Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 1 | /* |
Gertjan van Wingerde | 9c9a0d1 | 2009-11-08 16:39:55 +0100 | [diff] [blame] | 2 | Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 3 | <http://rt2x00.serialmonkey.com> |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the |
| 17 | Free Software Foundation, Inc., |
| 18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | */ |
| 20 | |
| 21 | /* |
| 22 | Module: rt2x00lib |
| 23 | Abstract: rt2x00 generic configuration routines. |
| 24 | */ |
| 25 | |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/module.h> |
| 28 | |
| 29 | #include "rt2x00.h" |
| 30 | #include "rt2x00lib.h" |
| 31 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 32 | void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev, |
| 33 | struct rt2x00_intf *intf, |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 34 | enum nl80211_iftype type, |
Johannes Berg | 5f936f1 | 2009-01-21 12:47:05 +0100 | [diff] [blame] | 35 | const u8 *mac, const u8 *bssid) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 36 | { |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 37 | struct rt2x00intf_conf conf; |
| 38 | unsigned int flags = 0; |
Ivo van Doorn | 4abee4b | 2007-10-06 14:11:46 +0200 | [diff] [blame] | 39 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 40 | conf.type = type; |
Ivo van Doorn | feb2469 | 2007-10-06 14:14:29 +0200 | [diff] [blame] | 41 | |
| 42 | switch (type) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 43 | case NL80211_IFTYPE_ADHOC: |
Helmut Schaa | ab8966d | 2010-07-11 12:30:13 +0200 | [diff] [blame] | 44 | conf.sync = TSF_SYNC_ADHOC; |
| 45 | break; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 46 | case NL80211_IFTYPE_AP: |
Andrey Yurovsky | a07dbea | 2008-12-20 10:55:34 +0100 | [diff] [blame] | 47 | case NL80211_IFTYPE_MESH_POINT: |
Ivo van Doorn | ce292a6 | 2008-12-20 10:57:02 +0100 | [diff] [blame] | 48 | case NL80211_IFTYPE_WDS: |
Helmut Schaa | ab8966d | 2010-07-11 12:30:13 +0200 | [diff] [blame] | 49 | conf.sync = TSF_SYNC_AP_NONE; |
Ivo van Doorn | feb2469 | 2007-10-06 14:14:29 +0200 | [diff] [blame] | 50 | break; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 51 | case NL80211_IFTYPE_STATION: |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 52 | conf.sync = TSF_SYNC_INFRA; |
Ivo van Doorn | feb2469 | 2007-10-06 14:14:29 +0200 | [diff] [blame] | 53 | break; |
| 54 | default: |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 55 | conf.sync = TSF_SYNC_NONE; |
Ivo van Doorn | feb2469 | 2007-10-06 14:14:29 +0200 | [diff] [blame] | 56 | break; |
| 57 | } |
| 58 | |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 59 | /* |
| 60 | * Note that when NULL is passed as address we will send |
| 61 | * 00:00:00:00:00 to the device to clear the address. |
| 62 | * This will prevent the device being confused when it wants |
| 63 | * to ACK frames or consideres itself associated. |
| 64 | */ |
| 65 | memset(&conf.mac, 0, sizeof(conf.mac)); |
| 66 | if (mac) |
| 67 | memcpy(&conf.mac, mac, ETH_ALEN); |
| 68 | |
| 69 | memset(&conf.bssid, 0, sizeof(conf.bssid)); |
| 70 | if (bssid) |
| 71 | memcpy(&conf.bssid, bssid, ETH_ALEN); |
| 72 | |
| 73 | flags |= CONFIG_UPDATE_TYPE; |
| 74 | if (mac || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count)) |
| 75 | flags |= CONFIG_UPDATE_MAC; |
| 76 | if (bssid || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count)) |
| 77 | flags |= CONFIG_UPDATE_BSSID; |
| 78 | |
| 79 | rt2x00dev->ops->lib->config_intf(rt2x00dev, intf, &conf, flags); |
| 80 | } |
| 81 | |
Ivo van Doorn | 7281037 | 2008-03-09 22:46:18 +0100 | [diff] [blame] | 82 | void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev, |
| 83 | struct rt2x00_intf *intf, |
Helmut Schaa | 0204464 | 2010-09-08 20:56:32 +0200 | [diff] [blame^] | 84 | struct ieee80211_bss_conf *bss_conf, |
| 85 | u32 changed) |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 86 | { |
Ivo van Doorn | 7281037 | 2008-03-09 22:46:18 +0100 | [diff] [blame] | 87 | struct rt2x00lib_erp erp; |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 88 | |
Ivo van Doorn | 7281037 | 2008-03-09 22:46:18 +0100 | [diff] [blame] | 89 | memset(&erp, 0, sizeof(erp)); |
| 90 | |
| 91 | erp.short_preamble = bss_conf->use_short_preamble; |
Ivo van Doorn | e360c4c | 2008-07-09 15:12:06 +0200 | [diff] [blame] | 92 | erp.cts_protection = bss_conf->use_cts_prot; |
