drivers/net/wireless/quantenna/qtnfmac/qlink_util.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
   3
   4 #include <linux/nl80211.h>
   5
   6 #include "qlink_util.h"
   7
   8 u16 qlink_iface_type_to_nl_mask(u16 qlink_type)
   9 {
  10         u16 result = 0;
  11
  12         switch (qlink_type) {
  13         case QLINK_IFTYPE_AP:
  14                 result |= BIT(NL80211_IFTYPE_AP);
  15                 break;
  16         case QLINK_IFTYPE_STATION:
  17                 result |= BIT(NL80211_IFTYPE_STATION);
  18                 break;
  19         case QLINK_IFTYPE_ADHOC:
  20                 result |= BIT(NL80211_IFTYPE_ADHOC);
  21                 break;
  22         case QLINK_IFTYPE_MONITOR:
  23                 result |= BIT(NL80211_IFTYPE_MONITOR);
  24                 break;
  25         case QLINK_IFTYPE_WDS:
  26                 result |= BIT(NL80211_IFTYPE_WDS);
  27                 break;
  28         case QLINK_IFTYPE_AP_VLAN:
  29                 result |= BIT(NL80211_IFTYPE_AP_VLAN);
  30                 break;
  31         }
  32
  33         return result;
  34 }
  35
  36 u8 qlink_chan_width_mask_to_nl(u16 qlink_mask)
  37 {
  38         u8 result = 0;
  39
  40         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_5))
  41                 result |= BIT(NL80211_CHAN_WIDTH_5);
  42
  43         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_10))
  44                 result |= BIT(NL80211_CHAN_WIDTH_10);
  45
  46         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20_NOHT))
  47                 result |= BIT(NL80211_CHAN_WIDTH_20_NOHT);
  48
  49         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20))
  50                 result |= BIT(NL80211_CHAN_WIDTH_20);
  51
  52         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_40))
  53                 result |= BIT(NL80211_CHAN_WIDTH_40);
  54
  55         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80))
  56                 result |= BIT(NL80211_CHAN_WIDTH_80);
  57
  58         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80P80))
  59                 result |= BIT(NL80211_CHAN_WIDTH_80P80);
  60
  61         if (qlink_mask & BIT(QLINK_CHAN_WIDTH_160))
  62                 result |= BIT(NL80211_CHAN_WIDTH_160);
  63
  64         return result;
  65 }
  66
  67 static enum nl80211_chan_width qlink_chanwidth_to_nl(u8 qlw)
  68 {
  69         switch (qlw) {
  70         case QLINK_CHAN_WIDTH_20_NOHT:
  71                 return NL80211_CHAN_WIDTH_20_NOHT;
  72         case QLINK_CHAN_WIDTH_20:
  73                 return NL80211_CHAN_WIDTH_20;
  74         case QLINK_CHAN_WIDTH_40:
  75                 return NL80211_CHAN_WIDTH_40;
  76         case QLINK_CHAN_WIDTH_80:
  77                 return NL80211_CHAN_WIDTH_80;
  78         case QLINK_CHAN_WIDTH_80P80:
  79                 return NL80211_CHAN_WIDTH_80P80;
  80         case QLINK_CHAN_WIDTH_160:
  81                 return NL80211_CHAN_WIDTH_160;
  82         case QLINK_CHAN_WIDTH_5:
  83                 return NL80211_CHAN_WIDTH_5;
  84         case QLINK_CHAN_WIDTH_10:
  85                 return NL80211_CHAN_WIDTH_10;
  86         default:
  87                 return -1;
  88         }
  89 }
  90
  91 static u8 qlink_chanwidth_nl_to_qlink(enum nl80211_chan_width nlwidth)
  92 {
  93         switch (nlwidth) {
  94         case NL80211_CHAN_WIDTH_20_NOHT:
  95                 return QLINK_CHAN_WIDTH_20_NOHT;
  96         case NL80211_CHAN_WIDTH_20:
  97                 return QLINK_CHAN_WIDTH_20;
  98         case NL80211_CHAN_WIDTH_40:
  99                 return QLINK_CHAN_WIDTH_40;
 100         case NL80211_CHAN_WIDTH_80:
