BasiliskII/src/sony.cpp

/*
 *  sony.cpp - Replacement .Sony driver (floppy drives)
 *
 *  Basilisk II (C) 1997-2000 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"


// Check for inserted disks by polling?
#ifdef AMIGA
#define DISK_INSERT_CHECK 1
#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: Control(accRun) has been called, interrupt routine is now active
static bool acc_run_called = 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;
}


/*
 *  Mount volumes for which the to_be_mounted flag is set
 *  (called during interrupt time)
 */

static void mount_mountable_volumes(void)
{
        DriveInfo *info = first_drive_info;
        while (info != NULL) {

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

                        // 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;
        }
}


/*
 *  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
        acc_run_called = false;

        // 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 (accRun, "insert" disks on startup)
                        mount_mountable_volumes();
                        PatchAfterStartup();            // Install patches after system startup
                        WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000);        // Disable periodic action
                        acc_run_called = true;
                        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 0x5343: {  // Format and write to disk ('SC'), used by DiskCopy
                        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
                        Mac2Mac_memcpy(pb + csParam, info->status, 22);
                        return noErr;

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

                case 0x4456: // Duplicator version supported ('DV')
                        WriteMacInt16(pb + csParam, 0x0410);
                        return noErr;

                case 0x5343: // Get address header format byte ('SC')
                        WriteMacInt8(pb + csParam, 0x22);       // 512 bytes/sector
                        return noErr;

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


/*
 *  Driver interrupt routine (1Hz) - check for volumes to be mounted
 */

void SonyInterrupt(void)
{
        if (!acc_run_called)
                return;

