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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: *
1.1.1.3 ! root 33: * from: @(#)tty.h 7.10 (Berkeley) 6/26/91
! 34: * tty.h,v 1.10 1993/07/19 05:52:27 mycroft Exp
1.1 root 35: */
36:
1.1.1.3 ! root 37: #ifndef _SYS_TTY_H_
! 38: #define _SYS_TTY_H_
! 39:
1.1 root 40: #include <sys/termios.h>
1.1.1.3 ! root 41: #include <sys/select.h> /* for struct selinfo */
1.1 root 42:
1.1.1.3 ! root 43: #ifndef REAL_CLISTS
1.1 root 44: /*
1.1.1.3 ! root 45: * Clists are actually ring buffers. The c_cc, c_cf, c_cl fields have
! 46: * exactly the same behaviour as in true clists.
! 47: * if c_cq is NULL, the ring buffer has no TTY_QUOTE functionality
! 48: * (but, saves memory and cpu time)
! 49: *
! 50: * *DON'T* play with c_cs, c_ce, c_cq, or c_cl outside tty_subr.c!!!
! 51: */
! 52: struct clist {
! 53: int c_cc; /* count of characters in queue */
! 54: int c_cn; /* total ring buffer length */
! 55: u_char *c_cf; /* points to first character */
! 56: u_char *c_cl; /* points to next open character */
! 57: u_char *c_cs; /* start of ring buffer */
! 58: u_char *c_ce; /* c_ce + c_len */
! 59: u_char *c_cq; /* N bits/bytes long, see tty_subr.c */
! 60: };
! 61: #else
! 62: /*
! 63: * Clists are character lists, which is a variable length linked list
! 64: * of cblocks, wiht a count of the number of characters in the list.
1.1 root 65: */
1.1.1.3 ! root 66: struct clist {
! 67: int c_cc;
! 68: u_char *c_cf;
! 69: u_char *c_cl;
1.1 root 70: };
1.1.1.3 ! root 71: #endif
1.1.1.2 root 72:
1.1 root 73: /*
74: * Per-tty structure.
75: *
76: * Should be split in two, into device and tty drivers.
77: * Glue could be masks of what to echo and circular buffer
78: * (low, high, timeout).
79: */
80: struct tty {
1.1.1.3 ! root 81: struct clist t_rawq; /* queues */
! 82: struct clist t_canq;
! 83: struct clist t_outq;
! 84: int (*t_oproc) __P((struct tty *tp)); /* device */
1.1 root 85: int (*t_param)(); /* device */
1.1.1.3 ! root 86: struct selinfo t_rsel; /* tty */
! 87: struct selinfo t_wsel;
1.1 root 88: caddr_t T_LINEP; /* XXX */
89: caddr_t t_addr; /* ??? */
90: dev_t t_dev; /* device */
91: int t_flags; /* (compat) some of both */
92: int t_state; /* some of both */
93: struct session *t_session; /* tty */
94: struct pgrp *t_pgrp; /* foreground process group */
95: char t_line; /* glue */
96: short t_col; /* tty */
97: short t_rocount, t_rocol; /* tty */
98: short t_hiwat; /* hi water mark */
99: short t_lowat; /* low water mark */
100: struct winsize t_winsize; /* window size */
101: struct termios t_termios; /* termios state */
102: #define t_iflag t_termios.c_iflag
103: #define t_oflag t_termios.c_oflag
104: #define t_cflag t_termios.c_cflag
105: #define t_lflag t_termios.c_lflag
106: #define t_min t_termios.c_min
107: #define t_time t_termios.c_time
108: #define t_cc t_termios.c_cc
109: #define t_ispeed t_termios.c_ispeed
110: #define t_ospeed t_termios.c_ospeed
111: long t_cancc; /* stats */
112: long t_rawcc;
113: long t_outcc;
114: short t_gen; /* generation number */
