drivers/net/wireless/ti/wlcore/cmd.c

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This source file includes following definitions.
__wlcore_cmd_send
wlcore_cmd_send_failsafe
wl1271_cmd_send
wlcore_cmd_wait_for_event_or_timeout
wl12xx_cmd_role_enable
wl12xx_cmd_role_disable
wlcore_get_new_session_id
wl12xx_allocate_link
wl12xx_free_link
wlcore_get_native_channel_type
wl12xx_cmd_role_start_dev
wl12xx_cmd_role_stop_dev
wl12xx_cmd_role_start_sta
wl12xx_cmd_role_stop_sta
wl12xx_cmd_role_start_ap
wl12xx_cmd_role_stop_ap
wl12xx_cmd_role_start_ibss
wl1271_cmd_test
wl1271_cmd_interrogate
wlcore_cmd_configure_failsafe
wl1271_cmd_configure
wl1271_cmd_data_path
wl1271_cmd_ps_mode
wl1271_cmd_template_set
wl12xx_cmd_build_null_data
wl12xx_cmd_build_klv_null_data
wl1271_cmd_build_ps_poll
wl12xx_cmd_build_probe_req
wl1271_cmd_build_ap_probe_req
wl1271_cmd_build_arp_rsp
wl1271_build_qos_null_data
wl12xx_cmd_set_default_wep_key
wl1271_cmd_set_sta_key
wl1271_cmd_set_ap_key
wl12xx_cmd_set_peer_state
wl12xx_cmd_add_peer
wl12xx_cmd_remove_peer
wlcore_get_reg_conf_ch_idx
wlcore_set_pending_regdomain_ch
wlcore_cmd_regdomain_config_locked
wl12xx_cmd_config_fwlog
wl12xx_cmd_start_fwlog
wl12xx_cmd_stop_fwlog
wl12xx_cmd_roc
wl12xx_cmd_croc
wl12xx_roc
wl12xx_croc
wl12xx_cmd_stop_channel_switch
wl12xx_start_dev
wl12xx_stop_dev
wlcore_cmd_generic_cfg
   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * This file is part of wl1271
   4  *
   5  * Copyright (C) 2009-2010 Nokia Corporation
   6  *
   7  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   8  */
   9 
  10 #include <linux/module.h>
  11 #include <linux/platform_device.h>
  12 #include <linux/pm_runtime.h>
  13 #include <linux/spi/spi.h>
  14 #include <linux/etherdevice.h>
  15 #include <linux/ieee80211.h>
  16 #include <linux/slab.h>
  17 
  18 #include "wlcore.h"
  19 #include "debug.h"
  20 #include "io.h"
  21 #include "acx.h"
  22 #include "wl12xx_80211.h"
  23 #include "cmd.h"
  24 #include "event.h"
  25 #include "tx.h"
  26 #include "hw_ops.h"
  27 
  28 #define WL1271_CMD_FAST_POLL_COUNT       50
  29 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20
  30 
  31 /*
  32  * send command to firmware
  33  *
  34  * @wl: wl struct
  35  * @id: command id
  36  * @buf: buffer containing the command, must work with dma
  37  * @len: length of the buffer
  38  * return the cmd status code on success.
  39  */
  40 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf,
  41                              size_t len, size_t res_len)
  42 {
  43         struct wl1271_cmd_header *cmd;
  44         unsigned long timeout;
  45         u32 intr;
  46         int ret;
  47         u16 status;
  48         u16 poll_count = 0;
  49 
  50         if (unlikely(wl->state == WLCORE_STATE_RESTARTING &&
  51                      id != CMD_STOP_FWLOGGER))
  52                 return -EIO;
  53 
  54         if (WARN_ON_ONCE(len < sizeof(*cmd)))
  55                 return -EIO;
  56 
  57         cmd = buf;
  58         cmd->id = cpu_to_le16(id);
  59         cmd->status = 0;
  60 
  61         WARN_ON(len % 4 != 0);
  62         WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
  63 
  64         ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
  65         if (ret < 0)
  66                 return ret;
  67 
  68         /*
  69          * TODO: we just need this because one bit is in a different
  70          * place.  Is there any better way?
  71          */
  72         ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
  73         if (ret < 0)
  74                 return ret;
  75 
  76         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  77 
  78         ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
  79         if (ret < 0)
  80                 return ret;
  81 
  82         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  83                 if (time_after(jiffies, timeout)) {
  84                         wl1271_error("command complete timeout");
  85                         return -ETIMEDOUT;
  86                 }
  87 
  88                 poll_count++;
  89                 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
  90                         udelay(10);
  91                 else
  92                         msleep(1);
  93 
  94                 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
  95                 if (ret < 0)
  96                         return ret;
  97         }
  98 
  99         /* read back the status code of the command */
 100         if (res_len == 0)
 101                 res_len = sizeof(struct wl1271_cmd_header);
 102 
 103         ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false);
 104         if (ret < 0)
 105                 return ret;
 106 
 107         status = le16_to_cpu(cmd->status);
 108 
 109         ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK,
 110                                WL1271_ACX_INTR_CMD_COMPLETE);
 111         if (ret < 0)
 112                 return ret;
 113 
 114         return status;
 115 }
 116 
 117 /*
 118  * send command to fw and return cmd status on success
 119  * valid_rets contains a bitmap of allowed error codes
 120  */
 121 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf,
 122                                     size_t len, size_t res_len,
 123                                     unsigned long valid_rets)
 124 {
 125         int ret = __wlcore_cmd_send(wl, id, buf, len, res_len);
 126 
 127         if (ret < 0)
 128                 goto fail;
 129 
 130         /* success is always a valid status */
 131         valid_rets |= BIT(CMD_STATUS_SUCCESS);
 132 
 133         if (ret >= MAX_COMMAND_STATUS ||
 134             !test_bit(ret, &valid_rets)) {
 135                 wl1271_error("command execute failure %d", ret);
 136                 ret = -EIO;
 137                 goto fail;
 138         }
 139         return ret;
 140 fail:
 141         wl12xx_queue_recovery_work(wl);
 142         return ret;
 143 }
 144 
 145 /*
 146  * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS
 147  * return 0 on success.
