dcmreg.h revision 1.2
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 * from: @(#)dcmreg.h 7.4 (Berkeley) 11/4/90 40 * $Id: dcmreg.h,v 1.2 1993/08/01 19:24:00 mycroft Exp $ 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) 254
Indexes created Sun Sep 28 16:09:52 GMT 2025