1/* drivers/char/ser_a2232.h */ 2 3/* $Id: ser_a2232.h,v 1.1.1.1 2007/08/03 18:52:28 Exp $ */ 4 5/* Linux serial driver for the Amiga A2232 board */ 6 7/* This driver is MAINTAINED. Before applying any changes, please contact 8 * the author. 9 */ 10 11/* Copyright (c) 2000-2001 Enver Haase <ehaase@inf.fu-berlin.de> 12 * alias The A2232 driver project <A2232@gmx.net> 13 * All rights reserved. 14 * 15 * This program is free software; you can redistribute it and/or modify 16 * it under the terms of the GNU General Public License as published by 17 * the Free Software Foundation; either version 2 of the License, or 18 * (at your option) any later version. 19 * 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 28 * 29 */ 30 31#ifndef _SER_A2232_H_ 32#define _SER_A2232_H_ 33 34/* 35 How many boards are to be supported at maximum; 36 "up to five A2232 Multiport Serial Cards may be installed in a 37 single Amiga 2000" states the A2232 User's Guide. If you have 38 more slots available, you might want to change the value below. 39*/ 40#define MAX_A2232_BOARDS 5 41 42#ifndef A2232_NORMAL_MAJOR 43/* This allows overriding on the compiler commandline, or in a "major.h" 44 include or something like that */ 45#define A2232_NORMAL_MAJOR 224 /* /dev/ttyY* */ 46#define A2232_CALLOUT_MAJOR 225 /* /dev/cuy* */ 47#endif 48 49/* Some magic is always good - Who knows :) */ 50#define A2232_MAGIC 0x000a2232 51 52/* A2232 port structure to keep track of the 53 status of every single line used */ 54struct a2232_port{ 55 struct gs_port gs; 56 unsigned int which_a2232; 57 unsigned int which_port_on_a2232; 58 short disable_rx; 59 short throttle_input; 60 short cd_status; 61}; 62 63#define NUMLINES 7 /* number of lines per board */ 64#define A2232_IOBUFLEN 256 /* number of bytes per buffer */ 65#define A2232_IOBUFLENMASK 0xff /* mask for maximum number of bytes */ 66 67 68#define A2232_UNKNOWN 0 /* crystal not known */ 69#define A2232_NORMAL 1 /* normal A2232 (1.8432 MHz oscillator) */ 70#define A2232_TURBO 2 /* turbo A2232 (3.6864 MHz oscillator) */ 71 72 73struct a2232common { 74 char Crystal; /* normal (1) or turbo (2) board? */ 75 u_char Pad_a; 76 u_char TimerH; /* timer value after speed check */ 77 u_char TimerL; 78 u_char CDHead; /* head pointer for CD message queue */ 79 u_char CDTail; /* tail pointer for CD message queue */ 80 u_char CDStatus; 81 u_char Pad_b; 82}; 83 84struct a2232status { 85 u_char InHead; /* input queue head */ 86 u_char InTail; /* input queue tail */ 87 u_char OutDisable; /* disables output */ 88 u_char OutHead; /* output queue head */ 89 u_char OutTail; /* output queue tail */ 90 u_char OutCtrl; /* soft flow control character to send */ 91 u_char OutFlush; /* flushes output buffer */ 92 u_char Setup; /* causes reconfiguration */ 93 u_char Param; /* parameter byte - see A2232PARAM */ 94 u_char Command; /* command byte - see A2232CMD */ 95 u_char SoftFlow; /* enables xon/xoff flow control */ 96 /* private 65EC02 fields: */ 97 u_char XonOff; /* stores XON/XOFF enable/disable */ 98}; 99 100#define A2232_MEMPAD1 \ 101 (0x0200 - NUMLINES * sizeof(struct a2232status) - \ 102 sizeof(struct a2232common)) 103#define A2232_MEMPAD2 (0x2000 - NUMLINES * A2232_IOBUFLEN - A2232_IOBUFLEN) 104 105struct a2232memory { 106 struct a2232status Status[NUMLINES]; /* 0x0000-0x006f status areas */ 107 struct a2232common Common; /* 0x0070-0x0077 common flags */ 108 u_char Dummy1[A2232_MEMPAD1]; /* 0x00XX-0x01ff */ 109 u_char OutBuf[NUMLINES][A2232_IOBUFLEN];/* 0x0200-0x08ff output bufs */ 110 u_char InBuf[NUMLINES][A2232_IOBUFLEN]; /* 0x0900-0x0fff input bufs */ 111 u_char InCtl[NUMLINES][A2232_IOBUFLEN]; /* 0x1000-0x16ff control data */ 112 u_char CDBuf[A2232_IOBUFLEN]; /* 0x1700-0x17ff CD event buffer */ 