 148  */
 149 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
 150                     size_t res_len)
 151 {
 152         int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0);
 153 
 154         if (ret < 0)
 155                 return ret;
 156         return 0;
 157 }
 158 EXPORT_SYMBOL_GPL(wl1271_cmd_send);
 159 
 160 /*
 161  * Poll the mailbox event field until any of the bits in the mask is set or a
 162  * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 163  */
 164 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl,
 165                                          u32 mask, bool *timeout)
 166 {
 167         u32 *events_vector;
 168         u32 event;
 169         unsigned long timeout_time;
 170         u16 poll_count = 0;
 171         int ret = 0;
 172 
 173         *timeout = false;
 174 
 175         events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA);
 176         if (!events_vector)
 177                 return -ENOMEM;
 178 
 179         timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 180 
 181         ret = pm_runtime_get_sync(wl->dev);
 182         if (ret < 0) {
 183                 pm_runtime_put_noidle(wl->dev);
 184                 goto free_vector;
 185         }
 186 
 187         do {
 188                 if (time_after(jiffies, timeout_time)) {
 189                         wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
 190                                      (int)mask);
 191                         *timeout = true;
 192                         goto out;
 193                 }
 194 
 195                 poll_count++;
 196                 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT)
 197                         usleep_range(50, 51);
 198                 else
 199                         usleep_range(1000, 5000);
 200 
 201                 /* read from both event fields */
 202                 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector,
 203                                   sizeof(*events_vector), false);
 204                 if (ret < 0)
 205                         goto out;
 206 
 207                 event = *events_vector & mask;
 208 
 209                 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector,
 210                                   sizeof(*events_vector), false);
 211                 if (ret < 0)
 212                         goto out;
 213 
 214                 event |= *events_vector & mask;
 215         } while (!event);
 216 
 217 out:
 218         pm_runtime_mark_last_busy(wl->dev);
 219         pm_runtime_put_autosuspend(wl->dev);
 220 free_vector:
 221         kfree(events_vector);
 222         return ret;
 223 }
 224 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
 225 
 226 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
 227                            u8 *role_id)
 228 {
 229         struct wl12xx_cmd_role_enable *cmd;
 230         int ret;
 231 
 232         wl1271_debug(DEBUG_CMD, "cmd role enable");
 233 
 234         if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
 235                 return -EBUSY;
 236 
 237         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 238         if (!cmd) {
 239                 ret = -ENOMEM;
 240                 goto out;
 241         }
 242 
 243         /* get role id */
 244         cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
 245         if (cmd->role_id >= WL12XX_MAX_ROLES) {
 246                 ret = -EBUSY;
 247                 goto out_free;
 248         }
 249 
 250         memcpy(cmd->mac_address, addr, ETH_ALEN);
 251         cmd->role_type = role_type;
 252 
 253         ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
 254         if (ret < 0) {
 255                 wl1271_error("failed to initiate cmd role enable");
 256                 goto out_free;
 257         }
 258 
 259         __set_bit(cmd->role_id, wl->roles_map);
 260         *role_id = cmd->role_id;
 261 
 262 out_free:
 263         kfree(cmd);
 264 
 265 out:
 266         return ret;
 267 }
 268 
 269 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
 270 {
 271         struct wl12xx_cmd_role_disable *cmd;
 272         int ret;
 273 
 274         wl1271_debug(DEBUG_CMD, "cmd role disable");
 275 
 276         if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
 277                 return -ENOENT;
 278 
 279         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 280         if (!cmd) {
 281                 ret = -ENOMEM;
 282                 goto out;
 283         }
 284         cmd->role_id = *role_id;
 285 
 286         ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
 287         if (ret < 0) {
 288                 wl1271_error("failed to initiate cmd role disable");
 289                 goto out_free;
 290         }
 291 
 292         __clear_bit(*role_id, wl->roles_map);
 293         *role_id = WL12XX_INVALID_ROLE_ID;
 294 
 295 out_free:
 296         kfree(cmd);
 297 
 298 out:
 299         return ret;
 300 }
 301 
 302 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
 303 {
 304         if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
 305                 wl->session_ids[hlid] = 0;
 306 
 307         wl->session_ids[hlid]++;
 308 
 309         return wl->session_ids[hlid];
 310 }
 311 
 312 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
 313 {
 314         unsigned long flags;
 315         u8 link = find_first_zero_bit(wl->links_map, wl->num_links);
 316         if (link >= wl->num_links)
 317                 return -EBUSY;
 318 
 319         wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
 320 
 321         /* these bits are used by op_tx */
 322         spin_lock_irqsave(&wl->wl_lock, flags);
 323         __set_bit(link, wl->links_map);
 324         __set_bit(link, wlvif->links_map);
 325         spin_unlock_irqrestore(&wl->wl_lock, flags);
 326 
 327         /*
 328          * take the last "freed packets" value from the current FW status.
 329          * on recovery, we might not have fw_status yet, and
 330          * tx_lnk_free_pkts will be NULL. check for it.
 331          */
 332         if (wl->fw_status->counters.tx_lnk_free_pkts)
 333                 wl->links[link].prev_freed_pkts =
 334                         wl->fw_status->counters.tx_lnk_free_pkts[link];
 335         wl->links[link].wlvif = wlvif;
 336 
 337         /*
 338          * Take saved value for total freed packets from wlvif, in case this is
 339          * recovery/resume
 340          */
 341         if (wlvif->bss_type != BSS_TYPE_AP_BSS)
 342                 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
 343 
 344         *hlid = link;
 345 
 346         wl->active_link_count++;
 347         return 0;
 348 }
 349 
 350 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
 351 {
 352         unsigned long flags;
 353 
 354         if (*hlid == WL12XX_INVALID_LINK_ID)
 355                 return;
 356 
 357         /* these bits are used by op_tx */
 358         spin_lock_irqsave(&wl->wl_lock, flags);
 359         __clear_bit(*hlid, wl->links_map);
 360         __clear_bit(*hlid, wlvif->links_map);
 361         spin_unlock_irqrestore(&wl->wl_lock, flags);
 362 
 363         wl->links[*hlid].allocated_pkts = 0;
 364         wl->links[*hlid].prev_freed_pkts = 0;
 365         wl->links[*hlid].ba_bitmap = 0;
 366         eth_zero_addr(wl->links[*hlid].addr);
 367 
 368         /*
 369          * At this point op_tx() will not add more packets to the queues. We
 370          * can purge them.
 371          */
 372         wl1271_tx_reset_link_queues(wl, *hlid);
 373         wl->links[*hlid].wlvif = NULL;
 374 
 375         if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
 376             *hlid == wlvif->ap.bcast_hlid) {
 377                 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
 378                 /*
 379                  * save the total freed packets in the wlvif, in case this is
 380                  * recovery or suspend
 381                  */
 382                 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
 383 
 384                 /*
 385                  * increment the initial seq number on recovery to account for
 386                  * transmitted packets that we haven't yet got in the FW status
 387                  */
 388                 if (wlvif->encryption_type == KEY_GEM)
 389                         sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
 390 
 391                 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
 392                         wlvif->total_freed_pkts += sqn_padding;
 393         }
 394 
 395         wl->links[*hlid].total_freed_pkts = 0;
 396 
 397         *hlid = WL12XX_INVALID_LINK_ID;
 398         wl->active_link_count--;
 399         WARN_ON_ONCE(wl->active_link_count < 0);
 400 }
 401 
 402 u8 wlcore_get_native_channel_type(u8 nl_channel_type)
 403 {
 404         switch (nl_channel_type) {
 405         case NL80211_CHAN_NO_HT:
 406                 return WLCORE_CHAN_NO_HT;
 407         case NL80211_CHAN_HT20:
 408                 return WLCORE_CHAN_HT20;
 409         case NL80211_CHAN_HT40MINUS:
 410                 return WLCORE_CHAN_HT40MINUS;
 411         case NL80211_CHAN_HT40PLUS:
 412                 return WLCORE_CHAN_HT40PLUS;
 413         default:
 414                 WARN_ON(1);
 415                 return WLCORE_CHAN_NO_HT;
 416         }
 417 }
 418 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type);
 419 
 420 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
 421                                      struct wl12xx_vif *wlvif,
 422                                      enum nl80211_band band,
 423                                      int channel)
 424 {
 425         struct wl12xx_cmd_role_start *cmd;
 426         int ret;
 427 
 428         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 429         if (!cmd) {
