Viewing file:  phb.h (11.15 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/****************************************************************************
******* *******
******* P H B H E A D E R *******
******* *******
****************************************************************************
Author : Ian Nandhra, Jeremy Rolls
Date :
*
* (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 _phb_h
#define _phb_h 1
#ifdef SCCS_LABELS
#ifndef lint
/* static char *_rio_phb_h_sccs = "@(#)phb.h 1.12"; */
#endif
#endif
/*************************************************
* Set the LIMIT values.
************************************************/
#ifdef RTA
#define RX_LIMIT (ushort) 3
#endif
#ifdef HOST
#define RX_LIMIT (ushort) 1
#endif
/*************************************************
* Handshake asserted. Deasserted by the LTT(s)
************************************************/
#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */
#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */
#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET)
/* Reset by ltt */
/*************************************************
* Maximum number of PHB's
************************************************/
#if defined (HOST) || defined (INKERNEL)
#define MAX_PHB ((ushort) 128) /* range 0-127 */
#else
#define MAX_PHB ((ushort) 8) /* range 0-7 */
#endif
/*************************************************
* Defines for the mode fields
************************************************/
#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */
#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */
#define TX_TAB3 0x0004 /* TAB3 mode */
#define TX_OCRNL 0x0008 /* OCRNL mode */
#define TX_ONLCR 0x0010 /* ONLCR mode */
#define TX_SENDSPACES 0x0020 /* Send n spaces command needs
completing */
#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */
#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */
#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
port */
#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL)
#define TX_DTRFLOW 0x0200 /* DTR tx flow control */
#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data
into the FIFO */
#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */
#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */
#define RX_SPARE 0x0001 /* SPARE */
#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */
#define RX_ICRNL 0x0008 /* ICRNL mode */
#define RX_INLCR 0x0010 /* INLCR mode */
#define RX_IGNCR 0x0020 /* IGNCR mode */
#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */
#define RX_IXOFF 0x0080 /* IXOFF enabled */
#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */
#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */
#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */
#define PORT_ISOPEN 0x0001 /* Port open? */
#define PORT_HUPCL 0x0002 /* Hangup on close? */
#define PORT_MOPENPEND 0x0004 /* Modem open pending */
#define PORT_ISPARALLEL 0x0008 /* Parallel port */
#define PORT_BREAK 0x0010 /* Port on break */
#define PORT_STATUSPEND 0x0020 /* Status packet pending */
#define PORT_BREAKPEND 0x0040 /* Break packet pending */
#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */
#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
port */
#define PORT_FULLMODEM 0x0200 /* Full modem signals */
#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */
#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */
#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */
#define PORT_WCLOSE 0x0800 /* Waiting for close */
#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */
#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */
#define DUMPMODE 0x4000 /* Dump RTA mem */
#define READ_REG 0x8000 /* Read CD1400 register */
/**************************************************************************
* PHB Structure
* A few words.
*
* Normally Packets are added to the end of the list and removed from
* the start. The pointer tx_add points to a SPACE to put a Packet.
