| /****************************************************************************** |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2008 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called LICENSE.GPL. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| *****************************************************************************/ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <net/mac80211.h> |
| |
| #include "iwl-eeprom.h" |
| #include "iwl-dev.h" /* FIXME: remove */ |
| #include "iwl-debug.h" |
| #include "iwl-core.h" |
| #include "iwl-io.h" |
| #include "iwl-rfkill.h" |
| #include "iwl-power.h" |
| #include "iwl-sta.h" |
| |
| |
| MODULE_DESCRIPTION("iwl core"); |
| MODULE_VERSION(IWLWIFI_VERSION); |
| MODULE_AUTHOR(DRV_COPYRIGHT); |
| MODULE_LICENSE("GPL"); |
| |
| #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 } |
| |
| /* |
| * 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); |
| |
| /** |
| * 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 *info) |
| { |
| int rate_index; |
| struct ieee80211_tx_rate *r = &info->control.rates[0]; |
| |
| info->antenna_sel_tx = |
| ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); |
| if (rate_n_flags & RATE_MCS_HT_MSK) |
| r->flags |= IEEE80211_TX_RC_MCS; |
| if (rate_n_flags & RATE_MCS_GF_MSK) |
| r->flags |= IEEE80211_TX_RC_GREEN_FIELD; |
| if (rate_n_flags & RATE_MCS_FAT_MSK) |
| r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
| if (rate_n_flags & RATE_MCS_DUP_MSK) |
| r->flags |= IEEE80211_TX_RC_DUP_DATA; |
| if (rate_n_flags & RATE_MCS_SGI_MSK) |
| r->flags |= IEEE80211_TX_RC_SHORT_GI; |
| rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); |
| if (info->band == IEEE80211_BAND_5GHZ) |
| rate_index -= IWL_FIRST_OFDM_RATE; |
| r->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_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; |
| } |
| |
| const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| EXPORT_SYMBOL(iwl_bcast_addr); |
| |
| |
| /* This function both allocates and initializes hw and priv. */ |
| struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, |
| struct ieee80211_ops *hw_ops) |
| { |
| struct iwl_priv *priv; |
| |
| /* mac80211 allocates memory for this device instance, including |
| * space for this driver's private structure */ |
| struct ieee80211_hw *hw = |
| ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); |
| if (hw == NULL) { |
| IWL_ERROR("Can not allocate network device\n"); |
| goto out; |
| } |
| |
| priv = hw->priv; |
| priv->hw = hw; |
| |
| out: |
| return hw; |
| } |
| 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); |
| |
| int iwl_hw_nic_init(struct iwl_priv *priv) |
| { |
| unsigned long flags; |
| struct iwl_rx_queue *rxq = &priv->rxq; |
| int ret; |
| |
| /* nic_init */ |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->cfg->ops->lib->apm_ops.init(priv); |
| iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); |
| |
| priv->cfg->ops->lib->apm_ops.config(priv); |
| |
| /* Allocate the RX queue, or reset if it is already allocated */ |
| if (!rxq->bd) { |
| ret = iwl_rx_queue_alloc(priv); |
| if (ret) { |
| IWL_ERROR("Unable to initialize Rx queue\n"); |
| return -ENOMEM; |
| } |
| } else |
| iwl_rx_queue_reset(priv, rxq); |
| |
| iwl_rx_replenish(priv); |
| |
| iwl_rx_init(priv, rxq); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| rxq->need_update = 1; |
| iwl_rx_queue_update_write_ptr(priv, rxq); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| /* Allocate and init all Tx and Command queues */ |
| ret = iwl_txq_ctx_reset(priv); |
| if (ret) |
| return ret; |
| |
| set_bit(STATUS_INIT, &priv->status); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_hw_nic_init); |
| |
| void iwl_reset_qos(struct iwl_priv *priv) |
| { |
| u16 cw_min = 15; |
| u16 cw_max = 1023; |
| u8 aifs = 2; |
| bool is_legacy = false; |
| unsigned long flags; |
| int i; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| /* QoS always active in AP and ADHOC mode |
| * In STA mode wait for association |
| */ |
| if (priv->iw_mode == NL80211_IFTYPE_ADHOC || |
| priv->iw_mode == NL80211_IFTYPE_AP) |
| priv->qos_data.qos_active = 1; |
| else |
| priv->qos_data.qos_active = 0; |
| |
| /* check for legacy mode */ |
| if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || |
