mscreg.h revision 1.2
1 /* $NetBSD: mscreg.h,v 1.2 1995/09/30 02:08:47 chopps Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Zik. 5 * Copyright (c) 1995 Jukka Marin <jmarin (at) teeri.jmp.fi>. 6 * Copyright (c) 1995 Rob Healey <rhealey (at) kas.helios.mn.org>. 7 * Copyright (c) 1982, 1986, 1990 Regents of the University of California. 8 * All rights reserved. 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 * - created by zik 931207 39 * - Fixed break value. 950108 RFH 40 * - Added 6502 field to mscmemory so board can be halted while 41 * it's memory is being reloaded. 950108 RFH 42 * - Ripped out structure guts and replaced with Jukka Marin's stuff for his 43 * freely redistributable version of the 2232 6502c code. Yea!!!!!! 44 * 950916 RFH 45 * - Added Jukka's turbo board detection support and tmpbuf for copys. 950918 46 * - Change to NetBSD style for integration in to the main tree. 950919 47 */ 48 49 #define NUMLINES 7 /* number of lines per card */ 50 #define IOBUFLEN 256 /* number of bytes per buffer */ 51 #define IOBUFLENMASK 0xff /* mask for maximum number of bytes */ 52 #define IOBUFHIGHWATER 192 /* point at which to enable output */ 53 #define IOBUFLOWWATER 128 /* point at which to wake output */ 54 55 #define MSC_VBL_PRIORITY 1 /* priority of vbl interrupt handler */ 56 57 #define MSC_UNKNOWN 0 /* crystal not known */ 58 #define MSC_NORMAL 1 /* normal A2232 (1.8432 MHz oscillator) */ 59 #define MSC_TURBO 2 /* turbo A2232 (3.6864 MHz oscillator) */ 60 61 62 struct msccommon { 63 char Crystal; /* normal (1) or turbo (2) board? */ 64 u_char Pad_a; 65 u_char TimerH; /* timer value after speed check */ 66 u_char TimerL; 67 }; 68 69 struct mscstatus { 70 u_char InHead; /* input queue head */ 71 u_char InTail; /* input queue tail */ 72 u_char Pad_a; /* paddington */ 73 u_char InSync; /* input character to wake client */ 74 u_char OutDisable; /* disables output */ 75 u_char OutHead; /* output queue head */ 76 u_char OutTail; /* output queue tail */ 77 u_char OutCtrl; /* soft flow control character to send */ 78 u_char OutFlush; /* flushes output buffer */ 79 u_char Setup; /* causes reconfiguration */ 80 u_char Param; /* parameter byte - see MSCPARAM */ 81 u_char Command; /* command byte - see MSCCMD */ 82 u_char SoftFlow; /* enables xon/xoff flow control */ 83 /* private 65C02 fields: */ 84 u_char chCD; /* used to detect CD changes */ 85 u_char XonOff; /* stores XON/XOFF enable/disable */ 86 u_char Pad_b; /* paddington */ 87 }; 88 89 #define MSC_MEMPAD \ 90 (0x0200 - NUMLINES * sizeof(struct mscstatus) - sizeof(struct msccommon)) 91 92 struct mscmemory { 93 struct mscstatus Status[NUMLINES]; /* 0x0000-0x006f status areas */ 94 struct msccommon Common; /* 0x0070-0x0073 common flags */ 95 u_char Dummy1[MSC_MEMPAD]; /* 0x00XX-0x01ff */ 96 u_char OutBuf[NUMLINES][IOBUFLEN]; /* 0x0200-0x08ff output bufs */ 97 u_char InBuf[NUMLINES][IOBUFLEN]; /* 0x0900-0x0fff input bufs */ 98 u_char InCtl[NUMLINES][IOBUFLEN]; /* 0x1000-0x16ff control data */ 99 u_char Dummy2[ 0x2000 - 7 * 0x0100]; /* 0x1700-0x2fff */ 100 u_char Code[0x1000]; /* 0x3000-0x3fff code area */ 101 u_short InterruptAck; /* 0x4000 intr ack */ 102 u_char Dummy3[0x3ffe]; /* 0x4002-0x7fff */ 103 u_short Enable6502Reset; /* 0x8000 Stop board, */ 104 /* 6502 RESET line held low */ 105 u_char Dummy4[0x3ffe]; /* 0x8002-0xbfff */ 106 u_short ResetBoard; /* 0xc000 reset board & run, */ 107 /* 6502 RESET line held high */ 108 }; 109 110 #undef MSC_MEMPAD 111 112 struct mscdevice { 113 volatile struct mscmemory *board; /* where the board is located */ 114 int flags; /* modem control flags */ 115 int openflags; /* flags for device open */ 116 u_char port; /* which port on the board (0-6) */ 117 u_char active; /* does this port have hardware? */ 118 u_char closing; /* are we flushing before close? */ 119 u_char paddington; /* just for padding */ 120 char tmpbuf[IOBUFLEN]; /* temp buffer for data transfers */ 121 }; 122 123 #define MSCINCTL_CHAR 0 /* corresponding byte in InBuf is a character */ 124 #define MSCINCTL_EVENT 1 /* corresponding byte in InBuf is an event */ 125 126 #define MSCEVENT_Break 1 /* break set */ 127 #define MSCEVENT_CarrierOn 2 /* carrier raised */ 128 #define MSCEVENT_CarrierOff 3 /* carrier dropped */ 129 #define MSCEVENT_Sync 4 130 131 #define MSCCMD_Enable 0x1 /* enable/DTR bit */ 132 #define MSCCMD_Close 0x2 /* close the device */ 133 #define MSCCMD_Open 0xb /* open the device */ 134 #define MSCCMD_CMask 0xf /* command mask */ 135 #define MSCCMD_RTSOff 0x0 /* turn off RTS */ 136 #define MSCCMD_RTSOn 0x8 /* turn on RTS */ 137 #define MSCCMD_Break 0xd /* transmit a break */ 138 #define MSCCMD_RTSMask 0xc /* mask for RTS stuff */ 139 #define MSCCMD_NoParity 0x00 /* don't use parity */ 140 #define MSCCMD_OddParity 0x20 /* odd parity */ 141 #define MSCCMD_EvenParity 0x60 /* even parity */ 142 #define MSCCMD_ParityMask 0xe0 /* parity mask */ 143 144 #define MSCPARAM_B115200 0x0 /* baud rates */ 145 #define MSCPARAM_B50 0x1 146 #define MSCPARAM_B75 0x2 147 #define MSCPARAM_B110 0x3 148 #define MSCPARAM_B134 0x4 149 #define MSCPARAM_B150 0x5 150 #define MSCPARAM_B300 0x6 151 #define MSCPARAM_B600 0x7 152 #define MSCPARAM_B1200 0x8 153 #define MSCPARAM_B1800 0x9 154 #define MSCPARAM_B2400 0xa 155 #define MSCPARAM_B3600 0xb 156 #define MSCPARAM_B4800 0xc 157 #define MSCPARAM_B7200 0xd 158 #define MSCPARAM_B9600 0xe 159 #define MSCPARAM_B19200 0xf 160 #define MSCPARAM_BaudMask 0xf /* baud rate mask */ 161 #define MSCPARAM_RcvBaud 0x10 /* enable receive baud rate */ 162 #define MSCPARAM_8Bit 0x00 /* numbers of bits */ 163 #define MSCPARAM_7Bit 0x20 164 #define MSCPARAM_6Bit 0x40 165 #define MSCPARAM_5Bit 0x60 166 #define MSCPARAM_BitMask 0x60 /* numbers of bits mask */ 167 168 /* tty number from device */ 169 #define MSCTTY(dev) (minor(dev) & 0x7e) 170 171 /* slot number from device */ 172 #define MSCSLOT(dev) ((minor(dev) & 0x7e)>>1) 173 174 /* dialin mode from device */ 175 #define MSCDIALIN(dev) (minor(dev) & 0x01) 176 177 /* board number from device */ 178 #define MSCBOARD(dev) ((minor(dev))>>4) 179 180 /* line number from device */ 181 #define MSCLINE(dev) (((minor(dev)) & 0xe)>>1) 182 183 /* number of slots */ 184 #define MSCSLOTS ((NMSC-1)*8+7) 185 186 /* number of ttys */ 187 #define MSCTTYS (MSCSLOTS*2) 188 189 /* board number given slot number */ 190 #define MSCUNIT(slot) ((slot)>>3) 191 192 /* slot number given unit and line */ 193 #define MSCSLOTUL(unit,line) (((unit)<<3)+(line)) 194 195 /* tty number given slot */ 196 #define MSCTTYSLOT(slot) ((slot)<<1) 197 198 #ifndef TRUE 199 #define TRUE 1 200 #define FALSE 0 201 #endif 202
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