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1 /*
2  * Copyright (C) 2004-2010 NXP Software
3  * Copyright (C) 2010 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 /************************************************************************************/
19 /*                                                                                  */
20 /*  Includes                                                                        */
21 /*                                                                                  */
22 /************************************************************************************/
23 
24 #include "LVM_Private.h"
25 #include "LVM_Tables.h"
26 #include "VectorArithmetic.h"
27 #include "InstAlloc.h"
28 
29 /****************************************************************************************/
30 /*                                                                                      */
31 /* FUNCTION:                LVM_GetMemoryTable                                          */
32 /*                                                                                      */
33 /* DESCRIPTION:                                                                         */
34 /*  This function is used for memory allocation and free. It can be called in           */
35 /*  two ways:                                                                           */
36 /*                                                                                      */
37 /*      hInstance = NULL                Returns the memory requirements                 */
38 /*      hInstance = Instance handle     Returns the memory requirements and             */
39 /*                                      allocated base addresses for the instance       */
40 /*                                                                                      */
41 /*  When this function is called for memory allocation (hInstance=NULL) the memory      */
42 /*  base address pointers are NULL on return.                                           */
43 /*                                                                                      */
44 /*  When the function is called for free (hInstance = Instance Handle) the memory       */
45 /*  table returns the allocated memory and base addresses used during initialisation.   */
46 /*                                                                                      */
47 /* PARAMETERS:                                                                          */
48 /*  hInstance               Instance Handle                                             */
49 /*  pMemoryTable            Pointer to an empty memory definition table                 */
50 /*  pCapabilities           Pointer to the default capabilities                         */
51 /*                                                                                      */
52 /* RETURNS:                                                                             */
53 /*  LVM_SUCCESS             Succeeded                                                   */
54 /*  LVM_NULLADDRESS         When one of pMemoryTable or pInstParams is NULL             */
55 /*  LVM_OUTOFRANGE          When any of the Instance parameters are out of range        */
56 /*                                                                                      */
57 /* NOTES:                                                                               */
58 /*  1.  This function may be interrupted by the LVM_Process function                    */
59 /*  2.  The scratch memory is the largest required by any of the sub-modules plus any   */
60 /*      additional scratch requirements of the bundle                                   */
61 /*                                                                                      */
62 /****************************************************************************************/
63 
LVM_GetMemoryTable(LVM_Handle_t hInstance,LVM_MemTab_t * pMemoryTable,LVM_InstParams_t * pInstParams)64 LVM_ReturnStatus_en LVM_GetMemoryTable(LVM_Handle_t         hInstance,
65                                        LVM_MemTab_t         *pMemoryTable,
66                                        LVM_InstParams_t     *pInstParams)
67 {
68 
69     LVM_Instance_t      *pInstance = (LVM_Instance_t *)hInstance;
70     LVM_UINT32          AlgScratchSize;
71     LVM_UINT32          BundleScratchSize;
72     LVM_UINT16          InternalBlockSize;
73     INST_ALLOC          AllocMem[LVM_NR_MEMORY_REGIONS];
74     LVM_INT16           i;
75 
76 
77     /*
78      * Check parameters
79      */
80     if(pMemoryTable == LVM_NULL)
81     {
82         return LVM_NULLADDRESS;
83     }
84 
85 
86     /*
87      * Return memory table if the instance has already been created
88      */
89     if (hInstance != LVM_NULL)
90     {
91        /* Read back memory allocation table */
92         *pMemoryTable = pInstance->MemoryTable;
93         return(LVM_SUCCESS);
94     }
95 
96     if(pInstParams == LVM_NULL)
97     {
98         return LVM_NULLADDRESS;
99     }
100 
101     /*
102      *  Power Spectrum Analyser
103      */
104     if(pInstParams->PSA_Included > LVM_PSA_ON)
105     {
106         return (LVM_OUTOFRANGE);
107     }
108 
109     /*
110      * Check the instance parameters
111      */
112     if( (pInstParams->BufferMode != LVM_MANAGED_BUFFERS) && (pInstParams->BufferMode != LVM_UNMANAGED_BUFFERS) )
113     {
114         return (LVM_OUTOFRANGE);
115     }
116 
117     /* N-Band Equalizer */
118     if( pInstParams->EQNB_NumBands > 32 )
119     {
120         return (LVM_OUTOFRANGE);
121     }
122 
123     if(pInstParams->BufferMode == LVM_MANAGED_BUFFERS)
124     {
125         if( (pInstParams->MaxBlockSize < LVM_MIN_MAXBLOCKSIZE ) || (pInstParams->MaxBlockSize > LVM_MANAGED_MAX_MAXBLOCKSIZE ) )
126         {
127             return (LVM_OUTOFRANGE);
128         }
129     }
130     else
131     {
132         if( (pInstParams->MaxBlockSize < LVM_MIN_MAXBLOCKSIZE ) || (pInstParams->MaxBlockSize > LVM_UNMANAGED_MAX_MAXBLOCKSIZE) )
133         {
134             return (LVM_OUTOFRANGE);
135         }
136     }
137 
138     /*