| (priv->iw_mode == NL80211_IFTYPE_STATION && |
| (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { |
| cw_min = 31; |
| is_legacy = 1; |
| } |
| |
| if (priv->qos_data.qos_active) |
| aifs = 3; |
| |
| priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; |
| priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; |
| priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; |
| |
| if (priv->qos_data.qos_active) { |
| i = 1; |
| priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = 7; |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| |
| i = 2; |
| priv->qos_data.def_qos_parm.ac[i].cw_min = |
| cpu_to_le16((cw_min + 1) / 2 - 1); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = |
| cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = 2; |
| if (is_legacy) |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(6016); |
| else |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(3008); |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| |
| i = 3; |
| priv->qos_data.def_qos_parm.ac[i].cw_min = |
| cpu_to_le16((cw_min + 1) / 4 - 1); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = |
| cpu_to_le16((cw_max + 1) / 2 - 1); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = 2; |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| if (is_legacy) |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(3264); |
| else |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(1504); |
| } else { |
| for (i = 1; i < 4; i++) { |
| priv->qos_data.def_qos_parm.ac[i].cw_min = |
| cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = |
| cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| } |
| } |
| IWL_DEBUG_QOS("set QoS to default \n"); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| EXPORT_SYMBOL(iwl_reset_qos); |
| |
| #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
| #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ |
| static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, |
| struct ieee80211_sta_ht_cap *ht_info, |
| enum ieee80211_band band) |
| { |
| u16 max_bit_rate = 0; |
| u8 rx_chains_num = priv->hw_params.rx_chains_num; |
| u8 tx_chains_num = priv->hw_params.tx_chains_num; |
| |
| ht_info->cap = 0; |
| memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
| |
| ht_info->ht_supported = true; |
| |
| ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
| ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
| ht_info->cap |= (IEEE80211_HT_CAP_SM_PS & |
| (WLAN_HT_CAP_SM_PS_DISABLED << 2)); |
| |
| max_bit_rate = MAX_BIT_RATE_20_MHZ; |
| if (priv->hw_params.fat_channel & BIT(band)) { |
| ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| ht_info->cap |= IEEE80211_HT_CAP_SGI_40; |
| ht_info->mcs.rx_mask[4] = 0x01; |
| max_bit_rate = MAX_BIT_RATE_40_MHZ; |
| } |
| |
| if (priv->cfg->mod_params->amsdu_size_8K) |
| ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
| |
| ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; |
| ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; |
| |
| ht_info->mcs.rx_mask[0] = 0xFF; |
| if (rx_chains_num >= 2) |
| ht_info->mcs.rx_mask[1] = 0xFF; |
| if (rx_chains_num >= 3) |
| ht_info->mcs.rx_mask[2] = 0xFF; |
| |
| /* Highest supported Rx data rate */ |
| max_bit_rate *= rx_chains_num; |
| WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); |
| ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); |
| |
| /* Tx MCS capabilities */ |
| ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
| if (tx_chains_num != rx_chains_num) { |
| ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
| ht_info->mcs.tx_params |= ((tx_chains_num - 1) << |
| IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
| } |
| } |
| |
| static void iwlcore_init_hw_rates(struct iwl_priv *priv, |
| struct ieee80211_rate *rates) |
| { |
| int i; |
| |
| for (i = 0; i < IWL_RATE_COUNT; i++) { |
| rates[i].bitrate = iwl_rates[i].ieee * 5; |
| rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
| rates[i].hw_value_short = i; |
| rates[i].flags = 0; |
| if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { |
| /* |
| * If CCK != 1M then set short preamble rate flag. |
| */ |
| rates[i].flags |= |
| (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
| 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
