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
27 int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
28 struct host_cmd_ds_command *resp);
29 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
30 struct host_cmd_ds_command *resp);
31 int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp,
32 struct mwifiex_ds_11n_tx_cfg *tx_cfg);
33 int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action,
34 struct mwifiex_ds_11n_tx_cfg *txcfg);
35
36 int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
37 struct mwifiex_bssdescriptor *bss_desc,
38 u8 **buffer);
39 void mwifiex_cfg_tx_buf(struct mwifiex_private *priv,
40 struct mwifiex_bssdescriptor *bss_desc);
41 void mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
42 struct mwifiex_ie_types_htcap *);
43 int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
44 u16 action, int *htcap_cfg);
45 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
46 struct mwifiex_tx_ba_stream_tbl
47 *tx_tbl);
48 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
49 struct mwifiex_tx_ba_stream_tbl *mwifiex_11n_get_tx_ba_stream_tbl(struct
50 mwifiex_private
51 *priv, int tid,
52 u8 *ra);
53 void mwifiex_11n_create_tx_ba_stream_tbl(struct mwifiex_private *priv, u8 *ra,
54 int tid,
55 enum mwifiex_ba_status ba_status);
56 int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
57 int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
58 int initiator);
59 void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
60 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
61 struct mwifiex_ds_rx_reorder_tbl *buf);
62 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
63 struct mwifiex_ds_tx_ba_stream_tbl *buf);
64 int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp,
65 struct mwifiex_ds_11n_amsdu_aggr_ctrl
66 *amsdu_aggr_ctrl);
67 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
68 struct host_cmd_ds_command *cmd,
69 int cmd_action, u16 *buf_size);
70 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
71 int cmd_action,
72 struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
73
74 /*
75 * This function checks whether AMPDU is allowed or not for a particular TID.
76 */
77 static inline u8
mwifiex_is_ampdu_allowed(struct mwifiex_private * priv,int tid)78 mwifiex_is_ampdu_allowed(struct mwifiex_private *priv, int tid)
79 {
80 return ((priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)
81 ? true : false);
82 }
83
84 /*
85 * This function checks whether AMSDU is allowed or not for a particular TID.
86 */
87 static inline u8
mwifiex_is_amsdu_allowed(struct mwifiex_private * priv,int tid)88 mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
89 {
90 return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)
91 && ((priv->is_data_rate_auto)
92 || !((priv->bitmap_rates[2]) & 0x03)))
93 ? true : false);
94 }
95
96 /*
97 * This function checks whether a space is available for new BA stream or not.
98 */
mwifiex_space_avail_for_new_ba_stream(struct mwifiex_adapter * adapter)99 static inline u8 mwifiex_space_avail_for_new_ba_stream(
100 struct mwifiex_adapter *adapter)
101 {
102 struct mwifiex_private *priv;
103 u8 i;
104 u32 ba_stream_num = 0;
105
106 for (i = 0; i < adapter->priv_num; i++) {
107 priv = adapter->priv[i];
108 if (priv)
109 ba_stream_num += mwifiex_wmm_list_len(
110 (struct list_head *)
111 &priv->tx_ba_stream_tbl_ptr);
112 }
113
114 return ((ba_stream_num <
115 MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
116 }
117
118 /*
119 * This function finds the correct Tx BA stream to delete.
120 *
121 * Upon successfully locating, both the TID and the RA are returned.
122 */
123 static inline u8
mwifiex_find_stream_to_delete(struct mwifiex_private * priv,int ptr_tid,int * ptid,u8 * ra)124 mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
125 int *ptid, u8 *ra)
126 {
127 int tid;
128 u8 ret = false;
129 struct mwifiex_tx_ba_stream_tbl *tx_tbl;
130 unsigned long flags;
131
132 tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
133
134 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
135 list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
136 if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
137 tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
138 *ptid = tx_tbl->tid;
139 memcpy(ra, tx_tbl->ra, ETH_ALEN);
140 ret = true;
141 }
142 }
143 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
144
145 return ret;
146 }
147
148 /*
149 * This function checks whether BA stream is set up or not.
150 */
151 static inline int
mwifiex_is_ba_stream_setup(struct mwifiex_private * priv,struct mwifiex_ra_list_tbl * ptr,int tid)152 mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
153 struct mwifiex_ra_list_tbl *ptr, int tid)
154 {
155 struct mwifiex_tx_ba_stream_tbl *tx_tbl;
156
157 tx_tbl = mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, ptr->ra);
158 if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
159 return true;
160
161 return false;
162 }
163 #endif /* !_MWIFIEX_11N_H_ */
164