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309 lines
13 KiB
Plaintext
309 lines
13 KiB
Plaintext
;
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; File: NewAgeEqu.a
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;
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; Contains: This is the equate file for the NewAge Floppy Disk Controller.
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;
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; Written by: Robert Polic
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;
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; Copyright: © 1992-1993 by Apple Computer, Inc., all rights reserved.
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;
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; This file is used in these builds:
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;
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; Change History (most recent first):
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;
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; <SM8> 6/14/93 kc Roll in Ludwig.
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; <LW7> 5/19/93 WS Changed reties to 25 except for verification, which stays as 3.
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; <LW6> 5/10/93 WS The PreComp value were correct, the measurement was wrong,
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; changing it back to vakue in LW4.
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; <LW5> 5/1/93 WS Change the precom value since the Newage doc. specify them
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; incorrectly.
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; <LW4> 3/24/93 WS Change the number of retries back to 3 since things are working
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; reliably now.
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; <LW3> 3/8/93 WS Add allocation for DT queue in template.
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; <LW2> 12/14/92 WS Removed some flags that are no longer needed.
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; <SM7> 11/30/92 WS Added Mode32 flag which is use to conditional compile code that
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; is need to switch between 24 and 32 bit mode. Since Cyclone is
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; alway 32 bit these code are not necessary. Change the Gap Skip
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; Length to $1B, the recommand value since NEC have fixed a bug
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; for Newage 1.4 that load this value into the sector counter.
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; Added some equ to remove more hard coded values.
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; <SM6> 10/7/92 WS Add NoBug for conditional assembling. This will be obsolete
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; once NEC fix the bug in Read A Track.
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; <SM5> 10/7/92 WS Add a whole bunch of equates to be use with the driver.
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; <SM4> 9/23/92 WS Fix Buffersize so that MTMode flag determind how big it ought to
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; be.
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; <SM3> 8/28/92 WS BufferSize is always twice the SectorsCylinder
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; <SM2> 7/24/92 RLM update to supermario
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; <P2> 7/2/92 RMP Added new equates.
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; <1> 4/10/92 RMP first checked in
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;
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; To Do:
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;
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PolledMode EQU 0 ; Run driver in polled mode.
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MTMode EQU 0 ; Run driver in multi-track mode.
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RetryCount EQU 25 ; Number of retries.
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VerifyRetry EQU 3 ; Number of retries during disk verification.
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SectorsCylinder EQU 36 ; Max. number of sectors/sideÉ
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; Éfor the largest supported drive.
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; For Typhoon (2.8): 36
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; For SuperDrive (1.4): 18
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; For 800K: 12
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IF MTMode THEN
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BufferSize EQU SectorsCylinder * 2 ; Size of buffer in blocks.
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ELSE
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BufferSize EQU SectorsCylinder ; Size of buffer in blocks.
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ENDIF
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BlockSize EQU 516 ; Actually block are 512 bytes <SM7>
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; 4 extra bytes are need for DiskCopy. <SM7>
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WaitTime EQU 3*60 ; 3 second timeout for motor. <SM5>
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NewAge32 EQU $50F2A000 ; FDC address in 32 bit space.
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pscControl32 EQU $50F31C30 ; PSC control register in 32 bit space.
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pscSet032 EQU $50F32060 ; Base of DMA Set0 in 32 bit space.
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NewAgeVars EQU $134 ; Storage for variables.
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VIA2IER EQU $50f03c00 ; <SM5>
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VIA2IFR EQU $50f03a00 ; <SM5>
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FloppyEntry EQU 5*4 ; Floppy is the five driver in table <SM7>
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; Each entry is a long word. <SM7>
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EnableFDCInt EQU $A0 ; VIA2IER Newage interrupt enable. SM5>
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DisableFDCInt EQU $20 ; VIA2IER Newage interrupt flag. <SM5>
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FDCInt EQU 5 ; Newage Interrupt bit <SM5>
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; FDC register offsetsÉ
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fdcMSR EQU $101 ; Main status register.
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fdcDRR EQU $101 ; Data rate register.
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fdcDATA EQU $141 ; Data register.
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; Register bitsÉ
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fRQM EQU 7 ; MSR - Request for master.
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fDIO EQU 6 ; MSR - Direction I/O.
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fExecute EQU 5 ; MSR - For polled I/O.
