diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 1841 |
1 files changed, 777 insertions, 1064 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 5bbc5298ef96..25fb3912342c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -64,96 +64,14 @@ MODULE_LICENSE("GPL"); * * default: bt_coex_active = true (BT_COEX_ENABLE) */ -static bool bt_coex_active = true; +bool bt_coex_active = true; +EXPORT_SYMBOL_GPL(bt_coex_active); module_param(bt_coex_active, bool, S_IRUGO); MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist"); -#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ - [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ - IWL_RATE_SISO_##s##M_PLCP, \ - IWL_RATE_MIMO2_##s##M_PLCP,\ - IWL_RATE_MIMO3_##s##M_PLCP,\ - IWL_RATE_##r##M_IEEE, \ - IWL_RATE_##ip##M_INDEX, \ - IWL_RATE_##in##M_INDEX, \ - IWL_RATE_##rp##M_INDEX, \ - IWL_RATE_##rn##M_INDEX, \ - IWL_RATE_##pp##M_INDEX, \ - IWL_RATE_##np##M_INDEX } - u32 iwl_debug_level; EXPORT_SYMBOL(iwl_debug_level); -/* - * Parameter order: - * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate - * - * If there isn't a valid next or previous rate then INV is used which - * maps to IWL_RATE_INVALID - * - */ -const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { - IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ - IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ - IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ - IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ - IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ - IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ - IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ - IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ - IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ - IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ - IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ - IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ - IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ - /* FIXME:RS: ^^ should be INV (legacy) */ -}; -EXPORT_SYMBOL(iwl_rates); - -int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) -{ - int idx = 0; - - /* HT rate format */ - if (rate_n_flags & RATE_MCS_HT_MSK) { - idx = (rate_n_flags & 0xff); - - if (idx >= IWL_RATE_MIMO3_6M_PLCP) - idx = idx - IWL_RATE_MIMO3_6M_PLCP; - else if (idx >= IWL_RATE_MIMO2_6M_PLCP) - idx = idx - IWL_RATE_MIMO2_6M_PLCP; - - idx += IWL_FIRST_OFDM_RATE; - /* skip 9M not supported in ht*/ - if (idx >= IWL_RATE_9M_INDEX) - idx += 1; - if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) - return idx; - - /* legacy rate format, search for match in table */ - } else { - for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) - if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) - return idx; - } - - return -1; -} -EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); - -u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) -{ - int i; - u8 ind = ant; - for (i = 0; i < RATE_ANT_NUM - 1; i++) { - ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; - if (priv->hw_params.valid_tx_ant & BIT(ind)) - return ind; - } - return ant; -} -EXPORT_SYMBOL(iwl_toggle_tx_ant); - const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; EXPORT_SYMBOL(iwl_bcast_addr); @@ -169,7 +87,7 @@ struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, struct ieee80211_hw *hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); if (hw == NULL) { - printk(KERN_ERR "%s: Can not allocate network device\n", + pr_err("%s: Can not allocate network device\n", cfg->name); goto out; } @@ -182,38 +100,33 @@ out: } EXPORT_SYMBOL(iwl_alloc_all); -void iwl_hw_detect(struct iwl_priv *priv) -{ - priv->hw_rev = _iwl_read32(priv, CSR_HW_REV); - priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG); - pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id); -} -EXPORT_SYMBOL(iwl_hw_detect); - /* * QoS support */ -static void iwl_update_qos(struct iwl_priv *priv) +static void iwl_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; - priv->qos_data.def_qos_parm.qos_flags = 0; + if (!ctx->is_active) + return; + + ctx->qos_data.def_qos_parm.qos_flags = 0; - if (priv->qos_data.qos_active) - priv->qos_data.def_qos_parm.qos_flags |= + if (ctx->qos_data.qos_active) + ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_UPDATE_EDCA_MSK; - if (priv->current_ht_config.is_ht) - priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; + if (ctx->ht.enabled) + ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", - priv->qos_data.qos_active, - priv->qos_data.def_qos_parm.qos_flags); + ctx->qos_data.qos_active, + ctx->qos_data.def_qos_parm.qos_flags); - iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM, + iwl_send_cmd_pdu_async(priv, ctx->qos_cmd, sizeof(struct iwl_qosparam_cmd), - &priv->qos_data.def_qos_parm, NULL); + &ctx->qos_data.def_qos_parm, NULL); } #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ @@ -231,7 +144,8 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, ht_info->ht_supported = true; - if (priv->cfg->ht_greenfield_support) + if (priv->cfg->ht_params && + priv->cfg->ht_params->ht_greenfield_support) ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; ht_info->cap |= IEEE80211_HT_CAP_SGI_20; max_bit_rate = MAX_BIT_RATE_20_MHZ; @@ -246,7 +160,11 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; + if (priv->cfg->bt_params && priv->cfg->bt_params->ampdu_factor) + ht_info->ampdu_factor = priv->cfg->bt_params->ampdu_factor; ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; + if (priv->cfg->bt_params && priv->cfg->bt_params->ampdu_density) + ht_info->ampdu_density = priv->cfg->bt_params->ampdu_density; ht_info->mcs.rx_mask[0] = 0xFF; if (rx_chains_num >= 2) @@ -400,37 +318,48 @@ void iwlcore_free_geos(struct iwl_priv *priv) EXPORT_SYMBOL(iwlcore_free_geos); /* - * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this + * iwlcore_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this * function. */ -void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info, - __le32 *tx_flags) +void iwlcore_tx_cmd_protection(struct iwl_priv *priv, + struct ieee80211_tx_info *info, + __le16 fc, __le32 *tx_flags) { if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { *tx_flags |= TX_CMD_FLG_RTS_MSK; *tx_flags &= ~TX_CMD_FLG_CTS_MSK; + *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; + + if (!ieee80211_is_mgmt(fc)) + return; + + switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { + case cpu_to_le16(IEEE80211_STYPE_AUTH): + case cpu_to_le16(IEEE80211_STYPE_DEAUTH): + case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): + case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + break; + } } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { *tx_flags &= ~TX_CMD_FLG_RTS_MSK; *tx_flags |= TX_CMD_FLG_CTS_MSK; + *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; } } -EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag); +EXPORT_SYMBOL(iwlcore_tx_cmd_protection); -static bool is_single_rx_stream(struct iwl_priv *priv) -{ - return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC || - priv->current_ht_config.single_chain_sufficient; -} -static u8 iwl_is_channel_extension(struct iwl_priv *priv, - enum ieee80211_band band, - u16 channel, u8 extension_chan_offset) +static bool iwl_is_channel_extension(struct iwl_priv *priv, + enum ieee80211_band band, + u16 channel, u8 extension_chan_offset) { const struct iwl_channel_info *ch_info; ch_info = iwl_get_channel_info(priv, band, channel); if (!is_channel_valid(ch_info)) - return 0; + return false; if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) return !(ch_info->ht40_extension_channel & @@ -439,38 +368,59 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv, return !(ch_info->ht40_extension_channel & IEEE80211_CHAN_NO_HT40MINUS); - return 0; + return false; } -u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv, - struct ieee80211_sta_ht_cap *sta_ht_inf) +bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv, + struct iwl_rxon_context *ctx, + struct ieee80211_sta_ht_cap *ht_cap) { - struct iwl_ht_config *ht_conf = &priv->current_ht_config; - - if (!ht_conf->is_ht || !ht_conf->is_40mhz) - return 0; + if (!ctx->ht.enabled || !ctx->ht.is_40mhz) + return false; - /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 + /* + * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 * the bit will not set if it is pure 40MHz case */ - if (sta_ht_inf) { - if (!sta_ht_inf->ht_supported) - return 0; - } -#ifdef CONFIG_IWLWIFI_DEBUG + if (ht_cap && !ht_cap->ht_supported) + return false; + +#ifdef CONFIG_IWLWIFI_DEBUGFS if (priv->disable_ht40) - return 0; + return false; #endif + return iwl_is_channel_extension(priv, priv->band, - le16_to_cpu(priv->staging_rxon.channel), - ht_conf->extension_chan_offset); + le16_to_cpu(ctx->staging.channel), + ctx->ht.extension_chan_offset); } EXPORT_SYMBOL(iwl_is_ht40_tx_allowed); static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) { - u16 new_val = 0; - u16 beacon_factor = 0; + u16 new_val; + u16 beacon_factor; + + /* + * If mac80211 hasn't given us a beacon interval, program + * the default into the device (not checking this here + * would cause the adjustment below to return the maximum + * value, which may break PAN.) + */ + if (!beacon_val) + return DEFAULT_BEACON_INTERVAL; + + /* + * If the beacon interval we obtained from the peer + * is too large, we'll have to wake up more often + * (and in IBSS case, we'll beacon too much) + * + * For example, if max_beacon_val is 4096, and the + * requested beacon interval is 7000, we'll have to + * use 3500 to be able to wake up on the beacons. + * + * This could badly influence beacon detection stats. + */ beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; new_val = beacon_val / beacon_factor; @@ -481,51 +431,76 @@ static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) return new_val; } -void iwl_setup_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif) +int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { u64 tsf; s32 interval_tm, rem; - unsigned long flags; struct ieee80211_conf *conf = NULL; u16 beacon_int; + struct ieee80211_vif *vif = ctx->vif; conf = ieee80211_get_hw_conf(priv->hw); - spin_lock_irqsave(&priv->lock, flags); - priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); - priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval); + lockdep_assert_held(&priv->mutex); + + memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); + + ctx->timing.timestamp = cpu_to_le64(priv->timestamp); + ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); - beacon_int = vif->bss_conf.beacon_int; + beacon_int = vif ? vif->bss_conf.beacon_int : 0; - if (vif->type == NL80211_IFTYPE_ADHOC) { - /* TODO: we need to get atim_window from upper stack - * for now we set to 0 */ - priv->rxon_timing.atim_window = 0; + /* + * TODO: For IBSS we need to get atim_window from mac80211, + * for now just always use 0 + */ + ctx->timing.atim_window = 0; + + if (ctx->ctxid == IWL_RXON_CTX_PAN && + (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) && + iwl_is_associated(priv, IWL_RXON_CTX_BSS) && + priv->contexts[IWL_RXON_CTX_BSS].vif && + priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) { + ctx->timing.beacon_interval = + priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval; + beacon_int = le16_to_cpu(ctx->timing.beacon_interval); + } else if (ctx->ctxid == IWL_RXON_CTX_BSS && + iwl_is_associated(priv, IWL_RXON_CTX_PAN) && + priv->contexts[IWL_RXON_CTX_PAN].vif && + priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int && + (!iwl_is_associated_ctx(ctx) || !ctx->vif || + !ctx->vif->bss_conf.beacon_int)) { + ctx->timing.beacon_interval = + priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval; + beacon_int = le16_to_cpu(ctx->timing.beacon_interval); } else { - priv->rxon_timing.atim_window = 0; + beacon_int = iwl_adjust_beacon_interval(beacon_int, + priv->hw_params.max_beacon_itrvl * TIME_UNIT); + ctx->timing.beacon_interval = cpu_to_le16(beacon_int); } - beacon_int = iwl_adjust_beacon_interval(beacon_int, - priv->hw_params.max_beacon_itrvl * 1024); - priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int); - tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ - interval_tm = beacon_int * 1024; + interval_tm = beacon_int * TIME_UNIT; rem = do_div(tsf, interval_tm); - priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem); + ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); + + ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; - spin_unlock_irqrestore(&priv->lock, flags); IWL_DEBUG_ASSOC(priv, "beacon interval %d beacon timer %d beacon tim %d\n", - le16_to_cpu(priv->rxon_timing.beacon_interval), - le32_to_cpu(priv->rxon_timing.beacon_init_val), - le16_to_cpu(priv->rxon_timing.atim_window)); + le16_to_cpu(ctx->timing.beacon_interval), + le32_to_cpu(ctx->timing.beacon_init_val), + le16_to_cpu(ctx->timing.atim_window)); + + return iwl_send_cmd_pdu(priv, ctx->rxon_timing_cmd, + sizeof(ctx->timing), &ctx->timing); } -EXPORT_SYMBOL(iwl_setup_rxon_timing); +EXPORT_SYMBOL(iwl_send_rxon_timing); -void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) +void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx, + int hw_decrypt) { - struct iwl_rxon_cmd *rxon = &priv->staging_rxon; + struct iwl_rxon_cmd *rxon = &ctx->staging; if (hw_decrypt) rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; @@ -535,76 +510,74 @@ void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) } EXPORT_SYMBOL(iwl_set_rxon_hwcrypto); -/** - * iwl_check_rxon_cmd - validate RXON structure is valid - * - * NOTE: This is really only useful during development and can eventually - * be #ifdef'd out once the driver is stable and folks aren't actively - * making changes - */ -int iwl_check_rxon_cmd(struct iwl_priv *priv) +/* validate RXON structure is valid */ +int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { - int error = 0; - int counter = 1; - struct iwl_rxon_cmd *rxon = &priv->staging_rxon; + struct iwl_rxon_cmd *rxon = &ctx->staging; + bool error = false; if (rxon->flags & RXON_FLG_BAND_24G_MSK) { - error |= le32_to_cpu(rxon->flags & - (RXON_FLG_TGJ_NARROW_BAND_MSK | - RXON_FLG_RADAR_DETECT_MSK)); - if (error) - IWL_WARN(priv, "check 24G fields %d | %d\n", - counter++, error); + if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { + IWL_WARN(priv, "check 2.4G: wrong narrow\n"); + error = true; + } + if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { + IWL_WARN(priv, "check 2.4G: wrong radar\n"); + error = true; + } } else { - error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? - 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); - if (error) - IWL_WARN(priv, "check 52 fields %d | %d\n", - counter++, error); - error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); - if (error) - IWL_WARN(priv, "check 52 CCK %d | %d\n", - counter++, error); - } - error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; - if (error) - IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error); + if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { + IWL_WARN(priv, "check 5.2G: not short slot!\n"); + error = true; + } + if (rxon->flags & RXON_FLG_CCK_MSK) { + IWL_WARN(priv, "check 5.2G: CCK!\n"); + error = true; + } + } + if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { + IWL_WARN(priv, "mac/bssid mcast!\n"); + error = true; + } /* make sure basic rates 6Mbps and 1Mbps are supported */ - error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && - ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); - if (error) - IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error); + if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 && + (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) { + IWL_WARN(priv, "neither 1 nor 6 are basic\n"); + error = true; + } - error |= (le16_to_cpu(rxon->assoc_id) > 2007); - if (error) - IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error); + if (le16_to_cpu(rxon->assoc_id) > 2007) { + IWL_WARN(priv, "aid > 2007\n"); + error = true; + } - error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) - == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); - if (error) - IWL_WARN(priv, "check CCK and short slot %d | %d\n", - counter++, error); + if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) + == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { + IWL_WARN(priv, "CCK and short slot\n"); + error = true; + } - error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) - == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); - if (error) - IWL_WARN(priv, "check CCK & auto detect %d | %d\n", - counter++, error); + if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) + == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { + IWL_WARN(priv, "CCK and auto detect"); + error = true; + } - error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | - RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); - if (error) - IWL_WARN(priv, "check TGG and auto detect %d | %d\n", - counter++, error); + if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | + RXON_FLG_TGG_PROTECT_MSK)) == + RXON_FLG_TGG_PROTECT_MSK) { + IWL_WARN(priv, "TGg but no auto-detect\n"); + error = true; + } if (error) IWL_WARN(priv, "Tuning to channel %d\n", le16_to_cpu(rxon->channel)); if (error) { - IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n"); - return -1; + IWL_ERR(priv, "Invalid RXON\n"); + return -EINVAL; } return 0; } @@ -618,66 +591,83 @@ EXPORT_SYMBOL(iwl_check_rxon_cmd); * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. */ -int iwl_full_rxon_required(struct iwl_priv *priv) +int iwl_full_rxon_required(struct iwl_priv *priv, + struct iwl_rxon_context *ctx) { + const struct iwl_rxon_cmd *staging = &ctx->staging; + const struct iwl_rxon_cmd *active = &ctx->active; + +#define CHK(cond) \ + if ((cond)) { \ + IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \ + return 1; \ + } + +#define CHK_NEQ(c1, c2) \ + if ((c1) != (c2)) { \ + IWL_DEBUG_INFO(priv, "need full RXON - " \ + #c1 " != " #c2 " - %d != %d\n", \ + (c1), (c2)); \ + return 1; \ + } /* These items are only settable from the full RXON command */ - if (!(iwl_is_associated(priv)) || - compare_ether_addr(priv->staging_rxon.bssid_addr, - priv->active_rxon.bssid_addr) || - compare_ether_addr(priv->staging_rxon.node_addr, - priv->active_rxon.node_addr) || - compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, - priv->active_rxon.wlap_bssid_addr) || - (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || - (priv->staging_rxon.channel != priv->active_rxon.channel) || - (priv->staging_rxon.air_propagation != - priv->active_rxon.air_propagation) || - (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != - priv->active_rxon.ofdm_ht_single_stream_basic_rates) || - (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != - priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || - (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates != - priv->active_rxon.ofdm_ht_triple_stream_basic_rates) || - (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) - return 1; + CHK(!iwl_is_associated_ctx(ctx)); + CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr)); + CHK(compare_ether_addr(staging->node_addr, active->node_addr)); + CHK(compare_ether_addr(staging->wlap_bssid_addr, + active->wlap_bssid_addr)); + CHK_NEQ(staging->dev_type, active->dev_type); + CHK_NEQ(staging->channel, active->channel); + CHK_NEQ(staging->air_propagation, active->air_propagation); + CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates, + active->ofdm_ht_single_stream_basic_rates); + CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates, + active->ofdm_ht_dual_stream_basic_rates); + CHK_NEQ(staging->ofdm_ht_triple_stream_basic_rates, + active->ofdm_ht_triple_stream_basic_rates); + CHK_NEQ(staging->assoc_id, active->assoc_id); /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can * be updated with the RXON_ASSOC command -- however only some * flag transitions are allowed using RXON_ASSOC */ /* Check if we are not switching bands */ - if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != - (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) - return 1; + CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK, + active->flags & RXON_FLG_BAND_24G_MSK); /* Check if we are switching association toggle */ - if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != - (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) - return 1; + CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK, + active->filter_flags & RXON_FILTER_ASSOC_MSK); + +#undef CHK +#undef CHK_NEQ return 0; } EXPORT_SYMBOL(iwl_full_rxon_required); -u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) +u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv, + struct iwl_rxon_context *ctx) { /* * Assign the lowest rate -- should really get this from * the beacon skb from mac80211. */ - if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) + if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) return IWL_RATE_1M_PLCP; else return IWL_RATE_6M_PLCP; } EXPORT_SYMBOL(iwl_rate_get_lowest_plcp); -void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) +static void _iwl_set_rxon_ht(struct iwl_priv *priv, + struct iwl_ht_config *ht_conf, + struct iwl_rxon_context *ctx) { - struct iwl_rxon_cmd *rxon = &priv->staging_rxon; + struct iwl_rxon_cmd *rxon = &ctx->staging; - if (!ht_conf->is_ht) { + if (!ctx->ht.enabled) { rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | RXON_FLG_HT40_PROT_MSK | @@ -685,22 +675,22 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) return; } - /* FIXME: if the definition of ht_protection changed, the "translation" + /* FIXME: if the definition of ht.protection changed, the "translation" * will be needed for rxon->flags */ - rxon->flags |= cpu_to_le32(ht_conf->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS); + rxon->flags |= cpu_to_le32(ctx->ht.protection << RXON_FLG_HT_OPERATING_MODE_POS); /* Set up channel bandwidth: * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ /* clear the HT channel mode before set the mode */ rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); - if (iwl_is_ht40_tx_allowed(priv, NULL)) { + if (iwl_is_ht40_tx_allowed(priv, ctx, NULL)) { /* pure ht40 */ - if (ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { + if (ctx->ht.protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; /* Note: control channel is opposite of extension channel */ - switch (ht_conf->extension_chan_offset) { + switch (ctx->ht.extension_chan_offset) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; break; @@ -710,7 +700,7 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) } } else { /* Note: control channel is opposite of extension channel */ - switch (ht_conf->extension_chan_offset) { + switch (ctx->ht.extension_chan_offset) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; @@ -731,162 +721,58 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) } if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv); + priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " "extension channel offset 0x%x\n", - le32_to_cpu(rxon->flags), ht_conf->ht_protection, - ht_conf->extension_chan_offset); + le32_to_cpu(rxon->flags), ctx->ht.protection, + ctx->ht.extension_chan_offset); } -EXPORT_SYMBOL(iwl_set_rxon_ht); - -#define IWL_NUM_RX_CHAINS_MULTIPLE 3 -#define IWL_NUM_RX_CHAINS_SINGLE 2 -#define IWL_NUM_IDLE_CHAINS_DUAL 2 -#define IWL_NUM_IDLE_CHAINS_SINGLE 1 -/* - * Determine how many receiver/antenna chains to use. - * - * More provides better reception via diversity. Fewer saves power - * at the expense of throughput, but only when not in powersave to - * start with. - * - * MIMO (dual stream) requires at least 2, but works better with 3. - * This does not determine *which* chains to use, just how many. - */ -static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) +void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) { - /* # of Rx chains to use when expecting MIMO. */ - if (is_single_rx_stream(priv)) - return IWL_NUM_RX_CHAINS_SINGLE; - else - return IWL_NUM_RX_CHAINS_MULTIPLE; -} + struct iwl_rxon_context *ctx; -/* - * When we are in power saving mode, unless device support spatial - * multiplexing power save, use the active count for rx chain count. - */ -static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) -{ - /* # Rx chains when idling, depending on SMPS mode */ - switch (priv->current_ht_config.smps) { - case IEEE80211_SMPS_STATIC: - case IEEE80211_SMPS_DYNAMIC: - return IWL_NUM_IDLE_CHAINS_SINGLE; - case IEEE80211_SMPS_OFF: - return active_cnt; - default: - WARN(1, "invalid SMPS mode %d", - priv->current_ht_config.smps); - return active_cnt; - } + for_each_context(priv, ctx) + _iwl_set_rxon_ht(priv, ht_conf, ctx); } +EXPORT_SYMBOL(iwl_set_rxon_ht); -/* up to 4 chains */ -static u8 iwl_count_chain_bitmap(u32 chain_bitmap) -{ - u8 res; - res = (chain_bitmap & BIT(0)) >> 0; - res += (chain_bitmap & BIT(1)) >> 1; - res += (chain_bitmap & BIT(2)) >> 2; - res += (chain_bitmap & BIT(3)) >> 3; - return res; -} - -/** - * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image - * - * Selects how many and which Rx receivers/antennas/chains to use. - * This should not be used for scan command ... it puts data in wrong place. - */ -void iwl_set_rxon_chain(struct iwl_priv *priv) -{ - bool is_single = is_single_rx_stream(priv); - bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); - u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; - u32 active_chains; - u16 rx_chain; - - /* Tell uCode which antennas are actually connected. - * Before first association, we assume all antennas are connected. - * Just after first association, iwl_chain_noise_calibration() - * checks which antennas actually *are* connected. */ - if (priv->chain_noise_data.active_chains) - active_chains = priv->chain_noise_data.active_chains; - else - active_chains = priv->hw_params.valid_rx_ant; - - rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; - - /* How many receivers should we use? */ - active_rx_cnt = iwl_get_active_rx_chain_count(priv); - idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); - - - /* correct rx chain count according hw settings - * and chain noise calibration - */ - valid_rx_cnt = iwl_count_chain_bitmap(active_chains); - if (valid_rx_cnt < active_rx_cnt) - active_rx_cnt = valid_rx_cnt; - - if (valid_rx_cnt < idle_rx_cnt) - idle_rx_cnt = valid_rx_cnt; - - rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; - rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; - - priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain); - - if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) - priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; - else - priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; - - IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", - priv->staging_rxon.rx_chain, - active_rx_cnt, idle_rx_cnt); - - WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || - active_rx_cnt < idle_rx_cnt); -} -EXPORT_SYMBOL(iwl_set_rxon_chain); - -/* Return valid channel */ +/* Return valid, unused, channel for a passive scan to reset the RF */ u8 iwl_get_single_channel_number(struct iwl_priv *priv, - enum ieee80211_band band) + enum ieee80211_band band) { const struct iwl_channel_info *ch_info; int i; u8 channel = 0; + u8 min, max; + struct iwl_rxon_context *ctx; - /* only scan single channel, good enough to reset the RF */ - /* pick the first valid not in-use channel */ if (band == IEEE80211_BAND_5GHZ) { - for (i = 14; i < priv->channel_count; i++) { - if (priv->channel_info[i].channel != - le16_to_cpu(priv->staging_rxon.channel)) { - channel = priv->channel_info[i].channel; - ch_info = iwl_get_channel_info(priv, - band, channel); - if (is_channel_valid(ch_info)) - break; - } - } + min = 14; + max = priv->channel_count; } else { - for (i = 0; i < 14; i++) { - if (priv->channel_info[i].channel != - le16_to_cpu(priv->staging_rxon.channel)) { - channel = - priv->channel_info[i].channel; - ch_info = iwl_get_channel_info(priv, - band, channel); - if (is_channel_valid(ch_info)) - break; - } + min = 0; + max = 14; + } + + for (i = min; i < max; i++) { + bool busy = false; + + for_each_context(priv, ctx) { + busy = priv->channel_info[i].channel == + le16_to_cpu(ctx->staging.channel); + if (busy) + break; } + + if (busy) + continue; + + channel = priv->channel_info[i].channel; + ch_info = iwl_get_channel_info(priv, band, channel); + if (is_channel_valid(ch_info)) + break; } return channel; @@ -894,35 +780,27 @@ u8 iwl_get_single_channel_number(struct iwl_priv *priv, EXPORT_SYMBOL(iwl_get_single_channel_number); /** - * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON - * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz - * @channel: Any channel valid for the requested phymode + * iwl_set_rxon_channel - Set the band and channel values in staging RXON + * @ch: requested channel as a pointer to struct ieee80211_channel - * In addition to setting the staging RXON, priv->phymode is also set. - * * NOTE: Does not