| /**************************************************************************** |
| ******* ******* |
| ******* L I N K |
| ******* ******* |
| **************************************************************************** |
| |
| 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 _link_h |
| #define _link_h 1 |
| |
| #ifndef lint |
| #ifdef SCCS_LABELS |
| /* static char *_rio_link_h_sccs = "@(#)link.h 1.15"; */ |
| #endif |
| #endif |
| |
| |
| |
| /************************************************* |
| * Define the Link Status stuff |
| ************************************************/ |
| #define LRT_ACTIVE ((ushort) 0x01) |
| #define LRT_SPARE1 ((ushort) 0x02) |
| #define INTRO_RCVD ((ushort) 0x04) |
| #define FORCED_DISCONNECT ((ushort) 0x08) |
| #define LRT_SPARE2 ((ushort) 0x80) |
| |
| #define TOP_OF_RTA_RAM ((ushort) 0x7000) |
| #define HOST_SERIAL_POINTER (unsigned char **) (TOP_OF_RTA_RAM - 2 * sizeof (ushort)) |
| |
| /* Flags for ltt_status */ |
| #define WAITING_ACK (ushort) 0x0001 |
| #define DATA_SENT (ushort) 0x0002 |
| #define WAITING_RUP (ushort) 0x0004 |
| #define WAITING_RETRY (ushort) 0x0008 |
| #define WAITING_TOPOLOGY (ushort) 0x0010 |
| #define SEND_SYNC (ushort) 0x0020 |
| #define FOAD_THIS_LINK (ushort) 0x0040 |
| #define REQUEST_SYNC (ushort) 0x0080 |
| #define REMOTE_DYING (ushort) 0x0100 |
| #define DIE_NOW (ushort) 0x0200 |
| |
| /* Boot request stuff */ |
| #define BOOT_REQUEST ((ushort) 0) /* Request for a boot */ |
| #define BOOT_ABORT ((ushort) 1) /* Abort a boot */ |
| #define BOOT_SEQUENCE ((ushort) 2) /* Packet with the number of packets |
| and load address */ |
| #define BOOT_COMPLETED ((ushort) 3) /* Boot completed */ |
| |
| /* States that a link can be in */ |
| #define LINK_DISCONNECTED ((ushort) 0) /* Disconnected */ |
| #define LINK_BOOT1 ((ushort) 1) /* Trying to send 1st stage boot */ |
| #define LINK_BOOT2 ((ushort) 2) /* Trying to send 2nd stage boot */ |
| #define LINK_BOOT2WAIT ((ushort) 3) /* Waiting for selftest results */ |
| #define LINK_BOOT3 ((ushort) 4) /* Trying to send 3rd stage boots */ |
| #define LINK_SYNC ((ushort) 5) /* Syncing */ |
| |
| #define LINK_INTRO ((ushort) 10) /* Introductory packet */ |
| #define LINK_SUPPLYID ((ushort) 11) /* Trying to supply an ID */ |
| #define LINK_TOPOLOGY ((ushort) 12) /* Send a topology update */ |
| #define LINK_REQUESTID ((ushort) 13) /* Waiting for an ID */ |
| #define LINK_CONNECTED ((ushort) 14) /* Connected */ |
| |
| #define LINK_INTERCONNECT ((ushort) 20) /* Subnets interconnected */ |
| |
| #define LINK_SPARE ((ushort) 40) |
| |
| /* |
| ** Set the default timeout for link communications. |
| */ |
| #define LINKTIMEOUT (400 * MILLISECOND) |
| |
| /* |
| ** LED stuff |
| */ |
| #if defined(RTA) |
| #define LED_OFF ((ushort) 0) /* LED off */ |
| #define LED_RED ((ushort) 1) /* LED Red */ |
| #define LED_GREEN ((ushort) 2) /* LED Green */ |
| #define LED_ORANGE ((ushort) 4) /* LED Orange */ |
| #define LED_1TO8_OPEN ((ushort) 1) /* Port 1->8 LED on */ |
