BasiliskII/src/sony.cpp

/*
 *  sony.cpp - Replacement .Sony driver (floppy drives)
 *
 *  Basilisk II (C) 1997-1999 Christian Bauer
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*
 *  SEE ALSO
 *    Inside Macintosh: Devices, chapter 1 "Device Manager"
 *    Technote DV 05: "Drive Queue Elements"
 *    Technote DV 07: "Forcing Floppy Disk Size to be Either 400K or 800K"
 *    Technote DV 17: "Sony Driver: What Your Sony Drives For You"
 *    Technote DV 23: "Driver Education"
 *    Technote FL 24: "Don't Look at ioPosOffset for Devices"
 */

#include <string.h>

#include "sysdeps.h"
#include "cpu_emulation.h"
#include "main.h"
#include "macos_util.h"
#include "rom_patches.h"
#include "sys.h"
#include "prefs.h"
#include "sony.h"

#define DEBUG 0
#include "debug.h"

#ifdef AMIGA
#define DISK_INSERT_CHECK 1             // Check for inserted disks (problem: on most hardware, disks are not ejected and automatically remounted)
#else
#define DISK_INSERT_CHECK 0
#endif


// Floppy disk icon
const uint8 SonyDiskIcon[258] = {
        0x7f, 0xff, 0xff, 0xf8, 0x81, 0x00, 0x01, 0x04, 0x81, 0x00, 0x71, 0x02, 0x81, 0x00, 0x89, 0x01,
        0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01,
        0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xff, 0xfe, 0x01, 0x80, 0x00, 0x00, 0x01,
        0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01,
        0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x87, 0xff, 0xff, 0xe1, 0x88, 0x00, 0x00, 0x11,
        0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
        0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
        0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x7f, 0xff, 0xff, 0xfe,

        0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xfe,

        0, 0
};

// Floppy drive icon
const uint8 SonyDriveIcon[258] = {
        0x7f, 0xff, 0xff, 0xf8, 0x81, 0x00, 0x01, 0x04, 0x81, 0x00, 0x71, 0x02, 0x81, 0x00, 0x89, 0x01,
        0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01,
        0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xff, 0xfe, 0x01, 0x80, 0x00, 0x00, 0x01,
        0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01,
        0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x87, 0xff, 0xff, 0xe1, 0x88, 0x00, 0x00, 0x11,
        0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
        0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
        0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x7f, 0xff, 0xff, 0xfe,

        0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xfe,

        0, 0
};


// Struct for each drive
struct DriveInfo {
        DriveInfo()
        {
                next = NULL;
                num = 0;
                fh = NULL;
                read_only = false;
                status = 0;
        }

        DriveInfo *next;        // Pointer to next DriveInfo (must be first in struct!)
        int num;                        // Drive number
        void *fh;                       // Floppy driver file handle
        bool to_be_mounted;     // Flag: drive must be mounted in accRun
        bool read_only;         // Flag: force write protection
        uint32 tag_buffer;      // Mac address of tag buffer
        uint32 status;          // Mac address of drive status record
};

// Linked list of DriveInfos
static DriveInfo *first_drive_info;

// Icon addresses (Mac address space, set by PatchROM())
uint32 SonyDiskIconAddr;
uint32 SonyDriveIconAddr;

// Flag: accRun called for the first time, run PatchAfterStartup()
static bool periodic_first_time = false;


/*
 *  Get pointer to drive info, NULL = invalid drive number
 */

static DriveInfo *get_drive_info(int num)
{
        DriveInfo *info = first_drive_info;
        while (info != NULL) {
                if (info->num == num)
                        return info;
                info = info->next;
        }
        return NULL;
}


/*
 *  Initialization
 */

void SonyInit(void)
{
        first_drive_info = NULL;

        // No drives specified in prefs? Then add defaults
        if (PrefsFindString("floppy", 0) == NULL)
                SysAddFloppyPrefs();

        // Add drives specified in preferences
        int32 index = 0;
        const char *str;
        while ((str = PrefsFindString("floppy", index++)) != NULL) {
                bool read_only = false;
                if (str[0] == '*') {
                        read_only = true;
                        str++;
                }
                void *fh = Sys_open(str, read_only);
                if (fh) {
                        DriveInfo *info = new DriveInfo;
                        info->fh = fh;
                        info->read_only = SysIsReadOnly(fh);
                        DriveInfo *p = (DriveInfo *)&first_drive_info;
                        while (p->next != NULL)
                                p = p->next;
                        p->next = info;
                }
        }
}