| } |
| } |
| } |
| |
| /** |
| * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom |
| */ |
| static int iwlcore_init_geos(struct iwl_priv *priv) |
| { |
| struct iwl_channel_info *ch; |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_channel *channels; |
| struct ieee80211_channel *geo_ch; |
| struct ieee80211_rate *rates; |
| int i = 0; |
| |
| if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
| priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { |
| IWL_DEBUG_INFO("Geography modes already initialized.\n"); |
| set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| return 0; |
| } |
| |
| channels = kzalloc(sizeof(struct ieee80211_channel) * |
| priv->channel_count, GFP_KERNEL); |
| if (!channels) |
| return -ENOMEM; |
| |
| rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
| GFP_KERNEL); |
| if (!rates) { |
| kfree(channels); |
| return -ENOMEM; |
| } |
| |
| /* 5.2GHz channels start after the 2.4GHz channels */ |
| sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; |
| /* just OFDM */ |
| sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; |
| sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; |
| |
| if (priv->cfg->sku & IWL_SKU_N) |
| iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
| IEEE80211_BAND_5GHZ); |
| |
| sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| sband->channels = channels; |
| /* OFDM & CCK */ |
| sband->bitrates = rates; |
| sband->n_bitrates = IWL_RATE_COUNT; |
| |
| if (priv->cfg->sku & IWL_SKU_N) |
| iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
| IEEE80211_BAND_2GHZ); |
| |
| priv->ieee_channels = channels; |
| priv->ieee_rates = rates; |
| |
| iwlcore_init_hw_rates(priv, rates); |
| |
| for (i = 0; i < priv->channel_count; i++) { |
| ch = &priv->channel_info[i]; |
| |
| /* FIXME: might be removed if scan is OK */ |
| if (!is_channel_valid(ch)) |
| continue; |
| |
| if (is_channel_a_band(ch)) |
| sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| else |
| sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| |
| geo_ch = &sband->channels[sband->n_channels++]; |
| |
| geo_ch->center_freq = |
| ieee80211_channel_to_frequency(ch->channel); |
| geo_ch->max_power = ch->max_power_avg; |
| geo_ch->max_antenna_gain = 0xff; |
| geo_ch->hw_value = ch->channel; |
| |
| if (is_channel_valid(ch)) { |
| if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
| geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; |
| |
| if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
| geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; |
| |
| if (ch->flags & EEPROM_CHANNEL_RADAR) |
| geo_ch->flags |= IEEE80211_CHAN_RADAR; |
| |
| geo_ch->flags |= ch->fat_extension_channel; |
| |
| 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; |
| } |
| |
| /* Save flags for reg domain usage */ |
| geo_ch->orig_flags = geo_ch->flags; |
| |
| 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 ? |
| "restricted" : "valid", |
| geo_ch->flags); |
| } |
| |
| if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
| priv->cfg->sku & IWL_SKU_A) { |
| printk(KERN_INFO DRV_NAME |
| ": Incorrectly detected BG card as ABG. Please send " |
| "your PCI ID 0x%04X:0x%04X to maintainer.\n", |
| priv->pci_dev->device, priv->pci_dev->subsystem_device); |
| priv->cfg->sku &= ~IWL_SKU_A; |
| } |
| |
| printk(KERN_INFO DRV_NAME |
| ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", |
| priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
| priv->bands[IEEE80211_BAND_5GHZ].n_channels); |
| |
| |
| set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| |
| return 0; |
| } |
| |
| /* |
| * iwlcore_free_geos - undo allocations in iwlcore_init_geos |
| */ |
| static void iwlcore_free_geos(struct iwl_priv *priv) |
| { |
| kfree(priv->ieee_channels); |
| kfree(priv->ieee_rates); |
| clear_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| } |
| |
| static bool is_single_rx_stream(struct iwl_priv *priv) |
| { |
| return !priv->current_ht_config.is_ht || |
| ((priv->current_ht_config.mcs.rx_mask[1] == 0) && |
| (priv->current_ht_config.mcs.rx_mask[2] == 0)); |
| } |
| |
| static u8 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; |
| |
| if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) |
