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-rw-r--r--drivers/net/wireless/mwifiex/11n.h161
1 files changed, 161 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/11n.h b/drivers/net/wireless/mwifiex/11n.h
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1/*
2 * Marvell Wireless LAN device driver: 802.11n
3 *
4 * Copyright (C) 2011, Marvell International Ltd.
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#ifndef _MWIFIEX_11N_H_
21#define _MWIFIEX_11N_H_
22
23#include "11n_aggr.h"
24#include "11n_rxreorder.h"
25#include "wmm.h"
26
27int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
28 struct host_cmd_ds_command *resp);
29int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
30 struct host_cmd_ds_command *resp);
31int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp,
32 void *data_buf);
33int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd,
34 u16 cmd_action, void *data_buf);
35
36int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
37 struct mwifiex_bssdescriptor *bss_desc,
38 u8 **buffer);
39void mwifiex_cfg_tx_buf(struct mwifiex_private *priv,
40 struct mwifiex_bssdescriptor *bss_desc);
41void mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
42 struct mwifiex_ie_types_htcap *);
43int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
44 u16 action, int *htcap_cfg);
45void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
46 struct mwifiex_tx_ba_stream_tbl
47 *tx_tbl);
48void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
49struct mwifiex_tx_ba_stream_tbl *mwifiex_11n_get_tx_ba_stream_tbl(struct
50 mwifiex_private
51 *priv, int tid,
52 u8 *ra);
53void mwifiex_11n_create_tx_ba_stream_tbl(struct mwifiex_private *priv, u8 *ra,
54 int tid,
55 enum mwifiex_ba_status ba_status);
56int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
57int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
58 int initiator);
59void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
60int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
61 struct mwifiex_ds_rx_reorder_tbl *buf);
62int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
63 struct mwifiex_ds_tx_ba_stream_tbl *buf);
64int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp,
65 void *data_buf);
66int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
67 struct host_cmd_ds_command *cmd,
68 int cmd_action, void *data_buf);
69int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
70 int cmd_action, void *data_buf);
71
72/*
73 * This function checks whether AMPDU is allowed or not for a particular TID.
74 */
75static inline u8
76mwifiex_is_ampdu_allowed(struct mwifiex_private *priv, int tid)
77{
78 return ((priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)
79 ? true : false);
80}
81
82/*
83 * This function checks whether AMSDU is allowed or not for a particular TID.
84 */
85static inline u8
86mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
87{
88 return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)
89 && ((priv->is_data_rate_auto)
90 || !((priv->bitmap_rates[2]) & 0x03)))
91 ? true : false);
92}
93
94/*
95 * This function checks whether a space is available for new BA stream or not.
96 */
97static inline u8 mwifiex_space_avail_for_new_ba_stream(
98 struct mwifiex_adapter *adapter)
99{
100 struct mwifiex_private *priv;
101 u8 i;
102 u32 ba_stream_num = 0;
103
104 for (i = 0; i < adapter->priv_num; i++) {
105 priv = adapter->priv[i];
106 if (priv)
107 ba_stream_num += mwifiex_wmm_list_len(
108 (struct list_head *)
109 &priv->tx_ba_stream_tbl_ptr);
110 }
111
112 return ((ba_stream_num <
113 MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
114}
115
116/*
117 * This function finds the correct Tx BA stream to delete.
118 *
119 * Upon successfully locating, both the TID and the RA are returned.
120 */
121static inline u8
122mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
123 int *ptid, u8 *ra)
124{
125 int tid;
126 u8 ret = false;
127 struct mwifiex_tx_ba_stream_tbl *tx_tbl;
128 unsigned long flags;
129
130 tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
131
132 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
133 list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
134 if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
135 tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
136 *ptid = tx_tbl->tid;
137 memcpy(ra, tx_tbl->ra, ETH_ALEN);
138 ret = true;
139 }
140 }
141 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
142
143 return ret;
144}
145
146/*
147 * This function checks whether BA stream is set up or not.
148 */
149static inline int
150mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
151 struct mwifiex_ra_list_tbl *ptr, int tid)
152{
153 struct mwifiex_tx_ba_stream_tbl *tx_tbl;
154
155 tx_tbl = mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, ptr->ra);
156 if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
157 return true;
158
159 return false;
160}
161#endif /* !_MWIFIEX_11N_H_ */
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