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245 lines
10 KiB
C
245 lines
10 KiB
C
/*
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File: EgretEqu.h
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Contains: xxx put contents here xxx
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Written by: xxx put writers here xxx
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Copyright: © 1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<1> 6/3/92 RLM first checked in
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*/
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//************************************************************************
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// EGRET Manager Equates
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//
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// File: EgretEqu.h
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//
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// Contains: Equate definitions used by EgretMgr
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//
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// Written by: Greg Shcroeder
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//
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// Copyright: © 1990, 1992 by Apple Computer, Inc., all rights reserved.
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//
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// This file is used in these builds: Mac32
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//
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//
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// Change History (most recent first):
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//
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// <P2> 1/16/92 GS Update Egret Equates to include equates for the Cuda Firmware.
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// ———————————————————————————————————————————————————————————————————————————————————————
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// Pre-Pandora ROM comments begin here.
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// ———————————————————————————————————————————————————————————————————————————————————————
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//
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// To Do:
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//
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//************************************************************************
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//
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// Egret parameter block
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//
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// Egret Manager Parameter Block
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typedef struct {
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Byte pbCmdType;
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Byte pbCmd;
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union {
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long pblong;
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short pbword[2];
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Byte pbbyte[4];
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} pbParm;
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short pbByteCnt;
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Ptr pbBufPtr;
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Byte pbFlags; /*Was unsigned Byte*/
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Byte pbSpareFlags; /*Was unsigned Byte*/
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short pbResult;
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Ptr pbCompletion;
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} EgretPB, *EgretPBPtr;
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#define EgretPBSize sizeof(EgretPB)
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//________________________________________________________________________________________________
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// Egret Globals
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typedef struct {
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short flags; // Egret Manager state flags
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short sendHdrCnt; // # bytes in command header to send
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Ptr sendHdrPtr; // ptr into command header
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short sendDataCnt; // # data bytes to send for current cmd
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Ptr sendDataPtr; // ptr to next data byte to send
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short rcvHdrCnt; // # bytes to receive in response header
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short rcvHdrIndex; // current index into receive header buffer
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short rcvDataCnt; // # data bytes to receive
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long rcvDataPtr; // ptr into receive buffer
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Byte rcvHeader[12]; // temp buffer for response packet
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Ptr completion; // ptr to completion routine for current packet
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Ptr tickComp; // tick packet completion routine
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Ptr PDMComp; // Eclipse PowerDown Message Handler Vector
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Ptr adbPb; // ptr to ADB auto response param block
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Ptr curPb; // ptr to current param block
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Byte workPb[EgretPBSize]; // local parameter block for unsolicited packets
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} EgretGlobals, *EgretGlblPtr;
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#define EgretGlobSize sizeof(EgretGlobals)
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//________________________________________________________________________________________________
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// Response Packet
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//
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typedef struct { // record describing rcvHeader
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Byte length; // number of bytes in rcvHeader (4+data count)
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Byte respType; // packet type (0=ADB, 3=ticks)
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Byte respFlag; // flags
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Byte respCmd; // command
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Byte respData[8]; // data bytes that came in (ticks, adb data)
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} respPacket;
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//________________________________________________________________________________________________
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// Record Descriptor for Response Packet Header
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//
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typedef struct { // record descriptor for Response packet Header
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Byte RespAttn; // Attention Byte
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Byte RespPktType; // Packet type
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Byte RespFlags; // Flags byte
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Byte RespCmd; // Command number
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Byte RespData[8]; // Data area for ADB or Time data
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} RespHeader;
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//________________________________________________________________________________________________
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// Egret8 and Caboose Bit definitions
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#define xcvrSes 3 // ADBu session PB3
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#define viaFull 4 // Via full indicator PB4
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#define sysSes 5 // System session is PB5
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//________________________________________________________________________________________________
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// Cuda VIA Bit Definitions
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#define TReq 3 // CUDA transaction PB3
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#define vByteAck 4 // acknowledge byte transfer PB4
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#define TIP 5 // System transaction PB5
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#define ACRmode %00001100 // shift reg mode (input with ext clock)
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#define SRdir 4 // shift reg direction bit (0=input, 1=output)
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// from Cuda, from System
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#define vShift 2 // shift reg interrupt bit
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//
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//_______________________________________________________________________
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// Egret Manager Flag Bit Definitions
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#define busy 0 // flag bit 0 means we're busy with a packet
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#define openData 1 // flag bit 1 means this is an open ended read response
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#define BadPkt 2 // flag bit 2 means 1= Error Packet in progress
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#define PBPending 3 // PB aborted and pending
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#define IdleAckFlag 4 // flag bit 4 set means an IdleAck pkt expected (Cuda)
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//
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//_______________________________________________________________________
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// Flag Bits in the ADB Status byte returned from the ADB processor
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#define EgSRQ 0 // bit 0, 1=SRQ asserted
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#define EgTimeOut 1 // bit 1, 1=Active device did not have data available
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#define EgSRQError 2 // bit 2, 1=Device asserted excessive SRQ period
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#define EgBusError 3 // bit 3, 1=Timing error in bit cell was detected
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#define EgAutoPoll 6 // bit 6, 1=Data is from an Auto Poll
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#define EgResponse 7 // bit 7, 1=Response packett in process
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//________________________________________________________________________________________________
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// Elsie/Erickson DFAC initial settings
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#define ElsieDFAC 0x0057
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#define EricksonDFAC 0x0000
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#define EclipseDFAC 0x0010 // initial dfac values for Eclipse and Spike <t3> djw
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#define SpikeDFAC 0x0010
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//________________________________________________________________________________________________
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// Packet types
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#define adbPkt 0x0000 // ADB request packet type
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#define pseudoPkt 0x0001 // pseudo commands packet type
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#define errorPkt 0x0002 // error packets type
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#define tickPkt 0x0003 // Egret 1 second tick packet type
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#define PDMPkt 0x0004 // PowerDown Message Packet (From Egret) <T2>
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#define PDMVectPkt 0x00FE // Eclipse Init PowerDown Message vector <T2>
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#define specialPkt 0x00FF // used to install ADB handler/pb
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//________________________________________________________________________________________________
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// The following equates are ShutDown Initiator codes.