commit to the hardware; it sets appropriate bit fields - * in the staging RXON flag structure based on the phymode + * in the staging RXON flag structure based on the ch->band */ -int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) +int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch, + struct iwl_rxon_context *ctx) { enum ieee80211_band band = ch->band; - u16 channel = ieee80211_frequency_to_channel(ch->center_freq); - - if (!iwl_get_channel_info(priv, band, channel)) { - IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n", - channel, band); - return -EINVAL; - } + u16 channel = ch->hw_value; - if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && + if ((le16_to_cpu(ctx->staging.channel) == channel) && (priv->band == band)) return 0; - priv->staging_rxon.channel = cpu_to_le16(channel); + ctx->staging.channel = cpu_to_le16(channel); if (band == IEEE80211_BAND_5GHZ) - priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; + ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK; else - priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; + ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; priv->band = band; @@ -932,64 +810,62 @@ int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) } EXPORT_SYMBOL(iwl_set_rxon_channel); -static void iwl_set_flags_for_band(struct iwl_priv *priv, - enum ieee80211_band band, - struct ieee80211_vif *vif) +void iwl_set_flags_for_band(struct iwl_priv *priv, + struct iwl_rxon_context *ctx, + enum ieee80211_band band, + struct ieee80211_vif *vif) { if (band == IEEE80211_BAND_5GHZ) { - priv->staging_rxon.flags &= + ctx->staging.flags &= ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_CCK_MSK); - priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; } else { /* Copied from iwl_post_associate() */ - if (vif && vif->bss_conf.assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) - priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; + if (vif && vif->bss_conf.use_short_slot) + ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; else - priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; - - if (vif && vif->type == NL80211_IFTYPE_ADHOC) - priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; + ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; - priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; - priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; - priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; + ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; + ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK; + ctx->staging.flags &= ~RXON_FLG_CCK_MSK; } } +EXPORT_SYMBOL(iwl_set_flags_for_band); /* * initialize rxon structure with default values from eeprom */ void iwl_connection_init_rx_config(struct iwl_priv *priv, - struct ieee80211_vif *vif) + struct iwl_rxon_context *ctx) { const struct iwl_channel_info *ch_info; - enum nl80211_iftype type = NL80211_IFTYPE_STATION; - if (vif) - type = vif->type; + memset(&ctx->staging, 0, sizeof(ctx->staging)); - memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); - - switch (type) { + if (!ctx->vif) { + ctx->staging.dev_type = ctx->unused_devtype; + } else switch (ctx->vif->type) { case NL80211_IFTYPE_AP: - priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; + ctx->staging.dev_type = ctx->ap_devtype; break; case NL80211_IFTYPE_STATION: - priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; - priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; + ctx->staging.dev_type = ctx->station_devtype; + ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; break; case NL80211_IFTYPE_ADHOC: - priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; - priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; - priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | + ctx->staging.dev_type = ctx->ibss_devtype; + ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; + ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK | RXON_FILTER_ACCEPT_GRP_MSK; break; default: - IWL_ERR(priv, "Unsupported interface type %d\n", type); + IWL_ERR(priv, "Unsupported interface type %d\n", + ctx->vif->type); break; } @@ -997,42 +873,44 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv, /* TODO: Figure out when short_preamble would be set and cache from * that */ if (!hw_to_local(priv->hw)->short_preamble) - priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; else - priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; #endif ch_info = iwl_get_channel_info(priv, priv->band, - le16_to_cpu(priv->active_rxon.channel)); + le16_to_cpu(ctx->active.channel)); if (!ch_info) ch_info = &priv->channel_info[0]; - priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); + ctx->staging.channel = cpu_to_le16(ch_info->channel); priv->band = ch_info->band; - iwl_set_flags_for_band(priv, priv->band, vif); + iwl_set_flags_for_band(priv, ctx, priv->band, ctx->vif); - priv->staging_rxon.ofdm_basic_rates = + ctx->staging.ofdm_basic_rates = (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; - priv->staging_rxon.cck_basic_rates = + ctx->staging.cck_basic_rates = (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; /* clear both MIX and PURE40 mode flag */ - priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | + ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | RXON_FLG_CHANNEL_MODE_PURE_40); - memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); - memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); - priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; - priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; - priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff; + if (ctx->vif) + memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN); + + ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff; + ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff; + ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff; } EXPORT_SYMBOL(iwl_connection_init_rx_config); -static void iwl_set_rate(struct iwl_priv *priv) +void iwl_set_rate(struct iwl_priv *priv) { const struct ieee80211_supported_band *hw = NULL; struct ieee80211_rate *rate; + struct iwl_rxon_context *ctx; int i; hw = iwl_get_hw_mode(priv, priv->band); @@ -1051,39 +929,69 @@ static void iwl_set_rate(struct iwl_priv *priv) IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate); - priv->staging_rxon.cck_basic_rates = - (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; + for_each_context(priv, ctx) { + ctx->staging.cck_basic_rates = + (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; + + ctx->staging.ofdm_basic_rates = + (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; + } +} +EXPORT_SYMBOL(iwl_set_rate); + +void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) +{ + /* + * MULTI-FIXME + * See iwl_mac_channel_switch. + */ + struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; - priv->staging_rxon.ofdm_basic_rates = - (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; + if (priv->switch_rxon.switch_in_progress) { + ieee80211_chswitch_done(ctx->vif, is_success); + mutex_lock(&priv->mutex); + priv->switch_rxon.switch_in_progress = false; + mutex_unlock(&priv->mutex); + } } +EXPORT_SYMBOL(iwl_chswitch_done); void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; struct iwl_csa_notification *csa = &(pkt->u.csa_notif); + /* + * MULTI-FIXME + * See iwl_mac_channel_switch. + */ + struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; + struct iwl_rxon_cmd *rxon = (void *)&ctx->active; if (priv->switch_rxon.switch_in_progress) { if (!le32_to_cpu(csa->status) && (csa->channel == priv->switch_rxon.channel)) { rxon->channel = csa->channel; - priv->staging_rxon.channel = csa->channel; + ctx->staging.channel = csa->channel; IWL_DEBUG_11H(priv, "CSA notif: channel %d\n", le16_to_cpu(csa->channel)); - } else + iwl_chswitch_done(priv, true); + } else { IWL_ERR(priv, "CSA notif (fail) : channel %d\n", le16_to_cpu(csa->channel)); - - priv->switch_rxon.switch_in_progress = false; + iwl_chswitch_done(priv, false); + } } } EXPORT_SYMBOL(iwl_rx_csa); #ifdef CONFIG_IWLWIFI_DEBUG -void iwl_print_rx_config_cmd(struct iwl_priv *priv) +void iwl_print_rx_config_cmd(struct iwl_priv *priv, + struct iwl_rxon_context *ctx) { - struct iwl_rxon_cmd *rxon = &priv->staging_rxon; + struct iwl_rxon_cmd *rxon = &ctx->staging; IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); @@ -1123,7 +1031,8 @@ void iwl_irq_handle_error(struct iwl_priv *priv) priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, false); #ifdef CONFIG_IWLWIFI_DEBUG if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) - iwl_print_rx_config_cmd(priv); + iwl_print_rx_config_cmd(priv, + &priv->contexts[IWL_RXON_CTX_BSS]); #endif wake_up_interruptible(&priv->wait_command_queue); @@ -1227,7 +1136,7 @@ int iwl_apm_init(struct iwl_priv *priv) * If not (unlikely), enable L0S, so there is at least some * power savings, even without L1. */ - if (priv->cfg->set_l0s) { + if (priv->cfg->base_params->set_l0s) { lctl = iwl_pcie_link_ctl(priv); if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN) { @@ -1244,8 +1153,9 @@ int iwl_apm_init(struct iwl_priv *priv) } /* Configure analog phase-lock-loop before activating to D0A */ - if (priv->cfg->pll_cfg_val) - iwl_set_bit(priv, CSR_ANA_PLL_CFG, priv->cfg->pll_cfg_val); + if (priv->cfg->base_params->pll_cfg_val) + iwl_set_bit(priv, CSR_ANA_PLL_CFG, + priv->cfg->base_params->pll_cfg_val); /* * Set "initialization complete" bit to move adapter from @@ -1276,7 +1186,7 @@ int iwl_apm_init(struct iwl_priv *priv) * do not disable clocks. This preserves any hardware bits already * set by default in "CLK_CTRL_REG" after reset. */ - if (priv->cfg->use_bsm) + if (priv->cfg->base_params->use_bsm) iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT); else @@ -1294,70 +1204,6 @@ out: EXPORT_SYMBOL(iwl_apm_init); - -void iwl_configure_filter(struct ieee80211_hw *hw, - unsigned int changed_flags, - unsigned int *total_flags, - u64 multicast) -{ - struct iwl_priv *priv = hw->priv; - __le32 filter_or = 0, filter_nand = 0; - -#define CHK(test, flag) do { \ - if (*total_flags & (test)) \ - filter_or |= (flag); \ - else \ - filter_nand |= (flag); \ - } while (0) - - IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", - changed_flags, *total_flags); - - CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); - CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK); - CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); - -#undef CHK - - mutex_lock(&priv->mutex); - - priv->staging_rxon.filter_flags &= ~filter_nand; - priv->staging_rxon.filter_flags |= filter_or; - - iwlcore_commit_rxon(priv); - - mutex_unlock(&priv->mutex); - - /* - * Receiving all multicast frames is always enabled by the - * default flags setup in iwl_connection_init_rx_config() - * since we currently do not support programming multicast - * filters into the device. - */ - *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | - FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; -} -EXPORT_SYMBOL(iwl_configure_filter); - -int iwl_set_hw_params(struct iwl_priv *priv) -{ - priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; - priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; - if (priv->cfg->mod_params->amsdu_size_8K) - priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K); - else - priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K); - - priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; - - if (priv->cfg->mod_params->disable_11n) - priv->cfg->sku &= ~IWL_SKU_N; - - /* Device-specific setup */ - return priv->cfg->ops->lib->set_hw_params(priv); -} -EXPORT_SYMBOL(iwl_set_hw_params); - int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) { int ret = 0; @@ -1507,200 +1353,6 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) } EXPORT_SYMBOL(iwl_send_statistics_request); -/** - * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, - * using sample data 100 bytes apart. If these sample points are good, - * it's a pretty good bet that everything between them is good, too. - */ -static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) -{ - u32 val; - int ret = 0; - u32 errcnt = 0; - u32 i; - - IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); - - for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { - /* read data comes through single port, auto-incr addr */ - /* NOTE: Use the debugless read so we don't flood kernel log - * if IWL_DL_IO is set */ - iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, - i + IWL49_RTC_INST_LOWER_BOUND); - val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (val != le32_to_cpu(*image)) { - ret = -EIO; - errcnt++; - if (errcnt >= 3) - break; - } - } - - return ret; -} - -/** - * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host, - * looking at all data. - */ -static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image, - u32 len) -{ - u32 val; - u32 save_len = len; - int ret = 0; - u32 errcnt; - - IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); - - iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, - IWL49_RTC_INST_LOWER_BOUND); - - errcnt = 0; - for (; len > 0; len -= sizeof(u32), image++) { - /* read data comes through single port, auto-incr addr */ - /* NOTE: Use the debugless read so we don't flood kernel log - * if IWL_DL_IO is set */ - val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (val != le32_to_cpu(*image)) { - IWL_ERR(priv, "uCode INST section is invalid at " - "offset 0x%x, is 0x%x, s/b 0x%x\n", - save_len - len, val, le32_to_cpu(*image)); - ret = -EIO; - errcnt++; - if (errcnt >= 20) - break; - } - } - - if (!errcnt) - IWL_DEBUG_INFO(priv, - "ucode image in INSTRUCTION memory is good\n"); - - return ret; -} - -/** - * iwl_verify_ucode - determine which instruction image is in SRAM, - * and verify its contents - */ -int iwl_verify_ucode(struct iwl_priv *priv) -{ - __le32 *image; - u32 len; - int ret; - - /* Try bootstrap */ - image = (__le32 *)priv->ucode_boot.v_addr; - len = priv->ucode_boot.len; - ret = iwlcore_verify_inst_sparse(priv, image, len); - if (!ret) { - IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); - return 0; - } - - /* Try initialize */ - image = (__le32 *)priv->ucode_init.v_addr; - len = priv->ucode_init.len; - ret = iwlcore_verify_inst_sparse(priv, image, len); - if (!ret) { - IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); - return 0; - } - - /* Try runtime/protocol */ - image = (__le32 *)priv->ucode_code.v_addr; - len = priv->ucode_code.len; - ret = iwlcore_verify_inst_sparse(priv, image, len); - if (!ret) { - IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); - return 0; - } - - IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); - - /* Since nothing seems to match, show first several data entries in - * instruction SRAM, so maybe visual inspection will give a clue. - * Selection of bootstrap image (vs. other images) is arbitrary. */ - image = (__le32 *)priv->ucode_boot.v_addr; - len = priv->ucode_boot.len; - ret = iwl_verify_inst_full(priv, image, len); - - return ret; -} -EXPORT_SYMBOL(iwl_verify_ucode); - - -void iwl_rf_kill_ct_config(struct iwl_priv *priv) -{ - struct iwl_ct_kill_config cmd; - struct iwl_ct_kill_throttling_config adv_cmd; - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&priv->lock, flags); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); - spin_unlock_irqrestore(&priv->lock, flags); - priv->thermal_throttle.ct_kill_toggle = false; - - if (priv->cfg->support_ct_kill_exit) { - adv_cmd.critical_temperature_enter = - cpu_to_le32(priv->hw_params.ct_kill_threshold); - adv_cmd.critical_temperature_exit = - cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); - - ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - sizeof(adv_cmd), &adv_cmd); - if (ret) - IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); - else - IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " - "succeeded, " - "critical temperature enter is %d," - "exit is %d\n", - priv->hw_params.ct_kill_threshold, - priv->hw_params.ct_kill_exit_threshold); - } else { - cmd.critical_temperature_R = - cpu_to_le32(priv->hw_params.ct_kill_threshold); - - ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - sizeof(cmd), &cmd); - if (ret) - IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); - else - IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " - "succeeded, " - "critical temperature is %d\n", - priv->hw_params.ct_kill_threshold); - } -} -EXPORT_SYMBOL(iwl_rf_kill_ct_config); - - -/* - * CARD_STATE_CMD - * - * Use: Sets the device's internal card state to enable, disable, or halt - * - * When in the 'enable' state the card operates as normal. - * When in the 'disable' state, the card enters into a low power mode. - * When in the 'halt' state, the card is shut down and must be fully - * restarted to come back on. - */ -int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) -{ - struct iwl_host_cmd cmd = { - .id = REPLY_CARD_STATE_CMD, - .len = sizeof(u32), - .data = &flags, - .flags = meta_flag, - }; - - return iwl_send_cmd(priv, &cmd); -} - void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { @@ -1749,6 +1401,7 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, const struct ieee80211_tx_queue_params *params) { struct iwl_priv *priv = hw->priv; + struct iwl_rxon_context *ctx; unsigned long flags; int q; @@ -1768,13 +1421,21 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, spin_lock_irqsave(&priv->lock, flags); - priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); - priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); - priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; - priv->qos_data.def_qos_parm.ac[q].edca_txop = - cpu_to_le16((params->txop * 32)); + /* + * MULTI-FIXME + * This may need to be done per interface in nl80211/cfg80211/mac80211. + */ + for_each_context(priv, ctx) { + ctx->qos_data.def_qos_parm.ac[q].cw_min = + cpu_to_le16(params->cw_min); + ctx->qos_data.def_qos_parm.ac[q].cw_max = + cpu_to_le16(params->cw_max); + ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; + ctx->qos_data.def_qos_parm.ac[q].edca_txop = + cpu_to_le16((params->txop * 32)); - priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; + ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; + } spin_unlock_irqrestore(&priv->lock, flags); @@ -1783,21 +1444,30 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, } EXPORT_SYMBOL(iwl_mac_conf_tx); +int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw) +{ + struct iwl_priv *priv = hw->priv; + + return priv->ibss_manager == IWL_IBSS_MANAGER; +} +EXPORT_SYMBOL_GPL(iwl_mac_tx_last_beacon); + static void iwl_ht_conf(struct iwl_priv *priv, struct ieee80211_vif *vif) { struct iwl_ht_config *ht_conf = &priv->current_ht_config; struct ieee80211_sta *sta; struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); IWL_DEBUG_MAC80211(priv, "enter:\n"); - if (!ht_conf->is_ht) + if (!ctx->ht.enabled) return; - ht_conf->ht_protection = + ctx->ht.protection = bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; - ht_conf->non_GF_STA_present = + ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); ht_conf->single_chain_sufficient = false; @@ -1841,18 +1511,63 @@ static void iwl_ht_conf(struct iwl_priv *priv, IWL_DEBUG_MAC80211(priv, "leave\n"); } -static inline void iwl_set_no_assoc(struct iwl_priv *priv) +static inline void iwl_set_no_assoc(struct iwl_priv *priv, + struct ieee80211_vif *vif) { + struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); + iwl_led_disassociate(priv); /* * inform the ucode that there is no longer an * association and that no more packets should be * sent */ - priv->staging_rxon.filter_flags &= - ~RXON_FILTER_ASSOC_MSK; - priv->staging_rxon.assoc_id = 0; - iwlcore_commit_rxon(priv); + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + ctx->staging.assoc_id = 0; + iwlcore_commit_rxon(priv, ctx); +} + +static void iwlcore_beacon_update(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct iwl_priv *priv = hw->priv; + unsigned long flags; + __le64 timestamp; + struct sk_buff *skb = ieee80211_beacon_get(hw, vif); + + if (!skb) + return; + + IWL_DEBUG_ASSOC(priv, "enter\n"); + + lockdep_assert_held(&priv->mutex); + + if (!priv->beacon_ctx) { + IWL_ERR(priv, "update beacon but no beacon context!