mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-19 18:24:14 +08:00
9a58a80a70
Convert code away from ->read_proc/->write_proc interfaces. Switch to
proc_create()/proc_create_data() which make addition of proc entries
reliable wrt NULL ->proc_fops, NULL ->data and so on.
Problem with ->read_proc et al is described here commit
786d7e1612 "Fix rmmod/read/write races in
/proc entries"
[akpm@linux-foundation.org: CONFIG_PROC_FS=n build fix]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
153 lines
3.5 KiB
C
153 lines
3.5 KiB
C
/* $Id: diva_didd.c,v 1.13.6.4 2005/02/11 19:40:25 armin Exp $
|
|
*
|
|
* DIDD Interface module for Eicon active cards.
|
|
*
|
|
* Functions are in dadapter.c
|
|
*
|
|
* Copyright 2002-2003 by Armin Schindler (mac@melware.de)
|
|
* Copyright 2002-2003 Cytronics & Melware (info@melware.de)
|
|
*
|
|
* This software may be used and distributed according to the terms
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <net/net_namespace.h>
|
|
|
|
#include "platform.h"
|
|
#include "di_defs.h"
|
|
#include "dadapter.h"
|
|
#include "divasync.h"
|
|
#include "did_vers.h"
|
|
|
|
static char *main_revision = "$Revision: 1.13.6.4 $";
|
|
|
|
static char *DRIVERNAME =
|
|
"Eicon DIVA - DIDD table (http://www.melware.net)";
|
|
static char *DRIVERLNAME = "divadidd";
|
|
char *DRIVERRELEASE_DIDD = "2.0";
|
|
|
|
MODULE_DESCRIPTION("DIDD table driver for diva drivers");
|
|
MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
|
|
MODULE_SUPPORTED_DEVICE("Eicon diva drivers");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
#define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR)
|
|
#define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG)
|
|
|
|
extern int diddfunc_init(void);
|
|
extern void diddfunc_finit(void);
|
|
|
|
extern void DIVA_DIDD_Read(void *, int);
|
|
|
|
static struct proc_dir_entry *proc_didd;
|
|
struct proc_dir_entry *proc_net_eicon = NULL;
|
|
|
|
EXPORT_SYMBOL(DIVA_DIDD_Read);
|
|
EXPORT_SYMBOL(proc_net_eicon);
|
|
|
|
static char *getrev(const char *revision)
|
|
{
|
|
char *rev;
|
|
char *p;
|
|
if ((p = strchr(revision, ':'))) {
|
|
rev = p + 2;
|
|
p = strchr(rev, '$');
|
|
*--p = 0;
|
|
} else
|
|
rev = "1.0";
|
|
return rev;
|
|
}
|
|
|
|
static int divadidd_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
char tmprev[32];
|
|
|
|
strcpy(tmprev, main_revision);
|
|
seq_printf(m, "%s\n", DRIVERNAME);
|
|
seq_printf(m, "name : %s\n", DRIVERLNAME);
|
|
seq_printf(m, "release : %s\n", DRIVERRELEASE_DIDD);
|
|
seq_printf(m, "build : %s(%s)\n",
|
|
diva_didd_common_code_build, DIVA_BUILD);
|
|
seq_printf(m, "revision : %s\n", getrev(tmprev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int divadidd_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, divadidd_proc_show, NULL);
|
|
}
|
|
|
|
static const struct file_operations divadidd_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = divadidd_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int DIVA_INIT_FUNCTION create_proc(void)
|
|
{
|
|
proc_net_eicon = proc_mkdir("eicon", init_net.proc_net);
|
|
|
|
if (proc_net_eicon) {
|
|
proc_didd = proc_create(DRIVERLNAME, S_IRUGO, proc_net_eicon,
|
|
&divadidd_proc_fops);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void remove_proc(void)
|
|
{
|
|
remove_proc_entry(DRIVERLNAME, proc_net_eicon);
|
|
remove_proc_entry("eicon", init_net.proc_net);
|
|
}
|
|
|
|
static int DIVA_INIT_FUNCTION divadidd_init(void)
|
|
{
|
|
char tmprev[32];
|
|
int ret = 0;
|
|
|
|
printk(KERN_INFO "%s\n", DRIVERNAME);
|
|
printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIDD);
|
|
strcpy(tmprev, main_revision);
|
|
printk("%s Build:%s(%s)\n", getrev(tmprev),
|
|
diva_didd_common_code_build, DIVA_BUILD);
|
|
|
|
if (!create_proc()) {
|
|
printk(KERN_ERR "%s: could not create proc entry\n",
|
|
DRIVERLNAME);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (!diddfunc_init()) {
|
|
printk(KERN_ERR "%s: failed to connect to DIDD.\n",
|
|
DRIVERLNAME);
|
|
#ifdef MODULE
|
|
remove_proc();
|
|
#endif
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return (ret);
|
|
}
|
|
|
|
static void DIVA_EXIT_FUNCTION divadidd_exit(void)
|
|
{
|
|
diddfunc_finit();
|
|
remove_proc();
|
|
printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
|
|
}
|
|
|
|
module_init(divadidd_init);
|
|
module_exit(divadidd_exit);
|