| return !(ch_info->fat_extension_channel & |
| IEEE80211_CHAN_NO_FAT_ABOVE); |
| else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
| return !(ch_info->fat_extension_channel & |
| IEEE80211_CHAN_NO_FAT_BELOW); |
| |
| return 0; |
| } |
| |
| u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, |
| struct ieee80211_sta_ht_cap *sta_ht_inf) |
| { |
| struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; |
| |
| if ((!iwl_ht_conf->is_ht) || |
| (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) || |
| (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE)) |
| return 0; |
| |
| if (sta_ht_inf) { |
| if ((!sta_ht_inf->ht_supported) || |
| (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))) |
| return 0; |
| } |
| |
| return iwl_is_channel_extension(priv, priv->band, |
| le16_to_cpu(priv->staging_rxon.channel), |
| iwl_ht_conf->extension_chan_offset); |
| } |
| EXPORT_SYMBOL(iwl_is_fat_tx_allowed); |
| |
| void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) |
| { |
| struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| u32 val; |
| |
| if (!ht_info->is_ht) { |
| rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | |
| RXON_FLG_CHANNEL_MODE_PURE_40_MSK | |
| RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | |
| RXON_FLG_FAT_PROT_MSK | |
| RXON_FLG_HT_PROT_MSK); |
| return; |
| } |
| |
| /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */ |
| if (iwl_is_fat_tx_allowed(priv, NULL)) |
| rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK; |
| else |
| rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | |
| RXON_FLG_CHANNEL_MODE_PURE_40_MSK); |
| |
| /* Note: control channel is opposite of extension channel */ |
| switch (ht_info->extension_chan_offset) { |
| case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
| break; |
| case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| break; |
| case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
| default: |
| rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; |
| break; |
| } |
| |
| val = ht_info->ht_protection; |
| |
| rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS); |
| |
| iwl_set_rxon_chain(priv); |
| |
| IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X " |
| "rxon flags 0x%X operation mode :0x%X " |
| "extension channel offset 0x%x\n", |
| ht_info->mcs.rx_mask[0], |
| ht_info->mcs.rx_mask[1], |
| ht_info->mcs.rx_mask[2], |
| le32_to_cpu(rxon->flags), ht_info->ht_protection, |
| ht_info->extension_chan_offset); |
| return; |
| } |
| 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. |
| * 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) |
| { |
| bool is_single = is_single_rx_stream(priv); |
| bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); |
| |
| /* # of Rx chains to use when expecting MIMO. */ |
| if (is_single || (!is_cam && (priv->current_ht_config.sm_ps == |
| WLAN_HT_CAP_SM_PS_STATIC))) |
| return IWL_NUM_RX_CHAINS_SINGLE; |
| else |
| return IWL_NUM_RX_CHAINS_MULTIPLE; |
| } |
| |
| static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) |
| { |
| int idle_cnt; |
| bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); |
| /* # Rx chains when idling and maybe trying to save power */ |
| switch (priv->current_ht_config.sm_ps) { |
| case WLAN_HT_CAP_SM_PS_STATIC: |
| case WLAN_HT_CAP_SM_PS_DYNAMIC: |
| idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL : |
| IWL_NUM_IDLE_CHAINS_SINGLE; |
| break; |
| case WLAN_HT_CAP_SM_PS_DISABLED: |
| idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE; |
| break; |
| case WLAN_HT_CAP_SM_PS_INVALID: |
| default: |
| IWL_ERROR("invalid mimo ps mode %d\n", |
| priv->current_ht_config.sm_ps); |
| WARN_ON(1); |
| idle_cnt = -1; |
| break; |
| } |
| return idle_cnt; |
| } |
| |
| /* 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(4)) >> 4; |
| 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("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); |
| |
| /** |
| * 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 |
| |
| * 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 |
| */ |
| int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) |
| { |
| 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("Could not set channel to %d [%d]\n", |
| channel, band); |
| return -EINVAL; |
| } |
