user_tbase.c

/*
 *
 *   Copyright (c) International Business Machines  Corp., 2001
 *
 *   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 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY;  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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *

 * This is the main of your user space test program,
 * which will open the correct kernel module, find the
 * file descriptor value and use that value to make
 * ioctl calls to the system
 *
 * Use the ki_generic and other ki_testname functions
 * to abstract the calls from the main
 *
 * author: Sean Ruyle
 * date:   06/11/2003
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <errno.h>

#include "user_tbase.h"
#include "../tbase/tbase.h"

static int tbase_fd = -1;	/* file descriptor */

int tbaseopen()
{

	dev_t devt;
	struct stat st;
	int rc = 0;

	devt = makedev(TBASEMAJOR, 0);

	if (rc) {
		if (errno == ENOENT) {
			/* dev node does not exist. */
			rc = mkdir("/dev/tbase", (S_IFDIR | S_IRWXU |
						  S_IRGRP | S_IXGRP |
						  S_IROTH | S_IXOTH));
		} else {
			printf
			    ("ERROR: Problem with Base dev directory.  Error code from stat() is %d\n\n",
			     errno);
		}

	} else {
		if (!(st.st_mode & S_IFDIR)) {
			rc = unlink("/dev/tbase");
			if (!rc) {
				rc = mkdir("/dev/tbase", (S_IFDIR | S_IRWXU |
							  S_IRGRP | S_IXGRP |
							  S_IROTH | S_IXOTH));
			}
		}
	}

	/*
	 * Check for the /dev/tbase node, and create if it does not
	 * exist.
	 */
	rc = stat("/dev/tbase", &st);
	if (rc) {
		if (errno == ENOENT) {
			/* dev node does not exist */
			rc = mknod("/dev/tbase",
				   (S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP |
				    S_IWGRP), devt);
		} else {
			printf
			    ("ERROR:Problem with tbase device node directory.  Error code form stat() is %d\n\n",
			     errno);
		}

	} else {
		/*
		 * /dev/tbase CHR device exists.  Check to make sure it is for a
		 * block device and that it has the right major and minor.
		 */
		if ((!(st.st_mode & S_IFCHR)) || (st.st_rdev != devt)) {

			/* Recreate the dev node. */
			rc = unlink("/dev/tbase");
			if (!rc) {
				rc = mknod("/dev/tbase",
					   (S_IFCHR | S_IRUSR | S_IWUSR |
					    S_IRGRP | S_IWGRP), devt);
			}
		}
	}

	tbase_fd = open("/dev/tbase", O_RDWR);

	if (tbase_fd < 0) {
		printf("ERROR: Open of device %s failed %d errno = %d\n",
		       "/dev/tbase", tbase_fd, errno);
		return errno;
	} else {
		printf("Device opened successfully \n");
		return 0;
	}

}

int tbaseclose()
{

	if (tbase_fd != -1) {
		close(tbase_fd);
		tbase_fd = -1;
	}

	return 0;
}

int main()
{
	int rc;

	/* open the module */
	rc = tbaseopen();
	if (rc) {
		printf("Test MOD Driver may not be loaded\n");
		exit(1);
	}

	/* test bus rescan */
	if (ki_generic(tbase_fd, BUS_RESCAN))
		printf("Failed on bus rescan\n");
	else
		printf("Success on bus rescan\n");

	/* test get driver */
	if (ki_generic(tbase_fd, GET_DRV))
		printf("Failed on get driver\n");
	else
		printf("Success on get driver\n");

	/* test put driver */
	if (ki_generic(tbase_fd, PUT_DRV))
		printf("Failed on put driver\n");
	else
		printf("Success on put driver\n");

	/* test register firmware, should return not 0 */
	if (ki_generic(tbase_fd, REG_FIRM))
		printf
		    ("Failed on register firmware\n\tPossibly because parent nodes already set\n");
	else
		printf("Success on register firmware\n");

	/* test create driver file sysfs */
	if (ki_generic(tbase_fd, CREATE_FILE))
		printf("Failed on creating driver file\n");
	else
		printf("Success on creating driver file\n");

	/* test device suspend and resume */
	if (ki_generic(tbase_fd, DEV_SUSPEND))
		printf("Failed on suspending device\n");
	else
		printf("Success on suspending device\n");

	/* test device create file sysfs */
	if (ki_generic(tbase_fd, DEV_FILE))
		printf("Failed on creating device file\n");
	else
		printf("Success on creating device file\n");

	/* test bus create file sysfs */
	if (ki_generic(tbase_fd, BUS_FILE))
		printf("Failed on creating bus file\n");
	else
		printf("Success on creating bus file\n");

	/* test register class */
	if (ki_generic(tbase_fd, CLASS_REG))
		printf("Failed on registering class\n");
	else
		printf("Success on registering class\n");

	/* test get class */
	if (ki_generic(tbase_fd, CLASS_GET))
		printf("Failed on get class\n");
	else
		printf("Success on get class\n");

	/* test class create file sysfs */
	if (ki_generic(tbase_fd, CLASS_FILE))
		printf("Failed on creating class file\n");
	else
		printf("Success on creating class file\n");

	/* test unregistering class */
	if (ki_generic(tbase_fd, CLASS_UNREG))
		printf("Failed on unregistering class\n");
	else
		printf("Success on unregistering class\n");

	/* test register class device */
	if (ki_generic(tbase_fd, CLASSDEV_REG))
		printf
		    ("Failed on registering class device and creating sysfs file\n");
	else
		printf
		    ("Success on registering class device and creating sysfs file\n");

	/* test register class interface */
	if (ki_generic(tbase_fd, CLASSINT_REG))
		printf("Failed on registering class interface\n");
	else
		printf("Success on registering class interface\n");

	/* test register sysdev_class */
	if (ki_generic(tbase_fd, SYSDEV_CLS_REG))
		printf("Failed on registering sysdev_class\n");
	else
		printf("Success on registering sysdev_class\n");

	/* test register sysdev */
	if (ki_generic(tbase_fd, SYSDEV_REG))
		printf("Failed on registering sysdev\n");
	else
		printf("Success on registering sysdev\n");

	/* test unregister sysdev */
	if (ki_generic(tbase_fd, SYSDEV_UNREG))
		printf("Failed on unregistering sysdev\n");
	else
		printf("Success on unregistering sysdev\n");

	/* test unregister sysdev_class */
	if (ki_generic(tbase_fd, SYSDEV_CLS_UNREG))
		printf("Failed on unregistering sysdev_class\n");
	else
		printf("Success on unregistering sysdev_class\n");

	/* close the module */
	rc = tbaseclose();
	if (rc) {
		printf("Test MOD Driver may not be closed\n");
		exit(1);
	}

	return 0;
}