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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 is only permitted until one year after the first shipment
11: * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
12: * binary forms are permitted provided that: (1) source distributions retain
13: * this entire copyright notice and comment, and (2) distributions including
14: * binaries display the following acknowledgement: This product includes
15: * software developed by the University of California, Berkeley and its
16: * contributors'' in the documentation or other materials provided with the
17: * distribution and in all advertising materials mentioning features or use
18: * of this software. Neither the name of the University nor the names of
19: * its contributors may be used to endorse or promote products derived from
20: * this software without specific prior written permission.
21: * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
22: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
23: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
24: *
25: * from: Utah $Hdr: dcmreg.h 1.3 89/08/23$
26: *
27: * @(#)dcmreg.h 7.3 (Berkeley) 6/22/90
28: */
29:
30: struct dcmdevice { /* host address, only odd bytes addressed */
31: u_char dcm_pad0;
32: volatile u_char dcm_rsid; /* Reset / ID 0001 */
33: u_char dcm_pad1;
34: volatile u_char dcm_ic; /* Interrupt control register 0003 */
35: u_char dcm_pad2;
36: volatile u_char dcm_sem; /* Semaphore register 0005 */
37: u_char dcm_pad3[0x7ffa]; /* Unaddressable 0006-7fff */
38: u_char dcm_pad4;
39: volatile u_char dcm_iir; /* Interrupt ident register 8001 */
40: u_char dcm_pad5;
41: volatile u_char dcm_cr; /* Command register 8003 */
42: u_char dcm_pad6[0x3fc]; /* Card scratch 8004-83ff */
43: struct dcmrfifo {
44: u_char ptr_pad1;
45: volatile u_char data_char;
46: u_char ptr_pad2;
47: volatile u_char data_stat;
48: } dcm_rfifos[4][0x80]; /* Receive queues 8400 */
49: struct {
50: u_char ptr_pad1;
51: volatile u_char data_data;
52: } dcm_bmap[0x100]; /* Bitmap table 8c00 */
53: struct {
54: u_char ptr_pad;
55: volatile u_char ptr;
56: } dcm_rhead[4]; /* Fifo head - receive 8e00 */
57: struct {
58: u_char ptr_pad;
59: volatile u_char ptr;
60: } dcm_rtail[4]; /* Fifo tail - receive 8e08 */
61: struct {
62: u_char ptr_pad;
63: volatile u_char ptr;
64: } dcm_thead[4]; /* Fifo head - transmit 8e10 */
65: struct {
66: u_char ptr_pad;
67: volatile u_char ptr;
68: } dcm_ttail[4]; /* Fifo tail - transmit 8e18 */
69: struct {
70: u_char pad1;
71: volatile u_char dcm_conf;
72: u_char pad2;
73: volatile u_char dcm_baud;
74: } dcm_data[4]; /* Configuration registers 8e20 */
75: u_char dcm_pad7;
76: volatile u_char dcm_mdmin; /* Modem in 8e31 */
77: u_char dcm_pad8;
78: volatile u_char dcm_mdmout; /* Modem out 8e33 */
79: u_char dcm_pad9;
80: volatile u_char dcm_mdmmsk; /* Modem mask 8e35 */
81: struct {
82: u_char pad1;
83: volatile u_char dcm_data;
84: } dcm_cmdtab[4]; /* Command tables 8e36 */
85: struct {
86: u_char pad1;
87: volatile u_char dcm_data;
88: } dcm_icrtab[4]; /* Interrupt data 8e3e */
89: u_char dcm_pad10;
90: volatile u_char dcm_stcon; /* Self test condition 8e47 */
91: u_char dcm_pad11[0x98]; /* Undef SR regs 8e48-8edf */
92: struct dcmtfifo {
93: u_char ptr_pad1;
94: volatile u_char data_char;
95: } dcm_tfifos[4][0x10]; /* Transmit queues 8ee0 */
96: };
97:
98: /*
99: * Overlay structure for port specific queue "registers".
100: * Starts at offset 0x8E00+(port*2).
