1 /* 2 ** ----------------------------------------------------------------------------- 3 ** 4 ** Perle Specialix driver for Linux 5 ** Ported from existing RIO Driver for SCO sources. 6 * 7 * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 ** 23 ** Module : cmdpkt.h 24 ** SID : 1.2 25 ** Last Modified : 11/6/98 11:34:09 26 ** Retrieved : 11/6/98 11:34:20 27 ** 28 ** ident @(#)cmdpkt.h 1.2 29 ** 30 ** ----------------------------------------------------------------------------- 31 */ 32 #ifndef __rio_cmdpkt_h__ 33 #define __rio_cmdpkt_h__ 34 35 /* 36 ** overlays for the data area of a packet. Used in both directions 37 ** (to build a packet to send, and to interpret a packet that arrives) 38 ** and is very inconvenient for MIPS, so they appear as two separate 39 ** structures - those used for modifying/reading packets on the card 40 ** and those for modifying/reading packets in real memory, which have an _M 41 ** suffix. 42 */ 43 44 #define RTA_BOOT_DATA_SIZE (PKT_MAX_DATA_LEN-2) 45 46 /* 47 ** The boot information packet looks like this: 48 ** This structure overlays a PktCmd->CmdData structure, and so starts 49 ** at Data[2] in the actual pkt! 50 */ 51 struct BootSequence { 52 u16 NumPackets; 53 u16 LoadBase; 54 u16 CodeSize; 55 }; 56 57 #define BOOT_SEQUENCE_LEN 8 58 59 struct SamTop { 60 u8 Unit; 61 u8 Link; 62 }; 63 64 struct CmdHdr { 65 u8 PcCommand; 66 union { 67 u8 PcPhbNum; 68 u8 PcLinkNum; 69 u8 PcIDNum; 70 } U0; 71 }; 72 73 74 struct PktCmd { 75 union { 76 struct { 77 struct CmdHdr CmdHdr; 78 struct BootSequence PcBootSequence; 79 } S1; 80 struct { 81 u16 PcSequence; 82 u8 PcBootData[RTA_BOOT_DATA_SIZE]; 83 } S2; 84 struct { 85 u16 __crud__; 86 u8 PcUniqNum[4]; /* this is really a uint. */ 87 u8 PcModuleTypes; /* what modules are fitted */ 88 } S3; 89 struct { 90 struct CmdHdr CmdHdr; 91 u8 __undefined__; 92 u8 PcModemStatus; 93 u8 PcPortStatus; 94 u8 PcSubCommand; /* commands like mem or register dump */ 95 u16 PcSubAddr; /* Address for command */ 96 u8 PcSubData[64]; /* Date area for command */ 97 } S4; 98 struct { 99 struct CmdHdr CmdHdr; 100 u8 PcCommandText[1]; 101 u8 __crud__[20]; 102 u8 PcIDNum2; /* It had to go somewhere! */ 103 } S5; 104 struct { 105 struct CmdHdr CmdHdr; 106 struct SamTop Topology[LINKS_PER_UNIT]; 107 } S6; 108 } U1; 109 }; 110 111 struct PktCmd_M { 112 union { 113 struct { 114 struct { 115 u8 PcCommand; 116 union { 117 u8 PcPhbNum; 118 u8 PcLinkNum; 119 u8 PcIDNum; 120 } U0; 121 } CmdHdr; 122 struct { 123 u16 NumPackets; 124 u16 LoadBase; 125 u16 CodeSize; 126 } PcBootSequence; 127 } S1; 128 struct { 129 u16 PcSequence; 130 u8 PcBootData[RTA_BOOT_DATA_SIZE]; 131 } S2; 132 struct { 133 u16 __crud__; 134 u8 PcUniqNum[4]; /* this is really a uint. */ 135 u8 PcModuleTypes; /* what modules are fitted */ 136 } S3; 137 struct { 138 u16 __cmd_hdr__; 139 u8 __undefined__; 140 u8 PcModemStatus; 141 u8 PcPortStatus; 142 u8 PcSubCommand; 143 u16 PcSubAddr; 144 u8 PcSubData[64]; 145 } S4; 146 struct { 147 u16 __cmd_hdr__; 148 u8 PcCommandText[1]; 149 u8 __crud__[20]; 150 u8 PcIDNum2; /* Tacked on end */ 151 } S5; 152 struct { 153 u16 __cmd_hdr__; 154 struct Top Topology[LINKS_PER_UNIT]; 155 } S6; 156 } U1; 157 }; 158 159 #define Command U1.S1.CmdHdr.PcCommand 160 #define PhbNum U1.S1.CmdHdr.U0.PcPhbNum 161 #define IDNum U1.S1.CmdHdr.U0.PcIDNum 162 #define IDNum2 U1.S5.PcIDNum2 163 #define LinkNum U1.S1.CmdHdr.U0.PcLinkNum 164 #define Sequence U1.S2.PcSequence 165 #define BootData U1.S2.PcBootData 166 #define BootSequence U1.S1.PcBootSequence 167 #define UniqNum U1.S3.PcUniqNum 168 #define ModemStatus U1.S4.PcModemStatus 169 #define PortStatus U1.S4.PcPortStatus 170 #define SubCommand U1.S4.PcSubCommand 171 #define SubAddr U1.S4.PcSubAddr 172 #define SubData U1.S4.PcSubData 173 #define CommandText U1.S5.PcCommandText 174 #define RouteTopology U1.S6.Topology 175 #define ModuleTypes U1.S3.PcModuleTypes 176 177 #endif 178