 430                 ret = -ENOMEM;
 431                 goto out;
 432         }
 433 
 434         wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
 435 
 436         cmd->role_id = wlvif->dev_role_id;
 437         if (band == NL80211_BAND_5GHZ)
 438                 cmd->band = WLCORE_BAND_5GHZ;
 439         cmd->channel = channel;
 440 
 441         if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
 442                 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
 443                 if (ret)
 444                         goto out_free;
 445         }
 446         cmd->device.hlid = wlvif->dev_hlid;
 447         cmd->device.session = wl->session_ids[wlvif->dev_hlid];
 448 
 449         wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
 450                      cmd->role_id, cmd->device.hlid, cmd->device.session);
 451 
 452         ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 453         if (ret < 0) {
 454                 wl1271_error("failed to initiate cmd role enable");
 455                 goto err_hlid;
 456         }
 457 
 458         goto out_free;
 459 
 460 err_hlid:
 461         /* clear links on error */
 462         wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
 463 
 464 out_free:
 465         kfree(cmd);
 466 
 467 out:
 468         return ret;
 469 }
 470 
 471 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
 472                                     struct wl12xx_vif *wlvif)
 473 {
 474         struct wl12xx_cmd_role_stop *cmd;
 475         int ret;
 476 
 477         if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
 478                 return -EINVAL;
 479 
 480         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 481         if (!cmd) {
 482                 ret = -ENOMEM;
 483                 goto out;
 484         }
 485 
 486         wl1271_debug(DEBUG_CMD, "cmd role stop dev");
 487 
 488         cmd->role_id = wlvif->dev_role_id;
 489         cmd->disc_type = DISCONNECT_IMMEDIATE;
 490         cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
 491 
 492         ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
 493         if (ret < 0) {
 494                 wl1271_error("failed to initiate cmd role stop");
 495                 goto out_free;
 496         }
 497 
 498         wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
 499 
 500 out_free:
 501         kfree(cmd);
 502 
 503 out:
 504         return ret;
 505 }
 506 
 507 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 508 {
 509         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 510         struct wl12xx_cmd_role_start *cmd;
 511         u32 supported_rates;
 512         int ret;
 513 
 514         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 515         if (!cmd) {
 516                 ret = -ENOMEM;
 517                 goto out;
 518         }
 519 
 520         wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
 521 
 522         cmd->role_id = wlvif->role_id;
 523         if (wlvif->band == NL80211_BAND_5GHZ)
 524                 cmd->band = WLCORE_BAND_5GHZ;
 525         cmd->channel = wlvif->channel;
 526         cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
 527         cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
 528         cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
 529         cmd->sta.ssid_len = wlvif->ssid_len;
 530         memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
 531         memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
 532 
 533         supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
 534                           wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
 535         if (wlvif->p2p)
 536                 supported_rates &= ~CONF_TX_CCK_RATES;
 537 
 538         cmd->sta.local_rates = cpu_to_le32(supported_rates);
 539 
 540         cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
 541 
 542         if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
 543                 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
 544                 if (ret)
 545                         goto out_free;
 546         }
 547         cmd->sta.hlid = wlvif->sta.hlid;
 548         cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
 549         /*
 550          * We don't have the correct remote rates in this stage.  The
 551          * rates will be reconfigured later, after association, if the
 552          * firmware supports ACX_PEER_CAP.  Otherwise, there's nothing
 553          * we can do, so use all supported_rates here.
 554          */
 555         cmd->sta.remote_rates = cpu_to_le32(supported_rates);
 556 
 557         wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
 558                      "basic_rate_set: 0x%x, remote_rates: 0x%x",
 559                      wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
 560                      wlvif->basic_rate_set, wlvif->rate_set);
 561 
 562         ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 563         if (ret < 0) {
 564                 wl1271_error("failed to initiate cmd role start sta");
 565                 goto err_hlid;
 566         }
 567 
 568         wlvif->sta.role_chan_type = wlvif->channel_type;
 569         goto out_free;
 570 
 571 err_hlid:
 572         /* clear links on error. */
 573         wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
 574 
 575 out_free:
 576         kfree(cmd);
 577 
 578 out:
 579         return ret;
 580 }
 581 
 582 /* use this function to stop ibss as well */
 583 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 584 {
 585         struct wl12xx_cmd_role_stop *cmd;
 586         int ret;
 587 
 588         if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
 589                 return -EINVAL;
 590 
 591         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 592         if (!cmd) {
 593                 ret = -ENOMEM;
 594                 goto out;
 595         }
 596 
 597         wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
 598 
 599         cmd->role_id = wlvif->role_id;
 600         cmd->disc_type = DISCONNECT_IMMEDIATE;
 601         cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
 602 
 603         ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
 604         if (ret < 0) {
 605                 wl1271_error("failed to initiate cmd role stop sta");
 606                 goto out_free;
 607         }
 608 
 609         wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
 610 
 611 out_free:
 612         kfree(cmd);
 613 
 614 out:
 615         return ret;
 616 }
 617 
 618 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 619 {
 620         struct wl12xx_cmd_role_start *cmd;
 621         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 622         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 623         u32 supported_rates;
 624         int ret;
 625 
 626         wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
 627 
 628         /* If MESH --> ssid_len is always 0 */
 629         if (!ieee80211_vif_is_mesh(vif)) {
 630                 /* trying to use hidden SSID with an old hostapd version */
 631                 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
 632                         wl1271_error("got a null SSID from beacon/bss");
 633                         ret = -EINVAL;
 634                         goto out;
 635                 }
 636         }
 637 
 638         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 639         if (!cmd) {
 640                 ret = -ENOMEM;
 641                 goto out;
 642         }
 643 
 644         ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
 645         if (ret < 0)
 646                 goto out_free;
 647 
 648         ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
 649         if (ret < 0)
 650                 goto out_free_global;
 651 
 652         /* use the previous security seq, if this is a recovery/resume */
 653         wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
 654                                                 wlvif->total_freed_pkts;
 655 
 656         cmd->role_id = wlvif->role_id;
 657         cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
 658         cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
 659         cmd->ap.global_hlid = wlvif->ap.global_hlid;
 660         cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
 661         cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
 662         cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
 663         cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
 664         cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
 665         cmd->ap.dtim_interval = bss_conf->dtim_period;
 666         cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
 667         /* FIXME: Change when adding DFS */
 668         cmd->ap.reset_tsf = 1;  /* By default reset AP TSF */
 669         cmd->ap.wmm = wlvif->wmm_enabled;
 670         cmd->channel = wlvif->channel;
 671         cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
 672 
 673         if (!bss_conf->hidden_ssid) {
 674                 /* take the SSID from the beacon for backward compatibility */
 675                 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
 676                 cmd->ap.ssid_len = wlvif->ssid_len;
 677                 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
 678         } else {
 679                 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
 680                 cmd->ap.ssid_len = bss_conf->ssid_len;
 681                 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
 682         }
 683 
 684         supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
 685                 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
