2000-09-07 18:39:51 +00:00
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/*
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* Server-side serial port communications management
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*
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* Copyright (C) 1998 Alexandre Julliard
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2001-12-20 00:07:05 +00:00
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* Copyright (C) 2000,2001 Mike McCormack
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2000-09-07 18:39:51 +00:00
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*
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2002-03-09 23:29:33 +00:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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2000-09-07 18:39:51 +00:00
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*/
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#include "config.h"
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2002-04-26 18:31:19 +00:00
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#include "wine/port.h"
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2000-09-07 18:39:51 +00:00
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#include <assert.h>
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#include <fcntl.h>
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2003-09-05 23:08:26 +00:00
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#include <stdarg.h>
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2000-09-07 18:39:51 +00:00
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <time.h>
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#include <unistd.h>
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2003-02-11 22:27:13 +00:00
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#ifdef HAVE_UTIME_H
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2000-09-07 18:39:51 +00:00
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#include <utime.h>
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2003-02-11 22:27:13 +00:00
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#endif
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#ifdef HAVE_TERMIOS_H
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2000-09-07 18:39:51 +00:00
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#include <termios.h>
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2003-02-11 22:27:13 +00:00
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#endif
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#ifdef HAVE_SYS_IOCTL_H
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2000-09-07 18:39:51 +00:00
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#include <sys/ioctl.h>
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2003-02-11 22:27:13 +00:00
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#endif
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2005-03-04 12:38:36 +00:00
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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2000-09-07 18:39:51 +00:00
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2005-11-28 16:32:54 +00:00
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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2003-09-05 23:08:26 +00:00
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#include "windef.h"
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2004-03-18 04:08:48 +00:00
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#include "winternl.h"
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2000-09-07 18:39:51 +00:00
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2003-01-30 00:26:44 +00:00
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#include "file.h"
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2000-09-07 18:39:51 +00:00
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#include "handle.h"
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#include "thread.h"
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#include "request.h"
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static void serial_dump( struct object *obj, int verbose );
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2003-02-19 00:33:32 +00:00
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static struct fd *serial_get_fd( struct object *obj );
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2003-02-14 20:27:09 +00:00
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static void serial_destroy(struct object *obj);
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static int serial_get_poll_events( struct fd *fd );
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static void serial_poll_event( struct fd *fd, int event );
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2004-08-18 00:04:58 +00:00
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static int serial_get_info( struct fd *fd );
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2003-05-15 04:22:45 +00:00
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static int serial_flush( struct fd *fd, struct event **event );
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2005-01-14 19:54:38 +00:00
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static void serial_queue_async( struct fd *fd, void *apc, void *user, void *iosb, int type, int count );
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static void serial_cancel_async( struct fd *fd );
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2000-09-07 18:39:51 +00:00
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struct serial
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{
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struct object obj;
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2003-02-19 00:33:32 +00:00
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struct fd *fd;
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2004-03-18 04:08:48 +00:00
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unsigned int options;
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2000-09-07 18:39:51 +00:00
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/* timeout values */
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unsigned int readinterval;
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unsigned int readconst;
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unsigned int readmult;
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unsigned int writeconst;
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unsigned int writemult;
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unsigned int eventmask;
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unsigned int commerror;
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struct termios original;
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2005-02-24 17:06:31 +00:00
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struct list read_q;
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struct list write_q;
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struct list wait_q;
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2001-12-20 00:07:05 +00:00
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2000-09-07 18:39:51 +00:00
