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Commit 13db3bef authored by Lidza Louina's avatar Lidza Louina Committed by Greg Kroah-Hartman
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staging: dgap: removes proc.c 

This patch removes proc.c. This code isn't needed anymore because
a previous patch removed references to it and because the kernel
uses sysfs instead of proc.
Signed-off-by: default avatarLidza Louina <lidza.louina@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent cbe0ffb5
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drivers/staging/dgap/dgap_proc.c deleted 100644 → 0
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/*
* Copyright 2003 Digi International (www.digi.com)
* Scott H Kilau <Scott_Kilau at digi dot 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, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* NOTE TO LINUX KERNEL HACKERS: DO NOT REFORMAT THIS CODE!
*
* This is shared code between Digi's CVS archive and the
* Linux Kernel sources.
* Changing the source just for reformatting needlessly breaks
* our CVS diff history.
*
* Send any bug fixes/changes to: Eng.Linux at digi dot com.
* Thank you.
*
*
* $Id: dgap_proc.c,v 1.2 2010/12/22 21:22:39 markh Exp $
*/
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/sched.h> /* For jiffies, task states */
#include <linux/interrupt.h> /* For tasklet and interrupt structs/defines */
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/proc_fs.h>
#include <linux/serial_reg.h>
#include <linux/sched.h> /* For in_egroup_p() */
#include <linux/string.h>
#include <asm/uaccess.h> /* For copy_from_user/copy_to_user */
#include <linux/cred.h>
#include "dgap_driver.h"
#include "dgap_proc.h"
#include "dgap_conf.h"
#include "dgap_parse.h"
#include "dgap_fep5.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
#define init_MUTEX(sem) sema_init(sem, 1)
#endif
/* The /proc/dgap directory */
static struct proc_dir_entry *ProcDGAP;
/* File operation declarations */
static int dgap_gen_proc_open(struct inode *, struct file *);
static int dgap_gen_proc_close(struct inode *, struct file *);
static ssize_t dgap_gen_proc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos);
static ssize_t dgap_gen_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
static int dgap_proc_chk_perm(struct inode *, int);
static const struct file_operations dgap_proc_file_ops =
{
.owner = THIS_MODULE,
.read = dgap_gen_proc_read, /* read */
.write = dgap_gen_proc_write, /* write */
.open = dgap_gen_proc_open, /* open */
.release = dgap_gen_proc_close, /* release */
};
static struct inode_operations dgap_proc_inode_ops =
{
.permission = dgap_proc_chk_perm
};
static void dgap_register_proc_table(struct dgap_proc_entry *, struct proc_dir_entry *);
static void dgap_unregister_proc_table(struct dgap_proc_entry *, struct proc_dir_entry *);
static void dgap_remove_proc_entry(struct proc_dir_entry *pde);
/* Stuff in /proc/ */
static int dgap_read_info(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_write_info(struct dgap_proc_entry *table, int dir, struct file *filp,
const char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_mknod(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static struct dgap_proc_entry dgap_table[] = {
{DGAP_INFO, "info", 0600, NULL, NULL, NULL, &dgap_read_info, &dgap_write_info,
NULL, __SEMAPHORE_INITIALIZER(dgap_table[0].excl_sem, 1), 0, NULL },
{DGAP_MKNOD, "mknod", 0600, NULL, NULL, NULL, &dgap_read_mknod, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_table[1].excl_sem, 1), 0, NULL },
{0}
};
/* Stuff in /proc/<board>/ */
static int dgap_read_board_info(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_board_vpd(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_board_vpddata(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_board_mknod(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_board_ttystats(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_board_ttyflags(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static struct dgap_proc_entry dgap_board_table[] = {
{DGAP_BOARD_INFO, "info", 0600, NULL, NULL, NULL, &dgap_read_board_info, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_board_table[0].excl_sem, 1), 0, NULL },
{DGAP_BOARD_VPD, "vpd", 0600, NULL, NULL, NULL, &dgap_read_board_vpd, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_board_table[1].excl_sem, 1), 0, NULL },
{DGAP_BOARD_VPDDATA, "vpddata", 0600, NULL, NULL, NULL, &dgap_read_board_vpddata, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_board_table[2].excl_sem, 1), 0, NULL },
{DGAP_BOARD_TTYSTATS, "stats", 0600, NULL, NULL, NULL, &dgap_read_board_ttystats, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_board_table[3].excl_sem, 1), 0, NULL },
{DGAP_BOARD_TTYFLAGS, "flags", 0600, NULL, NULL, NULL, &dgap_read_board_ttyflags, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_board_table[4].excl_sem, 1), 0, NULL },
{DGAP_BOARD_MKNOD, "mknod", 0600, NULL, NULL, NULL, &dgap_read_board_mknod, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_board_table[5].excl_sem, 1), 0, NULL },
{0}
};
/* Stuff in /proc/<board>/<channel> */
static int dgap_read_channel_info(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_open_channel_sniff(struct dgap_proc_entry *table, int dir, struct file *filp,
void *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_close_channel_sniff(struct dgap_proc_entry *table, int dir, struct file *filp,
void *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_channel_sniff(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_channel_custom_ttyname(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_channel_custom_prname(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static int dgap_read_channel_fepstate(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos);
static struct dgap_proc_entry dgap_channel_table[] = {
{DGAP_PORT_INFO, "info", 0600, NULL, NULL, NULL, &dgap_read_channel_info, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_channel_table[0].excl_sem, 1), 0, NULL },
{DGAP_PORT_SNIFF, "sniff", 0600, NULL, &dgap_open_channel_sniff, &dgap_close_channel_sniff, &dgap_read_channel_sniff, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_channel_table[1].excl_sem, 1), 0, NULL},
{DGAP_PORT_CUSTOM_TTYNAME, "ttyname", 0600, NULL, NULL, NULL, &dgap_read_channel_custom_ttyname, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_channel_table[2].excl_sem, 1), 0, NULL },
{DGAP_PORT_CUSTOM_PRNAME, "prname", 0600, NULL, NULL, NULL, &dgap_read_channel_custom_prname, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_channel_table[3].excl_sem, 1), 0, NULL },
{DGAP_PORT_FEPSTATE, "fepstate", 0600, NULL, NULL, NULL, &dgap_read_channel_fepstate, NULL,
NULL, __SEMAPHORE_INITIALIZER(dgap_channel_table[4].excl_sem, 1), 0, NULL },
{0}
};
/*
* test_perm does NOT grant the superuser all rights automatically, because
* some entries are readonly even to root.