/*
 *  Deinitialization
 */

void SonyExit(void)
{
        DriveInfo *info = first_drive_info, *next;
        while (info != NULL) {
                Sys_close(info->fh);
                next = info->next;
                delete info;
                info = next;
        }
}


/*
 *  Disk was inserted, flag for mounting
 */

bool SonyMountVolume(void *fh)
{
        DriveInfo *info;
        for (info = first_drive_info; info != NULL && info->fh != fh; info = info->next) ;
        if (info) {
                if (SysIsDiskInserted(info->fh)) {
                        info->read_only = SysIsReadOnly(info->fh);
                        WriteMacInt8(info->status + dsDiskInPlace, 1);  // Inserted removable disk
                        WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
                        info->to_be_mounted = true;
                }
                return true;
        } else
                return false;
}


/*
 *  Driver Open() routine
 */

int16 SonyOpen(uint32 pb, uint32 dce)
{
        D(bug("SonyOpen\n"));

        // Set up DCE
        WriteMacInt32(dce + dCtlPosition, 0);
        WriteMacInt16(dce + dCtlQHdr + qFlags, ReadMacInt16(dce + dCtlQHdr + qFlags) & 0xff00 | 3);     // Version number, must be >=3 or System 8 will replace us
        periodic_first_time = true;

        // Install driver again with refnum -2 (HD20)
        uint32 utab = ReadMacInt32(0x11c);
        WriteMacInt32(utab + 4, ReadMacInt32(utab + 16));

        // Set up fake SonyVars
        WriteMacInt32(0x134, 0xdeadbeef);

        // Clear DskErr
        WriteMacInt16(0x142, 0);

        // Install drives
        for (DriveInfo *info = first_drive_info; info; info = info->next) {

                info->num = FindFreeDriveNumber(1);
                info->to_be_mounted = false;
                info->tag_buffer = 0;

                if (info->fh) {

                        // Allocate drive status record
                        M68kRegisters r;
                        r.d[0] = SIZEOF_DrvSts;
                        Execute68kTrap(0xa71e, &r);             // NewPtrSysClear()
                        if (r.a[0] == 0)
                                continue;
                        info->status = r.a[0];
                        D(bug(" DrvSts at %08lx\n", info->status));

                        // Set up drive status
                        WriteMacInt16(info->status + dsQType, sony);
                        WriteMacInt8(info->status + dsInstalled, 1);
                        WriteMacInt8(info->status + dsSides, 0xff);
                        WriteMacInt8(info->status + dsTwoSideFmt, 0xff);
                        WriteMacInt8(info->status + dsNewIntf, 0xff);
                        WriteMacInt8(info->status + dsMFMDrive, 0xff);
                        WriteMacInt8(info->status + dsMFMDisk, 0xff);
                        WriteMacInt8(info->status + dsTwoMegFmt, 0xff);

                        // Disk in drive?
                        if (SysIsDiskInserted(info->fh)) {
                                WriteMacInt8(info->status + dsDiskInPlace, 1);  // Inserted removable disk
                                WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
                                info->to_be_mounted = true;
                        }

                        // Add drive to drive queue
                        D(bug(" adding drive %d\n", info->num));
                        r.d[0] = (info->num << 16) | (SonyRefNum & 0xffff);
                        r.a[0] = info->status + dsQLink;
                        Execute68kTrap(0xa04e, &r);     // AddDrive()
                }
        }
        return noErr;
}


/*
 *  Driver Prime() routine
 */

int16 SonyPrime(uint32 pb, uint32 dce)
{
        WriteMacInt32(pb + ioActCount, 0);

        // Drive valid and disk inserted?
        DriveInfo *info;
        if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
                return nsDrvErr;
        if (!ReadMacInt8(info->status + dsDiskInPlace))
                return offLinErr;
        WriteMacInt8(info->status + dsDiskInPlace, 2);  // Disk accessed