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/* FIXME: add dcb, comm status, handler module, sharing */
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};
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static const struct object_ops serial_ops =
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{
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sizeof(struct serial), /* size */
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serial_dump, /* dump */
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2003-01-30 00:26:44 +00:00
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default_fd_add_queue, /* add_queue */
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default_fd_remove_queue, /* remove_queue */
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default_fd_signaled, /* signaled */
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2000-09-07 18:39:51 +00:00
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no_satisfied, /* satisfied */
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2005-04-24 17:35:52 +00:00
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no_signal, /* signal */
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2003-02-19 00:33:32 +00:00
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serial_get_fd, /* get_fd */
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2005-11-22 14:55:42 +00:00
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no_lookup_name, /* lookup_name */
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2005-06-09 15:39:52 +00:00
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no_close_handle, /* close_handle */
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2003-02-14 20:27:09 +00:00
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serial_destroy /* destroy */
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2003-01-30 00:26:44 +00:00
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};
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static const struct fd_ops serial_fd_ops =
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{
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2000-09-07 18:39:51 +00:00
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serial_get_poll_events, /* get_poll_events */
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2001-12-20 00:07:05 +00:00
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serial_poll_event, /* poll_event */
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2002-07-16 01:20:38 +00:00
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serial_flush, /* flush */
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2000-09-07 18:39:51 +00:00
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serial_get_info, /* get_file_info */
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2005-01-14 19:54:38 +00:00
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serial_queue_async, /* queue_async */
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serial_cancel_async /* cancel_async */
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2000-09-07 18:39:51 +00:00
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};
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2004-03-18 04:08:48 +00:00
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/* check if the given fd is a serial port */
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int is_serial_fd( struct fd *fd )
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2000-09-07 18:39:51 +00:00
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{
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2000-10-15 00:40:25 +00:00
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struct termios tios;
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2004-03-18 04:08:48 +00:00
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return !tcgetattr( get_unix_fd(fd), &tios );
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}
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2001-08-21 17:01:48 +00:00
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2004-03-18 04:08:48 +00:00
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/* create a serial object for a given fd */
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struct object *create_serial( struct fd *fd, unsigned int options )
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{
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struct serial *serial;
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int unix_fd;
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2000-10-15 00:40:25 +00:00
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2004-03-18 04:08:48 +00:00
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if ((unix_fd = dup( get_unix_fd(fd) )) == -1) return NULL;
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2000-09-07 18:39:51 +00:00
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2001-10-08 20:40:57 +00:00
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/* set the fd back to blocking if necessary */
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2004-03-18 04:08:48 +00:00
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if (options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT))
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fcntl( unix_fd, F_SETFL, 0 );
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2001-10-08 20:40:57 +00:00
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2003-03-12 22:38:14 +00:00
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if (!(serial = alloc_object( &serial_ops )))
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2000-10-15 00:40:25 +00:00
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{
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2004-03-18 04:08:48 +00:00
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close( unix_fd );
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2003-03-12 22:38:14 +00:00
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return NULL;
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}
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2004-03-18 04:08:48 +00:00
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serial->options = options;
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2003-03-12 22:38:14 +00:00
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serial->readinterval = 0;
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serial->readmult = 0;
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serial->readconst = 0;
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serial->writemult = 0;
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serial->writeconst = 0;
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serial->eventmask = 0;
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serial->commerror = 0;
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2005-02-24 17:06:31 +00:00
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list_init( &serial->read_q );
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list_init( &serial->write_q );
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list_init( &serial->wait_q );
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2004-03-18 04:08:48 +00:00
