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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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+/****************************************************************************
+ ******* *******
+ ******* 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 ***********/
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