api_2.5.6.1/api/rtdm_2internal_8h_source.html

00001 /*
00002  * Copyright (C) 2005-2007 Jan Kiszka <[email protected]>.
00003  * Copyright (C) 2005 Joerg Langenberg <[email protected]>.
00004  *
00005  * Xenomai is free software; you can redistribute it and/or modify it
00006  * under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * Xenomai is distributed in the hope that it will be useful, but
00011  * WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with Xenomai; if not, write to the Free Software Foundation,
00017  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00018  */
00019
00020 #ifndef _RTDM_INTERNAL_H
00021 #define _RTDM_INTERNAL_H
00022
00023 #include <linux/list.h>
00024 #include <linux/proc_fs.h>
00025 #include <linux/sem.h>
00026
00027 #include <nucleus/pod.h>
00028 #include <nucleus/ppd.h>
00029 #include <rtdm/rtdm_driver.h>
00030
00031 #ifndef CONFIG_XENO_OPT_DEBUG_RTDM_APPL
00032 #define CONFIG_XENO_OPT_DEBUG_RTDM_APPL 0
00033 #endif
00034
00035 #define RTDM_FD_MAX                     CONFIG_XENO_OPT_RTDM_FILDES
00036
00037 #define DEF_DEVNAME_HASHTAB_SIZE        256     /* entries in name hash table */
00038 #define DEF_PROTO_HASHTAB_SIZE          256     /* entries in protocol hash table */
00039
00040 struct rtdm_fildes {
00041         struct rtdm_dev_context *context;
00042 };
00043
00044 struct rtdm_process {
00045 #ifdef CONFIG_PROC_FS
00046         char name[32];
00047         pid_t pid;
00048 #endif /* CONFIG_PROC_FS */
00049
00050         xnshadow_ppd_t ppd;
00051 };
00052
00053 DECLARE_EXTERN_XNLOCK(rt_fildes_lock);
00054 DECLARE_EXTERN_XNLOCK(rt_dev_lock);
00055
00056 extern int __rtdm_muxid;
00057 extern struct rtdm_fildes fildes_table[];
00058 extern int open_fildes;
00059 extern struct semaphore nrt_dev_lock;
00060 extern unsigned int devname_hashtab_size;
00061 extern unsigned int protocol_hashtab_size;
00062 extern struct list_head *rtdm_named_devices;
00063 extern struct list_head *rtdm_protocol_devices;
00064 extern struct proc_dir_entry *rtdm_proc_root;
00065
00066 #ifdef MODULE
00067 #define rtdm_initialised 1
00068 #else /* !MODULE */
00069 extern int rtdm_initialised;
00070 #endif /* MODULE */
00071
00072 void cleanup_owned_contexts(void *user_info);
00073 int rtdm_no_support(void);
00074 struct rtdm_device *get_named_device(const char *name);
00075 struct rtdm_device *get_protocol_device(int protocol_family, int socket_type);
00076
00077 static inline void rtdm_dereference_device(struct rtdm_device *device)
00078 {
00079         atomic_dec(&device->reserved.refcount);
00080 }
00081
00082 int __init rtdm_dev_init(void);
00083 void rtdm_dev_cleanup(void);
00084
00085 int rtdm_proc_register_device(struct rtdm_device *device);
00086 int __init rtdm_proc_init(void);
00087 void rtdm_proc_cleanup(void);
00088 void rtdm_apc_handler(void *cookie);
00089
00090 #endif /* _RTDM_INTERNAL_H */