| /* |
| * Copyright (c) 2004-2011 Atheros Communications Inc. |
| * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "core.h" |
| #include "hif-ops.h" |
| #include "cfg80211.h" |
| #include "target.h" |
| #include "debug.h" |
| |
| struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) |
| { |
| struct ath6kl *ar = vif->ar; |
| struct ath6kl_sta *conn = NULL; |
| u8 i, max_conn; |
| |
| max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; |
| |
| for (i = 0; i < max_conn; i++) { |
| if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { |
| conn = &ar->sta_list[i]; |
| break; |
| } |
| } |
| |
| return conn; |
| } |
| |
| struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) |
| { |
| struct ath6kl_sta *conn = NULL; |
| u8 ctr; |
| |
| for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { |
| if (ar->sta_list[ctr].aid == aid) { |
| conn = &ar->sta_list[ctr]; |
| break; |
| } |
| } |
| return conn; |
| } |
| |
| static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid, |
| u8 *wpaie, size_t ielen, u8 keymgmt, |
| u8 ucipher, u8 auth, u8 apsd_info) |
| { |
| struct ath6kl *ar = vif->ar; |
| struct ath6kl_sta *sta; |
| u8 free_slot; |
| |
| free_slot = aid - 1; |
| |
| sta = &ar->sta_list[free_slot]; |
| memcpy(sta->mac, mac, ETH_ALEN); |
| if (ielen <= ATH6KL_MAX_IE) |
| memcpy(sta->wpa_ie, wpaie, ielen); |
| sta->aid = aid; |
| sta->keymgmt = keymgmt; |
| sta->ucipher = ucipher; |
| sta->auth = auth; |
| sta->apsd_info = apsd_info; |
| |
| ar->sta_list_index = ar->sta_list_index | (1 << free_slot); |
| ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); |
| aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn); |
| } |
| |
| static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) |
| { |
| struct ath6kl_sta *sta = &ar->sta_list[i]; |
| |
| /* empty the queued pkts in the PS queue if any */ |
| spin_lock_bh(&sta->psq_lock); |
| skb_queue_purge(&sta->psq); |
| skb_queue_purge(&sta->apsdq); |
| spin_unlock_bh(&sta->psq_lock); |
| |
| memset(&ar->ap_stats.sta[sta->aid - 1], 0, |
| sizeof(struct wmi_per_sta_stat)); |
| memset(sta->mac, 0, ETH_ALEN); |
| memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); |
| sta->aid = 0; |
| sta->sta_flags = 0; |
| |
| ar->sta_list_index = ar->sta_list_index & ~(1 << i); |
| aggr_reset_state(sta->aggr_conn); |
| } |
| |
| static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) |
| { |
| u8 i, removed = 0; |
| |
| if (is_zero_ether_addr(mac)) |
| return removed; |
| |
| if (is_broadcast_ether_addr(mac)) { |
| ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); |
| |
| for (i = 0; i < AP_MAX_NUM_STA; i++) { |
| if (!is_zero_ether_addr(ar->sta_list[i].mac)) { |
| ath6kl_sta_cleanup(ar, i); |
| removed = 1; |
| } |
| } |
| } else { |
| for (i = 0; i < AP_MAX_NUM_STA; i++) { |
| if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { |
| ath6kl_dbg(ATH6KL_DBG_TRC, |
| "deleting station %pM aid=%d reason=%d\n", |
| mac, ar->sta_list[i].aid, reason); |
| ath6kl_sta_cleanup(ar, i); |
| removed = 1; |
| break; |
| } |
| } |
| } |
| |
| return removed; |
| } |
| |
| enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) |
| { |
| struct ath6kl *ar = devt; |
| return ar->ac2ep_map[ac]; |
| } |
| |
| struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) |
| { |
| struct ath6kl_cookie *cookie; |
| |
| cookie = ar->cookie_list; |
| if (cookie != NULL) { |
| ar->cookie_list = cookie->arc_list_next; |
| ar->cookie_count--; |
| } |
| |
| return cookie; |
| } |
| |
| void ath6kl_cookie_init(struct ath6kl *ar) |
| { |
| u32 i; |
| |
| ar->cookie_list = NULL; |
| ar->cookie_count = 0; |
| |
| memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); |
| |
| for (i = 0; i < MAX_COOKIE_NUM; i++) |
| ath6kl_free_cookie(ar, &ar->cookie_mem[i]); |
| } |
| |
| void ath6kl_cookie_cleanup(struct ath6kl *ar) |
| { |
| ar->cookie_list = NULL; |
| ar->cookie_count = 0; |
| } |
| |
| void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) |
| { |
| /* Insert first */ |
| |
| if (!ar || !cookie) |
| return; |
| |
| cookie->arc_list_next = ar->cookie_list; |
| ar->cookie_list = cookie; |
| ar->cookie_count++; |
