ser_a2232.h
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上传日期:2013-02-24
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- /* drivers/char/ser_a2232.h */
- /* $Id: ser_a2232.h,v 0.4 2000/01/25 12:00:00 ehaase 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