developer | 0f312e8 | 2022-11-01 12:31:52 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* |
| 3 | * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl> |
| 4 | * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> |
| 5 | */ |
| 6 | |
| 7 | #include <linux/module.h> |
| 8 | #include "mt76x02.h" |
| 9 | |
| 10 | #define MT76x02_CCK_RATE(_idx, _rate) { \ |
| 11 | .bitrate = _rate, \ |
| 12 | .flags = IEEE80211_RATE_SHORT_PREAMBLE, \ |
| 13 | .hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \ |
| 14 | .hw_value_short = (MT_PHY_TYPE_CCK << 8) | (8 + (_idx)), \ |
| 15 | } |
| 16 | |
| 17 | struct ieee80211_rate mt76x02_rates[] = { |
| 18 | MT76x02_CCK_RATE(0, 10), |
| 19 | MT76x02_CCK_RATE(1, 20), |
| 20 | MT76x02_CCK_RATE(2, 55), |
| 21 | MT76x02_CCK_RATE(3, 110), |
| 22 | OFDM_RATE(0, 60), |
| 23 | OFDM_RATE(1, 90), |
| 24 | OFDM_RATE(2, 120), |
| 25 | OFDM_RATE(3, 180), |
| 26 | OFDM_RATE(4, 240), |
| 27 | OFDM_RATE(5, 360), |
| 28 | OFDM_RATE(6, 480), |
| 29 | OFDM_RATE(7, 540), |
| 30 | }; |
| 31 | EXPORT_SYMBOL_GPL(mt76x02_rates); |
| 32 | |
| 33 | static const struct ieee80211_iface_limit mt76x02_if_limits[] = { |
| 34 | { |
| 35 | .max = 1, |
| 36 | .types = BIT(NL80211_IFTYPE_ADHOC) |
| 37 | }, { |
| 38 | .max = 8, |
| 39 | .types = BIT(NL80211_IFTYPE_STATION) | |
| 40 | #ifdef CONFIG_MAC80211_MESH |
| 41 | BIT(NL80211_IFTYPE_MESH_POINT) | |
| 42 | #endif |
| 43 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| 44 | BIT(NL80211_IFTYPE_P2P_GO) | |
| 45 | BIT(NL80211_IFTYPE_AP) |
| 46 | }, |
| 47 | }; |
| 48 | |
| 49 | static const struct ieee80211_iface_limit mt76x02u_if_limits[] = { |
| 50 | { |
| 51 | .max = 1, |
| 52 | .types = BIT(NL80211_IFTYPE_ADHOC) |
| 53 | }, { |
| 54 | .max = 2, |
| 55 | .types = BIT(NL80211_IFTYPE_STATION) | |
| 56 | #ifdef CONFIG_MAC80211_MESH |
| 57 | BIT(NL80211_IFTYPE_MESH_POINT) | |
| 58 | #endif |
| 59 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| 60 | BIT(NL80211_IFTYPE_P2P_GO) | |
| 61 | BIT(NL80211_IFTYPE_AP) |
| 62 | }, |
| 63 | }; |
| 64 | |
| 65 | static const struct ieee80211_iface_combination mt76x02_if_comb[] = { |
| 66 | { |
| 67 | .limits = mt76x02_if_limits, |
| 68 | .n_limits = ARRAY_SIZE(mt76x02_if_limits), |
| 69 | .max_interfaces = 8, |
| 70 | .num_different_channels = 1, |
| 71 | .beacon_int_infra_match = true, |
| 72 | .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | |
| 73 | BIT(NL80211_CHAN_WIDTH_20) | |
| 74 | BIT(NL80211_CHAN_WIDTH_40) | |
| 75 | BIT(NL80211_CHAN_WIDTH_80), |
| 76 | } |
| 77 | }; |
| 78 | |
| 79 | static const struct ieee80211_iface_combination mt76x02u_if_comb[] = { |
| 80 | { |
| 81 | .limits = mt76x02u_if_limits, |
| 82 | .n_limits = ARRAY_SIZE(mt76x02u_if_limits), |
| 83 | .max_interfaces = 2, |
| 84 | .num_different_channels = 1, |
| 85 | .beacon_int_infra_match = true, |
| 86 | } |
| 87 | }; |
| 88 | |
| 89 | static void |
| 90 | mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on, |
| 91 | u8 delay_off) |
| 92 | { |
| 93 | struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, |
| 94 | mt76); |
| 95 | u32 val; |
| 96 | |
| 97 | val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) | |
| 98 | FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | |
| 99 | FIELD_PREP(MT_LED_STATUS_ON, delay_on); |
| 100 | |
| 101 | mt76_wr(dev, MT_LED_S0(mdev->led_pin), val); |
| 102 | mt76_wr(dev, MT_LED_S1(mdev->led_pin), val); |
| 103 | |
| 104 | val = MT_LED_CTRL_REPLAY(mdev->led_pin) | |
| 105 | MT_LED_CTRL_KICK(mdev->led_pin); |
| 106 | if (mdev->led_al) |
| 107 | val |= MT_LED_CTRL_POLARITY(mdev->led_pin); |
| 108 | mt76_wr(dev, MT_LED_CTRL, val); |