 686         if (wlvif->p2p)
 687                 supported_rates &= ~CONF_TX_CCK_RATES;
 688 
 689         wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
 690                      supported_rates);
 691 
 692         cmd->ap.local_rates = cpu_to_le32(supported_rates);
 693 
 694         switch (wlvif->band) {
 695         case NL80211_BAND_2GHZ:
 696                 cmd->band = WLCORE_BAND_2_4GHZ;
 697                 break;
 698         case NL80211_BAND_5GHZ:
 699                 cmd->band = WLCORE_BAND_5GHZ;
 700                 break;
 701         default:
 702                 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
 703                 cmd->band = WLCORE_BAND_2_4GHZ;
 704                 break;
 705         }
 706 
 707         ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 708         if (ret < 0) {
 709                 wl1271_error("failed to initiate cmd role start ap");
 710                 goto out_free_bcast;
 711         }
 712 
 713         goto out_free;
 714 
 715 out_free_bcast:
 716         wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
 717 
 718 out_free_global:
 719         wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
 720 
 721 out_free:
 722         kfree(cmd);
 723 
 724 out:
 725         return ret;
 726 }
 727 
 728 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 729 {
 730         struct wl12xx_cmd_role_stop *cmd;
 731         int ret;
 732 
 733         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 734         if (!cmd) {
 735                 ret = -ENOMEM;
 736                 goto out;
 737         }
 738 
 739         wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
 740 
 741         cmd->role_id = wlvif->role_id;
 742 
 743         ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
 744         if (ret < 0) {
 745                 wl1271_error("failed to initiate cmd role stop ap");
 746                 goto out_free;
 747         }
 748 
 749         wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
 750         wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
 751 
 752 out_free:
 753         kfree(cmd);
 754 
 755 out:
 756         return ret;
 757 }
 758 
 759 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 760 {
 761         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 762         struct wl12xx_cmd_role_start *cmd;
 763         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 764         int ret;
 765 
 766         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 767         if (!cmd) {
 768                 ret = -ENOMEM;
 769                 goto out;
 770         }
 771 
 772         wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
 773 
 774         cmd->role_id = wlvif->role_id;
 775         if (wlvif->band == NL80211_BAND_5GHZ)
 776                 cmd->band = WLCORE_BAND_5GHZ;
 777         cmd->channel = wlvif->channel;
 778         cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
 779         cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
 780         cmd->ibss.dtim_interval = bss_conf->dtim_period;
 781         cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
 782         cmd->ibss.ssid_len = wlvif->ssid_len;
 783         memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
 784         memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
 785         cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
 786 
 787         if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
 788                 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
 789                 if (ret)
 790                         goto out_free;
 791         }
 792         cmd->ibss.hlid = wlvif->sta.hlid;
 793         cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
 794 
 795         wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
 796                      "basic_rate_set: 0x%x, remote_rates: 0x%x",
 797                      wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
 798                      wlvif->basic_rate_set, wlvif->rate_set);
 799 
 800         wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
 801                      vif->bss_conf.bssid);
 802 
 803         ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
 804         if (ret < 0) {
 805                 wl1271_error("failed to initiate cmd role enable");
 806                 goto err_hlid;
 807         }
 808 
 809         goto out_free;
 810 
 811 err_hlid:
 812         /* clear links on error. */
 813         wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
 814 
 815 out_free:
 816         kfree(cmd);
 817 
 818 out:
 819         return ret;
 820 }
 821 
 822 
 823 /**
 824  * send test command to firmware
 825  *
 826  * @wl: wl struct
 827  * @buf: buffer containing the command, with all headers, must work with dma
 828  * @len: length of the buffer
 829  * @answer: is answer needed
 830  */
 831 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 832 {
 833         int ret;
 834         size_t res_len = 0;
 835 
 836         wl1271_debug(DEBUG_CMD, "cmd test");
 837 
 838         if (answer)
 839                 res_len = buf_len;
 840 
 841         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 842 
 843         if (ret < 0) {
 844                 wl1271_warning("TEST command failed");
 845                 return ret;
 846         }
 847 
 848         return ret;
 849 }
 850 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
 851 
 852 /**
 853  * read acx from firmware
 854  *
 855  * @wl: wl struct
 856  * @id: acx id
 857  * @buf: buffer for the response, including all headers, must work with dma
 858  * @len: length of buf
 859  */
 860 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
 861                            size_t cmd_len, size_t res_len)
 862 {
 863         struct acx_header *acx = buf;
 864         int ret;
 865 
 866         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 867 
 868         acx->id = cpu_to_le16(id);
 869 
 870         /* response payload length, does not include any headers */
 871         acx->len = cpu_to_le16(res_len - sizeof(*acx));
 872 
 873         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
 874         if (ret < 0)
 875                 wl1271_error("INTERROGATE command failed");
 876 
 877         return ret;
 878 }
 879 
 880 /**
 881  * write acx value to firmware
 882  *
 883  * @wl: wl struct
 884  * @id: acx id
 885  * @buf: buffer containing acx, including all headers, must work with dma
 886  * @len: length of buf
 887  * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
 888  * return the cmd status on success.
 889  */
 890 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
 891                                   size_t len, unsigned long valid_rets)
 892 {
 893         struct acx_header *acx = buf;
 894         int ret;
 895 
 896         wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
 897 
 898         if (WARN_ON_ONCE(len < sizeof(*acx)))
 899                 return -EIO;
 900 
 901         acx->id = cpu_to_le16(id);
 902 
 903         /* payload length, does not include any headers */
 904         acx->len = cpu_to_le16(len - sizeof(*acx));
 905 
 906         ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
 907                                        valid_rets);
 908         if (ret < 0) {
 909                 wl1271_warning("CONFIGURE command NOK");
 910                 return ret;
 911         }
 912 
 913         return ret;
 914 }
 915 
 916 /*
 917  * wrapper for wlcore_cmd_configure that accepts only success status.
 918  * return 0 on success
 919  */
 920 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 921 {
 922         int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
 923 
 924         if (ret < 0)
 925                 return ret;
 926         return 0;
 927 }
 928 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
 929 
 930 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 931 {
 932         struct cmd_enabledisable_path *cmd;
 933         int ret;
 934         u16 cmd_rx, cmd_tx;
 935 
 936         wl1271_debug(DEBUG_CMD, "cmd data path");
 937 
 938         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 939         if (!cmd) {
 940                 ret = -ENOMEM;
 941                 goto out;
 942         }
 943 
 944         /* the channel here is only used for calibration, so hardcoded to 1 */
 945         cmd->channel = 1;
 946 
 947         if (enable) {
 948                 cmd_rx = CMD_ENABLE_RX;
 949                 cmd_tx = CMD_ENABLE_TX;
 950         } else {
 951                 cmd_rx = CMD_DISABLE_RX;
 952                 cmd_tx = CMD_DISABLE_TX;
 953         }
 954 
 955         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 956         if (ret < 0) {
 957                 wl1271_error("rx %s cmd for channel %d failed",
 958                              enable ? "start" : "stop", cmd->channel);
 959                 goto out;
 960         }
 961 
 962         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 963                      enable ? "start" : "stop", cmd->channel);
 964 
 965         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 966         if (ret < 0) {
 967                 wl1271_error("tx %s cmd for channel %d failed",
 968                              enable ? "start" : "stop", cmd->channel);
 969                 goto out;
 970         }
 971 
 972         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 973                      enable ? "start" : "stop", cmd->channel);
 974 
 975 out:
 976         kfree(cmd);
 977         return ret;
 978 }
 979 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
 980 
 981 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 982                        u8 ps_mode, u16 auto_ps_timeout)
