/* 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 * alias The A2232 driver project * 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 /* 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