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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  * Copyright (C) 1999-2010, Broadcom Corporation
      7  *
      8  *      Unless you and Broadcom execute a separate written software license
      9  * agreement governing use of this software, this software is licensed to you
     10  * under the terms of the GNU General Public License version 2 (the "GPL"),
     11  * available at http://www.broadcom.com/licenses/GPLv2.php, with the
     12  * following added to such license:
     13  *
     14  *      As a special exception, the copyright holders of this software give you
     15  * permission to link this software with independent modules, and to copy and
     16  * distribute the resulting executable under terms of your choice, provided that
     17  * you also meet, for each linked independent module, the terms and conditions of
     18  * the license of that module.  An independent module is a module which is not
     19  * derived from this software.  The special exception does not apply to any
     20  * modifications of the software.
     21  *
     22  *      Notwithstanding the above, under no circumstances may you combine this
     23  * software in any way with any other Broadcom software provided under a license
     24  * other than the GPL, without Broadcom's express prior written consent.
     25  * $Id: bcmwifi.h,v 1.15.30.4 2010/03/10 20:10:52 Exp $
     26  */
     27 
     28 
     29 #ifndef	_bcmwifi_h_
     30 #define	_bcmwifi_h_
     31 
     32 
     33 
     34 typedef uint16 chanspec_t;
     35 
     36 
     37 #define CH_UPPER_SB			0x01
     38 #define CH_LOWER_SB			0x02
     39 #define CH_EWA_VALID			0x04
     40 #define CH_20MHZ_APART			4
     41 #define CH_10MHZ_APART			2
     42 #define CH_5MHZ_APART			1
     43 #define CH_MAX_2G_CHANNEL		14
     44 #define WLC_MAX_2G_CHANNEL		CH_MAX_2G_CHANNEL
     45 #define	MAXCHANNEL		224
     46 
     47 #define WL_CHANSPEC_CHAN_MASK		0x00ff
     48 #define WL_CHANSPEC_CHAN_SHIFT		0
     49 
     50 #define WL_CHANSPEC_CTL_SB_MASK		0x0300
     51 #define WL_CHANSPEC_CTL_SB_SHIFT	     8
     52 #define WL_CHANSPEC_CTL_SB_LOWER	0x0100
     53 #define WL_CHANSPEC_CTL_SB_UPPER	0x0200
     54 #define WL_CHANSPEC_CTL_SB_NONE		0x0300
     55 
     56 #define WL_CHANSPEC_BW_MASK		0x0C00
     57 #define WL_CHANSPEC_BW_SHIFT		    10
     58 #define WL_CHANSPEC_BW_10		0x0400
     59 #define WL_CHANSPEC_BW_20		0x0800
     60 #define WL_CHANSPEC_BW_40		0x0C00
     61 
     62 #define WL_CHANSPEC_BAND_MASK		0xf000
     63 #define WL_CHANSPEC_BAND_SHIFT		12
     64 #define WL_CHANSPEC_BAND_5G		0x1000
     65 #define WL_CHANSPEC_BAND_2G		0x2000
     66 #define INVCHANSPEC			255
     67 
     68 
     69 #define WF_CHAN_FACTOR_2_4_G		4814
     70 #define WF_CHAN_FACTOR_5_G		10000
     71 #define WF_CHAN_FACTOR_4_G		8000
     72 
     73 
     74 #define LOWER_20_SB(channel)	((channel > CH_10MHZ_APART) ? (channel - CH_10MHZ_APART) : 0)
     75 #define UPPER_20_SB(channel)	((channel < (MAXCHANNEL - CH_10MHZ_APART)) ? \
     76 				(channel + CH_10MHZ_APART) : 0)
     77 #define CHSPEC_WLCBANDUNIT(chspec)	(CHSPEC_IS5G(chspec) ? BAND_5G_INDEX : BAND_2G_INDEX)
