linux-imx

// SPDX-License-Identifier: GPL-1.0+

/*

 * $Id: synclinkmp.c,v 4.38 2005/07/15 13:29:44 paulkf Exp $

 *

 * Device driver for Microgate SyncLink Multiport

 * high speed multiprotocol serial adapter.

 *

 * written by Paul Fulghum for Microgate Corporation

 * paulkf@microgate.com

 *

 * Microgate and SyncLink are trademarks of Microgate Corporation

 *

 * Derived from serial.c written by Theodore Ts'o and Linus Torvalds

 *

 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 */

​

#define VERSION(ver,rel,seq) (((ver)<<16) | ((rel)<<8) | (seq))

#if defined(__i386__)

#  define BREAKPOINT() asm("   int $3");

#else

#  define BREAKPOINT() { }

#endif

​

#define MAX_DEVICES 12

​

#include <linux/module.h>

#include <linux/errno.h>

#include <linux/signal.h>

#include <linux/sched.h>

#include <linux/timer.h>

#include <linux/interrupt.h>

#include <linux/pci.h>

#include <linux/tty.h>

#include <linux/tty_flip.h>

#include <linux/serial.h>

#include <linux/major.h>

#include <linux/string.h>

#include <linux/fcntl.h>

#include <linux/ptrace.h>

#include <linux/ioport.h>

#include <linux/mm.h>

#include <linux/seq_file.h>

#include <linux/slab.h>

#include <linux/netdevice.h>

#include <linux/vmalloc.h>

#include <linux/init.h>

#include <linux/delay.h>

#include <linux/ioctl.h>

​

#include <asm/io.h>

#include <asm/irq.h>

#include <asm/dma.h>

#include <linux/bitops.h>

#include <asm/types.h>

#include <linux/termios.h>

#include <linux/workqueue.h>

#include <linux/hdlc.h>

#include <linux/synclink.h>

​

#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINKMP_MODULE))

#define SYNCLINK_GENERIC_HDLC 1

#else

#define SYNCLINK_GENERIC_HDLC 0

#endif

​

#define GET_USER(error,value,addr) error = get_user(value,addr)

#define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0

#define PUT_USER(error,value,addr) error = put_user(value,addr)

#define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0

​

#include <linux/uaccess.h>

​

static MGSL_PARAMS default_params = {

    MGSL_MODE_HDLC,         /* unsigned long mode */

    0,              /* unsigned char loopback; */

    HDLC_FLAG_UNDERRUN_ABORT15, /* unsigned short flags; */

    HDLC_ENCODING_NRZI_SPACE,   /* unsigned char encoding; */

    0,              /* unsigned long clock_speed; */

    0xff,               /* unsigned char addr_filter; */

    HDLC_CRC_16_CCITT,      /* unsigned short crc_type; */

    HDLC_PREAMBLE_LENGTH_8BITS, /* unsigned char preamble_length; */