 983 {
 984         struct wl1271_cmd_ps_params *ps_params = NULL;
 985         int ret = 0;
 986 
 987         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 988 
 989         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 990         if (!ps_params) {
 991                 ret = -ENOMEM;
 992                 goto out;
 993         }
 994 
 995         ps_params->role_id = wlvif->role_id;
 996         ps_params->ps_mode = ps_mode;
 997         ps_params->auto_ps_timeout = auto_ps_timeout;
 998 
 999         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1000                               sizeof(*ps_params), 0);
1001         if (ret < 0) {
1002                 wl1271_error("cmd set_ps_mode failed");
1003                 goto out;
1004         }
1005 
1006 out:
1007         kfree(ps_params);
1008         return ret;
1009 }
1010 
1011 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1012                             u16 template_id, void *buf, size_t buf_len,
1013                             int index, u32 rates)
1014 {
1015         struct wl1271_cmd_template_set *cmd;
1016         int ret = 0;
1017 
1018         wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1019                      template_id, role_id);
1020 
1021         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1022         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1023 
1024         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1025         if (!cmd) {
1026                 ret = -ENOMEM;
1027                 goto out;
1028         }
1029 
1030         /* during initialization wlvif is NULL */
1031         cmd->role_id = role_id;
1032         cmd->len = cpu_to_le16(buf_len);
1033         cmd->template_type = template_id;
1034         cmd->enabled_rates = cpu_to_le32(rates);
1035         cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1036         cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1037         cmd->index = index;
1038 
1039         if (buf)
1040                 memcpy(cmd->template_data, buf, buf_len);
1041 
1042         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1043         if (ret < 0) {
1044                 wl1271_warning("cmd set_template failed: %d", ret);
1045                 goto out_free;
1046         }
1047 
1048 out_free:
1049         kfree(cmd);
1050 
1051 out:
1052         return ret;
1053 }
1054 
1055 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1056 {
1057         struct sk_buff *skb = NULL;
1058         int size;
1059         void *ptr;
1060         int ret = -ENOMEM;
1061 
1062 
1063         if (wlvif->bss_type == BSS_TYPE_IBSS) {
1064                 size = sizeof(struct wl12xx_null_data_template);
1065                 ptr = NULL;
1066         } else {
1067                 skb = ieee80211_nullfunc_get(wl->hw,
1068                                              wl12xx_wlvif_to_vif(wlvif),
1069                                              false);
1070                 if (!skb)
1071                         goto out;
1072                 size = skb->len;
1073                 ptr = skb->data;
1074         }
1075 
1076         ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1077                                       CMD_TEMPL_NULL_DATA, ptr, size, 0,
1078                                       wlvif->basic_rate);
1079 
1080 out:
1081         dev_kfree_skb(skb);
1082         if (ret)
1083                 wl1271_warning("cmd buld null data failed %d", ret);
1084 
1085         return ret;
1086 
1087 }
1088 
1089 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1090                                    struct wl12xx_vif *wlvif)
1091 {
1092         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1093         struct sk_buff *skb = NULL;
1094         int ret = -ENOMEM;
1095 
1096         skb = ieee80211_nullfunc_get(wl->hw, vif, false);
1097         if (!skb)
1098                 goto out;
1099 
1100         ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1101                                       skb->data, skb->len,
1102                                       wlvif->sta.klv_template_id,
1103                                       wlvif->basic_rate);
1104 
1105 out:
1106         dev_kfree_skb(skb);
1107         if (ret)
1108                 wl1271_warning("cmd build klv null data failed %d", ret);
1109 
1110         return ret;
1111 
1112 }
1113 
1114 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1115                              u16 aid)
1116 {
1117         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1118         struct sk_buff *skb;
1119         int ret = 0;
1120 
1121         skb = ieee80211_pspoll_get(wl->hw, vif);
1122         if (!skb)
1123                 goto out;
1124 
1125         ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1126                                       CMD_TEMPL_PS_POLL, skb->data,
1127                                       skb->len, 0, wlvif->basic_rate_set);
1128 
1129 out:
1130         dev_kfree_skb(skb);
1131         return ret;
1132 }
1133 
1134 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1135                                u8 role_id, u8 band,
1136                                const u8 *ssid, size_t ssid_len,
1137                                const u8 *ie0, size_t ie0_len, const u8 *ie1,
1138                                size_t ie1_len, bool sched_scan)
1139 {
1140         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1141         struct sk_buff *skb;
1142         int ret;
1143         u32 rate;
1144         u16 template_id_2_4 = wl->scan_templ_id_2_4;
1145         u16 template_id_5 = wl->scan_templ_id_5;
1146 
1147         wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1148 
1149         skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1150                                      ie0_len + ie1_len);
1151         if (!skb) {
1152                 ret = -ENOMEM;
1153                 goto out;
1154         }
1155         if (ie0_len)
1156                 skb_put_data(skb, ie0, ie0_len);
1157         if (ie1_len)
1158                 skb_put_data(skb, ie1, ie1_len);
1159 
1160         if (sched_scan &&
1161             (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1162                 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1163                 template_id_5 = wl->sched_scan_templ_id_5;
1164         }
1165 
1166         rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1167         if (band == NL80211_BAND_2GHZ)
1168                 ret = wl1271_cmd_template_set(wl, role_id,
1169                                               template_id_2_4,
1170                                               skb->data, skb->len, 0, rate);
1171         else
1172                 ret = wl1271_cmd_template_set(wl, role_id,
1173                                               template_id_5,
1174                                               skb->data, skb->len, 0, rate);
1175 
1176 out:
1177         dev_kfree_skb(skb);
1178         return ret;
1179 }
1180 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1181 
1182 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1183                                               struct wl12xx_vif *wlvif,
1184                                               struct sk_buff *skb)
1185 {
1186         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1187         int ret;
1188         u32 rate;
1189 
1190         if (!skb)
1191                 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1192         if (!skb)
1193                 goto out;
1194 
1195         wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1196 
1197         rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1198         if (wlvif->band == NL80211_BAND_2GHZ)
1199                 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1200                                               CMD_TEMPL_CFG_PROBE_REQ_2_4,
1201                                               skb->data, skb->len, 0, rate);
1202         else
1203                 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1204                                               CMD_TEMPL_CFG_PROBE_REQ_5,
1205                                               skb->data, skb->len, 0, rate);
1206 
1207         if (ret < 0)
1208                 wl1271_error("Unable to set ap probe request template.");
1209 
1210 out:
1211         return skb;
1212 }
1213 
1214 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1215 {
1216         int ret, extra = 0;
1217         u16 fc;
1218         struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1219         struct sk_buff *skb;
1220         struct wl12xx_arp_rsp_template *tmpl;
1221         struct ieee80211_hdr_3addr *hdr;
1222         struct arphdr *arp_hdr;
1223 
1224         skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1225                             WL1271_EXTRA_SPACE_MAX);
1226         if (!skb) {
1227                 wl1271_error("failed to allocate buffer for arp rsp template");
1228                 return -ENOMEM;
1229         }
1230 
1231         skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1232 
1233         tmpl = skb_put_zero(skb, sizeof(*tmpl));
1234 
1235         /* llc layer */
1236         memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1237         tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1238 
1239         /* arp header */
1240         arp_hdr = &tmpl->arp_hdr;
1241         arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1242         arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1243         arp_hdr->ar_hln = ETH_ALEN;
1244         arp_hdr->ar_pln = 4;
1245         arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1246 
1247         /* arp payload */
1248         memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1249         tmpl->sender_ip = wlvif->ip_addr;
