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dad5274522
names. Add "dev" pointer in struct net_device to tie network interfaces back to a hardware device. Force natural alignment of data types in __table() macros. This seems to prevent gcc from taking the unilateral decision to occasionally increase their alignment (which screws up the table packing).
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/*
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* Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <string.h>
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#include <gpxe/list.h>
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#include <gpxe/tables.h>
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#include <gpxe/device.h>
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/**
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* @file
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*
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* Device model
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*
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*/
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static struct root_device root_devices[0]
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__table_start ( struct root_device, root_devices );
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static struct root_device root_devices_end[0]
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__table_end ( struct root_device, root_devices );
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/** Registered root devices */
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static LIST_HEAD ( devices );
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/**
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* Probe a root device
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*
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* @v rootdev Root device
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* @ret rc Return status code
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*/
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static int rootdev_probe ( struct root_device *rootdev ) {
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int rc;
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DBG ( "Adding %s root bus\n", rootdev->dev.name );
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if ( ( rc = rootdev->driver->probe ( rootdev ) ) != 0 ) {
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DBG ( "Failed to add %s root bus: %s\n",
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rootdev->dev.name, strerror ( rc ) );
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return rc;
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}
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return 0;
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}
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/**
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* Remove a root device
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*
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* @v rootdev Root device
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*/
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static void rootdev_remove ( struct root_device *rootdev ) {
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rootdev->driver->remove ( rootdev );
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DBG ( "Removed %s root bus\n", rootdev->dev.name );
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}
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/**
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* Probe all devices
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*
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* @ret rc Return status code
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*
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* This initiates probing for all devices in the system. After this
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* call, the device hierarchy will be populated, and all hardware
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* should be ready to use.
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*/
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int probe_devices ( void ) {
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struct root_device *rootdev;
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int rc;
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for ( rootdev = root_devices; rootdev < root_devices_end; rootdev++ ) {
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list_add ( &rootdev->dev.siblings, &devices );
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INIT_LIST_HEAD ( &rootdev->dev.children );
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if ( ( rc = rootdev_probe ( rootdev ) ) != 0 )
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list_del ( &rootdev->dev.siblings );
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}
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return 0;
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}
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/**
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* Remove all devices
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*
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*/
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void remove_devices ( void ) {
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struct root_device *rootdev;
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struct root_device *tmp;
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list_for_each_entry_safe ( rootdev, tmp, &devices, dev.siblings ) {
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rootdev_remove ( rootdev );
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list_del ( &rootdev->dev.siblings );
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}
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}
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