![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to tty.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Net/2] / Net2 / sys|
Return to tty.h CVS log | Up to [Net/2] / Net2 / sys |
1.1 root 1: /*-
2: * Copyright (c) 1982, 1986 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
33: * @(#)tty.h 7.10 (Berkeley) 6/26/91
34: */
35:
36: #include <sys/termios.h>
37:
38: /*
39: * Clists are character lists, which is a variable length linked list
40: * of cblocks, wiht a count of the number of characters in the list.
41: */
42: struct clist {
43: int c_cc; /* count of characters in queue */
44: char *c_cf; /* first character/cblock */
45: char *c_cl; /* last chararacter/cblock */
46: };
47:
48: /*
49: * Per-tty structure.
50: *
51: * Should be split in two, into device and tty drivers.
52: * Glue could be masks of what to echo and circular buffer
53: * (low, high, timeout).
54: */
55: struct tty {
56: struct clist t_rawq; /* queues */
57: struct clist t_canq;
58: struct clist t_outq;
59: int (*t_oproc)(); /* device */
60: int (*t_param)(); /* device */
61: struct proc *t_rsel; /* tty */
62: struct proc *t_wsel;
63: caddr_t T_LINEP; /* XXX */
64: caddr_t t_addr; /* ??? */
65: dev_t t_dev; /* device */
66: int t_flags; /* (compat) some of both */
67: int t_state; /* some of both */
68: struct session *t_session; /* tty */
69: struct pgrp *t_pgrp; /* foreground process group */
70: char t_line; /* glue */
71: short t_col; /* tty */
72: short t_rocount, t_rocol; /* tty */
73: short t_hiwat; /* hi water mark */
74: short t_lowat; /* low water mark */
75: struct winsize t_winsize; /* window size */
76: struct termios t_termios; /* termios state */
77: #define t_iflag t_termios.c_iflag
78: #define t_oflag t_termios.c_oflag
79: #define t_cflag t_termios.c_cflag
80: #define t_lflag t_termios.c_lflag
81: #define t_min t_termios.c_min
82: #define t_time t_termios.c_time
83: #define t_cc t_termios.c_cc
84: #define t_ispeed t_termios.c_ispeed
85: #define t_ospeed t_termios.c_ospeed
86: long t_cancc; /* stats */
87: long t_rawcc;
88: long t_outcc;
89: short t_gen; /* generation number */
90: };
91:
92: #define TTIPRI 25 /* sleep priority for tty reads */
93: #define TTOPRI 26 /* sleep priority for tty writes */
94:
95: #define TTMASK 15
96: #define OBUFSIZ 100
97: #define TTYHOG 1024
98:
99: #ifdef KERNEL
100: #define TTMAXHIWAT roundup(2048, CBSIZE)
101: #define TTMINHIWAT roundup(100, CBSIZE)
102: #define TTMAXLOWAT 256
103: #define TTMINLOWAT 32
104: extern struct ttychars ttydefaults;
105: #endif /* KERNEL */
106:
107: /* internal state bits */
108: #define TS_TIMEOUT 0x000001 /* delay timeout in progress */
109: #define TS_WOPEN 0x000002 /* waiting for open to complete */
110: #define TS_ISOPEN 0x000004 /* device is open */
111: #define TS_FLUSH 0x000008 /* outq has been flushed during DMA */
112: #define TS_CARR_ON 0x000010 /* software copy of carrier-present */
113: #define TS_BUSY 0x000020 /* output in progress */
114: #define TS_ASLEEP 0x000040 /* wakeup when output done */
115: #define TS_XCLUDE 0x000080 /* exclusive-use flag against open */
116: #define TS_TTSTOP 0x000100 /* output stopped by ctl-s */
117: /* was TS_HUPCLS 0x000200 * hang up upon last close */
118: #define TS_TBLOCK 0x000400 /* tandem queue blocked */
119: #define TS_RCOLL 0x000800 /* collision in read select */
120: #define TS_WCOLL 0x001000 /* collision in write select */
121: #define TS_ASYNC 0x004000 /* tty in async i/o mode */
122: /* state for intra-line fancy editing work */
123: #define TS_BKSL 0x010000 /* state for lowercase \ work */
124: #define TS_ERASE 0x040000 /* within a \.../ for PRTRUB */
125: #define TS_LNCH 0x080000 /* next character is literal */
126: #define TS_TYPEN 0x100000 /* retyping suspended input (PENDIN) */
127: #define TS_CNTTB 0x200000 /* counting tab width, ignore FLUSHO */
128:
129: #define TS_LOCAL (TS_BKSL|TS_ERASE|TS_LNCH|TS_TYPEN|TS_CNTTB)
130:
131: /* define partab character types */
132: #define ORDINARY 0
133: #define CONTROL 1
134: #define BACKSPACE 2
135: #define NEWLINE 3
136: #define TAB 4
137: #define VTAB 5
138: #define RETURN 6
139:
140: struct speedtab {
141: int sp_speed;
142: int sp_code;
143: };
144: /*
145: * Flags on character passed to ttyinput
146: */
147: #define TTY_CHARMASK 0x000000ff /* Character mask */
148: #define TTY_QUOTE 0x00000100 /* Character quoted */
149: #define TTY_ERRORMASK 0xff000000 /* Error mask */
150: #define TTY_FE 0x01000000 /* Framing error or BREAK condition */
151: #define TTY_PE 0x02000000 /* Parity error */
152:
153: /*
154: * Is tp controlling terminal for p
155: */
156: #define isctty(p, tp) ((p)->p_session == (tp)->t_session && \
157: (p)->p_flag&SCTTY)
158: /*
159: * Is p in background of tp
160: */
161: #define isbackground(p, tp) (isctty((p), (tp)) && \
162: (p)->p_pgrp != (tp)->t_pgrp)
163: /*
164: * Modem control commands (driver).
165: */
166: #define DMSET 0
167: #define DMBIS 1
168: #define DMBIC 2
169: #define DMGET 3
170:
171: #ifdef KERNEL
172: /* symbolic sleep message strings */
173: extern char ttyin[], ttyout[], ttopen[], ttclos[], ttybg[], ttybuf[];
174: #endif
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.