Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
| 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project, as well |
| 6 | * as portions of the ieee80211 subsystem header files. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of version 2 of the GNU General Public License as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution in the |
| 22 | * file called LICENSE. |
| 23 | * |
| 24 | * Contact Information: |
| 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | |
| 30 | #include <net/mac80211.h> |
| 31 | #include <linux/etherdevice.h> |
| 32 | #include <linux/sched.h> |
| 33 | #include <linux/lockdep.h> |
| 34 | |
| 35 | #include "iwl-dev.h" |
| 36 | #include "iwl-core.h" |
| 37 | #include "iwl-sta.h" |
| 38 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 39 | /* il->sta_lock must be held */ |
| 40 | static void il_sta_ucode_activate(struct il_priv *il, u8 sta_id) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 41 | { |
| 42 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 43 | if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 44 | IL_ERR( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 45 | "ACTIVATE a non DRIVER active station id %u addr %pM\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 46 | sta_id, il->stations[sta_id].sta.sta.addr); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 47 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 48 | if (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 49 | D_ASSOC( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 50 | "STA id %u addr %pM already present" |
| 51 | " in uCode (according to driver)\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 52 | sta_id, il->stations[sta_id].sta.sta.addr); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 53 | } else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 54 | il->stations[sta_id].used |= IL_STA_UCODE_ACTIVE; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 55 | D_ASSOC("Added STA id %u addr %pM to uCode\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 56 | sta_id, il->stations[sta_id].sta.sta.addr); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 57 | } |
| 58 | } |
| 59 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 60 | static int il_process_add_sta_resp(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 61 | struct il_addsta_cmd *addsta, |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame^] | 62 | struct il_rx_pkt *pkt, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 63 | bool sync) |
| 64 | { |
| 65 | u8 sta_id = addsta->sta.sta_id; |
| 66 | unsigned long flags; |
| 67 | int ret = -EIO; |
| 68 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 69 | if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 70 | IL_ERR("Bad return from REPLY_ADD_STA (0x%08X)\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 71 | pkt->hdr.flags); |
| 72 | return ret; |
| 73 | } |
| 74 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 75 | D_INFO("Processing response for adding station %u\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 76 | sta_id); |
| 77 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 78 | spin_lock_irqsave(&il->sta_lock, flags); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 79 | |
| 80 | switch (pkt->u.add_sta.status) { |
| 81 | case ADD_STA_SUCCESS_MSK: |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 82 | D_INFO("REPLY_ADD_STA PASSED\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 83 | il_sta_ucode_activate(il, sta_id); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 84 | ret = 0; |
| 85 | break; |
| 86 | case ADD_STA_NO_ROOM_IN_TABLE: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 87 | IL_ERR("Adding station %d failed, no room in table.\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 88 | sta_id); |
| 89 | break; |
| 90 | case ADD_STA_NO_BLOCK_ACK_RESOURCE: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 91 | IL_ERR( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 92 | "Adding station %d failed, no block ack resource.\n", |
| 93 | sta_id); |
| 94 | break; |
| 95 | case ADD_STA_MODIFY_NON_EXIST_STA: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 96 | IL_ERR("Attempting to modify non-existing station %d\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 97 | sta_id); |
| 98 | break; |
| 99 | default: |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 100 | D_ASSOC("Received REPLY_ADD_STA:(0x%08X)\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 101 | pkt->u.add_sta.status); |
| 102 | break; |
| 103 | } |
| 104 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 105 | D_INFO("%s station id %u addr %pM\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 106 | il->stations[sta_id].sta.mode == |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 107 | STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 108 | sta_id, il->stations[sta_id].sta.sta.addr); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 109 | |
| 110 | /* |
| 111 | * XXX: The MAC address in the command buffer is often changed from |
| 112 | * the original sent to the device. That is, the MAC address |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 113 | * written to the command buffer often is not the same MAC address |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 114 | * read from the command buffer when the command returns. This |
| 115 | * issue has not yet been resolved and this debugging is left to |
| 116 | * observe the problem. |
| 117 | */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 118 | D_INFO("%s station according to cmd buffer %pM\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 119 | il->stations[sta_id].sta.mode == |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 120 | STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", |
| 121 | addsta->sta.addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 122 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 123 | |
| 124 | return ret; |
| 125 | } |
| 126 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 127 | static void il_add_sta_callback(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 128 | struct il_device_cmd *cmd, |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame^] | 129 | struct il_rx_pkt *pkt) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 130 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 131 | struct il_addsta_cmd *addsta = |
