+++ /dev/null
-/*
- * 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: dgnc_proc.c,v 1.3 2011/06/22 12:16:35 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/string.h>
-#include <asm/uaccess.h> /* For copy_from_user/copy_to_user */
-
-#include "dgnc_driver.h"
-#include "dgnc_proc.h"
-#include "dgnc_mgmt.h"
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
-#define init_MUTEX(sem) sema_init(sem, 1)
-#define DECLARE_MUTEX(name) \
- struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
-#endif
-
-
-/* The /proc/dgnc directory */
-static struct proc_dir_entry *ProcDGNC;
-
-
-/* File operation declarations */
-static int dgnc_gen_proc_open(struct inode *, struct file *);
-static int dgnc_gen_proc_close(struct inode *, struct file *);
-static ssize_t dgnc_gen_proc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos);
-static ssize_t dgnc_gen_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
-
-static int dgnc_proc_chk_perm(struct inode *, int);
-
-static const struct file_operations dgnc_proc_file_ops =
-{
- .owner = THIS_MODULE,
- .read = dgnc_gen_proc_read, /* read */
- .write = dgnc_gen_proc_write, /* write */
- .open = dgnc_gen_proc_open, /* open */
- .release = dgnc_gen_proc_close, /* release */
-};
-
-
-static struct inode_operations dgnc_proc_inode_ops =
-{
- .permission = dgnc_proc_chk_perm
-};
-
-
-static void dgnc_register_proc_table(struct dgnc_proc_entry *, struct proc_dir_entry *);
-static void dgnc_unregister_proc_table(struct dgnc_proc_entry *, struct proc_dir_entry *);
-static void dgnc_remove_proc_entry(struct proc_dir_entry *pde);
-
-
-/* Stuff in /proc/ */
-static int dgnc_read_info(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_write_info(struct dgnc_proc_entry *table, int dir, struct file *filp,
- const char __user *buffer, ssize_t *lenp, loff_t *ppos);
-
-static int dgnc_read_mknod(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-
-static struct dgnc_proc_entry dgnc_table[] = {
- {DGNC_INFO, "info", 0600, NULL, NULL, NULL, &dgnc_read_info, &dgnc_write_info,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_table[0].excl_sem, 1), 0, NULL },
- {DGNC_MKNOD, "mknod", 0600, NULL, NULL, NULL, &dgnc_read_mknod, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_table[1].excl_sem, 1), 0, NULL },
- {0}
-};
-
-
-/* Stuff in /proc/<board>/ */
-static int dgnc_read_board_info(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_board_vpd(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_board_mknod(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_board_ttystats(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_board_ttyintr(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_board_ttyflags(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-
-static struct dgnc_proc_entry dgnc_board_table[] = {
- {DGNC_BOARD_INFO, "info", 0600, NULL, NULL, NULL, &dgnc_read_board_info, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_board_table[0].excl_sem, 1), 0, NULL },
- {DGNC_BOARD_VPD, "vpd", 0600, NULL, NULL, NULL, &dgnc_read_board_vpd, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_board_table[1].excl_sem, 1), 0, NULL },
- {DGNC_BOARD_TTYSTATS, "stats", 0600, NULL, NULL, NULL, &dgnc_read_board_ttystats, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_board_table[2].excl_sem, 1), 0, NULL },
- {DGNC_BOARD_TTYINTR, "intr", 0600, NULL, NULL, NULL, &dgnc_read_board_ttyintr, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_board_table[3].excl_sem, 1), 0, NULL },
- {DGNC_BOARD_TTYFLAGS, "flags", 0600, NULL, NULL, NULL, &dgnc_read_board_ttyflags, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_board_table[4].excl_sem, 1), 0, NULL },
- {DGNC_BOARD_MKNOD, "mknod", 0600, NULL, NULL, NULL, &dgnc_read_board_mknod, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_board_table[5].excl_sem, 1), 0, NULL },
- {0}
-};
-
-
-/* Stuff in /proc/<board>/<channel> */
-static int dgnc_read_channel_info(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_open_channel_sniff(struct dgnc_proc_entry *table, int dir, struct file *filp,
