diff options
Diffstat (limited to 'drivers/net/wireless/microchip/wilc1000/cfg80211.c')
| -rw-r--r-- | drivers/net/wireless/microchip/wilc1000/cfg80211.c | 1870 |
1 files changed, 1870 insertions, 0 deletions
diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c new file mode 100644 index 000000000..dd26f2086 --- /dev/null +++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c @@ -0,0 +1,1870 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. + * All rights reserved. + */ + +#include "cfg80211.h" + +#define GO_NEG_REQ 0x00 +#define GO_NEG_RSP 0x01 +#define GO_NEG_CONF 0x02 +#define P2P_INV_REQ 0x03 +#define P2P_INV_RSP 0x04 + +#define WILC_INVALID_CHANNEL 0 + +/* Operation at 2.4 GHz with channels 1-13 */ +#define WILC_WLAN_OPERATING_CLASS_2_4GHZ 0x51 + +static const struct ieee80211_txrx_stypes + wilc_wfi_cfg80211_mgmt_types[NUM_NL80211_IFTYPES] = { + [NL80211_IFTYPE_STATION] = { + .tx = 0xffff, + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, + [NL80211_IFTYPE_AP] = { + .tx = 0xffff, + .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | + BIT(IEEE80211_STYPE_DISASSOC >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4) | + BIT(IEEE80211_STYPE_DEAUTH >> 4) | + BIT(IEEE80211_STYPE_ACTION >> 4) + }, + [NL80211_IFTYPE_P2P_CLIENT] = { + .tx = 0xffff, + .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_DISASSOC >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4) | + BIT(IEEE80211_STYPE_DEAUTH >> 4) + } +}; + +#ifdef CONFIG_PM +static const struct wiphy_wowlan_support wowlan_support = { + .flags = WIPHY_WOWLAN_ANY +}; +#endif + +struct wilc_p2p_mgmt_data { + int size; + u8 *buff; +}; + +struct wilc_p2p_pub_act_frame { + u8 category; + u8 action; + u8 oui[3]; + u8 oui_type; + u8 oui_subtype; + u8 dialog_token; + u8 elem[]; +} __packed; + +struct wilc_vendor_specific_ie { + u8 tag_number; + u8 tag_len; + u8 oui[3]; + u8 oui_type; + u8 attr[]; +} __packed; + +struct wilc_attr_entry { + u8 attr_type; + __le16 attr_len; + u8 val[]; +} __packed; + +struct wilc_attr_oper_ch { + u8 attr_type; + __le16 attr_len; + u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; + u8 op_class; + u8 op_channel; +} __packed; + +struct wilc_attr_ch_list { + u8 attr_type; + __le16 attr_len; + u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; + u8 elem[]; +} __packed; + +struct wilc_ch_list_elem { + u8 op_class; + u8 no_of_channels; + u8 ch_list[]; +} __packed; + +static void cfg_scan_result(enum scan_event scan_event, + struct wilc_rcvd_net_info *info, void *user_void) +{ + struct wilc_priv *priv = user_void; + + if (!priv->cfg_scanning) + return; + + if (scan_event == SCAN_EVENT_NETWORK_FOUND) { + s32 freq; + struct ieee80211_channel *channel; + struct cfg80211_bss *bss; + struct wiphy *wiphy = priv->dev->ieee80211_ptr->wiphy; + + if (!wiphy || !info) + return; + + freq = ieee80211_channel_to_frequency((s32)info->ch, + NL80211_BAND_2GHZ); + channel = ieee80211_get_channel(wiphy, freq); + if (!channel) + return; + + bss = cfg80211_inform_bss_frame(wiphy, channel, info->mgmt, + info->frame_len, + (s32)info->rssi * 100, + GFP_KERNEL); + cfg80211_put_bss(wiphy, bss); + } else if (scan_event == SCAN_EVENT_DONE) { + mutex_lock(&priv->scan_req_lock); + + if (priv->scan_req) { + struct cfg80211_scan_info info = { + .aborted = false, + }; + + cfg80211_scan_done(priv->scan_req, &info); + priv->cfg_scanning = false; + priv->scan_req = NULL; + } + mutex_unlock(&priv->scan_req_lock); + } else if (scan_event == SCAN_EVENT_ABORTED) { + mutex_lock(&priv->scan_req_lock); + + if (priv->scan_req) { + struct cfg80211_scan_info info = { + .aborted = false, + }; + + cfg80211_scan_done(priv->scan_req, &info); + priv->cfg_scanning = false; + priv->scan_req = NULL; + } + mutex_unlock(&priv->scan_req_lock); + } +} + +static void cfg_connect_result(enum conn_event conn_disconn_evt, u8 mac_status, + void *priv_data) +{ + struct wilc_priv *priv = priv_data; + struct net_device *dev = priv->dev; + struct wilc_vif *vif = netdev_priv(dev); + struct wilc *wl = vif->wilc; + struct host_if_drv *wfi_drv = priv->hif_drv; + struct wilc_conn_info *conn_info = &wfi_drv->conn_info; + struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; + + vif->connecting = false; + + if (conn_disconn_evt == CONN_DISCONN_EVENT_CONN_RESP) { + u16 connect_status = conn_info->status; + + if (mac_status == WILC_MAC_STATUS_DISCONNECTED && + connect_status == WLAN_STATUS_SUCCESS) { + connect_status = WLAN_STATUS_UNSPECIFIED_FAILURE; + wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); + + if (vif->iftype != WILC_CLIENT_MODE) + wl->sta_ch = WILC_INVALID_CHANNEL; + + netdev_err(dev, "Unspecified failure\n"); + } + + if (connect_status == WLAN_STATUS_SUCCESS) + memcpy(priv->associated_bss, conn_info->bssid, + ETH_ALEN); + + cfg80211_ref_bss(wiphy, vif->bss); + cfg80211_connect_bss(dev, conn_info->bssid, vif->bss, + conn_info->req_ies, + conn_info->req_ies_len, + conn_info->resp_ies, + conn_info->resp_ies_len, + connect_status, GFP_KERNEL, + NL80211_TIMEOUT_UNSPECIFIED); + + vif->bss = NULL; + } else if (conn_disconn_evt == CONN_DISCONN_EVENT_DISCONN_NOTIF) { + u16 reason = 0; + + eth_zero_addr(priv->associated_bss); + wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); + + if (vif->iftype != WILC_CLIENT_MODE) { + wl->sta_ch = WILC_INVALID_CHANNEL; + } else { + if (wfi_drv->ifc_up) + reason = 3; + else + reason = 1; + } + + cfg80211_disconnected(dev, reason, NULL, 0, false, GFP_KERNEL); + } +} + +struct wilc_vif *wilc_get_wl_to_vif(struct wilc *wl) +{ + struct wilc_vif *vif; + + vif = list_first_or_null_rcu(&wl->vif_list, typeof(*vif), list); + if (!vif) + return ERR_PTR(-EINVAL); + + return vif; +} + +static int set_channel(struct wiphy *wiphy, + struct cfg80211_chan_def *chandef) +{ + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif; + u32 channelnum; + int