mrmBufRx Class Reference

#include <drvemRxBuf.h>

Inheritance diagram for mrmBufRx:

Collaboration diagram for mrmBufRx:

Public Member Functions
	mrmBufRx (const std::string &, volatile void *base, unsigned int qdepth, unsigned int bsize=0)
virtual	~mrmBufRx ()
virtual void	lock () const OVERRIDE FINAL
virtual void	unlock () const OVERRIDE FINAL
virtual bool	dataRxEnabled () const OVERRIDE FINAL
virtual void	dataRxEnable (bool) OVERRIDE FINAL
Public Member Functions inherited from bufRxManager
	bufRxManager (const std::string &, unsigned int qdepth, unsigned int bsize=0)
virtual	~bufRxManager ()
unsigned int	bsize ()
epicsUInt8 *	getFree (unsigned int *)
void	receive (epicsUInt8 *, unsigned int)
virtual void	dataRxError (dataBufComplete, void *) OVERRIDE FINAL
	Notification if Rx queue overflows. More...
virtual void	dataRxAddReceive (dataBufComplete fptr, void *arg=0) OVERRIDE FINAL
	Register to receive data buffers. More...
virtual void	dataRxDeleteReceive (dataBufComplete fptr, void *arg=0) OVERRIDE FINAL
	Unregister. More...
Public Member Functions inherited from dataBufRx
	dataBufRx (const std::string &n)
virtual	~dataBufRx ()=0
Public Member Functions inherited from mrf::ObjectInst< dataBufRx >
virtual propertyBase *	getPropertyBase (const char *pname, const std::type_info &ptype)
virtual void	visitProperties (bool(*cb)(propertyBase *, void *), void *arg)
Public Member Functions inherited from mrf::Object
const std::string &	name () const
const Object *	parent () const
child_iterator	beginChild () const
child_iterator	endChild () const
template<typename P >
mrf::auto_ptr< property< P > >	getProperty (const char *pname)

Static Public Member Functions
static void	drainbuf (CALLBACK *)
Static Public Member Functions inherited from mrf::ObjectInst< dataBufRx >
static int	initObject ()
Static Public Member Functions inherited from mrf::Object
static Object *	getObject (const std::string &name)
static Object *	getCreateObject (const std::string &name, const std::string &klass, const create_args_t &args=create_args_t())
static void	addFactory (const std::string &klass, create_factory_t fn)
static void	visitObjects (bool(*)(Object *, void *), void *)

Protected Attributes
volatile unsigned char *const	base

Additional Inherited Members
Public Types inherited from mrf::Object
typedef m_obj_children_t::const_iterator	child_iterator
typedef std::map< std::string, std::string >	create_args_t
typedef Object *(*	create_factory_t) (const std::string &name, const std::string &klass, const create_args_t &args)
Protected Member Functions inherited from bufRxManager
void	haderror (epicsStatus e)
Protected Member Functions inherited from mrf::ObjectInst< dataBufRx >
	ObjectInst (const std::string &n)
	ObjectInst (const std::string &n, A &a)
virtual	~ObjectInst ()
Protected Member Functions inherited from mrf::Object
	Object (const std::string &n, const Object *par=0)
virtual	~Object ()=0

Detailed Description

Definition at line 18 of file drvemRxBuf.h.

Constructor & Destructor Documentation

mrmBufRx()

mrmBufRx::mrmBufRx	(	const std::string &	n,
		volatile void *	base,
		unsigned int	qdepth,
		unsigned int	bsize = 0
	)

Definition at line 31 of file drvemRxBuf.cpp.

    :bufRxManager(n, qdepth, bsize)
    ,base((volatile unsigned char *)b)
{
}

~mrmBufRx()

mrmBufRx::~mrmBufRx ( )

virtual

Definition at line 37 of file drvemRxBuf.cpp.

{
    BITSET(NAT,32,base, DataBufCtrl, DataBufCtrl_stop);
}

Member Function Documentation

dataRxEnable()

void mrmBufRx::dataRxEnable ( bool  v )

virtual

Implements dataBufRx.

Definition at line 49 of file drvemRxBuf.cpp.

{
    int key=epicsInterruptLock();
    if (v) {
        // start reception and switch to DBus+data
        BITSET(NAT,32,base, DataBufCtrl, DataBufCtrl_mode|DataBufCtrl_rx);
    } else {
        BITSET(NAT,32,base, DataBufCtrl, DataBufCtrl_stop); // stop reception
        BITCLR(NAT,32,base, DataBufCtrl, DataBufCtrl_mode); // switch to DBus only
    }
    epicsInterruptUnlock(key);
}

dataRxEnabled()

bool mrmBufRx::dataRxEnabled ( ) const

virtual

Implements dataBufRx.

Definition at line 43 of file drvemRxBuf.cpp.

{
    return (READ32(base, DataBufCtrl) & DataBufCtrl_mode) != 0;
}

drainbuf()

void mrmBufRx::drainbuf ( CALLBACK *  cb )

static

Definition at line 74 of file drvemRxBuf.cpp.

{
try {
    void *vptr;
    callbackGetUser(vptr,cb);
    mrmBufRx& self=*static_cast<mrmBufRx*>(vptr);

    epicsUInt32 sts=READ32(self.base, DataBufCtrl);

    // Configured to send?
    if (!(sts&DataBufCtrl_mode))
        return;

    // Still receiving?
    if (sts&DataBufCtrl_rx)
        return;

    if (sts&DataBufCtrl_sumerr) {
        self.haderror(2);

    } else {
        unsigned int bsize;
        epicsUInt8 *buf=self.getFree(&bsize);

        if (!buf) {
            self.haderror(1);
        } else {

            unsigned int rsize=sts&DataBufCtrl_len_mask;
            
            if (rsize>bsize) {
                errlogPrintf("Received data buffer with size %u >= %u\n", rsize, bsize);
                rsize=bsize;
            }
            
            if(evrMrmSeqRxDebug>=1)
            {
                errlogPrintf("buffer %s: size=%u %08x %08x %08x %08x\n",
                    self.name().c_str(), rsize,
                    (unsigned)BE_READ32(self.base, DataRx(0)),
                    (unsigned)BE_READ32(self.base, DataRx(4)),
                    (unsigned)BE_READ32(self.base, DataRx(8)),
                    (unsigned)BE_READ32(self.base, DataRx(12)));
            }

            /* keep buffer in big endian mode (as sent by EVG) */
            for(unsigned int i=0; i<rsize; i+=4) {
                *(epicsUInt32*)(buf+i) = BE_READ32(self.base, DataRx(i));
            }
            self.receive(buf, rsize);
        }
    }

    WRITE32(self.base, DataBufCtrl, sts|DataBufCtrl_rx);
} catch(std::exception& e) {
    epicsPrintf("exception in mrmBufRx::drainbuf callback: %s\n", e.what());
}
}

lock()

virtual void mrmBufRx::lock ( ) const

inlinevirtual

Implements mrf::Object.

Definition at line 25 of file drvemRxBuf.h.

{};

unlock()

virtual void mrmBufRx::unlock ( ) const

inlinevirtual

Implements mrf::Object.

Definition at line 26 of file drvemRxBuf.h.

{};

Member Data Documentation

base

volatile unsigned char* const mrmBufRx::base

protected

Definition at line 34 of file drvemRxBuf.h.

---

The documentation for this class was generated from the following files:

• drvemRxBuf.h
• drvemRxBuf.cpp