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if (!(serial->fd = create_anonymous_fd( &serial_fd_ops, unix_fd, &serial->obj )))
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2003-03-12 22:38:14 +00:00
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{
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release_object( serial );
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return NULL;
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2000-10-15 00:40:25 +00:00
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}
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2004-03-18 04:08:48 +00:00
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return &serial->obj;
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2000-09-07 18:39:51 +00:00
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}
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2003-02-19 00:33:32 +00:00
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static struct fd *serial_get_fd( struct object *obj )
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{
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struct serial *serial = (struct serial *)obj;
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return (struct fd *)grab_object( serial->fd );
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}
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2003-02-14 20:27:09 +00:00
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static void serial_destroy( struct object *obj)
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2001-12-20 00:07:05 +00:00
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{
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struct serial *serial = (struct serial *)obj;
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2005-01-14 19:54:38 +00:00
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async_terminate_queue( &serial->read_q, STATUS_CANCELLED );
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async_terminate_queue( &serial->write_q, STATUS_CANCELLED );
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async_terminate_queue( &serial->wait_q, STATUS_CANCELLED );
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2003-02-19 00:33:32 +00:00
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if (serial->fd) release_object( serial->fd );
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2001-12-20 00:07:05 +00:00
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}
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2000-10-15 00:40:25 +00:00
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static void serial_dump( struct object *obj, int verbose )
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2000-09-07 18:39:51 +00:00
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{
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2000-10-15 00:40:25 +00:00
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struct serial *serial = (struct serial *)obj;
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2000-09-07 18:39:51 +00:00
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assert( obj->ops == &serial_ops );
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2003-02-19 00:33:32 +00:00
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fprintf( stderr, "Port fd=%p mask=%x\n", serial->fd, serial->eventmask );
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2000-09-07 18:39:51 +00:00
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}
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2003-02-19 00:33:32 +00:00
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static struct serial *get_serial_obj( struct process *process, obj_handle_t handle, unsigned int access )
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2000-09-07 18:39:51 +00:00
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{
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return (struct serial *)get_handle_obj( process, handle, access, &serial_ops );
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}
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2003-02-14 20:27:09 +00:00
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static int serial_get_poll_events( struct fd *fd )
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2000-09-07 18:39:51 +00:00
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{
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2003-02-14 20:27:09 +00:00
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struct serial *serial = get_fd_user( fd );
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2000-09-07 18:39:51 +00:00
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int events = 0;
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2003-02-14 20:27:09 +00:00
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assert( serial->obj.ops == &serial_ops );
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2001-12-20 00:07:05 +00:00
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2005-02-24 17:06:31 +00:00
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if (!list_empty( &serial->read_q )) events |= POLLIN;
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if (!list_empty( &serial->write_q )) events |= POLLOUT;
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if (!list_empty( &serial->wait_q )) events |= POLLIN;
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2001-12-20 00:07:05 +00:00
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/* fprintf(stderr,"poll events are %04x\n",events); */
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2000-09-07 18:39:51 +00:00
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return events;
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}
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2004-08-18 00:04:58 +00:00
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static int serial_get_info( struct fd *fd )
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2000-09-07 18:39:51 +00:00
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{
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2004-08-18 00:04:58 +00:00
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int flags = 0;
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2003-02-14 20:27:09 +00:00
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struct serial *serial = get_fd_user( fd );
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assert( serial->obj.ops == &serial_ops );
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2001-10-08 20:40:57 +00:00
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2004-03-18 04:08:48 +00:00
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if (!(serial->options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT)))
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2004-08-18 00:04:58 +00:00
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flags |= FD_FLAG_OVERLAPPED;
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2004-08-17 23:37:55 +00:00
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else if (!(serial->readinterval == MAXDWORD &&
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serial->readmult == 0 && serial->readconst == 0))
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2004-08-18 00:04:58 +00:00
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flags |= FD_FLAG_TIMEOUT;
