283 lines
9.7 KiB
C
283 lines
9.7 KiB
C
/****************************************************************************
|
|
******* *******
|
|
******* 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 ***********/
|