diff options
Diffstat (limited to 'drivers/net/wireless/quantenna/qtnfmac/cfg80211.c')
| -rw-r--r-- | drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 1289 |
1 files changed, 1289 insertions, 0 deletions
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c new file mode 100644 index 000000000..73e6f9408 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c @@ -0,0 +1,1289 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/kernel.h> +#include <linux/etherdevice.h> +#include <linux/vmalloc.h> +#include <linux/ieee80211.h> +#include <net/cfg80211.h> +#include <net/netlink.h> + +#include "cfg80211.h" +#include "commands.h" +#include "core.h" +#include "util.h" +#include "bus.h" + +/* Supported rates to be advertised to the cfg80211 */ +static struct ieee80211_rate qtnf_rates_2g[] = { + {.bitrate = 10, .hw_value = 2, }, + {.bitrate = 20, .hw_value = 4, }, + {.bitrate = 55, .hw_value = 11, }, + {.bitrate = 110, .hw_value = 22, }, + {.bitrate = 60, .hw_value = 12, }, + {.bitrate = 90, .hw_value = 18, }, + {.bitrate = 120, .hw_value = 24, }, + {.bitrate = 180, .hw_value = 36, }, + {.bitrate = 240, .hw_value = 48, }, + {.bitrate = 360, .hw_value = 72, }, + {.bitrate = 480, .hw_value = 96, }, + {.bitrate = 540, .hw_value = 108, }, +}; + +/* Supported rates to be advertised to the cfg80211 */ +static struct ieee80211_rate qtnf_rates_5g[] = { + {.bitrate = 60, .hw_value = 12, }, + {.bitrate = 90, .hw_value = 18, }, + {.bitrate = 120, .hw_value = 24, }, + {.bitrate = 180, .hw_value = 36, }, + {.bitrate = 240, .hw_value = 48, }, + {.bitrate = 360, .hw_value = 72, }, + {.bitrate = 480, .hw_value = 96, }, + {.bitrate = 540, .hw_value = 108, }, +}; + +/* Supported crypto cipher suits to be advertised to cfg80211 */ +static const u32 qtnf_cipher_suites[] = { + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, + WLAN_CIPHER_SUITE_AES_CMAC, +}; + +/* Supported mgmt frame types to be advertised to cfg80211 */ +static const struct ieee80211_txrx_stypes +qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = { + [NL80211_IFTYPE_STATION] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + }, + [NL80211_IFTYPE_AP] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | + BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + }, +}; + +static int +qtnf_validate_iface_combinations(struct wiphy *wiphy, + struct qtnf_vif *change_vif, + enum nl80211_iftype new_type) +{ + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + int i; + int ret = 0; + struct iface_combination_params params = { + .num_different_channels = 1, + }; + + mac = wiphy_priv(wiphy); + if (!mac) + return -EFAULT; + + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) + params.iftype_num[vif->wdev.iftype]++; + } + + if (change_vif) { + params.iftype_num[new_type]++; + params.iftype_num[change_vif->wdev.iftype]--; + } else { + params.iftype_num[new_type]++; + } + + ret = cfg80211_check_combinations(wiphy, ¶ms); + + if (ret) + return ret; + + /* Check repeater interface combination: primary VIF should be STA only. + * STA (primary) + AP (secondary) is OK. + * AP (primary) + STA (secondary) is not supported. + */ + vif = qtnf_mac_get_base_vif(mac); + if (vif && vif->wdev.iftype == NL80211_IFTYPE_AP && + vif != change_vif && new_type == NL80211_IFTYPE_STATION) { + ret = -EINVAL; + pr_err("MAC%u invalid combination: AP as primary repeater interface is not supported\n", + mac->macid); + } + + return ret; +} + +static int +qtnf_change_virtual_intf(struct wiphy *wiphy, + struct net_device *dev, + enum nl80211_iftype type, + struct vif_params *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + u8 *mac_addr = NULL; + int use4addr = 0; + int ret; + + ret = qtnf_validate_iface_combinations(wiphy, vif, type); + if (ret) { + pr_err("VIF%u.%u combination check: failed to set type %d\n", + vif->mac->macid, vif->vifid, type); + return ret; + } + + if (params) { + mac_addr = params->macaddr; + use4addr = params->use_4addr; + } + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_change_intf_type(vif, type, use4addr, mac_addr); + if (ret) { + pr_err("VIF%u.