 101                 return QLINK_CHAN_WIDTH_80;
 102         case NL80211_CHAN_WIDTH_80P80:
 103                 return QLINK_CHAN_WIDTH_80P80;
 104         case NL80211_CHAN_WIDTH_160:
 105                 return QLINK_CHAN_WIDTH_160;
 106         case NL80211_CHAN_WIDTH_5:
 107                 return QLINK_CHAN_WIDTH_5;
 108         case NL80211_CHAN_WIDTH_10:
 109                 return QLINK_CHAN_WIDTH_10;
 110         default:
 111                 return -1;
 112         }
 113 }
 114
 115 void qlink_chandef_q2cfg(struct wiphy *wiphy,
 116                          const struct qlink_chandef *qch,
 117                          struct cfg80211_chan_def *chdef)
 118 {
 119         struct ieee80211_channel *chan;
 120
 121         chan = ieee80211_get_channel(wiphy, le16_to_cpu(qch->chan.center_freq));
 122
 123         chdef->chan = chan;
 124         chdef->center_freq1 = le16_to_cpu(qch->center_freq1);
 125         chdef->center_freq2 = le16_to_cpu(qch->center_freq2);
 126         chdef->width = qlink_chanwidth_to_nl(qch->width);
 127 }
 128
 129 void qlink_chandef_cfg2q(const struct cfg80211_chan_def *chdef,
 130                          struct qlink_chandef *qch)
 131 {
 132         struct ieee80211_channel *chan = chdef->chan;
 133
 134         qch->chan.hw_value = cpu_to_le16(chan->hw_value);
 135         qch->chan.center_freq = cpu_to_le16(chan->center_freq);
 136         qch->chan.flags = cpu_to_le32(chan->flags);
 137
 138         qch->center_freq1 = cpu_to_le16(chdef->center_freq1);
 139         qch->center_freq2 = cpu_to_le16(chdef->center_freq2);
 140         qch->width = qlink_chanwidth_nl_to_qlink(chdef->width);
 141 }
 142
 143 enum qlink_hidden_ssid qlink_hidden_ssid_nl2q(enum nl80211_hidden_ssid nl_val)
 144 {
 145         switch (nl_val) {
 146         case NL80211_HIDDEN_SSID_ZERO_LEN:
 147                 return QLINK_HIDDEN_SSID_ZERO_LEN;
 148         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
 149                 return QLINK_HIDDEN_SSID_ZERO_CONTENTS;
 150         case NL80211_HIDDEN_SSID_NOT_IN_USE:
 151         default:
 152                 return QLINK_HIDDEN_SSID_NOT_IN_USE;
 153         }
 154 }
 155
 156 bool qtnf_utils_is_bit_set(const u8 *arr, unsigned int bit,
 157                            unsigned int arr_max_len)
 158 {
 159         unsigned int idx = bit / BITS_PER_BYTE;
 160         u8 mask = 1 << (bit - (idx * BITS_PER_BYTE));
 161
 162         if (idx >= arr_max_len)
 163                 return false;
 164
 165         return arr[idx] & mask;
 166 }
 167
 168 void qlink_acl_data_cfg2q(const struct cfg80211_acl_data *acl,
 169                           struct qlink_acl_data *qacl)
 170 {
 171         switch (acl->acl_policy) {
 172         case NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED:
 173                 qacl->policy =
 174                         cpu_to_le32(QLINK_ACL_POLICY_ACCEPT_UNLESS_LISTED);
 175                 break;
 176         case NL80211_ACL_POLICY_DENY_UNLESS_LISTED:
 177                 qacl->policy = cpu_to_le32(QLINK_ACL_POLICY_DENY_UNLESS_LISTED);
 178                 break;
 179         }
 180
 181         qacl->num_entries = cpu_to_le32(acl->n_acl_entries);
 182         memcpy(qacl->mac_addrs, acl->mac_addrs,
 183                acl->n_acl_entries * sizeof(*qacl->mac_addrs));
 184 }
 185
 186 enum qlink_band qlink_utils_band_cfg2q(enum nl80211_band band)
 187 {
 188         switch (band) {
 189         case NL80211_BAND_2GHZ:
 190                 return QLINK_BAND_2GHZ;
 191         case NL80211_BAND_5GHZ:
 192                 return QLINK_BAND_5GHZ;
 193         case NL80211_BAND_60GHZ:
 194                 return QLINK_BAND_60GHZ;
 195         default:
 196                 return -EINVAL;
 197         }
 198 }
 199
 200 enum qlink_dfs_state qlink_utils_dfs_state_cfg2q(enum nl80211_dfs_state state)
 201 {
 202         switch (state) {
 203         case NL80211_DFS_USABLE:
 204                 return QLINK_DFS_USABLE;
 205         case NL80211_DFS_AVAILABLE:
 206                 return QLINK_DFS_AVAILABLE;
 207         case NL80211_DFS_UNAVAILABLE:
 208         default:
 209                 return QLINK_DFS_UNAVAILABLE;
 210         }
 211 }
 212
 213 u32 qlink_utils_chflags_cfg2q(u32 cfgflags)
 214 {
 215         u32 flags = 0;
 216
 217         if (cfgflags & IEEE80211_CHAN_DISABLED)
 218                 flags |= QLINK_CHAN_DISABLED;
 219
 220         if (cfgflags & IEEE80211_CHAN_NO_IR)
 221                 flags |= QLINK_CHAN_NO_IR;
 222
 223         if (cfgflags & IEEE80211_CHAN_RADAR)
 224                 flags |= QLINK_CHAN_RADAR;
 225
 226         if (cfgflags & IEEE80211_CHAN_NO_HT40PLUS)
 227                 flags |= QLINK_CHAN_NO_HT40PLUS;
 228
 229         if (cfgflags & IEEE80211_CHAN_NO_HT40MINUS)
 230                 flags |= QLINK_CHAN_NO_HT40MINUS;
 231
 232         if (cfgflags & IEEE80211_CHAN_NO_80MHZ)
 233                 flags |= QLINK_CHAN_NO_80MHZ;
 234
 235         if (cfgflags & IEEE80211_CHAN_NO_160MHZ)
 236                 flags |= QLINK_CHAN_NO_160MHZ;
 237
 238         return flags;
 239 }
 240
 241 static u32 qtnf_reg_rule_flags_parse(u32 qflags)
 242 {
 243         u32 flags = 0;
 244
 245         if (qflags & QLINK_RRF_NO_OFDM)
 246                 flags |= NL80211_RRF_NO_OFDM;
 247
 248         if (qflags & QLINK_RRF_NO_CCK)
 249                 flags |= NL80211_RRF_NO_CCK;
 250
 251         if (qflags & QLINK_RRF_NO_INDOOR)
 252                 flags |= NL80211_RRF_NO_INDOOR;
 253
 254         if (qflags & QLINK_RRF_NO_OUTDOOR)
 255                 flags |= NL80211_RRF_NO_OUTDOOR;
 256
 257         if (qflags & QLINK_RRF_DFS)
 258                 flags |= NL80211_RRF_DFS;
 259
 260         if (qflags & QLINK_RRF_PTP_ONLY)
 261                 flags |= NL80211_RRF_PTP_ONLY;
 262
 263         if (qflags & QLINK_RRF_PTMP_ONLY)
 264                 flags |= NL80211_RRF_PTMP_ONLY;
 265
 266         if (qflags & QLINK_RRF_NO_IR)
 267                 flags |= NL80211_RRF_NO_IR;
 268
 269         if (qflags & QLINK_RRF_AUTO_BW)
 270                 flags |= NL80211_RRF_AUTO_BW;
 271
 272         if (qflags & QLINK_RRF_IR_CONCURRENT)
 273                 flags |= NL80211_RRF_IR_CONCURRENT;
 274
 275         if (qflags & QLINK_RRF_NO_HT40MINUS)
 276                 flags |= NL80211_RRF_NO_HT40MINUS;
 277
 278         if (qflags & QLINK_RRF_NO_HT40PLUS)
 279                 flags |= NL80211_RRF_NO_HT40PLUS;
 280
 281         if (qflags & QLINK_RRF_NO_80MHZ)
 282                 flags |= NL80211_RRF_NO_80MHZ;
 283
 284         if (qflags & QLINK_RRF_NO_160MHZ)
 285                 flags |= NL80211_RRF_NO_160MHZ;
 286
 287         return flags;
 288 }
 289
 290 void qlink_utils_regrule_q2nl(struct ieee80211_reg_rule *rule,
 291                               const struct qlink_tlv_reg_rule *tlv)
 292 {
 293         rule->freq_range.start_freq_khz = le32_to_cpu(tlv->start_freq_khz);
 294         rule->freq_range.end_freq_khz = le32_to_cpu(tlv->end_freq_khz);
 295         rule->freq_range.max_bandwidth_khz =
 296                 le32_to_cpu(tlv->max_bandwidth_khz);
 297         rule->power_rule.max_antenna_gain = le32_to_cpu(tlv->max_antenna_gain);
 298         rule->power_rule.max_eirp = le32_to_cpu(tlv->max_eirp);
 299         rule->dfs_cac_ms = le32_to_cpu(tlv->dfs_cac_ms);
 300         rule->flags = qtnf_reg_rule_flags_parse(le32_to_cpu(tlv->flags));
 301 }