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author	Linus Torvalds <torvalds@linux-foundation.org>	2022-03-20 13:14:17 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2022-03-20 13:14:17 -0700
commit	f443e374ae131c168a065ea1748feac6b2e76613 (patch)
tree	b7ddd9a2ac808173dab4d2e8edd7ca73a6d37c4e /Documentation/tools
parent	7445b2dcd77ae8385bd08bb6c2db20ea0cfa6230 (diff)

Linux 5.17v5.17

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Diffstat (limited to 'Documentation/tools')

0 files changed, 0 insertions, 0 deletions

WEP_CRYPT; *ar_cipher_len = 5; break; case WLAN_CIPHER_SUITE_WEP104: *ar_cipher = WEP_CRYPT; *ar_cipher_len = 13; break; case WLAN_CIPHER_SUITE_TKIP: *ar_cipher = TKIP_CRYPT; *ar_cipher_len = 0; break; case WLAN_CIPHER_SUITE_CCMP: *ar_cipher = AES_CRYPT; *ar_cipher_len = 0; break; case WLAN_CIPHER_SUITE_SMS4: *ar_cipher = WAPI_CRYPT; *ar_cipher_len = 0; break; default: ath6kl_err("cipher 0x%x not supported\n", cipher); return -ENOTSUPP; } return 0; } static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); if (key_mgmt == WLAN_AKM_SUITE_PSK) { if (vif->auth_mode == WPA_AUTH) vif->auth_mode = WPA_PSK_AUTH; else if (vif->auth_mode == WPA2_AUTH) vif->auth_mode = WPA2_PSK_AUTH; } else if (key_mgmt == 0x00409600) { if (vif->auth_mode == WPA_AUTH) vif->auth_mode = WPA_AUTH_CCKM; else if (vif->auth_mode == WPA2_AUTH) vif->auth_mode = WPA2_AUTH_CCKM; } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { vif->auth_mode = NONE_AUTH; } } static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) { struct ath6kl *ar = vif->ar; if (!test_bit(WMI_READY, &ar->flag)) { ath6kl_err("wmi is not ready\n"); return false; } if (!test_bit(WLAN_ENABLED, &vif->flags)) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "wlan disabled\n"); return false; } return true; } static bool ath6kl_is_wpa_ie(const u8 *pos) { return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && pos[5] == 0x01; } static bool ath6kl_is_rsn_ie(const u8 *pos) { return pos[0] == WLAN_EID_RSN; } static bool ath6kl_is_wps_ie(const u8 *pos) { return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && pos[5] == 0x04); } static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, size_t ies_len) { struct ath6kl *ar = vif->ar; const u8 *pos; u8 *buf = NULL; size_t len = 0; int ret; /* * Clear previously set flag */ ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; /* * Filter out RSN/WPA IE(s) */ if (ies && ies_len) { buf = kmalloc(ies_len, GFP_KERNEL); if (buf == NULL) return -ENOMEM; pos = ies; while (pos + 1 < ies + ies_len) { if (pos + 2 + pos[1] > ies + ies_len) break; if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { memcpy(buf + len, pos, 2 + pos[1]); len += 2 + pos[1]; } if (ath6kl_is_wps_ie(pos)) ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; pos += 2 + pos[1]; } } ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, WMI_FRAME_ASSOC_REQ, buf, len); kfree(buf); return ret; } static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) { switch (type) { case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: *nw_type = INFRA_NETWORK; break; case NL80211_IFTYPE_ADHOC: *nw_type = ADHOC_NETWORK; break; case NL80211_IFTYPE_AP: case NL80211_IFTYPE_P2P_GO: *nw_type = AP_NETWORK; break; default: ath6kl_err("invalid interface type %u\n", type); return -ENOTSUPP; } return 0; } static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, u8 *if_idx, u8 *nw_type) { int i; if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) return false; if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && ar->num_vif)) return false; if (type == NL80211_IFTYPE_STATION || type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { for (i = 0; i < ar->vif_max; i++) { if ((ar->avail_idx_map) & BIT(i)) { *if_idx = i; return true; } } } if (type == NL80211_IFTYPE_P2P_CLIENT || type == NL80211_IFTYPE_P2P_GO) { for (i = ar->max_norm_iface; i < ar->vif_max; i++) { if ((ar->avail_idx_map) & BIT(i)) { *if_idx = i; return true; } } } return false; } static bool ath6kl_is_tx_pending(struct ath6kl *ar) { return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; } static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, bool enable) { int err; if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) return; if (vif->nw_type != INFRA_NETWORK) return; if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, vif->ar->fw_capabilities)) return; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", enable ? "enable" : "disable"); err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, vif->fw_vif_idx, enable); if (err) ath6kl_err("failed to %s enhanced bmiss detection: %d\n", enable ? "enable" : "disable", err); } static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_connect_params *sme) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); int status; u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; u16 interval; ath6kl_cfg80211_sscan_disable(vif); vif->sme_state = SME_CONNECTING; if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { ath6kl_err("destroy in progress\n"); return -EBUSY; } if (test_bit(SKIP_SCAN, &ar->flag) && ((sme->channel && sme->channel->center_freq == 0) || (sme->bssid && is_zero_ether_addr(sme->bssid)))) { ath6kl_err("SkipScan: channel or bssid invalid\n"); return -EINVAL; } if (down_interruptible(&ar->sem)) { ath6kl_err("busy, couldn't get access\n"); return -ERESTARTSYS; } if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { ath6kl_err("busy, destroy in progress\n"); up(&ar->sem); return -EBUSY; } if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { /* * sleep until the command queue drains */ wait_event_interruptible_timeout(ar->event_wq, ath6kl_is_tx_pending(ar), WMI_TIMEOUT); if (signal_pending(current)) { ath6kl_err("cmd queue drain timeout\n"); up(&ar->sem); return -EINTR; } } status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); if (status) { up(&ar->sem); return status; } if (sme->ie == NULL || sme->ie_len == 0) ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; if (test_bit(CONNECTED, &vif->flags) && vif->ssid_len == sme->ssid_len && !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { vif->reconnect_flag = true; status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, vif->req_bssid, vif->ch_hint); up(&ar->sem); if (status) { ath6kl_err("wmi_reconnect_cmd failed\n"); return -EIO; } return 0; } else if (vif->ssid_len == sme->ssid_len && !