Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 3 | * GPL LICENSE SUMMARY |
| 4 | * |
Wey-Yi Guy | 901069c | 2011-04-05 09:42:00 -0700 | [diff] [blame] | 5 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 19 | * USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution |
| 22 | * in the file called LICENSE.GPL. |
| 23 | * |
| 24 | * Contact Information: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | *****************************************************************************/ |
| 28 | |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/module.h> |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 31 | #include <linux/etherdevice.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 32 | #include <linux/sched.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 33 | #include <linux/slab.h> |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 34 | #include <net/mac80211.h> |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 35 | |
Assaf Krauss | 6bc913b | 2008-03-11 16:17:18 -0700 | [diff] [blame] | 36 | #include "iwl-eeprom.h" |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 37 | #include "iwl-dev.h" /* FIXME: remove */ |
Winkler, Tomas | 19335774 | 2008-11-07 09:58:36 -0800 | [diff] [blame] | 38 | #include "iwl-debug.h" |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 39 | #include "iwl-core.h" |
Tomas Winkler | b661c81 | 2008-04-23 17:14:54 -0700 | [diff] [blame] | 40 | #include "iwl-io.h" |
Mohamed Abbas | 5da4b55 | 2008-04-21 15:41:51 -0700 | [diff] [blame] | 41 | #include "iwl-power.h" |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 42 | #include "iwl-sta.h" |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 43 | #include "iwl-agn.h" |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 44 | #include "iwl-helpers.h" |
Emmanuel Grumbach | 48f20d3 | 2011-08-25 23:10:36 -0700 | [diff] [blame] | 45 | #include "iwl-shared.h" |
Don Fry | 9d143e9 | 2011-04-20 15:23:57 -0700 | [diff] [blame] | 46 | #include "iwl-agn.h" |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 47 | #include "iwl-trans.h" |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 48 | |
Tomas Winkler | 57bd1be | 2008-05-15 13:54:03 +0800 | [diff] [blame] | 49 | const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
Tomas Winkler | 57bd1be | 2008-05-15 13:54:03 +0800 | [diff] [blame] | 50 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 51 | #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
| 52 | #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 53 | static void iwl_init_ht_hw_capab(const struct iwl_priv *priv, |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 54 | struct ieee80211_sta_ht_cap *ht_info, |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 55 | enum ieee80211_band band) |
| 56 | { |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 57 | u16 max_bit_rate = 0; |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 58 | u8 rx_chains_num = hw_params(priv).rx_chains_num; |
| 59 | u8 tx_chains_num = hw_params(priv).tx_chains_num; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 60 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 61 | ht_info->cap = 0; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 62 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 63 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 64 | ht_info->ht_supported = true; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 65 | |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 66 | if (priv->cfg->ht_params && |
| 67 | priv->cfg->ht_params->ht_greenfield_support) |
Daniel C Halperin | b261793 | 2009-08-13 13:30:59 -0700 | [diff] [blame] | 68 | ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 69 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 70 | max_bit_rate = MAX_BIT_RATE_20_MHZ; |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 71 | if (hw_params(priv).ht40_channel & BIT(band)) { |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 72 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| 73 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; |
| 74 | ht_info->mcs.rx_mask[4] = 0x01; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 75 | max_bit_rate = MAX_BIT_RATE_40_MHZ; |
| 76 | } |
| 77 | |
Don Fry | 9d143e9 | 2011-04-20 15:23:57 -0700 | [diff] [blame] | 78 | if (iwlagn_mod_params.amsdu_size_8K) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 79 | ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 80 | |
| 81 | ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 82 | if (priv->cfg->bt_params && priv->cfg->bt_params->ampdu_factor) |
| 83 | ht_info->ampdu_factor = priv->cfg->bt_params->ampdu_factor; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 84 | ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 85 | if (priv->cfg->bt_params && priv->cfg->bt_params->ampdu_density) |
| 86 | ht_info->ampdu_density = priv->cfg->bt_params->ampdu_density; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 87 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 88 | ht_info->mcs.rx_mask[0] = 0xFF; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 89 | if (rx_chains_num >= 2) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 90 | ht_info->mcs.rx_mask[1] = 0xFF; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 91 | if (rx_chains_num >= 3) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 92 | ht_info->mcs.rx_mask[2] = 0xFF; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 93 | |
| 94 | /* Highest supported Rx data rate */ |
| 95 | max_bit_rate *= rx_chains_num; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 96 | WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); |
| 97 | ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 98 | |
| 99 | /* Tx MCS capabilities */ |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 100 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 101 | if (tx_chains_num != rx_chains_num) { |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 102 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
| 103 | ht_info->mcs.tx_params |= ((tx_chains_num - 1) << |
| 104 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 105 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 106 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 107 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 108 | /** |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 109 | * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 110 | */ |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 111 | int iwl_init_geos(struct iwl_priv *priv) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 112 | { |
| 113 | struct iwl_channel_info *ch; |
| 114 | struct ieee80211_supported_band *sband; |
| 115 | struct ieee80211_channel *channels; |
| 116 | struct ieee80211_channel *geo_ch; |
| 117 | struct ieee80211_rate *rates; |
| 118 | int i = 0; |
Stanislaw Gruszka | 75d80ca | 2011-04-28 11:12:10 +0200 | [diff] [blame] | 119 | s8 max_tx_power = IWLAGN_TX_POWER_TARGET_POWER_MIN; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 120 | |
| 121 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
| 122 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 123 | IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n"); |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 124 | set_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 125 | return 0; |
| 126 | } |
| 127 | |
| 128 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
| 129 | priv->channel_count, GFP_KERNEL); |
| 130 | if (!channels) |
| 131 | return -ENOMEM; |
| 132 | |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 133 | rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY), |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 134 | GFP_KERNEL); |
| 135 | if (!rates) { |
| 136 | kfree(channels); |
| 137 | return -ENOMEM; |
| 138 | } |
| 139 | |
| 140 | /* 5.2GHz channels start after the 2.4GHz channels */ |
| 141 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| 142 | sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; |
| 143 | /* just OFDM */ |
| 144 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 145 | sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 146 | |
Wey-Yi Guy | 8895075 | 2011-06-06 12:05:46 -0700 | [diff] [blame] | 147 | if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 148 | iwl_init_ht_hw_capab(priv, &sband->ht_cap, |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 149 | IEEE80211_BAND_5GHZ); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 150 | |
| 151 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| 152 | sband->channels = channels; |
| 153 | /* OFDM & CCK */ |
| 154 | sband->bitrates = rates; |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 155 | sband->n_bitrates = IWL_RATE_COUNT_LEGACY; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 156 | |
Wey-Yi Guy | 8895075 | 2011-06-06 12:05:46 -0700 | [diff] [blame] | 157 | if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 158 | iwl_init_ht_hw_capab(priv, &sband->ht_cap, |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 159 | IEEE80211_BAND_2GHZ); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 160 | |
| 161 | priv->ieee_channels = channels; |
| 162 | priv->ieee_rates = rates; |
| 163 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 164 | for (i = 0; i < priv->channel_count; i++) { |
| 165 | ch = &priv->channel_info[i]; |
| 166 | |
| 167 | /* FIXME: might be removed if scan is OK */ |
| 168 | if (!is_channel_valid(ch)) |
| 169 | continue; |
| 170 | |
Stanislaw Gruszka | 5a3a035 | 2011-01-31 13:01:35 +0100 | [diff] [blame] | 171 | sband = &priv->bands[ch->band]; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 172 | |
| 173 | geo_ch = &sband->channels[sband->n_channels++]; |
| 174 | |
| 175 | geo_ch->center_freq = |
Stanislaw Gruszka | 5a3a035 | 2011-01-31 13:01:35 +0100 | [diff] [blame] | 176 | ieee80211_channel_to_frequency(ch->channel, ch->band); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 177 | geo_ch->max_power = ch->max_power_avg; |
| 178 | geo_ch->max_antenna_gain = 0xff; |
| 179 | geo_ch->hw_value = ch->channel; |
| 180 | |
| 181 | if (is_channel_valid(ch)) { |
| 182 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
| 183 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; |
| 184 | |
| 185 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
| 186 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; |
| 187 | |
| 188 | if (ch->flags & EEPROM_CHANNEL_RADAR) |
| 189 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
| 190 | |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 191 | geo_ch->flags |= ch->ht40_extension_channel; |
Emmanuel Grumbach | 4d38c2e | 2008-05-29 16:35:24 +0800 | [diff] [blame] | 192 | |
Stanislaw Gruszka | 75d80ca | 2011-04-28 11:12:10 +0200 | [diff] [blame] | 193 | if (ch->max_power_avg > max_tx_power) |
| 194 | max_tx_power = ch->max_power_avg; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 195 | } else { |
| 196 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
| 197 | } |
| 198 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 199 | IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 200 | ch->channel, geo_ch->center_freq, |
| 201 | is_channel_a_band(ch) ? "5.2" : "2.4", |
| 202 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? |
| 203 | "restricted" : "valid", |
| 204 | geo_ch->flags); |
| 205 | } |
| 206 | |
Stanislaw Gruszka | 75d80ca | 2011-04-28 11:12:10 +0200 | [diff] [blame] | 207 | priv->tx_power_device_lmt = max_tx_power; |
| 208 | priv->tx_power_user_lmt = max_tx_power; |
| 209 | priv->tx_power_next = max_tx_power; |
| 210 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 211 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
Wey-Yi Guy | 8895075 | 2011-06-06 12:05:46 -0700 | [diff] [blame] | 212 | priv->cfg->sku & EEPROM_SKU_CAP_BAND_52GHZ) { |
Emmanuel Grumbach | 19707ba | 2011-06-10 11:28:56 -0700 | [diff] [blame] | 213 | char buf[32]; |
Emmanuel Grumbach | d593411 | 2011-07-11 10:48:51 +0300 | [diff] [blame] | 214 | bus_get_hw_id(priv->bus, buf, sizeof(buf)); |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 215 | IWL_INFO(priv, "Incorrectly detected BG card as ABG. " |
Emmanuel Grumbach | 19707ba | 2011-06-10 11:28:56 -0700 | [diff] [blame] | 216 | "Please send your %s to maintainer.\n", buf); |
Wey-Yi Guy | 8895075 | 2011-06-06 12:05:46 -0700 | [diff] [blame] | 217 | priv->cfg->sku &= ~EEPROM_SKU_CAP_BAND_52GHZ; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 218 | } |
| 219 | |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 220 | IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 221 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
| 222 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 223 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 224 | set_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 225 | |
| 226 | return 0; |
| 227 | } |
| 228 | |
| 229 | /* |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 230 | * iwl_free_geos - undo allocations in iwl_init_geos |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 231 | */ |
Wey-Yi Guy | b39488a | 2011-08-25 23:10:33 -0700 | [diff] [blame] | 232 | void iwl_free_geos(struct iwl_priv *priv) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 233 | { |
| 234 | kfree(priv->ieee_channels); |