- void *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_close_channel_sniff(struct dgnc_proc_entry *table, int dir, struct file *filp,
- void *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_channel_sniff(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_channel_custom_ttyname(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-static int dgnc_read_channel_custom_prname(struct dgnc_proc_entry *table, int dir, struct file *filp,
- char __user *buffer, ssize_t *lenp, loff_t *ppos);
-
-static struct dgnc_proc_entry dgnc_channel_table[] = {
- {DGNC_PORT_INFO, "info", 0600, NULL, NULL, NULL, &dgnc_read_channel_info, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_channel_table[0].excl_sem, 1), 0, NULL },
- {DGNC_PORT_SNIFF, "sniff", 0600, NULL, &dgnc_open_channel_sniff, &dgnc_close_channel_sniff, &dgnc_read_channel_sniff, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_channel_table[1].excl_sem, 1), 0, NULL},
- {DGNC_PORT_CUSTOM_TTYNAME, "ttyname", 0600, NULL, NULL, NULL, &dgnc_read_channel_custom_ttyname, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_channel_table[2].excl_sem, 1), 0, NULL },
- {DGNC_PORT_CUSTOM_PRNAME, "prname", 0600, NULL, NULL, NULL, &dgnc_read_channel_custom_prname, NULL,
- NULL, __SEMAPHORE_INITIALIZER(dgnc_channel_table[3].excl_sem, 1), 0, NULL },
- {0}
-};
-
-
-/*
- * dgnc_test_perm does NOT grant the superuser all rights automatically, because
- * some entries are readonly even to root.
- */
-static inline int dgnc_test_perm(int mode, int op)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
- if (!current->euid)
-#else
- if (!current_euid())
-#endif
- 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 dgnc_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 dgnc_register_proc_table(struct dgnc_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(("dgnc_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 "DGNC 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 (dgnc_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 = &dgnc_proc_inode_ops;
- de->proc_fops = &dgnc_proc_file_ops;
- }
- }
-
- table->de = de;
-
- if (de->mode & S_IFDIR)
- dgnc_register_proc_table(table->child, de);
-
- }
-}
-
-
-
-/*
- * Unregister a /proc sysctl table and any subdirectories.
- */
-static void dgnc_unregister_proc_table(struct dgnc_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"));
- dgnc_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;
- }
-
- dgnc_remove_proc_entry(de);
- table->de = NULL;
- }
-}
-
-
-
-static int dgnc_gen_proc_open(struct inode *inode, struct file *file)
-{
- struct proc_dir_entry *de;
- struct dgnc_proc_entry *entry;
- int (*handler) (struct dgnc_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 dgnc_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 dgnc_gen_proc_close(struct inode *inode, struct file *file)
-{
- struct proc_dir_entry *de;
- int (*handler) (struct dgnc_proc_entry *table, int dir, struct file *filp,
- void *buffer, ssize_t *lenp, loff_t *ppos);
- struct dgnc_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 dgnc_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 dgnc_gen_proc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
-{
- struct proc_dir_entry *de;
- struct dgnc_proc_entry *entry;
- int (*handler) (struct dgnc_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 dgnc_proc_entry *) de->data;
- if (!entry)
- return -ENXIO;
-
- /* Test for read permission */
- if (dgnc_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 dgnc_gen_proc_write(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct proc_dir_entry *de;
- struct dgnc_proc_entry *entry;
- int (*handler) (struct dgnc_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 dgnc_proc_entry *) de->data;
- if (!entry)
- return -ENXIO;
-
- /* Test for write permission */
- if (dgnc_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 dgnc_proc_chk_perm(struct inode *inode, int op)
-{
- return dgnc_test_perm(inode->i_mode, op);
-}
-
-
-/*
- * Return what is (hopefully) useful information about the
- * driver.