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { ath6kl_disconnect(vif); } memset(vif->ssid, 0, sizeof(vif->ssid)); vif->ssid_len = sme->ssid_len; memcpy(vif->ssid, sme->ssid, sme->ssid_len); if (sme->channel) vif->ch_hint = sme->channel->center_freq; memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); status = ath6kl_set_auth_type(vif, sme->auth_type); if (status) { up(&ar->sem); return status; } if (sme->crypto.n_ciphers_pairwise) ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); else ath6kl_set_cipher(vif, 0, true); ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); if (sme->crypto.n_akm_suites) ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); if ((sme->key_len) && (vif->auth_mode == NONE_AUTH) && (vif->prwise_crypto == WEP_CRYPT)) { struct ath6kl_key *key = NULL; if (sme->key_idx > WMI_MAX_KEY_INDEX) { ath6kl_err("key index %d out of bounds\n", sme->key_idx); up(&ar->sem); return -ENOENT; } key = &vif->keys[sme->key_idx]; key->key_len = sme->key_len; memcpy(key->key, sme->key, key->key_len); key->cipher = vif->prwise_crypto; vif->def_txkey_index = sme->key_idx; ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, vif->prwise_crypto, GROUP_USAGE | TX_USAGE, key->key_len, NULL, 0, key->key, KEY_OP_INIT_VAL, NULL, NO_SYNC_WMIFLAG); } if (!ar->usr_bss_filter) { clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, ALL_BSS_FILTER, 0) != 0) { ath6kl_err("couldn't set bss filtering\n"); up(&ar->sem); return -EIO; } } vif->nw_type = vif->next_mode; /* enable enhanced bmiss detection if applicable */ ath6kl_cfg80211_sta_bmiss_enhance(vif, true); if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) nw_subtype = SUBTYPE_P2PCLIENT; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: connect called with authmode %d dot11 auth %d" " PW crypto %d PW crypto len %d GRP crypto %d" " GRP crypto len %d channel hint %u\n", __func__, vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, vif->prwise_crypto_len, vif->grp_crypto, vif->grp_crypto_len, vif->ch_hint); vif->reconnect_flag = 0; if (vif->nw_type == INFRA_NETWORK) { interval = max_t(u16, vif->listen_intvl_t, ATH6KL_MAX_WOW_LISTEN_INTL); status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, interval, 0); if (status) { ath6kl_err("couldn't set listen intervel\n"); up(&ar->sem); return status; } } status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, vif->dot11_auth_mode, vif->auth_mode, vif->prwise_crypto, vif->prwise_crypto_len, vif->grp_crypto, vif->grp_crypto_len, vif->ssid_len, vif->ssid, vif->req_bssid, vif->ch_hint, ar->connect_ctrl_flags, nw_subtype); if (sme->bg_scan_period == 0) { /* disable background scan if period is 0 */ sme->bg_scan_period = 0xffff; } else if (sme->bg_scan_period == -1) { /* configure default value if not specified */ sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; } ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); up(&ar->sem); if (status == -EINVAL) { memset(vif->ssid, 0, sizeof(vif->ssid)); vif->ssid_len = 0; ath6kl_err("invalid request\n"); return -ENOENT; } else if (status) { ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); return -EIO; } if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && ((vif->auth_mode == WPA_PSK_AUTH) || (vif->auth_mode == WPA2_PSK_AUTH))) { mod_timer(&vif->disconnect_timer, jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); } ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; set_bit(CONNECT_PEND, &vif->flags); return 0; } static struct cfg80211_bss * ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, enum network_type nw_type, const u8 *bssid, struct ieee80211_channel *chan, const u8 *beacon_ie, size_t beacon_ie_len) { struct ath6kl *ar = vif->ar; struct cfg80211_bss *bss; u16 cap_val; enum ieee80211_bss_type bss_type; u8 *ie; if (nw_type & ADHOC_NETWORK) { cap_val = WLAN_CAPABILITY_IBSS; bss_type = IEEE80211_BSS_TYPE_IBSS; } else { cap_val = WLAN_CAPABILITY_ESS; bss_type = IEEE80211_BSS_TYPE_ESS; } bss = cfg80211_get_bss(ar->wiphy, chan, bssid, vif->ssid, vif->ssid_len, bss_type, IEEE80211_PRIVACY_ANY); if (bss == NULL) { /* * Since cfg80211 may not yet know about the BSS, * generate a partial entry until the first BSS info * event becomes available. * * Prepend SSID element since it is not included in the Beacon * IEs from the target. */ ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); if (ie == NULL) return NULL; ie[0] = WLAN_EID_SSID; ie[1] = vif->ssid_len; memcpy(ie + 2, vif->ssid, vif->ssid_len); memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); bss = cfg80211_inform_bss(ar->wiphy, chan, CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0, cap_val, 100, ie, 2 + vif->ssid_len + beacon_ie_len, 0, GFP_KERNEL); if (bss) ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "added bss %pM to cfg80211\n", bssid); kfree(ie); } else { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); } return bss; } void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, u16 listen_intvl, u16 beacon_intvl, enum network_type nw_type, u8 beacon_ie_len, u8 assoc_req_len, u8 assoc_resp_len, u8 *assoc_info) { struct ieee80211_channel *chan; struct ath6kl *ar = vif->ar; struct cfg80211_bss *bss; /* capinfo + listen interval */ u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); /* capinfo + status code + associd */ u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + assoc_resp_ie_offset; assoc_req_len -= assoc_req_ie_offset; assoc_resp_len -= assoc_resp_ie_offset; /* * Store Beacon interval here; DTIM period will be available only once * a Beacon frame from the AP is seen. */ vif->assoc_bss_beacon_int = beacon_intvl; clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); if (nw_type & ADHOC_NETWORK) { if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in ibss mode\n", __func__); return; } } if (nw_type & INFRA_NETWORK) { if (vif->wdev.iftype != NL80211_IFTYPE_STATION && vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in station mode\n", __func__); return; } } chan = ieee80211_get_channel(ar->wiphy, (int) channel); bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, assoc_info, beacon_ie_len); if (!bss) { ath6kl_err("could not add cfg80211 bss entry\n"); return; } if (nw_type & ADHOC_NETWORK) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", nw_type & ADHOC_CREATOR ? "creator" : "joiner"); cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL); cfg80211_put_bss(ar->wiphy, bss); return; } if (vif->sme_state == SME_CONNECTING) { /* inform connect result to cfg80211 */ vif->sme_state = SME_CONNECTED; cfg80211_connect_result(vif->ndev, bssid, assoc_req_ie, assoc_req_len, assoc_resp_ie, assoc_resp_len, WLAN_STATUS_SUCCESS, GFP_KERNEL); cfg80211_put_bss(ar->wiphy, bss); } else if (vif->sme_state == SME_CONNECTED) { struct cfg80211_roam_info roam_info = { .links[0].bss = bss, .req_ie = assoc_req_ie, .req_ie_len = assoc_req_len, .resp_ie = assoc_resp_ie, .resp_ie_len = assoc_resp_len, }; /* inform roam event to cfg80211 */ cfg80211_roamed(vif->ndev, &roam_info, GFP_KERNEL); } } static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_code) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, reason_code); ath6kl_cfg80211_sscan_disable(vif); if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { ath6kl_err("busy, destroy in progress\n"); return -EBUSY; } if (down_interruptible(&ar->sem)) { ath6kl_err("busy, couldn't get access\n"); return -ERESTARTSYS; } vif->reconnect_flag = 0; ath6kl_disconnect(vif); memset(vif->ssid, 0, sizeof(vif->ssid)); vif->ssid_len = 0; if (!test_bit(SKIP_SCAN, &ar->flag)) memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); up(&ar->sem); return 0; } void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, u8 assoc_resp_len, u8 *assoc_info, u16 proto_reason) { struct ath6kl *ar = vif->ar; if (vif->scan_req) { struct cfg80211_scan_info info = { .aborted = true, }; cfg80211_scan_done(vif->scan_req, &info); vif->scan_req = NULL; } if (vif->nw_type & ADHOC_NETWORK) { if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in ibss mode\n", __func__); return; } if (vif->nw_type & INFRA_NETWORK) { if (vif->wdev.iftype != NL80211_IFTYPE_STATION && vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: ath6k not in station mode\n", __func__); return; } } clear_bit(CONNECT_PEND, &vif->flags); if (vif->sme_state == SME_CONNECTING) { cfg80211_connect_result(vif->ndev, bssid, NULL, 0, NULL, 0, WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); } else if (vif->sme_state == SME_CONNECTED) { cfg80211_disconnected(vif->ndev, proto_reason, NULL, 0, false, GFP_KERNEL); } vif->sme_state = SME_DISCONNECTED; /* * Send a disconnect command to target when a disconnect event is * received with reason code other than 3 (DISCONNECT_CMD - disconnect * request from host) to make the firmware stop trying to connect even * after giving disconnect event. There will be one more disconnect * event for this disconnect command with reason code DISCONNECT_CMD * which won't be notified to cfg80211. */ if (reason != DISCONNECT_CMD) ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); } static int ath6kl_set_probed_ssids(struct ath6kl *ar, struct ath6kl_vif *vif, struct cfg80211_ssid *ssids, int n_ssids, struct cfg80211_match_set *match_set, int n_match_ssid) { u8 i, j, index_to_add, ssid_found = false; struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; memset(ssid_list, 0, sizeof(ssid_list)); if (n_ssids > MAX_PROBED_SSIDS || n_match_ssid > MAX_PROBED_SSIDS) return -EINVAL; for (i = 0; i < n_ssids; i++) { memcpy(ssid_list[i].ssid.ssid, ssids[i].ssid, ssids[i].ssid_len); ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; if (ssids[i].ssid_len) ssid_list[i].flag = SPECIFIC_SSID_FLAG; else ssid_list[i].flag = ANY_SSID_FLAG; if (ar->wiphy->max_match_sets != 0 && n_match_ssid == 0) ssid_list[i].flag |= MATCH_SSID_FLAG; } index_to_add = i; for (i = 0; i < n_match_ssid; i++) { ssid_found = false; for (j = 0; j < n_ssids; j++) { if ((match_set[i].ssid.ssid_len == ssid_list[j].ssid.ssid_len) && (!memcmp(ssid_list[j].ssid.ssid, match_set[i].ssid.ssid, match_set[i].ssid.ssid_len))) { ssid_list[j].flag |= MATCH_SSID_FLAG; ssid_found = true; break; } } if (ssid_found) continue; if (index_to_add >= MAX_PROBED_SSIDS) continue; ssid_list[index_to_add].ssid.ssid_len = match_set[i].ssid.ssid_len; memcpy(ssid_list[index_to_add].ssid.ssid, match_set[i].ssid.ssid, match_set[i].ssid.ssid_len); ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; index_to_add++; } for (i = 0; i < index_to_add; i++) { ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, ssid_list[i].flag, ssid_list[i].ssid.ssid_len, ssid_list[i].ssid.ssid); } /* Make sure no old entries are left behind */ for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, DISABLE_SSID_FLAG, 0, NULL); } return 0; } static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) { struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); struct ath6kl *ar = ath6kl_priv(vif->ndev); s8 n_channels = 0; u16 *channels = NULL; int ret = 0; u32 force_fg_scan = 0; if (!ath6kl_cfg80211_ready(vif)) return -EIO; ath6kl_cfg80211_sscan_disable(vif); if (!ar->usr_bss_filter) { clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, ALL_BSS_FILTER, 0); if (ret) { ath6kl_err("couldn't set bss filtering\n"); return ret; } } ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, request->n_ssids, NULL, 0); if (ret < 0) return ret; /* this also clears IE in fw if it's not set */ ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, WMI_FRAME_PROBE_REQ, request->ie, request->ie_len); if (ret) { ath6kl_err("failed to set Probe Request appie for scan\n"); return ret; } /* * Scan only the requested channels if the request specifies a set of * channels. If the list is longer than the target supports, do not * configure the list and instead, scan all available channels. */ if (request->n_channels > 0 && request->n_channels <= WMI_MAX_CHANNELS) { u8 i; n_channels = request->n_channels; channels = kcalloc(n_channels, sizeof(u16), GFP_KERNEL); if (channels == NULL) { ath6kl_warn("failed to set scan channels, scan all channels"); n_channels = 0; } for (i = 0; i < n_channels; i++) channels[i] = request->channels[i]->center_freq; } if (test_bit(CONNECTED, &vif->flags)) force_fg_scan = 1; vif->scan_req = request; ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, WMI_LONG_SCAN, force_fg_scan, false, 0, ATH6KL_FG_SCAN_INTERVAL, n_channels, channels, request->no_cck, request->rates); if (ret) { ath6kl_err("failed to start