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-rw-r--r--drivers/char/rio/link.h188
1 files changed, 188 insertions, 0 deletions
diff --git a/drivers/char/rio/link.h b/drivers/char/rio/link.h
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1/****************************************************************************
2 ******* *******
3 ******* L I N K
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 _link_h
38#define _link_h 1
39
40#ifndef lint
41#ifdef SCCS_LABELS
42/* static char *_rio_link_h_sccs = "@(#)link.h 1.15"; */
43#endif
44#endif
45
46
47
48/*************************************************
49 * Define the Link Status stuff
50 ************************************************/
51#define LRT_ACTIVE ((ushort) 0x01)
52#define LRT_SPARE1 ((ushort) 0x02)
53#define INTRO_RCVD ((ushort) 0x04)
54#define FORCED_DISCONNECT ((ushort) 0x08)
55#define LRT_SPARE2 ((ushort) 0x80)
56
57#define TOP_OF_RTA_RAM ((ushort) 0x7000)
58#define HOST_SERIAL_POINTER (unsigned char **) (TOP_OF_RTA_RAM - 2 * sizeof (ushort))
59
60/* Flags for ltt_status */
61#define WAITING_ACK (ushort) 0x0001
62#define DATA_SENT (ushort) 0x0002
63#define WAITING_RUP (ushort) 0x0004
64#define WAITING_RETRY (ushort) 0x0008
65#define WAITING_TOPOLOGY (ushort) 0x0010
66#define SEND_SYNC (ushort) 0x0020
67#define FOAD_THIS_LINK (ushort) 0x0040
68#define REQUEST_SYNC (ushort) 0x0080
69#define REMOTE_DYING (ushort) 0x0100
70#define DIE_NOW (ushort) 0x0200
71
72/* Boot request stuff */
73#define BOOT_REQUEST ((ushort) 0) /* Request for a boot */
74#define BOOT_ABORT ((ushort) 1) /* Abort a boot */
75#define BOOT_SEQUENCE ((ushort) 2) /* Packet with the number of packets
76 and load address */
77#define BOOT_COMPLETED ((ushort) 3) /* Boot completed */
78
79/* States that a link can be in */
80#define LINK_DISCONNECTED ((ushort) 0) /* Disconnected */
81#define LINK_BOOT1 ((ushort) 1) /* Trying to send 1st stage boot */
82#define LINK_BOOT2 ((ushort) 2) /* Trying to send 2nd stage boot */
83#define LINK_BOOT2WAIT ((ushort) 3) /* Waiting for selftest results */
84#define LINK_BOOT3 ((ushort) 4) /* Trying to send 3rd stage boots */
85#define LINK_SYNC ((ushort) 5) /* Syncing */
86
87#define LINK_INTRO ((ushort) 10) /* Introductory packet */
88#define LINK_SUPPLYID ((ushort) 11) /* Trying to supply an ID */
89#define LINK_TOPOLOGY ((ushort) 12) /* Send a topology update */
90#define LINK_REQUESTID ((ushort) 13) /* Waiting for an ID */
91#define LINK_CONNECTED ((ushort) 14) /* Connected */
92
93#define LINK_INTERCONNECT ((ushort) 20) /* Subnets interconnected */
94
95#define LINK_SPARE ((ushort) 40)
96
97/*
98** Set the default timeout for link communications.