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if (serial->readinterval == MAXDWORD &&
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2004-08-17 23:37:55 +00:00
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serial->readmult == 0 && serial->readconst == 0)
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2004-08-18 00:04:58 +00:00
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flags |= FD_FLAG_AVAILABLE;
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2001-10-08 20:40:57 +00:00
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2004-08-18 00:04:58 +00:00
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return flags;
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2000-09-07 18:39:51 +00:00
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}
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2003-02-14 20:27:09 +00:00
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static void serial_poll_event(struct fd *fd, int event)
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2001-12-20 00:07:05 +00:00
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{
|
2003-02-14 20:27:09 +00:00
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struct serial *serial = get_fd_user( fd );
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2001-12-20 00:07:05 +00:00
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/* fprintf(stderr,"Poll event %02x\n",event); */
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2005-02-24 17:06:31 +00:00
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if (!list_empty( &serial->read_q ) && (POLLIN & event) )
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async_terminate_head( &serial->read_q, STATUS_ALERTED );
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2001-12-20 00:07:05 +00:00
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2005-02-24 17:06:31 +00:00
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if (!list_empty( &serial->write_q ) && (POLLOUT & event) )
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async_terminate_head( &serial->write_q, STATUS_ALERTED );
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2001-12-20 00:07:05 +00:00
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2005-02-24 17:06:31 +00:00
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if (!list_empty( &serial->wait_q ) && (POLLIN & event) )
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async_terminate_head( &serial->wait_q, STATUS_ALERTED );
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2001-12-20 00:07:05 +00:00
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2003-02-19 00:33:32 +00:00
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set_fd_events( fd, serial_get_poll_events(fd) );
|
2001-12-20 00:07:05 +00:00
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}
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|
2005-01-14 19:54:38 +00:00
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static void serial_queue_async( struct fd *fd, void *apc, void *user, void *iosb,
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int type, int count )
|
2000-11-13 19:27:21 +00:00
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{
|
2003-02-14 20:27:09 +00:00
|
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struct serial *serial = get_fd_user( fd );
|
2005-02-24 17:06:31 +00:00
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struct list *queue;
|
2001-12-20 00:07:05 +00:00
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int timeout;
|
2005-01-14 19:54:38 +00:00
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int events;
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2000-11-13 19:27:21 +00:00
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2003-02-14 20:27:09 +00:00
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assert(serial->obj.ops == &serial_ops);
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2000-11-13 19:27:21 +00:00
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2005-01-14 19:54:38 +00:00
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switch (type)
|
2000-11-13 19:27:21 +00:00
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{
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case ASYNC_TYPE_READ:
|
2005-02-24 17:06:31 +00:00
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queue = &serial->read_q;
|
2001-12-20 00:07:05 +00:00
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timeout = serial->readconst + serial->readmult*count;
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break;
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case ASYNC_TYPE_WAIT:
|
2005-02-24 17:06:31 +00:00
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queue = &serial->wait_q;
|
2001-12-20 00:07:05 +00:00
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timeout = 0;
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break;
|
2000-11-13 19:27:21 +00:00
|
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case ASYNC_TYPE_WRITE:
|
2005-02-24 17:06:31 +00:00
|
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queue = &serial->write_q;
|
2001-12-20 00:07:05 +00:00
|
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timeout = serial->writeconst + serial->writemult*count;
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|
break;
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|
default:
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|
set_error(STATUS_INVALID_PARAMETER);
|
2002-04-24 21:29:54 +00:00
|
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|
return;
|
2001-12-20 00:07:05 +00:00
|
|
|
}
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|
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|
2005-03-29 11:40:10 +00:00
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|
if (!create_async( current, &timeout, queue, apc, user, iosb ))
|
2005-01-14 19:54:38 +00:00
|
|
|
return;
|
2002-04-24 21:29:54 +00:00
|
|
|
|
2005-01-14 19:54:38 +00:00
|
|
|
/* Check if the new pending request can be served immediately */
|
|
|
|
events = check_fd_events( fd, serial_get_poll_events( fd ) );
|
|
|
|
if (events)
|
2001-12-20 00:07:05 +00:00
|
|
|
{
|
2005-01-14 19:54:38 +00:00
|
|
|
/* serial_poll_event() calls set_select_events() */
|
|
|
|
serial_poll_event( fd, events );
|
|
|
|
return;
|
|
|
|
}
|
2002-04-24 21:29:54 +00:00
|
|
|
|
2005-01-14 19:54:38 +00:00
|
|
|
set_fd_events( fd, serial_get_poll_events( fd ) );
|
|
|
|
}
|
2002-04-26 18:31:19 +00:00
|
|
|
|
2005-01-14 19:54:38 +00:00
|
|
|
static void serial_cancel_async( struct fd *fd )
|
|
|
|
{
|
|
|
|
struct serial *serial = get_fd_user( fd );
|
|
|
|
assert(serial->obj.ops == &serial_ops);
|
2000-11-13 19:27:21 +00:00
|
|
|
|
2005-01-14 19:54:38 +00:00
|
|
|
async_terminate_queue( &serial->read_q, STATUS_CANCELLED );
|
|
|
|
async_terminate_queue( &serial->write_q, STATUS_CANCELLED );
|
|
|
|
async_terminate_queue( &serial->wait_q, STATUS_CANCELLED );
|
2001-12-20 00:07:05 +00:00
|
|
|
}
|
2000-11-13 19:27:21 +00:00
|
|
|
|
2003-05-15 04:22:45 +00:00
|
|
|
static int serial_flush( struct fd *fd, struct event **event )
|
2002-07-16 01:20:38 +00:00
|
|
|
{
|
|
|
|
/* MSDN says: If hFile is a handle to a communications device,
|
|
|
|
* the function only flushes the transmit buffer.