scan: %d\n", ret); vif->scan_req = NULL; } kfree(channels); return ret; } void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) { struct ath6kl *ar = vif->ar; struct cfg80211_scan_info info = { .aborted = aborted, }; int i; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, aborted ? " aborted" : ""); if (!vif->scan_req) return; if (aborted) goto out; if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { for (i = 0; i < vif->scan_req->n_ssids; i++) { ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, DISABLE_SSID_FLAG, 0, NULL); } } out: cfg80211_scan_done(vif->scan_req, &info); vif->scan_req = NULL; } void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, enum wmi_phy_mode mode) { struct cfg80211_chan_def chandef; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "channel switch notify nw_type %d freq %d mode %d\n", vif->nw_type, freq, mode); cfg80211_chandef_create(&chandef, ieee80211_get_channel(vif->ar->wiphy, freq), (mode == WMI_11G_HT20 && ath6kl_band_2ghz.ht_cap.ht_supported) ? NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); wiphy_lock(vif->ar->wiphy); cfg80211_ch_switch_notify(vif->ndev, &chandef, 0); wiphy_unlock(vif->ar->wiphy); } static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, int link_id, u8 key_index, bool pairwise, const u8 *mac_addr, struct key_params *params) { struct ath6kl *ar = ath6kl_priv(ndev); struct ath6kl_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; int seq_len; u8 key_usage; u8 key_type; if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (params->cipher == CCKM_KRK_CIPHER_SUITE) { if (params->key_len != WMI_KRK_LEN) return -EINVAL; return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, params->key); } if (key_index > WMI_MAX_KEY_INDEX) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: key index %d out of bounds\n", __func__, key_index); return -ENOENT; } key = &vif->keys[key_index]; memset(key, 0, sizeof(struct ath6kl_key)); if (pairwise) key_usage = PAIRWISE_USAGE; else key_usage = GROUP_USAGE; seq_len = params->seq_len; if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && seq_len > ATH6KL_KEY_SEQ_LEN) { /* Only first half of the WPI PN is configured */ seq_len = ATH6KL_KEY_SEQ_LEN; } if (params->key_len > WLAN_MAX_KEY_LEN || seq_len > sizeof(key->seq)) return -EINVAL; key->key_len = params->key_len; memcpy(key->key, params->key, key->key_len); key->seq_len = seq_len; memcpy(key->seq, params->seq, key->seq_len); key->cipher = params->cipher; switch (key->cipher) { case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: key_type = WEP_CRYPT; break; case WLAN_CIPHER_SUITE_TKIP: key_type = TKIP_CRYPT; break; case WLAN_CIPHER_SUITE_CCMP: key_type = AES_CRYPT; break; case WLAN_CIPHER_SUITE_SMS4: key_type = WAPI_CRYPT; break; default: return -ENOTSUPP; } if (((vif->auth_mode == WPA_PSK_AUTH) || (vif->auth_mode == WPA2_PSK_AUTH)) && (key_usage & GROUP_USAGE)) del_timer(&vif->disconnect_timer); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", __func__, key_index, key->key_len, key_type, key_usage, key->seq_len); if (vif->nw_type == AP_NETWORK && !pairwise && (key_type == TKIP_CRYPT || key_type == AES_CRYPT || key_type == WAPI_CRYPT)) { ar->ap_mode_bkey.valid = true; ar->ap_mode_bkey.key_index = key_index; ar->ap_mode_bkey.key_type = key_type; ar->ap_mode_bkey.key_len = key->key_len; memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); if (!test_bit(CONNECTED, &vif->flags)) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group key configuration until AP mode has been started\n"); /* * The key will be set in ath6kl_connect_ap_mode() once * the connected event is received from the target. */ return 0; } } if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && !test_bit(CONNECTED, &vif->flags)) { /* * Store the key locally so that it can be re-configured after * the AP mode has properly started * (ath6kl_install_statioc_wep_keys). */ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay WEP key configuration until AP mode has been started\n"); vif->wep_key_list[key_index].key_len = key->key_len; memcpy(vif->wep_key_list[key_index].key, key->key, key->key_len); return 0; } return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, key_type, key_usage, key->key_len, key->seq, key->seq_len, key->key, KEY_OP_INIT_VAL, (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); } static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, int link_id, u8 key_index, bool pairwise, const u8 *mac_addr) { struct ath6kl *ar = ath6kl_priv(ndev); struct ath6kl_vif *vif = netdev_priv(ndev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (key_index > WMI_MAX_KEY_INDEX) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: key index %d out of bounds\n", __func__, key_index); return -ENOENT; } if (!vif->keys[key_index].key_len) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d is empty\n", __func__, key_index); return 0; } vif->keys[key_index].key_len = 0; return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); } static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, int link_id, u8 key_index, bool pairwise, const u8 *mac_addr, void *cookie, void (*callback) (void *cookie, struct key_params *)) { struct ath6kl_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; struct key_params params; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (key_index > WMI_MAX_KEY_INDEX) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: key index %d out of bounds\n", __func__, key_index); return -ENOENT; } key = &vif->keys[key_index]; memset(¶ms, 0, sizeof(params)); params.cipher = key->cipher; params.key_len = key->key_len; params.seq_len = key->seq_len; params.seq = key->seq; params.key = key->key; callback(cookie, ¶ms); return key->key_len ? 