        // Get parameters
        void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer));
        size_t length = ReadMacInt32(pb + ioReqCount);
        loff_t position = ReadMacInt32(dce + dCtlPosition);
        if ((length & 0x1ff) || (position & 0x1ff))
                return paramErr;

        size_t actual = 0;
        if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) {

                // Read
                actual = Sys_read(info->fh, buffer, position, length);
                if (actual != length)
                        return readErr;

                // Clear TagBuf
                WriteMacInt32(0x2fc, 0);
                WriteMacInt32(0x300, 0);
                WriteMacInt32(0x304, 0);

        } else {

                // Write
                if (info->read_only)
                        return wPrErr;
                actual = Sys_write(info->fh, buffer, position, length);
                if (actual != length)
                        return writErr;
        }

        // Update ParamBlock and DCE
        WriteMacInt32(pb + ioActCount, actual);
        WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual);
        return noErr;
}


/*
 *  Driver Control() routine
 */

int16 SonyControl(uint32 pb, uint32 dce)
{
        uint16 code = ReadMacInt16(pb + csCode);
        D(bug("SonyControl %d\n", code));

        // General codes
        switch (code) {
                case 1:         // KillIO
                        return -1;

                case 9:         // Track cache
                        return noErr;

                case 65: {      // Periodic action ("insert" disks on startup and check for disk changes)
                        DriveInfo *info = first_drive_info;
                        while (info != NULL) {

                                // Disk in drive?
                                if (!ReadMacInt8(info->status + dsDiskInPlace)) {

#if DISK_INSERT_CHECK
                                        // No, check if disk was inserted
                                        if (SysIsDiskInserted(info->fh))
                                                SonyMountVolume(info->fh);
#endif
                                }

                                // Mount disk if flagged
                                if (info->to_be_mounted) {
                                        D(bug(" mounting drive %d\n", info->num));
                                        M68kRegisters r;
                                        r.d[0] = info->num;
                                        r.a[0] = 7;     // diskEvent
                                        Execute68kTrap(0xa02f, &r);             // PostEvent()
                                        info->to_be_mounted = false;
                                }

                                info = info->next;
                        }
                        if (periodic_first_time) {
                                periodic_first_time = false;
                                PatchAfterStartup();            // Install patches after system startup
                        }
                        return noErr;
                }
        }

        // Drive valid?
        DriveInfo *info;
        if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
                return nsDrvErr;

        // Drive-specific codes
        switch (code) {
                case 5:         // Verify disk
                        if (ReadMacInt8(info->status + dsDiskInPlace) > 0)
                                return noErr;
                        else
                                return verErr;

                case 6:         // Format disk
                        if (info->read_only)
                                return wPrErr;
                        else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
                                if (SysFormat(info->fh))
                                        return noErr;
                                else
                                        return writErr;
                        } else
                                return offLinErr;

                case 7:         // Eject
                        if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
                                SysEject(info->fh);
                                WriteMacInt8(info->status + dsDiskInPlace, 0);
                        }
                        return noErr;

                case 8:         // Set tag buffer
                        info->tag_buffer = ReadMacInt32(pb + csParam);
                        return noErr;

                case 21:                // Get drive icon
                        WriteMacInt32(pb + csParam, SonyDriveIconAddr);
                        return noErr;

                case 22:                // Get disk icon
                        WriteMacInt32(pb + csParam, SonyDiskIconAddr);
                        return noErr;

                case 23:                // Get drive info
                        if (info->num == 1)
                                WriteMacInt32(pb + csParam, 0x0004);    // Internal drive
                        else
                                WriteMacInt32(pb + csParam, 0x0104);    // External drive
                        return noErr;

                case 'SC': {    // Format and write to disk
                        if (!ReadMacInt8(info->status + dsDiskInPlace))
                                return offLinErr;
                        if (info->read_only)
                                return wPrErr;

                        void *data = Mac2HostAddr(ReadMacInt32(pb + csParam + 2));
                        size_t actual = Sys_write(info->fh, data, 0, 2880*512);
                        if (actual != 2880*512)
                                return writErr;
                        else
                                return noErr;
                }

                default:
                        printf("WARNING: Unknown SonyControl(%d)\n", code);
                        return controlErr;
        }
}