| |
| if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && |
| (priv->band == band)) |
| return 0; |
| |
| priv->staging_rxon.channel = cpu_to_le16(channel); |
| if (band == IEEE80211_BAND_5GHZ) |
| priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
| else |
| priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; |
| |
| priv->band = band; |
| |
| IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_set_rxon_channel); |
| |
| int iwl_setup_mac(struct iwl_priv *priv) |
| { |
| int ret; |
| struct ieee80211_hw *hw = priv->hw; |
| hw->rate_control_algorithm = "iwl-agn-rs"; |
| |
| /* Tell mac80211 our characteristics */ |
| hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| IEEE80211_HW_NOISE_DBM | |
| IEEE80211_HW_AMPDU_AGGREGATION; |
| hw->wiphy->interface_modes = |
| BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_ADHOC); |
| |
| hw->wiphy->fw_handles_regulatory = true; |
| |
| /* Default value; 4 EDCA QOS priorities */ |
| hw->queues = 4; |
| /* queues to support 11n aggregation */ |
| if (priv->cfg->sku & IWL_SKU_N) |
| hw->ampdu_queues = priv->cfg->mod_params->num_of_ampdu_queues; |
| |
| hw->conf.beacon_int = 100; |
| hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
| |
| if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
| priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| &priv->bands[IEEE80211_BAND_2GHZ]; |
| if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
| priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| &priv->bands[IEEE80211_BAND_5GHZ]; |
| |
| ret = ieee80211_register_hw(priv->hw); |
| if (ret) { |
| IWL_ERROR("Failed to register hw (error %d)\n", ret); |
| return ret; |
| } |
| priv->mac80211_registered = 1; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_setup_mac); |
| |
| int iwl_set_hw_params(struct iwl_priv *priv) |
| { |
| priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto; |
| 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_buf_size = IWL_RX_BUF_SIZE_8K; |
| else |
| priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; |
| priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; |
| |
| 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_init_drv(struct iwl_priv *priv) |
| { |
| int ret; |
| |
| priv->retry_rate = 1; |
| priv->ibss_beacon = NULL; |
| |
| spin_lock_init(&priv->lock); |
| spin_lock_init(&priv->power_data.lock); |
| spin_lock_init(&priv->sta_lock); |
| spin_lock_init(&priv->hcmd_lock); |
| |
| INIT_LIST_HEAD(&priv->free_frames); |
| |
| mutex_init(&priv->mutex); |
| |
| /* Clear the driver's (not device's) station table */ |
| iwl_clear_stations_table(priv); |
| |
| priv->data_retry_limit = -1; |
| priv->ieee_channels = NULL; |
| priv->ieee_rates = NULL; |
| priv->band = IEEE80211_BAND_2GHZ; |
| |
| priv->iw_mode = NL80211_IFTYPE_STATION; |
| |
| priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; |
| |
| /* Choose which receivers/antennas to use */ |
| iwl_set_rxon_chain(priv); |
| iwl_init_scan_params(priv); |
| |
| iwl_reset_qos(priv); |
| |
| priv->qos_data.qos_active = 0; |
| priv->qos_data.qos_cap.val = 0; |
| |
| priv->rates_mask = IWL_RATES_MASK; |
| /* If power management is turned on, default to AC mode */ |
| priv->power_mode = IWL_POWER_AC; |
| priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX; |
| |
| ret = iwl_init_channel_map(priv); |
| if (ret) { |
| IWL_ERROR("initializing regulatory failed: %d\n", ret); |
| goto err; |
| } |
| |
| ret = iwlcore_init_geos(priv); |
| if (ret) { |
| IWL_ERROR("initializing geos failed: %d\n", ret); |
| goto err_free_channel_map; |
| } |
| |
| return 0; |
| |
| err_free_channel_map: |
| iwl_free_channel_map(priv); |
| err: |
| return ret; |
| } |
| EXPORT_SYMBOL(iwl_init_drv); |
| |
| 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_calib_free_results(priv); |
| iwlcore_free_geos(priv); |
| iwl_free_channel_map(priv); |
| kfree(priv->scan); |
| } |
| EXPORT_SYMBOL(iwl_uninit_drv); |
| |
| |
| void iwl_disable_interrupts(struct iwl_priv *priv) |
| { |
| clear_bit(STATUS_INT_ENABLED, &priv->status); |
| |
| /* disable interrupts from uCode/NIC to host */ |
| iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| |
| /* acknowledge/clear/reset any interrupts still pending |
| * from uCode or flow handler (Rx/Tx DMA) */ |