*/
static inline int test_perm(int mode, int op)
{
if (!current_euid())
mode >>= 6;
else if (in_egroup_p(0))
mode >>= 3;
if ((mode & op & 0007) == op)
return 0;
if (capable(CAP_SYS_ADMIN))
return 0;
return -EACCES;
}
/*
* /proc/sys support
*/
static inline int dgap_proc_match(int len, const char *name, struct proc_dir_entry *de)
{
if (!de || !de->low_ino)
return 0;
if (de->namelen != len)
return 0;
return !memcmp(name, de->name, len);
}
/*
* Scan the entries in table and add them all to /proc at the position
* referred to by "root"
*/
static void dgap_register_proc_table(struct dgap_proc_entry *table, struct proc_dir_entry *root)
{
struct proc_dir_entry *de;
int len;
mode_t mode;
for (; table->magic; table++) {
/* Can't do anything without a proc name. */
if (!table->name) {
DPR_PROC(("dgap_register_proc_table, no name...\n"));
continue;
}
/* Maybe we can't do anything with it... */
if (!table->read_handler && !table->write_handler && !table->child) {
DPR_PROC((KERN_WARNING "DGAP PROC: Can't register %s\n", table->name));
continue;
}
len = strlen(table->name);
mode = table->mode;
de = NULL;
if (!table->child) {
mode |= S_IFREG;
} else {
mode |= S_IFDIR;
for (de = root->subdir; de; de = de->next) {
if (dgap_proc_match(len, table->name, de))
break;
}
/* If the subdir exists already, de is non-NULL */
}
if (!de) {
de = create_proc_entry(table->name, mode, root);
if (!de)
continue;
de->data = (void *) table;
if (!table->child) {
de->proc_iops = &dgap_proc_inode_ops;
de->proc_fops = &dgap_proc_file_ops;
}
}
table->de = de;
if (de->mode & S_IFDIR)
dgap_register_proc_table(table->child, de);
}
}
/*
* Unregister a /proc sysctl table and any subdirectories.
*/
static void dgap_unregister_proc_table(struct dgap_proc_entry *table, struct proc_dir_entry *root)
{
struct proc_dir_entry *de;
for (; table->magic; table++) {
if (!(de = table->de))
continue;
if (de->mode & S_IFDIR) {
if (!table->child) {
DPR_PROC((KERN_ALERT "Help - malformed sysctl tree on free\n"));
continue;
}
/* recurse down into subdirectory... */
DPR_PROC(("Recursing down a directory...\n"));
dgap_unregister_proc_table(table->child, de);
/* Don't unregister directories which still have entries.. */
if (de->subdir)
continue;
}
/* Don't unregister proc entries that are still being used.. */
if ((atomic_read(&de->count)) != 1) {
DPR_PROC(("proc entry in use... Not removing...\n"));
continue;
}
dgap_remove_proc_entry(de);
table->de = NULL;
}
}
static int dgap_gen_proc_open(struct inode *inode, struct file *file)
{
struct proc_dir_entry *de;
struct dgap_proc_entry *entry;
int (*handler) (struct dgap_proc_entry *table, int dir, struct file *filp,
void *buffer, ssize_t *lenp, loff_t *ppos);
int ret = 0, error = 0;
de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
if (!de || !de->data) {
ret = -ENXIO;
goto done;
}
entry = (struct dgap_proc_entry *) de->data;
if (!entry) {
ret = -ENXIO;
goto done;
}
down(&entry->excl_sem);
if (entry->excl_cnt) {
ret = -EBUSY;
} else {
entry->excl_cnt++;
handler = entry->open_handler;
if (handler) {
error = (*handler) (entry, OUTBOUND, file, NULL, NULL, NULL);
if (error) {
entry->excl_cnt--;
ret = error;
}
}
}
up(&entry->excl_sem);
done:
return ret;
}
static int dgap_gen_proc_close(struct inode *inode, struct file *file)
{
struct proc_dir_entry *de;
int (*handler) (struct dgap_proc_entry *table, int dir, struct file *filp,
void *buffer, ssize_t *lenp, loff_t *ppos);
struct dgap_proc_entry *entry;
int error = 0;
de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
if (!de || !de->data)
goto done;
entry = (struct dgap_proc_entry *) de->data;
if (!entry)
goto done;
down(&entry->excl_sem);
if (entry->excl_cnt)
entry->excl_cnt = 0;
handler = entry->close_handler;
if (handler) {
error = (*handler) (entry, OUTBOUND, file, NULL, NULL, NULL);
}
up(&entry->excl_sem);
done:
return 0;
}
static ssize_t dgap_gen_proc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
{
struct proc_dir_entry *de;
struct dgap_proc_entry *entry;
int (*handler) (struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos2);
ssize_t res;
ssize_t error;
de = (struct proc_dir_entry*) PDE(file->f_dentry->d_inode);
if (!de || !de->data)
return -ENXIO;
entry = (struct dgap_proc_entry *) de->data;
if (!entry)
return -ENXIO;
/* Test for read permission */
if (test_perm(entry->mode, 4))
return -EPERM;
res = count;
handler = entry->read_handler;
if (!handler)
return -ENXIO;
error = (*handler) (entry, OUTBOUND, file, buf, &res, ppos);
if (error)
return error;
return res;
}
static ssize_t dgap_gen_proc_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct proc_dir_entry *de;
struct dgap_proc_entry *entry;
int (*handler) (struct dgap_proc_entry *table, int dir, struct file *filp,
const char __user *buffer, ssize_t *lenp, loff_t *ppos2);
ssize_t res;
ssize_t error;
de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
if (!de || !de->data)
return -ENXIO;
entry = (struct dgap_proc_entry *) de->data;
if (!entry)
return -ENXIO;
/* Test for write permission */
if (test_perm(entry->mode, 2))
return -EPERM;
res = count;
handler = entry->write_handler;
if (!handler)
return -ENXIO;
error = (*handler) (entry, INBOUND, file, buf, &res, ppos);
if (error)
return error;
return res;
}
static int dgap_proc_chk_perm(struct inode *inode, int op)
{
return test_perm(inode->i_mode, op);
}
/*
* Return what is (hopefully) useful information about the
* driver.