* The pointer tx_remove points to the next Packet to remove
*************************************************************************/
#ifndef INKERNEL
#define src_unit u2.s2.unit
#define src_port u2.s2.port
#define dest_unit u1.s1.unit
#define dest_port u1.s1.port
#endif
#ifdef HOST
#define tx_start u3.s1.tx_start_ptr_ptr
#define tx_add u3.s1.tx_add_ptr_ptr
#define tx_end u3.s1.tx_end_ptr_ptr
#define tx_remove u3.s1.tx_remove_ptr_ptr
#define rx_start u4.s1.rx_start_ptr_ptr
#define rx_add u4.s1.rx_add_ptr_ptr
#define rx_end u4.s1.rx_end_ptr_ptr
#define rx_remove u4.s1.rx_remove_ptr_ptr
#endif
typedef struct PHB PHB ;
struct PHB {
#ifdef RTA
ushort port;
#endif
#ifdef INKERNEL
WORD source;
#else
union
{
ushort source; /* Complete source */
struct
{
unsigned char unit; /* Source unit */
unsigned char port; /* Source port */
} s2;
} u2;
#endif
WORD handshake ;
WORD status ;
NUMBER timeout ; /* Maximum of 1.9 seconds */
WORD link ; /* Send down this link */
#ifdef INKERNEL
WORD destination;
#else
union
{
ushort destination; /* Complete destination */
struct
{
unsigned char unit; /* Destination unit */
unsigned char port; /* Destination port */
} s1;
} u1;
#endif
#ifdef RTA
ushort tx_pkts_added;
ushort tx_pkts_removed;
Q_BUF_ptr tx_q_start ; /* Start of the Q list chain */
short num_tx_q_bufs ; /* Number of Q buffers in the chain */
PKT_ptr_ptr tx_add ; /* Add a new Packet here */
Q_BUF_ptr tx_add_qb; /* Pointer to the add Q buf */
PKT_ptr_ptr tx_add_st_qbb ; /* Pointer to start of the Q's buf */
PKT_ptr_ptr tx_add_end_qbb ; /* Pointer to the end of the Q's buf */
PKT_ptr_ptr tx_remove ; /* Remove a Packet here */
Q_BUF_ptr tx_remove_qb ; /* Pointer to the remove Q buf */
PKT_ptr_ptr tx_remove_st_qbb ; /* Pointer to the start of the Q buf */
PKT_ptr_ptr tx_remove_end_qbb ; /* Pointer to the end of the Q buf */
#endif
#ifdef INKERNEL
PKT_ptr_ptr tx_start ;
PKT_ptr_ptr tx_end ;
PKT_ptr_ptr tx_add ;
PKT_ptr_ptr tx_remove ;
#endif
#ifdef HOST
union
{
struct
{
PKT_ptr_ptr tx_start_ptr_ptr;
PKT_ptr_ptr tx_end_ptr_ptr;
PKT_ptr_ptr tx_add_ptr_ptr;
PKT_ptr_ptr tx_remove_ptr_ptr;
} s1;
struct
{
ushort * tx_start_ptr;
ushort * tx_end_ptr;
ushort * tx_add_ptr;
ushort * tx_remove_ptr;
} s2;
} u3;
#endif
#ifdef RTA
ushort rx_pkts_added;
ushort rx_pkts_removed;
Q_BUF_ptr rx_q_start ; /* Start of the Q list chain */
short num_rx_q_bufs ; /* Number of Q buffers in the chain */
PKT_ptr_ptr rx_add ; /* Add a new Packet here */
Q_BUF_ptr rx_add_qb ; /* Pointer to the add Q buf */
PKT_ptr_ptr rx_add_st_qbb ; /* Pointer to start of the Q's buf */
PKT_ptr_ptr rx_add_end_qbb ; /* Pointer to the end of the Q's buf */
PKT_ptr_ptr rx_remove ; /* Remove a Packet here */
Q_BUF_ptr rx_remove_qb ; /* Pointer to the remove Q buf */
PKT_ptr_ptr rx_remove_st_qbb ; /* Pointer to the start of the Q buf */
PKT_ptr_ptr rx_remove_end_qbb ; /* Pointer to the end of the Q buf */
#endif
#ifdef INKERNEL
PKT_ptr_ptr rx_start ;
PKT_ptr_ptr rx_end ;
PKT_ptr_ptr rx_add ;
PKT_ptr_ptr rx_remove ;
#endif
#ifdef HOST
union
{
struct
{
PKT_ptr_ptr rx_start_ptr_ptr;
PKT_ptr_ptr rx_end_ptr_ptr;
PKT_ptr_ptr rx_add_ptr_ptr;
PKT_ptr_ptr rx_remove_ptr_ptr;
} s1;
struct
{
ushort * rx_start_ptr;
ushort * rx_end_ptr;
ushort * rx_add_ptr;
ushort * rx_remove_ptr;
} s2;
} u4;
#endif
#ifdef RTA /* some fields for the remotes */
ushort flush_count; /* Count of write flushes */
ushort txmode; /* Modes for tx */
ushort rxmode; /* Modes for rx */
ushort portmode; /* Generic modes */
ushort column; /* TAB3 column count */
ushort tx_subscript; /* (TX) Subscript into data field */
ushort rx_subscript; /* (RX) Subscript into data field */
PKT_ptr rx_incomplete; /* Hold an incomplete packet here */
ushort modem_bits; /* Modem bits to mask */
ushort lastModem; /* Modem control lines. */
ushort addr; /* Address for sub commands */
ushort MonitorTstate; /* TRUE if monitoring tstop */
#endif
} ;
#endif
/*********** end of file ***********/
|