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fCmdBsy EQU 4 ; MSR - Command busy.
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fDrv1In EQU 3 ; MSR - Drive 1 installed.
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fDrv0In EQU 2 ; MSR - Drive 0 installed.
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fDrv1Bsy EQU 1 ; MSR - Drive 1 busy.
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fDrv0Bsy EQU 0 ; MSR - Drive 0 busy.
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fReset EQU 7 ; DRR - Reset FDC.
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fStandBy EQU 6 ; DRR - Enter stand by mode.
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; Precomp valuesÉ
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PreCompOffset EQU 2 ; Precomp bits starts with bit 2. <SM5>
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ApplePreComp EQU %011 ; For Apple MFM. <SM5>
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NoPreComp EQU %111 ; 0 ns for precomp. <SM5>
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; Data rate valuesÉ
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DataRateOffset EQU 0 ; Data rate bits start with bit 0. <SM5>
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dr500 EQU %00 ; 500 or 489.6 kbps. <SM5>
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dr300 EQU %01 ; 300 kbps. <SM5>
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dr250 EQU %10 ; 250 kbps. <SM5>
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dr1000 EQU %11 ; 1000 or 1250 kbps. <SM5>
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fMT EQU 7 ; Multi-track bit.
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fFM EQU 6 ; MFM/GCR bit.
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fHd EQU 2 ; Side 1 if set <SM5>
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; Cause of Newage InterruptÉ bits D7 and D6 of status 0 <SM5>
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IntStatOffset EQU 6 ; Interrupt bits starts at bit 6. <SM5>
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NrmlTrmnt EQU %00 ; Normal Termination of command. <SM5>
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AbnrmlTrmnt EQU %01 ; Abnormal Termination of command. <SM5>
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InvldCmnd EQU %10 ; Invalid commmand. <SM5>
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CssttChng EQU %11 ; /CSTIN state change. <SM5>
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; Status Register 0É <SM5>
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fSeek EQU 5 ; Status 0 - Set after seek or recal. <SM5>
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fFDDErr EQU 4 ; Status 0 - Set if error at FDD occurs. <SM5>
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fReady EQU 3 ; Status 0 - Set if FDD not ready. <SM5>
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fDiskStatus EQU 1 ; Status 0 - Clear after disk insert. <SM5>
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fDrive EQU 0 ; Status 0 - Drive select bit. <SM5>
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; Status Register 1É <SM5>
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fEndOfCylndr EQU 7 ; Status 1 - Acess beyond last cylinder <SM5>
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fDataErr EQU 5 ; Status 1 - Checksum error. <SM5>
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fOvrRun EQU 4 ; Status 1 - Over or Under Run. <SM5>
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fNoData EQU 2 ; Status 1 - Can't found sector. <SM5>
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fWrtPrtct EQU 1 ; Status 1 - Write protected. <SM5>
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fNoAddrMrk EQU 0 ; Status 1 - Missing Address Mark. <SM5>
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; Status Register 2É <SM5>
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fCntrlMrk EQU 6 ; Status 2 - Detected delete data mark. <SM5>
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fDataField EQU 5 ; Status 2 - Checksum error at data field. <SM5>
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fNoCylndr EQU 4 ; Status 2 - Can't find cylinder. <SM5>
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fBadCylndr EQU 1 ; Status 2 - Bad Cylinder. <SM5>
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fNoDataAddrMrk EQU 0 ; Status 2 - Missing data address mark. <SM5>
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; Status Register 3É <SM5>
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fWriteStatus EQU 6 ; Write Protect. <SM5>
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fDriveStatus EQU 3 ; Set if 2MD 0r 4MD present. <SM5>
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fMode EQU 2 ; Mode ID of FDD. <SM5>
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; Format CodeÉ
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formatGCR400K EQU $12 ; GCR format, 400K. <SM5>
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formatGCR2_1 EQU $22 ; GCR format, 800K 2 to 1 interleave. <SM5>
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formatGCR4_1 EQU $24 ; GCR format, 800K 4 to 1 interleave. <SM5>
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formatMFM500 EQU $02 ; MFM format code, 500kbps. <SM5>
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; Format Table equatesÉ
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ftBlocks EQU 2 ; Offset to number of blocks. <SM5>
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ftFlags EQU 4 ; Upper nibble is flags. <SM5>
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ftSides EQU 4 ; Lower nibble is sides. <SM5>
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ftSectors EQU 5 ; Offset to number of sectors per track. <SM5>
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ftFormatByte EQU 8 ; <SM5>
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ftGap3Length EQU 9 ; Offset to number of bytes in Gap 3. <SM5>
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ftSyncGroups EQU 9 ; Offset to number of sync groups. <SM5>
