hwgraph.legacy(D3X)hwgraph.legacy(D3X)NAME
hwgraph.legacy: gio_hwgraph_lookup, io4_hwgraph_lookup,
vme_hwgraph_lookup - legacy device hardware support
SYNOPSIS
#include <sys/types.h>
#include <sys/hwgraph.h>
#include <sys/ddi.h>
#include <sys/invent.h>
#include <sys/giobus.h>
#include <sys/EVEREST/io4.h>
#include <sys/vmereg.h>
graph_error_t
gio_hwgraph_lookup(caddr_t addr, vertex_hdl_t *ret);
graph_error_t
io4_hwgraph_lookup(uint slot, vertex_hdl_t *ret);
graph_error_t
vme_hwgraph_lookup(uint adapter, vertex_hdl_t *ret);
Arguments
addr The memory address of the device (used to determine the GIO
slot).
adapter The VME adapter number of the VME bus to which the device is
attached.
slot An IO4 slot number.
ret A vertex representing the desired bus.
DESCRIPTION
These functions provide rudimentary hardware graph support for legacy
devices which use the GIO, HIO, or VME busses. Devices using newer
busses, such as PCI or XTALK should use the facilities that support the
appropriate bus.
The routines described herein are provided to allow older devices to
appear in the hardware graph file system.
gio_hwgraph_lookup
This routine returns a vertex for the GIO bus slot the device is
using. addr represents a memory address for the device; this is
normally the e_base address from the edt structure.
io4_hwgraph_lookup
This routine returns a vertex for the IO4 to which the device is
attached. slot represents an EBUS slot.
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hwgraph.legacy(D3X)hwgraph.legacy(D3X)
vme_hwgraph_lookup
This routine returns a vertex for the VME bus the device is using.
adapter represents a VME adapter number for the device; this is
normally the e_adap value from the edt structure.
DIAGNOSTICS
These routines return GRAPH_SUCCESS if successful. Otherwise, the
following diagnostic can be returned:
GRAPH_NOT_FOUND
No node was found for the desired bus entry.
SEE ALSOhinv(1), ioconfig(1), getinvent(3), hwgraph.dev(D3X), hwgraph.intro(D4X).
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