- */
-static int dgnc_read_info(struct dgnc_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(("dgnc_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", dgnc_debug);
- p += sprintf(p, "Sysfs Support:\t0x1\n");
- p += sprintf(p, "Rawreadok:\t0x%x\n", dgnc_rawreadok);
- p += sprintf(p, "Max Boards:\t%d\n", MAXBOARDS);
- p += sprintf(p, "Total Boards:\t%d\n", dgnc_NumBoards);
- p += sprintf(p, "Poll rate:\t%dms\n", dgnc_poll_tick);
- p += sprintf(p, "Poll counter:\t%ld\n", dgnc_poll_counter);
- p += sprintf(p, "State:\t\t%s\n", dgnc_driver_state_text[dgnc_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;
-} dgnc_info_vars[] = {
- { "rawreadok", INFO_INT, 1, (void *) &dgnc_rawreadok },
- { "pollrate", INFO_INT, 1, (void *) &dgnc_poll_tick },
- { NULL, INFO_NONE, 0, NULL },
- { "debug", INFO_LONG, 1, (void *) &dgnc_debug },
- { NULL, INFO_END, 0, NULL }
-};
-
-static void dgnc_set_info_var(char *name, char *val)
-{
- int i;
- unsigned long newval;
- unsigned char charval;
- unsigned short shortval;
- unsigned int intval;
-
- for (i = 0; dgnc_info_vars[i].type != INFO_END; i++) {
- if (dgnc_info_vars[i].name)
- if (!strcmp(name, dgnc_info_vars[i].name))
- break;
- }
-
- if (dgnc_info_vars[i].type == INFO_END)
- return;
- if (dgnc_info_vars[i].rw == 0)
- return;
- if (dgnc_info_vars[i].val_ptr == NULL)
- return;
-
- newval = simple_strtoul(val, NULL, 0 );
-
- switch (dgnc_info_vars[i].type) {
- case INFO_CHAR:
- charval = newval & 0xff;
- APR(("Modifying %s (%lx) <= 0x%02x (%d)\n",
- name, (long)(dgnc_info_vars[i].val_ptr ),
- charval, charval));
- *(uchar *)(dgnc_info_vars[i].val_ptr) = charval;
- break;
- case INFO_SHORT:
- shortval = newval & 0xffff;
- APR(("Modifying %s (%lx) <= 0x%04x (%d)\n",
- name, (long)(dgnc_info_vars[i].val_ptr),
- shortval, shortval));
- *(ushort *)(dgnc_info_vars[i].val_ptr) = shortval;
- break;
- case INFO_INT:
- intval = newval & 0xffffffff;
- APR(("Modifying %s (%lx) <= 0x%08x (%d)\n",
- name, (long)(dgnc_info_vars[i].val_ptr),
- intval, intval));
- *(uint *)(dgnc_info_vars[i].val_ptr) = intval;
- break;
- case INFO_LONG:
- APR(("Modifying %s (%lx) <= 0x%lx (%ld)\n",
- name, (long)(dgnc_info_vars[i].val_ptr),
- newval, newval));
- *(ulong *)(dgnc_info_vars[i].val_ptr) = newval;
- break;
- case INFO_PTR:
- case INFO_STRING:
- case INFO_END:
- case INFO_NONE:
- default:
- break;
- }
-}
-
-static int dgnc_write_info(struct dgnc_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;
- dgnc_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;
- dgnc_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 dgnc_read_mknod(struct dgnc_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;
- int i = 0;
-
- DPR_PROC(("dgnc_proc_info\n"));
-
- if (done) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- DPR_PROC(("dgnc_proc_mknod\n"));
-
- p += sprintf(p, "#\tCreate the management devices.\n");
-
- for (i = 0; i < MAXMGMTDEVICES; i++) {
- char tmp[100];
- sprintf(tmp, "/dev/dg/dgnc/mgmt%d", i);
- p += sprintf(p, "%s\t%d\t%d\t%d\n",
- tmp, dgnc_Major, i, 1);
- }
-
- 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 dgnc_read_board_info(struct dgnc_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(("dgnc_proc_brd_info\n"));
-