| 235 | kfree(priv->ieee_rates); |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 236 | clear_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 237 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 238 | |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 239 | static bool iwl_is_channel_extension(struct iwl_priv *priv, |
| 240 | enum ieee80211_band band, |
| 241 | u16 channel, u8 extension_chan_offset) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 242 | { |
| 243 | const struct iwl_channel_info *ch_info; |
| 244 | |
| 245 | ch_info = iwl_get_channel_info(priv, band, channel); |
| 246 | if (!is_channel_valid(ch_info)) |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 247 | return false; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 248 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 249 | if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 250 | return !(ch_info->ht40_extension_channel & |
Luis R. Rodriguez | 689da1b | 2009-05-02 00:37:18 -0400 | [diff] [blame] | 251 | IEEE80211_CHAN_NO_HT40PLUS); |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 252 | else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 253 | return !(ch_info->ht40_extension_channel & |
Luis R. Rodriguez | 689da1b | 2009-05-02 00:37:18 -0400 | [diff] [blame] | 254 | IEEE80211_CHAN_NO_HT40MINUS); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 255 | |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 256 | return false; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 257 | } |
| 258 | |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 259 | bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv, |
| 260 | struct iwl_rxon_context *ctx, |
| 261 | struct ieee80211_sta_ht_cap *ht_cap) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 262 | { |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 263 | if (!ctx->ht.enabled || !ctx->ht.is_40mhz) |
| 264 | return false; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 265 | |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 266 | /* |
| 267 | * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 268 | * the bit will not set if it is pure 40MHz case |
| 269 | */ |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 270 | if (ht_cap && !ht_cap->ht_supported) |
| 271 | return false; |
| 272 | |
Johannes Berg | d73e492 | 2010-05-06 12:18:41 -0700 | [diff] [blame] | 273 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
Wey-Yi Guy | 1e4247d | 2009-07-27 13:50:15 -0700 | [diff] [blame] | 274 | if (priv->disable_ht40) |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 275 | return false; |
Wey-Yi Guy | 1e4247d | 2009-07-27 13:50:15 -0700 | [diff] [blame] | 276 | #endif |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 277 | |
Wey-Yi Guy | 611d3eb | 2009-06-12 13:22:51 -0700 | [diff] [blame] | 278 | return iwl_is_channel_extension(priv, priv->band, |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 279 | le16_to_cpu(ctx->staging.channel), |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 280 | ctx->ht.extension_chan_offset); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 281 | } |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 282 | |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 283 | static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) |
| 284 | { |
Johannes Berg | ea196fd | 2010-09-03 06:30:55 -0700 | [diff] [blame] | 285 | u16 new_val; |
| 286 | u16 beacon_factor; |
| 287 | |
| 288 | /* |
| 289 | * If mac80211 hasn't given us a beacon interval, program |
| 290 | * the default into the device (not checking this here |
| 291 | * would cause the adjustment below to return the maximum |
| 292 | * value, which may break PAN.) |
| 293 | */ |
| 294 | if (!beacon_val) |
| 295 | return DEFAULT_BEACON_INTERVAL; |
| 296 | |
| 297 | /* |
| 298 | * If the beacon interval we obtained from the peer |
| 299 | * is too large, we'll have to wake up more often |
| 300 | * (and in IBSS case, we'll beacon too much) |
| 301 | * |
| 302 | * For example, if max_beacon_val is 4096, and the |
| 303 | * requested beacon interval is 7000, we'll have to |
| 304 | * use 3500 to be able to wake up on the beacons. |
| 305 | * |
| 306 | * This could badly influence beacon detection stats. |
| 307 | */ |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 308 | |
| 309 | beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; |
| 310 | new_val = beacon_val / beacon_factor; |
| 311 | |
| 312 | if (!new_val) |
| 313 | new_val = max_beacon_val; |
| 314 | |
| 315 | return new_val; |
| 316 | } |
| 317 | |
Johannes Berg | 47313e3 | 2010-08-23 10:46:55 +0200 | [diff] [blame] | 318 | int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 319 | { |
| 320 | u64 tsf; |
| 321 | s32 interval_tm, rem; |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 322 | struct ieee80211_conf *conf = NULL; |
| 323 | u16 beacon_int; |
Johannes Berg | 47313e3 | 2010-08-23 10:46:55 +0200 | [diff] [blame] | 324 | struct ieee80211_vif *vif = ctx->vif; |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 325 | |
| 326 | conf = ieee80211_get_hw_conf(priv->hw); |
| 327 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 328 | lockdep_assert_held(&priv->shrd->mutex); |
Johannes Berg | 948f5a2 | 2010-07-29 07:07:51 -0700 | [diff] [blame] | 329 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 330 | memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
Johannes Berg | 948f5a2 | 2010-07-29 07:07:51 -0700 | [diff] [blame] | 331 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 332 | ctx->timing.timestamp = cpu_to_le64(priv->timestamp); |
| 333 | ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 334 | |
Johannes Berg | 47313e3 | 2010-08-23 10:46:55 +0200 | [diff] [blame] | 335 | beacon_int = vif ? vif->bss_conf.beacon_int : 0; |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 336 | |
Johannes Berg | 47313e3 | 2010-08-23 10:46:55 +0200 | [diff] [blame] | 337 | /* |
| 338 | * TODO: For IBSS we need to get atim_window from mac80211, |
| 339 | * for now just always use 0 |
| 340 | */ |
| 341 | ctx->timing.atim_window = 0; |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 342 | |
Johannes Berg | bde4530 | 2010-08-23 10:46:57 +0200 | [diff] [blame] | 343 | if (ctx->ctxid == IWL_RXON_CTX_PAN && |
Johannes Berg | f1f270b | 2010-09-03 06:31:26 -0700 | [diff] [blame] | 344 | (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) && |
| 345 | iwl_is_associated(priv, IWL_RXON_CTX_BSS) && |
| 346 | priv->contexts[IWL_RXON_CTX_BSS].vif && |
| 347 | priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) { |
Johannes Berg | bde4530 | 2010-08-23 10:46:57 +0200 | [diff] [blame] | 348 | ctx->timing.beacon_interval = |
| 349 | priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval; |
| 350 | beacon_int = le16_to_cpu(ctx->timing.beacon_interval); |
Johannes Berg | f1f270b | 2010-09-03 06:31:26 -0700 | [diff] [blame] | 351 | } else if (ctx->ctxid == IWL_RXON_CTX_BSS && |
| 352 | iwl_is_associated(priv, IWL_RXON_CTX_PAN) && |
| 353 | priv->contexts[IWL_RXON_CTX_PAN].vif && |
| 354 | priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int && |
| 355 | (!iwl_is_associated_ctx(ctx) || !ctx->vif || |
| 356 | !ctx->vif->bss_conf.beacon_int)) { |
| 357 | ctx->timing.beacon_interval = |
| 358 | priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval; |
| 359 | beacon_int = le16_to_cpu(ctx->timing.beacon_interval); |
Johannes Berg | bde4530 | 2010-08-23 10:46:57 +0200 | [diff] [blame] | 360 | } else { |
| 361 | beacon_int = iwl_adjust_beacon_interval(beacon_int, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 362 | hw_params(priv).max_beacon_itrvl * TIME_UNIT); |
Johannes Berg | bde4530 | 2010-08-23 10:46:57 +0200 | [diff] [blame] | 363 | ctx->timing.beacon_interval = cpu_to_le16(beacon_int); |
| 364 | } |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 365 | |
Johannes Berg | bbb05cb | 2011-07-18 01:59:22 -0700 | [diff] [blame] | 366 | ctx->beacon_int = beacon_int; |
| 367 | |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 368 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ |
Wey-Yi Guy | f8525e5 | 2010-05-05 11:31:38 -0700 | [diff] [blame] | 369 | interval_tm = beacon_int * TIME_UNIT; |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 370 | rem = do_div(tsf, interval_tm); |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 371 | ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 372 | |
Johannes Berg | 47313e3 | 2010-08-23 10:46:55 +0200 | [diff] [blame] | 373 | ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; |
Johannes Berg | 2491fa4 | 2010-08-23 10:46:52 +0200 | [diff] [blame] | 374 | |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 375 | IWL_DEBUG_ASSOC(priv, |
| 376 | "beacon interval %d beacon timer %d beacon tim %d\n", |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 377 | le16_to_cpu(ctx->timing.beacon_interval), |
| 378 | le32_to_cpu(ctx->timing.beacon_init_val), |
| 379 | le16_to_cpu(ctx->timing.atim_window)); |
Johannes Berg | 948f5a2 | 2010-07-29 07:07:51 -0700 | [diff] [blame] | 380 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 381 | return trans_send_cmd_pdu(&priv->trans, ctx->rxon_timing_cmd, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 382 | CMD_SYNC, sizeof(ctx->timing), &ctx->timing); |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 383 | } |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 384 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 385 | void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| 386 | int hw_decrypt) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 387 | { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 388 | struct iwl_rxon_cmd *rxon = &ctx->staging; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 389 | |
| 390 | if (hw_decrypt) |
| 391 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; |
| 392 | else |
| 393 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; |
| 394 | |
| 395 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 396 | |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 397 | /* validate RXON structure is valid */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 398 | int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 399 | { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 400 | struct iwl_rxon_cmd *rxon = &ctx->staging; |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 401 | u32 errors = 0; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 402 | |
| 403 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 404 | if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { |
| 405 | IWL_WARN(priv, "check 2.4G: wrong narrow\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 406 | errors |= BIT(0); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 407 | } |
| 408 | if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { |
| 409 | IWL_WARN(priv, "check 2.4G: wrong radar\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 410 | errors |= BIT(1); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 411 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 412 | } else { |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 413 | if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { |
| 414 | IWL_WARN(priv, "check 5.2G: not short slot!\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 415 | errors |= BIT(2); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 416 | } |
| 417 | if (rxon->flags & RXON_FLG_CCK_MSK) { |
| 418 | IWL_WARN(priv, "check 5.2G: CCK!\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 419 | errors |= BIT(3); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 420 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 421 | } |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 422 | if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { |
| 423 | IWL_WARN(priv, "mac/bssid mcast!\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 424 | errors |= BIT(4); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 425 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 426 | |
| 427 | /* make sure basic rates 6Mbps and 1Mbps are supported */ |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 428 | if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 && |
| 429 | (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) { |
| 430 | IWL_WARN(priv, "neither 1 nor 6 are basic\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 431 | errors |= BIT(5); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 432 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 433 | |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 434 | if (le16_to_cpu(rxon->assoc_id) > 2007) { |
| 435 | IWL_WARN(priv, "aid > 2007\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 436 | errors |= BIT(6); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 437 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 438 | |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 439 | if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) |
| 440 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { |
| 441 | IWL_WARN(priv, "CCK and short slot\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 442 | errors |= BIT(7); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 443 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 444 | |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 445 | if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) |
| 446 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { |
| 447 | IWL_WARN(priv, "CCK and auto detect"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 448 | errors |= BIT(8); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 449 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 450 | |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 451 | if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | |
| 452 | RXON_FLG_TGG_PROTECT_MSK)) == |
| 453 | RXON_FLG_TGG_PROTECT_MSK) { |
| 454 | IWL_WARN(priv, "TGg but no auto-detect\n"); |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 455 | errors |= BIT(9); |
Johannes Berg | dacefed | 2010-10-07 04:02:03 -0700 | [diff] [blame] | 456 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 457 | |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 458 | if (rxon->channel == 0) { |
| 459 | IWL_WARN(priv, "zero channel is invalid\n"); |
| 460 | errors |= BIT(10); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 461 | } |
Johannes Berg | c914ac2 | 2011-04-21 10:57:23 -0700 | [diff] [blame] | 462 | |
| 463 | WARN(errors, "Invalid RXON (%#x), channel %d", |
| 464 | errors, le16_to_cpu(rxon->channel)); |
| 465 | |
| 466 | return errors ? -EINVAL : 0; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 467 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 468 | |
| 469 | /** |
| 470 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
| 471 | * @priv: staging_rxon is compared to active_rxon |
| 472 | * |
| 473 | * If the RXON structure is changing enough to require a new tune, |
| 474 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that |
| 475 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. |
| 476 | */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 477 | int iwl_full_rxon_required(struct iwl_priv *priv, |
| 478 | struct iwl_rxon_context *ctx) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 479 | { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 480 | const struct iwl_rxon_cmd *staging = &ctx->staging; |
| 481 | const struct iwl_rxon_cmd *active = &ctx->active; |
| 482 | |
| 483 | #define CHK(cond) \ |
| 484 | if ((cond)) { \ |
| 485 | IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \ |
| 486 | return 1; \ |
| 487 | } |
| 488 | |
| 489 | #define CHK_NEQ(c1, c2) \ |
| 490 | if ((c1) != (c2)) { \ |
| 491 | IWL_DEBUG_INFO(priv, "need full RXON - " \ |
| 492 | #c1 " != " #c2 " - %d != %d\n", \ |
| 493 | (c1), (c2)); \ |
| 494 | return 1; \ |
| 495 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 496 | |
| 497 | /* These items are only settable from the full RXON command */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 498 | CHK(!iwl_is_associated_ctx(ctx)); |
| 499 | CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr)); |
| 500 | CHK(compare_ether_addr(staging->node_addr, active->node_addr)); |
| 501 | CHK(compare_ether_addr(staging->wlap_bssid_addr, |
| 502 | active->wlap_bssid_addr)); |
| 503 | CHK_NEQ(staging->dev_type, active->dev_type); |
| 504 | CHK_NEQ(staging->channel, active->channel); |
| 505 | CHK_NEQ(staging->air_propagation, active->air_propagation); |
| 506 | CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates, |
| 507 | active->ofdm_ht_single_stream_basic_rates); |
| 508 | CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates, |
| 509 | active->ofdm_ht_dual_stream_basic_rates); |
| 510 | CHK_NEQ(staging->ofdm_ht_triple_stream_basic_rates, |
| 511 | active->ofdm_ht_triple_stream_basic_rates); |
| 512 | CHK_NEQ(staging->assoc_id, active->assoc_id); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 513 | |
| 514 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can |
| 515 | * be updated with the RXON_ASSOC command -- however only some |
| 516 | * flag transitions are allowed using RXON_ASSOC */ |
| 517 | |
| 518 | /* Check if we are not switching bands */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 519 | CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK, |
| 520 | active->flags & RXON_FLG_BAND_24G_MSK); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 521 | |
| 522 | /* Check if we are switching association toggle */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 523 | CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK, |
| 524 | active->filter_flags & RXON_FILTER_ASSOC_MSK); |
| 525 | |
| 526 | #undef CHK |
| 527 | #undef CHK_NEQ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 528 | |
| 529 | return 0; |
| 530 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 531 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 532 | static void _iwl_set_rxon_ht(struct iwl_priv *priv, |
| 533 | struct iwl_ht_config *ht_conf, |
| 534 | struct iwl_rxon_context *ctx) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 535 | { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 536 | struct iwl_rxon_cmd *rxon = &ctx->staging; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 537 | |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 538 | if (!ctx->ht.enabled) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 539 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 540 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 541 | RXON_FLG_HT40_PROT_MSK | |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 542 | RXON_FLG_HT_PROT_MSK); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 543 | return; |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 544 | } |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 545 | |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 546 | /* FIXME: if the definition of ht.protection changed, the "translation" |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 547 | * will be needed for rxon->flags |
| 548 | */ |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 549 | rxon->flags |= cpu_to_le32(ctx->ht.protection << RXON_FLG_HT_OPERATING_MODE_POS); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 550 | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 551 | /* Set up channel bandwidth: |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 552 | * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 553 | /* clear the HT channel mode before set the mode */ |
| 554 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | |
| 555 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 556 | if (iwl_is_ht40_tx_allowed(priv, ctx, NULL)) { |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 557 | /* pure ht40 */ |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 558 | if (ctx->ht.protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 559 | rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; |
Wey-Yi Guy | 508b08e | 2009-06-12 13:22:50 -0700 | [diff] [blame] | 560 | /* Note: control channel is opposite of extension channel */ |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 561 | switch (ctx->ht.extension_chan_offset) { |
Wey-Yi Guy | 508b08e | 2009-06-12 13:22:50 -0700 | [diff] [blame] | 562 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| 563 | rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| 564 | break; |
| 565 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| 566 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| 567 | break; |
| 568 | } |
| 569 | } else { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 570 | /* Note: control channel is opposite of extension channel */ |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 571 | switch (ctx->ht.extension_chan_offset) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 572 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| 573 | rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
| 574 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; |
| 575 | break; |
| 576 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| 577 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| 578 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; |
| 579 | break; |
| 580 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
| 581 | default: |
| 582 | /* channel location only valid if in Mixed mode */ |
| 583 | IWL_ERR(priv, "invalid extension channel offset\n"); |
| 584 | break; |
| 585 | } |
| 586 | } |
| 587 | } else { |
| 588 | rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 589 | } |
| 590 | |
Wey-Yi Guy | e3f10ce | 2011-07-01 07:59:26 -0700 | [diff] [blame] | 591 | iwlagn_set_rxon_chain(priv, ctx); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 592 | |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 593 | IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 594 | "extension channel offset 0x%x\n", |
Johannes Berg | 7e6a588 | 2010-08-23 10:46:46 +0200 | [diff] [blame] | 595 | le32_to_cpu(rxon->flags), ctx->ht.protection, |
| 596 | ctx->ht.extension_chan_offset); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 597 | } |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 598 | |
| 599 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) |
| 600 | { |
| 601 | struct iwl_rxon_context *ctx; |
| 602 | |
| 603 | for_each_context(priv, ctx) |
| 604 | _iwl_set_rxon_ht(priv, ht_conf, ctx); |
| 605 | } |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 606 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 607 | /* Return valid, unused, channel for a passive scan to reset the RF */ |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 608 | u8 iwl_get_single_channel_number(struct iwl_priv *priv, |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 609 | enum ieee80211_band band) |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 610 | { |
| 611 | const struct iwl_channel_info *ch_info; |
| 612 | int i; |
| 613 | u8 channel = 0; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 614 | u8 min, max; |
| 615 | struct iwl_rxon_context *ctx; |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 616 | |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 617 | if (band == IEEE80211_BAND_5GHZ) { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 618 | min = 14; |
| 619 | max = priv->channel_count; |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 620 | } else { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 621 | min = 0; |
| 622 | max = 14; |
| 623 | } |
| 624 | |
| 625 | for (i = min; i < max; i++) { |
| 626 | bool busy = false; |
| 627 | |
| 628 | for_each_context(priv, ctx) { |
| 629 | busy = priv->channel_info[i].channel == |
| 630 | le16_to_cpu(ctx->staging.channel); |
| 631 | if (busy) |
| 632 | break; |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 633 | } |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 634 | |
| 635 | if (busy) |
| 636 | continue; |
| 637 | |
| 638 | channel = priv->channel_info[i].channel; |
| 639 | ch_info = iwl_get_channel_info(priv, band, channel); |
| 640 | if (is_channel_valid(ch_info)) |
| 641 | break; |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 642 | } |
| 643 | |
| 644 | return channel; |
| 645 | } |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 646 | |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 647 | /** |
Shanyu Zhao | 3edb5fd | 2010-07-27 20:45:15 -0700 | [diff] [blame] | 648 | * iwl_set_rxon_channel - Set the band and channel values in staging RXON |
| 649 | * @ch: requested channel as a pointer to struct ieee80211_channel |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 650 | |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 651 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields |
Shanyu Zhao | 3edb5fd | 2010-07-27 20:45:15 -0700 | [diff] [blame] | 652 | * in the staging RXON flag structure based on the ch->band |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 653 | */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 654 | int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch, |
| 655 | struct iwl_rxon_context *ctx) |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 656 | { |
Tomas Winkler | 17e7278 | 2008-09-03 11:26:26 +0800 | [diff] [blame] | 657 | enum ieee80211_band band = ch->band; |
Shanyu Zhao | 81e9543 | 2010-07-28 13:40:27 -0700 | [diff] [blame] | 658 | u16 channel = ch->hw_value; |
Tomas Winkler | 17e7278 | 2008-09-03 11:26:26 +0800 | [diff] [blame] | 659 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 660 | if ((le16_to_cpu(ctx->staging.channel) == channel) && |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 661 | (priv->band == band)) |
| 662 | return 0; |
| 663 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 664 | ctx->staging.channel = cpu_to_le16(channel); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 665 | if (band == IEEE80211_BAND_5GHZ) |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 666 | ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 667 | else |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 668 | ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 669 | |
| 670 | priv->band = band; |
| 671 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 672 | IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 673 | |
| 674 | return 0; |
| 675 | } |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 676 | |
Wey-Yi Guy | 79d0732 | 2010-05-06 08:54:11 -0700 | [diff] [blame] | 677 | void iwl_set_flags_for_band(struct iwl_priv *priv, |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 678 | struct iwl_rxon_context *ctx, |
Wey-Yi Guy | 79d0732 | 2010-05-06 08:54:11 -0700 | [diff] [blame] | 679 | enum ieee80211_band band, |
| 680 | struct ieee80211_vif *vif) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 681 | { |