| 132 | (struct il_addsta_cmd *)cmd->cmd.payload; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 133 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 134 | il_process_add_sta_resp(il, addsta, pkt, false); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 135 | |
| 136 | } |
| 137 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 138 | int il_send_add_sta(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 139 | struct il_addsta_cmd *sta, u8 flags) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 140 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame^] | 141 | struct il_rx_pkt *pkt = NULL; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 142 | int ret = 0; |
| 143 | u8 data[sizeof(*sta)]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 144 | struct il_host_cmd cmd = { |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 145 | .id = REPLY_ADD_STA, |
| 146 | .flags = flags, |
| 147 | .data = data, |
| 148 | }; |
| 149 | u8 sta_id __maybe_unused = sta->sta.sta_id; |
| 150 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 151 | D_INFO("Adding sta %u (%pM) %ssynchronously\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 152 | sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : ""); |
| 153 | |
| 154 | if (flags & CMD_ASYNC) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 155 | cmd.callback = il_add_sta_callback; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 156 | else { |
| 157 | cmd.flags |= CMD_WANT_SKB; |
| 158 | might_sleep(); |
| 159 | } |
| 160 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 161 | cmd.len = il->cfg->ops->utils->build_addsta_hcmd(sta, data); |
| 162 | ret = il_send_cmd(il, &cmd); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 163 | |
| 164 | if (ret || (flags & CMD_ASYNC)) |
| 165 | return ret; |
| 166 | |
| 167 | if (ret == 0) { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame^] | 168 | pkt = (struct il_rx_pkt *)cmd.reply_page; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 169 | ret = il_process_add_sta_resp(il, sta, pkt, true); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 170 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 171 | il_free_pages(il, cmd.reply_page); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 172 | |
| 173 | return ret; |
| 174 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 175 | EXPORT_SYMBOL(il_send_add_sta); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 176 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 177 | static void il_set_ht_add_station(struct il_priv *il, u8 index, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 178 | struct ieee80211_sta *sta, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 179 | struct il_rxon_context *ctx) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 180 | { |
| 181 | struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap; |
| 182 | __le32 sta_flags; |
| 183 | u8 mimo_ps_mode; |
| 184 | |
| 185 | if (!sta || !sta_ht_inf->ht_supported) |
| 186 | goto done; |
| 187 | |
| 188 | mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 189 | D_ASSOC("spatial multiplexing power save mode: %s\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 190 | (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ? |
| 191 | "static" : |
| 192 | (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ? |
| 193 | "dynamic" : "disabled"); |
| 194 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 195 | sta_flags = il->stations[index].sta.station_flags; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 196 | |
| 197 | sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); |
| 198 | |
| 199 | switch (mimo_ps_mode) { |
| 200 | case WLAN_HT_CAP_SM_PS_STATIC: |
| 201 | sta_flags |= STA_FLG_MIMO_DIS_MSK; |
| 202 | break; |
| 203 | case WLAN_HT_CAP_SM_PS_DYNAMIC: |
| 204 | sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
| 205 | break; |
| 206 | case WLAN_HT_CAP_SM_PS_DISABLED: |
| 207 | break; |
| 208 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 209 | IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 210 | break; |
| 211 | } |
| 212 | |
| 213 | sta_flags |= cpu_to_le32( |
| 214 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); |
| 215 | |
| 216 | sta_flags |= cpu_to_le32( |
| 217 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); |
| 218 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 219 | if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap)) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 220 | sta_flags |= STA_FLG_HT40_EN_MSK; |
| 221 | else |
| 222 | sta_flags &= ~STA_FLG_HT40_EN_MSK; |
| 223 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 224 | il->stations[index].sta.station_flags = sta_flags; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 225 | done: |
| 226 | return; |
| 227 | } |
| 228 | |
| 229 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 230 | * il_prep_station - Prepare station information for addition |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 231 | * |
| 232 | * should be called with sta_lock held |
| 233 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 234 | u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 235 | const u8 *addr, bool is_ap, struct ieee80211_sta *sta) |
| 236 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 237 | struct il_station_entry *station; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 238 | int i; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 239 | u8 sta_id = IL_INVALID_STATION; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 240 | u16 rate; |
| 241 | |
| 242 | if (is_ap) |
| 243 | sta_id = ctx->ap_sta_id; |
| 244 | else if (is_broadcast_ether_addr(addr)) |
| 245 | sta_id = ctx->bcast_sta_id; |
| 246 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 247 | for (i = IL_STA_ID; i < il->hw_params.max_stations; i++) { |
| 248 | if (!compare_ether_addr(il->stations[i].sta.sta.addr, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 249 | addr)) { |
| 250 | sta_id = i; |