1.1.1.2 root 115: short t_mask; /* interrupt mask */
1.1 root 116: };
117:
118: #define TTIPRI 25 /* sleep priority for tty reads */
119: #define TTOPRI 26 /* sleep priority for tty writes */
120:
121: #define TTMASK 15
122: #define OBUFSIZ 100
123: #define TTYHOG 1024
124:
125: #ifdef KERNEL
1.1.1.3 ! root 126: #define TTMAXHIWAT roundup(2048, CBSIZE)
! 127: #define TTMINHIWAT roundup(100, CBSIZE)
1.1 root 128: #define TTMAXLOWAT 256
129: #define TTMINLOWAT 32
130: extern struct ttychars ttydefaults;
131: #endif /* KERNEL */
132:
133: /* internal state bits */
134: #define TS_TIMEOUT 0x000001 /* delay timeout in progress */
135: #define TS_WOPEN 0x000002 /* waiting for open to complete */
136: #define TS_ISOPEN 0x000004 /* device is open */
137: #define TS_FLUSH 0x000008 /* outq has been flushed during DMA */
138: #define TS_CARR_ON 0x000010 /* software copy of carrier-present */
139: #define TS_BUSY 0x000020 /* output in progress */
140: #define TS_ASLEEP 0x000040 /* wakeup when output done */
141: #define TS_XCLUDE 0x000080 /* exclusive-use flag against open */
142: #define TS_TTSTOP 0x000100 /* output stopped by ctl-s */
143: /* was TS_HUPCLS 0x000200 * hang up upon last close */
144: #define TS_TBLOCK 0x000400 /* tandem queue blocked */
1.1.1.3 ! root 145: /* was TS_RCOLL 0x000800 * collision in read select */
! 146: /* was TS_WCOLL 0x001000 * collision in write select */
1.1 root 147: #define TS_ASYNC 0x004000 /* tty in async i/o mode */
148: /* state for intra-line fancy editing work */
149: #define TS_BKSL 0x010000 /* state for lowercase \ work */
150: #define TS_ERASE 0x040000 /* within a \.../ for PRTRUB */
151: #define TS_LNCH 0x080000 /* next character is literal */
152: #define TS_TYPEN 0x100000 /* retyping suspended input (PENDIN) */
153: #define TS_CNTTB 0x200000 /* counting tab width, ignore FLUSHO */
154:
155: #define TS_LOCAL (TS_BKSL|TS_ERASE|TS_LNCH|TS_TYPEN|TS_CNTTB)
156:
157: /* define partab character types */
158: #define ORDINARY 0
159: #define CONTROL 1
160: #define BACKSPACE 2
161: #define NEWLINE 3
162: #define TAB 4
163: #define VTAB 5
164: #define RETURN 6
165:
166: struct speedtab {
167: int sp_speed;
168: int sp_code;
169: };
170: /*
171: * Flags on character passed to ttyinput
172: */
173: #define TTY_CHARMASK 0x000000ff /* Character mask */
174: #define TTY_QUOTE 0x00000100 /* Character quoted */
175: #define TTY_ERRORMASK 0xff000000 /* Error mask */
176: #define TTY_FE 0x01000000 /* Framing error or BREAK condition */
177: #define TTY_PE 0x02000000 /* Parity error */
178:
179: /*
180: * Is tp controlling terminal for p
181: */
182: #define isctty(p, tp) ((p)->p_session == (tp)->t_session && \
183: (p)->p_flag&SCTTY)
184: /*
185: * Is p in background of tp
186: */
187: #define isbackground(p, tp) (isctty((p), (tp)) && \
188: (p)->p_pgrp != (tp)->t_pgrp)
189: /*
1.1.1.3 ! root 190: * Empty queue
! 191: */
! 192: #define flushq(qq) { \
! 193: register struct clist *q = qq; \
! 194: if (q->c_cc) \
! 195: ndflush(q, q->c_cc); \
! 196: }
! 197: /*
1.1 root 198: * Modem control commands (driver).
