1 files changed, 0 insertions, 541 deletions

diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
deleted file mode 100644
index 205d80e..0000000
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ /dev/null
@@ -1,541 +0,0 @@
-/*
- *
- * Copyright 1999 Digi International (www.digi.com)
- *     James Puzzo  <jamesp 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.
- *
- */
-
-/*
- *
- *  Filename:
- *
- *     dgrp_specproc.c
- *
- *  Description:
- *
- *     Handle the "config" proc entry for the linux realport device driver
- *     and provide slots for the "net" and "mon" devices
- *
- *  Author:
- *
- *     James A. Puzzo
- *
- */
-
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/sched.h>
-#include <linux/cred.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/ctype.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-
-#include "dgrp_common.h"
-
-static struct proc_dir_entry *dgrp_proc_dir_entry;
-
-static int dgrp_add_id(long id);
-static int dgrp_remove_nd(struct nd_struct *nd);
-static struct proc_dir_entry *add_proc_file(struct nd_struct *node,
-				 struct proc_dir_entry *root,
-				 const struct file_operations *fops);
-
-/* File operation declarations */
-static int parse_write_config(char *);
-
-static ssize_t dgrp_config_proc_write(struct file *file,
-				      const char __user *buffer,
-				      size_t count, loff_t *pos);
-
-static int dgrp_nodeinfo_proc_open(struct inode *inode, struct file *file);
-static int dgrp_info_proc_open(struct inode *inode, struct file *file);
-static int dgrp_config_proc_open(struct inode *inode, struct file *file);
-
-static const struct file_operations config_proc_file_ops = {
-	.owner	 = THIS_MODULE,
-	.open	 = dgrp_config_proc_open,
-	.read	 = seq_read,
-	.llseek	 = seq_lseek,
-	.release = seq_release,
-	.write   = dgrp_config_proc_write,
-};
-
-static const struct file_operations info_proc_file_ops = {
-	.owner	 = THIS_MODULE,
-	.open	 = dgrp_info_proc_open,
-	.read	 = seq_read,
-	.llseek	 = seq_lseek,
-	.release = single_release,
-};
-
-static const struct file_operations nodeinfo_proc_file_ops = {
-	.owner	 = THIS_MODULE,
-	.open	 = dgrp_nodeinfo_proc_open,
-	.read	 = seq_read,
-	.llseek	 = seq_lseek,
-	.release = seq_release,
-};
-
-static struct proc_dir_entry *net_entry_pointer;
-static struct proc_dir_entry *mon_entry_pointer;
-static struct proc_dir_entry *dpa_entry_pointer;
-static struct proc_dir_entry *ports_entry_pointer;
-
-static void remove_files(struct nd_struct *nd)
-{
-	char buf[3];
-	ID_TO_CHAR(nd->nd_ID, buf);
-	dgrp_remove_node_class_sysfs_files(nd);
-	if (nd->nd_net_de)
-		remove_proc_entry(buf, net_entry_pointer);
-	if (nd->nd_mon_de)
-		remove_proc_entry(buf, mon_entry_pointer);
-	if (nd->nd_dpa_de)
-		remove_proc_entry(buf, dpa_entry_pointer);
-	if (nd->nd_ports_de)
-		remove_proc_entry(buf, ports_entry_pointer);
-}
-
-void dgrp_unregister_proc(void)
-{
-	net_entry_pointer = NULL;
-	mon_entry_pointer = NULL;
-	dpa_entry_pointer = NULL;
-	ports_entry_pointer = NULL;
-
-	if (dgrp_proc_dir_entry) {
-		struct nd_struct *nd;
-		list_for_each_entry(nd, &nd_struct_list, list)
