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-rw-r--r--libsysfs/sysfs_bus.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/libsysfs/sysfs_bus.c b/libsysfs/sysfs_bus.c
deleted file mode 100644
index 921ef32094..0000000000
--- a/libsysfs/sysfs_bus.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
- * sysfs_bus.c
- *
- * Generic bus utility functions for libsysfs
- *
- * Copyright (C) IBM Corp. 2003-2005
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-#include "libsysfs.h"
-#include "sysfs.h"
-
-static void sysfs_close_dev(void *dev)
-{
- sysfs_close_device((struct sysfs_device *)dev);
-}
-
-static void sysfs_close_drv(void *drv)
-{
- sysfs_close_driver((struct sysfs_driver *)drv);
-}
-
-/*
- * compares names.
- * @a: name looked for
- * @b: sysfs_device comparing being compared
- * returns 1 if a==b->name or 0 not equal
- */
-static int name_equal(void *a, void *b)
-{
- if (!a || !b)
- return 0;
-
- if (strcmp(((char *)a), ((struct sysfs_device *)b)->name) == 0)
- return 1;
-
- return 0;
-}
-
-/**
- * sysfs_close_bus: close single bus
- * @bus: bus structure
- */
-void sysfs_close_bus(struct sysfs_bus *bus)
-{
- if (bus) {
- if (bus->attrlist)
- dlist_destroy(bus->attrlist);
- if (bus->devices)
- dlist_destroy(bus->devices);
- if (bus->drivers)
- dlist_destroy(bus->drivers);
- free(bus);
- }
-}
-
-/**
- * alloc_bus: mallocs new bus structure
- * returns sysfs_bus_bus struct or NULL
- */
-static struct sysfs_bus *alloc_bus(void)
-{
- return (struct sysfs_bus *)calloc(1, sizeof(struct sysfs_bus));
-}
-
-/**
- * sysfs_get_bus_devices: gets all devices for bus
- * @bus: bus to get devices for
- * returns dlist of devices with success and NULL with failure
- */
-struct dlist *sysfs_get_bus_devices(struct sysfs_bus *bus)
-{
- struct sysfs_device *dev;
- struct dlist *linklist;
- char path[SYSFS_PATH_MAX], devpath[SYSFS_PATH_MAX];
- char target[SYSFS_PATH_MAX];
- char *curlink;
-
- if (!bus) {
- errno = EINVAL;
- return NULL;
- }
- memset(path, 0, SYSFS_PATH_MAX);
- safestrcpy(path, bus->path);
- safestrcat(path, "/");
- safestrcat(path, SYSFS_DEVICES_NAME);
-
- linklist = read_dir_links(path);
- if (linklist) {
- dlist_for_each_data(linklist, curlink, char) {
- if (bus->devices) {
- dev = (struct sysfs_device *)
- dlist_find_custom(bus->devices,
- (void *)curlink, name_equal);
- if (dev)
- continue;
- }
- safestrcpy(devpath, path);
- safestrcat(devpath, "/");
- safestrcat(devpath, curlink);
- if (sysfs_get_link(devpath, target, SYSFS_PATH_MAX)) {
- dprintf("Error getting link - %s\n", devpath);
- continue;
- }
- dev = sysfs_open_device_path(target);
- if (!dev) {
- dprintf("Error opening device at %s\n",
- target);
- continue;
- }
- if (!bus->devices)
- bus->devices = dlist_new_with_delete
- (sizeof(struct sysfs_device),
- sysfs_close_dev);
- dlist_unshift_sorted(bus->devices, dev, sort_list);
- }
- sysfs_close_list(linklist);
- }
- return (bus->devices);
-}
-
-/**
- * sysfs_get_bus_drivers: gets all drivers for bus
- * @bus: bus to get devices for
- * returns dlist of devices with success and NULL with failure
- */
-struct dlist *sysfs_get_bus_drivers(struct sysfs_bus *bus)
-{
- struct sysfs_driver *drv;
- struct dlist *dirlist;
- char path[SYSFS_PATH_MAX], drvpath[SYSFS_PATH_MAX];
- char *curdir;
-
- if (!bus) {
- errno = EINVAL;
- return NULL;
- }
- memset(path, 0, SYSFS_PATH_MAX);
- safestrcpy(path, bus->path);
- safestrcat(path, "/");
- safestrcat(path, SYSFS_DRIVERS_NAME);
-
- dirlist = read_dir_subdirs(path);
- if (dirlist) {
- dlist_for_each_data(dirlist, curdir, char) {
- if (bus->drivers) {
- drv = (struct sysfs_driver *)
- dlist_find_custom(bus->drivers,
- (void *)curdir, name_equal);
- if (drv)
- continue;
- }
- safestrcpy(drvpath, path);
- safestrcat(drvpath, "/");
- safestrcat(drvpath, curdir);
- drv = sysfs_open_driver_path(drvpath);
- if (!drv) {
- dprintf("Error opening driver at %s\n",
- drvpath);
- continue;
- }
- if (!bus->drivers)
- bus->drivers = dlist_new_with_delete
- (sizeof(struct sysfs_driver),
- sysfs_close_drv);
- dlist_unshift_sorted(bus->drivers, drv, sort_list);
- }
- sysfs_close_list(dirlist);
- }
- return (bus->drivers);
-}
-
-/**
- * sysfs_open_bus: opens specific bus and all its devices on system
- * returns sysfs_bus structure with success or NULL with error.
