Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Marvell Wireless LAN device driver: 802.11n |
| 3 | * |
| 4 | * Copyright (C) 2011, Marvell International Ltd. |
| 5 | * |
| 6 | * This software file (the "File") is distributed by Marvell International |
| 7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 |
| 8 | * (the "License"). You may use, redistribute and/or modify this File in |
| 9 | * accordance with the terms and conditions of the License, a copy of which |
| 10 | * is available by writing to the Free Software Foundation, Inc., |
| 11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
| 12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
| 13 | * |
| 14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
| 16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
| 17 | * this warranty disclaimer. |
| 18 | */ |
| 19 | |
| 20 | #include "decl.h" |
| 21 | #include "ioctl.h" |
| 22 | #include "util.h" |
| 23 | #include "fw.h" |
| 24 | #include "main.h" |
| 25 | #include "wmm.h" |
| 26 | #include "11n.h" |
| 27 | |
| 28 | /* |
| 29 | * Fills HT capability information field, AMPDU Parameters field, HT extended |
| 30 | * capability field, and supported MCS set fields. |
| 31 | * |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 32 | * HT capability information field, AMPDU Parameters field, supported MCS set |
| 33 | * fields are retrieved from cfg80211 stack |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 34 | * |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 35 | * RD responder bit to set to clear in the extended capability header. |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 36 | */ |
| 37 | void |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 38 | mwifiex_fill_cap_info(struct mwifiex_private *priv, u8 radio_type, |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 39 | struct mwifiex_ie_types_htcap *ht_cap) |
| 40 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 41 | uint16_t ht_ext_cap = le16_to_cpu(ht_cap->ht_cap.extended_ht_cap_info); |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 42 | struct ieee80211_supported_band *sband = |
| 43 | priv->wdev->wiphy->bands[radio_type]; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 44 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 45 | ht_cap->ht_cap.ampdu_params_info = |
| 46 | (sband->ht_cap.ampdu_factor & |
| 47 | IEEE80211_HT_AMPDU_PARM_FACTOR)| |
| 48 | ((sband->ht_cap.ampdu_density << |
| 49 | IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT) & |
| 50 | IEEE80211_HT_AMPDU_PARM_DENSITY); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 51 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 52 | memcpy((u8 *) &ht_cap->ht_cap.mcs, &sband->ht_cap.mcs, |
| 53 | sizeof(sband->ht_cap.mcs)); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 54 | |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 55 | if (priv->bss_mode == NL80211_IFTYPE_STATION || |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 56 | (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 57 | /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ |
| 58 | SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask); |
| 59 | |
| 60 | /* Clear RD responder bit */ |
Amitkumar Karwar | a373165 | 2011-04-15 20:50:41 -0700 | [diff] [blame] | 61 | ht_ext_cap &= ~IEEE80211_HT_EXT_CAP_RD_RESPONDER; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 62 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 63 | ht_cap->ht_cap.cap_info = cpu_to_le16(sband->ht_cap.cap); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 64 | ht_cap->ht_cap.extended_ht_cap_info = cpu_to_le16(ht_ext_cap); |
| 65 | } |
| 66 | |
| 67 | /* |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 68 | * This function returns the pointer to an entry in BA Stream |
| 69 | * table which matches the requested BA status. |
| 70 | */ |
| 71 | static struct mwifiex_tx_ba_stream_tbl * |
| 72 | mwifiex_11n_get_tx_ba_stream_status(struct mwifiex_private *priv, |
