1 /****************************************************************************
3 ******* P H B H E A D E R *******
5 ****************************************************************************
7 Author : Ian Nandhra, Jeremy Rolls
11 * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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.
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.
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.
31 ----------------------------------------------------------------------------
33 ----------------------------------------------------------------------------
35 ***************************************************************************/
42 /* static char *_rio_phb_h_sccs = "@(#)phb.h 1.12"; */
47 /*************************************************
48 * Set the LIMIT values.
49 ************************************************/
51 #define RX_LIMIT (ushort) 3
54 #define RX_LIMIT (ushort) 1
58 /*************************************************
59 * Handshake asserted. Deasserted by the LTT(s)
60 ************************************************/
61 #define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */
63 #define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */
65 #define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET)
69 /*************************************************
70 * Maximum number of PHB's
71 ************************************************/
72 #if defined (HOST) || defined (INKERNEL)
73 #define MAX_PHB ((ushort) 128) /* range 0-127 */
75 #define MAX_PHB ((ushort) 8) /* range 0-7 */
78 /*************************************************
79 * Defines for the mode fields
80 ************************************************/
81 #define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */
82 #define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */
83 #define TX_TAB3 0x0004 /* TAB3 mode */
84 #define TX_OCRNL 0x0008 /* OCRNL mode */
85 #define TX_ONLCR 0x0010 /* ONLCR mode */
86 #define TX_SENDSPACES 0x0020 /* Send n spaces command needs
88 #define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */
89 #define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */
90 #define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
92 #define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL)
93 #define TX_DTRFLOW 0x0200 /* DTR tx flow control */
94 #define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data
96 #define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */
97 #define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */
99 #define RX_SPARE 0x0001 /* SPARE */
100 #define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */
101 #define RX_ICRNL 0x0008 /* ICRNL mode */
102 #define RX_INLCR 0x0010 /* INLCR mode */
103 #define RX_IGNCR 0x0020 /* IGNCR mode */
104 #define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */
105 #define RX_IXOFF 0x0080 /* IXOFF enabled */
106 #define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */
107 #define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */
108 #define RX_BUFFERED 0x0400 /* Try and pass on complete packets */
110 #define PORT_ISOPEN 0x0001 /* Port open? */
111 #define PORT_HUPCL 0x0002 /* Hangup on close? */
112 #define PORT_MOPENPEND 0x0004 /* Modem open pending */
113 #define PORT_ISPARALLEL 0x0008 /* Parallel port */
114 #define PORT_BREAK 0x0010 /* Port on break */
115 #define PORT_STATUSPEND 0x0020 /* Status packet pending */
116 #define PORT_BREAKPEND 0x0040 /* Break packet pending */
117 #define PORT_MODEMPEND 0x0080 /* Modem status packet pending */
118 #define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
120 #define PORT_FULLMODEM 0x0200 /* Full modem signals */
121 #define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */
122 #define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */
124 #define PORT_MODEMBITS 0x0600 /* Mask for modem fields */
126 #define PORT_WCLOSE 0x0800 /* Waiting for close */
127 #define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */
128 #define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */
129 #define DUMPMODE 0x4000 /* Dump RTA mem */
130 #define READ_REG 0x8000 /* Read CD1400 register */
134 /**************************************************************************
138 * Normally Packets are added to the end of the list and removed from
139 * the start. The pointer tx_add points to a SPACE to put a Packet.
