1 // SPDX-License-Identifier: GPL-2.0 2 /****************************************************************************** 3 * 4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. 5 * 6 ******************************************************************************/ 7 8 #include <drv_types.h> 9 #include <linux/kernel.h> 10 11 12 struct ch_freq { 13 u32 channel; 14 u32 frequency; 15 }; 16 17 static struct ch_freq ch_freq_map[] = { 18 {1, 2412}, {2, 2417}, {3, 2422}, {4, 2427}, {5, 2432}, 19 {6, 2437}, {7, 2442}, {8, 2447}, {9, 2452}, {10, 2457}, 20 {11, 2462}, {12, 2467}, {13, 2472}, {14, 2484}, 21 /* UNII */ 22 {36, 5180}, {40, 5200}, {44, 5220}, {48, 5240}, {52, 5260}, 23 {56, 5280}, {60, 5300}, {64, 5320}, {149, 5745}, {153, 5765}, 24 {157, 5785}, {161, 5805}, {165, 5825}, {167, 5835}, {169, 5845}, 25 {171, 5855}, {173, 5865}, 26 /* HiperLAN2 */ 27 {100, 5500}, {104, 5520}, {108, 5540}, {112, 5560}, {116, 5580}, 28 {120, 5600}, {124, 5620}, {128, 5640}, {132, 5660}, {136, 5680}, 29 {140, 5700}, 30 /* Japan MMAC */ 31 {34, 5170}, {38, 5190}, {42, 5210}, {46, 5230}, 32 /* Japan */ 33 {184, 4920}, {188, 4940}, {192, 4960}, {196, 4980}, 34 {208, 5040},/* Japan, means J08 */ 35 {212, 5060},/* Japan, means J12 */ 36 {216, 5080},/* Japan, means J16 */ 37 }; 38 39 u32 rtw_ch2freq(u32 channel) 40 { 41 u8 i; 42 u32 freq = 0; 43 44 for (i = 0; i < ARRAY_SIZE(ch_freq_map); i++) { 45 if (channel == ch_freq_map[i].channel) { 46 freq = ch_freq_map[i].frequency; 47 break; 48 } 49 } 50 if (i == ARRAY_SIZE(ch_freq_map)) 51 freq = 2412; 52 53 return freq; 54 } 55