1250 
1251         /* encryption space */
1252         switch (wlvif->encryption_type) {
1253         case KEY_TKIP:
1254                 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1255                         extra = WL1271_EXTRA_SPACE_TKIP;
1256                 break;
1257         case KEY_AES:
1258                 extra = WL1271_EXTRA_SPACE_AES;
1259                 break;
1260         case KEY_NONE:
1261         case KEY_WEP:
1262         case KEY_GEM:
1263                 extra = 0;
1264                 break;
1265         default:
1266                 wl1271_warning("Unknown encryption type: %d",
1267                                wlvif->encryption_type);
1268                 ret = -EINVAL;
1269                 goto out;
1270         }
1271 
1272         if (extra) {
1273                 u8 *space = skb_push(skb, extra);
1274                 memset(space, 0, extra);
1275         }
1276 
1277         /* QoS header - BE */
1278         if (wlvif->sta.qos)
1279                 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1280 
1281         /* mac80211 header */
1282         hdr = skb_push(skb, sizeof(*hdr));
1283         memset(hdr, 0, sizeof(*hdr));
1284         fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1285         if (wlvif->sta.qos)
1286                 fc |= IEEE80211_STYPE_QOS_DATA;
1287         else
1288                 fc |= IEEE80211_STYPE_DATA;
1289         if (wlvif->encryption_type != KEY_NONE)
1290                 fc |= IEEE80211_FCTL_PROTECTED;
1291 
1292         hdr->frame_control = cpu_to_le16(fc);
1293         memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1294         memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1295         eth_broadcast_addr(hdr->addr3);
1296 
1297         ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1298                                       skb->data, skb->len, 0,
1299                                       wlvif->basic_rate);
1300 out:
1301         dev_kfree_skb(skb);
1302         return ret;
1303 }
1304 
1305 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1306 {
1307         struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1308         struct ieee80211_qos_hdr template;
1309 
1310         memset(&template, 0, sizeof(template));
1311 
1312         memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1313         memcpy(template.addr2, vif->addr, ETH_ALEN);
1314         memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1315 
1316         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1317                                              IEEE80211_STYPE_QOS_NULLFUNC |
1318                                              IEEE80211_FCTL_TODS);
1319 
1320         /* FIXME: not sure what priority to use here */
1321         template.qos_ctrl = cpu_to_le16(0);
1322 
1323         return wl1271_cmd_template_set(wl, wlvif->role_id,
1324                                        CMD_TEMPL_QOS_NULL_DATA, &template,
1325                                        sizeof(template), 0,
1326                                        wlvif->basic_rate);
1327 }
1328 
1329 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1330 {
1331         struct wl1271_cmd_set_keys *cmd;
1332         int ret = 0;
1333 
1334         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1335 
1336         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1337         if (!cmd) {
1338                 ret = -ENOMEM;
1339                 goto out;
1340         }
1341 
1342         cmd->hlid = hlid;
1343         cmd->key_id = id;
1344         cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1345         cmd->key_action = cpu_to_le16(KEY_SET_ID);
1346         cmd->key_type = KEY_WEP;
1347 
1348         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1349         if (ret < 0) {
1350                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1351                 goto out;
1352         }
1353 
1354 out:
1355         kfree(cmd);
1356 
1357         return ret;
1358 }
1359 
1360 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1361                        u16 action, u8 id, u8 key_type,
1362                        u8 key_size, const u8 *key, const u8 *addr,
1363                        u32 tx_seq_32, u16 tx_seq_16)
1364 {
1365         struct wl1271_cmd_set_keys *cmd;
1366         int ret = 0;
1367 
1368         /* hlid might have already been deleted */
1369         if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1370                 return 0;
1371 
1372         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1373         if (!cmd) {
1374                 ret = -ENOMEM;
1375                 goto out;
1376         }
1377 
1378         cmd->hlid = wlvif->sta.hlid;
1379 
1380         if (key_type == KEY_WEP)
1381                 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1382         else if (is_broadcast_ether_addr(addr))
1383                 cmd->lid_key_type = BROADCAST_LID_TYPE;
1384         else
1385                 cmd->lid_key_type = UNICAST_LID_TYPE;
1386 
1387         cmd->key_action = cpu_to_le16(action);
1388         cmd->key_size = key_size;
1389         cmd->key_type = key_type;
1390 
1391         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1392         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1393 
1394         cmd->key_id = id;
1395 
1396         if (key_type == KEY_TKIP) {
1397                 /*
1398                  * We get the key in the following form:
1399                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1400                  * but the target is expecting:
1401                  * TKIP - RX MIC - TX MIC
1402                  */
1403                 memcpy(cmd->key, key, 16);
1404                 memcpy(cmd->key + 16, key + 24, 8);
1405                 memcpy(cmd->key + 24, key + 16, 8);
1406 
1407         } else {
1408                 memcpy(cmd->key, key, key_size);
1409         }
1410 
1411         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1412 
1413         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1414         if (ret < 0) {
1415                 wl1271_warning("could not set keys");
1416                 goto out;
1417         }
1418 
1419 out:
1420         kfree(cmd);
1421 
1422         return ret;
1423 }
1424 
1425 /*
1426  * TODO: merge with sta/ibss into 1 set_key function.
1427  * note there are slight diffs
1428  */
1429 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1430                           u16 action, u8 id, u8 key_type,
1431                           u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1432                           u16 tx_seq_16)
1433 {
1434         struct wl1271_cmd_set_keys *cmd;
1435         int ret = 0;
1436         u8 lid_type;
1437 
1438         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1439         if (!cmd)
1440                 return -ENOMEM;
1441 
1442         if (hlid == wlvif->ap.bcast_hlid) {
1443                 if (key_type == KEY_WEP)
1444                         lid_type = WEP_DEFAULT_LID_TYPE;
1445                 else
1446                         lid_type = BROADCAST_LID_TYPE;
1447         } else {
1448                 lid_type = UNICAST_LID_TYPE;
1449         }
1450 
1451         wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1452                      " hlid: %d", (int)action, (int)id, (int)lid_type,
1453                      (int)key_type, (int)hlid);
1454 
1455         cmd->lid_key_type = lid_type;
1456         cmd->hlid = hlid;
1457         cmd->key_action = cpu_to_le16(action);
1458         cmd->key_size = key_size;
1459         cmd->key_type = key_type;
1460         cmd->key_id = id;
1461         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1462         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1463 
1464         if (key_type == KEY_TKIP) {
1465                 /*
1466                  * We get the key in the following form:
1467                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1468                  * but the target is expecting:
1469                  * TKIP - RX MIC - TX MIC
1470                  */
1471                 memcpy(cmd->key, key, 16);
1472                 memcpy(cmd->key + 16, key + 24, 8);
1473                 memcpy(cmd->key + 24, key + 16, 8);
1474         } else {
1475                 memcpy(cmd->key, key, key_size);
1476         }
1477 
1478         wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1479 
1480         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1481         if (ret < 0) {
1482                 wl1271_warning("could not set ap keys");
1483                 goto out;
1484         }
1485 
1486 out:
1487         kfree(cmd);
1488         return ret;
1489 }
1490 
1491 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1492                               u8 hlid)
1493 {
1494         struct wl12xx_cmd_set_peer_state *cmd;
1495         int ret = 0;
1496 
1497         wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1498 
1499         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1500         if (!cmd) {
1501                 ret = -ENOMEM;
1502                 goto out;
1503         }
1504 
1505         cmd->hlid = hlid;
1506         cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1507 
1508         /* wmm param is valid only for station role */
1509         if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1510                 cmd->wmm = wlvif->wmm_enabled;
1511 
1512         ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1513         if (ret < 0) {
1514                 wl1271_error("failed to send set peer state command");
1515                 goto out_free;
1516         }
1517 
1518 out_free:
1519         kfree(cmd);
1520 
1521 out:
1522         return ret;
1523 }
1524 
1525 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1526                         struct ieee80211_sta *sta, u8 hlid)