| 73 | enum mwifiex_ba_status ba_status) |
| 74 | { |
| 75 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; |
| 76 | unsigned long flags; |
| 77 | |
| 78 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); |
| 79 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { |
| 80 | if (tx_ba_tsr_tbl->ba_status == ba_status) { |
| 81 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, |
| 82 | flags); |
| 83 | return tx_ba_tsr_tbl; |
| 84 | } |
| 85 | } |
| 86 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); |
| 87 | return NULL; |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * This function handles the command response of delete a block |
| 92 | * ack request. |
| 93 | * |
| 94 | * The function checks the response success status and takes action |
| 95 | * accordingly (send an add BA request in case of success, or recreate |
| 96 | * the deleted stream in case of failure, if the add BA was also |
| 97 | * initiated by us). |
| 98 | */ |
| 99 | int mwifiex_ret_11n_delba(struct mwifiex_private *priv, |
| 100 | struct host_cmd_ds_command *resp) |
| 101 | { |
| 102 | int tid; |
| 103 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl; |
| 104 | struct host_cmd_ds_11n_delba *del_ba = |
| 105 | (struct host_cmd_ds_11n_delba *) &resp->params.del_ba; |
| 106 | uint16_t del_ba_param_set = le16_to_cpu(del_ba->del_ba_param_set); |
| 107 | |
| 108 | tid = del_ba_param_set >> DELBA_TID_POS; |
| 109 | if (del_ba->del_result == BA_RESULT_SUCCESS) { |
| 110 | mwifiex_11n_delete_ba_stream_tbl(priv, tid, |
| 111 | del_ba->peer_mac_addr, TYPE_DELBA_SENT, |
| 112 | INITIATOR_BIT(del_ba_param_set)); |
| 113 | |
| 114 | tx_ba_tbl = mwifiex_11n_get_tx_ba_stream_status(priv, |
| 115 | BA_STREAM_SETUP_INPROGRESS); |
| 116 | if (tx_ba_tbl) |
| 117 | mwifiex_send_addba(priv, tx_ba_tbl->tid, |
| 118 | tx_ba_tbl->ra); |
| 119 | } else { /* |
| 120 | * In case of failure, recreate the deleted stream in case |
| 121 | * we initiated the ADDBA |
| 122 | */ |
| 123 | if (INITIATOR_BIT(del_ba_param_set)) { |
| 124 | mwifiex_11n_create_tx_ba_stream_tbl(priv, |
| 125 | del_ba->peer_mac_addr, tid, |
| 126 | BA_STREAM_SETUP_INPROGRESS); |
| 127 | |
| 128 | tx_ba_tbl = mwifiex_11n_get_tx_ba_stream_status(priv, |
| 129 | BA_STREAM_SETUP_INPROGRESS); |
| 130 | if (tx_ba_tbl) |
| 131 | mwifiex_11n_delete_ba_stream_tbl(priv, |
| 132 | tx_ba_tbl->tid, tx_ba_tbl->ra, |
| 133 | TYPE_DELBA_SENT, true); |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | /* |
| 141 | * This function handles the command response of add a block |
| 142 | * ack request. |
| 143 | * |
| 144 | * Handling includes changing the header fields to CPU formats, checking |
| 145 | * the response success status and taking actions accordingly (delete the |
| 146 | * BA stream table in case of failure). |
| 147 | */ |
| 148 | int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv, |
| 149 | struct host_cmd_ds_command *resp) |
| 150 | { |
| 151 | int tid; |
| 152 | struct host_cmd_ds_11n_addba_rsp *add_ba_rsp = |
| 153 | (struct host_cmd_ds_11n_addba_rsp *) &resp->params.add_ba_rsp; |
| 154 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl; |
| 155 | |
| 156 | add_ba_rsp->ssn = cpu_to_le16((le16_to_cpu(add_ba_rsp->ssn)) |
| 157 | & SSN_MASK); |
| 158 | |
| 159 | tid = (le16_to_cpu(add_ba_rsp->block_ack_param_set) |
| 160 | & IEEE80211_ADDBA_PARAM_TID_MASK) |
| 161 | >> BLOCKACKPARAM_TID_POS; |
| 162 | if (le16_to_cpu(add_ba_rsp->status_code) == BA_RESULT_SUCCESS) { |
| 163 | tx_ba_tbl = mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, |
| 164 | add_ba_rsp->peer_mac_addr); |
| 165 | if (tx_ba_tbl) { |
| 166 | dev_dbg(priv->adapter->dev, "info: BA stream complete\n"); |
| 167 | tx_ba_tbl->ba_status = BA_STREAM_SETUP_COMPLETE; |
| 168 | } else { |
| 169 | dev_err(priv->adapter->dev, "BA stream not created\n"); |
| 170 | } |
| 171 | } else { |
| 172 | mwifiex_11n_delete_ba_stream_tbl(priv, tid, |
| 173 | add_ba_rsp->peer_mac_addr, |
| 174 | TYPE_DELBA_SENT, true); |