| iwl_write32(priv, CSR_INT, 0xffffffff); |
| iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); |
| IWL_DEBUG_ISR("Disabled interrupts\n"); |
| } |
| EXPORT_SYMBOL(iwl_disable_interrupts); |
| |
| void iwl_enable_interrupts(struct iwl_priv *priv) |
| { |
| IWL_DEBUG_ISR("Enabling interrupts\n"); |
| set_bit(STATUS_INT_ENABLED, &priv->status); |
| iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); |
| } |
| EXPORT_SYMBOL(iwl_enable_interrupts); |
| |
| int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) |
| { |
| u32 stat_flags = 0; |
| struct iwl_host_cmd cmd = { |
| .id = REPLY_STATISTICS_CMD, |
| .meta.flags = flags, |
| .len = sizeof(stat_flags), |
| .data = (u8 *) &stat_flags, |
| }; |
| return iwl_send_cmd(priv, &cmd); |
| } |
| 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("ucode inst image size is %u\n", len); |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) |
| return ret; |
| |
| 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 + 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; |
| } |
| } |
| |
| iwl_release_nic_access(priv); |
| |
| 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("ucode inst image size is %u\n", len); |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) |
| return ret; |
| |
| iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, 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_ERROR("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; |
| } |
| } |
| |
| iwl_release_nic_access(priv); |
| |
| if (!errcnt) |
| IWL_DEBUG_INFO |
| ("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("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("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("Runtime uCode is good in inst SRAM\n"); |
| return 0; |
| } |
| |
| IWL_ERROR("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); |
| |
| |
| static const char *desc_lookup_text[] = { |
| "OK", |
| "FAIL", |
| "BAD_PARAM", |
| "BAD_CHECKSUM", |
| "NMI_INTERRUPT_WDG", |
| "SYSASSERT", |
| "FATAL_ERROR", |
| "BAD_COMMAND", |
| "HW_ERROR_TUNE_LOCK", |
| "HW_ERROR_TEMPERATURE", |
| "ILLEGAL_CHAN_FREQ", |
| "VCC_NOT_STABLE", |
| "FH_ERROR", |
| "NMI_INTERRUPT_HOST", |
| "NMI_INTERRUPT_ACTION_PT", |
| "NMI_INTERRUPT_UNKNOWN", |
| "UCODE_VERSION_MISMATCH", |
| "HW_ERROR_ABS_LOCK", |
| "HW_ERROR_CAL_LOCK_FAIL", |
| "NMI_INTERRUPT_INST_ACTION_PT", |
| "NMI_INTERRUPT_DATA_ACTION_PT", |
| "NMI_TRM_HW_ER", |
| "NMI_INTERRUPT_TRM", |
| "NMI_INTERRUPT_BREAK_POINT" |
| "DEBUG_0", |
| "DEBUG_1", |
| "DEBUG_2", |
| "DEBUG_3", |
| "UNKNOWN" |
| }; |
| |
| static const char *desc_lookup(int i) |
| { |
| int max = ARRAY_SIZE(desc_lookup_text) - 1; |
| |
| if (i < 0 || i > max) |
| i = max; |
| |
| return desc_lookup_text[i]; |
| } |
| |
| #define ERROR_START_OFFSET (1 * sizeof(u32)) |
| #define ERROR_ELEM_SIZE (7 * sizeof(u32)) |
| |
| void iwl_dump_nic_error_log(struct iwl_priv *priv) |
| { |
| u32 data2, line; |
| u32 desc, time, count, base, data1; |
| u32 blink1, blink2, ilink1, ilink2; |
| int ret; |
| |
| if (priv->ucode_type == UCODE_INIT) |
| base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); |
| else |
| base = le32_to_cpu(priv->card_alive.error_event_table_ptr); |
| |
| if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
| IWL_ERROR("Not valid error log pointer 0x%08X\n", base); |
| return; |
| } |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) { |
| IWL_WARNING("Can not read from adapter at this time.\n"); |
| return; |
| } |
| |
| count = iwl_read_targ_mem(priv, base); |
| |
| if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { |
| IWL_ERROR("Start IWL Error Log Dump:\n"); |
| IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); |
| } |
| |
| desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); |
| blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); |
| blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); |
| ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); |
| ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); |
| data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); |
| data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); |
| line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); |
| time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); |
| |
