| /* |
| * Copyright (c) 2017 The Linux Foundation. All rights reserved. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /** |
| * DOC: This file contains definition for mandatory legacy API |
| */ |
| |
| #include "wlan_utility.h" |
| #include <wlan_cmn.h> |
| |
| uint32_t wlan_chan_to_freq(uint8_t chan) |
| { |
| /* ch 0 - ch 13 */ |
| if (chan < WLAN_24_GHZ_CHANNEL_14) |
| return WLAN_24_GHZ_BASE_FREQ + chan * WLAN_CHAN_SPACING_5MHZ; |
| else if (chan == WLAN_24_GHZ_CHANNEL_14) |
| return WLAN_CHAN_14_FREQ; |
| else if (chan < WLAN_24_GHZ_CHANNEL_27) |
| /* ch 15 - ch 26 */ |
| return WLAN_CHAN_15_FREQ + |
| (chan - WLAN_24_GHZ_CHANNEL_15) * WLAN_CHAN_SPACING_20MHZ; |
| else if (chan == WLAN_5_GHZ_CHANNEL_170) |
| return WLAN_CHAN_170_FREQ; |
| else |
| return WLAN_5_GHZ_BASE_FREQ + chan * WLAN_CHAN_SPACING_5MHZ; |
| } |
| |
| bool wlan_is_dsrc_channel(uint16_t center_freq) |
| { |
| if (center_freq >= 5852 && |
| center_freq <= 5920) |
| return true; |
| |
| return false; |
| } |