/*
* TWDriverScan.h
*
* Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Texas Instruments nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TWDRIVERSCAN_H
#define TWDRIVERSCAN_H
/** \file TWDriverScan.h
* \brief TWDriver Scan APIs
*
* \see
*/
#include "tidef.h"
#include "TWDriverRate.h"
#include "public_commands.h"
/*****************************************************************************************
Scan Definitions
---------------
This file is included by the TWDriver.h , it should not be included apart. !!!!!!!
*****************************************************************************************/
/*
***********************************************************************
* Constant definitions.
***********************************************************************
*/
#define MAX_NUMBER_OF_CHANNELS_PER_SCAN 16
#define SCAN_MAX_NUM_OF_NORMAL_CHANNELS_PER_COMMAND MAX_NUMBER_OF_CHANNELS_PER_SCAN
#define SCAN_MAX_NUM_OF_SPS_CHANNELS_PER_COMMAND 16
#define SCAN_DEFAULT_MIN_CHANNEL_DWELL_TIME 30000
#define SCAN_DEFAULT_MAX_CHANNEL_DWELL_TIME 60000
#define SCAN_DEFAULT_EARLY_TERMINATION_EVENT SCAN_ET_COND_DISABLE
#define SCAN_DEFAULT_EARLY_TERMINATION_NUM_OF_FRAMES 0
#define PERIODIC_SCAN_MAX_SSID_NUM 8
#define PERIODIC_SCAN_MAX_INTERVAL_NUM 16
#define PERIODIC_SCAN_MAX_CHANNEL_NUM 37 /* G-14 + A-23 */
#define MAX_SSID_LEN 32
/*
***********************************************************************
* Enums.
***********************************************************************
*/
/** \enum EScanType
* \brief Scan Type
*
* \par Description
* This Enumeration defines the available scan types.
*
* \sa TFileInfo
*/
typedef enum
{
/* 0 */ SCAN_TYPE_NORMAL_PASSIVE = 0, /**< Normal passive scan */
/* 1 */ SCAN_TYPE_NORMAL_ACTIVE, /**< Normal active scan */
/* 2 */ SCAN_TYPE_SPS, /**< Scheduled Passive scan */
/* 3 */ SCAN_TYPE_TRIGGERED_PASSIVE, /**< Triggered Passive scan */
/* 4 */ SCAN_TYPE_TRIGGERED_ACTIVE, /**< Triggered Active scan */
/* 5 */ SCAN_TYPE_NO_SCAN, /**< No Scan to perform */
/* 6 */ SCAN_TYPE_PACTSIVE /**< Passive + Active Scan (used for DFS - driver internal use only!!!) */
} EScanType;
/** \enum EScanEtCondition
* \brief Scan Early Termonation Condition
*
* \par Description
* This Enumeration defines the different early termination causes.
*
* \sa TFileInfo
*/
typedef enum
{
SCAN_ET_COND_DISABLE = 0x00, /**< No early termination is not disabled (Do not perform an early termination scan)*/
SCAN_ET_COND_BEACON = 0x10, /**< Early termination scan on beacon reception */
SCAN_ET_COND_PROBE_RESP = 0x20, /**< Early termination scan on probe response reception */
SCAN_ET_COND_ANY_FRAME = 0x30, /**< Early termination scan on both beacon or probe response reception */
SCAN_ET_COND_NUM_OF_CONDS= 0x4 /**< Number of early termination conditions */
} EScanEtCondition;
/** \enum EScanResultTag
* \brief Scan Debug Tags
*
* \par Description
* Enumeration of the differnet Scan Result Tags possible
*
* \sa
*/
typedef enum
{
/* 0 */ SCAN_RESULT_TAG_CURENT_BSS = 0, /**< */
/* 1 */ SCAN_RESULT_TAG_APPLICATION_ONE_SHOT, /**< */
/* 2 */ SCAN_RESULT_TAG_DRIVER_PERIODIC, /**< */
/* 3 */ SCAN_RESULT_TAG_APPLICATION_PEIODIC, /**< */
/* 4 */ SCAN_RESULT_TAG_MEASUREMENT, /**< */
/* 5 */ SCAN_RESULT_TAG_IMMEDIATE, /**< */
/* 6 */ SCAN_RESULT_TAG_CONTINUOUS, /**< */
/* 7 */ SCAN_RESULT_TAG_MAX_NUMBER /**< */
} EScanResultTag;
/** \enum ESsidVisability
* \brief SSID Visablility Type
*
* \par Description
*
* \sa
*/
typedef enum
{
/* 0 */ SCAN_SSID_VISABILITY_PUBLIC = 0, /**< Visible */
/* 1 */ SCAN_SSID_VISABILITY_HIDDEN /**< Hidden */
} ESsidVisability;
/***********************************************************************
* Structure definitions.