| 93 | |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 94 | erp.slot_time = bss_conf->use_short_slot ? SHORT_SLOT_TIME : SLOT_TIME; |
| 95 | erp.sifs = SIFS; |
| 96 | erp.pifs = bss_conf->use_short_slot ? SHORT_PIFS : PIFS; |
| 97 | erp.difs = bss_conf->use_short_slot ? SHORT_DIFS : DIFS; |
| 98 | erp.eifs = bss_conf->use_short_slot ? SHORT_EIFS : EIFS; |
Ivo van Doorn | 6bb40dd | 2008-02-03 15:49:59 +0100 | [diff] [blame] | 99 | |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 100 | erp.basic_rates = bss_conf->basic_rates; |
Ivo van Doorn | 8a566af | 2009-05-21 19:16:46 +0200 | [diff] [blame] | 101 | erp.beacon_int = bss_conf->beacon_int; |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 102 | |
Ivo van Doorn | 6b347bf | 2009-05-23 21:09:28 +0200 | [diff] [blame] | 103 | /* Update global beacon interval time, this is needed for PS support */ |
| 104 | rt2x00dev->beacon_int = bss_conf->beacon_int; |
| 105 | |
Helmut Schaa | 0204464 | 2010-09-08 20:56:32 +0200 | [diff] [blame^] | 106 | rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp, changed); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Ivo van Doorn | 0b927a0 | 2008-12-02 18:20:22 +0100 | [diff] [blame] | 109 | static inline |
| 110 | enum antenna rt2x00lib_config_antenna_check(enum antenna current_ant, |
| 111 | enum antenna default_ant) |
| 112 | { |
| 113 | if (current_ant != ANTENNA_SW_DIVERSITY) |
| 114 | return current_ant; |
| 115 | return (default_ant != ANTENNA_SW_DIVERSITY) ? default_ant : ANTENNA_B; |
| 116 | } |
| 117 | |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 118 | void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev, |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 119 | struct antenna_setup config) |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 120 | { |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 121 | struct link_ant *ant = &rt2x00dev->link.ant; |
Ivo van Doorn | 0b927a0 | 2008-12-02 18:20:22 +0100 | [diff] [blame] | 122 | struct antenna_setup *def = &rt2x00dev->default_ant; |
| 123 | struct antenna_setup *active = &rt2x00dev->link.ant.active; |
| 124 | |
Ivo van Doorn | 6d64360 | 2008-11-02 00:38:10 +0100 | [diff] [blame] | 125 | /* |
| 126 | * Failsafe: Make sure we are not sending the |
| 127 | * ANTENNA_SW_DIVERSITY state to the driver. |
Luis Correia | 4951348 | 2009-07-17 21:39:19 +0200 | [diff] [blame] | 128 | * If that happens, fallback to hardware defaults, |
Ivo van Doorn | 6d64360 | 2008-11-02 00:38:10 +0100 | [diff] [blame] | 129 | * or our own default. |
| 130 | */ |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 131 | if (!(ant->flags & ANTENNA_RX_DIVERSITY)) |
| 132 | config.rx = rt2x00lib_config_antenna_check(config.rx, def->rx); |
Lars Ericsson | 85f4d64 | 2010-09-08 20:55:36 +0200 | [diff] [blame] | 133 | else if(config.rx == ANTENNA_SW_DIVERSITY) |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 134 | config.rx = active->rx; |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 135 | |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 136 | if (!(ant->flags & ANTENNA_TX_DIVERSITY)) |
| 137 | config.tx = rt2x00lib_config_antenna_check(config.tx, def->tx); |
Lars Ericsson | 85f4d64 | 2010-09-08 20:55:36 +0200 | [diff] [blame] | 138 | else if (config.tx == ANTENNA_SW_DIVERSITY) |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 139 | config.tx = active->tx; |
| 140 | |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 141 | /* |
Ivo van Doorn | e25c4bb | 2007-10-27 13:39:28 +0200 | [diff] [blame] | 142 | * Antenna setup changes require the RX to be disabled, |
| 143 | * else the changes will be ignored by the device. |
| 144 | */ |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 145 | if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
Ivo van Doorn | 61667d8 | 2008-02-25 23:15:05 +0100 | [diff] [blame] | 146 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK); |
Ivo van Doorn | e25c4bb | 2007-10-27 13:39:28 +0200 | [diff] [blame] | 147 | |
| 148 | /* |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 149 | * Write new antenna setup to device and reset the link tuner. |
| 150 | * The latter is required since we need to recalibrate the |
| 151 | * noise-sensitivity ratio for the new setup. |
| 152 | */ |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 153 | rt2x00dev->ops->lib->config_ant(rt2x00dev, &config); |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 154 | |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 155 | rt2x00link_reset_tuner(rt2x00dev, true); |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 156 | |