- */
-struct sysfs_bus *sysfs_open_bus(const char *name)
-{
- struct sysfs_bus *bus;
- char buspath[SYSFS_PATH_MAX];
-
- if (!name) {
- errno = EINVAL;
- return NULL;
- }
-
- memset(buspath, 0, SYSFS_PATH_MAX);
- if (sysfs_get_mnt_path(buspath, SYSFS_PATH_MAX)) {
- dprintf("Sysfs not supported on this system\n");
- return NULL;
- }
-
- safestrcat(buspath, "/");
- safestrcat(buspath, SYSFS_BUS_NAME);
- safestrcat(buspath, "/");
- safestrcat(buspath, name);
- if (sysfs_path_is_dir(buspath)) {
- dprintf("Invalid path to bus: %s\n", buspath);
- return NULL;
- }
- bus = alloc_bus();
- if (!bus) {
- dprintf("calloc failed\n");
- return NULL;
- }
- safestrcpy(bus->name, name);
- safestrcpy(bus->path, buspath);
- if (sysfs_remove_trailing_slash(bus->path)) {
- dprintf("Incorrect path to bus %s\n", bus->path);
- sysfs_close_bus(bus);
- return NULL;
- }
-
- return bus;
-}
-
-/**
- * sysfs_get_bus_device: Get specific device on bus using device's id
- * @bus: bus to find device on
- * @id: bus_id for device
- * returns struct sysfs_device reference or NULL if not found.
- */
-struct sysfs_device *sysfs_get_bus_device(struct sysfs_bus *bus,
- const char *id)
-{
- struct sysfs_device *dev = NULL;
- char devpath[SYSFS_PATH_MAX], target[SYSFS_PATH_MAX];
-
- if (!bus || !id) {
- errno = EINVAL;
- return NULL;
- }
-
- if (bus->devices) {
- dev = (struct sysfs_device *)dlist_find_custom
- (bus->devices, (void *)id, name_equal);
- if (dev)
- return dev;
- }
- safestrcpy(devpath, bus->path);
- safestrcat(devpath, "/");
- safestrcat(devpath, SYSFS_DEVICES_NAME);
- safestrcat(devpath, "/");
- safestrcat(devpath, id);
- if (sysfs_path_is_link(devpath)) {
- dprintf("No such device %s on bus %s?\n", id, bus->name);
- return NULL;
- }
- if (!sysfs_get_link(devpath, target, SYSFS_PATH_MAX)) {
- dev = sysfs_open_device_path(target);
- if (!dev) {
- dprintf("Error opening device at %s\n", target);
- return NULL;
- }
- if (!bus->devices)
- bus->devices = dlist_new_with_delete
- (sizeof(struct sysfs_device),
- sysfs_close_dev);
- dlist_unshift_sorted(bus->devices, dev, sort_list);
- }
- return dev;
-}
-
-/**
- * sysfs_get_bus_driver: Get specific driver on bus using driver name
- * @bus: bus to find driver on
- * @drvname: name of driver
- * returns struct sysfs_driver reference or NULL if not found.
- */
-struct sysfs_driver *sysfs_get_bus_driver(struct sysfs_bus *bus,
- const char *drvname)
-{
- struct sysfs_driver *drv;
- char drvpath[SYSFS_PATH_MAX];
-
- if (!bus || !drvname) {
- errno = EINVAL;
- return NULL;
- }
-
- if (bus->drivers) {
- drv = (struct sysfs_driver *)dlist_find_custom
- (bus->drivers, (void *)drvname, name_equal);
- if (drv)
- return drv;
- }
- safestrcpy(drvpath, bus->path);
- safestrcat(drvpath, "/");
- safestrcat(drvpath, SYSFS_DRIVERS_NAME);
- safestrcat(drvpath, "/");
- safestrcat(drvpath, drvname);
- drv = sysfs_open_driver_path(drvpath);
- if (!drv) {
- dprintf("Error opening driver at %s\n", drvpath);
- return NULL;
- }
- if (!bus->drivers)
- bus->drivers = dlist_new_with_delete
- (sizeof(struct sysfs_driver),
- sysfs_close_drv);
- dlist_unshift_sorted(bus->drivers, drv, sort_list);
- return drv;
-}
-
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