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-rw-r--r--drivers/char/rio/phb.h293
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diff --git a/drivers/char/rio/phb.h b/drivers/char/rio/phb.h
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1/****************************************************************************
2 ******* *******
3 ******* P H B H E A D E R *******
4 ******* *******
5 ****************************************************************************
6
7 Author : Ian Nandhra, Jeremy Rolls
8 Date :
9
10 *
11 * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27 Version : 0.01
28
29
30 Mods
31 ----------------------------------------------------------------------------
32 Date By Description
33 ----------------------------------------------------------------------------
34
35 ***************************************************************************/
36
37#ifndef _phb_h
38#define _phb_h 1
39
40#ifdef SCCS_LABELS
41#ifndef lint
42/* static char *_rio_phb_h_sccs = "@(#)phb.h 1.12"; */
43#endif
44#endif
45
46
47 /*************************************************
48 * Set the LIMIT values.
49 ************************************************/
50#ifdef RTA
51#define RX_LIMIT (ushort) 3
52#endif
53#ifdef HOST
54#define RX_LIMIT (ushort) 1
55#endif
56
57
58/*************************************************
59 * Handshake asserted. Deasserted by the LTT(s)
60 ************************************************/
61#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */
62
63#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */
64
65#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET)
66 /* Reset by ltt */
67
68
69/*************************************************
70 * Maximum number of PHB's
71 ************************************************/
72#if defined (HOST) || defined (INKERNEL)
73#define MAX_PHB ((ushort) 128) /* range 0-127 */
74#else
75#define MAX_PHB ((ushort) 8) /* range 0-7 */
76#endif
77
78/*************************************************
79 * Defines for the mode fields
80 ************************************************/
81#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */
82#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */
83#define TX_TAB3 0x0004 /* TAB3 mode */
84#define TX_OCRNL 0x0008 /* OCRNL mode */
85#define TX_ONLCR 0x0010 /* ONLCR mode */
86#define TX_SENDSPACES 0x0020 /* Send n spaces command needs
87 completing */
88#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */
89#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */
90#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
91 port */
92#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL)
93#define TX_DTRFLOW 0x0200 /* DTR tx flow control */
94#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data
95 into the FIFO */
96#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */
97#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */
98
99#define RX_SPARE 0x0001 /* SPARE */
100#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */
101#define RX_ICRNL 0x0008 /* ICRNL mode */
102#define RX_INLCR 0x0010 /* INLCR mode */
103#define RX_IGNCR 0x0020 /* IGNCR mode */
104#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */
105#define RX_IXOFF 0x0080 /* IXOFF enabled */
106#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */
107#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */
108#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */
109
110#define PORT_ISOPEN 0x0001 /* Port open? */
111#define PORT_HUPCL 0x0002 /* Hangup on close? */
112#define PORT_MOPENPEND 0x0004 /* Modem open pending */
113#define PORT_ISPARALLEL 0x0008 /* Parallel port */
114#define PORT_BREAK 0x0010 /* Port on break */
115#define PORT_STATUSPEND 0x0020 /* Status packet pending */
116#define PORT_BREAKPEND 0x0040 /* Break packet pending */
117#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */
118#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
119 port */
120#define PORT_FULLMODEM 0x0200 /* Full modem signals */
121#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */
122#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */
123
124#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */
125
126#define PORT_WCLOSE 0x0800 /* Waiting for close */
127#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */
128#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */
129#define DUMPMODE 0x4000 /* Dump RTA mem */
130#define READ_REG 0x8000 /* Read CD1400 register */
131
132
133
134/**************************************************************************
135 * PHB Structure
136 * A few words.
137 *
138 * Normally Packets are added to the end of the list and removed from
139 * the start. The pointer tx_add points to a SPACE to put a Packet.
