d0297.c

st7710的tuner标准驱动

#endif

#if defined (ST_OS21) || defined (ST_OSLINUX)
        semaphore_delete(Lock_InitTermOpenClose);
#else
        semaphore_delete(&Lock_InitTermOpenClose);
#endif
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print((">"));
#endif

    InstanceChainTop = (D0297_InstanceData_t *)0x7ffffffe;
    Installed        = FALSE;

#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("ok\n"));
#endif

    return(Error);
}



/* ------------------------------------------------------------------------- */
/* /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ API /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ */
/* ------------------------------------------------------------------------- */



/* ----------------------------------------------------------------------------
Name: demod_d0297_Init()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t demod_d0297_Init(ST_DeviceName_t *DeviceName, DEMOD_InitParams_t *InitParams)
{
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
    const char *identity = "STTUNER d0297.c demod_d0297_Init()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
    D0297_InstanceData_t *InstanceNew, *Instance;

    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        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(InitParams->MemoryPartition);
    if( Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail MemoryPartition not valid\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    Error = STTUNER_Util_CheckPtrNull(DeviceName);
    if( Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail DeviceName not valid\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    InstanceNew = memory_allocate_clear(InitParams->MemoryPartition, 1, sizeof( D0297_InstanceData_t ));
    if (InstanceNew == NULL)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail memory allocation InstanceNew\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_NO_MEMORY);
    }

    /* slot into chain */
    if (InstanceChainTop == NULL)
    {
        InstanceNew->InstanceChainPrev = NULL; /* no previous instance */
        InstanceChainTop = InstanceNew;
    }
    else    /* tag onto last data block in chain */
    {
        Instance = InstanceChainTop;

        while(Instance->InstanceChainNext != NULL)
        {
            Instance = Instance->InstanceChainNext;   /* next block */
        }
        Instance->InstanceChainNext     = (void *)InstanceNew;
        InstanceNew->InstanceChainPrev  = (void *)Instance;
    }

    InstanceNew->DeviceName          = DeviceName;
    InstanceNew->TopLevelHandle      = STTUNER_MAX_HANDLES;
    InstanceNew->IOHandle            = InitParams->IOHandle;
    InstanceNew->MemoryPartition     = InitParams->MemoryPartition;
    InstanceNew->DeviceMap.Timeout   = IOREG_DEFAULT_TIMEOUT;
    InstanceNew->DeviceMap.Registers = DEF0297_NBREG;
    InstanceNew->DeviceMap.Fields    = DEF0297_NBFIELD;
    InstanceNew->DeviceMap.Mode      = IOREG_MODE_SUBADR_8; /* NEW as of 3.4.0: i/o addressing mode to use */
    InstanceNew->DeviceMap.MemoryPartition = InitParams->MemoryPartition;
    InstanceNew->InstanceChainNext   = NULL; /* always last in the chain */

    InstanceNew->ExternalClock     = (InitParams->ExternalClock)/1000;          /* Unit KHz */
    InstanceNew->TSOutputMode      = InitParams->TSOutputMode;
    InstanceNew->SerialDataMode    = InitParams->SerialDataMode;
    InstanceNew->SerialClockSource = InitParams->SerialClockSource;
    InstanceNew->FECMode           = InitParams->FECMode;

    /* reserve memory for register mapping */
    Error = STTUNER_IOREG_Open(&InstanceNew->DeviceMap);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail setup new register database\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    /* install a mapping */
    Error = Reg0297_Install(&InstanceNew->DeviceMap);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail install mapping\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    /* set misc params for mapping */
    Error = Reg0297_Open(&InstanceNew->DeviceMap, InstanceNew->ExternalClock);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail setup register database params\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    /* set drv specific parameters */
    Drv0297_InitParams(&InstanceNew->DeviceMap, InstanceNew->IOHandle);

#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
    STTBX_Print(("%s allocated & initalized block named '%s' at 0x%08x (%d bytes)\n", identity, InstanceNew->DeviceName, (U32)InstanceNew, sizeof( D0297_InstanceData_t ) ));
#endif
    SEM_UNLOCK(Lock_InitTermOpenClose);
    return(Error);
}



