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"

#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;

// Number of ticks between checks for disk insertion
const int driver_delay = 120;

// 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 '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
                        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 '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;
        }
}


/*
 *  Driver interrupt routine - check for volumes to be mounted
 */

void SonyInterrupt(void)
{
        static int tick_count = 0;
        if (!acc_run_called)
                return;

        tick_count++;
        if (tick_count > driver_delay) {
                tick_count = 0;
                mount_mountable_volumes();
        }
}
Revision:	1.6
Committed:	2000-04-10T18:52:30Z (24 years, 1 month ago) by cebix
Branch:	MAIN
CVS Tags:	snapshot-13072000
Changes since 1.5:	+1 -1 lines
Log Message:	- updated copyright info: 1999->2000
#	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			#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	cebix	1.2	// Number of ticks between checks for disk insertion
127			const int driver_delay = 120;
128
129			// Flag: Control(accRun) has been called, interrupt routine is now active
130			static bool acc_run_called = false;
131	cebix	1.1
132
133			/*
134			* Get pointer to drive info, NULL = invalid drive number
135			*/
136
137			static DriveInfo *get_drive_info(int num)
138			{
139			DriveInfo *info = first_drive_info;
140			while (info != NULL) {
141			if (info->num == num)
142			return info;
143			info = info->next;
144			}
145			return NULL;
146			}
147
148
149			/*
150			* Initialization
151			*/
152
153			void SonyInit(void)
154			{
155			first_drive_info = NULL;
156
157			// No drives specified in prefs? Then add defaults
158			if (PrefsFindString("floppy", 0) == NULL)
159			SysAddFloppyPrefs();
160
161			// Add drives specified in preferences
162			int32 index = 0;
163			const char *str;
164			while ((str = PrefsFindString("floppy", index++)) != NULL) {
165			bool read_only = false;
166			if (str[0] == '*') {
167			read_only = true;
168			str++;
169			}
170			void *fh = Sys_open(str, read_only);
171			if (fh) {
172			DriveInfo *info = new DriveInfo;
173			info->fh = fh;
174			info->read_only = SysIsReadOnly(fh);
175			DriveInfo p = (DriveInfo )&first_drive_info;
176			while (p->next != NULL)
177			p = p->next;
178			p->next = info;
179			}
180			}
181			}
182
183
184			/*
185			* Deinitialization
186			*/
187
188			void SonyExit(void)
189			{
190			DriveInfo info = first_drive_info, next;
191			while (info != NULL) {
192			Sys_close(info->fh);
193			next = info->next;
194			delete info;
195			info = next;
196			}
197			}
198
199
200			/*
201			* Disk was inserted, flag for mounting
202			*/
203
204			bool SonyMountVolume(void *fh)
205			{
206			DriveInfo *info;
207			for (info = first_drive_info; info != NULL && info->fh != fh; info = info->next) ;
208			if (info) {
209			if (SysIsDiskInserted(info->fh)) {
210			info->read_only = SysIsReadOnly(info->fh);
211			WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
212			WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
213			info->to_be_mounted = true;
214			}
215			return true;
216			} else
217			return false;
218			}
219
220
221			/*
222	cebix	1.2	* Mount volumes for which the to_be_mounted flag is set
223			* (called during interrupt time)
224			*/
225
226			static void mount_mountable_volumes(void)
227			{
228			DriveInfo *info = first_drive_info;
229			while (info != NULL) {
230
231			#if DISK_INSERT_CHECK
232			// Disk in drive?
233			if (!ReadMacInt8(info->status + dsDiskInPlace)) {
234
235			// No, check if disk was inserted
236			if (SysIsDiskInserted(info->fh))
237			SonyMountVolume(info->fh);
238			}
239			#endif
240
241			// Mount disk if flagged
242			if (info->to_be_mounted) {
243			D(bug(" mounting drive %d\n", info->num));
244			M68kRegisters r;
245			r.d[0] = info->num;