| 682 | if (band == IEEE80211_BAND_5GHZ) { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 683 | ctx->staging.flags &= |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 684 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK |
| 685 | | RXON_FLG_CCK_MSK); |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 686 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 687 | } else { |
| 688 | /* Copied from iwl_post_associate() */ |
Johannes Berg | c213d74 | 2010-05-06 12:21:40 -0700 | [diff] [blame] | 689 | if (vif && vif->bss_conf.use_short_slot) |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 690 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 691 | else |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 692 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 693 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 694 | ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; |
| 695 | ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK; |
| 696 | ctx->staging.flags &= ~RXON_FLG_CCK_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 697 | } |
| 698 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 699 | |
| 700 | /* |
| 701 | * initialize rxon structure with default values from eeprom |
| 702 | */ |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 703 | void iwl_connection_init_rx_config(struct iwl_priv *priv, |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 704 | struct iwl_rxon_context *ctx) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 705 | { |
| 706 | const struct iwl_channel_info *ch_info; |
| 707 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 708 | memset(&ctx->staging, 0, sizeof(ctx->staging)); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 709 | |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 710 | if (!ctx->vif) { |
| 711 | ctx->staging.dev_type = ctx->unused_devtype; |
| 712 | } else switch (ctx->vif->type) { |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 713 | case NL80211_IFTYPE_AP: |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 714 | ctx->staging.dev_type = ctx->ap_devtype; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 715 | break; |
| 716 | |
| 717 | case NL80211_IFTYPE_STATION: |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 718 | ctx->staging.dev_type = ctx->station_devtype; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 719 | ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 720 | break; |
| 721 | |
| 722 | case NL80211_IFTYPE_ADHOC: |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 723 | ctx->staging.dev_type = ctx->ibss_devtype; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 724 | ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; |
| 725 | ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 726 | RXON_FILTER_ACCEPT_GRP_MSK; |
| 727 | break; |
| 728 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 729 | default: |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 730 | IWL_ERR(priv, "Unsupported interface type %d\n", |
| 731 | ctx->vif->type); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 732 | break; |
| 733 | } |
| 734 | |
| 735 | #if 0 |
| 736 | /* TODO: Figure out when short_preamble would be set and cache from |
| 737 | * that */ |
| 738 | if (!hw_to_local(priv->hw)->short_preamble) |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 739 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 740 | else |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 741 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 742 | #endif |
| 743 | |
| 744 | ch_info = iwl_get_channel_info(priv, priv->band, |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 745 | le16_to_cpu(ctx->active.channel)); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 746 | |
| 747 | if (!ch_info) |
| 748 | ch_info = &priv->channel_info[0]; |
| 749 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 750 | ctx->staging.channel = cpu_to_le16(ch_info->channel); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 751 | priv->band = ch_info->band; |
| 752 | |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 753 | iwl_set_flags_for_band(priv, ctx, priv->band, ctx->vif); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 754 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 755 | ctx->staging.ofdm_basic_rates = |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 756 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 757 | ctx->staging.cck_basic_rates = |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 758 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; |
| 759 | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 760 | /* clear both MIX and PURE40 mode flag */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 761 | ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 762 | RXON_FLG_CHANNEL_MODE_PURE_40); |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 763 | if (ctx->vif) |
| 764 | memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN); |
Johannes Berg | 7684c40 | 2010-05-12 03:33:11 -0700 | [diff] [blame] | 765 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 766 | ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff; |
| 767 | ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff; |
| 768 | ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 769 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 770 | |
Wey-Yi Guy | 79d0732 | 2010-05-06 08:54:11 -0700 | [diff] [blame] | 771 | void iwl_set_rate(struct iwl_priv *priv) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 772 | { |
| 773 | const struct ieee80211_supported_band *hw = NULL; |
| 774 | struct ieee80211_rate *rate; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 775 | struct iwl_rxon_context *ctx; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 776 | int i; |
| 777 | |
| 778 | hw = iwl_get_hw_mode(priv, priv->band); |
| 779 | if (!hw) { |
| 780 | IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n"); |
| 781 | return; |
| 782 | } |
| 783 | |
| 784 | priv->active_rate = 0; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 785 | |
| 786 | for (i = 0; i < hw->n_bitrates; i++) { |
| 787 | rate = &(hw->bitrates[i]); |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 788 | if (rate->hw_value < IWL_RATE_COUNT_LEGACY) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 789 | priv->active_rate |= (1 << rate->hw_value); |
| 790 | } |
| 791 | |
Johannes Berg | 4a02886 | 2010-01-21 11:33:19 -0800 | [diff] [blame] | 792 | IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 793 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 794 | for_each_context(priv, ctx) { |
| 795 | ctx->staging.cck_basic_rates = |
| 796 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 797 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 798 | ctx->staging.ofdm_basic_rates = |
| 799 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; |
| 800 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 801 | } |
Wey-Yi Guy | 79d0732 | 2010-05-06 08:54:11 -0700 | [diff] [blame] | 802 | |
| 803 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
| 804 | { |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 805 | /* |
| 806 | * MULTI-FIXME |
| 807 | * See iwl_mac_channel_switch. |
| 808 | */ |
| 809 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| 810 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 811 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
Wey-Yi Guy | 79d0732 | 2010-05-06 08:54:11 -0700 | [diff] [blame] | 812 | return; |
| 813 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 814 | if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, |
| 815 | &priv->shrd->status)) |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 816 | ieee80211_chswitch_done(ctx->vif, is_success); |
Wey-Yi Guy | 79d0732 | 2010-05-06 08:54:11 -0700 | [diff] [blame] | 817 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 818 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 819 | #ifdef CONFIG_IWLWIFI_DEBUG |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 820 | void iwl_print_rx_config_cmd(struct iwl_priv *priv, |
| 821 | struct iwl_rxon_context *ctx) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 822 | { |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 823 | struct iwl_rxon_cmd *rxon = &ctx->staging; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 824 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 825 | IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); |
Reinette Chatre | 3d816c7 | 2009-08-07 15:41:37 -0700 | [diff] [blame] | 826 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 827 | IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
| 828 | IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); |
| 829 | IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 830 | le32_to_cpu(rxon->filter_flags)); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 831 | IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); |
| 832 | IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 833 | rxon->ofdm_basic_rates); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 834 | IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); |
| 835 | IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); |
| 836 | IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); |
| 837 | IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 838 | } |
Reinette Chatre | 6686d17 | 2009-07-24 11:13:13 -0700 | [diff] [blame] | 839 | #endif |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 840 | |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 841 | static void iwlagn_abort_notification_waits(struct iwl_priv *priv) |
| 842 | { |
| 843 | unsigned long flags; |
| 844 | struct iwl_notification_wait *wait_entry; |
| 845 | |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 846 | spin_lock_irqsave(&priv->notif_wait_lock, flags); |
| 847 | list_for_each_entry(wait_entry, &priv->notif_waits, list) |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 848 | wait_entry->aborted = true; |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 849 | spin_unlock_irqrestore(&priv->notif_wait_lock, flags); |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 850 | |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 851 | wake_up_all(&priv->notif_waitq); |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 852 | } |
| 853 | |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 854 | void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 855 | { |
Wey-Yi Guy | 491bc29 | 2011-02-09 09:37:46 -0800 | [diff] [blame] | 856 | unsigned int reload_msec; |
| 857 | unsigned long reload_jiffies; |
| 858 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 859 | /* Set the FW error flag -- cleared on iwl_down */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 860 | set_bit(STATUS_FW_ERROR, &priv->shrd->status); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 861 | |
| 862 | /* Cancel currently queued command. */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 863 | clear_bit(STATUS_HCMD_ACTIVE, &priv->shrd->status); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 864 | |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 865 | iwlagn_abort_notification_waits(priv); |
| 866 | |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 867 | /* Keep the restart process from trying to send host |
| 868 | * commands by clearing the ready bit */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 869 | clear_bit(STATUS_READY, &priv->shrd->status); |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 870 | |
| 871 | wake_up_interruptible(&priv->wait_command_queue); |
| 872 | |
| 873 | if (!ondemand) { |
| 874 | /* |
| 875 | * If firmware keep reloading, then it indicate something |
| 876 | * serious wrong and firmware having problem to recover |
| 877 | * from it. Instead of keep trying which will fill the syslog |
| 878 | * and hang the system, let's just stop it |
| 879 | */ |
| 880 | reload_jiffies = jiffies; |
| 881 | reload_msec = jiffies_to_msecs((long) reload_jiffies - |
| 882 | (long) priv->reload_jiffies); |
| 883 | priv->reload_jiffies = reload_jiffies; |
| 884 | if (reload_msec <= IWL_MIN_RELOAD_DURATION) { |
| 885 | priv->reload_count++; |
| 886 | if (priv->reload_count >= IWL_MAX_CONTINUE_RELOAD_CNT) { |
| 887 | IWL_ERR(priv, "BUG_ON, Stop restarting\n"); |
| 888 | return; |
| 889 | } |
| 890 | } else |
| 891 | priv->reload_count = 0; |
| 892 | } |
| 893 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 894 | if (!test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { |
Don Fry | 9d143e9 | 2011-04-20 15:23:57 -0700 | [diff] [blame] | 895 | if (iwlagn_mod_params.restart_fw) { |
Emmanuel Grumbach | 9ca06f0 | 2011-08-25 23:10:46 -0700 | [diff] [blame^] | 896 | IWL_DEBUG_FW_ERRORS(priv, |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 897 | "Restarting adapter due to uCode error.\n"); |
Emmanuel Grumbach | 74e28e4 | 2011-08-25 23:10:41 -0700 | [diff] [blame] | 898 | queue_work(priv->shrd->workqueue, &priv->restart); |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 899 | } else |
Emmanuel Grumbach | 9ca06f0 | 2011-08-25 23:10:46 -0700 | [diff] [blame^] | 900 | IWL_DEBUG_FW_ERRORS(priv, |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 901 | "Detected FW error, but not restarting\n"); |
| 902 | } |
| 903 | } |
| 904 | |
| 905 | /** |
| 906 | * iwl_irq_handle_error - called for HW or SW error interrupt from card |
