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/****************************************************************************
******* *******
******* CIRRUS.H *******
******* *******
****************************************************************************
Author : Jeremy Rolls
Date : 3 Aug 1990
*
* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
*
* 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.
Version : 0.01
Mods
----------------------------------------------------------------------------
Date By Description
----------------------------------------------------------------------------
***************************************************************************/
#ifndef _cirrus_h
#ifndef lint
/* static char* _cirrus_h_sccs = "@(#)cirrus.h 1.16"; */
#endif
#define _cirrus_h 1
/* Bit fields for particular registers shared with driver */
/* COR1 - driver and RTA */
#define COR1_ODD 0x80 /* Odd parity */
#define COR1_EVEN 0x00 /* Even parity */
#define COR1_NOP 0x00 /* No parity */
#define COR1_FORCE 0x20 /* Force parity */
#define COR1_NORMAL 0x40 /* With parity */
#define COR1_1STOP 0x00 /* 1 stop bit */
#define COR1_15STOP 0x04 /* 1.5 stop bits */
#define COR1_2STOP 0x08 /* 2 stop bits */
#define COR1_5BITS 0x00 /* 5 data bits */
#define COR1_6BITS 0x01 /* 6 data bits */
#define COR1_7BITS 0x02 /* 7 data bits */
#define COR1_8BITS 0x03 /* 8 data bits */
#define COR1_HOST 0xef /* Safe host bits */
/* RTA only */
#define COR1_CINPCK 0x00 /* Check parity of received characters */
#define COR1_CNINPCK 0x10 /* Don't check parity */
/* COR2 bits for both RTA and driver use */
#define COR2_IXANY 0x80 /* IXANY - any character is XON */
#define COR2_IXON 0x40 /* IXON - enable tx soft flowcontrol */
#define COR2_RTSFLOW 0x02 /* Enable tx hardware flow control */
/* Additional driver bits */
#define COR2_HUPCL 0x20 /* Hang up on close */
#define COR2_CTSFLOW 0x04 /* Enable rx hardware flow control */
#define COR2_IXOFF 0x01 /* Enable rx software flow control */
#define COR2_DTRFLOW 0x08 /* Enable tx hardware flow control */
/* RTA use only */
#define COR2_ETC 0x20 /* Embedded transmit options */
#define COR2_LOCAL 0x10 /* Local loopback mode */
#define COR2_REMOTE 0x08 /* Remote loopback mode */
#define COR2_HOST 0xc2 /* Safe host bits */
/* COR3 - RTA use only */
#define COR3_SCDRNG 0x80 /* Enable special char detect for range */
#define COR3_SCD34 0x40 /* Special character detect for SCHR's 3 + 4 */
#define COR3_FCT 0x20 /* Flow control transparency */
#define COR3_SCD12 0x10 /* Special character detect for SCHR's 1 + 2 */
#define COR3_FIFO12 0x0c /* 12 chars for receive FIFO threshold */
#define COR3_FIFO10 0x0a /* 10 chars for receive FIFO threshold */
#define COR3_FIFO8 0x08 /* 8 chars for receive FIFO threshold */
#define COR3_FIFO6 0x06 /* 6 chars for receive FIFO threshold */
#define COR3_THRESHOLD COR3_FIFO8 /* MUST BE LESS THAN MCOR_THRESHOLD */
#define COR3_DEFAULT (COR3_FCT | COR3_THRESHOLD)