/*
 *  Driver Status() routine
 */

int16 SonyStatus(uint32 pb, uint32 dce)
{
        uint16 code = ReadMacInt16(pb + csCode);
        D(bug("SonyStatus %d\n", code));

        // Drive valid?
        DriveInfo *info;
        if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
                return nsDrvErr;

        switch (code) {
                case 6:         // Return format list
                        if (ReadMacInt16(pb + csParam) > 0) {
                                uint32 adr = ReadMacInt32(pb + csParam + 2);
                                WriteMacInt16(pb + csParam, 1);         // 1 format
                                WriteMacInt32(adr, 2880);                       // 2880 sectors
                                WriteMacInt32(adr + 4, 0xd2120050);     // 2 heads, 18 secs/track, 80 tracks
                                return noErr;
                        } else
                                return paramErr;

                case 8:         // Get drive status
                        memcpy(Mac2HostAddr(pb + csParam), Mac2HostAddr(info->status), 22);
                        return noErr;

                case 10:        // Get disk type
                        WriteMacInt32(pb + csParam, ReadMacInt32(info->status + dsMFMDrive) & 0xffffff00 | 0xfe);
                        return noErr;

                case 'DV':      // Duplicator version supported
                        WriteMacInt16(pb + csParam, 0x0410);
                        return noErr;

                case 'SC':      // Get address header format byte
                        WriteMacInt8(pb + csParam, 0x22);       // 512 bytes/sector
                        return noErr;

