diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/linux/linux.c')
-rw-r--r-- | qemu/roms/ipxe/src/drivers/linux/linux.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/qemu/roms/ipxe/src/drivers/linux/linux.c b/qemu/roms/ipxe/src/drivers/linux/linux.c deleted file mode 100644 index 83546b27e..000000000 --- a/qemu/roms/ipxe/src/drivers/linux/linux.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright (C) 2010 Piotr JaroszyĆski <p.jaroszynski@gmail.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -FILE_LICENCE(GPL2_OR_LATER); - -/** @file - * - * Linux root_device and root_driver. - */ - -#include <errno.h> -#include <string.h> -#include <stdio.h> -#include <ipxe/linux.h> -#include <ipxe/malloc.h> -#include <ipxe/settings.h> - -LIST_HEAD(linux_device_requests); -LIST_HEAD(linux_global_settings); - -/** Go over the device requests looking for a matching linux driver to handle them. */ -static int linux_probe(struct root_device *rootdev) -{ - struct linux_device_request *request; - struct linux_driver *driver; - struct linux_device *device = NULL; - int rc; - - /* Apply global settings */ - linux_apply_settings(&linux_global_settings, NULL); - - list_for_each_entry(request, &linux_device_requests, list) { - if (! device) - device = zalloc(sizeof(*device)); - - if (! device) - return -ENOMEM; - - rc = 1; - - for_each_table_entry(driver, LINUX_DRIVERS) { - if ((rc = strcmp(driver->name, request->driver)) == 0) - break; - } - - if (rc != 0) { - printf("Linux driver '%s' not found\n", request->driver); - continue; - } - - if (! driver->can_probe) { - printf("Driver '%s' cannot handle any more devices\n", driver->name); - continue; - } - - /* We found a matching driver so add the device to the hierarchy */ - list_add(&device->dev.siblings, &rootdev->dev.children); - device->dev.parent = &rootdev->dev; - INIT_LIST_HEAD(&device->dev.children); - - if (driver->probe(device, request) == 0) { - device->driver = driver; - device->dev.driver_name = driver->name; - /* Driver handled the device so release ownership */ - device = NULL; - } else { - /* Driver failed to handle the device so remove it from the hierarchy - * and reuse the object */ - list_del(&device->dev.siblings); - } - }; - - free(device); - - return 0; -} - -/** Remove all the linux devices registered in probe() */ -static void linux_remove(struct root_device *rootdev) -{ - struct linux_device *device; - struct linux_device *tmp; - - list_for_each_entry_safe(device, tmp, &rootdev->dev.children, dev.siblings) { - list_del(&device->dev.siblings); - device->driver->remove(device); - free(device); - } -} - -/** Linux root driver */ -static struct root_driver linux_root_driver = { - .probe = linux_probe, - .remove = linux_remove, -}; - -/** Linux root device */ -struct root_device linux_root_device __root_device = { - .dev = { .name = "linux" }, - .driver = &linux_root_driver, -}; - -struct linux_setting *linux_find_setting(char *name, struct list_head *settings) -{ - struct linux_setting *setting; - struct linux_setting *result = NULL; - - /* Find the last occurrence of a setting with the specified name */ - list_for_each_entry(setting, settings, list) { - if (strcmp(setting->name, name) == 0) { - result = setting; - } - } - - return result; -} - -void linux_apply_settings(struct list_head *new_settings, struct settings *settings_block) -{ - struct linux_setting *setting; - int rc; - - list_for_each_entry(setting, new_settings, list) { - /* Skip already applied settings */ - if (setting->applied) - continue; - - struct setting *s = find_setting(setting->name); - if (s) { - rc = storef_setting(settings_block, find_setting(setting->name), setting->value); - if (rc != 0) - DBG("linux storing setting '%s' = '%s' failed\n", setting->name, setting->value); - setting->applied = 1; - } else { - DBG("linux unknown setting '%s'\n", setting->name); - } - } -} |