***********************************************************************
*/
/** \struct TSsid
* \brief SSID Parameters
*
* \par Description
*
* \sa
*/
typedef struct
{
TI_UINT8 len; /**< SSID Length */
char str[ MAX_SSID_LEN ]; /**< SSID string buffer */
} TSsid;
/** \struct TScanNormalChannelEntry
* \brief Scan Normal Channel Entry
*
* \par Description
* This structure defines single channel parameters for normal scan operation other than SPS (inc. triggered)
*
* \sa
*/
typedef struct
{
TMacAddr bssId; /**< BSSID (MAC address) to filter */
TI_UINT32 maxChannelDwellTime; /**< Maximum time to stay on the channel if some frames were
* received but the early termination limit has not been reached (microseconds)
*/
TI_UINT32 minChannelDwellTime; /**< Minimum time to stay on the channel if no frames were received (microseconds) */
EScanEtCondition earlyTerminationEvent; /**< Early termination frame type */
TI_UINT8 ETMaxNumOfAPframes; /**< Number of frames from the early termination frame types according to the early
* Termination Event setting, after which scan is stopped on this channel
*/
TI_UINT8 txPowerDbm; /**< Power level used to transmit (for active scan only) (0: no change; 1-5: predefined power level */
TI_UINT8 channel; /**< Channel to scan */
} TScanNormalChannelEntry;
/** \struct TScanSpsChannelEntry
* \brief Scan SPS Channel Entry
*
* \par Description
* This structure defines single channel parameters for an SPS scan operation
*
* \sa
*/
typedef struct
{
TMacAddr bssId; /**< BSSID (source is MAC address) to filter */
TI_UINT32 scanDuration; /**< Length of time to start scanning the channel (TSF lower 4 bytes) */
TI_UINT32 scanStartTime; /**< Exact time to start scanning the channel (TSF lower 4 bytes) */
EScanEtCondition earlyTerminationEvent; /**< Scan early termination frame type */
TI_UINT8 ETMaxNumOfAPframes; /**< Number of frames from the early termination frame types according to
* the early Termination Event setting, after which scan is stopped on this channel
*/
TI_UINT8 channel; /**< Channel to scan */
} TScanSpsChannelEntry;
/** \struct TScanChannelEntry
* \brief Scan Channel Entry
*
* \par Description
* Holds single channel parameters single-channel parameters for all scan types,
* either for normal scan or for SPS scan
*
* \sa
*/
typedef union
{
TScanNormalChannelEntry normalChannelEntry; /**< Normal scan parameters: channel parameters for all scan types other than SPS */
TScanSpsChannelEntry SPSChannelEntry; /**< SPS scan parameters: channel parameters for SPS type */
} TScanChannelEntry;
/** \struct TScanParams
* \brief scan operation parameters
*
* \par Description
* This structure defines parameters for a scan operation
*
* \sa
*/
typedef struct
{
TSsid desiredSsid; /**< The SSID to search (optional) */
EScanType scanType; /**< Desired scan type (normal - active or passive, SPS, triggered - active or passive) */
ERadioBand band; /**< Band to scan (A / BG) */
TI_UINT8 probeReqNumber; /**< Number of probe requests to send on each channel (for active scan) */
ERateMask probeRequestRate; /**< The rate at which to send the probe requests */
TI_UINT8 Tid; /**< Time at which to trigger the scan (for triggered scan) */
TI_UINT64 latestTSFValue; /**< For SPS scan: the latest TSF at which a frame was received. Used to detect
* TSF error (AP recovery).
