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1.1 root 1: /*
2: * Copyright (c) 1988 University of Utah.
3: * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
4: * All rights reserved.
5: *
6: * This code is derived from software contributed to Berkeley by
7: * the Systems Programming Group of the University of Utah Computer
8: * Science Department.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: *
38: * from: Utah $Hdr: dcmreg.h 1.1 90/07/09$
39: *
40: * @(#)dcmreg.h 7.4 (Berkeley) 11/4/90
41: */
42:
43: struct dcmdevice { /* host address, only odd bytes addressed */
44: u_char dcm_pad0;
45: volatile u_char dcm_rsid; /* Reset / ID 0001 */
46: u_char dcm_pad1;
47: volatile u_char dcm_ic; /* Interrupt control register 0003 */
48: u_char dcm_pad2;
49: volatile u_char dcm_sem; /* Semaphore register 0005 */
50: u_char dcm_pad3[0x7ffa]; /* Unaddressable 0006-7fff */
51: u_char dcm_pad4;
52: volatile u_char dcm_iir; /* Interrupt ident register 8001 */
53: u_char dcm_pad5;
54: volatile u_char dcm_cr; /* Command register 8003 */
55: u_char dcm_pad6[0x3fc]; /* Card scratch 8004-83ff */
56: struct dcmrfifo {
57: u_char ptr_pad1;
58: volatile u_char data_char;
59: u_char ptr_pad2;
60: volatile u_char data_stat;
61: } dcm_rfifos[4][0x80]; /* Receive queues 8400 */
62: struct {
63: u_char ptr_pad1;
64: volatile u_char data_data;
65: } dcm_bmap[0x100]; /* Bitmap table 8c00 */
66: struct {
67: u_char ptr_pad;
68: volatile u_char ptr;
69: } dcm_rhead[4]; /* Fifo head - receive 8e00 */
70: struct {
71: u_char ptr_pad;
72: volatile u_char ptr;
73: } dcm_rtail[4]; /* Fifo tail - receive 8e08 */
74: struct {
75: u_char ptr_pad;
76: volatile u_char ptr;
77: } dcm_thead[4]; /* Fifo head - transmit 8e10 */
78: struct {
79: u_char ptr_pad;
80: volatile u_char ptr;
81: } dcm_ttail[4]; /* Fifo tail - transmit 8e18 */
82: struct {
83: u_char pad1;
84: volatile u_char dcm_conf;
85: u_char pad2;
86: volatile u_char dcm_baud;
87: } dcm_data[4]; /* Configuration registers 8e20 */
88: struct modemreg {
89: u_char pad0;
90: volatile u_char mdmin; /* Modem in 8e31 */
91: u_char pad1;
92: volatile u_char mdmout; /* Modem out 8e33 */
93: u_char pad2;
94: volatile u_char mdmmsk; /* Modem mask 8e35 */
95: } dcm_modem0;
96: struct {
97: u_char pad1;
98: volatile u_char dcm_data;
99: } dcm_cmdtab[4]; /* Command tables 8e36 */
100: struct {
101: u_char pad1;
102: volatile u_char dcm_data;
103: } dcm_icrtab[4]; /* Interrupt data 8e3e */
104: u_char dcm_pad10;
105: volatile u_char dcm_stcon; /* Self test condition 8e47 */
106: struct modemreg dcm_modem1; /* 638 Modem port1 8e48 */
107: struct modemreg dcm_modem2; /* 638 Modem port2 8e4e */
108: struct modemreg dcm_modem3; /* 638 Modem port3 8e54 */
109: u_char dcm_pad11;
110: volatile u_char dcm_modemchng; /* 638 Modem change mask 8e5b */
111: u_char dcm_pad12;
112: volatile u_char dcm_modemintr; /* 638 Modem interrupt mask 8e5d */
113: u_char dcm_pad13[0x82]; /* Undef Shared Ram 8e5e-8edf */
114: struct dcmtfifo {
115: u_char ptr_pad1;
116: volatile u_char data_char;
117: } dcm_tfifos[4][0x10]; /* Transmit queues 8ee0 */
118: };
119:
120: /*
121: * Overlay structure for port specific queue "registers".
122: * Starts at offset 0x8E00+(port*2).