%u: failed to change type to %d\n", + vif->mac->macid, vif->vifid, type); + return ret; + } + + vif->wdev.iftype = type; + return 0; +} + +int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) +{ + struct net_device *netdev = wdev->netdev; + struct qtnf_vif *vif; + struct sk_buff *skb; + + if (WARN_ON(!netdev)) + return -EFAULT; + + vif = qtnf_netdev_get_priv(wdev->netdev); + + qtnf_scan_done(vif->mac, true); + + /* Stop data */ + netif_tx_stop_all_queues(netdev); + if (netif_carrier_ok(netdev)) + netif_carrier_off(netdev); + + while ((skb = skb_dequeue(&vif->high_pri_tx_queue))) + dev_kfree_skb_any(skb); + + cancel_work_sync(&vif->high_pri_tx_work); + + if (netdev->reg_state == NETREG_REGISTERED) + cfg80211_unregister_netdevice(netdev); + + if (qtnf_cmd_send_del_intf(vif)) + pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, + vif->vifid); + + vif->netdev->ieee80211_ptr = NULL; + vif->netdev = NULL; + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + + return 0; +} + +static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, + const char *name, + unsigned char name_assign_t, + enum nl80211_iftype type, + struct vif_params *params) +{ + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + u8 *mac_addr = NULL; + int use4addr = 0; + int ret; + + mac = wiphy_priv(wiphy); + + if (!mac) + return ERR_PTR(-EFAULT); + + ret = qtnf_validate_iface_combinations(wiphy, NULL, type); + if (ret) { + pr_err("MAC%u invalid combination: failed to add type %d\n", + mac->macid, type); + return ERR_PTR(ret); + } + + switch (type) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_AP: + vif = qtnf_mac_get_free_vif(mac); + if (!vif) { + pr_err("MAC%u: no free VIF available\n", mac->macid); + return ERR_PTR(-EFAULT); + } + + eth_zero_addr(vif->mac_addr); + eth_zero_addr(vif->bssid); + vif->bss_priority = QTNF_DEF_BSS_PRIORITY; + memset(&vif->wdev, 0, sizeof(vif->wdev)); + vif->wdev.wiphy = wiphy; + vif->wdev.iftype = type; + break; + default: + pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); + return ERR_PTR(-ENOTSUPP); + } + + if (params) { + mac_addr = params->macaddr; + use4addr = params->use_4addr; + } + + ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr); + if (ret) { + pr_err("VIF%u.%u: failed to add VIF %pM\n", + mac->macid, vif->vifid, mac_addr); + goto err_cmd; + } + + if (!is_valid_ether_addr(vif->mac_addr)) { + pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", + mac->macid, vif->vifid, vif->mac_addr); + ret = -EINVAL; + goto error_del_vif; + } + + ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); + if (ret) { + pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, + vif->vifid); + goto error_del_vif; + } + + if (qtnf_hwcap_is_set(&mac->bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE)) { + ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex); + if (ret) { + cfg80211_unregister_netdevice(vif->netdev); + vif->netdev = NULL; + goto error_del_vif; + } + } + + vif->wdev.netdev = vif->netdev; + return &vif->wdev; + +error_del_vif: + qtnf_cmd_send_del_intf(vif); +err_cmd: + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + + return ERR_PTR(ret); +} + +static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, + const struct cfg80211_beacon_data *info) +{ + int ret = 0; + + if (!info->beacon_ies || !info->beacon_ies_len) { + ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, + NULL, 0); + } else { + ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, + info->beacon_ies, + info->beacon_ies_len); + } + + if (ret) + goto out; + + if (!info->proberesp_ies || !info->proberesp_ies_len) { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_PROBE_RESP_IES, + NULL, 0); + } else { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_PROBE_RESP_IES, + info->proberesp_ies, + info->proberesp_ies_len); + } + + if (ret) + goto out; + + if (!info->assocresp_ies || !info->assocresp_ies_len) { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_ASSOC_RESP, + NULL, 0); + } else { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_ASSOC_RESP, + info->assocresp_ies, + info->assocresp_ies_len); + } + +out: + return ret; +} + +static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_beacon_data *info) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + + return qtnf_mgmt_set_appie(vif, info); +} + +static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_ap_settings *settings) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_start_ap(vif, settings); + if (ret) + pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, + vif->vifid); + + return ret; +} + +static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev, + unsigned int link_id) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_stop_ap(vif); + if (ret) + pr_err("VIF%u.