result; + int srcu_idx; + + srcu_idx = srcu_read_lock(&wl->srcu); + vif = wilc_get_wl_to_vif(wl); + if (IS_ERR(vif)) { + srcu_read_unlock(&wl->srcu, srcu_idx); + return PTR_ERR(vif); + } + + channelnum = ieee80211_frequency_to_channel(chandef->chan->center_freq); + + wl->op_ch = channelnum; + result = wilc_set_mac_chnl_num(vif, channelnum); + if (result) + netdev_err(vif->ndev, "Error in setting channel\n"); + + srcu_read_unlock(&wl->srcu, srcu_idx); + return result; +} + +static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) +{ + struct wilc_vif *vif = netdev_priv(request->wdev->netdev); + struct wilc_priv *priv = &vif->priv; + u32 i; + int ret = 0; + u8 scan_ch_list[WILC_MAX_NUM_SCANNED_CH]; + u8 scan_type; + + if (request->n_channels > WILC_MAX_NUM_SCANNED_CH) { + netdev_err(vif->ndev, "Requested scanned channels over\n"); + return -EINVAL; + } + + priv->scan_req = request; + priv->cfg_scanning = true; + for (i = 0; i < request->n_channels; i++) { + u16 freq = request->channels[i]->center_freq; + + scan_ch_list[i] = ieee80211_frequency_to_channel(freq); + } + + if (request->n_ssids) + scan_type = WILC_FW_ACTIVE_SCAN; + else + scan_type = WILC_FW_PASSIVE_SCAN; + + ret = wilc_scan(vif, WILC_FW_USER_SCAN, scan_type, scan_ch_list, + request->n_channels, cfg_scan_result, (void *)priv, + request); + + if (ret) { + priv->scan_req = NULL; + priv->cfg_scanning = false; + } + + return ret; +} + +static int connect(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_connect_params *sme) +{ + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + struct host_if_drv *wfi_drv = priv->hif_drv; + int ret; + u32 i; + u8 security = WILC_FW_SEC_NO; + enum authtype auth_type = WILC_FW_AUTH_ANY; + u32 cipher_group; + struct cfg80211_bss *bss; + void *join_params; + u8 ch; + + vif->connecting = true; + + memset(priv->wep_key, 0, sizeof(priv->wep_key)); + memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); + + cipher_group = sme->crypto.cipher_group; + if (cipher_group != 0) { + if (cipher_group == WLAN_CIPHER_SUITE_WEP40) { + security = WILC_FW_SEC_WEP; + + priv->wep_key_len[sme->key_idx] = sme->key_len; + memcpy(priv->wep_key[sme->key_idx], sme->key, + sme->key_len); + + wilc_set_wep_default_keyid(vif, sme->key_idx); + wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len, + sme->key_idx); + } else if (cipher_group == WLAN_CIPHER_SUITE_WEP104) { + security = WILC_FW_SEC_WEP_EXTENDED; + + priv->wep_key_len[sme->key_idx] = sme->key_len; + memcpy(priv->wep_key[sme->key_idx], sme->key, + sme->key_len); + + wilc_set_wep_default_keyid(vif, sme->key_idx); + wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len, + sme->key_idx); + } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) { + if (cipher_group == WLAN_CIPHER_SUITE_TKIP) + security = WILC_FW_SEC_WPA2_TKIP; + else + security = WILC_FW_SEC_WPA2_AES; + } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) { + if (cipher_group == WLAN_CIPHER_SUITE_TKIP) + security = WILC_FW_SEC_WPA_TKIP; + else + security = WILC_FW_SEC_WPA_AES; + } else { + ret = -ENOTSUPP; + netdev_err(dev, "%s: Unsupported cipher\n", + __func__); + goto out_error; + } + } + + if ((sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) || + (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)) { + for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) { + u32 ciphers_pairwise = sme->crypto.ciphers_pairwise[i]; + + if (ciphers_pairwise == WLAN_CIPHER_SUITE_TKIP) + security |= WILC_FW_TKIP; + else + security |= WILC_FW_AES; + } + } + + switch (sme->auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + auth_type = WILC_FW_AUTH_OPEN_SYSTEM; + break; + + case NL80211_AUTHTYPE_SHARED_KEY: + auth_type = WILC_FW_AUTH_SHARED_KEY; + break; + + default: + break; + } + + if (sme->crypto.n_akm_suites) { + if (sme->crypto.akm_suites[0] == WLAN_AKM_SUITE_8021X) + auth_type = WILC_FW_AUTH_IEEE8021; + } + + if (wfi_drv->usr_scan_req.scan_result) { + netdev_err(vif->ndev, "%s: Scan in progress\n", __func__); + ret = -EBUSY; + goto out_error; + } + + bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, sme->ssid, + sme->ssid_len, IEEE80211_BSS_TYPE_ANY, + IEEE80211_PRIVACY(sme->privacy)); + if (!bss) { + ret = -EINVAL; + goto out_error; + } + + if (ether_addr_equal_unaligned(vif->bssid, bss->bssid)) { + ret = -EALREADY; + goto out_put_bss; + } + + join_params = wilc_parse_join_bss_param(bss, &sme->crypto); + if (!join_params) { + netdev_err(dev, "%s: failed to construct join param\n", + __func__); + ret = -EINVAL; + goto out_put_bss; + } + + ch = ieee80211_frequency_to_channel(bss->channel->center_freq); + vif->wilc->op_ch = ch; + if (vif->iftype != WILC_CLIENT_MODE) + vif->wilc->sta_ch = ch; + + wilc_wlan_set_bssid(dev, bss->bssid, WILC_STATION_MODE); + + wfi_drv->conn_info.security = security; + wfi_drv->conn_info.auth_type = auth_type; + wfi_drv->conn_info.ch = ch; + wfi_drv->conn_info.conn_result = cfg_connect_result; + wfi_drv->conn_info.arg = priv; + wfi_drv->conn_info.param = join_params; + + ret = wilc_set_join_req(vif, bss->bssid, sme->ie, sme->ie_len); + if (ret) { + netdev_err(dev, "wilc_set_join_req(): Error\n"); + ret = -ENOENT; + if (vif->iftype != WILC_CLIENT_MODE) + vif->wilc->sta_ch = WILC_INVALID_CHANNEL; + wilc_wlan_set_bssid(dev, NULL, WILC_STATION_MODE); + wfi_drv->conn_info.conn_result = NULL; + kfree(join_params); + goto out_put_bss; + } + kfree(join_params); + vif->bss = bss; + cfg80211_put_bss(wiphy, bss); + return 0; + +out_put_bss: + cfg80211_put_bss(wiphy, bss); + +out_error: + vif->connecting = false; + return ret; +} + +static int disconnect(struct wiphy *wiphy, struct net_device *dev, + u16 reason_code) +{ + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + struct wilc *wilc = vif->wilc; + int ret; + + vif->connecting = false; + + if (!wilc) + return -EIO; + + if (wilc->close) { + /* already disconnected done */ + cfg80211_disconnected(dev, 0, NULL, 0, true, GFP_KERNEL); + return 0; + } + + if (vif->iftype != WILC_CLIENT_MODE) + wilc->sta_ch = WILC_INVALID_CHANNEL; + wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); + + priv->hif_drv->p2p_timeout = 0; + + ret = wilc_disconnect(vif); + if (ret != 0) { + netdev_err(priv->dev, "Error in disconnecting\n"); + ret = -EINVAL; + } + + vif->bss = NULL; + + return ret; +} + +static inline void wilc_wfi_cfg_copy_wep_info(struct wilc_priv *priv, + u8 key_index, + struct key_params *params) +{ + priv->wep_key_len[key_index] = params->key_len; + memcpy(priv->wep_key[key_index], params->key, params->key_len); +} + +static int wilc_wfi_cfg_allocate_wpa_entry(struct wilc_priv *priv, u8 idx) +{ + if (!priv->wilc_gtk[idx]) { + priv->wilc_gtk[idx] = kzalloc(sizeof(*priv->wilc_gtk[idx]), + GFP_KERNEL); + if (!priv->wilc_gtk[idx]) + return -ENOMEM; + } + + if (!priv->wilc_ptk[idx]) { + priv->wilc_ptk[idx] = kzalloc(sizeof(*priv->wilc_ptk[idx]), + GFP_KERNEL); + if (!priv->wilc_ptk[idx]) + return -ENOMEM; + } + + return 0; +} + +static int wilc_wfi_cfg_copy_wpa_info(struct wilc_wfi_key *key_info, + struct key_params *params) +{ + kfree(key_info->key); + + key_info->key = kmemdup(params->key, params->key_len, GFP_KERNEL); + if (!key_info->key) + return -ENOMEM; + + kfree(key_info->seq); + + if (params->seq_len > 0) { + key_info->seq = kmemdup(params->seq, params->seq_len, + GFP_KERNEL); + if (!key_info->seq) + return -ENOMEM; + } + + key_info->cipher = params->cipher; + key_info->key_len = params->key_len; + key_info->seq_len = params->seq_len; + + return 0; +} + +static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, + bool pairwise, const u8 *mac_addr, struct key_params *params) + +{ + int ret = 0, keylen = params->key_len; + const u8 *rx_mic = NULL; + const u8 *tx_mic = NULL; + u8 mode = WILC_FW_SEC_NO; + u8 op_mode; + struct wilc_vif *vif = netdev_priv(netdev); + struct wilc_priv *priv = &vif->priv; + + switch (params->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + if (priv->wdev.iftype == NL80211_IFTYPE_AP) { + wilc_wfi_cfg_copy_wep_info(priv, key_index, params); + + if (params->cipher == WLAN_CIPHER_SUITE_WEP40) + mode = WILC_FW_SEC_WEP; + else + mode = WILC_FW_SEC_WEP_EXTENDED; + + ret = wilc_add_wep_key_bss_ap(vif, params->key, + params->key_len, + key_index, mode, + WILC_FW_AUTH_OPEN_SYSTEM); + break; + } + if (memcmp(params->key, priv->wep_key[key_index], + params->key_len)) { + wilc_wfi_cfg_copy_wep_info(priv, key_index, params); + + ret = wilc_add_wep_key_bss_sta(vif, params->key, + params->key_len, + key_index); + } + + break; + + case WLAN_CIPHER_SUITE_TKIP: + case WLAN_CIPHER_SUITE_CCMP: + if (priv->wdev.iftype == NL80211_IFTYPE_AP || + priv->wdev.iftype == NL80211_IFTYPE_P2P_GO) { + struct wilc_wfi_key *key; + + ret = wilc_wfi_cfg_allocate_wpa_entry(priv, key_index); + if (ret) + return -ENOMEM; + + if (params->key_len > 16 && + params->cipher == WLAN_CIPHER_SUITE_TKIP) { + tx_mic = params->key + 24; + rx_mic = params->key + 16; + keylen = params->key_len - 16; + } + + if (!pairwise) { + if (params->cipher == WLAN_CIPHER_SUITE_TKIP) + mode = WILC_FW_SEC_WPA_TKIP; + else + mode = WILC_FW_SEC_WPA2_AES; + + priv->wilc_groupkey = mode; + + key = priv->wilc_gtk[key_index]; + } else { + if (params->cipher == WLAN_CIPHER_SUITE_TKIP) + mode = WILC_FW_SEC_WPA_TKIP; + else + mode = priv->wilc_groupkey | WILC_FW_AES; + + key = priv->wilc_ptk[key_index]; + } + ret = wilc_wfi_cfg_copy_wpa_info(key, params); + if (ret) + return -ENOMEM; + + op_mode = WILC_AP_MODE; + } else { + if (params->key_len > 16 && + params->cipher == WLAN_CIPHER_SUITE_TKIP) { + rx_mic = params->key + 24; + tx_mic = params->key + 16; + keylen = params->key_len - 16; + } + + op_mode = WILC_STATION_MODE; + } + + if (!pairwise) + ret = wilc_add_rx_gtk(vif, params->key, keylen, + key_index, params->seq_len, + params->seq, rx_mic, tx_mic, + op_mode, mode); + else + ret = wilc_add_ptk(vif, params->key, keylen, mac_addr, + rx_mic, tx_mic, op_mode, mode, + key_index); + + break; + + default: + netdev_err(netdev, "%s: Unsupported cipher\n", __func__); + ret = -ENOTSUPP; + } + + return ret; +} + +static int del_key(struct wiphy *wiphy, struct net_device *netdev, + u8 key_index, + bool pairwise, + const u8 *mac_addr) +{ + struct wilc_vif *vif = netdev_priv(netdev); + struct wilc_priv *priv = &vif->priv; + + if (priv->wilc_gtk[key_index]) { + kfree(priv->wilc_gtk[key_index]->key); + priv->wilc_gtk[key_index]->key = NULL; + kfree(priv->wilc_gtk[key_index]->seq); + priv->wilc_gtk[key_index]->seq = NULL; + + kfree(priv->wilc_gtk[key_index]); + priv->wilc_gtk[key_index] = NULL; + } + + if (priv->wilc_ptk[key_index]) { + kfree(priv->wilc_ptk[key_index]->key); + priv->wilc_ptk[key_index]->key = NULL; + kfree(priv->wilc_ptk[key_index]->seq); + priv->wilc_ptk[key_index]->seq = NULL; + kfree(priv->wilc_ptk[key_index]); + priv->wilc_ptk[key_index] = NULL; + } + + if (key_index <= 3 && priv->wep_key_len[key_index]) { + memset(priv->wep_key[key_index], 0, + priv->wep_key_len[key_index]); + priv->wep_key_len[key_index] = 0; + wilc_remove_wep_key(vif, key_index); + } + + return 0; +} + +static int get_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, + bool pairwise, const u8 *mac_addr, void *cookie, + void (*callback)(void *cookie, struct key_params *)) +{ + struct wilc_vif *vif = netdev_priv(netdev); + struct wilc_priv *priv = &vif->priv; + struct key_params key_params; + + if (!pairwise) { + key_params.key = priv->wilc_gtk[key_index]->key; + key_params.cipher = priv->wilc_gtk[key_index]->cipher; + key_params.key_len = priv->wilc_gtk[key_index]->key_len; + key_params.seq = priv->wilc_gtk[key_index]->seq; + key_params.seq_len = priv->wilc_gtk[key_index]->seq_len; + } else { + key_params.key = priv->wilc_ptk[key_index]->key; + key_params.cipher = priv->wilc_ptk[key_index]->cipher; + key_params.key_len = priv->wilc_ptk[key_index]->key_len; + key_params.seq = priv->wilc_ptk[key_index]->seq; + key_params.seq_len = priv->wilc_ptk[key_index]->seq_len; + } + + callback(cookie, &key_params); + + return 0; +} + +static int set_default_key(struct wiphy *wiphy, struct net_device *netdev, + u8 key_index, bool unicast, bool multicast) +{ + struct wilc_vif *vif = netdev_priv(netdev); + + wilc_set_wep_default_keyid(vif, key_index); + + return 0; +} + +static int get_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_info *sinfo) +{ + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + u32 i = 0; + u32 associatedsta = ~0; + u32 inactive_time = 0; + + if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { + for (i = 0; i < NUM_STA_ASSOCIATED; i++) { + if (!