'\" te
.\"  Copyright (c) 1995, Sun Microsystems, Inc. , All Rights Reserved
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
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.TH pci_config_setup 9F "1 Jan 1997" "SunOS 5.11" "Kernel Functions for Drivers"
.SH NAME
pci_config_setup, pci_config_teardown \- setup or tear down the resources for
enabling accesses to the PCI Local Bus Configuration space
.SH SYNOPSIS
.LP
.nf
#include <sys/ddi.h>
 #include <sys/sunddi.h> 



\fBint\fR \fBpci_config_setup\fR(\fBdev_info_t\fR \fI*dip\fR, \fBddi_acc_handle_t\fR \fI*handle\fR);
.fi

.LP
.nf
\fBvoid\fR \fBpci_config_teardown\fR(\fBddi_acc_handle_t\fR \fI*handle\fR);
.fi

.SH INTERFACE LEVEL
.sp
.LP
Solaris DDI specific (Solaris DDI).
.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIdip\fR \fR
.ad
.RS 11n
.rt  
Pointer to the device's \fBdev_info\fR structure.
.RE

.sp
.ne 2
.mk
.na
\fB\fIhandle\fR \fR
.ad
.RS 11n
.rt  
Pointer to a data access handle.
.RE

.SH DESCRIPTION
.sp
.LP
\fBpci_config_setup()\fR sets up the necessary resources for enabling
subsequent data accesses to the  \fBPCI \fRLocal Bus Configuration space.
\fBpci_config_teardown()\fR reclaims and removes those resources  represented
by the data access handle returned from  \fBpci_config_setup()\fR.
.SH RETURN VALUES
.sp
.LP
\fBpci_config_setup()\fR returns:
.sp
.ne 2
.mk
.na
\fB\fBDDI_SUCCESS\fR \fR
.ad
.RS 16n
.rt  
Successfully setup the resources.
.RE

.sp
.ne 2
.mk
.na
\fB\fBDDI_FAILURE\fR \fR
.ad
.RS 16n
.rt  
Unable to allocate resources for setup.
.RE

.SH CONTEXT
.sp
.LP
\fBpci_config_setup()\fR must be called from user or kernel context.
\fBpci_config_teardown()\fR can be called from any context.
.SH NOTES
.sp
.LP
These functions are specific to \fBPCI \fRbus device drivers. For drivers using
these functions,  a single source to support devices with multiple bus versions
may not be easy to maintain.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
ArchitecturePCI Local Bus
.TE

.SH SEE ALSO
.sp
.LP
\fBattributes\fR(5)
.sp
.LP
\fIIEEE 1275 PCI Bus Binding\fR