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/* |
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* macos_util.h - MacOS definitions/utility functions |
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* |
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* SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig |
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifndef MACOS_UTIL_H |
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#define MACOS_UTIL_H |
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|
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#include "cpu_emulation.h" |
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#include "thunks.h" |
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#include <stddef.h> |
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|
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|
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/* |
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* General definitions |
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*/ |
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|
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struct Point { |
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int16 v; |
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int16 h; |
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}; |
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|
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struct Rect { |
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int16 top; |
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int16 left; |
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int16 bottom; |
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int16 right; |
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}; |
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|
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|
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/* |
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* Queues |
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*/ |
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|
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enum { // Queue types |
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dummyType = 0, |
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vType = 1, |
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ioQType = 2, |
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drvQType = 3, |
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evType = 4, |
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fsQType = 5, |
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sIQType = 6, |
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dtQType = 7, |
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nmType = 8 |
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}; |
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|
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enum { // QElem struct |
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qLink = 0, |
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qType = 4, |
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qData = 6 |
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}; |
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|
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enum { // QHdr struct |
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qFlags = 0, |
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qHead = 2, |
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qTail = 6 |
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}; |
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|
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|
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/* |
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* Definitions for Deferred Task Manager |
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*/ |
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|
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enum { // DeferredTask struct |
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dtFlags = 6, |
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dtAddr = 8, |
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dtParam = 12, |
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dtReserved = 16 |
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}; |
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|
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|
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/* |
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* Definitions for Device Manager |
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*/ |
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|
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// Error codes |
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enum { |
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noErr = 0, |
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controlErr = -17, /* I/O System Errors */ |
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statusErr = -18, /* I/O System Errors */ |
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readErr = -19, /* I/O System Errors */ |
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writErr = -20, /* I/O System Errors */ |
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badUnitErr = -21, /* I/O System Errors */ |
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unitEmptyErr = -22, /* I/O System Errors */ |
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openErr = -23, /* I/O System Errors */ |
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closErr = -24, /* I/O System Errors */ |
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abortErr = -27, /* IO call aborted by KillIO */ |
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notOpenErr = -28, /* Driver not open */ |
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dskFulErr = -34, /* disk full */ |
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nsvErr = -35, /* no such volume */ |
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ioErr = -36, /* I/O error (bummers) */ |
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bdNamErr = -37, /* bad name */ |
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fnOpnErr = -38, /* file not open */ |
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eofErr = -39, /* End-of-file encountered */ |
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posErr = -40, /* tried to position to before start of file (r/w) */ |
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tmfoErr = -42, /* too many files open */ |
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fnfErr = -43, /* file not found */ |
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wPrErr = -44, /* diskette is write protected. */ |
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fLckdErr = -45, /* file is locked */ |
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fBsyErr = -47, /* file busy, dir not empty */ |
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dupFNErr = -48, /* duplicate filename already exists */ |
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paramErr = -50, /* error in user parameter list */ |
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rfNumErr = -51, /* bad ioRefNum */ |
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permErr = -54, /* permission error */ |
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nsDrvErr = -56, /* no such driver number */ |
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extFSErr = -58, /* external file system */ |
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noDriveErr = -64, /* drive not installed */ |
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offLinErr = -65, /* r/w requested for an off-line drive */ |
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noNybErr = -66, /* couldn't find 5 nybbles in 200 tries */ |
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noAdrMkErr = -67, /* couldn't find valid addr mark */ |
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dataVerErr = -68, /* read verify compare failed */ |
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badCksmErr = -69, /* addr mark checksum didn't check */ |
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badBtSlpErr = -70, /* bad addr mark bit slip nibbles */ |
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noDtaMkErr = -71, /* couldn't find a data mark header */ |
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badDCksum = -72, /* bad data mark checksum */ |
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badDBtSlp = -73, /* bad data mark bit slip nibbles */ |
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wrUnderrun = -74, /* write underrun occurred */ |
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cantStepErr = -75, /* step handshake failed */ |
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tk0BadErr = -76, /* track 0 detect doesn't change */ |
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initIWMErr = -77, /* unable to initialize IWM */ |
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twoSideErr = -78, /* tried to read 2nd side on a 1-sided drive */ |
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spdAdjErr = -79, /* unable to correctly adjust disk speed */ |
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seekErr = -80, /* track number wrong on address mark */ |
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sectNFErr = -81, /* sector number never found on a track */ |
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fmt1Err = -82, /* can't find sector 0 after track format */ |