| 251 | break; |
| 252 | } |
| 253 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 254 | if (!il->stations[i].used && |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 255 | sta_id == IL_INVALID_STATION) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 256 | sta_id = i; |
| 257 | } |
| 258 | |
| 259 | /* |
| 260 | * These two conditions have the same outcome, but keep them |
| 261 | * separate |
| 262 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 263 | if (unlikely(sta_id == IL_INVALID_STATION)) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 264 | return sta_id; |
| 265 | |
| 266 | /* |
| 267 | * uCode is not able to deal with multiple requests to add a |
| 268 | * station. Keep track if one is in progress so that we do not send |
| 269 | * another. |
| 270 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 271 | if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 272 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 273 | "STA %d already in process of being added.\n", |
| 274 | sta_id); |
| 275 | return sta_id; |
| 276 | } |
| 277 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 278 | if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) && |
| 279 | (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) && |
| 280 | !compare_ether_addr(il->stations[sta_id].sta.sta.addr, addr)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 281 | D_ASSOC( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 282 | "STA %d (%pM) already added, not adding again.\n", |
| 283 | sta_id, addr); |
| 284 | return sta_id; |
| 285 | } |
| 286 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 287 | station = &il->stations[sta_id]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 288 | station->used = IL_STA_DRIVER_ACTIVE; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 289 | D_ASSOC("Add STA to driver ID %d: %pM\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 290 | sta_id, addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 291 | il->num_stations++; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 292 | |
| 293 | /* Set up the REPLY_ADD_STA command to send to device */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 294 | memset(&station->sta, 0, sizeof(struct il_addsta_cmd)); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 295 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
| 296 | station->sta.mode = 0; |
| 297 | station->sta.sta.sta_id = sta_id; |
| 298 | station->sta.station_flags = ctx->station_flags; |
| 299 | station->ctxid = ctx->ctxid; |
| 300 | |
| 301 | if (sta) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 302 | struct il_station_priv_common *sta_priv; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 303 | |
| 304 | sta_priv = (void *)sta->drv_priv; |
| 305 | sta_priv->ctx = ctx; |
| 306 | } |
| 307 | |
| 308 | /* |
| 309 | * OK to call unconditionally, since local stations (IBSS BSSID |
| 310 | * STA and broadcast STA) pass in a NULL sta, and mac80211 |
| 311 | * doesn't allow HT IBSS. |
| 312 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 313 | il_set_ht_add_station(il, sta_id, sta, ctx); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 314 | |
| 315 | /* 3945 only */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 316 | rate = (il->band == IEEE80211_BAND_5GHZ) ? |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 317 | IL_RATE_6M_PLCP : IL_RATE_1M_PLCP; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 318 | /* Turn on both antennas for the station... */ |
| 319 | station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK); |
| 320 | |
| 321 | return sta_id; |
| 322 | |
| 323 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 324 | EXPORT_SYMBOL_GPL(il_prep_station); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 325 | |
| 326 | #define STA_WAIT_TIMEOUT (HZ/2) |
| 327 | |
| 328 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 329 | * il_add_station_common - |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 330 | */ |
| 331 | int |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 332 | il_add_station_common(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 333 | struct il_rxon_context *ctx, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 334 | const u8 *addr, bool is_ap, |
| 335 | struct ieee80211_sta *sta, u8 *sta_id_r) |
| 336 | { |
| 337 | unsigned long flags_spin; |
| 338 | int ret = 0; |
| 339 | u8 sta_id; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 340 | struct il_addsta_cmd sta_cmd; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 341 | |
| 342 | *sta_id_r = 0; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 343 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 344 | sta_id = il_prep_station(il, ctx, addr, is_ap, sta); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 345 | if (sta_id == IL_INVALID_STATION) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 346 | IL_ERR("Unable to prepare station %pM for addition\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 347 | addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 348 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 349 | return -EINVAL; |
| 350 | } |
| 351 | |
| 352 | /* |
| 353 | * uCode is not able to deal with multiple requests to add a |
| 354 | * station. Keep track if one is in progress so that we do not send |
| 355 | * another. |
| 356 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 357 | if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 358 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 359 | "STA %d already in process of being added.\n", |
| 360 | sta_id); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 361 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 362 | return -EEXIST; |
| 363 | } |
| 364 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 365 | if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) && |
| 366 | (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 367 | D_ASSOC( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 368 | "STA %d (%pM) already added, not adding again.\n", |
| 369 | sta_id, addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 370 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 371 | return -EEXIST; |
