Root/drivers/staging/rtl8192e/dot11d.h

1/******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * This program is distributed in the hope that it will be useful, but WITHOUT
5 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
7 * more details.
8 *
9 * You should have received a copy of the GNU General Public License along with
10 * this program; if not, write to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
12 *
13 * The full GNU General Public License is included in this distribution in the
14 * file called LICENSE.
15 *
16 * Contact Information:
17 * wlanfae <wlanfae@realtek.com>
18******************************************************************************/
19#ifndef __INC_DOT11D_H
20#define __INC_DOT11D_H
21
22#include "rtllib.h"
23
24
25
26struct chnl_txpow_triple {
27    u8 FirstChnl;
28    u8 NumChnls;
29    u8 MaxTxPowerInDbm;
30};
31
32enum dot11d_state {
33    DOT11D_STATE_NONE = 0,
34    DOT11D_STATE_LEARNED,
35    DOT11D_STATE_DONE,
36};
37
38/**
39 * struct rt_dot11d_info * @CountryIeLen: value greater than 0 if @CountryIeBuf contains
40 * valid country information element.
41 * @chanell_map: holds channel values
42 * 0 - invalid,
43 * 1 - valid (active scan),
44 * 2 - valid (passive scan)
45 * @CountryIeSrcAddr - Source AP of the country IE
46 */
47
48struct rt_dot11d_info {
49
50    bool bEnabled;
51
52    u16 CountryIeLen;
53    u8 CountryIeBuf[MAX_IE_LEN];
54    u8 CountryIeSrcAddr[6];
55    u8 CountryIeWatchdog;
56
57    u8 channel_map[MAX_CHANNEL_NUMBER+1];
58    u8 MaxTxPwrDbmList[MAX_CHANNEL_NUMBER+1];
59
60    enum dot11d_state State;
61};
62
63static inline void cpMacAddr(unsigned char *des, unsigned char *src)
64{
65    memcpy(des, src, 6);
66}
67
68#define GET_DOT11D_INFO(__pIeeeDev) \
69     ((struct rt_dot11d_info *)((__pIeeeDev)->pDot11dInfo))
70
71#define IS_DOT11D_ENABLE(__pIeeeDev) \
72     (GET_DOT11D_INFO(__pIeeeDev)->bEnabled)
73#define IS_COUNTRY_IE_VALID(__pIeeeDev) \
74    (GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen > 0)
75
76#define IS_EQUAL_CIE_SRC(__pIeeeDev, __pTa) \
77     eqMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
78#define UPDATE_CIE_SRC(__pIeeeDev, __pTa) \
79    cpMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
80
81#define IS_COUNTRY_IE_CHANGED(__pIeeeDev, __Ie) \
82    (((__Ie).Length == 0 || (__Ie).Length != \
83    GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen) ? \
84    false : (!memcmp(GET_DOT11D_INFO(__pIeeeDev)->CountryIeBuf, \
85    (__Ie).Octet, (__Ie).Length)))
86
87#define CIE_WATCHDOG_TH 1
88#define GET_CIE_WATCHDOG(__pIeeeDev) \
89     (GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog)
90#define RESET_CIE_WATCHDOG(__pIeeeDev) GET_CIE_WATCHDOG(__pIeeeDev) = 0
91#define UPDATE_CIE_WATCHDOG(__pIeeeDev) (++GET_CIE_WATCHDOG(__pIeeeDev))
92
93#define IS_DOT11D_STATE_DONE(__pIeeeDev) \
94    (GET_DOT11D_INFO(__pIeeeDev)->State == DOT11D_STATE_DONE)
95
96void dot11d_init(struct rtllib_device *dev);
97void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee);
98void Dot11d_Reset(struct rtllib_device *dev);
99void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
100                u16 CoutryIeLen, u8 *pCoutryIe);
101u8 DOT11D_GetMaxTxPwrInDbm(struct rtllib_device *dev, u8 Channel);
102void DOT11D_ScanComplete(struct rtllib_device *dev);
103int ToLegalChannel(struct rtllib_device *dev, u8 channel);
104
105#endif
106

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