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 
26 struct chnl_txpow_triple {
27 	u8 FirstChnl;
28 	u8  NumChnls;
29 	u8  MaxTxPowerInDbm;
30 };
31 
32 enum 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 
48 struct 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 
63 static 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 
96 void dot11d_init(struct rtllib_device *dev);
97 void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee);
98 void Dot11d_Reset(struct rtllib_device *dev);
99 void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
100 			    u16 CoutryIeLen, u8 *pCoutryIe);
101 u8 DOT11D_GetMaxTxPwrInDbm(struct rtllib_device *dev, u8 Channel);
102 void DOT11D_ScanComplete(struct rtllib_device *dev);
103 int ToLegalChannel(struct rtllib_device *dev, u8 channel);
104 
105 #endif
106