\n"); + dev_kfree_skb(skb); + return; + } + + spin_lock_irqsave(&priv->lock, flags); + + if (priv->beacon_skb) + dev_kfree_skb(priv->beacon_skb); + + priv->beacon_skb = skb; + + timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; + priv->timestamp = le64_to_cpu(timestamp); + + IWL_DEBUG_ASSOC(priv, "leave\n"); + + spin_unlock_irqrestore(&priv->lock, flags); + + if (!iwl_is_ready_rf(priv)) { + IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); + return; + } + + priv->cfg->ops->lib->post_associate(priv, priv->beacon_ctx->vif); } void iwl_bss_info_changed(struct ieee80211_hw *hw, @@ -1861,6 +1576,7 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, u32 changes) { struct iwl_priv *priv = hw->priv; + struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); int ret; IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); @@ -1870,15 +1586,35 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, mutex_lock(&priv->mutex); - if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_AP) { - dev_kfree_skb(priv->ibss_beacon); - priv->ibss_beacon = ieee80211_beacon_get(hw, vif); + if (changes & BSS_CHANGED_QOS) { + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + ctx->qos_data.qos_active = bss_conf->qos; + iwl_update_qos(priv, ctx); + spin_unlock_irqrestore(&priv->lock, flags); } - if (changes & BSS_CHANGED_BEACON_INT) { - /* TODO: in AP mode, do something to make this take effect */ + if (changes & BSS_CHANGED_BEACON_ENABLED) { + /* + * the add_interface code must make sure we only ever + * have a single interface that could be beaconing at + * any time. + */ + if (vif->bss_conf.enable_beacon) + priv->beacon_ctx = ctx; + else + priv->beacon_ctx = NULL; } + if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_AP) { + dev_kfree_skb(priv->beacon_skb); + priv->beacon_skb = ieee80211_beacon_get(hw, vif); + } + + if (changes & BSS_CHANGED_BEACON_INT && vif->type == NL80211_IFTYPE_AP) + iwl_send_rxon_timing(priv, ctx); + if (changes & BSS_CHANGED_BSSID) { IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid); @@ -1896,13 +1632,13 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, /* mac80211 only sets assoc when in STATION mode */ if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) { - memcpy(priv->staging_rxon.bssid_addr, + memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); /* currently needed in a few places */ memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); } else { - priv->staging_rxon.filter_flags &= + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; } @@ -1913,29 +1649,28 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, * mac80211 decides to do both changes at once because * it will invoke post_associate. */ - if (vif->type == NL80211_IFTYPE_ADHOC && - changes & BSS_CHANGED_BEACON) { - struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); - - if (beacon) - iwl_mac_beacon_update(hw, beacon); - } + if (vif->type == NL80211_IFTYPE_ADHOC && changes & BSS_CHANGED_BEACON) + iwlcore_beacon_update(hw, vif); if (changes & BSS_CHANGED_ERP_PREAMBLE) { IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", bss_conf->use_short_preamble); if (bss_conf->use_short_preamble) - priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; + ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; else - priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; + ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; } if (changes & BSS_CHANGED_ERP_CTS_PROT) { IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot); if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) - priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; + ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; + else + ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; + if (bss_conf->use_cts_prot) + ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; else - priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; + ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; } if (changes & BSS_CHANGED_BASIC_RATES) { @@ -1945,12 +1680,12 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, * like this here: * if (A-band) - priv->staging_rxon.ofdm_basic_rates = + ctx->staging.ofdm_basic_rates = bss_conf->basic_rates; else - priv->staging_rxon.ofdm_basic_rates = + ctx->staging.ofdm_basic_rates = bss_conf->basic_rates >> 4; - priv->staging_rxon.cck_basic_rates = + ctx->staging.cck_basic_rates = bss_conf->basic_rates & 0xF; */ } @@ -1959,7 +1694,7 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, iwl_ht_conf(priv, vif); if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv); + priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); } if (changes & BSS_CHANGED_ASSOC) { @@ -1972,29 +1707,30 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, if (!iwl_is_rfkill(priv)) priv->cfg->ops->lib->post_associate(priv, vif); } else - iwl_set_no_assoc(priv); + iwl_set_no_assoc(priv, vif); } - if (changes && iwl_is_associated(priv) && bss_conf->aid) { + if (changes && iwl_is_associated_ctx(ctx) && bss_conf->aid) { IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n", changes); - ret = iwl_send_rxon_assoc(priv); + ret = iwl_send_rxon_assoc(priv, ctx); if (!ret) { /* Sync active_rxon with latest change. */ - memcpy((void *)&priv->active_rxon, - &priv->staging_rxon, + memcpy((void *)&ctx->active, + &ctx->staging, sizeof(struct iwl_rxon_cmd)); } } if (changes & BSS_CHANGED_BEACON_ENABLED) { if (vif->bss_conf.enable_beacon) { - memcpy(priv->staging_rxon.bssid_addr, + memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); + iwl_led_associate(priv); iwlcore_config_ap(priv, vif); } else - iwl_set_no_assoc(priv); + iwl_set_no_assoc(priv, vif); } if (changes & BSS_CHANGED_IBSS) { @@ -2006,90 +1742,108 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, bss_conf->bssid); } - mutex_unlock(&priv->mutex); - - IWL_DEBUG_MAC80211(priv, "leave\n"); -} -EXPORT_SYMBOL(iwl_bss_info_changed); - -int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) -{ - struct iwl_priv *priv = hw->priv; - unsigned long flags; - __le64 timestamp; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (!iwl_is_ready_rf(priv)) { - IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); - return -EIO; + if (changes & BSS_CHANGED_IDLE && + priv->cfg->ops->hcmd->set_pan_params) { + if (priv->cfg->ops->hcmd->set_pan_params(priv)) + IWL_ERR(priv, "failed to update PAN params\n"); } - spin_lock_irqsave(&priv->lock, flags); - - if (priv->ibss_beacon) - dev_kfree_skb(priv->ibss_beacon); - - priv->ibss_beacon = skb; - - timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; - priv->timestamp = le64_to_cpu(timestamp); + mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); - spin_unlock_irqrestore(&priv->lock, flags); - - priv->cfg->ops->lib->post_associate(priv, priv->vif); - - return 0; } -EXPORT_SYMBOL(iwl_mac_beacon_update); +EXPORT_SYMBOL(iwl_bss_info_changed); static int iwl_set_mode(struct iwl_priv *priv, struct ieee80211_vif *vif) { - iwl_connection_init_rx_config(priv, vif); + struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv); + iwl_connection_init_rx_config(priv, ctx); - memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); + if (priv->cfg->ops->hcmd->set_rxon_chain) + priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - return iwlcore_commit_rxon(priv); + return iwlcore_commit_rxon(priv, ctx); } int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct iwl_priv *priv = hw->priv; + struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; + struct iwl_rxon_context *tmp, *ctx = NULL; int err = 0; - IWL_DEBUG_MAC80211(priv, "enter: type %d\n", vif->type); + IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", + vif->type, vif->addr); mutex_lock(&priv->mutex); - if (WARN_ON(!iwl_is_ready_rf(priv))) { + if (!iwl_is_ready_rf(priv)) { + IWL_WARN(priv, "Try to add interface when device not ready\n"); err = -EINVAL; goto out; } - if (priv->vif) { - IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n"); + for_each_context(priv, tmp) { + u32 possible_modes = + tmp->interface_modes | tmp->exclusive_interface_modes; + + if (tmp->vif) { + /* check if this busy context is exclusive */ + if (tmp->exclusive_interface_modes & + BIT(tmp->vif->type)) { + err = -EINVAL; + goto out; + } + continue; + } + + if (!