*/
static int dgap_read_info(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
static int done = 0;
static char buf[4096];
char *p = buf;
DPR_PROC(("dgap_proc_info\n"));
if (done) {
done = 0;
*lenp = 0;
return 0;
}
p += sprintf(p, "Driver:\t\t%s\n", DG_NAME);
p += sprintf(p, "\n");
p += sprintf(p, "Debug:\t\t0x%x\n", dgap_debug);
p += sprintf(p, "Rawreadok:\t0x%x\n", dgap_rawreadok);
p += sprintf(p, "Max Boards:\t%d\n", MAXBOARDS);
p += sprintf(p, "Total Boards:\t%d\n", dgap_NumBoards);
p += sprintf(p, "Poll rate:\t%dms\n", dgap_poll_tick);
p += sprintf(p, "Poll counter:\t%ld\n", dgap_poll_counter);
p += sprintf(p, "State:\t\t%s\n", dgap_driver_state_text[dgap_driver_state]);
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* When writing to the "info" entry point, I actually allow one
* to modify certain variables. This may be a sleazy overload
* of this /proc entry, but I don't want:
*
* a. to clutter /proc more than I have to
* b. to overload the "config" entry, which would be somewhat
* more natural
* c. necessarily advertise the fact this ability exists
*
* The continued support of this feature has not yet been
* guaranteed.
*
* Writing operates on a "state machine" principle.
*
* State 0: waiting for a symbol to start. Waiting for anything
* which isn't " ' = or whitespace.
* State 1: reading a symbol. If the character is a space, move
* to state 2. If =, move to state 3. If " or ', move
* to state 0.
* State 2: Waiting for =... suck whitespace. If anything other
* than whitespace, drop to state 0.
* State 3: Got =. Suck whitespace waiting for value to start.
* If " or ', go to state 4 (and remember which quote it
* was). Otherwise, go to state 5.
* State 4: Reading value, within quotes. Everything is added to
* value up until the matching quote. When you hit the
* matching quote, try to set the variable, then state 0.
* State 5: Reading value, outside quotes. Everything not " ' =
* or whitespace goes in value. Hitting one of the
* terminators tosses us back to state 0 after trying to
* set the variable.
*/
typedef enum {
INFO_NONE, INFO_INT, INFO_CHAR, INFO_SHORT,
INFO_LONG, INFO_PTR, INFO_STRING, INFO_END
} info_proc_var_val;
static struct {
char *name;
info_proc_var_val type;
int rw; /* 0=readonly */
void *val_ptr;
} dgap_info_vars[] = {
{ "rawreadok", INFO_INT, 1, (void *) &dgap_rawreadok },
{ "pollrate", INFO_INT, 1, (void *) &dgap_poll_tick },
{ NULL, INFO_NONE, 0, NULL },
{ "debug", INFO_LONG, 1, (void *) &dgap_debug },
{ NULL, INFO_END, 0, NULL }
};
static void dgap_set_info_var(char *name, char *val)
{
int i;
unsigned long newval;
unsigned char charval;
unsigned short shortval;
unsigned int intval;
for (i = 0; dgap_info_vars[i].type != INFO_END; i++) {
if (dgap_info_vars[i].name)
if (!strcmp(name, dgap_info_vars[i].name))
break;
}
if (dgap_info_vars[i].type == INFO_END)
return;
if (dgap_info_vars[i].rw == 0)
return;
if (dgap_info_vars[i].val_ptr == NULL)
return;
newval = simple_strtoul(val, NULL, 0 );
switch (dgap_info_vars[i].type) {
case INFO_CHAR:
charval = newval & 0xff;
APR(("Modifying %s (%lx) <= 0x%02x (%d)\n",
name, (long)(dgap_info_vars[i].val_ptr ),
charval, charval));
*(uchar *)(dgap_info_vars[i].val_ptr) = charval;
break;
case INFO_SHORT:
shortval = newval & 0xffff;
APR(("Modifying %s (%lx) <= 0x%04x (%d)\n",
name, (long)(dgap_info_vars[i].val_ptr),
shortval, shortval));
*(ushort *)(dgap_info_vars[i].val_ptr) = shortval;
break;
case INFO_INT:
intval = newval & 0xffffffff;
APR(("Modifying %s (%lx) <= 0x%08x (%d)\n",
name, (long)(dgap_info_vars[i].val_ptr),
intval, intval));
*(uint *)(dgap_info_vars[i].val_ptr) = intval;
break;
case INFO_LONG:
APR(("Modifying %s (%lx) <= 0x%lx (%ld)\n",
name, (long)(dgap_info_vars[i].val_ptr),
newval, newval));
*(ulong *)(dgap_info_vars[i].val_ptr) = newval;
break;
case INFO_PTR:
case INFO_STRING:
case INFO_END:
case INFO_NONE:
default:
break;
}
}
static int dgap_write_info(struct dgap_proc_entry *table, int dir, struct file *filp,
const char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
static int state = 0;
#define MAXSYM 255
static int sympos, valpos;
static char sym[MAXSYM + 1];
static char val[MAXSYM + 1];
static int quotchar = 0;
int i;
long len;
#define INBUFLEN 256
char inbuf[INBUFLEN];
if (*ppos == 0) {
state = 0;
sympos = 0; sym[0] = 0;
valpos = 0; val[0] = 0;
quotchar = 0;
}
if ((!*lenp) || (dir != INBOUND)) {
*lenp = 0;
return 0;
}
len = *lenp;
if (len > INBUFLEN - 1)
len = INBUFLEN - 1;
if (copy_from_user(inbuf, buffer, len))
return -EFAULT;
inbuf[len] = 0;
for (i = 0; i < len; i++) {
unsigned char c = inbuf[i];
switch (state) {
case 0:
quotchar = sympos = valpos = sym[0] = val[0] = 0;
if (!isspace(c) && (c != '\"') &&
(c != '\'') && (c != '=')) {
sym[sympos++] = c;
state = 1;
break;
}
break;
case 1:
if (isspace(c)) {
sym[sympos] = 0;
state = 2;
break;
}
if (c == '=') {
sym[sympos] = 0;
state = 3;
break;
}
if ((c == '\"' ) || ( c == '\'' )) {
state = 0;
break;
}
if (sympos < MAXSYM) sym[sympos++] = c;
break;
case 2:
if (isspace(c)) break;
if (c == '=') {
state = 3;
break;
}
if ((c != '\"') && (c != '\'')) {
quotchar = sympos = valpos = sym[0] = val[0] = 0;
sym[sympos++] = c;
state = 1;
break;
}
state = 0;
break;
case 3:
if (isspace(c)) break;
if (c == '=') {
state = 0;
break;
}
if ((c == '\"') || (c == '\'')) {
state = 4;
quotchar = c;
break;
}
val[valpos++] = c;
state = 5;
break;
case 4:
if (c == quotchar) {
val[valpos] = 0;
dgap_set_info_var(sym, val);
state = 0;
break;
}
if (valpos < MAXSYM) val[valpos++] = c;
break;
case 5:
if (isspace(c) || (c == '\"') ||
(c == '\'') || (c == '=')) {
val[valpos] = 0;
dgap_set_info_var(sym, val);
state = 0;
break;
}
if (valpos < MAXSYM) val[valpos++] = c;
break;
default:
break;
}
}
*lenp = len;
*ppos += len;
return len;
}
/*
* Return mknod information for the driver's devices.