139     * Initialise the AllocMem structures
140     */
141     for (i=0; i<LVM_NR_MEMORY_REGIONS; i++)
142     {
143         InstAlloc_Init(&AllocMem[i], LVM_NULL);
144     }
145     InternalBlockSize = (LVM_UINT16)((pInstParams->MaxBlockSize) & MIN_INTERNAL_BLOCKMASK); /* Force to a multiple of MIN_INTERNAL_BLOCKSIZE */
146 
147     if (InternalBlockSize < MIN_INTERNAL_BLOCKSIZE)
148     {
149         InternalBlockSize = MIN_INTERNAL_BLOCKSIZE;
150     }
151 
152     /* Maximum Internal Black Size should not be more than MAX_INTERNAL_BLOCKSIZE*/
153     if(InternalBlockSize > MAX_INTERNAL_BLOCKSIZE)
154     {
155         InternalBlockSize = MAX_INTERNAL_BLOCKSIZE;
156     }
157 
158     /*
159     * Bundle requirements
160     */
161     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA],
162         sizeof(LVM_Instance_t));
163 
164 
165     /*
166      * Set the algorithm and bundle scratch requirements
167      */
168     AlgScratchSize    = 0;
169     if (pInstParams->BufferMode == LVM_MANAGED_BUFFERS)
170     {
171         BundleScratchSize = 6 * (MIN_INTERNAL_BLOCKSIZE + InternalBlockSize) * sizeof(LVM_INT16);
172         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],        /* Scratch buffer */
173                             BundleScratchSize);
174         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA],
175                             sizeof(LVM_Buffer_t));
176     }
177 
178     /*
179      * Treble Enhancement requirements
180      */
181     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
182                         sizeof(LVM_TE_Data_t));
183     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
184                         sizeof(LVM_TE_Coefs_t));
185 
186     /*
187      * N-Band Equalizer requirements
188      */
189     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],      /* Local storage */
190                         (pInstParams->EQNB_NumBands * sizeof(LVM_EQNB_BandDef_t)));
191     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],      /* User storage */
192                         (pInstParams->EQNB_NumBands * sizeof(LVM_EQNB_BandDef_t)));
193 
194     /*
195      * Concert Sound requirements
196      */
197     {
198         LVCS_MemTab_t           CS_MemTab;
199         LVCS_Capabilities_t     CS_Capabilities;
200 
201         /*
202          * Set the capabilities
203          */
204         CS_Capabilities.MaxBlockSize     = InternalBlockSize;
205 
206         /*
207          * Get the memory requirements
208          */
209         LVCS_Memory(LVM_NULL,
210                     &CS_MemTab,
211                     &CS_Capabilities);
212 
213         /*
214          * Update the memory allocation structures
215          */
216         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
217                             CS_MemTab.Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Size);
218         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
219                             CS_MemTab.Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Size);
220         if (CS_MemTab.Region[LVM_MEMREGION_TEMPORARY_FAST].Size > AlgScratchSize) AlgScratchSize = CS_MemTab.Region[LVM_MEMREGION_TEMPORARY_FAST].Size;
221 
222     }
223 
224 
225     /*
226      * Dynamic Bass Enhancement requirements
227      */
228     {
229         LVDBE_MemTab_t          DBE_MemTab;
230         LVDBE_Capabilities_t    DBE_Capabilities;
231 
232         /*
233          * Set the capabilities
234          */
235         DBE_Capabilities.SampleRate      = LVDBE_CAP_FS_8000 | LVDBE_CAP_FS_11025 | LVDBE_CAP_FS_12000 | LVDBE_CAP_FS_16000 | LVDBE_CAP_FS_22050 | LVDBE_CAP_FS_24000 | LVDBE_CAP_FS_32000 | LVDBE_CAP_FS_44100 | LVDBE_CAP_FS_48000;
236         DBE_Capabilities.CentreFrequency = LVDBE_CAP_CENTRE_55Hz | LVDBE_CAP_CENTRE_55Hz | LVDBE_CAP_CENTRE_66Hz | LVDBE_CAP_CENTRE_78Hz | LVDBE_CAP_CENTRE_90Hz;
237         DBE_Capabilities.MaxBlockSize    = InternalBlockSize;
238 
239         /*
240          * Get the memory requirements
241          */
242         LVDBE_Memory(LVM_NULL,
243                     &DBE_MemTab,
244 
245                     &DBE_Capabilities);
246         /*
247          * Update the bundle table
248          */
249         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
250                             DBE_MemTab.Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Size);
251         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
252                             DBE_MemTab.Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Size);
253         if (DBE_MemTab.Region[LVM_MEMREGION_TEMPORARY_FAST].Size > AlgScratchSize) AlgScratchSize = DBE_MemTab.Region[LVM_MEMREGION_TEMPORARY_FAST].Size;
254 
255     }
256 
257 
258     /*
259      * N-Band equaliser requirements
260      */
261     {
262         LVEQNB_MemTab_t         EQNB_MemTab;            /* For N-Band Equaliser */
263         LVEQNB_Capabilities_t   EQNB_Capabilities;
264 
265         /*
266          * Set the capabilities
267          */
268         EQNB_Capabilities.SampleRate   = LVEQNB_CAP_FS_8000 | LVEQNB_CAP_FS_11025 | LVEQNB_CAP_FS_12000 | LVEQNB_CAP_FS_16000 | LVEQNB_CAP_FS_22050 | LVEQNB_CAP_FS_24000 | LVEQNB_CAP_FS_32000 | LVEQNB_CAP_FS_44100 | LVEQNB_CAP_FS_48000;
269         EQNB_Capabilities.SourceFormat = LVEQNB_CAP_STEREO | LVEQNB_CAP_MONOINSTEREO;
270         EQNB_Capabilities.MaxBlockSize = InternalBlockSize;
271         EQNB_Capabilities.MaxBands     = pInstParams->EQNB_NumBands;
272 
273         /*
274          * Get the memory requirements
275          */
276         LVEQNB_Memory(LVM_NULL,
277                       &EQNB_MemTab,
278                       &EQNB_Capabilities);
279 
280         /*
281          * Update the bundle table
282          */
283         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
284                             EQNB_MemTab.Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Size);
285         InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
286                             EQNB_MemTab.Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Size);