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//
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#define FrmChassisSw 0x01 // Initiate ShutDown from Chassis Power Switch
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#define FrmKeyBdSw 0x02 // Initiate ShutDown from KeyBoard Switch
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#define FrmKeySw 0x03 // Initiate ShutDown from Chassis Power Switch
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//
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//________________________________________________________________________________________________
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// Pseudo commands
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#define NopCmd 0x00
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#define APoll 0x01 // start/stop autopoll
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#define Rd6805addr 0x02 // read 6805 address
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#define RdTime 0x03 // read real time clock pseudo commmand
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#define RdRomSize 0x04 // get romsize command
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#define RdRomBase 0x05 // get rom base address
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#define RdRomHeader 0x06 // get rom header address
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#define RdPram 0x07 // read parameter ram
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#define Wr6805Addr 0x08 // write 6805 address
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#define WrTime 0x09 // write time command
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#define PwrDown 0x0A // Erickson powerdown command
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#define WrPwrupTime 0x0B // Erickson set powerup time
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#define WrPram 0x0C // write parameter ram
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#define MonoReset 0x0D // Monostable reset
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#define WrDFAC 0x0E // write DFAC
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#define WrIIC 0x0E // write IIC
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#define Egretdiags 0x0F // run egret diagnostics
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#define RdCtlPanel 0x10 // Sense control panel enable
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#define RdBattery 0x10 // Sense if battery was changed <P1>
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#define ResetEgret 0x11 // Egret Cold start command
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#define EnDisVpp 0x12 // ELSIE enable/disabe VPP
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#define SetIPL 0x12 // Set IPL level <P1>
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#define EnDisFiles 0x13 // enable/disable file server flag
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#define SetAutopoll 0x14 // set autopoll rate
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#define RdPramSize 0x15 // get parameter ram size
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#define RdAutoRate 0x16 // get autopoll rate
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#define WrBusDelay 0x17 // set bus delay constant
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#define RdBusDelay 0x18 // get busdelay constant
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#define WrDevList 0x19 // set ADB device list
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#define RdDevList 0x1A // get ADB device list
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#define Wr1SecMode 0x1B // set 1 second interrupt mode
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#define EnDisKbdNmi 0x1C // enable/disable keyboard NMI
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#define EnDisParse 0x1D // enable/disable post parse R2 A2
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#define WrHangTout 0x1E // set hang threshold
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#define RdHangTout 0x1F // get hang threshold
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#define SetDefDFAC 0x20 // Set Default DFAC String <T2>
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#define EnDisPDM 0x21 // Enable/Disable PowerDown Message <T2>
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#define DFACorIIC 0x22 // Std DFAC or IIC Support <P1>
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#define WakeUpMode 0x23 // Enable/Disable WakeUpMode <P1>
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#define TimerTickle 0x24 // ShutDown Timer Tickle <P1>
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#define MaxPseudoCmd TimerTickle // largest possible pseudo command number <P1>
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//
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//__________________________________________________________________________________________________
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// MISC Equates
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#define InvPseudo 0x0202 // Invalid Pseudo packet <6>
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#define InvPkt 0x0201 // Invalid Packet type <6>
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#define Enable 0x00FF // Nonzero to enable Egret functions <T2>
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#define Disable 0x0000 // Zero to disable Egret functions <T2>
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#define MaxRetries 0x0100 // 256 Retries to communicate with Egret in SendEgretCmd<9>
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#define MaxTout 0x2000 // timeout waiting for Vsr irq from Egret 10millsecs<9>
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#define DelayCnt 0x0068 // count for register base delay100us routine
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#define EclipseDelay 00025 // Extra delay required for Eclipse <T2>
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#define PollStackSize 0x0020 // 32 byte buffer for SCC Poll data
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#define Mode3Clock 0x0003 // Mode 3 packets for clock data
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#define MRUAddr 0x00B3 // MRU address in Egret/Caboose <10>
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#define LRUAddr 0x00B4 // LRU address in Egret/Caboose <10>
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#define CMRUAddr 0x00B2 // MRU address in Cuda <P1>
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#define CLRUAddr 0x00B3 // LRU address in Cuda <P1>
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