*/
static int dgap_read_mknod(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
static int done = 0;
static char buf[4096];
char *p = buf;
DPR_PROC(("dgap_proc_info\n"));
if (done) {
done = 0;
*lenp = 0;
return 0;
}
DPR_PROC(("dgap_proc_mknod\n"));
p += sprintf(p, "#\tCreate the management device.\n");
p += sprintf(p, "/dev/dg/dgap/mgmt\t%d\t%d\t%d\t%d\n", DIGI_DGAP_MAJOR, MGMT_MGMT, 1, 0);
p += sprintf(p, "/dev/dg/dgap/downld\t%d\t%d\t%d\t%d\n", DIGI_DGAP_MAJOR, MGMT_DOWNLD, 1, 0);
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return what is (hopefully) useful information about the specific board.
*/
static int dgap_read_board_info(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
char *name;
DPR_PROC(("dgap_proc_brd_info\n"));
brd = (struct board_t *) table->data;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
name = brd->name;
p += sprintf(p, "Board Name = %s\n", name);
p += sprintf(p, "Board Type = %d\n", brd->type);
p += sprintf(p, "Number of Ports = %d\n", brd->nasync);
/*
* report some things about the PCI bus that are important
* to some applications
*/
p += sprintf(p, "Vendor ID = 0x%x\n", brd->vendor);
p += sprintf(p, "Device ID = 0x%x\n", brd->device);
p += sprintf(p, "Subvendor ID = 0x%x\n", brd->subvendor);
p += sprintf(p, "Subdevice ID = 0x%x\n", brd->subdevice);
p += sprintf(p, "Bus = %d\n", brd->pci_bus);
p += sprintf(p, "Slot = %d\n", brd->pci_slot);
/*
* report the physical addresses assigned to us when we got
* registered
*/
p += sprintf(p, "Memory Base Address = 0x%lx\n", brd->membase);
p += sprintf(p, "Remapped Memory Base Address = 0x%p\n", brd->re_map_membase);
p += sprintf(p, "Current state of board = %s\n", dgap_state_text[brd->state]);
if (brd->bd_flags & BD_FEP5PLUS)
p += sprintf(p, "FEP5+ Support = Yes\n");
else
p += sprintf(p, "FEP5+ Support = No\n");
p += sprintf(p, "Interrupt #: %ld. Times interrupted: %ld\n",
brd->irq, brd->intr_count);
p += sprintf(p, "Majors allocated to board = TTY: %d PR: %d\n",
brd->SerialDriver->major, brd->PrintDriver->major);
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
static int dgap_read_board_vpddata(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct board_t *brd;
static int done = 0;
static char buf[4096];
int i = 0, j = 0;
char *p = buf;
DPR_PROC(("dgap_proc_brd_info\n"));
brd = (struct board_t *) table->data;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
p += sprintf(p, "\n 0 1 2 3 4 5 6 7 8 9 A B C D E F\n");
/* Ending at 0xC0, because nothing but zeros exist after that offset */
for (i = 0; i < 0xC0; i++) {
j = i;
if (!(i % 16)) {
if (j > 0) {
p += sprintf(p, " ");
for (j = i - 16; j < i; j++) {
if (0x20 <= brd->vpd[j] && brd->vpd[j] <= 0x7e)
p += sprintf(p, "%c", brd->vpd[j]);
else
p += sprintf(p, ".");
}
p += sprintf(p, "\n");
}
p += sprintf(p, "%04X ", i);
}
p += sprintf(p, "%02X ", brd->vpd[i]);
}
if (!(i % 16)) {
p += sprintf(p, " ");
for (j = i - 16; j < i; j++) {
if (0x20 <= brd->vpd[j] && brd->vpd[j] <= 0x7e)
p += sprintf(p, "%c", brd->vpd[j]);
else
p += sprintf(p, ".");
}
p += sprintf(p, "\n");
}
p += sprintf(p, "\n");
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
static int dgap_read_board_vpd(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
long ptr;
u16 i, j;
uchar len;
DPR_PROC(("dgap_proc_brd_info\n"));
brd = (struct board_t *) table->data;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC) || !(brd->bd_flags & BD_HAS_VPD)) {
done = 0;
*lenp = 0;
return 0;
}
ptr = 0;
/* Description */
if (brd->vpd[ptr] == 0x82) {
ptr++;
p += sprintf(p, "*DS: ");
len = brd->vpd[ptr];
ptr += 2;
for (i = len; i; i--) {
uchar a;
a = brd->vpd[ptr];
ptr++;
p += sprintf(p, "%c", a);
}
p += sprintf(p, "\n");
}
/* VPD */
if (brd->vpd[ptr] == 0x90) {
ptr += 3;
i = brd->vpd[ptr];
while (i > 0) {
uchar a, b;
uchar str1[16];
a = brd->vpd[ptr];
ptr++;
b = brd->vpd[ptr];
ptr++;
if ((a == 'P') && (b == 'N')) {
strcpy (str1, "*PN");
}
else if ((a == 'E') && (b == 'C')) {
strcpy (str1, "*EC");
}
else if ((a == 'F') && (b == 'N')) {
strcpy (str1, "*FN");
}
else if ((a == 'M') && (b == 'N')) {
strcpy (str1, "*MF");
}
else if ((a == 'S') && (b == 'N')) {
strcpy (str1, "*SN");
}
else if ((a == 'R') && (b == 'L')) {
strcpy (str1, "*RL");
}
else if ((a == 'D') && (b == 'D')) {
strcpy (str1, "*DD");
}
else if ((a == 'D') && (b == 'G')) {
strcpy (str1, "*DG");
}
else if ((a == 'L') && (b == 'L')) {
strcpy (str1, "*LL");
}
else {
break;
}
len = brd->vpd[ptr];
ptr++;
p += sprintf(p, "%s: ", str1);
for (j = len; j; j--) {
uchar aa;
aa = brd->vpd[ptr];
ptr++;
p += sprintf(p, "%c", aa);
}
p += sprintf(p, "\n");
i -= (3 + len);
}
}
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return what is (hopefully) useful stats about the specific board's ttys
*/
static int dgap_read_board_ttystats(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
int i = 0;
DPR_PROC(("dgap_proc_brd_info\n"));
brd = (struct board_t *) table->data;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
/* Prepare the Header Labels */
p += sprintf(p, "%2s %10s %23s %10s\n",
"Ch", "Chars Rx", " Rx Par--Brk--Frm--Ovr", "Chars Tx");
for (i = 0; i < brd->nasync; i++) {
struct channel_t *ch = brd->channels[i];
p += sprintf(p, "%2d ", i);
p += sprintf(p, "%10ld ", ch->ch_rxcount);
p += sprintf(p, " %4ld %4ld %4ld %4ld ", ch->ch_err_parity,
ch->ch_err_break, ch->ch_err_frame, ch->ch_err_overrun);
p += sprintf(p, "%10ld ", ch->ch_txcount);