(memcmp(mac, + priv->assoc_stainfo.sta_associated_bss[i], + ETH_ALEN))) { + associatedsta = i; + break; + } + } + + if (associatedsta == ~0) { + netdev_err(dev, "sta required is not associated\n"); + return -ENOENT; + } + + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME); + + wilc_get_inactive_time(vif, mac, &inactive_time); + sinfo->inactive_time = 1000 * inactive_time; + } else if (vif->iftype == WILC_STATION_MODE) { + struct rf_info stats; + + wilc_get_statistics(vif, &stats); + + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL) | + BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | + BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | + BIT_ULL(NL80211_STA_INFO_TX_FAILED) | + BIT_ULL(NL80211_STA_INFO_TX_BITRATE); + + sinfo->signal = stats.rssi; + sinfo->rx_packets = stats.rx_cnt; + sinfo->tx_packets = stats.tx_cnt + stats.tx_fail_cnt; + sinfo->tx_failed = stats.tx_fail_cnt; + sinfo->txrate.legacy = stats.link_speed * 10; + + if (stats.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH && + stats.link_speed != DEFAULT_LINK_SPEED) + wilc_enable_tcp_ack_filter(vif, true); + else if (stats.link_speed != DEFAULT_LINK_SPEED) + wilc_enable_tcp_ack_filter(vif, false); + } + return 0; +} + +static int change_bss(struct wiphy *wiphy, struct net_device *dev, + struct bss_parameters *params) +{ + return 0; +} + +static int set_wiphy_params(struct wiphy *wiphy, u32 changed) +{ + int ret = -EINVAL; + struct cfg_param_attr cfg_param_val; + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif; + struct wilc_priv *priv; + int srcu_idx; + + srcu_idx = srcu_read_lock(&wl->srcu); + vif = wilc_get_wl_to_vif(wl); + if (IS_ERR(vif)) + goto out; + + priv = &vif->priv; + cfg_param_val.flag = 0; + + if (changed & WIPHY_PARAM_RETRY_SHORT) { + netdev_dbg(vif->ndev, + "Setting WIPHY_PARAM_RETRY_SHORT %d\n", + wiphy->retry_short); + cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_SHORT; + cfg_param_val.short_retry_limit = wiphy->retry_short; + } + if (changed & WIPHY_PARAM_RETRY_LONG) { + netdev_dbg(vif->ndev, + "Setting WIPHY_PARAM_RETRY_LONG %d\n", + wiphy->retry_long); + cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_LONG; + cfg_param_val.long_retry_limit = wiphy->retry_long; + } + if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { + if (wiphy->frag_threshold > 255 && + wiphy->frag_threshold < 7937) { + netdev_dbg(vif->ndev, + "Setting WIPHY_PARAM_FRAG_THRESHOLD %d\n", + wiphy->frag_threshold); + cfg_param_val.flag |= WILC_CFG_PARAM_FRAG_THRESHOLD; + cfg_param_val.frag_threshold = wiphy->frag_threshold; + } else { + netdev_err(vif->ndev, + "Fragmentation threshold out of range\n"); + goto out; + } + } + + if (changed & WIPHY_PARAM_RTS_THRESHOLD) { + if (wiphy->rts_threshold > 255) { + netdev_dbg(vif->ndev, + "Setting WIPHY_PARAM_RTS_THRESHOLD %d\n", + wiphy->rts_threshold); + cfg_param_val.flag |= WILC_CFG_PARAM_RTS_THRESHOLD; + cfg_param_val.rts_threshold = wiphy->rts_threshold; + } else { + netdev_err(vif->ndev, "RTS threshold out of range\n"); + goto out; + } + } + + ret = wilc_hif_set_cfg(vif, &cfg_param_val); + if (ret) + netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n"); + +out: + srcu_read_unlock(&wl->srcu, srcu_idx); + return ret; +} + +static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_pmksa *pmksa) +{ + struct wilc_vif *vif = netdev_priv(netdev); + struct wilc_priv *priv = &vif->priv; + u32 i; + int ret = 0; + u8 flag = 0; + + for (i = 0; i < priv->pmkid_list.numpmkid; i++) { + if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, + ETH_ALEN)) { + flag = PMKID_FOUND; + break; + } + } + if (i < WILC_MAX_NUM_PMKIDS) { + memcpy(priv->pmkid_list.pmkidlist[i].bssid, pmksa->bssid, + ETH_ALEN); + memcpy(priv->pmkid_list.pmkidlist[i].pmkid, pmksa->pmkid, + WLAN_PMKID_LEN); + if (!(flag == PMKID_FOUND)) + priv->pmkid_list.numpmkid++; + } else { + netdev_err(netdev, "Invalid PMKID index\n"); + ret = -EINVAL; + } + + if (!ret) + ret = wilc_set_pmkid_info(vif, &priv->pmkid_list); + + return ret; +} + +static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev, + struct cfg80211_pmksa *pmksa) +{ + u32 i; + struct wilc_vif *vif = netdev_priv(netdev); + struct wilc_priv *priv = &vif->priv; + + for (i = 0; i < priv->pmkid_list.numpmkid; i++) { + if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, + ETH_ALEN)) { + memset(&priv->pmkid_list.pmkidlist[i], 0, + sizeof(struct wilc_pmkid)); + break; + } + } + + if (i == priv->pmkid_list.numpmkid) + return -EINVAL; + + for (; i < (priv->pmkid_list.numpmkid - 1); i++) { + memcpy(priv->pmkid_list.pmkidlist[i].bssid, + priv->pmkid_list.pmkidlist[i + 1].bssid, + ETH_ALEN); + memcpy(priv->pmkid_list.pmkidlist[i].pmkid, + priv->pmkid_list.pmkidlist[i + 1].pmkid, + WLAN_PMKID_LEN); + } + priv->pmkid_list.numpmkid--; + + return 0; +} + +static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) +{ + struct wilc_vif *vif = netdev_priv(netdev); + + memset(&vif->priv.pmkid_list, 0, sizeof(struct