| 109 | } |
| 110 | |
| 111 | static int |
| 112 | mt76x02_led_set_blink(struct led_classdev *led_cdev, |
| 113 | unsigned long *delay_on, |
| 114 | unsigned long *delay_off) |
| 115 | { |
| 116 | struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, |
| 117 | led_cdev); |
| 118 | u8 delta_on, delta_off; |
| 119 | |
| 120 | delta_off = max_t(u8, *delay_off / 10, 1); |
| 121 | delta_on = max_t(u8, *delay_on / 10, 1); |
| 122 | |
| 123 | mt76x02_led_set_config(mdev, delta_on, delta_off); |
| 124 | |
| 125 | return 0; |
| 126 | } |
| 127 | |
| 128 | static void |
| 129 | mt76x02_led_set_brightness(struct led_classdev *led_cdev, |
| 130 | enum led_brightness brightness) |
| 131 | { |
| 132 | struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, |
| 133 | led_cdev); |
| 134 | |
| 135 | if (!brightness) |
| 136 | mt76x02_led_set_config(mdev, 0, 0xff); |
| 137 | else |
| 138 | mt76x02_led_set_config(mdev, 0xff, 0); |
| 139 | } |
| 140 | |
| 141 | int mt76x02_init_device(struct mt76x02_dev *dev) |
| 142 | { |
| 143 | struct ieee80211_hw *hw = mt76_hw(dev); |
| 144 | struct wiphy *wiphy = hw->wiphy; |
| 145 | |
| 146 | INIT_DELAYED_WORK(&dev->mphy.mac_work, mt76x02_mac_work); |
| 147 | |
| 148 | hw->queues = 4; |
| 149 | hw->max_rates = 1; |
| 150 | hw->max_report_rates = 7; |
| 151 | hw->max_rate_tries = 1; |
| 152 | hw->extra_tx_headroom = 2; |
| 153 | |
| 154 | if (mt76_is_usb(&dev->mt76)) { |
| 155 | hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + |
| 156 | MT_DMA_HDR_LEN; |
| 157 | wiphy->iface_combinations = mt76x02u_if_comb; |
| 158 | wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); |
| 159 | } else { |
| 160 | INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); |
| 161 | |
| 162 | mt76x02_dfs_init_detector(dev); |
| 163 | |
| 164 | wiphy->reg_notifier = mt76x02_regd_notifier; |
| 165 | wiphy->iface_combinations = mt76x02_if_comb; |
| 166 | wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); |
| 167 | |
| 168 | /* init led callbacks */ |
| 169 | if (IS_ENABLED(CONFIG_MT76_LEDS)) { |
| 170 | dev->mt76.led_cdev.brightness_set = |
| 171 | mt76x02_led_set_brightness; |
| 172 | dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); |
| 177 | |
| 178 | hw->sta_data_size = sizeof(struct mt76x02_sta); |
| 179 | hw->vif_data_size = sizeof(struct mt76x02_vif); |
| 180 | |
| 181 | ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); |
| 182 | ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); |
| 183 | ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); |
| 184 | |
| 185 | dev->mt76.global_wcid.idx = 255; |
| 186 | dev->mt76.global_wcid.hw_key_idx = -1; |
| 187 | dev->slottime = 9; |
| 188 | |
| 189 | if (is_mt76x2(dev)) { |
| 190 | dev->mphy.sband_2g.sband.ht_cap.cap |= |
| 191 | IEEE80211_HT_CAP_LDPC_CODING; |
| 192 | dev->mphy.sband_5g.sband.ht_cap.cap |= |
| 193 | IEEE80211_HT_CAP_LDPC_CODING; |
| 194 | dev->mphy.chainmask = 0x202; |
| 195 | dev->mphy.antenna_mask = 3; |
| 196 | } else { |
| 197 | dev->mphy.chainmask = 0x101; |
| 198 | dev->mphy.antenna_mask = 1; |
| 199 | } |
| 200 | |
| 201 | return 0; |
| 202 | } |
| 203 | EXPORT_SYMBOL_GPL(mt76x02_init_device); |
| 204 | |
| 205 | void mt76x02_configure_filter(struct ieee80211_hw *hw, |
| 206 | unsigned int changed_flags, |
| 207 | unsigned int *total_flags, u64 multicast) |
| 208 | { |
| 209 | struct mt76x02_dev *dev = hw->priv; |
| 210 | u32 flags = 0; |
| 211 | |
| 212 | #define MT76_FILTER(_flag, _hw) do { \ |
| 213 | flags |= *total_flags & FIF_##_flag; \ |
| 214 | dev->mt76.rxfilter &= ~(_hw); \ |
| 215 | dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ |
| 216 | } while (0) |
| 217 | |
| 218 | mutex_lock(&dev->mt76.mutex); |
| 219 | |
| 220 | dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; |
| 221 | |
| 222 | MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); |
| 223 | MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); |
| 224 | MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | |
| 225 | MT_RX_FILTR_CFG_CTS | |
| 226 | MT_RX_FILTR_CFG_CFEND | |
| 227 | MT_RX_FILTR_CFG_CFACK | |
| 228 | MT_RX_FILTR_CFG_BA | |
| 229 | MT_RX_FILTR_CFG_CTRL_RSV); |
| 230 | MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); |
| 231 | |
| 232 | *total_flags = flags; |
| 233 | mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); |
| 234 | |
| 235 | mutex_unlock(&dev->mt76.mutex); |
| 236 | } |
| 237 | EXPORT_SYMBOL_GPL(mt76x02_configure_filter); |
| 238 | |
| 239 | int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, |
| 240 | struct ieee80211_sta *sta) |
| 241 | { |
| 242 | struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); |
| 243 | struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; |
| 244 | struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; |
| 245 | int idx = 0; |
| 246 | |
| 247 | memset(msta, 0, sizeof(*msta)); |
| 248 | |
| 249 | idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); |
| 250 | if (idx < 0) |
| 251 | return -ENOSPC; |
| 252 | |
| 253 | msta->vif = mvif; |
| 254 | msta->wcid.sta = 1; |
| 255 | msta->wcid.idx = idx; |
| 256 | msta->wcid.hw_key_idx = -1; |
| 257 | mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); |
| 258 | mt76x02_mac_wcid_set_drop(dev, idx, false); |
| 259 | ewma_pktlen_init(&msta->pktlen); |
| 260 | |
| 261 | if (vif->type == NL80211_IFTYPE_AP) |
| 262 | set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); |
| 263 | |
| 264 | return 0; |
| 265 | } |
| 266 | EXPORT_SYMBOL_GPL(mt76x02_sta_add); |
| 267 | |
| 268 | void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, |
| 269 | struct ieee80211_sta *sta) |
| 270 | { |
| 271 | struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); |
| 272 | struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; |
| 273 | int idx = wcid->idx; |
| 274 | |
| 275 | mt76x02_mac_wcid_set_drop(dev, idx, true); |
| 276 | mt76x02_mac_wcid_setup(dev, idx, 0, NULL); |
| 277 | } |
| 278 | EXPORT_SYMBOL_GPL(mt76x02_sta_remove); |
| 279 | |
| 280 | static void |
| 281 | mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, |
| 282 | unsigned int idx) |
| 283 | { |
| 284 | struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; |
| 285 | struct mt76_txq *mtxq; |
| 286 | |
| 287 | memset(mvif, 0, sizeof(*mvif)); |
| 288 | |
| 289 | mvif->idx = idx; |
| 290 | mvif->group_wcid.idx = MT_VIF_WCID(idx); |
| 291 | mvif->group_wcid.hw_key_idx = -1; |
| 292 | mt76_packet_id_init(&mvif->group_wcid); |
| 293 | |
| 294 | mtxq = (struct mt76_txq *)vif->txq->drv_priv; |
| 295 | rcu_assign_pointer(dev->mt76.wcid[MT_VIF_WCID(idx)], &mvif->group_wcid); |
| 296 | mtxq->wcid = MT_VIF_WCID(idx); |
| 297 | } |
| 298 | |
| 299 | int |
| 300 | mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
| 301 | { |
| 302 | struct mt76x02_dev *dev = hw->priv; |
| 303 | unsigned int idx = 0; |
| 304 | |
| 305 | /* Allow to change address in HW if we create first interface. */ |
| 306 | if (!dev->mt76.vif_mask && |
| 307 | (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) || |
| 308 | memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1))) |
| 309 | mt76x02_mac_setaddr(dev, vif->addr); |
| 310 | |
| 311 | if (vif->addr[0] & BIT(1)) |
| 312 | idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7); |
| 313 | |