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fmt2Err = -83, /* can't get enough sync */ |
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verErr = -84, /* track failed to verify */ |
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memFullErr = -108, |
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dirNFErr = -120 /* directory not found */ |
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}; |
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|
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// Misc constants |
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enum { |
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goodbye = -1, /* heap being reinitialized */ |
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|
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ioInProgress = 1, /* predefined value of ioResult while I/O is pending */ |
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aRdCmd = 2, /* low byte of ioTrap for Read calls */ |
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aWrCmd = 3, /* low byte of ioTrap for Write calls */ |
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asyncTrpBit = 10, /* trap word modifier */ |
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noQueueBit = 9, /* trap word modifier */ |
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|
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dReadEnable = 0, /* set if driver responds to read requests */ |
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dWritEnable = 1, /* set if driver responds to write requests */ |
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dCtlEnable = 2, /* set if driver responds to control requests */ |
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dStatEnable = 3, /* set if driver responds to status requests */ |
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dNeedGoodBye = 4, /* set if driver needs time for performing periodic tasks */ |
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dNeedTime = 5, /* set if driver needs time for performing periodic tasks */ |
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dNeedLock = 6, /* set if driver must be locked in memory as soon as it is opened */ |
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|
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dOpened = 5, /* driver is open */ |
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dRAMBased = 6, /* dCtlDriver is a handle (1) or pointer (0) */ |
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drvrActive = 7, /* driver is currently processing a request */ |
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|
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rdVerify = 64, |
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|
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fsCurPerm = 0, // Whatever is currently allowed |
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fsRdPerm = 1, // Exclusive read |
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fsWrPerm = 2, // Exclusive write |
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fsRdWrPerm = 3, // Exclusive read/write |
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fsRdWrShPerm = 4, // Shared read/write |
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|
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fsAtMark = 0, // At current mark |
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fsFromStart = 1, // Set mark rel to BOF |
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fsFromLEOF = 2, // Set mark rel to logical EOF |
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fsFromMark = 3, // Set mark rel to current mark |
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|
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sony = 0, |
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hard20 = 1 |
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}; |
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|
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enum { /* Large Volume Constants */ |
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kWidePosOffsetBit = 8, |
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kMaximumBlocksIn4GB = 0x007FFFFF |
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}; |
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|
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enum { // IOParam struct |
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ioTrap = 6, |
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ioCmdAddr = 8, |
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ioCompletion = 12, |
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ioResult = 16, |
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ioNamePtr = 18, |
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ioVRefNum = 22, |
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ioRefNum = 24, |
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ioVersNum = 26, |
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ioPermssn = 27, |
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ioMisc = 28, |
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ioBuffer = 32, |
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ioReqCount = 36, |
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ioActCount = 40, |
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ioPosMode = 44, |
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ioPosOffset = 46, |
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ioWPosOffset = 46, // Wide positioning offset when ioPosMode has kWidePosOffsetBit set |
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SIZEOF_IOParam = 50 |
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}; |
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|
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enum { // CntrlParam struct |
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csCode = 26, |
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csParam = 28 |
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}; |
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|
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enum { // DrvSts struct |
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dsTrack = 0, |
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dsWriteProt = 2, |
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dsDiskInPlace = 3, |
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dsInstalled = 4, |
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dsSides = 5, |
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dsQLink = 6, |
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dsQType = 10, |
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dsQDrive = 12, |
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dsQRefNum = 14, |
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dsQFSID = 16, |
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dsTwoSideFmt = 18, |
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dsNewIntf = 19, |
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dsDiskErrs = 20, |
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dsMFMDrive = 22, |
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dsMFMDisk = 23, |
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dsTwoMegFmt = 24 |
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}; |
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|
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enum { // DrvSts2 struct |
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dsDriveSize = 18, |
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dsDriveS1 = 20, |
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dsDriveType = 22, |
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dsDriveManf = 24, |
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dsDriveChar = 26, |
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dsDriveMisc = 28, |
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SIZEOF_DrvSts = 30 |
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}; |
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|
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enum { // DCtlEntry struct |
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dCtlDriver = 0, |
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dCtlFlags = 4, |
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dCtlQHdr = 6, |
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dCtlPosition = 16, |
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dCtlStorage = 20, |
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dCtlRefNum = 24, |
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dCtlCurTicks = 26, |
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dCtlWindow = 30, |
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dCtlDelay = 34, |
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dCtlEMask = 36, |
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dCtlMenu = 38, |
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dCtlSlot = 40, |
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dCtlSlotId = 41, |
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dCtlDevBase = 42, |
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dCtlOwner = 46, |
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dCtlExtDev = 50, |
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dCtlFillByte = 51, |
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dCtlNodeID = 52 |
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}; |
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|
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|
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/* |
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* Definitions for native Device Manager |