| } |
| |
| /* |
| * Read from the hardware through its diagnostic window. No cooperation |
| * from the firmware is required for this. |
| */ |
| int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) |
| { |
| int ret; |
| |
| ret = ath6kl_hif_diag_read32(ar, address, value); |
| if (ret) { |
| ath6kl_warn("failed to read32 through diagnose window: %d\n", |
| ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Write to the ATH6KL through its diagnostic window. No cooperation from |
| * the Target is required for this. |
| */ |
| int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) |
| { |
| int ret; |
| |
| ret = ath6kl_hif_diag_write32(ar, address, value); |
| |
| if (ret) { |
| ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", |
| address, value); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) |
| { |
| u32 count, *buf = data; |
| int ret; |
| |
| if (WARN_ON(length % 4)) |
| return -EINVAL; |
| |
| for (count = 0; count < length / 4; count++, address += 4) { |
| ret = ath6kl_diag_read32(ar, address, &buf[count]); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) |
| { |
| u32 count; |
| __le32 *buf = data; |
| int ret; |
| |
| if (WARN_ON(length % 4)) |
| return -EINVAL; |
| |
| for (count = 0; count < length / 4; count++, address += 4) { |
| ret = ath6kl_diag_write32(ar, address, buf[count]); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| int ath6kl_read_fwlogs(struct ath6kl *ar) |
| { |
| struct ath6kl_dbglog_hdr debug_hdr; |
| struct ath6kl_dbglog_buf debug_buf; |
| u32 address, length, dropped, firstbuf, debug_hdr_addr; |
| int ret, loop; |
| u8 *buf; |
| |
| buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| address = TARG_VTOP(ar->target_type, |
| ath6kl_get_hi_item_addr(ar, |
| HI_ITEM(hi_dbglog_hdr))); |
| |
| ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); |
| if (ret) |
| goto out; |
| |
| /* Get the contents of the ring buffer */ |
| if (debug_hdr_addr == 0) { |
| ath6kl_warn("Invalid address for debug_hdr_addr\n"); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| address = TARG_VTOP(ar->target_type, debug_hdr_addr); |
| ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); |
| |
| address = TARG_VTOP(ar->target_type, |
| le32_to_cpu(debug_hdr.dbuf_addr)); |
| firstbuf = address; |
| dropped = le32_to_cpu(debug_hdr.dropped); |
| ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); |
| |
| loop = 100; |
| |
| do { |
| address = TARG_VTOP(ar->target_type, |
| le32_to_cpu(debug_buf.buffer_addr)); |
| length = le32_to_cpu(debug_buf.length); |
| |
| if (length != 0 && (le32_to_cpu(debug_buf.length) <= |
| le32_to_cpu(debug_buf.bufsize))) { |
| length = ALIGN(length, 4); |
| |
| ret = ath6kl_diag_read(ar, address, |
| buf, length); |
| if (ret) |
| goto out; |
| |
| ath6kl_debug_fwlog_event(ar, buf, length); |
| } |
| |
| address = TARG_VTOP(ar->target_type, |
| le32_to_cpu(debug_buf.next)); |
| ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); |
| if (ret) |
| goto out; |
| |
| loop--; |
| |
| if (WARN_ON(loop == 0)) { |
| ret = -ETIMEDOUT; |
| goto out; |
| } |
| } while (address != firstbuf); |
| |
| out: |
| kfree(buf); |
| |
| return ret; |
| } |
| |
| /* FIXME: move to a better place, target.h? */ |
| #define AR6003_RESET_CONTROL_ADDRESS 0x00004000 |
| #define AR6004_RESET_CONTROL_ADDRESS 0x00004000 |
| |
| void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, |
| bool wait_fot_compltn, bool cold_reset) |
| { |
| int status = 0; |
| u32 address; |
| __le32 data; |
| |
| if (target_type != TARGET_TYPE_AR6003 && |
| target_type != TARGET_TYPE_AR6004) |
| return; |
| |
| data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : |
| cpu_to_le32(RESET_CONTROL_MBOX_RST); |
| |
| switch (target_type) { |
| case TARGET_TYPE_AR6003: |
| address = AR6003_RESET_CONTROL_ADDRESS; |
| break; |
| case TARGET_TYPE_AR6004: |
| address = AR6004_RESET_CONTROL_ADDRESS; |
| break; |
| } |
| |
| status = ath6kl_diag_write32(ar, address, data); |
| |
| if (status) |
| ath6kl_err("failed to reset target\n"); |
| } |
| |
| static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) |
| { |
| u8 index; |