| 314 | /* |
| 315 | * Client mode typically only has one configurable BSSID register, |
| 316 | * which is used for bssidx=0. This is linked to the MAC address. |
| 317 | * Since mac80211 allows changing interface types, and we cannot |
| 318 | * force the use of the primary MAC address for a station mode |
| 319 | * interface, we need some other way of configuring a per-interface |
| 320 | * remote BSSID. |
| 321 | * The hardware provides an AP-Client feature, where bssidx 0-7 are |
| 322 | * used for AP mode and bssidx 8-15 for client mode. |
| 323 | * We shift the station interface bss index by 8 to force the |
| 324 | * hardware to recognize the BSSID. |
| 325 | * The resulting bssidx mismatch for unicast frames is ignored by hw. |
| 326 | */ |
| 327 | if (vif->type == NL80211_IFTYPE_STATION) |
| 328 | idx += 8; |
| 329 | |
| 330 | /* vif is already set or idx is 8 for AP/Mesh/... */ |
| 331 | if (dev->mt76.vif_mask & BIT_ULL(idx) || |
| 332 | (vif->type != NL80211_IFTYPE_STATION && idx > 7)) |
| 333 | return -EBUSY; |
| 334 | |
| 335 | dev->mt76.vif_mask |= BIT_ULL(idx); |
| 336 | |
| 337 | mt76x02_vif_init(dev, vif, idx); |
| 338 | return 0; |
| 339 | } |
| 340 | EXPORT_SYMBOL_GPL(mt76x02_add_interface); |
| 341 | |
| 342 | void mt76x02_remove_interface(struct ieee80211_hw *hw, |
| 343 | struct ieee80211_vif *vif) |
| 344 | { |
| 345 | struct mt76x02_dev *dev = hw->priv; |
| 346 | struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; |
| 347 | |
| 348 | dev->mt76.vif_mask &= ~BIT_ULL(mvif->idx); |
| 349 | rcu_assign_pointer(dev->mt76.wcid[mvif->group_wcid.idx], NULL); |
| 350 | mt76_packet_id_flush(&dev->mt76, &mvif->group_wcid); |
| 351 | } |
| 352 | EXPORT_SYMBOL_GPL(mt76x02_remove_interface); |
| 353 | |
| 354 | int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 355 | struct ieee80211_ampdu_params *params) |
| 356 | { |
| 357 | enum ieee80211_ampdu_mlme_action action = params->action; |
| 358 | struct ieee80211_sta *sta = params->sta; |
| 359 | struct mt76x02_dev *dev = hw->priv; |
| 360 | struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; |
| 361 | struct ieee80211_txq *txq = sta->txq[params->tid]; |
| 362 | u16 tid = params->tid; |
| 363 | u16 ssn = params->ssn; |
| 364 | struct mt76_txq *mtxq; |
| 365 | int ret = 0; |
| 366 | |
| 367 | if (!txq) |
| 368 | return -EINVAL; |
| 369 | |
| 370 | mtxq = (struct mt76_txq *)txq->drv_priv; |
| 371 | |
| 372 | mutex_lock(&dev->mt76.mutex); |
| 373 | switch (action) { |
| 374 | case IEEE80211_AMPDU_RX_START: |
| 375 | mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, |
| 376 | ssn, params->buf_size); |
| 377 | mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); |
| 378 | break; |
| 379 | case IEEE80211_AMPDU_RX_STOP: |
| 380 | mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); |
| 381 | mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, |
| 382 | BIT(16 + tid)); |
| 383 | break; |
| 384 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
| 385 | mtxq->aggr = true; |
| 386 | mtxq->send_bar = false; |
| 387 | ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); |
| 388 | break; |
| 389 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
| 390 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
| 391 | mtxq->aggr = false; |
| 392 | break; |
| 393 | case IEEE80211_AMPDU_TX_START: |
| 394 | mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); |
| 395 | ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; |
| 396 | break; |
| 397 | case IEEE80211_AMPDU_TX_STOP_CONT: |
| 398 | mtxq->aggr = false; |
| 399 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
| 400 | break; |
