128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
/*
|
|
* (C) Copyright IBM Corporation 2006
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* on the rights to use, copy, modify, merge, publish, distribute, sub
|
|
* license, and/or sell copies of the Software, and to permit persons to whom
|
|
* the Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
* IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/**
|
|
* \file common_init.c
|
|
* Platform independent routines for initializing access to the PCI system.
|
|
*
|
|
* \author Ian Romanick <idr@us.ibm.com>
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
|
|
#include "pciaccess.h"
|
|
#include "pciaccess_private.h"
|
|
|
|
_pci_hidden struct pci_system * pci_sys;
|
|
|
|
/**
|
|
* Initialize the PCI subsystem for access.
|
|
*
|
|
* \return
|
|
* Zero on success or an errno value on failure. In particular, if no
|
|
* platform-specific initializers are available, \c ENOSYS will be returned.
|
|
*
|
|
* \sa pci_system_cleanup
|
|
*/
|
|
|
|
int
|
|
pci_system_init( void )
|
|
{
|
|
int err = ENOSYS;
|
|
|
|
#ifdef linux
|
|
err = pci_system_linux_sysfs_create();
|
|
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
|
err = pci_system_freebsd_create();
|
|
#elif defined(__NetBSD__)
|
|
err = pci_system_netbsd_create();
|
|
#elif defined(__OpenBSD__)
|
|
err = pci_system_openbsd_create();
|
|
#elif defined(__sun)
|
|
err = pci_system_solx_devfs_create();
|
|
#elif defined(__GNU__)
|
|
err = pci_system_x86_create();
|
|
#endif
|
|
|
|
return err;
|
|
}
|
|
|
|
void
|
|
pci_system_init_dev_mem(int fd)
|
|
{
|
|
#ifdef __OpenBSD__
|
|
pci_system_openbsd_init_dev_mem(fd);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Shutdown all access to the PCI subsystem.
|
|
*
|
|
* \sa pci_system_init
|
|
*/
|
|
void
|
|
pci_system_cleanup( void )
|
|
{
|
|
unsigned i;
|
|
unsigned j;
|
|
|
|
|
|
if ( pci_sys == NULL ) {
|
|
return;
|
|
}
|
|
|
|
pci_io_cleanup();
|
|
|
|
if ( pci_sys->devices ) {
|
|
for ( i = 0 ; i < pci_sys->num_devices ; i++ ) {
|
|
for ( j = 0 ; j < 6 ; j++ ) {
|
|
(void) pci_device_unmap_region( & pci_sys->devices[i].base, j );
|
|
}
|
|
|
|
free( (char *) pci_sys->devices[i].device_string );
|
|
free( (char *) pci_sys->devices[i].agp );
|
|
|
|
pci_sys->devices[i].device_string = NULL;
|
|
pci_sys->devices[i].agp = NULL;
|
|
|
|
if ( pci_sys->methods->destroy_device != NULL ) {
|
|
(*pci_sys->methods->destroy_device)( & pci_sys->devices[i].base );
|
|
}
|
|
}
|
|
|
|
free( pci_sys->devices );
|
|
pci_sys->devices = NULL;
|
|
pci_sys->num_devices = 0;
|
|
}
|
|
|
|
|
|
if ( pci_sys->methods->destroy != NULL ) {
|
|
(*pci_sys->methods->destroy)();
|
|
}
|
|
|
|
free( pci_sys );
|
|
pci_sys = NULL;
|
|
}
|