246			r.a[0] = 7; // diskEvent
247			Execute68kTrap(0xa02f, &r); // PostEvent()
248			info->to_be_mounted = false;
249			}
250
251			info = info->next;
252			}
253			}
254
255
256			/*
257	cebix	1.1	* Driver Open() routine
258			*/
259
260			int16 SonyOpen(uint32 pb, uint32 dce)
261			{
262			D(bug("SonyOpen\n"));
263
264			// Set up DCE
265			WriteMacInt32(dce + dCtlPosition, 0);
266			WriteMacInt16(dce + dCtlQHdr + qFlags, ReadMacInt16(dce + dCtlQHdr + qFlags) & 0xff00 \| 3); // Version number, must be >=3 or System 8 will replace us
267	cebix	1.2	acc_run_called = false;
268	cebix	1.1
269			// Install driver again with refnum -2 (HD20)
270			uint32 utab = ReadMacInt32(0x11c);
271			WriteMacInt32(utab + 4, ReadMacInt32(utab + 16));
272
273			// Set up fake SonyVars
274			WriteMacInt32(0x134, 0xdeadbeef);
275
276			// Clear DskErr
277			WriteMacInt16(0x142, 0);
278
279			// Install drives
280			for (DriveInfo *info = first_drive_info; info; info = info->next) {
281
282			info->num = FindFreeDriveNumber(1);
283			info->to_be_mounted = false;
284			info->tag_buffer = 0;
285
286			if (info->fh) {
287
288			// Allocate drive status record
289			M68kRegisters r;
290			r.d[0] = SIZEOF_DrvSts;
291			Execute68kTrap(0xa71e, &r); // NewPtrSysClear()
292			if (r.a[0] == 0)
293			continue;
294			info->status = r.a[0];
295			D(bug(" DrvSts at %08lx\n", info->status));
296
297			// Set up drive status
298			WriteMacInt16(info->status + dsQType, sony);
299			WriteMacInt8(info->status + dsInstalled, 1);
300			WriteMacInt8(info->status + dsSides, 0xff);
301			WriteMacInt8(info->status + dsTwoSideFmt, 0xff);
302			WriteMacInt8(info->status + dsNewIntf, 0xff);
303			WriteMacInt8(info->status + dsMFMDrive, 0xff);
304			WriteMacInt8(info->status + dsMFMDisk, 0xff);
305			WriteMacInt8(info->status + dsTwoMegFmt, 0xff);
306
307			// Disk in drive?
308			if (SysIsDiskInserted(info->fh)) {
309			WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
310			WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
311			info->to_be_mounted = true;
312			}
313
314			// Add drive to drive queue
315			D(bug(" adding drive %d\n", info->num));
316			r.d[0] = (info->num << 16) \| (SonyRefNum & 0xffff);
317			r.a[0] = info->status + dsQLink;
318			Execute68kTrap(0xa04e, &r); // AddDrive()
319			}
320			}
321			return noErr;
322			}
323
324
325			/*
326			* Driver Prime() routine
327			*/
328
329			int16 SonyPrime(uint32 pb, uint32 dce)
330			{
331			WriteMacInt32(pb + ioActCount, 0);
332
333			// Drive valid and disk inserted?
334			DriveInfo *info;
335			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
336			return nsDrvErr;
337			if (!ReadMacInt8(info->status + dsDiskInPlace))
338			return offLinErr;
339			WriteMacInt8(info->status + dsDiskInPlace, 2); // Disk accessed
340
341			// Get parameters
342			void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer));
343			size_t length = ReadMacInt32(pb + ioReqCount);
344			loff_t position = ReadMacInt32(dce + dCtlPosition);
345			if ((length & 0x1ff) \|\| (position & 0x1ff))
346			return paramErr;
347
348			size_t actual = 0;
349			if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) {
350
351			// Read
352			actual = Sys_read(info->fh, buffer, position, length);
353			if (actual != length)
354			return readErr;
355
356			// Clear TagBuf
357			WriteMacInt32(0x2fc, 0);
358			WriteMacInt32(0x300, 0);
359			WriteMacInt32(0x304, 0);
360
361			} else {
362
363			// Write
364			if (info->read_only)
365			return wPrErr;
366			actual = Sys_write(info->fh, buffer, position, length);
367			if (actual != length)
368			return writErr;
369			}
370
371			// Update ParamBlock and DCE
372			WriteMacInt32(pb + ioActCount, actual);
373			WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual);
374			return noErr;
375			}
376
377
378			/*
379			* Driver Control() routine
380			*/
381
382			int16 SonyControl(uint32 pb, uint32 dce)
383			{
384			uint16 code = ReadMacInt16(pb + csCode);
385			D(bug("SonyControl %d\n", code));
386
387			// General codes
