err; } static struct pci_driver brcms_pci_driver = { .name = KBUILD_MODNAME, .probe = brcms_pci_probe, .suspend = brcms_suspend, .resume = brcms_resume, .remove = __devexit_p(brcms_remove), .id_table = brcms_pci_id_table, }; /** * This is the main entry point for the WL driver. * * This function determines if a device pointed to by pdev is a WL device, * and if so, performs a brcms_attach() on it. * */ static int __init brcms_module_init(void) { int error = -ENODEV; #ifdef BCMDBG if (msglevel != 0xdeadbeef) brcm_msg_level = msglevel; #endif /* BCMDBG */ error = pci_register_driver(&brcms_pci_driver); if (!error) return 0; return error; } /** * This function unloads the WL driver from the system. * * This function unconditionally unloads the WL driver module from the * system. * */ static void __exit brcms_module_exit(void) { pci_unregister_driver(&brcms_pci_driver); } module_init(brcms_module_init); module_exit(brcms_module_exit); /* * precondition: perimeter lock has been acquired */ void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif, bool state, int prio) { wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__); } /* * precondition: perimeter lock has been acquired */ void brcms_init(struct brcms_info *wl) { BCMMSG(wl->pub->ieee_hw->wiphy, "wl%d\n", wl->pub->unit); brcms_reset(wl); brcms_c_init(wl->wlc, wl->mute_tx); } /* * precondition: perimeter lock has been acquired */ uint brcms_reset(struct brcms_info *wl) { BCMMSG(wl->pub->ieee_hw->wiphy, "wl%d\n", wl->pub->unit); brcms_c_reset(wl->wlc); /* dpc will not be rescheduled */ wl->resched = 0; return 0; } void brcms_fatal_error(struct brcms_info *wl) { wiphy_err(wl->wlc->wiphy, "wl%d: fatal error, reinitializing\n", wl->wlc->pub->unit); brcms_reset(wl); ieee80211_restart_hw(wl->pub->ieee_hw); } /* * These are interrupt on/off entry points. Disable interrupts * during interrupt state transition. */ void brcms_intrson(struct brcms_info *wl) { unsigned long flags; spin_lock_irqsave(&wl->isr_lock, flags); brcms_c_intrson(wl->wlc); spin_unlock_irqrestore(&wl->isr_lock, flags); } u32 brcms_intrsoff(struct brcms_info *wl) { unsigned long flags; u32 status; spin_lock_irqsave(&wl->isr_lock, flags); status = brcms_c_intrsoff(wl->wlc); spin_unlock_irqrestore(&wl->isr_lock, flags); return status; } void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask) { unsigned long flags; spin_lock_irqsave(&wl->isr_lock, flags); brcms_c_intrsrestore(wl->wlc, macintmask); spin_unlock_irqrestore(&wl->isr_lock, flags); } /* * precondition: perimeter lock has been acquired */ int brcms_up(struct brcms_info *wl) { int error = 0; if (wl->pub->up) return 0; error = brcms_c_up(wl->wlc); return error; } /* * precondition: perimeter lock has been acquired */ void brcms_down(struct brcms_info *wl) { uint callbacks, ret_val = 0; /* call common down function */ ret_val = brcms_c_down(wl->wlc); callbacks = atomic_read(&wl->callbacks) - ret_val; /* wait for down callbacks to complete */ spin_unlock_bh(&wl->lock); /* For HIGH_only driver, it's important to actually schedule other work, * not just spin wait since everything runs at schedule level */ SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000); spin_lock_bh(&wl->lock); } /* * precondition: perimeter lock is not acquired */ static void _brcms_timer(struct work_struct *work) { struct brcms_timer *t = container_of(work, struct brcms_timer, dly_wrk.work); spin_lock_bh(&t->wl->lock); if (t->set) { if (t->periodic) { atomic_inc(&t->wl->callbacks); ieee80211_queue_delayed_work(t->wl->pub->ieee_hw, &t->dly_wrk, msecs_to_jiffies(t->ms)); } else { t->set = false; } t->fn(t->arg); } atomic_dec(&t->wl->callbacks); spin_unlock_bh(&t->wl->lock); } /* * Adds a timer to the list. Caller supplies a timer function. * Is called from wlc. * * precondition: perimeter lock has been acquired */ struct brcms_timer *brcms_init_timer(struct brcms_info *wl, void (*fn) (void *arg), void *arg, const char *name) { struct brcms_timer *t; t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC); if (!t) return NULL; INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer); t->wl = wl; t->fn = fn; t->arg = arg; t->next = wl->timers; wl->timers = t; #ifdef BCMDBG t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC); if (t->name) strcpy(t->name, name); #endif return t; } /* * adds only the kernel timer since it's going to be more accurate * as well as it's easier to make it periodic * * precondition: perimeter lock has been acquired */ void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic) { struct ieee80211_hw *hw = t->wl->pub->ieee_hw; #ifdef BCMDBG if (t->set) wiphy_err(hw->wiphy, "%s: Already set. Name: %s, per %d\n", __func__, t->name, periodic); #endif t->ms = ms; t->periodic = (bool) periodic; t->set = true; atomic_inc(&t->wl->callbacks); ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms)); } /* * return true if timer successfully deleted, false if still pending * * precondition: perimeter lock has been acquired */ bool brcms_del_timer(struct brcms_timer *t) { if (t->set) { t->set = false; if (!cancel_delayed_work(&t->dly_wrk)) return false; atomic_dec(&t->wl->callbacks); } return true; } /* * precondition: perimeter lock has been acquired */ void brcms_free_timer(struct brcms_timer *t) { struct brcms_info *wl = t->wl; struct brcms_timer *tmp; /* delete the timer in case it is active */ brcms_del_timer(t); if (wl->timers == t) { wl->timers = wl->timers->next; #ifdef BCMDBG kfree(t->name); #endif kfree(t); return; } tmp = wl->timers; while (tmp) { if (tmp->next == t) { tmp->next = t->next; #ifdef BCMDBG kfree(t->name); #endif kfree(t); return; } tmp = tmp->next; } } /* * precondition: perimeter lock has been acquired */ int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx) { int i, entry; const u8 *pdata; struct firmware_hdr *hdr; for (i = 0; i < wl->fw.fw_cnt; i++) { hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; for (entry = 0; entry < wl->fw.hdr_num_entries[i]; entry++, hdr++) { u32 len = le32_to_cpu(hdr->len); if (le32_to_cpu(hdr->idx) == idx) { pdata = wl->fw.fw_bin[i]->data + le32_to_cpu(hdr->offset); *pbuf = kmalloc(len, GFP_ATOMIC); if (*pbuf == NULL) goto fail; memcpy(*pbuf, pdata, len); return 0; } } } wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n", idx); *pbuf = NULL; fail: return -ENODATA; } /* * Precondition: Since this function is called in brcms_pci_probe() context, * no locking is required. */ int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx) { int i, entry; const u8 *pdata; struct firmware_hdr *hdr; for (i = 0; i < wl->fw.fw_cnt; i++) { hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; for (entry = 0; entry < wl->fw.hdr_num_entries[i]; entry++, hdr++) { if (le32_to_cpu(hdr->idx) == idx) { pdata = wl->fw.fw_bin[i]->data + le32_to_cpu(hdr->offset); if (le32_to_cpu(hdr->len) != 4) { wiphy_err(wl->wiphy, "ERROR: fw hdr len\n"); return -ENOMSG; } *n_bytes = le32_to_cpu(*((__le32 *) pdata)); return 0; } } } wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx); return -ENOMSG; } /* * precondition: can both be called locked and unlocked */ void brcms_ucode_free_buf(void *p) { kfree(p); } /* * checks validity of all firmware images loaded from user space * * Precondition: Since this function is called in brcms_pci_probe() context, * no locking is required. */ int brcms_check_firmwares(struct brcms_info *wl) { int i; int entry; int rc = 0; const struct firmware *fw; const struct firmware *fw_hdr; struct firmware_hdr *ucode_hdr; for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) { fw = wl->fw.fw_bin[i]; fw_hdr = wl->fw.fw_hdr[i]; if (fw == NULL && fw_hdr == NULL) { break; } else if (fw == NULL || fw_hdr == NULL) { wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n", __func__); rc = -EBADF; } else if (fw_hdr->size % sizeof(struct firmware_hdr)) { wiphy_err(wl->wiphy, "%s: non integral fw hdr file " "size %zu/%zu\n", __func__, fw_hdr->size, sizeof(struct firmware_hdr)); rc = -EBADF; } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) { wiphy_err(wl->wiphy, "%s: out of bounds fw file size " "%zu\n", __func__, fw->size); rc = -EBADF; } else { /* check if ucode section overruns firmware image */ ucode_hdr = (struct firmware_hdr *)fw_hdr->data; for (entry = 0; entry < wl->fw.hdr_num_entries[i] && !rc; entry++, ucode_hdr++) { if (le32_to_cpu(ucode_hdr->offset) + le32_to_cpu(ucode_hdr->len) > fw->size) { wiphy_err(wl->wiphy, "%s: conflicting bin/hdr\n", __func__); rc = -EBADF; } } } } if (rc == 0 && wl->fw.fw_cnt != i) { wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt); rc = -EBADF; } return rc; } /* * precondition: perimeter lock has been acquired */ bool brcms_rfkill_set_hw_state(struct brcms_info *wl) { bool blocked = brcms_c_check_radio_disabled(wl->wlc); spin_unlock_bh(&wl->lock); wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); if (blocked) wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy); spin_lock_bh(&wl->lock); return blocked; } /* * precondition: perimeter lock has been acquired */ void brcms_msleep(struct brcms_info *wl, uint ms) { spin_unlock_bh(&wl->lock); msleep(ms); spin_lock_bh(&wl->lock); }