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ftFormatCode EQU 10 ; Offset to format code. <SM5>
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ftNextTable EQU 12 ; Offset to next table (each entry 12 bytes).<SM5>
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; Interleave Table equatesÉ
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itNextZone EQU 12 ; Offset to next speed zone for GCR interleave table. <SM5>
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itSectors EQU 10 ; Offset to sector/zone in GCR side tables. <SM5>
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;MiscÉ
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GCRCylndrs EQU 16 ; Number of Cylinders per GCR speed zone. <SM5>
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MFMCylndrs EQU 80 ; Number of Cylinders in MFM speed zone. <SM5>
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DiskCylndrs EQU 80 ; Number od cylinders per disk. <SM5>
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GSL EQU $1B ; Gap skip lenght. <SM5>
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vertical EQU $3 ; bits to set to enable vertical mode <SM7>
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; PSC register offsetsÉ
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pscAddress EQU $00 ; Offset to address register.
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pscCount EQU $04 ; Offset to count register.
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pscStatus EQU $08 ; Offset to status register.
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; PSC register bitsÉ
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pscTermCnt EQU 10 ; Status - Terminal count.
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pscDir EQU 9 ; Status - PSC Channel Direction bit, set = read. <SM5>
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pscEnable EQU 11 ; Status - PSC Channel Enable bit. <SM5>
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pscCIRQ EQU 8 ; Control - PSC channel interrup request. <SM5>
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pscFlush EQU 9 ; Control - PSC pause. <SM5>
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pscPause EQU 10 ; Control - PSC flush. <SM5>
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pscSWReset EQU 11 ; Control - PSC software reset. <SM5>
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pscBErr EQU 13 ; Control - PSC bus error. <SM5>
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pscFrozen EQU 14 ; Control - PSC frozen. <SM5>
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pscSense EQU 15 ; Control - PSC Sense bit. <SM5>
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; FDC commandsÉ (* Available only in Apple mode)
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Configure EQU %00010011 ; Configure FDC.
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DisableDPLL EQU %00001011 ; Disable digital phase lock loop.*
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DumpReg EQU %00001110 ; Dump registers.
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EjectFloppy EQU %01010010 ; Eject disk.*
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EnableDPLL EQU %10001011 ; Enable digital phase lock loop.*
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Format EQU %01001101 ; Format a track.
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FormatWrite EQU %01000001 ; Format and write track.*
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PerpMode EQU %00010010 ; Perpendicular mode.
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RawDump EQU %01011110 ; Raw track dump.*
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IF MTMode THEN
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ReadData EQU %11000110 ; Read data.
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ELSE
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ReadData EQU %01000110 ; Read data.
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ENDIF
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ReadDelData EQU %01001100 ; Read deleted data.
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ReadGCRID EQU %00001010 ; Read ID.
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ReadMFMID EQU %01001010 ; Read ID.
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ReadTrack EQU %01000010 ; Read track.
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Recalibrate EQU %00000111 ; Recalibrate.
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RelSeek EQU %10001111 ; Relative seek.
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Revision EQU %00100000 ; Firmware and hardware revision level.
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ScanEqual EQU %01010001 ; Scan and compare equal.
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ScanHighEqual EQU %01011101 ; Scan and compare greater or equal.
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ScanLowEqual EQU %01011001 ; Scan and compare less or equal.
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Seek EQU %00001111 ; Seek to a track.
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SelectDriveType EQU %00110010 ; Select drive type.
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SenseDrvStatus EQU %00000100 ; Sense drive status.
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SenseIntStatus EQU %00001000 ; Sense interrupt status.
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SetDriveGCR EQU %00011100 ; Enable GCR.*
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SetDriveMFM EQU %01011100 ; Enable MFM.*
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SetEnableOff EQU %00011011 ; Turn off drive enable.*
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SetEnableOn EQU %10011011 ; Turn on drive enable.*
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SetMotorOff EQU %00011010 ; Turn off drive motor.*
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SetMotorOn EQU %10011010 ; Turn on drive motor.*
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Specify EQU %00000011 ; Specify parameters.