| u8 keyusage; |
| |
| for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) { |
| if (vif->wep_key_list[index].key_len) { |
| keyusage = GROUP_USAGE; |
| if (index == vif->def_txkey_index) |
| keyusage |= TX_USAGE; |
| |
| ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, |
| index, |
| WEP_CRYPT, |
| keyusage, |
| vif->wep_key_list[index].key_len, |
| NULL, 0, |
| vif->wep_key_list[index].key, |
| KEY_OP_INIT_VAL, NULL, |
| NO_SYNC_WMIFLAG); |
| } |
| } |
| } |
| |
| void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) |
| { |
| struct ath6kl *ar = vif->ar; |
| struct ath6kl_req_key *ik; |
| int res; |
| u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; |
| |
| ik = &ar->ap_mode_bkey; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); |
| |
| switch (vif->auth_mode) { |
| case NONE_AUTH: |
| if (vif->prwise_crypto == WEP_CRYPT) |
| ath6kl_install_static_wep_keys(vif); |
| if (!ik->valid || ik->key_type != WAPI_CRYPT) |
| break; |
| /* for WAPI, we need to set the delayed group key, continue: */ |
| case WPA_PSK_AUTH: |
| case WPA2_PSK_AUTH: |
| case (WPA_PSK_AUTH | WPA2_PSK_AUTH): |
| if (!ik->valid) |
| break; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for " |
| "the initial group key for AP mode\n"); |
| memset(key_rsc, 0, sizeof(key_rsc)); |
| res = ath6kl_wmi_addkey_cmd( |
| ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, |
| GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, |
| ik->key, |
| KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); |
| if (res) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " |
| "addkey failed: %d\n", res); |
| } |
| break; |
| } |
| |
| ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); |
| set_bit(CONNECTED, &vif->flags); |
| netif_carrier_on(vif->ndev); |
| } |
| |
| void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, |
| u8 keymgmt, u8 ucipher, u8 auth, |
| u8 assoc_req_len, u8 *assoc_info, u8 apsd_info) |
| { |
| u8 *ies = NULL, *wpa_ie = NULL, *pos; |
| size_t ies_len = 0; |
| struct station_info sinfo; |
| |
| ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); |
| |
| if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { |
| struct ieee80211_mgmt *mgmt = |
| (struct ieee80211_mgmt *) assoc_info; |
| if (ieee80211_is_assoc_req(mgmt->frame_control) && |
| assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + |
| sizeof(mgmt->u.assoc_req)) { |
| ies = mgmt->u.assoc_req.variable; |
| ies_len = assoc_info + assoc_req_len - ies; |
| } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && |
| assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) |
| + sizeof(mgmt->u.reassoc_req)) { |
| ies = mgmt->u.reassoc_req.variable; |
| ies_len = assoc_info + assoc_req_len - ies; |
| } |
| } |
| |
| pos = ies; |
| while (pos && pos + 1 < ies + ies_len) { |
| if (pos + 2 + pos[1] > ies + ies_len) |
| break; |
| if (pos[0] == WLAN_EID_RSN) |
| wpa_ie = pos; /* RSN IE */ |
| else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && |
| pos[1] >= 4 && |
| pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { |
| if (pos[5] == 0x01) |
| wpa_ie = pos; /* WPA IE */ |
| else if (pos[5] == 0x04) { |
| wpa_ie = pos; /* WPS IE */ |
| break; /* overrides WPA/RSN IE */ |
| } |
| } else if (pos[0] == 0x44 && wpa_ie == NULL) { |
| /* |
| * Note: WAPI Parameter Set IE re-uses Element ID that |
| * was officially allocated for BSS AC Access Delay. As |
| * such, we need to be a bit more careful on when |
| * parsing the frame. However, BSS AC Access Delay |
| * element is not supposed to be included in |
| * (Re)Association Request frames, so this should not |
| * cause problems. |
| */ |
| wpa_ie = pos; /* WAPI IE */ |
| break; |
| } |
| pos += 2 + pos[1]; |
| } |
| |
| ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie, |
| wpa_ie ? 2 + wpa_ie[1] : 0, |
| keymgmt, ucipher, auth, apsd_info); |
| |
| /* send event to application */ |
| memset(&sinfo, 0, sizeof(sinfo)); |
| |
| /* TODO: sinfo.generation */ |
| |
| sinfo.assoc_req_ies = ies; |
| sinfo.assoc_req_ies_len = ies_len; |
| sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; |
| |
| cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); |
| |
| netif_wake_queue(vif->ndev); |
| } |
| |
| void disconnect_timer_handler(unsigned long ptr) |
| { |
| struct net_device *dev = (struct net_device *)ptr; |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| ath6kl_init_profile_info(vif); |
| ath6kl_disconnect(vif); |
| } |
| |
| void ath6kl_disconnect(struct ath6kl_vif *vif) |
| { |
| if (test_bit(CONNECTED, &vif->flags) || |
| test_bit(CONNECT_PEND, &vif->flags)) { |
| ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); |
| /* |
| * Disconnect command is issued, clear the connect pending |
| * flag. The connected flag will be cleared in |
| * disconnect event notification. |
| */ |
| clear_bit(CONNECT_PEND, &vif->flags); |
| } |
| } |
| |
| /* WMI Event handlers */ |
| |
| void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) |
| { |
| struct ath6kl *ar = devt; |
| |
| memcpy(ar->mac_addr, datap, ETH_ALEN); |
| ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", |
| __func__, ar->mac_addr); |
| |
| ar->version.wlan_ver = sw_ver; |
| ar->version.abi_ver = abi_ver; |
| |
| snprintf(ar->wiphy->fw_version, |
| sizeof(ar->wiphy->fw_version), |
| "%u.%u.%u.%u", |
| (ar->version.wlan_ver & 0xf0000000) >> 28, |
| (ar->version.wlan_ver & 0x0f000000) >> 24, |
| (ar->version.wlan_ver & 0x00ff0000) >> 16, |
| (ar->version.wlan_ver & 0x0000ffff)); |
| |
| /* indicate to the waiting thread that the ready event was received */ |
| set_bit(WMI_READY, &ar->flag); |
| wake_up(&ar->event_wq); |
| } |
| |
| void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) |
| { |
| struct ath6kl *ar = vif->ar; |
| bool aborted = false; |
| |
| if (status != WMI_SCAN_STATUS_SUCCESS) |
| aborted = true; |
| |
| ath6kl_cfg80211_scan_complete_event(vif, aborted); |
| |
| if (!ar->usr_bss_filter) { |
| clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
| ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
| NONE_BSS_FILTER, 0); |
| } |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status); |
| } |
| |
| void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, |
| u16 listen_int, u16 beacon_int, |
| enum network_type net_type, u8 beacon_ie_len, |
| u8 assoc_req_len, u8 assoc_resp_len, |
| u8 *assoc_info) |
| { |
| struct ath6kl *ar = vif->ar; |
| |
| ath6kl_cfg80211_connect_event(vif, channel, bssid, |
| listen_int, beacon_int, |
| net_type, beacon_ie_len, |
| assoc_req_len, assoc_resp_len, |
| assoc_info); |
| |
| memcpy(vif->bssid, bssid, sizeof(vif->bssid)); |
| vif->bss_ch = channel; |
| |
| if ((vif->nw_type == INFRA_NETWORK)) { |
| ar->listen_intvl_b = listen_int; |
| ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, |
| 0, ar->listen_intvl_b); |
| } |
| |
| netif_wake_queue(vif->ndev); |
| |
| /* Update connect & link status atomically */ |
| spin_lock_bh(&vif->if_lock); |
| set_bit(CONNECTED, &vif->flags); |
| clear_bit(CONNECT_PEND, &vif->flags); |
| netif_carrier_on(vif->ndev); |
| spin_unlock_bh(&vif->if_lock); |
| |
| aggr_reset_state(vif->aggr_cntxt->aggr_conn); |
| vif->reconnect_flag = 0; |
| |
| if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { |
| memset(ar->node_map, 0, sizeof(ar->node_map)); |
| ar->node_num = 0; |
| ar->next_ep_id = ENDPOINT_2; |
| } |
| |
| if (!ar->usr_bss_filter) { |
| set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
| ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
| CURRENT_BSS_FILTER, 0); |
| } |
| } |
| |
| void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) |
| { |
| struct ath6kl_sta *sta; |
| struct ath6kl *ar = vif->ar; |
| u8 tsc[6]; |
| |
| /* |
| * For AP case, keyid will have aid of STA which sent pkt with |
| * MIC error. Use this aid to get MAC & send it to hostapd. |
| */ |
| if (vif->nw_type == AP_NETWORK) { |
| sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); |
| if (!sta) |
| return; |
| |
| ath6kl_dbg(ATH6KL_DBG_TRC, |
| "ap tkip mic error received from aid=%d\n", keyid); |
| |
| memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ |
| cfg80211_michael_mic_failure(vif->ndev, sta->mac, |
| NL80211_KEYTYPE_PAIRWISE, keyid, |
| tsc, GFP_KERNEL); |
| } else |
| ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); |
| |
| } |
| |
| static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
| { |
| struct wmi_target_stats *tgt_stats = |
| (struct wmi_target_stats *) ptr; |
| struct ath6kl *ar = vif->ar; |
| struct target_stats *stats = &vif->target_stats; |
| struct tkip_ccmp_stats *ccmp_stats; |
| u8 ac; |
| |
| if (len < sizeof(*tgt_stats)) |
| return; |
| |
| ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); |
| |
| stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); |
| stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); |
| stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); |
| stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); |
| stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); |
| stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); |
| stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); |
| stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); |
| stats->tx_rts_success_cnt += |
| le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); |
| |
| for (ac = 0; ac < WMM_NUM_AC; ac++) |
| stats->tx_pkt_per_ac[ac] += |
| le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); |
| |
| stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); |
| stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); |
| stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); |
| stats->tx_mult_retry_cnt += |
| le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); |
| stats->tx_rts_fail_cnt += |
| le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); |
| stats->tx_ucast_rate = |
| ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); |
| |
| stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); |
| stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); |
| stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); |
| stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); |
| stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); |
| stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); |
| stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); |
| stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); |
| stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); |
| stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); |
| stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); |
| stats->rx_key_cache_miss += |
| le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); |
| stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); |
| stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); |
| stats->rx_ucast_rate = |
| ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); |
| |
| ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; |
| |
| stats->tkip_local_mic_fail += |
| le32_to_cpu(ccmp_stats->tkip_local_mic_fail); |
| stats->tkip_cnter_measures_invoked += |
| le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); |
| stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); |
| |
| stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); |
| stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); |
| |
| stats->pwr_save_fail_cnt += |
| le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); |
| stats->noise_floor_calib = |
| a_sle32_to_cpu(tgt_stats->noise_floor_calib); |
| |
| stats->cs_bmiss_cnt += |
| le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); |
| stats->cs_low_rssi_cnt += |
| le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); |
| stats->cs_connect_cnt += |
| le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); |
| stats->cs_discon_cnt += |
| le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); |
| |
| stats->cs_ave_beacon_rssi = |
| a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); |
| |
| stats->cs_last_roam_msec = |
| tgt_stats->cserv_stats.cs_last_roam_msec; |
| stats->cs_snr = tgt_stats->cserv_stats.cs_snr; |
| stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); |
| |
| stats->lq_val = le32_to_cpu(tgt_stats->lq_val); |
| |
| stats->wow_pkt_dropped += |
| le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); |
| stats->wow_host_pkt_wakeups += |
| tgt_stats->wow_stats.wow_host_pkt_wakeups; |
