Merge remote-tracking branch 'lightnvm/for-next'
[deliverable/linux.git] / drivers / net / wireless / marvell / mwifiex / uap_event.c
CommitLineData
3d99d987
AP
1/*
2 * Marvell Wireless LAN device driver: AP event handling
3 *
65da33f5 4 * Copyright (C) 2012-2014, Marvell International Ltd.
3d99d987
AP
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20#include "decl.h"
21#include "main.h"
5a009adf 22#include "11n.h"
3d99d987 23
debfc600 24#define MWIFIEX_BSS_START_EVT_FIX_SIZE 12
017a92a1 25
debfc600
AP
26static int mwifiex_check_uap_capabilties(struct mwifiex_private *priv,
27 struct sk_buff *event)
28{
29 int evt_len;
30 u8 *curr;
31 u16 tlv_len;
32 struct mwifiex_ie_types_data *tlv_hdr;
33 struct ieee_types_wmm_parameter *wmm_param_ie = NULL;
34 int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK;
35
36 priv->wmm_enabled = false;
37 skb_pull(event, MWIFIEX_BSS_START_EVT_FIX_SIZE);
38 evt_len = event->len;
39 curr = event->data;
40
41 mwifiex_dbg_dump(priv->adapter, EVT_D, "uap capabilties:",
42 event->data, event->len);
43
6c631732
AK
44 skb_push(event, MWIFIEX_BSS_START_EVT_FIX_SIZE);
45
debfc600
AP
46 while ((evt_len >= sizeof(tlv_hdr->header))) {
47 tlv_hdr = (struct mwifiex_ie_types_data *)curr;
48 tlv_len = le16_to_cpu(tlv_hdr->header.len);
49
50 if (evt_len < tlv_len + sizeof(tlv_hdr->header))
51 break;
52
53 switch (le16_to_cpu(tlv_hdr->header.type)) {
54 case WLAN_EID_HT_CAPABILITY:
55 priv->ap_11n_enabled = true;
56 break;
57
58 case WLAN_EID_VHT_CAPABILITY:
59 priv->ap_11ac_enabled = true;
60 break;
61
62 case WLAN_EID_VENDOR_SPECIFIC:
63 /* Point the regular IEEE IE 2 bytes into the Marvell IE
64 * and setup the IEEE IE type and length byte fields
65 */
66 wmm_param_ie = (void *)(curr + 2);
67 wmm_param_ie->vend_hdr.len = (u8)tlv_len;
68 wmm_param_ie->vend_hdr.element_id =
69 WLAN_EID_VENDOR_SPECIFIC;
70 mwifiex_dbg(priv->adapter, EVENT,
71 "info: check uap capabilities:\t"
72 "wmm parameter set count: %d\n",
73 wmm_param_ie->qos_info_bitmap & mask);
74
75 mwifiex_wmm_setup_ac_downgrade(priv);
76 priv->wmm_enabled = true;
77 mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie);
78 break;
79
80 default:
81 break;
82 }
83
84 curr += (tlv_len + sizeof(tlv_hdr->header));
85 evt_len -= (tlv_len + sizeof(tlv_hdr->header));
86 }
017a92a1 87
debfc600
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88 return 0;
89}
017a92a1 90
3d99d987
AP
91/*
92 * This function handles AP interface specific events generated by firmware.
93 *
94 * Event specific routines are called by this function based
95 * upon the generated event cause.
96 *
97 *
98 * Events supported for AP -
99 * - EVENT_UAP_STA_ASSOC
100 * - EVENT_UAP_STA_DEAUTH
101 * - EVENT_UAP_BSS_ACTIVE
102 * - EVENT_UAP_BSS_START
103 * - EVENT_UAP_BSS_IDLE
104 * - EVENT_UAP_MIC_COUNTERMEASURES:
105 */
106int mwifiex_process_uap_event(struct mwifiex_private *priv)
107{
108 struct mwifiex_adapter *adapter = priv->adapter;
017a92a1 109 int len, i;
3d99d987
AP
110 u32 eventcause = adapter->event_cause;
111 struct station_info sinfo;
112 struct mwifiex_assoc_event *event;
017a92a1
AP
113 struct mwifiex_sta_node *node;
114 u8 *deauth_mac;
5a009adf 115 struct host_cmd_ds_11n_batimeout *ba_timeout;
8dd4372e 116 u16 ctrl;
3d99d987
AP
117
118 switch (eventcause) {
119 case EVENT_UAP_STA_ASSOC:
120 memset(&sinfo, 0, sizeof(sinfo));
121 event = (struct mwifiex_assoc_event *)
122 (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
123 if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
124 len = -1;
125
126 if (ieee80211_is_assoc_req(event->frame_control))
127 len = 0;
128 else if (ieee80211_is_reassoc_req(event->frame_control))
129 /* There will be ETH_ALEN bytes of
130 * current_ap_addr before the re-assoc ies.