/* ----------------------------------------------------------------------------
Name: demod_d0297_Term()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t demod_d0297_Term(ST_DeviceName_t *DeviceName, DEMOD_TermParams_t *TermParams)
{
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
   const char *identity = "STTUNER d0297.c demod_d0297_Term()";
#endif
    ST_ErrorCode_t Error = ST_NO_ERROR;
    D0297_InstanceData_t *Instance, *InstancePrev, *InstanceNext;

    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        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_CABDRV_D0297
        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_CABDRV_D0297
        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_CABDRV_D0297
    STTBX_Print(("%s looking for first free handle[\n", identity));
#endif

    Instance = InstanceChainTop;
    while(1)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("(%s)", Instance->DeviceName));
#endif
        if ( strcmp( (char *)Instance->DeviceName, (char *)DeviceName) == 0)
        {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
            STTBX_Print(("]\n"));
#endif
            Error = STTUNER_IOREG_Close(&Instance->DeviceMap);
            if (Error != ST_NO_ERROR)
            {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
                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_CABDRV_D0297
            STTBX_Print(("%s freed block at %0x%08x\n", identity, (U32)Instance ));
#endif

#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
            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_CABDRV_D0297
                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_CABDRV_D0297
    STTBX_Print(("%s FAIL! this point should NEVER be reached\n", identity));
#endif
    SEM_UNLOCK(Lock_InitTermOpenClose);
    return(Error);
}



/* ----------------------------------------------------------------------------
Name: demod_d0297_Open()

Description:

Parameters:

Return Value:
---------------------------------------------------------------------------- */
ST_ErrorCode_t demod_d0297_Open(ST_DeviceName_t *DeviceName, DEMOD_OpenParams_t  *OpenParams, DEMOD_Capability_t *Capability, DEMOD_Handle_t *Handle)
{
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
   const char *identity = "STTUNER d0297.c demod_d0297_Open()";
#endif
    ST_ErrorCode_t          Error = ST_NO_ERROR;
    U8                      Version;
    D0297_InstanceData_t    *Instance;
    STTUNER_InstanceDbase_t *Inst;


    if(Installed == FALSE)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        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_CABDRV_D0297
        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_CABDRV_D0297
    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_CABDRV_D0297
            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_CABDRV_D0297
        STTBX_Print(("(%s)", Instance->DeviceName));
#endif
    }
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print((" found ok\n"));
#endif

#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
    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_CABDRV_D0297
        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 */

    Inst = STTUNER_GetDrvInst();    /* pointer to instance database */

    /*
    --- wake up chip if in standby, Reset
    */
    /*  SOFT_RESET */
    Error = STTUNER_IOREG_SetRegister( &Instance->DeviceMap, Instance->IOHandle,  R0297_CTRL_0, 1);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail SOFT_RESET\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }
    Error = STTUNER_IOREG_SetRegister( &Instance->DeviceMap, Instance->IOHandle,  R0297_CTRL_0, 0);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail SOFT_RESET\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }
    /* RESET_DI */
    Error = STTUNER_IOREG_SetRegister( &Instance->DeviceMap, Instance->IOHandle,  R0297_CTRL_1, 1);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail RESET_DI\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }
    Error = STTUNER_IOREG_SetRegister( &Instance->DeviceMap, Instance->IOHandle,  R0297_CTRL_1, 0);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail RESET_DI\n", identity));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(Error);
    }

    /*
    --- Get chip ID
    */
    Version = Reg0297_GetSTV0297Id(&Instance->DeviceMap, Instance->IOHandle);
    if ( Version !=  STV0297_DEVICE_VERSION)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s fail device not found (0x%02x)\n", identity, Version));
#endif
        SEM_UNLOCK(Lock_InitTermOpenClose);
        return(ST_ERROR_UNKNOWN_DEVICE);
    }
    else
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297
        STTBX_Print(("%s device found, release/revision=%u\n", identity, Version));
#endif
    }

    /* reset all chip registers */
    Error = STTUNER_IOREG_Reset(&Instance->DeviceMap, Instance->IOHandle, DefVal, Address);
    if (Error != ST_NO_ERROR)
    {
#ifdef STTUNER_DEBUG_MODULE_CABDRV_D0297