/* vxmIfLib.c - interface library to VxM  *//* Copyright 1984-1992 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01b,23aug92,jcf  removed VXM_IF_OPS typedef.01a,01aug92,del  created.*//*DESCRIPTION------------This is the interface library for VxE and VxM.*/#include "vxWorks.h"#include "private/vxmIfLibP.h"/* globals */VXM_IF_OPS		vxmIfOps;VXM_IF_ANCHOR *		pVxmIfAnchor;BOOL			vxmIfLibInstalled;VXM_IF_OPS *		pVxmIfOps = &vxmIfOps;/******************************************************************************** vxmIfInit - initialize the interface*/  STATUS vxmIfInit     (    VXM_IF_ANCHOR *	pAnchor    )    {    FUNCPTR	getFunc;    if (vxmIfLibInstalled)	return (OK);    pVxmIfAnchor = pAnchor;    if (pVxmIfAnchor->ifMagic != VXM_IF_MAGIC)	return (ERROR);    /* the the interface access function from the anchor */    getFunc = pVxmIfAnchor->ifGetFunc;    /* initialize the interface operations using the access function */    vxmIfOps.vxmTblGet	   = getFunc;    vxmIfOps.vxmIntVecSet  = (FUNCPTR) (*getFunc) (VXM_IF_INT_VEC_SET_FUNC);    vxmIfOps.vxmBufRead	   = (FUNCPTR) (*getFunc) (VXM_IF_BUF_RD_FUNC);    vxmIfOps.vxmBufWrite   = (FUNCPTR) (*getFunc) (VXM_IF_BUF_WRT_FUNC);    vxmIfOps.vxmWrtBufFlush =(FUNCPTR) (*getFunc) (VXM_IF_WRTBUF_FLUSH_FUNC);    vxmIfOps.vxmHostQuery  = (FUNCPTR) (*getFunc) (VXM_IF_QUERY_FUNC);    vxmIfOps.vxmClbkAdd    = (FUNCPTR) (*getFunc) (VXM_IF_CALLBACK_ADD_FUNC);    vxmIfOps.vxmClbkState  = (FUNCPTR) (*getFunc) (VXM_IF_CALLBACK_STATE_FUNC);    vxmIfOps.vxmClbkQuery  = (FUNCPTR) (*getFunc) (VXM_IF_CALLBACK_QUERY_FUNC);    vxmIfLibInstalled = TRUE;    return (OK);    }/******************************************************************************** vxmIfInstalled - check for the presence of the ROM monitor.*/  BOOL vxmIfInstalled (void)    {    return (vxmIfLibInstalled);    }/******************************************************************************** vxmIfVecSet - set an interrupt vector via the ROM monitor.*/  STATUS vxmIfVecSet     (    FUNCPTR * 	vector,    FUNCPTR	function    )    {    if (pVxmIfOps->vxmIntVecSet == NULL)	return (ERROR);    return ((* pVxmIfOps->vxmIntVecSet) (vector, function));     }/******************************************************************************** vxmIfVecGet - get an interrupt vector via the ROM monitor.*/  FUNCPTR vxmIfVecGet     (    FUNCPTR * 	vector    )    {    if (pVxmIfOps->vxmIntVecGet == NULL)	return (NULL);    return ((FUNCPTR)(* pVxmIfOps->vxmIntVecGet) (vector));     }/******************************************************************************** vxmIfHostQuery - query the host via VxM for input data.*/   BOOL vxmIfHostQuery ()    {    if (pVxmIfOps->vxmHostQuery == NULL)	return (FALSE);    return ((* pVxmIfOps->vxmHostQuery) ());    }/******************************************************************************** vxmIfWrtBufFlush - flush the ROM monitor write buffer.*/  void vxmIfWrtBufFlush ()    {    if (pVxmIfOps->vxmWrtBufFlush != NULL)	(* pVxmIfOps->vxmWrtBufFlush) ();    }/******************************************************************************** vxmIfBufRead - read a buffer of data from the ROM monitor.*/  int vxmIfBufRead    (    char *	pBuf,    int		nBytes    )    {    if (pVxmIfOps->vxmBufRead == NULL)	return (0);    return ((* pVxmIfOps->vxmBufRead) (pBuf, nBytes));    }/******************************************************************************** vxmIfBufWrite - write a buffer of data to the ROM monitor.*/  int vxmIfBufWrite    (    char *	pBuf,    int		nBytes    )    {    if (pVxmIfOps->vxmBufWrite == NULL)	return (0);    return ((* pVxmIfOps->vxmBufWrite) (pBuf, nBytes));    }/******************************************************************************** vxmIfCallbackAdd - add a callback to the interface.*/  STATUS vxmIfCallbackAdd    (    int		funcNo,		/* callback function number */    FUNCPTR 	func,		/* callback function */    UINT32	arg,		/* required argument to pass */     UINT32	maxargs,	/* max. number of optional args */    UINT32	state		/* initial state of callback */    )    {    if (pVxmIfOps->vxmClbkAdd == NULL)	return (ERROR);    return ((* pVxmIfOps->vxmClbkAdd) (funcNo, func, arg, maxargs, state));    }/******************************************************************************** vxmIfCallbackReady - set the state of the given callback to ready.**/  STATUS vxmIfCallbackReady     (    int	funcNo			/* number of callback */    )    {    if (pVxmIfOps->vxmClbkState == NULL)	return (ERROR);    return ((* pVxmIfOps->vxmClbkState) (funcNo));    }/******************************************************************************** vxmIfCallbackQuery - query the host for action on the given callback.* */  STATUS vxmIfCallbackQuery    (    int	funcNo			/* callback to query */    )    {    if (pVxmIfOps->vxmClbkQuery == NULL)	return (ERROR);    return ((* pVxmIfOps->vxmClbkQuery) (funcNo));    }