199: */
200: #define DMSET 0
201: #define DMBIS 1
202: #define DMBIC 2
203: #define DMGET 3
204:
205: #ifdef KERNEL
206: /* symbolic sleep message strings */
207: extern char ttyin[], ttyout[], ttopen[], ttclos[], ttybg[], ttybuf[];
1.1.1.3 ! root 208:
! 209: #ifdef __STDC__
! 210: struct uio;
! 211: #endif
! 212:
! 213: /* clist stuff */
! 214: void cinit __P((void));
! 215: int clalloc __P((struct clist *clp, int size, int quot));
! 216: void clfree __P((struct clist *clp));
! 217: int getc __P((struct clist *clp));
! 218: int q_to_b __P((struct clist *clp, u_char *cp, int count));
! 219: int ndqb __P((struct clist *clp, int flag));
! 220: void ndflush __P((struct clist *clp, int count));
! 221: int putc __P((int c, struct clist *clp));
! 222: int b_to_q __P((u_char *cp, int count, struct clist *clp));
! 223: u_char *nextc __P((struct clist *clp, u_char *cp, int *c));
! 224: u_char *firstc __P((struct clist *clp, int *c));
! 225: int unputc __P((struct clist *clp));
! 226: void catq __P((struct clist *from, struct clist *to));
! 227:
! 228: int ttioctl __P((struct tty *tp, int com, caddr_t data, int flag));
! 229: void ttsetwater __P((struct tty *tp));
! 230: void ttstart __P((struct tty *tp));
! 231: int ttspeedtab __P((int speed, struct speedtab *table));
! 232: void ttwakeup __P((struct tty *tp));
! 233: int ttnread __P((struct tty *tp));
! 234: int ttcompat __P((struct tty *tp, int com, caddr_t data, int flag));
! 235: void ttyrub __P((int c, struct tty *tp));
! 236: void ttyrubo __P((struct tty *tp, int cnt));
! 237: void ttyretype __P((struct tty *tp));
! 238: void ttyecho __P((int c, struct tty *tp));
! 239: void ttyoutstr __P((char *cp, struct tty *tp));
! 240: int ttywait __P((struct tty *tp));
! 241: void ttyflush __P((struct tty *tp, int rw));
! 242: void ttyblock __P((struct tty *tp));
! 243: void ttychars __P((struct tty *tp));
! 244: int ttyclose __P((struct tty *tp));
! 245: void ttypend __P((struct tty *tp));
! 246: int ttysleep __P((struct tty *tp, caddr_t chan, int pri,
! 247: char *wmesg, int timo));
! 248: void ttyinfo __P((struct tty *tp));
! 249:
! 250: struct tty *ttymalloc __P((void));
! 251: void ttyfree __P((struct tty *));
! 252:
! 253: int ttyopen __P((dev_t dev, struct tty *tp));
! 254: void ttylclose __P((struct tty *tp, int flag));
! 255: int ttread __P((struct tty *tp, struct uio *uio, int flag));
! 256: int ttwrite __P((struct tty *tp, struct uio *uio, int flag));
! 257: void ttyinput __P((int data, struct tty *tp));
! 258: void ttstart __P((struct tty *tp));
! 259: int ttymodem __P((struct tty *tp, int flag));
! 260:
! 261: /* XXX slip stuff for the line discipline init in tty_conf.c */
! 262: int slopen __P((dev_t dev, struct tty *tp));
! 263: void slclose __P((struct tty *tp, int flag));
! 264: int sltioctl __P((struct tty *vp, int cmd, caddr_t data, int flag));
! 265: void slinput __P((int data, struct tty *tp));
! 266: void slstart __P((struct tty *tp));
1.1 root 267: #endif
1.1.1.3 ! root 268:
! 269: #endif /* !_SYS_TTY_H_ */
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