%u: failed to stop AP operation in FW\n", + vif->mac->macid, vif->vifid); + + netif_carrier_off(vif->netdev); + + return ret; +} + +static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + return -EFAULT; + } + + ret = qtnf_cmd_send_update_phy_params(mac, changed); + if (ret) + pr_err("MAC%u: failed to update PHY params\n", mac->macid); + + return ret; +} + +static void +qtnf_update_mgmt_frame_registrations(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct mgmt_frame_regs *upd) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); + u16 new_mask = upd->interface_stypes; + u16 old_mask = vif->mgmt_frames_bitmask; + static const struct { + u16 mask, qlink_type; + } updates[] = { + { + .mask = BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_ASSOC_REQ >> 4), + .qlink_type = QLINK_MGMT_FRAME_ASSOC_REQ, + }, + { + .mask = BIT(IEEE80211_STYPE_AUTH >> 4), + .qlink_type = QLINK_MGMT_FRAME_AUTH, + }, + { + .mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4), + .qlink_type = QLINK_MGMT_FRAME_PROBE_REQ, + }, + { + .mask = BIT(IEEE80211_STYPE_ACTION >> 4), + .qlink_type = QLINK_MGMT_FRAME_ACTION, + }, + }; + unsigned int i; + + if (new_mask == old_mask) + return; + + for (i = 0; i < ARRAY_SIZE(updates); i++) { + u16 mask = updates[i].mask; + u16 qlink_frame_type = updates[i].qlink_type; + bool reg; + + /* the ! are here due to the assoc/reassoc merge */ + if (!(new_mask & mask) == !(old_mask & mask)) + continue; + + reg = new_mask & mask; + + if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) + pr_warn("VIF%u.%u: failed to %sregister qlink frame type 0x%x\n", + vif->mac->macid, vif->vifid, reg ? "" : "un", + qlink_frame_type); + } + + vif->mgmt_frames_bitmask = new_mask; +} + +static int +qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, u64 *cookie) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); + const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; + u32 short_cookie = get_random_u32(); + u16 flags = 0; + u16 freq; + + *cookie = short_cookie; + + if (params->offchan) + flags |= QLINK_FRAME_TX_FLAG_OFFCHAN; + + if (params->no_cck) + flags |= QLINK_FRAME_TX_FLAG_NO_CCK; + + if (params->dont_wait_for_ack) + flags |= QLINK_FRAME_TX_FLAG_ACK_NOWAIT; + + /* If channel is not specified, pass "freq = 0" to tell device + * firmware to use current channel. + */ + if (params->chan) + freq = params->chan->center_freq; + else + freq = 0; + + pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", + wdev->netdev->name, freq, + le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, + params->len, short_cookie, flags); + + return qtnf_cmd_send_frame(vif, short_cookie, flags, + freq, params->buf, params->len); +} + +static int +qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_info *sinfo) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + + sinfo->generation = vif->generation; + return qtnf_cmd_get_sta_info(vif, mac, sinfo); +} + +static int +qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, + int idx, u8 *mac, struct station_info *sinfo) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + const struct qtnf_sta_node *sta_node; + int ret; + + switch (vif->wdev.iftype) { + case NL80211_IFTYPE_STATION: + if (idx != 0 || !vif->wdev.connected) + return -ENOENT; + + ether_addr_copy(mac, vif->bssid); + break; + case NL80211_IFTYPE_AP: + sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); + if (unlikely(!sta_node)) + return -ENOENT; + + ether_addr_copy(mac, sta_node->mac_addr); + break; + default: + return -ENOTSUPP; + } + + ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); + + if (vif->wdev.iftype == NL80211_IFTYPE_AP) { + if (ret == -ENOENT) { + cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); + sinfo->filled = 0; + } + } + + sinfo->generation = vif->generation; + + return ret; +} + +static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index, bool pairwise, + const u8 *mac_addr, struct key_params *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); + if (ret) + pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", + vif->mac->macid, vif->vifid, params->cipher, key_index, + pairwise); + + return ret; +} + +static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index, bool pairwise, + const u8 *mac_addr) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); + if (ret) { + if (ret == -ENOENT) { + pr_debug("VIF%u.