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Verify EQU %01110110 ; Verify sector.
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Version EQU %00010000 ; Get FDC version.
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WriteData EQU %01000101 ; Write data.
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WriteDelData EQU %01001001 ; Write deleted data.
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; Drive interface equatesÉ
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drvStandard EQU 0 ; Standard FDD interface.
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drv13MB EQU 1 ; 13 megabyte FDD interface.
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drvReserved EQU 2 ; Undefined.
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drvApple EQU 3 ; Apple FDD interface.
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; Drive type equatesÉ
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fddNone EQU 0 ; No drive.
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fddUnknown EQU 1 ; Unknown drive.
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fddMac400 EQU 2 ; Single sided 400K drive.
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fddMac800 EQU 3 ; Double sided 800K drive.
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fddSuperDrive EQU 4 ; 2-Meg SuperDrive.
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fddTyphoon EQU 5 ; 4-Meg Typhoon.
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fdd13Meg EQU 6 ; Reserved.
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; Floppy media equatesÉ
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mNone EQU 0 ; No media.
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mUnknown EQU 1 ; Unknown media.
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mLD EQU 2 ; Low density.
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mHD EQU 3 ; High density.
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mED EQU 4 ; Extended density.
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; Floppy format equatesÉ
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fNone EQU 0 ; No disk.
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fBlank EQU 1 ; Unformatted.
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f400K EQU 2 ; 400K GCR.
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f800K EQU 3 ; 800K GCR.
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fProDOS EQU 4 ; 800K GCR (ProDOS).
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fUnknownGCR EQU 5 ; Unknown GCR.
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f720K EQU 6 ; 720K MFM.
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f1440K EQU 7 ; 1.4 MFM.
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f2880K EQU 8 ; 2.8 MFM (Perpendicular).
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f10Meg EQU 9 ; Reserved.
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; Floppy info recordÉ
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FloppyRecord RECORD 0
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fNextRecord DS.L 1 ; Pointer to next floppy info record.
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fFormat DS.W 1 ; Format type (none,400,720,800,1440,2880).
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fMediaType DS.W 1 ; Media type (LD, HD or ED).
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fDriveType DS.W 1 ; Drive type (800K, SuperDrive, Typhoon).
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fDriveNum DS.W 1 ; Drive number.
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fDriveSelect DS.W 1 ; Drive select (0 or 1).
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fDriveQueue DS.L 1 ; Drive queue element.
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fBuffer DS.L 1 ; Pointer to sector buffer.
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fStart DS.W 1 ; Starting sector of buffer.
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fCount DS.W 1 ; Number of sectors in buffer.
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fMotor DS.W 1 ; Motor on flag.
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fLastAccess DS.L 1 ; Last time drive was accessed.
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fSoftErrors DS.W 1 ; Number of soft errors since drvr opened.
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fHardErrors DS.W 1 ; Number of hard errors since drvr opened.
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fResult DS.W 1 ; I/O result.
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fCompletion DS.L 1 ; Pointer to driver completion routine.
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fDCE DS.L 1 ; Pointer to DCE.
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fDataBfr DS.L 1 ; Data buffer.
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fCounter DS.L 1 ; Counter.
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fPosition DS.L 1 ; Current position.
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fStatus0 DS.B 1 ; Status 0.
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fStatus1 DS.B 1 ; Status 1.
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fStatus2 DS.B 1 ; Status 2.
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fStatus3 DS.B 1 ; Status 3.
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fCylinder DS.B 1 ; Cylinder.
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fHead DS.B 1 ; Head.
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fSector DS.B 1 ; Sector.
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fData DS.B 1 ; Data length code.
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fCode DS.B 1 ; Format code.
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fLastSector DS.B 1 ; High sector number.
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fRetries DS.B 1 ; Number of retries.
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fRetrySeed DS.B 1 ; Max. number of retries to perform.
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fError1 DS.L 2 ; Last three errors.
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fError2 DS.L 2
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fError3 DS.L 2
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DTQE DS.b 20 ; Deferred task queue element
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DTInstalled DS.b 1 ; flag, non-zero if DT installed
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fRecSize EQU * ; Size of record.
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ENDR
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