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 
24 extern int ath6kl_printk(const char *level, const char *fmt, ...);
25 
26 /*
27  * Reflects the version of binary interface exposed by ATH6KL target
28  * firmware. Needs to be incremented by 1 for any change in the firmware
29  * that requires upgrade of the driver on the host side for the change to
30  * work correctly
31  */
32 #define ATH6KL_ABI_VERSION        1
33 
34 #define SIGNAL_QUALITY_METRICS_NUM_MAX    2
35 
36 enum {
37 	SIGNAL_QUALITY_METRICS_SNR = 0,
38 	SIGNAL_QUALITY_METRICS_RSSI,
39 	SIGNAL_QUALITY_METRICS_ALL,
40 };
41 
42 /*
43  * Data Path
44  */
45 
46 #define WMI_MAX_TX_DATA_FRAME_LENGTH	      \
47 	(1500 + sizeof(struct wmi_data_hdr) + \
48 	 sizeof(struct ethhdr) +      \
49 	 sizeof(struct ath6kl_llc_snap_hdr))
50 
51 /* An AMSDU frame */ /* The MAX AMSDU length of AR6003 is 3839 */
52 #define WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH    \
53 	(3840 + sizeof(struct wmi_data_hdr) + \
54 	 sizeof(struct ethhdr) +      \
55 	 sizeof(struct ath6kl_llc_snap_hdr))
56 
57 #define EPPING_ALIGNMENT_PAD			       \
58 	(((sizeof(struct htc_frame_hdr) + 3) & (~0x3)) \
59 	 - sizeof(struct htc_frame_hdr))
60 
61 struct ath6kl_llc_snap_hdr {
62 	u8 dsap;
63 	u8 ssap;
64 	u8 cntl;
65 	u8 org_code[3];
66 	__be16 eth_type;
67 } __packed;
68 
69 enum crypto_type {
70 	NONE_CRYPT          = 0x01,
71 	WEP_CRYPT           = 0x02,
72 	TKIP_CRYPT          = 0x04,
73 	AES_CRYPT           = 0x08,
74 	WAPI_CRYPT          = 0x10,
75 };
76 
77 struct htc_endpoint_credit_dist;
78 struct ath6kl;
79 enum htc_credit_dist_reason;
80 struct ath6kl_htc_credit_info;
81 
82 struct ath6kl *ath6kl_core_alloc(struct device *sdev);
83 int ath6kl_core_init(struct ath6kl *ar);
84 void ath6kl_core_cleanup(struct ath6kl *ar);
85 struct sk_buff *ath6kl_buf_alloc(int size);
86 #endif /* COMMON_H */
87