diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 303 |
1 files changed, 218 insertions, 85 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 61716ba9042..eb74a40a62e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -85,6 +85,63 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { }; EXPORT_SYMBOL(iwl_rates); +/** + * translate ucode response to mac80211 tx status control values + */ +void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, + struct ieee80211_tx_info *control) +{ + int rate_index; + + control->antenna_sel_tx = + ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); + if (rate_n_flags & RATE_MCS_HT_MSK) + control->flags |= IEEE80211_TX_CTL_OFDM_HT; + if (rate_n_flags & RATE_MCS_GF_MSK) + control->flags |= IEEE80211_TX_CTL_GREEN_FIELD; + if (rate_n_flags & RATE_MCS_FAT_MSK) + control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH; + if (rate_n_flags & RATE_MCS_DUP_MSK) + control->flags |= IEEE80211_TX_CTL_DUP_DATA; + if (rate_n_flags & RATE_MCS_SGI_MSK) + control->flags |= IEEE80211_TX_CTL_SHORT_GI; + rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); + if (control->band == IEEE80211_BAND_5GHZ) + rate_index -= IWL_FIRST_OFDM_RATE; + control->tx_rate_idx = rate_index; +} +EXPORT_SYMBOL(iwl_hwrate_to_tx_control); + +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_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); + + const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; EXPORT_SYMBOL(iwl_bcast_addr); @@ -321,7 +378,6 @@ void iwl_reset_qos(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_reset_qos); -#ifdef CONFIG_IWL4965_HT #define MAX_BIT_RATE_40_MHZ 0x96; /* 150 Mbps */ #define MAX_BIT_RATE_20_MHZ 0x48; /* 72 Mbps */ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, @@ -374,13 +430,6 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, ht_info->supp_mcs_set[12] |= ((tx_chains_num - 1) << 2); } } -#else -static inline void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, - struct ieee80211_ht_info *ht_info, - enum ieee80211_band band) -{ -} -#endif /* CONFIG_IWL4965_HT */ static void iwlcore_init_hw_rates(struct iwl_priv *priv, struct ieee80211_rate *rates) @@ -486,28 +535,10 @@ static int iwlcore_init_geos(struct iwl_priv *priv) if (ch->flags & EEPROM_CHANNEL_RADAR) geo_ch->flags |= IEEE80211_CHAN_RADAR; - switch (ch->fat_extension_channel) { - case HT_IE_EXT_CHANNEL_ABOVE: - /* only above is allowed, disable below */ - geo_ch->flags |= IEEE80211_CHAN_NO_FAT_BELOW; - break; - case HT_IE_EXT_CHANNEL_BELOW: - /* only below is allowed, disable above */ - geo_ch->flags |= IEEE80211_CHAN_NO_FAT_ABOVE; - break; - case HT_IE_EXT_CHANNEL_NONE: - /* fat not allowed: disable both*/ - geo_ch->flags |= (IEEE80211_CHAN_NO_FAT_ABOVE | - IEEE80211_CHAN_NO_FAT_BELOW); - break; - case HT_IE_EXT_CHANNEL_MAX: - /* both above and below are permitted */ - break; - } + geo_ch->flags |= ch->fat_extension_channel; - if (ch->max_power_avg > priv->max_channel_txpower_limit) - priv->max_channel_txpower_limit = - ch->max_power_avg; + if (ch->max_power_avg > priv->tx_power_channel_lmt) + priv->tx_power_channel_lmt = ch->max_power_avg; } else { geo_ch->flags |= IEEE80211_CHAN_DISABLED; } @@ -515,7 +546,7 @@ static int iwlcore_init_geos(struct iwl_priv *priv) /* Save flags for reg domain usage */ geo_ch->orig_flags = geo_ch->flags; - IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n", + IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", ch->channel, geo_ch->center_freq, is_channel_a_band(ch) ? "5.2" : "2.4", geo_ch->flags & IEEE80211_CHAN_DISABLED ? @@ -553,7 +584,6 @@ static void iwlcore_free_geos(struct iwl_priv *priv) clear_bit(STATUS_GEO_CONFIGURED, &priv->status); } -#ifdef CONFIG_IWL4965_HT static u8 is_single_rx_stream(struct iwl_priv *priv) { return !priv->current_ht_config.is_ht || @@ -561,6 +591,7 @@ static u8 is_single_rx_stream(struct iwl_priv *priv) (priv->current_ht_config.supp_mcs_set[2] == 0)) || priv->ps_mode == IWL_MIMO_PS_STATIC; } + static u8 iwl_is_channel_extension(struct iwl_priv *priv, enum ieee80211_band band, u16 channel, u8 extension_chan_offset) @@ -571,12 +602,12 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv, if (!is_channel_valid(ch_info)) return 0; - if (extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE) - return 0; - - if ((ch_info->fat_extension_channel == extension_chan_offset) || - (ch_info->fat_extension_channel == HT_IE_EXT_CHANNEL_MAX)) - return 1; + if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) + return !