                default:
                        printf("WARNING: Unknown SonyStatus(%d)\n", code);
                        return statusErr;
        }
}
Revision:	1.1
Committed:	1999-10-03T14:16:25Z (25 years, 1 month ago) by cebix
Branch:	MAIN
Branch point for:	cebix
Log Message:	Initial revision
#	User	Rev	Content
1	cebix	1.1	/*
2			* sony.cpp - Replacement .Sony driver (floppy drives)
3			*
4			* Basilisk II (C) 1997-1999 Christian Bauer
5			*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			/*
22			* SEE ALSO
23			* Inside Macintosh: Devices, chapter 1 "Device Manager"
24			* Technote DV 05: "Drive Queue Elements"
25			* Technote DV 07: "Forcing Floppy Disk Size to be Either 400K or 800K"
26			* Technote DV 17: "Sony Driver: What Your Sony Drives For You"
27			* Technote DV 23: "Driver Education"
28			* Technote FL 24: "Don't Look at ioPosOffset for Devices"
29			*/
30
31			#include <string.h>
32
33			#include "sysdeps.h"
34			#include "cpu_emulation.h"
35			#include "main.h"
36			#include "macos_util.h"
37			#include "rom_patches.h"
38			#include "sys.h"
39			#include "prefs.h"
40			#include "sony.h"
41
42			#define DEBUG 0
43			#include "debug.h"
44
45			#ifdef AMIGA
46			#define DISK_INSERT_CHECK 1 // Check for inserted disks (problem: on most hardware, disks are not ejected and automatically remounted)
47			#else
48			#define DISK_INSERT_CHECK 0
49			#endif
50
51
52			// Floppy disk icon
53			const uint8 SonyDiskIcon[258] = {
54			0x7f, 0xff, 0xff, 0xf8, 0x81, 0x00, 0x01, 0x04, 0x81, 0x00, 0x71, 0x02, 0x81, 0x00, 0x89, 0x01,
55			0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01,
56			0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xff, 0xfe, 0x01, 0x80, 0x00, 0x00, 0x01,
57			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01,
58			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x87, 0xff, 0xff, 0xe1, 0x88, 0x00, 0x00, 0x11,
59			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
60			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
61			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x7f, 0xff, 0xff, 0xfe,
62
63			0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
64			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
65			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
66			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
67			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
68			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
69			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
70			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xfe,
71
72			0, 0
73			};
74
75			// Floppy drive icon
76			const uint8 SonyDriveIcon[258] = {
77			0x7f, 0xff, 0xff, 0xf8, 0x81, 0x00, 0x01, 0x04, 0x81, 0x00, 0x71, 0x02, 0x81, 0x00, 0x89, 0x01,
78			0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01,
79			0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xff, 0xfe, 0x01, 0x80, 0x00, 0x00, 0x01,
80			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01,
81			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x87, 0xff, 0xff, 0xe1, 0x88, 0x00, 0x00, 0x11,
82			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
83			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
84			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x7f, 0xff, 0xff, 0xfe,
85
86			0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
87			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
88			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
89			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
90			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
91			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
92			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
93			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xfe,
94
95			0, 0
96			};
97
98
99			// Struct for each drive
100			struct DriveInfo {
101			DriveInfo()
102			{
103			next = NULL;
104			num = 0;
105			fh = NULL;
106			read_only = false;
107			status = 0;
108			}
109
110			DriveInfo *next; // Pointer to next DriveInfo (must be first in struct!)
111			int num; // Drive number
112			void *fh; // Floppy driver file handle
113			bool to_be_mounted; // Flag: drive must be mounted in accRun
114			bool read_only; // Flag: force write protection
115			uint32 tag_buffer; // Mac address of tag buffer
116			uint32 status; // Mac address of drive status record
117			};
118
119			// Linked list of DriveInfos
120			static DriveInfo *first_drive_info;
121
122			// Icon addresses (Mac address space, set by PatchROM())
123			uint32 SonyDiskIconAddr;
124			uint32 SonyDriveIconAddr;
125
126			// Flag: accRun called for the first time, run PatchAfterStartup()
127			static bool periodic_first_time = false;
128
129
130			/*
131			* Get pointer to drive info, NULL = invalid drive number
132			*/
133
134			static DriveInfo *get_drive_info(int num)
135			{
136			DriveInfo *info = first_drive_info;
137			while (info != NULL) {