140 * The pointer tx_remove points to the next Packet to remove
141 *************************************************************************/
143 #define src_unit u2.s2.unit
144 #define src_port u2.s2.port
145 #define dest_unit u1.s1.unit
146 #define dest_port u1.s1.port
149 #define tx_start u3.s1.tx_start_ptr_ptr
150 #define tx_add u3.s1.tx_add_ptr_ptr
151 #define tx_end u3.s1.tx_end_ptr_ptr
152 #define tx_remove u3.s1.tx_remove_ptr_ptr
153 #define rx_start u4.s1.rx_start_ptr_ptr
154 #define rx_add u4.s1.rx_add_ptr_ptr
155 #define rx_end u4.s1.rx_end_ptr_ptr
156 #define rx_remove u4.s1.rx_remove_ptr_ptr
158 typedef struct PHB PHB;
167 ushort source; /* Complete source */
169 unsigned char unit; /* Source unit */
170 unsigned char port; /* Source port */
176 NUMBER timeout; /* Maximum of 1.9 seconds */
177 WORD link; /* Send down this link */
182 ushort destination; /* Complete destination */
184 unsigned char unit; /* Destination unit */
185 unsigned char port; /* Destination port */
190 ushort tx_pkts_added;
191 ushort tx_pkts_removed;
192 Q_BUF_ptr tx_q_start; /* Start of the Q list chain */
193 short num_tx_q_bufs; /* Number of Q buffers in the chain */
194 PKT_ptr_ptr tx_add; /* Add a new Packet here */
195 Q_BUF_ptr tx_add_qb; /* Pointer to the add Q buf */
196 PKT_ptr_ptr tx_add_st_qbb; /* Pointer to start of the Q's buf */
197 PKT_ptr_ptr tx_add_end_qbb; /* Pointer to the end of the Q's buf */
198 PKT_ptr_ptr tx_remove; /* Remove a Packet here */
199 Q_BUF_ptr tx_remove_qb; /* Pointer to the remove Q buf */
200 PKT_ptr_ptr tx_remove_st_qbb; /* Pointer to the start of the Q buf */
201 PKT_ptr_ptr tx_remove_end_qbb; /* Pointer to the end of the Q buf */
204 PKT_ptr_ptr tx_start;
207 PKT_ptr_ptr tx_remove;
212 PKT_ptr_ptr tx_start_ptr_ptr;
213 PKT_ptr_ptr tx_end_ptr_ptr;
214 PKT_ptr_ptr tx_add_ptr_ptr;
215 PKT_ptr_ptr tx_remove_ptr_ptr;
218 ushort *tx_start_ptr;
221 ushort *tx_remove_ptr;
227 ushort rx_pkts_added;
228 ushort rx_pkts_removed;
229 Q_BUF_ptr rx_q_start; /* Start of the Q list chain */
230 short num_rx_q_bufs; /* Number of Q buffers in the chain */
231 PKT_ptr_ptr rx_add; /* Add a new Packet here */
232 Q_BUF_ptr rx_add_qb; /* Pointer to the add Q buf */
233 PKT_ptr_ptr rx_add_st_qbb; /* Pointer to start of the Q's buf */
234 PKT_ptr_ptr rx_add_end_qbb; /* Pointer to the end of the Q's buf */
235 PKT_ptr_ptr rx_remove; /* Remove a Packet here */
236 Q_BUF_ptr rx_remove_qb; /* Pointer to the remove Q buf */
237 PKT_ptr_ptr rx_remove_st_qbb; /* Pointer to the start of the Q buf */
238 PKT_ptr_ptr rx_remove_end_qbb; /* Pointer to the end of the Q buf */
241 PKT_ptr_ptr rx_start;
244 PKT_ptr_ptr rx_remove;
249 PKT_ptr_ptr rx_start_ptr_ptr;
250 PKT_ptr_ptr rx_end_ptr_ptr;
251 PKT_ptr_ptr rx_add_ptr_ptr;
252 PKT_ptr_ptr rx_remove_ptr_ptr;
255 ushort *rx_start_ptr;
258 ushort *rx_remove_ptr;
263 #ifdef RTA /* some fields for the remotes */
264 ushort flush_count; /* Count of write flushes */
265 ushort txmode; /* Modes for tx */
266 ushort rxmode; /* Modes for rx */
267 ushort portmode; /* Generic modes */
268 ushort column; /* TAB3 column count */
269 ushort tx_subscript; /* (TX) Subscript into data field */
270 ushort rx_subscript; /* (RX) Subscript into data field */
271 PKT_ptr rx_incomplete; /* Hold an incomplete packet here */
272 ushort modem_bits; /* Modem bits to mask */
273 ushort lastModem; /* Modem control lines. */
274 ushort addr; /* Address for sub commands */
275 ushort MonitorTstate; /* TRUE if monitoring tstop */
282 /*********** end of file ***********/