        mount_mountable_volumes();
}
Revision:	1.8
Committed:	2000-07-22T16:07:18Z (23 years, 9 months ago) by cebix
Branch:	MAIN
Changes since 1.7:	+3 -3 lines
Log Message:	- new FOURCC() macro in macos_util.h
#	User	Rev	Content
1	cebix	1.1	/*
2			* sony.cpp - Replacement .Sony driver (floppy drives)
3			*
4	cebix	1.6	* Basilisk II (C) 1997-2000 Christian Bauer
5	cebix	1.1	*
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	cebix	1.4	#define DEBUG 0
43	cebix	1.1	#include "debug.h"
44
45	cebix	1.7
46			// Check for inserted disks by polling?
47	cebix	1.1	#ifdef AMIGA
48	cebix	1.7	#define DISK_INSERT_CHECK 1
49	cebix	1.1	#else
50			#define DISK_INSERT_CHECK 0
51			#endif
52
53
54			// Floppy disk icon
55			const uint8 SonyDiskIcon[258] = {
56			0x7f, 0xff, 0xff, 0xf8, 0x81, 0x00, 0x01, 0x04, 0x81, 0x00, 0x71, 0x02, 0x81, 0x00, 0x89, 0x01,
57			0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01,
58			0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xff, 0xfe, 0x01, 0x80, 0x00, 0x00, 0x01,
59			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01,
60			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x87, 0xff, 0xff, 0xe1, 0x88, 0x00, 0x00, 0x11,
61			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
62			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
63			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x7f, 0xff, 0xff, 0xfe,
64
65			0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfe, 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, 0xff, 0xff, 0xff, 0xff,
71			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
72			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xfe,
73
74			0, 0
75			};
76
77			// Floppy drive icon
78			const uint8 SonyDriveIcon[258] = {
79			0x7f, 0xff, 0xff, 0xf8, 0x81, 0x00, 0x01, 0x04, 0x81, 0x00, 0x71, 0x02, 0x81, 0x00, 0x89, 0x01,
80			0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01, 0x81, 0x00, 0x89, 0x01,
81			0x81, 0x00, 0x71, 0x01, 0x81, 0x00, 0x01, 0x01, 0x80, 0xff, 0xfe, 0x01, 0x80, 0x00, 0x00, 0x01,
82			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01,
83			0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x87, 0xff, 0xff, 0xe1, 0x88, 0x00, 0x00, 0x11,
84			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
85			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11,
86			0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x88, 0x00, 0x00, 0x11, 0x7f, 0xff, 0xff, 0xfe,
87
88			0x7f, 0xff, 0xff, 0xf8, 0xff, 0xff, 0xff, 0xfc, 0xff, 0xff, 0xff, 0xfe, 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, 0xff, 0xff, 0xff, 0xff,
94			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
95			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xfe,
96
97			0, 0
98			};
99
100
101			// Struct for each drive
102			struct DriveInfo {
103			DriveInfo()
104			{
105			next = NULL;
106			num = 0;
107			fh = NULL;
108			read_only = false;
109			status = 0;
110			}
111
112			DriveInfo *next; // Pointer to next DriveInfo (must be first in struct!)
113			int num; // Drive number
114			void *fh; // Floppy driver file handle
115			bool to_be_mounted; // Flag: drive must be mounted in accRun
116			bool read_only; // Flag: force write protection
117			uint32 tag_buffer; // Mac address of tag buffer
118			uint32 status; // Mac address of drive status record
119			};
120
121			// Linked list of DriveInfos
122			static DriveInfo *first_drive_info;
123
124			// Icon addresses (Mac address space, set by PatchROM())
125			uint32 SonyDiskIconAddr;
126			uint32 SonyDriveIconAddr;
127
128	cebix	1.2	// Flag: Control(accRun) has been called, interrupt routine is now active
129			static bool acc_run_called = false;
130	cebix	1.1
131
132			/*
133			* Get pointer to drive info, NULL = invalid drive number
134			*/
135
136			static DriveInfo *get_drive_info(int num)
137			{
138			DriveInfo *info = first_drive_info;
139			while (info != NULL) {
140			if (info->num == num)
141			return info;
142			info = info->next;
143			}
144			return NULL;
145			}
146
147
148			/*
149			* Initialization
150			*/
151
152			void SonyInit(void)
153			{
154			first_drive_info = NULL;
155
156			// No drives specified in prefs? Then add defaults
157			if (PrefsFindString("floppy", 0) == NULL)
158			SysAddFloppyPrefs();
159
160			// Add drives specified in preferences
161			int32 index = 0;
162			const char *str;
163			while ((str = PrefsFindString("floppy", index++)) != NULL) {
164			bool read_only = false;
165			if (str[0] == '*') {
166			read_only = true;
167			str++;
168			}
169			void *fh = Sys_open(str, read_only);
170			if (fh) {
171			DriveInfo *info = new DriveInfo;
172			info->fh = fh;
173			info->read_only = SysIsReadOnly(fh);
174			DriveInfo p = (DriveInfo )&first_drive_info;
175			while (p->next != NULL)
176			p = p->next;
177			p->next = info;