| stats->wow_host_evt_wakeups += |
| tgt_stats->wow_stats.wow_host_evt_wakeups; |
| stats->wow_evt_discarded += |
| le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); |
| |
| if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { |
| clear_bit(STATS_UPDATE_PEND, &vif->flags); |
| wake_up(&ar->event_wq); |
| } |
| } |
| |
| static void ath6kl_add_le32(__le32 *var, __le32 val) |
| { |
| *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); |
| } |
| |
| void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
| { |
| struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; |
| struct ath6kl *ar = vif->ar; |
| struct wmi_ap_mode_stat *ap = &ar->ap_stats; |
| struct wmi_per_sta_stat *st_ap, *st_p; |
| u8 ac; |
| |
| if (vif->nw_type == AP_NETWORK) { |
| if (len < sizeof(*p)) |
| return; |
| |
| for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { |
| st_ap = &ap->sta[ac]; |
| st_p = &p->sta[ac]; |
| |
| ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); |
| ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); |
| ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); |
| ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); |
| ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); |
| ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); |
| ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); |
| ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); |
| } |
| |
| } else { |
| ath6kl_update_target_stats(vif, ptr, len); |
| } |
| } |
| |
| void ath6kl_wakeup_event(void *dev) |
| { |
| struct ath6kl *ar = (struct ath6kl *) dev; |
| |
| wake_up(&ar->event_wq); |
| } |
| |
| void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) |
| { |
| struct ath6kl *ar = (struct ath6kl *) devt; |
| |
| ar->tx_pwr = tx_pwr; |
| wake_up(&ar->event_wq); |
| } |
| |
| void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) |
| { |
| struct ath6kl_sta *conn; |
| struct sk_buff *skb; |
| bool psq_empty = false; |
| struct ath6kl *ar = vif->ar; |
| |
| conn = ath6kl_find_sta_by_aid(ar, aid); |
| |
| if (!conn) |
| return; |
| /* |
| * Send out a packet queued on ps queue. When the ps queue |
| * becomes empty update the PVB for this station. |
| */ |
| spin_lock_bh(&conn->psq_lock); |
| psq_empty = skb_queue_empty(&conn->psq); |
| spin_unlock_bh(&conn->psq_lock); |
| |
| if (psq_empty) |
| /* TODO: Send out a NULL data frame */ |
| return; |
| |
| spin_lock_bh(&conn->psq_lock); |
| skb = skb_dequeue(&conn->psq); |
| spin_unlock_bh(&conn->psq_lock); |
| |
| conn->sta_flags |= STA_PS_POLLED; |
| ath6kl_data_tx(skb, vif->ndev); |
| conn->sta_flags &= ~STA_PS_POLLED; |
| |
| spin_lock_bh(&conn->psq_lock); |
| psq_empty = skb_queue_empty(&conn->psq); |
| spin_unlock_bh(&conn->psq_lock); |
| |
| if (psq_empty) |
| ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); |
| } |
| |
| void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) |
| { |
| bool mcastq_empty = false; |
| struct sk_buff *skb; |
| struct ath6kl *ar = vif->ar; |
| |
| /* |
| * If there are no associated STAs, ignore the DTIM expiry event. |
| * There can be potential race conditions where the last associated |
| * STA may disconnect & before the host could clear the 'Indicate |
| * DTIM' request to the firmware, the firmware would have just |
| * indicated a DTIM expiry event. The race is between 'clear DTIM |
| * expiry cmd' going from the host to the firmware & the DTIM |
| * expiry event happening from the firmware to the host. |
| */ |
| if (!ar->sta_list_index) |
| return; |
| |
| spin_lock_bh(&ar->mcastpsq_lock); |
| mcastq_empty = skb_queue_empty(&ar->mcastpsq); |
| spin_unlock_bh(&ar->mcastpsq_lock); |
| |
| if (mcastq_empty) |
| return; |
| |
| /* set the STA flag to dtim_expired for the frame to go out */ |
| set_bit(DTIM_EXPIRED, &vif->flags); |
| |
| spin_lock_bh(&ar->mcastpsq_lock); |
| while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { |
| spin_unlock_bh(&ar->mcastpsq_lock); |
| |
| ath6kl_data_tx(skb, vif->ndev); |
| |
| spin_lock_bh(&ar->mcastpsq_lock); |
| } |
| spin_unlock_bh(&ar->mcastpsq_lock); |
| |
| clear_bit(DTIM_EXPIRED, &vif->flags); |