| 907 | */ |
| 908 | void iwl_irq_handle_error(struct iwl_priv *priv) |
| 909 | { |
Wey-Yi Guy | 50619ac | 2010-12-07 08:06:31 -0800 | [diff] [blame] | 910 | /* W/A for WiFi/WiMAX coex and WiMAX own the RF */ |
| 911 | if (priv->cfg->internal_wimax_coex && |
| 912 | (!(iwl_read_prph(priv, APMG_CLK_CTRL_REG) & |
| 913 | APMS_CLK_VAL_MRB_FUNC_MODE) || |
| 914 | (iwl_read_prph(priv, APMG_PS_CTRL_REG) & |
| 915 | APMG_PS_CTRL_VAL_RESET_REQ))) { |
Wey-Yi Guy | 50619ac | 2010-12-07 08:06:31 -0800 | [diff] [blame] | 916 | /* |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 917 | * Keep the restart process from trying to send host |
| 918 | * commands by clearing the ready bit. |
Wey-Yi Guy | 50619ac | 2010-12-07 08:06:31 -0800 | [diff] [blame] | 919 | */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 920 | clear_bit(STATUS_READY, &priv->shrd->status); |
| 921 | clear_bit(STATUS_HCMD_ACTIVE, &priv->shrd->status); |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 922 | wake_up_interruptible(&priv->wait_command_queue); |
Wey-Yi Guy | 50619ac | 2010-12-07 08:06:31 -0800 | [diff] [blame] | 923 | IWL_ERR(priv, "RF is used by WiMAX\n"); |
| 924 | return; |
| 925 | } |
| 926 | |
Shanyu Zhao | 459bc73 | 2010-04-27 22:05:15 -0700 | [diff] [blame] | 927 | IWL_ERR(priv, "Loaded firmware version: %s\n", |
| 928 | priv->hw->wiphy->fw_version); |
| 929 | |
Wey-Yi Guy | 3ecccbc | 2011-03-29 17:53:15 -0700 | [diff] [blame] | 930 | iwl_dump_nic_error_log(priv); |
| 931 | iwl_dump_csr(priv); |
| 932 | iwl_dump_fh(priv, NULL, false); |
| 933 | iwl_dump_nic_event_log(priv, false, NULL, false); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 934 | #ifdef CONFIG_IWLWIFI_DEBUG |
Emmanuel Grumbach | 8f470ce | 2011-08-25 23:10:38 -0700 | [diff] [blame] | 935 | if (iwl_get_debug_level(priv->shrd) & IWL_DL_FW_ERRORS) |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 936 | iwl_print_rx_config_cmd(priv, |
| 937 | &priv->contexts[IWL_RXON_CTX_BSS]); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 938 | #endif |
| 939 | |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 940 | iwlagn_fw_error(priv, false); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 941 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 942 | |
Reinette Chatre | f8e200d | 2010-02-19 11:41:32 -0800 | [diff] [blame] | 943 | static int iwl_apm_stop_master(struct iwl_priv *priv) |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 944 | { |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 945 | int ret = 0; |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 946 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 947 | /* stop device's busmaster DMA activity */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 948 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); |
| 949 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 950 | ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED, |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 951 | CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 952 | if (ret) |
| 953 | IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n"); |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 954 | |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 955 | IWL_DEBUG_INFO(priv, "stop master\n"); |
| 956 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 957 | return ret; |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 958 | } |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 959 | |
| 960 | void iwl_apm_stop(struct iwl_priv *priv) |
| 961 | { |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 962 | IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n"); |
| 963 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 964 | clear_bit(STATUS_DEVICE_ENABLED, &priv->shrd->status); |
Johannes Berg | 9d39e5b | 2011-04-19 07:38:23 -0700 | [diff] [blame] | 965 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 966 | /* Stop device's DMA activity */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 967 | iwl_apm_stop_master(priv); |
| 968 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 969 | /* Reset the entire device */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 970 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); |
| 971 | |
| 972 | udelay(10); |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 973 | |
| 974 | /* |
| 975 | * Clear "initialization complete" bit to move adapter from |
| 976 | * D0A* (powered-up Active) --> D0U* (Uninitialized) state. |
| 977 | */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 978 | iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 979 | } |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 980 | |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 981 | |
| 982 | /* |
| 983 | * Start up NIC's basic functionality after it has been reset |
| 984 | * (e.g. after platform boot, or shutdown via iwl_apm_stop()) |
| 985 | * NOTE: This does not load uCode nor start the embedded processor |
| 986 | */ |
| 987 | int iwl_apm_init(struct iwl_priv *priv) |
| 988 | { |
| 989 | int ret = 0; |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 990 | IWL_DEBUG_INFO(priv, "Init card's basic functions\n"); |
| 991 | |
| 992 | /* |
| 993 | * Use "set_bit" below rather than "write", to preserve any hardware |
| 994 | * bits already set by default after reset. |
| 995 | */ |
| 996 | |
| 997 | /* Disable L0S exit timer (platform NMI Work/Around) */ |
| 998 | iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
| 999 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); |
| 1000 | |
| 1001 | /* |
| 1002 | * Disable L0s without affecting L1; |
| 1003 | * don't wait for ICH L0s (ICH bug W/A) |
| 1004 | */ |
| 1005 | iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
| 1006 | CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); |
| 1007 | |
| 1008 | /* Set FH wait threshold to maximum (HW error during stress W/A) */ |
| 1009 | iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL); |
| 1010 | |
| 1011 | /* |
| 1012 | * Enable HAP INTA (interrupt from management bus) to |
| 1013 | * wake device's PCI Express link L1a -> L0s |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1014 | */ |
| 1015 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 1016 | CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); |
| 1017 | |
Emmanuel Grumbach | d593411 | 2011-07-11 10:48:51 +0300 | [diff] [blame] | 1018 | bus_apm_config(priv->bus); |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1019 | |
| 1020 | /* Configure analog phase-lock-loop before activating to D0A */ |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 1021 | if (priv->cfg->base_params->pll_cfg_val) |
| 1022 | iwl_set_bit(priv, CSR_ANA_PLL_CFG, |
| 1023 | priv->cfg->base_params->pll_cfg_val); |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1024 | |
| 1025 | /* |
| 1026 | * Set "initialization complete" bit to move adapter from |
| 1027 | * D0U* --> D0A* (powered-up active) state. |
| 1028 | */ |
| 1029 | iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
| 1030 | |
| 1031 | /* |
| 1032 | * Wait for clock stabilization; once stabilized, access to |
| 1033 | * device-internal resources is supported, e.g. iwl_write_prph() |
| 1034 | * and accesses to uCode SRAM. |
| 1035 | */ |
| 1036 | ret = iwl_poll_bit(priv, CSR_GP_CNTRL, |
| 1037 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, |
| 1038 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); |
| 1039 | if (ret < 0) { |
| 1040 | IWL_DEBUG_INFO(priv, "Failed to init the card\n"); |
| 1041 | goto out; |
| 1042 | } |
| 1043 | |
| 1044 | /* |
Johannes Berg | 917b677 | 2011-04-05 09:42:06 -0700 | [diff] [blame] | 1045 | * Enable DMA clock and wait for it to stabilize. |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1046 | * |
| 1047 | * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits |
| 1048 | * do not disable clocks. This preserves any hardware bits already |
| 1049 | * set by default in "CLK_CTRL_REG" after reset. |
| 1050 | */ |
Johannes Berg | 917b677 | 2011-04-05 09:42:06 -0700 | [diff] [blame] | 1051 | iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1052 | udelay(20); |
| 1053 | |
| 1054 | /* Disable L1-Active */ |
| 1055 | iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, |
| 1056 | APMG_PCIDEV_STT_VAL_L1_ACT_DIS); |
| 1057 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1058 | set_bit(STATUS_DEVICE_ENABLED, &priv->shrd->status); |
Johannes Berg | 9d39e5b | 2011-04-19 07:38:23 -0700 | [diff] [blame] | 1059 | |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1060 | out: |
| 1061 | return ret; |
| 1062 | } |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1063 | |
| 1064 | |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1065 | int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
| 1066 | { |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1067 | int ret; |
| 1068 | s8 prev_tx_power; |
Stanislaw Gruszka | f844a70 | 2011-01-28 16:47:44 +0100 | [diff] [blame] | 1069 | bool defer; |
| 1070 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1071 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1072 | lockdep_assert_held(&priv->shrd->mutex); |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1073 | |
| 1074 | if (priv->tx_power_user_lmt == tx_power && !force) |
| 1075 | return 0; |
| 1076 | |
Wey-Yi Guy | b744cb7 | 2010-03-23 11:37:59 -0700 | [diff] [blame] | 1077 | if (tx_power < IWLAGN_TX_POWER_TARGET_POWER_MIN) { |
| 1078 | IWL_WARN(priv, |
| 1079 | "Requested user TXPOWER %d below lower limit %d.\n", |
Wu, Fengguang | daf518d | 2009-02-13 11:51:17 -0800 | [diff] [blame] | 1080 | tx_power, |
Wey-Yi Guy | b744cb7 | 2010-03-23 11:37:59 -0700 | [diff] [blame] | 1081 | IWLAGN_TX_POWER_TARGET_POWER_MIN); |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1082 | return -EINVAL; |
| 1083 | } |
| 1084 | |
Wey-Yi Guy | dc1b097 | 2009-08-21 13:34:16 -0700 | [diff] [blame] | 1085 | if (tx_power > priv->tx_power_device_lmt) { |
Wey-Yi Guy | 08f2d58 | 2009-08-21 13:34:15 -0700 | [diff] [blame] | 1086 | IWL_WARN(priv, |
| 1087 | "Requested user TXPOWER %d above upper limit %d.\n", |
Wey-Yi Guy | dc1b097 | 2009-08-21 13:34:16 -0700 | [diff] [blame] | 1088 | tx_power, priv->tx_power_device_lmt); |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1089 | return -EINVAL; |
| 1090 | } |
| 1091 | |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1092 | if (!iwl_is_ready_rf(priv)) |
| 1093 | return -EIO; |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1094 | |
Stanislaw Gruszka | f844a70 | 2011-01-28 16:47:44 +0100 | [diff] [blame] | 1095 | /* scan complete and commit_rxon use tx_power_next value, |
| 1096 | * it always need to be updated for newest request */ |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1097 | priv->tx_power_next = tx_power; |
Stanislaw Gruszka | f844a70 | 2011-01-28 16:47:44 +0100 | [diff] [blame] | 1098 | |
| 1099 | /* do not set tx power when scanning or channel changing */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1100 | defer = test_bit(STATUS_SCANNING, &priv->shrd->status) || |
Stanislaw Gruszka | f844a70 | 2011-01-28 16:47:44 +0100 | [diff] [blame] | 1101 | memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)); |
| 1102 | if (defer && !force) { |
| 1103 | IWL_DEBUG_INFO(priv, "Deferring tx power set\n"); |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1104 | return 0; |
Wey-Yi Guy | 5eadd94 | 2009-08-21 13:34:17 -0700 | [diff] [blame] | 1105 | } |
Mohamed Abbas | 019fb97 | 2009-03-17 21:59:18 -0700 | [diff] [blame] | 1106 | |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1107 | prev_tx_power = priv->tx_power_user_lmt; |
| 1108 | priv->tx_power_user_lmt = tx_power; |
| 1109 | |
Wey-Yi Guy | 5beaaf3 | 2011-05-27 08:40:25 -0700 | [diff] [blame] | 1110 | ret = iwlagn_send_tx_power(priv); |
Stanislaw Gruszka | a25a66a | 2010-10-22 17:04:26 +0200 | [diff] [blame] | 1111 | |
| 1112 | /* if fail to set tx_power, restore the orig. tx power */ |
| 1113 | if (ret) { |
| 1114 | priv->tx_power_user_lmt = prev_tx_power; |
| 1115 | priv->tx_power_next = prev_tx_power; |
| 1116 | } |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1117 | return ret; |
| 1118 | } |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1119 | |
Johannes Berg | 65b52bd | 2010-04-13 01:04:31 -0700 | [diff] [blame] | 1120 | void iwl_send_bt_config(struct iwl_priv *priv) |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 1121 | { |
| 1122 | struct iwl_bt_cmd bt_cmd = { |
Wey-Yi Guy | 456d0f7 | 2009-10-23 13:42:23 -0700 | [diff] [blame] | 1123 | .lead_time = BT_LEAD_TIME_DEF, |
| 1124 | .max_kill = BT_MAX_KILL_DEF, |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 1125 | .kill_ack_mask = 0, |
| 1126 | .kill_cts_mask = 0, |
| 1127 | }; |
| 1128 | |
Wey-Yi Guy | b60eec9 | 2011-06-03 13:52:38 -0700 | [diff] [blame] | 1129 | if (!iwlagn_mod_params.bt_coex_active) |
Wey-Yi Guy | 06702a7 | 2010-01-22 14:22:51 -0800 | [diff] [blame] | 1130 | bt_cmd.flags = BT_COEX_DISABLE; |
| 1131 | else |
| 1132 | bt_cmd.flags = BT_COEX_ENABLE; |
| 1133 | |
Wey-Yi Guy | f21dd00 | 2010-12-08 15:34:52 -0800 | [diff] [blame] | 1134 | priv->bt_enable_flag = bt_cmd.flags; |
Wey-Yi Guy | 06702a7 | 2010-01-22 14:22:51 -0800 | [diff] [blame] | 1135 | IWL_DEBUG_INFO(priv, "BT coex %s\n", |
| 1136 | (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); |