|
|
|
|
*/
|
2003-02-14 20:27:09 +00:00
|
|
|
int ret = (tcflush( get_unix_fd(fd), TCOFLUSH ) != -1);
|
2002-07-16 01:20:38 +00:00
|
|
|
if (!ret) file_set_error();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2000-09-16 20:55:12 +00:00
|
|
|
DECL_HANDLER(get_serial_info)
|
|
|
|
{
|
|
|
|
struct serial *serial;
|
|
|
|
|
|
|
|
if ((serial = get_serial_obj( current->process, req->handle, 0 )))
|
|
|
|
{
|
|
|
|
/* timeouts */
|
2001-11-30 18:46:42 +00:00
|
|
|
reply->readinterval = serial->readinterval;
|
|
|
|
reply->readconst = serial->readconst;
|
|
|
|
reply->readmult = serial->readmult;
|
|
|
|
reply->writeconst = serial->writeconst;
|
|
|
|
reply->writemult = serial->writemult;
|
2000-09-16 20:55:12 +00:00
|
|
|
|
|
|
|
/* event mask */
|
2001-11-30 18:46:42 +00:00
|
|
|
reply->eventmask = serial->eventmask;
|
2000-09-16 20:55:12 +00:00
|
|
|
|
|
|
|
/* comm port error status */
|
2001-11-30 18:46:42 +00:00
|
|
|
reply->commerror = serial->commerror;
|
2000-09-16 20:55:12 +00:00
|
|
|
|
|
|
|
release_object( serial );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
DECL_HANDLER(set_serial_info)
|
|
|
|
{
|
|
|
|
struct serial *serial;
|
|
|
|
|
|
|
|
if ((serial = get_serial_obj( current->process, req->handle, 0 )))
|
|
|
|
{
|
|
|
|
/* timeouts */
|
2005-01-14 19:54:38 +00:00
|
|
|
if (req->flags & SERIALINFO_SET_TIMEOUTS)
|
2000-09-16 20:55:12 +00:00
|
|
|
{
|
|
|
|
serial->readinterval = req->readinterval;
|
|
|
|
serial->readconst = req->readconst;
|
|
|
|
serial->readmult = req->readmult;
|
|
|
|
serial->writeconst = req->writeconst;
|
|
|
|
serial->writemult = req->writemult;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* event mask */
|
2005-01-14 19:54:38 +00:00
|
|
|
if (req->flags & SERIALINFO_SET_MASK)
|
2000-09-16 20:55:12 +00:00
|
|
|
{
|
|
|
|
serial->eventmask = req->eventmask;
|
2005-01-14 19:54:38 +00:00
|
|
|
if (!serial->eventmask)
|
2002-03-12 19:19:57 +00:00
|
|
|
{
|
2005-01-14 19:54:38 +00:00
|
|
|
async_terminate_queue( &serial->wait_q, STATUS_SUCCESS );
|
2002-03-12 19:19:57 +00:00
|
|
|
}
|
2000-09-16 20:55:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* comm port error status */
|
2005-01-14 19:54:38 +00:00
|
|
|
if (req->flags & SERIALINFO_SET_ERROR)
|
2000-09-16 20:55:12 +00:00
|
|
|
{
|
|
|
|
serial->commerror = req->commerror;
|
|
|
|
}
|
|
|
|
|
|
|
|
release_object( serial );
|
|
|
|
}
|
|
|
|
}
|