| /* 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 |
| |
| /* 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 |