| 401 | } |
| 402 | mutex_unlock(&dev->mt76.mutex); |
| 403 | |
| 404 | return ret; |
| 405 | } |
| 406 | EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); |
| 407 | |
| 408 | int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| 409 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
| 410 | struct ieee80211_key_conf *key) |
| 411 | { |
| 412 | struct mt76x02_dev *dev = hw->priv; |
| 413 | struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; |
| 414 | struct mt76x02_sta *msta; |
| 415 | struct mt76_wcid *wcid; |
| 416 | int idx = key->keyidx; |
| 417 | int ret; |
| 418 | |
| 419 | /* fall back to sw encryption for unsupported ciphers */ |
| 420 | switch (key->cipher) { |
| 421 | case WLAN_CIPHER_SUITE_WEP40: |
| 422 | case WLAN_CIPHER_SUITE_WEP104: |
| 423 | case WLAN_CIPHER_SUITE_TKIP: |
| 424 | case WLAN_CIPHER_SUITE_CCMP: |
| 425 | break; |
| 426 | default: |
| 427 | return -EOPNOTSUPP; |
| 428 | } |
| 429 | |
| 430 | /* |
| 431 | * The hardware does not support per-STA RX GTK, fall back |
| 432 | * to software mode for these. |
| 433 | */ |
| 434 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
| 435 | vif->type == NL80211_IFTYPE_MESH_POINT) && |
| 436 | (key->cipher == WLAN_CIPHER_SUITE_TKIP || |
| 437 | key->cipher == WLAN_CIPHER_SUITE_CCMP) && |
| 438 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
| 439 | return -EOPNOTSUPP; |
| 440 | |
| 441 | /* |
| 442 | * In USB AP mode, broadcast/multicast frames are setup in beacon |
| 443 | * data registers and sent via HW beacons engine, they require to |
| 444 | * be already encrypted. |
| 445 | */ |
| 446 | if (mt76_is_usb(&dev->mt76) && |
| 447 | vif->type == NL80211_IFTYPE_AP && |
| 448 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
| 449 | return -EOPNOTSUPP; |
| 450 | |
| 451 | /* MT76x0 GTK offloading does not work with more than one VIF */ |
| 452 | if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
| 453 | return -EOPNOTSUPP; |
| 454 | |
| 455 | msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; |
| 456 | wcid = msta ? &msta->wcid : &mvif->group_wcid; |
| 457 | |
| 458 | if (cmd == SET_KEY) { |
| 459 | key->hw_key_idx = wcid->idx; |
| 460 | wcid->hw_key_idx = idx; |
| 461 | if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { |
| 462 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; |
| 463 | wcid->sw_iv = true; |
| 464 | } |
| 465 | } else { |
| 466 | if (idx == wcid->hw_key_idx) { |
| 467 | wcid->hw_key_idx = -1; |
| 468 | wcid->sw_iv = false; |
| 469 | } |
| 470 | |
| 471 | key = NULL; |
| 472 | } |
| 473 | mt76_wcid_key_setup(&dev->mt76, wcid, key); |
| 474 | |
| 475 | if (!msta) { |
| 476 | if (key || wcid->hw_key_idx == idx) { |
| 477 | ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); |
| 478 | if (ret) |
| 479 | return ret; |
| 480 | } |
| 481 | |
| 482 | return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); |
| 483 | } |
| 484 | |
| 485 | return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); |
| 486 | } |
| 487 | EXPORT_SYMBOL_GPL(mt76x02_set_key); |
| 488 | |
| 489 | int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 490 | u16 queue, const struct ieee80211_tx_queue_params *params) |
| 491 | { |
| 492 | struct mt76x02_dev *dev = hw->priv; |
| 493 | u8 cw_min = 5, cw_max = 10, qid; |
| 494 | u32 val; |
| 495 | |
| 496 | qid = dev->mphy.q_tx[queue]->hw_idx; |
| 497 | |
| 498 | if (params->cw_min) |
| 499 | cw_min = fls(params->cw_min); |
| 500 | if (params->cw_max) |
| 501 | cw_max = fls(params->cw_max); |
| 502 | |
| 503 | val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | |
| 504 | FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | |
| 505 | FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | |
| 506 | FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); |
| 507 | mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); |
| 508 | |
| 509 | val = mt76_rr(dev, MT_WMM_TXOP(qid)); |
| 510 | val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); |
| 511 | val |= params->txop << MT_WMM_TXOP_SHIFT(qid); |
| 512 | mt76_wr(dev, MT_WMM_TXOP(qid), val); |
| 513 | |
| 514 | val = mt76_rr(dev, MT_WMM_AIFSN); |
| 515 | val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); |
| 516 | val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); |
| 517 | mt76_wr(dev, MT_WMM_AIFSN, val); |
| 518 | |
| 519 | val = mt76_rr(dev, MT_WMM_CWMIN); |
| 520 | val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); |
| 521 | val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); |
| 522 | mt76_wr(dev, MT_WMM_CWMIN, val); |
| 523 | |
| 524 | val = mt76_rr(dev, MT_WMM_CWMAX); |
| 525 | val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); |
| 526 | val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); |
| 527 | mt76_wr(dev, MT_WMM_CWMAX, val); |
| 528 | |
| 529 | return 0; |
| 530 | } |
| 531 | EXPORT_SYMBOL_GPL(mt76x02_conf_tx); |
| 532 | |
| 533 | void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) |
| 534 | { |
| 535 | u8 ackto, sifs, slottime = dev->slottime; |
| 536 | |
| 537 | /* As defined by IEEE 802.11-2007 17.3.8.6 */ |
| 538 | slottime += 3 * dev->coverage_class; |
| 539 | mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, |
| 540 | MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); |
| 541 | |
| 542 | sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, |
| 543 | MT_XIFS_TIME_CFG_OFDM_SIFS); |
| 544 | |
| 545 | ackto = slottime + sifs; |
| 546 | mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, |
| 547 | MT_TX_TIMEOUT_CFG_ACKTO, ackto); |
| 548 | } |
| 549 | EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); |
| 550 | |
| 551 | void mt76x02_set_coverage_class(struct ieee80211_hw *hw, |
| 552 | s16 coverage_class) |
| 553 | { |
| 554 | struct mt76x02_dev *dev = hw->priv; |
| 555 | |
| 556 | mutex_lock(&dev->mt76.mutex); |
| 557 | dev->coverage_class = max_t(s16, coverage_class, 0); |
| 558 | mt76x02_set_tx_ackto(dev); |
| 559 | mutex_unlock(&dev->mt76.mutex); |
| 560 | } |
| 561 | EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); |
| 562 | |
| 563 | int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) |
| 564 | { |
| 565 | struct mt76x02_dev *dev = hw->priv; |
| 566 | |
| 567 | if (val != ~0 && val > 0xffff) |
| 568 | return -EINVAL; |
| 569 | |
| 570 | mutex_lock(&dev->mt76.mutex); |
| 571 | mt76x02_mac_set_rts_thresh(dev, val); |
| 572 | mutex_unlock(&dev->mt76.mutex); |
| 573 | |
| 574 | return 0; |
| 575 | } |
| 576 | EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); |
| 577 | |
| 578 | void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, |
| 579 | struct ieee80211_vif *vif, |
| 580 | struct ieee80211_sta *sta) |
| 581 | { |
| 582 | struct mt76x02_dev *dev = hw->priv; |
| 583 | struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; |
| 584 | struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); |
| 585 | struct ieee80211_tx_rate rate = {}; |
| 586 | |
| 587 | if (!rates) |
| 588 | return; |
| 589 | |
| 590 | rate.idx = rates->rate[0].idx; |
| 591 | rate.flags = rates->rate[0].flags; |
| 592 | mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); |
| 593 | } |
| 594 | EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); |
| 595 | |
| 596 | void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) |
