Subversion Repositories or1k

/* drivers/char/ser_a2232.h */

/* $Id: ser_a2232.h,v 1.1.1.1 2004-04-15 02:00:44 phoenix Exp $ */

/* Linux serial driver for the Amiga A2232 board */

/* This driver is MAINTAINED. Before applying any changes, please contact

 * the author.

 */

/* Copyright (c) 2000-2001 Enver Haase    <ehaase@inf.fu-berlin.de>

 *                   alias The A2232 driver project <A2232@gmx.net>

 * All rights reserved.

 *

 *   This program is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation; either version 2 of the License, or

 *   (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program; if not, write to the Free Software

 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 */

#ifndef _SER_A2232_H_

#define _SER_A2232_H_

/*

        How many boards are to be supported at maximum;

        "up to five A2232 Multiport Serial Cards may be installed in a

        single Amiga 2000" states the A2232 User's Guide. If you have

        more slots available, you might want to change the value below.

*/

#define MAX_A2232_BOARDS 5

#ifndef A2232_NORMAL_MAJOR

/* This allows overriding on the compiler commandline, or in a "major.h"

   include or something like that */

#define A2232_NORMAL_MAJOR  224 /* /dev/ttyY* */

#define A2232_CALLOUT_MAJOR 225 /* /dev/cuy*  */

#endif

/* Some magic is always good - Who knows :) */

#define A2232_MAGIC 0x000a2232

/* for the tty_struct subtype field */

#define A2232_TTY_SUBTYPE_NORMAL        1

#define A2232_TTY_SUBTYPE_CALLOUT       2

/* A2232 port structure to keep track of the

   status of every single line used */

struct a2232_port{

        struct gs_port gs;

        unsigned int which_a2232;

        unsigned int which_port_on_a2232;

        short disable_rx;

        short throttle_input;

        short cd_status;

};

#define NUMLINES                7       /* number of lines per board */

#define A2232_IOBUFLEN          256     /* number of bytes per buffer */

#define A2232_IOBUFLENMASK      0xff    /* mask for maximum number of bytes */

#define A2232_UNKNOWN   0        /* crystal not known */

#define A2232_NORMAL    1       /* normal A2232 (1.8432 MHz oscillator) */

#define A2232_TURBO     2       /* turbo A2232 (3.6864 MHz oscillator) */

struct a2232common {

        char   Crystal; /* normal (1) or turbo (2) board? */

        u_char Pad_a;

        u_char TimerH;  /* timer value after speed check */

        u_char TimerL;

        u_char CDHead;  /* head pointer for CD message queue */

        u_char CDTail;  /* tail pointer for CD message queue */

        u_char CDStatus;

        u_char Pad_b;

};

struct a2232status {

        u_char InHead;          /* input queue head */

        u_char InTail;          /* input queue tail */

        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 A2232PARAM */

        u_char Command;         /* command byte - see A2232CMD */

        u_char SoftFlow;        /* enables xon/xoff flow control */

        /* private 65EC02 fields: */

        u_char XonOff;          /* stores XON/XOFF enable/disable */

};

#define A2232_MEMPAD1   \

        (0x0200 - NUMLINES * sizeof(struct a2232status) -       \

        sizeof(struct a2232common))

#define A2232_MEMPAD2   (0x2000 - NUMLINES * A2232_IOBUFLEN - A2232_IOBUFLEN)

struct a2232memory {

        struct a2232status Status[NUMLINES];    /* 0x0000-0x006f status areas */

        struct a2232common Common;              /* 0x0070-0x0077 common flags */

        u_char Dummy1[A2232_MEMPAD1];           /* 0x00XX-0x01ff */

        u_char OutBuf[NUMLINES][A2232_IOBUFLEN];/* 0x0200-0x08ff output bufs */

        u_char InBuf[NUMLINES][A2232_IOBUFLEN]; /* 0x0900-0x0fff input bufs */

        u_char InCtl[NUMLINES][A2232_IOBUFLEN]; /* 0x1000-0x16ff control data */

        u_char CDBuf[A2232_IOBUFLEN];           /* 0x1700-0x17ff CD event buffer */

        u_char Dummy2[A2232_MEMPAD2];           /* 0x1800-0x2fff */

        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 A2232_MEMPAD1

#undef A2232_MEMPAD2

#define A2232INCTL_CHAR         0        /* corresponding byte in InBuf is a character */

#define A2232INCTL_EVENT        1       /* corresponding byte in InBuf is an event */