| 175 | if (add_ba_rsp->add_rsp_result != BA_RESULT_TIMEOUT) |
| 176 | priv->aggr_prio_tbl[tid].ampdu_ap = |
| 177 | BA_STREAM_NOT_ALLOWED; |
| 178 | } |
| 179 | |
| 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | /* |
| 184 | * This function handles the command response of 11n configuration request. |
| 185 | * |
| 186 | * Handling includes changing the header fields into CPU format. |
| 187 | */ |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 188 | int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp, |
| 189 | struct mwifiex_ds_11n_tx_cfg *tx_cfg) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 190 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 191 | struct host_cmd_ds_11n_cfg *htcfg = &resp->params.htcfg; |
| 192 | |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 193 | if (tx_cfg) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 194 | tx_cfg->tx_htcap = le16_to_cpu(htcfg->ht_tx_cap); |
| 195 | tx_cfg->tx_htinfo = le16_to_cpu(htcfg->ht_tx_info); |
| 196 | } |
| 197 | return 0; |
| 198 | } |
| 199 | |
| 200 | /* |
| 201 | * This function prepares command of reconfigure Tx buffer. |
| 202 | * |
| 203 | * Preparation includes - |
| 204 | * - Setting command ID, action and proper size |
| 205 | * - Setting Tx buffer size (for SET only) |
| 206 | * - Ensuring correct endian-ness |
| 207 | */ |
| 208 | int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv, |
| 209 | struct host_cmd_ds_command *cmd, int cmd_action, |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 210 | u16 *buf_size) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 211 | { |
| 212 | struct host_cmd_ds_txbuf_cfg *tx_buf = &cmd->params.tx_buf; |
| 213 | u16 action = (u16) cmd_action; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 214 | |
| 215 | cmd->command = cpu_to_le16(HostCmd_CMD_RECONFIGURE_TX_BUFF); |
| 216 | cmd->size = |
| 217 | cpu_to_le16(sizeof(struct host_cmd_ds_txbuf_cfg) + S_DS_GEN); |
| 218 | tx_buf->action = cpu_to_le16(action); |
| 219 | switch (action) { |
| 220 | case HostCmd_ACT_GEN_SET: |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 221 | dev_dbg(priv->adapter->dev, "cmd: set tx_buf=%d\n", *buf_size); |
| 222 | tx_buf->buff_size = cpu_to_le16(*buf_size); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 223 | break; |
| 224 | case HostCmd_ACT_GEN_GET: |
| 225 | default: |
| 226 | tx_buf->buff_size = 0; |
| 227 | break; |
| 228 | } |
| 229 | return 0; |
| 230 | } |
| 231 | |
| 232 | /* |
| 233 | * This function prepares command of AMSDU aggregation control. |
| 234 | * |
| 235 | * Preparation includes - |
| 236 | * - Setting command ID, action and proper size |
| 237 | * - Setting AMSDU control parameters (for SET only) |
| 238 | * - Ensuring correct endian-ness |
| 239 | */ |
Amitkumar Karwar | 572e8f3 | 2011-04-13 17:27:08 -0700 | [diff] [blame] | 240 | int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd, |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 241 | int cmd_action, |
| 242 | struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 243 | { |
| 244 | struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl = |
| 245 | &cmd->params.amsdu_aggr_ctrl; |
| 246 | u16 action = (u16) cmd_action; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 247 | |
| 248 | cmd->command = cpu_to_le16(HostCmd_CMD_AMSDU_AGGR_CTRL); |
| 249 | cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_amsdu_aggr_ctrl) |
| 250 | + S_DS_GEN); |
| 251 | amsdu_ctrl->action = cpu_to_le16(action); |
| 252 | switch (action) { |
| 253 | case HostCmd_ACT_GEN_SET: |
| 254 | amsdu_ctrl->enable = cpu_to_le16(aa_ctrl->enable); |
| 255 | amsdu_ctrl->curr_buf_size = 0; |
| 256 | break; |
| 257 | case HostCmd_ACT_GEN_GET: |
| 258 | default: |
| 259 | amsdu_ctrl->curr_buf_size = 0; |
| 260 | break; |
| 261 | } |
| 262 | return 0; |
| 263 | } |
| 264 | |
| 265 | /* |
| 266 | * This function handles the command response of AMSDU aggregation |
| 267 | * control request. |
| 268 | * |
