BasiliskII/src/sony.cpp

/*
 *  sony.cpp - Replacement .Sony driver (floppy drives)
 *
 *  Basilisk II (C) 1997-2001 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;
        }
}


/*
 *  Set error code in DskErr
 */

static int16 set_dsk_err(int16 err)
{
        WriteMacInt16(0x142, err);
        return err;
}


/*
 *  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
        set_dsk_err(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 set_dsk_err(nsDrvErr);
        if (!ReadMacInt8(info->status + dsDiskInPlace))
                return set_dsk_err(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 set_dsk_err(paramErr);

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

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

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

        } else {

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

        // Update ParamBlock and DCE
        WriteMacInt32(pb + ioActCount, actual);
        WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual);
        return set_dsk_err(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 set_dsk_err(-1);

                case 9:         // Track cache
                        return set_dsk_err(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 set_dsk_err(nsDrvErr);

        // Drive-specific codes
        int16 err = noErr;
        switch (code) {
                case 5:         // Verify disk
                        if (ReadMacInt8(info->status + dsDiskInPlace) <= 0)
                                err = verErr;
                        break;

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

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

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

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

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

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

                case 0x5343:    // Format and write to disk ('SC'), used by DiskCopy
                        if (!ReadMacInt8(info->status + dsDiskInPlace))
                                err = offLinErr;
                        else if (info->read_only)
                                err = wPrErr;
                        else {
                                void *data = Mac2HostAddr(ReadMacInt32(pb + csParam + 2));
                                size_t actual = Sys_write(info->fh, data, 0, 2880*512);
                                if (actual != 2880*512)
                                        err = writErr;
                        }
                        break;

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

        return set_dsk_err(err);
}


/*
 *  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 set_dsk_err(nsDrvErr);

        int16 err = noErr;
        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
                        } else
                                err = paramErr;
                        break;

                case 8:         // Get drive status
                        Mac2Mac_memcpy(pb + csParam, info->status, 22);
                        break;