p += sprintf(p, "\n");
}
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return what is (hopefully) useful flags about the specific board's ttys
*/
static int dgap_read_board_ttyflags(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
int i = 0;
DPR_PROC(("dgap_proc_brd_info\n"));
brd = (struct board_t *) table->data;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
/* Prepare the Header Labels */
p += sprintf(p, "%2s %5s %5s %5s %5s %5s %10s Line Status Flags\n",
"Ch", "CFlag", "IFlag", "OFlag", "LFlag", "DFlag", "Baud");
for (i = 0; i < brd->nasync; i++) {
struct channel_t *ch = brd->channels[i];
p += sprintf(p, "%2d ", i);
p += sprintf(p, "%5x ", ch->ch_c_cflag);
p += sprintf(p, "%5x ", ch->ch_c_iflag);
p += sprintf(p, "%5x ", ch->ch_c_oflag);
p += sprintf(p, "%5x ", ch->ch_c_lflag);
p += sprintf(p, "%5x ", ch->ch_digi.digi_flags);
p += sprintf(p, "%10d ", ch->ch_baud_info);
if (!ch->ch_open_count) {
p += sprintf(p, " -- -- -- -- -- -- --") ;
} else {
p += sprintf(p, " op %s %s %s %s %s %s",
(ch->ch_mostat & UART_MCR_RTS) ? "rs" : "--",
(ch->ch_mistat & UART_MSR_CTS) ? "cs" : "--",
(ch->ch_mostat & UART_MCR_DTR) ? "tr" : "--",
(ch->ch_mistat & UART_MSR_DSR) ? "mr" : "--",
(ch->ch_mistat & UART_MSR_DCD) ? "cd" : "--",
(ch->ch_mistat & UART_MSR_RI) ? "ri" : "--");
}
p += sprintf(p, "\n");
}
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return mknod information for the board's devices.
*/
static int dgap_read_board_mknod(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
int bn;
struct cnode *cptr = NULL;
int found = FALSE;
int ncount = 0;
int starto = 0;
DPR_PROC(("dgap_proc_brd_info\n"));
brd = (struct board_t *) table->data;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
bn = brd->boardnum;
/*
* For each board, output the device information in
* a handy table format...
*/
p += sprintf(p, "# NAME\t\tMAJOR\tMINOR\tCOUNT\tSTART\n");
for (cptr = brd->bd_config; cptr; cptr = cptr->next) {
if ((cptr->type == BNODE) &&
((cptr->u.board.type == APORT2_920P) || (cptr->u.board.type == APORT4_920P) ||
(cptr->u.board.type == APORT8_920P) || (cptr->u.board.type == PAPORT4) ||
(cptr->u.board.type == PAPORT8))) {
found = TRUE;
if (cptr->u.board.v_start)
starto = cptr->u.board.start;
else
starto = 1;
}
if (cptr->type == TNODE && found == TRUE) {
char *ptr1;
if (strstr(cptr->u.ttyname, "tty")) {
ptr1 = cptr->u.ttyname;
ptr1 += 3;
}
else {
ptr1 = cptr->u.ttyname;
}
/* TTY devices */
p += sprintf(p, "tty%s\t\t%d\t%d\t%d\t%d\n",
ptr1, brd->SerialDriver->major,
0, dgap_config_get_number_of_ports(brd), starto);
/* PR devices */
p += sprintf(p, "pr%s\t\t%d\t%d\t%d\t%d\n",
ptr1, brd->PrintDriver->major,
0, dgap_config_get_number_of_ports(brd), starto);
}
if (cptr->type == CNODE) {
/* TTY devices */
p += sprintf(p, "tty%s\t\t%d\t%d\t%d\t%d\n",
cptr->u.conc.id, brd->SerialDriver->major,
ncount, cptr->u.conc.nport,
cptr->u.conc.v_start ? cptr->u.conc.start : 1);
/* PR devices */
p += sprintf(p, "pr%s\t\t%d\t%d\t%d\t%d\n",
cptr->u.conc.id, brd->PrintDriver->major,
ncount, cptr->u.conc.nport,
cptr->u.conc.v_start ? cptr->u.conc.start : 1);
ncount += cptr->u.conc.nport;
}
if (cptr->type == MNODE) {
/* TTY devices */
p += sprintf(p, "tty%s\t\t%d\t%d\t%d\t%d\n",
cptr->u.module.id, brd->SerialDriver->major,
ncount, cptr->u.module.nport,
cptr->u.module.v_start ? cptr->u.module.start : 1);
/* PR devices */
p += sprintf(p, "pr%s\t\t%d\t%d\t%d\t%d\n",
cptr->u.module.id, brd->PrintDriver->major,
ncount, cptr->u.module.nport,
cptr->u.module.v_start ? cptr->u.module.start : 1);
ncount += cptr->u.module.nport;
}
}
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return what is (hopefully) useful information about the specific channel.
*/
static int dgap_read_channel_info(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
static int done = 0;
static char buf[4096];
char *p = buf;
DPR_PROC(("dgap_proc_info\n"));
ch = (struct channel_t *) table->data;
if (done || !ch || (ch->magic != DGAP_CHANNEL_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
p += sprintf(p, "Port number:\t\t%d\n", ch->ch_portnum);
p += sprintf(p, "\n");
/* Prepare the Header Labels */
p += sprintf(p, "%10s %23s %10s\n",
"Chars Rx", " Rx Par--Brk--Frm--Ovr", "Chars Tx");
p += sprintf(p, "%10ld ", ch->ch_rxcount);
p += sprintf(p, " %4ld %4ld %4ld %4ld ", ch->ch_err_parity,
ch->ch_err_break, ch->ch_err_frame, ch->ch_err_overrun);
p += sprintf(p, "%10ld ", ch->ch_txcount);
p += sprintf(p, "\n\n");
/* Prepare the Header Labels */
p += sprintf(p, "%5s %5s %5s %5s %5s %10s Line Status Flags\n",
"CFlag", "IFlag", "OFlag", "LFlag", "DFlag", "Baud");
p += sprintf(p, "%5x ", ch->ch_c_cflag);
p += sprintf(p, "%5x ", ch->ch_c_iflag);
p += sprintf(p, "%5x ", ch->ch_c_oflag);
p += sprintf(p, "%5x ", ch->ch_c_lflag);
p += sprintf(p, "%5x ", ch->ch_digi.digi_flags);
p += sprintf(p, "%10d ", ch->ch_baud_info);
if (!ch->ch_open_count) {
p += sprintf(p, " -- -- -- -- -- -- --") ;
} else {
p += sprintf(p, " op %s %s %s %s %s %s",
(ch->ch_mostat & UART_MCR_RTS) ? "rs" : "--",
(ch->ch_mistat & UART_MSR_CTS) ? "cs" : "--",
(ch->ch_mostat & UART_MCR_DTR) ? "tr" : "--",
(ch->ch_mistat & UART_MSR_DSR) ? "mr" : "--",
(ch->ch_mistat & UART_MSR_DCD) ? "cd" : "--",
(ch->ch_mistat & UART_MSR_RI) ? "ri" : "--");
}
p += sprintf(p, "\n\n");
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return mknod information for the board's devices.