| 269 | * Handling includes changing the header fields into CPU format. |
| 270 | */ |
Amitkumar Karwar | 572e8f3 | 2011-04-13 17:27:08 -0700 | [diff] [blame] | 271 | int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp, |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 272 | struct mwifiex_ds_11n_amsdu_aggr_ctrl |
| 273 | *amsdu_aggr_ctrl) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 274 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 275 | struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl = |
| 276 | &resp->params.amsdu_aggr_ctrl; |
| 277 | |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 278 | if (amsdu_aggr_ctrl) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 279 | amsdu_aggr_ctrl->enable = le16_to_cpu(amsdu_ctrl->enable); |
| 280 | amsdu_aggr_ctrl->curr_buf_size = |
| 281 | le16_to_cpu(amsdu_ctrl->curr_buf_size); |
| 282 | } |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * This function prepares 11n configuration command. |
| 288 | * |
| 289 | * Preparation includes - |
| 290 | * - Setting command ID, action and proper size |
| 291 | * - Setting HT Tx capability and HT Tx information fields |
| 292 | * - Ensuring correct endian-ness |
| 293 | */ |
Amitkumar Karwar | a5ffddb | 2011-06-20 15:21:48 -0700 | [diff] [blame] | 294 | int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action, |
| 295 | struct mwifiex_ds_11n_tx_cfg *txcfg) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 296 | { |
| 297 | struct host_cmd_ds_11n_cfg *htcfg = &cmd->params.htcfg; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 298 | |
| 299 | cmd->command = cpu_to_le16(HostCmd_CMD_11N_CFG); |
| 300 | cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_11n_cfg) + S_DS_GEN); |
| 301 | htcfg->action = cpu_to_le16(cmd_action); |
| 302 | htcfg->ht_tx_cap = cpu_to_le16(txcfg->tx_htcap); |
| 303 | htcfg->ht_tx_info = cpu_to_le16(txcfg->tx_htinfo); |
| 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | /* |
| 308 | * This function appends an 11n TLV to a buffer. |
| 309 | * |
| 310 | * Buffer allocation is responsibility of the calling |
| 311 | * function. No size validation is made here. |
| 312 | * |
| 313 | * The function fills up the following sections, if applicable - |
| 314 | * - HT capability IE |
| 315 | * - HT information IE (with channel list) |
| 316 | * - 20/40 BSS Coexistence IE |
| 317 | * - HT Extended Capabilities IE |
| 318 | */ |
| 319 | int |
| 320 | mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv, |
| 321 | struct mwifiex_bssdescriptor *bss_desc, |
| 322 | u8 **buffer) |
| 323 | { |
| 324 | struct mwifiex_ie_types_htcap *ht_cap; |
| 325 | struct mwifiex_ie_types_htinfo *ht_info; |
| 326 | struct mwifiex_ie_types_chan_list_param_set *chan_list; |
| 327 | struct mwifiex_ie_types_2040bssco *bss_co_2040; |
| 328 | struct mwifiex_ie_types_extcap *ext_cap; |
| 329 | int ret_len = 0; |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 330 | struct ieee80211_supported_band *sband; |
| 331 | u8 radio_type; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 332 | |
| 333 | if (!buffer || !*buffer) |
| 334 | return ret_len; |
| 335 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 336 | radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band); |
| 337 | sband = priv->wdev->wiphy->bands[radio_type]; |
| 338 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 339 | if (bss_desc->bcn_ht_cap) { |
| 340 | ht_cap = (struct mwifiex_ie_types_htcap *) *buffer; |
| 341 | memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap)); |
| 342 | ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY); |
| 343 | ht_cap->header.len = |
| 344 | cpu_to_le16(sizeof(struct ieee80211_ht_cap)); |
| 345 | memcpy((u8 *) ht_cap + sizeof(struct mwifiex_ie_types_header), |
| 346 | (u8 *) bss_desc->bcn_ht_cap + |
| 347 | sizeof(struct ieee_types_header), |
| 348 | le16_to_cpu(ht_cap->header.len)); |
