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 * %sccs.include.redist.c% 11 * 12 * from: Utah $Hdr: dcmreg.h 1.7 92/01/21$ 13 * 14 * @(#)dcmreg.h 7.5 (Berkeley) 06/05/92 15 */ 16 17 #ifdef KERNEL 18 #include "hp/dev/iotypes.h" /* XXX */ 19 #else 20 #include <hp/dev/iotypes.h> /* XXX */ 21 #endif 22 23 struct dcmdevice { /* host address, only odd bytes addressed */ 24 u_char dcm_pad0; 25 vu_char dcm_rsid; /* Reset / ID 0001 */ 26 u_char dcm_pad1; 27 vu_char dcm_ic; /* Interrupt control register 0003 */ 28 u_char dcm_pad2; 29 vu_char dcm_sem; /* Semaphore register 0005 */ 30 u_char dcm_pad3[0x7ffa]; /* Unaddressable 0006-7fff */ 31 u_char dcm_pad4; 32 vu_char dcm_iir; /* Interrupt ident register 8001 */ 33 u_char dcm_pad5; 34 vu_char dcm_cr; /* Command register 8003 */ 35 u_char dcm_pad6[0x3fc]; /* Card scratch 8004-83ff */ 36 struct dcmrfifo { 37 u_char ptr_pad1; 38 vu_char data_char; 39 u_char ptr_pad2; 40 vu_char data_stat; 41 } dcm_rfifos[4][0x80]; /* Receive queues 8400 */ 42 struct { 43 u_char ptr_pad1; 44 vu_char data_data; 45 } dcm_bmap[0x100]; /* Bitmap table 8c00 */ 46 struct { 47 u_char ptr_pad; 48 vu_char ptr; 49 } dcm_rhead[4]; /* Fifo head - receive 8e00 */ 50 struct { 51 u_char ptr_pad; 52 vu_char ptr; 53 } dcm_rtail[4]; /* Fifo tail - receive 8e08 */ 54 struct { 55 u_char ptr_pad; 56 vu_char ptr; 57 } dcm_thead[4]; /* Fifo head - transmit 8e10 */ 58 struct { 59 u_char ptr_pad; 60 vu_char ptr; 61 } dcm_ttail[4]; /* Fifo tail - transmit 8e18 */ 62 struct { 63 u_char pad1; 64 vu_char dcm_conf; 65 u_char pad2; 66 vu_char dcm_baud; 67 } dcm_data[4]; /* Configuration registers 8e20 */ 68 struct modemreg { 69 u_char pad0; 70 vu_char mdmin; /* Modem in 8e31 */ 71 u_char pad1; 72 vu_char mdmout; /* Modem out 8e33 */ 73 u_char pad2; 74 vu_char mdmmsk; /* Modem mask 8e35 */ 75 } dcm_modem0; 76 struct { 77 u_char pad1; 78 vu_char dcm_data; 79 } dcm_cmdtab[4]; /* Command tables 8e36 */ 80 struct { 81 u_char pad1; 82 vu_char dcm_data; 83 } dcm_icrtab[4]; /* Interrupt data 8e3e */ 84 u_char dcm_pad10; 85 vu_char dcm_stcon; /* Self test condition 8e47 */ 86 struct modemreg dcm_modem1; /* 638 Modem port1 8e48 */ 87 struct modemreg dcm_modem2; /* 638 Modem port2 8e4e */ 88 struct modemreg dcm_modem3; /* 638 Modem port3 8e54 */ 89 u_char dcm_pad11; 90 vu_char dcm_modemchng; /* 638 Modem change mask 8e5b */ 91 u_char dcm_pad12; 92 vu_char dcm_modemintr; /* 638 Modem interrupt mask 8e5d */ 93 u_char dcm_pad13[0x82]; /* Undef Shared Ram 8e5e-8edf */ 94 struct dcmtfifo { 95 u_char ptr_pad1; 96 vu_char data_char; 97 } dcm_tfifos[4][0x10]; /* Transmit queues 8ee0 */ 98 }; 99 100 /* 101 * Overlay structure for port specific queue "registers". 102 * Starts at offset 0x8E00+(port*2). 103 */ 104 struct dcmpreg { 105 u_char pad0; /* +00 */ 106 vu_char r_head; /* +01 */ 107 u_char pad1[7]; /* +02 */ 108 vu_char r_tail; /* +09 */ 109 u_char pad2[7]; /* +0A */ 110 vu_char t_head; /* +11 */ 111 u_char pad3[7]; /* +12 */ 112 vu_char t_tail; /* +19 */ 113 }; 114 #define dcm_preg(d, p) ((struct dcmpreg *)((u_int)(d)+0x8e00+(p)*2)) 115 116 /* interface reset/id */ 117 #define DCMCON 0x80 /* REMOTE/LOCAL switch, read */ 118 #define DCMID 0x5 /* hardwired card id, read */ 