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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