| 349 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 350 | mwifiex_fill_cap_info(priv, radio_type, ht_cap); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 351 | |
| 352 | *buffer += sizeof(struct mwifiex_ie_types_htcap); |
| 353 | ret_len += sizeof(struct mwifiex_ie_types_htcap); |
| 354 | } |
| 355 | |
| 356 | if (bss_desc->bcn_ht_info) { |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 357 | if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 358 | ht_info = (struct mwifiex_ie_types_htinfo *) *buffer; |
| 359 | memset(ht_info, 0, |
| 360 | sizeof(struct mwifiex_ie_types_htinfo)); |
| 361 | ht_info->header.type = |
| 362 | cpu_to_le16(WLAN_EID_HT_INFORMATION); |
| 363 | ht_info->header.len = |
| 364 | cpu_to_le16(sizeof(struct ieee80211_ht_info)); |
| 365 | |
| 366 | memcpy((u8 *) ht_info + |
| 367 | sizeof(struct mwifiex_ie_types_header), |
| 368 | (u8 *) bss_desc->bcn_ht_info + |
| 369 | sizeof(struct ieee_types_header), |
| 370 | le16_to_cpu(ht_info->header.len)); |
| 371 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 372 | if (!(sband->ht_cap.cap & |
| 373 | IEEE80211_HT_CAP_SUP_WIDTH_20_40)) |
Marc Yang | 6d2bd91 | 2011-03-25 19:47:02 -0700 | [diff] [blame] | 374 | ht_info->ht_info.ht_param &= |
| 375 | ~(IEEE80211_HT_PARAM_CHAN_WIDTH_ANY | |
| 376 | IEEE80211_HT_PARAM_CHA_SEC_OFFSET); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 377 | |
| 378 | *buffer += sizeof(struct mwifiex_ie_types_htinfo); |
| 379 | ret_len += sizeof(struct mwifiex_ie_types_htinfo); |
| 380 | } |
| 381 | |
| 382 | chan_list = |
| 383 | (struct mwifiex_ie_types_chan_list_param_set *) *buffer; |
| 384 | memset(chan_list, 0, |
| 385 | sizeof(struct mwifiex_ie_types_chan_list_param_set)); |
| 386 | chan_list->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); |
| 387 | chan_list->header.len = cpu_to_le16( |
| 388 | sizeof(struct mwifiex_ie_types_chan_list_param_set) - |
| 389 | sizeof(struct mwifiex_ie_types_header)); |
| 390 | chan_list->chan_scan_param[0].chan_number = |
| 391 | bss_desc->bcn_ht_info->control_chan; |
| 392 | chan_list->chan_scan_param[0].radio_type = |
| 393 | mwifiex_band_to_radio_type((u8) bss_desc->bss_band); |
| 394 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 395 | if ((sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) |
Marc Yang | 6d2bd91 | 2011-03-25 19:47:02 -0700 | [diff] [blame] | 396 | && (bss_desc->bcn_ht_info->ht_param & |
| 397 | IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 398 | SET_SECONDARYCHAN(chan_list->chan_scan_param[0]. |
| 399 | radio_type, |
Marc Yang | 6d2bd91 | 2011-03-25 19:47:02 -0700 | [diff] [blame] | 400 | (bss_desc->bcn_ht_info->ht_param & |
| 401 | IEEE80211_HT_PARAM_CHA_SEC_OFFSET)); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 402 | |
| 403 | *buffer += sizeof(struct mwifiex_ie_types_chan_list_param_set); |
| 404 | ret_len += sizeof(struct mwifiex_ie_types_chan_list_param_set); |
| 405 | } |
| 406 | |
| 407 | if (bss_desc->bcn_bss_co_2040) { |
| 408 | bss_co_2040 = (struct mwifiex_ie_types_2040bssco *) *buffer; |
| 409 | memset(bss_co_2040, 0, |
| 410 | sizeof(struct mwifiex_ie_types_2040bssco)); |
| 411 | bss_co_2040->header.type = cpu_to_le16(WLAN_EID_BSS_COEX_2040); |
| 412 | bss_co_2040->header.len = |
| 413 | cpu_to_le16(sizeof(bss_co_2040->bss_co_2040)); |
| 414 | |
| 415 | memcpy((u8 *) bss_co_2040 + |
| 416 | sizeof(struct mwifiex_ie_types_header), |
| 417 | (u8 *) bss_desc->bcn_bss_co_2040 + |
| 418 | sizeof(struct ieee_types_header), |
| 419 | le16_to_cpu(bss_co_2040->header.len)); |
| 420 | |
| 421 | *buffer += sizeof(struct mwifiex_ie_types_2040bssco); |
| 422 | ret_len += sizeof(struct mwifiex_ie_types_2040bssco); |
| 423 | } |
| 424 | |
| 425 | if (bss_desc->bcn_ext_cap) { |
| 426 | ext_cap = (struct mwifiex_ie_types_extcap *) *buffer; |
| 427 | memset(ext_cap, 0, sizeof(struct mwifiex_ie_types_extcap)); |
| 428 | ext_cap->header.type = cpu_to_le16(WLAN_EID_EXT_CAPABILITY); |
| 429 | ext_cap->header.len = cpu_to_le16(sizeof(ext_cap->ext_cap)); |
| 430 | |
| 431 | memcpy((u8 *) ext_cap + |
