Commit | Line | Data |
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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 | |
017a92a1 | 24 | |
017a92a1 | 25 | |
017a92a1 | 26 | |
3d99d987 AP |
27 | /* |
28 | * This function handles AP interface specific events generated by firmware. | |
29 | * | |
30 | * Event specific routines are called by this function based | |
31 | * upon the generated event cause. | |
32 | * | |
33 | * | |
34 | * Events supported for AP - | |
35 | * - EVENT_UAP_STA_ASSOC | |
36 | * - EVENT_UAP_STA_DEAUTH | |
37 | * - EVENT_UAP_BSS_ACTIVE | |
38 | * - EVENT_UAP_BSS_START | |
39 | * - EVENT_UAP_BSS_IDLE | |
40 | * - EVENT_UAP_MIC_COUNTERMEASURES: | |
41 | */ | |
42 | int mwifiex_process_uap_event(struct mwifiex_private *priv) | |
43 | { | |
44 | struct mwifiex_adapter *adapter = priv->adapter; | |
017a92a1 | 45 | int len, i; |
3d99d987 AP |
46 | u32 eventcause = adapter->event_cause; |
47 | struct station_info sinfo; | |
48 | struct mwifiex_assoc_event *event; | |
017a92a1 AP |
49 | struct mwifiex_sta_node *node; |
50 | u8 *deauth_mac; | |
5a009adf | 51 | struct host_cmd_ds_11n_batimeout *ba_timeout; |
8dd4372e | 52 | u16 ctrl; |
3d99d987 AP |
53 | |
54 | switch (eventcause) { | |
55 | case EVENT_UAP_STA_ASSOC: | |
56 | memset(&sinfo, 0, sizeof(sinfo)); | |
57 | event = (struct mwifiex_assoc_event *) | |
58 | (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER); | |
59 | if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) { | |
60 | len = -1; | |
61 | ||
62 | if (ieee80211_is_assoc_req(event->frame_control)) | |
63 | len = 0; | |
64 | else if (ieee80211_is_reassoc_req(event->frame_control)) | |
65 | /* There will be ETH_ALEN bytes of | |
66 | * current_ap_addr before the re-assoc ies. | |
67 | */ | |
68 | len = ETH_ALEN; | |
69 | ||
70 | if (len != -1) { | |
71 | sinfo.filled = STATION_INFO_ASSOC_REQ_IES; | |
72 | sinfo.assoc_req_ies = &event->data[len]; | |
73 | len = (u8 *)sinfo.assoc_req_ies - | |
74 | (u8 *)&event->frame_control; | |
75 | sinfo.assoc_req_ies_len = | |
76 | le16_to_cpu(event->len) - (u16)len; | |
77 | } | |
78 | } | |
79 | cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo, | |
80 | GFP_KERNEL); | |
017a92a1 AP |
81 | |
82 | node = mwifiex_add_sta_entry(priv, event->sta_addr); | |
83 | if (!node) { | |
84 | dev_warn(adapter->dev, | |
85 | "could not create station entry!\n"); | |
86 | return -1; | |
87 | } | |
88 | ||
89 | if (!priv->ap_11n_enabled) | |
90 | break; | |
91 | ||
92 | mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies, | |
93 | sinfo.assoc_req_ies_len, node); | |
94 | ||
95 | for (i = 0; i < MAX_NUM_TID; i++) { | |
96 | if (node->is_11n_enabled) | |
97 | node->ampdu_sta[i] = | |
98 | priv->aggr_prio_tbl[i].ampdu_user; | |
99 | else | |
100 | node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED; | |
101 | } | |
102 | memset(node->rx_seq, 0xff, sizeof(node->rx_seq)); | |
3d99d987 AP |
103 | break; |
104 | case EVENT_UAP_STA_DEAUTH: | |
017a92a1 AP |
105 | deauth_mac = adapter->event_body + |
106 | MWIFIEX_UAP_EVENT_EXTRA_HEADER; | |
107 | cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL); | |
108 | ||
3e238a11 AP |
109 | if (priv->ap_11n_enabled) { |
110 | mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac); | |
111 | mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac); | |
112 | } | |
017a92a1 | 113 | mwifiex_del_sta_entry(priv, deauth_mac); |
3d99d987 AP |
114 | break; |
