net/mac80211/driver-ops.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License version 2 as
   4  * published by the Free Software Foundation.
   5  */
   6 #include <net/mac80211.h>
   7 #include "ieee80211_i.h"
   8 #include "trace.h"
   9 #include "driver-ops.h"
  10
  11 __must_check
  12 int drv_sta_state(struct ieee80211_local *local,
  13                   struct ieee80211_sub_if_data *sdata,
  14                   struct sta_info *sta,
  15                   enum ieee80211_sta_state old_state,
  16                   enum ieee80211_sta_state new_state)
  17 {
  18         int ret = 0;
  19
  20         might_sleep();
  21
  22         sdata = get_bss_sdata(sdata);
  23         if (!check_sdata_in_driver(sdata))
  24                 return -EIO;
  25
  26         trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
  27         if (local->ops->sta_state) {
  28                 ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
  29                                             old_state, new_state);
  30         } else if (old_state == IEEE80211_STA_AUTH &&
  31                    new_state == IEEE80211_STA_ASSOC) {
  32                 ret = drv_sta_add(local, sdata, &sta->sta);
  33                 if (ret == 0)
  34                         sta->uploaded = true;
  35         } else if (old_state == IEEE80211_STA_ASSOC &&
  36                    new_state == IEEE80211_STA_AUTH) {
  37                 drv_sta_remove(local, sdata, &sta->sta);
  38         }
  39         trace_drv_return_int(local, ret);
  40         return ret;
  41 }
  42
  43 int drv_conf_tx(struct ieee80211_local *local,
  44                 struct ieee80211_sub_if_data *sdata, u16 ac,
  45                 const struct ieee80211_tx_queue_params *params)
  46 {
  47         int ret = -EOPNOTSUPP;
  48
  49         might_sleep();
  50
  51         if (!check_sdata_in_driver(sdata))
  52                 return -EIO;
  53
  54         if (WARN_ONCE(params->cw_min == 0 ||
  55                       params->cw_min > params->cw_max,
  56                       "%s: invalid CW_min/CW_max: %d/%d\n",
  57                       sdata->name, params->cw_min, params->cw_max))
  58                 return -EINVAL;
  59
  60         trace_drv_conf_tx(local, sdata, ac, params);
  61         if (local->ops->conf_tx)
  62                 ret = local->ops->conf_tx(&local->hw, &sdata->vif,
  63                                           ac, params);
  64         trace_drv_return_int(local, ret);
  65         return ret;
  66 }