| #define LED_9TO16_OPEN ((ushort) 2) /* Port 9->16 LED on */ |
| #define LED_SET_COLOUR(colour) (link->led = (colour)) |
| #define LED_OR_COLOUR(colour) (link->led |= (colour)) |
| #define LED_TIMEOUT(time) (link->led_timeout = RioTimePlus(RioTime(),(time))) |
| #else |
| #define LED_SET_COLOUR(colour) |
| #define LED_OR_COLOUR(colour) |
| #define LED_TIMEOUT(time) |
| #endif /* RTA */ |
| |
| struct LPB { |
| WORD link_number; /* Link Number */ |
| Channel_ptr in_ch; /* Link In Channel */ |
| Channel_ptr out_ch; /* Link Out Channel */ |
| #ifdef RTA |
| uchar stat_led; /* Port open leds */ |
| uchar led; /* True, light led! */ |
| #endif |
| BYTE attached_serial[4]; /* Attached serial number */ |
| BYTE attached_host_serial[4]; |
| /* Serial number of Host who |
| booted the other end */ |
| WORD descheduled; /* Currently Descheduled */ |
| WORD state; /* Current state */ |
| WORD send_poll; /* Send a Poll Packet */ |
| Process_ptr ltt_p; /* Process Descriptor */ |
| Process_ptr lrt_p; /* Process Descriptor */ |
| WORD lrt_status; /* Current lrt status */ |
| WORD ltt_status; /* Current ltt status */ |
| WORD timeout; /* Timeout value */ |
| WORD topology; /* Topology bits */ |
| WORD mon_ltt; |
| WORD mon_lrt; |
| WORD WaitNoBoot; /* Secs to hold off booting */ |
| PKT_ptr add_packet_list; /* Add packets to here */ |
| PKT_ptr remove_packet_list; /* Send packets from here */ |
| #ifdef RTA |
| #ifdef DCIRRUS |
| #define QBUFS_PER_REDIRECT (4 / PKTS_PER_BUFFER + 1) |
| #else |
| #define QBUFS_PER_REDIRECT (8 / PKTS_PER_BUFFER + 1) |
| #endif |
| PKT_ptr_ptr rd_add; /* Add a new Packet here */ |
| Q_BUF_ptr rd_add_qb; /* Pointer to the add Q buf */ |
| PKT_ptr_ptr rd_add_st_qbb; /* Pointer to start of the Q's buf */ |
| PKT_ptr_ptr rd_add_end_qbb; /* Pointer to the end of the Q's buf */ |
| PKT_ptr_ptr rd_remove; /* Remove a Packet here */ |
| Q_BUF_ptr rd_remove_qb; /* Pointer to the remove Q buf */ |
| PKT_ptr_ptr rd_remove_st_qbb; /* Pointer to the start of the Q buf */ |
| PKT_ptr_ptr rd_remove_end_qbb; /* Pointer to the end of the Q buf */ |
| ushort pkts_in_q; /* Packets in queue */ |
| #endif |
| |
| Channel_ptr lrt_fail_chan; /* Lrt's failure channel */ |
| Channel_ptr ltt_fail_chan; /* Ltt's failure channel */ |
| |
| #if defined (HOST) || defined (INKERNEL) |
| /* RUP structure for HOST to driver communications */ |
| struct RUP rup; |
| #endif |
| struct RUP link_rup; /* RUP for the link (POLL, |
| topology etc.) */ |
| WORD attached_link; /* Number of attached link */ |
| WORD csum_errors; /* csum errors */ |
| WORD num_disconnects; /* number of disconnects */ |
| WORD num_sync_rcvd; /* # sync's received */ |
| WORD num_sync_rqst; /* # sync requests */ |
| WORD num_tx; /* Num pkts sent */ |
| WORD num_rx; /* Num pkts received */ |
| WORD module_attached; /* Module tpyes of attached */ |
| WORD led_timeout; /* LED timeout */ |
| WORD first_port; /* First port to service */ |
| WORD last_port; /* Last port to service */ |
| }; |
| |
| #endif |
| |
| /*********** end of file ***********/ |