0 : -ENOENT; } static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *ndev, int link_id, u8 key_index, bool unicast, bool multicast) { struct ath6kl *ar = ath6kl_priv(ndev); struct ath6kl_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; u8 key_usage; enum ath6kl_crypto_type key_type = NONE_CRYPT; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (key_index > WMI_MAX_KEY_INDEX) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: key index %d out of bounds\n", __func__, key_index); return -ENOENT; } if (!vif->keys[key_index].key_len) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", __func__, key_index); return -EINVAL; } vif->def_txkey_index = key_index; key = &vif->keys[vif->def_txkey_index]; key_usage = GROUP_USAGE; if (vif->prwise_crypto == WEP_CRYPT) key_usage |= TX_USAGE; if (unicast) key_type = vif->prwise_crypto; if (multicast) key_type = vif->grp_crypto; if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) return 0; /* Delay until AP mode has been started */ return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, vif->def_txkey_index, key_type, key_usage, key->key_len, key->seq, key->seq_len, key->key, KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); } void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); cfg80211_michael_mic_failure(vif->ndev, vif->bssid, (ismcast ? NL80211_KEYTYPE_GROUP : NL80211_KEYTYPE_PAIRWISE), keyid, NULL, GFP_KERNEL); } static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) { struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); struct ath6kl_vif *vif; int ret; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, changed); vif = ath6kl_vif_first(ar); if (!vif) return -EIO; if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (changed & WIPHY_PARAM_RTS_THRESHOLD) { ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); if (ret != 0) { ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); return -EIO; } } return 0; } static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, struct wireless_dev *wdev, enum nl80211_tx_power_setting type, int mbm) { struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); struct ath6kl_vif *vif; int dbm = MBM_TO_DBM(mbm); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, type, dbm); vif = ath6kl_vif_first(ar); if (!vif) return -EIO; if (!ath6kl_cfg80211_ready(vif)) return -EIO; switch (type) { case NL80211_TX_POWER_AUTOMATIC: return 0; case NL80211_TX_POWER_LIMITED: ar->tx_pwr = dbm; break; default: ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", __func__, type); return -EOPNOTSUPP; } ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); return 0; } static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, struct wireless_dev *wdev, int *dbm) { struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); struct ath6kl_vif *vif; vif = ath6kl_vif_first(ar); if (!vif) return -EIO; if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (test_bit(CONNECTED, &vif->flags)) { ar->tx_pwr = 255; if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); return -EIO; } wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255, 5 * HZ); if (signal_pending(current)) { ath6kl_err("target did not respond\n"); return -EINTR; } } *dbm = ar->tx_pwr; return 0; } static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, bool pmgmt, int timeout) { struct ath6kl *ar = ath6kl_priv(dev); struct wmi_power_mode_cmd mode; struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", __func__, pmgmt, timeout); if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (pmgmt) { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); mode.pwr_mode = REC_POWER; } else { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); mode.pwr_mode = MAX_PERF_POWER; } if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, mode.pwr_mode) != 0) { ath6kl_err("wmi_powermode_cmd failed\n"); return -EIO; } return 0; } static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, const char *name, unsigned char name_assign_type, enum nl80211_iftype type, struct vif_params *params) { struct ath6kl *ar = wiphy_priv(wiphy); struct wireless_dev *wdev; u8 if_idx, nw_type; if (ar->num_vif == ar->vif_max) { ath6kl_err("Reached maximum number of supported vif\n"); return ERR_PTR(-EINVAL); } if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { ath6kl_err("Not a supported interface type\n"); return ERR_PTR(-EINVAL); } wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type); if (!wdev) return ERR_PTR(-ENOMEM); ar->num_vif++; return wdev; } static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) { struct ath6kl *ar = wiphy_priv(wiphy); struct ath6kl_vif *vif = netdev_priv(wdev->netdev); spin_lock_bh(&ar->list_lock); list_del(&vif->list); spin_unlock_bh(&ar->list_lock); ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); rtnl_lock(); ath6kl_cfg80211_vif_cleanup(vif); rtnl_unlock(); return 0; } static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, enum nl80211_iftype type, struct vif_params *params) { struct ath6kl_vif *vif = netdev_priv(ndev); int i; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); /* * Don't bring up p2p on an interface which is not initialized * for p2p operation where fw does not have capability to switch * dynamically between non-p2p and p2p type interface. */ if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, vif->ar->fw_capabilities) && (type == NL80211_IFTYPE_P2P_CLIENT || type == NL80211_IFTYPE_P2P_GO)) { if (vif->ar->vif_max == 1) { if (vif->fw_vif_idx != 0) return -EINVAL; else goto set_iface_type; } for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { if (i == vif->fw_vif_idx) break; } if (i == vif->ar->vif_max) { ath6kl_err("Invalid interface to bring up P2P\n"); return -EINVAL; } } /* need to clean up enhanced bmiss detection fw state */ ath6kl_cfg80211_sta_bmiss_enhance(vif, false); set_iface_type: switch (type) { case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: vif->next_mode = INFRA_NETWORK; break; case NL80211_IFTYPE_ADHOC: vif->next_mode = ADHOC_NETWORK; break; case NL80211_IFTYPE_AP: case NL80211_IFTYPE_P2P_GO: vif->next_mode = AP_NETWORK; break; default: ath6kl_err("invalid interface type %u\n", type); return -EOPNOTSUPP; } vif->wdev.iftype = type; return 0; } static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_ibss_params *ibss_param) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); int status; if (!ath6kl_cfg80211_ready(vif)) return -EIO; vif->ssid_len = ibss_param->ssid_len; memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); if (ibss_param->chandef.chan) vif->ch_hint = ibss_param->chandef.chan->center_freq; if (ibss_param->channel_fixed) { /* * TODO: channel_fixed: The channel should be fixed, do not * search for IBSSs to join on other channels. Target * firmware does not support this feature, needs to be * updated. */ return -EOPNOTSUPP; } memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) memcpy(vif->req_bssid, ibss_param->bssid, sizeof(vif->req_bssid)); ath6kl_set_wpa_version(vif, 0); status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); if (status) return status; if (ibss_param->privacy) { ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); } else { ath6kl_set_cipher(vif, 0, true); ath6kl_set_cipher(vif, 0, false); } vif->nw_type = vif->next_mode; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: connect called with authmode %d dot11 auth %d" " PW crypto %d PW crypto len %d GRP crypto %d" " GRP crypto len %d channel hint %u\n", __func__, vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, vif->prwise_crypto_len, vif->grp_crypto, vif->grp_crypto_len, vif->ch_hint); status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, vif->dot11_auth_mode, vif->auth_mode, vif->prwise_crypto, vif->prwise_crypto_len, vif->grp_crypto, vif->grp_crypto_len, vif->ssid_len, vif->ssid, vif->req_bssid, vif->ch_hint, ar->connect_ctrl_flags, SUBTYPE_NONE); set_bit(CONNECT_PEND, &vif->flags); return 0; } static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) { struct ath6kl_vif *vif = netdev_priv(dev); if (!ath6kl_cfg80211_ready(vif)) return -EIO; ath6kl_disconnect(vif); memset(vif->ssid, 0, sizeof(vif->ssid)); vif->ssid_len = 0; return 0; } static const u32 cipher_suites[] = { WLAN_CIPHER_SUITE_WEP40, WLAN_CIPHER_SUITE_WEP104, WLAN_CIPHER_SUITE_TKIP, WLAN_CIPHER_SUITE_CCMP, CCKM_KRK_CIPHER_SUITE, WLAN_CIPHER_SUITE_SMS4, }; static bool is_rate_legacy(s32 rate) { static const s32 legacy[] = { 1000, 2000, 5500, 11000, 6000, 9000, 12000, 18000, 24000, 36000, 48000, 54000 }; u8 i; for (i = 0; i < ARRAY_SIZE(legacy); i++) if (rate == legacy[i]) return true; return false; } static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) { static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 52000, 58500, 65000, 72200 }; u8 i; for (i = 0; i < ARRAY_SIZE(ht20); i++) { if (rate == ht20[i]) { if (i == ARRAY_SIZE(ht20) - 1) /* last rate uses sgi */ *sgi = true; else *sgi = false; *mcs = i; return true; } } return false; } static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) { static const s32 ht40[] = { 13500, 27000, 40500, 54000, 81000, 108000, 121500, 135000, 150000 }; u8 i; for (i = 0; i < ARRAY_SIZE(ht40); i++) { if (rate == ht40[i]) { if (i == ARRAY_SIZE(ht40) - 1) /* last rate uses sgi */ *sgi = true; else *sgi = false; *mcs = i; return true; } } return false; } static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, const u8 *mac, struct station_info *sinfo) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); long left; bool sgi; s32 rate; int ret; u8 mcs; if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) return -ENOENT; if (down_interruptible(&ar->sem)) return -EBUSY; set_bit(STATS_UPDATE_PEND, &vif->flags); ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); if (ret != 0) { up(&ar->sem); return -EIO; } left = wait_event_interruptible_timeout(ar->event_wq, !test_bit(STATS_UPDATE_PEND, &vif->flags), WMI_TIMEOUT); up(&ar->sem); if (left == 0) return -ETIMEDOUT; else if (left < 0) return left; if (vif->target_stats.rx_byte) { sinfo->rx_bytes = vif->target_stats.rx_byte; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64); sinfo->rx_packets = vif->target_stats.rx_pkt; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS); } if (vif->target_stats.tx_byte) { sinfo->tx_bytes = vif->target_stats.tx_byte; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64); sinfo->tx_packets = vif->target_stats.tx_pkt; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS); } sinfo->signal = vif->target_stats.cs_rssi; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); rate = vif->target_stats.tx_ucast_rate; if (is_rate_legacy(rate)) { sinfo->txrate.legacy = rate / 100; } else if (is_rate_ht20(rate, &mcs, &sgi)) { if (sgi) { sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; sinfo->txrate.mcs = mcs - 1; } else { sinfo->txrate.mcs = mcs; } sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; sinfo->txrate.bw = RATE_INFO_BW_20; } else if (is_rate_ht40(rate, &mcs, &sgi)) { if (sgi) { sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; sinfo->txrate.mcs = mcs - 1; } else { sinfo->txrate.mcs = mcs; } sinfo->txrate.bw = RATE_INFO_BW_40; sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; } else { ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "invalid rate from stats: %d\n", rate); ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); return 0; } sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); if (test_bit(CONNECTED, &vif->flags) && test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && vif->nw_type == INFRA_NETWORK) { sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); sinfo->bss_param.flags = 0; sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; } return 0; } static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, struct cfg80211_pmksa *pmksa) { struct ath6kl *ar = ath6kl_priv(netdev); struct ath6kl_vif *vif = netdev_priv(netdev); return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, pmksa->pmkid, true); } static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, struct cfg80211_pmksa *pmksa) { struct ath6kl *ar = ath6kl_priv(netdev); struct ath6kl_vif *vif = netdev_priv(netdev); return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, pmksa->pmkid, false); } static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) { struct ath6kl *ar = ath6kl_priv(netdev); struct ath6kl_vif *vif = netdev_priv(netdev); if (test_bit(CONNECTED, &vif->flags)) return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, vif->bssid, NULL, false); return 0; } static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, struct cfg80211_wowlan *wow, u32 *filter) { int ret, pos; u8 mask[WOW_PATTERN_SIZE]; u16 i; /* Configure the patterns that we received from the user. */ for (i = 0; i < wow->n_patterns; i++) { /* * Convert given nl80211 specific mask value to equivalent * driver specific mask value and send it to the chip along * with patterns. For example, If the mask value defined in * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), * then equivalent driver specific mask value is * "0xFF 0x00 0xFF 0x00". */ memset(&mask, 