131 */
132 len = ETH_ALEN;
133
134 if (len != -1) {
3d99d987
AP
135 sinfo.assoc_req_ies = &event->data[len];
136 len = (u8 *)sinfo.assoc_req_ies -
137 (u8 *)&event->frame_control;
138 sinfo.assoc_req_ies_len =
139 le16_to_cpu(event->len) - (u16)len;
140 }
141 }
142 cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
143 GFP_KERNEL);
017a92a1
AP
144
145 node = mwifiex_add_sta_entry(priv, event->sta_addr);
146 if (!node) {
acebe8c1
ZL
147 mwifiex_dbg(adapter, ERROR,
148 "could not create station entry!\n");
017a92a1
AP
149 return -1;
150 }
151
152 if (!priv->ap_11n_enabled)
153 break;
154
155 mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies,
156 sinfo.assoc_req_ies_len, node);
157
158 for (i = 0; i < MAX_NUM_TID; i++) {
159 if (node->is_11n_enabled)
160 node->ampdu_sta[i] =
161 priv->aggr_prio_tbl[i].ampdu_user;
162 else
163 node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
164 }
165 memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
3d99d987
AP
166 break;
167 case EVENT_UAP_STA_DEAUTH:
017a92a1
AP
168 deauth_mac = adapter->event_body +
169 MWIFIEX_UAP_EVENT_EXTRA_HEADER;
170 cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);
171
3e238a11
AP
172 if (priv->ap_11n_enabled) {
173 mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
174 mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
175 }
9817fffb 176 mwifiex_wmm_del_peer_ra_list(priv, deauth_mac);
017a92a1 177 mwifiex_del_sta_entry(priv, deauth_mac);
3d99d987
AP
178 break;
179 case EVENT_UAP_BSS_IDLE:
180 priv->media_connected = false;
5c894633 181 priv->port_open = false;
3e238a11 182 mwifiex_clean_txrx(priv);
017a92a1 183 mwifiex_del_all_sta_list(priv);
3d99d987
AP
184 break;
185 case EVENT_UAP_BSS_ACTIVE:
186 priv->media_connected = true;
5c894633 187 priv->port_open = true;
3d99d987
AP
188 break;
189 case EVENT_UAP_BSS_START:
acebe8c1
ZL
190 mwifiex_dbg(adapter, EVENT,
191 "AP EVENT: event id: %#x\n", eventcause);
5c894633 192 priv->port_open = false;
3d99d987
AP
193 memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
194 ETH_ALEN);
cbf6e055
XH
195 if (priv->hist_data)
196 mwifiex_hist_data_reset(priv);
debfc600 197 mwifiex_check_uap_capabilties(priv, adapter->event_skb);
3d99d987
AP
198 break;
199 case EVENT_UAP_MIC_COUNTERMEASURES:
200 /* For future development */
acebe8c1
ZL
201 mwifiex_dbg(adapter, EVENT,
202 "AP EVENT: event id: %#x\n", eventcause);
3d99d987 203 break;
d1cf3b95 204 case EVENT_AMSDU_AGGR_CTRL:
8dd4372e 205 ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
acebe8c1
ZL
206 mwifiex_dbg(adapter, EVENT,
207 "event: AMSDU_AGGR_CTRL %d\n", ctrl);
d1cf3b95
AP
208
209 if (priv->media_connected) {
210 adapter->tx_buf_size =
8dd4372e 211 min_t(u16, adapter->curr_tx_buf_size, ctrl);
acebe8c1
ZL
212 mwifiex_dbg(adapter, EVENT,
213 "event: tx_buf_size %d\n",
214 adapter->tx_buf_size);
d1cf3b95
AP
215 }
216 break;
5a009adf 217 case EVENT_ADDBA:
acebe8c1 218 mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
5a009adf 219 if (priv->media_connected)
fa0ecbb9
BZ
220 mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
221 HostCmd_ACT_GEN_SET, 0,
222 adapter->event_body, false);
5a009adf
AP
223 break;
224 case EVENT_DELBA:
acebe8c1 225 mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
5a009adf
AP
226 if (priv->media_connected)
227 mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
228 break;
229 case EVENT_BA_STREAM_TIEMOUT:
acebe8c1 230 mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
5a009adf
AP
231 if (priv->media_connected) {
232 ba_timeout = (void *)adapter->event_body;
233 mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
234 }
235 break;
cc5c1afb 236 case EVENT_EXT_SCAN_REPORT:
acebe8c1 237 mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
cc5c1afb
AP
238 if (adapter->ext_scan)
239 return mwifiex_handle_event_ext_scan_report(priv,
240 adapter->event_skb->data);
241 break;
808bbebc 242 case EVENT_TX_STATUS_REPORT:
acebe8c1 243 mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
808bbebc 244 mwifiex_parse_tx_status_event(priv, adapter->event_body);
76c504ca
AP
245 break;
246 case EVENT_PS_SLEEP:
acebe8c1 247 mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
76c504ca
AP
248
249 adapter->ps_state = PS_STATE_PRE_SLEEP;
250
251 mwifiex_check_ps_cond(adapter);
252 break;
253
254 case EVENT_PS_AWAKE:
acebe8c1 255 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
76c504ca
AP
256 if (!adapter->pps_uapsd_mode &&
257 priv->media_connected && adapter->sleep_period.period) {
258 adapter->pps_uapsd_mode = true;
acebe8c1
ZL
259 mwifiex_dbg(adapter, EVENT,
260 "event: PPS/UAPSD mode activated\n");
76c504ca
AP
261 }
262 adapter->tx_lock_flag = false;
263 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
264 if (mwifiex_check_last_packet_indication(priv)) {
735ab6bf
ZL
265 if (adapter->data_sent ||
266 (adapter->if_ops.is_port_ready &&
267 !adapter->if_ops.is_port_ready(priv))) {
76c504ca
AP
268 adapter->ps_state = PS_STATE_AWAKE;
269 adapter->pm_wakeup_card_req = false;
270 adapter->pm_wakeup_fw_try = false;
271 break;
272 }
273 if (!mwifiex_send_null_packet
274 (priv,
275 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
276 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
277 adapter->ps_state =
278 PS_STATE_SLEEP;
279 return 0;
280 }
281 }
282 adapter->ps_state = PS_STATE_AWAKE;
283 adapter->pm_wakeup_card_req = false;
284 adapter->pm_wakeup_fw_try = false;
0a694d68 285 break;
76c504ca 286
0a694d68 287 case EVENT_CHANNEL_REPORT_RDY:
acebe8c1 288 mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
0a694d68 289 mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb);
808bbebc 290 break;
3b57c1a7 291 case EVENT_RADAR_DETECTED:
acebe8c1 292 mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
3b57c1a7
AP
293 mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
294 break;
d219b7eb
CC
295 case EVENT_BT_COEX_WLAN_PARA_CHANGE:
296 dev_err(adapter->dev, "EVENT: BT coex wlan param update\n");
297 mwifiex_bt_coex_wlan_param_update_event(priv,
298 adapter->event_skb);
299 break;
ddd7ceb3
AP
300 case EVENT_TX_DATA_PAUSE:
301 mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
302 mwifiex_process_tx_pause_event(priv, adapter->event_skb);
303 break;
8d6b538a
AP
304
305 case EVENT_MULTI_CHAN_INFO:
306 mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
307 mwifiex_process_multi_chan_event(priv, adapter->event_skb);
308 break;
99ffe72c
XH
309 case EVENT_RXBA_SYNC:
310 dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
311 mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
312 adapter->event_skb->len -
313 sizeof(eventcause));
314 break;
3d99d987 315 default:
acebe8c1
ZL
316 mwifiex_dbg(adapter, EVENT,
317 "event: unknown event id: %#x\n", eventcause);
3d99d987
AP
318 break;
319 }
320
321 return 0;
322}
0f9e9b8b
AP
323
324/* This function deletes station entry from associated station list.
325 * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream
326 * tables created for this station are deleted.
327 */
328void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
329 struct mwifiex_sta_node *node)
330{
331 if (priv->ap_11n_enabled && node->is_11n_enabled) {
332 mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr);
333 mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr);
334 }
335 mwifiex_del_sta_entry(priv, node->mac_addr);
336
337 return;
338}
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