138			if (info->num == num)
139			return info;
140			info = info->next;
141			}
142			return NULL;
143			}
144
145
146			/*
147			* Initialization
148			*/
149
150			void SonyInit(void)
151			{
152			first_drive_info = NULL;
153
154			// No drives specified in prefs? Then add defaults
155			if (PrefsFindString("floppy", 0) == NULL)
156			SysAddFloppyPrefs();
157
158			// Add drives specified in preferences
159			int32 index = 0;
160			const char *str;
161			while ((str = PrefsFindString("floppy", index++)) != NULL) {
162			bool read_only = false;
163			if (str[0] == '*') {
164			read_only = true;
165			str++;
166			}
167			void *fh = Sys_open(str, read_only);
168			if (fh) {
169			DriveInfo *info = new DriveInfo;
170			info->fh = fh;
171			info->read_only = SysIsReadOnly(fh);
172			DriveInfo p = (DriveInfo )&first_drive_info;
173			while (p->next != NULL)
174			p = p->next;
175			p->next = info;
176			}
177			}
178			}
179
180
181			/*
182			* Deinitialization
183			*/
184
185			void SonyExit(void)
186			{
187			DriveInfo info = first_drive_info, next;
188			while (info != NULL) {
189			Sys_close(info->fh);
190			next = info->next;
191			delete info;
192			info = next;
193			}
194			}
195
196
197			/*
198			* Disk was inserted, flag for mounting
199			*/
200
201			bool SonyMountVolume(void *fh)
202			{
203			DriveInfo *info;
204			for (info = first_drive_info; info != NULL && info->fh != fh; info = info->next) ;
205			if (info) {
206			if (SysIsDiskInserted(info->fh)) {
207			info->read_only = SysIsReadOnly(info->fh);
208			WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
209			WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
210			info->to_be_mounted = true;
211			}
212			return true;
213			} else
214			return false;
215			}
216
217
218			/*
219			* Driver Open() routine
220			*/
221
222			int16 SonyOpen(uint32 pb, uint32 dce)
223			{
224			D(bug("SonyOpen\n"));
225
226			// Set up DCE
227			WriteMacInt32(dce + dCtlPosition, 0);
228			WriteMacInt16(dce + dCtlQHdr + qFlags, ReadMacInt16(dce + dCtlQHdr + qFlags) & 0xff00 \| 3); // Version number, must be >=3 or System 8 will replace us
229			periodic_first_time = true;
230
231			// Install driver again with refnum -2 (HD20)
232			uint32 utab = ReadMacInt32(0x11c);
233			WriteMacInt32(utab + 4, ReadMacInt32(utab + 16));
234
235			// Set up fake SonyVars
236			WriteMacInt32(0x134, 0xdeadbeef);
237
238			// Clear DskErr
239			WriteMacInt16(0x142, 0);
240
241			// Install drives
242			for (DriveInfo *info = first_drive_info; info; info = info->next) {
243
244			info->num = FindFreeDriveNumber(1);
245			info->to_be_mounted = false;
246			info->tag_buffer = 0;
247
248			if (info->fh) {
249
250			// Allocate drive status record
251			M68kRegisters r;
252			r.d[0] = SIZEOF_DrvSts;
253			Execute68kTrap(0xa71e, &r); // NewPtrSysClear()
254			if (r.a[0] == 0)
255			continue;
256			info->status = r.a[0];
257			D(bug(" DrvSts at %08lx\n", info->status));
258
259			// Set up drive status
260			WriteMacInt16(info->status + dsQType, sony);
261			WriteMacInt8(info->status + dsInstalled, 1);
262			WriteMacInt8(info->status + dsSides, 0xff);
263			WriteMacInt8(info->status + dsTwoSideFmt, 0xff);
264			WriteMacInt8(info->status + dsNewIntf, 0xff);
265			WriteMacInt8(info->status + dsMFMDrive, 0xff);
266			WriteMacInt8(info->status + dsMFMDisk, 0xff);
267			WriteMacInt8(info->status + dsTwoMegFmt, 0xff);
268
269			// Disk in drive?
270			if (SysIsDiskInserted(info->fh)) {
271			WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
272			WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
273			info->to_be_mounted = true;
274			}
275
276			// Add drive to drive queue
277			D(bug(" adding drive %d\n", info->num));
278			r.d[0] = (info->num << 16) \| (SonyRefNum & 0xffff);
279			r.a[0] = info->status + dsQLink;
280			Execute68kTrap(0xa04e, &r); // AddDrive()
281			}
282			}
283			return noErr;
284			}
285
286
287			/*
288			* Driver Prime() routine
289			*/
290
291			int16 SonyPrime(uint32 pb, uint32 dce)
292			{
293			WriteMacInt32(pb + ioActCount, 0);
294
295			// Drive valid and disk inserted?
296			DriveInfo *info;
297			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
298			return nsDrvErr;
299			if (!ReadMacInt8(info->status + dsDiskInPlace))
300			return offLinErr;
301			WriteMacInt8(info->status + dsDiskInPlace, 2); // Disk accessed
302
303			// Get parameters
304			void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer));
305			size_t length = ReadMacInt32(pb + ioReqCount);
306			loff_t position = ReadMacInt32(dce + dCtlPosition);
307			if ((length & 0x1ff) \|\| (position & 0x1ff))
308			return paramErr;
309
310			size_t actual = 0;
311			if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) {
312
313			// Read
314			actual = Sys_read(info->fh, buffer, position, length);
315			if (actual != length)
316			return readErr;
317
318			// Clear TagBuf
319			WriteMacInt32(0x2fc, 0);