*/
static int dgap_read_channel_custom_ttyname(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
int cn;
int bn;
struct cnode *cptr = NULL;
int found = FALSE;
int ncount = 0;
int starto = 0;
int i = 0;
DPR_PROC(("dgap_proc_brd_info\n"));
ch = (struct channel_t *) table->data;
if (done || !ch || (ch->magic != DGAP_CHANNEL_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
brd = ch->ch_bd;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
bn = brd->boardnum;
cn = ch->ch_portnum;
/*
* For each board, output the device information in
* a handy table format...
*/
for (cptr = brd->bd_config; cptr; cptr = cptr->next) {
if ((cptr->type == BNODE) &&
((cptr->u.board.type == APORT2_920P) || (cptr->u.board.type == APORT4_920P) ||
(cptr->u.board.type == APORT8_920P) || (cptr->u.board.type == PAPORT4) ||
(cptr->u.board.type == PAPORT8))) {
found = TRUE;
if (cptr->u.board.v_start)
starto = cptr->u.board.start;
else
starto = 1;
}
if (cptr->type == TNODE && found == TRUE) {
char *ptr1;
if (strstr(cptr->u.ttyname, "tty")) {
ptr1 = cptr->u.ttyname;
ptr1 += 3;
}
else {
ptr1 = cptr->u.ttyname;
}
for (i = 0; i < dgap_config_get_number_of_ports(brd); i++) {
if (cn == i) {
p += sprintf(p, "tty%s%02d\n",
ptr1, i + starto);
}
}
}
if (cptr->type == CNODE) {
for (i = 0; i < cptr->u.conc.nport; i++) {
if (cn == (i + ncount)) {
p += sprintf(p, "tty%s%02d\n", cptr->u.conc.id,
i + (cptr->u.conc.v_start ? cptr->u.conc.start : 1));
}
}
ncount += cptr->u.conc.nport;
}
if (cptr->type == MNODE) {
for (i = 0; i < cptr->u.module.nport; i++) {
if (cn == (i + ncount)) {
p += sprintf(p, "tty%s%02d\n", cptr->u.module.id,
i + (cptr->u.module.v_start ? cptr->u.module.start : 1));
}
}
ncount += cptr->u.module.nport;
}
}
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Return mknod information for the board's devices.
*/
static int dgap_read_channel_custom_prname(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
struct board_t *brd;
static int done = 0;
static char buf[4096];
char *p = buf;
int cn;
int bn;
struct cnode *cptr = NULL;
int found = FALSE;
int ncount = 0;
int starto = 0;
int i = 0;
DPR_PROC(("dgap_proc_brd_info\n"));
ch = (struct channel_t *) table->data;
if (done || !ch || (ch->magic != DGAP_CHANNEL_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
brd = ch->ch_bd;
if (done || !brd || (brd->magic != DGAP_BOARD_MAGIC)) {
done = 0;
*lenp = 0;
return 0;
}
bn = brd->boardnum;
cn = ch->ch_portnum;
/*
* For each board, output the device information in
* a handy table format...
*/
for (cptr = brd->bd_config; cptr; cptr = cptr->next) {
if ((cptr->type == BNODE) &&
((cptr->u.board.type == APORT2_920P) || (cptr->u.board.type == APORT4_920P) ||
(cptr->u.board.type == APORT8_920P) || (cptr->u.board.type == PAPORT4) ||
(cptr->u.board.type == PAPORT8))) {
found = TRUE;
if (cptr->u.board.v_start)
starto = cptr->u.board.start;
else
starto = 1;
}
if (cptr->type == TNODE && found == TRUE) {
char *ptr1;
if (strstr(cptr->u.ttyname, "tty")) {
ptr1 = cptr->u.ttyname;
ptr1 += 3;
}
else {
ptr1 = cptr->u.ttyname;
}
for (i = 0; i < dgap_config_get_number_of_ports(brd); i++) {
if (cn == i) {
p += sprintf(p, "pr%s%02d\n",
ptr1, i + starto);
}
}
}
if (cptr->type == CNODE) {
for (i = 0; i < cptr->u.conc.nport; i++) {
if (cn == (i + ncount)) {
p += sprintf(p, "pr%s%02d\n", cptr->u.conc.id,
i + (cptr->u.conc.v_start ? cptr->u.conc.start : 1));
}
}
ncount += cptr->u.conc.nport;
}
if (cptr->type == MNODE) {
for (i = 0; i < cptr->u.module.nport; i++) {
if (cn == (i + ncount)) {
p += sprintf(p, "pr%s%02d\n", cptr->u.module.id,
i + (cptr->u.module.v_start ? cptr->u.module.start : 1));
}
}
ncount += cptr->u.module.nport;
}
}
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
static int dgap_open_channel_sniff(struct dgap_proc_entry *table, int dir, struct file *filp,
void *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
ulong lock_flags;
ch = (struct channel_t *) table->data;
if (!ch || (ch->magic != DGAP_CHANNEL_MAGIC))
return 0;
ch->ch_sniff_buf = dgap_driver_kzmalloc(SNIFF_MAX, GFP_KERNEL);
DGAP_LOCK(ch->ch_lock, lock_flags);
ch->ch_sniff_flags |= SNIFF_OPEN;
DGAP_UNLOCK(ch->ch_lock, lock_flags);
return 0;
}
static int dgap_close_channel_sniff(struct dgap_proc_entry *table, int dir, struct file *filp,
void *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
ulong lock_flags;
ch = (struct channel_t *) table->data;
if (!ch || (ch->magic != DGAP_CHANNEL_MAGIC))
return 0;
DGAP_LOCK(ch->ch_lock, lock_flags);
ch->ch_sniff_flags &= ~(SNIFF_OPEN);
kfree(ch->ch_sniff_buf);
DGAP_UNLOCK(ch->ch_lock, lock_flags);
return 0;
}
/*
* Copy data from the monitoring buffer to the user, freeing space
* in the monitoring buffer for more messages
*
*/
static int dgap_read_channel_sniff(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
int n;
int r;
int offset = 0;
int res = 0;
ssize_t rtn = 0;
ulong lock_flags;
ch = (struct channel_t *) table->data;
if (!ch || (ch->magic != DGAP_CHANNEL_MAGIC)) {
rtn = -ENXIO;
goto done;
}
/*
* Wait for some data to appear in the buffer.
