1 /* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1982, 1986, 1990, 1993 4 * The Regents of the University of California. 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 8.1 (Berkeley) 06/10/93 15 */ 16 17 #include <hp/dev/iotypes.h> /* XXX */ 18 19 struct dcmdevice { /* host address, only odd bytes addressed */ 20 u_char dcm_pad0; 21 vu_char dcm_rsid; /* Reset / ID 0001 */ 22 u_char dcm_pad1; 23 vu_char dcm_ic; /* Interrupt control register 0003 */ 24 u_char dcm_pad2; 25 vu_char dcm_sem; /* Semaphore register 0005 */ 26 u_char dcm_pad3[0x7ffa]; /* Unaddressable 0006-7fff */ 27 u_char dcm_pad4; 28 vu_char dcm_iir; /* Interrupt ident register 8001 */ 29 u_char dcm_pad5; 30 vu_char dcm_cr; /* Command register 8003 */ 31 u_char dcm_pad6[0x3fc]; /* Card scratch 8004-83ff */ 32 struct dcmrfifo { 33 u_char ptr_pad1; 34 vu_char data_char; 35 u_char ptr_pad2; 36 vu_char data_stat; 37 } dcm_rfifos[4][0x80]; /* Receive queues 8400 */ 38 struct { 39 u_char ptr_pad1; 40 vu_char data_data; 41 } dcm_bmap[0x100]; /* Bitmap table 8c00 */ 42 struct { 43 u_char ptr_pad; 44 vu_char ptr; 45 } dcm_rhead[4]; /* Fifo head - receive 8e00 */ 46 struct { 47 u_char ptr_pad; 48 vu_char ptr; 49 } dcm_rtail[4]; /* Fifo tail - receive 8e08 */ 50 struct { 51 u_char ptr_pad; 52 vu_char ptr; 53 } dcm_thead[4]; /* Fifo head - transmit 8e10 */ 54 struct { 55 u_char ptr_pad; 56 vu_char ptr; 57 } dcm_ttail[4]; /* Fifo tail - transmit 8e18 */ 58 struct { 59 u_char pad1; 60 vu_char dcm_conf; 61 u_char pad2; 62 vu_char dcm_baud; 63 } dcm_data[4]; /* Configuration registers 8e20 */ 64 struct modemreg { 65 u_char pad0; 66 vu_char mdmin; /* Modem in 8e31 */ 67 u_char pad1; 68 vu_char mdmout; /* Modem out 8e33 */ 69 u_char pad2; 70 vu_char mdmmsk; /* Modem mask 8e35 */ 71 } dcm_modem0; 72 struct { 73 u_char pad1; 74 vu_char dcm_data; 75 } dcm_cmdtab[4]; /* Command tables 8e36 */ 76 struct { 77 u_char pad1; 78 vu_char dcm_data; 79 } dcm_icrtab[4]; /* Interrupt data 8e3e */ 80 u_char dcm_pad10; 81 vu_char dcm_stcon; /* Self test condition 8e47 */ 82 struct modemreg dcm_modem1; /* 638 Modem port1 8e48 */ 83 struct modemreg dcm_modem2; /* 638 Modem port2 8e4e */ 84 struct modemreg dcm_modem3; /* 638 Modem port3 8e54 */ 85 u_char dcm_pad11; 86 vu_char dcm_modemchng; /* 638 Modem change mask 8e5b */ 87 u_char dcm_pad12; 88 vu_char dcm_modemintr; /* 638 Modem interrupt mask 8e5d */ 89 u_char dcm_pad13[0x82]; /* Undef Shared Ram 8e5e-8edf */ 90 struct dcmtfifo { 91 u_char ptr_pad1; 92 vu_char data_char; 93 } dcm_tfifos[4][0x10]; /* Transmit queues 8ee0 */ 94 }; 95 96 /* 97 * Overlay structure for port specific queue "registers". 98 * Starts at offset 0x8E00+(port*2). 99 */ 100 struct dcmpreg { 101 u_char pad0; /* +00 */ 102 vu_char r_head; /* +01 */ 103 u_char pad1[7]; /* +02 */ 104 vu_char r_tail; /* +09 */ 105 u_char pad2[7]; /* +0A */ 106 vu_char t_head; /* +11 */ 107 u_char pad3[7]; /* +12 */ 108 vu_char t_tail; /* +19 */ 109 }; 110 #define dcm_preg(d, p) ((struct dcmpreg *)((u_int)(d)+0x8e00+(p)*2)) 111 112 /* interface reset/id */ 113 #define DCMCON 0x80 /* REMOTE/LOCAL switch, read */ 114 #define DCMID 0x5 /* hardwired card id, read */ 115 #define DCMRS 0x80 /* software reset, write */ 116 117 /* interrupt control */ 118 #define DCMIPL(x) ((((x) >> 4) & 3) + 3) /* interupt level, read */ 119 #define IC_IR 0x40 /* interupt request, read */ 120 #define IC_IE 0x80 /* interupt enable, write */ 121 #define IC_ID 0x00 /* interupt disable, write */ 122 123 124 /* Semaphore control */ 125 #define SEM_BSY 0x80 /* read */ 126 #define SEM_CLR 0xFF /* write */ 127 #define SEM_LOCK(dcm) while ((dcm)->dcm_sem & SEM_BSY) 128 #define SEM_UNLOCK(dcm) (dcm)->dcm_sem = SEM_CLR 129 130 /* command register */ 131 #define CR_PORT0 0x1 132 #define CR_PORT1 0x2 133 #define CR_PORT2 0x4 134 #define CR_PORT3 0x8 135 #define CR_MODM 0x10 /* change modem output lines */ 136 #define CR_TIMER 0x20 /* 16ms interrupt timer toggle */ 137 #define CR_SELFT 0x40 /* run self test */ 138 #define CR_MASK 0x7f 139 140 /* interrupt ident register */ 141 #define IIR_PORT0 0x1 142 #define IIR_PORT1 0x2 143 #define IIR_PORT2 0x4 144 #define IIR_PORT3 0x8 145 #define IIR_SELFT 0x10 /* self test completed */ 146 #define IIR_MODM 0x20 /* change in modem input lines */ 147 #define IIR_TIMEO 0x40 /* Time out */ 148 #define IIR_MASK 0x7f 149 150 /* self test cond reg */ 151 #define ST_OK 0xe0 152 153 /* Line configuration register */ 154 #define LC_PNO 0x00 155 #define LC_PODD 0x01 156 #define LC_PEVEN 0x02 157 #define LC_PMSK 0x03 158 159 #define LC_1STOP 0x00 160 #define LC_1HSTOP 0x04 161 #define LC_2STOP 0x08 162 #define LC_STOPMSK 0x0b 163 164 #define LC_8BITS 0x30 165 #define LC_7BITS 0x20 166 #define LC_6BITS 0x10 167 #define LC_5BITS 0x00 168 #define LC_BITMSK 0x30 169 170 /* baud reg */ 171 #define BR_0 0x00 172 #define BR_50 0x01 173 #define BR_75 0x02 174 #define BR_110 0x03 175 #define BR_134 0x04 176 #define BR_150 0x05 177 #define BR_300 0x06 178 #define BR_600 0x07 179 #define BR_900 0x08 180 #define BR_1200 0x09 181 #define BR_1800 0x0a 182 #define BR_2400 0x0b 183 #define BR_3600 0x0c 184 #define BR_4800 0x0d 185 #define BR_7200 0x0e 186 #define BR_9600 0x0f 187 #define BR_19200 0x10 188 #define BR_38400 0x11 189 190 /* modem input register */ 191 #define MI_CTS 0x08 192 #define MI_DM 0x04 193 #define MI_CD 0x02 194 #define MI_RI 0x01 195 196 /* modem output register */ 197 #define MO_SR 0x04 198 #define MO_DTR 0x02 199 #define MO_RTS 0x01 200 #define MO_ON ((MO_DTR) | (MO_RTS)) 201 #define MO_OFF 0x00 202 203 /* cmd-tab values, write */ 204 #define CT_CON 0x1 /* configuration change */ 205 #define CT_TX 0x2 /* transmit buffer not empty */ 206 #define CT_BRK 0x4 /* toggle BREAK */ 207 208 /* icr-tab values, read */ 209 #define IT_TX 0x1 /* transmit buffer empty */ 210 #define IT_SPEC 0x2 /* special character received */ 211 212 /* data errors */ 213 #define RD_OVF 0x08 214 #define RD_BD 0x10 215 #define RD_PE 0x20 216 #define RD_OE 0x40 217 #define RD_FE 0x80 218 #define RD_MASK 0xf8 219 220 /* Transmit/Receive masks */ 221 #define TX_MASK 0x0f 222 #define RX_MASK 0xff 223 224 /* 225 * WARNING: Serial console is assumed to be the lowest select-code card 226 * and that card must be logical unit 0 in the kernel. Also, CONUNIT must 227 * be 1, the port affected by the REMOTE/LOCAL switch. 228 */ 229 #define CONUNIT (1) 230