| |
| /* clear the LSB of the BitMapCtl field of the TIM IE */ |
| ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); |
| } |
| |
| void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, |
| u8 assoc_resp_len, u8 *assoc_info, |
| u16 prot_reason_status) |
| { |
| struct ath6kl *ar = vif->ar; |
| |
| if (vif->nw_type == AP_NETWORK) { |
| if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) |
| return; |
| |
| /* if no more associated STAs, empty the mcast PS q */ |
| if (ar->sta_list_index == 0) { |
| spin_lock_bh(&ar->mcastpsq_lock); |
| skb_queue_purge(&ar->mcastpsq); |
| spin_unlock_bh(&ar->mcastpsq_lock); |
| |
| /* clear the LSB of the TIM IE's BitMapCtl field */ |
| if (test_bit(WMI_READY, &ar->flag)) |
| ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, |
| MCAST_AID, 0); |
| } |
| |
| if (!is_broadcast_ether_addr(bssid)) { |
| /* send event to application */ |
| cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); |
| } |
| |
| if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { |
| memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); |
| clear_bit(CONNECTED, &vif->flags); |
| } |
| return; |
| } |
| |
| ath6kl_cfg80211_disconnect_event(vif, reason, bssid, |
| assoc_resp_len, assoc_info, |
| prot_reason_status); |
| |
| aggr_reset_state(vif->aggr_cntxt->aggr_conn); |
| |
| del_timer(&vif->disconnect_timer); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason); |
| |
| /* |
| * If the event is due to disconnect cmd from the host, only they |
| * the target would stop trying to connect. Under any other |
| * condition, target would keep trying to connect. |
| */ |
| if (reason == DISCONNECT_CMD) { |
| if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) |
| ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
| NONE_BSS_FILTER, 0); |
| } else { |
| set_bit(CONNECT_PEND, &vif->flags); |
| if (((reason == ASSOC_FAILED) && |
| (prot_reason_status == 0x11)) || |
| ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) |
| && (vif->reconnect_flag == 1))) { |
| set_bit(CONNECTED, &vif->flags); |
| return; |
| } |
| } |
| |
| /* update connect & link status atomically */ |
| spin_lock_bh(&vif->if_lock); |
| clear_bit(CONNECTED, &vif->flags); |
| netif_carrier_off(vif->ndev); |
| spin_unlock_bh(&vif->if_lock); |
| |
| if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) |
| vif->reconnect_flag = 0; |
| |
| if (reason != CSERV_DISCONNECT) |
| ar->user_key_ctrl = 0; |
| |
| netif_stop_queue(vif->ndev); |
| memset(vif->bssid, 0, sizeof(vif->bssid)); |
| vif->bss_ch = 0; |
| |
| ath6kl_tx_data_cleanup(ar); |
| } |
| |
| struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) |
| { |
| struct ath6kl_vif *vif; |
| |
| spin_lock_bh(&ar->list_lock); |
| if (list_empty(&ar->vif_list)) { |
| spin_unlock_bh(&ar->list_lock); |
| return NULL; |
| } |
| |
| vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); |
| |
| spin_unlock_bh(&ar->list_lock); |
| |
| return vif; |
| } |
| |
| static int ath6kl_open(struct net_device *dev) |
| { |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| set_bit(WLAN_ENABLED, &vif->flags); |
| |
| if (test_bit(CONNECTED, &vif->flags)) { |
| netif_carrier_on(dev); |
| netif_wake_queue(dev); |
| } else |
| netif_carrier_off(dev); |
| |
| return 0; |
| } |
| |
| static int ath6kl_close(struct net_device *dev) |
| { |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| netif_stop_queue(dev); |
| |
| ath6kl_cfg80211_stop(vif); |
| |
| clear_bit(WLAN_ENABLED, &vif->flags); |
| |
| return 0; |
| } |
| |
| static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) |
| { |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| return &vif->net_stats; |
| } |
| |
| static int ath6kl_set_features(struct net_device *dev, |
| netdev_features_t features) |
| { |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| struct ath6kl *ar = vif->ar; |
| int err = 0; |
| |
| if ((features & NETIF_F_RXCSUM) && |
| (ar->rx_meta_ver != WMI_META_VERSION_2)) { |
| ar->rx_meta_ver = WMI_META_VERSION_2; |
| err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, |
| vif->fw_vif_idx, |
| ar->rx_meta_ver, 0, 0); |