| 1137 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 1138 | if (trans_send_cmd_pdu(&priv->trans, REPLY_BT_CONFIG, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 1139 | CMD_SYNC, sizeof(struct iwl_bt_cmd), &bt_cmd)) |
Johannes Berg | 65b52bd | 2010-04-13 01:04:31 -0700 | [diff] [blame] | 1140 | IWL_ERR(priv, "failed to send BT Coex Config\n"); |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 1141 | } |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 1142 | |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 1143 | int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 1144 | { |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 1145 | struct iwl_statistics_cmd statistics_cmd = { |
| 1146 | .configuration_flags = |
| 1147 | clear ? IWL_STATS_CONF_CLEAR_STATS : 0, |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 1148 | }; |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 1149 | |
| 1150 | if (flags & CMD_ASYNC) |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 1151 | return trans_send_cmd_pdu(&priv->trans, REPLY_STATISTICS_CMD, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 1152 | CMD_ASYNC, |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 1153 | sizeof(struct iwl_statistics_cmd), |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 1154 | &statistics_cmd); |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 1155 | else |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 1156 | return trans_send_cmd_pdu(&priv->trans, REPLY_STATISTICS_CMD, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 1157 | CMD_SYNC, |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 1158 | sizeof(struct iwl_statistics_cmd), |
| 1159 | &statistics_cmd); |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 1160 | } |
Tomas Winkler | 7e8c519 | 2008-04-15 16:01:43 -0700 | [diff] [blame] | 1161 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1162 | void iwl_clear_isr_stats(struct iwl_priv *priv) |
| 1163 | { |
| 1164 | memset(&priv->isr_stats, 0, sizeof(priv->isr_stats)); |
| 1165 | } |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 1166 | |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 1167 | int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
| 1168 | const struct ieee80211_tx_queue_params *params) |
| 1169 | { |
| 1170 | struct iwl_priv *priv = hw->priv; |
Johannes Berg | 8dfdb9d | 2010-08-23 10:46:38 +0200 | [diff] [blame] | 1171 | struct iwl_rxon_context *ctx; |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 1172 | unsigned long flags; |
| 1173 | int q; |
| 1174 | |
| 1175 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1176 | |
| 1177 | if (!iwl_is_ready_rf(priv)) { |
| 1178 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| 1179 | return -EIO; |
| 1180 | } |
| 1181 | |
| 1182 | if (queue >= AC_NUM) { |
| 1183 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); |
| 1184 | return 0; |
| 1185 | } |
| 1186 | |
| 1187 | q = AC_NUM - 1 - queue; |
| 1188 | |
Emmanuel Grumbach | 10b15e6 | 2011-08-25 23:10:43 -0700 | [diff] [blame] | 1189 | spin_lock_irqsave(&priv->shrd->lock, flags); |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 1190 | |
Johannes Berg | 8dfdb9d | 2010-08-23 10:46:38 +0200 | [diff] [blame] | 1191 | /* |
| 1192 | * MULTI-FIXME |
| 1193 | * This may need to be done per interface in nl80211/cfg80211/mac80211. |
| 1194 | */ |
| 1195 | for_each_context(priv, ctx) { |
| 1196 | ctx->qos_data.def_qos_parm.ac[q].cw_min = |
| 1197 | cpu_to_le16(params->cw_min); |
| 1198 | ctx->qos_data.def_qos_parm.ac[q].cw_max = |
| 1199 | cpu_to_le16(params->cw_max); |
| 1200 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; |
| 1201 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = |
| 1202 | cpu_to_le16((params->txop * 32)); |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 1203 | |
Johannes Berg | 8dfdb9d | 2010-08-23 10:46:38 +0200 | [diff] [blame] | 1204 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; |
| 1205 | } |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 1206 | |
Emmanuel Grumbach | 10b15e6 | 2011-08-25 23:10:43 -0700 | [diff] [blame] | 1207 | spin_unlock_irqrestore(&priv->shrd->lock, flags); |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 1208 | |
| 1209 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1210 | return 0; |
| 1211 | } |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1212 | |
Johannes Berg | a85d7cc | 2010-07-31 08:34:10 -0700 | [diff] [blame] | 1213 | int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw) |
| 1214 | { |
| 1215 | struct iwl_priv *priv = hw->priv; |
| 1216 | |
| 1217 | return priv->ibss_manager == IWL_IBSS_MANAGER; |
| 1218 | } |
Johannes Berg | a85d7cc | 2010-07-31 08:34:10 -0700 | [diff] [blame] | 1219 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1220 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 1221 | { |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 1222 | iwl_connection_init_rx_config(priv, ctx); |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 1223 | |
Wey-Yi Guy | e3f10ce | 2011-07-01 07:59:26 -0700 | [diff] [blame] | 1224 | iwlagn_set_rxon_chain(priv, ctx); |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 1225 | |
Wey-Yi Guy | 805a3b8 | 2011-06-03 07:54:16 -0700 | [diff] [blame] | 1226 | return iwlagn_commit_rxon(priv, ctx); |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 1227 | } |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 1228 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1229 | static int iwl_setup_interface(struct iwl_priv *priv, |
| 1230 | struct iwl_rxon_context *ctx) |
| 1231 | { |
| 1232 | struct ieee80211_vif *vif = ctx->vif; |
| 1233 | int err; |
| 1234 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1235 | lockdep_assert_held(&priv->shrd->mutex); |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1236 | |
| 1237 | /* |
| 1238 | * This variable will be correct only when there's just |
| 1239 | * a single context, but all code using it is for hardware |
| 1240 | * that supports only one context. |
| 1241 | */ |
| 1242 | priv->iw_mode = vif->type; |
| 1243 | |
| 1244 | ctx->is_active = true; |
| 1245 | |
| 1246 | err = iwl_set_mode(priv, ctx); |
| 1247 | if (err) { |
| 1248 | if (!ctx->always_active) |
| 1249 | ctx->is_active = false; |
| 1250 | return err; |
| 1251 | } |
| 1252 | |
| 1253 | if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist && |
| 1254 | vif->type == NL80211_IFTYPE_ADHOC) { |
| 1255 | /* |
| 1256 | * pretend to have high BT traffic as long as we |
| 1257 | * are operating in IBSS mode, as this will cause |
| 1258 | * the rate scaling etc. to behave as intended. |
| 1259 | */ |
| 1260 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; |
| 1261 | } |
| 1262 | |
| 1263 | return 0; |
| 1264 | } |
| 1265 | |
Johannes Berg | b55e75e | 2010-02-17 04:54:08 -0800 | [diff] [blame] | 1266 | int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1267 | { |
| 1268 | struct iwl_priv *priv = hw->priv; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1269 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 1270 | struct iwl_rxon_context *tmp, *ctx = NULL; |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1271 | int err; |
Wey-Yi Guy | f35c0c5 | 2011-01-13 17:09:29 -0800 | [diff] [blame] | 1272 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1273 | |
Johannes Berg | 3779db1 | 2010-05-14 06:25:58 -0700 | [diff] [blame] | 1274 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", |
Wey-Yi Guy | f35c0c5 | 2011-01-13 17:09:29 -0800 | [diff] [blame] | 1275 | viftype, vif->addr); |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1276 | |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1277 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); |
| 1278 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1279 | mutex_lock(&priv->shrd->mutex); |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 1280 | |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1281 | iwlagn_disable_roc(priv); |
| 1282 | |
Stanislaw Gruszka | 4bd530f | 2010-09-30 16:27:35 +0200 | [diff] [blame] | 1283 | if (!iwl_is_ready_rf(priv)) { |
| 1284 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
Johannes Berg | b55e75e | 2010-02-17 04:54:08 -0800 | [diff] [blame] | 1285 | err = -EINVAL; |
| 1286 | goto out; |
| 1287 | } |
| 1288 | |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 1289 | for_each_context(priv, tmp) { |
| 1290 | u32 possible_modes = |
| 1291 | tmp->interface_modes | tmp->exclusive_interface_modes; |
| 1292 | |
| 1293 | if (tmp->vif) { |
| 1294 | /* check if this busy context is exclusive */ |
| 1295 | if (tmp->exclusive_interface_modes & |
| 1296 | BIT(tmp->vif->type)) { |
| 1297 | err = -EINVAL; |
| 1298 | goto out; |
| 1299 | } |
| 1300 | continue; |
| 1301 | } |
| 1302 | |
Wey-Yi Guy | f35c0c5 | 2011-01-13 17:09:29 -0800 | [diff] [blame] | 1303 | if (!(possible_modes & BIT(viftype))) |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 1304 | continue; |
| 1305 | |
| 1306 | /* have maybe usable context w/o interface */ |
| 1307 | ctx = tmp; |
| 1308 | break; |
| 1309 | } |
| 1310 | |
| 1311 | if (!ctx) { |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 1312 | err = -EOPNOTSUPP; |
| 1313 | goto out; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1314 | } |
| 1315 | |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 1316 | vif_priv->ctx = ctx; |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 1317 | ctx->vif = vif; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1318 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1319 | err = iwl_setup_interface(priv, ctx); |
| 1320 | if (!err) |
| 1321 | goto out; |
Johannes Berg | 763cc3b | 2010-09-03 06:32:21 -0700 | [diff] [blame] | 1322 | |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 1323 | ctx->vif = NULL; |
Johannes Berg | b55e75e | 2010-02-17 04:54:08 -0800 | [diff] [blame] | 1324 | priv->iw_mode = NL80211_IFTYPE_STATION; |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 1325 | out: |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1326 | mutex_unlock(&priv->shrd->mutex); |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1327 | |
| 1328 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 1329 | return err; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1330 | } |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 1331 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1332 | static void iwl_teardown_interface(struct iwl_priv *priv, |
| 1333 | struct ieee80211_vif *vif, |
| 1334 | bool mode_change) |
| 1335 | { |
| 1336 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
| 1337 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1338 | lockdep_assert_held(&priv->shrd->mutex); |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1339 | |
| 1340 | if (priv->scan_vif == vif) { |
| 1341 | iwl_scan_cancel_timeout(priv, 200); |
| 1342 | iwl_force_scan_end(priv); |
| 1343 | } |
| 1344 | |
| 1345 | if (!mode_change) { |
| 1346 | iwl_set_mode(priv, ctx); |
| 1347 | if (!ctx->always_active) |
| 1348 | ctx->is_active = false; |
| 1349 | } |
| 1350 | |
| 1351 | /* |
| 1352 | * When removing the IBSS interface, overwrite the |
| 1353 | * BT traffic load with the stored one from the last |
| 1354 | * notification, if any. If this is a device that |
| 1355 | * doesn't implement this, this has no effect since |
| 1356 | * both values are the same and zero. |
| 1357 | */ |
| 1358 | if (vif->type == NL80211_IFTYPE_ADHOC) |
Wey-Yi Guy | 66e863a5 | 2010-11-08 14:54:37 -0800 | [diff] [blame] | 1359 | priv->bt_traffic_load = priv->last_bt_traffic_load; |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1360 | } |
| 1361 | |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 1362 | void iwl_mac_remove_interface(struct ieee80211_hw *hw, |
Johannes Berg | b55e75e | 2010-02-17 04:54:08 -0800 | [diff] [blame] | 1363 | struct ieee80211_vif *vif) |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 1364 | { |
| 1365 | struct iwl_priv *priv = hw->priv; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1366 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 1367 | |
| 1368 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1369 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1370 | mutex_lock(&priv->shrd->mutex); |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 1371 | |
Johannes Berg | d0fe478 | 2010-08-23 10:46:58 +0200 | [diff] [blame] | 1372 | WARN_ON(ctx->vif != vif); |
| 1373 | ctx->vif = NULL; |
| 1374 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1375 | iwl_teardown_interface(priv, vif, false); |
Johannes Berg | 59079949 | 2010-08-23 07:57:00 -0700 | [diff] [blame] | 1376 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1377 | mutex_unlock(&priv->shrd->mutex); |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 1378 | |
| 1379 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1380 | |
| 1381 | } |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 1382 | |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1383 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 1384 | |
| 1385 | #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES) |
| 1386 | |
| 1387 | void iwl_reset_traffic_log(struct iwl_priv *priv) |
| 1388 | { |
| 1389 | priv->tx_traffic_idx = 0; |
| 1390 | priv->rx_traffic_idx = 0; |
| 1391 | if (priv->tx_traffic) |
| 1392 | memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); |
