204 lines
7.8 KiB
C
204 lines
7.8 KiB
C
/* $NetBSD: mscreg.h,v 1.5 1996/12/09 17:24:58 is Exp $ */
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/*
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* Copyright (c) 1993 Zik.
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* Copyright (c) 1995 Jukka Marin <jmarin@teeri.jmp.fi>.
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* Copyright (c) 1995 Rob Healey <rhealey@kas.helios.mn.org>.
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* Copyright (c) 1982, 1986, 1990 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* - created by zik 931207
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* - Fixed break value. 950108 RFH
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* - Added 6502 field to mscmemory so board can be halted while
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* it's memory is being reloaded. 950108 RFH
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* - Ripped out structure guts and replaced with Jukka Marin's stuff for his
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* freely redistributable version of the 2232 6502c code. Yea!!!!!!
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* 950916 RFH
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* - Added Jukka's turbo board detection support and tmpbuf for copys. 950918
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* - Change to NetBSD style for integration in to the main tree. 950919
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*/
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#define NUMLINES 7 /* number of lines per card */
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#define IOBUFLEN 256 /* number of bytes per buffer */
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#define IOBUFLENMASK 0xff /* mask for maximum number of bytes */
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#define IOBUFHIGHWATER 192 /* point at which to enable output */
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#define IOBUFLOWWATER 128 /* point at which to wake output */
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#define MSC_VBL_PRIORITY 1 /* priority of vbl interrupt handler */
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#define MSC_UNKNOWN 0 /* crystal not known */
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#define MSC_NORMAL 1 /* normal A2232 (1.8432 MHz oscillator) */
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#define MSC_TURBO 2 /* turbo A2232 (3.6864 MHz oscillator) */
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struct msccommon {
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char Crystal; /* normal (1) or turbo (2) board? */
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u_char Pad_a;
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u_char TimerH; /* timer value after speed check */
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u_char TimerL;
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u_char CDHead; /* head pointer for CD message queue */
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u_char CDTail; /* tail pointer for CD message queue */
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u_char CDStatus;
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u_char Pad_b;
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};
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struct mscstatus {
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u_char InHead; /* input queue head */
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u_char InTail; /* input queue tail */
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u_char OutDisable; /* disables output */
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u_char OutHead; /* output queue head */
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u_char OutTail; /* output queue tail */
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u_char OutCtrl; /* soft flow control character to send */
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u_char OutFlush; /* flushes output buffer */
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u_char Setup; /* causes reconfiguration */
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u_char Param; /* parameter byte - see MSCPARAM */
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u_char Command; /* command byte - see MSCCMD */
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u_char SoftFlow; /* enables xon/xoff flow control */
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/* private 65C02 fields: */
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u_char XonOff; /* stores XON/XOFF enable/disable */
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};
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#define MSC_MEMPAD1 \
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(0x0200 - NUMLINES * sizeof(struct mscstatus) - sizeof(struct msccommon))
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#define MSC_MEMPAD2 (0x2000 - NUMLINES * IOBUFLEN - IOBUFLEN)
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struct mscmemory {
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struct mscstatus Status[NUMLINES]; /* 0x0000-0x006f status areas */
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struct msccommon Common; /* 0x0070-0x0077 common flags */
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u_char Dummy1[MSC_MEMPAD1]; /* 0x00XX-0x01ff */
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u_char OutBuf[NUMLINES][IOBUFLEN]; /* 0x0200-0x08ff output bufs */
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u_char InBuf[NUMLINES][IOBUFLEN]; /* 0x0900-0x0fff input bufs */
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u_char InCtl[NUMLINES][IOBUFLEN]; /* 0x1000-0x16ff control data */
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u_char CDBuf[IOBUFLEN]; /* 0x1700-0x17ff CD event buffer */
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u_char Dummy2[MSC_MEMPAD2]; /* 0x1800-0x2fff */
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u_char Code[0x1000]; /* 0x3000-0x3fff code area */
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u_short InterruptAck; /* 0x4000 intr ack */
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u_char Dummy3[0x3ffe]; /* 0x4002-0x7fff */
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u_short Enable6502Reset; /* 0x8000 Stop board, */
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/* 6502 RESET line held low */
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u_char Dummy4[0x3ffe]; /* 0x8002-0xbfff */
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u_short ResetBoard; /* 0xc000 reset board & run, */
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/* 6502 RESET line held high */
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};
