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

   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 ******************************************************************************/
  15#define _RTW_RF_C_
  16
  17#include <drv_types.h>
  18#include <linux/kernel.h>
  19
  20
  21struct ch_freq {
  22        u32 channel;
  23        u32 frequency;
  24};
  25
  26static struct ch_freq ch_freq_map[] = {
  27        {1, 2412}, {2, 2417}, {3, 2422}, {4, 2427}, {5, 2432},
  28        {6, 2437}, {7, 2442}, {8, 2447}, {9, 2452}, {10, 2457},
  29        {11, 2462}, {12, 2467}, {13, 2472}, {14, 2484},
  30        /*  UNII */
  31        {36, 5180}, {40, 5200}, {44, 5220}, {48, 5240}, {52, 5260},
  32        {56, 5280}, {60, 5300}, {64, 5320}, {149, 5745}, {153, 5765},
  33        {157, 5785}, {161, 5805}, {165, 5825}, {167, 5835}, {169, 5845},
  34        {171, 5855}, {173, 5865},
  35        /* HiperLAN2 */
  36        {100, 5500}, {104, 5520}, {108, 5540}, {112, 5560}, {116, 5580},
  37        {120, 5600}, {124, 5620}, {128, 5640}, {132, 5660}, {136, 5680},
  38        {140, 5700},
  39        /* Japan MMAC */
  40        {34, 5170}, {38, 5190}, {42, 5210}, {46, 5230},
  41        /*  Japan */
  42        {184, 4920}, {188, 4940}, {192, 4960}, {196, 4980},
  43        {208, 5040},/* Japan, means J08 */
  44        {212, 5060},/* Japan, means J12 */
  45        {216, 5080},/* Japan, means J16 */
  46};
  47
  48u32 rtw_ch2freq(u32 channel)
  49{
  50        u8 i;
  51        u32 freq = 0;
  52
  53        for (i = 0; i < ARRAY_SIZE(ch_freq_map); i++) {
  54                if (channel == ch_freq_map[i].channel) {
  55                        freq = ch_freq_map[i].frequency;
  56                                break;
  57                }
  58        }
  59        if (i == ARRAY_SIZE(ch_freq_map))
  60                freq = 2412;
  61
  62        return freq;
  63}
  64