115 | case EVENT_UAP_BSS_IDLE: | |
116 | priv->media_connected = false; | |
47411a06 AP |
117 | if (netif_carrier_ok(priv->netdev)) |
118 | netif_carrier_off(priv->netdev); | |
119 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); | |
120 | ||
3e238a11 | 121 | mwifiex_clean_txrx(priv); |
017a92a1 | 122 | mwifiex_del_all_sta_list(priv); |
3d99d987 AP |
123 | break; |
124 | case EVENT_UAP_BSS_ACTIVE: | |
125 | priv->media_connected = true; | |
47411a06 AP |
126 | if (!netif_carrier_ok(priv->netdev)) |
127 | netif_carrier_on(priv->netdev); | |
128 | mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); | |
3d99d987 AP |
129 | break; |
130 | case EVENT_UAP_BSS_START: | |
131 | dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause); | |
132 | memcpy(priv->netdev->dev_addr, adapter->event_body + 2, | |
133 | ETH_ALEN); | |
134 | break; | |
135 | case EVENT_UAP_MIC_COUNTERMEASURES: | |
136 | /* For future development */ | |
137 | dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause); | |
138 | break; | |
d1cf3b95 | 139 | case EVENT_AMSDU_AGGR_CTRL: |
8dd4372e BZ |
140 | ctrl = le16_to_cpu(*(__le16 *)adapter->event_body); |
141 | dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl); | |
d1cf3b95 AP |
142 | |
143 | if (priv->media_connected) { | |
144 | adapter->tx_buf_size = | |
8dd4372e | 145 | min_t(u16, adapter->curr_tx_buf_size, ctrl); |
d1cf3b95 AP |
146 | dev_dbg(adapter->dev, "event: tx_buf_size %d\n", |
147 | adapter->tx_buf_size); | |
148 | } | |
149 | break; | |
5a009adf AP |
150 | case EVENT_ADDBA: |
151 | dev_dbg(adapter->dev, "event: ADDBA Request\n"); | |
152 | if (priv->media_connected) | |
fa0ecbb9 BZ |
153 | mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP, |
154 | HostCmd_ACT_GEN_SET, 0, | |
155 | adapter->event_body, false); | |
5a009adf AP |
156 | break; |
157 | case EVENT_DELBA: | |
158 | dev_dbg(adapter->dev, "event: DELBA Request\n"); | |
159 | if (priv->media_connected) | |
160 | mwifiex_11n_delete_ba_stream(priv, adapter->event_body); | |
161 | break; | |
162 | case EVENT_BA_STREAM_TIEMOUT: | |
163 | dev_dbg(adapter->dev, "event: BA Stream timeout\n"); | |
164 | if (priv->media_connected) { | |
165 | ba_timeout = (void *)adapter->event_body; | |
166 | mwifiex_11n_ba_stream_timeout(priv, ba_timeout); | |
167 | } | |
168 | break; | |
cc5c1afb AP |
169 | case EVENT_EXT_SCAN_REPORT: |
170 | dev_dbg(adapter->dev, "event: EXT_SCAN Report\n"); | |
171 | if (adapter->ext_scan) | |
172 | return mwifiex_handle_event_ext_scan_report(priv, | |
173 | adapter->event_skb->data); | |
174 | break; | |
3d99d987 AP |
175 | default: |
176 | dev_dbg(adapter->dev, "event: unknown event id: %#x\n", | |
177 | eventcause); | |
178 | break; | |
179 | } | |
180 | ||
181 | return 0; | |
182 | } | |
0f9e9b8b AP |
183 | |
184 | /* This function deletes station entry from associated station list. | |
185 | * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream | |
186 | * tables created for this station are deleted. | |
187 | */ | |
188 | void mwifiex_uap_del_sta_data(struct mwifiex_private *priv, | |
189 | struct mwifiex_sta_node *node) | |
190 | { | |
191 | if (priv->ap_11n_enabled && node->is_11n_enabled) { | |
192 | mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr); | |
193 | mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr); | |
194 | } | |
195 | mwifiex_del_sta_entry(priv, node->mac_addr); | |
196 | ||
197 | return; | |
198 | } |