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/drivers/char/rio/link.h

https://bitbucket.org/evzijst/gittest
C Header | 188 lines | 115 code | 19 blank | 54 comment | 1 complexity | 3512cc63d06138166b12b407cf6c2905 MD5 | raw file
  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 ***********/