1/**************************************************************************** 2 ******* ******* 3 ******* P H B H E A D E R ******* 4 ******* ******* 5 **************************************************************************** 6 7 Author : Ian Nandhra, Jeremy Rolls 8 Date : 9 10 * 11 * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK. 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, write to the Free Software 25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 26 27 Version : 0.01 28 29 30 Mods 31 ---------------------------------------------------------------------------- 32 Date By Description 33 ---------------------------------------------------------------------------- 34 35 ***************************************************************************/ 36 37#ifndef _phb_h 38#define _phb_h 1 39 40/************************************************* 41 * Handshake asserted. Deasserted by the LTT(s) 42 ************************************************/ 43#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */ 44 45#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */ 46 47#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET) 48 /* Reset by ltt */ 49 50 51/************************************************* 52 * Maximum number of PHB's 53 ************************************************/ 54#define MAX_PHB ((ushort) 128) /* range 0-127 */ 55 56/************************************************* 57 * Defines for the mode fields 58 ************************************************/ 59#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */ 60#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */ 61#define TX_TAB3 0x0004 /* TAB3 mode */ 62#define TX_OCRNL 0x0008 /* OCRNL mode */ 63#define TX_ONLCR 0x0010 /* ONLCR mode */ 64#define TX_SENDSPACES 0x0020 /* Send n spaces command needs 65 completing */ 66#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */ 67#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */ 68#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel 69 port */ 70#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL) 71#define TX_DTRFLOW 0x0200 /* DTR tx flow control */ 72#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data 73 into the FIFO */ 74#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */ 75#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */ 76 77#define RX_SPARE 0x0001 /* SPARE */ 78#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */ 79#define RX_ICRNL 0x0008 /* ICRNL mode */ 80#define RX_INLCR 0x0010 /* INLCR mode */ 81#define RX_IGNCR 0x0020 /* IGNCR mode */ 82#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */ 83#define RX_IXOFF 0x0080 /* IXOFF enabled */ 84#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */ 85#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */ 86#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */ 87 88#define PORT_ISOPEN 0x0001 /* Port open? */ 89#define PORT_HUPCL 0x0002 /* Hangup on close? */ 90#define PORT_MOPENPEND 0x0004 /* Modem open pending */ 91#define PORT_ISPARALLEL 0x0008 /* Parallel port */ 92#define PORT_BREAK 0x0010 /* Port on break */ 93#define PORT_STATUSPEND 0x0020 /* Status packet pending */ 94#define PORT_BREAKPEND 0x0040 /* Break packet pending */ 95#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */ 96#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel 97 port */ 98#define PORT_FULLMODEM 0x0200 /* Full modem signals */ 99#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */ 100#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */ 101 102#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */ 103 104#define PORT_WCLOSE 0x0800 /* Waiting for close */ 105#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */ 106#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */ 107#define DUMPMODE 0x4000 /* Dump RTA mem */ 108#define READ_REG 0x8000 /* Read CD1400 register */ 109 110 111 112/************************************************************************** 113 * PHB Structure 114 * A few words. 115 * 116 * Normally Packets are added to the end of the list and removed from 117 * the start. The pointer tx_add points to a SPACE to put a Packet. 118 * The pointer tx_remove points to the next Packet to remove 119 *************************************************************************/ 120 121struct PHB { 122 u8 source; 123 u8 handshake; 124 u8 status; 125 u16 timeout; /* Maximum of 1.9 seconds */ 126 u8 link; /* Send down this link */ 127 u8 destination; 128 u16 tx_start; 129 u16 tx_end; 130 u16 tx_add; 131 u16 tx_remove; 132 133 u16 rx_start; 134 u16 rx_end; 135 u16 rx_add; 136 u16 rx_remove; 137 138}; 139 140#endif 141 142/*********** end of file ***********/ 143