| 432 | sizeof(struct mwifiex_ie_types_header), |
| 433 | (u8 *) bss_desc->bcn_ext_cap + |
| 434 | sizeof(struct ieee_types_header), |
| 435 | le16_to_cpu(ext_cap->header.len)); |
| 436 | |
| 437 | *buffer += sizeof(struct mwifiex_ie_types_extcap); |
| 438 | ret_len += sizeof(struct mwifiex_ie_types_extcap); |
| 439 | } |
| 440 | |
| 441 | return ret_len; |
| 442 | } |
| 443 | |
| 444 | /* |
| 445 | * This function reconfigures the Tx buffer size in firmware. |
| 446 | * |
| 447 | * This function prepares a firmware command and issues it, if |
| 448 | * the current Tx buffer size is different from the one requested. |
| 449 | * Maximum configurable Tx buffer size is limited by the HT capability |
| 450 | * field value. |
| 451 | */ |
| 452 | void |
| 453 | mwifiex_cfg_tx_buf(struct mwifiex_private *priv, |
| 454 | struct mwifiex_bssdescriptor *bss_desc) |
| 455 | { |
| 456 | u16 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_2K; |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 457 | u16 tx_buf, curr_tx_buf_size = 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 458 | |
| 459 | if (bss_desc->bcn_ht_cap) { |
Marc Yang | 6d2bd91 | 2011-03-25 19:47:02 -0700 | [diff] [blame] | 460 | if (le16_to_cpu(bss_desc->bcn_ht_cap->cap_info) & |
| 461 | IEEE80211_HT_CAP_MAX_AMSDU) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 462 | max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_8K; |
| 463 | else |
| 464 | max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_4K; |
| 465 | } |
| 466 | |
| 467 | tx_buf = min(priv->adapter->max_tx_buf_size, max_amsdu); |
| 468 | |
| 469 | dev_dbg(priv->adapter->dev, "info: max_amsdu=%d, max_tx_buf=%d\n", |
| 470 | max_amsdu, priv->adapter->max_tx_buf_size); |
| 471 | |
| 472 | if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_2K) |
| 473 | curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; |
| 474 | else if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_4K) |
| 475 | curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K; |
| 476 | else if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_8K) |
| 477 | curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_8K; |
| 478 | if (curr_tx_buf_size != tx_buf) |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 479 | mwifiex_send_cmd_async(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF, |
| 480 | HostCmd_ACT_GEN_SET, 0, &tx_buf); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | /* |
| 484 | * This function checks if the given pointer is valid entry of |
| 485 | * Tx BA Stream table. |
| 486 | */ |
| 487 | static int mwifiex_is_tx_ba_stream_ptr_valid(struct mwifiex_private *priv, |
| 488 | struct mwifiex_tx_ba_stream_tbl *tx_tbl_ptr) |
| 489 | { |
| 490 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; |
| 491 | |
| 492 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { |
| 493 | if (tx_ba_tsr_tbl == tx_tbl_ptr) |
| 494 | return true; |
| 495 | } |
| 496 | |
| 497 | return false; |
| 498 | } |
| 499 | |
| 500 | /* |
| 501 | * This function deletes the given entry in Tx BA Stream table. |
| 502 | * |
| 503 | * The function also performs a validity check on the supplied |
| 504 | * pointer before trying to delete. |
| 505 | */ |
| 506 | void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv, |
| 507 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl) |
| 508 | { |
| 509 | if (!tx_ba_tsr_tbl && |
| 510 | mwifiex_is_tx_ba_stream_ptr_valid(priv, tx_ba_tsr_tbl)) |
| 511 | return; |
| 512 | |
| 513 | dev_dbg(priv->adapter->dev, "info: tx_ba_tsr_tbl %p\n", tx_ba_tsr_tbl); |
| 514 | |
| 515 | list_del(&tx_ba_tsr_tbl->list); |
| 516 | |
| 517 | kfree(tx_ba_tsr_tbl); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | /* |
| 521 | * This function deletes all the entries in Tx BA Stream table. |
| 522 | */ |
| 523 | void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv) |
| 524 | { |
| 525 | int i; |
| 526 | struct mwifiex_tx_ba_stream_tbl *del_tbl_ptr, *tmp_node; |