(possible_modes & BIT(vif->type))) + continue; + + /* have maybe usable context w/o interface */ + ctx = tmp; + break; + } + + if (!ctx) { err = -EOPNOTSUPP; goto out; } - priv->vif = vif; + vif_priv->ctx = ctx; + ctx->vif = vif; + /* + * This variable will be correct only when there's just + * a single context, but all code using it is for hardware + * that supports only one context. + */ priv->iw_mode = vif->type; - IWL_DEBUG_MAC80211(priv, "Set %pM\n", vif->addr); - memcpy(priv->mac_addr, vif->addr, ETH_ALEN); + ctx->is_active = true; err = iwl_set_mode(priv, vif); - if (err) + if (err) { + if (!ctx->always_active) + ctx->is_active = false; goto out_err; + } + + if (priv->cfg->bt_params && + priv->cfg->bt_params->advanced_bt_coexist && + vif->type == NL80211_IFTYPE_ADHOC) { + /* + * pretend to have high BT traffic as long as we + * are operating in IBSS mode, as this will cause + * the rate scaling etc. to behave as intended. + */ + priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; + } goto out; out_err: - priv->vif = NULL; + ctx->vif = NULL; priv->iw_mode = NL80211_IFTYPE_STATION; out: mutex_unlock(&priv->mutex); @@ -2103,20 +1857,35 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct iwl_priv *priv = hw->priv; + struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); - if (iwl_is_ready_rf(priv)) { - iwl_scan_cancel_timeout(priv, 100); - priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwlcore_commit_rxon(priv); - } - if (priv->vif == vif) { - priv->vif = NULL; - memset(priv->bssid, 0, ETH_ALEN); + WARN_ON(ctx->vif != vif); + ctx->vif = NULL; + + if (priv->scan_vif == vif) { + iwl_scan_cancel_timeout(priv, 200); + iwl_force_scan_end(priv); } + iwl_set_mode(priv, vif); + + if (!ctx->always_active) + ctx->is_active = false; + + /* + * When removing the IBSS interface, overwrite the + * BT traffic load with the stored one from the last + * notification, if any. If this is a device that + * doesn't implement this, this has no effect since + * both values are the same and zero. + */ + if (vif->type == NL80211_IFTYPE_ADHOC) + priv->bt_traffic_load = priv->notif_bt_traffic_load; + + memset(priv->bssid, 0, ETH_ALEN); mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); @@ -2132,7 +1901,9 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) struct iwl_priv *priv = hw->priv; const struct iwl_channel_info *ch_info; struct ieee80211_conf *conf = &hw->conf; + struct ieee80211_channel *channel = conf->channel; struct iwl_ht_config *ht_conf = &priv->current_ht_config; + struct iwl_rxon_context *ctx; unsigned long flags = 0; int ret = 0; u16 ch; @@ -2141,7 +1912,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n", - conf->channel->hw_value, changed); + channel->hw_value, changed); if (unlikely(!priv->cfg->mod_params->disable_hw_scan && test_bit(STATUS_SCANNING, &priv->status))) { @@ -2162,7 +1933,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) * configured. */ if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv); + for_each_context(priv, ctx) + priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); } /* during scanning mac80211 will delay channel setting until @@ -2172,8 +1944,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) if (scan_active) goto set_ch_out; - ch = ieee80211_frequency_to_channel(conf->channel->center_freq); - ch_info = iwl_get_channel_info(priv, conf->channel->band, ch); + ch = channel->hw_value; + ch_info = iwl_get_channel_info(priv, channel->band, ch); if (!is_channel_valid(ch_info)) { IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); ret = -EINVAL; @@ -2182,55 +1954,50 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) spin_lock_irqsave(&priv->lock, flags); - /* Configure HT40 channels */ - ht_conf->is_ht = conf_is_ht(conf); - if (ht_conf->is_ht) { - if (conf_is_ht40_minus(conf)) { - ht_conf->extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_BELOW; - ht_conf->is_40mhz = true; - } else if (conf_is_ht40_plus(conf)) { - ht_conf->extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_ABOVE; - ht_conf->is_40mhz = true; - } else { - ht_conf->extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_NONE; - ht_conf->is_40mhz = false; - } - } else - ht_conf->is_40mhz = false; - /* Default to no protection. Protection mode will later be set - * from BSS config in iwl_ht_conf */ - ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; - - /* if we are switching from ht to 2.4 clear flags - * from any ht related info since 2.4 does not - * support ht */ - if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) - priv->staging_rxon.flags = 0; - - iwl_set_rxon_channel(priv, conf->channel); - iwl_set_rxon_ht(priv, ht_conf); + for_each_context(priv, ctx) { + /* Configure HT40 channels */ + ctx->ht.enabled = conf_is_ht(conf); + if (ctx->ht.enabled) { + if (conf_is_ht40_minus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_BELOW; + ctx->ht.is_40mhz = true; + } else if (conf_is_ht40_plus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + ctx->ht.is_40mhz = true; + } else { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_NONE; + ctx->ht.is_40mhz = false; + } + } else + ctx->ht.is_40mhz = false; - iwl_set_flags_for_band(priv, conf->channel->band, priv->vif); - spin_unlock_irqrestore(&priv->lock, flags); - if (iwl_is_associated(priv) && - (le16_to_cpu(priv->active_rxon.channel) != ch) && - priv->cfg->ops->lib->set_channel_switch) { - iwl_set_rate(priv); /* - * at this point, staging_rxon has the - * configuration for channel switch + * Default to no protection. Protection mode will + * later be set from BSS config in iwl_ht_conf */ - ret = priv->cfg->ops->lib->set_channel_switch(priv, - ch); - if (!ret) { - iwl_print_rx_config_cmd(priv); - goto out; - } - priv->switch_rxon.switch_in_progress = false; + ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; + + /* if we are switching from ht to 2.4 clear flags + * from any ht related info since 2.4 does not + * support ht */ + if ((le16_to_cpu(ctx->staging.channel) != ch)) + ctx->staging.flags = 0; + + iwl_set_rxon_channel(priv, channel, ctx); + iwl_set_rxon_ht(priv, ht_conf); + + iwl_set_flags_for_band(priv, ctx, channel->band, + ctx->vif); } + + spin_unlock_irqrestore(&priv->lock, flags); + + if (priv->cfg->ops->lib->update_bcast_stations) + ret = priv->cfg->ops->lib->update_bcast_stations(priv); + set_ch_out: /* The list of supported rates and rate mask can be different * for each band; since the band may have changed, reset @@ -2252,15 +2019,6 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) iwl_set_tx_power(priv, conf->power_level, false); } - if (changed & IEEE80211_CONF_CHANGE_QOS) { - bool qos_active = !!(conf->flags & IEEE80211_CONF_QOS); - - spin_lock_irqsave(&priv->lock, flags); - priv->qos_data.qos_active = qos_active; - iwl_update_qos(priv); - spin_unlock_irqrestore(&priv->lock, flags); - } - if (!iwl_is_ready(priv)) { IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); goto out; @@ -2269,12 +2027,13 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) if (scan_active) goto out; - if (memcmp(&priv->active_rxon, - &priv->staging_rxon, sizeof(priv->staging_rxon))) - iwlcore_commit_rxon(priv); - else - IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n"); - + for_each_context(priv, ctx) { + if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging))) + iwlcore_commit_rxon(priv, ctx); + else + IWL_DEBUG_INFO(priv, + "Not re-sending same RXON configuration.\n"); + } out: IWL_DEBUG_MAC80211(priv, "leave\n"); @@ -2287,6 +2046,8 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw) { struct iwl_priv *priv = hw->priv; unsigned long flags; + /* IBSS can only be the IWL_RXON_CTX_BSS context */ + struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "enter\n"); @@ -2298,15 +2059,16 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw) spin_lock_irqsave(&priv->lock, flags); /* new association get rid of ibss beacon skb */ - if (priv->ibss_beacon) - dev_kfree_skb(priv->ibss_beacon); + if (priv->beacon_skb) + dev_kfree_skb(priv->beacon_skb); - priv->ibss_beacon = NULL; + priv->beacon_skb = NULL; priv->timestamp = 0; spin_unlock_irqrestore(&priv->lock, flags); + iwl_scan_cancel_timeout(priv, 100); if (!iwl_is_ready_rf(priv)) { IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); mutex_unlock(&priv->mutex); @@ -2316,9 +2078,8 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw) /* we are restarting association process * clear RXON_FILTER_ASSOC_MSK bit */ - iwl_scan_cancel_timeout(priv, 100); - priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - iwlcore_commit_rxon(priv); + ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + iwlcore_commit_rxon(priv, ctx); iwl_set_rate(priv); @@ -2332,7 +2093,8 @@ int iwl_alloc_txq_mem(struct iwl_priv *priv) { if (!priv->txq) priv->txq = kzalloc( - sizeof(struct iwl_tx_queue) * priv->cfg->num_of_queues, + sizeof(struct iwl_tx_queue) * + priv->cfg->base_params->num_of_queues, GFP_KERNEL); if (!priv->txq) { IWL_ERR(priv, "Not enough memory for txq\n"); @@ -2588,146 +2350,12 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len) EXPORT_SYMBOL(iwl_update_stats); #endif -const static char *get_csr_string(int cmd) -{ - switch (cmd) { - IWL_CMD(CSR_HW_IF_CONFIG_REG); - IWL_CMD(CSR_INT_COALESCING); - IWL_CMD(CSR_INT); - IWL_CMD(CSR_INT_MASK); - IWL_CMD(CSR_FH_INT_STATUS); - IWL_CMD(CSR_GPIO_IN); - IWL_CMD(CSR_RESET); - IWL_CMD(CSR_GP_CNTRL); - IWL_CMD(CSR_HW_REV); - IWL_CMD(CSR_EEPROM_REG); - IWL_CMD(CSR_EEPROM_GP); - IWL_CMD(CSR_OTP_GP_REG); - IWL_CMD(CSR_GIO_REG); - IWL_CMD(CSR_GP_UCODE_REG); - IWL_CMD(CSR_GP_DRIVER_REG); - IWL_CMD(CSR_UCODE_DRV_GP1); - IWL_CMD(CSR_UCODE_DRV_GP2); - IWL_CMD(CSR_LED_REG); - IWL_CMD(CSR_DRAM_INT_TBL_REG); - IWL_CMD(CSR_GIO_CHICKEN_BITS); - IWL_CMD(CSR_ANA_PLL_CFG); - IWL_CMD(CSR_HW_REV_WA_REG); - IWL_CMD(CSR_DBG_HPET_MEM_REG); - default: - return "UNKNOWN"; - - } -} - -void iwl_dump_csr(struct iwl_priv *priv) -{ - int i; - u32 csr_tbl[] = { - CSR_HW_IF_CONFIG_REG, - CSR_INT_COALESCING, - CSR_INT, - CSR_INT_MASK, - CSR_FH_INT_STATUS, - CSR_GPIO_IN, - CSR_RESET, - CSR_GP_CNTRL, - CSR_HW_REV, - CSR_EEPROM_REG, - CSR_EEPROM_GP, - CSR_OTP_GP_REG, - CSR_GIO_REG, - CSR_GP_UCODE_REG, - CSR_GP_DRIVER_REG, - CSR_UCODE_DRV_GP1, - CSR_UCODE_DRV_GP2, - CSR_LED_REG, - CSR_DRAM_INT_TBL_REG, - CSR_GIO_CHICKEN_BITS, - CSR_ANA_PLL_CFG, - CSR_HW_REV_WA_REG, - CSR_DBG_HPET_MEM_REG - }; - IWL_ERR(priv, "CSR values:\n"); - IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is " - "CSR_INT_PERIODIC_REG)\n"); - for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) { - IWL_ERR(priv, " %25s: 0X%08x\n", - get_csr_string(csr_tbl[i]), - iwl_read32(priv, csr_tbl[i])); - } -} -EXPORT_SYMBOL(iwl_dump_csr); - -const static char *get_fh_string(int cmd) -{ - switch (cmd) { - IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); - IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); - IWL_CMD(FH_RSCSR_CHNL0_WPTR); - IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); - IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); - IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); - IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); - IWL_CMD(FH_TSSR_TX_STATUS_REG); - IWL_CMD(FH_TSSR_TX_ERROR_REG); - default: - return "UNKNOWN"; - - } -} - -int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display) -{ - int i; -#ifdef CONFIG_IWLWIFI_DEBUG - int pos = 0; - size_t bufsz = 0; -#endif - u32 fh_tbl[] = { - FH_RSCSR_CHNL0_STTS_WPTR_REG, - FH_RSCSR_CHNL0_RBDCB_BASE_REG, - FH_RSCSR_CHNL0_WPTR, - FH_MEM_RCSR_CHNL0_CONFIG_REG, - FH_MEM_RSSR_SHARED_CTRL_REG, - FH_MEM_RSSR_RX_STATUS_REG, - FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, - FH_TSSR_TX_STATUS_REG, - FH_TSSR_TX_ERROR_REG - }; -#ifdef CONFIG_IWLWIFI_DEBUG - if (display) { - bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; - *buf = kmalloc(bufsz, GFP_KERNEL); - if (!*buf) - return -ENOMEM; - pos += scnprintf(*buf + pos, bufsz - pos, - "FH register values:\n"); - for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { - pos += scnprintf(*buf + pos, bufsz - pos, - " %34s: 0X%08x\n", - get_fh_string(fh_tbl[i]), - iwl_read_direct32(priv, fh_tbl[i])); - } - return pos; - } -#endif - IWL_ERR(priv, "FH register values:\n"); - for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { - IWL_ERR(priv, " %34s: 0X%08x\n", - get_fh_string(fh_tbl[i]), - iwl_read_direct32(priv, fh_tbl[i])); - } - return 0; -} -EXPORT_SYMBOL(iwl_dump_fh); - static void iwl_force_rf_reset(struct iwl_priv *priv) { if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; - if (!iwl_is_associated(priv)) { + if (!iwl_is_any_associated(priv)) { IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n"); return; } @@ -2745,7 +2373,7 @@ static void iwl_force_rf_reset(struct iwl_priv *priv) } -int iwl_force_reset(struct iwl_priv *priv, int mode) +int iwl_force_reset(struct iwl_priv *priv, int mode, bool external) { struct iwl_force_reset *force_reset; @@ -2758,12 +2386,14 @@ int iwl_force_reset(struct iwl_priv *priv, int mode) } force_reset = &priv->force_reset[mode]; force_reset->reset_request_count++; - if (force_reset->last_force_reset_jiffies && - time_after(force_reset->last_force_reset_jiffies + - force_reset->reset_duration, jiffies)) { - IWL_DEBUG_INFO(priv, "force reset rejected\n"); - force_reset->reset_reject_count++; - return -EAGAIN; + if (!external) { + if (force_reset->last_force_reset_jiffies && + time_after(force_reset->last_force_reset_jiffies + + force_reset->reset_duration, jiffies)) { + IWL_DEBUG_INFO(priv, "force reset rejected\n"); + force_reset->reset_reject_count++; + return -EAGAIN; + } } force_reset->reset_success_count++; force_reset->last_force_reset_jiffies = jiffies; @@ -2773,6 +2403,19 @@ int iwl_force_reset(struct iwl_priv *priv, int mode) iwl_force_rf_reset(priv); break; case IWL_FW_RESET: + /* + * if the request is from external(ex: debugfs), + * then always perform the request in regardless the module + * parameter setting + * if the request is from internal (uCode error or driver + * detect failure), then fw_restart module parameter + * need to be check before performing firmware reload + */ + if (!external && !priv->cfg->mod_params->restart_fw) { + IWL_DEBUG_INFO(priv, "Cancel firmware reload based on " + "module parameter setting\n"); + break; + } IWL_ERR(priv, "On demand firmware reload\n"); /* Set the FW error flag -- cleared on iwl_down */ set_bit(STATUS_FW_ERROR, &priv->status); @@ -2787,7 +2430,6 @@ int iwl_force_reset(struct iwl_priv *priv, int mode) } return 0; } -EXPORT_SYMBOL(iwl_force_reset); /** * iwl_bg_monitor_recover - Timer callback to check for stuck queue and recover @@ -2823,29 +2465,31 @@ static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt) txq = &priv->txq[cnt]; q = &txq->q; /* queue is empty, skip */ - if (q->read_ptr != q->write_ptr) { - if (q->read_ptr == q->last_read_ptr) { - /* a queue has not been read from last time */ - if (q->repeat_same_read_ptr > MAX_REPEAT) { - IWL_ERR(priv, - "queue %d stuck %d time. Fw reload.\n", - q->id, q->repeat_same_read_ptr); - q->repeat_same_read_ptr = 0; - iwl_force_reset(priv, IWL_FW_RESET); - } else { - q->repeat_same_read_ptr++; - IWL_DEBUG_RADIO(priv, - "queue %d, not read %d time\n", - q->id, - q->repeat_same_read_ptr); - mod_timer(&priv->monitor_recover, jiffies + - msecs_to_jiffies(IWL_ONE_HUNDRED_MSECS)); - } - return 1; - } else { - q->last_read_ptr = q->read_ptr; + if (q->read_ptr == q->write_ptr) + return 0; + + if (q->read_ptr == q->last_read_ptr) { + /* a queue has not been read from last time */ + if (q->repeat_same_read_ptr > MAX_REPEAT) { + IWL_ERR(priv, + "queue %d stuck %d time. Fw reload.\n", + q->id, q->repeat_same_read_ptr); q->repeat_same_read_ptr = 0; + iwl_force_reset(priv, IWL_FW_RESET, false); + } else { + q->repeat_same_read_ptr++; + IWL_DEBUG_RADIO(priv, + "queue %d, not read %d time\n", + q->id, + q->repeat_same_read_ptr); + mod_timer(&priv->monitor_recover, + jiffies + msecs_to_jiffies( + IWL_ONE_HUNDRED_MSECS)); + return 1; } + } else { + q->last_read_ptr = q->read_ptr; + q->repeat_same_read_ptr = 0; } return 0; } @@ -2859,28 +2503,85 @@ void iwl_bg_monitor_recover(unsigned long data) return; /* monitor and check for stuck cmd queue */ - if (iwl_check_stuck_queue(priv, IWL_CMD_QUEUE_NUM)) + if (iwl_check_stuck_queue(priv, priv->cmd_queue)) return; /* monitor and check for other stuck queues */ - if (iwl_is_associated(priv)) { + if (iwl_is_any_associated(priv)) { for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) { /* skip as we already checked the command queue */ - if (cnt == IWL_CMD_QUEUE_NUM) + if (cnt == priv->cmd_queue) continue; if (iwl_check_stuck_queue(priv, cnt)) return; } } - /* - * Reschedule the timer to occur in - * priv->cfg->monitor_recover_period - */ - mod_timer(&priv->monitor_recover, - jiffies + msecs_to_jiffies(priv->cfg->monitor_recover_period)); + if (priv->cfg->base_params->monitor_recover_period) { + /* + * Reschedule the timer to occur in + * priv->cfg->base_params->monitor_recover_period + */ + mod_timer(&priv->monitor_recover, jiffies + msecs_to_jiffies( + priv->cfg->base_params->monitor_recover_period)); + } } EXPORT_SYMBOL(iwl_bg_monitor_recover); + +/* + * extended beacon time format + * time in usec will be changed into a 32-bit value in extended:internal format + * the extended part is the beacon counts + * the internal part is the time in usec within one beacon interval + */ +u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval) +{ + u32 quot; + u32 rem; + u32 interval = beacon_interval * TIME_UNIT; + + if (!interval || !usec) + return 0; + + quot = (usec / interval) & + (iwl_beacon_time_mask_high(priv, + priv->hw_params.beacon_time_tsf_bits) >> + priv->hw_params.beacon_time_tsf_bits); + rem = (usec % interval) & iwl_beacon_time_mask_low(priv, + priv->hw_params.beacon_time_tsf_bits); + + return (quot << priv->hw_params.beacon_time_tsf_bits) + rem; +} +EXPORT_SYMBOL(iwl_usecs_to_beacons); + +/* base is usually what we get from ucode with each received frame, + * the same as HW timer counter counting down + */ +__le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base, + u32 addon, u32 beacon_interval) +{ + u32 base_low = base & iwl_beacon_time_mask_low(priv, + priv->hw_params.beacon_time_tsf_bits); + u32 addon_low = addon & iwl_beacon_time_mask_low(priv, + priv->hw_params.beacon_time_tsf_bits); + u32 interval = beacon_interval * TIME_UNIT; + u32 res = (base & iwl_beacon_time_mask_high(priv, + priv->hw_params.beacon_time_tsf_bits)) + + (addon & iwl_beacon_time_mask_high(priv, + priv->hw_params.beacon_time_tsf_bits)); + + if (base_low > addon_low) + res += base_low - addon_low; + else if (base_low < addon_low) { + res += interval + base_low - addon_low; + res += (1 << priv->hw_params.beacon_time_tsf_bits); + } else + res += (1 << priv->hw_params.beacon_time_tsf_bits); + + return cpu_to_le32(res); +} +EXPORT_SYMBOL(iwl_add_beacon_time); + #ifdef CONFIG_PM int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) @@ -2894,7 +2595,7 @@ int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) * it will not call apm_ops.stop() to stop the DMA operation. * Calling apm_ops.stop here to make sure we stop the DMA. */ - priv->cfg->ops->lib->apm_ops.stop(priv); + iwl_apm_stop(priv); pci_save_state(pdev); pci_disable_device(pdev); @@ -2908,6 +2609,7 @@ int iwl_pci_resume(struct pci_dev *pdev) { struct iwl_priv *priv = pci_get_drvdata(pdev); int ret; + bool hw_rfkill = false; /* * We disable the RETRY_TIMEOUT register (0x41) to keep @@ -2922,6 +2624,17 @@ int iwl_pci_resume(struct pci_dev *pdev) pci_restore_state(pdev); iwl_enable_interrupts(priv); + if (!(iwl_read32(priv, CSR_GP_CNTRL) & + CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) + hw_rfkill = true; + + if (hw_rfkill) + set_bit(STATUS_RF_KILL_HW, &priv->status); + else + clear_bit(STATUS_RF_KILL_HW, &priv->status); + + wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rfkill); + return 0; } EXPORT_SYMBOL(iwl_pci_resume); |