1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _TTYMUX_IMPL_H
#define _TTYMUX_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types32.h>
#include <sys/param.h>
/*
* Local definitions.
*/
#define SM_TRBIT(code) (1 << (code)-'@')
extern uint_t sm_max_units;
#define MAX_LQS (sm_max_units)
#define NLUNITS (MAX_LQS + 2)
/*
* Re-use minor device encoding used by the se(7D) driver.
*/
#define ASYNC_DEVICE (0)
#define OUTLINE (1 << (NBITSMINOR32 - 1))
#define NULL_PROTOCOL 0
#define ASYN_PROTOCOL 1
#define OUTD_PROTOCOL 2
#define DEV_TO_UNIT(dev) (getminor(dev) & ~OUTLINE)
#define DEV_TO_PROTOBITS(dev) (getminor(dev) & OUTLINE)
/*
* Driver id
*/
#define SM_MOD_ID 0x534d
/*
* Access modes of the two halves to each others flags
* Q uq->flags lq->flags
* uq rw r
* lq - rw
*/
/*
* A lower queue is associated with an upper queue
* (used for synchronising dissasociate reqests with the lower half)
* A lower q will not forward messages if SM_UQVALID is set in uqflags.
*/
#define SM_UQVALID (0x1) /* written by an upper q read by a lower q */
#define SM_OBPCNDEV (0x2) /* set when this device is an OBP console */
/*
* unused flags
*/
#define FLUSHR_PEND (0x1) /* M_FLUSH is expected on all the lr q's */
/*
* An open has completed on this stream.
*/
#define FULLY_OPEN (0x2)
#define EXCL_OPEN (0x4)
#define SM_CARON (0x8)
/*
* Flags to disable queues controlled from below.
*/
#define HANGUP_MODE (0x10) /* not used (sets WERROR_MODE instead) */
#define RERROR_MODE (0x20) /* read error on stream (unset by closing) */
#define WERROR_MODE (0x40) /* write side error on the stream (set by */
/* M_HANGUP/M_ERROR */
/* unset by M_UNHANGUP/M_ERROR) */
#define ERROR_MODE (0x60) /* read error on stream (unset by M_ERROR) */
/*
* Flags to disable queues controlled from above.
* Also used by set on queues which are OBP consoles
*/
#define SM_STOPPED (0x080) /* M_STOP has been seen */
#define SM_ISTOPPED (0x100) /* M_STOPI has been seen */
/*
* A stream wants something.
*/
#define WANT_SC (0x200) /* carrier status of a stream required */
#define WANT_CL (0x400) /* CLOCAL status of a stream required */
#define WANT_CD (0x800) /* CD modem status of a line required */
#define WANT_CDSTAT (0xe00)
#define WANT_TCSET (0x20000) /* send down initial termios settings */
#define WANT_RENB (0x40000) /* read q is flowcontrolled */
#define SM_IOCPENDING (0x80000)
#define SM_CLOSE (0x100000)
#define SM_INTERNALIOC (0x200000)
#define SM_LOGINREQ (0x400000)
#define LOCK_UNIT(u) (mutex_enter(u->sm_umutex)) /* Lock per-stream data */
#define UNLOCK_UNIT(u) (mutex_exit(u->sm_umutex)) /* Unlock per-stream data */
/*
* Checks whether an open could potentially block.
*/
#define BLOCKING(unitp, proto, flag) \
(!(flag & (FNDELAY|FNONBLOCK)) && \
!(proto == OUTLINE) && \
unitp->sm_lqs && \
(unitp->sm_flags & SM_CARON) == 0)
/*
* Update termios style control flag with a termio style flag.