| 597 | { |
| 598 | int hdrlen; |
| 599 | |
| 600 | if (!len) |
| 601 | return; |
| 602 | |
| 603 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); |
| 604 | memmove(skb->data + len, skb->data, hdrlen); |
| 605 | skb_pull(skb, len); |
| 606 | } |
| 607 | EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); |
| 608 | |
| 609 | void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, |
| 610 | struct ieee80211_vif *vif) |
| 611 | { |
| 612 | struct mt76x02_dev *dev = hw->priv; |
| 613 | |
| 614 | clear_bit(MT76_SCANNING, &dev->mphy.state); |
| 615 | if (dev->cal.gain_init_done) { |
| 616 | /* Restore AGC gain and resume calibration after scanning. */ |
| 617 | dev->cal.low_gain = -1; |
| 618 | ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); |
| 619 | } |
| 620 | } |
| 621 | EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); |
| 622 | |
| 623 | void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, |
| 624 | bool ps) |
| 625 | { |
| 626 | struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); |
| 627 | struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; |
| 628 | int idx = msta->wcid.idx; |
| 629 | |
| 630 | mt76_stop_tx_queues(&dev->mphy, sta, true); |
| 631 | if (mt76_is_mmio(mdev)) |
| 632 | mt76x02_mac_wcid_set_drop(dev, idx, ps); |
| 633 | } |
| 634 | EXPORT_SYMBOL_GPL(mt76x02_sta_ps); |
| 635 | |
| 636 | void mt76x02_bss_info_changed(struct ieee80211_hw *hw, |
| 637 | struct ieee80211_vif *vif, |
| 638 | struct ieee80211_bss_conf *info, |
| 639 | u32 changed) |
| 640 | { |
| 641 | struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; |
| 642 | struct mt76x02_dev *dev = hw->priv; |
| 643 | |
| 644 | mutex_lock(&dev->mt76.mutex); |
| 645 | |
| 646 | if (changed & BSS_CHANGED_BSSID) |
| 647 | mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); |
| 648 | |
| 649 | if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) |
| 650 | mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, |
| 651 | info->ht_operation_mode); |
| 652 | |
| 653 | if (changed & BSS_CHANGED_BEACON_INT) { |
| 654 | mt76_rmw_field(dev, MT_BEACON_TIME_CFG, |
| 655 | MT_BEACON_TIME_CFG_INTVAL, |
| 656 | info->beacon_int << 4); |
| 657 | dev->mt76.beacon_int = info->beacon_int; |
| 658 | } |
| 659 | |
| 660 | if (changed & BSS_CHANGED_BEACON_ENABLED) |
| 661 | mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); |
| 662 | |
| 663 | if (changed & BSS_CHANGED_ERP_PREAMBLE) |
| 664 | mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); |
| 665 | |
| 666 | if (changed & BSS_CHANGED_ERP_SLOT) { |
| 667 | int slottime = info->use_short_slot ? 9 : 20; |
| 668 | |
| 669 | dev->slottime = slottime; |
| 670 | mt76x02_set_tx_ackto(dev); |
| 671 | } |
| 672 | |
| 673 | mutex_unlock(&dev->mt76.mutex); |
| 674 | } |
| 675 | EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); |
| 676 | |
| 677 | void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) |
| 678 | { |
| 679 | struct ieee80211_hw *hw = mt76_hw(dev); |
| 680 | struct wiphy *wiphy = hw->wiphy; |
| 681 | int i; |
| 682 | |
| 683 | for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { |
| 684 | u8 *addr = dev->macaddr_list[i].addr; |
| 685 | |
| 686 | memcpy(addr, dev->mphy.macaddr, ETH_ALEN); |
| 687 | |
| 688 | if (!i) |
| 689 | continue; |
| 690 | |
| 691 | addr[0] |= BIT(1); |
| 692 | addr[0] ^= ((i - 1) << 2); |
| 693 | } |
| 694 | wiphy->addresses = dev->macaddr_list; |
| 695 | wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); |
| 696 | } |
| 697 | EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); |
| 698 | |
| 699 | MODULE_LICENSE("Dual BSD/GPL"); |