1/*
2 * ScanSrv.h
3 *
4 * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 *  * Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *  * Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in
15 *    the documentation and/or other materials provided with the
16 *    distribution.
17 *  * Neither the name Texas Instruments nor the names of its
18 *    contributors may be used to endorse or promote products derived
19 *    from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/** \file ScanSrv.h
35 *  \brief This file include private definitions for the scan SRV module.
36 *
37 *  \see   ScanSrv.c, ScanSrvSM.c, ScanSrvSM.h
38 */
39
40
41#ifndef __SCANSRV_H__
42#define __SCANSRV_H__
43
44#include "TWDriverInternal.h"
45#include "MacServices_api.h"
46#include "fsm.h"
47#include "ScanSrvSM.h"
48
49/*
50 ***********************************************************************
51 *  Constant definitions.
52 ***********************************************************************
53 */
54/* guard time for scan (added to calculated scan duration) */
55#define SCAN_SRV_FW_GUARD_TIME_MS                       62000
56/* module name for driver mode requests */
57#define SCAN_SRV_NAME                                   "SSRV"
58
59
60/*
61 ***********************************************************************
62 *  Enums.
63 ***********************************************************************
64 */
65
66
67/*
68 ***********************************************************************
69 *  Typedefs.
70 ***********************************************************************
71 */
72
73/*
74 ***********************************************************************
75 *  Structure definitions.
76 ***********************************************************************
77 */
78
79/** \struct scanSRV_t
80 * \brief This structure contains the scan SRV object data
81 */
82typedef struct
83{
84    TI_HANDLE           hOS;                           /**< OS object handle */
85    TI_HANDLE           hReport;                       /**< report object handle */
86    TI_HANDLE           hPowerSrv;                     /**< power Server object handle */
87    TI_HANDLE           hTWD;                          /**< TWD layer handle */
88    TI_HANDLE           hTimer;                        /**< Timer module object handle */
89    TI_HANDLE           hEventMbox;                    /**< EventMbox module object handle */
90    TI_HANDLE           hCmdBld;                       /**< Command builder object handle */
91    TScanSrvCompleteCb  scanCompleteNotificationFunc;  /**<
92                                                         * upper layer (scan concentrator) scan complete
93                                                         * callback function
94                                                         */
95    TI_HANDLE           scanCompleteNotificationObj;    /**<
96                                                         * upper layer (scan concentrator) scan complete
97                                                         * callback function
98                                                         */
99
100    TCmdResponseCb      commandResponseFunc;            /**<
101                                                         * upper layer command response CB. Passed down into the HAL
102                                                         * and called when the scan command has been received by the FW
103                                                         */
104    TI_HANDLE           commandResponseObj;             /**<
105                                                         * object parameter passed to the commandResposeFunc by the HAL
106                                                         * when it is called
107                                                         */
108    TFailureEventCb     failureEventFunc;               /**<
109                                                         * upper layer Failure Event CB.
110                                                         * called when the scan command has been Timer Expiry
111                                                         */
112    TI_HANDLE           failureEventObj;                /**<
113                                                         * object parameter passed to the failureEventFunc
114                                                         * when it is called
115                                                         */
116    TI_UINT16           SPSScanResult;                  /**<
117                                                         * bitmap indicating which channels were scanned
118                                                         * in an SPS scan
119                                                         */
120    TI_BOOL             bTSFError;                      /** indicates whether a TSF error occured */                                                        /**<
121                                                         * scan result: indicates a TSF error event and
122                                                         * which channels were scanned in SPS
123                                                         */
124    TI_BOOL             bDtimOverlapping;               /**< Indicates whether the scan is overlapping DTIM */
125    TI_BOOL             bExitFromDriverMode;            /**<
126                                                         * Indicates whether to exit driver mode once scan
127                                                         * is finished
128                                                         */
129    TI_BOOL             bSendNullData;                  /**<
130                                                         * Indicates whether to send Null data when exiting driver
131                                                         * mode once scan is finished
132                                                         */
133    TI_BOOL             bScanOnDriverModeFailure;       /**<
134                                                         * Indicates whether to scan if driver mode entry
135                                                         * wasn't successful
136                                                         */
137    TI_BOOL             bHighPriority;                  /**<
138                                                         * Indicates whether to request high priority
139                                                         * (overlapping DTIM) scan
140                                                         */
141    TI_BOOL             bSPSScan;                       /**<
142                                                         * whether the running scan type is SPS (TI_TRUE)
143                                                         * or something else (TI_FALSE). Used to stop a
144                                                         * running scan.
145                                                         */
146    TScanParams*        scanParams;                     /**< scan parameters */
147    EScanResultTag      eScanTag;                       /**< scan result tag */
148    TI_UINT32           uResultCount;                   /**< number of scan results (received from the FW) */
149    TI_HANDLE           hScanSrvTimer;                  /**< scan operation timer */
150    TI_BOOL             bTimerRunning;                  /**< whether the above timer is running */
151    TI_BOOL             bInRequest;                     /**<
152                                                         * Indicates whether the SM is run within
153                                                         * the scan request context (if so, to avoid
154                                                         * re-entrance, the complete function shouldn't
155                                                         * be called on failure, but rather an invalid
156                                                         * status should be returned)
157                                                         */
158    TI_STATUS           returnStatus;                   /**<
159                                                         * Holds the return code to the upper layer
160                                                         * Used to save errors during SM operation.
