178 lines
4.3 KiB
C
178 lines
4.3 KiB
C
/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : cmdpkt.h
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** SID : 1.2
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** Last Modified : 11/6/98 11:34:09
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** Retrieved : 11/6/98 11:34:20
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**
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** ident @(#)cmdpkt.h 1.2
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**
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** -----------------------------------------------------------------------------
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*/
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#ifndef __rio_cmdpkt_h__
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#define __rio_cmdpkt_h__
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/*
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** overlays for the data area of a packet. Used in both directions
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** (to build a packet to send, and to interpret a packet that arrives)
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** and is very inconvenient for MIPS, so they appear as two separate
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** structures - those used for modifying/reading packets on the card
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** and those for modifying/reading packets in real memory, which have an _M
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** suffix.
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*/
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#define RTA_BOOT_DATA_SIZE (PKT_MAX_DATA_LEN-2)
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/*
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** The boot information packet looks like this:
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** This structure overlays a PktCmd->CmdData structure, and so starts
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** at Data[2] in the actual pkt!
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*/
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struct BootSequence {
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u16 NumPackets;
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u16 LoadBase;
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u16 CodeSize;
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};
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#define BOOT_SEQUENCE_LEN 8
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struct SamTop {
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u8 Unit;
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u8 Link;
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};
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struct CmdHdr {
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u8 PcCommand;
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union {
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u8 PcPhbNum;
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u8 PcLinkNum;
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u8 PcIDNum;
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} U0;
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};
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struct PktCmd {
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union {
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struct {
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struct CmdHdr CmdHdr;
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struct BootSequence PcBootSequence;
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} S1;
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struct {
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u16 PcSequence;
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u8 PcBootData[RTA_BOOT_DATA_SIZE];
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} S2;
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struct {
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u16 __crud__;
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u8 PcUniqNum[4]; /* this is really a uint. */
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u8 PcModuleTypes; /* what modules are fitted */
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} S3;
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struct {
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struct CmdHdr CmdHdr;
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u8 __undefined__;
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u8 PcModemStatus;
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u8 PcPortStatus;
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u8 PcSubCommand; /* commands like mem or register dump */
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u16 PcSubAddr; /* Address for command */
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u8 PcSubData[64]; /* Date area for command */
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} S4;
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struct {
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struct CmdHdr CmdHdr;
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u8 PcCommandText[1];
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u8 __crud__[20];
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u8 PcIDNum2; /* It had to go somewhere! */
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} S5;
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struct {
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struct CmdHdr CmdHdr;
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struct SamTop Topology[LINKS_PER_UNIT];
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} S6;
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} U1;
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};
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struct PktCmd_M {
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union {
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struct {
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struct {
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u8 PcCommand;
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union {
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u8 PcPhbNum;
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u8 PcLinkNum;
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u8 PcIDNum;
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} U0;
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} CmdHdr;
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struct {
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u16 NumPackets;
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u16 LoadBase;
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u16 CodeSize;
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} PcBootSequence;
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} S1;
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struct {
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u16 PcSequence;
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u8 PcBootData[RTA_BOOT_DATA_SIZE];
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} S2;
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struct {
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u16 __crud__;
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u8 PcUniqNum[4]; /* this is really a uint. */
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u8 PcModuleTypes; /* what modules are fitted */
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} S3;
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struct {
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u16 __cmd_hdr__;
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u8 __undefined__;
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u8 PcModemStatus;
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u8 PcPortStatus;
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u8 PcSubCommand;
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u16 PcSubAddr;
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u8 PcSubData[64];
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} S4;
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struct {
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u16 __cmd_hdr__;
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u8 PcCommandText[1];
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u8 __crud__[20];
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u8 PcIDNum2; /* Tacked on end */
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} S5;
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struct {
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u16 __cmd_hdr__;
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struct Top Topology[LINKS_PER_UNIT];
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} S6;
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} U1;
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};
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#define Command U1.S1.CmdHdr.PcCommand
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#define PhbNum U1.S1.CmdHdr.U0.PcPhbNum
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#define IDNum U1.S1.CmdHdr.U0.PcIDNum
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#define IDNum2 U1.S5.PcIDNum2
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#define LinkNum U1.S1.CmdHdr.U0.PcLinkNum
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#define Sequence U1.S2.PcSequence
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#define BootData U1.S2.PcBootData
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#define BootSequence U1.S1.PcBootSequence
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#define UniqNum U1.S3.PcUniqNum
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#define ModemStatus U1.S4.PcModemStatus
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#define PortStatus U1.S4.PcPortStatus
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#define SubCommand U1.S4.PcSubCommand
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#define SubAddr U1.S4.PcSubAddr
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#define SubData U1.S4.PcSubData
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#define CommandText U1.S5.PcCommandText
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#define RouteTopology U1.S6.Topology
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#define ModuleTypes U1.S3.PcModuleTypes
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#endif
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