| if (err) { |
| dev->features = features & ~NETIF_F_RXCSUM; |
| return err; |
| } |
| } else if (!(features & NETIF_F_RXCSUM) && |
| (ar->rx_meta_ver == WMI_META_VERSION_2)) { |
| ar->rx_meta_ver = 0; |
| err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, |
| vif->fw_vif_idx, |
| ar->rx_meta_ver, 0, 0); |
| if (err) { |
| dev->features = features | NETIF_F_RXCSUM; |
| return err; |
| } |
| |
| } |
| |
| return err; |
| } |
| |
| static void ath6kl_set_multicast_list(struct net_device *ndev) |
| { |
| struct ath6kl_vif *vif = netdev_priv(ndev); |
| bool mc_all_on = false, mc_all_off = false; |
| int mc_count = netdev_mc_count(ndev); |
| struct netdev_hw_addr *ha; |
| bool found; |
| struct ath6kl_mc_filter *mc_filter, *tmp; |
| struct list_head mc_filter_new; |
| int ret; |
| |
| if (!test_bit(WMI_READY, &vif->ar->flag) || |
| !test_bit(WLAN_ENABLED, &vif->flags)) |
| return; |
| |
| mc_all_on = !!(ndev->flags & IFF_PROMISC) || |
| !!(ndev->flags & IFF_ALLMULTI) || |
| !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST); |
| |
| mc_all_off = !(ndev->flags & IFF_MULTICAST) || mc_count == 0; |
| |
| if (mc_all_on || mc_all_off) { |
| /* Enable/disable all multicast */ |
| ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast filter\n", |
| mc_all_on ? "enabling" : "disabling"); |
| ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx, |
| mc_all_on); |
| if (ret) |
| ath6kl_warn("Failed to %s multicast receive\n", |
| mc_all_on ? "enable" : "disable"); |
| return; |
| } |
| |
| list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { |
| found = false; |
| netdev_for_each_mc_addr(ha, ndev) { |
| if (memcmp(ha->addr, mc_filter->hw_addr, |
| ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { |
| found = true; |
| break; |
| } |
| } |
| |
| if (!found) { |
| /* |
| * Delete the filter which was previously set |
| * but not in the new request. |
| */ |
| ath6kl_dbg(ATH6KL_DBG_TRC, |
| "Removing %pM from multicast filter\n", |
| mc_filter->hw_addr); |
| ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, |
| vif->fw_vif_idx, mc_filter->hw_addr, |
| false); |
| if (ret) { |
| ath6kl_warn("Failed to remove multicast filter:%pM\n", |
| mc_filter->hw_addr); |
| return; |
| } |
| |
| list_del(&mc_filter->list); |
| kfree(mc_filter); |
| } |
| } |
| |
| INIT_LIST_HEAD(&mc_filter_new); |
| |
| netdev_for_each_mc_addr(ha, ndev) { |
| found = false; |
| list_for_each_entry(mc_filter, &vif->mc_filter, list) { |
| if (memcmp(ha->addr, mc_filter->hw_addr, |
| ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { |
| found = true; |
| break; |
| } |
| } |
| |
| if (!found) { |
| mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter), |
| GFP_ATOMIC); |
| if (!mc_filter) { |
| WARN_ON(1); |
| goto out; |
| } |
| |
| memcpy(mc_filter->hw_addr, ha->addr, |
| ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE); |
| /* Set the multicast filter */ |
| ath6kl_dbg(ATH6KL_DBG_TRC, |
| "Adding %pM to multicast filter list\n", |
| mc_filter->hw_addr); |
| ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, |
| vif->fw_vif_idx, mc_filter->hw_addr, |
| true); |
| if (ret) { |
| ath6kl_warn("Failed to add multicast filter :%pM\n", |
| mc_filter->hw_addr); |
| kfree(mc_filter); |
| goto out; |
| } |
| |
| list_add_tail(&mc_filter->list, &mc_filter_new); |
| } |
| } |
| |
| out: |
| list_splice_tail(&mc_filter_new, &vif->mc_filter); |
| } |
| |
| static const struct net_device_ops ath6kl_netdev_ops = { |
| .ndo_open = ath6kl_open, |
| .ndo_stop = ath6kl_close, |
| .ndo_start_xmit = ath6kl_data_tx, |
| .ndo_get_stats = ath6kl_get_stats, |
| .ndo_set_features = ath6kl_set_features, |
| .ndo_set_rx_mode = ath6kl_set_multicast_list, |
| }; |
| |
| void init_netdev(struct net_device *dev) |
| { |
| dev->netdev_ops = &ath6kl_netdev_ops; |
| dev->destructor = free_netdev; |
| dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; |
| |
| dev->needed_headroom = ETH_HLEN; |
| dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + |
| sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH |
| + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; |
| |
| return; |
| } |