- brd = (struct board_t *) table->data;
-
- if (done || !brd || (brd->magic != DGNC_BOARD_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- name = brd->name;
-
- p += sprintf(p, "Board Name = %s\n", name);
- if (brd->serial_num[0] == '\0')
- p += sprintf(p, "Serial number = <UNKNOWN>\n");
- else
- p += sprintf(p, "Serial number = %s\n", brd->serial_num);
-
- 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", dgnc_state_text[brd->state]);
- p += sprintf(p, "Interrupt #: %d. Times interrupted: %ld\n",
- brd->irq, brd->intr_count);
-
- p += sprintf(p, "TX interrupts: %ld RX interrupts: %ld\n",
- brd->intr_tx, brd->intr_rx);
- p += sprintf(p, "Modem interrupts: %ld\n", brd->intr_modem);
-
- 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 dgnc_read_board_vpd(struct dgnc_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(("dgnc_proc_brd_info\n"));
-
- brd = (struct board_t *) table->data;
-
- if (done || !brd || (brd->magic != DGNC_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 ASCII\n");
-
- for (i = 0; i < 0x40 * 2; 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;
-}
-
-
-/*
- * Return what is (hopefully) useful stats about the specific board's ttys
- */
-static int dgnc_read_board_ttystats(struct dgnc_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(("dgnc_proc_brd_info\n"));
-
- brd = (struct board_t *) table->data;
-
- if (done || !brd || (brd->magic != DGNC_BOARD_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- /* Prepare the Header Labels */
- p += sprintf(p, "%2s %10s %23s %10s %9s\n",
- "Ch", "Chars Rx", " Rx Par--Brk--Frm--Ovr",
- "Chars Tx", "XON XOFF");
-
- 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, "%4ld %4ld ", ch->ch_xon_sends, ch->ch_xoff_sends);
-
- 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 stats about the specific board's tty intrs
- */
-static int dgnc_read_board_ttyintr(struct dgnc_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(("dgnc_proc_brd_info\n"));
-
- brd = (struct board_t *) table->data;
-
- if (done || !brd || (brd->magic != DGNC_BOARD_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- /* Prepare the Header Labels */
- p += sprintf(p, "%2s %14s %14s %14s\n",
- "Ch", "TX interrupts", "RX interrupts", "Modem interrupts");
-
- for (i = 0; i < brd->nasync; i++) {
-
- struct channel_t *ch = brd->channels[i];
-
- p += sprintf(p, "%2d ", i);
-
- p += sprintf(p, " %14ld %14ld %14ld",
- ch->ch_intr_tx, ch->ch_intr_rx, ch->ch_intr_modem);
-
- 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 dgnc_read_board_ttyflags(struct dgnc_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(("dgnc_proc_brd_info\n"));
-
- brd = (struct board_t *) table->data;
-
- if (done || !brd || (brd->magic != DGNC_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_old_baud);
-
- 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 dgnc_read_board_mknod(struct dgnc_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 str[MAXTTYNAMELEN];
- char *p = buf;
-
- DPR_PROC(("dgnc_proc_brd_info\n"));
-
- brd = (struct board_t *) table->data;
-
- if (done || !brd || (brd->magic != DGNC_BOARD_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- /*
- * For each board, output the device information in
- * a handy table format...
