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[unix-history] / usr / src / sys / news3400 / sio / sccreg.h
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af5295ff 1/*
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2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
af5295ff
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4 *
5 * This code is derived from software contributed to Berkeley by
6 * Sony Corp. and Kazumasa Utashiro of Software Research Associates, Inc.
7 *
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8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
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35 *
36 * from: $Hdr: sccreg.h,v 4.300 91/06/09 06:44:58 root Rel41 $ SONY
37 *
ad787160 38 * @(#)sccreg.h 8.1 (Berkeley) 6/11/93
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39 */
40
41#ifndef _SCCREG_
42#define _SCCREG_
43
44/*
45 * SCC register
46 */
47
48struct scc_reg {
49 u_char ctrl; /* control register */
50 u_char data; /* data register */
51};
52
53/*
54 * SCC read register
55 */
56
57#define RR0 0
58#define RR1 1
59#define RR2 2
60#define RR3 3
61#define RR10 10
62#define RR12 12
63#define RR13 13
64#define RR15 15
65
66#define R0_BREAK 0x80 /* Break/Abort */
67#define R0_UDRUN 0x40 /* Tx Underrun/EOM */
68#define R0_CTS 0x20 /* CTS */
69#define R0_SYNC 0x10 /* Sync/Hunt */
70#define R0_DCD 0x08 /* DCD */
71#define R0_TxBE 0x04 /* Tx buffer empty */
72#define R0_ZERO 0x02 /* Zero count */
73#define R0_RxCA 0x01 /* Rx char. available */
74
75#define R1_EOF 0x80 /* End Of Frame (SDLC) */
76#define R1_CRC 0x40 /* CRC/Framing Error */
77#define R1_OVRUN 0x20 /* Rx Overrun */
78#define R1_PARITY 0x10 /* Parity Error */
79#define R1_RESID 0x0e /* Residue code */
80#define R1_SENT 0x01 /* All sent */
81
82#define R3_RxA 0x20 /* Channel A Rx IP */
83#define R3_TxA 0x10 /* Channel A Tx IP */
84#define R3_EXTA 0x08 /* Channel A EXT/STAT */
85#define R3_RxB 0x20 /* Channel B Rx IP */
86#define R3_TxB 0x10 /* Channel B Tx IP */
87#define R3_EXTB 0x08 /* Channel B EXT/STAT */
88
89#define R10_ONEC 0x80 /* One clock missing */
90#define R10_TWOC 0x40 /* Two clock missing */
91#define R10_LOOP 0x10 /* Loop Sending */
92#define R10_ONLOOP 0x02 /* On Loop */
93
94#define R15_BREAK 0x80 /* Break/Abort IE */
95#define R15_UDRUN 0x40 /* Tx Underrun IE */
96#define R15_CTS 0x20 /* CTS IE */
97#define R15_SYNC 0x10 /* Sync/Hunt IE */
98#define R15_DCD 0x08 /* DCD IE */
99#define R15_ZERO 0x02 /* Zero count IE */
100
101/*
102 * SCC write register
103 */
104
105#define WR0 0
106#define WR1 1
107#define WR2 2
108#define WR3 3
109#define WR4 4
110#define WR5 5
111#define WR6 6
112#define WR7 7
113#define WR9 9
114#define WR10 10
115#define WR11 11
116#define WR12 12
117#define WR13 13
118#define WR14 14
119#define WR15 15
120
121#define W0_RES_UDRUN 0xc0 /* Reset Tx Underrun/EOM */
122#define W0_RES_TxCRC 0x80 /* Reset Tx CRC generator */
123#define W0_RES_RxCRC 0x40 /* Reset Rx CRC checker */
124#define W0_RES_IUS 0x38 /* Reset Highest IUS */
125#define W0_RES_ERROR 0x30 /* Error reset */
126#define W0_RES_TxINT 0x28 /* Reset TxINT pending */
127#define W0_RxINTE 0x20 /* Enable RxINT on next char. */
128#define W0_SND_ABORT 0x18 /* Send Abort (SDLC) */
129#define W0_RES_EXT 0x10 /* Reset EXT/STAT interrupts */
130
131#define W1_EN_WAIT 0x80 /* WAIT/DMA request enable */
132#define W1_WAIT_FUNC 0x40 /* WAIT/DMA request function */
133#define W1_WAIT_REQ 0x20 /* WAIT/DMA request on Rx/Tx */
134
135#define W1_RxINT_SC 0x18 /* Rx INT on special condition */
136#define W1_RxINT_ALL 0x10 /* Rx INT on all character */
137#define W1_RxINT_FRST 0x08 /* Rx INT on first character */
138#define W1_PARITY 0x04 /* Parity is special condition */
139#define W1_TxINTE 0x02 /* Tx INT enable */
140#define W1_EXTINTE 0x01 /* EXT INT enable */
141
142#define W3_Rx8BIT 0xc0 /* Rx 8 bits/character */
143#define W3_Rx6BIT 0x80 /* Rx 6 bits/character */
144#define W3_Rx7BIT 0x40 /* Rx 7 bits/character */