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

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

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

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

        return set_dsk_err(err);
}


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

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

        mount_mountable_volumes();
}
Revision:	1.10
Committed:	2001-02-10T20:03:55Z (23 years, 9 months ago) by cebix
Branch:	MAIN
CVS Tags:	snapshot-17022001, snapshot-29052001, release-0_9-1
Changes since 1.9:	+63 -47 lines
Log Message:	floppy driver updates DskErr
#	Content
1	/*
2	* sony.cpp - Replacement .Sony driver (floppy drives)
3	*
4	* Basilisk II (C) 1997-2001 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
46	// Check for inserted disks by polling?
47	#ifdef AMIGA
48	#define DISK_INSERT_CHECK 1
49	#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	// Flag: Control(accRun) has been called, interrupt routine is now active
129	static bool acc_run_called = false;
130
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	* 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	* Set error code in DskErr
257	*/
258
259	static int16 set_dsk_err(int16 err)
260	{
261	WriteMacInt16(0x142, err);
262	return err;
263	}
264
265
266	/*
267	* Driver Open() routine
268	*/
269
270	int16 SonyOpen(uint32 pb, uint32 dce)
271	{
272	D(bug("SonyOpen\n"));
273
274	// Set up DCE
275	WriteMacInt32(dce + dCtlPosition, 0);
276	WriteMacInt16(dce + dCtlQHdr + qFlags, ReadMacInt16(dce + dCtlQHdr + qFlags) & 0xff00 \| 3); // Version number, must be >=3 or System 8 will replace us
277	acc_run_called = false;
278
279	// Install driver again with refnum -2 (HD20)
280	uint32 utab = ReadMacInt32(0x11c);
281	WriteMacInt32(utab + 4, ReadMacInt32(utab + 16));
282
283	// Set up fake SonyVars
284	WriteMacInt32(0x134, 0xdeadbeef);
285
286	// Clear DskErr
287	set_dsk_err(0);
288
289	// Install drives
290	for (DriveInfo *info = first_drive_info; info; info = info->next) {
291
292	info->num = FindFreeDriveNumber(1);
293	info->to_be_mounted = false;
294	info->tag_buffer = 0;
295
296	if (info->fh) {
297
298	// Allocate drive status record
299	M68kRegisters r;
300	r.d[0] = SIZEOF_DrvSts;
301	Execute68kTrap(0xa71e, &r); // NewPtrSysClear()
302	if (r.a[0] == 0)
303	continue;
304	info->status = r.a[0];
305	D(bug(" DrvSts at %08lx\n", info->status));
306
307	// Set up drive status
308	WriteMacInt16(info->status + dsQType, sony);
309	WriteMacInt8(info->status + dsInstalled, 1);
310	WriteMacInt8(info->status + dsSides, 0xff);
311	WriteMacInt8(info->status + dsTwoSideFmt, 0xff);
312	WriteMacInt8(info->status + dsNewIntf, 0xff);
313	WriteMacInt8(info->status + dsMFMDrive, 0xff);
314	WriteMacInt8(info->status + dsMFMDisk, 0xff);
315	WriteMacInt8(info->status + dsTwoMegFmt, 0xff);
316
317	// Disk in drive?
318	if (SysIsDiskInserted(info->fh)) {
319	WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk
320	WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0);
321	info->to_be_mounted = true;
322	}
323
324	// Add drive to drive queue
325	D(bug(" adding drive %d\n", info->num));
326	r.d[0] = (info->num << 16) \| (SonyRefNum & 0xffff);
327	r.a[0] = info->status + dsQLink;
328	Execute68kTrap(0xa04e, &r); // AddDrive()
329	}
330	}
331	return noErr;
332	}
333
334
335	/*
336	* Driver Prime() routine
337	*/
338
339	int16 SonyPrime(uint32 pb, uint32 dce)
340	{
341	WriteMacInt32(pb + ioActCount, 0);
342
343	// Drive valid and disk inserted?
344	DriveInfo *info;
345	if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
346	return set_dsk_err(nsDrvErr);
347	if (!ReadMacInt8(info->status + dsDiskInPlace))
348	return set_dsk_err(offLinErr);
349	WriteMacInt8(info->status + dsDiskInPlace, 2); // Disk accessed
350
351	// Get parameters
352	void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer));
353	size_t length = ReadMacInt32(pb + ioReqCount);
354	loff_t position = ReadMacInt32(dce + dCtlPosition);
355	if ((length & 0x1ff) \|\| (position & 0x1ff))
356	return set_dsk_err(paramErr);
357
358	size_t actual = 0;
359	if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) {
360
361	// Read
362	actual = Sys_read(info->fh, buffer, position, length);
363	if (actual != length)
364	return set_dsk_err(readErr);
365
366	// Clear TagBuf
367	WriteMacInt32(0x2fc, 0);
368	WriteMacInt32(0x300, 0);
