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gerrit-public.fairphone.software / kernel / msm-5.4 / bdcd81707973cf8aa9305337166f8ee842a050d4 / . / drivers / net / wireless / ath / ath6kl / common.h
blob: 0a3a1d80d0a49c3b2ff72f76cd18cdec3aa6b6a5 [file] [log] [blame]
Kalle Valobdcd8172011-07-18 00:22:30 +0300[diff] [blame^]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 void *nt_wmi; /* back reference */
92 spinlock_t nt_nodelock; /* on node table */
93 struct bss *nt_node_first; /* information of all nodes */
94 struct bss *nt_node_last; /* information of all nodes */
95 struct bss *nt_hash[ATH6KL_NODE_HASHSIZE];
96 const char *nt_name; /* for debugging */
97 u32 nt_node_age; /* node aging time */
98};
99
100#define WLAN_NODE_INACT_TIMEOUT_MSEC 120000
101#define WLAN_NODE_INACT_CNT 4
102
103struct ath6kl_common_ie {
104 u16 ie_chan;
105 u8 *ie_tstamp;
106 u8 *ie_ssid;
107 u8 *ie_rates;
108 u8 *ie_xrates;
109 u8 *ie_country;
110 u8 *ie_wpa;
111 u8 *ie_rsn;
112 u8 *ie_wmm;
113 u8 *ie_ath;
114 u16 ie_capInfo;
115 u16 ie_beaconInt;
116 u8 *ie_tim;
117 u8 *ie_chswitch;
118 u8 ie_erp;
119 u8 *ie_wsc;
120 u8 *ie_htcap;
121 u8 *ie_htop;
122};
123
124struct bss {
125 u8 ni_macaddr[ETH_ALEN];
126 u8 ni_snr;
127 s16 ni_rssi;
128 struct bss *ni_list_next;
129 struct bss *ni_list_prev;
130 struct bss *ni_hash_next;
131 struct bss *ni_hash_prev;
132 struct ath6kl_common_ie ni_cie;
133 u8 *ni_buf;
134 u16 ni_framelen;
135 struct ath6kl_node_table *ni_table;
136 u32 ni_refcnt;
137
138 u32 ni_tstamp;
139 u32 ni_actcnt;
140};
141
142struct htc_endpoint_credit_dist;
143struct ath6kl;
144enum htc_credit_dist_reason;
145struct htc_credit_state_info;
146
147struct bss *wlan_node_alloc(int wh_size);
148void wlan_node_free(struct bss *ni);
149void wlan_setup_node(struct ath6kl_node_table *nt, struct bss *ni,
150 const u8 *mac_addr);
151struct bss *wlan_find_node(struct ath6kl_node_table *nt,
152 const u8 *mac_addr);
153void wlan_node_reclaim(struct ath6kl_node_table *nt, struct bss *ni);
154void wlan_free_allnodes(struct ath6kl_node_table *nt);
155void wlan_iterate_nodes(struct ath6kl_node_table *nt,
156 void (*f) (void *arg, struct bss *),
157 void *arg);
158
159void wlan_node_table_init(void *wmip, struct ath6kl_node_table *nt);
160void wlan_node_table_cleanup(struct ath6kl_node_table *nt);
161
162void wlan_refresh_inactive_nodes(struct ath6kl_node_table *nt);
163
164struct bss *wlan_find_ssid_node(struct ath6kl_node_table *nt, u8 *ssid,
165 u32 ssid_len, bool is_wpa2, bool match_ssid);
166
167void wlan_node_return(struct ath6kl_node_table *nt, struct bss *ni);
168
169int ath6k_setup_credit_dist(void *htc_handle,
170 struct htc_credit_state_info *cred_info);
171void ath6k_credit_distribute(struct htc_credit_state_info *cred_inf,
172 struct list_head *epdist_list,
173 enum htc_credit_dist_reason reason);
174void ath6k_credit_init(struct htc_credit_state_info *cred_inf,
175 struct list_head *ep_list,
176 int tot_credits);
177void ath6k_seek_credits(struct htc_credit_state_info *cred_inf,
178 struct htc_endpoint_credit_dist *ep_dist);
179struct ath6kl *ath6kl_core_alloc(struct device *sdev);
180int ath6kl_core_init(struct ath6kl *ar);
181int ath6kl_unavail_ev(struct ath6kl *ar);
182struct sk_buff *ath6kl_buf_alloc(int size);
183#endif /* COMMON_H */