1527 {
1528         struct wl12xx_cmd_add_peer *cmd;
1529         int i, ret;
1530         u32 sta_rates;
1531 
1532         wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1533 
1534         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1535         if (!cmd) {
1536                 ret = -ENOMEM;
1537                 goto out;
1538         }
1539 
1540         memcpy(cmd->addr, sta->addr, ETH_ALEN);
1541         cmd->bss_index = WL1271_AP_BSS_INDEX;
1542         cmd->aid = sta->aid;
1543         cmd->hlid = hlid;
1544         cmd->sp_len = sta->max_sp;
1545         cmd->wmm = sta->wme ? 1 : 0;
1546         cmd->session_id = wl->session_ids[hlid];
1547         cmd->role_id = wlvif->role_id;
1548 
1549         for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1550                 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1551                         cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1552                                         WL1271_PSD_UPSD_TRIGGER;
1553                 else
1554                         cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1555                                         WL1271_PSD_LEGACY;
1556 
1557 
1558         sta_rates = sta->supp_rates[wlvif->band];
1559         if (sta->ht_cap.ht_supported)
1560                 sta_rates |=
1561                         (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1562                         (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1563 
1564         cmd->supported_rates =
1565                 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1566                                                         wlvif->band));
1567 
1568         if (!cmd->supported_rates) {
1569                 wl1271_debug(DEBUG_CMD,
1570                              "peer has no supported rates yet, configuring basic rates: 0x%x",
1571                              wlvif->basic_rate_set);
1572                 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set);
1573         }
1574 
1575         wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1576                      cmd->supported_rates, sta->uapsd_queues);
1577 
1578         ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1579         if (ret < 0) {
1580                 wl1271_error("failed to initiate cmd add peer");
1581                 goto out_free;
1582         }
1583 
1584 out_free:
1585         kfree(cmd);
1586 
1587 out:
1588         return ret;
1589 }
1590 
1591 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1592                            u8 hlid)
1593 {
1594         struct wl12xx_cmd_remove_peer *cmd;
1595         int ret;
1596         bool timeout = false;
1597 
1598         wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1599 
1600         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1601         if (!cmd) {
1602                 ret = -ENOMEM;
1603                 goto out;
1604         }
1605 
1606         cmd->hlid = hlid;
1607         /* We never send a deauth, mac80211 is in charge of this */
1608         cmd->reason_opcode = 0;
1609         cmd->send_deauth_flag = 0;
1610         cmd->role_id = wlvif->role_id;
1611 
1612         ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1613         if (ret < 0) {
1614                 wl1271_error("failed to initiate cmd remove peer");
1615                 goto out_free;
1616         }
1617 
1618         ret = wl->ops->wait_for_event(wl,
1619                                       WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1620                                       &timeout);
1621 
1622         /*
1623          * We are ok with a timeout here. The event is sometimes not sent
1624          * due to a firmware bug. In case of another error (like SDIO timeout)
1625          * queue a recovery.
1626          */
1627         if (ret)
1628                 wl12xx_queue_recovery_work(wl);
1629 
1630 out_free:
1631         kfree(cmd);
1632 
1633 out:
1634         return ret;
1635 }
1636 
1637 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1638 {
1639         /*
1640          * map the given band/channel to the respective predefined
1641          * bit expected by the fw
1642          */
1643         switch (band) {
1644         case NL80211_BAND_2GHZ:
1645                 /* channels 1..14 are mapped to 0..13 */
1646                 if (ch >= 1 && ch <= 14)
1647                         return ch - 1;
1648                 break;
1649         case NL80211_BAND_5GHZ:
1650                 switch (ch) {
1651                 case 8 ... 16:
1652                         /* channels 8,12,16 are mapped to 18,19,20 */
1653                         return 18 + (ch-8)/4;
1654                 case 34 ... 48:
1655                         /* channels 34,36..48 are mapped to 21..28 */
1656                         return 21 + (ch-34)/2;
1657                 case 52 ... 64:
1658                         /* channels 52,56..64 are mapped to 29..32 */
1659                         return 29 + (ch-52)/4;
1660                 case 100 ... 140:
1661                         /* channels 100,104..140 are mapped to 33..43 */
1662                         return 33 + (ch-100)/4;
1663                 case 149 ... 165:
1664                         /* channels 149,153..165 are mapped to 44..48 */
1665                         return 44 + (ch-149)/4;
1666                 default:
1667                         break;
1668                 }
1669                 break;
1670         default:
1671                 break;
1672         }
1673 
1674         wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1675         return -1;
1676 }
1677 
1678 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1679                                      enum nl80211_band band)
1680 {
1681         int ch_bit_idx = 0;
1682 
1683         if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1684                 return;
1685 
1686         ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1687 
1688         if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1689                 __set_bit_le(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1690 }
1691 
1692 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1693 {
1694         struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1695         int ret = 0, i, b, ch_bit_idx;
1696         __le32 tmp_ch_bitmap[2] __aligned(sizeof(unsigned long));
1697         struct wiphy *wiphy = wl->hw->wiphy;
1698         struct ieee80211_supported_band *band;
1699         bool timeout = false;
1700 
1701         if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1702                 return 0;
1703 
1704         wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1705 
1706         memcpy(tmp_ch_bitmap, wl->reg_ch_conf_pending, sizeof(tmp_ch_bitmap));
1707 
1708         for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) {
1709                 band = wiphy->bands[b];
1710                 for (i = 0; i < band->n_channels; i++) {
1711                         struct ieee80211_channel *channel = &band->channels[i];
1712                         u16 ch = channel->hw_value;
1713                         u32 flags = channel->flags;
1714 
1715                         if (flags & (IEEE80211_CHAN_DISABLED |
1716                                      IEEE80211_CHAN_NO_IR))
1717                                 continue;
1718 
1719                         if ((flags & IEEE80211_CHAN_RADAR) &&
1720                             channel->dfs_state != NL80211_DFS_AVAILABLE)
1721                                 continue;
1722 
1723                         ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1724                         if (ch_bit_idx < 0)
1725                                 continue;
1726 
1727                         __set_bit_le(ch_bit_idx, (long *)tmp_ch_bitmap);
1728                 }
1729         }
1730 
1731         if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1732                 goto out;
1733 
1734         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1735         if (!cmd) {
1736                 ret = -ENOMEM;
1737                 goto out;
1738         }
1739 
1740         cmd->ch_bit_map1 = tmp_ch_bitmap[0];
1741         cmd->ch_bit_map2 = tmp_ch_bitmap[1];
1742         cmd->dfs_region = wl->dfs_region;
1743 
1744         wl1271_debug(DEBUG_CMD,
1745                      "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1746                      cmd->ch_bit_map1, cmd->ch_bit_map2);
1747 
1748         ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1749         if (ret < 0) {
1750                 wl1271_error("failed to send reg domain dfs config");
1751                 goto out;
1752         }
1753 
1754         ret = wl->ops->wait_for_event(wl,
1755                                       WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1756                                       &timeout);
1757         if (ret < 0 || timeout) {
1758                 wl1271_error("reg domain conf %serror",
1759                              timeout ? "completion " : "");
1760                 ret = timeout ? -ETIMEDOUT : ret;
1761                 goto out;
1762         }
1763 
1764         memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1765         memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1766 
1767 out:
1768         kfree(cmd);
1769         return ret;
1770 }
1771 
1772 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1773 {
1774         struct wl12xx_cmd_config_fwlog *cmd;
1775         int ret = 0;
1776 
1777         wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1778 
1779         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1780         if (!cmd) {
1781                 ret = -ENOMEM;
1782                 goto out;