178			}
179			}
180			}
181
182
183			/*
184			* Deinitialization
185			*/
186
187			void SonyExit(void)
188			{
189			DriveInfo info = first_drive_info, next;
190			while (info != NULL) {
191			Sys_close(info->fh);
192			next = info->next;
193			delete info;
194			info = next;
195			}
196			}
197
198
199			/*
200			* Disk was inserted, flag for mounting
201			*/
202
203			bool SonyMountVolume(void *fh)
204			{
205			DriveInfo *info;
206			for (info = first_drive_info; info != NULL && info->fh != fh; info = info->next) ;
207			if (info) {
208			if (SysIsDiskInserted(info->fh)) {
209			info->read_only = SysIsReadOnly(info->fh);
210			WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
211			WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
212			info->to_be_mounted = true;
213			}
214			return true;
215			} else
216			return false;
217			}
218
219
220			/*
221	cebix	1.2	* Mount volumes for which the to_be_mounted flag is set
222			* (called during interrupt time)
223			*/
224
225			static void mount_mountable_volumes(void)
226			{
227			DriveInfo *info = first_drive_info;
228			while (info != NULL) {
229
230			#if DISK_INSERT_CHECK
231			// Disk in drive?
232			if (!ReadMacInt8(info->status + dsDiskInPlace)) {
233
234			// No, check if disk was inserted
235			if (SysIsDiskInserted(info->fh))
236			SonyMountVolume(info->fh);
237			}
238			#endif
239
240			// Mount disk if flagged
241			if (info->to_be_mounted) {
242			D(bug(" mounting drive %d\n", info->num));
243			M68kRegisters r;
244			r.d[0] = info->num;
245			r.a[0] = 7; // diskEvent
246			Execute68kTrap(0xa02f, &r); // PostEvent()
247			info->to_be_mounted = false;
248			}
249
250			info = info->next;
251			}
252			}
253
254
255			/*
256	cebix	1.1	* Driver Open() routine
257			*/
258
259			int16 SonyOpen(uint32 pb, uint32 dce)
260			{
261			D(bug("SonyOpen\n"));
262
263			// Set up DCE
264			WriteMacInt32(dce + dCtlPosition, 0);
265			WriteMacInt16(dce + dCtlQHdr + qFlags, ReadMacInt16(dce + dCtlQHdr + qFlags) & 0xff00 \| 3); // Version number, must be >=3 or System 8 will replace us
266	cebix	1.2	acc_run_called = false;
267	cebix	1.1
268			// Install driver again with refnum -2 (HD20)
269			uint32 utab = ReadMacInt32(0x11c);
270			WriteMacInt32(utab + 4, ReadMacInt32(utab + 16));
271
272			// Set up fake SonyVars
273			WriteMacInt32(0x134, 0xdeadbeef);
274
275			// Clear DskErr
276			WriteMacInt16(0x142, 0);
277
278			// Install drives
279			for (DriveInfo *info = first_drive_info; info; info = info->next) {
280
281			info->num = FindFreeDriveNumber(1);
282			info->to_be_mounted = false;
283			info->tag_buffer = 0;
284
285			if (info->fh) {
286
287			// Allocate drive status record
288			M68kRegisters r;
289			r.d[0] = SIZEOF_DrvSts;
290			Execute68kTrap(0xa71e, &r); // NewPtrSysClear()
291			if (r.a[0] == 0)
292			continue;
293			info->status = r.a[0];
294			D(bug(" DrvSts at %08lx\n", info->status));
295
296			// Set up drive status
297			WriteMacInt16(info->status + dsQType, sony);
298			WriteMacInt8(info->status + dsInstalled, 1);
299			WriteMacInt8(info->status + dsSides, 0xff);
300			WriteMacInt8(info->status + dsTwoSideFmt, 0xff);
301			WriteMacInt8(info->status + dsNewIntf, 0xff);
302			WriteMacInt8(info->status + dsMFMDrive, 0xff);
303			WriteMacInt8(info->status + dsMFMDisk, 0xff);
304			WriteMacInt8(info->status + dsTwoMegFmt, 0xff);
305
306			// Disk in drive?
307			if (SysIsDiskInserted(info->fh)) {
308			WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
309			WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
310			info->to_be_mounted = true;
311			}
312
313			// Add drive to drive queue
314			D(bug(" adding drive %d\n", info->num));
315			r.d[0] = (info->num << 16) \| (SonyRefNum & 0xffff);
316			r.a[0] = info->status + dsQLink;
317			Execute68kTrap(0xa04e, &r); // AddDrive()
318			}
319			}
320			return noErr;
321			}
322
323
324			/*
325			* Driver Prime() routine
326			*/
327
328			int16 SonyPrime(uint32 pb, uint32 dce)
329			{
330			WriteMacInt32(pb + ioActCount, 0);
331
332			// Drive valid and disk inserted?
333			DriveInfo *info;
334			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
335			return nsDrvErr;
336			if (!ReadMacInt8(info->status + dsDiskInPlace))
337			return offLinErr;
338			WriteMacInt8(info->status + dsDiskInPlace, 2); // Disk accessed
339
340			// Get parameters
341			void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer));
342			size_t length = ReadMacInt32(pb + ioReqCount);
343			loff_t position = ReadMacInt32(dce + dCtlPosition);
344			if ((length & 0x1ff) \|\| (position & 0x1ff))
345			return paramErr;
346
347			size_t actual = 0;
348			if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) {
349
350			// Read
351			actual = Sys_read(info->fh, buffer, position, length);
