diff options
Diffstat (limited to 'drivers/char/rio/link.h')
| -rw-r--r-- | drivers/char/rio/link.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/drivers/char/rio/link.h b/drivers/char/rio/link.h new file mode 100644 index 00000000000..972250348f4 --- /dev/null +++ b/drivers/char/rio/link.h @@ -0,0 +1,188 @@ +/**************************************************************************** + ******* ******* + ******* 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 ***********/ |