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/* $NetBSD: mscreg.h,v 1.4 1995/10/07 18:22:14 chopps Exp $ */
/*
* Copyright (c) 1993 Zik.
* Copyright (c) 1995 Jukka Marin <jmarin@teeri.jmp.fi>.
* Copyright (c) 1995 Rob Healey <rhealey@kas.helios.mn.org>.
* Copyright (c) 1982, 1986, 1990 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* - created by zik 931207
* - Fixed break value. 950108 RFH
* - Added 6502 field to mscmemory so board can be halted while
* it's memory is being reloaded. 950108 RFH
* - Ripped out structure guts and replaced with Jukka Marin's stuff for his
* freely redistributable version of the 2232 6502c code. Yea!!!!!!
* 950916 RFH
* - Added Jukka's turbo board detection support and tmpbuf for copys. 950918
* - Change to NetBSD style for integration in to the main tree. 950919
*/
#define NUMLINES 7 /* number of lines per card */
#define IOBUFLEN 256 /* number of bytes per buffer */
#define IOBUFLENMASK 0xff /* mask for maximum number of bytes */
#define IOBUFHIGHWATER 192 /* point at which to enable output */
#define IOBUFLOWWATER 128 /* point at which to wake output */
#define MSC_VBL_PRIORITY 1 /* priority of vbl interrupt handler */
#define MSC_UNKNOWN 0 /* crystal not known */
#define MSC_NORMAL 1 /* normal A2232 (1.8432 MHz oscillator) */
#define MSC_TURBO 2 /* turbo A2232 (3.6864 MHz oscillator) */
struct msccommon {
char Crystal; /* normal (1) or turbo (2) board? */
u_char Pad_a;
u_char TimerH; /* timer value after speed check */
u_char TimerL;
};
struct mscstatus {
u_char InHead; /* input queue head */
u_char InTail; /* input queue tail */
u_char Pad_a; /* paddington */
u_char Pad_b; /* paddington */
u_char OutDisable; /* disables output */
u_char OutHead; /* output queue head */
u_char OutTail; /* output queue tail */
u_char OutCtrl; /* soft flow control character to send */
u_char OutFlush; /* flushes output buffer */
u_char Setup; /* causes reconfiguration */
u_char Param; /* parameter byte - see MSCPARAM */
u_char Command; /* command byte - see MSCCMD */
u_char SoftFlow; /* enables xon/xoff flow control */
/* private 65C02 fields: */
u_char chCD; /* used to detect CD changes */
u_char XonOff; /* stores XON/XOFF enable/disable */
u_char Pad_c; /* paddington */
};
#define MSC_MEMPAD \
(0x0200 - NUMLINES * sizeof(struct mscstatus) - sizeof(struct msccommon))
struct mscmemory {
struct mscstatus Status[NUMLINES]; /* 0x0000-0x006f status areas */
struct msccommon Common; /* 0x0070-0x0073 common flags */
u_char Dummy1[MSC_MEMPAD]; /* 0x00XX-0x01ff */
u_char OutBuf[NUMLINES][IOBUFLEN]; /* 0x0200-0x08ff output bufs */
u_char InBuf[NUMLINES][IOBUFLEN]; /* 0x0900-0x0fff input bufs */
u_char InCtl[NUMLINES][IOBUFLEN]; /* 0x1000-0x16ff control data */
u_char Dummy2[ 0x2000 - 7 * 0x0100]; /* 0x1700-0x2fff */
u_char Code[0x1000]; /* 0x3000-0x3fff code area */
u_short InterruptAck; /* 0x4000 intr ack */
u_char Dummy3[0x3ffe]; /* 0x4002-0x7fff */
u_short Enable6502Reset; /* 0x8000 Stop board, */
/* 6502 RESET line held low */
u_char Dummy4[0x3ffe]; /* 0x8002-0xbfff */
u_short ResetBoard; /* 0xc000 reset board & run, */
/* 6502 RESET line held high */
};
#undef MSC_MEMPAD
struct mscdevice {
volatile struct mscmemory *board; /* where the board is located */
int flags; /* modem control flags */
int openflags; /* flags for device open */
u_char port; /* which port on the board (0-6) */
u_char active; /* does this port have hardware? */
u_char closing; /* are we flushing before close? */
u_char paddington; /* just for padding */
char tmpbuf[IOBUFLEN]; /* temp buffer for data transfers */
};
#define MSCINCTL_CHAR 0 /* corresponding byte in InBuf is a character */
#define MSCINCTL_EVENT 1 /* corresponding byte in InBuf is an event */
#define MSCEVENT_Break 1 /* break set */
#define MSCEVENT_CarrierOn 2 /* carrier raised */
#define MSCEVENT_CarrierOff 3 /* carrier dropped */
#define MSCCMD_Enable 0x1 /* enable/DTR bit */
#define MSCCMD_Close 0x2 /* close the device */
#define MSCCMD_Open 0xb /* open the device */
#define MSCCMD_CMask 0xf /* command mask */
#define MSCCMD_RTSOff 0x0 /* turn off RTS */
#define MSCCMD_RTSOn 0x8 /* turn on RTS */
#define MSCCMD_Break 0xd /* transmit a break */
#define MSCCMD_RTSMask 0xc /* mask for RTS stuff */
#define MSCCMD_NoParity 0x00 /* don't use parity */
#define MSCCMD_OddParity 0x20 /* odd parity */
#define MSCCMD_EvenParity 0x60 /* even parity */
#define MSCCMD_ParityMask 0xe0 /* parity mask */
#define MSCPARAM_B115200 0x0 /* baud rates */
#define MSCPARAM_B50 0x1
#define MSCPARAM_B75 0x2
#define MSCPARAM_B110 0x3
#define MSCPARAM_B134 0x4
#define MSCPARAM_B150 0x5
#define MSCPARAM_B300 0x6
#define MSCPARAM_B600 0x7
#define MSCPARAM_B1200 0x8
#define MSCPARAM_B1800 0x9
#define MSCPARAM_B2400 0xa
#define MSCPARAM_B3600 0xb
#define MSCPARAM_B4800 0xc
#define MSCPARAM_B7200 0xd
#define MSCPARAM_B9600 0xe
#define MSCPARAM_B19200 0xf
#define MSCPARAM_BaudMask 0xf /* baud rate mask */
#define MSCPARAM_RcvBaud 0x10 /* enable receive baud rate */
#define MSCPARAM_8Bit 0x00 /* numbers of bits */
#define MSCPARAM_7Bit 0x20
#define MSCPARAM_6Bit 0x40
#define MSCPARAM_5Bit 0x60
#define MSCPARAM_BitMask 0x60 /* numbers of bits mask */
/* tty number from device */
#define MSCTTY(dev) (minor(dev) & 0x7e)
/* slot number from device */
#define MSCSLOT(dev) ((minor(dev) & 0x7e)>>1)
/* dialin mode from device */
#define MSCDIALIN(dev) (minor(dev) & 0x01)
/* board number from device */
#define MSCBOARD(dev) ((minor(dev))>>4)
/* line number from device */
#define MSCLINE(dev) (((minor(dev)) & 0xe)>>1)
/* number of slots */
#define MSCSLOTS ((NMSC-1)*8+7)
/* number of ttys */
#define MSCTTYS (MSCSLOTS*2)
/* board number given slot number */
#define MSCUNIT(slot) ((slot)>>3)
/* slot number given unit and line */
#define MSCSLOTUL(unit,line) (((unit)<<3)+(line))
/* tty number given slot */
#define MSCTTYSLOT(slot) ((slot)<<1)
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
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