352			if (actual != length)
353			return readErr;
354
355			// Clear TagBuf
356			WriteMacInt32(0x2fc, 0);
357			WriteMacInt32(0x300, 0);
358			WriteMacInt32(0x304, 0);
359
360			} else {
361
362			// Write
363			if (info->read_only)
364			return wPrErr;
365			actual = Sys_write(info->fh, buffer, position, length);
366			if (actual != length)
367			return writErr;
368			}
369
370			// Update ParamBlock and DCE
371			WriteMacInt32(pb + ioActCount, actual);
372			WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual);
373			return noErr;
374			}
375
376
377			/*
378			* Driver Control() routine
379			*/
380
381			int16 SonyControl(uint32 pb, uint32 dce)
382			{
383			uint16 code = ReadMacInt16(pb + csCode);
384			D(bug("SonyControl %d\n", code));
385
386			// General codes
387			switch (code) {
388			case 1: // KillIO
389			return -1;
390
391			case 9: // Track cache
392			return noErr;
393
394	cebix	1.2	case 65: // Periodic action (accRun, "insert" disks on startup)
395			mount_mountable_volumes();
396			PatchAfterStartup(); // Install patches after system startup
397			WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action
398			acc_run_called = true;
399	cebix	1.1	return noErr;
400			}
401
402			// Drive valid?
403			DriveInfo *info;
404			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
405			return nsDrvErr;
406
407			// Drive-specific codes
408			switch (code) {
409			case 5: // Verify disk
410			if (ReadMacInt8(info->status + dsDiskInPlace) > 0)
411			return noErr;
412			else
413			return verErr;
414
415			case 6: // Format disk
416			if (info->read_only)
417			return wPrErr;
418			else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
419			if (SysFormat(info->fh))
420			return noErr;
421			else
422			return writErr;
423			} else
424			return offLinErr;
425
426			case 7: // Eject
427			if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
428			SysEject(info->fh);
429			WriteMacInt8(info->status + dsDiskInPlace, 0);
430			}
431			return noErr;
432
433			case 8: // Set tag buffer
434			info->tag_buffer = ReadMacInt32(pb + csParam);
435			return noErr;
436
437			case 21: // Get drive icon
438			WriteMacInt32(pb + csParam, SonyDriveIconAddr);
439			return noErr;
440
441			case 22: // Get disk icon
442			WriteMacInt32(pb + csParam, SonyDiskIconAddr);
443			return noErr;
444
445			case 23: // Get drive info
446			if (info->num == 1)
447			WriteMacInt32(pb + csParam, 0x0004); // Internal drive
448			else
449			WriteMacInt32(pb + csParam, 0x0104); // External drive
450			return noErr;
451
452	cebix	1.8	case 0x5343: { // Format and write to disk ('SC'), used by DiskCopy
453	cebix	1.1	if (!ReadMacInt8(info->status + dsDiskInPlace))
454			return offLinErr;
455			if (info->read_only)
456			return wPrErr;
457
458			void *data = Mac2HostAddr(ReadMacInt32(pb + csParam + 2));
459			size_t actual = Sys_write(info->fh, data, 0, 2880*512);
460			if (actual != 2880*512)
461			return writErr;
462			else
463			return noErr;
464			}
465
466			default:
467			printf("WARNING: Unknown SonyControl(%d)\n", code);
468			return controlErr;
469			}
470			}
471
472
473			/*
474			* Driver Status() routine
475			*/
476
477			int16 SonyStatus(uint32 pb, uint32 dce)
478			{
479			uint16 code = ReadMacInt16(pb + csCode);
480			D(bug("SonyStatus %d\n", code));
481
482			// Drive valid?
483			DriveInfo *info;
484			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
485			return nsDrvErr;
486
487			switch (code) {
488			case 6: // Return format list
489			if (ReadMacInt16(pb + csParam) > 0) {
490			uint32 adr = ReadMacInt32(pb + csParam + 2);
491			WriteMacInt16(pb + csParam, 1); // 1 format
492			WriteMacInt32(adr, 2880); // 2880 sectors
493			WriteMacInt32(adr + 4, 0xd2120050); // 2 heads, 18 secs/track, 80 tracks
494			return noErr;
495			} else
496			return paramErr;
497
498			case 8: // Get drive status
499	cebix	1.5	Mac2Mac_memcpy(pb + csParam, info->status, 22);
500	cebix	1.1	return noErr;
501
502			case 10: // Get disk type
503			WriteMacInt32(pb + csParam, ReadMacInt32(info->status + dsMFMDrive) & 0xffffff00 \| 0xfe);
504			return noErr;
505
506	cebix	1.8	case 0x4456: // Duplicator version supported ('DV')
507	cebix	1.1	WriteMacInt16(pb + csParam, 0x0410);
508			return noErr;
509
510	cebix	1.8	case 0x5343: // Get address header format byte ('SC')
511	cebix	1.1	WriteMacInt8(pb + csParam, 0x22); // 512 bytes/sector
512			return noErr;
513
514			default:
515			printf("WARNING: Unknown SonyStatus(%d)\n", code);
516			return statusErr;
517	cebix	1.2	}
518			}
519
520
521			/*
522	cebix	1.7	* Driver interrupt routine (1Hz) - check for volumes to be mounted
523	cebix	1.2	*/
524
525			void SonyInterrupt(void)
526			{
527			if (!acc_run_called)
528			return;
529
530	cebix	1.7	mount_mountable_volumes();
531	cebix	1.1	}