1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 *
19 ******************************************************************************/
20 #define _RTW_RF_C_
21
22 #include <osdep_service.h>
23 #include <drv_types.h>
24 #include <recv_osdep.h>
25 #include <xmit_osdep.h>
26
27
28 struct ch_freq {
29 u32 channel;
30 u32 frequency;
31 };
32
33 static struct ch_freq ch_freq_map[] = {
34 {1, 2412}, {2, 2417}, {3, 2422}, {4, 2427}, {5, 2432},
35 {6, 2437}, {7, 2442}, {8, 2447}, {9, 2452}, {10, 2457},
36 {11, 2462}, {12, 2467}, {13, 2472}, {14, 2484},
37 /* UNII */
38 {36, 5180}, {40, 5200}, {44, 5220}, {48, 5240}, {52, 5260},
39 {56, 5280}, {60, 5300}, {64, 5320}, {149, 5745}, {153, 5765},
40 {157, 5785}, {161, 5805}, {165, 5825}, {167, 5835}, {169, 5845},
41 {171, 5855}, {173, 5865},
42 /* HiperLAN2 */
43 {100, 5500}, {104, 5520}, {108, 5540}, {112, 5560}, {116, 5580},
44 {120, 5600}, {124, 5620}, {128, 5640}, {132, 5660}, {136, 5680},
45 {140, 5700},
46 /* Japan MMAC */
47 {34, 5170}, {38, 5190}, {42, 5210}, {46, 5230},
48 /* Japan */
49 {184, 4920}, {188, 4940}, {192, 4960}, {196, 4980},
50 {208, 5040},/* Japan, means J08 */
51 {212, 5060},/* Japan, means J12 */
52 {216, 5080},/* Japan, means J16 */
53 };
54
55 static int ch_freq_map_num = ARRAY_SIZE(ch_freq_map);
56
rtw_ch2freq(u32 channel)57 u32 rtw_ch2freq(u32 channel)
58 {
59 u8 i;
60 u32 freq = 0;
61
62 for (i = 0; i < ch_freq_map_num; i++) {
63 if (channel == ch_freq_map[i].channel) {
64 freq = ch_freq_map[i].frequency;
65 break;
66 }
67 }
68 if (i == ch_freq_map_num)
69 freq = 2412;
70
71 return freq;
72 }
73
rtw_freq2ch(u32 freq)74 u32 rtw_freq2ch(u32 freq)
75 {
76 u8 i;
77 u32 ch = 0;
78
79 for (i = 0; i < ch_freq_map_num; i++) {
80 if (freq == ch_freq_map[i].frequency) {
81 ch = ch_freq_map[i].channel;
82 break;
83 }
84 }
85 if (i == ch_freq_map_num)
86 ch = 1;
87
88 return ch;
89 }
90