287         if (EQNB_MemTab.Region[LVM_MEMREGION_TEMPORARY_FAST].Size > AlgScratchSize) AlgScratchSize = EQNB_MemTab.Region[LVM_MEMREGION_TEMPORARY_FAST].Size;
288 
289     }
290 
291     /*
292      * Headroom management memory allocation
293      */
294     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
295                        (LVM_HEADROOM_MAX_NBANDS * sizeof(LVM_HeadroomBandDef_t)));
296     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
297                        (LVM_HEADROOM_MAX_NBANDS * sizeof(LVM_HeadroomBandDef_t)));
298 
299 
300     /*
301      * Spectrum Analyzer memory requirements
302      */
303     {
304         pLVPSA_Handle_t     hPSAInst = LVM_NULL;
305         LVPSA_MemTab_t      PSA_MemTab;
306         LVPSA_InitParams_t  PSA_InitParams;
307         LVPSA_FilterParam_t FiltersParams[9];
308         LVPSA_RETURN        PSA_Status;
309 
310         if(pInstParams->PSA_Included == LVM_PSA_ON)
311         {
312             PSA_InitParams.SpectralDataBufferDuration   = (LVM_UINT16) 500;
313             PSA_InitParams.MaxInputBlockSize            = (LVM_UINT16) 1000;
314             PSA_InitParams.nBands                       = (LVM_UINT16) 9;
315 
316             PSA_InitParams.pFiltersParams = &FiltersParams[0];
317             for(i = 0; i < PSA_InitParams.nBands; i++)
318             {
319                 FiltersParams[i].CenterFrequency    = (LVM_UINT16) 1000;
320                 FiltersParams[i].QFactor            = (LVM_UINT16) 25;
321                 FiltersParams[i].PostGain           = (LVM_INT16)  0;
322             }
323 
324             /*
325             * Get the memory requirements
326             */
327             PSA_Status = LVPSA_Memory (hPSAInst,
328                                         &PSA_MemTab,
329                                         &PSA_InitParams);
330 
331             if (PSA_Status != LVPSA_OK)
332             {
333                 return((LVM_ReturnStatus_en) LVM_ALGORITHMPSA);
334             }
335 
336             /*
337             * Update the bundle table
338             */
339             /* Slow Data */
340             InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA],
341                 PSA_MemTab.Region[LVM_PERSISTENT_SLOW_DATA].Size);
342 
343             /* Fast Data */
344             InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
345                 PSA_MemTab.Region[LVM_PERSISTENT_FAST_DATA].Size);
346 
347             /* Fast Coef */
348             InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
349                 PSA_MemTab.Region[LVM_PERSISTENT_FAST_COEF].Size);
350 
351             /* Fast Temporary */
352             InstAlloc_AddMember(&AllocMem[LVM_TEMPORARY_FAST],
353                                 MAX_INTERNAL_BLOCKSIZE * sizeof(LVM_INT16));
354 
355             if (PSA_MemTab.Region[LVM_TEMPORARY_FAST].Size > AlgScratchSize)
356             {
357                 AlgScratchSize = PSA_MemTab.Region[LVM_TEMPORARY_FAST].Size;
358             }
359         }
360     }
361 
362     /*
363      * Return the memory table
364      */
365     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_SLOW_DATA].Size         = InstAlloc_GetTotal(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA]);
366     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_SLOW_DATA].Type         = LVM_PERSISTENT_SLOW_DATA;
367     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_SLOW_DATA].pBaseAddress = LVM_NULL;
368 
369     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Size         = InstAlloc_GetTotal(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA]);
370     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Type         = LVM_PERSISTENT_FAST_DATA;
371     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].pBaseAddress = LVM_NULL;
372     if (pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Size < 4)
373     {
374         pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_DATA].Size = 0;
375     }
376 
377     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Size         = InstAlloc_GetTotal(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF]);
378     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Type         = LVM_PERSISTENT_FAST_COEF;
379     pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].pBaseAddress = LVM_NULL;
380     if (pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Size < 4)
381     {
382         pMemoryTable->Region[LVM_MEMREGION_PERSISTENT_FAST_COEF].Size = 0;
383     }
384 
385     InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],
386                         AlgScratchSize);
387     pMemoryTable->Region[LVM_MEMREGION_TEMPORARY_FAST].Size             = InstAlloc_GetTotal(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST]);
388     pMemoryTable->Region[LVM_MEMREGION_TEMPORARY_FAST].Type             = LVM_TEMPORARY_FAST;
389     pMemoryTable->Region[LVM_MEMREGION_TEMPORARY_FAST].pBaseAddress     = LVM_NULL;
390     if (pMemoryTable->Region[LVM_MEMREGION_TEMPORARY_FAST].Size < 4)
391     {
392         pMemoryTable->Region[LVM_MEMREGION_TEMPORARY_FAST].Size = 0;
393     }
394 
395     return(LVM_SUCCESS);
396 
397 }
398 
399 
400 /****************************************************************************************/
401 /*                                                                                      */
402 /* FUNCTION:                LVM_GetInstanceHandle                                       */
403 /*                                                                                      */
404 /* DESCRIPTION:                                                                         */
405 /*  This function is used to create a bundle instance. It returns the created instance  */
406 /*  handle through phInstance. All parameters are set to their default, inactive state. */
407 /*                                                                                      */
408 /* PARAMETERS:                                                                          */
409 /*  phInstance              pointer to the instance handle                              */
410 /*  pMemoryTable            Pointer to the memory definition table                      */
