d0372.c

st7710的tuner标准驱动

    /* now safe to lock semaphore */
    SEM_LOCK(Lock_InitTermOpenClose);

    /* ---------- check params ---------- */
    Error = STTUNER_Util_CheckPtrNull(TermParams);
    if( Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail TermParams not valid\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    /* ---------- check that at least one init has taken place ---------- */
    if(InstanceChainTop == NULL)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail nothing initalized\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(STTUNER_ERROR_INITSTATE);
    }


    /* reap next matching DeviceName */
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s looking for first free handle[\n", identity));
#endif

    Instance = InstanceChainTop;
    while(1)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("(%s)", Instance->DeviceName));
#endif
        if ( strcmp( (char *)Instance->DeviceName, (char *)DeviceName) == 0)
        {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
            STTBX_Print(("<-- ]\n"));
#endif
            /* found so now xlink prev and next(if applicable) and deallocate memory */
            InstancePrev = Instance->InstanceChainPrev;
            InstanceNext = Instance->InstanceChainNext;

            /* if instance to delete is first in chain */
            if (Instance->InstanceChainPrev == NULL)
            {
                InstanceChainTop = InstanceNext;        /* which would be NULL if last block to be term'd */
                if (InstanceNext != NULL)
                {
                InstanceNext->InstanceChainPrev = NULL; /* now top of chain, no previous instance */
                }
            }
            else
            {   /* safe to set value for prev instaance (because there IS one) */
                InstancePrev->InstanceChainNext = InstanceNext;
            }

            /* if there is a next block in the chain */
            if (InstanceNext != NULL)
            {
                InstanceNext->InstanceChainPrev = InstancePrev;
            }

 /* Added for removing memory related problem in API test
                 memory for register mapping */
           Error = STTUNER_IOREG_Close(&Instance->DeviceMap);
           if (Error != ST_NO_ERROR)
            {
	   #ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
            STTBX_Print(("%s fail deallocate register database\n", identity));
	   #endif
           SEM_UNLOCK(Lock_InitTermOpenClose);
           return(Error);           
        }
           memory_deallocate(Instance->MemoryPartition, Instance);
           

#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
            STTBX_Print(("%s freed block at %0x%08x\n", identity, (U32)Instance ));
#endif

#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
            STTBX_Print(("%s terminated ok\n", identity));
#endif
            SEM_UNLOCK(Lock_InitTermOpenClose);
            return(Error);
        }
        else if(Instance->InstanceChainNext == NULL)
        {       /* error we should have found a matching name before the end of the list */
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
                STTBX_Print(("\n%s fail no free handle before end of list\n", identity));
#endif
                SEM_UNLOCK(Lock_InitTermOpenClose);
                return(STTUNER_ERROR_INITSTATE);
        }
        else
        {
            Instance = Instance->InstanceChainNext;   /* next block */
        }

    }


#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s FAIL! this point should NEVER be reached\n", identity));
#endif
    SEM_UNLOCK(Lock_InitTermOpenClose);
    return(Error);
}



/* ----------------------------------------------------------------------------
Name: demod_d0372_Open()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t demod_d0372_Open(ST_DeviceName_t *DeviceName, DEMOD_OpenParams_t  *OpenParams, DEMOD_Capability_t *Capability, DEMOD_Handle_t *Handle)
{
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
   const char *identity = "STTUNER d0372.c demod_d0372_Open()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
    D0372_InstanceData_t     *Instance;
    U8 ChipID = 0;


    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail driver not installed\n", identity));
#endif
        return(STTUNER_ERROR_INITSTATE);
    }

    /* now safe to lock semaphore */
    SEM_LOCK(Lock_InitTermOpenClose);

    /* ---------- check that at least one init has taken place ---------- */
    if(InstanceChainTop == NULL)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail nothing initalized\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(STTUNER_ERROR_INITSTATE);
    }

    /* find  handle from name */
    Instance = InstanceChainTop;
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s looking (%s)", identity, Instance->DeviceName));
#endif
    while(strcmp((char *)Instance->DeviceName, (char *)DeviceName) != 0)
    {
        /* error, should have found matching DeviceName before end of list */
        if(Instance->InstanceChainNext == NULL)
        {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
            STTBX_Print(("\n%s fail no block named '%s' before end of list\n", identity, DeviceName));
#endif
            SEM_UNLOCK(Lock_InitTermOpenClose);
            return(STTUNER_ERROR_INITSTATE);
        }
        Instance = Instance->InstanceChainNext;   /* next block */
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("(%s)", Instance->DeviceName));
#endif
    }
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print((" found ok\n"));
#endif

#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s using block at 0x%08x\n", identity, (U32)Instance));
#endif

    /* check handle IS actually free */
    if(Instance->TopLevelHandle != STTUNER_MAX_HANDLES)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail driver instance already open\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_OPEN_HANDLE);
    }
    /* else now got pointer to free (and valid) data block */

  
  
    ChipID = STTUNER_IOREG_GetRegister( &(Instance->DeviceMap), Instance->IOHandle, R0372_ID);
    if ( (ChipID & 0x10) !=  0x10)   
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail device not found (0x%02x)\n", identity, ChipID));
#endif
        /* Term LLA */
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s FE_372_Term()\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_UNKNOWN_DEVICE);
    }
    else
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s device found, release/revision=%u\n", identity, ChipID & 0x10));       
#endif
     }

 /* reset all chip registers */
    Error = STTUNER_IOREG_Reset(&(Instance->DeviceMap), Instance->IOHandle,STV0372_DefVal,STV0372_Address);
        				
    /* Set serial/parallel data mode */
    if (Instance->TSOutputMode == STTUNER_TS_MODE_SERIAL)
    {
        Error |= STTUNER_IOREG_SetField(&(Instance->DeviceMap), Instance->IOHandle, F0372_SERIES, 0x01);
        Error |= STTUNER_IOREG_SetField(&(Instance->DeviceMap), Instance->IOHandle, F0372_SWAP, 0x01);
    }
    else
    {
        Error |= STTUNER_IOREG_SetField(&(Instance->DeviceMap), Instance->IOHandle, F0372_SERIES, 0x00);
        Error |= STTUNER_IOREG_SetField(&(Instance->DeviceMap), Instance->IOHandle, F0372_SWAP, 0x00);
    }
    
    
    /*set data clock polarity inversion mode (rising/falling)*/
    switch(Instance->ClockPolarity)
    {
       case STTUNER_DATA_CLOCK_INVERTED:
    	 Error |= STTUNER_IOREG_SetField(&(Instance->DeviceMap), Instance->IOHandle, F0372_POLARITY, 0x01);
    	 break;
       case STTUNER_DATA_CLOCK_NONINVERTED:
    	 Error |= STTUNER_IOREG_SetField(&(Instance->DeviceMap), Instance->IOHandle, F0372_POLARITY, 0x00);
    	 break;
       case STTUNER_DATA_CLOCK_POLARITY_DEFAULT:            
    	default:
    	break;
    }
    
   
    /* Set capabilties */
    Capability->FECAvail        = STTUNER_FEC_ALL;  /* direct mapping to STTUNER_FECRate_t    */
    Capability->ModulationAvail = STTUNER_MOD_ALL;  /* direct mapping to STTUNER_Modulation_t */
    Capability->AGCControl      = FALSE;
    Capability->SymbolMin       =  1000000; /*   1 MegaSymbols/sec */
    Capability->SymbolMax       = 50000000; /*  50 MegaSymbols/sec */

    Capability->BerMax           = MAX_BER;
    Capability->SignalQualityMax = MAX_SIGNAL_QUALITY;
    Capability->AgcMax           = MAX_AGC;

#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s no EVALMAX tuner driver, F0360_IAGC=0\n", identity));
#endif


    /* finally (as nor more errors to check for, allocate handle */
    Instance->TopLevelHandle = OpenParams->TopLevelHandle;
    *Handle = (U32)Instance;

#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s opened ok\n", identity));
#endif

    SEM_UNLOCK(Lock_InitTermOpenClose); 
    return(Error);
}



/* ----------------------------------------------------------------------------
Name: demod_d0372_Close()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t demod_d0372_Close(DEMOD_Handle_t Handle, DEMOD_CloseParams_t *CloseParams)
{
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
   const char *identity = "STTUNER d0372.c demod_d0372_Close()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
    D0372_InstanceData_t     *Instance;

    /* private driver instance data */
    Instance = d0372_GetInstFromHandle(Handle);

    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail driver not installed\n", identity));
#endif
        return(STTUNER_ERROR_INITSTATE);
    }

    SEM_LOCK(Lock_InitTermOpenClose);

    /* ---------- check that at least one init has taken place ---------- */
    if(InstanceChainTop == NULL)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail nothing initalized\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(STTUNER_ERROR_INITSTATE);
    }

    if(Instance->TopLevelHandle == STTUNER_MAX_HANDLES)
    {
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
        STTBX_Print(("%s fail driver instance not open\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_OPEN_HANDLE);
    }
   
    
    /* indicate instance is closed */
    Instance->TopLevelHandle = STTUNER_MAX_HANDLES;

#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
    STTBX_Print(("%s closed\n", identity));
#endif

    SEM_UNLOCK(Lock_InitTermOpenClose);
    return(Error);
}


/* ----------------------------------------------------------------------------
Name: demod_d0372_GetTunerInfo()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t demod_d0372_GetTunerInfo(DEMOD_Handle_t Handle, STTUNER_TunerInfo_t *TunerInfo_p)
{
#ifdef STTUNER_DEBUG_MODULE_TERDRV_D0372
   const char *identity = "STTUNER d0372.c demod_d0372_GetTunerInfo()";
#endif
    ST_ErrorCode_t       Error = ST_NO_ERROR;
    D0372_InstanceData_t *Instance;
    STTUNER_Modulation_t CurModulation;
    STTUNER_FECRate_t    CurFECRates;
    STTUNER_Spectrum_t   CurSpectrum;
    U32                  CurFrequency,CurBitErrorRate;
    S32 CurSignalQuality;
     /* private driver instance data */    
    Instance = d0372_GetInstFromHandle(Handle);
    
    CurModulation = STTUNER_MOD_8VSB;
    
    CurFECRates = STTUNER_FEC_2_3;
   
    CurFrequency = TunerInfo_p->Frequency;
    
    /* Read noise estimations for C/N and BER */
    CurSignalQuality = FE_372_GetCarrierToNoiseRatio(&(Instance->DeviceMap), Instance->IOHandle);
    CurBitErrorRate=FE_372_GetBitErrorRate(&(Instance->DeviceMap), Instance->IOHandle);
    #ifndef ST_OSLINUX
    task_lock();
    #endif
    CurSignalQuality = (CurSignalQuality * 10)/36; /*signal qaulity in % calculated considering 36dB as 100% signal-quality,. x*100/36 *10 as value should be devided by 10 */
    /*If it reaches maximum value then force it to max value*/
    if ( CurSignalQuality > MAX_SIGNAL_QUALITY)
    {
      	CurSignalQuality = MAX_SIGNAL_QUALITY;
    }
    TunerInfo_p->FrequencyFound      = CurFrequency;
    TunerInfo_p->SignalQuality       = CurSignalQuality;
    TunerInfo_p->BitErrorRate        = CurBitErrorRate;
    TunerInfo_p->ScanInfo.Modulation = CurModulation;  
    TunerInfo_p->ScanInfo.FECRates   = CurFECRates;
    TunerInfo_p->ScanInfo.Spectrum   = CurSpectrum;
    /*Inst[Instance->TopLevelHandle].TunerInfoError = TunerError;)*/
    Error = Instance->DeviceMap.Error;
    #ifndef ST_OSLINUX
    task_unlock();
    #endif
    return(Error);
}