*/
TI_UINT32 SPSScanDuration; /**< For SPS scan ONLY: the time duration of the scan (in milliseconds), used to
* Set timer according to. Used to set scan-complete timer
*/
TI_UINT8 numOfChannels; /**< Number of channels to scan */
TScanChannelEntry channelEntry[ MAX_NUMBER_OF_CHANNELS_PER_SCAN ]; /**< Channel data array, actual size according to the above field. */
} TScanParams;
/** \struct TPeriodicScanSsid
* \brief Periodic Scan SSID
*
* \par Description
* This structure defines parameters for Periodic scan for SSID
*
* \sa
*/
typedef struct
{
ESsidVisability eVisability; /**< Indicates if SSID Visible or not */
TSsid tSsid; /**< The Parameters of Scaned SSID */
} TPeriodicScanSsid;
/** \struct TPeriodicChannelEntry
* \brief Periodic Channel Entry
*
* \par Description
* This structure defines a Channel Entry of Periodic scan
* (each scanned channel has its own Channel Entry)
*
* \sa
*/
typedef struct
{
ERadioBand eBand; /**< Channel's Radio Band */
TI_UINT32 uChannel; /**< Channel's Number */
EScanType eScanType; /**< The Type of Scan Performed on the channel */
TI_UINT32 uMinDwellTimeMs; /**< minimum time to dwell on the channel, in microseconds */
TI_UINT32 uMaxDwellTimeMs; /**< maximum time to dwell on the channel, in microseconds */
TI_UINT32 uTxPowerLevelDbm; /**< Channel's Power Level In Dbm/10 units */
} TPeriodicChannelEntry;
/** \struct TPeriodicScanParams
* \brief Periodic Scan Parameters
*
* \par Description
* This structure defines all the parameters of Periodic scan
*
* \sa
*/
typedef struct
{
TI_UINT32 uSsidNum; /**< Number of Desired SSID scanned */
TI_UINT8 uSsidListFilterEnabled; /** 1: eneable filtering according to the list; 0: disable */
TPeriodicScanSsid tDesiredSsid[ PERIODIC_SCAN_MAX_SSID_NUM ]; /**< Buffer of size of maximum possible Periodic Scanned SSIDs.
* This buffer holds the Parameters of Desired SSIDs (for each SSID:
* visibility, length, string buffer) --> number of init entries in
* buffer: uSsidNum
*/
TI_UINT32 uCycleNum; /**< number of Scan cycles to run */
TI_UINT32 uCycleIntervalMsec[ PERIODIC_SCAN_MAX_INTERVAL_NUM ]; /**< Intervals (in Msec) between two sequential scan cycle */
TI_INT8 iRssiThreshold; /**< RSSI threshold */
TI_INT8 iSnrThreshold; /**< SNR threshold */
TI_UINT32 uFrameCountReportThreshold; /**< Report after N results are received */
TI_BOOL bTerminateOnReport; /**< Indicates if to Terminate after report */
ScanBssType_e eBssType; /**< Scan BSS Type */
TI_UINT32 uProbeRequestNum; /**< Number of probe requests to transmit per SSID */
TI_UINT32 uChannelNum; /**< Number of Scaned Channels */
TPeriodicChannelEntry tChannels[ PERIODIC_SCAN_MAX_CHANNEL_NUM ]; /**< Buffer of size of maximum possible Periodic Scanned Channels.
* This buffer holds the Parameters of each Scanned Channel
*/
} TPeriodicScanParams;
#endif /* TWDRIVERSCAN_H */