- */
- p += sprintf(p, "# Create the TTY and PR devices\n");
-
- /* TTY devices */
- sprintf(str, "ttyn%d%%p", brd->boardnum + 1);
- p += sprintf(p, "%s\t\t\t%d\t%d\t%d\n", str,
- brd->dgnc_Serial_Major, 0, brd->maxports);
-
- /* PR devices */
- sprintf(str, "prn%d%%p", brd->boardnum + 1);
- p += sprintf(p, "%s\t\t\t%d\t%d\t%d\n", str,
- brd->dgnc_TransparentPrint_Major, 128, brd->maxports);
-
- 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 dgnc_read_channel_info(struct dgnc_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(("dgnc_proc_info\n"));
-
- ch = (struct channel_t *) table->data;
-
- if (done || !ch || (ch->magic != DGNC_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 %9s\n",
- "Chars Rx", " Rx Par--Brk--Frm--Ovr",
- "Chars Tx", "XON XOFF");
- 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, "%4ld %4ld ", ch->ch_xon_sends, ch->ch_xoff_sends);
- 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_old_baud);
- 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 dgnc_read_channel_custom_ttyname(struct dgnc_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;
-
- DPR_PROC(("dgnc_proc_brd_info\n"));
-
- ch = (struct channel_t *) table->data;
-
- if (done || !ch || (ch->magic != DGNC_CHANNEL_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- brd = ch->ch_bd;
-
- if (done || !brd || (brd->magic != DGNC_BOARD_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- bn = brd->boardnum;
- cn = ch->ch_portnum;
-
- p += sprintf(p, "ttyn%d%c\n", bn + 1, 'a' + cn);
-
- 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 dgnc_read_channel_custom_prname(struct dgnc_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;
-
- DPR_PROC(("dgnc_proc_brd_info\n"));
-
- ch = (struct channel_t *) table->data;
-
- if (done || !ch || (ch->magic != DGNC_CHANNEL_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- brd = ch->ch_bd;
-
- if (done || !brd || (brd->magic != DGNC_BOARD_MAGIC)) {
- done = 0;
- *lenp = 0;
- return 0;
- }
-
- bn = brd->boardnum;
- cn = ch->ch_portnum;
-
- p += sprintf(p, "prn%d%c\n", bn + 1, 'a' + cn);
-
- 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 dgnc_open_channel_sniff(struct dgnc_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 != DGNC_CHANNEL_MAGIC))
- return 0;
-
- ch->ch_sniff_buf = dgnc_driver_kzmalloc(SNIFF_MAX, GFP_KERNEL);
-
- DGNC_LOCK(ch->ch_lock, lock_flags);
- ch->ch_sniff_flags |= SNIFF_OPEN;
- DGNC_UNLOCK(ch->ch_lock, lock_flags);
-
- return 0;
-}
-
-static int dgnc_close_channel_sniff(struct dgnc_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 != DGNC_CHANNEL_MAGIC))
- return 0;
-
- DGNC_LOCK(ch->ch_lock, lock_flags);
- ch->ch_sniff_flags &= ~(SNIFF_OPEN);
- kfree(ch->ch_sniff_buf);
- DGNC_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 dgnc_read_channel_sniff(struct dgnc_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 != DGNC_CHANNEL_MAGIC)) {
- rtn = -ENXIO;
- goto done;
- }
-
- /*
- * Wait for some data to appear in the buffer.
- */
- DGNC_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;
-
- DGNC_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;
-
- DGNC_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) {
- DGNC_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;
- }
-
- DGNC_LOCK(ch->ch_lock, lock_flags);
-
- ch->ch_sniff_out = 0;
- n -= r;
- offset = r;
- }
-
- DGNC_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;
- }
- DGNC_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);
- }
-
- DGNC_UNLOCK(ch->ch_lock, lock_flags);
-
-done:
- return rtn;
-}
-
-
-/*
- * Register the basic /proc/dgnc files that appear whenever
- * the driver is loaded.
- */
-void dgnc_proc_register_basic_prescan(void)
-{
- /*
- * Register /proc/dgnc
- */
- ProcDGNC = proc_create("dgnc", (0700 | S_IFDIR), NULL, &dgnc_proc_file_ops);
- dgnc_register_proc_table(dgnc_table, ProcDGNC);
-}
-
-
-/*
- * Register the basic /proc/dgnc files that appear whenever
- * the driver is loaded.