145#define W3_Rx5BIT 0x00 /* Rx 5 bits/character */
146
147#define W3_AUTO 0x20 /* Auto enable */
148#define W3_HUNT 0x10 /* Enter Hunt mode */
149#define W3_RxCRC 0x08 /* Rx CRC enable */
150#define W3_ADDR 0x04 /* Address search mode (SDLC) */
151#define W3_SYNCI 0x02 /* Sync char. load inhibit */
152#define W3_RxE 0x01 /* Rx enable */
153
154#define W4_X64 0xc0 /* X64 clock mode */
155#define W4_X32 0x80 /* X32 clock mode */
156#define W4_X16 0x40 /* X16 clock mode */
157#define W4_X1 0x00 /* X1 clock mode */
158
159#define W4_EXTSYNC 0x30 /* External Sync mode */
160#define W4_SDLC 0x20 /* SDLC mode */
161#define W4_SYNC16 0x10 /* 16 bit sync character */
162#define W4_SYNC8 0x00 /* 8 bit sync character */
163
164#define W4_STOP2 0x0c /* 2 stop bits/character */
165#define W4_STOP1_5 0x08 /* 1.5 stop bits/character */
166#define W4_STOP1 0x04 /* 1 stop bit/character */
167#define W4_SYNC 0x00 /* Sync mode enable */
168
169#define W4_EVEN 0x02 /* Parity Even */
170#define W4_PARITY 0x01 /* Parity enable */
171
172#define W5_DTR 0x80 /* DTR */
173
174#define W5_Tx8BIT 0x60 /* Tx 8 bits/character */
175#define W5_Tx6BIT 0x40 /* Tx 6 bits/character */
176#define W5_Tx7BIT 0x20 /* Tx 7 bits/character */
177#define W5_Tx5BIT 0x00 /* Tx 5 bits/character */
178
179#define W5_BREAK 0x10 /* Send Break */
180#define W5_TxE 0x08 /* Tx enable */
181#define W5_CRC16 0x04 /* SDLC/CRC-16 */
182#define W5_RTS 0x02 /* RTS */
183#define W5_TxCRC 0x01 /* Tx CRC enable */
184
185#define W9_RESET 0xc0 /* Force hardware reset */
186#define W9_RES_A 0x80 /* Channel reset A */
187#define W9_RES_B 0x40 /* Channel reset B */
188
189#define W9_STAT_HIGH 0x10 /* Staus High/Low */
190#define W9_MIE 0x08 /* Master Int. enable */
191#define W9_DLC 0x04 /* Disable lower chain */
192#define W9_NV 0x02 /* Non Vector */
193#define W9_VIS 0x01 /* Vector Include Status */
194
195#define W10_CRC_PRESET 0x80 /* CRC preset I/O */
196
197#define W10_FM0 0x60 /* FM0 (transition = 0) */
198#define W10_FM1 0x40 /* FM1 (transition = 1) */
199#define W10_NRZI 0x20 /* NRZI */
200#define W10_NRZ 0x00 /* NRZ */
201
202#define W10_POLL 0x10 /* Go active on poll */
203#define W10_MARK 0x08 /* Mark/Flag idle */
204#define W10_ABORT 0x04 /* Abort/Flag on underrun */
205#define W10_LOOP 0x02 /* Loop mode */
206#define W10_SYNC6 0x01 /* 6 bit/8 bit sync */
207
208#define W11_RTxC_XTAL 0x80 /* RTxC Xtal */
209
210#define W11_RxC_DPLL 0x60 /* RxC = DPLL output */
211#define W11_RxC_BRG 0x40 /* RxC = BR Gen. output */
212#define W11_RxC_TRxC 0x20 /* RxC = TRxC pin */
213#define W11_RxC_RTxC 0x00 /* RxC = RTxC pin */
214
215#define W11_TxC_DPLL 0x18 /* TxC = DPLL output */
216#define W11_TxC_BRG 0x10 /* TxC = BR Gen. output */
217#define W11_TxC_TRxC 0x08 /* TxC = TRxC pin */
218#define W11_TxC_RTxC 0x00 /* TxC = RTxC pin */
219
220#define W11_TRxC_O 0x04 /* TRxC O/I */
221
222#define W11_TRxC_DPLL 0x03 /* TRxC = DPLL output */
223#define W11_TRxC_BRG 0x02 /* TRxC = BR Gen output */
224#define W11_TRxC_TxC 0x01 /* TRxC = Transmit clock */
225#define W11_TRxC_XTAL 0x00 /* TRxC = Xtal output */
226
227#define W14_NRZI 0xe0 /* Set NRZI mode */
228#define W14_FM 0xc0 /* Set FM mode */
229#define W14_RTxC 0xa0 /* Set source = RTxC */
230#define W14_BRG 0x80 /* Set source = BR Gen. */
231#define W14_DIS_DPLL 0x60 /* Disable DPLL */
232#define W14_RES_CLK 0x40 /* Reset missing clock */
233#define W14_SEARCH 0x20 /* Enter search mode */
234
235#define W14_LOCAL 0x10 /* Local loopback mode */
236#define W14_ECHO 0x08 /* Auto echo */
237#define W14_DTR 0x04 /* DTR/Request function */
238#define W14_BRG_SRC 0x02 /* BR Gen. source */
239#define W14_BRGE 0x01 /* BR Gen. enable */
240
241#define W15_BREAK 0x80 /* Break/Abort IE */
242#define W15_UDRUN 0x40 /* Tx underrun/EOM IE */
243#define W15_CTS 0x20 /* CTS IE */
244#define W15_SYNC 0x10 /* Sync/Hunt IE */
245#define W15_DCD 0x08 /* DCD IE */
246#define W15_ZERO 0x02 /* Zero count IE */
247
248#endif /* _SCCREG_ */