| 1393 | if (priv->rx_traffic) |
| 1394 | memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); |
| 1395 | } |
| 1396 | |
| 1397 | int iwl_alloc_traffic_mem(struct iwl_priv *priv) |
| 1398 | { |
| 1399 | u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE; |
| 1400 | |
Emmanuel Grumbach | 8f470ce | 2011-08-25 23:10:38 -0700 | [diff] [blame] | 1401 | if (iwl_get_debug_level(priv->shrd) & IWL_DL_TX) { |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1402 | if (!priv->tx_traffic) { |
| 1403 | priv->tx_traffic = |
| 1404 | kzalloc(traffic_size, GFP_KERNEL); |
| 1405 | if (!priv->tx_traffic) |
| 1406 | return -ENOMEM; |
| 1407 | } |
| 1408 | } |
Emmanuel Grumbach | 8f470ce | 2011-08-25 23:10:38 -0700 | [diff] [blame] | 1409 | if (iwl_get_debug_level(priv->shrd) & IWL_DL_RX) { |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1410 | if (!priv->rx_traffic) { |
| 1411 | priv->rx_traffic = |
| 1412 | kzalloc(traffic_size, GFP_KERNEL); |
| 1413 | if (!priv->rx_traffic) |
| 1414 | return -ENOMEM; |
| 1415 | } |
| 1416 | } |
| 1417 | iwl_reset_traffic_log(priv); |
| 1418 | return 0; |
| 1419 | } |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1420 | |
| 1421 | void iwl_free_traffic_mem(struct iwl_priv *priv) |
| 1422 | { |
| 1423 | kfree(priv->tx_traffic); |
| 1424 | priv->tx_traffic = NULL; |
| 1425 | |
| 1426 | kfree(priv->rx_traffic); |
| 1427 | priv->rx_traffic = NULL; |
| 1428 | } |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1429 | |
| 1430 | void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv, |
| 1431 | u16 length, struct ieee80211_hdr *header) |
| 1432 | { |
| 1433 | __le16 fc; |
| 1434 | u16 len; |
| 1435 | |
Emmanuel Grumbach | 8f470ce | 2011-08-25 23:10:38 -0700 | [diff] [blame] | 1436 | if (likely(!(iwl_get_debug_level(priv->shrd) & IWL_DL_TX))) |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1437 | return; |
| 1438 | |
| 1439 | if (!priv->tx_traffic) |
| 1440 | return; |
| 1441 | |
| 1442 | fc = header->frame_control; |
| 1443 | if (ieee80211_is_data(fc)) { |
| 1444 | len = (length > IWL_TRAFFIC_ENTRY_SIZE) |
| 1445 | ? IWL_TRAFFIC_ENTRY_SIZE : length; |
| 1446 | memcpy((priv->tx_traffic + |
| 1447 | (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), |
| 1448 | header, len); |
| 1449 | priv->tx_traffic_idx = |
| 1450 | (priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; |
| 1451 | } |
| 1452 | } |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1453 | |
| 1454 | void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv, |
| 1455 | u16 length, struct ieee80211_hdr *header) |
| 1456 | { |
| 1457 | __le16 fc; |
| 1458 | u16 len; |
| 1459 | |
Emmanuel Grumbach | 8f470ce | 2011-08-25 23:10:38 -0700 | [diff] [blame] | 1460 | if (likely(!(iwl_get_debug_level(priv->shrd) & IWL_DL_RX))) |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1461 | return; |
| 1462 | |
| 1463 | if (!priv->rx_traffic) |
| 1464 | return; |
| 1465 | |
| 1466 | fc = header->frame_control; |
| 1467 | if (ieee80211_is_data(fc)) { |
| 1468 | len = (length > IWL_TRAFFIC_ENTRY_SIZE) |
| 1469 | ? IWL_TRAFFIC_ENTRY_SIZE : length; |
| 1470 | memcpy((priv->rx_traffic + |
| 1471 | (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), |
| 1472 | header, len); |
| 1473 | priv->rx_traffic_idx = |
| 1474 | (priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; |
| 1475 | } |
| 1476 | } |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 1477 | |
| 1478 | const char *get_mgmt_string(int cmd) |
| 1479 | { |
| 1480 | switch (cmd) { |
| 1481 | IWL_CMD(MANAGEMENT_ASSOC_REQ); |
| 1482 | IWL_CMD(MANAGEMENT_ASSOC_RESP); |
| 1483 | IWL_CMD(MANAGEMENT_REASSOC_REQ); |
| 1484 | IWL_CMD(MANAGEMENT_REASSOC_RESP); |
| 1485 | IWL_CMD(MANAGEMENT_PROBE_REQ); |
| 1486 | IWL_CMD(MANAGEMENT_PROBE_RESP); |
| 1487 | IWL_CMD(MANAGEMENT_BEACON); |
| 1488 | IWL_CMD(MANAGEMENT_ATIM); |
| 1489 | IWL_CMD(MANAGEMENT_DISASSOC); |
| 1490 | IWL_CMD(MANAGEMENT_AUTH); |
| 1491 | IWL_CMD(MANAGEMENT_DEAUTH); |
| 1492 | IWL_CMD(MANAGEMENT_ACTION); |
| 1493 | default: |
| 1494 | return "UNKNOWN"; |
| 1495 | |
| 1496 | } |
| 1497 | } |
| 1498 | |
| 1499 | const char *get_ctrl_string(int cmd) |
| 1500 | { |
| 1501 | switch (cmd) { |
| 1502 | IWL_CMD(CONTROL_BACK_REQ); |
| 1503 | IWL_CMD(CONTROL_BACK); |
| 1504 | IWL_CMD(CONTROL_PSPOLL); |
| 1505 | IWL_CMD(CONTROL_RTS); |
| 1506 | IWL_CMD(CONTROL_CTS); |
| 1507 | IWL_CMD(CONTROL_ACK); |
| 1508 | IWL_CMD(CONTROL_CFEND); |
| 1509 | IWL_CMD(CONTROL_CFENDACK); |
| 1510 | default: |
| 1511 | return "UNKNOWN"; |
| 1512 | |
| 1513 | } |
| 1514 | } |
| 1515 | |
Wey-Yi Guy | 7163b8a | 2009-11-20 12:04:56 -0800 | [diff] [blame] | 1516 | void iwl_clear_traffic_stats(struct iwl_priv *priv) |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 1517 | { |
| 1518 | memset(&priv->tx_stats, 0, sizeof(struct traffic_stats)); |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 1519 | memset(&priv->rx_stats, 0, sizeof(struct traffic_stats)); |
| 1520 | } |
| 1521 | |
| 1522 | /* |
| 1523 | * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will |
| 1524 | * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass. |
| 1525 | * Use debugFs to display the rx/rx_statistics |
| 1526 | * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL |
| 1527 | * information will be recorded, but DATA pkt still will be recorded |
| 1528 | * for the reason of iwl_led.c need to control the led blinking based on |
| 1529 | * number of tx and rx data. |
| 1530 | * |
| 1531 | */ |
| 1532 | void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len) |
| 1533 | { |
| 1534 | struct traffic_stats *stats; |
| 1535 | |
| 1536 | if (is_tx) |
| 1537 | stats = &priv->tx_stats; |
| 1538 | else |
| 1539 | stats = &priv->rx_stats; |
| 1540 | |
| 1541 | if (ieee80211_is_mgmt(fc)) { |
| 1542 | switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { |
| 1543 | case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): |
| 1544 | stats->mgmt[MANAGEMENT_ASSOC_REQ]++; |
| 1545 | break; |
| 1546 | case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): |
| 1547 | stats->mgmt[MANAGEMENT_ASSOC_RESP]++; |
| 1548 | break; |
| 1549 | case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): |
| 1550 | stats->mgmt[MANAGEMENT_REASSOC_REQ]++; |
| 1551 | break; |
| 1552 | case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): |
| 1553 | stats->mgmt[MANAGEMENT_REASSOC_RESP]++; |
| 1554 | break; |
| 1555 | case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ): |
| 1556 | stats->mgmt[MANAGEMENT_PROBE_REQ]++; |
| 1557 | break; |
| 1558 | case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP): |
| 1559 | stats->mgmt[MANAGEMENT_PROBE_RESP]++; |
| 1560 | break; |
| 1561 | case cpu_to_le16(IEEE80211_STYPE_BEACON): |
| 1562 | stats->mgmt[MANAGEMENT_BEACON]++; |
| 1563 | break; |
| 1564 | case cpu_to_le16(IEEE80211_STYPE_ATIM): |
| 1565 | stats->mgmt[MANAGEMENT_ATIM]++; |
| 1566 | break; |
| 1567 | case cpu_to_le16(IEEE80211_STYPE_DISASSOC): |
| 1568 | stats->mgmt[MANAGEMENT_DISASSOC]++; |
| 1569 | break; |
| 1570 | case cpu_to_le16(IEEE80211_STYPE_AUTH): |
| 1571 | stats->mgmt[MANAGEMENT_AUTH]++; |
| 1572 | break; |
| 1573 | case cpu_to_le16(IEEE80211_STYPE_DEAUTH): |
| 1574 | stats->mgmt[MANAGEMENT_DEAUTH]++; |
| 1575 | break; |
| 1576 | case cpu_to_le16(IEEE80211_STYPE_ACTION): |
| 1577 | stats->mgmt[MANAGEMENT_ACTION]++; |
| 1578 | break; |
| 1579 | } |
| 1580 | } else if (ieee80211_is_ctl(fc)) { |
| 1581 | switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { |
| 1582 | case cpu_to_le16(IEEE80211_STYPE_BACK_REQ): |
| 1583 | stats->ctrl[CONTROL_BACK_REQ]++; |
| 1584 | break; |
| 1585 | case cpu_to_le16(IEEE80211_STYPE_BACK): |
| 1586 | stats->ctrl[CONTROL_BACK]++; |
| 1587 | break; |
| 1588 | case cpu_to_le16(IEEE80211_STYPE_PSPOLL): |
| 1589 | stats->ctrl[CONTROL_PSPOLL]++; |
| 1590 | break; |
| 1591 | case cpu_to_le16(IEEE80211_STYPE_RTS): |
| 1592 | stats->ctrl[CONTROL_RTS]++; |
| 1593 | break; |
| 1594 | case cpu_to_le16(IEEE80211_STYPE_CTS): |
| 1595 | stats->ctrl[CONTROL_CTS]++; |
| 1596 | break; |
| 1597 | case cpu_to_le16(IEEE80211_STYPE_ACK): |
| 1598 | stats->ctrl[CONTROL_ACK]++; |
| 1599 | break; |
| 1600 | case cpu_to_le16(IEEE80211_STYPE_CFEND): |
| 1601 | stats->ctrl[CONTROL_CFEND]++; |
| 1602 | break; |
| 1603 | case cpu_to_le16(IEEE80211_STYPE_CFENDACK): |
| 1604 | stats->ctrl[CONTROL_CFENDACK]++; |
| 1605 | break; |
| 1606 | } |
| 1607 | } else { |
| 1608 | /* data */ |
| 1609 | stats->data_cnt++; |
| 1610 | stats->data_bytes += len; |
| 1611 | } |
| 1612 | } |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 1613 | #endif |
| 1614 | |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1615 | static void iwl_force_rf_reset(struct iwl_priv *priv) |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 1616 | { |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1617 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 1618 | return; |
| 1619 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1620 | if (!iwl_is_any_associated(priv)) { |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 1621 | IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n"); |
| 1622 | return; |
| 1623 | } |
| 1624 | /* |
| 1625 | * There is no easy and better way to force reset the radio, |
| 1626 | * the only known method is switching channel which will force to |
| 1627 | * reset and tune the radio. |
| 1628 | * Use internal short scan (single channel) operation to should |
| 1629 | * achieve this objective. |
| 1630 | * Driver should reset the radio when number of consecutive missed |
| 1631 | * beacon, or any other uCode error condition detected. |
| 1632 | */ |
| 1633 | IWL_DEBUG_INFO(priv, "perform radio reset.\n"); |
| 1634 | iwl_internal_short_hw_scan(priv); |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 1635 | } |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1636 | |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1637 | |
Wey-Yi Guy | c04f9f2 | 2010-06-21 16:52:55 -0700 | [diff] [blame] | 1638 | int iwl_force_reset(struct iwl_priv *priv, int mode, bool external) |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1639 | { |
Wey-Yi Guy | 8a472da | 2010-02-18 22:03:06 -0800 | [diff] [blame] | 1640 | struct iwl_force_reset *force_reset; |
| 1641 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1642 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1643 | return -EINVAL; |
| 1644 | |
Wey-Yi Guy | 8a472da | 2010-02-18 22:03:06 -0800 | [diff] [blame] | 1645 | if (mode >= IWL_MAX_FORCE_RESET) { |
| 1646 | IWL_DEBUG_INFO(priv, "invalid reset request.\n"); |
| 1647 | return -EINVAL; |
| 1648 | } |
| 1649 | force_reset = &priv->force_reset[mode]; |
| 1650 | force_reset->reset_request_count++; |
Wey-Yi Guy | c04f9f2 | 2010-06-21 16:52:55 -0700 | [diff] [blame] | 1651 | if (!external) { |
| 1652 | if (force_reset->last_force_reset_jiffies && |
| 1653 | time_after(force_reset->last_force_reset_jiffies + |
| 1654 | force_reset->reset_duration, jiffies)) { |
| 1655 | IWL_DEBUG_INFO(priv, "force reset rejected\n"); |
| 1656 | force_reset->reset_reject_count++; |
| 1657 | return -EAGAIN; |
| 1658 | } |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1659 | } |
Wey-Yi Guy | 8a472da | 2010-02-18 22:03:06 -0800 | [diff] [blame] | 1660 | force_reset->reset_success_count++; |
| 1661 | force_reset->last_force_reset_jiffies = jiffies; |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1662 | IWL_DEBUG_INFO(priv, "perform force reset (%d)\n", mode); |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1663 | switch (mode) { |
| 1664 | case IWL_RF_RESET: |
| 1665 | iwl_force_rf_reset(priv); |
| 1666 | break; |
| 1667 | case IWL_FW_RESET: |
Wey-Yi Guy | c04f9f2 | 2010-06-21 16:52:55 -0700 | [diff] [blame] | 1668 | /* |
| 1669 | * if the request is from external(ex: debugfs), |
| 1670 | * then always perform the request in regardless the module |
| 1671 | * parameter setting |
| 1672 | * if the request is from internal (uCode error or driver |
| 1673 | * detect failure), then fw_restart module parameter |
| 1674 | * need to be check before performing firmware reload |
| 1675 | */ |
Don Fry | 9d143e9 | 2011-04-20 15:23:57 -0700 | [diff] [blame] | 1676 | if (!external && !iwlagn_mod_params.restart_fw) { |
Wey-Yi Guy | c04f9f2 | 2010-06-21 16:52:55 -0700 | [diff] [blame] | 1677 | IWL_DEBUG_INFO(priv, "Cancel firmware reload based on " |
| 1678 | "module parameter setting\n"); |
| 1679 | break; |
| 1680 | } |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1681 | IWL_ERR(priv, "On demand firmware reload\n"); |
Johannes Berg | e649437 | 2011-04-05 09:41:58 -0700 | [diff] [blame] | 1682 | iwlagn_fw_error(priv, true); |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1683 | break; |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1684 | } |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 1685 | return 0; |
| 1686 | } |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1687 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1688 | int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 1689 | enum nl80211_iftype newtype, bool newp2p) |
| 1690 | { |
| 1691 | struct iwl_priv *priv = hw->priv; |
| 1692 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
Johannes Berg | ebf8dc8 | 2011-04-27 05:19:34 -0700 | [diff] [blame] | 1693 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1694 | struct iwl_rxon_context *tmp; |
