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1.1 root 1: /* tty.h 6.1 83/07/29 */
2:
3: #ifdef KERNEL
4: #include "../h/ttychars.h"
5: #include "../h/ttydev.h"
6: #include "../tahoeif/sl_softc.h"
7:
8: #else
9: #include <sys/ttychars.h>
10: #include <sys/ttydev.h>
11: #include <tahoeif/sl_softc.h>
12: #endif
13:
14: /*
15: * A clist structure is the head of a linked list queue
16: * of characters. The characters are stored in blocks
17: * containing a link and CBSIZE (param.h) characters.
18: * The routines in tty_subr.c manipulate these structures.
19: */
20: struct clist {
21: int c_cc; /* character count */
22: char *c_cf; /* pointer to first char */
23: char *c_cl; /* pointer to last char */
24: };
25:
26: /*
27: * Per-tty structure.
28: *
29: * Should be split in two, into device and tty drivers.
30: * Glue could be masks of what to echo and circular buffer
31: * (low, high, timeout).
32: */
33: struct tty {
34: union {
35: struct {
36: struct clist T_rawq;
37: struct clist T_canq;
38: } t_t;
39: #define t_rawq t_nu.t_t.T_rawq /* raw characters or partial line */
40: #define t_canq t_nu.t_t.T_canq /* raw characters or partial line */
41: struct {
42: struct buf *T_bufp;
43: char *T_cp;
44: int T_inbuf;
45: int T_rec;
46: } t_n;
47: #define t_bufp t_nu.t_n.T_bufp /* buffer allocated to protocol */
48: #define t_cp t_nu.t_n.T_cp /* pointer into the ripped off buffer */
49: #define t_inbuf t_nu.t_n.T_inbuf /* number chars in the buffer */
50: #define t_rec t_nu.t_n.T_rec /* have a complete record */
51: } t_nu;
52: struct clist t_outq; /* device */
53: int (*t_oproc)(); /* device */
54: struct proc *t_rsel; /* tty */
55: struct proc *t_wsel;
56: caddr_t T_LINEP; /* ### */
57: caddr_t t_addr; /* ??? */
58: dev_t t_dev; /* device */
59: int t_flags; /* some of both */
60: int t_state; /* some of both */
61: short t_pgrp; /* tty */
62: char t_delct; /* tty */
63: char t_line; /* glue */
64: char t_col; /* tty */
65: char t_ispeed, t_ospeed; /* device */
66: char t_rocount, t_rocol; /* tty */
67: char t_stopbits; /* device */
68: struct ttychars t_chars; /* tty */
69: struct sl_softc *t_slsoftc; /* For network serial line interface */
70: /* be careful of tchars & co. */
71: #define t_erase t_chars.tc_erase
72: #define t_kill t_chars.tc_kill
73: #define t_intrc t_chars.tc_intrc
74: #define t_quitc t_chars.tc_quitc
75: #define t_startc t_chars.tc_startc
76: #define t_stopc t_chars.tc_stopc
77: #define t_eofc t_chars.tc_eofc
78: #define t_brkc t_chars.tc_brkc
79: #define t_suspc t_chars.tc_suspc
80: #define t_dsuspc t_chars.tc_dsuspc
81: #define t_rprntc t_chars.tc_rprntc
82: #define t_flushc t_chars.tc_flushc
83: #define t_werasc t_chars.tc_werasc
84: #define t_lnextc t_chars.tc_lnextc
85: };
86:
87: #define TTIPRI 28
88: #define TTOPRI 29
89:
90: /* limits */
91: #define NSPEEDS 16
92: #define TTMASK 15
93: #define OBUFSIZ 100
94: #define TTYHOG 255
95: #ifdef KERNEL
96: short tthiwat[NSPEEDS], ttlowat[NSPEEDS];
97: #define TTHIWAT(tp) tthiwat[(tp)->t_ospeed&TTMASK]
98: #define TTLOWAT(tp) ttlowat[(tp)->t_ospeed&TTMASK]
99: extern struct ttychars ttydefaults;
100: #endif
101:
102: /* internal state bits */
103: #define TS_TIMEOUT 0x000001 /* delay timeout in progress */
104: #define TS_WOPEN 0x000002 /* waiting for open to complete */
105: #define TS_ISOPEN 0x000004 /* device is open */
106: #define TS_FLUSH 0x000008 /* outq has been flushed during DMA */
107: #define TS_CARR_ON 0x000010 /* software copy of carrier-present */
108: #define TS_BUSY 0x000020 /* output in progress */
109: #define TS_ASLEEP 0x000040 /* wakeup when output done */
110: #define TS_XCLUDE 0x000080 /* exclusive-use flag against open */
111: #define TS_TTSTOP 0x000100 /* output stopped by ctl-s */
112: #define TS_HUPCLS 0x000200 /* hang up upon last close */
113: #define TS_TBLOCK 0x000400 /* tandem queue blocked */
114: #define TS_RCOLL 0x000800 /* collision in read select */
115: #define TS_WCOLL 0x001000 /* collision in write select */
116: #define TS_NBIO 0x002000 /* tty in non-blocking mode */
117: #define TS_ASYNC 0x004000 /* tty in async i/o mode */
118: /* state for intra-line fancy editing work */
119: #define TS_BKSL 0x010000 /* state for lowercase \ work */
120: #define TS_QUOT 0x020000 /* last character input was \ */
121: #define TS_ERASE 0x040000 /* within a \.../ for PRTRUB */
122: #define TS_LNCH 0x080000 /* next character is literal */
123: #define TS_TYPEN 0x100000 /* retyping suspended input (PENDIN) */
124: #define TS_CNTTB 0x200000 /* counting tab width; leave FLUSHO alone */
125:
126: #define TS_LOCAL (TS_BKSL|TS_QUOT|TS_ERASE|TS_LNCH|TS_TYPEN|TS_CNTTB)
127:
128: /* define partab character types */
129: #define ORDINARY 0
130: #define CONTROL 1
131: #define BACKSPACE 2
132: #define NEWLINE 3
133: #define TAB 4
134: #define VTAB 5
135: #define RETURN 6
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