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*/ |
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|
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// Registry EntryID |
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struct RegEntryID { |
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uint32 contents[4]; |
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}; |
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|
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// Command codes |
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enum { |
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kOpenCommand = 0, |
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kCloseCommand = 1, |
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kReadCommand = 2, |
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kWriteCommand = 3, |
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kControlCommand = 4, |
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kStatusCommand = 5, |
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kKillIOCommand = 6, |
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kInitializeCommand = 7, /* init driver and device*/ |
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kFinalizeCommand = 8, /* shutdown driver and device*/ |
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kReplaceCommand = 9, /* replace an old driver*/ |
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kSupersededCommand = 10, /* prepare to be replaced by a new driver*/ |
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kSuspendCommand = 11, /* prepare driver to go to sleep*/ |
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kResumeCommand = 12 /* wake up sleeping driver*/ |
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}; |
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|
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// Command kinds |
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enum { |
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kSynchronousIOCommandKind = 0x00000001, |
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kAsynchronousIOCommandKind = 0x00000002, |
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kImmediateIOCommandKind = 0x00000004 |
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}; |
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|
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|
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/* |
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* Definitions for Mixed Mode Manager |
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*/ |
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|
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typedef uint32 ProcInfoType; |
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typedef int8 ISAType; |
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typedef uint16 RoutineFlagsType; |
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typedef uint32 ProcPtr; |
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typedef uint8 RDFlagsType; |
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|
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struct RoutineRecord { |
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ProcInfoType procInfo; /* calling conventions */ |
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int8 reserved1; /* Must be 0 */ |
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ISAType ISA; /* Instruction Set Architecture */ |
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RoutineFlagsType routineFlags; /* Flags for each routine */ |
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ProcPtr procDescriptor; /* Where is the thing weĠre calling? */ |
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uint32 reserved2; /* Must be 0 */ |
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uint32 selector; /* For dispatched routines, the selector */ |
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}; |
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|
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struct RoutineDescriptor { |
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uint16 goMixedModeTrap; /* Our A-Trap */ |
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int8 version; /* Current Routine Descriptor version */ |
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RDFlagsType routineDescriptorFlags; /* Routine Descriptor Flags */ |
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uint32 reserved1; /* Unused, must be zero */ |
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uint8 reserved2; /* Unused, must be zero */ |
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uint8 selectorInfo; /* If a dispatched routine, calling convention, else 0 */ |
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uint16 routineCount; /* Number of routines in this RD */ |
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RoutineRecord routineRecords[1]; /* The individual routines */ |
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}; |
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|
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struct SheepRoutineDescriptor |
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: public SheepVar |
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{ |
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SheepRoutineDescriptor(ProcInfoType procInfo, uint32 procedure) |
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: SheepVar(sizeof(RoutineDescriptor)) |
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{ |
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const uintptr desc = addr(); |
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Mac_memset(desc, 0, sizeof(RoutineDescriptor)); |
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WriteMacInt16(desc + offsetof(RoutineDescriptor, goMixedModeTrap), 0xAAFE); |
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WriteMacInt8 (desc + offsetof(RoutineDescriptor, version), 7); |
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WriteMacInt32(desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, procInfo), procInfo); |
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WriteMacInt8 (desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, ISA), 1); |
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WriteMacInt16(desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, routineFlags), 0 | 0 | 4); |
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WriteMacInt32(desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, procDescriptor), procedure); |
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} |
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}; |
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|
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|
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// Functions |
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extern void MacOSUtilReset(void); |
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extern void Enqueue(uint32 elem, uint32 list); // Enqueue QElem to list |
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extern int FindFreeDriveNumber(int num); // Find first free drive number, starting at "num" |
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extern void MountVolume(void *fh); // Mount volume with given file handle (see sys.h) |
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extern void FileDiskLayout(loff_t size, uint8 *data, loff_t &start_byte, loff_t &real_size); // Calculate disk image file layout given file size and first 256 data bytes |
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extern void *FindLibSymbol(char *lib, char *sym); // Find symbol in shared library |
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extern void InitCallUniversalProc(void); // Init CallUniversalProc() |
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extern long CallUniversalProc(void *upp, uint32 info); // CallUniversalProc() |
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extern uint32 TimeToMacTime(time_t t); // Convert time_t value to MacOS time |
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extern void *Mac_sysalloc(uint32 size); // Allocate block in MacOS system heap zone |
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extern void Mac_sysfree(void * p); // Release block occupied by the nonrelocatable block p |
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|
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// Construct four-character-code from string |
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#define FOURCC(a,b,c,d) (((uint32)(a) << 24) | ((uint32)(b) << 16) | ((uint32)(c) << 8) | (uint32)(d)) |
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|
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// Emulator identification codes (4 and 2 characters) |
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const uint32 EMULATOR_ID_4 = 0x62616168; // 'baah' |
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const uint16 EMULATOR_ID_2 = 0x6261; // 'ba' |
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|
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// Test if basic MacOS initializations (of the ROM) are done |
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static inline bool HasMacStarted(void) |
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{ |
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return ReadMacInt32(0xcfc) == FOURCC('W','L','S','C'); // Mac warm start flag |
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} |
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|
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#endif |