*/
#define SM_SETCFLAG(qi, tc) \
qi->sm_ttycommon->t_cflag = \
(qi->sm_ttycommon->t_cflag & 0xffff0000 | (tc)->c_cflag)
#define SM_SETLFLAG(qi, tc) \
qi->sm_ttycommon->t_iflag = \
(qi->sm_ttycommon->t_iflag & 0xffff0000 | (tc)->c_iflag)
#define SM_WQ(qi) (qi->sm_ttycommon->t_writeq)
#define SM_RQ(qi) (qi->sm_ttycommon->t_readq)
/*
*
*/
struct sm_iocinfo {
int sm_id;
int sm_cmd;
void *sm_data;
};
/*
* Perform a per instance search for a specified per stream structure.
*/
#define get_lqi(ssp, unit) \
((unit < MAX_LQS) ? &ssp->sm_lqs[unit] : 0)
#define get_uqi(ssp, unit) \
((unit < NLUNITS) ? &ssp->sm_uqs[unit] : NULL)
#define CNTRL(c) ((c)&037)
#define sm_allocb(size, pri) allocb(size, pri)
#define sm_copymsg(mp) ((DB_TYPE(mp) == M_DATA) ? dupmsg(mp) : copymsg(mp))
#define sm_freemsg(mp) freemsg(mp)
/*
* macro to improve performance. The cond is checked before deciding whether
* to create a new stack frame for the debug call
* Calls to sm_dbg should not occur in hanging statements - alternatively
* bracket SM_CMD with a do .... while (0)
*/
#define SM_CMD(cond, stmt) { if (cond) stmt; }
#define sm_dbg(lvl, args) SM_CMD(sm_ssp->sm_trflag & SM_TRBIT(lvl), \
sm_debug args)
#define SM_SLOT_RED 3
#define SM_MAX_SLOT_WAIT 3
#define sm_dev2unit(dev) (getminor(dev) & ~OUTLINE)
#define LQI2ASSOC(a, l) \
(a)->ttymux_linkid = (l)->sm_linkid; \
(a)->ttymux_tag = (l)->sm_tag; \
(a)->ttymux_ioflag = (l)->sm_ioflag; \
(a)->ttymux_ldev = (l)->sm_dev; \
(a)->ttymux_udev = ((l)->sm_uqi == 0) ? NODEV : \
makedevice(ddi_driver_major(sm_ssp->sm_dip), \
(l)->sm_uqi->sm_lunit); \
(void) strncpy((a)->ttymux_path, (l)->sm_path, MAXPATHLEN)
#define LQI2ASSOC32(a, l) \
(a)->ttymux32_linkid = (l)->sm_linkid; \
(a)->ttymux32_tag = (uint32_t)(l)->sm_tag; \
(a)->ttymux32_ioflag = (l)->sm_ioflag; \
(void) cmpldev(&(a)->ttymux32_ldev, (l)->sm_dev);\
(a)->ttymux32_udev = ((l)->sm_uqi == 0) ? NODEV32 : \
((void) cmpldev(&(a)->ttymux32_udev, \
makedevice(ddi_driver_major(sm_ssp->sm_dip), \
(l)->sm_uqi->sm_lunit)), \
(a)->ttymux32_udev); \
(void) strncpy((a)->ttymux32_path, (l)->sm_path, MAXPATHLEN)
#define CNTRL(c) ((c)&037)
/*
* 32 bit eqivalents of structures defined in sys/ttymuxuser.h
*/
typedef struct ttymux_association32 {
dev32_t ttymux32_udev; /* the upper device to be associated */
dev32_t ttymux32_ldev;
/* the device type of a linked lower stream */
int ttymux32_linkid;
/* the linkid of a linked lower stream */
uint32_t ttymux32_tag; /* tagged association */
uint_t ttymux32_ioflag; /* FORINPUT FOROUTPUT FORIO */
char ttymux32_path[MAXPATHLEN]; /* device path */
} ttymux_assoc32_t;
typedef struct ttymux_associations32 {
uint32_t ttymux32_nlinks;
caddr32_t ttymux32_assocs;
} ttymux_assocs32_t;
#ifdef __cplusplus
}
#endif
#endif /* _TTYMUX_IMPL_H */
|