119 #define DCMRS 0x80 /* software reset, write */ 120 121 /* interrupt control */ 122 #define DCMIPL(x) ((((x) >> 4) & 3) + 3) /* interupt level, read */ 123 #define IC_IR 0x40 /* interupt request, read */ 124 #define IC_IE 0x80 /* interupt enable, write */ 125 #define IC_ID 0x00 /* interupt disable, write */ 126 127 128 /* Semaphore control */ 129 #define SEM_BSY 0x80 /* read */ 130 #define SEM_CLR 0xFF /* write */ 131 #define SEM_LOCK(dcm) while ((dcm)->dcm_sem & SEM_BSY) 132 #define SEM_UNLOCK(dcm) (dcm)->dcm_sem = SEM_CLR 133 134 /* command register */ 135 #define CR_PORT0 0x1 136 #define CR_PORT1 0x2 137 #define CR_PORT2 0x4 138 #define CR_PORT3 0x8 139 #define CR_MODM 0x10 /* change modem output lines */ 140 #define CR_TIMER 0x20 /* 16ms interrupt timer toggle */ 141 #define CR_SELFT 0x40 /* run self test */ 142 #define CR_MASK 0x7f 143 144 /* interrupt ident register */ 145 #define IIR_PORT0 0x1 146 #define IIR_PORT1 0x2 147 #define IIR_PORT2 0x4 148 #define IIR_PORT3 0x8 149 #define IIR_SELFT 0x10 /* self test completed */ 150 #define IIR_MODM 0x20 /* change in modem input lines */ 151 #define IIR_TIMEO 0x40 /* Time out */ 152 #define IIR_MASK 0x7f 153 154 /* self test cond reg */ 155 #define ST_OK 0xe0 156 157 /* Line configuration register */ 158 #define LC_PNO 0x00 159 #define LC_PODD 0x01 160 #define LC_PEVEN 0x02 161 #define LC_PMSK 0x03 162 163 #define LC_1STOP 0x00 164 #define LC_1HSTOP 0x04 165 #define LC_2STOP 0x08 166 #define LC_STOPMSK 0x0b 167 168 #define LC_8BITS 0x30 169 #define LC_7BITS 0x20 170 #define LC_6BITS 0x10 171 #define LC_5BITS 0x00 172 #define LC_BITMSK 0x30 173 174 /* baud reg */ 175 #define BR_0 0x00 176 #define BR_50 0x01 177 #define BR_75 0x02 178 #define BR_110 0x03 179 #define BR_134 0x04 180 #define BR_150 0x05 181 #define BR_300 0x06 182 #define BR_600 0x07 183 #define BR_900 0x08 184 #define BR_1200 0x09 185 #define BR_1800 0x0a 186 #define BR_2400 0x0b 187 #define BR_3600 0x0c 188 #define BR_4800 0x0d 189 #define BR_7200 0x0e 190 #define BR_9600 0x0f 191 #define BR_19200 0x10 192 #define BR_38400 0x11 193 194 /* modem input register */ 195 #define MI_CTS 0x08 196 #define MI_DM 0x04 197 #define MI_CD 0x02 198 #define MI_RI 0x01 199 200 /* modem output register */ 201 #define MO_SR 0x04 202 #define MO_DTR 0x02 203 #define MO_RTS 0x01 204 #define MO_ON ((MO_DTR) | (MO_RTS)) 205 #define MO_OFF 0x00 206 207 /* cmd-tab values, write */ 208 #define CT_CON 0x1 /* configuration change */ 209 #define CT_TX 0x2 /* transmit buffer not empty */ 210 #define CT_BRK 0x4 /* toggle BREAK */ 211 212 /* icr-tab values, read */ 213 #define IT_TX 0x1 /* transmit buffer empty */ 214 #define IT_SPEC 0x2 /* special character received */ 215 216 /* data errors */ 217 #define RD_OVF 0x08 218 #define RD_BD 0x10 219 #define RD_PE 0x20 220 #define RD_OE 0x40 221 #define RD_FE 0x80 222 #define RD_MASK 0xf8 223 224 /* Transmit/Receive masks */ 225 #define TX_MASK 0x0f 226 #define RX_MASK 0xff 227 228 /* 229 * WARNING: Serial console is assumed to be the lowest select-code card 230 * and that card must be logical unit 0 in the kernel. Also, CONUNIT must 231 * be 1, the port affected by the REMOTE/LOCAL switch. 232 */ 233 #define CONUNIT (1) 234