/* * Copyright 1991-1998 by Open Software Foundation, Inc. * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appears in all copies and * that both the copyright notice and this permission notice appear in * supporting documentation. * * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. * * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * MkLinux */ /* CMU_HIST */ /* * Revision 2.6.3.2 92/04/30 11:49:25 bernadat * 16-Apr-92 emcmanusat gr.osf.org * Define TQ_FLUSHED. * [92/04/22 09:59:57 bernadat] * * Revision 2.6.3.1 92/03/28 10:05:02 jeffreyh * 04-Mar-92 emcmanus at gr.osf.org * Support for out-of-band events: definitions for character quoting * in the input queue, new tty fields to store events. * [92/03/10 07:56:12 bernadat] * * Revision 2.6 91/07/09 23:16:12 danner * Added omron tty specific flags; conditionalized under luna88k. * [91/05/25 danner] * * Revision 2.5 91/05/14 16:02:00 mrt * Correcting copyright * * Revision 2.4 91/02/05 17:10:26 mrt * Changed to new Mach copyright * [91/01/31 17:30:52 mrt] * * Revision 2.3 90/08/27 21:55:44 dbg * Re-created to avoid ownership problems. * [90/07/09 dbg] * */ /* CMU_ENDHIST */ /* *(C)UNIX System Laboratories, Inc. all or some portions of this file are *derived from material licensed to the University of California by *American Telephone and Telegraph Co. or UNIX System Laboratories, *Inc. and are reproduced herein with the permission of UNIX System *Laboratories, Inc. */ /* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ /* * Author: David B. Golub, Carnegie Mellon University * Date: 7/90 * * Compatibility TTY structure for existing TTY device drivers. */ #ifndef _DEVICE_TTY_H_ #define _DEVICE_TTY_H_ #include #include #include #include #include #ifdef luna88k #include #endif #include #include #include struct tty { decl_simple_lock_data(,t_lock) struct cirbuf t_inq; /* input buffer */ struct cirbuf t_outq; /* output buffer */ char * t_addr; /* device pointer */ int t_dev; /* device number */ void (*t_start)( /* routine to start output */ struct tty * tp); #define t_oproc t_start void (*t_stop)( /* routine to stop output */ struct tty * tp, int flags); int (*t_mctl)( /* (optional) routine to control modem signals */ struct tty * tp, int bits, int how); int t_ispeed; /* input speed */ int t_ospeed; /* output speed */ char t_breakc; /* character to deliver when 'break' condition received */ int t_flags; /* mode flags */ int t_state; /* current state */ int t_line; /* fake line discipline number, for old drivers - always 0 */ int t_outofband; /* current out-of-band events */ int t_outofbandarg; /* arg to first out-of-band event */ int t_nquoted; /* number of quoted chars in inq */ int t_hiwater; /* baud-rate limited high water mark */ int t_lowater; /* baud-rate limited low water mark */ queue_head_t t_delayed_read; /* pending read requests */ queue_head_t t_delayed_write;/* pending write requests */ queue_head_t t_delayed_open; /* pending open requests */ io_return_t (*t_getstat)( /* routine to get status */ dev_t dev, dev_flavor_t flavor, dev_status_t data, natural_t * count); #ifdef luna struct jterm t_jt; short t_jstate; char t_term; /* terminal type */ char t_tmflag; /* t_tmflag */ unsigned short t_omron; /* OMRON extended flags */ int *t_kfptr; #endif /* luna */ io_return_t (*t_setstat)( /* routine to set status */ dev_t dev, dev_flavor_t flavor, dev_status_t data, natural_t count); dev_ops_t t_tops; /* another device to possibly push through */ }; typedef struct tty *tty_t; /* * Common TTY service routines */ extern io_return_t char_open( dev_t dev, struct tty * tp, dev_mode_t mode, io_req_t ior); extern io_return_t char_read( struct tty * tp, io_req_t ior); extern io_return_t char_write( struct tty * tp, io_req_t ior); extern void tty_queue_completion( queue_t qh); extern boolean_t tty_queueempty( struct tty * tp, int