%u: key index %d out of bounds\n", + vif->mac->macid, vif->vifid, key_index); + } else { + pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", + vif->mac->macid, vif->vifid, + key_index, pairwise); + } + } + + return ret; +} + +static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index, bool unicast, + bool multicast) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); + if (ret) + pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", + vif->mac->macid, vif->vifid, key_index, unicast, + multicast); + + return ret; +} + +static int +qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); + if (ret) + pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", + vif->mac->macid, vif->vifid, key_index); + + return ret; +} + +static int +qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_parameters *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_change_sta(vif, mac, params); + if (ret) + pr_err("VIF%u.%u: failed to change STA %pM\n", + vif->mac->macid, vif->vifid, mac); + + return ret; +} + +static int +qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, + struct station_del_parameters *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (params->mac && + (vif->wdev.iftype == NL80211_IFTYPE_AP) && + !is_broadcast_ether_addr(params->mac) && + !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) + return 0; + + ret = qtnf_cmd_send_del_sta(vif, params); + if (ret) + pr_err("VIF%u.%u: failed to delete STA %pM\n", + vif->mac->macid, vif->vifid, params->mac); + + return ret; +} + +static int +qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + int ret; + + cancel_delayed_work_sync(&mac->scan_timeout); + + mac->scan_req = request; + + ret = qtnf_cmd_send_scan(mac); + if (ret) { + pr_err("MAC%u: failed to start scan\n", mac->macid); + mac->scan_req = NULL; + goto out; + } + + pr_debug("MAC%u: scan started\n", mac->macid); + queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, + QTNF_SCAN_TIMEOUT_SEC * HZ); + +out: + return ret; +} + +static int +qtnf_connect(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_connect_params *sme) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) + return -EOPNOTSUPP; + + if (sme->auth_type == NL80211_AUTHTYPE_SAE && + !(sme->flags & CONNECT_REQ_EXTERNAL_AUTH_SUPPORT)) { + pr_err("can not offload authentication to userspace\n"); + return -EOPNOTSUPP; + } + + if (sme->bssid) + ether_addr_copy(vif->bssid, sme->bssid); + else + eth_zero_addr(vif->bssid); + + ret = qtnf_cmd_send_connect(vif, sme); + if (ret) + pr_err("VIF%u.%u: failed to connect\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +static int +qtnf_external_auth(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_external_auth_params *auth) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (vif->wdev.iftype == NL80211_IFTYPE_STATION && + !ether_addr_equal(vif->bssid, auth->bssid)) + pr_warn("unexpected bssid: %pM", auth->bssid); + + ret = qtnf_cmd_send_external_auth(vif, auth); + if (ret) + pr_err("VIF%u.%u: failed to report external auth\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +static int +qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, + u16 reason_code) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret = 0; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + return -EFAULT; + } + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) + return -EOPNOTSUPP; + + ret = qtnf_cmd_send_disconnect(vif, reason_code); + if (ret) + pr_err("VIF%u.