phb.h
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上传日期：2013-02-24
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文件大小：11k
- /****************************************************************************
- ******* *******
- ******* 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 ***********/
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