388			switch (code) {
389			case 1: // KillIO
390			return -1;
391
392			case 9: // Track cache
393			return noErr;
394
395	cebix	1.2	case 65: // Periodic action (accRun, "insert" disks on startup)
396			mount_mountable_volumes();
397			PatchAfterStartup(); // Install patches after system startup
398			WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action
399			acc_run_called = true;
400	cebix	1.1	return noErr;
401			}
402
403			// Drive valid?
404			DriveInfo *info;
405			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
406			return nsDrvErr;
407
408			// Drive-specific codes
409			switch (code) {
410			case 5: // Verify disk
411			if (ReadMacInt8(info->status + dsDiskInPlace) > 0)
412			return noErr;
413			else
414			return verErr;
415
416			case 6: // Format disk
417			if (info->read_only)
418			return wPrErr;
419			else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
420			if (SysFormat(info->fh))
421			return noErr;
422			else
423			return writErr;
424			} else
425			return offLinErr;
426
427			case 7: // Eject
428			if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
429			SysEject(info->fh);
430			WriteMacInt8(info->status + dsDiskInPlace, 0);
431			}
432			return noErr;
433
434			case 8: // Set tag buffer
435			info->tag_buffer = ReadMacInt32(pb + csParam);
436			return noErr;
437
438			case 21: // Get drive icon
439			WriteMacInt32(pb + csParam, SonyDriveIconAddr);
440			return noErr;
441
442			case 22: // Get disk icon
443			WriteMacInt32(pb + csParam, SonyDiskIconAddr);
444			return noErr;
445
446			case 23: // Get drive info
447			if (info->num == 1)
448			WriteMacInt32(pb + csParam, 0x0004); // Internal drive
449			else
450			WriteMacInt32(pb + csParam, 0x0104); // External drive
451			return noErr;
452
453			case 'SC': { // Format and write to disk
454			if (!ReadMacInt8(info->status + dsDiskInPlace))
455			return offLinErr;
456			if (info->read_only)
457			return wPrErr;
458
459			void *data = Mac2HostAddr(ReadMacInt32(pb + csParam + 2));
460			size_t actual = Sys_write(info->fh, data, 0, 2880*512);
461			if (actual != 2880*512)
462			return writErr;
463			else
464			return noErr;
465			}
466
467			default:
468			printf("WARNING: Unknown SonyControl(%d)\n", code);
469			return controlErr;
470			}
471			}
472
473
474			/*
475			* Driver Status() routine
476			*/
477
478			int16 SonyStatus(uint32 pb, uint32 dce)
479			{
480			uint16 code = ReadMacInt16(pb + csCode);
481			D(bug("SonyStatus %d\n", code));
482
483			// Drive valid?
484			DriveInfo *info;
485			if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
486			return nsDrvErr;
487
488			switch (code) {
489			case 6: // Return format list
490			if (ReadMacInt16(pb + csParam) > 0) {
491			uint32 adr = ReadMacInt32(pb + csParam + 2);
492			WriteMacInt16(pb + csParam, 1); // 1 format
493			WriteMacInt32(adr, 2880); // 2880 sectors
494			WriteMacInt32(adr + 4, 0xd2120050); // 2 heads, 18 secs/track, 80 tracks
495			return noErr;
496			} else
497			return paramErr;
498
499			case 8: // Get drive status
500	cebix	1.5	Mac2Mac_memcpy(pb + csParam, info->status, 22);
501	cebix	1.1	return noErr;
502
503			case 10: // Get disk type
504			WriteMacInt32(pb + csParam, ReadMacInt32(info->status + dsMFMDrive) & 0xffffff00 \| 0xfe);
505			return noErr;
506
507			case 'DV': // Duplicator version supported
508			WriteMacInt16(pb + csParam, 0x0410);
509			return noErr;
510
511			case 'SC': // Get address header format byte
512			WriteMacInt8(pb + csParam, 0x22); // 512 bytes/sector
513			return noErr;
514
515			default:
516			printf("WARNING: Unknown SonyStatus(%d)\n", code);
517			return statusErr;
518	cebix	1.2	}
519			}
520
521
522			/*
523			* Driver interrupt routine - check for volumes to be mounted
524			*/
525
526			void SonyInterrupt(void)
527			{
528			static int tick_count = 0;
529			if (!acc_run_called)
530			return;
531
532			tick_count++;
533			if (tick_count > driver_delay) {
534			tick_count = 0;
535			mount_mountable_volumes();
536	cebix	1.1	}
537			}