(ch_info->fat_extension_channel & + IEEE80211_CHAN_NO_FAT_ABOVE); + else if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) + return !(ch_info->fat_extension_channel & + IEEE80211_CHAN_NO_FAT_BELOW); return 0; } @@ -588,7 +619,7 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, if ((!iwl_ht_conf->is_ht) || (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) || - (iwl_ht_conf->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE)) + (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE)) return 0; if (sta_ht_inf) { @@ -622,19 +653,18 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) IWL_DEBUG_ASSOC("control diff than current %d %d\n", le16_to_cpu(rxon->channel), ht_info->control_channel); - rxon->channel = cpu_to_le16(ht_info->control_channel); return; } /* Note: control channel is opposite of extension channel */ switch (ht_info->extension_chan_offset) { - case IWL_EXT_CHANNEL_OFFSET_ABOVE: + case IEEE80211_HT_IE_CHA_SEC_ABOVE: rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); break; - case IWL_EXT_CHANNEL_OFFSET_BELOW: + case IEEE80211_HT_IE_CHA_SEC_BELOW: rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; break; - case IWL_EXT_CHANNEL_OFFSET_NONE: + case IEEE80211_HT_IE_CHA_SEC_NONE: default: rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; break; @@ -660,13 +690,6 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) } EXPORT_SYMBOL(iwl_set_rxon_ht); -#else -static inline u8 is_single_rx_stream(struct iwl_priv *priv) -{ - return 1; -} -#endif /*CONFIG_IWL4965_HT */ - /* * Determine how many receiver/antenna chains to use. * More provides better reception via diversity. Fewer saves power. @@ -791,10 +814,8 @@ int iwl_setup_mac(struct iwl_priv *priv) IEEE80211_HW_NOISE_DBM; /* Default value; 4 EDCA QOS priorities */ hw->queues = 4; -#ifdef CONFIG_IWL4965_HT /* Enhanced value; more queues, to support 11n aggregation */ hw->ampdu_queues = 12; -#endif /* CONFIG_IWL4965_HT */ hw->conf.beacon_int = 100; @@ -853,6 +874,7 @@ int iwl_init_drv(struct iwl_priv *priv) /* Choose which receivers/antennas to use */ iwl_set_rxon_chain(priv); + iwl_init_scan_params(priv); if (priv->cfg->mod_params->enable_qos) priv->qos_data.qos_enable = 1; @@ -867,7 +889,7 @@ int iwl_init_drv(struct iwl_priv *priv) priv->rates_mask = IWL_RATES_MASK; /* If power management is turned on, default to AC mode */ priv->power_mode = IWL_POWER_AC; - priv->user_txpower_limit = IWL_DEFAULT_TX_POWER; + priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX; ret = iwl_init_channel_map(priv); if (ret) { @@ -906,6 +928,34 @@ void iwl_free_calib_results(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_free_calib_results); +int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) +{ + int ret = 0; + if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) { + IWL_WARNING("Requested user TXPOWER %d below limit.\n", + priv->tx_power_user_lmt); + return -EINVAL; + } + + if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) { + IWL_WARNING("Requested user TXPOWER %d above limit.