wilc_pmkid_attr)); + + return 0; +} + +static inline void wilc_wfi_cfg_parse_ch_attr(u8 *buf, u32 len, u8 sta_ch) +{ + struct wilc_attr_entry *e; + struct wilc_attr_ch_list *ch_list; + struct wilc_attr_oper_ch *op_ch; + u32 index = 0; + u8 ch_list_idx = 0; + u8 op_ch_idx = 0; + + if (sta_ch == WILC_INVALID_CHANNEL) + return; + + while (index + sizeof(*e) <= len) { + u16 attr_size; + + e = (struct wilc_attr_entry *)&buf[index]; + attr_size = le16_to_cpu(e->attr_len); + + if (index + sizeof(*e) + attr_size > len) + return; + + if (e->attr_type == IEEE80211_P2P_ATTR_CHANNEL_LIST && + attr_size >= (sizeof(struct wilc_attr_ch_list) - sizeof(*e))) + ch_list_idx = index; + else if (e->attr_type == IEEE80211_P2P_ATTR_OPER_CHANNEL && + attr_size == (sizeof(struct wilc_attr_oper_ch) - sizeof(*e))) + op_ch_idx = index; + + if (ch_list_idx && op_ch_idx) + break; + + index += sizeof(*e) + attr_size; + } + + if (ch_list_idx) { + unsigned int i; + u16 elem_size; + + ch_list = (struct wilc_attr_ch_list *)&buf[ch_list_idx]; + /* the number of bytes following the final 'elem' member */ + elem_size = le16_to_cpu(ch_list->attr_len) - + (sizeof(*ch_list) - sizeof(struct wilc_attr_entry)); + for (i = 0; i < elem_size;) { + struct wilc_ch_list_elem *e; + + e = (struct wilc_ch_list_elem *)(ch_list->elem + i); + + i += sizeof(*e); + if (i > elem_size) + break; + + i += e->no_of_channels; + if (i > elem_size) + break; + + if (e->op_class == WILC_WLAN_OPERATING_CLASS_2_4GHZ) { + memset(e->ch_list, sta_ch, e->no_of_channels); + break; + } + } + } + + if (op_ch_idx) { + op_ch = (struct wilc_attr_oper_ch *)&buf[op_ch_idx]; + op_ch->op_class = WILC_WLAN_OPERATING_CLASS_2_4GHZ; + op_ch->op_channel = sta_ch; + } +} + +void wilc_wfi_p2p_rx(struct wilc_vif *vif, u8 *buff, u32 size) +{ + struct wilc *wl = vif->wilc; + struct wilc_priv *priv = &vif->priv; + struct host_if_drv *wfi_drv = priv->hif_drv; + struct ieee80211_mgmt *mgmt; + struct wilc_vendor_specific_ie *p; + struct wilc_p2p_pub_act_frame *d; + int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); + const u8 *vendor_ie; + u32 header, pkt_offset; + s32 freq; + + header = get_unaligned_le32(buff - HOST_HDR_OFFSET); + pkt_offset = FIELD_GET(WILC_PKT_HDR_OFFSET_FIELD, header); + + if (pkt_offset & IS_MANAGMEMENT_CALLBACK) { + bool ack = false; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)buff; + + if (ieee80211_is_probe_resp(hdr->frame_control) || + pkt_offset & IS_MGMT_STATUS_SUCCES) + ack = true; + + cfg80211_mgmt_tx_status(&priv->wdev, priv->tx_cookie, buff, + size, ack, GFP_KERNEL); + return; + } + + freq = ieee80211_channel_to_frequency(wl->op_ch, NL80211_BAND_2GHZ); + + mgmt = (struct ieee80211_mgmt *)buff; + if (!ieee80211_is_action(mgmt->frame_control)) + goto out_rx_mgmt; + + if (priv->cfg_scanning && + time_after_eq(jiffies, (unsigned long)wfi_drv->p2p_timeout)) { + netdev_dbg(vif->ndev, "Receiving action wrong ch\n"); + return; + } + + if (!ieee80211_is_public_action((struct ieee80211_hdr *)buff, size)) + goto out_rx_mgmt; + + d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); + if (d->oui_subtype != GO_NEG_REQ && d->oui_subtype != GO_NEG_RSP && + d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) + goto out_rx_mgmt; + + vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, + buff + ie_offset, size - ie_offset); + if (!vendor_ie) + goto out_rx_mgmt; + + p = (struct wilc_vendor_specific_ie *)vendor_ie; + wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); + +out_rx_mgmt: + cfg80211_rx_mgmt(&priv->wdev, freq, 0, buff, size, 0); +} + +static void wilc_wfi_mgmt_tx_complete(void *priv, int status) +{ + struct wilc_p2p_mgmt_data *pv_data = priv; + + kfree(pv_data->buff); + kfree(pv_data); +} + +static void wilc_wfi_remain_on_channel_expired(void *data, u64 cookie) +{ + struct wilc_vif *vif = data; + struct wilc_priv *priv = &vif->priv; + struct wilc_wfi_p2p_listen_params *params = &priv->remain_on_ch_params; + + if (cookie != params->listen_cookie) + return; + + priv->p2p_listen_state = false; + + cfg80211_remain_on_channel_expired(&priv->wdev, params->listen_cookie, + params->listen_ch, GFP_KERNEL); +} + +static int remain_on_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct ieee80211_channel *chan, + unsigned int duration, u64 *cookie) +{ + int ret = 0; + struct wilc_vif *vif = netdev_priv(wdev->netdev); + struct wilc_priv *priv = &vif->priv; + u64 id; + + if (wdev->iftype == NL80211_IFTYPE_AP) { + netdev_dbg(vif->ndev, "Required while in AP mode\n"); + return ret; + } + + id = ++priv->inc_roc_cookie; + if (id == 0) + id = ++priv->inc_roc_cookie; + + ret = wilc_remain_on_channel(vif, id, duration, chan->hw_value, + wilc_wfi_remain_on_channel_expired, + (void *)vif); + if (ret) + return ret; + + vif->wilc->op_ch = chan->hw_value; + + priv->remain_on_ch_params.listen_ch = chan; + priv->remain_on_ch_params.listen_cookie = id; + *cookie = id; + priv->p2p_listen_state = true; + priv->remain_on_ch_params.listen_duration = duration; + + cfg80211_ready_on_channel(wdev, *cookie, chan, duration, GFP_KERNEL); + mod_timer(&vif->hif_drv->remain_on_ch_timer, + jiffies + msecs_to_jiffies(duration + 1000)); + + return ret; +} + +static int cancel_remain_on_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, + u64 cookie) +{ + struct wilc_vif *vif = netdev_priv(wdev->netdev); + struct wilc_priv *priv = &vif->priv; + + if (cookie != priv->remain_on_ch_params.listen_cookie) + return -ENOENT; + + return wilc_listen_state_expired(vif, cookie); +} + +static int mgmt_tx(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, + u64 *cookie) +{ + struct ieee80211_channel *chan = params->chan; + unsigned int wait = params->wait; + const u8 *buf = params->buf; + size_t len = params->len; + const struct ieee80211_mgmt *mgmt; + struct wilc_p2p_mgmt_data *mgmt_tx; + struct wilc_vif *vif = netdev_priv(wdev->netdev); + struct wilc_priv *priv = &vif->priv; + struct host_if_drv *wfi_drv = priv->hif_drv; + struct wilc_vendor_specific_ie *p; + struct wilc_p2p_pub_act_frame *d; + int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); + const u8 *vendor_ie; + int ret = 0; + + *cookie = prandom_u32(); + priv->tx_cookie = *cookie; + mgmt = (const struct ieee80211_mgmt *)buf; + + if (!ieee80211_is_mgmt(mgmt->frame_control)) + goto out; + + mgmt_tx = kmalloc(sizeof(*mgmt_tx), GFP_KERNEL); + if (!mgmt_tx) { + ret = -ENOMEM; + goto out; + } + + mgmt_tx->buff = kmemdup(buf, len, GFP_KERNEL); + if (!mgmt_tx->buff) { + ret = -ENOMEM; + kfree(mgmt_tx); + goto out; + } + + mgmt_tx->size = len; + + if (ieee80211_is_probe_resp(mgmt->frame_control)) { + wilc_set_mac_chnl_num(vif, chan->hw_value); + vif->wilc->op_ch = chan->hw_value; + goto out_txq_add_pkt; + } + + if (!ieee80211_is_public_action((struct ieee80211_hdr *)buf, len)) + goto out_set_timeout; + + d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); + if (d->oui_type != WLAN_OUI_TYPE_WFA_P2P || + d->oui_subtype != GO_NEG_CONF) { + wilc_set_mac_chnl_num(vif, chan->hw_value); + vif->wilc->op_ch = chan->hw_value; + } + + if (d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) + goto out_set_timeout; + + vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, + mgmt_tx->buff + ie_offset, + len - ie_offset); + if (!vendor_ie) + goto out_set_timeout; + + p = (struct wilc_vendor_specific_ie *)vendor_ie; + wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); + +out_set_timeout: + wfi_drv->p2p_timeout = (jiffies + msecs_to_jiffies(wait)); + +out_txq_add_pkt: + + wilc_wlan_txq_add_mgmt_pkt(wdev->netdev, mgmt_tx, + mgmt_tx->buff, mgmt_tx->size, + wilc_wfi_mgmt_tx_complete); + +out: + + return ret; +} + +static int mgmt_tx_cancel_wait(struct wiphy *wiphy, + struct wireless_dev *wdev, + u64 cookie) +{ + struct wilc_vif *vif = netdev_priv(wdev->netdev); + struct wilc_priv *priv = &vif->priv; + struct host_if_drv *wfi_drv = priv->hif_drv; + + wfi_drv->p2p_timeout = jiffies; + + if (!priv->p2p_listen_state) { + struct wilc_wfi_p2p_listen_params *params; + + params = &priv->remain_on_ch_params; + + cfg80211_remain_on_channel_expired(wdev, + params->listen_cookie, + params->listen_ch, + GFP_KERNEL); + } + + return 0; +} + +void wilc_update_mgmt_frame_registrations(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct mgmt_frame_regs *upd) +{ + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif = netdev_priv(wdev->netdev); + u32 presp_bit = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); + u32 action_bit = BIT(IEEE80211_STYPE_ACTION >> 4); + + if (wl->initialized) { + bool prev = vif->mgmt_reg_stypes & presp_bit; + bool now = upd->interface_stypes & presp_bit; + + if (now != prev) + wilc_frame_register(vif, IEEE80211_STYPE_PROBE_REQ, now); + + prev = vif->mgmt_reg_stypes & action_bit; + now = upd->interface_stypes & action_bit; + + if (now != prev) + wilc_frame_register(vif, IEEE80211_STYPE_ACTION, now); + } + + vif->mgmt_reg_stypes = + upd->interface_stypes & (presp_bit | action_bit); +} + +static int set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev, + s32 rssi_thold, u32 rssi_hyst) +{ + return 0; +} + +static int dump_station(struct wiphy *wiphy, struct net_device *dev, + int idx, u8 *mac, struct station_info *sinfo) +{ + struct wilc_vif *vif = netdev_priv(dev); + int ret; + + if (idx != 0) + return -ENOENT; + + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); + + ret = wilc_get_rssi(vif, &sinfo->signal); + if (ret) + return ret; + + memcpy(mac, vif->priv.associated_bss, ETH_ALEN); + return 0; +} + +static int set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, + bool enabled, int timeout) +{ + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + + if (!priv->hif_drv) + return -EIO; + + wilc_set_power_mgmt(vif, enabled, timeout); + + return 0; +} + +static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, + enum nl80211_iftype type, + struct vif_params *params) +{ + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + + switch (type) { + case NL80211_IFTYPE_STATION: + vif->connecting = false; + dev->ieee80211_ptr->iftype = type; + priv->wdev.iftype = type; + vif->monitor_flag = 0; + if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) + wilc_wfi_deinit_mon_interface(wl, true); + vif->iftype = WILC_STATION_MODE; + + if (wl->initialized) + wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), + WILC_STATION_MODE, vif->idx); + + memset(priv->assoc_stainfo.sta_associated_bss, 0, + WILC_MAX_NUM_STA * ETH_ALEN); + break; + + case NL80211_IFTYPE_P2P_CLIENT: + vif->connecting = false; + dev->ieee80211_ptr->iftype = type; + priv->wdev.iftype = type; + vif->monitor_flag = 0; + vif->iftype = WILC_CLIENT_MODE; + + if (wl->initialized) + wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), + WILC_STATION_MODE, vif->idx); + break; + + case NL80211_IFTYPE_AP: + dev->ieee80211_ptr->iftype = type; + priv->wdev.iftype = type; + vif->iftype = WILC_AP_MODE; + + if (wl->initialized) + wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), + WILC_AP_MODE, vif->idx); + break; + + case NL80211_IFTYPE_P2P_GO: + dev->ieee80211_ptr->iftype = type; + priv->wdev.iftype = type; + vif->iftype = WILC_GO_MODE; + + if (wl->initialized) + wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), + WILC_AP_MODE, vif->idx); + break; + + default: + netdev_err(dev, "Unknown interface type= %d\n", type); + return -EINVAL; + } + + return 0; +} + +static int start_ap(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_ap_settings *settings) +{ + struct wilc_vif *vif = netdev_priv(dev); + int ret; + + ret = set_channel(wiphy, &settings->chandef); + if (ret != 0) + netdev_err(dev, "Error in setting channel\n"); + + wilc_wlan_set_bssid(dev, dev->dev_addr, WILC_AP_MODE); + + return