143 lines
5.7 KiB
C
143 lines
5.7 KiB
C
/****************************************************************************
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******* *******
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******* P H B H E A D E R *******
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******* *******
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****************************************************************************
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Author : Ian Nandhra, Jeremy Rolls
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Date :
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Version : 0.01
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Mods
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----------------------------------------------------------------------------
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Date By Description
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----------------------------------------------------------------------------
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***************************************************************************/
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#ifndef _phb_h
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#define _phb_h 1
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/*************************************************
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* Handshake asserted. Deasserted by the LTT(s)
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************************************************/
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#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */
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#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */
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#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET)
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/* Reset by ltt */
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/*************************************************
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* Maximum number of PHB's
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************************************************/
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#define MAX_PHB ((ushort) 128) /* range 0-127 */
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/*************************************************
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* Defines for the mode fields
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************************************************/
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#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */
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#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */
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#define TX_TAB3 0x0004 /* TAB3 mode */
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#define TX_OCRNL 0x0008 /* OCRNL mode */
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#define TX_ONLCR 0x0010 /* ONLCR mode */
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#define TX_SENDSPACES 0x0020 /* Send n spaces command needs
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completing */
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#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */
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#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */
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#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
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port */
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#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL)
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#define TX_DTRFLOW 0x0200 /* DTR tx flow control */
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#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data
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into the FIFO */
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#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */
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#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */
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#define RX_SPARE 0x0001 /* SPARE */
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#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */
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#define RX_ICRNL 0x0008 /* ICRNL mode */
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#define RX_INLCR 0x0010 /* INLCR mode */
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#define RX_IGNCR 0x0020 /* IGNCR mode */
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#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */
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#define RX_IXOFF 0x0080 /* IXOFF enabled */
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#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */
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#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */
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#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */
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#define PORT_ISOPEN 0x0001 /* Port open? */
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#define PORT_HUPCL 0x0002 /* Hangup on close? */
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#define PORT_MOPENPEND 0x0004 /* Modem open pending */
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#define PORT_ISPARALLEL 0x0008 /* Parallel port */
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#define PORT_BREAK 0x0010 /* Port on break */
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#define PORT_STATUSPEND 0x0020 /* Status packet pending */
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#define PORT_BREAKPEND 0x0040 /* Break packet pending */
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#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */
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#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
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port */
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#define PORT_FULLMODEM 0x0200 /* Full modem signals */
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#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */
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#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */
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#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */
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#define PORT_WCLOSE 0x0800 /* Waiting for close */
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#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */
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#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */
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#define DUMPMODE 0x4000 /* Dump RTA mem */
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#define READ_REG 0x8000 /* Read CD1400 register */
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/**************************************************************************
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* PHB Structure
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* A few words.
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*
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* Normally Packets are added to the end of the list and removed from
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* the start. The pointer tx_add points to a SPACE to put a Packet.
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* The pointer tx_remove points to the next Packet to remove
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*************************************************************************/
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struct PHB {
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u8 source;
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u8 handshake;
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u8 status;
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u16 timeout; /* Maximum of 1.9 seconds */
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u8 link; /* Send down this link */
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u8 destination;
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u16 tx_start;
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u16 tx_end;
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u16 tx_add;
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u16 tx_remove;
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u16 rx_start;
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u16 rx_end;
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u16 rx_add;
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u16 rx_remove;
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};
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#endif
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/*********** end of file ***********/
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