\n", + priv->tx_power_user_lmt); + return -EINVAL; + } + + if (priv->tx_power_user_lmt != tx_power) + force = true; + + priv->tx_power_user_lmt = tx_power; + + if (force && priv->cfg->ops->lib->send_tx_power) + ret = priv->cfg->ops->lib->send_tx_power(priv); + + return ret; +} +EXPORT_SYMBOL(iwl_set_tx_power); + + void iwl_uninit_drv(struct iwl_priv *priv) { iwl_free_calib_results(priv); @@ -915,35 +965,6 @@ void iwl_uninit_drv(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_uninit_drv); -/* Low level driver call this function to update iwlcore with - * driver status. - */ -int iwlcore_low_level_notify(struct iwl_priv *priv, - enum iwlcore_card_notify notify) -{ - int ret; - switch (notify) { - case IWLCORE_INIT_EVT: - ret = iwl_rfkill_init(priv); - if (ret) - IWL_ERROR("Unable to initialize RFKILL system. " - "Ignoring error: %d\n", ret); - iwl_power_initialize(priv); - break; - case IWLCORE_START_EVT: - iwl_power_update_mode(priv, 1); - break; - case IWLCORE_STOP_EVT: - break; - case IWLCORE_REMOVE_EVT: - iwl_rfkill_unregister(priv); - break; - } - - return 0; -} -EXPORT_SYMBOL(iwlcore_low_level_notify); - int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) { u32 stat_flags = 0; @@ -1204,12 +1225,14 @@ void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, ptr += sizeof(u32); time = iwl_read_targ_mem(priv, ptr); ptr += sizeof(u32); - if (mode == 0) - IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ - else { + if (mode == 0) { + /* data, ev */ + IWL_ERROR("EVT_LOG:0x%08x:%04u\n", time, ev); + } else { data = iwl_read_targ_mem(priv, ptr); ptr += sizeof(u32); - IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); + IWL_ERROR("EVT_LOGT:%010u:0x%08x:%04u\n", + time, data, ev); } } } @@ -1272,4 +1295,114 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_dump_nic_event_log); +void iwl_rf_kill_ct_config(struct iwl_priv *priv) +{ + struct iwl_ct_kill_config 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); + + 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_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n"); + else + IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded, " + "critical temperature is %d\n", + cmd.critical_temperature_R); +} +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. + */ +static 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, + .meta.flags = meta_flag, + }; + + return iwl_send_cmd(priv, &cmd); +} + +void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv) +{ + unsigned long flags; + + if (test_bit(STATUS_RF_KILL_SW, &priv->status)) + return; + + IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO OFF\n"); + + iwl_scan_cancel(priv); + /* FIXME: This is a workaround for AP */ + if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { + spin_lock_irqsave(&priv->lock, flags); + iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, + CSR_UCODE_SW_BIT_RFKILL); + spin_unlock_irqrestore(&priv->lock, flags); + /* call the host command only if no hw rf-kill set */ + if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && + iwl_is_ready(priv)) + iwl_send_card_state(priv, + CARD_STATE_CMD_DISABLE, 0); + set_bit(STATUS_RF_KILL_SW, &priv->status); + /* make sure mac80211 stop sending Tx frame */ + if (priv->mac80211_registered) + ieee80211_stop_queues(priv->hw); + } +} +EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio); +int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv) +{ + unsigned long flags; + + if (!test_bit(STATUS_RF_KILL_SW, &priv->status)) + return 0; + + IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO ON\n"); + + spin_lock_irqsave(&priv->lock, flags); + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); + + clear_bit(STATUS_RF_KILL_SW, &priv->status); + spin_unlock_irqrestore(&priv->lock, flags); + + /* wake up ucode */ + msleep(10); + + spin_lock_irqsave(&priv->lock, flags); + iwl_read32(priv, CSR_UCODE_DRV_GP1); + if (!iwl_grab_nic_access(priv)) + iwl_release_nic_access(priv); + spin_unlock_irqrestore(&priv->lock, flags); + + if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { + IWL_DEBUG_RF_KILL("Can not turn radio back on - " + "disabled by HW switch\n"); + return 0; + } + + if (priv->is_open) + queue_work(priv->workqueue, &priv->restart); + return 1; +} +EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio); |