Ivo van Doorn | bdfa500 | 2009-08-08 23:53:04 +0200 | [diff] [blame] | 157 | memcpy(active, &config, sizeof(config)); |
Ivo van Doorn | e25c4bb | 2007-10-27 13:39:28 +0200 | [diff] [blame] | 158 | |
Ivo van Doorn | 0262ab0 | 2008-08-29 21:04:26 +0200 | [diff] [blame] | 159 | if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
Ivo van Doorn | 61667d8 | 2008-02-25 23:15:05 +0100 | [diff] [blame] | 160 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK); |
Ivo van Doorn | 69f81a2 | 2007-10-13 16:26:36 +0200 | [diff] [blame] | 161 | } |
| 162 | |
Ivo van Doorn | 066cb63 | 2007-09-25 20:55:39 +0200 | [diff] [blame] | 163 | void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 164 | struct ieee80211_conf *conf, |
| 165 | unsigned int ieee80211_flags) |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 166 | { |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 167 | struct rt2x00lib_conf libconf; |
Gertjan van Wingerde | 06443e4 | 2010-06-03 10:52:08 +0200 | [diff] [blame] | 168 | u16 hw_value; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 169 | |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 170 | memset(&libconf, 0, sizeof(libconf)); |
| 171 | |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 172 | libconf.conf = conf; |
Ivo van Doorn | f5507ce | 2008-02-03 15:51:13 +0100 | [diff] [blame] | 173 | |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 174 | if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) { |
Gertjan van Wingerde | 06443e4 | 2010-06-03 10:52:08 +0200 | [diff] [blame] | 175 | if (conf_is_ht40(conf)) { |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 176 | __set_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags); |
Gertjan van Wingerde | 06443e4 | 2010-06-03 10:52:08 +0200 | [diff] [blame] | 177 | hw_value = rt2x00ht_center_channel(rt2x00dev, conf); |
| 178 | } else { |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 179 | __clear_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags); |
Gertjan van Wingerde | 06443e4 | 2010-06-03 10:52:08 +0200 | [diff] [blame] | 180 | hw_value = conf->channel->hw_value; |
| 181 | } |
Ivo van Doorn | 35f00cf | 2009-04-26 16:09:32 +0200 | [diff] [blame] | 182 | |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 183 | memcpy(&libconf.rf, |
Gertjan van Wingerde | 06443e4 | 2010-06-03 10:52:08 +0200 | [diff] [blame] | 184 | &rt2x00dev->spec.channels[hw_value], |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 185 | sizeof(libconf.rf)); |
Ivo van Doorn | 8c5e7a5 | 2008-08-04 16:38:47 +0200 | [diff] [blame] | 186 | |
| 187 | memcpy(&libconf.channel, |
Gertjan van Wingerde | 06443e4 | 2010-06-03 10:52:08 +0200 | [diff] [blame] | 188 | &rt2x00dev->spec.channels_info[hw_value], |
Ivo van Doorn | 8c5e7a5 | 2008-08-04 16:38:47 +0200 | [diff] [blame] | 189 | sizeof(libconf.channel)); |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 190 | } |
| 191 | |
Ivo van Doorn | 5c58ee5 | 2007-10-06 13:34:52 +0200 | [diff] [blame] | 192 | /* |
| 193 | * Start configuration. |
| 194 | */ |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 195 | rt2x00dev->ops->lib->config(rt2x00dev, &libconf, ieee80211_flags); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 196 | |
| 197 | /* |
| 198 | * Some configuration changes affect the link quality |
| 199 | * which means we need to reset the link tuner. |
| 200 | */ |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 201 | if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) |
Ivo van Doorn | 84e3196 | 2008-12-20 10:53:29 +0100 | [diff] [blame] | 202 | rt2x00link_reset_tuner(rt2x00dev, false); |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 203 | |
Ivo van Doorn | e4ea1c4 | 2008-10-29 17:17:57 +0100 | [diff] [blame] | 204 | rt2x00dev->curr_band = conf->channel->band; |
Ivo van Doorn | e5ef5ba | 2010-08-06 20:49:27 +0200 | [diff] [blame] | 205 | rt2x00dev->curr_freq = conf->channel->center_freq; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 206 | rt2x00dev->tx_power = conf->power_level; |
Ivo van Doorn | 42c8285 | 2008-12-02 18:20:04 +0100 | [diff] [blame] | 207 | rt2x00dev->short_retry = conf->short_frame_max_tx_count; |
| 208 | rt2x00dev->long_retry = conf->long_frame_max_tx_count; |
Ivo van Doorn | 95ea362 | 2007-09-25 17:57:13 -0700 | [diff] [blame] | 209 | } |