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1 /*
2  * Misc utility routines for WL and Apps
3  * This header file housing the define and function prototype use by
4  * both the wl driver, tools & Apps.
5  *
6  * Permission to use, copy, modify, and/or distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
13  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
15  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  * software in any way with any other Broadcom software provided under a license
18  * other than the GPL, without Broadcom's express prior written consent.
19  *
20  * $Id: bcmwifi.h,v 1.29.6.3 2010-08-03 17:47:04 Exp $
21  */
22 
23 
24 #ifndef	_bcmwifi_h_
25 #define	_bcmwifi_h_
26 
27 
28 
29 typedef uint16 chanspec_t;
30 
31 
32 #define CH_UPPER_SB			0x01
33 #define CH_LOWER_SB			0x02
34 #define CH_EWA_VALID			0x04
35 #define CH_20MHZ_APART			4
36 #define CH_10MHZ_APART			2
37 #define CH_5MHZ_APART			1
38 #define CH_MAX_2G_CHANNEL		14
39 #define WLC_MAX_2G_CHANNEL		CH_MAX_2G_CHANNEL
40 #define	MAXCHANNEL		224
41 
42 #define WL_CHANSPEC_CHAN_MASK		0x00ff
43 #define WL_CHANSPEC_CHAN_SHIFT		0
44 
45 #define WL_CHANSPEC_CTL_SB_MASK		0x0300
46 #define WL_CHANSPEC_CTL_SB_SHIFT	     8
47 #define WL_CHANSPEC_CTL_SB_LOWER	0x0100
48 #define WL_CHANSPEC_CTL_SB_UPPER	0x0200
49 #define WL_CHANSPEC_CTL_SB_NONE		0x0300
50 
51 #define WL_CHANSPEC_BW_MASK		0x0C00
52 #define WL_CHANSPEC_BW_SHIFT		    10
53 #define WL_CHANSPEC_BW_10		0x0400
54 #define WL_CHANSPEC_BW_20		0x0800
55 #define WL_CHANSPEC_BW_40		0x0C00
56 
57 #define WL_CHANSPEC_BAND_MASK		0xf000
58 #define WL_CHANSPEC_BAND_SHIFT		12
59 #define WL_CHANSPEC_BAND_5G		0x1000
60 #define WL_CHANSPEC_BAND_2G		0x2000
61 #define INVCHANSPEC			255
62 
63 
64 #define WF_CHAN_FACTOR_2_4_G		4814
65 #define WF_CHAN_FACTOR_5_G		10000
66 #define WF_CHAN_FACTOR_4_G		8000
67 
68 
69 #define LOWER_20_SB(channel)	(((channel) > CH_10MHZ_APART) ? ((channel) - CH_10MHZ_APART) : 0)
70 #define UPPER_20_SB(channel)	(((channel) < (MAXCHANNEL - CH_10MHZ_APART)) ? \
71 				((channel) + CH_10MHZ_APART) : 0)
72 #define CHSPEC_WLCBANDUNIT(chspec)	(CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX)
73 #define CH20MHZ_CHSPEC(channel)	(chanspec_t)((chanspec_t)(channel) | WL_CHANSPEC_BW_20 | \
74 				WL_CHANSPEC_CTL_SB_NONE | (((channel) <= CH_MAX_2G_CHANNEL) ? \
75 				WL_CHANSPEC_BAND_2G : WL_CHANSPEC_BAND_5G))
76 #define NEXT_20MHZ_CHAN(channel)	(((channel) < (MAXCHANNEL - CH_20MHZ_APART)) ? \
77 					((channel) + CH_20MHZ_APART) : 0)
78 #define CH40MHZ_CHSPEC(channel, ctlsb)	(chanspec_t) \
79 					((channel) | (ctlsb) | WL_CHANSPEC_BW_40 | \
80 					((channel) <= CH_MAX_2G_CHANNEL ? WL_CHANSPEC_BAND_2G : \
81 					WL_CHANSPEC_BAND_5G))
82 #define CHSPEC_CHANNEL(chspec)	((uint8)((chspec) & WL_CHANSPEC_CHAN_MASK))
83 #define CHSPEC_BAND(chspec)	((chspec) & WL_CHANSPEC_BAND_MASK)
84 
85 
86 #define CHSPEC_CTL_SB(chspec)  (chspec & WL_CHANSPEC_CTL_SB_MASK)
87 #define CHSPEC_BW(chspec)      (chspec & WL_CHANSPEC_BW_MASK)
88 
89 #ifdef WL11N_20MHZONLY
90 
91 #define CHSPEC_IS10(chspec)	0
92 #define CHSPEC_IS20(chspec)	1
93 #ifndef CHSPEC_IS40
94 #define CHSPEC_IS40(chspec)	0
95 #endif
96 
97 #else
98 
99 #define CHSPEC_IS10(chspec)	(((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_10)
100 #define CHSPEC_IS20(chspec)	(((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
101 #ifndef CHSPEC_IS40
102 #define CHSPEC_IS40(chspec)	(((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_40)
103 #endif
104 
105 #endif
106 
107 #define CHSPEC_IS20_UNCOND(chspec)	(((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
108 
109 #define CHSPEC_IS5G(chspec)	(((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
110 #define CHSPEC_IS2G(chspec)	(((chspec) & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
111 #define CHSPEC_SB_NONE(chspec)	(((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_NONE)
112 #define CHSPEC_SB_UPPER(chspec)	(((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_UPPER)
113 #define CHSPEC_SB_LOWER(chspec)	(((chspec) & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_LOWER)
114 #define CHSPEC_CTL_CHAN(chspec)  ((CHSPEC_SB_LOWER(chspec)) ? \
115 				  (LOWER_20_SB(((chspec) & WL_CHANSPEC_CHAN_MASK))) : \
116 				  (UPPER_20_SB(((chspec) & WL_CHANSPEC_CHAN_MASK))))
117 #define CHSPEC2WLC_BAND(chspec) (CHSPEC_IS5G(chspec) ? WLC_BAND_5G : WLC_BAND_2G)
118 
119 #define CHANSPEC_STR_LEN    8
120 
121 
122 #define WLC_MAXRATE	108
123 #define WLC_RATE_1M	2
124 #define WLC_RATE_2M	4
125 #define WLC_RATE_5M5	11
126 #define WLC_RATE_11M	22
127 #define WLC_RATE_6M	12
128 #define WLC_RATE_9M	18
129 #define WLC_RATE_12M	24
130 #define WLC_RATE_18M	36
131 #define WLC_RATE_24M	48
132 #define WLC_RATE_36M	72
133 #define WLC_RATE_48M	96
134 #define WLC_RATE_54M	108
135 
136 #define WLC_2G_25MHZ_OFFSET		5
137 
138 
139 extern char * wf_chspec_ntoa(chanspec_t chspec, char *buf);
140 
141 
142 extern chanspec_t wf_chspec_aton(char *a);
143 
144 
145 extern bool wf_chspec_malformed(chanspec_t chanspec);
146 
147 
148 extern uint8 wf_chspec_ctlchan(chanspec_t chspec);
149 
150 
151 extern chanspec_t wf_chspec_ctlchspec(chanspec_t chspec);
152 
153 
154 extern int wf_mhz2channel(uint freq, uint start_factor);
155 
156 
157 extern int wf_channel2mhz(uint channel, uint start_factor);
158 
159 #endif
160