123: */
124: struct dcmpreg {
125: u_char pad0; /* +00 */
126: volatile u_char r_head; /* +01 */
127: u_char pad1[7]; /* +02 */
128: volatile u_char r_tail; /* +09 */
129: u_char pad2[7]; /* +0A */
130: volatile u_char t_head; /* +11 */
131: u_char pad3[7]; /* +12 */
132: volatile u_char t_tail; /* +19 */
133: };
134: #define dcm_preg(d, p) ((struct dcmpreg *)((u_int)(d)+0x8e00+(p)*2))
135:
136: /* interface reset/id */
137: #define DCMCON 0x80 /* REMOTE/LOCAL switch, read */
138: #define DCMID 0x5 /* hardwired card id, read */
139: #define DCMRS 0x80 /* software reset, write */
140:
141: /* interrupt control */
142: #define DCMIPL(x) ((((x) >> 4) & 3) + 3) /* interupt level, read */
143: #define IC_IR 0x40 /* interupt request, read */
144: #define IC_IE 0x80 /* interupt enable, write */
145: #define IC_ID 0x00 /* interupt disable, write */
146:
147:
148: /* Semaphore control */
149: #define SEM_BSY 0x80 /* read */
150: #define SEM_CLR 0xFF /* write */
151: #define SEM_LOCK(dcm) while ((dcm)->dcm_sem & SEM_BSY)
152: #define SEM_UNLOCK(dcm) (dcm)->dcm_sem = SEM_CLR
153:
154: /* command register */
155: #define CR_PORT0 0x1
156: #define CR_PORT1 0x2
157: #define CR_PORT2 0x4
158: #define CR_PORT3 0x8
159: #define CR_MODM 0x10 /* change modem output lines */
160: #define CR_TIMER 0x20 /* 16ms interrupt timer toggle */
161: #define CR_SELFT 0x40 /* run self test */
162: #define CR_MASK 0x7f
163:
164: /* interrupt ident register */
165: #define IIR_PORT0 0x1
166: #define IIR_PORT1 0x2
167: #define IIR_PORT2 0x4
168: #define IIR_PORT3 0x8
169: #define IIR_SELFT 0x10 /* self test completed */
170: #define IIR_MODM 0x20 /* change in modem input lines */
171: #define IIR_TIMEO 0x40 /* Time out */
172: #define IIR_MASK 0x7f
173:
174: /* self test cond reg */
175: #define ST_OK 0xe0
176:
177: /* Line configuration register */
178: #define LC_PNO 0x00
179: #define LC_PODD 0x01
180: #define LC_PEVEN 0x02
181: #define LC_PMSK 0x03
182:
183: #define LC_1STOP 0x00
184: #define LC_1HSTOP 0x04
185: #define LC_2STOP 0x08
186: #define LC_STOPMSK 0x0b
187:
188: #define LC_8BITS 0x30
189: #define LC_7BITS 0x20
190: #define LC_6BITS 0x10
191: #define LC_5BITS 0x00
192: #define LC_BITMSK 0x30
193:
194: /* baud reg */
195: #define BR_0 0x00
196: #define BR_50 0x01
197: #define BR_75 0x02
198: #define BR_110 0x03
199: #define BR_134 0x04
200: #define BR_150 0x05
201: #define BR_300 0x06
202: #define BR_600 0x07
203: #define BR_900 0x08
204: #define BR_1200 0x09
205: #define BR_1800 0x0a
206: #define BR_2400 0x0b
207: #define BR_3600 0x0c
208: #define BR_4800 0x0d
209: #define BR_7200 0x0e
210: #define BR_9600 0x0f
211: #define BR_19200 0x10
212: #define BR_38400 0x11
213:
214: /* modem input register */
215: #define MI_CTS 0x08
216: #define MI_DM 0x04
217: #define MI_CD 0x02
218: #define MI_RI 0x01
219:
220: /* modem output register */
221: #define MO_SR 0x04
222: #define MO_DTR 0x02
223: #define MO_RTS 0x01
224: #define MO_ON ((MO_DTR) | (MO_RTS))
225: #define MO_OFF 0x00
226:
227: /* cmd-tab values, write */
228: #define CT_CON 0x1 /* configuration change */
229: #define CT_TX 0x2 /* transmit buffer not empty */
230: #define CT_BRK 0x4 /* toggle BREAK */
231:
232: /* icr-tab values, read */
233: #define IT_TX 0x1 /* transmit buffer empty */
234: #define IT_SPEC 0x2 /* special character received */
235:
236: /* data errors */
237: #define RD_OVF 0x08
238: #define RD_BD 0x10
239: #define RD_PE 0x20
240: #define RD_OE 0x40
241: #define RD_FE 0x80
242: #define RD_MASK 0xf8
243:
244: /* Transmit/Receive masks */
245: #define TX_MASK 0x0f
246: #define RX_MASK 0xff
247:
248: /*
249: * WARNING: Serial console is assumed to be the lowest select-code card
250: * and that card must be logical unit 0 in the kernel. Also, CONUNIT must
251: * be 1, the port affected by the REMOTE/LOCAL switch.
252: */
253: #define CONUNIT (1)
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