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-rw-r--r--drivers/net/wireless/ath/ath6kl/common.h180
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diff --git a/drivers/net/wireless/ath/ath6kl/common.h b/drivers/net/wireless/ath/ath6kl/common.h
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1/*
2 * Copyright (c) 2010-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#ifndef COMMON_H
18#define COMMON_H
19
20#include <linux/netdevice.h>
21
22#define ATH6KL_MAX_IE 256
23
24extern int ath6kl_printk(const char *level, const char *fmt, ...);
25
26#define A_CACHE_LINE_PAD 128
27
28/*
29 * Reflects the version of binary interface exposed by ATH6KL target
30 * firmware. Needs to be incremented by 1 for any change in the firmware
31 * that requires upgrade of the driver on the host side for the change to
32 * work correctly
33 */
34#define ATH6KL_ABI_VERSION 1
35
36#define SIGNAL_QUALITY_METRICS_NUM_MAX 2
37
38enum {
39 SIGNAL_QUALITY_METRICS_SNR = 0,
40 SIGNAL_QUALITY_METRICS_RSSI,
41 SIGNAL_QUALITY_METRICS_ALL,
42};
43
44/*
45 * Data Path
46 */
47
48#define WMI_MAX_TX_DATA_FRAME_LENGTH \
49 (1500 + sizeof(struct wmi_data_hdr) + \
50 sizeof(struct ethhdr) + \
51 sizeof(struct ath6kl_llc_snap_hdr))
52
53/* An AMSDU frame */ /* The MAX AMSDU length of AR6003 is 3839 */
54#define WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH \
55 (3840 + sizeof(struct wmi_data_hdr) + \
56 sizeof(struct ethhdr) + \
57 sizeof(struct ath6kl_llc_snap_hdr))
58
59#define EPPING_ALIGNMENT_PAD \
60 (((sizeof(struct htc_frame_hdr) + 3) & (~0x3)) \
61 - sizeof(struct htc_frame_hdr))
62
63struct ath6kl_llc_snap_hdr {
64 u8 dsap;
65 u8 ssap;
66 u8 cntl;
67 u8 org_code[3];
68 __be16 eth_type;
69} __packed;
70
71enum crypto_type {
72 NONE_CRYPT = 0x01,
73 WEP_CRYPT = 0x02,
74 TKIP_CRYPT = 0x04,
75 AES_CRYPT = 0x08,
76};
77
78#define ATH6KL_NODE_HASHSIZE 32
79/* simple hash is enough for variation of macaddr */
80#define ATH6KL_NODE_HASH(addr) \
81 (((const u8 *)(addr))[ETH_ALEN - 1] % \
82 ATH6KL_NODE_HASHSIZE)
83
84/*
85 * Table of ath6kl_node instances. Each ieee80211com
86 * has at least one for holding the scan candidates.
87 * When operating as an access point or in ibss mode there
88 * is a second table for associated stations or neighbors.
89 */
90struct ath6kl_node_table {
91 spinlock_t nt_nodelock; /* on node table */
92 struct bss *nt_node_first; /* information of all nodes */
93 struct bss *nt_node_last; /* information of all nodes */
94 struct bss *nt_hash[ATH6KL_NODE_HASHSIZE];
95 const char *nt_name; /* for debugging */
96 u32 nt_node_age; /* node aging time */
97};
98
99#define WLAN_NODE_INACT_TIMEOUT_MSEC 120000
100#define WLAN_NODE_INACT_CNT 4
101
102struct ath6kl_common_ie {
103 u16 ie_chan;
104 u8 *ie_tstamp;
105 u8 *ie_ssid;
106 u8 *ie_rates;
107 u8 *ie_xrates;
108 u8 *ie_country;
109 u8 *ie_wpa;
110 u8 *ie_rsn;
111 u8 *ie_wmm;
112 u8 *ie_ath;
113 u16 ie_capInfo;
114 u16 ie_beaconInt;
115 u8 *ie_tim;
116 u8 *ie_chswitch;
117 u8 ie_erp;
118 u8 *ie_wsc;
119 u8 *ie_htcap;
120 u8 *ie_htop;
121};
122
123struct bss {
124 u8 ni_macaddr[ETH_ALEN];
125 u8 ni_snr;
126 s16 ni_rssi;
127 struct bss *ni_list_next;
128 struct bss *ni_list_prev;
129 struct bss *ni_hash_next;
130 struct bss *ni_hash_prev;
131 struct ath6kl_common_ie ni_cie;
132 u8 *ni_buf;
133 u16 ni_framelen;
134 struct ath6kl_node_table *ni_table;
135 u32 ni_refcnt;
136
137 u32 ni_tstamp;
138 u32 ni_actcnt;
139};
140
141struct htc_endpoint_credit_dist;
142struct ath6kl;
143enum htc_credit_dist_reason;
144struct htc_credit_state_info;
145
146struct bss *wlan_node_alloc(int wh_size);
147void wlan_node_free(struct bss *ni);
148void wlan_setup_node(struct ath6kl_node_table *nt, struct bss *ni,
149 const u8 *mac_addr);
150struct bss *wlan_find_node(struct ath6kl_node_table *nt,
151 const u8 *mac_addr);
152void wlan_node_reclaim(struct ath6kl_node_table *nt, struct bss *ni);
153void wlan_free_allnodes(struct ath6kl_node_table *nt);
154void wlan_iterate_nodes(struct ath6kl_node_table *nt, void *arg);
155
156void wlan_node_table_init(struct ath6kl_node_table *nt);
157void wlan_node_table_cleanup(struct ath6kl_node_table *nt);
158
159void wlan_refresh_inactive_nodes(struct ath6kl *ar);
160
161struct bss *wlan_find_ssid_node(struct ath6kl_node_table *nt, u8 *ssid,
162 u32 ssid_len, bool is_wpa2, bool match_ssid);
163
164void wlan_node_return(struct ath6kl_node_table *nt, struct bss *ni);
165
166int ath6k_setup_credit_dist(void *htc_handle,
167 struct htc_credit_state_info *cred_info);
168void ath6k_credit_distribute(struct htc_credit_state_info *cred_inf,
169 struct list_head *epdist_list,
170 enum htc_credit_dist_reason reason);
171void ath6k_credit_init(struct htc_credit_state_info *cred_inf,
172 struct list_head *ep_list,
173 int tot_credits);
174void ath6k_seek_credits(struct htc_credit_state_info *cred_inf,
175 struct htc_endpoint_credit_dist *ep_dist);
176struct ath6kl *ath6kl_core_alloc(struct device *sdev);
177int ath6kl_core_init(struct ath6kl *ar);
178int ath6kl_unavail_ev(struct ath6kl *ar);
179struct sk_buff *ath6kl_buf_alloc(int size);
180#endif /* COMMON_H */
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