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#undef MSC_MEMPAD1
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#undef MSC_MEMPAD2
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struct mscdevice {
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volatile struct mscmemory *board; /* where the board is located */
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int flags; /* modem control flags */
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int openflags; /* flags for device open */
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u_char unit; /* which unit (ie. which board) */
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u_char port; /* which port on the board (0-6) */
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u_char active; /* does this port have hardware? */
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u_char closing; /* are we flushing before close? */
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char tmpbuf[IOBUFLEN]; /* temp buffer for data transfers */
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};
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#define MSCINCTL_CHAR 0 /* corresponding byte in InBuf is a character */
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#define MSCINCTL_EVENT 1 /* corresponding byte in InBuf is an event */
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#define MSCEVENT_Break 1 /* break set */
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#define MSCEVENT_CarrierOn 2 /* carrier raised */
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#define MSCEVENT_CarrierOff 3 /* carrier dropped */
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#define MSCCMD_Enable 0x1 /* enable/DTR bit */
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#define MSCCMD_Close 0x2 /* close the device */
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#define MSCCMD_Open 0xb /* open the device */
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#define MSCCMD_CMask 0xf /* command mask */
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#define MSCCMD_RTSOff 0x0 /* turn off RTS */
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#define MSCCMD_RTSOn 0x8 /* turn on RTS */
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#define MSCCMD_Break 0xd /* transmit a break */
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#define MSCCMD_RTSMask 0xc /* mask for RTS stuff */
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#define MSCCMD_NoParity 0x00 /* don't use parity */
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#define MSCCMD_OddParity 0x20 /* odd parity */
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#define MSCCMD_EvenParity 0x60 /* even parity */
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#define MSCCMD_ParityMask 0xe0 /* parity mask */
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#define MSCPARAM_B115200 0x0 /* baud rates */
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#define MSCPARAM_B50 0x1
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#define MSCPARAM_B75 0x2
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#define MSCPARAM_B110 0x3
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#define MSCPARAM_B134 0x4
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#define MSCPARAM_B150 0x5
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#define MSCPARAM_B300 0x6
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#define MSCPARAM_B600 0x7
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#define MSCPARAM_B1200 0x8
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#define MSCPARAM_B1800 0x9
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#define MSCPARAM_B2400 0xa
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#define MSCPARAM_B3600 0xb
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#define MSCPARAM_B4800 0xc
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#define MSCPARAM_B7200 0xd
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#define MSCPARAM_B9600 0xe
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#define MSCPARAM_B19200 0xf
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#define MSCPARAM_BaudMask 0xf /* baud rate mask */
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#define MSCPARAM_RcvBaud 0x10 /* enable receive baud rate */
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#define MSCPARAM_8Bit 0x00 /* numbers of bits */
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#define MSCPARAM_7Bit 0x20
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#define MSCPARAM_6Bit 0x40
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#define MSCPARAM_5Bit 0x60
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#define MSCPARAM_BitMask 0x60 /* numbers of bits mask */
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/* tty number from device */
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#define MSCTTY(dev) (minor(dev) & 0x7e)
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/* slot number from device */
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#define MSCSLOT(dev) ((minor(dev) & 0x7e)>>1)
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/* dialin mode from device */
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#define MSCDIALIN(dev) (minor(dev) & 0x01)
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/* board number from device */
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#define MSCBOARD(dev) ((minor(dev))>>4)
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/* line number from device */
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#define MSCLINE(dev) (((minor(dev)) & 0xe)>>1)
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/* number of slots */
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#define MSCSLOTS ((NMSC-1)*8+7)
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/* number of ttys */
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#define MSCTTYS (MSCSLOTS*2)
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/* board number given slot number */
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#define MSCUNIT(slot) ((slot)>>3)
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/* slot number given unit and line */
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#define MSCSLOTUL(unit,line) (((unit)<<3)+(line))
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/* tty number given slot */
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#define MSCTTYSLOT(slot) ((slot)<<1)
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#ifndef TRUE
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#define TRUE 1
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#define FALSE 0
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#endif
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