411 /*  pInstParams             Pointer to the initialisation capabilities                  */
412 /*                                                                                      */
413 /* RETURNS:                                                                             */
414 /*  LVM_SUCCESS             Initialisation succeeded                                    */
415 /*  LVM_OUTOFRANGE          When any of the Instance parameters are out of range        */
416 /*  LVM_NULLADDRESS         When one of phInstance, pMemoryTable or pInstParams are NULL*/
417 /*                                                                                      */
418 /* NOTES:                                                                               */
419 /*  1. This function must not be interrupted by the LVM_Process function                */
420 /*                                                                                      */
421 /****************************************************************************************/
422 
LVM_GetInstanceHandle(LVM_Handle_t * phInstance,LVM_MemTab_t * pMemoryTable,LVM_InstParams_t * pInstParams)423 LVM_ReturnStatus_en LVM_GetInstanceHandle(LVM_Handle_t           *phInstance,
424                                           LVM_MemTab_t           *pMemoryTable,
425                                           LVM_InstParams_t       *pInstParams)
426 {
427 
428     LVM_ReturnStatus_en     Status = LVM_SUCCESS;
429     LVM_Instance_t          *pInstance;
430     INST_ALLOC              AllocMem[LVM_NR_MEMORY_REGIONS];
431     LVM_INT16               i;
432     LVM_UINT16              InternalBlockSize;
433     LVM_INT32               BundleScratchSize;
434 
435 
436     /*
437      * Check valid points have been given
438      */
439     if ((phInstance == LVM_NULL) || (pMemoryTable == LVM_NULL) || (pInstParams == LVM_NULL))
440     {
441         return (LVM_NULLADDRESS);
442     }
443 
444     /*
445      * Check the memory table for NULL pointers
446      */
447     for (i=0; i<LVM_NR_MEMORY_REGIONS; i++)
448     {
449         if ((pMemoryTable->Region[i].Size != 0) &&
450             (pMemoryTable->Region[i].pBaseAddress==LVM_NULL))
451         {
452             return(LVM_NULLADDRESS);
453         }
454     }
455 
456     /*
457      * Check the instance parameters
458      */
459     if( (pInstParams->BufferMode != LVM_MANAGED_BUFFERS) && (pInstParams->BufferMode != LVM_UNMANAGED_BUFFERS) )
460     {
461         return (LVM_OUTOFRANGE);
462     }
463 
464     if( pInstParams->EQNB_NumBands > 32 )
465     {
466         return (LVM_OUTOFRANGE);
467     }
468 
469     if(pInstParams->BufferMode == LVM_MANAGED_BUFFERS)
470     {
471         if( (pInstParams->MaxBlockSize < LVM_MIN_MAXBLOCKSIZE ) || (pInstParams->MaxBlockSize > LVM_MANAGED_MAX_MAXBLOCKSIZE ) )
472         {
473             return (LVM_OUTOFRANGE);
474         }
475     }
476     else
477     {
478         if( (pInstParams->MaxBlockSize < LVM_MIN_MAXBLOCKSIZE ) || (pInstParams->MaxBlockSize > LVM_UNMANAGED_MAX_MAXBLOCKSIZE) )
479         {
480             return (LVM_OUTOFRANGE);
481         }
482     }
483 
484     if(pInstParams->PSA_Included > LVM_PSA_ON)
485     {
486         return (LVM_OUTOFRANGE);
487     }
488 
489     /*
490      * Initialise the AllocMem structures
491      */
492     for (i=0; i<LVM_NR_MEMORY_REGIONS; i++)
493     {
494         InstAlloc_Init(&AllocMem[i],
495                        pMemoryTable->Region[i].pBaseAddress);
496     }
497 
498 
499     /*
500      * Set the instance handle
501      */
502     *phInstance  = (LVM_Handle_t)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA],
503                                                      sizeof(LVM_Instance_t));
504     pInstance =(LVM_Instance_t  *)*phInstance;
505 
506 
507     /*
508      * Save the memory table, parameters and capabilities
509      */
510     pInstance->MemoryTable    = *pMemoryTable;
511     pInstance->InstParams     = *pInstParams;
512 
513 
514     /*
515      * Set the bundle scratch memory and initialse the buffer management
516      */
517     InternalBlockSize = (LVM_UINT16)((pInstParams->MaxBlockSize) & MIN_INTERNAL_BLOCKMASK); /* Force to a multiple of MIN_INTERNAL_BLOCKSIZE */
518     if (InternalBlockSize < MIN_INTERNAL_BLOCKSIZE)
519     {
520         InternalBlockSize = MIN_INTERNAL_BLOCKSIZE;
521     }
522 
523     /* Maximum Internal Black Size should not be more than MAX_INTERNAL_BLOCKSIZE*/
524     if(InternalBlockSize > MAX_INTERNAL_BLOCKSIZE)
525     {
526         InternalBlockSize = MAX_INTERNAL_BLOCKSIZE;
527     }
528     pInstance->InternalBlockSize = (LVM_INT16)InternalBlockSize;
529 
530 
531     /*
532      * Common settings for managed and unmanaged buffers
533      */
534     pInstance->SamplesToProcess = 0;                /* No samples left to process */
535     if (pInstParams->BufferMode == LVM_MANAGED_BUFFERS)
536     {
537         /*
538          * Managed buffers required
539          */
540         pInstance->pBufferManagement = InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA],
541                                                            sizeof(LVM_Buffer_t));
542         BundleScratchSize = (LVM_INT32)(6 * (MIN_INTERNAL_BLOCKSIZE + InternalBlockSize) * sizeof(LVM_INT16));
543         pInstance->pBufferManagement->pScratch = InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],   /* Scratch 1 buffer */
544                                                                      (LVM_UINT32)BundleScratchSize);
545 
546         LoadConst_16(0,                                                        /* Clear the input delay buffer */
547                      (LVM_INT16 *)&pInstance->pBufferManagement->InDelayBuffer,
548                      (LVM_INT16)(2 * MIN_INTERNAL_BLOCKSIZE));
549         pInstance->pBufferManagement->InDelaySamples = MIN_INTERNAL_BLOCKSIZE; /* Set the number of delay samples */
550         pInstance->pBufferManagement->OutDelaySamples = 0;                     /* No samples in the output buffer */
551         pInstance->pBufferManagement->BufferState = LVM_FIRSTCALL;             /* Set the state ready for the first call */