     78 #define CH20MHZ_CHSPEC(channel)	(chanspec_t)((chanspec_t)(channel) | WL_CHANSPEC_BW_20 | \
     79 				WL_CHANSPEC_CTL_SB_NONE | (((channel) <= CH_MAX_2G_CHANNEL) ? \
     80 				WL_CHANSPEC_BAND_2G : WL_CHANSPEC_BAND_5G))
     81 #define NEXT_20MHZ_CHAN(channel)	((channel < (MAXCHANNEL - CH_20MHZ_APART)) ? \
     82 					(channel + CH_20MHZ_APART) : 0)
     83 #define CH40MHZ_CHSPEC(channel, ctlsb)	(chanspec_t) \
     84 					((channel) | (ctlsb) | WL_CHANSPEC_BW_40 | \
     85 					((channel) <= CH_MAX_2G_CHANNEL ? WL_CHANSPEC_BAND_2G : \
     86 					WL_CHANSPEC_BAND_5G))
     87 #define CHSPEC_CHANNEL(chspec)	((uint8)(chspec & WL_CHANSPEC_CHAN_MASK))
     88 #define CHSPEC_BAND(chspec)	(chspec & WL_CHANSPEC_BAND_MASK)
     89 
     90 #ifdef WL20MHZ_ONLY
     91 
     92 #define CHSPEC_CTL_SB(chspec)	WL_CHANSPEC_CTL_SB_NONE
     93 #define CHSPEC_BW(chspec)	WL_CHANSPEC_BW_20
     94 #define CHSPEC_IS10(chspec)	0
     95 #define CHSPEC_IS20(chspec)	1
     96 #ifndef CHSPEC_IS40
     97 #define CHSPEC_IS40(chspec)	0
     98 #endif
     99 
    100 #else
    101 
    102 #define CHSPEC_CTL_SB(chspec)	(chspec & WL_CHANSPEC_CTL_SB_MASK)
    103 #define CHSPEC_BW(chspec)	(chspec & WL_CHANSPEC_BW_MASK)
    104 #define CHSPEC_IS10(chspec)	((chspec & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_10)
    105 #define CHSPEC_IS20(chspec)	((chspec & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_20)
    106 #ifndef CHSPEC_IS40
    107 #define CHSPEC_IS40(chspec)	(((chspec) & WL_CHANSPEC_BW_MASK) == WL_CHANSPEC_BW_40)
    108 #endif
    109 
    110 #endif
    111 
    112 #define CHSPEC_IS5G(chspec)	((chspec & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_5G)
    113 #define CHSPEC_IS2G(chspec)	((chspec & WL_CHANSPEC_BAND_MASK) == WL_CHANSPEC_BAND_2G)
    114 #define CHSPEC_SB_NONE(chspec)	((chspec & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_NONE)
    115 #define CHSPEC_SB_UPPER(chspec)	((chspec & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_UPPER)
    116 #define CHSPEC_SB_LOWER(chspec)	((chspec & WL_CHANSPEC_CTL_SB_MASK) == WL_CHANSPEC_CTL_SB_LOWER)
    117 #define CHSPEC_CTL_CHAN(chspec)  ((CHSPEC_SB_LOWER(chspec)) ? \
    118 				  (LOWER_20_SB(((chspec) & WL_CHANSPEC_CHAN_MASK))) : \
    119 				  (UPPER_20_SB(((chspec) & WL_CHANSPEC_CHAN_MASK))))
    120 
    121 #define CHSPEC2WLC_BAND(chspec) (CHSPEC_IS5G((chspec))? WLC_BAND_5G: WLC_BAND_2G)
    122 
    123 #define CHANSPEC_STR_LEN    8
    124 
    125 
    126 #define WLC_MAXRATE	108
    127 #define WLC_RATE_1M	2
    128 #define WLC_RATE_2M	4
    129 #define WLC_RATE_5M5	11
    130 #define WLC_RATE_11M	22
    131 #define WLC_RATE_6M	12
    132 #define WLC_RATE_9M	18
    133 #define WLC_RATE_12M	24
    134 #define WLC_RATE_18M	36
    135 #define WLC_RATE_24M	48
    136 #define WLC_RATE_36M	72
    137 #define WLC_RATE_48M	96
    138 #define WLC_RATE_54M	108
    139 
    140 #define WLC_2G_25MHZ_OFFSET		5
    141 
    142 
    143 extern char * wf_chspec_ntoa(chanspec_t chspec, char *buf);
    144 
    145 
    146 extern chanspec_t wf_chspec_aton(char *a);
    147 
    148 
    149 extern int wf_mhz2channel(uint freq, uint start_factor);
    150 
    151 
    152 extern int wf_channel2mhz(uint channel, uint start_factor);
    153 
    154 #endif
    155