320			WriteMacInt32(0x300, 0);
321			WriteMacInt32(0x304, 0);
322
323			} else {
324
325			// Write
326			if (info->read_only)
327			return wPrErr;
328			actual = Sys_write(info->fh, buffer, position, length);
329			if (actual != length)
330			return writErr;
331			}
332
333			// Update ParamBlock and DCE
334			WriteMacInt32(pb + ioActCount, actual);
335			WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual);
336			return noErr;
337			}
338
339
340			/*
341			* Driver Control() routine
342			*/
343
344			int16 SonyControl(uint32 pb, uint32 dce)
345			{
346			uint16 code = ReadMacInt16(pb + csCode);
347			D(bug("SonyControl %d\n", code));
348
349			// General codes
350			switch (code) {
351			case 1: // KillIO
352			return -1;
353
354			case 9: // Track cache
355			return noErr;
356
357			case 65: { // Periodic action ("insert" disks on startup and check for disk changes)
358			DriveInfo *info = first_drive_info;
359			while (info != NULL) {
360
361			// Disk in drive?
362			if (!ReadMacInt8(info->status + dsDiskInPlace)) {
363
364			#if DISK_INSERT_CHECK
365			// No, check if disk was inserted
366			if (SysIsDiskInserted(info->fh))
367			SonyMountVolume(info->fh);
368			#endif
369			}
370
371			// Mount disk if flagged
372			if (info->to_be_mounted) {
373			D(bug(" mounting drive %d\n", info->num));
374			M68kRegisters r;
375			r.d[0] = info->num;
376			r.a[0] = 7; // diskEvent
377			Execute68kTrap(0xa02f, &r); // PostEvent()
378			info->to_be_mounted = false;
379			}
380
381			info = info->next;
382			}
383			if (periodic_first_time) {
384			periodic_first_time = false;
385			PatchAfterStartup(); // Install patches after system startup
386			}
387			return noErr;
388			}
389			}
390
391			// Drive valid?
392			DriveInfo *info;
393			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
394			return nsDrvErr;
395
396			// Drive-specific codes
397			switch (code) {
398			case 5: // Verify disk
399			if (ReadMacInt8(info->status + dsDiskInPlace) > 0)
400			return noErr;
401			else
402			return verErr;
403
404			case 6: // Format disk
405			if (info->read_only)
406			return wPrErr;
407			else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
408			if (SysFormat(info->fh))
409			return noErr;
410			else
411			return writErr;
412			} else
413			return offLinErr;
414
415			case 7: // Eject
416			if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
417			SysEject(info->fh);
418			WriteMacInt8(info->status + dsDiskInPlace, 0);
419			}
420			return noErr;
421
422			case 8: // Set tag buffer
423			info->tag_buffer = ReadMacInt32(pb + csParam);
424			return noErr;
425
426			case 21: // Get drive icon
427			WriteMacInt32(pb + csParam, SonyDriveIconAddr);
428			return noErr;
429
430			case 22: // Get disk icon
431			WriteMacInt32(pb + csParam, SonyDiskIconAddr);
432			return noErr;
433
434			case 23: // Get drive info
435			if (info->num == 1)
436			WriteMacInt32(pb + csParam, 0x0004); // Internal drive
437			else
438			WriteMacInt32(pb + csParam, 0x0104); // External drive
439			return noErr;
440
441			case 'SC': { // Format and write to disk
442			if (!ReadMacInt8(info->status + dsDiskInPlace))
443			return offLinErr;
444			if (info->read_only)
445			return wPrErr;
446
447			void *data = Mac2HostAddr(ReadMacInt32(pb + csParam + 2));
448			size_t actual = Sys_write(info->fh, data, 0, 2880*512);
449			if (actual != 2880*512)
450			return writErr;
451			else
452			return noErr;
453			}
454
455			default:
456			printf("WARNING: Unknown SonyControl(%d)\n", code);
457			return controlErr;
458			}
459			}
460
461
462			/*
463			* Driver Status() routine
464			*/
465
466			int16 SonyStatus(uint32 pb, uint32 dce)
467			{
468			uint16 code = ReadMacInt16(pb + csCode);
469			D(bug("SonyStatus %d\n", code));
470
471			// Drive valid?
472			DriveInfo *info;
473			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
474			return nsDrvErr;
475
476			switch (code) {
477			case 6: // Return format list
478			if (ReadMacInt16(pb + csParam) > 0) {
479			uint32 adr = ReadMacInt32(pb + csParam + 2);
480			WriteMacInt16(pb + csParam, 1); // 1 format
481			WriteMacInt32(adr, 2880); // 2880 sectors
482			WriteMacInt32(adr + 4, 0xd2120050); // 2 heads, 18 secs/track, 80 tracks
483			return noErr;
484			} else
485			return paramErr;
486
487			case 8: // Get drive status
488			memcpy(Mac2HostAddr(pb + csParam), Mac2HostAddr(info->status), 22);
489			return noErr;
490
491			case 10: // Get disk type
492			WriteMacInt32(pb + csParam, ReadMacInt32(info->status + dsMFMDrive) & 0xffffff00 \| 0xfe);
493			return noErr;
494
495			case 'DV': // Duplicator version supported
496			WriteMacInt16(pb + csParam, 0x0410);
497			return noErr;
498
499			case 'SC': // Get address header format byte
500			WriteMacInt8(pb + csParam, 0x22); // 512 bytes/sector
501			return noErr;
502
503			default:
504			printf("WARNING: Unknown SonyStatus(%d)\n", code);
505			return statusErr;
506			}
507			}