552     }
553 
554 
555     /*
556      * Set default parameters
557      */
558     pInstance->Params.OperatingMode    = LVM_MODE_OFF;
559     pInstance->Params.SampleRate       = LVM_FS_8000;
560     pInstance->Params.SourceFormat     = LVM_MONO;
561     pInstance->Params.SpeakerType      = LVM_HEADPHONES;
562     pInstance->Params.VC_EffectLevel   = 0;
563     pInstance->Params.VC_Balance       = 0;
564 
565     /*
566      * Set callback
567      */
568     pInstance->CallBack = LVM_AlgoCallBack;
569 
570 
571     /*
572      * DC removal filter
573      */
574     DC_2I_D16_TRC_WRA_01_Init(&pInstance->DC_RemovalInstance);
575 
576 
577     /*
578      * Treble Enhancement
579      */
580     pInstance->pTE_Taps  = (LVM_TE_Data_t *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
581                                                                 sizeof(LVM_TE_Data_t));
582 
583     pInstance->pTE_State = (LVM_TE_Coefs_t *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
584                                                                  sizeof(LVM_TE_Coefs_t));
585     pInstance->Params.TE_OperatingMode = LVM_TE_OFF;
586     pInstance->Params.TE_EffectLevel   = 0;
587     pInstance->TE_Active               = LVM_FALSE;
588 
589 
590     /*
591      * Set the volume control and initialise Current to Target
592      */
593     pInstance->VC_Volume.MixerStream[0].CallbackParam      = 0;
594     pInstance->VC_Volume.MixerStream[0].CallbackSet        = 0;
595     pInstance->VC_Volume.MixerStream[0].pCallbackHandle    = pInstance;
596     pInstance->VC_Volume.MixerStream[0].pCallBack          = LVM_VCCallBack;
597 
598     /* In managed buffering, start with low signal level as delay in buffer management causes a click*/
599     if (pInstParams->BufferMode == LVM_MANAGED_BUFFERS)
600     {
601         LVC_Mixer_Init(&pInstance->VC_Volume.MixerStream[0],0,0);
602     }
603     else
604     {
605         LVC_Mixer_Init(&pInstance->VC_Volume.MixerStream[0],LVM_MAXINT_16,LVM_MAXINT_16);
606     }
607 
608     LVC_Mixer_SetTimeConstant(&pInstance->VC_Volume.MixerStream[0],0,LVM_FS_8000,2);
609 
610     pInstance->VC_VolumedB                  = 0;
611     pInstance->VC_AVLFixedVolume            = 0;
612     pInstance->VC_Active                    = LVM_FALSE;
613 
614     pInstance->VC_BalanceMix.MixerStream[0].CallbackParam      = 0;
615     pInstance->VC_BalanceMix.MixerStream[0].CallbackSet        = 0;
616     pInstance->VC_BalanceMix.MixerStream[0].pCallbackHandle    = pInstance;
617     pInstance->VC_BalanceMix.MixerStream[0].pCallBack          = LVM_VCCallBack;
618     LVC_Mixer_Init(&pInstance->VC_BalanceMix.MixerStream[0],LVM_MAXINT_16,LVM_MAXINT_16);
619     LVC_Mixer_VarSlope_SetTimeConstant(&pInstance->VC_BalanceMix.MixerStream[0],LVM_VC_MIXER_TIME,LVM_FS_8000,2);
620 
621     pInstance->VC_BalanceMix.MixerStream[1].CallbackParam      = 0;
622     pInstance->VC_BalanceMix.MixerStream[1].CallbackSet        = 0;
623     pInstance->VC_BalanceMix.MixerStream[1].pCallbackHandle    = pInstance;
624     pInstance->VC_BalanceMix.MixerStream[1].pCallBack          = LVM_VCCallBack;
625     LVC_Mixer_Init(&pInstance->VC_BalanceMix.MixerStream[1],LVM_MAXINT_16,LVM_MAXINT_16);
626     LVC_Mixer_VarSlope_SetTimeConstant(&pInstance->VC_BalanceMix.MixerStream[1],LVM_VC_MIXER_TIME,LVM_FS_8000,2);
627     /*
628      * Set the default EQNB pre-gain and pointer to the band definitions
629      */
630     pInstance->pEQNB_BandDefs = InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
631                                                     (pInstParams->EQNB_NumBands * sizeof(LVM_EQNB_BandDef_t)));
632     pInstance->pEQNB_UserDefs = InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
633                                                    (pInstParams->EQNB_NumBands * sizeof(LVM_EQNB_BandDef_t)));
634 
635 
636     /*
637      * Initialise the Concert Sound module
638      */
639     {
640         LVCS_Handle_t           hCSInstance;                /* Instance handle */
641         LVCS_MemTab_t           CS_MemTab;                  /* Memory table */
642         LVCS_Capabilities_t     CS_Capabilities;            /* Initial capabilities */
643         LVCS_ReturnStatus_en    LVCS_Status;                /* Function call status */
644 
645         /*
646          * Set default parameters
647          */
648         pInstance->Params.VirtualizerReverbLevel    = 100;
649         pInstance->Params.VirtualizerType           = LVM_CONCERTSOUND;
650         pInstance->Params.VirtualizerOperatingMode  = LVM_MODE_OFF;
651         pInstance->CS_Active                        = LVM_FALSE;
652 
653         /*
654          * Set the initialisation capabilities
655          */
656         CS_Capabilities.MaxBlockSize    = (LVM_UINT16)InternalBlockSize;
657         CS_Capabilities.CallBack = pInstance->CallBack;
658         CS_Capabilities.pBundleInstance = (void*)pInstance;
659 
660 
661         /*
662          * Get the memory requirements and then set the address pointers, forcing alignment
663          */
664         LVCS_Status = LVCS_Memory(LVM_NULL,                /* Get the memory requirements */
665                                   &CS_MemTab,
666                                   &CS_Capabilities);
667         CS_MemTab.Region[LVCS_MEMREGION_PERSISTENT_SLOW_DATA].pBaseAddress = &pInstance->CS_Instance;
668         CS_MemTab.Region[LVCS_MEMREGION_PERSISTENT_FAST_DATA].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
669                                                                                                          CS_MemTab.Region[LVCS_MEMREGION_PERSISTENT_FAST_DATA].Size);
670         CS_MemTab.Region[LVCS_MEMREGION_PERSISTENT_FAST_COEF].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
671                                                                                                          CS_MemTab.Region[LVCS_MEMREGION_PERSISTENT_FAST_COEF].Size);
672         CS_MemTab.Region[LVCS_MEMREGION_TEMPORARY_FAST].pBaseAddress       = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],
673                                                                                                          0);