| 372 | } |
| 373 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 374 | il->stations[sta_id].used |= IL_STA_UCODE_INPROGRESS; |
| 375 | memcpy(&sta_cmd, &il->stations[sta_id].sta, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 376 | sizeof(struct il_addsta_cmd)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 377 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 378 | |
| 379 | /* Add station to device's station table */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 380 | ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 381 | if (ret) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 382 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 383 | IL_ERR("Adding station %pM failed.\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 384 | il->stations[sta_id].sta.sta.addr); |
| 385 | il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE; |
| 386 | il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS; |
| 387 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 388 | } |
| 389 | *sta_id_r = sta_id; |
| 390 | return ret; |
| 391 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 392 | EXPORT_SYMBOL(il_add_station_common); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 393 | |
| 394 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 395 | * il_sta_ucode_deactivate - deactivate ucode status for a station |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 396 | * |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 397 | * il->sta_lock must be held |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 398 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 399 | static void il_sta_ucode_deactivate(struct il_priv *il, u8 sta_id) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 400 | { |
| 401 | /* Ucode must be active and driver must be non active */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 402 | if ((il->stations[sta_id].used & |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 403 | (IL_STA_UCODE_ACTIVE | IL_STA_DRIVER_ACTIVE)) != |
| 404 | IL_STA_UCODE_ACTIVE) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 405 | IL_ERR("removed non active STA %u\n", sta_id); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 406 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 407 | il->stations[sta_id].used &= ~IL_STA_UCODE_ACTIVE; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 408 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 409 | memset(&il->stations[sta_id], 0, sizeof(struct il_station_entry)); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 410 | D_ASSOC("Removed STA %u\n", sta_id); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 411 | } |
| 412 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 413 | static int il_send_remove_station(struct il_priv *il, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 414 | const u8 *addr, int sta_id, |
| 415 | bool temporary) |
| 416 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame^] | 417 | struct il_rx_pkt *pkt; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 418 | int ret; |
| 419 | |
| 420 | unsigned long flags_spin; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 421 | struct il_rem_sta_cmd rm_sta_cmd; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 422 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 423 | struct il_host_cmd cmd = { |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 424 | .id = REPLY_REMOVE_STA, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 425 | .len = sizeof(struct il_rem_sta_cmd), |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 426 | .flags = CMD_SYNC, |
| 427 | .data = &rm_sta_cmd, |
| 428 | }; |
| 429 | |
| 430 | memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); |
| 431 | rm_sta_cmd.num_sta = 1; |
| 432 | memcpy(&rm_sta_cmd.addr, addr, ETH_ALEN); |
| 433 | |
| 434 | cmd.flags |= CMD_WANT_SKB; |
| 435 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 436 | ret = il_send_cmd(il, &cmd); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 437 | |
| 438 | if (ret) |
| 439 | return ret; |
| 440 | |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame^] | 441 | pkt = (struct il_rx_pkt *)cmd.reply_page; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 442 | if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 443 | IL_ERR("Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 444 | pkt->hdr.flags); |
| 445 | ret = -EIO; |
| 446 | } |
| 447 | |
| 448 | if (!ret) { |
| 449 | switch (pkt->u.rem_sta.status) { |
| 450 | case REM_STA_SUCCESS_MSK: |
| 451 | if (!temporary) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 452 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 453 | il_sta_ucode_deactivate(il, sta_id); |
| 454 | spin_unlock_irqrestore(&il->sta_lock, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 455 | flags_spin); |
| 456 | } |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 457 | D_ASSOC("REPLY_REMOVE_STA PASSED\n"); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 458 | break; |
| 459 | default: |
| 460 | ret = -EIO; |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 461 | IL_ERR("REPLY_REMOVE_STA failed\n"); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 462 | break; |
| 463 | } |
| 464 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 465 | il_free_pages(il, cmd.reply_page); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 466 | |
| 467 | return ret; |
| 468 | } |
| 469 | |
| 470 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 471 | * il_remove_station - Remove driver's knowledge of station. |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 472 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 473 | int il_remove_station(struct il_priv *il, const u8 sta_id, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 474 | const u8 *addr) |
| 475 | { |
| 476 | unsigned long flags; |
| 477 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 478 | if (!il_is_ready(il)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 479 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 480 | "Unable to remove station %pM, device not ready.\n", |
| 481 | addr); |
| 482 | /* |
| 483 | * It is typical for stations to be removed when we are |