- */
-void dgnc_proc_register_basic_postscan(int board_num)
-{
- int i, j;
- char board[10];
- sprintf(board, "%d", board_num);
-
- /* Set proc board entry pointer */
- dgnc_Board[board_num]->proc_entry_pointer = create_proc_entry(board, (0700 | S_IFDIR), ProcDGNC);
-
- /* Create a new copy of the board_table... */
- dgnc_Board[board_num]->dgnc_board_table = dgnc_driver_kzmalloc(sizeof(dgnc_board_table),
- GFP_KERNEL);
-
- /* Now copy the default table into that memory */
- memcpy(dgnc_Board[board_num]->dgnc_board_table, dgnc_board_table, sizeof(dgnc_board_table));
-
- /* Initialize semaphores in each table slot */
- for (i = 0; i < 999; i++) {
- if (!dgnc_Board[board_num]->dgnc_board_table[i].magic) {
- break;
- }
-
- init_MUTEX(&(dgnc_Board[board_num]->dgnc_board_table[i].excl_sem));
- dgnc_Board[board_num]->dgnc_board_table[i].data = dgnc_Board[board_num];
-
- }
-
- /* Register board table into proc */
- dgnc_register_proc_table(dgnc_Board[board_num]->dgnc_board_table,
- dgnc_Board[board_num]->proc_entry_pointer);
-
- /*
- * Add new entries for each port.
- */
- for (i = 0; i < dgnc_Board[board_num]->nasync; i++) {
-
- char channel[10];
- sprintf(channel, "%d", i);
-
- /* Set proc channel entry pointer */
- dgnc_Board[board_num]->channels[i]->proc_entry_pointer =
- create_proc_entry(channel, (0700 | S_IFDIR),
- dgnc_Board[board_num]->proc_entry_pointer);
-
- /* Create a new copy of the channel_table... */
- dgnc_Board[board_num]->channels[i]->dgnc_channel_table =
- dgnc_driver_kzmalloc(sizeof(dgnc_channel_table), GFP_KERNEL);
-
- /* Now copy the default table into that memory */
- memcpy(dgnc_Board[board_num]->channels[i]->dgnc_channel_table,
- dgnc_channel_table, sizeof(dgnc_channel_table));
-
- /* Initialize semaphores in each table slot */
- for (j = 0; j < 999; j++) {
- if (!dgnc_Board[board_num]->channels[i]->dgnc_channel_table[j].magic) {
- break;
- }
-
- init_MUTEX(&(dgnc_Board[board_num]->channels[i]->dgnc_channel_table[j].excl_sem));
- dgnc_Board[board_num]->channels[i]->dgnc_channel_table[j].data =
- dgnc_Board[board_num]->channels[i];
- }
-
- /* Register channel table into proc */
- dgnc_register_proc_table(dgnc_Board[board_num]->channels[i]->dgnc_channel_table,
- dgnc_Board[board_num]->channels[i]->proc_entry_pointer);
- }
-}
-
-
-static void dgnc_remove_proc_entry(struct proc_dir_entry *pde)
-{
- if (!pde) {
- DPR_PROC(("dgnc_remove_proc_entry... NULL entry... not removing...\n"));
- return;
- }
-
- remove_proc_entry(pde->name, pde->parent);
-}
-
-
-void dgnc_proc_unregister_all(void)
-{
- int i = 0, j = 0;
-
- /* Walk each board, blowing away their proc entries... */
- for (i = 0; i < dgnc_NumBoards; i++) {
-
- /* Walk each channel, blowing away their proc entries... */
- for (j = 0; j < dgnc_Board[i]->nasync; j++) {
-
- dgnc_unregister_proc_table(dgnc_Board[i]->channels[j]->dgnc_channel_table,
- dgnc_Board[i]->channels[j]->proc_entry_pointer);
- dgnc_remove_proc_entry(dgnc_Board[i]->channels[j]->proc_entry_pointer);
- kfree(dgnc_Board[i]->channels[j]->dgnc_channel_table);
- }
-
- dgnc_unregister_proc_table(dgnc_Board[i]->dgnc_board_table,
- dgnc_Board[i]->proc_entry_pointer);
- dgnc_remove_proc_entry(dgnc_Board[i]->proc_entry_pointer);
- kfree(dgnc_Board[i]->dgnc_board_table);
- }
-
- /* Blow away the top proc entry */
- dgnc_unregister_proc_table(dgnc_table, ProcDGNC);
- dgnc_remove_proc_entry(ProcDGNC);
-}
projects / linux-beck.git / commitdiff