root/drivers/staging/rtl8188eu/core/rtw_rf.c

DEFINITIONS

1. rtw_ch2freq

   1 // SPDX-License-Identifier: GPL-2.0
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   5  *
   6  ******************************************************************************/
   7 #define _RTW_RF_C_
   8 
   9 #include <osdep_service.h>
  10 #include <drv_types.h>
  11 #include <recv_osdep.h>
  12 #include <xmit_osdep.h>
  13 
  14 struct ch_freq {
  15         u32 channel;
  16         u32 frequency;
  17 };
  18 
  19 static struct ch_freq ch_freq_map[] = {
  20         {1, 2412}, {2, 2417}, {3, 2422}, {4, 2427}, {5, 2432},
  21         {6, 2437}, {7, 2442}, {8, 2447}, {9, 2452}, {10, 2457},
  22         {11, 2462}, {12, 2467}, {13, 2472}, {14, 2484},
  23         /*  UNII */
  24         {36, 5180}, {40, 5200}, {44, 5220}, {48, 5240}, {52, 5260},
  25         {56, 5280}, {60, 5300}, {64, 5320}, {149, 5745}, {153, 5765},
  26         {157, 5785}, {161, 5805}, {165, 5825}, {167, 5835}, {169, 5845},
  27         {171, 5855}, {173, 5865},
  28         /* HiperLAN2 */
  29         {100, 5500}, {104, 5520}, {108, 5540}, {112, 5560}, {116, 5580},
  30         {120, 5600}, {124, 5620}, {128, 5640}, {132, 5660}, {136, 5680},
  31         {140, 5700},
  32         /* Japan MMAC */
  33         {34, 5170}, {38, 5190}, {42, 5210}, {46, 5230},
  34         /*  Japan */
  35         {184, 4920}, {188, 4940}, {192, 4960}, {196, 4980},
  36         {208, 5040},/* Japan, means J08 */
  37         {212, 5060},/* Japan, means J12 */
  38         {216, 5080},/* Japan, means J16 */
  39 };
  40 
  41 static int ch_freq_map_num = ARRAY_SIZE(ch_freq_map);
  42 
  43 u32 rtw_ch2freq(u32 channel)
  44 {
  45         u8      i;
  46         u32     freq = 0;
  47 
  48         for (i = 0; i < ch_freq_map_num; i++) {
  49                 if (channel == ch_freq_map[i].channel) {
  50                         freq = ch_freq_map[i].frequency;
  51                                 break;
  52                 }
  53         }
  54         if (i == ch_freq_map_num)
  55                 freq = 2412;
  56 
  57         return freq;
  58 }