-			remove_files(nd);
-		remove_proc_entry("dgrp/config", NULL);
-		remove_proc_entry("dgrp/info", NULL);
-		remove_proc_entry("dgrp/nodeinfo", NULL);
-		remove_proc_entry("dgrp/net", NULL);
-		remove_proc_entry("dgrp/mon", NULL);
-		remove_proc_entry("dgrp/dpa", NULL);
-		remove_proc_entry("dgrp/ports", NULL);
-		remove_proc_entry("dgrp", NULL);
-		dgrp_proc_dir_entry = NULL;
-	}
-}
-
-void dgrp_register_proc(void)
-{
-	/*
-	 *	Register /proc/dgrp
-	 */
-	dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL);
-	if (!dgrp_proc_dir_entry)
-		return;
-	proc_create("dgrp/config", 0644, NULL, &config_proc_file_ops);
-	proc_create("dgrp/info", 0644, NULL, &info_proc_file_ops);
-	proc_create("dgrp/nodeinfo", 0644, NULL, &nodeinfo_proc_file_ops);
-	net_entry_pointer = proc_mkdir_mode("dgrp/net", 0500, NULL);
-	mon_entry_pointer = proc_mkdir_mode("dgrp/mon", 0500, NULL);
-	dpa_entry_pointer = proc_mkdir_mode("dgrp/dpa", 0500, NULL);
-	ports_entry_pointer = proc_mkdir_mode("dgrp/ports", 0500, NULL);
-}
-
-static void *dgrp_config_proc_start(struct seq_file *m, loff_t *pos)
-{
-	return seq_list_start_head(&nd_struct_list, *pos);
-}
-
-static void *dgrp_config_proc_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	return seq_list_next(v, &nd_struct_list, pos);
-}
-
-static void dgrp_config_proc_stop(struct seq_file *m, void *v)
-{
-}
-
-static int dgrp_config_proc_show(struct seq_file *m, void *v)
-{
-	struct nd_struct *nd;
-	char tmp_id[4];
-
-	if (v == &nd_struct_list) {
-		seq_puts(m, "#-----------------------------------------------------------------------------\n");
-		seq_puts(m, "#                        Avail\n");
-		seq_puts(m, "# ID  Major  State       Ports\n");
-		return 0;
-	}
-
-	nd = list_entry(v, struct nd_struct, list);
-
-	ID_TO_CHAR(nd->nd_ID, tmp_id);
-
-	seq_printf(m, "  %-2.2s  %-5ld  %-10.10s  %-5d\n",
-		   tmp_id,
-		   nd->nd_major,
-		   ND_STATE_STR(nd->nd_state),
-		   nd->nd_chan_count);
-
-	return 0;
-}
-
-static const struct seq_operations proc_config_ops = {
-	.start = dgrp_config_proc_start,
-	.next  = dgrp_config_proc_next,
-	.stop  = dgrp_config_proc_stop,
-	.show  = dgrp_config_proc_show,
-};
-
-static int dgrp_config_proc_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &proc_config_ops);
-}
-
-
-/*
- *  When writing configuration information, each "record" (i.e. each
- *  write) is treated as an independent request.  See the "parse"
- *  description for more details.
- */
-static ssize_t dgrp_config_proc_write(struct file *file,
-				      const char __user *buffer,
-				      size_t count, loff_t *pos)
-{
-	ssize_t retval;
-	char *inbuf, *sp;
-	char *line, *ldelim;
-
-	if (count > 32768)
-		return -EINVAL;
-
-	inbuf = sp = vzalloc(count + 1);
-	if (!inbuf)
-		return -ENOMEM;
-
-	if (copy_from_user(inbuf, buffer, count)) {
-		retval = -EFAULT;
-		goto done;
-	}
-
-	inbuf[count] = 0;
-
-	ldelim = "\n";
-
-	line = strpbrk(sp, ldelim);
-	while (line) {
-		*line = 0;
-		retval = parse_write_config(sp);
-		if (retval)
-			goto done;
-
-		sp = line + 1;
-		line = strpbrk(sp, ldelim);
-	}
-
-	retval = count;
-done:
-	vfree(inbuf);
-	return retval;