1783         }
1784 
1785         cmd->logger_mode = wl->conf.fwlog.mode;
1786         cmd->log_severity = wl->conf.fwlog.severity;
1787         cmd->timestamp = wl->conf.fwlog.timestamp;
1788         cmd->output = wl->conf.fwlog.output;
1789         cmd->threshold = wl->conf.fwlog.threshold;
1790 
1791         ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1792         if (ret < 0) {
1793                 wl1271_error("failed to send config firmware logger command");
1794                 goto out_free;
1795         }
1796 
1797 out_free:
1798         kfree(cmd);
1799 
1800 out:
1801         return ret;
1802 }
1803 
1804 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1805 {
1806         struct wl12xx_cmd_start_fwlog *cmd;
1807         int ret = 0;
1808 
1809         wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1810 
1811         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1812         if (!cmd) {
1813                 ret = -ENOMEM;
1814                 goto out;
1815         }
1816 
1817         ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1818         if (ret < 0) {
1819                 wl1271_error("failed to send start firmware logger command");
1820                 goto out_free;
1821         }
1822 
1823 out_free:
1824         kfree(cmd);
1825 
1826 out:
1827         return ret;
1828 }
1829 
1830 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1831 {
1832         struct wl12xx_cmd_stop_fwlog *cmd;
1833         int ret = 0;
1834 
1835         wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1836 
1837         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1838         if (!cmd) {
1839                 ret = -ENOMEM;
1840                 goto out;
1841         }
1842 
1843         ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1844         if (ret < 0) {
1845                 wl1271_error("failed to send stop firmware logger command");
1846                 goto out_free;
1847         }
1848 
1849 out_free:
1850         kfree(cmd);
1851 
1852 out:
1853         return ret;
1854 }
1855 
1856 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1857                           u8 role_id, enum nl80211_band band, u8 channel)
1858 {
1859         struct wl12xx_cmd_roc *cmd;
1860         int ret = 0;
1861 
1862         wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1863 
1864         if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1865                 return -EINVAL;
1866 
1867         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1868         if (!cmd) {
1869                 ret = -ENOMEM;
1870                 goto out;
1871         }
1872 
1873         cmd->role_id = role_id;
1874         cmd->channel = channel;
1875         switch (band) {
1876         case NL80211_BAND_2GHZ:
1877                 cmd->band = WLCORE_BAND_2_4GHZ;
1878                 break;
1879         case NL80211_BAND_5GHZ:
1880                 cmd->band = WLCORE_BAND_5GHZ;
1881                 break;
1882         default:
1883                 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1884                 ret = -EINVAL;
1885                 goto out_free;
1886         }
1887 
1888 
1889         ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1890         if (ret < 0) {
1891                 wl1271_error("failed to send ROC command");
1892                 goto out_free;
1893         }
1894 
1895 out_free:
1896         kfree(cmd);
1897 
1898 out:
1899         return ret;
1900 }
1901 
1902 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1903 {
1904         struct wl12xx_cmd_croc *cmd;
1905         int ret = 0;
1906 
1907         wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1908 
1909         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1910         if (!cmd) {
1911                 ret = -ENOMEM;
1912                 goto out;
1913         }
1914         cmd->role_id = role_id;
1915 
1916         ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1917                               sizeof(*cmd), 0);
1918         if (ret < 0) {
1919                 wl1271_error("failed to send ROC command");
1920                 goto out_free;
1921         }
1922 
1923 out_free:
1924         kfree(cmd);
1925 
1926 out:
1927         return ret;
1928 }
1929 
1930 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1931                enum nl80211_band band, u8 channel)
1932 {
1933         int ret = 0;
1934 
1935         if (WARN_ON(test_bit(role_id, wl->roc_map)))
1936                 return 0;
1937 
1938         ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1939         if (ret < 0)
1940                 goto out;
1941 
1942         __set_bit(role_id, wl->roc_map);
1943 out:
1944         return ret;
1945 }
1946 
1947 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1948 {
1949         int ret = 0;
1950 
1951         if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1952                 return 0;
1953 
1954         ret = wl12xx_cmd_croc(wl, role_id);
1955         if (ret < 0)
1956                 goto out;
1957 
1958         __clear_bit(role_id, wl->roc_map);
1959 
1960         /*
1961          * Rearm the tx watchdog when removing the last ROC. This prevents
1962          * recoveries due to just finished ROCs - when Tx hasn't yet had
1963          * a chance to get out.
1964          */
1965         if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1966                 wl12xx_rearm_tx_watchdog_locked(wl);
1967 out:
1968         return ret;
1969 }
1970 
1971 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1972 {
1973         struct wl12xx_cmd_stop_channel_switch *cmd;
1974         int ret;
1975 
1976         wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1977 
1978         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1979         if (!cmd) {
1980                 ret = -ENOMEM;
1981                 goto out;
1982         }
1983 
1984         cmd->role_id = wlvif->role_id;
1985 
1986         ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1987         if (ret < 0) {
1988                 wl1271_error("failed to stop channel switch command");
1989                 goto out_free;
1990         }
1991 
1992 out_free:
1993         kfree(cmd);
1994 
1995 out:
1996         return ret;
1997 }
1998 
1999 /* start dev role and roc on its channel */
2000 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2001                      enum nl80211_band band, int channel)
2002 {
2003         int ret;
2004 
2005         if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2006                       wlvif->bss_type == BSS_TYPE_IBSS)))
2007                 return -EINVAL;
2008 
2009         /* the dev role is already started for p2p mgmt interfaces */
2010         if (!wlcore_is_p2p_mgmt(wlvif)) {
2011                 ret = wl12xx_cmd_role_enable(wl,
2012                                              wl12xx_wlvif_to_vif(wlvif)->addr,
2013                                              WL1271_ROLE_DEVICE,
2014                                              &wlvif->dev_role_id);
2015                 if (ret < 0)
2016                         goto out;
2017         }
2018 
2019         ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2020         if (ret < 0)
2021                 goto out_disable;
2022 
2023         ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2024         if (ret < 0)
2025                 goto out_stop;
2026 
2027         return 0;
2028 
2029 out_stop:
2030         wl12xx_cmd_role_stop_dev(wl, wlvif);
2031 out_disable:
2032         if (!wlcore_is_p2p_mgmt(wlvif))
2033                 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2034 out:
2035         return ret;
2036 }
2037 
2038 /* croc dev hlid, and stop the role */
2039 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2040 {
2041         int ret;
2042 
2043         if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2044                       wlvif->bss_type == BSS_TYPE_IBSS)))
2045                 return -EINVAL;
2046 
2047         /* flush all pending packets */
2048         ret = wlcore_tx_work_locked(wl);
2049         if (ret < 0)
2050                 goto out;
2051 
2052         if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2053                 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2054                 if (ret < 0)
2055                         goto out;
2056         }
2057 
2058         ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2059         if (ret < 0)
2060                 goto out;
2061 
2062         if (!wlcore_is_p2p_mgmt(wlvif)) {
2063                 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2064                 if (ret < 0)
2065                         goto out;
2066         }
2067 
2068 out:
2069         return ret;
2070 }
2071 
2072 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2073                            u8 feature, u8 enable, u8 value)
2074 {
2075         struct wlcore_cmd_generic_cfg *cmd;
2076         int ret;
2077 
2078         wl1271_debug(DEBUG_CMD,
2079                      "cmd generic cfg (role %d feature %d enable %d value %d)",
2080                      wlvif->role_id, feature, enable, value);
2081 
2082         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2083         if (!cmd)
2084                 return -ENOMEM;
2085 
2086         cmd->role_id = wlvif->role_id;
2087         cmd->feature = feature;
2088         cmd->enable = enable;
2089         cmd->value = value;
2090 
2091         ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0);
2092         if (ret < 0) {
2093                 wl1271_error("failed to send generic cfg command");
2094                 goto out_free;
2095         }
2096 out_free:
2097         kfree(cmd);
2098         return ret;
2099 }
2100 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/wireless/ti/wlcore/cmd.c

DEFINITIONS