674 
675         /*
676          * Initialise the Concert Sound instance and save the instance handle
677          */
678         hCSInstance = LVM_NULL;                            /* Set to NULL to return handle */
679         LVCS_Status = LVCS_Init(&hCSInstance,              /* Initiailse */
680                                 &CS_MemTab,
681                                 &CS_Capabilities);
682         if (LVCS_Status != LVCS_SUCCESS) return((LVM_ReturnStatus_en)LVCS_Status);
683         pInstance->hCSInstance = hCSInstance;              /* Save the instance handle */
684 
685     }
686 
687     /*
688      * Initialise the Bass Enhancement module
689      */
690     {
691         LVDBE_Handle_t          hDBEInstance;               /* Instance handle */
692         LVDBE_MemTab_t          DBE_MemTab;                 /* Memory table */
693         LVDBE_Capabilities_t    DBE_Capabilities;           /* Initial capabilities */
694         LVDBE_ReturnStatus_en   LVDBE_Status;               /* Function call status */
695 
696 
697         /*
698          * Set the initialisation parameters
699          */
700         pInstance->Params.BE_OperatingMode = LVM_BE_OFF;
701         pInstance->Params.BE_CentreFreq    = LVM_BE_CENTRE_55Hz;
702         pInstance->Params.BE_EffectLevel   = 0;
703         pInstance->Params.BE_HPF           = LVM_BE_HPF_OFF;
704 
705         pInstance->DBE_Active              = LVM_FALSE;
706 
707 
708 
709         /*
710          * Set the initialisation capabilities
711          */
712         DBE_Capabilities.SampleRate      = LVDBE_CAP_FS_8000 | LVDBE_CAP_FS_11025 | LVDBE_CAP_FS_12000 | LVDBE_CAP_FS_16000 | LVDBE_CAP_FS_22050 | LVDBE_CAP_FS_24000 | LVDBE_CAP_FS_32000 | LVDBE_CAP_FS_44100 | LVDBE_CAP_FS_48000;
713         DBE_Capabilities.CentreFrequency = LVDBE_CAP_CENTRE_55Hz | LVDBE_CAP_CENTRE_55Hz | LVDBE_CAP_CENTRE_66Hz | LVDBE_CAP_CENTRE_78Hz | LVDBE_CAP_CENTRE_90Hz;
714         DBE_Capabilities.MaxBlockSize    = (LVM_UINT16)InternalBlockSize;
715 
716 
717         /*
718          * Get the memory requirements and then set the address pointers
719          */
720         LVDBE_Status = LVDBE_Memory(LVM_NULL,               /* Get the memory requirements */
721                                     &DBE_MemTab,
722                                     &DBE_Capabilities);
723         DBE_MemTab.Region[LVDBE_MEMREGION_INSTANCE].pBaseAddress        = &pInstance->DBE_Instance;
724         DBE_MemTab.Region[LVDBE_MEMREGION_PERSISTENT_DATA].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
725                                                                                                       DBE_MemTab.Region[LVDBE_MEMREGION_PERSISTENT_DATA].Size);
726         DBE_MemTab.Region[LVDBE_MEMREGION_PERSISTENT_COEF].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
727                                                                                                       DBE_MemTab.Region[LVDBE_MEMREGION_PERSISTENT_COEF].Size);
728         DBE_MemTab.Region[LVDBE_MEMREGION_SCRATCH].pBaseAddress         = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],
729                                                                                                       0);
730 
731 
732         /*
733          * Initialise the Dynamic Bass Enhancement instance and save the instance handle
734          */
735         hDBEInstance = LVM_NULL;                            /* Set to NULL to return handle */
736         LVDBE_Status = LVDBE_Init(&hDBEInstance,            /* Initiailse */
737                                   &DBE_MemTab,
738                                   &DBE_Capabilities);
739         if (LVDBE_Status != LVDBE_SUCCESS) return((LVM_ReturnStatus_en)LVDBE_Status);
740         pInstance->hDBEInstance = hDBEInstance;             /* Save the instance handle */
741     }
742 
743 
744     /*
745      * Initialise the N-Band Equaliser module
746      */
747     {
748         LVEQNB_Handle_t          hEQNBInstance;             /* Instance handle */
749         LVEQNB_MemTab_t          EQNB_MemTab;               /* Memory table */
750         LVEQNB_Capabilities_t    EQNB_Capabilities;         /* Initial capabilities */
751         LVEQNB_ReturnStatus_en   LVEQNB_Status;             /* Function call status */
752 
753 
754         /*
755          * Set the initialisation parameters
756          */
757         pInstance->Params.EQNB_OperatingMode   = LVM_EQNB_OFF;
758         pInstance->Params.EQNB_NBands          = 0;
759         pInstance->Params.pEQNB_BandDefinition = LVM_NULL;
760         pInstance->EQNB_Active                 = LVM_FALSE;
761 
762 
763         /*
764          * Set the initialisation capabilities
765          */
766         EQNB_Capabilities.SampleRate      = LVEQNB_CAP_FS_8000 | LVEQNB_CAP_FS_11025 | LVEQNB_CAP_FS_12000 | LVEQNB_CAP_FS_16000 | LVEQNB_CAP_FS_22050 | LVEQNB_CAP_FS_24000 | LVEQNB_CAP_FS_32000 | LVEQNB_CAP_FS_44100 | LVEQNB_CAP_FS_48000;
767         EQNB_Capabilities.MaxBlockSize    = (LVM_UINT16)InternalBlockSize;
768         EQNB_Capabilities.MaxBands        = pInstParams->EQNB_NumBands;
769         EQNB_Capabilities.SourceFormat    = LVEQNB_CAP_STEREO | LVEQNB_CAP_MONOINSTEREO;
770         EQNB_Capabilities.CallBack        = pInstance->CallBack;
771         EQNB_Capabilities.pBundleInstance  = (void*)pInstance;
772 
773 
774         /*
775          * Get the memory requirements and then set the address pointers, forcing alignment
776          */
777         LVEQNB_Status = LVEQNB_Memory(LVM_NULL,             /* Get the memory requirements */
778                                       &EQNB_MemTab,
779                                       &EQNB_Capabilities);
780         EQNB_MemTab.Region[LVEQNB_MEMREGION_INSTANCE].pBaseAddress        = &pInstance->EQNB_Instance;
781         EQNB_MemTab.Region[LVEQNB_MEMREGION_PERSISTENT_DATA].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
782                                                                                                         EQNB_MemTab.Region[LVEQNB_MEMREGION_PERSISTENT_DATA].Size);
783         EQNB_MemTab.Region[LVEQNB_MEMREGION_PERSISTENT_COEF].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
784                                                                                                         EQNB_MemTab.Region[LVEQNB_MEMREGION_PERSISTENT_COEF].Size);
785         EQNB_MemTab.Region[LVEQNB_MEMREGION_SCRATCH].pBaseAddress         = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],
786                                                                                                         0);
787 
788 
789         /*
790          * Initialise the Dynamic Bass Enhancement instance and save the instance handle
791          */
792         hEQNBInstance = LVM_NULL;                           /* Set to NULL to return handle */
793         LVEQNB_Status = LVEQNB_Init(&hEQNBInstance,         /* Initiailse */
794                                     &EQNB_MemTab,
795                                     &EQNB_Capabilities);
796         if (LVEQNB_Status != LVEQNB_SUCCESS) return((LVM_ReturnStatus_en)LVEQNB_Status);
797         pInstance->hEQNBInstance = hEQNBInstance;           /* Save the instance handle */
798     }
799 
800     /*
801      * Headroom management memory allocation
802      */
803     {
804         pInstance->pHeadroom_BandDefs = InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
805                                                         (LVM_HEADROOM_MAX_NBANDS * sizeof(LVM_HeadroomBandDef_t)));
806         pInstance->pHeadroom_UserDefs = InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
807                                                        (LVM_HEADROOM_MAX_NBANDS * sizeof(LVM_HeadroomBandDef_t)));
808 
809         /* Headroom management parameters initialisation */
810         pInstance->NewHeadroomParams.NHeadroomBands = 2;
811         pInstance->NewHeadroomParams.pHeadroomDefinition = pInstance->pHeadroom_BandDefs;
812         pInstance->NewHeadroomParams.pHeadroomDefinition[0].Limit_Low          = 20;
813         pInstance->NewHeadroomParams.pHeadroomDefinition[0].Limit_High         = 4999;
814         pInstance->NewHeadroomParams.pHeadroomDefinition[0].Headroom_Offset    = 3;
815         pInstance->NewHeadroomParams.pHeadroomDefinition[1].Limit_Low          = 5000;
816         pInstance->NewHeadroomParams.pHeadroomDefinition[1].Limit_High         = 24000;
817         pInstance->NewHeadroomParams.pHeadroomDefinition[1].Headroom_Offset    = 4;
818         pInstance->NewHeadroomParams.Headroom_OperatingMode = LVM_HEADROOM_ON;
819 
820         pInstance->Headroom =0;
821     }
822 
823 
824     /*
825      * Initialise the PSA module
826      */
827     {
828         pLVPSA_Handle_t     hPSAInstance = LVM_NULL;   /* Instance handle */
829         LVPSA_MemTab_t      PSA_MemTab;
830         LVPSA_RETURN        PSA_Status;                 /* Function call status */
831         LVPSA_FilterParam_t FiltersParams[9];
832 
833         if(pInstParams->PSA_Included==LVM_PSA_ON)
834         {
835             pInstance->PSA_InitParams.SpectralDataBufferDuration   = (LVM_UINT16) 500;
836             pInstance->PSA_InitParams.MaxInputBlockSize            = (LVM_UINT16) 2048;
837             pInstance->PSA_InitParams.nBands                       = (LVM_UINT16) 9;
838             pInstance->PSA_InitParams.pFiltersParams               = &FiltersParams[0];
839             for(i = 0; i < pInstance->PSA_InitParams.nBands; i++)
840             {
841                 FiltersParams[i].CenterFrequency    = (LVM_UINT16) 1000;
842                 FiltersParams[i].QFactor            = (LVM_UINT16) 100;
843                 FiltersParams[i].PostGain           = (LVM_INT16)  0;
844             }
845 
846             /*Get the memory requirements and then set the address pointers*/
847             PSA_Status = LVPSA_Memory (hPSAInstance,
848                                           &PSA_MemTab,
849                                           &pInstance->PSA_InitParams);
850 
851             if (PSA_Status != LVPSA_OK)
852             {
853                 return((LVM_ReturnStatus_en) LVM_ALGORITHMPSA);
854             }
855 
856             /* Slow Data */
857             PSA_MemTab.Region[LVM_PERSISTENT_SLOW_DATA].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_SLOW_DATA],
858                 PSA_MemTab.Region[LVM_PERSISTENT_SLOW_DATA].Size);
859 
860 
861             /* Fast Data */
862             PSA_MemTab.Region[LVM_PERSISTENT_FAST_DATA].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_DATA],
863                 PSA_MemTab.Region[LVM_PERSISTENT_FAST_DATA].Size);
864 
865 
866             /* Fast Coef */
867             PSA_MemTab.Region[LVM_PERSISTENT_FAST_COEF].pBaseAddress = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_PERSISTENT_FAST_COEF],
868                 PSA_MemTab.Region[LVM_PERSISTENT_FAST_COEF].Size);
869 
870             /* Fast Temporary */
871             pInstance->pPSAInput = InstAlloc_AddMember(&AllocMem[LVM_TEMPORARY_FAST],
872                                                                      (LVM_UINT32) MAX_INTERNAL_BLOCKSIZE * sizeof(LVM_INT16));
873 
874             PSA_MemTab.Region[LVM_TEMPORARY_FAST].pBaseAddress       = (void *)InstAlloc_AddMember(&AllocMem[LVM_MEMREGION_TEMPORARY_FAST],0);
875 
876 
877             /*Initialise PSA instance and save the instance handle*/
878             pInstance->PSA_ControlParams.Fs = LVM_FS_48000;
879             pInstance->PSA_ControlParams.LevelDetectionSpeed  = LVPSA_SPEED_MEDIUM;
880             PSA_Status = LVPSA_Init (&hPSAInstance,
881                                     &pInstance->PSA_InitParams,
882                                     &pInstance->PSA_ControlParams,
883                                     &PSA_MemTab);
884 
885             if (PSA_Status != LVPSA_OK)
886             {
887                 return((LVM_ReturnStatus_en) LVM_ALGORITHMPSA);
888             }
889 
890             pInstance->hPSAInstance = hPSAInstance;       /* Save the instance handle */
891             pInstance->PSA_GainOffset = 0;
892         }
893         else
894         {
895             pInstance->hPSAInstance = LVM_NULL;
896         }
897 
898         /*
899          * Set the initialisation parameters.
900          */
901         pInstance->Params.PSA_PeakDecayRate   = LVM_PSA_SPEED_MEDIUM;
902         pInstance->Params.PSA_Enable          = LVM_PSA_OFF;
903     }
904 
905     /*
906      * Copy the initial parameters to the new parameters for correct readback of
907      * the settings.
908      */
909     pInstance->NewParams = pInstance->Params;
910 
911 
912     /*
913      * Create configuration number
914      */
915     pInstance->ConfigurationNumber = 0x00000000;
916     pInstance->ConfigurationNumber += LVM_CS_MASK;
917     pInstance->ConfigurationNumber += LVM_EQNB_MASK;
918     pInstance->ConfigurationNumber += LVM_DBE_MASK;
919     pInstance->ConfigurationNumber += LVM_VC_MASK;
920     pInstance->ConfigurationNumber += LVM_PSA_MASK;
921 
922     if(((pInstance->ConfigurationNumber  & LVM_CS_MASK)!=0)  ||
923         ((pInstance->ConfigurationNumber & LVM_DBE_MASK)!=0) ||
924         ((pInstance->ConfigurationNumber & LVM_EQNB_MASK)!=0)||
925         ((pInstance->ConfigurationNumber & LVM_TE_MASK)!=0)  ||
926         ((pInstance->ConfigurationNumber & LVM_VC_MASK)!=0))
927     {
928         pInstance->BlickSizeMultiple    = 4;
929     }
930     else
931     {
932         pInstance->BlickSizeMultiple    = 1;
933     }
934 
935     return(Status);
936 }
937 
938 
939 /****************************************************************************************/
940 /*                                                                                      */
941 /* FUNCTION:                LVM_ClearAudioBuffers                                       */
942 /*                                                                                      */
943 /* DESCRIPTION:                                                                         */
944 /*  This function is used to clear the internal audio buffers of the bundle.            */
945 /*                                                                                      */
946 /* PARAMETERS:                                                                          */
947 /*  hInstance               Instance handle                                             */
948 /*                                                                                      */
949 /* RETURNS:                                                                             */
950 /*  LVM_SUCCESS             Initialisation succeeded                                    */
951 /*  LVM_NULLADDRESS         Instance or scratch memory has a NULL pointer               */
952 /*                                                                                      */
953 /* NOTES:                                                                               */
954 /*  1. This function must not be interrupted by the LVM_Process function                */
955 /*                                                                                      */
956 /****************************************************************************************/
957 
LVM_ClearAudioBuffers(LVM_Handle_t hInstance)958 LVM_ReturnStatus_en LVM_ClearAudioBuffers(LVM_Handle_t  hInstance)
959 {
960     LVM_MemTab_t            MemTab;                                     /* Memory table */
961     LVM_InstParams_t        InstParams;                                 /* Instance parameters */
962     LVM_ControlParams_t     Params;                                     /* Control Parameters */
963     LVM_Instance_t          *pInstance  = (LVM_Instance_t  *)hInstance; /* Pointer to Instance */
964     LVM_HeadroomParams_t    HeadroomParams;
965 
966 
967     if(hInstance == LVM_NULL){
968         return LVM_NULLADDRESS;
969     }
970 
971     /* Save the control parameters */ /* coverity[unchecked_value] */ /* Do not check return value internal function calls */
972     LVM_GetControlParameters(hInstance, &Params);
973 
974     /*Save the headroom parameters*/
975     LVM_GetHeadroomParams(hInstance, &HeadroomParams);
976 
977     /*  Retrieve allocated buffers in memtab */
978     LVM_GetMemoryTable(hInstance, &MemTab,  LVM_NULL);
979 
980     /*  Save the instance parameters */
981     InstParams = pInstance->InstParams;
982 
983     /*  Call  LVM_GetInstanceHandle to re-initialise the bundle */
984     LVM_GetInstanceHandle( &hInstance,
985                            &MemTab,
986                            &InstParams);
987 
988     /* Restore control parameters */ /* coverity[unchecked_value] */ /* Do not check return value internal function calls */
989     LVM_SetControlParameters(hInstance, &Params);
990 
991     /*Restore the headroom parameters*/
992     LVM_SetHeadroomParams(hInstance, &HeadroomParams);
993 
994     /* DC removal filter */
995     DC_2I_D16_TRC_WRA_01_Init(&pInstance->DC_RemovalInstance);
996 
997 
998     return LVM_SUCCESS;
999 }
1000 
1001 
1002 
1003