| 484 | * going down. Return success since device will be down |
| 485 | * soon anyway |
| 486 | */ |
| 487 | return 0; |
| 488 | } |
| 489 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 490 | D_ASSOC("Removing STA from driver:%d %pM\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 491 | sta_id, addr); |
| 492 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 493 | if (WARN_ON(sta_id == IL_INVALID_STATION)) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 494 | return -EINVAL; |
| 495 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 496 | spin_lock_irqsave(&il->sta_lock, flags); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 497 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 498 | if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 499 | D_INFO("Removing %pM but non DRIVER active\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 500 | addr); |
| 501 | goto out_err; |
| 502 | } |
| 503 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 504 | if (!(il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 505 | D_INFO("Removing %pM but non UCODE active\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 506 | addr); |
| 507 | goto out_err; |
| 508 | } |
| 509 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 510 | if (il->stations[sta_id].used & IL_STA_LOCAL) { |
| 511 | kfree(il->stations[sta_id].lq); |
| 512 | il->stations[sta_id].lq = NULL; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 513 | } |
| 514 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 515 | il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 516 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 517 | il->num_stations--; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 518 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 519 | BUG_ON(il->num_stations < 0); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 520 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 521 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 522 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 523 | return il_send_remove_station(il, addr, sta_id, false); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 524 | out_err: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 525 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 526 | return -EINVAL; |
| 527 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 528 | EXPORT_SYMBOL_GPL(il_remove_station); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 529 | |
| 530 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 531 | * il_clear_ucode_stations - clear ucode station table bits |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 532 | * |
| 533 | * This function clears all the bits in the driver indicating |
| 534 | * which stations are active in the ucode. Call when something |
| 535 | * other than explicit station management would cause this in |
| 536 | * the ucode, e.g. unassociated RXON. |
| 537 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 538 | void il_clear_ucode_stations(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 539 | struct il_rxon_context *ctx) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 540 | { |
| 541 | int i; |
| 542 | unsigned long flags_spin; |
| 543 | bool cleared = false; |
| 544 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 545 | D_INFO("Clearing ucode stations in driver\n"); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 546 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 547 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 548 | for (i = 0; i < il->hw_params.max_stations; i++) { |
| 549 | if (ctx && ctx->ctxid != il->stations[i].ctxid) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 550 | continue; |
| 551 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 552 | if (il->stations[i].used & IL_STA_UCODE_ACTIVE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 553 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 554 | "Clearing ucode active for station %d\n", i); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 555 | il->stations[i].used &= ~IL_STA_UCODE_ACTIVE; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 556 | cleared = true; |
| 557 | } |
| 558 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 559 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 560 | |
| 561 | if (!cleared) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 562 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 563 | "No active stations found to be cleared\n"); |
| 564 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 565 | EXPORT_SYMBOL(il_clear_ucode_stations); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 566 | |
| 567 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 568 | * il_restore_stations() - Restore driver known stations to device |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 569 | * |
| 570 | * All stations considered active by driver, but not present in ucode, is |
| 571 | * restored. |
| 572 | * |
| 573 | * Function sleeps. |
| 574 | */ |
| 575 | void |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 576 | il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 577 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 578 | struct il_addsta_cmd sta_cmd; |
| 579 | struct il_link_quality_cmd lq; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 580 | unsigned long flags_spin; |
| 581 | int i; |
| 582 | bool found = false; |
| 583 | int ret; |
| 584 | bool send_lq; |
| 585 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 586 | if (!il_is_ready(il)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 587 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 588 | "Not ready yet, not restoring any stations.\n"); |
| 589 | return; |
| 590 | } |
| 591 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 592 | D_ASSOC("Restoring all known stations ... start.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 593 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 594 | for (i = 0; i < il->hw_params.max_stations; i++) { |