#define A2232EVENT_Break        1       /* break set */

#define A2232EVENT_CarrierOn    2       /* carrier raised */

#define A2232EVENT_CarrierOff   3       /* carrier dropped */

#define A2232EVENT_Sync         4       /* don't know, defined in 2232.ax */

#define A2232CMD_Enable         0x1     /* enable/DTR bit */

#define A2232CMD_Close          0x2     /* close the device */

#define A2232CMD_Open           0xb     /* open the device */

#define A2232CMD_CMask          0xf     /* command mask */

#define A2232CMD_RTSOff         0x0     /* turn off RTS */

#define A2232CMD_RTSOn          0x8     /* turn on RTS */

#define A2232CMD_Break          0xd     /* transmit a break */

#define A2232CMD_RTSMask        0xc     /* mask for RTS stuff */

#define A2232CMD_NoParity       0x00    /* don't use parity */

#define A2232CMD_OddParity      0x20    /* odd parity */

#define A2232CMD_EvenParity     0x60    /* even parity */

#define A2232CMD_ParityMask     0xe0    /* parity mask */

#define A2232PARAM_B115200      0x0     /* baud rates */

#define A2232PARAM_B50          0x1

#define A2232PARAM_B75          0x2

#define A2232PARAM_B110         0x3

#define A2232PARAM_B134         0x4

#define A2232PARAM_B150         0x5

#define A2232PARAM_B300         0x6

#define A2232PARAM_B600         0x7

#define A2232PARAM_B1200        0x8

#define A2232PARAM_B1800        0x9

#define A2232PARAM_B2400        0xa

#define A2232PARAM_B3600        0xb

#define A2232PARAM_B4800        0xc

#define A2232PARAM_B7200        0xd

#define A2232PARAM_B9600        0xe

#define A2232PARAM_B19200       0xf

#define A2232PARAM_BaudMask     0xf     /* baud rate mask */

#define A2232PARAM_RcvBaud      0x10    /* enable receive baud rate */

#define A2232PARAM_8Bit         0x00    /* numbers of bits */

#define A2232PARAM_7Bit         0x20

#define A2232PARAM_6Bit         0x40

#define A2232PARAM_5Bit         0x60

#define A2232PARAM_BitMask      0x60    /* numbers of bits mask */

/* Standard speeds tables, -1 means unavailable, -2 means 0 baud: switch off line */

#define A2232_BAUD_TABLE_NOAVAIL -1

#define A2232_BAUD_TABLE_NUM_RATES (18)

static int a2232_baud_table[A2232_BAUD_TABLE_NUM_RATES*3] = {

        //Baud  //Normal                        //Turbo

        50,     A2232PARAM_B50,                 A2232_BAUD_TABLE_NOAVAIL,

        75,     A2232PARAM_B75,                 A2232_BAUD_TABLE_NOAVAIL,

        110,    A2232PARAM_B110,                A2232_BAUD_TABLE_NOAVAIL,

        134,    A2232PARAM_B134,                A2232_BAUD_TABLE_NOAVAIL,

        150,    A2232PARAM_B150,                A2232PARAM_B75,

        200,    A2232_BAUD_TABLE_NOAVAIL,       A2232_BAUD_TABLE_NOAVAIL,

        300,    A2232PARAM_B300,                A2232PARAM_B150,

        600,    A2232PARAM_B600,                A2232PARAM_B300,

        1200,   A2232PARAM_B1200,               A2232PARAM_B600,

        1800,   A2232PARAM_B1800,               A2232_BAUD_TABLE_NOAVAIL,

        2400,   A2232PARAM_B2400,               A2232PARAM_B1200,

        4800,   A2232PARAM_B4800,               A2232PARAM_B2400,

        9600,   A2232PARAM_B9600,               A2232PARAM_B4800,

        19200,  A2232PARAM_B19200,              A2232PARAM_B9600,

        38400,  A2232_BAUD_TABLE_NOAVAIL,       A2232PARAM_B19200,

        57600,  A2232_BAUD_TABLE_NOAVAIL,       A2232_BAUD_TABLE_NOAVAIL,

#ifdef A2232_SPEEDHACK

        115200, A2232PARAM_B115200,             A2232_BAUD_TABLE_NOAVAIL,

        230400, A2232_BAUD_TABLE_NOAVAIL,       A2232PARAM_B115200

#else

        115200, A2232_BAUD_TABLE_NOAVAIL,       A2232_BAUD_TABLE_NOAVAIL,

        230400, A2232_BAUD_TABLE_NOAVAIL,       A2232_BAUD_TABLE_NOAVAIL

#endif

};

#endif