99*/
100#define LINKTIMEOUT (400 * MILLISECOND)
101
102/*
103** LED stuff
104*/
105#if defined(RTA)
106#define LED_OFF ((ushort) 0) /* LED off */
107#define LED_RED ((ushort) 1) /* LED Red */
108#define LED_GREEN ((ushort) 2) /* LED Green */
109#define LED_ORANGE ((ushort) 4) /* LED Orange */
110#define LED_1TO8_OPEN ((ushort) 1) /* Port 1->8 LED on */
111#define LED_9TO16_OPEN ((ushort) 2) /* Port 9->16 LED on */
112#define LED_SET_COLOUR(colour) (link->led = (colour))
113#define LED_OR_COLOUR(colour) (link->led |= (colour))
114#define LED_TIMEOUT(time) (link->led_timeout = RioTimePlus(RioTime(),(time)))
115#else
116#define LED_SET_COLOUR(colour)
117#define LED_OR_COLOUR(colour)
118#define LED_TIMEOUT(time)
119#endif /* RTA */
120
121struct LPB {
122 WORD link_number ; /* Link Number */
123 Channel_ptr in_ch ; /* Link In Channel */
124 Channel_ptr out_ch ; /* Link Out Channel */
125#ifdef RTA
126 uchar stat_led ; /* Port open leds */
127 uchar led ; /* True, light led! */
128#endif
129 BYTE attached_serial[4]; /* Attached serial number */
130 BYTE attached_host_serial[4];
131 /* Serial number of Host who
132 booted the other end */
133 WORD descheduled ; /* Currently Descheduled */
134 WORD state; /* Current state */
135 WORD send_poll ; /* Send a Poll Packet */
136 Process_ptr ltt_p ; /* Process Descriptor */
137 Process_ptr lrt_p ; /* Process Descriptor */
138 WORD lrt_status ; /* Current lrt status */
139 WORD ltt_status ; /* Current ltt status */
140 WORD timeout ; /* Timeout value */
141 WORD topology; /* Topology bits */
142 WORD mon_ltt ;
143 WORD mon_lrt ;
144 WORD WaitNoBoot ; /* Secs to hold off booting */
145 PKT_ptr add_packet_list; /* Add packets to here */
146 PKT_ptr remove_packet_list; /* Send packets from here */
147#ifdef RTA
148#ifdef DCIRRUS
149#define QBUFS_PER_REDIRECT (4 / PKTS_PER_BUFFER + 1)
150#else
151#define QBUFS_PER_REDIRECT (8 / PKTS_PER_BUFFER + 1)
152#endif
153 PKT_ptr_ptr rd_add ; /* Add a new Packet here */
154 Q_BUF_ptr rd_add_qb; /* Pointer to the add Q buf */
155 PKT_ptr_ptr rd_add_st_qbb ; /* Pointer to start of the Q's buf */
156 PKT_ptr_ptr rd_add_end_qbb ; /* Pointer to the end of the Q's buf */
157 PKT_ptr_ptr rd_remove ; /* Remove a Packet here */
158 Q_BUF_ptr rd_remove_qb ; /* Pointer to the remove Q buf */
159 PKT_ptr_ptr rd_remove_st_qbb ; /* Pointer to the start of the Q buf */
160 PKT_ptr_ptr rd_remove_end_qbb ; /* Pointer to the end of the Q buf */
161 ushort pkts_in_q ; /* Packets in queue */
162#endif
163
164 Channel_ptr lrt_fail_chan ; /* Lrt's failure channel */
165 Channel_ptr ltt_fail_chan ; /* Ltt's failure channel */
166
167#if defined (HOST) || defined (INKERNEL)
168 /* RUP structure for HOST to driver communications */
169 struct RUP rup ;
170#endif
171 struct RUP link_rup; /* RUP for the link (POLL,
172 topology etc.) */
173 WORD attached_link ; /* Number of attached link */
174 WORD csum_errors ; /* csum errors */
175 WORD num_disconnects ; /* number of disconnects */
176 WORD num_sync_rcvd ; /* # sync's received */
177 WORD num_sync_rqst ; /* # sync requests */
178 WORD num_tx ; /* Num pkts sent */
179 WORD num_rx ; /* Num pkts received */
180 WORD module_attached; /* Module tpyes of attached */
181 WORD led_timeout; /* LED timeout */
182 WORD first_port; /* First port to service */
183 WORD last_port; /* Last port to service */
184 } ;
185
186#endif
187
188/*********** end of file ***********/
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