LXR linux/drivers/staging/rtl8723bs/core/rtw

   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
  12struct ch_freq {
  13        u32 channel;
  14        u32 frequency;
  15};
  16
  17static 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
  39u32 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