-}
-
-/*
- *  ------------------------------------------------------------------------
- *
- *  The following are the functions to parse input
- *
- *  ------------------------------------------------------------------------
- */
-static inline char *skip_past_ws(const char *str)
-{
-	while ((*str) && !isspace(*str))
-		++str;
-
-	return skip_spaces(str);
-}
-
-static int parse_id(char **c, char *cID)
-{
-	int tmp = **c;
-
-	if (isalnum(tmp) || (tmp == '_'))
-		cID[0] = tmp;
-	else
-		return -EINVAL;
-
-	(*c)++; tmp = **c;
-
-	if (isalnum(tmp) || (tmp == '_')) {
-		cID[1] = tmp;
-		(*c)++;
-	} else
-		cID[1] = 0;
-
-	return 0;
-}
-
-static int parse_add_config(char *buf)
-{
-	char *c = buf;
-	int  retval;
-	char cID[2];
-	long ID;
-
-	c = skip_past_ws(c);
-
-	retval = parse_id(&c, cID);
-	if (retval < 0)
-		return retval;
-
-	ID = CHAR_TO_ID(cID);
-
-	c = skip_past_ws(c);
-
-	return dgrp_add_id(ID);
-}
-
-static int parse_del_config(char *buf)
-{
-	char *c = buf;
-	int  retval;
-	struct nd_struct *nd;
-	char cID[2];
-	long ID;
-	long major;
-
-	c = skip_past_ws(c);
-
-	retval = parse_id(&c, cID);
-	if (retval < 0)
-		return retval;
-
-	ID = CHAR_TO_ID(cID);
-
-	c = skip_past_ws(c);
-
-	retval = kstrtol(c, 10, &major);
-	if (retval)
-		return retval;
-
-	nd = nd_struct_get(major);
-	if (!nd)
-		return -EINVAL;
-
-	if ((nd->nd_major != major) || (nd->nd_ID != ID))
-		return -EINVAL;
-
-	return dgrp_remove_nd(nd);
-}
-
-static int parse_chg_config(char *buf)
-{
-	return -EINVAL;
-}
-
-/*
- *  The passed character buffer represents a single configuration request.
- *  If the first character is a "+", it is parsed as a request to add a
- *     PortServer
- *  If the first character is a "-", it is parsed as a request to delete a
- *     PortServer
- *  If the first character is a "*", it is parsed as a request to change a
- *     PortServer
- *  Any other character (including whitespace) causes the record to be
- *     ignored.
- */
-static int parse_write_config(char *buf)
-{
-	int retval;
-
-	switch (buf[0]) {
-	case '+':
-		retval = parse_add_config(buf);
-		break;
-	case '-':
-		retval = parse_del_config(buf);
-		break;
-	case '*':
-		retval = parse_chg_config(buf);
-		break;
-	default:
-		retval = -EINVAL;
-	}
-
-	return retval;
-}
-
-static int dgrp_info_proc_show(struct seq_file *m, void *v)
-{
-	seq_printf(m, "version: %s\n", DIGI_VERSION);
-	seq_puts(m, "register_with_sysfs: 1\n");
-	seq_printf(m, "pollrate: 0x%08x\t(%d)\n",
-		   dgrp_poll_tick, dgrp_poll_tick);
-
-	return 0;
-}
-
-static int dgrp_info_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, dgrp_info_proc_show, NULL);
-}
-
-
-static void *dgrp_nodeinfo_start(struct seq_file *m, loff_t *pos)
-{
-	return seq_list_start_head(&nd_struct_list, *pos);
-}
-
-static void *dgrp_nodeinfo_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	return seq_list_next(v, &nd_struct_list, pos);
-}
-
-static void dgrp_nodeinfo_stop(struct seq_file *m, void *v)
-{
-}
-
-static int dgrp_nodeinfo_show(struct seq_file *m, void *v)
-{
-	struct nd_struct *nd;
-	char hwver[8];
-	char swver[8];
-	char tmp_id[4];
-