wilc_add_beacon(vif, settings->beacon_interval, + settings->dtim_period, &settings->beacon); +} + +static int change_beacon(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_beacon_data *beacon) +{ + struct wilc_vif *vif = netdev_priv(dev); + + return wilc_add_beacon(vif, 0, 0, beacon); +} + +static int stop_ap(struct wiphy *wiphy, struct net_device *dev) +{ + int ret; + struct wilc_vif *vif = netdev_priv(dev); + + wilc_wlan_set_bssid(dev, NULL, WILC_AP_MODE); + + ret = wilc_del_beacon(vif); + + if (ret) + netdev_err(dev, "Host delete beacon fail\n"); + + return ret; +} + +static int add_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_parameters *params) +{ + int ret = 0; + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + + if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { + memcpy(priv->assoc_stainfo.sta_associated_bss[params->aid], mac, + ETH_ALEN); + + ret = wilc_add_station(vif, mac, params); + if (ret) + netdev_err(dev, "Host add station fail\n"); + } + + return ret; +} + +static int del_station(struct wiphy *wiphy, struct net_device *dev, + struct station_del_parameters *params) +{ + const u8 *mac = params->mac; + int ret = 0; + struct wilc_vif *vif = netdev_priv(dev); + struct wilc_priv *priv = &vif->priv; + struct sta_info *info; + + if (!(vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE)) + return ret; + + info = &priv->assoc_stainfo; + + if (!mac) + ret = wilc_del_allstation(vif, info->sta_associated_bss); + + ret = wilc_del_station(vif, mac); + if (ret) + netdev_err(dev, "Host delete station fail\n"); + return ret; +} + +static int change_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_parameters *params) +{ + int ret = 0; + struct wilc_vif *vif = netdev_priv(dev); + + if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { + ret = wilc_edit_station(vif, mac, params); + if (ret) + netdev_err(dev, "Host edit station fail\n"); + } + return ret; +} + +static struct wilc_vif *wilc_get_vif_from_type(struct wilc *wl, int type) +{ + struct wilc_vif *vif; + + list_for_each_entry_rcu(vif, &wl->vif_list, list) { + if (vif->iftype == type) + return vif; + } + + return NULL; +} + +static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy, + const char *name, + unsigned char name_assign_type, + enum nl80211_iftype type, + struct vif_params *params) +{ + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif; + struct wireless_dev *wdev; + int iftype; + + if (type == NL80211_IFTYPE_MONITOR) { + struct net_device *ndev; + int srcu_idx; + + srcu_idx = srcu_read_lock(&wl->srcu); + vif = wilc_get_vif_from_type(wl, WILC_AP_MODE); + if (!vif) { + vif = wilc_get_vif_from_type(wl, WILC_GO_MODE); + if (!vif) { + srcu_read_unlock(&wl->srcu, srcu_idx); + goto validate_interface; + } + } + + if (vif->monitor_flag) { + srcu_read_unlock(&wl->srcu, srcu_idx); + goto validate_interface; + } + + ndev = wilc_wfi_init_mon_interface(wl, name, vif->ndev); + if (ndev) { + vif->monitor_flag = 1; + } else { + srcu_read_unlock(&wl->srcu, srcu_idx); + return ERR_PTR(-EINVAL); + } + + wdev = &vif->priv.wdev; + srcu_read_unlock(&wl->srcu, srcu_idx); + return wdev; + } + +validate_interface: + mutex_lock(&wl->vif_mutex); + if (wl->vif_num == WILC_NUM_CONCURRENT_IFC) { + pr_err("Reached maximum number of interface\n"); + mutex_unlock(&wl->vif_mutex); + return ERR_PTR(-EINVAL); + } + mutex_unlock(&wl->vif_mutex); + + switch (type) { + case NL80211_IFTYPE_STATION: + iftype = WILC_STATION_MODE; + break; + case NL80211_IFTYPE_AP: + iftype = WILC_AP_MODE; + break; + default: + return ERR_PTR(-EOPNOTSUPP); + } + + vif = wilc_netdev_ifc_init(wl, name, iftype, type, true); + if (IS_ERR(vif)) + return ERR_CAST(vif); + + return &vif->priv.wdev; +} + +static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) +{ + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif; + + if (wdev->iftype == NL80211_IFTYPE_AP || + wdev->iftype == NL80211_IFTYPE_P2P_GO) + wilc_wfi_deinit_mon_interface(wl, true); + vif = netdev_priv(wdev->netdev); + cfg80211_stop_iface(wiphy, wdev, GFP_KERNEL); + unregister_netdevice(vif->ndev); + vif->monitor_flag = 0; + + wilc_set_operation_mode(vif, 0, 0, 0); + mutex_lock(&wl->vif_mutex); + list_del_rcu(&vif->list); + wl->vif_num--; + mutex_unlock(&wl->vif_mutex); + synchronize_srcu(&wl->srcu); + return 0; +} + +static int wilc_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wow) +{ + struct wilc *wl = wiphy_priv(wiphy); + + if (!wow && wilc_wlan_get_num_conn_ifcs(wl)) + wl->suspend_event = true; + else + wl->suspend_event = false; + + return 0; +} + +static int wilc_resume(struct wiphy *wiphy) +{ + return 0; +} + +static void wilc_set_wakeup(struct wiphy *wiphy, bool enabled) +{ + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif; + int srcu_idx; + + srcu_idx = srcu_read_lock(&wl->srcu); + vif = wilc_get_wl_to_vif(wl); + if (IS_ERR(vif)) { + srcu_read_unlock(&wl->srcu, srcu_idx); + return; + } + + netdev_info(vif->ndev, "cfg set wake up = %d\n", enabled); + srcu_read_unlock(&wl->srcu, srcu_idx); +} + +static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + enum nl80211_tx_power_setting type, int mbm) +{ + int ret; + int srcu_idx; + s32 tx_power = MBM_TO_DBM(mbm); + struct wilc *wl = wiphy_priv(wiphy); + struct wilc_vif *vif; + + if (!wl->initialized) + return -EIO; + + srcu_idx = srcu_read_lock(&wl->srcu); + vif = wilc_get_wl_to_vif(wl); + if (IS_ERR(vif)) { + srcu_read_unlock(&wl->srcu, srcu_idx); + return -EINVAL; + } + + netdev_info(vif->ndev, "Setting tx power %d\n", tx_power); + if (tx_power < 0) + tx_power = 0; + else if (tx_power > 18) + tx_power = 18; + ret = wilc_set_tx_power(vif, tx_power); + if (ret) + netdev_err(vif->ndev, "Failed to set tx power\n"); + srcu_read_unlock(&wl->srcu, srcu_idx); + + return ret; +} + +static int get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + int *dbm) +{ + int ret; + struct wilc_vif *vif = netdev_priv(wdev->netdev); + struct wilc *wl = vif->wilc; + + /* If firmware is not started, return. */ + if (!wl->initialized) + return -EIO; + + ret = wilc_get_tx_power(vif, (u8 *)dbm); + if (ret) + netdev_err(vif->ndev, "Failed to get tx power\n"); + + return ret; +} + +static const struct cfg80211_ops wilc_cfg80211_ops = { + .set_monitor_channel = set_channel, + .scan = scan, + .connect = connect, + .disconnect = disconnect, + .add_key = add_key, + .del_key = del_key, + .get_key = get_key, + .set_default_key = set_default_key, + .add_virtual_intf = add_virtual_intf, + .del_virtual_intf = del_virtual_intf, + .change_virtual_intf = change_virtual_intf, + + .start_ap = start_ap, + .change_beacon = change_beacon, + .stop_ap = stop_ap, + .add_station = add_station, + .del_station = del_station, + .change_station = change_station, + .get_station = get_station, + .dump_station = dump_station, + .change_bss = change_bss, + .set_wiphy_params = set_wiphy_params, + + .set_pmksa = set_pmksa, + .del_pmksa = del_pmksa, + .flush_pmksa = flush_pmksa, + .remain_on_channel = remain_on_channel, + .cancel_remain_on_channel = cancel_remain_on_channel, + .mgmt_tx_cancel_wait = mgmt_tx_cancel_wait, + .mgmt_tx = mgmt_tx, + .update_mgmt_frame_registrations = wilc_update_mgmt_frame_registrations, + .set_power_mgmt = set_power_mgmt, + .set_cqm_rssi_config = set_cqm_rssi_config, + + .suspend = wilc_suspend, + .resume = wilc_resume, + .set_wakeup = wilc_set_wakeup, + .set_tx_power = set_tx_power, + .get_tx_power = get_tx_power, + +}; + +static void wlan_init_locks(struct wilc *wl) +{ + mutex_init(&wl->hif_cs); + mutex_init(&wl->rxq_cs); + mutex_init(&wl->cfg_cmd_lock); + mutex_init(&wl->vif_mutex); + + spin_lock_init(&wl->txq_spinlock); + mutex_init(&wl->txq_add_to_head_cs); + + init_completion(&wl->txq_event); + init_completion(&wl->cfg_event); + init_completion(&wl->sync_event); + init_completion(&wl->txq_thread_started); + init_srcu_struct(&wl->srcu); +} + +void wlan_deinit_locks(struct wilc *wilc) +{ + mutex_destroy(&wilc->hif_cs); + mutex_destroy(&wilc->rxq_cs); + mutex_destroy(&wilc->cfg_cmd_lock); + mutex_destroy(&wilc->txq_add_to_head_cs); + mutex_destroy(&wilc->vif_mutex); + cleanup_srcu_struct(&wilc->srcu); +} + +int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type, + const struct wilc_hif_func *ops) +{ + struct wilc *wl; + struct wilc_vif *vif; + int ret; + + wl = wilc_create_wiphy(dev); + if (!wl) + return -EINVAL; + + wlan_init_locks(wl); + + ret = wilc_wlan_cfg_init(wl); + if (ret) + goto free_wl; + + *wilc = wl; + wl->io_type = io_type; + wl->hif_func = ops; + wl->chip_ps_state = WILC_CHIP_WAKEDUP; + INIT_LIST_HEAD(&wl->txq_head.list); + INIT_LIST_HEAD(&wl->rxq_head.list); + INIT_LIST_HEAD(&wl->vif_list); + + wl->hif_workqueue = create_singlethread_workqueue("WILC_wq"); + if (!wl->hif_workqueue) { + ret = -ENOMEM; + goto free_cfg; + } + vif = wilc_netdev_ifc_init(wl, "wlan%d", WILC_STATION_MODE, + NL80211_IFTYPE_STATION, false); + if (IS_ERR(vif)) { + ret = PTR_ERR(vif); + goto free_hq; + } + + return 0; + +free_hq: + destroy_workqueue(wl->hif_workqueue); + +free_cfg: + wilc_wlan_cfg_deinit(wl); + +free_wl: + wlan_deinit_locks(wl); + wiphy_unregister(wl->wiphy); + wiphy_free(wl->wiphy); + return ret; +} +EXPORT_SYMBOL_GPL(wilc_cfg80211_init); + +struct wilc *wilc_create_wiphy(struct device *dev) +{ + struct wiphy *wiphy; + struct wilc *wl; + int ret; + + wiphy = wiphy_new(&wilc_cfg80211_ops, sizeof(*wl)); + if (!wiphy) + return NULL; + + wl = wiphy_priv(wiphy); + + memcpy(wl->bitrates, wilc_bitrates, sizeof(wilc_bitrates)); + memcpy(wl->channels, wilc_2ghz_channels, sizeof(wilc_2ghz_channels)); + wl->band.bitrates = wl->bitrates; + wl->band.n_bitrates = ARRAY_SIZE(wl->bitrates); + wl->band.channels = wl->channels; + wl->band.n_channels = ARRAY_SIZE(wilc_2ghz_channels); + + wl->band.ht_cap.ht_supported = 1; + wl->band.ht_cap.cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); + wl->band.ht_cap.mcs.rx_mask[0] = 0xff; + wl->band.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K; + wl->band.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; + + wiphy->bands[NL80211_BAND_2GHZ] = &wl->band; + + wiphy->max_scan_ssids = WILC_MAX_NUM_PROBED_SSID; +#ifdef CONFIG_PM + wiphy->wowlan = &wowlan_support; +#endif + wiphy->max_num_pmkids = WILC_MAX_NUM_PMKIDS; + wiphy->max_scan_ie_len = 1000; + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + memcpy(wl->cipher_suites, wilc_cipher_suites, + sizeof(wilc_cipher_suites)); + wiphy->cipher_suites = wl->cipher_suites; + wiphy->n_cipher_suites = ARRAY_SIZE(wilc_cipher_suites); + wiphy->mgmt_stypes = wilc_wfi_cfg80211_mgmt_types; + + wiphy->max_remain_on_channel_duration = 500; + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_MONITOR) | + BIT(NL80211_IFTYPE_P2P_GO) | + BIT(NL80211_IFTYPE_P2P_CLIENT); + wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; + + set_wiphy_dev(wiphy, dev); + wl->wiphy = wiphy; + ret = wiphy_register(wiphy); + if (ret) { + wiphy_free(wiphy); + return NULL; + } + return wl; +} + +int wilc_init_host_int(struct net_device *net) +{ + int ret; + struct wilc_vif *vif = netdev_priv(net); + struct wilc_priv *priv = &vif->priv; + + priv->p2p_listen_state = false; + + mutex_init(&priv->scan_req_lock); + ret = wilc_init(net, &priv->hif_drv); + if (ret) + netdev_err(net, "Error while initializing hostinterface\n"); + + return ret; +} + +void wilc_deinit_host_int(struct net_device *net) +{ + int ret; + struct wilc_vif *vif = netdev_priv(net); + struct wilc_priv *priv = &vif->priv; + + priv->p2p_listen_state = false; + + flush_workqueue(vif->wilc->hif_workqueue); + mutex_destroy(&priv->scan_req_lock); + ret = wilc_deinit(vif); + + if (ret) + netdev_err(net, "Error while deinitializing host interface\n"); +} + |