| 595 | if (ctx->ctxid != il->stations[i].ctxid) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 596 | continue; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 597 | if ((il->stations[i].used & IL_STA_DRIVER_ACTIVE) && |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 598 | !(il->stations[i].used & IL_STA_UCODE_ACTIVE)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 599 | D_ASSOC("Restoring sta %pM\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 600 | il->stations[i].sta.sta.addr); |
| 601 | il->stations[i].sta.mode = 0; |
| 602 | il->stations[i].used |= IL_STA_UCODE_INPROGRESS; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 603 | found = true; |
| 604 | } |
| 605 | } |
| 606 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 607 | for (i = 0; i < il->hw_params.max_stations; i++) { |
| 608 | if ((il->stations[i].used & IL_STA_UCODE_INPROGRESS)) { |
| 609 | memcpy(&sta_cmd, &il->stations[i].sta, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 610 | sizeof(struct il_addsta_cmd)); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 611 | send_lq = false; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 612 | if (il->stations[i].lq) { |
| 613 | memcpy(&lq, il->stations[i].lq, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 614 | sizeof(struct il_link_quality_cmd)); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 615 | send_lq = true; |
| 616 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 617 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
| 618 | ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 619 | if (ret) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 620 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 621 | IL_ERR("Adding station %pM failed.\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 622 | il->stations[i].sta.sta.addr); |
| 623 | il->stations[i].used &= |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 624 | ~IL_STA_DRIVER_ACTIVE; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 625 | il->stations[i].used &= |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 626 | ~IL_STA_UCODE_INPROGRESS; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 627 | spin_unlock_irqrestore(&il->sta_lock, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 628 | flags_spin); |
| 629 | } |
| 630 | /* |
| 631 | * Rate scaling has already been initialized, send |
| 632 | * current LQ command |
| 633 | */ |
| 634 | if (send_lq) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 635 | il_send_lq_cmd(il, ctx, &lq, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 636 | CMD_SYNC, true); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 637 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 638 | il->stations[i].used &= ~IL_STA_UCODE_INPROGRESS; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 639 | } |
| 640 | } |
| 641 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 642 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 643 | if (!found) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 644 | D_INFO("Restoring all known stations" |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 645 | " .... no stations to be restored.\n"); |
| 646 | else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 647 | D_INFO("Restoring all known stations" |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 648 | " .... complete.\n"); |
| 649 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 650 | EXPORT_SYMBOL(il_restore_stations); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 651 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 652 | int il_get_free_ucode_key_index(struct il_priv *il) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 653 | { |
| 654 | int i; |
| 655 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 656 | for (i = 0; i < il->sta_key_max_num; i++) |
| 657 | if (!test_and_set_bit(i, &il->ucode_key_table)) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 658 | return i; |
| 659 | |
| 660 | return WEP_INVALID_OFFSET; |
| 661 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 662 | EXPORT_SYMBOL(il_get_free_ucode_key_index); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 663 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 664 | void il_dealloc_bcast_stations(struct il_priv *il) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 665 | { |
| 666 | unsigned long flags; |
| 667 | int i; |
| 668 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 669 | spin_lock_irqsave(&il->sta_lock, flags); |
| 670 | for (i = 0; i < il->hw_params.max_stations; i++) { |
| 671 | if (!(il->stations[i].used & IL_STA_BCAST)) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 672 | continue; |
| 673 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 674 | il->stations[i].used &= ~IL_STA_UCODE_ACTIVE; |
| 675 | il->num_stations--; |
| 676 | BUG_ON(il->num_stations < 0); |
| 677 | kfree(il->stations[i].lq); |
| 678 | il->stations[i].lq = NULL; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 679 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 680 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 681 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 682 | EXPORT_SYMBOL_GPL(il_dealloc_bcast_stations); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 683 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 684 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 685 | static void il_dump_lq_cmd(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 686 | struct il_link_quality_cmd *lq) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 687 | { |
| 688 | int i; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 689 | D_RATE("lq station id 0x%x\n", lq->sta_id); |
| 690 | D_RATE("lq ant 0x%X 0x%X\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 691 | lq->general_params.single_stream_ant_msk, |
| 692 | lq->general_params.dual_stream_ant_msk); |
| 693 | |
| 694 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 695 | D_RATE("lq index %d 0x%X\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 696 | i, lq->rs_table[i].rate_n_flags); |
| 697 | } |
| 698 | #else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 699 | static inline void il_dump_lq_cmd(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 700 | struct il_link_quality_cmd *lq) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 701 | { |
| 702 | } |
| 703 | #endif |
| 704 | |