-	if (v == &nd_struct_list) {
-		seq_puts(m, "#-----------------------------------------------------------------------------\n");
-		seq_puts(m, "#                 HW       HW   SW\n");
-		seq_puts(m, "# ID  State       Version  ID   Version  Description\n");
-		return 0;
-	}
-
-	nd = list_entry(v, struct nd_struct, list);
-
-	ID_TO_CHAR(nd->nd_ID, tmp_id);
-
-	if (nd->nd_state == NS_READY) {
-		sprintf(hwver, "%d.%d", (nd->nd_hw_ver >> 8) & 0xff,
-			nd->nd_hw_ver & 0xff);
-		sprintf(swver, "%d.%d", (nd->nd_sw_ver >> 8) & 0xff,
-			nd->nd_sw_ver & 0xff);
-		seq_printf(m, "  %-2.2s  %-10.10s  %-7.7s  %-3d  %-7.7s  %-35.35s\n",
-			   tmp_id,
-			   ND_STATE_STR(nd->nd_state),
-			   hwver,
-			   nd->nd_hw_id,
-			   swver,
-			   nd->nd_ps_desc);
-
-	} else {
-		seq_printf(m, "  %-2.2s  %-10.10s\n",
-			   tmp_id,
-			   ND_STATE_STR(nd->nd_state));
-	}
-
-	return 0;
-}
-
-
-static const struct seq_operations nodeinfo_ops = {
-	.start = dgrp_nodeinfo_start,
-	.next  = dgrp_nodeinfo_next,
-	.stop  = dgrp_nodeinfo_stop,
-	.show  = dgrp_nodeinfo_show,
-};
-
-static int dgrp_nodeinfo_proc_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &nodeinfo_ops);
-}
-
-/**
- * dgrp_add_id() -- creates new nd struct and adds it to list
- * @id: id of device to add
- */
-static int dgrp_add_id(long id)
-{
-	struct nd_struct *nd;
-	int ret;
-	int i;
-
-	nd = kzalloc(sizeof(struct nd_struct), GFP_KERNEL);
-	if (!nd)
-		return -ENOMEM;
-
-	nd->nd_major = 0;
-	nd->nd_ID = id;
-
-	spin_lock_init(&nd->nd_lock);
-
-	init_waitqueue_head(&nd->nd_tx_waitq);
-	init_waitqueue_head(&nd->nd_mon_wqueue);
-	init_waitqueue_head(&nd->nd_dpa_wqueue);
-	sema_init(&nd->nd_mon_semaphore, 1);
-	sema_init(&nd->nd_net_semaphore, 1);
-	spin_lock_init(&nd->nd_dpa_lock);
-	nd->nd_state = NS_CLOSED;
-	for (i = 0; i < SEQ_MAX; i++)
-		init_waitqueue_head(&nd->nd_seq_wque[i]);
-
-	/* setup the structures to get the major number */
-	ret = dgrp_tty_init(nd);
-	if (ret)
-		goto error_out;
-
-	nd->nd_major = nd->nd_serial_ttdriver->major;
-
-	ret = nd_struct_add(nd);
-	if (ret)
-		goto error_out;
-
-	dgrp_create_node_class_sysfs_files(nd);
-	nd->nd_net_de = add_proc_file(nd, net_entry_pointer, &dgrp_net_ops);
-	nd->nd_mon_de = add_proc_file(nd, mon_entry_pointer, &dgrp_mon_ops);
-	nd->nd_dpa_de = add_proc_file(nd, dpa_entry_pointer, &dgrp_dpa_ops);
-	nd->nd_ports_de = add_proc_file(nd, ports_entry_pointer,
-					&dgrp_ports_ops);
-	return 0;
-
-	/* FIXME this guy should free the tty driver stored in nd and destroy
-	 * all channel ports */
-error_out:
-	kfree(nd);
-	return ret;
-
-}
-
-static int dgrp_remove_nd(struct nd_struct *nd)
-{
-	int ret;
-
-	/* Check to see if the selected structure is in use */
-	if (nd->nd_tty_ref_cnt)
-		return -EBUSY;
-
-	remove_files(nd);
-
-	dgrp_tty_uninit(nd);
-
-	ret = nd_struct_del(nd);
-	if (ret)
-		return ret;
-
-	kfree(nd);
-	return 0;
-}
-
-static struct proc_dir_entry *add_proc_file(struct nd_struct *node,
-				 struct proc_dir_entry *root,
-				 const struct file_operations *fops)
-{
-	char buf[3];
-	ID_TO_CHAR(node->nd_ID, buf);
-	return proc_create_data(buf, 0600, root, fops, node);
-}