| 527 | unsigned long flags; |
| 528 | |
| 529 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); |
| 530 | list_for_each_entry_safe(del_tbl_ptr, tmp_node, |
| 531 | &priv->tx_ba_stream_tbl_ptr, list) |
| 532 | mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, del_tbl_ptr); |
| 533 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); |
| 534 | |
| 535 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); |
| 536 | |
| 537 | for (i = 0; i < MAX_NUM_TID; ++i) |
| 538 | priv->aggr_prio_tbl[i].ampdu_ap = |
| 539 | priv->aggr_prio_tbl[i].ampdu_user; |
| 540 | } |
| 541 | |
| 542 | /* |
| 543 | * This function returns the pointer to an entry in BA Stream |
| 544 | * table which matches the given RA/TID pair. |
| 545 | */ |
| 546 | struct mwifiex_tx_ba_stream_tbl * |
| 547 | mwifiex_11n_get_tx_ba_stream_tbl(struct mwifiex_private *priv, |
| 548 | int tid, u8 *ra) |
| 549 | { |
| 550 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; |
| 551 | unsigned long flags; |
| 552 | |
| 553 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); |
| 554 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { |
| 555 | if ((!memcmp(tx_ba_tsr_tbl->ra, ra, ETH_ALEN)) |
| 556 | && (tx_ba_tsr_tbl->tid == tid)) { |
| 557 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, |
| 558 | flags); |
| 559 | return tx_ba_tsr_tbl; |
| 560 | } |
| 561 | } |
| 562 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); |
| 563 | return NULL; |
| 564 | } |
| 565 | |
| 566 | /* |
| 567 | * This function creates an entry in Tx BA stream table for the |
| 568 | * given RA/TID pair. |
| 569 | */ |
| 570 | void mwifiex_11n_create_tx_ba_stream_tbl(struct mwifiex_private *priv, |
| 571 | u8 *ra, int tid, |
| 572 | enum mwifiex_ba_status ba_status) |
| 573 | { |
| 574 | struct mwifiex_tx_ba_stream_tbl *new_node; |
| 575 | unsigned long flags; |
| 576 | |
| 577 | if (!mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, ra)) { |
| 578 | new_node = kzalloc(sizeof(struct mwifiex_tx_ba_stream_tbl), |
| 579 | GFP_ATOMIC); |
| 580 | if (!new_node) { |
| 581 | dev_err(priv->adapter->dev, |
| 582 | "%s: failed to alloc new_node\n", __func__); |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | INIT_LIST_HEAD(&new_node->list); |
| 587 | |
| 588 | new_node->tid = tid; |
| 589 | new_node->ba_status = ba_status; |
| 590 | memcpy(new_node->ra, ra, ETH_ALEN); |
| 591 | |
| 592 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); |
| 593 | list_add_tail(&new_node->list, &priv->tx_ba_stream_tbl_ptr); |
| 594 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); |
| 595 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 596 | } |
| 597 | |
| 598 | /* |
| 599 | * This function sends an add BA request to the given TID/RA pair. |
| 600 | */ |
| 601 | int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac) |
| 602 | { |
| 603 | struct host_cmd_ds_11n_addba_req add_ba_req; |
| 604 | static u8 dialog_tok; |
| 605 | int ret; |
| 606 | |
| 607 | dev_dbg(priv->adapter->dev, "cmd: %s: tid %d\n", __func__, tid); |
| 608 | |
| 609 | add_ba_req.block_ack_param_set = cpu_to_le16( |
| 610 | (u16) ((tid << BLOCKACKPARAM_TID_POS) | |
| 611 | (priv->add_ba_param. |
| 612 | tx_win_size << BLOCKACKPARAM_WINSIZE_POS) | |
| 613 | IMMEDIATE_BLOCK_ACK)); |
| 614 | add_ba_req.block_ack_tmo = cpu_to_le16((u16)priv->add_ba_param.timeout); |
| 615 | |
| 616 | ++dialog_tok; |
| 617 | |
| 618 | if (dialog_tok == 0) |
| 619 | dialog_tok = 1; |
| 620 | |
| 621 | add_ba_req.dialog_token = dialog_tok; |
| 622 | memcpy(&add_ba_req.peer_mac_addr, peer_mac, ETH_ALEN); |
| 623 | |
| 624 | /* We don't wait for the response of this command */ |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 625 | ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_REQ, |
| 626 | 0, 0, &add_ba_req); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 627 | |
| 628 | return ret; |
| 629 | } |
| 630 | |
| 631 | /* |
| 632 | * This function sends a delete BA request to the given TID/RA pair. |
| 633 | */ |