101: */
102: struct dcmpreg {
103: u_char pad0; /* +00 */
104: volatile u_char r_head; /* +01 */
105: u_char pad1[7]; /* +02 */
106: volatile u_char r_tail; /* +09 */
107: u_char pad2[7]; /* +0A */
108: volatile u_char t_head; /* +11 */
109: u_char pad3[7]; /* +12 */
110: volatile u_char t_tail; /* +19 */
111: };
112: #define dcm_preg(d, p) ((struct dcmpreg *)((u_int)(d)+0x8e00+(p)*2))
113:
114: /* interface reset/id */
115: #define DCMCON 0x80 /* REMOTE/LOCAL switch, read */
116: #define DCMID 0x5 /* hardwired card id, read */
117: #define DCMRS 0x80 /* software reset, write */
118:
119: /* interrupt control */
120: #define DCMIPL(x) ((((x) >> 4) & 3) + 3) /* interupt level, read */
121: #define IC_IR 0x40 /* interupt request, read */
122: #define IC_IE 0x80 /* interupt enable, write */
123: #define IC_ID 0x00 /* interupt disable, write */
124:
125:
126: /* Semaphore control */
127: #define SEM_BSY 0x80 /* read */
128: #define SEM_CLR 0xFF /* write */
129: #define SEM_LOCK(dcm) while ((dcm)->dcm_sem & SEM_BSY)
130: #define SEM_UNLOCK(dcm) (dcm)->dcm_sem = SEM_CLR
131:
132: /* command register */
133: #define CR_PORT0 0x1
134: #define CR_PORT1 0x2
135: #define CR_PORT2 0x4
136: #define CR_PORT3 0x8
137: #define CR_MODM 0x10 /* change modem output lines */
138: #define CR_TIMER 0x20 /* 16ms interrupt timer toggle */
139: #define CR_SELFT 0x40 /* run self test */
140: #define CR_MASK 0x7f
141:
142: /* interrupt ident register */
143: #define IIR_PORT0 0x1
144: #define IIR_PORT1 0x2
145: #define IIR_PORT2 0x4
146: #define IIR_PORT3 0x8
147: #define IIR_SELFT 0x10 /* self test completed */
148: #define IIR_MODM 0x20 /* change in modem input lines */
149: #define IIR_TIMEO 0x40 /* Time out */
150: #define IIR_MASK 0x7f
151:
152: /* self test cond reg */
153: #define ST_OK 0xe0
154:
155: /* Line configuration register */
156: #define LC_PNO 0x00
157: #define LC_PODD 0x01
158: #define LC_PEVEN 0x02
159: #define LC_PMSK 0x03
160:
161: #define LC_1STOP 0x00
162: #define LC_1HSTOP 0x04
163: #define LC_2STOP 0x08
164: #define LC_STOPMSK 0x0b
165:
166: #define LC_8BITS 0x30
167: #define LC_7BITS 0x20
168: #define LC_6BITS 0x10
169: #define LC_5BITS 0x00
170: #define LC_BITMSK 0x30
171:
172: /* baud reg */
173: #define BR_0 0x00
174: #define BR_50 0x01
175: #define BR_75 0x02
176: #define BR_110 0x03
177: #define BR_134 0x04
178: #define BR_150 0x05
179: #define BR_300 0x06
180: #define BR_600 0x07
181: #define BR_900 0x08
182: #define BR_1200 0x09
183: #define BR_1800 0x0a
184: #define BR_2400 0x0b
185: #define BR_3600 0x0c
186: #define BR_4800 0x0d
187: #define BR_7200 0x0e
188: #define BR_9600 0x0f
189: #define BR_19200 0x10
190: #define BR_38400 0x11
191:
192: /* modem input register */
193: #define MI_CTS 0x08
194: #define MI_DM 0x04
195: #define MI_CD 0x02
196: #define MI_RI 0x01
197:
198: /* modem output register */
199: #define MO_SR 0x04
200: #define MO_DTR 0x02
201: #define MO_RTS 0x01
202: #define MO_ON ((MO_DTR) | (MO_RTS))
203: #define MO_OFF 0x00
204:
205: /* cmd-tab values, write */
206: #define CT_CON 0x1 /* configuration change */
207: #define CT_TX 0x2 /* transmit buffer not empty */
208: #define CT_BRK 0x4 /* toggle BREAK */
209:
210: /* icr-tab values, read */
211: #define IT_TX 0x1 /* transmit buffer empty */
212: #define IT_SPEC 0x2 /* special character received */
213:
214: /* data errors */
215: #define RD_OVF 0x08
216: #define RD_BD 0x10
217: #define RD_PE 0x20
218: #define RD_OE 0x40
219: #define RD_FE 0x80
220: #define RD_MASK 0xf8
221:
222: /* Transmit/Receive masks */
223: #define TX_MASK 0x0f
224: #define RX_MASK 0xff
225:
226: /*
227: * WARNING: Serial console is assumed to be the lowest select-code card
228: * and that card must be logical unit 0 in the kernel. Also, CONUNIT must
229: * be 1, the port affected by the REMOTE/LOCAL switch.
230: */
231: #define CONUNIT (1)
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