*/
DGAP_LOCK(ch->ch_lock, lock_flags);
for (;;) {
n = (ch->ch_sniff_in - ch->ch_sniff_out) & SNIFF_MASK;
if (n != 0)
break;
ch->ch_sniff_flags |= SNIFF_WAIT_DATA;
DGAP_UNLOCK(ch->ch_lock, lock_flags);
/*
* Go to sleep waiting until the condition becomes true.
*/
rtn = wait_event_interruptible(ch->ch_sniff_wait,
((ch->ch_sniff_flags & SNIFF_WAIT_DATA) == 0));
if (rtn)
goto done;
DGAP_LOCK(ch->ch_lock, lock_flags);
}
/*
* Read whatever is there.
*/
if (n > *lenp)
n = *lenp;
res = n;
r = SNIFF_MAX - ch->ch_sniff_out;
if (r <= n) {
DGAP_UNLOCK(ch->ch_lock, lock_flags);
rtn = copy_to_user(buffer, ch->ch_sniff_buf + ch->ch_sniff_out, r);
if (rtn) {
rtn = -EFAULT;
goto done;
}
DGAP_LOCK(ch->ch_lock, lock_flags);
ch->ch_sniff_out = 0;
n -= r;
offset = r;
}
DGAP_UNLOCK(ch->ch_lock, lock_flags);
rtn = copy_to_user(buffer + offset, ch->ch_sniff_buf + ch->ch_sniff_out, n);
if (rtn) {
rtn = -EFAULT;
goto done;
}
DGAP_LOCK(ch->ch_lock, lock_flags);
ch->ch_sniff_out += n;
*ppos += res;
rtn = res;
// rtn = 0;
/*
* Wakeup any thread waiting for buffer space.
*/
if (ch->ch_sniff_flags & SNIFF_WAIT_SPACE) {
ch->ch_sniff_flags &= ~SNIFF_WAIT_SPACE;
wake_up_interruptible(&ch->ch_sniff_wait);
}
DGAP_UNLOCK(ch->ch_lock, lock_flags);
done:
return rtn;
}
static int dgap_read_channel_fepstate(struct dgap_proc_entry *table, int dir, struct file *filp,
char __user *buffer, ssize_t *lenp, loff_t *ppos)
{
struct channel_t *ch;
static int done = 0;
static char buf[4096];
char *p = buf;
DPR_PROC(("dgap_proc_info\n"));
ch = (struct channel_t *) table->data;
if (done || !ch || (ch->magic != DGAP_CHANNEL_MAGIC) || (ch->ch_bd->state != BOARD_READY)) {
done = 0;
*lenp = 0;
return 0;
}
p += sprintf(p, "Port number: %d\n", ch->ch_portnum);
p += sprintf(p, "\n");
p += sprintf(p, "\tTPJMP:\t%x\n", ch->ch_bs->tp_jmp);
p += sprintf(p, "\tTCJMP:\t%x\n", ch->ch_bs->tc_jmp);
p += sprintf(p, "\tTPJMP:\t%x\n", ch->ch_bs->ri_jmp);
p += sprintf(p, "\tRPJMP:\t%x\n", ch->ch_bs->rp_jmp);
p += sprintf(p, "\tTSEG:\t%x\n", ch->ch_bs->tx_seg);
p += sprintf(p, "\tTIN:\t%x\n", ch->ch_bs->tx_head);
p += sprintf(p, "\tTOUT:\t%x\n", ch->ch_bs->tx_tail);
p += sprintf(p, "\tTMAX:\t%x\n", ch->ch_bs->tx_max);
p += sprintf(p, "\tRSEG:\t%x\n", ch->ch_bs->rx_seg);
p += sprintf(p, "\tRIN:\t%x\n", ch->ch_bs->rx_head);
p += sprintf(p, "\tROUT:\t%x\n", ch->ch_bs->rx_tail);
p += sprintf(p, "\tRMAX:\t%x\n", ch->ch_bs->rx_max);
p += sprintf(p, "\tTLOW:\t%x\n", ch->ch_bs->tx_lw);
p += sprintf(p, "\tRLOW:\t%x\n", ch->ch_bs->rx_lw);
p += sprintf(p, "\tRHIGH:\t%x\n", ch->ch_bs->rx_hw);
p += sprintf(p, "\tINCR:\t%x\n", ch->ch_bs->incr);
p += sprintf(p, "\tDEV:\t%x\n", ch->ch_bs->fepdev);
p += sprintf(p, "\tEDELAY:\t%x\n", ch->ch_bs->edelay);
p += sprintf(p, "\tBLEN:\t%x\n", ch->ch_bs->blen);
p += sprintf(p, "\tBTIME:\t%x\n", ch->ch_bs->btime);
p += sprintf(p, "\tIFLAG:\t%x\n", ch->ch_bs->iflag);
p += sprintf(p, "\tOFLAG:\t%x\n", ch->ch_bs->oflag);
p += sprintf(p, "\tCFLAG:\t%x\n", ch->ch_bs->cflag);
p += sprintf(p, "\tNUM:\t%x\n", ch->ch_bs->num);
p += sprintf(p, "\tRACT:\t%x\n", ch->ch_bs->ract);
p += sprintf(p, "\tBSTAT:\t%x\n", ch->ch_bs->bstat);
p += sprintf(p, "\tTBUSY:\t%x\n", ch->ch_bs->tbusy);
p += sprintf(p, "\tIEMPTY:\t%x\n", ch->ch_bs->iempty);
p += sprintf(p, "\tILOW:\t%x\n", ch->ch_bs->ilow);
p += sprintf(p, "\tIDATA:\t%x\n", ch->ch_bs->idata);
p += sprintf(p, "\tEFLAG:\t%x\n", ch->ch_bs->eflag);
p += sprintf(p, "\tTFLAG:\t%x\n", ch->ch_bs->tflag);
p += sprintf(p, "\tRFLAG:\t%x\n", ch->ch_bs->rflag);
p += sprintf(p, "\tXMASK:\t%x\n", ch->ch_bs->xmask);
p += sprintf(p, "\tXVAL:\t%x\n", ch->ch_bs->xval);
p += sprintf(p, "\tMSTAT:\t%x\n", ch->ch_bs->m_stat);
p += sprintf(p, "\tEFMASK:\t%x\n", ch->ch_bs->m_change);
p += sprintf(p, "\tMINT:\t%x\n", ch->ch_bs->m_int);
p += sprintf(p, "\tLSTAT:\t%x\n", ch->ch_bs->m_last);
p += sprintf(p, "\tMTRAN:\t%x\n", ch->ch_bs->mtran);
p += sprintf(p, "\tORUN:\t%x\n", ch->ch_bs->orun);
p += sprintf(p, "\tSTARTCA:%x\n", ch->ch_bs->astartc);
p += sprintf(p, "\tSTOPCA:\t%x\n", ch->ch_bs->astopc);
p += sprintf(p, "\tSTARTC\t%x\n", ch->ch_bs->startc);
p += sprintf(p, "\tSTOPC:\t%x\n", ch->ch_bs->stopc);
p += sprintf(p, "\tVNEXT:\t%x\n", ch->ch_bs->vnextc);
p += sprintf(p, "\tHFLOW:\t%x\n", ch->ch_bs->hflow);
p += sprintf(p, "\tFILLC:\t%x\n", ch->ch_bs->fillc);
p += sprintf(p, "\tOCHAR:\t%x\n", ch->ch_bs->ochar);
p += sprintf(p, "\tOMASK:\t%x\n", ch->ch_bs->omask);
if (copy_to_user(buffer, buf, (p - (char *) buf)))
return -EFAULT;
*lenp = p - (char *) buf;
*ppos += p - (char *) buf;
done = 1;
return 0;
}
/*
* Register the basic /proc/dgap files that appear whenever
* the driver is loaded.