113 u_char Dummy2[A2232_MEMPAD2]; /* 0x1800-0x2fff */ 114 u_char Code[0x1000]; /* 0x3000-0x3fff code area */ 115 u_short InterruptAck; /* 0x4000 intr ack */ 116 u_char Dummy3[0x3ffe]; /* 0x4002-0x7fff */ 117 u_short Enable6502Reset; /* 0x8000 Stop board, */ 118 /* 6502 RESET line held low */ 119 u_char Dummy4[0x3ffe]; /* 0x8002-0xbfff */ 120 u_short ResetBoard; /* 0xc000 reset board & run, */ 121 /* 6502 RESET line held high */ 122}; 123 124#undef A2232_MEMPAD1 125#undef A2232_MEMPAD2 126 127#define A2232INCTL_CHAR 0 /* corresponding byte in InBuf is a character */ 128#define A2232INCTL_EVENT 1 /* corresponding byte in InBuf is an event */ 129 130#define A2232EVENT_Break 1 /* break set */ 131#define A2232EVENT_CarrierOn 2 /* carrier raised */ 132#define A2232EVENT_CarrierOff 3 /* carrier dropped */ 133#define A2232EVENT_Sync 4 /* don't know, defined in 2232.ax */ 134 135#define A2232CMD_Enable 0x1 /* enable/DTR bit */ 136#define A2232CMD_Close 0x2 /* close the device */ 137#define A2232CMD_Open 0xb /* open the device */ 138#define A2232CMD_CMask 0xf /* command mask */ 139#define A2232CMD_RTSOff 0x0 /* turn off RTS */ 140#define A2232CMD_RTSOn 0x8 /* turn on RTS */ 141#define A2232CMD_Break 0xd /* transmit a break */ 142#define A2232CMD_RTSMask 0xc /* mask for RTS stuff */ 143#define A2232CMD_NoParity 0x00 /* don't use parity */ 144#define A2232CMD_OddParity 0x20 /* odd parity */ 145#define A2232CMD_EvenParity 0x60 /* even parity */ 146#define A2232CMD_ParityMask 0xe0 /* parity mask */ 147 148#define A2232PARAM_B115200 0x0 /* baud rates */ 149#define A2232PARAM_B50 0x1 150#define A2232PARAM_B75 0x2 151#define A2232PARAM_B110 0x3 152#define A2232PARAM_B134 0x4 153#define A2232PARAM_B150 0x5 154#define A2232PARAM_B300 0x6 155#define A2232PARAM_B600 0x7 156#define A2232PARAM_B1200 0x8 157#define A2232PARAM_B1800 0x9 158#define A2232PARAM_B2400 0xa 159#define A2232PARAM_B3600 0xb 160#define A2232PARAM_B4800 0xc 161#define A2232PARAM_B7200 0xd 162#define A2232PARAM_B9600 0xe 163#define A2232PARAM_B19200 0xf 164#define A2232PARAM_BaudMask 0xf /* baud rate mask */ 165#define A2232PARAM_RcvBaud 0x10 /* enable receive baud rate */ 166#define A2232PARAM_8Bit 0x00 /* numbers of bits */ 167#define A2232PARAM_7Bit 0x20 168#define A2232PARAM_6Bit 0x40 169#define A2232PARAM_5Bit 0x60 170#define A2232PARAM_BitMask 0x60 /* numbers of bits mask */ 171 172 173/* Standard speeds tables, -1 means unavailable, -2 means 0 baud: switch off line */ 174#define A2232_BAUD_TABLE_NOAVAIL -1 175#define A2232_BAUD_TABLE_NUM_RATES (18) 176static int a2232_baud_table[A2232_BAUD_TABLE_NUM_RATES*3] = { 177 //Baud //Normal //Turbo 178 50, A2232PARAM_B50, A2232_BAUD_TABLE_NOAVAIL, 179 75, A2232PARAM_B75, A2232_BAUD_TABLE_NOAVAIL, 180 110, A2232PARAM_B110, A2232_BAUD_TABLE_NOAVAIL, 181 134, A2232PARAM_B134, A2232_BAUD_TABLE_NOAVAIL, 182 150, A2232PARAM_B150, A2232PARAM_B75, 183 200, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL, 184 300, A2232PARAM_B300, A2232PARAM_B150, 185 600, A2232PARAM_B600, A2232PARAM_B300, 186 1200, A2232PARAM_B1200, A2232PARAM_B600, 187 1800, A2232PARAM_B1800, A2232_BAUD_TABLE_NOAVAIL, 188 2400, A2232PARAM_B2400, A2232PARAM_B1200, 189 4800, A2232PARAM_B4800, A2232PARAM_B2400, 190 9600, A2232PARAM_B9600, A2232PARAM_B4800, 191 19200, A2232PARAM_B19200, A2232PARAM_B9600, 192 38400, A2232_BAUD_TABLE_NOAVAIL, A2232PARAM_B19200, 193 57600, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL, 194#ifdef A2232_SPEEDHACK 195 115200, A2232PARAM_B115200, A2232_BAUD_TABLE_NOAVAIL, 196 230400, A2232_BAUD_TABLE_NOAVAIL, A2232PARAM_B115200 197#else 198 115200, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL, 199 230400, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL 200#endif 201}; 202#endif 203