/* Default bits for COR3 */
/* COR4 driver and RTA use */
#define COR4_IGNCR 0x80 /* Throw away CR's on input */
#define COR4_ICRNL 0x40 /* Map CR -> NL on input */
#define COR4_INLCR 0x20 /* Map NL -> CR on input */
#define COR4_IGNBRK 0x10 /* Ignore Break */
#define COR4_NBRKINT 0x08 /* No interrupt on break (-BRKINT) */
#define COR4_RAISEMOD 0x01 /* Raise modem output lines on non-zero baud */
/* COR4 driver only */
#define COR4_IGNPAR 0x04 /* IGNPAR (ignore characters with errors) */
#define COR4_PARMRK 0x02 /* PARMRK */
#define COR4_HOST 0xf8 /* Safe host bits */
/* COR4 RTA only */
#define COR4_CIGNPAR 0x02 /* Thrown away bad characters */
#define COR4_CPARMRK 0x04 /* PARMRK characters */
#define COR4_CNPARMRK 0x03 /* Don't PARMRK */
/* COR5 driver and RTA use */
#define COR5_ISTRIP 0x80 /* Strip input chars to 7 bits */
#define COR5_LNE 0x40 /* Enable LNEXT processing */
#define COR5_CMOE 0x20 /* Match good and errored characters */
#define COR5_ONLCR 0x02 /* NL -> CR NL on output */
#define COR5_OCRNL 0x01 /* CR -> NL on output */
/*
** Spare bits - these are not used in the CIRRUS registers, so we use
** them to set various other features.
*/
/*
** tstop and tbusy indication
*/
#define COR5_TSTATE_ON 0x08 /* Turn on monitoring of tbusy and tstop */
#define COR5_TSTATE_OFF 0x04 /* Turn off monitoring of tbusy and tstop */
/*
** TAB3
*/
#define COR5_TAB3 0x10 /* TAB3 mode */
#define COR5_HOST 0xc3 /* Safe host bits */
/* CCSR */
#define CCSR_TXFLOFF 0x04 /* Tx is xoffed */
/* MSVR1 */
/* NB. DTR / CD swapped from Cirrus spec as the pins are also reversed on the
RTA. This is because otherwise DCD would get lost on the 1 parallel / 3
serial option.
*/
#define MSVR1_CD 0x80 /* CD (DSR on Cirrus) */
#define MSVR1_RTS 0x40 /* RTS (CTS on Cirrus) */
#define MSVR1_RI 0x20 /* RI */
#define MSVR1_DTR 0x10 /* DTR (CD on Cirrus) */
#define MSVR1_CTS 0x01 /* CTS output pin (RTS on Cirrus) */
/* Next two used to indicate state of tbusy and tstop to driver */
#define MSVR1_TSTOP 0x08 /* Set if port flow controlled */
#define MSVR1_TEMPTY 0x04 /* Set if port tx buffer empty */
#define MSVR1_HOST 0xf3 /* The bits the host wants */
/* Defines for the subscripts of a CONFIG packet */
#define CONFIG_COR1 1 /* Option register 1 */
#define CONFIG_COR2 2 /* Option register 2 */
#define CONFIG_COR4 3 /* Option register 4 */
#define CONFIG_COR5 4 /* Option register 5 */
#define CONFIG_TXXON 5 /* Tx XON character */
#define CONFIG_TXXOFF 6 /* Tx XOFF character */
#define CONFIG_RXXON 7 /* Rx XON character */
#define CONFIG_RXXOFF 8 /* Rx XOFF character */
#define CONFIG_LNEXT 9 /* LNEXT character */
#define CONFIG_TXBAUD 10 /* Tx baud rate */
#define CONFIG_RXBAUD 11 /* Rx baud rate */
#define PRE_EMPTIVE 0x80 /* Pre-emptive bit in command field */
/* Packet types going from Host to remote - with the exception of OPEN, MOPEN,
CONFIG, SBREAK and MEMDUMP the remaining bytes of the data array will not
be used
*/
#define OPEN 0x00 /* Open a port */
#define CONFIG 0x01 /* Configure a port */
#define MOPEN 0x02 /* Modem open (block for DCD) */
#define CLOSE 0x03 /* Close a port */
#define WFLUSH (0x04 | PRE_EMPTIVE) /* Write flush */
#define RFLUSH (0x05 | PRE_EMPTIVE) /* Read flush */
#define RESUME (0x06 | PRE_EMPTIVE) /* Resume if xoffed */
#define SBREAK 0x07 /* Start break */
#define EBREAK 0x08 /* End break */
#define SUSPEND (0x09 | PRE_EMPTIVE) /* Susp op (behave as tho xoffed) */
#define FCLOSE (0x0a | PRE_EMPTIVE) /* Force close */
#define XPRINT 0x0b /* Xprint packet */
#define MBIS (0x0c | PRE_EMPTIVE) /* Set modem lines */
#define MBIC (0x0d | PRE_EMPTIVE) /* Clear modem lines */
#define MSET (0x0e | PRE_EMPTIVE) /* Set modem lines */
#define PCLOSE 0x0f /* Pseudo close - Leaves rx/tx enabled */
#define MGET (0x10 | PRE_EMPTIVE) /* Force update of modem status */
#define MEMDUMP (0x11 | PRE_EMPTIVE) /* Send back mem from addr supplied */
#define READ_REGISTER (0x12 | PRE_EMPTIVE) /* Read CD1400 register (debug) */
/* "Command" packets going from remote to host COMPLETE and MODEM_STATUS
use data[4] / data[3] to indicate current state and modem status respectively
*/
#define COMPLETE (0x20 | PRE_EMPTIVE)
/* Command complete */
#define BREAK_RECEIVED (0x21 | PRE_EMPTIVE)
/* Break received */
#define MODEM_STATUS (0x22 | PRE_EMPTIVE)
/* Change in modem status */
/* "Command" packet that could go either way - handshake wake-up */
#define HANDSHAKE (0x23 | PRE_EMPTIVE)
/* Wake-up to HOST / RTA */
#endif
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