140 * The pointer tx_remove points to the next Packet to remove
141 *************************************************************************/
142#ifndef INKERNEL
143#define src_unit u2.s2.unit
144#define src_port u2.s2.port
145#define dest_unit u1.s1.unit
146#define dest_port u1.s1.port
147#endif
148#ifdef HOST
149#define tx_start u3.s1.tx_start_ptr_ptr
150#define tx_add u3.s1.tx_add_ptr_ptr
151#define tx_end u3.s1.tx_end_ptr_ptr
152#define tx_remove u3.s1.tx_remove_ptr_ptr
153#define rx_start u4.s1.rx_start_ptr_ptr
154#define rx_add u4.s1.rx_add_ptr_ptr
155#define rx_end u4.s1.rx_end_ptr_ptr
156#define rx_remove u4.s1.rx_remove_ptr_ptr
157#endif
158typedef struct PHB PHB ;
159struct PHB {
160#ifdef RTA
161 ushort port;
162#endif
163#ifdef INKERNEL
164 WORD source;
165#else
166 union
167 {
168 ushort source; /* Complete source */
169 struct
170 {
171 unsigned char unit; /* Source unit */
172 unsigned char port; /* Source port */
173 } s2;
174 } u2;
175#endif
176 WORD handshake ;
177 WORD status ;
178 NUMBER timeout ; /* Maximum of 1.9 seconds */
179 WORD link ; /* Send down this link */
180#ifdef INKERNEL
181 WORD destination;
182#else
183 union
184 {
185 ushort destination; /* Complete destination */
186 struct
187 {
188 unsigned char unit; /* Destination unit */
189 unsigned char port; /* Destination port */
190 } s1;
191 } u1;
192#endif
193#ifdef RTA
194 ushort tx_pkts_added;
195 ushort tx_pkts_removed;
196 Q_BUF_ptr tx_q_start ; /* Start of the Q list chain */
197 short num_tx_q_bufs ; /* Number of Q buffers in the chain */
198 PKT_ptr_ptr tx_add ; /* Add a new Packet here */
199 Q_BUF_ptr tx_add_qb; /* Pointer to the add Q buf */
200 PKT_ptr_ptr tx_add_st_qbb ; /* Pointer to start of the Q's buf */
201 PKT_ptr_ptr tx_add_end_qbb ; /* Pointer to the end of the Q's buf */
202 PKT_ptr_ptr tx_remove ; /* Remove a Packet here */
203 Q_BUF_ptr tx_remove_qb ; /* Pointer to the remove Q buf */
204 PKT_ptr_ptr tx_remove_st_qbb ; /* Pointer to the start of the Q buf */
205 PKT_ptr_ptr tx_remove_end_qbb ; /* Pointer to the end of the Q buf */
206#endif
207#ifdef INKERNEL
208 PKT_ptr_ptr tx_start ;
209 PKT_ptr_ptr tx_end ;
210 PKT_ptr_ptr tx_add ;
211 PKT_ptr_ptr tx_remove ;
212#endif
213#ifdef HOST
214 union
215 {
216 struct
217 {
218 PKT_ptr_ptr tx_start_ptr_ptr;
219 PKT_ptr_ptr tx_end_ptr_ptr;
220 PKT_ptr_ptr tx_add_ptr_ptr;
221 PKT_ptr_ptr tx_remove_ptr_ptr;
222 } s1;
223 struct
224 {
225 ushort * tx_start_ptr;
226 ushort * tx_end_ptr;
227 ushort * tx_add_ptr;
228 ushort * tx_remove_ptr;
229 } s2;
230 } u3;
231#endif
232
233#ifdef RTA
234 ushort rx_pkts_added;
235 ushort rx_pkts_removed;
236 Q_BUF_ptr rx_q_start ; /* Start of the Q list chain */
237 short num_rx_q_bufs ; /* Number of Q buffers in the chain */
238 PKT_ptr_ptr rx_add ; /* Add a new Packet here */
239 Q_BUF_ptr rx_add_qb ; /* Pointer to the add Q buf */
240 PKT_ptr_ptr rx_add_st_qbb ; /* Pointer to start of the Q's buf */
241 PKT_ptr_ptr rx_add_end_qbb ; /* Pointer to the end of the Q's buf */
242 PKT_ptr_ptr rx_remove ; /* Remove a Packet here */
243 Q_BUF_ptr rx_remove_qb ; /* Pointer to the remove Q buf */
244 PKT_ptr_ptr rx_remove_st_qbb ; /* Pointer to the start of the Q buf */
245 PKT_ptr_ptr rx_remove_end_qbb ; /* Pointer to the end of the Q buf */
246#endif
247#ifdef INKERNEL
248 PKT_ptr_ptr rx_start ;
249 PKT_ptr_ptr rx_end ;
250 PKT_ptr_ptr rx_add ;
251 PKT_ptr_ptr rx_remove ;
252#endif
253#ifdef HOST
254 union
255 {
256 struct
257 {
258 PKT_ptr_ptr rx_start_ptr_ptr;
259 PKT_ptr_ptr rx_end_ptr_ptr;
260 PKT_ptr_ptr rx_add_ptr_ptr;
261 PKT_ptr_ptr rx_remove_ptr_ptr;
262 } s1;
263 struct
264 {
265 ushort * rx_start_ptr;
266 ushort * rx_end_ptr;
267 ushort * rx_add_ptr;
268 ushort * rx_remove_ptr;
269 } s2;
270 } u4;
271#endif
272
273#ifdef RTA /* some fields for the remotes */
274 ushort flush_count; /* Count of write flushes */
275 ushort txmode; /* Modes for tx */
276 ushort rxmode; /* Modes for rx */
277 ushort portmode; /* Generic modes */
278 ushort column; /* TAB3 column count */
279 ushort tx_subscript; /* (TX) Subscript into data field */
280 ushort rx_subscript; /* (RX) Subscript into data field */
281 PKT_ptr rx_incomplete; /* Hold an incomplete packet here */
282 ushort modem_bits; /* Modem bits to mask */
283 ushort lastModem; /* Modem control lines. */
284 ushort addr; /* Address for sub commands */
285 ushort MonitorTstate; /* TRUE if monitoring tstop */
286#endif
287
288 } ;
289
290#endif
291
292/*********** end of file ***********/
293
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