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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
|
/****************************************************************************
******* *******
******* P H B H E A D E R *******
******* *******
****************************************************************************
Author : Ian Nandhra, Jeremy Rolls
Date :
*
* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Version : 0.01
Mods
----------------------------------------------------------------------------
Date By Description
----------------------------------------------------------------------------
***************************************************************************/
#ifndef _phb_h
#define _phb_h 1
#ifdef SCCS_LABELS
#ifndef lint
/* static char *_rio_phb_h_sccs = "@(#)phb.h 1.12"; */
#endif
#endif
/*************************************************
* Set the LIMIT values.
************************************************/
#ifdef RTA
#define RX_LIMIT (ushort) 3
#endif
#ifdef HOST
#define RX_LIMIT (ushort) 1
#endif
/*************************************************
* Handshake asserted. Deasserted by the LTT(s)
************************************************/
#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */
#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */
#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET)
/* Reset by ltt */
/*************************************************
* Maximum number of PHB's
************************************************/
#if defined (HOST) || defined (INKERNEL)
#define MAX_PHB ((ushort) 128) /* range 0-127 */
#else
#define MAX_PHB ((ushort) 8) /* range 0-7 */
#endif
/*************************************************
* Defines for the mode fields
************************************************/
#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */
#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */
#define TX_TAB3 0x0004 /* TAB3 mode */
#define TX_OCRNL 0x0008 /* OCRNL mode */
#define TX_ONLCR 0x0010 /* ONLCR mode */
#define TX_SENDSPACES 0x0020 /* Send n spaces command needs
completing */
#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */
#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */
#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
port */
#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL)
#define TX_DTRFLOW 0x0200 /* DTR tx flow control */
#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data
into the FIFO */
#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */
#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */
#define RX_SPARE 0x0001 /* SPARE */
#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */
#define RX_ICRNL 0x0008 /* ICRNL mode */
#define RX_INLCR 0x0010 /* INLCR mode */
#define RX_IGNCR 0x0020 /* IGNCR mode */
#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */
#define RX_IXOFF 0x0080 /* IXOFF enabled */
#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */
#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */
#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */
#define PORT_ISOPEN 0x0001 /* Port open? */
#define PORT_HUPCL 0x0002 /* Hangup on close? */
#define PORT_MOPENPEND 0x0004 /* Modem open pending */
#define PORT_ISPARALLEL 0x0008 /* Parallel port */
#define PORT_BREAK 0x0010 /* Port on break */
#define PORT_STATUSPEND 0x0020 /* Status packet pending */
#define PORT_BREAKPEND 0x0040 /* Break packet pending */
#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */
#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
port */
#define PORT_FULLMODEM 0x0200 /* Full modem signals */
#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */
#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */
#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */
#define PORT_WCLOSE 0x0800 /* Waiting for close */
#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */
#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */
#define DUMPMODE 0x4000 /* Dump RTA mem */
#define READ_REG 0x8000 /* Read CD1400 register */
/**************************************************************************
* PHB Structure
* A few words.
*
* Normally Packets are added to the end of the list and removed from
* the start. The pointer tx_add points to a SPACE to put a Packet.