161                                                         */
162    /* state machine */
163    fsm_stateMachine_t* SM;                             /**<
164                                                         * state machines for different
165                                                         * scan types
166                                                         */
167    scan_SRVSMStates_e  SMState;                        /**<
168                                                         * state machine current states
169                                                         * for different scan types
170                                                         */
171    E80211PsMode        psRequest;                      /**<
172                                                         * Indicates if PS was requested or not
173                                                         * for current scan
174                                                         */
175    TI_UINT32           numberOfNoScanCompleteToRecovery;
176                                                        /**<
177                                                         * The number of consecutive no scan complete
178                                                         * that will trigger a recovery notification
179                                                         */
180    TI_UINT32           currentNumberOfConsecutiveNoScanCompleteEvents;
181                                                        /**<
182                                                         * The number of consecutivre no scan complete
183                                                         * events at present
184                                                         */
185    TI_BOOL             bNoScanCompleteFlag;            /**<
186                                                         * Indicates if the last event was start scan
187                                                         * (true) or no scan complete (false) to be able
188                                                         * to nullify correctly the above counter */
189    TI_UINT32           uTriggeredScanTimeOut;          /**<
190                                                         * Time out for starting triggered scan between
191                                                         * 2 channels */
192    TI_UINT8                uDtimPeriod;
193    TI_UINT16               uBeaconInterval;
194} scanSRV_t;
195
196/*
197 ***********************************************************************
198 *  External data definitions.
199 ***********************************************************************
200 */
201
202/*
203 ***********************************************************************
204 *  External functions definitions
205 ***********************************************************************
206 */
207
208/**
209 * \\n
210 * \date 16-Oct-2004\n
211 * \brief Creates the scan SRV object
212 *
213 * Function Scope \e Public.\n
214 * \param hOS - handle to the OS object.\n
215 * \return a handle to the scan SRV object, NULL if an error occurred.\n
216 */
217TI_HANDLE MacServices_scanSRV_create( TI_HANDLE hOS );
218
219/**
220 * \\n
221 * \date 29-Dec-2004\n
222 * \brief Finalizes the scan SRV module (releasing memory and timer)
223 *
224 * Function Scope \e Public.\n
225 * \param hScanSRV - handle to the scan SRV object.\n
226 */
227void MacServices_scanSRV_destroy( TI_HANDLE hScanSRV );
228
229/**
230 * \\n
231 * \date 29-Dec-2004\n
232 * \brief Initializes the scan SRV module, registers SCAN_COMPLETE to HAL.
233 *
234 * Function Scope \e Public.\n
235 * \param hScanSRV - handle to the scan SRV object.\n
236 * \param Handles of other modules.\n
237  */
238TI_STATUS MacServices_scanSRV_init (TI_HANDLE hMacServices,
239                                    TI_HANDLE hReport,
240                                    TI_HANDLE hTWD,
241                                    TI_HANDLE hTimer,
242                                    TI_HANDLE hEventMbox,
243                                    TI_HANDLE hCmdBld);
244
245/**
246 * \\n
247 * \date 26-July-2006\n
248 * \brief Configures the scan SRV module with initialization values
249 *
250 * Function Scope \e Public.\n
251 * \param hScanSRV - handle to the scan SRV object.\n
252 * \param hReport - handle to the report object.\n
253 * \param hHalCtrl - handle to the HAL ctrl object.\n
254  */
255void MacServices_scanSrv_config( TI_HANDLE hMacServices, TScanSrvInitParams* pInitParams );
256
257/**
258 * \\n
259 * \date 29-Dec-2004\n
260 * \brief Calculates the maximal time required for a scan operation
261 *
262 * Function Scope \e Public.\n
263 * \param hScanSRV - handle to the scan SRV object.\n
264 * \param scanParams - the scan parameters
265 * \param bConsiderDTIM - whether this scan overlaps DTIM
266 * \return the time (in milliseconds)
267 */
268TI_UINT32 MacServices_scanSRVcalculateScanTimeout( TI_HANDLE hScanSrv, TScanParams* scanParams, TI_BOOL bConsiderDTIM );
269
270/**
271 * \\n
272 * \date 16-Jan-2005\n
273 * \brief Convert time units (1024 usecs) to millisecs
274 *
275 * Function Scope \e Private.\n
276 * \param tu - the time in time units
277 * \return the time in milliseconds
278 */
279TI_UINT32 MacServices_scanSRVConvertTUToMsec( TI_UINT32 tu );
280
281/**
282 * \\n
283 * \date 27-Sep-2005\n
284 * \brief This function is the CB which is called as response to 'StartScan' or 'StopScan' \n.
285 *        here we check if there is a GWSI command response , and call it if necessary .\n
286 * Function Scope \e Private.\n
287 * \param hScanSrv - handle to the scan SRV object.\n
288 * \param MboxStatus - mailbox status. \n
289 */
290
291void MacServices_scanSRVCommandMailBoxCB(TI_HANDLE hScanSrv,TI_UINT16 MboxStatus);
292
293
294/**
295 * \brief Registers a failure event callback for scan error notifications.
296 *
297 * Function Scope \e Public.\n
298 * \param hMacServices - handle to the MacServices object.\n
299 * \param failureEventCB - the failure event callback function.\n
300 * \param hFailureEventObj - handle to the object passed to the failure event callback function.\n
301 */
302void scanSRV_registerFailureEventCB( TI_HANDLE hScanSRV,
303                                     void * failureEventCB, TI_HANDLE hFailureEventObj );
304
305void scanSRV_restart( TI_HANDLE hScanSRV);
306
307
308#endif /* __SCANSRV_H__ */
309