369	WriteMacInt32(0x304, 0);
370
371	} else {
372
373	// Write
374	if (info->read_only)
375	return set_dsk_err(wPrErr);
376	actual = Sys_write(info->fh, buffer, position, length);
377	if (actual != length)
378	return set_dsk_err(writErr);
379	}
380
381	// Update ParamBlock and DCE
382	WriteMacInt32(pb + ioActCount, actual);
383	WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual);
384	return set_dsk_err(noErr);
385	}
386
387
388	/*
389	* Driver Control() routine
390	*/
391
392	int16 SonyControl(uint32 pb, uint32 dce)
393	{
394	uint16 code = ReadMacInt16(pb + csCode);
395	D(bug("SonyControl %d\n", code));
396
397	// General codes
398	switch (code) {
399	case 1: // KillIO
400	return set_dsk_err(-1);
401
402	case 9: // Track cache
403	return set_dsk_err(noErr);
404
405	case 65: // Periodic action (accRun, "insert" disks on startup)
406	mount_mountable_volumes();
407	PatchAfterStartup(); // Install patches after system startup
408	WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action
409	acc_run_called = true;
410	return noErr;
411	}
412
413	// Drive valid?
414	DriveInfo *info;
415	if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
416	return set_dsk_err(nsDrvErr);
417
418	// Drive-specific codes
419	int16 err = noErr;
420	switch (code) {
421	case 5: // Verify disk
422	if (ReadMacInt8(info->status + dsDiskInPlace) <= 0)
423	err = verErr;
424	break;
425
426	case 6: // Format disk
427	if (info->read_only)
428	err = wPrErr;
429	else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
430	if (!SysFormat(info->fh))
431	err = writErr;
432	} else
433	err = offLinErr;
434	break;
435
436	case 7: // Eject
437	if (ReadMacInt8(info->status + dsDiskInPlace) > 0) {
438	SysEject(info->fh);
439	WriteMacInt8(info->status + dsDiskInPlace, 0);
440	}
441	break;
442
443	case 8: // Set tag buffer
444	info->tag_buffer = ReadMacInt32(pb + csParam);
445	break;
446
447	case 21: // Get drive icon
448	WriteMacInt32(pb + csParam, SonyDriveIconAddr);
449	break;
450
451	case 22: // Get disk icon
452	WriteMacInt32(pb + csParam, SonyDiskIconAddr);
453	break;
454
455	case 23: // Get drive info
456	if (info->num == 1)
457	WriteMacInt32(pb + csParam, 0x0004); // Internal drive
458	else
459	WriteMacInt32(pb + csParam, 0x0104); // External drive
460	break;
461
462	case 0x5343: // Format and write to disk ('SC'), used by DiskCopy
463	if (!ReadMacInt8(info->status + dsDiskInPlace))
464	err = offLinErr;
465	else if (info->read_only)
466	err = wPrErr;
467	else {
468	void *data = Mac2HostAddr(ReadMacInt32(pb + csParam + 2));
469	size_t actual = Sys_write(info->fh, data, 0, 2880*512);
470	if (actual != 2880*512)
471	err = writErr;
472	}
473	break;
474
475	default:
476	printf("WARNING: Unknown SonyControl(%d)\n", code);
477	err = controlErr;
478	break;
479	}
480
481	return set_dsk_err(err);
482	}
483
484
485	/*
486	* Driver Status() routine
487	*/
488
489	int16 SonyStatus(uint32 pb, uint32 dce)
490	{
491	uint16 code = ReadMacInt16(pb + csCode);
492	D(bug("SonyStatus %d\n", code));
493
494	// Drive valid?
495	DriveInfo *info;
496	if ((info = get_drive_info(ReadMacInt16(pb + ioVRefNum))) == NULL)
497	return set_dsk_err(nsDrvErr);
498
499	int16 err = noErr;
500	switch (code) {
501	case 6: // Return format list
502	if (ReadMacInt16(pb + csParam) > 0) {
503	uint32 adr = ReadMacInt32(pb + csParam + 2);
504	WriteMacInt16(pb + csParam, 1); // 1 format
505	WriteMacInt32(adr, 2880); // 2880 sectors
506	WriteMacInt32(adr + 4, 0xd2120050); // 2 heads, 18 secs/track, 80 tracks
507	} else
508	err = paramErr;
509	break;
510
511	case 8: // Get drive status
512	Mac2Mac_memcpy(pb + csParam, info->status, 22);
513	break;
514
515	case 10: // Get disk type
516	WriteMacInt32(pb + csParam, ReadMacInt32(info->status + dsMFMDrive) & 0xffffff00 \| 0xfe);
517	break;
518
519	case 0x4456: // Duplicator version supported ('DV')
520	WriteMacInt16(pb + csParam, 0x0410);
521	break;
522
523	case 0x5343: // Get address header format byte ('SC')
524	WriteMacInt8(pb + csParam, 0x22); // 512 bytes/sector
525	break;
526
527	default:
528	printf("WARNING: Unknown SonyStatus(%d)\n", code);
529	err = statusErr;
530	break;
531	}
532
533	return set_dsk_err(err);
534	}
535
536
537	/*
538	* Driver interrupt routine (1Hz) - check for volumes to be mounted
539	*/
540
541	void SonyInterrupt(void)
542	{
543	if (!acc_run_called)
544	return;
545
546	mount_mountable_volumes();
547	}