0, sizeof(mask)); for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) mask[pos] = 0xFF; } /* * Note: Pattern's offset is not passed as part of wowlan * parameter from CFG layer. So it's always passed as ZERO * to the firmware. It means, given WOW patterns are always * matched from the first byte of received pkt in the firmware. */ ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, wow->patterns[i].pattern_len, 0 /* pattern offset */, wow->patterns[i].pattern, mask); if (ret) return ret; } if (wow->disconnect) *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; if (wow->magic_pkt) *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; if (wow->gtk_rekey_failure) *filter |= WOW_FILTER_OPTION_GTK_ERROR; if (wow->eap_identity_req) *filter |= WOW_FILTER_OPTION_EAP_REQ; if (wow->four_way_handshake) *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; return 0; } static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) { static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08 }; static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f }; u8 unicst_offset = 0; static const u8 arp_pattern[] = { 0x08, 0x06 }; static const u8 arp_mask[] = { 0xff, 0xff }; u8 arp_offset = 20; static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; u8 discvr_offset = 38; static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; u8 dhcp_offset = 0; int ret; /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, sizeof(unicst_pattern), unicst_offset, unicst_pattern, unicst_mask); if (ret) { ath6kl_err("failed to add WOW unicast IP pattern\n"); return ret; } /* Setup all ARP pkt pattern */ ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, sizeof(arp_pattern), arp_offset, arp_pattern, arp_mask); if (ret) { ath6kl_err("failed to add WOW ARP pattern\n"); return ret; } /* * Setup multicast pattern for mDNS 224.0.0.251, * SSDP 239.255.255.250 and LLMNR 224.0.0.252 */ ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, sizeof(discvr_pattern), discvr_offset, discvr_pattern, discvr_mask); if (ret) { ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); return ret; } /* Setup all DHCP broadcast pkt pattern */ ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, sizeof(dhcp_pattern), dhcp_offset, dhcp_pattern, dhcp_mask); if (ret) { ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); return ret; } return 0; } static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) { struct net_device *ndev = vif->ndev; static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; u8 discvr_offset = 38; u8 mac_mask[ETH_ALEN]; int ret; /* Setup unicast pkt pattern */ eth_broadcast_addr(mac_mask); ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, ETH_ALEN, 0, ndev->dev_addr, mac_mask); if (ret) { ath6kl_err("failed to add WOW unicast pattern\n"); return ret; } /* * Setup multicast pattern for mDNS 224.0.0.251, * SSDP 239.255.255.250 and LLMNR 224.0.0.252 */ if ((ndev->flags & IFF_ALLMULTI) || (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, sizeof(discvr_pattern), discvr_offset, discvr_pattern, discvr_mask); if (ret) { ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); return ret; } } return 0; } static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) { return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); } static bool is_ctrl_ep_empty(struct ath6kl *ar) { return !ar->tx_pending[ar->ctrl_ep]; } static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) { int ret, left; clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_HOST_MODE_ASLEEP); if (ret) return ret; left = wait_event_interruptible_timeout(ar->event_wq, is_hsleep_mode_procsed(vif), WMI_TIMEOUT); if (left == 0) { ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); ret = -ETIMEDOUT; } else if (left < 0) { ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", left); ret = left; } if (ar->tx_pending[ar->ctrl_ep]) { left = wait_event_interruptible_timeout(ar->event_wq, is_ctrl_ep_empty(ar), WMI_TIMEOUT); if (left == 0) { ath6kl_warn("clear wmi ctrl data timeout\n"); ret = -ETIMEDOUT; } else if (left < 0) { ath6kl_warn("clear wmi ctrl data failed: %d\n", left); ret = left; } } return ret; } static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, struct cfg80211_wowlan *wow, u32 *filter) { struct ath6kl *ar = vif->ar; struct in_device *in_dev; struct in_ifaddr *ifa; int ret; u16 i, bmiss_time; __be32 ips[MAX_IP_ADDRS]; u8 index = 0; if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, ar->fw_capabilities)) { ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx, false); if (ret) return ret; } /* Clear existing WOW patterns */ for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, WOW_LIST_ID, i); /* * Skip the default WOW pattern configuration * if the driver receives any WOW patterns from * the user. */ if (wow) ret = ath6kl_wow_usr(ar, vif, wow, filter); else if (vif->nw_type == AP_NETWORK) ret = ath6kl_wow_ap(ar, vif); else ret = ath6kl_wow_sta(ar, vif); if (ret) return ret; netif_stop_queue(vif->ndev); if (vif->nw_type != AP_NETWORK) { ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_MAX_WOW_LISTEN_INTL, 0); if (ret) return ret; /* Set listen interval x 15 times as bmiss time */ bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; if (bmiss_time > ATH6KL_MAX_BMISS_TIME) bmiss_time = ATH6KL_MAX_BMISS_TIME; ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, bmiss_time, 0); if (ret) return ret; ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 0, 0xFFFF, 0, 0, 0, 0, 0, 0, 0); if (ret) return ret; } /* Setup own IP addr for ARP agent. */ in_dev = __in_dev_get_rtnl(vif->ndev); if (!in_dev) return 0; ifa = rtnl_dereference(in_dev->ifa_list); memset(&ips, 0, sizeof(ips)); /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ while (index < MAX_IP_ADDRS && ifa) { ips[index] = ifa->ifa_local; ifa = rtnl_dereference(ifa->ifa_next); index++; } if (ifa) { ath6kl_err("total IP addr count is exceeding fw limit\n"); return -EINVAL; } ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); if (ret) { ath6kl_err("fail to setup ip for arp agent\n"); return ret; } return ret; } static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) { struct ath6kl_vif *first_vif, *vif; int ret = 0; u32 filter = 0; bool connected = false; /* enter / leave wow suspend on first vif always */ first_vif = ath6kl_vif_first(ar); if (WARN_ON(!first_vif) || !ath6kl_cfg80211_ready(first_vif)) return -EIO; if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) return -EINVAL; /* install filters for each connected vif */ spin_lock_bh(&ar->list_lock); list_for_each_entry(vif, &ar->vif_list, list) { if (!test_bit(CONNECTED, &vif->flags) || !ath6kl_cfg80211_ready(vif)) continue; connected = true; ret = ath6kl_wow_suspend_vif(vif, wow, &filter); if (ret) break; } spin_unlock_bh(&ar->list_lock); if (!connected) return -ENOTCONN; else if (ret) return ret; ar->state = ATH6KL_STATE_SUSPENDING; ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, ATH6KL_WOW_MODE_ENABLE, filter, WOW_HOST_REQ_DELAY); if (ret) return ret; return ath6kl_cfg80211_host_sleep(ar, first_vif); } static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) { struct ath6kl *ar = vif->ar; int ret; if (vif->nw_type != AP_NETWORK) { ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); if (ret) return ret; ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, vif->listen_intvl_t, 0); if (ret) return ret; ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, vif->bmiss_time_t, 0); if (ret) return ret; } if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, ar->fw_capabilities)) { ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx, true); if (ret) return ret; } netif_wake_queue(vif->ndev); return 0; } static int ath6kl_wow_resume(struct ath6kl *ar) { struct ath6kl_vif *vif; int ret; vif = ath6kl_vif_first(ar); if (WARN_ON(!vif) || !ath6kl_cfg80211_ready(vif)) return -EIO; ar->state = ATH6KL_STATE_RESUMING; ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_HOST_MODE_AWAKE); if (ret) { ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", ret); goto cleanup; } spin_lock_bh(&ar->list_lock); list_for_each_entry(vif, &ar->vif_list, list) { if (!test_bit(CONNECTED, &vif->flags) || !ath6kl_cfg80211_ready(vif)) continue; ret = ath6kl_wow_resume_vif(vif); if (ret) break; } spin_unlock_bh(&ar->list_lock); if (ret) goto cleanup; ar->state = ATH6KL_STATE_ON; return 0; cleanup: ar->state = ATH6KL_STATE_WOW; return ret; } static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) { struct ath6kl_vif *vif; int ret; vif = ath6kl_vif_first(ar); if (!vif) return -EIO; if (!test_bit(WMI_READY, &ar->flag)) { ath6kl_err("deepsleep failed as wmi is not ready\n"); return -EIO; } ath6kl_cfg80211_stop_all(ar); /* Save the current power mode before enabling power save */ ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); if (ret) return ret; /* Disable WOW mode */ ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_WOW_MODE_DISABLE, 0, 0); if (ret) return ret; /* Flush all non control pkts in TX path */ ath6kl_tx_data_cleanup(ar); ret = ath6kl_cfg80211_host_sleep(ar, vif); if (ret) return ret; return 0; } static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) { struct ath6kl_vif *vif; int ret; vif = ath6kl_vif_first(ar); if (!vif) return -EIO; if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, ar->wmi->saved_pwr_mode); if (ret) return ret; } ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_HOST_MODE_AWAKE); if (ret) return ret; ar->state = ATH6KL_STATE_ON; /* Reset scan parameter to default values */ ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); if (ret) return ret; return 0; } int ath6kl_cfg80211_suspend(struct ath6kl *ar, enum ath6kl_cfg_suspend_mode mode, struct cfg80211_wowlan *wow) { struct ath6kl_vif *vif; enum ath6kl_state prev_state; int ret; switch (mode) { case ATH6KL_CFG_SUSPEND_WOW: ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); /* Flush all non control pkts in TX path */ ath6kl_tx_data_cleanup(ar); prev_state = ar->state; ret = ath6kl_wow_suspend(ar, wow); if (ret) { ar->state = prev_state; return ret; } ar->state = ATH6KL_STATE_WOW; break; case ATH6KL_CFG_SUSPEND_DEEPSLEEP: ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); ret = ath6kl_cfg80211_deepsleep_suspend(ar); if (ret) { ath6kl_err("deepsleep suspend failed: %d\n", ret); return ret; } ar->state = ATH6KL_STATE_DEEPSLEEP; break; case ATH6KL_CFG_SUSPEND_CUTPOWER: ath6kl_cfg80211_stop_all(ar); if (ar->state == ATH6KL_STATE_OFF) { ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend hw off, no action for cutpower\n"); break; } ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); ret = ath6kl_init_hw_stop(ar); if (ret) { ath6kl_warn("failed to stop hw during suspend: %d\n", ret); } ar->state = ATH6KL_STATE_CUTPOWER; break; default: break; } list_for_each_entry(vif, &ar->vif_list, list) ath6kl_cfg80211_scan_complete_event(vif, true); return 0; } EXPORT_SYMBOL(ath6kl_cfg80211_suspend); int ath6kl_cfg80211_resume(struct ath6kl *ar) { int ret; switch (ar->state) { case ATH6KL_STATE_WOW: ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); ret = ath6kl_wow_resume(ar); if (ret) { ath6kl_warn("wow mode resume failed: %d\n", ret); return ret; } break; case ATH6KL_STATE_DEEPSLEEP: ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); ret = ath6kl_cfg80211_deepsleep_resume(ar); if (ret) { ath6kl_warn("deep sleep resume failed: %d\n", ret); return ret; } break; case ATH6KL_STATE_CUTPOWER: ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); ret = ath6kl_init_hw_start(ar); if (ret) { ath6kl_warn("Failed to boot hw in resume: %d\n", ret); return ret; } break; default: break; } return 0; } EXPORT_SYMBOL(ath6kl_cfg80211_resume); #ifdef CONFIG_PM /* hif layer decides what suspend mode to use */ static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wow) { struct ath6kl *ar = wiphy_priv(wiphy); ath6kl_recovery_suspend(ar); return ath6kl_hif_suspend(ar, wow); } static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) { struct ath6kl *ar = wiphy_priv(wiphy); int err; err = ath6kl_hif_resume(ar); if (err) return err; ath6kl_recovery_resume(ar); return 0; } /* * FIXME: WOW suspend mode is selected if the host sdio controller supports * both sdio irq wake up and keep power. The target pulls sdio data line to * wake up the host when WOW pattern matches. This causes sdio irq handler * is being called in the host side which internally hits ath6kl's RX path. * * Since sdio interrupt is not disabled, RX path executes even before * the host executes the actual resume operation from PM module. * * In the current scenario,


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