| 705 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 706 | * il_is_lq_table_valid() - Test one aspect of LQ cmd for validity |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 707 | * |
| 708 | * It sometimes happens when a HT rate has been in use and we |
| 709 | * loose connectivity with AP then mac80211 will first tell us that the |
| 710 | * current channel is not HT anymore before removing the station. In such a |
| 711 | * scenario the RXON flags will be updated to indicate we are not |
| 712 | * communicating HT anymore, but the LQ command may still contain HT rates. |
| 713 | * Test for this to prevent driver from sending LQ command between the time |
| 714 | * RXON flags are updated and when LQ command is updated. |
| 715 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 716 | static bool il_is_lq_table_valid(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 717 | struct il_rxon_context *ctx, |
| 718 | struct il_link_quality_cmd *lq) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 719 | { |
| 720 | int i; |
| 721 | |
| 722 | if (ctx->ht.enabled) |
| 723 | return true; |
| 724 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 725 | D_INFO("Channel %u is not an HT channel\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 726 | ctx->active.channel); |
| 727 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { |
| 728 | if (le32_to_cpu(lq->rs_table[i].rate_n_flags) & |
| 729 | RATE_MCS_HT_MSK) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 730 | D_INFO( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 731 | "index %d of LQ expects HT channel\n", |
| 732 | i); |
| 733 | return false; |
| 734 | } |
| 735 | } |
| 736 | return true; |
| 737 | } |
| 738 | |
| 739 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 740 | * il_send_lq_cmd() - Send link quality command |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 741 | * @init: This command is sent as part of station initialization right |
| 742 | * after station has been added. |
| 743 | * |
| 744 | * The link quality command is sent as the last step of station creation. |
| 745 | * This is the special case in which init is set and we call a callback in |
| 746 | * this case to clear the state indicating that station creation is in |
| 747 | * progress. |
| 748 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 749 | int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 750 | struct il_link_quality_cmd *lq, u8 flags, bool init) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 751 | { |
| 752 | int ret = 0; |
| 753 | unsigned long flags_spin; |
| 754 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 755 | struct il_host_cmd cmd = { |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 756 | .id = REPLY_TX_LINK_QUALITY_CMD, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 757 | .len = sizeof(struct il_link_quality_cmd), |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 758 | .flags = flags, |
| 759 | .data = lq, |
| 760 | }; |
| 761 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 762 | if (WARN_ON(lq->sta_id == IL_INVALID_STATION)) |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 763 | return -EINVAL; |
| 764 | |
| 765 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 766 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 767 | if (!(il->stations[lq->sta_id].used & IL_STA_DRIVER_ACTIVE)) { |
| 768 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 769 | return -EINVAL; |
| 770 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 771 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 772 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 773 | il_dump_lq_cmd(il, lq); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 774 | BUG_ON(init && (cmd.flags & CMD_ASYNC)); |
| 775 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 776 | if (il_is_lq_table_valid(il, ctx, lq)) |
| 777 | ret = il_send_cmd(il, &cmd); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 778 | else |
| 779 | ret = -EINVAL; |
| 780 | |
| 781 | if (cmd.flags & CMD_ASYNC) |
| 782 | return ret; |
| 783 | |
| 784 | if (init) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 785 | D_INFO("init LQ command complete," |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 786 | " clearing sta addition status for sta %d\n", |
| 787 | lq->sta_id); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 788 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 789 | il->stations[lq->sta_id].used &= ~IL_STA_UCODE_INPROGRESS; |
| 790 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 791 | } |
| 792 | return ret; |
| 793 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 794 | EXPORT_SYMBOL(il_send_lq_cmd); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 795 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 796 | int il_mac_sta_remove(struct ieee80211_hw *hw, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 797 | struct ieee80211_vif *vif, |
| 798 | struct ieee80211_sta *sta) |
| 799 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 800 | struct il_priv *il = hw->priv; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 801 | struct il_station_priv_common *sta_common = (void *)sta->drv_priv; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 802 | int ret; |
| 803 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 804 | D_INFO("received request to remove station %pM\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 805 | sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 806 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 807 | D_INFO("proceeding to remove station %pM\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 808 | sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 809 | ret = il_remove_station(il, sta_common->sta_id, sta->addr); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 810 | if (ret) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 811 | IL_ERR("Error removing station %pM\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 812 | sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 813 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 814 | return ret; |
| 815 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 816 | EXPORT_SYMBOL(il_mac_sta_remove); |