| IWL_ERROR("Desc Time " |
| "data1 data2 line\n"); |
| IWL_ERROR("%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", |
| desc_lookup(desc), desc, time, data1, data2, line); |
| IWL_ERROR("blink1 blink2 ilink1 ilink2\n"); |
| IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, |
| ilink1, ilink2); |
| |
| iwl_release_nic_access(priv); |
| } |
| EXPORT_SYMBOL(iwl_dump_nic_error_log); |
| |
| #define EVENT_START_OFFSET (4 * sizeof(u32)) |
| |
| /** |
| * iwl_print_event_log - Dump error event log to syslog |
| * |
| * NOTE: Must be called with iwl_grab_nic_access() already obtained! |
| */ |
| static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
| u32 num_events, u32 mode) |
| { |
| u32 i; |
| u32 base; /* SRAM byte address of event log header */ |
| u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ |
| u32 ptr; /* SRAM byte address of log data */ |
| u32 ev, time, data; /* event log data */ |
| |
| if (num_events == 0) |
| return; |
| if (priv->ucode_type == UCODE_INIT) |
| base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); |
| else |
| base = le32_to_cpu(priv->card_alive.log_event_table_ptr); |
| |
| if (mode == 0) |
| event_size = 2 * sizeof(u32); |
| else |
| event_size = 3 * sizeof(u32); |
| |
| ptr = base + EVENT_START_OFFSET + (start_idx * event_size); |
| |
| /* "time" is actually "data" for mode 0 (no timestamp). |
| * place event id # at far right for easier visual parsing. */ |
| for (i = 0; i < num_events; i++) { |
| ev = iwl_read_targ_mem(priv, ptr); |
| ptr += sizeof(u32); |
| time = iwl_read_targ_mem(priv, ptr); |
| ptr += sizeof(u32); |
| 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("EVT_LOGT:%010u:0x%08x:%04u\n", |
| time, data, ev); |
| } |
| } |
| } |
| |
| void iwl_dump_nic_event_log(struct iwl_priv *priv) |
| { |
| int ret; |
| u32 base; /* SRAM byte address of event log header */ |
| u32 capacity; /* event log capacity in # entries */ |
| u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ |
| u32 num_wraps; /* # times uCode wrapped to top of log */ |
| u32 next_entry; /* index of next entry to be written by uCode */ |
| u32 size; /* # entries that we'll print */ |
| |
| if (priv->ucode_type == UCODE_INIT) |
| base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); |
| else |
| base = le32_to_cpu(priv->card_alive.log_event_table_ptr); |
| |
| if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
| IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
| return; |
| } |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) { |
| IWL_WARNING("Can not read from adapter at this time.\n"); |
| return; |
| } |
| |
| /* event log header */ |
| capacity = iwl_read_targ_mem(priv, base); |
| mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); |
| num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); |
| next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); |
| |
| size = num_wraps ? capacity : next_entry; |
| |
| /* bail out if nothing in log */ |
| if (size == 0) { |
| IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); |
| iwl_release_nic_access(priv); |
| return; |
| } |
| |
| IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", |
| size, num_wraps); |
| |
| /* if uCode has wrapped back to top of log, start at the oldest entry, |
| * i.e the next one that uCode would fill. */ |
| if (num_wraps) |
| iwl_print_event_log(priv, next_entry, |
| capacity - next_entry, mode); |
| /* (then/else) start at top of log */ |
| iwl_print_event_log(priv, 0, next_entry, mode); |
| |
| iwl_release_nic_access(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 != NL80211_IFTYPE_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); |
| |
| /* If the driver is up it will receive CARD_STATE_NOTIFICATION |
| * notification where it will clear SW rfkill status. |
| * Setting it here would break the handler. Only if the |
| * interface is down we can set here since we don't |
| * receive any further notification. |
| */ |
| if (!priv->is_open) |
| 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 the driver is already loaded, it will receive |
| * CARD_STATE_NOTIFICATION notifications and the handler will |
| * call restart to reload the driver. |
| */ |
| return 1; |
| } |
| EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio); |