mac80211: update brcmfmac including missing boardrev workaround
[openwrt.git] / package / kernel / mac80211 / patches / 522-mac80211_configure_antenna_gain.patch
1 --- a/include/net/cfg80211.h
2 +++ b/include/net/cfg80211.h
3 @@ -2363,6 +2363,7 @@ struct cfg80211_qos_map {
4   *     (as advertised by the nl80211 feature flag.)
5   * @get_tx_power: store the current TX power into the dbm variable;
6   *     return 0 if successful
7 + * @set_antenna_gain: set antenna gain to reduce maximum tx power if necessary
8   *
9   * @set_wds_peer: set the WDS peer for a WDS interface
10   *
11 @@ -2624,6 +2625,7 @@ struct cfg80211_ops {
12                                 enum nl80211_tx_power_setting type, int mbm);
13         int     (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
14                                 int *dbm);
15 +       int     (*set_antenna_gain)(struct wiphy *wiphy, int dbi);
16  
17         int     (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
18                                 const u8 *addr);
19 --- a/include/net/mac80211.h
20 +++ b/include/net/mac80211.h
21 @@ -1286,6 +1286,7 @@ enum ieee80211_smps_mode {
22   *
23   * @power_level: requested transmit power (in dBm), backward compatibility
24   *     value only that is set to the minimum of all interfaces
25 + * @max_antenna_gain: maximum antenna gain adjusted by user config (in dBi)
26   *
27   * @chandef: the channel definition to tune to
28   * @radar_enabled: whether radar detection is enabled
29 @@ -1306,6 +1307,7 @@ enum ieee80211_smps_mode {
30  struct ieee80211_conf {
31         u32 flags;
32         int power_level, dynamic_ps_timeout;
33 +       int max_antenna_gain;
34  
35         u16 listen_interval;
36         u8 ps_dtim_period;
37 --- a/include/uapi/linux/nl80211.h
38 +++ b/include/uapi/linux/nl80211.h
39 @@ -1790,6 +1790,9 @@ enum nl80211_commands {
40   *     between scans. The scan plans are executed sequentially.
41   *     Each scan plan is a nested attribute of &enum nl80211_sched_scan_plan.
42   *
43 + * @NL80211_ATTR_WIPHY_ANTENNA_GAIN: Configured antenna gain. Used to reduce
44 + *     transmit power to stay within regulatory limits. u32, dBi.
45 + *
46   * @NUM_NL80211_ATTR: total number of nl80211_attrs available
47   * @NL80211_ATTR_MAX: highest attribute number currently defined
48   * @__NL80211_ATTR_AFTER_LAST: internal use
49 @@ -2164,6 +2167,8 @@ enum nl80211_attrs {
50         NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
51         NL80211_ATTR_SCHED_SCAN_PLANS,
52  
53 +       NL80211_ATTR_WIPHY_ANTENNA_GAIN,
54 +
55         /* add attributes here, update the policy in nl80211.c */
56  
57         __NL80211_ATTR_AFTER_LAST,
58 --- a/net/mac80211/cfg.c
59 +++ b/net/mac80211/cfg.c
60 @@ -2229,6 +2229,19 @@ static int ieee80211_get_tx_power(struct
61         return 0;
62  }
63  
64 +static int ieee80211_set_antenna_gain(struct wiphy *wiphy, int dbi)
65 +{
66 +       struct ieee80211_local *local = wiphy_priv(wiphy);
67 +
68 +       if (dbi < 0)
69 +               return -EINVAL;
70 +
71 +       local->user_antenna_gain = dbi;
72 +       ieee80211_hw_config(local, 0);
73 +
74 +       return 0;
75 +}
76 +
77  static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
78                                   const u8 *addr)
79  {
80 @@ -3403,6 +3416,7 @@ const struct cfg80211_ops mac80211_confi
81         .set_wiphy_params = ieee80211_set_wiphy_params,
82         .set_tx_power = ieee80211_set_tx_power,
83         .get_tx_power = ieee80211_get_tx_power,
84 +       .set_antenna_gain = ieee80211_set_antenna_gain,
85         .set_wds_peer = ieee80211_set_wds_peer,
86         .rfkill_poll = ieee80211_rfkill_poll,
87         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
88 --- a/net/mac80211/ieee80211_i.h
89 +++ b/net/mac80211/ieee80211_i.h
90 @@ -1318,6 +1318,7 @@ struct ieee80211_local {
91         int dynamic_ps_forced_timeout;
92  
93         int user_power_level; /* in dBm, for all interfaces */
94 +       int user_antenna_gain; /* in dBi */
95  
96         enum ieee80211_smps_mode smps_mode;
97  
98 --- a/net/mac80211/main.c
99 +++ b/net/mac80211/main.c
100 @@ -93,7 +93,7 @@ static u32 ieee80211_hw_conf_chan(struct
101         struct ieee80211_sub_if_data *sdata;
102         struct cfg80211_chan_def chandef = {};
103         u32 changed = 0;
104 -       int power;
105 +       int power, max_power;
106         u32 offchannel_flag;
107  
108         offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
109 @@ -150,6 +150,12 @@ static u32 ieee80211_hw_conf_chan(struct
110         }
111         rcu_read_unlock();
112  
113 +       max_power = chandef.chan->max_reg_power;
114 +       if (local->user_antenna_gain > 0) {
115 +               max_power -= local->user_antenna_gain;
116 +               power = min(power, max_power);
117 +       }
118 +
119         if (local->hw.conf.power_level != power) {
120                 changed |= IEEE80211_CONF_CHANGE_POWER;
121                 local->hw.conf.power_level = power;
122 @@ -586,6 +592,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_
123                                          IEEE80211_RADIOTAP_MCS_HAVE_BW;
124         local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI |
125                                          IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH;
126 +       local->user_antenna_gain = 0;
127         local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
128         local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
129         local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
130 --- a/net/wireless/nl80211.c
131 +++ b/net/wireless/nl80211.c
132 @@ -403,6 +403,7 @@ static const struct nla_policy nl80211_p
133         [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
134         [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
135         [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
136 +       [NL80211_ATTR_WIPHY_ANTENNA_GAIN] = { .type = NLA_U32 },
137  };
138  
139  /* policy for the key attributes */
140 @@ -2220,6 +2221,20 @@ static int nl80211_set_wiphy(struct sk_b
141                 if (result)
142                         return result;
143         }
144 +
145 +       if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_GAIN]) {
146 +               int idx, dbi = 0;
147 +
148 +               if (!rdev->ops->set_antenna_gain)
149 +                       return -EOPNOTSUPP;
150 +
151 +               idx = NL80211_ATTR_WIPHY_ANTENNA_GAIN;
152 +               dbi = nla_get_u32(info->attrs[idx]);
153 +
154 +               result = rdev->ops->set_antenna_gain(&rdev->wiphy, dbi);
155 +               if (result)
156 +                       return result;
157 +       }
158  
159         if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
160             info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {