l0299.c

st7710的tuner标准驱动

    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail allocate register database\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    /* install a register map */
    Error = L0299_Reg_Install(&InstanceNew->DeviceMap);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail install a register database\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
    STTBX_Print(("%s allocated & initalized block named '%s' at 0x%08x (%d bytes)\n", identity, InstanceNew->DeviceName, (U32)InstanceNew, sizeof( L0299_InstanceData_t ) ));
#endif
    SEM_UNLOCK(Lock_InitTermOpenClose);
#endif

#ifdef STTUNER_MINIDRIVER
    LNBInstance = memory_allocate_clear(InitParams->MemoryPartition, 1, sizeof( L0299_InstanceData_t ));
    LNBInstance->MemoryPartition = InitParams->MemoryPartition;
#endif
    return(Error);
}



/* ----------------------------------------------------------------------------
Name: lnb_l0299_Term()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t lnb_l0299_Term(ST_DeviceName_t *DeviceName,LNB_TermParams_t *TermParams)
{
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
   const char *identity = "STTUNER l0299.c lnb_l0299_Term()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
	#ifndef STTUNER_MINIDRIVER
    L0299_InstanceData_t *Instance, *InstancePrev, *InstanceNext;

    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail driver not installed\n", identity));
#endif
        return(STTUNER_ERROR_INITSTATE);
    }

    /* 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_SATDRV_L0299
        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_SATDRV_L0299
        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_SATDRV_L0299
    STTBX_Print(("%s looking for first free handle[\n", identity));
#endif

    Instance = InstanceChainTop;
    while(1)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("(%s)", Instance->DeviceName));
#endif
        if ( strcmp((char *)Instance->DeviceName, (char *)DeviceName) == 0)
        {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
            STTBX_Print(("]\n"));
#endif
            Error = STTUNER_IOREG_Close(&Instance->DeviceMap);
            if (Error != ST_NO_ERROR)
            {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
                STTBX_Print(("%s fail close register database\n", identity));
#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;
            }

            memory_deallocate(Instance->MemoryPartition, Instance);
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
            STTBX_Print(("%s freed block at %0x%08x\n", identity, (U32)Instance ));
#endif

#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
            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_SATDRV_L0299
                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_SATDRV_L0299
    STTBX_Print(("%s FAIL! this point should NEVER be reached\n", identity));
#endif
    SEM_UNLOCK(Lock_InitTermOpenClose);
    #endif
    
    #ifdef STTUNER_MINIDRIVER
    memory_deallocate(LNBInstance->MemoryPartition, LNBInstance);
    Error = ST_NO_ERROR;
    #endif
    return(Error);
}

/* ----------------------------------------------------------------------------
Name: lnb_l0299_Open()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t lnb_l0299_Open (ST_DeviceName_t *DeviceName, LNB_OpenParams_t *OpenParams, LNB_Capability_t *Capability, LNB_Handle_t *Handle)
{
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
   const char *identity = "STTUNER l0299.c lnb_l0299_Open()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
    #ifndef STTUNER_MINIDRIVER
    L0299_InstanceData_t     *Instance;
    STTUNER_demod_instance_t *DemodInstance;
    STTUNER_InstanceDbase_t  *Inst;
    
    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail driver not installed\n", identity));
#endif
        return(STTUNER_ERROR_INITSTATE);
    }

    Inst = STTUNER_GetDrvInst();

    /* 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_SATDRV_L0299
        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_SATDRV_L0299
    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_SATDRV_L0299
            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_SATDRV_L0299
        STTBX_Print(("(%s)", Instance->DeviceName));
#endif
    }
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
    STTBX_Print((" found ok\n"));
#endif

#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
    STTBX_Print(("%s using block at 0x%08x\n", identity, (U32)Instance));
#endif

    if(Instance->TopLevelHandle != STTUNER_MAX_HANDLES)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail driver instance already open\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_OPEN_HANDLE);
    }

    /* now got pointer to free (and valid) data block */

    /* this LNB driver is only for use with an STV0299 demod */
    Inst = STTUNER_GetDrvInst();    /* pointer to instance database */

    /* pointer to **OPENED** demod for this instance */
    DemodInstance = &Inst[OpenParams->TopLevelHandle].Sat.Demod;

    if(DemodInstance->Driver->ID != STTUNER_DEMOD_STV0299)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail STV0299 required\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(STTUNER_ERROR_ID);
    }
    else
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s STV0299 demod found\n", identity));
#endif
    }


    /* Set LNB capabilties */
    Capability->ShortCircuitDetect = TRUE;  /* lie (rewrite to get pwr status using stv0299 i/o pin etc.) */
    Capability->PowerAvailable     = TRUE;
    Capability->PolarizationSelect = STTUNER_PLR_ALL;
    
    /* Set latest configuration */
    #ifdef STTUNER_LNB_POWER_OFF_BY_DEFAULT
    Instance->Config.Status    = LNB_STATUS_OFF;
    Instance->Config.Polarization = STTUNER_LNB_OFF;
    #else
    Instance->Config.Status    = LNB_STATUS_ON;
    Instance->Config.Polarization = STTUNER_PLR_HORIZONTAL; /*set default pol->Horizontal*/
    #endif
    Instance->Config.ToneState = STTUNER_LNB_TONE_OFF;
    
    if((Inst[OpenParams->TopLevelHandle].Sat.Tuner.Driver->ID)==STTUNER_TUNER_DSF8910)
    {
      Instance->Config.LNBPowerControl  = STTUNER_LNB_POWER_DemodDACPin;
      Instance->Config.ToneSourceControl  = STTUNER_22KHz_TONE_DemodDiseqcPin;
      L0299_SetTone_Demod(&Instance->DeviceMap, Instance->IOHandle, 0);  /*LNB Tone OFF*/
      L0299_Set_DACPower(&Instance->DeviceMap, Instance->IOHandle, Instance->Config.Status);/*set LNB power 18V*/
    }
    else
    {
	    Instance->Config.ToneSourceControl  = STTUNER_22KHz_TONE_DemodOP0Pin;
	    Instance->Config.LNBPowerControl    = STTUNER_LNB_POWER_LNBPDefault;
	    L0299_SetLnb(&Instance->DeviceMap, Instance->IOHandle, 0);/* LNB tone off */
	    L0299_SetPower(&Instance->DeviceMap, Instance->IOHandle, Instance->Config.Status);/*LNB power on*/
    }
	                                     
    

    /* wait 500uS (0.5mS) then get power status */
            L0299_Delay_uS(500);
	    Error = L0299_GetPower(&Instance->DeviceMap, Instance->IOHandle, &Instance->Config.Status);
    
    /* Check to ensure there is no problem with the LNB circuit */

    if (Error == ST_NO_ERROR)   /* last i/o (above) operation was good */
    {
        if (Instance->Config.Status == LNB_STATUS_SHORT_CIRCUIT)
        {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
            STTBX_Print(("%s fail SAT_LNB_SHORT_CIRCUIT\n", identity));
#endif
            SEM_UNLOCK(Lock_InitTermOpenClose);
            return(STTUNER_ERROR_HWFAIL);
        }
    }
    else
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        STTBX_Print(("%s fail Error=%u\n", identity, Error));   /* L0299_GetPower failed */
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }


    Instance->TopLevelHandle = OpenParams->TopLevelHandle;  /* mark as valid */
    *Handle = (U32)Instance;

#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
    STTBX_Print(("%s opened ok\n", identity));
#endif
    SEM_UNLOCK(Lock_InitTermOpenClose);
    #endif
    
    #ifdef STTUNER_MINIDRIVER
     /* Set latest configuration */
    LNBInstance->Config.Status    = LNB_STATUS_ON;
    LNBInstance->Config.ToneState = STTUNER_LNB_TONE_OFF;
    LNBInstance->Config.Polarization = STTUNER_PLR_HORIZONTAL;/* set default pol->Horizontal*/
    
    LNBInstance->Config.ToneSourceControl  = STTUNER_22KHz_TONE_DemodOP0Pin;
    LNBInstance->Config.LNBPowerControl    = STTUNER_LNB_POWER_LNBPDefault;
    L0299_SetLnb(0);/* LNB tone off */
    L0299_SetPower(LNBInstance->Config.Status);/*LNB power on*/
    L0299_SetPolarization(STTUNER_PLR_HORIZONTAL);
    *Handle = (U32)LNBInstance;
    #endif
    return(Error);
}



/* ----------------------------------------------------------------------------
Name: lnb_l0299_Close()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t lnb_l0299_Close(LNB_Handle_t Handle, LNB_CloseParams_t *CloseParams)
{
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
   const char *identity = "STTUNER l0299.c lnb_l0299_Close()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
    #ifndef STTUNER_MINIDRIVER
    L0299_InstanceData_t     *Instance;

    Instance = (L0299_InstanceData_t *)Handle;

    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_SATDRV_L0299
        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_SATDRV_L0299
        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_SATDRV_L0299
        STTBX_Print(("%s fail driver instance not open\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_OPEN_HANDLE);
    }

    Instance->TopLevelHandle = STTUNER_MAX_HANDLES;