* The pointer tx_remove points to the next Packet to remove
*************************************************************************/
#ifndef INKERNEL
#define src_unit u2.s2.unit
#define src_port u2.s2.port
#define dest_unit u1.s1.unit
#define dest_port u1.s1.port
#endif
#ifdef HOST
#define tx_start u3.s1.tx_start_ptr_ptr
#define tx_add u3.s1.tx_add_ptr_ptr
#define tx_end u3.s1.tx_end_ptr_ptr
#define tx_remove u3.s1.tx_remove_ptr_ptr
#define rx_start u4.s1.rx_start_ptr_ptr
#define rx_add u4.s1.rx_add_ptr_ptr
#define rx_end u4.s1.rx_end_ptr_ptr
#define rx_remove u4.s1.rx_remove_ptr_ptr
#endif
typedef struct PHB PHB ;
struct PHB {
#ifdef RTA
ushort port;
#endif
#ifdef INKERNEL
WORD source;
#else
union
{
ushort source; /* Complete source */
struct
{
unsigned char unit; /* Source unit */
unsigned char port; /* Source port */
} s2;
} u2;
#endif
WORD handshake ;
WORD status ;
NUMBER timeout ; /* Maximum of 1.9 seconds */
WORD link ; /* Send down this link */
#ifdef INKERNEL
WORD destination;
#else
union
{
ushort destination; /* Complete destination */
struct
{
unsigned char unit; /* Destination unit */
unsigned char port; /* Destination port */
} s1;
} u1;
#endif
#ifdef RTA
ushort tx_pkts_added;
ushort tx_pkts_removed;
Q_BUF_ptr tx_q_start ; /* Start of the Q list chain */
short num_tx_q_bufs ; /* Number of Q buffers in the chain */
PKT_ptr_ptr tx_add ; /* Add a new Packet here */
Q_BUF_ptr tx_add_qb; /* Pointer to the add Q buf */
PKT_ptr_ptr tx_add_st_qbb ; /* Pointer to start of the Q's buf */
PKT_ptr_ptr tx_add_end_qbb ; /* Pointer to the end of the Q's buf */
PKT_ptr_ptr tx_remove ; /* Remove a Packet here */
Q_BUF_ptr tx_remove_qb ; /* Pointer to the remove Q buf */
PKT_ptr_ptr tx_remove_st_qbb ; /* Pointer to the start of the Q buf */
PKT_ptr_ptr tx_remove_end_qbb ; /* Pointer to the end of the Q buf */
#endif
#ifdef INKERNEL
PKT_ptr_ptr tx_start ;
PKT_ptr_ptr tx_end ;
PKT_ptr_ptr tx_add ;
PKT_ptr_ptr tx_remove ;
#endif
#ifdef HOST
union
{
struct
{
PKT_ptr_ptr tx_start_ptr_ptr;
PKT_ptr_ptr tx_end_ptr_ptr;
PKT_ptr_ptr tx_add_ptr_ptr;
PKT_ptr_ptr tx_remove_ptr_ptr;
} s1;
struct
{
ushort * tx_start_ptr;
ushort * tx_end_ptr;
ushort * tx_add_ptr;
ushort * tx_remove_ptr;
} s2;
} u3;
#endif
#ifdef RTA
ushort rx_pkts_added;
ushort rx_pkts_removed;
Q_BUF_ptr rx_q_start ; /* Start of the Q list chain */
short num_rx_q_bufs ; /* Number of Q buffers in the chain */
PKT_ptr_ptr rx_add ; /* Add a new Packet here */
Q_BUF_ptr rx_add_qb ; /* Pointer to the add Q buf */
PKT_ptr_ptr rx_add_st_qbb ; /* Pointer to start of the Q's buf */
PKT_ptr_ptr rx_add_end_qbb ; /* Pointer to the end of the Q's buf */
PKT_ptr_ptr rx_remove ; /* Remove a Packet here */
Q_BUF_ptr rx_remove_qb ; /* Pointer to the remove Q buf */
PKT_ptr_ptr rx_remove_st_qbb ; /* Pointer to the start of the Q buf */
PKT_ptr_ptr rx_remove_end_qbb ; /* Pointer to the end of the Q buf */
#endif
#ifdef INKERNEL
PKT_ptr_ptr rx_start ;
PKT_ptr_ptr rx_end ;
PKT_ptr_ptr rx_add ;
PKT_ptr_ptr rx_remove ;
#endif
#ifdef HOST
union
{
struct
{
PKT_ptr_ptr rx_start_ptr_ptr;
PKT_ptr_ptr rx_end_ptr_ptr;
PKT_ptr_ptr rx_add_ptr_ptr;
PKT_ptr_ptr rx_remove_ptr_ptr;
} s1;
struct
{
ushort * rx_start_ptr;
ushort * rx_end_ptr;
ushort * rx_add_ptr;
ushort * rx_remove_ptr;
} s2;
} u4;
#endif
#ifdef RTA /* some fields for the remotes */
ushort flush_count; /* Count of write flushes */
ushort txmode; /* Modes for tx */
ushort rxmode; /* Modes for rx */
ushort portmode; /* Generic modes */
ushort column; /* TAB3 column count */
ushort tx_subscript; /* (TX) Subscript into data field */
ushort rx_subscript; /* (RX) Subscript into data field */
PKT_ptr rx_incomplete; /* Hold an incomplete packet here */
ushort modem_bits; /* Modem bits to mask */
ushort lastModem; /* Modem control lines. */
ushort addr; /* Address for sub commands */
ushort MonitorTstate; /* TRUE if monitoring tstop */
#endif
} ;
#endif
/*********** end of file ***********/
|