%u: failed to disconnect\n", + mac->macid, vif->vifid); + + if (vif->wdev.connected) { + netif_carrier_off(vif->netdev); + cfg80211_disconnected(vif->netdev, reason_code, + NULL, 0, true, GFP_KERNEL); + } + + return ret; +} + +static int +qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, + int idx, struct survey_info *survey) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct ieee80211_supported_band *sband; + const struct cfg80211_chan_def *chandef = wdev_chandef(wdev, 0); + struct ieee80211_channel *chan; + int ret; + + sband = wiphy->bands[NL80211_BAND_2GHZ]; + if (sband && idx >= sband->n_channels) { + idx -= sband->n_channels; + sband = NULL; + } + + if (!sband) + sband = wiphy->bands[NL80211_BAND_5GHZ]; + + if (!sband || idx >= sband->n_channels) + return -ENOENT; + + chan = &sband->channels[idx]; + survey->channel = chan; + survey->filled = 0x0; + + if (chandef && chan == chandef->chan) + survey->filled = SURVEY_INFO_IN_USE; + + ret = qtnf_cmd_get_chan_stats(mac, chan->center_freq, survey); + if (ret) + pr_debug("failed to get chan(%d) stats from card\n", + chan->hw_value); + + return ret; +} + +static int +qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, + unsigned int link_id, struct cfg80211_chan_def *chandef) +{ + struct net_device *ndev = wdev->netdev; + struct qtnf_vif *vif; + int ret; + + if (!ndev) + return -ENODEV; + + vif = qtnf_netdev_get_priv(wdev->netdev); + + ret = qtnf_cmd_get_channel(vif, chandef); + if (ret) { + pr_err("%s: failed to get channel: %d\n", ndev->name, ret); + ret = -ENODATA; + goto out; + } + + if (!cfg80211_chandef_valid(chandef)) { + pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", + ndev->name, chandef->chan->center_freq, + chandef->center_freq1, chandef->center_freq2, + chandef->width); + ret = -ENODATA; + goto out; + } + +out: + return ret; +} + +static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_csa_settings *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, + params->chandef.chan->hw_value, params->count, + params->radar_required, params->block_tx); + + if (!cfg80211_chandef_valid(¶ms->chandef)) { + pr_err("%s: invalid channel\n", dev->name); + return -EINVAL; + } + + ret = qtnf_cmd_send_chan_switch(vif, params); + if (ret) + pr_warn("%s: failed to switch to channel (%u)\n", + dev->name, params->chandef.chan->hw_value); + + return ret; +} + +static int qtnf_start_radar_detection(struct wiphy *wiphy, + struct net_device *ndev, + struct cfg80211_chan_def *chandef, + u32 cac_time_ms) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + int ret; + + if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) + return -ENOTSUPP; + + ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); + if (ret) + pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); + + return ret; +} + +static int qtnf_set_mac_acl(struct wiphy *wiphy, + struct net_device *dev, + const struct cfg80211_acl_data *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_set_mac_acl(vif, params); + if (ret) + pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); + + return ret; +} + +static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, + bool enabled, int timeout) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : + QLINK_PM_OFF, timeout); + if (ret) + pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); + + return ret; +} + +static int qtnf_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + int *dbm) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); + int ret; + + ret = qtnf_cmd_get_tx_power(vif, dbm); + if (ret) + pr_err("MAC%u: failed to get Tx power\n", vif->mac->macid); + + return ret; +} + +static int qtnf_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + enum nl80211_tx_power_setting type, int mbm) +{ + struct qtnf_vif *vif; + int ret; + + if (wdev) { + vif = qtnf_netdev_get_priv(wdev->netdev); + } else { + struct qtnf_wmac *mac = wiphy_priv(wiphy); + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", + mac->macid); + return -EFAULT; + } + } + + ret = qtnf_cmd_set_tx_power(vif, type, mbm); + if (ret) + pr_err("MAC%u: failed to set Tx power\n", vif->mac->macid); + + return ret; +} + +static int qtnf_update_owe_info(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_update_owe_info *owe_info) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (vif->wdev.iftype != NL80211_IFTYPE_AP) + return -EOPNOTSUPP; + + ret = qtnf_cmd_send_update_owe(vif, owe_info); + if (ret) + pr_err("VIF%u.