queue); #define tt_open_wakeup(tp) \ (tty_queue_completion(&(tp)->t_delayed_open)) #define tt_write_wakeup(tp) \ (tty_queue_completion(&(tp)->t_delayed_write)) /* * Structure used to store baud rate specific information */ struct baud_rate_info { int br_rate; int br_info; }; typedef struct baud_rate_info *baud_rate_info_t; extern int baud_rate_get_info(int, baud_rate_info_t); #define OBUFSIZ 100 #define TTMINBUF 90 /* internal state bits */ #define TS_INIT 0x00000001 /* tty structure initialized */ #define TS_TIMEOUT 0x00000002 /* delay timeout in progress */ #define TS_WOPEN 0x00000004 /* waiting for open to complete */ #define TS_ISOPEN 0x00000008 /* device is open */ #define TS_FLUSH 0x00000010 /* outq has been flushed during DMA */ #define TS_CARR_ON 0x00000020 /* software copy of carrier-present */ #define TS_BUSY 0x00000040 /* output in progress */ #define TS_ASLEEP 0x00000080 /* wakeup when output done */ #define TS_TTSTOP 0x00000100 /* output stopped by ctl-s */ #define TS_HUPCLS 0x00000200 /* hang up upon last close */ #define TS_TBLOCK 0x00000400 /* tandem queue blocked */ #define TS_NBIO 0x00001000 /* tty in non-blocking mode */ #define TS_ONDELAY 0x00002000 /* device is open; software copy of * carrier is not present */ #define TS_MIN 0x00004000 /* buffer input chars, if possible */ #define TS_MIN_TO 0x00008000 /* timeout for the above is active */ #define TS_OUT 0x00010000 /* tty in use for dialout only */ #define TS_RTS_DOWN 0x00020000 /* modem pls stop */ #define TS_TRANSLATE 0x00100000 /* translation device enabled */ #define TS_KDB 0x00200000 /* should enter kdb on ALT */ /* flags - old names defined in terms of new ones */ #define TANDEM TF_TANDEM #define ODDP TF_ODDP #define EVENP TF_EVENP #define ANYP (ODDP|EVENP) #define MDMBUF TF_MDMBUF #define LITOUT TF_LITOUT #define NOHANG TF_NOHANG #define ECHO TF_ECHO #define CRMOD TF_CRMOD #define XTABS TF_XTABS #define CRTSCTS TF_CRTSCTS /* these are here only to let old code compile - they are never set */ #define RAW LITOUT #define PASS8 LITOUT /* * Hardware bits. * SHOULD NOT BE HERE. */ #define DONE 0200 #define IENABLE 0100 /* * Modem control commands. */ #define DMSET 0 #define DMBIS 1 #define DMBIC 2 #define DMGET 3 /* * Fake 'line discipline' switch, for the benefit of old code * that wants to call through it. */ struct ldisc_switch { int (*l_read)( /* read */ struct tty * tp, struct uio * uio); int (*l_write)( /* write */ struct tty * tp, struct uio * uio); void (*l_rint)( /* single character input */ unsigned int ch, struct tty * tp); int (*l_modem)( /* modem change */ struct tty * tp, int flag); void (*l_start)(void);/* start output */ }; extern struct ldisc_switch linesw[]; /* * Character quoting, so we can sneak out-of-band events like break into * the input queue. */ #define TTY_QUOTEC ((char)0377) enum {TQ_QUOTEC, TQ_BREAK, TQ_BAD_PARITY, TQ_FLUSHED}; /* Things that follow TTY_QUOTEC. */ extern void ttychars( struct tty * tp); extern void ttydrain( struct tty * tp); extern void ttyclose( struct tty * tp); extern boolean_t tty_portdeath( struct tty * tp, ipc_port_t port); extern io_return_t tty_get_status( struct tty * tp, dev_flavor_t flavor, dev_status_t data, mach_msg_type_number_t * count); extern io_return_t tty_set_status( struct tty * tp, dev_flavor_t flavor, dev_status_t data, mach_msg_type_number_t count); extern boolean_t ttymodem( struct tty * tp, int flag); extern void ttyoutput( unsigned c, struct tty * tp); extern void ttyinput( unsigned int ch, struct tty * tp); extern void ttybreak( int ch, struct tty * tp); extern void ttyinputbadparity( int ch, struct tty * tp); extern void ttrstrt( struct tty * tp); extern void ttstart( struct tty * tp); extern void ttyflush( struct tty * tp, int rw); extern int TTLOWAT( struct tty * tp); extern void tty_cts( struct tty * tp, boolean_t cts_up); #endif /* _DEVICE_TTY_H_ */