Johannes Berg | 5306c08 | 2011-06-21 08:28:31 -0700 | [diff] [blame] | 1695 | enum nl80211_iftype newviftype = newtype; |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1696 | u32 interface_modes; |
| 1697 | int err; |
| 1698 | |
| 1699 | newtype = ieee80211_iftype_p2p(newtype, newp2p); |
| 1700 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1701 | mutex_lock(&priv->shrd->mutex); |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1702 | |
Johannes Berg | a2b76b3 | 2011-03-29 06:29:37 -0700 | [diff] [blame] | 1703 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
| 1704 | /* |
| 1705 | * Huh? But wait ... this can maybe happen when |
| 1706 | * we're in the middle of a firmware restart! |
| 1707 | */ |
| 1708 | err = -EBUSY; |
| 1709 | goto out; |
| 1710 | } |
| 1711 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1712 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; |
| 1713 | |
| 1714 | if (!(interface_modes & BIT(newtype))) { |
| 1715 | err = -EBUSY; |
| 1716 | goto out; |
| 1717 | } |
| 1718 | |
Johannes Berg | ebf8dc8 | 2011-04-27 05:19:34 -0700 | [diff] [blame] | 1719 | /* |
| 1720 | * Refuse a change that should be done by moving from the PAN |
| 1721 | * context to the BSS context instead, if the BSS context is |
| 1722 | * available and can support the new interface type. |
| 1723 | */ |
| 1724 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && |
| 1725 | (bss_ctx->interface_modes & BIT(newtype) || |
| 1726 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { |
| 1727 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
| 1728 | err = -EBUSY; |
| 1729 | goto out; |
| 1730 | } |
| 1731 | |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1732 | if (ctx->exclusive_interface_modes & BIT(newtype)) { |
| 1733 | for_each_context(priv, tmp) { |
| 1734 | if (ctx == tmp) |
| 1735 | continue; |
| 1736 | |
| 1737 | if (!tmp->vif) |
| 1738 | continue; |
| 1739 | |
| 1740 | /* |
| 1741 | * The current mode switch would be exclusive, but |
| 1742 | * another context is active ... refuse the switch. |
| 1743 | */ |
| 1744 | err = -EBUSY; |
| 1745 | goto out; |
| 1746 | } |
| 1747 | } |
| 1748 | |
| 1749 | /* success */ |
| 1750 | iwl_teardown_interface(priv, vif, true); |
Johannes Berg | 5306c08 | 2011-06-21 08:28:31 -0700 | [diff] [blame] | 1751 | vif->type = newviftype; |
Johannes Berg | a2b76b3 | 2011-03-29 06:29:37 -0700 | [diff] [blame] | 1752 | vif->p2p = newp2p; |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1753 | err = iwl_setup_interface(priv, ctx); |
| 1754 | WARN_ON(err); |
| 1755 | /* |
| 1756 | * We've switched internally, but submitting to the |
| 1757 | * device may have failed for some reason. Mask this |
| 1758 | * error, because otherwise mac80211 will not switch |
| 1759 | * (and set the interface type back) and we'll be |
| 1760 | * out of sync with it. |
| 1761 | */ |
| 1762 | err = 0; |
| 1763 | |
| 1764 | out: |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1765 | mutex_unlock(&priv->shrd->mutex); |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1766 | return err; |
| 1767 | } |
Johannes Berg | d4daaea | 2010-10-23 09:15:43 -0700 | [diff] [blame] | 1768 | |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1769 | /* |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1770 | * On every watchdog tick we check (latest) time stamp. If it does not |
| 1771 | * change during timeout period and queue is not empty we reset firmware. |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1772 | */ |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1773 | static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt) |
| 1774 | { |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1775 | struct iwl_tx_queue *txq = &priv->txq[cnt]; |
| 1776 | struct iwl_queue *q = &txq->q; |
| 1777 | unsigned long timeout; |
| 1778 | int ret; |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1779 | |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1780 | if (q->read_ptr == q->write_ptr) { |
| 1781 | txq->time_stamp = jiffies; |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 1782 | return 0; |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1783 | } |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1784 | |
| 1785 | timeout = txq->time_stamp + |
| 1786 | msecs_to_jiffies(priv->cfg->base_params->wd_timeout); |
| 1787 | |
| 1788 | if (time_after(jiffies, timeout)) { |
| 1789 | IWL_ERR(priv, "Queue %d stuck for %u ms.\n", |
| 1790 | q->id, priv->cfg->base_params->wd_timeout); |
| 1791 | ret = iwl_force_reset(priv, IWL_FW_RESET, false); |
| 1792 | return (ret == -EAGAIN) ? 0 : 1; |
| 1793 | } |
| 1794 | |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1795 | return 0; |
| 1796 | } |
| 1797 | |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1798 | /* |
| 1799 | * Making watchdog tick be a quarter of timeout assure we will |
| 1800 | * discover the queue hung between timeout and 1.25*timeout |
| 1801 | */ |
| 1802 | #define IWL_WD_TICK(timeout) ((timeout) / 4) |
| 1803 | |
| 1804 | /* |
| 1805 | * Watchdog timer callback, we check each tx queue for stuck, if if hung |
| 1806 | * we reset the firmware. If everything is fine just rearm the timer. |
| 1807 | */ |
| 1808 | void iwl_bg_watchdog(unsigned long data) |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1809 | { |
| 1810 | struct iwl_priv *priv = (struct iwl_priv *)data; |
| 1811 | int cnt; |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1812 | unsigned long timeout; |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1813 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1814 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1815 | return; |
| 1816 | |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1817 | timeout = priv->cfg->base_params->wd_timeout; |
| 1818 | if (timeout == 0) |
| 1819 | return; |
| 1820 | |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1821 | /* monitor and check for stuck cmd queue */ |
Emmanuel Grumbach | cefeaa5 | 2011-08-25 23:10:40 -0700 | [diff] [blame] | 1822 | if (iwl_check_stuck_queue(priv, priv->shrd->cmd_queue)) |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1823 | return; |
| 1824 | |
| 1825 | /* monitor and check for other stuck queues */ |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1826 | if (iwl_is_any_associated(priv)) { |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1827 | for (cnt = 0; cnt < hw_params(priv).max_txq_num; cnt++) { |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1828 | /* skip as we already checked the command queue */ |
Emmanuel Grumbach | cefeaa5 | 2011-08-25 23:10:40 -0700 | [diff] [blame] | 1829 | if (cnt == priv->shrd->cmd_queue) |
Wey-Yi Guy | b74e31a | 2010-03-01 17:23:50 -0800 | [diff] [blame] | 1830 | continue; |
| 1831 | if (iwl_check_stuck_queue(priv, cnt)) |
| 1832 | return; |
| 1833 | } |
| 1834 | } |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 1835 | |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1836 | mod_timer(&priv->watchdog, jiffies + |
| 1837 | msecs_to_jiffies(IWL_WD_TICK(timeout))); |
| 1838 | } |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1839 | |
| 1840 | void iwl_setup_watchdog(struct iwl_priv *priv) |
| 1841 | { |
| 1842 | unsigned int timeout = priv->cfg->base_params->wd_timeout; |
| 1843 | |
Wey-Yi Guy | 300d083 | 2011-06-25 09:17:41 -0700 | [diff] [blame] | 1844 | if (timeout && !iwlagn_mod_params.wd_disable) |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 1845 | mod_timer(&priv->watchdog, |
| 1846 | jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout))); |
| 1847 | else |
| 1848 | del_timer(&priv->watchdog); |
| 1849 | } |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1850 | |
| 1851 | /* |
| 1852 | * extended beacon time format |
| 1853 | * time in usec will be changed into a 32-bit value in extended:internal format |
| 1854 | * the extended part is the beacon counts |
| 1855 | * the internal part is the time in usec within one beacon interval |
| 1856 | */ |
| 1857 | u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval) |
| 1858 | { |
| 1859 | u32 quot; |
| 1860 | u32 rem; |
| 1861 | u32 interval = beacon_interval * TIME_UNIT; |
| 1862 | |
| 1863 | if (!interval || !usec) |
| 1864 | return 0; |
| 1865 | |
| 1866 | quot = (usec / interval) & |
| 1867 | (iwl_beacon_time_mask_high(priv, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1868 | hw_params(priv).beacon_time_tsf_bits) >> |
| 1869 | hw_params(priv).beacon_time_tsf_bits); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1870 | rem = (usec % interval) & iwl_beacon_time_mask_low(priv, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1871 | hw_params(priv).beacon_time_tsf_bits); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1872 | |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1873 | return (quot << hw_params(priv).beacon_time_tsf_bits) + rem; |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1874 | } |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1875 | |
| 1876 | /* base is usually what we get from ucode with each received frame, |
| 1877 | * the same as HW timer counter counting down |
| 1878 | */ |
| 1879 | __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base, |
| 1880 | u32 addon, u32 beacon_interval) |
| 1881 | { |
| 1882 | u32 base_low = base & iwl_beacon_time_mask_low(priv, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1883 | hw_params(priv).beacon_time_tsf_bits); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1884 | u32 addon_low = addon & iwl_beacon_time_mask_low(priv, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1885 | hw_params(priv).beacon_time_tsf_bits); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1886 | u32 interval = beacon_interval * TIME_UNIT; |
| 1887 | u32 res = (base & iwl_beacon_time_mask_high(priv, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1888 | hw_params(priv).beacon_time_tsf_bits)) + |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1889 | (addon & iwl_beacon_time_mask_high(priv, |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1890 | hw_params(priv).beacon_time_tsf_bits)); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1891 | |
| 1892 | if (base_low > addon_low) |
| 1893 | res += base_low - addon_low; |
| 1894 | else if (base_low < addon_low) { |
| 1895 | res += interval + base_low - addon_low; |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1896 | res += (1 << hw_params(priv).beacon_time_tsf_bits); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1897 | } else |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1898 | res += (1 << hw_params(priv).beacon_time_tsf_bits); |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1899 | |
| 1900 | return cpu_to_le32(res); |
| 1901 | } |
Wey-Yi Guy | a0ee74c | 2010-05-06 08:54:10 -0700 | [diff] [blame] | 1902 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1903 | #ifdef CONFIG_PM |
| 1904 | |
Emmanuel Grumbach | 48d1a21 | 2011-05-24 11:39:02 +0300 | [diff] [blame] | 1905 | int iwl_suspend(struct iwl_priv *priv) |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1906 | { |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1907 | /* |
| 1908 | * This function is called when system goes into suspend state |
| 1909 | * mac80211 will call iwl_mac_stop() from the mac80211 suspend function |
| 1910 | * first but since iwl_mac_stop() has no knowledge of who the caller is, |
| 1911 | * it will not call apm_ops.stop() to stop the DMA operation. |
| 1912 | * Calling apm_ops.stop here to make sure we stop the DMA. |
Johannes Berg | c8ac61c | 2011-07-15 13:23:45 -0700 | [diff] [blame] | 1913 | * |
| 1914 | * But of course ... if we have configured WoWLAN then we did other |
| 1915 | * things already :-) |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1916 | */ |
Johannes Berg | c8ac61c | 2011-07-15 13:23:45 -0700 | [diff] [blame] | 1917 | if (!priv->wowlan) |
| 1918 | iwl_apm_stop(priv); |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1919 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1920 | return 0; |
| 1921 | } |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1922 | |
Emmanuel Grumbach | 48d1a21 | 2011-05-24 11:39:02 +0300 | [diff] [blame] | 1923 | int iwl_resume(struct iwl_priv *priv) |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1924 | { |
Johannes Berg | 0ab84cf | 2010-06-18 01:38:56 -0700 | [diff] [blame] | 1925 | bool hw_rfkill = false; |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1926 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1927 | iwl_enable_interrupts(priv); |
| 1928 | |
Johannes Berg | 0ab84cf | 2010-06-18 01:38:56 -0700 | [diff] [blame] | 1929 | if (!(iwl_read32(priv, CSR_GP_CNTRL) & |
| 1930 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) |
| 1931 | hw_rfkill = true; |
| 1932 | |
| 1933 | if (hw_rfkill) |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1934 | set_bit(STATUS_RF_KILL_HW, &priv->shrd->status); |
Johannes Berg | 0ab84cf | 2010-06-18 01:38:56 -0700 | [diff] [blame] | 1935 | else |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1936 | clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status); |
Johannes Berg | 0ab84cf | 2010-06-18 01:38:56 -0700 | [diff] [blame] | 1937 | |
| 1938 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rfkill); |
| 1939 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1940 | return 0; |
| 1941 | } |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 1942 | |
| 1943 | #endif /* CONFIG_PM */ |