| Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
| Jeff Johnson | 32d95a3 | 2012-09-10 13:15:23 -0700 | [diff] [blame^] | 2 | * Copyright (c) 2012, The Linux Foundation. All rights reserved. |
| Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
| 20 | */ |
| 21 | |
| 22 | #if !defined( __SAP_CH_SELECT_H ) |
| 23 | #define __SAP_CH_SELECT_H |
| 24 | /*=========================================================================== |
| 25 | |
| 26 | s a p C h S e l e c t . h |
| 27 | |
| 28 | OVERVIEW: |
| 29 | |
| 30 | This software unit holds the implementation of the WLAN SAP modules |
| 31 | functions for channel selection. |
| 32 | |
| 33 | DEPENDENCIES: |
| 34 | |
| 35 | |
| 36 | Are listed for each API below. |
| 37 | |
| 38 | |
| 39 | Copyright (c) 2010 QUALCOMM Incorporated. |
| 40 | All Rights Reserved. |
| 41 | Qualcomm Confidential and Proprietary |
| 42 | ===========================================================================*/ |
| 43 | |
| 44 | /*=========================================================================== |
| 45 | |
| 46 | EDIT HISTORY FOR FILE |
| 47 | |
| 48 | |
| 49 | This section contains comments describing changes made to the module. |
| 50 | Notice that changes are listed in reverse chronological order. |
| 51 | |
| 52 | |
| 53 | |
| 54 | when who what, where, why |
| 55 | ---------- ----- -------------------------------------------------------- |
| 56 | 2010-03-15 SoftAP Created module |
| 57 | |
| 58 | ===========================================================================*/ |
| 59 | |
| 60 | |
| 61 | /*-------------------------------------------------------------------------- |
| 62 | Include Files |
| 63 | ------------------------------------------------------------------------*/ |
| 64 | #include "aniGlobal.h" |
| 65 | /*-------------------------------------------------------------------------- |
| 66 | defines and enum |
| 67 | --------------------------------------------------------------------------*/ |
| 68 | |
| 69 | #define SPECT_24GHZ_CH_COUNT (11) // USA regulatory domain |
| 70 | #define SAPDFS_NORMALISE_1000 (1000/9) // Case of spec20 with channel diff = 0 |
| 71 | /* Gen 5 values |
| 72 | #define SOFTAP_MIN_RSSI (-85) |
| 73 | #define SOFTAP_MAX_RSSI (-45) |
| 74 | */ |
| 75 | #define SOFTAP_MIN_RSSI (-100) |
| 76 | #define SOFTAP_MAX_RSSI (0) |
| 77 | #define SOFTAP_MIN_COUNT (0) |
| 78 | #define SOFTAP_MAX_COUNT (60) |
| 79 | #define SOFTAP_RSSI_WEIGHT (20) |
| 80 | #define SOFTAP_COUNT_WEIGHT (20) |
| 81 | |
| 82 | #define SAP_DEFAULT_CHANNEL (6) |
| 83 | #define SAP_DEFAULT_5GHZ_CHANNEL (40) |
| 84 | #define SAP_CHANNEL_NOT_SELECTED (0) |
| 85 | /** |
| 86 | * Structure holding information of each channel in the spectrum, |
| 87 | * it contains the channel number, the computed weight |
| 88 | */ |
| 89 | typedef struct { |
| 90 | v_U16_t chNum; // Channel Number |
| 91 | v_U16_t bssCount; // bss found in scanresult for this channel |
| 92 | v_S31_t rssiAgr; // Max value of rssi among all BSS(es) from scanresult for this channel |
| 93 | v_U32_t weight; // Weightage of this channel |
| 94 | v_BOOL_t valid; // Is this a valid center frequency for regulatory domain |
| 95 | } tSapSpectChInfo;//tDfsSpectChInfo; |
| 96 | |
| 97 | /** |
| 98 | * Structure holding all the information required to make a |
| 99 | * decision for the best operating channel based on dfs formula |
| 100 | */ |
| 101 | typedef struct { |
| 102 | tSapSpectChInfo *pSpectCh;//tDfsSpectChInfo *pSpectCh; // Ptr to the channels in the entire spectrum band |
| 103 | v_U8_t numSpectChans; // Total num of channels in the spectrum |
| 104 | } tSapChSelSpectInfo;//tDfsChSelParams; |
| 105 | |
| 106 | /** |
| 107 | * Structure for channel weight calculation parameters |
| 108 | */ |
| 109 | typedef struct sSapChSelParams { |
| 110 | void *pSpectInfoParams;//*pDfsParams; // Filled with tSapChSelSpectInfo |
| 111 | v_U16_t numChannels; |
| 112 | } tSapChSelParams; |
| 113 | |
| 114 | #endif // if !defined __SAP_CH_SELECT_H |
| 115 | |