| 634 | int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac, |
| 635 | int initiator) |
| 636 | { |
| 637 | struct host_cmd_ds_11n_delba delba; |
| 638 | int ret; |
| 639 | uint16_t del_ba_param_set; |
| 640 | |
| 641 | memset(&delba, 0, sizeof(delba)); |
| 642 | delba.del_ba_param_set = cpu_to_le16(tid << DELBA_TID_POS); |
| 643 | |
| 644 | del_ba_param_set = le16_to_cpu(delba.del_ba_param_set); |
| 645 | if (initiator) |
| 646 | del_ba_param_set |= IEEE80211_DELBA_PARAM_INITIATOR_MASK; |
| 647 | else |
| 648 | del_ba_param_set &= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK; |
| 649 | |
| 650 | memcpy(&delba.peer_mac_addr, peer_mac, ETH_ALEN); |
| 651 | |
| 652 | /* We don't wait for the response of this command */ |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 653 | ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_DELBA, |
| 654 | HostCmd_ACT_GEN_SET, 0, &delba); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 655 | |
| 656 | return ret; |
| 657 | } |
| 658 | |
| 659 | /* |
| 660 | * This function handles the command response of a delete BA request. |
| 661 | */ |
| 662 | void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba) |
| 663 | { |
| 664 | struct host_cmd_ds_11n_delba *cmd_del_ba = |
| 665 | (struct host_cmd_ds_11n_delba *) del_ba; |
| 666 | uint16_t del_ba_param_set = le16_to_cpu(cmd_del_ba->del_ba_param_set); |
| 667 | int tid; |
| 668 | |
| 669 | tid = del_ba_param_set >> DELBA_TID_POS; |
| 670 | |
| 671 | mwifiex_11n_delete_ba_stream_tbl(priv, tid, cmd_del_ba->peer_mac_addr, |
| 672 | TYPE_DELBA_RECEIVE, |
| 673 | INITIATOR_BIT(del_ba_param_set)); |
| 674 | } |
| 675 | |
| 676 | /* |
| 677 | * This function retrieves the Rx reordering table. |
| 678 | */ |
| 679 | int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv, |
| 680 | struct mwifiex_ds_rx_reorder_tbl *buf) |
| 681 | { |
| 682 | int i; |
| 683 | struct mwifiex_ds_rx_reorder_tbl *rx_reo_tbl = buf; |
| 684 | struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr; |
| 685 | int count = 0; |
| 686 | unsigned long flags; |
| 687 | |
| 688 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); |
| 689 | list_for_each_entry(rx_reorder_tbl_ptr, &priv->rx_reorder_tbl_ptr, |
| 690 | list) { |
| 691 | rx_reo_tbl->tid = (u16) rx_reorder_tbl_ptr->tid; |
| 692 | memcpy(rx_reo_tbl->ta, rx_reorder_tbl_ptr->ta, ETH_ALEN); |
| 693 | rx_reo_tbl->start_win = rx_reorder_tbl_ptr->start_win; |
| 694 | rx_reo_tbl->win_size = rx_reorder_tbl_ptr->win_size; |
| 695 | for (i = 0; i < rx_reorder_tbl_ptr->win_size; ++i) { |
| 696 | if (rx_reorder_tbl_ptr->rx_reorder_ptr[i]) |
| 697 | rx_reo_tbl->buffer[i] = true; |
| 698 | else |
| 699 | rx_reo_tbl->buffer[i] = false; |
| 700 | } |
| 701 | rx_reo_tbl++; |
| 702 | count++; |
| 703 | |
| 704 | if (count >= MWIFIEX_MAX_RX_BASTREAM_SUPPORTED) |
| 705 | break; |
| 706 | } |
| 707 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); |
| 708 | |
| 709 | return count; |
| 710 | } |
| 711 | |
| 712 | /* |
| 713 | * This function retrieves the Tx BA stream table. |
| 714 | */ |
| 715 | int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv, |
| 716 | struct mwifiex_ds_tx_ba_stream_tbl *buf) |
| 717 | { |
| 718 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; |
| 719 | struct mwifiex_ds_tx_ba_stream_tbl *rx_reo_tbl = buf; |
| 720 | int count = 0; |
| 721 | unsigned long flags; |
| 722 | |
| 723 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); |
| 724 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { |
| 725 | rx_reo_tbl->tid = (u16) tx_ba_tsr_tbl->tid; |
| 726 | dev_dbg(priv->adapter->dev, "data: %s tid=%d\n", |
| 727 | __func__, rx_reo_tbl->tid); |
| 728 | memcpy(rx_reo_tbl->ra, tx_ba_tsr_tbl->ra, ETH_ALEN); |
| 729 | rx_reo_tbl++; |
| 730 | count++; |
| 731 | if (count >= MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) |
| 732 | break; |
| 733 | } |
| 734 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); |
| 735 | |
| 736 | return count; |
| 737 | } |