*/
void dgap_proc_register_basic_prescan(void)
{
int i;
/* Initialize semaphores in each table slot */
for (i = 0; i < DGAP_MAX_PROC_ENTRIES; i++) {
if (!dgap_table[i].magic) {
break;
}
init_MUTEX(&(dgap_table[i].excl_sem));
}
/*
* Register /proc/dgap
*/
ProcDGAP = proc_create("dgap", (0700 | S_IFDIR), NULL, &dgap_proc_file_ops);
dgap_register_proc_table(dgap_table, ProcDGAP);
}
/*
* Register the basic /proc/dgap files that appear whenever
* the driver is loaded.
*/
void dgap_proc_register_basic_postscan(int board_num)
{
int i;
char board[10];
sprintf(board, "%d", board_num);
/* Set proc board entry pointer */
dgap_Board[board_num]->proc_entry_pointer = create_proc_entry(board, (0700 | S_IFDIR), ProcDGAP);
/* Create a new copy of the board_table... */
dgap_Board[board_num]->dgap_board_table = dgap_driver_kzmalloc(sizeof(dgap_board_table),
GFP_KERNEL);
/* Now copy the default table into that memory */
memcpy(dgap_Board[board_num]->dgap_board_table, dgap_board_table, sizeof(dgap_board_table));
/* Initialize semaphores in each table slot */
for (i = 0; i < DGAP_MAX_PROC_ENTRIES; i++) {
if (!dgap_Board[board_num]->dgap_board_table[i].magic) {
break;
}
init_MUTEX(&(dgap_Board[board_num]->dgap_board_table[i].excl_sem));
dgap_Board[board_num]->dgap_board_table[i].data = dgap_Board[board_num];
}
/* Register board table into proc */
dgap_register_proc_table(dgap_Board[board_num]->dgap_board_table,
dgap_Board[board_num]->proc_entry_pointer);
}
/*
* Register the channel /proc/dgap files that appear whenever
* the driver is loaded.
*/
void dgap_proc_register_channel_postscan(int board_num)
{
int i, j;
/*
* Add new entries for each port.
*/
for (i = 0; i < dgap_Board[board_num]->nasync; i++) {
char channel[10];
sprintf(channel, "%d", i);
/* Set proc channel entry pointer */
dgap_Board[board_num]->channels[i]->proc_entry_pointer =
create_proc_entry(channel, (0700 | S_IFDIR),
dgap_Board[board_num]->proc_entry_pointer);
/* Create a new copy of the channel_table... */
dgap_Board[board_num]->channels[i]->dgap_channel_table =
dgap_driver_kzmalloc(sizeof(dgap_channel_table), GFP_KERNEL);
/* Now copy the default table into that memory */
memcpy(dgap_Board[board_num]->channels[i]->dgap_channel_table,
dgap_channel_table, sizeof(dgap_channel_table));
/* Initialize semaphores in each table slot */
for (j = 0; j < DGAP_MAX_PROC_ENTRIES; j++) {
if (!dgap_Board[board_num]->channels[i]->dgap_channel_table[j].magic) {
break;
}
init_MUTEX(&(dgap_Board[board_num]->channels[i]->dgap_channel_table[j].excl_sem));
dgap_Board[board_num]->channels[i]->dgap_channel_table[j].data =
dgap_Board[board_num]->channels[i];
}
/* Register channel table into proc */
dgap_register_proc_table(dgap_Board[board_num]->channels[i]->dgap_channel_table,
dgap_Board[board_num]->channels[i]->proc_entry_pointer);
}
}
static void dgap_remove_proc_entry(struct proc_dir_entry *pde)
{
if (!pde) {
DPR_PROC(("dgap_remove_proc_entry... NULL entry... not removing...\n"));
return;
}
remove_proc_entry(pde->name, pde->parent);
}
void dgap_proc_unregister_all(void)
{
int i = 0, j = 0;
/* Walk each board, blowing away their proc entries... */
for (i = 0; i < dgap_NumBoards; i++) {
/* Walk each channel, blowing away their proc entries... */
for (j = 0; j < dgap_Board[i]->nasync; j++) {
if (dgap_Board[i]->channels[j]->dgap_channel_table) {
dgap_unregister_proc_table(dgap_Board[i]->channels[j]->dgap_channel_table,
dgap_Board[i]->channels[j]->proc_entry_pointer);
dgap_remove_proc_entry(dgap_Board[i]->channels[j]->proc_entry_pointer);
kfree(dgap_Board[i]->channels[j]->dgap_channel_table);
}
}
if (dgap_Board[i]->dgap_board_table) {
dgap_unregister_proc_table(dgap_Board[i]->dgap_board_table,
dgap_Board[i]->proc_entry_pointer);
dgap_remove_proc_entry(dgap_Board[i]->proc_entry_pointer);
kfree(dgap_Board[i]->dgap_board_table);
}
}
/* Blow away the top proc entry */
dgap_unregister_proc_table(dgap_table, ProcDGAP);
dgap_remove_proc_entry(ProcDGAP);
}
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