%u: failed to update owe info\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +#ifdef CONFIG_PM +static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret = 0; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + ret = -EFAULT; + goto exit; + } + + if (!wowlan) { + pr_debug("WoWLAN triggers are not enabled\n"); + qtnf_virtual_intf_cleanup(vif->netdev); + goto exit; + } + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_wowlan_set(vif, wowlan); + if (ret) { + pr_err("MAC%u: failed to set WoWLAN triggers\n", + mac->macid); + goto exit; + } + +exit: + return ret; +} + +static int qtnf_resume(struct wiphy *wiphy) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret = 0; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + return -EFAULT; + } + + ret = qtnf_cmd_send_wowlan_set(vif, NULL); + if (ret) + pr_err("MAC%u: failed to reset WoWLAN triggers\n", + mac->macid); + + return ret; +} + +static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_bus *bus = mac->bus; + + device_set_wakeup_enable(bus->dev, enabled); +} +#endif + +static struct cfg80211_ops qtn_cfg80211_ops = { + .add_virtual_intf = qtnf_add_virtual_intf, + .change_virtual_intf = qtnf_change_virtual_intf, + .del_virtual_intf = qtnf_del_virtual_intf, + .start_ap = qtnf_start_ap, + .change_beacon = qtnf_change_beacon, + .stop_ap = qtnf_stop_ap, + .set_wiphy_params = qtnf_set_wiphy_params, + .update_mgmt_frame_registrations = + qtnf_update_mgmt_frame_registrations, + .mgmt_tx = qtnf_mgmt_tx, + .change_station = qtnf_change_station, + .del_station = qtnf_del_station, + .get_station = qtnf_get_station, + .dump_station = qtnf_dump_station, + .add_key = qtnf_add_key, + .del_key = qtnf_del_key, + .set_default_key = qtnf_set_default_key, + .set_default_mgmt_key = qtnf_set_default_mgmt_key, + .scan = qtnf_scan, + .connect = qtnf_connect, + .external_auth = qtnf_external_auth, + .disconnect = qtnf_disconnect, + .dump_survey = qtnf_dump_survey, + .get_channel = qtnf_get_channel, + .channel_switch = qtnf_channel_switch, + .start_radar_detection = qtnf_start_radar_detection, + .set_mac_acl = qtnf_set_mac_acl, + .set_power_mgmt = qtnf_set_power_mgmt, + .get_tx_power = qtnf_get_tx_power, + .set_tx_power = qtnf_set_tx_power, + .update_owe_info = qtnf_update_owe_info, +#ifdef CONFIG_PM + .suspend = qtnf_suspend, + .resume = qtnf_resume, + .set_wakeup = qtnf_set_wakeup, +#endif +}; + +static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *req) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + enum nl80211_band band; + int ret; + + pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, + req->alpha2[0], req->alpha2[1]); + + ret = qtnf_cmd_reg_notify(mac, req, qtnf_slave_radar_get(), + qtnf_dfs_offload_get()); + if (ret) { + pr_err("MAC%u: failed to update region to %c%c: %d\n", + mac->macid, req->alpha2[0], req->alpha2[1], ret); + return; + } + + for (band = 0; band < NUM_NL80211_BANDS; ++band) { + if (!wiphy->bands[band]) + continue; + + ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); + if (ret) + pr_err("MAC%u: failed to update band %u\n", + mac->macid, band); + } +} + +struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus, + struct platform_device *pdev) +{ + struct wiphy *wiphy; + + if (qtnf_dfs_offload_get() && + qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_DFS_OFFLOAD)) + qtn_cfg80211_ops.start_radar_detection = NULL; + + if (!qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_PWR_MGMT)) + qtn_cfg80211_ops.set_power_mgmt = NULL; + + wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); + if (!wiphy) + return NULL; + + if (pdev) + set_wiphy_dev(wiphy, &pdev->dev); + else + set_wiphy_dev(wiphy, bus->dev); + + return wiphy; +} + +static int +qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) +{ + struct ieee80211_iface_combination *if_comb; + size_t n_if_comb; + u16 interface_modes = 0; + size_t i, j; + + if_comb = mac_info->if_comb; + n_if_comb = mac_info->n_if_comb; + + if (!if_comb || !n_if_comb) + return -ENOENT; + + for (i = 0; i < n_if_comb; i++) { + if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; + + for (j = 0; j < if_comb[i].n_limits; j++) + interface_modes |= if_comb[i].limits[j].types; + } + + wiphy->iface_combinations = if_comb; + wiphy->n_iface_combinations = n_if_comb; + wiphy->interface_modes = interface_modes; + + return 0; +} + +int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + struct qtnf_mac_info *macinfo = &mac->macinfo; + int ret; + bool regdomain_is_known; + + if (!wiphy) { + pr_err("invalid wiphy pointer\n"); + return -EFAULT; + } + + wiphy->frag_threshold = macinfo->frag_thr; + wiphy->rts_threshold = macinfo->rts_thr; + wiphy->retry_short = macinfo->sretry_limit; + wiphy->retry_long = macinfo->lretry_limit; + wiphy->coverage_class = macinfo->coverage_class; + + wiphy->max_scan_ssids = + (macinfo->max_scan_ssids) ? macinfo->max_scan_ssids : 1; + wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; + wiphy->mgmt_stypes = qtnf_mgmt_stypes; + wiphy->max_remain_on_channel_duration = 5000; + wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; + wiphy->max_num_csa_counters = 2; + + ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); + if (ret) + goto out; + + /* Initialize cipher suits */ + wiphy->cipher_suites = qtnf_cipher_suites; + wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | + WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | + WIPHY_FLAG_AP_UAPSD | + WIPHY_FLAG_HAS_CHANNEL_SWITCH | + WIPHY_FLAG_4ADDR_STATION | + WIPHY_FLAG_NETNS_OK; + wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + + if (qtnf_dfs_offload_get() && + qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_DFS_OFFLOAD)) + wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SCAN_DWELL)) + wiphy_ext_feature_set(wiphy, + NL80211_EXT_FEATURE_SET_SCAN_DWELL); + + wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; + + wiphy->available_antennas_tx = macinfo->num_tx_chain; + wiphy->available_antennas_rx = macinfo->num_rx_chain; + + wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; + wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; + wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; + + ether_addr_copy(wiphy->perm_addr, mac->macaddr); + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_STA_INACT_TIMEOUT)) + wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR)) + wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; + + if (!qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_OBSS_SCAN)) + wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SAE)) + wiphy->features |= NL80211_FEATURE_SAE; + +#ifdef CONFIG_PM + if (macinfo->wowlan) + wiphy->wowlan = macinfo->wowlan; +#endif + + regdomain_is_known = isalpha(mac->rd->alpha2[0]) && + isalpha(mac->rd->alpha2[1]); + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_REG_UPDATE)) { + wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; + + if (mac->rd->alpha2[0] == '9' && mac->rd->alpha2[1] == '9') { + wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | + REGULATORY_STRICT_REG; + wiphy_apply_custom_regulatory(wiphy, mac->rd); + } else if (regdomain_is_known) { + wiphy->regulatory_flags |= REGULATORY_STRICT_REG; + } + } else { + wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; + } + + if (mac->macinfo.extended_capabilities_len) { + wiphy->extended_capabilities = + mac->macinfo.extended_capabilities; + wiphy->extended_capabilities_mask = + mac->macinfo.extended_capabilities_mask; + wiphy->extended_capabilities_len = + mac->macinfo.extended_capabilities_len; + } + + strscpy(wiphy->fw_version, hw_info->fw_version, + sizeof(wiphy->fw_version)); + wiphy->hw_version = hw_info->hw_version; + + ret = wiphy_register(wiphy); + if (ret < 0) + goto out; + + if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) + ret = regulatory_set_wiphy_regd(wiphy, mac->rd); + else if (regdomain_is_known) + ret = regulatory_hint(wiphy, mac->rd->alpha2); + +out: + return ret; +} + +void qtnf_netdev_updown(struct net_device *ndev, bool up) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + + if (qtnf_cmd_send_updown_intf(vif, up)) + pr_err("failed to send %s command to VIF%u.%u\n", + up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); +} + +void qtnf_virtual_intf_cleanup(struct net_device *ndev) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); + + if (vif->wdev.iftype == NL80211_IFTYPE_STATION) + qtnf_disconnect(vif->wdev.wiphy, ndev, + WLAN_REASON_DEAUTH_LEAVING); + + qtnf_scan_done(mac, true); +} + +void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) +{ + if (vif->wdev.iftype == NL80211_IFTYPE_STATION) + cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, + NULL, 0, 1, GFP_KERNEL); + + cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); +} + +void qtnf_band_init_rates(struct ieee80211_supported_band *band) +{ + switch (band->band) { + case NL80211_BAND_2GHZ: + band->bitrates = qtnf_rates_2g; + band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); + break; + case NL80211_BAND_5GHZ: + band->bitrates = qtnf_rates_5g; + band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); + break; + default: + band->bitrates = NULL; + band->n_bitrates = 0; + break; + } +} |