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/***************************************************************************
* CVSID: $Id$
*
* Input device class
*
* Copyright (C) 2003 David Zeuthen, <david@fubar.dk>
*
* Licensed under the Academic Free License version 2.0
*
* 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
* (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <assert.h>
#include <unistd.h>
#include <stdarg.h>
#include <limits.h>
#include "../logger.h"
#include "../device_store.h"
#include "../hald.h"
#include "class_device.h"
#include "common.h"
/**
* @defgroup HalDaemonLinuxInput Input class
* @ingroup HalDaemonLinux
* @brief Input class
* @{
*/
/** This method is called just before the device is either merged
* onto the sysdevice or added to the GDL (cf. merge_or_add).
* This is useful for extracting more information about the device
* through e.g. ioctl's using the device file property and also
* for setting info.category|capability.
*
* @param self Pointer to class members
* @param d The HalDevice object of the instance of
* this device class
* @param sysfs_path The path in sysfs (including mount point) of
* the class device in sysfs
* @param class_device Libsysfs object representing class device
* instance
*/
static void
input_class_post_process (ClassDeviceHandler *self,
HalDevice *d,
const char *sysfs_path,
struct sysfs_class_device *class_device)
{
/* add capabilities for device */
hal_device_property_set_string (d, "info.category", "input");
hal_device_add_capability (d, "input");
/** @todo use some ioctl()'s on the device file (specific by property
* .target_dev) and set additional properties */
/** @todo read some data from sysfs and set additional properties */
}
/** Get the name of that the property that the device file should be put in.
*
* Specialised for input device class as multiple device files belong to
* a single device (such as a mouse).
*
* @param self Pointer to class members
* @param d The HalDevice object of the instance of
* this device class
* @param sysfs_path The path in sysfs (including mount point) of
* the class device in sysfs
* @param class_device Libsysfs object representing class device
* instance
* @param dev_file_prop Device file property name (out)
* @param dev_file_prop_len Maximum length of string
*/
static void
input_class_get_device_file_target (ClassDeviceHandler *self,
HalDevice *d,
const char *sysfs_path,
struct sysfs_class_device *class_device,
char* dev_file_prop,
int dev_file_prop_len)
{
const char *sysfs_name;
/* since we have multiple device files for class mouse we need
* to merge them into different, welldefined, properties */
sysfs_name = get_last_element (sysfs_path);
if (strlen (sysfs_name) > sizeof("event")-1 &&
strncmp (sysfs_name, "event", sizeof("event")-1) == 0) {
strncpy(dev_file_prop, "input.device", dev_file_prop_len);
} else {
/* according to kernel sources if the sysfs name doesn't
* conform to /sys/class/input/event%d it is a device file
* for accessing the input device through an architecture
* dependent inferface (e.g. PS/2 on x86). */
strncpy(dev_file_prop, "input.device.arch", dev_file_prop_len);
}
}
/** Method specialisations for input device class */
ClassDeviceHandler input_class_handler = {
class_device_init, /**< init function */
class_device_detection_done, /**< detection is done */
class_device_shutdown, /**< shutdown function */
class_device_tick, /**< timer function */
class_device_accept, /**< accept function */
class_device_visit, /**< visitor function */
class_device_removed, /**< class device is removed */
class_device_udev_event, /**< handle udev event */
input_class_get_device_file_target, /**< where to store devfile name */
input_class_post_process, /**< add more properties */
NULL, /**< No UDI computation */
"input", /**< sysfs class name */
"input", /**< hal class name */
TRUE, /**< require device file */
TRUE /**< merge onto sysdevice */
};
/** @} */
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